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 | ||
48 | #define TI_WRITE_BUF_SIZE 1024 | |
49 | ||
50 | #define TI_TRANSFER_TIMEOUT 2 | |
51 | ||
1da177e4 LT |
52 | #define TI_DEFAULT_CLOSING_WAIT 4000 /* in .01 secs */ |
53 | ||
54 | /* supported setserial flags */ | |
2400a2bf | 55 | #define TI_SET_SERIAL_FLAGS 0 |
1da177e4 LT |
56 | |
57 | /* read urb states */ | |
58 | #define TI_READ_URB_RUNNING 0 | |
59 | #define TI_READ_URB_STOPPING 1 | |
60 | #define TI_READ_URB_STOPPED 2 | |
61 | ||
62 | #define TI_EXTRA_VID_PID_COUNT 5 | |
63 | ||
64 | ||
65 | /* Structures */ | |
66 | ||
67 | struct ti_port { | |
68 | int tp_is_open; | |
69 | __u8 tp_msr; | |
70 | __u8 tp_lsr; | |
71 | __u8 tp_shadow_mcr; | |
72 | __u8 tp_uart_mode; /* 232 or 485 modes */ | |
73 | unsigned int tp_uart_base_addr; | |
74 | int tp_flags; | |
75 | int tp_closing_wait;/* in .01 secs */ | |
76 | struct async_icount tp_icount; | |
1da177e4 LT |
77 | wait_queue_head_t tp_write_wait; |
78 | struct ti_device *tp_tdev; | |
79 | struct usb_serial_port *tp_port; | |
80 | spinlock_t tp_lock; | |
81 | int tp_read_urb_state; | |
82 | int tp_write_urb_in_use; | |
074ef65a | 83 | struct kfifo write_fifo; |
1da177e4 LT |
84 | }; |
85 | ||
86 | struct ti_device { | |
9da0068a | 87 | struct mutex td_open_close_lock; |
1da177e4 LT |
88 | int td_open_port_count; |
89 | struct usb_serial *td_serial; | |
90 | int td_is_3410; | |
91 | int td_urb_error; | |
92 | }; | |
93 | ||
94 | ||
95 | /* Function Declarations */ | |
96 | ||
97 | static int ti_startup(struct usb_serial *serial); | |
f9c99bb8 | 98 | static void ti_release(struct usb_serial *serial); |
51ef847d JH |
99 | static int ti_port_probe(struct usb_serial_port *port); |
100 | static int ti_port_remove(struct usb_serial_port *port); | |
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 | 122 | |
2e124b4a JS |
123 | static void ti_recv(struct usb_serial_port *port, unsigned char *data, |
124 | int length); | |
1da177e4 LT |
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 | ||
d53839cf GKH |
144 | static int ti_write_byte(struct usb_serial_port *port, struct ti_device *tdev, |
145 | unsigned long addr, __u8 mask, __u8 byte); | |
1da177e4 | 146 | |
05a3d905 | 147 | static int ti_download_firmware(struct ti_device *tdev); |
1da177e4 | 148 | |
1da177e4 LT |
149 | |
150 | /* Data */ | |
151 | ||
152 | /* module parameters */ | |
1da177e4 LT |
153 | static int closing_wait = TI_DEFAULT_CLOSING_WAIT; |
154 | static ushort vendor_3410[TI_EXTRA_VID_PID_COUNT]; | |
64a6f950 | 155 | static unsigned int vendor_3410_count; |
1da177e4 | 156 | static ushort product_3410[TI_EXTRA_VID_PID_COUNT]; |
64a6f950 | 157 | static unsigned int product_3410_count; |
1da177e4 | 158 | static ushort vendor_5052[TI_EXTRA_VID_PID_COUNT]; |
64a6f950 | 159 | static unsigned int vendor_5052_count; |
1da177e4 | 160 | static ushort product_5052[TI_EXTRA_VID_PID_COUNT]; |
64a6f950 | 161 | static unsigned int product_5052_count; |
1da177e4 LT |
162 | |
163 | /* supported devices */ | |
164 | /* the array dimension is the number of default entries plus */ | |
165 | /* TI_EXTRA_VID_PID_COUNT user defined entries plus 1 terminating */ | |
166 | /* null entry */ | |
975dc33b | 167 | static struct usb_device_id ti_id_table_3410[15+TI_EXTRA_VID_PID_COUNT+1] = { |
1da177e4 | 168 | { USB_DEVICE(TI_VENDOR_ID, TI_3410_PRODUCT_ID) }, |
1f54a6ae | 169 | { USB_DEVICE(TI_VENDOR_ID, TI_3410_EZ430_ID) }, |
cb7a7c6a CA |
170 | { USB_DEVICE(MTS_VENDOR_ID, MTS_GSM_NO_FW_PRODUCT_ID) }, |
171 | { USB_DEVICE(MTS_VENDOR_ID, MTS_CDMA_NO_FW_PRODUCT_ID) }, | |
172 | { USB_DEVICE(MTS_VENDOR_ID, MTS_CDMA_PRODUCT_ID) }, | |
173 | { USB_DEVICE(MTS_VENDOR_ID, MTS_GSM_PRODUCT_ID) }, | |
174 | { USB_DEVICE(MTS_VENDOR_ID, MTS_EDGE_PRODUCT_ID) }, | |
cdc04834 AM |
175 | { USB_DEVICE(MTS_VENDOR_ID, MTS_MT9234MU_PRODUCT_ID) }, |
176 | { USB_DEVICE(MTS_VENDOR_ID, MTS_MT9234ZBA_PRODUCT_ID) }, | |
177 | { USB_DEVICE(MTS_VENDOR_ID, MTS_MT9234ZBAOLD_PRODUCT_ID) }, | |
1a1fab51 | 178 | { USB_DEVICE(IBM_VENDOR_ID, IBM_4543_PRODUCT_ID) }, |
97dcf041 ON |
179 | { USB_DEVICE(IBM_VENDOR_ID, IBM_454B_PRODUCT_ID) }, |
180 | { USB_DEVICE(IBM_VENDOR_ID, IBM_454C_PRODUCT_ID) }, | |
7fd25702 | 181 | { USB_DEVICE(ABBOTT_VENDOR_ID, ABBOTT_PRODUCT_ID) }, |
975dc33b | 182 | { USB_DEVICE(TI_VENDOR_ID, FRI2_PRODUCT_ID) }, |
1da177e4 LT |
183 | }; |
184 | ||
97dcf041 | 185 | static struct usb_device_id ti_id_table_5052[5+TI_EXTRA_VID_PID_COUNT+1] = { |
1da177e4 LT |
186 | { USB_DEVICE(TI_VENDOR_ID, TI_5052_BOOT_PRODUCT_ID) }, |
187 | { USB_DEVICE(TI_VENDOR_ID, TI_5152_BOOT_PRODUCT_ID) }, | |
188 | { USB_DEVICE(TI_VENDOR_ID, TI_5052_EEPROM_PRODUCT_ID) }, | |
189 | { USB_DEVICE(TI_VENDOR_ID, TI_5052_FIRMWARE_PRODUCT_ID) }, | |
190 | }; | |
191 | ||
975dc33b | 192 | static struct usb_device_id ti_id_table_combined[19+2*TI_EXTRA_VID_PID_COUNT+1] = { |
1da177e4 | 193 | { USB_DEVICE(TI_VENDOR_ID, TI_3410_PRODUCT_ID) }, |
1f54a6ae | 194 | { USB_DEVICE(TI_VENDOR_ID, TI_3410_EZ430_ID) }, |
cb7a7c6a CA |
195 | { USB_DEVICE(MTS_VENDOR_ID, MTS_GSM_NO_FW_PRODUCT_ID) }, |
196 | { USB_DEVICE(MTS_VENDOR_ID, MTS_CDMA_NO_FW_PRODUCT_ID) }, | |
197 | { USB_DEVICE(MTS_VENDOR_ID, MTS_CDMA_PRODUCT_ID) }, | |
198 | { USB_DEVICE(MTS_VENDOR_ID, MTS_GSM_PRODUCT_ID) }, | |
199 | { USB_DEVICE(MTS_VENDOR_ID, MTS_EDGE_PRODUCT_ID) }, | |
cdc04834 AM |
200 | { USB_DEVICE(MTS_VENDOR_ID, MTS_MT9234MU_PRODUCT_ID) }, |
201 | { USB_DEVICE(MTS_VENDOR_ID, MTS_MT9234ZBA_PRODUCT_ID) }, | |
202 | { USB_DEVICE(MTS_VENDOR_ID, MTS_MT9234ZBAOLD_PRODUCT_ID) }, | |
1da177e4 LT |
203 | { USB_DEVICE(TI_VENDOR_ID, TI_5052_BOOT_PRODUCT_ID) }, |
204 | { USB_DEVICE(TI_VENDOR_ID, TI_5152_BOOT_PRODUCT_ID) }, | |
205 | { USB_DEVICE(TI_VENDOR_ID, TI_5052_EEPROM_PRODUCT_ID) }, | |
206 | { USB_DEVICE(TI_VENDOR_ID, TI_5052_FIRMWARE_PRODUCT_ID) }, | |
1a1fab51 | 207 | { USB_DEVICE(IBM_VENDOR_ID, IBM_4543_PRODUCT_ID) }, |
97dcf041 ON |
208 | { USB_DEVICE(IBM_VENDOR_ID, IBM_454B_PRODUCT_ID) }, |
209 | { USB_DEVICE(IBM_VENDOR_ID, IBM_454C_PRODUCT_ID) }, | |
7fd25702 | 210 | { USB_DEVICE(ABBOTT_VENDOR_ID, ABBOTT_PRODUCT_ID) }, |
975dc33b | 211 | { USB_DEVICE(TI_VENDOR_ID, FRI2_PRODUCT_ID) }, |
1da177e4 LT |
212 | { } |
213 | }; | |
214 | ||
ea65370d | 215 | static struct usb_serial_driver ti_1port_device = { |
18fcac35 | 216 | .driver = { |
269bda1c GKH |
217 | .owner = THIS_MODULE, |
218 | .name = "ti_usb_3410_5052_1", | |
18fcac35 | 219 | }, |
269bda1c | 220 | .description = "TI USB 3410 1 port adapter", |
1da177e4 | 221 | .id_table = ti_id_table_3410, |
1da177e4 LT |
222 | .num_ports = 1, |
223 | .attach = ti_startup, | |
f9c99bb8 | 224 | .release = ti_release, |
51ef847d JH |
225 | .port_probe = ti_port_probe, |
226 | .port_remove = ti_port_remove, | |
1da177e4 LT |
227 | .open = ti_open, |
228 | .close = ti_close, | |
229 | .write = ti_write, | |
230 | .write_room = ti_write_room, | |
231 | .chars_in_buffer = ti_chars_in_buffer, | |
232 | .throttle = ti_throttle, | |
233 | .unthrottle = ti_unthrottle, | |
234 | .ioctl = ti_ioctl, | |
235 | .set_termios = ti_set_termios, | |
236 | .tiocmget = ti_tiocmget, | |
237 | .tiocmset = ti_tiocmset, | |
0bca1b91 | 238 | .get_icount = ti_get_icount, |
1da177e4 LT |
239 | .break_ctl = ti_break, |
240 | .read_int_callback = ti_interrupt_callback, | |
241 | .read_bulk_callback = ti_bulk_in_callback, | |
242 | .write_bulk_callback = ti_bulk_out_callback, | |
243 | }; | |
244 | ||
ea65370d | 245 | static struct usb_serial_driver ti_2port_device = { |
18fcac35 | 246 | .driver = { |
269bda1c GKH |
247 | .owner = THIS_MODULE, |
248 | .name = "ti_usb_3410_5052_2", | |
18fcac35 | 249 | }, |
269bda1c | 250 | .description = "TI USB 5052 2 port adapter", |
1da177e4 | 251 | .id_table = ti_id_table_5052, |
1da177e4 LT |
252 | .num_ports = 2, |
253 | .attach = ti_startup, | |
f9c99bb8 | 254 | .release = ti_release, |
51ef847d JH |
255 | .port_probe = ti_port_probe, |
256 | .port_remove = ti_port_remove, | |
1da177e4 LT |
257 | .open = ti_open, |
258 | .close = ti_close, | |
259 | .write = ti_write, | |
260 | .write_room = ti_write_room, | |
261 | .chars_in_buffer = ti_chars_in_buffer, | |
262 | .throttle = ti_throttle, | |
263 | .unthrottle = ti_unthrottle, | |
264 | .ioctl = ti_ioctl, | |
265 | .set_termios = ti_set_termios, | |
266 | .tiocmget = ti_tiocmget, | |
267 | .tiocmset = ti_tiocmset, | |
0bca1b91 | 268 | .get_icount = ti_get_icount, |
1da177e4 LT |
269 | .break_ctl = ti_break, |
270 | .read_int_callback = ti_interrupt_callback, | |
271 | .read_bulk_callback = ti_bulk_in_callback, | |
272 | .write_bulk_callback = ti_bulk_out_callback, | |
273 | }; | |
274 | ||
29618e9f AS |
275 | static struct usb_serial_driver * const serial_drivers[] = { |
276 | &ti_1port_device, &ti_2port_device, NULL | |
277 | }; | |
1da177e4 LT |
278 | |
279 | /* Module */ | |
280 | ||
281 | MODULE_AUTHOR(TI_DRIVER_AUTHOR); | |
282 | MODULE_DESCRIPTION(TI_DRIVER_DESC); | |
1da177e4 LT |
283 | MODULE_LICENSE("GPL"); |
284 | ||
5f24e2d6 DW |
285 | MODULE_FIRMWARE("ti_3410.fw"); |
286 | MODULE_FIRMWARE("ti_5052.fw"); | |
7df52316 CA |
287 | MODULE_FIRMWARE("mts_cdma.fw"); |
288 | MODULE_FIRMWARE("mts_gsm.fw"); | |
289 | MODULE_FIRMWARE("mts_edge.fw"); | |
cdc04834 AM |
290 | MODULE_FIRMWARE("mts_mt9234mu.fw"); |
291 | MODULE_FIRMWARE("mts_mt9234zba.fw"); | |
5f24e2d6 | 292 | |
1da177e4 | 293 | module_param(closing_wait, int, S_IRUGO | S_IWUSR); |
a30fa793 AC |
294 | MODULE_PARM_DESC(closing_wait, |
295 | "Maximum wait for data to drain in close, in .01 secs, default is 4000"); | |
1da177e4 LT |
296 | |
297 | module_param_array(vendor_3410, ushort, &vendor_3410_count, S_IRUGO); | |
a30fa793 AC |
298 | MODULE_PARM_DESC(vendor_3410, |
299 | "Vendor ids for 3410 based devices, 1-5 short integers"); | |
1da177e4 | 300 | module_param_array(product_3410, ushort, &product_3410_count, S_IRUGO); |
a30fa793 AC |
301 | MODULE_PARM_DESC(product_3410, |
302 | "Product ids for 3410 based devices, 1-5 short integers"); | |
1da177e4 | 303 | module_param_array(vendor_5052, ushort, &vendor_5052_count, S_IRUGO); |
a30fa793 AC |
304 | MODULE_PARM_DESC(vendor_5052, |
305 | "Vendor ids for 5052 based devices, 1-5 short integers"); | |
1da177e4 | 306 | module_param_array(product_5052, ushort, &product_5052_count, S_IRUGO); |
a30fa793 AC |
307 | MODULE_PARM_DESC(product_5052, |
308 | "Product ids for 5052 based devices, 1-5 short integers"); | |
1da177e4 LT |
309 | |
310 | MODULE_DEVICE_TABLE(usb, ti_id_table_combined); | |
311 | ||
312 | ||
313 | /* Functions */ | |
314 | ||
315 | static int __init ti_init(void) | |
316 | { | |
05a3d905 | 317 | int i, j, c; |
1da177e4 | 318 | |
1da177e4 | 319 | /* insert extra vendor and product ids */ |
05a3d905 | 320 | c = ARRAY_SIZE(ti_id_table_combined) - 2 * TI_EXTRA_VID_PID_COUNT - 1; |
52950ed4 | 321 | j = ARRAY_SIZE(ti_id_table_3410) - TI_EXTRA_VID_PID_COUNT - 1; |
05a3d905 | 322 | for (i = 0; i < min(vendor_3410_count, product_3410_count); i++, j++, c++) { |
1da177e4 LT |
323 | ti_id_table_3410[j].idVendor = vendor_3410[i]; |
324 | ti_id_table_3410[j].idProduct = product_3410[i]; | |
325 | ti_id_table_3410[j].match_flags = USB_DEVICE_ID_MATCH_DEVICE; | |
05a3d905 CA |
326 | ti_id_table_combined[c].idVendor = vendor_3410[i]; |
327 | ti_id_table_combined[c].idProduct = product_3410[i]; | |
328 | ti_id_table_combined[c].match_flags = USB_DEVICE_ID_MATCH_DEVICE; | |
1da177e4 | 329 | } |
52950ed4 | 330 | j = ARRAY_SIZE(ti_id_table_5052) - TI_EXTRA_VID_PID_COUNT - 1; |
05a3d905 | 331 | for (i = 0; i < min(vendor_5052_count, product_5052_count); i++, j++, c++) { |
1da177e4 LT |
332 | ti_id_table_5052[j].idVendor = vendor_5052[i]; |
333 | ti_id_table_5052[j].idProduct = product_5052[i]; | |
334 | ti_id_table_5052[j].match_flags = USB_DEVICE_ID_MATCH_DEVICE; | |
05a3d905 CA |
335 | ti_id_table_combined[c].idVendor = vendor_5052[i]; |
336 | ti_id_table_combined[c].idProduct = product_5052[i]; | |
337 | ti_id_table_combined[c].match_flags = USB_DEVICE_ID_MATCH_DEVICE; | |
1da177e4 LT |
338 | } |
339 | ||
f378dfe4 | 340 | return usb_serial_register_drivers(serial_drivers, KBUILD_MODNAME, ti_id_table_combined); |
1da177e4 LT |
341 | } |
342 | ||
1da177e4 LT |
343 | static void __exit ti_exit(void) |
344 | { | |
68e24113 | 345 | usb_serial_deregister_drivers(serial_drivers); |
1da177e4 LT |
346 | } |
347 | ||
1da177e4 LT |
348 | module_init(ti_init); |
349 | module_exit(ti_exit); | |
350 | ||
351 | ||
352 | static int ti_startup(struct usb_serial *serial) | |
353 | { | |
354 | struct ti_device *tdev; | |
1da177e4 LT |
355 | struct usb_device *dev = serial->dev; |
356 | int status; | |
1da177e4 | 357 | |
d53839cf GKH |
358 | dev_dbg(&dev->dev, |
359 | "%s - product 0x%4X, num configurations %d, configuration value %d", | |
360 | __func__, le16_to_cpu(dev->descriptor.idProduct), | |
361 | dev->descriptor.bNumConfigurations, | |
362 | dev->actconfig->desc.bConfigurationValue); | |
1da177e4 LT |
363 | |
364 | /* create device structure */ | |
80b6ca48 | 365 | tdev = kzalloc(sizeof(struct ti_device), GFP_KERNEL); |
1da177e4 | 366 | if (tdev == NULL) { |
441b62c1 | 367 | dev_err(&dev->dev, "%s - out of memory\n", __func__); |
1da177e4 LT |
368 | return -ENOMEM; |
369 | } | |
9da0068a | 370 | mutex_init(&tdev->td_open_close_lock); |
1da177e4 LT |
371 | tdev->td_serial = serial; |
372 | usb_set_serial_data(serial, tdev); | |
373 | ||
374 | /* determine device type */ | |
375 | if (usb_match_id(serial->interface, ti_id_table_3410)) | |
376 | tdev->td_is_3410 = 1; | |
d53839cf GKH |
377 | dev_dbg(&dev->dev, "%s - device type is %s\n", __func__, |
378 | tdev->td_is_3410 ? "3410" : "5052"); | |
1da177e4 LT |
379 | |
380 | /* if we have only 1 configuration, download firmware */ | |
381 | if (dev->descriptor.bNumConfigurations == 1) { | |
72b27a07 AR |
382 | status = ti_download_firmware(tdev); |
383 | ||
384 | if (status != 0) | |
1da177e4 LT |
385 | goto free_tdev; |
386 | ||
387 | /* 3410 must be reset, 5052 resets itself */ | |
388 | if (tdev->td_is_3410) { | |
389 | msleep_interruptible(100); | |
390 | usb_reset_device(dev); | |
391 | } | |
392 | ||
393 | status = -ENODEV; | |
394 | goto free_tdev; | |
a30fa793 | 395 | } |
1da177e4 | 396 | |
413ba6fb | 397 | /* the second configuration must be set */ |
1da177e4 | 398 | if (dev->actconfig->desc.bConfigurationValue == TI_BOOT_CONFIG) { |
413ba6fb ON |
399 | status = usb_driver_set_configuration(dev, TI_ACTIVE_CONFIG); |
400 | status = status ? status : -ENODEV; | |
1da177e4 LT |
401 | goto free_tdev; |
402 | } | |
403 | ||
1da177e4 LT |
404 | return 0; |
405 | ||
1da177e4 LT |
406 | free_tdev: |
407 | kfree(tdev); | |
408 | usb_set_serial_data(serial, NULL); | |
409 | return status; | |
410 | } | |
411 | ||
412 | ||
f9c99bb8 | 413 | static void ti_release(struct usb_serial *serial) |
1da177e4 | 414 | { |
1da177e4 | 415 | struct ti_device *tdev = usb_get_serial_data(serial); |
51ef847d JH |
416 | |
417 | kfree(tdev); | |
418 | } | |
419 | ||
420 | static int ti_port_probe(struct usb_serial_port *port) | |
421 | { | |
1da177e4 LT |
422 | struct ti_port *tport; |
423 | ||
51ef847d JH |
424 | tport = kzalloc(sizeof(*tport), GFP_KERNEL); |
425 | if (!tport) | |
426 | return -ENOMEM; | |
427 | ||
428 | spin_lock_init(&tport->tp_lock); | |
429 | if (port == port->serial->port[0]) | |
430 | tport->tp_uart_base_addr = TI_UART1_BASE_ADDR; | |
431 | else | |
432 | tport->tp_uart_base_addr = TI_UART2_BASE_ADDR; | |
433 | tport->tp_closing_wait = closing_wait; | |
51ef847d JH |
434 | init_waitqueue_head(&tport->tp_write_wait); |
435 | if (kfifo_alloc(&tport->write_fifo, TI_WRITE_BUF_SIZE, GFP_KERNEL)) { | |
436 | kfree(tport); | |
437 | return -ENOMEM; | |
1da177e4 | 438 | } |
51ef847d JH |
439 | tport->tp_port = port; |
440 | tport->tp_tdev = usb_get_serial_data(port->serial); | |
441 | tport->tp_uart_mode = 0; /* default is RS232 */ | |
1da177e4 | 442 | |
51ef847d JH |
443 | usb_set_serial_port_data(port, tport); |
444 | ||
445 | return 0; | |
1da177e4 LT |
446 | } |
447 | ||
51ef847d JH |
448 | static int ti_port_remove(struct usb_serial_port *port) |
449 | { | |
450 | struct ti_port *tport; | |
451 | ||
452 | tport = usb_get_serial_port_data(port); | |
453 | kfifo_free(&tport->write_fifo); | |
454 | kfree(tport); | |
455 | ||
456 | return 0; | |
457 | } | |
1da177e4 | 458 | |
a509a7e4 | 459 | static int ti_open(struct tty_struct *tty, struct usb_serial_port *port) |
1da177e4 LT |
460 | { |
461 | struct ti_port *tport = usb_get_serial_port_data(port); | |
462 | struct ti_device *tdev; | |
463 | struct usb_device *dev; | |
464 | struct urb *urb; | |
465 | int port_number; | |
466 | int status; | |
a30fa793 AC |
467 | __u16 open_settings = (__u8)(TI_PIPE_MODE_CONTINOUS | |
468 | TI_PIPE_TIMEOUT_ENABLE | | |
1da177e4 LT |
469 | (TI_TRANSFER_TIMEOUT << 2)); |
470 | ||
1da177e4 LT |
471 | if (tport == NULL) |
472 | return -ENODEV; | |
473 | ||
474 | dev = port->serial->dev; | |
475 | tdev = tport->tp_tdev; | |
476 | ||
477 | /* only one open on any port on a device at a time */ | |
9da0068a | 478 | if (mutex_lock_interruptible(&tdev->td_open_close_lock)) |
1da177e4 LT |
479 | return -ERESTARTSYS; |
480 | ||
1da177e4 LT |
481 | port_number = port->number - port->serial->minor; |
482 | ||
483 | memset(&(tport->tp_icount), 0x00, sizeof(tport->tp_icount)); | |
484 | ||
485 | tport->tp_msr = 0; | |
486 | tport->tp_shadow_mcr |= (TI_MCR_RTS | TI_MCR_DTR); | |
487 | ||
488 | /* start interrupt urb the first time a port is opened on this device */ | |
489 | if (tdev->td_open_port_count == 0) { | |
d53839cf | 490 | dev_dbg(&port->dev, "%s - start interrupt in urb\n", __func__); |
1da177e4 LT |
491 | urb = tdev->td_serial->port[0]->interrupt_in_urb; |
492 | if (!urb) { | |
d53839cf | 493 | dev_err(&port->dev, "%s - no interrupt urb\n", __func__); |
1da177e4 | 494 | status = -EINVAL; |
9da0068a | 495 | goto release_lock; |
1da177e4 | 496 | } |
1da177e4 | 497 | urb->context = tdev; |
1da177e4 LT |
498 | status = usb_submit_urb(urb, GFP_KERNEL); |
499 | if (status) { | |
d53839cf | 500 | dev_err(&port->dev, "%s - submit interrupt urb failed, %d\n", __func__, status); |
9da0068a | 501 | goto release_lock; |
1da177e4 LT |
502 | } |
503 | } | |
504 | ||
95da310e | 505 | if (tty) |
adc8d746 | 506 | ti_set_termios(tty, port, &tty->termios); |
1da177e4 | 507 | |
d53839cf | 508 | dev_dbg(&port->dev, "%s - sending TI_OPEN_PORT\n", __func__); |
1da177e4 LT |
509 | status = ti_command_out_sync(tdev, TI_OPEN_PORT, |
510 | (__u8)(TI_UART1_PORT + port_number), open_settings, NULL, 0); | |
511 | if (status) { | |
a30fa793 | 512 | dev_err(&port->dev, "%s - cannot send open command, %d\n", |
d53839cf | 513 | __func__, status); |
1da177e4 LT |
514 | goto unlink_int_urb; |
515 | } | |
516 | ||
d53839cf | 517 | dev_dbg(&port->dev, "%s - sending TI_START_PORT\n", __func__); |
1da177e4 LT |
518 | status = ti_command_out_sync(tdev, TI_START_PORT, |
519 | (__u8)(TI_UART1_PORT + port_number), 0, NULL, 0); | |
520 | if (status) { | |
a30fa793 AC |
521 | dev_err(&port->dev, "%s - cannot send start command, %d\n", |
522 | __func__, status); | |
1da177e4 LT |
523 | goto unlink_int_urb; |
524 | } | |
525 | ||
d53839cf | 526 | dev_dbg(&port->dev, "%s - sending TI_PURGE_PORT\n", __func__); |
1da177e4 LT |
527 | status = ti_command_out_sync(tdev, TI_PURGE_PORT, |
528 | (__u8)(TI_UART1_PORT + port_number), TI_PURGE_INPUT, NULL, 0); | |
529 | if (status) { | |
a30fa793 AC |
530 | dev_err(&port->dev, "%s - cannot clear input buffers, %d\n", |
531 | __func__, status); | |
1da177e4 LT |
532 | goto unlink_int_urb; |
533 | } | |
534 | status = ti_command_out_sync(tdev, TI_PURGE_PORT, | |
535 | (__u8)(TI_UART1_PORT + port_number), TI_PURGE_OUTPUT, NULL, 0); | |
536 | if (status) { | |
a30fa793 AC |
537 | dev_err(&port->dev, "%s - cannot clear output buffers, %d\n", |
538 | __func__, status); | |
1da177e4 LT |
539 | goto unlink_int_urb; |
540 | } | |
541 | ||
542 | /* reset the data toggle on the bulk endpoints to work around bug in | |
543 | * host controllers where things get out of sync some times */ | |
544 | usb_clear_halt(dev, port->write_urb->pipe); | |
545 | usb_clear_halt(dev, port->read_urb->pipe); | |
546 | ||
95da310e | 547 | if (tty) |
adc8d746 | 548 | ti_set_termios(tty, port, &tty->termios); |
1da177e4 | 549 | |
d53839cf | 550 | dev_dbg(&port->dev, "%s - sending TI_OPEN_PORT (2)\n", __func__); |
1da177e4 LT |
551 | status = ti_command_out_sync(tdev, TI_OPEN_PORT, |
552 | (__u8)(TI_UART1_PORT + port_number), open_settings, NULL, 0); | |
553 | if (status) { | |
a30fa793 AC |
554 | dev_err(&port->dev, "%s - cannot send open command (2), %d\n", |
555 | __func__, status); | |
1da177e4 LT |
556 | goto unlink_int_urb; |
557 | } | |
558 | ||
d53839cf | 559 | dev_dbg(&port->dev, "%s - sending TI_START_PORT (2)\n", __func__); |
1da177e4 LT |
560 | status = ti_command_out_sync(tdev, TI_START_PORT, |
561 | (__u8)(TI_UART1_PORT + port_number), 0, NULL, 0); | |
562 | if (status) { | |
a30fa793 AC |
563 | dev_err(&port->dev, "%s - cannot send start command (2), %d\n", |
564 | __func__, status); | |
1da177e4 LT |
565 | goto unlink_int_urb; |
566 | } | |
567 | ||
568 | /* start read urb */ | |
d53839cf | 569 | dev_dbg(&port->dev, "%s - start read urb\n", __func__); |
1da177e4 LT |
570 | urb = port->read_urb; |
571 | if (!urb) { | |
441b62c1 | 572 | dev_err(&port->dev, "%s - no read urb\n", __func__); |
1da177e4 LT |
573 | status = -EINVAL; |
574 | goto unlink_int_urb; | |
575 | } | |
576 | tport->tp_read_urb_state = TI_READ_URB_RUNNING; | |
1da177e4 | 577 | urb->context = tport; |
1da177e4 LT |
578 | status = usb_submit_urb(urb, GFP_KERNEL); |
579 | if (status) { | |
a30fa793 AC |
580 | dev_err(&port->dev, "%s - submit read urb failed, %d\n", |
581 | __func__, status); | |
1da177e4 LT |
582 | goto unlink_int_urb; |
583 | } | |
584 | ||
585 | tport->tp_is_open = 1; | |
586 | ++tdev->td_open_port_count; | |
587 | ||
9da0068a | 588 | goto release_lock; |
1da177e4 LT |
589 | |
590 | unlink_int_urb: | |
591 | if (tdev->td_open_port_count == 0) | |
592 | usb_kill_urb(port->serial->port[0]->interrupt_in_urb); | |
9da0068a MK |
593 | release_lock: |
594 | mutex_unlock(&tdev->td_open_close_lock); | |
d53839cf | 595 | dev_dbg(&port->dev, "%s - exit %d\n", __func__, status); |
1da177e4 LT |
596 | return status; |
597 | } | |
598 | ||
599 | ||
335f8514 | 600 | static void ti_close(struct usb_serial_port *port) |
1da177e4 LT |
601 | { |
602 | struct ti_device *tdev; | |
603 | struct ti_port *tport; | |
604 | int port_number; | |
605 | int status; | |
9da0068a | 606 | int do_unlock; |
1da177e4 | 607 | |
1da177e4 LT |
608 | tdev = usb_get_serial_data(port->serial); |
609 | tport = usb_get_serial_port_data(port); | |
610 | if (tdev == NULL || tport == NULL) | |
611 | return; | |
612 | ||
613 | tport->tp_is_open = 0; | |
614 | ||
615 | ti_drain(tport, (tport->tp_closing_wait*HZ)/100, 1); | |
616 | ||
617 | usb_kill_urb(port->read_urb); | |
618 | usb_kill_urb(port->write_urb); | |
619 | tport->tp_write_urb_in_use = 0; | |
620 | ||
621 | port_number = port->number - port->serial->minor; | |
622 | ||
d53839cf | 623 | dev_dbg(&port->dev, "%s - sending TI_CLOSE_PORT\n", __func__); |
1da177e4 LT |
624 | status = ti_command_out_sync(tdev, TI_CLOSE_PORT, |
625 | (__u8)(TI_UART1_PORT + port_number), 0, NULL, 0); | |
626 | if (status) | |
a30fa793 AC |
627 | dev_err(&port->dev, |
628 | "%s - cannot send close port command, %d\n" | |
629 | , __func__, status); | |
1da177e4 | 630 | |
9da0068a MK |
631 | /* if mutex_lock is interrupted, continue anyway */ |
632 | do_unlock = !mutex_lock_interruptible(&tdev->td_open_close_lock); | |
1da177e4 LT |
633 | --tport->tp_tdev->td_open_port_count; |
634 | if (tport->tp_tdev->td_open_port_count <= 0) { | |
635 | /* last port is closed, shut down interrupt urb */ | |
636 | usb_kill_urb(port->serial->port[0]->interrupt_in_urb); | |
637 | tport->tp_tdev->td_open_port_count = 0; | |
638 | } | |
9da0068a MK |
639 | if (do_unlock) |
640 | mutex_unlock(&tdev->td_open_close_lock); | |
1da177e4 LT |
641 | } |
642 | ||
643 | ||
95da310e AC |
644 | static int ti_write(struct tty_struct *tty, struct usb_serial_port *port, |
645 | const unsigned char *data, int count) | |
1da177e4 LT |
646 | { |
647 | struct ti_port *tport = usb_get_serial_port_data(port); | |
1da177e4 | 648 | |
1da177e4 | 649 | if (count == 0) { |
d53839cf | 650 | dev_dbg(&port->dev, "%s - write request of 0 bytes\n", __func__); |
1da177e4 LT |
651 | return 0; |
652 | } | |
653 | ||
654 | if (tport == NULL || !tport->tp_is_open) | |
655 | return -ENODEV; | |
656 | ||
074ef65a JH |
657 | count = kfifo_in_locked(&tport->write_fifo, data, count, |
658 | &tport->tp_lock); | |
1da177e4 LT |
659 | ti_send(tport); |
660 | ||
661 | return count; | |
662 | } | |
663 | ||
664 | ||
95da310e | 665 | static int ti_write_room(struct tty_struct *tty) |
1da177e4 | 666 | { |
95da310e | 667 | struct usb_serial_port *port = tty->driver_data; |
1da177e4 LT |
668 | struct ti_port *tport = usb_get_serial_port_data(port); |
669 | int room = 0; | |
670 | unsigned long flags; | |
671 | ||
1da177e4 | 672 | if (tport == NULL) |
23198fda | 673 | return 0; |
a30fa793 | 674 | |
1da177e4 | 675 | spin_lock_irqsave(&tport->tp_lock, flags); |
074ef65a | 676 | room = kfifo_avail(&tport->write_fifo); |
1da177e4 LT |
677 | spin_unlock_irqrestore(&tport->tp_lock, flags); |
678 | ||
d53839cf | 679 | dev_dbg(&port->dev, "%s - returns %d\n", __func__, room); |
1da177e4 LT |
680 | return room; |
681 | } | |
682 | ||
683 | ||
95da310e | 684 | static int ti_chars_in_buffer(struct tty_struct *tty) |
1da177e4 | 685 | { |
95da310e | 686 | struct usb_serial_port *port = tty->driver_data; |
1da177e4 LT |
687 | struct ti_port *tport = usb_get_serial_port_data(port); |
688 | int chars = 0; | |
689 | unsigned long flags; | |
690 | ||
1da177e4 | 691 | if (tport == NULL) |
23198fda | 692 | return 0; |
1da177e4 LT |
693 | |
694 | spin_lock_irqsave(&tport->tp_lock, flags); | |
074ef65a | 695 | chars = kfifo_len(&tport->write_fifo); |
1da177e4 LT |
696 | spin_unlock_irqrestore(&tport->tp_lock, flags); |
697 | ||
d53839cf | 698 | dev_dbg(&port->dev, "%s - returns %d\n", __func__, chars); |
1da177e4 LT |
699 | return chars; |
700 | } | |
701 | ||
702 | ||
95da310e | 703 | static void ti_throttle(struct tty_struct *tty) |
1da177e4 | 704 | { |
95da310e | 705 | struct usb_serial_port *port = tty->driver_data; |
1da177e4 | 706 | struct ti_port *tport = usb_get_serial_port_data(port); |
1da177e4 | 707 | |
1da177e4 LT |
708 | if (tport == NULL) |
709 | return; | |
710 | ||
1da177e4 LT |
711 | if (I_IXOFF(tty) || C_CRTSCTS(tty)) |
712 | ti_stop_read(tport, tty); | |
713 | ||
714 | } | |
715 | ||
716 | ||
95da310e | 717 | static void ti_unthrottle(struct tty_struct *tty) |
1da177e4 | 718 | { |
95da310e | 719 | struct usb_serial_port *port = tty->driver_data; |
1da177e4 | 720 | struct ti_port *tport = usb_get_serial_port_data(port); |
1da177e4 LT |
721 | int status; |
722 | ||
1da177e4 LT |
723 | if (tport == NULL) |
724 | return; | |
725 | ||
1da177e4 LT |
726 | if (I_IXOFF(tty) || C_CRTSCTS(tty)) { |
727 | status = ti_restart_read(tport, tty); | |
728 | if (status) | |
a30fa793 AC |
729 | dev_err(&port->dev, "%s - cannot restart read, %d\n", |
730 | __func__, status); | |
1da177e4 LT |
731 | } |
732 | } | |
733 | ||
0bca1b91 AC |
734 | static int ti_get_icount(struct tty_struct *tty, |
735 | struct serial_icounter_struct *icount) | |
736 | { | |
737 | struct usb_serial_port *port = tty->driver_data; | |
738 | struct ti_port *tport = usb_get_serial_port_data(port); | |
739 | struct async_icount cnow = tport->tp_icount; | |
740 | ||
d53839cf | 741 | dev_dbg(&port->dev, "%s - TIOCGICOUNT RX=%d, TX=%d\n", __func__, |
0bca1b91 AC |
742 | cnow.rx, cnow.tx); |
743 | ||
744 | icount->cts = cnow.cts; | |
745 | icount->dsr = cnow.dsr; | |
746 | icount->rng = cnow.rng; | |
747 | icount->dcd = cnow.dcd; | |
748 | icount->rx = cnow.rx; | |
749 | icount->tx = cnow.tx; | |
750 | icount->frame = cnow.frame; | |
751 | icount->overrun = cnow.overrun; | |
752 | icount->parity = cnow.parity; | |
753 | icount->brk = cnow.brk; | |
754 | icount->buf_overrun = cnow.buf_overrun; | |
755 | ||
756 | return 0; | |
757 | } | |
1da177e4 | 758 | |
00a0d0d6 | 759 | static int ti_ioctl(struct tty_struct *tty, |
1da177e4 LT |
760 | unsigned int cmd, unsigned long arg) |
761 | { | |
95da310e | 762 | struct usb_serial_port *port = tty->driver_data; |
1da177e4 LT |
763 | struct ti_port *tport = usb_get_serial_port_data(port); |
764 | struct async_icount cnow; | |
765 | struct async_icount cprev; | |
766 | ||
d53839cf | 767 | dev_dbg(&port->dev, "%s - cmd = 0x%04X\n", __func__, cmd); |
1da177e4 LT |
768 | |
769 | if (tport == NULL) | |
770 | return -ENODEV; | |
771 | ||
772 | switch (cmd) { | |
a30fa793 | 773 | case TIOCGSERIAL: |
d53839cf | 774 | dev_dbg(&port->dev, "%s - TIOCGSERIAL\n", __func__); |
a30fa793 AC |
775 | return ti_get_serial_info(tport, |
776 | (struct serial_struct __user *)arg); | |
777 | case TIOCSSERIAL: | |
d53839cf | 778 | dev_dbg(&port->dev, "%s - TIOCSSERIAL\n", __func__); |
4a90f09b AC |
779 | return ti_set_serial_info(tty, tport, |
780 | (struct serial_struct __user *)arg); | |
a30fa793 | 781 | case TIOCMIWAIT: |
d53839cf | 782 | dev_dbg(&port->dev, "%s - TIOCMIWAIT\n", __func__); |
a30fa793 AC |
783 | cprev = tport->tp_icount; |
784 | while (1) { | |
fc98ab87 | 785 | interruptible_sleep_on(&port->delta_msr_wait); |
a30fa793 AC |
786 | if (signal_pending(current)) |
787 | return -ERESTARTSYS; | |
fc98ab87 JH |
788 | |
789 | if (port->serial->disconnected) | |
790 | return -EIO; | |
791 | ||
a30fa793 AC |
792 | cnow = tport->tp_icount; |
793 | if (cnow.rng == cprev.rng && cnow.dsr == cprev.dsr && | |
794 | cnow.dcd == cprev.dcd && cnow.cts == cprev.cts) | |
795 | return -EIO; /* no change => error */ | |
796 | if (((arg & TIOCM_RNG) && (cnow.rng != cprev.rng)) || | |
797 | ((arg & TIOCM_DSR) && (cnow.dsr != cprev.dsr)) || | |
798 | ((arg & TIOCM_CD) && (cnow.dcd != cprev.dcd)) || | |
799 | ((arg & TIOCM_CTS) && (cnow.cts != cprev.cts))) | |
800 | return 0; | |
801 | cprev = cnow; | |
802 | } | |
803 | break; | |
1da177e4 | 804 | } |
1da177e4 LT |
805 | return -ENOIOCTLCMD; |
806 | } | |
807 | ||
808 | ||
95da310e AC |
809 | static void ti_set_termios(struct tty_struct *tty, |
810 | struct usb_serial_port *port, struct ktermios *old_termios) | |
1da177e4 LT |
811 | { |
812 | struct ti_port *tport = usb_get_serial_port_data(port); | |
1da177e4 | 813 | struct ti_uart_config *config; |
a30fa793 | 814 | tcflag_t cflag, iflag; |
1da177e4 LT |
815 | int baud; |
816 | int status; | |
817 | int port_number = port->number - port->serial->minor; | |
818 | unsigned int mcr; | |
819 | ||
adc8d746 AC |
820 | cflag = tty->termios.c_cflag; |
821 | iflag = tty->termios.c_iflag; | |
1da177e4 | 822 | |
d53839cf GKH |
823 | dev_dbg(&port->dev, "%s - cflag %08x, iflag %08x\n", __func__, cflag, iflag); |
824 | dev_dbg(&port->dev, "%s - old clfag %08x, old iflag %08x\n", __func__, | |
825 | old_termios->c_cflag, old_termios->c_iflag); | |
1da177e4 LT |
826 | |
827 | if (tport == NULL) | |
828 | return; | |
829 | ||
830 | config = kmalloc(sizeof(*config), GFP_KERNEL); | |
831 | if (!config) { | |
441b62c1 | 832 | dev_err(&port->dev, "%s - out of memory\n", __func__); |
1da177e4 LT |
833 | return; |
834 | } | |
835 | ||
836 | config->wFlags = 0; | |
837 | ||
838 | /* these flags must be set */ | |
839 | config->wFlags |= TI_UART_ENABLE_MS_INTS; | |
840 | config->wFlags |= TI_UART_ENABLE_AUTO_START_DMA; | |
841 | config->bUartMode = (__u8)(tport->tp_uart_mode); | |
842 | ||
843 | switch (cflag & CSIZE) { | |
a30fa793 AC |
844 | case CS5: |
845 | config->bDataBits = TI_UART_5_DATA_BITS; | |
846 | break; | |
847 | case CS6: | |
848 | config->bDataBits = TI_UART_6_DATA_BITS; | |
849 | break; | |
850 | case CS7: | |
851 | config->bDataBits = TI_UART_7_DATA_BITS; | |
852 | break; | |
853 | default: | |
854 | case CS8: | |
855 | config->bDataBits = TI_UART_8_DATA_BITS; | |
856 | break; | |
1da177e4 LT |
857 | } |
858 | ||
537699ef | 859 | /* CMSPAR isn't supported by this driver */ |
adc8d746 | 860 | tty->termios.c_cflag &= ~CMSPAR; |
537699ef | 861 | |
1da177e4 LT |
862 | if (cflag & PARENB) { |
863 | if (cflag & PARODD) { | |
864 | config->wFlags |= TI_UART_ENABLE_PARITY_CHECKING; | |
865 | config->bParity = TI_UART_ODD_PARITY; | |
866 | } else { | |
867 | config->wFlags |= TI_UART_ENABLE_PARITY_CHECKING; | |
868 | config->bParity = TI_UART_EVEN_PARITY; | |
869 | } | |
870 | } else { | |
871 | config->wFlags &= ~TI_UART_ENABLE_PARITY_CHECKING; | |
a30fa793 | 872 | config->bParity = TI_UART_NO_PARITY; |
1da177e4 LT |
873 | } |
874 | ||
875 | if (cflag & CSTOPB) | |
876 | config->bStopBits = TI_UART_2_STOP_BITS; | |
877 | else | |
878 | config->bStopBits = TI_UART_1_STOP_BITS; | |
879 | ||
880 | if (cflag & CRTSCTS) { | |
881 | /* RTS flow control must be off to drop RTS for baud rate B0 */ | |
882 | if ((cflag & CBAUD) != B0) | |
883 | config->wFlags |= TI_UART_ENABLE_RTS_IN; | |
884 | config->wFlags |= TI_UART_ENABLE_CTS_OUT; | |
885 | } else { | |
886 | tty->hw_stopped = 0; | |
887 | ti_restart_read(tport, tty); | |
888 | } | |
889 | ||
890 | if (I_IXOFF(tty) || I_IXON(tty)) { | |
891 | config->cXon = START_CHAR(tty); | |
892 | config->cXoff = STOP_CHAR(tty); | |
893 | ||
894 | if (I_IXOFF(tty)) | |
895 | config->wFlags |= TI_UART_ENABLE_X_IN; | |
896 | else | |
897 | ti_restart_read(tport, tty); | |
898 | ||
899 | if (I_IXON(tty)) | |
900 | config->wFlags |= TI_UART_ENABLE_X_OUT; | |
901 | } | |
902 | ||
903 | baud = tty_get_baud_rate(tty); | |
537699ef AC |
904 | if (!baud) |
905 | baud = 9600; | |
1da177e4 LT |
906 | if (tport->tp_tdev->td_is_3410) |
907 | config->wBaudRate = (__u16)((923077 + baud/2) / baud); | |
908 | else | |
909 | config->wBaudRate = (__u16)((461538 + baud/2) / baud); | |
910 | ||
537699ef AC |
911 | /* FIXME: Should calculate resulting baud here and report it back */ |
912 | if ((cflag & CBAUD) != B0) | |
913 | tty_encode_baud_rate(tty, baud, baud); | |
914 | ||
d53839cf GKH |
915 | dev_dbg(&port->dev, |
916 | "%s - BaudRate=%d, wBaudRate=%d, wFlags=0x%04X, bDataBits=%d, bParity=%d, bStopBits=%d, cXon=%d, cXoff=%d, bUartMode=%d", | |
917 | __func__, baud, config->wBaudRate, config->wFlags, | |
918 | config->bDataBits, config->bParity, config->bStopBits, | |
919 | config->cXon, config->cXoff, config->bUartMode); | |
1da177e4 LT |
920 | |
921 | cpu_to_be16s(&config->wBaudRate); | |
922 | cpu_to_be16s(&config->wFlags); | |
923 | ||
924 | status = ti_command_out_sync(tport->tp_tdev, TI_SET_CONFIG, | |
925 | (__u8)(TI_UART1_PORT + port_number), 0, (__u8 *)config, | |
926 | sizeof(*config)); | |
927 | if (status) | |
a30fa793 AC |
928 | dev_err(&port->dev, "%s - cannot set config on port %d, %d\n", |
929 | __func__, port_number, status); | |
1da177e4 LT |
930 | |
931 | /* SET_CONFIG asserts RTS and DTR, reset them correctly */ | |
932 | mcr = tport->tp_shadow_mcr; | |
933 | /* if baud rate is B0, clear RTS and DTR */ | |
934 | if ((cflag & CBAUD) == B0) | |
935 | mcr &= ~(TI_MCR_DTR | TI_MCR_RTS); | |
936 | status = ti_set_mcr(tport, mcr); | |
937 | if (status) | |
a30fa793 AC |
938 | dev_err(&port->dev, |
939 | "%s - cannot set modem control on port %d, %d\n", | |
940 | __func__, port_number, status); | |
1da177e4 LT |
941 | |
942 | kfree(config); | |
943 | } | |
944 | ||
945 | ||
60b33c13 | 946 | static int ti_tiocmget(struct tty_struct *tty) |
1da177e4 | 947 | { |
95da310e | 948 | struct usb_serial_port *port = tty->driver_data; |
1da177e4 LT |
949 | struct ti_port *tport = usb_get_serial_port_data(port); |
950 | unsigned int result; | |
951 | unsigned int msr; | |
952 | unsigned int mcr; | |
04ca89d4 | 953 | unsigned long flags; |
1da177e4 | 954 | |
1da177e4 LT |
955 | if (tport == NULL) |
956 | return -ENODEV; | |
957 | ||
04ca89d4 | 958 | spin_lock_irqsave(&tport->tp_lock, flags); |
1da177e4 LT |
959 | msr = tport->tp_msr; |
960 | mcr = tport->tp_shadow_mcr; | |
04ca89d4 | 961 | spin_unlock_irqrestore(&tport->tp_lock, flags); |
1da177e4 LT |
962 | |
963 | result = ((mcr & TI_MCR_DTR) ? TIOCM_DTR : 0) | |
964 | | ((mcr & TI_MCR_RTS) ? TIOCM_RTS : 0) | |
965 | | ((mcr & TI_MCR_LOOP) ? TIOCM_LOOP : 0) | |
966 | | ((msr & TI_MSR_CTS) ? TIOCM_CTS : 0) | |
967 | | ((msr & TI_MSR_CD) ? TIOCM_CAR : 0) | |
968 | | ((msr & TI_MSR_RI) ? TIOCM_RI : 0) | |
969 | | ((msr & TI_MSR_DSR) ? TIOCM_DSR : 0); | |
970 | ||
d53839cf | 971 | dev_dbg(&port->dev, "%s - 0x%04X\n", __func__, result); |
1da177e4 LT |
972 | |
973 | return result; | |
974 | } | |
975 | ||
976 | ||
20b9d177 AC |
977 | static int ti_tiocmset(struct tty_struct *tty, |
978 | unsigned int set, unsigned int clear) | |
1da177e4 | 979 | { |
95da310e | 980 | struct usb_serial_port *port = tty->driver_data; |
1da177e4 LT |
981 | struct ti_port *tport = usb_get_serial_port_data(port); |
982 | unsigned int mcr; | |
04ca89d4 | 983 | unsigned long flags; |
1da177e4 | 984 | |
1da177e4 LT |
985 | if (tport == NULL) |
986 | return -ENODEV; | |
987 | ||
04ca89d4 | 988 | spin_lock_irqsave(&tport->tp_lock, flags); |
1da177e4 LT |
989 | mcr = tport->tp_shadow_mcr; |
990 | ||
991 | if (set & TIOCM_RTS) | |
992 | mcr |= TI_MCR_RTS; | |
993 | if (set & TIOCM_DTR) | |
994 | mcr |= TI_MCR_DTR; | |
995 | if (set & TIOCM_LOOP) | |
996 | mcr |= TI_MCR_LOOP; | |
997 | ||
998 | if (clear & TIOCM_RTS) | |
999 | mcr &= ~TI_MCR_RTS; | |
1000 | if (clear & TIOCM_DTR) | |
1001 | mcr &= ~TI_MCR_DTR; | |
1002 | if (clear & TIOCM_LOOP) | |
1003 | mcr &= ~TI_MCR_LOOP; | |
04ca89d4 | 1004 | spin_unlock_irqrestore(&tport->tp_lock, flags); |
1da177e4 LT |
1005 | |
1006 | return ti_set_mcr(tport, mcr); | |
1007 | } | |
1008 | ||
1009 | ||
95da310e | 1010 | static void ti_break(struct tty_struct *tty, int break_state) |
1da177e4 | 1011 | { |
95da310e | 1012 | struct usb_serial_port *port = tty->driver_data; |
1da177e4 LT |
1013 | struct ti_port *tport = usb_get_serial_port_data(port); |
1014 | int status; | |
1015 | ||
d53839cf | 1016 | dev_dbg(&port->dev, "%s - state = %d\n", __func__, break_state); |
1da177e4 LT |
1017 | |
1018 | if (tport == NULL) | |
1019 | return; | |
1020 | ||
1021 | ti_drain(tport, (tport->tp_closing_wait*HZ)/100, 0); | |
1022 | ||
d53839cf | 1023 | status = ti_write_byte(port, tport->tp_tdev, |
1da177e4 LT |
1024 | tport->tp_uart_base_addr + TI_UART_OFFSET_LCR, |
1025 | TI_LCR_BREAK, break_state == -1 ? TI_LCR_BREAK : 0); | |
1026 | ||
1027 | if (status) | |
d53839cf | 1028 | dev_dbg(&port->dev, "%s - error setting break, %d\n", __func__, status); |
1da177e4 LT |
1029 | } |
1030 | ||
1031 | ||
7d12e780 | 1032 | static void ti_interrupt_callback(struct urb *urb) |
1da177e4 | 1033 | { |
cdc97792 | 1034 | struct ti_device *tdev = urb->context; |
1da177e4 LT |
1035 | struct usb_serial_port *port; |
1036 | struct usb_serial *serial = tdev->td_serial; | |
1037 | struct ti_port *tport; | |
1038 | struct device *dev = &urb->dev->dev; | |
1039 | unsigned char *data = urb->transfer_buffer; | |
1040 | int length = urb->actual_length; | |
1041 | int port_number; | |
1042 | int function; | |
52171b48 GKH |
1043 | int status = urb->status; |
1044 | int retval; | |
1da177e4 LT |
1045 | __u8 msr; |
1046 | ||
52171b48 | 1047 | switch (status) { |
1da177e4 LT |
1048 | case 0: |
1049 | break; | |
1050 | case -ECONNRESET: | |
1051 | case -ENOENT: | |
1052 | case -ESHUTDOWN: | |
d53839cf | 1053 | dev_dbg(dev, "%s - urb shutting down, %d\n", __func__, status); |
1da177e4 LT |
1054 | tdev->td_urb_error = 1; |
1055 | return; | |
1056 | default: | |
d53839cf | 1057 | dev_err(dev, "%s - nonzero urb status, %d\n", __func__, status); |
1da177e4 LT |
1058 | tdev->td_urb_error = 1; |
1059 | goto exit; | |
1060 | } | |
1061 | ||
1062 | if (length != 2) { | |
d53839cf | 1063 | dev_dbg(dev, "%s - bad packet size, %d\n", __func__, length); |
1da177e4 LT |
1064 | goto exit; |
1065 | } | |
1066 | ||
1067 | if (data[0] == TI_CODE_HARDWARE_ERROR) { | |
441b62c1 | 1068 | dev_err(dev, "%s - hardware error, %d\n", __func__, data[1]); |
1da177e4 LT |
1069 | goto exit; |
1070 | } | |
1071 | ||
1072 | port_number = TI_GET_PORT_FROM_CODE(data[0]); | |
1073 | function = TI_GET_FUNC_FROM_CODE(data[0]); | |
1074 | ||
d53839cf GKH |
1075 | dev_dbg(dev, "%s - port_number %d, function %d, data 0x%02X\n", |
1076 | __func__, port_number, function, data[1]); | |
1da177e4 LT |
1077 | |
1078 | if (port_number >= serial->num_ports) { | |
a30fa793 AC |
1079 | dev_err(dev, "%s - bad port number, %d\n", |
1080 | __func__, port_number); | |
1da177e4 LT |
1081 | goto exit; |
1082 | } | |
1083 | ||
1084 | port = serial->port[port_number]; | |
1085 | ||
1086 | tport = usb_get_serial_port_data(port); | |
1087 | if (!tport) | |
1088 | goto exit; | |
1089 | ||
1090 | switch (function) { | |
1091 | case TI_CODE_DATA_ERROR: | |
a30fa793 | 1092 | dev_err(dev, "%s - DATA ERROR, port %d, data 0x%02X\n", |
d53839cf | 1093 | __func__, port_number, data[1]); |
1da177e4 LT |
1094 | break; |
1095 | ||
1096 | case TI_CODE_MODEM_STATUS: | |
1097 | msr = data[1]; | |
d53839cf | 1098 | dev_dbg(dev, "%s - port %d, msr 0x%02X\n", __func__, port_number, msr); |
1da177e4 LT |
1099 | ti_handle_new_msr(tport, msr); |
1100 | break; | |
1101 | ||
1102 | default: | |
a30fa793 AC |
1103 | dev_err(dev, "%s - unknown interrupt code, 0x%02X\n", |
1104 | __func__, data[1]); | |
1da177e4 LT |
1105 | break; |
1106 | } | |
1107 | ||
1108 | exit: | |
52171b48 GKH |
1109 | retval = usb_submit_urb(urb, GFP_ATOMIC); |
1110 | if (retval) | |
1111 | dev_err(dev, "%s - resubmit interrupt urb failed, %d\n", | |
441b62c1 | 1112 | __func__, retval); |
1da177e4 LT |
1113 | } |
1114 | ||
1115 | ||
7d12e780 | 1116 | static void ti_bulk_in_callback(struct urb *urb) |
1da177e4 | 1117 | { |
cdc97792 | 1118 | struct ti_port *tport = urb->context; |
1da177e4 LT |
1119 | struct usb_serial_port *port = tport->tp_port; |
1120 | struct device *dev = &urb->dev->dev; | |
52171b48 GKH |
1121 | int status = urb->status; |
1122 | int retval = 0; | |
1da177e4 | 1123 | |
52171b48 | 1124 | switch (status) { |
1da177e4 LT |
1125 | case 0: |
1126 | break; | |
1127 | case -ECONNRESET: | |
1128 | case -ENOENT: | |
1129 | case -ESHUTDOWN: | |
d53839cf | 1130 | dev_dbg(dev, "%s - urb shutting down, %d\n", __func__, status); |
1da177e4 LT |
1131 | tport->tp_tdev->td_urb_error = 1; |
1132 | wake_up_interruptible(&tport->tp_write_wait); | |
1133 | return; | |
1134 | default: | |
52171b48 | 1135 | dev_err(dev, "%s - nonzero urb status, %d\n", |
a30fa793 | 1136 | __func__, status); |
1da177e4 LT |
1137 | tport->tp_tdev->td_urb_error = 1; |
1138 | wake_up_interruptible(&tport->tp_write_wait); | |
1139 | } | |
1140 | ||
52171b48 | 1141 | if (status == -EPIPE) |
1da177e4 LT |
1142 | goto exit; |
1143 | ||
52171b48 | 1144 | if (status) { |
441b62c1 | 1145 | dev_err(dev, "%s - stopping read!\n", __func__); |
1da177e4 LT |
1146 | return; |
1147 | } | |
1148 | ||
2e124b4a JS |
1149 | if (urb->actual_length) { |
1150 | usb_serial_debug_data(dev, __func__, urb->actual_length, | |
1151 | urb->transfer_buffer); | |
1152 | ||
1153 | if (!tport->tp_is_open) | |
1154 | dev_dbg(dev, "%s - port closed, dropping data\n", | |
1155 | __func__); | |
1156 | else | |
1157 | ti_recv(port, urb->transfer_buffer, urb->actual_length); | |
1158 | spin_lock(&tport->tp_lock); | |
1159 | tport->tp_icount.rx += urb->actual_length; | |
1160 | spin_unlock(&tport->tp_lock); | |
1da177e4 LT |
1161 | } |
1162 | ||
1163 | exit: | |
1164 | /* continue to read unless stopping */ | |
1165 | spin_lock(&tport->tp_lock); | |
5833041f | 1166 | if (tport->tp_read_urb_state == TI_READ_URB_RUNNING) |
52171b48 | 1167 | retval = usb_submit_urb(urb, GFP_ATOMIC); |
5833041f | 1168 | else if (tport->tp_read_urb_state == TI_READ_URB_STOPPING) |
1da177e4 | 1169 | tport->tp_read_urb_state = TI_READ_URB_STOPPED; |
5833041f | 1170 | |
1da177e4 | 1171 | spin_unlock(&tport->tp_lock); |
52171b48 GKH |
1172 | if (retval) |
1173 | dev_err(dev, "%s - resubmit read urb failed, %d\n", | |
441b62c1 | 1174 | __func__, retval); |
1da177e4 LT |
1175 | } |
1176 | ||
1177 | ||
7d12e780 | 1178 | static void ti_bulk_out_callback(struct urb *urb) |
1da177e4 | 1179 | { |
cdc97792 | 1180 | struct ti_port *tport = urb->context; |
1da177e4 | 1181 | struct usb_serial_port *port = tport->tp_port; |
52171b48 | 1182 | int status = urb->status; |
1da177e4 | 1183 | |
1da177e4 LT |
1184 | tport->tp_write_urb_in_use = 0; |
1185 | ||
52171b48 | 1186 | switch (status) { |
1da177e4 LT |
1187 | case 0: |
1188 | break; | |
1189 | case -ECONNRESET: | |
1190 | case -ENOENT: | |
1191 | case -ESHUTDOWN: | |
d53839cf | 1192 | dev_dbg(&port->dev, "%s - urb shutting down, %d\n", __func__, status); |
1da177e4 LT |
1193 | tport->tp_tdev->td_urb_error = 1; |
1194 | wake_up_interruptible(&tport->tp_write_wait); | |
1195 | return; | |
1196 | default: | |
22a416c4 | 1197 | dev_err_console(port, "%s - nonzero urb status, %d\n", |
441b62c1 | 1198 | __func__, status); |
1da177e4 LT |
1199 | tport->tp_tdev->td_urb_error = 1; |
1200 | wake_up_interruptible(&tport->tp_write_wait); | |
1201 | } | |
1202 | ||
1203 | /* send any buffered data */ | |
1204 | ti_send(tport); | |
1205 | } | |
1206 | ||
1207 | ||
2e124b4a JS |
1208 | static void ti_recv(struct usb_serial_port *port, unsigned char *data, |
1209 | int length) | |
1da177e4 LT |
1210 | { |
1211 | int cnt; | |
1212 | ||
1213 | do { | |
05c7cd39 | 1214 | cnt = tty_insert_flip_string(&port->port, data, length); |
33f0f88f | 1215 | if (cnt < length) { |
05c7cd39 | 1216 | dev_err(&port->dev, "%s - dropping data, %d bytes lost\n", |
a30fa793 AC |
1217 | __func__, length - cnt); |
1218 | if (cnt == 0) | |
33f0f88f | 1219 | break; |
1da177e4 | 1220 | } |
2e124b4a | 1221 | tty_flip_buffer_push(&port->port); |
1da177e4 LT |
1222 | data += cnt; |
1223 | length -= cnt; | |
1224 | } while (length > 0); | |
1da177e4 LT |
1225 | } |
1226 | ||
1227 | ||
1228 | static void ti_send(struct ti_port *tport) | |
1229 | { | |
1230 | int count, result; | |
1231 | struct usb_serial_port *port = tport->tp_port; | |
4a90f09b | 1232 | struct tty_struct *tty = tty_port_tty_get(&port->port); /* FIXME */ |
1da177e4 LT |
1233 | unsigned long flags; |
1234 | ||
1da177e4 LT |
1235 | spin_lock_irqsave(&tport->tp_lock, flags); |
1236 | ||
4a90f09b AC |
1237 | if (tport->tp_write_urb_in_use) |
1238 | goto unlock; | |
1da177e4 | 1239 | |
074ef65a | 1240 | count = kfifo_out(&tport->write_fifo, |
1da177e4 LT |
1241 | port->write_urb->transfer_buffer, |
1242 | port->bulk_out_size); | |
1243 | ||
4a90f09b AC |
1244 | if (count == 0) |
1245 | goto unlock; | |
1da177e4 LT |
1246 | |
1247 | tport->tp_write_urb_in_use = 1; | |
1248 | ||
1249 | spin_unlock_irqrestore(&tport->tp_lock, flags); | |
1250 | ||
59d33f2f GKH |
1251 | usb_serial_debug_data(&port->dev, __func__, count, |
1252 | port->write_urb->transfer_buffer); | |
1da177e4 LT |
1253 | |
1254 | usb_fill_bulk_urb(port->write_urb, port->serial->dev, | |
1255 | usb_sndbulkpipe(port->serial->dev, | |
1256 | port->bulk_out_endpointAddress), | |
1257 | port->write_urb->transfer_buffer, count, | |
1258 | ti_bulk_out_callback, tport); | |
1259 | ||
1260 | result = usb_submit_urb(port->write_urb, GFP_ATOMIC); | |
1261 | if (result) { | |
22a416c4 | 1262 | dev_err_console(port, "%s - submit write urb failed, %d\n", |
a30fa793 AC |
1263 | __func__, result); |
1264 | tport->tp_write_urb_in_use = 0; | |
1da177e4 LT |
1265 | /* TODO: reschedule ti_send */ |
1266 | } else { | |
1267 | spin_lock_irqsave(&tport->tp_lock, flags); | |
1268 | tport->tp_icount.tx += count; | |
1269 | spin_unlock_irqrestore(&tport->tp_lock, flags); | |
1270 | } | |
1271 | ||
1272 | /* more room in the buffer for new writes, wakeup */ | |
1273 | if (tty) | |
1274 | tty_wakeup(tty); | |
4a90f09b | 1275 | tty_kref_put(tty); |
1da177e4 | 1276 | wake_up_interruptible(&tport->tp_write_wait); |
4a90f09b AC |
1277 | return; |
1278 | unlock: | |
1279 | spin_unlock_irqrestore(&tport->tp_lock, flags); | |
1280 | tty_kref_put(tty); | |
1281 | return; | |
1da177e4 LT |
1282 | } |
1283 | ||
1284 | ||
1285 | static int ti_set_mcr(struct ti_port *tport, unsigned int mcr) | |
1286 | { | |
04ca89d4 | 1287 | unsigned long flags; |
1da177e4 LT |
1288 | int status; |
1289 | ||
d53839cf | 1290 | status = ti_write_byte(tport->tp_port, tport->tp_tdev, |
1da177e4 LT |
1291 | tport->tp_uart_base_addr + TI_UART_OFFSET_MCR, |
1292 | TI_MCR_RTS | TI_MCR_DTR | TI_MCR_LOOP, mcr); | |
1293 | ||
04ca89d4 | 1294 | spin_lock_irqsave(&tport->tp_lock, flags); |
1da177e4 LT |
1295 | if (!status) |
1296 | tport->tp_shadow_mcr = mcr; | |
04ca89d4 | 1297 | spin_unlock_irqrestore(&tport->tp_lock, flags); |
1da177e4 LT |
1298 | |
1299 | return status; | |
1300 | } | |
1301 | ||
1302 | ||
1303 | static int ti_get_lsr(struct ti_port *tport) | |
1304 | { | |
a30fa793 | 1305 | int size, status; |
1da177e4 LT |
1306 | struct ti_device *tdev = tport->tp_tdev; |
1307 | struct usb_serial_port *port = tport->tp_port; | |
1308 | int port_number = port->number - port->serial->minor; | |
1309 | struct ti_port_status *data; | |
1310 | ||
1da177e4 LT |
1311 | size = sizeof(struct ti_port_status); |
1312 | data = kmalloc(size, GFP_KERNEL); | |
1313 | if (!data) { | |
441b62c1 | 1314 | dev_err(&port->dev, "%s - out of memory\n", __func__); |
1da177e4 LT |
1315 | return -ENOMEM; |
1316 | } | |
1317 | ||
1318 | status = ti_command_in_sync(tdev, TI_GET_PORT_STATUS, | |
1319 | (__u8)(TI_UART1_PORT+port_number), 0, (__u8 *)data, size); | |
1320 | if (status) { | |
a30fa793 AC |
1321 | dev_err(&port->dev, |
1322 | "%s - get port status command failed, %d\n", | |
1323 | __func__, status); | |
1da177e4 LT |
1324 | goto free_data; |
1325 | } | |
1326 | ||
d53839cf | 1327 | dev_dbg(&port->dev, "%s - lsr 0x%02X\n", __func__, data->bLSR); |
1da177e4 LT |
1328 | |
1329 | tport->tp_lsr = data->bLSR; | |
1330 | ||
1331 | free_data: | |
1332 | kfree(data); | |
1333 | return status; | |
1334 | } | |
1335 | ||
1336 | ||
1337 | static int ti_get_serial_info(struct ti_port *tport, | |
1338 | struct serial_struct __user *ret_arg) | |
1339 | { | |
1340 | struct usb_serial_port *port = tport->tp_port; | |
1341 | struct serial_struct ret_serial; | |
1342 | ||
1343 | if (!ret_arg) | |
1344 | return -EFAULT; | |
1345 | ||
1346 | memset(&ret_serial, 0, sizeof(ret_serial)); | |
1347 | ||
1348 | ret_serial.type = PORT_16550A; | |
1349 | ret_serial.line = port->serial->minor; | |
1350 | ret_serial.port = port->number - port->serial->minor; | |
1351 | ret_serial.flags = tport->tp_flags; | |
1352 | ret_serial.xmit_fifo_size = TI_WRITE_BUF_SIZE; | |
1353 | ret_serial.baud_base = tport->tp_tdev->td_is_3410 ? 921600 : 460800; | |
1354 | ret_serial.closing_wait = tport->tp_closing_wait; | |
1355 | ||
1356 | if (copy_to_user(ret_arg, &ret_serial, sizeof(*ret_arg))) | |
1357 | return -EFAULT; | |
1358 | ||
1359 | return 0; | |
1360 | } | |
1361 | ||
1362 | ||
4a90f09b | 1363 | static int ti_set_serial_info(struct tty_struct *tty, struct ti_port *tport, |
1da177e4 LT |
1364 | struct serial_struct __user *new_arg) |
1365 | { | |
1da177e4 LT |
1366 | struct serial_struct new_serial; |
1367 | ||
1368 | if (copy_from_user(&new_serial, new_arg, sizeof(new_serial))) | |
1369 | return -EFAULT; | |
1370 | ||
1371 | tport->tp_flags = new_serial.flags & TI_SET_SERIAL_FLAGS; | |
1da177e4 LT |
1372 | tport->tp_closing_wait = new_serial.closing_wait; |
1373 | ||
1374 | return 0; | |
1375 | } | |
1376 | ||
1377 | ||
1378 | static void ti_handle_new_msr(struct ti_port *tport, __u8 msr) | |
1379 | { | |
1380 | struct async_icount *icount; | |
1381 | struct tty_struct *tty; | |
1382 | unsigned long flags; | |
1383 | ||
d53839cf | 1384 | dev_dbg(&tport->tp_port->dev, "%s - msr 0x%02X\n", __func__, msr); |
1da177e4 LT |
1385 | |
1386 | if (msr & TI_MSR_DELTA_MASK) { | |
1387 | spin_lock_irqsave(&tport->tp_lock, flags); | |
1388 | icount = &tport->tp_icount; | |
1389 | if (msr & TI_MSR_DELTA_CTS) | |
1390 | icount->cts++; | |
1391 | if (msr & TI_MSR_DELTA_DSR) | |
1392 | icount->dsr++; | |
1393 | if (msr & TI_MSR_DELTA_CD) | |
1394 | icount->dcd++; | |
1395 | if (msr & TI_MSR_DELTA_RI) | |
1396 | icount->rng++; | |
fc98ab87 | 1397 | wake_up_interruptible(&tport->tp_port->delta_msr_wait); |
1da177e4 LT |
1398 | spin_unlock_irqrestore(&tport->tp_lock, flags); |
1399 | } | |
1400 | ||
1401 | tport->tp_msr = msr & TI_MSR_MASK; | |
1402 | ||
1403 | /* handle CTS flow control */ | |
4a90f09b | 1404 | tty = tty_port_tty_get(&tport->tp_port->port); |
1da177e4 LT |
1405 | if (tty && C_CRTSCTS(tty)) { |
1406 | if (msr & TI_MSR_CTS) { | |
1407 | tty->hw_stopped = 0; | |
1408 | tty_wakeup(tty); | |
1409 | } else { | |
1410 | tty->hw_stopped = 1; | |
1411 | } | |
1412 | } | |
4a90f09b | 1413 | tty_kref_put(tty); |
1da177e4 LT |
1414 | } |
1415 | ||
1416 | ||
1417 | static void ti_drain(struct ti_port *tport, unsigned long timeout, int flush) | |
1418 | { | |
1419 | struct ti_device *tdev = tport->tp_tdev; | |
1420 | struct usb_serial_port *port = tport->tp_port; | |
1421 | wait_queue_t wait; | |
1da177e4 | 1422 | |
0915f490 | 1423 | spin_lock_irq(&tport->tp_lock); |
1da177e4 LT |
1424 | |
1425 | /* wait for data to drain from the buffer */ | |
1426 | tdev->td_urb_error = 0; | |
1427 | init_waitqueue_entry(&wait, current); | |
1428 | add_wait_queue(&tport->tp_write_wait, &wait); | |
1429 | for (;;) { | |
1430 | set_current_state(TASK_INTERRUPTIBLE); | |
074ef65a | 1431 | if (kfifo_len(&tport->write_fifo) == 0 |
1da177e4 LT |
1432 | || timeout == 0 || signal_pending(current) |
1433 | || tdev->td_urb_error | |
0915f490 | 1434 | || port->serial->disconnected) /* disconnect */ |
1da177e4 | 1435 | break; |
0915f490 | 1436 | spin_unlock_irq(&tport->tp_lock); |
1da177e4 | 1437 | timeout = schedule_timeout(timeout); |
0915f490 | 1438 | spin_lock_irq(&tport->tp_lock); |
1da177e4 LT |
1439 | } |
1440 | set_current_state(TASK_RUNNING); | |
1441 | remove_wait_queue(&tport->tp_write_wait, &wait); | |
1442 | ||
1443 | /* flush any remaining data in the buffer */ | |
1444 | if (flush) | |
074ef65a | 1445 | kfifo_reset_out(&tport->write_fifo); |
1da177e4 | 1446 | |
0915f490 | 1447 | spin_unlock_irq(&tport->tp_lock); |
1da177e4 | 1448 | |
0915f490 | 1449 | mutex_lock(&port->serial->disc_mutex); |
1da177e4 LT |
1450 | /* wait for data to drain from the device */ |
1451 | /* wait for empty tx register, plus 20 ms */ | |
1452 | timeout += jiffies; | |
1453 | tport->tp_lsr &= ~TI_LSR_TX_EMPTY; | |
1454 | while ((long)(jiffies - timeout) < 0 && !signal_pending(current) | |
1455 | && !(tport->tp_lsr&TI_LSR_TX_EMPTY) && !tdev->td_urb_error | |
0915f490 | 1456 | && !port->serial->disconnected) { |
1da177e4 LT |
1457 | if (ti_get_lsr(tport)) |
1458 | break; | |
0915f490 | 1459 | mutex_unlock(&port->serial->disc_mutex); |
1da177e4 | 1460 | msleep_interruptible(20); |
0915f490 | 1461 | mutex_lock(&port->serial->disc_mutex); |
1da177e4 | 1462 | } |
0915f490 | 1463 | mutex_unlock(&port->serial->disc_mutex); |
1da177e4 LT |
1464 | } |
1465 | ||
1466 | ||
1467 | static void ti_stop_read(struct ti_port *tport, struct tty_struct *tty) | |
1468 | { | |
1469 | unsigned long flags; | |
1470 | ||
1471 | spin_lock_irqsave(&tport->tp_lock, flags); | |
1472 | ||
1473 | if (tport->tp_read_urb_state == TI_READ_URB_RUNNING) | |
1474 | tport->tp_read_urb_state = TI_READ_URB_STOPPING; | |
1475 | ||
1476 | spin_unlock_irqrestore(&tport->tp_lock, flags); | |
1477 | } | |
1478 | ||
1479 | ||
1480 | static int ti_restart_read(struct ti_port *tport, struct tty_struct *tty) | |
1481 | { | |
1482 | struct urb *urb; | |
1483 | int status = 0; | |
1484 | unsigned long flags; | |
1485 | ||
1486 | spin_lock_irqsave(&tport->tp_lock, flags); | |
1487 | ||
1488 | if (tport->tp_read_urb_state == TI_READ_URB_STOPPED) { | |
944dc184 | 1489 | tport->tp_read_urb_state = TI_READ_URB_RUNNING; |
1da177e4 | 1490 | urb = tport->tp_port->read_urb; |
944dc184 | 1491 | spin_unlock_irqrestore(&tport->tp_lock, flags); |
1da177e4 | 1492 | urb->context = tport; |
1da177e4 | 1493 | status = usb_submit_urb(urb, GFP_KERNEL); |
944dc184 ON |
1494 | } else { |
1495 | tport->tp_read_urb_state = TI_READ_URB_RUNNING; | |
1496 | spin_unlock_irqrestore(&tport->tp_lock, flags); | |
1da177e4 | 1497 | } |
1da177e4 LT |
1498 | |
1499 | return status; | |
1500 | } | |
1501 | ||
1502 | ||
1503 | static int ti_command_out_sync(struct ti_device *tdev, __u8 command, | |
1504 | __u16 moduleid, __u16 value, __u8 *data, int size) | |
1505 | { | |
1506 | int status; | |
1507 | ||
1508 | status = usb_control_msg(tdev->td_serial->dev, | |
1509 | usb_sndctrlpipe(tdev->td_serial->dev, 0), command, | |
1510 | (USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_OUT), | |
1511 | value, moduleid, data, size, 1000); | |
1512 | ||
1513 | if (status == size) | |
1514 | status = 0; | |
1515 | ||
1516 | if (status > 0) | |
1517 | status = -ECOMM; | |
1518 | ||
1519 | return status; | |
1520 | } | |
1521 | ||
1522 | ||
1523 | static int ti_command_in_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_rcvctrlpipe(tdev->td_serial->dev, 0), command, | |
1530 | (USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_IN), | |
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 | ||
d53839cf GKH |
1543 | static int ti_write_byte(struct usb_serial_port *port, |
1544 | struct ti_device *tdev, unsigned long addr, | |
1545 | __u8 mask, __u8 byte) | |
1da177e4 LT |
1546 | { |
1547 | int status; | |
1548 | unsigned int size; | |
1549 | struct ti_write_data_bytes *data; | |
1da177e4 | 1550 | |
d53839cf GKH |
1551 | dev_dbg(&port->dev, "%s - addr 0x%08lX, mask 0x%02X, byte 0x%02X\n", __func__, |
1552 | addr, mask, byte); | |
1da177e4 LT |
1553 | |
1554 | size = sizeof(struct ti_write_data_bytes) + 2; | |
1555 | data = kmalloc(size, GFP_KERNEL); | |
1556 | if (!data) { | |
d53839cf | 1557 | dev_err(&port->dev, "%s - out of memory\n", __func__); |
1da177e4 LT |
1558 | return -ENOMEM; |
1559 | } | |
1560 | ||
1561 | data->bAddrType = TI_RW_DATA_ADDR_XDATA; | |
1562 | data->bDataType = TI_RW_DATA_BYTE; | |
1563 | data->bDataCounter = 1; | |
1564 | data->wBaseAddrHi = cpu_to_be16(addr>>16); | |
1565 | data->wBaseAddrLo = cpu_to_be16(addr); | |
1566 | data->bData[0] = mask; | |
1567 | data->bData[1] = byte; | |
1568 | ||
1569 | status = ti_command_out_sync(tdev, TI_WRITE_DATA, TI_RAM_PORT, 0, | |
1570 | (__u8 *)data, size); | |
1571 | ||
1572 | if (status < 0) | |
d53839cf | 1573 | dev_err(&port->dev, "%s - failed, %d\n", __func__, status); |
1da177e4 LT |
1574 | |
1575 | kfree(data); | |
1576 | ||
1577 | return status; | |
1578 | } | |
1579 | ||
95da310e AC |
1580 | static int ti_do_download(struct usb_device *dev, int pipe, |
1581 | u8 *buffer, int size) | |
1da177e4 | 1582 | { |
1da177e4 | 1583 | int pos; |
95da310e | 1584 | u8 cs = 0; |
1da177e4 | 1585 | int done; |
1da177e4 | 1586 | struct ti_firmware_header *header; |
87ea8c88 | 1587 | int status = 0; |
95da310e | 1588 | int len; |
a30fa793 AC |
1589 | |
1590 | for (pos = sizeof(struct ti_firmware_header); pos < size; pos++) | |
1da177e4 LT |
1591 | cs = (__u8)(cs + buffer[pos]); |
1592 | ||
1593 | header = (struct ti_firmware_header *)buffer; | |
a30fa793 | 1594 | header->wLength = cpu_to_le16((__u16)(size |
95da310e | 1595 | - sizeof(struct ti_firmware_header))); |
1da177e4 LT |
1596 | header->bCheckSum = cs; |
1597 | ||
d53839cf | 1598 | dev_dbg(&dev->dev, "%s - downloading firmware\n", __func__); |
95da310e AC |
1599 | for (pos = 0; pos < size; pos += done) { |
1600 | len = min(size - pos, TI_DOWNLOAD_MAX_PACKET_SIZE); | |
1601 | status = usb_bulk_msg(dev, pipe, buffer + pos, len, | |
1602 | &done, 1000); | |
1da177e4 LT |
1603 | if (status) |
1604 | break; | |
1605 | } | |
95da310e AC |
1606 | return status; |
1607 | } | |
1da177e4 | 1608 | |
05a3d905 | 1609 | static int ti_download_firmware(struct ti_device *tdev) |
95da310e | 1610 | { |
05a3d905 | 1611 | int status; |
95da310e AC |
1612 | int buffer_size; |
1613 | __u8 *buffer; | |
1614 | struct usb_device *dev = tdev->td_serial->dev; | |
1615 | unsigned int pipe = usb_sndbulkpipe(dev, | |
1616 | tdev->td_serial->port[0]->bulk_out_endpointAddress); | |
1617 | const struct firmware *fw_p; | |
1618 | char buf[32]; | |
1da177e4 | 1619 | |
05a3d905 CA |
1620 | /* try ID specific firmware first, then try generic firmware */ |
1621 | sprintf(buf, "ti_usb-v%04x-p%04x.fw", dev->descriptor.idVendor, | |
1622 | dev->descriptor.idProduct); | |
72b27a07 AR |
1623 | status = request_firmware(&fw_p, buf, &dev->dev); |
1624 | ||
1625 | if (status != 0) { | |
cb7a7c6a CA |
1626 | buf[0] = '\0'; |
1627 | if (dev->descriptor.idVendor == MTS_VENDOR_ID) { | |
1628 | switch (dev->descriptor.idProduct) { | |
1629 | case MTS_CDMA_PRODUCT_ID: | |
1630 | strcpy(buf, "mts_cdma.fw"); | |
1631 | break; | |
1632 | case MTS_GSM_PRODUCT_ID: | |
1633 | strcpy(buf, "mts_gsm.fw"); | |
1634 | break; | |
1635 | case MTS_EDGE_PRODUCT_ID: | |
1636 | strcpy(buf, "mts_edge.fw"); | |
1637 | break; | |
cdc04834 AM |
1638 | case MTS_MT9234MU_PRODUCT_ID: |
1639 | strcpy(buf, "mts_mt9234mu.fw"); | |
1640 | break; | |
1641 | case MTS_MT9234ZBA_PRODUCT_ID: | |
1642 | strcpy(buf, "mts_mt9234zba.fw"); | |
1643 | break; | |
1644 | case MTS_MT9234ZBAOLD_PRODUCT_ID: | |
1645 | strcpy(buf, "mts_mt9234zba.fw"); | |
1646 | break; } | |
cb7a7c6a CA |
1647 | } |
1648 | if (buf[0] == '\0') { | |
1649 | if (tdev->td_is_3410) | |
1650 | strcpy(buf, "ti_3410.fw"); | |
1651 | else | |
1652 | strcpy(buf, "ti_5052.fw"); | |
1653 | } | |
05a3d905 CA |
1654 | status = request_firmware(&fw_p, buf, &dev->dev); |
1655 | } | |
1656 | if (status) { | |
95da310e AC |
1657 | dev_err(&dev->dev, "%s - firmware not found\n", __func__); |
1658 | return -ENOENT; | |
1659 | } | |
1660 | if (fw_p->size > TI_FIRMWARE_BUF_SIZE) { | |
75181f38 | 1661 | dev_err(&dev->dev, "%s - firmware too large %zu\n", __func__, fw_p->size); |
357f45db | 1662 | release_firmware(fw_p); |
95da310e AC |
1663 | return -ENOENT; |
1664 | } | |
1665 | ||
1666 | buffer_size = TI_FIRMWARE_BUF_SIZE + sizeof(struct ti_firmware_header); | |
1667 | buffer = kmalloc(buffer_size, GFP_KERNEL); | |
1668 | if (buffer) { | |
1669 | memcpy(buffer, fw_p->data, fw_p->size); | |
1670 | memset(buffer + fw_p->size, 0xff, buffer_size - fw_p->size); | |
2bcbe4c1 | 1671 | status = ti_do_download(dev, pipe, buffer, fw_p->size); |
95da310e | 1672 | kfree(buffer); |
05a3d905 | 1673 | } else { |
d53839cf | 1674 | dev_dbg(&dev->dev, "%s ENOMEM\n", __func__); |
05a3d905 | 1675 | status = -ENOMEM; |
95da310e AC |
1676 | } |
1677 | release_firmware(fw_p); | |
1da177e4 | 1678 | if (status) { |
a30fa793 AC |
1679 | dev_err(&dev->dev, "%s - error downloading firmware, %d\n", |
1680 | __func__, status); | |
1da177e4 LT |
1681 | return status; |
1682 | } | |
1683 | ||
d53839cf | 1684 | dev_dbg(&dev->dev, "%s - download successful\n", __func__); |
1da177e4 LT |
1685 | |
1686 | return 0; | |
1687 | } |