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c84b8b50 S |
1 | /* |
2 | * Copyright 2003 Digi International (www.digi.com) | |
3 | * Scott H Kilau <Scott_Kilau at digi dot com> | |
4 | * | |
5 | * This program is free software; you can redistribute it and/or modify | |
6 | * it under the terms of the GNU General Public License as published by | |
7 | * the Free Software Foundation; either version 2, or (at your option) | |
8 | * any later version. | |
818cc6fe | 9 | * |
c84b8b50 | 10 | * This program is distributed in the hope that it will be useful, |
818cc6fe MI |
11 | * but WITHOUT ANY WARRANTY, EXPRESS OR IMPLIED; without even the |
12 | * implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR | |
c84b8b50 | 13 | * PURPOSE. See the GNU General Public License for more details. |
818cc6fe | 14 | * |
c84b8b50 S |
15 | * You should have received a copy of the GNU General Public License |
16 | * along with this program; if not, write to the Free Software | |
17 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. | |
18 | * | |
19 | * | |
20 | * NOTE TO LINUX KERNEL HACKERS: DO NOT REFORMAT THIS CODE! | |
21 | * | |
22 | * This is shared code between Digi's CVS archive and the | |
23 | * Linux Kernel sources. | |
24 | * Changing the source just for reformatting needlessly breaks | |
25 | * our CVS diff history. | |
26 | * | |
27 | * Send any bug fixes/changes to: Eng.Linux at digi dot com. | |
28 | * Thank you. | |
29 | * | |
c84b8b50 S |
30 | */ |
31 | ||
b28ec88a MH |
32 | /* |
33 | * In the original out of kernel Digi dgap driver, firmware | |
34 | * loading was done via user land to driver handshaking. | |
35 | * | |
36 | * For cards that support a concentrator (port expander), | |
37 | * I believe the concentrator its self told the card which | |
38 | * concentrator is actually attached and then that info | |
39 | * was used to tell user land which concentrator firmware | |
40 | * image was to be downloaded. I think even the BIOS or | |
41 | * FEP images required could change with the connection | |
42 | * of a particular concentrator. | |
43 | * | |
44 | * Since I have no access to any of these cards or | |
45 | * concentrators, I cannot put the correct concentrator | |
46 | * firmware file names into the firmware_info structure | |
47 | * as is now done for the BIOS and FEP images. | |
48 | * | |
49 | * I think, but am not certain, that the cards supporting | |
50 | * concentrators will function without them. So support | |
51 | * of these cards has been left in this driver. | |
52 | * | |
53 | * In order to fully support those cards, they would | |
54 | * either have to be acquired for dissection or maybe | |
55 | * Digi International could provide some assistance. | |
56 | */ | |
57 | #undef DIGI_CONCENTRATORS_SUPPORTED | |
c84b8b50 S |
58 | |
59 | #include <linux/kernel.h> | |
c84b8b50 S |
60 | #include <linux/module.h> |
61 | #include <linux/pci.h> | |
62 | #include <linux/delay.h> /* For udelay */ | |
351699d7 | 63 | #include <linux/slab.h> |
3d9dc5db | 64 | #include <linux/uaccess.h> |
c84b8b50 | 65 | #include <linux/sched.h> |
c84b8b50 | 66 | |
a6792a3e MH |
67 | #include <linux/interrupt.h> /* For tasklet and interrupt structs/defines */ |
68 | #include <linux/ctype.h> | |
69 | #include <linux/tty.h> | |
70 | #include <linux/tty_flip.h> | |
71 | #include <linux/serial_reg.h> | |
3d9dc5db | 72 | #include <linux/io.h> /* For read[bwl]/write[bwl] */ |
a6792a3e | 73 | |
7568f7d3 MH |
74 | #include <linux/string.h> |
75 | #include <linux/device.h> | |
76 | #include <linux/kdev_t.h> | |
b28ec88a | 77 | #include <linux/firmware.h> |
7568f7d3 | 78 | |
ffc1c1da | 79 | #include "dgap.h" |
a6792a3e MH |
80 | |
81 | #define init_MUTEX(sem) sema_init(sem, 1) | |
82 | #define DECLARE_MUTEX(name) \ | |
7d6069d7 | 83 | struct semaphore name = __SEMAPHORE_INITIALIZER(name, 1) |
c84b8b50 S |
84 | |
85 | MODULE_LICENSE("GPL"); | |
86 | MODULE_AUTHOR("Digi International, http://www.digi.com"); | |
87 | MODULE_DESCRIPTION("Driver for the Digi International EPCA PCI based product line"); | |
88 | MODULE_SUPPORTED_DEVICE("dgap"); | |
89 | ||
c84b8b50 S |
90 | /************************************************************************** |
91 | * | |
92 | * protos for this file | |
93 | * | |
94 | */ | |
95 | ||
b115b024 MH |
96 | static int dgap_start(void); |
97 | static void dgap_init_globals(void); | |
98 | static int dgap_found_board(struct pci_dev *pdev, int id); | |
99 | static void dgap_cleanup_board(struct board_t *brd); | |
100 | static void dgap_poll_handler(ulong dummy); | |
101 | static int dgap_init_pci(void); | |
102 | static int dgap_init_one(struct pci_dev *pdev, const struct pci_device_id *ent); | |
103 | static void dgap_remove_one(struct pci_dev *dev); | |
104 | static int dgap_probe1(struct pci_dev *pdev, int card_type); | |
105 | static int dgap_do_remap(struct board_t *brd); | |
106 | static irqreturn_t dgap_intr(int irq, void *voidbrd); | |
c84b8b50 | 107 | |
a6792a3e MH |
108 | /* Our function prototypes */ |
109 | static int dgap_tty_open(struct tty_struct *tty, struct file *file); | |
110 | static void dgap_tty_close(struct tty_struct *tty, struct file *file); | |
2f60b333 MH |
111 | static int dgap_block_til_ready(struct tty_struct *tty, struct file *file, |
112 | struct channel_t *ch); | |
113 | static int dgap_tty_ioctl(struct tty_struct *tty, unsigned int cmd, | |
114 | unsigned long arg); | |
115 | static int dgap_tty_digigeta(struct tty_struct *tty, | |
116 | struct digi_t __user *retinfo); | |
117 | static int dgap_tty_digiseta(struct tty_struct *tty, | |
118 | struct digi_t __user *new_info); | |
a6792a3e MH |
119 | static int dgap_tty_digigetedelay(struct tty_struct *tty, int __user *retinfo); |
120 | static int dgap_tty_digisetedelay(struct tty_struct *tty, int __user *new_info); | |
5e9d8172 MH |
121 | static int dgap_tty_write_room(struct tty_struct *tty); |
122 | static int dgap_tty_chars_in_buffer(struct tty_struct *tty); | |
a6792a3e MH |
123 | static void dgap_tty_start(struct tty_struct *tty); |
124 | static void dgap_tty_stop(struct tty_struct *tty); | |
125 | static void dgap_tty_throttle(struct tty_struct *tty); | |
126 | static void dgap_tty_unthrottle(struct tty_struct *tty); | |
127 | static void dgap_tty_flush_chars(struct tty_struct *tty); | |
128 | static void dgap_tty_flush_buffer(struct tty_struct *tty); | |
129 | static void dgap_tty_hangup(struct tty_struct *tty); | |
130 | static int dgap_wait_for_drain(struct tty_struct *tty); | |
2f60b333 MH |
131 | static int dgap_set_modem_info(struct tty_struct *tty, unsigned int command, |
132 | unsigned int __user *value); | |
133 | static int dgap_get_modem_info(struct channel_t *ch, | |
134 | unsigned int __user *value); | |
135 | static int dgap_tty_digisetcustombaud(struct tty_struct *tty, | |
136 | int __user *new_info); | |
137 | static int dgap_tty_digigetcustombaud(struct tty_struct *tty, | |
138 | int __user *retinfo); | |
a6792a3e | 139 | static int dgap_tty_tiocmget(struct tty_struct *tty); |
2f60b333 MH |
140 | static int dgap_tty_tiocmset(struct tty_struct *tty, unsigned int set, |
141 | unsigned int clear); | |
a6792a3e MH |
142 | static int dgap_tty_send_break(struct tty_struct *tty, int msec); |
143 | static void dgap_tty_wait_until_sent(struct tty_struct *tty, int timeout); | |
2f60b333 MH |
144 | static int dgap_tty_write(struct tty_struct *tty, const unsigned char *buf, |
145 | int count); | |
146 | static void dgap_tty_set_termios(struct tty_struct *tty, | |
147 | struct ktermios *old_termios); | |
a6792a3e MH |
148 | static int dgap_tty_put_char(struct tty_struct *tty, unsigned char c); |
149 | static void dgap_tty_send_xchar(struct tty_struct *tty, char ch); | |
150 | ||
b115b024 | 151 | static int dgap_tty_register(struct board_t *brd); |
b115b024 | 152 | static int dgap_tty_init(struct board_t *); |
b115b024 MH |
153 | static void dgap_tty_uninit(struct board_t *); |
154 | static void dgap_carrier(struct channel_t *ch); | |
155 | static void dgap_input(struct channel_t *ch); | |
4aeafa87 | 156 | |
b053bb86 MH |
157 | /* |
158 | * Our function prototypes from dgap_fep5 | |
159 | */ | |
160 | static void dgap_cmdw_ext(struct channel_t *ch, u16 cmd, u16 word, uint ncmds); | |
161 | static int dgap_event(struct board_t *bd); | |
162 | ||
fe0ef8e6 | 163 | static void dgap_poll_tasklet(unsigned long data); |
2f60b333 MH |
164 | static void dgap_cmdb(struct channel_t *ch, uchar cmd, uchar byte1, |
165 | uchar byte2, uint ncmds); | |
fe0ef8e6 MH |
166 | static void dgap_cmdw(struct channel_t *ch, uchar cmd, u16 word, uint ncmds); |
167 | static void dgap_wmove(struct channel_t *ch, char *buf, uint cnt); | |
168 | static int dgap_param(struct tty_struct *tty); | |
2f60b333 MH |
169 | static void dgap_parity_scan(struct channel_t *ch, unsigned char *cbuf, |
170 | unsigned char *fbuf, int *len); | |
fe0ef8e6 MH |
171 | static uint dgap_get_custom_baud(struct channel_t *ch); |
172 | static void dgap_firmware_reset_port(struct channel_t *ch); | |
173 | ||
69edaa21 MH |
174 | /* |
175 | * Function prototypes from dgap_parse.c. | |
176 | */ | |
177 | static int dgap_gettok(char **in, struct cnode *p); | |
178 | static char *dgap_getword(char **in); | |
179 | static char *dgap_savestring(char *s); | |
180 | static struct cnode *dgap_newnode(int t); | |
181 | static int dgap_checknode(struct cnode *p); | |
182 | static void dgap_err(char *s); | |
183 | ||
30580a78 | 184 | /* |
7d6069d7 MH |
185 | * Function prototypes from dgap_sysfs.h |
186 | */ | |
30580a78 MH |
187 | struct board_t; |
188 | struct channel_t; | |
189 | struct un_t; | |
190 | struct pci_driver; | |
191 | struct class_device; | |
192 | ||
fe0ef8e6 MH |
193 | static void dgap_create_ports_sysfiles(struct board_t *bd); |
194 | static void dgap_remove_ports_sysfiles(struct board_t *bd); | |
30580a78 | 195 | |
434b679b | 196 | static int dgap_create_driver_sysfiles(struct pci_driver *); |
fe0ef8e6 | 197 | static void dgap_remove_driver_sysfiles(struct pci_driver *); |
30580a78 | 198 | |
fe0ef8e6 MH |
199 | static void dgap_create_tty_sysfs(struct un_t *un, struct device *c); |
200 | static void dgap_remove_tty_sysfs(struct device *c); | |
30580a78 | 201 | |
9e9b3bb7 MH |
202 | /* |
203 | * Function prototypes from dgap_parse.h | |
204 | */ | |
fe0ef8e6 MH |
205 | static int dgap_parsefile(char **in, int Remove); |
206 | static struct cnode *dgap_find_config(int type, int bus, int slot); | |
207 | static uint dgap_config_get_number_of_ports(struct board_t *bd); | |
208 | static char *dgap_create_config_string(struct board_t *bd, char *string); | |
fe0ef8e6 MH |
209 | static uint dgap_config_get_useintr(struct board_t *bd); |
210 | static uint dgap_config_get_altpin(struct board_t *bd); | |
211 | ||
b115b024 | 212 | static int dgap_ms_sleep(ulong ms); |
2f60b333 MH |
213 | static void dgap_do_bios_load(struct board_t *brd, uchar __user *ubios, |
214 | int len); | |
b115b024 | 215 | static void dgap_do_fep_load(struct board_t *brd, uchar __user *ufep, int len); |
b28ec88a | 216 | #ifdef DIGI_CONCENTRATORS_SUPPORTED |
b115b024 | 217 | static void dgap_do_conc_load(struct board_t *brd, uchar *uaddr, int len); |
b28ec88a | 218 | #endif |
b115b024 MH |
219 | static int dgap_after_config_loaded(int board); |
220 | static int dgap_finalize_board_init(struct board_t *brd); | |
fe0ef8e6 | 221 | |
b28ec88a MH |
222 | static void dgap_get_vpd(struct board_t *brd); |
223 | static void dgap_do_reset_board(struct board_t *brd); | |
224 | static void dgap_do_wait_for_bios(struct board_t *brd); | |
225 | static void dgap_do_wait_for_fep(struct board_t *brd); | |
6c8b84ef | 226 | static int dgap_tty_register_ports(struct board_t *brd); |
b28ec88a | 227 | static int dgap_firmware_load(struct pci_dev *pdev, int card_type); |
9e9b3bb7 | 228 | |
01a8d255 MH |
229 | /* Driver unload function */ |
230 | static void dgap_cleanup_module(void); | |
c84b8b50 | 231 | |
c84b8b50 S |
232 | module_exit(dgap_cleanup_module); |
233 | ||
c84b8b50 S |
234 | /* |
235 | * File operations permitted on Control/Management major. | |
236 | */ | |
305ec874 MH |
237 | static const struct file_operations DgapBoardFops = { |
238 | .owner = THIS_MODULE, | |
c84b8b50 S |
239 | }; |
240 | ||
c84b8b50 S |
241 | /* |
242 | * Globals | |
243 | */ | |
b115b024 MH |
244 | static uint dgap_NumBoards; |
245 | static struct board_t *dgap_Board[MAXBOARDS]; | |
b115b024 MH |
246 | static ulong dgap_poll_counter; |
247 | static char *dgap_config_buf; | |
248 | static int dgap_driver_state = DRIVER_INITIALIZED; | |
c84b8b50 | 249 | DEFINE_SPINLOCK(dgap_dl_lock); |
b115b024 MH |
250 | static wait_queue_head_t dgap_dl_wait; |
251 | static int dgap_dl_action; | |
252 | static int dgap_poll_tick = 20; /* Poll interval - 20 ms */ | |
c84b8b50 S |
253 | |
254 | /* | |
255 | * Static vars. | |
256 | */ | |
b115b024 | 257 | static struct class *dgap_class; |
c84b8b50 | 258 | |
b115b024 | 259 | static struct board_t *dgap_BoardsByMajor[256]; |
b053bb86 | 260 | static uint dgap_count = 500; |
a6792a3e | 261 | |
c84b8b50 S |
262 | /* |
263 | * Poller stuff | |
264 | */ | |
fe0ef8e6 | 265 | DEFINE_SPINLOCK(dgap_poll_lock); /* Poll scheduling lock */ |
b115b024 MH |
266 | static ulong dgap_poll_time; /* Time of next poll */ |
267 | static uint dgap_poll_stop; /* Used to tell poller to stop */ | |
c84b8b50 S |
268 | static struct timer_list dgap_poll_timer; |
269 | ||
b28ec88a MH |
270 | /* |
271 | SUPPORTED PRODUCTS | |
272 | ||
273 | Card Model Number of Ports Interface | |
274 | ---------------------------------------------------------------- | |
275 | Acceleport Xem 4 - 64 (EIA232 & EIA422) | |
276 | Acceleport Xr 4 & 8 (EIA232) | |
277 | Acceleport Xr 920 4 & 8 (EIA232) | |
278 | Acceleport C/X 8 - 128 (EIA232) | |
279 | Acceleport EPC/X 8 - 224 (EIA232) | |
280 | Acceleport Xr/422 4 & 8 (EIA422) | |
281 | Acceleport 2r/920 2 (EIA232) | |
282 | Acceleport 4r/920 4 (EIA232) | |
283 | Acceleport 8r/920 8 (EIA232) | |
284 | ||
285 | IBM 8-Port Asynchronous PCI Adapter (EIA232) | |
286 | IBM 128-Port Asynchronous PCI Adapter (EIA232 & EIA422) | |
287 | */ | |
c84b8b50 S |
288 | |
289 | static struct pci_device_id dgap_pci_tbl[] = { | |
2f60b333 MH |
290 | { DIGI_VID, PCI_DEV_XEM_DID, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 }, |
291 | { DIGI_VID, PCI_DEV_CX_DID, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 1 }, | |
292 | { DIGI_VID, PCI_DEV_CX_IBM_DID, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 2 }, | |
293 | { DIGI_VID, PCI_DEV_EPCJ_DID, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 3 }, | |
294 | { DIGI_VID, PCI_DEV_920_2_DID, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 4 }, | |
295 | { DIGI_VID, PCI_DEV_920_4_DID, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 5 }, | |
296 | { DIGI_VID, PCI_DEV_920_8_DID, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 6 }, | |
297 | { DIGI_VID, PCI_DEV_XR_DID, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 7 }, | |
298 | { DIGI_VID, PCI_DEV_XRJ_DID, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 8 }, | |
299 | { DIGI_VID, PCI_DEV_XR_422_DID, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 9 }, | |
300 | { DIGI_VID, PCI_DEV_XR_IBM_DID, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 10 }, | |
301 | { DIGI_VID, PCI_DEV_XR_SAIP_DID, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 11 }, | |
302 | { DIGI_VID, PCI_DEV_XR_BULL_DID, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 12 }, | |
303 | { DIGI_VID, PCI_DEV_920_8_HP_DID, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 13 }, | |
304 | { DIGI_VID, PCI_DEV_XEM_HP_DID, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 14 }, | |
c84b8b50 S |
305 | {0,} /* 0 terminated list. */ |
306 | }; | |
307 | MODULE_DEVICE_TABLE(pci, dgap_pci_tbl); | |
308 | ||
c84b8b50 S |
309 | /* |
310 | * A generic list of Product names, PCI Vendor ID, and PCI Device ID. | |
311 | */ | |
312 | struct board_id { | |
313 | uint config_type; | |
314 | uchar *name; | |
315 | uint maxports; | |
316 | uint dpatype; | |
317 | }; | |
318 | ||
305ec874 | 319 | static struct board_id dgap_Ids[] = { |
2f60b333 MH |
320 | { PPCM, PCI_DEV_XEM_NAME, 64, (T_PCXM|T_PCLITE|T_PCIBUS) }, |
321 | { PCX, PCI_DEV_CX_NAME, 128, (T_CX|T_PCIBUS) }, | |
322 | { PCX, PCI_DEV_CX_IBM_NAME, 128, (T_CX|T_PCIBUS) }, | |
323 | { PEPC, PCI_DEV_EPCJ_NAME, 224, (T_EPC|T_PCIBUS) }, | |
324 | { APORT2_920P, PCI_DEV_920_2_NAME, 2, (T_PCXR|T_PCLITE|T_PCIBUS) }, | |
325 | { APORT4_920P, PCI_DEV_920_4_NAME, 4, (T_PCXR|T_PCLITE|T_PCIBUS) }, | |
326 | { APORT8_920P, PCI_DEV_920_8_NAME, 8, (T_PCXR|T_PCLITE|T_PCIBUS) }, | |
327 | { PAPORT8, PCI_DEV_XR_NAME, 8, (T_PCXR|T_PCLITE|T_PCIBUS) }, | |
328 | { PAPORT8, PCI_DEV_XRJ_NAME, 8, (T_PCXR|T_PCLITE|T_PCIBUS) }, | |
329 | { PAPORT8, PCI_DEV_XR_422_NAME, 8, (T_PCXR|T_PCLITE|T_PCIBUS) }, | |
330 | { PAPORT8, PCI_DEV_XR_IBM_NAME, 8, (T_PCXR|T_PCLITE|T_PCIBUS) }, | |
331 | { PAPORT8, PCI_DEV_XR_SAIP_NAME, 8, (T_PCXR|T_PCLITE|T_PCIBUS) }, | |
332 | { PAPORT8, PCI_DEV_XR_BULL_NAME, 8, (T_PCXR|T_PCLITE|T_PCIBUS) }, | |
333 | { APORT8_920P, PCI_DEV_920_8_HP_NAME, 8, (T_PCXR|T_PCLITE|T_PCIBUS) }, | |
334 | { PPCM, PCI_DEV_XEM_HP_NAME, 64, (T_PCXM|T_PCLITE|T_PCIBUS) }, | |
c84b8b50 S |
335 | {0,} /* 0 terminated list. */ |
336 | }; | |
337 | ||
338 | static struct pci_driver dgap_driver = { | |
339 | .name = "dgap", | |
340 | .probe = dgap_init_one, | |
341 | .id_table = dgap_pci_tbl, | |
342 | .remove = dgap_remove_one, | |
343 | }; | |
344 | ||
b28ec88a MH |
345 | struct firmware_info { |
346 | uchar *conf_name; /* dgap.conf */ | |
347 | uchar *bios_name; /* BIOS filename */ | |
348 | uchar *fep_name; /* FEP filename */ | |
349 | uchar *con_name; /* Concentrator filename FIXME*/ | |
350 | int num; /* sequence number */ | |
351 | }; | |
352 | ||
353 | /* | |
354 | * Firmware - BIOS, FEP, and CONC filenames | |
355 | */ | |
356 | static struct firmware_info fw_info[] = { | |
357 | { "dgap/dgap.conf", "dgap/sxbios.bin", "dgap/sxfep.bin", 0, 0 }, | |
358 | { "dgap/dgap.conf", "dgap/cxpbios.bin", "dgap/cxpfep.bin", 0, 1 }, | |
359 | { "dgap/dgap.conf", "dgap/cxpbios.bin", "dgap/cxpfep.bin", 0, 2 }, | |
360 | { "dgap/dgap.conf", "dgap/pcibios.bin", "dgap/pcifep.bin", 0, 3 }, | |
361 | { "dgap/dgap.conf", "dgap/xrbios.bin", "dgap/xrfep.bin", 0, 4 }, | |
362 | { "dgap/dgap.conf", "dgap/xrbios.bin", "dgap/xrfep.bin", 0, 5 }, | |
363 | { "dgap/dgap.conf", "dgap/xrbios.bin", "dgap/xrfep.bin", 0, 6 }, | |
364 | { "dgap/dgap.conf", "dgap/xrbios.bin", "dgap/xrfep.bin", 0, 7 }, | |
365 | { "dgap/dgap.conf", "dgap/xrbios.bin", "dgap/xrfep.bin", 0, 8 }, | |
366 | { "dgap/dgap.conf", "dgap/xrbios.bin", "dgap/xrfep.bin", 0, 9 }, | |
367 | { "dgap/dgap.conf", "dgap/xrbios.bin", "dgap/xrfep.bin", 0, 10 }, | |
368 | { "dgap/dgap.conf", "dgap/xrbios.bin", "dgap/xrfep.bin", 0, 11 }, | |
369 | { "dgap/dgap.conf", "dgap/xrbios.bin", "dgap/xrfep.bin", 0, 12 }, | |
370 | { "dgap/dgap.conf", "dgap/xrbios.bin", "dgap/xrfep.bin", 0, 13 }, | |
371 | { "dgap/dgap.conf", "dgap/sxbios.bin", "dgap/sxfep.bin", 0, 14 }, | |
372 | {0,} | |
373 | }; | |
c84b8b50 | 374 | |
fe0ef8e6 | 375 | static char *dgap_driver_state_text[] = { |
c84b8b50 S |
376 | "Driver Initialized", |
377 | "Driver needs configuration load.", | |
378 | "Driver requested configuration from download daemon.", | |
379 | "Driver Ready." | |
380 | }; | |
381 | ||
a6792a3e MH |
382 | /* |
383 | * Default transparent print information. | |
384 | */ | |
385 | static struct digi_t dgap_digi_init = { | |
386 | .digi_flags = DIGI_COOK, /* Flags */ | |
387 | .digi_maxcps = 100, /* Max CPS */ | |
388 | .digi_maxchar = 50, /* Max chars in print queue */ | |
389 | .digi_bufsize = 100, /* Printer buffer size */ | |
390 | .digi_onlen = 4, /* size of printer on string */ | |
391 | .digi_offlen = 4, /* size of printer off string */ | |
392 | .digi_onstr = "\033[5i", /* ANSI printer on string ] */ | |
393 | .digi_offstr = "\033[4i", /* ANSI printer off string ] */ | |
394 | .digi_term = "ansi" /* default terminal type */ | |
395 | }; | |
396 | ||
a6792a3e MH |
397 | /* |
398 | * Define a local default termios struct. All ports will be created | |
399 | * with this termios initially. | |
400 | * | |
401 | * This defines a raw port at 9600 baud, 8 data bits, no parity, | |
402 | * 1 stop bit. | |
403 | */ | |
404 | ||
305ec874 | 405 | static struct ktermios DgapDefaultTermios = { |
a6792a3e MH |
406 | .c_iflag = (DEFAULT_IFLAGS), /* iflags */ |
407 | .c_oflag = (DEFAULT_OFLAGS), /* oflags */ | |
408 | .c_cflag = (DEFAULT_CFLAGS), /* cflags */ | |
409 | .c_lflag = (DEFAULT_LFLAGS), /* lflags */ | |
410 | .c_cc = INIT_C_CC, | |
7d6069d7 | 411 | .c_line = 0, |
a6792a3e MH |
412 | }; |
413 | ||
414 | static const struct tty_operations dgap_tty_ops = { | |
415 | .open = dgap_tty_open, | |
416 | .close = dgap_tty_close, | |
417 | .write = dgap_tty_write, | |
418 | .write_room = dgap_tty_write_room, | |
419 | .flush_buffer = dgap_tty_flush_buffer, | |
420 | .chars_in_buffer = dgap_tty_chars_in_buffer, | |
421 | .flush_chars = dgap_tty_flush_chars, | |
422 | .ioctl = dgap_tty_ioctl, | |
423 | .set_termios = dgap_tty_set_termios, | |
424 | .stop = dgap_tty_stop, | |
425 | .start = dgap_tty_start, | |
426 | .throttle = dgap_tty_throttle, | |
427 | .unthrottle = dgap_tty_unthrottle, | |
428 | .hangup = dgap_tty_hangup, | |
429 | .put_char = dgap_tty_put_char, | |
430 | .tiocmget = dgap_tty_tiocmget, | |
431 | .tiocmset = dgap_tty_tiocmset, | |
432 | .break_ctl = dgap_tty_send_break, | |
433 | .wait_until_sent = dgap_tty_wait_until_sent, | |
434 | .send_xchar = dgap_tty_send_xchar | |
435 | }; | |
c84b8b50 | 436 | |
69edaa21 MH |
437 | /* |
438 | * Our needed internal static variables from dgap_parse.c | |
439 | */ | |
440 | static struct cnode dgap_head; | |
441 | #define MAXCWORD 200 | |
442 | static char dgap_cword[MAXCWORD]; | |
443 | ||
444 | struct toklist { | |
445 | int token; | |
446 | char *string; | |
447 | }; | |
448 | ||
449 | static struct toklist dgap_tlist[] = { | |
2f60b333 MH |
450 | { BEGIN, "config_begin" }, |
451 | { END, "config_end" }, | |
452 | { BOARD, "board" }, | |
453 | { PCX, "Digi_AccelePort_C/X_PCI" }, | |
454 | { PEPC, "Digi_AccelePort_EPC/X_PCI" }, | |
455 | { PPCM, "Digi_AccelePort_Xem_PCI" }, | |
456 | { APORT2_920P, "Digi_AccelePort_2r_920_PCI" }, | |
457 | { APORT4_920P, "Digi_AccelePort_4r_920_PCI" }, | |
458 | { APORT8_920P, "Digi_AccelePort_8r_920_PCI" }, | |
459 | { PAPORT4, "Digi_AccelePort_4r_PCI(EIA-232/RS-422)" }, | |
460 | { PAPORT8, "Digi_AccelePort_8r_PCI(EIA-232/RS-422)" }, | |
461 | { IO, "io" }, | |
462 | { PCIINFO, "pciinfo" }, | |
463 | { LINE, "line" }, | |
464 | { CONC, "conc" }, | |
465 | { CONC, "concentrator" }, | |
466 | { CX, "cx" }, | |
467 | { CX, "ccon" }, | |
468 | { EPC, "epccon" }, | |
469 | { EPC, "epc" }, | |
470 | { MOD, "module" }, | |
471 | { ID, "id" }, | |
472 | { STARTO, "start" }, | |
473 | { SPEED, "speed" }, | |
474 | { CABLE, "cable" }, | |
475 | { CONNECT, "connect" }, | |
476 | { METHOD, "method" }, | |
477 | { STATUS, "status" }, | |
478 | { CUSTOM, "Custom" }, | |
479 | { BASIC, "Basic" }, | |
480 | { MEM, "mem" }, | |
481 | { MEM, "memory" }, | |
482 | { PORTS, "ports" }, | |
483 | { MODEM, "modem" }, | |
484 | { NPORTS, "nports" }, | |
485 | { TTYN, "ttyname" }, | |
486 | { CU, "cuname" }, | |
487 | { PRINT, "prname" }, | |
488 | { CMAJOR, "major" }, | |
489 | { ALTPIN, "altpin" }, | |
490 | { USEINTR, "useintr" }, | |
491 | { TTSIZ, "ttysize" }, | |
492 | { CHSIZ, "chsize" }, | |
493 | { BSSIZ, "boardsize" }, | |
494 | { UNTSIZ, "schedsize" }, | |
495 | { F2SIZ, "f2200size" }, | |
496 | { VPSIZ, "vpixsize" }, | |
497 | { 0, NULL } | |
69edaa21 | 498 | }; |
c84b8b50 S |
499 | |
500 | /************************************************************************ | |
501 | * | |
502 | * Driver load/unload functions | |
503 | * | |
504 | ************************************************************************/ | |
505 | ||
506 | /* | |
507 | * init_module() | |
508 | * | |
509 | * Module load. This is where it all starts. | |
510 | */ | |
01a8d255 | 511 | static int dgap_init_module(void) |
c84b8b50 S |
512 | { |
513 | int rc = 0; | |
514 | ||
31960c16 | 515 | pr_info("%s, Digi International Part Number %s\n", DG_NAME, DG_PART); |
c84b8b50 | 516 | |
b28ec88a MH |
517 | dgap_driver_state = DRIVER_NEED_CONFIG_LOAD; |
518 | ||
c84b8b50 | 519 | rc = dgap_start(); |
002de0ba | 520 | if (rc) |
cf42c34d | 521 | return rc; |
c84b8b50 | 522 | |
c84b8b50 | 523 | rc = dgap_init_pci(); |
002de0ba MH |
524 | if (rc) |
525 | goto err_cleanup; | |
526 | ||
527 | rc = dgap_create_driver_sysfiles(&dgap_driver); | |
528 | if (rc) | |
529 | goto err_cleanup; | |
530 | ||
531 | dgap_driver_state = DRIVER_READY; | |
532 | ||
533 | return 0; | |
534 | ||
535 | err_cleanup: | |
c84b8b50 | 536 | |
002de0ba | 537 | dgap_cleanup_module(); |
818cc6fe | 538 | |
cf42c34d | 539 | return rc; |
c84b8b50 | 540 | } |
01a8d255 | 541 | module_init(dgap_init_module); |
c84b8b50 | 542 | |
c84b8b50 S |
543 | /* |
544 | * Start of driver. | |
545 | */ | |
546 | static int dgap_start(void) | |
547 | { | |
548 | int rc = 0; | |
549 | unsigned long flags; | |
0669e5fa | 550 | struct device *device; |
c84b8b50 | 551 | |
af07daa0 AK |
552 | /* |
553 | * make sure that the globals are | |
554 | * init'd before we do anything else | |
555 | */ | |
556 | dgap_init_globals(); | |
c84b8b50 | 557 | |
af07daa0 | 558 | dgap_NumBoards = 0; |
c84b8b50 | 559 | |
af07daa0 | 560 | pr_info("For the tools package please visit http://www.digi.com\n"); |
c84b8b50 | 561 | |
af07daa0 AK |
562 | /* |
563 | * Register our base character device into the kernel. | |
564 | */ | |
565 | ||
566 | /* | |
567 | * Register management/dpa devices | |
568 | */ | |
569 | rc = register_chrdev(DIGI_DGAP_MAJOR, "dgap", &DgapBoardFops); | |
570 | if (rc < 0) | |
571 | return rc; | |
572 | ||
573 | dgap_class = class_create(THIS_MODULE, "dgap_mgmt"); | |
0669e5fa AK |
574 | if (IS_ERR(dgap_class)) { |
575 | rc = PTR_ERR(dgap_class); | |
576 | goto failed_class; | |
577 | } | |
578 | ||
579 | device = device_create(dgap_class, NULL, | |
af07daa0 AK |
580 | MKDEV(DIGI_DGAP_MAJOR, 0), |
581 | NULL, "dgap_mgmt"); | |
0669e5fa AK |
582 | if (IS_ERR(device)) { |
583 | rc = PTR_ERR(device); | |
584 | goto failed_device; | |
585 | } | |
af07daa0 AK |
586 | |
587 | /* Start the poller */ | |
588 | DGAP_LOCK(dgap_poll_lock, flags); | |
589 | init_timer(&dgap_poll_timer); | |
590 | dgap_poll_timer.function = dgap_poll_handler; | |
591 | dgap_poll_timer.data = 0; | |
592 | dgap_poll_time = jiffies + dgap_jiffies_from_ms(dgap_poll_tick); | |
593 | dgap_poll_timer.expires = dgap_poll_time; | |
594 | DGAP_UNLOCK(dgap_poll_lock, flags); | |
595 | ||
596 | add_timer(&dgap_poll_timer); | |
597 | ||
598 | dgap_driver_state = DRIVER_NEED_CONFIG_LOAD; | |
c84b8b50 | 599 | |
cf42c34d | 600 | return rc; |
0669e5fa AK |
601 | |
602 | failed_device: | |
603 | class_destroy(dgap_class); | |
604 | failed_class: | |
605 | unregister_chrdev(DIGI_DGAP_MAJOR, "dgap"); | |
606 | return rc; | |
c84b8b50 S |
607 | } |
608 | ||
c84b8b50 S |
609 | /* |
610 | * Register pci driver, and return how many boards we have. | |
611 | */ | |
612 | static int dgap_init_pci(void) | |
613 | { | |
614 | return pci_register_driver(&dgap_driver); | |
615 | } | |
616 | ||
c84b8b50 S |
617 | /* returns count (>= 0), or negative on error */ |
618 | static int dgap_init_one(struct pci_dev *pdev, const struct pci_device_id *ent) | |
619 | { | |
620 | int rc; | |
621 | ||
622 | /* wake up and enable device */ | |
623 | rc = pci_enable_device(pdev); | |
624 | ||
625 | if (rc < 0) { | |
626 | rc = -EIO; | |
818cc6fe | 627 | } else { |
c84b8b50 S |
628 | rc = dgap_probe1(pdev, ent->driver_data); |
629 | if (rc == 0) { | |
630 | dgap_NumBoards++; | |
b28ec88a | 631 | rc = dgap_firmware_load(pdev, ent->driver_data); |
c84b8b50 S |
632 | } |
633 | } | |
634 | return rc; | |
818cc6fe | 635 | } |
c84b8b50 | 636 | |
c84b8b50 S |
637 | static int dgap_probe1(struct pci_dev *pdev, int card_type) |
638 | { | |
639 | return dgap_found_board(pdev, card_type); | |
640 | } | |
818cc6fe | 641 | |
c84b8b50 S |
642 | static void dgap_remove_one(struct pci_dev *dev) |
643 | { | |
644 | /* Do Nothing */ | |
645 | } | |
646 | ||
c84b8b50 S |
647 | /* |
648 | * dgap_cleanup_module() | |
649 | * | |
650 | * Module unload. This is where it all ends. | |
651 | */ | |
01a8d255 | 652 | static void dgap_cleanup_module(void) |
c84b8b50 S |
653 | { |
654 | int i; | |
655 | ulong lock_flags; | |
656 | ||
657 | DGAP_LOCK(dgap_poll_lock, lock_flags); | |
658 | dgap_poll_stop = 1; | |
659 | DGAP_UNLOCK(dgap_poll_lock, lock_flags); | |
660 | ||
661 | /* Turn off poller right away. */ | |
b115b024 | 662 | del_timer_sync(&dgap_poll_timer); |
c84b8b50 | 663 | |
c84b8b50 S |
664 | dgap_remove_driver_sysfiles(&dgap_driver); |
665 | ||
af07daa0 AK |
666 | device_destroy(dgap_class, MKDEV(DIGI_DGAP_MAJOR, 0)); |
667 | class_destroy(dgap_class); | |
668 | unregister_chrdev(DIGI_DGAP_MAJOR, "dgap"); | |
c84b8b50 | 669 | |
57a42192 | 670 | kfree(dgap_config_buf); |
c84b8b50 S |
671 | |
672 | for (i = 0; i < dgap_NumBoards; ++i) { | |
673 | dgap_remove_ports_sysfiles(dgap_Board[i]); | |
674 | dgap_tty_uninit(dgap_Board[i]); | |
675 | dgap_cleanup_board(dgap_Board[i]); | |
676 | } | |
677 | ||
c84b8b50 S |
678 | if (dgap_NumBoards) |
679 | pci_unregister_driver(&dgap_driver); | |
680 | } | |
681 | ||
c84b8b50 S |
682 | /* |
683 | * dgap_cleanup_board() | |
684 | * | |
685 | * Free all the memory associated with a board | |
686 | */ | |
687 | static void dgap_cleanup_board(struct board_t *brd) | |
688 | { | |
689 | int i = 0; | |
690 | ||
7d6069d7 | 691 | if (!brd || brd->magic != DGAP_BOARD_MAGIC) |
cf42c34d | 692 | return; |
c84b8b50 S |
693 | |
694 | if (brd->intr_used && brd->irq) | |
695 | free_irq(brd->irq, brd); | |
696 | ||
697 | tasklet_kill(&brd->helper_tasklet); | |
698 | ||
699 | if (brd->re_map_port) { | |
700 | release_mem_region(brd->membase + 0x200000, 0x200000); | |
701 | iounmap(brd->re_map_port); | |
702 | brd->re_map_port = NULL; | |
703 | } | |
704 | ||
705 | if (brd->re_map_membase) { | |
706 | release_mem_region(brd->membase, 0x200000); | |
707 | iounmap(brd->re_map_membase); | |
708 | brd->re_map_membase = NULL; | |
709 | } | |
710 | ||
c84b8b50 | 711 | /* Free all allocated channels structs */ |
9b073ac5 MH |
712 | for (i = 0; i < MAXPORTS ; i++) |
713 | kfree(brd->channels[i]); | |
c84b8b50 | 714 | |
57a42192 LL |
715 | kfree(brd->flipbuf); |
716 | kfree(brd->flipflagbuf); | |
c84b8b50 S |
717 | |
718 | dgap_Board[brd->boardnum] = NULL; | |
719 | ||
7d6069d7 | 720 | kfree(brd); |
c84b8b50 S |
721 | } |
722 | ||
c84b8b50 S |
723 | /* |
724 | * dgap_found_board() | |
725 | * | |
726 | * A board has been found, init it. | |
727 | */ | |
728 | static int dgap_found_board(struct pci_dev *pdev, int id) | |
729 | { | |
730 | struct board_t *brd; | |
731 | unsigned int pci_irq; | |
732 | int i = 0; | |
c84b8b50 S |
733 | |
734 | /* get the board structure and prep it */ | |
9b073ac5 | 735 | brd = kzalloc(sizeof(struct board_t), GFP_KERNEL); |
31960c16 | 736 | if (!brd) |
cf42c34d | 737 | return -ENOMEM; |
c84b8b50 | 738 | |
9b073ac5 MH |
739 | dgap_Board[dgap_NumBoards] = brd; |
740 | ||
c84b8b50 S |
741 | /* store the info for the board we've found */ |
742 | brd->magic = DGAP_BOARD_MAGIC; | |
743 | brd->boardnum = dgap_NumBoards; | |
744 | brd->firstminor = 0; | |
745 | brd->vendor = dgap_pci_tbl[id].vendor; | |
746 | brd->device = dgap_pci_tbl[id].device; | |
747 | brd->pdev = pdev; | |
748 | brd->pci_bus = pdev->bus->number; | |
749 | brd->pci_slot = PCI_SLOT(pdev->devfn); | |
750 | brd->name = dgap_Ids[id].name; | |
751 | brd->maxports = dgap_Ids[id].maxports; | |
752 | brd->type = dgap_Ids[id].config_type; | |
753 | brd->dpatype = dgap_Ids[id].dpatype; | |
754 | brd->dpastatus = BD_NOFEP; | |
755 | init_waitqueue_head(&brd->state_wait); | |
756 | ||
757 | DGAP_SPINLOCK_INIT(brd->bd_lock); | |
758 | ||
759 | brd->state = BOARD_FOUND; | |
760 | brd->runwait = 0; | |
761 | brd->inhibit_poller = FALSE; | |
762 | brd->wait_for_bios = 0; | |
763 | brd->wait_for_fep = 0; | |
764 | ||
305ec874 | 765 | for (i = 0; i < MAXPORTS; i++) |
c84b8b50 | 766 | brd->channels[i] = NULL; |
c84b8b50 S |
767 | |
768 | /* store which card & revision we have */ | |
769 | pci_read_config_word(pdev, PCI_SUBSYSTEM_VENDOR_ID, &brd->subvendor); | |
770 | pci_read_config_word(pdev, PCI_SUBSYSTEM_ID, &brd->subdevice); | |
771 | pci_read_config_byte(pdev, PCI_REVISION_ID, &brd->rev); | |
772 | ||
773 | pci_irq = pdev->irq; | |
774 | brd->irq = pci_irq; | |
775 | ||
776 | /* get the PCI Base Address Registers */ | |
777 | ||
778 | /* Xr Jupiter and EPC use BAR 2 */ | |
2f60b333 | 779 | if (brd->device == PCI_DEV_XRJ_DID || brd->device == PCI_DEV_EPCJ_DID) { |
c84b8b50 S |
780 | brd->membase = pci_resource_start(pdev, 2); |
781 | brd->membase_end = pci_resource_end(pdev, 2); | |
782 | } | |
783 | /* Everyone else uses BAR 0 */ | |
784 | else { | |
785 | brd->membase = pci_resource_start(pdev, 0); | |
786 | brd->membase_end = pci_resource_end(pdev, 0); | |
787 | } | |
788 | ||
31960c16 | 789 | if (!brd->membase) |
c84b8b50 | 790 | return -ENODEV; |
c84b8b50 S |
791 | |
792 | if (brd->membase & 1) | |
793 | brd->membase &= ~3; | |
794 | else | |
795 | brd->membase &= ~15; | |
796 | ||
797 | /* | |
798 | * On the PCI boards, there is no IO space allocated | |
799 | * The I/O registers will be in the first 3 bytes of the | |
800 | * upper 2MB of the 4MB memory space. The board memory | |
801 | * will be mapped into the low 2MB of the 4MB memory space | |
802 | */ | |
803 | brd->port = brd->membase + PCI_IO_OFFSET; | |
804 | brd->port_end = brd->port + PCI_IO_SIZE; | |
805 | ||
c84b8b50 S |
806 | /* |
807 | * Special initialization for non-PLX boards | |
808 | */ | |
2f60b333 | 809 | if (brd->device != PCI_DEV_XRJ_DID && brd->device != PCI_DEV_EPCJ_DID) { |
c84b8b50 S |
810 | unsigned short cmd; |
811 | ||
812 | pci_write_config_byte(pdev, 0x40, 0); | |
813 | pci_write_config_byte(pdev, 0x46, 0); | |
814 | ||
818cc6fe | 815 | /* Limit burst length to 2 doubleword transactions */ |
c84b8b50 S |
816 | pci_write_config_byte(pdev, 0x42, 1); |
817 | ||
818 | /* | |
819 | * Enable IO and mem if not already done. | |
820 | * This was needed for support on Itanium. | |
821 | */ | |
822 | pci_read_config_word(pdev, PCI_COMMAND, &cmd); | |
823 | cmd |= (PCI_COMMAND_IO | PCI_COMMAND_MEMORY); | |
824 | pci_write_config_word(pdev, PCI_COMMAND, cmd); | |
825 | } | |
826 | ||
827 | /* init our poll helper tasklet */ | |
2f60b333 MH |
828 | tasklet_init(&brd->helper_tasklet, dgap_poll_tasklet, |
829 | (unsigned long) brd); | |
c84b8b50 | 830 | |
c84b8b50 S |
831 | i = dgap_do_remap(brd); |
832 | if (i) | |
833 | brd->state = BOARD_FAILED; | |
834 | else | |
835 | brd->state = NEED_RESET; | |
836 | ||
cf42c34d | 837 | return 0; |
c84b8b50 S |
838 | } |
839 | ||
840 | ||
305ec874 MH |
841 | static int dgap_finalize_board_init(struct board_t *brd) |
842 | { | |
7d6069d7 | 843 | int rc; |
c84b8b50 | 844 | |
c84b8b50 | 845 | if (!brd || brd->magic != DGAP_BOARD_MAGIC) |
cf42c34d | 846 | return -ENODEV; |
c84b8b50 | 847 | |
c84b8b50 S |
848 | brd->use_interrupts = dgap_config_get_useintr(brd); |
849 | ||
850 | /* | |
851 | * Set up our interrupt handler if we are set to do interrupts. | |
852 | */ | |
853 | if (brd->use_interrupts && brd->irq) { | |
854 | ||
855 | rc = request_irq(brd->irq, dgap_intr, IRQF_SHARED, "DGAP", brd); | |
856 | ||
31960c16 | 857 | if (rc) |
c84b8b50 | 858 | brd->intr_used = 0; |
c84b8b50 S |
859 | else |
860 | brd->intr_used = 1; | |
861 | } else { | |
862 | brd->intr_used = 0; | |
863 | } | |
864 | ||
cf42c34d | 865 | return 0; |
c84b8b50 S |
866 | } |
867 | ||
b28ec88a MH |
868 | static int dgap_firmware_load(struct pci_dev *pdev, int card_type) |
869 | { | |
870 | struct board_t *brd = dgap_Board[dgap_NumBoards - 1]; | |
871 | const struct firmware *fw; | |
872 | int ret; | |
873 | ||
874 | dgap_get_vpd(brd); | |
875 | dgap_do_reset_board(brd); | |
876 | ||
877 | if ((fw_info[card_type].conf_name) && | |
878 | (dgap_driver_state == DRIVER_NEED_CONFIG_LOAD)) { | |
879 | ret = request_firmware(&fw, fw_info[card_type].conf_name, | |
880 | &pdev->dev); | |
881 | if (ret) { | |
882 | pr_err("dgap: config file %s not found\n", | |
883 | fw_info[card_type].conf_name); | |
884 | return ret; | |
885 | } | |
886 | if (!dgap_config_buf) { | |
887 | dgap_config_buf = kmalloc(fw->size + 1, GFP_ATOMIC); | |
888 | if (!dgap_config_buf) { | |
889 | release_firmware(fw); | |
890 | return -ENOMEM; | |
891 | } | |
892 | } | |
893 | ||
894 | memcpy(dgap_config_buf, fw->data, fw->size); | |
895 | release_firmware(fw); | |
896 | dgap_config_buf[fw->size + 1] = '\0'; | |
897 | ||
898 | if (dgap_parsefile(&dgap_config_buf, TRUE) != 0) | |
899 | return -EINVAL; | |
900 | ||
901 | dgap_driver_state = -1; | |
902 | } | |
903 | ||
904 | ret = dgap_after_config_loaded(brd->boardnum); | |
905 | if (ret) | |
906 | return ret; | |
907 | /* | |
908 | * Match this board to a config the user created for us. | |
909 | */ | |
910 | brd->bd_config = | |
911 | dgap_find_config(brd->type, brd->pci_bus, brd->pci_slot); | |
912 | ||
913 | /* | |
914 | * Because the 4 port Xr products share the same PCI ID | |
915 | * as the 8 port Xr products, if we receive a NULL config | |
916 | * back, and this is a PAPORT8 board, retry with a | |
917 | * PAPORT4 attempt as well. | |
918 | */ | |
919 | if (brd->type == PAPORT8 && !brd->bd_config) | |
920 | brd->bd_config = | |
921 | dgap_find_config(PAPORT4, brd->pci_bus, brd->pci_slot); | |
922 | ||
923 | if (!brd->bd_config) { | |
924 | pr_err("dgap: No valid configuration found\n"); | |
925 | return -EINVAL; | |
926 | } | |
927 | ||
928 | dgap_tty_register(brd); | |
929 | dgap_finalize_board_init(brd); | |
930 | ||
931 | if (fw_info[card_type].bios_name) { | |
932 | ret = request_firmware(&fw, fw_info[card_type].bios_name, | |
933 | &pdev->dev); | |
934 | if (ret) { | |
935 | pr_err("dgap: bios file %s not found\n", | |
936 | fw_info[card_type].bios_name); | |
937 | return ret; | |
938 | } | |
939 | dgap_do_bios_load(brd, (char *)fw->data, fw->size); | |
940 | release_firmware(fw); | |
941 | ||
942 | /* Wait for BIOS to test board... */ | |
943 | dgap_do_wait_for_bios(brd); | |
944 | ||
945 | if (brd->state != FINISHED_BIOS_LOAD) | |
946 | return -ENXIO; | |
947 | } | |
948 | ||
949 | if (fw_info[card_type].fep_name) { | |
950 | ret = request_firmware(&fw, fw_info[card_type].fep_name, | |
951 | &pdev->dev); | |
952 | if (ret) { | |
953 | pr_err("dgap: fep file %s not found\n", | |
954 | fw_info[card_type].fep_name); | |
955 | return ret; | |
956 | } | |
957 | dgap_do_fep_load(brd, (char *)fw->data, fw->size); | |
958 | release_firmware(fw); | |
959 | ||
960 | /* Wait for FEP to load on board... */ | |
961 | dgap_do_wait_for_fep(brd); | |
962 | ||
963 | if (brd->state != FINISHED_FEP_LOAD) | |
964 | return -ENXIO; | |
965 | } | |
966 | ||
967 | #ifdef DIGI_CONCENTRATORS_SUPPORTED | |
968 | /* | |
969 | * If this is a CX or EPCX, we need to see if the firmware | |
970 | * is requesting a concentrator image from us. | |
971 | */ | |
972 | if ((bd->type == PCX) || (bd->type == PEPC)) { | |
973 | chk_addr = (u16 *) (vaddr + DOWNREQ); | |
974 | /* Nonzero if FEP is requesting concentrator image. */ | |
975 | check = readw(chk_addr); | |
976 | vaddr = brd->re_map_membase; | |
977 | } | |
978 | ||
979 | if (fw_info[card_type].con_name && check && vaddr) { | |
980 | ret = request_firmware(&fw, fw_info[card_type].con_name, | |
981 | &pdev->dev); | |
982 | if (ret) { | |
983 | pr_err("dgap: conc file %s not found\n", | |
984 | fw_info[card_type].con_name); | |
985 | return ret; | |
986 | } | |
987 | /* Put concentrator firmware loading code here */ | |
988 | offset = readw((u16 *) (vaddr + DOWNREQ)); | |
989 | memcpy_toio(offset, fw->data, fw->size); | |
990 | ||
991 | dgap_do_conc_load(brd, (char *)fw->data, fw->size) | |
992 | release_firmware(fw); | |
993 | } | |
994 | #endif | |
995 | /* | |
996 | * Do tty device initialization. | |
997 | */ | |
998 | ret = dgap_tty_init(brd); | |
999 | if (ret < 0) { | |
1000 | dgap_tty_uninit(brd); | |
b28ec88a MH |
1001 | return ret; |
1002 | } | |
1003 | ||
6c8b84ef MH |
1004 | ret = dgap_tty_register_ports(brd); |
1005 | if (ret) | |
1006 | return ret; | |
b28ec88a MH |
1007 | |
1008 | brd->state = BOARD_READY; | |
1009 | brd->dpastatus = BD_RUNNING; | |
1010 | ||
1011 | return 0; | |
1012 | } | |
c84b8b50 S |
1013 | |
1014 | /* | |
1015 | * Remap PCI memory. | |
1016 | */ | |
1017 | static int dgap_do_remap(struct board_t *brd) | |
1018 | { | |
1019 | if (!brd || brd->magic != DGAP_BOARD_MAGIC) | |
1020 | return -ENXIO; | |
1021 | ||
31960c16 | 1022 | if (!request_mem_region(brd->membase, 0x200000, "dgap")) |
c84b8b50 | 1023 | return -ENOMEM; |
c84b8b50 | 1024 | |
2f60b333 MH |
1025 | if (!request_mem_region(brd->membase + PCI_IO_OFFSET, 0x200000, |
1026 | "dgap")) { | |
c84b8b50 S |
1027 | release_mem_region(brd->membase, 0x200000); |
1028 | return -ENOMEM; | |
7d6069d7 | 1029 | } |
c84b8b50 S |
1030 | |
1031 | brd->re_map_membase = ioremap(brd->membase, 0x200000); | |
1032 | if (!brd->re_map_membase) { | |
c84b8b50 S |
1033 | release_mem_region(brd->membase, 0x200000); |
1034 | release_mem_region(brd->membase + PCI_IO_OFFSET, 0x200000); | |
1035 | return -ENOMEM; | |
1036 | } | |
1037 | ||
1038 | brd->re_map_port = ioremap((brd->membase + PCI_IO_OFFSET), 0x200000); | |
1039 | if (!brd->re_map_port) { | |
1040 | release_mem_region(brd->membase, 0x200000); | |
1041 | release_mem_region(brd->membase + PCI_IO_OFFSET, 0x200000); | |
1042 | iounmap(brd->re_map_membase); | |
c84b8b50 S |
1043 | return -ENOMEM; |
1044 | } | |
1045 | ||
c84b8b50 S |
1046 | return 0; |
1047 | } | |
1048 | ||
c84b8b50 S |
1049 | /***************************************************************************** |
1050 | * | |
1051 | * Function: | |
818cc6fe | 1052 | * |
c84b8b50 S |
1053 | * dgap_poll_handler |
1054 | * | |
1055 | * Author: | |
1056 | * | |
1057 | * Scott H Kilau | |
818cc6fe | 1058 | * |
c84b8b50 S |
1059 | * Parameters: |
1060 | * | |
818cc6fe | 1061 | * dummy -- ignored |
c84b8b50 S |
1062 | * |
1063 | * Return Values: | |
1064 | * | |
1065 | * none | |
1066 | * | |
818cc6fe MI |
1067 | * Description: |
1068 | * | |
c84b8b50 S |
1069 | * As each timer expires, it determines (a) whether the "transmit" |
1070 | * waiter needs to be woken up, and (b) whether the poller needs to | |
1071 | * be rescheduled. | |
1072 | * | |
1073 | ******************************************************************************/ | |
1074 | ||
1075 | static void dgap_poll_handler(ulong dummy) | |
1076 | { | |
1077 | int i; | |
7d6069d7 MH |
1078 | struct board_t *brd; |
1079 | unsigned long lock_flags; | |
c84b8b50 S |
1080 | ulong new_time; |
1081 | ||
1082 | dgap_poll_counter++; | |
1083 | ||
c84b8b50 S |
1084 | /* |
1085 | * Do not start the board state machine until | |
1086 | * driver tells us its up and running, and has | |
1087 | * everything it needs. | |
1088 | */ | |
b28ec88a | 1089 | if (dgap_driver_state != DRIVER_READY) |
c84b8b50 | 1090 | goto schedule_poller; |
c84b8b50 S |
1091 | |
1092 | /* | |
1093 | * If we have just 1 board, or the system is not SMP, | |
1094 | * then use the typical old style poller. | |
1095 | * Otherwise, use our new tasklet based poller, which should | |
1096 | * speed things up for multiple boards. | |
1097 | */ | |
b115b024 | 1098 | if ((dgap_NumBoards == 1) || (num_online_cpus() <= 1)) { |
c84b8b50 S |
1099 | for (i = 0; i < dgap_NumBoards; i++) { |
1100 | ||
1101 | brd = dgap_Board[i]; | |
1102 | ||
305ec874 | 1103 | if (brd->state == BOARD_FAILED) |
c84b8b50 | 1104 | continue; |
305ec874 | 1105 | if (!brd->intr_running) |
c84b8b50 S |
1106 | /* Call the real board poller directly */ |
1107 | dgap_poll_tasklet((unsigned long) brd); | |
c84b8b50 | 1108 | } |
305ec874 | 1109 | } else { |
2f60b333 MH |
1110 | /* |
1111 | * Go thru each board, kicking off a | |
1112 | * tasklet for each if needed | |
1113 | */ | |
c84b8b50 S |
1114 | for (i = 0; i < dgap_NumBoards; i++) { |
1115 | brd = dgap_Board[i]; | |
1116 | ||
1117 | /* | |
1118 | * Attempt to grab the board lock. | |
1119 | * | |
2f60b333 MH |
1120 | * If we can't get it, no big deal, the next poll |
1121 | * will get it. Basically, I just really don't want | |
1122 | * to spin in here, because I want to kick off my | |
1123 | * tasklets as fast as I can, and then get out the | |
1124 | * poller. | |
c84b8b50 | 1125 | */ |
305ec874 | 1126 | if (!spin_trylock(&brd->bd_lock)) |
c84b8b50 | 1127 | continue; |
c84b8b50 | 1128 | |
2f60b333 MH |
1129 | /* |
1130 | * If board is in a failed state, don't bother | |
1131 | * scheduling a tasklet | |
1132 | */ | |
c84b8b50 S |
1133 | if (brd->state == BOARD_FAILED) { |
1134 | spin_unlock(&brd->bd_lock); | |
1135 | continue; | |
1136 | } | |
1137 | ||
1138 | /* Schedule a poll helper task */ | |
305ec874 | 1139 | if (!brd->intr_running) |
c84b8b50 | 1140 | tasklet_schedule(&brd->helper_tasklet); |
c84b8b50 S |
1141 | |
1142 | /* | |
1143 | * Can't do DGAP_UNLOCK here, as we don't have | |
1144 | * lock_flags because we did a trylock above. | |
1145 | */ | |
1146 | spin_unlock(&brd->bd_lock); | |
1147 | } | |
1148 | } | |
1149 | ||
1150 | schedule_poller: | |
1151 | ||
1152 | /* | |
1153 | * Schedule ourself back at the nominal wakeup interval. | |
1154 | */ | |
b115b024 | 1155 | DGAP_LOCK(dgap_poll_lock, lock_flags); |
c84b8b50 S |
1156 | dgap_poll_time += dgap_jiffies_from_ms(dgap_poll_tick); |
1157 | ||
1158 | new_time = dgap_poll_time - jiffies; | |
1159 | ||
2f60b333 MH |
1160 | if ((ulong) new_time >= 2 * dgap_poll_tick) { |
1161 | dgap_poll_time = | |
1162 | jiffies + dgap_jiffies_from_ms(dgap_poll_tick); | |
1163 | } | |
c84b8b50 S |
1164 | |
1165 | dgap_poll_timer.function = dgap_poll_handler; | |
1166 | dgap_poll_timer.data = 0; | |
1167 | dgap_poll_timer.expires = dgap_poll_time; | |
b115b024 | 1168 | DGAP_UNLOCK(dgap_poll_lock, lock_flags); |
c84b8b50 S |
1169 | |
1170 | if (!dgap_poll_stop) | |
1171 | add_timer(&dgap_poll_timer); | |
1172 | } | |
1173 | ||
c84b8b50 S |
1174 | /* |
1175 | * dgap_intr() | |
1176 | * | |
1177 | * Driver interrupt handler. | |
1178 | */ | |
1179 | static irqreturn_t dgap_intr(int irq, void *voidbrd) | |
1180 | { | |
1181 | struct board_t *brd = (struct board_t *) voidbrd; | |
1182 | ||
31960c16 | 1183 | if (!brd) |
c84b8b50 | 1184 | return IRQ_NONE; |
c84b8b50 S |
1185 | |
1186 | /* | |
1187 | * Check to make sure its for us. | |
1188 | */ | |
31960c16 | 1189 | if (brd->magic != DGAP_BOARD_MAGIC) |
c84b8b50 | 1190 | return IRQ_NONE; |
c84b8b50 S |
1191 | |
1192 | brd->intr_count++; | |
1193 | ||
1194 | /* | |
1195 | * Schedule tasklet to run at a better time. | |
1196 | */ | |
1197 | tasklet_schedule(&brd->helper_tasklet); | |
1198 | return IRQ_HANDLED; | |
1199 | } | |
1200 | ||
c84b8b50 S |
1201 | /* |
1202 | * dgap_init_globals() | |
1203 | * | |
1204 | * This is where we initialize the globals from the static insmod | |
1205 | * configuration variables. These are declared near the head of | |
1206 | * this file. | |
1207 | */ | |
1208 | static void dgap_init_globals(void) | |
1209 | { | |
1210 | int i = 0; | |
1211 | ||
305ec874 | 1212 | for (i = 0; i < MAXBOARDS; i++) |
c84b8b50 | 1213 | dgap_Board[i] = NULL; |
c84b8b50 | 1214 | |
b115b024 | 1215 | init_timer(&dgap_poll_timer); |
c84b8b50 S |
1216 | |
1217 | init_waitqueue_head(&dgap_dl_wait); | |
1218 | dgap_dl_action = 0; | |
1219 | } | |
1220 | ||
c84b8b50 S |
1221 | /************************************************************************ |
1222 | * | |
1223 | * Utility functions | |
1224 | * | |
1225 | ************************************************************************/ | |
1226 | ||
c84b8b50 S |
1227 | /* |
1228 | * dgap_ms_sleep() | |
1229 | * | |
1230 | * Put the driver to sleep for x ms's | |
1231 | * | |
1232 | * Returns 0 if timed out, !0 (showing signal) if interrupted by a signal. | |
1233 | */ | |
fe0ef8e6 | 1234 | static int dgap_ms_sleep(ulong ms) |
c84b8b50 S |
1235 | { |
1236 | current->state = TASK_INTERRUPTIBLE; | |
1237 | schedule_timeout((ms * HZ) / 1000); | |
cf42c34d | 1238 | return signal_pending(current); |
c84b8b50 S |
1239 | } |
1240 | ||
a6792a3e MH |
1241 | /************************************************************************ |
1242 | * | |
1243 | * TTY Initialization/Cleanup Functions | |
1244 | * | |
1245 | ************************************************************************/ | |
1246 | ||
a6792a3e MH |
1247 | /* |
1248 | * dgap_tty_register() | |
1249 | * | |
1250 | * Init the tty subsystem for this board. | |
1251 | */ | |
fe0ef8e6 | 1252 | static int dgap_tty_register(struct board_t *brd) |
a6792a3e MH |
1253 | { |
1254 | int rc = 0; | |
1255 | ||
a6792a3e MH |
1256 | brd->SerialDriver = alloc_tty_driver(MAXPORTS); |
1257 | ||
1258 | snprintf(brd->SerialName, MAXTTYNAMELEN, "tty_dgap_%d_", brd->boardnum); | |
1259 | brd->SerialDriver->name = brd->SerialName; | |
1260 | brd->SerialDriver->name_base = 0; | |
1261 | brd->SerialDriver->major = 0; | |
1262 | brd->SerialDriver->minor_start = 0; | |
1263 | brd->SerialDriver->type = TTY_DRIVER_TYPE_SERIAL; | |
1264 | brd->SerialDriver->subtype = SERIAL_TYPE_NORMAL; | |
1265 | brd->SerialDriver->init_termios = DgapDefaultTermios; | |
1266 | brd->SerialDriver->driver_name = DRVSTR; | |
2f60b333 MH |
1267 | brd->SerialDriver->flags = (TTY_DRIVER_REAL_RAW | |
1268 | TTY_DRIVER_DYNAMIC_DEV | | |
1269 | TTY_DRIVER_HARDWARE_BREAK); | |
a6792a3e MH |
1270 | |
1271 | /* The kernel wants space to store pointers to tty_structs */ | |
2f60b333 MH |
1272 | brd->SerialDriver->ttys = |
1273 | kzalloc(MAXPORTS * sizeof(struct tty_struct *), GFP_KERNEL); | |
a6792a3e | 1274 | if (!brd->SerialDriver->ttys) |
cf42c34d | 1275 | return -ENOMEM; |
a6792a3e MH |
1276 | |
1277 | /* | |
1278 | * Entry points for driver. Called by the kernel from | |
1279 | * tty_io.c and n_tty.c. | |
1280 | */ | |
1281 | tty_set_operations(brd->SerialDriver, &dgap_tty_ops); | |
1282 | ||
1283 | /* | |
1284 | * If we're doing transparent print, we have to do all of the above | |
1285 | * again, separately so we don't get the LD confused about what major | |
1286 | * we are when we get into the dgap_tty_open() routine. | |
1287 | */ | |
1288 | brd->PrintDriver = alloc_tty_driver(MAXPORTS); | |
1289 | ||
1290 | snprintf(brd->PrintName, MAXTTYNAMELEN, "pr_dgap_%d_", brd->boardnum); | |
1291 | brd->PrintDriver->name = brd->PrintName; | |
1292 | brd->PrintDriver->name_base = 0; | |
1293 | brd->PrintDriver->major = 0; | |
1294 | brd->PrintDriver->minor_start = 0; | |
1295 | brd->PrintDriver->type = TTY_DRIVER_TYPE_SERIAL; | |
1296 | brd->PrintDriver->subtype = SERIAL_TYPE_NORMAL; | |
1297 | brd->PrintDriver->init_termios = DgapDefaultTermios; | |
1298 | brd->PrintDriver->driver_name = DRVSTR; | |
2f60b333 MH |
1299 | brd->PrintDriver->flags = (TTY_DRIVER_REAL_RAW | |
1300 | TTY_DRIVER_DYNAMIC_DEV | | |
1301 | TTY_DRIVER_HARDWARE_BREAK); | |
a6792a3e MH |
1302 | |
1303 | /* The kernel wants space to store pointers to tty_structs */ | |
2f60b333 MH |
1304 | brd->PrintDriver->ttys = |
1305 | kzalloc(MAXPORTS * sizeof(struct tty_struct *), GFP_KERNEL); | |
a6792a3e | 1306 | if (!brd->PrintDriver->ttys) |
cf42c34d | 1307 | return -ENOMEM; |
a6792a3e MH |
1308 | |
1309 | /* | |
1310 | * Entry points for driver. Called by the kernel from | |
1311 | * tty_io.c and n_tty.c. | |
1312 | */ | |
1313 | tty_set_operations(brd->PrintDriver, &dgap_tty_ops); | |
1314 | ||
1315 | if (!brd->dgap_Major_Serial_Registered) { | |
1316 | /* Register tty devices */ | |
1317 | rc = tty_register_driver(brd->SerialDriver); | |
31960c16 | 1318 | if (rc < 0) |
cf42c34d | 1319 | return rc; |
a6792a3e MH |
1320 | brd->dgap_Major_Serial_Registered = TRUE; |
1321 | dgap_BoardsByMajor[brd->SerialDriver->major] = brd; | |
1322 | brd->dgap_Serial_Major = brd->SerialDriver->major; | |
1323 | } | |
1324 | ||
1325 | if (!brd->dgap_Major_TransparentPrint_Registered) { | |
1326 | /* Register Transparent Print devices */ | |
7d6069d7 | 1327 | rc = tty_register_driver(brd->PrintDriver); |
31960c16 | 1328 | if (rc < 0) |
cf42c34d | 1329 | return rc; |
a6792a3e MH |
1330 | brd->dgap_Major_TransparentPrint_Registered = TRUE; |
1331 | dgap_BoardsByMajor[brd->PrintDriver->major] = brd; | |
1332 | brd->dgap_TransparentPrint_Major = brd->PrintDriver->major; | |
1333 | } | |
1334 | ||
cf42c34d | 1335 | return rc; |
a6792a3e MH |
1336 | } |
1337 | ||
a6792a3e MH |
1338 | /* |
1339 | * dgap_tty_init() | |
1340 | * | |
1341 | * Init the tty subsystem. Called once per board after board has been | |
1342 | * downloaded and init'ed. | |
1343 | */ | |
fe0ef8e6 | 1344 | static int dgap_tty_init(struct board_t *brd) |
a6792a3e MH |
1345 | { |
1346 | int i; | |
1347 | int tlw; | |
1348 | uint true_count = 0; | |
1349 | uchar *vaddr; | |
1350 | uchar modem = 0; | |
1351 | struct channel_t *ch; | |
1352 | struct bs_t *bs; | |
1353 | struct cm_t *cm; | |
1354 | ||
1355 | if (!brd) | |
cf42c34d | 1356 | return -ENXIO; |
a6792a3e | 1357 | |
a6792a3e MH |
1358 | /* |
1359 | * Initialize board structure elements. | |
1360 | */ | |
1361 | ||
1362 | vaddr = brd->re_map_membase; | |
1363 | true_count = readw((vaddr + NCHAN)); | |
1364 | ||
1365 | brd->nasync = dgap_config_get_number_of_ports(brd); | |
1366 | ||
305ec874 | 1367 | if (!brd->nasync) |
a6792a3e | 1368 | brd->nasync = brd->maxports; |
a6792a3e | 1369 | |
305ec874 | 1370 | if (brd->nasync > brd->maxports) |
a6792a3e | 1371 | brd->nasync = brd->maxports; |
a6792a3e MH |
1372 | |
1373 | if (true_count != brd->nasync) { | |
249e7343 MH |
1374 | if ((brd->type == PPCM) && (true_count == 64)) { |
1375 | pr_warn("dgap: %s configured for %d ports, has %d ports.\n", | |
31960c16 | 1376 | brd->name, brd->nasync, true_count); |
249e7343 MH |
1377 | pr_warn("dgap: Please make SURE the EBI cable running from the card\n"); |
1378 | pr_warn("dgap: to each EM module is plugged into EBI IN!\n"); | |
1379 | } else if ((brd->type == PPCM) && (true_count == 0)) { | |
1380 | pr_warn("dgap: %s configured for %d ports, has %d ports.\n", | |
31960c16 | 1381 | brd->name, brd->nasync, true_count); |
249e7343 MH |
1382 | pr_warn("dgap: Please make SURE the EBI cable running from the card\n"); |
1383 | pr_warn("dgap: to each EM module is plugged into EBI IN!\n"); | |
1384 | } else | |
31960c16 MH |
1385 | pr_warn("dgap: %s configured for %d ports, has %d ports.\n", |
1386 | brd->name, brd->nasync, true_count); | |
a6792a3e MH |
1387 | |
1388 | brd->nasync = true_count; | |
1389 | ||
1390 | /* If no ports, don't bother going any further */ | |
1391 | if (!brd->nasync) { | |
1392 | brd->state = BOARD_FAILED; | |
1393 | brd->dpastatus = BD_NOFEP; | |
cf42c34d | 1394 | return -ENXIO; |
a6792a3e MH |
1395 | } |
1396 | } | |
1397 | ||
1398 | /* | |
1399 | * Allocate channel memory that might not have been allocated | |
1400 | * when the driver was first loaded. | |
1401 | */ | |
1402 | for (i = 0; i < brd->nasync; i++) { | |
1403 | if (!brd->channels[i]) { | |
2f60b333 MH |
1404 | brd->channels[i] = |
1405 | kzalloc(sizeof(struct channel_t), GFP_ATOMIC); | |
31960c16 MH |
1406 | if (!brd->channels[i]) |
1407 | return -ENOMEM; | |
a6792a3e MH |
1408 | } |
1409 | } | |
1410 | ||
1411 | ch = brd->channels[0]; | |
1412 | vaddr = brd->re_map_membase; | |
1413 | ||
1414 | bs = (struct bs_t *) ((ulong) vaddr + CHANBUF); | |
1415 | cm = (struct cm_t *) ((ulong) vaddr + CMDBUF); | |
1416 | ||
1417 | brd->bd_bs = bs; | |
1418 | ||
1419 | /* Set up channel variables */ | |
1420 | for (i = 0; i < brd->nasync; i++, ch = brd->channels[i], bs++) { | |
1421 | ||
1422 | if (!brd->channels[i]) | |
1423 | continue; | |
1424 | ||
1425 | DGAP_SPINLOCK_INIT(ch->ch_lock); | |
1426 | ||
1427 | /* Store all our magic numbers */ | |
1428 | ch->magic = DGAP_CHANNEL_MAGIC; | |
1429 | ch->ch_tun.magic = DGAP_UNIT_MAGIC; | |
1430 | ch->ch_tun.un_type = DGAP_SERIAL; | |
1431 | ch->ch_tun.un_ch = ch; | |
1432 | ch->ch_tun.un_dev = i; | |
1433 | ||
1434 | ch->ch_pun.magic = DGAP_UNIT_MAGIC; | |
1435 | ch->ch_pun.un_type = DGAP_PRINT; | |
1436 | ch->ch_pun.un_ch = ch; | |
1437 | ch->ch_pun.un_dev = i; | |
1438 | ||
1439 | ch->ch_vaddr = vaddr; | |
1440 | ch->ch_bs = bs; | |
1441 | ch->ch_cm = cm; | |
1442 | ch->ch_bd = brd; | |
1443 | ch->ch_portnum = i; | |
1444 | ch->ch_digi = dgap_digi_init; | |
1445 | ||
1446 | /* | |
1447 | * Set up digi dsr and dcd bits based on altpin flag. | |
1448 | */ | |
1449 | if (dgap_config_get_altpin(brd)) { | |
1450 | ch->ch_dsr = DM_CD; | |
1451 | ch->ch_cd = DM_DSR; | |
1452 | ch->ch_digi.digi_flags |= DIGI_ALTPIN; | |
305ec874 | 1453 | } else { |
a6792a3e MH |
1454 | ch->ch_cd = DM_CD; |
1455 | ch->ch_dsr = DM_DSR; | |
1456 | } | |
1457 | ||
1458 | ch->ch_taddr = vaddr + ((ch->ch_bs->tx_seg) << 4); | |
1459 | ch->ch_raddr = vaddr + ((ch->ch_bs->rx_seg) << 4); | |
1460 | ch->ch_tx_win = 0; | |
1461 | ch->ch_rx_win = 0; | |
1462 | ch->ch_tsize = readw(&(ch->ch_bs->tx_max)) + 1; | |
1463 | ch->ch_rsize = readw(&(ch->ch_bs->rx_max)) + 1; | |
1464 | ch->ch_tstart = 0; | |
1465 | ch->ch_rstart = 0; | |
1466 | ||
1467 | /* .25 second delay */ | |
1468 | ch->ch_close_delay = 250; | |
1469 | ||
1470 | /* | |
1471 | * Set queue water marks, interrupt mask, | |
1472 | * and general tty parameters. | |
1473 | */ | |
2f60b333 MH |
1474 | tlw = ch->ch_tsize >= 2000 ? ((ch->ch_tsize * 5) / 8) : |
1475 | ch->ch_tsize / 2; | |
1476 | ch->ch_tlw = tlw; | |
a6792a3e MH |
1477 | |
1478 | dgap_cmdw(ch, STLOW, tlw, 0); | |
1479 | ||
1480 | dgap_cmdw(ch, SRLOW, ch->ch_rsize / 2, 0); | |
1481 | ||
1482 | dgap_cmdw(ch, SRHIGH, 7 * ch->ch_rsize / 8, 0); | |
1483 | ||
1484 | ch->ch_mistat = readb(&(ch->ch_bs->m_stat)); | |
1485 | ||
1486 | init_waitqueue_head(&ch->ch_flags_wait); | |
1487 | init_waitqueue_head(&ch->ch_tun.un_flags_wait); | |
1488 | init_waitqueue_head(&ch->ch_pun.un_flags_wait); | |
1489 | init_waitqueue_head(&ch->ch_sniff_wait); | |
1490 | ||
1491 | /* Turn on all modem interrupts for now */ | |
1492 | modem = (DM_CD | DM_DSR | DM_CTS | DM_RI); | |
1493 | writeb(modem, &(ch->ch_bs->m_int)); | |
1494 | ||
1495 | /* | |
1496 | * Set edelay to 0 if interrupts are turned on, | |
1497 | * otherwise set edelay to the usual 100. | |
1498 | */ | |
1499 | if (brd->intr_used) | |
1500 | writew(0, &(ch->ch_bs->edelay)); | |
1501 | else | |
1502 | writew(100, &(ch->ch_bs->edelay)); | |
1503 | ||
1504 | writeb(1, &(ch->ch_bs->idata)); | |
1505 | } | |
1506 | ||
cf42c34d | 1507 | return 0; |
a6792a3e MH |
1508 | } |
1509 | ||
a6792a3e MH |
1510 | /* |
1511 | * dgap_tty_uninit() | |
1512 | * | |
1513 | * Uninitialize the TTY portion of this driver. Free all memory and | |
1514 | * resources. | |
1515 | */ | |
fe0ef8e6 | 1516 | static void dgap_tty_uninit(struct board_t *brd) |
a6792a3e | 1517 | { |
6045b6af | 1518 | struct device *dev; |
a6792a3e MH |
1519 | int i = 0; |
1520 | ||
1521 | if (brd->dgap_Major_Serial_Registered) { | |
1522 | dgap_BoardsByMajor[brd->SerialDriver->major] = NULL; | |
1523 | brd->dgap_Serial_Major = 0; | |
1524 | for (i = 0; i < brd->nasync; i++) { | |
6c8b84ef | 1525 | tty_port_destroy(&brd->SerialPorts[i]); |
6045b6af MH |
1526 | dev = brd->channels[i]->ch_tun.un_sysfs; |
1527 | dgap_remove_tty_sysfs(dev); | |
a6792a3e MH |
1528 | tty_unregister_device(brd->SerialDriver, i); |
1529 | } | |
1530 | tty_unregister_driver(brd->SerialDriver); | |
1531 | kfree(brd->SerialDriver->ttys); | |
1532 | brd->SerialDriver->ttys = NULL; | |
1533 | put_tty_driver(brd->SerialDriver); | |
6c8b84ef | 1534 | kfree(brd->SerialPorts); |
a6792a3e MH |
1535 | brd->dgap_Major_Serial_Registered = FALSE; |
1536 | } | |
1537 | ||
1538 | if (brd->dgap_Major_TransparentPrint_Registered) { | |
1539 | dgap_BoardsByMajor[brd->PrintDriver->major] = NULL; | |
1540 | brd->dgap_TransparentPrint_Major = 0; | |
1541 | for (i = 0; i < brd->nasync; i++) { | |
6c8b84ef | 1542 | tty_port_destroy(&brd->PrinterPorts[i]); |
6045b6af MH |
1543 | dev = brd->channels[i]->ch_pun.un_sysfs; |
1544 | dgap_remove_tty_sysfs(dev); | |
a6792a3e MH |
1545 | tty_unregister_device(brd->PrintDriver, i); |
1546 | } | |
1547 | tty_unregister_driver(brd->PrintDriver); | |
1548 | kfree(brd->PrintDriver->ttys); | |
1549 | brd->PrintDriver->ttys = NULL; | |
1550 | put_tty_driver(brd->PrintDriver); | |
6c8b84ef | 1551 | kfree(brd->PrinterPorts); |
a6792a3e MH |
1552 | brd->dgap_Major_TransparentPrint_Registered = FALSE; |
1553 | } | |
1554 | } | |
1555 | ||
a6792a3e | 1556 | #define TMPBUFLEN (1024) |
a6792a3e MH |
1557 | /* |
1558 | * dgap_sniff - Dump data out to the "sniff" buffer if the | |
1559 | * proc sniff file is opened... | |
1560 | */ | |
6045b6af MH |
1561 | static void dgap_sniff_nowait_nolock(struct channel_t *ch, uchar *text, |
1562 | uchar *buf, int len) | |
a6792a3e MH |
1563 | { |
1564 | struct timeval tv; | |
1565 | int n; | |
1566 | int r; | |
1567 | int nbuf; | |
1568 | int i; | |
1569 | int tmpbuflen; | |
1570 | char tmpbuf[TMPBUFLEN]; | |
1571 | char *p = tmpbuf; | |
1572 | int too_much_data; | |
1573 | ||
1574 | /* Leave if sniff not open */ | |
1575 | if (!(ch->ch_sniff_flags & SNIFF_OPEN)) | |
1576 | return; | |
1577 | ||
1578 | do_gettimeofday(&tv); | |
1579 | ||
1580 | /* Create our header for data dump */ | |
1581 | p += sprintf(p, "<%ld %ld><%s><", tv.tv_sec, tv.tv_usec, text); | |
1582 | tmpbuflen = p - tmpbuf; | |
1583 | ||
1584 | do { | |
1585 | too_much_data = 0; | |
1586 | ||
1587 | for (i = 0; i < len && tmpbuflen < (TMPBUFLEN - 4); i++) { | |
1588 | p += sprintf(p, "%02x ", *buf); | |
1589 | buf++; | |
1590 | tmpbuflen = p - tmpbuf; | |
1591 | } | |
1592 | ||
1593 | if (tmpbuflen < (TMPBUFLEN - 4)) { | |
1594 | if (i > 0) | |
1595 | p += sprintf(p - 1, "%s\n", ">"); | |
1596 | else | |
1597 | p += sprintf(p, "%s\n", ">"); | |
1598 | } else { | |
1599 | too_much_data = 1; | |
1600 | len -= i; | |
1601 | } | |
1602 | ||
1603 | nbuf = strlen(tmpbuf); | |
1604 | p = tmpbuf; | |
1605 | ||
1606 | /* | |
1607 | * Loop while data remains. | |
1608 | */ | |
1609 | while (nbuf > 0 && ch->ch_sniff_buf) { | |
1610 | /* | |
1611 | * Determine the amount of available space left in the | |
1612 | * buffer. If there's none, wait until some appears. | |
1613 | */ | |
6045b6af MH |
1614 | n = (ch->ch_sniff_out - ch->ch_sniff_in - 1) & |
1615 | SNIFF_MASK; | |
a6792a3e MH |
1616 | |
1617 | /* | |
6045b6af MH |
1618 | * If there is no space left to write to in our sniff |
1619 | * buffer, we have no choice but to drop the data. | |
1620 | * We *cannot* sleep here waiting for space, because | |
1621 | * this function was probably called by the | |
1622 | * interrupt/timer routines! | |
a6792a3e | 1623 | */ |
305ec874 | 1624 | if (n == 0) |
a6792a3e | 1625 | return; |
a6792a3e MH |
1626 | |
1627 | /* | |
1628 | * Copy as much data as will fit. | |
1629 | */ | |
1630 | ||
1631 | if (n > nbuf) | |
1632 | n = nbuf; | |
1633 | ||
1634 | r = SNIFF_MAX - ch->ch_sniff_in; | |
1635 | ||
1636 | if (r <= n) { | |
1637 | memcpy(ch->ch_sniff_buf + ch->ch_sniff_in, p, r); | |
1638 | ||
1639 | n -= r; | |
1640 | ch->ch_sniff_in = 0; | |
1641 | p += r; | |
1642 | nbuf -= r; | |
1643 | } | |
1644 | ||
1645 | memcpy(ch->ch_sniff_buf + ch->ch_sniff_in, p, n); | |
1646 | ||
1647 | ch->ch_sniff_in += n; | |
1648 | p += n; | |
1649 | nbuf -= n; | |
1650 | ||
1651 | /* | |
1652 | * Wakeup any thread waiting for data | |
1653 | */ | |
1654 | if (ch->ch_sniff_flags & SNIFF_WAIT_DATA) { | |
1655 | ch->ch_sniff_flags &= ~SNIFF_WAIT_DATA; | |
1656 | wake_up_interruptible(&ch->ch_sniff_wait); | |
1657 | } | |
1658 | } | |
1659 | ||
1660 | /* | |
1661 | * If the user sent us too much data to push into our tmpbuf, | |
1662 | * we need to keep looping around on all the data. | |
1663 | */ | |
1664 | if (too_much_data) { | |
1665 | p = tmpbuf; | |
1666 | tmpbuflen = 0; | |
1667 | } | |
1668 | ||
1669 | } while (too_much_data); | |
1670 | } | |
1671 | ||
a6792a3e MH |
1672 | /*======================================================================= |
1673 | * | |
1674 | * dgap_input - Process received data. | |
1675 | * | |
1676 | * ch - Pointer to channel structure. | |
1677 | * | |
1678 | *=======================================================================*/ | |
1679 | ||
fe0ef8e6 | 1680 | static void dgap_input(struct channel_t *ch) |
a6792a3e MH |
1681 | { |
1682 | struct board_t *bd; | |
1683 | struct bs_t *bs; | |
1684 | struct tty_struct *tp; | |
1685 | struct tty_ldisc *ld; | |
1686 | uint rmask; | |
1687 | uint head; | |
1688 | uint tail; | |
1689 | int data_len; | |
1690 | ulong lock_flags; | |
1691 | ulong lock_flags2; | |
1692 | int flip_len; | |
1693 | int len = 0; | |
1694 | int n = 0; | |
1695 | uchar *buf; | |
1696 | uchar tmpchar; | |
1697 | int s = 0; | |
1698 | ||
1699 | if (!ch || ch->magic != DGAP_CHANNEL_MAGIC) | |
1700 | return; | |
1701 | ||
1702 | tp = ch->ch_tun.un_tty; | |
1703 | ||
1704 | bs = ch->ch_bs; | |
305ec874 | 1705 | if (!bs) |
a6792a3e | 1706 | return; |
a6792a3e MH |
1707 | |
1708 | bd = ch->ch_bd; | |
b115b024 | 1709 | if (!bd || bd->magic != DGAP_BOARD_MAGIC) |
a6792a3e MH |
1710 | return; |
1711 | ||
a6792a3e MH |
1712 | DGAP_LOCK(bd->bd_lock, lock_flags); |
1713 | DGAP_LOCK(ch->ch_lock, lock_flags2); | |
1714 | ||
1715 | /* | |
1716 | * Figure the number of characters in the buffer. | |
1717 | * Exit immediately if none. | |
1718 | */ | |
1719 | ||
1720 | rmask = ch->ch_rsize - 1; | |
1721 | ||
1722 | head = readw(&(bs->rx_head)); | |
1723 | head &= rmask; | |
1724 | tail = readw(&(bs->rx_tail)); | |
1725 | tail &= rmask; | |
1726 | ||
1727 | data_len = (head - tail) & rmask; | |
1728 | ||
1729 | if (data_len == 0) { | |
1730 | writeb(1, &(bs->idata)); | |
1731 | DGAP_UNLOCK(ch->ch_lock, lock_flags2); | |
1732 | DGAP_UNLOCK(bd->bd_lock, lock_flags); | |
a6792a3e MH |
1733 | return; |
1734 | } | |
1735 | ||
1736 | /* | |
1737 | * If the device is not open, or CREAD is off, flush | |
1738 | * input data and return immediately. | |
1739 | */ | |
7d6069d7 MH |
1740 | if ((bd->state != BOARD_READY) || !tp || |
1741 | (tp->magic != TTY_MAGIC) || | |
1742 | !(ch->ch_tun.un_flags & UN_ISOPEN) || | |
1743 | !(tp->termios.c_cflag & CREAD) || | |
a6792a3e MH |
1744 | (ch->ch_tun.un_flags & UN_CLOSING)) { |
1745 | ||
a6792a3e MH |
1746 | writew(head, &(bs->rx_tail)); |
1747 | writeb(1, &(bs->idata)); | |
1748 | DGAP_UNLOCK(ch->ch_lock, lock_flags2); | |
1749 | DGAP_UNLOCK(bd->bd_lock, lock_flags); | |
1750 | return; | |
1751 | } | |
1752 | ||
1753 | /* | |
1754 | * If we are throttled, simply don't read any data. | |
1755 | */ | |
1756 | if (ch->ch_flags & CH_RXBLOCK) { | |
1757 | writeb(1, &(bs->idata)); | |
1758 | DGAP_UNLOCK(ch->ch_lock, lock_flags2); | |
1759 | DGAP_UNLOCK(bd->bd_lock, lock_flags); | |
a6792a3e MH |
1760 | return; |
1761 | } | |
1762 | ||
1763 | /* | |
1764 | * Ignore oruns. | |
1765 | */ | |
1766 | tmpchar = readb(&(bs->orun)); | |
1767 | if (tmpchar) { | |
1768 | ch->ch_err_overrun++; | |
1769 | writeb(0, &(bs->orun)); | |
1770 | } | |
1771 | ||
a6792a3e MH |
1772 | /* Decide how much data we can send into the tty layer */ |
1773 | flip_len = TTY_FLIPBUF_SIZE; | |
1774 | ||
1775 | /* Chop down the length, if needed */ | |
1776 | len = min(data_len, flip_len); | |
1777 | len = min(len, (N_TTY_BUF_SIZE - 1)); | |
1778 | ||
1779 | ld = tty_ldisc_ref(tp); | |
1780 | ||
1781 | #ifdef TTY_DONT_FLIP | |
1782 | /* | |
1783 | * If the DONT_FLIP flag is on, don't flush our buffer, and act | |
1784 | * like the ld doesn't have any space to put the data right now. | |
1785 | */ | |
1786 | if (test_bit(TTY_DONT_FLIP, &tp->flags)) | |
1787 | len = 0; | |
1788 | #endif | |
1789 | ||
1790 | /* | |
1791 | * If we were unable to get a reference to the ld, | |
1792 | * don't flush our buffer, and act like the ld doesn't | |
1793 | * have any space to put the data right now. | |
1794 | */ | |
1795 | if (!ld) { | |
1796 | len = 0; | |
1797 | } else { | |
1798 | /* | |
1799 | * If ld doesn't have a pointer to a receive_buf function, | |
1800 | * flush the data, then act like the ld doesn't have any | |
1801 | * space to put the data right now. | |
1802 | */ | |
1803 | if (!ld->ops->receive_buf) { | |
1804 | writew(head, &(bs->rx_tail)); | |
1805 | len = 0; | |
1806 | } | |
1807 | } | |
1808 | ||
1809 | if (len <= 0) { | |
1810 | writeb(1, &(bs->idata)); | |
1811 | DGAP_UNLOCK(ch->ch_lock, lock_flags2); | |
1812 | DGAP_UNLOCK(bd->bd_lock, lock_flags); | |
a6792a3e MH |
1813 | if (ld) |
1814 | tty_ldisc_deref(ld); | |
1815 | return; | |
1816 | } | |
1817 | ||
1818 | buf = ch->ch_bd->flipbuf; | |
1819 | n = len; | |
1820 | ||
1821 | /* | |
1822 | * n now contains the most amount of data we can copy, | |
1823 | * bounded either by our buffer size or the amount | |
1824 | * of data the card actually has pending... | |
1825 | */ | |
1826 | while (n) { | |
1827 | ||
1828 | s = ((head >= tail) ? head : ch->ch_rsize) - tail; | |
1829 | s = min(s, n); | |
1830 | ||
1831 | if (s <= 0) | |
1832 | break; | |
1833 | ||
1834 | memcpy_fromio(buf, (char *) ch->ch_raddr + tail, s); | |
1835 | dgap_sniff_nowait_nolock(ch, "USER READ", buf, s); | |
1836 | ||
1837 | tail += s; | |
1838 | buf += s; | |
1839 | ||
1840 | n -= s; | |
1841 | /* Flip queue if needed */ | |
1842 | tail &= rmask; | |
1843 | } | |
1844 | ||
1845 | writew(tail, &(bs->rx_tail)); | |
1846 | writeb(1, &(bs->idata)); | |
1847 | ch->ch_rxcount += len; | |
1848 | ||
1849 | /* | |
1850 | * If we are completely raw, we don't need to go through a lot | |
1851 | * of the tty layers that exist. | |
1852 | * In this case, we take the shortest and fastest route we | |
1853 | * can to relay the data to the user. | |
1854 | * | |
1855 | * On the other hand, if we are not raw, we need to go through | |
1856 | * the tty layer, which has its API more well defined. | |
1857 | */ | |
1858 | if (I_PARMRK(tp) || I_BRKINT(tp) || I_INPCK(tp)) { | |
6045b6af MH |
1859 | dgap_parity_scan(ch, ch->ch_bd->flipbuf, |
1860 | ch->ch_bd->flipflagbuf, &len); | |
a6792a3e MH |
1861 | |
1862 | len = tty_buffer_request_room(tp->port, len); | |
1863 | tty_insert_flip_string_flags(tp->port, ch->ch_bd->flipbuf, | |
1864 | ch->ch_bd->flipflagbuf, len); | |
305ec874 | 1865 | } else { |
a6792a3e MH |
1866 | len = tty_buffer_request_room(tp->port, len); |
1867 | tty_insert_flip_string(tp->port, ch->ch_bd->flipbuf, len); | |
1868 | } | |
1869 | ||
1870 | DGAP_UNLOCK(ch->ch_lock, lock_flags2); | |
1871 | DGAP_UNLOCK(bd->bd_lock, lock_flags); | |
1872 | ||
1873 | /* Tell the tty layer its okay to "eat" the data now */ | |
1874 | tty_flip_buffer_push(tp->port); | |
1875 | ||
1876 | if (ld) | |
1877 | tty_ldisc_deref(ld); | |
1878 | ||
a6792a3e MH |
1879 | } |
1880 | ||
a6792a3e MH |
1881 | /************************************************************************ |
1882 | * Determines when CARRIER changes state and takes appropriate | |
1883 | * action. | |
1884 | ************************************************************************/ | |
fe0ef8e6 | 1885 | static void dgap_carrier(struct channel_t *ch) |
a6792a3e MH |
1886 | { |
1887 | struct board_t *bd; | |
1888 | ||
7d6069d7 MH |
1889 | int virt_carrier = 0; |
1890 | int phys_carrier = 0; | |
a6792a3e | 1891 | |
a6792a3e MH |
1892 | if (!ch || ch->magic != DGAP_CHANNEL_MAGIC) |
1893 | return; | |
1894 | ||
1895 | bd = ch->ch_bd; | |
1896 | ||
1897 | if (!bd || bd->magic != DGAP_BOARD_MAGIC) | |
1898 | return; | |
1899 | ||
1900 | /* Make sure altpin is always set correctly */ | |
1901 | if (ch->ch_digi.digi_flags & DIGI_ALTPIN) { | |
1902 | ch->ch_dsr = DM_CD; | |
1903 | ch->ch_cd = DM_DSR; | |
305ec874 | 1904 | } else { |
a6792a3e MH |
1905 | ch->ch_dsr = DM_DSR; |
1906 | ch->ch_cd = DM_CD; | |
1907 | } | |
1908 | ||
31960c16 | 1909 | if (ch->ch_mistat & D_CD(ch)) |
a6792a3e | 1910 | phys_carrier = 1; |
a6792a3e | 1911 | |
305ec874 | 1912 | if (ch->ch_digi.digi_flags & DIGI_FORCEDCD) |
a6792a3e | 1913 | virt_carrier = 1; |
a6792a3e | 1914 | |
305ec874 | 1915 | if (ch->ch_c_cflag & CLOCAL) |
a6792a3e | 1916 | virt_carrier = 1; |
a6792a3e | 1917 | |
a6792a3e MH |
1918 | /* |
1919 | * Test for a VIRTUAL carrier transition to HIGH. | |
1920 | */ | |
1921 | if (((ch->ch_flags & CH_FCAR) == 0) && (virt_carrier == 1)) { | |
1922 | ||
1923 | /* | |
1924 | * When carrier rises, wake any threads waiting | |
1925 | * for carrier in the open routine. | |
1926 | */ | |
1927 | ||
a6792a3e MH |
1928 | if (waitqueue_active(&(ch->ch_flags_wait))) |
1929 | wake_up_interruptible(&ch->ch_flags_wait); | |
1930 | } | |
1931 | ||
1932 | /* | |
1933 | * Test for a PHYSICAL carrier transition to HIGH. | |
1934 | */ | |
1935 | if (((ch->ch_flags & CH_CD) == 0) && (phys_carrier == 1)) { | |
1936 | ||
1937 | /* | |
1938 | * When carrier rises, wake any threads waiting | |
1939 | * for carrier in the open routine. | |
1940 | */ | |
1941 | ||
a6792a3e MH |
1942 | if (waitqueue_active(&(ch->ch_flags_wait))) |
1943 | wake_up_interruptible(&ch->ch_flags_wait); | |
1944 | } | |
1945 | ||
1946 | /* | |
1947 | * Test for a PHYSICAL transition to low, so long as we aren't | |
1948 | * currently ignoring physical transitions (which is what "virtual | |
1949 | * carrier" indicates). | |
1950 | * | |
1951 | * The transition of the virtual carrier to low really doesn't | |
1952 | * matter... it really only means "ignore carrier state", not | |
1953 | * "make pretend that carrier is there". | |
1954 | */ | |
305ec874 MH |
1955 | if ((virt_carrier == 0) && |
1956 | ((ch->ch_flags & CH_CD) != 0) && | |
1957 | (phys_carrier == 0)) { | |
a6792a3e MH |
1958 | |
1959 | /* | |
1960 | * When carrier drops: | |
1961 | * | |
1962 | * Drop carrier on all open units. | |
1963 | * | |
1964 | * Flush queues, waking up any task waiting in the | |
1965 | * line discipline. | |
1966 | * | |
1967 | * Send a hangup to the control terminal. | |
1968 | * | |
1969 | * Enable all select calls. | |
1970 | */ | |
1971 | if (waitqueue_active(&(ch->ch_flags_wait))) | |
1972 | wake_up_interruptible(&ch->ch_flags_wait); | |
1973 | ||
31960c16 | 1974 | if (ch->ch_tun.un_open_count > 0) |
a6792a3e | 1975 | tty_hangup(ch->ch_tun.un_tty); |
a6792a3e | 1976 | |
31960c16 | 1977 | if (ch->ch_pun.un_open_count > 0) |
a6792a3e | 1978 | tty_hangup(ch->ch_pun.un_tty); |
a6792a3e MH |
1979 | } |
1980 | ||
1981 | /* | |
1982 | * Make sure that our cached values reflect the current reality. | |
1983 | */ | |
1984 | if (virt_carrier == 1) | |
1985 | ch->ch_flags |= CH_FCAR; | |
1986 | else | |
1987 | ch->ch_flags &= ~CH_FCAR; | |
1988 | ||
1989 | if (phys_carrier == 1) | |
1990 | ch->ch_flags |= CH_CD; | |
1991 | else | |
1992 | ch->ch_flags &= ~CH_CD; | |
1993 | } | |
1994 | ||
a6792a3e MH |
1995 | /************************************************************************ |
1996 | * | |
1997 | * TTY Entry points and helper functions | |
1998 | * | |
1999 | ************************************************************************/ | |
2000 | ||
2001 | /* | |
2002 | * dgap_tty_open() | |
2003 | * | |
2004 | */ | |
2005 | static int dgap_tty_open(struct tty_struct *tty, struct file *file) | |
2006 | { | |
2007 | struct board_t *brd; | |
2008 | struct channel_t *ch; | |
2009 | struct un_t *un; | |
2010 | struct bs_t *bs; | |
2011 | uint major = 0; | |
2012 | uint minor = 0; | |
2013 | int rc = 0; | |
2014 | ulong lock_flags; | |
2015 | ulong lock_flags2; | |
2016 | u16 head; | |
2017 | ||
2018 | rc = 0; | |
2019 | ||
2020 | major = MAJOR(tty_devnum(tty)); | |
2021 | minor = MINOR(tty_devnum(tty)); | |
2022 | ||
305ec874 | 2023 | if (major > 255) |
a6792a3e | 2024 | return -ENXIO; |
a6792a3e MH |
2025 | |
2026 | /* Get board pointer from our array of majors we have allocated */ | |
2027 | brd = dgap_BoardsByMajor[major]; | |
305ec874 | 2028 | if (!brd) |
a6792a3e | 2029 | return -ENXIO; |
a6792a3e MH |
2030 | |
2031 | /* | |
2032 | * If board is not yet up to a state of READY, go to | |
2033 | * sleep waiting for it to happen or they cancel the open. | |
2034 | */ | |
2035 | rc = wait_event_interruptible(brd->state_wait, | |
2036 | (brd->state & BOARD_READY)); | |
2037 | ||
305ec874 | 2038 | if (rc) |
a6792a3e | 2039 | return rc; |
a6792a3e MH |
2040 | |
2041 | DGAP_LOCK(brd->bd_lock, lock_flags); | |
2042 | ||
2043 | /* The wait above should guarantee this cannot happen */ | |
2044 | if (brd->state != BOARD_READY) { | |
2045 | DGAP_UNLOCK(brd->bd_lock, lock_flags); | |
2046 | return -ENXIO; | |
2047 | } | |
2048 | ||
2049 | /* If opened device is greater than our number of ports, bail. */ | |
2050 | if (MINOR(tty_devnum(tty)) > brd->nasync) { | |
2051 | DGAP_UNLOCK(brd->bd_lock, lock_flags); | |
2052 | return -ENXIO; | |
2053 | } | |
2054 | ||
2055 | ch = brd->channels[minor]; | |
2056 | if (!ch) { | |
2057 | DGAP_UNLOCK(brd->bd_lock, lock_flags); | |
2058 | return -ENXIO; | |
2059 | } | |
2060 | ||
2061 | /* Grab channel lock */ | |
2062 | DGAP_LOCK(ch->ch_lock, lock_flags2); | |
2063 | ||
2064 | /* Figure out our type */ | |
2065 | if (major == brd->dgap_Serial_Major) { | |
2066 | un = &brd->channels[minor]->ch_tun; | |
2067 | un->un_type = DGAP_SERIAL; | |
305ec874 | 2068 | } else if (major == brd->dgap_TransparentPrint_Major) { |
a6792a3e MH |
2069 | un = &brd->channels[minor]->ch_pun; |
2070 | un->un_type = DGAP_PRINT; | |
305ec874 | 2071 | } else { |
a6792a3e MH |
2072 | DGAP_UNLOCK(ch->ch_lock, lock_flags2); |
2073 | DGAP_UNLOCK(brd->bd_lock, lock_flags); | |
a6792a3e MH |
2074 | return -ENXIO; |
2075 | } | |
2076 | ||
2077 | /* Store our unit into driver_data, so we always have it available. */ | |
2078 | tty->driver_data = un; | |
2079 | ||
a6792a3e MH |
2080 | /* |
2081 | * Error if channel info pointer is NULL. | |
2082 | */ | |
2083 | bs = ch->ch_bs; | |
2084 | if (!bs) { | |
2085 | DGAP_UNLOCK(ch->ch_lock, lock_flags2); | |
2086 | DGAP_UNLOCK(brd->bd_lock, lock_flags); | |
a6792a3e | 2087 | return -ENXIO; |
7d6069d7 | 2088 | } |
a6792a3e | 2089 | |
a6792a3e MH |
2090 | /* |
2091 | * Initialize tty's | |
2092 | */ | |
2093 | if (!(un->un_flags & UN_ISOPEN)) { | |
2094 | /* Store important variables. */ | |
2095 | un->un_tty = tty; | |
2096 | ||
2097 | /* Maybe do something here to the TTY struct as well? */ | |
2098 | } | |
2099 | ||
2100 | /* | |
2101 | * Initialize if neither terminal or printer is open. | |
2102 | */ | |
2103 | if (!((ch->ch_tun.un_flags | ch->ch_pun.un_flags) & UN_ISOPEN)) { | |
2104 | ||
a6792a3e MH |
2105 | ch->ch_mforce = 0; |
2106 | ch->ch_mval = 0; | |
2107 | ||
2108 | /* | |
2109 | * Flush input queue. | |
2110 | */ | |
2111 | head = readw(&(bs->rx_head)); | |
2112 | writew(head, &(bs->rx_tail)); | |
2113 | ||
2114 | ch->ch_flags = 0; | |
2115 | ch->pscan_state = 0; | |
2116 | ch->pscan_savechar = 0; | |
2117 | ||
2118 | ch->ch_c_cflag = tty->termios.c_cflag; | |
2119 | ch->ch_c_iflag = tty->termios.c_iflag; | |
2120 | ch->ch_c_oflag = tty->termios.c_oflag; | |
2121 | ch->ch_c_lflag = tty->termios.c_lflag; | |
2122 | ch->ch_startc = tty->termios.c_cc[VSTART]; | |
2123 | ch->ch_stopc = tty->termios.c_cc[VSTOP]; | |
2124 | ||
2125 | /* TODO: flush our TTY struct here? */ | |
2126 | } | |
2127 | ||
2128 | dgap_carrier(ch); | |
2129 | /* | |
2130 | * Run param in case we changed anything | |
2131 | */ | |
2132 | dgap_param(tty); | |
2133 | ||
2134 | /* | |
2135 | * follow protocol for opening port | |
2136 | */ | |
2137 | ||
2138 | DGAP_UNLOCK(ch->ch_lock, lock_flags2); | |
2139 | DGAP_UNLOCK(brd->bd_lock, lock_flags); | |
2140 | ||
2141 | rc = dgap_block_til_ready(tty, file, ch); | |
2142 | ||
305ec874 | 2143 | if (!un->un_tty) |
a6792a3e | 2144 | return -ENODEV; |
a6792a3e | 2145 | |
a6792a3e MH |
2146 | /* No going back now, increment our unit and channel counters */ |
2147 | DGAP_LOCK(ch->ch_lock, lock_flags); | |
2148 | ch->ch_open_count++; | |
2149 | un->un_open_count++; | |
2150 | un->un_flags |= (UN_ISOPEN); | |
2151 | DGAP_UNLOCK(ch->ch_lock, lock_flags); | |
2152 | ||
cf42c34d | 2153 | return rc; |
a6792a3e MH |
2154 | } |
2155 | ||
a6792a3e MH |
2156 | /* |
2157 | * dgap_block_til_ready() | |
2158 | * | |
2159 | * Wait for DCD, if needed. | |
2160 | */ | |
6045b6af MH |
2161 | static int dgap_block_til_ready(struct tty_struct *tty, struct file *file, |
2162 | struct channel_t *ch) | |
a6792a3e MH |
2163 | { |
2164 | int retval = 0; | |
2165 | struct un_t *un = NULL; | |
2166 | ulong lock_flags; | |
2167 | uint old_flags = 0; | |
2168 | int sleep_on_un_flags = 0; | |
2169 | ||
305ec874 MH |
2170 | if (!tty || tty->magic != TTY_MAGIC || !file || !ch || |
2171 | ch->magic != DGAP_CHANNEL_MAGIC) | |
cf42c34d | 2172 | return -ENXIO; |
a6792a3e MH |
2173 | |
2174 | un = tty->driver_data; | |
305ec874 | 2175 | if (!un || un->magic != DGAP_UNIT_MAGIC) |
cf42c34d | 2176 | return -ENXIO; |
a6792a3e | 2177 | |
a6792a3e MH |
2178 | DGAP_LOCK(ch->ch_lock, lock_flags); |
2179 | ||
2180 | ch->ch_wopen++; | |
2181 | ||
2182 | /* Loop forever */ | |
2183 | while (1) { | |
2184 | ||
2185 | sleep_on_un_flags = 0; | |
2186 | ||
2187 | /* | |
6045b6af MH |
2188 | * If board has failed somehow during our sleep, |
2189 | * bail with error. | |
a6792a3e MH |
2190 | */ |
2191 | if (ch->ch_bd->state == BOARD_FAILED) { | |
2192 | retval = -ENXIO; | |
2193 | break; | |
2194 | } | |
2195 | ||
2196 | /* If tty was hung up, break out of loop and set error. */ | |
2197 | if (tty_hung_up_p(file)) { | |
2198 | retval = -EAGAIN; | |
2199 | break; | |
2200 | } | |
2201 | ||
2202 | /* | |
2203 | * If either unit is in the middle of the fragile part of close, | |
2204 | * we just cannot touch the channel safely. | |
2205 | * Go back to sleep, knowing that when the channel can be | |
2206 | * touched safely, the close routine will signal the | |
2207 | * ch_wait_flags to wake us back up. | |
2208 | */ | |
6045b6af MH |
2209 | if (!((ch->ch_tun.un_flags | ch->ch_pun.un_flags) & |
2210 | UN_CLOSING)) { | |
a6792a3e MH |
2211 | |
2212 | /* | |
2213 | * Our conditions to leave cleanly and happily: | |
2214 | * 1) NONBLOCKING on the tty is set. | |
2215 | * 2) CLOCAL is set. | |
2216 | * 3) DCD (fake or real) is active. | |
2217 | */ | |
2218 | ||
305ec874 | 2219 | if (file->f_flags & O_NONBLOCK) |
a6792a3e | 2220 | break; |
a6792a3e | 2221 | |
305ec874 | 2222 | if (tty->flags & (1 << TTY_IO_ERROR)) |
a6792a3e | 2223 | break; |
a6792a3e | 2224 | |
31960c16 | 2225 | if (ch->ch_flags & CH_CD) |
a6792a3e | 2226 | break; |
a6792a3e | 2227 | |
31960c16 | 2228 | if (ch->ch_flags & CH_FCAR) |
a6792a3e | 2229 | break; |
305ec874 | 2230 | } else { |
a6792a3e MH |
2231 | sleep_on_un_flags = 1; |
2232 | } | |
2233 | ||
2234 | /* | |
2235 | * If there is a signal pending, the user probably | |
2236 | * interrupted (ctrl-c) us. | |
2237 | * Leave loop with error set. | |
2238 | */ | |
2239 | if (signal_pending(current)) { | |
a6792a3e MH |
2240 | retval = -ERESTARTSYS; |
2241 | break; | |
2242 | } | |
2243 | ||
a6792a3e MH |
2244 | /* |
2245 | * Store the flags before we let go of channel lock | |
2246 | */ | |
2247 | if (sleep_on_un_flags) | |
2248 | old_flags = ch->ch_tun.un_flags | ch->ch_pun.un_flags; | |
2249 | else | |
2250 | old_flags = ch->ch_flags; | |
2251 | ||
2252 | /* | |
2253 | * Let go of channel lock before calling schedule. | |
2254 | * Our poller will get any FEP events and wake us up when DCD | |
2255 | * eventually goes active. | |
2256 | */ | |
2257 | ||
2258 | DGAP_UNLOCK(ch->ch_lock, lock_flags); | |
2259 | ||
a6792a3e | 2260 | /* |
6045b6af MH |
2261 | * Wait for something in the flags to change |
2262 | * from the current value. | |
a6792a3e MH |
2263 | */ |
2264 | if (sleep_on_un_flags) { | |
2265 | retval = wait_event_interruptible(un->un_flags_wait, | |
6045b6af MH |
2266 | (old_flags != (ch->ch_tun.un_flags | |
2267 | ch->ch_pun.un_flags))); | |
305ec874 | 2268 | } else { |
a6792a3e MH |
2269 | retval = wait_event_interruptible(ch->ch_flags_wait, |
2270 | (old_flags != ch->ch_flags)); | |
2271 | } | |
2272 | ||
a6792a3e MH |
2273 | /* |
2274 | * We got woken up for some reason. | |
2275 | * Before looping around, grab our channel lock. | |
2276 | */ | |
2277 | DGAP_LOCK(ch->ch_lock, lock_flags); | |
2278 | } | |
2279 | ||
2280 | ch->ch_wopen--; | |
2281 | ||
2282 | DGAP_UNLOCK(ch->ch_lock, lock_flags); | |
2283 | ||
31960c16 | 2284 | if (retval) |
cf42c34d | 2285 | return retval; |
a6792a3e | 2286 | |
cf42c34d | 2287 | return 0; |
a6792a3e MH |
2288 | } |
2289 | ||
a6792a3e MH |
2290 | /* |
2291 | * dgap_tty_hangup() | |
2292 | * | |
2293 | * Hangup the port. Like a close, but don't wait for output to drain. | |
2294 | */ | |
2295 | static void dgap_tty_hangup(struct tty_struct *tty) | |
2296 | { | |
2297 | struct board_t *bd; | |
2298 | struct channel_t *ch; | |
2299 | struct un_t *un; | |
2300 | ||
2301 | if (!tty || tty->magic != TTY_MAGIC) | |
2302 | return; | |
2303 | ||
2304 | un = tty->driver_data; | |
2305 | if (!un || un->magic != DGAP_UNIT_MAGIC) | |
2306 | return; | |
2307 | ||
2308 | ch = un->un_ch; | |
2309 | if (!ch || ch->magic != DGAP_CHANNEL_MAGIC) | |
2310 | return; | |
2311 | ||
2312 | bd = ch->ch_bd; | |
2313 | if (!bd || bd->magic != DGAP_BOARD_MAGIC) | |
2314 | return; | |
2315 | ||
a6792a3e MH |
2316 | /* flush the transmit queues */ |
2317 | dgap_tty_flush_buffer(tty); | |
2318 | ||
a6792a3e MH |
2319 | } |
2320 | ||
a6792a3e MH |
2321 | /* |
2322 | * dgap_tty_close() | |
2323 | * | |
2324 | */ | |
2325 | static void dgap_tty_close(struct tty_struct *tty, struct file *file) | |
2326 | { | |
2327 | struct ktermios *ts; | |
2328 | struct board_t *bd; | |
2329 | struct channel_t *ch; | |
2330 | struct un_t *un; | |
2331 | ulong lock_flags; | |
2332 | int rc = 0; | |
2333 | ||
2334 | if (!tty || tty->magic != TTY_MAGIC) | |
2335 | return; | |
2336 | ||
2337 | un = tty->driver_data; | |
2338 | if (!un || un->magic != DGAP_UNIT_MAGIC) | |
2339 | return; | |
2340 | ||
2341 | ch = un->un_ch; | |
2342 | if (!ch || ch->magic != DGAP_CHANNEL_MAGIC) | |
2343 | return; | |
2344 | ||
2345 | bd = ch->ch_bd; | |
2346 | if (!bd || bd->magic != DGAP_BOARD_MAGIC) | |
2347 | return; | |
2348 | ||
2349 | ts = &tty->termios; | |
2350 | ||
a6792a3e MH |
2351 | DGAP_LOCK(ch->ch_lock, lock_flags); |
2352 | ||
2353 | /* | |
2354 | * Determine if this is the last close or not - and if we agree about | |
2355 | * which type of close it is with the Line Discipline | |
2356 | */ | |
82ed9774 | 2357 | if ((tty->count == 1) && (un->un_open_count != 1)) { |
a6792a3e MH |
2358 | /* |
2359 | * Uh, oh. tty->count is 1, which means that the tty | |
2360 | * structure will be freed. un_open_count should always | |
2361 | * be one in these conditions. If it's greater than | |
2362 | * one, we've got real problems, since it means the | |
2363 | * serial port won't be shutdown. | |
2364 | */ | |
a6792a3e | 2365 | un->un_open_count = 1; |
82ed9774 | 2366 | } |
a6792a3e | 2367 | |
31960c16 | 2368 | if (--un->un_open_count < 0) |
a6792a3e | 2369 | un->un_open_count = 0; |
a6792a3e MH |
2370 | |
2371 | ch->ch_open_count--; | |
2372 | ||
2373 | if (ch->ch_open_count && un->un_open_count) { | |
a6792a3e | 2374 | DGAP_UNLOCK(ch->ch_lock, lock_flags); |
7d6069d7 MH |
2375 | return; |
2376 | } | |
a6792a3e MH |
2377 | |
2378 | /* OK, its the last close on the unit */ | |
a6792a3e MH |
2379 | |
2380 | un->un_flags |= UN_CLOSING; | |
2381 | ||
2382 | tty->closing = 1; | |
2383 | ||
2384 | /* | |
2385 | * Only officially close channel if count is 0 and | |
7d6069d7 | 2386 | * DIGI_PRINTER bit is not set. |
a6792a3e | 2387 | */ |
6045b6af MH |
2388 | if ((ch->ch_open_count == 0) && |
2389 | !(ch->ch_digi.digi_flags & DIGI_PRINTER)) { | |
a6792a3e MH |
2390 | |
2391 | ch->ch_flags &= ~(CH_RXBLOCK); | |
2392 | ||
2393 | DGAP_UNLOCK(ch->ch_lock, lock_flags); | |
2394 | ||
2395 | /* wait for output to drain */ | |
2396 | /* This will also return if we take an interrupt */ | |
2397 | ||
a6792a3e | 2398 | rc = dgap_wait_for_drain(tty); |
a6792a3e MH |
2399 | |
2400 | dgap_tty_flush_buffer(tty); | |
2401 | tty_ldisc_flush(tty); | |
2402 | ||
2403 | DGAP_LOCK(ch->ch_lock, lock_flags); | |
2404 | ||
2405 | tty->closing = 0; | |
2406 | ||
2407 | /* | |
2408 | * If we have HUPCL set, lower DTR and RTS | |
2409 | */ | |
b115b024 | 2410 | if (ch->ch_c_cflag & HUPCL) { |
a6792a3e | 2411 | ch->ch_mostat &= ~(D_RTS(ch)|D_DTR(ch)); |
b115b024 | 2412 | dgap_cmdb(ch, SMODEM, 0, D_DTR(ch)|D_RTS(ch), 0); |
a6792a3e MH |
2413 | |
2414 | /* | |
2415 | * Go to sleep to ensure RTS/DTR | |
2416 | * have been dropped for modems to see it. | |
2417 | */ | |
2418 | if (ch->ch_close_delay) { | |
a6792a3e MH |
2419 | DGAP_UNLOCK(ch->ch_lock, lock_flags); |
2420 | dgap_ms_sleep(ch->ch_close_delay); | |
2421 | DGAP_LOCK(ch->ch_lock, lock_flags); | |
a6792a3e MH |
2422 | } |
2423 | } | |
2424 | ||
2425 | ch->pscan_state = 0; | |
2426 | ch->pscan_savechar = 0; | |
2427 | ch->ch_baud_info = 0; | |
2428 | ||
2429 | } | |
2430 | ||
2431 | /* | |
2432 | * turn off print device when closing print device. | |
2433 | */ | |
b115b024 | 2434 | if ((un->un_type == DGAP_PRINT) && (ch->ch_flags & CH_PRON)) { |
a6792a3e MH |
2435 | dgap_wmove(ch, ch->ch_digi.digi_offstr, |
2436 | (int) ch->ch_digi.digi_offlen); | |
2437 | ch->ch_flags &= ~CH_PRON; | |
2438 | } | |
2439 | ||
2440 | un->un_tty = NULL; | |
2441 | un->un_flags &= ~(UN_ISOPEN | UN_CLOSING); | |
2442 | tty->driver_data = NULL; | |
2443 | ||
a6792a3e MH |
2444 | wake_up_interruptible(&ch->ch_flags_wait); |
2445 | wake_up_interruptible(&un->un_flags_wait); | |
2446 | ||
2447 | DGAP_UNLOCK(ch->ch_lock, lock_flags); | |
a6792a3e MH |
2448 | } |
2449 | ||
a6792a3e MH |
2450 | /* |
2451 | * dgap_tty_chars_in_buffer() | |
2452 | * | |
2453 | * Return number of characters that have not been transmitted yet. | |
2454 | * | |
2455 | * This routine is used by the line discipline to determine if there | |
2456 | * is data waiting to be transmitted/drained/flushed or not. | |
2457 | */ | |
2458 | static int dgap_tty_chars_in_buffer(struct tty_struct *tty) | |
2459 | { | |
2460 | struct board_t *bd = NULL; | |
2461 | struct channel_t *ch = NULL; | |
2462 | struct un_t *un = NULL; | |
2463 | struct bs_t *bs = NULL; | |
2464 | uchar tbusy; | |
2465 | uint chars = 0; | |
2466 | u16 thead, ttail, tmask, chead, ctail; | |
2467 | ulong lock_flags = 0; | |
2468 | ulong lock_flags2 = 0; | |
2469 | ||
2470 | if (tty == NULL) | |
cf42c34d | 2471 | return 0; |
a6792a3e MH |
2472 | |
2473 | un = tty->driver_data; | |
2474 | if (!un || un->magic != DGAP_UNIT_MAGIC) | |
cf42c34d | 2475 | return 0; |
a6792a3e MH |
2476 | |
2477 | ch = un->un_ch; | |
2478 | if (!ch || ch->magic != DGAP_CHANNEL_MAGIC) | |
cf42c34d | 2479 | return 0; |
a6792a3e MH |
2480 | |
2481 | bd = ch->ch_bd; | |
2482 | if (!bd || bd->magic != DGAP_BOARD_MAGIC) | |
cf42c34d | 2483 | return 0; |
a6792a3e | 2484 | |
7d6069d7 | 2485 | bs = ch->ch_bs; |
a6792a3e | 2486 | if (!bs) |
cf42c34d | 2487 | return 0; |
a6792a3e MH |
2488 | |
2489 | DGAP_LOCK(bd->bd_lock, lock_flags); | |
2490 | DGAP_LOCK(ch->ch_lock, lock_flags2); | |
2491 | ||
2492 | tmask = (ch->ch_tsize - 1); | |
2493 | ||
2494 | /* Get Transmit queue pointers */ | |
2495 | thead = readw(&(bs->tx_head)) & tmask; | |
2496 | ttail = readw(&(bs->tx_tail)) & tmask; | |
2497 | ||
2498 | /* Get tbusy flag */ | |
2499 | tbusy = readb(&(bs->tbusy)); | |
2500 | ||
2501 | /* Get Command queue pointers */ | |
2502 | chead = readw(&(ch->ch_cm->cm_head)); | |
2503 | ctail = readw(&(ch->ch_cm->cm_tail)); | |
2504 | ||
2505 | DGAP_UNLOCK(ch->ch_lock, lock_flags2); | |
2506 | DGAP_UNLOCK(bd->bd_lock, lock_flags); | |
2507 | ||
2508 | /* | |
2509 | * The only way we know for sure if there is no pending | |
2510 | * data left to be transferred, is if: | |
2511 | * 1) Transmit head and tail are equal (empty). | |
2512 | * 2) Command queue head and tail are equal (empty). | |
2513 | * 3) The "TBUSY" flag is 0. (Transmitter not busy). | |
7d6069d7 | 2514 | */ |
a6792a3e MH |
2515 | |
2516 | if ((ttail == thead) && (tbusy == 0) && (chead == ctail)) { | |
2517 | chars = 0; | |
305ec874 | 2518 | } else { |
a6792a3e MH |
2519 | if (thead >= ttail) |
2520 | chars = thead - ttail; | |
2521 | else | |
2522 | chars = thead - ttail + ch->ch_tsize; | |
2523 | /* | |
2524 | * Fudge factor here. | |
2525 | * If chars is zero, we know that the command queue had | |
2526 | * something in it or tbusy was set. Because we cannot | |
2527 | * be sure if there is still some data to be transmitted, | |
2528 | * lets lie, and tell ld we have 1 byte left. | |
2529 | */ | |
2530 | if (chars == 0) { | |
2531 | /* | |
2532 | * If TBUSY is still set, and our tx buffers are empty, | |
2533 | * force the firmware to send me another wakeup after | |
2534 | * TBUSY has been cleared. | |
2535 | */ | |
2536 | if (tbusy != 0) { | |
2537 | DGAP_LOCK(ch->ch_lock, lock_flags); | |
2538 | un->un_flags |= UN_EMPTY; | |
2539 | writeb(1, &(bs->iempty)); | |
2540 | DGAP_UNLOCK(ch->ch_lock, lock_flags); | |
2541 | } | |
2542 | chars = 1; | |
2543 | } | |
2544 | } | |
2545 | ||
cf42c34d | 2546 | return chars; |
a6792a3e MH |
2547 | } |
2548 | ||
a6792a3e MH |
2549 | static int dgap_wait_for_drain(struct tty_struct *tty) |
2550 | { | |
2551 | struct channel_t *ch; | |
2552 | struct un_t *un; | |
2553 | struct bs_t *bs; | |
2554 | int ret = -EIO; | |
2555 | uint count = 1; | |
2556 | ulong lock_flags = 0; | |
2557 | ||
2558 | if (!tty || tty->magic != TTY_MAGIC) | |
2559 | return ret; | |
2560 | ||
2561 | un = tty->driver_data; | |
2562 | if (!un || un->magic != DGAP_UNIT_MAGIC) | |
2563 | return ret; | |
2564 | ||
2565 | ch = un->un_ch; | |
2566 | if (!ch || ch->magic != DGAP_CHANNEL_MAGIC) | |
2567 | return ret; | |
2568 | ||
7d6069d7 | 2569 | bs = ch->ch_bs; |
a6792a3e MH |
2570 | if (!bs) |
2571 | return ret; | |
2572 | ||
2573 | ret = 0; | |
2574 | ||
a6792a3e MH |
2575 | /* Loop until data is drained */ |
2576 | while (count != 0) { | |
2577 | ||
2578 | count = dgap_tty_chars_in_buffer(tty); | |
2579 | ||
2580 | if (count == 0) | |
2581 | break; | |
2582 | ||
2583 | /* Set flag waiting for drain */ | |
2584 | DGAP_LOCK(ch->ch_lock, lock_flags); | |
2585 | un->un_flags |= UN_EMPTY; | |
2586 | writeb(1, &(bs->iempty)); | |
2587 | DGAP_UNLOCK(ch->ch_lock, lock_flags); | |
2588 | ||
2589 | /* Go to sleep till we get woken up */ | |
6045b6af MH |
2590 | ret = wait_event_interruptible(un->un_flags_wait, |
2591 | ((un->un_flags & UN_EMPTY) == 0)); | |
a6792a3e | 2592 | /* If ret is non-zero, user ctrl-c'ed us */ |
305ec874 | 2593 | if (ret) |
a6792a3e | 2594 | break; |
a6792a3e MH |
2595 | } |
2596 | ||
2597 | DGAP_LOCK(ch->ch_lock, lock_flags); | |
2598 | un->un_flags &= ~(UN_EMPTY); | |
2599 | DGAP_UNLOCK(ch->ch_lock, lock_flags); | |
2600 | ||
cf42c34d | 2601 | return ret; |
a6792a3e MH |
2602 | } |
2603 | ||
a6792a3e MH |
2604 | /* |
2605 | * dgap_maxcps_room | |
2606 | * | |
2607 | * Reduces bytes_available to the max number of characters | |
2608 | * that can be sent currently given the maxcps value, and | |
2609 | * returns the new bytes_available. This only affects printer | |
2610 | * output. | |
2611 | */ | |
2612 | static int dgap_maxcps_room(struct tty_struct *tty, int bytes_available) | |
2613 | { | |
2614 | struct channel_t *ch = NULL; | |
2615 | struct un_t *un = NULL; | |
2616 | ||
2617 | if (tty == NULL) | |
cf42c34d | 2618 | return bytes_available; |
a6792a3e MH |
2619 | |
2620 | un = tty->driver_data; | |
2621 | if (!un || un->magic != DGAP_UNIT_MAGIC) | |
cf42c34d | 2622 | return bytes_available; |
a6792a3e MH |
2623 | |
2624 | ch = un->un_ch; | |
2625 | if (!ch || ch->magic != DGAP_CHANNEL_MAGIC) | |
cf42c34d | 2626 | return bytes_available; |
a6792a3e MH |
2627 | |
2628 | /* | |
2629 | * If its not the Transparent print device, return | |
2630 | * the full data amount. | |
2631 | */ | |
2632 | if (un->un_type != DGAP_PRINT) | |
cf42c34d | 2633 | return bytes_available; |
a6792a3e | 2634 | |
b115b024 | 2635 | if (ch->ch_digi.digi_maxcps > 0 && ch->ch_digi.digi_bufsize > 0) { |
a6792a3e MH |
2636 | int cps_limit = 0; |
2637 | unsigned long current_time = jiffies; | |
2638 | unsigned long buffer_time = current_time + | |
6045b6af MH |
2639 | (HZ * ch->ch_digi.digi_bufsize) / |
2640 | ch->ch_digi.digi_maxcps; | |
a6792a3e MH |
2641 | |
2642 | if (ch->ch_cpstime < current_time) { | |
2643 | /* buffer is empty */ | |
8a2c9c44 | 2644 | ch->ch_cpstime = current_time; /* reset ch_cpstime */ |
a6792a3e | 2645 | cps_limit = ch->ch_digi.digi_bufsize; |
305ec874 | 2646 | } else if (ch->ch_cpstime < buffer_time) { |
a6792a3e | 2647 | /* still room in the buffer */ |
6045b6af MH |
2648 | cps_limit = ((buffer_time - ch->ch_cpstime) * |
2649 | ch->ch_digi.digi_maxcps) / HZ; | |
305ec874 | 2650 | } else { |
a6792a3e MH |
2651 | /* no room in the buffer */ |
2652 | cps_limit = 0; | |
2653 | } | |
2654 | ||
2655 | bytes_available = min(cps_limit, bytes_available); | |
2656 | } | |
2657 | ||
cf42c34d | 2658 | return bytes_available; |
a6792a3e MH |
2659 | } |
2660 | ||
a6792a3e MH |
2661 | static inline void dgap_set_firmware_event(struct un_t *un, unsigned int event) |
2662 | { | |
2663 | struct channel_t *ch = NULL; | |
2664 | struct bs_t *bs = NULL; | |
2665 | ||
2666 | if (!un || un->magic != DGAP_UNIT_MAGIC) | |
2667 | return; | |
2668 | ch = un->un_ch; | |
2669 | if (!ch || ch->magic != DGAP_CHANNEL_MAGIC) | |
2670 | return; | |
7d6069d7 | 2671 | bs = ch->ch_bs; |
a6792a3e MH |
2672 | if (!bs) |
2673 | return; | |
2674 | ||
2675 | if ((event & UN_LOW) != 0) { | |
2676 | if ((un->un_flags & UN_LOW) == 0) { | |
2677 | un->un_flags |= UN_LOW; | |
2678 | writeb(1, &(bs->ilow)); | |
2679 | } | |
2680 | } | |
2681 | if ((event & UN_LOW) != 0) { | |
2682 | if ((un->un_flags & UN_EMPTY) == 0) { | |
2683 | un->un_flags |= UN_EMPTY; | |
2684 | writeb(1, &(bs->iempty)); | |
2685 | } | |
2686 | } | |
2687 | } | |
2688 | ||
a6792a3e MH |
2689 | /* |
2690 | * dgap_tty_write_room() | |
2691 | * | |
2692 | * Return space available in Tx buffer | |
2693 | */ | |
2694 | static int dgap_tty_write_room(struct tty_struct *tty) | |
2695 | { | |
2696 | struct channel_t *ch = NULL; | |
2697 | struct un_t *un = NULL; | |
2698 | struct bs_t *bs = NULL; | |
2699 | u16 head, tail, tmask; | |
2700 | int ret = 0; | |
2701 | ulong lock_flags = 0; | |
2702 | ||
61260228 | 2703 | if (!tty) |
cf42c34d | 2704 | return 0; |
a6792a3e MH |
2705 | |
2706 | un = tty->driver_data; | |
2707 | if (!un || un->magic != DGAP_UNIT_MAGIC) | |
cf42c34d | 2708 | return 0; |
a6792a3e MH |
2709 | |
2710 | ch = un->un_ch; | |
2711 | if (!ch || ch->magic != DGAP_CHANNEL_MAGIC) | |
cf42c34d | 2712 | return 0; |
a6792a3e | 2713 | |
7d6069d7 | 2714 | bs = ch->ch_bs; |
a6792a3e | 2715 | if (!bs) |
cf42c34d | 2716 | return 0; |
a6792a3e MH |
2717 | |
2718 | DGAP_LOCK(ch->ch_lock, lock_flags); | |
2719 | ||
2720 | tmask = ch->ch_tsize - 1; | |
2721 | head = readw(&(bs->tx_head)) & tmask; | |
2722 | tail = readw(&(bs->tx_tail)) & tmask; | |
2723 | ||
7d6069d7 MH |
2724 | ret = tail - head - 1; |
2725 | if (ret < 0) | |
2726 | ret += ch->ch_tsize; | |
a6792a3e MH |
2727 | |
2728 | /* Limit printer to maxcps */ | |
2729 | ret = dgap_maxcps_room(tty, ret); | |
2730 | ||
2731 | /* | |
2732 | * If we are printer device, leave space for | |
2733 | * possibly both the on and off strings. | |
2734 | */ | |
2735 | if (un->un_type == DGAP_PRINT) { | |
2736 | if (!(ch->ch_flags & CH_PRON)) | |
2737 | ret -= ch->ch_digi.digi_onlen; | |
2738 | ret -= ch->ch_digi.digi_offlen; | |
305ec874 | 2739 | } else { |
a6792a3e MH |
2740 | if (ch->ch_flags & CH_PRON) |
2741 | ret -= ch->ch_digi.digi_offlen; | |
2742 | } | |
2743 | ||
2744 | if (ret < 0) | |
2745 | ret = 0; | |
2746 | ||
2747 | /* | |
2748 | * Schedule FEP to wake us up if needed. | |
2749 | * | |
2750 | * TODO: This might be overkill... | |
2751 | * Do we really need to schedule callbacks from the FEP | |
2752 | * in every case? Can we get smarter based on ret? | |
2753 | */ | |
2754 | dgap_set_firmware_event(un, UN_LOW | UN_EMPTY); | |
2755 | DGAP_UNLOCK(ch->ch_lock, lock_flags); | |
2756 | ||
cf42c34d | 2757 | return ret; |
a6792a3e MH |
2758 | } |
2759 | ||
a6792a3e MH |
2760 | /* |
2761 | * dgap_tty_put_char() | |
2762 | * | |
2763 | * Put a character into ch->ch_buf | |
2764 | * | |
2765 | * - used by the line discipline for OPOST processing | |
2766 | */ | |
2767 | static int dgap_tty_put_char(struct tty_struct *tty, unsigned char c) | |
2768 | { | |
2769 | /* | |
2770 | * Simply call tty_write. | |
2771 | */ | |
a6792a3e MH |
2772 | dgap_tty_write(tty, &c, 1); |
2773 | return 1; | |
2774 | } | |
2775 | ||
a6792a3e MH |
2776 | /* |
2777 | * dgap_tty_write() | |
2778 | * | |
2779 | * Take data from the user or kernel and send it out to the FEP. | |
2780 | * In here exists all the Transparent Print magic as well. | |
2781 | */ | |
8a2c9c44 MH |
2782 | static int dgap_tty_write(struct tty_struct *tty, const unsigned char *buf, |
2783 | int count) | |
a6792a3e MH |
2784 | { |
2785 | struct channel_t *ch = NULL; | |
2786 | struct un_t *un = NULL; | |
2787 | struct bs_t *bs = NULL; | |
2788 | char *vaddr = NULL; | |
2789 | u16 head, tail, tmask, remain; | |
2790 | int bufcount = 0, n = 0; | |
2791 | int orig_count = 0; | |
2792 | ulong lock_flags; | |
a6792a3e | 2793 | |
61260228 | 2794 | if (!tty) |
cf42c34d | 2795 | return 0; |
a6792a3e MH |
2796 | |
2797 | un = tty->driver_data; | |
2798 | if (!un || un->magic != DGAP_UNIT_MAGIC) | |
cf42c34d | 2799 | return 0; |
a6792a3e MH |
2800 | |
2801 | ch = un->un_ch; | |
2802 | if (!ch || ch->magic != DGAP_CHANNEL_MAGIC) | |
cf42c34d | 2803 | return 0; |
a6792a3e | 2804 | |
7d6069d7 | 2805 | bs = ch->ch_bs; |
a6792a3e | 2806 | if (!bs) |
cf42c34d | 2807 | return 0; |
a6792a3e MH |
2808 | |
2809 | if (!count) | |
cf42c34d | 2810 | return 0; |
a6792a3e | 2811 | |
a6792a3e MH |
2812 | /* |
2813 | * Store original amount of characters passed in. | |
2814 | * This helps to figure out if we should ask the FEP | |
2815 | * to send us an event when it has more space available. | |
2816 | */ | |
2817 | orig_count = count; | |
2818 | ||
2819 | DGAP_LOCK(ch->ch_lock, lock_flags); | |
2820 | ||
2821 | /* Get our space available for the channel from the board */ | |
2822 | tmask = ch->ch_tsize - 1; | |
2823 | head = readw(&(bs->tx_head)) & tmask; | |
2824 | tail = readw(&(bs->tx_tail)) & tmask; | |
2825 | ||
d1c3c6f5 MH |
2826 | bufcount = tail - head - 1; |
2827 | if (bufcount < 0) | |
a6792a3e MH |
2828 | bufcount += ch->ch_tsize; |
2829 | ||
a6792a3e MH |
2830 | /* |
2831 | * Limit printer output to maxcps overall, with bursts allowed | |
2832 | * up to bufsize characters. | |
2833 | */ | |
2834 | bufcount = dgap_maxcps_room(tty, bufcount); | |
2835 | ||
2836 | /* | |
2837 | * Take minimum of what the user wants to send, and the | |
2838 | * space available in the FEP buffer. | |
2839 | */ | |
2840 | count = min(count, bufcount); | |
2841 | ||
2842 | /* | |
2843 | * Bail if no space left. | |
2844 | */ | |
2845 | if (count <= 0) { | |
2846 | dgap_set_firmware_event(un, UN_LOW | UN_EMPTY); | |
2847 | DGAP_UNLOCK(ch->ch_lock, lock_flags); | |
cf42c34d | 2848 | return 0; |
a6792a3e MH |
2849 | } |
2850 | ||
2851 | /* | |
2852 | * Output the printer ON string, if we are in terminal mode, but | |
2853 | * need to be in printer mode. | |
2854 | */ | |
2855 | if ((un->un_type == DGAP_PRINT) && !(ch->ch_flags & CH_PRON)) { | |
2856 | dgap_wmove(ch, ch->ch_digi.digi_onstr, | |
2857 | (int) ch->ch_digi.digi_onlen); | |
2858 | head = readw(&(bs->tx_head)) & tmask; | |
2859 | ch->ch_flags |= CH_PRON; | |
2860 | } | |
2861 | ||
2862 | /* | |
2863 | * On the other hand, output the printer OFF string, if we are | |
2864 | * currently in printer mode, but need to output to the terminal. | |
2865 | */ | |
2866 | if ((un->un_type != DGAP_PRINT) && (ch->ch_flags & CH_PRON)) { | |
2867 | dgap_wmove(ch, ch->ch_digi.digi_offstr, | |
2868 | (int) ch->ch_digi.digi_offlen); | |
2869 | head = readw(&(bs->tx_head)) & tmask; | |
2870 | ch->ch_flags &= ~CH_PRON; | |
2871 | } | |
2872 | ||
2873 | /* | |
8a2c9c44 MH |
2874 | * If there is nothing left to copy, or |
2875 | * I can't handle any more data, leave. | |
a6792a3e MH |
2876 | */ |
2877 | if (count <= 0) { | |
2878 | dgap_set_firmware_event(un, UN_LOW | UN_EMPTY); | |
2879 | DGAP_UNLOCK(ch->ch_lock, lock_flags); | |
cf42c34d | 2880 | return 0; |
a6792a3e MH |
2881 | } |
2882 | ||
a6792a3e MH |
2883 | n = count; |
2884 | ||
2885 | /* | |
2886 | * If the write wraps over the top of the circular buffer, | |
2887 | * move the portion up to the wrap point, and reset the | |
2888 | * pointers to the bottom. | |
2889 | */ | |
2890 | remain = ch->ch_tstart + ch->ch_tsize - head; | |
2891 | ||
2892 | if (n >= remain) { | |
2893 | n -= remain; | |
2894 | vaddr = ch->ch_taddr + head; | |
2895 | ||
2896 | memcpy_toio(vaddr, (uchar *) buf, remain); | |
8a2c9c44 MH |
2897 | dgap_sniff_nowait_nolock(ch, "USER WRITE", (uchar *) buf, |
2898 | remain); | |
a6792a3e MH |
2899 | |
2900 | head = ch->ch_tstart; | |
2901 | buf += remain; | |
2902 | } | |
2903 | ||
2904 | if (n > 0) { | |
2905 | ||
2906 | /* | |
2907 | * Move rest of data. | |
2908 | */ | |
2909 | vaddr = ch->ch_taddr + head; | |
2910 | remain = n; | |
2911 | ||
2912 | memcpy_toio(vaddr, (uchar *) buf, remain); | |
8a2c9c44 MH |
2913 | dgap_sniff_nowait_nolock(ch, "USER WRITE", (uchar *)buf, |
2914 | remain); | |
a6792a3e MH |
2915 | |
2916 | head += remain; | |
2917 | ||
2918 | } | |
2919 | ||
2920 | if (count) { | |
2921 | ch->ch_txcount += count; | |
2922 | head &= tmask; | |
2923 | writew(head, &(bs->tx_head)); | |
2924 | } | |
2925 | ||
a6792a3e MH |
2926 | dgap_set_firmware_event(un, UN_LOW | UN_EMPTY); |
2927 | ||
2928 | /* | |
2929 | * If this is the print device, and the | |
2930 | * printer is still on, we need to turn it | |
2931 | * off before going idle. If the buffer is | |
2932 | * non-empty, wait until it goes empty. | |
2933 | * Otherwise turn it off right now. | |
2934 | */ | |
2935 | if ((un->un_type == DGAP_PRINT) && (ch->ch_flags & CH_PRON)) { | |
2936 | tail = readw(&(bs->tx_tail)) & tmask; | |
2937 | ||
2938 | if (tail != head) { | |
2939 | un->un_flags |= UN_EMPTY; | |
2940 | writeb(1, &(bs->iempty)); | |
305ec874 | 2941 | } else { |
a6792a3e MH |
2942 | dgap_wmove(ch, ch->ch_digi.digi_offstr, |
2943 | (int) ch->ch_digi.digi_offlen); | |
2944 | head = readw(&(bs->tx_head)) & tmask; | |
2945 | ch->ch_flags &= ~CH_PRON; | |
2946 | } | |
2947 | } | |
2948 | ||
2949 | /* Update printer buffer empty time. */ | |
2950 | if ((un->un_type == DGAP_PRINT) && (ch->ch_digi.digi_maxcps > 0) | |
2951 | && (ch->ch_digi.digi_bufsize > 0)) { | |
7d6069d7 | 2952 | ch->ch_cpstime += (HZ * count) / ch->ch_digi.digi_maxcps; |
a6792a3e MH |
2953 | } |
2954 | ||
61260228 | 2955 | DGAP_UNLOCK(ch->ch_lock, lock_flags); |
a6792a3e | 2956 | |
cf42c34d | 2957 | return count; |
a6792a3e MH |
2958 | } |
2959 | ||
a6792a3e MH |
2960 | /* |
2961 | * Return modem signals to ld. | |
2962 | */ | |
2963 | static int dgap_tty_tiocmget(struct tty_struct *tty) | |
2964 | { | |
2965 | struct channel_t *ch; | |
2966 | struct un_t *un; | |
2967 | int result = -EIO; | |
2968 | uchar mstat = 0; | |
2969 | ulong lock_flags; | |
2970 | ||
2971 | if (!tty || tty->magic != TTY_MAGIC) | |
2972 | return result; | |
2973 | ||
2974 | un = tty->driver_data; | |
2975 | if (!un || un->magic != DGAP_UNIT_MAGIC) | |
2976 | return result; | |
2977 | ||
2978 | ch = un->un_ch; | |
2979 | if (!ch || ch->magic != DGAP_CHANNEL_MAGIC) | |
2980 | return result; | |
2981 | ||
a6792a3e MH |
2982 | DGAP_LOCK(ch->ch_lock, lock_flags); |
2983 | ||
2984 | mstat = readb(&(ch->ch_bs->m_stat)); | |
7d6069d7 MH |
2985 | /* Append any outbound signals that might be pending... */ |
2986 | mstat |= ch->ch_mostat; | |
a6792a3e MH |
2987 | |
2988 | DGAP_UNLOCK(ch->ch_lock, lock_flags); | |
2989 | ||
2990 | result = 0; | |
2991 | ||
2992 | if (mstat & D_DTR(ch)) | |
2993 | result |= TIOCM_DTR; | |
2994 | if (mstat & D_RTS(ch)) | |
2995 | result |= TIOCM_RTS; | |
2996 | if (mstat & D_CTS(ch)) | |
2997 | result |= TIOCM_CTS; | |
2998 | if (mstat & D_DSR(ch)) | |
2999 | result |= TIOCM_DSR; | |
3000 | if (mstat & D_RI(ch)) | |
3001 | result |= TIOCM_RI; | |
3002 | if (mstat & D_CD(ch)) | |
3003 | result |= TIOCM_CD; | |
3004 | ||
a6792a3e MH |
3005 | return result; |
3006 | } | |
3007 | ||
a6792a3e MH |
3008 | /* |
3009 | * dgap_tty_tiocmset() | |
3010 | * | |
3011 | * Set modem signals, called by ld. | |
3012 | */ | |
a6792a3e | 3013 | static int dgap_tty_tiocmset(struct tty_struct *tty, |
7d6069d7 | 3014 | unsigned int set, unsigned int clear) |
a6792a3e MH |
3015 | { |
3016 | struct board_t *bd; | |
3017 | struct channel_t *ch; | |
3018 | struct un_t *un; | |
3019 | int ret = -EIO; | |
3020 | ulong lock_flags; | |
3021 | ulong lock_flags2; | |
3022 | ||
3023 | if (!tty || tty->magic != TTY_MAGIC) | |
3024 | return ret; | |
3025 | ||
3026 | un = tty->driver_data; | |
3027 | if (!un || un->magic != DGAP_UNIT_MAGIC) | |
3028 | return ret; | |
3029 | ||
3030 | ch = un->un_ch; | |
3031 | if (!ch || ch->magic != DGAP_CHANNEL_MAGIC) | |
3032 | return ret; | |
3033 | ||
3034 | bd = ch->ch_bd; | |
3035 | if (!bd || bd->magic != DGAP_BOARD_MAGIC) | |
3036 | return ret; | |
3037 | ||
a6792a3e MH |
3038 | DGAP_LOCK(bd->bd_lock, lock_flags); |
3039 | DGAP_LOCK(ch->ch_lock, lock_flags2); | |
3040 | ||
3041 | if (set & TIOCM_RTS) { | |
3042 | ch->ch_mforce |= D_RTS(ch); | |
3043 | ch->ch_mval |= D_RTS(ch); | |
7d6069d7 | 3044 | } |
a6792a3e MH |
3045 | |
3046 | if (set & TIOCM_DTR) { | |
3047 | ch->ch_mforce |= D_DTR(ch); | |
3048 | ch->ch_mval |= D_DTR(ch); | |
7d6069d7 | 3049 | } |
a6792a3e MH |
3050 | |
3051 | if (clear & TIOCM_RTS) { | |
3052 | ch->ch_mforce |= D_RTS(ch); | |
3053 | ch->ch_mval &= ~(D_RTS(ch)); | |
7d6069d7 | 3054 | } |
a6792a3e MH |
3055 | |
3056 | if (clear & TIOCM_DTR) { | |
3057 | ch->ch_mforce |= D_DTR(ch); | |
3058 | ch->ch_mval &= ~(D_DTR(ch)); | |
7d6069d7 | 3059 | } |
a6792a3e MH |
3060 | |
3061 | dgap_param(tty); | |
3062 | ||
3063 | DGAP_UNLOCK(ch->ch_lock, lock_flags2); | |
3064 | DGAP_UNLOCK(bd->bd_lock, lock_flags); | |
3065 | ||
cf42c34d | 3066 | return 0; |
a6792a3e MH |
3067 | } |
3068 | ||
a6792a3e MH |
3069 | /* |
3070 | * dgap_tty_send_break() | |
3071 | * | |
3072 | * Send a Break, called by ld. | |
3073 | */ | |
3074 | static int dgap_tty_send_break(struct tty_struct *tty, int msec) | |
3075 | { | |
3076 | struct board_t *bd; | |
3077 | struct channel_t *ch; | |
3078 | struct un_t *un; | |
3079 | int ret = -EIO; | |
3080 | ulong lock_flags; | |
3081 | ulong lock_flags2; | |
3082 | ||
3083 | if (!tty || tty->magic != TTY_MAGIC) | |
3084 | return ret; | |
3085 | ||
3086 | un = tty->driver_data; | |
3087 | if (!un || un->magic != DGAP_UNIT_MAGIC) | |
3088 | return ret; | |
3089 | ||
3090 | ch = un->un_ch; | |
3091 | if (!ch || ch->magic != DGAP_CHANNEL_MAGIC) | |
3092 | return ret; | |
3093 | ||
3094 | bd = ch->ch_bd; | |
3095 | if (!bd || bd->magic != DGAP_BOARD_MAGIC) | |
3096 | return ret; | |
3097 | ||
3098 | switch (msec) { | |
3099 | case -1: | |
3100 | msec = 0xFFFF; | |
3101 | break; | |
3102 | case 0: | |
3103 | msec = 1; | |
3104 | break; | |
3105 | default: | |
3106 | msec /= 10; | |
3107 | break; | |
3108 | } | |
3109 | ||
a6792a3e MH |
3110 | DGAP_LOCK(bd->bd_lock, lock_flags); |
3111 | DGAP_LOCK(ch->ch_lock, lock_flags2); | |
3112 | #if 0 | |
3113 | dgap_cmdw(ch, SBREAK, (u16) SBREAK_TIME, 0); | |
3114 | #endif | |
3115 | dgap_cmdw(ch, SBREAK, (u16) msec, 0); | |
3116 | ||
3117 | DGAP_UNLOCK(ch->ch_lock, lock_flags2); | |
3118 | DGAP_UNLOCK(bd->bd_lock, lock_flags); | |
3119 | ||
cf42c34d | 3120 | return 0; |
a6792a3e MH |
3121 | } |
3122 | ||
a6792a3e MH |
3123 | /* |
3124 | * dgap_tty_wait_until_sent() | |
3125 | * | |
3126 | * wait until data has been transmitted, called by ld. | |
3127 | */ | |
3128 | static void dgap_tty_wait_until_sent(struct tty_struct *tty, int timeout) | |
3129 | { | |
31960c16 | 3130 | dgap_wait_for_drain(tty); |
a6792a3e MH |
3131 | } |
3132 | ||
a6792a3e MH |
3133 | /* |
3134 | * dgap_send_xchar() | |
3135 | * | |
3136 | * send a high priority character, called by ld. | |
3137 | */ | |
3138 | static void dgap_tty_send_xchar(struct tty_struct *tty, char c) | |
3139 | { | |
3140 | struct board_t *bd; | |
3141 | struct channel_t *ch; | |
3142 | struct un_t *un; | |
3143 | ulong lock_flags; | |
3144 | ulong lock_flags2; | |
3145 | ||
3146 | if (!tty || tty->magic != TTY_MAGIC) | |
3147 | return; | |
3148 | ||
3149 | un = tty->driver_data; | |
3150 | if (!un || un->magic != DGAP_UNIT_MAGIC) | |
3151 | return; | |
3152 | ||
3153 | ch = un->un_ch; | |
3154 | if (!ch || ch->magic != DGAP_CHANNEL_MAGIC) | |
3155 | return; | |
3156 | ||
3157 | bd = ch->ch_bd; | |
3158 | if (!bd || bd->magic != DGAP_BOARD_MAGIC) | |
3159 | return; | |
3160 | ||
a6792a3e MH |
3161 | DGAP_LOCK(bd->bd_lock, lock_flags); |
3162 | DGAP_LOCK(ch->ch_lock, lock_flags2); | |
3163 | ||
3164 | /* | |
3165 | * This is technically what we should do. | |
3166 | * However, the NIST tests specifically want | |
3167 | * to see each XON or XOFF character that it | |
3168 | * sends, so lets just send each character | |
3169 | * by hand... | |
3170 | */ | |
3171 | #if 0 | |
305ec874 | 3172 | if (c == STOP_CHAR(tty)) |
a6792a3e | 3173 | dgap_cmdw(ch, RPAUSE, 0, 0); |
305ec874 | 3174 | else if (c == START_CHAR(tty)) |
a6792a3e | 3175 | dgap_cmdw(ch, RRESUME, 0, 0); |
305ec874 | 3176 | else |
a6792a3e | 3177 | dgap_wmove(ch, &c, 1); |
a6792a3e MH |
3178 | #else |
3179 | dgap_wmove(ch, &c, 1); | |
3180 | #endif | |
3181 | ||
3182 | DGAP_UNLOCK(ch->ch_lock, lock_flags2); | |
3183 | DGAP_UNLOCK(bd->bd_lock, lock_flags); | |
3184 | ||
a6792a3e MH |
3185 | return; |
3186 | } | |
3187 | ||
a6792a3e MH |
3188 | /* |
3189 | * Return modem signals to ld. | |
3190 | */ | |
3191 | static int dgap_get_modem_info(struct channel_t *ch, unsigned int __user *value) | |
3192 | { | |
3193 | int result = 0; | |
3194 | uchar mstat = 0; | |
3195 | ulong lock_flags; | |
3196 | int rc = 0; | |
3197 | ||
a6792a3e | 3198 | if (!ch || ch->magic != DGAP_CHANNEL_MAGIC) |
cf42c34d | 3199 | return -ENXIO; |
a6792a3e MH |
3200 | |
3201 | DGAP_LOCK(ch->ch_lock, lock_flags); | |
3202 | ||
3203 | mstat = readb(&(ch->ch_bs->m_stat)); | |
3204 | /* Append any outbound signals that might be pending... */ | |
3205 | mstat |= ch->ch_mostat; | |
3206 | ||
3207 | DGAP_UNLOCK(ch->ch_lock, lock_flags); | |
3208 | ||
3209 | result = 0; | |
3210 | ||
3211 | if (mstat & D_DTR(ch)) | |
3212 | result |= TIOCM_DTR; | |
3213 | if (mstat & D_RTS(ch)) | |
3214 | result |= TIOCM_RTS; | |
3215 | if (mstat & D_CTS(ch)) | |
3216 | result |= TIOCM_CTS; | |
3217 | if (mstat & D_DSR(ch)) | |
3218 | result |= TIOCM_DSR; | |
3219 | if (mstat & D_RI(ch)) | |
3220 | result |= TIOCM_RI; | |
3221 | if (mstat & D_CD(ch)) | |
3222 | result |= TIOCM_CD; | |
3223 | ||
3224 | rc = put_user(result, value); | |
3225 | ||
cf42c34d | 3226 | return rc; |
a6792a3e MH |
3227 | } |
3228 | ||
a6792a3e MH |
3229 | /* |
3230 | * dgap_set_modem_info() | |
3231 | * | |
3232 | * Set modem signals, called by ld. | |
3233 | */ | |
8a2c9c44 MH |
3234 | static int dgap_set_modem_info(struct tty_struct *tty, unsigned int command, |
3235 | unsigned int __user *value) | |
a6792a3e MH |
3236 | { |
3237 | struct board_t *bd; | |
3238 | struct channel_t *ch; | |
3239 | struct un_t *un; | |
3240 | int ret = -ENXIO; | |
3241 | unsigned int arg = 0; | |
3242 | ulong lock_flags; | |
3243 | ulong lock_flags2; | |
3244 | ||
3245 | if (!tty || tty->magic != TTY_MAGIC) | |
3246 | return ret; | |
3247 | ||
3248 | un = tty->driver_data; | |
3249 | if (!un || un->magic != DGAP_UNIT_MAGIC) | |
3250 | return ret; | |
3251 | ||
3252 | ch = un->un_ch; | |
3253 | if (!ch || ch->magic != DGAP_CHANNEL_MAGIC) | |
3254 | return ret; | |
3255 | ||
3256 | bd = ch->ch_bd; | |
3257 | if (!bd || bd->magic != DGAP_BOARD_MAGIC) | |
3258 | return ret; | |
3259 | ||
a6792a3e | 3260 | ret = get_user(arg, value); |
31960c16 | 3261 | if (ret) |
cf42c34d | 3262 | return ret; |
a6792a3e MH |
3263 | |
3264 | switch (command) { | |
3265 | case TIOCMBIS: | |
3266 | if (arg & TIOCM_RTS) { | |
3267 | ch->ch_mforce |= D_RTS(ch); | |
3268 | ch->ch_mval |= D_RTS(ch); | |
7d6069d7 | 3269 | } |
a6792a3e MH |
3270 | |
3271 | if (arg & TIOCM_DTR) { | |
3272 | ch->ch_mforce |= D_DTR(ch); | |
3273 | ch->ch_mval |= D_DTR(ch); | |
7d6069d7 | 3274 | } |
a6792a3e MH |
3275 | |
3276 | break; | |
3277 | ||
3278 | case TIOCMBIC: | |
3279 | if (arg & TIOCM_RTS) { | |
3280 | ch->ch_mforce |= D_RTS(ch); | |
3281 | ch->ch_mval &= ~(D_RTS(ch)); | |
7d6069d7 | 3282 | } |
a6792a3e MH |
3283 | |
3284 | if (arg & TIOCM_DTR) { | |
3285 | ch->ch_mforce |= D_DTR(ch); | |
3286 | ch->ch_mval &= ~(D_DTR(ch)); | |
7d6069d7 | 3287 | } |
a6792a3e MH |
3288 | |
3289 | break; | |
3290 | ||
7d6069d7 | 3291 | case TIOCMSET: |
a6792a3e MH |
3292 | ch->ch_mforce = D_DTR(ch)|D_RTS(ch); |
3293 | ||
305ec874 | 3294 | if (arg & TIOCM_RTS) |
a6792a3e | 3295 | ch->ch_mval |= D_RTS(ch); |
305ec874 | 3296 | else |
a6792a3e | 3297 | ch->ch_mval &= ~(D_RTS(ch)); |
a6792a3e | 3298 | |
305ec874 | 3299 | if (arg & TIOCM_DTR) |
a6792a3e | 3300 | ch->ch_mval |= (D_DTR(ch)); |
305ec874 | 3301 | else |
a6792a3e | 3302 | ch->ch_mval &= ~(D_DTR(ch)); |
a6792a3e MH |
3303 | |
3304 | break; | |
3305 | ||
3306 | default: | |
cf42c34d | 3307 | return -EINVAL; |
a6792a3e MH |
3308 | } |
3309 | ||
3310 | DGAP_LOCK(bd->bd_lock, lock_flags); | |
3311 | DGAP_LOCK(ch->ch_lock, lock_flags2); | |
3312 | ||
3313 | dgap_param(tty); | |
3314 | ||
3315 | DGAP_UNLOCK(ch->ch_lock, lock_flags2); | |
3316 | DGAP_UNLOCK(bd->bd_lock, lock_flags); | |
3317 | ||
cf42c34d | 3318 | return 0; |
a6792a3e MH |
3319 | } |
3320 | ||
a6792a3e MH |
3321 | /* |
3322 | * dgap_tty_digigeta() | |
3323 | * | |
3324 | * Ioctl to get the information for ditty. | |
3325 | * | |
3326 | * | |
3327 | * | |
3328 | */ | |
8a2c9c44 MH |
3329 | static int dgap_tty_digigeta(struct tty_struct *tty, |
3330 | struct digi_t __user *retinfo) | |
a6792a3e MH |
3331 | { |
3332 | struct channel_t *ch; | |
3333 | struct un_t *un; | |
3334 | struct digi_t tmp; | |
3335 | ulong lock_flags; | |
3336 | ||
3337 | if (!retinfo) | |
cf42c34d | 3338 | return -EFAULT; |
a6792a3e MH |
3339 | |
3340 | if (!tty || tty->magic != TTY_MAGIC) | |
cf42c34d | 3341 | return -EFAULT; |
a6792a3e MH |
3342 | |
3343 | un = tty->driver_data; | |
3344 | if (!un || un->magic != DGAP_UNIT_MAGIC) | |
cf42c34d | 3345 | return -EFAULT; |
a6792a3e MH |
3346 | |
3347 | ch = un->un_ch; | |
3348 | if (!ch || ch->magic != DGAP_CHANNEL_MAGIC) | |
cf42c34d | 3349 | return -EFAULT; |
a6792a3e MH |
3350 | |
3351 | memset(&tmp, 0, sizeof(tmp)); | |
3352 | ||
3353 | DGAP_LOCK(ch->ch_lock, lock_flags); | |
3354 | memcpy(&tmp, &ch->ch_digi, sizeof(tmp)); | |
3355 | DGAP_UNLOCK(ch->ch_lock, lock_flags); | |
3356 | ||
3357 | if (copy_to_user(retinfo, &tmp, sizeof(*retinfo))) | |
cf42c34d | 3358 | return -EFAULT; |
a6792a3e | 3359 | |
cf42c34d | 3360 | return 0; |
a6792a3e MH |
3361 | } |
3362 | ||
a6792a3e MH |
3363 | /* |
3364 | * dgap_tty_digiseta() | |
3365 | * | |
3366 | * Ioctl to set the information for ditty. | |
3367 | * | |
3368 | * | |
3369 | * | |
3370 | */ | |
8a2c9c44 MH |
3371 | static int dgap_tty_digiseta(struct tty_struct *tty, |
3372 | struct digi_t __user *new_info) | |
a6792a3e MH |
3373 | { |
3374 | struct board_t *bd; | |
3375 | struct channel_t *ch; | |
3376 | struct un_t *un; | |
3377 | struct digi_t new_digi; | |
3378 | ulong lock_flags = 0; | |
3379 | unsigned long lock_flags2; | |
3380 | ||
a6792a3e | 3381 | if (!tty || tty->magic != TTY_MAGIC) |
cf42c34d | 3382 | return -EFAULT; |
a6792a3e MH |
3383 | |
3384 | un = tty->driver_data; | |
3385 | if (!un || un->magic != DGAP_UNIT_MAGIC) | |
cf42c34d | 3386 | return -EFAULT; |
a6792a3e MH |
3387 | |
3388 | ch = un->un_ch; | |
3389 | if (!ch || ch->magic != DGAP_CHANNEL_MAGIC) | |
cf42c34d | 3390 | return -EFAULT; |
a6792a3e MH |
3391 | |
3392 | bd = ch->ch_bd; | |
3393 | if (!bd || bd->magic != DGAP_BOARD_MAGIC) | |
cf42c34d | 3394 | return -EFAULT; |
a6792a3e | 3395 | |
31960c16 MH |
3396 | if (copy_from_user(&new_digi, new_info, sizeof(struct digi_t))) |
3397 | return -EFAULT; | |
a6792a3e MH |
3398 | |
3399 | DGAP_LOCK(bd->bd_lock, lock_flags); | |
3400 | DGAP_LOCK(ch->ch_lock, lock_flags2); | |
3401 | ||
3402 | memcpy(&ch->ch_digi, &new_digi, sizeof(struct digi_t)); | |
3403 | ||
3404 | if (ch->ch_digi.digi_maxcps < 1) | |
3405 | ch->ch_digi.digi_maxcps = 1; | |
3406 | ||
3407 | if (ch->ch_digi.digi_maxcps > 10000) | |
3408 | ch->ch_digi.digi_maxcps = 10000; | |
3409 | ||
3410 | if (ch->ch_digi.digi_bufsize < 10) | |
3411 | ch->ch_digi.digi_bufsize = 10; | |
3412 | ||
3413 | if (ch->ch_digi.digi_maxchar < 1) | |
3414 | ch->ch_digi.digi_maxchar = 1; | |
3415 | ||
3416 | if (ch->ch_digi.digi_maxchar > ch->ch_digi.digi_bufsize) | |
3417 | ch->ch_digi.digi_maxchar = ch->ch_digi.digi_bufsize; | |
3418 | ||
3419 | if (ch->ch_digi.digi_onlen > DIGI_PLEN) | |
3420 | ch->ch_digi.digi_onlen = DIGI_PLEN; | |
3421 | ||
3422 | if (ch->ch_digi.digi_offlen > DIGI_PLEN) | |
3423 | ch->ch_digi.digi_offlen = DIGI_PLEN; | |
3424 | ||
3425 | dgap_param(tty); | |
3426 | ||
3427 | DGAP_UNLOCK(ch->ch_lock, lock_flags2); | |
3428 | DGAP_UNLOCK(bd->bd_lock, lock_flags); | |
3429 | ||
cf42c34d | 3430 | return 0; |
a6792a3e MH |
3431 | } |
3432 | ||
a6792a3e MH |
3433 | /* |
3434 | * dgap_tty_digigetedelay() | |
3435 | * | |
3436 | * Ioctl to get the current edelay setting. | |
3437 | * | |
3438 | * | |
3439 | * | |
3440 | */ | |
3441 | static int dgap_tty_digigetedelay(struct tty_struct *tty, int __user *retinfo) | |
3442 | { | |
3443 | struct channel_t *ch; | |
3444 | struct un_t *un; | |
3445 | int tmp; | |
3446 | ulong lock_flags; | |
3447 | ||
3448 | if (!retinfo) | |
cf42c34d | 3449 | return -EFAULT; |
a6792a3e MH |
3450 | |
3451 | if (!tty || tty->magic != TTY_MAGIC) | |
cf42c34d | 3452 | return -EFAULT; |
a6792a3e MH |
3453 | |
3454 | un = tty->driver_data; | |
3455 | if (!un || un->magic != DGAP_UNIT_MAGIC) | |
cf42c34d | 3456 | return -EFAULT; |
a6792a3e MH |
3457 | |
3458 | ch = un->un_ch; | |
3459 | if (!ch || ch->magic != DGAP_CHANNEL_MAGIC) | |
cf42c34d | 3460 | return -EFAULT; |
a6792a3e MH |
3461 | |
3462 | memset(&tmp, 0, sizeof(tmp)); | |
3463 | ||
3464 | DGAP_LOCK(ch->ch_lock, lock_flags); | |
3465 | tmp = readw(&(ch->ch_bs->edelay)); | |
3466 | DGAP_UNLOCK(ch->ch_lock, lock_flags); | |
3467 | ||
3468 | if (copy_to_user(retinfo, &tmp, sizeof(*retinfo))) | |
cf42c34d | 3469 | return -EFAULT; |
a6792a3e | 3470 | |
cf42c34d | 3471 | return 0; |
a6792a3e MH |
3472 | } |
3473 | ||
a6792a3e MH |
3474 | /* |
3475 | * dgap_tty_digisetedelay() | |
3476 | * | |
3477 | * Ioctl to set the EDELAY setting | |
3478 | * | |
3479 | */ | |
3480 | static int dgap_tty_digisetedelay(struct tty_struct *tty, int __user *new_info) | |
3481 | { | |
3482 | struct board_t *bd; | |
3483 | struct channel_t *ch; | |
3484 | struct un_t *un; | |
3485 | int new_digi; | |
3486 | ulong lock_flags; | |
3487 | ulong lock_flags2; | |
3488 | ||
a6792a3e | 3489 | if (!tty || tty->magic != TTY_MAGIC) |
cf42c34d | 3490 | return -EFAULT; |
a6792a3e MH |
3491 | |
3492 | un = tty->driver_data; | |
3493 | if (!un || un->magic != DGAP_UNIT_MAGIC) | |
cf42c34d | 3494 | return -EFAULT; |
a6792a3e MH |
3495 | |
3496 | ch = un->un_ch; | |
3497 | if (!ch || ch->magic != DGAP_CHANNEL_MAGIC) | |
cf42c34d | 3498 | return -EFAULT; |
a6792a3e MH |
3499 | |
3500 | bd = ch->ch_bd; | |
3501 | if (!bd || bd->magic != DGAP_BOARD_MAGIC) | |
cf42c34d | 3502 | return -EFAULT; |
a6792a3e | 3503 | |
31960c16 MH |
3504 | if (copy_from_user(&new_digi, new_info, sizeof(int))) |
3505 | return -EFAULT; | |
a6792a3e MH |
3506 | |
3507 | DGAP_LOCK(bd->bd_lock, lock_flags); | |
3508 | DGAP_LOCK(ch->ch_lock, lock_flags2); | |
3509 | ||
3510 | writew((u16) new_digi, &(ch->ch_bs->edelay)); | |
3511 | ||
3512 | dgap_param(tty); | |
3513 | ||
3514 | DGAP_UNLOCK(ch->ch_lock, lock_flags2); | |
3515 | DGAP_UNLOCK(bd->bd_lock, lock_flags); | |
3516 | ||
cf42c34d | 3517 | return 0; |
a6792a3e MH |
3518 | } |
3519 | ||
a6792a3e MH |
3520 | /* |
3521 | * dgap_tty_digigetcustombaud() | |
3522 | * | |
3523 | * Ioctl to get the current custom baud rate setting. | |
3524 | */ | |
8a2c9c44 MH |
3525 | static int dgap_tty_digigetcustombaud(struct tty_struct *tty, |
3526 | int __user *retinfo) | |
a6792a3e MH |
3527 | { |
3528 | struct channel_t *ch; | |
3529 | struct un_t *un; | |
3530 | int tmp; | |
3531 | ulong lock_flags; | |
3532 | ||
3533 | if (!retinfo) | |
cf42c34d | 3534 | return -EFAULT; |
a6792a3e MH |
3535 | |
3536 | if (!tty || tty->magic != TTY_MAGIC) | |
cf42c34d | 3537 | return -EFAULT; |
a6792a3e MH |
3538 | |
3539 | un = tty->driver_data; | |
3540 | if (!un || un->magic != DGAP_UNIT_MAGIC) | |
cf42c34d | 3541 | return -EFAULT; |
a6792a3e MH |
3542 | |
3543 | ch = un->un_ch; | |
3544 | if (!ch || ch->magic != DGAP_CHANNEL_MAGIC) | |
cf42c34d | 3545 | return -EFAULT; |
a6792a3e MH |
3546 | |
3547 | memset(&tmp, 0, sizeof(tmp)); | |
3548 | ||
3549 | DGAP_LOCK(ch->ch_lock, lock_flags); | |
3550 | tmp = dgap_get_custom_baud(ch); | |
3551 | DGAP_UNLOCK(ch->ch_lock, lock_flags); | |
3552 | ||
a6792a3e | 3553 | if (copy_to_user(retinfo, &tmp, sizeof(*retinfo))) |
cf42c34d | 3554 | return -EFAULT; |
a6792a3e | 3555 | |
cf42c34d | 3556 | return 0; |
a6792a3e MH |
3557 | } |
3558 | ||
a6792a3e MH |
3559 | /* |
3560 | * dgap_tty_digisetcustombaud() | |
3561 | * | |
3562 | * Ioctl to set the custom baud rate setting | |
3563 | */ | |
8a2c9c44 MH |
3564 | static int dgap_tty_digisetcustombaud(struct tty_struct *tty, |
3565 | int __user *new_info) | |
a6792a3e MH |
3566 | { |
3567 | struct board_t *bd; | |
3568 | struct channel_t *ch; | |
3569 | struct un_t *un; | |
3570 | uint new_rate; | |
3571 | ulong lock_flags; | |
3572 | ulong lock_flags2; | |
3573 | ||
a6792a3e | 3574 | if (!tty || tty->magic != TTY_MAGIC) |
cf42c34d | 3575 | return -EFAULT; |
a6792a3e MH |
3576 | |
3577 | un = tty->driver_data; | |
3578 | if (!un || un->magic != DGAP_UNIT_MAGIC) | |
cf42c34d | 3579 | return -EFAULT; |
a6792a3e MH |
3580 | |
3581 | ch = un->un_ch; | |
3582 | if (!ch || ch->magic != DGAP_CHANNEL_MAGIC) | |
cf42c34d | 3583 | return -EFAULT; |
a6792a3e MH |
3584 | |
3585 | bd = ch->ch_bd; | |
3586 | if (!bd || bd->magic != DGAP_BOARD_MAGIC) | |
cf42c34d | 3587 | return -EFAULT; |
a6792a3e MH |
3588 | |
3589 | ||
31960c16 | 3590 | if (copy_from_user(&new_rate, new_info, sizeof(unsigned int))) |
cf42c34d | 3591 | return -EFAULT; |
a6792a3e MH |
3592 | |
3593 | if (bd->bd_flags & BD_FEP5PLUS) { | |
3594 | ||
a6792a3e MH |
3595 | DGAP_LOCK(bd->bd_lock, lock_flags); |
3596 | DGAP_LOCK(ch->ch_lock, lock_flags2); | |
3597 | ||
3598 | ch->ch_custom_speed = new_rate; | |
3599 | ||
3600 | dgap_param(tty); | |
3601 | ||
3602 | DGAP_UNLOCK(ch->ch_lock, lock_flags2); | |
3603 | DGAP_UNLOCK(bd->bd_lock, lock_flags); | |
3604 | } | |
3605 | ||
cf42c34d | 3606 | return 0; |
a6792a3e MH |
3607 | } |
3608 | ||
a6792a3e MH |
3609 | /* |
3610 | * dgap_set_termios() | |
3611 | */ | |
8a2c9c44 MH |
3612 | static void dgap_tty_set_termios(struct tty_struct *tty, |
3613 | struct ktermios *old_termios) | |
a6792a3e MH |
3614 | { |
3615 | struct board_t *bd; | |
3616 | struct channel_t *ch; | |
3617 | struct un_t *un; | |
3618 | unsigned long lock_flags; | |
3619 | unsigned long lock_flags2; | |
3620 | ||
3621 | if (!tty || tty->magic != TTY_MAGIC) | |
3622 | return; | |
3623 | ||
3624 | un = tty->driver_data; | |
3625 | if (!un || un->magic != DGAP_UNIT_MAGIC) | |
3626 | return; | |
3627 | ||
3628 | ch = un->un_ch; | |
3629 | if (!ch || ch->magic != DGAP_CHANNEL_MAGIC) | |
3630 | return; | |
3631 | ||
3632 | bd = ch->ch_bd; | |
3633 | if (!bd || bd->magic != DGAP_BOARD_MAGIC) | |
3634 | return; | |
3635 | ||
3636 | DGAP_LOCK(bd->bd_lock, lock_flags); | |
3637 | DGAP_LOCK(ch->ch_lock, lock_flags2); | |
3638 | ||
3639 | ch->ch_c_cflag = tty->termios.c_cflag; | |
3640 | ch->ch_c_iflag = tty->termios.c_iflag; | |
3641 | ch->ch_c_oflag = tty->termios.c_oflag; | |
3642 | ch->ch_c_lflag = tty->termios.c_lflag; | |
3643 | ch->ch_startc = tty->termios.c_cc[VSTART]; | |
3644 | ch->ch_stopc = tty->termios.c_cc[VSTOP]; | |
3645 | ||
3646 | dgap_carrier(ch); | |
3647 | dgap_param(tty); | |
3648 | ||
3649 | DGAP_UNLOCK(ch->ch_lock, lock_flags2); | |
3650 | DGAP_UNLOCK(bd->bd_lock, lock_flags); | |
3651 | } | |
3652 | ||
a6792a3e MH |
3653 | static void dgap_tty_throttle(struct tty_struct *tty) |
3654 | { | |
3655 | struct board_t *bd; | |
3656 | struct channel_t *ch; | |
3657 | struct un_t *un; | |
3658 | ulong lock_flags; | |
3659 | ulong lock_flags2; | |
3660 | ||
3661 | if (!tty || tty->magic != TTY_MAGIC) | |
3662 | return; | |
3663 | ||
3664 | un = tty->driver_data; | |
3665 | if (!un || un->magic != DGAP_UNIT_MAGIC) | |
3666 | return; | |
3667 | ||
7d6069d7 MH |
3668 | ch = un->un_ch; |
3669 | if (!ch || ch->magic != DGAP_CHANNEL_MAGIC) | |
cf42c34d | 3670 | return; |
a6792a3e MH |
3671 | |
3672 | bd = ch->ch_bd; | |
3673 | if (!bd || bd->magic != DGAP_BOARD_MAGIC) | |
3674 | return; | |
3675 | ||
a6792a3e MH |
3676 | DGAP_LOCK(bd->bd_lock, lock_flags); |
3677 | DGAP_LOCK(ch->ch_lock, lock_flags2); | |
3678 | ||
3679 | ch->ch_flags |= (CH_RXBLOCK); | |
3680 | #if 1 | |
3681 | dgap_cmdw(ch, RPAUSE, 0, 0); | |
3682 | #endif | |
3683 | ||
3684 | DGAP_UNLOCK(ch->ch_lock, lock_flags2); | |
3685 | DGAP_UNLOCK(bd->bd_lock, lock_flags); | |
3686 | ||
a6792a3e MH |
3687 | } |
3688 | ||
a6792a3e MH |
3689 | static void dgap_tty_unthrottle(struct tty_struct *tty) |
3690 | { | |
3691 | struct board_t *bd; | |
3692 | struct channel_t *ch; | |
3693 | struct un_t *un; | |
3694 | ulong lock_flags; | |
3695 | ulong lock_flags2; | |
3696 | ||
3697 | if (!tty || tty->magic != TTY_MAGIC) | |
3698 | return; | |
3699 | ||
3700 | un = tty->driver_data; | |
3701 | if (!un || un->magic != DGAP_UNIT_MAGIC) | |
3702 | return; | |
3703 | ||
7d6069d7 MH |
3704 | ch = un->un_ch; |
3705 | if (!ch || ch->magic != DGAP_CHANNEL_MAGIC) | |
cf42c34d | 3706 | return; |
a6792a3e MH |
3707 | |
3708 | bd = ch->ch_bd; | |
3709 | if (!bd || bd->magic != DGAP_BOARD_MAGIC) | |
3710 | return; | |
3711 | ||
a6792a3e MH |
3712 | DGAP_LOCK(bd->bd_lock, lock_flags); |
3713 | DGAP_LOCK(ch->ch_lock, lock_flags2); | |
3714 | ||
3715 | ch->ch_flags &= ~(CH_RXBLOCK); | |
3716 | ||
3717 | #if 1 | |
3718 | dgap_cmdw(ch, RRESUME, 0, 0); | |
3719 | #endif | |
3720 | ||
3721 | DGAP_UNLOCK(ch->ch_lock, lock_flags2); | |
3722 | DGAP_UNLOCK(bd->bd_lock, lock_flags); | |
a6792a3e MH |
3723 | } |
3724 | ||
a6792a3e MH |
3725 | static void dgap_tty_start(struct tty_struct *tty) |
3726 | { | |
3727 | struct board_t *bd; | |
3728 | struct channel_t *ch; | |
3729 | struct un_t *un; | |
3730 | ulong lock_flags; | |
3731 | ulong lock_flags2; | |
3732 | ||
3733 | if (!tty || tty->magic != TTY_MAGIC) | |
3734 | return; | |
3735 | ||
3736 | un = tty->driver_data; | |
3737 | if (!un || un->magic != DGAP_UNIT_MAGIC) | |
3738 | return; | |
3739 | ||
7d6069d7 MH |
3740 | ch = un->un_ch; |
3741 | if (!ch || ch->magic != DGAP_CHANNEL_MAGIC) | |
cf42c34d | 3742 | return; |
a6792a3e MH |
3743 | |
3744 | bd = ch->ch_bd; | |
3745 | if (!bd || bd->magic != DGAP_BOARD_MAGIC) | |
3746 | return; | |
3747 | ||
a6792a3e MH |
3748 | DGAP_LOCK(bd->bd_lock, lock_flags); |
3749 | DGAP_LOCK(ch->ch_lock, lock_flags2); | |
3750 | ||
3751 | dgap_cmdw(ch, RESUMETX, 0, 0); | |
3752 | ||
3753 | DGAP_UNLOCK(ch->ch_lock, lock_flags2); | |
3754 | DGAP_UNLOCK(bd->bd_lock, lock_flags); | |
3755 | ||
a6792a3e MH |
3756 | } |
3757 | ||
a6792a3e MH |
3758 | static void dgap_tty_stop(struct tty_struct *tty) |
3759 | { | |
3760 | struct board_t *bd; | |
3761 | struct channel_t *ch; | |
3762 | struct un_t *un; | |
3763 | ulong lock_flags; | |
3764 | ulong lock_flags2; | |
3765 | ||
3766 | if (!tty || tty->magic != TTY_MAGIC) | |
3767 | return; | |
3768 | ||
3769 | un = tty->driver_data; | |
3770 | if (!un || un->magic != DGAP_UNIT_MAGIC) | |
3771 | return; | |
3772 | ||
7d6069d7 MH |
3773 | ch = un->un_ch; |
3774 | if (!ch || ch->magic != DGAP_CHANNEL_MAGIC) | |
cf42c34d | 3775 | return; |
a6792a3e MH |
3776 | |
3777 | bd = ch->ch_bd; | |
3778 | if (!bd || bd->magic != DGAP_BOARD_MAGIC) | |
3779 | return; | |
3780 | ||
a6792a3e MH |
3781 | DGAP_LOCK(bd->bd_lock, lock_flags); |
3782 | DGAP_LOCK(ch->ch_lock, lock_flags2); | |
3783 | ||
3784 | dgap_cmdw(ch, PAUSETX, 0, 0); | |
3785 | ||
3786 | DGAP_UNLOCK(ch->ch_lock, lock_flags2); | |
3787 | DGAP_UNLOCK(bd->bd_lock, lock_flags); | |
3788 | ||
a6792a3e MH |
3789 | } |
3790 | ||
a6792a3e MH |
3791 | /* |
3792 | * dgap_tty_flush_chars() | |
3793 | * | |
3794 | * Flush the cook buffer | |
3795 | * | |
3796 | * Note to self, and any other poor souls who venture here: | |
3797 | * | |
3798 | * flush in this case DOES NOT mean dispose of the data. | |
3799 | * instead, it means "stop buffering and send it if you | |
3800 | * haven't already." Just guess how I figured that out... SRW 2-Jun-98 | |
3801 | * | |
3802 | * It is also always called in interrupt context - JAR 8-Sept-99 | |
3803 | */ | |
3804 | static void dgap_tty_flush_chars(struct tty_struct *tty) | |
3805 | { | |
3806 | struct board_t *bd; | |
3807 | struct channel_t *ch; | |
3808 | struct un_t *un; | |
3809 | ulong lock_flags; | |
3810 | ulong lock_flags2; | |
3811 | ||
3812 | if (!tty || tty->magic != TTY_MAGIC) | |
3813 | return; | |
3814 | ||
3815 | un = tty->driver_data; | |
3816 | if (!un || un->magic != DGAP_UNIT_MAGIC) | |
3817 | return; | |
3818 | ||
7d6069d7 MH |
3819 | ch = un->un_ch; |
3820 | if (!ch || ch->magic != DGAP_CHANNEL_MAGIC) | |
cf42c34d | 3821 | return; |
a6792a3e MH |
3822 | |
3823 | bd = ch->ch_bd; | |
3824 | if (!bd || bd->magic != DGAP_BOARD_MAGIC) | |
3825 | return; | |
3826 | ||
a6792a3e MH |
3827 | DGAP_LOCK(bd->bd_lock, lock_flags); |
3828 | DGAP_LOCK(ch->ch_lock, lock_flags2); | |
3829 | ||
3830 | /* TODO: Do something here */ | |
3831 | ||
3832 | DGAP_UNLOCK(ch->ch_lock, lock_flags2); | |
3833 | DGAP_UNLOCK(bd->bd_lock, lock_flags); | |
a6792a3e MH |
3834 | } |
3835 | ||
a6792a3e MH |
3836 | /* |
3837 | * dgap_tty_flush_buffer() | |
3838 | * | |
3839 | * Flush Tx buffer (make in == out) | |
3840 | */ | |
3841 | static void dgap_tty_flush_buffer(struct tty_struct *tty) | |
3842 | { | |
3843 | struct board_t *bd; | |
3844 | struct channel_t *ch; | |
3845 | struct un_t *un; | |
3846 | ulong lock_flags; | |
3847 | ulong lock_flags2; | |
3848 | u16 head = 0; | |
3849 | ||
3850 | if (!tty || tty->magic != TTY_MAGIC) | |
3851 | return; | |
3852 | ||
3853 | un = tty->driver_data; | |
3854 | if (!un || un->magic != DGAP_UNIT_MAGIC) | |
3855 | return; | |
3856 | ||
7d6069d7 MH |
3857 | ch = un->un_ch; |
3858 | if (!ch || ch->magic != DGAP_CHANNEL_MAGIC) | |
cf42c34d | 3859 | return; |
a6792a3e MH |
3860 | |
3861 | bd = ch->ch_bd; | |
3862 | if (!bd || bd->magic != DGAP_BOARD_MAGIC) | |
3863 | return; | |
3864 | ||
a6792a3e MH |
3865 | DGAP_LOCK(bd->bd_lock, lock_flags); |
3866 | DGAP_LOCK(ch->ch_lock, lock_flags2); | |
3867 | ||
3868 | ch->ch_flags &= ~CH_STOP; | |
3869 | head = readw(&(ch->ch_bs->tx_head)); | |
3870 | dgap_cmdw(ch, FLUSHTX, (u16) head, 0); | |
3871 | dgap_cmdw(ch, RESUMETX, 0, 0); | |
3872 | if (ch->ch_tun.un_flags & (UN_LOW|UN_EMPTY)) { | |
3873 | ch->ch_tun.un_flags &= ~(UN_LOW|UN_EMPTY); | |
3874 | wake_up_interruptible(&ch->ch_tun.un_flags_wait); | |
3875 | } | |
3876 | if (ch->ch_pun.un_flags & (UN_LOW|UN_EMPTY)) { | |
3877 | ch->ch_pun.un_flags &= ~(UN_LOW|UN_EMPTY); | |
3878 | wake_up_interruptible(&ch->ch_pun.un_flags_wait); | |
3879 | } | |
3880 | ||
3881 | DGAP_UNLOCK(ch->ch_lock, lock_flags2); | |
3882 | DGAP_UNLOCK(bd->bd_lock, lock_flags); | |
3883 | if (waitqueue_active(&tty->write_wait)) | |
3884 | wake_up_interruptible(&tty->write_wait); | |
3885 | tty_wakeup(tty); | |
a6792a3e MH |
3886 | } |
3887 | ||
a6792a3e MH |
3888 | /***************************************************************************** |
3889 | * | |
3890 | * The IOCTL function and all of its helpers | |
3891 | * | |
3892 | *****************************************************************************/ | |
3893 | ||
3894 | /* | |
3895 | * dgap_tty_ioctl() | |
3896 | * | |
3897 | * The usual assortment of ioctl's | |
3898 | */ | |
3899 | static int dgap_tty_ioctl(struct tty_struct *tty, unsigned int cmd, | |
3900 | unsigned long arg) | |
3901 | { | |
3902 | struct board_t *bd; | |
3903 | struct channel_t *ch; | |
3904 | struct un_t *un; | |
3905 | int rc; | |
3906 | u16 head = 0; | |
3907 | ulong lock_flags = 0; | |
3908 | ulong lock_flags2 = 0; | |
3909 | void __user *uarg = (void __user *) arg; | |
3910 | ||
3911 | if (!tty || tty->magic != TTY_MAGIC) | |
cf42c34d | 3912 | return -ENODEV; |
a6792a3e MH |
3913 | |
3914 | un = tty->driver_data; | |
3915 | if (!un || un->magic != DGAP_UNIT_MAGIC) | |
cf42c34d | 3916 | return -ENODEV; |
a6792a3e MH |
3917 | |
3918 | ch = un->un_ch; | |
3919 | if (!ch || ch->magic != DGAP_CHANNEL_MAGIC) | |
cf42c34d | 3920 | return -ENODEV; |
a6792a3e MH |
3921 | |
3922 | bd = ch->ch_bd; | |
3923 | if (!bd || bd->magic != DGAP_BOARD_MAGIC) | |
cf42c34d | 3924 | return -ENODEV; |
a6792a3e | 3925 | |
a6792a3e MH |
3926 | DGAP_LOCK(bd->bd_lock, lock_flags); |
3927 | DGAP_LOCK(ch->ch_lock, lock_flags2); | |
3928 | ||
3929 | if (un->un_open_count <= 0) { | |
a6792a3e MH |
3930 | DGAP_UNLOCK(ch->ch_lock, lock_flags2); |
3931 | DGAP_UNLOCK(bd->bd_lock, lock_flags); | |
cf42c34d | 3932 | return -EIO; |
a6792a3e MH |
3933 | } |
3934 | ||
3935 | switch (cmd) { | |
3936 | ||
3937 | /* Here are all the standard ioctl's that we MUST implement */ | |
3938 | ||
3939 | case TCSBRK: | |
3940 | /* | |
3941 | * TCSBRK is SVID version: non-zero arg --> no break | |
3942 | * this behaviour is exploited by tcdrain(). | |
3943 | * | |
3944 | * According to POSIX.1 spec (7.2.2.1.2) breaks should be | |
3945 | * between 0.25 and 0.5 seconds so we'll ask for something | |
3946 | * in the middle: 0.375 seconds. | |
3947 | */ | |
3948 | rc = tty_check_change(tty); | |
3949 | DGAP_UNLOCK(ch->ch_lock, lock_flags2); | |
3950 | DGAP_UNLOCK(bd->bd_lock, lock_flags); | |
305ec874 | 3951 | if (rc) |
cf42c34d | 3952 | return rc; |
a6792a3e MH |
3953 | |
3954 | rc = dgap_wait_for_drain(tty); | |
3955 | ||
31960c16 | 3956 | if (rc) |
cf42c34d | 3957 | return -EINTR; |
a6792a3e MH |
3958 | |
3959 | DGAP_LOCK(bd->bd_lock, lock_flags); | |
3960 | DGAP_LOCK(ch->ch_lock, lock_flags2); | |
3961 | ||
305ec874 | 3962 | if (((cmd == TCSBRK) && (!arg)) || (cmd == TCSBRKP)) |
a6792a3e | 3963 | dgap_cmdw(ch, SBREAK, (u16) SBREAK_TIME, 0); |
a6792a3e MH |
3964 | |
3965 | DGAP_UNLOCK(ch->ch_lock, lock_flags2); | |
3966 | DGAP_UNLOCK(bd->bd_lock, lock_flags); | |
3967 | ||
cf42c34d | 3968 | return 0; |
a6792a3e | 3969 | |
a6792a3e | 3970 | case TCSBRKP: |
7d6069d7 | 3971 | /* support for POSIX tcsendbreak() |
a6792a3e MH |
3972 | |
3973 | * According to POSIX.1 spec (7.2.2.1.2) breaks should be | |
3974 | * between 0.25 and 0.5 seconds so we'll ask for something | |
3975 | * in the middle: 0.375 seconds. | |
3976 | */ | |
3977 | rc = tty_check_change(tty); | |
3978 | DGAP_UNLOCK(ch->ch_lock, lock_flags2); | |
3979 | DGAP_UNLOCK(bd->bd_lock, lock_flags); | |
305ec874 | 3980 | if (rc) |
cf42c34d | 3981 | return rc; |
a6792a3e MH |
3982 | |
3983 | rc = dgap_wait_for_drain(tty); | |
31960c16 | 3984 | if (rc) |
cf42c34d | 3985 | return -EINTR; |
a6792a3e MH |
3986 | |
3987 | DGAP_LOCK(bd->bd_lock, lock_flags); | |
3988 | DGAP_LOCK(ch->ch_lock, lock_flags2); | |
3989 | ||
3990 | dgap_cmdw(ch, SBREAK, (u16) SBREAK_TIME, 0); | |
3991 | ||
3992 | DGAP_UNLOCK(ch->ch_lock, lock_flags2); | |
3993 | DGAP_UNLOCK(bd->bd_lock, lock_flags); | |
3994 | ||
cf42c34d | 3995 | return 0; |
a6792a3e | 3996 | |
7d6069d7 | 3997 | case TIOCSBRK: |
a6792a3e MH |
3998 | /* |
3999 | * FEP5 doesn't support turning on a break unconditionally. | |
4000 | * The FEP5 device will stop sending a break automatically | |
4001 | * after the specified time value that was sent when turning on | |
4002 | * the break. | |
4003 | */ | |
4004 | rc = tty_check_change(tty); | |
4005 | DGAP_UNLOCK(ch->ch_lock, lock_flags2); | |
4006 | DGAP_UNLOCK(bd->bd_lock, lock_flags); | |
305ec874 | 4007 | if (rc) |
cf42c34d | 4008 | return rc; |
a6792a3e MH |
4009 | |
4010 | rc = dgap_wait_for_drain(tty); | |
31960c16 | 4011 | if (rc) |
cf42c34d | 4012 | return -EINTR; |
a6792a3e MH |
4013 | |
4014 | DGAP_LOCK(bd->bd_lock, lock_flags); | |
4015 | DGAP_LOCK(ch->ch_lock, lock_flags2); | |
4016 | ||
4017 | dgap_cmdw(ch, SBREAK, (u16) SBREAK_TIME, 0); | |
4018 | ||
4019 | DGAP_UNLOCK(ch->ch_lock, lock_flags2); | |
4020 | DGAP_UNLOCK(bd->bd_lock, lock_flags); | |
4021 | ||
a6792a3e MH |
4022 | return 0; |
4023 | ||
7d6069d7 | 4024 | case TIOCCBRK: |
a6792a3e MH |
4025 | /* |
4026 | * FEP5 doesn't support turning off a break unconditionally. | |
4027 | * The FEP5 device will stop sending a break automatically | |
4028 | * after the specified time value that was sent when turning on | |
4029 | * the break. | |
4030 | */ | |
4031 | DGAP_UNLOCK(ch->ch_lock, lock_flags2); | |
4032 | DGAP_UNLOCK(bd->bd_lock, lock_flags); | |
4033 | return 0; | |
4034 | ||
4035 | case TIOCGSOFTCAR: | |
4036 | ||
4037 | DGAP_UNLOCK(ch->ch_lock, lock_flags2); | |
4038 | DGAP_UNLOCK(bd->bd_lock, lock_flags); | |
4039 | ||
8a2c9c44 MH |
4040 | rc = put_user(C_CLOCAL(tty) ? 1 : 0, |
4041 | (unsigned long __user *) arg); | |
cf42c34d | 4042 | return rc; |
a6792a3e MH |
4043 | |
4044 | case TIOCSSOFTCAR: | |
4045 | DGAP_UNLOCK(ch->ch_lock, lock_flags2); | |
4046 | DGAP_UNLOCK(bd->bd_lock, lock_flags); | |
4047 | ||
4048 | rc = get_user(arg, (unsigned long __user *) arg); | |
4049 | if (rc) | |
cf42c34d | 4050 | return rc; |
a6792a3e MH |
4051 | |
4052 | DGAP_LOCK(bd->bd_lock, lock_flags); | |
4053 | DGAP_LOCK(ch->ch_lock, lock_flags2); | |
8a2c9c44 MH |
4054 | tty->termios.c_cflag = ((tty->termios.c_cflag & ~CLOCAL) | |
4055 | (arg ? CLOCAL : 0)); | |
a6792a3e MH |
4056 | dgap_param(tty); |
4057 | DGAP_UNLOCK(ch->ch_lock, lock_flags2); | |
4058 | DGAP_UNLOCK(bd->bd_lock, lock_flags); | |
4059 | ||
cf42c34d | 4060 | return 0; |
a6792a3e MH |
4061 | |
4062 | case TIOCMGET: | |
4063 | DGAP_UNLOCK(ch->ch_lock, lock_flags2); | |
4064 | DGAP_UNLOCK(bd->bd_lock, lock_flags); | |
cf42c34d | 4065 | return dgap_get_modem_info(ch, uarg); |
a6792a3e MH |
4066 | |
4067 | case TIOCMBIS: | |
4068 | case TIOCMBIC: | |
4069 | case TIOCMSET: | |
4070 | DGAP_UNLOCK(ch->ch_lock, lock_flags2); | |
4071 | DGAP_UNLOCK(bd->bd_lock, lock_flags); | |
cf42c34d | 4072 | return dgap_set_modem_info(tty, cmd, uarg); |
a6792a3e MH |
4073 | |
4074 | /* | |
4075 | * Here are any additional ioctl's that we want to implement | |
4076 | */ | |
4077 | ||
4078 | case TCFLSH: | |
4079 | /* | |
4080 | * The linux tty driver doesn't have a flush | |
4081 | * input routine for the driver, assuming all backed | |
4082 | * up data is in the line disc. buffers. However, | |
4083 | * we all know that's not the case. Here, we | |
4084 | * act on the ioctl, but then lie and say we didn't | |
4085 | * so the line discipline will process the flush | |
4086 | * also. | |
4087 | */ | |
4088 | rc = tty_check_change(tty); | |
4089 | if (rc) { | |
4090 | DGAP_UNLOCK(ch->ch_lock, lock_flags2); | |
4091 | DGAP_UNLOCK(bd->bd_lock, lock_flags); | |
cf42c34d | 4092 | return rc; |
a6792a3e MH |
4093 | } |
4094 | ||
4095 | if ((arg == TCIFLUSH) || (arg == TCIOFLUSH)) { | |
4096 | if (!(un->un_type == DGAP_PRINT)) { | |
4097 | head = readw(&(ch->ch_bs->rx_head)); | |
4098 | writew(head, &(ch->ch_bs->rx_tail)); | |
4099 | writeb(0, &(ch->ch_bs->orun)); | |
4100 | } | |
4101 | } | |
4102 | ||
4103 | if ((arg == TCOFLUSH) || (arg == TCIOFLUSH)) { | |
4104 | ch->ch_flags &= ~CH_STOP; | |
4105 | head = readw(&(ch->ch_bs->tx_head)); | |
b115b024 | 4106 | dgap_cmdw(ch, FLUSHTX, (u16) head, 0); |
a6792a3e MH |
4107 | dgap_cmdw(ch, RESUMETX, 0, 0); |
4108 | if (ch->ch_tun.un_flags & (UN_LOW|UN_EMPTY)) { | |
4109 | ch->ch_tun.un_flags &= ~(UN_LOW|UN_EMPTY); | |
4110 | wake_up_interruptible(&ch->ch_tun.un_flags_wait); | |
4111 | } | |
4112 | if (ch->ch_pun.un_flags & (UN_LOW|UN_EMPTY)) { | |
4113 | ch->ch_pun.un_flags &= ~(UN_LOW|UN_EMPTY); | |
4114 | wake_up_interruptible(&ch->ch_pun.un_flags_wait); | |
4115 | } | |
4116 | if (waitqueue_active(&tty->write_wait)) | |
4117 | wake_up_interruptible(&tty->write_wait); | |
4118 | ||
4119 | /* Can't hold any locks when calling tty_wakeup! */ | |
4120 | DGAP_UNLOCK(ch->ch_lock, lock_flags2); | |
4121 | DGAP_UNLOCK(bd->bd_lock, lock_flags); | |
4122 | tty_wakeup(tty); | |
4123 | DGAP_LOCK(bd->bd_lock, lock_flags); | |
4124 | DGAP_LOCK(ch->ch_lock, lock_flags2); | |
4125 | } | |
4126 | ||
4127 | /* pretend we didn't recognize this IOCTL */ | |
4128 | DGAP_UNLOCK(ch->ch_lock, lock_flags2); | |
4129 | DGAP_UNLOCK(bd->bd_lock, lock_flags); | |
4130 | ||
cf42c34d | 4131 | return -ENOIOCTLCMD; |
a6792a3e MH |
4132 | |
4133 | case TCSETSF: | |
4134 | case TCSETSW: | |
4135 | /* | |
4136 | * The linux tty driver doesn't have a flush | |
4137 | * input routine for the driver, assuming all backed | |
4138 | * up data is in the line disc. buffers. However, | |
4139 | * we all know that's not the case. Here, we | |
4140 | * act on the ioctl, but then lie and say we didn't | |
4141 | * so the line discipline will process the flush | |
4142 | * also. | |
4143 | */ | |
4144 | if (cmd == TCSETSF) { | |
4145 | /* flush rx */ | |
4146 | ch->ch_flags &= ~CH_STOP; | |
4147 | head = readw(&(ch->ch_bs->rx_head)); | |
4148 | writew(head, &(ch->ch_bs->rx_tail)); | |
4149 | } | |
4150 | ||
4151 | /* now wait for all the output to drain */ | |
4152 | DGAP_UNLOCK(ch->ch_lock, lock_flags2); | |
4153 | DGAP_UNLOCK(bd->bd_lock, lock_flags); | |
4154 | rc = dgap_wait_for_drain(tty); | |
31960c16 | 4155 | if (rc) |
cf42c34d | 4156 | return -EINTR; |
a6792a3e MH |
4157 | |
4158 | /* pretend we didn't recognize this */ | |
cf42c34d | 4159 | return -ENOIOCTLCMD; |
a6792a3e MH |
4160 | |
4161 | case TCSETAW: | |
4162 | ||
4163 | DGAP_UNLOCK(ch->ch_lock, lock_flags2); | |
4164 | DGAP_UNLOCK(bd->bd_lock, lock_flags); | |
4165 | rc = dgap_wait_for_drain(tty); | |
31960c16 | 4166 | if (rc) |
cf42c34d | 4167 | return -EINTR; |
a6792a3e MH |
4168 | |
4169 | /* pretend we didn't recognize this */ | |
cf42c34d | 4170 | return -ENOIOCTLCMD; |
a6792a3e MH |
4171 | |
4172 | case TCXONC: | |
4173 | /* | |
4174 | * The Linux Line Discipline (LD) would do this for us if we | |
4175 | * let it, but we have the special firmware options to do this | |
4176 | * the "right way" regardless of hardware or software flow | |
4177 | * control so we'll do it outselves instead of letting the LD | |
4178 | * do it. | |
4179 | */ | |
4180 | rc = tty_check_change(tty); | |
4181 | if (rc) { | |
4182 | DGAP_UNLOCK(ch->ch_lock, lock_flags2); | |
4183 | DGAP_UNLOCK(bd->bd_lock, lock_flags); | |
cf42c34d | 4184 | return rc; |
a6792a3e MH |
4185 | } |
4186 | ||
a6792a3e MH |
4187 | switch (arg) { |
4188 | ||
4189 | case TCOON: | |
4190 | DGAP_UNLOCK(ch->ch_lock, lock_flags2); | |
4191 | DGAP_UNLOCK(bd->bd_lock, lock_flags); | |
4192 | dgap_tty_start(tty); | |
cf42c34d | 4193 | return 0; |
a6792a3e MH |
4194 | case TCOOFF: |
4195 | DGAP_UNLOCK(ch->ch_lock, lock_flags2); | |
4196 | DGAP_UNLOCK(bd->bd_lock, lock_flags); | |
4197 | dgap_tty_stop(tty); | |
cf42c34d | 4198 | return 0; |
a6792a3e MH |
4199 | case TCION: |
4200 | DGAP_UNLOCK(ch->ch_lock, lock_flags2); | |
4201 | DGAP_UNLOCK(bd->bd_lock, lock_flags); | |
4202 | /* Make the ld do it */ | |
cf42c34d | 4203 | return -ENOIOCTLCMD; |
a6792a3e MH |
4204 | case TCIOFF: |
4205 | DGAP_UNLOCK(ch->ch_lock, lock_flags2); | |
4206 | DGAP_UNLOCK(bd->bd_lock, lock_flags); | |
4207 | /* Make the ld do it */ | |
cf42c34d | 4208 | return -ENOIOCTLCMD; |
a6792a3e MH |
4209 | default: |
4210 | DGAP_UNLOCK(ch->ch_lock, lock_flags2); | |
4211 | DGAP_UNLOCK(bd->bd_lock, lock_flags); | |
cf42c34d | 4212 | return -EINVAL; |
a6792a3e MH |
4213 | } |
4214 | ||
4215 | case DIGI_GETA: | |
4216 | /* get information for ditty */ | |
4217 | DGAP_UNLOCK(ch->ch_lock, lock_flags2); | |
4218 | DGAP_UNLOCK(bd->bd_lock, lock_flags); | |
cf42c34d | 4219 | return dgap_tty_digigeta(tty, uarg); |
a6792a3e MH |
4220 | |
4221 | case DIGI_SETAW: | |
4222 | case DIGI_SETAF: | |
4223 | ||
4224 | /* set information for ditty */ | |
4225 | if (cmd == (DIGI_SETAW)) { | |
4226 | ||
4227 | DGAP_UNLOCK(ch->ch_lock, lock_flags2); | |
4228 | DGAP_UNLOCK(bd->bd_lock, lock_flags); | |
4229 | rc = dgap_wait_for_drain(tty); | |
31960c16 | 4230 | if (rc) |
cf42c34d | 4231 | return -EINTR; |
a6792a3e MH |
4232 | DGAP_LOCK(bd->bd_lock, lock_flags); |
4233 | DGAP_LOCK(ch->ch_lock, lock_flags2); | |
305ec874 | 4234 | } else |
a6792a3e | 4235 | tty_ldisc_flush(tty); |
a6792a3e MH |
4236 | /* fall thru */ |
4237 | ||
4238 | case DIGI_SETA: | |
4239 | DGAP_UNLOCK(ch->ch_lock, lock_flags2); | |
4240 | DGAP_UNLOCK(bd->bd_lock, lock_flags); | |
cf42c34d | 4241 | return dgap_tty_digiseta(tty, uarg); |
a6792a3e MH |
4242 | |
4243 | case DIGI_GEDELAY: | |
4244 | DGAP_UNLOCK(ch->ch_lock, lock_flags2); | |
4245 | DGAP_UNLOCK(bd->bd_lock, lock_flags); | |
cf42c34d | 4246 | return dgap_tty_digigetedelay(tty, uarg); |
a6792a3e MH |
4247 | |
4248 | case DIGI_SEDELAY: | |
4249 | DGAP_UNLOCK(ch->ch_lock, lock_flags2); | |
4250 | DGAP_UNLOCK(bd->bd_lock, lock_flags); | |
cf42c34d | 4251 | return dgap_tty_digisetedelay(tty, uarg); |
a6792a3e MH |
4252 | |
4253 | case DIGI_GETCUSTOMBAUD: | |
4254 | DGAP_UNLOCK(ch->ch_lock, lock_flags2); | |
4255 | DGAP_UNLOCK(bd->bd_lock, lock_flags); | |
cf42c34d | 4256 | return dgap_tty_digigetcustombaud(tty, uarg); |
a6792a3e MH |
4257 | |
4258 | case DIGI_SETCUSTOMBAUD: | |
4259 | DGAP_UNLOCK(ch->ch_lock, lock_flags2); | |
4260 | DGAP_UNLOCK(bd->bd_lock, lock_flags); | |
cf42c34d | 4261 | return dgap_tty_digisetcustombaud(tty, uarg); |
a6792a3e MH |
4262 | |
4263 | case DIGI_RESET_PORT: | |
4264 | dgap_firmware_reset_port(ch); | |
4265 | dgap_param(tty); | |
4266 | DGAP_UNLOCK(ch->ch_lock, lock_flags2); | |
4267 | DGAP_UNLOCK(bd->bd_lock, lock_flags); | |
4268 | return 0; | |
4269 | ||
4270 | default: | |
4271 | DGAP_UNLOCK(ch->ch_lock, lock_flags2); | |
4272 | DGAP_UNLOCK(bd->bd_lock, lock_flags); | |
4273 | ||
cf42c34d | 4274 | return -ENOIOCTLCMD; |
a6792a3e MH |
4275 | } |
4276 | } | |
b053bb86 | 4277 | |
b28ec88a | 4278 | static int dgap_after_config_loaded(int board) |
b053bb86 | 4279 | { |
b053bb86 | 4280 | /* |
b28ec88a | 4281 | * Initialize KME waitqueues... |
b053bb86 | 4282 | */ |
b28ec88a | 4283 | init_waitqueue_head(&(dgap_Board[board]->kme_wait)); |
b053bb86 | 4284 | |
b28ec88a MH |
4285 | /* |
4286 | * allocate flip buffer for board. | |
4287 | */ | |
4288 | dgap_Board[board]->flipbuf = kmalloc(MYFLIPLEN, GFP_ATOMIC); | |
4289 | if (!dgap_Board[board]->flipbuf) | |
4290 | return -ENOMEM; | |
b053bb86 | 4291 | |
b28ec88a MH |
4292 | dgap_Board[board]->flipflagbuf = kmalloc(MYFLIPLEN, GFP_ATOMIC); |
4293 | if (!dgap_Board[board]->flipflagbuf) { | |
4294 | kfree(dgap_Board[board]->flipbuf); | |
4295 | return -ENOMEM; | |
b053bb86 MH |
4296 | } |
4297 | ||
b28ec88a | 4298 | return 0; |
b053bb86 MH |
4299 | } |
4300 | ||
b28ec88a MH |
4301 | /* |
4302 | * Create pr and tty device entries | |
4303 | */ | |
6c8b84ef | 4304 | static int dgap_tty_register_ports(struct board_t *brd) |
b053bb86 | 4305 | { |
b28ec88a | 4306 | struct channel_t *ch; |
6c8b84ef MH |
4307 | int i; |
4308 | ||
4309 | brd->SerialPorts = kcalloc(brd->nasync, sizeof(*brd->SerialPorts), | |
4310 | GFP_KERNEL); | |
4311 | if (brd->SerialPorts == NULL) | |
4312 | return -ENOMEM; | |
4313 | for (i = 0; i < brd->nasync; i++) | |
4314 | tty_port_init(&brd->SerialPorts[i]); | |
4315 | ||
4316 | brd->PrinterPorts = kcalloc(brd->nasync, sizeof(*brd->PrinterPorts), | |
4317 | GFP_KERNEL); | |
4318 | if (brd->PrinterPorts == NULL) { | |
4319 | kfree(brd->SerialPorts); | |
4320 | return -ENOMEM; | |
4321 | } | |
4322 | for (i = 0; i < brd->nasync; i++) | |
4323 | tty_port_init(&brd->PrinterPorts[i]); | |
b053bb86 | 4324 | |
b28ec88a | 4325 | ch = brd->channels[0]; |
6c8b84ef MH |
4326 | for (i = 0; i < brd->nasync; i++, ch = brd->channels[i]) { |
4327 | ||
b28ec88a | 4328 | struct device *classp; |
6c8b84ef MH |
4329 | |
4330 | classp = tty_port_register_device(&brd->SerialPorts[i], | |
4331 | brd->SerialDriver, | |
4332 | brd->firstminor + i, NULL); | |
4333 | ||
b28ec88a | 4334 | dgap_create_tty_sysfs(&ch->ch_tun, classp); |
6c8b84ef MH |
4335 | ch->ch_tun.un_sysfs = classp; |
4336 | ||
4337 | classp = tty_port_register_device(&brd->PrinterPorts[i], | |
4338 | brd->PrintDriver, | |
4339 | brd->firstminor + i, NULL); | |
b28ec88a | 4340 | |
b28ec88a | 4341 | dgap_create_tty_sysfs(&ch->ch_pun, classp); |
6c8b84ef | 4342 | ch->ch_pun.un_sysfs = classp; |
b28ec88a MH |
4343 | } |
4344 | dgap_create_ports_sysfiles(brd); | |
6c8b84ef MH |
4345 | |
4346 | return 0; | |
b053bb86 MH |
4347 | } |
4348 | ||
b053bb86 MH |
4349 | /* |
4350 | * Copies the BIOS code from the user to the board, | |
4351 | * and starts the BIOS running. | |
4352 | */ | |
fe0ef8e6 | 4353 | static void dgap_do_bios_load(struct board_t *brd, uchar __user *ubios, int len) |
b053bb86 MH |
4354 | { |
4355 | uchar *addr; | |
4356 | uint offset; | |
4357 | int i; | |
4358 | ||
4359 | if (!brd || (brd->magic != DGAP_BOARD_MAGIC) || !brd->re_map_membase) | |
4360 | return; | |
4361 | ||
b053bb86 MH |
4362 | addr = brd->re_map_membase; |
4363 | ||
4364 | /* | |
4365 | * clear POST area | |
4366 | */ | |
4367 | for (i = 0; i < 16; i++) | |
4368 | writeb(0, addr + POSTAREA + i); | |
4369 | ||
4370 | /* | |
4371 | * Download bios | |
4372 | */ | |
4373 | offset = 0x1000; | |
b28ec88a | 4374 | memcpy_toio(addr + offset, ubios, len); |
b053bb86 MH |
4375 | |
4376 | writel(0x0bf00401, addr); | |
4377 | writel(0, (addr + 4)); | |
4378 | ||
4379 | /* Clear the reset, and change states. */ | |
4380 | writeb(FEPCLR, brd->re_map_port); | |
b053bb86 MH |
4381 | } |
4382 | ||
b053bb86 MH |
4383 | /* |
4384 | * Checks to see if the BIOS completed running on the card. | |
4385 | */ | |
4386 | static void dgap_do_wait_for_bios(struct board_t *brd) | |
4387 | { | |
4388 | uchar *addr; | |
4389 | u16 word; | |
b28ec88a MH |
4390 | u16 err1; |
4391 | u16 err2; | |
b053bb86 MH |
4392 | |
4393 | if (!brd || (brd->magic != DGAP_BOARD_MAGIC) || !brd->re_map_membase) | |
4394 | return; | |
4395 | ||
4396 | addr = brd->re_map_membase; | |
4397 | word = readw(addr + POSTAREA); | |
4398 | ||
b28ec88a MH |
4399 | /* |
4400 | * It can take 5-6 seconds for a board to | |
4401 | * pass the bios self test and post results. | |
4402 | * Give it 10 seconds. | |
4403 | */ | |
4404 | brd->wait_for_bios = 0; | |
4405 | while (brd->wait_for_bios < 1000) { | |
4406 | /* Check to see if BIOS thinks board is good. (GD). */ | |
4407 | if (word == *(u16 *) "GD") { | |
b28ec88a MH |
4408 | brd->state = FINISHED_BIOS_LOAD; |
4409 | return; | |
4410 | } | |
4411 | msleep_interruptible(10); | |
4412 | brd->wait_for_bios++; | |
4413 | word = readw(addr + POSTAREA); | |
4414 | } | |
4415 | ||
4416 | /* Gave up on board after too long of time taken */ | |
4417 | err1 = readw(addr + SEQUENCE); | |
4418 | err2 = readw(addr + ERROR); | |
31960c16 MH |
4419 | pr_warn("dgap: %s failed diagnostics. Error #(%x,%x).\n", |
4420 | brd->name, err1, err2); | |
b28ec88a MH |
4421 | brd->state = BOARD_FAILED; |
4422 | brd->dpastatus = BD_NOBIOS; | |
b053bb86 MH |
4423 | } |
4424 | ||
b053bb86 MH |
4425 | /* |
4426 | * Copies the FEP code from the user to the board, | |
4427 | * and starts the FEP running. | |
4428 | */ | |
b28ec88a | 4429 | static void dgap_do_fep_load(struct board_t *brd, uchar *ufep, int len) |
b053bb86 MH |
4430 | { |
4431 | uchar *addr; | |
4432 | uint offset; | |
4433 | ||
4434 | if (!brd || (brd->magic != DGAP_BOARD_MAGIC) || !brd->re_map_membase) | |
4435 | return; | |
4436 | ||
4437 | addr = brd->re_map_membase; | |
4438 | ||
b053bb86 MH |
4439 | /* |
4440 | * Download FEP | |
4441 | */ | |
4442 | offset = 0x1000; | |
b28ec88a | 4443 | memcpy_toio(addr + offset, ufep, len); |
b053bb86 MH |
4444 | |
4445 | /* | |
4446 | * If board is a concentrator product, we need to give | |
4447 | * it its config string describing how the concentrators look. | |
4448 | */ | |
4449 | if ((brd->type == PCX) || (brd->type == PEPC)) { | |
4450 | uchar string[100]; | |
4451 | uchar *config, *xconfig; | |
4452 | int i = 0; | |
4453 | ||
4454 | xconfig = dgap_create_config_string(brd, string); | |
4455 | ||
4456 | /* Write string to board memory */ | |
4457 | config = addr + CONFIG; | |
4458 | for (; i < CONFIGSIZE; i++, config++, xconfig++) { | |
4459 | writeb(*xconfig, config); | |
4460 | if ((*xconfig & 0xff) == 0xff) | |
4461 | break; | |
4462 | } | |
4463 | } | |
4464 | ||
4465 | writel(0xbfc01004, (addr + 0xc34)); | |
4466 | writel(0x3, (addr + 0xc30)); | |
4467 | ||
b053bb86 MH |
4468 | } |
4469 | ||
b053bb86 MH |
4470 | /* |
4471 | * Waits for the FEP to report thats its ready for us to use. | |
4472 | */ | |
4473 | static void dgap_do_wait_for_fep(struct board_t *brd) | |
4474 | { | |
4475 | uchar *addr; | |
4476 | u16 word; | |
b28ec88a MH |
4477 | u16 err1; |
4478 | u16 err2; | |
b053bb86 MH |
4479 | |
4480 | if (!brd || (brd->magic != DGAP_BOARD_MAGIC) || !brd->re_map_membase) | |
4481 | return; | |
4482 | ||
4483 | addr = brd->re_map_membase; | |
b053bb86 MH |
4484 | word = readw(addr + FEPSTAT); |
4485 | ||
b28ec88a MH |
4486 | /* |
4487 | * It can take 2-3 seconds for the FEP to | |
4488 | * be up and running. Give it 5 secs. | |
4489 | */ | |
4490 | brd->wait_for_fep = 0; | |
4491 | while (brd->wait_for_fep < 500) { | |
4492 | /* Check to see if FEP is up and running now. */ | |
4493 | if (word == *(u16 *) "OS") { | |
4494 | brd->state = FINISHED_FEP_LOAD; | |
4495 | /* | |
4496 | * Check to see if the board can support FEP5+ commands. | |
4497 | */ | |
4498 | word = readw(addr + FEP5_PLUS); | |
4499 | if (word == *(u16 *) "5A") | |
4500 | brd->bd_flags |= BD_FEP5PLUS; | |
b053bb86 | 4501 | |
b28ec88a | 4502 | return; |
b053bb86 | 4503 | } |
b28ec88a MH |
4504 | msleep_interruptible(10); |
4505 | brd->wait_for_fep++; | |
4506 | word = readw(addr + FEPSTAT); | |
b053bb86 MH |
4507 | } |
4508 | ||
b28ec88a MH |
4509 | /* Gave up on board after too long of time taken */ |
4510 | err1 = readw(addr + SEQUENCE); | |
4511 | err2 = readw(addr + ERROR); | |
31960c16 MH |
4512 | pr_warn("dgap: FEPOS for %s not functioning. Error #(%x,%x).\n", |
4513 | brd->name, err1, err2); | |
b28ec88a MH |
4514 | brd->state = BOARD_FAILED; |
4515 | brd->dpastatus = BD_NOFEP; | |
b053bb86 MH |
4516 | } |
4517 | ||
b053bb86 MH |
4518 | /* |
4519 | * Physically forces the FEP5 card to reset itself. | |
4520 | */ | |
4521 | static void dgap_do_reset_board(struct board_t *brd) | |
4522 | { | |
4523 | uchar check; | |
4524 | u32 check1; | |
4525 | u32 check2; | |
4526 | int i = 0; | |
4527 | ||
305ec874 MH |
4528 | if (!brd || (brd->magic != DGAP_BOARD_MAGIC) || |
4529 | !brd->re_map_membase || !brd->re_map_port) | |
b053bb86 | 4530 | return; |
b053bb86 | 4531 | |
b053bb86 MH |
4532 | /* FEPRST does not vary among supported boards */ |
4533 | writeb(FEPRST, brd->re_map_port); | |
4534 | ||
4535 | for (i = 0; i <= 1000; i++) { | |
4536 | check = readb(brd->re_map_port) & 0xe; | |
4537 | if (check == FEPRST) | |
4538 | break; | |
4539 | udelay(10); | |
4540 | ||
4541 | } | |
4542 | if (i > 1000) { | |
31960c16 | 4543 | pr_warn("dgap: Board not resetting... Failing board.\n"); |
b053bb86 MH |
4544 | brd->state = BOARD_FAILED; |
4545 | brd->dpastatus = BD_NOFEP; | |
31960c16 | 4546 | return; |
b053bb86 MH |
4547 | } |
4548 | ||
4549 | /* | |
4550 | * Make sure there really is memory out there. | |
4551 | */ | |
4552 | writel(0xa55a3cc3, (brd->re_map_membase + LOWMEM)); | |
4553 | writel(0x5aa5c33c, (brd->re_map_membase + HIGHMEM)); | |
4554 | check1 = readl(brd->re_map_membase + LOWMEM); | |
4555 | check2 = readl(brd->re_map_membase + HIGHMEM); | |
4556 | ||
4557 | if ((check1 != 0xa55a3cc3) || (check2 != 0x5aa5c33c)) { | |
31960c16 MH |
4558 | pr_warn("dgap: No memory at %p for board.\n", |
4559 | brd->re_map_membase); | |
b053bb86 MH |
4560 | brd->state = BOARD_FAILED; |
4561 | brd->dpastatus = BD_NOFEP; | |
31960c16 | 4562 | return; |
b053bb86 MH |
4563 | } |
4564 | ||
4565 | if (brd->state != BOARD_FAILED) | |
4566 | brd->state = FINISHED_RESET; | |
b053bb86 MH |
4567 | } |
4568 | ||
b28ec88a | 4569 | #ifdef DIGI_CONCENTRATORS_SUPPORTED |
b053bb86 MH |
4570 | /* |
4571 | * Sends a concentrator image into the FEP5 board. | |
4572 | */ | |
fe0ef8e6 | 4573 | static void dgap_do_conc_load(struct board_t *brd, uchar *uaddr, int len) |
b053bb86 MH |
4574 | { |
4575 | char *vaddr; | |
4576 | u16 offset = 0; | |
4577 | struct downld_t *to_dp; | |
4578 | ||
4579 | if (!brd || (brd->magic != DGAP_BOARD_MAGIC) || !brd->re_map_membase) | |
4580 | return; | |
4581 | ||
4582 | vaddr = brd->re_map_membase; | |
4583 | ||
4584 | offset = readw((u16 *) (vaddr + DOWNREQ)); | |
4585 | to_dp = (struct downld_t *) (vaddr + (int) offset); | |
b28ec88a | 4586 | memcpy_toio(to_dp, uaddr, len); |
b053bb86 MH |
4587 | |
4588 | /* Tell card we have data for it */ | |
4589 | writew(0, vaddr + (DOWNREQ)); | |
4590 | ||
4591 | brd->conc_dl_status = NO_PENDING_CONCENTRATOR_REQUESTS; | |
4592 | } | |
b28ec88a | 4593 | #endif |
b053bb86 MH |
4594 | |
4595 | #define EXPANSION_ROM_SIZE (64 * 1024) | |
4596 | #define FEP5_ROM_MAGIC (0xFEFFFFFF) | |
4597 | ||
4598 | static void dgap_get_vpd(struct board_t *brd) | |
4599 | { | |
4600 | u32 magic; | |
4601 | u32 base_offset; | |
4602 | u16 rom_offset; | |
4603 | u16 vpd_offset; | |
4604 | u16 image_length; | |
4605 | u16 i; | |
4606 | uchar byte1; | |
4607 | uchar byte2; | |
4608 | ||
4609 | /* | |
4610 | * Poke the magic number at the PCI Rom Address location. | |
4611 | * If VPD is supported, the value read from that address | |
4612 | * will be non-zero. | |
4613 | */ | |
4614 | magic = FEP5_ROM_MAGIC; | |
4615 | pci_write_config_dword(brd->pdev, PCI_ROM_ADDRESS, magic); | |
4616 | pci_read_config_dword(brd->pdev, PCI_ROM_ADDRESS, &magic); | |
4617 | ||
4618 | /* VPD not supported, bail */ | |
4619 | if (!magic) | |
4620 | return; | |
4621 | ||
4622 | /* | |
4623 | * To get to the OTPROM memory, we have to send the boards base | |
4624 | * address or'ed with 1 into the PCI Rom Address location. | |
4625 | */ | |
4626 | magic = brd->membase | 0x01; | |
4627 | pci_write_config_dword(brd->pdev, PCI_ROM_ADDRESS, magic); | |
4628 | pci_read_config_dword(brd->pdev, PCI_ROM_ADDRESS, &magic); | |
4629 | ||
4630 | byte1 = readb(brd->re_map_membase); | |
4631 | byte2 = readb(brd->re_map_membase + 1); | |
4632 | ||
4633 | /* | |
4634 | * If the board correctly swapped to the OTPROM memory, | |
4635 | * the first 2 bytes (header) should be 0x55, 0xAA | |
4636 | */ | |
4637 | if (byte1 == 0x55 && byte2 == 0xAA) { | |
4638 | ||
4639 | base_offset = 0; | |
4640 | ||
4641 | /* | |
4642 | * We have to run through all the OTPROM memory looking | |
4643 | * for the VPD offset. | |
4644 | */ | |
4645 | while (base_offset <= EXPANSION_ROM_SIZE) { | |
4646 | ||
4647 | /* | |
4648 | * Lots of magic numbers here. | |
4649 | * | |
8a2c9c44 MH |
4650 | * The VPD offset is located inside the ROM Data |
4651 | * Structure. | |
4652 | * | |
b053bb86 MH |
4653 | * We also have to remember the length of each |
4654 | * ROM Data Structure, so we can "hop" to the next | |
4655 | * entry if the VPD isn't in the current | |
4656 | * ROM Data Structure. | |
4657 | */ | |
8a2c9c44 MH |
4658 | rom_offset = readw(brd->re_map_membase + |
4659 | base_offset + 0x18); | |
4660 | image_length = readw(brd->re_map_membase + | |
4661 | rom_offset + 0x10) * 512; | |
4662 | vpd_offset = readw(brd->re_map_membase + | |
4663 | rom_offset + 0x08); | |
b053bb86 MH |
4664 | |
4665 | /* Found the VPD entry */ | |
4666 | if (vpd_offset) | |
4667 | break; | |
4668 | ||
4669 | /* We didn't find a VPD entry, go to next ROM entry. */ | |
4670 | base_offset += image_length; | |
4671 | ||
4672 | byte1 = readb(brd->re_map_membase + base_offset); | |
4673 | byte2 = readb(brd->re_map_membase + base_offset + 1); | |
4674 | ||
4675 | /* | |
4676 | * If the new ROM offset doesn't have 0x55, 0xAA | |
4677 | * as its header, we have run out of ROM. | |
4678 | */ | |
4679 | if (byte1 != 0x55 || byte2 != 0xAA) | |
4680 | break; | |
4681 | } | |
4682 | ||
4683 | /* | |
4684 | * If we have a VPD offset, then mark the board | |
4685 | * as having a valid VPD, and copy VPDSIZE (512) bytes of | |
4686 | * that VPD to the buffer we have in our board structure. | |
4687 | */ | |
4688 | if (vpd_offset) { | |
4689 | brd->bd_flags |= BD_HAS_VPD; | |
8a2c9c44 MH |
4690 | for (i = 0; i < VPDSIZE; i++) { |
4691 | brd->vpd[i] = readb(brd->re_map_membase + | |
4692 | vpd_offset + i); | |
4693 | } | |
b053bb86 MH |
4694 | } |
4695 | } | |
4696 | ||
4697 | /* | |
4698 | * We MUST poke the magic number at the PCI Rom Address location again. | |
4699 | * This makes the card report the regular board memory back to us, | |
4700 | * rather than the OTPROM memory. | |
4701 | */ | |
4702 | magic = FEP5_ROM_MAGIC; | |
4703 | pci_write_config_dword(brd->pdev, PCI_ROM_ADDRESS, magic); | |
4704 | } | |
4705 | ||
b053bb86 MH |
4706 | /* |
4707 | * Our board poller function. | |
4708 | */ | |
fe0ef8e6 | 4709 | static void dgap_poll_tasklet(unsigned long data) |
b053bb86 MH |
4710 | { |
4711 | struct board_t *bd = (struct board_t *) data; | |
4712 | ulong lock_flags; | |
4713 | ulong lock_flags2; | |
4714 | char *vaddr; | |
4715 | u16 head, tail; | |
b053bb86 | 4716 | |
31960c16 | 4717 | if (!bd || (bd->magic != DGAP_BOARD_MAGIC)) |
b053bb86 | 4718 | return; |
b053bb86 MH |
4719 | |
4720 | if (bd->inhibit_poller) | |
4721 | return; | |
4722 | ||
4723 | DGAP_LOCK(bd->bd_lock, lock_flags); | |
4724 | ||
4725 | vaddr = bd->re_map_membase; | |
4726 | ||
4727 | /* | |
4728 | * If board is ready, parse deeper to see if there is anything to do. | |
4729 | */ | |
4730 | if (bd->state == BOARD_READY) { | |
4731 | ||
4732 | struct ev_t *eaddr = NULL; | |
4733 | ||
4734 | if (!bd->re_map_membase) { | |
4735 | DGAP_UNLOCK(bd->bd_lock, lock_flags); | |
4736 | return; | |
4737 | } | |
4738 | if (!bd->re_map_port) { | |
4739 | DGAP_UNLOCK(bd->bd_lock, lock_flags); | |
4740 | return; | |
4741 | } | |
4742 | ||
305ec874 | 4743 | if (!bd->nasync) |
b053bb86 | 4744 | goto out; |
b053bb86 | 4745 | |
b053bb86 MH |
4746 | eaddr = (struct ev_t *) (vaddr + EVBUF); |
4747 | ||
4748 | /* Get our head and tail */ | |
4749 | head = readw(&(eaddr->ev_head)); | |
4750 | tail = readw(&(eaddr->ev_tail)); | |
4751 | ||
4752 | /* | |
4753 | * If there is an event pending. Go service it. | |
4754 | */ | |
4755 | if (head != tail) { | |
4756 | DGAP_UNLOCK(bd->bd_lock, lock_flags); | |
4757 | dgap_event(bd); | |
4758 | DGAP_LOCK(bd->bd_lock, lock_flags); | |
4759 | } | |
4760 | ||
4761 | out: | |
4762 | /* | |
4763 | * If board is doing interrupts, ACK the interrupt. | |
4764 | */ | |
305ec874 | 4765 | if (bd && bd->intr_running) |
b053bb86 | 4766 | readb(bd->re_map_port + 2); |
b053bb86 MH |
4767 | |
4768 | DGAP_UNLOCK(bd->bd_lock, lock_flags); | |
4769 | return; | |
4770 | } | |
4771 | ||
4772 | /* Our state machine to get the board up and running */ | |
4773 | ||
4774 | /* Reset board */ | |
4775 | if (bd->state == NEED_RESET) { | |
4776 | ||
4777 | /* Get VPD info */ | |
4778 | dgap_get_vpd(bd); | |
4779 | ||
4780 | dgap_do_reset_board(bd); | |
4781 | } | |
4782 | ||
4783 | /* Move to next state */ | |
305ec874 | 4784 | if (bd->state == FINISHED_RESET) |
b053bb86 | 4785 | bd->state = NEED_CONFIG; |
b053bb86 MH |
4786 | |
4787 | if (bd->state == NEED_CONFIG) { | |
4788 | /* | |
4789 | * Match this board to a config the user created for us. | |
4790 | */ | |
8a2c9c44 MH |
4791 | bd->bd_config = dgap_find_config(bd->type, bd->pci_bus, |
4792 | bd->pci_slot); | |
b053bb86 MH |
4793 | |
4794 | /* | |
4795 | * Because the 4 port Xr products share the same PCI ID | |
4796 | * as the 8 port Xr products, if we receive a NULL config | |
4797 | * back, and this is a PAPORT8 board, retry with a | |
4798 | * PAPORT4 attempt as well. | |
4799 | */ | |
305ec874 | 4800 | if (bd->type == PAPORT8 && !bd->bd_config) |
8a2c9c44 MH |
4801 | bd->bd_config = dgap_find_config(PAPORT4, bd->pci_bus, |
4802 | bd->pci_slot); | |
b053bb86 MH |
4803 | |
4804 | /* | |
4805 | * Register the ttys (if any) into the kernel. | |
4806 | */ | |
305ec874 | 4807 | if (bd->bd_config) |
b053bb86 | 4808 | bd->state = FINISHED_CONFIG; |
305ec874 | 4809 | else |
b053bb86 | 4810 | bd->state = CONFIG_NOT_FOUND; |
b053bb86 MH |
4811 | } |
4812 | ||
4813 | /* Move to next state */ | |
305ec874 | 4814 | if (bd->state == FINISHED_CONFIG) |
b053bb86 | 4815 | bd->state = NEED_DEVICE_CREATION; |
b053bb86 MH |
4816 | |
4817 | /* Move to next state */ | |
4818 | if (bd->state == NEED_DEVICE_CREATION) { | |
4819 | /* | |
4820 | * Signal downloader, its got some work to do. | |
4821 | */ | |
4822 | DGAP_LOCK(dgap_dl_lock, lock_flags2); | |
4823 | if (dgap_dl_action != 1) { | |
4824 | dgap_dl_action = 1; | |
4825 | wake_up_interruptible(&dgap_dl_wait); | |
4826 | } | |
4827 | DGAP_UNLOCK(dgap_dl_lock, lock_flags2); | |
4828 | } | |
4829 | ||
4830 | /* Move to next state */ | |
305ec874 | 4831 | if (bd->state == FINISHED_DEVICE_CREATION) |
b053bb86 | 4832 | bd->state = NEED_BIOS_LOAD; |
b053bb86 MH |
4833 | |
4834 | /* Move to next state */ | |
4835 | if (bd->state == NEED_BIOS_LOAD) { | |
4836 | /* | |
4837 | * Signal downloader, its got some work to do. | |
4838 | */ | |
4839 | DGAP_LOCK(dgap_dl_lock, lock_flags2); | |
4840 | if (dgap_dl_action != 1) { | |
4841 | dgap_dl_action = 1; | |
4842 | wake_up_interruptible(&dgap_dl_wait); | |
4843 | } | |
4844 | DGAP_UNLOCK(dgap_dl_lock, lock_flags2); | |
4845 | } | |
4846 | ||
4847 | /* Wait for BIOS to test board... */ | |
305ec874 | 4848 | if (bd->state == WAIT_BIOS_LOAD) |
b053bb86 | 4849 | dgap_do_wait_for_bios(bd); |
b053bb86 MH |
4850 | |
4851 | /* Move to next state */ | |
4852 | if (bd->state == FINISHED_BIOS_LOAD) { | |
4853 | bd->state = NEED_FEP_LOAD; | |
4854 | ||
4855 | /* | |
4856 | * Signal downloader, its got some work to do. | |
4857 | */ | |
4858 | DGAP_LOCK(dgap_dl_lock, lock_flags2); | |
4859 | if (dgap_dl_action != 1) { | |
4860 | dgap_dl_action = 1; | |
4861 | wake_up_interruptible(&dgap_dl_wait); | |
4862 | } | |
4863 | DGAP_UNLOCK(dgap_dl_lock, lock_flags2); | |
4864 | } | |
4865 | ||
4866 | /* Wait for FEP to load on board... */ | |
305ec874 | 4867 | if (bd->state == WAIT_FEP_LOAD) |
b053bb86 | 4868 | dgap_do_wait_for_fep(bd); |
b053bb86 MH |
4869 | |
4870 | /* Move to next state */ | |
4871 | if (bd->state == FINISHED_FEP_LOAD) { | |
4872 | ||
4873 | /* | |
4874 | * Do tty device initialization. | |
4875 | */ | |
4876 | int rc = dgap_tty_init(bd); | |
4877 | ||
4878 | if (rc < 0) { | |
4879 | dgap_tty_uninit(bd); | |
b053bb86 MH |
4880 | bd->state = BOARD_FAILED; |
4881 | bd->dpastatus = BD_NOFEP; | |
305ec874 | 4882 | } else { |
b053bb86 MH |
4883 | bd->state = NEED_PROC_CREATION; |
4884 | ||
4885 | /* | |
4886 | * Signal downloader, its got some work to do. | |
4887 | */ | |
4888 | DGAP_LOCK(dgap_dl_lock, lock_flags2); | |
4889 | if (dgap_dl_action != 1) { | |
4890 | dgap_dl_action = 1; | |
4891 | wake_up_interruptible(&dgap_dl_wait); | |
4892 | } | |
4893 | DGAP_UNLOCK(dgap_dl_lock, lock_flags2); | |
4894 | } | |
4895 | } | |
4896 | ||
4897 | /* Move to next state */ | |
4898 | if (bd->state == FINISHED_PROC_CREATION) { | |
4899 | ||
4900 | bd->state = BOARD_READY; | |
4901 | bd->dpastatus = BD_RUNNING; | |
4902 | ||
4903 | /* | |
4904 | * If user requested the board to run in interrupt mode, | |
4905 | * go and set it up on the board. | |
4906 | */ | |
4907 | if (bd->intr_used) { | |
4908 | writew(1, (bd->re_map_membase + ENABLE_INTR)); | |
4909 | /* | |
4910 | * Tell the board to poll the UARTS as fast as possible. | |
4911 | */ | |
4912 | writew(FEPPOLL_MIN, (bd->re_map_membase + FEPPOLL)); | |
4913 | bd->intr_running = 1; | |
4914 | } | |
4915 | ||
4916 | /* Wake up anyone waiting for board state to change to ready */ | |
4917 | wake_up_interruptible(&bd->state_wait); | |
4918 | } | |
4919 | ||
4920 | DGAP_UNLOCK(bd->bd_lock, lock_flags); | |
4921 | } | |
4922 | ||
b053bb86 MH |
4923 | /*======================================================================= |
4924 | * | |
4925 | * dgap_cmdb - Sends a 2 byte command to the FEP. | |
4926 | * | |
4927 | * ch - Pointer to channel structure. | |
4928 | * cmd - Command to be sent. | |
4929 | * byte1 - Integer containing first byte to be sent. | |
4930 | * byte2 - Integer containing second byte to be sent. | |
4931 | * ncmds - Wait until ncmds or fewer cmds are left | |
4932 | * in the cmd buffer before returning. | |
4933 | * | |
4934 | *=======================================================================*/ | |
8a2c9c44 MH |
4935 | static void dgap_cmdb(struct channel_t *ch, uchar cmd, uchar byte1, |
4936 | uchar byte2, uint ncmds) | |
b053bb86 MH |
4937 | { |
4938 | char *vaddr = NULL; | |
4939 | struct cm_t *cm_addr = NULL; | |
4940 | uint count; | |
4941 | uint n; | |
4942 | u16 head; | |
4943 | u16 tail; | |
4944 | ||
4945 | if (!ch || ch->magic != DGAP_CHANNEL_MAGIC) | |
4946 | return; | |
4947 | ||
4948 | /* | |
4949 | * Check if board is still alive. | |
4950 | */ | |
31960c16 | 4951 | if (ch->ch_bd->state == BOARD_FAILED) |
b053bb86 | 4952 | return; |
b053bb86 MH |
4953 | |
4954 | /* | |
4955 | * Make sure the pointers are in range before | |
4956 | * writing to the FEP memory. | |
4957 | */ | |
4958 | vaddr = ch->ch_bd->re_map_membase; | |
4959 | ||
4960 | if (!vaddr) | |
4961 | return; | |
4962 | ||
4963 | cm_addr = (struct cm_t *) (vaddr + CMDBUF); | |
4964 | head = readw(&(cm_addr->cm_head)); | |
4965 | ||
4966 | /* | |
4967 | * Forget it if pointers out of range. | |
4968 | */ | |
4969 | if (head >= (CMDMAX - CMDSTART) || (head & 03)) { | |
b053bb86 MH |
4970 | ch->ch_bd->state = BOARD_FAILED; |
4971 | return; | |
4972 | } | |
4973 | ||
4974 | /* | |
4975 | * Put the data in the circular command buffer. | |
4976 | */ | |
4977 | writeb(cmd, (char *) (vaddr + head + CMDSTART + 0)); | |
4978 | writeb((uchar) ch->ch_portnum, (char *) (vaddr + head + CMDSTART + 1)); | |
4979 | writeb(byte1, (char *) (vaddr + head + CMDSTART + 2)); | |
4980 | writeb(byte2, (char *) (vaddr + head + CMDSTART + 3)); | |
4981 | ||
4982 | head = (head + 4) & (CMDMAX - CMDSTART - 4); | |
4983 | ||
4984 | writew(head, &(cm_addr->cm_head)); | |
4985 | ||
4986 | /* | |
4987 | * Wait if necessary before updating the head | |
4988 | * pointer to limit the number of outstanding | |
4989 | * commands to the FEP. If the time spent waiting | |
4990 | * is outlandish, declare the FEP dead. | |
4991 | */ | |
4992 | for (count = dgap_count ;;) { | |
4993 | ||
4994 | head = readw(&(cm_addr->cm_head)); | |
4995 | tail = readw(&(cm_addr->cm_tail)); | |
4996 | ||
4997 | n = (head - tail) & (CMDMAX - CMDSTART - 4); | |
4998 | ||
4999 | if (n <= ncmds * sizeof(struct cm_t)) | |
5000 | break; | |
5001 | ||
5002 | if (--count == 0) { | |
b053bb86 MH |
5003 | ch->ch_bd->state = BOARD_FAILED; |
5004 | return; | |
5005 | } | |
5006 | udelay(10); | |
5007 | } | |
5008 | } | |
5009 | ||
b053bb86 MH |
5010 | /*======================================================================= |
5011 | * | |
5012 | * dgap_cmdw - Sends a 1 word command to the FEP. | |
5013 | * | |
5014 | * ch - Pointer to channel structure. | |
5015 | * cmd - Command to be sent. | |
5016 | * word - Integer containing word to be sent. | |
5017 | * ncmds - Wait until ncmds or fewer cmds are left | |
5018 | * in the cmd buffer before returning. | |
5019 | * | |
5020 | *=======================================================================*/ | |
fe0ef8e6 | 5021 | static void dgap_cmdw(struct channel_t *ch, uchar cmd, u16 word, uint ncmds) |
b053bb86 MH |
5022 | { |
5023 | char *vaddr = NULL; | |
5024 | struct cm_t *cm_addr = NULL; | |
5025 | uint count; | |
5026 | uint n; | |
5027 | u16 head; | |
5028 | u16 tail; | |
5029 | ||
5030 | if (!ch || ch->magic != DGAP_CHANNEL_MAGIC) | |
5031 | return; | |
5032 | ||
5033 | /* | |
5034 | * Check if board is still alive. | |
5035 | */ | |
31960c16 | 5036 | if (ch->ch_bd->state == BOARD_FAILED) |
b053bb86 | 5037 | return; |
b053bb86 MH |
5038 | |
5039 | /* | |
5040 | * Make sure the pointers are in range before | |
5041 | * writing to the FEP memory. | |
5042 | */ | |
5043 | vaddr = ch->ch_bd->re_map_membase; | |
5044 | if (!vaddr) | |
5045 | return; | |
5046 | ||
5047 | cm_addr = (struct cm_t *) (vaddr + CMDBUF); | |
5048 | head = readw(&(cm_addr->cm_head)); | |
5049 | ||
5050 | /* | |
5051 | * Forget it if pointers out of range. | |
5052 | */ | |
5053 | if (head >= (CMDMAX - CMDSTART) || (head & 03)) { | |
b053bb86 MH |
5054 | ch->ch_bd->state = BOARD_FAILED; |
5055 | return; | |
5056 | } | |
5057 | ||
5058 | /* | |
5059 | * Put the data in the circular command buffer. | |
5060 | */ | |
5061 | writeb(cmd, (char *) (vaddr + head + CMDSTART + 0)); | |
5062 | writeb((uchar) ch->ch_portnum, (char *) (vaddr + head + CMDSTART + 1)); | |
5063 | writew((u16) word, (char *) (vaddr + head + CMDSTART + 2)); | |
5064 | ||
5065 | head = (head + 4) & (CMDMAX - CMDSTART - 4); | |
5066 | ||
5067 | writew(head, &(cm_addr->cm_head)); | |
5068 | ||
5069 | /* | |
5070 | * Wait if necessary before updating the head | |
5071 | * pointer to limit the number of outstanding | |
5072 | * commands to the FEP. If the time spent waiting | |
5073 | * is outlandish, declare the FEP dead. | |
5074 | */ | |
5075 | for (count = dgap_count ;;) { | |
5076 | ||
5077 | head = readw(&(cm_addr->cm_head)); | |
5078 | tail = readw(&(cm_addr->cm_tail)); | |
5079 | ||
5080 | n = (head - tail) & (CMDMAX - CMDSTART - 4); | |
5081 | ||
5082 | if (n <= ncmds * sizeof(struct cm_t)) | |
5083 | break; | |
5084 | ||
5085 | if (--count == 0) { | |
b053bb86 MH |
5086 | ch->ch_bd->state = BOARD_FAILED; |
5087 | return; | |
5088 | } | |
5089 | udelay(10); | |
5090 | } | |
5091 | } | |
5092 | ||
b053bb86 MH |
5093 | /*======================================================================= |
5094 | * | |
5095 | * dgap_cmdw_ext - Sends a extended word command to the FEP. | |
5096 | * | |
5097 | * ch - Pointer to channel structure. | |
5098 | * cmd - Command to be sent. | |
5099 | * word - Integer containing word to be sent. | |
5100 | * ncmds - Wait until ncmds or fewer cmds are left | |
5101 | * in the cmd buffer before returning. | |
5102 | * | |
5103 | *=======================================================================*/ | |
5104 | static void dgap_cmdw_ext(struct channel_t *ch, u16 cmd, u16 word, uint ncmds) | |
5105 | { | |
5106 | char *vaddr = NULL; | |
5107 | struct cm_t *cm_addr = NULL; | |
5108 | uint count; | |
5109 | uint n; | |
5110 | u16 head; | |
5111 | u16 tail; | |
5112 | ||
5113 | if (!ch || ch->magic != DGAP_CHANNEL_MAGIC) | |
5114 | return; | |
5115 | ||
5116 | /* | |
5117 | * Check if board is still alive. | |
5118 | */ | |
31960c16 | 5119 | if (ch->ch_bd->state == BOARD_FAILED) |
b053bb86 | 5120 | return; |
b053bb86 MH |
5121 | |
5122 | /* | |
5123 | * Make sure the pointers are in range before | |
5124 | * writing to the FEP memory. | |
5125 | */ | |
5126 | vaddr = ch->ch_bd->re_map_membase; | |
5127 | if (!vaddr) | |
5128 | return; | |
5129 | ||
5130 | cm_addr = (struct cm_t *) (vaddr + CMDBUF); | |
5131 | head = readw(&(cm_addr->cm_head)); | |
5132 | ||
5133 | /* | |
5134 | * Forget it if pointers out of range. | |
5135 | */ | |
5136 | if (head >= (CMDMAX - CMDSTART) || (head & 03)) { | |
b053bb86 MH |
5137 | ch->ch_bd->state = BOARD_FAILED; |
5138 | return; | |
5139 | } | |
5140 | ||
5141 | /* | |
5142 | * Put the data in the circular command buffer. | |
5143 | */ | |
5144 | ||
5145 | /* Write an FF to tell the FEP that we want an extended command */ | |
5146 | writeb((uchar) 0xff, (char *) (vaddr + head + CMDSTART + 0)); | |
5147 | ||
5148 | writeb((uchar) ch->ch_portnum, (uchar *) (vaddr + head + CMDSTART + 1)); | |
5149 | writew((u16) cmd, (char *) (vaddr + head + CMDSTART + 2)); | |
5150 | ||
5151 | /* | |
5152 | * If the second part of the command won't fit, | |
5153 | * put it at the beginning of the circular buffer. | |
5154 | */ | |
305ec874 | 5155 | if (((head + 4) >= ((CMDMAX - CMDSTART)) || (head & 03))) |
b053bb86 | 5156 | writew((u16) word, (char *) (vaddr + CMDSTART)); |
305ec874 | 5157 | else |
b053bb86 | 5158 | writew((u16) word, (char *) (vaddr + head + CMDSTART + 4)); |
b053bb86 MH |
5159 | |
5160 | head = (head + 8) & (CMDMAX - CMDSTART - 4); | |
5161 | ||
5162 | writew(head, &(cm_addr->cm_head)); | |
5163 | ||
5164 | /* | |
5165 | * Wait if necessary before updating the head | |
5166 | * pointer to limit the number of outstanding | |
5167 | * commands to the FEP. If the time spent waiting | |
5168 | * is outlandish, declare the FEP dead. | |
5169 | */ | |
5170 | for (count = dgap_count ;;) { | |
5171 | ||
5172 | head = readw(&(cm_addr->cm_head)); | |
5173 | tail = readw(&(cm_addr->cm_tail)); | |
5174 | ||
5175 | n = (head - tail) & (CMDMAX - CMDSTART - 4); | |
5176 | ||
5177 | if (n <= ncmds * sizeof(struct cm_t)) | |
5178 | break; | |
5179 | ||
5180 | if (--count == 0) { | |
b053bb86 MH |
5181 | ch->ch_bd->state = BOARD_FAILED; |
5182 | return; | |
5183 | } | |
5184 | udelay(10); | |
5185 | } | |
5186 | } | |
5187 | ||
b053bb86 MH |
5188 | /*======================================================================= |
5189 | * | |
5190 | * dgap_wmove - Write data to FEP buffer. | |
5191 | * | |
5192 | * ch - Pointer to channel structure. | |
5193 | * buf - Poiter to characters to be moved. | |
5194 | * cnt - Number of characters to move. | |
5195 | * | |
5196 | *=======================================================================*/ | |
fe0ef8e6 | 5197 | static void dgap_wmove(struct channel_t *ch, char *buf, uint cnt) |
b053bb86 MH |
5198 | { |
5199 | int n; | |
5200 | char *taddr; | |
5201 | struct bs_t *bs; | |
5202 | u16 head; | |
5203 | ||
5204 | if (!ch || ch->magic != DGAP_CHANNEL_MAGIC) | |
5205 | return; | |
5206 | ||
5207 | /* | |
5208 | * Check parameters. | |
5209 | */ | |
5210 | bs = ch->ch_bs; | |
5211 | head = readw(&(bs->tx_head)); | |
5212 | ||
5213 | /* | |
5214 | * If pointers are out of range, just return. | |
5215 | */ | |
305ec874 MH |
5216 | if ((cnt > ch->ch_tsize) || |
5217 | (unsigned)(head - ch->ch_tstart) >= ch->ch_tsize) | |
b053bb86 | 5218 | return; |
b053bb86 MH |
5219 | |
5220 | /* | |
5221 | * If the write wraps over the top of the circular buffer, | |
5222 | * move the portion up to the wrap point, and reset the | |
5223 | * pointers to the bottom. | |
5224 | */ | |
5225 | n = ch->ch_tstart + ch->ch_tsize - head; | |
5226 | ||
5227 | if (cnt >= n) { | |
5228 | cnt -= n; | |
5229 | taddr = ch->ch_taddr + head; | |
5230 | memcpy_toio(taddr, buf, n); | |
5231 | head = ch->ch_tstart; | |
5232 | buf += n; | |
5233 | } | |
5234 | ||
5235 | /* | |
5236 | * Move rest of data. | |
5237 | */ | |
5238 | taddr = ch->ch_taddr + head; | |
5239 | n = cnt; | |
5240 | memcpy_toio(taddr, buf, n); | |
5241 | head += cnt; | |
5242 | ||
5243 | writew(head, &(bs->tx_head)); | |
5244 | } | |
5245 | ||
5246 | /* | |
5247 | * Retrives the current custom baud rate from FEP memory, | |
5248 | * and returns it back to the user. | |
5249 | * Returns 0 on error. | |
5250 | */ | |
fe0ef8e6 | 5251 | static uint dgap_get_custom_baud(struct channel_t *ch) |
b053bb86 MH |
5252 | { |
5253 | uchar *vaddr; | |
5254 | ulong offset = 0; | |
5255 | uint value = 0; | |
5256 | ||
305ec874 | 5257 | if (!ch || ch->magic != DGAP_CHANNEL_MAGIC) |
b053bb86 | 5258 | return 0; |
b053bb86 | 5259 | |
305ec874 | 5260 | if (!ch->ch_bd || ch->ch_bd->magic != DGAP_BOARD_MAGIC) |
b053bb86 | 5261 | return 0; |
b053bb86 MH |
5262 | |
5263 | if (!(ch->ch_bd->bd_flags & BD_FEP5PLUS)) | |
5264 | return 0; | |
5265 | ||
5266 | vaddr = ch->ch_bd->re_map_membase; | |
5267 | ||
5268 | if (!vaddr) | |
5269 | return 0; | |
5270 | ||
5271 | /* | |
5272 | * Go get from fep mem, what the fep | |
5273 | * believes the custom baud rate is. | |
5274 | */ | |
5275 | offset = ((((*(unsigned short *)(vaddr + ECS_SEG)) << 4) + | |
5276 | (ch->ch_portnum * 0x28) + LINE_SPEED)); | |
5277 | ||
5278 | value = readw(vaddr + offset); | |
5279 | return value; | |
5280 | } | |
5281 | ||
b053bb86 MH |
5282 | /* |
5283 | * Calls the firmware to reset this channel. | |
5284 | */ | |
fe0ef8e6 | 5285 | static void dgap_firmware_reset_port(struct channel_t *ch) |
b053bb86 MH |
5286 | { |
5287 | dgap_cmdb(ch, CHRESET, 0, 0, 0); | |
5288 | ||
5289 | /* | |
5290 | * Now that the channel is reset, we need to make sure | |
5291 | * all the current settings get reapplied to the port | |
5292 | * in the firmware. | |
5293 | * | |
5294 | * So we will set the driver's cache of firmware | |
5295 | * settings all to 0, and then call param. | |
5296 | */ | |
5297 | ch->ch_fepiflag = 0; | |
5298 | ch->ch_fepcflag = 0; | |
5299 | ch->ch_fepoflag = 0; | |
5300 | ch->ch_fepstartc = 0; | |
5301 | ch->ch_fepstopc = 0; | |
5302 | ch->ch_fepastartc = 0; | |
5303 | ch->ch_fepastopc = 0; | |
5304 | ch->ch_mostat = 0; | |
5305 | ch->ch_hflow = 0; | |
5306 | } | |
5307 | ||
b053bb86 MH |
5308 | /*======================================================================= |
5309 | * | |
5310 | * dgap_param - Set Digi parameters. | |
5311 | * | |
5312 | * struct tty_struct * - TTY for port. | |
5313 | * | |
5314 | *=======================================================================*/ | |
fe0ef8e6 | 5315 | static int dgap_param(struct tty_struct *tty) |
b053bb86 MH |
5316 | { |
5317 | struct ktermios *ts; | |
5318 | struct board_t *bd; | |
5319 | struct channel_t *ch; | |
5320 | struct bs_t *bs; | |
5321 | struct un_t *un; | |
5322 | u16 head; | |
5323 | u16 cflag; | |
5324 | u16 iflag; | |
5325 | uchar mval; | |
5326 | uchar hflow; | |
5327 | ||
5328 | if (!tty || tty->magic != TTY_MAGIC) | |
5329 | return -ENXIO; | |
5330 | ||
5331 | un = (struct un_t *) tty->driver_data; | |
5332 | if (!un || un->magic != DGAP_UNIT_MAGIC) | |
5333 | return -ENXIO; | |
5334 | ||
5335 | ch = un->un_ch; | |
5336 | if (!ch || ch->magic != DGAP_CHANNEL_MAGIC) | |
5337 | return -ENXIO; | |
5338 | ||
5339 | bd = ch->ch_bd; | |
5340 | if (!bd || bd->magic != DGAP_BOARD_MAGIC) | |
5341 | return -ENXIO; | |
5342 | ||
5343 | bs = ch->ch_bs; | |
5344 | if (!bs) | |
5345 | return -ENXIO; | |
5346 | ||
b053bb86 MH |
5347 | ts = &tty->termios; |
5348 | ||
5349 | /* | |
5350 | * If baud rate is zero, flush queues, and set mval to drop DTR. | |
5351 | */ | |
5352 | if ((ch->ch_c_cflag & (CBAUD)) == 0) { | |
5353 | ||
5354 | /* flush rx */ | |
5355 | head = readw(&(ch->ch_bs->rx_head)); | |
5356 | writew(head, &(ch->ch_bs->rx_tail)); | |
5357 | ||
5358 | /* flush tx */ | |
5359 | head = readw(&(ch->ch_bs->tx_head)); | |
5360 | writew(head, &(ch->ch_bs->tx_tail)); | |
5361 | ||
5362 | ch->ch_flags |= (CH_BAUD0); | |
5363 | ||
5364 | /* Drop RTS and DTR */ | |
5365 | ch->ch_mval &= ~(D_RTS(ch)|D_DTR(ch)); | |
5366 | mval = D_DTR(ch) | D_RTS(ch); | |
5367 | ch->ch_baud_info = 0; | |
5368 | ||
5369 | } else if (ch->ch_custom_speed && (bd->bd_flags & BD_FEP5PLUS)) { | |
5370 | /* | |
5371 | * Tell the fep to do the command | |
5372 | */ | |
5373 | ||
b053bb86 MH |
5374 | dgap_cmdw_ext(ch, 0xff01, ch->ch_custom_speed, 0); |
5375 | ||
5376 | /* | |
5377 | * Now go get from fep mem, what the fep | |
5378 | * believes the custom baud rate is. | |
5379 | */ | |
8a2c9c44 MH |
5380 | ch->ch_custom_speed = dgap_get_custom_baud(ch); |
5381 | ch->ch_baud_info = ch->ch_custom_speed; | |
b053bb86 | 5382 | |
b053bb86 MH |
5383 | /* Handle transition from B0 */ |
5384 | if (ch->ch_flags & CH_BAUD0) { | |
5385 | ch->ch_flags &= ~(CH_BAUD0); | |
5386 | ch->ch_mval |= (D_RTS(ch)|D_DTR(ch)); | |
5387 | } | |
5388 | mval = D_DTR(ch) | D_RTS(ch); | |
5389 | ||
5390 | } else { | |
5391 | /* | |
5392 | * Set baud rate, character size, and parity. | |
5393 | */ | |
5394 | ||
5395 | ||
5396 | int iindex = 0; | |
5397 | int jindex = 0; | |
5398 | int baud = 0; | |
5399 | ||
5400 | ulong bauds[4][16] = { | |
5401 | { /* slowbaud */ | |
5402 | 0, 50, 75, 110, | |
5403 | 134, 150, 200, 300, | |
5404 | 600, 1200, 1800, 2400, | |
5405 | 4800, 9600, 19200, 38400 }, | |
5406 | { /* slowbaud & CBAUDEX */ | |
5407 | 0, 57600, 115200, 230400, | |
5408 | 460800, 150, 200, 921600, | |
5409 | 600, 1200, 1800, 2400, | |
5410 | 4800, 9600, 19200, 38400 }, | |
5411 | { /* fastbaud */ | |
5412 | 0, 57600, 76800, 115200, | |
5413 | 14400, 57600, 230400, 76800, | |
5414 | 115200, 230400, 28800, 460800, | |
5415 | 921600, 9600, 19200, 38400 }, | |
5416 | { /* fastbaud & CBAUDEX */ | |
5417 | 0, 57600, 115200, 230400, | |
5418 | 460800, 150, 200, 921600, | |
5419 | 600, 1200, 1800, 2400, | |
5420 | 4800, 9600, 19200, 38400 } | |
5421 | }; | |
5422 | ||
8a2c9c44 MH |
5423 | /* |
5424 | * Only use the TXPrint baud rate if the | |
5425 | * terminal unit is NOT open | |
5426 | */ | |
5427 | if (!(ch->ch_tun.un_flags & UN_ISOPEN) && | |
5428 | (un->un_type == DGAP_PRINT)) | |
b053bb86 MH |
5429 | baud = C_BAUD(ch->ch_pun.un_tty) & 0xff; |
5430 | else | |
5431 | baud = C_BAUD(ch->ch_tun.un_tty) & 0xff; | |
5432 | ||
5433 | if (ch->ch_c_cflag & CBAUDEX) | |
5434 | iindex = 1; | |
5435 | ||
5436 | if (ch->ch_digi.digi_flags & DIGI_FAST) | |
5437 | iindex += 2; | |
5438 | ||
5439 | jindex = baud; | |
5440 | ||
305ec874 MH |
5441 | if ((iindex >= 0) && (iindex < 4) && |
5442 | (jindex >= 0) && (jindex < 16)) | |
b053bb86 | 5443 | baud = bauds[iindex][jindex]; |
305ec874 | 5444 | else |
b053bb86 | 5445 | baud = 0; |
b053bb86 MH |
5446 | |
5447 | if (baud == 0) | |
5448 | baud = 9600; | |
5449 | ||
5450 | ch->ch_baud_info = baud; | |
5451 | ||
b053bb86 | 5452 | /* |
8a2c9c44 MH |
5453 | * CBAUD has bit position 0x1000 set these days to |
5454 | * indicate Linux baud rate remap. | |
5455 | * We use a different bit assignment for high speed. | |
5456 | * Clear this bit out while grabbing the parts of | |
5457 | * "cflag" we want. | |
b053bb86 | 5458 | */ |
8a2c9c44 MH |
5459 | cflag = ch->ch_c_cflag & ((CBAUD ^ CBAUDEX) | PARODD | PARENB | |
5460 | CSTOPB | CSIZE); | |
b053bb86 MH |
5461 | |
5462 | /* | |
5463 | * HUPCL bit is used by FEP to indicate fast baud | |
5464 | * table is to be used. | |
5465 | */ | |
8a2c9c44 MH |
5466 | if ((ch->ch_digi.digi_flags & DIGI_FAST) || |
5467 | (ch->ch_c_cflag & CBAUDEX)) | |
b053bb86 MH |
5468 | cflag |= HUPCL; |
5469 | ||
af5b80be MH |
5470 | if ((ch->ch_c_cflag & CBAUDEX) && |
5471 | !(ch->ch_digi.digi_flags & DIGI_FAST)) { | |
5472 | /* | |
5473 | * The below code is trying to guarantee that only | |
5474 | * baud rates 115200, 230400, 460800, 921600 are | |
5475 | * remapped. We use exclusive or because the various | |
5476 | * baud rates share common bit positions and therefore | |
5477 | * can't be tested for easily. | |
5478 | */ | |
b053bb86 MH |
5479 | tcflag_t tcflag = (ch->ch_c_cflag & CBAUD) | CBAUDEX; |
5480 | int baudpart = 0; | |
5481 | ||
8a2c9c44 MH |
5482 | /* |
5483 | * Map high speed requests to index | |
5484 | * into FEP's baud table | |
5485 | */ | |
b053bb86 | 5486 | switch (tcflag) { |
b115b024 | 5487 | case B57600: |
b053bb86 MH |
5488 | baudpart = 1; |
5489 | break; | |
5490 | #ifdef B76800 | |
b115b024 | 5491 | case B76800: |
b053bb86 MH |
5492 | baudpart = 2; |
5493 | break; | |
5494 | #endif | |
b115b024 | 5495 | case B115200: |
b053bb86 MH |
5496 | baudpart = 3; |
5497 | break; | |
b115b024 | 5498 | case B230400: |
b053bb86 MH |
5499 | baudpart = 9; |
5500 | break; | |
b115b024 | 5501 | case B460800: |
b053bb86 MH |
5502 | baudpart = 11; |
5503 | break; | |
5504 | #ifdef B921600 | |
b115b024 | 5505 | case B921600: |
b053bb86 MH |
5506 | baudpart = 12; |
5507 | break; | |
5508 | #endif | |
5509 | default: | |
5510 | baudpart = 0; | |
5511 | } | |
5512 | ||
5513 | if (baudpart) | |
5514 | cflag = (cflag & ~(CBAUD | CBAUDEX)) | baudpart; | |
5515 | } | |
5516 | ||
5517 | cflag &= 0xffff; | |
5518 | ||
5519 | if (cflag != ch->ch_fepcflag) { | |
5520 | ch->ch_fepcflag = (u16) (cflag & 0xffff); | |
5521 | ||
8fc324e4 MH |
5522 | /* |
5523 | * Okay to have channel and board | |
5524 | * locks held calling this | |
5525 | */ | |
b053bb86 MH |
5526 | dgap_cmdw(ch, SCFLAG, (u16) cflag, 0); |
5527 | } | |
5528 | ||
5529 | /* Handle transition from B0 */ | |
5530 | if (ch->ch_flags & CH_BAUD0) { | |
5531 | ch->ch_flags &= ~(CH_BAUD0); | |
5532 | ch->ch_mval |= (D_RTS(ch)|D_DTR(ch)); | |
5533 | } | |
5534 | mval = D_DTR(ch) | D_RTS(ch); | |
5535 | } | |
5536 | ||
5537 | /* | |
5538 | * Get input flags. | |
5539 | */ | |
8fc324e4 MH |
5540 | iflag = ch->ch_c_iflag & (IGNBRK | BRKINT | IGNPAR | PARMRK | |
5541 | INPCK | ISTRIP | IXON | IXANY | IXOFF); | |
b053bb86 | 5542 | |
8fc324e4 MH |
5543 | if ((ch->ch_startc == _POSIX_VDISABLE) || |
5544 | (ch->ch_stopc == _POSIX_VDISABLE)) { | |
b053bb86 MH |
5545 | iflag &= ~(IXON | IXOFF); |
5546 | ch->ch_c_iflag &= ~(IXON | IXOFF); | |
5547 | } | |
5548 | ||
5549 | /* | |
5550 | * Only the IBM Xr card can switch between | |
5551 | * 232 and 422 modes on the fly | |
5552 | */ | |
2f60b333 | 5553 | if (bd->device == PCI_DEV_XR_IBM_DID) { |
b053bb86 MH |
5554 | if (ch->ch_digi.digi_flags & DIGI_422) |
5555 | dgap_cmdb(ch, SCOMMODE, MODE_422, 0, 0); | |
5556 | else | |
5557 | dgap_cmdb(ch, SCOMMODE, MODE_232, 0, 0); | |
5558 | } | |
5559 | ||
5560 | if (ch->ch_digi.digi_flags & DIGI_ALTPIN) | |
b115b024 | 5561 | iflag |= IALTPIN; |
b053bb86 MH |
5562 | |
5563 | if (iflag != ch->ch_fepiflag) { | |
5564 | ch->ch_fepiflag = iflag; | |
5565 | ||
5566 | /* Okay to have channel and board locks held calling this */ | |
5567 | dgap_cmdw(ch, SIFLAG, (u16) ch->ch_fepiflag, 0); | |
5568 | } | |
5569 | ||
5570 | /* | |
5571 | * Select hardware handshaking. | |
5572 | */ | |
5573 | hflow = 0; | |
5574 | ||
305ec874 | 5575 | if (ch->ch_c_cflag & CRTSCTS) |
b053bb86 | 5576 | hflow |= (D_RTS(ch) | D_CTS(ch)); |
b053bb86 MH |
5577 | if (ch->ch_digi.digi_flags & RTSPACE) |
5578 | hflow |= D_RTS(ch); | |
5579 | if (ch->ch_digi.digi_flags & DTRPACE) | |
5580 | hflow |= D_DTR(ch); | |
5581 | if (ch->ch_digi.digi_flags & CTSPACE) | |
5582 | hflow |= D_CTS(ch); | |
5583 | if (ch->ch_digi.digi_flags & DSRPACE) | |
5584 | hflow |= D_DSR(ch); | |
5585 | if (ch->ch_digi.digi_flags & DCDPACE) | |
5586 | hflow |= D_CD(ch); | |
5587 | ||
5588 | if (hflow != ch->ch_hflow) { | |
5589 | ch->ch_hflow = hflow; | |
5590 | ||
5591 | /* Okay to have channel and board locks held calling this */ | |
5592 | dgap_cmdb(ch, SHFLOW, (uchar) hflow, 0xff, 0); | |
5593 | } | |
5594 | ||
5595 | ||
5596 | /* | |
8fc324e4 MH |
5597 | * Set RTS and/or DTR Toggle if needed, |
5598 | * but only if product is FEP5+ based. | |
b053bb86 MH |
5599 | */ |
5600 | if (bd->bd_flags & BD_FEP5PLUS) { | |
5601 | u16 hflow2 = 0; | |
305ec874 | 5602 | if (ch->ch_digi.digi_flags & DIGI_RTS_TOGGLE) |
b053bb86 | 5603 | hflow2 |= (D_RTS(ch)); |
305ec874 | 5604 | if (ch->ch_digi.digi_flags & DIGI_DTR_TOGGLE) |
b053bb86 | 5605 | hflow2 |= (D_DTR(ch)); |
b053bb86 MH |
5606 | |
5607 | dgap_cmdw_ext(ch, 0xff03, hflow2, 0); | |
5608 | } | |
5609 | ||
5610 | /* | |
5611 | * Set modem control lines. | |
5612 | */ | |
5613 | ||
5614 | mval ^= ch->ch_mforce & (mval ^ ch->ch_mval); | |
5615 | ||
b053bb86 MH |
5616 | if (ch->ch_mostat ^ mval) { |
5617 | ch->ch_mostat = mval; | |
5618 | ||
5619 | /* Okay to have channel and board locks held calling this */ | |
b053bb86 MH |
5620 | dgap_cmdb(ch, SMODEM, (uchar) mval, D_RTS(ch)|D_DTR(ch), 0); |
5621 | } | |
5622 | ||
5623 | /* | |
5624 | * Read modem signals, and then call carrier function. | |
5625 | */ | |
5626 | ch->ch_mistat = readb(&(bs->m_stat)); | |
5627 | dgap_carrier(ch); | |
5628 | ||
5629 | /* | |
5630 | * Set the start and stop characters. | |
5631 | */ | |
8fc324e4 MH |
5632 | if (ch->ch_startc != ch->ch_fepstartc || |
5633 | ch->ch_stopc != ch->ch_fepstopc) { | |
b053bb86 MH |
5634 | ch->ch_fepstartc = ch->ch_startc; |
5635 | ch->ch_fepstopc = ch->ch_stopc; | |
5636 | ||
5637 | /* Okay to have channel and board locks held calling this */ | |
5638 | dgap_cmdb(ch, SFLOWC, ch->ch_fepstartc, ch->ch_fepstopc, 0); | |
5639 | } | |
5640 | ||
5641 | /* | |
5642 | * Set the Auxiliary start and stop characters. | |
5643 | */ | |
8fc324e4 MH |
5644 | if (ch->ch_astartc != ch->ch_fepastartc || |
5645 | ch->ch_astopc != ch->ch_fepastopc) { | |
b053bb86 MH |
5646 | ch->ch_fepastartc = ch->ch_astartc; |
5647 | ch->ch_fepastopc = ch->ch_astopc; | |
5648 | ||
5649 | /* Okay to have channel and board locks held calling this */ | |
5650 | dgap_cmdb(ch, SAFLOWC, ch->ch_fepastartc, ch->ch_fepastopc, 0); | |
5651 | } | |
5652 | ||
b053bb86 MH |
5653 | return 0; |
5654 | } | |
5655 | ||
b053bb86 MH |
5656 | /* |
5657 | * dgap_parity_scan() | |
5658 | * | |
5659 | * Convert the FEP5 way of reporting parity errors and breaks into | |
5660 | * the Linux line discipline way. | |
5661 | */ | |
8fc324e4 MH |
5662 | static void dgap_parity_scan(struct channel_t *ch, unsigned char *cbuf, |
5663 | unsigned char *fbuf, int *len) | |
b053bb86 MH |
5664 | { |
5665 | int l = *len; | |
5666 | int count = 0; | |
5667 | unsigned char *in, *cout, *fout; | |
5668 | unsigned char c; | |
5669 | ||
5670 | in = cbuf; | |
5671 | cout = cbuf; | |
5672 | fout = fbuf; | |
5673 | ||
b053bb86 MH |
5674 | if (!ch || ch->magic != DGAP_CHANNEL_MAGIC) |
5675 | return; | |
5676 | ||
5677 | while (l--) { | |
5678 | c = *in++; | |
5679 | switch (ch->pscan_state) { | |
5680 | default: | |
5681 | /* reset to sanity and fall through */ | |
5682 | ch->pscan_state = 0; | |
5683 | ||
5684 | case 0: | |
5685 | /* No FF seen yet */ | |
305ec874 | 5686 | if (c == (unsigned char) '\377') |
b053bb86 MH |
5687 | /* delete this character from stream */ |
5688 | ch->pscan_state = 1; | |
305ec874 | 5689 | else { |
b053bb86 MH |
5690 | *cout++ = c; |
5691 | *fout++ = TTY_NORMAL; | |
5692 | count += 1; | |
5693 | } | |
5694 | break; | |
5695 | ||
5696 | case 1: | |
5697 | /* first FF seen */ | |
5698 | if (c == (unsigned char) '\377') { | |
5699 | /* doubled ff, transform to single ff */ | |
5700 | *cout++ = c; | |
5701 | *fout++ = TTY_NORMAL; | |
5702 | count += 1; | |
5703 | ch->pscan_state = 0; | |
5704 | } else { | |
5705 | /* save value examination in next state */ | |
5706 | ch->pscan_savechar = c; | |
5707 | ch->pscan_state = 2; | |
5708 | } | |
5709 | break; | |
5710 | ||
5711 | case 2: | |
5712 | /* third character of ff sequence */ | |
5713 | ||
5714 | *cout++ = c; | |
5715 | ||
5716 | if (ch->pscan_savechar == 0x0) { | |
5717 | ||
5718 | if (c == 0x0) { | |
b053bb86 MH |
5719 | ch->ch_err_break++; |
5720 | *fout++ = TTY_BREAK; | |
305ec874 | 5721 | } else { |
b053bb86 MH |
5722 | ch->ch_err_parity++; |
5723 | *fout++ = TTY_PARITY; | |
5724 | } | |
5725 | } | |
b053bb86 MH |
5726 | |
5727 | count += 1; | |
5728 | ch->pscan_state = 0; | |
5729 | } | |
5730 | } | |
5731 | *len = count; | |
b053bb86 MH |
5732 | } |
5733 | ||
b053bb86 MH |
5734 | /*======================================================================= |
5735 | * | |
5736 | * dgap_event - FEP to host event processing routine. | |
5737 | * | |
5738 | * bd - Board of current event. | |
5739 | * | |
5740 | *=======================================================================*/ | |
5741 | static int dgap_event(struct board_t *bd) | |
5742 | { | |
5743 | struct channel_t *ch; | |
5744 | ulong lock_flags; | |
5745 | ulong lock_flags2; | |
5746 | struct bs_t *bs; | |
5747 | uchar *event; | |
5748 | uchar *vaddr = NULL; | |
5749 | struct ev_t *eaddr = NULL; | |
5750 | uint head; | |
5751 | uint tail; | |
5752 | int port; | |
5753 | int reason; | |
5754 | int modem; | |
5755 | int b1; | |
5756 | ||
5757 | if (!bd || bd->magic != DGAP_BOARD_MAGIC) | |
5758 | return -ENXIO; | |
5759 | ||
5760 | DGAP_LOCK(bd->bd_lock, lock_flags); | |
5761 | ||
5762 | vaddr = bd->re_map_membase; | |
5763 | ||
5764 | if (!vaddr) { | |
5765 | DGAP_UNLOCK(bd->bd_lock, lock_flags); | |
5766 | return -ENXIO; | |
5767 | } | |
5768 | ||
5769 | eaddr = (struct ev_t *) (vaddr + EVBUF); | |
5770 | ||
5771 | /* Get our head and tail */ | |
5772 | head = readw(&(eaddr->ev_head)); | |
5773 | tail = readw(&(eaddr->ev_tail)); | |
5774 | ||
5775 | /* | |
5776 | * Forget it if pointers out of range. | |
5777 | */ | |
5778 | ||
5779 | if (head >= EVMAX - EVSTART || tail >= EVMAX - EVSTART || | |
5780 | (head | tail) & 03) { | |
b053bb86 MH |
5781 | /* Let go of board lock */ |
5782 | DGAP_UNLOCK(bd->bd_lock, lock_flags); | |
5783 | return -ENXIO; | |
5784 | } | |
5785 | ||
5786 | /* | |
5787 | * Loop to process all the events in the buffer. | |
5788 | */ | |
5789 | while (tail != head) { | |
5790 | ||
5791 | /* | |
5792 | * Get interrupt information. | |
5793 | */ | |
5794 | ||
5795 | event = bd->re_map_membase + tail + EVSTART; | |
5796 | ||
5797 | port = event[0]; | |
5798 | reason = event[1]; | |
5799 | modem = event[2]; | |
5800 | b1 = event[3]; | |
5801 | ||
b053bb86 MH |
5802 | /* |
5803 | * Make sure the interrupt is valid. | |
5804 | */ | |
5805 | if (port >= bd->nasync) | |
5806 | goto next; | |
5807 | ||
305ec874 | 5808 | if (!(reason & (IFMODEM | IFBREAK | IFTLW | IFTEM | IFDATA))) |
b053bb86 | 5809 | goto next; |
b053bb86 MH |
5810 | |
5811 | ch = bd->channels[port]; | |
5812 | ||
305ec874 | 5813 | if (!ch || ch->magic != DGAP_CHANNEL_MAGIC) |
b053bb86 | 5814 | goto next; |
b053bb86 MH |
5815 | |
5816 | /* | |
5817 | * If we have made it here, the event was valid. | |
5818 | * Lock down the channel. | |
5819 | */ | |
5820 | DGAP_LOCK(ch->ch_lock, lock_flags2); | |
5821 | ||
5822 | bs = ch->ch_bs; | |
5823 | ||
5824 | if (!bs) { | |
5825 | DGAP_UNLOCK(ch->ch_lock, lock_flags2); | |
5826 | goto next; | |
5827 | } | |
5828 | ||
5829 | /* | |
5830 | * Process received data. | |
5831 | */ | |
5832 | if (reason & IFDATA) { | |
5833 | ||
5834 | /* | |
5835 | * ALL LOCKS *MUST* BE DROPPED BEFORE CALLING INPUT! | |
5836 | * input could send some data to ld, which in turn | |
5837 | * could do a callback to one of our other functions. | |
5838 | */ | |
5839 | DGAP_UNLOCK(ch->ch_lock, lock_flags2); | |
5840 | DGAP_UNLOCK(bd->bd_lock, lock_flags); | |
5841 | ||
5842 | dgap_input(ch); | |
5843 | ||
5844 | DGAP_LOCK(bd->bd_lock, lock_flags); | |
5845 | DGAP_LOCK(ch->ch_lock, lock_flags2); | |
5846 | ||
5847 | if (ch->ch_flags & CH_RACTIVE) | |
5848 | ch->ch_flags |= CH_RENABLE; | |
5849 | else | |
5850 | writeb(1, &(bs->idata)); | |
5851 | ||
5852 | if (ch->ch_flags & CH_RWAIT) { | |
5853 | ch->ch_flags &= ~CH_RWAIT; | |
5854 | ||
5855 | wake_up_interruptible(&ch->ch_tun.un_flags_wait); | |
5856 | } | |
5857 | } | |
5858 | ||
5859 | /* | |
5860 | * Process Modem change signals. | |
5861 | */ | |
5862 | if (reason & IFMODEM) { | |
5863 | ch->ch_mistat = modem; | |
5864 | dgap_carrier(ch); | |
5865 | } | |
5866 | ||
5867 | /* | |
5868 | * Process break. | |
5869 | */ | |
5870 | if (reason & IFBREAK) { | |
5871 | ||
b053bb86 MH |
5872 | if (ch->ch_tun.un_tty) { |
5873 | /* A break has been indicated */ | |
5874 | ch->ch_err_break++; | |
5875 | tty_buffer_request_room(ch->ch_tun.un_tty->port, 1); | |
5876 | tty_insert_flip_char(ch->ch_tun.un_tty->port, 0, TTY_BREAK); | |
5877 | tty_flip_buffer_push(ch->ch_tun.un_tty->port); | |
5878 | } | |
5879 | } | |
5880 | ||
5881 | /* | |
5882 | * Process Transmit low. | |
5883 | */ | |
5884 | if (reason & IFTLW) { | |
5885 | ||
b053bb86 MH |
5886 | if (ch->ch_tun.un_flags & UN_LOW) { |
5887 | ch->ch_tun.un_flags &= ~UN_LOW; | |
5888 | ||
5889 | if (ch->ch_tun.un_flags & UN_ISOPEN) { | |
5890 | if ((ch->ch_tun.un_tty->flags & | |
5891 | (1 << TTY_DO_WRITE_WAKEUP)) && | |
305ec874 | 5892 | ch->ch_tun.un_tty->ldisc->ops->write_wakeup) { |
b053bb86 MH |
5893 | DGAP_UNLOCK(ch->ch_lock, lock_flags2); |
5894 | DGAP_UNLOCK(bd->bd_lock, lock_flags); | |
5895 | (ch->ch_tun.un_tty->ldisc->ops->write_wakeup)(ch->ch_tun.un_tty); | |
5896 | DGAP_LOCK(bd->bd_lock, lock_flags); | |
5897 | DGAP_LOCK(ch->ch_lock, lock_flags2); | |
5898 | } | |
5899 | wake_up_interruptible(&ch->ch_tun.un_tty->write_wait); | |
5900 | wake_up_interruptible(&ch->ch_tun.un_flags_wait); | |
b053bb86 MH |
5901 | } |
5902 | } | |
5903 | ||
5904 | if (ch->ch_pun.un_flags & UN_LOW) { | |
5905 | ch->ch_pun.un_flags &= ~UN_LOW; | |
5906 | if (ch->ch_pun.un_flags & UN_ISOPEN) { | |
5907 | if ((ch->ch_pun.un_tty->flags & | |
5908 | (1 << TTY_DO_WRITE_WAKEUP)) && | |
305ec874 | 5909 | ch->ch_pun.un_tty->ldisc->ops->write_wakeup) { |
b053bb86 MH |
5910 | DGAP_UNLOCK(ch->ch_lock, lock_flags2); |
5911 | DGAP_UNLOCK(bd->bd_lock, lock_flags); | |
5912 | (ch->ch_pun.un_tty->ldisc->ops->write_wakeup)(ch->ch_pun.un_tty); | |
5913 | DGAP_LOCK(bd->bd_lock, lock_flags); | |
5914 | DGAP_LOCK(ch->ch_lock, lock_flags2); | |
5915 | } | |
5916 | wake_up_interruptible(&ch->ch_pun.un_tty->write_wait); | |
5917 | wake_up_interruptible(&ch->ch_pun.un_flags_wait); | |
5918 | } | |
5919 | } | |
5920 | ||
5921 | if (ch->ch_flags & CH_WLOW) { | |
5922 | ch->ch_flags &= ~CH_WLOW; | |
5923 | wake_up_interruptible(&ch->ch_flags_wait); | |
5924 | } | |
5925 | } | |
5926 | ||
5927 | /* | |
5928 | * Process Transmit empty. | |
5929 | */ | |
5930 | if (reason & IFTEM) { | |
b053bb86 MH |
5931 | if (ch->ch_tun.un_flags & UN_EMPTY) { |
5932 | ch->ch_tun.un_flags &= ~UN_EMPTY; | |
5933 | if (ch->ch_tun.un_flags & UN_ISOPEN) { | |
5934 | if ((ch->ch_tun.un_tty->flags & | |
5935 | (1 << TTY_DO_WRITE_WAKEUP)) && | |
305ec874 | 5936 | ch->ch_tun.un_tty->ldisc->ops->write_wakeup) { |
b053bb86 MH |
5937 | DGAP_UNLOCK(ch->ch_lock, lock_flags2); |
5938 | DGAP_UNLOCK(bd->bd_lock, lock_flags); | |
5939 | ||
5940 | (ch->ch_tun.un_tty->ldisc->ops->write_wakeup)(ch->ch_tun.un_tty); | |
5941 | DGAP_LOCK(bd->bd_lock, lock_flags); | |
5942 | DGAP_LOCK(ch->ch_lock, lock_flags2); | |
5943 | } | |
5944 | wake_up_interruptible(&ch->ch_tun.un_tty->write_wait); | |
5945 | wake_up_interruptible(&ch->ch_tun.un_flags_wait); | |
5946 | } | |
5947 | } | |
5948 | ||
5949 | if (ch->ch_pun.un_flags & UN_EMPTY) { | |
5950 | ch->ch_pun.un_flags &= ~UN_EMPTY; | |
5951 | if (ch->ch_pun.un_flags & UN_ISOPEN) { | |
5952 | if ((ch->ch_pun.un_tty->flags & | |
5953 | (1 << TTY_DO_WRITE_WAKEUP)) && | |
305ec874 | 5954 | ch->ch_pun.un_tty->ldisc->ops->write_wakeup) { |
b053bb86 MH |
5955 | DGAP_UNLOCK(ch->ch_lock, lock_flags2); |
5956 | DGAP_UNLOCK(bd->bd_lock, lock_flags); | |
5957 | (ch->ch_pun.un_tty->ldisc->ops->write_wakeup)(ch->ch_pun.un_tty); | |
5958 | DGAP_LOCK(bd->bd_lock, lock_flags); | |
5959 | DGAP_LOCK(ch->ch_lock, lock_flags2); | |
5960 | } | |
5961 | wake_up_interruptible(&ch->ch_pun.un_tty->write_wait); | |
5962 | wake_up_interruptible(&ch->ch_pun.un_flags_wait); | |
5963 | } | |
5964 | } | |
5965 | ||
5966 | ||
5967 | if (ch->ch_flags & CH_WEMPTY) { | |
5968 | ch->ch_flags &= ~CH_WEMPTY; | |
5969 | wake_up_interruptible(&ch->ch_flags_wait); | |
5970 | } | |
5971 | } | |
5972 | ||
5973 | DGAP_UNLOCK(ch->ch_lock, lock_flags2); | |
5974 | ||
5975 | next: | |
5976 | tail = (tail + 4) & (EVMAX - EVSTART - 4); | |
5977 | } | |
5978 | ||
5979 | writew(tail, &(eaddr->ev_tail)); | |
5980 | DGAP_UNLOCK(bd->bd_lock, lock_flags); | |
5981 | ||
5982 | return 0; | |
5983 | } | |
7568f7d3 MH |
5984 | |
5985 | static ssize_t dgap_driver_version_show(struct device_driver *ddp, char *buf) | |
5986 | { | |
5987 | return snprintf(buf, PAGE_SIZE, "%s\n", DG_PART); | |
5988 | } | |
5989 | static DRIVER_ATTR(version, S_IRUSR, dgap_driver_version_show, NULL); | |
5990 | ||
5991 | ||
5992 | static ssize_t dgap_driver_boards_show(struct device_driver *ddp, char *buf) | |
5993 | { | |
5994 | return snprintf(buf, PAGE_SIZE, "%d\n", dgap_NumBoards); | |
5995 | } | |
5996 | static DRIVER_ATTR(boards, S_IRUSR, dgap_driver_boards_show, NULL); | |
5997 | ||
5998 | ||
5999 | static ssize_t dgap_driver_maxboards_show(struct device_driver *ddp, char *buf) | |
6000 | { | |
6001 | return snprintf(buf, PAGE_SIZE, "%d\n", MAXBOARDS); | |
6002 | } | |
6003 | static DRIVER_ATTR(maxboards, S_IRUSR, dgap_driver_maxboards_show, NULL); | |
6004 | ||
6005 | ||
6006 | static ssize_t dgap_driver_pollcounter_show(struct device_driver *ddp, char *buf) | |
6007 | { | |
6008 | return snprintf(buf, PAGE_SIZE, "%ld\n", dgap_poll_counter); | |
6009 | } | |
6010 | static DRIVER_ATTR(pollcounter, S_IRUSR, dgap_driver_pollcounter_show, NULL); | |
6011 | ||
6012 | ||
6013 | static ssize_t dgap_driver_state_show(struct device_driver *ddp, char *buf) | |
6014 | { | |
6015 | return snprintf(buf, PAGE_SIZE, "%s\n", dgap_driver_state_text[dgap_driver_state]); | |
6016 | } | |
6017 | static DRIVER_ATTR(state, S_IRUSR, dgap_driver_state_show, NULL); | |
6018 | ||
7568f7d3 MH |
6019 | static ssize_t dgap_driver_pollrate_show(struct device_driver *ddp, char *buf) |
6020 | { | |
6021 | return snprintf(buf, PAGE_SIZE, "%dms\n", dgap_poll_tick); | |
6022 | } | |
6023 | ||
6024 | static ssize_t dgap_driver_pollrate_store(struct device_driver *ddp, const char *buf, size_t count) | |
6025 | { | |
c4875ebf MH |
6026 | if (sscanf(buf, "%d\n", &dgap_poll_tick) != 1) |
6027 | return -EINVAL; | |
7568f7d3 MH |
6028 | return count; |
6029 | } | |
6030 | static DRIVER_ATTR(pollrate, (S_IRUSR | S_IWUSR), dgap_driver_pollrate_show, dgap_driver_pollrate_store); | |
6031 | ||
434b679b | 6032 | static int dgap_create_driver_sysfiles(struct pci_driver *dgap_driver) |
7568f7d3 MH |
6033 | { |
6034 | int rc = 0; | |
6035 | struct device_driver *driverfs = &dgap_driver->driver; | |
6036 | ||
6037 | rc |= driver_create_file(driverfs, &driver_attr_version); | |
6038 | rc |= driver_create_file(driverfs, &driver_attr_boards); | |
6039 | rc |= driver_create_file(driverfs, &driver_attr_maxboards); | |
7568f7d3 MH |
6040 | rc |= driver_create_file(driverfs, &driver_attr_pollrate); |
6041 | rc |= driver_create_file(driverfs, &driver_attr_pollcounter); | |
6042 | rc |= driver_create_file(driverfs, &driver_attr_state); | |
434b679b MH |
6043 | |
6044 | return rc; | |
7568f7d3 MH |
6045 | } |
6046 | ||
fe0ef8e6 | 6047 | static void dgap_remove_driver_sysfiles(struct pci_driver *dgap_driver) |
7568f7d3 MH |
6048 | { |
6049 | struct device_driver *driverfs = &dgap_driver->driver; | |
6050 | driver_remove_file(driverfs, &driver_attr_version); | |
6051 | driver_remove_file(driverfs, &driver_attr_boards); | |
6052 | driver_remove_file(driverfs, &driver_attr_maxboards); | |
7568f7d3 MH |
6053 | driver_remove_file(driverfs, &driver_attr_pollrate); |
6054 | driver_remove_file(driverfs, &driver_attr_pollcounter); | |
6055 | driver_remove_file(driverfs, &driver_attr_state); | |
6056 | } | |
6057 | ||
3eb14151 MH |
6058 | static struct board_t *dgap_verify_board(struct device *p) |
6059 | { | |
6060 | struct board_t *bd; | |
6061 | ||
6062 | if (!p) | |
6063 | return NULL; | |
6064 | ||
6065 | bd = dev_get_drvdata(p); | |
6066 | if (!bd || bd->magic != DGAP_BOARD_MAGIC || bd->state != BOARD_READY) | |
6067 | return NULL; | |
6068 | ||
6069 | return bd; | |
6070 | } | |
7568f7d3 | 6071 | |
7568f7d3 MH |
6072 | static ssize_t dgap_ports_state_show(struct device *p, struct device_attribute *attr, char *buf) |
6073 | { | |
6074 | struct board_t *bd; | |
6075 | int count = 0; | |
6076 | int i = 0; | |
6077 | ||
3eb14151 MH |
6078 | bd = dgap_verify_board(p); |
6079 | if (!bd) | |
6080 | return 0; | |
7568f7d3 MH |
6081 | |
6082 | for (i = 0; i < bd->nasync; i++) { | |
6083 | count += snprintf(buf + count, PAGE_SIZE - count, | |
6084 | "%d %s\n", bd->channels[i]->ch_portnum, | |
6085 | bd->channels[i]->ch_open_count ? "Open" : "Closed"); | |
6086 | } | |
6087 | return count; | |
6088 | } | |
6089 | static DEVICE_ATTR(ports_state, S_IRUSR, dgap_ports_state_show, NULL); | |
6090 | ||
7568f7d3 MH |
6091 | static ssize_t dgap_ports_baud_show(struct device *p, struct device_attribute *attr, char *buf) |
6092 | { | |
6093 | struct board_t *bd; | |
6094 | int count = 0; | |
6095 | int i = 0; | |
6096 | ||
3eb14151 MH |
6097 | bd = dgap_verify_board(p); |
6098 | if (!bd) | |
6099 | return 0; | |
7568f7d3 MH |
6100 | |
6101 | for (i = 0; i < bd->nasync; i++) { | |
6102 | count += snprintf(buf + count, PAGE_SIZE - count, | |
6103 | "%d %d\n", bd->channels[i]->ch_portnum, bd->channels[i]->ch_baud_info); | |
6104 | } | |
6105 | return count; | |
6106 | } | |
6107 | static DEVICE_ATTR(ports_baud, S_IRUSR, dgap_ports_baud_show, NULL); | |
6108 | ||
7568f7d3 MH |
6109 | static ssize_t dgap_ports_msignals_show(struct device *p, struct device_attribute *attr, char *buf) |
6110 | { | |
6111 | struct board_t *bd; | |
6112 | int count = 0; | |
6113 | int i = 0; | |
6114 | ||
3eb14151 MH |
6115 | bd = dgap_verify_board(p); |
6116 | if (!bd) | |
6117 | return 0; | |
7568f7d3 MH |
6118 | |
6119 | for (i = 0; i < bd->nasync; i++) { | |
305ec874 | 6120 | if (bd->channels[i]->ch_open_count) |
7568f7d3 MH |
6121 | count += snprintf(buf + count, PAGE_SIZE - count, |
6122 | "%d %s %s %s %s %s %s\n", bd->channels[i]->ch_portnum, | |
6123 | (bd->channels[i]->ch_mostat & UART_MCR_RTS) ? "RTS" : "", | |
6124 | (bd->channels[i]->ch_mistat & UART_MSR_CTS) ? "CTS" : "", | |
6125 | (bd->channels[i]->ch_mostat & UART_MCR_DTR) ? "DTR" : "", | |
6126 | (bd->channels[i]->ch_mistat & UART_MSR_DSR) ? "DSR" : "", | |
6127 | (bd->channels[i]->ch_mistat & UART_MSR_DCD) ? "DCD" : "", | |
6128 | (bd->channels[i]->ch_mistat & UART_MSR_RI) ? "RI" : ""); | |
305ec874 | 6129 | else |
7568f7d3 MH |
6130 | count += snprintf(buf + count, PAGE_SIZE - count, |
6131 | "%d\n", bd->channels[i]->ch_portnum); | |
7568f7d3 MH |
6132 | } |
6133 | return count; | |
6134 | } | |
6135 | static DEVICE_ATTR(ports_msignals, S_IRUSR, dgap_ports_msignals_show, NULL); | |
6136 | ||
7568f7d3 MH |
6137 | static ssize_t dgap_ports_iflag_show(struct device *p, struct device_attribute *attr, char *buf) |
6138 | { | |
6139 | struct board_t *bd; | |
6140 | int count = 0; | |
6141 | int i = 0; | |
6142 | ||
3eb14151 MH |
6143 | bd = dgap_verify_board(p); |
6144 | if (!bd) | |
6145 | return 0; | |
7568f7d3 | 6146 | |
305ec874 | 6147 | for (i = 0; i < bd->nasync; i++) |
7568f7d3 MH |
6148 | count += snprintf(buf + count, PAGE_SIZE - count, "%d %x\n", |
6149 | bd->channels[i]->ch_portnum, bd->channels[i]->ch_c_iflag); | |
7568f7d3 MH |
6150 | return count; |
6151 | } | |
6152 | static DEVICE_ATTR(ports_iflag, S_IRUSR, dgap_ports_iflag_show, NULL); | |
6153 | ||
7568f7d3 MH |
6154 | static ssize_t dgap_ports_cflag_show(struct device *p, struct device_attribute *attr, char *buf) |
6155 | { | |
6156 | struct board_t *bd; | |
6157 | int count = 0; | |
6158 | int i = 0; | |
6159 | ||
3eb14151 MH |
6160 | bd = dgap_verify_board(p); |
6161 | if (!bd) | |
6162 | return 0; | |
7568f7d3 | 6163 | |
305ec874 | 6164 | for (i = 0; i < bd->nasync; i++) |
7568f7d3 MH |
6165 | count += snprintf(buf + count, PAGE_SIZE - count, "%d %x\n", |
6166 | bd->channels[i]->ch_portnum, bd->channels[i]->ch_c_cflag); | |
7568f7d3 MH |
6167 | return count; |
6168 | } | |
6169 | static DEVICE_ATTR(ports_cflag, S_IRUSR, dgap_ports_cflag_show, NULL); | |
6170 | ||
7568f7d3 MH |
6171 | static ssize_t dgap_ports_oflag_show(struct device *p, struct device_attribute *attr, char *buf) |
6172 | { | |
6173 | struct board_t *bd; | |
6174 | int count = 0; | |
6175 | int i = 0; | |
6176 | ||
3eb14151 MH |
6177 | bd = dgap_verify_board(p); |
6178 | if (!bd) | |
6179 | return 0; | |
7568f7d3 | 6180 | |
305ec874 | 6181 | for (i = 0; i < bd->nasync; i++) |
7568f7d3 MH |
6182 | count += snprintf(buf + count, PAGE_SIZE - count, "%d %x\n", |
6183 | bd->channels[i]->ch_portnum, bd->channels[i]->ch_c_oflag); | |
7568f7d3 MH |
6184 | return count; |
6185 | } | |
6186 | static DEVICE_ATTR(ports_oflag, S_IRUSR, dgap_ports_oflag_show, NULL); | |
6187 | ||
7568f7d3 MH |
6188 | static ssize_t dgap_ports_lflag_show(struct device *p, struct device_attribute *attr, char *buf) |
6189 | { | |
6190 | struct board_t *bd; | |
6191 | int count = 0; | |
6192 | int i = 0; | |
6193 | ||
3eb14151 MH |
6194 | bd = dgap_verify_board(p); |
6195 | if (!bd) | |
6196 | return 0; | |
7568f7d3 | 6197 | |
305ec874 | 6198 | for (i = 0; i < bd->nasync; i++) |
7568f7d3 MH |
6199 | count += snprintf(buf + count, PAGE_SIZE - count, "%d %x\n", |
6200 | bd->channels[i]->ch_portnum, bd->channels[i]->ch_c_lflag); | |
7568f7d3 MH |
6201 | return count; |
6202 | } | |
6203 | static DEVICE_ATTR(ports_lflag, S_IRUSR, dgap_ports_lflag_show, NULL); | |
6204 | ||
7568f7d3 MH |
6205 | static ssize_t dgap_ports_digi_flag_show(struct device *p, struct device_attribute *attr, char *buf) |
6206 | { | |
6207 | struct board_t *bd; | |
6208 | int count = 0; | |
6209 | int i = 0; | |
6210 | ||
3eb14151 MH |
6211 | bd = dgap_verify_board(p); |
6212 | if (!bd) | |
6213 | return 0; | |
7568f7d3 | 6214 | |
305ec874 | 6215 | for (i = 0; i < bd->nasync; i++) |
7568f7d3 MH |
6216 | count += snprintf(buf + count, PAGE_SIZE - count, "%d %x\n", |
6217 | bd->channels[i]->ch_portnum, bd->channels[i]->ch_digi.digi_flags); | |
7568f7d3 MH |
6218 | return count; |
6219 | } | |
6220 | static DEVICE_ATTR(ports_digi_flag, S_IRUSR, dgap_ports_digi_flag_show, NULL); | |
6221 | ||
7568f7d3 MH |
6222 | static ssize_t dgap_ports_rxcount_show(struct device *p, struct device_attribute *attr, char *buf) |
6223 | { | |
6224 | struct board_t *bd; | |
6225 | int count = 0; | |
6226 | int i = 0; | |
6227 | ||
3eb14151 MH |
6228 | bd = dgap_verify_board(p); |
6229 | if (!bd) | |
6230 | return 0; | |
7568f7d3 | 6231 | |
305ec874 | 6232 | for (i = 0; i < bd->nasync; i++) |
7568f7d3 MH |
6233 | count += snprintf(buf + count, PAGE_SIZE - count, "%d %ld\n", |
6234 | bd->channels[i]->ch_portnum, bd->channels[i]->ch_rxcount); | |
7568f7d3 MH |
6235 | return count; |
6236 | } | |
6237 | static DEVICE_ATTR(ports_rxcount, S_IRUSR, dgap_ports_rxcount_show, NULL); | |
6238 | ||
7568f7d3 MH |
6239 | static ssize_t dgap_ports_txcount_show(struct device *p, struct device_attribute *attr, char *buf) |
6240 | { | |
6241 | struct board_t *bd; | |
6242 | int count = 0; | |
6243 | int i = 0; | |
6244 | ||
3eb14151 MH |
6245 | bd = dgap_verify_board(p); |
6246 | if (!bd) | |
6247 | return 0; | |
7568f7d3 | 6248 | |
305ec874 | 6249 | for (i = 0; i < bd->nasync; i++) |
7568f7d3 MH |
6250 | count += snprintf(buf + count, PAGE_SIZE - count, "%d %ld\n", |
6251 | bd->channels[i]->ch_portnum, bd->channels[i]->ch_txcount); | |
7568f7d3 MH |
6252 | return count; |
6253 | } | |
6254 | static DEVICE_ATTR(ports_txcount, S_IRUSR, dgap_ports_txcount_show, NULL); | |
6255 | ||
7568f7d3 MH |
6256 | /* this function creates the sys files that will export each signal status |
6257 | * to sysfs each value will be put in a separate filename | |
6258 | */ | |
fe0ef8e6 | 6259 | static void dgap_create_ports_sysfiles(struct board_t *bd) |
7568f7d3 | 6260 | { |
7568f7d3 | 6261 | dev_set_drvdata(&bd->pdev->dev, bd); |
434b679b MH |
6262 | device_create_file(&(bd->pdev->dev), &dev_attr_ports_state); |
6263 | device_create_file(&(bd->pdev->dev), &dev_attr_ports_baud); | |
6264 | device_create_file(&(bd->pdev->dev), &dev_attr_ports_msignals); | |
6265 | device_create_file(&(bd->pdev->dev), &dev_attr_ports_iflag); | |
6266 | device_create_file(&(bd->pdev->dev), &dev_attr_ports_cflag); | |
6267 | device_create_file(&(bd->pdev->dev), &dev_attr_ports_oflag); | |
6268 | device_create_file(&(bd->pdev->dev), &dev_attr_ports_lflag); | |
6269 | device_create_file(&(bd->pdev->dev), &dev_attr_ports_digi_flag); | |
6270 | device_create_file(&(bd->pdev->dev), &dev_attr_ports_rxcount); | |
6271 | device_create_file(&(bd->pdev->dev), &dev_attr_ports_txcount); | |
7568f7d3 MH |
6272 | } |
6273 | ||
7568f7d3 | 6274 | /* removes all the sys files created for that port */ |
fe0ef8e6 | 6275 | static void dgap_remove_ports_sysfiles(struct board_t *bd) |
7568f7d3 MH |
6276 | { |
6277 | device_remove_file(&(bd->pdev->dev), &dev_attr_ports_state); | |
6278 | device_remove_file(&(bd->pdev->dev), &dev_attr_ports_baud); | |
6279 | device_remove_file(&(bd->pdev->dev), &dev_attr_ports_msignals); | |
6280 | device_remove_file(&(bd->pdev->dev), &dev_attr_ports_iflag); | |
6281 | device_remove_file(&(bd->pdev->dev), &dev_attr_ports_cflag); | |
6282 | device_remove_file(&(bd->pdev->dev), &dev_attr_ports_oflag); | |
6283 | device_remove_file(&(bd->pdev->dev), &dev_attr_ports_lflag); | |
6284 | device_remove_file(&(bd->pdev->dev), &dev_attr_ports_digi_flag); | |
6285 | device_remove_file(&(bd->pdev->dev), &dev_attr_ports_rxcount); | |
6286 | device_remove_file(&(bd->pdev->dev), &dev_attr_ports_txcount); | |
6287 | } | |
6288 | ||
7568f7d3 MH |
6289 | static ssize_t dgap_tty_state_show(struct device *d, struct device_attribute *attr, char *buf) |
6290 | { | |
6291 | struct board_t *bd; | |
6292 | struct channel_t *ch; | |
6293 | struct un_t *un; | |
6294 | ||
6295 | if (!d) | |
cf42c34d | 6296 | return 0; |
7568f7d3 MH |
6297 | un = dev_get_drvdata(d); |
6298 | if (!un || un->magic != DGAP_UNIT_MAGIC) | |
cf42c34d | 6299 | return 0; |
7568f7d3 MH |
6300 | ch = un->un_ch; |
6301 | if (!ch || ch->magic != DGAP_CHANNEL_MAGIC) | |
cf42c34d | 6302 | return 0; |
7568f7d3 MH |
6303 | bd = ch->ch_bd; |
6304 | if (!bd || bd->magic != DGAP_BOARD_MAGIC) | |
cf42c34d | 6305 | return 0; |
7568f7d3 | 6306 | if (bd->state != BOARD_READY) |
cf42c34d | 6307 | return 0; |
7568f7d3 MH |
6308 | |
6309 | return snprintf(buf, PAGE_SIZE, "%s", un->un_open_count ? "Open" : "Closed"); | |
6310 | } | |
6311 | static DEVICE_ATTR(state, S_IRUSR, dgap_tty_state_show, NULL); | |
6312 | ||
7568f7d3 MH |
6313 | static ssize_t dgap_tty_baud_show(struct device *d, struct device_attribute *attr, char *buf) |
6314 | { | |
6315 | struct board_t *bd; | |
6316 | struct channel_t *ch; | |
6317 | struct un_t *un; | |
6318 | ||
6319 | if (!d) | |
cf42c34d | 6320 | return 0; |
7568f7d3 MH |
6321 | un = dev_get_drvdata(d); |
6322 | if (!un || un->magic != DGAP_UNIT_MAGIC) | |
cf42c34d | 6323 | return 0; |
7568f7d3 MH |
6324 | ch = un->un_ch; |
6325 | if (!ch || ch->magic != DGAP_CHANNEL_MAGIC) | |
cf42c34d | 6326 | return 0; |
7568f7d3 MH |
6327 | bd = ch->ch_bd; |
6328 | if (!bd || bd->magic != DGAP_BOARD_MAGIC) | |
cf42c34d | 6329 | return 0; |
7568f7d3 | 6330 | if (bd->state != BOARD_READY) |
cf42c34d | 6331 | return 0; |
7568f7d3 MH |
6332 | |
6333 | return snprintf(buf, PAGE_SIZE, "%d\n", ch->ch_baud_info); | |
6334 | } | |
6335 | static DEVICE_ATTR(baud, S_IRUSR, dgap_tty_baud_show, NULL); | |
6336 | ||
7568f7d3 MH |
6337 | static ssize_t dgap_tty_msignals_show(struct device *d, struct device_attribute *attr, char *buf) |
6338 | { | |
6339 | struct board_t *bd; | |
6340 | struct channel_t *ch; | |
6341 | struct un_t *un; | |
6342 | ||
6343 | if (!d) | |
cf42c34d | 6344 | return 0; |
7568f7d3 MH |
6345 | un = dev_get_drvdata(d); |
6346 | if (!un || un->magic != DGAP_UNIT_MAGIC) | |
cf42c34d | 6347 | return 0; |
7568f7d3 MH |
6348 | ch = un->un_ch; |
6349 | if (!ch || ch->magic != DGAP_CHANNEL_MAGIC) | |
cf42c34d | 6350 | return 0; |
7568f7d3 MH |
6351 | bd = ch->ch_bd; |
6352 | if (!bd || bd->magic != DGAP_BOARD_MAGIC) | |
cf42c34d | 6353 | return 0; |
7568f7d3 | 6354 | if (bd->state != BOARD_READY) |
cf42c34d | 6355 | return 0; |
7568f7d3 MH |
6356 | |
6357 | if (ch->ch_open_count) { | |
6358 | return snprintf(buf, PAGE_SIZE, "%s %s %s %s %s %s\n", | |
6359 | (ch->ch_mostat & UART_MCR_RTS) ? "RTS" : "", | |
6360 | (ch->ch_mistat & UART_MSR_CTS) ? "CTS" : "", | |
6361 | (ch->ch_mostat & UART_MCR_DTR) ? "DTR" : "", | |
6362 | (ch->ch_mistat & UART_MSR_DSR) ? "DSR" : "", | |
6363 | (ch->ch_mistat & UART_MSR_DCD) ? "DCD" : "", | |
6364 | (ch->ch_mistat & UART_MSR_RI) ? "RI" : ""); | |
6365 | } | |
6366 | return 0; | |
6367 | } | |
6368 | static DEVICE_ATTR(msignals, S_IRUSR, dgap_tty_msignals_show, NULL); | |
6369 | ||
7568f7d3 MH |
6370 | static ssize_t dgap_tty_iflag_show(struct device *d, struct device_attribute *attr, char *buf) |
6371 | { | |
6372 | struct board_t *bd; | |
6373 | struct channel_t *ch; | |
6374 | struct un_t *un; | |
6375 | ||
6376 | if (!d) | |
cf42c34d | 6377 | return 0; |
7568f7d3 MH |
6378 | un = dev_get_drvdata(d); |
6379 | if (!un || un->magic != DGAP_UNIT_MAGIC) | |
cf42c34d | 6380 | return 0; |
7568f7d3 MH |
6381 | ch = un->un_ch; |
6382 | if (!ch || ch->magic != DGAP_CHANNEL_MAGIC) | |
cf42c34d | 6383 | return 0; |
7568f7d3 MH |
6384 | bd = ch->ch_bd; |
6385 | if (!bd || bd->magic != DGAP_BOARD_MAGIC) | |
cf42c34d | 6386 | return 0; |
7568f7d3 | 6387 | if (bd->state != BOARD_READY) |
cf42c34d | 6388 | return 0; |
7568f7d3 MH |
6389 | |
6390 | return snprintf(buf, PAGE_SIZE, "%x\n", ch->ch_c_iflag); | |
6391 | } | |
6392 | static DEVICE_ATTR(iflag, S_IRUSR, dgap_tty_iflag_show, NULL); | |
6393 | ||
7568f7d3 MH |
6394 | static ssize_t dgap_tty_cflag_show(struct device *d, struct device_attribute *attr, char *buf) |
6395 | { | |
6396 | struct board_t *bd; | |
6397 | struct channel_t *ch; | |
6398 | struct un_t *un; | |
6399 | ||
6400 | if (!d) | |
cf42c34d | 6401 | return 0; |
7568f7d3 MH |
6402 | un = dev_get_drvdata(d); |
6403 | if (!un || un->magic != DGAP_UNIT_MAGIC) | |
cf42c34d | 6404 | return 0; |
7568f7d3 MH |
6405 | ch = un->un_ch; |
6406 | if (!ch || ch->magic != DGAP_CHANNEL_MAGIC) | |
cf42c34d | 6407 | return 0; |
7568f7d3 MH |
6408 | bd = ch->ch_bd; |
6409 | if (!bd || bd->magic != DGAP_BOARD_MAGIC) | |
cf42c34d | 6410 | return 0; |
7568f7d3 | 6411 | if (bd->state != BOARD_READY) |
cf42c34d | 6412 | return 0; |
7568f7d3 MH |
6413 | |
6414 | return snprintf(buf, PAGE_SIZE, "%x\n", ch->ch_c_cflag); | |
6415 | } | |
6416 | static DEVICE_ATTR(cflag, S_IRUSR, dgap_tty_cflag_show, NULL); | |
6417 | ||
7568f7d3 MH |
6418 | static ssize_t dgap_tty_oflag_show(struct device *d, struct device_attribute *attr, char *buf) |
6419 | { | |
6420 | struct board_t *bd; | |
6421 | struct channel_t *ch; | |
6422 | struct un_t *un; | |
6423 | ||
6424 | if (!d) | |
cf42c34d | 6425 | return 0; |
7568f7d3 MH |
6426 | un = dev_get_drvdata(d); |
6427 | if (!un || un->magic != DGAP_UNIT_MAGIC) | |
cf42c34d | 6428 | return 0; |
7568f7d3 MH |
6429 | ch = un->un_ch; |
6430 | if (!ch || ch->magic != DGAP_CHANNEL_MAGIC) | |
cf42c34d | 6431 | return 0; |
7568f7d3 MH |
6432 | bd = ch->ch_bd; |
6433 | if (!bd || bd->magic != DGAP_BOARD_MAGIC) | |
cf42c34d | 6434 | return 0; |
7568f7d3 | 6435 | if (bd->state != BOARD_READY) |
cf42c34d | 6436 | return 0; |
7568f7d3 MH |
6437 | |
6438 | return snprintf(buf, PAGE_SIZE, "%x\n", ch->ch_c_oflag); | |
6439 | } | |
6440 | static DEVICE_ATTR(oflag, S_IRUSR, dgap_tty_oflag_show, NULL); | |
6441 | ||
7568f7d3 MH |
6442 | static ssize_t dgap_tty_lflag_show(struct device *d, struct device_attribute *attr, char *buf) |
6443 | { | |
6444 | struct board_t *bd; | |
6445 | struct channel_t *ch; | |
6446 | struct un_t *un; | |
6447 | ||
6448 | if (!d) | |
cf42c34d | 6449 | return 0; |
7568f7d3 MH |
6450 | un = dev_get_drvdata(d); |
6451 | if (!un || un->magic != DGAP_UNIT_MAGIC) | |
cf42c34d | 6452 | return 0; |
7568f7d3 MH |
6453 | ch = un->un_ch; |
6454 | if (!ch || ch->magic != DGAP_CHANNEL_MAGIC) | |
cf42c34d | 6455 | return 0; |
7568f7d3 MH |
6456 | bd = ch->ch_bd; |
6457 | if (!bd || bd->magic != DGAP_BOARD_MAGIC) | |
cf42c34d | 6458 | return 0; |
7568f7d3 | 6459 | if (bd->state != BOARD_READY) |
cf42c34d | 6460 | return 0; |
7568f7d3 MH |
6461 | |
6462 | return snprintf(buf, PAGE_SIZE, "%x\n", ch->ch_c_lflag); | |
6463 | } | |
6464 | static DEVICE_ATTR(lflag, S_IRUSR, dgap_tty_lflag_show, NULL); | |
6465 | ||
7568f7d3 MH |
6466 | static ssize_t dgap_tty_digi_flag_show(struct device *d, struct device_attribute *attr, char *buf) |
6467 | { | |
6468 | struct board_t *bd; | |
6469 | struct channel_t *ch; | |
6470 | struct un_t *un; | |
6471 | ||
6472 | if (!d) | |
cf42c34d | 6473 | return 0; |
7568f7d3 MH |
6474 | un = dev_get_drvdata(d); |
6475 | if (!un || un->magic != DGAP_UNIT_MAGIC) | |
cf42c34d | 6476 | return 0; |
7568f7d3 MH |
6477 | ch = un->un_ch; |
6478 | if (!ch || ch->magic != DGAP_CHANNEL_MAGIC) | |
cf42c34d | 6479 | return 0; |
7568f7d3 MH |
6480 | bd = ch->ch_bd; |
6481 | if (!bd || bd->magic != DGAP_BOARD_MAGIC) | |
cf42c34d | 6482 | return 0; |
7568f7d3 | 6483 | if (bd->state != BOARD_READY) |
cf42c34d | 6484 | return 0; |
7568f7d3 MH |
6485 | |
6486 | return snprintf(buf, PAGE_SIZE, "%x\n", ch->ch_digi.digi_flags); | |
6487 | } | |
6488 | static DEVICE_ATTR(digi_flag, S_IRUSR, dgap_tty_digi_flag_show, NULL); | |
6489 | ||
7568f7d3 MH |
6490 | static ssize_t dgap_tty_rxcount_show(struct device *d, struct device_attribute *attr, char *buf) |
6491 | { | |
6492 | struct board_t *bd; | |
6493 | struct channel_t *ch; | |
6494 | struct un_t *un; | |
6495 | ||
6496 | if (!d) | |
cf42c34d | 6497 | return 0; |
7568f7d3 MH |
6498 | un = dev_get_drvdata(d); |
6499 | if (!un || un->magic != DGAP_UNIT_MAGIC) | |
cf42c34d | 6500 | return 0; |
7568f7d3 MH |
6501 | ch = un->un_ch; |
6502 | if (!ch || ch->magic != DGAP_CHANNEL_MAGIC) | |
cf42c34d | 6503 | return 0; |
7568f7d3 MH |
6504 | bd = ch->ch_bd; |
6505 | if (!bd || bd->magic != DGAP_BOARD_MAGIC) | |
cf42c34d | 6506 | return 0; |
7568f7d3 | 6507 | if (bd->state != BOARD_READY) |
cf42c34d | 6508 | return 0; |
7568f7d3 MH |
6509 | |
6510 | return snprintf(buf, PAGE_SIZE, "%ld\n", ch->ch_rxcount); | |
6511 | } | |
6512 | static DEVICE_ATTR(rxcount, S_IRUSR, dgap_tty_rxcount_show, NULL); | |
6513 | ||
7568f7d3 MH |
6514 | static ssize_t dgap_tty_txcount_show(struct device *d, struct device_attribute *attr, char *buf) |
6515 | { | |
6516 | struct board_t *bd; | |
6517 | struct channel_t *ch; | |
6518 | struct un_t *un; | |
6519 | ||
6520 | if (!d) | |
cf42c34d | 6521 | return 0; |
7568f7d3 MH |
6522 | un = dev_get_drvdata(d); |
6523 | if (!un || un->magic != DGAP_UNIT_MAGIC) | |
cf42c34d | 6524 | return 0; |
7568f7d3 MH |
6525 | ch = un->un_ch; |
6526 | if (!ch || ch->magic != DGAP_CHANNEL_MAGIC) | |
cf42c34d | 6527 | return 0; |
7568f7d3 MH |
6528 | bd = ch->ch_bd; |
6529 | if (!bd || bd->magic != DGAP_BOARD_MAGIC) | |
cf42c34d | 6530 | return 0; |
7568f7d3 | 6531 | if (bd->state != BOARD_READY) |
cf42c34d | 6532 | return 0; |
7568f7d3 MH |
6533 | |
6534 | return snprintf(buf, PAGE_SIZE, "%ld\n", ch->ch_txcount); | |
6535 | } | |
6536 | static DEVICE_ATTR(txcount, S_IRUSR, dgap_tty_txcount_show, NULL); | |
6537 | ||
7568f7d3 MH |
6538 | static ssize_t dgap_tty_name_show(struct device *d, struct device_attribute *attr, char *buf) |
6539 | { | |
6540 | struct board_t *bd; | |
6541 | struct channel_t *ch; | |
6542 | struct un_t *un; | |
6543 | int cn; | |
6544 | int bn; | |
6545 | struct cnode *cptr = NULL; | |
6546 | int found = FALSE; | |
6547 | int ncount = 0; | |
6548 | int starto = 0; | |
6549 | int i = 0; | |
6550 | ||
6551 | if (!d) | |
cf42c34d | 6552 | return 0; |
7568f7d3 MH |
6553 | un = dev_get_drvdata(d); |
6554 | if (!un || un->magic != DGAP_UNIT_MAGIC) | |
cf42c34d | 6555 | return 0; |
7568f7d3 MH |
6556 | ch = un->un_ch; |
6557 | if (!ch || ch->magic != DGAP_CHANNEL_MAGIC) | |
cf42c34d | 6558 | return 0; |
7568f7d3 MH |
6559 | bd = ch->ch_bd; |
6560 | if (!bd || bd->magic != DGAP_BOARD_MAGIC) | |
cf42c34d | 6561 | return 0; |
7568f7d3 | 6562 | if (bd->state != BOARD_READY) |
cf42c34d | 6563 | return 0; |
7568f7d3 | 6564 | |
7d6069d7 | 6565 | bn = bd->boardnum; |
7568f7d3 MH |
6566 | cn = ch->ch_portnum; |
6567 | ||
6568 | for (cptr = bd->bd_config; cptr; cptr = cptr->next) { | |
6569 | ||
6570 | if ((cptr->type == BNODE) && | |
6571 | ((cptr->u.board.type == APORT2_920P) || (cptr->u.board.type == APORT4_920P) || | |
6572 | (cptr->u.board.type == APORT8_920P) || (cptr->u.board.type == PAPORT4) || | |
6573 | (cptr->u.board.type == PAPORT8))) { | |
6574 | ||
6575 | found = TRUE; | |
6576 | if (cptr->u.board.v_start) | |
6577 | starto = cptr->u.board.start; | |
6578 | else | |
6579 | starto = 1; | |
6580 | } | |
6581 | ||
6582 | if (cptr->type == TNODE && found == TRUE) { | |
6583 | char *ptr1; | |
6584 | if (strstr(cptr->u.ttyname, "tty")) { | |
6585 | ptr1 = cptr->u.ttyname; | |
6586 | ptr1 += 3; | |
305ec874 | 6587 | } else |
7568f7d3 | 6588 | ptr1 = cptr->u.ttyname; |
7568f7d3 MH |
6589 | |
6590 | for (i = 0; i < dgap_config_get_number_of_ports(bd); i++) { | |
305ec874 | 6591 | if (cn == i) |
7568f7d3 MH |
6592 | return snprintf(buf, PAGE_SIZE, "%s%s%02d\n", |
6593 | (un->un_type == DGAP_PRINT) ? "pr" : "tty", | |
6594 | ptr1, i + starto); | |
7568f7d3 MH |
6595 | } |
6596 | } | |
6597 | ||
6598 | if (cptr->type == CNODE) { | |
6599 | ||
6600 | for (i = 0; i < cptr->u.conc.nport; i++) { | |
305ec874 | 6601 | if (cn == (i + ncount)) |
7568f7d3 MH |
6602 | |
6603 | return snprintf(buf, PAGE_SIZE, "%s%s%02d\n", | |
6604 | (un->un_type == DGAP_PRINT) ? "pr" : "tty", | |
6605 | cptr->u.conc.id, | |
6606 | i + (cptr->u.conc.v_start ? cptr->u.conc.start : 1)); | |
7568f7d3 MH |
6607 | } |
6608 | ||
6609 | ncount += cptr->u.conc.nport; | |
6610 | } | |
6611 | ||
6612 | if (cptr->type == MNODE) { | |
6613 | ||
6614 | for (i = 0; i < cptr->u.module.nport; i++) { | |
305ec874 | 6615 | if (cn == (i + ncount)) |
7568f7d3 MH |
6616 | return snprintf(buf, PAGE_SIZE, "%s%s%02d\n", |
6617 | (un->un_type == DGAP_PRINT) ? "pr" : "tty", | |
6618 | cptr->u.module.id, | |
6619 | i + (cptr->u.module.v_start ? cptr->u.module.start : 1)); | |
7568f7d3 MH |
6620 | } |
6621 | ||
6622 | ncount += cptr->u.module.nport; | |
6623 | ||
6624 | } | |
6625 | } | |
6626 | ||
6627 | return snprintf(buf, PAGE_SIZE, "%s_dgap_%d_%d\n", | |
6628 | (un->un_type == DGAP_PRINT) ? "pr" : "tty", bn, cn); | |
6629 | ||
6630 | } | |
6631 | static DEVICE_ATTR(custom_name, S_IRUSR, dgap_tty_name_show, NULL); | |
6632 | ||
7568f7d3 MH |
6633 | static struct attribute *dgap_sysfs_tty_entries[] = { |
6634 | &dev_attr_state.attr, | |
6635 | &dev_attr_baud.attr, | |
6636 | &dev_attr_msignals.attr, | |
6637 | &dev_attr_iflag.attr, | |
6638 | &dev_attr_cflag.attr, | |
6639 | &dev_attr_oflag.attr, | |
6640 | &dev_attr_lflag.attr, | |
6641 | &dev_attr_digi_flag.attr, | |
6642 | &dev_attr_rxcount.attr, | |
6643 | &dev_attr_txcount.attr, | |
6644 | &dev_attr_custom_name.attr, | |
6645 | NULL | |
6646 | }; | |
6647 | ||
7568f7d3 MH |
6648 | static struct attribute_group dgap_tty_attribute_group = { |
6649 | .name = NULL, | |
6650 | .attrs = dgap_sysfs_tty_entries, | |
6651 | }; | |
6652 | ||
fe0ef8e6 | 6653 | static void dgap_create_tty_sysfs(struct un_t *un, struct device *c) |
7568f7d3 MH |
6654 | { |
6655 | int ret; | |
6656 | ||
6657 | ret = sysfs_create_group(&c->kobj, &dgap_tty_attribute_group); | |
54794d19 | 6658 | if (ret) |
7568f7d3 | 6659 | return; |
7568f7d3 MH |
6660 | |
6661 | dev_set_drvdata(c, un); | |
6662 | ||
6663 | } | |
6664 | ||
fe0ef8e6 | 6665 | static void dgap_remove_tty_sysfs(struct device *c) |
7568f7d3 MH |
6666 | { |
6667 | sysfs_remove_group(&c->kobj, &dgap_tty_attribute_group); | |
6668 | } | |
69edaa21 MH |
6669 | |
6670 | /* | |
6671 | * Parse a configuration file read into memory as a string. | |
6672 | */ | |
fe0ef8e6 | 6673 | static int dgap_parsefile(char **in, int Remove) |
69edaa21 MH |
6674 | { |
6675 | struct cnode *p, *brd, *line, *conc; | |
6676 | int rc; | |
6677 | char *s = NULL, *s2 = NULL; | |
6678 | int linecnt = 0; | |
6679 | ||
6680 | p = &dgap_head; | |
6681 | brd = line = conc = NULL; | |
6682 | ||
6683 | /* perhaps we are adding to an existing list? */ | |
305ec874 | 6684 | while (p->next != NULL) |
69edaa21 | 6685 | p = p->next; |
69edaa21 MH |
6686 | |
6687 | /* file must start with a BEGIN */ | |
b115b024 | 6688 | while ((rc = dgap_gettok(in, p)) != BEGIN) { |
69edaa21 MH |
6689 | if (rc == 0) { |
6690 | dgap_err("unexpected EOF"); | |
cf42c34d | 6691 | return -1; |
69edaa21 MH |
6692 | } |
6693 | } | |
6694 | ||
b115b024 MH |
6695 | for (; ;) { |
6696 | rc = dgap_gettok(in, p); | |
69edaa21 MH |
6697 | if (rc == 0) { |
6698 | dgap_err("unexpected EOF"); | |
cf42c34d | 6699 | return -1; |
69edaa21 MH |
6700 | } |
6701 | ||
6702 | switch (rc) { | |
6703 | case 0: | |
6704 | dgap_err("unexpected end of file"); | |
cf42c34d | 6705 | return -1; |
69edaa21 MH |
6706 | |
6707 | case BEGIN: /* should only be 1 begin */ | |
6708 | dgap_err("unexpected config_begin\n"); | |
cf42c34d | 6709 | return -1; |
69edaa21 MH |
6710 | |
6711 | case END: | |
cf42c34d | 6712 | return 0; |
69edaa21 MH |
6713 | |
6714 | case BOARD: /* board info */ | |
6715 | if (dgap_checknode(p)) | |
cf42c34d | 6716 | return -1; |
d1c3c6f5 MH |
6717 | p->next = dgap_newnode(BNODE); |
6718 | if (!p->next) { | |
69edaa21 | 6719 | dgap_err("out of memory"); |
cf42c34d | 6720 | return -1; |
69edaa21 MH |
6721 | } |
6722 | p = p->next; | |
6723 | ||
6724 | p->u.board.status = dgap_savestring("No"); | |
6725 | line = conc = NULL; | |
6726 | brd = p; | |
6727 | linecnt = -1; | |
6728 | break; | |
6729 | ||
6730 | case APORT2_920P: /* AccelePort_4 */ | |
6731 | if (p->type != BNODE) { | |
6732 | dgap_err("unexpected Digi_2r_920 string"); | |
cf42c34d | 6733 | return -1; |
69edaa21 MH |
6734 | } |
6735 | p->u.board.type = APORT2_920P; | |
6736 | p->u.board.v_type = 1; | |
69edaa21 MH |
6737 | break; |
6738 | ||
6739 | case APORT4_920P: /* AccelePort_4 */ | |
6740 | if (p->type != BNODE) { | |
6741 | dgap_err("unexpected Digi_4r_920 string"); | |
cf42c34d | 6742 | return -1; |
69edaa21 MH |
6743 | } |
6744 | p->u.board.type = APORT4_920P; | |
6745 | p->u.board.v_type = 1; | |
69edaa21 MH |
6746 | break; |
6747 | ||
6748 | case APORT8_920P: /* AccelePort_8 */ | |
6749 | if (p->type != BNODE) { | |
6750 | dgap_err("unexpected Digi_8r_920 string"); | |
cf42c34d | 6751 | return -1; |
69edaa21 MH |
6752 | } |
6753 | p->u.board.type = APORT8_920P; | |
6754 | p->u.board.v_type = 1; | |
69edaa21 MH |
6755 | break; |
6756 | ||
6757 | case PAPORT4: /* AccelePort_4 PCI */ | |
6758 | if (p->type != BNODE) { | |
6759 | dgap_err("unexpected Digi_4r(PCI) string"); | |
cf42c34d | 6760 | return -1; |
69edaa21 MH |
6761 | } |
6762 | p->u.board.type = PAPORT4; | |
6763 | p->u.board.v_type = 1; | |
69edaa21 MH |
6764 | break; |
6765 | ||
6766 | case PAPORT8: /* AccelePort_8 PCI */ | |
6767 | if (p->type != BNODE) { | |
6768 | dgap_err("unexpected Digi_8r string"); | |
cf42c34d | 6769 | return -1; |
69edaa21 MH |
6770 | } |
6771 | p->u.board.type = PAPORT8; | |
6772 | p->u.board.v_type = 1; | |
69edaa21 MH |
6773 | break; |
6774 | ||
6775 | case PCX: /* PCI C/X */ | |
6776 | if (p->type != BNODE) { | |
6777 | dgap_err("unexpected Digi_C/X_(PCI) string"); | |
cf42c34d | 6778 | return -1; |
69edaa21 MH |
6779 | } |
6780 | p->u.board.type = PCX; | |
6781 | p->u.board.v_type = 1; | |
6782 | p->u.board.conc1 = 0; | |
6783 | p->u.board.conc2 = 0; | |
6784 | p->u.board.module1 = 0; | |
6785 | p->u.board.module2 = 0; | |
69edaa21 MH |
6786 | break; |
6787 | ||
6788 | case PEPC: /* PCI EPC/X */ | |
6789 | if (p->type != BNODE) { | |
6790 | dgap_err("unexpected \"Digi_EPC/X_(PCI)\" string"); | |
cf42c34d | 6791 | return -1; |
69edaa21 MH |
6792 | } |
6793 | p->u.board.type = PEPC; | |
6794 | p->u.board.v_type = 1; | |
6795 | p->u.board.conc1 = 0; | |
6796 | p->u.board.conc2 = 0; | |
6797 | p->u.board.module1 = 0; | |
6798 | p->u.board.module2 = 0; | |
69edaa21 MH |
6799 | break; |
6800 | ||
6801 | case PPCM: /* PCI/Xem */ | |
6802 | if (p->type != BNODE) { | |
6803 | dgap_err("unexpected PCI/Xem string"); | |
cf42c34d | 6804 | return -1; |
69edaa21 MH |
6805 | } |
6806 | p->u.board.type = PPCM; | |
6807 | p->u.board.v_type = 1; | |
6808 | p->u.board.conc1 = 0; | |
6809 | p->u.board.conc2 = 0; | |
69edaa21 MH |
6810 | break; |
6811 | ||
6812 | case IO: /* i/o port */ | |
6813 | if (p->type != BNODE) { | |
6814 | dgap_err("IO port only vaild for boards"); | |
cf42c34d | 6815 | return -1; |
69edaa21 MH |
6816 | } |
6817 | s = dgap_getword(in); | |
6818 | if (s == NULL) { | |
6819 | dgap_err("unexpected end of file"); | |
cf42c34d | 6820 | return -1; |
69edaa21 MH |
6821 | } |
6822 | p->u.board.portstr = dgap_savestring(s); | |
6823 | p->u.board.port = (short)simple_strtol(s, &s2, 0); | |
6824 | if ((short)strlen(s) > (short)(s2 - s)) { | |
6825 | dgap_err("bad number for IO port"); | |
cf42c34d | 6826 | return -1; |
69edaa21 MH |
6827 | } |
6828 | p->u.board.v_port = 1; | |
69edaa21 MH |
6829 | break; |
6830 | ||
6831 | case MEM: /* memory address */ | |
6832 | if (p->type != BNODE) { | |
6833 | dgap_err("memory address only vaild for boards"); | |
cf42c34d | 6834 | return -1; |
69edaa21 MH |
6835 | } |
6836 | s = dgap_getword(in); | |
6837 | if (s == NULL) { | |
6838 | dgap_err("unexpected end of file"); | |
cf42c34d | 6839 | return -1; |
69edaa21 MH |
6840 | } |
6841 | p->u.board.addrstr = dgap_savestring(s); | |
6842 | p->u.board.addr = simple_strtoul(s, &s2, 0); | |
6843 | if ((int)strlen(s) > (int)(s2 - s)) { | |
6844 | dgap_err("bad number for memory address"); | |
cf42c34d | 6845 | return -1; |
69edaa21 MH |
6846 | } |
6847 | p->u.board.v_addr = 1; | |
69edaa21 MH |
6848 | break; |
6849 | ||
6850 | case PCIINFO: /* pci information */ | |
6851 | if (p->type != BNODE) { | |
6852 | dgap_err("memory address only vaild for boards"); | |
cf42c34d | 6853 | return -1; |
69edaa21 MH |
6854 | } |
6855 | s = dgap_getword(in); | |
6856 | if (s == NULL) { | |
6857 | dgap_err("unexpected end of file"); | |
cf42c34d | 6858 | return -1; |
69edaa21 MH |
6859 | } |
6860 | p->u.board.pcibusstr = dgap_savestring(s); | |
6861 | p->u.board.pcibus = simple_strtoul(s, &s2, 0); | |
6862 | if ((int)strlen(s) > (int)(s2 - s)) { | |
6863 | dgap_err("bad number for pci bus"); | |
cf42c34d | 6864 | return -1; |
69edaa21 MH |
6865 | } |
6866 | p->u.board.v_pcibus = 1; | |
6867 | s = dgap_getword(in); | |
6868 | if (s == NULL) { | |
6869 | dgap_err("unexpected end of file"); | |
cf42c34d | 6870 | return -1; |
69edaa21 MH |
6871 | } |
6872 | p->u.board.pcislotstr = dgap_savestring(s); | |
6873 | p->u.board.pcislot = simple_strtoul(s, &s2, 0); | |
6874 | if ((int)strlen(s) > (int)(s2 - s)) { | |
6875 | dgap_err("bad number for pci slot"); | |
cf42c34d | 6876 | return -1; |
69edaa21 MH |
6877 | } |
6878 | p->u.board.v_pcislot = 1; | |
69edaa21 MH |
6879 | break; |
6880 | ||
6881 | case METHOD: | |
6882 | if (p->type != BNODE) { | |
6883 | dgap_err("install method only vaild for boards"); | |
cf42c34d | 6884 | return -1; |
69edaa21 MH |
6885 | } |
6886 | s = dgap_getword(in); | |
6887 | if (s == NULL) { | |
6888 | dgap_err("unexpected end of file"); | |
cf42c34d | 6889 | return -1; |
69edaa21 MH |
6890 | } |
6891 | p->u.board.method = dgap_savestring(s); | |
6892 | p->u.board.v_method = 1; | |
69edaa21 MH |
6893 | break; |
6894 | ||
6895 | case STATUS: | |
6896 | if (p->type != BNODE) { | |
6897 | dgap_err("config status only vaild for boards"); | |
cf42c34d | 6898 | return -1; |
69edaa21 MH |
6899 | } |
6900 | s = dgap_getword(in); | |
6901 | if (s == NULL) { | |
6902 | dgap_err("unexpected end of file"); | |
cf42c34d | 6903 | return -1; |
69edaa21 MH |
6904 | } |
6905 | p->u.board.status = dgap_savestring(s); | |
69edaa21 MH |
6906 | break; |
6907 | ||
6908 | case NPORTS: /* number of ports */ | |
6909 | if (p->type == BNODE) { | |
6910 | s = dgap_getword(in); | |
6911 | if (s == NULL) { | |
6912 | dgap_err("unexpected end of file"); | |
cf42c34d | 6913 | return -1; |
69edaa21 MH |
6914 | } |
6915 | p->u.board.nport = (char)simple_strtol(s, &s2, 0); | |
6916 | if ((int)strlen(s) > (int)(s2 - s)) { | |
6917 | dgap_err("bad number for number of ports"); | |
cf42c34d | 6918 | return -1; |
69edaa21 MH |
6919 | } |
6920 | p->u.board.v_nport = 1; | |
6921 | } else if (p->type == CNODE) { | |
6922 | s = dgap_getword(in); | |
6923 | if (s == NULL) { | |
6924 | dgap_err("unexpected end of file"); | |
cf42c34d | 6925 | return -1; |
69edaa21 MH |
6926 | } |
6927 | p->u.conc.nport = (char)simple_strtol(s, &s2, 0); | |
6928 | if ((int)strlen(s) > (int)(s2 - s)) { | |
6929 | dgap_err("bad number for number of ports"); | |
cf42c34d | 6930 | return -1; |
69edaa21 MH |
6931 | } |
6932 | p->u.conc.v_nport = 1; | |
6933 | } else if (p->type == MNODE) { | |
6934 | s = dgap_getword(in); | |
6935 | if (s == NULL) { | |
6936 | dgap_err("unexpected end of file"); | |
cf42c34d | 6937 | return -1; |
69edaa21 MH |
6938 | } |
6939 | p->u.module.nport = (char)simple_strtol(s, &s2, 0); | |
6940 | if ((int)strlen(s) > (int)(s2 - s)) { | |
6941 | dgap_err("bad number for number of ports"); | |
cf42c34d | 6942 | return -1; |
69edaa21 MH |
6943 | } |
6944 | p->u.module.v_nport = 1; | |
6945 | } else { | |
6946 | dgap_err("nports only valid for concentrators or modules"); | |
cf42c34d | 6947 | return -1; |
69edaa21 | 6948 | } |
69edaa21 MH |
6949 | break; |
6950 | ||
6951 | case ID: /* letter ID used in tty name */ | |
6952 | s = dgap_getword(in); | |
6953 | if (s == NULL) { | |
6954 | dgap_err("unexpected end of file"); | |
cf42c34d | 6955 | return -1; |
69edaa21 MH |
6956 | } |
6957 | ||
6958 | p->u.board.status = dgap_savestring(s); | |
6959 | ||
6960 | if (p->type == CNODE) { | |
6961 | p->u.conc.id = dgap_savestring(s); | |
6962 | p->u.conc.v_id = 1; | |
6963 | } else if (p->type == MNODE) { | |
6964 | p->u.module.id = dgap_savestring(s); | |
6965 | p->u.module.v_id = 1; | |
6966 | } else { | |
6967 | dgap_err("id only valid for concentrators or modules"); | |
cf42c34d | 6968 | return -1; |
69edaa21 | 6969 | } |
69edaa21 MH |
6970 | break; |
6971 | ||
6972 | case STARTO: /* start offset of ID */ | |
6973 | if (p->type == BNODE) { | |
6974 | s = dgap_getword(in); | |
6975 | if (s == NULL) { | |
6976 | dgap_err("unexpected end of file"); | |
cf42c34d | 6977 | return -1; |
69edaa21 MH |
6978 | } |
6979 | p->u.board.start = simple_strtol(s, &s2, 0); | |
6980 | if ((int)strlen(s) > (int)(s2 - s)) { | |
6981 | dgap_err("bad number for start of tty count"); | |
cf42c34d | 6982 | return -1; |
69edaa21 MH |
6983 | } |
6984 | p->u.board.v_start = 1; | |
6985 | } else if (p->type == CNODE) { | |
6986 | s = dgap_getword(in); | |
6987 | if (s == NULL) { | |
6988 | dgap_err("unexpected end of file"); | |
cf42c34d | 6989 | return -1; |
69edaa21 MH |
6990 | } |
6991 | p->u.conc.start = simple_strtol(s, &s2, 0); | |
6992 | if ((int)strlen(s) > (int)(s2 - s)) { | |
6993 | dgap_err("bad number for start of tty count"); | |
cf42c34d | 6994 | return -1; |
69edaa21 MH |
6995 | } |
6996 | p->u.conc.v_start = 1; | |
6997 | } else if (p->type == MNODE) { | |
6998 | s = dgap_getword(in); | |
6999 | if (s == NULL) { | |
7000 | dgap_err("unexpected end of file"); | |
cf42c34d | 7001 | return -1; |
69edaa21 MH |
7002 | } |
7003 | p->u.module.start = simple_strtol(s, &s2, 0); | |
7004 | if ((int)strlen(s) > (int)(s2 - s)) { | |
7005 | dgap_err("bad number for start of tty count"); | |
cf42c34d | 7006 | return -1; |
69edaa21 MH |
7007 | } |
7008 | p->u.module.v_start = 1; | |
7009 | } else { | |
7010 | dgap_err("start only valid for concentrators or modules"); | |
cf42c34d | 7011 | return -1; |
69edaa21 | 7012 | } |
69edaa21 MH |
7013 | break; |
7014 | ||
7015 | case TTYN: /* tty name prefix */ | |
7016 | if (dgap_checknode(p)) | |
cf42c34d | 7017 | return -1; |
d1c3c6f5 MH |
7018 | p->next = dgap_newnode(TNODE); |
7019 | if (!p->next) { | |
69edaa21 | 7020 | dgap_err("out of memory"); |
cf42c34d | 7021 | return -1; |
69edaa21 MH |
7022 | } |
7023 | p = p->next; | |
d1c3c6f5 MH |
7024 | s = dgap_getword(in); |
7025 | if (!s) { | |
69edaa21 | 7026 | dgap_err("unexpeced end of file"); |
cf42c34d | 7027 | return -1; |
69edaa21 | 7028 | } |
d1c3c6f5 MH |
7029 | p->u.ttyname = dgap_savestring(s); |
7030 | if (!p->u.ttyname) { | |
69edaa21 | 7031 | dgap_err("out of memory"); |
cf42c34d | 7032 | return -1; |
69edaa21 | 7033 | } |
69edaa21 MH |
7034 | break; |
7035 | ||
7036 | case CU: /* cu name prefix */ | |
7037 | if (dgap_checknode(p)) | |
cf42c34d | 7038 | return -1; |
d1c3c6f5 MH |
7039 | p->next = dgap_newnode(CUNODE); |
7040 | if (!p->next) { | |
69edaa21 | 7041 | dgap_err("out of memory"); |
cf42c34d | 7042 | return -1; |
69edaa21 MH |
7043 | } |
7044 | p = p->next; | |
d1c3c6f5 MH |
7045 | s = dgap_getword(in); |
7046 | if (!s) { | |
69edaa21 | 7047 | dgap_err("unexpeced end of file"); |
cf42c34d | 7048 | return -1; |
69edaa21 | 7049 | } |
d1c3c6f5 MH |
7050 | p->u.cuname = dgap_savestring(s); |
7051 | if (!p->u.cuname) { | |
69edaa21 | 7052 | dgap_err("out of memory"); |
cf42c34d | 7053 | return -1; |
69edaa21 | 7054 | } |
69edaa21 MH |
7055 | break; |
7056 | ||
7057 | case LINE: /* line information */ | |
7058 | if (dgap_checknode(p)) | |
cf42c34d | 7059 | return -1; |
69edaa21 MH |
7060 | if (brd == NULL) { |
7061 | dgap_err("must specify board before line info"); | |
cf42c34d | 7062 | return -1; |
69edaa21 MH |
7063 | } |
7064 | switch (brd->u.board.type) { | |
7065 | case PPCM: | |
7066 | dgap_err("line not vaild for PC/em"); | |
cf42c34d | 7067 | return -1; |
69edaa21 | 7068 | } |
d1c3c6f5 MH |
7069 | p->next = dgap_newnode(LNODE); |
7070 | if (!p->next) { | |
69edaa21 | 7071 | dgap_err("out of memory"); |
cf42c34d | 7072 | return -1; |
69edaa21 MH |
7073 | } |
7074 | p = p->next; | |
7075 | conc = NULL; | |
7076 | line = p; | |
7077 | linecnt++; | |
69edaa21 MH |
7078 | break; |
7079 | ||
7080 | case CONC: /* concentrator information */ | |
7081 | if (dgap_checknode(p)) | |
cf42c34d | 7082 | return -1; |
69edaa21 MH |
7083 | if (line == NULL) { |
7084 | dgap_err("must specify line info before concentrator"); | |
cf42c34d | 7085 | return -1; |
69edaa21 | 7086 | } |
d1c3c6f5 MH |
7087 | p->next = dgap_newnode(CNODE); |
7088 | if (!p->next) { | |
69edaa21 | 7089 | dgap_err("out of memory"); |
cf42c34d | 7090 | return -1; |
69edaa21 MH |
7091 | } |
7092 | p = p->next; | |
7093 | conc = p; | |
7094 | if (linecnt) | |
7095 | brd->u.board.conc2++; | |
7096 | else | |
7097 | brd->u.board.conc1++; | |
7098 | ||
69edaa21 MH |
7099 | break; |
7100 | ||
7101 | case CX: /* c/x type concentrator */ | |
7102 | if (p->type != CNODE) { | |
7103 | dgap_err("cx only valid for concentrators"); | |
cf42c34d | 7104 | return -1; |
69edaa21 MH |
7105 | } |
7106 | p->u.conc.type = CX; | |
7107 | p->u.conc.v_type = 1; | |
69edaa21 MH |
7108 | break; |
7109 | ||
7110 | case EPC: /* epc type concentrator */ | |
7111 | if (p->type != CNODE) { | |
7112 | dgap_err("cx only valid for concentrators"); | |
cf42c34d | 7113 | return -1; |
69edaa21 MH |
7114 | } |
7115 | p->u.conc.type = EPC; | |
7116 | p->u.conc.v_type = 1; | |
69edaa21 MH |
7117 | break; |
7118 | ||
7119 | case MOD: /* EBI module */ | |
7120 | if (dgap_checknode(p)) | |
cf42c34d | 7121 | return -1; |
69edaa21 MH |
7122 | if (brd == NULL) { |
7123 | dgap_err("must specify board info before EBI modules"); | |
cf42c34d | 7124 | return -1; |
69edaa21 MH |
7125 | } |
7126 | switch (brd->u.board.type) { | |
7127 | case PPCM: | |
7128 | linecnt = 0; | |
7129 | break; | |
7130 | default: | |
7131 | if (conc == NULL) { | |
7132 | dgap_err("must specify concentrator info before EBI module"); | |
cf42c34d | 7133 | return -1; |
69edaa21 MH |
7134 | } |
7135 | } | |
d1c3c6f5 MH |
7136 | p->next = dgap_newnode(MNODE); |
7137 | if (!p->next) { | |
69edaa21 | 7138 | dgap_err("out of memory"); |
cf42c34d | 7139 | return -1; |
69edaa21 MH |
7140 | } |
7141 | p = p->next; | |
7142 | if (linecnt) | |
7143 | brd->u.board.module2++; | |
7144 | else | |
7145 | brd->u.board.module1++; | |
7146 | ||
69edaa21 MH |
7147 | break; |
7148 | ||
7149 | case PORTS: /* ports type EBI module */ | |
7150 | if (p->type != MNODE) { | |
7151 | dgap_err("ports only valid for EBI modules"); | |
cf42c34d | 7152 | return -1; |
69edaa21 MH |
7153 | } |
7154 | p->u.module.type = PORTS; | |
7155 | p->u.module.v_type = 1; | |
69edaa21 MH |
7156 | break; |
7157 | ||
7158 | case MODEM: /* ports type EBI module */ | |
7159 | if (p->type != MNODE) { | |
7160 | dgap_err("modem only valid for modem modules"); | |
cf42c34d | 7161 | return -1; |
69edaa21 MH |
7162 | } |
7163 | p->u.module.type = MODEM; | |
7164 | p->u.module.v_type = 1; | |
69edaa21 MH |
7165 | break; |
7166 | ||
7167 | case CABLE: | |
7168 | if (p->type == LNODE) { | |
d1c3c6f5 MH |
7169 | s = dgap_getword(in); |
7170 | if (!s) { | |
69edaa21 | 7171 | dgap_err("unexpected end of file"); |
cf42c34d | 7172 | return -1; |
69edaa21 MH |
7173 | } |
7174 | p->u.line.cable = dgap_savestring(s); | |
7175 | p->u.line.v_cable = 1; | |
7176 | } | |
69edaa21 MH |
7177 | break; |
7178 | ||
7179 | case SPEED: /* sync line speed indication */ | |
7180 | if (p->type == LNODE) { | |
7181 | s = dgap_getword(in); | |
7182 | if (s == NULL) { | |
7183 | dgap_err("unexpected end of file"); | |
cf42c34d | 7184 | return -1; |
69edaa21 MH |
7185 | } |
7186 | p->u.line.speed = (char)simple_strtol(s, &s2, 0); | |
7187 | if ((short)strlen(s) > (short)(s2 - s)) { | |
7188 | dgap_err("bad number for line speed"); | |
cf42c34d | 7189 | return -1; |
69edaa21 MH |
7190 | } |
7191 | p->u.line.v_speed = 1; | |
7192 | } else if (p->type == CNODE) { | |
7193 | s = dgap_getword(in); | |
7194 | if (s == NULL) { | |
7195 | dgap_err("unexpected end of file"); | |
cf42c34d | 7196 | return -1; |
69edaa21 MH |
7197 | } |
7198 | p->u.conc.speed = (char)simple_strtol(s, &s2, 0); | |
7199 | if ((short)strlen(s) > (short)(s2 - s)) { | |
7200 | dgap_err("bad number for line speed"); | |
cf42c34d | 7201 | return -1; |
69edaa21 MH |
7202 | } |
7203 | p->u.conc.v_speed = 1; | |
7204 | } else { | |
7205 | dgap_err("speed valid only for lines or concentrators."); | |
cf42c34d | 7206 | return -1; |
69edaa21 | 7207 | } |
69edaa21 MH |
7208 | break; |
7209 | ||
7210 | case CONNECT: | |
7211 | if (p->type == CNODE) { | |
d1c3c6f5 MH |
7212 | s = dgap_getword(in); |
7213 | if (!s) { | |
69edaa21 | 7214 | dgap_err("unexpected end of file"); |
cf42c34d | 7215 | return -1; |
69edaa21 MH |
7216 | } |
7217 | p->u.conc.connect = dgap_savestring(s); | |
7218 | p->u.conc.v_connect = 1; | |
7219 | } | |
69edaa21 MH |
7220 | break; |
7221 | case PRINT: /* transparent print name prefix */ | |
7222 | if (dgap_checknode(p)) | |
cf42c34d | 7223 | return -1; |
d1c3c6f5 MH |
7224 | p->next = dgap_newnode(PNODE); |
7225 | if (!p->next) { | |
69edaa21 | 7226 | dgap_err("out of memory"); |
cf42c34d | 7227 | return -1; |
69edaa21 MH |
7228 | } |
7229 | p = p->next; | |
d1c3c6f5 MH |
7230 | s = dgap_getword(in); |
7231 | if (!s) { | |
69edaa21 | 7232 | dgap_err("unexpeced end of file"); |
cf42c34d | 7233 | return -1; |
69edaa21 | 7234 | } |
d1c3c6f5 MH |
7235 | p->u.printname = dgap_savestring(s); |
7236 | if (!p->u.printname) { | |
69edaa21 | 7237 | dgap_err("out of memory"); |
cf42c34d | 7238 | return -1; |
69edaa21 | 7239 | } |
69edaa21 MH |
7240 | break; |
7241 | ||
7242 | case CMAJOR: /* major number */ | |
7243 | if (dgap_checknode(p)) | |
cf42c34d | 7244 | return -1; |
d1c3c6f5 MH |
7245 | p->next = dgap_newnode(JNODE); |
7246 | if (!p->next) { | |
69edaa21 | 7247 | dgap_err("out of memory"); |
cf42c34d | 7248 | return -1; |
69edaa21 MH |
7249 | } |
7250 | p = p->next; | |
7251 | s = dgap_getword(in); | |
7252 | if (s == NULL) { | |
7253 | dgap_err("unexpected end of file"); | |
cf42c34d | 7254 | return -1; |
69edaa21 MH |
7255 | } |
7256 | p->u.majornumber = simple_strtol(s, &s2, 0); | |
7257 | if ((int)strlen(s) > (int)(s2 - s)) { | |
7258 | dgap_err("bad number for major number"); | |
cf42c34d | 7259 | return -1; |
69edaa21 | 7260 | } |
69edaa21 MH |
7261 | break; |
7262 | ||
7263 | case ALTPIN: /* altpin setting */ | |
7264 | if (dgap_checknode(p)) | |
cf42c34d | 7265 | return -1; |
d1c3c6f5 MH |
7266 | p->next = dgap_newnode(ANODE); |
7267 | if (!p->next) { | |
69edaa21 | 7268 | dgap_err("out of memory"); |
cf42c34d | 7269 | return -1; |
69edaa21 MH |
7270 | } |
7271 | p = p->next; | |
7272 | s = dgap_getword(in); | |
7273 | if (s == NULL) { | |
7274 | dgap_err("unexpected end of file"); | |
cf42c34d | 7275 | return -1; |
69edaa21 MH |
7276 | } |
7277 | p->u.altpin = simple_strtol(s, &s2, 0); | |
7278 | if ((int)strlen(s) > (int)(s2 - s)) { | |
7279 | dgap_err("bad number for altpin"); | |
cf42c34d | 7280 | return -1; |
69edaa21 | 7281 | } |
69edaa21 MH |
7282 | break; |
7283 | ||
7284 | case USEINTR: /* enable interrupt setting */ | |
7285 | if (dgap_checknode(p)) | |
cf42c34d | 7286 | return -1; |
d1c3c6f5 MH |
7287 | p->next = dgap_newnode(INTRNODE); |
7288 | if (!p->next) { | |
69edaa21 | 7289 | dgap_err("out of memory"); |
cf42c34d | 7290 | return -1; |
69edaa21 MH |
7291 | } |
7292 | p = p->next; | |
7293 | s = dgap_getword(in); | |
7294 | if (s == NULL) { | |
7295 | dgap_err("unexpected end of file"); | |
cf42c34d | 7296 | return -1; |
69edaa21 MH |
7297 | } |
7298 | p->u.useintr = simple_strtol(s, &s2, 0); | |
7299 | if ((int)strlen(s) > (int)(s2 - s)) { | |
7300 | dgap_err("bad number for useintr"); | |
cf42c34d | 7301 | return -1; |
69edaa21 | 7302 | } |
69edaa21 MH |
7303 | break; |
7304 | ||
7305 | case TTSIZ: /* size of tty structure */ | |
7306 | if (dgap_checknode(p)) | |
cf42c34d | 7307 | return -1; |
d1c3c6f5 MH |
7308 | p->next = dgap_newnode(TSNODE); |
7309 | if (!p->next) { | |
69edaa21 | 7310 | dgap_err("out of memory"); |
cf42c34d | 7311 | return -1; |
69edaa21 MH |
7312 | } |
7313 | p = p->next; | |
7314 | s = dgap_getword(in); | |
7315 | if (s == NULL) { | |
7316 | dgap_err("unexpected end of file"); | |
cf42c34d | 7317 | return -1; |
69edaa21 MH |
7318 | } |
7319 | p->u.ttysize = simple_strtol(s, &s2, 0); | |
7320 | if ((int)strlen(s) > (int)(s2 - s)) { | |
7321 | dgap_err("bad number for ttysize"); | |
cf42c34d | 7322 | return -1; |
69edaa21 | 7323 | } |
69edaa21 MH |
7324 | break; |
7325 | ||
7326 | case CHSIZ: /* channel structure size */ | |
7327 | if (dgap_checknode(p)) | |
cf42c34d | 7328 | return -1; |
d1c3c6f5 MH |
7329 | p->next = dgap_newnode(CSNODE); |
7330 | if (!p->next) { | |
69edaa21 | 7331 | dgap_err("out of memory"); |
cf42c34d | 7332 | return -1; |
69edaa21 MH |
7333 | } |
7334 | p = p->next; | |
7335 | s = dgap_getword(in); | |
7336 | if (s == NULL) { | |
7337 | dgap_err("unexpected end of file"); | |
cf42c34d | 7338 | return -1; |
69edaa21 MH |
7339 | } |
7340 | p->u.chsize = simple_strtol(s, &s2, 0); | |
7341 | if ((int)strlen(s) > (int)(s2 - s)) { | |
7342 | dgap_err("bad number for chsize"); | |
cf42c34d | 7343 | return -1; |
69edaa21 | 7344 | } |
69edaa21 MH |
7345 | break; |
7346 | ||
7347 | case BSSIZ: /* board structure size */ | |
7348 | if (dgap_checknode(p)) | |
cf42c34d | 7349 | return -1; |
d1c3c6f5 MH |
7350 | p->next = dgap_newnode(BSNODE); |
7351 | if (!p->next) { | |
69edaa21 | 7352 | dgap_err("out of memory"); |
cf42c34d | 7353 | return -1; |
69edaa21 MH |
7354 | } |
7355 | p = p->next; | |
7356 | s = dgap_getword(in); | |
7357 | if (s == NULL) { | |
7358 | dgap_err("unexpected end of file"); | |
cf42c34d | 7359 | return -1; |
69edaa21 MH |
7360 | } |
7361 | p->u.bssize = simple_strtol(s, &s2, 0); | |
7362 | if ((int)strlen(s) > (int)(s2 - s)) { | |
7363 | dgap_err("bad number for bssize"); | |
cf42c34d | 7364 | return -1; |
69edaa21 | 7365 | } |
69edaa21 MH |
7366 | break; |
7367 | ||
7368 | case UNTSIZ: /* sched structure size */ | |
7369 | if (dgap_checknode(p)) | |
cf42c34d | 7370 | return -1; |
d1c3c6f5 MH |
7371 | p->next = dgap_newnode(USNODE); |
7372 | if (!p->next) { | |
69edaa21 | 7373 | dgap_err("out of memory"); |
cf42c34d | 7374 | return -1; |
69edaa21 MH |
7375 | } |
7376 | p = p->next; | |
7377 | s = dgap_getword(in); | |
7378 | if (s == NULL) { | |
7379 | dgap_err("unexpected end of file"); | |
cf42c34d | 7380 | return -1; |
69edaa21 MH |
7381 | } |
7382 | p->u.unsize = simple_strtol(s, &s2, 0); | |
7383 | if ((int)strlen(s) > (int)(s2 - s)) { | |
7384 | dgap_err("bad number for schedsize"); | |
cf42c34d | 7385 | return -1; |
69edaa21 | 7386 | } |
69edaa21 MH |
7387 | break; |
7388 | ||
7389 | case F2SIZ: /* f2200 structure size */ | |
7390 | if (dgap_checknode(p)) | |
cf42c34d | 7391 | return -1; |
d1c3c6f5 MH |
7392 | p->next = dgap_newnode(FSNODE); |
7393 | if (!p->next) { | |
69edaa21 | 7394 | dgap_err("out of memory"); |
cf42c34d | 7395 | return -1; |
69edaa21 MH |
7396 | } |
7397 | p = p->next; | |
7398 | s = dgap_getword(in); | |
7399 | if (s == NULL) { | |
7400 | dgap_err("unexpected end of file"); | |
cf42c34d | 7401 | return -1; |
69edaa21 MH |
7402 | } |
7403 | p->u.f2size = simple_strtol(s, &s2, 0); | |
7404 | if ((int)strlen(s) > (int)(s2 - s)) { | |
7405 | dgap_err("bad number for f2200size"); | |
cf42c34d | 7406 | return -1; |
69edaa21 | 7407 | } |
69edaa21 MH |
7408 | break; |
7409 | ||
7410 | case VPSIZ: /* vpix structure size */ | |
7411 | if (dgap_checknode(p)) | |
cf42c34d | 7412 | return -1; |
d1c3c6f5 MH |
7413 | p->next = dgap_newnode(VSNODE); |
7414 | if (!p->next) { | |
69edaa21 | 7415 | dgap_err("out of memory"); |
cf42c34d | 7416 | return -1; |
69edaa21 MH |
7417 | } |
7418 | p = p->next; | |
7419 | s = dgap_getword(in); | |
7420 | if (s == NULL) { | |
7421 | dgap_err("unexpected end of file"); | |
cf42c34d | 7422 | return -1; |
69edaa21 MH |
7423 | } |
7424 | p->u.vpixsize = simple_strtol(s, &s2, 0); | |
7425 | if ((int)strlen(s) > (int)(s2 - s)) { | |
7426 | dgap_err("bad number for vpixsize"); | |
cf42c34d | 7427 | return -1; |
69edaa21 | 7428 | } |
69edaa21 MH |
7429 | break; |
7430 | } | |
7431 | } | |
7432 | } | |
7433 | ||
69edaa21 MH |
7434 | /* |
7435 | * dgap_sindex: much like index(), but it looks for a match of any character in | |
7436 | * the group, and returns that position. If the first character is a ^, then | |
7437 | * this will match the first occurrence not in that group. | |
7438 | */ | |
9b073ac5 | 7439 | static char *dgap_sindex(char *string, char *group) |
69edaa21 MH |
7440 | { |
7441 | char *ptr; | |
7442 | ||
7443 | if (!string || !group) | |
7444 | return (char *) NULL; | |
7445 | ||
7446 | if (*group == '^') { | |
7447 | group++; | |
7448 | for (; *string; string++) { | |
7449 | for (ptr = group; *ptr; ptr++) { | |
7450 | if (*ptr == *string) | |
7451 | break; | |
7452 | } | |
7453 | if (*ptr == '\0') | |
7454 | return string; | |
7455 | } | |
305ec874 | 7456 | } else { |
69edaa21 MH |
7457 | for (; *string; string++) { |
7458 | for (ptr = group; *ptr; ptr++) { | |
7459 | if (*ptr == *string) | |
7460 | return string; | |
7461 | } | |
7462 | } | |
7463 | } | |
7464 | ||
7465 | return (char *) NULL; | |
7466 | } | |
7467 | ||
69edaa21 MH |
7468 | /* |
7469 | * Get a token from the input file; return 0 if end of file is reached | |
7470 | */ | |
7471 | static int dgap_gettok(char **in, struct cnode *p) | |
7472 | { | |
7473 | char *w; | |
7474 | struct toklist *t; | |
7475 | ||
7476 | if (strstr(dgap_cword, "boar")) { | |
7477 | w = dgap_getword(in); | |
7478 | snprintf(dgap_cword, MAXCWORD, "%s", w); | |
7479 | for (t = dgap_tlist; t->token != 0; t++) { | |
b115b024 | 7480 | if (!strcmp(w, t->string)) |
cf42c34d | 7481 | return t->token; |
69edaa21 MH |
7482 | } |
7483 | dgap_err("board !!type not specified"); | |
cf42c34d | 7484 | return 1; |
305ec874 | 7485 | } else { |
9b073ac5 | 7486 | while ((w = dgap_getword(in))) { |
69edaa21 MH |
7487 | snprintf(dgap_cword, MAXCWORD, "%s", w); |
7488 | for (t = dgap_tlist; t->token != 0; t++) { | |
b115b024 | 7489 | if (!strcmp(w, t->string)) |
cf42c34d | 7490 | return t->token; |
69edaa21 MH |
7491 | } |
7492 | } | |
cf42c34d | 7493 | return 0; |
69edaa21 MH |
7494 | } |
7495 | } | |
7496 | ||
69edaa21 MH |
7497 | /* |
7498 | * get a word from the input stream, also keep track of current line number. | |
7499 | * words are separated by whitespace. | |
7500 | */ | |
7501 | static char *dgap_getword(char **in) | |
7502 | { | |
7503 | char *ret_ptr = *in; | |
7504 | ||
7d6069d7 | 7505 | char *ptr = dgap_sindex(*in, " \t\n"); |
69edaa21 MH |
7506 | |
7507 | /* If no word found, return null */ | |
7508 | if (!ptr) | |
7509 | return NULL; | |
7510 | ||
7511 | /* Mark new location for our buffer */ | |
7512 | *ptr = '\0'; | |
7513 | *in = ptr + 1; | |
7514 | ||
7515 | /* Eat any extra spaces/tabs/newlines that might be present */ | |
7516 | while (*in && **in && ((**in == ' ') || (**in == '\t') || (**in == '\n'))) { | |
7517 | **in = '\0'; | |
7518 | *in = *in + 1; | |
7519 | } | |
7520 | ||
7521 | return ret_ptr; | |
7522 | } | |
7523 | ||
69edaa21 MH |
7524 | /* |
7525 | * print an error message, giving the line number in the file where | |
7526 | * the error occurred. | |
7527 | */ | |
7528 | static void dgap_err(char *s) | |
7529 | { | |
8cbb5e3f | 7530 | pr_err("dgap: parse: %s\n", s); |
69edaa21 MH |
7531 | } |
7532 | ||
69edaa21 MH |
7533 | /* |
7534 | * allocate a new configuration node of type t | |
7535 | */ | |
7536 | static struct cnode *dgap_newnode(int t) | |
7537 | { | |
7538 | struct cnode *n; | |
7539 | ||
7540 | n = kmalloc(sizeof(struct cnode), GFP_ATOMIC); | |
7541 | if (n != NULL) { | |
7542 | memset((char *)n, 0, sizeof(struct cnode)); | |
7543 | n->type = t; | |
7544 | } | |
cf42c34d | 7545 | return n; |
69edaa21 MH |
7546 | } |
7547 | ||
69edaa21 MH |
7548 | /* |
7549 | * dgap_checknode: see if all the necessary info has been supplied for a node | |
7550 | * before creating the next node. | |
7551 | */ | |
7552 | static int dgap_checknode(struct cnode *p) | |
7553 | { | |
7554 | switch (p->type) { | |
7555 | case BNODE: | |
7556 | if (p->u.board.v_type == 0) { | |
7557 | dgap_err("board type !not specified"); | |
cf42c34d | 7558 | return 1; |
69edaa21 MH |
7559 | } |
7560 | ||
cf42c34d | 7561 | return 0; |
69edaa21 MH |
7562 | |
7563 | case LNODE: | |
7564 | if (p->u.line.v_speed == 0) { | |
7565 | dgap_err("line speed not specified"); | |
cf42c34d | 7566 | return 1; |
69edaa21 | 7567 | } |
cf42c34d | 7568 | return 0; |
69edaa21 MH |
7569 | |
7570 | case CNODE: | |
7571 | if (p->u.conc.v_type == 0) { | |
7572 | dgap_err("concentrator type not specified"); | |
cf42c34d | 7573 | return 1; |
69edaa21 MH |
7574 | } |
7575 | if (p->u.conc.v_speed == 0) { | |
7576 | dgap_err("concentrator line speed not specified"); | |
cf42c34d | 7577 | return 1; |
69edaa21 MH |
7578 | } |
7579 | if (p->u.conc.v_nport == 0) { | |
7580 | dgap_err("number of ports on concentrator not specified"); | |
cf42c34d | 7581 | return 1; |
69edaa21 MH |
7582 | } |
7583 | if (p->u.conc.v_id == 0) { | |
7584 | dgap_err("concentrator id letter not specified"); | |
cf42c34d | 7585 | return 1; |
69edaa21 | 7586 | } |
cf42c34d | 7587 | return 0; |
69edaa21 MH |
7588 | |
7589 | case MNODE: | |
7590 | if (p->u.module.v_type == 0) { | |
7591 | dgap_err("EBI module type not specified"); | |
cf42c34d | 7592 | return 1; |
69edaa21 MH |
7593 | } |
7594 | if (p->u.module.v_nport == 0) { | |
7595 | dgap_err("number of ports on EBI module not specified"); | |
cf42c34d | 7596 | return 1; |
69edaa21 MH |
7597 | } |
7598 | if (p->u.module.v_id == 0) { | |
7599 | dgap_err("EBI module id letter not specified"); | |
cf42c34d | 7600 | return 1; |
69edaa21 | 7601 | } |
cf42c34d | 7602 | return 0; |
69edaa21 | 7603 | } |
cf42c34d | 7604 | return 0; |
69edaa21 MH |
7605 | } |
7606 | ||
7607 | /* | |
7608 | * save a string somewhere | |
7609 | */ | |
7610 | static char *dgap_savestring(char *s) | |
7611 | { | |
7612 | char *p; | |
305ec874 MH |
7613 | |
7614 | p = kmalloc(strlen(s) + 1, GFP_ATOMIC); | |
7615 | if (p) | |
69edaa21 | 7616 | strcpy(p, s); |
cf42c34d | 7617 | return p; |
69edaa21 MH |
7618 | } |
7619 | ||
69edaa21 MH |
7620 | /* |
7621 | * Given a board pointer, returns whether we should use interrupts or not. | |
7622 | */ | |
fe0ef8e6 | 7623 | static uint dgap_config_get_useintr(struct board_t *bd) |
69edaa21 MH |
7624 | { |
7625 | struct cnode *p = NULL; | |
7626 | ||
7627 | if (!bd) | |
cf42c34d | 7628 | return 0; |
69edaa21 MH |
7629 | |
7630 | for (p = bd->bd_config; p; p = p->next) { | |
7631 | switch (p->type) { | |
7632 | case INTRNODE: | |
7633 | /* | |
7634 | * check for pcxr types. | |
7635 | */ | |
7636 | return p->u.useintr; | |
7637 | default: | |
7638 | break; | |
7639 | } | |
7640 | } | |
7641 | ||
7642 | /* If not found, then don't turn on interrupts. */ | |
7643 | return 0; | |
7644 | } | |
7645 | ||
69edaa21 MH |
7646 | /* |
7647 | * Given a board pointer, returns whether we turn on altpin or not. | |
7648 | */ | |
fe0ef8e6 | 7649 | static uint dgap_config_get_altpin(struct board_t *bd) |
69edaa21 MH |
7650 | { |
7651 | struct cnode *p = NULL; | |
7652 | ||
7653 | if (!bd) | |
cf42c34d | 7654 | return 0; |
69edaa21 MH |
7655 | |
7656 | for (p = bd->bd_config; p; p = p->next) { | |
7657 | switch (p->type) { | |
7658 | case ANODE: | |
7659 | /* | |
7660 | * check for pcxr types. | |
7661 | */ | |
7662 | return p->u.altpin; | |
7663 | default: | |
7664 | break; | |
7665 | } | |
7666 | } | |
7667 | ||
7668 | /* If not found, then don't turn on interrupts. */ | |
7669 | return 0; | |
7670 | } | |
7671 | ||
69edaa21 MH |
7672 | /* |
7673 | * Given a specific type of board, if found, detached link and | |
7674 | * returns the first occurrence in the list. | |
7675 | */ | |
fe0ef8e6 | 7676 | static struct cnode *dgap_find_config(int type, int bus, int slot) |
69edaa21 MH |
7677 | { |
7678 | struct cnode *p, *prev = NULL, *prev2 = NULL, *found = NULL; | |
7679 | ||
7680 | p = &dgap_head; | |
7681 | ||
7682 | while (p->next != NULL) { | |
7683 | prev = p; | |
7684 | p = p->next; | |
7685 | ||
7686 | if (p->type == BNODE) { | |
7687 | ||
7688 | if (p->u.board.type == type) { | |
7689 | ||
305ec874 MH |
7690 | if (p->u.board.v_pcibus && |
7691 | p->u.board.pcibus != bus) | |
69edaa21 | 7692 | continue; |
305ec874 MH |
7693 | if (p->u.board.v_pcislot && |
7694 | p->u.board.pcislot != slot) | |
69edaa21 | 7695 | continue; |
69edaa21 | 7696 | |
69edaa21 MH |
7697 | found = p; |
7698 | /* | |
7699 | * Keep walking thru the list till we find the next board. | |
7700 | */ | |
7701 | while (p->next != NULL) { | |
7702 | prev2 = p; | |
7703 | p = p->next; | |
7704 | if (p->type == BNODE) { | |
7705 | ||
7706 | /* | |
7707 | * Mark the end of our 1 board chain of configs. | |
7708 | */ | |
7709 | prev2->next = NULL; | |
7710 | ||
7711 | /* | |
7712 | * Link the "next" board to the previous board, | |
7713 | * effectively "unlinking" our board from the main config. | |
7714 | */ | |
7715 | prev->next = p; | |
7716 | ||
7717 | return found; | |
7718 | } | |
7719 | } | |
7720 | /* | |
7721 | * It must be the last board in the list. | |
7722 | */ | |
7723 | prev->next = NULL; | |
7724 | return found; | |
7725 | } | |
7726 | } | |
7727 | } | |
7728 | return NULL; | |
7729 | } | |
7730 | ||
7731 | /* | |
7732 | * Given a board pointer, walks the config link, counting up | |
7733 | * all ports user specified should be on the board. | |
7734 | * (This does NOT mean they are all actually present right now tho) | |
7735 | */ | |
fe0ef8e6 | 7736 | static uint dgap_config_get_number_of_ports(struct board_t *bd) |
69edaa21 MH |
7737 | { |
7738 | int count = 0; | |
7739 | struct cnode *p = NULL; | |
7740 | ||
7741 | if (!bd) | |
cf42c34d | 7742 | return 0; |
69edaa21 MH |
7743 | |
7744 | for (p = bd->bd_config; p; p = p->next) { | |
7745 | ||
7746 | switch (p->type) { | |
7747 | case BNODE: | |
7748 | /* | |
7749 | * check for pcxr types. | |
7750 | */ | |
7751 | if (p->u.board.type > EPCFE) | |
7752 | count += p->u.board.nport; | |
7753 | break; | |
7754 | case CNODE: | |
7755 | count += p->u.conc.nport; | |
7756 | break; | |
7757 | case MNODE: | |
7758 | count += p->u.module.nport; | |
7759 | break; | |
7760 | } | |
7761 | } | |
cf42c34d | 7762 | return count; |
69edaa21 MH |
7763 | } |
7764 | ||
fe0ef8e6 | 7765 | static char *dgap_create_config_string(struct board_t *bd, char *string) |
69edaa21 MH |
7766 | { |
7767 | char *ptr = string; | |
7768 | struct cnode *p = NULL; | |
7769 | struct cnode *q = NULL; | |
7770 | int speed; | |
7771 | ||
7772 | if (!bd) { | |
7773 | *ptr = 0xff; | |
7774 | return string; | |
7775 | } | |
7776 | ||
7777 | for (p = bd->bd_config; p; p = p->next) { | |
7778 | ||
7779 | switch (p->type) { | |
7780 | case LNODE: | |
7781 | *ptr = '\0'; | |
7782 | ptr++; | |
7783 | *ptr = p->u.line.speed; | |
7784 | ptr++; | |
7785 | break; | |
7786 | case CNODE: | |
7787 | /* | |
7788 | * Because the EPC/con concentrators can have EM modules | |
7789 | * hanging off of them, we have to walk ahead in the list | |
7790 | * and keep adding the number of ports on each EM to the config. | |
7791 | * UGH! | |
7792 | */ | |
7793 | speed = p->u.conc.speed; | |
7794 | q = p->next; | |
b115b024 | 7795 | if ((q != NULL) && (q->type == MNODE)) { |
69edaa21 MH |
7796 | *ptr = (p->u.conc.nport + 0x80); |
7797 | ptr++; | |
7798 | p = q; | |
7799 | while ((q->next != NULL) && (q->next->type) == MNODE) { | |
7800 | *ptr = (q->u.module.nport + 0x80); | |
7801 | ptr++; | |
7802 | p = q; | |
7803 | q = q->next; | |
7804 | } | |
7805 | *ptr = q->u.module.nport; | |
7806 | ptr++; | |
7807 | } else { | |
7808 | *ptr = p->u.conc.nport; | |
7809 | ptr++; | |
7810 | } | |
7811 | ||
7812 | *ptr = speed; | |
7813 | ptr++; | |
7814 | break; | |
7815 | } | |
7816 | } | |
7817 | ||
7818 | *ptr = 0xff; | |
7819 | return string; | |
7820 | } |