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Commit | Line | Data |
---|---|---|
a6c2ba28 | 1 | /* |
f7abcd38 | 2 | em28xx-video.c - driver for Empia EM2800/EM2820/2840 USB video capture devices |
a6c2ba28 | 3 | |
f7abcd38 MCC |
4 | Copyright (C) 2005 Ludovico Cavedon <cavedon@sssup.it> |
5 | Markus Rechberger <mrechberger@gmail.com> | |
2e7c6dc3 | 6 | Mauro Carvalho Chehab <mchehab@infradead.org> |
f7abcd38 | 7 | Sascha Sommer <saschasommer@freenet.de> |
a6c2ba28 | 8 | |
439090d7 MCC |
9 | Some parts based on SN9C10x PC Camera Controllers GPL driver made |
10 | by Luca Risolia <luca.risolia@studio.unibo.it> | |
11 | ||
a6c2ba28 | 12 | This program is free software; you can redistribute it and/or modify |
13 | it under the terms of the GNU General Public License as published by | |
14 | the Free Software Foundation; either version 2 of the License, or | |
15 | (at your option) any later version. | |
16 | ||
17 | This program is distributed in the hope that it will be useful, | |
18 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
19 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
20 | GNU General Public License for more details. | |
21 | ||
22 | You should have received a copy of the GNU General Public License | |
23 | along with this program; if not, write to the Free Software | |
24 | Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. | |
25 | */ | |
26 | ||
27 | #include <linux/init.h> | |
28 | #include <linux/list.h> | |
29 | #include <linux/module.h> | |
30 | #include <linux/kernel.h> | |
e5589bef | 31 | #include <linux/bitmap.h> |
a6c2ba28 | 32 | #include <linux/usb.h> |
a6c2ba28 | 33 | #include <linux/i2c.h> |
b296fc60 | 34 | #include <linux/version.h> |
6d35c8f6 | 35 | #include <linux/mm.h> |
1e4baed3 | 36 | #include <linux/mutex.h> |
a6c2ba28 | 37 | |
f7abcd38 | 38 | #include "em28xx.h" |
c0477ad9 | 39 | #include <media/v4l2-common.h> |
2474ed44 | 40 | #include <media/msp3400.h> |
ed086314 | 41 | #include <media/tuner.h> |
a6c2ba28 | 42 | |
f7abcd38 MCC |
43 | #define DRIVER_AUTHOR "Ludovico Cavedon <cavedon@sssup.it>, " \ |
44 | "Markus Rechberger <mrechberger@gmail.com>, " \ | |
2e7c6dc3 | 45 | "Mauro Carvalho Chehab <mchehab@infradead.org>, " \ |
f7abcd38 | 46 | "Sascha Sommer <saschasommer@freenet.de>" |
a6c2ba28 | 47 | |
f7abcd38 MCC |
48 | #define DRIVER_NAME "em28xx" |
49 | #define DRIVER_DESC "Empia em28xx based USB video device driver" | |
195a4ef6 | 50 | #define EM28XX_VERSION_CODE KERNEL_VERSION(0, 1, 0) |
a6c2ba28 | 51 | |
3acf2809 | 52 | #define em28xx_videodbg(fmt, arg...) do {\ |
4ac97914 MCC |
53 | if (video_debug) \ |
54 | printk(KERN_INFO "%s %s :"fmt, \ | |
d80e134d | 55 | dev->name, __func__ , ##arg); } while (0) |
a6c2ba28 | 56 | |
ad0ebb96 | 57 | static unsigned int isoc_debug; |
f245e549 MCC |
58 | module_param(isoc_debug, int, 0644); |
59 | MODULE_PARM_DESC(isoc_debug, "enable debug messages [isoc transfers]"); | |
ad0ebb96 MCC |
60 | |
61 | #define em28xx_isocdbg(fmt, arg...) do {\ | |
62 | if (isoc_debug) \ | |
63 | printk(KERN_INFO "%s %s :"fmt, \ | |
f245e549 | 64 | dev->name, __func__ , ##arg); } while (0) |
ad0ebb96 | 65 | |
a6c2ba28 | 66 | MODULE_AUTHOR(DRIVER_AUTHOR); |
67 | MODULE_DESCRIPTION(DRIVER_DESC); | |
68 | MODULE_LICENSE("GPL"); | |
69 | ||
3acf2809 | 70 | static LIST_HEAD(em28xx_devlist); |
9c75541f | 71 | |
9d4d9c05 | 72 | static unsigned int card[] = {[0 ... (EM28XX_MAXBOARDS - 1)] = UNSET }; |
e5589bef | 73 | static unsigned int video_nr[] = {[0 ... (EM28XX_MAXBOARDS - 1)] = UNSET }; |
0be43754 MCC |
74 | static unsigned int vbi_nr[] = {[0 ... (EM28XX_MAXBOARDS - 1)] = UNSET }; |
75 | static unsigned int radio_nr[] = {[0 ... (EM28XX_MAXBOARDS - 1)] = UNSET }; | |
76 | ||
596d92d5 | 77 | module_param_array(card, int, NULL, 0444); |
e5589bef MCC |
78 | module_param_array(video_nr, int, NULL, 0444); |
79 | module_param_array(vbi_nr, int, NULL, 0444); | |
0be43754 MCC |
80 | module_param_array(radio_nr, int, NULL, 0444); |
81 | MODULE_PARM_DESC(card, "card type"); | |
82 | MODULE_PARM_DESC(video_nr, "video device numbers"); | |
83 | MODULE_PARM_DESC(vbi_nr, "vbi device numbers"); | |
84 | MODULE_PARM_DESC(radio_nr, "radio device numbers"); | |
596d92d5 | 85 | |
ff699e6b | 86 | static unsigned int video_debug; |
a6c2ba28 | 87 | module_param(video_debug,int,0644); |
88 | MODULE_PARM_DESC(video_debug,"enable debug messages [video]"); | |
89 | ||
e5589bef MCC |
90 | /* Bitmask marking allocated devices from 0 to EM28XX_MAXBOARDS */ |
91 | static unsigned long em28xx_devused; | |
92 | ||
a6c2ba28 | 93 | /* supported controls */ |
c0477ad9 | 94 | /* Common to all boards */ |
3acf2809 | 95 | static struct v4l2_queryctrl em28xx_qctrl[] = { |
c0477ad9 MCC |
96 | { |
97 | .id = V4L2_CID_AUDIO_VOLUME, | |
98 | .type = V4L2_CTRL_TYPE_INTEGER, | |
99 | .name = "Volume", | |
100 | .minimum = 0x0, | |
101 | .maximum = 0x1f, | |
102 | .step = 0x1, | |
103 | .default_value = 0x1f, | |
104 | .flags = 0, | |
105 | },{ | |
106 | .id = V4L2_CID_AUDIO_MUTE, | |
107 | .type = V4L2_CTRL_TYPE_BOOLEAN, | |
108 | .name = "Mute", | |
109 | .minimum = 0, | |
110 | .maximum = 1, | |
111 | .step = 1, | |
112 | .default_value = 1, | |
113 | .flags = 0, | |
114 | } | |
115 | }; | |
116 | ||
3acf2809 | 117 | static struct usb_driver em28xx_usb_driver; |
a6c2ba28 | 118 | |
ad0ebb96 MCC |
119 | /* ------------------------------------------------------------------ |
120 | DMA and thread functions | |
121 | ------------------------------------------------------------------*/ | |
122 | ||
123 | /* | |
124 | * Announces that a buffer were filled and request the next | |
125 | */ | |
f245e549 | 126 | static inline void buffer_filled(struct em28xx *dev, |
ad0ebb96 MCC |
127 | struct em28xx_dmaqueue *dma_q, |
128 | struct em28xx_buffer *buf) | |
129 | { | |
ad0ebb96 MCC |
130 | /* Advice that buffer was filled */ |
131 | em28xx_isocdbg("[%p/%d] wakeup\n", buf, buf->vb.i); | |
132 | buf->vb.state = VIDEOBUF_DONE; | |
133 | buf->vb.field_count++; | |
134 | do_gettimeofday(&buf->vb.ts); | |
135 | ||
cb784724 MCC |
136 | dev->isoc_ctl.buf = NULL; |
137 | ||
ad0ebb96 MCC |
138 | list_del(&buf->vb.queue); |
139 | wake_up(&buf->vb.done); | |
140 | } | |
141 | ||
142 | /* | |
143 | * Identify the buffer header type and properly handles | |
144 | */ | |
145 | static void em28xx_copy_video(struct em28xx *dev, | |
146 | struct em28xx_dmaqueue *dma_q, | |
147 | struct em28xx_buffer *buf, | |
148 | unsigned char *p, | |
149 | unsigned char *outp, unsigned long len) | |
150 | { | |
151 | void *fieldstart, *startwrite, *startread; | |
f245e549 | 152 | int linesdone, currlinedone, offset, lencopy, remain; |
44dc733c | 153 | int bytesperline = dev->width << 1; |
ad0ebb96 MCC |
154 | |
155 | if (dma_q->pos + len > buf->vb.size) | |
156 | len = buf->vb.size - dma_q->pos; | |
157 | ||
d7aa8020 | 158 | if (p[0] != 0x88 && p[0] != 0x22) { |
ad0ebb96 MCC |
159 | em28xx_isocdbg("frame is not complete\n"); |
160 | len += 4; | |
161 | } else | |
f245e549 | 162 | p += 4; |
ad0ebb96 MCC |
163 | |
164 | startread = p; | |
165 | remain = len; | |
166 | ||
167 | /* Interlaces frame */ | |
168 | if (buf->top_field) | |
169 | fieldstart = outp; | |
170 | else | |
44dc733c | 171 | fieldstart = outp + bytesperline; |
ad0ebb96 | 172 | |
44dc733c MCC |
173 | linesdone = dma_q->pos / bytesperline; |
174 | currlinedone = dma_q->pos % bytesperline; | |
175 | offset = linesdone * bytesperline * 2 + currlinedone; | |
ad0ebb96 | 176 | startwrite = fieldstart + offset; |
44dc733c | 177 | lencopy = bytesperline - currlinedone; |
ad0ebb96 MCC |
178 | lencopy = lencopy > remain ? remain : lencopy; |
179 | ||
f245e549 | 180 | if ((char *)startwrite + lencopy > (char *)outp + buf->vb.size) { |
ea8df7e0 | 181 | em28xx_isocdbg("Overflow of %zi bytes past buffer end (1)\n", |
f245e549 MCC |
182 | ((char *)startwrite + lencopy) - |
183 | ((char *)outp + buf->vb.size)); | |
184 | lencopy = remain = (char *)outp + buf->vb.size - (char *)startwrite; | |
d7aa8020 | 185 | } |
e0fadfd3 AT |
186 | if (lencopy <= 0) |
187 | return; | |
d7aa8020 | 188 | memcpy(startwrite, startread, lencopy); |
ad0ebb96 MCC |
189 | |
190 | remain -= lencopy; | |
191 | ||
192 | while (remain > 0) { | |
44dc733c | 193 | startwrite += lencopy + bytesperline; |
ad0ebb96 | 194 | startread += lencopy; |
44dc733c | 195 | if (bytesperline > remain) |
ad0ebb96 MCC |
196 | lencopy = remain; |
197 | else | |
44dc733c | 198 | lencopy = bytesperline; |
ad0ebb96 | 199 | |
f245e549 | 200 | if ((char *)startwrite + lencopy > (char *)outp + buf->vb.size) { |
ea8df7e0 | 201 | em28xx_isocdbg("Overflow of %zi bytes past buffer end (2)\n", |
f245e549 MCC |
202 | ((char *)startwrite + lencopy) - |
203 | ((char *)outp + buf->vb.size)); | |
204 | lencopy = remain = (char *)outp + buf->vb.size - | |
205 | (char *)startwrite; | |
d7aa8020 | 206 | } |
f245e549 MCC |
207 | if (lencopy <= 0) |
208 | break; | |
d7aa8020 AT |
209 | |
210 | memcpy(startwrite, startread, lencopy); | |
ad0ebb96 MCC |
211 | |
212 | remain -= lencopy; | |
213 | } | |
214 | ||
215 | dma_q->pos += len; | |
216 | } | |
217 | ||
f245e549 | 218 | static inline void print_err_status(struct em28xx *dev, |
ad0ebb96 MCC |
219 | int packet, int status) |
220 | { | |
221 | char *errmsg = "Unknown"; | |
222 | ||
f245e549 | 223 | switch (status) { |
ad0ebb96 MCC |
224 | case -ENOENT: |
225 | errmsg = "unlinked synchronuously"; | |
226 | break; | |
227 | case -ECONNRESET: | |
228 | errmsg = "unlinked asynchronuously"; | |
229 | break; | |
230 | case -ENOSR: | |
231 | errmsg = "Buffer error (overrun)"; | |
232 | break; | |
233 | case -EPIPE: | |
234 | errmsg = "Stalled (device not responding)"; | |
235 | break; | |
236 | case -EOVERFLOW: | |
237 | errmsg = "Babble (bad cable?)"; | |
238 | break; | |
239 | case -EPROTO: | |
240 | errmsg = "Bit-stuff error (bad cable?)"; | |
241 | break; | |
242 | case -EILSEQ: | |
243 | errmsg = "CRC/Timeout (could be anything)"; | |
244 | break; | |
245 | case -ETIME: | |
246 | errmsg = "Device does not respond"; | |
247 | break; | |
248 | } | |
f245e549 | 249 | if (packet < 0) { |
ad0ebb96 MCC |
250 | em28xx_isocdbg("URB status %d [%s].\n", status, errmsg); |
251 | } else { | |
252 | em28xx_isocdbg("URB packet %d, status %d [%s].\n", | |
253 | packet, status, errmsg); | |
254 | } | |
255 | } | |
256 | ||
257 | /* | |
258 | * video-buf generic routine to get the next available buffer | |
259 | */ | |
3b5fa928 | 260 | static inline void get_next_buf(struct em28xx_dmaqueue *dma_q, |
ad0ebb96 MCC |
261 | struct em28xx_buffer **buf) |
262 | { | |
263 | struct em28xx *dev = container_of(dma_q, struct em28xx, vidq); | |
dbecb44c | 264 | char *outp; |
ad0ebb96 | 265 | |
dbecb44c MCC |
266 | if (list_empty(&dma_q->active)) { |
267 | em28xx_isocdbg("No active queue to serve\n"); | |
dbecb44c MCC |
268 | dev->isoc_ctl.buf = NULL; |
269 | *buf = NULL; | |
3b5fa928 | 270 | return; |
dbecb44c MCC |
271 | } |
272 | ||
dbecb44c MCC |
273 | /* Get the next buffer */ |
274 | *buf = list_entry(dma_q->active.next, struct em28xx_buffer, vb.queue); | |
275 | ||
dbecb44c MCC |
276 | /* Cleans up buffer - Usefull for testing for frame/URB loss */ |
277 | outp = videobuf_to_vmalloc(&(*buf)->vb); | |
278 | memset(outp, 0, (*buf)->vb.size); | |
cb784724 MCC |
279 | |
280 | dev->isoc_ctl.buf = *buf; | |
281 | ||
3b5fa928 | 282 | return; |
ad0ebb96 MCC |
283 | } |
284 | ||
285 | /* | |
286 | * Controls the isoc copy of each urb packet | |
287 | */ | |
d7aa8020 | 288 | static inline int em28xx_isoc_copy(struct urb *urb) |
ad0ebb96 | 289 | { |
d7aa8020 | 290 | struct em28xx_buffer *buf; |
ad0ebb96 MCC |
291 | struct em28xx_dmaqueue *dma_q = urb->context; |
292 | struct em28xx *dev = container_of(dma_q, struct em28xx, vidq); | |
3b5fa928 | 293 | unsigned char *outp = NULL; |
ad0ebb96 | 294 | int i, len = 0, rc = 1; |
d7aa8020 | 295 | unsigned char *p; |
ad0ebb96 MCC |
296 | |
297 | if (!dev) | |
298 | return 0; | |
299 | ||
300 | if ((dev->state & DEV_DISCONNECTED) || (dev->state & DEV_MISCONFIGURED)) | |
301 | return 0; | |
302 | ||
f245e549 MCC |
303 | if (urb->status < 0) { |
304 | print_err_status(dev, -1, urb->status); | |
ad0ebb96 MCC |
305 | if (urb->status == -ENOENT) |
306 | return 0; | |
307 | } | |
308 | ||
3b5fa928 AT |
309 | buf = dev->isoc_ctl.buf; |
310 | if (buf != NULL) | |
311 | outp = videobuf_to_vmalloc(&buf->vb); | |
d7aa8020 | 312 | |
ad0ebb96 MCC |
313 | for (i = 0; i < urb->number_of_packets; i++) { |
314 | int status = urb->iso_frame_desc[i].status; | |
315 | ||
f245e549 MCC |
316 | if (status < 0) { |
317 | print_err_status(dev, i, status); | |
ad0ebb96 MCC |
318 | if (urb->iso_frame_desc[i].status != -EPROTO) |
319 | continue; | |
320 | } | |
321 | ||
f245e549 | 322 | len = urb->iso_frame_desc[i].actual_length - 4; |
ad0ebb96 MCC |
323 | |
324 | if (urb->iso_frame_desc[i].actual_length <= 0) { | |
d7aa8020 | 325 | /* em28xx_isocdbg("packet %d is empty",i); - spammy */ |
ad0ebb96 MCC |
326 | continue; |
327 | } | |
328 | if (urb->iso_frame_desc[i].actual_length > | |
329 | dev->max_pkt_size) { | |
330 | em28xx_isocdbg("packet bigger than packet size"); | |
331 | continue; | |
332 | } | |
333 | ||
334 | p = urb->transfer_buffer + urb->iso_frame_desc[i].offset; | |
ad0ebb96 MCC |
335 | |
336 | /* FIXME: incomplete buffer checks where removed to make | |
337 | logic simpler. Impacts of those changes should be evaluated | |
338 | */ | |
b4916f8c MCC |
339 | if (p[0] == 0x33 && p[1] == 0x95 && p[2] == 0x00) { |
340 | em28xx_isocdbg("VBI HEADER!!!\n"); | |
341 | /* FIXME: Should add vbi copy */ | |
342 | continue; | |
343 | } | |
d7aa8020 | 344 | if (p[0] == 0x22 && p[1] == 0x5a) { |
78bb3949 MCC |
345 | em28xx_isocdbg("Video frame %d, length=%i, %s\n", p[2], |
346 | len, (p[2] & 1)? "odd" : "even"); | |
d7aa8020 | 347 | |
3b5fa928 AT |
348 | if (!(p[2] & 1)) { |
349 | if (buf != NULL) | |
350 | buffer_filled(dev, dma_q, buf); | |
351 | get_next_buf(dma_q, &buf); | |
352 | if (buf == NULL) | |
353 | outp = NULL; | |
354 | else | |
355 | outp = videobuf_to_vmalloc(&buf->vb); | |
356 | } | |
357 | ||
358 | if (buf != NULL) { | |
359 | if (p[2] & 1) | |
360 | buf->top_field = 0; | |
361 | else | |
362 | buf->top_field = 1; | |
e0fadfd3 | 363 | } |
b4916f8c | 364 | |
ad0ebb96 | 365 | dma_q->pos = 0; |
ad0ebb96 | 366 | } |
3b5fa928 AT |
367 | if (buf != NULL) |
368 | em28xx_copy_video(dev, dma_q, buf, p, outp, len); | |
ad0ebb96 MCC |
369 | } |
370 | return rc; | |
371 | } | |
372 | ||
373 | /* ------------------------------------------------------------------ | |
374 | URB control | |
375 | ------------------------------------------------------------------*/ | |
376 | ||
377 | /* | |
378 | * IRQ callback, called by URB callback | |
379 | */ | |
380 | static void em28xx_irq_callback(struct urb *urb) | |
381 | { | |
ad0ebb96 MCC |
382 | struct em28xx_dmaqueue *dma_q = urb->context; |
383 | struct em28xx *dev = container_of(dma_q, struct em28xx, vidq); | |
f245e549 | 384 | int rc, i; |
ad0ebb96 | 385 | |
ad0ebb96 | 386 | /* Copy data from URB */ |
dbecb44c | 387 | spin_lock(&dev->slock); |
f245e549 | 388 | rc = em28xx_isoc_copy(urb); |
dbecb44c | 389 | spin_unlock(&dev->slock); |
ad0ebb96 | 390 | |
ad0ebb96 MCC |
391 | /* Reset urb buffers */ |
392 | for (i = 0; i < urb->number_of_packets; i++) { | |
393 | urb->iso_frame_desc[i].status = 0; | |
394 | urb->iso_frame_desc[i].actual_length = 0; | |
395 | } | |
396 | urb->status = 0; | |
397 | ||
f245e549 MCC |
398 | urb->status = usb_submit_urb(urb, GFP_ATOMIC); |
399 | if (urb->status) { | |
ad0ebb96 MCC |
400 | em28xx_err("urb resubmit failed (error=%i)\n", |
401 | urb->status); | |
402 | } | |
ad0ebb96 MCC |
403 | } |
404 | ||
405 | /* | |
406 | * Stop and Deallocate URBs | |
407 | */ | |
408 | static void em28xx_uninit_isoc(struct em28xx *dev) | |
409 | { | |
410 | struct urb *urb; | |
411 | int i; | |
412 | ||
d7aa8020 AT |
413 | em28xx_isocdbg("em28xx: called em28xx_uninit_isoc\n"); |
414 | ||
f245e549 | 415 | dev->isoc_ctl.nfields = -1; |
ad0ebb96 | 416 | for (i = 0; i < dev->isoc_ctl.num_bufs; i++) { |
f245e549 | 417 | urb = dev->isoc_ctl.urb[i]; |
ad0ebb96 MCC |
418 | if (urb) { |
419 | usb_kill_urb(urb); | |
420 | usb_unlink_urb(urb); | |
421 | if (dev->isoc_ctl.transfer_buffer[i]) { | |
422 | usb_buffer_free(dev->udev, | |
423 | urb->transfer_buffer_length, | |
424 | dev->isoc_ctl.transfer_buffer[i], | |
425 | urb->transfer_dma); | |
426 | } | |
427 | usb_free_urb(urb); | |
428 | dev->isoc_ctl.urb[i] = NULL; | |
429 | } | |
430 | dev->isoc_ctl.transfer_buffer[i] = NULL; | |
431 | } | |
432 | ||
f245e549 MCC |
433 | kfree(dev->isoc_ctl.urb); |
434 | kfree(dev->isoc_ctl.transfer_buffer); | |
435 | dev->isoc_ctl.urb = NULL; | |
436 | dev->isoc_ctl.transfer_buffer = NULL; | |
ad0ebb96 | 437 | |
f245e549 | 438 | dev->isoc_ctl.num_bufs = 0; |
ad0ebb96 | 439 | |
47625da2 | 440 | em28xx_capture_start(dev, 0); |
ad0ebb96 MCC |
441 | } |
442 | ||
ad0ebb96 MCC |
443 | /* |
444 | * Allocate URBs and start IRQ | |
445 | */ | |
446 | static int em28xx_prepare_isoc(struct em28xx *dev, int max_packets, | |
447 | int num_bufs) | |
448 | { | |
449 | struct em28xx_dmaqueue *dma_q = &dev->vidq; | |
450 | int i; | |
451 | int sb_size, pipe; | |
452 | struct urb *urb; | |
453 | int j, k; | |
454 | ||
d7aa8020 AT |
455 | em28xx_isocdbg("em28xx: called em28xx_prepare_isoc\n"); |
456 | ||
ad0ebb96 MCC |
457 | /* De-allocates all pending stuff */ |
458 | em28xx_uninit_isoc(dev); | |
459 | ||
460 | dev->isoc_ctl.num_bufs = num_bufs; | |
461 | ||
d7aa8020 | 462 | dev->isoc_ctl.urb = kzalloc(sizeof(void *)*num_bufs, GFP_KERNEL); |
ad0ebb96 MCC |
463 | if (!dev->isoc_ctl.urb) { |
464 | em28xx_errdev("cannot alloc memory for usb buffers\n"); | |
465 | return -ENOMEM; | |
466 | } | |
467 | ||
d7aa8020 | 468 | dev->isoc_ctl.transfer_buffer = kzalloc(sizeof(void *)*num_bufs, |
ad0ebb96 MCC |
469 | GFP_KERNEL); |
470 | if (!dev->isoc_ctl.urb) { | |
471 | em28xx_errdev("cannot allocate memory for usbtransfer\n"); | |
472 | kfree(dev->isoc_ctl.urb); | |
473 | return -ENOMEM; | |
474 | } | |
475 | ||
476 | dev->isoc_ctl.max_pkt_size = dev->max_pkt_size; | |
cb784724 | 477 | dev->isoc_ctl.buf = NULL; |
ad0ebb96 MCC |
478 | |
479 | sb_size = max_packets * dev->isoc_ctl.max_pkt_size; | |
480 | ||
481 | /* allocate urbs and transfer buffers */ | |
482 | for (i = 0; i < dev->isoc_ctl.num_bufs; i++) { | |
483 | urb = usb_alloc_urb(max_packets, GFP_KERNEL); | |
484 | if (!urb) { | |
485 | em28xx_err("cannot alloc isoc_ctl.urb %i\n", i); | |
486 | em28xx_uninit_isoc(dev); | |
ad0ebb96 MCC |
487 | return -ENOMEM; |
488 | } | |
489 | dev->isoc_ctl.urb[i] = urb; | |
490 | ||
491 | dev->isoc_ctl.transfer_buffer[i] = usb_buffer_alloc(dev->udev, | |
492 | sb_size, GFP_KERNEL, &urb->transfer_dma); | |
493 | if (!dev->isoc_ctl.transfer_buffer[i]) { | |
f245e549 | 494 | em28xx_err("unable to allocate %i bytes for transfer" |
ad0ebb96 MCC |
495 | " buffer %i%s\n", |
496 | sb_size, i, | |
497 | in_interrupt()?" while in int":""); | |
498 | em28xx_uninit_isoc(dev); | |
499 | return -ENOMEM; | |
500 | } | |
501 | memset(dev->isoc_ctl.transfer_buffer[i], 0, sb_size); | |
502 | ||
503 | /* FIXME: this is a hack - should be | |
504 | 'desc.bEndpointAddress & USB_ENDPOINT_NUMBER_MASK' | |
505 | should also be using 'desc.bInterval' | |
506 | */ | |
f245e549 | 507 | pipe = usb_rcvisocpipe(dev->udev, 0x82); |
ad0ebb96 MCC |
508 | usb_fill_int_urb(urb, dev->udev, pipe, |
509 | dev->isoc_ctl.transfer_buffer[i], sb_size, | |
510 | em28xx_irq_callback, dma_q, 1); | |
511 | ||
512 | urb->number_of_packets = max_packets; | |
513 | urb->transfer_flags = URB_ISO_ASAP; | |
514 | ||
515 | k = 0; | |
516 | for (j = 0; j < max_packets; j++) { | |
517 | urb->iso_frame_desc[j].offset = k; | |
518 | urb->iso_frame_desc[j].length = | |
519 | dev->isoc_ctl.max_pkt_size; | |
520 | k += dev->isoc_ctl.max_pkt_size; | |
521 | } | |
522 | } | |
523 | ||
524 | return 0; | |
525 | } | |
526 | ||
f245e549 | 527 | static int em28xx_start_thread(struct em28xx_dmaqueue *dma_q) |
ad0ebb96 MCC |
528 | { |
529 | struct em28xx *dev = container_of(dma_q, struct em28xx, vidq); | |
f245e549 | 530 | int i, rc = 0; |
ad0ebb96 | 531 | |
d7aa8020 | 532 | em28xx_videodbg("Called em28xx_start_thread\n"); |
ad0ebb96 | 533 | |
d7aa8020 | 534 | init_waitqueue_head(&dma_q->wq); |
ad0ebb96 | 535 | |
47625da2 MCC |
536 | em28xx_capture_start(dev, 1); |
537 | ||
ad0ebb96 MCC |
538 | /* submit urbs and enables IRQ */ |
539 | for (i = 0; i < dev->isoc_ctl.num_bufs; i++) { | |
540 | rc = usb_submit_urb(dev->isoc_ctl.urb[i], GFP_ATOMIC); | |
541 | if (rc) { | |
542 | em28xx_err("submit of urb %i failed (error=%i)\n", i, | |
543 | rc); | |
544 | em28xx_uninit_isoc(dev); | |
545 | return rc; | |
546 | } | |
547 | } | |
548 | ||
f245e549 | 549 | if (rc < 0) |
ad0ebb96 MCC |
550 | return rc; |
551 | ||
552 | return 0; | |
553 | } | |
554 | ||
ad0ebb96 MCC |
555 | /* ------------------------------------------------------------------ |
556 | Videobuf operations | |
557 | ------------------------------------------------------------------*/ | |
558 | ||
559 | static int | |
560 | buffer_setup(struct videobuf_queue *vq, unsigned int *count, unsigned int *size) | |
561 | { | |
562 | struct em28xx_fh *fh = vq->priv_data; | |
d2d9fbfd MCC |
563 | struct em28xx *dev = fh->dev; |
564 | struct v4l2_frequency f; | |
ad0ebb96 | 565 | |
d7aa8020 | 566 | *size = 16 * fh->dev->width * fh->dev->height >> 3; |
ad0ebb96 MCC |
567 | if (0 == *count) |
568 | *count = EM28XX_DEF_BUF; | |
569 | ||
f245e549 MCC |
570 | if (*count < EM28XX_MIN_BUF) |
571 | *count = EM28XX_MIN_BUF; | |
ad0ebb96 | 572 | |
d2d9fbfd MCC |
573 | dev->mode = EM28XX_ANALOG_MODE; |
574 | ||
575 | /* Ask tuner to go to analog mode */ | |
576 | memset (&f, 0, sizeof(f)); | |
577 | f.frequency = dev->ctl_freq; | |
578 | ||
579 | em28xx_i2c_call_clients(dev, VIDIOC_S_FREQUENCY, &f); | |
580 | ||
ad0ebb96 MCC |
581 | return 0; |
582 | } | |
583 | ||
3b5fa928 | 584 | /* This is called *without* dev->slock held; please keep it that way */ |
ad0ebb96 MCC |
585 | static void free_buffer(struct videobuf_queue *vq, struct em28xx_buffer *buf) |
586 | { | |
3b5fa928 AT |
587 | struct em28xx_fh *fh = vq->priv_data; |
588 | struct em28xx *dev = fh->dev; | |
589 | unsigned long flags = 0; | |
ad0ebb96 MCC |
590 | if (in_interrupt()) |
591 | BUG(); | |
592 | ||
3b5fa928 AT |
593 | /* We used to wait for the buffer to finish here, but this didn't work |
594 | because, as we were keeping the state as VIDEOBUF_QUEUED, | |
595 | videobuf_queue_cancel marked it as finished for us. | |
596 | (Also, it could wedge forever if the hardware was misconfigured.) | |
597 | ||
598 | This should be safe; by the time we get here, the buffer isn't | |
599 | queued anymore. If we ever start marking the buffers as | |
600 | VIDEOBUF_ACTIVE, it won't be, though. | |
601 | */ | |
602 | spin_lock_irqsave(&dev->slock, flags); | |
603 | if (dev->isoc_ctl.buf == buf) | |
604 | dev->isoc_ctl.buf = NULL; | |
605 | spin_unlock_irqrestore(&dev->slock, flags); | |
606 | ||
ad0ebb96 MCC |
607 | videobuf_vmalloc_free(&buf->vb); |
608 | buf->vb.state = VIDEOBUF_NEEDS_INIT; | |
609 | } | |
610 | ||
611 | static int | |
612 | buffer_prepare(struct videobuf_queue *vq, struct videobuf_buffer *vb, | |
613 | enum v4l2_field field) | |
614 | { | |
615 | struct em28xx_fh *fh = vq->priv_data; | |
f245e549 | 616 | struct em28xx_buffer *buf = container_of(vb, struct em28xx_buffer, vb); |
ad0ebb96 | 617 | struct em28xx *dev = fh->dev; |
d7aa8020 | 618 | struct em28xx_dmaqueue *vidq = &dev->vidq; |
ad0ebb96 | 619 | int rc = 0, urb_init = 0; |
ad0ebb96 | 620 | |
ad0ebb96 MCC |
621 | /* FIXME: It assumes depth = 16 */ |
622 | /* The only currently supported format is 16 bits/pixel */ | |
d7aa8020 | 623 | buf->vb.size = 16 * dev->width * dev->height >> 3; |
ad0ebb96 MCC |
624 | |
625 | if (0 != buf->vb.baddr && buf->vb.bsize < buf->vb.size) | |
626 | return -EINVAL; | |
627 | ||
05612975 BP |
628 | buf->vb.width = dev->width; |
629 | buf->vb.height = dev->height; | |
630 | buf->vb.field = field; | |
ad0ebb96 MCC |
631 | |
632 | if (VIDEOBUF_NEEDS_INIT == buf->vb.state) { | |
d7aa8020 AT |
633 | rc = videobuf_iolock(vq, &buf->vb, NULL); |
634 | if (rc < 0) | |
ad0ebb96 | 635 | goto fail; |
ad0ebb96 MCC |
636 | } |
637 | ||
ad0ebb96 | 638 | if (!dev->isoc_ctl.num_bufs) |
f245e549 | 639 | urb_init = 1; |
ad0ebb96 MCC |
640 | |
641 | if (urb_init) { | |
f245e549 MCC |
642 | rc = em28xx_prepare_isoc(dev, EM28XX_NUM_PACKETS, |
643 | EM28XX_NUM_BUFS); | |
644 | if (rc < 0) | |
d7aa8020 AT |
645 | goto fail; |
646 | ||
d7aa8020 | 647 | rc = em28xx_start_thread(vidq); |
f245e549 | 648 | if (rc < 0) |
ad0ebb96 MCC |
649 | goto fail; |
650 | } | |
651 | ||
652 | buf->vb.state = VIDEOBUF_PREPARED; | |
653 | return 0; | |
654 | ||
655 | fail: | |
f245e549 | 656 | free_buffer(vq, buf); |
ad0ebb96 MCC |
657 | return rc; |
658 | } | |
659 | ||
660 | static void | |
661 | buffer_queue(struct videobuf_queue *vq, struct videobuf_buffer *vb) | |
662 | { | |
663 | struct em28xx_buffer *buf = container_of(vb, struct em28xx_buffer, vb); | |
664 | struct em28xx_fh *fh = vq->priv_data; | |
f245e549 | 665 | struct em28xx *dev = fh->dev; |
ad0ebb96 | 666 | struct em28xx_dmaqueue *vidq = &dev->vidq; |
ad0ebb96 | 667 | |
d7aa8020 AT |
668 | buf->vb.state = VIDEOBUF_QUEUED; |
669 | list_add_tail(&buf->vb.queue, &vidq->active); | |
670 | ||
ad0ebb96 MCC |
671 | } |
672 | ||
673 | static void buffer_release(struct videobuf_queue *vq, struct videobuf_buffer *vb) | |
674 | { | |
f245e549 | 675 | struct em28xx_buffer *buf = container_of(vb, struct em28xx_buffer, vb); |
ad0ebb96 | 676 | struct em28xx_fh *fh = vq->priv_data; |
f245e549 | 677 | struct em28xx *dev = (struct em28xx *)fh->dev; |
ad0ebb96 | 678 | |
d7aa8020 | 679 | em28xx_isocdbg("em28xx: called buffer_release\n"); |
ad0ebb96 | 680 | |
f245e549 | 681 | free_buffer(vq, buf); |
ad0ebb96 MCC |
682 | } |
683 | ||
684 | static struct videobuf_queue_ops em28xx_video_qops = { | |
685 | .buf_setup = buffer_setup, | |
686 | .buf_prepare = buffer_prepare, | |
687 | .buf_queue = buffer_queue, | |
688 | .buf_release = buffer_release, | |
689 | }; | |
a6c2ba28 | 690 | |
691 | /********************* v4l2 interface ******************************************/ | |
692 | ||
a6c2ba28 | 693 | /* |
3acf2809 | 694 | * em28xx_config() |
a6c2ba28 | 695 | * inits registers with sane defaults |
696 | */ | |
3acf2809 | 697 | static int em28xx_config(struct em28xx *dev) |
a6c2ba28 | 698 | { |
699 | ||
700 | /* Sets I2C speed to 100 KHz */ | |
2b2c93ac SS |
701 | if (!dev->is_em2800) |
702 | em28xx_write_regs_req(dev, 0x00, 0x06, "\x40", 1); | |
a6c2ba28 | 703 | |
704 | /* enable vbi capturing */ | |
e5589bef | 705 | |
9475fb1c MR |
706 | /* em28xx_write_regs_req(dev,0x00,0x0e,"\xC0",1); audio register */ |
707 | /* em28xx_write_regs_req(dev,0x00,0x0f,"\x80",1); clk register */ | |
e5589bef MCC |
708 | em28xx_write_regs_req(dev,0x00,0x11,"\x51",1); |
709 | ||
a6c2ba28 | 710 | dev->mute = 1; /* maybe not the right place... */ |
711 | dev->volume = 0x1f; | |
539c96d0 | 712 | |
3acf2809 MCC |
713 | em28xx_outfmt_set_yuv422(dev); |
714 | em28xx_colorlevels_set_default(dev); | |
715 | em28xx_compression_disable(dev); | |
a6c2ba28 | 716 | |
717 | return 0; | |
718 | } | |
719 | ||
720 | /* | |
3acf2809 | 721 | * em28xx_config_i2c() |
a6c2ba28 | 722 | * configure i2c attached devices |
723 | */ | |
943a4902 | 724 | static void em28xx_config_i2c(struct em28xx *dev) |
a6c2ba28 | 725 | { |
c7c0b34c HV |
726 | struct v4l2_routing route; |
727 | ||
728 | route.input = INPUT(dev->ctl_input)->vmux; | |
729 | route.output = 0; | |
663d1ba2 | 730 | em28xx_i2c_call_clients(dev, VIDIOC_INT_RESET, NULL); |
c7c0b34c | 731 | em28xx_i2c_call_clients(dev, VIDIOC_INT_S_VIDEO_ROUTING, &route); |
f5762e44 | 732 | em28xx_i2c_call_clients(dev, VIDIOC_STREAMON, NULL); |
a6c2ba28 | 733 | } |
734 | ||
eac94356 MCC |
735 | static void video_mux(struct em28xx *dev, int index) |
736 | { | |
c7c0b34c | 737 | struct v4l2_routing route; |
eac94356 | 738 | |
c7c0b34c HV |
739 | route.input = INPUT(index)->vmux; |
740 | route.output = 0; | |
eac94356 MCC |
741 | dev->ctl_input = index; |
742 | dev->ctl_ainput = INPUT(index)->amux; | |
743 | ||
c7c0b34c | 744 | em28xx_i2c_call_clients(dev, VIDIOC_INT_S_VIDEO_ROUTING, &route); |
eac94356 | 745 | |
eac94356 | 746 | if (dev->has_msp34xx) { |
9bb13a6d MCC |
747 | if (dev->i2s_speed) |
748 | em28xx_i2c_call_clients(dev, VIDIOC_INT_I2S_CLOCK_FREQ, &dev->i2s_speed); | |
2474ed44 | 749 | route.input = dev->ctl_ainput; |
07151724 | 750 | route.output = MSP_OUTPUT(MSP_SC_IN_DSP_SCART1); |
2474ed44 HV |
751 | /* Note: this is msp3400 specific */ |
752 | em28xx_i2c_call_clients(dev, VIDIOC_INT_S_AUDIO_ROUTING, &route); | |
eac94356 | 753 | } |
539c96d0 | 754 | |
00b8730f | 755 | em28xx_audio_analog_set(dev); |
eac94356 MCC |
756 | } |
757 | ||
a225452e MCC |
758 | /* Usage lock check functions */ |
759 | static int res_get(struct em28xx_fh *fh) | |
760 | { | |
761 | struct em28xx *dev = fh->dev; | |
762 | int rc = 0; | |
763 | ||
764 | /* This instance already has stream_on */ | |
765 | if (fh->stream_on) | |
766 | return rc; | |
767 | ||
a225452e | 768 | if (dev->stream_on) |
e74153d4 | 769 | return -EINVAL; |
a225452e | 770 | |
e74153d4 MCC |
771 | mutex_lock(&dev->lock); |
772 | dev->stream_on = 1; | |
773 | fh->stream_on = 1; | |
a225452e MCC |
774 | mutex_unlock(&dev->lock); |
775 | return rc; | |
776 | } | |
777 | ||
778 | static int res_check(struct em28xx_fh *fh) | |
779 | { | |
780 | return (fh->stream_on); | |
781 | } | |
782 | ||
783 | static void res_free(struct em28xx_fh *fh) | |
784 | { | |
785 | struct em28xx *dev = fh->dev; | |
786 | ||
787 | mutex_lock(&dev->lock); | |
788 | fh->stream_on = 0; | |
789 | dev->stream_on = 0; | |
790 | mutex_unlock(&dev->lock); | |
791 | } | |
792 | ||
195a4ef6 MCC |
793 | /* |
794 | * em28xx_get_ctrl() | |
795 | * return the current saturation, brightness or contrast, mute state | |
796 | */ | |
797 | static int em28xx_get_ctrl(struct em28xx *dev, struct v4l2_control *ctrl) | |
798 | { | |
799 | switch (ctrl->id) { | |
800 | case V4L2_CID_AUDIO_MUTE: | |
801 | ctrl->value = dev->mute; | |
802 | return 0; | |
803 | case V4L2_CID_AUDIO_VOLUME: | |
804 | ctrl->value = dev->volume; | |
805 | return 0; | |
806 | default: | |
807 | return -EINVAL; | |
a6c2ba28 | 808 | } |
195a4ef6 | 809 | } |
a6c2ba28 | 810 | |
195a4ef6 MCC |
811 | /* |
812 | * em28xx_set_ctrl() | |
813 | * mute or set new saturation, brightness or contrast | |
814 | */ | |
815 | static int em28xx_set_ctrl(struct em28xx *dev, const struct v4l2_control *ctrl) | |
816 | { | |
817 | switch (ctrl->id) { | |
818 | case V4L2_CID_AUDIO_MUTE: | |
819 | if (ctrl->value != dev->mute) { | |
820 | dev->mute = ctrl->value; | |
195a4ef6 MCC |
821 | return em28xx_audio_analog_set(dev); |
822 | } | |
823 | return 0; | |
824 | case V4L2_CID_AUDIO_VOLUME: | |
825 | dev->volume = ctrl->value; | |
826 | return em28xx_audio_analog_set(dev); | |
827 | default: | |
828 | return -EINVAL; | |
829 | } | |
830 | } | |
a6c2ba28 | 831 | |
195a4ef6 MCC |
832 | static int check_dev(struct em28xx *dev) |
833 | { | |
834 | if (dev->state & DEV_DISCONNECTED) { | |
835 | em28xx_errdev("v4l2 ioctl: device not present\n"); | |
836 | return -ENODEV; | |
e5589bef | 837 | } |
a6c2ba28 | 838 | |
195a4ef6 MCC |
839 | if (dev->state & DEV_MISCONFIGURED) { |
840 | em28xx_errdev("v4l2 ioctl: device is misconfigured; " | |
841 | "close and open it again\n"); | |
842 | return -EIO; | |
843 | } | |
844 | return 0; | |
845 | } | |
a6c2ba28 | 846 | |
195a4ef6 MCC |
847 | static void get_scale(struct em28xx *dev, |
848 | unsigned int width, unsigned int height, | |
849 | unsigned int *hscale, unsigned int *vscale) | |
850 | { | |
851 | unsigned int maxw = norm_maxw(dev); | |
852 | unsigned int maxh = norm_maxh(dev); | |
853 | ||
854 | *hscale = (((unsigned long)maxw) << 12) / width - 4096L; | |
855 | if (*hscale >= 0x4000) | |
856 | *hscale = 0x3fff; | |
857 | ||
858 | *vscale = (((unsigned long)maxh) << 12) / height - 4096L; | |
859 | if (*vscale >= 0x4000) | |
860 | *vscale = 0x3fff; | |
a6c2ba28 | 861 | } |
862 | ||
195a4ef6 MCC |
863 | /* ------------------------------------------------------------------ |
864 | IOCTL vidioc handling | |
865 | ------------------------------------------------------------------*/ | |
866 | ||
867 | static int vidioc_g_fmt_cap(struct file *file, void *priv, | |
868 | struct v4l2_format *f) | |
a6c2ba28 | 869 | { |
195a4ef6 MCC |
870 | struct em28xx_fh *fh = priv; |
871 | struct em28xx *dev = fh->dev; | |
a6c2ba28 | 872 | |
195a4ef6 | 873 | mutex_lock(&dev->lock); |
e5589bef | 874 | |
195a4ef6 MCC |
875 | f->fmt.pix.width = dev->width; |
876 | f->fmt.pix.height = dev->height; | |
877 | f->fmt.pix.pixelformat = V4L2_PIX_FMT_YUYV; | |
44dc733c MCC |
878 | f->fmt.pix.bytesperline = dev->width * 2; |
879 | f->fmt.pix.sizeimage = f->fmt.pix.bytesperline * dev->height; | |
195a4ef6 | 880 | f->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M; |
e5589bef | 881 | |
195a4ef6 MCC |
882 | /* FIXME: TOP? NONE? BOTTOM? ALTENATE? */ |
883 | f->fmt.pix.field = dev->interlaced ? | |
884 | V4L2_FIELD_INTERLACED : V4L2_FIELD_TOP; | |
e5589bef | 885 | |
195a4ef6 MCC |
886 | mutex_unlock(&dev->lock); |
887 | return 0; | |
a6c2ba28 | 888 | } |
889 | ||
195a4ef6 MCC |
890 | static int vidioc_try_fmt_cap(struct file *file, void *priv, |
891 | struct v4l2_format *f) | |
a6c2ba28 | 892 | { |
195a4ef6 MCC |
893 | struct em28xx_fh *fh = priv; |
894 | struct em28xx *dev = fh->dev; | |
895 | int width = f->fmt.pix.width; | |
896 | int height = f->fmt.pix.height; | |
897 | unsigned int maxw = norm_maxw(dev); | |
898 | unsigned int maxh = norm_maxh(dev); | |
899 | unsigned int hscale, vscale; | |
900 | ||
901 | /* width must even because of the YUYV format | |
902 | height must be even because of interlacing */ | |
903 | height &= 0xfffe; | |
904 | width &= 0xfffe; | |
a6c2ba28 | 905 | |
195a4ef6 MCC |
906 | if (height < 32) |
907 | height = 32; | |
908 | if (height > maxh) | |
909 | height = maxh; | |
910 | if (width < 48) | |
911 | width = 48; | |
912 | if (width > maxw) | |
913 | width = maxw; | |
a6c2ba28 | 914 | |
195a4ef6 | 915 | mutex_lock(&dev->lock); |
a225452e | 916 | |
195a4ef6 MCC |
917 | if (dev->is_em2800) { |
918 | /* the em2800 can only scale down to 50% */ | |
919 | if (height % (maxh / 2)) | |
920 | height = maxh; | |
921 | if (width % (maxw / 2)) | |
922 | width = maxw; | |
923 | /* according to empiatech support */ | |
924 | /* the MaxPacketSize is to small to support */ | |
925 | /* framesizes larger than 640x480 @ 30 fps */ | |
926 | /* or 640x576 @ 25 fps. As this would cut */ | |
927 | /* of a part of the image we prefer */ | |
928 | /* 360x576 or 360x480 for now */ | |
929 | if (width == maxw && height == maxh) | |
930 | width /= 2; | |
931 | } | |
a225452e | 932 | |
195a4ef6 | 933 | get_scale(dev, width, height, &hscale, &vscale); |
a6c2ba28 | 934 | |
195a4ef6 MCC |
935 | width = (((unsigned long)maxw) << 12) / (hscale + 4096L); |
936 | height = (((unsigned long)maxh) << 12) / (vscale + 4096L); | |
a6c2ba28 | 937 | |
195a4ef6 MCC |
938 | f->fmt.pix.width = width; |
939 | f->fmt.pix.height = height; | |
940 | f->fmt.pix.pixelformat = V4L2_PIX_FMT_YUYV; | |
941 | f->fmt.pix.bytesperline = width * 2; | |
942 | f->fmt.pix.sizeimage = width * 2 * height; | |
943 | f->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M; | |
944 | f->fmt.pix.field = V4L2_FIELD_INTERLACED; | |
a6c2ba28 | 945 | |
3593cab5 | 946 | mutex_unlock(&dev->lock); |
a6c2ba28 | 947 | return 0; |
948 | } | |
949 | ||
195a4ef6 MCC |
950 | static int vidioc_s_fmt_cap(struct file *file, void *priv, |
951 | struct v4l2_format *f) | |
a6c2ba28 | 952 | { |
195a4ef6 MCC |
953 | struct em28xx_fh *fh = priv; |
954 | struct em28xx *dev = fh->dev; | |
ad0ebb96 | 955 | int rc; |
a6c2ba28 | 956 | |
195a4ef6 MCC |
957 | rc = check_dev(dev); |
958 | if (rc < 0) | |
959 | return rc; | |
a225452e | 960 | |
195a4ef6 | 961 | vidioc_try_fmt_cap(file, priv, f); |
a225452e | 962 | |
5a80415b SS |
963 | mutex_lock(&dev->lock); |
964 | ||
05612975 BP |
965 | if (videobuf_queue_is_busy(&fh->vb_vidq)) { |
966 | em28xx_errdev("%s queue busy\n", __func__); | |
967 | rc = -EBUSY; | |
968 | goto out; | |
969 | } | |
970 | ||
0ea13e6e AT |
971 | if (dev->stream_on && !fh->stream_on) { |
972 | em28xx_errdev("%s device in use by another fh\n", __func__); | |
973 | rc = -EBUSY; | |
974 | goto out; | |
975 | } | |
976 | ||
195a4ef6 MCC |
977 | /* set new image size */ |
978 | dev->width = f->fmt.pix.width; | |
979 | dev->height = f->fmt.pix.height; | |
195a4ef6 | 980 | get_scale(dev, dev->width, dev->height, &dev->hscale, &dev->vscale); |
a6c2ba28 | 981 | |
195a4ef6 | 982 | em28xx_set_alternate(dev); |
195a4ef6 | 983 | em28xx_resolution_set(dev); |
195a4ef6 | 984 | |
05612975 BP |
985 | rc = 0; |
986 | ||
987 | out: | |
195a4ef6 | 988 | mutex_unlock(&dev->lock); |
05612975 | 989 | return rc; |
195a4ef6 MCC |
990 | } |
991 | ||
992 | static int vidioc_s_std(struct file *file, void *priv, v4l2_std_id *norm) | |
993 | { | |
994 | struct em28xx_fh *fh = priv; | |
995 | struct em28xx *dev = fh->dev; | |
996 | struct v4l2_format f; | |
195a4ef6 MCC |
997 | int rc; |
998 | ||
999 | rc = check_dev(dev); | |
1000 | if (rc < 0) | |
1001 | return rc; | |
1002 | ||
195a4ef6 | 1003 | mutex_lock(&dev->lock); |
7d497f8a | 1004 | dev->norm = *norm; |
195a4ef6 | 1005 | mutex_unlock(&dev->lock); |
a6c2ba28 | 1006 | |
195a4ef6 MCC |
1007 | /* Adjusts width/height, if needed */ |
1008 | f.fmt.pix.width = dev->width; | |
1009 | f.fmt.pix.height = dev->height; | |
1010 | vidioc_try_fmt_cap(file, priv, &f); | |
a6c2ba28 | 1011 | |
195a4ef6 | 1012 | mutex_lock(&dev->lock); |
a6c2ba28 | 1013 | |
195a4ef6 MCC |
1014 | /* set new image size */ |
1015 | dev->width = f.fmt.pix.width; | |
1016 | dev->height = f.fmt.pix.height; | |
195a4ef6 | 1017 | get_scale(dev, dev->width, dev->height, &dev->hscale, &dev->vscale); |
a6c2ba28 | 1018 | |
195a4ef6 | 1019 | em28xx_resolution_set(dev); |
7d497f8a | 1020 | em28xx_i2c_call_clients(dev, VIDIOC_S_STD, &dev->norm); |
a6c2ba28 | 1021 | |
195a4ef6 MCC |
1022 | mutex_unlock(&dev->lock); |
1023 | return 0; | |
1024 | } | |
9e31ced8 | 1025 | |
195a4ef6 MCC |
1026 | static const char *iname[] = { |
1027 | [EM28XX_VMUX_COMPOSITE1] = "Composite1", | |
1028 | [EM28XX_VMUX_COMPOSITE2] = "Composite2", | |
1029 | [EM28XX_VMUX_COMPOSITE3] = "Composite3", | |
1030 | [EM28XX_VMUX_COMPOSITE4] = "Composite4", | |
1031 | [EM28XX_VMUX_SVIDEO] = "S-Video", | |
1032 | [EM28XX_VMUX_TELEVISION] = "Television", | |
1033 | [EM28XX_VMUX_CABLE] = "Cable TV", | |
1034 | [EM28XX_VMUX_DVB] = "DVB", | |
1035 | [EM28XX_VMUX_DEBUG] = "for debug only", | |
1036 | }; | |
9e31ced8 | 1037 | |
195a4ef6 MCC |
1038 | static int vidioc_enum_input(struct file *file, void *priv, |
1039 | struct v4l2_input *i) | |
1040 | { | |
1041 | struct em28xx_fh *fh = priv; | |
1042 | struct em28xx *dev = fh->dev; | |
1043 | unsigned int n; | |
9e31ced8 | 1044 | |
195a4ef6 MCC |
1045 | n = i->index; |
1046 | if (n >= MAX_EM28XX_INPUT) | |
1047 | return -EINVAL; | |
1048 | if (0 == INPUT(n)->type) | |
1049 | return -EINVAL; | |
9e31ced8 | 1050 | |
195a4ef6 MCC |
1051 | i->index = n; |
1052 | i->type = V4L2_INPUT_TYPE_CAMERA; | |
a6c2ba28 | 1053 | |
195a4ef6 | 1054 | strcpy(i->name, iname[INPUT(n)->type]); |
a6c2ba28 | 1055 | |
195a4ef6 MCC |
1056 | if ((EM28XX_VMUX_TELEVISION == INPUT(n)->type) || |
1057 | (EM28XX_VMUX_CABLE == INPUT(n)->type)) | |
1058 | i->type = V4L2_INPUT_TYPE_TUNER; | |
1059 | ||
7d497f8a | 1060 | i->std = dev->vdev->tvnorms; |
195a4ef6 MCC |
1061 | |
1062 | return 0; | |
a6c2ba28 | 1063 | } |
1064 | ||
195a4ef6 | 1065 | static int vidioc_g_input(struct file *file, void *priv, unsigned int *i) |
a6c2ba28 | 1066 | { |
195a4ef6 MCC |
1067 | struct em28xx_fh *fh = priv; |
1068 | struct em28xx *dev = fh->dev; | |
a6c2ba28 | 1069 | |
195a4ef6 MCC |
1070 | *i = dev->ctl_input; |
1071 | ||
1072 | return 0; | |
1073 | } | |
1074 | ||
1075 | static int vidioc_s_input(struct file *file, void *priv, unsigned int i) | |
1076 | { | |
1077 | struct em28xx_fh *fh = priv; | |
1078 | struct em28xx *dev = fh->dev; | |
1079 | int rc; | |
1080 | ||
1081 | rc = check_dev(dev); | |
1082 | if (rc < 0) | |
1083 | return rc; | |
1084 | ||
1085 | if (i >= MAX_EM28XX_INPUT) | |
1086 | return -EINVAL; | |
1087 | if (0 == INPUT(i)->type) | |
1088 | return -EINVAL; | |
a225452e | 1089 | |
5a80415b | 1090 | mutex_lock(&dev->lock); |
a6c2ba28 | 1091 | |
195a4ef6 MCC |
1092 | video_mux(dev, i); |
1093 | ||
1094 | mutex_unlock(&dev->lock); | |
1095 | return 0; | |
1096 | } | |
1097 | ||
1098 | static int vidioc_g_audio(struct file *file, void *priv, struct v4l2_audio *a) | |
1099 | { | |
1100 | struct em28xx_fh *fh = priv; | |
1101 | struct em28xx *dev = fh->dev; | |
1102 | unsigned int index = a->index; | |
1103 | ||
1104 | if (a->index > 1) | |
1105 | return -EINVAL; | |
1106 | ||
1107 | index = dev->ctl_ainput; | |
1108 | ||
1109 | if (index == 0) { | |
1110 | strcpy(a->name, "Television"); | |
a6c2ba28 | 1111 | } else { |
195a4ef6 MCC |
1112 | strcpy(a->name, "Line In"); |
1113 | } | |
1114 | a->capability = V4L2_AUDCAP_STEREO; | |
1115 | a->index = index; | |
1116 | ||
1117 | return 0; | |
1118 | } | |
1119 | ||
1120 | static int vidioc_s_audio(struct file *file, void *priv, struct v4l2_audio *a) | |
1121 | { | |
1122 | struct em28xx_fh *fh = priv; | |
1123 | struct em28xx *dev = fh->dev; | |
1124 | ||
1125 | if (a->index != dev->ctl_ainput) | |
1126 | return -EINVAL; | |
1127 | ||
1128 | return 0; | |
1129 | } | |
1130 | ||
1131 | static int vidioc_queryctrl(struct file *file, void *priv, | |
1132 | struct v4l2_queryctrl *qc) | |
1133 | { | |
1134 | struct em28xx_fh *fh = priv; | |
1135 | struct em28xx *dev = fh->dev; | |
1136 | int id = qc->id; | |
1137 | int i; | |
1138 | int rc; | |
1139 | ||
1140 | rc = check_dev(dev); | |
1141 | if (rc < 0) | |
1142 | return rc; | |
1143 | ||
1144 | memset(qc, 0, sizeof(*qc)); | |
1145 | ||
1146 | qc->id = id; | |
1147 | ||
1148 | if (!dev->has_msp34xx) { | |
1149 | for (i = 0; i < ARRAY_SIZE(em28xx_qctrl); i++) { | |
1150 | if (qc->id && qc->id == em28xx_qctrl[i].id) { | |
1151 | memcpy(qc, &(em28xx_qctrl[i]), sizeof(*qc)); | |
1152 | return 0; | |
a6c2ba28 | 1153 | } |
1154 | } | |
195a4ef6 MCC |
1155 | } |
1156 | mutex_lock(&dev->lock); | |
1157 | em28xx_i2c_call_clients(dev, VIDIOC_QUERYCTRL, qc); | |
1158 | mutex_unlock(&dev->lock); | |
a6c2ba28 | 1159 | |
195a4ef6 MCC |
1160 | if (qc->type) |
1161 | return 0; | |
1162 | else | |
1163 | return -EINVAL; | |
1164 | } | |
a6c2ba28 | 1165 | |
195a4ef6 MCC |
1166 | static int vidioc_g_ctrl(struct file *file, void *priv, |
1167 | struct v4l2_control *ctrl) | |
1168 | { | |
1169 | struct em28xx_fh *fh = priv; | |
1170 | struct em28xx *dev = fh->dev; | |
1171 | int rc; | |
a6c2ba28 | 1172 | |
195a4ef6 MCC |
1173 | rc = check_dev(dev); |
1174 | if (rc < 0) | |
1175 | return rc; | |
1176 | mutex_lock(&dev->lock); | |
a6c2ba28 | 1177 | |
195a4ef6 MCC |
1178 | if (!dev->has_msp34xx) |
1179 | rc = em28xx_get_ctrl(dev, ctrl); | |
1180 | else | |
1181 | rc = -EINVAL; | |
1182 | ||
1183 | if (rc == -EINVAL) { | |
1184 | em28xx_i2c_call_clients(dev, VIDIOC_G_CTRL, ctrl); | |
1185 | rc = 0; | |
1186 | } | |
1187 | ||
1188 | mutex_unlock(&dev->lock); | |
1189 | return rc; | |
1190 | } | |
1191 | ||
1192 | static int vidioc_s_ctrl(struct file *file, void *priv, | |
1193 | struct v4l2_control *ctrl) | |
1194 | { | |
1195 | struct em28xx_fh *fh = priv; | |
1196 | struct em28xx *dev = fh->dev; | |
1197 | u8 i; | |
1198 | int rc; | |
1199 | ||
1200 | rc = check_dev(dev); | |
1201 | if (rc < 0) | |
1202 | return rc; | |
1203 | ||
1204 | mutex_lock(&dev->lock); | |
1205 | ||
1206 | if (dev->has_msp34xx) | |
1207 | em28xx_i2c_call_clients(dev, VIDIOC_S_CTRL, ctrl); | |
1208 | else { | |
1209 | rc = 1; | |
1210 | for (i = 0; i < ARRAY_SIZE(em28xx_qctrl); i++) { | |
1211 | if (ctrl->id == em28xx_qctrl[i].id) { | |
1212 | if (ctrl->value < em28xx_qctrl[i].minimum || | |
1213 | ctrl->value > em28xx_qctrl[i].maximum) { | |
1214 | rc = -ERANGE; | |
1215 | break; | |
1216 | } | |
1217 | ||
1218 | rc = em28xx_set_ctrl(dev, ctrl); | |
1219 | break; | |
1220 | } | |
a6c2ba28 | 1221 | } |
1222 | } | |
1223 | ||
195a4ef6 MCC |
1224 | /* Control not found - try to send it to the attached devices */ |
1225 | if (rc == 1) { | |
1226 | em28xx_i2c_call_clients(dev, VIDIOC_S_CTRL, ctrl); | |
1227 | rc = 0; | |
1228 | } | |
1229 | ||
5a80415b | 1230 | mutex_unlock(&dev->lock); |
195a4ef6 | 1231 | return rc; |
a6c2ba28 | 1232 | } |
1233 | ||
195a4ef6 MCC |
1234 | static int vidioc_g_tuner(struct file *file, void *priv, |
1235 | struct v4l2_tuner *t) | |
a6c2ba28 | 1236 | { |
195a4ef6 MCC |
1237 | struct em28xx_fh *fh = priv; |
1238 | struct em28xx *dev = fh->dev; | |
1239 | int rc; | |
1240 | ||
1241 | rc = check_dev(dev); | |
1242 | if (rc < 0) | |
1243 | return rc; | |
1244 | ||
1245 | if (0 != t->index) | |
1246 | return -EINVAL; | |
1247 | ||
1248 | strcpy(t->name, "Tuner"); | |
1249 | ||
1250 | mutex_lock(&dev->lock); | |
1251 | ||
1252 | em28xx_i2c_call_clients(dev, VIDIOC_G_TUNER, t); | |
1253 | ||
1254 | mutex_unlock(&dev->lock); | |
1255 | return 0; | |
a6c2ba28 | 1256 | } |
1257 | ||
195a4ef6 MCC |
1258 | static int vidioc_s_tuner(struct file *file, void *priv, |
1259 | struct v4l2_tuner *t) | |
a6c2ba28 | 1260 | { |
195a4ef6 MCC |
1261 | struct em28xx_fh *fh = priv; |
1262 | struct em28xx *dev = fh->dev; | |
1263 | int rc; | |
63337dd3 | 1264 | |
195a4ef6 MCC |
1265 | rc = check_dev(dev); |
1266 | if (rc < 0) | |
1267 | return rc; | |
1268 | ||
1269 | if (0 != t->index) | |
1270 | return -EINVAL; | |
1271 | ||
1272 | mutex_lock(&dev->lock); | |
1273 | ||
1274 | em28xx_i2c_call_clients(dev, VIDIOC_S_TUNER, t); | |
1275 | ||
1276 | mutex_unlock(&dev->lock); | |
1277 | return 0; | |
a6c2ba28 | 1278 | } |
1279 | ||
195a4ef6 MCC |
1280 | static int vidioc_g_frequency(struct file *file, void *priv, |
1281 | struct v4l2_frequency *f) | |
1282 | { | |
1283 | struct em28xx_fh *fh = priv; | |
1284 | struct em28xx *dev = fh->dev; | |
a6c2ba28 | 1285 | |
0be43754 | 1286 | f->type = fh->radio ? V4L2_TUNER_RADIO : V4L2_TUNER_ANALOG_TV; |
195a4ef6 MCC |
1287 | f->frequency = dev->ctl_freq; |
1288 | ||
1289 | return 0; | |
1290 | } | |
1291 | ||
1292 | static int vidioc_s_frequency(struct file *file, void *priv, | |
1293 | struct v4l2_frequency *f) | |
a6c2ba28 | 1294 | { |
195a4ef6 MCC |
1295 | struct em28xx_fh *fh = priv; |
1296 | struct em28xx *dev = fh->dev; | |
1297 | int rc; | |
9c75541f | 1298 | |
195a4ef6 MCC |
1299 | rc = check_dev(dev); |
1300 | if (rc < 0) | |
1301 | return rc; | |
1302 | ||
1303 | if (0 != f->tuner) | |
1304 | return -EINVAL; | |
1305 | ||
0be43754 MCC |
1306 | if (unlikely(0 == fh->radio && f->type != V4L2_TUNER_ANALOG_TV)) |
1307 | return -EINVAL; | |
1308 | if (unlikely(1 == fh->radio && f->type != V4L2_TUNER_RADIO)) | |
195a4ef6 | 1309 | return -EINVAL; |
a225452e MCC |
1310 | |
1311 | mutex_lock(&dev->lock); | |
a3a048ce | 1312 | |
195a4ef6 MCC |
1313 | dev->ctl_freq = f->frequency; |
1314 | em28xx_i2c_call_clients(dev, VIDIOC_S_FREQUENCY, f); | |
a6c2ba28 | 1315 | |
195a4ef6 MCC |
1316 | mutex_unlock(&dev->lock); |
1317 | return 0; | |
1318 | } | |
a6c2ba28 | 1319 | |
1e7ad56f MCC |
1320 | #ifdef CONFIG_VIDEO_ADV_DEBUG |
1321 | static int em28xx_reg_len(int reg) | |
1322 | { | |
1323 | switch (reg) { | |
1324 | case AC97LSB_REG: | |
1325 | case HSCALELOW_REG: | |
1326 | case VSCALELOW_REG: | |
1e7ad56f MCC |
1327 | return 2; |
1328 | default: | |
1329 | return 1; | |
1330 | } | |
1331 | } | |
1332 | ||
1333 | static int vidioc_g_register(struct file *file, void *priv, | |
1334 | struct v4l2_register *reg) | |
1335 | { | |
1336 | struct em28xx_fh *fh = priv; | |
1337 | struct em28xx *dev = fh->dev; | |
1338 | int ret; | |
1339 | ||
1340 | if (!v4l2_chip_match_host(reg->match_type, reg->match_chip)) | |
1341 | return -EINVAL; | |
1342 | ||
1343 | if (em28xx_reg_len(reg->reg) == 1) { | |
1344 | ret = em28xx_read_reg(dev, reg->reg); | |
1345 | if (ret < 0) | |
1346 | return ret; | |
1347 | ||
1348 | reg->val = ret; | |
1349 | } else { | |
0df8130f | 1350 | u64 val = 0; |
1e7ad56f MCC |
1351 | ret = em28xx_read_reg_req_len(dev, USB_REQ_GET_STATUS, |
1352 | reg->reg, (char *)&val, 2); | |
1353 | if (ret < 0) | |
1354 | return ret; | |
1355 | ||
0df8130f | 1356 | reg->val = cpu_to_le64((__u64)val); |
1e7ad56f MCC |
1357 | } |
1358 | ||
1359 | return 0; | |
1360 | } | |
1361 | ||
1362 | static int vidioc_s_register(struct file *file, void *priv, | |
1363 | struct v4l2_register *reg) | |
1364 | { | |
1365 | struct em28xx_fh *fh = priv; | |
1366 | struct em28xx *dev = fh->dev; | |
0df8130f | 1367 | u64 buf; |
1e7ad56f | 1368 | |
0df8130f | 1369 | buf = le64_to_cpu((__u64)reg->val); |
1e7ad56f MCC |
1370 | |
1371 | return em28xx_write_regs(dev, reg->reg, (char *)&buf, | |
1372 | em28xx_reg_len(reg->reg)); | |
1373 | } | |
1374 | #endif | |
1375 | ||
1376 | ||
195a4ef6 MCC |
1377 | static int vidioc_cropcap(struct file *file, void *priv, |
1378 | struct v4l2_cropcap *cc) | |
1379 | { | |
1380 | struct em28xx_fh *fh = priv; | |
1381 | struct em28xx *dev = fh->dev; | |
1382 | ||
1383 | if (cc->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) | |
a6c2ba28 | 1384 | return -EINVAL; |
a6c2ba28 | 1385 | |
195a4ef6 MCC |
1386 | cc->bounds.left = 0; |
1387 | cc->bounds.top = 0; | |
1388 | cc->bounds.width = dev->width; | |
1389 | cc->bounds.height = dev->height; | |
1390 | cc->defrect = cc->bounds; | |
1391 | cc->pixelaspect.numerator = 54; /* 4:3 FIXME: remove magic numbers */ | |
1392 | cc->pixelaspect.denominator = 59; | |
1393 | ||
1394 | return 0; | |
1395 | } | |
1396 | ||
1397 | static int vidioc_streamon(struct file *file, void *priv, | |
1398 | enum v4l2_buf_type type) | |
1399 | { | |
1400 | struct em28xx_fh *fh = priv; | |
1401 | struct em28xx *dev = fh->dev; | |
1402 | int rc; | |
1403 | ||
1404 | rc = check_dev(dev); | |
1405 | if (rc < 0) | |
1406 | return rc; | |
1407 | ||
195a4ef6 | 1408 | |
ad0ebb96 | 1409 | if (unlikely(res_get(fh) < 0)) |
195a4ef6 | 1410 | return -EBUSY; |
a6c2ba28 | 1411 | |
ad0ebb96 | 1412 | return (videobuf_streamon(&fh->vb_vidq)); |
195a4ef6 MCC |
1413 | } |
1414 | ||
1415 | static int vidioc_streamoff(struct file *file, void *priv, | |
1416 | enum v4l2_buf_type type) | |
1417 | { | |
1418 | struct em28xx_fh *fh = priv; | |
1419 | struct em28xx *dev = fh->dev; | |
1420 | int rc; | |
1421 | ||
1422 | rc = check_dev(dev); | |
1423 | if (rc < 0) | |
1424 | return rc; | |
1425 | ||
ad0ebb96 MCC |
1426 | if (fh->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) |
1427 | return -EINVAL; | |
1428 | if (type != fh->type) | |
195a4ef6 MCC |
1429 | return -EINVAL; |
1430 | ||
ad0ebb96 MCC |
1431 | videobuf_streamoff(&fh->vb_vidq); |
1432 | res_free(fh); | |
a6c2ba28 | 1433 | |
a6c2ba28 | 1434 | return 0; |
1435 | } | |
1436 | ||
195a4ef6 MCC |
1437 | static int vidioc_querycap(struct file *file, void *priv, |
1438 | struct v4l2_capability *cap) | |
a6c2ba28 | 1439 | { |
195a4ef6 MCC |
1440 | struct em28xx_fh *fh = priv; |
1441 | struct em28xx *dev = fh->dev; | |
1442 | ||
1443 | strlcpy(cap->driver, "em28xx", sizeof(cap->driver)); | |
1444 | strlcpy(cap->card, em28xx_boards[dev->model].name, sizeof(cap->card)); | |
1445 | strlcpy(cap->bus_info, dev->udev->dev.bus_id, sizeof(cap->bus_info)); | |
1446 | ||
1447 | cap->version = EM28XX_VERSION_CODE; | |
1448 | ||
1449 | cap->capabilities = | |
1450 | V4L2_CAP_SLICED_VBI_CAPTURE | | |
1451 | V4L2_CAP_VIDEO_CAPTURE | | |
1452 | V4L2_CAP_AUDIO | | |
1453 | V4L2_CAP_READWRITE | V4L2_CAP_STREAMING; | |
1454 | ||
ed086314 | 1455 | if (dev->tuner_type != TUNER_ABSENT) |
195a4ef6 MCC |
1456 | cap->capabilities |= V4L2_CAP_TUNER; |
1457 | ||
1458 | return 0; | |
c0477ad9 MCC |
1459 | } |
1460 | ||
195a4ef6 MCC |
1461 | static int vidioc_enum_fmt_cap(struct file *file, void *priv, |
1462 | struct v4l2_fmtdesc *fmtd) | |
a6c2ba28 | 1463 | { |
195a4ef6 | 1464 | if (fmtd->index != 0) |
c0477ad9 | 1465 | return -EINVAL; |
195a4ef6 MCC |
1466 | |
1467 | fmtd->type = V4L2_BUF_TYPE_VIDEO_CAPTURE; | |
1468 | strcpy(fmtd->description, "Packed YUY2"); | |
1469 | fmtd->pixelformat = V4L2_PIX_FMT_YUYV; | |
1470 | memset(fmtd->reserved, 0, sizeof(fmtd->reserved)); | |
1471 | ||
1472 | return 0; | |
c0477ad9 MCC |
1473 | } |
1474 | ||
195a4ef6 MCC |
1475 | /* Sliced VBI ioctls */ |
1476 | static int vidioc_g_fmt_vbi_capture(struct file *file, void *priv, | |
1477 | struct v4l2_format *f) | |
a6c2ba28 | 1478 | { |
195a4ef6 MCC |
1479 | struct em28xx_fh *fh = priv; |
1480 | struct em28xx *dev = fh->dev; | |
1481 | int rc; | |
a6c2ba28 | 1482 | |
195a4ef6 MCC |
1483 | rc = check_dev(dev); |
1484 | if (rc < 0) | |
1485 | return rc; | |
a6c2ba28 | 1486 | |
195a4ef6 MCC |
1487 | mutex_lock(&dev->lock); |
1488 | ||
1489 | f->fmt.sliced.service_set = 0; | |
1490 | ||
1491 | em28xx_i2c_call_clients(dev, VIDIOC_G_FMT, f); | |
1492 | ||
1493 | if (f->fmt.sliced.service_set == 0) | |
1494 | rc = -EINVAL; | |
1495 | ||
1496 | mutex_unlock(&dev->lock); | |
1497 | return rc; | |
1498 | } | |
1499 | ||
1500 | static int vidioc_try_set_vbi_capture(struct file *file, void *priv, | |
1501 | struct v4l2_format *f) | |
1502 | { | |
1503 | struct em28xx_fh *fh = priv; | |
1504 | struct em28xx *dev = fh->dev; | |
1505 | int rc; | |
1506 | ||
1507 | rc = check_dev(dev); | |
1508 | if (rc < 0) | |
1509 | return rc; | |
1510 | ||
1511 | mutex_lock(&dev->lock); | |
1512 | em28xx_i2c_call_clients(dev, VIDIOC_G_FMT, f); | |
1513 | mutex_unlock(&dev->lock); | |
1514 | ||
1515 | if (f->fmt.sliced.service_set == 0) | |
1516 | return -EINVAL; | |
a6c2ba28 | 1517 | |
1518 | return 0; | |
1519 | } | |
1520 | ||
195a4ef6 MCC |
1521 | |
1522 | static int vidioc_reqbufs(struct file *file, void *priv, | |
1523 | struct v4l2_requestbuffers *rb) | |
a6c2ba28 | 1524 | { |
195a4ef6 MCC |
1525 | struct em28xx_fh *fh = priv; |
1526 | struct em28xx *dev = fh->dev; | |
195a4ef6 | 1527 | int rc; |
a6c2ba28 | 1528 | |
195a4ef6 MCC |
1529 | rc = check_dev(dev); |
1530 | if (rc < 0) | |
1531 | return rc; | |
a6c2ba28 | 1532 | |
ad0ebb96 | 1533 | return (videobuf_reqbufs(&fh->vb_vidq, rb)); |
a6c2ba28 | 1534 | } |
1535 | ||
195a4ef6 MCC |
1536 | static int vidioc_querybuf(struct file *file, void *priv, |
1537 | struct v4l2_buffer *b) | |
e5589bef | 1538 | { |
195a4ef6 MCC |
1539 | struct em28xx_fh *fh = priv; |
1540 | struct em28xx *dev = fh->dev; | |
1541 | int rc; | |
e5589bef | 1542 | |
195a4ef6 MCC |
1543 | rc = check_dev(dev); |
1544 | if (rc < 0) | |
1545 | return rc; | |
2d50f847 | 1546 | |
ad0ebb96 | 1547 | return (videobuf_querybuf(&fh->vb_vidq, b)); |
195a4ef6 MCC |
1548 | } |
1549 | ||
1550 | static int vidioc_qbuf(struct file *file, void *priv, struct v4l2_buffer *b) | |
1551 | { | |
1552 | struct em28xx_fh *fh = priv; | |
1553 | struct em28xx *dev = fh->dev; | |
195a4ef6 MCC |
1554 | int rc; |
1555 | ||
1556 | rc = check_dev(dev); | |
1557 | if (rc < 0) | |
1558 | return rc; | |
1559 | ||
ad0ebb96 | 1560 | return (videobuf_qbuf(&fh->vb_vidq, b)); |
e5589bef MCC |
1561 | } |
1562 | ||
195a4ef6 | 1563 | static int vidioc_dqbuf(struct file *file, void *priv, struct v4l2_buffer *b) |
2d50f847 | 1564 | { |
195a4ef6 MCC |
1565 | struct em28xx_fh *fh = priv; |
1566 | struct em28xx *dev = fh->dev; | |
1567 | int rc; | |
195a4ef6 MCC |
1568 | |
1569 | rc = check_dev(dev); | |
1570 | if (rc < 0) | |
1571 | return rc; | |
2d50f847 | 1572 | |
ad0ebb96 MCC |
1573 | return (videobuf_dqbuf(&fh->vb_vidq, b, |
1574 | file->f_flags & O_NONBLOCK)); | |
1575 | } | |
2d50f847 | 1576 | |
ad0ebb96 | 1577 | #ifdef CONFIG_VIDEO_V4L1_COMPAT |
f245e549 | 1578 | static int vidiocgmbuf(struct file *file, void *priv, struct video_mbuf *mbuf) |
ad0ebb96 | 1579 | { |
f245e549 | 1580 | struct em28xx_fh *fh = priv; |
2d50f847 | 1581 | |
f245e549 | 1582 | return videobuf_cgmbuf(&fh->vb_vidq, mbuf, 8); |
195a4ef6 | 1583 | } |
ad0ebb96 MCC |
1584 | #endif |
1585 | ||
2d50f847 | 1586 | |
0be43754 MCC |
1587 | /* ----------------------------------------------------------- */ |
1588 | /* RADIO ESPECIFIC IOCTLS */ | |
1589 | /* ----------------------------------------------------------- */ | |
1590 | ||
1591 | static int radio_querycap(struct file *file, void *priv, | |
1592 | struct v4l2_capability *cap) | |
1593 | { | |
1594 | struct em28xx *dev = ((struct em28xx_fh *)priv)->dev; | |
1595 | ||
1596 | strlcpy(cap->driver, "em28xx", sizeof(cap->driver)); | |
1597 | strlcpy(cap->card, em28xx_boards[dev->model].name, sizeof(cap->card)); | |
1598 | strlcpy(cap->bus_info, dev->udev->dev.bus_id, sizeof(cap->bus_info)); | |
1599 | ||
1600 | cap->version = EM28XX_VERSION_CODE; | |
1601 | cap->capabilities = V4L2_CAP_TUNER; | |
1602 | return 0; | |
1603 | } | |
1604 | ||
1605 | static int radio_g_tuner(struct file *file, void *priv, | |
1606 | struct v4l2_tuner *t) | |
1607 | { | |
1608 | struct em28xx *dev = ((struct em28xx_fh *)priv)->dev; | |
1609 | ||
1610 | if (unlikely(t->index > 0)) | |
1611 | return -EINVAL; | |
1612 | ||
1613 | strcpy(t->name, "Radio"); | |
1614 | t->type = V4L2_TUNER_RADIO; | |
1615 | ||
1616 | em28xx_i2c_call_clients(dev, VIDIOC_G_TUNER, t); | |
1617 | return 0; | |
1618 | } | |
1619 | ||
1620 | static int radio_enum_input(struct file *file, void *priv, | |
1621 | struct v4l2_input *i) | |
1622 | { | |
1623 | if (i->index != 0) | |
1624 | return -EINVAL; | |
1625 | strcpy(i->name, "Radio"); | |
1626 | i->type = V4L2_INPUT_TYPE_TUNER; | |
1627 | ||
1628 | return 0; | |
1629 | } | |
1630 | ||
1631 | static int radio_g_audio(struct file *file, void *priv, struct v4l2_audio *a) | |
1632 | { | |
1633 | if (unlikely(a->index)) | |
1634 | return -EINVAL; | |
1635 | ||
1636 | strcpy(a->name, "Radio"); | |
1637 | return 0; | |
1638 | } | |
1639 | ||
1640 | static int radio_s_tuner(struct file *file, void *priv, | |
1641 | struct v4l2_tuner *t) | |
1642 | { | |
1643 | struct em28xx *dev = ((struct em28xx_fh *)priv)->dev; | |
1644 | ||
1645 | if (0 != t->index) | |
1646 | return -EINVAL; | |
1647 | ||
1648 | em28xx_i2c_call_clients(dev, VIDIOC_S_TUNER, t); | |
1649 | ||
1650 | return 0; | |
1651 | } | |
1652 | ||
1653 | static int radio_s_audio(struct file *file, void *fh, | |
1654 | struct v4l2_audio *a) | |
1655 | { | |
1656 | return 0; | |
1657 | } | |
1658 | ||
1659 | static int radio_s_input(struct file *file, void *fh, unsigned int i) | |
1660 | { | |
1661 | return 0; | |
1662 | } | |
1663 | ||
1664 | static int radio_queryctrl(struct file *file, void *priv, | |
1665 | struct v4l2_queryctrl *qc) | |
1666 | { | |
1667 | int i; | |
1668 | ||
1669 | if (qc->id < V4L2_CID_BASE || | |
1670 | qc->id >= V4L2_CID_LASTP1) | |
1671 | return -EINVAL; | |
1672 | ||
1673 | for (i = 0; i < ARRAY_SIZE(em28xx_qctrl); i++) { | |
1674 | if (qc->id && qc->id == em28xx_qctrl[i].id) { | |
1675 | memcpy(qc, &(em28xx_qctrl[i]), sizeof(*qc)); | |
1676 | return 0; | |
1677 | } | |
1678 | } | |
1679 | ||
1680 | return -EINVAL; | |
1681 | } | |
1682 | ||
195a4ef6 MCC |
1683 | /* |
1684 | * em28xx_v4l2_open() | |
1685 | * inits the device and starts isoc transfer | |
1686 | */ | |
1687 | static int em28xx_v4l2_open(struct inode *inode, struct file *filp) | |
1688 | { | |
1689 | int minor = iminor(inode); | |
0be43754 | 1690 | int errCode = 0, radio = 0; |
195a4ef6 MCC |
1691 | struct em28xx *h,*dev = NULL; |
1692 | struct em28xx_fh *fh; | |
d7aa8020 | 1693 | enum v4l2_buf_type fh_type = 0; |
2d50f847 | 1694 | |
195a4ef6 MCC |
1695 | list_for_each_entry(h, &em28xx_devlist, devlist) { |
1696 | if (h->vdev->minor == minor) { | |
1697 | dev = h; | |
d7aa8020 | 1698 | fh_type = V4L2_BUF_TYPE_VIDEO_CAPTURE; |
195a4ef6 MCC |
1699 | } |
1700 | if (h->vbi_dev->minor == minor) { | |
1701 | dev = h; | |
d7aa8020 | 1702 | fh_type = V4L2_BUF_TYPE_VBI_CAPTURE; |
195a4ef6 | 1703 | } |
0be43754 MCC |
1704 | if (h->radio_dev && |
1705 | h->radio_dev->minor == minor) { | |
1706 | radio = 1; | |
1707 | dev = h; | |
1708 | } | |
2d50f847 | 1709 | } |
195a4ef6 MCC |
1710 | if (NULL == dev) |
1711 | return -ENODEV; | |
2d50f847 | 1712 | |
195a4ef6 | 1713 | em28xx_videodbg("open minor=%d type=%s users=%d\n", |
d7aa8020 | 1714 | minor, v4l2_type_names[fh_type], dev->users); |
2d50f847 | 1715 | |
195a4ef6 | 1716 | fh = kzalloc(sizeof(struct em28xx_fh), GFP_KERNEL); |
9aeb4b05 | 1717 | |
195a4ef6 MCC |
1718 | if (!fh) { |
1719 | em28xx_errdev("em28xx-video.c: Out of memory?!\n"); | |
1720 | return -ENOMEM; | |
1721 | } | |
1722 | mutex_lock(&dev->lock); | |
1723 | fh->dev = dev; | |
0be43754 | 1724 | fh->radio = radio; |
d7aa8020 | 1725 | fh->type = fh_type; |
195a4ef6 | 1726 | filp->private_data = fh; |
9aeb4b05 | 1727 | |
d7aa8020 | 1728 | if (fh->type == V4L2_BUF_TYPE_VIDEO_CAPTURE && dev->users == 0) { |
195a4ef6 MCC |
1729 | dev->width = norm_maxw(dev); |
1730 | dev->height = norm_maxh(dev); | |
195a4ef6 MCC |
1731 | dev->hscale = 0; |
1732 | dev->vscale = 0; | |
2d50f847 | 1733 | |
3687e1e6 | 1734 | em28xx_set_alternate(dev); |
195a4ef6 | 1735 | em28xx_resolution_set(dev); |
2d50f847 | 1736 | |
2d50f847 | 1737 | } |
0be43754 MCC |
1738 | if (fh->radio) { |
1739 | em28xx_videodbg("video_open: setting radio device\n"); | |
1740 | em28xx_i2c_call_clients(dev, AUDC_SET_RADIO, NULL); | |
1741 | } | |
2d50f847 | 1742 | |
195a4ef6 | 1743 | dev->users++; |
2d50f847 | 1744 | |
ad0ebb96 MCC |
1745 | videobuf_queue_vmalloc_init(&fh->vb_vidq, &em28xx_video_qops, |
1746 | NULL, &dev->slock, fh->type, V4L2_FIELD_INTERLACED, | |
1747 | sizeof(struct em28xx_buffer), fh); | |
1748 | ||
195a4ef6 MCC |
1749 | mutex_unlock(&dev->lock); |
1750 | return errCode; | |
2d50f847 | 1751 | } |
e5589bef | 1752 | |
a6c2ba28 | 1753 | /* |
195a4ef6 MCC |
1754 | * em28xx_realease_resources() |
1755 | * unregisters the v4l2,i2c and usb devices | |
1756 | * called when the device gets disconected or at module unload | |
1757 | */ | |
1758 | static void em28xx_release_resources(struct em28xx *dev) | |
a6c2ba28 | 1759 | { |
a6c2ba28 | 1760 | |
195a4ef6 | 1761 | /*FIXME: I2C IR should be disconnected */ |
a6c2ba28 | 1762 | |
195a4ef6 MCC |
1763 | em28xx_info("V4L2 devices /dev/video%d and /dev/vbi%d deregistered\n", |
1764 | dev->vdev->minor-MINOR_VFL_TYPE_GRABBER_MIN, | |
1765 | dev->vbi_dev->minor-MINOR_VFL_TYPE_VBI_MIN); | |
1766 | list_del(&dev->devlist); | |
0be43754 MCC |
1767 | if (dev->radio_dev) { |
1768 | if (-1 != dev->radio_dev->minor) | |
1769 | video_unregister_device(dev->radio_dev); | |
1770 | else | |
1771 | video_device_release(dev->radio_dev); | |
1772 | dev->radio_dev = NULL; | |
1773 | } | |
1774 | if (dev->vbi_dev) { | |
1775 | if (-1 != dev->vbi_dev->minor) | |
1776 | video_unregister_device(dev->vbi_dev); | |
1777 | else | |
1778 | video_device_release(dev->vbi_dev); | |
1779 | dev->vbi_dev = NULL; | |
1780 | } | |
1781 | if (dev->vdev) { | |
1782 | if (-1 != dev->vdev->minor) | |
1783 | video_unregister_device(dev->vdev); | |
1784 | else | |
1785 | video_device_release(dev->vdev); | |
1786 | dev->vdev = NULL; | |
1787 | } | |
195a4ef6 MCC |
1788 | em28xx_i2c_unregister(dev); |
1789 | usb_put_dev(dev->udev); | |
a6c2ba28 | 1790 | |
195a4ef6 MCC |
1791 | /* Mark device as unused */ |
1792 | em28xx_devused&=~(1<<dev->devno); | |
1793 | } | |
a6c2ba28 | 1794 | |
195a4ef6 MCC |
1795 | /* |
1796 | * em28xx_v4l2_close() | |
1797 | * stops streaming and deallocates all resources allocated by the v4l2 calls and ioctls | |
1798 | */ | |
1799 | static int em28xx_v4l2_close(struct inode *inode, struct file *filp) | |
1800 | { | |
1801 | struct em28xx_fh *fh = filp->private_data; | |
1802 | struct em28xx *dev = fh->dev; | |
1803 | int errCode; | |
a6c2ba28 | 1804 | |
195a4ef6 | 1805 | em28xx_videodbg("users=%d\n", dev->users); |
a6c2ba28 | 1806 | |
a6c2ba28 | 1807 | |
195a4ef6 MCC |
1808 | if (res_check(fh)) |
1809 | res_free(fh); | |
a6c2ba28 | 1810 | |
195a4ef6 | 1811 | mutex_lock(&dev->lock); |
a6c2ba28 | 1812 | |
195a4ef6 | 1813 | if (dev->users == 1) { |
ad0ebb96 MCC |
1814 | videobuf_stop(&fh->vb_vidq); |
1815 | videobuf_mmap_free(&fh->vb_vidq); | |
a6c2ba28 | 1816 | |
195a4ef6 MCC |
1817 | /* the device is already disconnect, |
1818 | free the remaining resources */ | |
1819 | if (dev->state & DEV_DISCONNECTED) { | |
1820 | em28xx_release_resources(dev); | |
1821 | mutex_unlock(&dev->lock); | |
1822 | kfree(dev); | |
1823 | return 0; | |
1824 | } | |
a6c2ba28 | 1825 | |
d7aa8020 AT |
1826 | /* do this before setting alternate! */ |
1827 | em28xx_uninit_isoc(dev); | |
1828 | ||
195a4ef6 MCC |
1829 | /* set alternate 0 */ |
1830 | dev->alt = 0; | |
1831 | em28xx_videodbg("setting alternate 0\n"); | |
1832 | errCode = usb_set_interface(dev->udev, 0, 0); | |
1833 | if (errCode < 0) { | |
1834 | em28xx_errdev("cannot change alternate number to " | |
1835 | "0 (error=%i)\n", errCode); | |
1836 | } | |
9aeb4b05 | 1837 | } |
195a4ef6 MCC |
1838 | kfree(fh); |
1839 | dev->users--; | |
1840 | wake_up_interruptible_nr(&dev->open, 1); | |
1841 | mutex_unlock(&dev->lock); | |
1842 | return 0; | |
1843 | } | |
a6c2ba28 | 1844 | |
195a4ef6 MCC |
1845 | /* |
1846 | * em28xx_v4l2_read() | |
1847 | * will allocate buffers when called for the first time | |
1848 | */ | |
1849 | static ssize_t | |
1850 | em28xx_v4l2_read(struct file *filp, char __user * buf, size_t count, | |
f245e549 | 1851 | loff_t *pos) |
195a4ef6 | 1852 | { |
195a4ef6 MCC |
1853 | struct em28xx_fh *fh = filp->private_data; |
1854 | struct em28xx *dev = fh->dev; | |
ad0ebb96 MCC |
1855 | int rc; |
1856 | ||
1857 | rc = check_dev(dev); | |
1858 | if (rc < 0) | |
1859 | return rc; | |
a6c2ba28 | 1860 | |
195a4ef6 MCC |
1861 | /* FIXME: read() is not prepared to allow changing the video |
1862 | resolution while streaming. Seems a bug at em28xx_set_fmt | |
1863 | */ | |
a6c2ba28 | 1864 | |
ad0ebb96 MCC |
1865 | if (fh->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) { |
1866 | if (unlikely(res_get(fh))) | |
1867 | return -EBUSY; | |
195a4ef6 | 1868 | |
ad0ebb96 MCC |
1869 | return videobuf_read_stream(&fh->vb_vidq, buf, count, pos, 0, |
1870 | filp->f_flags & O_NONBLOCK); | |
195a4ef6 | 1871 | } |
ad0ebb96 | 1872 | return 0; |
a6c2ba28 | 1873 | } |
1874 | ||
1875 | /* | |
195a4ef6 MCC |
1876 | * em28xx_v4l2_poll() |
1877 | * will allocate buffers when called for the first time | |
a6c2ba28 | 1878 | */ |
195a4ef6 | 1879 | static unsigned int em28xx_v4l2_poll(struct file *filp, poll_table * wait) |
a6c2ba28 | 1880 | { |
a3a048ce | 1881 | struct em28xx_fh *fh = filp->private_data; |
195a4ef6 | 1882 | struct em28xx *dev = fh->dev; |
ad0ebb96 MCC |
1883 | int rc; |
1884 | ||
1885 | rc = check_dev(dev); | |
1886 | if (rc < 0) | |
1887 | return rc; | |
a6c2ba28 | 1888 | |
195a4ef6 MCC |
1889 | if (unlikely(res_get(fh) < 0)) |
1890 | return POLLERR; | |
a6c2ba28 | 1891 | |
ad0ebb96 MCC |
1892 | if (V4L2_BUF_TYPE_VIDEO_CAPTURE != fh->type) |
1893 | return POLLERR; | |
a6c2ba28 | 1894 | |
ad0ebb96 | 1895 | return videobuf_poll_stream(filp, &fh->vb_vidq, wait); |
195a4ef6 | 1896 | } |
a6c2ba28 | 1897 | |
195a4ef6 MCC |
1898 | /* |
1899 | * em28xx_v4l2_mmap() | |
1900 | */ | |
1901 | static int em28xx_v4l2_mmap(struct file *filp, struct vm_area_struct *vma) | |
1902 | { | |
1903 | struct em28xx_fh *fh = filp->private_data; | |
1904 | struct em28xx *dev = fh->dev; | |
ad0ebb96 | 1905 | int rc; |
a6c2ba28 | 1906 | |
195a4ef6 MCC |
1907 | if (unlikely(res_get(fh) < 0)) |
1908 | return -EBUSY; | |
a6c2ba28 | 1909 | |
ad0ebb96 MCC |
1910 | rc = check_dev(dev); |
1911 | if (rc < 0) | |
1912 | return rc; | |
a6c2ba28 | 1913 | |
ad0ebb96 | 1914 | rc = videobuf_mmap_mapper(&fh->vb_vidq, vma); |
a6c2ba28 | 1915 | |
ad0ebb96 MCC |
1916 | em28xx_videodbg("vma start=0x%08lx, size=%ld, ret=%d\n", |
1917 | (unsigned long)vma->vm_start, | |
1918 | (unsigned long)vma->vm_end-(unsigned long)vma->vm_start, | |
1919 | rc); | |
a6c2ba28 | 1920 | |
ad0ebb96 | 1921 | return rc; |
a6c2ba28 | 1922 | } |
1923 | ||
fa027c2a | 1924 | static const struct file_operations em28xx_v4l_fops = { |
195a4ef6 MCC |
1925 | .owner = THIS_MODULE, |
1926 | .open = em28xx_v4l2_open, | |
1927 | .release = em28xx_v4l2_close, | |
1928 | .read = em28xx_v4l2_read, | |
1929 | .poll = em28xx_v4l2_poll, | |
1930 | .mmap = em28xx_v4l2_mmap, | |
1931 | .ioctl = video_ioctl2, | |
1932 | .llseek = no_llseek, | |
1933 | .compat_ioctl = v4l_compat_ioctl32, | |
1934 | }; | |
17cbe2e5 | 1935 | |
0be43754 MCC |
1936 | static const struct file_operations radio_fops = { |
1937 | .owner = THIS_MODULE, | |
1938 | .open = em28xx_v4l2_open, | |
1939 | .release = em28xx_v4l2_close, | |
1940 | .ioctl = video_ioctl2, | |
1941 | .compat_ioctl = v4l_compat_ioctl32, | |
1942 | .llseek = no_llseek, | |
1943 | }; | |
1944 | ||
195a4ef6 MCC |
1945 | static const struct video_device em28xx_video_template = { |
1946 | .fops = &em28xx_v4l_fops, | |
1947 | .release = video_device_release, | |
1948 | ||
1949 | .minor = -1, | |
1950 | .vidioc_querycap = vidioc_querycap, | |
1951 | .vidioc_enum_fmt_cap = vidioc_enum_fmt_cap, | |
1952 | .vidioc_g_fmt_cap = vidioc_g_fmt_cap, | |
1953 | .vidioc_try_fmt_cap = vidioc_try_fmt_cap, | |
1954 | .vidioc_s_fmt_cap = vidioc_s_fmt_cap, | |
1955 | .vidioc_g_audio = vidioc_g_audio, | |
1956 | .vidioc_s_audio = vidioc_s_audio, | |
1957 | .vidioc_cropcap = vidioc_cropcap, | |
1958 | ||
1959 | .vidioc_g_fmt_vbi_capture = vidioc_g_fmt_vbi_capture, | |
1960 | .vidioc_try_fmt_vbi_capture = vidioc_try_set_vbi_capture, | |
1961 | .vidioc_s_fmt_vbi_capture = vidioc_try_set_vbi_capture, | |
1962 | ||
1963 | .vidioc_reqbufs = vidioc_reqbufs, | |
1964 | .vidioc_querybuf = vidioc_querybuf, | |
1965 | .vidioc_qbuf = vidioc_qbuf, | |
1966 | .vidioc_dqbuf = vidioc_dqbuf, | |
1967 | .vidioc_s_std = vidioc_s_std, | |
1968 | .vidioc_enum_input = vidioc_enum_input, | |
1969 | .vidioc_g_input = vidioc_g_input, | |
1970 | .vidioc_s_input = vidioc_s_input, | |
1971 | .vidioc_queryctrl = vidioc_queryctrl, | |
1972 | .vidioc_g_ctrl = vidioc_g_ctrl, | |
1973 | .vidioc_s_ctrl = vidioc_s_ctrl, | |
1974 | .vidioc_streamon = vidioc_streamon, | |
1975 | .vidioc_streamoff = vidioc_streamoff, | |
1976 | .vidioc_g_tuner = vidioc_g_tuner, | |
1977 | .vidioc_s_tuner = vidioc_s_tuner, | |
1978 | .vidioc_g_frequency = vidioc_g_frequency, | |
1979 | .vidioc_s_frequency = vidioc_s_frequency, | |
1e7ad56f MCC |
1980 | #ifdef CONFIG_VIDEO_ADV_DEBUG |
1981 | .vidioc_g_register = vidioc_g_register, | |
1982 | .vidioc_s_register = vidioc_s_register, | |
1983 | #endif | |
ad0ebb96 MCC |
1984 | #ifdef CONFIG_VIDEO_V4L1_COMPAT |
1985 | .vidiocgmbuf = vidiocgmbuf, | |
1986 | #endif | |
195a4ef6 MCC |
1987 | |
1988 | .tvnorms = V4L2_STD_ALL, | |
7d497f8a | 1989 | .current_norm = V4L2_STD_PAL, |
a6c2ba28 | 1990 | }; |
1991 | ||
0be43754 MCC |
1992 | static struct video_device em28xx_radio_template = { |
1993 | .name = "em28xx-radio", | |
1994 | .type = VID_TYPE_TUNER, | |
1995 | .fops = &radio_fops, | |
1996 | .minor = -1, | |
1997 | .vidioc_querycap = radio_querycap, | |
1998 | .vidioc_g_tuner = radio_g_tuner, | |
1999 | .vidioc_enum_input = radio_enum_input, | |
2000 | .vidioc_g_audio = radio_g_audio, | |
2001 | .vidioc_s_tuner = radio_s_tuner, | |
2002 | .vidioc_s_audio = radio_s_audio, | |
2003 | .vidioc_s_input = radio_s_input, | |
2004 | .vidioc_queryctrl = radio_queryctrl, | |
2005 | .vidioc_g_ctrl = vidioc_g_ctrl, | |
2006 | .vidioc_s_ctrl = vidioc_s_ctrl, | |
2007 | .vidioc_g_frequency = vidioc_g_frequency, | |
2008 | .vidioc_s_frequency = vidioc_s_frequency, | |
1e7ad56f MCC |
2009 | #ifdef CONFIG_VIDEO_ADV_DEBUG |
2010 | .vidioc_g_register = vidioc_g_register, | |
2011 | .vidioc_s_register = vidioc_s_register, | |
2012 | #endif | |
0be43754 MCC |
2013 | }; |
2014 | ||
a6c2ba28 | 2015 | /******************************** usb interface *****************************************/ |
2016 | ||
6d79468d MCC |
2017 | |
2018 | static LIST_HEAD(em28xx_extension_devlist); | |
2019 | static DEFINE_MUTEX(em28xx_extension_devlist_lock); | |
2020 | ||
2021 | int em28xx_register_extension(struct em28xx_ops *ops) | |
2022 | { | |
2023 | struct em28xx *h, *dev = NULL; | |
2024 | ||
2025 | list_for_each_entry(h, &em28xx_devlist, devlist) | |
2026 | dev = h; | |
2027 | ||
2028 | mutex_lock(&em28xx_extension_devlist_lock); | |
2029 | list_add_tail(&ops->next, &em28xx_extension_devlist); | |
2030 | if (dev) | |
2031 | ops->init(dev); | |
2032 | ||
2033 | printk(KERN_INFO "Em28xx: Initialized (%s) extension\n", ops->name); | |
2034 | mutex_unlock(&em28xx_extension_devlist_lock); | |
2035 | ||
2036 | return 0; | |
2037 | } | |
2038 | EXPORT_SYMBOL(em28xx_register_extension); | |
2039 | ||
2040 | void em28xx_unregister_extension(struct em28xx_ops *ops) | |
2041 | { | |
2042 | struct em28xx *h, *dev = NULL; | |
2043 | ||
2044 | list_for_each_entry(h, &em28xx_devlist, devlist) | |
2045 | dev = h; | |
2046 | ||
2047 | if (dev) | |
2048 | ops->fini(dev); | |
2049 | ||
2050 | mutex_lock(&em28xx_extension_devlist_lock); | |
2051 | printk(KERN_INFO "Em28xx: Removed (%s) extension\n", ops->name); | |
2052 | list_del(&ops->next); | |
2053 | mutex_unlock(&em28xx_extension_devlist_lock); | |
2054 | } | |
2055 | EXPORT_SYMBOL(em28xx_unregister_extension); | |
2056 | ||
532fe652 AB |
2057 | static struct video_device *em28xx_vdev_init(struct em28xx *dev, |
2058 | const struct video_device *template, | |
2059 | const int type, | |
2060 | const char *type_name) | |
0be43754 MCC |
2061 | { |
2062 | struct video_device *vfd; | |
2063 | ||
2064 | vfd = video_device_alloc(); | |
2065 | if (NULL == vfd) | |
2066 | return NULL; | |
2067 | *vfd = *template; | |
2068 | vfd->minor = -1; | |
2069 | vfd->dev = &dev->udev->dev; | |
2070 | vfd->release = video_device_release; | |
2071 | vfd->type = type; | |
e9e6040d | 2072 | vfd->debug = video_debug; |
0be43754 MCC |
2073 | |
2074 | snprintf(vfd->name, sizeof(vfd->name), "%s %s", | |
2075 | dev->name, type_name); | |
2076 | ||
2077 | return vfd; | |
2078 | } | |
2079 | ||
2080 | ||
a6c2ba28 | 2081 | /* |
3acf2809 | 2082 | * em28xx_init_dev() |
a6c2ba28 | 2083 | * allocates and inits the device structs, registers i2c bus and v4l device |
2084 | */ | |
3acf2809 | 2085 | static int em28xx_init_dev(struct em28xx **devhandle, struct usb_device *udev, |
03910cc3 | 2086 | int minor) |
a6c2ba28 | 2087 | { |
6d79468d | 2088 | struct em28xx_ops *ops = NULL; |
3acf2809 | 2089 | struct em28xx *dev = *devhandle; |
a6c2ba28 | 2090 | int retval = -ENOMEM; |
7d497f8a | 2091 | int errCode; |
a6c2ba28 | 2092 | unsigned int maxh, maxw; |
a6c2ba28 | 2093 | |
a6c2ba28 | 2094 | dev->udev = udev; |
3593cab5 | 2095 | mutex_init(&dev->lock); |
d7aa8020 | 2096 | spin_lock_init(&dev->slock); |
a6c2ba28 | 2097 | init_waitqueue_head(&dev->open); |
a3a048ce MCC |
2098 | init_waitqueue_head(&dev->wait_frame); |
2099 | init_waitqueue_head(&dev->wait_stream); | |
a6c2ba28 | 2100 | |
3acf2809 MCC |
2101 | dev->em28xx_write_regs = em28xx_write_regs; |
2102 | dev->em28xx_read_reg = em28xx_read_reg; | |
2103 | dev->em28xx_read_reg_req_len = em28xx_read_reg_req_len; | |
2104 | dev->em28xx_write_regs_req = em28xx_write_regs_req; | |
2105 | dev->em28xx_read_reg_req = em28xx_read_reg_req; | |
fad7b958 | 2106 | dev->is_em2800 = em28xx_boards[dev->model].is_em2800; |
a6c2ba28 | 2107 | |
d7448a8d MCC |
2108 | errCode = em28xx_read_reg(dev, CHIPID_REG); |
2109 | if (errCode >= 0) | |
2110 | em28xx_info("em28xx chip ID = %d\n", errCode); | |
2111 | ||
a94e95b4 | 2112 | em28xx_pre_card_setup(dev); |
03910cc3 | 2113 | |
3acf2809 | 2114 | errCode = em28xx_config(dev); |
a6c2ba28 | 2115 | if (errCode) { |
3acf2809 | 2116 | em28xx_errdev("error configuring device\n"); |
03910cc3 | 2117 | em28xx_devused &= ~(1<<dev->devno); |
7c908fbb | 2118 | kfree(dev); |
a6c2ba28 | 2119 | return -ENOMEM; |
2120 | } | |
2121 | ||
a6c2ba28 | 2122 | /* register i2c bus */ |
3acf2809 | 2123 | em28xx_i2c_register(dev); |
a6c2ba28 | 2124 | |
2125 | /* Do board specific init and eeprom reading */ | |
3acf2809 | 2126 | em28xx_card_setup(dev); |
a6c2ba28 | 2127 | |
3abee53e MCC |
2128 | /* Configure audio */ |
2129 | em28xx_audio_analog_set(dev); | |
2130 | ||
a6c2ba28 | 2131 | /* configure the device */ |
3acf2809 | 2132 | em28xx_config_i2c(dev); |
a6c2ba28 | 2133 | |
7d497f8a MCC |
2134 | /* set default norm */ |
2135 | dev->norm = em28xx_video_template.current_norm; | |
03910cc3 MCC |
2136 | |
2137 | maxw = norm_maxw(dev); | |
2138 | maxh = norm_maxh(dev); | |
2139 | ||
2140 | /* set default image size */ | |
2141 | dev->width = maxw; | |
2142 | dev->height = maxh; | |
2143 | dev->interlaced = EM28XX_INTERLACED_DEFAULT; | |
03910cc3 MCC |
2144 | dev->hscale = 0; |
2145 | dev->vscale = 0; | |
2146 | dev->ctl_input = 2; | |
2147 | ||
3acf2809 | 2148 | errCode = em28xx_config(dev); |
a6c2ba28 | 2149 | |
0be43754 MCC |
2150 | list_add_tail(&dev->devlist, &em28xx_devlist); |
2151 | ||
195a4ef6 | 2152 | /* allocate and fill video video_device struct */ |
0be43754 MCC |
2153 | dev->vdev = em28xx_vdev_init(dev, &em28xx_video_template, |
2154 | VID_TYPE_CAPTURE, "video"); | |
a6c2ba28 | 2155 | if (NULL == dev->vdev) { |
3acf2809 | 2156 | em28xx_errdev("cannot allocate video_device.\n"); |
0be43754 | 2157 | goto fail_unreg; |
e5589bef | 2158 | } |
ed086314 | 2159 | if (dev->tuner_type != TUNER_ABSENT) |
195a4ef6 | 2160 | dev->vdev->type |= VID_TYPE_TUNER; |
0be43754 MCC |
2161 | |
2162 | /* register v4l2 video video_device */ | |
2163 | retval = video_register_device(dev->vdev, VFL_TYPE_GRABBER, | |
2164 | video_nr[dev->devno]); | |
2165 | if (retval) { | |
2166 | em28xx_errdev("unable to register video device (error=%i).\n", | |
2167 | retval); | |
2168 | goto fail_unreg; | |
2169 | } | |
e5589bef | 2170 | |
195a4ef6 | 2171 | /* Allocate and fill vbi video_device struct */ |
0be43754 MCC |
2172 | dev->vbi_dev = em28xx_vdev_init(dev, &em28xx_video_template, |
2173 | VFL_TYPE_VBI, "vbi"); | |
2174 | /* register v4l2 vbi video_device */ | |
2175 | if (video_register_device(dev->vbi_dev, VFL_TYPE_VBI, | |
2176 | vbi_nr[dev->devno]) < 0) { | |
2177 | em28xx_errdev("unable to register vbi device\n"); | |
2178 | retval = -ENODEV; | |
2179 | goto fail_unreg; | |
2180 | } | |
2181 | ||
2182 | if (em28xx_boards[dev->model].radio.type == EM28XX_RADIO) { | |
2183 | dev->radio_dev = em28xx_vdev_init(dev, &em28xx_radio_template, | |
2184 | VFL_TYPE_RADIO, "radio"); | |
2185 | if (NULL == dev->radio_dev) { | |
2186 | em28xx_errdev("cannot allocate video_device.\n"); | |
2187 | goto fail_unreg; | |
2188 | } | |
2189 | retval = video_register_device(dev->radio_dev, VFL_TYPE_RADIO, | |
2190 | radio_nr[dev->devno]); | |
2191 | if (retval < 0) { | |
2192 | em28xx_errdev("can't register radio device\n"); | |
2193 | goto fail_unreg; | |
2194 | } | |
2195 | em28xx_info("Registered radio device as /dev/radio%d\n", | |
2196 | dev->radio_dev->minor & 0x1f); | |
a6c2ba28 | 2197 | } |
e5589bef | 2198 | |
ad0ebb96 MCC |
2199 | /* init video dma queues */ |
2200 | INIT_LIST_HEAD(&dev->vidq.active); | |
2201 | INIT_LIST_HEAD(&dev->vidq.queued); | |
2202 | ||
a6c2ba28 | 2203 | |
5a80415b SS |
2204 | if (dev->has_msp34xx) { |
2205 | /* Send a reset to other chips via gpio */ | |
2206 | em28xx_write_regs_req(dev, 0x00, 0x08, "\xf7", 1); | |
2207 | msleep(3); | |
2208 | em28xx_write_regs_req(dev, 0x00, 0x08, "\xff", 1); | |
2209 | msleep(3); | |
5a80415b | 2210 | } |
195a4ef6 | 2211 | |
5a80415b SS |
2212 | video_mux(dev, 0); |
2213 | ||
e5589bef MCC |
2214 | em28xx_info("V4L2 device registered as /dev/video%d and /dev/vbi%d\n", |
2215 | dev->vdev->minor-MINOR_VFL_TYPE_GRABBER_MIN, | |
2216 | dev->vbi_dev->minor-MINOR_VFL_TYPE_VBI_MIN); | |
a6c2ba28 | 2217 | |
6d79468d MCC |
2218 | mutex_lock(&em28xx_extension_devlist_lock); |
2219 | if (!list_empty(&em28xx_extension_devlist)) { | |
2220 | list_for_each_entry(ops, &em28xx_extension_devlist, next) { | |
2221 | if (ops->id) | |
2222 | ops->init(dev); | |
2223 | } | |
2224 | } | |
2225 | mutex_unlock(&em28xx_extension_devlist_lock); | |
2226 | ||
a6c2ba28 | 2227 | return 0; |
0be43754 MCC |
2228 | |
2229 | fail_unreg: | |
2230 | em28xx_release_resources(dev); | |
2231 | mutex_unlock(&dev->lock); | |
2232 | kfree(dev); | |
2233 | return retval; | |
a6c2ba28 | 2234 | } |
2235 | ||
d7448a8d MCC |
2236 | #if defined(CONFIG_MODULES) && defined(MODULE) |
2237 | static void request_module_async(struct work_struct *work) | |
2238 | { | |
2239 | struct em28xx *dev = container_of(work, | |
2240 | struct em28xx, request_module_wk); | |
2241 | ||
3f4dfe2a MCC |
2242 | if (dev->has_audio_class) |
2243 | request_module("snd-usb-audio"); | |
2244 | else | |
d7448a8d | 2245 | request_module("em28xx-alsa"); |
3aefb79a MCC |
2246 | |
2247 | if (dev->has_dvb) | |
2248 | request_module("em28xx-dvb"); | |
d7448a8d MCC |
2249 | } |
2250 | ||
2251 | static void request_modules(struct em28xx *dev) | |
2252 | { | |
2253 | INIT_WORK(&dev->request_module_wk, request_module_async); | |
2254 | schedule_work(&dev->request_module_wk); | |
2255 | } | |
2256 | #else | |
2257 | #define request_modules(dev) | |
2258 | #endif /* CONFIG_MODULES */ | |
2259 | ||
a6c2ba28 | 2260 | /* |
3acf2809 | 2261 | * em28xx_usb_probe() |
a6c2ba28 | 2262 | * checks for supported devices |
2263 | */ | |
3acf2809 | 2264 | static int em28xx_usb_probe(struct usb_interface *interface, |
a6c2ba28 | 2265 | const struct usb_device_id *id) |
2266 | { | |
2267 | const struct usb_endpoint_descriptor *endpoint; | |
2268 | struct usb_device *udev; | |
9d4d9c05 | 2269 | struct usb_interface *uif; |
3acf2809 | 2270 | struct em28xx *dev = NULL; |
a6c2ba28 | 2271 | int retval = -ENODEV; |
03910cc3 | 2272 | int i, nr, ifnum; |
a6c2ba28 | 2273 | |
2274 | udev = usb_get_dev(interface_to_usbdev(interface)); | |
d5e52653 MCC |
2275 | ifnum = interface->altsetting[0].desc.bInterfaceNumber; |
2276 | ||
e5589bef MCC |
2277 | /* Check to see next free device and mark as used */ |
2278 | nr=find_first_zero_bit(&em28xx_devused,EM28XX_MAXBOARDS); | |
2279 | em28xx_devused|=1<<nr; | |
a6c2ba28 | 2280 | |
596d92d5 | 2281 | /* Don't register audio interfaces */ |
91cad0f2 | 2282 | if (interface->altsetting[0].desc.bInterfaceClass == USB_CLASS_AUDIO) { |
3acf2809 | 2283 | em28xx_err(DRIVER_NAME " audio device (%04x:%04x): interface %i, class %i\n", |
91cad0f2 MCC |
2284 | udev->descriptor.idVendor,udev->descriptor.idProduct, |
2285 | ifnum, | |
2286 | interface->altsetting[0].desc.bInterfaceClass); | |
e5589bef MCC |
2287 | |
2288 | em28xx_devused&=~(1<<nr); | |
596d92d5 | 2289 | return -ENODEV; |
91cad0f2 MCC |
2290 | } |
2291 | ||
3acf2809 | 2292 | em28xx_err(DRIVER_NAME " new video device (%04x:%04x): interface %i, class %i\n", |
91cad0f2 MCC |
2293 | udev->descriptor.idVendor,udev->descriptor.idProduct, |
2294 | ifnum, | |
2295 | interface->altsetting[0].desc.bInterfaceClass); | |
596d92d5 | 2296 | |
d5e52653 MCC |
2297 | endpoint = &interface->cur_altsetting->endpoint[1].desc; |
2298 | ||
59c51591 | 2299 | /* check if the device has the iso in endpoint at the correct place */ |
a6c2ba28 | 2300 | if ((endpoint->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) != |
2301 | USB_ENDPOINT_XFER_ISOC) { | |
3acf2809 | 2302 | em28xx_err(DRIVER_NAME " probing error: endpoint is non-ISO endpoint!\n"); |
e5589bef | 2303 | em28xx_devused&=~(1<<nr); |
a6c2ba28 | 2304 | return -ENODEV; |
2305 | } | |
2306 | if ((endpoint->bEndpointAddress & USB_ENDPOINT_DIR_MASK) == USB_DIR_OUT) { | |
3acf2809 | 2307 | em28xx_err(DRIVER_NAME " probing error: endpoint is ISO OUT endpoint!\n"); |
e5589bef | 2308 | em28xx_devused&=~(1<<nr); |
a6c2ba28 | 2309 | return -ENODEV; |
2310 | } | |
2311 | ||
19478843 | 2312 | if (nr >= EM28XX_MAXBOARDS) { |
9d4d9c05 | 2313 | printk (DRIVER_NAME ": Supports only %i em28xx boards.\n",EM28XX_MAXBOARDS); |
e5589bef | 2314 | em28xx_devused&=~(1<<nr); |
596d92d5 MCC |
2315 | return -ENOMEM; |
2316 | } | |
2317 | ||
2318 | /* allocate memory for our device state and initialize it */ | |
7408187d | 2319 | dev = kzalloc(sizeof(*dev), GFP_KERNEL); |
596d92d5 | 2320 | if (dev == NULL) { |
3acf2809 | 2321 | em28xx_err(DRIVER_NAME ": out of memory!\n"); |
e5589bef | 2322 | em28xx_devused&=~(1<<nr); |
596d92d5 MCC |
2323 | return -ENOMEM; |
2324 | } | |
596d92d5 | 2325 | |
e5589bef | 2326 | snprintf(dev->name, 29, "em28xx #%d", nr); |
03910cc3 MCC |
2327 | dev->devno = nr; |
2328 | dev->model = id->driver_info; | |
3687e1e6 | 2329 | dev->alt = -1; |
e5589bef | 2330 | |
d7448a8d MCC |
2331 | /* Checks if audio is provided by some interface */ |
2332 | for (i = 0; i < udev->config->desc.bNumInterfaces; i++) { | |
2333 | uif = udev->config->interface[i]; | |
2334 | if (uif->altsetting[0].desc.bInterfaceClass == USB_CLASS_AUDIO) { | |
2335 | dev->has_audio_class = 1; | |
2336 | break; | |
2337 | } | |
2338 | } | |
2339 | ||
2340 | printk(KERN_INFO DRIVER_NAME " %s usb audio class\n", | |
2341 | dev->has_audio_class ? "Has" : "Doesn't have"); | |
2342 | ||
9d4d9c05 MCC |
2343 | /* compute alternate max packet sizes */ |
2344 | uif = udev->actconfig->interface[0]; | |
2345 | ||
2346 | dev->num_alt=uif->num_altsetting; | |
e5589bef | 2347 | em28xx_info("Alternate settings: %i\n",dev->num_alt); |
9d4d9c05 MCC |
2348 | // dev->alt_max_pkt_size = kmalloc(sizeof(*dev->alt_max_pkt_size)* |
2349 | dev->alt_max_pkt_size = kmalloc(32* | |
2350 | dev->num_alt,GFP_KERNEL); | |
2351 | if (dev->alt_max_pkt_size == NULL) { | |
e5589bef MCC |
2352 | em28xx_errdev("out of memory!\n"); |
2353 | em28xx_devused&=~(1<<nr); | |
1207cf84 | 2354 | kfree(dev); |
9d4d9c05 MCC |
2355 | return -ENOMEM; |
2356 | } | |
2357 | ||
2358 | for (i = 0; i < dev->num_alt ; i++) { | |
2359 | u16 tmp = le16_to_cpu(uif->altsetting[i].endpoint[1].desc. | |
2360 | wMaxPacketSize); | |
2361 | dev->alt_max_pkt_size[i] = | |
2362 | (tmp & 0x07ff) * (((tmp & 0x1800) >> 11) + 1); | |
e5589bef | 2363 | em28xx_info("Alternate setting %i, max size= %i\n",i, |
9d4d9c05 MCC |
2364 | dev->alt_max_pkt_size[i]); |
2365 | } | |
2366 | ||
3acf2809 | 2367 | if ((card[nr]>=0)&&(card[nr]<em28xx_bcount)) |
03910cc3 | 2368 | dev->model = card[nr]; |
596d92d5 | 2369 | |
a6c2ba28 | 2370 | /* allocate device struct */ |
03910cc3 | 2371 | retval = em28xx_init_dev(&dev, udev, nr); |
a6c2ba28 | 2372 | if (retval) |
2373 | return retval; | |
2374 | ||
03910cc3 | 2375 | em28xx_info("Found %s\n", em28xx_boards[dev->model].name); |
a6c2ba28 | 2376 | |
2377 | /* save our data pointer in this interface device */ | |
2378 | usb_set_intfdata(interface, dev); | |
d7448a8d | 2379 | |
3aefb79a MCC |
2380 | #if defined(CONFIG_VIDEO_EM28XX_DVB) || defined(CONFIG_VIDEO_EM28XX_DVB_MODULE) |
2381 | dev->qops = kmalloc(sizeof(em28xx_video_qops), GFP_KERNEL); | |
2382 | memcpy(dev->qops, &em28xx_video_qops, sizeof(em28xx_video_qops)); | |
2383 | #endif | |
2384 | ||
d7448a8d MCC |
2385 | request_modules(dev); |
2386 | ||
a6c2ba28 | 2387 | return 0; |
2388 | } | |
2389 | ||
2390 | /* | |
3acf2809 | 2391 | * em28xx_usb_disconnect() |
a6c2ba28 | 2392 | * called when the device gets diconencted |
2393 | * video device will be unregistered on v4l2_close in case it is still open | |
2394 | */ | |
3acf2809 | 2395 | static void em28xx_usb_disconnect(struct usb_interface *interface) |
a6c2ba28 | 2396 | { |
5a80415b | 2397 | struct em28xx *dev; |
6d79468d | 2398 | struct em28xx_ops *ops = NULL; |
5a80415b SS |
2399 | |
2400 | dev = usb_get_intfdata(interface); | |
a6c2ba28 | 2401 | usb_set_intfdata(interface, NULL); |
2402 | ||
2403 | if (!dev) | |
2404 | return; | |
2405 | ||
5a80415b | 2406 | em28xx_info("disconnecting %s\n", dev->vdev->name); |
a6c2ba28 | 2407 | |
5a80415b | 2408 | /* wait until all current v4l2 io is finished then deallocate resources */ |
3593cab5 | 2409 | mutex_lock(&dev->lock); |
a6c2ba28 | 2410 | |
a6c2ba28 | 2411 | wake_up_interruptible_all(&dev->open); |
2412 | ||
2413 | if (dev->users) { | |
3acf2809 | 2414 | em28xx_warn |
a6c2ba28 | 2415 | ("device /dev/video%d is open! Deregistration and memory " |
e5589bef MCC |
2416 | "deallocation are deferred on close.\n", |
2417 | dev->vdev->minor-MINOR_VFL_TYPE_GRABBER_MIN); | |
2418 | ||
a6c2ba28 | 2419 | dev->state |= DEV_MISCONFIGURED; |
3acf2809 | 2420 | em28xx_uninit_isoc(dev); |
a6c2ba28 | 2421 | dev->state |= DEV_DISCONNECTED; |
2422 | wake_up_interruptible(&dev->wait_frame); | |
2423 | wake_up_interruptible(&dev->wait_stream); | |
2424 | } else { | |
2425 | dev->state |= DEV_DISCONNECTED; | |
3acf2809 | 2426 | em28xx_release_resources(dev); |
a6c2ba28 | 2427 | } |
3593cab5 | 2428 | mutex_unlock(&dev->lock); |
a6c2ba28 | 2429 | |
6d79468d MCC |
2430 | mutex_lock(&em28xx_extension_devlist_lock); |
2431 | if (!list_empty(&em28xx_extension_devlist)) { | |
2432 | list_for_each_entry(ops, &em28xx_extension_devlist, next) { | |
2433 | ops->fini(dev); | |
2434 | } | |
2435 | } | |
2436 | mutex_unlock(&em28xx_extension_devlist_lock); | |
2437 | ||
9d4d9c05 MCC |
2438 | if (!dev->users) { |
2439 | kfree(dev->alt_max_pkt_size); | |
a6c2ba28 | 2440 | kfree(dev); |
9d4d9c05 | 2441 | } |
a6c2ba28 | 2442 | } |
2443 | ||
3acf2809 | 2444 | static struct usb_driver em28xx_usb_driver = { |
3acf2809 MCC |
2445 | .name = "em28xx", |
2446 | .probe = em28xx_usb_probe, | |
2447 | .disconnect = em28xx_usb_disconnect, | |
2448 | .id_table = em28xx_id_table, | |
a6c2ba28 | 2449 | }; |
2450 | ||
3acf2809 | 2451 | static int __init em28xx_module_init(void) |
a6c2ba28 | 2452 | { |
2453 | int result; | |
2454 | ||
2455 | printk(KERN_INFO DRIVER_NAME " v4l2 driver version %d.%d.%d loaded\n", | |
3acf2809 MCC |
2456 | (EM28XX_VERSION_CODE >> 16) & 0xff, |
2457 | (EM28XX_VERSION_CODE >> 8) & 0xff, EM28XX_VERSION_CODE & 0xff); | |
a6c2ba28 | 2458 | #ifdef SNAPSHOT |
2459 | printk(KERN_INFO DRIVER_NAME " snapshot date %04d-%02d-%02d\n", | |
2460 | SNAPSHOT / 10000, (SNAPSHOT / 100) % 100, SNAPSHOT % 100); | |
2461 | #endif | |
2462 | ||
2463 | /* register this driver with the USB subsystem */ | |
3acf2809 | 2464 | result = usb_register(&em28xx_usb_driver); |
a6c2ba28 | 2465 | if (result) |
3acf2809 | 2466 | em28xx_err(DRIVER_NAME |
a6c2ba28 | 2467 | " usb_register failed. Error number %d.\n", result); |
2468 | ||
2469 | return result; | |
2470 | } | |
2471 | ||
3acf2809 | 2472 | static void __exit em28xx_module_exit(void) |
a6c2ba28 | 2473 | { |
2474 | /* deregister this driver with the USB subsystem */ | |
3acf2809 | 2475 | usb_deregister(&em28xx_usb_driver); |
a6c2ba28 | 2476 | } |
2477 | ||
3acf2809 MCC |
2478 | module_init(em28xx_module_init); |
2479 | module_exit(em28xx_module_exit); |