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USB: option: Add Kyocera KPC680 ids
[linux-2.6/s3c2410-cpufreq.git] / drivers / usb / serial / option.c
blobfbc5aeec35d1c63950cd2b16ebcea84955f303e3
1 /*
2 USB Driver for GSM modems
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
12 History: see the git log.
13
14 Work sponsored by: Sigos GmbH, Germany <info@sigos.de>
15
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
19 - nonstandard flow (Option devices) control
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.
29 */
30
31 #define DRIVER_VERSION "v0.7.1"
32 #define DRIVER_AUTHOR "Matthias Urlichs <smurf@smurf.noris.de>"
33 #define DRIVER_DESC "USB Driver for GSM modems"
34
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>
41 #include <linux/bitops.h>
42 #include <linux/usb.h>
43 #include <linux/usb/serial.h>
44
45 /* Function prototypes */
46 static int option_open(struct usb_serial_port *port, struct file *filp);
47 static void option_close(struct usb_serial_port *port, struct file *filp);
48 static int option_startup(struct usb_serial *serial);
49 static void option_shutdown(struct usb_serial *serial);
50 static void option_rx_throttle(struct usb_serial_port *port);
51 static void option_rx_unthrottle(struct usb_serial_port *port);
52 static int option_write_room(struct usb_serial_port *port);
53
54 static void option_instat_callback(struct urb *urb);
55
56 static int option_write(struct usb_serial_port *port,
57 const unsigned char *buf, int count);
58
59 static int option_chars_in_buffer(struct usb_serial_port *port);
60 static int option_ioctl(struct usb_serial_port *port, struct file *file,
61 unsigned int cmd, unsigned long arg);
62 static void option_set_termios(struct usb_serial_port *port,
63 struct ktermios *old);
64 static void option_break_ctl(struct usb_serial_port *port, int break_state);
65 static int option_tiocmget(struct usb_serial_port *port, struct file *file);
66 static int option_tiocmset(struct usb_serial_port *port, struct file *file,
67 unsigned int set, unsigned int clear);
68 static int option_send_setup(struct usb_serial_port *port);
69
70 /* Vendor and product IDs */
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
111 #define HUAWEI_PRODUCT_E220BIS 0x1004
112
113 #define NOVATELWIRELESS_VENDOR_ID 0x1410
114 #define DELL_VENDOR_ID 0x413C
115
116 #define KYOCERA_VENDOR_ID 0x0c88
117 #define KYOCERA_PRODUCT_KPC680 0x180a
118
119 #define ANYDATA_VENDOR_ID 0x16d5
120 #define ANYDATA_PRODUCT_ADU_E100A 0x6501
121 #define ANYDATA_PRODUCT_ADU_500A 0x6502
122
123 #define BANDRICH_VENDOR_ID 0x1A8D
124 #define BANDRICH_PRODUCT_C100_1 0x1002
125 #define BANDRICH_PRODUCT_C100_2 0x1003
126
127 static struct usb_device_id option_ids[] = {
128 { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_COLT) },
129 { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_RICOLA) },
130 { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_RICOLA_LIGHT) },
131 { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_RICOLA_QUAD) },
132 { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_RICOLA_QUAD_LIGHT) },
133 { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_RICOLA_NDIS) },
134 { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_RICOLA_NDIS_LIGHT) },
135 { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_RICOLA_NDIS_QUAD) },
136 { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_RICOLA_NDIS_QUAD_LIGHT) },
137 { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_COBRA) },
138 { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_COBRA_BUS) },
139 { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_VIPER) },
140 { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_VIPER_BUS) },
141 { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_GT_MAX_READY) },
142 { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_GT_MAX) },
143 { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_FUJI_MODEM_LIGHT) },
144 { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_FUJI_MODEM_GT) },
145 { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_FUJI_MODEM_EX) },
146 { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_FUJI_NETWORK_LIGHT) },
147 { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_FUJI_NETWORK_GT) },
148 { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_FUJI_NETWORK_EX) },
149 { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_KOI_MODEM) },
150 { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_KOI_NETWORK) },
151 { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_SCORPION_MODEM) },
152 { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_SCORPION_NETWORK) },
153 { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_ETNA_MODEM) },
154 { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_ETNA_NETWORK) },
155 { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_ETNA_MODEM_LITE) },
156 { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_ETNA_MODEM_GT) },
157 { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_ETNA_MODEM_EX) },
158 { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_ETNA_NETWORK_LITE) },
159 { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_ETNA_NETWORK_GT) },
160 { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_ETNA_NETWORK_EX) },
161 { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_ETNA_KOI_MODEM) },
162 { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_ETNA_KOI_NETWORK) },
163 { USB_DEVICE(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E600) },
164 { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E220, 0xff, 0xff, 0xff) },
165 { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E220BIS, 0xff, 0xff, 0xff) },
166 { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, 0x1100) }, /* Novatel Merlin XS620/S640 */
167 { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, 0x1110) }, /* Novatel Merlin S620 */
168 { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, 0x1120) }, /* Novatel Merlin EX720 */
169 { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, 0x1130) }, /* Novatel Merlin S720 */
170 { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, 0x1400) }, /* Novatel U730 */
171 { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, 0x1410) }, /* Novatel U740 */
172 { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, 0x1420) }, /* Novatel EU870 */
173 { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, 0x1430) }, /* Novatel Merlin XU870 HSDPA/3G */
174 { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, 0x2100) }, /* Novatel EV620 CDMA/EV-DO */
175 { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, 0x2110) }, /* Novatel Merlin ES620 / Merlin ES720 / Ovation U720 */
176 { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, 0x2130) }, /* Novatel Merlin ES620 SM Bus */
177 { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, 0x2410) }, /* Novatel EU740 */
178 { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, 0x4100) }, /* Novatel U727 */
179 { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, 0x4400) }, /* Novatel MC950 */
180 { USB_DEVICE(DELL_VENDOR_ID, 0x8114) }, /* Dell Wireless 5700 Mobile Broadband CDMA/EVDO Mini-Card == Novatel Expedite EV620 CDMA/EV-DO */
181 { USB_DEVICE(DELL_VENDOR_ID, 0x8115) }, /* Dell Wireless 5500 Mobile Broadband HSDPA Mini-Card == Novatel Expedite EU740 HSDPA/3G */
182 { USB_DEVICE(DELL_VENDOR_ID, 0x8116) }, /* Dell Wireless 5505 Mobile Broadband HSDPA Mini-Card == Novatel Expedite EU740 HSDPA/3G */
183 { USB_DEVICE(DELL_VENDOR_ID, 0x8117) }, /* Dell Wireless 5700 Mobile Broadband CDMA/EVDO ExpressCard == Novatel Merlin XV620 CDMA/EV-DO */
184 { USB_DEVICE(DELL_VENDOR_ID, 0x8118) }, /* Dell Wireless 5510 Mobile Broadband HSDPA ExpressCard == Novatel Merlin XU870 HSDPA/3G */
185 { USB_DEVICE(DELL_VENDOR_ID, 0x8128) }, /* Dell Wireless 5700 Mobile Broadband CDMA/EVDO Mini-Card == Novatel Expedite E720 CDMA/EV-DO */
186 { USB_DEVICE(DELL_VENDOR_ID, 0x8136) }, /* Dell Wireless HSDPA 5520 == Novatel Expedite EU860D */
187 { USB_DEVICE(DELL_VENDOR_ID, 0x8129) }, /* Dell Wireless 5700 Mobile Broadband CDMA/EVDO Mini-Card == Novatel Expedite ET620 CDMA/EV-DO */
188 { USB_DEVICE(DELL_VENDOR_ID, 0x8137) }, /* Dell Wireless HSDPA 5520 */
189 { USB_DEVICE(ANYDATA_VENDOR_ID, ANYDATA_PRODUCT_ADU_E100A) },
190 { USB_DEVICE(ANYDATA_VENDOR_ID, ANYDATA_PRODUCT_ADU_500A) },
191 { USB_DEVICE(BANDRICH_VENDOR_ID, BANDRICH_PRODUCT_C100_1) },
192 { USB_DEVICE(BANDRICH_VENDOR_ID, BANDRICH_PRODUCT_C100_2) },
193 { USB_DEVICE(KYOCERA_VENDOR_ID, KYOCERA_PRODUCT_KPC680) },
194 { } /* Terminating entry */
195 };
196 MODULE_DEVICE_TABLE(usb, option_ids);
197
198 static struct usb_driver option_driver = {
199 .name = "option",
200 .probe = usb_serial_probe,
201 .disconnect = usb_serial_disconnect,
202 .id_table = option_ids,
203 .no_dynamic_id = 1,
204 };
205
206 /* The card has three separate interfaces, which the serial driver
207 * recognizes separately, thus num_port=1.
208 */
209
210 static struct usb_serial_driver option_1port_device = {
211 .driver = {
212 .owner = THIS_MODULE,
213 .name = "option1",
214 },
215 .description = "GSM modem (1-port)",
216 .usb_driver = &option_driver,
217 .id_table = option_ids,
218 .num_interrupt_in = NUM_DONT_CARE,
219 .num_bulk_in = NUM_DONT_CARE,
220 .num_bulk_out = NUM_DONT_CARE,
221 .num_ports = 1,
222 .open = option_open,
223 .close = option_close,
224 .write = option_write,
225 .write_room = option_write_room,
226 .chars_in_buffer = option_chars_in_buffer,
227 .throttle = option_rx_throttle,
228 .unthrottle = option_rx_unthrottle,
229 .ioctl = option_ioctl,
230 .set_termios = option_set_termios,
231 .break_ctl = option_break_ctl,
232 .tiocmget = option_tiocmget,
233 .tiocmset = option_tiocmset,
234 .attach = option_startup,
235 .shutdown = option_shutdown,
236 .read_int_callback = option_instat_callback,
237 };
238
239 #ifdef CONFIG_USB_DEBUG
240 static int debug;
241 #else
242 #define debug 0
243 #endif
244
245 /* per port private data */
246
247 #define N_IN_URB 4
248 #define N_OUT_URB 1
249 #define IN_BUFLEN 4096
250 #define OUT_BUFLEN 128
251
252 struct option_port_private {
253 /* Input endpoints and buffer for this port */
254 struct urb *in_urbs[N_IN_URB];
255 u8 *in_buffer[N_IN_URB];
256 /* Output endpoints and buffer for this port */
257 struct urb *out_urbs[N_OUT_URB];
258 u8 *out_buffer[N_OUT_URB];
259 unsigned long out_busy; /* Bit vector of URBs in use */
260
261 /* Settings for the port */
262 int rts_state; /* Handshaking pins (outputs) */
263 int dtr_state;
264 int cts_state; /* Handshaking pins (inputs) */
265 int dsr_state;
266 int dcd_state;
267 int ri_state;
268
269 unsigned long tx_start_time[N_OUT_URB];
270 };
271
272 /* Functions used by new usb-serial code. */
273 static int __init option_init(void)
274 {
275 int retval;
276 retval = usb_serial_register(&option_1port_device);
277 if (retval)
278 goto failed_1port_device_register;
279 retval = usb_register(&option_driver);
280 if (retval)
281 goto failed_driver_register;
282
283 info(DRIVER_DESC ": " DRIVER_VERSION);
284
285 return 0;
286
287 failed_driver_register:
288 usb_serial_deregister (&option_1port_device);
289 failed_1port_device_register:
290 return retval;
291 }
292
293 static void __exit option_exit(void)
294 {
295 usb_deregister (&option_driver);
296 usb_serial_deregister (&option_1port_device);
297 }
298
299 module_init(option_init);
300 module_exit(option_exit);
301
302 static void option_rx_throttle(struct usb_serial_port *port)
303 {
304 dbg("%s", __FUNCTION__);
305 }
306
307 static void option_rx_unthrottle(struct usb_serial_port *port)
308 {
309 dbg("%s", __FUNCTION__);
310 }
311
312 static void option_break_ctl(struct usb_serial_port *port, int break_state)
313 {
314 /* Unfortunately, I don't know how to send a break */
315 dbg("%s", __FUNCTION__);
316 }
317
318 static void option_set_termios(struct usb_serial_port *port,
319 struct ktermios *old_termios)
320 {
321 dbg("%s", __FUNCTION__);
322 /* Doesn't support option setting */
323 tty_termios_copy_hw(port->tty->termios, old_termios);
324 option_send_setup(port);
325 }
326
327 static int option_tiocmget(struct usb_serial_port *port, struct file *file)
328 {
329 unsigned int value;
330 struct option_port_private *portdata;
331
332 portdata = usb_get_serial_port_data(port);
333
334 value = ((portdata->rts_state) ? TIOCM_RTS : 0) |
335 ((portdata->dtr_state) ? TIOCM_DTR : 0) |
336 ((portdata->cts_state) ? TIOCM_CTS : 0) |
337 ((portdata->dsr_state) ? TIOCM_DSR : 0) |
338 ((portdata->dcd_state) ? TIOCM_CAR : 0) |
339 ((portdata->ri_state) ? TIOCM_RNG : 0);
340
341 return value;
342 }
343
344 static int option_tiocmset(struct usb_serial_port *port, struct file *file,
345 unsigned int set, unsigned int clear)
346 {
347 struct option_port_private *portdata;
348
349 portdata = usb_get_serial_port_data(port);
350
351 if (set & TIOCM_RTS)
352 portdata->rts_state = 1;
353 if (set & TIOCM_DTR)
354 portdata->dtr_state = 1;
355
356 if (clear & TIOCM_RTS)
357 portdata->rts_state = 0;
358 if (clear & TIOCM_DTR)
359 portdata->dtr_state = 0;
360 return option_send_setup(port);
361 }
362
363 static int option_ioctl(struct usb_serial_port *port, struct file *file,
364 unsigned int cmd, unsigned long arg)
365 {
366 return -ENOIOCTLCMD;
367 }
368
369 /* Write */
370 static int option_write(struct usb_serial_port *port,
371 const unsigned char *buf, int count)
372 {
373 struct option_port_private *portdata;
374 int i;
375 int left, todo;
376 struct urb *this_urb = NULL; /* spurious */
377 int err;
378
379 portdata = usb_get_serial_port_data(port);
380
381 dbg("%s: write (%d chars)", __FUNCTION__, count);
382
383 i = 0;
384 left = count;
385 for (i=0; left > 0 && i < N_OUT_URB; i++) {
386 todo = left;
387 if (todo > OUT_BUFLEN)
388 todo = OUT_BUFLEN;
389
390 this_urb = portdata->out_urbs[i];
391 if (test_and_set_bit(i, &portdata->out_busy)) {
392 if (time_before(jiffies,
393 portdata->tx_start_time[i] + 10 * HZ))
394 continue;
395 usb_unlink_urb(this_urb);
396 continue;
397 }
398 if (this_urb->status != 0)
399 dbg("usb_write %p failed (err=%d)",
400 this_urb, this_urb->status);
401
402 dbg("%s: endpoint %d buf %d", __FUNCTION__,
403 usb_pipeendpoint(this_urb->pipe), i);
404
405 /* send the data */
406 memcpy (this_urb->transfer_buffer, buf, todo);
407 this_urb->transfer_buffer_length = todo;
408
409 this_urb->dev = port->serial->dev;
410 err = usb_submit_urb(this_urb, GFP_ATOMIC);
411 if (err) {
412 dbg("usb_submit_urb %p (write bulk) failed "
413 "(%d, has %d)", this_urb,
414 err, this_urb->status);
415 clear_bit(i, &portdata->out_busy);
416 continue;
417 }
418 portdata->tx_start_time[i] = jiffies;
419 buf += todo;
420 left -= todo;
421 }
422
423 count -= left;
424 dbg("%s: wrote (did %d)", __FUNCTION__, count);
425 return count;
426 }
427
428 static void option_indat_callback(struct urb *urb)
429 {
430 int err;
431 int endpoint;
432 struct usb_serial_port *port;
433 struct tty_struct *tty;
434 unsigned char *data = urb->transfer_buffer;
435 int status = urb->status;
436
437 dbg("%s: %p", __FUNCTION__, urb);
438
439 endpoint = usb_pipeendpoint(urb->pipe);
440 port = (struct usb_serial_port *) urb->context;
441
442 if (status) {
443 dbg("%s: nonzero status: %d on endpoint %02x.",
444 __FUNCTION__, status, endpoint);
445 } else {
446 tty = port->tty;
447 if (urb->actual_length) {
448 tty_buffer_request_room(tty, urb->actual_length);
449 tty_insert_flip_string(tty, data, urb->actual_length);
450 tty_flip_buffer_push(tty);
451 } else {
452 dbg("%s: empty read urb received", __FUNCTION__);
453 }
454
455 /* Resubmit urb so we continue receiving */
456 if (port->open_count && status != -ESHUTDOWN) {
457 err = usb_submit_urb(urb, GFP_ATOMIC);
458 if (err)
459 printk(KERN_ERR "%s: resubmit read urb failed. "
460 "(%d)", __FUNCTION__, err);
461 }
462 }
463 return;
464 }
465
466 static void option_outdat_callback(struct urb *urb)
467 {
468 struct usb_serial_port *port;
469 struct option_port_private *portdata;
470 int i;
471
472 dbg("%s", __FUNCTION__);
473
474 port = (struct usb_serial_port *) urb->context;
475
476 usb_serial_port_softint(port);
477
478 portdata = usb_get_serial_port_data(port);
479 for (i = 0; i < N_OUT_URB; ++i) {
480 if (portdata->out_urbs[i] == urb) {
481 smp_mb__before_clear_bit();
482 clear_bit(i, &portdata->out_busy);
483 break;
484 }
485 }
486 }
487
488 static void option_instat_callback(struct urb *urb)
489 {
490 int err;
491 int status = urb->status;
492 struct usb_serial_port *port = (struct usb_serial_port *) urb->context;
493 struct option_port_private *portdata = usb_get_serial_port_data(port);
494 struct usb_serial *serial = port->serial;
495
496 dbg("%s", __FUNCTION__);
497 dbg("%s: urb %p port %p has data %p", __FUNCTION__,urb,port,portdata);
498
499 if (status == 0) {
500 struct usb_ctrlrequest *req_pkt =
501 (struct usb_ctrlrequest *)urb->transfer_buffer;
502
503 if (!req_pkt) {
504 dbg("%s: NULL req_pkt\n", __FUNCTION__);
505 return;
506 }
507 if ((req_pkt->bRequestType == 0xA1) &&
508 (req_pkt->bRequest == 0x20)) {
509 int old_dcd_state;
510 unsigned char signals = *((unsigned char *)
511 urb->transfer_buffer +
512 sizeof(struct usb_ctrlrequest));
513
514 dbg("%s: signal x%x", __FUNCTION__, signals);
515
516 old_dcd_state = portdata->dcd_state;
517 portdata->cts_state = 1;
518 portdata->dcd_state = ((signals & 0x01) ? 1 : 0);
519 portdata->dsr_state = ((signals & 0x02) ? 1 : 0);
520 portdata->ri_state = ((signals & 0x08) ? 1 : 0);
521
522 if (port->tty && !C_CLOCAL(port->tty) &&
523 old_dcd_state && !portdata->dcd_state)
524 tty_hangup(port->tty);
525 } else {
526 dbg("%s: type %x req %x", __FUNCTION__,
527 req_pkt->bRequestType,req_pkt->bRequest);
528 }
529 } else
530 dbg("%s: error %d", __FUNCTION__, status);
531
532 /* Resubmit urb so we continue receiving IRQ data */
533 if (status != -ESHUTDOWN) {
534 urb->dev = serial->dev;
535 err = usb_submit_urb(urb, GFP_ATOMIC);
536 if (err)
537 dbg("%s: resubmit intr urb failed. (%d)",
538 __FUNCTION__, err);
539 }
540 }
541
542 static int option_write_room(struct usb_serial_port *port)
543 {
544 struct option_port_private *portdata;
545 int i;
546 int data_len = 0;
547 struct urb *this_urb;
548
549 portdata = usb_get_serial_port_data(port);
550
551 for (i=0; i < N_OUT_URB; i++) {
552 this_urb = portdata->out_urbs[i];
553 if (this_urb && !test_bit(i, &portdata->out_busy))
554 data_len += OUT_BUFLEN;
555 }
556
557 dbg("%s: %d", __FUNCTION__, data_len);
558 return data_len;
559 }
560
561 static int option_chars_in_buffer(struct usb_serial_port *port)
562 {
563 struct option_port_private *portdata;
564 int i;
565 int data_len = 0;
566 struct urb *this_urb;
567
568 portdata = usb_get_serial_port_data(port);
569
570 for (i=0; i < N_OUT_URB; i++) {
571 this_urb = portdata->out_urbs[i];
572 if (this_urb && test_bit(i, &portdata->out_busy))
573 data_len += this_urb->transfer_buffer_length;
574 }
575 dbg("%s: %d", __FUNCTION__, data_len);
576 return data_len;
577 }
578
579 static int option_open(struct usb_serial_port *port, struct file *filp)
580 {
581 struct option_port_private *portdata;
582 struct usb_serial *serial = port->serial;
583 int i, err;
584 struct urb *urb;
585
586 portdata = usb_get_serial_port_data(port);
587
588 dbg("%s", __FUNCTION__);
589
590 /* Set some sane defaults */
591 portdata->rts_state = 1;
592 portdata->dtr_state = 1;
593
594 /* Reset low level data toggle and start reading from endpoints */
595 for (i = 0; i < N_IN_URB; i++) {
596 urb = portdata->in_urbs[i];
597 if (! urb)
598 continue;
599 if (urb->dev != serial->dev) {
600 dbg("%s: dev %p != %p", __FUNCTION__,
601 urb->dev, serial->dev);
602 continue;
603 }
604
605 /*
606 * make sure endpoint data toggle is synchronized with the
607 * device
608 */
609 usb_clear_halt(urb->dev, urb->pipe);
610
611 err = usb_submit_urb(urb, GFP_KERNEL);
612 if (err) {
613 dbg("%s: submit urb %d failed (%d) %d",
614 __FUNCTION__, i, err,
615 urb->transfer_buffer_length);
616 }
617 }
618
619 /* Reset low level data toggle on out endpoints */
620 for (i = 0; i < N_OUT_URB; i++) {
621 urb = portdata->out_urbs[i];
622 if (! urb)
623 continue;
624 urb->dev = serial->dev;
625 /* usb_settoggle(urb->dev, usb_pipeendpoint(urb->pipe),
626 usb_pipeout(urb->pipe), 0); */
627 }
628
629 port->tty->low_latency = 1;
630
631 option_send_setup(port);
632
633 return (0);
634 }
635
636 static void option_close(struct usb_serial_port *port, struct file *filp)
637 {
638 int i;
639 struct usb_serial *serial = port->serial;
640 struct option_port_private *portdata;
641
642 dbg("%s", __FUNCTION__);
643 portdata = usb_get_serial_port_data(port);
644
645 portdata->rts_state = 0;
646 portdata->dtr_state = 0;
647
648 if (serial->dev) {
649 mutex_lock(&serial->disc_mutex);
650 if (!serial->disconnected)
651 option_send_setup(port);
652 mutex_unlock(&serial->disc_mutex);
653
654 /* Stop reading/writing urbs */
655 for (i = 0; i < N_IN_URB; i++)
656 usb_kill_urb(portdata->in_urbs[i]);
657 for (i = 0; i < N_OUT_URB; i++)
658 usb_kill_urb(portdata->out_urbs[i]);
659 }
660 port->tty = NULL;
661 }
662
663 /* Helper functions used by option_setup_urbs */
664 static struct urb *option_setup_urb(struct usb_serial *serial, int endpoint,
665 int dir, void *ctx, char *buf, int len,
666 void (*callback)(struct urb *))
667 {
668 struct urb *urb;
669
670 if (endpoint == -1)
671 return NULL; /* endpoint not needed */
672
673 urb = usb_alloc_urb(0, GFP_KERNEL); /* No ISO */
674 if (urb == NULL) {
675 dbg("%s: alloc for endpoint %d failed.", __FUNCTION__, endpoint);
676 return NULL;
677 }
678
679 /* Fill URB using supplied data. */
680 usb_fill_bulk_urb(urb, serial->dev,
681 usb_sndbulkpipe(serial->dev, endpoint) | dir,
682 buf, len, callback, ctx);
683
684 return urb;
685 }
686
687 /* Setup urbs */
688 static void option_setup_urbs(struct usb_serial *serial)
689 {
690 int i,j;
691 struct usb_serial_port *port;
692 struct option_port_private *portdata;
693
694 dbg("%s", __FUNCTION__);
695
696 for (i = 0; i < serial->num_ports; i++) {
697 port = serial->port[i];
698 portdata = usb_get_serial_port_data(port);
699
700 /* Do indat endpoints first */
701 for (j = 0; j < N_IN_URB; ++j) {
702 portdata->in_urbs[j] = option_setup_urb (serial,
703 port->bulk_in_endpointAddress, USB_DIR_IN, port,
704 portdata->in_buffer[j], IN_BUFLEN, option_indat_callback);
705 }
706
707 /* outdat endpoints */
708 for (j = 0; j < N_OUT_URB; ++j) {
709 portdata->out_urbs[j] = option_setup_urb (serial,
710 port->bulk_out_endpointAddress, USB_DIR_OUT, port,
711 portdata->out_buffer[j], OUT_BUFLEN, option_outdat_callback);
712 }
713 }
714 }
715
716 static int option_send_setup(struct usb_serial_port *port)
717 {
718 struct usb_serial *serial = port->serial;
719 struct option_port_private *portdata;
720
721 dbg("%s", __FUNCTION__);
722
723 if (port->number != 0)
724 return 0;
725
726 portdata = usb_get_serial_port_data(port);
727
728 if (port->tty) {
729 int val = 0;
730 if (portdata->dtr_state)
731 val |= 0x01;
732 if (portdata->rts_state)
733 val |= 0x02;
734
735 return usb_control_msg(serial->dev,
736 usb_rcvctrlpipe(serial->dev, 0),
737 0x22,0x21,val,0,NULL,0,USB_CTRL_SET_TIMEOUT);
738 }
739
740 return 0;
741 }
742
743 static int option_startup(struct usb_serial *serial)
744 {
745 int i, j, err;
746 struct usb_serial_port *port;
747 struct option_port_private *portdata;
748 u8 *buffer;
749
750 dbg("%s", __FUNCTION__);
751
752 /* Now setup per port private data */
753 for (i = 0; i < serial->num_ports; i++) {
754 port = serial->port[i];
755 portdata = kzalloc(sizeof(*portdata), GFP_KERNEL);
756 if (!portdata) {
757 dbg("%s: kmalloc for option_port_private (%d) failed!.",
758 __FUNCTION__, i);
759 return (1);
760 }
761
762 for (j = 0; j < N_IN_URB; j++) {
763 buffer = (u8 *)__get_free_page(GFP_KERNEL);
764 if (!buffer)
765 goto bail_out_error;
766 portdata->in_buffer[j] = buffer;
767 }
768
769 for (j = 0; j < N_OUT_URB; j++) {
770 buffer = kmalloc(OUT_BUFLEN, GFP_KERNEL);
771 if (!buffer)
772 goto bail_out_error2;
773 portdata->out_buffer[j] = buffer;
774 }
775
776 usb_set_serial_port_data(port, portdata);
777
778 if (! port->interrupt_in_urb)
779 continue;
780 err = usb_submit_urb(port->interrupt_in_urb, GFP_KERNEL);
781 if (err)
782 dbg("%s: submit irq_in urb failed %d",
783 __FUNCTION__, err);
784 }
785
786 option_setup_urbs(serial);
787
788 return (0);
789
790 bail_out_error2:
791 for (j = 0; j < N_OUT_URB; j++)
792 kfree(portdata->out_buffer[j]);
793 bail_out_error:
794 for (j = 0; j < N_IN_URB; j++)
795 if (portdata->in_buffer[j])
796 free_page((unsigned long)portdata->in_buffer[j]);
797 kfree(portdata);
798 return 1;
799 }
800
801 static void option_shutdown(struct usb_serial *serial)
802 {
803 int i, j;
804 struct usb_serial_port *port;
805 struct option_port_private *portdata;
806
807 dbg("%s", __FUNCTION__);
808
809 /* Stop reading/writing urbs */
810 for (i = 0; i < serial->num_ports; ++i) {
811 port = serial->port[i];
812 portdata = usb_get_serial_port_data(port);
813 for (j = 0; j < N_IN_URB; j++)
814 usb_kill_urb(portdata->in_urbs[j]);
815 for (j = 0; j < N_OUT_URB; j++)
816 usb_kill_urb(portdata->out_urbs[j]);
817 }
818
819 /* Now free them */
820 for (i = 0; i < serial->num_ports; ++i) {
821 port = serial->port[i];
822 portdata = usb_get_serial_port_data(port);
823
824 for (j = 0; j < N_IN_URB; j++) {
825 if (portdata->in_urbs[j]) {
826 usb_free_urb(portdata->in_urbs[j]);
827 free_page((unsigned long)portdata->in_buffer[j]);
828 portdata->in_urbs[j] = NULL;
829 }
830 }
831 for (j = 0; j < N_OUT_URB; j++) {
832 if (portdata->out_urbs[j]) {
833 usb_free_urb(portdata->out_urbs[j]);
834 kfree(portdata->out_buffer[j]);
835 portdata->out_urbs[j] = NULL;
836 }
837 }
838 }
839
840 /* Now free per port private data */
841 for (i = 0; i < serial->num_ports; i++) {
842 port = serial->port[i];
843 kfree(usb_get_serial_port_data(port));
844 }
845 }
846
847 MODULE_AUTHOR(DRIVER_AUTHOR);
848 MODULE_DESCRIPTION(DRIVER_DESC);
849 MODULE_VERSION(DRIVER_VERSION);
850 MODULE_LICENSE("GPL");
851
852 #ifdef CONFIG_USB_DEBUG
853 module_param(debug, bool, S_IRUGO | S_IWUSR);
854 MODULE_PARM_DESC(debug, "Debug messages");
855 #endif
856
cpufreq for S3C2410