drivers/media/platform/coda/coda-common.c

   1 // SPDX-License-Identifier: GPL-2.0-or-later
   2 /*
   3  * Coda multi-standard codec IP
   4  *
   5  * Copyright (C) 2012 Vista Silicon S.L.
   6  *    Javier Martin, <javier.martin@vista-silicon.com>
   7  *    Xavier Duret
   8  */
   9
  10 #include <linux/clk.h>
  11 #include <linux/debugfs.h>
  12 #include <linux/delay.h>
  13 #include <linux/firmware.h>
  14 #include <linux/gcd.h>
  15 #include <linux/genalloc.h>
  16 #include <linux/idr.h>
  17 #include <linux/interrupt.h>
  18 #include <linux/io.h>
  19 #include <linux/irq.h>
  20 #include <linux/kfifo.h>
  21 #include <linux/module.h>
  22 #include <linux/of_device.h>
  23 #include <linux/platform_device.h>
  24 #include <linux/pm_runtime.h>
  25 #include <linux/slab.h>
  26 #include <linux/videodev2.h>
  27 #include <linux/of.h>
  28 #include <linux/platform_data/media/coda.h>
  29 #include <linux/reset.h>
  30
  31 #include <media/v4l2-ctrls.h>
  32 #include <media/v4l2-device.h>
  33 #include <media/v4l2-event.h>
  34 #include <media/v4l2-ioctl.h>
  35 #include <media/v4l2-mem2mem.h>
  36 #include <media/videobuf2-v4l2.h>
  37 #include <media/videobuf2-dma-contig.h>
  38 #include <media/videobuf2-vmalloc.h>
  39
  40 #include "coda.h"
  41 #include "imx-vdoa.h"
  42
  43 #define CODA_NAME               "coda"
  44
  45 #define CODADX6_MAX_INSTANCES   4
  46 #define CODA_MAX_FORMATS        4
  47
  48 #define CODA_ISRAM_SIZE (2048 * 2)
  49
  50 #define MIN_W 48
  51 #define MIN_H 16
  52
  53 #define S_ALIGN         1 /* multiple of 2 */
  54 #define W_ALIGN         1 /* multiple of 2 */
  55 #define H_ALIGN         1 /* multiple of 2 */
  56
  57 #define fh_to_ctx(__fh) container_of(__fh, struct coda_ctx, fh)
  58
  59 int coda_debug;
  60 module_param(coda_debug, int, 0644);
  61 MODULE_PARM_DESC(coda_debug, "Debug level (0-2)");
  62
  63 static int disable_tiling;
  64 module_param(disable_tiling, int, 0644);
  65 MODULE_PARM_DESC(disable_tiling, "Disable tiled frame buffers");
  66
  67 static int disable_vdoa;
  68 module_param(disable_vdoa, int, 0644);
  69 MODULE_PARM_DESC(disable_vdoa, "Disable Video Data Order Adapter tiled to raster-scan conversion");
  70
  71 static int enable_bwb = 0;
  72 module_param(enable_bwb, int, 0644);
  73 MODULE_PARM_DESC(enable_bwb, "Enable BWB unit for decoding, may crash on certain streams");
  74
  75 void coda_write(struct coda_dev *dev, u32 data, u32 reg)
  76 {
  77         v4l2_dbg(3, coda_debug, &dev->v4l2_dev,
  78                  "%s: data=0x%x, reg=0x%x\n", __func__, data, reg);
  79         writel(data, dev->regs_base + reg);
  80 }
  81
  82 unsigned int coda_read(struct coda_dev *dev, u32 reg)
  83 {
  84         u32 data;
  85
  86         data = readl(dev->regs_base + reg);
  87         v4l2_dbg(3, coda_debug, &dev->v4l2_dev,
  88                  "%s: data=0x%x, reg=0x%x\n", __func__, data, reg);
  89         return data;
  90 }
  91
  92 void coda_write_base(struct coda_ctx *ctx, struct coda_q_data *q_data,
  93                      struct vb2_v4l2_buffer *buf, unsigned int reg_y)
  94 {
  95         u32 base_y = vb2_dma_contig_plane_dma_addr(&buf->vb2_buf, 0);
  96         u32 base_cb, base_cr;
  97
  98         switch (q_data->fourcc) {
  99         case V4L2_PIX_FMT_YUYV:
 100                 /* Fallthrough: IN -H264-> CODA -NV12 MB-> VDOA -YUYV-> OUT */
 101         case V4L2_PIX_FMT_NV12:
 102         case V4L2_PIX_FMT_YUV420:
 103         default:
 104                 base_cb = base_y + q_data->bytesperline * q_data->height;
 105                 base_cr = base_cb + q_data->bytesperline * q_data->height / 4;
 106                 break;
 107         case V4L2_PIX_FMT_YVU420:
 108                 /* Switch Cb and Cr for YVU420 format */
 109                 base_cr = base_y + q_data->bytesperline * q_data->height;
 110                 base_cb = base_cr + q_data->bytesperline * q_data->height / 4;
 111                 break;
 112         case V4L2_PIX_FMT_YUV422P:
 113                 base_cb = base_y + q_data->bytesperline * q_data->height;
 114                 base_cr = base_cb + q_data->bytesperline * q_data->height / 2;
 115         }
 116
 117         coda_write(ctx->dev, base_y, reg_y);
 118         coda_write(ctx->dev, base_cb, reg_y + 4);
 119         coda_write(ctx->dev, base_cr, reg_y + 8);
 120 }
 121
 122 #define CODA_CODEC(mode, src_fourcc, dst_fourcc, max_w, max_h) \
 123         { mode, src_fourcc, dst_fourcc, max_w, max_h }
 124
 125 /*
 126  * Arrays of codecs supported by each given version of Coda:
 127  *  i.MX27 -> codadx6
 128  *  i.MX51 -> codahx4
 129  *  i.MX53 -> coda7
 130  *  i.MX6  -> coda960
 131  * Use V4L2_PIX_FMT_YUV420 as placeholder for all supported YUV 4:2:0 variants
 132  */
 133 static const struct coda_codec codadx6_codecs[] = {
 134         CODA_CODEC(CODADX6_MODE_ENCODE_H264, V4L2_PIX_FMT_YUV420, V4L2_PIX_FMT_H264,  720, 576),
 135         CODA_CODEC(CODADX6_MODE_ENCODE_MP4,  V4L2_PIX_FMT_YUV420, V4L2_PIX_FMT_MPEG4, 720, 576),
 136 };
 137
 138 static const struct coda_codec codahx4_codecs[] = {
 139         CODA_CODEC(CODA7_MODE_ENCODE_H264, V4L2_PIX_FMT_YUV420, V4L2_PIX_FMT_H264,   720, 576),
 140         CODA_CODEC(CODA7_MODE_DECODE_H264, V4L2_PIX_FMT_H264,   V4L2_PIX_FMT_YUV420, 1920, 1088),
 141         CODA_CODEC(CODA7_MODE_DECODE_MP2,  V4L2_PIX_FMT_MPEG2,  V4L2_PIX_FMT_YUV420, 1920, 1088),
 142         CODA_CODEC(CODA7_MODE_DECODE_MP4,  V4L2_PIX_FMT_MPEG4,  V4L2_PIX_FMT_YUV420, 1280, 720),
 143 };
 144
 145 static const struct coda_codec coda7_codecs[] = {
 146         CODA_CODEC(CODA7_MODE_ENCODE_H264, V4L2_PIX_FMT_YUV420, V4L2_PIX_FMT_H264,   1280, 720),
 147         CODA_CODEC(CODA7_MODE_ENCODE_MP4,  V4L2_PIX_FMT_YUV420, V4L2_PIX_FMT_MPEG4,  1280, 720),
 148         CODA_CODEC(CODA7_MODE_ENCODE_MJPG, V4L2_PIX_FMT_YUV420, V4L2_PIX_FMT_JPEG,   8192, 8192),
 149         CODA_CODEC(CODA7_MODE_DECODE_H264, V4L2_PIX_FMT_H264,   V4L2_PIX_FMT_YUV420, 1920, 1088),
 150         CODA_CODEC(CODA7_MODE_DECODE_MP2,  V4L2_PIX_FMT_MPEG2,  V4L2_PIX_FMT_YUV420, 1920, 1088),
 151         CODA_CODEC(CODA7_MODE_DECODE_MP4,  V4L2_PIX_FMT_MPEG4,  V4L2_PIX_FMT_YUV420, 1920, 1088),
 152         CODA_CODEC(CODA7_MODE_DECODE_MJPG, V4L2_PIX_FMT_JPEG,   V4L2_PIX_FMT_YUV420, 8192, 8192),
 153 };
 154
 155 static const struct coda_codec coda9_codecs[] = {
 156         CODA_CODEC(CODA9_MODE_ENCODE_H264, V4L2_PIX_FMT_YUV420, V4L2_PIX_FMT_H264,   1920, 1088),
 157         CODA_CODEC(CODA9_MODE_ENCODE_MP4,  V4L2_PIX_FMT_YUV420, V4L2_PIX_FMT_MPEG4,  1920, 1088),
 158         CODA_CODEC(CODA9_MODE_ENCODE_MJPG, V4L2_PIX_FMT_YUV420, V4L2_PIX_FMT_JPEG,   8192, 8192),
 159         CODA_CODEC(CODA9_MODE_DECODE_H264, V4L2_PIX_FMT_H264,   V4L2_PIX_FMT_YUV420, 1920, 1088),
 160         CODA_CODEC(CODA9_MODE_DECODE_MP2,  V4L2_PIX_FMT_MPEG2,  V4L2_PIX_FMT_YUV420, 1920, 1088),
 161         CODA_CODEC(CODA9_MODE_DECODE_MP4,  V4L2_PIX_FMT_MPEG4,  V4L2_PIX_FMT_YUV420, 1920, 1088),
 162 };
 163
 164 struct coda_video_device {
 165         const char *name;
 166         enum coda_inst_type type;
 167         const struct coda_context_ops *ops;
 168         bool direct;
 169         u32 src_formats[CODA_MAX_FORMATS];
 170         u32 dst_formats[CODA_MAX_FORMATS];
 171 };
 172
 173 static const struct coda_video_device coda_bit_encoder = {
 174         .name = "coda-encoder",
 175         .type = CODA_INST_ENCODER,
 176         .ops = &coda_bit_encode_ops,
 177         .src_formats = {
 178                 V4L2_PIX_FMT_NV12,
 179                 V4L2_PIX_FMT_YUV420,
 180                 V4L2_PIX_FMT_YVU420,
 181         },
 182         .dst_formats = {
 183                 V4L2_PIX_FMT_H264,
 184                 V4L2_PIX_FMT_MPEG4,
 185         },
 186 };
 187
 188 static const struct coda_video_device coda_bit_jpeg_encoder = {
 189         .name = "coda-jpeg-encoder",
 190         .type = CODA_INST_ENCODER,
 191         .ops = &coda_bit_encode_ops,
 192         .src_formats = {
 193                 V4L2_PIX_FMT_NV12,
 194                 V4L2_PIX_FMT_YUV420,
 195                 V4L2_PIX_FMT_YVU420,
 196                 V4L2_PIX_FMT_YUV422P,
 197         },
 198         .dst_formats = {
 199                 V4L2_PIX_FMT_JPEG,
 200         },
 201 };
 202
 203 static const struct coda_video_device coda_bit_decoder = {
 204         .name = "coda-decoder",
 205         .type = CODA_INST_DECODER,
 206         .ops = &coda_bit_decode_ops,
 207         .src_formats = {
 208                 V4L2_PIX_FMT_H264,
 209                 V4L2_PIX_FMT_MPEG2,
 210                 V4L2_PIX_FMT_MPEG4,
 211         },
 212         .dst_formats = {
 213                 V4L2_PIX_FMT_NV12,
 214                 V4L2_PIX_FMT_YUV420,
 215                 V4L2_PIX_FMT_YVU420,
 216                 /*
 217                  * If V4L2_PIX_FMT_YUYV should be default,
 218                  * set_default_params() must be adjusted.
 219                  */
 220                 V4L2_PIX_FMT_YUYV,
 221         },
 222 };
 223
 224 static const struct coda_video_device coda_bit_jpeg_decoder = {
 225         .name = "coda-jpeg-decoder",
 226         .type = CODA_INST_DECODER,
 227         .ops = &coda_bit_decode_ops,
 228         .src_formats = {
 229                 V4L2_PIX_FMT_JPEG,
 230         },
 231         .dst_formats = {
 232                 V4L2_PIX_FMT_NV12,
 233                 V4L2_PIX_FMT_YUV420,
 234                 V4L2_PIX_FMT_YVU420,
 235                 V4L2_PIX_FMT_YUV422P,
 236         },
 237 };
 238
 239 static const struct coda_video_device coda9_jpeg_encoder = {
 240         .name = "coda-jpeg-encoder",
 241         .type = CODA_INST_ENCODER,
 242         .ops = &coda9_jpeg_encode_ops,
 243         .direct = true,
 244         .src_formats = {
 245                 V4L2_PIX_FMT_NV12,
 246                 V4L2_PIX_FMT_YUV420,
 247                 V4L2_PIX_FMT_YVU420,
 248                 V4L2_PIX_FMT_YUV422P,
 249         },
 250         .dst_formats = {
 251                 V4L2_PIX_FMT_JPEG,
 252         },
 253 };
 254
 255 static const struct coda_video_device *codadx6_video_devices[] = {
 256         &coda_bit_encoder,
 257 };
 258
 259 static const struct coda_video_device *codahx4_video_devices[] = {
 260         &coda_bit_encoder,
 261         &coda_bit_decoder,
 262 };
 263
 264 static const struct coda_video_device *coda7_video_devices[] = {
 265         &coda_bit_jpeg_encoder,
 266         &coda_bit_jpeg_decoder,
 267         &coda_bit_encoder,
 268         &coda_bit_decoder,
 269 };
 270
 271 static const struct coda_video_device *coda9_video_devices[] = {
 272         &coda9_jpeg_encoder,
 273         &coda_bit_encoder,
 274         &coda_bit_decoder,
 275 };
 276
 277 /*
 278  * Normalize all supported YUV 4:2:0 formats to the value used in the codec
 279  * tables.
 280  */
 281 static u32 coda_format_normalize_yuv(u32 fourcc)
 282 {
 283         switch (fourcc) {
 284         case V4L2_PIX_FMT_NV12:
 285         case V4L2_PIX_FMT_YUV420:
 286         case V4L2_PIX_FMT_YVU420:
 287         case V4L2_PIX_FMT_YUV422P:
 288         case V4L2_PIX_FMT_YUYV:
 289                 return V4L2_PIX_FMT_YUV420;
 290         default:
 291                 return fourcc;
 292         }
 293 }
 294
 295 static const struct coda_codec *coda_find_codec(struct coda_dev *dev,
 296                                                 int src_fourcc, int dst_fourcc)
 297 {
 298         const struct coda_codec *codecs = dev->devtype->codecs;
 299         int num_codecs = dev->devtype->num_codecs;
 300         int k;
 301
 302         src_fourcc = coda_format_normalize_yuv(src_fourcc);
 303         dst_fourcc = coda_format_normalize_yuv(dst_fourcc);
 304         if (src_fourcc == dst_fourcc)
 305                 return NULL;
 306
 307         for (k = 0; k < num_codecs; k++) {
 308                 if (codecs[k].src_fourcc == src_fourcc &&
 309                     codecs[k].dst_fourcc == dst_fourcc)
 310                         break;
 311         }
 312
 313         if (k == num_codecs)
 314                 return NULL;
 315
 316         return &codecs[k];
 317 }
 318
 319 static void coda_get_max_dimensions(struct coda_dev *dev,
 320                                     const struct coda_codec *codec,
 321                                     int *max_w, int *max_h)
 322 {
 323         const struct coda_codec *codecs = dev->devtype->codecs;
 324         int num_codecs = dev->devtype->num_codecs;
 325         unsigned int w, h;
 326         int k;
 327
 328         if (codec) {
 329                 w = codec->max_w;
 330                 h = codec->max_h;
 331         } else {
 332                 for (k = 0, w = 0, h = 0; k < num_codecs; k++) {
 333                         w = max(w, codecs[k].max_w);
 334                         h = max(h, codecs[k].max_h);
 335                 }
 336         }
 337
 338         if (max_w)
 339                 *max_w = w;
 340         if (max_h)
 341                 *max_h = h;
 342 }
 343
 344 static const struct coda_video_device *to_coda_video_device(struct video_device
 345                                                             *vdev)
 346 {
 347         struct coda_dev *dev = video_get_drvdata(vdev);
 348         unsigned int i = vdev - dev->vfd;
 349
 350         if (i >= dev->devtype->num_vdevs)
 351                 return NULL;
 352
 353         return dev->devtype->vdevs[i];
 354 }
 355
 356 const char *coda_product_name(int product)
 357 {
 358         static char buf[9];
 359
 360         switch (product) {
 361         case CODA_DX6:
 362                 return "CodaDx6";
 363         case CODA_HX4:
 364                 return "CodaHx4";
 365         case CODA_7541:
 366                 return "CODA7541";
 367         case CODA_960:
 368                 return "CODA960";
 369         default:
 370                 snprintf(buf, sizeof(buf), "(0x%04x)", product);
 371                 return buf;
 372         }
 373 }
 374
 375 static struct vdoa_data *coda_get_vdoa_data(void)
 376 {
 377         struct device_node *vdoa_node;
 378         struct platform_device *vdoa_pdev;
 379         struct vdoa_data *vdoa_data = NULL;
 380
 381         vdoa_node = of_find_compatible_node(NULL, NULL, "fsl,imx6q-vdoa");
 382         if (!vdoa_node)
 383                 return NULL;
 384
 385         vdoa_pdev = of_find_device_by_node(vdoa_node);
 386         if (!vdoa_pdev)
 387                 goto out;
 388
 389         vdoa_data = platform_get_drvdata(vdoa_pdev);
 390         if (!vdoa_data)
 391                 vdoa_data = ERR_PTR(-EPROBE_DEFER);
 392
 393 out:
 394         of_node_put(vdoa_node);
 395
 396         return vdoa_data;
 397 }
 398
 399 /*
 400  * V4L2 ioctl() operations.
 401  */
 402 static int coda_querycap(struct file *file, void *priv,
 403                          struct v4l2_capability *cap)
 404 {
 405         struct coda_ctx *ctx = fh_to_ctx(priv);
 406
 407         strscpy(cap->driver, CODA_NAME, sizeof(cap->driver));
 408         strscpy(cap->card, coda_product_name(ctx->dev->devtype->product),
 409                 sizeof(cap->card));
 410         strscpy(cap->bus_info, "platform:" CODA_NAME, sizeof(cap->bus_info));
 411         return 0;
 412 }
 413
 414 static int coda_enum_fmt(struct file *file, void *priv,
 415                          struct v4l2_fmtdesc *f)
 416 {
 417         struct video_device *vdev = video_devdata(file);
 418         const struct coda_video_device *cvd = to_coda_video_device(vdev);
 419         struct coda_ctx *ctx = fh_to_ctx(priv);
 420         const u32 *formats;
 421
 422         if (f->type == V4L2_BUF_TYPE_VIDEO_OUTPUT)
 423                 formats = cvd->src_formats;
 424         else if (f->type == V4L2_BUF_TYPE_VIDEO_CAPTURE)
 425                 formats = cvd->dst_formats;
 426         else
 427                 return -EINVAL;
 428
 429         if (f->index >= CODA_MAX_FORMATS || formats[f->index] == 0)
 430                 return -EINVAL;
 431
 432         /* Skip YUYV if the vdoa is not available */
 433         if (!ctx->vdoa && f->type == V4L2_BUF_TYPE_VIDEO_CAPTURE &&
 434             formats[f->index] == V4L2_PIX_FMT_YUYV)
 435                 return -EINVAL;
 436
 437         f->pixelformat = formats[f->index];
 438
 439         return 0;
 440 }
 441
 442 static int coda_g_fmt(struct file *file, void *priv,
 443                       struct v4l2_format *f)
 444 {
 445         struct coda_q_data *q_data;
 446         struct coda_ctx *ctx = fh_to_ctx(priv);
 447
 448         q_data = get_q_data(ctx, f->type);
 449         if (!q_data)
 450                 return -EINVAL;
 451
 452         f->fmt.pix.field        = V4L2_FIELD_NONE;
 453         f->fmt.pix.pixelformat  = q_data->fourcc;
 454         f->fmt.pix.width        = q_data->width;
 455         f->fmt.pix.height       = q_data->height;
 456         f->fmt.pix.bytesperline = q_data->bytesperline;
 457
 458         f->fmt.pix.sizeimage    = q_data->sizeimage;
 459         f->fmt.pix.colorspace   = ctx->colorspace;
 460         f->fmt.pix.xfer_func    = ctx->xfer_func;
 461         f->fmt.pix.ycbcr_enc    = ctx->ycbcr_enc;
 462         f->fmt.pix.quantization = ctx->quantization;
 463
 464         return 0;
 465 }
 466
 467 static int coda_try_pixelformat(struct coda_ctx *ctx, struct v4l2_format *f)
 468 {
 469         struct coda_q_data *q_data;
 470         const u32 *formats;
 471         int i;
 472
 473         if (f->type == V4L2_BUF_TYPE_VIDEO_OUTPUT)
 474                 formats = ctx->cvd->src_formats;
 475         else if (f->type == V4L2_BUF_TYPE_VIDEO_CAPTURE)
 476                 formats = ctx->cvd->dst_formats;
 477         else
 478                 return -EINVAL;
 479
 480         for (i = 0; i < CODA_MAX_FORMATS; i++) {
 481                 /* Skip YUYV if the vdoa is not available */
 482                 if (!ctx->vdoa && f->type == V4L2_BUF_TYPE_VIDEO_CAPTURE &&
 483                     formats[i] == V4L2_PIX_FMT_YUYV)
 484                         continue;
 485
 486                 if (formats[i] == f->fmt.pix.pixelformat) {
 487                         f->fmt.pix.pixelformat = formats[i];
 488                         return 0;
 489                 }
 490         }
 491
 492         /* Fall back to currently set pixelformat */
 493         q_data = get_q_data(ctx, f->type);
 494         f->fmt.pix.pixelformat = q_data->fourcc;
 495
 496         return 0;
 497 }
 498
 499 static int coda_try_fmt_vdoa(struct coda_ctx *ctx, struct v4l2_format *f,
 500                              bool *use_vdoa)
 501 {
 502         int err;
 503
 504         if (f->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
 505                 return -EINVAL;
 506
 507         if (!use_vdoa)
 508                 return -EINVAL;
 509
 510         if (!ctx->vdoa) {
 511                 *use_vdoa = false;
 512                 return 0;
 513         }
 514
 515         err = vdoa_context_configure(NULL, round_up(f->fmt.pix.width, 16),
 516                                      f->fmt.pix.height, f->fmt.pix.pixelformat);
 517         if (err) {
 518                 *use_vdoa = false;
 519                 return 0;
 520         }
 521
 522         *use_vdoa = true;
 523         return 0;
 524 }
 525
 526 static unsigned int coda_estimate_sizeimage(struct coda_ctx *ctx, u32 sizeimage,
 527                                             u32 width, u32 height)
 528 {
 529         /*
 530          * This is a rough estimate for sensible compressed buffer
 531          * sizes (between 1 and 16 bits per pixel). This could be
 532          * improved by better format specific worst case estimates.
 533          */
 534         return round_up(clamp(sizeimage, width * height / 8,
 535                                          width * height * 2), PAGE_SIZE);
 536 }
 537
 538 static int coda_try_fmt(struct coda_ctx *ctx, const struct coda_codec *codec,
 539                         struct v4l2_format *f)
 540 {
 541         struct coda_dev *dev = ctx->dev;
 542         unsigned int max_w, max_h;
 543         enum v4l2_field field;
 544
 545         field = f->fmt.pix.field;
 546         if (field == V4L2_FIELD_ANY)
 547                 field = V4L2_FIELD_NONE;
 548         else if (V4L2_FIELD_NONE != field)
 549                 return -EINVAL;
 550
 551         /* V4L2 specification suggests the driver corrects the format struct
 552          * if any of the dimensions is unsupported */
 553         f->fmt.pix.field = field;
 554
 555         coda_get_max_dimensions(dev, codec, &max_w, &max_h);
 556         v4l_bound_align_image(&f->fmt.pix.width, MIN_W, max_w, W_ALIGN,
 557                               &f->fmt.pix.height, MIN_H, max_h, H_ALIGN,
 558                               S_ALIGN);
 559
 560         switch (f->fmt.pix.pixelformat) {
 561         case V4L2_PIX_FMT_NV12:
 562         case V4L2_PIX_FMT_YUV420:
 563         case V4L2_PIX_FMT_YVU420:
 564                 /*
 565                  * Frame stride must be at least multiple of 8,
 566                  * but multiple of 16 for h.264 or JPEG 4:2:x
 567                  */
 568                 f->fmt.pix.bytesperline = round_up(f->fmt.pix.width, 16);
 569                 f->fmt.pix.sizeimage = f->fmt.pix.bytesperline *
 570                                         f->fmt.pix.height * 3 / 2;
 571                 break;
 572         case V4L2_PIX_FMT_YUYV:
 573                 f->fmt.pix.bytesperline = round_up(f->fmt.pix.width, 16) * 2;
 574                 f->fmt.pix.sizeimage = f->fmt.pix.bytesperline *
 575                                         f->fmt.pix.height;
 576                 break;
 577         case V4L2_PIX_FMT_YUV422P:
 578                 f->fmt.pix.bytesperline = round_up(f->fmt.pix.width, 16);
 579                 f->fmt.pix.sizeimage = f->fmt.pix.bytesperline *
 580                                         f->fmt.pix.height * 2;
 581                 break;
 582         case V4L2_PIX_FMT_JPEG:
 583         case V4L2_PIX_FMT_H264:
 584         case V4L2_PIX_FMT_MPEG4:
 585         case V4L2_PIX_FMT_MPEG2:
 586                 f->fmt.pix.bytesperline = 0;
 587                 f->fmt.pix.sizeimage = coda_estimate_sizeimage(ctx,
 588                                                         f->fmt.pix.sizeimage,
 589                                                         f->fmt.pix.width,
 590                                                         f->fmt.pix.height);
 591                 break;
 592         default:
 593                 BUG();
 594         }
 595
 596         return 0;
 597 }
 598
 599 static int coda_try_fmt_vid_cap(struct file *file, void *priv,
 600                                 struct v4l2_format *f)
 601 {
 602         struct coda_ctx *ctx = fh_to_ctx(priv);
 603         const struct coda_q_data *q_data_src;
 604         const struct coda_codec *codec;
 605         struct vb2_queue *src_vq;
 606         int ret;
 607         bool use_vdoa;
 608
 609         ret = coda_try_pixelformat(ctx, f);
 610         if (ret < 0)
 611                 return ret;
 612
 613         q_data_src = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_OUTPUT);
 614
 615         /*
 616          * If the source format is already fixed, only allow the same output
 617          * resolution
 618          */
 619         src_vq = v4l2_m2m_get_vq(ctx->fh.m2m_ctx, V4L2_BUF_TYPE_VIDEO_OUTPUT);
 620         if (vb2_is_streaming(src_vq)) {
 621                 f->fmt.pix.width = q_data_src->width;
 622                 f->fmt.pix.height = q_data_src->height;
 623         }
 624
 625         f->fmt.pix.colorspace = ctx->colorspace;
 626         f->fmt.pix.xfer_func = ctx->xfer_func;
 627         f->fmt.pix.ycbcr_enc = ctx->ycbcr_enc;
 628         f->fmt.pix.quantization = ctx->quantization;
 629
 630         q_data_src = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_OUTPUT);
 631         codec = coda_find_codec(ctx->dev, q_data_src->fourcc,
 632                                 f->fmt.pix.pixelformat);
 633         if (!codec)
 634                 return -EINVAL;
 635
 636         ret = coda_try_fmt(ctx, codec, f);
 637         if (ret < 0)
 638                 return ret;
 639
 640         /* The h.264 decoder only returns complete 16x16 macroblocks */
 641         if (codec && codec->src_fourcc == V4L2_PIX_FMT_H264) {
 642                 f->fmt.pix.height = round_up(f->fmt.pix.height, 16);
 643                 f->fmt.pix.bytesperline = round_up(f->fmt.pix.width, 16);
 644                 f->fmt.pix.sizeimage = f->fmt.pix.bytesperline *
 645                                        f->fmt.pix.height * 3 / 2;
 646
 647                 ret = coda_try_fmt_vdoa(ctx, f, &use_vdoa);
 648                 if (ret < 0)
 649                         return ret;
 650
 651                 if (f->fmt.pix.pixelformat == V4L2_PIX_FMT_YUYV) {
 652                         if (!use_vdoa)
 653                                 return -EINVAL;
 654
 655                         f->fmt.pix.bytesperline = round_up(f->fmt.pix.width, 16) * 2;
 656                         f->fmt.pix.sizeimage = f->fmt.pix.bytesperline *
 657                                 f->fmt.pix.height;
 658                 }
 659         }
 660
 661         return 0;
 662 }
 663
 664 static void coda_set_default_colorspace(struct v4l2_pix_format *fmt)
 665 {
 666         enum v4l2_colorspace colorspace;
 667
 668         if (fmt->pixelformat == V4L2_PIX_FMT_JPEG)
 669                 colorspace = V4L2_COLORSPACE_JPEG;
 670         else if (fmt->width <= 720 && fmt->height <= 576)
 671                 colorspace = V4L2_COLORSPACE_SMPTE170M;
 672         else
 673                 colorspace = V4L2_COLORSPACE_REC709;
 674
 675         fmt->colorspace = colorspace;
 676         fmt->xfer_func = V4L2_XFER_FUNC_DEFAULT;
 677         fmt->ycbcr_enc = V4L2_YCBCR_ENC_DEFAULT;
 678         fmt->quantization = V4L2_QUANTIZATION_DEFAULT;
 679 }
 680
 681 static int coda_try_fmt_vid_out(struct file *file, void *priv,
 682                                 struct v4l2_format *f)
 683 {
 684         struct coda_ctx *ctx = fh_to_ctx(priv);
 685         struct coda_dev *dev = ctx->dev;
 686         const struct coda_q_data *q_data_dst;
 687         const struct coda_codec *codec;
 688         int ret;
 689
 690         ret = coda_try_pixelformat(ctx, f);
 691         if (ret < 0)
 692                 return ret;
 693
 694         if (f->fmt.pix.colorspace == V4L2_COLORSPACE_DEFAULT)
 695                 coda_set_default_colorspace(&f->fmt.pix);
 696
 697         q_data_dst = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_CAPTURE);
 698         codec = coda_find_codec(dev, f->fmt.pix.pixelformat, q_data_dst->fourcc);
 699
 700         return coda_try_fmt(ctx, codec, f);
 701 }
 702
 703 static int coda_s_fmt(struct coda_ctx *ctx, struct v4l2_format *f,
 704                       struct v4l2_rect *r)
 705 {
 706         struct coda_q_data *q_data;
 707         struct vb2_queue *vq;
 708
 709         vq = v4l2_m2m_get_vq(ctx->fh.m2m_ctx, f->type);
 710         if (!vq)
 711                 return -EINVAL;
 712
 713         q_data = get_q_data(ctx, f->type);
 714         if (!q_data)
 715                 return -EINVAL;
 716
 717         if (vb2_is_busy(vq)) {
 718                 v4l2_err(&ctx->dev->v4l2_dev, "%s: %s queue busy: %d\n",
 719                          __func__, v4l2_type_names[f->type], vq->num_buffers);
 720                 return -EBUSY;
 721         }
 722
 723         q_data->fourcc = f->fmt.pix.pixelformat;
 724         q_data->width = f->fmt.pix.width;
 725         q_data->height = f->fmt.pix.height;
 726         q_data->bytesperline = f->fmt.pix.bytesperline;
 727         q_data->sizeimage = f->fmt.pix.sizeimage;
 728         if (r) {
 729                 q_data->rect = *r;
 730         } else {
 731                 q_data->rect.left = 0;
 732                 q_data->rect.top = 0;
 733                 q_data->rect.width = f->fmt.pix.width;
 734                 q_data->rect.height = f->fmt.pix.height;
 735         }
 736
 737         switch (f->fmt.pix.pixelformat) {
 738         case V4L2_PIX_FMT_YUYV:
 739                 ctx->tiled_map_type = GDI_TILED_FRAME_MB_RASTER_MAP;
 740                 break;
 741         case V4L2_PIX_FMT_NV12:
 742                 if (!disable_tiling && ctx->use_bit &&
 743                     ctx->dev->devtype->product == CODA_960) {
 744                         ctx->tiled_map_type = GDI_TILED_FRAME_MB_RASTER_MAP;
 745                         break;
 746                 }
 747                 /* else fall through */
 748         case V4L2_PIX_FMT_YUV420:
 749         case V4L2_PIX_FMT_YVU420:
 750                 ctx->tiled_map_type = GDI_LINEAR_FRAME_MAP;
 751                 break;
 752         default:
 753                 break;
 754         }
 755
 756         if (ctx->tiled_map_type == GDI_TILED_FRAME_MB_RASTER_MAP &&
 757             !coda_try_fmt_vdoa(ctx, f, &ctx->use_vdoa) &&
 758             ctx->use_vdoa)
 759                 vdoa_context_configure(ctx->vdoa,
 760                                        round_up(f->fmt.pix.width, 16),
 761                                        f->fmt.pix.height,
 762                                        f->fmt.pix.pixelformat);
 763         else
 764                 ctx->use_vdoa = false;
 765
 766         coda_dbg(1, ctx, "Setting %s format, wxh: %dx%d, fmt: %4.4s %c\n",
 767                  v4l2_type_names[f->type], q_data->width, q_data->height,
 768                  (char *)&q_data->fourcc,
 769                  (ctx->tiled_map_type == GDI_LINEAR_FRAME_MAP) ? 'L' : 'T');
 770
 771         return 0;
 772 }
 773
 774 static int coda_s_fmt_vid_cap(struct file *file, void *priv,
 775                               struct v4l2_format *f)
 776 {
 777         struct coda_ctx *ctx = fh_to_ctx(priv);
 778         struct coda_q_data *q_data_src;
 779         const struct coda_codec *codec;
 780         struct v4l2_rect r;
 781         int ret;
 782
 783         ret = coda_try_fmt_vid_cap(file, priv, f);
 784         if (ret)
 785                 return ret;
 786
 787         q_data_src = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_OUTPUT);
 788         r.left = 0;
 789         r.top = 0;
 790         r.width = q_data_src->width;
 791         r.height = q_data_src->height;
 792
 793         ret = coda_s_fmt(ctx, f, &r);
 794         if (ret)
 795                 return ret;
 796
 797         if (ctx->inst_type != CODA_INST_ENCODER)
 798                 return 0;
 799
 800         /* Setting the coded format determines the selected codec */
 801         codec = coda_find_codec(ctx->dev, q_data_src->fourcc,
 802                                 f->fmt.pix.pixelformat);
 803         if (!codec) {
 804                 v4l2_err(&ctx->dev->v4l2_dev, "failed to determine codec\n");
 805                 return -EINVAL;
 806         }
 807         ctx->codec = codec;
 808
 809         ctx->colorspace = f->fmt.pix.colorspace;
 810         ctx->xfer_func = f->fmt.pix.xfer_func;
 811         ctx->ycbcr_enc = f->fmt.pix.ycbcr_enc;
 812         ctx->quantization = f->fmt.pix.quantization;
 813
 814         return 0;
 815 }
 816
 817 static int coda_s_fmt_vid_out(struct file *file, void *priv,
 818                               struct v4l2_format *f)
 819 {
 820         struct coda_ctx *ctx = fh_to_ctx(priv);
 821         const struct coda_codec *codec;
 822         struct v4l2_format f_cap;
 823         struct vb2_queue *dst_vq;
 824         int ret;
 825
 826         ret = coda_try_fmt_vid_out(file, priv, f);
 827         if (ret)
 828                 return ret;
 829
 830         ret = coda_s_fmt(ctx, f, NULL);
 831         if (ret)
 832                 return ret;
 833
 834         ctx->colorspace = f->fmt.pix.colorspace;
 835         ctx->xfer_func = f->fmt.pix.xfer_func;
 836         ctx->ycbcr_enc = f->fmt.pix.ycbcr_enc;
 837         ctx->quantization = f->fmt.pix.quantization;
 838
 839         if (ctx->inst_type != CODA_INST_DECODER)
 840                 return 0;
 841
 842         /* Setting the coded format determines the selected codec */
 843         codec = coda_find_codec(ctx->dev, f->fmt.pix.pixelformat,
 844                                 V4L2_PIX_FMT_YUV420);
 845         if (!codec) {
 846                 v4l2_err(&ctx->dev->v4l2_dev, "failed to determine codec\n");
 847                 return -EINVAL;
 848         }
 849         ctx->codec = codec;
 850
 851         dst_vq = v4l2_m2m_get_vq(ctx->fh.m2m_ctx, V4L2_BUF_TYPE_VIDEO_CAPTURE);
 852         if (!dst_vq)
 853                 return -EINVAL;
 854
 855         /*
 856          * Setting the capture queue format is not possible while the capture
 857          * queue is still busy. This is not an error, but the user will have to
 858          * make sure themselves that the capture format is set correctly before
 859          * starting the output queue again.
 860          */
 861         if (vb2_is_busy(dst_vq))
 862                 return 0;
 863
 864         memset(&f_cap, 0, sizeof(f_cap));
 865         f_cap.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
 866         coda_g_fmt(file, priv, &f_cap);
 867         f_cap.fmt.pix.width = f->fmt.pix.width;
 868         f_cap.fmt.pix.height = f->fmt.pix.height;
 869
 870         return coda_s_fmt_vid_cap(file, priv, &f_cap);
 871 }
 872
 873 static int coda_reqbufs(struct file *file, void *priv,
 874                         struct v4l2_requestbuffers *rb)
 875 {
 876         struct coda_ctx *ctx = fh_to_ctx(priv);
 877         int ret;
 878
 879         ret = v4l2_m2m_reqbufs(file, ctx->fh.m2m_ctx, rb);
 880         if (ret)
 881                 return ret;
 882
 883         /*
 884          * Allow to allocate instance specific per-context buffers, such as
 885          * bitstream ringbuffer, slice buffer, work buffer, etc. if needed.
 886          */
 887         if (rb->type == V4L2_BUF_TYPE_VIDEO_OUTPUT && ctx->ops->reqbufs)
 888                 return ctx->ops->reqbufs(ctx, rb);
 889
 890         return 0;
 891 }
 892
 893 static int coda_qbuf(struct file *file, void *priv,
 894                      struct v4l2_buffer *buf)
 895 {
 896         struct coda_ctx *ctx = fh_to_ctx(priv);
 897
 898         if (ctx->inst_type == CODA_INST_DECODER &&
 899             buf->type == V4L2_BUF_TYPE_VIDEO_OUTPUT)
 900                 buf->flags &= ~V4L2_BUF_FLAG_LAST;
 901
 902         return v4l2_m2m_qbuf(file, ctx->fh.m2m_ctx, buf);
 903 }
 904
 905 static int coda_dqbuf(struct file *file, void *priv, struct v4l2_buffer *buf)
 906 {
 907         struct coda_ctx *ctx = fh_to_ctx(priv);
 908         int ret;
 909
 910         ret = v4l2_m2m_dqbuf(file, ctx->fh.m2m_ctx, buf);
 911
 912         if (ctx->inst_type == CODA_INST_DECODER &&
 913             buf->type == V4L2_BUF_TYPE_VIDEO_OUTPUT)
 914                 buf->flags &= ~V4L2_BUF_FLAG_LAST;
 915
 916         return ret;
 917 }
 918
 919 void coda_m2m_buf_done(struct coda_ctx *ctx, struct vb2_v4l2_buffer *buf,
 920                        enum vb2_buffer_state state)
 921 {
 922         const struct v4l2_event eos_event = {
 923                 .type = V4L2_EVENT_EOS
 924         };
 925
 926         if (buf->flags & V4L2_BUF_FLAG_LAST)
 927                 v4l2_event_queue_fh(&ctx->fh, &eos_event);
 928
 929         v4l2_m2m_buf_done(buf, state);
 930 }
 931
 932 static int coda_g_selection(struct file *file, void *fh,
 933                             struct v4l2_selection *s)
 934 {
 935         struct coda_ctx *ctx = fh_to_ctx(fh);
 936         struct coda_q_data *q_data;
 937         struct v4l2_rect r, *rsel;
 938
 939         q_data = get_q_data(ctx, s->type);
 940         if (!q_data)
 941                 return -EINVAL;
 942
 943         r.left = 0;
 944         r.top = 0;
 945         r.width = q_data->width;
 946         r.height = q_data->height;
 947         rsel = &q_data->rect;
 948
 949         switch (s->target) {
 950         case V4L2_SEL_TGT_CROP_DEFAULT:
 951         case V4L2_SEL_TGT_CROP_BOUNDS:
 952                 rsel = &r;
 953                 /* fallthrough */
 954         case V4L2_SEL_TGT_CROP:
 955                 if (s->type != V4L2_BUF_TYPE_VIDEO_OUTPUT ||
 956                     ctx->inst_type == CODA_INST_DECODER)
 957                         return -EINVAL;
 958                 break;
 959         case V4L2_SEL_TGT_COMPOSE_BOUNDS:
 960         case V4L2_SEL_TGT_COMPOSE_PADDED:
 961                 rsel = &r;
 962                 /* fallthrough */
 963         case V4L2_SEL_TGT_COMPOSE:
 964         case V4L2_SEL_TGT_COMPOSE_DEFAULT:
 965                 if (s->type != V4L2_BUF_TYPE_VIDEO_CAPTURE ||
 966                     ctx->inst_type == CODA_INST_ENCODER)
 967                         return -EINVAL;
 968                 break;
 969         default:
 970                 return -EINVAL;
 971         }
 972
 973         s->r = *rsel;
 974
 975         return 0;
 976 }
 977
 978 static int coda_s_selection(struct file *file, void *fh,
 979                             struct v4l2_selection *s)
 980 {
 981         struct coda_ctx *ctx = fh_to_ctx(fh);
 982         struct coda_q_data *q_data;
 983
 984         switch (s->target) {
 985         case V4L2_SEL_TGT_CROP:
 986                 if (ctx->inst_type == CODA_INST_ENCODER &&
 987                     s->type == V4L2_BUF_TYPE_VIDEO_OUTPUT) {
 988                         q_data = get_q_data(ctx, s->type);
 989                         if (!q_data)
 990                                 return -EINVAL;
 991
 992                         s->r.left = 0;
 993                         s->r.top = 0;
 994                         s->r.width = clamp(s->r.width, 2U, q_data->width);
 995                         s->r.height = clamp(s->r.height, 2U, q_data->height);
 996
 997                         if (s->flags & V4L2_SEL_FLAG_LE) {
 998                                 s->r.width = round_up(s->r.width, 2);
 999                                 s->r.height = round_up(s->r.height, 2);
1000                         } else {
1001                                 s->r.width = round_down(s->r.width, 2);
1002                                 s->r.height = round_down(s->r.height, 2);
1003                         }
1004
1005                         q_data->rect = s->r;
1006
1007                         coda_dbg(1, ctx, "Setting crop rectangle: %dx%d\n",
1008                                  s->r.width, s->r.height);
1009
1010                         return 0;
1011                 }
1012                 /* else fall through */
1013         case V4L2_SEL_TGT_NATIVE_SIZE:
1014         case V4L2_SEL_TGT_COMPOSE:
1015                 return coda_g_selection(file, fh, s);
1016         default:
1017                 /* v4l2-compliance expects this to fail for read-only targets */
1018                 return -EINVAL;
1019         }
1020 }
1021
1022 static int coda_try_encoder_cmd(struct file *file, void *fh,
1023                                 struct v4l2_encoder_cmd *ec)
1024 {
1025         struct coda_ctx *ctx = fh_to_ctx(fh);
1026
1027         if (ctx->inst_type != CODA_INST_ENCODER)
1028                 return -ENOTTY;
1029
1030         return v4l2_m2m_ioctl_try_encoder_cmd(file, fh, ec);
1031 }
1032
1033 static void coda_wake_up_capture_queue(struct coda_ctx *ctx)
1034 {
1035         struct vb2_queue *dst_vq;
1036
1037         coda_dbg(1, ctx, "waking up capture queue\n");
1038
1039         dst_vq = v4l2_m2m_get_vq(ctx->fh.m2m_ctx, V4L2_BUF_TYPE_VIDEO_CAPTURE);
1040         dst_vq->last_buffer_dequeued = true;
1041         wake_up(&dst_vq->done_wq);
1042 }
1043
1044 static int coda_encoder_cmd(struct file *file, void *fh,
1045                             struct v4l2_encoder_cmd *ec)
1046 {
1047         struct coda_ctx *ctx = fh_to_ctx(fh);
1048         struct vb2_v4l2_buffer *buf;
1049         int ret;
1050
1051         ret = coda_try_encoder_cmd(file, fh, ec);
1052         if (ret < 0)
1053                 return ret;
1054
1055         mutex_lock(&ctx->wakeup_mutex);
1056         buf = v4l2_m2m_last_src_buf(ctx->fh.m2m_ctx);
1057         if (buf) {
1058                 /*
1059                  * If the last output buffer is still on the queue, make sure
1060                  * that decoder finish_run will see the last flag and report it
1061                  * to userspace.
1062                  */
1063                 buf->flags |= V4L2_BUF_FLAG_LAST;
1064         } else {
1065                 /* Set the stream-end flag on this context */
1066                 ctx->bit_stream_param |= CODA_BIT_STREAM_END_FLAG;
1067
1068                 /*
1069                  * If the last output buffer has already been taken from the
1070                  * queue, wake up the capture queue and signal end of stream
1071                  * via the -EPIPE mechanism.
1072                  */
1073                 coda_wake_up_capture_queue(ctx);
1074         }
1075         mutex_unlock(&ctx->wakeup_mutex);
1076
1077         return 0;
1078 }
1079
1080 static int coda_try_decoder_cmd(struct file *file, void *fh,
1081                                 struct v4l2_decoder_cmd *dc)
1082 {
1083         struct coda_ctx *ctx = fh_to_ctx(fh);
1084
1085         if (ctx->inst_type != CODA_INST_DECODER)
1086                 return -ENOTTY;
1087
1088         return v4l2_m2m_ioctl_try_decoder_cmd(file, fh, dc);
1089 }
1090
1091 static int coda_decoder_cmd(struct file *file, void *fh,
1092                             struct v4l2_decoder_cmd *dc)
1093 {
1094         struct coda_ctx *ctx = fh_to_ctx(fh);
1095         struct coda_dev *dev = ctx->dev;
1096         struct vb2_v4l2_buffer *buf;
1097         struct vb2_queue *dst_vq;
1098         bool stream_end;
1099         bool wakeup;
1100         int ret;
1101
1102         ret = coda_try_decoder_cmd(file, fh, dc);
1103         if (ret < 0)
1104                 return ret;
1105
1106         switch (dc->cmd) {
1107         case V4L2_DEC_CMD_START:
1108                 mutex_lock(&dev->coda_mutex);
1109                 mutex_lock(&ctx->bitstream_mutex);
1110                 coda_bitstream_flush(ctx);
1111                 dst_vq = v4l2_m2m_get_vq(ctx->fh.m2m_ctx,
1112                                          V4L2_BUF_TYPE_VIDEO_CAPTURE);
1113                 vb2_clear_last_buffer_dequeued(dst_vq);
1114                 ctx->bit_stream_param &= ~CODA_BIT_STREAM_END_FLAG;
1115                 coda_fill_bitstream(ctx, NULL);
1116                 mutex_unlock(&ctx->bitstream_mutex);
1117                 mutex_unlock(&dev->coda_mutex);
1118                 break;
1119         case V4L2_DEC_CMD_STOP:
1120                 stream_end = false;
1121                 wakeup = false;
1122
1123                 buf = v4l2_m2m_last_src_buf(ctx->fh.m2m_ctx);
1124                 if (buf) {
1125                         coda_dbg(1, ctx, "marking last pending buffer\n");
1126
1127                         /* Mark last buffer */
1128                         buf->flags |= V4L2_BUF_FLAG_LAST;
1129
1130                         if (v4l2_m2m_num_src_bufs_ready(ctx->fh.m2m_ctx) == 0) {
1131                                 coda_dbg(1, ctx, "all remaining buffers queued\n");
1132                                 stream_end = true;
1133                         }
1134                 } else {
1135                         coda_dbg(1, ctx, "marking last meta\n");
1136
1137                         /* Mark last meta */
1138                         spin_lock(&ctx->buffer_meta_lock);
1139                         if (!list_empty(&ctx->buffer_meta_list)) {
1140                                 struct coda_buffer_meta *meta;
1141
1142                                 meta = list_last_entry(&ctx->buffer_meta_list,
1143                                                        struct coda_buffer_meta,
1144                                                        list);
1145                                 meta->last = true;
1146                                 stream_end = true;
1147                         } else {
1148                                 wakeup = true;
1149                         }
1150                         spin_unlock(&ctx->buffer_meta_lock);
1151                 }
1152
1153                 if (stream_end) {
1154                         coda_dbg(1, ctx, "all remaining buffers queued\n");
1155
1156                         /* Set the stream-end flag on this context */
1157                         coda_bit_stream_end_flag(ctx);
1158                         ctx->hold = false;
1159                         v4l2_m2m_try_schedule(ctx->fh.m2m_ctx);
1160                 }
1161
1162                 if (wakeup) {
1163                         /* If there is no buffer in flight, wake up */
1164                         coda_wake_up_capture_queue(ctx);
1165                 }
1166
1167                 break;
1168         default:
1169                 return -EINVAL;
1170         }
1171
1172         return 0;
1173 }
1174
1175 static int coda_enum_framesizes(struct file *file, void *fh,
1176                                 struct v4l2_frmsizeenum *fsize)
1177 {
1178         struct coda_ctx *ctx = fh_to_ctx(fh);
1179         struct coda_q_data *q_data_dst;
1180         const struct coda_codec *codec;
1181
1182         if (ctx->inst_type != CODA_INST_ENCODER)
1183                 return -ENOTTY;
1184
1185         if (fsize->index)
1186                 return -EINVAL;
1187
1188         if (coda_format_normalize_yuv(fsize->pixel_format) ==
1189             V4L2_PIX_FMT_YUV420) {
1190                 q_data_dst = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_CAPTURE);
1191                 codec = coda_find_codec(ctx->dev, fsize->pixel_format,
1192                                         q_data_dst->fourcc);
1193         } else {
1194                 codec = coda_find_codec(ctx->dev, V4L2_PIX_FMT_YUV420,
1195                                         fsize->pixel_format);
1196         }
1197         if (!codec)
1198                 return -EINVAL;
1199
1200         fsize->type = V4L2_FRMSIZE_TYPE_CONTINUOUS;
1201         fsize->stepwise.min_width = MIN_W;
1202         fsize->stepwise.max_width = codec->max_w;
1203         fsize->stepwise.step_width = 1;
1204         fsize->stepwise.min_height = MIN_H;
1205         fsize->stepwise.max_height = codec->max_h;
1206         fsize->stepwise.step_height = 1;
1207
1208         return 0;
1209 }
1210
1211 static int coda_enum_frameintervals(struct file *file, void *fh,
1212                                     struct v4l2_frmivalenum *f)
1213 {
1214         struct coda_ctx *ctx = fh_to_ctx(fh);
1215         int i;
1216
1217         if (f->index)
1218                 return -EINVAL;
1219
1220         /* Disallow YUYV if the vdoa is not available */
1221         if (!ctx->vdoa && f->pixel_format == V4L2_PIX_FMT_YUYV)
1222                 return -EINVAL;
1223
1224         for (i = 0; i < CODA_MAX_FORMATS; i++) {
1225                 if (f->pixel_format == ctx->cvd->src_formats[i] ||
1226                     f->pixel_format == ctx->cvd->dst_formats[i])
1227                         break;
1228         }
1229         if (i == CODA_MAX_FORMATS)
1230                 return -EINVAL;
1231
1232         f->type = V4L2_FRMIVAL_TYPE_CONTINUOUS;
1233         f->stepwise.min.numerator = 1;
1234         f->stepwise.min.denominator = 65535;
1235         f->stepwise.max.numerator = 65536;
1236         f->stepwise.max.denominator = 1;
1237         f->stepwise.step.numerator = 1;
1238         f->stepwise.step.denominator = 1;
1239
1240         return 0;
1241 }
1242
1243 static int coda_g_parm(struct file *file, void *fh, struct v4l2_streamparm *a)
1244 {
1245         struct coda_ctx *ctx = fh_to_ctx(fh);
1246         struct v4l2_fract *tpf;
1247
1248         if (a->type != V4L2_BUF_TYPE_VIDEO_OUTPUT)
1249                 return -EINVAL;
1250
1251         a->parm.output.capability = V4L2_CAP_TIMEPERFRAME;
1252         tpf = &a->parm.output.timeperframe;
1253         tpf->denominator = ctx->params.framerate & CODA_FRATE_RES_MASK;
1254         tpf->numerator = 1 + (ctx->params.framerate >>
1255                               CODA_FRATE_DIV_OFFSET);
1256
1257         return 0;
1258 }
1259
1260 /*
1261  * Approximate timeperframe v4l2_fract with values that can be written
1262  * into the 16-bit CODA_FRATE_DIV and CODA_FRATE_RES fields.
1263  */
1264 static void coda_approximate_timeperframe(struct v4l2_fract *timeperframe)
1265 {
1266         struct v4l2_fract s = *timeperframe;
1267         struct v4l2_fract f0;
1268         struct v4l2_fract f1 = { 1, 0 };
1269         struct v4l2_fract f2 = { 0, 1 };
1270         unsigned int i, div, s_denominator;
1271
1272         /* Lower bound is 1/65535 */
1273         if (s.numerator == 0 || s.denominator / s.numerator > 65535) {
1274                 timeperframe->numerator = 1;
1275                 timeperframe->denominator = 65535;
1276                 return;
1277         }
1278
1279         /* Upper bound is 65536/1 */
1280         if (s.denominator == 0 || s.numerator / s.denominator > 65536) {
1281                 timeperframe->numerator = 65536;
1282                 timeperframe->denominator = 1;
1283                 return;
1284         }
1285
1286         /* Reduce fraction to lowest terms */
1287         div = gcd(s.numerator, s.denominator);
1288         if (div > 1) {
1289                 s.numerator /= div;
1290                 s.denominator /= div;
1291         }
1292
1293         if (s.numerator <= 65536 && s.denominator < 65536) {
1294                 *timeperframe = s;
1295                 return;
1296         }
1297
1298         /* Find successive convergents from continued fraction expansion */
1299         while (f2.numerator <= 65536 && f2.denominator < 65536) {
1300                 f0 = f1;
1301                 f1 = f2;
1302
1303                 /* Stop when f2 exactly equals timeperframe */
1304                 if (s.numerator == 0)
1305                         break;
1306
1307                 i = s.denominator / s.numerator;
1308
1309                 f2.numerator = f0.numerator + i * f1.numerator;
1310                 f2.denominator = f0.denominator + i * f2.denominator;
1311
1312                 s_denominator = s.numerator;
1313                 s.numerator = s.denominator % s.numerator;
1314                 s.denominator = s_denominator;
1315         }
1316
1317         *timeperframe = f1;
1318 }
1319
1320 static uint32_t coda_timeperframe_to_frate(struct v4l2_fract *timeperframe)
1321 {
1322         return ((timeperframe->numerator - 1) << CODA_FRATE_DIV_OFFSET) |
1323                 timeperframe->denominator;
1324 }
1325
1326 static int coda_s_parm(struct file *file, void *fh, struct v4l2_streamparm *a)
1327 {
1328         struct coda_ctx *ctx = fh_to_ctx(fh);
1329         struct v4l2_fract *tpf;
1330
1331         if (a->type != V4L2_BUF_TYPE_VIDEO_OUTPUT)
1332                 return -EINVAL;
1333
1334         a->parm.output.capability = V4L2_CAP_TIMEPERFRAME;
1335         tpf = &a->parm.output.timeperframe;
1336         coda_approximate_timeperframe(tpf);
1337         ctx->params.framerate = coda_timeperframe_to_frate(tpf);
1338         ctx->params.framerate_changed = true;
1339
1340         return 0;
1341 }
1342
1343 static int coda_subscribe_event(struct v4l2_fh *fh,
1344                                 const struct v4l2_event_subscription *sub)
1345 {
1346         struct coda_ctx *ctx = fh_to_ctx(fh);
1347
1348         switch (sub->type) {
1349         case V4L2_EVENT_EOS:
1350                 return v4l2_event_subscribe(fh, sub, 0, NULL);
1351         case V4L2_EVENT_SOURCE_CHANGE:
1352                 if (ctx->inst_type == CODA_INST_DECODER)
1353                         return v4l2_event_subscribe(fh, sub, 0, NULL);
1354                 else
1355                         return -EINVAL;
1356         default:
1357                 return v4l2_ctrl_subscribe_event(fh, sub);
1358         }
1359 }
1360
1361 static const struct v4l2_ioctl_ops coda_ioctl_ops = {
1362         .vidioc_querycap        = coda_querycap,
1363
1364         .vidioc_enum_fmt_vid_cap = coda_enum_fmt,
1365         .vidioc_g_fmt_vid_cap   = coda_g_fmt,
1366         .vidioc_try_fmt_vid_cap = coda_try_fmt_vid_cap,
1367         .vidioc_s_fmt_vid_cap   = coda_s_fmt_vid_cap,
1368
1369         .vidioc_enum_fmt_vid_out = coda_enum_fmt,
1370         .vidioc_g_fmt_vid_out   = coda_g_fmt,
1371         .vidioc_try_fmt_vid_out = coda_try_fmt_vid_out,
1372         .vidioc_s_fmt_vid_out   = coda_s_fmt_vid_out,
1373
1374         .vidioc_reqbufs         = coda_reqbufs,
1375         .vidioc_querybuf        = v4l2_m2m_ioctl_querybuf,
1376
1377         .vidioc_qbuf            = coda_qbuf,
1378         .vidioc_expbuf          = v4l2_m2m_ioctl_expbuf,
1379         .vidioc_dqbuf           = coda_dqbuf,
1380         .vidioc_create_bufs     = v4l2_m2m_ioctl_create_bufs,
1381         .vidioc_prepare_buf     = v4l2_m2m_ioctl_prepare_buf,
1382
1383         .vidioc_streamon        = v4l2_m2m_ioctl_streamon,
1384         .vidioc_streamoff       = v4l2_m2m_ioctl_streamoff,
1385
1386         .vidioc_g_selection     = coda_g_selection,
1387         .vidioc_s_selection     = coda_s_selection,
1388
1389         .vidioc_try_encoder_cmd = coda_try_encoder_cmd,
1390         .vidioc_encoder_cmd     = coda_encoder_cmd,
1391         .vidioc_try_decoder_cmd = coda_try_decoder_cmd,
1392         .vidioc_decoder_cmd     = coda_decoder_cmd,
1393
1394         .vidioc_g_parm          = coda_g_parm,
1395         .vidioc_s_parm          = coda_s_parm,
1396
1397         .vidioc_enum_framesizes = coda_enum_framesizes,
1398         .vidioc_enum_frameintervals = coda_enum_frameintervals,
1399
1400         .vidioc_subscribe_event = coda_subscribe_event,
1401         .vidioc_unsubscribe_event = v4l2_event_unsubscribe,
1402 };
1403
1404 /*
1405  * Mem-to-mem operations.
1406  */
1407
1408 static void coda_device_run(void *m2m_priv)
1409 {
1410         struct coda_ctx *ctx = m2m_priv;
1411         struct coda_dev *dev = ctx->dev;
1412
1413         queue_work(dev->workqueue, &ctx->pic_run_work);
1414 }
1415
1416 static void coda_pic_run_work(struct work_struct *work)
1417 {
1418         struct coda_ctx *ctx = container_of(work, struct coda_ctx, pic_run_work);
1419         struct coda_dev *dev = ctx->dev;
1420         int ret;
1421
1422         mutex_lock(&ctx->buffer_mutex);
1423         mutex_lock(&dev->coda_mutex);
1424
1425         ret = ctx->ops->prepare_run(ctx);
1426         if (ret < 0 && ctx->inst_type == CODA_INST_DECODER) {
1427                 mutex_unlock(&dev->coda_mutex);
1428                 mutex_unlock(&ctx->buffer_mutex);
1429                 /* job_finish scheduled by prepare_decode */
1430                 return;
1431         }
1432
1433         if (!wait_for_completion_timeout(&ctx->completion,
1434                                          msecs_to_jiffies(1000))) {
1435                 dev_err(dev->dev, "CODA PIC_RUN timeout\n");
1436
1437                 ctx->hold = true;
1438
1439                 coda_hw_reset(ctx);
1440
1441                 if (ctx->ops->run_timeout)
1442                         ctx->ops->run_timeout(ctx);
1443         } else {
1444                 ctx->ops->finish_run(ctx);
1445         }
1446
1447         if ((ctx->aborting || (!ctx->streamon_cap && !ctx->streamon_out)) &&
1448             ctx->ops->seq_end_work)
1449                 queue_work(dev->workqueue, &ctx->seq_end_work);
1450
1451         mutex_unlock(&dev->coda_mutex);
1452         mutex_unlock(&ctx->buffer_mutex);
1453
1454         v4l2_m2m_job_finish(ctx->dev->m2m_dev, ctx->fh.m2m_ctx);
1455 }
1456
1457 static int coda_job_ready(void *m2m_priv)
1458 {
1459         struct coda_ctx *ctx = m2m_priv;
1460         int src_bufs = v4l2_m2m_num_src_bufs_ready(ctx->fh.m2m_ctx);
1461
1462         /*
1463          * For both 'P' and 'key' frame cases 1 picture
1464          * and 1 frame are needed. In the decoder case,
1465          * the compressed frame can be in the bitstream.
1466          */
1467         if (!src_bufs && ctx->inst_type != CODA_INST_DECODER) {
1468                 coda_dbg(1, ctx, "not ready: not enough vid-out buffers.\n");
1469                 return 0;
1470         }
1471
1472         if (!v4l2_m2m_num_dst_bufs_ready(ctx->fh.m2m_ctx)) {
1473                 coda_dbg(1, ctx, "not ready: not enough vid-cap buffers.\n");
1474                 return 0;
1475         }
1476
1477         if (ctx->inst_type == CODA_INST_DECODER && ctx->use_bit) {
1478                 bool stream_end = ctx->bit_stream_param &
1479                                   CODA_BIT_STREAM_END_FLAG;
1480                 int num_metas = ctx->num_metas;
1481                 struct coda_buffer_meta *meta;
1482                 unsigned int count;
1483
1484                 count = hweight32(ctx->frm_dis_flg);
1485                 if (ctx->use_vdoa && count >= (ctx->num_internal_frames - 1)) {
1486                         coda_dbg(1, ctx,
1487                                  "not ready: all internal buffers in use: %d/%d (0x%x)",
1488                                  count, ctx->num_internal_frames,
1489                                  ctx->frm_dis_flg);
1490                         return 0;
1491                 }
1492
1493                 if (ctx->hold && !src_bufs) {
1494                         coda_dbg(1, ctx,
1495                                  "not ready: on hold for more buffers.\n");
1496                         return 0;
1497                 }
1498
1499                 if (!stream_end && (num_metas + src_bufs) < 2) {
1500                         coda_dbg(1, ctx,
1501                                  "not ready: need 2 buffers available (queue:%d + bitstream:%d)\n",
1502                                  num_metas, src_bufs);
1503                         return 0;
1504                 }
1505
1506                 meta = list_first_entry(&ctx->buffer_meta_list,
1507                                         struct coda_buffer_meta, list);
1508                 if (!coda_bitstream_can_fetch_past(ctx, meta->end) &&
1509                     !stream_end) {
1510                         coda_dbg(1, ctx,
1511                                  "not ready: not enough bitstream data to read past %u (%u)\n",
1512                                  meta->end, ctx->bitstream_fifo.kfifo.in);
1513                         return 0;
1514                 }
1515         }
1516
1517         if (ctx->aborting) {
1518                 coda_dbg(1, ctx, "not ready: aborting\n");
1519                 return 0;
1520         }
1521
1522         coda_dbg(2, ctx, "job ready\n");
1523
1524         return 1;
1525 }
1526
1527 static void coda_job_abort(void *priv)
1528 {
1529         struct coda_ctx *ctx = priv;
1530
1531         ctx->aborting = 1;
1532
1533         coda_dbg(1, ctx, "job abort\n");
1534 }
1535
1536 static const struct v4l2_m2m_ops coda_m2m_ops = {
1537         .device_run     = coda_device_run,
1538         .job_ready      = coda_job_ready,
1539         .job_abort      = coda_job_abort,
1540 };
1541
1542 static void set_default_params(struct coda_ctx *ctx)
1543 {
1544         unsigned int max_w, max_h, usize, csize;
1545
1546         ctx->codec = coda_find_codec(ctx->dev, ctx->cvd->src_formats[0],
1547                                      ctx->cvd->dst_formats[0]);
1548         max_w = min(ctx->codec->max_w, 1920U);
1549         max_h = min(ctx->codec->max_h, 1088U);
1550         usize = max_w * max_h * 3 / 2;
1551         csize = coda_estimate_sizeimage(ctx, usize, max_w, max_h);
1552
1553         ctx->params.codec_mode = ctx->codec->mode;
1554         if (ctx->cvd->src_formats[0] == V4L2_PIX_FMT_JPEG)
1555                 ctx->colorspace = V4L2_COLORSPACE_JPEG;
1556         else
1557                 ctx->colorspace = V4L2_COLORSPACE_REC709;
1558         ctx->xfer_func = V4L2_XFER_FUNC_DEFAULT;
1559         ctx->ycbcr_enc = V4L2_YCBCR_ENC_DEFAULT;
1560         ctx->quantization = V4L2_QUANTIZATION_DEFAULT;
1561         ctx->params.framerate = 30;
1562
1563         /* Default formats for output and input queues */
1564         ctx->q_data[V4L2_M2M_SRC].fourcc = ctx->cvd->src_formats[0];
1565         ctx->q_data[V4L2_M2M_DST].fourcc = ctx->cvd->dst_formats[0];
1566         ctx->q_data[V4L2_M2M_SRC].width = max_w;
1567         ctx->q_data[V4L2_M2M_SRC].height = max_h;
1568         ctx->q_data[V4L2_M2M_DST].width = max_w;
1569         ctx->q_data[V4L2_M2M_DST].height = max_h;
1570         if (ctx->codec->src_fourcc == V4L2_PIX_FMT_YUV420) {
1571                 ctx->q_data[V4L2_M2M_SRC].bytesperline = max_w;
1572                 ctx->q_data[V4L2_M2M_SRC].sizeimage = usize;
1573                 ctx->q_data[V4L2_M2M_DST].bytesperline = 0;
1574                 ctx->q_data[V4L2_M2M_DST].sizeimage = csize;
1575         } else {
1576                 ctx->q_data[V4L2_M2M_SRC].bytesperline = 0;
1577                 ctx->q_data[V4L2_M2M_SRC].sizeimage = csize;
1578                 ctx->q_data[V4L2_M2M_DST].bytesperline = max_w;
1579                 ctx->q_data[V4L2_M2M_DST].sizeimage = usize;
1580         }
1581         ctx->q_data[V4L2_M2M_SRC].rect.width = max_w;
1582         ctx->q_data[V4L2_M2M_SRC].rect.height = max_h;
1583         ctx->q_data[V4L2_M2M_DST].rect.width = max_w;
1584         ctx->q_data[V4L2_M2M_DST].rect.height = max_h;
1585
1586         /*
1587          * Since the RBC2AXI logic only supports a single chroma plane,
1588          * macroblock tiling only works for to NV12 pixel format.
1589          */
1590         ctx->tiled_map_type = GDI_LINEAR_FRAME_MAP;
1591 }
1592
1593 /*
1594  * Queue operations
1595  */
1596 static int coda_queue_setup(struct vb2_queue *vq,
1597                                 unsigned int *nbuffers, unsigned int *nplanes,
1598                                 unsigned int sizes[], struct device *alloc_devs[])
1599 {
1600         struct coda_ctx *ctx = vb2_get_drv_priv(vq);
1601         struct coda_q_data *q_data;
1602         unsigned int size;
1603
1604         q_data = get_q_data(ctx, vq->type);
1605         size = q_data->sizeimage;
1606
1607         if (*nplanes)
1608                 return sizes[0] < size ? -EINVAL : 0;
1609
1610         *nplanes = 1;
1611         sizes[0] = size;
1612
1613         coda_dbg(1, ctx, "get %d buffer(s) of size %d each.\n", *nbuffers,
1614                  size);
1615
1616         return 0;
1617 }
1618
1619 static int coda_buf_prepare(struct vb2_buffer *vb)
1620 {
1621         struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
1622         struct coda_ctx *ctx = vb2_get_drv_priv(vb->vb2_queue);
1623         struct coda_q_data *q_data;
1624
1625         q_data = get_q_data(ctx, vb->vb2_queue->type);
1626         if (V4L2_TYPE_IS_OUTPUT(vb->vb2_queue->type)) {
1627                 if (vbuf->field == V4L2_FIELD_ANY)
1628                         vbuf->field = V4L2_FIELD_NONE;
1629                 if (vbuf->field != V4L2_FIELD_NONE) {
1630                         v4l2_warn(&ctx->dev->v4l2_dev,
1631                                   "%s field isn't supported\n", __func__);
1632                         return -EINVAL;
1633                 }
1634         }
1635
1636         if (vb2_plane_size(vb, 0) < q_data->sizeimage) {
1637                 v4l2_warn(&ctx->dev->v4l2_dev,
1638                           "%s data will not fit into plane (%lu < %lu)\n",
1639                           __func__, vb2_plane_size(vb, 0),
1640                           (long)q_data->sizeimage);
1641                 return -EINVAL;
1642         }
1643
1644         return 0;
1645 }
1646
1647 static void coda_update_menu_ctrl(struct v4l2_ctrl *ctrl, int value)
1648 {
1649         if (!ctrl)
1650                 return;
1651
1652         v4l2_ctrl_lock(ctrl);
1653
1654         /*
1655          * Extend the control range if the parsed stream contains a known but
1656          * unsupported value or level.
1657          */
1658         if (value > ctrl->maximum) {
1659                 __v4l2_ctrl_modify_range(ctrl, ctrl->minimum, value,
1660                         ctrl->menu_skip_mask & ~(1 << value),
1661                         ctrl->default_value);
1662         } else if (value < ctrl->minimum) {
1663                 __v4l2_ctrl_modify_range(ctrl, value, ctrl->maximum,
1664                         ctrl->menu_skip_mask & ~(1 << value),
1665                         ctrl->default_value);
1666         }
1667
1668         __v4l2_ctrl_s_ctrl(ctrl, value);
1669
1670         v4l2_ctrl_unlock(ctrl);
1671 }
1672
1673 void coda_update_profile_level_ctrls(struct coda_ctx *ctx, u8 profile_idc,
1674                                      u8 level_idc)
1675 {
1676         const char * const *profile_names;
1677         const char * const *level_names;
1678         struct v4l2_ctrl *profile_ctrl;
1679         struct v4l2_ctrl *level_ctrl;
1680         const char *codec_name;
1681         u32 profile_cid;
1682         u32 level_cid;
1683         int profile;
1684         int level;
1685
1686         switch (ctx->codec->src_fourcc) {
1687         case V4L2_PIX_FMT_H264:
1688                 codec_name = "H264";
1689                 profile_cid = V4L2_CID_MPEG_VIDEO_H264_PROFILE;
1690                 level_cid = V4L2_CID_MPEG_VIDEO_H264_LEVEL;
1691                 profile_ctrl = ctx->h264_profile_ctrl;
1692                 level_ctrl = ctx->h264_level_ctrl;
1693                 profile = coda_h264_profile(profile_idc);
1694                 level = coda_h264_level(level_idc);
1695                 break;
1696         case V4L2_PIX_FMT_MPEG2:
1697                 codec_name = "MPEG-2";
1698                 profile_cid = V4L2_CID_MPEG_VIDEO_MPEG2_PROFILE;
1699                 level_cid = V4L2_CID_MPEG_VIDEO_MPEG2_LEVEL;
1700                 profile_ctrl = ctx->mpeg2_profile_ctrl;
1701                 level_ctrl = ctx->mpeg2_level_ctrl;
1702                 profile = coda_mpeg2_profile(profile_idc);
1703                 level = coda_mpeg2_level(level_idc);
1704                 break;
1705         case V4L2_PIX_FMT_MPEG4:
1706                 codec_name = "MPEG-4";
1707                 profile_cid = V4L2_CID_MPEG_VIDEO_MPEG4_PROFILE;
1708                 level_cid = V4L2_CID_MPEG_VIDEO_MPEG4_LEVEL;
1709                 profile_ctrl = ctx->mpeg4_profile_ctrl;
1710                 level_ctrl = ctx->mpeg4_level_ctrl;
1711                 profile = coda_mpeg4_profile(profile_idc);
1712                 level = coda_mpeg4_level(level_idc);
1713                 break;
1714         default:
1715                 return;
1716         }
1717
1718         profile_names = v4l2_ctrl_get_menu(profile_cid);
1719         level_names = v4l2_ctrl_get_menu(level_cid);
1720
1721         if (profile < 0) {
1722                 v4l2_warn(&ctx->dev->v4l2_dev, "Invalid %s profile: %u\n",
1723                           codec_name, profile_idc);
1724         } else {
1725                 coda_dbg(1, ctx, "Parsed %s profile: %s\n", codec_name,
1726                          profile_names[profile]);
1727                 coda_update_menu_ctrl(profile_ctrl, profile);
1728         }
1729
1730         if (level < 0) {
1731                 v4l2_warn(&ctx->dev->v4l2_dev, "Invalid %s level: %u\n",
1732                           codec_name, level_idc);
1733         } else {
1734                 coda_dbg(1, ctx, "Parsed %s level: %s\n", codec_name,
1735                          level_names[level]);
1736                 coda_update_menu_ctrl(level_ctrl, level);
1737         }
1738 }
1739
1740 static void coda_queue_source_change_event(struct coda_ctx *ctx)
1741 {
1742         static const struct v4l2_event source_change_event = {
1743                 .type = V4L2_EVENT_SOURCE_CHANGE,
1744                 .u.src_change.changes = V4L2_EVENT_SRC_CH_RESOLUTION,
1745         };
1746
1747         v4l2_event_queue_fh(&ctx->fh, &source_change_event);
1748 }
1749
1750 static void coda_buf_queue(struct vb2_buffer *vb)
1751 {
1752         struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
1753         struct coda_ctx *ctx = vb2_get_drv_priv(vb->vb2_queue);
1754         struct vb2_queue *vq = vb->vb2_queue;
1755         struct coda_q_data *q_data;
1756
1757         q_data = get_q_data(ctx, vb->vb2_queue->type);
1758
1759         /*
1760          * In the decoder case, immediately try to copy the buffer into the
1761          * bitstream ringbuffer and mark it as ready to be dequeued.
1762          */
1763         if (ctx->bitstream.size && vq->type == V4L2_BUF_TYPE_VIDEO_OUTPUT) {
1764                 /*
1765                  * For backwards compatibility, queuing an empty buffer marks
1766                  * the stream end
1767                  */
1768                 if (vb2_get_plane_payload(vb, 0) == 0)
1769                         coda_bit_stream_end_flag(ctx);
1770
1771                 if (q_data->fourcc == V4L2_PIX_FMT_H264) {
1772                         /*
1773                          * Unless already done, try to obtain profile_idc and
1774                          * level_idc from the SPS header. This allows to decide
1775                          * whether to enable reordering during sequence
1776                          * initialization.
1777                          */
1778                         if (!ctx->params.h264_profile_idc) {
1779                                 coda_sps_parse_profile(ctx, vb);
1780                                 coda_update_profile_level_ctrls(ctx,
1781                                                 ctx->params.h264_profile_idc,
1782                                                 ctx->params.h264_level_idc);
1783                         }
1784                 }
1785
1786                 mutex_lock(&ctx->bitstream_mutex);
1787                 v4l2_m2m_buf_queue(ctx->fh.m2m_ctx, vbuf);
1788                 if (vb2_is_streaming(vb->vb2_queue))
1789                         /* This set buf->sequence = ctx->qsequence++ */
1790                         coda_fill_bitstream(ctx, NULL);
1791                 mutex_unlock(&ctx->bitstream_mutex);
1792
1793                 if (!ctx->initialized) {
1794                         /*
1795                          * Run sequence initialization in case the queued
1796                          * buffer contained headers.
1797                          */
1798                         if (vb2_is_streaming(vb->vb2_queue) &&
1799                             ctx->ops->seq_init_work) {
1800                                 queue_work(ctx->dev->workqueue,
1801                                            &ctx->seq_init_work);
1802                                 flush_work(&ctx->seq_init_work);
1803                         }
1804
1805                         if (ctx->initialized)
1806                                 coda_queue_source_change_event(ctx);
1807                 }
1808         } else {
1809                 if ((ctx->inst_type == CODA_INST_ENCODER || !ctx->use_bit) &&
1810                     vq->type == V4L2_BUF_TYPE_VIDEO_OUTPUT)
1811                         vbuf->sequence = ctx->qsequence++;
1812                 v4l2_m2m_buf_queue(ctx->fh.m2m_ctx, vbuf);
1813         }
1814 }
1815
1816 int coda_alloc_aux_buf(struct coda_dev *dev, struct coda_aux_buf *buf,
1817                        size_t size, const char *name, struct dentry *parent)
1818 {
1819         buf->vaddr = dma_alloc_coherent(dev->dev, size, &buf->paddr,
1820                                         GFP_KERNEL);
1821         if (!buf->vaddr) {
1822                 v4l2_err(&dev->v4l2_dev,
1823                          "Failed to allocate %s buffer of size %zu\n",
1824                          name, size);
1825                 return -ENOMEM;
1826         }
1827
1828         buf->size = size;
1829
1830         if (name && parent) {
1831                 buf->blob.data = buf->vaddr;
1832                 buf->blob.size = size;
1833                 buf->dentry = debugfs_create_blob(name, 0644, parent,
1834                                                   &buf->blob);
1835                 if (!buf->dentry)
1836                         dev_warn(dev->dev,
1837                                  "failed to create debugfs entry %s\n", name);
1838         }
1839
1840         return 0;
1841 }
1842
1843 void coda_free_aux_buf(struct coda_dev *dev,
1844                        struct coda_aux_buf *buf)
1845 {
1846         if (buf->vaddr) {
1847                 dma_free_coherent(dev->dev, buf->size, buf->vaddr, buf->paddr);
1848                 buf->vaddr = NULL;
1849                 buf->size = 0;
1850                 debugfs_remove(buf->dentry);
1851                 buf->dentry = NULL;
1852         }
1853 }
1854
1855 static int coda_start_streaming(struct vb2_queue *q, unsigned int count)
1856 {
1857         struct coda_ctx *ctx = vb2_get_drv_priv(q);
1858         struct v4l2_device *v4l2_dev = &ctx->dev->v4l2_dev;
1859         struct coda_q_data *q_data_src, *q_data_dst;
1860         struct v4l2_m2m_buffer *m2m_buf, *tmp;
1861         struct vb2_v4l2_buffer *buf;
1862         struct list_head list;
1863         int ret = 0;
1864
1865         if (count < 1)
1866                 return -EINVAL;
1867
1868         coda_dbg(1, ctx, "start streaming %s\n", v4l2_type_names[q->type]);
1869
1870         INIT_LIST_HEAD(&list);
1871
1872         q_data_src = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_OUTPUT);
1873         if (q->type == V4L2_BUF_TYPE_VIDEO_OUTPUT) {
1874                 if (ctx->inst_type == CODA_INST_DECODER && ctx->use_bit) {
1875                         /* copy the buffers that were queued before streamon */
1876                         mutex_lock(&ctx->bitstream_mutex);
1877                         coda_fill_bitstream(ctx, &list);
1878                         mutex_unlock(&ctx->bitstream_mutex);
1879
1880                         if (ctx->dev->devtype->product != CODA_960 &&
1881                             coda_get_bitstream_payload(ctx) < 512) {
1882                                 v4l2_err(v4l2_dev, "start payload < 512\n");
1883                                 ret = -EINVAL;
1884                                 goto err;
1885                         }
1886
1887                         if (!ctx->initialized) {
1888                                 /* Run sequence initialization */
1889                                 if (ctx->ops->seq_init_work) {
1890                                         queue_work(ctx->dev->workqueue,
1891                                                    &ctx->seq_init_work);
1892                                         flush_work(&ctx->seq_init_work);
1893                                 }
1894                         }
1895                 }
1896
1897                 ctx->streamon_out = 1;
1898         } else {
1899                 ctx->streamon_cap = 1;
1900         }
1901
1902         /* Don't start the coda unless both queues are on */
1903         if (!(ctx->streamon_out && ctx->streamon_cap))
1904                 goto out;
1905
1906         q_data_dst = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_CAPTURE);
1907         if ((q_data_src->rect.width != q_data_dst->width &&
1908              round_up(q_data_src->rect.width, 16) != q_data_dst->width) ||
1909             (q_data_src->rect.height != q_data_dst->height &&
1910              round_up(q_data_src->rect.height, 16) != q_data_dst->height)) {
1911                 v4l2_err(v4l2_dev, "can't convert %dx%d to %dx%d\n",
1912                          q_data_src->rect.width, q_data_src->rect.height,
1913                          q_data_dst->width, q_data_dst->height);
1914                 ret = -EINVAL;
1915                 goto err;
1916         }
1917
1918         /* Allow BIT decoder device_run with no new buffers queued */
1919         if (ctx->inst_type == CODA_INST_DECODER && ctx->use_bit)
1920                 v4l2_m2m_set_src_buffered(ctx->fh.m2m_ctx, true);
1921
1922         ctx->gopcounter = ctx->params.gop_size - 1;
1923
1924         if (q_data_dst->fourcc == V4L2_PIX_FMT_JPEG)
1925                 ctx->params.gop_size = 1;
1926         ctx->gopcounter = ctx->params.gop_size - 1;
1927
1928         ret = ctx->ops->start_streaming(ctx);
1929         if (ctx->inst_type == CODA_INST_DECODER) {
1930                 if (ret == -EAGAIN)
1931                         goto out;
1932         }
1933         if (ret < 0)
1934                 goto err;
1935
1936 out:
1937         if (q->type == V4L2_BUF_TYPE_VIDEO_OUTPUT) {
1938                 list_for_each_entry_safe(m2m_buf, tmp, &list, list) {
1939                         list_del(&m2m_buf->list);
1940                         v4l2_m2m_buf_done(&m2m_buf->vb, VB2_BUF_STATE_DONE);
1941                 }
1942         }
1943         return 0;
1944
1945 err:
1946         if (q->type == V4L2_BUF_TYPE_VIDEO_OUTPUT) {
1947                 list_for_each_entry_safe(m2m_buf, tmp, &list, list) {
1948                         list_del(&m2m_buf->list);
1949                         v4l2_m2m_buf_done(&m2m_buf->vb, VB2_BUF_STATE_QUEUED);
1950                 }
1951                 while ((buf = v4l2_m2m_src_buf_remove(ctx->fh.m2m_ctx)))
1952                         v4l2_m2m_buf_done(buf, VB2_BUF_STATE_QUEUED);
1953         } else {
1954                 while ((buf = v4l2_m2m_dst_buf_remove(ctx->fh.m2m_ctx)))
1955                         v4l2_m2m_buf_done(buf, VB2_BUF_STATE_QUEUED);
1956         }
1957         return ret;
1958 }
1959
1960 static void coda_stop_streaming(struct vb2_queue *q)
1961 {
1962         struct coda_ctx *ctx = vb2_get_drv_priv(q);
1963         struct coda_dev *dev = ctx->dev;
1964         struct vb2_v4l2_buffer *buf;
1965         bool stop;
1966
1967         stop = ctx->streamon_out && ctx->streamon_cap;
1968
1969         coda_dbg(1, ctx, "stop streaming %s\n", v4l2_type_names[q->type]);
1970
1971         if (q->type == V4L2_BUF_TYPE_VIDEO_OUTPUT) {
1972                 ctx->streamon_out = 0;
1973
1974                 coda_bit_stream_end_flag(ctx);
1975
1976                 ctx->qsequence = 0;
1977
1978                 while ((buf = v4l2_m2m_src_buf_remove(ctx->fh.m2m_ctx)))
1979                         v4l2_m2m_buf_done(buf, VB2_BUF_STATE_ERROR);
1980         } else {
1981                 ctx->streamon_cap = 0;
1982
1983                 ctx->osequence = 0;
1984                 ctx->sequence_offset = 0;
1985
1986                 while ((buf = v4l2_m2m_dst_buf_remove(ctx->fh.m2m_ctx)))
1987                         v4l2_m2m_buf_done(buf, VB2_BUF_STATE_ERROR);
1988         }
1989
1990         if (stop) {
1991                 struct coda_buffer_meta *meta;
1992
1993                 if (ctx->ops->seq_end_work) {
1994                         queue_work(dev->workqueue, &ctx->seq_end_work);
1995                         flush_work(&ctx->seq_end_work);
1996                 }
1997                 spin_lock(&ctx->buffer_meta_lock);
1998                 while (!list_empty(&ctx->buffer_meta_list)) {
1999                         meta = list_first_entry(&ctx->buffer_meta_list,
2000                                                 struct coda_buffer_meta, list);
2001                         list_del(&meta->list);
2002                         kfree(meta);
2003                 }
2004                 ctx->num_metas = 0;
2005                 spin_unlock(&ctx->buffer_meta_lock);
2006                 kfifo_init(&ctx->bitstream_fifo,
2007                         ctx->bitstream.vaddr, ctx->bitstream.size);
2008                 ctx->runcounter = 0;
2009                 ctx->aborting = 0;
2010                 ctx->hold = false;
2011         }
2012
2013         if (!ctx->streamon_out && !ctx->streamon_cap)
2014                 ctx->bit_stream_param &= ~CODA_BIT_STREAM_END_FLAG;
2015 }
2016
2017 static const struct vb2_ops coda_qops = {
2018         .queue_setup            = coda_queue_setup,
2019         .buf_prepare            = coda_buf_prepare,
2020         .buf_queue              = coda_buf_queue,
2021         .start_streaming        = coda_start_streaming,
2022         .stop_streaming         = coda_stop_streaming,
2023         .wait_prepare           = vb2_ops_wait_prepare,
2024         .wait_finish            = vb2_ops_wait_finish,
2025 };
2026
2027 static int coda_s_ctrl(struct v4l2_ctrl *ctrl)
2028 {
2029         const char * const *val_names = v4l2_ctrl_get_menu(ctrl->id);
2030         struct coda_ctx *ctx =
2031                         container_of(ctrl->handler, struct coda_ctx, ctrls);
2032
2033         if (val_names)
2034                 coda_dbg(2, ctx, "s_ctrl: id = 0x%x, name = \"%s\", val = %d (\"%s\")\n",
2035                          ctrl->id, ctrl->name, ctrl->val, val_names[ctrl->val]);
2036         else
2037                 coda_dbg(2, ctx, "s_ctrl: id = 0x%x, name = \"%s\", val = %d\n",
2038                          ctrl->id, ctrl->name, ctrl->val);
2039
2040         switch (ctrl->id) {
2041         case V4L2_CID_HFLIP:
2042                 if (ctrl->val)
2043                         ctx->params.rot_mode |= CODA_MIR_HOR;
2044                 else
2045                         ctx->params.rot_mode &= ~CODA_MIR_HOR;
2046                 break;
2047         case V4L2_CID_VFLIP:
2048                 if (ctrl->val)
2049                         ctx->params.rot_mode |= CODA_MIR_VER;
2050                 else
2051                         ctx->params.rot_mode &= ~CODA_MIR_VER;
2052                 break;
2053         case V4L2_CID_MPEG_VIDEO_BITRATE:
2054                 ctx->params.bitrate = ctrl->val / 1000;
2055                 ctx->params.bitrate_changed = true;
2056                 break;
2057         case V4L2_CID_MPEG_VIDEO_GOP_SIZE:
2058                 ctx->params.gop_size = ctrl->val;
2059                 break;
2060         case V4L2_CID_MPEG_VIDEO_H264_I_FRAME_QP:
2061                 ctx->params.h264_intra_qp = ctrl->val;
2062                 ctx->params.h264_intra_qp_changed = true;
2063                 break;
2064         case V4L2_CID_MPEG_VIDEO_H264_P_FRAME_QP:
2065                 ctx->params.h264_inter_qp = ctrl->val;
2066                 break;
2067         case V4L2_CID_MPEG_VIDEO_H264_MIN_QP:
2068                 ctx->params.h264_min_qp = ctrl->val;
2069                 break;
2070         case V4L2_CID_MPEG_VIDEO_H264_MAX_QP:
2071                 ctx->params.h264_max_qp = ctrl->val;
2072                 break;
2073         case V4L2_CID_MPEG_VIDEO_H264_LOOP_FILTER_ALPHA:
2074                 ctx->params.h264_slice_alpha_c0_offset_div2 = ctrl->val;
2075                 break;
2076         case V4L2_CID_MPEG_VIDEO_H264_LOOP_FILTER_BETA:
2077                 ctx->params.h264_slice_beta_offset_div2 = ctrl->val;
2078                 break;
2079         case V4L2_CID_MPEG_VIDEO_H264_LOOP_FILTER_MODE:
2080                 ctx->params.h264_disable_deblocking_filter_idc = ctrl->val;
2081                 break;
2082         case V4L2_CID_MPEG_VIDEO_H264_CONSTRAINED_INTRA_PREDICTION:
2083                 ctx->params.h264_constrained_intra_pred_flag = ctrl->val;
2084                 break;
2085         case V4L2_CID_MPEG_VIDEO_H264_CHROMA_QP_INDEX_OFFSET:
2086                 ctx->params.h264_chroma_qp_index_offset = ctrl->val;
2087                 break;
2088         case V4L2_CID_MPEG_VIDEO_H264_PROFILE:
2089                 /* TODO: switch between baseline and constrained baseline */
2090                 if (ctx->inst_type == CODA_INST_ENCODER)
2091                         ctx->params.h264_profile_idc = 66;
2092                 break;
2093         case V4L2_CID_MPEG_VIDEO_H264_LEVEL:
2094                 /* nothing to do, this is set by the encoder */
2095                 break;
2096         case V4L2_CID_MPEG_VIDEO_MPEG4_I_FRAME_QP:
2097                 ctx->params.mpeg4_intra_qp = ctrl->val;
2098                 break;
2099         case V4L2_CID_MPEG_VIDEO_MPEG4_P_FRAME_QP:
2100                 ctx->params.mpeg4_inter_qp = ctrl->val;
2101                 break;
2102         case V4L2_CID_MPEG_VIDEO_MPEG2_PROFILE:
2103         case V4L2_CID_MPEG_VIDEO_MPEG2_LEVEL:
2104         case V4L2_CID_MPEG_VIDEO_MPEG4_PROFILE:
2105         case V4L2_CID_MPEG_VIDEO_MPEG4_LEVEL:
2106                 /* nothing to do, these are fixed */
2107                 break;
2108         case V4L2_CID_MPEG_VIDEO_MULTI_SLICE_MODE:
2109                 ctx->params.slice_mode = ctrl->val;
2110                 ctx->params.slice_mode_changed = true;
2111                 break;
2112         case V4L2_CID_MPEG_VIDEO_MULTI_SLICE_MAX_MB:
2113                 ctx->params.slice_max_mb = ctrl->val;
2114                 ctx->params.slice_mode_changed = true;
2115                 break;
2116         case V4L2_CID_MPEG_VIDEO_MULTI_SLICE_MAX_BYTES:
2117                 ctx->params.slice_max_bits = ctrl->val * 8;
2118                 ctx->params.slice_mode_changed = true;
2119                 break;
2120         case V4L2_CID_MPEG_VIDEO_HEADER_MODE:
2121                 break;
2122         case V4L2_CID_MPEG_VIDEO_CYCLIC_INTRA_REFRESH_MB:
2123                 ctx->params.intra_refresh = ctrl->val;
2124                 ctx->params.intra_refresh_changed = true;
2125                 break;
2126         case V4L2_CID_MPEG_VIDEO_FORCE_KEY_FRAME:
2127                 ctx->params.force_ipicture = true;
2128                 break;
2129         case V4L2_CID_JPEG_COMPRESSION_QUALITY:
2130                 coda_set_jpeg_compression_quality(ctx, ctrl->val);
2131                 break;
2132         case V4L2_CID_JPEG_RESTART_INTERVAL:
2133                 ctx->params.jpeg_restart_interval = ctrl->val;
2134                 break;
2135         case V4L2_CID_MPEG_VIDEO_VBV_DELAY:
2136                 ctx->params.vbv_delay = ctrl->val;
2137                 break;
2138         case V4L2_CID_MPEG_VIDEO_VBV_SIZE:
2139                 ctx->params.vbv_size = min(ctrl->val * 8192, 0x7fffffff);
2140                 break;
2141         default:
2142                 coda_dbg(1, ctx, "Invalid control, id=%d, val=%d\n",
2143                          ctrl->id, ctrl->val);
2144                 return -EINVAL;
2145         }
2146
2147         return 0;
2148 }
2149
2150 static const struct v4l2_ctrl_ops coda_ctrl_ops = {
2151         .s_ctrl = coda_s_ctrl,
2152 };
2153
2154 static void coda_encode_ctrls(struct coda_ctx *ctx)
2155 {
2156         int max_gop_size = (ctx->dev->devtype->product == CODA_DX6) ? 60 : 99;
2157
2158         v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
2159                 V4L2_CID_MPEG_VIDEO_BITRATE, 0, 32767000, 1000, 0);
2160         v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
2161                 V4L2_CID_MPEG_VIDEO_GOP_SIZE, 0, max_gop_size, 1, 16);
2162         v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
2163                 V4L2_CID_MPEG_VIDEO_H264_I_FRAME_QP, 0, 51, 1, 25);
2164         v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
2165                 V4L2_CID_MPEG_VIDEO_H264_P_FRAME_QP, 0, 51, 1, 25);
2166         if (ctx->dev->devtype->product != CODA_960) {
2167                 v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
2168                         V4L2_CID_MPEG_VIDEO_H264_MIN_QP, 0, 51, 1, 12);
2169         }
2170         v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
2171                 V4L2_CID_MPEG_VIDEO_H264_MAX_QP, 0, 51, 1, 51);
2172         v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
2173                 V4L2_CID_MPEG_VIDEO_H264_LOOP_FILTER_ALPHA, -6, 6, 1, 0);
2174         v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
2175                 V4L2_CID_MPEG_VIDEO_H264_LOOP_FILTER_BETA, -6, 6, 1, 0);
2176         v4l2_ctrl_new_std_menu(&ctx->ctrls, &coda_ctrl_ops,
2177                 V4L2_CID_MPEG_VIDEO_H264_LOOP_FILTER_MODE,
2178                 V4L2_MPEG_VIDEO_H264_LOOP_FILTER_MODE_DISABLED_AT_SLICE_BOUNDARY,
2179                 0x0, V4L2_MPEG_VIDEO_H264_LOOP_FILTER_MODE_ENABLED);
2180         v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
2181                 V4L2_CID_MPEG_VIDEO_H264_CONSTRAINED_INTRA_PREDICTION, 0, 1, 1,
2182                 0);
2183         v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
2184                 V4L2_CID_MPEG_VIDEO_H264_CHROMA_QP_INDEX_OFFSET, -12, 12, 1, 0);
2185         v4l2_ctrl_new_std_menu(&ctx->ctrls, &coda_ctrl_ops,
2186                 V4L2_CID_MPEG_VIDEO_H264_PROFILE,
2187                 V4L2_MPEG_VIDEO_H264_PROFILE_BASELINE, 0x0,
2188                 V4L2_MPEG_VIDEO_H264_PROFILE_BASELINE);
2189         if (ctx->dev->devtype->product == CODA_HX4 ||
2190             ctx->dev->devtype->product == CODA_7541) {
2191                 v4l2_ctrl_new_std_menu(&ctx->ctrls, &coda_ctrl_ops,
2192                         V4L2_CID_MPEG_VIDEO_H264_LEVEL,
2193                         V4L2_MPEG_VIDEO_H264_LEVEL_3_1,
2194                         ~((1 << V4L2_MPEG_VIDEO_H264_LEVEL_2_0) |
2195                           (1 << V4L2_MPEG_VIDEO_H264_LEVEL_3_0) |
2196                           (1 << V4L2_MPEG_VIDEO_H264_LEVEL_3_1)),
2197                         V4L2_MPEG_VIDEO_H264_LEVEL_3_1);
2198         }
2199         if (ctx->dev->devtype->product == CODA_960) {
2200                 v4l2_ctrl_new_std_menu(&ctx->ctrls, &coda_ctrl_ops,
2201                         V4L2_CID_MPEG_VIDEO_H264_LEVEL,
2202                         V4L2_MPEG_VIDEO_H264_LEVEL_4_0,
2203                         ~((1 << V4L2_MPEG_VIDEO_H264_LEVEL_2_0) |
2204                           (1 << V4L2_MPEG_VIDEO_H264_LEVEL_3_0) |
2205                           (1 << V4L2_MPEG_VIDEO_H264_LEVEL_3_1) |
2206                           (1 << V4L2_MPEG_VIDEO_H264_LEVEL_3_2) |
2207                           (1 << V4L2_MPEG_VIDEO_H264_LEVEL_4_0)),
2208                         V4L2_MPEG_VIDEO_H264_LEVEL_4_0);
2209         }
2210         v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
2211                 V4L2_CID_MPEG_VIDEO_MPEG4_I_FRAME_QP, 1, 31, 1, 2);
2212         v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
2213                 V4L2_CID_MPEG_VIDEO_MPEG4_P_FRAME_QP, 1, 31, 1, 2);
2214         v4l2_ctrl_new_std_menu(&ctx->ctrls, &coda_ctrl_ops,
2215                 V4L2_CID_MPEG_VIDEO_MPEG4_PROFILE,
2216                 V4L2_MPEG_VIDEO_MPEG4_PROFILE_SIMPLE, 0x0,
2217                 V4L2_MPEG_VIDEO_MPEG4_PROFILE_SIMPLE);
2218         if (ctx->dev->devtype->product == CODA_HX4 ||
2219             ctx->dev->devtype->product == CODA_7541 ||
2220             ctx->dev->devtype->product == CODA_960) {
2221                 v4l2_ctrl_new_std_menu(&ctx->ctrls, &coda_ctrl_ops,
2222                         V4L2_CID_MPEG_VIDEO_MPEG4_LEVEL,
2223                         V4L2_MPEG_VIDEO_MPEG4_LEVEL_5,
2224                         ~(1 << V4L2_MPEG_VIDEO_MPEG4_LEVEL_5),
2225                         V4L2_MPEG_VIDEO_MPEG4_LEVEL_5);
2226         }
2227         v4l2_ctrl_new_std_menu(&ctx->ctrls, &coda_ctrl_ops,
2228                 V4L2_CID_MPEG_VIDEO_MULTI_SLICE_MODE,
2229                 V4L2_MPEG_VIDEO_MULTI_SLICE_MODE_MAX_BYTES, 0x0,
2230                 V4L2_MPEG_VIDEO_MULTI_SLICE_MODE_SINGLE);
2231         v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
2232                 V4L2_CID_MPEG_VIDEO_MULTI_SLICE_MAX_MB, 1, 0x3fffffff, 1, 1);
2233         v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
2234                 V4L2_CID_MPEG_VIDEO_MULTI_SLICE_MAX_BYTES, 1, 0x3fffffff, 1,
2235                 500);
2236         v4l2_ctrl_new_std_menu(&ctx->ctrls, &coda_ctrl_ops,
2237                 V4L2_CID_MPEG_VIDEO_HEADER_MODE,
2238                 V4L2_MPEG_VIDEO_HEADER_MODE_JOINED_WITH_1ST_FRAME,
2239                 (1 << V4L2_MPEG_VIDEO_HEADER_MODE_SEPARATE),
2240                 V4L2_MPEG_VIDEO_HEADER_MODE_JOINED_WITH_1ST_FRAME);
2241         v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
2242                 V4L2_CID_MPEG_VIDEO_CYCLIC_INTRA_REFRESH_MB, 0,
2243                 1920 * 1088 / 256, 1, 0);
2244         v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
2245                 V4L2_CID_MPEG_VIDEO_VBV_DELAY, 0, 0x7fff, 1, 0);
2246         /*
2247          * The maximum VBV size value is 0x7fffffff bits,
2248          * one bit less than 262144 KiB
2249          */
2250         v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
2251                 V4L2_CID_MPEG_VIDEO_VBV_SIZE, 0, 262144, 1, 0);
2252 }
2253
2254 static void coda_jpeg_encode_ctrls(struct coda_ctx *ctx)
2255 {
2256         v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
2257                 V4L2_CID_JPEG_COMPRESSION_QUALITY, 5, 100, 1, 50);
2258         v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
2259                 V4L2_CID_JPEG_RESTART_INTERVAL, 0, 100, 1, 0);
2260 }
2261
2262 static void coda_decode_ctrls(struct coda_ctx *ctx)
2263 {
2264         u8 max;
2265
2266         ctx->h264_profile_ctrl = v4l2_ctrl_new_std_menu(&ctx->ctrls,
2267                 &coda_ctrl_ops, V4L2_CID_MPEG_VIDEO_H264_PROFILE,
2268                 V4L2_MPEG_VIDEO_H264_PROFILE_HIGH,
2269                 ~((1 << V4L2_MPEG_VIDEO_H264_PROFILE_BASELINE) |
2270                   (1 << V4L2_MPEG_VIDEO_H264_PROFILE_MAIN) |
2271                   (1 << V4L2_MPEG_VIDEO_H264_PROFILE_HIGH)),
2272                 V4L2_MPEG_VIDEO_H264_PROFILE_HIGH);
2273         if (ctx->h264_profile_ctrl)
2274                 ctx->h264_profile_ctrl->flags |= V4L2_CTRL_FLAG_READ_ONLY;
2275
2276         if (ctx->dev->devtype->product == CODA_HX4 ||
2277             ctx->dev->devtype->product == CODA_7541)
2278                 max = V4L2_MPEG_VIDEO_H264_LEVEL_4_0;
2279         else if (ctx->dev->devtype->product == CODA_960)
2280                 max = V4L2_MPEG_VIDEO_H264_LEVEL_4_1;
2281         else
2282                 return;
2283         ctx->h264_level_ctrl = v4l2_ctrl_new_std_menu(&ctx->ctrls,
2284                 &coda_ctrl_ops, V4L2_CID_MPEG_VIDEO_H264_LEVEL, max, 0, max);
2285         if (ctx->h264_level_ctrl)
2286                 ctx->h264_level_ctrl->flags |= V4L2_CTRL_FLAG_READ_ONLY;
2287
2288         ctx->mpeg2_profile_ctrl = v4l2_ctrl_new_std_menu(&ctx->ctrls,
2289                 &coda_ctrl_ops, V4L2_CID_MPEG_VIDEO_MPEG2_PROFILE,
2290                 V4L2_MPEG_VIDEO_MPEG2_PROFILE_HIGH, 0,
2291                 V4L2_MPEG_VIDEO_MPEG2_PROFILE_HIGH);
2292         if (ctx->mpeg2_profile_ctrl)
2293                 ctx->mpeg2_profile_ctrl->flags |= V4L2_CTRL_FLAG_READ_ONLY;
2294
2295         ctx->mpeg2_level_ctrl = v4l2_ctrl_new_std_menu(&ctx->ctrls,
2296                 &coda_ctrl_ops, V4L2_CID_MPEG_VIDEO_MPEG2_LEVEL,
2297                 V4L2_MPEG_VIDEO_MPEG2_LEVEL_HIGH, 0,
2298                 V4L2_MPEG_VIDEO_MPEG2_LEVEL_HIGH);
2299         if (ctx->mpeg2_level_ctrl)
2300                 ctx->mpeg2_level_ctrl->flags |= V4L2_CTRL_FLAG_READ_ONLY;
2301
2302         ctx->mpeg4_profile_ctrl = v4l2_ctrl_new_std_menu(&ctx->ctrls,
2303                 &coda_ctrl_ops, V4L2_CID_MPEG_VIDEO_MPEG4_PROFILE,
2304                 V4L2_MPEG_VIDEO_MPEG4_PROFILE_ADVANCED_CODING_EFFICIENCY, 0,
2305                 V4L2_MPEG_VIDEO_MPEG4_PROFILE_ADVANCED_CODING_EFFICIENCY);
2306         if (ctx->mpeg4_profile_ctrl)
2307                 ctx->mpeg4_profile_ctrl->flags |= V4L2_CTRL_FLAG_READ_ONLY;
2308
2309         ctx->mpeg4_level_ctrl = v4l2_ctrl_new_std_menu(&ctx->ctrls,
2310                 &coda_ctrl_ops, V4L2_CID_MPEG_VIDEO_MPEG4_LEVEL,
2311                 V4L2_MPEG_VIDEO_MPEG4_LEVEL_5, 0,
2312                 V4L2_MPEG_VIDEO_MPEG4_LEVEL_5);
2313         if (ctx->mpeg4_level_ctrl)
2314                 ctx->mpeg4_level_ctrl->flags |= V4L2_CTRL_FLAG_READ_ONLY;
2315 }
2316
2317 static int coda_ctrls_setup(struct coda_ctx *ctx)
2318 {
2319         v4l2_ctrl_handler_init(&ctx->ctrls, 2);
2320
2321         v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
2322                 V4L2_CID_HFLIP, 0, 1, 1, 0);
2323         v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
2324                 V4L2_CID_VFLIP, 0, 1, 1, 0);
2325         if (ctx->inst_type == CODA_INST_ENCODER) {
2326                 v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
2327                                   V4L2_CID_MIN_BUFFERS_FOR_OUTPUT,
2328                                   1, 1, 1, 1);
2329                 if (ctx->cvd->dst_formats[0] == V4L2_PIX_FMT_JPEG)
2330                         coda_jpeg_encode_ctrls(ctx);
2331                 else
2332                         coda_encode_ctrls(ctx);
2333         } else {
2334                 v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
2335                                   V4L2_CID_MIN_BUFFERS_FOR_CAPTURE,
2336                                   1, 1, 1, 1);
2337                 if (ctx->cvd->src_formats[0] == V4L2_PIX_FMT_H264)
2338                         coda_decode_ctrls(ctx);
2339         }
2340
2341         if (ctx->ctrls.error) {
2342                 v4l2_err(&ctx->dev->v4l2_dev,
2343                         "control initialization error (%d)",
2344                         ctx->ctrls.error);
2345                 return -EINVAL;
2346         }
2347
2348         return v4l2_ctrl_handler_setup(&ctx->ctrls);
2349 }
2350
2351 static int coda_queue_init(struct coda_ctx *ctx, struct vb2_queue *vq)
2352 {
2353         vq->drv_priv = ctx;
2354         vq->ops = &coda_qops;
2355         vq->buf_struct_size = sizeof(struct v4l2_m2m_buffer);
2356         vq->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_COPY;
2357         vq->lock = &ctx->dev->dev_mutex;
2358         /* One way to indicate end-of-stream for coda is to set the
2359          * bytesused == 0. However by default videobuf2 handles bytesused
2360          * equal to 0 as a special case and changes its value to the size
2361          * of the buffer. Set the allow_zero_bytesused flag, so
2362          * that videobuf2 will keep the value of bytesused intact.
2363          */
2364         vq->allow_zero_bytesused = 1;
2365         /*
2366          * We might be fine with no buffers on some of the queues, but that
2367          * would need to be reflected in job_ready(). Currently we expect all
2368          * queues to have at least one buffer queued.
2369          */
2370         vq->min_buffers_needed = 1;
2371         vq->dev = ctx->dev->dev;
2372
2373         return vb2_queue_init(vq);
2374 }
2375
2376 int coda_encoder_queue_init(void *priv, struct vb2_queue *src_vq,
2377                             struct vb2_queue *dst_vq)
2378 {
2379         int ret;
2380
2381         src_vq->type = V4L2_BUF_TYPE_VIDEO_OUTPUT;
2382         src_vq->io_modes = VB2_DMABUF | VB2_MMAP;
2383         src_vq->mem_ops = &vb2_dma_contig_memops;
2384
2385         ret = coda_queue_init(priv, src_vq);
2386         if (ret)
2387                 return ret;
2388
2389         dst_vq->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
2390         dst_vq->io_modes = VB2_DMABUF | VB2_MMAP;
2391         dst_vq->mem_ops = &vb2_dma_contig_memops;
2392
2393         return coda_queue_init(priv, dst_vq);
2394 }
2395
2396 int coda_decoder_queue_init(void *priv, struct vb2_queue *src_vq,
2397                             struct vb2_queue *dst_vq)
2398 {
2399         int ret;
2400
2401         src_vq->type = V4L2_BUF_TYPE_VIDEO_OUTPUT;
2402         src_vq->io_modes = VB2_DMABUF | VB2_MMAP | VB2_USERPTR;
2403         src_vq->mem_ops = &vb2_vmalloc_memops;
2404
2405         ret = coda_queue_init(priv, src_vq);
2406         if (ret)
2407                 return ret;
2408
2409         dst_vq->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
2410         dst_vq->io_modes = VB2_DMABUF | VB2_MMAP;
2411         dst_vq->dma_attrs = DMA_ATTR_NO_KERNEL_MAPPING;
2412         dst_vq->mem_ops = &vb2_dma_contig_memops;
2413
2414         return coda_queue_init(priv, dst_vq);
2415 }
2416
2417 /*
2418  * File operations
2419  */
2420
2421 static int coda_open(struct file *file)
2422 {
2423         struct video_device *vdev = video_devdata(file);
2424         struct coda_dev *dev = video_get_drvdata(vdev);
2425         struct coda_ctx *ctx;
2426         unsigned int max = ~0;
2427         char *name;
2428         int ret;
2429         int idx;
2430
2431         ctx = kzalloc(sizeof(*ctx), GFP_KERNEL);
2432         if (!ctx)
2433                 return -ENOMEM;
2434
2435         if (dev->devtype->product == CODA_DX6)
2436                 max = CODADX6_MAX_INSTANCES - 1;
2437         idx = ida_alloc_max(&dev->ida, max, GFP_KERNEL);
2438         if (idx < 0) {
2439                 ret = idx;
2440                 goto err_coda_max;
2441         }
2442
2443         name = kasprintf(GFP_KERNEL, "context%d", idx);
2444         if (!name) {
2445                 ret = -ENOMEM;
2446                 goto err_coda_name_init;
2447         }
2448
2449         ctx->debugfs_entry = debugfs_create_dir(name, dev->debugfs_root);
2450         kfree(name);
2451
2452         ctx->cvd = to_coda_video_device(vdev);
2453         ctx->inst_type = ctx->cvd->type;
2454         ctx->ops = ctx->cvd->ops;
2455         ctx->use_bit = !ctx->cvd->direct;
2456         init_completion(&ctx->completion);
2457         INIT_WORK(&ctx->pic_run_work, coda_pic_run_work);
2458         if (ctx->ops->seq_init_work)
2459                 INIT_WORK(&ctx->seq_init_work, ctx->ops->seq_init_work);
2460         if (ctx->ops->seq_end_work)
2461                 INIT_WORK(&ctx->seq_end_work, ctx->ops->seq_end_work);
2462         v4l2_fh_init(&ctx->fh, video_devdata(file));
2463         file->private_data = &ctx->fh;
2464         v4l2_fh_add(&ctx->fh);
2465         ctx->dev = dev;
2466         ctx->idx = idx;
2467
2468         coda_dbg(1, ctx, "open instance (%p)\n", ctx);
2469
2470         switch (dev->devtype->product) {
2471         case CODA_960:
2472                 /*
2473                  * Enabling the BWB when decoding can hang the firmware with
2474                  * certain streams. The issue was tracked as ENGR00293425 by
2475                  * Freescale. As a workaround, disable BWB for all decoders.
2476                  * The enable_bwb module parameter allows to override this.
2477                  */
2478                 if (enable_bwb || ctx->inst_type == CODA_INST_ENCODER)
2479                         ctx->frame_mem_ctrl = CODA9_FRAME_ENABLE_BWB;
2480                 /* fallthrough */
2481         case CODA_HX4:
2482         case CODA_7541:
2483                 ctx->reg_idx = 0;
2484                 break;
2485         default:
2486                 ctx->reg_idx = idx;
2487         }
2488         if (ctx->dev->vdoa && !disable_vdoa) {
2489                 ctx->vdoa = vdoa_context_create(dev->vdoa);
2490                 if (!ctx->vdoa)
2491                         v4l2_warn(&dev->v4l2_dev,
2492                                   "Failed to create vdoa context: not using vdoa");
2493         }
2494         ctx->use_vdoa = false;
2495
2496         /* Power up and upload firmware if necessary */
2497         ret = pm_runtime_get_sync(dev->dev);
2498         if (ret < 0) {
2499                 v4l2_err(&dev->v4l2_dev, "failed to power up: %d\n", ret);
2500                 goto err_pm_get;
2501         }
2502
2503         ret = clk_prepare_enable(dev->clk_per);
2504         if (ret)
2505                 goto err_clk_per;
2506
2507         ret = clk_prepare_enable(dev->clk_ahb);
2508         if (ret)
2509                 goto err_clk_ahb;
2510
2511         set_default_params(ctx);
2512         ctx->fh.m2m_ctx = v4l2_m2m_ctx_init(dev->m2m_dev, ctx,
2513                                             ctx->ops->queue_init);
2514         if (IS_ERR(ctx->fh.m2m_ctx)) {
2515                 ret = PTR_ERR(ctx->fh.m2m_ctx);
2516
2517                 v4l2_err(&dev->v4l2_dev, "%s return error (%d)\n",
2518                          __func__, ret);
2519                 goto err_ctx_init;
2520         }
2521
2522         ret = coda_ctrls_setup(ctx);
2523         if (ret) {
2524                 v4l2_err(&dev->v4l2_dev, "failed to setup coda controls\n");
2525                 goto err_ctrls_setup;
2526         }
2527
2528         ctx->fh.ctrl_handler = &ctx->ctrls;
2529
2530         mutex_init(&ctx->bitstream_mutex);
2531         mutex_init(&ctx->buffer_mutex);
2532         mutex_init(&ctx->wakeup_mutex);
2533         INIT_LIST_HEAD(&ctx->buffer_meta_list);
2534         spin_lock_init(&ctx->buffer_meta_lock);
2535
2536         return 0;
2537
2538 err_ctrls_setup:
2539         v4l2_m2m_ctx_release(ctx->fh.m2m_ctx);
2540 err_ctx_init:
2541         clk_disable_unprepare(dev->clk_ahb);
2542 err_clk_ahb:
2543         clk_disable_unprepare(dev->clk_per);
2544 err_clk_per:
2545         pm_runtime_put_sync(dev->dev);
2546 err_pm_get:
2547         v4l2_fh_del(&ctx->fh);
2548         v4l2_fh_exit(&ctx->fh);
2549 err_coda_name_init:
2550         ida_free(&dev->ida, ctx->idx);
2551 err_coda_max:
2552         kfree(ctx);
2553         return ret;
2554 }
2555
2556 static int coda_release(struct file *file)
2557 {
2558         struct coda_dev *dev = video_drvdata(file);
2559         struct coda_ctx *ctx = fh_to_ctx(file->private_data);
2560
2561         coda_dbg(1, ctx, "release instance (%p)\n", ctx);
2562
2563         if (ctx->inst_type == CODA_INST_DECODER && ctx->use_bit)
2564                 coda_bit_stream_end_flag(ctx);
2565
2566         /* If this instance is running, call .job_abort and wait for it to end */
2567         v4l2_m2m_ctx_release(ctx->fh.m2m_ctx);
2568
2569         if (ctx->vdoa)
2570                 vdoa_context_destroy(ctx->vdoa);
2571
2572         /* In case the instance was not running, we still need to call SEQ_END */
2573         if (ctx->ops->seq_end_work) {
2574                 queue_work(dev->workqueue, &ctx->seq_end_work);
2575                 flush_work(&ctx->seq_end_work);
2576         }
2577
2578         if (ctx->dev->devtype->product == CODA_DX6)
2579                 coda_free_aux_buf(dev, &ctx->workbuf);
2580
2581         v4l2_ctrl_handler_free(&ctx->ctrls);
2582         clk_disable_unprepare(dev->clk_ahb);
2583         clk_disable_unprepare(dev->clk_per);
2584         pm_runtime_put_sync(dev->dev);
2585         v4l2_fh_del(&ctx->fh);
2586         v4l2_fh_exit(&ctx->fh);
2587         ida_free(&dev->ida, ctx->idx);
2588         if (ctx->ops->release)
2589                 ctx->ops->release(ctx);
2590         debugfs_remove_recursive(ctx->debugfs_entry);
2591         kfree(ctx);
2592
2593         return 0;
2594 }
2595
2596 static const struct v4l2_file_operations coda_fops = {
2597         .owner          = THIS_MODULE,
2598         .open           = coda_open,
2599         .release        = coda_release,
2600         .poll           = v4l2_m2m_fop_poll,
2601         .unlocked_ioctl = video_ioctl2,
2602         .mmap           = v4l2_m2m_fop_mmap,
2603 };
2604
2605 static int coda_hw_init(struct coda_dev *dev)
2606 {
2607         u32 data;
2608         u16 *p;
2609         int i, ret;
2610
2611         ret = clk_prepare_enable(dev->clk_per);
2612         if (ret)
2613                 goto err_clk_per;
2614
2615         ret = clk_prepare_enable(dev->clk_ahb);
2616         if (ret)
2617                 goto err_clk_ahb;
2618
2619         reset_control_reset(dev->rstc);
2620
2621         /*
2622          * Copy the first CODA_ISRAM_SIZE in the internal SRAM.
2623          * The 16-bit chars in the code buffer are in memory access
2624          * order, re-sort them to CODA order for register download.
2625          * Data in this SRAM survives a reboot.
2626          */
2627         p = (u16 *)dev->codebuf.vaddr;
2628         if (dev->devtype->product == CODA_DX6) {
2629                 for (i = 0; i < (CODA_ISRAM_SIZE / 2); i++)  {
2630                         data = CODA_DOWN_ADDRESS_SET(i) |
2631                                 CODA_DOWN_DATA_SET(p[i ^ 1]);
2632                         coda_write(dev, data, CODA_REG_BIT_CODE_DOWN);
2633                 }
2634         } else {
2635                 for (i = 0; i < (CODA_ISRAM_SIZE / 2); i++) {
2636                         data = CODA_DOWN_ADDRESS_SET(i) |
2637                                 CODA_DOWN_DATA_SET(p[round_down(i, 4) +
2638                                                         3 - (i % 4)]);
2639                         coda_write(dev, data, CODA_REG_BIT_CODE_DOWN);
2640                 }
2641         }
2642
2643         /* Clear registers */
2644         for (i = 0; i < 64; i++)
2645                 coda_write(dev, 0, CODA_REG_BIT_CODE_BUF_ADDR + i * 4);
2646
2647         /* Tell the BIT where to find everything it needs */
2648         if (dev->devtype->product == CODA_960 ||
2649             dev->devtype->product == CODA_7541 ||
2650             dev->devtype->product == CODA_HX4) {
2651                 coda_write(dev, dev->tempbuf.paddr,
2652                                 CODA_REG_BIT_TEMP_BUF_ADDR);
2653                 coda_write(dev, 0, CODA_REG_BIT_BIT_STREAM_PARAM);
2654         } else {
2655                 coda_write(dev, dev->workbuf.paddr,
2656                               CODA_REG_BIT_WORK_BUF_ADDR);
2657         }
2658         coda_write(dev, dev->codebuf.paddr,
2659                       CODA_REG_BIT_CODE_BUF_ADDR);
2660         coda_write(dev, 0, CODA_REG_BIT_CODE_RUN);
2661
2662         /* Set default values */
2663         switch (dev->devtype->product) {
2664         case CODA_DX6:
2665                 coda_write(dev, CODADX6_STREAM_BUF_PIC_FLUSH,
2666                            CODA_REG_BIT_STREAM_CTRL);
2667                 break;
2668         default:
2669                 coda_write(dev, CODA7_STREAM_BUF_PIC_FLUSH,
2670                            CODA_REG_BIT_STREAM_CTRL);
2671         }
2672         if (dev->devtype->product == CODA_960)
2673                 coda_write(dev, CODA9_FRAME_ENABLE_BWB,
2674                                 CODA_REG_BIT_FRAME_MEM_CTRL);
2675         else
2676                 coda_write(dev, 0, CODA_REG_BIT_FRAME_MEM_CTRL);
2677
2678         if (dev->devtype->product != CODA_DX6)
2679                 coda_write(dev, 0, CODA7_REG_BIT_AXI_SRAM_USE);
2680
2681         coda_write(dev, CODA_INT_INTERRUPT_ENABLE,
2682                       CODA_REG_BIT_INT_ENABLE);
2683
2684         /* Reset VPU and start processor */
2685         data = coda_read(dev, CODA_REG_BIT_CODE_RESET);
2686         data |= CODA_REG_RESET_ENABLE;
2687         coda_write(dev, data, CODA_REG_BIT_CODE_RESET);
2688         udelay(10);
2689         data &= ~CODA_REG_RESET_ENABLE;
2690         coda_write(dev, data, CODA_REG_BIT_CODE_RESET);
2691         coda_write(dev, CODA_REG_RUN_ENABLE, CODA_REG_BIT_CODE_RUN);
2692
2693         clk_disable_unprepare(dev->clk_ahb);
2694         clk_disable_unprepare(dev->clk_per);
2695
2696         return 0;
2697
2698 err_clk_ahb:
2699         clk_disable_unprepare(dev->clk_per);
2700 err_clk_per:
2701         return ret;
2702 }
2703
2704 static int coda_register_device(struct coda_dev *dev, int i)
2705 {
2706         struct video_device *vfd = &dev->vfd[i];
2707         enum coda_inst_type type;
2708         int ret;
2709
2710         if (i >= dev->devtype->num_vdevs)
2711                 return -EINVAL;
2712         type = dev->devtype->vdevs[i]->type;
2713
2714         strscpy(vfd->name, dev->devtype->vdevs[i]->name, sizeof(vfd->name));
2715         vfd->fops       = &coda_fops;
2716         vfd->ioctl_ops  = &coda_ioctl_ops;
2717         vfd->release    = video_device_release_empty,
2718         vfd->lock       = &dev->dev_mutex;
2719         vfd->v4l2_dev   = &dev->v4l2_dev;
2720         vfd->vfl_dir    = VFL_DIR_M2M;
2721         vfd->device_caps = V4L2_CAP_VIDEO_M2M | V4L2_CAP_STREAMING;
2722         video_set_drvdata(vfd, dev);
2723
2724         /* Not applicable, use the selection API instead */
2725         v4l2_disable_ioctl(vfd, VIDIOC_CROPCAP);
2726         v4l2_disable_ioctl(vfd, VIDIOC_G_CROP);
2727         v4l2_disable_ioctl(vfd, VIDIOC_S_CROP);
2728
2729         ret = video_register_device(vfd, VFL_TYPE_GRABBER, 0);
2730         if (!ret)
2731                 v4l2_info(&dev->v4l2_dev, "%s registered as %s\n",
2732                           type == CODA_INST_ENCODER ? "encoder" : "decoder",
2733                           video_device_node_name(vfd));
2734         return ret;
2735 }
2736
2737 static void coda_copy_firmware(struct coda_dev *dev, const u8 * const buf,
2738                                size_t size)
2739 {
2740         u32 *src = (u32 *)buf;
2741
2742         /* Check if the firmware has a 16-byte Freescale header, skip it */
2743         if (buf[0] == 'M' && buf[1] == 'X')
2744                 src += 4;
2745         /*
2746          * Check whether the firmware is in native order or pre-reordered for
2747          * memory access. The first instruction opcode always is 0xe40e.
2748          */
2749         if (__le16_to_cpup((__le16 *)src) == 0xe40e) {
2750                 u32 *dst = dev->codebuf.vaddr;
2751                 int i;
2752
2753                 /* Firmware in native order, reorder while copying */
2754                 if (dev->devtype->product == CODA_DX6) {
2755                         for (i = 0; i < (size - 16) / 4; i++)
2756                                 dst[i] = (src[i] << 16) | (src[i] >> 16);
2757                 } else {
2758                         for (i = 0; i < (size - 16) / 4; i += 2) {
2759                                 dst[i] = (src[i + 1] << 16) | (src[i + 1] >> 16);
2760                                 dst[i + 1] = (src[i] << 16) | (src[i] >> 16);
2761                         }
2762                 }
2763         } else {
2764                 /* Copy the already reordered firmware image */
2765                 memcpy(dev->codebuf.vaddr, src, size);
2766         }
2767 }
2768
2769 static void coda_fw_callback(const struct firmware *fw, void *context);
2770
2771 static int coda_firmware_request(struct coda_dev *dev)
2772 {
2773         char *fw;
2774
2775         if (dev->firmware >= ARRAY_SIZE(dev->devtype->firmware))
2776                 return -EINVAL;
2777
2778         fw = dev->devtype->firmware[dev->firmware];
2779
2780         dev_dbg(dev->dev, "requesting firmware '%s' for %s\n", fw,
2781                 coda_product_name(dev->devtype->product));
2782
2783         return request_firmware_nowait(THIS_MODULE, true, fw, dev->dev,
2784                                        GFP_KERNEL, dev, coda_fw_callback);
2785 }
2786
2787 static void coda_fw_callback(const struct firmware *fw, void *context)
2788 {
2789         struct coda_dev *dev = context;
2790         int i, ret;
2791
2792         if (!fw) {
2793                 dev->firmware++;
2794                 ret = coda_firmware_request(dev);
2795                 if (ret < 0) {
2796                         v4l2_err(&dev->v4l2_dev, "firmware request failed\n");
2797                         goto put_pm;
2798                 }
2799                 return;
2800         }
2801         if (dev->firmware > 0) {
2802                 /*
2803                  * Since we can't suppress warnings for failed asynchronous
2804                  * firmware requests, report that the fallback firmware was
2805                  * found.
2806                  */
2807                 dev_info(dev->dev, "Using fallback firmware %s\n",
2808                          dev->devtype->firmware[dev->firmware]);
2809         }
2810
2811         /* allocate auxiliary per-device code buffer for the BIT processor */
2812         ret = coda_alloc_aux_buf(dev, &dev->codebuf, fw->size, "codebuf",
2813                                  dev->debugfs_root);
2814         if (ret < 0)
2815                 goto put_pm;
2816
2817         coda_copy_firmware(dev, fw->data, fw->size);
2818         release_firmware(fw);
2819
2820         ret = coda_hw_init(dev);
2821         if (ret < 0) {
2822                 v4l2_err(&dev->v4l2_dev, "HW initialization failed\n");
2823                 goto put_pm;
2824         }
2825
2826         ret = coda_check_firmware(dev);
2827         if (ret < 0)
2828                 goto put_pm;
2829
2830         dev->m2m_dev = v4l2_m2m_init(&coda_m2m_ops);
2831         if (IS_ERR(dev->m2m_dev)) {
2832                 v4l2_err(&dev->v4l2_dev, "Failed to init mem2mem device\n");
2833                 goto put_pm;
2834         }
2835
2836         for (i = 0; i < dev->devtype->num_vdevs; i++) {
2837                 ret = coda_register_device(dev, i);
2838                 if (ret) {
2839                         v4l2_err(&dev->v4l2_dev,
2840                                  "Failed to register %s video device: %d\n",
2841                                  dev->devtype->vdevs[i]->name, ret);
2842                         goto rel_vfd;
2843                 }
2844         }
2845
2846         pm_runtime_put_sync(dev->dev);
2847         return;
2848
2849 rel_vfd:
2850         while (--i >= 0)
2851                 video_unregister_device(&dev->vfd[i]);
2852         v4l2_m2m_release(dev->m2m_dev);
2853 put_pm:
2854         pm_runtime_put_sync(dev->dev);
2855 }
2856
2857 enum coda_platform {
2858         CODA_IMX27,
2859         CODA_IMX51,
2860         CODA_IMX53,
2861         CODA_IMX6Q,
2862         CODA_IMX6DL,
2863 };
2864
2865 static const struct coda_devtype coda_devdata[] = {
2866         [CODA_IMX27] = {
2867                 .firmware     = {
2868                         "vpu_fw_imx27_TO2.bin",
2869                         "vpu/vpu_fw_imx27_TO2.bin",
2870                         "v4l-codadx6-imx27.bin"
2871                 },
2872                 .product      = CODA_DX6,
2873                 .codecs       = codadx6_codecs,
2874                 .num_codecs   = ARRAY_SIZE(codadx6_codecs),
2875                 .vdevs        = codadx6_video_devices,
2876                 .num_vdevs    = ARRAY_SIZE(codadx6_video_devices),
2877                 .workbuf_size = 288 * 1024 + FMO_SLICE_SAVE_BUF_SIZE * 8 * 1024,
2878                 .iram_size    = 0xb000,
2879         },
2880         [CODA_IMX51] = {
2881                 .firmware     = {
2882                         "vpu_fw_imx51.bin",
2883                         "vpu/vpu_fw_imx51.bin",
2884                         "v4l-codahx4-imx51.bin"
2885                 },
2886                 .product      = CODA_HX4,
2887                 .codecs       = codahx4_codecs,
2888                 .num_codecs   = ARRAY_SIZE(codahx4_codecs),
2889                 .vdevs        = codahx4_video_devices,
2890                 .num_vdevs    = ARRAY_SIZE(codahx4_video_devices),
2891                 .workbuf_size = 128 * 1024,
2892                 .tempbuf_size = 304 * 1024,
2893                 .iram_size    = 0x14000,
2894         },
2895         [CODA_IMX53] = {
2896                 .firmware     = {
2897                         "vpu_fw_imx53.bin",
2898                         "vpu/vpu_fw_imx53.bin",
2899                         "v4l-coda7541-imx53.bin"
2900                 },
2901                 .product      = CODA_7541,
2902                 .codecs       = coda7_codecs,
2903                 .num_codecs   = ARRAY_SIZE(coda7_codecs),
2904                 .vdevs        = coda7_video_devices,
2905                 .num_vdevs    = ARRAY_SIZE(coda7_video_devices),
2906                 .workbuf_size = 128 * 1024,
2907                 .tempbuf_size = 304 * 1024,
2908                 .iram_size    = 0x14000,
2909         },
2910         [CODA_IMX6Q] = {
2911                 .firmware     = {
2912                         "vpu_fw_imx6q.bin",
2913                         "vpu/vpu_fw_imx6q.bin",
2914                         "v4l-coda960-imx6q.bin"
2915                 },
2916                 .product      = CODA_960,
2917                 .codecs       = coda9_codecs,
2918                 .num_codecs   = ARRAY_SIZE(coda9_codecs),
2919                 .vdevs        = coda9_video_devices,
2920                 .num_vdevs    = ARRAY_SIZE(coda9_video_devices),
2921                 .workbuf_size = 80 * 1024,
2922                 .tempbuf_size = 204 * 1024,
2923                 .iram_size    = 0x21000,
2924         },
2925         [CODA_IMX6DL] = {
2926                 .firmware     = {
2927                         "vpu_fw_imx6d.bin",
2928                         "vpu/vpu_fw_imx6d.bin",
2929                         "v4l-coda960-imx6dl.bin"
2930                 },
2931                 .product      = CODA_960,
2932                 .codecs       = coda9_codecs,
2933                 .num_codecs   = ARRAY_SIZE(coda9_codecs),
2934                 .vdevs        = coda9_video_devices,
2935                 .num_vdevs    = ARRAY_SIZE(coda9_video_devices),
2936                 .workbuf_size = 80 * 1024,
2937                 .tempbuf_size = 204 * 1024,
2938                 .iram_size    = 0x1f000, /* leave 4k for suspend code */
2939         },
2940 };
2941
2942 static const struct platform_device_id coda_platform_ids[] = {
2943         { .name = "coda-imx27", .driver_data = CODA_IMX27 },
2944         { /* sentinel */ }
2945 };
2946 MODULE_DEVICE_TABLE(platform, coda_platform_ids);
2947
2948 #ifdef CONFIG_OF
2949 static const struct of_device_id coda_dt_ids[] = {
2950         { .compatible = "fsl,imx27-vpu", .data = &coda_devdata[CODA_IMX27] },
2951         { .compatible = "fsl,imx51-vpu", .data = &coda_devdata[CODA_IMX51] },
2952         { .compatible = "fsl,imx53-vpu", .data = &coda_devdata[CODA_IMX53] },
2953         { .compatible = "fsl,imx6q-vpu", .data = &coda_devdata[CODA_IMX6Q] },
2954         { .compatible = "fsl,imx6dl-vpu", .data = &coda_devdata[CODA_IMX6DL] },
2955         { /* sentinel */ }
2956 };
2957 MODULE_DEVICE_TABLE(of, coda_dt_ids);
2958 #endif
2959
2960 static int coda_probe(struct platform_device *pdev)
2961 {
2962         const struct of_device_id *of_id =
2963                         of_match_device(of_match_ptr(coda_dt_ids), &pdev->dev);
2964         const struct platform_device_id *pdev_id;
2965         struct coda_platform_data *pdata = pdev->dev.platform_data;
2966         struct device_node *np = pdev->dev.of_node;
2967         struct gen_pool *pool;
2968         struct coda_dev *dev;
2969         int ret, irq;
2970
2971         dev = devm_kzalloc(&pdev->dev, sizeof(*dev), GFP_KERNEL);
2972         if (!dev)
2973                 return -ENOMEM;
2974
2975         pdev_id = of_id ? of_id->data : platform_get_device_id(pdev);
2976
2977         if (of_id)
2978                 dev->devtype = of_id->data;
2979         else if (pdev_id)
2980                 dev->devtype = &coda_devdata[pdev_id->driver_data];
2981         else
2982                 return -EINVAL;
2983
2984         dev->dev = &pdev->dev;
2985         dev->clk_per = devm_clk_get(&pdev->dev, "per");
2986         if (IS_ERR(dev->clk_per)) {
2987                 dev_err(&pdev->dev, "Could not get per clock\n");
2988                 return PTR_ERR(dev->clk_per);
2989         }
2990
2991         dev->clk_ahb = devm_clk_get(&pdev->dev, "ahb");
2992         if (IS_ERR(dev->clk_ahb)) {
2993                 dev_err(&pdev->dev, "Could not get ahb clock\n");
2994                 return PTR_ERR(dev->clk_ahb);
2995         }
2996
2997         /* Get  memory for physical registers */
2998         dev->regs_base = devm_platform_ioremap_resource(pdev, 0);
2999         if (IS_ERR(dev->regs_base))
3000                 return PTR_ERR(dev->regs_base);
3001
3002         /* IRQ */
3003         irq = platform_get_irq_byname(pdev, "bit");
3004         if (irq < 0)
3005                 irq = platform_get_irq(pdev, 0);
3006         if (irq < 0) {
3007                 dev_err(&pdev->dev, "failed to get irq resource\n");
3008                 return irq;
3009         }
3010
3011         ret = devm_request_irq(&pdev->dev, irq, coda_irq_handler, 0,
3012                                dev_name(&pdev->dev), dev);
3013         if (ret < 0) {
3014                 dev_err(&pdev->dev, "failed to request irq: %d\n", ret);
3015                 return ret;
3016         }
3017
3018         /* JPEG IRQ */
3019         if (dev->devtype->product == CODA_960) {
3020                 irq = platform_get_irq_byname(pdev, "jpeg");
3021                 if (irq < 0)
3022                         return irq;
3023
3024                 ret = devm_request_threaded_irq(&pdev->dev, irq, NULL,
3025                                                 coda9_jpeg_irq_handler,
3026                                                 IRQF_ONESHOT, CODA_NAME " jpeg",
3027                                                 dev);
3028                 if (ret < 0) {
3029                         dev_err(&pdev->dev, "failed to request jpeg irq\n");
3030                         return ret;
3031                 }
3032         }
3033
3034         dev->rstc = devm_reset_control_get_optional_exclusive(&pdev->dev,
3035                                                               NULL);
3036         if (IS_ERR(dev->rstc)) {
3037                 ret = PTR_ERR(dev->rstc);
3038                 dev_err(&pdev->dev, "failed get reset control: %d\n", ret);
3039                 return ret;
3040         }
3041
3042         /* Get IRAM pool from device tree or platform data */
3043         pool = of_gen_pool_get(np, "iram", 0);
3044         if (!pool && pdata)
3045                 pool = gen_pool_get(pdata->iram_dev, NULL);
3046         if (!pool) {
3047                 dev_err(&pdev->dev, "iram pool not available\n");
3048                 return -ENOMEM;
3049         }
3050         dev->iram_pool = pool;
3051
3052         /* Get vdoa_data if supported by the platform */
3053         dev->vdoa = coda_get_vdoa_data();
3054         if (PTR_ERR(dev->vdoa) == -EPROBE_DEFER)
3055                 return -EPROBE_DEFER;
3056
3057         ret = v4l2_device_register(&pdev->dev, &dev->v4l2_dev);
3058         if (ret)
3059                 return ret;
3060
3061         mutex_init(&dev->dev_mutex);
3062         mutex_init(&dev->coda_mutex);
3063         ida_init(&dev->ida);
3064
3065         dev->debugfs_root = debugfs_create_dir("coda", NULL);
3066         if (!dev->debugfs_root)
3067                 dev_warn(&pdev->dev, "failed to create debugfs root\n");
3068
3069         /* allocate auxiliary per-device buffers for the BIT processor */
3070         if (dev->devtype->product == CODA_DX6) {
3071                 ret = coda_alloc_aux_buf(dev, &dev->workbuf,
3072                                          dev->devtype->workbuf_size, "workbuf",
3073                                          dev->debugfs_root);
3074                 if (ret < 0)
3075                         goto err_v4l2_register;
3076         }
3077
3078         if (dev->devtype->tempbuf_size) {
3079                 ret = coda_alloc_aux_buf(dev, &dev->tempbuf,
3080                                          dev->devtype->tempbuf_size, "tempbuf",
3081                                          dev->debugfs_root);
3082                 if (ret < 0)
3083                         goto err_v4l2_register;
3084         }
3085
3086         dev->iram.size = dev->devtype->iram_size;
3087         dev->iram.vaddr = gen_pool_dma_alloc(dev->iram_pool, dev->iram.size,
3088                                              &dev->iram.paddr);
3089         if (!dev->iram.vaddr) {
3090                 dev_warn(&pdev->dev, "unable to alloc iram\n");
3091         } else {
3092                 memset(dev->iram.vaddr, 0, dev->iram.size);
3093                 dev->iram.blob.data = dev->iram.vaddr;
3094                 dev->iram.blob.size = dev->iram.size;
3095                 dev->iram.dentry = debugfs_create_blob("iram", 0644,
3096                                                        dev->debugfs_root,
3097                                                        &dev->iram.blob);
3098         }
3099
3100         dev->workqueue = alloc_workqueue("coda", WQ_UNBOUND | WQ_MEM_RECLAIM, 1);
3101         if (!dev->workqueue) {
3102                 dev_err(&pdev->dev, "unable to alloc workqueue\n");
3103                 ret = -ENOMEM;
3104                 goto err_v4l2_register;
3105         }
3106
3107         platform_set_drvdata(pdev, dev);
3108
3109         /*
3110          * Start activated so we can directly call coda_hw_init in
3111          * coda_fw_callback regardless of whether CONFIG_PM is
3112          * enabled or whether the device is associated with a PM domain.
3113          */
3114         pm_runtime_get_noresume(&pdev->dev);
3115         pm_runtime_set_active(&pdev->dev);
3116         pm_runtime_enable(&pdev->dev);
3117
3118         ret = coda_firmware_request(dev);
3119         if (ret)
3120                 goto err_alloc_workqueue;
3121         return 0;
3122
3123 err_alloc_workqueue:
3124         destroy_workqueue(dev->workqueue);
3125 err_v4l2_register:
3126         v4l2_device_unregister(&dev->v4l2_dev);
3127         return ret;
3128 }
3129
3130 static int coda_remove(struct platform_device *pdev)
3131 {
3132         struct coda_dev *dev = platform_get_drvdata(pdev);
3133         int i;
3134
3135         for (i = 0; i < ARRAY_SIZE(dev->vfd); i++) {
3136                 if (video_get_drvdata(&dev->vfd[i]))
3137                         video_unregister_device(&dev->vfd[i]);
3138         }
3139         if (dev->m2m_dev)
3140                 v4l2_m2m_release(dev->m2m_dev);
3141         pm_runtime_disable(&pdev->dev);
3142         v4l2_device_unregister(&dev->v4l2_dev);
3143         destroy_workqueue(dev->workqueue);
3144         if (dev->iram.vaddr)
3145                 gen_pool_free(dev->iram_pool, (unsigned long)dev->iram.vaddr,
3146                               dev->iram.size);
3147         coda_free_aux_buf(dev, &dev->codebuf);
3148         coda_free_aux_buf(dev, &dev->tempbuf);
3149         coda_free_aux_buf(dev, &dev->workbuf);
3150         debugfs_remove_recursive(dev->debugfs_root);
3151         ida_destroy(&dev->ida);
3152         return 0;
3153 }
3154
3155 #ifdef CONFIG_PM
3156 static int coda_runtime_resume(struct device *dev)
3157 {
3158         struct coda_dev *cdev = dev_get_drvdata(dev);
3159         int ret = 0;
3160
3161         if (dev->pm_domain && cdev->codebuf.vaddr) {
3162                 ret = coda_hw_init(cdev);
3163                 if (ret)
3164                         v4l2_err(&cdev->v4l2_dev, "HW initialization failed\n");
3165         }
3166
3167         return ret;
3168 }
3169 #endif
3170
3171 static const struct dev_pm_ops coda_pm_ops = {
3172         SET_RUNTIME_PM_OPS(NULL, coda_runtime_resume, NULL)
3173 };
3174
3175 static struct platform_driver coda_driver = {
3176         .probe  = coda_probe,
3177         .remove = coda_remove,
3178         .driver = {
3179                 .name   = CODA_NAME,
3180                 .of_match_table = of_match_ptr(coda_dt_ids),
3181                 .pm     = &coda_pm_ops,
3182         },
3183         .id_table = coda_platform_ids,
3184 };
3185
3186 module_platform_driver(coda_driver);
3187
3188 MODULE_LICENSE("GPL");
3189 MODULE_AUTHOR("Javier Martin <javier.martin@vista-silicon.com>");
3190 MODULE_DESCRIPTION("Coda multi-standard codec V4L2 driver");