drivers/media/pci/solo6x10/solo6x10-v4l2-enc.c

   1 /*
   2  * Copyright (C) 2010-2013 Bluecherry, LLC <http://www.bluecherrydvr.com>
   3  *
   4  * Original author:
   5  * Ben Collins <bcollins@ubuntu.com>
   6  *
   7  * Additional work by:
   8  * John Brooks <john.brooks@bluecherry.net>
   9  *
  10  * This program is free software; you can redistribute it and/or modify
  11  * it under the terms of the GNU General Public License as published by
  12  * the Free Software Foundation; either version 2 of the License, or
  13  * (at your option) any later version.
  14  *
  15  * This program is distributed in the hope that it will be useful,
  16  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  17  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18  * GNU General Public License for more details.
  19  */
  20
  21 #include <linux/kernel.h>
  22 #include <linux/module.h>
  23 #include <linux/kthread.h>
  24 #include <linux/freezer.h>
  25
  26 #include <media/v4l2-ioctl.h>
  27 #include <media/v4l2-common.h>
  28 #include <media/v4l2-event.h>
  29 #include <media/videobuf2-dma-sg.h>
  30
  31 #include "solo6x10.h"
  32 #include "solo6x10-tw28.h"
  33 #include "solo6x10-jpeg.h"
  34
  35 #define MIN_VID_BUFFERS         2
  36 #define FRAME_BUF_SIZE          (400 * 1024)
  37 #define MP4_QS                  16
  38 #define DMA_ALIGN               4096
  39
  40 /* 6010 M4V */
  41 static u8 vop_6010_ntsc_d1[] = {
  42         0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x01, 0x20,
  43         0x02, 0x48, 0x1d, 0xc0, 0x00, 0x40, 0x00, 0x40,
  44         0x00, 0x40, 0x00, 0x80, 0x00, 0x97, 0x53, 0x04,
  45         0x1f, 0x4c, 0x58, 0x10, 0xf0, 0x71, 0x18, 0x3f,
  46 };
  47
  48 static u8 vop_6010_ntsc_cif[] = {
  49         0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x01, 0x20,
  50         0x02, 0x48, 0x1d, 0xc0, 0x00, 0x40, 0x00, 0x40,
  51         0x00, 0x40, 0x00, 0x80, 0x00, 0x97, 0x53, 0x04,
  52         0x1f, 0x4c, 0x2c, 0x10, 0x78, 0x51, 0x18, 0x3f,
  53 };
  54
  55 static u8 vop_6010_pal_d1[] = {
  56         0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x01, 0x20,
  57         0x02, 0x48, 0x15, 0xc0, 0x00, 0x40, 0x00, 0x40,
  58         0x00, 0x40, 0x00, 0x80, 0x00, 0x97, 0x53, 0x04,
  59         0x1f, 0x4c, 0x58, 0x11, 0x20, 0x71, 0x18, 0x3f,
  60 };
  61
  62 static u8 vop_6010_pal_cif[] = {
  63         0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x01, 0x20,
  64         0x02, 0x48, 0x15, 0xc0, 0x00, 0x40, 0x00, 0x40,
  65         0x00, 0x40, 0x00, 0x80, 0x00, 0x97, 0x53, 0x04,
  66         0x1f, 0x4c, 0x2c, 0x10, 0x90, 0x51, 0x18, 0x3f,
  67 };
  68
  69 /* 6110 h.264 */
  70 static u8 vop_6110_ntsc_d1[] = {
  71         0x00, 0x00, 0x00, 0x01, 0x67, 0x42, 0x00, 0x1e,
  72         0x9a, 0x74, 0x05, 0x81, 0xec, 0x80, 0x00, 0x00,
  73         0x00, 0x01, 0x68, 0xce, 0x32, 0x28, 0x00, 0x00,
  74 };
  75
  76 static u8 vop_6110_ntsc_cif[] = {
  77         0x00, 0x00, 0x00, 0x01, 0x67, 0x42, 0x00, 0x1e,
  78         0x9a, 0x74, 0x0b, 0x0f, 0xc8, 0x00, 0x00, 0x00,
  79         0x01, 0x68, 0xce, 0x32, 0x28, 0x00, 0x00, 0x00,
  80 };
  81
  82 static u8 vop_6110_pal_d1[] = {
  83         0x00, 0x00, 0x00, 0x01, 0x67, 0x42, 0x00, 0x1e,
  84         0x9a, 0x74, 0x05, 0x80, 0x93, 0x20, 0x00, 0x00,
  85         0x00, 0x01, 0x68, 0xce, 0x32, 0x28, 0x00, 0x00,
  86 };
  87
  88 static u8 vop_6110_pal_cif[] = {
  89         0x00, 0x00, 0x00, 0x01, 0x67, 0x42, 0x00, 0x1e,
  90         0x9a, 0x74, 0x0b, 0x04, 0xb2, 0x00, 0x00, 0x00,
  91         0x01, 0x68, 0xce, 0x32, 0x28, 0x00, 0x00, 0x00,
  92 };
  93
  94 typedef __le32 vop_header[16];
  95
  96 struct solo_enc_buf {
  97         enum solo_enc_types     type;
  98         const vop_header        *vh;
  99         int                     motion;
 100 };
 101
 102 static int solo_is_motion_on(struct solo_enc_dev *solo_enc)
 103 {
 104         struct solo_dev *solo_dev = solo_enc->solo_dev;
 105
 106         return (solo_dev->motion_mask >> solo_enc->ch) & 1;
 107 }
 108
 109 static int solo_motion_detected(struct solo_enc_dev *solo_enc)
 110 {
 111         struct solo_dev *solo_dev = solo_enc->solo_dev;
 112         unsigned long flags;
 113         u32 ch_mask = 1 << solo_enc->ch;
 114         int ret = 0;
 115
 116         spin_lock_irqsave(&solo_enc->motion_lock, flags);
 117         if (solo_reg_read(solo_dev, SOLO_VI_MOT_STATUS) & ch_mask) {
 118                 solo_reg_write(solo_dev, SOLO_VI_MOT_CLEAR, ch_mask);
 119                 ret = 1;
 120         }
 121         spin_unlock_irqrestore(&solo_enc->motion_lock, flags);
 122
 123         return ret;
 124 }
 125
 126 static void solo_motion_toggle(struct solo_enc_dev *solo_enc, int on)
 127 {
 128         struct solo_dev *solo_dev = solo_enc->solo_dev;
 129         u32 mask = 1 << solo_enc->ch;
 130         unsigned long flags;
 131
 132         spin_lock_irqsave(&solo_enc->motion_lock, flags);
 133
 134         if (on)
 135                 solo_dev->motion_mask |= mask;
 136         else
 137                 solo_dev->motion_mask &= ~mask;
 138
 139         solo_reg_write(solo_dev, SOLO_VI_MOT_CLEAR, mask);
 140
 141         solo_reg_write(solo_dev, SOLO_VI_MOT_ADR,
 142                        SOLO_VI_MOTION_EN(solo_dev->motion_mask) |
 143                        (SOLO_MOTION_EXT_ADDR(solo_dev) >> 16));
 144
 145         spin_unlock_irqrestore(&solo_enc->motion_lock, flags);
 146 }
 147
 148 void solo_update_mode(struct solo_enc_dev *solo_enc)
 149 {
 150         struct solo_dev *solo_dev = solo_enc->solo_dev;
 151         int vop_len;
 152         u8 *vop;
 153
 154         solo_enc->interlaced = (solo_enc->mode & 0x08) ? 1 : 0;
 155         solo_enc->bw_weight = max(solo_dev->fps / solo_enc->interval, 1);
 156
 157         if (solo_enc->mode == SOLO_ENC_MODE_CIF) {
 158                 solo_enc->width = solo_dev->video_hsize >> 1;
 159                 solo_enc->height = solo_dev->video_vsize;
 160                 if (solo_dev->type == SOLO_DEV_6110) {
 161                         if (solo_dev->video_type == SOLO_VO_FMT_TYPE_NTSC) {
 162                                 vop = vop_6110_ntsc_cif;
 163                                 vop_len = sizeof(vop_6110_ntsc_cif);
 164                         } else {
 165                                 vop = vop_6110_pal_cif;
 166                                 vop_len = sizeof(vop_6110_pal_cif);
 167                         }
 168                 } else {
 169                         if (solo_dev->video_type == SOLO_VO_FMT_TYPE_NTSC) {
 170                                 vop = vop_6010_ntsc_cif;
 171                                 vop_len = sizeof(vop_6010_ntsc_cif);
 172                         } else {
 173                                 vop = vop_6010_pal_cif;
 174                                 vop_len = sizeof(vop_6010_pal_cif);
 175                         }
 176                 }
 177         } else {
 178                 solo_enc->width = solo_dev->video_hsize;
 179                 solo_enc->height = solo_dev->video_vsize << 1;
 180                 solo_enc->bw_weight <<= 2;
 181                 if (solo_dev->type == SOLO_DEV_6110) {
 182                         if (solo_dev->video_type == SOLO_VO_FMT_TYPE_NTSC) {
 183                                 vop = vop_6110_ntsc_d1;
 184                                 vop_len = sizeof(vop_6110_ntsc_d1);
 185                         } else {
 186                                 vop = vop_6110_pal_d1;
 187                                 vop_len = sizeof(vop_6110_pal_d1);
 188                         }
 189                 } else {
 190                         if (solo_dev->video_type == SOLO_VO_FMT_TYPE_NTSC) {
 191                                 vop = vop_6010_ntsc_d1;
 192                                 vop_len = sizeof(vop_6010_ntsc_d1);
 193                         } else {
 194                                 vop = vop_6010_pal_d1;
 195                                 vop_len = sizeof(vop_6010_pal_d1);
 196                         }
 197                 }
 198         }
 199
 200         memcpy(solo_enc->vop, vop, vop_len);
 201
 202         /* Some fixups for 6010/M4V */
 203         if (solo_dev->type == SOLO_DEV_6010) {
 204                 u16 fps = solo_dev->fps * 1000;
 205                 u16 interval = solo_enc->interval * 1000;
 206
 207                 vop = solo_enc->vop;
 208
 209                 /* Frame rate and interval */
 210                 vop[22] = fps >> 4;
 211                 vop[23] = ((fps << 4) & 0xf0) | 0x0c
 212                         | ((interval >> 13) & 0x3);
 213                 vop[24] = (interval >> 5) & 0xff;
 214                 vop[25] = ((interval << 3) & 0xf8) | 0x04;
 215         }
 216
 217         solo_enc->vop_len = vop_len;
 218
 219         /* Now handle the jpeg header */
 220         vop = solo_enc->jpeg_header;
 221         vop[SOF0_START + 5] = 0xff & (solo_enc->height >> 8);
 222         vop[SOF0_START + 6] = 0xff & solo_enc->height;
 223         vop[SOF0_START + 7] = 0xff & (solo_enc->width >> 8);
 224         vop[SOF0_START + 8] = 0xff & solo_enc->width;
 225
 226         memcpy(vop + DQT_START,
 227                jpeg_dqt[solo_g_jpeg_qp(solo_dev, solo_enc->ch)], DQT_LEN);
 228 }
 229
 230 static int solo_enc_on(struct solo_enc_dev *solo_enc)
 231 {
 232         u8 ch = solo_enc->ch;
 233         struct solo_dev *solo_dev = solo_enc->solo_dev;
 234         u8 interval;
 235
 236         solo_update_mode(solo_enc);
 237
 238         /* Make sure to do a bandwidth check */
 239         if (solo_enc->bw_weight > solo_dev->enc_bw_remain)
 240                 return -EBUSY;
 241         solo_enc->sequence = 0;
 242         solo_dev->enc_bw_remain -= solo_enc->bw_weight;
 243
 244         if (solo_enc->type == SOLO_ENC_TYPE_EXT)
 245                 solo_reg_write(solo_dev, SOLO_CAP_CH_COMP_ENA_E(ch), 1);
 246
 247         /* Disable all encoding for this channel */
 248         solo_reg_write(solo_dev, SOLO_CAP_CH_SCALE(ch), 0);
 249
 250         /* Common for both std and ext encoding */
 251         solo_reg_write(solo_dev, SOLO_VE_CH_INTL(ch),
 252                        solo_enc->interlaced ? 1 : 0);
 253
 254         if (solo_enc->interlaced)
 255                 interval = solo_enc->interval - 1;
 256         else
 257                 interval = solo_enc->interval;
 258
 259         /* Standard encoding only */
 260         solo_reg_write(solo_dev, SOLO_VE_CH_GOP(ch), solo_enc->gop);
 261         solo_reg_write(solo_dev, SOLO_VE_CH_QP(ch), solo_enc->qp);
 262         solo_reg_write(solo_dev, SOLO_CAP_CH_INTV(ch), interval);
 263
 264         /* Extended encoding only */
 265         solo_reg_write(solo_dev, SOLO_VE_CH_GOP_E(ch), solo_enc->gop);
 266         solo_reg_write(solo_dev, SOLO_VE_CH_QP_E(ch), solo_enc->qp);
 267         solo_reg_write(solo_dev, SOLO_CAP_CH_INTV_E(ch), interval);
 268
 269         /* Enables the standard encoder */
 270         solo_reg_write(solo_dev, SOLO_CAP_CH_SCALE(ch), solo_enc->mode);
 271
 272         return 0;
 273 }
 274
 275 static void solo_enc_off(struct solo_enc_dev *solo_enc)
 276 {
 277         struct solo_dev *solo_dev = solo_enc->solo_dev;
 278
 279         solo_dev->enc_bw_remain += solo_enc->bw_weight;
 280
 281         solo_reg_write(solo_dev, SOLO_CAP_CH_SCALE(solo_enc->ch), 0);
 282         solo_reg_write(solo_dev, SOLO_CAP_CH_COMP_ENA_E(solo_enc->ch), 0);
 283 }
 284
 285 static int enc_get_mpeg_dma(struct solo_dev *solo_dev, dma_addr_t dma,
 286                               unsigned int off, unsigned int size)
 287 {
 288         int ret;
 289
 290         if (off > SOLO_MP4E_EXT_SIZE(solo_dev))
 291                 return -EINVAL;
 292
 293         /* Single shot */
 294         if (off + size <= SOLO_MP4E_EXT_SIZE(solo_dev)) {
 295                 return solo_p2m_dma_t(solo_dev, 0, dma,
 296                                       SOLO_MP4E_EXT_ADDR(solo_dev) + off, size,
 297                                       0, 0);
 298         }
 299
 300         /* Buffer wrap */
 301         ret = solo_p2m_dma_t(solo_dev, 0, dma,
 302                              SOLO_MP4E_EXT_ADDR(solo_dev) + off,
 303                              SOLO_MP4E_EXT_SIZE(solo_dev) - off, 0, 0);
 304
 305         if (!ret) {
 306                 ret = solo_p2m_dma_t(solo_dev, 0,
 307                              dma + SOLO_MP4E_EXT_SIZE(solo_dev) - off,
 308                              SOLO_MP4E_EXT_ADDR(solo_dev),
 309                              size + off - SOLO_MP4E_EXT_SIZE(solo_dev), 0, 0);
 310         }
 311
 312         return ret;
 313 }
 314
 315 /* Build a descriptor queue out of an SG list and send it to the P2M for
 316  * processing. */
 317 static int solo_send_desc(struct solo_enc_dev *solo_enc, int skip,
 318                           struct sg_table *vbuf, int off, int size,
 319                           unsigned int base, unsigned int base_size)
 320 {
 321         struct solo_dev *solo_dev = solo_enc->solo_dev;
 322         struct scatterlist *sg;
 323         int i;
 324         int ret;
 325
 326         if (WARN_ON_ONCE(size > FRAME_BUF_SIZE))
 327                 return -EINVAL;
 328
 329         solo_enc->desc_count = 1;
 330
 331         for_each_sg(vbuf->sgl, sg, vbuf->nents, i) {
 332                 struct solo_p2m_desc *desc;
 333                 dma_addr_t dma;
 334                 int len;
 335                 int left = base_size - off;
 336
 337                 desc = &solo_enc->desc_items[solo_enc->desc_count++];
 338                 dma = sg_dma_address(sg);
 339                 len = sg_dma_len(sg);
 340
 341                 /* We assume this is smaller than the scatter size */
 342                 BUG_ON(skip >= len);
 343                 if (skip) {
 344                         len -= skip;
 345                         dma += skip;
 346                         size -= skip;
 347                         skip = 0;
 348                 }
 349
 350                 len = min(len, size);
 351
 352                 if (len <= left) {
 353                         /* Single descriptor */
 354                         solo_p2m_fill_desc(desc, 0, dma, base + off,
 355                                            len, 0, 0);
 356                 } else {
 357                         /* Buffer wrap */
 358                         /* XXX: Do these as separate DMA requests, to avoid
 359                            timeout errors triggered by awkwardly sized
 360                            descriptors. See
 361                            <https://github.com/bluecherrydvr/solo6x10/issues/8>
 362                          */
 363                         ret = solo_p2m_dma_t(solo_dev, 0, dma, base + off,
 364                                              left, 0, 0);
 365                         if (ret)
 366                                 return ret;
 367
 368                         ret = solo_p2m_dma_t(solo_dev, 0, dma + left, base,
 369                                              len - left, 0, 0);
 370                         if (ret)
 371                                 return ret;
 372
 373                         solo_enc->desc_count--;
 374                 }
 375
 376                 size -= len;
 377                 if (size <= 0)
 378                         break;
 379
 380                 off += len;
 381                 if (off >= base_size)
 382                         off -= base_size;
 383
 384                 /* Because we may use two descriptors per loop */
 385                 if (solo_enc->desc_count >= (solo_enc->desc_nelts - 1)) {
 386                         ret = solo_p2m_dma_desc(solo_dev, solo_enc->desc_items,
 387                                                 solo_enc->desc_dma,
 388                                                 solo_enc->desc_count - 1);
 389                         if (ret)
 390                                 return ret;
 391                         solo_enc->desc_count = 1;
 392                 }
 393         }
 394
 395         if (solo_enc->desc_count <= 1)
 396                 return 0;
 397
 398         return solo_p2m_dma_desc(solo_dev, solo_enc->desc_items,
 399                         solo_enc->desc_dma, solo_enc->desc_count - 1);
 400 }
 401
 402 /* Extract values from VOP header - VE_STATUSxx */
 403 static inline int vop_interlaced(const vop_header *vh)
 404 {
 405         return (__le32_to_cpu((*vh)[0]) >> 30) & 1;
 406 }
 407
 408 static inline u8 vop_channel(const vop_header *vh)
 409 {
 410         return (__le32_to_cpu((*vh)[0]) >> 24) & 0x1F;
 411 }
 412
 413 static inline u8 vop_type(const vop_header *vh)
 414 {
 415         return (__le32_to_cpu((*vh)[0]) >> 22) & 3;
 416 }
 417
 418 static inline u32 vop_mpeg_size(const vop_header *vh)
 419 {
 420         return __le32_to_cpu((*vh)[0]) & 0xFFFFF;
 421 }
 422
 423 static inline u8 vop_hsize(const vop_header *vh)
 424 {
 425         return (__le32_to_cpu((*vh)[1]) >> 8) & 0xFF;
 426 }
 427
 428 static inline u8 vop_vsize(const vop_header *vh)
 429 {
 430         return __le32_to_cpu((*vh)[1]) & 0xFF;
 431 }
 432
 433 static inline u32 vop_mpeg_offset(const vop_header *vh)
 434 {
 435         return __le32_to_cpu((*vh)[2]);
 436 }
 437
 438 static inline u32 vop_jpeg_offset(const vop_header *vh)
 439 {
 440         return __le32_to_cpu((*vh)[3]);
 441 }
 442
 443 static inline u32 vop_jpeg_size(const vop_header *vh)
 444 {
 445         return __le32_to_cpu((*vh)[4]) & 0xFFFFF;
 446 }
 447
 448 static inline u32 vop_sec(const vop_header *vh)
 449 {
 450         return __le32_to_cpu((*vh)[5]);
 451 }
 452
 453 static inline u32 vop_usec(const vop_header *vh)
 454 {
 455         return __le32_to_cpu((*vh)[6]);
 456 }
 457
 458 static int solo_fill_jpeg(struct solo_enc_dev *solo_enc,
 459                           struct vb2_buffer *vb, const vop_header *vh)
 460 {
 461         struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
 462         struct solo_dev *solo_dev = solo_enc->solo_dev;
 463         struct sg_table *sgt = vb2_dma_sg_plane_desc(vb, 0);
 464         int frame_size;
 465
 466         vbuf->flags |= V4L2_BUF_FLAG_KEYFRAME;
 467
 468         if (vb2_plane_size(vb, 0) < vop_jpeg_size(vh) + solo_enc->jpeg_len)
 469                 return -EIO;
 470
 471         frame_size = ALIGN(vop_jpeg_size(vh) + solo_enc->jpeg_len, DMA_ALIGN);
 472         vb2_set_plane_payload(vb, 0, vop_jpeg_size(vh) + solo_enc->jpeg_len);
 473
 474         return solo_send_desc(solo_enc, solo_enc->jpeg_len, sgt,
 475                              vop_jpeg_offset(vh) - SOLO_JPEG_EXT_ADDR(solo_dev),
 476                              frame_size, SOLO_JPEG_EXT_ADDR(solo_dev),
 477                              SOLO_JPEG_EXT_SIZE(solo_dev));
 478 }
 479
 480 static int solo_fill_mpeg(struct solo_enc_dev *solo_enc,
 481                 struct vb2_buffer *vb, const vop_header *vh)
 482 {
 483         struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
 484         struct solo_dev *solo_dev = solo_enc->solo_dev;
 485         struct sg_table *sgt = vb2_dma_sg_plane_desc(vb, 0);
 486         int frame_off, frame_size;
 487         int skip = 0;
 488
 489         if (vb2_plane_size(vb, 0) < vop_mpeg_size(vh))
 490                 return -EIO;
 491
 492         /* If this is a key frame, add extra header */
 493         vbuf->flags &= ~(V4L2_BUF_FLAG_KEYFRAME | V4L2_BUF_FLAG_PFRAME |
 494                 V4L2_BUF_FLAG_BFRAME);
 495         if (!vop_type(vh)) {
 496                 skip = solo_enc->vop_len;
 497                 vbuf->flags |= V4L2_BUF_FLAG_KEYFRAME;
 498                 vb2_set_plane_payload(vb, 0, vop_mpeg_size(vh) +
 499                         solo_enc->vop_len);
 500         } else {
 501                 vbuf->flags |= V4L2_BUF_FLAG_PFRAME;
 502                 vb2_set_plane_payload(vb, 0, vop_mpeg_size(vh));
 503         }
 504
 505         /* Now get the actual mpeg payload */
 506         frame_off = (vop_mpeg_offset(vh) - SOLO_MP4E_EXT_ADDR(solo_dev) +
 507                 sizeof(*vh)) % SOLO_MP4E_EXT_SIZE(solo_dev);
 508         frame_size = ALIGN(vop_mpeg_size(vh) + skip, DMA_ALIGN);
 509
 510         return solo_send_desc(solo_enc, skip, sgt, frame_off, frame_size,
 511                         SOLO_MP4E_EXT_ADDR(solo_dev),
 512                         SOLO_MP4E_EXT_SIZE(solo_dev));
 513 }
 514
 515 static int solo_enc_fillbuf(struct solo_enc_dev *solo_enc,
 516                             struct vb2_buffer *vb, struct solo_enc_buf *enc_buf)
 517 {
 518         struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
 519         const vop_header *vh = enc_buf->vh;
 520         int ret;
 521
 522         switch (solo_enc->fmt) {
 523         case V4L2_PIX_FMT_MPEG4:
 524         case V4L2_PIX_FMT_H264:
 525                 ret = solo_fill_mpeg(solo_enc, vb, vh);
 526                 break;
 527         default: /* V4L2_PIX_FMT_MJPEG */
 528                 ret = solo_fill_jpeg(solo_enc, vb, vh);
 529                 break;
 530         }
 531
 532         if (!ret) {
 533                 vbuf->sequence = solo_enc->sequence++;
 534                 vb->timestamp = ktime_get_ns();
 535
 536                 /* Check for motion flags */
 537                 if (solo_is_motion_on(solo_enc) && enc_buf->motion) {
 538                         struct v4l2_event ev = {
 539                                 .type = V4L2_EVENT_MOTION_DET,
 540                                 .u.motion_det = {
 541                                         .flags
 542                                         = V4L2_EVENT_MD_FL_HAVE_FRAME_SEQ,
 543                                         .frame_sequence = vbuf->sequence,
 544                                         .region_mask = enc_buf->motion ? 1 : 0,
 545                                 },
 546                         };
 547
 548                         v4l2_event_queue(solo_enc->vfd, &ev);
 549                 }
 550         }
 551
 552         vb2_buffer_done(vb, ret ? VB2_BUF_STATE_ERROR : VB2_BUF_STATE_DONE);
 553
 554         return ret;
 555 }
 556
 557 static void solo_enc_handle_one(struct solo_enc_dev *solo_enc,
 558                                 struct solo_enc_buf *enc_buf)
 559 {
 560         struct solo_vb2_buf *vb;
 561         unsigned long flags;
 562
 563         mutex_lock(&solo_enc->lock);
 564         if (solo_enc->type != enc_buf->type)
 565                 goto unlock;
 566
 567         spin_lock_irqsave(&solo_enc->av_lock, flags);
 568         if (list_empty(&solo_enc->vidq_active)) {
 569                 spin_unlock_irqrestore(&solo_enc->av_lock, flags);
 570                 goto unlock;
 571         }
 572         vb = list_first_entry(&solo_enc->vidq_active, struct solo_vb2_buf,
 573                 list);
 574         list_del(&vb->list);
 575         spin_unlock_irqrestore(&solo_enc->av_lock, flags);
 576
 577         solo_enc_fillbuf(solo_enc, &vb->vb.vb2_buf, enc_buf);
 578 unlock:
 579         mutex_unlock(&solo_enc->lock);
 580 }
 581
 582 void solo_enc_v4l2_isr(struct solo_dev *solo_dev)
 583 {
 584         wake_up_interruptible_all(&solo_dev->ring_thread_wait);
 585 }
 586
 587 static void solo_handle_ring(struct solo_dev *solo_dev)
 588 {
 589         for (;;) {
 590                 struct solo_enc_dev *solo_enc;
 591                 struct solo_enc_buf enc_buf;
 592                 u32 mpeg_current, off;
 593                 u8 ch;
 594                 u8 cur_q;
 595
 596                 /* Check if the hardware has any new ones in the queue */
 597                 cur_q = solo_reg_read(solo_dev, SOLO_VE_STATE(11)) & 0xff;
 598                 if (cur_q == solo_dev->enc_idx)
 599                         break;
 600
 601                 mpeg_current = solo_reg_read(solo_dev,
 602                                         SOLO_VE_MPEG4_QUE(solo_dev->enc_idx));
 603                 solo_dev->enc_idx = (solo_dev->enc_idx + 1) % MP4_QS;
 604
 605                 ch = (mpeg_current >> 24) & 0x1f;
 606                 off = mpeg_current & 0x00ffffff;
 607
 608                 if (ch >= SOLO_MAX_CHANNELS) {
 609                         ch -= SOLO_MAX_CHANNELS;
 610                         enc_buf.type = SOLO_ENC_TYPE_EXT;
 611                 } else
 612                         enc_buf.type = SOLO_ENC_TYPE_STD;
 613
 614                 solo_enc = solo_dev->v4l2_enc[ch];
 615                 if (solo_enc == NULL) {
 616                         dev_err(&solo_dev->pdev->dev,
 617                                 "Got spurious packet for channel %d\n", ch);
 618                         continue;
 619                 }
 620
 621                 /* FAIL... */
 622                 if (enc_get_mpeg_dma(solo_dev, solo_dev->vh_dma, off,
 623                                      sizeof(vop_header)))
 624                         continue;
 625
 626                 enc_buf.vh = solo_dev->vh_buf;
 627
 628                 /* Sanity check */
 629                 if (vop_mpeg_offset(enc_buf.vh) !=
 630                         SOLO_MP4E_EXT_ADDR(solo_dev) + off)
 631                         continue;
 632
 633                 if (solo_motion_detected(solo_enc))
 634                         enc_buf.motion = 1;
 635                 else
 636                         enc_buf.motion = 0;
 637
 638                 solo_enc_handle_one(solo_enc, &enc_buf);
 639         }
 640 }
 641
 642 static int solo_ring_thread(void *data)
 643 {
 644         struct solo_dev *solo_dev = data;
 645         DECLARE_WAITQUEUE(wait, current);
 646
 647         set_freezable();
 648         add_wait_queue(&solo_dev->ring_thread_wait, &wait);
 649
 650         for (;;) {
 651                 long timeout = schedule_timeout_interruptible(HZ);
 652
 653                 if (timeout == -ERESTARTSYS || kthread_should_stop())
 654                         break;
 655                 solo_handle_ring(solo_dev);
 656                 try_to_freeze();
 657         }
 658
 659         remove_wait_queue(&solo_dev->ring_thread_wait, &wait);
 660
 661         return 0;
 662 }
 663
 664 static int solo_enc_queue_setup(struct vb2_queue *q,
 665                                 unsigned int *num_buffers,
 666                                 unsigned int *num_planes, unsigned int sizes[],
 667                                 struct device *alloc_devs[])
 668 {
 669         sizes[0] = FRAME_BUF_SIZE;
 670         *num_planes = 1;
 671
 672         if (*num_buffers < MIN_VID_BUFFERS)
 673                 *num_buffers = MIN_VID_BUFFERS;
 674
 675         return 0;
 676 }
 677
 678 static void solo_enc_buf_queue(struct vb2_buffer *vb)
 679 {
 680         struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
 681         struct vb2_queue *vq = vb->vb2_queue;
 682         struct solo_enc_dev *solo_enc = vb2_get_drv_priv(vq);
 683         struct solo_vb2_buf *solo_vb =
 684                 container_of(vbuf, struct solo_vb2_buf, vb);
 685
 686         spin_lock(&solo_enc->av_lock);
 687         list_add_tail(&solo_vb->list, &solo_enc->vidq_active);
 688         spin_unlock(&solo_enc->av_lock);
 689 }
 690
 691 static int solo_ring_start(struct solo_dev *solo_dev)
 692 {
 693         solo_dev->ring_thread = kthread_run(solo_ring_thread, solo_dev,
 694                                             SOLO6X10_NAME "_ring");
 695         if (IS_ERR(solo_dev->ring_thread)) {
 696                 int err = PTR_ERR(solo_dev->ring_thread);
 697
 698                 solo_dev->ring_thread = NULL;
 699                 return err;
 700         }
 701
 702         solo_irq_on(solo_dev, SOLO_IRQ_ENCODER);
 703
 704         return 0;
 705 }
 706
 707 static void solo_ring_stop(struct solo_dev *solo_dev)
 708 {
 709         if (solo_dev->ring_thread) {
 710                 kthread_stop(solo_dev->ring_thread);
 711                 solo_dev->ring_thread = NULL;
 712         }
 713
 714         solo_irq_off(solo_dev, SOLO_IRQ_ENCODER);
 715 }
 716
 717 static int solo_enc_start_streaming(struct vb2_queue *q, unsigned int count)
 718 {
 719         struct solo_enc_dev *solo_enc = vb2_get_drv_priv(q);
 720
 721         return solo_enc_on(solo_enc);
 722 }
 723
 724 static void solo_enc_stop_streaming(struct vb2_queue *q)
 725 {
 726         struct solo_enc_dev *solo_enc = vb2_get_drv_priv(q);
 727         unsigned long flags;
 728
 729         spin_lock_irqsave(&solo_enc->av_lock, flags);
 730         solo_enc_off(solo_enc);
 731         while (!list_empty(&solo_enc->vidq_active)) {
 732                 struct solo_vb2_buf *buf = list_entry(
 733                                 solo_enc->vidq_active.next,
 734                                 struct solo_vb2_buf, list);
 735
 736                 list_del(&buf->list);
 737                 vb2_buffer_done(&buf->vb.vb2_buf, VB2_BUF_STATE_ERROR);
 738         }
 739         spin_unlock_irqrestore(&solo_enc->av_lock, flags);
 740 }
 741
 742 static void solo_enc_buf_finish(struct vb2_buffer *vb)
 743 {
 744         struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
 745         struct solo_enc_dev *solo_enc = vb2_get_drv_priv(vb->vb2_queue);
 746         struct sg_table *sgt = vb2_dma_sg_plane_desc(vb, 0);
 747
 748         switch (solo_enc->fmt) {
 749         case V4L2_PIX_FMT_MPEG4:
 750         case V4L2_PIX_FMT_H264:
 751                 if (vbuf->flags & V4L2_BUF_FLAG_KEYFRAME)
 752                         sg_copy_from_buffer(sgt->sgl, sgt->nents,
 753                                         solo_enc->vop, solo_enc->vop_len);
 754                 break;
 755         default: /* V4L2_PIX_FMT_MJPEG */
 756                 sg_copy_from_buffer(sgt->sgl, sgt->nents,
 757                                 solo_enc->jpeg_header, solo_enc->jpeg_len);
 758                 break;
 759         }
 760 }
 761
 762 static const struct vb2_ops solo_enc_video_qops = {
 763         .queue_setup    = solo_enc_queue_setup,
 764         .buf_queue      = solo_enc_buf_queue,
 765         .buf_finish     = solo_enc_buf_finish,
 766         .start_streaming = solo_enc_start_streaming,
 767         .stop_streaming = solo_enc_stop_streaming,
 768         .wait_prepare   = vb2_ops_wait_prepare,
 769         .wait_finish    = vb2_ops_wait_finish,
 770 };
 771
 772 static int solo_enc_querycap(struct file *file, void  *priv,
 773                              struct v4l2_capability *cap)
 774 {
 775         struct solo_enc_dev *solo_enc = video_drvdata(file);
 776         struct solo_dev *solo_dev = solo_enc->solo_dev;
 777
 778         strscpy(cap->driver, SOLO6X10_NAME, sizeof(cap->driver));
 779         snprintf(cap->card, sizeof(cap->card), "Softlogic 6x10 Enc %d",
 780                  solo_enc->ch);
 781         snprintf(cap->bus_info, sizeof(cap->bus_info), "PCI:%s",
 782                  pci_name(solo_dev->pdev));
 783         cap->device_caps = V4L2_CAP_VIDEO_CAPTURE |
 784                         V4L2_CAP_READWRITE | V4L2_CAP_STREAMING;
 785         cap->capabilities = cap->device_caps | V4L2_CAP_DEVICE_CAPS;
 786         return 0;
 787 }
 788
 789 static int solo_enc_enum_input(struct file *file, void *priv,
 790                                struct v4l2_input *input)
 791 {
 792         struct solo_enc_dev *solo_enc = video_drvdata(file);
 793         struct solo_dev *solo_dev = solo_enc->solo_dev;
 794
 795         if (input->index)
 796                 return -EINVAL;
 797
 798         snprintf(input->name, sizeof(input->name), "Encoder %d",
 799                  solo_enc->ch + 1);
 800         input->type = V4L2_INPUT_TYPE_CAMERA;
 801         input->std = solo_enc->vfd->tvnorms;
 802
 803         if (!tw28_get_video_status(solo_dev, solo_enc->ch))
 804                 input->status = V4L2_IN_ST_NO_SIGNAL;
 805
 806         return 0;
 807 }
 808
 809 static int solo_enc_set_input(struct file *file, void *priv,
 810                               unsigned int index)
 811 {
 812         if (index)
 813                 return -EINVAL;
 814
 815         return 0;
 816 }
 817
 818 static int solo_enc_get_input(struct file *file, void *priv,
 819                               unsigned int *index)
 820 {
 821         *index = 0;
 822
 823         return 0;
 824 }
 825
 826 static int solo_enc_enum_fmt_cap(struct file *file, void *priv,
 827                                  struct v4l2_fmtdesc *f)
 828 {
 829         struct solo_enc_dev *solo_enc = video_drvdata(file);
 830         int dev_type = solo_enc->solo_dev->type;
 831
 832         switch (f->index) {
 833         case 0:
 834                 switch (dev_type) {
 835                 case SOLO_DEV_6010:
 836                         f->pixelformat = V4L2_PIX_FMT_MPEG4;
 837                         strscpy(f->description, "MPEG-4 part 2",
 838                                 sizeof(f->description));
 839                         break;
 840                 case SOLO_DEV_6110:
 841                         f->pixelformat = V4L2_PIX_FMT_H264;
 842                         strscpy(f->description, "H.264", sizeof(f->description));
 843                         break;
 844                 }
 845                 break;
 846         case 1:
 847                 f->pixelformat = V4L2_PIX_FMT_MJPEG;
 848                 strscpy(f->description, "MJPEG", sizeof(f->description));
 849                 break;
 850         default:
 851                 return -EINVAL;
 852         }
 853
 854         f->flags = V4L2_FMT_FLAG_COMPRESSED;
 855
 856         return 0;
 857 }
 858
 859 static inline int solo_valid_pixfmt(u32 pixfmt, int dev_type)
 860 {
 861         return (pixfmt == V4L2_PIX_FMT_H264 && dev_type == SOLO_DEV_6110)
 862                 || (pixfmt == V4L2_PIX_FMT_MPEG4 && dev_type == SOLO_DEV_6010)
 863                 || pixfmt == V4L2_PIX_FMT_MJPEG ? 0 : -EINVAL;
 864 }
 865
 866 static int solo_enc_try_fmt_cap(struct file *file, void *priv,
 867                             struct v4l2_format *f)
 868 {
 869         struct solo_enc_dev *solo_enc = video_drvdata(file);
 870         struct solo_dev *solo_dev = solo_enc->solo_dev;
 871         struct v4l2_pix_format *pix = &f->fmt.pix;
 872
 873         if (solo_valid_pixfmt(pix->pixelformat, solo_dev->type))
 874                 return -EINVAL;
 875
 876         if (pix->width < solo_dev->video_hsize ||
 877             pix->height < solo_dev->video_vsize << 1) {
 878                 /* Default to CIF 1/2 size */
 879                 pix->width = solo_dev->video_hsize >> 1;
 880                 pix->height = solo_dev->video_vsize;
 881         } else {
 882                 /* Full frame */
 883                 pix->width = solo_dev->video_hsize;
 884                 pix->height = solo_dev->video_vsize << 1;
 885         }
 886
 887         switch (pix->field) {
 888         case V4L2_FIELD_NONE:
 889         case V4L2_FIELD_INTERLACED:
 890                 break;
 891         case V4L2_FIELD_ANY:
 892         default:
 893                 pix->field = V4L2_FIELD_INTERLACED;
 894                 break;
 895         }
 896
 897         /* Just set these */
 898         pix->colorspace = V4L2_COLORSPACE_SMPTE170M;
 899         pix->sizeimage = FRAME_BUF_SIZE;
 900         pix->bytesperline = 0;
 901         pix->priv = 0;
 902
 903         return 0;
 904 }
 905
 906 static int solo_enc_set_fmt_cap(struct file *file, void *priv,
 907                                 struct v4l2_format *f)
 908 {
 909         struct solo_enc_dev *solo_enc = video_drvdata(file);
 910         struct solo_dev *solo_dev = solo_enc->solo_dev;
 911         struct v4l2_pix_format *pix = &f->fmt.pix;
 912         int ret;
 913
 914         if (vb2_is_busy(&solo_enc->vidq))
 915                 return -EBUSY;
 916
 917         ret = solo_enc_try_fmt_cap(file, priv, f);
 918         if (ret)
 919                 return ret;
 920
 921         if (pix->width == solo_dev->video_hsize)
 922                 solo_enc->mode = SOLO_ENC_MODE_D1;
 923         else
 924                 solo_enc->mode = SOLO_ENC_MODE_CIF;
 925
 926         /* This does not change the encoder at all */
 927         solo_enc->fmt = pix->pixelformat;
 928
 929         /*
 930          * More information is needed about these 'extended' types. As far
 931          * as I can tell these are basically additional video streams with
 932          * different MPEG encoding attributes that can run in parallel with
 933          * the main stream. If so, then this should be implemented as a
 934          * second video node. Abusing priv like this is certainly not the
 935          * right approach.
 936         if (pix->priv)
 937                 solo_enc->type = SOLO_ENC_TYPE_EXT;
 938          */
 939         solo_update_mode(solo_enc);
 940         return 0;
 941 }
 942
 943 static int solo_enc_get_fmt_cap(struct file *file, void *priv,
 944                                 struct v4l2_format *f)
 945 {
 946         struct solo_enc_dev *solo_enc = video_drvdata(file);
 947         struct v4l2_pix_format *pix = &f->fmt.pix;
 948
 949         pix->width = solo_enc->width;
 950         pix->height = solo_enc->height;
 951         pix->pixelformat = solo_enc->fmt;
 952         pix->field = solo_enc->interlaced ? V4L2_FIELD_INTERLACED :
 953                      V4L2_FIELD_NONE;
 954         pix->sizeimage = FRAME_BUF_SIZE;
 955         pix->colorspace = V4L2_COLORSPACE_SMPTE170M;
 956         pix->priv = 0;
 957
 958         return 0;
 959 }
 960
 961 static int solo_enc_g_std(struct file *file, void *priv, v4l2_std_id *i)
 962 {
 963         struct solo_enc_dev *solo_enc = video_drvdata(file);
 964         struct solo_dev *solo_dev = solo_enc->solo_dev;
 965
 966         if (solo_dev->video_type == SOLO_VO_FMT_TYPE_NTSC)
 967                 *i = V4L2_STD_NTSC_M;
 968         else
 969                 *i = V4L2_STD_PAL;
 970         return 0;
 971 }
 972
 973 static int solo_enc_s_std(struct file *file, void *priv, v4l2_std_id std)
 974 {
 975         struct solo_enc_dev *solo_enc = video_drvdata(file);
 976
 977         return solo_set_video_type(solo_enc->solo_dev, std & V4L2_STD_625_50);
 978 }
 979
 980 static int solo_enum_framesizes(struct file *file, void *priv,
 981                                 struct v4l2_frmsizeenum *fsize)
 982 {
 983         struct solo_enc_dev *solo_enc = video_drvdata(file);
 984         struct solo_dev *solo_dev = solo_enc->solo_dev;
 985
 986         if (solo_valid_pixfmt(fsize->pixel_format, solo_dev->type))
 987                 return -EINVAL;
 988
 989         switch (fsize->index) {
 990         case 0:
 991                 fsize->discrete.width = solo_dev->video_hsize >> 1;
 992                 fsize->discrete.height = solo_dev->video_vsize;
 993                 break;
 994         case 1:
 995                 fsize->discrete.width = solo_dev->video_hsize;
 996                 fsize->discrete.height = solo_dev->video_vsize << 1;
 997                 break;
 998         default:
 999                 return -EINVAL;
1000         }
1001
1002         fsize->type = V4L2_FRMSIZE_TYPE_DISCRETE;
1003
1004         return 0;
1005 }
1006
1007 static int solo_enum_frameintervals(struct file *file, void *priv,
1008                                     struct v4l2_frmivalenum *fintv)
1009 {
1010         struct solo_enc_dev *solo_enc = video_drvdata(file);
1011         struct solo_dev *solo_dev = solo_enc->solo_dev;
1012
1013         if (solo_valid_pixfmt(fintv->pixel_format, solo_dev->type))
1014                 return -EINVAL;
1015         if (fintv->index)
1016                 return -EINVAL;
1017         if ((fintv->width != solo_dev->video_hsize >> 1 ||
1018              fintv->height != solo_dev->video_vsize) &&
1019             (fintv->width != solo_dev->video_hsize ||
1020              fintv->height != solo_dev->video_vsize << 1))
1021                 return -EINVAL;
1022
1023         fintv->type = V4L2_FRMIVAL_TYPE_STEPWISE;
1024
1025         fintv->stepwise.min.numerator = 1;
1026         fintv->stepwise.min.denominator = solo_dev->fps;
1027
1028         fintv->stepwise.max.numerator = 15;
1029         fintv->stepwise.max.denominator = solo_dev->fps;
1030
1031         fintv->stepwise.step.numerator = 1;
1032         fintv->stepwise.step.denominator = solo_dev->fps;
1033
1034         return 0;
1035 }
1036
1037 static int solo_g_parm(struct file *file, void *priv,
1038                        struct v4l2_streamparm *sp)
1039 {
1040         struct solo_enc_dev *solo_enc = video_drvdata(file);
1041         struct v4l2_captureparm *cp = &sp->parm.capture;
1042
1043         cp->capability = V4L2_CAP_TIMEPERFRAME;
1044         cp->timeperframe.numerator = solo_enc->interval;
1045         cp->timeperframe.denominator = solo_enc->solo_dev->fps;
1046         cp->capturemode = 0;
1047         /* XXX: Shouldn't we be able to get/set this from videobuf? */
1048         cp->readbuffers = 2;
1049
1050         return 0;
1051 }
1052
1053 static inline int calc_interval(u8 fps, u32 n, u32 d)
1054 {
1055         if (!n || !d)
1056                 return 1;
1057         if (d == fps)
1058                 return n;
1059         n *= fps;
1060         return min(15U, n / d + (n % d >= (fps >> 1)));
1061 }
1062
1063 static int solo_s_parm(struct file *file, void *priv,
1064                        struct v4l2_streamparm *sp)
1065 {
1066         struct solo_enc_dev *solo_enc = video_drvdata(file);
1067         struct v4l2_fract *t = &sp->parm.capture.timeperframe;
1068         u8 fps = solo_enc->solo_dev->fps;
1069
1070         if (vb2_is_streaming(&solo_enc->vidq))
1071                 return -EBUSY;
1072
1073         solo_enc->interval = calc_interval(fps, t->numerator, t->denominator);
1074         solo_update_mode(solo_enc);
1075         return solo_g_parm(file, priv, sp);
1076 }
1077
1078 static int solo_s_ctrl(struct v4l2_ctrl *ctrl)
1079 {
1080         struct solo_enc_dev *solo_enc =
1081                 container_of(ctrl->handler, struct solo_enc_dev, hdl);
1082         struct solo_dev *solo_dev = solo_enc->solo_dev;
1083         int err;
1084
1085         switch (ctrl->id) {
1086         case V4L2_CID_BRIGHTNESS:
1087         case V4L2_CID_CONTRAST:
1088         case V4L2_CID_SATURATION:
1089         case V4L2_CID_HUE:
1090         case V4L2_CID_SHARPNESS:
1091                 return tw28_set_ctrl_val(solo_dev, ctrl->id, solo_enc->ch,
1092                                          ctrl->val);
1093         case V4L2_CID_MPEG_VIDEO_GOP_SIZE:
1094                 solo_enc->gop = ctrl->val;
1095                 solo_reg_write(solo_dev, SOLO_VE_CH_GOP(solo_enc->ch), solo_enc->gop);
1096                 solo_reg_write(solo_dev, SOLO_VE_CH_GOP_E(solo_enc->ch), solo_enc->gop);
1097                 return 0;
1098         case V4L2_CID_MPEG_VIDEO_H264_MIN_QP:
1099                 solo_enc->qp = ctrl->val;
1100                 solo_reg_write(solo_dev, SOLO_VE_CH_QP(solo_enc->ch), solo_enc->qp);
1101                 solo_reg_write(solo_dev, SOLO_VE_CH_QP_E(solo_enc->ch), solo_enc->qp);
1102                 return 0;
1103         case V4L2_CID_DETECT_MD_GLOBAL_THRESHOLD:
1104                 solo_enc->motion_thresh = ctrl->val << 8;
1105                 if (!solo_enc->motion_global || !solo_enc->motion_enabled)
1106                         return 0;
1107                 return solo_set_motion_threshold(solo_dev, solo_enc->ch,
1108                                 solo_enc->motion_thresh);
1109         case V4L2_CID_DETECT_MD_MODE:
1110                 solo_enc->motion_global = ctrl->val == V4L2_DETECT_MD_MODE_GLOBAL;
1111                 solo_enc->motion_enabled = ctrl->val > V4L2_DETECT_MD_MODE_DISABLED;
1112                 if (ctrl->val) {
1113                         if (solo_enc->motion_global)
1114                                 err = solo_set_motion_threshold(solo_dev, solo_enc->ch,
1115                                         solo_enc->motion_thresh);
1116                         else
1117                                 err = solo_set_motion_block(solo_dev, solo_enc->ch,
1118                                         solo_enc->md_thresholds->p_cur.p_u16);
1119                         if (err)
1120                                 return err;
1121                 }
1122                 solo_motion_toggle(solo_enc, ctrl->val);
1123                 return 0;
1124         case V4L2_CID_DETECT_MD_THRESHOLD_GRID:
1125                 if (solo_enc->motion_enabled && !solo_enc->motion_global)
1126                         return solo_set_motion_block(solo_dev, solo_enc->ch,
1127                                         solo_enc->md_thresholds->p_new.p_u16);
1128                 break;
1129         case V4L2_CID_OSD_TEXT:
1130                 strscpy(solo_enc->osd_text, ctrl->p_new.p_char,
1131                         sizeof(solo_enc->osd_text));
1132                 return solo_osd_print(solo_enc);
1133         default:
1134                 return -EINVAL;
1135         }
1136
1137         return 0;
1138 }
1139
1140 static int solo_subscribe_event(struct v4l2_fh *fh,
1141                                 const struct v4l2_event_subscription *sub)
1142 {
1143
1144         switch (sub->type) {
1145         case V4L2_EVENT_MOTION_DET:
1146                 /* Allow for up to 30 events (1 second for NTSC) to be
1147                  * stored. */
1148                 return v4l2_event_subscribe(fh, sub, 30, NULL);
1149         default:
1150                 return v4l2_ctrl_subscribe_event(fh, sub);
1151         }
1152 }
1153
1154 static const struct v4l2_file_operations solo_enc_fops = {
1155         .owner                  = THIS_MODULE,
1156         .open                   = v4l2_fh_open,
1157         .release                = vb2_fop_release,
1158         .read                   = vb2_fop_read,
1159         .poll                   = vb2_fop_poll,
1160         .mmap                   = vb2_fop_mmap,
1161         .unlocked_ioctl         = video_ioctl2,
1162 };
1163
1164 static const struct v4l2_ioctl_ops solo_enc_ioctl_ops = {
1165         .vidioc_querycap                = solo_enc_querycap,
1166         .vidioc_s_std                   = solo_enc_s_std,
1167         .vidioc_g_std                   = solo_enc_g_std,
1168         /* Input callbacks */
1169         .vidioc_enum_input              = solo_enc_enum_input,
1170         .vidioc_s_input                 = solo_enc_set_input,
1171         .vidioc_g_input                 = solo_enc_get_input,
1172         /* Video capture format callbacks */
1173         .vidioc_enum_fmt_vid_cap        = solo_enc_enum_fmt_cap,
1174         .vidioc_try_fmt_vid_cap         = solo_enc_try_fmt_cap,
1175         .vidioc_s_fmt_vid_cap           = solo_enc_set_fmt_cap,
1176         .vidioc_g_fmt_vid_cap           = solo_enc_get_fmt_cap,
1177         /* Streaming I/O */
1178         .vidioc_reqbufs                 = vb2_ioctl_reqbufs,
1179         .vidioc_querybuf                = vb2_ioctl_querybuf,
1180         .vidioc_qbuf                    = vb2_ioctl_qbuf,
1181         .vidioc_dqbuf                   = vb2_ioctl_dqbuf,
1182         .vidioc_streamon                = vb2_ioctl_streamon,
1183         .vidioc_streamoff               = vb2_ioctl_streamoff,
1184         /* Frame size and interval */
1185         .vidioc_enum_framesizes         = solo_enum_framesizes,
1186         .vidioc_enum_frameintervals     = solo_enum_frameintervals,
1187         /* Video capture parameters */
1188         .vidioc_s_parm                  = solo_s_parm,
1189         .vidioc_g_parm                  = solo_g_parm,
1190         /* Logging and events */
1191         .vidioc_log_status              = v4l2_ctrl_log_status,
1192         .vidioc_subscribe_event         = solo_subscribe_event,
1193         .vidioc_unsubscribe_event       = v4l2_event_unsubscribe,
1194 };
1195
1196 static const struct video_device solo_enc_template = {
1197         .name                   = SOLO6X10_NAME,
1198         .fops                   = &solo_enc_fops,
1199         .ioctl_ops              = &solo_enc_ioctl_ops,
1200         .minor                  = -1,
1201         .release                = video_device_release,
1202         .tvnorms                = V4L2_STD_NTSC_M | V4L2_STD_PAL,
1203 };
1204
1205 static const struct v4l2_ctrl_ops solo_ctrl_ops = {
1206         .s_ctrl = solo_s_ctrl,
1207 };
1208
1209 static const struct v4l2_ctrl_config solo_osd_text_ctrl = {
1210         .ops = &solo_ctrl_ops,
1211         .id = V4L2_CID_OSD_TEXT,
1212         .name = "OSD Text",
1213         .type = V4L2_CTRL_TYPE_STRING,
1214         .max = OSD_TEXT_MAX,
1215         .step = 1,
1216 };
1217
1218 /* Motion Detection Threshold matrix */
1219 static const struct v4l2_ctrl_config solo_md_thresholds = {
1220         .ops = &solo_ctrl_ops,
1221         .id = V4L2_CID_DETECT_MD_THRESHOLD_GRID,
1222         .dims = { SOLO_MOTION_SZ, SOLO_MOTION_SZ },
1223         .def = SOLO_DEF_MOT_THRESH,
1224         .max = 65535,
1225         .step = 1,
1226 };
1227
1228 static struct solo_enc_dev *solo_enc_alloc(struct solo_dev *solo_dev,
1229                                            u8 ch, unsigned nr)
1230 {
1231         struct solo_enc_dev *solo_enc;
1232         struct v4l2_ctrl_handler *hdl;
1233         int ret;
1234
1235         solo_enc = kzalloc(sizeof(*solo_enc), GFP_KERNEL);
1236         if (!solo_enc)
1237                 return ERR_PTR(-ENOMEM);
1238
1239         hdl = &solo_enc->hdl;
1240         v4l2_ctrl_handler_init(hdl, 10);
1241         v4l2_ctrl_new_std(hdl, &solo_ctrl_ops,
1242                         V4L2_CID_BRIGHTNESS, 0, 255, 1, 128);
1243         v4l2_ctrl_new_std(hdl, &solo_ctrl_ops,
1244                         V4L2_CID_CONTRAST, 0, 255, 1, 128);
1245         v4l2_ctrl_new_std(hdl, &solo_ctrl_ops,
1246                         V4L2_CID_SATURATION, 0, 255, 1, 128);
1247         v4l2_ctrl_new_std(hdl, &solo_ctrl_ops,
1248                         V4L2_CID_HUE, 0, 255, 1, 128);
1249         if (tw28_has_sharpness(solo_dev, ch))
1250                 v4l2_ctrl_new_std(hdl, &solo_ctrl_ops,
1251                         V4L2_CID_SHARPNESS, 0, 15, 1, 0);
1252         v4l2_ctrl_new_std(hdl, &solo_ctrl_ops,
1253                         V4L2_CID_MPEG_VIDEO_GOP_SIZE, 1, 255, 1, solo_dev->fps);
1254         v4l2_ctrl_new_std(hdl, &solo_ctrl_ops,
1255                         V4L2_CID_MPEG_VIDEO_H264_MIN_QP, 0, 31, 1, SOLO_DEFAULT_QP);
1256         v4l2_ctrl_new_std_menu(hdl, &solo_ctrl_ops,
1257                         V4L2_CID_DETECT_MD_MODE,
1258                         V4L2_DETECT_MD_MODE_THRESHOLD_GRID, 0,
1259                         V4L2_DETECT_MD_MODE_DISABLED);
1260         v4l2_ctrl_new_std(hdl, &solo_ctrl_ops,
1261                         V4L2_CID_DETECT_MD_GLOBAL_THRESHOLD, 0, 0xff, 1,
1262                         SOLO_DEF_MOT_THRESH >> 8);
1263         v4l2_ctrl_new_custom(hdl, &solo_osd_text_ctrl, NULL);
1264         solo_enc->md_thresholds =
1265                 v4l2_ctrl_new_custom(hdl, &solo_md_thresholds, NULL);
1266         if (hdl->error) {
1267                 ret = hdl->error;
1268                 goto hdl_free;
1269         }
1270
1271         solo_enc->solo_dev = solo_dev;
1272         solo_enc->ch = ch;
1273         mutex_init(&solo_enc->lock);
1274         spin_lock_init(&solo_enc->av_lock);
1275         INIT_LIST_HEAD(&solo_enc->vidq_active);
1276         solo_enc->fmt = (solo_dev->type == SOLO_DEV_6010) ?
1277                 V4L2_PIX_FMT_MPEG4 : V4L2_PIX_FMT_H264;
1278         solo_enc->type = SOLO_ENC_TYPE_STD;
1279
1280         solo_enc->qp = SOLO_DEFAULT_QP;
1281         solo_enc->gop = solo_dev->fps;
1282         solo_enc->interval = 1;
1283         solo_enc->mode = SOLO_ENC_MODE_CIF;
1284         solo_enc->motion_global = true;
1285         solo_enc->motion_thresh = SOLO_DEF_MOT_THRESH;
1286         solo_enc->vidq.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
1287         solo_enc->vidq.io_modes = VB2_MMAP | VB2_USERPTR | VB2_READ;
1288         solo_enc->vidq.ops = &solo_enc_video_qops;
1289         solo_enc->vidq.mem_ops = &vb2_dma_sg_memops;
1290         solo_enc->vidq.drv_priv = solo_enc;
1291         solo_enc->vidq.gfp_flags = __GFP_DMA32 | __GFP_KSWAPD_RECLAIM;
1292         solo_enc->vidq.timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;
1293         solo_enc->vidq.buf_struct_size = sizeof(struct solo_vb2_buf);
1294         solo_enc->vidq.lock = &solo_enc->lock;
1295         solo_enc->vidq.dev = &solo_dev->pdev->dev;
1296         ret = vb2_queue_init(&solo_enc->vidq);
1297         if (ret)
1298                 goto hdl_free;
1299         solo_update_mode(solo_enc);
1300
1301         spin_lock_init(&solo_enc->motion_lock);
1302
1303         /* Initialize this per encoder */
1304         solo_enc->jpeg_len = sizeof(jpeg_header);
1305         memcpy(solo_enc->jpeg_header, jpeg_header, solo_enc->jpeg_len);
1306
1307         solo_enc->desc_nelts = 32;
1308         solo_enc->desc_items = pci_alloc_consistent(solo_dev->pdev,
1309                                       sizeof(struct solo_p2m_desc) *
1310                                       solo_enc->desc_nelts,
1311                                       &solo_enc->desc_dma);
1312         ret = -ENOMEM;
1313         if (solo_enc->desc_items == NULL)
1314                 goto hdl_free;
1315
1316         solo_enc->vfd = video_device_alloc();
1317         if (!solo_enc->vfd)
1318                 goto pci_free;
1319
1320         *solo_enc->vfd = solo_enc_template;
1321         solo_enc->vfd->v4l2_dev = &solo_dev->v4l2_dev;
1322         solo_enc->vfd->ctrl_handler = hdl;
1323         solo_enc->vfd->queue = &solo_enc->vidq;
1324         solo_enc->vfd->lock = &solo_enc->lock;
1325         video_set_drvdata(solo_enc->vfd, solo_enc);
1326         ret = video_register_device(solo_enc->vfd, VFL_TYPE_GRABBER, nr);
1327         if (ret < 0)
1328                 goto vdev_release;
1329
1330         snprintf(solo_enc->vfd->name, sizeof(solo_enc->vfd->name),
1331                  "%s-enc (%i/%i)", SOLO6X10_NAME, solo_dev->vfd->num,
1332                  solo_enc->vfd->num);
1333
1334         return solo_enc;
1335
1336 vdev_release:
1337         video_device_release(solo_enc->vfd);
1338 pci_free:
1339         pci_free_consistent(solo_enc->solo_dev->pdev,
1340                         sizeof(struct solo_p2m_desc) * solo_enc->desc_nelts,
1341                         solo_enc->desc_items, solo_enc->desc_dma);
1342 hdl_free:
1343         v4l2_ctrl_handler_free(hdl);
1344         kfree(solo_enc);
1345         return ERR_PTR(ret);
1346 }
1347
1348 static void solo_enc_free(struct solo_enc_dev *solo_enc)
1349 {
1350         if (solo_enc == NULL)
1351                 return;
1352
1353         pci_free_consistent(solo_enc->solo_dev->pdev,
1354                         sizeof(struct solo_p2m_desc) * solo_enc->desc_nelts,
1355                         solo_enc->desc_items, solo_enc->desc_dma);
1356         video_unregister_device(solo_enc->vfd);
1357         v4l2_ctrl_handler_free(&solo_enc->hdl);
1358         kfree(solo_enc);
1359 }
1360
1361 int solo_enc_v4l2_init(struct solo_dev *solo_dev, unsigned nr)
1362 {
1363         int i;
1364
1365         init_waitqueue_head(&solo_dev->ring_thread_wait);
1366
1367         solo_dev->vh_size = sizeof(vop_header);
1368         solo_dev->vh_buf = pci_alloc_consistent(solo_dev->pdev,
1369                                                 solo_dev->vh_size,
1370                                                 &solo_dev->vh_dma);
1371         if (solo_dev->vh_buf == NULL)
1372                 return -ENOMEM;
1373
1374         for (i = 0; i < solo_dev->nr_chans; i++) {
1375                 solo_dev->v4l2_enc[i] = solo_enc_alloc(solo_dev, i, nr);
1376                 if (IS_ERR(solo_dev->v4l2_enc[i]))
1377                         break;
1378         }
1379
1380         if (i != solo_dev->nr_chans) {
1381                 int ret = PTR_ERR(solo_dev->v4l2_enc[i]);
1382
1383                 while (i--)
1384                         solo_enc_free(solo_dev->v4l2_enc[i]);
1385                 pci_free_consistent(solo_dev->pdev, solo_dev->vh_size,
1386                                     solo_dev->vh_buf, solo_dev->vh_dma);
1387                 solo_dev->vh_buf = NULL;
1388                 return ret;
1389         }
1390
1391         if (solo_dev->type == SOLO_DEV_6010)
1392                 solo_dev->enc_bw_remain = solo_dev->fps * 4 * 4;
1393         else
1394                 solo_dev->enc_bw_remain = solo_dev->fps * 4 * 5;
1395
1396         dev_info(&solo_dev->pdev->dev, "Encoders as /dev/video%d-%d\n",
1397                  solo_dev->v4l2_enc[0]->vfd->num,
1398                  solo_dev->v4l2_enc[solo_dev->nr_chans - 1]->vfd->num);
1399
1400         return solo_ring_start(solo_dev);
1401 }
1402
1403 void solo_enc_v4l2_exit(struct solo_dev *solo_dev)
1404 {
1405         int i;
1406
1407         solo_ring_stop(solo_dev);
1408
1409         for (i = 0; i < solo_dev->nr_chans; i++)
1410                 solo_enc_free(solo_dev->v4l2_enc[i]);
1411
1412         if (solo_dev->vh_buf)
1413                 pci_free_consistent(solo_dev->pdev, solo_dev->vh_size,
1414                             solo_dev->vh_buf, solo_dev->vh_dma);
1415 }