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         struct list_head *p;
 111         int i = 0;
 112
 113         list_for_each(p, &s->bufs) {
 114                 cb = list_entry(p, struct cobalt_buffer, list);
 115                 desc[i] = &s->dma_desc_info[cb->vb.vb2_buf.index];
 116                 if (i > 0)
 117                         descriptor_list_chain(desc[i-1], desc[i]);
 118                 i++;
 119         }
 120 }
 121
 122 static void cobalt_buf_queue(struct vb2_buffer *vb)
 123 {
 124         struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
 125         struct vb2_queue *q = vb->vb2_queue;
 126         struct cobalt_stream *s = q->drv_priv;
 127         struct cobalt_buffer *cb = to_cobalt_buffer(vbuf);
 128         struct sg_dma_desc_info *desc = &s->dma_desc_info[vb->index];
 129         unsigned long flags;
 130
 131         /* Prepare new buffer */
 132         descriptor_list_loopback(desc);
 133         descriptor_list_interrupt_disable(desc);
 134
 135         spin_lock_irqsave(&s->irqlock, flags);
 136         list_add_tail(&cb->list, &s->bufs);
 137         chain_all_buffers(s);
 138         spin_unlock_irqrestore(&s->irqlock, flags);
 139 }
 140
 141 static void cobalt_enable_output(struct cobalt_stream *s)
 142 {
 143         struct cobalt *cobalt = s->cobalt;
 144         struct v4l2_bt_timings *bt = &s->timings.bt;
 145         struct m00514_syncgen_flow_evcnt_regmap __iomem *vo =
 146                 COBALT_TX_BASE(cobalt);
 147         unsigned fmt = s->pixfmt != V4L2_PIX_FMT_BGR32 ?
 148                         M00514_CONTROL_BITMAP_FORMAT_16_BPP_MSK : 0;
 149         struct v4l2_subdev_format sd_fmt = {
 150                 .which = V4L2_SUBDEV_FORMAT_ACTIVE,
 151         };
 152         u64 clk = bt->pixelclock;
 153
 154         if (bt->flags & V4L2_DV_FL_REDUCED_FPS)
 155                 clk = div_u64(clk * 1000ULL, 1001);
 156         if (!cobalt_cpld_set_freq(cobalt, clk)) {
 157                 cobalt_err("pixelclock out of range\n");
 158                 return;
 159         }
 160
 161         sd_fmt.format.colorspace = s->colorspace;
 162         sd_fmt.format.xfer_func = s->xfer_func;
 163         sd_fmt.format.ycbcr_enc = s->ycbcr_enc;
 164         sd_fmt.format.quantization = s->quantization;
 165         sd_fmt.format.width = bt->width;
 166         sd_fmt.format.height = bt->height;
 167
 168         /* Set up FDMA packer */
 169         switch (s->pixfmt) {
 170         case V4L2_PIX_FMT_YUYV:
 171                 sd_fmt.format.code = MEDIA_BUS_FMT_UYVY8_1X16;
 172                 break;
 173         case V4L2_PIX_FMT_BGR32:
 174                 sd_fmt.format.code = MEDIA_BUS_FMT_RGB888_1X24;
 175                 break;
 176         }
 177         v4l2_subdev_call(s->sd, pad, set_fmt, NULL, &sd_fmt);
 178
 179         iowrite32(0, &vo->control);
 180         /* 1080p60 */
 181         iowrite32(bt->hsync, &vo->sync_generator_h_sync_length);
 182         iowrite32(bt->hbackporch, &vo->sync_generator_h_backporch_length);
 183         iowrite32(bt->width, &vo->sync_generator_h_active_length);
 184         iowrite32(bt->hfrontporch, &vo->sync_generator_h_frontporch_length);
 185         iowrite32(bt->vsync, &vo->sync_generator_v_sync_length);
 186         iowrite32(bt->vbackporch, &vo->sync_generator_v_backporch_length);
 187         iowrite32(bt->height, &vo->sync_generator_v_active_length);
 188         iowrite32(bt->vfrontporch, &vo->sync_generator_v_frontporch_length);
 189         iowrite32(0x9900c1, &vo->error_color);
 190
 191         iowrite32(M00514_CONTROL_BITMAP_SYNC_GENERATOR_LOAD_PARAM_MSK | fmt,
 192                   &vo->control);
 193         iowrite32(M00514_CONTROL_BITMAP_EVCNT_CLEAR_MSK | fmt, &vo->control);
 194         iowrite32(M00514_CONTROL_BITMAP_SYNC_GENERATOR_ENABLE_MSK |
 195                   M00514_CONTROL_BITMAP_FLOW_CTRL_OUTPUT_ENABLE_MSK |
 196                   fmt, &vo->control);
 197 }
 198
 199 static void cobalt_enable_input(struct cobalt_stream *s)
 200 {
 201         struct cobalt *cobalt = s->cobalt;
 202         int ch = (int)s->video_channel;
 203         struct m00235_fdma_packer_regmap __iomem *packer;
 204         struct v4l2_subdev_format sd_fmt_yuyv = {
 205                 .pad = s->pad_source,
 206                 .which = V4L2_SUBDEV_FORMAT_ACTIVE,
 207                 .format.code = MEDIA_BUS_FMT_YUYV8_1X16,
 208         };
 209         struct v4l2_subdev_format sd_fmt_rgb = {
 210                 .pad = s->pad_source,
 211                 .which = V4L2_SUBDEV_FORMAT_ACTIVE,
 212                 .format.code = MEDIA_BUS_FMT_RGB888_1X24,
 213         };
 214
 215         cobalt_dbg(1, "video_channel %d (%s, %s)\n",
 216                    s->video_channel,
 217                    s->input == 0 ? "hdmi" : "generator",
 218                    "YUYV");
 219
 220         packer = COBALT_CVI_PACKER(cobalt, ch);
 221
 222         /* Set up FDMA packer */
 223         switch (s->pixfmt) {
 224         case V4L2_PIX_FMT_YUYV:
 225                 iowrite32(M00235_CONTROL_BITMAP_ENABLE_MSK |
 226                           (1 << M00235_CONTROL_BITMAP_PACK_FORMAT_OFST),
 227                           &packer->control);
 228                 v4l2_subdev_call(s->sd, pad, set_fmt, NULL,
 229                                  &sd_fmt_yuyv);
 230                 break;
 231         case V4L2_PIX_FMT_RGB24:
 232                 iowrite32(M00235_CONTROL_BITMAP_ENABLE_MSK |
 233                           (2 << M00235_CONTROL_BITMAP_PACK_FORMAT_OFST),
 234                           &packer->control);
 235                 v4l2_subdev_call(s->sd, pad, set_fmt, NULL,
 236                                  &sd_fmt_rgb);
 237                 break;
 238         case V4L2_PIX_FMT_BGR32:
 239                 iowrite32(M00235_CONTROL_BITMAP_ENABLE_MSK |
 240                           M00235_CONTROL_BITMAP_ENDIAN_FORMAT_MSK |
 241                           (3 << M00235_CONTROL_BITMAP_PACK_FORMAT_OFST),
 242                           &packer->control);
 243                 v4l2_subdev_call(s->sd, pad, set_fmt, NULL,
 244                                  &sd_fmt_rgb);
 245                 break;
 246         }
 247 }
 248
 249 static void cobalt_dma_start_streaming(struct cobalt_stream *s)
 250 {
 251         struct cobalt *cobalt = s->cobalt;
 252         int rx = s->video_channel;
 253         struct m00460_evcnt_regmap __iomem *evcnt =
 254                 COBALT_CVI_EVCNT(cobalt, rx);
 255         struct cobalt_buffer *cb;
 256         unsigned long flags;
 257
 258         spin_lock_irqsave(&s->irqlock, flags);
 259         if (!s->is_output) {
 260                 iowrite32(M00460_CONTROL_BITMAP_CLEAR_MSK, &evcnt->control);
 261                 iowrite32(M00460_CONTROL_BITMAP_ENABLE_MSK, &evcnt->control);
 262         } else {
 263                 struct m00514_syncgen_flow_evcnt_regmap __iomem *vo =
 264                         COBALT_TX_BASE(cobalt);
 265                 u32 ctrl = ioread32(&vo->control);
 266
 267                 ctrl &= ~(M00514_CONTROL_BITMAP_EVCNT_ENABLE_MSK |
 268                           M00514_CONTROL_BITMAP_EVCNT_CLEAR_MSK);
 269                 iowrite32(ctrl | M00514_CONTROL_BITMAP_EVCNT_CLEAR_MSK,
 270                           &vo->control);
 271                 iowrite32(ctrl | M00514_CONTROL_BITMAP_EVCNT_ENABLE_MSK,
 272                           &vo->control);
 273         }
 274         cb = list_first_entry(&s->bufs, struct cobalt_buffer, list);
 275         omni_sg_dma_start(s, &s->dma_desc_info[cb->vb.vb2_buf.index]);
 276         spin_unlock_irqrestore(&s->irqlock, flags);
 277 }
 278
 279 static int cobalt_start_streaming(struct vb2_queue *q, unsigned int count)
 280 {
 281         struct cobalt_stream *s = q->drv_priv;
 282         struct cobalt *cobalt = s->cobalt;
 283         struct m00233_video_measure_regmap __iomem *vmr;
 284         struct m00473_freewheel_regmap __iomem *fw;
 285         struct m00479_clk_loss_detector_regmap __iomem *clkloss;
 286         int rx = s->video_channel;
 287         struct m00389_cvi_regmap __iomem *cvi = COBALT_CVI(cobalt, rx);
 288         struct m00460_evcnt_regmap __iomem *evcnt = COBALT_CVI_EVCNT(cobalt, rx);
 289         struct v4l2_bt_timings *bt = &s->timings.bt;
 290         u64 tot_size;
 291         u32 clk_freq;
 292
 293         if (s->is_audio)
 294                 goto done;
 295         if (s->is_output) {
 296                 s->unstable_frame = false;
 297                 cobalt_enable_output(s);
 298                 goto done;
 299         }
 300
 301         cobalt_enable_input(s);
 302
 303         fw = COBALT_CVI_FREEWHEEL(cobalt, rx);
 304         vmr = COBALT_CVI_VMR(cobalt, rx);
 305         clkloss = COBALT_CVI_CLK_LOSS(cobalt, rx);
 306
 307         iowrite32(M00460_CONTROL_BITMAP_CLEAR_MSK, &evcnt->control);
 308         iowrite32(M00460_CONTROL_BITMAP_ENABLE_MSK, &evcnt->control);
 309         iowrite32(bt->width, &cvi->frame_width);
 310         iowrite32(bt->height, &cvi->frame_height);
 311         tot_size = V4L2_DV_BT_FRAME_WIDTH(bt) * V4L2_DV_BT_FRAME_HEIGHT(bt);
 312         iowrite32(div_u64((u64)V4L2_DV_BT_FRAME_WIDTH(bt) * COBALT_CLK * 4,
 313                           bt->pixelclock), &vmr->hsync_timeout_val);
 314         iowrite32(M00233_CONTROL_BITMAP_ENABLE_MEASURE_MSK, &vmr->control);
 315         clk_freq = ioread32(&fw->clk_freq);
 316         iowrite32(clk_freq / 1000000, &clkloss->ref_clk_cnt_val);
 317         /* The lower bound for the clock frequency is 0.5% lower as is
 318          * allowed by the spec */
 319         iowrite32(div_u64(bt->pixelclock * 995, 1000000000),
 320                   &clkloss->test_clk_cnt_val);
 321         /* will be enabled after the first frame has been received */
 322         iowrite32(bt->width * bt->height, &fw->active_length);
 323         iowrite32(div_u64((u64)clk_freq * tot_size, bt->pixelclock),
 324                   &fw->total_length);
 325         iowrite32(M00233_IRQ_TRIGGERS_BITMAP_VACTIVE_AREA_MSK |
 326                   M00233_IRQ_TRIGGERS_BITMAP_HACTIVE_AREA_MSK,
 327                   &vmr->irq_triggers);
 328         iowrite32(0, &cvi->control);
 329         iowrite32(M00233_CONTROL_BITMAP_ENABLE_MEASURE_MSK, &vmr->control);
 330
 331         iowrite32(0xff, &fw->output_color);
 332         iowrite32(M00479_CTRL_BITMAP_ENABLE_MSK, &clkloss->ctrl);
 333         iowrite32(M00473_CTRL_BITMAP_ENABLE_MSK |
 334                   M00473_CTRL_BITMAP_FORCE_FREEWHEEL_MODE_MSK, &fw->ctrl);
 335         s->unstable_frame = true;
 336         s->enable_freewheel = false;
 337         s->enable_cvi = false;
 338         s->skip_first_frames = 0;
 339
 340 done:
 341         s->sequence = 0;
 342         cobalt_dma_start_streaming(s);
 343         return 0;
 344 }
 345
 346 static void cobalt_dma_stop_streaming(struct cobalt_stream *s)
 347 {
 348         struct cobalt *cobalt = s->cobalt;
 349         struct sg_dma_desc_info *desc;
 350         struct cobalt_buffer *cb;
 351         struct list_head *p;
 352         unsigned long flags;
 353         int timeout_msec = 100;
 354         int rx = s->video_channel;
 355         struct m00460_evcnt_regmap __iomem *evcnt =
 356                 COBALT_CVI_EVCNT(cobalt, rx);
 357
 358         if (!s->is_output) {
 359                 iowrite32(0, &evcnt->control);
 360         } else if (!s->is_audio) {
 361                 struct m00514_syncgen_flow_evcnt_regmap __iomem *vo =
 362                         COBALT_TX_BASE(cobalt);
 363
 364                 iowrite32(M00514_CONTROL_BITMAP_EVCNT_CLEAR_MSK, &vo->control);
 365                 iowrite32(0, &vo->control);
 366         }
 367
 368         /* Try to stop the DMA engine gracefully */
 369         spin_lock_irqsave(&s->irqlock, flags);
 370         list_for_each(p, &s->bufs) {
 371                 cb = list_entry(p, struct cobalt_buffer, list);
 372                 desc = &s->dma_desc_info[cb->vb.vb2_buf.index];
 373                 /* Stop DMA after this descriptor chain */
 374                 descriptor_list_end_of_chain(desc);
 375         }
 376         spin_unlock_irqrestore(&s->irqlock, flags);
 377
 378         /* Wait 100 millisecond for DMA to finish, abort on timeout. */
 379         if (!wait_event_timeout(s->q.done_wq, is_dma_done(s),
 380                                 msecs_to_jiffies(timeout_msec))) {
 381                 omni_sg_dma_abort_channel(s);
 382                 pr_warn("aborted\n");
 383         }
 384         cobalt_write_bar0(cobalt, DMA_INTERRUPT_STATUS_REG,
 385                         1 << s->dma_channel);
 386 }
 387
 388 static void cobalt_stop_streaming(struct vb2_queue *q)
 389 {
 390         struct cobalt_stream *s = q->drv_priv;
 391         struct cobalt *cobalt = s->cobalt;
 392         int rx = s->video_channel;
 393         struct m00233_video_measure_regmap __iomem *vmr;
 394         struct m00473_freewheel_regmap __iomem *fw;
 395         struct m00479_clk_loss_detector_regmap __iomem *clkloss;
 396         struct cobalt_buffer *cb;
 397         struct list_head *p, *safe;
 398         unsigned long flags;
 399
 400         cobalt_dma_stop_streaming(s);
 401
 402         /* Return all buffers to user space */
 403         spin_lock_irqsave(&s->irqlock, flags);
 404         list_for_each_safe(p, safe, &s->bufs) {
 405                 cb = list_entry(p, struct cobalt_buffer, list);
 406                 list_del(&cb->list);
 407                 vb2_buffer_done(&cb->vb.vb2_buf, VB2_BUF_STATE_ERROR);
 408         }
 409         spin_unlock_irqrestore(&s->irqlock, flags);
 410
 411         if (s->is_audio || s->is_output)
 412                 return;
 413
 414         fw = COBALT_CVI_FREEWHEEL(cobalt, rx);
 415         vmr = COBALT_CVI_VMR(cobalt, rx);
 416         clkloss = COBALT_CVI_CLK_LOSS(cobalt, rx);
 417         iowrite32(0, &vmr->control);
 418         iowrite32(M00233_CONTROL_BITMAP_ENABLE_MEASURE_MSK, &vmr->control);
 419         iowrite32(0, &fw->ctrl);
 420         iowrite32(0, &clkloss->ctrl);
 421 }
 422
 423 static const struct vb2_ops cobalt_qops = {
 424         .queue_setup = cobalt_queue_setup,
 425         .buf_init = cobalt_buf_init,
 426         .buf_cleanup = cobalt_buf_cleanup,
 427         .buf_prepare = cobalt_buf_prepare,
 428         .buf_queue = cobalt_buf_queue,
 429         .start_streaming = cobalt_start_streaming,
 430         .stop_streaming = cobalt_stop_streaming,
 431         .wait_prepare = vb2_ops_wait_prepare,
 432         .wait_finish = vb2_ops_wait_finish,
 433 };
 434
 435 /* V4L2 ioctls */
 436
 437 #ifdef CONFIG_VIDEO_ADV_DEBUG
 438 static int cobalt_cobaltc(struct cobalt *cobalt, unsigned int cmd, void *arg)
 439 {
 440         struct v4l2_dbg_register *regs = arg;
 441         void __iomem *adrs = cobalt->bar1 + regs->reg;
 442
 443         cobalt_info("cobalt_cobaltc: adrs = %p\n", adrs);
 444
 445         if (!capable(CAP_SYS_ADMIN))
 446                 return -EPERM;
 447
 448         regs->size = 4;
 449         if (cmd == VIDIOC_DBG_S_REGISTER)
 450                 iowrite32(regs->val, adrs);
 451         else
 452                 regs->val = ioread32(adrs);
 453         return 0;
 454 }
 455
 456 static int cobalt_g_register(struct file *file, void *priv_fh,
 457                 struct v4l2_dbg_register *reg)
 458 {
 459         struct cobalt_stream *s = video_drvdata(file);
 460         struct cobalt *cobalt = s->cobalt;
 461
 462         return cobalt_cobaltc(cobalt, VIDIOC_DBG_G_REGISTER, reg);
 463 }
 464
 465 static int cobalt_s_register(struct file *file, void *priv_fh,
 466                 const struct v4l2_dbg_register *reg)
 467 {
 468         struct cobalt_stream *s = video_drvdata(file);
 469         struct cobalt *cobalt = s->cobalt;
 470
 471         return cobalt_cobaltc(cobalt, VIDIOC_DBG_S_REGISTER,
 472                         (struct v4l2_dbg_register *)reg);
 473 }
 474 #endif
 475
 476 static int cobalt_querycap(struct file *file, void *priv_fh,
 477                                 struct v4l2_capability *vcap)
 478 {
 479         struct cobalt_stream *s = video_drvdata(file);
 480         struct cobalt *cobalt = s->cobalt;
 481
 482         strscpy(vcap->driver, "cobalt", sizeof(vcap->driver));
 483         strscpy(vcap->card, "cobalt", sizeof(vcap->card));
 484         snprintf(vcap->bus_info, sizeof(vcap->bus_info),
 485                  "PCIe:%s", pci_name(cobalt->pci_dev));
 486         vcap->capabilities = V4L2_CAP_STREAMING | V4L2_CAP_READWRITE |
 487                 V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_DEVICE_CAPS;
 488         if (cobalt->have_hsma_tx)
 489                 vcap->capabilities |= V4L2_CAP_VIDEO_OUTPUT;
 490         return 0;
 491 }
 492
 493 static void cobalt_video_input_status_show(struct cobalt_stream *s)
 494 {
 495         struct m00389_cvi_regmap __iomem *cvi;
 496         struct m00233_video_measure_regmap __iomem *vmr;
 497         struct m00473_freewheel_regmap __iomem *fw;
 498         struct m00479_clk_loss_detector_regmap __iomem *clkloss;
 499         struct m00235_fdma_packer_regmap __iomem *packer;
 500         int rx = s->video_channel;
 501         struct cobalt *cobalt = s->cobalt;
 502         u32 cvi_ctrl, cvi_stat;
 503         u32 vmr_ctrl, vmr_stat;
 504
 505         cvi = COBALT_CVI(cobalt, rx);
 506         vmr = COBALT_CVI_VMR(cobalt, rx);
 507         fw = COBALT_CVI_FREEWHEEL(cobalt, rx);
 508         clkloss = COBALT_CVI_CLK_LOSS(cobalt, rx);
 509         packer = COBALT_CVI_PACKER(cobalt, rx);
 510         cvi_ctrl = ioread32(&cvi->control);
 511         cvi_stat = ioread32(&cvi->status);
 512         vmr_ctrl = ioread32(&vmr->control);
 513         vmr_stat = ioread32(&vmr->status);
 514         cobalt_info("rx%d: cvi resolution: %dx%d\n", rx,
 515                     ioread32(&cvi->frame_width), ioread32(&cvi->frame_height));
 516         cobalt_info("rx%d: cvi control: %s%s%s\n", rx,
 517                 (cvi_ctrl & M00389_CONTROL_BITMAP_ENABLE_MSK) ?
 518                         "enable " : "disable ",
 519                 (cvi_ctrl & M00389_CONTROL_BITMAP_HSYNC_POLARITY_LOW_MSK) ?
 520                         "HSync- " : "HSync+ ",
 521                 (cvi_ctrl & M00389_CONTROL_BITMAP_VSYNC_POLARITY_LOW_MSK) ?
 522                         "VSync- " : "VSync+ ");
 523         cobalt_info("rx%d: cvi status: %s%s\n", rx,
 524                 (cvi_stat & M00389_STATUS_BITMAP_LOCK_MSK) ?
 525                         "lock " : "no-lock ",
 526                 (cvi_stat & M00389_STATUS_BITMAP_ERROR_MSK) ?
 527                         "error " : "no-error ");
 528
 529         cobalt_info("rx%d: Measurements: %s%s%s%s%s%s%s\n", rx,
 530                 (vmr_ctrl & M00233_CONTROL_BITMAP_HSYNC_POLARITY_LOW_MSK) ?
 531                         "HSync- " : "HSync+ ",
 532                 (vmr_ctrl & M00233_CONTROL_BITMAP_VSYNC_POLARITY_LOW_MSK) ?
 533                         "VSync- " : "VSync+ ",
 534                 (vmr_ctrl & M00233_CONTROL_BITMAP_ENABLE_MEASURE_MSK) ?
 535                         "enabled " : "disabled ",
 536                 (vmr_ctrl & M00233_CONTROL_BITMAP_ENABLE_INTERRUPT_MSK) ?
 537                         "irq-enabled " : "irq-disabled ",
 538                 (vmr_ctrl & M00233_CONTROL_BITMAP_UPDATE_ON_HSYNC_MSK) ?
 539                         "update-on-hsync " : "",
 540                 (vmr_stat & M00233_STATUS_BITMAP_HSYNC_TIMEOUT_MSK) ?
 541                         "hsync-timeout " : "",
 542                 (vmr_stat & M00233_STATUS_BITMAP_INIT_DONE_MSK) ?
 543                         "init-done" : "");
 544         cobalt_info("rx%d: irq_status: 0x%02x irq_triggers: 0x%02x\n", rx,
 545                         ioread32(&vmr->irq_status) & 0xff,
 546                         ioread32(&vmr->irq_triggers) & 0xff);
 547         cobalt_info("rx%d: vsync: %d\n", rx, ioread32(&vmr->vsync_time));
 548         cobalt_info("rx%d: vbp: %d\n", rx, ioread32(&vmr->vback_porch));
 549         cobalt_info("rx%d: vact: %d\n", rx, ioread32(&vmr->vactive_area));
 550         cobalt_info("rx%d: vfb: %d\n", rx, ioread32(&vmr->vfront_porch));
 551         cobalt_info("rx%d: hsync: %d\n", rx, ioread32(&vmr->hsync_time));
 552         cobalt_info("rx%d: hbp: %d\n", rx, ioread32(&vmr->hback_porch));
 553         cobalt_info("rx%d: hact: %d\n", rx, ioread32(&vmr->hactive_area));
 554         cobalt_info("rx%d: hfb: %d\n", rx, ioread32(&vmr->hfront_porch));
 555         cobalt_info("rx%d: Freewheeling: %s%s%s\n", rx,
 556                 (ioread32(&fw->ctrl) & M00473_CTRL_BITMAP_ENABLE_MSK) ?
 557                         "enabled " : "disabled ",
 558                 (ioread32(&fw->ctrl) & M00473_CTRL_BITMAP_FORCE_FREEWHEEL_MODE_MSK) ?
 559                         "forced " : "",
 560                 (ioread32(&fw->status) & M00473_STATUS_BITMAP_FREEWHEEL_MODE_MSK) ?
 561                         "freewheeling " : "video-passthrough ");
 562         iowrite32(0xff, &vmr->irq_status);
 563         cobalt_info("rx%d: Clock Loss Detection: %s%s\n", rx,
 564                 (ioread32(&clkloss->ctrl) & M00479_CTRL_BITMAP_ENABLE_MSK) ?
 565                         "enabled " : "disabled ",
 566                 (ioread32(&clkloss->status) & M00479_STATUS_BITMAP_CLOCK_MISSING_MSK) ?
 567                         "clock-missing " : "found-clock ");
 568         cobalt_info("rx%d: Packer: %x\n", rx, ioread32(&packer->control));
 569 }
 570
 571 static int cobalt_log_status(struct file *file, void *priv_fh)
 572 {
 573         struct cobalt_stream *s = video_drvdata(file);
 574         struct cobalt *cobalt = s->cobalt;
 575         struct m00514_syncgen_flow_evcnt_regmap __iomem *vo =
 576                 COBALT_TX_BASE(cobalt);
 577         u8 stat;
 578
 579         cobalt_info("%s", cobalt->hdl_info);
 580         cobalt_info("sysctrl: %08x, sysstat: %08x\n",
 581                         cobalt_g_sysctrl(cobalt),
 582                         cobalt_g_sysstat(cobalt));
 583         cobalt_info("dma channel: %d, video channel: %d\n",
 584                         s->dma_channel, s->video_channel);
 585         cobalt_pcie_status_show(cobalt);
 586         cobalt_cpld_status(cobalt);
 587         cobalt_irq_log_status(cobalt);
 588         v4l2_subdev_call(s->sd, core, log_status);
 589         if (!s->is_output) {
 590                 cobalt_video_input_status_show(s);
 591                 return 0;
 592         }
 593
 594         stat = ioread32(&vo->rd_status);
 595
 596         cobalt_info("tx: status: %s%s\n",
 597                 (stat & M00514_RD_STATUS_BITMAP_FLOW_CTRL_NO_DATA_ERROR_MSK) ?
 598                         "no_data " : "",
 599                 (stat & M00514_RD_STATUS_BITMAP_READY_BUFFER_FULL_MSK) ?
 600                         "ready_buffer_full " : "");
 601         cobalt_info("tx: evcnt: %d\n", ioread32(&vo->rd_evcnt_count));
 602         return 0;
 603 }
 604
 605 static int cobalt_enum_dv_timings(struct file *file, void *priv_fh,
 606                                     struct v4l2_enum_dv_timings *timings)
 607 {
 608         struct cobalt_stream *s = video_drvdata(file);
 609
 610         if (s->input == 1) {
 611                 if (timings->index)
 612                         return -EINVAL;
 613                 memset(timings->reserved, 0, sizeof(timings->reserved));
 614                 timings->timings = cea1080p60;
 615                 return 0;
 616         }
 617         timings->pad = 0;
 618         return v4l2_subdev_call(s->sd,
 619                         pad, enum_dv_timings, timings);
 620 }
 621
 622 static int cobalt_s_dv_timings(struct file *file, void *priv_fh,
 623                                     struct v4l2_dv_timings *timings)
 624 {
 625         struct cobalt_stream *s = video_drvdata(file);
 626         int err;
 627
 628         if (s->input == 1) {
 629                 *timings = cea1080p60;
 630                 return 0;
 631         }
 632
 633         if (v4l2_match_dv_timings(timings, &s->timings, 0, true))
 634                 return 0;
 635
 636         if (vb2_is_busy(&s->q))
 637                 return -EBUSY;
 638
 639         err = v4l2_subdev_call(s->sd,
 640                         video, s_dv_timings, timings);
 641         if (!err) {
 642                 s->timings = *timings;
 643                 s->width = timings->bt.width;
 644                 s->height = timings->bt.height;
 645                 s->stride = timings->bt.width * s->bpp;
 646         }
 647         return err;
 648 }
 649
 650 static int cobalt_g_dv_timings(struct file *file, void *priv_fh,
 651                                     struct v4l2_dv_timings *timings)
 652 {
 653         struct cobalt_stream *s = video_drvdata(file);
 654
 655         if (s->input == 1) {
 656                 *timings = cea1080p60;
 657                 return 0;
 658         }
 659         return v4l2_subdev_call(s->sd,
 660                         video, g_dv_timings, timings);
 661 }
 662
 663 static int cobalt_query_dv_timings(struct file *file, void *priv_fh,
 664                                     struct v4l2_dv_timings *timings)
 665 {
 666         struct cobalt_stream *s = video_drvdata(file);
 667
 668         if (s->input == 1) {
 669                 *timings = cea1080p60;
 670                 return 0;
 671         }
 672         return v4l2_subdev_call(s->sd,
 673                         video, query_dv_timings, timings);
 674 }
 675
 676 static int cobalt_dv_timings_cap(struct file *file, void *priv_fh,
 677                                     struct v4l2_dv_timings_cap *cap)
 678 {
 679         struct cobalt_stream *s = video_drvdata(file);
 680
 681         cap->pad = 0;
 682         return v4l2_subdev_call(s->sd,
 683                         pad, dv_timings_cap, cap);
 684 }
 685
 686 static int cobalt_enum_fmt_vid_cap(struct file *file, void *priv_fh,
 687                 struct v4l2_fmtdesc *f)
 688 {
 689         switch (f->index) {
 690         case 0:
 691                 f->pixelformat = V4L2_PIX_FMT_YUYV;
 692                 break;
 693         case 1:
 694                 f->pixelformat = V4L2_PIX_FMT_RGB24;
 695                 break;
 696         case 2:
 697                 f->pixelformat = V4L2_PIX_FMT_BGR32;
 698                 break;
 699         default:
 700                 return -EINVAL;
 701         }
 702
 703         return 0;
 704 }
 705
 706 static int cobalt_g_fmt_vid_cap(struct file *file, void *priv_fh,
 707                 struct v4l2_format *f)
 708 {
 709         struct cobalt_stream *s = video_drvdata(file);
 710         struct v4l2_pix_format *pix = &f->fmt.pix;
 711         struct v4l2_subdev_format sd_fmt;
 712
 713         pix->width = s->width;
 714         pix->height = s->height;
 715         pix->bytesperline = s->stride;
 716         pix->field = V4L2_FIELD_NONE;
 717
 718         if (s->input == 1) {
 719                 pix->colorspace = V4L2_COLORSPACE_SRGB;
 720         } else {
 721                 sd_fmt.pad = s->pad_source;
 722                 sd_fmt.which = V4L2_SUBDEV_FORMAT_ACTIVE;
 723                 v4l2_subdev_call(s->sd, pad, get_fmt, NULL, &sd_fmt);
 724                 v4l2_fill_pix_format(pix, &sd_fmt.format);
 725         }
 726
 727         pix->pixelformat = s->pixfmt;
 728         pix->sizeimage = pix->bytesperline * pix->height;
 729
 730         return 0;
 731 }
 732
 733 static int cobalt_try_fmt_vid_cap(struct file *file, void *priv_fh,
 734                 struct v4l2_format *f)
 735 {
 736         struct cobalt_stream *s = video_drvdata(file);
 737         struct v4l2_pix_format *pix = &f->fmt.pix;
 738         struct v4l2_subdev_format sd_fmt;
 739
 740         /* Check for min (QCIF) and max (Full HD) size */
 741         if ((pix->width < 176) || (pix->height < 144)) {
 742                 pix->width = 176;
 743                 pix->height = 144;
 744         }
 745
 746         if ((pix->width > 1920) || (pix->height > 1080)) {
 747                 pix->width = 1920;
 748                 pix->height = 1080;
 749         }
 750
 751         /* Make width multiple of 4 */
 752         pix->width &= ~0x3;
 753
 754         /* Make height multiple of 2 */
 755         pix->height &= ~0x1;
 756
 757         if (s->input == 1) {
 758                 /* Generator => fixed format only */
 759                 pix->width = 1920;
 760                 pix->height = 1080;
 761                 pix->colorspace = V4L2_COLORSPACE_SRGB;
 762         } else {
 763                 sd_fmt.pad = s->pad_source;
 764                 sd_fmt.which = V4L2_SUBDEV_FORMAT_ACTIVE;
 765                 v4l2_subdev_call(s->sd, pad, get_fmt, NULL, &sd_fmt);
 766                 v4l2_fill_pix_format(pix, &sd_fmt.format);
 767         }
 768
 769         switch (pix->pixelformat) {
 770         case V4L2_PIX_FMT_YUYV:
 771         default:
 772                 pix->bytesperline = max(pix->bytesperline & ~0x3,
 773                                 pix->width * COBALT_BYTES_PER_PIXEL_YUYV);
 774                 pix->pixelformat = V4L2_PIX_FMT_YUYV;
 775                 break;
 776         case V4L2_PIX_FMT_RGB24:
 777                 pix->bytesperline = max(pix->bytesperline & ~0x3,
 778                                 pix->width * COBALT_BYTES_PER_PIXEL_RGB24);
 779                 break;
 780         case V4L2_PIX_FMT_BGR32:
 781                 pix->bytesperline = max(pix->bytesperline & ~0x3,
 782                                 pix->width * COBALT_BYTES_PER_PIXEL_RGB32);
 783                 break;
 784         }
 785
 786         pix->sizeimage = pix->bytesperline * pix->height;
 787         pix->field = V4L2_FIELD_NONE;
 788
 789         return 0;
 790 }
 791
 792 static int cobalt_s_fmt_vid_cap(struct file *file, void *priv_fh,
 793                 struct v4l2_format *f)
 794 {
 795         struct cobalt_stream *s = video_drvdata(file);
 796         struct v4l2_pix_format *pix = &f->fmt.pix;
 797
 798         if (vb2_is_busy(&s->q))
 799                 return -EBUSY;
 800
 801         if (cobalt_try_fmt_vid_cap(file, priv_fh, f))
 802                 return -EINVAL;
 803
 804         s->width = pix->width;
 805         s->height = pix->height;
 806         s->stride = pix->bytesperline;
 807         switch (pix->pixelformat) {
 808         case V4L2_PIX_FMT_YUYV:
 809                 s->bpp = COBALT_BYTES_PER_PIXEL_YUYV;
 810                 break;
 811         case V4L2_PIX_FMT_RGB24:
 812                 s->bpp = COBALT_BYTES_PER_PIXEL_RGB24;
 813                 break;
 814         case V4L2_PIX_FMT_BGR32:
 815                 s->bpp = COBALT_BYTES_PER_PIXEL_RGB32;
 816                 break;
 817         default:
 818                 return -EINVAL;
 819         }
 820         s->pixfmt = pix->pixelformat;
 821         cobalt_enable_input(s);
 822
 823         return 0;
 824 }
 825
 826 static int cobalt_try_fmt_vid_out(struct file *file, void *priv_fh,
 827                 struct v4l2_format *f)
 828 {
 829         struct v4l2_pix_format *pix = &f->fmt.pix;
 830
 831         /* Check for min (QCIF) and max (Full HD) size */
 832         if ((pix->width < 176) || (pix->height < 144)) {
 833                 pix->width = 176;
 834                 pix->height = 144;
 835         }
 836
 837         if ((pix->width > 1920) || (pix->height > 1080)) {
 838                 pix->width = 1920;
 839                 pix->height = 1080;
 840         }
 841
 842         /* Make width multiple of 4 */
 843         pix->width &= ~0x3;
 844
 845         /* Make height multiple of 2 */
 846         pix->height &= ~0x1;
 847
 848         switch (pix->pixelformat) {
 849         case V4L2_PIX_FMT_YUYV:
 850         default:
 851                 pix->bytesperline = max(pix->bytesperline & ~0x3,
 852                                 pix->width * COBALT_BYTES_PER_PIXEL_YUYV);
 853                 pix->pixelformat = V4L2_PIX_FMT_YUYV;
 854                 break;
 855         case V4L2_PIX_FMT_BGR32:
 856                 pix->bytesperline = max(pix->bytesperline & ~0x3,
 857                                 pix->width * COBALT_BYTES_PER_PIXEL_RGB32);
 858                 break;
 859         }
 860
 861         pix->sizeimage = pix->bytesperline * pix->height;
 862         pix->field = V4L2_FIELD_NONE;
 863
 864         return 0;
 865 }
 866
 867 static int cobalt_g_fmt_vid_out(struct file *file, void *priv_fh,
 868                 struct v4l2_format *f)
 869 {
 870         struct cobalt_stream *s = video_drvdata(file);
 871         struct v4l2_pix_format *pix = &f->fmt.pix;
 872
 873         pix->width = s->width;
 874         pix->height = s->height;
 875         pix->bytesperline = s->stride;
 876         pix->field = V4L2_FIELD_NONE;
 877         pix->pixelformat = s->pixfmt;
 878         pix->colorspace = s->colorspace;
 879         pix->xfer_func = s->xfer_func;
 880         pix->ycbcr_enc = s->ycbcr_enc;
 881         pix->quantization = s->quantization;
 882         pix->sizeimage = pix->bytesperline * pix->height;
 883
 884         return 0;
 885 }
 886
 887 static int cobalt_enum_fmt_vid_out(struct file *file, void *priv_fh,
 888                 struct v4l2_fmtdesc *f)
 889 {
 890         switch (f->index) {
 891         case 0:
 892                 f->pixelformat = V4L2_PIX_FMT_YUYV;
 893                 break;
 894         case 1:
 895                 f->pixelformat = V4L2_PIX_FMT_BGR32;
 896                 break;
 897         default:
 898                 return -EINVAL;
 899         }
 900
 901         return 0;
 902 }
 903
 904 static int cobalt_s_fmt_vid_out(struct file *file, void *priv_fh,
 905                 struct v4l2_format *f)
 906 {
 907         struct cobalt_stream *s = video_drvdata(file);
 908         struct v4l2_pix_format *pix = &f->fmt.pix;
 909         struct v4l2_subdev_format sd_fmt = { 0 };
 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         sd_fmt.which = V4L2_SUBDEV_FORMAT_ACTIVE;
 941         v4l2_fill_mbus_format(&sd_fmt.format, pix, code);
 942         v4l2_subdev_call(s->sd, pad, set_fmt, NULL, &sd_fmt);
 943         return 0;
 944 }
 945
 946 static int cobalt_enum_input(struct file *file, void *priv_fh,
 947                                  struct v4l2_input *inp)
 948 {
 949         struct cobalt_stream *s = video_drvdata(file);
 950
 951         if (inp->index > 1)
 952                 return -EINVAL;
 953         if (inp->index == 0)
 954                 snprintf(inp->name, sizeof(inp->name),
 955                                 "HDMI-%d", s->video_channel);
 956         else
 957                 snprintf(inp->name, sizeof(inp->name),
 958                                 "Generator-%d", s->video_channel);
 959         inp->type = V4L2_INPUT_TYPE_CAMERA;
 960         inp->capabilities = V4L2_IN_CAP_DV_TIMINGS;
 961         if (inp->index == 1)
 962                 return 0;
 963         return v4l2_subdev_call(s->sd,
 964                         video, g_input_status, &inp->status);
 965 }
 966
 967 static int cobalt_g_input(struct file *file, void *priv_fh, unsigned int *i)
 968 {
 969         struct cobalt_stream *s = video_drvdata(file);
 970
 971         *i = s->input;
 972         return 0;
 973 }
 974
 975 static int cobalt_s_input(struct file *file, void *priv_fh, unsigned int i)
 976 {
 977         struct cobalt_stream *s = video_drvdata(file);
 978
 979         if (i >= 2)
 980                 return -EINVAL;
 981         if (vb2_is_busy(&s->q))
 982                 return -EBUSY;
 983         s->input = i;
 984
 985         cobalt_enable_input(s);
 986
 987         if (s->input == 1) /* Test Pattern Generator */
 988                 return 0;
 989
 990         return v4l2_subdev_call(s->sd, video, s_routing,
 991                         ADV76XX_PAD_HDMI_PORT_A, 0, 0);
 992 }
 993
 994 static int cobalt_enum_output(struct file *file, void *priv_fh,
 995                                  struct v4l2_output *out)
 996 {
 997         if (out->index)
 998                 return -EINVAL;
 999         snprintf(out->name, sizeof(out->name), "HDMI-%d", out->index);
1000         out->type = V4L2_OUTPUT_TYPE_ANALOG;
1001         out->capabilities = V4L2_OUT_CAP_DV_TIMINGS;
1002         return 0;
1003 }
1004
1005 static int cobalt_g_output(struct file *file, void *priv_fh, unsigned int *i)
1006 {
1007         *i = 0;
1008         return 0;
1009 }
1010
1011 static int cobalt_s_output(struct file *file, void *priv_fh, unsigned int i)
1012 {
1013         return i ? -EINVAL : 0;
1014 }
1015
1016 static int cobalt_g_edid(struct file *file, void *fh, struct v4l2_edid *edid)
1017 {
1018         struct cobalt_stream *s = video_drvdata(file);
1019         u32 pad = edid->pad;
1020         int ret;
1021
1022         if (edid->pad >= (s->is_output ? 1 : 2))
1023                 return -EINVAL;
1024         edid->pad = 0;
1025         ret = v4l2_subdev_call(s->sd, pad, get_edid, edid);
1026         edid->pad = pad;
1027         return ret;
1028 }
1029
1030 static int cobalt_s_edid(struct file *file, void *fh, struct v4l2_edid *edid)
1031 {
1032         struct cobalt_stream *s = video_drvdata(file);
1033         u32 pad = edid->pad;
1034         int ret;
1035
1036         if (edid->pad >= 2)
1037                 return -EINVAL;
1038         edid->pad = 0;
1039         ret = v4l2_subdev_call(s->sd, pad, set_edid, edid);
1040         edid->pad = pad;
1041         return ret;
1042 }
1043
1044 static int cobalt_subscribe_event(struct v4l2_fh *fh,
1045                                   const struct v4l2_event_subscription *sub)
1046 {
1047         switch (sub->type) {
1048         case V4L2_EVENT_SOURCE_CHANGE:
1049                 return v4l2_event_subscribe(fh, sub, 4, NULL);
1050         }
1051         return v4l2_ctrl_subscribe_event(fh, sub);
1052 }
1053
1054 static int cobalt_g_parm(struct file *file, void *fh, struct v4l2_streamparm *a)
1055 {
1056         struct cobalt_stream *s = video_drvdata(file);
1057         struct v4l2_fract fps;
1058
1059         if (a->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
1060                 return -EINVAL;
1061
1062         fps = v4l2_calc_timeperframe(&s->timings);
1063         a->parm.capture.timeperframe.numerator = fps.numerator;
1064         a->parm.capture.timeperframe.denominator = fps.denominator;
1065         a->parm.capture.readbuffers = 3;
1066         return 0;
1067 }
1068
1069 static int cobalt_g_pixelaspect(struct file *file, void *fh,
1070                                 int type, struct v4l2_fract *f)
1071 {
1072         struct cobalt_stream *s = video_drvdata(file);
1073         struct v4l2_dv_timings timings;
1074         int err = 0;
1075
1076         if (type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
1077                 return -EINVAL;
1078
1079         if (s->input == 1)
1080                 timings = cea1080p60;
1081         else
1082                 err = v4l2_subdev_call(s->sd, video, g_dv_timings, &timings);
1083         if (!err)
1084                 *f = v4l2_dv_timings_aspect_ratio(&timings);
1085         return err;
1086 }
1087
1088 static int cobalt_g_selection(struct file *file, void *fh,
1089                               struct v4l2_selection *sel)
1090 {
1091         struct cobalt_stream *s = video_drvdata(file);
1092         struct v4l2_dv_timings timings;
1093         int err = 0;
1094
1095         if (sel->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
1096                 return -EINVAL;
1097
1098         if (s->input == 1)
1099                 timings = cea1080p60;
1100         else
1101                 err = v4l2_subdev_call(s->sd, video, g_dv_timings, &timings);
1102
1103         if (err)
1104                 return err;
1105
1106         switch (sel->target) {
1107         case V4L2_SEL_TGT_CROP_BOUNDS:
1108         case V4L2_SEL_TGT_CROP_DEFAULT:
1109                 sel->r.top = 0;
1110                 sel->r.left = 0;
1111                 sel->r.width = timings.bt.width;
1112                 sel->r.height = timings.bt.height;
1113                 break;
1114         default:
1115                 return -EINVAL;
1116         }
1117         return 0;
1118 }
1119
1120 static const struct v4l2_ioctl_ops cobalt_ioctl_ops = {
1121         .vidioc_querycap                = cobalt_querycap,
1122         .vidioc_g_parm                  = cobalt_g_parm,
1123         .vidioc_log_status              = cobalt_log_status,
1124         .vidioc_streamon                = vb2_ioctl_streamon,
1125         .vidioc_streamoff               = vb2_ioctl_streamoff,
1126         .vidioc_g_pixelaspect           = cobalt_g_pixelaspect,
1127         .vidioc_g_selection             = cobalt_g_selection,
1128         .vidioc_enum_input              = cobalt_enum_input,
1129         .vidioc_g_input                 = cobalt_g_input,
1130         .vidioc_s_input                 = cobalt_s_input,
1131         .vidioc_enum_fmt_vid_cap        = cobalt_enum_fmt_vid_cap,
1132         .vidioc_g_fmt_vid_cap           = cobalt_g_fmt_vid_cap,
1133         .vidioc_s_fmt_vid_cap           = cobalt_s_fmt_vid_cap,
1134         .vidioc_try_fmt_vid_cap         = cobalt_try_fmt_vid_cap,
1135         .vidioc_enum_output             = cobalt_enum_output,
1136         .vidioc_g_output                = cobalt_g_output,
1137         .vidioc_s_output                = cobalt_s_output,
1138         .vidioc_enum_fmt_vid_out        = cobalt_enum_fmt_vid_out,
1139         .vidioc_g_fmt_vid_out           = cobalt_g_fmt_vid_out,
1140         .vidioc_s_fmt_vid_out           = cobalt_s_fmt_vid_out,
1141         .vidioc_try_fmt_vid_out         = cobalt_try_fmt_vid_out,
1142         .vidioc_s_dv_timings            = cobalt_s_dv_timings,
1143         .vidioc_g_dv_timings            = cobalt_g_dv_timings,
1144         .vidioc_query_dv_timings        = cobalt_query_dv_timings,
1145         .vidioc_enum_dv_timings         = cobalt_enum_dv_timings,
1146         .vidioc_dv_timings_cap          = cobalt_dv_timings_cap,
1147         .vidioc_g_edid                  = cobalt_g_edid,
1148         .vidioc_s_edid                  = cobalt_s_edid,
1149         .vidioc_subscribe_event         = cobalt_subscribe_event,
1150         .vidioc_unsubscribe_event       = v4l2_event_unsubscribe,
1151         .vidioc_reqbufs                 = vb2_ioctl_reqbufs,
1152         .vidioc_create_bufs             = vb2_ioctl_create_bufs,
1153         .vidioc_querybuf                = vb2_ioctl_querybuf,
1154         .vidioc_qbuf                    = vb2_ioctl_qbuf,
1155         .vidioc_dqbuf                   = vb2_ioctl_dqbuf,
1156         .vidioc_expbuf                  = vb2_ioctl_expbuf,
1157 #ifdef CONFIG_VIDEO_ADV_DEBUG
1158         .vidioc_g_register              = cobalt_g_register,
1159         .vidioc_s_register              = cobalt_s_register,
1160 #endif
1161 };
1162
1163 static const struct v4l2_ioctl_ops cobalt_ioctl_empty_ops = {
1164 #ifdef CONFIG_VIDEO_ADV_DEBUG
1165         .vidioc_g_register              = cobalt_g_register,
1166         .vidioc_s_register              = cobalt_s_register,
1167 #endif
1168 };
1169
1170 /* Register device nodes */
1171
1172 static const struct v4l2_file_operations cobalt_fops = {
1173         .owner = THIS_MODULE,
1174         .open = v4l2_fh_open,
1175         .unlocked_ioctl = video_ioctl2,
1176         .release = vb2_fop_release,
1177         .poll = vb2_fop_poll,
1178         .mmap = vb2_fop_mmap,
1179         .read = vb2_fop_read,
1180 };
1181
1182 static const struct v4l2_file_operations cobalt_out_fops = {
1183         .owner = THIS_MODULE,
1184         .open = v4l2_fh_open,
1185         .unlocked_ioctl = video_ioctl2,
1186         .release = vb2_fop_release,
1187         .poll = vb2_fop_poll,
1188         .mmap = vb2_fop_mmap,
1189         .write = vb2_fop_write,
1190 };
1191
1192 static const struct v4l2_file_operations cobalt_empty_fops = {
1193         .owner = THIS_MODULE,
1194         .open = v4l2_fh_open,
1195         .unlocked_ioctl = video_ioctl2,
1196         .release = v4l2_fh_release,
1197 };
1198
1199 static int cobalt_node_register(struct cobalt *cobalt, int node)
1200 {
1201         static const struct v4l2_dv_timings dv1080p60 =
1202                 V4L2_DV_BT_CEA_1920X1080P60;
1203         struct cobalt_stream *s = cobalt->streams + node;
1204         struct video_device *vdev = &s->vdev;
1205         struct vb2_queue *q = &s->q;
1206         int ret;
1207
1208         mutex_init(&s->lock);
1209         spin_lock_init(&s->irqlock);
1210
1211         snprintf(vdev->name, sizeof(vdev->name),
1212                         "%s-%d", cobalt->v4l2_dev.name, node);
1213         s->width = 1920;
1214         /* Audio frames are just 4 lines of 1920 bytes */
1215         s->height = s->is_audio ? 4 : 1080;
1216
1217         if (s->is_audio) {
1218                 s->bpp = 1;
1219                 s->pixfmt = V4L2_PIX_FMT_GREY;
1220         } else if (s->is_output) {
1221                 s->bpp = COBALT_BYTES_PER_PIXEL_RGB32;
1222                 s->pixfmt = V4L2_PIX_FMT_BGR32;
1223         } else {
1224                 s->bpp = COBALT_BYTES_PER_PIXEL_YUYV;
1225                 s->pixfmt = V4L2_PIX_FMT_YUYV;
1226         }
1227         s->colorspace = V4L2_COLORSPACE_SRGB;
1228         s->stride = s->width * s->bpp;
1229
1230         if (!s->is_audio) {
1231                 if (s->is_dummy)
1232                         cobalt_warn("Setting up dummy video node %d\n", node);
1233                 vdev->v4l2_dev = &cobalt->v4l2_dev;
1234                 if (s->is_dummy)
1235                         vdev->fops = &cobalt_empty_fops;
1236                 else
1237                         vdev->fops = s->is_output ? &cobalt_out_fops :
1238                                                     &cobalt_fops;
1239                 vdev->release = video_device_release_empty;
1240                 vdev->vfl_dir = s->is_output ? VFL_DIR_TX : VFL_DIR_RX;
1241                 vdev->lock = &s->lock;
1242                 if (s->sd)
1243                         vdev->ctrl_handler = s->sd->ctrl_handler;
1244                 s->timings = dv1080p60;
1245                 v4l2_subdev_call(s->sd, video, s_dv_timings, &s->timings);
1246                 if (!s->is_output && s->sd)
1247                         cobalt_enable_input(s);
1248                 vdev->ioctl_ops = s->is_dummy ? &cobalt_ioctl_empty_ops :
1249                                   &cobalt_ioctl_ops;
1250         }
1251
1252         INIT_LIST_HEAD(&s->bufs);
1253         q->type = s->is_output ? V4L2_BUF_TYPE_VIDEO_OUTPUT :
1254                                  V4L2_BUF_TYPE_VIDEO_CAPTURE;
1255         q->io_modes = VB2_MMAP | VB2_USERPTR | VB2_DMABUF;
1256         q->io_modes |= s->is_output ? VB2_WRITE : VB2_READ;
1257         q->drv_priv = s;
1258         q->buf_struct_size = sizeof(struct cobalt_buffer);
1259         q->ops = &cobalt_qops;
1260         q->mem_ops = &vb2_dma_sg_memops;
1261         q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;
1262         q->min_buffers_needed = 2;
1263         q->lock = &s->lock;
1264         q->dev = &cobalt->pci_dev->dev;
1265         vdev->queue = q;
1266         vdev->device_caps = V4L2_CAP_STREAMING | V4L2_CAP_READWRITE;
1267         if (s->is_output)
1268                 vdev->device_caps |= V4L2_CAP_VIDEO_OUTPUT;
1269         else
1270                 vdev->device_caps |= V4L2_CAP_VIDEO_CAPTURE;
1271
1272         video_set_drvdata(vdev, s);
1273         ret = vb2_queue_init(q);
1274         if (!s->is_audio && ret == 0)
1275                 ret = video_register_device(vdev, VFL_TYPE_VIDEO, -1);
1276         else if (!s->is_dummy)
1277                 ret = cobalt_alsa_init(s);
1278
1279         if (ret < 0) {
1280                 if (!s->is_audio)
1281                         cobalt_err("couldn't register v4l2 device node %d\n",
1282                                         node);
1283                 return ret;
1284         }
1285         cobalt_info("registered node %d\n", node);
1286         return 0;
1287 }
1288
1289 /* Initialize v4l2 variables and register v4l2 devices */
1290 int cobalt_nodes_register(struct cobalt *cobalt)
1291 {
1292         int node, ret;
1293
1294         /* Setup V4L2 Devices */
1295         for (node = 0; node < COBALT_NUM_STREAMS; node++) {
1296                 ret = cobalt_node_register(cobalt, node);
1297                 if (ret)
1298                         return ret;
1299         }
1300         return 0;
1301 }
1302
1303 /* Unregister v4l2 devices */
1304 void cobalt_nodes_unregister(struct cobalt *cobalt)
1305 {
1306         int node;
1307
1308         /* Teardown all streams */
1309         for (node = 0; node < COBALT_NUM_STREAMS; node++) {
1310                 struct cobalt_stream *s = cobalt->streams + node;
1311                 struct video_device *vdev = &s->vdev;
1312
1313                 if (!s->is_audio)
1314                         video_unregister_device(vdev);
1315                 else if (!s->is_dummy)
1316                         cobalt_alsa_exit(s);
1317         }
1318 }