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USB: cp2101: new device id
[GitHub/mt8127/android_kernel_alcatel_ttab.git] / drivers / usb / serial / option.c
CommitLineData
58cfe911 1/*
14f76cc7 2 USB Driver for GSM modems
58cfe911
MU		 3
4 Copyright (C) 2005 Matthias Urlichs <smurf@smurf.noris.de>
5
6 This driver is free software; you can redistribute it and/or modify
7 it under the terms of Version 2 of the GNU General Public License as
8 published by the Free Software Foundation.
9
10 Portions copied from the Keyspan driver by Hugh Blemings <hugh@blemings.org>
11
b3fdab59 12 History: see the git log.
ba460e48
MU		 13
14 Work sponsored by: Sigos GmbH, Germany <info@sigos.de>
15
14f76cc7
MU		 16 This driver exists because the "normal" serial driver doesn't work too well
17 with GSM modems. Issues:
18 - data loss -- one single Receive URB is not nearly enough
7c1c2f73 19 - nonstandard flow (Option devices) control
14f76cc7
MU		 20 - controlling the baud rate doesn't make sense
21
22 This driver is named "option" because the most common device it's
23 used for is a PC-Card (with an internal OHCI-USB interface, behind
24 which the GSM interface sits), made by Option Inc.
25
26 Some of the "one port" devices actually exhibit multiple USB instances
27 on the USB bus. This is not a bug, these ports are used for different
28 device features.
58cfe911 29*/
ba460e48 30
e37de9e0 31#define DRIVER_VERSION "v0.7.1"
58cfe911 32#define DRIVER_AUTHOR "Matthias Urlichs <smurf@smurf.noris.de>"
14f76cc7 33#define DRIVER_DESC "USB Driver for GSM modems"
58cfe911 34
58cfe911
MU		 35#include <linux/kernel.h>
36#include <linux/jiffies.h>
37#include <linux/errno.h>
38#include <linux/tty.h>
39#include <linux/tty_flip.h>
40#include <linux/module.h>
59c2afa0 41#include <linux/bitops.h>
58cfe911 42#include <linux/usb.h>
a969888c 43#include <linux/usb/serial.h>
58cfe911
MU		 44
45/* Function prototypes */
7bb75aee
AM		 46static int option_open(struct usb_serial_port *port, struct file *filp);
47static void option_close(struct usb_serial_port *port, struct file *filp);
48static int option_startup(struct usb_serial *serial);
49static void option_shutdown(struct usb_serial *serial);
50static void option_rx_throttle(struct usb_serial_port *port);
51static void option_rx_unthrottle(struct usb_serial_port *port);
52static int option_write_room(struct usb_serial_port *port);
58cfe911 53
7d12e780 54static void option_instat_callback(struct urb *urb);
58cfe911 55
7bb75aee
AM		 56static int option_write(struct usb_serial_port *port,
57 const unsigned char *buf, int count);
58cfe911 58
7bb75aee
AM		 59static int option_chars_in_buffer(struct usb_serial_port *port);
60static int option_ioctl(struct usb_serial_port *port, struct file *file,
61 unsigned int cmd, unsigned long arg);
62static void option_set_termios(struct usb_serial_port *port,
606d099c 63 struct ktermios *old);
7bb75aee
AM		 64static void option_break_ctl(struct usb_serial_port *port, int break_state);
65static int option_tiocmget(struct usb_serial_port *port, struct file *file);
66static int option_tiocmset(struct usb_serial_port *port, struct file *file,
67 unsigned int set, unsigned int clear);
68static int option_send_setup(struct usb_serial_port *port);
58cfe911
MU		 69
70/* Vendor and product IDs */
fd978bfa
GKH		 71#define OPTION_VENDOR_ID 0x0AF0
72#define OPTION_PRODUCT_COLT 0x5000
73#define OPTION_PRODUCT_RICOLA 0x6000
74#define OPTION_PRODUCT_RICOLA_LIGHT 0x6100
75#define OPTION_PRODUCT_RICOLA_QUAD 0x6200
76#define OPTION_PRODUCT_RICOLA_QUAD_LIGHT 0x6300
77#define OPTION_PRODUCT_RICOLA_NDIS 0x6050
78#define OPTION_PRODUCT_RICOLA_NDIS_LIGHT 0x6150
79#define OPTION_PRODUCT_RICOLA_NDIS_QUAD 0x6250
80#define OPTION_PRODUCT_RICOLA_NDIS_QUAD_LIGHT 0x6350
81#define OPTION_PRODUCT_COBRA 0x6500
82#define OPTION_PRODUCT_COBRA_BUS 0x6501
83#define OPTION_PRODUCT_VIPER 0x6600
84#define OPTION_PRODUCT_VIPER_BUS 0x6601
85#define OPTION_PRODUCT_GT_MAX_READY 0x6701
86#define OPTION_PRODUCT_GT_MAX 0x6711
87#define OPTION_PRODUCT_FUJI_MODEM_LIGHT 0x6721
88#define OPTION_PRODUCT_FUJI_MODEM_GT 0x6741
89#define OPTION_PRODUCT_FUJI_MODEM_EX 0x6761
90#define OPTION_PRODUCT_FUJI_NETWORK_LIGHT 0x6731
91#define OPTION_PRODUCT_FUJI_NETWORK_GT 0x6751
92#define OPTION_PRODUCT_FUJI_NETWORK_EX 0x6771
93#define OPTION_PRODUCT_KOI_MODEM 0x6800
94#define OPTION_PRODUCT_KOI_NETWORK 0x6811
95#define OPTION_PRODUCT_SCORPION_MODEM 0x6901
96#define OPTION_PRODUCT_SCORPION_NETWORK 0x6911
97#define OPTION_PRODUCT_ETNA_MODEM 0x7001
98#define OPTION_PRODUCT_ETNA_NETWORK 0x7011
99#define OPTION_PRODUCT_ETNA_MODEM_LITE 0x7021
100#define OPTION_PRODUCT_ETNA_MODEM_GT 0x7041
101#define OPTION_PRODUCT_ETNA_MODEM_EX 0x7061
102#define OPTION_PRODUCT_ETNA_NETWORK_LITE 0x7031
103#define OPTION_PRODUCT_ETNA_NETWORK_GT 0x7051
104#define OPTION_PRODUCT_ETNA_NETWORK_EX 0x7071
105#define OPTION_PRODUCT_ETNA_KOI_MODEM 0x7100
106#define OPTION_PRODUCT_ETNA_KOI_NETWORK 0x7111
107
108#define HUAWEI_VENDOR_ID 0x12D1
109#define HUAWEI_PRODUCT_E600 0x1001
110#define HUAWEI_PRODUCT_E220 0x1003
a3209a0e 111#define HUAWEI_PRODUCT_E220BIS 0x1004
fd978bfa
GKH		 112
113#define NOVATELWIRELESS_VENDOR_ID 0x1410
96443218 114#define DELL_VENDOR_ID 0x413C
fd978bfa
GKH		 115
116#define ANYDATA_VENDOR_ID 0x16d5
46269db9
AG		 117#define ANYDATA_PRODUCT_ADU_E100A 0x6501
118#define ANYDATA_PRODUCT_ADU_500A 0x6502
58cfe911 119
3f6e5846
LL		 120#define BANDRICH_VENDOR_ID 0x1A8D
121#define BANDRICH_PRODUCT_C100_1 0x1002
122#define BANDRICH_PRODUCT_C100_2 0x1003
123
58cfe911 124static struct usb_device_id option_ids[] = {
fd978bfa
GKH		 125 { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_COLT) },
126 { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_RICOLA) },
127 { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_RICOLA_LIGHT) },
128 { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_RICOLA_QUAD) },
129 { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_RICOLA_QUAD_LIGHT) },
130 { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_RICOLA_NDIS) },
131 { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_RICOLA_NDIS_LIGHT) },
132 { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_RICOLA_NDIS_QUAD) },
133 { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_RICOLA_NDIS_QUAD_LIGHT) },
14f76cc7 134 { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_COBRA) },
fd978bfa
GKH		 135 { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_COBRA_BUS) },
136 { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_VIPER) },
137 { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_VIPER_BUS) },
138 { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_GT_MAX_READY) },
139 { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_GT_MAX) },
140 { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_FUJI_MODEM_LIGHT) },
141 { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_FUJI_MODEM_GT) },
142 { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_FUJI_MODEM_EX) },
143 { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_FUJI_NETWORK_LIGHT) },
144 { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_FUJI_NETWORK_GT) },
145 { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_FUJI_NETWORK_EX) },
146 { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_KOI_MODEM) },
147 { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_KOI_NETWORK) },
148 { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_SCORPION_MODEM) },
149 { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_SCORPION_NETWORK) },
150 { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_ETNA_MODEM) },
151 { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_ETNA_NETWORK) },
152 { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_ETNA_MODEM_LITE) },
153 { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_ETNA_MODEM_GT) },
154 { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_ETNA_MODEM_EX) },
155 { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_ETNA_NETWORK_LITE) },
156 { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_ETNA_NETWORK_GT) },
157 { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_ETNA_NETWORK_EX) },
158 { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_ETNA_KOI_MODEM) },
159 { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_ETNA_KOI_NETWORK) },
b6137383 160 { USB_DEVICE(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E600) },
ab195890 161 { USB_DEVICE(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E220) },
a3209a0e 162 { USB_DEVICE(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E220BIS) },
69806d56
GKH		 163 { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, 0x1100) }, /* Novatel Merlin XS620/S640 */
164 { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, 0x1110) }, /* Novatel Merlin S620 */
165 { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, 0x1120) }, /* Novatel Merlin EX720 */
166 { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, 0x1130) }, /* Novatel Merlin S720 */
167 { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, 0x1400) }, /* Novatel U730 */
168 { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, 0x1410) }, /* Novatel U740 */
169 { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, 0x1420) }, /* Novatel EU870 */
170 { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, 0x1430) }, /* Novatel Merlin XU870 HSDPA/3G */
69806d56
GKH		 171 { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, 0x2100) }, /* Novatel EV620 CDMA/EV-DO */
172 { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, 0x2110) }, /* Novatel Merlin ES620 / Merlin ES720 / Ovation U720 */
173 { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, 0x2130) }, /* Novatel Merlin ES620 SM Bus */
174 { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, 0x2410) }, /* Novatel EU740 */
3657f6c0
GKH		 175 { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, 0x4100) }, /* Novatel U727 */
176 { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, 0x4400) }, /* Novatel MC950 */
96443218
FL		 177 { USB_DEVICE(DELL_VENDOR_ID, 0x8114) }, /* Dell Wireless 5700 Mobile Broadband CDMA/EVDO Mini-Card == Novatel Expedite EV620 CDMA/EV-DO */
178 { USB_DEVICE(DELL_VENDOR_ID, 0x8115) }, /* Dell Wireless 5500 Mobile Broadband HSDPA Mini-Card == Novatel Expedite EU740 HSDPA/3G */
179 { USB_DEVICE(DELL_VENDOR_ID, 0x8116) }, /* Dell Wireless 5505 Mobile Broadband HSDPA Mini-Card == Novatel Expedite EU740 HSDPA/3G */
180 { USB_DEVICE(DELL_VENDOR_ID, 0x8117) }, /* Dell Wireless 5700 Mobile Broadband CDMA/EVDO ExpressCard == Novatel Merlin XV620 CDMA/EV-DO */
181 { USB_DEVICE(DELL_VENDOR_ID, 0x8118) }, /* Dell Wireless 5510 Mobile Broadband HSDPA ExpressCard == Novatel Merlin XU870 HSDPA/3G */
182 { USB_DEVICE(DELL_VENDOR_ID, 0x8128) }, /* Dell Wireless 5700 Mobile Broadband CDMA/EVDO Mini-Card == Novatel Expedite E720 CDMA/EV-DO */
2c4cd1f1 183 { USB_DEVICE(DELL_VENDOR_ID, 0x8137) }, /* Dell Wireless HSDPA 5520 */
46269db9
AG		 184 { USB_DEVICE(ANYDATA_VENDOR_ID, ANYDATA_PRODUCT_ADU_E100A) },
185 { USB_DEVICE(ANYDATA_VENDOR_ID, ANYDATA_PRODUCT_ADU_500A) },
3f6e5846
LL		 186 { USB_DEVICE(BANDRICH_VENDOR_ID, BANDRICH_PRODUCT_C100_1) },
187 { USB_DEVICE(BANDRICH_VENDOR_ID, BANDRICH_PRODUCT_C100_2) },
14f76cc7
MU		 188 { } /* Terminating entry */
189};
58cfe911
MU		 190MODULE_DEVICE_TABLE(usb, option_ids);
191
192static struct usb_driver option_driver = {
58cfe911
MU		 193 .name = "option",
194 .probe = usb_serial_probe,
195 .disconnect = usb_serial_disconnect,
196 .id_table = option_ids,
ba9dc657 197 .no_dynamic_id = 1,
58cfe911
MU		 198};
199
c30fe7f7 200/* The card has three separate interfaces, which the serial driver
58cfe911
MU		 201 * recognizes separately, thus num_port=1.
202 */
14f76cc7
MU		 203
204static struct usb_serial_driver option_1port_device = {
205 .driver = {
206 .owner = THIS_MODULE,
02b2ac5b 207 .name = "option1",
14f76cc7
MU		 208 },
209 .description = "GSM modem (1-port)",
d9b1b787 210 .usb_driver = &option_driver,
b656b2cb 211 .id_table = option_ids,
ba460e48
MU		 212 .num_interrupt_in = NUM_DONT_CARE,
213 .num_bulk_in = NUM_DONT_CARE,
214 .num_bulk_out = NUM_DONT_CARE,
14f76cc7 215 .num_ports = 1,
ba460e48
MU		 216 .open = option_open,
217 .close = option_close,
218 .write = option_write,
219 .write_room = option_write_room,
220 .chars_in_buffer = option_chars_in_buffer,
221 .throttle = option_rx_throttle,
222 .unthrottle = option_rx_unthrottle,
223 .ioctl = option_ioctl,
224 .set_termios = option_set_termios,
225 .break_ctl = option_break_ctl,
226 .tiocmget = option_tiocmget,
227 .tiocmset = option_tiocmset,
228 .attach = option_startup,
229 .shutdown = option_shutdown,
230 .read_int_callback = option_instat_callback,
58cfe911
MU		 231};
232
ba460e48 233#ifdef CONFIG_USB_DEBUG
58cfe911 234static int debug;
ba460e48
MU		 235#else
236#define debug 0
237#endif
238
58cfe911
MU		 239/* per port private data */
240
ba460e48
MU		 241#define N_IN_URB 4
242#define N_OUT_URB 1
b27c73dc 243#define IN_BUFLEN 4096
ba460e48 244#define OUT_BUFLEN 128
58cfe911
MU		 245
246struct option_port_private {
247 /* Input endpoints and buffer for this port */
ba460e48
MU		 248 struct urb *in_urbs[N_IN_URB];
249 char in_buffer[N_IN_URB][IN_BUFLEN];
58cfe911 250 /* Output endpoints and buffer for this port */
ba460e48
MU		 251 struct urb *out_urbs[N_OUT_URB];
252 char out_buffer[N_OUT_URB][OUT_BUFLEN];
59c2afa0 253 unsigned long out_busy; /* Bit vector of URBs in use */
58cfe911
MU		 254
255 /* Settings for the port */
ba460e48
MU		 256 int rts_state; /* Handshaking pins (outputs) */
257 int dtr_state;
258 int cts_state; /* Handshaking pins (inputs) */
259 int dsr_state;
260 int dcd_state;
261 int ri_state;
262
263 unsigned long tx_start_time[N_OUT_URB];
58cfe911
MU		 264};
265
58cfe911 266/* Functions used by new usb-serial code. */
7bb75aee 267static int __init option_init(void)
58cfe911
MU		 268{
269 int retval;
14f76cc7
MU		 270 retval = usb_serial_register(&option_1port_device);
271 if (retval)
272 goto failed_1port_device_register;
58cfe911
MU		 273 retval = usb_register(&option_driver);
274 if (retval)
275 goto failed_driver_register;
276
277 info(DRIVER_DESC ": " DRIVER_VERSION);
278
279 return 0;
280
281failed_driver_register:
14f76cc7
MU		 282 usb_serial_deregister (&option_1port_device);
283failed_1port_device_register:
58cfe911
MU		 284 return retval;
285}
286
7bb75aee 287static void __exit option_exit(void)
58cfe911
MU		 288{
289 usb_deregister (&option_driver);
14f76cc7 290 usb_serial_deregister (&option_1port_device);
58cfe911
MU		 291}
292
293module_init(option_init);
294module_exit(option_exit);
295
7bb75aee 296static void option_rx_throttle(struct usb_serial_port *port)
58cfe911
MU		 297{
298 dbg("%s", __FUNCTION__);
299}
300
7bb75aee 301static void option_rx_unthrottle(struct usb_serial_port *port)
58cfe911
MU		 302{
303 dbg("%s", __FUNCTION__);
304}
305
7bb75aee 306static void option_break_ctl(struct usb_serial_port *port, int break_state)
58cfe911
MU		 307{
308 /* Unfortunately, I don't know how to send a break */
ba460e48 309 dbg("%s", __FUNCTION__);
58cfe911
MU		 310}
311
7bb75aee 312static void option_set_termios(struct usb_serial_port *port,
606d099c 313 struct ktermios *old_termios)
58cfe911
MU		 314{
315 dbg("%s", __FUNCTION__);
e650d8ae
AC		 316 /* Doesn't support option setting */
317 tty_termios_copy_hw(port->tty->termios, old_termios);
58cfe911
MU		 318 option_send_setup(port);
319}
320
7bb75aee 321static int option_tiocmget(struct usb_serial_port *port, struct file *file)
58cfe911 322{
ba460e48
MU		 323 unsigned int value;
324 struct option_port_private *portdata;
58cfe911
MU		 325
326 portdata = usb_get_serial_port_data(port);
327
328 value = ((portdata->rts_state) ? TIOCM_RTS : 0) |
329 ((portdata->dtr_state) ? TIOCM_DTR : 0) |
330 ((portdata->cts_state) ? TIOCM_CTS : 0) |
331 ((portdata->dsr_state) ? TIOCM_DSR : 0) |
332 ((portdata->dcd_state) ? TIOCM_CAR : 0) |
333 ((portdata->ri_state) ? TIOCM_RNG : 0);
334
335 return value;
336}
337
7bb75aee
AM		 338static int option_tiocmset(struct usb_serial_port *port, struct file *file,
339 unsigned int set, unsigned int clear)
58cfe911 340{
ba460e48 341 struct option_port_private *portdata;
58cfe911
MU		 342
343 portdata = usb_get_serial_port_data(port);
344
345 if (set & TIOCM_RTS)
346 portdata->rts_state = 1;
347 if (set & TIOCM_DTR)
348 portdata->dtr_state = 1;
349
350 if (clear & TIOCM_RTS)
351 portdata->rts_state = 0;
352 if (clear & TIOCM_DTR)
353 portdata->dtr_state = 0;
354 return option_send_setup(port);
355}
356
7bb75aee
AM		 357static int option_ioctl(struct usb_serial_port *port, struct file *file,
358 unsigned int cmd, unsigned long arg)
58cfe911
MU		 359{
360 return -ENOIOCTLCMD;
361}
362
363/* Write */
7bb75aee
AM		 364static int option_write(struct usb_serial_port *port,
365 const unsigned char *buf, int count)
58cfe911 366{
ba460e48
MU		 367 struct option_port_private *portdata;
368 int i;
369 int left, todo;
370 struct urb *this_urb = NULL; /* spurious */
371 int err;
58cfe911
MU		 372
373 portdata = usb_get_serial_port_data(port);
374
375 dbg("%s: write (%d chars)", __FUNCTION__, count);
376
58cfe911
MU		 377 i = 0;
378 left = count;
ba460e48 379 for (i=0; left > 0 && i < N_OUT_URB; i++) {
58cfe911
MU		 380 todo = left;
381 if (todo > OUT_BUFLEN)
382 todo = OUT_BUFLEN;
383
ba460e48 384 this_urb = portdata->out_urbs[i];
59c2afa0 385 if (test_and_set_bit(i, &portdata->out_busy)) {
7bb75aee
AM		 386 if (time_before(jiffies,
387 portdata->tx_start_time[i] + 10 * HZ))
58cfe911 388 continue;
58cfe911 389 usb_unlink_urb(this_urb);
ba460e48 390 continue;
58cfe911 391 }
ba460e48 392 if (this_urb->status != 0)
7bb75aee
AM		 393 dbg("usb_write %p failed (err=%d)",
394 this_urb, this_urb->status);
58cfe911 395
7bb75aee
AM		 396 dbg("%s: endpoint %d buf %d", __FUNCTION__,
397 usb_pipeendpoint(this_urb->pipe), i);
58cfe911 398
ba460e48 399 /* send the data */
58cfe911 400 memcpy (this_urb->transfer_buffer, buf, todo);
58cfe911
MU		 401 this_urb->transfer_buffer_length = todo;
402
58cfe911
MU		 403 this_urb->dev = port->serial->dev;
404 err = usb_submit_urb(this_urb, GFP_ATOMIC);
405 if (err) {
7bb75aee
AM		 406 dbg("usb_submit_urb %p (write bulk) failed "
407 "(%d, has %d)", this_urb,
408 err, this_urb->status);
59c2afa0 409 clear_bit(i, &portdata->out_busy);
58cfe911
MU		 410 continue;
411 }
412 portdata->tx_start_time[i] = jiffies;
413 buf += todo;
414 left -= todo;
415 }
416
417 count -= left;
58cfe911
MU		 418 dbg("%s: wrote (did %d)", __FUNCTION__, count);
419 return count;
420}
421
7d12e780 422static void option_indat_callback(struct urb *urb)
58cfe911 423{
33f0f88f 424 int err;
58cfe911
MU		 425 int endpoint;
426 struct usb_serial_port *port;
427 struct tty_struct *tty;
428 unsigned char *data = urb->transfer_buffer;
d6977b51 429 int status = urb->status;
58cfe911
MU		 430
431 dbg("%s: %p", __FUNCTION__, urb);
432
433 endpoint = usb_pipeendpoint(urb->pipe);
434 port = (struct usb_serial_port *) urb->context;
435
d6977b51 436 if (status) {
58cfe911 437 dbg("%s: nonzero status: %d on endpoint %02x.",
d6977b51 438 __FUNCTION__, status, endpoint);
58cfe911
MU		 439 } else {
440 tty = port->tty;
441 if (urb->actual_length) {
33f0f88f
AC		 442 tty_buffer_request_room(tty, urb->actual_length);
443 tty_insert_flip_string(tty, data, urb->actual_length);
58cfe911
MU		 444 tty_flip_buffer_push(tty);
445 } else {
446 dbg("%s: empty read urb received", __FUNCTION__);
447 }
448
449 /* Resubmit urb so we continue receiving */
d6977b51 450 if (port->open_count && status != -ESHUTDOWN) {
58cfe911
MU		 451 err = usb_submit_urb(urb, GFP_ATOMIC);
452 if (err)
7bb75aee
AM		 453 printk(KERN_ERR "%s: resubmit read urb failed. "
454 "(%d)", __FUNCTION__, err);
58cfe911
MU		 455 }
456 }
457 return;
458}
459
7d12e780 460static void option_outdat_callback(struct urb *urb)
58cfe911
MU		 461{
462 struct usb_serial_port *port;
59c2afa0
AS		 463 struct option_port_private *portdata;
464 int i;
58cfe911
MU		 465
466 dbg("%s", __FUNCTION__);
467
468 port = (struct usb_serial_port *) urb->context;
469
cf2c7481 470 usb_serial_port_softint(port);
59c2afa0
AS		 471
472 portdata = usb_get_serial_port_data(port);
473 for (i = 0; i < N_OUT_URB; ++i) {
474 if (portdata->out_urbs[i] == urb) {
475 smp_mb__before_clear_bit();
476 clear_bit(i, &portdata->out_busy);
477 break;
478 }
479 }
58cfe911
MU		 480}
481
7d12e780 482static void option_instat_callback(struct urb *urb)
58cfe911
MU		 483{
484 int err;
d6977b51 485 int status = urb->status;
58cfe911
MU		 486 struct usb_serial_port *port = (struct usb_serial_port *) urb->context;
487 struct option_port_private *portdata = usb_get_serial_port_data(port);
488 struct usb_serial *serial = port->serial;
489
490 dbg("%s", __FUNCTION__);
491 dbg("%s: urb %p port %p has data %p", __FUNCTION__,urb,port,portdata);
492
d6977b51 493 if (status == 0) {
58cfe911
MU		 494 struct usb_ctrlrequest *req_pkt =
495 (struct usb_ctrlrequest *)urb->transfer_buffer;
496
497 if (!req_pkt) {
498 dbg("%s: NULL req_pkt\n", __FUNCTION__);
499 return;
500 }
7bb75aee
AM		 501 if ((req_pkt->bRequestType == 0xA1) &&
502 (req_pkt->bRequest == 0x20)) {
58cfe911
MU		 503 int old_dcd_state;
504 unsigned char signals = *((unsigned char *)
7bb75aee
AM		 505 urb->transfer_buffer +
506 sizeof(struct usb_ctrlrequest));
58cfe911
MU		 507
508 dbg("%s: signal x%x", __FUNCTION__, signals);
509
510 old_dcd_state = portdata->dcd_state;
511 portdata->cts_state = 1;
512 portdata->dcd_state = ((signals & 0x01) ? 1 : 0);
513 portdata->dsr_state = ((signals & 0x02) ? 1 : 0);
514 portdata->ri_state = ((signals & 0x08) ? 1 : 0);
515
7bb75aee
AM		 516 if (port->tty && !C_CLOCAL(port->tty) &&
517 old_dcd_state && !portdata->dcd_state)
58cfe911 518 tty_hangup(port->tty);
7bb75aee
AM		 519 } else {
520 dbg("%s: type %x req %x", __FUNCTION__,
521 req_pkt->bRequestType,req_pkt->bRequest);
522 }
58cfe911 523 } else
d6977b51 524 dbg("%s: error %d", __FUNCTION__, status);
58cfe911
MU		 525
526 /* Resubmit urb so we continue receiving IRQ data */
d6977b51 527 if (status != -ESHUTDOWN) {
58cfe911
MU		 528 urb->dev = serial->dev;
529 err = usb_submit_urb(urb, GFP_ATOMIC);
530 if (err)
7bb75aee
AM		 531 dbg("%s: resubmit intr urb failed. (%d)",
532 __FUNCTION__, err);
58cfe911
MU		 533 }
534}
535
7bb75aee 536static int option_write_room(struct usb_serial_port *port)
58cfe911
MU		 537{
538 struct option_port_private *portdata;
539 int i;
540 int data_len = 0;
541 struct urb *this_urb;
542
543 portdata = usb_get_serial_port_data(port);
544
ba460e48 545 for (i=0; i < N_OUT_URB; i++) {
58cfe911 546 this_urb = portdata->out_urbs[i];
59c2afa0 547 if (this_urb && !test_bit(i, &portdata->out_busy))
58cfe911 548 data_len += OUT_BUFLEN;
ba460e48 549 }
58cfe911
MU		 550
551 dbg("%s: %d", __FUNCTION__, data_len);
552 return data_len;
553}
554
7bb75aee 555static int option_chars_in_buffer(struct usb_serial_port *port)
58cfe911
MU		 556{
557 struct option_port_private *portdata;
558 int i;
559 int data_len = 0;
560 struct urb *this_urb;
561
562 portdata = usb_get_serial_port_data(port);
563
ba460e48 564 for (i=0; i < N_OUT_URB; i++) {
58cfe911 565 this_urb = portdata->out_urbs[i];
59c2afa0 566 if (this_urb && test_bit(i, &portdata->out_busy))
58cfe911 567 data_len += this_urb->transfer_buffer_length;
ba460e48 568 }
58cfe911
MU		 569 dbg("%s: %d", __FUNCTION__, data_len);
570 return data_len;
571}
572
7bb75aee 573static int option_open(struct usb_serial_port *port, struct file *filp)
58cfe911 574{
ba460e48
MU		 575 struct option_port_private *portdata;
576 struct usb_serial *serial = port->serial;
577 int i, err;
578 struct urb *urb;
58cfe911
MU		 579
580 portdata = usb_get_serial_port_data(port);
581
582 dbg("%s", __FUNCTION__);
583
584 /* Set some sane defaults */
585 portdata->rts_state = 1;
586 portdata->dtr_state = 1;
587
588 /* Reset low level data toggle and start reading from endpoints */
589 for (i = 0; i < N_IN_URB; i++) {
590 urb = portdata->in_urbs[i];
591 if (! urb)
592 continue;
593 if (urb->dev != serial->dev) {
7bb75aee
AM		 594 dbg("%s: dev %p != %p", __FUNCTION__,
595 urb->dev, serial->dev);
58cfe911
MU		 596 continue;
597 }
598
7bb75aee
AM		 599 /*
600 * make sure endpoint data toggle is synchronized with the
601 * device
602 */
58cfe911
MU		 603 usb_clear_halt(urb->dev, urb->pipe);
604
605 err = usb_submit_urb(urb, GFP_KERNEL);
606 if (err) {
7bb75aee
AM		 607 dbg("%s: submit urb %d failed (%d) %d",
608 __FUNCTION__, i, err,
58cfe911
MU		 609 urb->transfer_buffer_length);
610 }
611 }
612
613 /* Reset low level data toggle on out endpoints */
614 for (i = 0; i < N_OUT_URB; i++) {
615 urb = portdata->out_urbs[i];
616 if (! urb)
617 continue;
618 urb->dev = serial->dev;
7bb75aee
AM		 619 /* usb_settoggle(urb->dev, usb_pipeendpoint(urb->pipe),
620 usb_pipeout(urb->pipe), 0); */
58cfe911
MU		 621 }
622
623 port->tty->low_latency = 1;
624
625 option_send_setup(port);
626
627 return (0);
628}
629
7bb75aee 630static void option_close(struct usb_serial_port *port, struct file *filp)
58cfe911 631{
ba460e48
MU		 632 int i;
633 struct usb_serial *serial = port->serial;
634 struct option_port_private *portdata;
58cfe911
MU		 635
636 dbg("%s", __FUNCTION__);
637 portdata = usb_get_serial_port_data(port);
638
639 portdata->rts_state = 0;
640 portdata->dtr_state = 0;
641
642 if (serial->dev) {
643 option_send_setup(port);
644
645 /* Stop reading/writing urbs */
646 for (i = 0; i < N_IN_URB; i++)
7d28e74b 647 usb_kill_urb(portdata->in_urbs[i]);
58cfe911 648 for (i = 0; i < N_OUT_URB; i++)
7d28e74b 649 usb_kill_urb(portdata->out_urbs[i]);
58cfe911
MU		 650 }
651 port->tty = NULL;
652}
653
58cfe911 654/* Helper functions used by option_setup_urbs */
7bb75aee
AM		 655static struct urb *option_setup_urb(struct usb_serial *serial, int endpoint,
656 int dir, void *ctx, char *buf, int len,
7d12e780 657 void (*callback)(struct urb *))
58cfe911
MU		 658{
659 struct urb *urb;
660
661 if (endpoint == -1)
662 return NULL; /* endpoint not needed */
663
664 urb = usb_alloc_urb(0, GFP_KERNEL); /* No ISO */
665 if (urb == NULL) {
666 dbg("%s: alloc for endpoint %d failed.", __FUNCTION__, endpoint);
667 return NULL;
668 }
669
670 /* Fill URB using supplied data. */
671 usb_fill_bulk_urb(urb, serial->dev,
672 usb_sndbulkpipe(serial->dev, endpoint) | dir,
673 buf, len, callback, ctx);
674
675 return urb;
676}
677
678/* Setup urbs */
7bb75aee 679static void option_setup_urbs(struct usb_serial *serial)
58cfe911 680{
14f76cc7 681 int i,j;
ba460e48
MU		 682 struct usb_serial_port *port;
683 struct option_port_private *portdata;
58cfe911
MU		 684
685 dbg("%s", __FUNCTION__);
686
14f76cc7
MU		 687 for (i = 0; i < serial->num_ports; i++) {
688 port = serial->port[i];
689 portdata = usb_get_serial_port_data(port);
58cfe911
MU		 690
691 /* Do indat endpoints first */
14f76cc7
MU		 692 for (j = 0; j < N_IN_URB; ++j) {
693 portdata->in_urbs[j] = option_setup_urb (serial,
694 port->bulk_in_endpointAddress, USB_DIR_IN, port,
695 portdata->in_buffer[j], IN_BUFLEN, option_indat_callback);
696 }
58cfe911 697
14f76cc7
MU		 698 /* outdat endpoints */
699 for (j = 0; j < N_OUT_URB; ++j) {
700 portdata->out_urbs[j] = option_setup_urb (serial,
701 port->bulk_out_endpointAddress, USB_DIR_OUT, port,
702 portdata->out_buffer[j], OUT_BUFLEN, option_outdat_callback);
703 }
58cfe911
MU		 704 }
705}
706
7bb75aee 707static int option_send_setup(struct usb_serial_port *port)
58cfe911
MU		 708{
709 struct usb_serial *serial = port->serial;
710 struct option_port_private *portdata;
711
712 dbg("%s", __FUNCTION__);
713
8c152713
MAA		 714 if (port->number != 0)
715 return 0;
716
58cfe911
MU		 717 portdata = usb_get_serial_port_data(port);
718
719 if (port->tty) {
720 int val = 0;
721 if (portdata->dtr_state)
722 val |= 0x01;
723 if (portdata->rts_state)
724 val |= 0x02;
725
7bb75aee
AM		 726 return usb_control_msg(serial->dev,
727 usb_rcvctrlpipe(serial->dev, 0),
728 0x22,0x21,val,0,NULL,0,USB_CTRL_SET_TIMEOUT);
58cfe911
MU		 729 }
730
731 return 0;
732}
733
7bb75aee 734static int option_startup(struct usb_serial *serial)
58cfe911 735{
ba460e48
MU		 736 int i, err;
737 struct usb_serial_port *port;
738 struct option_port_private *portdata;
58cfe911
MU		 739
740 dbg("%s", __FUNCTION__);
741
742 /* Now setup per port private data */
743 for (i = 0; i < serial->num_ports; i++) {
744 port = serial->port[i];
80b6ca48 745 portdata = kzalloc(sizeof(*portdata), GFP_KERNEL);
58cfe911 746 if (!portdata) {
7bb75aee
AM		 747 dbg("%s: kmalloc for option_port_private (%d) failed!.",
748 __FUNCTION__, i);
58cfe911
MU		 749 return (1);
750 }
58cfe911
MU		 751
752 usb_set_serial_port_data(port, portdata);
753
754 if (! port->interrupt_in_urb)
755 continue;
756 err = usb_submit_urb(port->interrupt_in_urb, GFP_KERNEL);
757 if (err)
7bb75aee
AM		 758 dbg("%s: submit irq_in urb failed %d",
759 __FUNCTION__, err);
58cfe911
MU		 760 }
761
762 option_setup_urbs(serial);
763
764 return (0);
765}
766
7bb75aee 767static void option_shutdown(struct usb_serial *serial)
58cfe911 768{
ba460e48
MU		 769 int i, j;
770 struct usb_serial_port *port;
771 struct option_port_private *portdata;
58cfe911
MU		 772
773 dbg("%s", __FUNCTION__);
774
775 /* Stop reading/writing urbs */
776 for (i = 0; i < serial->num_ports; ++i) {
777 port = serial->port[i];
778 portdata = usb_get_serial_port_data(port);
779 for (j = 0; j < N_IN_URB; j++)
7d28e74b 780 usb_kill_urb(portdata->in_urbs[j]);
58cfe911 781 for (j = 0; j < N_OUT_URB; j++)
7d28e74b 782 usb_kill_urb(portdata->out_urbs[j]);
58cfe911
MU		 783 }
784
785 /* Now free them */
786 for (i = 0; i < serial->num_ports; ++i) {
787 port = serial->port[i];
788 portdata = usb_get_serial_port_data(port);
789
790 for (j = 0; j < N_IN_URB; j++) {
791 if (portdata->in_urbs[j]) {
792 usb_free_urb(portdata->in_urbs[j]);
793 portdata->in_urbs[j] = NULL;
794 }
795 }
796 for (j = 0; j < N_OUT_URB; j++) {
797 if (portdata->out_urbs[j]) {
798 usb_free_urb(portdata->out_urbs[j]);
799 portdata->out_urbs[j] = NULL;
800 }
801 }
802 }
803
804 /* Now free per port private data */
805 for (i = 0; i < serial->num_ports; i++) {
806 port = serial->port[i];
807 kfree(usb_get_serial_port_data(port));
808 }
809}
810
811MODULE_AUTHOR(DRIVER_AUTHOR);
812MODULE_DESCRIPTION(DRIVER_DESC);
813MODULE_VERSION(DRIVER_VERSION);
814MODULE_LICENSE("GPL");
815
ba460e48 816#ifdef CONFIG_USB_DEBUG
58cfe911
MU		 817module_param(debug, bool, S_IRUGO | S_IWUSR);
818MODULE_PARM_DESC(debug, "Debug messages");
ba460e48 819#endif
58cfe911 820
kernel source for telekom puls (alcatel/mediatek)