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" | |
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; | |
145 | __u8 int_in_endpointAddr; | |
917f5085 | 146 | |
784d5858 | 147 | char bchars[6]; /* for request 0x19 */ |
07dc1f9f HL |
148 | }; |
149 | ||
07dc1f9f HL |
150 | static inline unsigned tiocm_to_gigaset(unsigned state) |
151 | { | |
152 | return ((state & TIOCM_DTR) ? 1 : 0) | ((state & TIOCM_RTS) ? 2 : 0); | |
153 | } | |
154 | ||
07dc1f9f | 155 | static int gigaset_set_modem_ctrl(struct cardstate *cs, unsigned old_state, |
784d5858 | 156 | unsigned new_state) |
07dc1f9f | 157 | { |
784d5858 | 158 | struct usb_device *udev = cs->hw.usb->udev; |
07dc1f9f HL |
159 | unsigned mask, val; |
160 | int r; | |
161 | ||
162 | mask = tiocm_to_gigaset(old_state ^ new_state); | |
163 | val = tiocm_to_gigaset(new_state); | |
164 | ||
784d5858 | 165 | gig_dbg(DEBUG_USBREQ, "set flags 0x%02x with mask 0x%02x", val, mask); |
784d5858 TS |
166 | r = usb_control_msg(udev, usb_sndctrlpipe(udev, 0), 7, 0x41, |
167 | (val & 0xff) | ((mask & 0xff) << 8), 0, | |
168 | NULL, 0, 2000 /* timeout? */); | |
07dc1f9f HL |
169 | if (r < 0) |
170 | return r; | |
07dc1f9f HL |
171 | return 0; |
172 | } | |
173 | ||
b88bd956 TS |
174 | /* |
175 | * Set M105 configuration value | |
176 | * using undocumented device commands reverse engineered from USB traces | |
177 | * of the Siemens Windows driver | |
178 | */ | |
07dc1f9f HL |
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 /*?*/); | |
475be4d8 | 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 | ||
b88bd956 TS |
208 | /* |
209 | * set the baud rate on the internal serial adapter | |
210 | * using the undocumented parameter setting command | |
211 | */ | |
07dc1f9f HL |
212 | static int gigaset_baud_rate(struct cardstate *cs, unsigned cflag) |
213 | { | |
214 | u16 val; | |
215 | u32 rate; | |
216 | ||
217 | cflag &= CBAUD; | |
218 | ||
219 | switch (cflag) { | |
07dc1f9f HL |
220 | case B300: rate = 300; break; |
221 | case B600: rate = 600; break; | |
222 | case B1200: rate = 1200; break; | |
223 | case B2400: rate = 2400; break; | |
224 | case B4800: rate = 4800; break; | |
225 | case B9600: rate = 9600; break; | |
226 | case B19200: rate = 19200; break; | |
227 | case B38400: rate = 38400; break; | |
228 | case B57600: rate = 57600; break; | |
229 | case B115200: rate = 115200; break; | |
230 | default: | |
231 | rate = 9600; | |
784d5858 TS |
232 | dev_err(cs->dev, "unsupported baudrate request 0x%x," |
233 | " using default of B9600\n", cflag); | |
07dc1f9f HL |
234 | } |
235 | ||
236 | val = 0x383fff / rate + 1; | |
237 | ||
238 | return set_value(cs, 1, val); | |
239 | } | |
240 | ||
b88bd956 TS |
241 | /* |
242 | * set the line format on the internal serial adapter | |
243 | * using the undocumented parameter setting command | |
244 | */ | |
07dc1f9f HL |
245 | static int gigaset_set_line_ctrl(struct cardstate *cs, unsigned cflag) |
246 | { | |
247 | u16 val = 0; | |
248 | ||
249 | /* set the parity */ | |
250 | if (cflag & PARENB) | |
251 | val |= (cflag & PARODD) ? 0x10 : 0x20; | |
252 | ||
253 | /* set the number of data bits */ | |
254 | switch (cflag & CSIZE) { | |
255 | case CS5: | |
256 | val |= 5 << 8; break; | |
257 | case CS6: | |
258 | val |= 6 << 8; break; | |
259 | case CS7: | |
260 | val |= 7 << 8; break; | |
261 | case CS8: | |
262 | val |= 8 << 8; break; | |
263 | default: | |
784d5858 | 264 | dev_err(cs->dev, "CSIZE was not CS5-CS8, using default of 8\n"); |
07dc1f9f HL |
265 | val |= 8 << 8; |
266 | break; | |
267 | } | |
268 | ||
269 | /* set the number of stop bits */ | |
270 | if (cflag & CSTOPB) { | |
271 | if ((cflag & CSIZE) == CS5) | |
2032e2c2 | 272 | val |= 1; /* 1.5 stop bits */ |
07dc1f9f HL |
273 | else |
274 | val |= 2; /* 2 stop bits */ | |
275 | } | |
276 | ||
277 | return set_value(cs, 3, val); | |
278 | } | |
279 | ||
07dc1f9f | 280 | |
2032e2c2 | 281 | /*============================================================================*/ |
07dc1f9f HL |
282 | static int gigaset_init_bchannel(struct bc_state *bcs) |
283 | { | |
284 | /* nothing to do for M10x */ | |
285 | gigaset_bchannel_up(bcs); | |
286 | return 0; | |
287 | } | |
288 | ||
289 | static int gigaset_close_bchannel(struct bc_state *bcs) | |
290 | { | |
291 | /* nothing to do for M10x */ | |
292 | gigaset_bchannel_down(bcs); | |
293 | return 0; | |
294 | } | |
295 | ||
07dc1f9f HL |
296 | static int write_modem(struct cardstate *cs); |
297 | static int send_cb(struct cardstate *cs, struct cmdbuf_t *cb); | |
298 | ||
299 | ||
917f5085 TS |
300 | /* Write tasklet handler: Continue sending current skb, or send command, or |
301 | * start sending an skb from the send queue. | |
07dc1f9f HL |
302 | */ |
303 | static void gigaset_modem_fill(unsigned long data) | |
304 | { | |
305 | struct cardstate *cs = (struct cardstate *) data; | |
306 | struct bc_state *bcs = &cs->bcs[0]; /* only one channel */ | |
307 | struct cmdbuf_t *cb; | |
07dc1f9f HL |
308 | int again; |
309 | ||
784d5858 | 310 | gig_dbg(DEBUG_OUTPUT, "modem_fill"); |
07dc1f9f | 311 | |
9d4bee2b | 312 | if (cs->hw.usb->busy) { |
784d5858 | 313 | gig_dbg(DEBUG_OUTPUT, "modem_fill: busy"); |
07dc1f9f HL |
314 | return; |
315 | } | |
316 | ||
317 | do { | |
318 | again = 0; | |
319 | if (!bcs->tx_skb) { /* no skb is being sent */ | |
07dc1f9f | 320 | cb = cs->cmdbuf; |
07dc1f9f | 321 | if (cb) { /* commands to send? */ |
784d5858 | 322 | gig_dbg(DEBUG_OUTPUT, "modem_fill: cb"); |
07dc1f9f | 323 | if (send_cb(cs, cb) < 0) { |
784d5858 TS |
324 | gig_dbg(DEBUG_OUTPUT, |
325 | "modem_fill: send_cb failed"); | |
917f5085 TS |
326 | again = 1; /* no callback will be |
327 | called! */ | |
07dc1f9f HL |
328 | } |
329 | } else { /* skbs to send? */ | |
330 | bcs->tx_skb = skb_dequeue(&bcs->squeue); | |
331 | if (bcs->tx_skb) | |
784d5858 TS |
332 | gig_dbg(DEBUG_INTR, |
333 | "Dequeued skb (Adr: %lx)!", | |
334 | (unsigned long) bcs->tx_skb); | |
07dc1f9f HL |
335 | } |
336 | } | |
337 | ||
338 | if (bcs->tx_skb) { | |
784d5858 | 339 | gig_dbg(DEBUG_OUTPUT, "modem_fill: tx_skb"); |
07dc1f9f | 340 | if (write_modem(cs) < 0) { |
784d5858 TS |
341 | gig_dbg(DEBUG_OUTPUT, |
342 | "modem_fill: write_modem failed"); | |
07dc1f9f HL |
343 | again = 1; /* no callback will be called! */ |
344 | } | |
345 | } | |
346 | } while (again); | |
347 | } | |
348 | ||
b88bd956 TS |
349 | /* |
350 | * Interrupt Input URB completion routine | |
07dc1f9f | 351 | */ |
7d12e780 | 352 | static void gigaset_read_int_callback(struct urb *urb) |
07dc1f9f | 353 | { |
2032e2c2 TS |
354 | struct cardstate *cs = urb->context; |
355 | struct inbuf_t *inbuf = cs->inbuf; | |
dbd98231 | 356 | int status = urb->status; |
07dc1f9f | 357 | int r; |
07dc1f9f HL |
358 | unsigned numbytes; |
359 | unsigned char *src; | |
69049cc8 | 360 | unsigned long flags; |
07dc1f9f | 361 | |
dbd98231 | 362 | if (!status) { |
07dc1f9f HL |
363 | numbytes = urb->actual_length; |
364 | ||
365 | if (numbytes) { | |
2032e2c2 | 366 | src = cs->hw.usb->rcvbuf; |
07dc1f9f | 367 | if (unlikely(*src)) |
784d5858 | 368 | dev_warn(cs->dev, |
475be4d8 | 369 | "%s: There was no leading 0, but 0x%02x!\n", |
784d5858 | 370 | __func__, (unsigned) *src); |
07dc1f9f HL |
371 | ++src; /* skip leading 0x00 */ |
372 | --numbytes; | |
373 | if (gigaset_fill_inbuf(inbuf, src, numbytes)) { | |
784d5858 | 374 | gig_dbg(DEBUG_INTR, "%s-->BH", __func__); |
07dc1f9f HL |
375 | gigaset_schedule_event(inbuf->cs); |
376 | } | |
377 | } else | |
784d5858 | 378 | gig_dbg(DEBUG_INTR, "Received zero block length"); |
07dc1f9f HL |
379 | } else { |
380 | /* The urb might have been killed. */ | |
c652cbd8 | 381 | gig_dbg(DEBUG_ANY, "%s - nonzero status received: %d", |
dbd98231 | 382 | __func__, status); |
c652cbd8 TS |
383 | if (status == -ENOENT || status == -ESHUTDOWN) |
384 | /* killed or endpoint shutdown: don't resubmit */ | |
385 | return; | |
07dc1f9f | 386 | } |
784d5858 | 387 | |
c652cbd8 TS |
388 | /* resubmit URB */ |
389 | spin_lock_irqsave(&cs->lock, flags); | |
390 | if (!cs->connected) { | |
69049cc8 | 391 | spin_unlock_irqrestore(&cs->lock, flags); |
c8770dca | 392 | pr_err("%s: disconnected\n", __func__); |
c652cbd8 | 393 | return; |
07dc1f9f | 394 | } |
c652cbd8 TS |
395 | r = usb_submit_urb(urb, GFP_ATOMIC); |
396 | spin_unlock_irqrestore(&cs->lock, flags); | |
397 | if (r) | |
398 | dev_err(cs->dev, "error %d resubmitting URB\n", -r); | |
07dc1f9f HL |
399 | } |
400 | ||
401 | ||
917f5085 | 402 | /* This callback routine is called when data was transmitted to the device. */ |
7d12e780 | 403 | static void gigaset_write_bulk_callback(struct urb *urb) |
07dc1f9f | 404 | { |
d48c7784 | 405 | struct cardstate *cs = urb->context; |
dbd98231 | 406 | int status = urb->status; |
69049cc8 | 407 | unsigned long flags; |
07dc1f9f | 408 | |
c652cbd8 TS |
409 | switch (status) { |
410 | case 0: /* normal completion */ | |
411 | break; | |
412 | case -ENOENT: /* killed */ | |
413 | gig_dbg(DEBUG_ANY, "%s: killed", __func__); | |
9d4bee2b | 414 | cs->hw.usb->busy = 0; |
c652cbd8 TS |
415 | return; |
416 | default: | |
784d5858 | 417 | dev_err(cs->dev, "bulk transfer failed (status %d)\n", |
dbd98231 | 418 | -status); |
917f5085 | 419 | /* That's all we can do. Communication problems |
784d5858 | 420 | are handled by timeouts or network protocols. */ |
c652cbd8 | 421 | } |
07dc1f9f | 422 | |
69049cc8 TS |
423 | spin_lock_irqsave(&cs->lock, flags); |
424 | if (!cs->connected) { | |
c8770dca | 425 | pr_err("%s: disconnected\n", __func__); |
69049cc8 | 426 | } else { |
9d4bee2b | 427 | cs->hw.usb->busy = 0; |
69049cc8 TS |
428 | tasklet_schedule(&cs->write_tasklet); |
429 | } | |
430 | spin_unlock_irqrestore(&cs->lock, flags); | |
07dc1f9f HL |
431 | } |
432 | ||
433 | static int send_cb(struct cardstate *cs, struct cmdbuf_t *cb) | |
434 | { | |
435 | struct cmdbuf_t *tcb; | |
436 | unsigned long flags; | |
437 | int count; | |
2032e2c2 | 438 | int status = -ENOENT; |
07dc1f9f HL |
439 | struct usb_cardstate *ucs = cs->hw.usb; |
440 | ||
441 | do { | |
442 | if (!cb->len) { | |
443 | tcb = cb; | |
444 | ||
445 | spin_lock_irqsave(&cs->cmdlock, flags); | |
446 | cs->cmdbytes -= cs->curlen; | |
784d5858 TS |
447 | gig_dbg(DEBUG_OUTPUT, "send_cb: sent %u bytes, %u left", |
448 | cs->curlen, cs->cmdbytes); | |
07dc1f9f HL |
449 | cs->cmdbuf = cb = cb->next; |
450 | if (cb) { | |
451 | cb->prev = NULL; | |
452 | cs->curlen = cb->len; | |
453 | } else { | |
454 | cs->lastcmdbuf = NULL; | |
455 | cs->curlen = 0; | |
456 | } | |
457 | spin_unlock_irqrestore(&cs->cmdlock, flags); | |
458 | ||
459 | if (tcb->wake_tasklet) | |
460 | tasklet_schedule(tcb->wake_tasklet); | |
461 | kfree(tcb); | |
462 | } | |
463 | if (cb) { | |
464 | count = min(cb->len, ucs->bulk_out_size); | |
69049cc8 TS |
465 | gig_dbg(DEBUG_OUTPUT, "send_cb: send %d bytes", count); |
466 | ||
07dc1f9f | 467 | usb_fill_bulk_urb(ucs->bulk_out_urb, ucs->udev, |
784d5858 | 468 | usb_sndbulkpipe(ucs->udev, |
475be4d8 | 469 | ucs->bulk_out_endpointAddr & 0x0f), |
784d5858 TS |
470 | cb->buf + cb->offset, count, |
471 | gigaset_write_bulk_callback, cs); | |
07dc1f9f HL |
472 | |
473 | cb->offset += count; | |
474 | cb->len -= count; | |
9d4bee2b | 475 | ucs->busy = 1; |
07dc1f9f | 476 | |
69049cc8 | 477 | spin_lock_irqsave(&cs->lock, flags); |
2032e2c2 TS |
478 | status = cs->connected ? |
479 | usb_submit_urb(ucs->bulk_out_urb, GFP_ATOMIC) : | |
480 | -ENODEV; | |
69049cc8 TS |
481 | spin_unlock_irqrestore(&cs->lock, flags); |
482 | ||
07dc1f9f | 483 | if (status) { |
9d4bee2b | 484 | ucs->busy = 0; |
5002779d TS |
485 | dev_err(cs->dev, |
486 | "could not submit urb (error %d)\n", | |
487 | -status); | |
917f5085 TS |
488 | cb->len = 0; /* skip urb => remove cb+wakeup |
489 | in next loop cycle */ | |
07dc1f9f HL |
490 | } |
491 | } | |
917f5085 | 492 | } while (cb && status); /* next command on error */ |
07dc1f9f HL |
493 | |
494 | return status; | |
495 | } | |
496 | ||
917f5085 | 497 | /* Send command to device. */ |
e3628dd1 | 498 | static int gigaset_write_cmd(struct cardstate *cs, struct cmdbuf_t *cb) |
07dc1f9f | 499 | { |
07dc1f9f HL |
500 | unsigned long flags; |
501 | ||
9d4bee2b | 502 | gigaset_dbg_buffer(cs->mstate != MS_LOCKED ? |
475be4d8 | 503 | DEBUG_TRANSCMD : DEBUG_LOCKCMD, |
e3628dd1 | 504 | "CMD Transmit", cb->len, cb->buf); |
07dc1f9f HL |
505 | |
506 | spin_lock_irqsave(&cs->cmdlock, flags); | |
507 | cb->prev = cs->lastcmdbuf; | |
508 | if (cs->lastcmdbuf) | |
509 | cs->lastcmdbuf->next = cb; | |
510 | else { | |
511 | cs->cmdbuf = cb; | |
e3628dd1 | 512 | cs->curlen = cb->len; |
07dc1f9f | 513 | } |
e3628dd1 | 514 | cs->cmdbytes += cb->len; |
07dc1f9f HL |
515 | cs->lastcmdbuf = cb; |
516 | spin_unlock_irqrestore(&cs->cmdlock, flags); | |
517 | ||
69049cc8 TS |
518 | spin_lock_irqsave(&cs->lock, flags); |
519 | if (cs->connected) | |
520 | tasklet_schedule(&cs->write_tasklet); | |
521 | spin_unlock_irqrestore(&cs->lock, flags); | |
e3628dd1 | 522 | return cb->len; |
07dc1f9f HL |
523 | } |
524 | ||
525 | static int gigaset_write_room(struct cardstate *cs) | |
526 | { | |
07dc1f9f HL |
527 | unsigned bytes; |
528 | ||
07dc1f9f | 529 | bytes = cs->cmdbytes; |
07dc1f9f HL |
530 | return bytes < IF_WRITEBUF ? IF_WRITEBUF - bytes : 0; |
531 | } | |
532 | ||
533 | static int gigaset_chars_in_buffer(struct cardstate *cs) | |
534 | { | |
535 | return cs->cmdbytes; | |
536 | } | |
537 | ||
b88bd956 TS |
538 | /* |
539 | * set the break characters on the internal serial adapter | |
540 | * using undocumented device commands reverse engineered from USB traces | |
541 | * of the Siemens Windows driver | |
542 | */ | |
07dc1f9f HL |
543 | static int gigaset_brkchars(struct cardstate *cs, const unsigned char buf[6]) |
544 | { | |
784d5858 TS |
545 | struct usb_device *udev = cs->hw.usb->udev; |
546 | ||
01371500 | 547 | gigaset_dbg_buffer(DEBUG_USBREQ, "brkchars", 6, buf); |
07dc1f9f | 548 | memcpy(cs->hw.usb->bchars, buf, 6); |
784d5858 TS |
549 | return usb_control_msg(udev, usb_sndctrlpipe(udev, 0), 0x19, 0x41, |
550 | 0, 0, &buf, 6, 2000); | |
07dc1f9f HL |
551 | } |
552 | ||
553 | static int gigaset_freebcshw(struct bc_state *bcs) | |
554 | { | |
21d36495 | 555 | /* unused */ |
07dc1f9f HL |
556 | return 1; |
557 | } | |
558 | ||
559 | /* Initialize the b-channel structure */ | |
560 | static int gigaset_initbcshw(struct bc_state *bcs) | |
561 | { | |
21d36495 TS |
562 | /* unused */ |
563 | bcs->hw.usb = NULL; | |
07dc1f9f HL |
564 | return 1; |
565 | } | |
566 | ||
567 | static void gigaset_reinitbcshw(struct bc_state *bcs) | |
568 | { | |
21d36495 | 569 | /* nothing to do for M10x */ |
07dc1f9f HL |
570 | } |
571 | ||
572 | static void gigaset_freecshw(struct cardstate *cs) | |
573 | { | |
07dc1f9f HL |
574 | tasklet_kill(&cs->write_tasklet); |
575 | kfree(cs->hw.usb); | |
576 | } | |
577 | ||
578 | static int gigaset_initcshw(struct cardstate *cs) | |
579 | { | |
580 | struct usb_cardstate *ucs; | |
581 | ||
582 | cs->hw.usb = ucs = | |
583 | kmalloc(sizeof(struct usb_cardstate), GFP_KERNEL); | |
c8770dca TS |
584 | if (!ucs) { |
585 | pr_err("out of memory\n"); | |
07dc1f9f | 586 | return 0; |
c8770dca | 587 | } |
07dc1f9f HL |
588 | |
589 | ucs->bchars[0] = 0; | |
590 | ucs->bchars[1] = 0; | |
591 | ucs->bchars[2] = 0; | |
592 | ucs->bchars[3] = 0; | |
593 | ucs->bchars[4] = 0x11; | |
594 | ucs->bchars[5] = 0x13; | |
595 | ucs->bulk_out_buffer = NULL; | |
596 | ucs->bulk_out_urb = NULL; | |
07dc1f9f HL |
597 | ucs->read_urb = NULL; |
598 | tasklet_init(&cs->write_tasklet, | |
5452fee2 | 599 | gigaset_modem_fill, (unsigned long) cs); |
07dc1f9f HL |
600 | |
601 | return 1; | |
602 | } | |
603 | ||
917f5085 | 604 | /* Send data from current skb to the device. */ |
07dc1f9f HL |
605 | static int write_modem(struct cardstate *cs) |
606 | { | |
d48c7784 | 607 | int ret = 0; |
07dc1f9f HL |
608 | int count; |
609 | struct bc_state *bcs = &cs->bcs[0]; /* only one channel */ | |
610 | struct usb_cardstate *ucs = cs->hw.usb; | |
69049cc8 | 611 | unsigned long flags; |
07dc1f9f | 612 | |
1528b18f | 613 | gig_dbg(DEBUG_OUTPUT, "len: %d...", bcs->tx_skb->len); |
07dc1f9f | 614 | |
07dc1f9f HL |
615 | if (!bcs->tx_skb->len) { |
616 | dev_kfree_skb_any(bcs->tx_skb); | |
617 | bcs->tx_skb = NULL; | |
618 | return -EINVAL; | |
619 | } | |
620 | ||
2032e2c2 | 621 | /* Copy data to bulk out buffer and transmit data */ |
07dc1f9f | 622 | count = min(bcs->tx_skb->len, (unsigned) ucs->bulk_out_size); |
d626f62b | 623 | skb_copy_from_linear_data(bcs->tx_skb, ucs->bulk_out_buffer, count); |
07dc1f9f | 624 | skb_pull(bcs->tx_skb, count); |
9d4bee2b | 625 | ucs->busy = 1; |
784d5858 | 626 | gig_dbg(DEBUG_OUTPUT, "write_modem: send %d bytes", count); |
07dc1f9f | 627 | |
69049cc8 TS |
628 | spin_lock_irqsave(&cs->lock, flags); |
629 | if (cs->connected) { | |
630 | usb_fill_bulk_urb(ucs->bulk_out_urb, ucs->udev, | |
631 | usb_sndbulkpipe(ucs->udev, | |
2032e2c2 TS |
632 | ucs->bulk_out_endpointAddr & |
633 | 0x0f), | |
69049cc8 TS |
634 | ucs->bulk_out_buffer, count, |
635 | gigaset_write_bulk_callback, cs); | |
54e6ecb2 | 636 | ret = usb_submit_urb(ucs->bulk_out_urb, GFP_ATOMIC); |
69049cc8 TS |
637 | } else { |
638 | ret = -ENODEV; | |
639 | } | |
640 | spin_unlock_irqrestore(&cs->lock, flags); | |
641 | ||
07dc1f9f | 642 | if (ret) { |
5002779d | 643 | dev_err(cs->dev, "could not submit urb (error %d)\n", -ret); |
9d4bee2b | 644 | ucs->busy = 0; |
07dc1f9f | 645 | } |
69049cc8 | 646 | |
07dc1f9f HL |
647 | if (!bcs->tx_skb->len) { |
648 | /* skb sent completely */ | |
2032e2c2 | 649 | gigaset_skb_sent(bcs, bcs->tx_skb); |
07dc1f9f | 650 | |
784d5858 TS |
651 | gig_dbg(DEBUG_INTR, "kfree skb (Adr: %lx)!", |
652 | (unsigned long) bcs->tx_skb); | |
07dc1f9f HL |
653 | dev_kfree_skb_any(bcs->tx_skb); |
654 | bcs->tx_skb = NULL; | |
655 | } | |
656 | ||
657 | return ret; | |
07dc1f9f HL |
658 | } |
659 | ||
660 | static int gigaset_probe(struct usb_interface *interface, | |
784d5858 | 661 | const struct usb_device_id *id) |
07dc1f9f HL |
662 | { |
663 | int retval; | |
664 | struct usb_device *udev = interface_to_usbdev(interface); | |
c652cbd8 | 665 | struct usb_host_interface *hostif = interface->cur_altsetting; |
07dc1f9f HL |
666 | struct cardstate *cs = NULL; |
667 | struct usb_cardstate *ucs = NULL; | |
07dc1f9f | 668 | struct usb_endpoint_descriptor *endpoint; |
07dc1f9f | 669 | int buffer_size; |
07dc1f9f | 670 | |
c652cbd8 | 671 | gig_dbg(DEBUG_ANY, "%s: Check if device matches ...", __func__); |
07dc1f9f HL |
672 | |
673 | /* See if the device offered us matches what we can accept */ | |
bfe2e934 | 674 | if ((le16_to_cpu(udev->descriptor.idVendor) != USB_M105_VENDOR_ID) || |
c652cbd8 TS |
675 | (le16_to_cpu(udev->descriptor.idProduct) != USB_M105_PRODUCT_ID)) { |
676 | gig_dbg(DEBUG_ANY, "device ID (0x%x, 0x%x) not for me - skip", | |
677 | le16_to_cpu(udev->descriptor.idVendor), | |
678 | le16_to_cpu(udev->descriptor.idProduct)); | |
07dc1f9f | 679 | return -ENODEV; |
c652cbd8 TS |
680 | } |
681 | if (hostif->desc.bInterfaceNumber != 0) { | |
682 | gig_dbg(DEBUG_ANY, "interface %d not for me - skip", | |
683 | hostif->desc.bInterfaceNumber); | |
684 | return -ENODEV; | |
685 | } | |
686 | if (hostif->desc.bAlternateSetting != 0) { | |
687 | dev_notice(&udev->dev, "unsupported altsetting %d - skip", | |
688 | hostif->desc.bAlternateSetting); | |
07dc1f9f HL |
689 | return -ENODEV; |
690 | } | |
07dc1f9f | 691 | if (hostif->desc.bInterfaceClass != 255) { |
c652cbd8 TS |
692 | dev_notice(&udev->dev, "unsupported interface class %d - skip", |
693 | hostif->desc.bInterfaceClass); | |
07dc1f9f HL |
694 | return -ENODEV; |
695 | } | |
696 | ||
784d5858 | 697 | dev_info(&udev->dev, "%s: Device matched ... !\n", __func__); |
07dc1f9f | 698 | |
b595076a | 699 | /* allocate memory for our device state and initialize it */ |
e468c048 TS |
700 | cs = gigaset_initcs(driver, 1, 1, 0, cidmode, GIGASET_MODULENAME); |
701 | if (!cs) | |
07dc1f9f | 702 | return -ENODEV; |
07dc1f9f HL |
703 | ucs = cs->hw.usb; |
704 | ||
784d5858 TS |
705 | /* save off device structure ptrs for later use */ |
706 | usb_get_dev(udev); | |
707 | ucs->udev = udev; | |
708 | ucs->interface = interface; | |
b1d47464 TS |
709 | cs->dev = &interface->dev; |
710 | ||
711 | /* save address of controller structure */ | |
b88bd956 | 712 | usb_set_intfdata(interface, cs); |
784d5858 | 713 | |
07dc1f9f HL |
714 | endpoint = &hostif->endpoint[0].desc; |
715 | ||
716 | buffer_size = le16_to_cpu(endpoint->wMaxPacketSize); | |
717 | ucs->bulk_out_size = buffer_size; | |
718 | ucs->bulk_out_endpointAddr = endpoint->bEndpointAddress; | |
719 | ucs->bulk_out_buffer = kmalloc(buffer_size, GFP_KERNEL); | |
720 | if (!ucs->bulk_out_buffer) { | |
784d5858 | 721 | dev_err(cs->dev, "Couldn't allocate bulk_out_buffer\n"); |
07dc1f9f HL |
722 | retval = -ENOMEM; |
723 | goto error; | |
724 | } | |
725 | ||
e94b1766 | 726 | ucs->bulk_out_urb = usb_alloc_urb(0, GFP_KERNEL); |
07dc1f9f | 727 | if (!ucs->bulk_out_urb) { |
784d5858 | 728 | dev_err(cs->dev, "Couldn't allocate bulk_out_urb\n"); |
07dc1f9f HL |
729 | retval = -ENOMEM; |
730 | goto error; | |
731 | } | |
732 | ||
733 | endpoint = &hostif->endpoint[1].desc; | |
734 | ||
9d4bee2b | 735 | ucs->busy = 0; |
07dc1f9f | 736 | |
e94b1766 | 737 | ucs->read_urb = usb_alloc_urb(0, GFP_KERNEL); |
07dc1f9f | 738 | if (!ucs->read_urb) { |
784d5858 | 739 | dev_err(cs->dev, "No free urbs available\n"); |
07dc1f9f HL |
740 | retval = -ENOMEM; |
741 | goto error; | |
742 | } | |
743 | buffer_size = le16_to_cpu(endpoint->wMaxPacketSize); | |
744 | ucs->rcvbuf_size = buffer_size; | |
745 | ucs->int_in_endpointAddr = endpoint->bEndpointAddress; | |
2032e2c2 TS |
746 | ucs->rcvbuf = kmalloc(buffer_size, GFP_KERNEL); |
747 | if (!ucs->rcvbuf) { | |
784d5858 | 748 | dev_err(cs->dev, "Couldn't allocate rcvbuf\n"); |
07dc1f9f HL |
749 | retval = -ENOMEM; |
750 | goto error; | |
751 | } | |
752 | /* Fill the interrupt urb and send it to the core */ | |
753 | usb_fill_int_urb(ucs->read_urb, udev, | |
784d5858 TS |
754 | usb_rcvintpipe(udev, |
755 | endpoint->bEndpointAddress & 0x0f), | |
2032e2c2 | 756 | ucs->rcvbuf, buffer_size, |
784d5858 | 757 | gigaset_read_int_callback, |
2032e2c2 | 758 | cs, endpoint->bInterval); |
07dc1f9f | 759 | |
e94b1766 | 760 | retval = usb_submit_urb(ucs->read_urb, GFP_KERNEL); |
07dc1f9f | 761 | if (retval) { |
784d5858 | 762 | dev_err(cs->dev, "Could not submit URB (error %d)\n", -retval); |
07dc1f9f HL |
763 | goto error; |
764 | } | |
765 | ||
766 | /* tell common part that the device is ready */ | |
767 | if (startmode == SM_LOCKED) | |
9d4bee2b | 768 | cs->mstate = MS_LOCKED; |
b1d47464 | 769 | |
07dc1f9f HL |
770 | if (!gigaset_start(cs)) { |
771 | tasklet_kill(&cs->write_tasklet); | |
2032e2c2 | 772 | retval = -ENODEV; |
07dc1f9f HL |
773 | goto error; |
774 | } | |
07dc1f9f HL |
775 | return 0; |
776 | ||
777 | error: | |
ead54fcd | 778 | usb_kill_urb(ucs->read_urb); |
07dc1f9f | 779 | kfree(ucs->bulk_out_buffer); |
ead54fcd | 780 | usb_free_urb(ucs->bulk_out_urb); |
2032e2c2 | 781 | kfree(ucs->rcvbuf); |
ead54fcd | 782 | usb_free_urb(ucs->read_urb); |
b1d47464 | 783 | usb_set_intfdata(interface, NULL); |
07dc1f9f | 784 | ucs->read_urb = ucs->bulk_out_urb = NULL; |
2032e2c2 | 785 | ucs->rcvbuf = ucs->bulk_out_buffer = NULL; |
784d5858 TS |
786 | usb_put_dev(ucs->udev); |
787 | ucs->udev = NULL; | |
788 | ucs->interface = NULL; | |
e468c048 | 789 | gigaset_freecs(cs); |
07dc1f9f HL |
790 | return retval; |
791 | } | |
792 | ||
07dc1f9f HL |
793 | static void gigaset_disconnect(struct usb_interface *interface) |
794 | { | |
795 | struct cardstate *cs; | |
796 | struct usb_cardstate *ucs; | |
797 | ||
798 | cs = usb_get_intfdata(interface); | |
07dc1f9f | 799 | ucs = cs->hw.usb; |
c652cbd8 TS |
800 | |
801 | dev_info(cs->dev, "disconnecting Gigaset USB adapter\n"); | |
802 | ||
07dc1f9f | 803 | usb_kill_urb(ucs->read_urb); |
07dc1f9f HL |
804 | |
805 | gigaset_stop(cs); | |
806 | ||
b1d47464 | 807 | usb_set_intfdata(interface, NULL); |
07dc1f9f HL |
808 | tasklet_kill(&cs->write_tasklet); |
809 | ||
c652cbd8 | 810 | usb_kill_urb(ucs->bulk_out_urb); |
07dc1f9f HL |
811 | |
812 | kfree(ucs->bulk_out_buffer); | |
ead54fcd | 813 | usb_free_urb(ucs->bulk_out_urb); |
2032e2c2 | 814 | kfree(ucs->rcvbuf); |
ead54fcd | 815 | usb_free_urb(ucs->read_urb); |
917f5085 | 816 | ucs->read_urb = ucs->bulk_out_urb = NULL; |
2032e2c2 | 817 | ucs->rcvbuf = ucs->bulk_out_buffer = NULL; |
07dc1f9f | 818 | |
b1d47464 TS |
819 | usb_put_dev(ucs->udev); |
820 | ucs->interface = NULL; | |
821 | ucs->udev = NULL; | |
822 | cs->dev = NULL; | |
e468c048 | 823 | gigaset_freecs(cs); |
07dc1f9f HL |
824 | } |
825 | ||
1ff0a529 TS |
826 | /* gigaset_suspend |
827 | * This function is called before the USB connection is suspended or reset. | |
828 | */ | |
829 | static int gigaset_suspend(struct usb_interface *intf, pm_message_t message) | |
830 | { | |
831 | struct cardstate *cs = usb_get_intfdata(intf); | |
832 | ||
833 | /* stop activity */ | |
834 | cs->connected = 0; /* prevent rescheduling */ | |
835 | usb_kill_urb(cs->hw.usb->read_urb); | |
836 | tasklet_kill(&cs->write_tasklet); | |
837 | usb_kill_urb(cs->hw.usb->bulk_out_urb); | |
838 | ||
839 | gig_dbg(DEBUG_SUSPEND, "suspend complete"); | |
840 | return 0; | |
841 | } | |
842 | ||
843 | /* gigaset_resume | |
844 | * This function is called after the USB connection has been resumed or reset. | |
845 | */ | |
846 | static int gigaset_resume(struct usb_interface *intf) | |
847 | { | |
848 | struct cardstate *cs = usb_get_intfdata(intf); | |
849 | int rc; | |
850 | ||
851 | /* resubmit interrupt URB */ | |
852 | cs->connected = 1; | |
853 | rc = usb_submit_urb(cs->hw.usb->read_urb, GFP_KERNEL); | |
854 | if (rc) { | |
855 | dev_err(cs->dev, "Could not submit read URB (error %d)\n", -rc); | |
856 | return rc; | |
857 | } | |
858 | ||
859 | gig_dbg(DEBUG_SUSPEND, "resume complete"); | |
860 | return 0; | |
861 | } | |
862 | ||
863 | /* gigaset_pre_reset | |
864 | * This function is called before the USB connection is reset. | |
865 | */ | |
866 | static int gigaset_pre_reset(struct usb_interface *intf) | |
867 | { | |
868 | /* same as suspend */ | |
869 | return gigaset_suspend(intf, PMSG_ON); | |
870 | } | |
871 | ||
35dc8457 | 872 | static const struct gigaset_ops ops = { |
07dc1f9f HL |
873 | gigaset_write_cmd, |
874 | gigaset_write_room, | |
875 | gigaset_chars_in_buffer, | |
876 | gigaset_brkchars, | |
877 | gigaset_init_bchannel, | |
878 | gigaset_close_bchannel, | |
879 | gigaset_initbcshw, | |
880 | gigaset_freebcshw, | |
881 | gigaset_reinitbcshw, | |
882 | gigaset_initcshw, | |
883 | gigaset_freecshw, | |
884 | gigaset_set_modem_ctrl, | |
885 | gigaset_baud_rate, | |
886 | gigaset_set_line_ctrl, | |
887 | gigaset_m10x_send_skb, | |
888 | gigaset_m10x_input, | |
889 | }; | |
890 | ||
b88bd956 | 891 | /* |
07dc1f9f HL |
892 | * This function is called while kernel-module is loaded |
893 | */ | |
894 | static int __init usb_gigaset_init(void) | |
895 | { | |
896 | int result; | |
897 | ||
b595076a | 898 | /* allocate memory for our driver state and initialize it */ |
2032e2c2 TS |
899 | driver = gigaset_initdriver(GIGASET_MINOR, GIGASET_MINORS, |
900 | GIGASET_MODULENAME, GIGASET_DEVNAME, | |
901 | &ops, THIS_MODULE); | |
902 | if (driver == NULL) | |
07dc1f9f HL |
903 | goto error; |
904 | ||
07dc1f9f HL |
905 | /* register this driver with the USB subsystem */ |
906 | result = usb_register(&gigaset_usb_driver); | |
907 | if (result < 0) { | |
c8770dca | 908 | pr_err("error %d registering USB driver\n", -result); |
07dc1f9f HL |
909 | goto error; |
910 | } | |
911 | ||
c8770dca | 912 | pr_info(DRIVER_DESC "\n"); |
07dc1f9f HL |
913 | return 0; |
914 | ||
e468c048 | 915 | error: |
07dc1f9f HL |
916 | if (driver) |
917 | gigaset_freedriver(driver); | |
918 | driver = NULL; | |
919 | return -1; | |
920 | } | |
921 | ||
b88bd956 | 922 | /* |
07dc1f9f HL |
923 | * This function is called while unloading the kernel-module |
924 | */ | |
925 | static void __exit usb_gigaset_exit(void) | |
926 | { | |
e468c048 TS |
927 | int i; |
928 | ||
07dc1f9f | 929 | gigaset_blockdriver(driver); /* => probe will fail |
784d5858 TS |
930 | * => no gigaset_start any more |
931 | */ | |
07dc1f9f | 932 | |
e468c048 TS |
933 | /* stop all connected devices */ |
934 | for (i = 0; i < driver->minors; i++) | |
935 | gigaset_shutdown(driver->cs + i); | |
936 | ||
07dc1f9f HL |
937 | /* from now on, no isdn callback should be possible */ |
938 | ||
939 | /* deregister this driver with the USB subsystem */ | |
940 | usb_deregister(&gigaset_usb_driver); | |
941 | /* this will call the disconnect-callback */ | |
942 | /* from now on, no disconnect/probe callback should be running */ | |
943 | ||
07dc1f9f HL |
944 | gigaset_freedriver(driver); |
945 | driver = NULL; | |
946 | } | |
947 | ||
948 | ||
949 | module_init(usb_gigaset_init); | |
950 | module_exit(usb_gigaset_exit); | |
951 | ||
952 | MODULE_AUTHOR(DRIVER_AUTHOR); | |
953 | MODULE_DESCRIPTION(DRIVER_DESC); | |
954 | ||
955 | MODULE_LICENSE("GPL"); |