Commit | Line | Data |
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1da177e4 LT |
1 | /* vi: ts=8 sw=8 |
2 | * | |
3 | * TI 3410/5052 USB Serial Driver | |
4 | * | |
5 | * Copyright (C) 2004 Texas Instruments | |
6 | * | |
7 | * This driver is based on the Linux io_ti driver, which is | |
8 | * Copyright (C) 2000-2002 Inside Out Networks | |
9 | * Copyright (C) 2001-2002 Greg Kroah-Hartman | |
10 | * | |
11 | * This program is free software; you can redistribute it and/or modify | |
12 | * it under the terms of the GNU General Public License as published by | |
13 | * the Free Software Foundation; either version 2 of the License, or | |
14 | * (at your option) any later version. | |
15 | * | |
16 | * For questions or problems with this driver, contact Texas Instruments | |
17 | * technical support, or Al Borchers <alborchers@steinerpoint.com>, or | |
18 | * Peter Berger <pberger@brimson.com>. | |
1da177e4 LT |
19 | */ |
20 | ||
1da177e4 LT |
21 | #include <linux/kernel.h> |
22 | #include <linux/errno.h> | |
95da310e | 23 | #include <linux/firmware.h> |
1da177e4 LT |
24 | #include <linux/init.h> |
25 | #include <linux/slab.h> | |
26 | #include <linux/tty.h> | |
27 | #include <linux/tty_driver.h> | |
28 | #include <linux/tty_flip.h> | |
29 | #include <linux/module.h> | |
30 | #include <linux/spinlock.h> | |
31 | #include <linux/ioctl.h> | |
32 | #include <linux/serial.h> | |
074ef65a | 33 | #include <linux/kfifo.h> |
9da0068a | 34 | #include <linux/mutex.h> |
a30fa793 | 35 | #include <linux/uaccess.h> |
1da177e4 | 36 | #include <linux/usb.h> |
a969888c | 37 | #include <linux/usb/serial.h> |
1da177e4 | 38 | |
1da177e4 | 39 | #include "ti_usb_3410_5052.h" |
1da177e4 LT |
40 | |
41 | /* Defines */ | |
42 | ||
074ef65a | 43 | #define TI_DRIVER_VERSION "v0.10" |
1da177e4 LT |
44 | #define TI_DRIVER_AUTHOR "Al Borchers <alborchers@steinerpoint.com>" |
45 | #define TI_DRIVER_DESC "TI USB 3410/5052 Serial Driver" | |
46 | ||
47 | #define TI_FIRMWARE_BUF_SIZE 16284 | |
48 | ||
49 | #define TI_WRITE_BUF_SIZE 1024 | |
50 | ||
51 | #define TI_TRANSFER_TIMEOUT 2 | |
52 | ||
1da177e4 LT |
53 | #define TI_DEFAULT_CLOSING_WAIT 4000 /* in .01 secs */ |
54 | ||
55 | /* supported setserial flags */ | |
2400a2bf | 56 | #define TI_SET_SERIAL_FLAGS 0 |
1da177e4 LT |
57 | |
58 | /* read urb states */ | |
59 | #define TI_READ_URB_RUNNING 0 | |
60 | #define TI_READ_URB_STOPPING 1 | |
61 | #define TI_READ_URB_STOPPED 2 | |
62 | ||
63 | #define TI_EXTRA_VID_PID_COUNT 5 | |
64 | ||
65 | ||
66 | /* Structures */ | |
67 | ||
68 | struct ti_port { | |
69 | int tp_is_open; | |
70 | __u8 tp_msr; | |
71 | __u8 tp_lsr; | |
72 | __u8 tp_shadow_mcr; | |
73 | __u8 tp_uart_mode; /* 232 or 485 modes */ | |
74 | unsigned int tp_uart_base_addr; | |
75 | int tp_flags; | |
76 | int tp_closing_wait;/* in .01 secs */ | |
77 | struct async_icount tp_icount; | |
78 | wait_queue_head_t tp_msr_wait; /* wait for msr change */ | |
79 | wait_queue_head_t tp_write_wait; | |
80 | struct ti_device *tp_tdev; | |
81 | struct usb_serial_port *tp_port; | |
82 | spinlock_t tp_lock; | |
83 | int tp_read_urb_state; | |
84 | int tp_write_urb_in_use; | |
074ef65a | 85 | struct kfifo write_fifo; |
1da177e4 LT |
86 | }; |
87 | ||
88 | struct ti_device { | |
9da0068a | 89 | struct mutex td_open_close_lock; |
1da177e4 LT |
90 | int td_open_port_count; |
91 | struct usb_serial *td_serial; | |
92 | int td_is_3410; | |
93 | int td_urb_error; | |
94 | }; | |
95 | ||
96 | ||
97 | /* Function Declarations */ | |
98 | ||
99 | static int ti_startup(struct usb_serial *serial); | |
f9c99bb8 | 100 | static void ti_release(struct usb_serial *serial); |
a509a7e4 | 101 | static int ti_open(struct tty_struct *tty, struct usb_serial_port *port); |
335f8514 | 102 | static void ti_close(struct usb_serial_port *port); |
95da310e | 103 | static int ti_write(struct tty_struct *tty, struct usb_serial_port *port, |
a30fa793 | 104 | const unsigned char *data, int count); |
95da310e AC |
105 | static int ti_write_room(struct tty_struct *tty); |
106 | static int ti_chars_in_buffer(struct tty_struct *tty); | |
107 | static void ti_throttle(struct tty_struct *tty); | |
108 | static void ti_unthrottle(struct tty_struct *tty); | |
00a0d0d6 | 109 | static int ti_ioctl(struct tty_struct *tty, |
a30fa793 | 110 | unsigned int cmd, unsigned long arg); |
0bca1b91 AC |
111 | static int ti_get_icount(struct tty_struct *tty, |
112 | struct serial_icounter_struct *icount); | |
a30fa793 AC |
113 | static void ti_set_termios(struct tty_struct *tty, |
114 | struct usb_serial_port *port, struct ktermios *old_termios); | |
60b33c13 | 115 | static int ti_tiocmget(struct tty_struct *tty); |
20b9d177 | 116 | static int ti_tiocmset(struct tty_struct *tty, |
a30fa793 | 117 | unsigned int set, unsigned int clear); |
95da310e | 118 | static void ti_break(struct tty_struct *tty, int break_state); |
7d12e780 DH |
119 | static void ti_interrupt_callback(struct urb *urb); |
120 | static void ti_bulk_in_callback(struct urb *urb); | |
121 | static void ti_bulk_out_callback(struct urb *urb); | |
1da177e4 LT |
122 | |
123 | static void ti_recv(struct device *dev, struct tty_struct *tty, | |
124 | unsigned char *data, int length); | |
125 | static void ti_send(struct ti_port *tport); | |
126 | static int ti_set_mcr(struct ti_port *tport, unsigned int mcr); | |
127 | static int ti_get_lsr(struct ti_port *tport); | |
128 | static int ti_get_serial_info(struct ti_port *tport, | |
129 | struct serial_struct __user *ret_arg); | |
4a90f09b | 130 | static int ti_set_serial_info(struct tty_struct *tty, struct ti_port *tport, |
1da177e4 LT |
131 | struct serial_struct __user *new_arg); |
132 | static void ti_handle_new_msr(struct ti_port *tport, __u8 msr); | |
133 | ||
134 | static void ti_drain(struct ti_port *tport, unsigned long timeout, int flush); | |
135 | ||
136 | static void ti_stop_read(struct ti_port *tport, struct tty_struct *tty); | |
137 | static int ti_restart_read(struct ti_port *tport, struct tty_struct *tty); | |
138 | ||
139 | static int ti_command_out_sync(struct ti_device *tdev, __u8 command, | |
140 | __u16 moduleid, __u16 value, __u8 *data, int size); | |
141 | static int ti_command_in_sync(struct ti_device *tdev, __u8 command, | |
142 | __u16 moduleid, __u16 value, __u8 *data, int size); | |
143 | ||
144 | static int ti_write_byte(struct ti_device *tdev, unsigned long addr, | |
145 | __u8 mask, __u8 byte); | |
146 | ||
05a3d905 | 147 | static int ti_download_firmware(struct ti_device *tdev); |
1da177e4 | 148 | |
1da177e4 LT |
149 | |
150 | /* Data */ | |
151 | ||
152 | /* module parameters */ | |
90ab5ee9 | 153 | static bool debug; |
1da177e4 LT |
154 | static int closing_wait = TI_DEFAULT_CLOSING_WAIT; |
155 | static ushort vendor_3410[TI_EXTRA_VID_PID_COUNT]; | |
64a6f950 | 156 | static unsigned int vendor_3410_count; |
1da177e4 | 157 | static ushort product_3410[TI_EXTRA_VID_PID_COUNT]; |
64a6f950 | 158 | static unsigned int product_3410_count; |
1da177e4 | 159 | static ushort vendor_5052[TI_EXTRA_VID_PID_COUNT]; |
64a6f950 | 160 | static unsigned int vendor_5052_count; |
1da177e4 | 161 | static ushort product_5052[TI_EXTRA_VID_PID_COUNT]; |
64a6f950 | 162 | static unsigned int product_5052_count; |
1da177e4 LT |
163 | |
164 | /* supported devices */ | |
165 | /* the array dimension is the number of default entries plus */ | |
166 | /* TI_EXTRA_VID_PID_COUNT user defined entries plus 1 terminating */ | |
167 | /* null entry */ | |
975dc33b | 168 | static struct usb_device_id ti_id_table_3410[15+TI_EXTRA_VID_PID_COUNT+1] = { |
1da177e4 | 169 | { USB_DEVICE(TI_VENDOR_ID, TI_3410_PRODUCT_ID) }, |
1f54a6ae | 170 | { USB_DEVICE(TI_VENDOR_ID, TI_3410_EZ430_ID) }, |
cb7a7c6a CA |
171 | { USB_DEVICE(MTS_VENDOR_ID, MTS_GSM_NO_FW_PRODUCT_ID) }, |
172 | { USB_DEVICE(MTS_VENDOR_ID, MTS_CDMA_NO_FW_PRODUCT_ID) }, | |
173 | { USB_DEVICE(MTS_VENDOR_ID, MTS_CDMA_PRODUCT_ID) }, | |
174 | { USB_DEVICE(MTS_VENDOR_ID, MTS_GSM_PRODUCT_ID) }, | |
175 | { USB_DEVICE(MTS_VENDOR_ID, MTS_EDGE_PRODUCT_ID) }, | |
cdc04834 AM |
176 | { USB_DEVICE(MTS_VENDOR_ID, MTS_MT9234MU_PRODUCT_ID) }, |
177 | { USB_DEVICE(MTS_VENDOR_ID, MTS_MT9234ZBA_PRODUCT_ID) }, | |
178 | { USB_DEVICE(MTS_VENDOR_ID, MTS_MT9234ZBAOLD_PRODUCT_ID) }, | |
1a1fab51 | 179 | { USB_DEVICE(IBM_VENDOR_ID, IBM_4543_PRODUCT_ID) }, |
97dcf041 ON |
180 | { USB_DEVICE(IBM_VENDOR_ID, IBM_454B_PRODUCT_ID) }, |
181 | { USB_DEVICE(IBM_VENDOR_ID, IBM_454C_PRODUCT_ID) }, | |
7fd25702 | 182 | { USB_DEVICE(ABBOTT_VENDOR_ID, ABBOTT_PRODUCT_ID) }, |
975dc33b | 183 | { USB_DEVICE(TI_VENDOR_ID, FRI2_PRODUCT_ID) }, |
1da177e4 LT |
184 | }; |
185 | ||
97dcf041 | 186 | static struct usb_device_id ti_id_table_5052[5+TI_EXTRA_VID_PID_COUNT+1] = { |
1da177e4 LT |
187 | { USB_DEVICE(TI_VENDOR_ID, TI_5052_BOOT_PRODUCT_ID) }, |
188 | { USB_DEVICE(TI_VENDOR_ID, TI_5152_BOOT_PRODUCT_ID) }, | |
189 | { USB_DEVICE(TI_VENDOR_ID, TI_5052_EEPROM_PRODUCT_ID) }, | |
190 | { USB_DEVICE(TI_VENDOR_ID, TI_5052_FIRMWARE_PRODUCT_ID) }, | |
191 | }; | |
192 | ||
975dc33b | 193 | static struct usb_device_id ti_id_table_combined[19+2*TI_EXTRA_VID_PID_COUNT+1] = { |
1da177e4 | 194 | { USB_DEVICE(TI_VENDOR_ID, TI_3410_PRODUCT_ID) }, |
1f54a6ae | 195 | { USB_DEVICE(TI_VENDOR_ID, TI_3410_EZ430_ID) }, |
cb7a7c6a CA |
196 | { USB_DEVICE(MTS_VENDOR_ID, MTS_GSM_NO_FW_PRODUCT_ID) }, |
197 | { USB_DEVICE(MTS_VENDOR_ID, MTS_CDMA_NO_FW_PRODUCT_ID) }, | |
198 | { USB_DEVICE(MTS_VENDOR_ID, MTS_CDMA_PRODUCT_ID) }, | |
199 | { USB_DEVICE(MTS_VENDOR_ID, MTS_GSM_PRODUCT_ID) }, | |
200 | { USB_DEVICE(MTS_VENDOR_ID, MTS_EDGE_PRODUCT_ID) }, | |
cdc04834 AM |
201 | { USB_DEVICE(MTS_VENDOR_ID, MTS_MT9234MU_PRODUCT_ID) }, |
202 | { USB_DEVICE(MTS_VENDOR_ID, MTS_MT9234ZBA_PRODUCT_ID) }, | |
203 | { USB_DEVICE(MTS_VENDOR_ID, MTS_MT9234ZBAOLD_PRODUCT_ID) }, | |
1da177e4 LT |
204 | { USB_DEVICE(TI_VENDOR_ID, TI_5052_BOOT_PRODUCT_ID) }, |
205 | { USB_DEVICE(TI_VENDOR_ID, TI_5152_BOOT_PRODUCT_ID) }, | |
206 | { USB_DEVICE(TI_VENDOR_ID, TI_5052_EEPROM_PRODUCT_ID) }, | |
207 | { USB_DEVICE(TI_VENDOR_ID, TI_5052_FIRMWARE_PRODUCT_ID) }, | |
1a1fab51 | 208 | { USB_DEVICE(IBM_VENDOR_ID, IBM_4543_PRODUCT_ID) }, |
97dcf041 ON |
209 | { USB_DEVICE(IBM_VENDOR_ID, IBM_454B_PRODUCT_ID) }, |
210 | { USB_DEVICE(IBM_VENDOR_ID, IBM_454C_PRODUCT_ID) }, | |
7fd25702 | 211 | { USB_DEVICE(ABBOTT_VENDOR_ID, ABBOTT_PRODUCT_ID) }, |
975dc33b | 212 | { USB_DEVICE(TI_VENDOR_ID, FRI2_PRODUCT_ID) }, |
1da177e4 LT |
213 | { } |
214 | }; | |
215 | ||
ea65370d | 216 | static struct usb_serial_driver ti_1port_device = { |
18fcac35 | 217 | .driver = { |
269bda1c GKH |
218 | .owner = THIS_MODULE, |
219 | .name = "ti_usb_3410_5052_1", | |
18fcac35 | 220 | }, |
269bda1c | 221 | .description = "TI USB 3410 1 port adapter", |
1da177e4 | 222 | .id_table = ti_id_table_3410, |
1da177e4 LT |
223 | .num_ports = 1, |
224 | .attach = ti_startup, | |
f9c99bb8 | 225 | .release = ti_release, |
1da177e4 LT |
226 | .open = ti_open, |
227 | .close = ti_close, | |
228 | .write = ti_write, | |
229 | .write_room = ti_write_room, | |
230 | .chars_in_buffer = ti_chars_in_buffer, | |
231 | .throttle = ti_throttle, | |
232 | .unthrottle = ti_unthrottle, | |
233 | .ioctl = ti_ioctl, | |
234 | .set_termios = ti_set_termios, | |
235 | .tiocmget = ti_tiocmget, | |
236 | .tiocmset = ti_tiocmset, | |
0bca1b91 | 237 | .get_icount = ti_get_icount, |
1da177e4 LT |
238 | .break_ctl = ti_break, |
239 | .read_int_callback = ti_interrupt_callback, | |
240 | .read_bulk_callback = ti_bulk_in_callback, | |
241 | .write_bulk_callback = ti_bulk_out_callback, | |
242 | }; | |
243 | ||
ea65370d | 244 | static struct usb_serial_driver ti_2port_device = { |
18fcac35 | 245 | .driver = { |
269bda1c GKH |
246 | .owner = THIS_MODULE, |
247 | .name = "ti_usb_3410_5052_2", | |
18fcac35 | 248 | }, |
269bda1c | 249 | .description = "TI USB 5052 2 port adapter", |
1da177e4 | 250 | .id_table = ti_id_table_5052, |
1da177e4 LT |
251 | .num_ports = 2, |
252 | .attach = ti_startup, | |
f9c99bb8 | 253 | .release = ti_release, |
1da177e4 LT |
254 | .open = ti_open, |
255 | .close = ti_close, | |
256 | .write = ti_write, | |
257 | .write_room = ti_write_room, | |
258 | .chars_in_buffer = ti_chars_in_buffer, | |
259 | .throttle = ti_throttle, | |
260 | .unthrottle = ti_unthrottle, | |
261 | .ioctl = ti_ioctl, | |
262 | .set_termios = ti_set_termios, | |
263 | .tiocmget = ti_tiocmget, | |
264 | .tiocmset = ti_tiocmset, | |
0bca1b91 | 265 | .get_icount = ti_get_icount, |
1da177e4 LT |
266 | .break_ctl = ti_break, |
267 | .read_int_callback = ti_interrupt_callback, | |
268 | .read_bulk_callback = ti_bulk_in_callback, | |
269 | .write_bulk_callback = ti_bulk_out_callback, | |
270 | }; | |
271 | ||
29618e9f AS |
272 | static struct usb_serial_driver * const serial_drivers[] = { |
273 | &ti_1port_device, &ti_2port_device, NULL | |
274 | }; | |
1da177e4 LT |
275 | |
276 | /* Module */ | |
277 | ||
278 | MODULE_AUTHOR(TI_DRIVER_AUTHOR); | |
279 | MODULE_DESCRIPTION(TI_DRIVER_DESC); | |
280 | MODULE_VERSION(TI_DRIVER_VERSION); | |
281 | MODULE_LICENSE("GPL"); | |
282 | ||
5f24e2d6 DW |
283 | MODULE_FIRMWARE("ti_3410.fw"); |
284 | MODULE_FIRMWARE("ti_5052.fw"); | |
7df52316 CA |
285 | MODULE_FIRMWARE("mts_cdma.fw"); |
286 | MODULE_FIRMWARE("mts_gsm.fw"); | |
287 | MODULE_FIRMWARE("mts_edge.fw"); | |
cdc04834 AM |
288 | MODULE_FIRMWARE("mts_mt9234mu.fw"); |
289 | MODULE_FIRMWARE("mts_mt9234zba.fw"); | |
5f24e2d6 | 290 | |
1da177e4 LT |
291 | module_param(debug, bool, S_IRUGO | S_IWUSR); |
292 | MODULE_PARM_DESC(debug, "Enable debugging, 0=no, 1=yes"); | |
293 | ||
1da177e4 | 294 | module_param(closing_wait, int, S_IRUGO | S_IWUSR); |
a30fa793 AC |
295 | MODULE_PARM_DESC(closing_wait, |
296 | "Maximum wait for data to drain in close, in .01 secs, default is 4000"); | |
1da177e4 LT |
297 | |
298 | module_param_array(vendor_3410, ushort, &vendor_3410_count, S_IRUGO); | |
a30fa793 AC |
299 | MODULE_PARM_DESC(vendor_3410, |
300 | "Vendor ids for 3410 based devices, 1-5 short integers"); | |
1da177e4 | 301 | module_param_array(product_3410, ushort, &product_3410_count, S_IRUGO); |
a30fa793 AC |
302 | MODULE_PARM_DESC(product_3410, |
303 | "Product ids for 3410 based devices, 1-5 short integers"); | |
1da177e4 | 304 | module_param_array(vendor_5052, ushort, &vendor_5052_count, S_IRUGO); |
a30fa793 AC |
305 | MODULE_PARM_DESC(vendor_5052, |
306 | "Vendor ids for 5052 based devices, 1-5 short integers"); | |
1da177e4 | 307 | module_param_array(product_5052, ushort, &product_5052_count, S_IRUGO); |
a30fa793 AC |
308 | MODULE_PARM_DESC(product_5052, |
309 | "Product ids for 5052 based devices, 1-5 short integers"); | |
1da177e4 LT |
310 | |
311 | MODULE_DEVICE_TABLE(usb, ti_id_table_combined); | |
312 | ||
313 | ||
314 | /* Functions */ | |
315 | ||
316 | static int __init ti_init(void) | |
317 | { | |
05a3d905 | 318 | int i, j, c; |
1da177e4 LT |
319 | int ret; |
320 | ||
1da177e4 | 321 | /* insert extra vendor and product ids */ |
05a3d905 | 322 | c = ARRAY_SIZE(ti_id_table_combined) - 2 * TI_EXTRA_VID_PID_COUNT - 1; |
52950ed4 | 323 | j = ARRAY_SIZE(ti_id_table_3410) - TI_EXTRA_VID_PID_COUNT - 1; |
05a3d905 | 324 | for (i = 0; i < min(vendor_3410_count, product_3410_count); i++, j++, c++) { |
1da177e4 LT |
325 | ti_id_table_3410[j].idVendor = vendor_3410[i]; |
326 | ti_id_table_3410[j].idProduct = product_3410[i]; | |
327 | ti_id_table_3410[j].match_flags = USB_DEVICE_ID_MATCH_DEVICE; | |
05a3d905 CA |
328 | ti_id_table_combined[c].idVendor = vendor_3410[i]; |
329 | ti_id_table_combined[c].idProduct = product_3410[i]; | |
330 | ti_id_table_combined[c].match_flags = USB_DEVICE_ID_MATCH_DEVICE; | |
1da177e4 | 331 | } |
52950ed4 | 332 | j = ARRAY_SIZE(ti_id_table_5052) - TI_EXTRA_VID_PID_COUNT - 1; |
05a3d905 | 333 | for (i = 0; i < min(vendor_5052_count, product_5052_count); i++, j++, c++) { |
1da177e4 LT |
334 | ti_id_table_5052[j].idVendor = vendor_5052[i]; |
335 | ti_id_table_5052[j].idProduct = product_5052[i]; | |
336 | ti_id_table_5052[j].match_flags = USB_DEVICE_ID_MATCH_DEVICE; | |
05a3d905 CA |
337 | ti_id_table_combined[c].idVendor = vendor_5052[i]; |
338 | ti_id_table_combined[c].idProduct = product_5052[i]; | |
339 | ti_id_table_combined[c].match_flags = USB_DEVICE_ID_MATCH_DEVICE; | |
1da177e4 LT |
340 | } |
341 | ||
68e24113 | 342 | ret = usb_serial_register_drivers(serial_drivers, KBUILD_MODNAME, ti_id_table_combined); |
29618e9f AS |
343 | if (ret == 0) |
344 | printk(KERN_INFO KBUILD_MODNAME ": " TI_DRIVER_VERSION ":" | |
345 | TI_DRIVER_DESC "\n"); | |
1da177e4 LT |
346 | return ret; |
347 | } | |
348 | ||
1da177e4 LT |
349 | static void __exit ti_exit(void) |
350 | { | |
68e24113 | 351 | usb_serial_deregister_drivers(serial_drivers); |
1da177e4 LT |
352 | } |
353 | ||
1da177e4 LT |
354 | module_init(ti_init); |
355 | module_exit(ti_exit); | |
356 | ||
357 | ||
358 | static int ti_startup(struct usb_serial *serial) | |
359 | { | |
360 | struct ti_device *tdev; | |
361 | struct ti_port *tport; | |
362 | struct usb_device *dev = serial->dev; | |
363 | int status; | |
364 | int i; | |
365 | ||
366 | ||
367 | dbg("%s - product 0x%4X, num configurations %d, configuration value %d", | |
441b62c1 | 368 | __func__, le16_to_cpu(dev->descriptor.idProduct), |
1da177e4 LT |
369 | dev->descriptor.bNumConfigurations, |
370 | dev->actconfig->desc.bConfigurationValue); | |
371 | ||
372 | /* create device structure */ | |
80b6ca48 | 373 | tdev = kzalloc(sizeof(struct ti_device), GFP_KERNEL); |
1da177e4 | 374 | if (tdev == NULL) { |
441b62c1 | 375 | dev_err(&dev->dev, "%s - out of memory\n", __func__); |
1da177e4 LT |
376 | return -ENOMEM; |
377 | } | |
9da0068a | 378 | mutex_init(&tdev->td_open_close_lock); |
1da177e4 LT |
379 | tdev->td_serial = serial; |
380 | usb_set_serial_data(serial, tdev); | |
381 | ||
382 | /* determine device type */ | |
383 | if (usb_match_id(serial->interface, ti_id_table_3410)) | |
384 | tdev->td_is_3410 = 1; | |
a30fa793 AC |
385 | dbg("%s - device type is %s", __func__, |
386 | tdev->td_is_3410 ? "3410" : "5052"); | |
1da177e4 LT |
387 | |
388 | /* if we have only 1 configuration, download firmware */ | |
389 | if (dev->descriptor.bNumConfigurations == 1) { | |
72b27a07 AR |
390 | status = ti_download_firmware(tdev); |
391 | ||
392 | if (status != 0) | |
1da177e4 LT |
393 | goto free_tdev; |
394 | ||
395 | /* 3410 must be reset, 5052 resets itself */ | |
396 | if (tdev->td_is_3410) { | |
397 | msleep_interruptible(100); | |
398 | usb_reset_device(dev); | |
399 | } | |
400 | ||
401 | status = -ENODEV; | |
402 | goto free_tdev; | |
a30fa793 | 403 | } |
1da177e4 | 404 | |
413ba6fb | 405 | /* the second configuration must be set */ |
1da177e4 | 406 | if (dev->actconfig->desc.bConfigurationValue == TI_BOOT_CONFIG) { |
413ba6fb ON |
407 | status = usb_driver_set_configuration(dev, TI_ACTIVE_CONFIG); |
408 | status = status ? status : -ENODEV; | |
1da177e4 LT |
409 | goto free_tdev; |
410 | } | |
411 | ||
412 | /* set up port structures */ | |
413 | for (i = 0; i < serial->num_ports; ++i) { | |
7ac9da10 | 414 | tport = kzalloc(sizeof(struct ti_port), GFP_KERNEL); |
1da177e4 | 415 | if (tport == NULL) { |
441b62c1 | 416 | dev_err(&dev->dev, "%s - out of memory\n", __func__); |
1da177e4 LT |
417 | status = -ENOMEM; |
418 | goto free_tports; | |
419 | } | |
1da177e4 | 420 | spin_lock_init(&tport->tp_lock); |
a30fa793 AC |
421 | tport->tp_uart_base_addr = (i == 0 ? |
422 | TI_UART1_BASE_ADDR : TI_UART2_BASE_ADDR); | |
1da177e4 LT |
423 | tport->tp_closing_wait = closing_wait; |
424 | init_waitqueue_head(&tport->tp_msr_wait); | |
425 | init_waitqueue_head(&tport->tp_write_wait); | |
074ef65a JH |
426 | if (kfifo_alloc(&tport->write_fifo, TI_WRITE_BUF_SIZE, |
427 | GFP_KERNEL)) { | |
441b62c1 | 428 | dev_err(&dev->dev, "%s - out of memory\n", __func__); |
1da177e4 LT |
429 | kfree(tport); |
430 | status = -ENOMEM; | |
431 | goto free_tports; | |
432 | } | |
433 | tport->tp_port = serial->port[i]; | |
434 | tport->tp_tdev = tdev; | |
435 | usb_set_serial_port_data(serial->port[i], tport); | |
436 | tport->tp_uart_mode = 0; /* default is RS232 */ | |
437 | } | |
a30fa793 | 438 | |
1da177e4 LT |
439 | return 0; |
440 | ||
441 | free_tports: | |
a30fa793 | 442 | for (--i; i >= 0; --i) { |
1da177e4 | 443 | tport = usb_get_serial_port_data(serial->port[i]); |
074ef65a | 444 | kfifo_free(&tport->write_fifo); |
1da177e4 LT |
445 | kfree(tport); |
446 | usb_set_serial_port_data(serial->port[i], NULL); | |
447 | } | |
448 | free_tdev: | |
449 | kfree(tdev); | |
450 | usb_set_serial_data(serial, NULL); | |
451 | return status; | |
452 | } | |
453 | ||
454 | ||
f9c99bb8 | 455 | static void ti_release(struct usb_serial *serial) |
1da177e4 LT |
456 | { |
457 | int i; | |
458 | struct ti_device *tdev = usb_get_serial_data(serial); | |
459 | struct ti_port *tport; | |
460 | ||
a30fa793 | 461 | for (i = 0; i < serial->num_ports; ++i) { |
1da177e4 LT |
462 | tport = usb_get_serial_port_data(serial->port[i]); |
463 | if (tport) { | |
074ef65a | 464 | kfifo_free(&tport->write_fifo); |
1da177e4 | 465 | kfree(tport); |
1da177e4 LT |
466 | } |
467 | } | |
468 | ||
1bc3c9e1 | 469 | kfree(tdev); |
1da177e4 LT |
470 | } |
471 | ||
472 | ||
a509a7e4 | 473 | static int ti_open(struct tty_struct *tty, struct usb_serial_port *port) |
1da177e4 LT |
474 | { |
475 | struct ti_port *tport = usb_get_serial_port_data(port); | |
476 | struct ti_device *tdev; | |
477 | struct usb_device *dev; | |
478 | struct urb *urb; | |
479 | int port_number; | |
480 | int status; | |
a30fa793 AC |
481 | __u16 open_settings = (__u8)(TI_PIPE_MODE_CONTINOUS | |
482 | TI_PIPE_TIMEOUT_ENABLE | | |
1da177e4 LT |
483 | (TI_TRANSFER_TIMEOUT << 2)); |
484 | ||
1da177e4 LT |
485 | if (tport == NULL) |
486 | return -ENODEV; | |
487 | ||
488 | dev = port->serial->dev; | |
489 | tdev = tport->tp_tdev; | |
490 | ||
491 | /* only one open on any port on a device at a time */ | |
9da0068a | 492 | if (mutex_lock_interruptible(&tdev->td_open_close_lock)) |
1da177e4 LT |
493 | return -ERESTARTSYS; |
494 | ||
1da177e4 LT |
495 | port_number = port->number - port->serial->minor; |
496 | ||
497 | memset(&(tport->tp_icount), 0x00, sizeof(tport->tp_icount)); | |
498 | ||
499 | tport->tp_msr = 0; | |
500 | tport->tp_shadow_mcr |= (TI_MCR_RTS | TI_MCR_DTR); | |
501 | ||
502 | /* start interrupt urb the first time a port is opened on this device */ | |
503 | if (tdev->td_open_port_count == 0) { | |
441b62c1 | 504 | dbg("%s - start interrupt in urb", __func__); |
1da177e4 LT |
505 | urb = tdev->td_serial->port[0]->interrupt_in_urb; |
506 | if (!urb) { | |
a30fa793 AC |
507 | dev_err(&port->dev, "%s - no interrupt urb\n", |
508 | __func__); | |
1da177e4 | 509 | status = -EINVAL; |
9da0068a | 510 | goto release_lock; |
1da177e4 | 511 | } |
1da177e4 | 512 | urb->context = tdev; |
1da177e4 LT |
513 | status = usb_submit_urb(urb, GFP_KERNEL); |
514 | if (status) { | |
a30fa793 AC |
515 | dev_err(&port->dev, |
516 | "%s - submit interrupt urb failed, %d\n", | |
517 | __func__, status); | |
9da0068a | 518 | goto release_lock; |
1da177e4 LT |
519 | } |
520 | } | |
521 | ||
95da310e | 522 | if (tty) |
adc8d746 | 523 | ti_set_termios(tty, port, &tty->termios); |
1da177e4 | 524 | |
441b62c1 | 525 | dbg("%s - sending TI_OPEN_PORT", __func__); |
1da177e4 LT |
526 | status = ti_command_out_sync(tdev, TI_OPEN_PORT, |
527 | (__u8)(TI_UART1_PORT + port_number), open_settings, NULL, 0); | |
528 | if (status) { | |
a30fa793 AC |
529 | dev_err(&port->dev, "%s - cannot send open command, %d\n", |
530 | __func__, status); | |
1da177e4 LT |
531 | goto unlink_int_urb; |
532 | } | |
533 | ||
441b62c1 | 534 | dbg("%s - sending TI_START_PORT", __func__); |
1da177e4 LT |
535 | status = ti_command_out_sync(tdev, TI_START_PORT, |
536 | (__u8)(TI_UART1_PORT + port_number), 0, NULL, 0); | |
537 | if (status) { | |
a30fa793 AC |
538 | dev_err(&port->dev, "%s - cannot send start command, %d\n", |
539 | __func__, status); | |
1da177e4 LT |
540 | goto unlink_int_urb; |
541 | } | |
542 | ||
441b62c1 | 543 | dbg("%s - sending TI_PURGE_PORT", __func__); |
1da177e4 LT |
544 | status = ti_command_out_sync(tdev, TI_PURGE_PORT, |
545 | (__u8)(TI_UART1_PORT + port_number), TI_PURGE_INPUT, NULL, 0); | |
546 | if (status) { | |
a30fa793 AC |
547 | dev_err(&port->dev, "%s - cannot clear input buffers, %d\n", |
548 | __func__, status); | |
1da177e4 LT |
549 | goto unlink_int_urb; |
550 | } | |
551 | status = ti_command_out_sync(tdev, TI_PURGE_PORT, | |
552 | (__u8)(TI_UART1_PORT + port_number), TI_PURGE_OUTPUT, NULL, 0); | |
553 | if (status) { | |
a30fa793 AC |
554 | dev_err(&port->dev, "%s - cannot clear output buffers, %d\n", |
555 | __func__, status); | |
1da177e4 LT |
556 | goto unlink_int_urb; |
557 | } | |
558 | ||
559 | /* reset the data toggle on the bulk endpoints to work around bug in | |
560 | * host controllers where things get out of sync some times */ | |
561 | usb_clear_halt(dev, port->write_urb->pipe); | |
562 | usb_clear_halt(dev, port->read_urb->pipe); | |
563 | ||
95da310e | 564 | if (tty) |
adc8d746 | 565 | ti_set_termios(tty, port, &tty->termios); |
1da177e4 | 566 | |
441b62c1 | 567 | dbg("%s - sending TI_OPEN_PORT (2)", __func__); |
1da177e4 LT |
568 | status = ti_command_out_sync(tdev, TI_OPEN_PORT, |
569 | (__u8)(TI_UART1_PORT + port_number), open_settings, NULL, 0); | |
570 | if (status) { | |
a30fa793 AC |
571 | dev_err(&port->dev, "%s - cannot send open command (2), %d\n", |
572 | __func__, status); | |
1da177e4 LT |
573 | goto unlink_int_urb; |
574 | } | |
575 | ||
441b62c1 | 576 | dbg("%s - sending TI_START_PORT (2)", __func__); |
1da177e4 LT |
577 | status = ti_command_out_sync(tdev, TI_START_PORT, |
578 | (__u8)(TI_UART1_PORT + port_number), 0, NULL, 0); | |
579 | if (status) { | |
a30fa793 AC |
580 | dev_err(&port->dev, "%s - cannot send start command (2), %d\n", |
581 | __func__, status); | |
1da177e4 LT |
582 | goto unlink_int_urb; |
583 | } | |
584 | ||
585 | /* start read urb */ | |
441b62c1 | 586 | dbg("%s - start read urb", __func__); |
1da177e4 LT |
587 | urb = port->read_urb; |
588 | if (!urb) { | |
441b62c1 | 589 | dev_err(&port->dev, "%s - no read urb\n", __func__); |
1da177e4 LT |
590 | status = -EINVAL; |
591 | goto unlink_int_urb; | |
592 | } | |
593 | tport->tp_read_urb_state = TI_READ_URB_RUNNING; | |
1da177e4 | 594 | urb->context = tport; |
1da177e4 LT |
595 | status = usb_submit_urb(urb, GFP_KERNEL); |
596 | if (status) { | |
a30fa793 AC |
597 | dev_err(&port->dev, "%s - submit read urb failed, %d\n", |
598 | __func__, status); | |
1da177e4 LT |
599 | goto unlink_int_urb; |
600 | } | |
601 | ||
602 | tport->tp_is_open = 1; | |
603 | ++tdev->td_open_port_count; | |
604 | ||
9da0068a | 605 | goto release_lock; |
1da177e4 LT |
606 | |
607 | unlink_int_urb: | |
608 | if (tdev->td_open_port_count == 0) | |
609 | usb_kill_urb(port->serial->port[0]->interrupt_in_urb); | |
9da0068a MK |
610 | release_lock: |
611 | mutex_unlock(&tdev->td_open_close_lock); | |
441b62c1 | 612 | dbg("%s - exit %d", __func__, status); |
1da177e4 LT |
613 | return status; |
614 | } | |
615 | ||
616 | ||
335f8514 | 617 | static void ti_close(struct usb_serial_port *port) |
1da177e4 LT |
618 | { |
619 | struct ti_device *tdev; | |
620 | struct ti_port *tport; | |
621 | int port_number; | |
622 | int status; | |
9da0068a | 623 | int do_unlock; |
1da177e4 | 624 | |
1da177e4 LT |
625 | tdev = usb_get_serial_data(port->serial); |
626 | tport = usb_get_serial_port_data(port); | |
627 | if (tdev == NULL || tport == NULL) | |
628 | return; | |
629 | ||
630 | tport->tp_is_open = 0; | |
631 | ||
632 | ti_drain(tport, (tport->tp_closing_wait*HZ)/100, 1); | |
633 | ||
634 | usb_kill_urb(port->read_urb); | |
635 | usb_kill_urb(port->write_urb); | |
636 | tport->tp_write_urb_in_use = 0; | |
637 | ||
638 | port_number = port->number - port->serial->minor; | |
639 | ||
441b62c1 | 640 | dbg("%s - sending TI_CLOSE_PORT", __func__); |
1da177e4 LT |
641 | status = ti_command_out_sync(tdev, TI_CLOSE_PORT, |
642 | (__u8)(TI_UART1_PORT + port_number), 0, NULL, 0); | |
643 | if (status) | |
a30fa793 AC |
644 | dev_err(&port->dev, |
645 | "%s - cannot send close port command, %d\n" | |
646 | , __func__, status); | |
1da177e4 | 647 | |
9da0068a MK |
648 | /* if mutex_lock is interrupted, continue anyway */ |
649 | do_unlock = !mutex_lock_interruptible(&tdev->td_open_close_lock); | |
1da177e4 LT |
650 | --tport->tp_tdev->td_open_port_count; |
651 | if (tport->tp_tdev->td_open_port_count <= 0) { | |
652 | /* last port is closed, shut down interrupt urb */ | |
653 | usb_kill_urb(port->serial->port[0]->interrupt_in_urb); | |
654 | tport->tp_tdev->td_open_port_count = 0; | |
655 | } | |
9da0068a MK |
656 | if (do_unlock) |
657 | mutex_unlock(&tdev->td_open_close_lock); | |
1da177e4 LT |
658 | } |
659 | ||
660 | ||
95da310e AC |
661 | static int ti_write(struct tty_struct *tty, struct usb_serial_port *port, |
662 | const unsigned char *data, int count) | |
1da177e4 LT |
663 | { |
664 | struct ti_port *tport = usb_get_serial_port_data(port); | |
1da177e4 | 665 | |
1da177e4 | 666 | if (count == 0) { |
441b62c1 | 667 | dbg("%s - write request of 0 bytes", __func__); |
1da177e4 LT |
668 | return 0; |
669 | } | |
670 | ||
671 | if (tport == NULL || !tport->tp_is_open) | |
672 | return -ENODEV; | |
673 | ||
074ef65a JH |
674 | count = kfifo_in_locked(&tport->write_fifo, data, count, |
675 | &tport->tp_lock); | |
1da177e4 LT |
676 | ti_send(tport); |
677 | ||
678 | return count; | |
679 | } | |
680 | ||
681 | ||
95da310e | 682 | static int ti_write_room(struct tty_struct *tty) |
1da177e4 | 683 | { |
95da310e | 684 | struct usb_serial_port *port = tty->driver_data; |
1da177e4 LT |
685 | struct ti_port *tport = usb_get_serial_port_data(port); |
686 | int room = 0; | |
687 | unsigned long flags; | |
688 | ||
1da177e4 | 689 | if (tport == NULL) |
23198fda | 690 | return 0; |
a30fa793 | 691 | |
1da177e4 | 692 | spin_lock_irqsave(&tport->tp_lock, flags); |
074ef65a | 693 | room = kfifo_avail(&tport->write_fifo); |
1da177e4 LT |
694 | spin_unlock_irqrestore(&tport->tp_lock, flags); |
695 | ||
441b62c1 | 696 | dbg("%s - returns %d", __func__, room); |
1da177e4 LT |
697 | return room; |
698 | } | |
699 | ||
700 | ||
95da310e | 701 | static int ti_chars_in_buffer(struct tty_struct *tty) |
1da177e4 | 702 | { |
95da310e | 703 | struct usb_serial_port *port = tty->driver_data; |
1da177e4 LT |
704 | struct ti_port *tport = usb_get_serial_port_data(port); |
705 | int chars = 0; | |
706 | unsigned long flags; | |
707 | ||
1da177e4 | 708 | if (tport == NULL) |
23198fda | 709 | return 0; |
1da177e4 LT |
710 | |
711 | spin_lock_irqsave(&tport->tp_lock, flags); | |
074ef65a | 712 | chars = kfifo_len(&tport->write_fifo); |
1da177e4 LT |
713 | spin_unlock_irqrestore(&tport->tp_lock, flags); |
714 | ||
441b62c1 | 715 | dbg("%s - returns %d", __func__, chars); |
1da177e4 LT |
716 | return chars; |
717 | } | |
718 | ||
719 | ||
95da310e | 720 | static void ti_throttle(struct tty_struct *tty) |
1da177e4 | 721 | { |
95da310e | 722 | struct usb_serial_port *port = tty->driver_data; |
1da177e4 | 723 | struct ti_port *tport = usb_get_serial_port_data(port); |
1da177e4 | 724 | |
1da177e4 LT |
725 | if (tport == NULL) |
726 | return; | |
727 | ||
1da177e4 LT |
728 | if (I_IXOFF(tty) || C_CRTSCTS(tty)) |
729 | ti_stop_read(tport, tty); | |
730 | ||
731 | } | |
732 | ||
733 | ||
95da310e | 734 | static void ti_unthrottle(struct tty_struct *tty) |
1da177e4 | 735 | { |
95da310e | 736 | struct usb_serial_port *port = tty->driver_data; |
1da177e4 | 737 | struct ti_port *tport = usb_get_serial_port_data(port); |
1da177e4 LT |
738 | int status; |
739 | ||
1da177e4 LT |
740 | if (tport == NULL) |
741 | return; | |
742 | ||
1da177e4 LT |
743 | if (I_IXOFF(tty) || C_CRTSCTS(tty)) { |
744 | status = ti_restart_read(tport, tty); | |
745 | if (status) | |
a30fa793 AC |
746 | dev_err(&port->dev, "%s - cannot restart read, %d\n", |
747 | __func__, status); | |
1da177e4 LT |
748 | } |
749 | } | |
750 | ||
0bca1b91 AC |
751 | static int ti_get_icount(struct tty_struct *tty, |
752 | struct serial_icounter_struct *icount) | |
753 | { | |
754 | struct usb_serial_port *port = tty->driver_data; | |
755 | struct ti_port *tport = usb_get_serial_port_data(port); | |
756 | struct async_icount cnow = tport->tp_icount; | |
757 | ||
758 | dbg("%s - (%d) TIOCGICOUNT RX=%d, TX=%d", | |
759 | __func__, port->number, | |
760 | cnow.rx, cnow.tx); | |
761 | ||
762 | icount->cts = cnow.cts; | |
763 | icount->dsr = cnow.dsr; | |
764 | icount->rng = cnow.rng; | |
765 | icount->dcd = cnow.dcd; | |
766 | icount->rx = cnow.rx; | |
767 | icount->tx = cnow.tx; | |
768 | icount->frame = cnow.frame; | |
769 | icount->overrun = cnow.overrun; | |
770 | icount->parity = cnow.parity; | |
771 | icount->brk = cnow.brk; | |
772 | icount->buf_overrun = cnow.buf_overrun; | |
773 | ||
774 | return 0; | |
775 | } | |
1da177e4 | 776 | |
00a0d0d6 | 777 | static int ti_ioctl(struct tty_struct *tty, |
1da177e4 LT |
778 | unsigned int cmd, unsigned long arg) |
779 | { | |
95da310e | 780 | struct usb_serial_port *port = tty->driver_data; |
1da177e4 LT |
781 | struct ti_port *tport = usb_get_serial_port_data(port); |
782 | struct async_icount cnow; | |
783 | struct async_icount cprev; | |
784 | ||
441b62c1 | 785 | dbg("%s - port %d, cmd = 0x%04X", __func__, port->number, cmd); |
1da177e4 LT |
786 | |
787 | if (tport == NULL) | |
788 | return -ENODEV; | |
789 | ||
790 | switch (cmd) { | |
a30fa793 AC |
791 | case TIOCGSERIAL: |
792 | dbg("%s - (%d) TIOCGSERIAL", __func__, port->number); | |
793 | return ti_get_serial_info(tport, | |
794 | (struct serial_struct __user *)arg); | |
795 | case TIOCSSERIAL: | |
796 | dbg("%s - (%d) TIOCSSERIAL", __func__, port->number); | |
4a90f09b AC |
797 | return ti_set_serial_info(tty, tport, |
798 | (struct serial_struct __user *)arg); | |
a30fa793 AC |
799 | case TIOCMIWAIT: |
800 | dbg("%s - (%d) TIOCMIWAIT", __func__, port->number); | |
801 | cprev = tport->tp_icount; | |
802 | while (1) { | |
803 | interruptible_sleep_on(&tport->tp_msr_wait); | |
804 | if (signal_pending(current)) | |
805 | return -ERESTARTSYS; | |
806 | cnow = tport->tp_icount; | |
807 | if (cnow.rng == cprev.rng && cnow.dsr == cprev.dsr && | |
808 | cnow.dcd == cprev.dcd && cnow.cts == cprev.cts) | |
809 | return -EIO; /* no change => error */ | |
810 | if (((arg & TIOCM_RNG) && (cnow.rng != cprev.rng)) || | |
811 | ((arg & TIOCM_DSR) && (cnow.dsr != cprev.dsr)) || | |
812 | ((arg & TIOCM_CD) && (cnow.dcd != cprev.dcd)) || | |
813 | ((arg & TIOCM_CTS) && (cnow.cts != cprev.cts))) | |
814 | return 0; | |
815 | cprev = cnow; | |
816 | } | |
817 | break; | |
1da177e4 | 818 | } |
1da177e4 LT |
819 | return -ENOIOCTLCMD; |
820 | } | |
821 | ||
822 | ||
95da310e AC |
823 | static void ti_set_termios(struct tty_struct *tty, |
824 | struct usb_serial_port *port, struct ktermios *old_termios) | |
1da177e4 LT |
825 | { |
826 | struct ti_port *tport = usb_get_serial_port_data(port); | |
1da177e4 | 827 | struct ti_uart_config *config; |
a30fa793 | 828 | tcflag_t cflag, iflag; |
1da177e4 LT |
829 | int baud; |
830 | int status; | |
831 | int port_number = port->number - port->serial->minor; | |
832 | unsigned int mcr; | |
833 | ||
adc8d746 AC |
834 | cflag = tty->termios.c_cflag; |
835 | iflag = tty->termios.c_iflag; | |
1da177e4 | 836 | |
441b62c1 | 837 | dbg("%s - cflag %08x, iflag %08x", __func__, cflag, iflag); |
a30fa793 AC |
838 | dbg("%s - old clfag %08x, old iflag %08x", __func__, |
839 | old_termios->c_cflag, old_termios->c_iflag); | |
1da177e4 LT |
840 | |
841 | if (tport == NULL) | |
842 | return; | |
843 | ||
844 | config = kmalloc(sizeof(*config), GFP_KERNEL); | |
845 | if (!config) { | |
441b62c1 | 846 | dev_err(&port->dev, "%s - out of memory\n", __func__); |
1da177e4 LT |
847 | return; |
848 | } | |
849 | ||
850 | config->wFlags = 0; | |
851 | ||
852 | /* these flags must be set */ | |
853 | config->wFlags |= TI_UART_ENABLE_MS_INTS; | |
854 | config->wFlags |= TI_UART_ENABLE_AUTO_START_DMA; | |
855 | config->bUartMode = (__u8)(tport->tp_uart_mode); | |
856 | ||
857 | switch (cflag & CSIZE) { | |
a30fa793 AC |
858 | case CS5: |
859 | config->bDataBits = TI_UART_5_DATA_BITS; | |
860 | break; | |
861 | case CS6: | |
862 | config->bDataBits = TI_UART_6_DATA_BITS; | |
863 | break; | |
864 | case CS7: | |
865 | config->bDataBits = TI_UART_7_DATA_BITS; | |
866 | break; | |
867 | default: | |
868 | case CS8: | |
869 | config->bDataBits = TI_UART_8_DATA_BITS; | |
870 | break; | |
1da177e4 LT |
871 | } |
872 | ||
537699ef | 873 | /* CMSPAR isn't supported by this driver */ |
adc8d746 | 874 | tty->termios.c_cflag &= ~CMSPAR; |
537699ef | 875 | |
1da177e4 LT |
876 | if (cflag & PARENB) { |
877 | if (cflag & PARODD) { | |
878 | config->wFlags |= TI_UART_ENABLE_PARITY_CHECKING; | |
879 | config->bParity = TI_UART_ODD_PARITY; | |
880 | } else { | |
881 | config->wFlags |= TI_UART_ENABLE_PARITY_CHECKING; | |
882 | config->bParity = TI_UART_EVEN_PARITY; | |
883 | } | |
884 | } else { | |
885 | config->wFlags &= ~TI_UART_ENABLE_PARITY_CHECKING; | |
a30fa793 | 886 | config->bParity = TI_UART_NO_PARITY; |
1da177e4 LT |
887 | } |
888 | ||
889 | if (cflag & CSTOPB) | |
890 | config->bStopBits = TI_UART_2_STOP_BITS; | |
891 | else | |
892 | config->bStopBits = TI_UART_1_STOP_BITS; | |
893 | ||
894 | if (cflag & CRTSCTS) { | |
895 | /* RTS flow control must be off to drop RTS for baud rate B0 */ | |
896 | if ((cflag & CBAUD) != B0) | |
897 | config->wFlags |= TI_UART_ENABLE_RTS_IN; | |
898 | config->wFlags |= TI_UART_ENABLE_CTS_OUT; | |
899 | } else { | |
900 | tty->hw_stopped = 0; | |
901 | ti_restart_read(tport, tty); | |
902 | } | |
903 | ||
904 | if (I_IXOFF(tty) || I_IXON(tty)) { | |
905 | config->cXon = START_CHAR(tty); | |
906 | config->cXoff = STOP_CHAR(tty); | |
907 | ||
908 | if (I_IXOFF(tty)) | |
909 | config->wFlags |= TI_UART_ENABLE_X_IN; | |
910 | else | |
911 | ti_restart_read(tport, tty); | |
912 | ||
913 | if (I_IXON(tty)) | |
914 | config->wFlags |= TI_UART_ENABLE_X_OUT; | |
915 | } | |
916 | ||
917 | baud = tty_get_baud_rate(tty); | |
537699ef AC |
918 | if (!baud) |
919 | baud = 9600; | |
1da177e4 LT |
920 | if (tport->tp_tdev->td_is_3410) |
921 | config->wBaudRate = (__u16)((923077 + baud/2) / baud); | |
922 | else | |
923 | config->wBaudRate = (__u16)((461538 + baud/2) / baud); | |
924 | ||
537699ef AC |
925 | /* FIXME: Should calculate resulting baud here and report it back */ |
926 | if ((cflag & CBAUD) != B0) | |
927 | tty_encode_baud_rate(tty, baud, baud); | |
928 | ||
1da177e4 | 929 | dbg("%s - BaudRate=%d, wBaudRate=%d, wFlags=0x%04X, bDataBits=%d, bParity=%d, bStopBits=%d, cXon=%d, cXoff=%d, bUartMode=%d", |
441b62c1 | 930 | __func__, baud, config->wBaudRate, config->wFlags, config->bDataBits, config->bParity, config->bStopBits, config->cXon, config->cXoff, config->bUartMode); |
1da177e4 LT |
931 | |
932 | cpu_to_be16s(&config->wBaudRate); | |
933 | cpu_to_be16s(&config->wFlags); | |
934 | ||
935 | status = ti_command_out_sync(tport->tp_tdev, TI_SET_CONFIG, | |
936 | (__u8)(TI_UART1_PORT + port_number), 0, (__u8 *)config, | |
937 | sizeof(*config)); | |
938 | if (status) | |
a30fa793 AC |
939 | dev_err(&port->dev, "%s - cannot set config on port %d, %d\n", |
940 | __func__, port_number, status); | |
1da177e4 LT |
941 | |
942 | /* SET_CONFIG asserts RTS and DTR, reset them correctly */ | |
943 | mcr = tport->tp_shadow_mcr; | |
944 | /* if baud rate is B0, clear RTS and DTR */ | |
945 | if ((cflag & CBAUD) == B0) | |
946 | mcr &= ~(TI_MCR_DTR | TI_MCR_RTS); | |
947 | status = ti_set_mcr(tport, mcr); | |
948 | if (status) | |
a30fa793 AC |
949 | dev_err(&port->dev, |
950 | "%s - cannot set modem control on port %d, %d\n", | |
951 | __func__, port_number, status); | |
1da177e4 LT |
952 | |
953 | kfree(config); | |
954 | } | |
955 | ||
956 | ||
60b33c13 | 957 | static int ti_tiocmget(struct tty_struct *tty) |
1da177e4 | 958 | { |
95da310e | 959 | struct usb_serial_port *port = tty->driver_data; |
1da177e4 LT |
960 | struct ti_port *tport = usb_get_serial_port_data(port); |
961 | unsigned int result; | |
962 | unsigned int msr; | |
963 | unsigned int mcr; | |
04ca89d4 | 964 | unsigned long flags; |
1da177e4 | 965 | |
1da177e4 LT |
966 | if (tport == NULL) |
967 | return -ENODEV; | |
968 | ||
04ca89d4 | 969 | spin_lock_irqsave(&tport->tp_lock, flags); |
1da177e4 LT |
970 | msr = tport->tp_msr; |
971 | mcr = tport->tp_shadow_mcr; | |
04ca89d4 | 972 | spin_unlock_irqrestore(&tport->tp_lock, flags); |
1da177e4 LT |
973 | |
974 | result = ((mcr & TI_MCR_DTR) ? TIOCM_DTR : 0) | |
975 | | ((mcr & TI_MCR_RTS) ? TIOCM_RTS : 0) | |
976 | | ((mcr & TI_MCR_LOOP) ? TIOCM_LOOP : 0) | |
977 | | ((msr & TI_MSR_CTS) ? TIOCM_CTS : 0) | |
978 | | ((msr & TI_MSR_CD) ? TIOCM_CAR : 0) | |
979 | | ((msr & TI_MSR_RI) ? TIOCM_RI : 0) | |
980 | | ((msr & TI_MSR_DSR) ? TIOCM_DSR : 0); | |
981 | ||
441b62c1 | 982 | dbg("%s - 0x%04X", __func__, result); |
1da177e4 LT |
983 | |
984 | return result; | |
985 | } | |
986 | ||
987 | ||
20b9d177 AC |
988 | static int ti_tiocmset(struct tty_struct *tty, |
989 | unsigned int set, unsigned int clear) | |
1da177e4 | 990 | { |
95da310e | 991 | struct usb_serial_port *port = tty->driver_data; |
1da177e4 LT |
992 | struct ti_port *tport = usb_get_serial_port_data(port); |
993 | unsigned int mcr; | |
04ca89d4 | 994 | unsigned long flags; |
1da177e4 | 995 | |
1da177e4 LT |
996 | if (tport == NULL) |
997 | return -ENODEV; | |
998 | ||
04ca89d4 | 999 | spin_lock_irqsave(&tport->tp_lock, flags); |
1da177e4 LT |
1000 | mcr = tport->tp_shadow_mcr; |
1001 | ||
1002 | if (set & TIOCM_RTS) | |
1003 | mcr |= TI_MCR_RTS; | |
1004 | if (set & TIOCM_DTR) | |
1005 | mcr |= TI_MCR_DTR; | |
1006 | if (set & TIOCM_LOOP) | |
1007 | mcr |= TI_MCR_LOOP; | |
1008 | ||
1009 | if (clear & TIOCM_RTS) | |
1010 | mcr &= ~TI_MCR_RTS; | |
1011 | if (clear & TIOCM_DTR) | |
1012 | mcr &= ~TI_MCR_DTR; | |
1013 | if (clear & TIOCM_LOOP) | |
1014 | mcr &= ~TI_MCR_LOOP; | |
04ca89d4 | 1015 | spin_unlock_irqrestore(&tport->tp_lock, flags); |
1da177e4 LT |
1016 | |
1017 | return ti_set_mcr(tport, mcr); | |
1018 | } | |
1019 | ||
1020 | ||
95da310e | 1021 | static void ti_break(struct tty_struct *tty, int break_state) |
1da177e4 | 1022 | { |
95da310e | 1023 | struct usb_serial_port *port = tty->driver_data; |
1da177e4 LT |
1024 | struct ti_port *tport = usb_get_serial_port_data(port); |
1025 | int status; | |
1026 | ||
441b62c1 | 1027 | dbg("%s - state = %d", __func__, break_state); |
1da177e4 LT |
1028 | |
1029 | if (tport == NULL) | |
1030 | return; | |
1031 | ||
1032 | ti_drain(tport, (tport->tp_closing_wait*HZ)/100, 0); | |
1033 | ||
1034 | status = ti_write_byte(tport->tp_tdev, | |
1035 | tport->tp_uart_base_addr + TI_UART_OFFSET_LCR, | |
1036 | TI_LCR_BREAK, break_state == -1 ? TI_LCR_BREAK : 0); | |
1037 | ||
1038 | if (status) | |
441b62c1 | 1039 | dbg("%s - error setting break, %d", __func__, status); |
1da177e4 LT |
1040 | } |
1041 | ||
1042 | ||
7d12e780 | 1043 | static void ti_interrupt_callback(struct urb *urb) |
1da177e4 | 1044 | { |
cdc97792 | 1045 | struct ti_device *tdev = urb->context; |
1da177e4 LT |
1046 | struct usb_serial_port *port; |
1047 | struct usb_serial *serial = tdev->td_serial; | |
1048 | struct ti_port *tport; | |
1049 | struct device *dev = &urb->dev->dev; | |
1050 | unsigned char *data = urb->transfer_buffer; | |
1051 | int length = urb->actual_length; | |
1052 | int port_number; | |
1053 | int function; | |
52171b48 GKH |
1054 | int status = urb->status; |
1055 | int retval; | |
1da177e4 LT |
1056 | __u8 msr; |
1057 | ||
52171b48 | 1058 | switch (status) { |
1da177e4 LT |
1059 | case 0: |
1060 | break; | |
1061 | case -ECONNRESET: | |
1062 | case -ENOENT: | |
1063 | case -ESHUTDOWN: | |
441b62c1 | 1064 | dbg("%s - urb shutting down, %d", __func__, status); |
1da177e4 LT |
1065 | tdev->td_urb_error = 1; |
1066 | return; | |
1067 | default: | |
52171b48 | 1068 | dev_err(dev, "%s - nonzero urb status, %d\n", |
441b62c1 | 1069 | __func__, status); |
1da177e4 LT |
1070 | tdev->td_urb_error = 1; |
1071 | goto exit; | |
1072 | } | |
1073 | ||
1074 | if (length != 2) { | |
441b62c1 | 1075 | dbg("%s - bad packet size, %d", __func__, length); |
1da177e4 LT |
1076 | goto exit; |
1077 | } | |
1078 | ||
1079 | if (data[0] == TI_CODE_HARDWARE_ERROR) { | |
441b62c1 | 1080 | dev_err(dev, "%s - hardware error, %d\n", __func__, data[1]); |
1da177e4 LT |
1081 | goto exit; |
1082 | } | |
1083 | ||
1084 | port_number = TI_GET_PORT_FROM_CODE(data[0]); | |
1085 | function = TI_GET_FUNC_FROM_CODE(data[0]); | |
1086 | ||
a30fa793 AC |
1087 | dbg("%s - port_number %d, function %d, data 0x%02X", |
1088 | __func__, port_number, function, data[1]); | |
1da177e4 LT |
1089 | |
1090 | if (port_number >= serial->num_ports) { | |
a30fa793 AC |
1091 | dev_err(dev, "%s - bad port number, %d\n", |
1092 | __func__, port_number); | |
1da177e4 LT |
1093 | goto exit; |
1094 | } | |
1095 | ||
1096 | port = serial->port[port_number]; | |
1097 | ||
1098 | tport = usb_get_serial_port_data(port); | |
1099 | if (!tport) | |
1100 | goto exit; | |
1101 | ||
1102 | switch (function) { | |
1103 | case TI_CODE_DATA_ERROR: | |
a30fa793 AC |
1104 | dev_err(dev, "%s - DATA ERROR, port %d, data 0x%02X\n", |
1105 | __func__, port_number, data[1]); | |
1da177e4 LT |
1106 | break; |
1107 | ||
1108 | case TI_CODE_MODEM_STATUS: | |
1109 | msr = data[1]; | |
441b62c1 | 1110 | dbg("%s - port %d, msr 0x%02X", __func__, port_number, msr); |
1da177e4 LT |
1111 | ti_handle_new_msr(tport, msr); |
1112 | break; | |
1113 | ||
1114 | default: | |
a30fa793 AC |
1115 | dev_err(dev, "%s - unknown interrupt code, 0x%02X\n", |
1116 | __func__, data[1]); | |
1da177e4 LT |
1117 | break; |
1118 | } | |
1119 | ||
1120 | exit: | |
52171b48 GKH |
1121 | retval = usb_submit_urb(urb, GFP_ATOMIC); |
1122 | if (retval) | |
1123 | dev_err(dev, "%s - resubmit interrupt urb failed, %d\n", | |
441b62c1 | 1124 | __func__, retval); |
1da177e4 LT |
1125 | } |
1126 | ||
1127 | ||
7d12e780 | 1128 | static void ti_bulk_in_callback(struct urb *urb) |
1da177e4 | 1129 | { |
cdc97792 | 1130 | struct ti_port *tport = urb->context; |
1da177e4 LT |
1131 | struct usb_serial_port *port = tport->tp_port; |
1132 | struct device *dev = &urb->dev->dev; | |
52171b48 GKH |
1133 | int status = urb->status; |
1134 | int retval = 0; | |
4a90f09b | 1135 | struct tty_struct *tty; |
1da177e4 | 1136 | |
52171b48 | 1137 | switch (status) { |
1da177e4 LT |
1138 | case 0: |
1139 | break; | |
1140 | case -ECONNRESET: | |
1141 | case -ENOENT: | |
1142 | case -ESHUTDOWN: | |
441b62c1 | 1143 | dbg("%s - urb shutting down, %d", __func__, status); |
1da177e4 LT |
1144 | tport->tp_tdev->td_urb_error = 1; |
1145 | wake_up_interruptible(&tport->tp_write_wait); | |
1146 | return; | |
1147 | default: | |
52171b48 | 1148 | dev_err(dev, "%s - nonzero urb status, %d\n", |
a30fa793 | 1149 | __func__, status); |
1da177e4 LT |
1150 | tport->tp_tdev->td_urb_error = 1; |
1151 | wake_up_interruptible(&tport->tp_write_wait); | |
1152 | } | |
1153 | ||
52171b48 | 1154 | if (status == -EPIPE) |
1da177e4 LT |
1155 | goto exit; |
1156 | ||
52171b48 | 1157 | if (status) { |
441b62c1 | 1158 | dev_err(dev, "%s - stopping read!\n", __func__); |
1da177e4 LT |
1159 | return; |
1160 | } | |
1161 | ||
4a90f09b | 1162 | tty = tty_port_tty_get(&port->port); |
cf545093 AC |
1163 | if (tty) { |
1164 | if (urb->actual_length) { | |
1165 | usb_serial_debug_data(debug, dev, __func__, | |
1166 | urb->actual_length, urb->transfer_buffer); | |
1167 | ||
1168 | if (!tport->tp_is_open) | |
1169 | dbg("%s - port closed, dropping data", | |
1170 | __func__); | |
1171 | else | |
1172 | ti_recv(&urb->dev->dev, tty, | |
a30fa793 AC |
1173 | urb->transfer_buffer, |
1174 | urb->actual_length); | |
cf545093 AC |
1175 | spin_lock(&tport->tp_lock); |
1176 | tport->tp_icount.rx += urb->actual_length; | |
1177 | spin_unlock(&tport->tp_lock); | |
1178 | } | |
4a90f09b | 1179 | tty_kref_put(tty); |
1da177e4 LT |
1180 | } |
1181 | ||
1182 | exit: | |
1183 | /* continue to read unless stopping */ | |
1184 | spin_lock(&tport->tp_lock); | |
5833041f | 1185 | if (tport->tp_read_urb_state == TI_READ_URB_RUNNING) |
52171b48 | 1186 | retval = usb_submit_urb(urb, GFP_ATOMIC); |
5833041f | 1187 | else if (tport->tp_read_urb_state == TI_READ_URB_STOPPING) |
1da177e4 | 1188 | tport->tp_read_urb_state = TI_READ_URB_STOPPED; |
5833041f | 1189 | |
1da177e4 | 1190 | spin_unlock(&tport->tp_lock); |
52171b48 GKH |
1191 | if (retval) |
1192 | dev_err(dev, "%s - resubmit read urb failed, %d\n", | |
441b62c1 | 1193 | __func__, retval); |
1da177e4 LT |
1194 | } |
1195 | ||
1196 | ||
7d12e780 | 1197 | static void ti_bulk_out_callback(struct urb *urb) |
1da177e4 | 1198 | { |
cdc97792 | 1199 | struct ti_port *tport = urb->context; |
1da177e4 | 1200 | struct usb_serial_port *port = tport->tp_port; |
52171b48 | 1201 | int status = urb->status; |
1da177e4 | 1202 | |
1da177e4 LT |
1203 | tport->tp_write_urb_in_use = 0; |
1204 | ||
52171b48 | 1205 | switch (status) { |
1da177e4 LT |
1206 | case 0: |
1207 | break; | |
1208 | case -ECONNRESET: | |
1209 | case -ENOENT: | |
1210 | case -ESHUTDOWN: | |
441b62c1 | 1211 | dbg("%s - urb shutting down, %d", __func__, status); |
1da177e4 LT |
1212 | tport->tp_tdev->td_urb_error = 1; |
1213 | wake_up_interruptible(&tport->tp_write_wait); | |
1214 | return; | |
1215 | default: | |
22a416c4 | 1216 | dev_err_console(port, "%s - nonzero urb status, %d\n", |
441b62c1 | 1217 | __func__, status); |
1da177e4 LT |
1218 | tport->tp_tdev->td_urb_error = 1; |
1219 | wake_up_interruptible(&tport->tp_write_wait); | |
1220 | } | |
1221 | ||
1222 | /* send any buffered data */ | |
1223 | ti_send(tport); | |
1224 | } | |
1225 | ||
1226 | ||
1227 | static void ti_recv(struct device *dev, struct tty_struct *tty, | |
1228 | unsigned char *data, int length) | |
1229 | { | |
1230 | int cnt; | |
1231 | ||
1232 | do { | |
a108bfcb | 1233 | cnt = tty_insert_flip_string(tty, data, length); |
33f0f88f | 1234 | if (cnt < length) { |
a30fa793 AC |
1235 | dev_err(dev, "%s - dropping data, %d bytes lost\n", |
1236 | __func__, length - cnt); | |
1237 | if (cnt == 0) | |
33f0f88f | 1238 | break; |
1da177e4 | 1239 | } |
33f0f88f | 1240 | tty_flip_buffer_push(tty); |
1da177e4 LT |
1241 | data += cnt; |
1242 | length -= cnt; | |
1243 | } while (length > 0); | |
1244 | ||
1da177e4 LT |
1245 | } |
1246 | ||
1247 | ||
1248 | static void ti_send(struct ti_port *tport) | |
1249 | { | |
1250 | int count, result; | |
1251 | struct usb_serial_port *port = tport->tp_port; | |
4a90f09b | 1252 | struct tty_struct *tty = tty_port_tty_get(&port->port); /* FIXME */ |
1da177e4 LT |
1253 | unsigned long flags; |
1254 | ||
1da177e4 LT |
1255 | spin_lock_irqsave(&tport->tp_lock, flags); |
1256 | ||
4a90f09b AC |
1257 | if (tport->tp_write_urb_in_use) |
1258 | goto unlock; | |
1da177e4 | 1259 | |
074ef65a | 1260 | count = kfifo_out(&tport->write_fifo, |
1da177e4 LT |
1261 | port->write_urb->transfer_buffer, |
1262 | port->bulk_out_size); | |
1263 | ||
4a90f09b AC |
1264 | if (count == 0) |
1265 | goto unlock; | |
1da177e4 LT |
1266 | |
1267 | tport->tp_write_urb_in_use = 1; | |
1268 | ||
1269 | spin_unlock_irqrestore(&tport->tp_lock, flags); | |
1270 | ||
a30fa793 AC |
1271 | usb_serial_debug_data(debug, &port->dev, __func__, count, |
1272 | port->write_urb->transfer_buffer); | |
1da177e4 LT |
1273 | |
1274 | usb_fill_bulk_urb(port->write_urb, port->serial->dev, | |
1275 | usb_sndbulkpipe(port->serial->dev, | |
1276 | port->bulk_out_endpointAddress), | |
1277 | port->write_urb->transfer_buffer, count, | |
1278 | ti_bulk_out_callback, tport); | |
1279 | ||
1280 | result = usb_submit_urb(port->write_urb, GFP_ATOMIC); | |
1281 | if (result) { | |
22a416c4 | 1282 | dev_err_console(port, "%s - submit write urb failed, %d\n", |
a30fa793 AC |
1283 | __func__, result); |
1284 | tport->tp_write_urb_in_use = 0; | |
1da177e4 LT |
1285 | /* TODO: reschedule ti_send */ |
1286 | } else { | |
1287 | spin_lock_irqsave(&tport->tp_lock, flags); | |
1288 | tport->tp_icount.tx += count; | |
1289 | spin_unlock_irqrestore(&tport->tp_lock, flags); | |
1290 | } | |
1291 | ||
1292 | /* more room in the buffer for new writes, wakeup */ | |
1293 | if (tty) | |
1294 | tty_wakeup(tty); | |
4a90f09b | 1295 | tty_kref_put(tty); |
1da177e4 | 1296 | wake_up_interruptible(&tport->tp_write_wait); |
4a90f09b AC |
1297 | return; |
1298 | unlock: | |
1299 | spin_unlock_irqrestore(&tport->tp_lock, flags); | |
1300 | tty_kref_put(tty); | |
1301 | return; | |
1da177e4 LT |
1302 | } |
1303 | ||
1304 | ||
1305 | static int ti_set_mcr(struct ti_port *tport, unsigned int mcr) | |
1306 | { | |
04ca89d4 | 1307 | unsigned long flags; |
1da177e4 LT |
1308 | int status; |
1309 | ||
1310 | status = ti_write_byte(tport->tp_tdev, | |
1311 | tport->tp_uart_base_addr + TI_UART_OFFSET_MCR, | |
1312 | TI_MCR_RTS | TI_MCR_DTR | TI_MCR_LOOP, mcr); | |
1313 | ||
04ca89d4 | 1314 | spin_lock_irqsave(&tport->tp_lock, flags); |
1da177e4 LT |
1315 | if (!status) |
1316 | tport->tp_shadow_mcr = mcr; | |
04ca89d4 | 1317 | spin_unlock_irqrestore(&tport->tp_lock, flags); |
1da177e4 LT |
1318 | |
1319 | return status; | |
1320 | } | |
1321 | ||
1322 | ||
1323 | static int ti_get_lsr(struct ti_port *tport) | |
1324 | { | |
a30fa793 | 1325 | int size, status; |
1da177e4 LT |
1326 | struct ti_device *tdev = tport->tp_tdev; |
1327 | struct usb_serial_port *port = tport->tp_port; | |
1328 | int port_number = port->number - port->serial->minor; | |
1329 | struct ti_port_status *data; | |
1330 | ||
1da177e4 LT |
1331 | size = sizeof(struct ti_port_status); |
1332 | data = kmalloc(size, GFP_KERNEL); | |
1333 | if (!data) { | |
441b62c1 | 1334 | dev_err(&port->dev, "%s - out of memory\n", __func__); |
1da177e4 LT |
1335 | return -ENOMEM; |
1336 | } | |
1337 | ||
1338 | status = ti_command_in_sync(tdev, TI_GET_PORT_STATUS, | |
1339 | (__u8)(TI_UART1_PORT+port_number), 0, (__u8 *)data, size); | |
1340 | if (status) { | |
a30fa793 AC |
1341 | dev_err(&port->dev, |
1342 | "%s - get port status command failed, %d\n", | |
1343 | __func__, status); | |
1da177e4 LT |
1344 | goto free_data; |
1345 | } | |
1346 | ||
441b62c1 | 1347 | dbg("%s - lsr 0x%02X", __func__, data->bLSR); |
1da177e4 LT |
1348 | |
1349 | tport->tp_lsr = data->bLSR; | |
1350 | ||
1351 | free_data: | |
1352 | kfree(data); | |
1353 | return status; | |
1354 | } | |
1355 | ||
1356 | ||
1357 | static int ti_get_serial_info(struct ti_port *tport, | |
1358 | struct serial_struct __user *ret_arg) | |
1359 | { | |
1360 | struct usb_serial_port *port = tport->tp_port; | |
1361 | struct serial_struct ret_serial; | |
1362 | ||
1363 | if (!ret_arg) | |
1364 | return -EFAULT; | |
1365 | ||
1366 | memset(&ret_serial, 0, sizeof(ret_serial)); | |
1367 | ||
1368 | ret_serial.type = PORT_16550A; | |
1369 | ret_serial.line = port->serial->minor; | |
1370 | ret_serial.port = port->number - port->serial->minor; | |
1371 | ret_serial.flags = tport->tp_flags; | |
1372 | ret_serial.xmit_fifo_size = TI_WRITE_BUF_SIZE; | |
1373 | ret_serial.baud_base = tport->tp_tdev->td_is_3410 ? 921600 : 460800; | |
1374 | ret_serial.closing_wait = tport->tp_closing_wait; | |
1375 | ||
1376 | if (copy_to_user(ret_arg, &ret_serial, sizeof(*ret_arg))) | |
1377 | return -EFAULT; | |
1378 | ||
1379 | return 0; | |
1380 | } | |
1381 | ||
1382 | ||
4a90f09b | 1383 | static int ti_set_serial_info(struct tty_struct *tty, struct ti_port *tport, |
1da177e4 LT |
1384 | struct serial_struct __user *new_arg) |
1385 | { | |
1da177e4 LT |
1386 | struct serial_struct new_serial; |
1387 | ||
1388 | if (copy_from_user(&new_serial, new_arg, sizeof(new_serial))) | |
1389 | return -EFAULT; | |
1390 | ||
1391 | tport->tp_flags = new_serial.flags & TI_SET_SERIAL_FLAGS; | |
1da177e4 LT |
1392 | tport->tp_closing_wait = new_serial.closing_wait; |
1393 | ||
1394 | return 0; | |
1395 | } | |
1396 | ||
1397 | ||
1398 | static void ti_handle_new_msr(struct ti_port *tport, __u8 msr) | |
1399 | { | |
1400 | struct async_icount *icount; | |
1401 | struct tty_struct *tty; | |
1402 | unsigned long flags; | |
1403 | ||
441b62c1 | 1404 | dbg("%s - msr 0x%02X", __func__, msr); |
1da177e4 LT |
1405 | |
1406 | if (msr & TI_MSR_DELTA_MASK) { | |
1407 | spin_lock_irqsave(&tport->tp_lock, flags); | |
1408 | icount = &tport->tp_icount; | |
1409 | if (msr & TI_MSR_DELTA_CTS) | |
1410 | icount->cts++; | |
1411 | if (msr & TI_MSR_DELTA_DSR) | |
1412 | icount->dsr++; | |
1413 | if (msr & TI_MSR_DELTA_CD) | |
1414 | icount->dcd++; | |
1415 | if (msr & TI_MSR_DELTA_RI) | |
1416 | icount->rng++; | |
1417 | wake_up_interruptible(&tport->tp_msr_wait); | |
1418 | spin_unlock_irqrestore(&tport->tp_lock, flags); | |
1419 | } | |
1420 | ||
1421 | tport->tp_msr = msr & TI_MSR_MASK; | |
1422 | ||
1423 | /* handle CTS flow control */ | |
4a90f09b | 1424 | tty = tty_port_tty_get(&tport->tp_port->port); |
1da177e4 LT |
1425 | if (tty && C_CRTSCTS(tty)) { |
1426 | if (msr & TI_MSR_CTS) { | |
1427 | tty->hw_stopped = 0; | |
1428 | tty_wakeup(tty); | |
1429 | } else { | |
1430 | tty->hw_stopped = 1; | |
1431 | } | |
1432 | } | |
4a90f09b | 1433 | tty_kref_put(tty); |
1da177e4 LT |
1434 | } |
1435 | ||
1436 | ||
1437 | static void ti_drain(struct ti_port *tport, unsigned long timeout, int flush) | |
1438 | { | |
1439 | struct ti_device *tdev = tport->tp_tdev; | |
1440 | struct usb_serial_port *port = tport->tp_port; | |
1441 | wait_queue_t wait; | |
1da177e4 | 1442 | |
0915f490 | 1443 | spin_lock_irq(&tport->tp_lock); |
1da177e4 LT |
1444 | |
1445 | /* wait for data to drain from the buffer */ | |
1446 | tdev->td_urb_error = 0; | |
1447 | init_waitqueue_entry(&wait, current); | |
1448 | add_wait_queue(&tport->tp_write_wait, &wait); | |
1449 | for (;;) { | |
1450 | set_current_state(TASK_INTERRUPTIBLE); | |
074ef65a | 1451 | if (kfifo_len(&tport->write_fifo) == 0 |
1da177e4 LT |
1452 | || timeout == 0 || signal_pending(current) |
1453 | || tdev->td_urb_error | |
0915f490 | 1454 | || port->serial->disconnected) /* disconnect */ |
1da177e4 | 1455 | break; |
0915f490 | 1456 | spin_unlock_irq(&tport->tp_lock); |
1da177e4 | 1457 | timeout = schedule_timeout(timeout); |
0915f490 | 1458 | spin_lock_irq(&tport->tp_lock); |
1da177e4 LT |
1459 | } |
1460 | set_current_state(TASK_RUNNING); | |
1461 | remove_wait_queue(&tport->tp_write_wait, &wait); | |
1462 | ||
1463 | /* flush any remaining data in the buffer */ | |
1464 | if (flush) | |
074ef65a | 1465 | kfifo_reset_out(&tport->write_fifo); |
1da177e4 | 1466 | |
0915f490 | 1467 | spin_unlock_irq(&tport->tp_lock); |
1da177e4 | 1468 | |
0915f490 | 1469 | mutex_lock(&port->serial->disc_mutex); |
1da177e4 LT |
1470 | /* wait for data to drain from the device */ |
1471 | /* wait for empty tx register, plus 20 ms */ | |
1472 | timeout += jiffies; | |
1473 | tport->tp_lsr &= ~TI_LSR_TX_EMPTY; | |
1474 | while ((long)(jiffies - timeout) < 0 && !signal_pending(current) | |
1475 | && !(tport->tp_lsr&TI_LSR_TX_EMPTY) && !tdev->td_urb_error | |
0915f490 | 1476 | && !port->serial->disconnected) { |
1da177e4 LT |
1477 | if (ti_get_lsr(tport)) |
1478 | break; | |
0915f490 | 1479 | mutex_unlock(&port->serial->disc_mutex); |
1da177e4 | 1480 | msleep_interruptible(20); |
0915f490 | 1481 | mutex_lock(&port->serial->disc_mutex); |
1da177e4 | 1482 | } |
0915f490 | 1483 | mutex_unlock(&port->serial->disc_mutex); |
1da177e4 LT |
1484 | } |
1485 | ||
1486 | ||
1487 | static void ti_stop_read(struct ti_port *tport, struct tty_struct *tty) | |
1488 | { | |
1489 | unsigned long flags; | |
1490 | ||
1491 | spin_lock_irqsave(&tport->tp_lock, flags); | |
1492 | ||
1493 | if (tport->tp_read_urb_state == TI_READ_URB_RUNNING) | |
1494 | tport->tp_read_urb_state = TI_READ_URB_STOPPING; | |
1495 | ||
1496 | spin_unlock_irqrestore(&tport->tp_lock, flags); | |
1497 | } | |
1498 | ||
1499 | ||
1500 | static int ti_restart_read(struct ti_port *tport, struct tty_struct *tty) | |
1501 | { | |
1502 | struct urb *urb; | |
1503 | int status = 0; | |
1504 | unsigned long flags; | |
1505 | ||
1506 | spin_lock_irqsave(&tport->tp_lock, flags); | |
1507 | ||
1508 | if (tport->tp_read_urb_state == TI_READ_URB_STOPPED) { | |
944dc184 | 1509 | tport->tp_read_urb_state = TI_READ_URB_RUNNING; |
1da177e4 | 1510 | urb = tport->tp_port->read_urb; |
944dc184 | 1511 | spin_unlock_irqrestore(&tport->tp_lock, flags); |
1da177e4 | 1512 | urb->context = tport; |
1da177e4 | 1513 | status = usb_submit_urb(urb, GFP_KERNEL); |
944dc184 ON |
1514 | } else { |
1515 | tport->tp_read_urb_state = TI_READ_URB_RUNNING; | |
1516 | spin_unlock_irqrestore(&tport->tp_lock, flags); | |
1da177e4 | 1517 | } |
1da177e4 LT |
1518 | |
1519 | return status; | |
1520 | } | |
1521 | ||
1522 | ||
1523 | static int ti_command_out_sync(struct ti_device *tdev, __u8 command, | |
1524 | __u16 moduleid, __u16 value, __u8 *data, int size) | |
1525 | { | |
1526 | int status; | |
1527 | ||
1528 | status = usb_control_msg(tdev->td_serial->dev, | |
1529 | usb_sndctrlpipe(tdev->td_serial->dev, 0), command, | |
1530 | (USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_OUT), | |
1531 | value, moduleid, data, size, 1000); | |
1532 | ||
1533 | if (status == size) | |
1534 | status = 0; | |
1535 | ||
1536 | if (status > 0) | |
1537 | status = -ECOMM; | |
1538 | ||
1539 | return status; | |
1540 | } | |
1541 | ||
1542 | ||
1543 | static int ti_command_in_sync(struct ti_device *tdev, __u8 command, | |
1544 | __u16 moduleid, __u16 value, __u8 *data, int size) | |
1545 | { | |
1546 | int status; | |
1547 | ||
1548 | status = usb_control_msg(tdev->td_serial->dev, | |
1549 | usb_rcvctrlpipe(tdev->td_serial->dev, 0), command, | |
1550 | (USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_IN), | |
1551 | value, moduleid, data, size, 1000); | |
1552 | ||
1553 | if (status == size) | |
1554 | status = 0; | |
1555 | ||
1556 | if (status > 0) | |
1557 | status = -ECOMM; | |
1558 | ||
1559 | return status; | |
1560 | } | |
1561 | ||
1562 | ||
1563 | static int ti_write_byte(struct ti_device *tdev, unsigned long addr, | |
1564 | __u8 mask, __u8 byte) | |
1565 | { | |
1566 | int status; | |
1567 | unsigned int size; | |
1568 | struct ti_write_data_bytes *data; | |
1569 | struct device *dev = &tdev->td_serial->dev->dev; | |
1570 | ||
a30fa793 AC |
1571 | dbg("%s - addr 0x%08lX, mask 0x%02X, byte 0x%02X", |
1572 | __func__, addr, mask, byte); | |
1da177e4 LT |
1573 | |
1574 | size = sizeof(struct ti_write_data_bytes) + 2; | |
1575 | data = kmalloc(size, GFP_KERNEL); | |
1576 | if (!data) { | |
441b62c1 | 1577 | dev_err(dev, "%s - out of memory\n", __func__); |
1da177e4 LT |
1578 | return -ENOMEM; |
1579 | } | |
1580 | ||
1581 | data->bAddrType = TI_RW_DATA_ADDR_XDATA; | |
1582 | data->bDataType = TI_RW_DATA_BYTE; | |
1583 | data->bDataCounter = 1; | |
1584 | data->wBaseAddrHi = cpu_to_be16(addr>>16); | |
1585 | data->wBaseAddrLo = cpu_to_be16(addr); | |
1586 | data->bData[0] = mask; | |
1587 | data->bData[1] = byte; | |
1588 | ||
1589 | status = ti_command_out_sync(tdev, TI_WRITE_DATA, TI_RAM_PORT, 0, | |
1590 | (__u8 *)data, size); | |
1591 | ||
1592 | if (status < 0) | |
441b62c1 | 1593 | dev_err(dev, "%s - failed, %d\n", __func__, status); |
1da177e4 LT |
1594 | |
1595 | kfree(data); | |
1596 | ||
1597 | return status; | |
1598 | } | |
1599 | ||
95da310e AC |
1600 | static int ti_do_download(struct usb_device *dev, int pipe, |
1601 | u8 *buffer, int size) | |
1da177e4 | 1602 | { |
1da177e4 | 1603 | int pos; |
95da310e | 1604 | u8 cs = 0; |
1da177e4 | 1605 | int done; |
1da177e4 | 1606 | struct ti_firmware_header *header; |
87ea8c88 | 1607 | int status = 0; |
95da310e | 1608 | int len; |
a30fa793 AC |
1609 | |
1610 | for (pos = sizeof(struct ti_firmware_header); pos < size; pos++) | |
1da177e4 LT |
1611 | cs = (__u8)(cs + buffer[pos]); |
1612 | ||
1613 | header = (struct ti_firmware_header *)buffer; | |
a30fa793 | 1614 | header->wLength = cpu_to_le16((__u16)(size |
95da310e | 1615 | - sizeof(struct ti_firmware_header))); |
1da177e4 LT |
1616 | header->bCheckSum = cs; |
1617 | ||
441b62c1 | 1618 | dbg("%s - downloading firmware", __func__); |
95da310e AC |
1619 | for (pos = 0; pos < size; pos += done) { |
1620 | len = min(size - pos, TI_DOWNLOAD_MAX_PACKET_SIZE); | |
1621 | status = usb_bulk_msg(dev, pipe, buffer + pos, len, | |
1622 | &done, 1000); | |
1da177e4 LT |
1623 | if (status) |
1624 | break; | |
1625 | } | |
95da310e AC |
1626 | return status; |
1627 | } | |
1da177e4 | 1628 | |
05a3d905 | 1629 | static int ti_download_firmware(struct ti_device *tdev) |
95da310e | 1630 | { |
05a3d905 | 1631 | int status; |
95da310e AC |
1632 | int buffer_size; |
1633 | __u8 *buffer; | |
1634 | struct usb_device *dev = tdev->td_serial->dev; | |
1635 | unsigned int pipe = usb_sndbulkpipe(dev, | |
1636 | tdev->td_serial->port[0]->bulk_out_endpointAddress); | |
1637 | const struct firmware *fw_p; | |
1638 | char buf[32]; | |
1da177e4 | 1639 | |
05a3d905 CA |
1640 | /* try ID specific firmware first, then try generic firmware */ |
1641 | sprintf(buf, "ti_usb-v%04x-p%04x.fw", dev->descriptor.idVendor, | |
1642 | dev->descriptor.idProduct); | |
72b27a07 AR |
1643 | status = request_firmware(&fw_p, buf, &dev->dev); |
1644 | ||
1645 | if (status != 0) { | |
cb7a7c6a CA |
1646 | buf[0] = '\0'; |
1647 | if (dev->descriptor.idVendor == MTS_VENDOR_ID) { | |
1648 | switch (dev->descriptor.idProduct) { | |
1649 | case MTS_CDMA_PRODUCT_ID: | |
1650 | strcpy(buf, "mts_cdma.fw"); | |
1651 | break; | |
1652 | case MTS_GSM_PRODUCT_ID: | |
1653 | strcpy(buf, "mts_gsm.fw"); | |
1654 | break; | |
1655 | case MTS_EDGE_PRODUCT_ID: | |
1656 | strcpy(buf, "mts_edge.fw"); | |
1657 | break; | |
cdc04834 AM |
1658 | case MTS_MT9234MU_PRODUCT_ID: |
1659 | strcpy(buf, "mts_mt9234mu.fw"); | |
1660 | break; | |
1661 | case MTS_MT9234ZBA_PRODUCT_ID: | |
1662 | strcpy(buf, "mts_mt9234zba.fw"); | |
1663 | break; | |
1664 | case MTS_MT9234ZBAOLD_PRODUCT_ID: | |
1665 | strcpy(buf, "mts_mt9234zba.fw"); | |
1666 | break; } | |
cb7a7c6a CA |
1667 | } |
1668 | if (buf[0] == '\0') { | |
1669 | if (tdev->td_is_3410) | |
1670 | strcpy(buf, "ti_3410.fw"); | |
1671 | else | |
1672 | strcpy(buf, "ti_5052.fw"); | |
1673 | } | |
05a3d905 CA |
1674 | status = request_firmware(&fw_p, buf, &dev->dev); |
1675 | } | |
1676 | if (status) { | |
95da310e AC |
1677 | dev_err(&dev->dev, "%s - firmware not found\n", __func__); |
1678 | return -ENOENT; | |
1679 | } | |
1680 | if (fw_p->size > TI_FIRMWARE_BUF_SIZE) { | |
75181f38 | 1681 | dev_err(&dev->dev, "%s - firmware too large %zu\n", __func__, fw_p->size); |
357f45db | 1682 | release_firmware(fw_p); |
95da310e AC |
1683 | return -ENOENT; |
1684 | } | |
1685 | ||
1686 | buffer_size = TI_FIRMWARE_BUF_SIZE + sizeof(struct ti_firmware_header); | |
1687 | buffer = kmalloc(buffer_size, GFP_KERNEL); | |
1688 | if (buffer) { | |
1689 | memcpy(buffer, fw_p->data, fw_p->size); | |
1690 | memset(buffer + fw_p->size, 0xff, buffer_size - fw_p->size); | |
2bcbe4c1 | 1691 | status = ti_do_download(dev, pipe, buffer, fw_p->size); |
95da310e | 1692 | kfree(buffer); |
05a3d905 | 1693 | } else { |
cdc04834 | 1694 | dbg("%s ENOMEM\n", __func__); |
05a3d905 | 1695 | status = -ENOMEM; |
95da310e AC |
1696 | } |
1697 | release_firmware(fw_p); | |
1da177e4 | 1698 | if (status) { |
a30fa793 AC |
1699 | dev_err(&dev->dev, "%s - error downloading firmware, %d\n", |
1700 | __func__, status); | |
1da177e4 LT |
1701 | return status; |
1702 | } | |
1703 | ||
441b62c1 | 1704 | dbg("%s - download successful", __func__); |
1da177e4 LT |
1705 | |
1706 | return 0; | |
1707 | } |