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 30static const struct v4l2_dv_timings cea1080p60 = V4L2_DV_BT_CEA_1920X1080P60; 31 32/* vb2 DMA streaming ops */ 33 34static 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 52static 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 88static 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 96static 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 106static 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 122static 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 141static 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 199static 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 249static 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 279static 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 340done: 341 s->sequence = 0; 342 cobalt_dma_start_streaming(s); 343 return 0; 344} 345 346static 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 388static 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 423static 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 438static 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 456static 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 465static 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 476static 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 493static 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 571static 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 605static 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 622static 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 650static 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 663static 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 676static 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 686static 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 706static 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; 711 712 pix->width = s->width; 713 pix->height = s->height; 714 pix->bytesperline = s->stride; 715 pix->field = V4L2_FIELD_NONE; 716 717 if (s->input == 1) { 718 pix->colorspace = V4L2_COLORSPACE_SRGB; 719 } else { 720 struct v4l2_subdev_format sd_fmt = { 721 .pad = s->pad_source, 722 .which = V4L2_SUBDEV_FORMAT_ACTIVE, 723 }; 724 725 v4l2_subdev_call(s->sd, pad, get_fmt, NULL, &sd_fmt); 726 v4l2_fill_pix_format(pix, &sd_fmt.format); 727 } 728 729 pix->pixelformat = s->pixfmt; 730 pix->sizeimage = pix->bytesperline * pix->height; 731 732 return 0; 733} 734 735static int cobalt_try_fmt_vid_cap(struct file *file, void *priv_fh, 736 struct v4l2_format *f) 737{ 738 struct cobalt_stream *s = video_drvdata(file); 739 struct v4l2_pix_format *pix = &f->fmt.pix; 740 741 /* Check for min (QCIF) and max (Full HD) size */ 742 if ((pix->width < 176) || (pix->height < 144)) { 743 pix->width = 176; 744 pix->height = 144; 745 } 746 747 if ((pix->width > 1920) || (pix->height > 1080)) { 748 pix->width = 1920; 749 pix->height = 1080; 750 } 751 752 /* Make width multiple of 4 */ 753 pix->width &= ~0x3; 754 755 /* Make height multiple of 2 */ 756 pix->height &= ~0x1; 757 758 if (s->input == 1) { 759 /* Generator => fixed format only */ 760 pix->width = 1920; 761 pix->height = 1080; 762 pix->colorspace = V4L2_COLORSPACE_SRGB; 763 } else { 764 struct v4l2_subdev_format sd_fmt = { 765 .pad = s->pad_source, 766 .which = V4L2_SUBDEV_FORMAT_ACTIVE, 767 }; 768 769 v4l2_subdev_call(s->sd, pad, get_fmt, NULL, &sd_fmt); 770 v4l2_fill_pix_format(pix, &sd_fmt.format); 771 } 772 773 switch (pix->pixelformat) { 774 case V4L2_PIX_FMT_YUYV: 775 default: 776 pix->bytesperline = max(pix->bytesperline & ~0x3, 777 pix->width * COBALT_BYTES_PER_PIXEL_YUYV); 778 pix->pixelformat = V4L2_PIX_FMT_YUYV; 779 break; 780 case V4L2_PIX_FMT_RGB24: 781 pix->bytesperline = max(pix->bytesperline & ~0x3, 782 pix->width * COBALT_BYTES_PER_PIXEL_RGB24); 783 break; 784 case V4L2_PIX_FMT_BGR32: 785 pix->bytesperline = max(pix->bytesperline & ~0x3, 786 pix->width * COBALT_BYTES_PER_PIXEL_RGB32); 787 break; 788 } 789 790 pix->sizeimage = pix->bytesperline * pix->height; 791 pix->field = V4L2_FIELD_NONE; 792 793 return 0; 794} 795 796static int cobalt_s_fmt_vid_cap(struct file *file, void *priv_fh, 797 struct v4l2_format *f) 798{ 799 struct cobalt_stream *s = video_drvdata(file); 800 struct v4l2_pix_format *pix = &f->fmt.pix; 801 802 if (vb2_is_busy(&s->q)) 803 return -EBUSY; 804 805 if (cobalt_try_fmt_vid_cap(file, priv_fh, f)) 806 return -EINVAL; 807 808 s->width = pix->width; 809 s->height = pix->height; 810 s->stride = pix->bytesperline; 811 switch (pix->pixelformat) { 812 case V4L2_PIX_FMT_YUYV: 813 s->bpp = COBALT_BYTES_PER_PIXEL_YUYV; 814 break; 815 case V4L2_PIX_FMT_RGB24: 816 s->bpp = COBALT_BYTES_PER_PIXEL_RGB24; 817 break; 818 case V4L2_PIX_FMT_BGR32: 819 s->bpp = COBALT_BYTES_PER_PIXEL_RGB32; 820 break; 821 default: 822 return -EINVAL; 823 } 824 s->pixfmt = pix->pixelformat; 825 cobalt_enable_input(s); 826 827 return 0; 828} 829 830static int cobalt_try_fmt_vid_out(struct file *file, void *priv_fh, 831 struct v4l2_format *f) 832{ 833 struct v4l2_pix_format *pix = &f->fmt.pix; 834 835 /* Check for min (QCIF) and max (Full HD) size */ 836 if ((pix->width < 176) || (pix->height < 144)) { 837 pix->width = 176; 838 pix->height = 144; 839 } 840 841 if ((pix->width > 1920) || (pix->height > 1080)) { 842 pix->width = 1920; 843 pix->height = 1080; 844 } 845 846 /* Make width multiple of 4 */ 847 pix->width &= ~0x3; 848 849 /* Make height multiple of 2 */ 850 pix->height &= ~0x1; 851 852 switch (pix->pixelformat) { 853 case V4L2_PIX_FMT_YUYV: 854 default: 855 pix->bytesperline = max(pix->bytesperline & ~0x3, 856 pix->width * COBALT_BYTES_PER_PIXEL_YUYV); 857 pix->pixelformat = V4L2_PIX_FMT_YUYV; 858 break; 859 case V4L2_PIX_FMT_BGR32: 860 pix->bytesperline = max(pix->bytesperline & ~0x3, 861 pix->width * COBALT_BYTES_PER_PIXEL_RGB32); 862 break; 863 } 864 865 pix->sizeimage = pix->bytesperline * pix->height; 866 pix->field = V4L2_FIELD_NONE; 867 868 return 0; 869} 870 871static int cobalt_g_fmt_vid_out(struct file *file, void *priv_fh, 872 struct v4l2_format *f) 873{ 874 struct cobalt_stream *s = video_drvdata(file); 875 struct v4l2_pix_format *pix = &f->fmt.pix; 876 877 pix->width = s->width; 878 pix->height = s->height; 879 pix->bytesperline = s->stride; 880 pix->field = V4L2_FIELD_NONE; 881 pix->pixelformat = s->pixfmt; 882 pix->colorspace = s->colorspace; 883 pix->xfer_func = s->xfer_func; 884 pix->ycbcr_enc = s->ycbcr_enc; 885 pix->quantization = s->quantization; 886 pix->sizeimage = pix->bytesperline * pix->height; 887 888 return 0; 889} 890 891static int cobalt_enum_fmt_vid_out(struct file *file, void *priv_fh, 892 struct v4l2_fmtdesc *f) 893{ 894 switch (f->index) { 895 case 0: 896 f->pixelformat = V4L2_PIX_FMT_YUYV; 897 break; 898 case 1: 899 f->pixelformat = V4L2_PIX_FMT_BGR32; 900 break; 901 default: 902 return -EINVAL; 903 } 904 905 return 0; 906} 907 908static int cobalt_s_fmt_vid_out(struct file *file, void *priv_fh, 909 struct v4l2_format *f) 910{ 911 struct cobalt_stream *s = video_drvdata(file); 912 struct v4l2_pix_format *pix = &f->fmt.pix; 913 struct v4l2_subdev_format sd_fmt = { 914 .which = V4L2_SUBDEV_FORMAT_ACTIVE, 915 }; 916 u32 code; 917 918 if (cobalt_try_fmt_vid_out(file, priv_fh, f)) 919 return -EINVAL; 920 921 if (vb2_is_busy(&s->q) && (pix->pixelformat != s->pixfmt || 922 pix->width != s->width || pix->height != s->height || 923 pix->bytesperline != s->stride)) 924 return -EBUSY; 925 926 switch (pix->pixelformat) { 927 case V4L2_PIX_FMT_YUYV: 928 s->bpp = COBALT_BYTES_PER_PIXEL_YUYV; 929 code = MEDIA_BUS_FMT_UYVY8_1X16; 930 break; 931 case V4L2_PIX_FMT_BGR32: 932 s->bpp = COBALT_BYTES_PER_PIXEL_RGB32; 933 code = MEDIA_BUS_FMT_RGB888_1X24; 934 break; 935 default: 936 return -EINVAL; 937 } 938 s->width = pix->width; 939 s->height = pix->height; 940 s->stride = pix->bytesperline; 941 s->pixfmt = pix->pixelformat; 942 s->colorspace = pix->colorspace; 943 s->xfer_func = pix->xfer_func; 944 s->ycbcr_enc = pix->ycbcr_enc; 945 s->quantization = pix->quantization; 946 v4l2_fill_mbus_format(&sd_fmt.format, pix, code); 947 v4l2_subdev_call(s->sd, pad, set_fmt, NULL, &sd_fmt); 948 return 0; 949} 950 951static int cobalt_enum_input(struct file *file, void *priv_fh, 952 struct v4l2_input *inp) 953{ 954 struct cobalt_stream *s = video_drvdata(file); 955 956 if (inp->index > 1) 957 return -EINVAL; 958 if (inp->index == 0) 959 snprintf(inp->name, sizeof(inp->name), 960 "HDMI-%d", s->video_channel); 961 else 962 snprintf(inp->name, sizeof(inp->name), 963 "Generator-%d", s->video_channel); 964 inp->type = V4L2_INPUT_TYPE_CAMERA; 965 inp->capabilities = V4L2_IN_CAP_DV_TIMINGS; 966 if (inp->index == 1) 967 return 0; 968 return v4l2_subdev_call(s->sd, 969 video, g_input_status, &inp->status); 970} 971 972static int cobalt_g_input(struct file *file, void *priv_fh, unsigned int *i) 973{ 974 struct cobalt_stream *s = video_drvdata(file); 975 976 *i = s->input; 977 return 0; 978} 979 980static int cobalt_s_input(struct file *file, void *priv_fh, unsigned int i) 981{ 982 struct cobalt_stream *s = video_drvdata(file); 983 984 if (i >= 2) 985 return -EINVAL; 986 if (vb2_is_busy(&s->q)) 987 return -EBUSY; 988 s->input = i; 989 990 cobalt_enable_input(s); 991 992 if (s->input == 1) /* Test Pattern Generator */ 993 return 0; 994 995 return v4l2_subdev_call(s->sd, video, s_routing, 996 ADV76XX_PAD_HDMI_PORT_A, 0, 0); 997} 998 999static int cobalt_enum_output(struct file *file, void *priv_fh, 1000 struct v4l2_output *out) 1001{ 1002 if (out->index) 1003 return -EINVAL; 1004 snprintf(out->name, sizeof(out->name), "HDMI-%d", out->index); 1005 out->type = V4L2_OUTPUT_TYPE_ANALOG; 1006 out->capabilities = V4L2_OUT_CAP_DV_TIMINGS; 1007 return 0; 1008} 1009 1010static int cobalt_g_output(struct file *file, void *priv_fh, unsigned int *i) 1011{ 1012 *i = 0; 1013 return 0; 1014} 1015 1016static int cobalt_s_output(struct file *file, void *priv_fh, unsigned int i) 1017{ 1018 return i ? -EINVAL : 0; 1019} 1020 1021static int cobalt_g_edid(struct file *file, void *fh, struct v4l2_edid *edid) 1022{ 1023 struct cobalt_stream *s = video_drvdata(file); 1024 u32 pad = edid->pad; 1025 int ret; 1026 1027 if (edid->pad >= (s->is_output ? 1 : 2)) 1028 return -EINVAL; 1029 edid->pad = 0; 1030 ret = v4l2_subdev_call(s->sd, pad, get_edid, edid); 1031 edid->pad = pad; 1032 return ret; 1033} 1034 1035static int cobalt_s_edid(struct file *file, void *fh, struct v4l2_edid *edid) 1036{ 1037 struct cobalt_stream *s = video_drvdata(file); 1038 u32 pad = edid->pad; 1039 int ret; 1040 1041 if (edid->pad >= 2) 1042 return -EINVAL; 1043 edid->pad = 0; 1044 ret = v4l2_subdev_call(s->sd, pad, set_edid, edid); 1045 edid->pad = pad; 1046 return ret; 1047} 1048 1049static int cobalt_subscribe_event(struct v4l2_fh *fh, 1050 const struct v4l2_event_subscription *sub) 1051{ 1052 switch (sub->type) { 1053 case V4L2_EVENT_SOURCE_CHANGE: 1054 return v4l2_event_subscribe(fh, sub, 4, NULL); 1055 } 1056 return v4l2_ctrl_subscribe_event(fh, sub); 1057} 1058 1059static int cobalt_g_parm(struct file *file, void *fh, struct v4l2_streamparm *a) 1060{ 1061 struct cobalt_stream *s = video_drvdata(file); 1062 struct v4l2_fract fps; 1063 1064 if (a->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) 1065 return -EINVAL; 1066 1067 fps = v4l2_calc_timeperframe(&s->timings); 1068 a->parm.capture.timeperframe.numerator = fps.numerator; 1069 a->parm.capture.timeperframe.denominator = fps.denominator; 1070 a->parm.capture.readbuffers = 3; 1071 return 0; 1072} 1073 1074static int cobalt_g_pixelaspect(struct file *file, void *fh, 1075 int type, struct v4l2_fract *f) 1076{ 1077 struct cobalt_stream *s = video_drvdata(file); 1078 struct v4l2_dv_timings timings; 1079 int err = 0; 1080 1081 if (type != V4L2_BUF_TYPE_VIDEO_CAPTURE) 1082 return -EINVAL; 1083 1084 if (s->input == 1) 1085 timings = cea1080p60; 1086 else 1087 err = v4l2_subdev_call(s->sd, video, g_dv_timings, &timings); 1088 if (!err) 1089 *f = v4l2_dv_timings_aspect_ratio(&timings); 1090 return err; 1091} 1092 1093static int cobalt_g_selection(struct file *file, void *fh, 1094 struct v4l2_selection *sel) 1095{ 1096 struct cobalt_stream *s = video_drvdata(file); 1097 struct v4l2_dv_timings timings; 1098 int err = 0; 1099 1100 if (sel->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) 1101 return -EINVAL; 1102 1103 if (s->input == 1) 1104 timings = cea1080p60; 1105 else 1106 err = v4l2_subdev_call(s->sd, video, g_dv_timings, &timings); 1107 1108 if (err) 1109 return err; 1110 1111 switch (sel->target) { 1112 case V4L2_SEL_TGT_CROP_BOUNDS: 1113 case V4L2_SEL_TGT_CROP_DEFAULT: 1114 sel->r.top = 0; 1115 sel->r.left = 0; 1116 sel->r.width = timings.bt.width; 1117 sel->r.height = timings.bt.height; 1118 break; 1119 default: 1120 return -EINVAL; 1121 } 1122 return 0; 1123} 1124 1125static const struct v4l2_ioctl_ops cobalt_ioctl_ops = { 1126 .vidioc_querycap = cobalt_querycap, 1127 .vidioc_g_parm = cobalt_g_parm, 1128 .vidioc_log_status = cobalt_log_status, 1129 .vidioc_streamon = vb2_ioctl_streamon, 1130 .vidioc_streamoff = vb2_ioctl_streamoff, 1131 .vidioc_g_pixelaspect = cobalt_g_pixelaspect, 1132 .vidioc_g_selection = cobalt_g_selection, 1133 .vidioc_enum_input = cobalt_enum_input, 1134 .vidioc_g_input = cobalt_g_input, 1135 .vidioc_s_input = cobalt_s_input, 1136 .vidioc_enum_fmt_vid_cap = cobalt_enum_fmt_vid_cap, 1137 .vidioc_g_fmt_vid_cap = cobalt_g_fmt_vid_cap, 1138 .vidioc_s_fmt_vid_cap = cobalt_s_fmt_vid_cap, 1139 .vidioc_try_fmt_vid_cap = cobalt_try_fmt_vid_cap, 1140 .vidioc_enum_output = cobalt_enum_output, 1141 .vidioc_g_output = cobalt_g_output, 1142 .vidioc_s_output = cobalt_s_output, 1143 .vidioc_enum_fmt_vid_out = cobalt_enum_fmt_vid_out, 1144 .vidioc_g_fmt_vid_out = cobalt_g_fmt_vid_out, 1145 .vidioc_s_fmt_vid_out = cobalt_s_fmt_vid_out, 1146 .vidioc_try_fmt_vid_out = cobalt_try_fmt_vid_out, 1147 .vidioc_s_dv_timings = cobalt_s_dv_timings, 1148 .vidioc_g_dv_timings = cobalt_g_dv_timings, 1149 .vidioc_query_dv_timings = cobalt_query_dv_timings, 1150 .vidioc_enum_dv_timings = cobalt_enum_dv_timings, 1151 .vidioc_dv_timings_cap = cobalt_dv_timings_cap, 1152 .vidioc_g_edid = cobalt_g_edid, 1153 .vidioc_s_edid = cobalt_s_edid, 1154 .vidioc_subscribe_event = cobalt_subscribe_event, 1155 .vidioc_unsubscribe_event = v4l2_event_unsubscribe, 1156 .vidioc_reqbufs = vb2_ioctl_reqbufs, 1157 .vidioc_create_bufs = vb2_ioctl_create_bufs, 1158 .vidioc_querybuf = vb2_ioctl_querybuf, 1159 .vidioc_qbuf = vb2_ioctl_qbuf, 1160 .vidioc_dqbuf = vb2_ioctl_dqbuf, 1161 .vidioc_expbuf = vb2_ioctl_expbuf, 1162#ifdef CONFIG_VIDEO_ADV_DEBUG 1163 .vidioc_g_register = cobalt_g_register, 1164 .vidioc_s_register = cobalt_s_register, 1165#endif 1166}; 1167 1168static const struct v4l2_ioctl_ops cobalt_ioctl_empty_ops = { 1169#ifdef CONFIG_VIDEO_ADV_DEBUG 1170 .vidioc_g_register = cobalt_g_register, 1171 .vidioc_s_register = cobalt_s_register, 1172#endif 1173}; 1174 1175/* Register device nodes */ 1176 1177static const struct v4l2_file_operations cobalt_fops = { 1178 .owner = THIS_MODULE, 1179 .open = v4l2_fh_open, 1180 .unlocked_ioctl = video_ioctl2, 1181 .release = vb2_fop_release, 1182 .poll = vb2_fop_poll, 1183 .mmap = vb2_fop_mmap, 1184 .read = vb2_fop_read, 1185}; 1186 1187static const struct v4l2_file_operations cobalt_out_fops = { 1188 .owner = THIS_MODULE, 1189 .open = v4l2_fh_open, 1190 .unlocked_ioctl = video_ioctl2, 1191 .release = vb2_fop_release, 1192 .poll = vb2_fop_poll, 1193 .mmap = vb2_fop_mmap, 1194 .write = vb2_fop_write, 1195}; 1196 1197static const struct v4l2_file_operations cobalt_empty_fops = { 1198 .owner = THIS_MODULE, 1199 .open = v4l2_fh_open, 1200 .unlocked_ioctl = video_ioctl2, 1201 .release = v4l2_fh_release, 1202}; 1203 1204static int cobalt_node_register(struct cobalt *cobalt, int node) 1205{ 1206 static const struct v4l2_dv_timings dv1080p60 = 1207 V4L2_DV_BT_CEA_1920X1080P60; 1208 struct cobalt_stream *s = cobalt->streams + node; 1209 struct video_device *vdev = &s->vdev; 1210 struct vb2_queue *q = &s->q; 1211 int ret; 1212 1213 mutex_init(&s->lock); 1214 spin_lock_init(&s->irqlock); 1215 1216 snprintf(vdev->name, sizeof(vdev->name), 1217 "%s-%d", cobalt->v4l2_dev.name, node); 1218 s->width = 1920; 1219 /* Audio frames are just 4 lines of 1920 bytes */ 1220 s->height = s->is_audio ? 4 : 1080; 1221 1222 if (s->is_audio) { 1223 s->bpp = 1; 1224 s->pixfmt = V4L2_PIX_FMT_GREY; 1225 } else if (s->is_output) { 1226 s->bpp = COBALT_BYTES_PER_PIXEL_RGB32; 1227 s->pixfmt = V4L2_PIX_FMT_BGR32; 1228 } else { 1229 s->bpp = COBALT_BYTES_PER_PIXEL_YUYV; 1230 s->pixfmt = V4L2_PIX_FMT_YUYV; 1231 } 1232 s->colorspace = V4L2_COLORSPACE_SRGB; 1233 s->stride = s->width * s->bpp; 1234 1235 if (!s->is_audio) { 1236 if (s->is_dummy) 1237 cobalt_warn("Setting up dummy video node %d\n", node); 1238 vdev->v4l2_dev = &cobalt->v4l2_dev; 1239 if (s->is_dummy) 1240 vdev->fops = &cobalt_empty_fops; 1241 else 1242 vdev->fops = s->is_output ? &cobalt_out_fops : 1243 &cobalt_fops; 1244 vdev->release = video_device_release_empty; 1245 vdev->vfl_dir = s->is_output ? VFL_DIR_TX : VFL_DIR_RX; 1246 vdev->lock = &s->lock; 1247 if (s->sd) 1248 vdev->ctrl_handler = s->sd->ctrl_handler; 1249 s->timings = dv1080p60; 1250 v4l2_subdev_call(s->sd, video, s_dv_timings, &s->timings); 1251 if (!s->is_output && s->sd) 1252 cobalt_enable_input(s); 1253 vdev->ioctl_ops = s->is_dummy ? &cobalt_ioctl_empty_ops : 1254 &cobalt_ioctl_ops; 1255 } 1256 1257 INIT_LIST_HEAD(&s->bufs); 1258 q->type = s->is_output ? V4L2_BUF_TYPE_VIDEO_OUTPUT : 1259 V4L2_BUF_TYPE_VIDEO_CAPTURE; 1260 q->io_modes = VB2_MMAP | VB2_USERPTR | VB2_DMABUF; 1261 q->io_modes |= s->is_output ? VB2_WRITE : VB2_READ; 1262 q->drv_priv = s; 1263 q->buf_struct_size = sizeof(struct cobalt_buffer); 1264 q->ops = &cobalt_qops; 1265 q->mem_ops = &vb2_dma_sg_memops; 1266 q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC; 1267 q->min_buffers_needed = 2; 1268 q->lock = &s->lock; 1269 q->dev = &cobalt->pci_dev->dev; 1270 vdev->queue = q; 1271 vdev->device_caps = V4L2_CAP_STREAMING | V4L2_CAP_READWRITE; 1272 if (s->is_output) 1273 vdev->device_caps |= V4L2_CAP_VIDEO_OUTPUT; 1274 else 1275 vdev->device_caps |= V4L2_CAP_VIDEO_CAPTURE; 1276 1277 video_set_drvdata(vdev, s); 1278 ret = vb2_queue_init(q); 1279 if (!s->is_audio && ret == 0) 1280 ret = video_register_device(vdev, VFL_TYPE_VIDEO, -1); 1281 else if (!s->is_dummy) 1282 ret = cobalt_alsa_init(s); 1283 1284 if (ret < 0) { 1285 if (!s->is_audio) 1286 cobalt_err("couldn't register v4l2 device node %d\n", 1287 node); 1288 return ret; 1289 } 1290 cobalt_info("registered node %d\n", node); 1291 return 0; 1292} 1293 1294/* Initialize v4l2 variables and register v4l2 devices */ 1295int cobalt_nodes_register(struct cobalt *cobalt) 1296{ 1297 int node, ret; 1298 1299 /* Setup V4L2 Devices */ 1300 for (node = 0; node < COBALT_NUM_STREAMS; node++) { 1301 ret = cobalt_node_register(cobalt, node); 1302 if (ret) 1303 return ret; 1304 } 1305 return 0; 1306} 1307 1308/* Unregister v4l2 devices */ 1309void cobalt_nodes_unregister(struct cobalt *cobalt) 1310{ 1311 int node; 1312 1313 /* Teardown all streams */ 1314 for (node = 0; node < COBALT_NUM_STREAMS; node++) { 1315 struct cobalt_stream *s = cobalt->streams + node; 1316 struct video_device *vdev = &s->vdev; 1317 1318 if (!s->is_audio) 1319 video_unregister_device(vdev); 1320 else if (!s->is_dummy) 1321 cobalt_alsa_exit(s); 1322 } 1323} 1324