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Commit | Line | Data |
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07dc1f9f HL |
1 | /* |
2 | * USB driver for Gigaset 307x directly or using M105 Data. | |
3 | * | |
70440cf2 | 4 | * Copyright (c) 2001 by Stefan Eilers |
07dc1f9f HL |
5 | * and Hansjoerg Lipp <hjlipp@web.de>. |
6 | * | |
7 | * This driver was derived from the USB skeleton driver by | |
8 | * Greg Kroah-Hartman <greg@kroah.com> | |
9 | * | |
10 | * ===================================================================== | |
11 | * This program is free software; you can redistribute it and/or | |
12 | * modify it under the terms of the GNU General Public License as | |
13 | * published by the Free Software Foundation; either version 2 of | |
14 | * the License, or (at your option) any later version. | |
15 | * ===================================================================== | |
07dc1f9f HL |
16 | */ |
17 | ||
18 | #include "gigaset.h" | |
07dc1f9f HL |
19 | #include <linux/usb.h> |
20 | #include <linux/module.h> | |
21 | #include <linux/moduleparam.h> | |
22 | ||
23 | /* Version Information */ | |
70440cf2 | 24 | #define DRIVER_AUTHOR "Hansjoerg Lipp <hjlipp@web.de>, Stefan Eilers" |
07dc1f9f HL |
25 | #define DRIVER_DESC "USB Driver for Gigaset 307x using M105" |
26 | ||
27 | /* Module parameters */ | |
28 | ||
29 | static int startmode = SM_ISDN; | |
30 | static int cidmode = 1; | |
31 | ||
32 | module_param(startmode, int, S_IRUGO); | |
33 | module_param(cidmode, int, S_IRUGO); | |
34 | MODULE_PARM_DESC(startmode, "start in isdn4linux mode"); | |
35 | MODULE_PARM_DESC(cidmode, "Call-ID mode"); | |
36 | ||
37 | #define GIGASET_MINORS 1 | |
38 | #define GIGASET_MINOR 8 | |
39 | #define GIGASET_MODULENAME "usb_gigaset" | |
07dc1f9f HL |
40 | #define GIGASET_DEVNAME "ttyGU" |
41 | ||
b3251d80 TS |
42 | /* length limit according to Siemens 3070usb-protokoll.doc ch. 2.1 */ |
43 | #define IF_WRITEBUF 264 | |
07dc1f9f HL |
44 | |
45 | /* Values for the Gigaset M105 Data */ | |
46 | #define USB_M105_VENDOR_ID 0x0681 | |
47 | #define USB_M105_PRODUCT_ID 0x0009 | |
48 | ||
49 | /* table of devices that work with this driver */ | |
2032e2c2 | 50 | static const struct usb_device_id gigaset_table[] = { |
07dc1f9f HL |
51 | { USB_DEVICE(USB_M105_VENDOR_ID, USB_M105_PRODUCT_ID) }, |
52 | { } /* Terminating entry */ | |
53 | }; | |
54 | ||
55 | MODULE_DEVICE_TABLE(usb, gigaset_table); | |
56 | ||
07dc1f9f HL |
57 | /* |
58 | * Control requests (empty fields: 00) | |
59 | * | |
60 | * RT|RQ|VALUE|INDEX|LEN |DATA | |
61 | * In: | |
62 | * C1 08 01 | |
63 | * Get flags (1 byte). Bits: 0=dtr,1=rts,3-7:? | |
64 | * C1 0F ll ll | |
65 | * Get device information/status (llll: 0x200 and 0x40 seen). | |
66 | * Real size: I only saw MIN(llll,0x64). | |
67 | * Contents: seems to be always the same... | |
68 | * offset 0x00: Length of this structure (0x64) (len: 1,2,3 bytes) | |
69 | * offset 0x3c: String (16 bit chars): "MCCI USB Serial V2.0" | |
70 | * rest: ? | |
71 | * Out: | |
72 | * 41 11 | |
73 | * Initialize/reset device ? | |
74 | * 41 00 xx 00 | |
75 | * ? (xx=00 or 01; 01 on start, 00 on close) | |
76 | * 41 07 vv mm | |
77 | * Set/clear flags vv=value, mm=mask (see RQ 08) | |
78 | * 41 12 xx | |
79 | * Used before the following configuration requests are issued | |
80 | * (with xx=0x0f). I've seen other values<0xf, though. | |
81 | * 41 01 xx xx | |
82 | * Set baud rate. xxxx=ceil(0x384000/rate)=trunc(0x383fff/rate)+1. | |
83 | * 41 03 ps bb | |
84 | * Set byte size and parity. p: 0x20=even,0x10=odd,0x00=no parity | |
85 | * [ 0x30: m, 0x40: s ] | |
86 | * [s: 0: 1 stop bit; 1: 1.5; 2: 2] | |
87 | * bb: bits/byte (seen 7 and 8) | |
88 | * 41 13 -- -- -- -- 10 00 ww 00 00 00 xx 00 00 00 yy 00 00 00 zz 00 00 00 | |
89 | * ?? | |
90 | * Initialization: 01, 40, 00, 00 | |
91 | * Open device: 00 40, 00, 00 | |
92 | * yy and zz seem to be equal, either 0x00 or 0x0a | |
93 | * (ww,xx) pairs seen: (00,00), (00,40), (01,40), (09,80), (19,80) | |
94 | * 41 19 -- -- -- -- 06 00 00 00 00 xx 11 13 | |
95 | * Used after every "configuration sequence" (RQ 12, RQs 01/03/13). | |
96 | * xx is usually 0x00 but was 0x7e before starting data transfer | |
2032e2c2 TS |
97 | * in unimodem mode. So, this might be an array of characters that |
98 | * need special treatment ("commit all bufferd data"?), 11=^Q, 13=^S. | |
07dc1f9f HL |
99 | * |
100 | * Unimodem mode: use "modprobe ppp_async flag_time=0" as the device _needs_ two | |
101 | * flags per packet. | |
102 | */ | |
103 | ||
c652cbd8 | 104 | /* functions called if a device of this driver is connected/disconnected */ |
07dc1f9f | 105 | static int gigaset_probe(struct usb_interface *interface, |
784d5858 | 106 | const struct usb_device_id *id); |
07dc1f9f HL |
107 | static void gigaset_disconnect(struct usb_interface *interface); |
108 | ||
1ff0a529 TS |
109 | /* functions called before/after suspend */ |
110 | static int gigaset_suspend(struct usb_interface *intf, pm_message_t message); | |
111 | static int gigaset_resume(struct usb_interface *intf); | |
112 | static int gigaset_pre_reset(struct usb_interface *intf); | |
113 | ||
2032e2c2 | 114 | static struct gigaset_driver *driver; |
07dc1f9f HL |
115 | |
116 | /* usb specific object needed to register this driver with the usb subsystem */ | |
117 | static struct usb_driver gigaset_usb_driver = { | |
917f5085 TS |
118 | .name = GIGASET_MODULENAME, |
119 | .probe = gigaset_probe, | |
120 | .disconnect = gigaset_disconnect, | |
121 | .id_table = gigaset_table, | |
1ff0a529 TS |
122 | .suspend = gigaset_suspend, |
123 | .resume = gigaset_resume, | |
124 | .reset_resume = gigaset_resume, | |
125 | .pre_reset = gigaset_pre_reset, | |
126 | .post_reset = gigaset_resume, | |
e1f12eb6 | 127 | .disable_hub_initiated_lpm = 1, |
07dc1f9f HL |
128 | }; |
129 | ||
130 | struct usb_cardstate { | |
917f5085 TS |
131 | struct usb_device *udev; /* usb device pointer */ |
132 | struct usb_interface *interface; /* interface for this device */ | |
9d4bee2b | 133 | int busy; /* bulk output in progress */ |
917f5085 TS |
134 | |
135 | /* Output buffer */ | |
784d5858 TS |
136 | unsigned char *bulk_out_buffer; |
137 | int bulk_out_size; | |
138 | __u8 bulk_out_endpointAddr; | |
139 | struct urb *bulk_out_urb; | |
917f5085 TS |
140 | |
141 | /* Input buffer */ | |
2032e2c2 | 142 | unsigned char *rcvbuf; |
784d5858 TS |
143 | int rcvbuf_size; |
144 | struct urb *read_urb; | |
917f5085 | 145 | |
784d5858 | 146 | char bchars[6]; /* for request 0x19 */ |
07dc1f9f HL |
147 | }; |
148 | ||
07dc1f9f HL |
149 | static inline unsigned tiocm_to_gigaset(unsigned state) |
150 | { | |
151 | return ((state & TIOCM_DTR) ? 1 : 0) | ((state & TIOCM_RTS) ? 2 : 0); | |
152 | } | |
153 | ||
07dc1f9f | 154 | static int gigaset_set_modem_ctrl(struct cardstate *cs, unsigned old_state, |
784d5858 | 155 | unsigned new_state) |
07dc1f9f | 156 | { |
784d5858 | 157 | struct usb_device *udev = cs->hw.usb->udev; |
07dc1f9f HL |
158 | unsigned mask, val; |
159 | int r; | |
160 | ||
161 | mask = tiocm_to_gigaset(old_state ^ new_state); | |
162 | val = tiocm_to_gigaset(new_state); | |
163 | ||
784d5858 | 164 | gig_dbg(DEBUG_USBREQ, "set flags 0x%02x with mask 0x%02x", val, mask); |
784d5858 TS |
165 | r = usb_control_msg(udev, usb_sndctrlpipe(udev, 0), 7, 0x41, |
166 | (val & 0xff) | ((mask & 0xff) << 8), 0, | |
167 | NULL, 0, 2000 /* timeout? */); | |
07dc1f9f HL |
168 | if (r < 0) |
169 | return r; | |
07dc1f9f HL |
170 | return 0; |
171 | } | |
172 | ||
b88bd956 TS |
173 | /* |
174 | * Set M105 configuration value | |
175 | * using undocumented device commands reverse engineered from USB traces | |
176 | * of the Siemens Windows driver | |
177 | */ | |
07dc1f9f HL |
178 | static int set_value(struct cardstate *cs, u8 req, u16 val) |
179 | { | |
784d5858 | 180 | struct usb_device *udev = cs->hw.usb->udev; |
07dc1f9f HL |
181 | int r, r2; |
182 | ||
784d5858 TS |
183 | gig_dbg(DEBUG_USBREQ, "request %02x (%04x)", |
184 | (unsigned)req, (unsigned)val); | |
185 | r = usb_control_msg(udev, usb_sndctrlpipe(udev, 0), 0x12, 0x41, | |
186 | 0xf /*?*/, 0, NULL, 0, 2000 /*?*/); | |
475be4d8 | 187 | /* no idea what this does */ |
07dc1f9f | 188 | if (r < 0) { |
784d5858 | 189 | dev_err(&udev->dev, "error %d on request 0x12\n", -r); |
07dc1f9f HL |
190 | return r; |
191 | } | |
192 | ||
784d5858 TS |
193 | r = usb_control_msg(udev, usb_sndctrlpipe(udev, 0), req, 0x41, |
194 | val, 0, NULL, 0, 2000 /*?*/); | |
07dc1f9f | 195 | if (r < 0) |
784d5858 TS |
196 | dev_err(&udev->dev, "error %d on request 0x%02x\n", |
197 | -r, (unsigned)req); | |
07dc1f9f | 198 | |
784d5858 TS |
199 | r2 = usb_control_msg(udev, usb_sndctrlpipe(udev, 0), 0x19, 0x41, |
200 | 0, 0, cs->hw.usb->bchars, 6, 2000 /*?*/); | |
07dc1f9f | 201 | if (r2 < 0) |
784d5858 | 202 | dev_err(&udev->dev, "error %d on request 0x19\n", -r2); |
07dc1f9f HL |
203 | |
204 | return r < 0 ? r : (r2 < 0 ? r2 : 0); | |
205 | } | |
206 | ||
b88bd956 TS |
207 | /* |
208 | * set the baud rate on the internal serial adapter | |
209 | * using the undocumented parameter setting command | |
210 | */ | |
07dc1f9f HL |
211 | static int gigaset_baud_rate(struct cardstate *cs, unsigned cflag) |
212 | { | |
213 | u16 val; | |
214 | u32 rate; | |
215 | ||
216 | cflag &= CBAUD; | |
217 | ||
218 | switch (cflag) { | |
07dc1f9f HL |
219 | case B300: rate = 300; break; |
220 | case B600: rate = 600; break; | |
221 | case B1200: rate = 1200; break; | |
222 | case B2400: rate = 2400; break; | |
223 | case B4800: rate = 4800; break; | |
224 | case B9600: rate = 9600; break; | |
225 | case B19200: rate = 19200; break; | |
226 | case B38400: rate = 38400; break; | |
227 | case B57600: rate = 57600; break; | |
228 | case B115200: rate = 115200; break; | |
229 | default: | |
230 | rate = 9600; | |
784d5858 TS |
231 | dev_err(cs->dev, "unsupported baudrate request 0x%x," |
232 | " using default of B9600\n", cflag); | |
07dc1f9f HL |
233 | } |
234 | ||
235 | val = 0x383fff / rate + 1; | |
236 | ||
237 | return set_value(cs, 1, val); | |
238 | } | |
239 | ||
b88bd956 TS |
240 | /* |
241 | * set the line format on the internal serial adapter | |
242 | * using the undocumented parameter setting command | |
243 | */ | |
07dc1f9f HL |
244 | static int gigaset_set_line_ctrl(struct cardstate *cs, unsigned cflag) |
245 | { | |
246 | u16 val = 0; | |
247 | ||
248 | /* set the parity */ | |
249 | if (cflag & PARENB) | |
250 | val |= (cflag & PARODD) ? 0x10 : 0x20; | |
251 | ||
252 | /* set the number of data bits */ | |
253 | switch (cflag & CSIZE) { | |
254 | case CS5: | |
255 | val |= 5 << 8; break; | |
256 | case CS6: | |
257 | val |= 6 << 8; break; | |
258 | case CS7: | |
259 | val |= 7 << 8; break; | |
260 | case CS8: | |
261 | val |= 8 << 8; break; | |
262 | default: | |
784d5858 | 263 | dev_err(cs->dev, "CSIZE was not CS5-CS8, using default of 8\n"); |
07dc1f9f HL |
264 | val |= 8 << 8; |
265 | break; | |
266 | } | |
267 | ||
268 | /* set the number of stop bits */ | |
269 | if (cflag & CSTOPB) { | |
270 | if ((cflag & CSIZE) == CS5) | |
2032e2c2 | 271 | val |= 1; /* 1.5 stop bits */ |
07dc1f9f HL |
272 | else |
273 | val |= 2; /* 2 stop bits */ | |
274 | } | |
275 | ||
276 | return set_value(cs, 3, val); | |
277 | } | |
278 | ||
07dc1f9f | 279 | |
2032e2c2 | 280 | /*============================================================================*/ |
07dc1f9f HL |
281 | static int gigaset_init_bchannel(struct bc_state *bcs) |
282 | { | |
283 | /* nothing to do for M10x */ | |
284 | gigaset_bchannel_up(bcs); | |
285 | return 0; | |
286 | } | |
287 | ||
288 | static int gigaset_close_bchannel(struct bc_state *bcs) | |
289 | { | |
290 | /* nothing to do for M10x */ | |
291 | gigaset_bchannel_down(bcs); | |
292 | return 0; | |
293 | } | |
294 | ||
07dc1f9f HL |
295 | static int write_modem(struct cardstate *cs); |
296 | static int send_cb(struct cardstate *cs, struct cmdbuf_t *cb); | |
297 | ||
298 | ||
917f5085 TS |
299 | /* Write tasklet handler: Continue sending current skb, or send command, or |
300 | * start sending an skb from the send queue. | |
07dc1f9f HL |
301 | */ |
302 | static void gigaset_modem_fill(unsigned long data) | |
303 | { | |
304 | struct cardstate *cs = (struct cardstate *) data; | |
305 | struct bc_state *bcs = &cs->bcs[0]; /* only one channel */ | |
306 | struct cmdbuf_t *cb; | |
07dc1f9f HL |
307 | int again; |
308 | ||
784d5858 | 309 | gig_dbg(DEBUG_OUTPUT, "modem_fill"); |
07dc1f9f | 310 | |
9d4bee2b | 311 | if (cs->hw.usb->busy) { |
784d5858 | 312 | gig_dbg(DEBUG_OUTPUT, "modem_fill: busy"); |
07dc1f9f HL |
313 | return; |
314 | } | |
315 | ||
316 | do { | |
317 | again = 0; | |
318 | if (!bcs->tx_skb) { /* no skb is being sent */ | |
07dc1f9f | 319 | cb = cs->cmdbuf; |
07dc1f9f | 320 | if (cb) { /* commands to send? */ |
784d5858 | 321 | gig_dbg(DEBUG_OUTPUT, "modem_fill: cb"); |
07dc1f9f | 322 | if (send_cb(cs, cb) < 0) { |
784d5858 TS |
323 | gig_dbg(DEBUG_OUTPUT, |
324 | "modem_fill: send_cb failed"); | |
917f5085 TS |
325 | again = 1; /* no callback will be |
326 | called! */ | |
07dc1f9f HL |
327 | } |
328 | } else { /* skbs to send? */ | |
329 | bcs->tx_skb = skb_dequeue(&bcs->squeue); | |
330 | if (bcs->tx_skb) | |
784d5858 TS |
331 | gig_dbg(DEBUG_INTR, |
332 | "Dequeued skb (Adr: %lx)!", | |
333 | (unsigned long) bcs->tx_skb); | |
07dc1f9f HL |
334 | } |
335 | } | |
336 | ||
337 | if (bcs->tx_skb) { | |
784d5858 | 338 | gig_dbg(DEBUG_OUTPUT, "modem_fill: tx_skb"); |
07dc1f9f | 339 | if (write_modem(cs) < 0) { |
784d5858 TS |
340 | gig_dbg(DEBUG_OUTPUT, |
341 | "modem_fill: write_modem failed"); | |
07dc1f9f HL |
342 | again = 1; /* no callback will be called! */ |
343 | } | |
344 | } | |
345 | } while (again); | |
346 | } | |
347 | ||
b88bd956 TS |
348 | /* |
349 | * Interrupt Input URB completion routine | |
07dc1f9f | 350 | */ |
7d12e780 | 351 | static void gigaset_read_int_callback(struct urb *urb) |
07dc1f9f | 352 | { |
2032e2c2 TS |
353 | struct cardstate *cs = urb->context; |
354 | struct inbuf_t *inbuf = cs->inbuf; | |
dbd98231 | 355 | int status = urb->status; |
07dc1f9f | 356 | int r; |
07dc1f9f HL |
357 | unsigned numbytes; |
358 | unsigned char *src; | |
69049cc8 | 359 | unsigned long flags; |
07dc1f9f | 360 | |
dbd98231 | 361 | if (!status) { |
07dc1f9f HL |
362 | numbytes = urb->actual_length; |
363 | ||
364 | if (numbytes) { | |
2032e2c2 | 365 | src = cs->hw.usb->rcvbuf; |
07dc1f9f | 366 | if (unlikely(*src)) |
784d5858 | 367 | dev_warn(cs->dev, |
475be4d8 | 368 | "%s: There was no leading 0, but 0x%02x!\n", |
784d5858 | 369 | __func__, (unsigned) *src); |
07dc1f9f HL |
370 | ++src; /* skip leading 0x00 */ |
371 | --numbytes; | |
372 | if (gigaset_fill_inbuf(inbuf, src, numbytes)) { | |
784d5858 | 373 | gig_dbg(DEBUG_INTR, "%s-->BH", __func__); |
07dc1f9f HL |
374 | gigaset_schedule_event(inbuf->cs); |
375 | } | |
376 | } else | |
784d5858 | 377 | gig_dbg(DEBUG_INTR, "Received zero block length"); |
07dc1f9f HL |
378 | } else { |
379 | /* The urb might have been killed. */ | |
c652cbd8 | 380 | gig_dbg(DEBUG_ANY, "%s - nonzero status received: %d", |
dbd98231 | 381 | __func__, status); |
c652cbd8 TS |
382 | if (status == -ENOENT || status == -ESHUTDOWN) |
383 | /* killed or endpoint shutdown: don't resubmit */ | |
384 | return; | |
07dc1f9f | 385 | } |
784d5858 | 386 | |
c652cbd8 TS |
387 | /* resubmit URB */ |
388 | spin_lock_irqsave(&cs->lock, flags); | |
389 | if (!cs->connected) { | |
69049cc8 | 390 | spin_unlock_irqrestore(&cs->lock, flags); |
c8770dca | 391 | pr_err("%s: disconnected\n", __func__); |
c652cbd8 | 392 | return; |
07dc1f9f | 393 | } |
c652cbd8 TS |
394 | r = usb_submit_urb(urb, GFP_ATOMIC); |
395 | spin_unlock_irqrestore(&cs->lock, flags); | |
396 | if (r) | |
397 | dev_err(cs->dev, "error %d resubmitting URB\n", -r); | |
07dc1f9f HL |
398 | } |
399 | ||
400 | ||
917f5085 | 401 | /* This callback routine is called when data was transmitted to the device. */ |
7d12e780 | 402 | static void gigaset_write_bulk_callback(struct urb *urb) |
07dc1f9f | 403 | { |
d48c7784 | 404 | struct cardstate *cs = urb->context; |
dbd98231 | 405 | int status = urb->status; |
69049cc8 | 406 | unsigned long flags; |
07dc1f9f | 407 | |
c652cbd8 TS |
408 | switch (status) { |
409 | case 0: /* normal completion */ | |
410 | break; | |
411 | case -ENOENT: /* killed */ | |
412 | gig_dbg(DEBUG_ANY, "%s: killed", __func__); | |
9d4bee2b | 413 | cs->hw.usb->busy = 0; |
c652cbd8 TS |
414 | return; |
415 | default: | |
784d5858 | 416 | dev_err(cs->dev, "bulk transfer failed (status %d)\n", |
dbd98231 | 417 | -status); |
917f5085 | 418 | /* That's all we can do. Communication problems |
784d5858 | 419 | are handled by timeouts or network protocols. */ |
c652cbd8 | 420 | } |
07dc1f9f | 421 | |
69049cc8 TS |
422 | spin_lock_irqsave(&cs->lock, flags); |
423 | if (!cs->connected) { | |
c8770dca | 424 | pr_err("%s: disconnected\n", __func__); |
69049cc8 | 425 | } else { |
9d4bee2b | 426 | cs->hw.usb->busy = 0; |
69049cc8 TS |
427 | tasklet_schedule(&cs->write_tasklet); |
428 | } | |
429 | spin_unlock_irqrestore(&cs->lock, flags); | |
07dc1f9f HL |
430 | } |
431 | ||
432 | static int send_cb(struct cardstate *cs, struct cmdbuf_t *cb) | |
433 | { | |
434 | struct cmdbuf_t *tcb; | |
435 | unsigned long flags; | |
436 | int count; | |
2032e2c2 | 437 | int status = -ENOENT; |
07dc1f9f HL |
438 | struct usb_cardstate *ucs = cs->hw.usb; |
439 | ||
440 | do { | |
441 | if (!cb->len) { | |
442 | tcb = cb; | |
443 | ||
444 | spin_lock_irqsave(&cs->cmdlock, flags); | |
445 | cs->cmdbytes -= cs->curlen; | |
784d5858 TS |
446 | gig_dbg(DEBUG_OUTPUT, "send_cb: sent %u bytes, %u left", |
447 | cs->curlen, cs->cmdbytes); | |
07dc1f9f HL |
448 | cs->cmdbuf = cb = cb->next; |
449 | if (cb) { | |
450 | cb->prev = NULL; | |
451 | cs->curlen = cb->len; | |
452 | } else { | |
453 | cs->lastcmdbuf = NULL; | |
454 | cs->curlen = 0; | |
455 | } | |
456 | spin_unlock_irqrestore(&cs->cmdlock, flags); | |
457 | ||
458 | if (tcb->wake_tasklet) | |
459 | tasklet_schedule(tcb->wake_tasklet); | |
460 | kfree(tcb); | |
461 | } | |
462 | if (cb) { | |
463 | count = min(cb->len, ucs->bulk_out_size); | |
69049cc8 TS |
464 | gig_dbg(DEBUG_OUTPUT, "send_cb: send %d bytes", count); |
465 | ||
07dc1f9f | 466 | usb_fill_bulk_urb(ucs->bulk_out_urb, ucs->udev, |
784d5858 | 467 | usb_sndbulkpipe(ucs->udev, |
475be4d8 | 468 | ucs->bulk_out_endpointAddr & 0x0f), |
784d5858 TS |
469 | cb->buf + cb->offset, count, |
470 | gigaset_write_bulk_callback, cs); | |
07dc1f9f HL |
471 | |
472 | cb->offset += count; | |
473 | cb->len -= count; | |
9d4bee2b | 474 | ucs->busy = 1; |
07dc1f9f | 475 | |
69049cc8 | 476 | spin_lock_irqsave(&cs->lock, flags); |
2032e2c2 TS |
477 | status = cs->connected ? |
478 | usb_submit_urb(ucs->bulk_out_urb, GFP_ATOMIC) : | |
479 | -ENODEV; | |
69049cc8 TS |
480 | spin_unlock_irqrestore(&cs->lock, flags); |
481 | ||
07dc1f9f | 482 | if (status) { |
9d4bee2b | 483 | ucs->busy = 0; |
5002779d TS |
484 | dev_err(cs->dev, |
485 | "could not submit urb (error %d)\n", | |
486 | -status); | |
917f5085 TS |
487 | cb->len = 0; /* skip urb => remove cb+wakeup |
488 | in next loop cycle */ | |
07dc1f9f HL |
489 | } |
490 | } | |
917f5085 | 491 | } while (cb && status); /* next command on error */ |
07dc1f9f HL |
492 | |
493 | return status; | |
494 | } | |
495 | ||
917f5085 | 496 | /* Send command to device. */ |
e3628dd1 | 497 | static int gigaset_write_cmd(struct cardstate *cs, struct cmdbuf_t *cb) |
07dc1f9f | 498 | { |
07dc1f9f HL |
499 | unsigned long flags; |
500 | ||
9d4bee2b | 501 | gigaset_dbg_buffer(cs->mstate != MS_LOCKED ? |
475be4d8 | 502 | DEBUG_TRANSCMD : DEBUG_LOCKCMD, |
e3628dd1 | 503 | "CMD Transmit", cb->len, cb->buf); |
07dc1f9f HL |
504 | |
505 | spin_lock_irqsave(&cs->cmdlock, flags); | |
506 | cb->prev = cs->lastcmdbuf; | |
507 | if (cs->lastcmdbuf) | |
508 | cs->lastcmdbuf->next = cb; | |
509 | else { | |
510 | cs->cmdbuf = cb; | |
e3628dd1 | 511 | cs->curlen = cb->len; |
07dc1f9f | 512 | } |
e3628dd1 | 513 | cs->cmdbytes += cb->len; |
07dc1f9f HL |
514 | cs->lastcmdbuf = cb; |
515 | spin_unlock_irqrestore(&cs->cmdlock, flags); | |
516 | ||
69049cc8 TS |
517 | spin_lock_irqsave(&cs->lock, flags); |
518 | if (cs->connected) | |
519 | tasklet_schedule(&cs->write_tasklet); | |
520 | spin_unlock_irqrestore(&cs->lock, flags); | |
e3628dd1 | 521 | return cb->len; |
07dc1f9f HL |
522 | } |
523 | ||
524 | static int gigaset_write_room(struct cardstate *cs) | |
525 | { | |
07dc1f9f HL |
526 | unsigned bytes; |
527 | ||
07dc1f9f | 528 | bytes = cs->cmdbytes; |
07dc1f9f HL |
529 | return bytes < IF_WRITEBUF ? IF_WRITEBUF - bytes : 0; |
530 | } | |
531 | ||
532 | static int gigaset_chars_in_buffer(struct cardstate *cs) | |
533 | { | |
534 | return cs->cmdbytes; | |
535 | } | |
536 | ||
b88bd956 TS |
537 | /* |
538 | * set the break characters on the internal serial adapter | |
539 | * using undocumented device commands reverse engineered from USB traces | |
540 | * of the Siemens Windows driver | |
541 | */ | |
07dc1f9f HL |
542 | static int gigaset_brkchars(struct cardstate *cs, const unsigned char buf[6]) |
543 | { | |
784d5858 TS |
544 | struct usb_device *udev = cs->hw.usb->udev; |
545 | ||
01371500 | 546 | gigaset_dbg_buffer(DEBUG_USBREQ, "brkchars", 6, buf); |
07dc1f9f | 547 | memcpy(cs->hw.usb->bchars, buf, 6); |
784d5858 TS |
548 | return usb_control_msg(udev, usb_sndctrlpipe(udev, 0), 0x19, 0x41, |
549 | 0, 0, &buf, 6, 2000); | |
07dc1f9f HL |
550 | } |
551 | ||
81fa7b82 | 552 | static void gigaset_freebcshw(struct bc_state *bcs) |
07dc1f9f | 553 | { |
21d36495 | 554 | /* unused */ |
07dc1f9f HL |
555 | } |
556 | ||
557 | /* Initialize the b-channel structure */ | |
558 | static int gigaset_initbcshw(struct bc_state *bcs) | |
559 | { | |
21d36495 TS |
560 | /* unused */ |
561 | bcs->hw.usb = NULL; | |
81fa7b82 | 562 | return 0; |
07dc1f9f HL |
563 | } |
564 | ||
565 | static void gigaset_reinitbcshw(struct bc_state *bcs) | |
566 | { | |
21d36495 | 567 | /* nothing to do for M10x */ |
07dc1f9f HL |
568 | } |
569 | ||
570 | static void gigaset_freecshw(struct cardstate *cs) | |
571 | { | |
07dc1f9f HL |
572 | tasklet_kill(&cs->write_tasklet); |
573 | kfree(cs->hw.usb); | |
574 | } | |
575 | ||
576 | static int gigaset_initcshw(struct cardstate *cs) | |
577 | { | |
578 | struct usb_cardstate *ucs; | |
579 | ||
580 | cs->hw.usb = ucs = | |
581 | kmalloc(sizeof(struct usb_cardstate), GFP_KERNEL); | |
c8770dca TS |
582 | if (!ucs) { |
583 | pr_err("out of memory\n"); | |
81fa7b82 | 584 | return -ENOMEM; |
c8770dca | 585 | } |
07dc1f9f HL |
586 | |
587 | ucs->bchars[0] = 0; | |
588 | ucs->bchars[1] = 0; | |
589 | ucs->bchars[2] = 0; | |
590 | ucs->bchars[3] = 0; | |
591 | ucs->bchars[4] = 0x11; | |
592 | ucs->bchars[5] = 0x13; | |
593 | ucs->bulk_out_buffer = NULL; | |
594 | ucs->bulk_out_urb = NULL; | |
07dc1f9f HL |
595 | ucs->read_urb = NULL; |
596 | tasklet_init(&cs->write_tasklet, | |
5452fee2 | 597 | gigaset_modem_fill, (unsigned long) cs); |
07dc1f9f | 598 | |
81fa7b82 | 599 | return 0; |
07dc1f9f HL |
600 | } |
601 | ||
917f5085 | 602 | /* Send data from current skb to the device. */ |
07dc1f9f HL |
603 | static int write_modem(struct cardstate *cs) |
604 | { | |
d48c7784 | 605 | int ret = 0; |
07dc1f9f HL |
606 | int count; |
607 | struct bc_state *bcs = &cs->bcs[0]; /* only one channel */ | |
608 | struct usb_cardstate *ucs = cs->hw.usb; | |
69049cc8 | 609 | unsigned long flags; |
07dc1f9f | 610 | |
1528b18f | 611 | gig_dbg(DEBUG_OUTPUT, "len: %d...", bcs->tx_skb->len); |
07dc1f9f | 612 | |
07dc1f9f HL |
613 | if (!bcs->tx_skb->len) { |
614 | dev_kfree_skb_any(bcs->tx_skb); | |
615 | bcs->tx_skb = NULL; | |
616 | return -EINVAL; | |
617 | } | |
618 | ||
2032e2c2 | 619 | /* Copy data to bulk out buffer and transmit data */ |
07dc1f9f | 620 | count = min(bcs->tx_skb->len, (unsigned) ucs->bulk_out_size); |
d626f62b | 621 | skb_copy_from_linear_data(bcs->tx_skb, ucs->bulk_out_buffer, count); |
07dc1f9f | 622 | skb_pull(bcs->tx_skb, count); |
9d4bee2b | 623 | ucs->busy = 1; |
784d5858 | 624 | gig_dbg(DEBUG_OUTPUT, "write_modem: send %d bytes", count); |
07dc1f9f | 625 | |
69049cc8 TS |
626 | spin_lock_irqsave(&cs->lock, flags); |
627 | if (cs->connected) { | |
628 | usb_fill_bulk_urb(ucs->bulk_out_urb, ucs->udev, | |
629 | usb_sndbulkpipe(ucs->udev, | |
2032e2c2 TS |
630 | ucs->bulk_out_endpointAddr & |
631 | 0x0f), | |
69049cc8 TS |
632 | ucs->bulk_out_buffer, count, |
633 | gigaset_write_bulk_callback, cs); | |
54e6ecb2 | 634 | ret = usb_submit_urb(ucs->bulk_out_urb, GFP_ATOMIC); |
69049cc8 TS |
635 | } else { |
636 | ret = -ENODEV; | |
637 | } | |
638 | spin_unlock_irqrestore(&cs->lock, flags); | |
639 | ||
07dc1f9f | 640 | if (ret) { |
5002779d | 641 | dev_err(cs->dev, "could not submit urb (error %d)\n", -ret); |
9d4bee2b | 642 | ucs->busy = 0; |
07dc1f9f | 643 | } |
69049cc8 | 644 | |
07dc1f9f HL |
645 | if (!bcs->tx_skb->len) { |
646 | /* skb sent completely */ | |
2032e2c2 | 647 | gigaset_skb_sent(bcs, bcs->tx_skb); |
07dc1f9f | 648 | |
784d5858 TS |
649 | gig_dbg(DEBUG_INTR, "kfree skb (Adr: %lx)!", |
650 | (unsigned long) bcs->tx_skb); | |
07dc1f9f HL |
651 | dev_kfree_skb_any(bcs->tx_skb); |
652 | bcs->tx_skb = NULL; | |
653 | } | |
654 | ||
655 | return ret; | |
07dc1f9f HL |
656 | } |
657 | ||
658 | static int gigaset_probe(struct usb_interface *interface, | |
784d5858 | 659 | const struct usb_device_id *id) |
07dc1f9f HL |
660 | { |
661 | int retval; | |
662 | struct usb_device *udev = interface_to_usbdev(interface); | |
c652cbd8 | 663 | struct usb_host_interface *hostif = interface->cur_altsetting; |
07dc1f9f HL |
664 | struct cardstate *cs = NULL; |
665 | struct usb_cardstate *ucs = NULL; | |
07dc1f9f | 666 | struct usb_endpoint_descriptor *endpoint; |
07dc1f9f | 667 | int buffer_size; |
07dc1f9f | 668 | |
c652cbd8 | 669 | gig_dbg(DEBUG_ANY, "%s: Check if device matches ...", __func__); |
07dc1f9f HL |
670 | |
671 | /* See if the device offered us matches what we can accept */ | |
bfe2e934 | 672 | if ((le16_to_cpu(udev->descriptor.idVendor) != USB_M105_VENDOR_ID) || |
c652cbd8 TS |
673 | (le16_to_cpu(udev->descriptor.idProduct) != USB_M105_PRODUCT_ID)) { |
674 | gig_dbg(DEBUG_ANY, "device ID (0x%x, 0x%x) not for me - skip", | |
675 | le16_to_cpu(udev->descriptor.idVendor), | |
676 | le16_to_cpu(udev->descriptor.idProduct)); | |
07dc1f9f | 677 | return -ENODEV; |
c652cbd8 TS |
678 | } |
679 | if (hostif->desc.bInterfaceNumber != 0) { | |
680 | gig_dbg(DEBUG_ANY, "interface %d not for me - skip", | |
681 | hostif->desc.bInterfaceNumber); | |
682 | return -ENODEV; | |
683 | } | |
684 | if (hostif->desc.bAlternateSetting != 0) { | |
685 | dev_notice(&udev->dev, "unsupported altsetting %d - skip", | |
686 | hostif->desc.bAlternateSetting); | |
07dc1f9f HL |
687 | return -ENODEV; |
688 | } | |
07dc1f9f | 689 | if (hostif->desc.bInterfaceClass != 255) { |
c652cbd8 TS |
690 | dev_notice(&udev->dev, "unsupported interface class %d - skip", |
691 | hostif->desc.bInterfaceClass); | |
07dc1f9f HL |
692 | return -ENODEV; |
693 | } | |
694 | ||
784d5858 | 695 | dev_info(&udev->dev, "%s: Device matched ... !\n", __func__); |
07dc1f9f | 696 | |
b595076a | 697 | /* allocate memory for our device state and initialize it */ |
e468c048 TS |
698 | cs = gigaset_initcs(driver, 1, 1, 0, cidmode, GIGASET_MODULENAME); |
699 | if (!cs) | |
07dc1f9f | 700 | return -ENODEV; |
07dc1f9f HL |
701 | ucs = cs->hw.usb; |
702 | ||
784d5858 TS |
703 | /* save off device structure ptrs for later use */ |
704 | usb_get_dev(udev); | |
705 | ucs->udev = udev; | |
706 | ucs->interface = interface; | |
b1d47464 TS |
707 | cs->dev = &interface->dev; |
708 | ||
709 | /* save address of controller structure */ | |
b88bd956 | 710 | usb_set_intfdata(interface, cs); |
784d5858 | 711 | |
07dc1f9f HL |
712 | endpoint = &hostif->endpoint[0].desc; |
713 | ||
714 | buffer_size = le16_to_cpu(endpoint->wMaxPacketSize); | |
715 | ucs->bulk_out_size = buffer_size; | |
716 | ucs->bulk_out_endpointAddr = endpoint->bEndpointAddress; | |
717 | ucs->bulk_out_buffer = kmalloc(buffer_size, GFP_KERNEL); | |
718 | if (!ucs->bulk_out_buffer) { | |
784d5858 | 719 | dev_err(cs->dev, "Couldn't allocate bulk_out_buffer\n"); |
07dc1f9f HL |
720 | retval = -ENOMEM; |
721 | goto error; | |
722 | } | |
723 | ||
e94b1766 | 724 | ucs->bulk_out_urb = usb_alloc_urb(0, GFP_KERNEL); |
07dc1f9f | 725 | if (!ucs->bulk_out_urb) { |
784d5858 | 726 | dev_err(cs->dev, "Couldn't allocate bulk_out_urb\n"); |
07dc1f9f HL |
727 | retval = -ENOMEM; |
728 | goto error; | |
729 | } | |
730 | ||
731 | endpoint = &hostif->endpoint[1].desc; | |
732 | ||
9d4bee2b | 733 | ucs->busy = 0; |
07dc1f9f | 734 | |
e94b1766 | 735 | ucs->read_urb = usb_alloc_urb(0, GFP_KERNEL); |
07dc1f9f | 736 | if (!ucs->read_urb) { |
784d5858 | 737 | dev_err(cs->dev, "No free urbs available\n"); |
07dc1f9f HL |
738 | retval = -ENOMEM; |
739 | goto error; | |
740 | } | |
741 | buffer_size = le16_to_cpu(endpoint->wMaxPacketSize); | |
742 | ucs->rcvbuf_size = buffer_size; | |
2032e2c2 TS |
743 | ucs->rcvbuf = kmalloc(buffer_size, GFP_KERNEL); |
744 | if (!ucs->rcvbuf) { | |
784d5858 | 745 | dev_err(cs->dev, "Couldn't allocate rcvbuf\n"); |
07dc1f9f HL |
746 | retval = -ENOMEM; |
747 | goto error; | |
748 | } | |
749 | /* Fill the interrupt urb and send it to the core */ | |
750 | usb_fill_int_urb(ucs->read_urb, udev, | |
784d5858 | 751 | usb_rcvintpipe(udev, |
f1898a0e | 752 | usb_endpoint_num(endpoint)), |
2032e2c2 | 753 | ucs->rcvbuf, buffer_size, |
784d5858 | 754 | gigaset_read_int_callback, |
2032e2c2 | 755 | cs, endpoint->bInterval); |
07dc1f9f | 756 | |
e94b1766 | 757 | retval = usb_submit_urb(ucs->read_urb, GFP_KERNEL); |
07dc1f9f | 758 | if (retval) { |
784d5858 | 759 | dev_err(cs->dev, "Could not submit URB (error %d)\n", -retval); |
07dc1f9f HL |
760 | goto error; |
761 | } | |
762 | ||
763 | /* tell common part that the device is ready */ | |
764 | if (startmode == SM_LOCKED) | |
9d4bee2b | 765 | cs->mstate = MS_LOCKED; |
b1d47464 | 766 | |
81fa7b82 TS |
767 | retval = gigaset_start(cs); |
768 | if (retval < 0) { | |
07dc1f9f | 769 | tasklet_kill(&cs->write_tasklet); |
07dc1f9f HL |
770 | goto error; |
771 | } | |
07dc1f9f HL |
772 | return 0; |
773 | ||
774 | error: | |
ead54fcd | 775 | usb_kill_urb(ucs->read_urb); |
07dc1f9f | 776 | kfree(ucs->bulk_out_buffer); |
ead54fcd | 777 | usb_free_urb(ucs->bulk_out_urb); |
2032e2c2 | 778 | kfree(ucs->rcvbuf); |
ead54fcd | 779 | usb_free_urb(ucs->read_urb); |
b1d47464 | 780 | usb_set_intfdata(interface, NULL); |
07dc1f9f | 781 | ucs->read_urb = ucs->bulk_out_urb = NULL; |
2032e2c2 | 782 | ucs->rcvbuf = ucs->bulk_out_buffer = NULL; |
784d5858 TS |
783 | usb_put_dev(ucs->udev); |
784 | ucs->udev = NULL; | |
785 | ucs->interface = NULL; | |
e468c048 | 786 | gigaset_freecs(cs); |
07dc1f9f HL |
787 | return retval; |
788 | } | |
789 | ||
07dc1f9f HL |
790 | static void gigaset_disconnect(struct usb_interface *interface) |
791 | { | |
792 | struct cardstate *cs; | |
793 | struct usb_cardstate *ucs; | |
794 | ||
795 | cs = usb_get_intfdata(interface); | |
07dc1f9f | 796 | ucs = cs->hw.usb; |
c652cbd8 TS |
797 | |
798 | dev_info(cs->dev, "disconnecting Gigaset USB adapter\n"); | |
799 | ||
07dc1f9f | 800 | usb_kill_urb(ucs->read_urb); |
07dc1f9f HL |
801 | |
802 | gigaset_stop(cs); | |
803 | ||
b1d47464 | 804 | usb_set_intfdata(interface, NULL); |
07dc1f9f HL |
805 | tasklet_kill(&cs->write_tasklet); |
806 | ||
c652cbd8 | 807 | usb_kill_urb(ucs->bulk_out_urb); |
07dc1f9f HL |
808 | |
809 | kfree(ucs->bulk_out_buffer); | |
ead54fcd | 810 | usb_free_urb(ucs->bulk_out_urb); |
2032e2c2 | 811 | kfree(ucs->rcvbuf); |
ead54fcd | 812 | usb_free_urb(ucs->read_urb); |
917f5085 | 813 | ucs->read_urb = ucs->bulk_out_urb = NULL; |
2032e2c2 | 814 | ucs->rcvbuf = ucs->bulk_out_buffer = NULL; |
07dc1f9f | 815 | |
b1d47464 TS |
816 | usb_put_dev(ucs->udev); |
817 | ucs->interface = NULL; | |
818 | ucs->udev = NULL; | |
819 | cs->dev = NULL; | |
e468c048 | 820 | gigaset_freecs(cs); |
07dc1f9f HL |
821 | } |
822 | ||
1ff0a529 TS |
823 | /* gigaset_suspend |
824 | * This function is called before the USB connection is suspended or reset. | |
825 | */ | |
826 | static int gigaset_suspend(struct usb_interface *intf, pm_message_t message) | |
827 | { | |
828 | struct cardstate *cs = usb_get_intfdata(intf); | |
829 | ||
830 | /* stop activity */ | |
831 | cs->connected = 0; /* prevent rescheduling */ | |
832 | usb_kill_urb(cs->hw.usb->read_urb); | |
833 | tasklet_kill(&cs->write_tasklet); | |
834 | usb_kill_urb(cs->hw.usb->bulk_out_urb); | |
835 | ||
836 | gig_dbg(DEBUG_SUSPEND, "suspend complete"); | |
837 | return 0; | |
838 | } | |
839 | ||
840 | /* gigaset_resume | |
841 | * This function is called after the USB connection has been resumed or reset. | |
842 | */ | |
843 | static int gigaset_resume(struct usb_interface *intf) | |
844 | { | |
845 | struct cardstate *cs = usb_get_intfdata(intf); | |
846 | int rc; | |
847 | ||
848 | /* resubmit interrupt URB */ | |
849 | cs->connected = 1; | |
850 | rc = usb_submit_urb(cs->hw.usb->read_urb, GFP_KERNEL); | |
851 | if (rc) { | |
852 | dev_err(cs->dev, "Could not submit read URB (error %d)\n", -rc); | |
853 | return rc; | |
854 | } | |
855 | ||
856 | gig_dbg(DEBUG_SUSPEND, "resume complete"); | |
857 | return 0; | |
858 | } | |
859 | ||
860 | /* gigaset_pre_reset | |
861 | * This function is called before the USB connection is reset. | |
862 | */ | |
863 | static int gigaset_pre_reset(struct usb_interface *intf) | |
864 | { | |
865 | /* same as suspend */ | |
866 | return gigaset_suspend(intf, PMSG_ON); | |
867 | } | |
868 | ||
35dc8457 | 869 | static const struct gigaset_ops ops = { |
07dc1f9f HL |
870 | gigaset_write_cmd, |
871 | gigaset_write_room, | |
872 | gigaset_chars_in_buffer, | |
873 | gigaset_brkchars, | |
874 | gigaset_init_bchannel, | |
875 | gigaset_close_bchannel, | |
876 | gigaset_initbcshw, | |
877 | gigaset_freebcshw, | |
878 | gigaset_reinitbcshw, | |
879 | gigaset_initcshw, | |
880 | gigaset_freecshw, | |
881 | gigaset_set_modem_ctrl, | |
882 | gigaset_baud_rate, | |
883 | gigaset_set_line_ctrl, | |
884 | gigaset_m10x_send_skb, | |
885 | gigaset_m10x_input, | |
886 | }; | |
887 | ||
b88bd956 | 888 | /* |
07dc1f9f HL |
889 | * This function is called while kernel-module is loaded |
890 | */ | |
891 | static int __init usb_gigaset_init(void) | |
892 | { | |
893 | int result; | |
894 | ||
b595076a | 895 | /* allocate memory for our driver state and initialize it */ |
2032e2c2 TS |
896 | driver = gigaset_initdriver(GIGASET_MINOR, GIGASET_MINORS, |
897 | GIGASET_MODULENAME, GIGASET_DEVNAME, | |
898 | &ops, THIS_MODULE); | |
81fa7b82 TS |
899 | if (driver == NULL) { |
900 | result = -ENOMEM; | |
07dc1f9f | 901 | goto error; |
81fa7b82 | 902 | } |
07dc1f9f | 903 | |
07dc1f9f HL |
904 | /* register this driver with the USB subsystem */ |
905 | result = usb_register(&gigaset_usb_driver); | |
906 | if (result < 0) { | |
c8770dca | 907 | pr_err("error %d registering USB driver\n", -result); |
07dc1f9f HL |
908 | goto error; |
909 | } | |
910 | ||
c8770dca | 911 | pr_info(DRIVER_DESC "\n"); |
07dc1f9f HL |
912 | return 0; |
913 | ||
e468c048 | 914 | error: |
07dc1f9f HL |
915 | if (driver) |
916 | gigaset_freedriver(driver); | |
917 | driver = NULL; | |
81fa7b82 | 918 | return result; |
07dc1f9f HL |
919 | } |
920 | ||
b88bd956 | 921 | /* |
07dc1f9f HL |
922 | * This function is called while unloading the kernel-module |
923 | */ | |
924 | static void __exit usb_gigaset_exit(void) | |
925 | { | |
e468c048 TS |
926 | int i; |
927 | ||
07dc1f9f | 928 | gigaset_blockdriver(driver); /* => probe will fail |
784d5858 TS |
929 | * => no gigaset_start any more |
930 | */ | |
07dc1f9f | 931 | |
e468c048 TS |
932 | /* stop all connected devices */ |
933 | for (i = 0; i < driver->minors; i++) | |
934 | gigaset_shutdown(driver->cs + i); | |
935 | ||
07dc1f9f HL |
936 | /* from now on, no isdn callback should be possible */ |
937 | ||
938 | /* deregister this driver with the USB subsystem */ | |
939 | usb_deregister(&gigaset_usb_driver); | |
940 | /* this will call the disconnect-callback */ | |
941 | /* from now on, no disconnect/probe callback should be running */ | |
942 | ||
07dc1f9f HL |
943 | gigaset_freedriver(driver); |
944 | driver = NULL; | |
945 | } | |
946 | ||
947 | ||
948 | module_init(usb_gigaset_init); | |
949 | module_exit(usb_gigaset_exit); | |
950 | ||
951 | MODULE_AUTHOR(DRIVER_AUTHOR); | |
952 | MODULE_DESCRIPTION(DRIVER_DESC); | |
953 | ||
954 | MODULE_LICENSE("GPL"); |