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->device_caps = V4L2_CAP_STREAMING | V4L2_CAP_READWRITE; 487 if (s->is_output) 488 vcap->device_caps |= V4L2_CAP_VIDEO_OUTPUT; 489 else 490 vcap->device_caps |= V4L2_CAP_VIDEO_CAPTURE; 491 vcap->capabilities = vcap->device_caps | V4L2_CAP_DEVICE_CAPS | 492 V4L2_CAP_VIDEO_CAPTURE; 493 if (cobalt->have_hsma_tx) 494 vcap->capabilities |= V4L2_CAP_VIDEO_OUTPUT; 495 return 0; 496 } 497 498 static void cobalt_video_input_status_show(struct cobalt_stream *s) 499 { 500 struct m00389_cvi_regmap __iomem *cvi; 501 struct m00233_video_measure_regmap __iomem *vmr; 502 struct m00473_freewheel_regmap __iomem *fw; 503 struct m00479_clk_loss_detector_regmap __iomem *clkloss; 504 struct m00235_fdma_packer_regmap __iomem *packer; 505 int rx = s->video_channel; 506 struct cobalt *cobalt = s->cobalt; 507 u32 cvi_ctrl, cvi_stat; 508 u32 vmr_ctrl, vmr_stat; 509 510 cvi = COBALT_CVI(cobalt, rx); 511 vmr = COBALT_CVI_VMR(cobalt, rx); 512 fw = COBALT_CVI_FREEWHEEL(cobalt, rx); 513 clkloss = COBALT_CVI_CLK_LOSS(cobalt, rx); 514 packer = COBALT_CVI_PACKER(cobalt, rx); 515 cvi_ctrl = ioread32(&cvi->control); 516 cvi_stat = ioread32(&cvi->status); 517 vmr_ctrl = ioread32(&vmr->control); 518 vmr_stat = ioread32(&vmr->status); 519 cobalt_info("rx%d: cvi resolution: %dx%d\n", rx, 520 ioread32(&cvi->frame_width), ioread32(&cvi->frame_height)); 521 cobalt_info("rx%d: cvi control: %s%s%s\n", rx, 522 (cvi_ctrl & M00389_CONTROL_BITMAP_ENABLE_MSK) ? 523 "enable " : "disable ", 524 (cvi_ctrl & M00389_CONTROL_BITMAP_HSYNC_POLARITY_LOW_MSK) ? 525 "HSync- " : "HSync+ ", 526 (cvi_ctrl & M00389_CONTROL_BITMAP_VSYNC_POLARITY_LOW_MSK) ? 527 "VSync- " : "VSync+ "); 528 cobalt_info("rx%d: cvi status: %s%s\n", rx, 529 (cvi_stat & M00389_STATUS_BITMAP_LOCK_MSK) ? 530 "lock " : "no-lock ", 531 (cvi_stat & M00389_STATUS_BITMAP_ERROR_MSK) ? 532 "error " : "no-error "); 533 534 cobalt_info("rx%d: Measurements: %s%s%s%s%s%s%s\n", rx, 535 (vmr_ctrl & M00233_CONTROL_BITMAP_HSYNC_POLARITY_LOW_MSK) ? 536 "HSync- " : "HSync+ ", 537 (vmr_ctrl & M00233_CONTROL_BITMAP_VSYNC_POLARITY_LOW_MSK) ? 538 "VSync- " : "VSync+ ", 539 (vmr_ctrl & M00233_CONTROL_BITMAP_ENABLE_MEASURE_MSK) ? 540 "enabled " : "disabled ", 541 (vmr_ctrl & M00233_CONTROL_BITMAP_ENABLE_INTERRUPT_MSK) ? 542 "irq-enabled " : "irq-disabled ", 543 (vmr_ctrl & M00233_CONTROL_BITMAP_UPDATE_ON_HSYNC_MSK) ? 544 "update-on-hsync " : "", 545 (vmr_stat & M00233_STATUS_BITMAP_HSYNC_TIMEOUT_MSK) ? 546 "hsync-timeout " : "", 547 (vmr_stat & M00233_STATUS_BITMAP_INIT_DONE_MSK) ? 548 "init-done" : ""); 549 cobalt_info("rx%d: irq_status: 0x%02x irq_triggers: 0x%02x\n", rx, 550 ioread32(&vmr->irq_status) & 0xff, 551 ioread32(&vmr->irq_triggers) & 0xff); 552 cobalt_info("rx%d: vsync: %d\n", rx, ioread32(&vmr->vsync_time)); 553 cobalt_info("rx%d: vbp: %d\n", rx, ioread32(&vmr->vback_porch)); 554 cobalt_info("rx%d: vact: %d\n", rx, ioread32(&vmr->vactive_area)); 555 cobalt_info("rx%d: vfb: %d\n", rx, ioread32(&vmr->vfront_porch)); 556 cobalt_info("rx%d: hsync: %d\n", rx, ioread32(&vmr->hsync_time)); 557 cobalt_info("rx%d: hbp: %d\n", rx, ioread32(&vmr->hback_porch)); 558 cobalt_info("rx%d: hact: %d\n", rx, ioread32(&vmr->hactive_area)); 559 cobalt_info("rx%d: hfb: %d\n", rx, ioread32(&vmr->hfront_porch)); 560 cobalt_info("rx%d: Freewheeling: %s%s%s\n", rx, 561 (ioread32(&fw->ctrl) & M00473_CTRL_BITMAP_ENABLE_MSK) ? 562 "enabled " : "disabled ", 563 (ioread32(&fw->ctrl) & M00473_CTRL_BITMAP_FORCE_FREEWHEEL_MODE_MSK) ? 564 "forced " : "", 565 (ioread32(&fw->status) & M00473_STATUS_BITMAP_FREEWHEEL_MODE_MSK) ? 566 "freewheeling " : "video-passthrough "); 567 iowrite32(0xff, &vmr->irq_status); 568 cobalt_info("rx%d: Clock Loss Detection: %s%s\n", rx, 569 (ioread32(&clkloss->ctrl) & M00479_CTRL_BITMAP_ENABLE_MSK) ? 570 "enabled " : "disabled ", 571 (ioread32(&clkloss->status) & M00479_STATUS_BITMAP_CLOCK_MISSING_MSK) ? 572 "clock-missing " : "found-clock "); 573 cobalt_info("rx%d: Packer: %x\n", rx, ioread32(&packer->control)); 574 } 575 576 static int cobalt_log_status(struct file *file, void *priv_fh) 577 { 578 struct cobalt_stream *s = video_drvdata(file); 579 struct cobalt *cobalt = s->cobalt; 580 struct m00514_syncgen_flow_evcnt_regmap __iomem *vo = 581 COBALT_TX_BASE(cobalt); 582 u8 stat; 583 584 cobalt_info("%s", cobalt->hdl_info); 585 cobalt_info("sysctrl: %08x, sysstat: %08x\n", 586 cobalt_g_sysctrl(cobalt), 587 cobalt_g_sysstat(cobalt)); 588 cobalt_info("dma channel: %d, video channel: %d\n", 589 s->dma_channel, s->video_channel); 590 cobalt_pcie_status_show(cobalt); 591 cobalt_cpld_status(cobalt); 592 cobalt_irq_log_status(cobalt); 593 v4l2_subdev_call(s->sd, core, log_status); 594 if (!s->is_output) { 595 cobalt_video_input_status_show(s); 596 return 0; 597 } 598 599 stat = ioread32(&vo->rd_status); 600 601 cobalt_info("tx: status: %s%s\n", 602 (stat & M00514_RD_STATUS_BITMAP_FLOW_CTRL_NO_DATA_ERROR_MSK) ? 603 "no_data " : "", 604 (stat & M00514_RD_STATUS_BITMAP_READY_BUFFER_FULL_MSK) ? 605 "ready_buffer_full " : ""); 606 cobalt_info("tx: evcnt: %d\n", ioread32(&vo->rd_evcnt_count)); 607 return 0; 608 } 609 610 static int cobalt_enum_dv_timings(struct file *file, void *priv_fh, 611 struct v4l2_enum_dv_timings *timings) 612 { 613 struct cobalt_stream *s = video_drvdata(file); 614 615 if (s->input == 1) { 616 if (timings->index) 617 return -EINVAL; 618 memset(timings->reserved, 0, sizeof(timings->reserved)); 619 timings->timings = cea1080p60; 620 return 0; 621 } 622 timings->pad = 0; 623 return v4l2_subdev_call(s->sd, 624 pad, enum_dv_timings, timings); 625 } 626 627 static int cobalt_s_dv_timings(struct file *file, void *priv_fh, 628 struct v4l2_dv_timings *timings) 629 { 630 struct cobalt_stream *s = video_drvdata(file); 631 int err; 632 633 if (s->input == 1) { 634 *timings = cea1080p60; 635 return 0; 636 } 637 638 if (v4l2_match_dv_timings(timings, &s->timings, 0, true)) 639 return 0; 640 641 if (vb2_is_busy(&s->q)) 642 return -EBUSY; 643 644 err = v4l2_subdev_call(s->sd, 645 video, s_dv_timings, timings); 646 if (!err) { 647 s->timings = *timings; 648 s->width = timings->bt.width; 649 s->height = timings->bt.height; 650 s->stride = timings->bt.width * s->bpp; 651 } 652 return err; 653 } 654 655 static int cobalt_g_dv_timings(struct file *file, void *priv_fh, 656 struct v4l2_dv_timings *timings) 657 { 658 struct cobalt_stream *s = video_drvdata(file); 659 660 if (s->input == 1) { 661 *timings = cea1080p60; 662 return 0; 663 } 664 return v4l2_subdev_call(s->sd, 665 video, g_dv_timings, timings); 666 } 667 668 static int cobalt_query_dv_timings(struct file *file, void *priv_fh, 669 struct v4l2_dv_timings *timings) 670 { 671 struct cobalt_stream *s = video_drvdata(file); 672 673 if (s->input == 1) { 674 *timings = cea1080p60; 675 return 0; 676 } 677 return v4l2_subdev_call(s->sd, 678 video, query_dv_timings, timings); 679 } 680 681 static int cobalt_dv_timings_cap(struct file *file, void *priv_fh, 682 struct v4l2_dv_timings_cap *cap) 683 { 684 struct cobalt_stream *s = video_drvdata(file); 685 686 cap->pad = 0; 687 return v4l2_subdev_call(s->sd, 688 pad, dv_timings_cap, cap); 689 } 690 691 static int cobalt_enum_fmt_vid_cap(struct file *file, void *priv_fh, 692 struct v4l2_fmtdesc *f) 693 { 694 switch (f->index) { 695 case 0: 696 strscpy(f->description, "YUV 4:2:2", sizeof(f->description)); 697 f->pixelformat = V4L2_PIX_FMT_YUYV; 698 break; 699 case 1: 700 strscpy(f->description, "RGB24", sizeof(f->description)); 701 f->pixelformat = V4L2_PIX_FMT_RGB24; 702 break; 703 case 2: 704 strscpy(f->description, "RGB32", sizeof(f->description)); 705 f->pixelformat = V4L2_PIX_FMT_BGR32; 706 break; 707 default: 708 return -EINVAL; 709 } 710 711 return 0; 712 } 713 714 static int cobalt_g_fmt_vid_cap(struct file *file, void *priv_fh, 715 struct v4l2_format *f) 716 { 717 struct cobalt_stream *s = video_drvdata(file); 718 struct v4l2_pix_format *pix = &f->fmt.pix; 719 struct v4l2_subdev_format sd_fmt; 720 721 pix->width = s->width; 722 pix->height = s->height; 723 pix->bytesperline = s->stride; 724 pix->field = V4L2_FIELD_NONE; 725 726 if (s->input == 1) { 727 pix->colorspace = V4L2_COLORSPACE_SRGB; 728 } else { 729 sd_fmt.pad = s->pad_source; 730 sd_fmt.which = V4L2_SUBDEV_FORMAT_ACTIVE; 731 v4l2_subdev_call(s->sd, pad, get_fmt, NULL, &sd_fmt); 732 v4l2_fill_pix_format(pix, &sd_fmt.format); 733 } 734 735 pix->pixelformat = s->pixfmt; 736 pix->sizeimage = pix->bytesperline * pix->height; 737 738 return 0; 739 } 740 741 static int cobalt_try_fmt_vid_cap(struct file *file, void *priv_fh, 742 struct v4l2_format *f) 743 { 744 struct cobalt_stream *s = video_drvdata(file); 745 struct v4l2_pix_format *pix = &f->fmt.pix; 746 struct v4l2_subdev_format sd_fmt; 747 748 /* Check for min (QCIF) and max (Full HD) size */ 749 if ((pix->width < 176) || (pix->height < 144)) { 750 pix->width = 176; 751 pix->height = 144; 752 } 753 754 if ((pix->width > 1920) || (pix->height > 1080)) { 755 pix->width = 1920; 756 pix->height = 1080; 757 } 758 759 /* Make width multiple of 4 */ 760 pix->width &= ~0x3; 761 762 /* Make height multiple of 2 */ 763 pix->height &= ~0x1; 764 765 if (s->input == 1) { 766 /* Generator => fixed format only */ 767 pix->width = 1920; 768 pix->height = 1080; 769 pix->colorspace = V4L2_COLORSPACE_SRGB; 770 } else { 771 sd_fmt.pad = s->pad_source; 772 sd_fmt.which = V4L2_SUBDEV_FORMAT_ACTIVE; 773 v4l2_subdev_call(s->sd, pad, get_fmt, NULL, &sd_fmt); 774 v4l2_fill_pix_format(pix, &sd_fmt.format); 775 } 776 777 switch (pix->pixelformat) { 778 case V4L2_PIX_FMT_YUYV: 779 default: 780 pix->bytesperline = max(pix->bytesperline & ~0x3, 781 pix->width * COBALT_BYTES_PER_PIXEL_YUYV); 782 pix->pixelformat = V4L2_PIX_FMT_YUYV; 783 break; 784 case V4L2_PIX_FMT_RGB24: 785 pix->bytesperline = max(pix->bytesperline & ~0x3, 786 pix->width * COBALT_BYTES_PER_PIXEL_RGB24); 787 break; 788 case V4L2_PIX_FMT_BGR32: 789 pix->bytesperline = max(pix->bytesperline & ~0x3, 790 pix->width * COBALT_BYTES_PER_PIXEL_RGB32); 791 break; 792 } 793 794 pix->sizeimage = pix->bytesperline * pix->height; 795 pix->field = V4L2_FIELD_NONE; 796 pix->priv = 0; 797 798 return 0; 799 } 800 801 static int cobalt_s_fmt_vid_cap(struct file *file, void *priv_fh, 802 struct v4l2_format *f) 803 { 804 struct cobalt_stream *s = video_drvdata(file); 805 struct v4l2_pix_format *pix = &f->fmt.pix; 806 807 if (vb2_is_busy(&s->q)) 808 return -EBUSY; 809 810 if (cobalt_try_fmt_vid_cap(file, priv_fh, f)) 811 return -EINVAL; 812 813 s->width = pix->width; 814 s->height = pix->height; 815 s->stride = pix->bytesperline; 816 switch (pix->pixelformat) { 817 case V4L2_PIX_FMT_YUYV: 818 s->bpp = COBALT_BYTES_PER_PIXEL_YUYV; 819 break; 820 case V4L2_PIX_FMT_RGB24: 821 s->bpp = COBALT_BYTES_PER_PIXEL_RGB24; 822 break; 823 case V4L2_PIX_FMT_BGR32: 824 s->bpp = COBALT_BYTES_PER_PIXEL_RGB32; 825 break; 826 default: 827 return -EINVAL; 828 } 829 s->pixfmt = pix->pixelformat; 830 cobalt_enable_input(s); 831 832 return 0; 833 } 834 835 static int cobalt_try_fmt_vid_out(struct file *file, void *priv_fh, 836 struct v4l2_format *f) 837 { 838 struct v4l2_pix_format *pix = &f->fmt.pix; 839 840 /* Check for min (QCIF) and max (Full HD) size */ 841 if ((pix->width < 176) || (pix->height < 144)) { 842 pix->width = 176; 843 pix->height = 144; 844 } 845 846 if ((pix->width > 1920) || (pix->height > 1080)) { 847 pix->width = 1920; 848 pix->height = 1080; 849 } 850 851 /* Make width multiple of 4 */ 852 pix->width &= ~0x3; 853 854 /* Make height multiple of 2 */ 855 pix->height &= ~0x1; 856 857 switch (pix->pixelformat) { 858 case V4L2_PIX_FMT_YUYV: 859 default: 860 pix->bytesperline = max(pix->bytesperline & ~0x3, 861 pix->width * COBALT_BYTES_PER_PIXEL_YUYV); 862 pix->pixelformat = V4L2_PIX_FMT_YUYV; 863 break; 864 case V4L2_PIX_FMT_BGR32: 865 pix->bytesperline = max(pix->bytesperline & ~0x3, 866 pix->width * COBALT_BYTES_PER_PIXEL_RGB32); 867 break; 868 } 869 870 pix->sizeimage = pix->bytesperline * pix->height; 871 pix->field = V4L2_FIELD_NONE; 872 873 return 0; 874 } 875 876 static int cobalt_g_fmt_vid_out(struct file *file, void *priv_fh, 877 struct v4l2_format *f) 878 { 879 struct cobalt_stream *s = video_drvdata(file); 880 struct v4l2_pix_format *pix = &f->fmt.pix; 881 882 pix->width = s->width; 883 pix->height = s->height; 884 pix->bytesperline = s->stride; 885 pix->field = V4L2_FIELD_NONE; 886 pix->pixelformat = s->pixfmt; 887 pix->colorspace = s->colorspace; 888 pix->xfer_func = s->xfer_func; 889 pix->ycbcr_enc = s->ycbcr_enc; 890 pix->quantization = s->quantization; 891 pix->sizeimage = pix->bytesperline * pix->height; 892 893 return 0; 894 } 895 896 static int cobalt_enum_fmt_vid_out(struct file *file, void *priv_fh, 897 struct v4l2_fmtdesc *f) 898 { 899 switch (f->index) { 900 case 0: 901 strscpy(f->description, "YUV 4:2:2", sizeof(f->description)); 902 f->pixelformat = V4L2_PIX_FMT_YUYV; 903 break; 904 case 1: 905 strscpy(f->description, "RGB32", sizeof(f->description)); 906 f->pixelformat = V4L2_PIX_FMT_BGR32; 907 break; 908 default: 909 return -EINVAL; 910 } 911 912 return 0; 913 } 914 915 static int cobalt_s_fmt_vid_out(struct file *file, void *priv_fh, 916 struct v4l2_format *f) 917 { 918 struct cobalt_stream *s = video_drvdata(file); 919 struct v4l2_pix_format *pix = &f->fmt.pix; 920 struct v4l2_subdev_format sd_fmt = { 0 }; 921 u32 code; 922 923 if (cobalt_try_fmt_vid_out(file, priv_fh, f)) 924 return -EINVAL; 925 926 if (vb2_is_busy(&s->q) && (pix->pixelformat != s->pixfmt || 927 pix->width != s->width || pix->height != s->height || 928 pix->bytesperline != s->stride)) 929 return -EBUSY; 930 931 switch (pix->pixelformat) { 932 case V4L2_PIX_FMT_YUYV: 933 s->bpp = COBALT_BYTES_PER_PIXEL_YUYV; 934 code = MEDIA_BUS_FMT_UYVY8_1X16; 935 break; 936 case V4L2_PIX_FMT_BGR32: 937 s->bpp = COBALT_BYTES_PER_PIXEL_RGB32; 938 code = MEDIA_BUS_FMT_RGB888_1X24; 939 break; 940 default: 941 return -EINVAL; 942 } 943 s->width = pix->width; 944 s->height = pix->height; 945 s->stride = pix->bytesperline; 946 s->pixfmt = pix->pixelformat; 947 s->colorspace = pix->colorspace; 948 s->xfer_func = pix->xfer_func; 949 s->ycbcr_enc = pix->ycbcr_enc; 950 s->quantization = pix->quantization; 951 sd_fmt.which = V4L2_SUBDEV_FORMAT_ACTIVE; 952 v4l2_fill_mbus_format(&sd_fmt.format, pix, code); 953 v4l2_subdev_call(s->sd, pad, set_fmt, NULL, &sd_fmt); 954 return 0; 955 } 956 957 static int cobalt_enum_input(struct file *file, void *priv_fh, 958 struct v4l2_input *inp) 959 { 960 struct cobalt_stream *s = video_drvdata(file); 961 962 if (inp->index > 1) 963 return -EINVAL; 964 if (inp->index == 0) 965 snprintf(inp->name, sizeof(inp->name), 966 "HDMI-%d", s->video_channel); 967 else 968 snprintf(inp->name, sizeof(inp->name), 969 "Generator-%d", s->video_channel); 970 inp->type = V4L2_INPUT_TYPE_CAMERA; 971 inp->capabilities = V4L2_IN_CAP_DV_TIMINGS; 972 if (inp->index == 1) 973 return 0; 974 return v4l2_subdev_call(s->sd, 975 video, g_input_status, &inp->status); 976 } 977 978 static int cobalt_g_input(struct file *file, void *priv_fh, unsigned int *i) 979 { 980 struct cobalt_stream *s = video_drvdata(file); 981 982 *i = s->input; 983 return 0; 984 } 985 986 static int cobalt_s_input(struct file *file, void *priv_fh, unsigned int i) 987 { 988 struct cobalt_stream *s = video_drvdata(file); 989 990 if (i >= 2) 991 return -EINVAL; 992 if (vb2_is_busy(&s->q)) 993 return -EBUSY; 994 s->input = i; 995 996 cobalt_enable_input(s); 997 998 if (s->input == 1) /* Test Pattern Generator */ 999 return 0; 1000 1001 return v4l2_subdev_call(s->sd, video, s_routing, 1002 ADV76XX_PAD_HDMI_PORT_A, 0, 0); 1003 } 1004 1005 static int cobalt_enum_output(struct file *file, void *priv_fh, 1006 struct v4l2_output *out) 1007 { 1008 if (out->index) 1009 return -EINVAL; 1010 snprintf(out->name, sizeof(out->name), "HDMI-%d", out->index); 1011 out->type = V4L2_OUTPUT_TYPE_ANALOG; 1012 out->capabilities = V4L2_OUT_CAP_DV_TIMINGS; 1013 return 0; 1014 } 1015 1016 static int cobalt_g_output(struct file *file, void *priv_fh, unsigned int *i) 1017 { 1018 *i = 0; 1019 return 0; 1020 } 1021 1022 static int cobalt_s_output(struct file *file, void *priv_fh, unsigned int i) 1023 { 1024 return i ? -EINVAL : 0; 1025 } 1026 1027 static int cobalt_g_edid(struct file *file, void *fh, struct v4l2_edid *edid) 1028 { 1029 struct cobalt_stream *s = video_drvdata(file); 1030 u32 pad = edid->pad; 1031 int ret; 1032 1033 if (edid->pad >= (s->is_output ? 1 : 2)) 1034 return -EINVAL; 1035 edid->pad = 0; 1036 ret = v4l2_subdev_call(s->sd, pad, get_edid, edid); 1037 edid->pad = pad; 1038 return ret; 1039 } 1040 1041 static int cobalt_s_edid(struct file *file, void *fh, struct v4l2_edid *edid) 1042 { 1043 struct cobalt_stream *s = video_drvdata(file); 1044 u32 pad = edid->pad; 1045 int ret; 1046 1047 if (edid->pad >= 2) 1048 return -EINVAL; 1049 edid->pad = 0; 1050 ret = v4l2_subdev_call(s->sd, pad, set_edid, edid); 1051 edid->pad = pad; 1052 return ret; 1053 } 1054 1055 static int cobalt_subscribe_event(struct v4l2_fh *fh, 1056 const struct v4l2_event_subscription *sub) 1057 { 1058 switch (sub->type) { 1059 case V4L2_EVENT_SOURCE_CHANGE: 1060 return v4l2_event_subscribe(fh, sub, 4, NULL); 1061 } 1062 return v4l2_ctrl_subscribe_event(fh, sub); 1063 } 1064 1065 static int cobalt_g_parm(struct file *file, void *fh, struct v4l2_streamparm *a) 1066 { 1067 struct cobalt_stream *s = video_drvdata(file); 1068 struct v4l2_fract fps; 1069 1070 if (a->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) 1071 return -EINVAL; 1072 1073 fps = v4l2_calc_timeperframe(&s->timings); 1074 a->parm.capture.timeperframe.numerator = fps.numerator; 1075 a->parm.capture.timeperframe.denominator = fps.denominator; 1076 a->parm.capture.readbuffers = 3; 1077 return 0; 1078 } 1079 1080 static int cobalt_g_pixelaspect(struct file *file, void *fh, 1081 int type, struct v4l2_fract *f) 1082 { 1083 struct cobalt_stream *s = video_drvdata(file); 1084 struct v4l2_dv_timings timings; 1085 int err = 0; 1086 1087 if (type != V4L2_BUF_TYPE_VIDEO_CAPTURE) 1088 return -EINVAL; 1089 1090 if (s->input == 1) 1091 timings = cea1080p60; 1092 else 1093 err = v4l2_subdev_call(s->sd, video, g_dv_timings, &timings); 1094 if (!err) 1095 *f = v4l2_dv_timings_aspect_ratio(&timings); 1096 return err; 1097 } 1098 1099 static int cobalt_g_selection(struct file *file, void *fh, 1100 struct v4l2_selection *sel) 1101 { 1102 struct cobalt_stream *s = video_drvdata(file); 1103 struct v4l2_dv_timings timings; 1104 int err = 0; 1105 1106 if (sel->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) 1107 return -EINVAL; 1108 1109 if (s->input == 1) 1110 timings = cea1080p60; 1111 else 1112 err = v4l2_subdev_call(s->sd, video, g_dv_timings, &timings); 1113 1114 if (err) 1115 return err; 1116 1117 switch (sel->target) { 1118 case V4L2_SEL_TGT_CROP_BOUNDS: 1119 case V4L2_SEL_TGT_CROP_DEFAULT: 1120 sel->r.top = 0; 1121 sel->r.left = 0; 1122 sel->r.width = timings.bt.width; 1123 sel->r.height = timings.bt.height; 1124 break; 1125 default: 1126 return -EINVAL; 1127 } 1128 return 0; 1129 } 1130 1131 static const struct v4l2_ioctl_ops cobalt_ioctl_ops = { 1132 .vidioc_querycap = cobalt_querycap, 1133 .vidioc_g_parm = cobalt_g_parm, 1134 .vidioc_log_status = cobalt_log_status, 1135 .vidioc_streamon = vb2_ioctl_streamon, 1136 .vidioc_streamoff = vb2_ioctl_streamoff, 1137 .vidioc_g_pixelaspect = cobalt_g_pixelaspect, 1138 .vidioc_g_selection = cobalt_g_selection, 1139 .vidioc_enum_input = cobalt_enum_input, 1140 .vidioc_g_input = cobalt_g_input, 1141 .vidioc_s_input = cobalt_s_input, 1142 .vidioc_enum_fmt_vid_cap = cobalt_enum_fmt_vid_cap, 1143 .vidioc_g_fmt_vid_cap = cobalt_g_fmt_vid_cap, 1144 .vidioc_s_fmt_vid_cap = cobalt_s_fmt_vid_cap, 1145 .vidioc_try_fmt_vid_cap = cobalt_try_fmt_vid_cap, 1146 .vidioc_enum_output = cobalt_enum_output, 1147 .vidioc_g_output = cobalt_g_output, 1148 .vidioc_s_output = cobalt_s_output, 1149 .vidioc_enum_fmt_vid_out = cobalt_enum_fmt_vid_out, 1150 .vidioc_g_fmt_vid_out = cobalt_g_fmt_vid_out, 1151 .vidioc_s_fmt_vid_out = cobalt_s_fmt_vid_out, 1152 .vidioc_try_fmt_vid_out = cobalt_try_fmt_vid_out, 1153 .vidioc_s_dv_timings = cobalt_s_dv_timings, 1154 .vidioc_g_dv_timings = cobalt_g_dv_timings, 1155 .vidioc_query_dv_timings = cobalt_query_dv_timings, 1156 .vidioc_enum_dv_timings = cobalt_enum_dv_timings, 1157 .vidioc_dv_timings_cap = cobalt_dv_timings_cap, 1158 .vidioc_g_edid = cobalt_g_edid, 1159 .vidioc_s_edid = cobalt_s_edid, 1160 .vidioc_subscribe_event = cobalt_subscribe_event, 1161 .vidioc_unsubscribe_event = v4l2_event_unsubscribe, 1162 .vidioc_reqbufs = vb2_ioctl_reqbufs, 1163 .vidioc_create_bufs = vb2_ioctl_create_bufs, 1164 .vidioc_querybuf = vb2_ioctl_querybuf, 1165 .vidioc_qbuf = vb2_ioctl_qbuf, 1166 .vidioc_dqbuf = vb2_ioctl_dqbuf, 1167 .vidioc_expbuf = vb2_ioctl_expbuf, 1168 #ifdef CONFIG_VIDEO_ADV_DEBUG 1169 .vidioc_g_register = cobalt_g_register, 1170 .vidioc_s_register = cobalt_s_register, 1171 #endif 1172 }; 1173 1174 static const struct v4l2_ioctl_ops cobalt_ioctl_empty_ops = { 1175 #ifdef CONFIG_VIDEO_ADV_DEBUG 1176 .vidioc_g_register = cobalt_g_register, 1177 .vidioc_s_register = cobalt_s_register, 1178 #endif 1179 }; 1180 1181 /* Register device nodes */ 1182 1183 static const struct v4l2_file_operations cobalt_fops = { 1184 .owner = THIS_MODULE, 1185 .open = v4l2_fh_open, 1186 .unlocked_ioctl = video_ioctl2, 1187 .release = vb2_fop_release, 1188 .poll = vb2_fop_poll, 1189 .mmap = vb2_fop_mmap, 1190 .read = vb2_fop_read, 1191 }; 1192 1193 static const struct v4l2_file_operations cobalt_out_fops = { 1194 .owner = THIS_MODULE, 1195 .open = v4l2_fh_open, 1196 .unlocked_ioctl = video_ioctl2, 1197 .release = vb2_fop_release, 1198 .poll = vb2_fop_poll, 1199 .mmap = vb2_fop_mmap, 1200 .write = vb2_fop_write, 1201 }; 1202 1203 static const struct v4l2_file_operations cobalt_empty_fops = { 1204 .owner = THIS_MODULE, 1205 .open = v4l2_fh_open, 1206 .unlocked_ioctl = video_ioctl2, 1207 .release = v4l2_fh_release, 1208 }; 1209 1210 static int cobalt_node_register(struct cobalt *cobalt, int node) 1211 { 1212 static const struct v4l2_dv_timings dv1080p60 = 1213 V4L2_DV_BT_CEA_1920X1080P60; 1214 struct cobalt_stream *s = cobalt->streams + node; 1215 struct video_device *vdev = &s->vdev; 1216 struct vb2_queue *q = &s->q; 1217 int ret; 1218 1219 mutex_init(&s->lock); 1220 spin_lock_init(&s->irqlock); 1221 1222 snprintf(vdev->name, sizeof(vdev->name), 1223 "%s-%d", cobalt->v4l2_dev.name, node); 1224 s->width = 1920; 1225 /* Audio frames are just 4 lines of 1920 bytes */ 1226 s->height = s->is_audio ? 4 : 1080; 1227 1228 if (s->is_audio) { 1229 s->bpp = 1; 1230 s->pixfmt = V4L2_PIX_FMT_GREY; 1231 } else if (s->is_output) { 1232 s->bpp = COBALT_BYTES_PER_PIXEL_RGB32; 1233 s->pixfmt = V4L2_PIX_FMT_BGR32; 1234 } else { 1235 s->bpp = COBALT_BYTES_PER_PIXEL_YUYV; 1236 s->pixfmt = V4L2_PIX_FMT_YUYV; 1237 } 1238 s->colorspace = V4L2_COLORSPACE_SRGB; 1239 s->stride = s->width * s->bpp; 1240 1241 if (!s->is_audio) { 1242 if (s->is_dummy) 1243 cobalt_warn("Setting up dummy video node %d\n", node); 1244 vdev->v4l2_dev = &cobalt->v4l2_dev; 1245 if (s->is_dummy) 1246 vdev->fops = &cobalt_empty_fops; 1247 else 1248 vdev->fops = s->is_output ? &cobalt_out_fops : 1249 &cobalt_fops; 1250 vdev->release = video_device_release_empty; 1251 vdev->vfl_dir = s->is_output ? VFL_DIR_TX : VFL_DIR_RX; 1252 vdev->lock = &s->lock; 1253 if (s->sd) 1254 vdev->ctrl_handler = s->sd->ctrl_handler; 1255 s->timings = dv1080p60; 1256 v4l2_subdev_call(s->sd, video, s_dv_timings, &s->timings); 1257 if (!s->is_output && s->sd) 1258 cobalt_enable_input(s); 1259 vdev->ioctl_ops = s->is_dummy ? &cobalt_ioctl_empty_ops : 1260 &cobalt_ioctl_ops; 1261 } 1262 1263 INIT_LIST_HEAD(&s->bufs); 1264 q->type = s->is_output ? V4L2_BUF_TYPE_VIDEO_OUTPUT : 1265 V4L2_BUF_TYPE_VIDEO_CAPTURE; 1266 q->io_modes = VB2_MMAP | VB2_USERPTR | VB2_DMABUF; 1267 q->io_modes |= s->is_output ? VB2_WRITE : VB2_READ; 1268 q->drv_priv = s; 1269 q->buf_struct_size = sizeof(struct cobalt_buffer); 1270 q->ops = &cobalt_qops; 1271 q->mem_ops = &vb2_dma_sg_memops; 1272 q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC; 1273 q->min_buffers_needed = 2; 1274 q->lock = &s->lock; 1275 q->dev = &cobalt->pci_dev->dev; 1276 vdev->queue = q; 1277 1278 video_set_drvdata(vdev, s); 1279 ret = vb2_queue_init(q); 1280 if (!s->is_audio && ret == 0) 1281 ret = video_register_device(vdev, VFL_TYPE_GRABBER, -1); 1282 else if (!s->is_dummy) 1283 ret = cobalt_alsa_init(s); 1284 1285 if (ret < 0) { 1286 if (!s->is_audio) 1287 cobalt_err("couldn't register v4l2 device node %d\n", 1288 node); 1289 return ret; 1290 } 1291 cobalt_info("registered node %d\n", node); 1292 return 0; 1293 } 1294 1295 /* Initialize v4l2 variables and register v4l2 devices */ 1296 int cobalt_nodes_register(struct cobalt *cobalt) 1297 { 1298 int node, ret; 1299 1300 /* Setup V4L2 Devices */ 1301 for (node = 0; node < COBALT_NUM_STREAMS; node++) { 1302 ret = cobalt_node_register(cobalt, node); 1303 if (ret) 1304 return ret; 1305 } 1306 return 0; 1307 } 1308 1309 /* Unregister v4l2 devices */ 1310 void cobalt_nodes_unregister(struct cobalt *cobalt) 1311 { 1312 int node; 1313 1314 /* Teardown all streams */ 1315 for (node = 0; node < COBALT_NUM_STREAMS; node++) { 1316 struct cobalt_stream *s = cobalt->streams + node; 1317 struct video_device *vdev = &s->vdev; 1318 1319 if (!s->is_audio) 1320 video_unregister_device(vdev); 1321 else if (!s->is_dummy) 1322 cobalt_alsa_exit(s); 1323 } 1324 } 1325