Commit | Line | Data |
---|---|---|
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" | |
19 | ||
20 | #include <linux/errno.h> | |
21 | #include <linux/init.h> | |
22 | #include <linux/slab.h> | |
23 | #include <linux/usb.h> | |
24 | #include <linux/module.h> | |
25 | #include <linux/moduleparam.h> | |
26 | ||
27 | /* Version Information */ | |
70440cf2 | 28 | #define DRIVER_AUTHOR "Hansjoerg Lipp <hjlipp@web.de>, Stefan Eilers" |
07dc1f9f HL |
29 | #define DRIVER_DESC "USB Driver for Gigaset 307x using M105" |
30 | ||
31 | /* Module parameters */ | |
32 | ||
33 | static int startmode = SM_ISDN; | |
34 | static int cidmode = 1; | |
35 | ||
36 | module_param(startmode, int, S_IRUGO); | |
37 | module_param(cidmode, int, S_IRUGO); | |
38 | MODULE_PARM_DESC(startmode, "start in isdn4linux mode"); | |
39 | MODULE_PARM_DESC(cidmode, "Call-ID mode"); | |
40 | ||
41 | #define GIGASET_MINORS 1 | |
42 | #define GIGASET_MINOR 8 | |
43 | #define GIGASET_MODULENAME "usb_gigaset" | |
07dc1f9f HL |
44 | #define GIGASET_DEVNAME "ttyGU" |
45 | ||
46 | #define IF_WRITEBUF 2000 //FIXME // WAKEUP_CHARS: 256 | |
47 | ||
48 | /* Values for the Gigaset M105 Data */ | |
49 | #define USB_M105_VENDOR_ID 0x0681 | |
50 | #define USB_M105_PRODUCT_ID 0x0009 | |
51 | ||
52 | /* table of devices that work with this driver */ | |
35dc8457 | 53 | static const struct usb_device_id gigaset_table [] = { |
07dc1f9f HL |
54 | { USB_DEVICE(USB_M105_VENDOR_ID, USB_M105_PRODUCT_ID) }, |
55 | { } /* Terminating entry */ | |
56 | }; | |
57 | ||
58 | MODULE_DEVICE_TABLE(usb, gigaset_table); | |
59 | ||
07dc1f9f HL |
60 | /* |
61 | * Control requests (empty fields: 00) | |
62 | * | |
63 | * RT|RQ|VALUE|INDEX|LEN |DATA | |
64 | * In: | |
65 | * C1 08 01 | |
66 | * Get flags (1 byte). Bits: 0=dtr,1=rts,3-7:? | |
67 | * C1 0F ll ll | |
68 | * Get device information/status (llll: 0x200 and 0x40 seen). | |
69 | * Real size: I only saw MIN(llll,0x64). | |
70 | * Contents: seems to be always the same... | |
71 | * offset 0x00: Length of this structure (0x64) (len: 1,2,3 bytes) | |
72 | * offset 0x3c: String (16 bit chars): "MCCI USB Serial V2.0" | |
73 | * rest: ? | |
74 | * Out: | |
75 | * 41 11 | |
76 | * Initialize/reset device ? | |
77 | * 41 00 xx 00 | |
78 | * ? (xx=00 or 01; 01 on start, 00 on close) | |
79 | * 41 07 vv mm | |
80 | * Set/clear flags vv=value, mm=mask (see RQ 08) | |
81 | * 41 12 xx | |
82 | * Used before the following configuration requests are issued | |
83 | * (with xx=0x0f). I've seen other values<0xf, though. | |
84 | * 41 01 xx xx | |
85 | * Set baud rate. xxxx=ceil(0x384000/rate)=trunc(0x383fff/rate)+1. | |
86 | * 41 03 ps bb | |
87 | * Set byte size and parity. p: 0x20=even,0x10=odd,0x00=no parity | |
88 | * [ 0x30: m, 0x40: s ] | |
89 | * [s: 0: 1 stop bit; 1: 1.5; 2: 2] | |
90 | * bb: bits/byte (seen 7 and 8) | |
91 | * 41 13 -- -- -- -- 10 00 ww 00 00 00 xx 00 00 00 yy 00 00 00 zz 00 00 00 | |
92 | * ?? | |
93 | * Initialization: 01, 40, 00, 00 | |
94 | * Open device: 00 40, 00, 00 | |
95 | * yy and zz seem to be equal, either 0x00 or 0x0a | |
96 | * (ww,xx) pairs seen: (00,00), (00,40), (01,40), (09,80), (19,80) | |
97 | * 41 19 -- -- -- -- 06 00 00 00 00 xx 11 13 | |
98 | * Used after every "configuration sequence" (RQ 12, RQs 01/03/13). | |
99 | * xx is usually 0x00 but was 0x7e before starting data transfer | |
100 | * in unimodem mode. So, this might be an array of characters that need | |
101 | * special treatment ("commit all bufferd data"?), 11=^Q, 13=^S. | |
102 | * | |
103 | * Unimodem mode: use "modprobe ppp_async flag_time=0" as the device _needs_ two | |
104 | * flags per packet. | |
105 | */ | |
106 | ||
c652cbd8 | 107 | /* functions called if a device of this driver is connected/disconnected */ |
07dc1f9f | 108 | static int gigaset_probe(struct usb_interface *interface, |
784d5858 | 109 | const struct usb_device_id *id); |
07dc1f9f HL |
110 | static void gigaset_disconnect(struct usb_interface *interface); |
111 | ||
1ff0a529 TS |
112 | /* functions called before/after suspend */ |
113 | static int gigaset_suspend(struct usb_interface *intf, pm_message_t message); | |
114 | static int gigaset_resume(struct usb_interface *intf); | |
115 | static int gigaset_pre_reset(struct usb_interface *intf); | |
116 | ||
07dc1f9f | 117 | static struct gigaset_driver *driver = NULL; |
07dc1f9f HL |
118 | |
119 | /* usb specific object needed to register this driver with the usb subsystem */ | |
120 | static struct usb_driver gigaset_usb_driver = { | |
917f5085 TS |
121 | .name = GIGASET_MODULENAME, |
122 | .probe = gigaset_probe, | |
123 | .disconnect = gigaset_disconnect, | |
124 | .id_table = gigaset_table, | |
1ff0a529 TS |
125 | .suspend = gigaset_suspend, |
126 | .resume = gigaset_resume, | |
127 | .reset_resume = gigaset_resume, | |
128 | .pre_reset = gigaset_pre_reset, | |
129 | .post_reset = gigaset_resume, | |
07dc1f9f HL |
130 | }; |
131 | ||
132 | struct usb_cardstate { | |
917f5085 TS |
133 | struct usb_device *udev; /* usb device pointer */ |
134 | struct usb_interface *interface; /* interface for this device */ | |
9d4bee2b | 135 | int busy; /* bulk output in progress */ |
917f5085 TS |
136 | |
137 | /* Output buffer */ | |
784d5858 TS |
138 | unsigned char *bulk_out_buffer; |
139 | int bulk_out_size; | |
140 | __u8 bulk_out_endpointAddr; | |
141 | struct urb *bulk_out_urb; | |
917f5085 TS |
142 | |
143 | /* Input buffer */ | |
784d5858 TS |
144 | int rcvbuf_size; |
145 | struct urb *read_urb; | |
146 | __u8 int_in_endpointAddr; | |
917f5085 | 147 | |
784d5858 | 148 | char bchars[6]; /* for request 0x19 */ |
07dc1f9f HL |
149 | }; |
150 | ||
07dc1f9f HL |
151 | static inline unsigned tiocm_to_gigaset(unsigned state) |
152 | { | |
153 | return ((state & TIOCM_DTR) ? 1 : 0) | ((state & TIOCM_RTS) ? 2 : 0); | |
154 | } | |
155 | ||
156 | #ifdef CONFIG_GIGASET_UNDOCREQ | |
157 | /* WARNING: EXPERIMENTAL! */ | |
158 | static int gigaset_set_modem_ctrl(struct cardstate *cs, unsigned old_state, | |
784d5858 | 159 | unsigned new_state) |
07dc1f9f | 160 | { |
784d5858 | 161 | struct usb_device *udev = cs->hw.usb->udev; |
07dc1f9f HL |
162 | unsigned mask, val; |
163 | int r; | |
164 | ||
165 | mask = tiocm_to_gigaset(old_state ^ new_state); | |
166 | val = tiocm_to_gigaset(new_state); | |
167 | ||
784d5858 | 168 | gig_dbg(DEBUG_USBREQ, "set flags 0x%02x with mask 0x%02x", val, mask); |
917f5085 | 169 | // don't use this in an interrupt/BH |
784d5858 TS |
170 | r = usb_control_msg(udev, usb_sndctrlpipe(udev, 0), 7, 0x41, |
171 | (val & 0xff) | ((mask & 0xff) << 8), 0, | |
172 | NULL, 0, 2000 /* timeout? */); | |
07dc1f9f HL |
173 | if (r < 0) |
174 | return r; | |
175 | //.. | |
176 | return 0; | |
177 | } | |
178 | ||
179 | static int set_value(struct cardstate *cs, u8 req, u16 val) | |
180 | { | |
784d5858 | 181 | struct usb_device *udev = cs->hw.usb->udev; |
07dc1f9f HL |
182 | int r, r2; |
183 | ||
784d5858 TS |
184 | gig_dbg(DEBUG_USBREQ, "request %02x (%04x)", |
185 | (unsigned)req, (unsigned)val); | |
186 | r = usb_control_msg(udev, usb_sndctrlpipe(udev, 0), 0x12, 0x41, | |
187 | 0xf /*?*/, 0, NULL, 0, 2000 /*?*/); | |
188 | /* no idea what this does */ | |
07dc1f9f | 189 | if (r < 0) { |
784d5858 | 190 | dev_err(&udev->dev, "error %d on request 0x12\n", -r); |
07dc1f9f HL |
191 | return r; |
192 | } | |
193 | ||
784d5858 TS |
194 | r = usb_control_msg(udev, usb_sndctrlpipe(udev, 0), req, 0x41, |
195 | val, 0, NULL, 0, 2000 /*?*/); | |
07dc1f9f | 196 | if (r < 0) |
784d5858 TS |
197 | dev_err(&udev->dev, "error %d on request 0x%02x\n", |
198 | -r, (unsigned)req); | |
07dc1f9f | 199 | |
784d5858 TS |
200 | r2 = usb_control_msg(udev, usb_sndctrlpipe(udev, 0), 0x19, 0x41, |
201 | 0, 0, cs->hw.usb->bchars, 6, 2000 /*?*/); | |
07dc1f9f | 202 | if (r2 < 0) |
784d5858 | 203 | dev_err(&udev->dev, "error %d on request 0x19\n", -r2); |
07dc1f9f HL |
204 | |
205 | return r < 0 ? r : (r2 < 0 ? r2 : 0); | |
206 | } | |
207 | ||
208 | /* WARNING: HIGHLY EXPERIMENTAL! */ | |
209 | // don't use this in an interrupt/BH | |
210 | static int gigaset_baud_rate(struct cardstate *cs, unsigned cflag) | |
211 | { | |
212 | u16 val; | |
213 | u32 rate; | |
214 | ||
215 | cflag &= CBAUD; | |
216 | ||
217 | switch (cflag) { | |
218 | //FIXME more values? | |
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 | ||
240 | /* WARNING: HIGHLY EXPERIMENTAL! */ | |
241 | // don't use this in an interrupt/BH | |
242 | static int gigaset_set_line_ctrl(struct cardstate *cs, unsigned cflag) | |
243 | { | |
244 | u16 val = 0; | |
245 | ||
246 | /* set the parity */ | |
247 | if (cflag & PARENB) | |
248 | val |= (cflag & PARODD) ? 0x10 : 0x20; | |
249 | ||
250 | /* set the number of data bits */ | |
251 | switch (cflag & CSIZE) { | |
252 | case CS5: | |
253 | val |= 5 << 8; break; | |
254 | case CS6: | |
255 | val |= 6 << 8; break; | |
256 | case CS7: | |
257 | val |= 7 << 8; break; | |
258 | case CS8: | |
259 | val |= 8 << 8; break; | |
260 | default: | |
784d5858 | 261 | dev_err(cs->dev, "CSIZE was not CS5-CS8, using default of 8\n"); |
07dc1f9f HL |
262 | val |= 8 << 8; |
263 | break; | |
264 | } | |
265 | ||
266 | /* set the number of stop bits */ | |
267 | if (cflag & CSTOPB) { | |
268 | if ((cflag & CSIZE) == CS5) | |
269 | val |= 1; /* 1.5 stop bits */ //FIXME is this okay? | |
270 | else | |
271 | val |= 2; /* 2 stop bits */ | |
272 | } | |
273 | ||
274 | return set_value(cs, 3, val); | |
275 | } | |
276 | ||
277 | #else | |
278 | static int gigaset_set_modem_ctrl(struct cardstate *cs, unsigned old_state, | |
784d5858 | 279 | unsigned new_state) |
07dc1f9f | 280 | { |
3f612132 | 281 | return -ENOTTY; |
07dc1f9f HL |
282 | } |
283 | ||
284 | static int gigaset_set_line_ctrl(struct cardstate *cs, unsigned cflag) | |
285 | { | |
3f612132 | 286 | return -ENOTTY; |
07dc1f9f HL |
287 | } |
288 | ||
289 | static int gigaset_baud_rate(struct cardstate *cs, unsigned cflag) | |
290 | { | |
3f612132 | 291 | return -ENOTTY; |
07dc1f9f HL |
292 | } |
293 | #endif | |
294 | ||
295 | ||
296 | /*================================================================================================================*/ | |
297 | static int gigaset_init_bchannel(struct bc_state *bcs) | |
298 | { | |
299 | /* nothing to do for M10x */ | |
300 | gigaset_bchannel_up(bcs); | |
301 | return 0; | |
302 | } | |
303 | ||
304 | static int gigaset_close_bchannel(struct bc_state *bcs) | |
305 | { | |
306 | /* nothing to do for M10x */ | |
307 | gigaset_bchannel_down(bcs); | |
308 | return 0; | |
309 | } | |
310 | ||
07dc1f9f HL |
311 | static int write_modem(struct cardstate *cs); |
312 | static int send_cb(struct cardstate *cs, struct cmdbuf_t *cb); | |
313 | ||
314 | ||
917f5085 TS |
315 | /* Write tasklet handler: Continue sending current skb, or send command, or |
316 | * start sending an skb from the send queue. | |
07dc1f9f HL |
317 | */ |
318 | static void gigaset_modem_fill(unsigned long data) | |
319 | { | |
320 | struct cardstate *cs = (struct cardstate *) data; | |
321 | struct bc_state *bcs = &cs->bcs[0]; /* only one channel */ | |
322 | struct cmdbuf_t *cb; | |
07dc1f9f HL |
323 | int again; |
324 | ||
784d5858 | 325 | gig_dbg(DEBUG_OUTPUT, "modem_fill"); |
07dc1f9f | 326 | |
9d4bee2b | 327 | if (cs->hw.usb->busy) { |
784d5858 | 328 | gig_dbg(DEBUG_OUTPUT, "modem_fill: busy"); |
07dc1f9f HL |
329 | return; |
330 | } | |
331 | ||
332 | do { | |
333 | again = 0; | |
334 | if (!bcs->tx_skb) { /* no skb is being sent */ | |
07dc1f9f | 335 | cb = cs->cmdbuf; |
07dc1f9f | 336 | if (cb) { /* commands to send? */ |
784d5858 | 337 | gig_dbg(DEBUG_OUTPUT, "modem_fill: cb"); |
07dc1f9f | 338 | if (send_cb(cs, cb) < 0) { |
784d5858 TS |
339 | gig_dbg(DEBUG_OUTPUT, |
340 | "modem_fill: send_cb failed"); | |
917f5085 TS |
341 | again = 1; /* no callback will be |
342 | called! */ | |
07dc1f9f HL |
343 | } |
344 | } else { /* skbs to send? */ | |
345 | bcs->tx_skb = skb_dequeue(&bcs->squeue); | |
346 | if (bcs->tx_skb) | |
784d5858 TS |
347 | gig_dbg(DEBUG_INTR, |
348 | "Dequeued skb (Adr: %lx)!", | |
349 | (unsigned long) bcs->tx_skb); | |
07dc1f9f HL |
350 | } |
351 | } | |
352 | ||
353 | if (bcs->tx_skb) { | |
784d5858 | 354 | gig_dbg(DEBUG_OUTPUT, "modem_fill: tx_skb"); |
07dc1f9f | 355 | if (write_modem(cs) < 0) { |
784d5858 TS |
356 | gig_dbg(DEBUG_OUTPUT, |
357 | "modem_fill: write_modem failed"); | |
07dc1f9f HL |
358 | // FIXME should we tell the LL? |
359 | again = 1; /* no callback will be called! */ | |
360 | } | |
361 | } | |
362 | } while (again); | |
363 | } | |
364 | ||
365 | /** | |
366 | * gigaset_read_int_callback | |
367 | * | |
784d5858 | 368 | * It is called if the data was received from the device. |
07dc1f9f | 369 | */ |
7d12e780 | 370 | static void gigaset_read_int_callback(struct urb *urb) |
07dc1f9f | 371 | { |
d48c7784 TS |
372 | struct inbuf_t *inbuf = urb->context; |
373 | struct cardstate *cs = inbuf->cs; | |
dbd98231 | 374 | int status = urb->status; |
07dc1f9f | 375 | int r; |
07dc1f9f HL |
376 | unsigned numbytes; |
377 | unsigned char *src; | |
69049cc8 | 378 | unsigned long flags; |
07dc1f9f | 379 | |
dbd98231 | 380 | if (!status) { |
07dc1f9f HL |
381 | numbytes = urb->actual_length; |
382 | ||
383 | if (numbytes) { | |
384 | src = inbuf->rcvbuf; | |
385 | if (unlikely(*src)) | |
784d5858 TS |
386 | dev_warn(cs->dev, |
387 | "%s: There was no leading 0, but 0x%02x!\n", | |
388 | __func__, (unsigned) *src); | |
07dc1f9f HL |
389 | ++src; /* skip leading 0x00 */ |
390 | --numbytes; | |
391 | if (gigaset_fill_inbuf(inbuf, src, numbytes)) { | |
784d5858 | 392 | gig_dbg(DEBUG_INTR, "%s-->BH", __func__); |
07dc1f9f HL |
393 | gigaset_schedule_event(inbuf->cs); |
394 | } | |
395 | } else | |
784d5858 | 396 | gig_dbg(DEBUG_INTR, "Received zero block length"); |
07dc1f9f HL |
397 | } else { |
398 | /* The urb might have been killed. */ | |
c652cbd8 | 399 | gig_dbg(DEBUG_ANY, "%s - nonzero status received: %d", |
dbd98231 | 400 | __func__, status); |
c652cbd8 TS |
401 | if (status == -ENOENT || status == -ESHUTDOWN) |
402 | /* killed or endpoint shutdown: don't resubmit */ | |
403 | return; | |
07dc1f9f | 404 | } |
784d5858 | 405 | |
c652cbd8 TS |
406 | /* resubmit URB */ |
407 | spin_lock_irqsave(&cs->lock, flags); | |
408 | if (!cs->connected) { | |
69049cc8 | 409 | spin_unlock_irqrestore(&cs->lock, flags); |
c8770dca | 410 | pr_err("%s: disconnected\n", __func__); |
c652cbd8 | 411 | return; |
07dc1f9f | 412 | } |
c652cbd8 TS |
413 | r = usb_submit_urb(urb, GFP_ATOMIC); |
414 | spin_unlock_irqrestore(&cs->lock, flags); | |
415 | if (r) | |
416 | dev_err(cs->dev, "error %d resubmitting URB\n", -r); | |
07dc1f9f HL |
417 | } |
418 | ||
419 | ||
917f5085 | 420 | /* This callback routine is called when data was transmitted to the device. */ |
7d12e780 | 421 | static void gigaset_write_bulk_callback(struct urb *urb) |
07dc1f9f | 422 | { |
d48c7784 | 423 | struct cardstate *cs = urb->context; |
dbd98231 | 424 | int status = urb->status; |
69049cc8 | 425 | unsigned long flags; |
07dc1f9f | 426 | |
c652cbd8 TS |
427 | switch (status) { |
428 | case 0: /* normal completion */ | |
429 | break; | |
430 | case -ENOENT: /* killed */ | |
431 | gig_dbg(DEBUG_ANY, "%s: killed", __func__); | |
9d4bee2b | 432 | cs->hw.usb->busy = 0; |
c652cbd8 TS |
433 | return; |
434 | default: | |
784d5858 | 435 | dev_err(cs->dev, "bulk transfer failed (status %d)\n", |
dbd98231 | 436 | -status); |
917f5085 | 437 | /* That's all we can do. Communication problems |
784d5858 | 438 | are handled by timeouts or network protocols. */ |
c652cbd8 | 439 | } |
07dc1f9f | 440 | |
69049cc8 TS |
441 | spin_lock_irqsave(&cs->lock, flags); |
442 | if (!cs->connected) { | |
c8770dca | 443 | pr_err("%s: disconnected\n", __func__); |
69049cc8 | 444 | } else { |
9d4bee2b | 445 | cs->hw.usb->busy = 0; |
69049cc8 TS |
446 | tasklet_schedule(&cs->write_tasklet); |
447 | } | |
448 | spin_unlock_irqrestore(&cs->lock, flags); | |
07dc1f9f HL |
449 | } |
450 | ||
451 | static int send_cb(struct cardstate *cs, struct cmdbuf_t *cb) | |
452 | { | |
453 | struct cmdbuf_t *tcb; | |
454 | unsigned long flags; | |
455 | int count; | |
456 | int status = -ENOENT; // FIXME | |
457 | struct usb_cardstate *ucs = cs->hw.usb; | |
458 | ||
459 | do { | |
460 | if (!cb->len) { | |
461 | tcb = cb; | |
462 | ||
463 | spin_lock_irqsave(&cs->cmdlock, flags); | |
464 | cs->cmdbytes -= cs->curlen; | |
784d5858 TS |
465 | gig_dbg(DEBUG_OUTPUT, "send_cb: sent %u bytes, %u left", |
466 | cs->curlen, cs->cmdbytes); | |
07dc1f9f HL |
467 | cs->cmdbuf = cb = cb->next; |
468 | if (cb) { | |
469 | cb->prev = NULL; | |
470 | cs->curlen = cb->len; | |
471 | } else { | |
472 | cs->lastcmdbuf = NULL; | |
473 | cs->curlen = 0; | |
474 | } | |
475 | spin_unlock_irqrestore(&cs->cmdlock, flags); | |
476 | ||
477 | if (tcb->wake_tasklet) | |
478 | tasklet_schedule(tcb->wake_tasklet); | |
479 | kfree(tcb); | |
480 | } | |
481 | if (cb) { | |
482 | count = min(cb->len, ucs->bulk_out_size); | |
69049cc8 TS |
483 | gig_dbg(DEBUG_OUTPUT, "send_cb: send %d bytes", count); |
484 | ||
07dc1f9f | 485 | usb_fill_bulk_urb(ucs->bulk_out_urb, ucs->udev, |
784d5858 TS |
486 | usb_sndbulkpipe(ucs->udev, |
487 | ucs->bulk_out_endpointAddr & 0x0f), | |
488 | cb->buf + cb->offset, count, | |
489 | gigaset_write_bulk_callback, cs); | |
07dc1f9f HL |
490 | |
491 | cb->offset += count; | |
492 | cb->len -= count; | |
9d4bee2b | 493 | ucs->busy = 1; |
07dc1f9f | 494 | |
69049cc8 | 495 | spin_lock_irqsave(&cs->lock, flags); |
54e6ecb2 | 496 | status = cs->connected ? usb_submit_urb(ucs->bulk_out_urb, GFP_ATOMIC) : -ENODEV; |
69049cc8 TS |
497 | spin_unlock_irqrestore(&cs->lock, flags); |
498 | ||
07dc1f9f | 499 | if (status) { |
9d4bee2b | 500 | ucs->busy = 0; |
5002779d TS |
501 | dev_err(cs->dev, |
502 | "could not submit urb (error %d)\n", | |
503 | -status); | |
917f5085 TS |
504 | cb->len = 0; /* skip urb => remove cb+wakeup |
505 | in next loop cycle */ | |
07dc1f9f HL |
506 | } |
507 | } | |
917f5085 | 508 | } while (cb && status); /* next command on error */ |
07dc1f9f HL |
509 | |
510 | return status; | |
511 | } | |
512 | ||
917f5085 | 513 | /* Send command to device. */ |
07dc1f9f | 514 | static int gigaset_write_cmd(struct cardstate *cs, const unsigned char *buf, |
784d5858 | 515 | int len, struct tasklet_struct *wake_tasklet) |
07dc1f9f HL |
516 | { |
517 | struct cmdbuf_t *cb; | |
518 | unsigned long flags; | |
519 | ||
9d4bee2b | 520 | gigaset_dbg_buffer(cs->mstate != MS_LOCKED ? |
784d5858 | 521 | DEBUG_TRANSCMD : DEBUG_LOCKCMD, |
01371500 | 522 | "CMD Transmit", len, buf); |
07dc1f9f | 523 | |
07dc1f9f HL |
524 | if (len <= 0) |
525 | return 0; | |
526 | ||
527 | if (!(cb = kmalloc(sizeof(struct cmdbuf_t) + len, GFP_ATOMIC))) { | |
784d5858 | 528 | dev_err(cs->dev, "%s: out of memory\n", __func__); |
07dc1f9f HL |
529 | return -ENOMEM; |
530 | } | |
531 | ||
532 | memcpy(cb->buf, buf, len); | |
533 | cb->len = len; | |
534 | cb->offset = 0; | |
535 | cb->next = NULL; | |
536 | cb->wake_tasklet = wake_tasklet; | |
537 | ||
538 | spin_lock_irqsave(&cs->cmdlock, flags); | |
539 | cb->prev = cs->lastcmdbuf; | |
540 | if (cs->lastcmdbuf) | |
541 | cs->lastcmdbuf->next = cb; | |
542 | else { | |
543 | cs->cmdbuf = cb; | |
544 | cs->curlen = len; | |
545 | } | |
546 | cs->cmdbytes += len; | |
547 | cs->lastcmdbuf = cb; | |
548 | spin_unlock_irqrestore(&cs->cmdlock, flags); | |
549 | ||
69049cc8 TS |
550 | spin_lock_irqsave(&cs->lock, flags); |
551 | if (cs->connected) | |
552 | tasklet_schedule(&cs->write_tasklet); | |
553 | spin_unlock_irqrestore(&cs->lock, flags); | |
07dc1f9f HL |
554 | return len; |
555 | } | |
556 | ||
557 | static int gigaset_write_room(struct cardstate *cs) | |
558 | { | |
07dc1f9f HL |
559 | unsigned bytes; |
560 | ||
07dc1f9f | 561 | bytes = cs->cmdbytes; |
07dc1f9f HL |
562 | return bytes < IF_WRITEBUF ? IF_WRITEBUF - bytes : 0; |
563 | } | |
564 | ||
565 | static int gigaset_chars_in_buffer(struct cardstate *cs) | |
566 | { | |
567 | return cs->cmdbytes; | |
568 | } | |
569 | ||
570 | static int gigaset_brkchars(struct cardstate *cs, const unsigned char buf[6]) | |
571 | { | |
572 | #ifdef CONFIG_GIGASET_UNDOCREQ | |
784d5858 TS |
573 | struct usb_device *udev = cs->hw.usb->udev; |
574 | ||
01371500 | 575 | gigaset_dbg_buffer(DEBUG_USBREQ, "brkchars", 6, buf); |
07dc1f9f | 576 | memcpy(cs->hw.usb->bchars, buf, 6); |
784d5858 TS |
577 | return usb_control_msg(udev, usb_sndctrlpipe(udev, 0), 0x19, 0x41, |
578 | 0, 0, &buf, 6, 2000); | |
07dc1f9f | 579 | #else |
3f612132 | 580 | return -ENOTTY; |
07dc1f9f HL |
581 | #endif |
582 | } | |
583 | ||
584 | static int gigaset_freebcshw(struct bc_state *bcs) | |
585 | { | |
21d36495 | 586 | /* unused */ |
07dc1f9f HL |
587 | return 1; |
588 | } | |
589 | ||
590 | /* Initialize the b-channel structure */ | |
591 | static int gigaset_initbcshw(struct bc_state *bcs) | |
592 | { | |
21d36495 TS |
593 | /* unused */ |
594 | bcs->hw.usb = NULL; | |
07dc1f9f HL |
595 | return 1; |
596 | } | |
597 | ||
598 | static void gigaset_reinitbcshw(struct bc_state *bcs) | |
599 | { | |
21d36495 | 600 | /* nothing to do for M10x */ |
07dc1f9f HL |
601 | } |
602 | ||
603 | static void gigaset_freecshw(struct cardstate *cs) | |
604 | { | |
07dc1f9f HL |
605 | tasklet_kill(&cs->write_tasklet); |
606 | kfree(cs->hw.usb); | |
607 | } | |
608 | ||
609 | static int gigaset_initcshw(struct cardstate *cs) | |
610 | { | |
611 | struct usb_cardstate *ucs; | |
612 | ||
613 | cs->hw.usb = ucs = | |
614 | kmalloc(sizeof(struct usb_cardstate), GFP_KERNEL); | |
c8770dca TS |
615 | if (!ucs) { |
616 | pr_err("out of memory\n"); | |
07dc1f9f | 617 | return 0; |
c8770dca | 618 | } |
07dc1f9f HL |
619 | |
620 | ucs->bchars[0] = 0; | |
621 | ucs->bchars[1] = 0; | |
622 | ucs->bchars[2] = 0; | |
623 | ucs->bchars[3] = 0; | |
624 | ucs->bchars[4] = 0x11; | |
625 | ucs->bchars[5] = 0x13; | |
626 | ucs->bulk_out_buffer = NULL; | |
627 | ucs->bulk_out_urb = NULL; | |
628 | //ucs->urb_cmd_out = NULL; | |
629 | ucs->read_urb = NULL; | |
630 | tasklet_init(&cs->write_tasklet, | |
784d5858 | 631 | &gigaset_modem_fill, (unsigned long) cs); |
07dc1f9f HL |
632 | |
633 | return 1; | |
634 | } | |
635 | ||
917f5085 | 636 | /* Send data from current skb to the device. */ |
07dc1f9f HL |
637 | static int write_modem(struct cardstate *cs) |
638 | { | |
d48c7784 | 639 | int ret = 0; |
07dc1f9f HL |
640 | int count; |
641 | struct bc_state *bcs = &cs->bcs[0]; /* only one channel */ | |
642 | struct usb_cardstate *ucs = cs->hw.usb; | |
69049cc8 | 643 | unsigned long flags; |
07dc1f9f | 644 | |
784d5858 | 645 | gig_dbg(DEBUG_WRITE, "len: %d...", bcs->tx_skb->len); |
07dc1f9f | 646 | |
07dc1f9f HL |
647 | if (!bcs->tx_skb->len) { |
648 | dev_kfree_skb_any(bcs->tx_skb); | |
649 | bcs->tx_skb = NULL; | |
650 | return -EINVAL; | |
651 | } | |
652 | ||
653 | /* Copy data to bulk out buffer and // FIXME copying not necessary | |
654 | * transmit data | |
655 | */ | |
656 | count = min(bcs->tx_skb->len, (unsigned) ucs->bulk_out_size); | |
d626f62b | 657 | skb_copy_from_linear_data(bcs->tx_skb, ucs->bulk_out_buffer, count); |
07dc1f9f | 658 | skb_pull(bcs->tx_skb, count); |
9d4bee2b | 659 | ucs->busy = 1; |
784d5858 | 660 | gig_dbg(DEBUG_OUTPUT, "write_modem: send %d bytes", count); |
07dc1f9f | 661 | |
69049cc8 TS |
662 | spin_lock_irqsave(&cs->lock, flags); |
663 | if (cs->connected) { | |
664 | usb_fill_bulk_urb(ucs->bulk_out_urb, ucs->udev, | |
665 | usb_sndbulkpipe(ucs->udev, | |
666 | ucs->bulk_out_endpointAddr & 0x0f), | |
667 | ucs->bulk_out_buffer, count, | |
668 | gigaset_write_bulk_callback, cs); | |
54e6ecb2 | 669 | ret = usb_submit_urb(ucs->bulk_out_urb, GFP_ATOMIC); |
69049cc8 TS |
670 | } else { |
671 | ret = -ENODEV; | |
672 | } | |
673 | spin_unlock_irqrestore(&cs->lock, flags); | |
674 | ||
07dc1f9f | 675 | if (ret) { |
5002779d | 676 | dev_err(cs->dev, "could not submit urb (error %d)\n", -ret); |
9d4bee2b | 677 | ucs->busy = 0; |
07dc1f9f | 678 | } |
69049cc8 | 679 | |
07dc1f9f HL |
680 | if (!bcs->tx_skb->len) { |
681 | /* skb sent completely */ | |
682 | gigaset_skb_sent(bcs, bcs->tx_skb); //FIXME also, when ret<0? | |
683 | ||
784d5858 TS |
684 | gig_dbg(DEBUG_INTR, "kfree skb (Adr: %lx)!", |
685 | (unsigned long) bcs->tx_skb); | |
07dc1f9f HL |
686 | dev_kfree_skb_any(bcs->tx_skb); |
687 | bcs->tx_skb = NULL; | |
688 | } | |
689 | ||
690 | return ret; | |
07dc1f9f HL |
691 | } |
692 | ||
693 | static int gigaset_probe(struct usb_interface *interface, | |
784d5858 | 694 | const struct usb_device_id *id) |
07dc1f9f HL |
695 | { |
696 | int retval; | |
697 | struct usb_device *udev = interface_to_usbdev(interface); | |
c652cbd8 | 698 | struct usb_host_interface *hostif = interface->cur_altsetting; |
07dc1f9f HL |
699 | struct cardstate *cs = NULL; |
700 | struct usb_cardstate *ucs = NULL; | |
07dc1f9f | 701 | struct usb_endpoint_descriptor *endpoint; |
07dc1f9f | 702 | int buffer_size; |
07dc1f9f | 703 | |
c652cbd8 | 704 | gig_dbg(DEBUG_ANY, "%s: Check if device matches ...", __func__); |
07dc1f9f HL |
705 | |
706 | /* See if the device offered us matches what we can accept */ | |
bfe2e934 | 707 | if ((le16_to_cpu(udev->descriptor.idVendor) != USB_M105_VENDOR_ID) || |
c652cbd8 TS |
708 | (le16_to_cpu(udev->descriptor.idProduct) != USB_M105_PRODUCT_ID)) { |
709 | gig_dbg(DEBUG_ANY, "device ID (0x%x, 0x%x) not for me - skip", | |
710 | le16_to_cpu(udev->descriptor.idVendor), | |
711 | le16_to_cpu(udev->descriptor.idProduct)); | |
07dc1f9f | 712 | return -ENODEV; |
c652cbd8 TS |
713 | } |
714 | if (hostif->desc.bInterfaceNumber != 0) { | |
715 | gig_dbg(DEBUG_ANY, "interface %d not for me - skip", | |
716 | hostif->desc.bInterfaceNumber); | |
717 | return -ENODEV; | |
718 | } | |
719 | if (hostif->desc.bAlternateSetting != 0) { | |
720 | dev_notice(&udev->dev, "unsupported altsetting %d - skip", | |
721 | hostif->desc.bAlternateSetting); | |
07dc1f9f HL |
722 | return -ENODEV; |
723 | } | |
07dc1f9f | 724 | if (hostif->desc.bInterfaceClass != 255) { |
c652cbd8 TS |
725 | dev_notice(&udev->dev, "unsupported interface class %d - skip", |
726 | hostif->desc.bInterfaceClass); | |
07dc1f9f HL |
727 | return -ENODEV; |
728 | } | |
729 | ||
784d5858 | 730 | dev_info(&udev->dev, "%s: Device matched ... !\n", __func__); |
07dc1f9f | 731 | |
e468c048 TS |
732 | /* allocate memory for our device state and intialize it */ |
733 | cs = gigaset_initcs(driver, 1, 1, 0, cidmode, GIGASET_MODULENAME); | |
734 | if (!cs) | |
07dc1f9f | 735 | return -ENODEV; |
07dc1f9f HL |
736 | ucs = cs->hw.usb; |
737 | ||
784d5858 TS |
738 | /* save off device structure ptrs for later use */ |
739 | usb_get_dev(udev); | |
740 | ucs->udev = udev; | |
741 | ucs->interface = interface; | |
b1d47464 TS |
742 | cs->dev = &interface->dev; |
743 | ||
744 | /* save address of controller structure */ | |
745 | usb_set_intfdata(interface, cs); // dev_set_drvdata(&interface->dev, cs); | |
784d5858 | 746 | |
07dc1f9f HL |
747 | endpoint = &hostif->endpoint[0].desc; |
748 | ||
749 | buffer_size = le16_to_cpu(endpoint->wMaxPacketSize); | |
750 | ucs->bulk_out_size = buffer_size; | |
751 | ucs->bulk_out_endpointAddr = endpoint->bEndpointAddress; | |
752 | ucs->bulk_out_buffer = kmalloc(buffer_size, GFP_KERNEL); | |
753 | if (!ucs->bulk_out_buffer) { | |
784d5858 | 754 | dev_err(cs->dev, "Couldn't allocate bulk_out_buffer\n"); |
07dc1f9f HL |
755 | retval = -ENOMEM; |
756 | goto error; | |
757 | } | |
758 | ||
e94b1766 | 759 | ucs->bulk_out_urb = usb_alloc_urb(0, GFP_KERNEL); |
07dc1f9f | 760 | if (!ucs->bulk_out_urb) { |
784d5858 | 761 | dev_err(cs->dev, "Couldn't allocate bulk_out_urb\n"); |
07dc1f9f HL |
762 | retval = -ENOMEM; |
763 | goto error; | |
764 | } | |
765 | ||
766 | endpoint = &hostif->endpoint[1].desc; | |
767 | ||
9d4bee2b | 768 | ucs->busy = 0; |
07dc1f9f | 769 | |
e94b1766 | 770 | ucs->read_urb = usb_alloc_urb(0, GFP_KERNEL); |
07dc1f9f | 771 | if (!ucs->read_urb) { |
784d5858 | 772 | dev_err(cs->dev, "No free urbs available\n"); |
07dc1f9f HL |
773 | retval = -ENOMEM; |
774 | goto error; | |
775 | } | |
776 | buffer_size = le16_to_cpu(endpoint->wMaxPacketSize); | |
777 | ucs->rcvbuf_size = buffer_size; | |
778 | ucs->int_in_endpointAddr = endpoint->bEndpointAddress; | |
779 | cs->inbuf[0].rcvbuf = kmalloc(buffer_size, GFP_KERNEL); | |
780 | if (!cs->inbuf[0].rcvbuf) { | |
784d5858 | 781 | dev_err(cs->dev, "Couldn't allocate rcvbuf\n"); |
07dc1f9f HL |
782 | retval = -ENOMEM; |
783 | goto error; | |
784 | } | |
785 | /* Fill the interrupt urb and send it to the core */ | |
786 | usb_fill_int_urb(ucs->read_urb, udev, | |
784d5858 TS |
787 | usb_rcvintpipe(udev, |
788 | endpoint->bEndpointAddress & 0x0f), | |
789 | cs->inbuf[0].rcvbuf, buffer_size, | |
790 | gigaset_read_int_callback, | |
791 | cs->inbuf + 0, endpoint->bInterval); | |
07dc1f9f | 792 | |
e94b1766 | 793 | retval = usb_submit_urb(ucs->read_urb, GFP_KERNEL); |
07dc1f9f | 794 | if (retval) { |
784d5858 | 795 | dev_err(cs->dev, "Could not submit URB (error %d)\n", -retval); |
07dc1f9f HL |
796 | goto error; |
797 | } | |
798 | ||
799 | /* tell common part that the device is ready */ | |
800 | if (startmode == SM_LOCKED) | |
9d4bee2b | 801 | cs->mstate = MS_LOCKED; |
b1d47464 | 802 | |
07dc1f9f HL |
803 | if (!gigaset_start(cs)) { |
804 | tasklet_kill(&cs->write_tasklet); | |
805 | retval = -ENODEV; //FIXME | |
806 | goto error; | |
807 | } | |
07dc1f9f HL |
808 | return 0; |
809 | ||
810 | error: | |
ead54fcd | 811 | usb_kill_urb(ucs->read_urb); |
07dc1f9f | 812 | kfree(ucs->bulk_out_buffer); |
ead54fcd | 813 | usb_free_urb(ucs->bulk_out_urb); |
07dc1f9f | 814 | kfree(cs->inbuf[0].rcvbuf); |
ead54fcd | 815 | usb_free_urb(ucs->read_urb); |
b1d47464 | 816 | usb_set_intfdata(interface, NULL); |
07dc1f9f HL |
817 | ucs->read_urb = ucs->bulk_out_urb = NULL; |
818 | cs->inbuf[0].rcvbuf = ucs->bulk_out_buffer = NULL; | |
784d5858 TS |
819 | usb_put_dev(ucs->udev); |
820 | ucs->udev = NULL; | |
821 | ucs->interface = NULL; | |
e468c048 | 822 | gigaset_freecs(cs); |
07dc1f9f HL |
823 | return retval; |
824 | } | |
825 | ||
07dc1f9f HL |
826 | static void gigaset_disconnect(struct usb_interface *interface) |
827 | { | |
828 | struct cardstate *cs; | |
829 | struct usb_cardstate *ucs; | |
830 | ||
831 | cs = usb_get_intfdata(interface); | |
07dc1f9f | 832 | ucs = cs->hw.usb; |
c652cbd8 TS |
833 | |
834 | dev_info(cs->dev, "disconnecting Gigaset USB adapter\n"); | |
835 | ||
07dc1f9f | 836 | usb_kill_urb(ucs->read_urb); |
07dc1f9f HL |
837 | |
838 | gigaset_stop(cs); | |
839 | ||
b1d47464 | 840 | usb_set_intfdata(interface, NULL); |
07dc1f9f HL |
841 | tasklet_kill(&cs->write_tasklet); |
842 | ||
c652cbd8 | 843 | usb_kill_urb(ucs->bulk_out_urb); |
07dc1f9f HL |
844 | |
845 | kfree(ucs->bulk_out_buffer); | |
ead54fcd | 846 | usb_free_urb(ucs->bulk_out_urb); |
07dc1f9f | 847 | kfree(cs->inbuf[0].rcvbuf); |
ead54fcd | 848 | usb_free_urb(ucs->read_urb); |
917f5085 | 849 | ucs->read_urb = ucs->bulk_out_urb = NULL; |
07dc1f9f HL |
850 | cs->inbuf[0].rcvbuf = ucs->bulk_out_buffer = NULL; |
851 | ||
b1d47464 TS |
852 | usb_put_dev(ucs->udev); |
853 | ucs->interface = NULL; | |
854 | ucs->udev = NULL; | |
855 | cs->dev = NULL; | |
e468c048 | 856 | gigaset_freecs(cs); |
07dc1f9f HL |
857 | } |
858 | ||
1ff0a529 TS |
859 | /* gigaset_suspend |
860 | * This function is called before the USB connection is suspended or reset. | |
861 | */ | |
862 | static int gigaset_suspend(struct usb_interface *intf, pm_message_t message) | |
863 | { | |
864 | struct cardstate *cs = usb_get_intfdata(intf); | |
865 | ||
866 | /* stop activity */ | |
867 | cs->connected = 0; /* prevent rescheduling */ | |
868 | usb_kill_urb(cs->hw.usb->read_urb); | |
869 | tasklet_kill(&cs->write_tasklet); | |
870 | usb_kill_urb(cs->hw.usb->bulk_out_urb); | |
871 | ||
872 | gig_dbg(DEBUG_SUSPEND, "suspend complete"); | |
873 | return 0; | |
874 | } | |
875 | ||
876 | /* gigaset_resume | |
877 | * This function is called after the USB connection has been resumed or reset. | |
878 | */ | |
879 | static int gigaset_resume(struct usb_interface *intf) | |
880 | { | |
881 | struct cardstate *cs = usb_get_intfdata(intf); | |
882 | int rc; | |
883 | ||
884 | /* resubmit interrupt URB */ | |
885 | cs->connected = 1; | |
886 | rc = usb_submit_urb(cs->hw.usb->read_urb, GFP_KERNEL); | |
887 | if (rc) { | |
888 | dev_err(cs->dev, "Could not submit read URB (error %d)\n", -rc); | |
889 | return rc; | |
890 | } | |
891 | ||
892 | gig_dbg(DEBUG_SUSPEND, "resume complete"); | |
893 | return 0; | |
894 | } | |
895 | ||
896 | /* gigaset_pre_reset | |
897 | * This function is called before the USB connection is reset. | |
898 | */ | |
899 | static int gigaset_pre_reset(struct usb_interface *intf) | |
900 | { | |
901 | /* same as suspend */ | |
902 | return gigaset_suspend(intf, PMSG_ON); | |
903 | } | |
904 | ||
35dc8457 | 905 | static const struct gigaset_ops ops = { |
07dc1f9f HL |
906 | gigaset_write_cmd, |
907 | gigaset_write_room, | |
908 | gigaset_chars_in_buffer, | |
909 | gigaset_brkchars, | |
910 | gigaset_init_bchannel, | |
911 | gigaset_close_bchannel, | |
912 | gigaset_initbcshw, | |
913 | gigaset_freebcshw, | |
914 | gigaset_reinitbcshw, | |
915 | gigaset_initcshw, | |
916 | gigaset_freecshw, | |
917 | gigaset_set_modem_ctrl, | |
918 | gigaset_baud_rate, | |
919 | gigaset_set_line_ctrl, | |
920 | gigaset_m10x_send_skb, | |
921 | gigaset_m10x_input, | |
922 | }; | |
923 | ||
924 | /** | |
925 | * usb_gigaset_init | |
926 | * This function is called while kernel-module is loaded | |
927 | */ | |
928 | static int __init usb_gigaset_init(void) | |
929 | { | |
930 | int result; | |
931 | ||
932 | /* allocate memory for our driver state and intialize it */ | |
933 | if ((driver = gigaset_initdriver(GIGASET_MINOR, GIGASET_MINORS, | |
784d5858 | 934 | GIGASET_MODULENAME, GIGASET_DEVNAME, |
f4eaa370 | 935 | &ops, THIS_MODULE)) == NULL) |
07dc1f9f HL |
936 | goto error; |
937 | ||
07dc1f9f HL |
938 | /* register this driver with the USB subsystem */ |
939 | result = usb_register(&gigaset_usb_driver); | |
940 | if (result < 0) { | |
c8770dca | 941 | pr_err("error %d registering USB driver\n", -result); |
07dc1f9f HL |
942 | goto error; |
943 | } | |
944 | ||
c8770dca | 945 | pr_info(DRIVER_DESC "\n"); |
07dc1f9f HL |
946 | return 0; |
947 | ||
e468c048 | 948 | error: |
07dc1f9f HL |
949 | if (driver) |
950 | gigaset_freedriver(driver); | |
951 | driver = NULL; | |
952 | return -1; | |
953 | } | |
954 | ||
955 | ||
956 | /** | |
957 | * usb_gigaset_exit | |
958 | * This function is called while unloading the kernel-module | |
959 | */ | |
960 | static void __exit usb_gigaset_exit(void) | |
961 | { | |
e468c048 TS |
962 | int i; |
963 | ||
07dc1f9f | 964 | gigaset_blockdriver(driver); /* => probe will fail |
784d5858 TS |
965 | * => no gigaset_start any more |
966 | */ | |
07dc1f9f | 967 | |
e468c048 TS |
968 | /* stop all connected devices */ |
969 | for (i = 0; i < driver->minors; i++) | |
970 | gigaset_shutdown(driver->cs + i); | |
971 | ||
07dc1f9f HL |
972 | /* from now on, no isdn callback should be possible */ |
973 | ||
974 | /* deregister this driver with the USB subsystem */ | |
975 | usb_deregister(&gigaset_usb_driver); | |
976 | /* this will call the disconnect-callback */ | |
977 | /* from now on, no disconnect/probe callback should be running */ | |
978 | ||
07dc1f9f HL |
979 | gigaset_freedriver(driver); |
980 | driver = NULL; | |
981 | } | |
982 | ||
983 | ||
984 | module_init(usb_gigaset_init); | |
985 | module_exit(usb_gigaset_exit); | |
986 | ||
987 | MODULE_AUTHOR(DRIVER_AUTHOR); | |
988 | MODULE_DESCRIPTION(DRIVER_DESC); | |
989 | ||
990 | MODULE_LICENSE("GPL"); |