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 */ | |
53 | static struct usb_device_id gigaset_table [] = { | |
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 | ||
107 | static int gigaset_probe(struct usb_interface *interface, | |
784d5858 | 108 | const struct usb_device_id *id); |
07dc1f9f HL |
109 | static void gigaset_disconnect(struct usb_interface *interface); |
110 | ||
111 | static struct gigaset_driver *driver = NULL; | |
112 | static struct cardstate *cardstate = NULL; | |
113 | ||
114 | /* usb specific object needed to register this driver with the usb subsystem */ | |
115 | static struct usb_driver gigaset_usb_driver = { | |
917f5085 TS |
116 | .name = GIGASET_MODULENAME, |
117 | .probe = gigaset_probe, | |
118 | .disconnect = gigaset_disconnect, | |
119 | .id_table = gigaset_table, | |
07dc1f9f HL |
120 | }; |
121 | ||
122 | struct usb_cardstate { | |
917f5085 TS |
123 | struct usb_device *udev; /* usb device pointer */ |
124 | struct usb_interface *interface; /* interface for this device */ | |
125 | atomic_t busy; /* bulk output in progress */ | |
126 | ||
127 | /* Output buffer */ | |
784d5858 TS |
128 | unsigned char *bulk_out_buffer; |
129 | int bulk_out_size; | |
130 | __u8 bulk_out_endpointAddr; | |
131 | struct urb *bulk_out_urb; | |
917f5085 TS |
132 | |
133 | /* Input buffer */ | |
784d5858 TS |
134 | int rcvbuf_size; |
135 | struct urb *read_urb; | |
136 | __u8 int_in_endpointAddr; | |
917f5085 | 137 | |
784d5858 | 138 | char bchars[6]; /* for request 0x19 */ |
07dc1f9f HL |
139 | }; |
140 | ||
141 | struct usb_bc_state {}; | |
142 | ||
143 | static inline unsigned tiocm_to_gigaset(unsigned state) | |
144 | { | |
145 | return ((state & TIOCM_DTR) ? 1 : 0) | ((state & TIOCM_RTS) ? 2 : 0); | |
146 | } | |
147 | ||
148 | #ifdef CONFIG_GIGASET_UNDOCREQ | |
149 | /* WARNING: EXPERIMENTAL! */ | |
150 | static int gigaset_set_modem_ctrl(struct cardstate *cs, unsigned old_state, | |
784d5858 | 151 | unsigned new_state) |
07dc1f9f | 152 | { |
784d5858 | 153 | struct usb_device *udev = cs->hw.usb->udev; |
07dc1f9f HL |
154 | unsigned mask, val; |
155 | int r; | |
156 | ||
157 | mask = tiocm_to_gigaset(old_state ^ new_state); | |
158 | val = tiocm_to_gigaset(new_state); | |
159 | ||
784d5858 | 160 | gig_dbg(DEBUG_USBREQ, "set flags 0x%02x with mask 0x%02x", val, mask); |
917f5085 | 161 | // don't use this in an interrupt/BH |
784d5858 TS |
162 | r = usb_control_msg(udev, usb_sndctrlpipe(udev, 0), 7, 0x41, |
163 | (val & 0xff) | ((mask & 0xff) << 8), 0, | |
164 | NULL, 0, 2000 /* timeout? */); | |
07dc1f9f HL |
165 | if (r < 0) |
166 | return r; | |
167 | //.. | |
168 | return 0; | |
169 | } | |
170 | ||
171 | static int set_value(struct cardstate *cs, u8 req, u16 val) | |
172 | { | |
784d5858 | 173 | struct usb_device *udev = cs->hw.usb->udev; |
07dc1f9f HL |
174 | int r, r2; |
175 | ||
784d5858 TS |
176 | gig_dbg(DEBUG_USBREQ, "request %02x (%04x)", |
177 | (unsigned)req, (unsigned)val); | |
178 | r = usb_control_msg(udev, usb_sndctrlpipe(udev, 0), 0x12, 0x41, | |
179 | 0xf /*?*/, 0, NULL, 0, 2000 /*?*/); | |
180 | /* no idea what this does */ | |
07dc1f9f | 181 | if (r < 0) { |
784d5858 | 182 | dev_err(&udev->dev, "error %d on request 0x12\n", -r); |
07dc1f9f HL |
183 | return r; |
184 | } | |
185 | ||
784d5858 TS |
186 | r = usb_control_msg(udev, usb_sndctrlpipe(udev, 0), req, 0x41, |
187 | val, 0, NULL, 0, 2000 /*?*/); | |
07dc1f9f | 188 | if (r < 0) |
784d5858 TS |
189 | dev_err(&udev->dev, "error %d on request 0x%02x\n", |
190 | -r, (unsigned)req); | |
07dc1f9f | 191 | |
784d5858 TS |
192 | r2 = usb_control_msg(udev, usb_sndctrlpipe(udev, 0), 0x19, 0x41, |
193 | 0, 0, cs->hw.usb->bchars, 6, 2000 /*?*/); | |
07dc1f9f | 194 | if (r2 < 0) |
784d5858 | 195 | dev_err(&udev->dev, "error %d on request 0x19\n", -r2); |
07dc1f9f HL |
196 | |
197 | return r < 0 ? r : (r2 < 0 ? r2 : 0); | |
198 | } | |
199 | ||
200 | /* WARNING: HIGHLY EXPERIMENTAL! */ | |
201 | // don't use this in an interrupt/BH | |
202 | static int gigaset_baud_rate(struct cardstate *cs, unsigned cflag) | |
203 | { | |
204 | u16 val; | |
205 | u32 rate; | |
206 | ||
207 | cflag &= CBAUD; | |
208 | ||
209 | switch (cflag) { | |
210 | //FIXME more values? | |
211 | case B300: rate = 300; break; | |
212 | case B600: rate = 600; break; | |
213 | case B1200: rate = 1200; break; | |
214 | case B2400: rate = 2400; break; | |
215 | case B4800: rate = 4800; break; | |
216 | case B9600: rate = 9600; break; | |
217 | case B19200: rate = 19200; break; | |
218 | case B38400: rate = 38400; break; | |
219 | case B57600: rate = 57600; break; | |
220 | case B115200: rate = 115200; break; | |
221 | default: | |
222 | rate = 9600; | |
784d5858 TS |
223 | dev_err(cs->dev, "unsupported baudrate request 0x%x," |
224 | " using default of B9600\n", cflag); | |
07dc1f9f HL |
225 | } |
226 | ||
227 | val = 0x383fff / rate + 1; | |
228 | ||
229 | return set_value(cs, 1, val); | |
230 | } | |
231 | ||
232 | /* WARNING: HIGHLY EXPERIMENTAL! */ | |
233 | // don't use this in an interrupt/BH | |
234 | static int gigaset_set_line_ctrl(struct cardstate *cs, unsigned cflag) | |
235 | { | |
236 | u16 val = 0; | |
237 | ||
238 | /* set the parity */ | |
239 | if (cflag & PARENB) | |
240 | val |= (cflag & PARODD) ? 0x10 : 0x20; | |
241 | ||
242 | /* set the number of data bits */ | |
243 | switch (cflag & CSIZE) { | |
244 | case CS5: | |
245 | val |= 5 << 8; break; | |
246 | case CS6: | |
247 | val |= 6 << 8; break; | |
248 | case CS7: | |
249 | val |= 7 << 8; break; | |
250 | case CS8: | |
251 | val |= 8 << 8; break; | |
252 | default: | |
784d5858 | 253 | dev_err(cs->dev, "CSIZE was not CS5-CS8, using default of 8\n"); |
07dc1f9f HL |
254 | val |= 8 << 8; |
255 | break; | |
256 | } | |
257 | ||
258 | /* set the number of stop bits */ | |
259 | if (cflag & CSTOPB) { | |
260 | if ((cflag & CSIZE) == CS5) | |
261 | val |= 1; /* 1.5 stop bits */ //FIXME is this okay? | |
262 | else | |
263 | val |= 2; /* 2 stop bits */ | |
264 | } | |
265 | ||
266 | return set_value(cs, 3, val); | |
267 | } | |
268 | ||
269 | #else | |
270 | static int gigaset_set_modem_ctrl(struct cardstate *cs, unsigned old_state, | |
784d5858 | 271 | unsigned new_state) |
07dc1f9f HL |
272 | { |
273 | return -EINVAL; | |
274 | } | |
275 | ||
276 | static int gigaset_set_line_ctrl(struct cardstate *cs, unsigned cflag) | |
277 | { | |
278 | return -EINVAL; | |
279 | } | |
280 | ||
281 | static int gigaset_baud_rate(struct cardstate *cs, unsigned cflag) | |
282 | { | |
283 | return -EINVAL; | |
284 | } | |
285 | #endif | |
286 | ||
287 | ||
288 | /*================================================================================================================*/ | |
289 | static int gigaset_init_bchannel(struct bc_state *bcs) | |
290 | { | |
291 | /* nothing to do for M10x */ | |
292 | gigaset_bchannel_up(bcs); | |
293 | return 0; | |
294 | } | |
295 | ||
296 | static int gigaset_close_bchannel(struct bc_state *bcs) | |
297 | { | |
298 | /* nothing to do for M10x */ | |
299 | gigaset_bchannel_down(bcs); | |
300 | return 0; | |
301 | } | |
302 | ||
07dc1f9f HL |
303 | static int write_modem(struct cardstate *cs); |
304 | static int send_cb(struct cardstate *cs, struct cmdbuf_t *cb); | |
305 | ||
306 | ||
917f5085 TS |
307 | /* Write tasklet handler: Continue sending current skb, or send command, or |
308 | * start sending an skb from the send queue. | |
07dc1f9f HL |
309 | */ |
310 | static void gigaset_modem_fill(unsigned long data) | |
311 | { | |
312 | struct cardstate *cs = (struct cardstate *) data; | |
313 | struct bc_state *bcs = &cs->bcs[0]; /* only one channel */ | |
314 | struct cmdbuf_t *cb; | |
315 | unsigned long flags; | |
316 | int again; | |
317 | ||
784d5858 | 318 | gig_dbg(DEBUG_OUTPUT, "modem_fill"); |
07dc1f9f HL |
319 | |
320 | if (atomic_read(&cs->hw.usb->busy)) { | |
784d5858 | 321 | gig_dbg(DEBUG_OUTPUT, "modem_fill: busy"); |
07dc1f9f HL |
322 | return; |
323 | } | |
324 | ||
325 | do { | |
326 | again = 0; | |
327 | if (!bcs->tx_skb) { /* no skb is being sent */ | |
328 | spin_lock_irqsave(&cs->cmdlock, flags); | |
329 | cb = cs->cmdbuf; | |
330 | spin_unlock_irqrestore(&cs->cmdlock, flags); | |
331 | if (cb) { /* commands to send? */ | |
784d5858 | 332 | gig_dbg(DEBUG_OUTPUT, "modem_fill: cb"); |
07dc1f9f | 333 | if (send_cb(cs, cb) < 0) { |
784d5858 TS |
334 | gig_dbg(DEBUG_OUTPUT, |
335 | "modem_fill: send_cb failed"); | |
917f5085 TS |
336 | again = 1; /* no callback will be |
337 | called! */ | |
07dc1f9f HL |
338 | } |
339 | } else { /* skbs to send? */ | |
340 | bcs->tx_skb = skb_dequeue(&bcs->squeue); | |
341 | if (bcs->tx_skb) | |
784d5858 TS |
342 | gig_dbg(DEBUG_INTR, |
343 | "Dequeued skb (Adr: %lx)!", | |
344 | (unsigned long) bcs->tx_skb); | |
07dc1f9f HL |
345 | } |
346 | } | |
347 | ||
348 | if (bcs->tx_skb) { | |
784d5858 | 349 | gig_dbg(DEBUG_OUTPUT, "modem_fill: tx_skb"); |
07dc1f9f | 350 | if (write_modem(cs) < 0) { |
784d5858 TS |
351 | gig_dbg(DEBUG_OUTPUT, |
352 | "modem_fill: write_modem failed"); | |
07dc1f9f HL |
353 | // FIXME should we tell the LL? |
354 | again = 1; /* no callback will be called! */ | |
355 | } | |
356 | } | |
357 | } while (again); | |
358 | } | |
359 | ||
360 | /** | |
361 | * gigaset_read_int_callback | |
362 | * | |
784d5858 | 363 | * It is called if the data was received from the device. |
07dc1f9f | 364 | */ |
7d12e780 | 365 | static void gigaset_read_int_callback(struct urb *urb) |
07dc1f9f | 366 | { |
d48c7784 TS |
367 | struct inbuf_t *inbuf = urb->context; |
368 | struct cardstate *cs = inbuf->cs; | |
07dc1f9f HL |
369 | int resubmit = 0; |
370 | int r; | |
07dc1f9f HL |
371 | unsigned numbytes; |
372 | unsigned char *src; | |
69049cc8 | 373 | unsigned long flags; |
07dc1f9f HL |
374 | |
375 | if (!urb->status) { | |
69049cc8 TS |
376 | if (!cs->connected) { |
377 | err("%s: disconnected", __func__); /* should never happen */ | |
378 | return; | |
379 | } | |
380 | ||
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 | resubmit = 1; |
398 | } else { | |
399 | /* The urb might have been killed. */ | |
784d5858 TS |
400 | gig_dbg(DEBUG_ANY, "%s - nonzero read bulk status received: %d", |
401 | __func__, urb->status); | |
69049cc8 TS |
402 | if (urb->status != -ENOENT) { /* not killed */ |
403 | if (!cs->connected) { | |
404 | err("%s: disconnected", __func__); /* should never happen */ | |
405 | return; | |
406 | } | |
07dc1f9f | 407 | resubmit = 1; |
69049cc8 | 408 | } |
07dc1f9f | 409 | } |
784d5858 | 410 | |
07dc1f9f | 411 | if (resubmit) { |
69049cc8 | 412 | spin_lock_irqsave(&cs->lock, flags); |
54e6ecb2 | 413 | r = cs->connected ? usb_submit_urb(urb, GFP_ATOMIC) : -ENODEV; |
69049cc8 | 414 | spin_unlock_irqrestore(&cs->lock, flags); |
07dc1f9f | 415 | if (r) |
784d5858 TS |
416 | dev_err(cs->dev, "error %d when resubmitting urb.\n", |
417 | -r); | |
07dc1f9f HL |
418 | } |
419 | } | |
420 | ||
421 | ||
917f5085 | 422 | /* This callback routine is called when data was transmitted to the device. */ |
7d12e780 | 423 | static void gigaset_write_bulk_callback(struct urb *urb) |
07dc1f9f | 424 | { |
d48c7784 | 425 | struct cardstate *cs = urb->context; |
69049cc8 | 426 | unsigned long flags; |
07dc1f9f | 427 | |
07dc1f9f | 428 | if (urb->status) |
784d5858 TS |
429 | dev_err(cs->dev, "bulk transfer failed (status %d)\n", |
430 | -urb->status); | |
917f5085 | 431 | /* That's all we can do. Communication problems |
784d5858 | 432 | are handled by timeouts or network protocols. */ |
07dc1f9f | 433 | |
69049cc8 TS |
434 | spin_lock_irqsave(&cs->lock, flags); |
435 | if (!cs->connected) { | |
436 | err("%s: not connected", __func__); | |
437 | } else { | |
438 | atomic_set(&cs->hw.usb->busy, 0); | |
439 | tasklet_schedule(&cs->write_tasklet); | |
440 | } | |
441 | spin_unlock_irqrestore(&cs->lock, flags); | |
07dc1f9f HL |
442 | } |
443 | ||
444 | static int send_cb(struct cardstate *cs, struct cmdbuf_t *cb) | |
445 | { | |
446 | struct cmdbuf_t *tcb; | |
447 | unsigned long flags; | |
448 | int count; | |
449 | int status = -ENOENT; // FIXME | |
450 | struct usb_cardstate *ucs = cs->hw.usb; | |
451 | ||
452 | do { | |
453 | if (!cb->len) { | |
454 | tcb = cb; | |
455 | ||
456 | spin_lock_irqsave(&cs->cmdlock, flags); | |
457 | cs->cmdbytes -= cs->curlen; | |
784d5858 TS |
458 | gig_dbg(DEBUG_OUTPUT, "send_cb: sent %u bytes, %u left", |
459 | cs->curlen, cs->cmdbytes); | |
07dc1f9f HL |
460 | cs->cmdbuf = cb = cb->next; |
461 | if (cb) { | |
462 | cb->prev = NULL; | |
463 | cs->curlen = cb->len; | |
464 | } else { | |
465 | cs->lastcmdbuf = NULL; | |
466 | cs->curlen = 0; | |
467 | } | |
468 | spin_unlock_irqrestore(&cs->cmdlock, flags); | |
469 | ||
470 | if (tcb->wake_tasklet) | |
471 | tasklet_schedule(tcb->wake_tasklet); | |
472 | kfree(tcb); | |
473 | } | |
474 | if (cb) { | |
475 | count = min(cb->len, ucs->bulk_out_size); | |
69049cc8 TS |
476 | gig_dbg(DEBUG_OUTPUT, "send_cb: send %d bytes", count); |
477 | ||
07dc1f9f | 478 | usb_fill_bulk_urb(ucs->bulk_out_urb, ucs->udev, |
784d5858 TS |
479 | usb_sndbulkpipe(ucs->udev, |
480 | ucs->bulk_out_endpointAddr & 0x0f), | |
481 | cb->buf + cb->offset, count, | |
482 | gigaset_write_bulk_callback, cs); | |
07dc1f9f HL |
483 | |
484 | cb->offset += count; | |
485 | cb->len -= count; | |
486 | atomic_set(&ucs->busy, 1); | |
07dc1f9f | 487 | |
69049cc8 | 488 | spin_lock_irqsave(&cs->lock, flags); |
54e6ecb2 | 489 | status = cs->connected ? usb_submit_urb(ucs->bulk_out_urb, GFP_ATOMIC) : -ENODEV; |
69049cc8 TS |
490 | spin_unlock_irqrestore(&cs->lock, flags); |
491 | ||
07dc1f9f HL |
492 | if (status) { |
493 | atomic_set(&ucs->busy, 0); | |
69049cc8 TS |
494 | err("could not submit urb (error %d)\n", |
495 | -status); | |
917f5085 TS |
496 | cb->len = 0; /* skip urb => remove cb+wakeup |
497 | in next loop cycle */ | |
07dc1f9f HL |
498 | } |
499 | } | |
917f5085 | 500 | } while (cb && status); /* next command on error */ |
07dc1f9f HL |
501 | |
502 | return status; | |
503 | } | |
504 | ||
917f5085 | 505 | /* Send command to device. */ |
07dc1f9f | 506 | static int gigaset_write_cmd(struct cardstate *cs, const unsigned char *buf, |
784d5858 | 507 | int len, struct tasklet_struct *wake_tasklet) |
07dc1f9f HL |
508 | { |
509 | struct cmdbuf_t *cb; | |
510 | unsigned long flags; | |
511 | ||
512 | gigaset_dbg_buffer(atomic_read(&cs->mstate) != MS_LOCKED ? | |
784d5858 | 513 | DEBUG_TRANSCMD : DEBUG_LOCKCMD, |
01371500 | 514 | "CMD Transmit", len, buf); |
07dc1f9f | 515 | |
07dc1f9f HL |
516 | if (len <= 0) |
517 | return 0; | |
518 | ||
519 | if (!(cb = kmalloc(sizeof(struct cmdbuf_t) + len, GFP_ATOMIC))) { | |
784d5858 | 520 | dev_err(cs->dev, "%s: out of memory\n", __func__); |
07dc1f9f HL |
521 | return -ENOMEM; |
522 | } | |
523 | ||
524 | memcpy(cb->buf, buf, len); | |
525 | cb->len = len; | |
526 | cb->offset = 0; | |
527 | cb->next = NULL; | |
528 | cb->wake_tasklet = wake_tasklet; | |
529 | ||
530 | spin_lock_irqsave(&cs->cmdlock, flags); | |
531 | cb->prev = cs->lastcmdbuf; | |
532 | if (cs->lastcmdbuf) | |
533 | cs->lastcmdbuf->next = cb; | |
534 | else { | |
535 | cs->cmdbuf = cb; | |
536 | cs->curlen = len; | |
537 | } | |
538 | cs->cmdbytes += len; | |
539 | cs->lastcmdbuf = cb; | |
540 | spin_unlock_irqrestore(&cs->cmdlock, flags); | |
541 | ||
69049cc8 TS |
542 | spin_lock_irqsave(&cs->lock, flags); |
543 | if (cs->connected) | |
544 | tasklet_schedule(&cs->write_tasklet); | |
545 | spin_unlock_irqrestore(&cs->lock, flags); | |
07dc1f9f HL |
546 | return len; |
547 | } | |
548 | ||
549 | static int gigaset_write_room(struct cardstate *cs) | |
550 | { | |
551 | unsigned long flags; | |
552 | unsigned bytes; | |
553 | ||
554 | spin_lock_irqsave(&cs->cmdlock, flags); | |
555 | bytes = cs->cmdbytes; | |
556 | spin_unlock_irqrestore(&cs->cmdlock, flags); | |
557 | ||
558 | return bytes < IF_WRITEBUF ? IF_WRITEBUF - bytes : 0; | |
559 | } | |
560 | ||
561 | static int gigaset_chars_in_buffer(struct cardstate *cs) | |
562 | { | |
563 | return cs->cmdbytes; | |
564 | } | |
565 | ||
566 | static int gigaset_brkchars(struct cardstate *cs, const unsigned char buf[6]) | |
567 | { | |
568 | #ifdef CONFIG_GIGASET_UNDOCREQ | |
784d5858 TS |
569 | struct usb_device *udev = cs->hw.usb->udev; |
570 | ||
01371500 | 571 | gigaset_dbg_buffer(DEBUG_USBREQ, "brkchars", 6, buf); |
07dc1f9f | 572 | memcpy(cs->hw.usb->bchars, buf, 6); |
784d5858 TS |
573 | return usb_control_msg(udev, usb_sndctrlpipe(udev, 0), 0x19, 0x41, |
574 | 0, 0, &buf, 6, 2000); | |
07dc1f9f HL |
575 | #else |
576 | return -EINVAL; | |
577 | #endif | |
578 | } | |
579 | ||
580 | static int gigaset_freebcshw(struct bc_state *bcs) | |
581 | { | |
582 | if (!bcs->hw.usb) | |
583 | return 0; | |
584 | //FIXME | |
585 | kfree(bcs->hw.usb); | |
586 | return 1; | |
587 | } | |
588 | ||
589 | /* Initialize the b-channel structure */ | |
590 | static int gigaset_initbcshw(struct bc_state *bcs) | |
591 | { | |
592 | bcs->hw.usb = kmalloc(sizeof(struct usb_bc_state), GFP_KERNEL); | |
593 | if (!bcs->hw.usb) | |
594 | return 0; | |
595 | ||
07dc1f9f HL |
596 | return 1; |
597 | } | |
598 | ||
599 | static void gigaset_reinitbcshw(struct bc_state *bcs) | |
600 | { | |
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); | |
615 | if (!ucs) | |
616 | return 0; | |
617 | ||
618 | ucs->bchars[0] = 0; | |
619 | ucs->bchars[1] = 0; | |
620 | ucs->bchars[2] = 0; | |
621 | ucs->bchars[3] = 0; | |
622 | ucs->bchars[4] = 0x11; | |
623 | ucs->bchars[5] = 0x13; | |
624 | ucs->bulk_out_buffer = NULL; | |
625 | ucs->bulk_out_urb = NULL; | |
626 | //ucs->urb_cmd_out = NULL; | |
627 | ucs->read_urb = NULL; | |
628 | tasklet_init(&cs->write_tasklet, | |
784d5858 | 629 | &gigaset_modem_fill, (unsigned long) cs); |
07dc1f9f HL |
630 | |
631 | return 1; | |
632 | } | |
633 | ||
917f5085 | 634 | /* Send data from current skb to the device. */ |
07dc1f9f HL |
635 | static int write_modem(struct cardstate *cs) |
636 | { | |
d48c7784 | 637 | int ret = 0; |
07dc1f9f HL |
638 | int count; |
639 | struct bc_state *bcs = &cs->bcs[0]; /* only one channel */ | |
640 | struct usb_cardstate *ucs = cs->hw.usb; | |
69049cc8 | 641 | unsigned long flags; |
07dc1f9f | 642 | |
784d5858 | 643 | gig_dbg(DEBUG_WRITE, "len: %d...", bcs->tx_skb->len); |
07dc1f9f | 644 | |
07dc1f9f HL |
645 | if (!bcs->tx_skb->len) { |
646 | dev_kfree_skb_any(bcs->tx_skb); | |
647 | bcs->tx_skb = NULL; | |
648 | return -EINVAL; | |
649 | } | |
650 | ||
651 | /* Copy data to bulk out buffer and // FIXME copying not necessary | |
652 | * transmit data | |
653 | */ | |
654 | count = min(bcs->tx_skb->len, (unsigned) ucs->bulk_out_size); | |
655 | memcpy(ucs->bulk_out_buffer, bcs->tx_skb->data, count); | |
656 | skb_pull(bcs->tx_skb, count); | |
07dc1f9f | 657 | atomic_set(&ucs->busy, 1); |
784d5858 | 658 | gig_dbg(DEBUG_OUTPUT, "write_modem: send %d bytes", count); |
07dc1f9f | 659 | |
69049cc8 TS |
660 | spin_lock_irqsave(&cs->lock, flags); |
661 | if (cs->connected) { | |
662 | usb_fill_bulk_urb(ucs->bulk_out_urb, ucs->udev, | |
663 | usb_sndbulkpipe(ucs->udev, | |
664 | ucs->bulk_out_endpointAddr & 0x0f), | |
665 | ucs->bulk_out_buffer, count, | |
666 | gigaset_write_bulk_callback, cs); | |
54e6ecb2 | 667 | ret = usb_submit_urb(ucs->bulk_out_urb, GFP_ATOMIC); |
69049cc8 TS |
668 | } else { |
669 | ret = -ENODEV; | |
670 | } | |
671 | spin_unlock_irqrestore(&cs->lock, flags); | |
672 | ||
07dc1f9f | 673 | if (ret) { |
69049cc8 | 674 | err("could not submit urb (error %d)\n", -ret); |
07dc1f9f HL |
675 | atomic_set(&ucs->busy, 0); |
676 | } | |
69049cc8 | 677 | |
07dc1f9f HL |
678 | if (!bcs->tx_skb->len) { |
679 | /* skb sent completely */ | |
680 | gigaset_skb_sent(bcs, bcs->tx_skb); //FIXME also, when ret<0? | |
681 | ||
784d5858 TS |
682 | gig_dbg(DEBUG_INTR, "kfree skb (Adr: %lx)!", |
683 | (unsigned long) bcs->tx_skb); | |
07dc1f9f HL |
684 | dev_kfree_skb_any(bcs->tx_skb); |
685 | bcs->tx_skb = NULL; | |
686 | } | |
687 | ||
688 | return ret; | |
07dc1f9f HL |
689 | } |
690 | ||
691 | static int gigaset_probe(struct usb_interface *interface, | |
784d5858 | 692 | const struct usb_device_id *id) |
07dc1f9f HL |
693 | { |
694 | int retval; | |
695 | struct usb_device *udev = interface_to_usbdev(interface); | |
696 | unsigned int ifnum; | |
697 | struct usb_host_interface *hostif; | |
698 | struct cardstate *cs = NULL; | |
699 | struct usb_cardstate *ucs = NULL; | |
07dc1f9f | 700 | struct usb_endpoint_descriptor *endpoint; |
07dc1f9f HL |
701 | int buffer_size; |
702 | int alt; | |
07dc1f9f | 703 | |
784d5858 TS |
704 | gig_dbg(DEBUG_ANY, |
705 | "%s: Check if device matches .. (Vendor: 0x%x, Product: 0x%x)", | |
706 | __func__, le16_to_cpu(udev->descriptor.idVendor), | |
707 | le16_to_cpu(udev->descriptor.idProduct)); | |
07dc1f9f HL |
708 | |
709 | retval = -ENODEV; //FIXME | |
710 | ||
711 | /* See if the device offered us matches what we can accept */ | |
bfe2e934 AD |
712 | if ((le16_to_cpu(udev->descriptor.idVendor) != USB_M105_VENDOR_ID) || |
713 | (le16_to_cpu(udev->descriptor.idProduct) != USB_M105_PRODUCT_ID)) | |
07dc1f9f HL |
714 | return -ENODEV; |
715 | ||
716 | /* this starts to become ascii art... */ | |
717 | hostif = interface->cur_altsetting; | |
718 | alt = hostif->desc.bAlternateSetting; | |
719 | ifnum = hostif->desc.bInterfaceNumber; // FIXME ? | |
720 | ||
721 | if (alt != 0 || ifnum != 0) { | |
784d5858 | 722 | dev_warn(&udev->dev, "ifnum %d, alt %d\n", ifnum, alt); |
07dc1f9f HL |
723 | return -ENODEV; |
724 | } | |
725 | ||
726 | /* Reject application specific intefaces | |
727 | * | |
728 | */ | |
729 | if (hostif->desc.bInterfaceClass != 255) { | |
784d5858 TS |
730 | dev_info(&udev->dev, |
731 | "%s: Device matched but iface_desc[%d]->bInterfaceClass==%d!\n", | |
732 | __func__, ifnum, hostif->desc.bInterfaceClass); | |
07dc1f9f HL |
733 | return -ENODEV; |
734 | } | |
735 | ||
784d5858 | 736 | dev_info(&udev->dev, "%s: Device matched ... !\n", __func__); |
07dc1f9f HL |
737 | |
738 | cs = gigaset_getunassignedcs(driver); | |
739 | if (!cs) { | |
784d5858 | 740 | dev_warn(&udev->dev, "no free cardstate\n"); |
07dc1f9f HL |
741 | return -ENODEV; |
742 | } | |
743 | ucs = cs->hw.usb; | |
744 | ||
784d5858 TS |
745 | /* save off device structure ptrs for later use */ |
746 | usb_get_dev(udev); | |
747 | ucs->udev = udev; | |
748 | ucs->interface = interface; | |
b1d47464 TS |
749 | cs->dev = &interface->dev; |
750 | ||
751 | /* save address of controller structure */ | |
752 | usb_set_intfdata(interface, cs); // dev_set_drvdata(&interface->dev, cs); | |
784d5858 | 753 | |
07dc1f9f HL |
754 | endpoint = &hostif->endpoint[0].desc; |
755 | ||
756 | buffer_size = le16_to_cpu(endpoint->wMaxPacketSize); | |
757 | ucs->bulk_out_size = buffer_size; | |
758 | ucs->bulk_out_endpointAddr = endpoint->bEndpointAddress; | |
759 | ucs->bulk_out_buffer = kmalloc(buffer_size, GFP_KERNEL); | |
760 | if (!ucs->bulk_out_buffer) { | |
784d5858 | 761 | dev_err(cs->dev, "Couldn't allocate bulk_out_buffer\n"); |
07dc1f9f HL |
762 | retval = -ENOMEM; |
763 | goto error; | |
764 | } | |
765 | ||
e94b1766 | 766 | ucs->bulk_out_urb = usb_alloc_urb(0, GFP_KERNEL); |
07dc1f9f | 767 | if (!ucs->bulk_out_urb) { |
784d5858 | 768 | dev_err(cs->dev, "Couldn't allocate bulk_out_urb\n"); |
07dc1f9f HL |
769 | retval = -ENOMEM; |
770 | goto error; | |
771 | } | |
772 | ||
773 | endpoint = &hostif->endpoint[1].desc; | |
774 | ||
775 | atomic_set(&ucs->busy, 0); | |
07dc1f9f | 776 | |
e94b1766 | 777 | ucs->read_urb = usb_alloc_urb(0, GFP_KERNEL); |
07dc1f9f | 778 | if (!ucs->read_urb) { |
784d5858 | 779 | dev_err(cs->dev, "No free urbs available\n"); |
07dc1f9f HL |
780 | retval = -ENOMEM; |
781 | goto error; | |
782 | } | |
783 | buffer_size = le16_to_cpu(endpoint->wMaxPacketSize); | |
784 | ucs->rcvbuf_size = buffer_size; | |
785 | ucs->int_in_endpointAddr = endpoint->bEndpointAddress; | |
786 | cs->inbuf[0].rcvbuf = kmalloc(buffer_size, GFP_KERNEL); | |
787 | if (!cs->inbuf[0].rcvbuf) { | |
784d5858 | 788 | dev_err(cs->dev, "Couldn't allocate rcvbuf\n"); |
07dc1f9f HL |
789 | retval = -ENOMEM; |
790 | goto error; | |
791 | } | |
792 | /* Fill the interrupt urb and send it to the core */ | |
793 | usb_fill_int_urb(ucs->read_urb, udev, | |
784d5858 TS |
794 | usb_rcvintpipe(udev, |
795 | endpoint->bEndpointAddress & 0x0f), | |
796 | cs->inbuf[0].rcvbuf, buffer_size, | |
797 | gigaset_read_int_callback, | |
798 | cs->inbuf + 0, endpoint->bInterval); | |
07dc1f9f | 799 | |
e94b1766 | 800 | retval = usb_submit_urb(ucs->read_urb, GFP_KERNEL); |
07dc1f9f | 801 | if (retval) { |
784d5858 | 802 | dev_err(cs->dev, "Could not submit URB (error %d)\n", -retval); |
07dc1f9f HL |
803 | goto error; |
804 | } | |
805 | ||
806 | /* tell common part that the device is ready */ | |
807 | if (startmode == SM_LOCKED) | |
808 | atomic_set(&cs->mstate, MS_LOCKED); | |
b1d47464 | 809 | |
07dc1f9f HL |
810 | if (!gigaset_start(cs)) { |
811 | tasklet_kill(&cs->write_tasklet); | |
812 | retval = -ENODEV; //FIXME | |
813 | goto error; | |
814 | } | |
07dc1f9f HL |
815 | return 0; |
816 | ||
817 | error: | |
ead54fcd | 818 | usb_kill_urb(ucs->read_urb); |
07dc1f9f | 819 | kfree(ucs->bulk_out_buffer); |
ead54fcd | 820 | usb_free_urb(ucs->bulk_out_urb); |
07dc1f9f | 821 | kfree(cs->inbuf[0].rcvbuf); |
ead54fcd | 822 | usb_free_urb(ucs->read_urb); |
b1d47464 | 823 | usb_set_intfdata(interface, NULL); |
07dc1f9f HL |
824 | ucs->read_urb = ucs->bulk_out_urb = NULL; |
825 | cs->inbuf[0].rcvbuf = ucs->bulk_out_buffer = NULL; | |
784d5858 TS |
826 | usb_put_dev(ucs->udev); |
827 | ucs->udev = NULL; | |
828 | ucs->interface = NULL; | |
07dc1f9f HL |
829 | gigaset_unassign(cs); |
830 | return retval; | |
831 | } | |
832 | ||
07dc1f9f HL |
833 | static void gigaset_disconnect(struct usb_interface *interface) |
834 | { | |
835 | struct cardstate *cs; | |
836 | struct usb_cardstate *ucs; | |
837 | ||
838 | cs = usb_get_intfdata(interface); | |
07dc1f9f HL |
839 | ucs = cs->hw.usb; |
840 | usb_kill_urb(ucs->read_urb); | |
07dc1f9f HL |
841 | |
842 | gigaset_stop(cs); | |
843 | ||
b1d47464 | 844 | usb_set_intfdata(interface, NULL); |
07dc1f9f HL |
845 | tasklet_kill(&cs->write_tasklet); |
846 | ||
784d5858 | 847 | usb_kill_urb(ucs->bulk_out_urb); /* FIXME: only if active? */ |
07dc1f9f HL |
848 | |
849 | kfree(ucs->bulk_out_buffer); | |
ead54fcd | 850 | usb_free_urb(ucs->bulk_out_urb); |
07dc1f9f | 851 | kfree(cs->inbuf[0].rcvbuf); |
ead54fcd | 852 | usb_free_urb(ucs->read_urb); |
917f5085 | 853 | ucs->read_urb = ucs->bulk_out_urb = NULL; |
07dc1f9f HL |
854 | cs->inbuf[0].rcvbuf = ucs->bulk_out_buffer = NULL; |
855 | ||
b1d47464 TS |
856 | usb_put_dev(ucs->udev); |
857 | ucs->interface = NULL; | |
858 | ucs->udev = NULL; | |
859 | cs->dev = NULL; | |
07dc1f9f HL |
860 | gigaset_unassign(cs); |
861 | } | |
862 | ||
863 | static struct gigaset_ops ops = { | |
864 | gigaset_write_cmd, | |
865 | gigaset_write_room, | |
866 | gigaset_chars_in_buffer, | |
867 | gigaset_brkchars, | |
868 | gigaset_init_bchannel, | |
869 | gigaset_close_bchannel, | |
870 | gigaset_initbcshw, | |
871 | gigaset_freebcshw, | |
872 | gigaset_reinitbcshw, | |
873 | gigaset_initcshw, | |
874 | gigaset_freecshw, | |
875 | gigaset_set_modem_ctrl, | |
876 | gigaset_baud_rate, | |
877 | gigaset_set_line_ctrl, | |
878 | gigaset_m10x_send_skb, | |
879 | gigaset_m10x_input, | |
880 | }; | |
881 | ||
882 | /** | |
883 | * usb_gigaset_init | |
884 | * This function is called while kernel-module is loaded | |
885 | */ | |
886 | static int __init usb_gigaset_init(void) | |
887 | { | |
888 | int result; | |
889 | ||
890 | /* allocate memory for our driver state and intialize it */ | |
891 | if ((driver = gigaset_initdriver(GIGASET_MINOR, GIGASET_MINORS, | |
784d5858 | 892 | GIGASET_MODULENAME, GIGASET_DEVNAME, |
f4eaa370 | 893 | &ops, THIS_MODULE)) == NULL) |
07dc1f9f HL |
894 | goto error; |
895 | ||
896 | /* allocate memory for our device state and intialize it */ | |
897 | cardstate = gigaset_initcs(driver, 1, 1, 0, cidmode, GIGASET_MODULENAME); | |
898 | if (!cardstate) | |
899 | goto error; | |
900 | ||
901 | /* register this driver with the USB subsystem */ | |
902 | result = usb_register(&gigaset_usb_driver); | |
903 | if (result < 0) { | |
904 | err("usb_gigaset: usb_register failed (error %d)", | |
905 | -result); | |
906 | goto error; | |
907 | } | |
908 | ||
909 | info(DRIVER_AUTHOR); | |
910 | info(DRIVER_DESC); | |
911 | return 0; | |
912 | ||
913 | error: if (cardstate) | |
914 | gigaset_freecs(cardstate); | |
915 | cardstate = NULL; | |
916 | if (driver) | |
917 | gigaset_freedriver(driver); | |
918 | driver = NULL; | |
919 | return -1; | |
920 | } | |
921 | ||
922 | ||
923 | /** | |
924 | * usb_gigaset_exit | |
925 | * This function is called while unloading the kernel-module | |
926 | */ | |
927 | static void __exit usb_gigaset_exit(void) | |
928 | { | |
929 | gigaset_blockdriver(driver); /* => probe will fail | |
784d5858 TS |
930 | * => no gigaset_start any more |
931 | */ | |
07dc1f9f HL |
932 | |
933 | gigaset_shutdown(cardstate); | |
934 | /* from now on, no isdn callback should be possible */ | |
935 | ||
936 | /* deregister this driver with the USB subsystem */ | |
937 | usb_deregister(&gigaset_usb_driver); | |
938 | /* this will call the disconnect-callback */ | |
939 | /* from now on, no disconnect/probe callback should be running */ | |
940 | ||
941 | gigaset_freecs(cardstate); | |
942 | cardstate = NULL; | |
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"); |