drivers/staging/solo6x10/solo6010-v4l2.c

   1 /*
   2  * Copyright (C) 2010 Bluecherry, LLC www.bluecherrydvr.com
   3  * Copyright (C) 2010 Ben Collins <bcollins@bluecherry.net>
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License as published by
   7  * the Free Software Foundation; either version 2 of the License, or
   8  * (at your option) any later version.
   9  *
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  * GNU General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License
  16  * along with this program; if not, write to the Free Software
  17  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  18  */
  19
  20 #include <linux/kernel.h>
  21 #include <linux/module.h>
  22 #include <linux/kthread.h>
  23 #include <linux/freezer.h>
  24
  25 #include <media/v4l2-ioctl.h>
  26 #include <media/v4l2-common.h>
  27 #include <media/videobuf-dma-sg.h>
  28
  29 #include "solo6010.h"
  30 #include "solo6010-tw28.h"
  31
  32 #define SOLO_HW_BPL             2048
  33 #define SOLO_DISP_PIX_FIELD     V4L2_FIELD_INTERLACED
  34
  35 /* Image size is two fields, SOLO_HW_BPL is one horizontal line */
  36 #define solo_vlines(__solo)     (__solo->video_vsize * 2)
  37 #define solo_image_size(__solo) (solo_bytesperline(__solo) * \
  38                                  solo_vlines(__solo))
  39 #define solo_bytesperline(__solo) (__solo->video_hsize * 2)
  40
  41 #define MIN_VID_BUFFERS         4
  42
  43 /* Simple file handle */
  44 struct solo_filehandle {
  45         struct solo6010_dev     *solo_dev;
  46         struct videobuf_queue   vidq;
  47         struct task_struct      *kthread;
  48         spinlock_t              slock;
  49         int                     old_write;
  50         struct list_head        vidq_active;
  51         struct p2m_desc         desc[SOLO_NR_P2M_DESC];
  52         int                     desc_idx;
  53 };
  54
  55 unsigned video_nr = -1;
  56 module_param(video_nr, uint, 0644);
  57 MODULE_PARM_DESC(video_nr, "videoX start number, -1 is autodetect (default)");
  58
  59 static void erase_on(struct solo6010_dev *solo_dev)
  60 {
  61         solo_reg_write(solo_dev, SOLO_VO_DISP_ERASE, SOLO_VO_DISP_ERASE_ON);
  62         solo_dev->erasing = 1;
  63         solo_dev->frame_blank = 0;
  64 }
  65
  66 static int erase_off(struct solo6010_dev *solo_dev)
  67 {
  68         if (!solo_dev->erasing)
  69                 return 0;
  70
  71         /* First time around, assert erase off */
  72         if (!solo_dev->frame_blank)
  73                 solo_reg_write(solo_dev, SOLO_VO_DISP_ERASE, 0);
  74         /* Keep the erasing flag on for 8 frames minimum */
  75         if (solo_dev->frame_blank++ >= 8)
  76                 solo_dev->erasing = 0;
  77
  78         return 1;
  79 }
  80
  81 void solo_video_in_isr(struct solo6010_dev *solo_dev)
  82 {
  83         solo_reg_write(solo_dev, SOLO_IRQ_STAT, SOLO_IRQ_VIDEO_IN);
  84         wake_up_interruptible(&solo_dev->disp_thread_wait);
  85 }
  86
  87 static void solo_win_setup(struct solo6010_dev *solo_dev, u8 ch,
  88                            int sx, int sy, int ex, int ey, int scale)
  89 {
  90         if (ch >= solo_dev->nr_chans)
  91                 return;
  92
  93         /* Here, we just keep window/channel the same */
  94         solo_reg_write(solo_dev, SOLO_VI_WIN_CTRL0(ch),
  95                        SOLO_VI_WIN_CHANNEL(ch) |
  96                        SOLO_VI_WIN_SX(sx) |
  97                        SOLO_VI_WIN_EX(ex) |
  98                        SOLO_VI_WIN_SCALE(scale));
  99
 100         solo_reg_write(solo_dev, SOLO_VI_WIN_CTRL1(ch),
 101                        SOLO_VI_WIN_SY(sy) |
 102                        SOLO_VI_WIN_EY(ey));
 103 }
 104
 105 static int solo_v4l2_ch_ext_4up(struct solo6010_dev *solo_dev, u8 idx, int on)
 106 {
 107         u8 ch = idx * 4;
 108
 109         if (ch >= solo_dev->nr_chans)
 110                 return -EINVAL;
 111
 112         if (!on) {
 113                 u8 i;
 114                 for (i = ch; i < ch + 4; i++)
 115                         solo_win_setup(solo_dev, i, solo_dev->video_hsize,
 116                                        solo_vlines(solo_dev),
 117                                        solo_dev->video_hsize,
 118                                        solo_vlines(solo_dev), 0);
 119                 return 0;
 120         }
 121
 122         /* Row 1 */
 123         solo_win_setup(solo_dev, ch, 0, 0, solo_dev->video_hsize / 2,
 124                        solo_vlines(solo_dev) / 2, 3);
 125         solo_win_setup(solo_dev, ch + 1, solo_dev->video_hsize / 2, 0,
 126                        solo_dev->video_hsize, solo_vlines(solo_dev) / 2, 3);
 127         /* Row 2 */
 128         solo_win_setup(solo_dev, ch + 2, 0, solo_vlines(solo_dev) / 2,
 129                        solo_dev->video_hsize / 2, solo_vlines(solo_dev), 3);
 130         solo_win_setup(solo_dev, ch + 3, solo_dev->video_hsize / 2,
 131                        solo_vlines(solo_dev) / 2, solo_dev->video_hsize,
 132                        solo_vlines(solo_dev), 3);
 133
 134         return 0;
 135 }
 136
 137 static int solo_v4l2_ch_ext_16up(struct solo6010_dev *solo_dev, int on)
 138 {
 139         int sy, ysize, hsize, i;
 140
 141         if (!on) {
 142                 for (i = 0; i < 16; i++)
 143                         solo_win_setup(solo_dev, i, solo_dev->video_hsize,
 144                                        solo_vlines(solo_dev),
 145                                        solo_dev->video_hsize,
 146                                        solo_vlines(solo_dev), 0);
 147                 return 0;
 148         }
 149
 150         ysize = solo_vlines(solo_dev) / 4;
 151         hsize = solo_dev->video_hsize / 4;
 152
 153         for (sy = 0, i = 0; i < 4; i++, sy += ysize) {
 154                 solo_win_setup(solo_dev, i * 4, 0, sy, hsize,
 155                                sy + ysize, 5);
 156                 solo_win_setup(solo_dev, (i * 4) + 1, hsize, sy,
 157                                hsize * 2, sy + ysize, 5);
 158                 solo_win_setup(solo_dev, (i * 4) + 2, hsize * 2, sy,
 159                                hsize * 3, sy + ysize, 5);
 160                 solo_win_setup(solo_dev, (i * 4) + 3, hsize * 3, sy,
 161                                solo_dev->video_hsize, sy + ysize, 5);
 162         }
 163
 164         return 0;
 165 }
 166
 167 static int solo_v4l2_ch(struct solo6010_dev *solo_dev, u8 ch, int on)
 168 {
 169         u8 ext_ch;
 170
 171         if (ch < solo_dev->nr_chans) {
 172                 solo_win_setup(solo_dev, ch, on ? 0 : solo_dev->video_hsize,
 173                                on ? 0 : solo_vlines(solo_dev),
 174                                solo_dev->video_hsize, solo_vlines(solo_dev),
 175                                on ? 1 : 0);
 176                 return 0;
 177         }
 178
 179         if (ch >= solo_dev->nr_chans + solo_dev->nr_ext)
 180                 return -EINVAL;
 181
 182         ext_ch = ch - solo_dev->nr_chans;
 183
 184         /* 4up's first */
 185         if (ext_ch < 4)
 186                 return solo_v4l2_ch_ext_4up(solo_dev, ext_ch, on);
 187
 188         /* Remaining case is 16up for 16-port */
 189         return solo_v4l2_ch_ext_16up(solo_dev, on);
 190 }
 191
 192 static int solo_v4l2_set_ch(struct solo6010_dev *solo_dev, u8 ch)
 193 {
 194         if (ch >= solo_dev->nr_chans + solo_dev->nr_ext)
 195                 return -EINVAL;
 196
 197         erase_on(solo_dev);
 198
 199         solo_v4l2_ch(solo_dev, solo_dev->cur_disp_ch, 0);
 200         solo_v4l2_ch(solo_dev, ch, 1);
 201
 202         solo_dev->cur_disp_ch = ch;
 203
 204         return 0;
 205 }
 206
 207 static void disp_reset_desc(struct solo_filehandle *fh)
 208 {
 209         /* We use desc mode, which ignores desc 0 */
 210         memset(fh->desc, 0, sizeof(*fh->desc));
 211         fh->desc_idx = 1;
 212 }
 213
 214 static int disp_flush_descs(struct solo_filehandle *fh)
 215 {
 216         int ret;
 217
 218         if (!fh->desc_idx)
 219                 return 0;
 220
 221         ret = solo_p2m_dma_desc(fh->solo_dev, SOLO_P2M_DMA_ID_DISP,
 222                                 fh->desc, fh->desc_idx);
 223         disp_reset_desc(fh);
 224
 225         return ret;
 226 }
 227
 228 static int disp_push_desc(struct solo_filehandle *fh, dma_addr_t dma_addr,
 229                       u32 ext_addr, int size, int repeat, int ext_size)
 230 {
 231         if (fh->desc_idx >= SOLO_NR_P2M_DESC) {
 232                 int ret = disp_flush_descs(fh);
 233                 if (ret)
 234                         return ret;
 235         }
 236
 237         solo_p2m_push_desc(&fh->desc[fh->desc_idx], 0, dma_addr, ext_addr,
 238                            size, repeat, ext_size);
 239         fh->desc_idx++;
 240
 241         return 0;
 242 }
 243
 244 static void solo_fillbuf(struct solo_filehandle *fh,
 245                          struct videobuf_buffer *vb)
 246 {
 247         struct solo6010_dev *solo_dev = fh->solo_dev;
 248         struct videobuf_dmabuf *vbuf;
 249         unsigned int fdma_addr;
 250         int error = 1;
 251         int i;
 252         struct scatterlist *sg;
 253         dma_addr_t sg_dma;
 254         int sg_size_left;
 255
 256         vbuf = videobuf_to_dma(vb);
 257         if (!vbuf)
 258                 goto finish_buf;
 259
 260         if (erase_off(solo_dev)) {
 261                 int i;
 262
 263                 /* Just blit to the entire sg list, ignoring size */
 264                 for_each_sg(vbuf->sglist, sg, vbuf->sglen, i) {
 265                         void *p = sg_virt(sg);
 266                         size_t len = sg_dma_len(sg);
 267
 268                         for (i = 0; i < len; i += 2) {
 269                                 ((u8 *)p)[i] = 0x80;
 270                                 ((u8 *)p)[i + 1] = 0x00;
 271                         }
 272                 }
 273
 274                 error = 0;
 275                 goto finish_buf;
 276         }
 277
 278         disp_reset_desc(fh);
 279         sg = vbuf->sglist;
 280         sg_dma = sg_dma_address(sg);
 281         sg_size_left = sg_dma_len(sg);
 282
 283         fdma_addr = SOLO_DISP_EXT_ADDR(solo_dev) + (fh->old_write *
 284                         (SOLO_HW_BPL * solo_vlines(solo_dev)));
 285
 286         for (i = 0; i < solo_vlines(solo_dev); i++) {
 287                 int line_len = solo_bytesperline(solo_dev);
 288                 int lines;
 289
 290                 if (!sg_size_left) {
 291                         sg = sg_next(sg);
 292                         if (sg == NULL)
 293                                 goto finish_buf;
 294                         sg_dma = sg_dma_address(sg);
 295                         sg_size_left = sg_dma_len(sg);
 296                 }
 297
 298                 /* No room for an entire line, so chunk it up */
 299                 if (sg_size_left < line_len) {
 300                         int this_addr = fdma_addr;
 301
 302                         while (line_len > 0) {
 303                                 int this_write;
 304
 305                                 if (!sg_size_left) {
 306                                         sg = sg_next(sg);
 307                                         if (sg == NULL)
 308                                                 goto finish_buf;
 309                                         sg_dma = sg_dma_address(sg);
 310                                         sg_size_left = sg_dma_len(sg);
 311                                 }
 312
 313                                 this_write = min(sg_size_left, line_len);
 314
 315                                 if (disp_push_desc(fh, sg_dma, this_addr,
 316                                                    this_write, 0, 0))
 317                                         goto finish_buf;
 318
 319                                 line_len -= this_write;
 320                                 sg_size_left -= this_write;
 321                                 sg_dma += this_write;
 322                                 this_addr += this_write;
 323                         }
 324
 325                         fdma_addr += SOLO_HW_BPL;
 326                         continue;
 327                 }
 328
 329                 /* Shove as many lines into a repeating descriptor as possible */
 330                 lines = min(sg_size_left / line_len,
 331                             solo_vlines(solo_dev) - i);
 332
 333                 if (disp_push_desc(fh, sg_dma, fdma_addr, line_len,
 334                                    lines - 1, SOLO_HW_BPL))
 335                         goto finish_buf;
 336
 337                 i += lines - 1;
 338                 fdma_addr += SOLO_HW_BPL * lines;
 339                 sg_dma += lines * line_len;
 340                 sg_size_left -= lines * line_len;
 341         }
 342
 343         error = disp_flush_descs(fh);
 344
 345 finish_buf:
 346         if (error) {
 347                 vb->state = VIDEOBUF_ERROR;
 348         } else {
 349                 vb->size = solo_vlines(solo_dev) * solo_bytesperline(solo_dev);
 350                 vb->state = VIDEOBUF_DONE;
 351                 vb->field_count++;
 352                 do_gettimeofday(&vb->ts);
 353         }
 354
 355         wake_up(&vb->done);
 356
 357         return;
 358 }
 359
 360 static void solo_thread_try(struct solo_filehandle *fh)
 361 {
 362         struct videobuf_buffer *vb;
 363         unsigned int cur_write;
 364
 365         for (;;) {
 366                 spin_lock(&fh->slock);
 367
 368                 if (list_empty(&fh->vidq_active))
 369                         break;
 370
 371                 vb = list_first_entry(&fh->vidq_active, struct videobuf_buffer,
 372                                       queue);
 373
 374                 if (!waitqueue_active(&vb->done))
 375                         break;
 376
 377                 cur_write = SOLO_VI_STATUS0_PAGE(solo_reg_read(fh->solo_dev,
 378                                                  SOLO_VI_STATUS0));
 379                 if (cur_write == fh->old_write)
 380                         break;
 381
 382                 fh->old_write = cur_write;
 383                 list_del(&vb->queue);
 384
 385                 spin_unlock(&fh->slock);
 386
 387                 solo_fillbuf(fh, vb);
 388         }
 389
 390         assert_spin_locked(&fh->slock);
 391         spin_unlock(&fh->slock);
 392 }
 393
 394 static int solo_thread(void *data)
 395 {
 396         struct solo_filehandle *fh = data;
 397         struct solo6010_dev *solo_dev = fh->solo_dev;
 398         DECLARE_WAITQUEUE(wait, current);
 399
 400         set_freezable();
 401         add_wait_queue(&solo_dev->disp_thread_wait, &wait);
 402
 403         for (;;) {
 404                 long timeout = schedule_timeout_interruptible(HZ);
 405                 if (timeout == -ERESTARTSYS || kthread_should_stop())
 406                         break;
 407                 solo_thread_try(fh);
 408                 try_to_freeze();
 409         }
 410
 411         remove_wait_queue(&solo_dev->disp_thread_wait, &wait);
 412
 413         return 0;
 414 }
 415
 416 static int solo_start_thread(struct solo_filehandle *fh)
 417 {
 418         fh->kthread = kthread_run(solo_thread, fh, SOLO6010_NAME "_disp");
 419
 420         if (IS_ERR(fh->kthread))
 421                 return PTR_ERR(fh->kthread);
 422
 423         return 0;
 424 }
 425
 426 static void solo_stop_thread(struct solo_filehandle *fh)
 427 {
 428         if (fh->kthread) {
 429                 kthread_stop(fh->kthread);
 430                 fh->kthread = NULL;
 431         }
 432 }
 433
 434 static int solo_buf_setup(struct videobuf_queue *vq, unsigned int *count,
 435                           unsigned int *size)
 436 {
 437         struct solo_filehandle *fh = vq->priv_data;
 438         struct solo6010_dev *solo_dev  = fh->solo_dev;
 439
 440         *size = solo_image_size(solo_dev);
 441
 442         if (*count < MIN_VID_BUFFERS)
 443                 *count = MIN_VID_BUFFERS;
 444
 445         return 0;
 446 }
 447
 448 static int solo_buf_prepare(struct videobuf_queue *vq,
 449                             struct videobuf_buffer *vb, enum v4l2_field field)
 450 {
 451         struct solo_filehandle *fh  = vq->priv_data;
 452         struct solo6010_dev *solo_dev = fh->solo_dev;
 453
 454         vb->size = solo_image_size(solo_dev);
 455         if (vb->baddr != 0 && vb->bsize < vb->size)
 456                 return -EINVAL;
 457
 458         /* XXX: These properties only change when queue is idle */
 459         vb->width  = solo_dev->video_hsize;
 460         vb->height = solo_vlines(solo_dev);
 461         vb->bytesperline = solo_bytesperline(solo_dev);
 462         vb->field  = field;
 463
 464         if (vb->state == VIDEOBUF_NEEDS_INIT) {
 465                 int rc = videobuf_iolock(vq, vb, NULL);
 466                 if (rc < 0) {
 467                         struct videobuf_dmabuf *dma = videobuf_to_dma(vb);
 468                         videobuf_dma_unmap(vq->dev, dma);
 469                         videobuf_dma_free(dma);
 470                         vb->state = VIDEOBUF_NEEDS_INIT;
 471                         return rc;
 472                 }
 473         }
 474         vb->state = VIDEOBUF_PREPARED;
 475
 476         return 0;
 477 }
 478
 479 static void solo_buf_queue(struct videobuf_queue *vq,
 480                            struct videobuf_buffer *vb)
 481 {
 482         struct solo_filehandle *fh = vq->priv_data;
 483         struct solo6010_dev *solo_dev = fh->solo_dev;
 484
 485         vb->state = VIDEOBUF_QUEUED;
 486         list_add_tail(&vb->queue, &fh->vidq_active);
 487         wake_up_interruptible(&solo_dev->disp_thread_wait);
 488 }
 489
 490 static void solo_buf_release(struct videobuf_queue *vq,
 491                              struct videobuf_buffer *vb)
 492 {
 493         struct videobuf_dmabuf *dma = videobuf_to_dma(vb);
 494
 495         videobuf_dma_unmap(vq->dev, dma);
 496         videobuf_dma_free(dma);
 497         vb->state = VIDEOBUF_NEEDS_INIT;
 498 }
 499
 500 static struct videobuf_queue_ops solo_video_qops = {
 501         .buf_setup      = solo_buf_setup,
 502         .buf_prepare    = solo_buf_prepare,
 503         .buf_queue      = solo_buf_queue,
 504         .buf_release    = solo_buf_release,
 505 };
 506
 507 static unsigned int solo_v4l2_poll(struct file *file,
 508                                    struct poll_table_struct *wait)
 509 {
 510         struct solo_filehandle *fh = file->private_data;
 511
 512         return videobuf_poll_stream(file, &fh->vidq, wait);
 513 }
 514
 515 static int solo_v4l2_mmap(struct file *file, struct vm_area_struct *vma)
 516 {
 517         struct solo_filehandle *fh = file->private_data;
 518
 519         return videobuf_mmap_mapper(&fh->vidq, vma);
 520 }
 521
 522 static int solo_v4l2_open(struct file *file)
 523 {
 524         struct solo6010_dev *solo_dev = video_drvdata(file);
 525         struct solo_filehandle *fh;
 526         int ret;
 527
 528         fh = kzalloc(sizeof(*fh), GFP_KERNEL);
 529         if (fh == NULL)
 530                 return -ENOMEM;
 531
 532         spin_lock_init(&fh->slock);
 533         INIT_LIST_HEAD(&fh->vidq_active);
 534         fh->solo_dev = solo_dev;
 535         file->private_data = fh;
 536
 537         ret = solo_start_thread(fh);
 538         if (ret) {
 539                 kfree(fh);
 540                 return ret;
 541         }
 542
 543         videobuf_queue_sg_init(&fh->vidq, &solo_video_qops,
 544                                &solo_dev->pdev->dev, &fh->slock,
 545                                V4L2_BUF_TYPE_VIDEO_CAPTURE,
 546                                SOLO_DISP_PIX_FIELD,
 547                                sizeof(struct videobuf_buffer), fh, NULL);
 548
 549         return 0;
 550 }
 551
 552 static ssize_t solo_v4l2_read(struct file *file, char __user *data,
 553                               size_t count, loff_t *ppos)
 554 {
 555         struct solo_filehandle *fh = file->private_data;
 556
 557         return videobuf_read_stream(&fh->vidq, data, count, ppos, 0,
 558                                     file->f_flags & O_NONBLOCK);
 559 }
 560
 561 static int solo_v4l2_release(struct file *file)
 562 {
 563         struct solo_filehandle *fh = file->private_data;
 564
 565         videobuf_stop(&fh->vidq);
 566         videobuf_mmap_free(&fh->vidq);
 567         solo_stop_thread(fh);
 568         kfree(fh);
 569
 570         return 0;
 571 }
 572
 573 static int solo_querycap(struct file *file, void  *priv,
 574                          struct v4l2_capability *cap)
 575 {
 576         struct solo_filehandle  *fh  = priv;
 577         struct solo6010_dev *solo_dev = fh->solo_dev;
 578
 579         strcpy(cap->driver, SOLO6010_NAME);
 580         strcpy(cap->card, "Softlogic 6010");
 581         snprintf(cap->bus_info, sizeof(cap->bus_info), "PCI %s",
 582                  pci_name(solo_dev->pdev));
 583         cap->version = SOLO6010_VER_NUM;
 584         cap->capabilities =     V4L2_CAP_VIDEO_CAPTURE |
 585                                 V4L2_CAP_READWRITE |
 586                                 V4L2_CAP_STREAMING;
 587         return 0;
 588 }
 589
 590 static int solo_enum_ext_input(struct solo6010_dev *solo_dev,
 591                                struct v4l2_input *input)
 592 {
 593         static const char *dispnames_1[] = { "4UP" };
 594         static const char *dispnames_2[] = { "4UP-1", "4UP-2" };
 595         static const char *dispnames_5[] = {
 596                 "4UP-1", "4UP-2", "4UP-3", "4UP-4", "16UP"
 597         };
 598         const char **dispnames;
 599
 600         if (input->index >= (solo_dev->nr_chans + solo_dev->nr_ext))
 601                 return -EINVAL;
 602
 603         if (solo_dev->nr_ext == 5)
 604                 dispnames = dispnames_5;
 605         else if (solo_dev->nr_ext == 2)
 606                 dispnames = dispnames_2;
 607         else
 608                 dispnames = dispnames_1;
 609
 610         snprintf(input->name, sizeof(input->name), "Multi %s",
 611                  dispnames[input->index - solo_dev->nr_chans]);
 612
 613         return 0;
 614 }
 615
 616 static int solo_enum_input(struct file *file, void *priv,
 617                            struct v4l2_input *input)
 618 {
 619         struct solo_filehandle *fh  = priv;
 620         struct solo6010_dev *solo_dev = fh->solo_dev;
 621
 622         if (input->index >= solo_dev->nr_chans) {
 623                 int ret = solo_enum_ext_input(solo_dev, input);
 624                 if (ret < 0)
 625                         return ret;
 626         } else {
 627                 snprintf(input->name, sizeof(input->name), "Camera %d",
 628                          input->index + 1);
 629
 630                 /* We can only check this for normal inputs */
 631                 if (!tw28_get_video_status(solo_dev, input->index))
 632                         input->status = V4L2_IN_ST_NO_SIGNAL;
 633         }
 634
 635         input->type = V4L2_INPUT_TYPE_CAMERA;
 636
 637         if (solo_dev->video_type == SOLO_VO_FMT_TYPE_NTSC)
 638                 input->std = V4L2_STD_NTSC_M;
 639         else
 640                 input->std = V4L2_STD_PAL_B;
 641
 642         return 0;
 643 }
 644
 645 static int solo_set_input(struct file *file, void *priv, unsigned int index)
 646 {
 647         struct solo_filehandle *fh = priv;
 648
 649         return solo_v4l2_set_ch(fh->solo_dev, index);
 650 }
 651
 652 static int solo_get_input(struct file *file, void *priv, unsigned int *index)
 653 {
 654         struct solo_filehandle *fh = priv;
 655
 656         *index = fh->solo_dev->cur_disp_ch;
 657
 658         return 0;
 659 }
 660
 661 static int solo_enum_fmt_cap(struct file *file, void *priv,
 662                              struct v4l2_fmtdesc *f)
 663 {
 664         if (f->index)
 665                 return -EINVAL;
 666
 667         f->pixelformat = V4L2_PIX_FMT_UYVY;
 668         strlcpy(f->description, "UYUV 4:2:2 Packed", sizeof(f->description));
 669
 670         return 0;
 671 }
 672
 673 static int solo_try_fmt_cap(struct file *file, void *priv,
 674                             struct v4l2_format *f)
 675 {
 676         struct solo_filehandle *fh = priv;
 677         struct solo6010_dev *solo_dev = fh->solo_dev;
 678         struct v4l2_pix_format *pix = &f->fmt.pix;
 679         int image_size = solo_image_size(solo_dev);
 680
 681         /* Check supported sizes */
 682         if (pix->width != solo_dev->video_hsize)
 683                 pix->width = solo_dev->video_hsize;
 684         if (pix->height != solo_vlines(solo_dev))
 685                 pix->height = solo_vlines(solo_dev);
 686         if (pix->sizeimage != image_size)
 687                 pix->sizeimage = image_size;
 688
 689         /* Check formats */
 690         if (pix->field == V4L2_FIELD_ANY)
 691                 pix->field = SOLO_DISP_PIX_FIELD;
 692
 693         if (pix->pixelformat != V4L2_PIX_FMT_UYVY ||
 694             pix->field       != SOLO_DISP_PIX_FIELD ||
 695             pix->colorspace  != V4L2_COLORSPACE_SMPTE170M)
 696                 return -EINVAL;
 697
 698         return 0;
 699 }
 700
 701 static int solo_set_fmt_cap(struct file *file, void *priv,
 702                             struct v4l2_format *f)
 703 {
 704         struct solo_filehandle *fh = priv;
 705
 706         if (videobuf_queue_is_busy(&fh->vidq))
 707                 return -EBUSY;
 708
 709         /* For right now, if it doesn't match our running config,
 710          * then fail */
 711         return solo_try_fmt_cap(file, priv, f);
 712 }
 713
 714 static int solo_get_fmt_cap(struct file *file, void *priv,
 715                             struct v4l2_format *f)
 716 {
 717         struct solo_filehandle *fh = priv;
 718         struct solo6010_dev *solo_dev = fh->solo_dev;
 719         struct v4l2_pix_format *pix = &f->fmt.pix;
 720
 721         pix->width = solo_dev->video_hsize;
 722         pix->height = solo_vlines(solo_dev);
 723         pix->pixelformat = V4L2_PIX_FMT_UYVY;
 724         pix->field = SOLO_DISP_PIX_FIELD;
 725         pix->sizeimage = solo_image_size(solo_dev);
 726         pix->colorspace = V4L2_COLORSPACE_SMPTE170M;
 727         pix->bytesperline = solo_bytesperline(solo_dev);
 728
 729         return 0;
 730 }
 731
 732 static int solo_reqbufs(struct file *file, void *priv,
 733                         struct v4l2_requestbuffers *req)
 734 {
 735         struct solo_filehandle *fh = priv;
 736
 737         return videobuf_reqbufs(&fh->vidq, req);
 738 }
 739
 740 static int solo_querybuf(struct file *file, void *priv, struct v4l2_buffer *buf)
 741 {
 742         struct solo_filehandle *fh = priv;
 743
 744         return videobuf_querybuf(&fh->vidq, buf);
 745 }
 746
 747 static int solo_qbuf(struct file *file, void *priv, struct v4l2_buffer *buf)
 748 {
 749         struct solo_filehandle *fh = priv;
 750
 751         return videobuf_qbuf(&fh->vidq, buf);
 752 }
 753
 754 static int solo_dqbuf(struct file *file, void *priv, struct v4l2_buffer *buf)
 755 {
 756         struct solo_filehandle *fh = priv;
 757
 758         return videobuf_dqbuf(&fh->vidq, buf, file->f_flags & O_NONBLOCK);
 759 }
 760
 761 static int solo_streamon(struct file *file, void *priv, enum v4l2_buf_type i)
 762 {
 763         struct solo_filehandle *fh = priv;
 764
 765         if (i != V4L2_BUF_TYPE_VIDEO_CAPTURE)
 766                 return -EINVAL;
 767
 768         return videobuf_streamon(&fh->vidq);
 769 }
 770
 771 static int solo_streamoff(struct file *file, void *priv, enum v4l2_buf_type i)
 772 {
 773         struct solo_filehandle *fh = priv;
 774
 775         if (i != V4L2_BUF_TYPE_VIDEO_CAPTURE)
 776                 return -EINVAL;
 777
 778         return videobuf_streamoff(&fh->vidq);
 779 }
 780
 781 static int solo_s_std(struct file *file, void *priv, v4l2_std_id *i)
 782 {
 783         return 0;
 784 }
 785
 786 static const u32 solo_motion_ctrls[] = {
 787         V4L2_CID_MOTION_TRACE,
 788         0
 789 };
 790
 791 static const u32 *solo_ctrl_classes[] = {
 792         solo_motion_ctrls,
 793         NULL
 794 };
 795
 796 static int solo_disp_queryctrl(struct file *file, void *priv,
 797                                struct v4l2_queryctrl *qc)
 798 {
 799         qc->id = v4l2_ctrl_next(solo_ctrl_classes, qc->id);
 800         if (!qc->id)
 801                 return -EINVAL;
 802
 803         switch (qc->id) {
 804 #ifdef PRIVATE_CIDS
 805         case V4L2_CID_MOTION_TRACE:
 806                 qc->type = V4L2_CTRL_TYPE_BOOLEAN;
 807                 qc->minimum = 0;
 808                 qc->maximum = qc->step = 1;
 809                 qc->default_value = 0;
 810                 strlcpy(qc->name, "Motion Detection Trace", sizeof(qc->name));
 811                 return 0;
 812 #else
 813         case V4L2_CID_MOTION_TRACE:
 814                 return v4l2_ctrl_query_fill(qc, 0, 1, 1, 0);
 815 #endif
 816         }
 817         return -EINVAL;
 818 }
 819
 820 static int solo_disp_g_ctrl(struct file *file, void *priv,
 821                             struct v4l2_control *ctrl)
 822 {
 823         struct solo_filehandle *fh = priv;
 824         struct solo6010_dev *solo_dev = fh->solo_dev;
 825
 826         switch (ctrl->id) {
 827         case V4L2_CID_MOTION_TRACE:
 828                 ctrl->value = solo_reg_read(solo_dev, SOLO_VI_MOTION_BAR)
 829                         ? 1 : 0;
 830                 return 0;
 831         }
 832         return -EINVAL;
 833 }
 834
 835 static int solo_disp_s_ctrl(struct file *file, void *priv,
 836                             struct v4l2_control *ctrl)
 837 {
 838         struct solo_filehandle *fh = priv;
 839         struct solo6010_dev *solo_dev = fh->solo_dev;
 840
 841         switch (ctrl->id) {
 842         case V4L2_CID_MOTION_TRACE:
 843                 if (ctrl->value) {
 844                         solo_reg_write(solo_dev, SOLO_VI_MOTION_BORDER,
 845                                         SOLO_VI_MOTION_Y_ADD |
 846                                         SOLO_VI_MOTION_Y_VALUE(0x20) |
 847                                         SOLO_VI_MOTION_CB_VALUE(0x10) |
 848                                         SOLO_VI_MOTION_CR_VALUE(0x10));
 849                         solo_reg_write(solo_dev, SOLO_VI_MOTION_BAR,
 850                                         SOLO_VI_MOTION_CR_ADD |
 851                                         SOLO_VI_MOTION_Y_VALUE(0x10) |
 852                                         SOLO_VI_MOTION_CB_VALUE(0x80) |
 853                                         SOLO_VI_MOTION_CR_VALUE(0x10));
 854                 } else {
 855                         solo_reg_write(solo_dev, SOLO_VI_MOTION_BORDER, 0);
 856                         solo_reg_write(solo_dev, SOLO_VI_MOTION_BAR, 0);
 857                 }
 858                 return 0;
 859         }
 860         return -EINVAL;
 861 }
 862
 863 static const struct v4l2_file_operations solo_v4l2_fops = {
 864         .owner                  = THIS_MODULE,
 865         .open                   = solo_v4l2_open,
 866         .release                = solo_v4l2_release,
 867         .read                   = solo_v4l2_read,
 868         .poll                   = solo_v4l2_poll,
 869         .mmap                   = solo_v4l2_mmap,
 870         .ioctl                  = video_ioctl2,
 871 };
 872
 873 static const struct v4l2_ioctl_ops solo_v4l2_ioctl_ops = {
 874         .vidioc_querycap                = solo_querycap,
 875         .vidioc_s_std                   = solo_s_std,
 876         /* Input callbacks */
 877         .vidioc_enum_input              = solo_enum_input,
 878         .vidioc_s_input                 = solo_set_input,
 879         .vidioc_g_input                 = solo_get_input,
 880         /* Video capture format callbacks */
 881         .vidioc_enum_fmt_vid_cap        = solo_enum_fmt_cap,
 882         .vidioc_try_fmt_vid_cap         = solo_try_fmt_cap,
 883         .vidioc_s_fmt_vid_cap           = solo_set_fmt_cap,
 884         .vidioc_g_fmt_vid_cap           = solo_get_fmt_cap,
 885         /* Streaming I/O */
 886         .vidioc_reqbufs                 = solo_reqbufs,
 887         .vidioc_querybuf                = solo_querybuf,
 888         .vidioc_qbuf                    = solo_qbuf,
 889         .vidioc_dqbuf                   = solo_dqbuf,
 890         .vidioc_streamon                = solo_streamon,
 891         .vidioc_streamoff               = solo_streamoff,
 892         /* Controls */
 893         .vidioc_queryctrl               = solo_disp_queryctrl,
 894         .vidioc_g_ctrl                  = solo_disp_g_ctrl,
 895         .vidioc_s_ctrl                  = solo_disp_s_ctrl,
 896 };
 897
 898 static struct video_device solo_v4l2_template = {
 899         .name                   = SOLO6010_NAME,
 900         .fops                   = &solo_v4l2_fops,
 901         .ioctl_ops              = &solo_v4l2_ioctl_ops,
 902         .minor                  = -1,
 903         .release                = video_device_release,
 904
 905         .tvnorms                = V4L2_STD_NTSC_M | V4L2_STD_PAL_B,
 906         .current_norm           = V4L2_STD_NTSC_M,
 907 };
 908
 909 int solo_v4l2_init(struct solo6010_dev *solo_dev)
 910 {
 911         int ret;
 912         int i;
 913
 914         init_waitqueue_head(&solo_dev->disp_thread_wait);
 915
 916         solo_dev->vfd = video_device_alloc();
 917         if (!solo_dev->vfd)
 918                 return -ENOMEM;
 919
 920         *solo_dev->vfd = solo_v4l2_template;
 921         solo_dev->vfd->parent = &solo_dev->pdev->dev;
 922
 923         ret = video_register_device(solo_dev->vfd, VFL_TYPE_GRABBER, video_nr);
 924         if (ret < 0) {
 925                 video_device_release(solo_dev->vfd);
 926                 solo_dev->vfd = NULL;
 927                 return ret;
 928         }
 929
 930         video_set_drvdata(solo_dev->vfd, solo_dev);
 931
 932         snprintf(solo_dev->vfd->name, sizeof(solo_dev->vfd->name), "%s (%i)",
 933                  SOLO6010_NAME, solo_dev->vfd->num);
 934
 935         if (video_nr != -1)
 936                 video_nr++;
 937
 938         dev_info(&solo_dev->pdev->dev, "Display as /dev/video%d with "
 939                  "%d inputs (%d extended)\n", solo_dev->vfd->num,
 940                  solo_dev->nr_chans, solo_dev->nr_ext);
 941
 942         /* Cycle all the channels and clear */
 943         for (i = 0; i < solo_dev->nr_chans; i++) {
 944                 solo_v4l2_set_ch(solo_dev, i);
 945                 while (erase_off(solo_dev))
 946                         ;/* Do nothing */
 947         }
 948
 949         /* Set the default display channel */
 950         solo_v4l2_set_ch(solo_dev, 0);
 951         while (erase_off(solo_dev))
 952                 ;/* Do nothing */
 953
 954         solo6010_irq_on(solo_dev, SOLO_IRQ_VIDEO_IN);
 955
 956         return 0;
 957 }
 958
 959 void solo_v4l2_exit(struct solo6010_dev *solo_dev)
 960 {
 961         solo6010_irq_off(solo_dev, SOLO_IRQ_VIDEO_IN);
 962         if (solo_dev->vfd) {
 963                 video_unregister_device(solo_dev->vfd);
 964                 solo_dev->vfd = NULL;
 965         }
 966 }