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[mirror_ubuntu-bionic-kernel.git] / drivers / media / video / tlg2300 / pd-video.c
1 #include <linux/fs.h>
2 #include <linux/vmalloc.h>
3 #include <linux/videodev2.h>
4 #include <linux/usb.h>
5 #include <linux/mm.h>
6 #include <linux/sched.h>
7 #include <linux/slab.h>
8
9 #include <media/v4l2-ioctl.h>
10 #include <media/v4l2-dev.h>
11
12 #include "pd-common.h"
13 #include "vendorcmds.h"
14
15 #ifdef CONFIG_PM
16 static int pm_video_suspend(struct poseidon *pd);
17 static int pm_video_resume(struct poseidon *pd);
18 #endif
19 static void iso_bubble_handler(struct work_struct *w);
20
21 static int usb_transfer_mode;
22 module_param(usb_transfer_mode, int, 0644);
23 MODULE_PARM_DESC(usb_transfer_mode, "0 = Bulk, 1 = Isochronous");
24
25 static const struct poseidon_format poseidon_formats[] = {
26 { "YUV 422", V4L2_PIX_FMT_YUYV, 16, 0},
27 { "RGB565", V4L2_PIX_FMT_RGB565, 16, 0},
28 };
29
30 static const struct poseidon_tvnorm poseidon_tvnorms[] = {
31 { V4L2_STD_PAL_D, "PAL-D", TLG_TUNE_VSTD_PAL_D },
32 { V4L2_STD_PAL_B, "PAL-B", TLG_TUNE_VSTD_PAL_B },
33 { V4L2_STD_PAL_G, "PAL-G", TLG_TUNE_VSTD_PAL_G },
34 { V4L2_STD_PAL_H, "PAL-H", TLG_TUNE_VSTD_PAL_H },
35 { V4L2_STD_PAL_I, "PAL-I", TLG_TUNE_VSTD_PAL_I },
36 { V4L2_STD_PAL_M, "PAL-M", TLG_TUNE_VSTD_PAL_M },
37 { V4L2_STD_PAL_N, "PAL-N", TLG_TUNE_VSTD_PAL_N_COMBO },
38 { V4L2_STD_PAL_Nc, "PAL-Nc", TLG_TUNE_VSTD_PAL_N_COMBO },
39 { V4L2_STD_NTSC_M, "NTSC-M", TLG_TUNE_VSTD_NTSC_M },
40 { V4L2_STD_NTSC_M_JP, "NTSC-JP", TLG_TUNE_VSTD_NTSC_M_J },
41 { V4L2_STD_SECAM_B, "SECAM-B", TLG_TUNE_VSTD_SECAM_B },
42 { V4L2_STD_SECAM_D, "SECAM-D", TLG_TUNE_VSTD_SECAM_D },
43 { V4L2_STD_SECAM_G, "SECAM-G", TLG_TUNE_VSTD_SECAM_G },
44 { V4L2_STD_SECAM_H, "SECAM-H", TLG_TUNE_VSTD_SECAM_H },
45 { V4L2_STD_SECAM_K, "SECAM-K", TLG_TUNE_VSTD_SECAM_K },
46 { V4L2_STD_SECAM_K1, "SECAM-K1", TLG_TUNE_VSTD_SECAM_K1 },
47 { V4L2_STD_SECAM_L, "SECAM-L", TLG_TUNE_VSTD_SECAM_L },
48 { V4L2_STD_SECAM_LC, "SECAM-LC", TLG_TUNE_VSTD_SECAM_L1 },
49 };
50 static const unsigned int POSEIDON_TVNORMS = ARRAY_SIZE(poseidon_tvnorms);
51
52 struct pd_audio_mode {
53 u32 tlg_audio_mode;
54 u32 v4l2_audio_sub;
55 u32 v4l2_audio_mode;
56 };
57
58 static const struct pd_audio_mode pd_audio_modes[] = {
59 { TLG_TUNE_TVAUDIO_MODE_MONO, V4L2_TUNER_SUB_MONO,
60 V4L2_TUNER_MODE_MONO },
61 { TLG_TUNE_TVAUDIO_MODE_STEREO, V4L2_TUNER_SUB_STEREO,
62 V4L2_TUNER_MODE_STEREO },
63 { TLG_TUNE_TVAUDIO_MODE_LANG_A, V4L2_TUNER_SUB_LANG1,
64 V4L2_TUNER_MODE_LANG1 },
65 { TLG_TUNE_TVAUDIO_MODE_LANG_B, V4L2_TUNER_SUB_LANG2,
66 V4L2_TUNER_MODE_LANG2 },
67 { TLG_TUNE_TVAUDIO_MODE_LANG_C, V4L2_TUNER_SUB_LANG1,
68 V4L2_TUNER_MODE_LANG1_LANG2 }
69 };
70 static const unsigned int POSEIDON_AUDIOMODS = ARRAY_SIZE(pd_audio_modes);
71
72 struct pd_input {
73 char *name;
74 uint32_t tlg_src;
75 };
76
77 static const struct pd_input pd_inputs[] = {
78 { "TV Antenna", TLG_SIG_SRC_ANTENNA },
79 { "TV Cable", TLG_SIG_SRC_CABLE },
80 { "TV SVideo", TLG_SIG_SRC_SVIDEO },
81 { "TV Composite", TLG_SIG_SRC_COMPOSITE }
82 };
83 static const unsigned int POSEIDON_INPUTS = ARRAY_SIZE(pd_inputs);
84
85 struct poseidon_control {
86 struct v4l2_queryctrl v4l2_ctrl;
87 enum cmd_custom_param_id vc_id;
88 };
89
90 static struct poseidon_control controls[] = {
91 {
92 { V4L2_CID_BRIGHTNESS, V4L2_CTRL_TYPE_INTEGER,
93 "brightness", 0, 10000, 1, 100, 0, },
94 CUST_PARM_ID_BRIGHTNESS_CTRL
95 }, {
96 { V4L2_CID_CONTRAST, V4L2_CTRL_TYPE_INTEGER,
97 "contrast", 0, 10000, 1, 100, 0, },
98 CUST_PARM_ID_CONTRAST_CTRL,
99 }, {
100 { V4L2_CID_HUE, V4L2_CTRL_TYPE_INTEGER,
101 "hue", 0, 10000, 1, 100, 0, },
102 CUST_PARM_ID_HUE_CTRL,
103 }, {
104 { V4L2_CID_SATURATION, V4L2_CTRL_TYPE_INTEGER,
105 "saturation", 0, 10000, 1, 100, 0, },
106 CUST_PARM_ID_SATURATION_CTRL,
107 },
108 };
109
110 struct video_std_to_audio_std {
111 v4l2_std_id video_std;
112 int audio_std;
113 };
114
115 static const struct video_std_to_audio_std video_to_audio_map[] = {
116 /* country : { 27, 32, 33, 34, 36, 44, 45, 46, 47, 48, 64,
117 65, 86, 351, 352, 353, 354, 358, 372, 852, 972 } */
118 { (V4L2_STD_PAL_I | V4L2_STD_PAL_B | V4L2_STD_PAL_D |
119 V4L2_STD_SECAM_L | V4L2_STD_SECAM_D), TLG_TUNE_ASTD_NICAM },
120
121 /* country : { 1, 52, 54, 55, 886 } */
122 {V4L2_STD_NTSC_M | V4L2_STD_PAL_N | V4L2_STD_PAL_M, TLG_TUNE_ASTD_BTSC},
123
124 /* country : { 81 } */
125 { V4L2_STD_NTSC_M_JP, TLG_TUNE_ASTD_EIAJ },
126
127 /* other country : TLG_TUNE_ASTD_A2 */
128 };
129 static const unsigned int map_size = ARRAY_SIZE(video_to_audio_map);
130
131 static int get_audio_std(v4l2_std_id v4l2_std)
132 {
133 int i = 0;
134
135 for (; i < map_size; i++) {
136 if (v4l2_std & video_to_audio_map[i].video_std)
137 return video_to_audio_map[i].audio_std;
138 }
139 return TLG_TUNE_ASTD_A2;
140 }
141
142 static int vidioc_querycap(struct file *file, void *fh,
143 struct v4l2_capability *cap)
144 {
145 struct front_face *front = fh;
146 struct poseidon *p = front->pd;
147
148 logs(front);
149
150 strcpy(cap->driver, "tele-video");
151 strcpy(cap->card, "Telegent Poseidon");
152 usb_make_path(p->udev, cap->bus_info, sizeof(cap->bus_info));
153 cap->version = KERNEL_VERSION(0, 0, 1);
154 cap->capabilities = V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_TUNER |
155 V4L2_CAP_AUDIO | V4L2_CAP_STREAMING |
156 V4L2_CAP_READWRITE | V4L2_CAP_VBI_CAPTURE;
157 return 0;
158 }
159
160 /*====================================================================*/
161 static void init_copy(struct video_data *video, bool index)
162 {
163 struct front_face *front = video->front;
164
165 video->field_count = index;
166 video->lines_copied = 0;
167 video->prev_left = 0 ;
168 video->dst = (char *)videobuf_to_vmalloc(front->curr_frame)
169 + index * video->lines_size;
170 video->vbi->copied = 0; /* set it here */
171 }
172
173 static bool get_frame(struct front_face *front, int *need_init)
174 {
175 struct videobuf_buffer *vb = front->curr_frame;
176
177 if (vb)
178 return true;
179
180 spin_lock(&front->queue_lock);
181 if (!list_empty(&front->active)) {
182 vb = list_entry(front->active.next,
183 struct videobuf_buffer, queue);
184 if (need_init)
185 *need_init = 1;
186 front->curr_frame = vb;
187 list_del_init(&vb->queue);
188 }
189 spin_unlock(&front->queue_lock);
190
191 return !!vb;
192 }
193
194 /* check if the video's buffer is ready */
195 static bool get_video_frame(struct front_face *front, struct video_data *video)
196 {
197 int need_init = 0;
198 bool ret = true;
199
200 ret = get_frame(front, &need_init);
201 if (ret && need_init)
202 init_copy(video, 0);
203 return ret;
204 }
205
206 static void submit_frame(struct front_face *front)
207 {
208 struct videobuf_buffer *vb = front->curr_frame;
209
210 if (vb == NULL)
211 return;
212
213 front->curr_frame = NULL;
214 vb->state = VIDEOBUF_DONE;
215 vb->field_count++;
216 do_gettimeofday(&vb->ts);
217
218 wake_up(&vb->done);
219 }
220
221 /*
222 * A frame is composed of two fields. If we receive all the two fields,
223 * call the submit_frame() to submit the whole frame to applications.
224 */
225 static void end_field(struct video_data *video)
226 {
227 /* logs(video->front); */
228 if (1 == video->field_count)
229 submit_frame(video->front);
230 else
231 init_copy(video, 1);
232 }
233
234 static void copy_video_data(struct video_data *video, char *src,
235 unsigned int count)
236 {
237 #define copy_data(len) \
238 do { \
239 if (++video->lines_copied > video->lines_per_field) \
240 goto overflow; \
241 memcpy(video->dst, src, len);\
242 video->dst += len + video->lines_size; \
243 src += len; \
244 count -= len; \
245 } while (0)
246
247 while (count && count >= video->lines_size) {
248 if (video->prev_left) {
249 copy_data(video->prev_left);
250 video->prev_left = 0;
251 continue;
252 }
253 copy_data(video->lines_size);
254 }
255 if (count && count < video->lines_size) {
256 memcpy(video->dst, src, count);
257
258 video->prev_left = video->lines_size - count;
259 video->dst += count;
260 }
261 return;
262
263 overflow:
264 end_field(video);
265 }
266
267 static void check_trailer(struct video_data *video, char *src, int count)
268 {
269 struct vbi_data *vbi = video->vbi;
270 int offset; /* trailer's offset */
271 char *buf;
272
273 offset = (video->context.pix.sizeimage / 2 + vbi->vbi_size / 2)
274 - (vbi->copied + video->lines_size * video->lines_copied);
275 if (video->prev_left)
276 offset -= (video->lines_size - video->prev_left);
277
278 if (offset > count || offset <= 0)
279 goto short_package;
280
281 buf = src + offset;
282
283 /* trailer : (VFHS) + U32 + U32 + field_num */
284 if (!strncmp(buf, "VFHS", 4)) {
285 int field_num = *((u32 *)(buf + 12));
286
287 if ((field_num & 1) ^ video->field_count) {
288 init_copy(video, video->field_count);
289 return;
290 }
291 copy_video_data(video, src, offset);
292 }
293 short_package:
294 end_field(video);
295 }
296
297 /* ========== Check this more carefully! =========== */
298 static inline void copy_vbi_data(struct vbi_data *vbi,
299 char *src, unsigned int count)
300 {
301 struct front_face *front = vbi->front;
302
303 if (front && get_frame(front, NULL)) {
304 char *buf = videobuf_to_vmalloc(front->curr_frame);
305
306 if (vbi->video->field_count)
307 buf += (vbi->vbi_size / 2);
308 memcpy(buf + vbi->copied, src, count);
309 }
310 vbi->copied += count;
311 }
312
313 /*
314 * Copy the normal data (VBI or VIDEO) without the trailer.
315 * VBI is not interlaced, while VIDEO is interlaced.
316 */
317 static inline void copy_vbi_video_data(struct video_data *video,
318 char *src, unsigned int count)
319 {
320 struct vbi_data *vbi = video->vbi;
321 unsigned int vbi_delta = (vbi->vbi_size / 2) - vbi->copied;
322
323 if (vbi_delta >= count) {
324 copy_vbi_data(vbi, src, count);
325 } else {
326 if (vbi_delta) {
327 copy_vbi_data(vbi, src, vbi_delta);
328
329 /* we receive the two fields of the VBI*/
330 if (vbi->front && video->field_count)
331 submit_frame(vbi->front);
332 }
333 copy_video_data(video, src + vbi_delta, count - vbi_delta);
334 }
335 }
336
337 static void urb_complete_bulk(struct urb *urb)
338 {
339 struct front_face *front = urb->context;
340 struct video_data *video = &front->pd->video_data;
341 char *src = (char *)urb->transfer_buffer;
342 int count = urb->actual_length;
343 int ret = 0;
344
345 if (!video->is_streaming || urb->status) {
346 if (urb->status == -EPROTO)
347 goto resend_it;
348 return;
349 }
350 if (!get_video_frame(front, video))
351 goto resend_it;
352
353 if (count == urb->transfer_buffer_length)
354 copy_vbi_video_data(video, src, count);
355 else
356 check_trailer(video, src, count);
357
358 resend_it:
359 ret = usb_submit_urb(urb, GFP_ATOMIC);
360 if (ret)
361 log(" submit failed: error %d", ret);
362 }
363
364 /************************* for ISO *********************/
365 #define GET_SUCCESS (0)
366 #define GET_TRAILER (1)
367 #define GET_TOO_MUCH_BUBBLE (2)
368 #define GET_NONE (3)
369 static int get_chunk(int start, struct urb *urb,
370 int *head, int *tail, int *bubble_err)
371 {
372 struct usb_iso_packet_descriptor *pkt = NULL;
373 int ret = GET_SUCCESS;
374
375 for (*head = *tail = -1; start < urb->number_of_packets; start++) {
376 pkt = &urb->iso_frame_desc[start];
377
378 /* handle the bubble of the Hub */
379 if (-EOVERFLOW == pkt->status) {
380 if (++*bubble_err > urb->number_of_packets / 3)
381 return GET_TOO_MUCH_BUBBLE;
382 continue;
383 }
384
385 /* This is the gap */
386 if (pkt->status || pkt->actual_length <= 0
387 || pkt->actual_length > ISO_PKT_SIZE) {
388 if (*head != -1)
389 break;
390 continue;
391 }
392
393 /* a good isochronous packet */
394 if (pkt->actual_length == ISO_PKT_SIZE) {
395 if (*head == -1)
396 *head = start;
397 *tail = start;
398 continue;
399 }
400
401 /* trailer is here */
402 if (pkt->actual_length < ISO_PKT_SIZE) {
403 if (*head == -1) {
404 *head = start;
405 *tail = start;
406 return GET_TRAILER;
407 }
408 break;
409 }
410 }
411
412 if (*head == -1 && *tail == -1)
413 ret = GET_NONE;
414 return ret;
415 }
416
417 /*
418 * |__|------|___|-----|_______|
419 * ^ ^
420 * | |
421 * gap gap
422 */
423 static void urb_complete_iso(struct urb *urb)
424 {
425 struct front_face *front = urb->context;
426 struct video_data *video = &front->pd->video_data;
427 int bubble_err = 0, head = 0, tail = 0;
428 char *src = (char *)urb->transfer_buffer;
429 int ret = 0;
430
431 if (!video->is_streaming)
432 return;
433
434 do {
435 if (!get_video_frame(front, video))
436 goto out;
437
438 switch (get_chunk(head, urb, &head, &tail, &bubble_err)) {
439 case GET_SUCCESS:
440 copy_vbi_video_data(video, src + (head * ISO_PKT_SIZE),
441 (tail - head + 1) * ISO_PKT_SIZE);
442 break;
443 case GET_TRAILER:
444 check_trailer(video, src + (head * ISO_PKT_SIZE),
445 ISO_PKT_SIZE);
446 break;
447 case GET_NONE:
448 goto out;
449 case GET_TOO_MUCH_BUBBLE:
450 log("\t We got too much bubble");
451 schedule_work(&video->bubble_work);
452 return;
453 }
454 } while (head = tail + 1, head < urb->number_of_packets);
455
456 out:
457 ret = usb_submit_urb(urb, GFP_ATOMIC);
458 if (ret)
459 log("usb_submit_urb err : %d", ret);
460 }
461 /*============================= [ end ] =====================*/
462
463 static int prepare_iso_urb(struct video_data *video)
464 {
465 struct usb_device *udev = video->pd->udev;
466 int i;
467
468 if (video->urb_array[0])
469 return 0;
470
471 for (i = 0; i < SBUF_NUM; i++) {
472 struct urb *urb;
473 void *mem;
474 int j;
475
476 urb = usb_alloc_urb(PK_PER_URB, GFP_KERNEL);
477 if (urb == NULL)
478 goto out;
479
480 video->urb_array[i] = urb;
481 mem = usb_alloc_coherent(udev,
482 ISO_PKT_SIZE * PK_PER_URB,
483 GFP_KERNEL,
484 &urb->transfer_dma);
485
486 urb->complete = urb_complete_iso; /* handler */
487 urb->dev = udev;
488 urb->context = video->front;
489 urb->pipe = usb_rcvisocpipe(udev,
490 video->endpoint_addr);
491 urb->interval = 1;
492 urb->transfer_flags = URB_ISO_ASAP | URB_NO_TRANSFER_DMA_MAP;
493 urb->number_of_packets = PK_PER_URB;
494 urb->transfer_buffer = mem;
495 urb->transfer_buffer_length = PK_PER_URB * ISO_PKT_SIZE;
496
497 for (j = 0; j < PK_PER_URB; j++) {
498 urb->iso_frame_desc[j].offset = ISO_PKT_SIZE * j;
499 urb->iso_frame_desc[j].length = ISO_PKT_SIZE;
500 }
501 }
502 return 0;
503 out:
504 for (; i > 0; i--)
505 ;
506 return -ENOMEM;
507 }
508
509 /* return the succeeded number of the allocation */
510 int alloc_bulk_urbs_generic(struct urb **urb_array, int num,
511 struct usb_device *udev, u8 ep_addr,
512 int buf_size, gfp_t gfp_flags,
513 usb_complete_t complete_fn, void *context)
514 {
515 int i = 0;
516
517 for (; i < num; i++) {
518 void *mem;
519 struct urb *urb = usb_alloc_urb(0, gfp_flags);
520 if (urb == NULL)
521 return i;
522
523 mem = usb_alloc_coherent(udev, buf_size, gfp_flags,
524 &urb->transfer_dma);
525 if (mem == NULL) {
526 usb_free_urb(urb);
527 return i;
528 }
529
530 usb_fill_bulk_urb(urb, udev, usb_rcvbulkpipe(udev, ep_addr),
531 mem, buf_size, complete_fn, context);
532 urb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
533 urb_array[i] = urb;
534 }
535 return i;
536 }
537
538 void free_all_urb_generic(struct urb **urb_array, int num)
539 {
540 int i;
541 struct urb *urb;
542
543 for (i = 0; i < num; i++) {
544 urb = urb_array[i];
545 if (urb) {
546 usb_free_coherent(urb->dev,
547 urb->transfer_buffer_length,
548 urb->transfer_buffer,
549 urb->transfer_dma);
550 usb_free_urb(urb);
551 urb_array[i] = NULL;
552 }
553 }
554 }
555
556 static int prepare_bulk_urb(struct video_data *video)
557 {
558 if (video->urb_array[0])
559 return 0;
560
561 alloc_bulk_urbs_generic(video->urb_array, SBUF_NUM,
562 video->pd->udev, video->endpoint_addr,
563 0x2000, GFP_KERNEL,
564 urb_complete_bulk, video->front);
565 return 0;
566 }
567
568 /* free the URBs */
569 static void free_all_urb(struct video_data *video)
570 {
571 free_all_urb_generic(video->urb_array, SBUF_NUM);
572 }
573
574 static void pd_buf_release(struct videobuf_queue *q, struct videobuf_buffer *vb)
575 {
576 videobuf_vmalloc_free(vb);
577 vb->state = VIDEOBUF_NEEDS_INIT;
578 }
579
580 static void pd_buf_queue(struct videobuf_queue *q, struct videobuf_buffer *vb)
581 {
582 struct front_face *front = q->priv_data;
583 vb->state = VIDEOBUF_QUEUED;
584 list_add_tail(&vb->queue, &front->active);
585 }
586
587 static int pd_buf_prepare(struct videobuf_queue *q, struct videobuf_buffer *vb,
588 enum v4l2_field field)
589 {
590 struct front_face *front = q->priv_data;
591 int rc;
592
593 switch (front->type) {
594 case V4L2_BUF_TYPE_VIDEO_CAPTURE:
595 if (VIDEOBUF_NEEDS_INIT == vb->state) {
596 struct v4l2_pix_format *pix;
597
598 pix = &front->pd->video_data.context.pix;
599 vb->size = pix->sizeimage; /* real frame size */
600 vb->width = pix->width;
601 vb->height = pix->height;
602 rc = videobuf_iolock(q, vb, NULL);
603 if (rc < 0)
604 return rc;
605 }
606 break;
607 case V4L2_BUF_TYPE_VBI_CAPTURE:
608 if (VIDEOBUF_NEEDS_INIT == vb->state) {
609 vb->size = front->pd->vbi_data.vbi_size;
610 rc = videobuf_iolock(q, vb, NULL);
611 if (rc < 0)
612 return rc;
613 }
614 break;
615 default:
616 return -EINVAL;
617 }
618 vb->field = field;
619 vb->state = VIDEOBUF_PREPARED;
620 return 0;
621 }
622
623 static int fire_all_urb(struct video_data *video)
624 {
625 int i, ret;
626
627 video->is_streaming = 1;
628
629 for (i = 0; i < SBUF_NUM; i++) {
630 ret = usb_submit_urb(video->urb_array[i], GFP_KERNEL);
631 if (ret)
632 log("(%d) failed: error %d", i, ret);
633 }
634 return ret;
635 }
636
637 static int start_video_stream(struct poseidon *pd)
638 {
639 struct video_data *video = &pd->video_data;
640 s32 cmd_status;
641
642 send_set_req(pd, TAKE_REQUEST, 0, &cmd_status);
643 send_set_req(pd, PLAY_SERVICE, TLG_TUNE_PLAY_SVC_START, &cmd_status);
644
645 if (pd->cur_transfer_mode) {
646 prepare_iso_urb(video);
647 INIT_WORK(&video->bubble_work, iso_bubble_handler);
648 } else {
649 /* The bulk mode does not need a bubble handler */
650 prepare_bulk_urb(video);
651 }
652 fire_all_urb(video);
653 return 0;
654 }
655
656 static int pd_buf_setup(struct videobuf_queue *q, unsigned int *count,
657 unsigned int *size)
658 {
659 struct front_face *front = q->priv_data;
660 struct poseidon *pd = front->pd;
661
662 switch (front->type) {
663 default:
664 return -EINVAL;
665 case V4L2_BUF_TYPE_VIDEO_CAPTURE: {
666 struct video_data *video = &pd->video_data;
667 struct v4l2_pix_format *pix = &video->context.pix;
668
669 *size = PAGE_ALIGN(pix->sizeimage);/* page aligned frame size */
670 if (*count < 4)
671 *count = 4;
672 if (1) {
673 /* same in different altersetting */
674 video->endpoint_addr = 0x82;
675 video->vbi = &pd->vbi_data;
676 video->vbi->video = video;
677 video->pd = pd;
678 video->lines_per_field = pix->height / 2;
679 video->lines_size = pix->width * 2;
680 video->front = front;
681 }
682 return start_video_stream(pd);
683 }
684
685 case V4L2_BUF_TYPE_VBI_CAPTURE: {
686 struct vbi_data *vbi = &pd->vbi_data;
687
688 *size = PAGE_ALIGN(vbi->vbi_size);
689 log("size : %d", *size);
690 if (*count == 0)
691 *count = 4;
692 }
693 break;
694 }
695 return 0;
696 }
697
698 static struct videobuf_queue_ops pd_video_qops = {
699 .buf_setup = pd_buf_setup,
700 .buf_prepare = pd_buf_prepare,
701 .buf_queue = pd_buf_queue,
702 .buf_release = pd_buf_release,
703 };
704
705 static int vidioc_enum_fmt(struct file *file, void *fh,
706 struct v4l2_fmtdesc *f)
707 {
708 if (ARRAY_SIZE(poseidon_formats) <= f->index)
709 return -EINVAL;
710 f->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
711 f->flags = 0;
712 f->pixelformat = poseidon_formats[f->index].fourcc;
713 strcpy(f->description, poseidon_formats[f->index].name);
714 return 0;
715 }
716
717 static int vidioc_g_fmt(struct file *file, void *fh, struct v4l2_format *f)
718 {
719 struct front_face *front = fh;
720 struct poseidon *pd = front->pd;
721
722 logs(front);
723 f->fmt.pix = pd->video_data.context.pix;
724 return 0;
725 }
726
727 static int vidioc_try_fmt(struct file *file, void *fh,
728 struct v4l2_format *f)
729 {
730 return 0;
731 }
732
733 /*
734 * VLC calls VIDIOC_S_STD before VIDIOC_S_FMT, while
735 * Mplayer calls them in the reverse order.
736 */
737 static int pd_vidioc_s_fmt(struct poseidon *pd, struct v4l2_pix_format *pix)
738 {
739 struct video_data *video = &pd->video_data;
740 struct running_context *context = &video->context;
741 struct v4l2_pix_format *pix_def = &context->pix;
742 s32 ret = 0, cmd_status = 0, vid_resol;
743
744 /* set the pixel format to firmware */
745 if (pix->pixelformat == V4L2_PIX_FMT_RGB565) {
746 vid_resol = TLG_TUNER_VID_FORMAT_RGB_565;
747 } else {
748 pix->pixelformat = V4L2_PIX_FMT_YUYV;
749 vid_resol = TLG_TUNER_VID_FORMAT_YUV;
750 }
751 ret = send_set_req(pd, VIDEO_STREAM_FMT_SEL,
752 vid_resol, &cmd_status);
753
754 /* set the resolution to firmware */
755 vid_resol = TLG_TUNE_VID_RES_720;
756 switch (pix->width) {
757 case 704:
758 vid_resol = TLG_TUNE_VID_RES_704;
759 break;
760 default:
761 pix->width = 720;
762 case 720:
763 break;
764 }
765 ret |= send_set_req(pd, VIDEO_ROSOLU_SEL,
766 vid_resol, &cmd_status);
767 if (ret || cmd_status)
768 return -EBUSY;
769
770 pix_def->pixelformat = pix->pixelformat; /* save it */
771 pix->height = (context->tvnormid & V4L2_STD_525_60) ? 480 : 576;
772
773 /* Compare with the default setting */
774 if ((pix_def->width != pix->width)
775 || (pix_def->height != pix->height)) {
776 pix_def->width = pix->width;
777 pix_def->height = pix->height;
778 pix_def->bytesperline = pix->width * 2;
779 pix_def->sizeimage = pix->width * pix->height * 2;
780 }
781 *pix = *pix_def;
782
783 return 0;
784 }
785
786 static int vidioc_s_fmt(struct file *file, void *fh, struct v4l2_format *f)
787 {
788 struct front_face *front = fh;
789 struct poseidon *pd = front->pd;
790
791 logs(front);
792 /* stop VBI here */
793 if (V4L2_BUF_TYPE_VIDEO_CAPTURE != f->type)
794 return -EINVAL;
795
796 mutex_lock(&pd->lock);
797 if (pd->file_for_stream == NULL)
798 pd->file_for_stream = file;
799 else if (file != pd->file_for_stream) {
800 mutex_unlock(&pd->lock);
801 return -EINVAL;
802 }
803
804 pd_vidioc_s_fmt(pd, &f->fmt.pix);
805 mutex_unlock(&pd->lock);
806 return 0;
807 }
808
809 static int vidioc_g_fmt_vbi(struct file *file, void *fh,
810 struct v4l2_format *v4l2_f)
811 {
812 struct front_face *front = fh;
813 struct poseidon *pd = front->pd;
814 struct v4l2_vbi_format *vbi_fmt = &v4l2_f->fmt.vbi;
815
816 vbi_fmt->samples_per_line = 720 * 2;
817 vbi_fmt->sampling_rate = 6750000 * 4;
818 vbi_fmt->sample_format = V4L2_PIX_FMT_GREY;
819 vbi_fmt->offset = 64 * 4; /*FIXME: why offset */
820 if (pd->video_data.context.tvnormid & V4L2_STD_525_60) {
821 vbi_fmt->start[0] = 10;
822 vbi_fmt->start[1] = 264;
823 vbi_fmt->count[0] = V4L_NTSC_VBI_LINES;
824 vbi_fmt->count[1] = V4L_NTSC_VBI_LINES;
825 } else {
826 vbi_fmt->start[0] = 6;
827 vbi_fmt->start[1] = 314;
828 vbi_fmt->count[0] = V4L_PAL_VBI_LINES;
829 vbi_fmt->count[1] = V4L_PAL_VBI_LINES;
830 }
831 vbi_fmt->flags = V4L2_VBI_UNSYNC;
832 logs(front);
833 return 0;
834 }
835
836 static int set_std(struct poseidon *pd, v4l2_std_id *norm)
837 {
838 struct video_data *video = &pd->video_data;
839 struct vbi_data *vbi = &pd->vbi_data;
840 struct running_context *context;
841 struct v4l2_pix_format *pix;
842 s32 i, ret = 0, cmd_status, param;
843 int height;
844
845 for (i = 0; i < POSEIDON_TVNORMS; i++) {
846 if (*norm & poseidon_tvnorms[i].v4l2_id) {
847 param = poseidon_tvnorms[i].tlg_tvnorm;
848 log("name : %s", poseidon_tvnorms[i].name);
849 goto found;
850 }
851 }
852 return -EINVAL;
853 found:
854 mutex_lock(&pd->lock);
855 ret = send_set_req(pd, VIDEO_STD_SEL, param, &cmd_status);
856 if (ret || cmd_status)
857 goto out;
858
859 /* Set vbi size and check the height of the frame */
860 context = &video->context;
861 context->tvnormid = poseidon_tvnorms[i].v4l2_id;
862 if (context->tvnormid & V4L2_STD_525_60) {
863 vbi->vbi_size = V4L_NTSC_VBI_FRAMESIZE;
864 height = 480;
865 } else {
866 vbi->vbi_size = V4L_PAL_VBI_FRAMESIZE;
867 height = 576;
868 }
869
870 pix = &context->pix;
871 if (pix->height != height) {
872 pix->height = height;
873 pix->sizeimage = pix->width * pix->height * 2;
874 }
875
876 out:
877 mutex_unlock(&pd->lock);
878 return ret;
879 }
880
881 static int vidioc_s_std(struct file *file, void *fh, v4l2_std_id *norm)
882 {
883 struct front_face *front = fh;
884 logs(front);
885 return set_std(front->pd, norm);
886 }
887
888 static int vidioc_enum_input(struct file *file, void *fh, struct v4l2_input *in)
889 {
890 struct front_face *front = fh;
891
892 if (in->index < 0 || in->index >= POSEIDON_INPUTS)
893 return -EINVAL;
894 strcpy(in->name, pd_inputs[in->index].name);
895 in->type = V4L2_INPUT_TYPE_TUNER;
896
897 /*
898 * the audio input index mixed with this video input,
899 * Poseidon only have one audio/video, set to "0"
900 */
901 in->audioset = 0;
902 in->tuner = 0;
903 in->std = V4L2_STD_ALL;
904 in->status = 0;
905 logs(front);
906 return 0;
907 }
908
909 static int vidioc_g_input(struct file *file, void *fh, unsigned int *i)
910 {
911 struct front_face *front = fh;
912 struct poseidon *pd = front->pd;
913 struct running_context *context = &pd->video_data.context;
914
915 logs(front);
916 *i = context->sig_index;
917 return 0;
918 }
919
920 /* We can support several inputs */
921 static int vidioc_s_input(struct file *file, void *fh, unsigned int i)
922 {
923 struct front_face *front = fh;
924 struct poseidon *pd = front->pd;
925 s32 ret, cmd_status;
926
927 if (i < 0 || i >= POSEIDON_INPUTS)
928 return -EINVAL;
929 ret = send_set_req(pd, SGNL_SRC_SEL,
930 pd_inputs[i].tlg_src, &cmd_status);
931 if (ret)
932 return ret;
933
934 pd->video_data.context.sig_index = i;
935 return 0;
936 }
937
938 static struct poseidon_control *check_control_id(__u32 id)
939 {
940 struct poseidon_control *control = &controls[0];
941 int array_size = ARRAY_SIZE(controls);
942
943 for (; control < &controls[array_size]; control++)
944 if (control->v4l2_ctrl.id == id)
945 return control;
946 return NULL;
947 }
948
949 static int vidioc_queryctrl(struct file *file, void *fh,
950 struct v4l2_queryctrl *a)
951 {
952 struct poseidon_control *control = NULL;
953
954 control = check_control_id(a->id);
955 if (!control)
956 return -EINVAL;
957
958 *a = control->v4l2_ctrl;
959 return 0;
960 }
961
962 static int vidioc_g_ctrl(struct file *file, void *fh, struct v4l2_control *ctrl)
963 {
964 struct front_face *front = fh;
965 struct poseidon *pd = front->pd;
966 struct poseidon_control *control = NULL;
967 struct tuner_custom_parameter_s tuner_param;
968 s32 ret = 0, cmd_status;
969
970 control = check_control_id(ctrl->id);
971 if (!control)
972 return -EINVAL;
973
974 mutex_lock(&pd->lock);
975 ret = send_get_req(pd, TUNER_CUSTOM_PARAMETER, control->vc_id,
976 &tuner_param, &cmd_status, sizeof(tuner_param));
977 mutex_unlock(&pd->lock);
978
979 if (ret || cmd_status)
980 return -1;
981
982 ctrl->value = tuner_param.param_value;
983 return 0;
984 }
985
986 static int vidioc_s_ctrl(struct file *file, void *fh, struct v4l2_control *a)
987 {
988 struct tuner_custom_parameter_s param = {0};
989 struct poseidon_control *control = NULL;
990 struct front_face *front = fh;
991 struct poseidon *pd = front->pd;
992 s32 ret = 0, cmd_status, params;
993
994 control = check_control_id(a->id);
995 if (!control)
996 return -EINVAL;
997
998 param.param_value = a->value;
999 param.param_id = control->vc_id;
1000 params = *(s32 *)&param; /* temp code */
1001
1002 mutex_lock(&pd->lock);
1003 ret = send_set_req(pd, TUNER_CUSTOM_PARAMETER, params, &cmd_status);
1004 ret = send_set_req(pd, TAKE_REQUEST, 0, &cmd_status);
1005 mutex_unlock(&pd->lock);
1006
1007 set_current_state(TASK_INTERRUPTIBLE);
1008 schedule_timeout(HZ/4);
1009 return ret;
1010 }
1011
1012 /* Audio ioctls */
1013 static int vidioc_enumaudio(struct file *file, void *fh, struct v4l2_audio *a)
1014 {
1015 if (0 != a->index)
1016 return -EINVAL;
1017 a->capability = V4L2_AUDCAP_STEREO;
1018 strcpy(a->name, "USB audio in");
1019 /*Poseidon have no AVL function.*/
1020 a->mode = 0;
1021 return 0;
1022 }
1023
1024 static int vidioc_g_audio(struct file *file, void *fh, struct v4l2_audio *a)
1025 {
1026 a->index = 0;
1027 a->capability = V4L2_AUDCAP_STEREO;
1028 strcpy(a->name, "USB audio in");
1029 a->mode = 0;
1030 return 0;
1031 }
1032
1033 static int vidioc_s_audio(struct file *file, void *fh, struct v4l2_audio *a)
1034 {
1035 return (0 == a->index) ? 0 : -EINVAL;
1036 }
1037
1038 /* Tuner ioctls */
1039 static int vidioc_g_tuner(struct file *file, void *fh, struct v4l2_tuner *tuner)
1040 {
1041 struct front_face *front = fh;
1042 struct poseidon *pd = front->pd;
1043 struct tuner_atv_sig_stat_s atv_stat;
1044 s32 count = 5, ret, cmd_status;
1045 int index;
1046
1047 if (0 != tuner->index)
1048 return -EINVAL;
1049
1050 mutex_lock(&pd->lock);
1051 ret = send_get_req(pd, TUNER_STATUS, TLG_MODE_ANALOG_TV,
1052 &atv_stat, &cmd_status, sizeof(atv_stat));
1053
1054 while (atv_stat.sig_lock_busy && count-- && !ret) {
1055 set_current_state(TASK_INTERRUPTIBLE);
1056 schedule_timeout(HZ);
1057
1058 ret = send_get_req(pd, TUNER_STATUS, TLG_MODE_ANALOG_TV,
1059 &atv_stat, &cmd_status, sizeof(atv_stat));
1060 }
1061 mutex_unlock(&pd->lock);
1062
1063 if (debug_mode)
1064 log("P:%d,S:%d", atv_stat.sig_present, atv_stat.sig_strength);
1065
1066 if (ret || cmd_status)
1067 tuner->signal = 0;
1068 else if (atv_stat.sig_present && !atv_stat.sig_strength)
1069 tuner->signal = 0xFFFF;
1070 else
1071 tuner->signal = (atv_stat.sig_strength * 255 / 10) << 8;
1072
1073 strcpy(tuner->name, "Telegent Systems");
1074 tuner->type = V4L2_TUNER_ANALOG_TV;
1075 tuner->rangelow = TUNER_FREQ_MIN / 62500;
1076 tuner->rangehigh = TUNER_FREQ_MAX / 62500;
1077 tuner->capability = V4L2_TUNER_CAP_NORM | V4L2_TUNER_CAP_STEREO |
1078 V4L2_TUNER_CAP_LANG1 | V4L2_TUNER_CAP_LANG2;
1079 index = pd->video_data.context.audio_idx;
1080 tuner->rxsubchans = pd_audio_modes[index].v4l2_audio_sub;
1081 tuner->audmode = pd_audio_modes[index].v4l2_audio_mode;
1082 tuner->afc = 0;
1083 logs(front);
1084 return 0;
1085 }
1086
1087 static int pd_vidioc_s_tuner(struct poseidon *pd, int index)
1088 {
1089 s32 ret = 0, cmd_status, param, audiomode;
1090
1091 mutex_lock(&pd->lock);
1092 param = pd_audio_modes[index].tlg_audio_mode;
1093 ret = send_set_req(pd, TUNER_AUD_MODE, param, &cmd_status);
1094 audiomode = get_audio_std(pd->video_data.context.tvnormid);
1095 ret |= send_set_req(pd, TUNER_AUD_ANA_STD, audiomode,
1096 &cmd_status);
1097 if (!ret)
1098 pd->video_data.context.audio_idx = index;
1099 mutex_unlock(&pd->lock);
1100 return ret;
1101 }
1102
1103 static int vidioc_s_tuner(struct file *file, void *fh, struct v4l2_tuner *a)
1104 {
1105 struct front_face *front = fh;
1106 struct poseidon *pd = front->pd;
1107 int index;
1108
1109 if (0 != a->index)
1110 return -EINVAL;
1111 logs(front);
1112 for (index = 0; index < POSEIDON_AUDIOMODS; index++)
1113 if (a->audmode == pd_audio_modes[index].v4l2_audio_mode)
1114 return pd_vidioc_s_tuner(pd, index);
1115 return -EINVAL;
1116 }
1117
1118 static int vidioc_g_frequency(struct file *file, void *fh,
1119 struct v4l2_frequency *freq)
1120 {
1121 struct front_face *front = fh;
1122 struct poseidon *pd = front->pd;
1123 struct running_context *context = &pd->video_data.context;
1124
1125 if (0 != freq->tuner)
1126 return -EINVAL;
1127 freq->frequency = context->freq;
1128 freq->type = V4L2_TUNER_ANALOG_TV;
1129 return 0;
1130 }
1131
1132 static int set_frequency(struct poseidon *pd, __u32 frequency)
1133 {
1134 s32 ret = 0, param, cmd_status;
1135 struct running_context *context = &pd->video_data.context;
1136
1137 param = frequency * 62500 / 1000;
1138 if (param < TUNER_FREQ_MIN/1000 || param > TUNER_FREQ_MAX / 1000)
1139 return -EINVAL;
1140
1141 mutex_lock(&pd->lock);
1142 ret = send_set_req(pd, TUNE_FREQ_SELECT, param, &cmd_status);
1143 ret = send_set_req(pd, TAKE_REQUEST, 0, &cmd_status);
1144
1145 msleep(250); /* wait for a while until the hardware is ready. */
1146 context->freq = frequency;
1147 mutex_unlock(&pd->lock);
1148 return ret;
1149 }
1150
1151 static int vidioc_s_frequency(struct file *file, void *fh,
1152 struct v4l2_frequency *freq)
1153 {
1154 struct front_face *front = fh;
1155 struct poseidon *pd = front->pd;
1156
1157 logs(front);
1158 #ifdef CONFIG_PM
1159 pd->pm_suspend = pm_video_suspend;
1160 pd->pm_resume = pm_video_resume;
1161 #endif
1162 return set_frequency(pd, freq->frequency);
1163 }
1164
1165 static int vidioc_reqbufs(struct file *file, void *fh,
1166 struct v4l2_requestbuffers *b)
1167 {
1168 struct front_face *front = file->private_data;
1169 logs(front);
1170 return videobuf_reqbufs(&front->q, b);
1171 }
1172
1173 static int vidioc_querybuf(struct file *file, void *fh, struct v4l2_buffer *b)
1174 {
1175 struct front_face *front = file->private_data;
1176 logs(front);
1177 return videobuf_querybuf(&front->q, b);
1178 }
1179
1180 static int vidioc_qbuf(struct file *file, void *fh, struct v4l2_buffer *b)
1181 {
1182 struct front_face *front = file->private_data;
1183 return videobuf_qbuf(&front->q, b);
1184 }
1185
1186 static int vidioc_dqbuf(struct file *file, void *fh, struct v4l2_buffer *b)
1187 {
1188 struct front_face *front = file->private_data;
1189 return videobuf_dqbuf(&front->q, b, file->f_flags & O_NONBLOCK);
1190 }
1191
1192 /* Just stop the URBs, do not free the URBs */
1193 static int usb_transfer_stop(struct video_data *video)
1194 {
1195 if (video->is_streaming) {
1196 int i;
1197 s32 cmd_status;
1198 struct poseidon *pd = video->pd;
1199
1200 video->is_streaming = 0;
1201 for (i = 0; i < SBUF_NUM; ++i) {
1202 if (video->urb_array[i])
1203 usb_kill_urb(video->urb_array[i]);
1204 }
1205
1206 send_set_req(pd, PLAY_SERVICE, TLG_TUNE_PLAY_SVC_STOP,
1207 &cmd_status);
1208 }
1209 return 0;
1210 }
1211
1212 int stop_all_video_stream(struct poseidon *pd)
1213 {
1214 struct video_data *video = &pd->video_data;
1215 struct vbi_data *vbi = &pd->vbi_data;
1216
1217 mutex_lock(&pd->lock);
1218 if (video->is_streaming) {
1219 struct front_face *front = video->front;
1220
1221 /* stop the URBs */
1222 usb_transfer_stop(video);
1223 free_all_urb(video);
1224
1225 /* stop the host side of VIDEO */
1226 videobuf_stop(&front->q);
1227 videobuf_mmap_free(&front->q);
1228
1229 /* stop the host side of VBI */
1230 front = vbi->front;
1231 if (front) {
1232 videobuf_stop(&front->q);
1233 videobuf_mmap_free(&front->q);
1234 }
1235 }
1236 mutex_unlock(&pd->lock);
1237 return 0;
1238 }
1239
1240 /*
1241 * The bubbles can seriously damage the video's quality,
1242 * though it occurs in very rare situation.
1243 */
1244 static void iso_bubble_handler(struct work_struct *w)
1245 {
1246 struct video_data *video;
1247 struct poseidon *pd;
1248
1249 video = container_of(w, struct video_data, bubble_work);
1250 pd = video->pd;
1251
1252 mutex_lock(&pd->lock);
1253 usb_transfer_stop(video);
1254 msleep(500);
1255 start_video_stream(pd);
1256 mutex_unlock(&pd->lock);
1257 }
1258
1259
1260 static int vidioc_streamon(struct file *file, void *fh,
1261 enum v4l2_buf_type type)
1262 {
1263 struct front_face *front = fh;
1264
1265 logs(front);
1266 if (unlikely(type != front->type))
1267 return -EINVAL;
1268 return videobuf_streamon(&front->q);
1269 }
1270
1271 static int vidioc_streamoff(struct file *file, void *fh,
1272 enum v4l2_buf_type type)
1273 {
1274 struct front_face *front = file->private_data;
1275
1276 logs(front);
1277 if (unlikely(type != front->type))
1278 return -EINVAL;
1279 return videobuf_streamoff(&front->q);
1280 }
1281
1282 /* Set the firmware's default values : need altersetting */
1283 static int pd_video_checkmode(struct poseidon *pd)
1284 {
1285 s32 ret = 0, cmd_status, audiomode;
1286
1287 set_current_state(TASK_INTERRUPTIBLE);
1288 schedule_timeout(HZ/2);
1289
1290 /* choose the altersetting */
1291 ret = usb_set_interface(pd->udev, 0,
1292 (pd->cur_transfer_mode ?
1293 ISO_3K_BULK_ALTERNATE_IFACE :
1294 BULK_ALTERNATE_IFACE));
1295 if (ret < 0)
1296 goto error;
1297
1298 /* set default parameters for PAL-D , with the VBI enabled*/
1299 ret = set_tuner_mode(pd, TLG_MODE_ANALOG_TV);
1300 ret |= send_set_req(pd, SGNL_SRC_SEL,
1301 TLG_SIG_SRC_ANTENNA, &cmd_status);
1302 ret |= send_set_req(pd, VIDEO_STD_SEL,
1303 TLG_TUNE_VSTD_PAL_D, &cmd_status);
1304 ret |= send_set_req(pd, VIDEO_STREAM_FMT_SEL,
1305 TLG_TUNER_VID_FORMAT_YUV, &cmd_status);
1306 ret |= send_set_req(pd, VIDEO_ROSOLU_SEL,
1307 TLG_TUNE_VID_RES_720, &cmd_status);
1308 ret |= send_set_req(pd, TUNE_FREQ_SELECT, TUNER_FREQ_MIN, &cmd_status);
1309 ret |= send_set_req(pd, VBI_DATA_SEL, 1, &cmd_status);/* enable vbi */
1310
1311 /* set the audio */
1312 audiomode = get_audio_std(pd->video_data.context.tvnormid);
1313 ret |= send_set_req(pd, TUNER_AUD_ANA_STD, audiomode, &cmd_status);
1314 ret |= send_set_req(pd, TUNER_AUD_MODE,
1315 TLG_TUNE_TVAUDIO_MODE_STEREO, &cmd_status);
1316 ret |= send_set_req(pd, AUDIO_SAMPLE_RATE_SEL,
1317 ATV_AUDIO_RATE_48K, &cmd_status);
1318 error:
1319 return ret;
1320 }
1321
1322 #ifdef CONFIG_PM
1323 static int pm_video_suspend(struct poseidon *pd)
1324 {
1325 /* stop audio */
1326 pm_alsa_suspend(pd);
1327
1328 /* stop and free all the URBs */
1329 usb_transfer_stop(&pd->video_data);
1330 free_all_urb(&pd->video_data);
1331
1332 /* reset the interface */
1333 usb_set_interface(pd->udev, 0, 0);
1334 msleep(300);
1335 return 0;
1336 }
1337
1338 static int restore_v4l2_context(struct poseidon *pd,
1339 struct running_context *context)
1340 {
1341 struct front_face *front = pd->video_data.front;
1342
1343 pd_video_checkmode(pd);
1344
1345 set_std(pd, &context->tvnormid);
1346 vidioc_s_input(NULL, front, context->sig_index);
1347 pd_vidioc_s_tuner(pd, context->audio_idx);
1348 pd_vidioc_s_fmt(pd, &context->pix);
1349 set_frequency(pd, context->freq);
1350 return 0;
1351 }
1352
1353 static int pm_video_resume(struct poseidon *pd)
1354 {
1355 struct video_data *video = &pd->video_data;
1356
1357 /* resume the video */
1358 /* [1] restore the origin V4L2 parameters */
1359 restore_v4l2_context(pd, &video->context);
1360
1361 /* [2] initiate video copy variables */
1362 if (video->front->curr_frame)
1363 init_copy(video, 0);
1364
1365 /* [3] fire urbs */
1366 start_video_stream(pd);
1367
1368 /* resume the audio */
1369 pm_alsa_resume(pd);
1370 return 0;
1371 }
1372 #endif
1373
1374 void set_debug_mode(struct video_device *vfd, int debug_mode)
1375 {
1376 vfd->debug = 0;
1377 if (debug_mode & 0x1)
1378 vfd->debug = V4L2_DEBUG_IOCTL;
1379 if (debug_mode & 0x2)
1380 vfd->debug = V4L2_DEBUG_IOCTL | V4L2_DEBUG_IOCTL_ARG;
1381 }
1382
1383 static void init_video_context(struct running_context *context)
1384 {
1385 context->sig_index = 0;
1386 context->audio_idx = 1; /* stereo */
1387 context->tvnormid = V4L2_STD_PAL_D;
1388 context->pix = (struct v4l2_pix_format) {
1389 .width = 720,
1390 .height = 576,
1391 .pixelformat = V4L2_PIX_FMT_YUYV,
1392 .field = V4L2_FIELD_INTERLACED,
1393 .bytesperline = 720 * 2,
1394 .sizeimage = 720 * 576 * 2,
1395 .colorspace = V4L2_COLORSPACE_SMPTE170M,
1396 .priv = 0
1397 };
1398 }
1399
1400 static int pd_video_open(struct file *file)
1401 {
1402 struct video_device *vfd = video_devdata(file);
1403 struct poseidon *pd = video_get_drvdata(vfd);
1404 struct front_face *front = NULL;
1405 int ret = -ENOMEM;
1406
1407 mutex_lock(&pd->lock);
1408 usb_autopm_get_interface(pd->interface);
1409
1410 if (vfd->vfl_type == VFL_TYPE_GRABBER
1411 && !(pd->state & POSEIDON_STATE_ANALOG)) {
1412 front = kzalloc(sizeof(struct front_face), GFP_KERNEL);
1413 if (!front)
1414 goto out;
1415
1416 pd->cur_transfer_mode = usb_transfer_mode;/* bulk or iso */
1417 init_video_context(&pd->video_data.context);
1418
1419 ret = pd_video_checkmode(pd);
1420 if (ret < 0) {
1421 kfree(front);
1422 ret = -1;
1423 goto out;
1424 }
1425
1426 pd->state |= POSEIDON_STATE_ANALOG;
1427 front->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
1428 pd->video_data.users++;
1429 set_debug_mode(vfd, debug_mode);
1430
1431 videobuf_queue_vmalloc_init(&front->q, &pd_video_qops,
1432 NULL, &front->queue_lock,
1433 V4L2_BUF_TYPE_VIDEO_CAPTURE,
1434 V4L2_FIELD_INTERLACED,/* video is interlacd */
1435 sizeof(struct videobuf_buffer),/*it's enough*/
1436 front, NULL);
1437 } else if (vfd->vfl_type == VFL_TYPE_VBI
1438 && !(pd->state & POSEIDON_STATE_VBI)) {
1439 front = kzalloc(sizeof(struct front_face), GFP_KERNEL);
1440 if (!front)
1441 goto out;
1442
1443 pd->state |= POSEIDON_STATE_VBI;
1444 front->type = V4L2_BUF_TYPE_VBI_CAPTURE;
1445 pd->vbi_data.front = front;
1446 pd->vbi_data.users++;
1447
1448 videobuf_queue_vmalloc_init(&front->q, &pd_video_qops,
1449 NULL, &front->queue_lock,
1450 V4L2_BUF_TYPE_VBI_CAPTURE,
1451 V4L2_FIELD_NONE, /* vbi is NONE mode */
1452 sizeof(struct videobuf_buffer),
1453 front, NULL);
1454 } else {
1455 /* maybe add FM support here */
1456 log("other ");
1457 ret = -EINVAL;
1458 goto out;
1459 }
1460
1461 front->pd = pd;
1462 front->curr_frame = NULL;
1463 INIT_LIST_HEAD(&front->active);
1464 spin_lock_init(&front->queue_lock);
1465
1466 file->private_data = front;
1467 kref_get(&pd->kref);
1468
1469 mutex_unlock(&pd->lock);
1470 return 0;
1471 out:
1472 usb_autopm_put_interface(pd->interface);
1473 mutex_unlock(&pd->lock);
1474 return ret;
1475 }
1476
1477 static int pd_video_release(struct file *file)
1478 {
1479 struct front_face *front = file->private_data;
1480 struct poseidon *pd = front->pd;
1481 s32 cmd_status = 0;
1482
1483 logs(front);
1484 mutex_lock(&pd->lock);
1485
1486 if (front->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) {
1487 pd->state &= ~POSEIDON_STATE_ANALOG;
1488
1489 /* stop the device, and free the URBs */
1490 usb_transfer_stop(&pd->video_data);
1491 free_all_urb(&pd->video_data);
1492
1493 /* stop the firmware */
1494 send_set_req(pd, PLAY_SERVICE, TLG_TUNE_PLAY_SVC_STOP,
1495 &cmd_status);
1496
1497 pd->file_for_stream = NULL;
1498 pd->video_data.users--;
1499 } else if (front->type == V4L2_BUF_TYPE_VBI_CAPTURE) {
1500 pd->state &= ~POSEIDON_STATE_VBI;
1501 pd->vbi_data.front = NULL;
1502 pd->vbi_data.users--;
1503 }
1504 videobuf_stop(&front->q);
1505 videobuf_mmap_free(&front->q);
1506
1507 usb_autopm_put_interface(pd->interface);
1508 mutex_unlock(&pd->lock);
1509
1510 kfree(front);
1511 file->private_data = NULL;
1512 kref_put(&pd->kref, poseidon_delete);
1513 return 0;
1514 }
1515
1516 static int pd_video_mmap(struct file *file, struct vm_area_struct *vma)
1517 {
1518 struct front_face *front = file->private_data;
1519 return videobuf_mmap_mapper(&front->q, vma);
1520 }
1521
1522 static unsigned int pd_video_poll(struct file *file, poll_table *table)
1523 {
1524 struct front_face *front = file->private_data;
1525 return videobuf_poll_stream(file, &front->q, table);
1526 }
1527
1528 static ssize_t pd_video_read(struct file *file, char __user *buffer,
1529 size_t count, loff_t *ppos)
1530 {
1531 struct front_face *front = file->private_data;
1532 return videobuf_read_stream(&front->q, buffer, count, ppos,
1533 0, file->f_flags & O_NONBLOCK);
1534 }
1535
1536 /* This struct works for both VIDEO and VBI */
1537 static const struct v4l2_file_operations pd_video_fops = {
1538 .owner = THIS_MODULE,
1539 .open = pd_video_open,
1540 .release = pd_video_release,
1541 .read = pd_video_read,
1542 .poll = pd_video_poll,
1543 .mmap = pd_video_mmap,
1544 .ioctl = video_ioctl2, /* maybe changed in future */
1545 };
1546
1547 static const struct v4l2_ioctl_ops pd_video_ioctl_ops = {
1548 .vidioc_querycap = vidioc_querycap,
1549
1550 /* Video format */
1551 .vidioc_g_fmt_vid_cap = vidioc_g_fmt,
1552 .vidioc_enum_fmt_vid_cap = vidioc_enum_fmt,
1553 .vidioc_s_fmt_vid_cap = vidioc_s_fmt,
1554 .vidioc_g_fmt_vbi_cap = vidioc_g_fmt_vbi, /* VBI */
1555 .vidioc_try_fmt_vid_cap = vidioc_try_fmt,
1556
1557 /* Input */
1558 .vidioc_g_input = vidioc_g_input,
1559 .vidioc_s_input = vidioc_s_input,
1560 .vidioc_enum_input = vidioc_enum_input,
1561
1562 /* Audio ioctls */
1563 .vidioc_enumaudio = vidioc_enumaudio,
1564 .vidioc_g_audio = vidioc_g_audio,
1565 .vidioc_s_audio = vidioc_s_audio,
1566
1567 /* Tuner ioctls */
1568 .vidioc_g_tuner = vidioc_g_tuner,
1569 .vidioc_s_tuner = vidioc_s_tuner,
1570 .vidioc_s_std = vidioc_s_std,
1571 .vidioc_g_frequency = vidioc_g_frequency,
1572 .vidioc_s_frequency = vidioc_s_frequency,
1573
1574 /* Buffer handlers */
1575 .vidioc_reqbufs = vidioc_reqbufs,
1576 .vidioc_querybuf = vidioc_querybuf,
1577 .vidioc_qbuf = vidioc_qbuf,
1578 .vidioc_dqbuf = vidioc_dqbuf,
1579
1580 /* Stream on/off */
1581 .vidioc_streamon = vidioc_streamon,
1582 .vidioc_streamoff = vidioc_streamoff,
1583
1584 /* Control handling */
1585 .vidioc_queryctrl = vidioc_queryctrl,
1586 .vidioc_g_ctrl = vidioc_g_ctrl,
1587 .vidioc_s_ctrl = vidioc_s_ctrl,
1588 };
1589
1590 static struct video_device pd_video_template = {
1591 .name = "Telegent-Video",
1592 .fops = &pd_video_fops,
1593 .minor = -1,
1594 .release = video_device_release,
1595 .tvnorms = V4L2_STD_ALL,
1596 .ioctl_ops = &pd_video_ioctl_ops,
1597 };
1598
1599 struct video_device *vdev_init(struct poseidon *pd, struct video_device *tmp)
1600 {
1601 struct video_device *vfd;
1602
1603 vfd = video_device_alloc();
1604 if (vfd == NULL)
1605 return NULL;
1606 *vfd = *tmp;
1607 vfd->minor = -1;
1608 vfd->v4l2_dev = &pd->v4l2_dev;
1609 /*vfd->parent = &(pd->udev->dev); */
1610 vfd->release = video_device_release;
1611 video_set_drvdata(vfd, pd);
1612 return vfd;
1613 }
1614
1615 void destroy_video_device(struct video_device **v_dev)
1616 {
1617 struct video_device *dev = *v_dev;
1618
1619 if (dev == NULL)
1620 return;
1621
1622 if (video_is_registered(dev))
1623 video_unregister_device(dev);
1624 else
1625 video_device_release(dev);
1626 *v_dev = NULL;
1627 }
1628
1629 void pd_video_exit(struct poseidon *pd)
1630 {
1631 struct video_data *video = &pd->video_data;
1632 struct vbi_data *vbi = &pd->vbi_data;
1633
1634 destroy_video_device(&video->v_dev);
1635 destroy_video_device(&vbi->v_dev);
1636 log();
1637 }
1638
1639 int pd_video_init(struct poseidon *pd)
1640 {
1641 struct video_data *video = &pd->video_data;
1642 struct vbi_data *vbi = &pd->vbi_data;
1643 int ret = -ENOMEM;
1644
1645 video->v_dev = vdev_init(pd, &pd_video_template);
1646 if (video->v_dev == NULL)
1647 goto out;
1648
1649 ret = video_register_device(video->v_dev, VFL_TYPE_GRABBER, -1);
1650 if (ret != 0)
1651 goto out;
1652
1653 /* VBI uses the same template as video */
1654 vbi->v_dev = vdev_init(pd, &pd_video_template);
1655 if (vbi->v_dev == NULL) {
1656 ret = -ENOMEM;
1657 goto out;
1658 }
1659 ret = video_register_device(vbi->v_dev, VFL_TYPE_VBI, -1);
1660 if (ret != 0)
1661 goto out;
1662 log("register VIDEO/VBI devices");
1663 return 0;
1664 out:
1665 log("VIDEO/VBI devices register failed, : %d", ret);
1666 pd_video_exit(pd);
1667 return ret;
1668 }
1669
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