1/* 2 * Coda multi-standard codec IP 3 * 4 * Copyright (C) 2012 Vista Silicon S.L. 5 * Javier Martin, <javier.martin@vista-silicon.com> 6 * Xavier Duret 7 * 8 * This program is free software; you can redistribute it and/or modify 9 * it under the terms of the GNU General Public License as published by 10 * the Free Software Foundation; either version 2 of the License, or 11 * (at your option) any later version. 12 */ 13 14#include <linux/clk.h> 15#include <linux/debugfs.h> 16#include <linux/delay.h> 17#include <linux/firmware.h> 18#include <linux/gcd.h> 19#include <linux/genalloc.h> 20#include <linux/interrupt.h> 21#include <linux/io.h> 22#include <linux/irq.h> 23#include <linux/kfifo.h> 24#include <linux/module.h> 25#include <linux/of_device.h> 26#include <linux/platform_device.h> 27#include <linux/pm_runtime.h> 28#include <linux/slab.h> 29#include <linux/videodev2.h> 30#include <linux/of.h> 31#include <linux/platform_data/coda.h> 32#include <linux/reset.h> 33 34#include <media/v4l2-ctrls.h> 35#include <media/v4l2-device.h> 36#include <media/v4l2-event.h> 37#include <media/v4l2-ioctl.h> 38#include <media/v4l2-mem2mem.h> 39#include <media/videobuf2-v4l2.h> 40#include <media/videobuf2-dma-contig.h> 41#include <media/videobuf2-vmalloc.h> 42 43#include "coda.h" 44 45#define CODA_NAME "coda" 46 47#define CODADX6_MAX_INSTANCES 4 48#define CODA_MAX_FORMATS 4 49 50#define CODA_ISRAM_SIZE (2048 * 2) 51 52#define MIN_W 176 53#define MIN_H 144 54 55#define S_ALIGN 1 /* multiple of 2 */ 56#define W_ALIGN 1 /* multiple of 2 */ 57#define H_ALIGN 1 /* multiple of 2 */ 58 59#define fh_to_ctx(__fh) container_of(__fh, struct coda_ctx, fh) 60 61int coda_debug; 62module_param(coda_debug, int, 0644); 63MODULE_PARM_DESC(coda_debug, "Debug level (0-2)"); 64 65static int disable_tiling; 66module_param(disable_tiling, int, 0644); 67MODULE_PARM_DESC(disable_tiling, "Disable tiled frame buffers"); 68 69void coda_write(struct coda_dev *dev, u32 data, u32 reg) 70{ 71 v4l2_dbg(2, coda_debug, &dev->v4l2_dev, 72 "%s: data=0x%x, reg=0x%x\n", __func__, data, reg); 73 writel(data, dev->regs_base + reg); 74} 75 76unsigned int coda_read(struct coda_dev *dev, u32 reg) 77{ 78 u32 data; 79 80 data = readl(dev->regs_base + reg); 81 v4l2_dbg(2, coda_debug, &dev->v4l2_dev, 82 "%s: data=0x%x, reg=0x%x\n", __func__, data, reg); 83 return data; 84} 85 86void coda_write_base(struct coda_ctx *ctx, struct coda_q_data *q_data, 87 struct vb2_v4l2_buffer *buf, unsigned int reg_y) 88{ 89 u32 base_y = vb2_dma_contig_plane_dma_addr(&buf->vb2_buf, 0); 90 u32 base_cb, base_cr; 91 92 switch (q_data->fourcc) { 93 case V4L2_PIX_FMT_NV12: 94 case V4L2_PIX_FMT_YUV420: 95 default: 96 base_cb = base_y + q_data->bytesperline * q_data->height; 97 base_cr = base_cb + q_data->bytesperline * q_data->height / 4; 98 break; 99 case V4L2_PIX_FMT_YVU420: 100 /* Switch Cb and Cr for YVU420 format */ 101 base_cr = base_y + q_data->bytesperline * q_data->height; 102 base_cb = base_cr + q_data->bytesperline * q_data->height / 4; 103 break; 104 case V4L2_PIX_FMT_YUV422P: 105 base_cb = base_y + q_data->bytesperline * q_data->height; 106 base_cr = base_cb + q_data->bytesperline * q_data->height / 2; 107 } 108 109 coda_write(ctx->dev, base_y, reg_y); 110 coda_write(ctx->dev, base_cb, reg_y + 4); 111 coda_write(ctx->dev, base_cr, reg_y + 8); 112} 113 114#define CODA_CODEC(mode, src_fourcc, dst_fourcc, max_w, max_h) \ 115 { mode, src_fourcc, dst_fourcc, max_w, max_h } 116 117/* 118 * Arrays of codecs supported by each given version of Coda: 119 * i.MX27 -> codadx6 120 * i.MX5x -> coda7 121 * i.MX6 -> coda960 122 * Use V4L2_PIX_FMT_YUV420 as placeholder for all supported YUV 4:2:0 variants 123 */ 124static const struct coda_codec codadx6_codecs[] = { 125 CODA_CODEC(CODADX6_MODE_ENCODE_H264, V4L2_PIX_FMT_YUV420, V4L2_PIX_FMT_H264, 720, 576), 126 CODA_CODEC(CODADX6_MODE_ENCODE_MP4, V4L2_PIX_FMT_YUV420, V4L2_PIX_FMT_MPEG4, 720, 576), 127}; 128 129static const struct coda_codec coda7_codecs[] = { 130 CODA_CODEC(CODA7_MODE_ENCODE_H264, V4L2_PIX_FMT_YUV420, V4L2_PIX_FMT_H264, 1280, 720), 131 CODA_CODEC(CODA7_MODE_ENCODE_MP4, V4L2_PIX_FMT_YUV420, V4L2_PIX_FMT_MPEG4, 1280, 720), 132 CODA_CODEC(CODA7_MODE_ENCODE_MJPG, V4L2_PIX_FMT_YUV420, V4L2_PIX_FMT_JPEG, 8192, 8192), 133 CODA_CODEC(CODA7_MODE_DECODE_H264, V4L2_PIX_FMT_H264, V4L2_PIX_FMT_YUV420, 1920, 1088), 134 CODA_CODEC(CODA7_MODE_DECODE_MP4, V4L2_PIX_FMT_MPEG4, V4L2_PIX_FMT_YUV420, 1920, 1088), 135 CODA_CODEC(CODA7_MODE_DECODE_MJPG, V4L2_PIX_FMT_JPEG, V4L2_PIX_FMT_YUV420, 8192, 8192), 136}; 137 138static const struct coda_codec coda9_codecs[] = { 139 CODA_CODEC(CODA9_MODE_ENCODE_H264, V4L2_PIX_FMT_YUV420, V4L2_PIX_FMT_H264, 1920, 1088), 140 CODA_CODEC(CODA9_MODE_ENCODE_MP4, V4L2_PIX_FMT_YUV420, V4L2_PIX_FMT_MPEG4, 1920, 1088), 141 CODA_CODEC(CODA9_MODE_DECODE_H264, V4L2_PIX_FMT_H264, V4L2_PIX_FMT_YUV420, 1920, 1088), 142 CODA_CODEC(CODA9_MODE_DECODE_MP4, V4L2_PIX_FMT_MPEG4, V4L2_PIX_FMT_YUV420, 1920, 1088), 143}; 144 145struct coda_video_device { 146 const char *name; 147 enum coda_inst_type type; 148 const struct coda_context_ops *ops; 149 bool direct; 150 u32 src_formats[CODA_MAX_FORMATS]; 151 u32 dst_formats[CODA_MAX_FORMATS]; 152}; 153 154static const struct coda_video_device coda_bit_encoder = { 155 .name = "coda-encoder", 156 .type = CODA_INST_ENCODER, 157 .ops = &coda_bit_encode_ops, 158 .src_formats = { 159 V4L2_PIX_FMT_NV12, 160 V4L2_PIX_FMT_YUV420, 161 V4L2_PIX_FMT_YVU420, 162 }, 163 .dst_formats = { 164 V4L2_PIX_FMT_H264, 165 V4L2_PIX_FMT_MPEG4, 166 }, 167}; 168 169static const struct coda_video_device coda_bit_jpeg_encoder = { 170 .name = "coda-jpeg-encoder", 171 .type = CODA_INST_ENCODER, 172 .ops = &coda_bit_encode_ops, 173 .src_formats = { 174 V4L2_PIX_FMT_NV12, 175 V4L2_PIX_FMT_YUV420, 176 V4L2_PIX_FMT_YVU420, 177 V4L2_PIX_FMT_YUV422P, 178 }, 179 .dst_formats = { 180 V4L2_PIX_FMT_JPEG, 181 }, 182}; 183 184static const struct coda_video_device coda_bit_decoder = { 185 .name = "coda-decoder", 186 .type = CODA_INST_DECODER, 187 .ops = &coda_bit_decode_ops, 188 .src_formats = { 189 V4L2_PIX_FMT_H264, 190 V4L2_PIX_FMT_MPEG4, 191 }, 192 .dst_formats = { 193 V4L2_PIX_FMT_NV12, 194 V4L2_PIX_FMT_YUV420, 195 V4L2_PIX_FMT_YVU420, 196 }, 197}; 198 199static const struct coda_video_device coda_bit_jpeg_decoder = { 200 .name = "coda-jpeg-decoder", 201 .type = CODA_INST_DECODER, 202 .ops = &coda_bit_decode_ops, 203 .src_formats = { 204 V4L2_PIX_FMT_JPEG, 205 }, 206 .dst_formats = { 207 V4L2_PIX_FMT_NV12, 208 V4L2_PIX_FMT_YUV420, 209 V4L2_PIX_FMT_YVU420, 210 V4L2_PIX_FMT_YUV422P, 211 }, 212}; 213 214static const struct coda_video_device *codadx6_video_devices[] = { 215 &coda_bit_encoder, 216}; 217 218static const struct coda_video_device *coda7_video_devices[] = { 219 &coda_bit_jpeg_encoder, 220 &coda_bit_jpeg_decoder, 221 &coda_bit_encoder, 222 &coda_bit_decoder, 223}; 224 225static const struct coda_video_device *coda9_video_devices[] = { 226 &coda_bit_encoder, 227 &coda_bit_decoder, 228}; 229 230/* 231 * Normalize all supported YUV 4:2:0 formats to the value used in the codec 232 * tables. 233 */ 234static u32 coda_format_normalize_yuv(u32 fourcc) 235{ 236 switch (fourcc) { 237 case V4L2_PIX_FMT_NV12: 238 case V4L2_PIX_FMT_YUV420: 239 case V4L2_PIX_FMT_YVU420: 240 case V4L2_PIX_FMT_YUV422P: 241 return V4L2_PIX_FMT_YUV420; 242 default: 243 return fourcc; 244 } 245} 246 247static const struct coda_codec *coda_find_codec(struct coda_dev *dev, 248 int src_fourcc, int dst_fourcc) 249{ 250 const struct coda_codec *codecs = dev->devtype->codecs; 251 int num_codecs = dev->devtype->num_codecs; 252 int k; 253 254 src_fourcc = coda_format_normalize_yuv(src_fourcc); 255 dst_fourcc = coda_format_normalize_yuv(dst_fourcc); 256 if (src_fourcc == dst_fourcc) 257 return NULL; 258 259 for (k = 0; k < num_codecs; k++) { 260 if (codecs[k].src_fourcc == src_fourcc && 261 codecs[k].dst_fourcc == dst_fourcc) 262 break; 263 } 264 265 if (k == num_codecs) 266 return NULL; 267 268 return &codecs[k]; 269} 270 271static void coda_get_max_dimensions(struct coda_dev *dev, 272 const struct coda_codec *codec, 273 int *max_w, int *max_h) 274{ 275 const struct coda_codec *codecs = dev->devtype->codecs; 276 int num_codecs = dev->devtype->num_codecs; 277 unsigned int w, h; 278 int k; 279 280 if (codec) { 281 w = codec->max_w; 282 h = codec->max_h; 283 } else { 284 for (k = 0, w = 0, h = 0; k < num_codecs; k++) { 285 w = max(w, codecs[k].max_w); 286 h = max(h, codecs[k].max_h); 287 } 288 } 289 290 if (max_w) 291 *max_w = w; 292 if (max_h) 293 *max_h = h; 294} 295 296const struct coda_video_device *to_coda_video_device(struct video_device *vdev) 297{ 298 struct coda_dev *dev = video_get_drvdata(vdev); 299 unsigned int i = vdev - dev->vfd; 300 301 if (i >= dev->devtype->num_vdevs) 302 return NULL; 303 304 return dev->devtype->vdevs[i]; 305} 306 307const char *coda_product_name(int product) 308{ 309 static char buf[9]; 310 311 switch (product) { 312 case CODA_DX6: 313 return "CodaDx6"; 314 case CODA_7541: 315 return "CODA7541"; 316 case CODA_960: 317 return "CODA960"; 318 default: 319 snprintf(buf, sizeof(buf), "(0x%04x)", product); 320 return buf; 321 } 322} 323 324/* 325 * V4L2 ioctl() operations. 326 */ 327static int coda_querycap(struct file *file, void *priv, 328 struct v4l2_capability *cap) 329{ 330 struct coda_ctx *ctx = fh_to_ctx(priv); 331 332 strlcpy(cap->driver, CODA_NAME, sizeof(cap->driver)); 333 strlcpy(cap->card, coda_product_name(ctx->dev->devtype->product), 334 sizeof(cap->card)); 335 strlcpy(cap->bus_info, "platform:" CODA_NAME, sizeof(cap->bus_info)); 336 cap->device_caps = V4L2_CAP_VIDEO_M2M | V4L2_CAP_STREAMING; 337 cap->capabilities = cap->device_caps | V4L2_CAP_DEVICE_CAPS; 338 339 return 0; 340} 341 342static int coda_enum_fmt(struct file *file, void *priv, 343 struct v4l2_fmtdesc *f) 344{ 345 struct video_device *vdev = video_devdata(file); 346 const struct coda_video_device *cvd = to_coda_video_device(vdev); 347 const u32 *formats; 348 349 if (f->type == V4L2_BUF_TYPE_VIDEO_OUTPUT) 350 formats = cvd->src_formats; 351 else if (f->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) 352 formats = cvd->dst_formats; 353 else 354 return -EINVAL; 355 356 if (f->index >= CODA_MAX_FORMATS || formats[f->index] == 0) 357 return -EINVAL; 358 359 f->pixelformat = formats[f->index]; 360 361 return 0; 362} 363 364static int coda_g_fmt(struct file *file, void *priv, 365 struct v4l2_format *f) 366{ 367 struct coda_q_data *q_data; 368 struct coda_ctx *ctx = fh_to_ctx(priv); 369 370 q_data = get_q_data(ctx, f->type); 371 if (!q_data) 372 return -EINVAL; 373 374 f->fmt.pix.field = V4L2_FIELD_NONE; 375 f->fmt.pix.pixelformat = q_data->fourcc; 376 f->fmt.pix.width = q_data->width; 377 f->fmt.pix.height = q_data->height; 378 f->fmt.pix.bytesperline = q_data->bytesperline; 379 380 f->fmt.pix.sizeimage = q_data->sizeimage; 381 if (f->fmt.pix.pixelformat == V4L2_PIX_FMT_JPEG) 382 f->fmt.pix.colorspace = V4L2_COLORSPACE_JPEG; 383 else 384 f->fmt.pix.colorspace = ctx->colorspace; 385 386 return 0; 387} 388 389static int coda_try_pixelformat(struct coda_ctx *ctx, struct v4l2_format *f) 390{ 391 struct coda_q_data *q_data; 392 const u32 *formats; 393 int i; 394 395 if (f->type == V4L2_BUF_TYPE_VIDEO_OUTPUT) 396 formats = ctx->cvd->src_formats; 397 else if (f->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) 398 formats = ctx->cvd->dst_formats; 399 else 400 return -EINVAL; 401 402 for (i = 0; i < CODA_MAX_FORMATS; i++) { 403 if (formats[i] == f->fmt.pix.pixelformat) { 404 f->fmt.pix.pixelformat = formats[i]; 405 return 0; 406 } 407 } 408 409 /* Fall back to currently set pixelformat */ 410 q_data = get_q_data(ctx, f->type); 411 f->fmt.pix.pixelformat = q_data->fourcc; 412 413 return 0; 414} 415 416static unsigned int coda_estimate_sizeimage(struct coda_ctx *ctx, u32 sizeimage, 417 u32 width, u32 height) 418{ 419 /* 420 * This is a rough estimate for sensible compressed buffer 421 * sizes (between 1 and 16 bits per pixel). This could be 422 * improved by better format specific worst case estimates. 423 */ 424 return round_up(clamp(sizeimage, width * height / 8, 425 width * height * 2), PAGE_SIZE); 426} 427 428static int coda_try_fmt(struct coda_ctx *ctx, const struct coda_codec *codec, 429 struct v4l2_format *f) 430{ 431 struct coda_dev *dev = ctx->dev; 432 unsigned int max_w, max_h; 433 enum v4l2_field field; 434 435 field = f->fmt.pix.field; 436 if (field == V4L2_FIELD_ANY) 437 field = V4L2_FIELD_NONE; 438 else if (V4L2_FIELD_NONE != field) 439 return -EINVAL; 440 441 /* V4L2 specification suggests the driver corrects the format struct 442 * if any of the dimensions is unsupported */ 443 f->fmt.pix.field = field; 444 445 coda_get_max_dimensions(dev, codec, &max_w, &max_h); 446 v4l_bound_align_image(&f->fmt.pix.width, MIN_W, max_w, W_ALIGN, 447 &f->fmt.pix.height, MIN_H, max_h, H_ALIGN, 448 S_ALIGN); 449 450 switch (f->fmt.pix.pixelformat) { 451 case V4L2_PIX_FMT_NV12: 452 case V4L2_PIX_FMT_YUV420: 453 case V4L2_PIX_FMT_YVU420: 454 /* 455 * Frame stride must be at least multiple of 8, 456 * but multiple of 16 for h.264 or JPEG 4:2:x 457 */ 458 f->fmt.pix.bytesperline = round_up(f->fmt.pix.width, 16); 459 f->fmt.pix.sizeimage = f->fmt.pix.bytesperline * 460 f->fmt.pix.height * 3 / 2; 461 break; 462 case V4L2_PIX_FMT_YUV422P: 463 f->fmt.pix.bytesperline = round_up(f->fmt.pix.width, 16); 464 f->fmt.pix.sizeimage = f->fmt.pix.bytesperline * 465 f->fmt.pix.height * 2; 466 break; 467 case V4L2_PIX_FMT_JPEG: 468 f->fmt.pix.colorspace = V4L2_COLORSPACE_JPEG; 469 /* fallthrough */ 470 case V4L2_PIX_FMT_H264: 471 case V4L2_PIX_FMT_MPEG4: 472 f->fmt.pix.bytesperline = 0; 473 f->fmt.pix.sizeimage = coda_estimate_sizeimage(ctx, 474 f->fmt.pix.sizeimage, 475 f->fmt.pix.width, 476 f->fmt.pix.height); 477 break; 478 default: 479 BUG(); 480 } 481 482 return 0; 483} 484 485static int coda_try_fmt_vid_cap(struct file *file, void *priv, 486 struct v4l2_format *f) 487{ 488 struct coda_ctx *ctx = fh_to_ctx(priv); 489 const struct coda_q_data *q_data_src; 490 const struct coda_codec *codec; 491 struct vb2_queue *src_vq; 492 int ret; 493 494 ret = coda_try_pixelformat(ctx, f); 495 if (ret < 0) 496 return ret; 497 498 q_data_src = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_OUTPUT); 499 500 /* 501 * If the source format is already fixed, only allow the same output 502 * resolution 503 */ 504 src_vq = v4l2_m2m_get_vq(ctx->fh.m2m_ctx, V4L2_BUF_TYPE_VIDEO_OUTPUT); 505 if (vb2_is_streaming(src_vq)) { 506 f->fmt.pix.width = q_data_src->width; 507 f->fmt.pix.height = q_data_src->height; 508 } 509 510 f->fmt.pix.colorspace = ctx->colorspace; 511 512 q_data_src = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_OUTPUT); 513 codec = coda_find_codec(ctx->dev, q_data_src->fourcc, 514 f->fmt.pix.pixelformat); 515 if (!codec) 516 return -EINVAL; 517 518 ret = coda_try_fmt(ctx, codec, f); 519 if (ret < 0) 520 return ret; 521 522 /* The h.264 decoder only returns complete 16x16 macroblocks */ 523 if (codec && codec->src_fourcc == V4L2_PIX_FMT_H264) { 524 f->fmt.pix.width = f->fmt.pix.width; 525 f->fmt.pix.height = round_up(f->fmt.pix.height, 16); 526 f->fmt.pix.bytesperline = round_up(f->fmt.pix.width, 16); 527 f->fmt.pix.sizeimage = f->fmt.pix.bytesperline * 528 f->fmt.pix.height * 3 / 2; 529 } 530 531 return 0; 532} 533 534static int coda_try_fmt_vid_out(struct file *file, void *priv, 535 struct v4l2_format *f) 536{ 537 struct coda_ctx *ctx = fh_to_ctx(priv); 538 struct coda_dev *dev = ctx->dev; 539 const struct coda_q_data *q_data_dst; 540 const struct coda_codec *codec; 541 int ret; 542 543 ret = coda_try_pixelformat(ctx, f); 544 if (ret < 0) 545 return ret; 546 547 switch (f->fmt.pix.colorspace) { 548 case V4L2_COLORSPACE_REC709: 549 case V4L2_COLORSPACE_JPEG: 550 break; 551 default: 552 if (f->fmt.pix.pixelformat == V4L2_PIX_FMT_JPEG) 553 f->fmt.pix.colorspace = V4L2_COLORSPACE_JPEG; 554 else 555 f->fmt.pix.colorspace = V4L2_COLORSPACE_REC709; 556 } 557 558 q_data_dst = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_CAPTURE); 559 codec = coda_find_codec(dev, f->fmt.pix.pixelformat, q_data_dst->fourcc); 560 561 return coda_try_fmt(ctx, codec, f); 562} 563 564static int coda_s_fmt(struct coda_ctx *ctx, struct v4l2_format *f) 565{ 566 struct coda_q_data *q_data; 567 struct vb2_queue *vq; 568 569 vq = v4l2_m2m_get_vq(ctx->fh.m2m_ctx, f->type); 570 if (!vq) 571 return -EINVAL; 572 573 q_data = get_q_data(ctx, f->type); 574 if (!q_data) 575 return -EINVAL; 576 577 if (vb2_is_busy(vq)) { 578 v4l2_err(&ctx->dev->v4l2_dev, "%s queue busy\n", __func__); 579 return -EBUSY; 580 } 581 582 q_data->fourcc = f->fmt.pix.pixelformat; 583 q_data->width = f->fmt.pix.width; 584 q_data->height = f->fmt.pix.height; 585 q_data->bytesperline = f->fmt.pix.bytesperline; 586 q_data->sizeimage = f->fmt.pix.sizeimage; 587 q_data->rect.left = 0; 588 q_data->rect.top = 0; 589 q_data->rect.width = f->fmt.pix.width; 590 q_data->rect.height = f->fmt.pix.height; 591 592 switch (f->fmt.pix.pixelformat) { 593 case V4L2_PIX_FMT_NV12: 594 if (f->type == V4L2_BUF_TYPE_VIDEO_OUTPUT) { 595 ctx->tiled_map_type = GDI_TILED_FRAME_MB_RASTER_MAP; 596 if (!disable_tiling) 597 break; 598 } 599 /* else fall through */ 600 case V4L2_PIX_FMT_YUV420: 601 case V4L2_PIX_FMT_YVU420: 602 ctx->tiled_map_type = GDI_LINEAR_FRAME_MAP; 603 break; 604 default: 605 break; 606 } 607 608 v4l2_dbg(1, coda_debug, &ctx->dev->v4l2_dev, 609 "Setting format for type %d, wxh: %dx%d, fmt: %d\n", 610 f->type, q_data->width, q_data->height, q_data->fourcc); 611 612 return 0; 613} 614 615static int coda_s_fmt_vid_cap(struct file *file, void *priv, 616 struct v4l2_format *f) 617{ 618 struct coda_ctx *ctx = fh_to_ctx(priv); 619 int ret; 620 621 ret = coda_try_fmt_vid_cap(file, priv, f); 622 if (ret) 623 return ret; 624 625 return coda_s_fmt(ctx, f); 626} 627 628static int coda_s_fmt_vid_out(struct file *file, void *priv, 629 struct v4l2_format *f) 630{ 631 struct coda_ctx *ctx = fh_to_ctx(priv); 632 struct v4l2_format f_cap; 633 int ret; 634 635 ret = coda_try_fmt_vid_out(file, priv, f); 636 if (ret) 637 return ret; 638 639 ret = coda_s_fmt(ctx, f); 640 if (ret) 641 return ret; 642 643 ctx->colorspace = f->fmt.pix.colorspace; 644 645 memset(&f_cap, 0, sizeof(f_cap)); 646 f_cap.type = V4L2_BUF_TYPE_VIDEO_CAPTURE; 647 coda_g_fmt(file, priv, &f_cap); 648 f_cap.fmt.pix.width = f->fmt.pix.width; 649 f_cap.fmt.pix.height = f->fmt.pix.height; 650 651 ret = coda_try_fmt_vid_cap(file, priv, &f_cap); 652 if (ret) 653 return ret; 654 655 return coda_s_fmt(ctx, &f_cap); 656} 657 658static int coda_reqbufs(struct file *file, void *priv, 659 struct v4l2_requestbuffers *rb) 660{ 661 struct coda_ctx *ctx = fh_to_ctx(priv); 662 int ret; 663 664 ret = v4l2_m2m_reqbufs(file, ctx->fh.m2m_ctx, rb); 665 if (ret) 666 return ret; 667 668 /* 669 * Allow to allocate instance specific per-context buffers, such as 670 * bitstream ringbuffer, slice buffer, work buffer, etc. if needed. 671 */ 672 if (rb->type == V4L2_BUF_TYPE_VIDEO_OUTPUT && ctx->ops->reqbufs) 673 return ctx->ops->reqbufs(ctx, rb); 674 675 return 0; 676} 677 678static int coda_qbuf(struct file *file, void *priv, 679 struct v4l2_buffer *buf) 680{ 681 struct coda_ctx *ctx = fh_to_ctx(priv); 682 683 return v4l2_m2m_qbuf(file, ctx->fh.m2m_ctx, buf); 684} 685 686static bool coda_buf_is_end_of_stream(struct coda_ctx *ctx, 687 struct vb2_v4l2_buffer *buf) 688{ 689 struct vb2_queue *src_vq; 690 691 src_vq = v4l2_m2m_get_vq(ctx->fh.m2m_ctx, V4L2_BUF_TYPE_VIDEO_OUTPUT); 692 693 return ((ctx->bit_stream_param & CODA_BIT_STREAM_END_FLAG) && 694 (buf->sequence == (ctx->qsequence - 1))); 695} 696 697void coda_m2m_buf_done(struct coda_ctx *ctx, struct vb2_v4l2_buffer *buf, 698 enum vb2_buffer_state state) 699{ 700 const struct v4l2_event eos_event = { 701 .type = V4L2_EVENT_EOS 702 }; 703 704 if (coda_buf_is_end_of_stream(ctx, buf)) { 705 buf->flags |= V4L2_BUF_FLAG_LAST; 706 707 v4l2_event_queue_fh(&ctx->fh, &eos_event); 708 } 709 710 v4l2_m2m_buf_done(buf, state); 711} 712 713static int coda_g_selection(struct file *file, void *fh, 714 struct v4l2_selection *s) 715{ 716 struct coda_ctx *ctx = fh_to_ctx(fh); 717 struct coda_q_data *q_data; 718 struct v4l2_rect r, *rsel; 719 720 q_data = get_q_data(ctx, s->type); 721 if (!q_data) 722 return -EINVAL; 723 724 r.left = 0; 725 r.top = 0; 726 r.width = q_data->width; 727 r.height = q_data->height; 728 rsel = &q_data->rect; 729 730 switch (s->target) { 731 case V4L2_SEL_TGT_CROP_DEFAULT: 732 case V4L2_SEL_TGT_CROP_BOUNDS: 733 rsel = &r; 734 /* fallthrough */ 735 case V4L2_SEL_TGT_CROP: 736 if (s->type != V4L2_BUF_TYPE_VIDEO_OUTPUT) 737 return -EINVAL; 738 break; 739 case V4L2_SEL_TGT_COMPOSE_BOUNDS: 740 case V4L2_SEL_TGT_COMPOSE_PADDED: 741 rsel = &r; 742 /* fallthrough */ 743 case V4L2_SEL_TGT_COMPOSE: 744 case V4L2_SEL_TGT_COMPOSE_DEFAULT: 745 if (s->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) 746 return -EINVAL; 747 break; 748 default: 749 return -EINVAL; 750 } 751 752 s->r = *rsel; 753 754 return 0; 755} 756 757static int coda_try_decoder_cmd(struct file *file, void *fh, 758 struct v4l2_decoder_cmd *dc) 759{ 760 if (dc->cmd != V4L2_DEC_CMD_STOP) 761 return -EINVAL; 762 763 if (dc->flags & V4L2_DEC_CMD_STOP_TO_BLACK) 764 return -EINVAL; 765 766 if (!(dc->flags & V4L2_DEC_CMD_STOP_IMMEDIATELY) && (dc->stop.pts != 0)) 767 return -EINVAL; 768 769 return 0; 770} 771 772static int coda_decoder_cmd(struct file *file, void *fh, 773 struct v4l2_decoder_cmd *dc) 774{ 775 struct coda_ctx *ctx = fh_to_ctx(fh); 776 int ret; 777 778 ret = coda_try_decoder_cmd(file, fh, dc); 779 if (ret < 0) 780 return ret; 781 782 /* Ignore decoder stop command silently in encoder context */ 783 if (ctx->inst_type != CODA_INST_DECODER) 784 return 0; 785 786 /* Set the stream-end flag on this context */ 787 coda_bit_stream_end_flag(ctx); 788 ctx->hold = false; 789 v4l2_m2m_try_schedule(ctx->fh.m2m_ctx); 790 791 return 0; 792} 793 794static int coda_g_parm(struct file *file, void *fh, struct v4l2_streamparm *a) 795{ 796 struct coda_ctx *ctx = fh_to_ctx(fh); 797 struct v4l2_fract *tpf; 798 799 if (a->type != V4L2_BUF_TYPE_VIDEO_OUTPUT) 800 return -EINVAL; 801 802 a->parm.output.capability = V4L2_CAP_TIMEPERFRAME; 803 tpf = &a->parm.output.timeperframe; 804 tpf->denominator = ctx->params.framerate & CODA_FRATE_RES_MASK; 805 tpf->numerator = 1 + (ctx->params.framerate >> 806 CODA_FRATE_DIV_OFFSET); 807 808 return 0; 809} 810 811/* 812 * Approximate timeperframe v4l2_fract with values that can be written 813 * into the 16-bit CODA_FRATE_DIV and CODA_FRATE_RES fields. 814 */ 815static void coda_approximate_timeperframe(struct v4l2_fract *timeperframe) 816{ 817 struct v4l2_fract s = *timeperframe; 818 struct v4l2_fract f0; 819 struct v4l2_fract f1 = { 1, 0 }; 820 struct v4l2_fract f2 = { 0, 1 }; 821 unsigned int i, div, s_denominator; 822 823 /* Lower bound is 1/65535 */ 824 if (s.numerator == 0 || s.denominator / s.numerator > 65535) { 825 timeperframe->numerator = 1; 826 timeperframe->denominator = 65535; 827 return; 828 } 829 830 /* Upper bound is 65536/1, map everything above to infinity */ 831 if (s.denominator == 0 || s.numerator / s.denominator > 65536) { 832 timeperframe->numerator = 1; 833 timeperframe->denominator = 0; 834 return; 835 } 836 837 /* Reduce fraction to lowest terms */ 838 div = gcd(s.numerator, s.denominator); 839 if (div > 1) { 840 s.numerator /= div; 841 s.denominator /= div; 842 } 843 844 if (s.numerator <= 65536 && s.denominator < 65536) { 845 *timeperframe = s; 846 return; 847 } 848 849 /* Find successive convergents from continued fraction expansion */ 850 while (f2.numerator <= 65536 && f2.denominator < 65536) { 851 f0 = f1; 852 f1 = f2; 853 854 /* Stop when f2 exactly equals timeperframe */ 855 if (s.numerator == 0) 856 break; 857 858 i = s.denominator / s.numerator; 859 860 f2.numerator = f0.numerator + i * f1.numerator; 861 f2.denominator = f0.denominator + i * f2.denominator; 862 863 s_denominator = s.numerator; 864 s.numerator = s.denominator % s.numerator; 865 s.denominator = s_denominator; 866 } 867 868 *timeperframe = f1; 869} 870 871static uint32_t coda_timeperframe_to_frate(struct v4l2_fract *timeperframe) 872{ 873 return ((timeperframe->numerator - 1) << CODA_FRATE_DIV_OFFSET) | 874 timeperframe->denominator; 875} 876 877static int coda_s_parm(struct file *file, void *fh, struct v4l2_streamparm *a) 878{ 879 struct coda_ctx *ctx = fh_to_ctx(fh); 880 struct v4l2_fract *tpf; 881 882 if (a->type != V4L2_BUF_TYPE_VIDEO_OUTPUT) 883 return -EINVAL; 884 885 tpf = &a->parm.output.timeperframe; 886 coda_approximate_timeperframe(tpf); 887 ctx->params.framerate = coda_timeperframe_to_frate(tpf); 888 889 return 0; 890} 891 892static int coda_subscribe_event(struct v4l2_fh *fh, 893 const struct v4l2_event_subscription *sub) 894{ 895 switch (sub->type) { 896 case V4L2_EVENT_EOS: 897 return v4l2_event_subscribe(fh, sub, 0, NULL); 898 default: 899 return v4l2_ctrl_subscribe_event(fh, sub); 900 } 901} 902 903static const struct v4l2_ioctl_ops coda_ioctl_ops = { 904 .vidioc_querycap = coda_querycap, 905 906 .vidioc_enum_fmt_vid_cap = coda_enum_fmt, 907 .vidioc_g_fmt_vid_cap = coda_g_fmt, 908 .vidioc_try_fmt_vid_cap = coda_try_fmt_vid_cap, 909 .vidioc_s_fmt_vid_cap = coda_s_fmt_vid_cap, 910 911 .vidioc_enum_fmt_vid_out = coda_enum_fmt, 912 .vidioc_g_fmt_vid_out = coda_g_fmt, 913 .vidioc_try_fmt_vid_out = coda_try_fmt_vid_out, 914 .vidioc_s_fmt_vid_out = coda_s_fmt_vid_out, 915 916 .vidioc_reqbufs = coda_reqbufs, 917 .vidioc_querybuf = v4l2_m2m_ioctl_querybuf, 918 919 .vidioc_qbuf = coda_qbuf, 920 .vidioc_expbuf = v4l2_m2m_ioctl_expbuf, 921 .vidioc_dqbuf = v4l2_m2m_ioctl_dqbuf, 922 .vidioc_create_bufs = v4l2_m2m_ioctl_create_bufs, 923 924 .vidioc_streamon = v4l2_m2m_ioctl_streamon, 925 .vidioc_streamoff = v4l2_m2m_ioctl_streamoff, 926 927 .vidioc_g_selection = coda_g_selection, 928 929 .vidioc_try_decoder_cmd = coda_try_decoder_cmd, 930 .vidioc_decoder_cmd = coda_decoder_cmd, 931 932 .vidioc_g_parm = coda_g_parm, 933 .vidioc_s_parm = coda_s_parm, 934 935 .vidioc_subscribe_event = coda_subscribe_event, 936 .vidioc_unsubscribe_event = v4l2_event_unsubscribe, 937}; 938 939/* 940 * Mem-to-mem operations. 941 */ 942 943static void coda_device_run(void *m2m_priv) 944{ 945 struct coda_ctx *ctx = m2m_priv; 946 struct coda_dev *dev = ctx->dev; 947 948 queue_work(dev->workqueue, &ctx->pic_run_work); 949} 950 951static void coda_pic_run_work(struct work_struct *work) 952{ 953 struct coda_ctx *ctx = container_of(work, struct coda_ctx, pic_run_work); 954 struct coda_dev *dev = ctx->dev; 955 int ret; 956 957 mutex_lock(&ctx->buffer_mutex); 958 mutex_lock(&dev->coda_mutex); 959 960 ret = ctx->ops->prepare_run(ctx); 961 if (ret < 0 && ctx->inst_type == CODA_INST_DECODER) { 962 mutex_unlock(&dev->coda_mutex); 963 mutex_unlock(&ctx->buffer_mutex); 964 /* job_finish scheduled by prepare_decode */ 965 return; 966 } 967 968 if (!wait_for_completion_timeout(&ctx->completion, 969 msecs_to_jiffies(1000))) { 970 dev_err(&dev->plat_dev->dev, "CODA PIC_RUN timeout\n"); 971 972 ctx->hold = true; 973 974 coda_hw_reset(ctx); 975 } else if (!ctx->aborting) { 976 ctx->ops->finish_run(ctx); 977 } 978 979 if ((ctx->aborting || (!ctx->streamon_cap && !ctx->streamon_out)) && 980 ctx->ops->seq_end_work) 981 queue_work(dev->workqueue, &ctx->seq_end_work); 982 983 mutex_unlock(&dev->coda_mutex); 984 mutex_unlock(&ctx->buffer_mutex); 985 986 v4l2_m2m_job_finish(ctx->dev->m2m_dev, ctx->fh.m2m_ctx); 987} 988 989static int coda_job_ready(void *m2m_priv) 990{ 991 struct coda_ctx *ctx = m2m_priv; 992 int src_bufs = v4l2_m2m_num_src_bufs_ready(ctx->fh.m2m_ctx); 993 994 /* 995 * For both 'P' and 'key' frame cases 1 picture 996 * and 1 frame are needed. In the decoder case, 997 * the compressed frame can be in the bitstream. 998 */ 999 if (!src_bufs && ctx->inst_type != CODA_INST_DECODER) { 1000 v4l2_dbg(1, coda_debug, &ctx->dev->v4l2_dev, 1001 "not ready: not enough video buffers.\n"); 1002 return 0; 1003 } 1004 1005 if (!v4l2_m2m_num_dst_bufs_ready(ctx->fh.m2m_ctx)) { 1006 v4l2_dbg(1, coda_debug, &ctx->dev->v4l2_dev, 1007 "not ready: not enough video capture buffers.\n"); 1008 return 0; 1009 } 1010 1011 if (ctx->inst_type == CODA_INST_DECODER && ctx->use_bit) { 1012 bool stream_end = ctx->bit_stream_param & 1013 CODA_BIT_STREAM_END_FLAG; 1014 int num_metas = ctx->num_metas; 1015 1016 if (ctx->hold && !src_bufs) { 1017 v4l2_dbg(1, coda_debug, &ctx->dev->v4l2_dev, 1018 "%d: not ready: on hold for more buffers.\n", 1019 ctx->idx); 1020 return 0; 1021 } 1022 1023 if (!stream_end && (num_metas + src_bufs) < 2) { 1024 v4l2_dbg(1, coda_debug, &ctx->dev->v4l2_dev, 1025 "%d: not ready: need 2 buffers available (%d, %d)\n", 1026 ctx->idx, num_metas, src_bufs); 1027 return 0; 1028 } 1029 1030 1031 if (!src_bufs && !stream_end && 1032 (coda_get_bitstream_payload(ctx) < 512)) { 1033 v4l2_dbg(1, coda_debug, &ctx->dev->v4l2_dev, 1034 "%d: not ready: not enough bitstream data (%d).\n", 1035 ctx->idx, coda_get_bitstream_payload(ctx)); 1036 return 0; 1037 } 1038 } 1039 1040 if (ctx->aborting) { 1041 v4l2_dbg(1, coda_debug, &ctx->dev->v4l2_dev, 1042 "not ready: aborting\n"); 1043 return 0; 1044 } 1045 1046 v4l2_dbg(1, coda_debug, &ctx->dev->v4l2_dev, 1047 "job ready\n"); 1048 1049 return 1; 1050} 1051 1052static void coda_job_abort(void *priv) 1053{ 1054 struct coda_ctx *ctx = priv; 1055 1056 ctx->aborting = 1; 1057 1058 v4l2_dbg(1, coda_debug, &ctx->dev->v4l2_dev, 1059 "Aborting task\n"); 1060} 1061 1062static void coda_lock(void *m2m_priv) 1063{ 1064 struct coda_ctx *ctx = m2m_priv; 1065 struct coda_dev *pcdev = ctx->dev; 1066 1067 mutex_lock(&pcdev->dev_mutex); 1068} 1069 1070static void coda_unlock(void *m2m_priv) 1071{ 1072 struct coda_ctx *ctx = m2m_priv; 1073 struct coda_dev *pcdev = ctx->dev; 1074 1075 mutex_unlock(&pcdev->dev_mutex); 1076} 1077 1078static const struct v4l2_m2m_ops coda_m2m_ops = { 1079 .device_run = coda_device_run, 1080 .job_ready = coda_job_ready, 1081 .job_abort = coda_job_abort, 1082 .lock = coda_lock, 1083 .unlock = coda_unlock, 1084}; 1085 1086static void set_default_params(struct coda_ctx *ctx) 1087{ 1088 unsigned int max_w, max_h, usize, csize; 1089 1090 ctx->codec = coda_find_codec(ctx->dev, ctx->cvd->src_formats[0], 1091 ctx->cvd->dst_formats[0]); 1092 max_w = min(ctx->codec->max_w, 1920U); 1093 max_h = min(ctx->codec->max_h, 1088U); 1094 usize = max_w * max_h * 3 / 2; 1095 csize = coda_estimate_sizeimage(ctx, usize, max_w, max_h); 1096 1097 ctx->params.codec_mode = ctx->codec->mode; 1098 ctx->colorspace = V4L2_COLORSPACE_REC709; 1099 ctx->params.framerate = 30; 1100 1101 /* Default formats for output and input queues */ 1102 ctx->q_data[V4L2_M2M_SRC].fourcc = ctx->cvd->src_formats[0]; 1103 ctx->q_data[V4L2_M2M_DST].fourcc = ctx->cvd->dst_formats[0]; 1104 ctx->q_data[V4L2_M2M_SRC].width = max_w; 1105 ctx->q_data[V4L2_M2M_SRC].height = max_h; 1106 ctx->q_data[V4L2_M2M_DST].width = max_w; 1107 ctx->q_data[V4L2_M2M_DST].height = max_h; 1108 if (ctx->codec->src_fourcc == V4L2_PIX_FMT_YUV420) { 1109 ctx->q_data[V4L2_M2M_SRC].bytesperline = max_w; 1110 ctx->q_data[V4L2_M2M_SRC].sizeimage = usize; 1111 ctx->q_data[V4L2_M2M_DST].bytesperline = 0; 1112 ctx->q_data[V4L2_M2M_DST].sizeimage = csize; 1113 } else { 1114 ctx->q_data[V4L2_M2M_SRC].bytesperline = 0; 1115 ctx->q_data[V4L2_M2M_SRC].sizeimage = csize; 1116 ctx->q_data[V4L2_M2M_DST].bytesperline = max_w; 1117 ctx->q_data[V4L2_M2M_DST].sizeimage = usize; 1118 } 1119 ctx->q_data[V4L2_M2M_SRC].rect.width = max_w; 1120 ctx->q_data[V4L2_M2M_SRC].rect.height = max_h; 1121 ctx->q_data[V4L2_M2M_DST].rect.width = max_w; 1122 ctx->q_data[V4L2_M2M_DST].rect.height = max_h; 1123 1124 /* 1125 * Since the RBC2AXI logic only supports a single chroma plane, 1126 * macroblock tiling only works for to NV12 pixel format. 1127 */ 1128 ctx->tiled_map_type = GDI_LINEAR_FRAME_MAP; 1129} 1130 1131/* 1132 * Queue operations 1133 */ 1134static int coda_queue_setup(struct vb2_queue *vq, const void *parg, 1135 unsigned int *nbuffers, unsigned int *nplanes, 1136 unsigned int sizes[], void *alloc_ctxs[]) 1137{ 1138 struct coda_ctx *ctx = vb2_get_drv_priv(vq); 1139 struct coda_q_data *q_data; 1140 unsigned int size; 1141 1142 q_data = get_q_data(ctx, vq->type); 1143 size = q_data->sizeimage; 1144 1145 *nplanes = 1; 1146 sizes[0] = size; 1147 1148 /* Set to vb2-dma-contig allocator context, ignored by vb2-vmalloc */ 1149 alloc_ctxs[0] = ctx->dev->alloc_ctx; 1150 1151 v4l2_dbg(1, coda_debug, &ctx->dev->v4l2_dev, 1152 "get %d buffer(s) of size %d each.\n", *nbuffers, size); 1153 1154 return 0; 1155} 1156 1157static int coda_buf_prepare(struct vb2_buffer *vb) 1158{ 1159 struct coda_ctx *ctx = vb2_get_drv_priv(vb->vb2_queue); 1160 struct coda_q_data *q_data; 1161 1162 q_data = get_q_data(ctx, vb->vb2_queue->type); 1163 1164 if (vb2_plane_size(vb, 0) < q_data->sizeimage) { 1165 v4l2_warn(&ctx->dev->v4l2_dev, 1166 "%s data will not fit into plane (%lu < %lu)\n", 1167 __func__, vb2_plane_size(vb, 0), 1168 (long)q_data->sizeimage); 1169 return -EINVAL; 1170 } 1171 1172 return 0; 1173} 1174 1175static void coda_buf_queue(struct vb2_buffer *vb) 1176{ 1177 struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb); 1178 struct coda_ctx *ctx = vb2_get_drv_priv(vb->vb2_queue); 1179 struct vb2_queue *vq = vb->vb2_queue; 1180 struct coda_q_data *q_data; 1181 1182 q_data = get_q_data(ctx, vb->vb2_queue->type); 1183 1184 /* 1185 * In the decoder case, immediately try to copy the buffer into the 1186 * bitstream ringbuffer and mark it as ready to be dequeued. 1187 */ 1188 if (ctx->bitstream.size && vq->type == V4L2_BUF_TYPE_VIDEO_OUTPUT) { 1189 /* 1190 * For backwards compatibility, queuing an empty buffer marks 1191 * the stream end 1192 */ 1193 if (vb2_get_plane_payload(vb, 0) == 0) 1194 coda_bit_stream_end_flag(ctx); 1195 mutex_lock(&ctx->bitstream_mutex); 1196 v4l2_m2m_buf_queue(ctx->fh.m2m_ctx, vbuf); 1197 if (vb2_is_streaming(vb->vb2_queue)) 1198 coda_fill_bitstream(ctx, true); 1199 mutex_unlock(&ctx->bitstream_mutex); 1200 } else { 1201 v4l2_m2m_buf_queue(ctx->fh.m2m_ctx, vbuf); 1202 } 1203} 1204 1205int coda_alloc_aux_buf(struct coda_dev *dev, struct coda_aux_buf *buf, 1206 size_t size, const char *name, struct dentry *parent) 1207{ 1208 buf->vaddr = dma_alloc_coherent(&dev->plat_dev->dev, size, &buf->paddr, 1209 GFP_KERNEL); 1210 if (!buf->vaddr) { 1211 v4l2_err(&dev->v4l2_dev, 1212 "Failed to allocate %s buffer of size %u\n", 1213 name, size); 1214 return -ENOMEM; 1215 } 1216 1217 buf->size = size; 1218 1219 if (name && parent) { 1220 buf->blob.data = buf->vaddr; 1221 buf->blob.size = size; 1222 buf->dentry = debugfs_create_blob(name, 0644, parent, 1223 &buf->blob); 1224 if (!buf->dentry) 1225 dev_warn(&dev->plat_dev->dev, 1226 "failed to create debugfs entry %s\n", name); 1227 } 1228 1229 return 0; 1230} 1231 1232void coda_free_aux_buf(struct coda_dev *dev, 1233 struct coda_aux_buf *buf) 1234{ 1235 if (buf->vaddr) { 1236 dma_free_coherent(&dev->plat_dev->dev, buf->size, 1237 buf->vaddr, buf->paddr); 1238 buf->vaddr = NULL; 1239 buf->size = 0; 1240 debugfs_remove(buf->dentry); 1241 buf->dentry = NULL; 1242 } 1243} 1244 1245static int coda_start_streaming(struct vb2_queue *q, unsigned int count) 1246{ 1247 struct coda_ctx *ctx = vb2_get_drv_priv(q); 1248 struct v4l2_device *v4l2_dev = &ctx->dev->v4l2_dev; 1249 struct coda_q_data *q_data_src, *q_data_dst; 1250 struct vb2_v4l2_buffer *buf; 1251 int ret = 0; 1252 1253 q_data_src = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_OUTPUT); 1254 if (q->type == V4L2_BUF_TYPE_VIDEO_OUTPUT) { 1255 if (ctx->inst_type == CODA_INST_DECODER && ctx->use_bit) { 1256 /* copy the buffers that were queued before streamon */ 1257 mutex_lock(&ctx->bitstream_mutex); 1258 coda_fill_bitstream(ctx, false); 1259 mutex_unlock(&ctx->bitstream_mutex); 1260 1261 if (coda_get_bitstream_payload(ctx) < 512) { 1262 ret = -EINVAL; 1263 goto err; 1264 } 1265 } else { 1266 if (count < 1) { 1267 ret = -EINVAL; 1268 goto err; 1269 } 1270 } 1271 1272 ctx->streamon_out = 1; 1273 } else { 1274 if (count < 1) { 1275 ret = -EINVAL; 1276 goto err; 1277 } 1278 1279 ctx->streamon_cap = 1; 1280 } 1281 1282 /* Don't start the coda unless both queues are on */ 1283 if (!(ctx->streamon_out & ctx->streamon_cap)) 1284 return 0; 1285 1286 q_data_dst = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_CAPTURE); 1287 if ((q_data_src->width != q_data_dst->width && 1288 round_up(q_data_src->width, 16) != q_data_dst->width) || 1289 (q_data_src->height != q_data_dst->height && 1290 round_up(q_data_src->height, 16) != q_data_dst->height)) { 1291 v4l2_err(v4l2_dev, "can't convert %dx%d to %dx%d\n", 1292 q_data_src->width, q_data_src->height, 1293 q_data_dst->width, q_data_dst->height); 1294 ret = -EINVAL; 1295 goto err; 1296 } 1297 1298 /* Allow BIT decoder device_run with no new buffers queued */ 1299 if (ctx->inst_type == CODA_INST_DECODER && ctx->use_bit) 1300 v4l2_m2m_set_src_buffered(ctx->fh.m2m_ctx, true); 1301 1302 ctx->gopcounter = ctx->params.gop_size - 1; 1303 1304 ctx->codec = coda_find_codec(ctx->dev, q_data_src->fourcc, 1305 q_data_dst->fourcc); 1306 if (!ctx->codec) { 1307 v4l2_err(v4l2_dev, "couldn't tell instance type.\n"); 1308 ret = -EINVAL; 1309 goto err; 1310 } 1311 1312 if (q_data_dst->fourcc == V4L2_PIX_FMT_JPEG) 1313 ctx->params.gop_size = 1; 1314 ctx->gopcounter = ctx->params.gop_size - 1; 1315 1316 ret = ctx->ops->start_streaming(ctx); 1317 if (ctx->inst_type == CODA_INST_DECODER) { 1318 if (ret == -EAGAIN) 1319 return 0; 1320 else if (ret < 0) 1321 goto err; 1322 } 1323 1324 return ret; 1325 1326err: 1327 if (q->type == V4L2_BUF_TYPE_VIDEO_OUTPUT) { 1328 while ((buf = v4l2_m2m_src_buf_remove(ctx->fh.m2m_ctx))) 1329 v4l2_m2m_buf_done(buf, VB2_BUF_STATE_QUEUED); 1330 } else { 1331 while ((buf = v4l2_m2m_dst_buf_remove(ctx->fh.m2m_ctx))) 1332 v4l2_m2m_buf_done(buf, VB2_BUF_STATE_QUEUED); 1333 } 1334 return ret; 1335} 1336 1337static void coda_stop_streaming(struct vb2_queue *q) 1338{ 1339 struct coda_ctx *ctx = vb2_get_drv_priv(q); 1340 struct coda_dev *dev = ctx->dev; 1341 struct vb2_v4l2_buffer *buf; 1342 unsigned long flags; 1343 bool stop; 1344 1345 stop = ctx->streamon_out && ctx->streamon_cap; 1346 1347 if (q->type == V4L2_BUF_TYPE_VIDEO_OUTPUT) { 1348 v4l2_dbg(1, coda_debug, &dev->v4l2_dev, 1349 "%s: output\n", __func__); 1350 ctx->streamon_out = 0; 1351 1352 coda_bit_stream_end_flag(ctx); 1353 1354 ctx->qsequence = 0; 1355 1356 while ((buf = v4l2_m2m_src_buf_remove(ctx->fh.m2m_ctx))) 1357 v4l2_m2m_buf_done(buf, VB2_BUF_STATE_ERROR); 1358 } else { 1359 v4l2_dbg(1, coda_debug, &dev->v4l2_dev, 1360 "%s: capture\n", __func__); 1361 ctx->streamon_cap = 0; 1362 1363 ctx->osequence = 0; 1364 ctx->sequence_offset = 0; 1365 1366 while ((buf = v4l2_m2m_dst_buf_remove(ctx->fh.m2m_ctx))) 1367 v4l2_m2m_buf_done(buf, VB2_BUF_STATE_ERROR); 1368 } 1369 1370 if (stop) { 1371 struct coda_buffer_meta *meta; 1372 1373 if (ctx->ops->seq_end_work) { 1374 queue_work(dev->workqueue, &ctx->seq_end_work); 1375 flush_work(&ctx->seq_end_work); 1376 } 1377 spin_lock_irqsave(&ctx->buffer_meta_lock, flags); 1378 while (!list_empty(&ctx->buffer_meta_list)) { 1379 meta = list_first_entry(&ctx->buffer_meta_list, 1380 struct coda_buffer_meta, list); 1381 list_del(&meta->list); 1382 kfree(meta); 1383 } 1384 ctx->num_metas = 0; 1385 spin_unlock_irqrestore(&ctx->buffer_meta_lock, flags); 1386 kfifo_init(&ctx->bitstream_fifo, 1387 ctx->bitstream.vaddr, ctx->bitstream.size); 1388 ctx->runcounter = 0; 1389 ctx->aborting = 0; 1390 } 1391 1392 if (!ctx->streamon_out && !ctx->streamon_cap) 1393 ctx->bit_stream_param &= ~CODA_BIT_STREAM_END_FLAG; 1394} 1395 1396static const struct vb2_ops coda_qops = { 1397 .queue_setup = coda_queue_setup, 1398 .buf_prepare = coda_buf_prepare, 1399 .buf_queue = coda_buf_queue, 1400 .start_streaming = coda_start_streaming, 1401 .stop_streaming = coda_stop_streaming, 1402 .wait_prepare = vb2_ops_wait_prepare, 1403 .wait_finish = vb2_ops_wait_finish, 1404}; 1405 1406static int coda_s_ctrl(struct v4l2_ctrl *ctrl) 1407{ 1408 struct coda_ctx *ctx = 1409 container_of(ctrl->handler, struct coda_ctx, ctrls); 1410 1411 v4l2_dbg(1, coda_debug, &ctx->dev->v4l2_dev, 1412 "s_ctrl: id = %d, val = %d\n", ctrl->id, ctrl->val); 1413 1414 switch (ctrl->id) { 1415 case V4L2_CID_HFLIP: 1416 if (ctrl->val) 1417 ctx->params.rot_mode |= CODA_MIR_HOR; 1418 else 1419 ctx->params.rot_mode &= ~CODA_MIR_HOR; 1420 break; 1421 case V4L2_CID_VFLIP: 1422 if (ctrl->val) 1423 ctx->params.rot_mode |= CODA_MIR_VER; 1424 else 1425 ctx->params.rot_mode &= ~CODA_MIR_VER; 1426 break; 1427 case V4L2_CID_MPEG_VIDEO_BITRATE: 1428 ctx->params.bitrate = ctrl->val / 1000; 1429 break; 1430 case V4L2_CID_MPEG_VIDEO_GOP_SIZE: 1431 ctx->params.gop_size = ctrl->val; 1432 break; 1433 case V4L2_CID_MPEG_VIDEO_H264_I_FRAME_QP: 1434 ctx->params.h264_intra_qp = ctrl->val; 1435 break; 1436 case V4L2_CID_MPEG_VIDEO_H264_P_FRAME_QP: 1437 ctx->params.h264_inter_qp = ctrl->val; 1438 break; 1439 case V4L2_CID_MPEG_VIDEO_H264_MIN_QP: 1440 ctx->params.h264_min_qp = ctrl->val; 1441 break; 1442 case V4L2_CID_MPEG_VIDEO_H264_MAX_QP: 1443 ctx->params.h264_max_qp = ctrl->val; 1444 break; 1445 case V4L2_CID_MPEG_VIDEO_H264_LOOP_FILTER_ALPHA: 1446 ctx->params.h264_deblk_alpha = ctrl->val; 1447 break; 1448 case V4L2_CID_MPEG_VIDEO_H264_LOOP_FILTER_BETA: 1449 ctx->params.h264_deblk_beta = ctrl->val; 1450 break; 1451 case V4L2_CID_MPEG_VIDEO_H264_LOOP_FILTER_MODE: 1452 ctx->params.h264_deblk_enabled = (ctrl->val == 1453 V4L2_MPEG_VIDEO_H264_LOOP_FILTER_MODE_ENABLED); 1454 break; 1455 case V4L2_CID_MPEG_VIDEO_MPEG4_I_FRAME_QP: 1456 ctx->params.mpeg4_intra_qp = ctrl->val; 1457 break; 1458 case V4L2_CID_MPEG_VIDEO_MPEG4_P_FRAME_QP: 1459 ctx->params.mpeg4_inter_qp = ctrl->val; 1460 break; 1461 case V4L2_CID_MPEG_VIDEO_MULTI_SLICE_MODE: 1462 ctx->params.slice_mode = ctrl->val; 1463 break; 1464 case V4L2_CID_MPEG_VIDEO_MULTI_SLICE_MAX_MB: 1465 ctx->params.slice_max_mb = ctrl->val; 1466 break; 1467 case V4L2_CID_MPEG_VIDEO_MULTI_SLICE_MAX_BYTES: 1468 ctx->params.slice_max_bits = ctrl->val * 8; 1469 break; 1470 case V4L2_CID_MPEG_VIDEO_HEADER_MODE: 1471 break; 1472 case V4L2_CID_MPEG_VIDEO_CYCLIC_INTRA_REFRESH_MB: 1473 ctx->params.intra_refresh = ctrl->val; 1474 break; 1475 case V4L2_CID_JPEG_COMPRESSION_QUALITY: 1476 coda_set_jpeg_compression_quality(ctx, ctrl->val); 1477 break; 1478 case V4L2_CID_JPEG_RESTART_INTERVAL: 1479 ctx->params.jpeg_restart_interval = ctrl->val; 1480 break; 1481 case V4L2_CID_MPEG_VIDEO_VBV_DELAY: 1482 ctx->params.vbv_delay = ctrl->val; 1483 break; 1484 case V4L2_CID_MPEG_VIDEO_VBV_SIZE: 1485 ctx->params.vbv_size = min(ctrl->val * 8192, 0x7fffffff); 1486 break; 1487 default: 1488 v4l2_dbg(1, coda_debug, &ctx->dev->v4l2_dev, 1489 "Invalid control, id=%d, val=%d\n", 1490 ctrl->id, ctrl->val); 1491 return -EINVAL; 1492 } 1493 1494 return 0; 1495} 1496 1497static const struct v4l2_ctrl_ops coda_ctrl_ops = { 1498 .s_ctrl = coda_s_ctrl, 1499}; 1500 1501static void coda_encode_ctrls(struct coda_ctx *ctx) 1502{ 1503 v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops, 1504 V4L2_CID_MPEG_VIDEO_BITRATE, 0, 32767000, 1000, 0); 1505 v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops, 1506 V4L2_CID_MPEG_VIDEO_GOP_SIZE, 1, 60, 1, 16); 1507 v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops, 1508 V4L2_CID_MPEG_VIDEO_H264_I_FRAME_QP, 0, 51, 1, 25); 1509 v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops, 1510 V4L2_CID_MPEG_VIDEO_H264_P_FRAME_QP, 0, 51, 1, 25); 1511 if (ctx->dev->devtype->product != CODA_960) { 1512 v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops, 1513 V4L2_CID_MPEG_VIDEO_H264_MIN_QP, 0, 51, 1, 12); 1514 } 1515 v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops, 1516 V4L2_CID_MPEG_VIDEO_H264_MAX_QP, 0, 51, 1, 51); 1517 v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops, 1518 V4L2_CID_MPEG_VIDEO_H264_LOOP_FILTER_ALPHA, 0, 15, 1, 0); 1519 v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops, 1520 V4L2_CID_MPEG_VIDEO_H264_LOOP_FILTER_BETA, 0, 15, 1, 0); 1521 v4l2_ctrl_new_std_menu(&ctx->ctrls, &coda_ctrl_ops, 1522 V4L2_CID_MPEG_VIDEO_H264_LOOP_FILTER_MODE, 1523 V4L2_MPEG_VIDEO_H264_LOOP_FILTER_MODE_DISABLED, 0x0, 1524 V4L2_MPEG_VIDEO_H264_LOOP_FILTER_MODE_ENABLED); 1525 v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops, 1526 V4L2_CID_MPEG_VIDEO_MPEG4_I_FRAME_QP, 1, 31, 1, 2); 1527 v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops, 1528 V4L2_CID_MPEG_VIDEO_MPEG4_P_FRAME_QP, 1, 31, 1, 2); 1529 v4l2_ctrl_new_std_menu(&ctx->ctrls, &coda_ctrl_ops, 1530 V4L2_CID_MPEG_VIDEO_MULTI_SLICE_MODE, 1531 V4L2_MPEG_VIDEO_MULTI_SICE_MODE_MAX_BYTES, 0x0, 1532 V4L2_MPEG_VIDEO_MULTI_SLICE_MODE_SINGLE); 1533 v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops, 1534 V4L2_CID_MPEG_VIDEO_MULTI_SLICE_MAX_MB, 1, 0x3fffffff, 1, 1); 1535 v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops, 1536 V4L2_CID_MPEG_VIDEO_MULTI_SLICE_MAX_BYTES, 1, 0x3fffffff, 1, 1537 500); 1538 v4l2_ctrl_new_std_menu(&ctx->ctrls, &coda_ctrl_ops, 1539 V4L2_CID_MPEG_VIDEO_HEADER_MODE, 1540 V4L2_MPEG_VIDEO_HEADER_MODE_JOINED_WITH_1ST_FRAME, 1541 (1 << V4L2_MPEG_VIDEO_HEADER_MODE_SEPARATE), 1542 V4L2_MPEG_VIDEO_HEADER_MODE_JOINED_WITH_1ST_FRAME); 1543 v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops, 1544 V4L2_CID_MPEG_VIDEO_CYCLIC_INTRA_REFRESH_MB, 0, 1545 1920 * 1088 / 256, 1, 0); 1546 v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops, 1547 V4L2_CID_MPEG_VIDEO_VBV_DELAY, 0, 0x7fff, 1, 0); 1548 /* 1549 * The maximum VBV size value is 0x7fffffff bits, 1550 * one bit less than 262144 KiB 1551 */ 1552 v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops, 1553 V4L2_CID_MPEG_VIDEO_VBV_SIZE, 0, 262144, 1, 0); 1554} 1555 1556static void coda_jpeg_encode_ctrls(struct coda_ctx *ctx) 1557{ 1558 v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops, 1559 V4L2_CID_JPEG_COMPRESSION_QUALITY, 5, 100, 1, 50); 1560 v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops, 1561 V4L2_CID_JPEG_RESTART_INTERVAL, 0, 100, 1, 0); 1562} 1563 1564static int coda_ctrls_setup(struct coda_ctx *ctx) 1565{ 1566 v4l2_ctrl_handler_init(&ctx->ctrls, 2); 1567 1568 v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops, 1569 V4L2_CID_HFLIP, 0, 1, 1, 0); 1570 v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops, 1571 V4L2_CID_VFLIP, 0, 1, 1, 0); 1572 if (ctx->inst_type == CODA_INST_ENCODER) { 1573 if (ctx->cvd->dst_formats[0] == V4L2_PIX_FMT_JPEG) 1574 coda_jpeg_encode_ctrls(ctx); 1575 else 1576 coda_encode_ctrls(ctx); 1577 } 1578 1579 if (ctx->ctrls.error) { 1580 v4l2_err(&ctx->dev->v4l2_dev, 1581 "control initialization error (%d)", 1582 ctx->ctrls.error); 1583 return -EINVAL; 1584 } 1585 1586 return v4l2_ctrl_handler_setup(&ctx->ctrls); 1587} 1588 1589static int coda_queue_init(struct coda_ctx *ctx, struct vb2_queue *vq) 1590{ 1591 vq->drv_priv = ctx; 1592 vq->ops = &coda_qops; 1593 vq->buf_struct_size = sizeof(struct v4l2_m2m_buffer); 1594 vq->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_COPY; 1595 vq->lock = &ctx->dev->dev_mutex; 1596 /* One way to indicate end-of-stream for coda is to set the 1597 * bytesused == 0. However by default videobuf2 handles bytesused 1598 * equal to 0 as a special case and changes its value to the size 1599 * of the buffer. Set the allow_zero_bytesused flag, so 1600 * that videobuf2 will keep the value of bytesused intact. 1601 */ 1602 vq->allow_zero_bytesused = 1; 1603 1604 return vb2_queue_init(vq); 1605} 1606 1607int coda_encoder_queue_init(void *priv, struct vb2_queue *src_vq, 1608 struct vb2_queue *dst_vq) 1609{ 1610 int ret; 1611 1612 src_vq->type = V4L2_BUF_TYPE_VIDEO_OUTPUT; 1613 src_vq->io_modes = VB2_DMABUF | VB2_MMAP; 1614 src_vq->mem_ops = &vb2_dma_contig_memops; 1615 1616 ret = coda_queue_init(priv, src_vq); 1617 if (ret) 1618 return ret; 1619 1620 dst_vq->type = V4L2_BUF_TYPE_VIDEO_CAPTURE; 1621 dst_vq->io_modes = VB2_DMABUF | VB2_MMAP; 1622 dst_vq->mem_ops = &vb2_dma_contig_memops; 1623 1624 return coda_queue_init(priv, dst_vq); 1625} 1626 1627int coda_decoder_queue_init(void *priv, struct vb2_queue *src_vq, 1628 struct vb2_queue *dst_vq) 1629{ 1630 int ret; 1631 1632 src_vq->type = V4L2_BUF_TYPE_VIDEO_OUTPUT; 1633 src_vq->io_modes = VB2_DMABUF | VB2_MMAP | VB2_USERPTR; 1634 src_vq->mem_ops = &vb2_vmalloc_memops; 1635 1636 ret = coda_queue_init(priv, src_vq); 1637 if (ret) 1638 return ret; 1639 1640 dst_vq->type = V4L2_BUF_TYPE_VIDEO_CAPTURE; 1641 dst_vq->io_modes = VB2_DMABUF | VB2_MMAP; 1642 dst_vq->mem_ops = &vb2_dma_contig_memops; 1643 1644 return coda_queue_init(priv, dst_vq); 1645} 1646 1647static int coda_next_free_instance(struct coda_dev *dev) 1648{ 1649 int idx = ffz(dev->instance_mask); 1650 1651 if ((idx < 0) || 1652 (dev->devtype->product == CODA_DX6 && idx > CODADX6_MAX_INSTANCES)) 1653 return -EBUSY; 1654 1655 return idx; 1656} 1657 1658/* 1659 * File operations 1660 */ 1661 1662static int coda_open(struct file *file) 1663{ 1664 struct video_device *vdev = video_devdata(file); 1665 struct coda_dev *dev = video_get_drvdata(vdev); 1666 struct coda_ctx *ctx = NULL; 1667 char *name; 1668 int ret; 1669 int idx; 1670 1671 ctx = kzalloc(sizeof(*ctx), GFP_KERNEL); 1672 if (!ctx) 1673 return -ENOMEM; 1674 1675 idx = coda_next_free_instance(dev); 1676 if (idx < 0) { 1677 ret = idx; 1678 goto err_coda_max; 1679 } 1680 set_bit(idx, &dev->instance_mask); 1681 1682 name = kasprintf(GFP_KERNEL, "context%d", idx); 1683 if (!name) { 1684 ret = -ENOMEM; 1685 goto err_coda_name_init; 1686 } 1687 1688 ctx->debugfs_entry = debugfs_create_dir(name, dev->debugfs_root); 1689 kfree(name); 1690 1691 ctx->cvd = to_coda_video_device(vdev); 1692 ctx->inst_type = ctx->cvd->type; 1693 ctx->ops = ctx->cvd->ops; 1694 ctx->use_bit = !ctx->cvd->direct; 1695 init_completion(&ctx->completion); 1696 INIT_WORK(&ctx->pic_run_work, coda_pic_run_work); 1697 if (ctx->ops->seq_end_work) 1698 INIT_WORK(&ctx->seq_end_work, ctx->ops->seq_end_work); 1699 v4l2_fh_init(&ctx->fh, video_devdata(file)); 1700 file->private_data = &ctx->fh; 1701 v4l2_fh_add(&ctx->fh); 1702 ctx->dev = dev; 1703 ctx->idx = idx; 1704 switch (dev->devtype->product) { 1705 case CODA_960: 1706 ctx->frame_mem_ctrl = 1 << 12; 1707 /* fallthrough */ 1708 case CODA_7541: 1709 ctx->reg_idx = 0; 1710 break; 1711 default: 1712 ctx->reg_idx = idx; 1713 } 1714 1715 /* Power up and upload firmware if necessary */ 1716 ret = pm_runtime_get_sync(&dev->plat_dev->dev); 1717 if (ret < 0) { 1718 v4l2_err(&dev->v4l2_dev, "failed to power up: %d\n", ret); 1719 goto err_pm_get; 1720 } 1721 1722 ret = clk_prepare_enable(dev->clk_per); 1723 if (ret) 1724 goto err_clk_per; 1725 1726 ret = clk_prepare_enable(dev->clk_ahb); 1727 if (ret) 1728 goto err_clk_ahb; 1729 1730 set_default_params(ctx); 1731 ctx->fh.m2m_ctx = v4l2_m2m_ctx_init(dev->m2m_dev, ctx, 1732 ctx->ops->queue_init); 1733 if (IS_ERR(ctx->fh.m2m_ctx)) { 1734 ret = PTR_ERR(ctx->fh.m2m_ctx); 1735 1736 v4l2_err(&dev->v4l2_dev, "%s return error (%d)\n", 1737 __func__, ret); 1738 goto err_ctx_init; 1739 } 1740 1741 ret = coda_ctrls_setup(ctx); 1742 if (ret) { 1743 v4l2_err(&dev->v4l2_dev, "failed to setup coda controls\n"); 1744 goto err_ctrls_setup; 1745 } 1746 1747 ctx->fh.ctrl_handler = &ctx->ctrls; 1748 1749 mutex_init(&ctx->bitstream_mutex); 1750 mutex_init(&ctx->buffer_mutex); 1751 INIT_LIST_HEAD(&ctx->buffer_meta_list); 1752 spin_lock_init(&ctx->buffer_meta_lock); 1753 1754 coda_lock(ctx); 1755 list_add(&ctx->list, &dev->instances); 1756 coda_unlock(ctx); 1757 1758 v4l2_dbg(1, coda_debug, &dev->v4l2_dev, "Created instance %d (%p)\n", 1759 ctx->idx, ctx); 1760 1761 return 0; 1762 1763err_ctrls_setup: 1764 v4l2_m2m_ctx_release(ctx->fh.m2m_ctx); 1765err_ctx_init: 1766 clk_disable_unprepare(dev->clk_ahb); 1767err_clk_ahb: 1768 clk_disable_unprepare(dev->clk_per); 1769err_clk_per: 1770 pm_runtime_put_sync(&dev->plat_dev->dev); 1771err_pm_get: 1772 v4l2_fh_del(&ctx->fh); 1773 v4l2_fh_exit(&ctx->fh); 1774 clear_bit(ctx->idx, &dev->instance_mask); 1775err_coda_name_init: 1776err_coda_max: 1777 kfree(ctx); 1778 return ret; 1779} 1780 1781static int coda_release(struct file *file) 1782{ 1783 struct coda_dev *dev = video_drvdata(file); 1784 struct coda_ctx *ctx = fh_to_ctx(file->private_data); 1785 1786 v4l2_dbg(1, coda_debug, &dev->v4l2_dev, "Releasing instance %p\n", 1787 ctx); 1788 1789 if (ctx->inst_type == CODA_INST_DECODER && ctx->use_bit) 1790 coda_bit_stream_end_flag(ctx); 1791 1792 /* If this instance is running, call .job_abort and wait for it to end */ 1793 v4l2_m2m_ctx_release(ctx->fh.m2m_ctx); 1794 1795 /* In case the instance was not running, we still need to call SEQ_END */ 1796 if (ctx->ops->seq_end_work) { 1797 queue_work(dev->workqueue, &ctx->seq_end_work); 1798 flush_work(&ctx->seq_end_work); 1799 } 1800 1801 coda_lock(ctx); 1802 list_del(&ctx->list); 1803 coda_unlock(ctx); 1804 1805 if (ctx->dev->devtype->product == CODA_DX6) 1806 coda_free_aux_buf(dev, &ctx->workbuf); 1807 1808 v4l2_ctrl_handler_free(&ctx->ctrls); 1809 clk_disable_unprepare(dev->clk_ahb); 1810 clk_disable_unprepare(dev->clk_per); 1811 pm_runtime_put_sync(&dev->plat_dev->dev); 1812 v4l2_fh_del(&ctx->fh); 1813 v4l2_fh_exit(&ctx->fh); 1814 clear_bit(ctx->idx, &dev->instance_mask); 1815 if (ctx->ops->release) 1816 ctx->ops->release(ctx); 1817 debugfs_remove_recursive(ctx->debugfs_entry); 1818 kfree(ctx); 1819 1820 return 0; 1821} 1822 1823static const struct v4l2_file_operations coda_fops = { 1824 .owner = THIS_MODULE, 1825 .open = coda_open, 1826 .release = coda_release, 1827 .poll = v4l2_m2m_fop_poll, 1828 .unlocked_ioctl = video_ioctl2, 1829 .mmap = v4l2_m2m_fop_mmap, 1830}; 1831 1832static int coda_hw_init(struct coda_dev *dev) 1833{ 1834 u32 data; 1835 u16 *p; 1836 int i, ret; 1837 1838 ret = clk_prepare_enable(dev->clk_per); 1839 if (ret) 1840 goto err_clk_per; 1841 1842 ret = clk_prepare_enable(dev->clk_ahb); 1843 if (ret) 1844 goto err_clk_ahb; 1845 1846 if (dev->rstc) 1847 reset_control_reset(dev->rstc); 1848 1849 /* 1850 * Copy the first CODA_ISRAM_SIZE in the internal SRAM. 1851 * The 16-bit chars in the code buffer are in memory access 1852 * order, re-sort them to CODA order for register download. 1853 * Data in this SRAM survives a reboot. 1854 */ 1855 p = (u16 *)dev->codebuf.vaddr; 1856 if (dev->devtype->product == CODA_DX6) { 1857 for (i = 0; i < (CODA_ISRAM_SIZE / 2); i++) { 1858 data = CODA_DOWN_ADDRESS_SET(i) | 1859 CODA_DOWN_DATA_SET(p[i ^ 1]); 1860 coda_write(dev, data, CODA_REG_BIT_CODE_DOWN); 1861 } 1862 } else { 1863 for (i = 0; i < (CODA_ISRAM_SIZE / 2); i++) { 1864 data = CODA_DOWN_ADDRESS_SET(i) | 1865 CODA_DOWN_DATA_SET(p[round_down(i, 4) + 1866 3 - (i % 4)]); 1867 coda_write(dev, data, CODA_REG_BIT_CODE_DOWN); 1868 } 1869 } 1870 1871 /* Clear registers */ 1872 for (i = 0; i < 64; i++) 1873 coda_write(dev, 0, CODA_REG_BIT_CODE_BUF_ADDR + i * 4); 1874 1875 /* Tell the BIT where to find everything it needs */ 1876 if (dev->devtype->product == CODA_960 || 1877 dev->devtype->product == CODA_7541) { 1878 coda_write(dev, dev->tempbuf.paddr, 1879 CODA_REG_BIT_TEMP_BUF_ADDR); 1880 coda_write(dev, 0, CODA_REG_BIT_BIT_STREAM_PARAM); 1881 } else { 1882 coda_write(dev, dev->workbuf.paddr, 1883 CODA_REG_BIT_WORK_BUF_ADDR); 1884 } 1885 coda_write(dev, dev->codebuf.paddr, 1886 CODA_REG_BIT_CODE_BUF_ADDR); 1887 coda_write(dev, 0, CODA_REG_BIT_CODE_RUN); 1888 1889 /* Set default values */ 1890 switch (dev->devtype->product) { 1891 case CODA_DX6: 1892 coda_write(dev, CODADX6_STREAM_BUF_PIC_FLUSH, 1893 CODA_REG_BIT_STREAM_CTRL); 1894 break; 1895 default: 1896 coda_write(dev, CODA7_STREAM_BUF_PIC_FLUSH, 1897 CODA_REG_BIT_STREAM_CTRL); 1898 } 1899 if (dev->devtype->product == CODA_960) 1900 coda_write(dev, 1 << 12, CODA_REG_BIT_FRAME_MEM_CTRL); 1901 else 1902 coda_write(dev, 0, CODA_REG_BIT_FRAME_MEM_CTRL); 1903 1904 if (dev->devtype->product != CODA_DX6) 1905 coda_write(dev, 0, CODA7_REG_BIT_AXI_SRAM_USE); 1906 1907 coda_write(dev, CODA_INT_INTERRUPT_ENABLE, 1908 CODA_REG_BIT_INT_ENABLE); 1909 1910 /* Reset VPU and start processor */ 1911 data = coda_read(dev, CODA_REG_BIT_CODE_RESET); 1912 data |= CODA_REG_RESET_ENABLE; 1913 coda_write(dev, data, CODA_REG_BIT_CODE_RESET); 1914 udelay(10); 1915 data &= ~CODA_REG_RESET_ENABLE; 1916 coda_write(dev, data, CODA_REG_BIT_CODE_RESET); 1917 coda_write(dev, CODA_REG_RUN_ENABLE, CODA_REG_BIT_CODE_RUN); 1918 1919 clk_disable_unprepare(dev->clk_ahb); 1920 clk_disable_unprepare(dev->clk_per); 1921 1922 return 0; 1923 1924err_clk_ahb: 1925 clk_disable_unprepare(dev->clk_per); 1926err_clk_per: 1927 return ret; 1928} 1929 1930static int coda_register_device(struct coda_dev *dev, int i) 1931{ 1932 struct video_device *vfd = &dev->vfd[i]; 1933 1934 if (i >= dev->devtype->num_vdevs) 1935 return -EINVAL; 1936 1937 strlcpy(vfd->name, dev->devtype->vdevs[i]->name, sizeof(vfd->name)); 1938 vfd->fops = &coda_fops; 1939 vfd->ioctl_ops = &coda_ioctl_ops; 1940 vfd->release = video_device_release_empty, 1941 vfd->lock = &dev->dev_mutex; 1942 vfd->v4l2_dev = &dev->v4l2_dev; 1943 vfd->vfl_dir = VFL_DIR_M2M; 1944 video_set_drvdata(vfd, dev); 1945 1946 /* Not applicable, use the selection API instead */ 1947 v4l2_disable_ioctl(vfd, VIDIOC_CROPCAP); 1948 v4l2_disable_ioctl(vfd, VIDIOC_G_CROP); 1949 v4l2_disable_ioctl(vfd, VIDIOC_S_CROP); 1950 1951 return video_register_device(vfd, VFL_TYPE_GRABBER, 0); 1952} 1953 1954static void coda_fw_callback(const struct firmware *fw, void *context) 1955{ 1956 struct coda_dev *dev = context; 1957 struct platform_device *pdev = dev->plat_dev; 1958 int i, ret; 1959 1960 if (!fw) { 1961 v4l2_err(&dev->v4l2_dev, "firmware request failed\n"); 1962 goto put_pm; 1963 } 1964 1965 /* allocate auxiliary per-device code buffer for the BIT processor */ 1966 ret = coda_alloc_aux_buf(dev, &dev->codebuf, fw->size, "codebuf", 1967 dev->debugfs_root); 1968 if (ret < 0) 1969 goto put_pm; 1970 1971 /* Copy the whole firmware image to the code buffer */ 1972 memcpy(dev->codebuf.vaddr, fw->data, fw->size); 1973 release_firmware(fw); 1974 1975 ret = coda_hw_init(dev); 1976 if (ret < 0) { 1977 v4l2_err(&dev->v4l2_dev, "HW initialization failed\n"); 1978 goto put_pm; 1979 } 1980 1981 ret = coda_check_firmware(dev); 1982 if (ret < 0) 1983 goto put_pm; 1984 1985 dev->alloc_ctx = vb2_dma_contig_init_ctx(&pdev->dev); 1986 if (IS_ERR(dev->alloc_ctx)) { 1987 v4l2_err(&dev->v4l2_dev, "Failed to alloc vb2 context\n"); 1988 goto put_pm; 1989 } 1990 1991 dev->m2m_dev = v4l2_m2m_init(&coda_m2m_ops); 1992 if (IS_ERR(dev->m2m_dev)) { 1993 v4l2_err(&dev->v4l2_dev, "Failed to init mem2mem device\n"); 1994 goto rel_ctx; 1995 } 1996 1997 for (i = 0; i < dev->devtype->num_vdevs; i++) { 1998 ret = coda_register_device(dev, i); 1999 if (ret) { 2000 v4l2_err(&dev->v4l2_dev, 2001 "Failed to register %s video device: %d\n", 2002 dev->devtype->vdevs[i]->name, ret); 2003 goto rel_vfd; 2004 } 2005 } 2006 2007 v4l2_info(&dev->v4l2_dev, "codec registered as /dev/video[%d-%d]\n", 2008 dev->vfd[0].num, dev->vfd[i - 1].num); 2009 2010 pm_runtime_put_sync(&pdev->dev); 2011 return; 2012 2013rel_vfd: 2014 while (--i >= 0) 2015 video_unregister_device(&dev->vfd[i]); 2016 v4l2_m2m_release(dev->m2m_dev); 2017rel_ctx: 2018 vb2_dma_contig_cleanup_ctx(dev->alloc_ctx); 2019put_pm: 2020 pm_runtime_put_sync(&pdev->dev); 2021} 2022 2023static int coda_firmware_request(struct coda_dev *dev) 2024{ 2025 char *fw = dev->devtype->firmware; 2026 2027 dev_dbg(&dev->plat_dev->dev, "requesting firmware '%s' for %s\n", fw, 2028 coda_product_name(dev->devtype->product)); 2029 2030 return request_firmware_nowait(THIS_MODULE, true, 2031 fw, &dev->plat_dev->dev, GFP_KERNEL, dev, coda_fw_callback); 2032} 2033 2034enum coda_platform { 2035 CODA_IMX27, 2036 CODA_IMX53, 2037 CODA_IMX6Q, 2038 CODA_IMX6DL, 2039}; 2040 2041static const struct coda_devtype coda_devdata[] = { 2042 [CODA_IMX27] = { 2043 .firmware = "v4l-codadx6-imx27.bin", 2044 .product = CODA_DX6, 2045 .codecs = codadx6_codecs, 2046 .num_codecs = ARRAY_SIZE(codadx6_codecs), 2047 .vdevs = codadx6_video_devices, 2048 .num_vdevs = ARRAY_SIZE(codadx6_video_devices), 2049 .workbuf_size = 288 * 1024 + FMO_SLICE_SAVE_BUF_SIZE * 8 * 1024, 2050 .iram_size = 0xb000, 2051 }, 2052 [CODA_IMX53] = { 2053 .firmware = "v4l-coda7541-imx53.bin", 2054 .product = CODA_7541, 2055 .codecs = coda7_codecs, 2056 .num_codecs = ARRAY_SIZE(coda7_codecs), 2057 .vdevs = coda7_video_devices, 2058 .num_vdevs = ARRAY_SIZE(coda7_video_devices), 2059 .workbuf_size = 128 * 1024, 2060 .tempbuf_size = 304 * 1024, 2061 .iram_size = 0x14000, 2062 }, 2063 [CODA_IMX6Q] = { 2064 .firmware = "v4l-coda960-imx6q.bin", 2065 .product = CODA_960, 2066 .codecs = coda9_codecs, 2067 .num_codecs = ARRAY_SIZE(coda9_codecs), 2068 .vdevs = coda9_video_devices, 2069 .num_vdevs = ARRAY_SIZE(coda9_video_devices), 2070 .workbuf_size = 80 * 1024, 2071 .tempbuf_size = 204 * 1024, 2072 .iram_size = 0x21000, 2073 }, 2074 [CODA_IMX6DL] = { 2075 .firmware = "v4l-coda960-imx6dl.bin", 2076 .product = CODA_960, 2077 .codecs = coda9_codecs, 2078 .num_codecs = ARRAY_SIZE(coda9_codecs), 2079 .vdevs = coda9_video_devices, 2080 .num_vdevs = ARRAY_SIZE(coda9_video_devices), 2081 .workbuf_size = 80 * 1024, 2082 .tempbuf_size = 204 * 1024, 2083 .iram_size = 0x20000, 2084 }, 2085}; 2086 2087static struct platform_device_id coda_platform_ids[] = { 2088 { .name = "coda-imx27", .driver_data = CODA_IMX27 }, 2089 { /* sentinel */ } 2090}; 2091MODULE_DEVICE_TABLE(platform, coda_platform_ids); 2092 2093#ifdef CONFIG_OF 2094static const struct of_device_id coda_dt_ids[] = { 2095 { .compatible = "fsl,imx27-vpu", .data = &coda_devdata[CODA_IMX27] }, 2096 { .compatible = "fsl,imx53-vpu", .data = &coda_devdata[CODA_IMX53] }, 2097 { .compatible = "fsl,imx6q-vpu", .data = &coda_devdata[CODA_IMX6Q] }, 2098 { .compatible = "fsl,imx6dl-vpu", .data = &coda_devdata[CODA_IMX6DL] }, 2099 { /* sentinel */ } 2100}; 2101MODULE_DEVICE_TABLE(of, coda_dt_ids); 2102#endif 2103 2104static int coda_probe(struct platform_device *pdev) 2105{ 2106 const struct of_device_id *of_id = 2107 of_match_device(of_match_ptr(coda_dt_ids), &pdev->dev); 2108 const struct platform_device_id *pdev_id; 2109 struct coda_platform_data *pdata = pdev->dev.platform_data; 2110 struct device_node *np = pdev->dev.of_node; 2111 struct gen_pool *pool; 2112 struct coda_dev *dev; 2113 struct resource *res; 2114 int ret, irq; 2115 2116 dev = devm_kzalloc(&pdev->dev, sizeof(*dev), GFP_KERNEL); 2117 if (!dev) 2118 return -ENOMEM; 2119 2120 pdev_id = of_id ? of_id->data : platform_get_device_id(pdev); 2121 2122 if (of_id) 2123 dev->devtype = of_id->data; 2124 else if (pdev_id) 2125 dev->devtype = &coda_devdata[pdev_id->driver_data]; 2126 else 2127 return -EINVAL; 2128 2129 spin_lock_init(&dev->irqlock); 2130 INIT_LIST_HEAD(&dev->instances); 2131 2132 dev->plat_dev = pdev; 2133 dev->clk_per = devm_clk_get(&pdev->dev, "per"); 2134 if (IS_ERR(dev->clk_per)) { 2135 dev_err(&pdev->dev, "Could not get per clock\n"); 2136 return PTR_ERR(dev->clk_per); 2137 } 2138 2139 dev->clk_ahb = devm_clk_get(&pdev->dev, "ahb"); 2140 if (IS_ERR(dev->clk_ahb)) { 2141 dev_err(&pdev->dev, "Could not get ahb clock\n"); 2142 return PTR_ERR(dev->clk_ahb); 2143 } 2144 2145 /* Get memory for physical registers */ 2146 res = platform_get_resource(pdev, IORESOURCE_MEM, 0); 2147 dev->regs_base = devm_ioremap_resource(&pdev->dev, res); 2148 if (IS_ERR(dev->regs_base)) 2149 return PTR_ERR(dev->regs_base); 2150 2151 /* IRQ */ 2152 irq = platform_get_irq_byname(pdev, "bit"); 2153 if (irq < 0) 2154 irq = platform_get_irq(pdev, 0); 2155 if (irq < 0) { 2156 dev_err(&pdev->dev, "failed to get irq resource\n"); 2157 return irq; 2158 } 2159 2160 ret = devm_request_threaded_irq(&pdev->dev, irq, NULL, coda_irq_handler, 2161 IRQF_ONESHOT, dev_name(&pdev->dev), dev); 2162 if (ret < 0) { 2163 dev_err(&pdev->dev, "failed to request irq: %d\n", ret); 2164 return ret; 2165 } 2166 2167 dev->rstc = devm_reset_control_get_optional(&pdev->dev, NULL); 2168 if (IS_ERR(dev->rstc)) { 2169 ret = PTR_ERR(dev->rstc); 2170 if (ret == -ENOENT || ret == -ENOSYS) { 2171 dev->rstc = NULL; 2172 } else { 2173 dev_err(&pdev->dev, "failed get reset control: %d\n", 2174 ret); 2175 return ret; 2176 } 2177 } 2178 2179 /* Get IRAM pool from device tree or platform data */ 2180 pool = of_gen_pool_get(np, "iram", 0); 2181 if (!pool && pdata) 2182 pool = gen_pool_get(pdata->iram_dev, NULL); 2183 if (!pool) { 2184 dev_err(&pdev->dev, "iram pool not available\n"); 2185 return -ENOMEM; 2186 } 2187 dev->iram_pool = pool; 2188 2189 ret = v4l2_device_register(&pdev->dev, &dev->v4l2_dev); 2190 if (ret) 2191 return ret; 2192 2193 mutex_init(&dev->dev_mutex); 2194 mutex_init(&dev->coda_mutex); 2195 2196 dev->debugfs_root = debugfs_create_dir("coda", NULL); 2197 if (!dev->debugfs_root) 2198 dev_warn(&pdev->dev, "failed to create debugfs root\n"); 2199 2200 /* allocate auxiliary per-device buffers for the BIT processor */ 2201 if (dev->devtype->product == CODA_DX6) { 2202 ret = coda_alloc_aux_buf(dev, &dev->workbuf, 2203 dev->devtype->workbuf_size, "workbuf", 2204 dev->debugfs_root); 2205 if (ret < 0) 2206 goto err_v4l2_register; 2207 } 2208 2209 if (dev->devtype->tempbuf_size) { 2210 ret = coda_alloc_aux_buf(dev, &dev->tempbuf, 2211 dev->devtype->tempbuf_size, "tempbuf", 2212 dev->debugfs_root); 2213 if (ret < 0) 2214 goto err_v4l2_register; 2215 } 2216 2217 dev->iram.size = dev->devtype->iram_size; 2218 dev->iram.vaddr = gen_pool_dma_alloc(dev->iram_pool, dev->iram.size, 2219 &dev->iram.paddr); 2220 if (!dev->iram.vaddr) { 2221 dev_warn(&pdev->dev, "unable to alloc iram\n"); 2222 } else { 2223 memset(dev->iram.vaddr, 0, dev->iram.size); 2224 dev->iram.blob.data = dev->iram.vaddr; 2225 dev->iram.blob.size = dev->iram.size; 2226 dev->iram.dentry = debugfs_create_blob("iram", 0644, 2227 dev->debugfs_root, 2228 &dev->iram.blob); 2229 } 2230 2231 dev->workqueue = alloc_workqueue("coda", WQ_UNBOUND | WQ_MEM_RECLAIM, 1); 2232 if (!dev->workqueue) { 2233 dev_err(&pdev->dev, "unable to alloc workqueue\n"); 2234 ret = -ENOMEM; 2235 goto err_v4l2_register; 2236 } 2237 2238 platform_set_drvdata(pdev, dev); 2239 2240 /* 2241 * Start activated so we can directly call coda_hw_init in 2242 * coda_fw_callback regardless of whether CONFIG_PM is 2243 * enabled or whether the device is associated with a PM domain. 2244 */ 2245 pm_runtime_get_noresume(&pdev->dev); 2246 pm_runtime_set_active(&pdev->dev); 2247 pm_runtime_enable(&pdev->dev); 2248 2249 return coda_firmware_request(dev); 2250 2251err_v4l2_register: 2252 v4l2_device_unregister(&dev->v4l2_dev); 2253 return ret; 2254} 2255 2256static int coda_remove(struct platform_device *pdev) 2257{ 2258 struct coda_dev *dev = platform_get_drvdata(pdev); 2259 int i; 2260 2261 for (i = 0; i < ARRAY_SIZE(dev->vfd); i++) { 2262 if (video_get_drvdata(&dev->vfd[i])) 2263 video_unregister_device(&dev->vfd[i]); 2264 } 2265 if (dev->m2m_dev) 2266 v4l2_m2m_release(dev->m2m_dev); 2267 pm_runtime_disable(&pdev->dev); 2268 if (dev->alloc_ctx) 2269 vb2_dma_contig_cleanup_ctx(dev->alloc_ctx); 2270 v4l2_device_unregister(&dev->v4l2_dev); 2271 destroy_workqueue(dev->workqueue); 2272 if (dev->iram.vaddr) 2273 gen_pool_free(dev->iram_pool, (unsigned long)dev->iram.vaddr, 2274 dev->iram.size); 2275 coda_free_aux_buf(dev, &dev->codebuf); 2276 coda_free_aux_buf(dev, &dev->tempbuf); 2277 coda_free_aux_buf(dev, &dev->workbuf); 2278 debugfs_remove_recursive(dev->debugfs_root); 2279 return 0; 2280} 2281 2282#ifdef CONFIG_PM 2283static int coda_runtime_resume(struct device *dev) 2284{ 2285 struct coda_dev *cdev = dev_get_drvdata(dev); 2286 int ret = 0; 2287 2288 if (dev->pm_domain && cdev->codebuf.vaddr) { 2289 ret = coda_hw_init(cdev); 2290 if (ret) 2291 v4l2_err(&cdev->v4l2_dev, "HW initialization failed\n"); 2292 } 2293 2294 return ret; 2295} 2296#endif 2297 2298static const struct dev_pm_ops coda_pm_ops = { 2299 SET_RUNTIME_PM_OPS(NULL, coda_runtime_resume, NULL) 2300}; 2301 2302static struct platform_driver coda_driver = { 2303 .probe = coda_probe, 2304 .remove = coda_remove, 2305 .driver = { 2306 .name = CODA_NAME, 2307 .of_match_table = of_match_ptr(coda_dt_ids), 2308 .pm = &coda_pm_ops, 2309 }, 2310 .id_table = coda_platform_ids, 2311}; 2312 2313module_platform_driver(coda_driver); 2314 2315MODULE_LICENSE("GPL"); 2316MODULE_AUTHOR("Javier Martin <javier.martin@vista-silicon.com>"); 2317MODULE_DESCRIPTION("Coda multi-standard codec V4L2 driver"); 2318