]>
Commit | Line | Data |
---|---|---|
a6c2ba28 | 1 | /* |
6ea54d93 DSL |
2 | em28xx-video.c - driver for Empia EM2800/EM2820/2840 USB |
3 | video capture devices | |
a6c2ba28 | 4 | |
f7abcd38 MCC |
5 | Copyright (C) 2005 Ludovico Cavedon <cavedon@sssup.it> |
6 | Markus Rechberger <mrechberger@gmail.com> | |
2e7c6dc3 | 7 | Mauro Carvalho Chehab <mchehab@infradead.org> |
f7abcd38 | 8 | Sascha Sommer <saschasommer@freenet.de> |
a6c2ba28 | 9 | |
439090d7 MCC |
10 | Some parts based on SN9C10x PC Camera Controllers GPL driver made |
11 | by Luca Risolia <luca.risolia@studio.unibo.it> | |
12 | ||
a6c2ba28 | 13 | This program is free software; you can redistribute it and/or modify |
14 | it under the terms of the GNU General Public License as published by | |
15 | the Free Software Foundation; either version 2 of the License, or | |
16 | (at your option) any later version. | |
17 | ||
18 | This program is distributed in the hope that it will be useful, | |
19 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
20 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
21 | GNU General Public License for more details. | |
22 | ||
23 | You should have received a copy of the GNU General Public License | |
24 | along with this program; if not, write to the Free Software | |
25 | Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. | |
26 | */ | |
27 | ||
28 | #include <linux/init.h> | |
29 | #include <linux/list.h> | |
30 | #include <linux/module.h> | |
31 | #include <linux/kernel.h> | |
e5589bef | 32 | #include <linux/bitmap.h> |
a6c2ba28 | 33 | #include <linux/usb.h> |
a6c2ba28 | 34 | #include <linux/i2c.h> |
b296fc60 | 35 | #include <linux/version.h> |
6d35c8f6 | 36 | #include <linux/mm.h> |
1e4baed3 | 37 | #include <linux/mutex.h> |
a6c2ba28 | 38 | |
f7abcd38 | 39 | #include "em28xx.h" |
c0477ad9 | 40 | #include <media/v4l2-common.h> |
2474ed44 | 41 | #include <media/msp3400.h> |
ed086314 | 42 | #include <media/tuner.h> |
a6c2ba28 | 43 | |
f7abcd38 MCC |
44 | #define DRIVER_AUTHOR "Ludovico Cavedon <cavedon@sssup.it>, " \ |
45 | "Markus Rechberger <mrechberger@gmail.com>, " \ | |
2e7c6dc3 | 46 | "Mauro Carvalho Chehab <mchehab@infradead.org>, " \ |
f7abcd38 | 47 | "Sascha Sommer <saschasommer@freenet.de>" |
a6c2ba28 | 48 | |
f7abcd38 MCC |
49 | #define DRIVER_NAME "em28xx" |
50 | #define DRIVER_DESC "Empia em28xx based USB video device driver" | |
195a4ef6 | 51 | #define EM28XX_VERSION_CODE KERNEL_VERSION(0, 1, 0) |
a6c2ba28 | 52 | |
3acf2809 | 53 | #define em28xx_videodbg(fmt, arg...) do {\ |
4ac97914 MCC |
54 | if (video_debug) \ |
55 | printk(KERN_INFO "%s %s :"fmt, \ | |
d80e134d | 56 | dev->name, __func__ , ##arg); } while (0) |
a6c2ba28 | 57 | |
ad0ebb96 | 58 | static unsigned int isoc_debug; |
f245e549 MCC |
59 | module_param(isoc_debug, int, 0644); |
60 | MODULE_PARM_DESC(isoc_debug, "enable debug messages [isoc transfers]"); | |
ad0ebb96 | 61 | |
6ea54d93 DSL |
62 | #define em28xx_isocdbg(fmt, arg...) \ |
63 | do {\ | |
64 | if (isoc_debug) { \ | |
ad0ebb96 | 65 | printk(KERN_INFO "%s %s :"fmt, \ |
6ea54d93 DSL |
66 | dev->name, __func__ , ##arg); \ |
67 | } \ | |
68 | } while (0) | |
ad0ebb96 | 69 | |
a6c2ba28 | 70 | MODULE_AUTHOR(DRIVER_AUTHOR); |
71 | MODULE_DESCRIPTION(DRIVER_DESC); | |
72 | MODULE_LICENSE("GPL"); | |
73 | ||
3acf2809 | 74 | static LIST_HEAD(em28xx_devlist); |
9c75541f | 75 | |
9d4d9c05 | 76 | static unsigned int card[] = {[0 ... (EM28XX_MAXBOARDS - 1)] = UNSET }; |
e5589bef | 77 | static unsigned int video_nr[] = {[0 ... (EM28XX_MAXBOARDS - 1)] = UNSET }; |
0be43754 MCC |
78 | static unsigned int vbi_nr[] = {[0 ... (EM28XX_MAXBOARDS - 1)] = UNSET }; |
79 | static unsigned int radio_nr[] = {[0 ... (EM28XX_MAXBOARDS - 1)] = UNSET }; | |
80 | ||
596d92d5 | 81 | module_param_array(card, int, NULL, 0444); |
e5589bef MCC |
82 | module_param_array(video_nr, int, NULL, 0444); |
83 | module_param_array(vbi_nr, int, NULL, 0444); | |
0be43754 MCC |
84 | module_param_array(radio_nr, int, NULL, 0444); |
85 | MODULE_PARM_DESC(card, "card type"); | |
86 | MODULE_PARM_DESC(video_nr, "video device numbers"); | |
87 | MODULE_PARM_DESC(vbi_nr, "vbi device numbers"); | |
88 | MODULE_PARM_DESC(radio_nr, "radio device numbers"); | |
596d92d5 | 89 | |
ff699e6b | 90 | static unsigned int video_debug; |
6ea54d93 DSL |
91 | module_param(video_debug, int, 0644); |
92 | MODULE_PARM_DESC(video_debug, "enable debug messages [video]"); | |
a6c2ba28 | 93 | |
e5589bef MCC |
94 | /* Bitmask marking allocated devices from 0 to EM28XX_MAXBOARDS */ |
95 | static unsigned long em28xx_devused; | |
96 | ||
a6c2ba28 | 97 | /* supported controls */ |
c0477ad9 | 98 | /* Common to all boards */ |
3acf2809 | 99 | static struct v4l2_queryctrl em28xx_qctrl[] = { |
c0477ad9 MCC |
100 | { |
101 | .id = V4L2_CID_AUDIO_VOLUME, | |
102 | .type = V4L2_CTRL_TYPE_INTEGER, | |
103 | .name = "Volume", | |
104 | .minimum = 0x0, | |
105 | .maximum = 0x1f, | |
106 | .step = 0x1, | |
107 | .default_value = 0x1f, | |
108 | .flags = 0, | |
6ea54d93 | 109 | }, { |
c0477ad9 MCC |
110 | .id = V4L2_CID_AUDIO_MUTE, |
111 | .type = V4L2_CTRL_TYPE_BOOLEAN, | |
112 | .name = "Mute", | |
113 | .minimum = 0, | |
114 | .maximum = 1, | |
115 | .step = 1, | |
116 | .default_value = 1, | |
117 | .flags = 0, | |
118 | } | |
119 | }; | |
120 | ||
3acf2809 | 121 | static struct usb_driver em28xx_usb_driver; |
a6c2ba28 | 122 | |
ad0ebb96 MCC |
123 | /* ------------------------------------------------------------------ |
124 | DMA and thread functions | |
125 | ------------------------------------------------------------------*/ | |
126 | ||
127 | /* | |
128 | * Announces that a buffer were filled and request the next | |
129 | */ | |
f245e549 | 130 | static inline void buffer_filled(struct em28xx *dev, |
ad0ebb96 MCC |
131 | struct em28xx_dmaqueue *dma_q, |
132 | struct em28xx_buffer *buf) | |
133 | { | |
ad0ebb96 MCC |
134 | /* Advice that buffer was filled */ |
135 | em28xx_isocdbg("[%p/%d] wakeup\n", buf, buf->vb.i); | |
136 | buf->vb.state = VIDEOBUF_DONE; | |
137 | buf->vb.field_count++; | |
138 | do_gettimeofday(&buf->vb.ts); | |
139 | ||
cb784724 MCC |
140 | dev->isoc_ctl.buf = NULL; |
141 | ||
ad0ebb96 MCC |
142 | list_del(&buf->vb.queue); |
143 | wake_up(&buf->vb.done); | |
144 | } | |
145 | ||
146 | /* | |
147 | * Identify the buffer header type and properly handles | |
148 | */ | |
149 | static void em28xx_copy_video(struct em28xx *dev, | |
150 | struct em28xx_dmaqueue *dma_q, | |
151 | struct em28xx_buffer *buf, | |
152 | unsigned char *p, | |
153 | unsigned char *outp, unsigned long len) | |
154 | { | |
155 | void *fieldstart, *startwrite, *startread; | |
f245e549 | 156 | int linesdone, currlinedone, offset, lencopy, remain; |
44dc733c | 157 | int bytesperline = dev->width << 1; |
ad0ebb96 MCC |
158 | |
159 | if (dma_q->pos + len > buf->vb.size) | |
160 | len = buf->vb.size - dma_q->pos; | |
161 | ||
d7aa8020 | 162 | if (p[0] != 0x88 && p[0] != 0x22) { |
ad0ebb96 MCC |
163 | em28xx_isocdbg("frame is not complete\n"); |
164 | len += 4; | |
165 | } else | |
f245e549 | 166 | p += 4; |
ad0ebb96 MCC |
167 | |
168 | startread = p; | |
169 | remain = len; | |
170 | ||
171 | /* Interlaces frame */ | |
172 | if (buf->top_field) | |
173 | fieldstart = outp; | |
174 | else | |
44dc733c | 175 | fieldstart = outp + bytesperline; |
ad0ebb96 | 176 | |
44dc733c MCC |
177 | linesdone = dma_q->pos / bytesperline; |
178 | currlinedone = dma_q->pos % bytesperline; | |
179 | offset = linesdone * bytesperline * 2 + currlinedone; | |
ad0ebb96 | 180 | startwrite = fieldstart + offset; |
44dc733c | 181 | lencopy = bytesperline - currlinedone; |
ad0ebb96 MCC |
182 | lencopy = lencopy > remain ? remain : lencopy; |
183 | ||
f245e549 | 184 | if ((char *)startwrite + lencopy > (char *)outp + buf->vb.size) { |
ea8df7e0 | 185 | em28xx_isocdbg("Overflow of %zi bytes past buffer end (1)\n", |
f245e549 MCC |
186 | ((char *)startwrite + lencopy) - |
187 | ((char *)outp + buf->vb.size)); | |
188 | lencopy = remain = (char *)outp + buf->vb.size - (char *)startwrite; | |
d7aa8020 | 189 | } |
e0fadfd3 AT |
190 | if (lencopy <= 0) |
191 | return; | |
d7aa8020 | 192 | memcpy(startwrite, startread, lencopy); |
ad0ebb96 MCC |
193 | |
194 | remain -= lencopy; | |
195 | ||
196 | while (remain > 0) { | |
44dc733c | 197 | startwrite += lencopy + bytesperline; |
ad0ebb96 | 198 | startread += lencopy; |
44dc733c | 199 | if (bytesperline > remain) |
ad0ebb96 MCC |
200 | lencopy = remain; |
201 | else | |
44dc733c | 202 | lencopy = bytesperline; |
ad0ebb96 | 203 | |
f245e549 | 204 | if ((char *)startwrite + lencopy > (char *)outp + buf->vb.size) { |
ea8df7e0 | 205 | em28xx_isocdbg("Overflow of %zi bytes past buffer end (2)\n", |
f245e549 MCC |
206 | ((char *)startwrite + lencopy) - |
207 | ((char *)outp + buf->vb.size)); | |
208 | lencopy = remain = (char *)outp + buf->vb.size - | |
209 | (char *)startwrite; | |
d7aa8020 | 210 | } |
f245e549 MCC |
211 | if (lencopy <= 0) |
212 | break; | |
d7aa8020 AT |
213 | |
214 | memcpy(startwrite, startread, lencopy); | |
ad0ebb96 MCC |
215 | |
216 | remain -= lencopy; | |
217 | } | |
218 | ||
219 | dma_q->pos += len; | |
220 | } | |
221 | ||
f245e549 | 222 | static inline void print_err_status(struct em28xx *dev, |
ad0ebb96 MCC |
223 | int packet, int status) |
224 | { | |
225 | char *errmsg = "Unknown"; | |
226 | ||
f245e549 | 227 | switch (status) { |
ad0ebb96 MCC |
228 | case -ENOENT: |
229 | errmsg = "unlinked synchronuously"; | |
230 | break; | |
231 | case -ECONNRESET: | |
232 | errmsg = "unlinked asynchronuously"; | |
233 | break; | |
234 | case -ENOSR: | |
235 | errmsg = "Buffer error (overrun)"; | |
236 | break; | |
237 | case -EPIPE: | |
238 | errmsg = "Stalled (device not responding)"; | |
239 | break; | |
240 | case -EOVERFLOW: | |
241 | errmsg = "Babble (bad cable?)"; | |
242 | break; | |
243 | case -EPROTO: | |
244 | errmsg = "Bit-stuff error (bad cable?)"; | |
245 | break; | |
246 | case -EILSEQ: | |
247 | errmsg = "CRC/Timeout (could be anything)"; | |
248 | break; | |
249 | case -ETIME: | |
250 | errmsg = "Device does not respond"; | |
251 | break; | |
252 | } | |
f245e549 | 253 | if (packet < 0) { |
ad0ebb96 MCC |
254 | em28xx_isocdbg("URB status %d [%s].\n", status, errmsg); |
255 | } else { | |
256 | em28xx_isocdbg("URB packet %d, status %d [%s].\n", | |
257 | packet, status, errmsg); | |
258 | } | |
259 | } | |
260 | ||
261 | /* | |
262 | * video-buf generic routine to get the next available buffer | |
263 | */ | |
3b5fa928 | 264 | static inline void get_next_buf(struct em28xx_dmaqueue *dma_q, |
ad0ebb96 MCC |
265 | struct em28xx_buffer **buf) |
266 | { | |
267 | struct em28xx *dev = container_of(dma_q, struct em28xx, vidq); | |
dbecb44c | 268 | char *outp; |
ad0ebb96 | 269 | |
dbecb44c MCC |
270 | if (list_empty(&dma_q->active)) { |
271 | em28xx_isocdbg("No active queue to serve\n"); | |
dbecb44c MCC |
272 | dev->isoc_ctl.buf = NULL; |
273 | *buf = NULL; | |
3b5fa928 | 274 | return; |
dbecb44c MCC |
275 | } |
276 | ||
dbecb44c MCC |
277 | /* Get the next buffer */ |
278 | *buf = list_entry(dma_q->active.next, struct em28xx_buffer, vb.queue); | |
279 | ||
dbecb44c MCC |
280 | /* Cleans up buffer - Usefull for testing for frame/URB loss */ |
281 | outp = videobuf_to_vmalloc(&(*buf)->vb); | |
282 | memset(outp, 0, (*buf)->vb.size); | |
cb784724 MCC |
283 | |
284 | dev->isoc_ctl.buf = *buf; | |
285 | ||
3b5fa928 | 286 | return; |
ad0ebb96 MCC |
287 | } |
288 | ||
289 | /* | |
290 | * Controls the isoc copy of each urb packet | |
291 | */ | |
579f72e4 | 292 | static inline int em28xx_isoc_copy(struct em28xx *dev, struct urb *urb) |
ad0ebb96 | 293 | { |
d7aa8020 | 294 | struct em28xx_buffer *buf; |
ad0ebb96 | 295 | struct em28xx_dmaqueue *dma_q = urb->context; |
3b5fa928 | 296 | unsigned char *outp = NULL; |
ad0ebb96 | 297 | int i, len = 0, rc = 1; |
d7aa8020 | 298 | unsigned char *p; |
ad0ebb96 MCC |
299 | |
300 | if (!dev) | |
301 | return 0; | |
302 | ||
303 | if ((dev->state & DEV_DISCONNECTED) || (dev->state & DEV_MISCONFIGURED)) | |
304 | return 0; | |
305 | ||
f245e549 MCC |
306 | if (urb->status < 0) { |
307 | print_err_status(dev, -1, urb->status); | |
ad0ebb96 MCC |
308 | if (urb->status == -ENOENT) |
309 | return 0; | |
310 | } | |
311 | ||
3b5fa928 AT |
312 | buf = dev->isoc_ctl.buf; |
313 | if (buf != NULL) | |
314 | outp = videobuf_to_vmalloc(&buf->vb); | |
d7aa8020 | 315 | |
ad0ebb96 MCC |
316 | for (i = 0; i < urb->number_of_packets; i++) { |
317 | int status = urb->iso_frame_desc[i].status; | |
318 | ||
f245e549 MCC |
319 | if (status < 0) { |
320 | print_err_status(dev, i, status); | |
ad0ebb96 MCC |
321 | if (urb->iso_frame_desc[i].status != -EPROTO) |
322 | continue; | |
323 | } | |
324 | ||
f245e549 | 325 | len = urb->iso_frame_desc[i].actual_length - 4; |
ad0ebb96 MCC |
326 | |
327 | if (urb->iso_frame_desc[i].actual_length <= 0) { | |
d7aa8020 | 328 | /* em28xx_isocdbg("packet %d is empty",i); - spammy */ |
ad0ebb96 MCC |
329 | continue; |
330 | } | |
331 | if (urb->iso_frame_desc[i].actual_length > | |
332 | dev->max_pkt_size) { | |
333 | em28xx_isocdbg("packet bigger than packet size"); | |
334 | continue; | |
335 | } | |
336 | ||
337 | p = urb->transfer_buffer + urb->iso_frame_desc[i].offset; | |
ad0ebb96 MCC |
338 | |
339 | /* FIXME: incomplete buffer checks where removed to make | |
340 | logic simpler. Impacts of those changes should be evaluated | |
341 | */ | |
b4916f8c MCC |
342 | if (p[0] == 0x33 && p[1] == 0x95 && p[2] == 0x00) { |
343 | em28xx_isocdbg("VBI HEADER!!!\n"); | |
344 | /* FIXME: Should add vbi copy */ | |
345 | continue; | |
346 | } | |
d7aa8020 | 347 | if (p[0] == 0x22 && p[1] == 0x5a) { |
78bb3949 MCC |
348 | em28xx_isocdbg("Video frame %d, length=%i, %s\n", p[2], |
349 | len, (p[2] & 1)? "odd" : "even"); | |
d7aa8020 | 350 | |
3b5fa928 AT |
351 | if (!(p[2] & 1)) { |
352 | if (buf != NULL) | |
353 | buffer_filled(dev, dma_q, buf); | |
354 | get_next_buf(dma_q, &buf); | |
355 | if (buf == NULL) | |
356 | outp = NULL; | |
357 | else | |
358 | outp = videobuf_to_vmalloc(&buf->vb); | |
359 | } | |
360 | ||
361 | if (buf != NULL) { | |
362 | if (p[2] & 1) | |
363 | buf->top_field = 0; | |
364 | else | |
365 | buf->top_field = 1; | |
e0fadfd3 | 366 | } |
b4916f8c | 367 | |
ad0ebb96 | 368 | dma_q->pos = 0; |
ad0ebb96 | 369 | } |
3b5fa928 AT |
370 | if (buf != NULL) |
371 | em28xx_copy_video(dev, dma_q, buf, p, outp, len); | |
ad0ebb96 MCC |
372 | } |
373 | return rc; | |
374 | } | |
375 | ||
ad0ebb96 MCC |
376 | /* ------------------------------------------------------------------ |
377 | Videobuf operations | |
378 | ------------------------------------------------------------------*/ | |
379 | ||
380 | static int | |
381 | buffer_setup(struct videobuf_queue *vq, unsigned int *count, unsigned int *size) | |
382 | { | |
383 | struct em28xx_fh *fh = vq->priv_data; | |
d2d9fbfd MCC |
384 | struct em28xx *dev = fh->dev; |
385 | struct v4l2_frequency f; | |
ad0ebb96 | 386 | |
d7aa8020 | 387 | *size = 16 * fh->dev->width * fh->dev->height >> 3; |
ad0ebb96 MCC |
388 | if (0 == *count) |
389 | *count = EM28XX_DEF_BUF; | |
390 | ||
f245e549 MCC |
391 | if (*count < EM28XX_MIN_BUF) |
392 | *count = EM28XX_MIN_BUF; | |
ad0ebb96 | 393 | |
d2d9fbfd MCC |
394 | dev->mode = EM28XX_ANALOG_MODE; |
395 | ||
396 | /* Ask tuner to go to analog mode */ | |
6ea54d93 | 397 | memset(&f, 0, sizeof(f)); |
d2d9fbfd MCC |
398 | f.frequency = dev->ctl_freq; |
399 | ||
400 | em28xx_i2c_call_clients(dev, VIDIOC_S_FREQUENCY, &f); | |
401 | ||
ad0ebb96 MCC |
402 | return 0; |
403 | } | |
404 | ||
3b5fa928 | 405 | /* This is called *without* dev->slock held; please keep it that way */ |
ad0ebb96 MCC |
406 | static void free_buffer(struct videobuf_queue *vq, struct em28xx_buffer *buf) |
407 | { | |
3b5fa928 AT |
408 | struct em28xx_fh *fh = vq->priv_data; |
409 | struct em28xx *dev = fh->dev; | |
410 | unsigned long flags = 0; | |
ad0ebb96 MCC |
411 | if (in_interrupt()) |
412 | BUG(); | |
413 | ||
3b5fa928 AT |
414 | /* We used to wait for the buffer to finish here, but this didn't work |
415 | because, as we were keeping the state as VIDEOBUF_QUEUED, | |
416 | videobuf_queue_cancel marked it as finished for us. | |
417 | (Also, it could wedge forever if the hardware was misconfigured.) | |
418 | ||
419 | This should be safe; by the time we get here, the buffer isn't | |
420 | queued anymore. If we ever start marking the buffers as | |
421 | VIDEOBUF_ACTIVE, it won't be, though. | |
422 | */ | |
423 | spin_lock_irqsave(&dev->slock, flags); | |
424 | if (dev->isoc_ctl.buf == buf) | |
425 | dev->isoc_ctl.buf = NULL; | |
426 | spin_unlock_irqrestore(&dev->slock, flags); | |
427 | ||
ad0ebb96 MCC |
428 | videobuf_vmalloc_free(&buf->vb); |
429 | buf->vb.state = VIDEOBUF_NEEDS_INIT; | |
430 | } | |
431 | ||
432 | static int | |
433 | buffer_prepare(struct videobuf_queue *vq, struct videobuf_buffer *vb, | |
434 | enum v4l2_field field) | |
435 | { | |
436 | struct em28xx_fh *fh = vq->priv_data; | |
f245e549 | 437 | struct em28xx_buffer *buf = container_of(vb, struct em28xx_buffer, vb); |
ad0ebb96 MCC |
438 | struct em28xx *dev = fh->dev; |
439 | int rc = 0, urb_init = 0; | |
ad0ebb96 | 440 | |
ad0ebb96 MCC |
441 | /* FIXME: It assumes depth = 16 */ |
442 | /* The only currently supported format is 16 bits/pixel */ | |
d7aa8020 | 443 | buf->vb.size = 16 * dev->width * dev->height >> 3; |
ad0ebb96 MCC |
444 | |
445 | if (0 != buf->vb.baddr && buf->vb.bsize < buf->vb.size) | |
446 | return -EINVAL; | |
447 | ||
05612975 BP |
448 | buf->vb.width = dev->width; |
449 | buf->vb.height = dev->height; | |
450 | buf->vb.field = field; | |
ad0ebb96 MCC |
451 | |
452 | if (VIDEOBUF_NEEDS_INIT == buf->vb.state) { | |
d7aa8020 AT |
453 | rc = videobuf_iolock(vq, &buf->vb, NULL); |
454 | if (rc < 0) | |
ad0ebb96 | 455 | goto fail; |
ad0ebb96 MCC |
456 | } |
457 | ||
ad0ebb96 | 458 | if (!dev->isoc_ctl.num_bufs) |
f245e549 | 459 | urb_init = 1; |
ad0ebb96 MCC |
460 | |
461 | if (urb_init) { | |
579f72e4 AT |
462 | rc = em28xx_init_isoc(dev, EM28XX_NUM_PACKETS, |
463 | EM28XX_NUM_BUFS, dev->max_pkt_size, | |
464 | em28xx_isoc_copy, EM28XX_ANALOG_CAPTURE); | |
f245e549 | 465 | if (rc < 0) |
ad0ebb96 MCC |
466 | goto fail; |
467 | } | |
468 | ||
469 | buf->vb.state = VIDEOBUF_PREPARED; | |
470 | return 0; | |
471 | ||
472 | fail: | |
f245e549 | 473 | free_buffer(vq, buf); |
ad0ebb96 MCC |
474 | return rc; |
475 | } | |
476 | ||
477 | static void | |
478 | buffer_queue(struct videobuf_queue *vq, struct videobuf_buffer *vb) | |
479 | { | |
480 | struct em28xx_buffer *buf = container_of(vb, struct em28xx_buffer, vb); | |
481 | struct em28xx_fh *fh = vq->priv_data; | |
f245e549 | 482 | struct em28xx *dev = fh->dev; |
ad0ebb96 | 483 | struct em28xx_dmaqueue *vidq = &dev->vidq; |
ad0ebb96 | 484 | |
d7aa8020 AT |
485 | buf->vb.state = VIDEOBUF_QUEUED; |
486 | list_add_tail(&buf->vb.queue, &vidq->active); | |
487 | ||
ad0ebb96 MCC |
488 | } |
489 | ||
6ea54d93 DSL |
490 | static void buffer_release(struct videobuf_queue *vq, |
491 | struct videobuf_buffer *vb) | |
ad0ebb96 | 492 | { |
f245e549 | 493 | struct em28xx_buffer *buf = container_of(vb, struct em28xx_buffer, vb); |
ad0ebb96 | 494 | struct em28xx_fh *fh = vq->priv_data; |
f245e549 | 495 | struct em28xx *dev = (struct em28xx *)fh->dev; |
ad0ebb96 | 496 | |
d7aa8020 | 497 | em28xx_isocdbg("em28xx: called buffer_release\n"); |
ad0ebb96 | 498 | |
f245e549 | 499 | free_buffer(vq, buf); |
ad0ebb96 MCC |
500 | } |
501 | ||
502 | static struct videobuf_queue_ops em28xx_video_qops = { | |
503 | .buf_setup = buffer_setup, | |
504 | .buf_prepare = buffer_prepare, | |
505 | .buf_queue = buffer_queue, | |
506 | .buf_release = buffer_release, | |
507 | }; | |
a6c2ba28 | 508 | |
6ea54d93 | 509 | /********************* v4l2 interface **************************************/ |
a6c2ba28 | 510 | |
a6c2ba28 | 511 | /* |
3acf2809 | 512 | * em28xx_config() |
a6c2ba28 | 513 | * inits registers with sane defaults |
514 | */ | |
3acf2809 | 515 | static int em28xx_config(struct em28xx *dev) |
a6c2ba28 | 516 | { |
517 | ||
518 | /* Sets I2C speed to 100 KHz */ | |
2b2c93ac SS |
519 | if (!dev->is_em2800) |
520 | em28xx_write_regs_req(dev, 0x00, 0x06, "\x40", 1); | |
a6c2ba28 | 521 | |
522 | /* enable vbi capturing */ | |
e5589bef | 523 | |
6ea54d93 DSL |
524 | /* em28xx_write_regs_req(dev, 0x00, 0x0e, "\xC0", 1); audio register */ |
525 | /* em28xx_write_regs_req(dev, 0x00, 0x0f, "\x80", 1); clk register */ | |
526 | em28xx_write_regs_req(dev, 0x00, 0x11, "\x51", 1); | |
e5589bef | 527 | |
a6c2ba28 | 528 | dev->mute = 1; /* maybe not the right place... */ |
529 | dev->volume = 0x1f; | |
539c96d0 | 530 | |
3acf2809 MCC |
531 | em28xx_outfmt_set_yuv422(dev); |
532 | em28xx_colorlevels_set_default(dev); | |
533 | em28xx_compression_disable(dev); | |
a6c2ba28 | 534 | |
535 | return 0; | |
536 | } | |
537 | ||
538 | /* | |
3acf2809 | 539 | * em28xx_config_i2c() |
a6c2ba28 | 540 | * configure i2c attached devices |
541 | */ | |
943a4902 | 542 | static void em28xx_config_i2c(struct em28xx *dev) |
a6c2ba28 | 543 | { |
c7c0b34c HV |
544 | struct v4l2_routing route; |
545 | ||
546 | route.input = INPUT(dev->ctl_input)->vmux; | |
547 | route.output = 0; | |
663d1ba2 | 548 | em28xx_i2c_call_clients(dev, VIDIOC_INT_RESET, NULL); |
c7c0b34c | 549 | em28xx_i2c_call_clients(dev, VIDIOC_INT_S_VIDEO_ROUTING, &route); |
f5762e44 | 550 | em28xx_i2c_call_clients(dev, VIDIOC_STREAMON, NULL); |
a6c2ba28 | 551 | } |
552 | ||
eac94356 MCC |
553 | static void video_mux(struct em28xx *dev, int index) |
554 | { | |
c7c0b34c | 555 | struct v4l2_routing route; |
eac94356 | 556 | |
c7c0b34c HV |
557 | route.input = INPUT(index)->vmux; |
558 | route.output = 0; | |
eac94356 MCC |
559 | dev->ctl_input = index; |
560 | dev->ctl_ainput = INPUT(index)->amux; | |
561 | ||
c7c0b34c | 562 | em28xx_i2c_call_clients(dev, VIDIOC_INT_S_VIDEO_ROUTING, &route); |
eac94356 | 563 | |
eac94356 | 564 | if (dev->has_msp34xx) { |
6ea54d93 DSL |
565 | if (dev->i2s_speed) { |
566 | em28xx_i2c_call_clients(dev, VIDIOC_INT_I2S_CLOCK_FREQ, | |
567 | &dev->i2s_speed); | |
568 | } | |
2474ed44 | 569 | route.input = dev->ctl_ainput; |
07151724 | 570 | route.output = MSP_OUTPUT(MSP_SC_IN_DSP_SCART1); |
2474ed44 | 571 | /* Note: this is msp3400 specific */ |
6ea54d93 DSL |
572 | em28xx_i2c_call_clients(dev, VIDIOC_INT_S_AUDIO_ROUTING, |
573 | &route); | |
eac94356 | 574 | } |
539c96d0 | 575 | |
00b8730f | 576 | em28xx_audio_analog_set(dev); |
eac94356 MCC |
577 | } |
578 | ||
a225452e MCC |
579 | /* Usage lock check functions */ |
580 | static int res_get(struct em28xx_fh *fh) | |
581 | { | |
582 | struct em28xx *dev = fh->dev; | |
583 | int rc = 0; | |
584 | ||
585 | /* This instance already has stream_on */ | |
586 | if (fh->stream_on) | |
587 | return rc; | |
588 | ||
a225452e | 589 | if (dev->stream_on) |
e74153d4 | 590 | return -EINVAL; |
a225452e | 591 | |
e74153d4 MCC |
592 | mutex_lock(&dev->lock); |
593 | dev->stream_on = 1; | |
594 | fh->stream_on = 1; | |
a225452e MCC |
595 | mutex_unlock(&dev->lock); |
596 | return rc; | |
597 | } | |
598 | ||
599 | static int res_check(struct em28xx_fh *fh) | |
600 | { | |
601 | return (fh->stream_on); | |
602 | } | |
603 | ||
604 | static void res_free(struct em28xx_fh *fh) | |
605 | { | |
606 | struct em28xx *dev = fh->dev; | |
607 | ||
608 | mutex_lock(&dev->lock); | |
609 | fh->stream_on = 0; | |
610 | dev->stream_on = 0; | |
611 | mutex_unlock(&dev->lock); | |
612 | } | |
613 | ||
195a4ef6 MCC |
614 | /* |
615 | * em28xx_get_ctrl() | |
616 | * return the current saturation, brightness or contrast, mute state | |
617 | */ | |
618 | static int em28xx_get_ctrl(struct em28xx *dev, struct v4l2_control *ctrl) | |
619 | { | |
620 | switch (ctrl->id) { | |
621 | case V4L2_CID_AUDIO_MUTE: | |
622 | ctrl->value = dev->mute; | |
623 | return 0; | |
624 | case V4L2_CID_AUDIO_VOLUME: | |
625 | ctrl->value = dev->volume; | |
626 | return 0; | |
627 | default: | |
628 | return -EINVAL; | |
a6c2ba28 | 629 | } |
195a4ef6 | 630 | } |
a6c2ba28 | 631 | |
195a4ef6 MCC |
632 | /* |
633 | * em28xx_set_ctrl() | |
634 | * mute or set new saturation, brightness or contrast | |
635 | */ | |
636 | static int em28xx_set_ctrl(struct em28xx *dev, const struct v4l2_control *ctrl) | |
637 | { | |
638 | switch (ctrl->id) { | |
639 | case V4L2_CID_AUDIO_MUTE: | |
640 | if (ctrl->value != dev->mute) { | |
641 | dev->mute = ctrl->value; | |
195a4ef6 MCC |
642 | return em28xx_audio_analog_set(dev); |
643 | } | |
644 | return 0; | |
645 | case V4L2_CID_AUDIO_VOLUME: | |
646 | dev->volume = ctrl->value; | |
647 | return em28xx_audio_analog_set(dev); | |
648 | default: | |
649 | return -EINVAL; | |
650 | } | |
651 | } | |
a6c2ba28 | 652 | |
195a4ef6 MCC |
653 | static int check_dev(struct em28xx *dev) |
654 | { | |
655 | if (dev->state & DEV_DISCONNECTED) { | |
656 | em28xx_errdev("v4l2 ioctl: device not present\n"); | |
657 | return -ENODEV; | |
e5589bef | 658 | } |
a6c2ba28 | 659 | |
195a4ef6 MCC |
660 | if (dev->state & DEV_MISCONFIGURED) { |
661 | em28xx_errdev("v4l2 ioctl: device is misconfigured; " | |
662 | "close and open it again\n"); | |
663 | return -EIO; | |
664 | } | |
665 | return 0; | |
666 | } | |
a6c2ba28 | 667 | |
195a4ef6 MCC |
668 | static void get_scale(struct em28xx *dev, |
669 | unsigned int width, unsigned int height, | |
670 | unsigned int *hscale, unsigned int *vscale) | |
671 | { | |
672 | unsigned int maxw = norm_maxw(dev); | |
673 | unsigned int maxh = norm_maxh(dev); | |
674 | ||
675 | *hscale = (((unsigned long)maxw) << 12) / width - 4096L; | |
676 | if (*hscale >= 0x4000) | |
677 | *hscale = 0x3fff; | |
678 | ||
679 | *vscale = (((unsigned long)maxh) << 12) / height - 4096L; | |
680 | if (*vscale >= 0x4000) | |
681 | *vscale = 0x3fff; | |
a6c2ba28 | 682 | } |
683 | ||
195a4ef6 MCC |
684 | /* ------------------------------------------------------------------ |
685 | IOCTL vidioc handling | |
686 | ------------------------------------------------------------------*/ | |
687 | ||
688 | static int vidioc_g_fmt_cap(struct file *file, void *priv, | |
689 | struct v4l2_format *f) | |
a6c2ba28 | 690 | { |
195a4ef6 MCC |
691 | struct em28xx_fh *fh = priv; |
692 | struct em28xx *dev = fh->dev; | |
a6c2ba28 | 693 | |
195a4ef6 | 694 | mutex_lock(&dev->lock); |
e5589bef | 695 | |
195a4ef6 MCC |
696 | f->fmt.pix.width = dev->width; |
697 | f->fmt.pix.height = dev->height; | |
698 | f->fmt.pix.pixelformat = V4L2_PIX_FMT_YUYV; | |
44dc733c MCC |
699 | f->fmt.pix.bytesperline = dev->width * 2; |
700 | f->fmt.pix.sizeimage = f->fmt.pix.bytesperline * dev->height; | |
195a4ef6 | 701 | f->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M; |
e5589bef | 702 | |
195a4ef6 MCC |
703 | /* FIXME: TOP? NONE? BOTTOM? ALTENATE? */ |
704 | f->fmt.pix.field = dev->interlaced ? | |
705 | V4L2_FIELD_INTERLACED : V4L2_FIELD_TOP; | |
e5589bef | 706 | |
195a4ef6 MCC |
707 | mutex_unlock(&dev->lock); |
708 | return 0; | |
a6c2ba28 | 709 | } |
710 | ||
195a4ef6 MCC |
711 | static int vidioc_try_fmt_cap(struct file *file, void *priv, |
712 | struct v4l2_format *f) | |
a6c2ba28 | 713 | { |
195a4ef6 MCC |
714 | struct em28xx_fh *fh = priv; |
715 | struct em28xx *dev = fh->dev; | |
716 | int width = f->fmt.pix.width; | |
717 | int height = f->fmt.pix.height; | |
718 | unsigned int maxw = norm_maxw(dev); | |
719 | unsigned int maxh = norm_maxh(dev); | |
720 | unsigned int hscale, vscale; | |
721 | ||
722 | /* width must even because of the YUYV format | |
723 | height must be even because of interlacing */ | |
724 | height &= 0xfffe; | |
725 | width &= 0xfffe; | |
a6c2ba28 | 726 | |
195a4ef6 MCC |
727 | if (height < 32) |
728 | height = 32; | |
729 | if (height > maxh) | |
730 | height = maxh; | |
731 | if (width < 48) | |
732 | width = 48; | |
733 | if (width > maxw) | |
734 | width = maxw; | |
a6c2ba28 | 735 | |
195a4ef6 | 736 | mutex_lock(&dev->lock); |
a225452e | 737 | |
195a4ef6 MCC |
738 | if (dev->is_em2800) { |
739 | /* the em2800 can only scale down to 50% */ | |
740 | if (height % (maxh / 2)) | |
741 | height = maxh; | |
742 | if (width % (maxw / 2)) | |
743 | width = maxw; | |
744 | /* according to empiatech support */ | |
745 | /* the MaxPacketSize is to small to support */ | |
746 | /* framesizes larger than 640x480 @ 30 fps */ | |
747 | /* or 640x576 @ 25 fps. As this would cut */ | |
748 | /* of a part of the image we prefer */ | |
749 | /* 360x576 or 360x480 for now */ | |
750 | if (width == maxw && height == maxh) | |
751 | width /= 2; | |
752 | } | |
a225452e | 753 | |
195a4ef6 | 754 | get_scale(dev, width, height, &hscale, &vscale); |
a6c2ba28 | 755 | |
195a4ef6 MCC |
756 | width = (((unsigned long)maxw) << 12) / (hscale + 4096L); |
757 | height = (((unsigned long)maxh) << 12) / (vscale + 4096L); | |
a6c2ba28 | 758 | |
195a4ef6 MCC |
759 | f->fmt.pix.width = width; |
760 | f->fmt.pix.height = height; | |
761 | f->fmt.pix.pixelformat = V4L2_PIX_FMT_YUYV; | |
762 | f->fmt.pix.bytesperline = width * 2; | |
763 | f->fmt.pix.sizeimage = width * 2 * height; | |
764 | f->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M; | |
765 | f->fmt.pix.field = V4L2_FIELD_INTERLACED; | |
a6c2ba28 | 766 | |
3593cab5 | 767 | mutex_unlock(&dev->lock); |
a6c2ba28 | 768 | return 0; |
769 | } | |
770 | ||
195a4ef6 MCC |
771 | static int vidioc_s_fmt_cap(struct file *file, void *priv, |
772 | struct v4l2_format *f) | |
a6c2ba28 | 773 | { |
195a4ef6 MCC |
774 | struct em28xx_fh *fh = priv; |
775 | struct em28xx *dev = fh->dev; | |
ad0ebb96 | 776 | int rc; |
a6c2ba28 | 777 | |
195a4ef6 MCC |
778 | rc = check_dev(dev); |
779 | if (rc < 0) | |
780 | return rc; | |
a225452e | 781 | |
195a4ef6 | 782 | vidioc_try_fmt_cap(file, priv, f); |
a225452e | 783 | |
5a80415b SS |
784 | mutex_lock(&dev->lock); |
785 | ||
05612975 BP |
786 | if (videobuf_queue_is_busy(&fh->vb_vidq)) { |
787 | em28xx_errdev("%s queue busy\n", __func__); | |
788 | rc = -EBUSY; | |
789 | goto out; | |
790 | } | |
791 | ||
0ea13e6e AT |
792 | if (dev->stream_on && !fh->stream_on) { |
793 | em28xx_errdev("%s device in use by another fh\n", __func__); | |
794 | rc = -EBUSY; | |
795 | goto out; | |
796 | } | |
797 | ||
195a4ef6 MCC |
798 | /* set new image size */ |
799 | dev->width = f->fmt.pix.width; | |
800 | dev->height = f->fmt.pix.height; | |
195a4ef6 | 801 | get_scale(dev, dev->width, dev->height, &dev->hscale, &dev->vscale); |
a6c2ba28 | 802 | |
195a4ef6 | 803 | em28xx_set_alternate(dev); |
195a4ef6 | 804 | em28xx_resolution_set(dev); |
195a4ef6 | 805 | |
05612975 BP |
806 | rc = 0; |
807 | ||
808 | out: | |
195a4ef6 | 809 | mutex_unlock(&dev->lock); |
05612975 | 810 | return rc; |
195a4ef6 MCC |
811 | } |
812 | ||
6ea54d93 | 813 | static int vidioc_s_std(struct file *file, void *priv, v4l2_std_id * norm) |
195a4ef6 MCC |
814 | { |
815 | struct em28xx_fh *fh = priv; | |
816 | struct em28xx *dev = fh->dev; | |
817 | struct v4l2_format f; | |
195a4ef6 MCC |
818 | int rc; |
819 | ||
820 | rc = check_dev(dev); | |
821 | if (rc < 0) | |
822 | return rc; | |
823 | ||
195a4ef6 | 824 | mutex_lock(&dev->lock); |
7d497f8a | 825 | dev->norm = *norm; |
195a4ef6 | 826 | mutex_unlock(&dev->lock); |
a6c2ba28 | 827 | |
195a4ef6 MCC |
828 | /* Adjusts width/height, if needed */ |
829 | f.fmt.pix.width = dev->width; | |
830 | f.fmt.pix.height = dev->height; | |
831 | vidioc_try_fmt_cap(file, priv, &f); | |
a6c2ba28 | 832 | |
195a4ef6 | 833 | mutex_lock(&dev->lock); |
a6c2ba28 | 834 | |
195a4ef6 MCC |
835 | /* set new image size */ |
836 | dev->width = f.fmt.pix.width; | |
837 | dev->height = f.fmt.pix.height; | |
195a4ef6 | 838 | get_scale(dev, dev->width, dev->height, &dev->hscale, &dev->vscale); |
a6c2ba28 | 839 | |
195a4ef6 | 840 | em28xx_resolution_set(dev); |
7d497f8a | 841 | em28xx_i2c_call_clients(dev, VIDIOC_S_STD, &dev->norm); |
a6c2ba28 | 842 | |
195a4ef6 MCC |
843 | mutex_unlock(&dev->lock); |
844 | return 0; | |
845 | } | |
9e31ced8 | 846 | |
195a4ef6 MCC |
847 | static const char *iname[] = { |
848 | [EM28XX_VMUX_COMPOSITE1] = "Composite1", | |
849 | [EM28XX_VMUX_COMPOSITE2] = "Composite2", | |
850 | [EM28XX_VMUX_COMPOSITE3] = "Composite3", | |
851 | [EM28XX_VMUX_COMPOSITE4] = "Composite4", | |
852 | [EM28XX_VMUX_SVIDEO] = "S-Video", | |
853 | [EM28XX_VMUX_TELEVISION] = "Television", | |
854 | [EM28XX_VMUX_CABLE] = "Cable TV", | |
855 | [EM28XX_VMUX_DVB] = "DVB", | |
856 | [EM28XX_VMUX_DEBUG] = "for debug only", | |
857 | }; | |
9e31ced8 | 858 | |
195a4ef6 MCC |
859 | static int vidioc_enum_input(struct file *file, void *priv, |
860 | struct v4l2_input *i) | |
861 | { | |
862 | struct em28xx_fh *fh = priv; | |
863 | struct em28xx *dev = fh->dev; | |
864 | unsigned int n; | |
9e31ced8 | 865 | |
195a4ef6 MCC |
866 | n = i->index; |
867 | if (n >= MAX_EM28XX_INPUT) | |
868 | return -EINVAL; | |
869 | if (0 == INPUT(n)->type) | |
870 | return -EINVAL; | |
9e31ced8 | 871 | |
195a4ef6 MCC |
872 | i->index = n; |
873 | i->type = V4L2_INPUT_TYPE_CAMERA; | |
a6c2ba28 | 874 | |
195a4ef6 | 875 | strcpy(i->name, iname[INPUT(n)->type]); |
a6c2ba28 | 876 | |
195a4ef6 MCC |
877 | if ((EM28XX_VMUX_TELEVISION == INPUT(n)->type) || |
878 | (EM28XX_VMUX_CABLE == INPUT(n)->type)) | |
879 | i->type = V4L2_INPUT_TYPE_TUNER; | |
880 | ||
7d497f8a | 881 | i->std = dev->vdev->tvnorms; |
195a4ef6 MCC |
882 | |
883 | return 0; | |
a6c2ba28 | 884 | } |
885 | ||
195a4ef6 | 886 | static int vidioc_g_input(struct file *file, void *priv, unsigned int *i) |
a6c2ba28 | 887 | { |
195a4ef6 MCC |
888 | struct em28xx_fh *fh = priv; |
889 | struct em28xx *dev = fh->dev; | |
a6c2ba28 | 890 | |
195a4ef6 MCC |
891 | *i = dev->ctl_input; |
892 | ||
893 | return 0; | |
894 | } | |
895 | ||
896 | static int vidioc_s_input(struct file *file, void *priv, unsigned int i) | |
897 | { | |
898 | struct em28xx_fh *fh = priv; | |
899 | struct em28xx *dev = fh->dev; | |
900 | int rc; | |
901 | ||
902 | rc = check_dev(dev); | |
903 | if (rc < 0) | |
904 | return rc; | |
905 | ||
906 | if (i >= MAX_EM28XX_INPUT) | |
907 | return -EINVAL; | |
908 | if (0 == INPUT(i)->type) | |
909 | return -EINVAL; | |
a225452e | 910 | |
5a80415b | 911 | mutex_lock(&dev->lock); |
a6c2ba28 | 912 | |
195a4ef6 MCC |
913 | video_mux(dev, i); |
914 | ||
915 | mutex_unlock(&dev->lock); | |
916 | return 0; | |
917 | } | |
918 | ||
919 | static int vidioc_g_audio(struct file *file, void *priv, struct v4l2_audio *a) | |
920 | { | |
921 | struct em28xx_fh *fh = priv; | |
922 | struct em28xx *dev = fh->dev; | |
923 | unsigned int index = a->index; | |
924 | ||
925 | if (a->index > 1) | |
926 | return -EINVAL; | |
927 | ||
928 | index = dev->ctl_ainput; | |
929 | ||
6ea54d93 | 930 | if (index == 0) |
195a4ef6 | 931 | strcpy(a->name, "Television"); |
6ea54d93 | 932 | else |
195a4ef6 | 933 | strcpy(a->name, "Line In"); |
6ea54d93 | 934 | |
195a4ef6 MCC |
935 | a->capability = V4L2_AUDCAP_STEREO; |
936 | a->index = index; | |
937 | ||
938 | return 0; | |
939 | } | |
940 | ||
941 | static int vidioc_s_audio(struct file *file, void *priv, struct v4l2_audio *a) | |
942 | { | |
943 | struct em28xx_fh *fh = priv; | |
944 | struct em28xx *dev = fh->dev; | |
945 | ||
946 | if (a->index != dev->ctl_ainput) | |
947 | return -EINVAL; | |
948 | ||
949 | return 0; | |
950 | } | |
951 | ||
952 | static int vidioc_queryctrl(struct file *file, void *priv, | |
953 | struct v4l2_queryctrl *qc) | |
954 | { | |
955 | struct em28xx_fh *fh = priv; | |
956 | struct em28xx *dev = fh->dev; | |
957 | int id = qc->id; | |
958 | int i; | |
959 | int rc; | |
960 | ||
961 | rc = check_dev(dev); | |
962 | if (rc < 0) | |
963 | return rc; | |
964 | ||
965 | memset(qc, 0, sizeof(*qc)); | |
966 | ||
967 | qc->id = id; | |
968 | ||
969 | if (!dev->has_msp34xx) { | |
970 | for (i = 0; i < ARRAY_SIZE(em28xx_qctrl); i++) { | |
971 | if (qc->id && qc->id == em28xx_qctrl[i].id) { | |
972 | memcpy(qc, &(em28xx_qctrl[i]), sizeof(*qc)); | |
973 | return 0; | |
a6c2ba28 | 974 | } |
975 | } | |
195a4ef6 MCC |
976 | } |
977 | mutex_lock(&dev->lock); | |
978 | em28xx_i2c_call_clients(dev, VIDIOC_QUERYCTRL, qc); | |
979 | mutex_unlock(&dev->lock); | |
a6c2ba28 | 980 | |
195a4ef6 MCC |
981 | if (qc->type) |
982 | return 0; | |
983 | else | |
984 | return -EINVAL; | |
985 | } | |
a6c2ba28 | 986 | |
195a4ef6 MCC |
987 | static int vidioc_g_ctrl(struct file *file, void *priv, |
988 | struct v4l2_control *ctrl) | |
989 | { | |
990 | struct em28xx_fh *fh = priv; | |
991 | struct em28xx *dev = fh->dev; | |
992 | int rc; | |
a6c2ba28 | 993 | |
195a4ef6 MCC |
994 | rc = check_dev(dev); |
995 | if (rc < 0) | |
996 | return rc; | |
997 | mutex_lock(&dev->lock); | |
a6c2ba28 | 998 | |
195a4ef6 MCC |
999 | if (!dev->has_msp34xx) |
1000 | rc = em28xx_get_ctrl(dev, ctrl); | |
1001 | else | |
1002 | rc = -EINVAL; | |
1003 | ||
1004 | if (rc == -EINVAL) { | |
1005 | em28xx_i2c_call_clients(dev, VIDIOC_G_CTRL, ctrl); | |
1006 | rc = 0; | |
1007 | } | |
1008 | ||
1009 | mutex_unlock(&dev->lock); | |
1010 | return rc; | |
1011 | } | |
1012 | ||
1013 | static int vidioc_s_ctrl(struct file *file, void *priv, | |
1014 | struct v4l2_control *ctrl) | |
1015 | { | |
1016 | struct em28xx_fh *fh = priv; | |
1017 | struct em28xx *dev = fh->dev; | |
1018 | u8 i; | |
1019 | int rc; | |
1020 | ||
1021 | rc = check_dev(dev); | |
1022 | if (rc < 0) | |
1023 | return rc; | |
1024 | ||
1025 | mutex_lock(&dev->lock); | |
1026 | ||
1027 | if (dev->has_msp34xx) | |
1028 | em28xx_i2c_call_clients(dev, VIDIOC_S_CTRL, ctrl); | |
1029 | else { | |
1030 | rc = 1; | |
1031 | for (i = 0; i < ARRAY_SIZE(em28xx_qctrl); i++) { | |
1032 | if (ctrl->id == em28xx_qctrl[i].id) { | |
1033 | if (ctrl->value < em28xx_qctrl[i].minimum || | |
1034 | ctrl->value > em28xx_qctrl[i].maximum) { | |
1035 | rc = -ERANGE; | |
1036 | break; | |
1037 | } | |
1038 | ||
1039 | rc = em28xx_set_ctrl(dev, ctrl); | |
1040 | break; | |
1041 | } | |
a6c2ba28 | 1042 | } |
1043 | } | |
1044 | ||
195a4ef6 MCC |
1045 | /* Control not found - try to send it to the attached devices */ |
1046 | if (rc == 1) { | |
1047 | em28xx_i2c_call_clients(dev, VIDIOC_S_CTRL, ctrl); | |
1048 | rc = 0; | |
1049 | } | |
1050 | ||
5a80415b | 1051 | mutex_unlock(&dev->lock); |
195a4ef6 | 1052 | return rc; |
a6c2ba28 | 1053 | } |
1054 | ||
195a4ef6 MCC |
1055 | static int vidioc_g_tuner(struct file *file, void *priv, |
1056 | struct v4l2_tuner *t) | |
a6c2ba28 | 1057 | { |
195a4ef6 MCC |
1058 | struct em28xx_fh *fh = priv; |
1059 | struct em28xx *dev = fh->dev; | |
1060 | int rc; | |
1061 | ||
1062 | rc = check_dev(dev); | |
1063 | if (rc < 0) | |
1064 | return rc; | |
1065 | ||
1066 | if (0 != t->index) | |
1067 | return -EINVAL; | |
1068 | ||
1069 | strcpy(t->name, "Tuner"); | |
1070 | ||
1071 | mutex_lock(&dev->lock); | |
1072 | ||
1073 | em28xx_i2c_call_clients(dev, VIDIOC_G_TUNER, t); | |
1074 | ||
1075 | mutex_unlock(&dev->lock); | |
1076 | return 0; | |
a6c2ba28 | 1077 | } |
1078 | ||
195a4ef6 MCC |
1079 | static int vidioc_s_tuner(struct file *file, void *priv, |
1080 | struct v4l2_tuner *t) | |
a6c2ba28 | 1081 | { |
195a4ef6 MCC |
1082 | struct em28xx_fh *fh = priv; |
1083 | struct em28xx *dev = fh->dev; | |
1084 | int rc; | |
63337dd3 | 1085 | |
195a4ef6 MCC |
1086 | rc = check_dev(dev); |
1087 | if (rc < 0) | |
1088 | return rc; | |
1089 | ||
1090 | if (0 != t->index) | |
1091 | return -EINVAL; | |
1092 | ||
1093 | mutex_lock(&dev->lock); | |
1094 | ||
1095 | em28xx_i2c_call_clients(dev, VIDIOC_S_TUNER, t); | |
1096 | ||
1097 | mutex_unlock(&dev->lock); | |
1098 | return 0; | |
a6c2ba28 | 1099 | } |
1100 | ||
195a4ef6 MCC |
1101 | static int vidioc_g_frequency(struct file *file, void *priv, |
1102 | struct v4l2_frequency *f) | |
1103 | { | |
1104 | struct em28xx_fh *fh = priv; | |
1105 | struct em28xx *dev = fh->dev; | |
a6c2ba28 | 1106 | |
0be43754 | 1107 | f->type = fh->radio ? V4L2_TUNER_RADIO : V4L2_TUNER_ANALOG_TV; |
195a4ef6 MCC |
1108 | f->frequency = dev->ctl_freq; |
1109 | ||
1110 | return 0; | |
1111 | } | |
1112 | ||
1113 | static int vidioc_s_frequency(struct file *file, void *priv, | |
1114 | struct v4l2_frequency *f) | |
a6c2ba28 | 1115 | { |
195a4ef6 MCC |
1116 | struct em28xx_fh *fh = priv; |
1117 | struct em28xx *dev = fh->dev; | |
1118 | int rc; | |
9c75541f | 1119 | |
195a4ef6 MCC |
1120 | rc = check_dev(dev); |
1121 | if (rc < 0) | |
1122 | return rc; | |
1123 | ||
1124 | if (0 != f->tuner) | |
1125 | return -EINVAL; | |
1126 | ||
0be43754 MCC |
1127 | if (unlikely(0 == fh->radio && f->type != V4L2_TUNER_ANALOG_TV)) |
1128 | return -EINVAL; | |
1129 | if (unlikely(1 == fh->radio && f->type != V4L2_TUNER_RADIO)) | |
195a4ef6 | 1130 | return -EINVAL; |
a225452e MCC |
1131 | |
1132 | mutex_lock(&dev->lock); | |
a3a048ce | 1133 | |
195a4ef6 MCC |
1134 | dev->ctl_freq = f->frequency; |
1135 | em28xx_i2c_call_clients(dev, VIDIOC_S_FREQUENCY, f); | |
a6c2ba28 | 1136 | |
195a4ef6 MCC |
1137 | mutex_unlock(&dev->lock); |
1138 | return 0; | |
1139 | } | |
a6c2ba28 | 1140 | |
1e7ad56f MCC |
1141 | #ifdef CONFIG_VIDEO_ADV_DEBUG |
1142 | static int em28xx_reg_len(int reg) | |
1143 | { | |
1144 | switch (reg) { | |
1145 | case AC97LSB_REG: | |
1146 | case HSCALELOW_REG: | |
1147 | case VSCALELOW_REG: | |
1e7ad56f MCC |
1148 | return 2; |
1149 | default: | |
1150 | return 1; | |
1151 | } | |
1152 | } | |
1153 | ||
1154 | static int vidioc_g_register(struct file *file, void *priv, | |
1155 | struct v4l2_register *reg) | |
1156 | { | |
1157 | struct em28xx_fh *fh = priv; | |
1158 | struct em28xx *dev = fh->dev; | |
1159 | int ret; | |
1160 | ||
1161 | if (!v4l2_chip_match_host(reg->match_type, reg->match_chip)) | |
1162 | return -EINVAL; | |
1163 | ||
1164 | if (em28xx_reg_len(reg->reg) == 1) { | |
1165 | ret = em28xx_read_reg(dev, reg->reg); | |
1166 | if (ret < 0) | |
1167 | return ret; | |
1168 | ||
1169 | reg->val = ret; | |
1170 | } else { | |
0df8130f | 1171 | u64 val = 0; |
1e7ad56f MCC |
1172 | ret = em28xx_read_reg_req_len(dev, USB_REQ_GET_STATUS, |
1173 | reg->reg, (char *)&val, 2); | |
1174 | if (ret < 0) | |
1175 | return ret; | |
1176 | ||
0df8130f | 1177 | reg->val = cpu_to_le64((__u64)val); |
1e7ad56f MCC |
1178 | } |
1179 | ||
1180 | return 0; | |
1181 | } | |
1182 | ||
1183 | static int vidioc_s_register(struct file *file, void *priv, | |
1184 | struct v4l2_register *reg) | |
1185 | { | |
1186 | struct em28xx_fh *fh = priv; | |
1187 | struct em28xx *dev = fh->dev; | |
0df8130f | 1188 | u64 buf; |
1e7ad56f | 1189 | |
0df8130f | 1190 | buf = le64_to_cpu((__u64)reg->val); |
1e7ad56f MCC |
1191 | |
1192 | return em28xx_write_regs(dev, reg->reg, (char *)&buf, | |
1193 | em28xx_reg_len(reg->reg)); | |
1194 | } | |
1195 | #endif | |
1196 | ||
1197 | ||
195a4ef6 MCC |
1198 | static int vidioc_cropcap(struct file *file, void *priv, |
1199 | struct v4l2_cropcap *cc) | |
1200 | { | |
1201 | struct em28xx_fh *fh = priv; | |
1202 | struct em28xx *dev = fh->dev; | |
1203 | ||
1204 | if (cc->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) | |
a6c2ba28 | 1205 | return -EINVAL; |
a6c2ba28 | 1206 | |
195a4ef6 MCC |
1207 | cc->bounds.left = 0; |
1208 | cc->bounds.top = 0; | |
1209 | cc->bounds.width = dev->width; | |
1210 | cc->bounds.height = dev->height; | |
1211 | cc->defrect = cc->bounds; | |
1212 | cc->pixelaspect.numerator = 54; /* 4:3 FIXME: remove magic numbers */ | |
1213 | cc->pixelaspect.denominator = 59; | |
1214 | ||
1215 | return 0; | |
1216 | } | |
1217 | ||
1218 | static int vidioc_streamon(struct file *file, void *priv, | |
1219 | enum v4l2_buf_type type) | |
1220 | { | |
1221 | struct em28xx_fh *fh = priv; | |
1222 | struct em28xx *dev = fh->dev; | |
1223 | int rc; | |
1224 | ||
1225 | rc = check_dev(dev); | |
1226 | if (rc < 0) | |
1227 | return rc; | |
1228 | ||
195a4ef6 | 1229 | |
ad0ebb96 | 1230 | if (unlikely(res_get(fh) < 0)) |
195a4ef6 | 1231 | return -EBUSY; |
a6c2ba28 | 1232 | |
ad0ebb96 | 1233 | return (videobuf_streamon(&fh->vb_vidq)); |
195a4ef6 MCC |
1234 | } |
1235 | ||
1236 | static int vidioc_streamoff(struct file *file, void *priv, | |
1237 | enum v4l2_buf_type type) | |
1238 | { | |
1239 | struct em28xx_fh *fh = priv; | |
1240 | struct em28xx *dev = fh->dev; | |
1241 | int rc; | |
1242 | ||
1243 | rc = check_dev(dev); | |
1244 | if (rc < 0) | |
1245 | return rc; | |
1246 | ||
ad0ebb96 MCC |
1247 | if (fh->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) |
1248 | return -EINVAL; | |
1249 | if (type != fh->type) | |
195a4ef6 MCC |
1250 | return -EINVAL; |
1251 | ||
ad0ebb96 MCC |
1252 | videobuf_streamoff(&fh->vb_vidq); |
1253 | res_free(fh); | |
a6c2ba28 | 1254 | |
a6c2ba28 | 1255 | return 0; |
1256 | } | |
1257 | ||
195a4ef6 MCC |
1258 | static int vidioc_querycap(struct file *file, void *priv, |
1259 | struct v4l2_capability *cap) | |
a6c2ba28 | 1260 | { |
195a4ef6 MCC |
1261 | struct em28xx_fh *fh = priv; |
1262 | struct em28xx *dev = fh->dev; | |
1263 | ||
1264 | strlcpy(cap->driver, "em28xx", sizeof(cap->driver)); | |
1265 | strlcpy(cap->card, em28xx_boards[dev->model].name, sizeof(cap->card)); | |
1266 | strlcpy(cap->bus_info, dev->udev->dev.bus_id, sizeof(cap->bus_info)); | |
1267 | ||
1268 | cap->version = EM28XX_VERSION_CODE; | |
1269 | ||
1270 | cap->capabilities = | |
1271 | V4L2_CAP_SLICED_VBI_CAPTURE | | |
1272 | V4L2_CAP_VIDEO_CAPTURE | | |
1273 | V4L2_CAP_AUDIO | | |
1274 | V4L2_CAP_READWRITE | V4L2_CAP_STREAMING; | |
1275 | ||
ed086314 | 1276 | if (dev->tuner_type != TUNER_ABSENT) |
195a4ef6 MCC |
1277 | cap->capabilities |= V4L2_CAP_TUNER; |
1278 | ||
1279 | return 0; | |
c0477ad9 MCC |
1280 | } |
1281 | ||
195a4ef6 MCC |
1282 | static int vidioc_enum_fmt_cap(struct file *file, void *priv, |
1283 | struct v4l2_fmtdesc *fmtd) | |
a6c2ba28 | 1284 | { |
195a4ef6 | 1285 | if (fmtd->index != 0) |
c0477ad9 | 1286 | return -EINVAL; |
195a4ef6 MCC |
1287 | |
1288 | fmtd->type = V4L2_BUF_TYPE_VIDEO_CAPTURE; | |
1289 | strcpy(fmtd->description, "Packed YUY2"); | |
1290 | fmtd->pixelformat = V4L2_PIX_FMT_YUYV; | |
1291 | memset(fmtd->reserved, 0, sizeof(fmtd->reserved)); | |
1292 | ||
1293 | return 0; | |
c0477ad9 MCC |
1294 | } |
1295 | ||
195a4ef6 MCC |
1296 | /* Sliced VBI ioctls */ |
1297 | static int vidioc_g_fmt_vbi_capture(struct file *file, void *priv, | |
1298 | struct v4l2_format *f) | |
a6c2ba28 | 1299 | { |
195a4ef6 MCC |
1300 | struct em28xx_fh *fh = priv; |
1301 | struct em28xx *dev = fh->dev; | |
1302 | int rc; | |
a6c2ba28 | 1303 | |
195a4ef6 MCC |
1304 | rc = check_dev(dev); |
1305 | if (rc < 0) | |
1306 | return rc; | |
a6c2ba28 | 1307 | |
195a4ef6 MCC |
1308 | mutex_lock(&dev->lock); |
1309 | ||
1310 | f->fmt.sliced.service_set = 0; | |
1311 | ||
1312 | em28xx_i2c_call_clients(dev, VIDIOC_G_FMT, f); | |
1313 | ||
1314 | if (f->fmt.sliced.service_set == 0) | |
1315 | rc = -EINVAL; | |
1316 | ||
1317 | mutex_unlock(&dev->lock); | |
1318 | return rc; | |
1319 | } | |
1320 | ||
1321 | static int vidioc_try_set_vbi_capture(struct file *file, void *priv, | |
1322 | struct v4l2_format *f) | |
1323 | { | |
1324 | struct em28xx_fh *fh = priv; | |
1325 | struct em28xx *dev = fh->dev; | |
1326 | int rc; | |
1327 | ||
1328 | rc = check_dev(dev); | |
1329 | if (rc < 0) | |
1330 | return rc; | |
1331 | ||
1332 | mutex_lock(&dev->lock); | |
1333 | em28xx_i2c_call_clients(dev, VIDIOC_G_FMT, f); | |
1334 | mutex_unlock(&dev->lock); | |
1335 | ||
1336 | if (f->fmt.sliced.service_set == 0) | |
1337 | return -EINVAL; | |
a6c2ba28 | 1338 | |
1339 | return 0; | |
1340 | } | |
1341 | ||
195a4ef6 MCC |
1342 | |
1343 | static int vidioc_reqbufs(struct file *file, void *priv, | |
1344 | struct v4l2_requestbuffers *rb) | |
a6c2ba28 | 1345 | { |
195a4ef6 MCC |
1346 | struct em28xx_fh *fh = priv; |
1347 | struct em28xx *dev = fh->dev; | |
195a4ef6 | 1348 | int rc; |
a6c2ba28 | 1349 | |
195a4ef6 MCC |
1350 | rc = check_dev(dev); |
1351 | if (rc < 0) | |
1352 | return rc; | |
a6c2ba28 | 1353 | |
ad0ebb96 | 1354 | return (videobuf_reqbufs(&fh->vb_vidq, rb)); |
a6c2ba28 | 1355 | } |
1356 | ||
195a4ef6 MCC |
1357 | static int vidioc_querybuf(struct file *file, void *priv, |
1358 | struct v4l2_buffer *b) | |
e5589bef | 1359 | { |
195a4ef6 MCC |
1360 | struct em28xx_fh *fh = priv; |
1361 | struct em28xx *dev = fh->dev; | |
1362 | int rc; | |
e5589bef | 1363 | |
195a4ef6 MCC |
1364 | rc = check_dev(dev); |
1365 | if (rc < 0) | |
1366 | return rc; | |
2d50f847 | 1367 | |
ad0ebb96 | 1368 | return (videobuf_querybuf(&fh->vb_vidq, b)); |
195a4ef6 MCC |
1369 | } |
1370 | ||
1371 | static int vidioc_qbuf(struct file *file, void *priv, struct v4l2_buffer *b) | |
1372 | { | |
1373 | struct em28xx_fh *fh = priv; | |
1374 | struct em28xx *dev = fh->dev; | |
195a4ef6 MCC |
1375 | int rc; |
1376 | ||
1377 | rc = check_dev(dev); | |
1378 | if (rc < 0) | |
1379 | return rc; | |
1380 | ||
ad0ebb96 | 1381 | return (videobuf_qbuf(&fh->vb_vidq, b)); |
e5589bef MCC |
1382 | } |
1383 | ||
195a4ef6 | 1384 | static int vidioc_dqbuf(struct file *file, void *priv, struct v4l2_buffer *b) |
2d50f847 | 1385 | { |
195a4ef6 MCC |
1386 | struct em28xx_fh *fh = priv; |
1387 | struct em28xx *dev = fh->dev; | |
1388 | int rc; | |
195a4ef6 MCC |
1389 | |
1390 | rc = check_dev(dev); | |
1391 | if (rc < 0) | |
1392 | return rc; | |
2d50f847 | 1393 | |
ad0ebb96 MCC |
1394 | return (videobuf_dqbuf(&fh->vb_vidq, b, |
1395 | file->f_flags & O_NONBLOCK)); | |
1396 | } | |
2d50f847 | 1397 | |
ad0ebb96 | 1398 | #ifdef CONFIG_VIDEO_V4L1_COMPAT |
f245e549 | 1399 | static int vidiocgmbuf(struct file *file, void *priv, struct video_mbuf *mbuf) |
ad0ebb96 | 1400 | { |
f245e549 | 1401 | struct em28xx_fh *fh = priv; |
2d50f847 | 1402 | |
f245e549 | 1403 | return videobuf_cgmbuf(&fh->vb_vidq, mbuf, 8); |
195a4ef6 | 1404 | } |
ad0ebb96 MCC |
1405 | #endif |
1406 | ||
2d50f847 | 1407 | |
0be43754 MCC |
1408 | /* ----------------------------------------------------------- */ |
1409 | /* RADIO ESPECIFIC IOCTLS */ | |
1410 | /* ----------------------------------------------------------- */ | |
1411 | ||
1412 | static int radio_querycap(struct file *file, void *priv, | |
1413 | struct v4l2_capability *cap) | |
1414 | { | |
1415 | struct em28xx *dev = ((struct em28xx_fh *)priv)->dev; | |
1416 | ||
1417 | strlcpy(cap->driver, "em28xx", sizeof(cap->driver)); | |
1418 | strlcpy(cap->card, em28xx_boards[dev->model].name, sizeof(cap->card)); | |
1419 | strlcpy(cap->bus_info, dev->udev->dev.bus_id, sizeof(cap->bus_info)); | |
1420 | ||
1421 | cap->version = EM28XX_VERSION_CODE; | |
1422 | cap->capabilities = V4L2_CAP_TUNER; | |
1423 | return 0; | |
1424 | } | |
1425 | ||
1426 | static int radio_g_tuner(struct file *file, void *priv, | |
1427 | struct v4l2_tuner *t) | |
1428 | { | |
1429 | struct em28xx *dev = ((struct em28xx_fh *)priv)->dev; | |
1430 | ||
1431 | if (unlikely(t->index > 0)) | |
1432 | return -EINVAL; | |
1433 | ||
1434 | strcpy(t->name, "Radio"); | |
1435 | t->type = V4L2_TUNER_RADIO; | |
1436 | ||
1437 | em28xx_i2c_call_clients(dev, VIDIOC_G_TUNER, t); | |
1438 | return 0; | |
1439 | } | |
1440 | ||
1441 | static int radio_enum_input(struct file *file, void *priv, | |
1442 | struct v4l2_input *i) | |
1443 | { | |
1444 | if (i->index != 0) | |
1445 | return -EINVAL; | |
1446 | strcpy(i->name, "Radio"); | |
1447 | i->type = V4L2_INPUT_TYPE_TUNER; | |
1448 | ||
1449 | return 0; | |
1450 | } | |
1451 | ||
1452 | static int radio_g_audio(struct file *file, void *priv, struct v4l2_audio *a) | |
1453 | { | |
1454 | if (unlikely(a->index)) | |
1455 | return -EINVAL; | |
1456 | ||
1457 | strcpy(a->name, "Radio"); | |
1458 | return 0; | |
1459 | } | |
1460 | ||
1461 | static int radio_s_tuner(struct file *file, void *priv, | |
1462 | struct v4l2_tuner *t) | |
1463 | { | |
1464 | struct em28xx *dev = ((struct em28xx_fh *)priv)->dev; | |
1465 | ||
1466 | if (0 != t->index) | |
1467 | return -EINVAL; | |
1468 | ||
1469 | em28xx_i2c_call_clients(dev, VIDIOC_S_TUNER, t); | |
1470 | ||
1471 | return 0; | |
1472 | } | |
1473 | ||
1474 | static int radio_s_audio(struct file *file, void *fh, | |
1475 | struct v4l2_audio *a) | |
1476 | { | |
1477 | return 0; | |
1478 | } | |
1479 | ||
1480 | static int radio_s_input(struct file *file, void *fh, unsigned int i) | |
1481 | { | |
1482 | return 0; | |
1483 | } | |
1484 | ||
1485 | static int radio_queryctrl(struct file *file, void *priv, | |
1486 | struct v4l2_queryctrl *qc) | |
1487 | { | |
1488 | int i; | |
1489 | ||
1490 | if (qc->id < V4L2_CID_BASE || | |
1491 | qc->id >= V4L2_CID_LASTP1) | |
1492 | return -EINVAL; | |
1493 | ||
1494 | for (i = 0; i < ARRAY_SIZE(em28xx_qctrl); i++) { | |
1495 | if (qc->id && qc->id == em28xx_qctrl[i].id) { | |
1496 | memcpy(qc, &(em28xx_qctrl[i]), sizeof(*qc)); | |
1497 | return 0; | |
1498 | } | |
1499 | } | |
1500 | ||
1501 | return -EINVAL; | |
1502 | } | |
1503 | ||
195a4ef6 MCC |
1504 | /* |
1505 | * em28xx_v4l2_open() | |
1506 | * inits the device and starts isoc transfer | |
1507 | */ | |
1508 | static int em28xx_v4l2_open(struct inode *inode, struct file *filp) | |
1509 | { | |
1510 | int minor = iminor(inode); | |
0be43754 | 1511 | int errCode = 0, radio = 0; |
6ea54d93 | 1512 | struct em28xx *h, *dev = NULL; |
195a4ef6 | 1513 | struct em28xx_fh *fh; |
d7aa8020 | 1514 | enum v4l2_buf_type fh_type = 0; |
2d50f847 | 1515 | |
195a4ef6 MCC |
1516 | list_for_each_entry(h, &em28xx_devlist, devlist) { |
1517 | if (h->vdev->minor == minor) { | |
1518 | dev = h; | |
d7aa8020 | 1519 | fh_type = V4L2_BUF_TYPE_VIDEO_CAPTURE; |
195a4ef6 MCC |
1520 | } |
1521 | if (h->vbi_dev->minor == minor) { | |
1522 | dev = h; | |
d7aa8020 | 1523 | fh_type = V4L2_BUF_TYPE_VBI_CAPTURE; |
195a4ef6 | 1524 | } |
0be43754 MCC |
1525 | if (h->radio_dev && |
1526 | h->radio_dev->minor == minor) { | |
1527 | radio = 1; | |
1528 | dev = h; | |
1529 | } | |
2d50f847 | 1530 | } |
195a4ef6 MCC |
1531 | if (NULL == dev) |
1532 | return -ENODEV; | |
2d50f847 | 1533 | |
195a4ef6 | 1534 | em28xx_videodbg("open minor=%d type=%s users=%d\n", |
d7aa8020 | 1535 | minor, v4l2_type_names[fh_type], dev->users); |
2d50f847 | 1536 | |
195a4ef6 | 1537 | fh = kzalloc(sizeof(struct em28xx_fh), GFP_KERNEL); |
9aeb4b05 | 1538 | |
195a4ef6 MCC |
1539 | if (!fh) { |
1540 | em28xx_errdev("em28xx-video.c: Out of memory?!\n"); | |
1541 | return -ENOMEM; | |
1542 | } | |
1543 | mutex_lock(&dev->lock); | |
1544 | fh->dev = dev; | |
0be43754 | 1545 | fh->radio = radio; |
d7aa8020 | 1546 | fh->type = fh_type; |
195a4ef6 | 1547 | filp->private_data = fh; |
9aeb4b05 | 1548 | |
d7aa8020 | 1549 | if (fh->type == V4L2_BUF_TYPE_VIDEO_CAPTURE && dev->users == 0) { |
195a4ef6 MCC |
1550 | dev->width = norm_maxw(dev); |
1551 | dev->height = norm_maxh(dev); | |
195a4ef6 MCC |
1552 | dev->hscale = 0; |
1553 | dev->vscale = 0; | |
2d50f847 | 1554 | |
3687e1e6 | 1555 | em28xx_set_alternate(dev); |
195a4ef6 | 1556 | em28xx_resolution_set(dev); |
2d50f847 | 1557 | |
2d50f847 | 1558 | } |
0be43754 MCC |
1559 | if (fh->radio) { |
1560 | em28xx_videodbg("video_open: setting radio device\n"); | |
1561 | em28xx_i2c_call_clients(dev, AUDC_SET_RADIO, NULL); | |
1562 | } | |
2d50f847 | 1563 | |
195a4ef6 | 1564 | dev->users++; |
2d50f847 | 1565 | |
ad0ebb96 MCC |
1566 | videobuf_queue_vmalloc_init(&fh->vb_vidq, &em28xx_video_qops, |
1567 | NULL, &dev->slock, fh->type, V4L2_FIELD_INTERLACED, | |
1568 | sizeof(struct em28xx_buffer), fh); | |
1569 | ||
195a4ef6 MCC |
1570 | mutex_unlock(&dev->lock); |
1571 | return errCode; | |
2d50f847 | 1572 | } |
e5589bef | 1573 | |
a6c2ba28 | 1574 | /* |
195a4ef6 MCC |
1575 | * em28xx_realease_resources() |
1576 | * unregisters the v4l2,i2c and usb devices | |
1577 | * called when the device gets disconected or at module unload | |
1578 | */ | |
1579 | static void em28xx_release_resources(struct em28xx *dev) | |
a6c2ba28 | 1580 | { |
a6c2ba28 | 1581 | |
195a4ef6 | 1582 | /*FIXME: I2C IR should be disconnected */ |
a6c2ba28 | 1583 | |
195a4ef6 MCC |
1584 | em28xx_info("V4L2 devices /dev/video%d and /dev/vbi%d deregistered\n", |
1585 | dev->vdev->minor-MINOR_VFL_TYPE_GRABBER_MIN, | |
1586 | dev->vbi_dev->minor-MINOR_VFL_TYPE_VBI_MIN); | |
1587 | list_del(&dev->devlist); | |
0be43754 MCC |
1588 | if (dev->radio_dev) { |
1589 | if (-1 != dev->radio_dev->minor) | |
1590 | video_unregister_device(dev->radio_dev); | |
1591 | else | |
1592 | video_device_release(dev->radio_dev); | |
1593 | dev->radio_dev = NULL; | |
1594 | } | |
1595 | if (dev->vbi_dev) { | |
1596 | if (-1 != dev->vbi_dev->minor) | |
1597 | video_unregister_device(dev->vbi_dev); | |
1598 | else | |
1599 | video_device_release(dev->vbi_dev); | |
1600 | dev->vbi_dev = NULL; | |
1601 | } | |
1602 | if (dev->vdev) { | |
1603 | if (-1 != dev->vdev->minor) | |
1604 | video_unregister_device(dev->vdev); | |
1605 | else | |
1606 | video_device_release(dev->vdev); | |
1607 | dev->vdev = NULL; | |
1608 | } | |
195a4ef6 MCC |
1609 | em28xx_i2c_unregister(dev); |
1610 | usb_put_dev(dev->udev); | |
a6c2ba28 | 1611 | |
195a4ef6 | 1612 | /* Mark device as unused */ |
6ea54d93 | 1613 | em28xx_devused &= ~(1<<dev->devno); |
195a4ef6 | 1614 | } |
a6c2ba28 | 1615 | |
195a4ef6 MCC |
1616 | /* |
1617 | * em28xx_v4l2_close() | |
6ea54d93 DSL |
1618 | * stops streaming and deallocates all resources allocated by the v4l2 |
1619 | * calls and ioctls | |
195a4ef6 MCC |
1620 | */ |
1621 | static int em28xx_v4l2_close(struct inode *inode, struct file *filp) | |
1622 | { | |
1623 | struct em28xx_fh *fh = filp->private_data; | |
1624 | struct em28xx *dev = fh->dev; | |
1625 | int errCode; | |
a6c2ba28 | 1626 | |
195a4ef6 | 1627 | em28xx_videodbg("users=%d\n", dev->users); |
a6c2ba28 | 1628 | |
a6c2ba28 | 1629 | |
195a4ef6 MCC |
1630 | if (res_check(fh)) |
1631 | res_free(fh); | |
a6c2ba28 | 1632 | |
195a4ef6 | 1633 | mutex_lock(&dev->lock); |
a6c2ba28 | 1634 | |
195a4ef6 | 1635 | if (dev->users == 1) { |
ad0ebb96 MCC |
1636 | videobuf_stop(&fh->vb_vidq); |
1637 | videobuf_mmap_free(&fh->vb_vidq); | |
a6c2ba28 | 1638 | |
195a4ef6 MCC |
1639 | /* the device is already disconnect, |
1640 | free the remaining resources */ | |
1641 | if (dev->state & DEV_DISCONNECTED) { | |
1642 | em28xx_release_resources(dev); | |
1643 | mutex_unlock(&dev->lock); | |
1644 | kfree(dev); | |
1645 | return 0; | |
1646 | } | |
a6c2ba28 | 1647 | |
d7aa8020 AT |
1648 | /* do this before setting alternate! */ |
1649 | em28xx_uninit_isoc(dev); | |
1650 | ||
195a4ef6 MCC |
1651 | /* set alternate 0 */ |
1652 | dev->alt = 0; | |
1653 | em28xx_videodbg("setting alternate 0\n"); | |
1654 | errCode = usb_set_interface(dev->udev, 0, 0); | |
1655 | if (errCode < 0) { | |
1656 | em28xx_errdev("cannot change alternate number to " | |
1657 | "0 (error=%i)\n", errCode); | |
1658 | } | |
9aeb4b05 | 1659 | } |
195a4ef6 MCC |
1660 | kfree(fh); |
1661 | dev->users--; | |
1662 | wake_up_interruptible_nr(&dev->open, 1); | |
1663 | mutex_unlock(&dev->lock); | |
1664 | return 0; | |
1665 | } | |
a6c2ba28 | 1666 | |
195a4ef6 MCC |
1667 | /* |
1668 | * em28xx_v4l2_read() | |
1669 | * will allocate buffers when called for the first time | |
1670 | */ | |
1671 | static ssize_t | |
6ea54d93 | 1672 | em28xx_v4l2_read(struct file *filp, char __user *buf, size_t count, |
f245e549 | 1673 | loff_t *pos) |
195a4ef6 | 1674 | { |
195a4ef6 MCC |
1675 | struct em28xx_fh *fh = filp->private_data; |
1676 | struct em28xx *dev = fh->dev; | |
ad0ebb96 MCC |
1677 | int rc; |
1678 | ||
1679 | rc = check_dev(dev); | |
1680 | if (rc < 0) | |
1681 | return rc; | |
a6c2ba28 | 1682 | |
195a4ef6 MCC |
1683 | /* FIXME: read() is not prepared to allow changing the video |
1684 | resolution while streaming. Seems a bug at em28xx_set_fmt | |
1685 | */ | |
a6c2ba28 | 1686 | |
ad0ebb96 MCC |
1687 | if (fh->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) { |
1688 | if (unlikely(res_get(fh))) | |
1689 | return -EBUSY; | |
195a4ef6 | 1690 | |
ad0ebb96 MCC |
1691 | return videobuf_read_stream(&fh->vb_vidq, buf, count, pos, 0, |
1692 | filp->f_flags & O_NONBLOCK); | |
195a4ef6 | 1693 | } |
ad0ebb96 | 1694 | return 0; |
a6c2ba28 | 1695 | } |
1696 | ||
1697 | /* | |
195a4ef6 MCC |
1698 | * em28xx_v4l2_poll() |
1699 | * will allocate buffers when called for the first time | |
a6c2ba28 | 1700 | */ |
195a4ef6 | 1701 | static unsigned int em28xx_v4l2_poll(struct file *filp, poll_table * wait) |
a6c2ba28 | 1702 | { |
a3a048ce | 1703 | struct em28xx_fh *fh = filp->private_data; |
195a4ef6 | 1704 | struct em28xx *dev = fh->dev; |
ad0ebb96 MCC |
1705 | int rc; |
1706 | ||
1707 | rc = check_dev(dev); | |
1708 | if (rc < 0) | |
1709 | return rc; | |
a6c2ba28 | 1710 | |
195a4ef6 MCC |
1711 | if (unlikely(res_get(fh) < 0)) |
1712 | return POLLERR; | |
a6c2ba28 | 1713 | |
ad0ebb96 MCC |
1714 | if (V4L2_BUF_TYPE_VIDEO_CAPTURE != fh->type) |
1715 | return POLLERR; | |
a6c2ba28 | 1716 | |
ad0ebb96 | 1717 | return videobuf_poll_stream(filp, &fh->vb_vidq, wait); |
195a4ef6 | 1718 | } |
a6c2ba28 | 1719 | |
195a4ef6 MCC |
1720 | /* |
1721 | * em28xx_v4l2_mmap() | |
1722 | */ | |
1723 | static int em28xx_v4l2_mmap(struct file *filp, struct vm_area_struct *vma) | |
1724 | { | |
1725 | struct em28xx_fh *fh = filp->private_data; | |
1726 | struct em28xx *dev = fh->dev; | |
ad0ebb96 | 1727 | int rc; |
a6c2ba28 | 1728 | |
195a4ef6 MCC |
1729 | if (unlikely(res_get(fh) < 0)) |
1730 | return -EBUSY; | |
a6c2ba28 | 1731 | |
ad0ebb96 MCC |
1732 | rc = check_dev(dev); |
1733 | if (rc < 0) | |
1734 | return rc; | |
a6c2ba28 | 1735 | |
ad0ebb96 | 1736 | rc = videobuf_mmap_mapper(&fh->vb_vidq, vma); |
a6c2ba28 | 1737 | |
ad0ebb96 MCC |
1738 | em28xx_videodbg("vma start=0x%08lx, size=%ld, ret=%d\n", |
1739 | (unsigned long)vma->vm_start, | |
1740 | (unsigned long)vma->vm_end-(unsigned long)vma->vm_start, | |
1741 | rc); | |
a6c2ba28 | 1742 | |
ad0ebb96 | 1743 | return rc; |
a6c2ba28 | 1744 | } |
1745 | ||
fa027c2a | 1746 | static const struct file_operations em28xx_v4l_fops = { |
195a4ef6 MCC |
1747 | .owner = THIS_MODULE, |
1748 | .open = em28xx_v4l2_open, | |
1749 | .release = em28xx_v4l2_close, | |
1750 | .read = em28xx_v4l2_read, | |
1751 | .poll = em28xx_v4l2_poll, | |
1752 | .mmap = em28xx_v4l2_mmap, | |
1753 | .ioctl = video_ioctl2, | |
1754 | .llseek = no_llseek, | |
1755 | .compat_ioctl = v4l_compat_ioctl32, | |
1756 | }; | |
17cbe2e5 | 1757 | |
0be43754 MCC |
1758 | static const struct file_operations radio_fops = { |
1759 | .owner = THIS_MODULE, | |
1760 | .open = em28xx_v4l2_open, | |
1761 | .release = em28xx_v4l2_close, | |
1762 | .ioctl = video_ioctl2, | |
1763 | .compat_ioctl = v4l_compat_ioctl32, | |
1764 | .llseek = no_llseek, | |
1765 | }; | |
1766 | ||
195a4ef6 MCC |
1767 | static const struct video_device em28xx_video_template = { |
1768 | .fops = &em28xx_v4l_fops, | |
1769 | .release = video_device_release, | |
1770 | ||
1771 | .minor = -1, | |
1772 | .vidioc_querycap = vidioc_querycap, | |
1773 | .vidioc_enum_fmt_cap = vidioc_enum_fmt_cap, | |
1774 | .vidioc_g_fmt_cap = vidioc_g_fmt_cap, | |
1775 | .vidioc_try_fmt_cap = vidioc_try_fmt_cap, | |
1776 | .vidioc_s_fmt_cap = vidioc_s_fmt_cap, | |
1777 | .vidioc_g_audio = vidioc_g_audio, | |
1778 | .vidioc_s_audio = vidioc_s_audio, | |
1779 | .vidioc_cropcap = vidioc_cropcap, | |
1780 | ||
1781 | .vidioc_g_fmt_vbi_capture = vidioc_g_fmt_vbi_capture, | |
1782 | .vidioc_try_fmt_vbi_capture = vidioc_try_set_vbi_capture, | |
1783 | .vidioc_s_fmt_vbi_capture = vidioc_try_set_vbi_capture, | |
1784 | ||
1785 | .vidioc_reqbufs = vidioc_reqbufs, | |
1786 | .vidioc_querybuf = vidioc_querybuf, | |
1787 | .vidioc_qbuf = vidioc_qbuf, | |
1788 | .vidioc_dqbuf = vidioc_dqbuf, | |
1789 | .vidioc_s_std = vidioc_s_std, | |
1790 | .vidioc_enum_input = vidioc_enum_input, | |
1791 | .vidioc_g_input = vidioc_g_input, | |
1792 | .vidioc_s_input = vidioc_s_input, | |
1793 | .vidioc_queryctrl = vidioc_queryctrl, | |
1794 | .vidioc_g_ctrl = vidioc_g_ctrl, | |
1795 | .vidioc_s_ctrl = vidioc_s_ctrl, | |
1796 | .vidioc_streamon = vidioc_streamon, | |
1797 | .vidioc_streamoff = vidioc_streamoff, | |
1798 | .vidioc_g_tuner = vidioc_g_tuner, | |
1799 | .vidioc_s_tuner = vidioc_s_tuner, | |
1800 | .vidioc_g_frequency = vidioc_g_frequency, | |
1801 | .vidioc_s_frequency = vidioc_s_frequency, | |
1e7ad56f MCC |
1802 | #ifdef CONFIG_VIDEO_ADV_DEBUG |
1803 | .vidioc_g_register = vidioc_g_register, | |
1804 | .vidioc_s_register = vidioc_s_register, | |
1805 | #endif | |
ad0ebb96 MCC |
1806 | #ifdef CONFIG_VIDEO_V4L1_COMPAT |
1807 | .vidiocgmbuf = vidiocgmbuf, | |
1808 | #endif | |
195a4ef6 MCC |
1809 | |
1810 | .tvnorms = V4L2_STD_ALL, | |
7d497f8a | 1811 | .current_norm = V4L2_STD_PAL, |
a6c2ba28 | 1812 | }; |
1813 | ||
0be43754 MCC |
1814 | static struct video_device em28xx_radio_template = { |
1815 | .name = "em28xx-radio", | |
1816 | .type = VID_TYPE_TUNER, | |
1817 | .fops = &radio_fops, | |
1818 | .minor = -1, | |
1819 | .vidioc_querycap = radio_querycap, | |
1820 | .vidioc_g_tuner = radio_g_tuner, | |
1821 | .vidioc_enum_input = radio_enum_input, | |
1822 | .vidioc_g_audio = radio_g_audio, | |
1823 | .vidioc_s_tuner = radio_s_tuner, | |
1824 | .vidioc_s_audio = radio_s_audio, | |
1825 | .vidioc_s_input = radio_s_input, | |
1826 | .vidioc_queryctrl = radio_queryctrl, | |
1827 | .vidioc_g_ctrl = vidioc_g_ctrl, | |
1828 | .vidioc_s_ctrl = vidioc_s_ctrl, | |
1829 | .vidioc_g_frequency = vidioc_g_frequency, | |
1830 | .vidioc_s_frequency = vidioc_s_frequency, | |
1e7ad56f MCC |
1831 | #ifdef CONFIG_VIDEO_ADV_DEBUG |
1832 | .vidioc_g_register = vidioc_g_register, | |
1833 | .vidioc_s_register = vidioc_s_register, | |
1834 | #endif | |
0be43754 MCC |
1835 | }; |
1836 | ||
6ea54d93 | 1837 | /******************************** usb interface ******************************/ |
a6c2ba28 | 1838 | |
6d79468d MCC |
1839 | |
1840 | static LIST_HEAD(em28xx_extension_devlist); | |
1841 | static DEFINE_MUTEX(em28xx_extension_devlist_lock); | |
1842 | ||
1843 | int em28xx_register_extension(struct em28xx_ops *ops) | |
1844 | { | |
1845 | struct em28xx *h, *dev = NULL; | |
1846 | ||
1847 | list_for_each_entry(h, &em28xx_devlist, devlist) | |
1848 | dev = h; | |
1849 | ||
1850 | mutex_lock(&em28xx_extension_devlist_lock); | |
1851 | list_add_tail(&ops->next, &em28xx_extension_devlist); | |
1852 | if (dev) | |
1853 | ops->init(dev); | |
1854 | ||
1855 | printk(KERN_INFO "Em28xx: Initialized (%s) extension\n", ops->name); | |
1856 | mutex_unlock(&em28xx_extension_devlist_lock); | |
1857 | ||
1858 | return 0; | |
1859 | } | |
1860 | EXPORT_SYMBOL(em28xx_register_extension); | |
1861 | ||
1862 | void em28xx_unregister_extension(struct em28xx_ops *ops) | |
1863 | { | |
1864 | struct em28xx *h, *dev = NULL; | |
1865 | ||
1866 | list_for_each_entry(h, &em28xx_devlist, devlist) | |
1867 | dev = h; | |
1868 | ||
1869 | if (dev) | |
1870 | ops->fini(dev); | |
1871 | ||
1872 | mutex_lock(&em28xx_extension_devlist_lock); | |
1873 | printk(KERN_INFO "Em28xx: Removed (%s) extension\n", ops->name); | |
1874 | list_del(&ops->next); | |
1875 | mutex_unlock(&em28xx_extension_devlist_lock); | |
1876 | } | |
1877 | EXPORT_SYMBOL(em28xx_unregister_extension); | |
1878 | ||
532fe652 AB |
1879 | static struct video_device *em28xx_vdev_init(struct em28xx *dev, |
1880 | const struct video_device *template, | |
1881 | const int type, | |
1882 | const char *type_name) | |
0be43754 MCC |
1883 | { |
1884 | struct video_device *vfd; | |
1885 | ||
1886 | vfd = video_device_alloc(); | |
1887 | if (NULL == vfd) | |
1888 | return NULL; | |
1889 | *vfd = *template; | |
1890 | vfd->minor = -1; | |
1891 | vfd->dev = &dev->udev->dev; | |
1892 | vfd->release = video_device_release; | |
1893 | vfd->type = type; | |
e9e6040d | 1894 | vfd->debug = video_debug; |
0be43754 MCC |
1895 | |
1896 | snprintf(vfd->name, sizeof(vfd->name), "%s %s", | |
1897 | dev->name, type_name); | |
1898 | ||
1899 | return vfd; | |
1900 | } | |
1901 | ||
1902 | ||
a6c2ba28 | 1903 | /* |
3acf2809 | 1904 | * em28xx_init_dev() |
a6c2ba28 | 1905 | * allocates and inits the device structs, registers i2c bus and v4l device |
1906 | */ | |
3acf2809 | 1907 | static int em28xx_init_dev(struct em28xx **devhandle, struct usb_device *udev, |
03910cc3 | 1908 | int minor) |
a6c2ba28 | 1909 | { |
6d79468d | 1910 | struct em28xx_ops *ops = NULL; |
3acf2809 | 1911 | struct em28xx *dev = *devhandle; |
a6c2ba28 | 1912 | int retval = -ENOMEM; |
7d497f8a | 1913 | int errCode; |
a6c2ba28 | 1914 | unsigned int maxh, maxw; |
a6c2ba28 | 1915 | |
a6c2ba28 | 1916 | dev->udev = udev; |
3593cab5 | 1917 | mutex_init(&dev->lock); |
d7aa8020 | 1918 | spin_lock_init(&dev->slock); |
a6c2ba28 | 1919 | init_waitqueue_head(&dev->open); |
a3a048ce MCC |
1920 | init_waitqueue_head(&dev->wait_frame); |
1921 | init_waitqueue_head(&dev->wait_stream); | |
a6c2ba28 | 1922 | |
3acf2809 MCC |
1923 | dev->em28xx_write_regs = em28xx_write_regs; |
1924 | dev->em28xx_read_reg = em28xx_read_reg; | |
1925 | dev->em28xx_read_reg_req_len = em28xx_read_reg_req_len; | |
1926 | dev->em28xx_write_regs_req = em28xx_write_regs_req; | |
1927 | dev->em28xx_read_reg_req = em28xx_read_reg_req; | |
fad7b958 | 1928 | dev->is_em2800 = em28xx_boards[dev->model].is_em2800; |
a6c2ba28 | 1929 | |
a94e95b4 | 1930 | em28xx_pre_card_setup(dev); |
03910cc3 | 1931 | |
3acf2809 | 1932 | errCode = em28xx_config(dev); |
a6c2ba28 | 1933 | if (errCode) { |
3acf2809 | 1934 | em28xx_errdev("error configuring device\n"); |
03910cc3 | 1935 | em28xx_devused &= ~(1<<dev->devno); |
7c908fbb | 1936 | kfree(dev); |
a6c2ba28 | 1937 | return -ENOMEM; |
1938 | } | |
1939 | ||
a6c2ba28 | 1940 | /* register i2c bus */ |
3acf2809 | 1941 | em28xx_i2c_register(dev); |
a6c2ba28 | 1942 | |
1943 | /* Do board specific init and eeprom reading */ | |
3acf2809 | 1944 | em28xx_card_setup(dev); |
a6c2ba28 | 1945 | |
3abee53e MCC |
1946 | /* Configure audio */ |
1947 | em28xx_audio_analog_set(dev); | |
1948 | ||
a6c2ba28 | 1949 | /* configure the device */ |
3acf2809 | 1950 | em28xx_config_i2c(dev); |
a6c2ba28 | 1951 | |
7d497f8a MCC |
1952 | /* set default norm */ |
1953 | dev->norm = em28xx_video_template.current_norm; | |
03910cc3 MCC |
1954 | |
1955 | maxw = norm_maxw(dev); | |
1956 | maxh = norm_maxh(dev); | |
1957 | ||
1958 | /* set default image size */ | |
1959 | dev->width = maxw; | |
1960 | dev->height = maxh; | |
1961 | dev->interlaced = EM28XX_INTERLACED_DEFAULT; | |
03910cc3 MCC |
1962 | dev->hscale = 0; |
1963 | dev->vscale = 0; | |
1964 | dev->ctl_input = 2; | |
1965 | ||
3acf2809 | 1966 | errCode = em28xx_config(dev); |
a6c2ba28 | 1967 | |
0be43754 MCC |
1968 | list_add_tail(&dev->devlist, &em28xx_devlist); |
1969 | ||
195a4ef6 | 1970 | /* allocate and fill video video_device struct */ |
0be43754 MCC |
1971 | dev->vdev = em28xx_vdev_init(dev, &em28xx_video_template, |
1972 | VID_TYPE_CAPTURE, "video"); | |
a6c2ba28 | 1973 | if (NULL == dev->vdev) { |
3acf2809 | 1974 | em28xx_errdev("cannot allocate video_device.\n"); |
0be43754 | 1975 | goto fail_unreg; |
e5589bef | 1976 | } |
ed086314 | 1977 | if (dev->tuner_type != TUNER_ABSENT) |
195a4ef6 | 1978 | dev->vdev->type |= VID_TYPE_TUNER; |
0be43754 MCC |
1979 | |
1980 | /* register v4l2 video video_device */ | |
1981 | retval = video_register_device(dev->vdev, VFL_TYPE_GRABBER, | |
1982 | video_nr[dev->devno]); | |
1983 | if (retval) { | |
1984 | em28xx_errdev("unable to register video device (error=%i).\n", | |
1985 | retval); | |
1986 | goto fail_unreg; | |
1987 | } | |
e5589bef | 1988 | |
195a4ef6 | 1989 | /* Allocate and fill vbi video_device struct */ |
0be43754 MCC |
1990 | dev->vbi_dev = em28xx_vdev_init(dev, &em28xx_video_template, |
1991 | VFL_TYPE_VBI, "vbi"); | |
1992 | /* register v4l2 vbi video_device */ | |
1993 | if (video_register_device(dev->vbi_dev, VFL_TYPE_VBI, | |
1994 | vbi_nr[dev->devno]) < 0) { | |
1995 | em28xx_errdev("unable to register vbi device\n"); | |
1996 | retval = -ENODEV; | |
1997 | goto fail_unreg; | |
1998 | } | |
1999 | ||
2000 | if (em28xx_boards[dev->model].radio.type == EM28XX_RADIO) { | |
2001 | dev->radio_dev = em28xx_vdev_init(dev, &em28xx_radio_template, | |
2002 | VFL_TYPE_RADIO, "radio"); | |
2003 | if (NULL == dev->radio_dev) { | |
2004 | em28xx_errdev("cannot allocate video_device.\n"); | |
2005 | goto fail_unreg; | |
2006 | } | |
2007 | retval = video_register_device(dev->radio_dev, VFL_TYPE_RADIO, | |
2008 | radio_nr[dev->devno]); | |
2009 | if (retval < 0) { | |
2010 | em28xx_errdev("can't register radio device\n"); | |
2011 | goto fail_unreg; | |
2012 | } | |
2013 | em28xx_info("Registered radio device as /dev/radio%d\n", | |
2014 | dev->radio_dev->minor & 0x1f); | |
a6c2ba28 | 2015 | } |
e5589bef | 2016 | |
ad0ebb96 MCC |
2017 | /* init video dma queues */ |
2018 | INIT_LIST_HEAD(&dev->vidq.active); | |
2019 | INIT_LIST_HEAD(&dev->vidq.queued); | |
2020 | ||
a6c2ba28 | 2021 | |
5a80415b SS |
2022 | if (dev->has_msp34xx) { |
2023 | /* Send a reset to other chips via gpio */ | |
2024 | em28xx_write_regs_req(dev, 0x00, 0x08, "\xf7", 1); | |
2025 | msleep(3); | |
2026 | em28xx_write_regs_req(dev, 0x00, 0x08, "\xff", 1); | |
2027 | msleep(3); | |
5a80415b | 2028 | } |
195a4ef6 | 2029 | |
5a80415b SS |
2030 | video_mux(dev, 0); |
2031 | ||
e5589bef MCC |
2032 | em28xx_info("V4L2 device registered as /dev/video%d and /dev/vbi%d\n", |
2033 | dev->vdev->minor-MINOR_VFL_TYPE_GRABBER_MIN, | |
2034 | dev->vbi_dev->minor-MINOR_VFL_TYPE_VBI_MIN); | |
a6c2ba28 | 2035 | |
6d79468d MCC |
2036 | mutex_lock(&em28xx_extension_devlist_lock); |
2037 | if (!list_empty(&em28xx_extension_devlist)) { | |
2038 | list_for_each_entry(ops, &em28xx_extension_devlist, next) { | |
2039 | if (ops->id) | |
2040 | ops->init(dev); | |
2041 | } | |
2042 | } | |
2043 | mutex_unlock(&em28xx_extension_devlist_lock); | |
2044 | ||
a6c2ba28 | 2045 | return 0; |
0be43754 MCC |
2046 | |
2047 | fail_unreg: | |
2048 | em28xx_release_resources(dev); | |
2049 | mutex_unlock(&dev->lock); | |
2050 | kfree(dev); | |
2051 | return retval; | |
a6c2ba28 | 2052 | } |
2053 | ||
d7448a8d MCC |
2054 | #if defined(CONFIG_MODULES) && defined(MODULE) |
2055 | static void request_module_async(struct work_struct *work) | |
2056 | { | |
2057 | struct em28xx *dev = container_of(work, | |
2058 | struct em28xx, request_module_wk); | |
2059 | ||
3f4dfe2a MCC |
2060 | if (dev->has_audio_class) |
2061 | request_module("snd-usb-audio"); | |
2062 | else | |
d7448a8d | 2063 | request_module("em28xx-alsa"); |
3aefb79a MCC |
2064 | |
2065 | if (dev->has_dvb) | |
2066 | request_module("em28xx-dvb"); | |
d7448a8d MCC |
2067 | } |
2068 | ||
2069 | static void request_modules(struct em28xx *dev) | |
2070 | { | |
2071 | INIT_WORK(&dev->request_module_wk, request_module_async); | |
2072 | schedule_work(&dev->request_module_wk); | |
2073 | } | |
2074 | #else | |
2075 | #define request_modules(dev) | |
2076 | #endif /* CONFIG_MODULES */ | |
2077 | ||
a6c2ba28 | 2078 | /* |
3acf2809 | 2079 | * em28xx_usb_probe() |
a6c2ba28 | 2080 | * checks for supported devices |
2081 | */ | |
3acf2809 | 2082 | static int em28xx_usb_probe(struct usb_interface *interface, |
a6c2ba28 | 2083 | const struct usb_device_id *id) |
2084 | { | |
2085 | const struct usb_endpoint_descriptor *endpoint; | |
2086 | struct usb_device *udev; | |
9d4d9c05 | 2087 | struct usb_interface *uif; |
3acf2809 | 2088 | struct em28xx *dev = NULL; |
a6c2ba28 | 2089 | int retval = -ENODEV; |
03910cc3 | 2090 | int i, nr, ifnum; |
a6c2ba28 | 2091 | |
2092 | udev = usb_get_dev(interface_to_usbdev(interface)); | |
d5e52653 MCC |
2093 | ifnum = interface->altsetting[0].desc.bInterfaceNumber; |
2094 | ||
e5589bef | 2095 | /* Check to see next free device and mark as used */ |
6ea54d93 DSL |
2096 | nr = find_first_zero_bit(&em28xx_devused, EM28XX_MAXBOARDS); |
2097 | em28xx_devused |= 1<<nr; | |
a6c2ba28 | 2098 | |
596d92d5 | 2099 | /* Don't register audio interfaces */ |
91cad0f2 | 2100 | if (interface->altsetting[0].desc.bInterfaceClass == USB_CLASS_AUDIO) { |
3acf2809 | 2101 | em28xx_err(DRIVER_NAME " audio device (%04x:%04x): interface %i, class %i\n", |
6ea54d93 DSL |
2102 | udev->descriptor.idVendor, |
2103 | udev->descriptor.idProduct, | |
91cad0f2 MCC |
2104 | ifnum, |
2105 | interface->altsetting[0].desc.bInterfaceClass); | |
e5589bef | 2106 | |
6ea54d93 | 2107 | em28xx_devused &= ~(1<<nr); |
596d92d5 | 2108 | return -ENODEV; |
91cad0f2 MCC |
2109 | } |
2110 | ||
3acf2809 | 2111 | em28xx_err(DRIVER_NAME " new video device (%04x:%04x): interface %i, class %i\n", |
6ea54d93 DSL |
2112 | udev->descriptor.idVendor, |
2113 | udev->descriptor.idProduct, | |
91cad0f2 MCC |
2114 | ifnum, |
2115 | interface->altsetting[0].desc.bInterfaceClass); | |
596d92d5 | 2116 | |
d5e52653 MCC |
2117 | endpoint = &interface->cur_altsetting->endpoint[1].desc; |
2118 | ||
59c51591 | 2119 | /* check if the device has the iso in endpoint at the correct place */ |
a6c2ba28 | 2120 | if ((endpoint->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) != |
2121 | USB_ENDPOINT_XFER_ISOC) { | |
3acf2809 | 2122 | em28xx_err(DRIVER_NAME " probing error: endpoint is non-ISO endpoint!\n"); |
6ea54d93 | 2123 | em28xx_devused &= ~(1<<nr); |
a6c2ba28 | 2124 | return -ENODEV; |
2125 | } | |
2126 | if ((endpoint->bEndpointAddress & USB_ENDPOINT_DIR_MASK) == USB_DIR_OUT) { | |
3acf2809 | 2127 | em28xx_err(DRIVER_NAME " probing error: endpoint is ISO OUT endpoint!\n"); |
6ea54d93 | 2128 | em28xx_devused &= ~(1<<nr); |
a6c2ba28 | 2129 | return -ENODEV; |
2130 | } | |
2131 | ||
19478843 | 2132 | if (nr >= EM28XX_MAXBOARDS) { |
6ea54d93 DSL |
2133 | printk(DRIVER_NAME ": Supports only %i em28xx boards.\n", |
2134 | EM28XX_MAXBOARDS); | |
2135 | em28xx_devused &= ~(1<<nr); | |
596d92d5 MCC |
2136 | return -ENOMEM; |
2137 | } | |
2138 | ||
2139 | /* allocate memory for our device state and initialize it */ | |
7408187d | 2140 | dev = kzalloc(sizeof(*dev), GFP_KERNEL); |
596d92d5 | 2141 | if (dev == NULL) { |
3acf2809 | 2142 | em28xx_err(DRIVER_NAME ": out of memory!\n"); |
6ea54d93 | 2143 | em28xx_devused &= ~(1<<nr); |
596d92d5 MCC |
2144 | return -ENOMEM; |
2145 | } | |
596d92d5 | 2146 | |
e5589bef | 2147 | snprintf(dev->name, 29, "em28xx #%d", nr); |
03910cc3 MCC |
2148 | dev->devno = nr; |
2149 | dev->model = id->driver_info; | |
3687e1e6 | 2150 | dev->alt = -1; |
e5589bef | 2151 | |
d7448a8d MCC |
2152 | /* Checks if audio is provided by some interface */ |
2153 | for (i = 0; i < udev->config->desc.bNumInterfaces; i++) { | |
2154 | uif = udev->config->interface[i]; | |
2155 | if (uif->altsetting[0].desc.bInterfaceClass == USB_CLASS_AUDIO) { | |
2156 | dev->has_audio_class = 1; | |
2157 | break; | |
2158 | } | |
2159 | } | |
2160 | ||
2161 | printk(KERN_INFO DRIVER_NAME " %s usb audio class\n", | |
2162 | dev->has_audio_class ? "Has" : "Doesn't have"); | |
2163 | ||
9d4d9c05 MCC |
2164 | /* compute alternate max packet sizes */ |
2165 | uif = udev->actconfig->interface[0]; | |
2166 | ||
6ea54d93 DSL |
2167 | dev->num_alt = uif->num_altsetting; |
2168 | em28xx_info("Alternate settings: %i\n", dev->num_alt); | |
2169 | /* dev->alt_max_pkt_size = kmalloc(sizeof(*dev->alt_max_pkt_size)* */ | |
2170 | dev->alt_max_pkt_size = kmalloc(32 * dev->num_alt, GFP_KERNEL); | |
2171 | ||
9d4d9c05 | 2172 | if (dev->alt_max_pkt_size == NULL) { |
e5589bef | 2173 | em28xx_errdev("out of memory!\n"); |
6ea54d93 | 2174 | em28xx_devused &= ~(1<<nr); |
1207cf84 | 2175 | kfree(dev); |
9d4d9c05 MCC |
2176 | return -ENOMEM; |
2177 | } | |
2178 | ||
2179 | for (i = 0; i < dev->num_alt ; i++) { | |
2180 | u16 tmp = le16_to_cpu(uif->altsetting[i].endpoint[1].desc. | |
2181 | wMaxPacketSize); | |
2182 | dev->alt_max_pkt_size[i] = | |
2183 | (tmp & 0x07ff) * (((tmp & 0x1800) >> 11) + 1); | |
6ea54d93 DSL |
2184 | em28xx_info("Alternate setting %i, max size= %i\n", i, |
2185 | dev->alt_max_pkt_size[i]); | |
9d4d9c05 MCC |
2186 | } |
2187 | ||
6ea54d93 | 2188 | if ((card[nr] >= 0) && (card[nr] < em28xx_bcount)) |
03910cc3 | 2189 | dev->model = card[nr]; |
596d92d5 | 2190 | |
a6c2ba28 | 2191 | /* allocate device struct */ |
03910cc3 | 2192 | retval = em28xx_init_dev(&dev, udev, nr); |
a6c2ba28 | 2193 | if (retval) |
2194 | return retval; | |
2195 | ||
03910cc3 | 2196 | em28xx_info("Found %s\n", em28xx_boards[dev->model].name); |
a6c2ba28 | 2197 | |
2198 | /* save our data pointer in this interface device */ | |
2199 | usb_set_intfdata(interface, dev); | |
d7448a8d MCC |
2200 | |
2201 | request_modules(dev); | |
2202 | ||
a6c2ba28 | 2203 | return 0; |
2204 | } | |
2205 | ||
2206 | /* | |
3acf2809 | 2207 | * em28xx_usb_disconnect() |
a6c2ba28 | 2208 | * called when the device gets diconencted |
2209 | * video device will be unregistered on v4l2_close in case it is still open | |
2210 | */ | |
3acf2809 | 2211 | static void em28xx_usb_disconnect(struct usb_interface *interface) |
a6c2ba28 | 2212 | { |
5a80415b | 2213 | struct em28xx *dev; |
6d79468d | 2214 | struct em28xx_ops *ops = NULL; |
5a80415b SS |
2215 | |
2216 | dev = usb_get_intfdata(interface); | |
a6c2ba28 | 2217 | usb_set_intfdata(interface, NULL); |
2218 | ||
2219 | if (!dev) | |
2220 | return; | |
2221 | ||
5a80415b | 2222 | em28xx_info("disconnecting %s\n", dev->vdev->name); |
a6c2ba28 | 2223 | |
6ea54d93 DSL |
2224 | /* wait until all current v4l2 io is finished then deallocate |
2225 | resources */ | |
3593cab5 | 2226 | mutex_lock(&dev->lock); |
a6c2ba28 | 2227 | |
a6c2ba28 | 2228 | wake_up_interruptible_all(&dev->open); |
2229 | ||
2230 | if (dev->users) { | |
3acf2809 | 2231 | em28xx_warn |
a6c2ba28 | 2232 | ("device /dev/video%d is open! Deregistration and memory " |
e5589bef MCC |
2233 | "deallocation are deferred on close.\n", |
2234 | dev->vdev->minor-MINOR_VFL_TYPE_GRABBER_MIN); | |
2235 | ||
a6c2ba28 | 2236 | dev->state |= DEV_MISCONFIGURED; |
3acf2809 | 2237 | em28xx_uninit_isoc(dev); |
a6c2ba28 | 2238 | dev->state |= DEV_DISCONNECTED; |
2239 | wake_up_interruptible(&dev->wait_frame); | |
2240 | wake_up_interruptible(&dev->wait_stream); | |
2241 | } else { | |
2242 | dev->state |= DEV_DISCONNECTED; | |
3acf2809 | 2243 | em28xx_release_resources(dev); |
a6c2ba28 | 2244 | } |
3593cab5 | 2245 | mutex_unlock(&dev->lock); |
a6c2ba28 | 2246 | |
6d79468d MCC |
2247 | mutex_lock(&em28xx_extension_devlist_lock); |
2248 | if (!list_empty(&em28xx_extension_devlist)) { | |
2249 | list_for_each_entry(ops, &em28xx_extension_devlist, next) { | |
2250 | ops->fini(dev); | |
2251 | } | |
2252 | } | |
2253 | mutex_unlock(&em28xx_extension_devlist_lock); | |
2254 | ||
9d4d9c05 MCC |
2255 | if (!dev->users) { |
2256 | kfree(dev->alt_max_pkt_size); | |
a6c2ba28 | 2257 | kfree(dev); |
9d4d9c05 | 2258 | } |
a6c2ba28 | 2259 | } |
2260 | ||
3acf2809 | 2261 | static struct usb_driver em28xx_usb_driver = { |
3acf2809 MCC |
2262 | .name = "em28xx", |
2263 | .probe = em28xx_usb_probe, | |
2264 | .disconnect = em28xx_usb_disconnect, | |
2265 | .id_table = em28xx_id_table, | |
a6c2ba28 | 2266 | }; |
2267 | ||
3acf2809 | 2268 | static int __init em28xx_module_init(void) |
a6c2ba28 | 2269 | { |
2270 | int result; | |
2271 | ||
2272 | printk(KERN_INFO DRIVER_NAME " v4l2 driver version %d.%d.%d loaded\n", | |
3acf2809 MCC |
2273 | (EM28XX_VERSION_CODE >> 16) & 0xff, |
2274 | (EM28XX_VERSION_CODE >> 8) & 0xff, EM28XX_VERSION_CODE & 0xff); | |
a6c2ba28 | 2275 | #ifdef SNAPSHOT |
2276 | printk(KERN_INFO DRIVER_NAME " snapshot date %04d-%02d-%02d\n", | |
2277 | SNAPSHOT / 10000, (SNAPSHOT / 100) % 100, SNAPSHOT % 100); | |
2278 | #endif | |
2279 | ||
2280 | /* register this driver with the USB subsystem */ | |
3acf2809 | 2281 | result = usb_register(&em28xx_usb_driver); |
a6c2ba28 | 2282 | if (result) |
3acf2809 | 2283 | em28xx_err(DRIVER_NAME |
a6c2ba28 | 2284 | " usb_register failed. Error number %d.\n", result); |
2285 | ||
2286 | return result; | |
2287 | } | |
2288 | ||
3acf2809 | 2289 | static void __exit em28xx_module_exit(void) |
a6c2ba28 | 2290 | { |
2291 | /* deregister this driver with the USB subsystem */ | |
3acf2809 | 2292 | usb_deregister(&em28xx_usb_driver); |
a6c2ba28 | 2293 | } |
2294 | ||
3acf2809 MCC |
2295 | module_init(em28xx_module_init); |
2296 | module_exit(em28xx_module_exit); |