9595309caed441d852774690864ebb0024557025
[sfrench/cifs-2.6.git] / drivers / media / usb / 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 #include <media/v4l2-ctrls.h>
12
13 #include "pd-common.h"
14 #include "vendorcmds.h"
15
16 #ifdef CONFIG_PM
17 static int pm_video_suspend(struct poseidon *pd);
18 static int pm_video_resume(struct poseidon *pd);
19 #endif
20 static void iso_bubble_handler(struct work_struct *w);
21
22 static int usb_transfer_mode;
23 module_param(usb_transfer_mode, int, 0644);
24 MODULE_PARM_DESC(usb_transfer_mode, "0 = Bulk, 1 = Isochronous");
25
26 static const struct poseidon_format poseidon_formats[] = {
27         { "YUV 422", V4L2_PIX_FMT_YUYV, 16, 0},
28         { "RGB565", V4L2_PIX_FMT_RGB565, 16, 0},
29 };
30
31 static const struct poseidon_tvnorm poseidon_tvnorms[] = {
32         { V4L2_STD_PAL_D, "PAL-D",  TLG_TUNE_VSTD_PAL_D },
33         { V4L2_STD_PAL_B, "PAL-B",  TLG_TUNE_VSTD_PAL_B },
34         { V4L2_STD_PAL_G, "PAL-G",  TLG_TUNE_VSTD_PAL_G },
35         { V4L2_STD_PAL_H, "PAL-H",  TLG_TUNE_VSTD_PAL_H },
36         { V4L2_STD_PAL_I, "PAL-I",  TLG_TUNE_VSTD_PAL_I },
37         { V4L2_STD_PAL_M, "PAL-M",  TLG_TUNE_VSTD_PAL_M },
38         { V4L2_STD_PAL_N, "PAL-N",  TLG_TUNE_VSTD_PAL_N_COMBO },
39         { V4L2_STD_PAL_Nc, "PAL-Nc", TLG_TUNE_VSTD_PAL_N_COMBO },
40         { V4L2_STD_NTSC_M, "NTSC-M", TLG_TUNE_VSTD_NTSC_M },
41         { V4L2_STD_NTSC_M_JP, "NTSC-JP", TLG_TUNE_VSTD_NTSC_M_J },
42         { V4L2_STD_SECAM_B, "SECAM-B", TLG_TUNE_VSTD_SECAM_B },
43         { V4L2_STD_SECAM_D, "SECAM-D", TLG_TUNE_VSTD_SECAM_D },
44         { V4L2_STD_SECAM_G, "SECAM-G", TLG_TUNE_VSTD_SECAM_G },
45         { V4L2_STD_SECAM_H, "SECAM-H", TLG_TUNE_VSTD_SECAM_H },
46         { V4L2_STD_SECAM_K, "SECAM-K", TLG_TUNE_VSTD_SECAM_K },
47         { V4L2_STD_SECAM_K1, "SECAM-K1", TLG_TUNE_VSTD_SECAM_K1 },
48         { V4L2_STD_SECAM_L, "SECAM-L", TLG_TUNE_VSTD_SECAM_L },
49         { V4L2_STD_SECAM_LC, "SECAM-LC", TLG_TUNE_VSTD_SECAM_L1 },
50 };
51 static const unsigned int POSEIDON_TVNORMS = ARRAY_SIZE(poseidon_tvnorms);
52
53 struct pd_audio_mode {
54         u32 tlg_audio_mode;
55         u32 v4l2_audio_sub;
56         u32 v4l2_audio_mode;
57 };
58
59 static const struct pd_audio_mode pd_audio_modes[] = {
60         { TLG_TUNE_TVAUDIO_MODE_MONO, V4L2_TUNER_SUB_MONO,
61                 V4L2_TUNER_MODE_MONO },
62         { TLG_TUNE_TVAUDIO_MODE_STEREO, V4L2_TUNER_SUB_STEREO,
63                 V4L2_TUNER_MODE_STEREO },
64         { TLG_TUNE_TVAUDIO_MODE_LANG_A, V4L2_TUNER_SUB_LANG1,
65                 V4L2_TUNER_MODE_LANG1 },
66         { TLG_TUNE_TVAUDIO_MODE_LANG_B, V4L2_TUNER_SUB_LANG2,
67                 V4L2_TUNER_MODE_LANG2 },
68         { TLG_TUNE_TVAUDIO_MODE_LANG_C, V4L2_TUNER_SUB_LANG1,
69                 V4L2_TUNER_MODE_LANG1_LANG2 }
70 };
71 static const unsigned int POSEIDON_AUDIOMODS = ARRAY_SIZE(pd_audio_modes);
72
73 struct pd_input {
74         char *name;
75         uint32_t tlg_src;
76 };
77
78 static const struct pd_input pd_inputs[] = {
79         { "TV Antenna", TLG_SIG_SRC_ANTENNA },
80         { "TV Cable", TLG_SIG_SRC_CABLE },
81         { "TV SVideo", TLG_SIG_SRC_SVIDEO },
82         { "TV Composite", TLG_SIG_SRC_COMPOSITE }
83 };
84 static const unsigned int POSEIDON_INPUTS = ARRAY_SIZE(pd_inputs);
85
86 struct video_std_to_audio_std {
87         v4l2_std_id     video_std;
88         int             audio_std;
89 };
90
91 static const struct video_std_to_audio_std video_to_audio_map[] = {
92         /* country : { 27, 32, 33, 34, 36, 44, 45, 46, 47, 48, 64,
93                         65, 86, 351, 352, 353, 354, 358, 372, 852, 972 } */
94         { (V4L2_STD_PAL_I | V4L2_STD_PAL_B | V4L2_STD_PAL_D |
95                 V4L2_STD_SECAM_L | V4L2_STD_SECAM_D), TLG_TUNE_ASTD_NICAM },
96
97         /* country : { 1, 52, 54, 55, 886 } */
98         {V4L2_STD_NTSC_M | V4L2_STD_PAL_N | V4L2_STD_PAL_M, TLG_TUNE_ASTD_BTSC},
99
100         /* country : { 81 } */
101         { V4L2_STD_NTSC_M_JP, TLG_TUNE_ASTD_EIAJ },
102
103         /* other country : TLG_TUNE_ASTD_A2 */
104 };
105 static const unsigned int map_size = ARRAY_SIZE(video_to_audio_map);
106
107 static int get_audio_std(v4l2_std_id v4l2_std)
108 {
109         int i = 0;
110
111         for (; i < map_size; i++) {
112                 if (v4l2_std & video_to_audio_map[i].video_std)
113                         return video_to_audio_map[i].audio_std;
114         }
115         return TLG_TUNE_ASTD_A2;
116 }
117
118 static int vidioc_querycap(struct file *file, void *fh,
119                         struct v4l2_capability *cap)
120 {
121         struct video_device *vdev = video_devdata(file);
122         struct poseidon *p = video_get_drvdata(vdev);
123
124         strcpy(cap->driver, "tele-video");
125         strcpy(cap->card, "Telegent Poseidon");
126         usb_make_path(p->udev, cap->bus_info, sizeof(cap->bus_info));
127         cap->device_caps = V4L2_CAP_TUNER | V4L2_CAP_AUDIO |
128                         V4L2_CAP_STREAMING | V4L2_CAP_READWRITE;
129         if (vdev->vfl_type == VFL_TYPE_VBI)
130                 cap->device_caps |= V4L2_CAP_VBI_CAPTURE;
131         else
132                 cap->device_caps |= V4L2_CAP_VIDEO_CAPTURE;
133         cap->capabilities = cap->device_caps | V4L2_CAP_DEVICE_CAPS |
134                 V4L2_CAP_RADIO | V4L2_CAP_VBI_CAPTURE | V4L2_CAP_VIDEO_CAPTURE;
135         return 0;
136 }
137
138 /*====================================================================*/
139 static void init_copy(struct video_data *video, bool index)
140 {
141         struct front_face *front = video->front;
142
143         video->field_count      = index;
144         video->lines_copied     = 0;
145         video->prev_left        = 0 ;
146         video->dst              = (char *)videobuf_to_vmalloc(front->curr_frame)
147                                         + index * video->lines_size;
148         video->vbi->copied      = 0; /* set it here */
149 }
150
151 static bool get_frame(struct front_face *front, int *need_init)
152 {
153         struct videobuf_buffer *vb = front->curr_frame;
154
155         if (vb)
156                 return true;
157
158         spin_lock(&front->queue_lock);
159         if (!list_empty(&front->active)) {
160                 vb = list_entry(front->active.next,
161                                struct videobuf_buffer, queue);
162                 if (need_init)
163                         *need_init = 1;
164                 front->curr_frame = vb;
165                 list_del_init(&vb->queue);
166         }
167         spin_unlock(&front->queue_lock);
168
169         return !!vb;
170 }
171
172 /* check if the video's buffer is ready */
173 static bool get_video_frame(struct front_face *front, struct video_data *video)
174 {
175         int need_init = 0;
176         bool ret = true;
177
178         ret = get_frame(front, &need_init);
179         if (ret && need_init)
180                 init_copy(video, 0);
181         return ret;
182 }
183
184 static void submit_frame(struct front_face *front)
185 {
186         struct videobuf_buffer *vb = front->curr_frame;
187
188         if (vb == NULL)
189                 return;
190
191         front->curr_frame       = NULL;
192         vb->state               = VIDEOBUF_DONE;
193         vb->field_count++;
194         v4l2_get_timestamp(&vb->ts);
195
196         wake_up(&vb->done);
197 }
198
199 /*
200  * A frame is composed of two fields. If we receive all the two fields,
201  * call the  submit_frame() to submit the whole frame to applications.
202  */
203 static void end_field(struct video_data *video)
204 {
205         if (1 == video->field_count)
206                 submit_frame(video->front);
207         else
208                 init_copy(video, 1);
209 }
210
211 static void copy_video_data(struct video_data *video, char *src,
212                                 unsigned int count)
213 {
214 #define copy_data(len)  \
215         do { \
216                 if (++video->lines_copied > video->lines_per_field) \
217                         goto overflow; \
218                 memcpy(video->dst, src, len);\
219                 video->dst += len + video->lines_size; \
220                 src += len; \
221                 count -= len; \
222          } while (0)
223
224         while (count && count >= video->lines_size) {
225                 if (video->prev_left) {
226                         copy_data(video->prev_left);
227                         video->prev_left = 0;
228                         continue;
229                 }
230                 copy_data(video->lines_size);
231         }
232         if (count && count < video->lines_size) {
233                 memcpy(video->dst, src, count);
234
235                 video->prev_left = video->lines_size - count;
236                 video->dst += count;
237         }
238         return;
239
240 overflow:
241         end_field(video);
242 }
243
244 static void check_trailer(struct video_data *video, char *src, int count)
245 {
246         struct vbi_data *vbi = video->vbi;
247         int offset; /* trailer's offset */
248         char *buf;
249
250         offset = (video->context.pix.sizeimage / 2 + vbi->vbi_size / 2)
251                 - (vbi->copied + video->lines_size * video->lines_copied);
252         if (video->prev_left)
253                 offset -= (video->lines_size - video->prev_left);
254
255         if (offset > count || offset <= 0)
256                 goto short_package;
257
258         buf = src + offset;
259
260         /* trailer : (VFHS) + U32 + U32 + field_num */
261         if (!strncmp(buf, "VFHS", 4)) {
262                 int field_num = *((u32 *)(buf + 12));
263
264                 if ((field_num & 1) ^ video->field_count) {
265                         init_copy(video, video->field_count);
266                         return;
267                 }
268                 copy_video_data(video, src, offset);
269         }
270 short_package:
271         end_field(video);
272 }
273
274 /* ==========  Check this more carefully! =========== */
275 static inline void copy_vbi_data(struct vbi_data *vbi,
276                                 char *src, unsigned int count)
277 {
278         struct front_face *front = vbi->front;
279
280         if (front && get_frame(front, NULL)) {
281                 char *buf = videobuf_to_vmalloc(front->curr_frame);
282
283                 if (vbi->video->field_count)
284                         buf += (vbi->vbi_size / 2);
285                 memcpy(buf + vbi->copied, src, count);
286         }
287         vbi->copied += count;
288 }
289
290 /*
291  * Copy the normal data (VBI or VIDEO) without the trailer.
292  * VBI is not interlaced, while VIDEO is interlaced.
293  */
294 static inline void copy_vbi_video_data(struct video_data *video,
295                                 char *src, unsigned int count)
296 {
297         struct vbi_data *vbi = video->vbi;
298         unsigned int vbi_delta = (vbi->vbi_size / 2) - vbi->copied;
299
300         if (vbi_delta >= count) {
301                 copy_vbi_data(vbi, src, count);
302         } else {
303                 if (vbi_delta) {
304                         copy_vbi_data(vbi, src, vbi_delta);
305
306                         /* we receive the two fields of the VBI*/
307                         if (vbi->front && video->field_count)
308                                 submit_frame(vbi->front);
309                 }
310                 copy_video_data(video, src + vbi_delta, count - vbi_delta);
311         }
312 }
313
314 static void urb_complete_bulk(struct urb *urb)
315 {
316         struct front_face *front = urb->context;
317         struct video_data *video = &front->pd->video_data;
318         char *src = (char *)urb->transfer_buffer;
319         int count = urb->actual_length;
320         int ret = 0;
321
322         if (!video->is_streaming || urb->status) {
323                 if (urb->status == -EPROTO)
324                         goto resend_it;
325                 return;
326         }
327         if (!get_video_frame(front, video))
328                 goto resend_it;
329
330         if (count == urb->transfer_buffer_length)
331                 copy_vbi_video_data(video, src, count);
332         else
333                 check_trailer(video, src, count);
334
335 resend_it:
336         ret = usb_submit_urb(urb, GFP_ATOMIC);
337         if (ret)
338                 log(" submit failed: error %d", ret);
339 }
340
341 /************************* for ISO *********************/
342 #define GET_SUCCESS             (0)
343 #define GET_TRAILER             (1)
344 #define GET_TOO_MUCH_BUBBLE     (2)
345 #define GET_NONE                (3)
346 static int get_chunk(int start, struct urb *urb,
347                         int *head, int *tail, int *bubble_err)
348 {
349         struct usb_iso_packet_descriptor *pkt = NULL;
350         int ret = GET_SUCCESS;
351
352         for (*head = *tail = -1; start < urb->number_of_packets; start++) {
353                 pkt = &urb->iso_frame_desc[start];
354
355                 /* handle the bubble of the Hub */
356                 if (-EOVERFLOW == pkt->status) {
357                         if (++*bubble_err > urb->number_of_packets / 3)
358                                 return GET_TOO_MUCH_BUBBLE;
359                         continue;
360                 }
361
362                 /* This is the gap */
363                 if (pkt->status || pkt->actual_length <= 0
364                                 || pkt->actual_length > ISO_PKT_SIZE) {
365                         if (*head != -1)
366                                 break;
367                         continue;
368                 }
369
370                 /* a good isochronous packet */
371                 if (pkt->actual_length == ISO_PKT_SIZE) {
372                         if (*head == -1)
373                                 *head = start;
374                         *tail = start;
375                         continue;
376                 }
377
378                 /* trailer is here */
379                 if (pkt->actual_length < ISO_PKT_SIZE) {
380                         if (*head == -1) {
381                                 *head = start;
382                                 *tail = start;
383                                 return GET_TRAILER;
384                         }
385                         break;
386                 }
387         }
388
389         if (*head == -1 && *tail == -1)
390                 ret = GET_NONE;
391         return ret;
392 }
393
394 /*
395  * |__|------|___|-----|_______|
396  *       ^          ^
397  *       |          |
398  *      gap        gap
399  */
400 static void urb_complete_iso(struct urb *urb)
401 {
402         struct front_face *front = urb->context;
403         struct video_data *video = &front->pd->video_data;
404         int bubble_err = 0, head = 0, tail = 0;
405         char *src = (char *)urb->transfer_buffer;
406         int ret = 0;
407
408         if (!video->is_streaming)
409                 return;
410
411         do {
412                 if (!get_video_frame(front, video))
413                         goto out;
414
415                 switch (get_chunk(head, urb, &head, &tail, &bubble_err)) {
416                 case GET_SUCCESS:
417                         copy_vbi_video_data(video, src + (head * ISO_PKT_SIZE),
418                                         (tail - head + 1) * ISO_PKT_SIZE);
419                         break;
420                 case GET_TRAILER:
421                         check_trailer(video, src + (head * ISO_PKT_SIZE),
422                                         ISO_PKT_SIZE);
423                         break;
424                 case GET_NONE:
425                         goto out;
426                 case GET_TOO_MUCH_BUBBLE:
427                         log("\t We got too much bubble");
428                         schedule_work(&video->bubble_work);
429                         return;
430                 }
431         } while (head = tail + 1, head < urb->number_of_packets);
432
433 out:
434         ret = usb_submit_urb(urb, GFP_ATOMIC);
435         if (ret)
436                 log("usb_submit_urb err : %d", ret);
437 }
438 /*============================= [  end  ] =====================*/
439
440 static int prepare_iso_urb(struct video_data *video)
441 {
442         struct usb_device *udev = video->pd->udev;
443         int i;
444
445         if (video->urb_array[0])
446                 return 0;
447
448         for (i = 0; i < SBUF_NUM; i++) {
449                 struct urb *urb;
450                 void *mem;
451                 int j;
452
453                 urb = usb_alloc_urb(PK_PER_URB, GFP_KERNEL);
454                 if (urb == NULL)
455                         goto out;
456
457                 video->urb_array[i] = urb;
458                 mem = usb_alloc_coherent(udev,
459                                          ISO_PKT_SIZE * PK_PER_URB,
460                                          GFP_KERNEL,
461                                          &urb->transfer_dma);
462
463                 urb->complete   = urb_complete_iso;     /* handler */
464                 urb->dev        = udev;
465                 urb->context    = video->front;
466                 urb->pipe       = usb_rcvisocpipe(udev,
467                                                 video->endpoint_addr);
468                 urb->interval   = 1;
469                 urb->transfer_flags = URB_ISO_ASAP | URB_NO_TRANSFER_DMA_MAP;
470                 urb->number_of_packets  = PK_PER_URB;
471                 urb->transfer_buffer    = mem;
472                 urb->transfer_buffer_length = PK_PER_URB * ISO_PKT_SIZE;
473
474                 for (j = 0; j < PK_PER_URB; j++) {
475                         urb->iso_frame_desc[j].offset = ISO_PKT_SIZE * j;
476                         urb->iso_frame_desc[j].length = ISO_PKT_SIZE;
477                 }
478         }
479         return 0;
480 out:
481         for (; i > 0; i--)
482                 ;
483         return -ENOMEM;
484 }
485
486 /* return the succeeded number of the allocation */
487 int alloc_bulk_urbs_generic(struct urb **urb_array, int num,
488                         struct usb_device *udev, u8 ep_addr,
489                         int buf_size, gfp_t gfp_flags,
490                         usb_complete_t complete_fn, void *context)
491 {
492         int i = 0;
493
494         for (; i < num; i++) {
495                 void *mem;
496                 struct urb *urb = usb_alloc_urb(0, gfp_flags);
497                 if (urb == NULL)
498                         return i;
499
500                 mem = usb_alloc_coherent(udev, buf_size, gfp_flags,
501                                          &urb->transfer_dma);
502                 if (mem == NULL) {
503                         usb_free_urb(urb);
504                         return i;
505                 }
506
507                 usb_fill_bulk_urb(urb, udev, usb_rcvbulkpipe(udev, ep_addr),
508                                 mem, buf_size, complete_fn, context);
509                 urb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
510                 urb_array[i] = urb;
511         }
512         return i;
513 }
514
515 void free_all_urb_generic(struct urb **urb_array, int num)
516 {
517         int i;
518         struct urb *urb;
519
520         for (i = 0; i < num; i++) {
521                 urb = urb_array[i];
522                 if (urb) {
523                         usb_free_coherent(urb->dev,
524                                         urb->transfer_buffer_length,
525                                         urb->transfer_buffer,
526                                         urb->transfer_dma);
527                         usb_free_urb(urb);
528                         urb_array[i] = NULL;
529                 }
530         }
531 }
532
533 static int prepare_bulk_urb(struct video_data *video)
534 {
535         if (video->urb_array[0])
536                 return 0;
537
538         alloc_bulk_urbs_generic(video->urb_array, SBUF_NUM,
539                         video->pd->udev, video->endpoint_addr,
540                         0x2000, GFP_KERNEL,
541                         urb_complete_bulk, video->front);
542         return 0;
543 }
544
545 /* free the URBs */
546 static void free_all_urb(struct video_data *video)
547 {
548         free_all_urb_generic(video->urb_array, SBUF_NUM);
549 }
550
551 static void pd_buf_release(struct videobuf_queue *q, struct videobuf_buffer *vb)
552 {
553         videobuf_vmalloc_free(vb);
554         vb->state = VIDEOBUF_NEEDS_INIT;
555 }
556
557 static void pd_buf_queue(struct videobuf_queue *q, struct videobuf_buffer *vb)
558 {
559         struct front_face *front = q->priv_data;
560         vb->state = VIDEOBUF_QUEUED;
561         list_add_tail(&vb->queue, &front->active);
562 }
563
564 static int pd_buf_prepare(struct videobuf_queue *q, struct videobuf_buffer *vb,
565                            enum v4l2_field field)
566 {
567         struct front_face *front = q->priv_data;
568         int rc;
569
570         switch (front->type) {
571         case V4L2_BUF_TYPE_VIDEO_CAPTURE:
572                 if (VIDEOBUF_NEEDS_INIT == vb->state) {
573                         struct v4l2_pix_format *pix;
574
575                         pix = &front->pd->video_data.context.pix;
576                         vb->size        = pix->sizeimage; /* real frame size */
577                         vb->width       = pix->width;
578                         vb->height      = pix->height;
579                         rc = videobuf_iolock(q, vb, NULL);
580                         if (rc < 0)
581                                 return rc;
582                 }
583                 break;
584         case V4L2_BUF_TYPE_VBI_CAPTURE:
585                 if (VIDEOBUF_NEEDS_INIT == vb->state) {
586                         vb->size        = front->pd->vbi_data.vbi_size;
587                         rc = videobuf_iolock(q, vb, NULL);
588                         if (rc < 0)
589                                 return rc;
590                 }
591                 break;
592         default:
593                 return -EINVAL;
594         }
595         vb->field = field;
596         vb->state = VIDEOBUF_PREPARED;
597         return 0;
598 }
599
600 static int fire_all_urb(struct video_data *video)
601 {
602         int i, ret;
603
604         video->is_streaming = 1;
605
606         for (i = 0; i < SBUF_NUM; i++) {
607                 ret = usb_submit_urb(video->urb_array[i], GFP_KERNEL);
608                 if (ret)
609                         log("(%d) failed: error %d", i, ret);
610         }
611         return ret;
612 }
613
614 static int start_video_stream(struct poseidon *pd)
615 {
616         struct video_data *video = &pd->video_data;
617         s32 cmd_status;
618
619         send_set_req(pd, TAKE_REQUEST, 0, &cmd_status);
620         send_set_req(pd, PLAY_SERVICE, TLG_TUNE_PLAY_SVC_START, &cmd_status);
621
622         if (pd->cur_transfer_mode) {
623                 prepare_iso_urb(video);
624                 INIT_WORK(&video->bubble_work, iso_bubble_handler);
625         } else {
626                 /* The bulk mode does not need a bubble handler */
627                 prepare_bulk_urb(video);
628         }
629         fire_all_urb(video);
630         return 0;
631 }
632
633 static int pd_buf_setup(struct videobuf_queue *q, unsigned int *count,
634                        unsigned int *size)
635 {
636         struct front_face *front = q->priv_data;
637         struct poseidon *pd     = front->pd;
638
639         switch (front->type) {
640         default:
641                 return -EINVAL;
642         case V4L2_BUF_TYPE_VIDEO_CAPTURE: {
643                 struct video_data *video = &pd->video_data;
644                 struct v4l2_pix_format *pix = &video->context.pix;
645
646                 *size = PAGE_ALIGN(pix->sizeimage);/* page aligned frame size */
647                 if (*count < 4)
648                         *count = 4;
649                 if (1) {
650                         /* same in different altersetting */
651                         video->endpoint_addr    = 0x82;
652                         video->vbi              = &pd->vbi_data;
653                         video->vbi->video       = video;
654                         video->pd               = pd;
655                         video->lines_per_field  = pix->height / 2;
656                         video->lines_size       = pix->width * 2;
657                         video->front            = front;
658                 }
659                 return start_video_stream(pd);
660         }
661
662         case V4L2_BUF_TYPE_VBI_CAPTURE: {
663                 struct vbi_data *vbi = &pd->vbi_data;
664
665                 *size = PAGE_ALIGN(vbi->vbi_size);
666                 log("size : %d", *size);
667                 if (*count == 0)
668                         *count = 4;
669         }
670                 break;
671         }
672         return 0;
673 }
674
675 static struct videobuf_queue_ops pd_video_qops = {
676         .buf_setup      = pd_buf_setup,
677         .buf_prepare    = pd_buf_prepare,
678         .buf_queue      = pd_buf_queue,
679         .buf_release    = pd_buf_release,
680 };
681
682 static int vidioc_enum_fmt(struct file *file, void *fh,
683                                 struct v4l2_fmtdesc *f)
684 {
685         if (ARRAY_SIZE(poseidon_formats) <= f->index)
686                 return -EINVAL;
687         f->type         = V4L2_BUF_TYPE_VIDEO_CAPTURE;
688         f->flags        = 0;
689         f->pixelformat  = poseidon_formats[f->index].fourcc;
690         strcpy(f->description, poseidon_formats[f->index].name);
691         return 0;
692 }
693
694 static int vidioc_g_fmt(struct file *file, void *fh, struct v4l2_format *f)
695 {
696         struct front_face *front = fh;
697         struct poseidon *pd = front->pd;
698
699         f->fmt.pix = pd->video_data.context.pix;
700         return 0;
701 }
702
703 /*
704  * VLC calls VIDIOC_S_STD before VIDIOC_S_FMT, while
705  * Mplayer calls them in the reverse order.
706  */
707 static int pd_vidioc_s_fmt(struct poseidon *pd, struct v4l2_pix_format *pix)
708 {
709         struct video_data *video        = &pd->video_data;
710         struct running_context *context = &video->context;
711         struct v4l2_pix_format *pix_def = &context->pix;
712         s32 ret = 0, cmd_status = 0, vid_resol;
713
714         /* set the pixel format to firmware */
715         if (pix->pixelformat == V4L2_PIX_FMT_RGB565) {
716                 vid_resol = TLG_TUNER_VID_FORMAT_RGB_565;
717         } else {
718                 pix->pixelformat = V4L2_PIX_FMT_YUYV;
719                 vid_resol = TLG_TUNER_VID_FORMAT_YUV;
720         }
721         ret = send_set_req(pd, VIDEO_STREAM_FMT_SEL,
722                                 vid_resol, &cmd_status);
723
724         /* set the resolution to firmware */
725         vid_resol = TLG_TUNE_VID_RES_720;
726         switch (pix->width) {
727         case 704:
728                 vid_resol = TLG_TUNE_VID_RES_704;
729                 break;
730         default:
731                 pix->width = 720;
732         case 720:
733                 break;
734         }
735         ret |= send_set_req(pd, VIDEO_ROSOLU_SEL,
736                                 vid_resol, &cmd_status);
737         if (ret || cmd_status)
738                 return -EBUSY;
739
740         pix_def->pixelformat = pix->pixelformat; /* save it */
741         pix->height = (context->tvnormid & V4L2_STD_525_60) ?  480 : 576;
742
743         /* Compare with the default setting */
744         if ((pix_def->width != pix->width)
745                 || (pix_def->height != pix->height)) {
746                 pix_def->width          = pix->width;
747                 pix_def->height         = pix->height;
748                 pix_def->bytesperline   = pix->width * 2;
749                 pix_def->sizeimage      = pix->width * pix->height * 2;
750         }
751         *pix = *pix_def;
752
753         return 0;
754 }
755
756 static int vidioc_s_fmt(struct file *file, void *fh, struct v4l2_format *f)
757 {
758         struct front_face *front        = fh;
759         struct poseidon *pd             = front->pd;
760
761         /* stop VBI here */
762         if (V4L2_BUF_TYPE_VIDEO_CAPTURE != f->type)
763                 return -EINVAL;
764
765         mutex_lock(&pd->lock);
766         if (pd->file_for_stream == NULL)
767                 pd->file_for_stream = file;
768         else if (file != pd->file_for_stream) {
769                 mutex_unlock(&pd->lock);
770                 return -EINVAL;
771         }
772
773         pd_vidioc_s_fmt(pd, &f->fmt.pix);
774         mutex_unlock(&pd->lock);
775         return 0;
776 }
777
778 static int vidioc_g_fmt_vbi(struct file *file, void *fh,
779                                struct v4l2_format *v4l2_f)
780 {
781         struct front_face *front        = fh;
782         struct poseidon *pd             = front->pd;
783         struct v4l2_vbi_format *vbi_fmt = &v4l2_f->fmt.vbi;
784
785         vbi_fmt->samples_per_line       = 720 * 2;
786         vbi_fmt->sampling_rate          = 6750000 * 4;
787         vbi_fmt->sample_format          = V4L2_PIX_FMT_GREY;
788         vbi_fmt->offset                 = 64 * 4;  /*FIXME: why offset */
789         if (pd->video_data.context.tvnormid & V4L2_STD_525_60) {
790                 vbi_fmt->start[0] = 10;
791                 vbi_fmt->start[1] = 264;
792                 vbi_fmt->count[0] = V4L_NTSC_VBI_LINES;
793                 vbi_fmt->count[1] = V4L_NTSC_VBI_LINES;
794         } else {
795                 vbi_fmt->start[0] = 6;
796                 vbi_fmt->start[1] = 314;
797                 vbi_fmt->count[0] = V4L_PAL_VBI_LINES;
798                 vbi_fmt->count[1] = V4L_PAL_VBI_LINES;
799         }
800         vbi_fmt->flags = V4L2_VBI_UNSYNC;
801         return 0;
802 }
803
804 static int set_std(struct poseidon *pd, v4l2_std_id *norm)
805 {
806         struct video_data *video = &pd->video_data;
807         struct vbi_data *vbi    = &pd->vbi_data;
808         struct running_context *context;
809         struct v4l2_pix_format *pix;
810         s32 i, ret = 0, cmd_status, param;
811         int height;
812
813         for (i = 0; i < POSEIDON_TVNORMS; i++) {
814                 if (*norm & poseidon_tvnorms[i].v4l2_id) {
815                         param = poseidon_tvnorms[i].tlg_tvnorm;
816                         log("name : %s", poseidon_tvnorms[i].name);
817                         goto found;
818                 }
819         }
820         return -EINVAL;
821 found:
822         mutex_lock(&pd->lock);
823         ret = send_set_req(pd, VIDEO_STD_SEL, param, &cmd_status);
824         if (ret || cmd_status)
825                 goto out;
826
827         /* Set vbi size and check the height of the frame */
828         context = &video->context;
829         context->tvnormid = poseidon_tvnorms[i].v4l2_id;
830         if (context->tvnormid & V4L2_STD_525_60) {
831                 vbi->vbi_size = V4L_NTSC_VBI_FRAMESIZE;
832                 height = 480;
833         } else {
834                 vbi->vbi_size = V4L_PAL_VBI_FRAMESIZE;
835                 height = 576;
836         }
837
838         pix = &context->pix;
839         if (pix->height != height) {
840                 pix->height     = height;
841                 pix->sizeimage  = pix->width * pix->height * 2;
842         }
843
844 out:
845         mutex_unlock(&pd->lock);
846         return ret;
847 }
848
849 static int vidioc_s_std(struct file *file, void *fh, v4l2_std_id *norm)
850 {
851         struct front_face *front = fh;
852
853         return set_std(front->pd, norm);
854 }
855
856 static int vidioc_g_std(struct file *file, void *fh, v4l2_std_id *norm)
857 {
858         struct front_face *front = fh;
859
860         *norm = front->pd->video_data.context.tvnormid;
861         return 0;
862 }
863
864 static int vidioc_enum_input(struct file *file, void *fh, struct v4l2_input *in)
865 {
866         if (in->index >= POSEIDON_INPUTS)
867                 return -EINVAL;
868         strcpy(in->name, pd_inputs[in->index].name);
869         in->type  = V4L2_INPUT_TYPE_TUNER;
870
871         /*
872          * the audio input index mixed with this video input,
873          * Poseidon only have one audio/video, set to "0"
874          */
875         in->audioset    = 1;
876         in->tuner       = 0;
877         in->std         = V4L2_STD_ALL;
878         in->status      = 0;
879         return 0;
880 }
881
882 static int vidioc_g_input(struct file *file, void *fh, unsigned int *i)
883 {
884         struct front_face *front = fh;
885         struct poseidon *pd = front->pd;
886         struct running_context *context = &pd->video_data.context;
887
888         *i = context->sig_index;
889         return 0;
890 }
891
892 /* We can support several inputs */
893 static int vidioc_s_input(struct file *file, void *fh, unsigned int i)
894 {
895         struct front_face *front = fh;
896         struct poseidon *pd = front->pd;
897         s32 ret, cmd_status;
898
899         if (i >= POSEIDON_INPUTS)
900                 return -EINVAL;
901         ret = send_set_req(pd, SGNL_SRC_SEL,
902                         pd_inputs[i].tlg_src, &cmd_status);
903         if (ret)
904                 return ret;
905
906         pd->video_data.context.sig_index = i;
907         return 0;
908 }
909
910 static int tlg_s_ctrl(struct v4l2_ctrl *c)
911 {
912         struct poseidon *pd = container_of(c->handler, struct poseidon,
913                                                 video_data.ctrl_handler);
914         struct tuner_custom_parameter_s param = {0};
915         s32 ret = 0, cmd_status, params;
916
917         switch (c->id) {
918         case V4L2_CID_BRIGHTNESS:
919                 param.param_id = CUST_PARM_ID_BRIGHTNESS_CTRL;
920                 break;
921         case V4L2_CID_CONTRAST:
922                 param.param_id = CUST_PARM_ID_CONTRAST_CTRL;
923                 break;
924         case V4L2_CID_HUE:
925                 param.param_id = CUST_PARM_ID_HUE_CTRL;
926                 break;
927         case V4L2_CID_SATURATION:
928                 param.param_id = CUST_PARM_ID_SATURATION_CTRL;
929                 break;
930         }
931         param.param_value = c->val;
932         params = *(s32 *)&param; /* temp code */
933
934         mutex_lock(&pd->lock);
935         ret = send_set_req(pd, TUNER_CUSTOM_PARAMETER, params, &cmd_status);
936         ret = send_set_req(pd, TAKE_REQUEST, 0, &cmd_status);
937         mutex_unlock(&pd->lock);
938
939         set_current_state(TASK_INTERRUPTIBLE);
940         schedule_timeout(HZ/4);
941         return ret;
942 }
943
944 /* Audio ioctls */
945 static int vidioc_enumaudio(struct file *file, void *fh, struct v4l2_audio *a)
946 {
947         if (0 != a->index)
948                 return -EINVAL;
949         a->capability = V4L2_AUDCAP_STEREO;
950         strcpy(a->name, "USB audio in");
951         /*Poseidon have no AVL function.*/
952         a->mode = 0;
953         return 0;
954 }
955
956 static int vidioc_g_audio(struct file *file, void *fh, struct v4l2_audio *a)
957 {
958         a->index = 0;
959         a->capability = V4L2_AUDCAP_STEREO;
960         strcpy(a->name, "USB audio in");
961         a->mode = 0;
962         return 0;
963 }
964
965 static int vidioc_s_audio(struct file *file, void *fh, const struct v4l2_audio *a)
966 {
967         return (0 == a->index) ? 0 : -EINVAL;
968 }
969
970 /* Tuner ioctls */
971 static int vidioc_g_tuner(struct file *file, void *fh, struct v4l2_tuner *tuner)
972 {
973         struct front_face *front        = fh;
974         struct poseidon *pd             = front->pd;
975         struct tuner_atv_sig_stat_s atv_stat;
976         s32 count = 5, ret, cmd_status;
977         int index;
978
979         if (0 != tuner->index)
980                 return -EINVAL;
981
982         mutex_lock(&pd->lock);
983         ret = send_get_req(pd, TUNER_STATUS, TLG_MODE_ANALOG_TV,
984                                 &atv_stat, &cmd_status, sizeof(atv_stat));
985
986         while (atv_stat.sig_lock_busy && count-- && !ret) {
987                 set_current_state(TASK_INTERRUPTIBLE);
988                 schedule_timeout(HZ);
989
990                 ret = send_get_req(pd, TUNER_STATUS, TLG_MODE_ANALOG_TV,
991                                 &atv_stat, &cmd_status, sizeof(atv_stat));
992         }
993         mutex_unlock(&pd->lock);
994
995         if (debug_mode)
996                 log("P:%d,S:%d", atv_stat.sig_present, atv_stat.sig_strength);
997
998         if (ret || cmd_status)
999                 tuner->signal = 0;
1000         else if (atv_stat.sig_present && !atv_stat.sig_strength)
1001                 tuner->signal = 0xFFFF;
1002         else
1003                 tuner->signal = (atv_stat.sig_strength * 255 / 10) << 8;
1004
1005         strcpy(tuner->name, "Telegent Systems");
1006         tuner->type = V4L2_TUNER_ANALOG_TV;
1007         tuner->rangelow = TUNER_FREQ_MIN / 62500;
1008         tuner->rangehigh = TUNER_FREQ_MAX / 62500;
1009         tuner->capability = V4L2_TUNER_CAP_NORM | V4L2_TUNER_CAP_STEREO |
1010                                 V4L2_TUNER_CAP_LANG1 | V4L2_TUNER_CAP_LANG2;
1011         index = pd->video_data.context.audio_idx;
1012         tuner->rxsubchans = pd_audio_modes[index].v4l2_audio_sub;
1013         tuner->audmode = pd_audio_modes[index].v4l2_audio_mode;
1014         tuner->afc = 0;
1015         return 0;
1016 }
1017
1018 static int pd_vidioc_s_tuner(struct poseidon *pd, int index)
1019 {
1020         s32 ret = 0, cmd_status, param, audiomode;
1021
1022         mutex_lock(&pd->lock);
1023         param = pd_audio_modes[index].tlg_audio_mode;
1024         ret = send_set_req(pd, TUNER_AUD_MODE, param, &cmd_status);
1025         audiomode = get_audio_std(pd->video_data.context.tvnormid);
1026         ret |= send_set_req(pd, TUNER_AUD_ANA_STD, audiomode,
1027                                 &cmd_status);
1028         if (!ret)
1029                 pd->video_data.context.audio_idx = index;
1030         mutex_unlock(&pd->lock);
1031         return ret;
1032 }
1033
1034 static int vidioc_s_tuner(struct file *file, void *fh, const struct v4l2_tuner *a)
1035 {
1036         struct front_face *front        = fh;
1037         struct poseidon *pd             = front->pd;
1038         int index;
1039
1040         if (0 != a->index)
1041                 return -EINVAL;
1042         for (index = 0; index < POSEIDON_AUDIOMODS; index++)
1043                 if (a->audmode == pd_audio_modes[index].v4l2_audio_mode)
1044                         return pd_vidioc_s_tuner(pd, index);
1045         return -EINVAL;
1046 }
1047
1048 static int vidioc_g_frequency(struct file *file, void *fh,
1049                         struct v4l2_frequency *freq)
1050 {
1051         struct front_face *front = fh;
1052         struct poseidon *pd = front->pd;
1053         struct running_context *context = &pd->video_data.context;
1054
1055         if (0 != freq->tuner)
1056                 return -EINVAL;
1057         freq->frequency = context->freq;
1058         freq->type = V4L2_TUNER_ANALOG_TV;
1059         return 0;
1060 }
1061
1062 static int set_frequency(struct poseidon *pd, u32 *frequency)
1063 {
1064         s32 ret = 0, param, cmd_status;
1065         struct running_context *context = &pd->video_data.context;
1066
1067         *frequency = clamp(*frequency,
1068                         TUNER_FREQ_MIN / 62500, TUNER_FREQ_MAX / 62500);
1069         param = (*frequency) * 62500 / 1000;
1070
1071         mutex_lock(&pd->lock);
1072         ret = send_set_req(pd, TUNE_FREQ_SELECT, param, &cmd_status);
1073         ret = send_set_req(pd, TAKE_REQUEST, 0, &cmd_status);
1074
1075         msleep(250); /* wait for a while until the hardware is ready. */
1076         context->freq = *frequency;
1077         mutex_unlock(&pd->lock);
1078         return ret;
1079 }
1080
1081 static int vidioc_s_frequency(struct file *file, void *fh,
1082                                 const struct v4l2_frequency *freq)
1083 {
1084         struct front_face *front = fh;
1085         struct poseidon *pd = front->pd;
1086         u32 frequency = freq->frequency;
1087
1088         if (freq->tuner)
1089                 return -EINVAL;
1090 #ifdef CONFIG_PM
1091         pd->pm_suspend = pm_video_suspend;
1092         pd->pm_resume = pm_video_resume;
1093 #endif
1094         return set_frequency(pd, &frequency);
1095 }
1096
1097 static int vidioc_reqbufs(struct file *file, void *fh,
1098                                 struct v4l2_requestbuffers *b)
1099 {
1100         struct front_face *front = file->private_data;
1101         return videobuf_reqbufs(&front->q, b);
1102 }
1103
1104 static int vidioc_querybuf(struct file *file, void *fh, struct v4l2_buffer *b)
1105 {
1106         struct front_face *front = file->private_data;
1107         return videobuf_querybuf(&front->q, b);
1108 }
1109
1110 static int vidioc_qbuf(struct file *file, void *fh, struct v4l2_buffer *b)
1111 {
1112         struct front_face *front = file->private_data;
1113         return videobuf_qbuf(&front->q, b);
1114 }
1115
1116 static int vidioc_dqbuf(struct file *file, void *fh, struct v4l2_buffer *b)
1117 {
1118         struct front_face *front = file->private_data;
1119         return videobuf_dqbuf(&front->q, b, file->f_flags & O_NONBLOCK);
1120 }
1121
1122 /* Just stop the URBs, do not free the URBs */
1123 static int usb_transfer_stop(struct video_data *video)
1124 {
1125         if (video->is_streaming) {
1126                 int i;
1127                 s32 cmd_status;
1128                 struct poseidon *pd = video->pd;
1129
1130                 video->is_streaming = 0;
1131                 for (i = 0; i < SBUF_NUM; ++i) {
1132                         if (video->urb_array[i])
1133                                 usb_kill_urb(video->urb_array[i]);
1134                 }
1135
1136                 send_set_req(pd, PLAY_SERVICE, TLG_TUNE_PLAY_SVC_STOP,
1137                                &cmd_status);
1138         }
1139         return 0;
1140 }
1141
1142 int stop_all_video_stream(struct poseidon *pd)
1143 {
1144         struct video_data *video = &pd->video_data;
1145         struct vbi_data *vbi    = &pd->vbi_data;
1146
1147         mutex_lock(&pd->lock);
1148         if (video->is_streaming) {
1149                 struct front_face *front = video->front;
1150
1151                 /* stop the URBs */
1152                 usb_transfer_stop(video);
1153                 free_all_urb(video);
1154
1155                 /* stop the host side of VIDEO */
1156                 videobuf_stop(&front->q);
1157                 videobuf_mmap_free(&front->q);
1158
1159                 /* stop the host side of VBI */
1160                 front = vbi->front;
1161                 if (front) {
1162                         videobuf_stop(&front->q);
1163                         videobuf_mmap_free(&front->q);
1164                 }
1165         }
1166         mutex_unlock(&pd->lock);
1167         return 0;
1168 }
1169
1170 /*
1171  * The bubbles can seriously damage the video's quality,
1172  * though it occurs in very rare situation.
1173  */
1174 static void iso_bubble_handler(struct work_struct *w)
1175 {
1176         struct video_data *video;
1177         struct poseidon *pd;
1178
1179         video = container_of(w, struct video_data, bubble_work);
1180         pd = video->pd;
1181
1182         mutex_lock(&pd->lock);
1183         usb_transfer_stop(video);
1184         msleep(500);
1185         start_video_stream(pd);
1186         mutex_unlock(&pd->lock);
1187 }
1188
1189
1190 static int vidioc_streamon(struct file *file, void *fh,
1191                                 enum v4l2_buf_type type)
1192 {
1193         struct front_face *front = fh;
1194
1195         if (unlikely(type != front->type))
1196                 return -EINVAL;
1197         return videobuf_streamon(&front->q);
1198 }
1199
1200 static int vidioc_streamoff(struct file *file, void *fh,
1201                                 enum v4l2_buf_type type)
1202 {
1203         struct front_face *front = file->private_data;
1204
1205         if (unlikely(type != front->type))
1206                 return -EINVAL;
1207         return videobuf_streamoff(&front->q);
1208 }
1209
1210 /* Set the firmware's default values : need altersetting */
1211 static int pd_video_checkmode(struct poseidon *pd)
1212 {
1213         s32 ret = 0, cmd_status, audiomode;
1214
1215         set_current_state(TASK_INTERRUPTIBLE);
1216         schedule_timeout(HZ/2);
1217
1218         /* choose the altersetting */
1219         ret = usb_set_interface(pd->udev, 0,
1220                                         (pd->cur_transfer_mode ?
1221                                          ISO_3K_BULK_ALTERNATE_IFACE :
1222                                          BULK_ALTERNATE_IFACE));
1223         if (ret < 0)
1224                 goto error;
1225
1226         /* set default parameters for PAL-D , with the VBI enabled*/
1227         ret = set_tuner_mode(pd, TLG_MODE_ANALOG_TV);
1228         ret |= send_set_req(pd, SGNL_SRC_SEL,
1229                                 TLG_SIG_SRC_ANTENNA, &cmd_status);
1230         ret |= send_set_req(pd, VIDEO_STD_SEL,
1231                                 TLG_TUNE_VSTD_PAL_D, &cmd_status);
1232         ret |= send_set_req(pd, VIDEO_STREAM_FMT_SEL,
1233                                 TLG_TUNER_VID_FORMAT_YUV, &cmd_status);
1234         ret |= send_set_req(pd, VIDEO_ROSOLU_SEL,
1235                                 TLG_TUNE_VID_RES_720, &cmd_status);
1236         ret |= send_set_req(pd, TUNE_FREQ_SELECT, TUNER_FREQ_MIN, &cmd_status);
1237         ret |= send_set_req(pd, VBI_DATA_SEL, 1, &cmd_status);/* enable vbi */
1238
1239         /* set the audio */
1240         audiomode = get_audio_std(pd->video_data.context.tvnormid);
1241         ret |= send_set_req(pd, TUNER_AUD_ANA_STD, audiomode, &cmd_status);
1242         ret |= send_set_req(pd, TUNER_AUD_MODE,
1243                                 TLG_TUNE_TVAUDIO_MODE_STEREO, &cmd_status);
1244         ret |= send_set_req(pd, AUDIO_SAMPLE_RATE_SEL,
1245                                 ATV_AUDIO_RATE_48K, &cmd_status);
1246 error:
1247         return ret;
1248 }
1249
1250 #ifdef CONFIG_PM
1251 static int pm_video_suspend(struct poseidon *pd)
1252 {
1253         /* stop audio */
1254         pm_alsa_suspend(pd);
1255
1256         /* stop and free all the URBs */
1257         usb_transfer_stop(&pd->video_data);
1258         free_all_urb(&pd->video_data);
1259
1260         /* reset the interface */
1261         usb_set_interface(pd->udev, 0, 0);
1262         msleep(300);
1263         return 0;
1264 }
1265
1266 static int restore_v4l2_context(struct poseidon *pd,
1267                                 struct running_context *context)
1268 {
1269         struct front_face *front = pd->video_data.front;
1270
1271         pd_video_checkmode(pd);
1272
1273         set_std(pd, &context->tvnormid);
1274         vidioc_s_input(NULL, front, context->sig_index);
1275         pd_vidioc_s_tuner(pd, context->audio_idx);
1276         pd_vidioc_s_fmt(pd, &context->pix);
1277         set_frequency(pd, &context->freq);
1278         return 0;
1279 }
1280
1281 static int pm_video_resume(struct poseidon *pd)
1282 {
1283         struct video_data *video = &pd->video_data;
1284
1285         /* resume the video */
1286         /* [1] restore the origin V4L2 parameters */
1287         restore_v4l2_context(pd, &video->context);
1288
1289         /* [2] initiate video copy variables */
1290         if (video->front->curr_frame)
1291                 init_copy(video, 0);
1292
1293         /* [3] fire urbs        */
1294         start_video_stream(pd);
1295
1296         /* resume the audio */
1297         pm_alsa_resume(pd);
1298         return 0;
1299 }
1300 #endif
1301
1302 void set_debug_mode(struct video_device *vfd, int debug_mode)
1303 {
1304         vfd->debug = 0;
1305         if (debug_mode & 0x1)
1306                 vfd->debug = V4L2_DEBUG_IOCTL;
1307         if (debug_mode & 0x2)
1308                 vfd->debug = V4L2_DEBUG_IOCTL | V4L2_DEBUG_IOCTL_ARG;
1309 }
1310
1311 static void init_video_context(struct running_context *context)
1312 {
1313         context->sig_index      = 0;
1314         context->audio_idx      = 1; /* stereo */
1315         context->tvnormid       = V4L2_STD_PAL_D;
1316         context->pix = (struct v4l2_pix_format) {
1317                                 .width          = 720,
1318                                 .height         = 576,
1319                                 .pixelformat    = V4L2_PIX_FMT_YUYV,
1320                                 .field          = V4L2_FIELD_INTERLACED,
1321                                 .bytesperline   = 720 * 2,
1322                                 .sizeimage      = 720 * 576 * 2,
1323                                 .colorspace     = V4L2_COLORSPACE_SMPTE170M,
1324                                 .priv           = 0
1325                         };
1326 }
1327
1328 static int pd_video_open(struct file *file)
1329 {
1330         struct video_device *vfd = video_devdata(file);
1331         struct poseidon *pd = video_get_drvdata(vfd);
1332         struct front_face *front = NULL;
1333         int ret = -ENOMEM;
1334
1335         mutex_lock(&pd->lock);
1336         usb_autopm_get_interface(pd->interface);
1337
1338         if (pd->state && !(pd->state & POSEIDON_STATE_ANALOG)) {
1339                 ret = -EBUSY;
1340                 goto out;
1341         }
1342         front = kzalloc(sizeof(struct front_face), GFP_KERNEL);
1343         if (!front)
1344                 goto out;
1345         if (vfd->vfl_type == VFL_TYPE_GRABBER) {
1346                 pd->cur_transfer_mode   = usb_transfer_mode;/* bulk or iso */
1347                 init_video_context(&pd->video_data.context);
1348
1349                 ret = pd_video_checkmode(pd);
1350                 if (ret < 0) {
1351                         kfree(front);
1352                         ret = -1;
1353                         goto out;
1354                 }
1355
1356                 front->type             = V4L2_BUF_TYPE_VIDEO_CAPTURE;
1357                 pd->video_data.users++;
1358                 set_debug_mode(vfd, debug_mode);
1359
1360                 videobuf_queue_vmalloc_init(&front->q, &pd_video_qops,
1361                                 NULL, &front->queue_lock,
1362                                 V4L2_BUF_TYPE_VIDEO_CAPTURE,
1363                                 V4L2_FIELD_INTERLACED,/* video is interlacd */
1364                                 sizeof(struct videobuf_buffer),/*it's enough*/
1365                                 front, NULL);
1366         } else {
1367                 front->type     = V4L2_BUF_TYPE_VBI_CAPTURE;
1368                 pd->vbi_data.front = front;
1369                 pd->vbi_data.users++;
1370
1371                 videobuf_queue_vmalloc_init(&front->q, &pd_video_qops,
1372                                 NULL, &front->queue_lock,
1373                                 V4L2_BUF_TYPE_VBI_CAPTURE,
1374                                 V4L2_FIELD_NONE, /* vbi is NONE mode */
1375                                 sizeof(struct videobuf_buffer),
1376                                 front, NULL);
1377         }
1378
1379         pd->state |= POSEIDON_STATE_ANALOG;
1380         front->pd = pd;
1381         front->curr_frame = NULL;
1382         INIT_LIST_HEAD(&front->active);
1383         spin_lock_init(&front->queue_lock);
1384
1385         file->private_data = front;
1386         kref_get(&pd->kref);
1387
1388         mutex_unlock(&pd->lock);
1389         return 0;
1390 out:
1391         usb_autopm_put_interface(pd->interface);
1392         mutex_unlock(&pd->lock);
1393         return ret;
1394 }
1395
1396 static int pd_video_release(struct file *file)
1397 {
1398         struct front_face *front = file->private_data;
1399         struct poseidon *pd = front->pd;
1400         s32 cmd_status = 0;
1401
1402         mutex_lock(&pd->lock);
1403
1404         if (front->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) {
1405                 /* stop the device, and free the URBs */
1406                 usb_transfer_stop(&pd->video_data);
1407                 free_all_urb(&pd->video_data);
1408
1409                 /* stop the firmware */
1410                 send_set_req(pd, PLAY_SERVICE, TLG_TUNE_PLAY_SVC_STOP,
1411                                &cmd_status);
1412
1413                 pd->file_for_stream = NULL;
1414                 pd->video_data.users--;
1415         } else if (front->type  == V4L2_BUF_TYPE_VBI_CAPTURE) {
1416                 pd->vbi_data.front = NULL;
1417                 pd->vbi_data.users--;
1418         }
1419         if (!pd->vbi_data.users && !pd->video_data.users)
1420                 pd->state &= ~POSEIDON_STATE_ANALOG;
1421         videobuf_stop(&front->q);
1422         videobuf_mmap_free(&front->q);
1423
1424         usb_autopm_put_interface(pd->interface);
1425         mutex_unlock(&pd->lock);
1426
1427         kfree(front);
1428         file->private_data = NULL;
1429         kref_put(&pd->kref, poseidon_delete);
1430         return 0;
1431 }
1432
1433 static int pd_video_mmap(struct file *file, struct vm_area_struct *vma)
1434 {
1435         struct front_face *front = file->private_data;
1436         return  videobuf_mmap_mapper(&front->q, vma);
1437 }
1438
1439 static unsigned int pd_video_poll(struct file *file, poll_table *table)
1440 {
1441         struct front_face *front = file->private_data;
1442         return videobuf_poll_stream(file, &front->q, table);
1443 }
1444
1445 static ssize_t pd_video_read(struct file *file, char __user *buffer,
1446                         size_t count, loff_t *ppos)
1447 {
1448         struct front_face *front = file->private_data;
1449         return videobuf_read_stream(&front->q, buffer, count, ppos,
1450                                 0, file->f_flags & O_NONBLOCK);
1451 }
1452
1453 /* This struct works for both VIDEO and VBI */
1454 static const struct v4l2_file_operations pd_video_fops = {
1455         .owner          = THIS_MODULE,
1456         .open           = pd_video_open,
1457         .release        = pd_video_release,
1458         .read           = pd_video_read,
1459         .poll           = pd_video_poll,
1460         .mmap           = pd_video_mmap,
1461         .ioctl          = video_ioctl2, /* maybe changed in future */
1462 };
1463
1464 static const struct v4l2_ioctl_ops pd_video_ioctl_ops = {
1465         .vidioc_querycap        = vidioc_querycap,
1466
1467         /* Video format */
1468         .vidioc_g_fmt_vid_cap   = vidioc_g_fmt,
1469         .vidioc_enum_fmt_vid_cap        = vidioc_enum_fmt,
1470         .vidioc_s_fmt_vid_cap   = vidioc_s_fmt,
1471         .vidioc_g_fmt_vbi_cap   = vidioc_g_fmt_vbi, /* VBI */
1472
1473         /* Input */
1474         .vidioc_g_input         = vidioc_g_input,
1475         .vidioc_s_input         = vidioc_s_input,
1476         .vidioc_enum_input      = vidioc_enum_input,
1477
1478         /* Audio ioctls */
1479         .vidioc_enumaudio       = vidioc_enumaudio,
1480         .vidioc_g_audio         = vidioc_g_audio,
1481         .vidioc_s_audio         = vidioc_s_audio,
1482
1483         /* Tuner ioctls */
1484         .vidioc_g_tuner         = vidioc_g_tuner,
1485         .vidioc_s_tuner         = vidioc_s_tuner,
1486         .vidioc_g_std           = vidioc_g_std,
1487         .vidioc_s_std           = vidioc_s_std,
1488         .vidioc_g_frequency     = vidioc_g_frequency,
1489         .vidioc_s_frequency     = vidioc_s_frequency,
1490
1491         /* Buffer handlers */
1492         .vidioc_reqbufs         = vidioc_reqbufs,
1493         .vidioc_querybuf        = vidioc_querybuf,
1494         .vidioc_qbuf            = vidioc_qbuf,
1495         .vidioc_dqbuf           = vidioc_dqbuf,
1496
1497         /* Stream on/off */
1498         .vidioc_streamon        = vidioc_streamon,
1499         .vidioc_streamoff       = vidioc_streamoff,
1500 };
1501
1502 static struct video_device pd_video_template = {
1503         .name = "Telegent-Video",
1504         .fops = &pd_video_fops,
1505         .minor = -1,
1506         .release = video_device_release_empty,
1507         .tvnorms = V4L2_STD_ALL,
1508         .ioctl_ops = &pd_video_ioctl_ops,
1509 };
1510
1511 static const struct v4l2_ctrl_ops tlg_ctrl_ops = {
1512         .s_ctrl = tlg_s_ctrl,
1513 };
1514
1515 void pd_video_exit(struct poseidon *pd)
1516 {
1517         struct video_data *video = &pd->video_data;
1518         struct vbi_data *vbi = &pd->vbi_data;
1519
1520         video_unregister_device(&video->v_dev);
1521         video_unregister_device(&vbi->v_dev);
1522         v4l2_ctrl_handler_free(&video->ctrl_handler);
1523         log();
1524 }
1525
1526 int pd_video_init(struct poseidon *pd)
1527 {
1528         struct video_data *video = &pd->video_data;
1529         struct vbi_data *vbi    = &pd->vbi_data;
1530         struct v4l2_ctrl_handler *hdl = &video->ctrl_handler;
1531         u32 freq = TUNER_FREQ_MIN / 62500;
1532         int ret = -ENOMEM;
1533
1534         v4l2_ctrl_handler_init(hdl, 4);
1535         v4l2_ctrl_new_std(hdl, &tlg_ctrl_ops, V4L2_CID_BRIGHTNESS,
1536                         0, 10000, 1, 100);
1537         v4l2_ctrl_new_std(hdl, &tlg_ctrl_ops, V4L2_CID_CONTRAST,
1538                         0, 10000, 1, 100);
1539         v4l2_ctrl_new_std(hdl, &tlg_ctrl_ops, V4L2_CID_HUE,
1540                         0, 10000, 1, 100);
1541         v4l2_ctrl_new_std(hdl, &tlg_ctrl_ops, V4L2_CID_SATURATION,
1542                         0, 10000, 1, 100);
1543         if (hdl->error) {
1544                 v4l2_ctrl_handler_free(hdl);
1545                 return hdl->error;
1546         }
1547         set_frequency(pd, &freq);
1548         video->v_dev = pd_video_template;
1549         video->v_dev.v4l2_dev = &pd->v4l2_dev;
1550         video->v_dev.ctrl_handler = hdl;
1551         video_set_drvdata(&video->v_dev, pd);
1552
1553         ret = video_register_device(&video->v_dev, VFL_TYPE_GRABBER, -1);
1554         if (ret != 0)
1555                 goto out;
1556
1557         /* VBI uses the same template as video */
1558         vbi->v_dev = pd_video_template;
1559         vbi->v_dev.v4l2_dev = &pd->v4l2_dev;
1560         vbi->v_dev.ctrl_handler = hdl;
1561         video_set_drvdata(&vbi->v_dev, pd);
1562         ret = video_register_device(&vbi->v_dev, VFL_TYPE_VBI, -1);
1563         if (ret != 0)
1564                 goto out;
1565         log("register VIDEO/VBI devices");
1566         return 0;
1567 out:
1568         log("VIDEO/VBI devices register failed, : %d", ret);
1569         pd_video_exit(pd);
1570         return ret;
1571 }