linux/drivers/staging/media/solo6x10/solo6x10-v4l2-enc.c
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   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 * You should have received a copy of the GNU General Public License
  21 * along with this program; if not, write to the Free Software
  22 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  23 */
  24
  25#include <linux/kernel.h>
  26#include <linux/module.h>
  27#include <linux/kthread.h>
  28#include <linux/freezer.h>
  29
  30#include <media/v4l2-ioctl.h>
  31#include <media/v4l2-common.h>
  32#include <media/v4l2-event.h>
  33#include <media/videobuf2-dma-sg.h>
  34
  35#include "solo6x10.h"
  36#include "solo6x10-tw28.h"
  37#include "solo6x10-jpeg.h"
  38
  39#define MIN_VID_BUFFERS         2
  40#define FRAME_BUF_SIZE          (196 * 1024)
  41#define MP4_QS                  16
  42#define DMA_ALIGN               4096
  43
  44/* 6010 M4V */
  45static unsigned char vop_6010_ntsc_d1[] = {
  46        0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x01, 0x20,
  47        0x02, 0x48, 0x1d, 0xc0, 0x00, 0x40, 0x00, 0x40,
  48        0x00, 0x40, 0x00, 0x80, 0x00, 0x97, 0x53, 0x04,
  49        0x1f, 0x4c, 0x58, 0x10, 0xf0, 0x71, 0x18, 0x3f,
  50};
  51
  52static unsigned char vop_6010_ntsc_cif[] = {
  53        0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x01, 0x20,
  54        0x02, 0x48, 0x1d, 0xc0, 0x00, 0x40, 0x00, 0x40,
  55        0x00, 0x40, 0x00, 0x80, 0x00, 0x97, 0x53, 0x04,
  56        0x1f, 0x4c, 0x2c, 0x10, 0x78, 0x51, 0x18, 0x3f,
  57};
  58
  59static unsigned char vop_6010_pal_d1[] = {
  60        0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x01, 0x20,
  61        0x02, 0x48, 0x15, 0xc0, 0x00, 0x40, 0x00, 0x40,
  62        0x00, 0x40, 0x00, 0x80, 0x00, 0x97, 0x53, 0x04,
  63        0x1f, 0x4c, 0x58, 0x11, 0x20, 0x71, 0x18, 0x3f,
  64};
  65
  66static unsigned char vop_6010_pal_cif[] = {
  67        0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x01, 0x20,
  68        0x02, 0x48, 0x15, 0xc0, 0x00, 0x40, 0x00, 0x40,
  69        0x00, 0x40, 0x00, 0x80, 0x00, 0x97, 0x53, 0x04,
  70        0x1f, 0x4c, 0x2c, 0x10, 0x90, 0x51, 0x18, 0x3f,
  71};
  72
  73/* 6110 h.264 */
  74static unsigned char vop_6110_ntsc_d1[] = {
  75        0x00, 0x00, 0x00, 0x01, 0x67, 0x42, 0x00, 0x1e,
  76        0x9a, 0x74, 0x05, 0x81, 0xec, 0x80, 0x00, 0x00,
  77        0x00, 0x01, 0x68, 0xce, 0x32, 0x28, 0x00, 0x00,
  78};
  79
  80static unsigned char vop_6110_ntsc_cif[] = {
  81        0x00, 0x00, 0x00, 0x01, 0x67, 0x42, 0x00, 0x1e,
  82        0x9a, 0x74, 0x0b, 0x0f, 0xc8, 0x00, 0x00, 0x00,
  83        0x01, 0x68, 0xce, 0x32, 0x28, 0x00, 0x00, 0x00,
  84};
  85
  86static unsigned char vop_6110_pal_d1[] = {
  87        0x00, 0x00, 0x00, 0x01, 0x67, 0x42, 0x00, 0x1e,
  88        0x9a, 0x74, 0x05, 0x80, 0x93, 0x20, 0x00, 0x00,
  89        0x00, 0x01, 0x68, 0xce, 0x32, 0x28, 0x00, 0x00,
  90};
  91
  92static unsigned char vop_6110_pal_cif[] = {
  93        0x00, 0x00, 0x00, 0x01, 0x67, 0x42, 0x00, 0x1e,
  94        0x9a, 0x74, 0x0b, 0x04, 0xb2, 0x00, 0x00, 0x00,
  95        0x01, 0x68, 0xce, 0x32, 0x28, 0x00, 0x00, 0x00,
  96};
  97
  98struct vop_header {
  99        /* VE_STATUS0 */
 100        u32 mpeg_size:20, sad_motion_flag:1, video_motion_flag:1, vop_type:2,
 101                channel:5, source_fl:1, interlace:1, progressive:1;
 102
 103        /* VE_STATUS1 */
 104        u32 vsize:8, hsize:8, last_queue:4, nop0:8, scale:4;
 105
 106        /* VE_STATUS2 */
 107        u32 mpeg_off;
 108
 109        /* VE_STATUS3 */
 110        u32 jpeg_off;
 111
 112        /* VE_STATUS4 */
 113        u32 jpeg_size:20, interval:10, nop1:2;
 114
 115        /* VE_STATUS5/6 */
 116        u32 sec, usec;
 117
 118        /* VE_STATUS7/8/9 */
 119        u32 nop2[3];
 120
 121        /* VE_STATUS10 */
 122        u32 mpeg_size_alt:20, nop3:12;
 123
 124        u32 end_nops[5];
 125} __packed;
 126
 127struct solo_enc_buf {
 128        enum solo_enc_types     type;
 129        struct vop_header       *vh;
 130        int                     motion;
 131};
 132
 133static int solo_is_motion_on(struct solo_enc_dev *solo_enc)
 134{
 135        struct solo_dev *solo_dev = solo_enc->solo_dev;
 136
 137        return (solo_dev->motion_mask >> solo_enc->ch) & 1;
 138}
 139
 140static int solo_motion_detected(struct solo_enc_dev *solo_enc)
 141{
 142        struct solo_dev *solo_dev = solo_enc->solo_dev;
 143        unsigned long flags;
 144        u32 ch_mask = 1 << solo_enc->ch;
 145        int ret = 0;
 146
 147        spin_lock_irqsave(&solo_enc->motion_lock, flags);
 148        if (solo_reg_read(solo_dev, SOLO_VI_MOT_STATUS) & ch_mask) {
 149                solo_reg_write(solo_dev, SOLO_VI_MOT_CLEAR, ch_mask);
 150                ret = 1;
 151        }
 152        spin_unlock_irqrestore(&solo_enc->motion_lock, flags);
 153
 154        return ret;
 155}
 156
 157static void solo_motion_toggle(struct solo_enc_dev *solo_enc, int on)
 158{
 159        struct solo_dev *solo_dev = solo_enc->solo_dev;
 160        u32 mask = 1 << solo_enc->ch;
 161        unsigned long flags;
 162
 163        spin_lock_irqsave(&solo_enc->motion_lock, flags);
 164
 165        if (on)
 166                solo_dev->motion_mask |= mask;
 167        else
 168                solo_dev->motion_mask &= ~mask;
 169
 170        solo_reg_write(solo_dev, SOLO_VI_MOT_CLEAR, mask);
 171
 172        solo_reg_write(solo_dev, SOLO_VI_MOT_ADR,
 173                       SOLO_VI_MOTION_EN(solo_dev->motion_mask) |
 174                       (SOLO_MOTION_EXT_ADDR(solo_dev) >> 16));
 175
 176        spin_unlock_irqrestore(&solo_enc->motion_lock, flags);
 177}
 178
 179void solo_update_mode(struct solo_enc_dev *solo_enc)
 180{
 181        struct solo_dev *solo_dev = solo_enc->solo_dev;
 182        int vop_len;
 183        unsigned char *vop;
 184
 185        solo_enc->interlaced = (solo_enc->mode & 0x08) ? 1 : 0;
 186        solo_enc->bw_weight = max(solo_dev->fps / solo_enc->interval, 1);
 187
 188        if (solo_enc->mode == SOLO_ENC_MODE_CIF) {
 189                solo_enc->width = solo_dev->video_hsize >> 1;
 190                solo_enc->height = solo_dev->video_vsize;
 191                if (solo_dev->type == SOLO_DEV_6110) {
 192                        if (solo_dev->video_type == SOLO_VO_FMT_TYPE_NTSC) {
 193                                vop = vop_6110_ntsc_cif;
 194                                vop_len = sizeof(vop_6110_ntsc_cif);
 195                        } else {
 196                                vop = vop_6110_pal_cif;
 197                                vop_len = sizeof(vop_6110_pal_cif);
 198                        }
 199                } else {
 200                        if (solo_dev->video_type == SOLO_VO_FMT_TYPE_NTSC) {
 201                                vop = vop_6010_ntsc_cif;
 202                                vop_len = sizeof(vop_6010_ntsc_cif);
 203                        } else {
 204                                vop = vop_6010_pal_cif;
 205                                vop_len = sizeof(vop_6010_pal_cif);
 206                        }
 207                }
 208        } else {
 209                solo_enc->width = solo_dev->video_hsize;
 210                solo_enc->height = solo_dev->video_vsize << 1;
 211                solo_enc->bw_weight <<= 2;
 212                if (solo_dev->type == SOLO_DEV_6110) {
 213                        if (solo_dev->video_type == SOLO_VO_FMT_TYPE_NTSC) {
 214                                vop = vop_6110_ntsc_d1;
 215                                vop_len = sizeof(vop_6110_ntsc_d1);
 216                        } else {
 217                                vop = vop_6110_pal_d1;
 218                                vop_len = sizeof(vop_6110_pal_d1);
 219                        }
 220                } else {
 221                        if (solo_dev->video_type == SOLO_VO_FMT_TYPE_NTSC) {
 222                                vop = vop_6010_ntsc_d1;
 223                                vop_len = sizeof(vop_6010_ntsc_d1);
 224                        } else {
 225                                vop = vop_6010_pal_d1;
 226                                vop_len = sizeof(vop_6010_pal_d1);
 227                        }
 228                }
 229        }
 230
 231        memcpy(solo_enc->vop, vop, vop_len);
 232
 233        /* Some fixups for 6010/M4V */
 234        if (solo_dev->type == SOLO_DEV_6010) {
 235                u16 fps = solo_dev->fps * 1000;
 236                u16 interval = solo_enc->interval * 1000;
 237
 238                vop = solo_enc->vop;
 239
 240                /* Frame rate and interval */
 241                vop[22] = fps >> 4;
 242                vop[23] = ((fps << 4) & 0xf0) | 0x0c
 243                        | ((interval >> 13) & 0x3);
 244                vop[24] = (interval >> 5) & 0xff;
 245                vop[25] = ((interval << 3) & 0xf8) | 0x04;
 246        }
 247
 248        solo_enc->vop_len = vop_len;
 249
 250        /* Now handle the jpeg header */
 251        vop = solo_enc->jpeg_header;
 252        vop[SOF0_START + 5] = 0xff & (solo_enc->height >> 8);
 253        vop[SOF0_START + 6] = 0xff & solo_enc->height;
 254        vop[SOF0_START + 7] = 0xff & (solo_enc->width >> 8);
 255        vop[SOF0_START + 8] = 0xff & solo_enc->width;
 256
 257        memcpy(vop + DQT_START,
 258               jpeg_dqt[solo_g_jpeg_qp(solo_dev, solo_enc->ch)], DQT_LEN);
 259}
 260
 261static int solo_enc_on(struct solo_enc_dev *solo_enc)
 262{
 263        u8 ch = solo_enc->ch;
 264        struct solo_dev *solo_dev = solo_enc->solo_dev;
 265        u8 interval;
 266
 267        solo_update_mode(solo_enc);
 268
 269        /* Make sure to do a bandwidth check */
 270        if (solo_enc->bw_weight > solo_dev->enc_bw_remain)
 271                return -EBUSY;
 272        solo_enc->sequence = 0;
 273        solo_dev->enc_bw_remain -= solo_enc->bw_weight;
 274
 275        if (solo_enc->type == SOLO_ENC_TYPE_EXT)
 276                solo_reg_write(solo_dev, SOLO_CAP_CH_COMP_ENA_E(ch), 1);
 277
 278        /* Disable all encoding for this channel */
 279        solo_reg_write(solo_dev, SOLO_CAP_CH_SCALE(ch), 0);
 280
 281        /* Common for both std and ext encoding */
 282        solo_reg_write(solo_dev, SOLO_VE_CH_INTL(ch),
 283                       solo_enc->interlaced ? 1 : 0);
 284
 285        if (solo_enc->interlaced)
 286                interval = solo_enc->interval - 1;
 287        else
 288                interval = solo_enc->interval;
 289
 290        /* Standard encoding only */
 291        solo_reg_write(solo_dev, SOLO_VE_CH_GOP(ch), solo_enc->gop);
 292        solo_reg_write(solo_dev, SOLO_VE_CH_QP(ch), solo_enc->qp);
 293        solo_reg_write(solo_dev, SOLO_CAP_CH_INTV(ch), interval);
 294
 295        /* Extended encoding only */
 296        solo_reg_write(solo_dev, SOLO_VE_CH_GOP_E(ch), solo_enc->gop);
 297        solo_reg_write(solo_dev, SOLO_VE_CH_QP_E(ch), solo_enc->qp);
 298        solo_reg_write(solo_dev, SOLO_CAP_CH_INTV_E(ch), interval);
 299
 300        /* Enables the standard encoder */
 301        solo_reg_write(solo_dev, SOLO_CAP_CH_SCALE(ch), solo_enc->mode);
 302
 303        return 0;
 304}
 305
 306static void solo_enc_off(struct solo_enc_dev *solo_enc)
 307{
 308        struct solo_dev *solo_dev = solo_enc->solo_dev;
 309
 310        solo_dev->enc_bw_remain += solo_enc->bw_weight;
 311
 312        solo_reg_write(solo_dev, SOLO_CAP_CH_SCALE(solo_enc->ch), 0);
 313        solo_reg_write(solo_dev, SOLO_CAP_CH_COMP_ENA_E(solo_enc->ch), 0);
 314}
 315
 316static int enc_get_mpeg_dma(struct solo_dev *solo_dev, dma_addr_t dma,
 317                              unsigned int off, unsigned int size)
 318{
 319        int ret;
 320
 321        if (off > SOLO_MP4E_EXT_SIZE(solo_dev))
 322                return -EINVAL;
 323
 324        /* Single shot */
 325        if (off + size <= SOLO_MP4E_EXT_SIZE(solo_dev)) {
 326                return solo_p2m_dma_t(solo_dev, 0, dma,
 327                                      SOLO_MP4E_EXT_ADDR(solo_dev) + off, size,
 328                                      0, 0);
 329        }
 330
 331        /* Buffer wrap */
 332        ret = solo_p2m_dma_t(solo_dev, 0, dma,
 333                             SOLO_MP4E_EXT_ADDR(solo_dev) + off,
 334                             SOLO_MP4E_EXT_SIZE(solo_dev) - off, 0, 0);
 335
 336        if (!ret) {
 337                ret = solo_p2m_dma_t(solo_dev, 0,
 338                             dma + SOLO_MP4E_EXT_SIZE(solo_dev) - off,
 339                             SOLO_MP4E_EXT_ADDR(solo_dev),
 340                             size + off - SOLO_MP4E_EXT_SIZE(solo_dev), 0, 0);
 341        }
 342
 343        return ret;
 344}
 345
 346/* Build a descriptor queue out of an SG list and send it to the P2M for
 347 * processing. */
 348static int solo_send_desc(struct solo_enc_dev *solo_enc, int skip,
 349                          struct vb2_dma_sg_desc *vbuf, int off, int size,
 350                          unsigned int base, unsigned int base_size)
 351{
 352        struct solo_dev *solo_dev = solo_enc->solo_dev;
 353        struct scatterlist *sg;
 354        int i;
 355        int ret;
 356
 357        if (WARN_ON_ONCE(size > FRAME_BUF_SIZE))
 358                return -EINVAL;
 359
 360        solo_enc->desc_count = 1;
 361
 362        for_each_sg(vbuf->sglist, sg, vbuf->num_pages, i) {
 363                struct solo_p2m_desc *desc;
 364                dma_addr_t dma;
 365                int len;
 366                int left = base_size - off;
 367
 368                desc = &solo_enc->desc_items[solo_enc->desc_count++];
 369                dma = sg_dma_address(sg);
 370                len = sg_dma_len(sg);
 371
 372                /* We assume this is smaller than the scatter size */
 373                BUG_ON(skip >= len);
 374                if (skip) {
 375                        len -= skip;
 376                        dma += skip;
 377                        size -= skip;
 378                        skip = 0;
 379                }
 380
 381                len = min(len, size);
 382
 383                if (len <= left) {
 384                        /* Single descriptor */
 385                        solo_p2m_fill_desc(desc, 0, dma, base + off,
 386                                           len, 0, 0);
 387                } else {
 388                        /* Buffer wrap */
 389                        /* XXX: Do these as separate DMA requests, to avoid
 390                           timeout errors triggered by awkwardly sized
 391                           descriptors. See
 392                           <https://github.com/bluecherrydvr/solo6x10/issues/8>
 393                         */
 394                        ret = solo_p2m_dma_t(solo_dev, 0, dma, base + off,
 395                                             left, 0, 0);
 396                        if (ret)
 397                                return ret;
 398
 399                        ret = solo_p2m_dma_t(solo_dev, 0, dma + left, base,
 400                                             len - left, 0, 0);
 401                        if (ret)
 402                                return ret;
 403
 404                        solo_enc->desc_count--;
 405                }
 406
 407                size -= len;
 408                if (size <= 0)
 409                        break;
 410
 411                off += len;
 412                if (off >= base_size)
 413                        off -= base_size;
 414
 415                /* Because we may use two descriptors per loop */
 416                if (solo_enc->desc_count >= (solo_enc->desc_nelts - 1)) {
 417                        ret = solo_p2m_dma_desc(solo_dev, solo_enc->desc_items,
 418                                                solo_enc->desc_dma,
 419                                                solo_enc->desc_count - 1);
 420                        if (ret)
 421                                return ret;
 422                        solo_enc->desc_count = 1;
 423                }
 424        }
 425
 426        if (solo_enc->desc_count <= 1)
 427                return 0;
 428
 429        return solo_p2m_dma_desc(solo_dev, solo_enc->desc_items, solo_enc->desc_dma,
 430                                 solo_enc->desc_count - 1);
 431}
 432
 433static int solo_fill_jpeg(struct solo_enc_dev *solo_enc,
 434                struct vb2_buffer *vb, struct vop_header *vh)
 435{
 436        struct solo_dev *solo_dev = solo_enc->solo_dev;
 437        struct vb2_dma_sg_desc *vbuf = vb2_dma_sg_plane_desc(vb, 0);
 438        int frame_size;
 439        int ret;
 440
 441        vb->v4l2_buf.flags |= V4L2_BUF_FLAG_KEYFRAME;
 442
 443        if (vb2_plane_size(vb, 0) < vh->jpeg_size + solo_enc->jpeg_len)
 444                return -EIO;
 445
 446        sg_copy_from_buffer(vbuf->sglist, vbuf->num_pages,
 447                        solo_enc->jpeg_header,
 448                        solo_enc->jpeg_len);
 449
 450        frame_size = (vh->jpeg_size + solo_enc->jpeg_len + (DMA_ALIGN - 1))
 451                & ~(DMA_ALIGN - 1);
 452        vb2_set_plane_payload(vb, 0, vh->jpeg_size + solo_enc->jpeg_len);
 453
 454        dma_map_sg(&solo_dev->pdev->dev, vbuf->sglist, vbuf->num_pages,
 455                        DMA_FROM_DEVICE);
 456        ret = solo_send_desc(solo_enc, solo_enc->jpeg_len, vbuf, vh->jpeg_off,
 457                        frame_size, SOLO_JPEG_EXT_ADDR(solo_dev),
 458                        SOLO_JPEG_EXT_SIZE(solo_dev));
 459        dma_unmap_sg(&solo_dev->pdev->dev, vbuf->sglist, vbuf->num_pages,
 460                        DMA_FROM_DEVICE);
 461        return ret;
 462}
 463
 464static int solo_fill_mpeg(struct solo_enc_dev *solo_enc,
 465                struct vb2_buffer *vb, struct vop_header *vh)
 466{
 467        struct solo_dev *solo_dev = solo_enc->solo_dev;
 468        struct vb2_dma_sg_desc *vbuf = vb2_dma_sg_plane_desc(vb, 0);
 469        int frame_off, frame_size;
 470        int skip = 0;
 471        int ret;
 472
 473        if (vb2_plane_size(vb, 0) < vh->mpeg_size)
 474                return -EIO;
 475
 476        /* If this is a key frame, add extra header */
 477        if (!vh->vop_type) {
 478                sg_copy_from_buffer(vbuf->sglist, vbuf->num_pages,
 479                                solo_enc->vop,
 480                                solo_enc->vop_len);
 481
 482                skip = solo_enc->vop_len;
 483
 484                vb->v4l2_buf.flags |= V4L2_BUF_FLAG_KEYFRAME;
 485                vb2_set_plane_payload(vb, 0, vh->mpeg_size + solo_enc->vop_len);
 486        } else {
 487                vb->v4l2_buf.flags |= V4L2_BUF_FLAG_PFRAME;
 488                vb2_set_plane_payload(vb, 0, vh->mpeg_size);
 489        }
 490
 491        /* Now get the actual mpeg payload */
 492        frame_off = (vh->mpeg_off + sizeof(*vh))
 493                % SOLO_MP4E_EXT_SIZE(solo_dev);
 494        frame_size = (vh->mpeg_size + skip + (DMA_ALIGN - 1))
 495                & ~(DMA_ALIGN - 1);
 496
 497        dma_map_sg(&solo_dev->pdev->dev, vbuf->sglist, vbuf->num_pages,
 498                        DMA_FROM_DEVICE);
 499        ret = solo_send_desc(solo_enc, skip, vbuf, frame_off, frame_size,
 500                        SOLO_MP4E_EXT_ADDR(solo_dev),
 501                        SOLO_MP4E_EXT_SIZE(solo_dev));
 502        dma_unmap_sg(&solo_dev->pdev->dev, vbuf->sglist, vbuf->num_pages,
 503                        DMA_FROM_DEVICE);
 504        return ret;
 505}
 506
 507static int solo_enc_fillbuf(struct solo_enc_dev *solo_enc,
 508                            struct vb2_buffer *vb, struct solo_enc_buf *enc_buf)
 509{
 510        struct vop_header *vh = enc_buf->vh;
 511        int ret;
 512
 513        /* Check for motion flags */
 514        vb->v4l2_buf.flags &= ~(V4L2_BUF_FLAG_MOTION_ON |
 515                                V4L2_BUF_FLAG_MOTION_DETECTED);
 516        if (solo_is_motion_on(solo_enc)) {
 517                vb->v4l2_buf.flags |= V4L2_BUF_FLAG_MOTION_ON;
 518                if (enc_buf->motion)
 519                        vb->v4l2_buf.flags |= V4L2_BUF_FLAG_MOTION_DETECTED;
 520        }
 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                vb->v4l2_buf.sequence = solo_enc->sequence++;
 534                vb->v4l2_buf.timestamp.tv_sec = vh->sec;
 535                vb->v4l2_buf.timestamp.tv_usec = vh->usec;
 536        }
 537
 538        vb2_buffer_done(vb, ret ? VB2_BUF_STATE_ERROR : VB2_BUF_STATE_DONE);
 539
 540        return ret;
 541}
 542
 543static void solo_enc_handle_one(struct solo_enc_dev *solo_enc,
 544                                struct solo_enc_buf *enc_buf)
 545{
 546        struct solo_vb2_buf *vb;
 547        unsigned long flags;
 548
 549        mutex_lock(&solo_enc->lock);
 550        if (solo_enc->type != enc_buf->type)
 551                goto unlock;
 552
 553        spin_lock_irqsave(&solo_enc->av_lock, flags);
 554        if (list_empty(&solo_enc->vidq_active)) {
 555                spin_unlock_irqrestore(&solo_enc->av_lock, flags);
 556                goto unlock;
 557        }
 558        vb = list_first_entry(&solo_enc->vidq_active, struct solo_vb2_buf, list);
 559        list_del(&vb->list);
 560        spin_unlock_irqrestore(&solo_enc->av_lock, flags);
 561
 562        solo_enc_fillbuf(solo_enc, &vb->vb, enc_buf);
 563unlock:
 564        mutex_unlock(&solo_enc->lock);
 565}
 566
 567void solo_enc_v4l2_isr(struct solo_dev *solo_dev)
 568{
 569        wake_up_interruptible_all(&solo_dev->ring_thread_wait);
 570}
 571
 572static void solo_handle_ring(struct solo_dev *solo_dev)
 573{
 574        for (;;) {
 575                struct solo_enc_dev *solo_enc;
 576                struct solo_enc_buf enc_buf;
 577                u32 mpeg_current, off;
 578                u8 ch;
 579                u8 cur_q;
 580
 581                /* Check if the hardware has any new ones in the queue */
 582                cur_q = solo_reg_read(solo_dev, SOLO_VE_STATE(11)) & 0xff;
 583                if (cur_q == solo_dev->enc_idx)
 584                        break;
 585
 586                mpeg_current = solo_reg_read(solo_dev,
 587                                        SOLO_VE_MPEG4_QUE(solo_dev->enc_idx));
 588                solo_dev->enc_idx = (solo_dev->enc_idx + 1) % MP4_QS;
 589
 590                ch = (mpeg_current >> 24) & 0x1f;
 591                off = mpeg_current & 0x00ffffff;
 592
 593                if (ch >= SOLO_MAX_CHANNELS) {
 594                        ch -= SOLO_MAX_CHANNELS;
 595                        enc_buf.type = SOLO_ENC_TYPE_EXT;
 596                } else
 597                        enc_buf.type = SOLO_ENC_TYPE_STD;
 598
 599                solo_enc = solo_dev->v4l2_enc[ch];
 600                if (solo_enc == NULL) {
 601                        dev_err(&solo_dev->pdev->dev,
 602                                "Got spurious packet for channel %d\n", ch);
 603                        continue;
 604                }
 605
 606                /* FAIL... */
 607                if (enc_get_mpeg_dma(solo_dev, solo_dev->vh_dma, off,
 608                                     sizeof(struct vop_header)))
 609                        continue;
 610
 611                enc_buf.vh = (struct vop_header *)solo_dev->vh_buf;
 612                enc_buf.vh->mpeg_off -= SOLO_MP4E_EXT_ADDR(solo_dev);
 613                enc_buf.vh->jpeg_off -= SOLO_JPEG_EXT_ADDR(solo_dev);
 614
 615                /* Sanity check */
 616                if (enc_buf.vh->mpeg_off != off)
 617                        continue;
 618
 619                if (solo_motion_detected(solo_enc))
 620                        enc_buf.motion = 1;
 621                else
 622                        enc_buf.motion = 0;
 623
 624                solo_enc_handle_one(solo_enc, &enc_buf);
 625        }
 626}
 627
 628static int solo_ring_thread(void *data)
 629{
 630        struct solo_dev *solo_dev = data;
 631        DECLARE_WAITQUEUE(wait, current);
 632
 633        set_freezable();
 634        add_wait_queue(&solo_dev->ring_thread_wait, &wait);
 635
 636        for (;;) {
 637                long timeout = schedule_timeout_interruptible(HZ);
 638                if (timeout == -ERESTARTSYS || kthread_should_stop())
 639                        break;
 640                solo_irq_off(solo_dev, SOLO_IRQ_ENCODER);
 641                solo_handle_ring(solo_dev);
 642                solo_irq_on(solo_dev, SOLO_IRQ_ENCODER);
 643                try_to_freeze();
 644        }
 645
 646        remove_wait_queue(&solo_dev->ring_thread_wait, &wait);
 647
 648        return 0;
 649}
 650
 651static int solo_enc_queue_setup(struct vb2_queue *q, const struct v4l2_format *fmt,
 652                           unsigned int *num_buffers, unsigned int *num_planes,
 653                           unsigned int sizes[], void *alloc_ctxs[])
 654{
 655        sizes[0] = FRAME_BUF_SIZE;
 656        *num_planes = 1;
 657
 658        if (*num_buffers < MIN_VID_BUFFERS)
 659                *num_buffers = MIN_VID_BUFFERS;
 660
 661        return 0;
 662}
 663
 664static void solo_enc_buf_queue(struct vb2_buffer *vb)
 665{
 666        struct vb2_queue *vq = vb->vb2_queue;
 667        struct solo_enc_dev *solo_enc = vb2_get_drv_priv(vq);
 668        struct solo_vb2_buf *solo_vb =
 669                container_of(vb, struct solo_vb2_buf, vb);
 670
 671        spin_lock(&solo_enc->av_lock);
 672        list_add_tail(&solo_vb->list, &solo_enc->vidq_active);
 673        spin_unlock(&solo_enc->av_lock);
 674}
 675
 676static int solo_ring_start(struct solo_dev *solo_dev)
 677{
 678        solo_dev->ring_thread = kthread_run(solo_ring_thread, solo_dev,
 679                                            SOLO6X10_NAME "_ring");
 680        if (IS_ERR(solo_dev->ring_thread)) {
 681                int err = PTR_ERR(solo_dev->ring_thread);
 682                solo_dev->ring_thread = NULL;
 683                return err;
 684        }
 685
 686        solo_irq_on(solo_dev, SOLO_IRQ_ENCODER);
 687
 688        return 0;
 689}
 690
 691static void solo_ring_stop(struct solo_dev *solo_dev)
 692{
 693        if (solo_dev->ring_thread) {
 694                kthread_stop(solo_dev->ring_thread);
 695                solo_dev->ring_thread = NULL;
 696        }
 697
 698        solo_irq_off(solo_dev, SOLO_IRQ_ENCODER);
 699}
 700
 701static int solo_enc_start_streaming(struct vb2_queue *q, unsigned int count)
 702{
 703        struct solo_enc_dev *solo_enc = vb2_get_drv_priv(q);
 704        int ret;
 705
 706        ret = solo_enc_on(solo_enc);
 707        if (ret)
 708                return ret;
 709        return solo_ring_start(solo_enc->solo_dev);
 710}
 711
 712static int solo_enc_stop_streaming(struct vb2_queue *q)
 713{
 714        struct solo_enc_dev *solo_enc = vb2_get_drv_priv(q);
 715
 716        solo_enc_off(solo_enc);
 717        INIT_LIST_HEAD(&solo_enc->vidq_active);
 718        solo_ring_stop(solo_enc->solo_dev);
 719        return 0;
 720}
 721
 722static struct vb2_ops solo_enc_video_qops = {
 723        .queue_setup    = solo_enc_queue_setup,
 724        .buf_queue      = solo_enc_buf_queue,
 725        .start_streaming = solo_enc_start_streaming,
 726        .stop_streaming = solo_enc_stop_streaming,
 727        .wait_prepare   = vb2_ops_wait_prepare,
 728        .wait_finish    = vb2_ops_wait_finish,
 729};
 730
 731static int solo_enc_querycap(struct file *file, void  *priv,
 732                             struct v4l2_capability *cap)
 733{
 734        struct solo_enc_dev *solo_enc = video_drvdata(file);
 735        struct solo_dev *solo_dev = solo_enc->solo_dev;
 736
 737        strcpy(cap->driver, SOLO6X10_NAME);
 738        snprintf(cap->card, sizeof(cap->card), "Softlogic 6x10 Enc %d",
 739                 solo_enc->ch);
 740        snprintf(cap->bus_info, sizeof(cap->bus_info), "PCI:%s",
 741                 pci_name(solo_dev->pdev));
 742        cap->device_caps = V4L2_CAP_VIDEO_CAPTURE |
 743                        V4L2_CAP_READWRITE | V4L2_CAP_STREAMING;
 744        cap->capabilities = cap->device_caps | V4L2_CAP_DEVICE_CAPS;
 745        return 0;
 746}
 747
 748static int solo_enc_enum_input(struct file *file, void *priv,
 749                               struct v4l2_input *input)
 750{
 751        struct solo_enc_dev *solo_enc = video_drvdata(file);
 752        struct solo_dev *solo_dev = solo_enc->solo_dev;
 753
 754        if (input->index)
 755                return -EINVAL;
 756
 757        snprintf(input->name, sizeof(input->name), "Encoder %d",
 758                 solo_enc->ch + 1);
 759        input->type = V4L2_INPUT_TYPE_CAMERA;
 760        input->std = solo_enc->vfd->tvnorms;
 761
 762        if (!tw28_get_video_status(solo_dev, solo_enc->ch))
 763                input->status = V4L2_IN_ST_NO_SIGNAL;
 764
 765        return 0;
 766}
 767
 768static int solo_enc_set_input(struct file *file, void *priv,
 769                              unsigned int index)
 770{
 771        if (index)
 772                return -EINVAL;
 773
 774        return 0;
 775}
 776
 777static int solo_enc_get_input(struct file *file, void *priv,
 778                              unsigned int *index)
 779{
 780        *index = 0;
 781
 782        return 0;
 783}
 784
 785static int solo_enc_enum_fmt_cap(struct file *file, void *priv,
 786                                 struct v4l2_fmtdesc *f)
 787{
 788        struct solo_enc_dev *solo_enc = video_drvdata(file);
 789        int dev_type = solo_enc->solo_dev->type;
 790
 791        switch (f->index) {
 792        case 0:
 793                switch (dev_type) {
 794                case SOLO_DEV_6010:
 795                        f->pixelformat = V4L2_PIX_FMT_MPEG4;
 796                        strcpy(f->description, "MPEG-4 part 2");
 797                        break;
 798                case SOLO_DEV_6110:
 799                        f->pixelformat = V4L2_PIX_FMT_H264;
 800                        strcpy(f->description, "H.264");
 801                        break;
 802                }
 803                break;
 804        case 1:
 805                f->pixelformat = V4L2_PIX_FMT_MJPEG;
 806                strcpy(f->description, "MJPEG");
 807                break;
 808        default:
 809                return -EINVAL;
 810        }
 811
 812        f->flags = V4L2_FMT_FLAG_COMPRESSED;
 813
 814        return 0;
 815}
 816
 817static inline int solo_valid_pixfmt(u32 pixfmt, int dev_type)
 818{
 819        return (pixfmt == V4L2_PIX_FMT_H264 && dev_type == SOLO_DEV_6110)
 820                || (pixfmt == V4L2_PIX_FMT_MPEG4 && dev_type == SOLO_DEV_6010)
 821                || pixfmt == V4L2_PIX_FMT_MJPEG ? 0 : -EINVAL;
 822}
 823
 824static int solo_enc_try_fmt_cap(struct file *file, void *priv,
 825                            struct v4l2_format *f)
 826{
 827        struct solo_enc_dev *solo_enc = video_drvdata(file);
 828        struct solo_dev *solo_dev = solo_enc->solo_dev;
 829        struct v4l2_pix_format *pix = &f->fmt.pix;
 830
 831        if (solo_valid_pixfmt(pix->pixelformat, solo_dev->type))
 832                return -EINVAL;
 833
 834        if (pix->width < solo_dev->video_hsize ||
 835            pix->height < solo_dev->video_vsize << 1) {
 836                /* Default to CIF 1/2 size */
 837                pix->width = solo_dev->video_hsize >> 1;
 838                pix->height = solo_dev->video_vsize;
 839        } else {
 840                /* Full frame */
 841                pix->width = solo_dev->video_hsize;
 842                pix->height = solo_dev->video_vsize << 1;
 843        }
 844
 845        switch (pix->field) {
 846        case V4L2_FIELD_NONE:
 847        case V4L2_FIELD_INTERLACED:
 848                break;
 849        case V4L2_FIELD_ANY:
 850        default:
 851                pix->field = V4L2_FIELD_INTERLACED;
 852                break;
 853        }
 854
 855        /* Just set these */
 856        pix->colorspace = V4L2_COLORSPACE_SMPTE170M;
 857        pix->sizeimage = FRAME_BUF_SIZE;
 858        pix->bytesperline = 0;
 859        pix->priv = 0;
 860
 861        return 0;
 862}
 863
 864static int solo_enc_set_fmt_cap(struct file *file, void *priv,
 865                                struct v4l2_format *f)
 866{
 867        struct solo_enc_dev *solo_enc = video_drvdata(file);
 868        struct solo_dev *solo_dev = solo_enc->solo_dev;
 869        struct v4l2_pix_format *pix = &f->fmt.pix;
 870        int ret;
 871
 872        if (vb2_is_busy(&solo_enc->vidq))
 873                return -EBUSY;
 874
 875        ret = solo_enc_try_fmt_cap(file, priv, f);
 876        if (ret)
 877                return ret;
 878
 879        if (pix->width == solo_dev->video_hsize)
 880                solo_enc->mode = SOLO_ENC_MODE_D1;
 881        else
 882                solo_enc->mode = SOLO_ENC_MODE_CIF;
 883
 884        /* This does not change the encoder at all */
 885        solo_enc->fmt = pix->pixelformat;
 886
 887        /*
 888         * More information is needed about these 'extended' types. As far
 889         * as I can tell these are basically additional video streams with
 890         * different MPEG encoding attributes that can run in parallel with
 891         * the main stream. If so, then this should be implemented as a
 892         * second video node. Abusing priv like this is certainly not the
 893         * right approach.
 894        if (pix->priv)
 895                solo_enc->type = SOLO_ENC_TYPE_EXT;
 896         */
 897        solo_update_mode(solo_enc);
 898        return 0;
 899}
 900
 901static int solo_enc_get_fmt_cap(struct file *file, void *priv,
 902                                struct v4l2_format *f)
 903{
 904        struct solo_enc_dev *solo_enc = video_drvdata(file);
 905        struct v4l2_pix_format *pix = &f->fmt.pix;
 906
 907        pix->width = solo_enc->width;
 908        pix->height = solo_enc->height;
 909        pix->pixelformat = solo_enc->fmt;
 910        pix->field = solo_enc->interlaced ? V4L2_FIELD_INTERLACED :
 911                     V4L2_FIELD_NONE;
 912        pix->sizeimage = FRAME_BUF_SIZE;
 913        pix->colorspace = V4L2_COLORSPACE_SMPTE170M;
 914        pix->priv = 0;
 915
 916        return 0;
 917}
 918
 919static int solo_enc_g_std(struct file *file, void *priv, v4l2_std_id *i)
 920{
 921        struct solo_enc_dev *solo_enc = video_drvdata(file);
 922        struct solo_dev *solo_dev = solo_enc->solo_dev;
 923
 924        if (solo_dev->video_type == SOLO_VO_FMT_TYPE_NTSC)
 925                *i = V4L2_STD_NTSC_M;
 926        else
 927                *i = V4L2_STD_PAL;
 928        return 0;
 929}
 930
 931static int solo_enc_s_std(struct file *file, void *priv, v4l2_std_id std)
 932{
 933        struct solo_enc_dev *solo_enc = video_drvdata(file);
 934
 935        return solo_set_video_type(solo_enc->solo_dev, std & V4L2_STD_PAL);
 936}
 937
 938static int solo_enum_framesizes(struct file *file, void *priv,
 939                                struct v4l2_frmsizeenum *fsize)
 940{
 941        struct solo_enc_dev *solo_enc = video_drvdata(file);
 942        struct solo_dev *solo_dev = solo_enc->solo_dev;
 943
 944        if (solo_valid_pixfmt(fsize->pixel_format, solo_dev->type))
 945                return -EINVAL;
 946
 947        switch (fsize->index) {
 948        case 0:
 949                fsize->discrete.width = solo_dev->video_hsize >> 1;
 950                fsize->discrete.height = solo_dev->video_vsize;
 951                break;
 952        case 1:
 953                fsize->discrete.width = solo_dev->video_hsize;
 954                fsize->discrete.height = solo_dev->video_vsize << 1;
 955                break;
 956        default:
 957                return -EINVAL;
 958        }
 959
 960        fsize->type = V4L2_FRMSIZE_TYPE_DISCRETE;
 961
 962        return 0;
 963}
 964
 965static int solo_enum_frameintervals(struct file *file, void *priv,
 966                                    struct v4l2_frmivalenum *fintv)
 967{
 968        struct solo_enc_dev *solo_enc = video_drvdata(file);
 969        struct solo_dev *solo_dev = solo_enc->solo_dev;
 970
 971        if (solo_valid_pixfmt(fintv->pixel_format, solo_dev->type))
 972                return -EINVAL;
 973        if (fintv->index)
 974                return -EINVAL;
 975        if ((fintv->width != solo_dev->video_hsize >> 1 ||
 976             fintv->height != solo_dev->video_vsize) &&
 977            (fintv->width != solo_dev->video_hsize ||
 978             fintv->height != solo_dev->video_vsize << 1))
 979                return -EINVAL;
 980
 981        fintv->type = V4L2_FRMIVAL_TYPE_STEPWISE;
 982
 983        fintv->stepwise.min.numerator = 1;
 984        fintv->stepwise.min.denominator = solo_dev->fps;
 985
 986        fintv->stepwise.max.numerator = 15;
 987        fintv->stepwise.max.denominator = solo_dev->fps;
 988
 989        fintv->stepwise.step.numerator = 1;
 990        fintv->stepwise.step.denominator = solo_dev->fps;
 991
 992        return 0;
 993}
 994
 995static int solo_g_parm(struct file *file, void *priv,
 996                       struct v4l2_streamparm *sp)
 997{
 998        struct solo_enc_dev *solo_enc = video_drvdata(file);
 999        struct solo_dev *solo_dev = solo_enc->solo_dev;
1000        struct v4l2_captureparm *cp = &sp->parm.capture;
1001
1002        cp->capability = V4L2_CAP_TIMEPERFRAME;
1003        cp->timeperframe.numerator = solo_enc->interval;
1004        cp->timeperframe.denominator = solo_dev->fps;
1005        cp->capturemode = 0;
1006        /* XXX: Shouldn't we be able to get/set this from videobuf? */
1007        cp->readbuffers = 2;
1008
1009        return 0;
1010}
1011
1012static int solo_s_parm(struct file *file, void *priv,
1013                       struct v4l2_streamparm *sp)
1014{
1015        struct solo_enc_dev *solo_enc = video_drvdata(file);
1016        struct solo_dev *solo_dev = solo_enc->solo_dev;
1017        struct v4l2_captureparm *cp = &sp->parm.capture;
1018
1019        if (vb2_is_streaming(&solo_enc->vidq))
1020                return -EBUSY;
1021
1022        if ((cp->timeperframe.numerator == 0) ||
1023            (cp->timeperframe.denominator == 0)) {
1024                /* reset framerate */
1025                cp->timeperframe.numerator = 1;
1026                cp->timeperframe.denominator = solo_dev->fps;
1027        }
1028
1029        if (cp->timeperframe.denominator != solo_dev->fps)
1030                cp->timeperframe.denominator = solo_dev->fps;
1031
1032        if (cp->timeperframe.numerator > 15)
1033                cp->timeperframe.numerator = 15;
1034
1035        solo_enc->interval = cp->timeperframe.numerator;
1036
1037        cp->capability = V4L2_CAP_TIMEPERFRAME;
1038        cp->readbuffers = 2;
1039
1040        solo_update_mode(solo_enc);
1041        return 0;
1042}
1043
1044static long solo_enc_default(struct file *file, void *fh,
1045                        bool valid_prio, unsigned int cmd, void *arg)
1046{
1047        struct solo_enc_dev *solo_enc = video_drvdata(file);
1048        struct solo_dev *solo_dev = solo_enc->solo_dev;
1049        struct solo_motion_thresholds *thresholds = arg;
1050
1051        switch (cmd) {
1052        case SOLO_IOC_G_MOTION_THRESHOLDS:
1053                *thresholds = solo_enc->motion_thresholds;
1054                return 0;
1055
1056        case SOLO_IOC_S_MOTION_THRESHOLDS:
1057                if (!valid_prio)
1058                        return -EBUSY;
1059                solo_enc->motion_thresholds = *thresholds;
1060                if (solo_enc->motion_enabled && !solo_enc->motion_global)
1061                        return solo_set_motion_block(solo_dev, solo_enc->ch,
1062                                                &solo_enc->motion_thresholds);
1063                return 0;
1064        default:
1065                return -ENOTTY;
1066        }
1067}
1068
1069static int solo_s_ctrl(struct v4l2_ctrl *ctrl)
1070{
1071        struct solo_enc_dev *solo_enc =
1072                container_of(ctrl->handler, struct solo_enc_dev, hdl);
1073        struct solo_dev *solo_dev = solo_enc->solo_dev;
1074        int err;
1075
1076        switch (ctrl->id) {
1077        case V4L2_CID_BRIGHTNESS:
1078        case V4L2_CID_CONTRAST:
1079        case V4L2_CID_SATURATION:
1080        case V4L2_CID_HUE:
1081        case V4L2_CID_SHARPNESS:
1082                return tw28_set_ctrl_val(solo_dev, ctrl->id, solo_enc->ch,
1083                                         ctrl->val);
1084        case V4L2_CID_MPEG_VIDEO_GOP_SIZE:
1085                solo_enc->gop = ctrl->val;
1086                return 0;
1087        case V4L2_CID_MOTION_THRESHOLD:
1088                solo_enc->motion_thresh = ctrl->val;
1089                if (!solo_enc->motion_global || !solo_enc->motion_enabled)
1090                        return 0;
1091                return solo_set_motion_threshold(solo_dev, solo_enc->ch, ctrl->val);
1092        case V4L2_CID_MOTION_MODE:
1093                solo_enc->motion_global = ctrl->val == 1;
1094                solo_enc->motion_enabled = ctrl->val > 0;
1095                if (ctrl->val) {
1096                        if (solo_enc->motion_global)
1097                                solo_set_motion_threshold(solo_dev, solo_enc->ch,
1098                                                solo_enc->motion_thresh);
1099                        else
1100                                solo_set_motion_block(solo_dev, solo_enc->ch,
1101                                                &solo_enc->motion_thresholds);
1102                }
1103                solo_motion_toggle(solo_enc, ctrl->val);
1104                return 0;
1105        case V4L2_CID_OSD_TEXT:
1106                strcpy(solo_enc->osd_text, ctrl->string);
1107                err = solo_osd_print(solo_enc);
1108                return err;
1109        default:
1110                return -EINVAL;
1111        }
1112
1113        return 0;
1114}
1115
1116static const struct v4l2_file_operations solo_enc_fops = {
1117        .owner                  = THIS_MODULE,
1118        .open                   = v4l2_fh_open,
1119        .release                = vb2_fop_release,
1120        .read                   = vb2_fop_read,
1121        .poll                   = vb2_fop_poll,
1122        .mmap                   = vb2_fop_mmap,
1123        .unlocked_ioctl         = video_ioctl2,
1124};
1125
1126static const struct v4l2_ioctl_ops solo_enc_ioctl_ops = {
1127        .vidioc_querycap                = solo_enc_querycap,
1128        .vidioc_s_std                   = solo_enc_s_std,
1129        .vidioc_g_std                   = solo_enc_g_std,
1130        /* Input callbacks */
1131        .vidioc_enum_input              = solo_enc_enum_input,
1132        .vidioc_s_input                 = solo_enc_set_input,
1133        .vidioc_g_input                 = solo_enc_get_input,
1134        /* Video capture format callbacks */
1135        .vidioc_enum_fmt_vid_cap        = solo_enc_enum_fmt_cap,
1136        .vidioc_try_fmt_vid_cap         = solo_enc_try_fmt_cap,
1137        .vidioc_s_fmt_vid_cap           = solo_enc_set_fmt_cap,
1138        .vidioc_g_fmt_vid_cap           = solo_enc_get_fmt_cap,
1139        /* Streaming I/O */
1140        .vidioc_reqbufs                 = vb2_ioctl_reqbufs,
1141        .vidioc_querybuf                = vb2_ioctl_querybuf,
1142        .vidioc_qbuf                    = vb2_ioctl_qbuf,
1143        .vidioc_dqbuf                   = vb2_ioctl_dqbuf,
1144        .vidioc_streamon                = vb2_ioctl_streamon,
1145        .vidioc_streamoff               = vb2_ioctl_streamoff,
1146        /* Frame size and interval */
1147        .vidioc_enum_framesizes         = solo_enum_framesizes,
1148        .vidioc_enum_frameintervals     = solo_enum_frameintervals,
1149        /* Video capture parameters */
1150        .vidioc_s_parm                  = solo_s_parm,
1151        .vidioc_g_parm                  = solo_g_parm,
1152        /* Logging and events */
1153        .vidioc_log_status              = v4l2_ctrl_log_status,
1154        .vidioc_subscribe_event         = v4l2_ctrl_subscribe_event,
1155        .vidioc_unsubscribe_event       = v4l2_event_unsubscribe,
1156        .vidioc_default                 = solo_enc_default,
1157};
1158
1159static const struct video_device solo_enc_template = {
1160        .name                   = SOLO6X10_NAME,
1161        .fops                   = &solo_enc_fops,
1162        .ioctl_ops              = &solo_enc_ioctl_ops,
1163        .minor                  = -1,
1164        .release                = video_device_release,
1165        .tvnorms                = V4L2_STD_NTSC_M | V4L2_STD_PAL,
1166};
1167
1168static const struct v4l2_ctrl_ops solo_ctrl_ops = {
1169        .s_ctrl = solo_s_ctrl,
1170};
1171
1172static const struct v4l2_ctrl_config solo_motion_threshold_ctrl = {
1173        .ops = &solo_ctrl_ops,
1174        .id = V4L2_CID_MOTION_THRESHOLD,
1175        .name = "Motion Detection Threshold",
1176        .type = V4L2_CTRL_TYPE_INTEGER,
1177        .max = 0xffff,
1178        .def = SOLO_DEF_MOT_THRESH,
1179        .step = 1,
1180        .flags = V4L2_CTRL_FLAG_SLIDER,
1181};
1182
1183static const char * const solo_motion_mode_menu[] = {
1184        "Disabled",
1185        "Global Threshold",
1186        "Regional Threshold",
1187        NULL
1188};
1189
1190static const struct v4l2_ctrl_config solo_motion_enable_ctrl = {
1191        .ops = &solo_ctrl_ops,
1192        .id = V4L2_CID_MOTION_MODE,
1193        .name = "Motion Detection Mode",
1194        .type = V4L2_CTRL_TYPE_MENU,
1195        .qmenu = solo_motion_mode_menu,
1196        .max = 2,
1197};
1198
1199static const struct v4l2_ctrl_config solo_osd_text_ctrl = {
1200        .ops = &solo_ctrl_ops,
1201        .id = V4L2_CID_OSD_TEXT,
1202        .name = "OSD Text",
1203        .type = V4L2_CTRL_TYPE_STRING,
1204        .max = OSD_TEXT_MAX,
1205        .step = 1,
1206};
1207
1208static struct solo_enc_dev *solo_enc_alloc(struct solo_dev *solo_dev,
1209                                           u8 ch, unsigned nr)
1210{
1211        struct solo_enc_dev *solo_enc;
1212        struct v4l2_ctrl_handler *hdl;
1213        int ret;
1214        int x, y;
1215
1216        solo_enc = kzalloc(sizeof(*solo_enc), GFP_KERNEL);
1217        if (!solo_enc)
1218                return ERR_PTR(-ENOMEM);
1219
1220        hdl = &solo_enc->hdl;
1221        v4l2_ctrl_handler_init(hdl, 10);
1222        v4l2_ctrl_new_std(hdl, &solo_ctrl_ops,
1223                        V4L2_CID_BRIGHTNESS, 0, 255, 1, 128);
1224        v4l2_ctrl_new_std(hdl, &solo_ctrl_ops,
1225                        V4L2_CID_CONTRAST, 0, 255, 1, 128);
1226        v4l2_ctrl_new_std(hdl, &solo_ctrl_ops,
1227                        V4L2_CID_SATURATION, 0, 255, 1, 128);
1228        v4l2_ctrl_new_std(hdl, &solo_ctrl_ops,
1229                        V4L2_CID_HUE, 0, 255, 1, 128);
1230        if (tw28_has_sharpness(solo_dev, ch))
1231                v4l2_ctrl_new_std(hdl, &solo_ctrl_ops,
1232                        V4L2_CID_SHARPNESS, 0, 15, 1, 0);
1233        v4l2_ctrl_new_std(hdl, &solo_ctrl_ops,
1234                        V4L2_CID_MPEG_VIDEO_GOP_SIZE, 1, 255, 1, solo_dev->fps);
1235        v4l2_ctrl_new_custom(hdl, &solo_motion_threshold_ctrl, NULL);
1236        v4l2_ctrl_new_custom(hdl, &solo_motion_enable_ctrl, NULL);
1237        v4l2_ctrl_new_custom(hdl, &solo_osd_text_ctrl, NULL);
1238        if (hdl->error) {
1239                ret = hdl->error;
1240                goto hdl_free;
1241        }
1242
1243        solo_enc->solo_dev = solo_dev;
1244        solo_enc->ch = ch;
1245        mutex_init(&solo_enc->lock);
1246        spin_lock_init(&solo_enc->av_lock);
1247        INIT_LIST_HEAD(&solo_enc->vidq_active);
1248        solo_enc->fmt = (solo_dev->type == SOLO_DEV_6010) ?
1249                V4L2_PIX_FMT_MPEG4 : V4L2_PIX_FMT_H264;
1250        solo_enc->type = SOLO_ENC_TYPE_STD;
1251
1252        solo_enc->qp = SOLO_DEFAULT_QP;
1253        solo_enc->gop = solo_dev->fps;
1254        solo_enc->interval = 1;
1255        solo_enc->mode = SOLO_ENC_MODE_CIF;
1256        solo_enc->motion_global = true;
1257        solo_enc->motion_thresh = SOLO_DEF_MOT_THRESH;
1258        for (y = 0; y < SOLO_MOTION_SZ; y++)
1259                for (x = 0; x < SOLO_MOTION_SZ; x++)
1260                        solo_enc->motion_thresholds.thresholds[y][x] =
1261                                                        SOLO_DEF_MOT_THRESH;
1262
1263        solo_enc->vidq.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
1264        solo_enc->vidq.io_modes = VB2_MMAP | VB2_USERPTR | VB2_READ;
1265        solo_enc->vidq.ops = &solo_enc_video_qops;
1266        solo_enc->vidq.mem_ops = &vb2_dma_sg_memops;
1267        solo_enc->vidq.drv_priv = solo_enc;
1268        solo_enc->vidq.gfp_flags = __GFP_DMA32;
1269        solo_enc->vidq.timestamp_type = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;
1270        solo_enc->vidq.buf_struct_size = sizeof(struct solo_vb2_buf);
1271        solo_enc->vidq.lock = &solo_enc->lock;
1272        ret = vb2_queue_init(&solo_enc->vidq);
1273        if (ret)
1274                goto hdl_free;
1275        solo_update_mode(solo_enc);
1276
1277        spin_lock_init(&solo_enc->motion_lock);
1278
1279        /* Initialize this per encoder */
1280        solo_enc->jpeg_len = sizeof(jpeg_header);
1281        memcpy(solo_enc->jpeg_header, jpeg_header, solo_enc->jpeg_len);
1282
1283        solo_enc->desc_nelts = 32;
1284        solo_enc->desc_items = pci_alloc_consistent(solo_dev->pdev,
1285                                      sizeof(struct solo_p2m_desc) *
1286                                      solo_enc->desc_nelts, &solo_enc->desc_dma);
1287        ret = -ENOMEM;
1288        if (solo_enc->desc_items == NULL)
1289                goto hdl_free;
1290
1291        solo_enc->vfd = video_device_alloc();
1292        if (!solo_enc->vfd)
1293                goto pci_free;
1294
1295        *solo_enc->vfd = solo_enc_template;
1296        solo_enc->vfd->v4l2_dev = &solo_dev->v4l2_dev;
1297        solo_enc->vfd->ctrl_handler = hdl;
1298        solo_enc->vfd->queue = &solo_enc->vidq;
1299        solo_enc->vfd->lock = &solo_enc->lock;
1300        set_bit(V4L2_FL_USE_FH_PRIO, &solo_enc->vfd->flags);
1301        video_set_drvdata(solo_enc->vfd, solo_enc);
1302        ret = video_register_device(solo_enc->vfd, VFL_TYPE_GRABBER, nr);
1303        if (ret < 0)
1304                goto vdev_release;
1305
1306        snprintf(solo_enc->vfd->name, sizeof(solo_enc->vfd->name),
1307                 "%s-enc (%i/%i)", SOLO6X10_NAME, solo_dev->vfd->num,
1308                 solo_enc->vfd->num);
1309
1310        return solo_enc;
1311
1312vdev_release:
1313        video_device_release(solo_enc->vfd);
1314pci_free:
1315        pci_free_consistent(solo_enc->solo_dev->pdev,
1316                        sizeof(struct solo_p2m_desc) * solo_enc->desc_nelts,
1317                        solo_enc->desc_items, solo_enc->desc_dma);
1318hdl_free:
1319        v4l2_ctrl_handler_free(hdl);
1320        kfree(solo_enc);
1321        return ERR_PTR(ret);
1322}
1323
1324static void solo_enc_free(struct solo_enc_dev *solo_enc)
1325{
1326        if (solo_enc == NULL)
1327                return;
1328
1329        video_unregister_device(solo_enc->vfd);
1330        v4l2_ctrl_handler_free(&solo_enc->hdl);
1331        kfree(solo_enc);
1332}
1333
1334int solo_enc_v4l2_init(struct solo_dev *solo_dev, unsigned nr)
1335{
1336        int i;
1337
1338        init_waitqueue_head(&solo_dev->ring_thread_wait);
1339
1340        solo_dev->vh_size = sizeof(struct vop_header);
1341        solo_dev->vh_buf = pci_alloc_consistent(solo_dev->pdev,
1342                                                solo_dev->vh_size,
1343                                                &solo_dev->vh_dma);
1344        if (solo_dev->vh_buf == NULL)
1345                return -ENOMEM;
1346
1347        for (i = 0; i < solo_dev->nr_chans; i++) {
1348                solo_dev->v4l2_enc[i] = solo_enc_alloc(solo_dev, i, nr);
1349                if (IS_ERR(solo_dev->v4l2_enc[i]))
1350                        break;
1351        }
1352
1353        if (i != solo_dev->nr_chans) {
1354                int ret = PTR_ERR(solo_dev->v4l2_enc[i]);
1355                while (i--)
1356                        solo_enc_free(solo_dev->v4l2_enc[i]);
1357                pci_free_consistent(solo_dev->pdev, solo_dev->vh_size,
1358                                    solo_dev->vh_buf, solo_dev->vh_dma);
1359                solo_dev->vh_buf = NULL;
1360                return ret;
1361        }
1362
1363        if (solo_dev->type == SOLO_DEV_6010)
1364                solo_dev->enc_bw_remain = solo_dev->fps * 4 * 4;
1365        else
1366                solo_dev->enc_bw_remain = solo_dev->fps * 4 * 5;
1367
1368        dev_info(&solo_dev->pdev->dev, "Encoders as /dev/video%d-%d\n",
1369                 solo_dev->v4l2_enc[0]->vfd->num,
1370                 solo_dev->v4l2_enc[solo_dev->nr_chans - 1]->vfd->num);
1371
1372        return 0;
1373}
1374
1375void solo_enc_v4l2_exit(struct solo_dev *solo_dev)
1376{
1377        int i;
1378
1379        for (i = 0; i < solo_dev->nr_chans; i++)
1380                solo_enc_free(solo_dev->v4l2_enc[i]);
1381
1382        if (solo_dev->vh_buf)
1383                pci_free_consistent(solo_dev->pdev, solo_dev->vh_size,
1384                            solo_dev->vh_buf, solo_dev->vh_dma);
1385}
1386