drivers/media/pci/cobalt/cobalt-v4l2.c

   1 // SPDX-License-Identifier: GPL-2.0-only
   2 /*
   3  *  cobalt V4L2 API
   4  *
   5  *  Derived from ivtv-ioctl.c and cx18-fileops.c
   6  *
   7  *  Copyright 2012-2015 Cisco Systems, Inc. and/or its affiliates.
   8  *  All rights reserved.
   9  */
  10
  11 #include <linux/dma-mapping.h>
  12 #include <linux/delay.h>
  13 #include <linux/math64.h>
  14 #include <linux/pci.h>
  15 #include <linux/v4l2-dv-timings.h>
  16
  17 #include <media/v4l2-ctrls.h>
  18 #include <media/v4l2-event.h>
  19 #include <media/v4l2-dv-timings.h>
  20 #include <media/i2c/adv7604.h>
  21 #include <media/i2c/adv7842.h>
  22
  23 #include "cobalt-alsa.h"
  24 #include "cobalt-cpld.h"
  25 #include "cobalt-driver.h"
  26 #include "cobalt-v4l2.h"
  27 #include "cobalt-irq.h"
  28 #include "cobalt-omnitek.h"
  29
  30 static const struct v4l2_dv_timings cea1080p60 = V4L2_DV_BT_CEA_1920X1080P60;
  31
  32 /* vb2 DMA streaming ops */
  33
  34 static int cobalt_queue_setup(struct vb2_queue *q,
  35                         unsigned int *num_buffers, unsigned int *num_planes,
  36                         unsigned int sizes[], struct device *alloc_devs[])
  37 {
  38         struct cobalt_stream *s = q->drv_priv;
  39         unsigned size = s->stride * s->height;
  40
  41         if (*num_buffers < 3)
  42                 *num_buffers = 3;
  43         if (*num_buffers > NR_BUFS)
  44                 *num_buffers = NR_BUFS;
  45         if (*num_planes)
  46                 return sizes[0] < size ? -EINVAL : 0;
  47         *num_planes = 1;
  48         sizes[0] = size;
  49         return 0;
  50 }
  51
  52 static int cobalt_buf_init(struct vb2_buffer *vb)
  53 {
  54         struct cobalt_stream *s = vb->vb2_queue->drv_priv;
  55         struct cobalt *cobalt = s->cobalt;
  56         const size_t max_pages_per_line =
  57                 (COBALT_MAX_WIDTH * COBALT_MAX_BPP) / PAGE_SIZE + 2;
  58         const size_t bytes =
  59                 COBALT_MAX_HEIGHT * max_pages_per_line * 0x20;
  60         const size_t audio_bytes = ((1920 * 4) / PAGE_SIZE + 1) * 0x20;
  61         struct sg_dma_desc_info *desc = &s->dma_desc_info[vb->index];
  62         struct sg_table *sg_desc = vb2_dma_sg_plane_desc(vb, 0);
  63         unsigned size;
  64         int ret;
  65
  66         size = s->stride * s->height;
  67         if (vb2_plane_size(vb, 0) < size) {
  68                 cobalt_info("data will not fit into plane (%lu < %u)\n",
  69                                         vb2_plane_size(vb, 0), size);
  70                 return -EINVAL;
  71         }
  72
  73         if (desc->virt == NULL) {
  74                 desc->dev = &cobalt->pci_dev->dev;
  75                 descriptor_list_allocate(desc,
  76                         s->is_audio ? audio_bytes : bytes);
  77                 if (desc->virt == NULL)
  78                         return -ENOMEM;
  79         }
  80         ret = descriptor_list_create(cobalt, sg_desc->sgl,
  81                         !s->is_output, sg_desc->nents, size,
  82                         s->width * s->bpp, s->stride, desc);
  83         if (ret)
  84                 descriptor_list_free(desc);
  85         return ret;
  86 }
  87
  88 static void cobalt_buf_cleanup(struct vb2_buffer *vb)
  89 {
  90         struct cobalt_stream *s = vb->vb2_queue->drv_priv;
  91         struct sg_dma_desc_info *desc = &s->dma_desc_info[vb->index];
  92
  93         descriptor_list_free(desc);
  94 }
  95
  96 static int cobalt_buf_prepare(struct vb2_buffer *vb)
  97 {
  98         struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
  99         struct cobalt_stream *s = vb->vb2_queue->drv_priv;
 100
 101         vb2_set_plane_payload(vb, 0, s->stride * s->height);
 102         vbuf->field = V4L2_FIELD_NONE;
 103         return 0;
 104 }
 105
 106 static void chain_all_buffers(struct cobalt_stream *s)
 107 {
 108         struct sg_dma_desc_info *desc[NR_BUFS];
 109         struct cobalt_buffer *cb;
 110         int i = 0;
 111
 112         list_for_each_entry(cb, &s->bufs, list) {
 113                 desc[i] = &s->dma_desc_info[cb->vb.vb2_buf.index];
 114                 if (i > 0)
 115                         descriptor_list_chain(desc[i-1], desc[i]);
 116                 i++;
 117         }
 118 }
 119
 120 static void cobalt_buf_queue(struct vb2_buffer *vb)
 121 {
 122         struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
 123         struct vb2_queue *q = vb->vb2_queue;
 124         struct cobalt_stream *s = q->drv_priv;
 125         struct cobalt_buffer *cb = to_cobalt_buffer(vbuf);
 126         struct sg_dma_desc_info *desc = &s->dma_desc_info[vb->index];
 127         unsigned long flags;
 128
 129         /* Prepare new buffer */
 130         descriptor_list_loopback(desc);
 131         descriptor_list_interrupt_disable(desc);
 132
 133         spin_lock_irqsave(&s->irqlock, flags);
 134         list_add_tail(&cb->list, &s->bufs);
 135         chain_all_buffers(s);
 136         spin_unlock_irqrestore(&s->irqlock, flags);
 137 }
 138
 139 static void cobalt_enable_output(struct cobalt_stream *s)
 140 {
 141         struct cobalt *cobalt = s->cobalt;
 142         struct v4l2_bt_timings *bt = &s->timings.bt;
 143         struct m00514_syncgen_flow_evcnt_regmap __iomem *vo =
 144                 COBALT_TX_BASE(cobalt);
 145         unsigned fmt = s->pixfmt != V4L2_PIX_FMT_BGR32 ?
 146                         M00514_CONTROL_BITMAP_FORMAT_16_BPP_MSK : 0;
 147         struct v4l2_subdev_format sd_fmt = {
 148                 .which = V4L2_SUBDEV_FORMAT_ACTIVE,
 149         };
 150         u64 clk = bt->pixelclock;
 151
 152         if (bt->flags & V4L2_DV_FL_REDUCED_FPS)
 153                 clk = div_u64(clk * 1000ULL, 1001);
 154         if (!cobalt_cpld_set_freq(cobalt, clk)) {
 155                 cobalt_err("pixelclock out of range\n");
 156                 return;
 157         }
 158
 159         sd_fmt.format.colorspace = s->colorspace;
 160         sd_fmt.format.xfer_func = s->xfer_func;
 161         sd_fmt.format.ycbcr_enc = s->ycbcr_enc;
 162         sd_fmt.format.quantization = s->quantization;
 163         sd_fmt.format.width = bt->width;
 164         sd_fmt.format.height = bt->height;
 165
 166         /* Set up FDMA packer */
 167         switch (s->pixfmt) {
 168         case V4L2_PIX_FMT_YUYV:
 169                 sd_fmt.format.code = MEDIA_BUS_FMT_UYVY8_1X16;
 170                 break;
 171         case V4L2_PIX_FMT_BGR32:
 172                 sd_fmt.format.code = MEDIA_BUS_FMT_RGB888_1X24;
 173                 break;
 174         }
 175         v4l2_subdev_call(s->sd, pad, set_fmt, NULL, &sd_fmt);
 176
 177         iowrite32(0, &vo->control);
 178         /* 1080p60 */
 179         iowrite32(bt->hsync, &vo->sync_generator_h_sync_length);
 180         iowrite32(bt->hbackporch, &vo->sync_generator_h_backporch_length);
 181         iowrite32(bt->width, &vo->sync_generator_h_active_length);
 182         iowrite32(bt->hfrontporch, &vo->sync_generator_h_frontporch_length);
 183         iowrite32(bt->vsync, &vo->sync_generator_v_sync_length);
 184         iowrite32(bt->vbackporch, &vo->sync_generator_v_backporch_length);
 185         iowrite32(bt->height, &vo->sync_generator_v_active_length);
 186         iowrite32(bt->vfrontporch, &vo->sync_generator_v_frontporch_length);
 187         iowrite32(0x9900c1, &vo->error_color);
 188
 189         iowrite32(M00514_CONTROL_BITMAP_SYNC_GENERATOR_LOAD_PARAM_MSK | fmt,
 190                   &vo->control);
 191         iowrite32(M00514_CONTROL_BITMAP_EVCNT_CLEAR_MSK | fmt, &vo->control);
 192         iowrite32(M00514_CONTROL_BITMAP_SYNC_GENERATOR_ENABLE_MSK |
 193                   M00514_CONTROL_BITMAP_FLOW_CTRL_OUTPUT_ENABLE_MSK |
 194                   fmt, &vo->control);
 195 }
 196
 197 static void cobalt_enable_input(struct cobalt_stream *s)
 198 {
 199         struct cobalt *cobalt = s->cobalt;
 200         int ch = (int)s->video_channel;
 201         struct m00235_fdma_packer_regmap __iomem *packer;
 202         struct v4l2_subdev_format sd_fmt_yuyv = {
 203                 .pad = s->pad_source,
 204                 .which = V4L2_SUBDEV_FORMAT_ACTIVE,
 205                 .format.code = MEDIA_BUS_FMT_YUYV8_1X16,
 206         };
 207         struct v4l2_subdev_format sd_fmt_rgb = {
 208                 .pad = s->pad_source,
 209                 .which = V4L2_SUBDEV_FORMAT_ACTIVE,
 210                 .format.code = MEDIA_BUS_FMT_RGB888_1X24,
 211         };
 212
 213         cobalt_dbg(1, "video_channel %d (%s, %s)\n",
 214                    s->video_channel,
 215                    s->input == 0 ? "hdmi" : "generator",
 216                    "YUYV");
 217
 218         packer = COBALT_CVI_PACKER(cobalt, ch);
 219
 220         /* Set up FDMA packer */
 221         switch (s->pixfmt) {
 222         case V4L2_PIX_FMT_YUYV:
 223                 iowrite32(M00235_CONTROL_BITMAP_ENABLE_MSK |
 224                           (1 << M00235_CONTROL_BITMAP_PACK_FORMAT_OFST),
 225                           &packer->control);
 226                 v4l2_subdev_call(s->sd, pad, set_fmt, NULL,
 227                                  &sd_fmt_yuyv);
 228                 break;
 229         case V4L2_PIX_FMT_RGB24:
 230                 iowrite32(M00235_CONTROL_BITMAP_ENABLE_MSK |
 231                           (2 << M00235_CONTROL_BITMAP_PACK_FORMAT_OFST),
 232                           &packer->control);
 233                 v4l2_subdev_call(s->sd, pad, set_fmt, NULL,
 234                                  &sd_fmt_rgb);
 235                 break;
 236         case V4L2_PIX_FMT_BGR32:
 237                 iowrite32(M00235_CONTROL_BITMAP_ENABLE_MSK |
 238                           M00235_CONTROL_BITMAP_ENDIAN_FORMAT_MSK |
 239                           (3 << M00235_CONTROL_BITMAP_PACK_FORMAT_OFST),
 240                           &packer->control);
 241                 v4l2_subdev_call(s->sd, pad, set_fmt, NULL,
 242                                  &sd_fmt_rgb);
 243                 break;
 244         }
 245 }
 246
 247 static void cobalt_dma_start_streaming(struct cobalt_stream *s)
 248 {
 249         struct cobalt *cobalt = s->cobalt;
 250         int rx = s->video_channel;
 251         struct m00460_evcnt_regmap __iomem *evcnt =
 252                 COBALT_CVI_EVCNT(cobalt, rx);
 253         struct cobalt_buffer *cb;
 254         unsigned long flags;
 255
 256         spin_lock_irqsave(&s->irqlock, flags);
 257         if (!s->is_output) {
 258                 iowrite32(M00460_CONTROL_BITMAP_CLEAR_MSK, &evcnt->control);
 259                 iowrite32(M00460_CONTROL_BITMAP_ENABLE_MSK, &evcnt->control);
 260         } else {
 261                 struct m00514_syncgen_flow_evcnt_regmap __iomem *vo =
 262                         COBALT_TX_BASE(cobalt);
 263                 u32 ctrl = ioread32(&vo->control);
 264
 265                 ctrl &= ~(M00514_CONTROL_BITMAP_EVCNT_ENABLE_MSK |
 266                           M00514_CONTROL_BITMAP_EVCNT_CLEAR_MSK);
 267                 iowrite32(ctrl | M00514_CONTROL_BITMAP_EVCNT_CLEAR_MSK,
 268                           &vo->control);
 269                 iowrite32(ctrl | M00514_CONTROL_BITMAP_EVCNT_ENABLE_MSK,
 270                           &vo->control);
 271         }
 272         cb = list_first_entry(&s->bufs, struct cobalt_buffer, list);
 273         omni_sg_dma_start(s, &s->dma_desc_info[cb->vb.vb2_buf.index]);
 274         spin_unlock_irqrestore(&s->irqlock, flags);
 275 }
 276
 277 static int cobalt_start_streaming(struct vb2_queue *q, unsigned int count)
 278 {
 279         struct cobalt_stream *s = q->drv_priv;
 280         struct cobalt *cobalt = s->cobalt;
 281         struct m00233_video_measure_regmap __iomem *vmr;
 282         struct m00473_freewheel_regmap __iomem *fw;
 283         struct m00479_clk_loss_detector_regmap __iomem *clkloss;
 284         int rx = s->video_channel;
 285         struct m00389_cvi_regmap __iomem *cvi = COBALT_CVI(cobalt, rx);
 286         struct m00460_evcnt_regmap __iomem *evcnt = COBALT_CVI_EVCNT(cobalt, rx);
 287         struct v4l2_bt_timings *bt = &s->timings.bt;
 288         u64 tot_size;
 289         u32 clk_freq;
 290
 291         if (s->is_audio)
 292                 goto done;
 293         if (s->is_output) {
 294                 s->unstable_frame = false;
 295                 cobalt_enable_output(s);
 296                 goto done;
 297         }
 298
 299         cobalt_enable_input(s);
 300
 301         fw = COBALT_CVI_FREEWHEEL(cobalt, rx);
 302         vmr = COBALT_CVI_VMR(cobalt, rx);
 303         clkloss = COBALT_CVI_CLK_LOSS(cobalt, rx);
 304
 305         iowrite32(M00460_CONTROL_BITMAP_CLEAR_MSK, &evcnt->control);
 306         iowrite32(M00460_CONTROL_BITMAP_ENABLE_MSK, &evcnt->control);
 307         iowrite32(bt->width, &cvi->frame_width);
 308         iowrite32(bt->height, &cvi->frame_height);
 309         tot_size = V4L2_DV_BT_FRAME_WIDTH(bt) * V4L2_DV_BT_FRAME_HEIGHT(bt);
 310         iowrite32(div_u64((u64)V4L2_DV_BT_FRAME_WIDTH(bt) * COBALT_CLK * 4,
 311                           bt->pixelclock), &vmr->hsync_timeout_val);
 312         iowrite32(M00233_CONTROL_BITMAP_ENABLE_MEASURE_MSK, &vmr->control);
 313         clk_freq = ioread32(&fw->clk_freq);
 314         iowrite32(clk_freq / 1000000, &clkloss->ref_clk_cnt_val);
 315         /* The lower bound for the clock frequency is 0.5% lower as is
 316          * allowed by the spec */
 317         iowrite32(div_u64(bt->pixelclock * 995, 1000000000),
 318                   &clkloss->test_clk_cnt_val);
 319         /* will be enabled after the first frame has been received */
 320         iowrite32(bt->width * bt->height, &fw->active_length);
 321         iowrite32(div_u64((u64)clk_freq * tot_size, bt->pixelclock),
 322                   &fw->total_length);
 323         iowrite32(M00233_IRQ_TRIGGERS_BITMAP_VACTIVE_AREA_MSK |
 324                   M00233_IRQ_TRIGGERS_BITMAP_HACTIVE_AREA_MSK,
 325                   &vmr->irq_triggers);
 326         iowrite32(0, &cvi->control);
 327         iowrite32(M00233_CONTROL_BITMAP_ENABLE_MEASURE_MSK, &vmr->control);
 328
 329         iowrite32(0xff, &fw->output_color);
 330         iowrite32(M00479_CTRL_BITMAP_ENABLE_MSK, &clkloss->ctrl);
 331         iowrite32(M00473_CTRL_BITMAP_ENABLE_MSK |
 332                   M00473_CTRL_BITMAP_FORCE_FREEWHEEL_MODE_MSK, &fw->ctrl);
 333         s->unstable_frame = true;
 334         s->enable_freewheel = false;
 335         s->enable_cvi = false;
 336         s->skip_first_frames = 0;
 337
 338 done:
 339         s->sequence = 0;
 340         cobalt_dma_start_streaming(s);
 341         return 0;
 342 }
 343
 344 static void cobalt_dma_stop_streaming(struct cobalt_stream *s)
 345 {
 346         struct cobalt *cobalt = s->cobalt;
 347         struct sg_dma_desc_info *desc;
 348         struct cobalt_buffer *cb;
 349         unsigned long flags;
 350         int timeout_msec = 100;
 351         int rx = s->video_channel;
 352         struct m00460_evcnt_regmap __iomem *evcnt =
 353                 COBALT_CVI_EVCNT(cobalt, rx);
 354
 355         if (!s->is_output) {
 356                 iowrite32(0, &evcnt->control);
 357         } else if (!s->is_audio) {
 358                 struct m00514_syncgen_flow_evcnt_regmap __iomem *vo =
 359                         COBALT_TX_BASE(cobalt);
 360
 361                 iowrite32(M00514_CONTROL_BITMAP_EVCNT_CLEAR_MSK, &vo->control);
 362                 iowrite32(0, &vo->control);
 363         }
 364
 365         /* Try to stop the DMA engine gracefully */
 366         spin_lock_irqsave(&s->irqlock, flags);
 367         list_for_each_entry(cb, &s->bufs, list) {
 368                 desc = &s->dma_desc_info[cb->vb.vb2_buf.index];
 369                 /* Stop DMA after this descriptor chain */
 370                 descriptor_list_end_of_chain(desc);
 371         }
 372         spin_unlock_irqrestore(&s->irqlock, flags);
 373
 374         /* Wait 100 millisecond for DMA to finish, abort on timeout. */
 375         if (!wait_event_timeout(s->q.done_wq, is_dma_done(s),
 376                                 msecs_to_jiffies(timeout_msec))) {
 377                 omni_sg_dma_abort_channel(s);
 378                 pr_warn("aborted\n");
 379         }
 380         cobalt_write_bar0(cobalt, DMA_INTERRUPT_STATUS_REG,
 381                         1 << s->dma_channel);
 382 }
 383
 384 static void cobalt_stop_streaming(struct vb2_queue *q)
 385 {
 386         struct cobalt_stream *s = q->drv_priv;
 387         struct cobalt *cobalt = s->cobalt;
 388         int rx = s->video_channel;
 389         struct m00233_video_measure_regmap __iomem *vmr;
 390         struct m00473_freewheel_regmap __iomem *fw;
 391         struct m00479_clk_loss_detector_regmap __iomem *clkloss;
 392         struct cobalt_buffer *cb;
 393         struct list_head *p, *safe;
 394         unsigned long flags;
 395
 396         cobalt_dma_stop_streaming(s);
 397
 398         /* Return all buffers to user space */
 399         spin_lock_irqsave(&s->irqlock, flags);
 400         list_for_each_safe(p, safe, &s->bufs) {
 401                 cb = list_entry(p, struct cobalt_buffer, list);
 402                 list_del(&cb->list);
 403                 vb2_buffer_done(&cb->vb.vb2_buf, VB2_BUF_STATE_ERROR);
 404         }
 405         spin_unlock_irqrestore(&s->irqlock, flags);
 406
 407         if (s->is_audio || s->is_output)
 408                 return;
 409
 410         fw = COBALT_CVI_FREEWHEEL(cobalt, rx);
 411         vmr = COBALT_CVI_VMR(cobalt, rx);
 412         clkloss = COBALT_CVI_CLK_LOSS(cobalt, rx);
 413         iowrite32(0, &vmr->control);
 414         iowrite32(M00233_CONTROL_BITMAP_ENABLE_MEASURE_MSK, &vmr->control);
 415         iowrite32(0, &fw->ctrl);
 416         iowrite32(0, &clkloss->ctrl);
 417 }
 418
 419 static const struct vb2_ops cobalt_qops = {
 420         .queue_setup = cobalt_queue_setup,
 421         .buf_init = cobalt_buf_init,
 422         .buf_cleanup = cobalt_buf_cleanup,
 423         .buf_prepare = cobalt_buf_prepare,
 424         .buf_queue = cobalt_buf_queue,
 425         .start_streaming = cobalt_start_streaming,
 426         .stop_streaming = cobalt_stop_streaming,
 427 };
 428
 429 /* V4L2 ioctls */
 430
 431 #ifdef CONFIG_VIDEO_ADV_DEBUG
 432 static int cobalt_cobaltc(struct cobalt *cobalt, unsigned int cmd, void *arg)
 433 {
 434         struct v4l2_dbg_register *regs = arg;
 435         void __iomem *adrs = cobalt->bar1 + regs->reg;
 436
 437         cobalt_info("cobalt_cobaltc: adrs = %p\n", adrs);
 438
 439         if (!capable(CAP_SYS_ADMIN))
 440                 return -EPERM;
 441
 442         regs->size = 4;
 443         if (cmd == VIDIOC_DBG_S_REGISTER)
 444                 iowrite32(regs->val, adrs);
 445         else
 446                 regs->val = ioread32(adrs);
 447         return 0;
 448 }
 449
 450 static int cobalt_g_register(struct file *file, void *priv_fh,
 451                 struct v4l2_dbg_register *reg)
 452 {
 453         struct cobalt_stream *s = video_drvdata(file);
 454         struct cobalt *cobalt = s->cobalt;
 455
 456         return cobalt_cobaltc(cobalt, VIDIOC_DBG_G_REGISTER, reg);
 457 }
 458
 459 static int cobalt_s_register(struct file *file, void *priv_fh,
 460                 const struct v4l2_dbg_register *reg)
 461 {
 462         struct cobalt_stream *s = video_drvdata(file);
 463         struct cobalt *cobalt = s->cobalt;
 464
 465         return cobalt_cobaltc(cobalt, VIDIOC_DBG_S_REGISTER,
 466                         (struct v4l2_dbg_register *)reg);
 467 }
 468 #endif
 469
 470 static int cobalt_querycap(struct file *file, void *priv_fh,
 471                                 struct v4l2_capability *vcap)
 472 {
 473         struct cobalt_stream *s = video_drvdata(file);
 474         struct cobalt *cobalt = s->cobalt;
 475
 476         strscpy(vcap->driver, "cobalt", sizeof(vcap->driver));
 477         strscpy(vcap->card, "cobalt", sizeof(vcap->card));
 478         snprintf(vcap->bus_info, sizeof(vcap->bus_info),
 479                  "PCIe:%s", pci_name(cobalt->pci_dev));
 480         vcap->capabilities = V4L2_CAP_STREAMING | V4L2_CAP_READWRITE |
 481                 V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_DEVICE_CAPS;
 482         if (cobalt->have_hsma_tx)
 483                 vcap->capabilities |= V4L2_CAP_VIDEO_OUTPUT;
 484         return 0;
 485 }
 486
 487 static void cobalt_video_input_status_show(struct cobalt_stream *s)
 488 {
 489         struct m00389_cvi_regmap __iomem *cvi;
 490         struct m00233_video_measure_regmap __iomem *vmr;
 491         struct m00473_freewheel_regmap __iomem *fw;
 492         struct m00479_clk_loss_detector_regmap __iomem *clkloss;
 493         struct m00235_fdma_packer_regmap __iomem *packer;
 494         int rx = s->video_channel;
 495         struct cobalt *cobalt = s->cobalt;
 496         u32 cvi_ctrl, cvi_stat;
 497         u32 vmr_ctrl, vmr_stat;
 498
 499         cvi = COBALT_CVI(cobalt, rx);
 500         vmr = COBALT_CVI_VMR(cobalt, rx);
 501         fw = COBALT_CVI_FREEWHEEL(cobalt, rx);
 502         clkloss = COBALT_CVI_CLK_LOSS(cobalt, rx);
 503         packer = COBALT_CVI_PACKER(cobalt, rx);
 504         cvi_ctrl = ioread32(&cvi->control);
 505         cvi_stat = ioread32(&cvi->status);
 506         vmr_ctrl = ioread32(&vmr->control);
 507         vmr_stat = ioread32(&vmr->status);
 508         cobalt_info("rx%d: cvi resolution: %dx%d\n", rx,
 509                     ioread32(&cvi->frame_width), ioread32(&cvi->frame_height));
 510         cobalt_info("rx%d: cvi control: %s%s%s\n", rx,
 511                 (cvi_ctrl & M00389_CONTROL_BITMAP_ENABLE_MSK) ?
 512                         "enable " : "disable ",
 513                 (cvi_ctrl & M00389_CONTROL_BITMAP_HSYNC_POLARITY_LOW_MSK) ?
 514                         "HSync- " : "HSync+ ",
 515                 (cvi_ctrl & M00389_CONTROL_BITMAP_VSYNC_POLARITY_LOW_MSK) ?
 516                         "VSync- " : "VSync+ ");
 517         cobalt_info("rx%d: cvi status: %s%s\n", rx,
 518                 (cvi_stat & M00389_STATUS_BITMAP_LOCK_MSK) ?
 519                         "lock " : "no-lock ",
 520                 (cvi_stat & M00389_STATUS_BITMAP_ERROR_MSK) ?
 521                         "error " : "no-error ");
 522
 523         cobalt_info("rx%d: Measurements: %s%s%s%s%s%s%s\n", rx,
 524                 (vmr_ctrl & M00233_CONTROL_BITMAP_HSYNC_POLARITY_LOW_MSK) ?
 525                         "HSync- " : "HSync+ ",
 526                 (vmr_ctrl & M00233_CONTROL_BITMAP_VSYNC_POLARITY_LOW_MSK) ?
 527                         "VSync- " : "VSync+ ",
 528                 (vmr_ctrl & M00233_CONTROL_BITMAP_ENABLE_MEASURE_MSK) ?
 529                         "enabled " : "disabled ",
 530                 (vmr_ctrl & M00233_CONTROL_BITMAP_ENABLE_INTERRUPT_MSK) ?
 531                         "irq-enabled " : "irq-disabled ",
 532                 (vmr_ctrl & M00233_CONTROL_BITMAP_UPDATE_ON_HSYNC_MSK) ?
 533                         "update-on-hsync " : "",
 534                 (vmr_stat & M00233_STATUS_BITMAP_HSYNC_TIMEOUT_MSK) ?
 535                         "hsync-timeout " : "",
 536                 (vmr_stat & M00233_STATUS_BITMAP_INIT_DONE_MSK) ?
 537                         "init-done" : "");
 538         cobalt_info("rx%d: irq_status: 0x%02x irq_triggers: 0x%02x\n", rx,
 539                         ioread32(&vmr->irq_status) & 0xff,
 540                         ioread32(&vmr->irq_triggers) & 0xff);
 541         cobalt_info("rx%d: vsync: %d\n", rx, ioread32(&vmr->vsync_time));
 542         cobalt_info("rx%d: vbp: %d\n", rx, ioread32(&vmr->vback_porch));
 543         cobalt_info("rx%d: vact: %d\n", rx, ioread32(&vmr->vactive_area));
 544         cobalt_info("rx%d: vfb: %d\n", rx, ioread32(&vmr->vfront_porch));
 545         cobalt_info("rx%d: hsync: %d\n", rx, ioread32(&vmr->hsync_time));
 546         cobalt_info("rx%d: hbp: %d\n", rx, ioread32(&vmr->hback_porch));
 547         cobalt_info("rx%d: hact: %d\n", rx, ioread32(&vmr->hactive_area));
 548         cobalt_info("rx%d: hfb: %d\n", rx, ioread32(&vmr->hfront_porch));
 549         cobalt_info("rx%d: Freewheeling: %s%s%s\n", rx,
 550                 (ioread32(&fw->ctrl) & M00473_CTRL_BITMAP_ENABLE_MSK) ?
 551                         "enabled " : "disabled ",
 552                 (ioread32(&fw->ctrl) & M00473_CTRL_BITMAP_FORCE_FREEWHEEL_MODE_MSK) ?
 553                         "forced " : "",
 554                 (ioread32(&fw->status) & M00473_STATUS_BITMAP_FREEWHEEL_MODE_MSK) ?
 555                         "freewheeling " : "video-passthrough ");
 556         iowrite32(0xff, &vmr->irq_status);
 557         cobalt_info("rx%d: Clock Loss Detection: %s%s\n", rx,
 558                 (ioread32(&clkloss->ctrl) & M00479_CTRL_BITMAP_ENABLE_MSK) ?
 559                         "enabled " : "disabled ",
 560                 (ioread32(&clkloss->status) & M00479_STATUS_BITMAP_CLOCK_MISSING_MSK) ?
 561                         "clock-missing " : "found-clock ");
 562         cobalt_info("rx%d: Packer: %x\n", rx, ioread32(&packer->control));
 563 }
 564
 565 static int cobalt_log_status(struct file *file, void *priv_fh)
 566 {
 567         struct cobalt_stream *s = video_drvdata(file);
 568         struct cobalt *cobalt = s->cobalt;
 569         struct m00514_syncgen_flow_evcnt_regmap __iomem *vo =
 570                 COBALT_TX_BASE(cobalt);
 571         u8 stat;
 572
 573         cobalt_info("%s", cobalt->hdl_info);
 574         cobalt_info("sysctrl: %08x, sysstat: %08x\n",
 575                         cobalt_g_sysctrl(cobalt),
 576                         cobalt_g_sysstat(cobalt));
 577         cobalt_info("dma channel: %d, video channel: %d\n",
 578                         s->dma_channel, s->video_channel);
 579         cobalt_pcie_status_show(cobalt);
 580         cobalt_cpld_status(cobalt);
 581         cobalt_irq_log_status(cobalt);
 582         v4l2_subdev_call(s->sd, core, log_status);
 583         if (!s->is_output) {
 584                 cobalt_video_input_status_show(s);
 585                 return 0;
 586         }
 587
 588         stat = ioread32(&vo->rd_status);
 589
 590         cobalt_info("tx: status: %s%s\n",
 591                 (stat & M00514_RD_STATUS_BITMAP_FLOW_CTRL_NO_DATA_ERROR_MSK) ?
 592                         "no_data " : "",
 593                 (stat & M00514_RD_STATUS_BITMAP_READY_BUFFER_FULL_MSK) ?
 594                         "ready_buffer_full " : "");
 595         cobalt_info("tx: evcnt: %d\n", ioread32(&vo->rd_evcnt_count));
 596         return 0;
 597 }
 598
 599 static int cobalt_enum_dv_timings(struct file *file, void *priv_fh,
 600                                     struct v4l2_enum_dv_timings *timings)
 601 {
 602         struct cobalt_stream *s = video_drvdata(file);
 603
 604         if (s->input == 1) {
 605                 if (timings->index)
 606                         return -EINVAL;
 607                 memset(timings->reserved, 0, sizeof(timings->reserved));
 608                 timings->timings = cea1080p60;
 609                 return 0;
 610         }
 611         timings->pad = 0;
 612         return v4l2_subdev_call(s->sd,
 613                         pad, enum_dv_timings, timings);
 614 }
 615
 616 static int cobalt_s_dv_timings(struct file *file, void *priv_fh,
 617                                     struct v4l2_dv_timings *timings)
 618 {
 619         struct cobalt_stream *s = video_drvdata(file);
 620         int err;
 621
 622         if (s->input == 1) {
 623                 *timings = cea1080p60;
 624                 return 0;
 625         }
 626
 627         if (v4l2_match_dv_timings(timings, &s->timings, 0, true))
 628                 return 0;
 629
 630         if (vb2_is_busy(&s->q))
 631                 return -EBUSY;
 632
 633         err = v4l2_subdev_call(s->sd,
 634                         pad, s_dv_timings, 0, timings);
 635         if (!err) {
 636                 s->timings = *timings;
 637                 s->width = timings->bt.width;
 638                 s->height = timings->bt.height;
 639                 s->stride = timings->bt.width * s->bpp;
 640         }
 641         return err;
 642 }
 643
 644 static int cobalt_g_dv_timings(struct file *file, void *priv_fh,
 645                                     struct v4l2_dv_timings *timings)
 646 {
 647         struct cobalt_stream *s = video_drvdata(file);
 648
 649         if (s->input == 1) {
 650                 *timings = cea1080p60;
 651                 return 0;
 652         }
 653         return v4l2_subdev_call(s->sd,
 654                         pad, g_dv_timings, 0, timings);
 655 }
 656
 657 static int cobalt_query_dv_timings(struct file *file, void *priv_fh,
 658                                     struct v4l2_dv_timings *timings)
 659 {
 660         struct cobalt_stream *s = video_drvdata(file);
 661
 662         if (s->input == 1) {
 663                 *timings = cea1080p60;
 664                 return 0;
 665         }
 666         return v4l2_subdev_call(s->sd,
 667                         pad, query_dv_timings, 0, timings);
 668 }
 669
 670 static int cobalt_dv_timings_cap(struct file *file, void *priv_fh,
 671                                     struct v4l2_dv_timings_cap *cap)
 672 {
 673         struct cobalt_stream *s = video_drvdata(file);
 674
 675         cap->pad = 0;
 676         return v4l2_subdev_call(s->sd,
 677                         pad, dv_timings_cap, cap);
 678 }
 679
 680 static int cobalt_enum_fmt_vid_cap(struct file *file, void *priv_fh,
 681                 struct v4l2_fmtdesc *f)
 682 {
 683         switch (f->index) {
 684         case 0:
 685                 f->pixelformat = V4L2_PIX_FMT_YUYV;
 686                 break;
 687         case 1:
 688                 f->pixelformat = V4L2_PIX_FMT_RGB24;
 689                 break;
 690         case 2:
 691                 f->pixelformat = V4L2_PIX_FMT_BGR32;
 692                 break;
 693         default:
 694                 return -EINVAL;
 695         }
 696
 697         return 0;
 698 }
 699
 700 static int cobalt_g_fmt_vid_cap(struct file *file, void *priv_fh,
 701                 struct v4l2_format *f)
 702 {
 703         struct cobalt_stream *s = video_drvdata(file);
 704         struct v4l2_pix_format *pix = &f->fmt.pix;
 705
 706         pix->width = s->width;
 707         pix->height = s->height;
 708         pix->bytesperline = s->stride;
 709         pix->field = V4L2_FIELD_NONE;
 710
 711         if (s->input == 1) {
 712                 pix->colorspace = V4L2_COLORSPACE_SRGB;
 713         } else {
 714                 struct v4l2_subdev_format sd_fmt = {
 715                         .pad = s->pad_source,
 716                         .which = V4L2_SUBDEV_FORMAT_ACTIVE,
 717                 };
 718
 719                 v4l2_subdev_call(s->sd, pad, get_fmt, NULL, &sd_fmt);
 720                 v4l2_fill_pix_format(pix, &sd_fmt.format);
 721         }
 722
 723         pix->pixelformat = s->pixfmt;
 724         pix->sizeimage = pix->bytesperline * pix->height;
 725
 726         return 0;
 727 }
 728
 729 static int cobalt_try_fmt_vid_cap(struct file *file, void *priv_fh,
 730                 struct v4l2_format *f)
 731 {
 732         struct cobalt_stream *s = video_drvdata(file);
 733         struct v4l2_pix_format *pix = &f->fmt.pix;
 734
 735         /* Check for min (QCIF) and max (Full HD) size */
 736         if ((pix->width < 176) || (pix->height < 144)) {
 737                 pix->width = 176;
 738                 pix->height = 144;
 739         }
 740
 741         if ((pix->width > 1920) || (pix->height > 1080)) {
 742                 pix->width = 1920;
 743                 pix->height = 1080;
 744         }
 745
 746         /* Make width multiple of 4 */
 747         pix->width &= ~0x3;
 748
 749         /* Make height multiple of 2 */
 750         pix->height &= ~0x1;
 751
 752         if (s->input == 1) {
 753                 /* Generator => fixed format only */
 754                 pix->width = 1920;
 755                 pix->height = 1080;
 756                 pix->colorspace = V4L2_COLORSPACE_SRGB;
 757         } else {
 758                 struct v4l2_subdev_format sd_fmt = {
 759                         .pad = s->pad_source,
 760                         .which = V4L2_SUBDEV_FORMAT_ACTIVE,
 761                 };
 762
 763                 v4l2_subdev_call(s->sd, pad, get_fmt, NULL, &sd_fmt);
 764                 v4l2_fill_pix_format(pix, &sd_fmt.format);
 765         }
 766
 767         switch (pix->pixelformat) {
 768         case V4L2_PIX_FMT_YUYV:
 769         default:
 770                 pix->bytesperline = max(pix->bytesperline & ~0x3,
 771                                 pix->width * COBALT_BYTES_PER_PIXEL_YUYV);
 772                 pix->pixelformat = V4L2_PIX_FMT_YUYV;
 773                 break;
 774         case V4L2_PIX_FMT_RGB24:
 775                 pix->bytesperline = max(pix->bytesperline & ~0x3,
 776                                 pix->width * COBALT_BYTES_PER_PIXEL_RGB24);
 777                 break;
 778         case V4L2_PIX_FMT_BGR32:
 779                 pix->bytesperline = max(pix->bytesperline & ~0x3,
 780                                 pix->width * COBALT_BYTES_PER_PIXEL_RGB32);
 781                 break;
 782         }
 783
 784         pix->sizeimage = pix->bytesperline * pix->height;
 785         pix->field = V4L2_FIELD_NONE;
 786
 787         return 0;
 788 }
 789
 790 static int cobalt_s_fmt_vid_cap(struct file *file, void *priv_fh,
 791                 struct v4l2_format *f)
 792 {
 793         struct cobalt_stream *s = video_drvdata(file);
 794         struct v4l2_pix_format *pix = &f->fmt.pix;
 795
 796         if (vb2_is_busy(&s->q))
 797                 return -EBUSY;
 798
 799         if (cobalt_try_fmt_vid_cap(file, priv_fh, f))
 800                 return -EINVAL;
 801
 802         s->width = pix->width;
 803         s->height = pix->height;
 804         s->stride = pix->bytesperline;
 805         switch (pix->pixelformat) {
 806         case V4L2_PIX_FMT_YUYV:
 807                 s->bpp = COBALT_BYTES_PER_PIXEL_YUYV;
 808                 break;
 809         case V4L2_PIX_FMT_RGB24:
 810                 s->bpp = COBALT_BYTES_PER_PIXEL_RGB24;
 811                 break;
 812         case V4L2_PIX_FMT_BGR32:
 813                 s->bpp = COBALT_BYTES_PER_PIXEL_RGB32;
 814                 break;
 815         default:
 816                 return -EINVAL;
 817         }
 818         s->pixfmt = pix->pixelformat;
 819         cobalt_enable_input(s);
 820
 821         return 0;
 822 }
 823
 824 static int cobalt_try_fmt_vid_out(struct file *file, void *priv_fh,
 825                 struct v4l2_format *f)
 826 {
 827         struct v4l2_pix_format *pix = &f->fmt.pix;
 828
 829         /* Check for min (QCIF) and max (Full HD) size */
 830         if ((pix->width < 176) || (pix->height < 144)) {
 831                 pix->width = 176;
 832                 pix->height = 144;
 833         }
 834
 835         if ((pix->width > 1920) || (pix->height > 1080)) {
 836                 pix->width = 1920;
 837                 pix->height = 1080;
 838         }
 839
 840         /* Make width multiple of 4 */
 841         pix->width &= ~0x3;
 842
 843         /* Make height multiple of 2 */
 844         pix->height &= ~0x1;
 845
 846         switch (pix->pixelformat) {
 847         case V4L2_PIX_FMT_YUYV:
 848         default:
 849                 pix->bytesperline = max(pix->bytesperline & ~0x3,
 850                                 pix->width * COBALT_BYTES_PER_PIXEL_YUYV);
 851                 pix->pixelformat = V4L2_PIX_FMT_YUYV;
 852                 break;
 853         case V4L2_PIX_FMT_BGR32:
 854                 pix->bytesperline = max(pix->bytesperline & ~0x3,
 855                                 pix->width * COBALT_BYTES_PER_PIXEL_RGB32);
 856                 break;
 857         }
 858
 859         pix->sizeimage = pix->bytesperline * pix->height;
 860         pix->field = V4L2_FIELD_NONE;
 861
 862         return 0;
 863 }
 864
 865 static int cobalt_g_fmt_vid_out(struct file *file, void *priv_fh,
 866                 struct v4l2_format *f)
 867 {
 868         struct cobalt_stream *s = video_drvdata(file);
 869         struct v4l2_pix_format *pix = &f->fmt.pix;
 870
 871         pix->width = s->width;
 872         pix->height = s->height;
 873         pix->bytesperline = s->stride;
 874         pix->field = V4L2_FIELD_NONE;
 875         pix->pixelformat = s->pixfmt;
 876         pix->colorspace = s->colorspace;
 877         pix->xfer_func = s->xfer_func;
 878         pix->ycbcr_enc = s->ycbcr_enc;
 879         pix->quantization = s->quantization;
 880         pix->sizeimage = pix->bytesperline * pix->height;
 881
 882         return 0;
 883 }
 884
 885 static int cobalt_enum_fmt_vid_out(struct file *file, void *priv_fh,
 886                 struct v4l2_fmtdesc *f)
 887 {
 888         switch (f->index) {
 889         case 0:
 890                 f->pixelformat = V4L2_PIX_FMT_YUYV;
 891                 break;
 892         case 1:
 893                 f->pixelformat = V4L2_PIX_FMT_BGR32;
 894                 break;
 895         default:
 896                 return -EINVAL;
 897         }
 898
 899         return 0;
 900 }
 901
 902 static int cobalt_s_fmt_vid_out(struct file *file, void *priv_fh,
 903                 struct v4l2_format *f)
 904 {
 905         struct cobalt_stream *s = video_drvdata(file);
 906         struct v4l2_pix_format *pix = &f->fmt.pix;
 907         struct v4l2_subdev_format sd_fmt = {
 908                 .which = V4L2_SUBDEV_FORMAT_ACTIVE,
 909         };
 910         u32 code;
 911
 912         if (cobalt_try_fmt_vid_out(file, priv_fh, f))
 913                 return -EINVAL;
 914
 915         if (vb2_is_busy(&s->q) && (pix->pixelformat != s->pixfmt ||
 916             pix->width != s->width || pix->height != s->height ||
 917             pix->bytesperline != s->stride))
 918                 return -EBUSY;
 919
 920         switch (pix->pixelformat) {
 921         case V4L2_PIX_FMT_YUYV:
 922                 s->bpp = COBALT_BYTES_PER_PIXEL_YUYV;
 923                 code = MEDIA_BUS_FMT_UYVY8_1X16;
 924                 break;
 925         case V4L2_PIX_FMT_BGR32:
 926                 s->bpp = COBALT_BYTES_PER_PIXEL_RGB32;
 927                 code = MEDIA_BUS_FMT_RGB888_1X24;
 928                 break;
 929         default:
 930                 return -EINVAL;
 931         }
 932         s->width = pix->width;
 933         s->height = pix->height;
 934         s->stride = pix->bytesperline;
 935         s->pixfmt = pix->pixelformat;
 936         s->colorspace = pix->colorspace;
 937         s->xfer_func = pix->xfer_func;
 938         s->ycbcr_enc = pix->ycbcr_enc;
 939         s->quantization = pix->quantization;
 940         v4l2_fill_mbus_format(&sd_fmt.format, pix, code);
 941         v4l2_subdev_call(s->sd, pad, set_fmt, NULL, &sd_fmt);
 942         return 0;
 943 }
 944
 945 static int cobalt_enum_input(struct file *file, void *priv_fh,
 946                                  struct v4l2_input *inp)
 947 {
 948         struct cobalt_stream *s = video_drvdata(file);
 949
 950         if (inp->index > 1)
 951                 return -EINVAL;
 952         if (inp->index == 0)
 953                 snprintf(inp->name, sizeof(inp->name),
 954                                 "HDMI-%d", s->video_channel);
 955         else
 956                 snprintf(inp->name, sizeof(inp->name),
 957                                 "Generator-%d", s->video_channel);
 958         inp->type = V4L2_INPUT_TYPE_CAMERA;
 959         inp->capabilities = V4L2_IN_CAP_DV_TIMINGS;
 960         if (inp->index == 1)
 961                 return 0;
 962         return v4l2_subdev_call(s->sd,
 963                         video, g_input_status, &inp->status);
 964 }
 965
 966 static int cobalt_g_input(struct file *file, void *priv_fh, unsigned int *i)
 967 {
 968         struct cobalt_stream *s = video_drvdata(file);
 969
 970         *i = s->input;
 971         return 0;
 972 }
 973
 974 static int cobalt_s_input(struct file *file, void *priv_fh, unsigned int i)
 975 {
 976         struct cobalt_stream *s = video_drvdata(file);
 977
 978         if (i >= 2)
 979                 return -EINVAL;
 980         if (vb2_is_busy(&s->q))
 981                 return -EBUSY;
 982         s->input = i;
 983
 984         cobalt_enable_input(s);
 985
 986         if (s->input == 1) /* Test Pattern Generator */
 987                 return 0;
 988
 989         return v4l2_subdev_call(s->sd, video, s_routing,
 990                         ADV76XX_PAD_HDMI_PORT_A, 0, 0);
 991 }
 992
 993 static int cobalt_enum_output(struct file *file, void *priv_fh,
 994                                  struct v4l2_output *out)
 995 {
 996         if (out->index)
 997                 return -EINVAL;
 998         snprintf(out->name, sizeof(out->name), "HDMI-%d", out->index);
 999         out->type = V4L2_OUTPUT_TYPE_ANALOG;
1000         out->capabilities = V4L2_OUT_CAP_DV_TIMINGS;
1001         return 0;
1002 }
1003
1004 static int cobalt_g_output(struct file *file, void *priv_fh, unsigned int *i)
1005 {
1006         *i = 0;
1007         return 0;
1008 }
1009
1010 static int cobalt_s_output(struct file *file, void *priv_fh, unsigned int i)
1011 {
1012         return i ? -EINVAL : 0;
1013 }
1014
1015 static int cobalt_g_edid(struct file *file, void *fh, struct v4l2_edid *edid)
1016 {
1017         struct cobalt_stream *s = video_drvdata(file);
1018         u32 pad = edid->pad;
1019         int ret;
1020
1021         if (edid->pad >= (s->is_output ? 1 : 2))
1022                 return -EINVAL;
1023         edid->pad = 0;
1024         ret = v4l2_subdev_call(s->sd, pad, get_edid, edid);
1025         edid->pad = pad;
1026         return ret;
1027 }
1028
1029 static int cobalt_s_edid(struct file *file, void *fh, struct v4l2_edid *edid)
1030 {
1031         struct cobalt_stream *s = video_drvdata(file);
1032         u32 pad = edid->pad;
1033         int ret;
1034
1035         if (edid->pad >= 2)
1036                 return -EINVAL;
1037         edid->pad = 0;
1038         ret = v4l2_subdev_call(s->sd, pad, set_edid, edid);
1039         edid->pad = pad;
1040         return ret;
1041 }
1042
1043 static int cobalt_subscribe_event(struct v4l2_fh *fh,
1044                                   const struct v4l2_event_subscription *sub)
1045 {
1046         switch (sub->type) {
1047         case V4L2_EVENT_SOURCE_CHANGE:
1048                 return v4l2_event_subscribe(fh, sub, 4, NULL);
1049         }
1050         return v4l2_ctrl_subscribe_event(fh, sub);
1051 }
1052
1053 static int cobalt_g_parm(struct file *file, void *fh, struct v4l2_streamparm *a)
1054 {
1055         struct cobalt_stream *s = video_drvdata(file);
1056         struct v4l2_fract fps;
1057
1058         if (a->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
1059                 return -EINVAL;
1060
1061         fps = v4l2_calc_timeperframe(&s->timings);
1062         a->parm.capture.timeperframe.numerator = fps.numerator;
1063         a->parm.capture.timeperframe.denominator = fps.denominator;
1064         a->parm.capture.readbuffers = 3;
1065         return 0;
1066 }
1067
1068 static int cobalt_g_pixelaspect(struct file *file, void *fh,
1069                                 int type, struct v4l2_fract *f)
1070 {
1071         struct cobalt_stream *s = video_drvdata(file);
1072         struct v4l2_dv_timings timings;
1073         int err = 0;
1074
1075         if (type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
1076                 return -EINVAL;
1077
1078         if (s->input == 1)
1079                 timings = cea1080p60;
1080         else
1081                 err = v4l2_subdev_call(s->sd, pad, g_dv_timings, 0, &timings);
1082         if (!err)
1083                 *f = v4l2_dv_timings_aspect_ratio(&timings);
1084         return err;
1085 }
1086
1087 static int cobalt_g_selection(struct file *file, void *fh,
1088                               struct v4l2_selection *sel)
1089 {
1090         struct cobalt_stream *s = video_drvdata(file);
1091         struct v4l2_dv_timings timings;
1092         int err = 0;
1093
1094         if (sel->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
1095                 return -EINVAL;
1096
1097         if (s->input == 1)
1098                 timings = cea1080p60;
1099         else
1100                 err = v4l2_subdev_call(s->sd, pad, g_dv_timings, 0, &timings);
1101
1102         if (err)
1103                 return err;
1104
1105         switch (sel->target) {
1106         case V4L2_SEL_TGT_CROP_BOUNDS:
1107         case V4L2_SEL_TGT_CROP_DEFAULT:
1108                 sel->r.top = 0;
1109                 sel->r.left = 0;
1110                 sel->r.width = timings.bt.width;
1111                 sel->r.height = timings.bt.height;
1112                 break;
1113         default:
1114                 return -EINVAL;
1115         }
1116         return 0;
1117 }
1118
1119 static const struct v4l2_ioctl_ops cobalt_ioctl_ops = {
1120         .vidioc_querycap                = cobalt_querycap,
1121         .vidioc_g_parm                  = cobalt_g_parm,
1122         .vidioc_log_status              = cobalt_log_status,
1123         .vidioc_streamon                = vb2_ioctl_streamon,
1124         .vidioc_streamoff               = vb2_ioctl_streamoff,
1125         .vidioc_g_pixelaspect           = cobalt_g_pixelaspect,
1126         .vidioc_g_selection             = cobalt_g_selection,
1127         .vidioc_enum_input              = cobalt_enum_input,
1128         .vidioc_g_input                 = cobalt_g_input,
1129         .vidioc_s_input                 = cobalt_s_input,
1130         .vidioc_enum_fmt_vid_cap        = cobalt_enum_fmt_vid_cap,
1131         .vidioc_g_fmt_vid_cap           = cobalt_g_fmt_vid_cap,
1132         .vidioc_s_fmt_vid_cap           = cobalt_s_fmt_vid_cap,
1133         .vidioc_try_fmt_vid_cap         = cobalt_try_fmt_vid_cap,
1134         .vidioc_enum_output             = cobalt_enum_output,
1135         .vidioc_g_output                = cobalt_g_output,
1136         .vidioc_s_output                = cobalt_s_output,
1137         .vidioc_enum_fmt_vid_out        = cobalt_enum_fmt_vid_out,
1138         .vidioc_g_fmt_vid_out           = cobalt_g_fmt_vid_out,
1139         .vidioc_s_fmt_vid_out           = cobalt_s_fmt_vid_out,
1140         .vidioc_try_fmt_vid_out         = cobalt_try_fmt_vid_out,
1141         .vidioc_s_dv_timings            = cobalt_s_dv_timings,
1142         .vidioc_g_dv_timings            = cobalt_g_dv_timings,
1143         .vidioc_query_dv_timings        = cobalt_query_dv_timings,
1144         .vidioc_enum_dv_timings         = cobalt_enum_dv_timings,
1145         .vidioc_dv_timings_cap          = cobalt_dv_timings_cap,
1146         .vidioc_g_edid                  = cobalt_g_edid,
1147         .vidioc_s_edid                  = cobalt_s_edid,
1148         .vidioc_subscribe_event         = cobalt_subscribe_event,
1149         .vidioc_unsubscribe_event       = v4l2_event_unsubscribe,
1150         .vidioc_reqbufs                 = vb2_ioctl_reqbufs,
1151         .vidioc_create_bufs             = vb2_ioctl_create_bufs,
1152         .vidioc_querybuf                = vb2_ioctl_querybuf,
1153         .vidioc_qbuf                    = vb2_ioctl_qbuf,
1154         .vidioc_dqbuf                   = vb2_ioctl_dqbuf,
1155         .vidioc_expbuf                  = vb2_ioctl_expbuf,
1156 #ifdef CONFIG_VIDEO_ADV_DEBUG
1157         .vidioc_g_register              = cobalt_g_register,
1158         .vidioc_s_register              = cobalt_s_register,
1159 #endif
1160 };
1161
1162 static const struct v4l2_ioctl_ops cobalt_ioctl_empty_ops = {
1163 #ifdef CONFIG_VIDEO_ADV_DEBUG
1164         .vidioc_g_register              = cobalt_g_register,
1165         .vidioc_s_register              = cobalt_s_register,
1166 #endif
1167 };
1168
1169 /* Register device nodes */
1170
1171 static const struct v4l2_file_operations cobalt_fops = {
1172         .owner = THIS_MODULE,
1173         .open = v4l2_fh_open,
1174         .unlocked_ioctl = video_ioctl2,
1175         .release = vb2_fop_release,
1176         .poll = vb2_fop_poll,
1177         .mmap = vb2_fop_mmap,
1178         .read = vb2_fop_read,
1179 };
1180
1181 static const struct v4l2_file_operations cobalt_out_fops = {
1182         .owner = THIS_MODULE,
1183         .open = v4l2_fh_open,
1184         .unlocked_ioctl = video_ioctl2,
1185         .release = vb2_fop_release,
1186         .poll = vb2_fop_poll,
1187         .mmap = vb2_fop_mmap,
1188         .write = vb2_fop_write,
1189 };
1190
1191 static const struct v4l2_file_operations cobalt_empty_fops = {
1192         .owner = THIS_MODULE,
1193         .open = v4l2_fh_open,
1194         .unlocked_ioctl = video_ioctl2,
1195         .release = v4l2_fh_release,
1196 };
1197
1198 static int cobalt_node_register(struct cobalt *cobalt, int node)
1199 {
1200         static const struct v4l2_dv_timings dv1080p60 =
1201                 V4L2_DV_BT_CEA_1920X1080P60;
1202         struct cobalt_stream *s = cobalt->streams + node;
1203         struct video_device *vdev = &s->vdev;
1204         struct vb2_queue *q = &s->q;
1205         int ret;
1206
1207         mutex_init(&s->lock);
1208         spin_lock_init(&s->irqlock);
1209
1210         snprintf(vdev->name, sizeof(vdev->name),
1211                         "%s-%d", cobalt->v4l2_dev.name, node);
1212         s->width = 1920;
1213         /* Audio frames are just 4 lines of 1920 bytes */
1214         s->height = s->is_audio ? 4 : 1080;
1215
1216         if (s->is_audio) {
1217                 s->bpp = 1;
1218                 s->pixfmt = V4L2_PIX_FMT_GREY;
1219         } else if (s->is_output) {
1220                 s->bpp = COBALT_BYTES_PER_PIXEL_RGB32;
1221                 s->pixfmt = V4L2_PIX_FMT_BGR32;
1222         } else {
1223                 s->bpp = COBALT_BYTES_PER_PIXEL_YUYV;
1224                 s->pixfmt = V4L2_PIX_FMT_YUYV;
1225         }
1226         s->colorspace = V4L2_COLORSPACE_SRGB;
1227         s->stride = s->width * s->bpp;
1228
1229         if (!s->is_audio) {
1230                 if (s->is_dummy)
1231                         cobalt_warn("Setting up dummy video node %d\n", node);
1232                 vdev->v4l2_dev = &cobalt->v4l2_dev;
1233                 if (s->is_dummy)
1234                         vdev->fops = &cobalt_empty_fops;
1235                 else
1236                         vdev->fops = s->is_output ? &cobalt_out_fops :
1237                                                     &cobalt_fops;
1238                 vdev->release = video_device_release_empty;
1239                 vdev->vfl_dir = s->is_output ? VFL_DIR_TX : VFL_DIR_RX;
1240                 vdev->lock = &s->lock;
1241                 if (s->sd)
1242                         vdev->ctrl_handler = s->sd->ctrl_handler;
1243                 s->timings = dv1080p60;
1244                 v4l2_subdev_call(s->sd, pad, s_dv_timings, 0, &s->timings);
1245                 if (!s->is_output && s->sd)
1246                         cobalt_enable_input(s);
1247                 vdev->ioctl_ops = s->is_dummy ? &cobalt_ioctl_empty_ops :
1248                                   &cobalt_ioctl_ops;
1249         }
1250
1251         INIT_LIST_HEAD(&s->bufs);
1252         q->type = s->is_output ? V4L2_BUF_TYPE_VIDEO_OUTPUT :
1253                                  V4L2_BUF_TYPE_VIDEO_CAPTURE;
1254         q->io_modes = VB2_MMAP | VB2_USERPTR | VB2_DMABUF;
1255         q->io_modes |= s->is_output ? VB2_WRITE : VB2_READ;
1256         q->drv_priv = s;
1257         q->buf_struct_size = sizeof(struct cobalt_buffer);
1258         q->ops = &cobalt_qops;
1259         q->mem_ops = &vb2_dma_sg_memops;
1260         q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;
1261         q->min_queued_buffers = 2;
1262         q->lock = &s->lock;
1263         q->dev = &cobalt->pci_dev->dev;
1264         vdev->queue = q;
1265         vdev->device_caps = V4L2_CAP_STREAMING | V4L2_CAP_READWRITE;
1266         if (s->is_output)
1267                 vdev->device_caps |= V4L2_CAP_VIDEO_OUTPUT;
1268         else
1269                 vdev->device_caps |= V4L2_CAP_VIDEO_CAPTURE;
1270
1271         video_set_drvdata(vdev, s);
1272         ret = vb2_queue_init(q);
1273         if (!s->is_audio && ret == 0)
1274                 ret = video_register_device(vdev, VFL_TYPE_VIDEO, -1);
1275         else if (!s->is_dummy)
1276                 ret = cobalt_alsa_init(s);
1277
1278         if (ret < 0) {
1279                 if (!s->is_audio)
1280                         cobalt_err("couldn't register v4l2 device node %d\n",
1281                                         node);
1282                 return ret;
1283         }
1284         cobalt_info("registered node %d\n", node);
1285         return 0;
1286 }
1287
1288 /* Initialize v4l2 variables and register v4l2 devices */
1289 int cobalt_nodes_register(struct cobalt *cobalt)
1290 {
1291         int node, ret;
1292
1293         /* Setup V4L2 Devices */
1294         for (node = 0; node < COBALT_NUM_STREAMS; node++) {
1295                 ret = cobalt_node_register(cobalt, node);
1296                 if (ret)
1297                         return ret;
1298         }
1299         return 0;
1300 }
1301
1302 /* Unregister v4l2 devices */
1303 void cobalt_nodes_unregister(struct cobalt *cobalt)
1304 {
1305         int node;
1306
1307         /* Teardown all streams */
1308         for (node = 0; node < COBALT_NUM_STREAMS; node++) {
1309                 struct cobalt_stream *s = cobalt->streams + node;
1310                 struct video_device *vdev = &s->vdev;
1311
1312                 if (!s->is_audio)
1313                         video_unregister_device(vdev);
1314                 else if (!s->is_dummy)
1315                         cobalt_alsa_exit(s);
1316         }
1317 }