Commit | Line | Data |
---|---|---|
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 | ||
1da177e4 LT |
43 | #define TI_DRIVER_AUTHOR "Al Borchers <alborchers@steinerpoint.com>" |
44 | #define TI_DRIVER_DESC "TI USB 3410/5052 Serial Driver" | |
45 | ||
46 | #define TI_FIRMWARE_BUF_SIZE 16284 | |
47 | ||
1da177e4 LT |
48 | #define TI_TRANSFER_TIMEOUT 2 |
49 | ||
1da177e4 LT |
50 | #define TI_DEFAULT_CLOSING_WAIT 4000 /* in .01 secs */ |
51 | ||
52 | /* supported setserial flags */ | |
2400a2bf | 53 | #define TI_SET_SERIAL_FLAGS 0 |
1da177e4 LT |
54 | |
55 | /* read urb states */ | |
56 | #define TI_READ_URB_RUNNING 0 | |
57 | #define TI_READ_URB_STOPPING 1 | |
58 | #define TI_READ_URB_STOPPED 2 | |
59 | ||
60 | #define TI_EXTRA_VID_PID_COUNT 5 | |
61 | ||
62 | ||
63 | /* Structures */ | |
64 | ||
65 | struct ti_port { | |
66 | int tp_is_open; | |
67 | __u8 tp_msr; | |
1da177e4 LT |
68 | __u8 tp_shadow_mcr; |
69 | __u8 tp_uart_mode; /* 232 or 485 modes */ | |
70 | unsigned int tp_uart_base_addr; | |
71 | int tp_flags; | |
1da177e4 LT |
72 | struct ti_device *tp_tdev; |
73 | struct usb_serial_port *tp_port; | |
74 | spinlock_t tp_lock; | |
75 | int tp_read_urb_state; | |
76 | int tp_write_urb_in_use; | |
1da177e4 LT |
77 | }; |
78 | ||
79 | struct ti_device { | |
9da0068a | 80 | struct mutex td_open_close_lock; |
1da177e4 LT |
81 | int td_open_port_count; |
82 | struct usb_serial *td_serial; | |
83 | int td_is_3410; | |
84 | int td_urb_error; | |
85 | }; | |
86 | ||
87 | ||
88 | /* Function Declarations */ | |
89 | ||
90 | static int ti_startup(struct usb_serial *serial); | |
f9c99bb8 | 91 | static void ti_release(struct usb_serial *serial); |
51ef847d JH |
92 | static int ti_port_probe(struct usb_serial_port *port); |
93 | static int ti_port_remove(struct usb_serial_port *port); | |
a509a7e4 | 94 | static int ti_open(struct tty_struct *tty, struct usb_serial_port *port); |
335f8514 | 95 | static void ti_close(struct usb_serial_port *port); |
95da310e | 96 | static int ti_write(struct tty_struct *tty, struct usb_serial_port *port, |
a30fa793 | 97 | const unsigned char *data, int count); |
95da310e AC |
98 | static int ti_write_room(struct tty_struct *tty); |
99 | static int ti_chars_in_buffer(struct tty_struct *tty); | |
ff93b19e | 100 | static bool ti_tx_empty(struct usb_serial_port *port); |
95da310e AC |
101 | static void ti_throttle(struct tty_struct *tty); |
102 | static void ti_unthrottle(struct tty_struct *tty); | |
00a0d0d6 | 103 | static int ti_ioctl(struct tty_struct *tty, |
a30fa793 AC |
104 | unsigned int cmd, unsigned long arg); |
105 | static void ti_set_termios(struct tty_struct *tty, | |
106 | struct usb_serial_port *port, struct ktermios *old_termios); | |
60b33c13 | 107 | static int ti_tiocmget(struct tty_struct *tty); |
20b9d177 | 108 | static int ti_tiocmset(struct tty_struct *tty, |
a30fa793 | 109 | unsigned int set, unsigned int clear); |
95da310e | 110 | static void ti_break(struct tty_struct *tty, int break_state); |
7d12e780 DH |
111 | static void ti_interrupt_callback(struct urb *urb); |
112 | static void ti_bulk_in_callback(struct urb *urb); | |
113 | static void ti_bulk_out_callback(struct urb *urb); | |
1da177e4 | 114 | |
2e124b4a JS |
115 | static void ti_recv(struct usb_serial_port *port, unsigned char *data, |
116 | int length); | |
1da177e4 LT |
117 | static void ti_send(struct ti_port *tport); |
118 | static int ti_set_mcr(struct ti_port *tport, unsigned int mcr); | |
b5784f7d | 119 | static int ti_get_lsr(struct ti_port *tport, u8 *lsr); |
1da177e4 LT |
120 | static int ti_get_serial_info(struct ti_port *tport, |
121 | struct serial_struct __user *ret_arg); | |
4a90f09b | 122 | static int ti_set_serial_info(struct tty_struct *tty, struct ti_port *tport, |
1da177e4 LT |
123 | struct serial_struct __user *new_arg); |
124 | static void ti_handle_new_msr(struct ti_port *tport, __u8 msr); | |
125 | ||
1da177e4 LT |
126 | static void ti_stop_read(struct ti_port *tport, struct tty_struct *tty); |
127 | static int ti_restart_read(struct ti_port *tport, struct tty_struct *tty); | |
128 | ||
129 | static int ti_command_out_sync(struct ti_device *tdev, __u8 command, | |
130 | __u16 moduleid, __u16 value, __u8 *data, int size); | |
131 | static int ti_command_in_sync(struct ti_device *tdev, __u8 command, | |
132 | __u16 moduleid, __u16 value, __u8 *data, int size); | |
133 | ||
d53839cf GKH |
134 | static int ti_write_byte(struct usb_serial_port *port, struct ti_device *tdev, |
135 | unsigned long addr, __u8 mask, __u8 byte); | |
1da177e4 | 136 | |
05a3d905 | 137 | static int ti_download_firmware(struct ti_device *tdev); |
1da177e4 | 138 | |
1da177e4 LT |
139 | |
140 | /* Data */ | |
141 | ||
142 | /* module parameters */ | |
1da177e4 | 143 | static int closing_wait = TI_DEFAULT_CLOSING_WAIT; |
1da177e4 LT |
144 | |
145 | /* supported devices */ | |
d7ece651 | 146 | static struct usb_device_id ti_id_table_3410[] = { |
1da177e4 | 147 | { USB_DEVICE(TI_VENDOR_ID, TI_3410_PRODUCT_ID) }, |
1f54a6ae | 148 | { USB_DEVICE(TI_VENDOR_ID, TI_3410_EZ430_ID) }, |
cb7a7c6a CA |
149 | { USB_DEVICE(MTS_VENDOR_ID, MTS_GSM_NO_FW_PRODUCT_ID) }, |
150 | { USB_DEVICE(MTS_VENDOR_ID, MTS_CDMA_NO_FW_PRODUCT_ID) }, | |
151 | { USB_DEVICE(MTS_VENDOR_ID, MTS_CDMA_PRODUCT_ID) }, | |
152 | { USB_DEVICE(MTS_VENDOR_ID, MTS_GSM_PRODUCT_ID) }, | |
153 | { USB_DEVICE(MTS_VENDOR_ID, MTS_EDGE_PRODUCT_ID) }, | |
cdc04834 AM |
154 | { USB_DEVICE(MTS_VENDOR_ID, MTS_MT9234MU_PRODUCT_ID) }, |
155 | { USB_DEVICE(MTS_VENDOR_ID, MTS_MT9234ZBA_PRODUCT_ID) }, | |
156 | { USB_DEVICE(MTS_VENDOR_ID, MTS_MT9234ZBAOLD_PRODUCT_ID) }, | |
1a1fab51 | 157 | { USB_DEVICE(IBM_VENDOR_ID, IBM_4543_PRODUCT_ID) }, |
97dcf041 ON |
158 | { USB_DEVICE(IBM_VENDOR_ID, IBM_454B_PRODUCT_ID) }, |
159 | { USB_DEVICE(IBM_VENDOR_ID, IBM_454C_PRODUCT_ID) }, | |
35a2fbc9 AH |
160 | { USB_DEVICE(ABBOTT_VENDOR_ID, ABBOTT_STEREO_PLUG_ID) }, |
161 | { USB_DEVICE(ABBOTT_VENDOR_ID, ABBOTT_STRIP_PORT_ID) }, | |
975dc33b | 162 | { USB_DEVICE(TI_VENDOR_ID, FRI2_PRODUCT_ID) }, |
d7ece651 | 163 | { } /* terminator */ |
1da177e4 LT |
164 | }; |
165 | ||
d7ece651 | 166 | static struct usb_device_id ti_id_table_5052[] = { |
1da177e4 LT |
167 | { USB_DEVICE(TI_VENDOR_ID, TI_5052_BOOT_PRODUCT_ID) }, |
168 | { USB_DEVICE(TI_VENDOR_ID, TI_5152_BOOT_PRODUCT_ID) }, | |
169 | { USB_DEVICE(TI_VENDOR_ID, TI_5052_EEPROM_PRODUCT_ID) }, | |
170 | { USB_DEVICE(TI_VENDOR_ID, TI_5052_FIRMWARE_PRODUCT_ID) }, | |
d7ece651 | 171 | { } /* terminator */ |
1da177e4 LT |
172 | }; |
173 | ||
d7ece651 | 174 | static struct usb_device_id ti_id_table_combined[] = { |
1da177e4 | 175 | { USB_DEVICE(TI_VENDOR_ID, TI_3410_PRODUCT_ID) }, |
1f54a6ae | 176 | { USB_DEVICE(TI_VENDOR_ID, TI_3410_EZ430_ID) }, |
cb7a7c6a CA |
177 | { USB_DEVICE(MTS_VENDOR_ID, MTS_GSM_NO_FW_PRODUCT_ID) }, |
178 | { USB_DEVICE(MTS_VENDOR_ID, MTS_CDMA_NO_FW_PRODUCT_ID) }, | |
179 | { USB_DEVICE(MTS_VENDOR_ID, MTS_CDMA_PRODUCT_ID) }, | |
180 | { USB_DEVICE(MTS_VENDOR_ID, MTS_GSM_PRODUCT_ID) }, | |
181 | { USB_DEVICE(MTS_VENDOR_ID, MTS_EDGE_PRODUCT_ID) }, | |
cdc04834 AM |
182 | { USB_DEVICE(MTS_VENDOR_ID, MTS_MT9234MU_PRODUCT_ID) }, |
183 | { USB_DEVICE(MTS_VENDOR_ID, MTS_MT9234ZBA_PRODUCT_ID) }, | |
184 | { USB_DEVICE(MTS_VENDOR_ID, MTS_MT9234ZBAOLD_PRODUCT_ID) }, | |
1da177e4 LT |
185 | { USB_DEVICE(TI_VENDOR_ID, TI_5052_BOOT_PRODUCT_ID) }, |
186 | { USB_DEVICE(TI_VENDOR_ID, TI_5152_BOOT_PRODUCT_ID) }, | |
187 | { USB_DEVICE(TI_VENDOR_ID, TI_5052_EEPROM_PRODUCT_ID) }, | |
188 | { USB_DEVICE(TI_VENDOR_ID, TI_5052_FIRMWARE_PRODUCT_ID) }, | |
1a1fab51 | 189 | { USB_DEVICE(IBM_VENDOR_ID, IBM_4543_PRODUCT_ID) }, |
97dcf041 ON |
190 | { USB_DEVICE(IBM_VENDOR_ID, IBM_454B_PRODUCT_ID) }, |
191 | { USB_DEVICE(IBM_VENDOR_ID, IBM_454C_PRODUCT_ID) }, | |
7fd25702 | 192 | { USB_DEVICE(ABBOTT_VENDOR_ID, ABBOTT_PRODUCT_ID) }, |
c9d09dc7 | 193 | { USB_DEVICE(ABBOTT_VENDOR_ID, ABBOTT_STRIP_PORT_ID) }, |
975dc33b | 194 | { USB_DEVICE(TI_VENDOR_ID, FRI2_PRODUCT_ID) }, |
d7ece651 | 195 | { } /* terminator */ |
1da177e4 LT |
196 | }; |
197 | ||
ea65370d | 198 | static struct usb_serial_driver ti_1port_device = { |
18fcac35 | 199 | .driver = { |
269bda1c GKH |
200 | .owner = THIS_MODULE, |
201 | .name = "ti_usb_3410_5052_1", | |
18fcac35 | 202 | }, |
269bda1c | 203 | .description = "TI USB 3410 1 port adapter", |
1da177e4 | 204 | .id_table = ti_id_table_3410, |
1da177e4 LT |
205 | .num_ports = 1, |
206 | .attach = ti_startup, | |
f9c99bb8 | 207 | .release = ti_release, |
51ef847d JH |
208 | .port_probe = ti_port_probe, |
209 | .port_remove = ti_port_remove, | |
1da177e4 LT |
210 | .open = ti_open, |
211 | .close = ti_close, | |
212 | .write = ti_write, | |
213 | .write_room = ti_write_room, | |
214 | .chars_in_buffer = ti_chars_in_buffer, | |
ff93b19e | 215 | .tx_empty = ti_tx_empty, |
1da177e4 LT |
216 | .throttle = ti_throttle, |
217 | .unthrottle = ti_unthrottle, | |
218 | .ioctl = ti_ioctl, | |
219 | .set_termios = ti_set_termios, | |
220 | .tiocmget = ti_tiocmget, | |
221 | .tiocmset = ti_tiocmset, | |
6c75e260 | 222 | .tiocmiwait = usb_serial_generic_tiocmiwait, |
783ca355 | 223 | .get_icount = usb_serial_generic_get_icount, |
1da177e4 LT |
224 | .break_ctl = ti_break, |
225 | .read_int_callback = ti_interrupt_callback, | |
226 | .read_bulk_callback = ti_bulk_in_callback, | |
227 | .write_bulk_callback = ti_bulk_out_callback, | |
228 | }; | |
229 | ||
ea65370d | 230 | static struct usb_serial_driver ti_2port_device = { |
18fcac35 | 231 | .driver = { |
269bda1c GKH |
232 | .owner = THIS_MODULE, |
233 | .name = "ti_usb_3410_5052_2", | |
18fcac35 | 234 | }, |
269bda1c | 235 | .description = "TI USB 5052 2 port adapter", |
1da177e4 | 236 | .id_table = ti_id_table_5052, |
1da177e4 LT |
237 | .num_ports = 2, |
238 | .attach = ti_startup, | |
f9c99bb8 | 239 | .release = ti_release, |
51ef847d JH |
240 | .port_probe = ti_port_probe, |
241 | .port_remove = ti_port_remove, | |
1da177e4 LT |
242 | .open = ti_open, |
243 | .close = ti_close, | |
244 | .write = ti_write, | |
245 | .write_room = ti_write_room, | |
246 | .chars_in_buffer = ti_chars_in_buffer, | |
ff93b19e | 247 | .tx_empty = ti_tx_empty, |
1da177e4 LT |
248 | .throttle = ti_throttle, |
249 | .unthrottle = ti_unthrottle, | |
250 | .ioctl = ti_ioctl, | |
251 | .set_termios = ti_set_termios, | |
252 | .tiocmget = ti_tiocmget, | |
253 | .tiocmset = ti_tiocmset, | |
6c75e260 | 254 | .tiocmiwait = usb_serial_generic_tiocmiwait, |
783ca355 | 255 | .get_icount = usb_serial_generic_get_icount, |
1da177e4 LT |
256 | .break_ctl = ti_break, |
257 | .read_int_callback = ti_interrupt_callback, | |
258 | .read_bulk_callback = ti_bulk_in_callback, | |
259 | .write_bulk_callback = ti_bulk_out_callback, | |
260 | }; | |
261 | ||
29618e9f AS |
262 | static struct usb_serial_driver * const serial_drivers[] = { |
263 | &ti_1port_device, &ti_2port_device, NULL | |
264 | }; | |
1da177e4 LT |
265 | |
266 | /* Module */ | |
267 | ||
268 | MODULE_AUTHOR(TI_DRIVER_AUTHOR); | |
269 | MODULE_DESCRIPTION(TI_DRIVER_DESC); | |
1da177e4 LT |
270 | MODULE_LICENSE("GPL"); |
271 | ||
5f24e2d6 DW |
272 | MODULE_FIRMWARE("ti_3410.fw"); |
273 | MODULE_FIRMWARE("ti_5052.fw"); | |
7df52316 CA |
274 | MODULE_FIRMWARE("mts_cdma.fw"); |
275 | MODULE_FIRMWARE("mts_gsm.fw"); | |
276 | MODULE_FIRMWARE("mts_edge.fw"); | |
cdc04834 AM |
277 | MODULE_FIRMWARE("mts_mt9234mu.fw"); |
278 | MODULE_FIRMWARE("mts_mt9234zba.fw"); | |
5f24e2d6 | 279 | |
1da177e4 | 280 | module_param(closing_wait, int, S_IRUGO | S_IWUSR); |
a30fa793 AC |
281 | MODULE_PARM_DESC(closing_wait, |
282 | "Maximum wait for data to drain in close, in .01 secs, default is 4000"); | |
1da177e4 | 283 | |
1da177e4 LT |
284 | MODULE_DEVICE_TABLE(usb, ti_id_table_combined); |
285 | ||
d7ece651 | 286 | module_usb_serial_driver(serial_drivers, ti_id_table_combined); |
1da177e4 LT |
287 | |
288 | /* Functions */ | |
289 | ||
1da177e4 LT |
290 | static int ti_startup(struct usb_serial *serial) |
291 | { | |
292 | struct ti_device *tdev; | |
1da177e4 LT |
293 | struct usb_device *dev = serial->dev; |
294 | int status; | |
1da177e4 | 295 | |
d53839cf GKH |
296 | dev_dbg(&dev->dev, |
297 | "%s - product 0x%4X, num configurations %d, configuration value %d", | |
298 | __func__, le16_to_cpu(dev->descriptor.idProduct), | |
299 | dev->descriptor.bNumConfigurations, | |
300 | dev->actconfig->desc.bConfigurationValue); | |
1da177e4 LT |
301 | |
302 | /* create device structure */ | |
80b6ca48 | 303 | tdev = kzalloc(sizeof(struct ti_device), GFP_KERNEL); |
1da177e4 | 304 | if (tdev == NULL) { |
441b62c1 | 305 | dev_err(&dev->dev, "%s - out of memory\n", __func__); |
1da177e4 LT |
306 | return -ENOMEM; |
307 | } | |
9da0068a | 308 | mutex_init(&tdev->td_open_close_lock); |
1da177e4 LT |
309 | tdev->td_serial = serial; |
310 | usb_set_serial_data(serial, tdev); | |
311 | ||
312 | /* determine device type */ | |
1fad5642 | 313 | if (serial->type == &ti_1port_device) |
1da177e4 | 314 | tdev->td_is_3410 = 1; |
d53839cf GKH |
315 | dev_dbg(&dev->dev, "%s - device type is %s\n", __func__, |
316 | tdev->td_is_3410 ? "3410" : "5052"); | |
1da177e4 LT |
317 | |
318 | /* if we have only 1 configuration, download firmware */ | |
319 | if (dev->descriptor.bNumConfigurations == 1) { | |
72b27a07 AR |
320 | status = ti_download_firmware(tdev); |
321 | ||
322 | if (status != 0) | |
1da177e4 LT |
323 | goto free_tdev; |
324 | ||
325 | /* 3410 must be reset, 5052 resets itself */ | |
326 | if (tdev->td_is_3410) { | |
327 | msleep_interruptible(100); | |
328 | usb_reset_device(dev); | |
329 | } | |
330 | ||
331 | status = -ENODEV; | |
332 | goto free_tdev; | |
a30fa793 | 333 | } |
1da177e4 | 334 | |
413ba6fb | 335 | /* the second configuration must be set */ |
1da177e4 | 336 | if (dev->actconfig->desc.bConfigurationValue == TI_BOOT_CONFIG) { |
413ba6fb ON |
337 | status = usb_driver_set_configuration(dev, TI_ACTIVE_CONFIG); |
338 | status = status ? status : -ENODEV; | |
1da177e4 LT |
339 | goto free_tdev; |
340 | } | |
341 | ||
1da177e4 LT |
342 | return 0; |
343 | ||
1da177e4 LT |
344 | free_tdev: |
345 | kfree(tdev); | |
346 | usb_set_serial_data(serial, NULL); | |
347 | return status; | |
348 | } | |
349 | ||
350 | ||
f9c99bb8 | 351 | static void ti_release(struct usb_serial *serial) |
1da177e4 | 352 | { |
1da177e4 | 353 | struct ti_device *tdev = usb_get_serial_data(serial); |
51ef847d JH |
354 | |
355 | kfree(tdev); | |
356 | } | |
357 | ||
358 | static int ti_port_probe(struct usb_serial_port *port) | |
359 | { | |
1da177e4 LT |
360 | struct ti_port *tport; |
361 | ||
51ef847d JH |
362 | tport = kzalloc(sizeof(*tport), GFP_KERNEL); |
363 | if (!tport) | |
364 | return -ENOMEM; | |
365 | ||
366 | spin_lock_init(&tport->tp_lock); | |
367 | if (port == port->serial->port[0]) | |
368 | tport->tp_uart_base_addr = TI_UART1_BASE_ADDR; | |
369 | else | |
370 | tport->tp_uart_base_addr = TI_UART2_BASE_ADDR; | |
f1175daa | 371 | port->port.closing_wait = msecs_to_jiffies(10 * closing_wait); |
51ef847d JH |
372 | tport->tp_port = port; |
373 | tport->tp_tdev = usb_get_serial_data(port->serial); | |
374 | tport->tp_uart_mode = 0; /* default is RS232 */ | |
1da177e4 | 375 | |
51ef847d JH |
376 | usb_set_serial_port_data(port, tport); |
377 | ||
d7be6221 JH |
378 | port->port.drain_delay = 3; |
379 | ||
51ef847d | 380 | return 0; |
1da177e4 LT |
381 | } |
382 | ||
51ef847d JH |
383 | static int ti_port_remove(struct usb_serial_port *port) |
384 | { | |
385 | struct ti_port *tport; | |
386 | ||
387 | tport = usb_get_serial_port_data(port); | |
51ef847d JH |
388 | kfree(tport); |
389 | ||
390 | return 0; | |
391 | } | |
1da177e4 | 392 | |
a509a7e4 | 393 | static int ti_open(struct tty_struct *tty, struct usb_serial_port *port) |
1da177e4 LT |
394 | { |
395 | struct ti_port *tport = usb_get_serial_port_data(port); | |
396 | struct ti_device *tdev; | |
397 | struct usb_device *dev; | |
398 | struct urb *urb; | |
399 | int port_number; | |
400 | int status; | |
a30fa793 AC |
401 | __u16 open_settings = (__u8)(TI_PIPE_MODE_CONTINOUS | |
402 | TI_PIPE_TIMEOUT_ENABLE | | |
1da177e4 LT |
403 | (TI_TRANSFER_TIMEOUT << 2)); |
404 | ||
1da177e4 LT |
405 | if (tport == NULL) |
406 | return -ENODEV; | |
407 | ||
408 | dev = port->serial->dev; | |
409 | tdev = tport->tp_tdev; | |
410 | ||
411 | /* only one open on any port on a device at a time */ | |
9da0068a | 412 | if (mutex_lock_interruptible(&tdev->td_open_close_lock)) |
1da177e4 LT |
413 | return -ERESTARTSYS; |
414 | ||
1143832e | 415 | port_number = port->port_number; |
1da177e4 | 416 | |
1da177e4 LT |
417 | tport->tp_msr = 0; |
418 | tport->tp_shadow_mcr |= (TI_MCR_RTS | TI_MCR_DTR); | |
419 | ||
420 | /* start interrupt urb the first time a port is opened on this device */ | |
421 | if (tdev->td_open_port_count == 0) { | |
d53839cf | 422 | dev_dbg(&port->dev, "%s - start interrupt in urb\n", __func__); |
1da177e4 LT |
423 | urb = tdev->td_serial->port[0]->interrupt_in_urb; |
424 | if (!urb) { | |
d53839cf | 425 | dev_err(&port->dev, "%s - no interrupt urb\n", __func__); |
1da177e4 | 426 | status = -EINVAL; |
9da0068a | 427 | goto release_lock; |
1da177e4 | 428 | } |
1da177e4 | 429 | urb->context = tdev; |
1da177e4 LT |
430 | status = usb_submit_urb(urb, GFP_KERNEL); |
431 | if (status) { | |
d53839cf | 432 | dev_err(&port->dev, "%s - submit interrupt urb failed, %d\n", __func__, status); |
9da0068a | 433 | goto release_lock; |
1da177e4 LT |
434 | } |
435 | } | |
436 | ||
95da310e | 437 | if (tty) |
adc8d746 | 438 | ti_set_termios(tty, port, &tty->termios); |
1da177e4 | 439 | |
d53839cf | 440 | dev_dbg(&port->dev, "%s - sending TI_OPEN_PORT\n", __func__); |
1da177e4 LT |
441 | status = ti_command_out_sync(tdev, TI_OPEN_PORT, |
442 | (__u8)(TI_UART1_PORT + port_number), open_settings, NULL, 0); | |
443 | if (status) { | |
a30fa793 | 444 | dev_err(&port->dev, "%s - cannot send open command, %d\n", |
d53839cf | 445 | __func__, status); |
1da177e4 LT |
446 | goto unlink_int_urb; |
447 | } | |
448 | ||
d53839cf | 449 | dev_dbg(&port->dev, "%s - sending TI_START_PORT\n", __func__); |
1da177e4 LT |
450 | status = ti_command_out_sync(tdev, TI_START_PORT, |
451 | (__u8)(TI_UART1_PORT + port_number), 0, NULL, 0); | |
452 | if (status) { | |
a30fa793 AC |
453 | dev_err(&port->dev, "%s - cannot send start command, %d\n", |
454 | __func__, status); | |
1da177e4 LT |
455 | goto unlink_int_urb; |
456 | } | |
457 | ||
d53839cf | 458 | dev_dbg(&port->dev, "%s - sending TI_PURGE_PORT\n", __func__); |
1da177e4 LT |
459 | status = ti_command_out_sync(tdev, TI_PURGE_PORT, |
460 | (__u8)(TI_UART1_PORT + port_number), TI_PURGE_INPUT, NULL, 0); | |
461 | if (status) { | |
a30fa793 AC |
462 | dev_err(&port->dev, "%s - cannot clear input buffers, %d\n", |
463 | __func__, status); | |
1da177e4 LT |
464 | goto unlink_int_urb; |
465 | } | |
466 | status = ti_command_out_sync(tdev, TI_PURGE_PORT, | |
467 | (__u8)(TI_UART1_PORT + port_number), TI_PURGE_OUTPUT, NULL, 0); | |
468 | if (status) { | |
a30fa793 AC |
469 | dev_err(&port->dev, "%s - cannot clear output buffers, %d\n", |
470 | __func__, status); | |
1da177e4 LT |
471 | goto unlink_int_urb; |
472 | } | |
473 | ||
474 | /* reset the data toggle on the bulk endpoints to work around bug in | |
475 | * host controllers where things get out of sync some times */ | |
476 | usb_clear_halt(dev, port->write_urb->pipe); | |
477 | usb_clear_halt(dev, port->read_urb->pipe); | |
478 | ||
95da310e | 479 | if (tty) |
adc8d746 | 480 | ti_set_termios(tty, port, &tty->termios); |
1da177e4 | 481 | |
d53839cf | 482 | dev_dbg(&port->dev, "%s - sending TI_OPEN_PORT (2)\n", __func__); |
1da177e4 LT |
483 | status = ti_command_out_sync(tdev, TI_OPEN_PORT, |
484 | (__u8)(TI_UART1_PORT + port_number), open_settings, NULL, 0); | |
485 | if (status) { | |
a30fa793 AC |
486 | dev_err(&port->dev, "%s - cannot send open command (2), %d\n", |
487 | __func__, status); | |
1da177e4 LT |
488 | goto unlink_int_urb; |
489 | } | |
490 | ||
d53839cf | 491 | dev_dbg(&port->dev, "%s - sending TI_START_PORT (2)\n", __func__); |
1da177e4 LT |
492 | status = ti_command_out_sync(tdev, TI_START_PORT, |
493 | (__u8)(TI_UART1_PORT + port_number), 0, NULL, 0); | |
494 | if (status) { | |
a30fa793 AC |
495 | dev_err(&port->dev, "%s - cannot send start command (2), %d\n", |
496 | __func__, status); | |
1da177e4 LT |
497 | goto unlink_int_urb; |
498 | } | |
499 | ||
500 | /* start read urb */ | |
d53839cf | 501 | dev_dbg(&port->dev, "%s - start read urb\n", __func__); |
1da177e4 LT |
502 | urb = port->read_urb; |
503 | if (!urb) { | |
441b62c1 | 504 | dev_err(&port->dev, "%s - no read urb\n", __func__); |
1da177e4 LT |
505 | status = -EINVAL; |
506 | goto unlink_int_urb; | |
507 | } | |
508 | tport->tp_read_urb_state = TI_READ_URB_RUNNING; | |
1da177e4 | 509 | urb->context = tport; |
1da177e4 LT |
510 | status = usb_submit_urb(urb, GFP_KERNEL); |
511 | if (status) { | |
a30fa793 AC |
512 | dev_err(&port->dev, "%s - submit read urb failed, %d\n", |
513 | __func__, status); | |
1da177e4 LT |
514 | goto unlink_int_urb; |
515 | } | |
516 | ||
517 | tport->tp_is_open = 1; | |
518 | ++tdev->td_open_port_count; | |
519 | ||
9da0068a | 520 | goto release_lock; |
1da177e4 LT |
521 | |
522 | unlink_int_urb: | |
523 | if (tdev->td_open_port_count == 0) | |
524 | usb_kill_urb(port->serial->port[0]->interrupt_in_urb); | |
9da0068a MK |
525 | release_lock: |
526 | mutex_unlock(&tdev->td_open_close_lock); | |
d53839cf | 527 | dev_dbg(&port->dev, "%s - exit %d\n", __func__, status); |
1da177e4 LT |
528 | return status; |
529 | } | |
530 | ||
531 | ||
335f8514 | 532 | static void ti_close(struct usb_serial_port *port) |
1da177e4 LT |
533 | { |
534 | struct ti_device *tdev; | |
535 | struct ti_port *tport; | |
536 | int port_number; | |
537 | int status; | |
9da0068a | 538 | int do_unlock; |
113ec31e | 539 | unsigned long flags; |
1da177e4 | 540 | |
1da177e4 LT |
541 | tdev = usb_get_serial_data(port->serial); |
542 | tport = usb_get_serial_port_data(port); | |
543 | if (tdev == NULL || tport == NULL) | |
544 | return; | |
545 | ||
546 | tport->tp_is_open = 0; | |
547 | ||
1da177e4 LT |
548 | usb_kill_urb(port->read_urb); |
549 | usb_kill_urb(port->write_urb); | |
550 | tport->tp_write_urb_in_use = 0; | |
113ec31e | 551 | spin_lock_irqsave(&tport->tp_lock, flags); |
cd1e098b | 552 | kfifo_reset_out(&port->write_fifo); |
113ec31e | 553 | spin_unlock_irqrestore(&tport->tp_lock, flags); |
1da177e4 | 554 | |
1143832e | 555 | port_number = port->port_number; |
1da177e4 | 556 | |
d53839cf | 557 | dev_dbg(&port->dev, "%s - sending TI_CLOSE_PORT\n", __func__); |
1da177e4 LT |
558 | status = ti_command_out_sync(tdev, TI_CLOSE_PORT, |
559 | (__u8)(TI_UART1_PORT + port_number), 0, NULL, 0); | |
560 | if (status) | |
a30fa793 AC |
561 | dev_err(&port->dev, |
562 | "%s - cannot send close port command, %d\n" | |
563 | , __func__, status); | |
1da177e4 | 564 | |
9da0068a MK |
565 | /* if mutex_lock is interrupted, continue anyway */ |
566 | do_unlock = !mutex_lock_interruptible(&tdev->td_open_close_lock); | |
1da177e4 LT |
567 | --tport->tp_tdev->td_open_port_count; |
568 | if (tport->tp_tdev->td_open_port_count <= 0) { | |
569 | /* last port is closed, shut down interrupt urb */ | |
570 | usb_kill_urb(port->serial->port[0]->interrupt_in_urb); | |
571 | tport->tp_tdev->td_open_port_count = 0; | |
572 | } | |
9da0068a MK |
573 | if (do_unlock) |
574 | mutex_unlock(&tdev->td_open_close_lock); | |
1da177e4 LT |
575 | } |
576 | ||
577 | ||
95da310e AC |
578 | static int ti_write(struct tty_struct *tty, struct usb_serial_port *port, |
579 | const unsigned char *data, int count) | |
1da177e4 LT |
580 | { |
581 | struct ti_port *tport = usb_get_serial_port_data(port); | |
1da177e4 | 582 | |
1da177e4 | 583 | if (count == 0) { |
d53839cf | 584 | dev_dbg(&port->dev, "%s - write request of 0 bytes\n", __func__); |
1da177e4 LT |
585 | return 0; |
586 | } | |
587 | ||
588 | if (tport == NULL || !tport->tp_is_open) | |
589 | return -ENODEV; | |
590 | ||
cd1e098b | 591 | count = kfifo_in_locked(&port->write_fifo, data, count, |
074ef65a | 592 | &tport->tp_lock); |
1da177e4 LT |
593 | ti_send(tport); |
594 | ||
595 | return count; | |
596 | } | |
597 | ||
598 | ||
95da310e | 599 | static int ti_write_room(struct tty_struct *tty) |
1da177e4 | 600 | { |
95da310e | 601 | struct usb_serial_port *port = tty->driver_data; |
1da177e4 LT |
602 | struct ti_port *tport = usb_get_serial_port_data(port); |
603 | int room = 0; | |
604 | unsigned long flags; | |
605 | ||
1da177e4 | 606 | if (tport == NULL) |
23198fda | 607 | return 0; |
a30fa793 | 608 | |
1da177e4 | 609 | spin_lock_irqsave(&tport->tp_lock, flags); |
cd1e098b | 610 | room = kfifo_avail(&port->write_fifo); |
1da177e4 LT |
611 | spin_unlock_irqrestore(&tport->tp_lock, flags); |
612 | ||
d53839cf | 613 | dev_dbg(&port->dev, "%s - returns %d\n", __func__, room); |
1da177e4 LT |
614 | return room; |
615 | } | |
616 | ||
617 | ||
95da310e | 618 | static int ti_chars_in_buffer(struct tty_struct *tty) |
1da177e4 | 619 | { |
95da310e | 620 | struct usb_serial_port *port = tty->driver_data; |
1da177e4 LT |
621 | struct ti_port *tport = usb_get_serial_port_data(port); |
622 | int chars = 0; | |
623 | unsigned long flags; | |
624 | ||
1da177e4 | 625 | if (tport == NULL) |
23198fda | 626 | return 0; |
1da177e4 LT |
627 | |
628 | spin_lock_irqsave(&tport->tp_lock, flags); | |
cd1e098b | 629 | chars = kfifo_len(&port->write_fifo); |
1da177e4 LT |
630 | spin_unlock_irqrestore(&tport->tp_lock, flags); |
631 | ||
d53839cf | 632 | dev_dbg(&port->dev, "%s - returns %d\n", __func__, chars); |
1da177e4 LT |
633 | return chars; |
634 | } | |
635 | ||
ff93b19e JH |
636 | static bool ti_tx_empty(struct usb_serial_port *port) |
637 | { | |
638 | struct ti_port *tport = usb_get_serial_port_data(port); | |
639 | int ret; | |
640 | u8 lsr; | |
641 | ||
642 | ret = ti_get_lsr(tport, &lsr); | |
643 | if (!ret && !(lsr & TI_LSR_TX_EMPTY)) | |
644 | return false; | |
645 | ||
646 | return true; | |
647 | } | |
1da177e4 | 648 | |
95da310e | 649 | static void ti_throttle(struct tty_struct *tty) |
1da177e4 | 650 | { |
95da310e | 651 | struct usb_serial_port *port = tty->driver_data; |
1da177e4 | 652 | struct ti_port *tport = usb_get_serial_port_data(port); |
1da177e4 | 653 | |
1da177e4 LT |
654 | if (tport == NULL) |
655 | return; | |
656 | ||
1da177e4 LT |
657 | if (I_IXOFF(tty) || C_CRTSCTS(tty)) |
658 | ti_stop_read(tport, tty); | |
659 | ||
660 | } | |
661 | ||
662 | ||
95da310e | 663 | static void ti_unthrottle(struct tty_struct *tty) |
1da177e4 | 664 | { |
95da310e | 665 | struct usb_serial_port *port = tty->driver_data; |
1da177e4 | 666 | struct ti_port *tport = usb_get_serial_port_data(port); |
1da177e4 LT |
667 | int status; |
668 | ||
1da177e4 LT |
669 | if (tport == NULL) |
670 | return; | |
671 | ||
1da177e4 LT |
672 | if (I_IXOFF(tty) || C_CRTSCTS(tty)) { |
673 | status = ti_restart_read(tport, tty); | |
674 | if (status) | |
a30fa793 AC |
675 | dev_err(&port->dev, "%s - cannot restart read, %d\n", |
676 | __func__, status); | |
1da177e4 LT |
677 | } |
678 | } | |
679 | ||
00a0d0d6 | 680 | static int ti_ioctl(struct tty_struct *tty, |
1da177e4 LT |
681 | unsigned int cmd, unsigned long arg) |
682 | { | |
95da310e | 683 | struct usb_serial_port *port = tty->driver_data; |
1da177e4 | 684 | struct ti_port *tport = usb_get_serial_port_data(port); |
1da177e4 | 685 | |
d53839cf | 686 | dev_dbg(&port->dev, "%s - cmd = 0x%04X\n", __func__, cmd); |
1da177e4 LT |
687 | |
688 | if (tport == NULL) | |
689 | return -ENODEV; | |
690 | ||
691 | switch (cmd) { | |
a30fa793 | 692 | case TIOCGSERIAL: |
d53839cf | 693 | dev_dbg(&port->dev, "%s - TIOCGSERIAL\n", __func__); |
a30fa793 AC |
694 | return ti_get_serial_info(tport, |
695 | (struct serial_struct __user *)arg); | |
696 | case TIOCSSERIAL: | |
d53839cf | 697 | dev_dbg(&port->dev, "%s - TIOCSSERIAL\n", __func__); |
4a90f09b AC |
698 | return ti_set_serial_info(tty, tport, |
699 | (struct serial_struct __user *)arg); | |
1da177e4 | 700 | } |
1da177e4 LT |
701 | return -ENOIOCTLCMD; |
702 | } | |
703 | ||
704 | ||
95da310e AC |
705 | static void ti_set_termios(struct tty_struct *tty, |
706 | struct usb_serial_port *port, struct ktermios *old_termios) | |
1da177e4 LT |
707 | { |
708 | struct ti_port *tport = usb_get_serial_port_data(port); | |
1da177e4 | 709 | struct ti_uart_config *config; |
a30fa793 | 710 | tcflag_t cflag, iflag; |
1da177e4 LT |
711 | int baud; |
712 | int status; | |
1143832e | 713 | int port_number = port->port_number; |
1da177e4 LT |
714 | unsigned int mcr; |
715 | ||
adc8d746 AC |
716 | cflag = tty->termios.c_cflag; |
717 | iflag = tty->termios.c_iflag; | |
1da177e4 | 718 | |
d53839cf GKH |
719 | dev_dbg(&port->dev, "%s - cflag %08x, iflag %08x\n", __func__, cflag, iflag); |
720 | dev_dbg(&port->dev, "%s - old clfag %08x, old iflag %08x\n", __func__, | |
721 | old_termios->c_cflag, old_termios->c_iflag); | |
1da177e4 LT |
722 | |
723 | if (tport == NULL) | |
724 | return; | |
725 | ||
726 | config = kmalloc(sizeof(*config), GFP_KERNEL); | |
727 | if (!config) { | |
441b62c1 | 728 | dev_err(&port->dev, "%s - out of memory\n", __func__); |
1da177e4 LT |
729 | return; |
730 | } | |
731 | ||
732 | config->wFlags = 0; | |
733 | ||
734 | /* these flags must be set */ | |
735 | config->wFlags |= TI_UART_ENABLE_MS_INTS; | |
736 | config->wFlags |= TI_UART_ENABLE_AUTO_START_DMA; | |
737 | config->bUartMode = (__u8)(tport->tp_uart_mode); | |
738 | ||
739 | switch (cflag & CSIZE) { | |
a30fa793 AC |
740 | case CS5: |
741 | config->bDataBits = TI_UART_5_DATA_BITS; | |
742 | break; | |
743 | case CS6: | |
744 | config->bDataBits = TI_UART_6_DATA_BITS; | |
745 | break; | |
746 | case CS7: | |
747 | config->bDataBits = TI_UART_7_DATA_BITS; | |
748 | break; | |
749 | default: | |
750 | case CS8: | |
751 | config->bDataBits = TI_UART_8_DATA_BITS; | |
752 | break; | |
1da177e4 LT |
753 | } |
754 | ||
537699ef | 755 | /* CMSPAR isn't supported by this driver */ |
adc8d746 | 756 | tty->termios.c_cflag &= ~CMSPAR; |
537699ef | 757 | |
1da177e4 LT |
758 | if (cflag & PARENB) { |
759 | if (cflag & PARODD) { | |
760 | config->wFlags |= TI_UART_ENABLE_PARITY_CHECKING; | |
761 | config->bParity = TI_UART_ODD_PARITY; | |
762 | } else { | |
763 | config->wFlags |= TI_UART_ENABLE_PARITY_CHECKING; | |
764 | config->bParity = TI_UART_EVEN_PARITY; | |
765 | } | |
766 | } else { | |
767 | config->wFlags &= ~TI_UART_ENABLE_PARITY_CHECKING; | |
a30fa793 | 768 | config->bParity = TI_UART_NO_PARITY; |
1da177e4 LT |
769 | } |
770 | ||
771 | if (cflag & CSTOPB) | |
772 | config->bStopBits = TI_UART_2_STOP_BITS; | |
773 | else | |
774 | config->bStopBits = TI_UART_1_STOP_BITS; | |
775 | ||
776 | if (cflag & CRTSCTS) { | |
777 | /* RTS flow control must be off to drop RTS for baud rate B0 */ | |
778 | if ((cflag & CBAUD) != B0) | |
779 | config->wFlags |= TI_UART_ENABLE_RTS_IN; | |
780 | config->wFlags |= TI_UART_ENABLE_CTS_OUT; | |
781 | } else { | |
782 | tty->hw_stopped = 0; | |
783 | ti_restart_read(tport, tty); | |
784 | } | |
785 | ||
786 | if (I_IXOFF(tty) || I_IXON(tty)) { | |
787 | config->cXon = START_CHAR(tty); | |
788 | config->cXoff = STOP_CHAR(tty); | |
789 | ||
790 | if (I_IXOFF(tty)) | |
791 | config->wFlags |= TI_UART_ENABLE_X_IN; | |
792 | else | |
793 | ti_restart_read(tport, tty); | |
794 | ||
795 | if (I_IXON(tty)) | |
796 | config->wFlags |= TI_UART_ENABLE_X_OUT; | |
797 | } | |
798 | ||
799 | baud = tty_get_baud_rate(tty); | |
537699ef AC |
800 | if (!baud) |
801 | baud = 9600; | |
1da177e4 LT |
802 | if (tport->tp_tdev->td_is_3410) |
803 | config->wBaudRate = (__u16)((923077 + baud/2) / baud); | |
804 | else | |
805 | config->wBaudRate = (__u16)((461538 + baud/2) / baud); | |
806 | ||
537699ef AC |
807 | /* FIXME: Should calculate resulting baud here and report it back */ |
808 | if ((cflag & CBAUD) != B0) | |
809 | tty_encode_baud_rate(tty, baud, baud); | |
810 | ||
d53839cf GKH |
811 | dev_dbg(&port->dev, |
812 | "%s - BaudRate=%d, wBaudRate=%d, wFlags=0x%04X, bDataBits=%d, bParity=%d, bStopBits=%d, cXon=%d, cXoff=%d, bUartMode=%d", | |
813 | __func__, baud, config->wBaudRate, config->wFlags, | |
814 | config->bDataBits, config->bParity, config->bStopBits, | |
815 | config->cXon, config->cXoff, config->bUartMode); | |
1da177e4 LT |
816 | |
817 | cpu_to_be16s(&config->wBaudRate); | |
818 | cpu_to_be16s(&config->wFlags); | |
819 | ||
820 | status = ti_command_out_sync(tport->tp_tdev, TI_SET_CONFIG, | |
821 | (__u8)(TI_UART1_PORT + port_number), 0, (__u8 *)config, | |
822 | sizeof(*config)); | |
823 | if (status) | |
a30fa793 AC |
824 | dev_err(&port->dev, "%s - cannot set config on port %d, %d\n", |
825 | __func__, port_number, status); | |
1da177e4 LT |
826 | |
827 | /* SET_CONFIG asserts RTS and DTR, reset them correctly */ | |
828 | mcr = tport->tp_shadow_mcr; | |
829 | /* if baud rate is B0, clear RTS and DTR */ | |
830 | if ((cflag & CBAUD) == B0) | |
831 | mcr &= ~(TI_MCR_DTR | TI_MCR_RTS); | |
832 | status = ti_set_mcr(tport, mcr); | |
833 | if (status) | |
a30fa793 AC |
834 | dev_err(&port->dev, |
835 | "%s - cannot set modem control on port %d, %d\n", | |
836 | __func__, port_number, status); | |
1da177e4 LT |
837 | |
838 | kfree(config); | |
839 | } | |
840 | ||
841 | ||
60b33c13 | 842 | static int ti_tiocmget(struct tty_struct *tty) |
1da177e4 | 843 | { |
95da310e | 844 | struct usb_serial_port *port = tty->driver_data; |
1da177e4 LT |
845 | struct ti_port *tport = usb_get_serial_port_data(port); |
846 | unsigned int result; | |
847 | unsigned int msr; | |
848 | unsigned int mcr; | |
04ca89d4 | 849 | unsigned long flags; |
1da177e4 | 850 | |
1da177e4 LT |
851 | if (tport == NULL) |
852 | return -ENODEV; | |
853 | ||
04ca89d4 | 854 | spin_lock_irqsave(&tport->tp_lock, flags); |
1da177e4 LT |
855 | msr = tport->tp_msr; |
856 | mcr = tport->tp_shadow_mcr; | |
04ca89d4 | 857 | spin_unlock_irqrestore(&tport->tp_lock, flags); |
1da177e4 LT |
858 | |
859 | result = ((mcr & TI_MCR_DTR) ? TIOCM_DTR : 0) | |
860 | | ((mcr & TI_MCR_RTS) ? TIOCM_RTS : 0) | |
861 | | ((mcr & TI_MCR_LOOP) ? TIOCM_LOOP : 0) | |
862 | | ((msr & TI_MSR_CTS) ? TIOCM_CTS : 0) | |
863 | | ((msr & TI_MSR_CD) ? TIOCM_CAR : 0) | |
864 | | ((msr & TI_MSR_RI) ? TIOCM_RI : 0) | |
865 | | ((msr & TI_MSR_DSR) ? TIOCM_DSR : 0); | |
866 | ||
d53839cf | 867 | dev_dbg(&port->dev, "%s - 0x%04X\n", __func__, result); |
1da177e4 LT |
868 | |
869 | return result; | |
870 | } | |
871 | ||
872 | ||
20b9d177 AC |
873 | static int ti_tiocmset(struct tty_struct *tty, |
874 | unsigned int set, unsigned int clear) | |
1da177e4 | 875 | { |
95da310e | 876 | struct usb_serial_port *port = tty->driver_data; |
1da177e4 LT |
877 | struct ti_port *tport = usb_get_serial_port_data(port); |
878 | unsigned int mcr; | |
04ca89d4 | 879 | unsigned long flags; |
1da177e4 | 880 | |
1da177e4 LT |
881 | if (tport == NULL) |
882 | return -ENODEV; | |
883 | ||
04ca89d4 | 884 | spin_lock_irqsave(&tport->tp_lock, flags); |
1da177e4 LT |
885 | mcr = tport->tp_shadow_mcr; |
886 | ||
887 | if (set & TIOCM_RTS) | |
888 | mcr |= TI_MCR_RTS; | |
889 | if (set & TIOCM_DTR) | |
890 | mcr |= TI_MCR_DTR; | |
891 | if (set & TIOCM_LOOP) | |
892 | mcr |= TI_MCR_LOOP; | |
893 | ||
894 | if (clear & TIOCM_RTS) | |
895 | mcr &= ~TI_MCR_RTS; | |
896 | if (clear & TIOCM_DTR) | |
897 | mcr &= ~TI_MCR_DTR; | |
898 | if (clear & TIOCM_LOOP) | |
899 | mcr &= ~TI_MCR_LOOP; | |
04ca89d4 | 900 | spin_unlock_irqrestore(&tport->tp_lock, flags); |
1da177e4 LT |
901 | |
902 | return ti_set_mcr(tport, mcr); | |
903 | } | |
904 | ||
905 | ||
95da310e | 906 | static void ti_break(struct tty_struct *tty, int break_state) |
1da177e4 | 907 | { |
95da310e | 908 | struct usb_serial_port *port = tty->driver_data; |
1da177e4 LT |
909 | struct ti_port *tport = usb_get_serial_port_data(port); |
910 | int status; | |
911 | ||
d53839cf | 912 | dev_dbg(&port->dev, "%s - state = %d\n", __func__, break_state); |
1da177e4 LT |
913 | |
914 | if (tport == NULL) | |
915 | return; | |
916 | ||
d53839cf | 917 | status = ti_write_byte(port, tport->tp_tdev, |
1da177e4 LT |
918 | tport->tp_uart_base_addr + TI_UART_OFFSET_LCR, |
919 | TI_LCR_BREAK, break_state == -1 ? TI_LCR_BREAK : 0); | |
920 | ||
921 | if (status) | |
d53839cf | 922 | dev_dbg(&port->dev, "%s - error setting break, %d\n", __func__, status); |
1da177e4 LT |
923 | } |
924 | ||
925 | ||
7d12e780 | 926 | static void ti_interrupt_callback(struct urb *urb) |
1da177e4 | 927 | { |
cdc97792 | 928 | struct ti_device *tdev = urb->context; |
1da177e4 LT |
929 | struct usb_serial_port *port; |
930 | struct usb_serial *serial = tdev->td_serial; | |
931 | struct ti_port *tport; | |
932 | struct device *dev = &urb->dev->dev; | |
933 | unsigned char *data = urb->transfer_buffer; | |
934 | int length = urb->actual_length; | |
935 | int port_number; | |
936 | int function; | |
52171b48 GKH |
937 | int status = urb->status; |
938 | int retval; | |
1da177e4 LT |
939 | __u8 msr; |
940 | ||
52171b48 | 941 | switch (status) { |
1da177e4 LT |
942 | case 0: |
943 | break; | |
944 | case -ECONNRESET: | |
945 | case -ENOENT: | |
946 | case -ESHUTDOWN: | |
d53839cf | 947 | dev_dbg(dev, "%s - urb shutting down, %d\n", __func__, status); |
1da177e4 LT |
948 | tdev->td_urb_error = 1; |
949 | return; | |
950 | default: | |
d53839cf | 951 | dev_err(dev, "%s - nonzero urb status, %d\n", __func__, status); |
1da177e4 LT |
952 | tdev->td_urb_error = 1; |
953 | goto exit; | |
954 | } | |
955 | ||
956 | if (length != 2) { | |
d53839cf | 957 | dev_dbg(dev, "%s - bad packet size, %d\n", __func__, length); |
1da177e4 LT |
958 | goto exit; |
959 | } | |
960 | ||
961 | if (data[0] == TI_CODE_HARDWARE_ERROR) { | |
441b62c1 | 962 | dev_err(dev, "%s - hardware error, %d\n", __func__, data[1]); |
1da177e4 LT |
963 | goto exit; |
964 | } | |
965 | ||
966 | port_number = TI_GET_PORT_FROM_CODE(data[0]); | |
967 | function = TI_GET_FUNC_FROM_CODE(data[0]); | |
968 | ||
d53839cf GKH |
969 | dev_dbg(dev, "%s - port_number %d, function %d, data 0x%02X\n", |
970 | __func__, port_number, function, data[1]); | |
1da177e4 LT |
971 | |
972 | if (port_number >= serial->num_ports) { | |
a30fa793 AC |
973 | dev_err(dev, "%s - bad port number, %d\n", |
974 | __func__, port_number); | |
1da177e4 LT |
975 | goto exit; |
976 | } | |
977 | ||
978 | port = serial->port[port_number]; | |
979 | ||
980 | tport = usb_get_serial_port_data(port); | |
981 | if (!tport) | |
982 | goto exit; | |
983 | ||
984 | switch (function) { | |
985 | case TI_CODE_DATA_ERROR: | |
a30fa793 | 986 | dev_err(dev, "%s - DATA ERROR, port %d, data 0x%02X\n", |
d53839cf | 987 | __func__, port_number, data[1]); |
1da177e4 LT |
988 | break; |
989 | ||
990 | case TI_CODE_MODEM_STATUS: | |
991 | msr = data[1]; | |
d53839cf | 992 | dev_dbg(dev, "%s - port %d, msr 0x%02X\n", __func__, port_number, msr); |
1da177e4 LT |
993 | ti_handle_new_msr(tport, msr); |
994 | break; | |
995 | ||
996 | default: | |
a30fa793 AC |
997 | dev_err(dev, "%s - unknown interrupt code, 0x%02X\n", |
998 | __func__, data[1]); | |
1da177e4 LT |
999 | break; |
1000 | } | |
1001 | ||
1002 | exit: | |
52171b48 GKH |
1003 | retval = usb_submit_urb(urb, GFP_ATOMIC); |
1004 | if (retval) | |
1005 | dev_err(dev, "%s - resubmit interrupt urb failed, %d\n", | |
441b62c1 | 1006 | __func__, retval); |
1da177e4 LT |
1007 | } |
1008 | ||
1009 | ||
7d12e780 | 1010 | static void ti_bulk_in_callback(struct urb *urb) |
1da177e4 | 1011 | { |
cdc97792 | 1012 | struct ti_port *tport = urb->context; |
1da177e4 LT |
1013 | struct usb_serial_port *port = tport->tp_port; |
1014 | struct device *dev = &urb->dev->dev; | |
52171b48 GKH |
1015 | int status = urb->status; |
1016 | int retval = 0; | |
1da177e4 | 1017 | |
52171b48 | 1018 | switch (status) { |
1da177e4 LT |
1019 | case 0: |
1020 | break; | |
1021 | case -ECONNRESET: | |
1022 | case -ENOENT: | |
1023 | case -ESHUTDOWN: | |
d53839cf | 1024 | dev_dbg(dev, "%s - urb shutting down, %d\n", __func__, status); |
1da177e4 | 1025 | tport->tp_tdev->td_urb_error = 1; |
1da177e4 LT |
1026 | return; |
1027 | default: | |
52171b48 | 1028 | dev_err(dev, "%s - nonzero urb status, %d\n", |
a30fa793 | 1029 | __func__, status); |
1da177e4 | 1030 | tport->tp_tdev->td_urb_error = 1; |
1da177e4 LT |
1031 | } |
1032 | ||
52171b48 | 1033 | if (status == -EPIPE) |
1da177e4 LT |
1034 | goto exit; |
1035 | ||
52171b48 | 1036 | if (status) { |
441b62c1 | 1037 | dev_err(dev, "%s - stopping read!\n", __func__); |
1da177e4 LT |
1038 | return; |
1039 | } | |
1040 | ||
2e124b4a JS |
1041 | if (urb->actual_length) { |
1042 | usb_serial_debug_data(dev, __func__, urb->actual_length, | |
1043 | urb->transfer_buffer); | |
1044 | ||
1045 | if (!tport->tp_is_open) | |
1046 | dev_dbg(dev, "%s - port closed, dropping data\n", | |
1047 | __func__); | |
1048 | else | |
1049 | ti_recv(port, urb->transfer_buffer, urb->actual_length); | |
1050 | spin_lock(&tport->tp_lock); | |
783ca355 | 1051 | port->icount.rx += urb->actual_length; |
2e124b4a | 1052 | spin_unlock(&tport->tp_lock); |
1da177e4 LT |
1053 | } |
1054 | ||
1055 | exit: | |
1056 | /* continue to read unless stopping */ | |
1057 | spin_lock(&tport->tp_lock); | |
5833041f | 1058 | if (tport->tp_read_urb_state == TI_READ_URB_RUNNING) |
52171b48 | 1059 | retval = usb_submit_urb(urb, GFP_ATOMIC); |
5833041f | 1060 | else if (tport->tp_read_urb_state == TI_READ_URB_STOPPING) |
1da177e4 | 1061 | tport->tp_read_urb_state = TI_READ_URB_STOPPED; |
5833041f | 1062 | |
1da177e4 | 1063 | spin_unlock(&tport->tp_lock); |
52171b48 GKH |
1064 | if (retval) |
1065 | dev_err(dev, "%s - resubmit read urb failed, %d\n", | |
441b62c1 | 1066 | __func__, retval); |
1da177e4 LT |
1067 | } |
1068 | ||
1069 | ||
7d12e780 | 1070 | static void ti_bulk_out_callback(struct urb *urb) |
1da177e4 | 1071 | { |
cdc97792 | 1072 | struct ti_port *tport = urb->context; |
1da177e4 | 1073 | struct usb_serial_port *port = tport->tp_port; |
52171b48 | 1074 | int status = urb->status; |
1da177e4 | 1075 | |
1da177e4 LT |
1076 | tport->tp_write_urb_in_use = 0; |
1077 | ||
52171b48 | 1078 | switch (status) { |
1da177e4 LT |
1079 | case 0: |
1080 | break; | |
1081 | case -ECONNRESET: | |
1082 | case -ENOENT: | |
1083 | case -ESHUTDOWN: | |
d53839cf | 1084 | dev_dbg(&port->dev, "%s - urb shutting down, %d\n", __func__, status); |
1da177e4 | 1085 | tport->tp_tdev->td_urb_error = 1; |
1da177e4 LT |
1086 | return; |
1087 | default: | |
22a416c4 | 1088 | dev_err_console(port, "%s - nonzero urb status, %d\n", |
441b62c1 | 1089 | __func__, status); |
1da177e4 | 1090 | tport->tp_tdev->td_urb_error = 1; |
1da177e4 LT |
1091 | } |
1092 | ||
1093 | /* send any buffered data */ | |
1094 | ti_send(tport); | |
1095 | } | |
1096 | ||
1097 | ||
2e124b4a JS |
1098 | static void ti_recv(struct usb_serial_port *port, unsigned char *data, |
1099 | int length) | |
1da177e4 LT |
1100 | { |
1101 | int cnt; | |
1102 | ||
1103 | do { | |
05c7cd39 | 1104 | cnt = tty_insert_flip_string(&port->port, data, length); |
33f0f88f | 1105 | if (cnt < length) { |
05c7cd39 | 1106 | dev_err(&port->dev, "%s - dropping data, %d bytes lost\n", |
a30fa793 AC |
1107 | __func__, length - cnt); |
1108 | if (cnt == 0) | |
33f0f88f | 1109 | break; |
1da177e4 | 1110 | } |
2e124b4a | 1111 | tty_flip_buffer_push(&port->port); |
1da177e4 LT |
1112 | data += cnt; |
1113 | length -= cnt; | |
1114 | } while (length > 0); | |
1da177e4 LT |
1115 | } |
1116 | ||
1117 | ||
1118 | static void ti_send(struct ti_port *tport) | |
1119 | { | |
1120 | int count, result; | |
1121 | struct usb_serial_port *port = tport->tp_port; | |
1da177e4 LT |
1122 | unsigned long flags; |
1123 | ||
1da177e4 LT |
1124 | spin_lock_irqsave(&tport->tp_lock, flags); |
1125 | ||
4a90f09b AC |
1126 | if (tport->tp_write_urb_in_use) |
1127 | goto unlock; | |
1da177e4 | 1128 | |
cd1e098b | 1129 | count = kfifo_out(&port->write_fifo, |
1da177e4 LT |
1130 | port->write_urb->transfer_buffer, |
1131 | port->bulk_out_size); | |
1132 | ||
4a90f09b AC |
1133 | if (count == 0) |
1134 | goto unlock; | |
1da177e4 LT |
1135 | |
1136 | tport->tp_write_urb_in_use = 1; | |
1137 | ||
1138 | spin_unlock_irqrestore(&tport->tp_lock, flags); | |
1139 | ||
59d33f2f GKH |
1140 | usb_serial_debug_data(&port->dev, __func__, count, |
1141 | port->write_urb->transfer_buffer); | |
1da177e4 LT |
1142 | |
1143 | usb_fill_bulk_urb(port->write_urb, port->serial->dev, | |
1144 | usb_sndbulkpipe(port->serial->dev, | |
1145 | port->bulk_out_endpointAddress), | |
1146 | port->write_urb->transfer_buffer, count, | |
1147 | ti_bulk_out_callback, tport); | |
1148 | ||
1149 | result = usb_submit_urb(port->write_urb, GFP_ATOMIC); | |
1150 | if (result) { | |
22a416c4 | 1151 | dev_err_console(port, "%s - submit write urb failed, %d\n", |
a30fa793 AC |
1152 | __func__, result); |
1153 | tport->tp_write_urb_in_use = 0; | |
1da177e4 LT |
1154 | /* TODO: reschedule ti_send */ |
1155 | } else { | |
1156 | spin_lock_irqsave(&tport->tp_lock, flags); | |
783ca355 | 1157 | port->icount.tx += count; |
1da177e4 LT |
1158 | spin_unlock_irqrestore(&tport->tp_lock, flags); |
1159 | } | |
1160 | ||
1161 | /* more room in the buffer for new writes, wakeup */ | |
6aad04f2 JS |
1162 | tty_port_tty_wakeup(&port->port); |
1163 | ||
4a90f09b AC |
1164 | return; |
1165 | unlock: | |
1166 | spin_unlock_irqrestore(&tport->tp_lock, flags); | |
4a90f09b | 1167 | return; |
1da177e4 LT |
1168 | } |
1169 | ||
1170 | ||
1171 | static int ti_set_mcr(struct ti_port *tport, unsigned int mcr) | |
1172 | { | |
04ca89d4 | 1173 | unsigned long flags; |
1da177e4 LT |
1174 | int status; |
1175 | ||
d53839cf | 1176 | status = ti_write_byte(tport->tp_port, tport->tp_tdev, |
1da177e4 LT |
1177 | tport->tp_uart_base_addr + TI_UART_OFFSET_MCR, |
1178 | TI_MCR_RTS | TI_MCR_DTR | TI_MCR_LOOP, mcr); | |
1179 | ||
04ca89d4 | 1180 | spin_lock_irqsave(&tport->tp_lock, flags); |
1da177e4 LT |
1181 | if (!status) |
1182 | tport->tp_shadow_mcr = mcr; | |
04ca89d4 | 1183 | spin_unlock_irqrestore(&tport->tp_lock, flags); |
1da177e4 LT |
1184 | |
1185 | return status; | |
1186 | } | |
1187 | ||
1188 | ||
b5784f7d | 1189 | static int ti_get_lsr(struct ti_port *tport, u8 *lsr) |
1da177e4 | 1190 | { |
a30fa793 | 1191 | int size, status; |
1da177e4 LT |
1192 | struct ti_device *tdev = tport->tp_tdev; |
1193 | struct usb_serial_port *port = tport->tp_port; | |
1143832e | 1194 | int port_number = port->port_number; |
1da177e4 LT |
1195 | struct ti_port_status *data; |
1196 | ||
1da177e4 LT |
1197 | size = sizeof(struct ti_port_status); |
1198 | data = kmalloc(size, GFP_KERNEL); | |
1199 | if (!data) { | |
441b62c1 | 1200 | dev_err(&port->dev, "%s - out of memory\n", __func__); |
1da177e4 LT |
1201 | return -ENOMEM; |
1202 | } | |
1203 | ||
1204 | status = ti_command_in_sync(tdev, TI_GET_PORT_STATUS, | |
1205 | (__u8)(TI_UART1_PORT+port_number), 0, (__u8 *)data, size); | |
1206 | if (status) { | |
a30fa793 AC |
1207 | dev_err(&port->dev, |
1208 | "%s - get port status command failed, %d\n", | |
1209 | __func__, status); | |
1da177e4 LT |
1210 | goto free_data; |
1211 | } | |
1212 | ||
d53839cf | 1213 | dev_dbg(&port->dev, "%s - lsr 0x%02X\n", __func__, data->bLSR); |
1da177e4 | 1214 | |
b5784f7d | 1215 | *lsr = data->bLSR; |
1da177e4 LT |
1216 | |
1217 | free_data: | |
1218 | kfree(data); | |
1219 | return status; | |
1220 | } | |
1221 | ||
1222 | ||
1223 | static int ti_get_serial_info(struct ti_port *tport, | |
1224 | struct serial_struct __user *ret_arg) | |
1225 | { | |
1226 | struct usb_serial_port *port = tport->tp_port; | |
1227 | struct serial_struct ret_serial; | |
f1175daa | 1228 | unsigned cwait; |
1da177e4 LT |
1229 | |
1230 | if (!ret_arg) | |
1231 | return -EFAULT; | |
1232 | ||
f1175daa JH |
1233 | cwait = port->port.closing_wait; |
1234 | if (cwait != ASYNC_CLOSING_WAIT_NONE) | |
1235 | cwait = jiffies_to_msecs(cwait) / 10; | |
1236 | ||
1da177e4 LT |
1237 | memset(&ret_serial, 0, sizeof(ret_serial)); |
1238 | ||
1239 | ret_serial.type = PORT_16550A; | |
e5b1e206 | 1240 | ret_serial.line = port->minor; |
1143832e | 1241 | ret_serial.port = port->port_number; |
1da177e4 | 1242 | ret_serial.flags = tport->tp_flags; |
cd1e098b | 1243 | ret_serial.xmit_fifo_size = kfifo_size(&port->write_fifo); |
1da177e4 | 1244 | ret_serial.baud_base = tport->tp_tdev->td_is_3410 ? 921600 : 460800; |
f1175daa | 1245 | ret_serial.closing_wait = cwait; |
1da177e4 LT |
1246 | |
1247 | if (copy_to_user(ret_arg, &ret_serial, sizeof(*ret_arg))) | |
1248 | return -EFAULT; | |
1249 | ||
1250 | return 0; | |
1251 | } | |
1252 | ||
1253 | ||
4a90f09b | 1254 | static int ti_set_serial_info(struct tty_struct *tty, struct ti_port *tport, |
1da177e4 LT |
1255 | struct serial_struct __user *new_arg) |
1256 | { | |
1da177e4 | 1257 | struct serial_struct new_serial; |
f1175daa | 1258 | unsigned cwait; |
1da177e4 LT |
1259 | |
1260 | if (copy_from_user(&new_serial, new_arg, sizeof(new_serial))) | |
1261 | return -EFAULT; | |
1262 | ||
f1175daa JH |
1263 | cwait = new_serial.closing_wait; |
1264 | if (cwait != ASYNC_CLOSING_WAIT_NONE) | |
1265 | cwait = msecs_to_jiffies(10 * new_serial.closing_wait); | |
1266 | ||
1da177e4 | 1267 | tport->tp_flags = new_serial.flags & TI_SET_SERIAL_FLAGS; |
f1175daa | 1268 | tport->tp_port->port.closing_wait = cwait; |
1da177e4 LT |
1269 | |
1270 | return 0; | |
1271 | } | |
1272 | ||
1273 | ||
1274 | static void ti_handle_new_msr(struct ti_port *tport, __u8 msr) | |
1275 | { | |
1276 | struct async_icount *icount; | |
1277 | struct tty_struct *tty; | |
1278 | unsigned long flags; | |
1279 | ||
d53839cf | 1280 | dev_dbg(&tport->tp_port->dev, "%s - msr 0x%02X\n", __func__, msr); |
1da177e4 LT |
1281 | |
1282 | if (msr & TI_MSR_DELTA_MASK) { | |
1283 | spin_lock_irqsave(&tport->tp_lock, flags); | |
783ca355 | 1284 | icount = &tport->tp_port->icount; |
1da177e4 LT |
1285 | if (msr & TI_MSR_DELTA_CTS) |
1286 | icount->cts++; | |
1287 | if (msr & TI_MSR_DELTA_DSR) | |
1288 | icount->dsr++; | |
1289 | if (msr & TI_MSR_DELTA_CD) | |
1290 | icount->dcd++; | |
1291 | if (msr & TI_MSR_DELTA_RI) | |
1292 | icount->rng++; | |
6c75e260 | 1293 | wake_up_interruptible(&tport->tp_port->port.delta_msr_wait); |
1da177e4 LT |
1294 | spin_unlock_irqrestore(&tport->tp_lock, flags); |
1295 | } | |
1296 | ||
1297 | tport->tp_msr = msr & TI_MSR_MASK; | |
1298 | ||
1299 | /* handle CTS flow control */ | |
4a90f09b | 1300 | tty = tty_port_tty_get(&tport->tp_port->port); |
1da177e4 LT |
1301 | if (tty && C_CRTSCTS(tty)) { |
1302 | if (msr & TI_MSR_CTS) { | |
1303 | tty->hw_stopped = 0; | |
1304 | tty_wakeup(tty); | |
1305 | } else { | |
1306 | tty->hw_stopped = 1; | |
1307 | } | |
1308 | } | |
4a90f09b | 1309 | tty_kref_put(tty); |
1da177e4 LT |
1310 | } |
1311 | ||
1312 | ||
1da177e4 LT |
1313 | static void ti_stop_read(struct ti_port *tport, struct tty_struct *tty) |
1314 | { | |
1315 | unsigned long flags; | |
1316 | ||
1317 | spin_lock_irqsave(&tport->tp_lock, flags); | |
1318 | ||
1319 | if (tport->tp_read_urb_state == TI_READ_URB_RUNNING) | |
1320 | tport->tp_read_urb_state = TI_READ_URB_STOPPING; | |
1321 | ||
1322 | spin_unlock_irqrestore(&tport->tp_lock, flags); | |
1323 | } | |
1324 | ||
1325 | ||
1326 | static int ti_restart_read(struct ti_port *tport, struct tty_struct *tty) | |
1327 | { | |
1328 | struct urb *urb; | |
1329 | int status = 0; | |
1330 | unsigned long flags; | |
1331 | ||
1332 | spin_lock_irqsave(&tport->tp_lock, flags); | |
1333 | ||
1334 | if (tport->tp_read_urb_state == TI_READ_URB_STOPPED) { | |
944dc184 | 1335 | tport->tp_read_urb_state = TI_READ_URB_RUNNING; |
1da177e4 | 1336 | urb = tport->tp_port->read_urb; |
944dc184 | 1337 | spin_unlock_irqrestore(&tport->tp_lock, flags); |
1da177e4 | 1338 | urb->context = tport; |
1da177e4 | 1339 | status = usb_submit_urb(urb, GFP_KERNEL); |
944dc184 ON |
1340 | } else { |
1341 | tport->tp_read_urb_state = TI_READ_URB_RUNNING; | |
1342 | spin_unlock_irqrestore(&tport->tp_lock, flags); | |
1da177e4 | 1343 | } |
1da177e4 LT |
1344 | |
1345 | return status; | |
1346 | } | |
1347 | ||
1348 | ||
1349 | static int ti_command_out_sync(struct ti_device *tdev, __u8 command, | |
1350 | __u16 moduleid, __u16 value, __u8 *data, int size) | |
1351 | { | |
1352 | int status; | |
1353 | ||
1354 | status = usb_control_msg(tdev->td_serial->dev, | |
1355 | usb_sndctrlpipe(tdev->td_serial->dev, 0), command, | |
1356 | (USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_OUT), | |
1357 | value, moduleid, data, size, 1000); | |
1358 | ||
1359 | if (status == size) | |
1360 | status = 0; | |
1361 | ||
1362 | if (status > 0) | |
1363 | status = -ECOMM; | |
1364 | ||
1365 | return status; | |
1366 | } | |
1367 | ||
1368 | ||
1369 | static int ti_command_in_sync(struct ti_device *tdev, __u8 command, | |
1370 | __u16 moduleid, __u16 value, __u8 *data, int size) | |
1371 | { | |
1372 | int status; | |
1373 | ||
1374 | status = usb_control_msg(tdev->td_serial->dev, | |
1375 | usb_rcvctrlpipe(tdev->td_serial->dev, 0), command, | |
1376 | (USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_IN), | |
1377 | value, moduleid, data, size, 1000); | |
1378 | ||
1379 | if (status == size) | |
1380 | status = 0; | |
1381 | ||
1382 | if (status > 0) | |
1383 | status = -ECOMM; | |
1384 | ||
1385 | return status; | |
1386 | } | |
1387 | ||
1388 | ||
d53839cf GKH |
1389 | static int ti_write_byte(struct usb_serial_port *port, |
1390 | struct ti_device *tdev, unsigned long addr, | |
1391 | __u8 mask, __u8 byte) | |
1da177e4 LT |
1392 | { |
1393 | int status; | |
1394 | unsigned int size; | |
1395 | struct ti_write_data_bytes *data; | |
1da177e4 | 1396 | |
d53839cf GKH |
1397 | dev_dbg(&port->dev, "%s - addr 0x%08lX, mask 0x%02X, byte 0x%02X\n", __func__, |
1398 | addr, mask, byte); | |
1da177e4 LT |
1399 | |
1400 | size = sizeof(struct ti_write_data_bytes) + 2; | |
1401 | data = kmalloc(size, GFP_KERNEL); | |
1402 | if (!data) { | |
d53839cf | 1403 | dev_err(&port->dev, "%s - out of memory\n", __func__); |
1da177e4 LT |
1404 | return -ENOMEM; |
1405 | } | |
1406 | ||
1407 | data->bAddrType = TI_RW_DATA_ADDR_XDATA; | |
1408 | data->bDataType = TI_RW_DATA_BYTE; | |
1409 | data->bDataCounter = 1; | |
1410 | data->wBaseAddrHi = cpu_to_be16(addr>>16); | |
1411 | data->wBaseAddrLo = cpu_to_be16(addr); | |
1412 | data->bData[0] = mask; | |
1413 | data->bData[1] = byte; | |
1414 | ||
1415 | status = ti_command_out_sync(tdev, TI_WRITE_DATA, TI_RAM_PORT, 0, | |
1416 | (__u8 *)data, size); | |
1417 | ||
1418 | if (status < 0) | |
d53839cf | 1419 | dev_err(&port->dev, "%s - failed, %d\n", __func__, status); |
1da177e4 LT |
1420 | |
1421 | kfree(data); | |
1422 | ||
1423 | return status; | |
1424 | } | |
1425 | ||
95da310e AC |
1426 | static int ti_do_download(struct usb_device *dev, int pipe, |
1427 | u8 *buffer, int size) | |
1da177e4 | 1428 | { |
1da177e4 | 1429 | int pos; |
95da310e | 1430 | u8 cs = 0; |
1da177e4 | 1431 | int done; |
1da177e4 | 1432 | struct ti_firmware_header *header; |
87ea8c88 | 1433 | int status = 0; |
95da310e | 1434 | int len; |
a30fa793 AC |
1435 | |
1436 | for (pos = sizeof(struct ti_firmware_header); pos < size; pos++) | |
1da177e4 LT |
1437 | cs = (__u8)(cs + buffer[pos]); |
1438 | ||
1439 | header = (struct ti_firmware_header *)buffer; | |
a30fa793 | 1440 | header->wLength = cpu_to_le16((__u16)(size |
95da310e | 1441 | - sizeof(struct ti_firmware_header))); |
1da177e4 LT |
1442 | header->bCheckSum = cs; |
1443 | ||
d53839cf | 1444 | dev_dbg(&dev->dev, "%s - downloading firmware\n", __func__); |
95da310e AC |
1445 | for (pos = 0; pos < size; pos += done) { |
1446 | len = min(size - pos, TI_DOWNLOAD_MAX_PACKET_SIZE); | |
1447 | status = usb_bulk_msg(dev, pipe, buffer + pos, len, | |
1448 | &done, 1000); | |
1da177e4 LT |
1449 | if (status) |
1450 | break; | |
1451 | } | |
95da310e AC |
1452 | return status; |
1453 | } | |
1da177e4 | 1454 | |
05a3d905 | 1455 | static int ti_download_firmware(struct ti_device *tdev) |
95da310e | 1456 | { |
05a3d905 | 1457 | int status; |
95da310e AC |
1458 | int buffer_size; |
1459 | __u8 *buffer; | |
1460 | struct usb_device *dev = tdev->td_serial->dev; | |
1461 | unsigned int pipe = usb_sndbulkpipe(dev, | |
1462 | tdev->td_serial->port[0]->bulk_out_endpointAddress); | |
1463 | const struct firmware *fw_p; | |
1464 | char buf[32]; | |
1da177e4 | 1465 | |
05a3d905 | 1466 | /* try ID specific firmware first, then try generic firmware */ |
e877dd2f JH |
1467 | sprintf(buf, "ti_usb-v%04x-p%04x.fw", |
1468 | le16_to_cpu(dev->descriptor.idVendor), | |
1469 | le16_to_cpu(dev->descriptor.idProduct)); | |
72b27a07 AR |
1470 | status = request_firmware(&fw_p, buf, &dev->dev); |
1471 | ||
1472 | if (status != 0) { | |
cb7a7c6a | 1473 | buf[0] = '\0'; |
e877dd2f JH |
1474 | if (le16_to_cpu(dev->descriptor.idVendor) == MTS_VENDOR_ID) { |
1475 | switch (le16_to_cpu(dev->descriptor.idProduct)) { | |
cb7a7c6a CA |
1476 | case MTS_CDMA_PRODUCT_ID: |
1477 | strcpy(buf, "mts_cdma.fw"); | |
1478 | break; | |
1479 | case MTS_GSM_PRODUCT_ID: | |
1480 | strcpy(buf, "mts_gsm.fw"); | |
1481 | break; | |
1482 | case MTS_EDGE_PRODUCT_ID: | |
1483 | strcpy(buf, "mts_edge.fw"); | |
1484 | break; | |
cdc04834 AM |
1485 | case MTS_MT9234MU_PRODUCT_ID: |
1486 | strcpy(buf, "mts_mt9234mu.fw"); | |
1487 | break; | |
1488 | case MTS_MT9234ZBA_PRODUCT_ID: | |
1489 | strcpy(buf, "mts_mt9234zba.fw"); | |
1490 | break; | |
1491 | case MTS_MT9234ZBAOLD_PRODUCT_ID: | |
1492 | strcpy(buf, "mts_mt9234zba.fw"); | |
1493 | break; } | |
cb7a7c6a CA |
1494 | } |
1495 | if (buf[0] == '\0') { | |
1496 | if (tdev->td_is_3410) | |
1497 | strcpy(buf, "ti_3410.fw"); | |
1498 | else | |
1499 | strcpy(buf, "ti_5052.fw"); | |
1500 | } | |
05a3d905 CA |
1501 | status = request_firmware(&fw_p, buf, &dev->dev); |
1502 | } | |
1503 | if (status) { | |
95da310e AC |
1504 | dev_err(&dev->dev, "%s - firmware not found\n", __func__); |
1505 | return -ENOENT; | |
1506 | } | |
1507 | if (fw_p->size > TI_FIRMWARE_BUF_SIZE) { | |
75181f38 | 1508 | dev_err(&dev->dev, "%s - firmware too large %zu\n", __func__, fw_p->size); |
357f45db | 1509 | release_firmware(fw_p); |
95da310e AC |
1510 | return -ENOENT; |
1511 | } | |
1512 | ||
1513 | buffer_size = TI_FIRMWARE_BUF_SIZE + sizeof(struct ti_firmware_header); | |
1514 | buffer = kmalloc(buffer_size, GFP_KERNEL); | |
1515 | if (buffer) { | |
1516 | memcpy(buffer, fw_p->data, fw_p->size); | |
1517 | memset(buffer + fw_p->size, 0xff, buffer_size - fw_p->size); | |
2bcbe4c1 | 1518 | status = ti_do_download(dev, pipe, buffer, fw_p->size); |
95da310e | 1519 | kfree(buffer); |
05a3d905 | 1520 | } else { |
d53839cf | 1521 | dev_dbg(&dev->dev, "%s ENOMEM\n", __func__); |
05a3d905 | 1522 | status = -ENOMEM; |
95da310e AC |
1523 | } |
1524 | release_firmware(fw_p); | |
1da177e4 | 1525 | if (status) { |
a30fa793 AC |
1526 | dev_err(&dev->dev, "%s - error downloading firmware, %d\n", |
1527 | __func__, status); | |
1da177e4 LT |
1528 | return status; |
1529 | } | |
1530 | ||
d53839cf | 1531 | dev_dbg(&dev->dev, "%s - download successful\n", __func__); |
1da177e4 LT |
1532 | |
1533 | return 0; | |
1534 | } |