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