linux-bk/drivers/media/video/cx88/cx88-video.c
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   1/*
   2 * $Id: cx88-video.c,v 1.46 2004/11/07 14:44:59 kraxel Exp $
   3 *
   4 * device driver for Conexant 2388x based TV cards
   5 * video4linux video interface
   6 *
   7 * (c) 2003-04 Gerd Knorr <kraxel@bytesex.org> [SuSE Labs]
   8 *
   9 *  This program is free software; you can redistribute it and/or modify
  10 *  it under the terms of the GNU General Public License as published by
  11 *  the Free Software Foundation; either version 2 of the License, or
  12 *  (at your option) any later version.
  13 *
  14 *  This program is distributed in the hope that it will be useful,
  15 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  16 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17 *  GNU General Public License for more details.
  18 *
  19 *  You should have received a copy of the GNU General Public License
  20 *  along with this program; if not, write to the Free Software
  21 *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  22 */
  23
  24#include <linux/init.h>
  25#include <linux/list.h>
  26#include <linux/module.h>
  27#include <linux/kmod.h>
  28#include <linux/kernel.h>
  29#include <linux/slab.h>
  30#include <linux/interrupt.h>
  31#include <linux/delay.h>
  32#include <linux/kthread.h>
  33#include <asm/div64.h>
  34
  35#include "cx88.h"
  36
  37MODULE_DESCRIPTION("v4l2 driver module for cx2388x based TV cards");
  38MODULE_AUTHOR("Gerd Knorr <kraxel@bytesex.org> [SuSE Labs]");
  39MODULE_LICENSE("GPL");
  40
  41/* ------------------------------------------------------------------ */
  42
  43static unsigned int video_nr[] = {[0 ... (CX88_MAXBOARDS - 1)] = UNSET };
  44static unsigned int vbi_nr[]   = {[0 ... (CX88_MAXBOARDS - 1)] = UNSET };
  45static unsigned int radio_nr[] = {[0 ... (CX88_MAXBOARDS - 1)] = UNSET };
  46
  47module_param_array(video_nr, int, NULL, 0444);
  48module_param_array(vbi_nr,   int, NULL, 0444);
  49module_param_array(radio_nr, int, NULL, 0444);
  50
  51MODULE_PARM_DESC(video_nr,"video device numbers");
  52MODULE_PARM_DESC(vbi_nr,"vbi device numbers");
  53MODULE_PARM_DESC(radio_nr,"radio device numbers");
  54
  55static unsigned int video_debug = 0;
  56module_param(video_debug,int,0644);
  57MODULE_PARM_DESC(video_debug,"enable debug messages [video]");
  58
  59static unsigned int irq_debug = 0;
  60module_param(irq_debug,int,0644);
  61MODULE_PARM_DESC(irq_debug,"enable debug messages [IRQ handler]");
  62
  63static unsigned int vid_limit = 16;
  64module_param(vid_limit,int,0644);
  65MODULE_PARM_DESC(vid_limit,"capture memory limit in megabytes");
  66
  67#define dprintk(level,fmt, arg...)      if (video_debug >= level) \
  68        printk(KERN_DEBUG "%s/0: " fmt, dev->core->name , ## arg)
  69
  70/* ------------------------------------------------------------------ */
  71
  72static LIST_HEAD(cx8800_devlist);
  73
  74/* ------------------------------------------------------------------- */
  75/* static data                                                         */
  76
  77static struct cx88_tvnorm tvnorms[] = {
  78        {
  79                .name      = "NTSC-M",
  80                .id        = V4L2_STD_NTSC_M,
  81                .cxiformat = VideoFormatNTSC,
  82                .cxoformat = 0x181f0008,
  83        },{
  84                .name      = "NTSC-JP",
  85                .id        = V4L2_STD_NTSC_M_JP,
  86                .cxiformat = VideoFormatNTSCJapan,
  87                .cxoformat = 0x181f0008,
  88#if 0
  89        },{
  90                .name      = "NTSC-4.43",
  91                .id        = FIXME,
  92                .cxiformat = VideoFormatNTSC443,
  93                .cxoformat = 0x181f0008,
  94#endif
  95        },{
  96                .name      = "PAL-BG",
  97                .id        = V4L2_STD_PAL_BG,
  98                .cxiformat = VideoFormatPAL,
  99                .cxoformat = 0x181f0008,
 100        },{
 101                .name      = "PAL-DK",
 102                .id        = V4L2_STD_PAL_DK,
 103                .cxiformat = VideoFormatPAL,
 104                .cxoformat = 0x181f0008,
 105        },{
 106                .name      = "PAL-I",
 107                .id        = V4L2_STD_PAL_I,
 108                .cxiformat = VideoFormatPAL,
 109                .cxoformat = 0x181f0008,
 110        },{
 111                .name      = "PAL-M",
 112                .id        = V4L2_STD_PAL_M,
 113                .cxiformat = VideoFormatPALM,
 114                .cxoformat = 0x1c1f0008,
 115        },{
 116                .name      = "PAL-N",
 117                .id        = V4L2_STD_PAL_N,
 118                .cxiformat = VideoFormatPALN,
 119                .cxoformat = 0x1c1f0008,
 120        },{
 121                .name      = "PAL-Nc",
 122                .id        = V4L2_STD_PAL_Nc,
 123                .cxiformat = VideoFormatPALNC,
 124                .cxoformat = 0x1c1f0008,
 125        },{
 126                .name      = "PAL-60",
 127                .id        = V4L2_STD_PAL_60,
 128                .cxiformat = VideoFormatPAL60,
 129                .cxoformat = 0x181f0008,
 130        },{
 131                .name      = "SECAM-L",
 132                .id        = V4L2_STD_SECAM_L,
 133                .cxiformat = VideoFormatSECAM,
 134                .cxoformat = 0x181f0008,
 135        },{
 136                .name      = "SECAM-DK",
 137                .id        = V4L2_STD_SECAM_DK,
 138                .cxiformat = VideoFormatSECAM,
 139                .cxoformat = 0x181f0008,
 140        }
 141};
 142
 143static struct cx8800_fmt formats[] = {
 144        {
 145                .name     = "8 bpp, gray",
 146                .fourcc   = V4L2_PIX_FMT_GREY,
 147                .cxformat = ColorFormatY8,
 148                .depth    = 8,
 149                .flags    = FORMAT_FLAGS_PACKED,
 150        },{
 151                .name     = "15 bpp RGB, le",
 152                .fourcc   = V4L2_PIX_FMT_RGB555,
 153                .cxformat = ColorFormatRGB15,
 154                .depth    = 16,
 155                .flags    = FORMAT_FLAGS_PACKED,
 156        },{
 157                .name     = "15 bpp RGB, be",
 158                .fourcc   = V4L2_PIX_FMT_RGB555X,
 159                .cxformat = ColorFormatRGB15 | ColorFormatBSWAP,
 160                .depth    = 16,
 161                .flags    = FORMAT_FLAGS_PACKED,
 162        },{
 163                .name     = "16 bpp RGB, le",
 164                .fourcc   = V4L2_PIX_FMT_RGB565,
 165                .cxformat = ColorFormatRGB16,
 166                .depth    = 16,
 167                .flags    = FORMAT_FLAGS_PACKED,
 168        },{
 169                .name     = "16 bpp RGB, be",
 170                .fourcc   = V4L2_PIX_FMT_RGB565X,
 171                .cxformat = ColorFormatRGB16 | ColorFormatBSWAP,
 172                .depth    = 16,
 173                .flags    = FORMAT_FLAGS_PACKED,
 174        },{
 175                .name     = "24 bpp RGB, le",
 176                .fourcc   = V4L2_PIX_FMT_BGR24,
 177                .cxformat = ColorFormatRGB24,
 178                .depth    = 24,
 179                .flags    = FORMAT_FLAGS_PACKED,
 180        },{
 181                .name     = "32 bpp RGB, le",
 182                .fourcc   = V4L2_PIX_FMT_BGR32,
 183                .cxformat = ColorFormatRGB32,
 184                .depth    = 32,
 185                .flags    = FORMAT_FLAGS_PACKED,
 186        },{
 187                .name     = "32 bpp RGB, be",
 188                .fourcc   = V4L2_PIX_FMT_RGB32,
 189                .cxformat = ColorFormatRGB32 | ColorFormatBSWAP | ColorFormatWSWAP,
 190                .depth    = 32,
 191                .flags    = FORMAT_FLAGS_PACKED,
 192        },{
 193                .name     = "4:2:2, packed, YUYV",
 194                .fourcc   = V4L2_PIX_FMT_YUYV,
 195                .cxformat = ColorFormatYUY2,
 196                .depth    = 16,
 197                .flags    = FORMAT_FLAGS_PACKED,
 198        },{
 199                .name     = "4:2:2, packed, UYVY",
 200                .fourcc   = V4L2_PIX_FMT_UYVY,
 201                .cxformat = ColorFormatYUY2 | ColorFormatBSWAP,
 202                .depth    = 16,
 203                .flags    = FORMAT_FLAGS_PACKED,
 204        },
 205};
 206
 207static struct cx8800_fmt* format_by_fourcc(unsigned int fourcc)
 208{
 209        unsigned int i;
 210
 211        for (i = 0; i < ARRAY_SIZE(formats); i++)
 212                if (formats[i].fourcc == fourcc)
 213                        return formats+i;
 214        return NULL;
 215}
 216
 217/* ------------------------------------------------------------------- */
 218
 219static const struct v4l2_queryctrl no_ctl = {
 220        .name  = "42",
 221        .flags = V4L2_CTRL_FLAG_DISABLED,
 222};
 223
 224static struct cx88_ctrl cx8800_ctls[] = {
 225        /* --- video --- */
 226        {
 227                .v = {
 228                        .id            = V4L2_CID_BRIGHTNESS,
 229                        .name          = "Brightness",
 230                        .minimum       = 0x00,
 231                        .maximum       = 0xff,
 232                        .step          = 1,
 233                        .default_value = 0,
 234                        .type          = V4L2_CTRL_TYPE_INTEGER,
 235                },
 236                .off                   = 128,
 237                .reg                   = MO_CONTR_BRIGHT,
 238                .mask                  = 0x00ff,
 239                .shift                 = 0,
 240        },{
 241                .v = {
 242                        .id            = V4L2_CID_CONTRAST,
 243                        .name          = "Contrast",
 244                        .minimum       = 0,
 245                        .maximum       = 0xff,
 246                        .step          = 1,
 247                        .default_value = 0,
 248                        .type          = V4L2_CTRL_TYPE_INTEGER,
 249                },
 250                .reg                   = MO_CONTR_BRIGHT,
 251                .mask                  = 0xff00,
 252                .shift                 = 8,
 253        },{
 254                .v = {
 255                        .id            = V4L2_CID_HUE,
 256                        .name          = "Hue",
 257                        .minimum       = 0,
 258                        .maximum       = 0xff,
 259                        .step          = 1,
 260                        .default_value = 0,
 261                        .type          = V4L2_CTRL_TYPE_INTEGER,
 262                },
 263                .off                   = 0,
 264                .reg                   = MO_HUE,
 265                .mask                  = 0x00ff,
 266                .shift                 = 0,
 267        },{
 268                /* strictly, this only describes only U saturation.
 269                 * V saturation is handled specially through code.
 270                 */
 271                .v = {
 272                        .id            = V4L2_CID_SATURATION,
 273                        .name          = "Saturation",
 274                        .minimum       = 0,
 275                        .maximum       = 0xff,
 276                        .step          = 1,
 277                        .default_value = 0,
 278                        .type          = V4L2_CTRL_TYPE_INTEGER,
 279                },
 280                .off                   = 0,
 281                .reg                   = MO_UV_SATURATION,
 282                .mask                  = 0x00ff,
 283                .shift                 = 0,
 284        },{
 285        /* --- audio --- */
 286                .v = {
 287                        .id            = V4L2_CID_AUDIO_MUTE,
 288                        .name          = "Mute",
 289                        .minimum       = 0,
 290                        .maximum       = 1,
 291                        .type          = V4L2_CTRL_TYPE_BOOLEAN,
 292                },
 293                .reg                   = AUD_VOL_CTL,
 294                .sreg                  = SHADOW_AUD_VOL_CTL,
 295                .mask                  = (1 << 6),
 296                .shift                 = 6,
 297        },{
 298                .v = {
 299                        .id            = V4L2_CID_AUDIO_VOLUME,
 300                        .name          = "Volume",
 301                        .minimum       = 0,
 302                        .maximum       = 0x3f,
 303                        .step          = 1,
 304                        .default_value = 0,
 305                        .type          = V4L2_CTRL_TYPE_INTEGER,
 306                },
 307                .reg                   = AUD_VOL_CTL,
 308                .sreg                  = SHADOW_AUD_VOL_CTL,
 309                .mask                  = 0x3f,
 310                .shift                 = 0,
 311        },{
 312                .v = {
 313                        .id            = V4L2_CID_AUDIO_BALANCE,
 314                        .name          = "Balance",
 315                        .minimum       = 0,
 316                        .maximum       = 0x7f,
 317                        .step          = 1,
 318                        .default_value = 0x40,
 319                        .type          = V4L2_CTRL_TYPE_INTEGER,
 320                },
 321                .reg                   = AUD_BAL_CTL,
 322                .sreg                  = SHADOW_AUD_BAL_CTL,
 323                .mask                  = 0x7f,
 324                .shift                 = 0,
 325        }
 326};
 327const int CX8800_CTLS = ARRAY_SIZE(cx8800_ctls);
 328
 329/* ------------------------------------------------------------------- */
 330/* resource management                                                 */
 331
 332static int res_get(struct cx8800_dev *dev, struct cx8800_fh *fh, unsigned int bit)
 333{
 334        if (fh->resources & bit)
 335                /* have it already allocated */
 336                return 1;
 337
 338        /* is it free? */
 339        down(&dev->lock);
 340        if (dev->resources & bit) {
 341                /* no, someone else uses it */
 342                up(&dev->lock);
 343                return 0;
 344        }
 345        /* it's free, grab it */
 346        fh->resources  |= bit;
 347        dev->resources |= bit;
 348        dprintk(1,"res: get %d\n",bit);
 349        up(&dev->lock);
 350        return 1;
 351}
 352
 353static
 354int res_check(struct cx8800_fh *fh, unsigned int bit)
 355{
 356        return (fh->resources & bit);
 357}
 358
 359static
 360int res_locked(struct cx8800_dev *dev, unsigned int bit)
 361{
 362        return (dev->resources & bit);
 363}
 364
 365static
 366void res_free(struct cx8800_dev *dev, struct cx8800_fh *fh, unsigned int bits)
 367{
 368        if ((fh->resources & bits) != bits)
 369                BUG();
 370
 371        down(&dev->lock);
 372        fh->resources  &= ~bits;
 373        dev->resources &= ~bits;
 374        dprintk(1,"res: put %d\n",bits);
 375        up(&dev->lock);
 376}
 377
 378/* ------------------------------------------------------------------ */
 379
 380static int video_mux(struct cx8800_dev *dev, unsigned int input)
 381{
 382        struct cx88_core *core = dev->core;
 383
 384        dprintk(1,"video_mux: %d [vmux=%d,gpio=0x%x,0x%x,0x%x,0x%x]\n",
 385                input, INPUT(input)->vmux,
 386                INPUT(input)->gpio0,INPUT(input)->gpio1,
 387                INPUT(input)->gpio2,INPUT(input)->gpio3);
 388        dev->core->input = input;
 389        cx_andor(MO_INPUT_FORMAT, 0x03 << 14, INPUT(input)->vmux << 14);
 390        cx_write(MO_GP3_IO, INPUT(input)->gpio3);
 391        cx_write(MO_GP0_IO, INPUT(input)->gpio0);
 392        cx_write(MO_GP1_IO, INPUT(input)->gpio1);
 393        cx_write(MO_GP2_IO, INPUT(input)->gpio2);
 394
 395        switch (INPUT(input)->type) {
 396        case CX88_VMUX_SVIDEO:
 397                cx_set(MO_AFECFG_IO,    0x00000001);
 398                cx_set(MO_INPUT_FORMAT, 0x00010010);
 399                cx_set(MO_FILTER_EVEN,  0x00002020);
 400                cx_set(MO_FILTER_ODD,   0x00002020);
 401                break;
 402        default:
 403                cx_clear(MO_AFECFG_IO,    0x00000001);
 404                cx_clear(MO_INPUT_FORMAT, 0x00010010);
 405                cx_clear(MO_FILTER_EVEN,  0x00002020);
 406                cx_clear(MO_FILTER_ODD,   0x00002020);
 407                break;
 408        }
 409        return 0;
 410}
 411
 412/* ------------------------------------------------------------------ */
 413
 414static int start_video_dma(struct cx8800_dev    *dev,
 415                           struct cx88_dmaqueue *q,
 416                           struct cx88_buffer   *buf)
 417{
 418        struct cx88_core *core = dev->core;
 419
 420        /* setup fifo + format */
 421        cx88_sram_channel_setup(dev->core, &cx88_sram_channels[SRAM_CH21],
 422                                buf->bpl, buf->risc.dma);
 423        cx88_set_scale(dev->core, buf->vb.width, buf->vb.height, buf->vb.field);
 424        cx_write(MO_COLOR_CTRL, buf->fmt->cxformat | ColorFormatGamma);
 425
 426        /* reset counter */
 427        cx_write(MO_VIDY_GPCNTRL,GP_COUNT_CONTROL_RESET);
 428        q->count = 1;
 429
 430        /* enable irqs */
 431        cx_set(MO_PCI_INTMSK, 0x00fc01);
 432        cx_set(MO_VID_INTMSK, 0x0f0011);
 433
 434        /* enable capture */
 435        cx_set(VID_CAPTURE_CONTROL,0x06);
 436
 437        /* start dma */
 438        cx_set(MO_DEV_CNTRL2, (1<<5));
 439        cx_set(MO_VID_DMACNTRL, 0x11);
 440
 441        return 0;
 442}
 443
 444static int stop_video_dma(struct cx8800_dev    *dev)
 445{
 446        struct cx88_core *core = dev->core;
 447
 448        /* stop dma */
 449        cx_clear(MO_VID_DMACNTRL, 0x11);
 450
 451        /* disable capture */
 452        cx_clear(VID_CAPTURE_CONTROL,0x06);
 453
 454        /* disable irqs */
 455        cx_clear(MO_PCI_INTMSK, 0x000001);
 456        cx_clear(MO_VID_INTMSK, 0x0f0011);
 457        return 0;
 458}
 459
 460static int restart_video_queue(struct cx8800_dev    *dev,
 461                               struct cx88_dmaqueue *q)
 462{
 463        struct cx88_buffer *buf, *prev;
 464        struct list_head *item;
 465
 466        if (!list_empty(&q->active)) {
 467                buf = list_entry(q->active.next, struct cx88_buffer, vb.queue);
 468                dprintk(2,"restart_queue [%p/%d]: restart dma\n",
 469                        buf, buf->vb.i);
 470                start_video_dma(dev, q, buf);
 471                list_for_each(item,&q->active) {
 472                        buf = list_entry(item, struct cx88_buffer, vb.queue);
 473                        buf->count    = q->count++;
 474                }
 475                mod_timer(&q->timeout, jiffies+BUFFER_TIMEOUT);
 476                return 0;
 477        }
 478
 479        prev = NULL;
 480        for (;;) {
 481                if (list_empty(&q->queued))
 482                        return 0;
 483                buf = list_entry(q->queued.next, struct cx88_buffer, vb.queue);
 484                if (NULL == prev) {
 485                        list_del(&buf->vb.queue);
 486                        list_add_tail(&buf->vb.queue,&q->active);
 487                        start_video_dma(dev, q, buf);
 488                        buf->vb.state = STATE_ACTIVE;
 489                        buf->count    = q->count++;
 490                        mod_timer(&q->timeout, jiffies+BUFFER_TIMEOUT);
 491                        dprintk(2,"[%p/%d] restart_queue - first active\n",
 492                                buf,buf->vb.i);
 493
 494                } else if (prev->vb.width  == buf->vb.width  &&
 495                           prev->vb.height == buf->vb.height &&
 496                           prev->fmt       == buf->fmt) {
 497                        list_del(&buf->vb.queue);
 498                        list_add_tail(&buf->vb.queue,&q->active);
 499                        buf->vb.state = STATE_ACTIVE;
 500                        buf->count    = q->count++;
 501                        prev->risc.jmp[1] = cpu_to_le32(buf->risc.dma);
 502                        dprintk(2,"[%p/%d] restart_queue - move to active\n",
 503                                buf,buf->vb.i);
 504                } else {
 505                        return 0;
 506                }
 507                prev = buf;
 508        }
 509}
 510
 511/* ------------------------------------------------------------------ */
 512
 513static int
 514buffer_setup(struct videobuf_queue *q, unsigned int *count, unsigned int *size)
 515{
 516        struct cx8800_fh *fh = q->priv_data;
 517
 518        *size = fh->fmt->depth*fh->width*fh->height >> 3;
 519        if (0 == *count)
 520                *count = 32;
 521        while (*size * *count > vid_limit * 1024 * 1024)
 522                (*count)--;
 523        return 0;
 524}
 525
 526static int
 527buffer_prepare(struct videobuf_queue *q, struct videobuf_buffer *vb,
 528               enum v4l2_field field)
 529{
 530        struct cx8800_fh   *fh  = q->priv_data;
 531        struct cx8800_dev  *dev = fh->dev;
 532        struct cx88_buffer *buf = container_of(vb,struct cx88_buffer,vb);
 533        int rc, init_buffer = 0;
 534
 535        BUG_ON(NULL == fh->fmt);
 536        if (fh->width  < 48 || fh->width  > norm_maxw(dev->core->tvnorm) ||
 537            fh->height < 32 || fh->height > norm_maxh(dev->core->tvnorm))
 538                return -EINVAL;
 539        buf->vb.size = (fh->width * fh->height * fh->fmt->depth) >> 3;
 540        if (0 != buf->vb.baddr  &&  buf->vb.bsize < buf->vb.size)
 541                return -EINVAL;
 542
 543        if (buf->fmt       != fh->fmt    ||
 544            buf->vb.width  != fh->width  ||
 545            buf->vb.height != fh->height ||
 546            buf->vb.field  != field) {
 547                buf->fmt       = fh->fmt;
 548                buf->vb.width  = fh->width;
 549                buf->vb.height = fh->height;
 550                buf->vb.field  = field;
 551                init_buffer = 1;
 552        }
 553
 554        if (STATE_NEEDS_INIT == buf->vb.state) {
 555                init_buffer = 1;
 556                if (0 != (rc = videobuf_iolock(dev->pci,&buf->vb,NULL)))
 557                        goto fail;
 558        }
 559
 560        if (init_buffer) {
 561                buf->bpl = buf->vb.width * buf->fmt->depth >> 3;
 562                switch (buf->vb.field) {
 563                case V4L2_FIELD_TOP:
 564                        cx88_risc_buffer(dev->pci, &buf->risc,
 565                                         buf->vb.dma.sglist, 0, UNSET,
 566                                         buf->bpl, 0, buf->vb.height);
 567                        break;
 568                case V4L2_FIELD_BOTTOM:
 569                        cx88_risc_buffer(dev->pci, &buf->risc,
 570                                         buf->vb.dma.sglist, UNSET, 0,
 571                                         buf->bpl, 0, buf->vb.height);
 572                        break;
 573                case V4L2_FIELD_INTERLACED:
 574                        cx88_risc_buffer(dev->pci, &buf->risc,
 575                                         buf->vb.dma.sglist, 0, buf->bpl,
 576                                         buf->bpl, buf->bpl,
 577                                         buf->vb.height >> 1);
 578                        break;
 579                case V4L2_FIELD_SEQ_TB:
 580                        cx88_risc_buffer(dev->pci, &buf->risc,
 581                                         buf->vb.dma.sglist,
 582                                         0, buf->bpl * (buf->vb.height >> 1),
 583                                         buf->bpl, 0,
 584                                         buf->vb.height >> 1);
 585                        break;
 586                case V4L2_FIELD_SEQ_BT:
 587                        cx88_risc_buffer(dev->pci, &buf->risc,
 588                                         buf->vb.dma.sglist,
 589                                         buf->bpl * (buf->vb.height >> 1), 0,
 590                                         buf->bpl, 0,
 591                                         buf->vb.height >> 1);
 592                        break;
 593                default:
 594                        BUG();
 595                }
 596        }
 597        dprintk(2,"[%p/%d] buffer_prepare - %dx%d %dbpp \"%s\" - dma=0x%08lx\n",
 598                buf, buf->vb.i,
 599                fh->width, fh->height, fh->fmt->depth, fh->fmt->name,
 600                (unsigned long)buf->risc.dma);
 601
 602        buf->vb.state = STATE_PREPARED;
 603        return 0;
 604
 605 fail:
 606        cx88_free_buffer(dev->pci,buf);
 607        return rc;
 608}
 609
 610static void
 611buffer_queue(struct videobuf_queue *vq, struct videobuf_buffer *vb)
 612{
 613        struct cx88_buffer    *buf = container_of(vb,struct cx88_buffer,vb);
 614        struct cx88_buffer    *prev;
 615        struct cx8800_fh      *fh   = vq->priv_data;
 616        struct cx8800_dev     *dev  = fh->dev;
 617        struct cx88_dmaqueue  *q    = &dev->vidq;
 618
 619        /* add jump to stopper */
 620        buf->risc.jmp[0] = cpu_to_le32(RISC_JUMP | RISC_IRQ1 | RISC_CNT_INC);
 621        buf->risc.jmp[1] = cpu_to_le32(q->stopper.dma);
 622
 623        if (!list_empty(&q->queued)) {
 624                list_add_tail(&buf->vb.queue,&q->queued);
 625                buf->vb.state = STATE_QUEUED;
 626                dprintk(2,"[%p/%d] buffer_queue - append to queued\n",
 627                        buf, buf->vb.i);
 628
 629        } else if (list_empty(&q->active)) {
 630                list_add_tail(&buf->vb.queue,&q->active);
 631                start_video_dma(dev, q, buf);
 632                buf->vb.state = STATE_ACTIVE;
 633                buf->count    = q->count++;
 634                mod_timer(&q->timeout, jiffies+BUFFER_TIMEOUT);
 635                dprintk(2,"[%p/%d] buffer_queue - first active\n",
 636                        buf, buf->vb.i);
 637
 638        } else {
 639                prev = list_entry(q->active.prev, struct cx88_buffer, vb.queue);
 640                if (prev->vb.width  == buf->vb.width  &&
 641                    prev->vb.height == buf->vb.height &&
 642                    prev->fmt       == buf->fmt) {
 643                        list_add_tail(&buf->vb.queue,&q->active);
 644                        buf->vb.state = STATE_ACTIVE;
 645                        buf->count    = q->count++;
 646                        prev->risc.jmp[1] = cpu_to_le32(buf->risc.dma);
 647                        dprintk(2,"[%p/%d] buffer_queue - append to active\n",
 648                                buf, buf->vb.i);
 649
 650                } else {
 651                        list_add_tail(&buf->vb.queue,&q->queued);
 652                        buf->vb.state = STATE_QUEUED;
 653                        dprintk(2,"[%p/%d] buffer_queue - first queued\n",
 654                                buf, buf->vb.i);
 655                }
 656        }
 657}
 658
 659static void buffer_release(struct videobuf_queue *q, struct videobuf_buffer *vb)
 660{
 661        struct cx88_buffer *buf = container_of(vb,struct cx88_buffer,vb);
 662        struct cx8800_fh   *fh  = q->priv_data;
 663
 664        cx88_free_buffer(fh->dev->pci,buf);
 665}
 666
 667struct videobuf_queue_ops cx8800_video_qops = {
 668        .buf_setup    = buffer_setup,
 669        .buf_prepare  = buffer_prepare,
 670        .buf_queue    = buffer_queue,
 671        .buf_release  = buffer_release,
 672};
 673
 674/* ------------------------------------------------------------------ */
 675
 676#if 0 /* overlay support not finished yet */
 677static u32* ov_risc_field(struct cx8800_dev *dev, struct cx8800_fh *fh,
 678                          u32 *rp, struct btcx_skiplist *skips,
 679                          u32 sync_line, int skip_even, int skip_odd)
 680{
 681        int line,maxy,start,end,skip,nskips;
 682        u32 ri,ra;
 683        u32 addr;
 684
 685        /* sync instruction */
 686        *(rp++) = cpu_to_le32(RISC_RESYNC | sync_line);
 687
 688        addr  = (unsigned long)dev->fbuf.base;
 689        addr += dev->fbuf.fmt.bytesperline * fh->win.w.top;
 690        addr += (fh->fmt->depth >> 3)      * fh->win.w.left;
 691
 692        /* scan lines */
 693        for (maxy = -1, line = 0; line < fh->win.w.height;
 694             line++, addr += dev->fbuf.fmt.bytesperline) {
 695                if ((line%2) == 0  &&  skip_even)
 696                        continue;
 697                if ((line%2) == 1  &&  skip_odd)
 698                        continue;
 699
 700                /* calculate clipping */
 701                if (line > maxy)
 702                        btcx_calc_skips(line, fh->win.w.width, &maxy,
 703                                        skips, &nskips, fh->clips, fh->nclips);
 704
 705                /* write out risc code */
 706                for (start = 0, skip = 0; start < fh->win.w.width; start = end) {
 707                        if (skip >= nskips) {
 708                                ri  = RISC_WRITE;
 709                                end = fh->win.w.width;
 710                        } else if (start < skips[skip].start) {
 711                                ri  = RISC_WRITE;
 712                                end = skips[skip].start;
 713                        } else {
 714                                ri  = RISC_SKIP;
 715                                end = skips[skip].end;
 716                                skip++;
 717                        }
 718                        if (RISC_WRITE == ri)
 719                                ra = addr + (fh->fmt->depth>>3)*start;
 720                        else
 721                                ra = 0;
 722
 723                        if (0 == start)
 724                                ri |= RISC_SOL;
 725                        if (fh->win.w.width == end)
 726                                ri |= RISC_EOL;
 727                        ri |= (fh->fmt->depth>>3) * (end-start);
 728
 729                        *(rp++)=cpu_to_le32(ri);
 730                        if (0 != ra)
 731                                *(rp++)=cpu_to_le32(ra);
 732                }
 733        }
 734        kfree(skips);
 735        return rp;
 736}
 737
 738static int ov_risc_frame(struct cx8800_dev *dev, struct cx8800_fh *fh,
 739                         struct cx88_buffer *buf)
 740{
 741        struct btcx_skiplist *skips;
 742        u32 instructions,fields;
 743        u32 *rp;
 744        int rc;
 745
 746        /* skip list for window clipping */
 747        if (NULL == (skips = kmalloc(sizeof(*skips) * fh->nclips,GFP_KERNEL)))
 748                return -ENOMEM;
 749
 750        fields = 0;
 751        if (V4L2_FIELD_HAS_TOP(fh->win.field))
 752                fields++;
 753        if (V4L2_FIELD_HAS_BOTTOM(fh->win.field))
 754                fields++;
 755
 756        /* estimate risc mem: worst case is (clip+1) * lines instructions
 757           + syncs + jump (all 2 dwords) */
 758        instructions  = (fh->nclips+1) * fh->win.w.height;
 759        instructions += 3 + 4;
 760        if ((rc = btcx_riscmem_alloc(dev->pci,&buf->risc,instructions*8)) < 0) {
 761                kfree(skips);
 762                return rc;
 763        }
 764
 765        /* write risc instructions */
 766        rp = buf->risc.cpu;
 767        switch (fh->win.field) {
 768        case V4L2_FIELD_TOP:
 769                rp = ov_risc_field(dev, fh, rp, skips, 0,     0, 0);
 770                break;
 771        case V4L2_FIELD_BOTTOM:
 772                rp = ov_risc_field(dev, fh, rp, skips, 0x200, 0, 0);
 773                break;
 774        case V4L2_FIELD_INTERLACED:
 775                rp = ov_risc_field(dev, fh, rp, skips, 0,     0, 1);
 776                rp = ov_risc_field(dev, fh, rp, skips, 0x200, 1, 0);
 777                break;
 778        default:
 779                BUG();
 780        }
 781
 782        /* save pointer to jmp instruction address */
 783        buf->risc.jmp = rp;
 784        kfree(skips);
 785        return 0;
 786}
 787
 788static int verify_window(struct cx8800_dev *dev, struct v4l2_window *win)
 789{
 790        enum v4l2_field field;
 791        int maxw, maxh;
 792
 793        if (NULL == dev->fbuf.base)
 794                return -EINVAL;
 795        if (win->w.width < 48 || win->w.height <  32)
 796                return -EINVAL;
 797        if (win->clipcount > 2048)
 798                return -EINVAL;
 799
 800        field = win->field;
 801        maxw  = norm_maxw(core->tvnorm);
 802        maxh  = norm_maxh(core->tvnorm);
 803
 804        if (V4L2_FIELD_ANY == field) {
 805                field = (win->w.height > maxh/2)
 806                        ? V4L2_FIELD_INTERLACED
 807                        : V4L2_FIELD_TOP;
 808        }
 809        switch (field) {
 810        case V4L2_FIELD_TOP:
 811        case V4L2_FIELD_BOTTOM:
 812                maxh = maxh / 2;
 813                break;
 814        case V4L2_FIELD_INTERLACED:
 815                break;
 816        default:
 817                return -EINVAL;
 818        }
 819
 820        win->field = field;
 821        if (win->w.width > maxw)
 822                win->w.width = maxw;
 823        if (win->w.height > maxh)
 824                win->w.height = maxh;
 825        return 0;
 826}
 827
 828static int setup_window(struct cx8800_dev *dev, struct cx8800_fh *fh,
 829                        struct v4l2_window *win)
 830{
 831        struct v4l2_clip *clips = NULL;
 832        int n,size,retval = 0;
 833
 834        if (NULL == fh->fmt)
 835                return -EINVAL;
 836        retval = verify_window(dev,win);
 837        if (0 != retval)
 838                return retval;
 839
 840        /* copy clips  --  luckily v4l1 + v4l2 are binary
 841           compatible here ...*/
 842        n = win->clipcount;
 843        size = sizeof(*clips)*(n+4);
 844        clips = kmalloc(size,GFP_KERNEL);
 845        if (NULL == clips)
 846                return -ENOMEM;
 847        if (n > 0) {
 848                if (copy_from_user(clips,win->clips,sizeof(struct v4l2_clip)*n)) {
 849                        kfree(clips);
 850                        return -EFAULT;
 851                }
 852        }
 853
 854        /* clip against screen */
 855        if (NULL != dev->fbuf.base)
 856                n = btcx_screen_clips(dev->fbuf.fmt.width, dev->fbuf.fmt.height,
 857                                      &win->w, clips, n);
 858        btcx_sort_clips(clips,n);
 859
 860        /* 4-byte alignments */
 861        switch (fh->fmt->depth) {
 862        case 8:
 863        case 24:
 864                btcx_align(&win->w, clips, n, 3);
 865                break;
 866        case 16:
 867                btcx_align(&win->w, clips, n, 1);
 868                break;
 869        case 32:
 870                /* no alignment fixups needed */
 871                break;
 872        default:
 873                BUG();
 874        }
 875
 876        down(&fh->vidq.lock);
 877        if (fh->clips)
 878                kfree(fh->clips);
 879        fh->clips    = clips;
 880        fh->nclips   = n;
 881        fh->win      = *win;
 882#if 0
 883        fh->ov.setup_ok = 1;
 884#endif
 885
 886        /* update overlay if needed */
 887        retval = 0;
 888#if 0
 889        if (check_btres(fh, RESOURCE_OVERLAY)) {
 890                struct bttv_buffer *new;
 891
 892                new = videobuf_alloc(sizeof(*new));
 893                bttv_overlay_risc(btv, &fh->ov, fh->ovfmt, new);
 894                retval = bttv_switch_overlay(btv,fh,new);
 895        }
 896#endif
 897        up(&fh->vidq.lock);
 898        return retval;
 899}
 900#endif
 901
 902/* ------------------------------------------------------------------ */
 903
 904static struct videobuf_queue* get_queue(struct cx8800_fh *fh)
 905{
 906        switch (fh->type) {
 907        case V4L2_BUF_TYPE_VIDEO_CAPTURE:
 908                return &fh->vidq;
 909        case V4L2_BUF_TYPE_VBI_CAPTURE:
 910                return &fh->vbiq;
 911        default:
 912                BUG();
 913                return NULL;
 914        }
 915}
 916
 917static int get_ressource(struct cx8800_fh *fh)
 918{
 919        switch (fh->type) {
 920        case V4L2_BUF_TYPE_VIDEO_CAPTURE:
 921                return RESOURCE_VIDEO;
 922        case V4L2_BUF_TYPE_VBI_CAPTURE:
 923                return RESOURCE_VBI;
 924        default:
 925                BUG();
 926                return 0;
 927        }
 928}
 929
 930static int video_open(struct inode *inode, struct file *file)
 931{
 932        int minor = iminor(inode);
 933        struct cx8800_dev *h,*dev = NULL;
 934        struct cx8800_fh *fh;
 935        struct list_head *list;
 936        enum v4l2_buf_type type = 0;
 937        int radio = 0;
 938
 939        list_for_each(list,&cx8800_devlist) {
 940                h = list_entry(list, struct cx8800_dev, devlist);
 941                if (h->video_dev->minor == minor) {
 942                        dev  = h;
 943                        type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
 944                }
 945                if (h->vbi_dev->minor == minor) {
 946                        dev  = h;
 947                        type = V4L2_BUF_TYPE_VBI_CAPTURE;
 948                }
 949                if (h->radio_dev &&
 950                    h->radio_dev->minor == minor) {
 951                        radio = 1;
 952                        dev   = h;
 953                }
 954        }
 955        if (NULL == dev)
 956                return -ENODEV;
 957
 958        dprintk(1,"open minor=%d radio=%d type=%s\n",
 959                minor,radio,v4l2_type_names[type]);
 960
 961        /* allocate + initialize per filehandle data */
 962        fh = kmalloc(sizeof(*fh),GFP_KERNEL);
 963        if (NULL == fh)
 964                return -ENOMEM;
 965        memset(fh,0,sizeof(*fh));
 966        file->private_data = fh;
 967        fh->dev      = dev;
 968        fh->radio    = radio;
 969        fh->type     = type;
 970        fh->width    = 320;
 971        fh->height   = 240;
 972        fh->fmt      = format_by_fourcc(V4L2_PIX_FMT_BGR24);
 973
 974        videobuf_queue_init(&fh->vidq, &cx8800_video_qops,
 975                            dev->pci, &dev->slock,
 976                            V4L2_BUF_TYPE_VIDEO_CAPTURE,
 977                            V4L2_FIELD_INTERLACED,
 978                            sizeof(struct cx88_buffer),
 979                            fh);
 980        videobuf_queue_init(&fh->vbiq, &cx8800_vbi_qops,
 981                            dev->pci, &dev->slock,
 982                            V4L2_BUF_TYPE_VBI_CAPTURE,
 983                            V4L2_FIELD_SEQ_TB,
 984                            sizeof(struct cx88_buffer),
 985                            fh);
 986
 987        if (fh->radio) {
 988                struct cx88_core *core = dev->core;
 989                int board = core->board;
 990                dprintk(1,"video_open: setting radio device\n");
 991                cx_write(MO_GP0_IO, cx88_boards[board].radio.gpio0);
 992                cx_write(MO_GP1_IO, cx88_boards[board].radio.gpio1);
 993                cx_write(MO_GP2_IO, cx88_boards[board].radio.gpio2);
 994                cx_write(MO_GP3_IO, cx88_boards[board].radio.gpio3);
 995                dev->core->tvaudio = WW_FM;
 996                cx88_set_tvaudio(core);
 997                cx88_set_stereo(core,V4L2_TUNER_MODE_STEREO);
 998                cx88_call_i2c_clients(dev->core,AUDC_SET_RADIO,NULL);
 999        }
1000
1001        return 0;
1002}
1003
1004static ssize_t
1005video_read(struct file *file, char __user *data, size_t count, loff_t *ppos)
1006{
1007        struct cx8800_fh *fh = file->private_data;
1008
1009        switch (fh->type) {
1010        case V4L2_BUF_TYPE_VIDEO_CAPTURE:
1011                if (res_locked(fh->dev,RESOURCE_VIDEO))
1012                        return -EBUSY;
1013                return videobuf_read_one(&fh->vidq, data, count, ppos,
1014                                         file->f_flags & O_NONBLOCK);
1015        case V4L2_BUF_TYPE_VBI_CAPTURE:
1016                if (!res_get(fh->dev,fh,RESOURCE_VBI))
1017                        return -EBUSY;
1018                return videobuf_read_stream(&fh->vbiq, data, count, ppos, 1,
1019                                            file->f_flags & O_NONBLOCK);
1020        default:
1021                BUG();
1022                return 0;
1023        }
1024}
1025
1026static unsigned int
1027video_poll(struct file *file, struct poll_table_struct *wait)
1028{
1029        struct cx8800_fh *fh = file->private_data;
1030        struct cx88_buffer *buf;
1031
1032        if (V4L2_BUF_TYPE_VBI_CAPTURE == fh->type) {
1033                if (!res_get(fh->dev,fh,RESOURCE_VBI))
1034                        return POLLERR;
1035                return videobuf_poll_stream(file, &fh->vbiq, wait);
1036        }
1037
1038        if (res_check(fh,RESOURCE_VIDEO)) {
1039                /* streaming capture */
1040                if (list_empty(&fh->vidq.stream))
1041                        return POLLERR;
1042                buf = list_entry(fh->vidq.stream.next,struct cx88_buffer,vb.stream);
1043        } else {
1044                /* read() capture */
1045                buf = (struct cx88_buffer*)fh->vidq.read_buf;
1046                if (NULL == buf)
1047                        return POLLERR;
1048        }
1049        poll_wait(file, &buf->vb.done, wait);
1050        if (buf->vb.state == STATE_DONE ||
1051            buf->vb.state == STATE_ERROR)
1052                return POLLIN|POLLRDNORM;
1053        return 0;
1054}
1055
1056static int video_release(struct inode *inode, struct file *file)
1057{
1058        struct cx8800_fh  *fh  = file->private_data;
1059        struct cx8800_dev *dev = fh->dev;
1060
1061        /* turn off overlay */
1062        if (res_check(fh, RESOURCE_OVERLAY)) {
1063                /* FIXME */
1064                res_free(dev,fh,RESOURCE_OVERLAY);
1065        }
1066
1067        /* stop video capture */
1068        if (res_check(fh, RESOURCE_VIDEO)) {
1069                videobuf_queue_cancel(&fh->vidq);
1070                res_free(dev,fh,RESOURCE_VIDEO);
1071        }
1072        if (fh->vidq.read_buf) {
1073                buffer_release(&fh->vidq,fh->vidq.read_buf);
1074                kfree(fh->vidq.read_buf);
1075        }
1076
1077        /* stop vbi capture */
1078        if (res_check(fh, RESOURCE_VBI)) {
1079                if (fh->vbiq.streaming)
1080                        videobuf_streamoff(&fh->vbiq);
1081                if (fh->vbiq.reading)
1082                        videobuf_read_stop(&fh->vbiq);
1083                res_free(dev,fh,RESOURCE_VBI);
1084        }
1085
1086        file->private_data = NULL;
1087        kfree(fh);
1088        return 0;
1089}
1090
1091static int
1092video_mmap(struct file *file, struct vm_area_struct * vma)
1093{
1094        struct cx8800_fh *fh = file->private_data;
1095
1096        return videobuf_mmap_mapper(get_queue(fh), vma);
1097}
1098
1099/* ------------------------------------------------------------------ */
1100
1101static int get_control(struct cx8800_dev *dev, struct v4l2_control *ctl)
1102{
1103        struct cx88_core *core = dev->core;
1104        struct cx88_ctrl *c = NULL;
1105        u32 value;
1106        int i;
1107
1108        for (i = 0; i < CX8800_CTLS; i++)
1109                if (cx8800_ctls[i].v.id == ctl->id)
1110                        c = &cx8800_ctls[i];
1111        if (NULL == c)
1112                return -EINVAL;
1113
1114        value = c->sreg ? cx_sread(c->sreg) : cx_read(c->reg);
1115        switch (ctl->id) {
1116        case V4L2_CID_AUDIO_BALANCE:
1117                ctl->value = (value & 0x40) ? (value & 0x3f) : (0x40 - (value & 0x3f));
1118                break;
1119        case V4L2_CID_AUDIO_VOLUME:
1120                ctl->value = 0x3f - (value & 0x3f);
1121                break;
1122        default:
1123                ctl->value = ((value + (c->off << c->shift)) & c->mask) >> c->shift;
1124                break;
1125        }
1126        return 0;
1127}
1128
1129static int set_control(struct cx8800_dev *dev, struct v4l2_control *ctl)
1130{
1131        struct cx88_core *core = dev->core;
1132        struct cx88_ctrl *c = NULL;
1133        u32 v_sat_value;
1134        u32 value;
1135        int i;
1136
1137        for (i = 0; i < CX8800_CTLS; i++)
1138                if (cx8800_ctls[i].v.id == ctl->id)
1139                        c = &cx8800_ctls[i];
1140        if (NULL == c)
1141                return -EINVAL;
1142
1143        if (ctl->value < c->v.minimum)
1144                return -ERANGE;
1145        if (ctl->value > c->v.maximum)
1146                return -ERANGE;
1147        switch (ctl->id) {
1148        case V4L2_CID_AUDIO_BALANCE:
1149                value = (ctl->value < 0x40) ? (0x40 - ctl->value) : ctl->value;
1150                break;
1151        case V4L2_CID_AUDIO_VOLUME:
1152                value = 0x3f - (ctl->value & 0x3f);
1153                break;
1154        case V4L2_CID_SATURATION:
1155                /* special v_sat handling */
1156                v_sat_value = ctl->value - (0x7f - 0x5a);
1157                if (v_sat_value > 0xff)
1158                        v_sat_value = 0xff;
1159                if (v_sat_value < 0x00)
1160                        v_sat_value = 0x00;
1161                cx_andor(MO_UV_SATURATION, 0xff00, v_sat_value << 8);
1162                /* fall through to default route for u_sat */
1163        default:
1164                value = ((ctl->value - c->off) << c->shift) & c->mask;
1165                break;
1166        }
1167        dprintk(1,"set_control id=0x%X reg=0x%x val=0x%x%s\n",
1168                ctl->id, c->reg, value, c->sreg ? " [shadowed]" : "");
1169        if (c->sreg) {
1170                cx_sandor(c->sreg, c->reg, c->mask, value);
1171        } else {
1172                cx_andor(c->reg, c->mask, value);
1173        }
1174        return 0;
1175}
1176
1177static void init_controls(struct cx8800_dev *dev)
1178{
1179        static struct v4l2_control mute = {
1180                .id    = V4L2_CID_AUDIO_MUTE,
1181                .value = 1,
1182        };
1183        static struct v4l2_control volume = {
1184                .id    = V4L2_CID_AUDIO_VOLUME,
1185                .value = 0x3f,
1186        };
1187
1188        set_control(dev,&mute);
1189        set_control(dev,&volume);
1190}
1191
1192/* ------------------------------------------------------------------ */
1193
1194static int cx8800_g_fmt(struct cx8800_dev *dev, struct cx8800_fh *fh,
1195                        struct v4l2_format *f)
1196{
1197        switch (f->type) {
1198        case V4L2_BUF_TYPE_VIDEO_CAPTURE:
1199                memset(&f->fmt.pix,0,sizeof(f->fmt.pix));
1200                f->fmt.pix.width        = fh->width;
1201                f->fmt.pix.height       = fh->height;
1202                f->fmt.pix.field        = fh->vidq.field;
1203                f->fmt.pix.pixelformat  = fh->fmt->fourcc;
1204                f->fmt.pix.bytesperline =
1205                        (f->fmt.pix.width * fh->fmt->depth) >> 3;
1206                f->fmt.pix.sizeimage =
1207                        f->fmt.pix.height * f->fmt.pix.bytesperline;
1208                return 0;
1209        case V4L2_BUF_TYPE_VBI_CAPTURE:
1210                cx8800_vbi_fmt(dev, f);
1211                return 0;
1212        default:
1213                return -EINVAL;
1214        }
1215}
1216
1217static int cx8800_try_fmt(struct cx8800_dev *dev, struct cx8800_fh *fh,
1218                          struct v4l2_format *f)
1219{
1220        switch (f->type) {
1221        case V4L2_BUF_TYPE_VIDEO_CAPTURE:
1222        {
1223                struct cx8800_fmt *fmt;
1224                enum v4l2_field field;
1225                unsigned int maxw, maxh;
1226
1227                fmt = format_by_fourcc(f->fmt.pix.pixelformat);
1228                if (NULL == fmt)
1229                        return -EINVAL;
1230
1231                field = f->fmt.pix.field;
1232                maxw  = norm_maxw(dev->core->tvnorm);
1233                maxh  = norm_maxh(dev->core->tvnorm);
1234
1235                if (V4L2_FIELD_ANY == field) {
1236                        field = (f->fmt.pix.height > maxh/2)
1237                                ? V4L2_FIELD_INTERLACED
1238                                : V4L2_FIELD_BOTTOM;
1239                }
1240
1241                switch (field) {
1242                case V4L2_FIELD_TOP:
1243                case V4L2_FIELD_BOTTOM:
1244                        maxh = maxh / 2;
1245                        break;
1246                case V4L2_FIELD_INTERLACED:
1247                        break;
1248                default:
1249                        return -EINVAL;
1250                }
1251
1252                f->fmt.pix.field = field;
1253                if (f->fmt.pix.height < 32)
1254                        f->fmt.pix.height = 32;
1255                if (f->fmt.pix.height > maxh)
1256                        f->fmt.pix.height = maxh;
1257                if (f->fmt.pix.width < 48)
1258                        f->fmt.pix.width = 48;
1259                if (f->fmt.pix.width > maxw)
1260                        f->fmt.pix.width = maxw;
1261                f->fmt.pix.width &= ~0x03;
1262                f->fmt.pix.bytesperline =
1263                        (f->fmt.pix.width * fmt->depth) >> 3;
1264                f->fmt.pix.sizeimage =
1265                        f->fmt.pix.height * f->fmt.pix.bytesperline;
1266
1267                return 0;
1268        }
1269        case V4L2_BUF_TYPE_VBI_CAPTURE:
1270                cx8800_vbi_fmt(dev, f);
1271                return 0;
1272        default:
1273                return -EINVAL;
1274        }
1275}
1276
1277static int cx8800_s_fmt(struct cx8800_dev *dev, struct cx8800_fh *fh,
1278                        struct v4l2_format *f)
1279{
1280        int err;
1281
1282        switch (f->type) {
1283        case V4L2_BUF_TYPE_VIDEO_CAPTURE:
1284                err = cx8800_try_fmt(dev,fh,f);
1285                if (0 != err)
1286                        return err;
1287
1288                fh->fmt        = format_by_fourcc(f->fmt.pix.pixelformat);
1289                fh->width      = f->fmt.pix.width;
1290                fh->height     = f->fmt.pix.height;
1291                fh->vidq.field = f->fmt.pix.field;
1292                return 0;
1293        case V4L2_BUF_TYPE_VBI_CAPTURE:
1294                cx8800_vbi_fmt(dev, f);
1295                return 0;
1296        default:
1297                return -EINVAL;
1298        }
1299}
1300
1301/*
1302 * This function is _not_ called directly, but from
1303 * video_generic_ioctl (and maybe others).  userspace
1304 * copying is done already, arg is a kernel pointer.
1305 */
1306static int video_do_ioctl(struct inode *inode, struct file *file,
1307                          unsigned int cmd, void *arg)
1308{
1309        struct cx8800_fh  *fh   = file->private_data;
1310        struct cx8800_dev *dev  = fh->dev;
1311        struct cx88_core  *core = dev->core;
1312#if 0
1313        unsigned long flags;
1314#endif
1315        int err;
1316
1317        if (video_debug > 1)
1318                cx88_print_ioctl(core->name,cmd);
1319        switch (cmd) {
1320        case VIDIOC_QUERYCAP:
1321        {
1322                struct v4l2_capability *cap = arg;
1323
1324                memset(cap,0,sizeof(*cap));
1325                strcpy(cap->driver, "cx8800");
1326                strlcpy(cap->card, cx88_boards[core->board].name,
1327                        sizeof(cap->card));
1328                sprintf(cap->bus_info,"PCI:%s",pci_name(dev->pci));
1329                cap->version = CX88_VERSION_CODE;
1330                cap->capabilities =
1331                        V4L2_CAP_VIDEO_CAPTURE |
1332                        V4L2_CAP_READWRITE     |
1333                        V4L2_CAP_STREAMING     |
1334                        V4L2_CAP_VBI_CAPTURE   |
1335#if 0
1336                        V4L2_CAP_VIDEO_OVERLAY |
1337#endif
1338                        0;
1339                if (UNSET != core->tuner_type)
1340                        cap->capabilities |= V4L2_CAP_TUNER;
1341
1342                return 0;
1343        }
1344
1345        /* ---------- tv norms ---------- */
1346        case VIDIOC_ENUMSTD:
1347        {
1348                struct v4l2_standard *e = arg;
1349                unsigned int i;
1350
1351                i = e->index;
1352                if (i >= ARRAY_SIZE(tvnorms))
1353                        return -EINVAL;
1354                err = v4l2_video_std_construct(e, tvnorms[e->index].id,
1355                                               tvnorms[e->index].name);
1356                e->index = i;
1357                if (err < 0)
1358                        return err;
1359                return 0;
1360        }
1361        case VIDIOC_G_STD:
1362        {
1363                v4l2_std_id *id = arg;
1364
1365                *id = core->tvnorm->id;
1366                return 0;
1367        }
1368        case VIDIOC_S_STD:
1369        {
1370                v4l2_std_id *id = arg;
1371                unsigned int i;
1372
1373                for(i = 0; i < ARRAY_SIZE(tvnorms); i++)
1374                        if (*id & tvnorms[i].id)
1375                                break;
1376                if (i == ARRAY_SIZE(tvnorms))
1377                        return -EINVAL;
1378
1379                down(&dev->lock);
1380                cx88_set_tvnorm(dev->core,&tvnorms[i]);
1381                up(&dev->lock);
1382                return 0;
1383        }
1384
1385        /* ------ input switching ---------- */
1386        case VIDIOC_ENUMINPUT:
1387        {
1388                static const char *iname[] = {
1389                        [ CX88_VMUX_COMPOSITE1 ] = "Composite1",
1390                        [ CX88_VMUX_COMPOSITE2 ] = "Composite2",
1391                        [ CX88_VMUX_COMPOSITE3 ] = "Composite3",
1392                        [ CX88_VMUX_COMPOSITE4 ] = "Composite4",
1393                        [ CX88_VMUX_SVIDEO     ] = "S-Video",
1394                        [ CX88_VMUX_TELEVISION ] = "Television",
1395                        [ CX88_VMUX_CABLE      ] = "Cable TV",
1396                        [ CX88_VMUX_DVB        ] = "DVB",
1397                        [ CX88_VMUX_DEBUG      ] = "for debug only",
1398                };
1399                struct v4l2_input *i = arg;
1400                unsigned int n;
1401
1402                n = i->index;
1403                if (n >= 4)
1404                        return -EINVAL;
1405                if (0 == INPUT(n)->type)
1406                        return -EINVAL;
1407                memset(i,0,sizeof(*i));
1408                i->index = n;
1409                i->type  = V4L2_INPUT_TYPE_CAMERA;
1410                strcpy(i->name,iname[INPUT(n)->type]);
1411                if ((CX88_VMUX_TELEVISION == INPUT(n)->type) ||
1412                    (CX88_VMUX_CABLE      == INPUT(n)->type))
1413                        i->type = V4L2_INPUT_TYPE_TUNER;
1414                for (n = 0; n < ARRAY_SIZE(tvnorms); n++)
1415                        i->std |= tvnorms[n].id;
1416                return 0;
1417        }
1418        case VIDIOC_G_INPUT:
1419        {
1420                unsigned int *i = arg;
1421
1422                *i = dev->core->input;
1423                return 0;
1424        }
1425        case VIDIOC_S_INPUT:
1426        {
1427                unsigned int *i = arg;
1428
1429                if (*i >= 4)
1430                        return -EINVAL;
1431                down(&dev->lock);
1432                video_mux(dev,*i);
1433                up(&dev->lock);
1434                return 0;
1435        }
1436
1437
1438#if 0
1439        /* needs review */
1440        case VIDIOC_G_AUDIO:
1441        {
1442                struct v4l2_audio *a = arg;
1443                unsigned int n = a->index;
1444
1445                memset(a,0,sizeof(*a));
1446                a->index = n;
1447                switch (n) {
1448                case 0:
1449                        if ((CX88_VMUX_TELEVISION == INPUT(n)->type)
1450                            || (CX88_VMUX_CABLE == INPUT(n)->type)) {
1451                                strcpy(a->name,"Television");
1452                                // FIXME figure out if stereo received and set V4L2_AUDCAP_STEREO.
1453                                return 0;
1454                        }
1455                        break;
1456                case 1:
1457                        if (CX88_BOARD_DVICO_FUSIONHDTV_3_GOLD == core->board) {
1458                                strcpy(a->name,"Line In");
1459                                a->capability = V4L2_AUDCAP_STEREO;
1460                                return 0;
1461                        }
1462                        break;
1463                }
1464                // Audio input not available.
1465                return -EINVAL;
1466        }
1467#endif
1468
1469        /* --- capture ioctls ---------------------------------------- */
1470        case VIDIOC_ENUM_FMT:
1471        {
1472                struct v4l2_fmtdesc *f = arg;
1473                enum v4l2_buf_type type;
1474                unsigned int index;
1475
1476                index = f->index;
1477                type  = f->type;
1478                switch (type) {
1479                case V4L2_BUF_TYPE_VIDEO_CAPTURE:
1480                        if (index >= ARRAY_SIZE(formats))
1481                                return -EINVAL;
1482                        memset(f,0,sizeof(*f));
1483                        f->index = index;
1484                        f->type  = type;
1485                        strlcpy(f->description,formats[index].name,sizeof(f->description));
1486                        f->pixelformat = formats[index].fourcc;
1487                        break;
1488                default:
1489                        return -EINVAL;
1490                }
1491                return 0;
1492        }
1493        case VIDIOC_G_FMT:
1494        {
1495                struct v4l2_format *f = arg;
1496                return cx8800_g_fmt(dev,fh,f);
1497        }
1498        case VIDIOC_S_FMT:
1499        {
1500                struct v4l2_format *f = arg;
1501                return cx8800_s_fmt(dev,fh,f);
1502        }
1503        case VIDIOC_TRY_FMT:
1504        {
1505                struct v4l2_format *f = arg;
1506                return cx8800_try_fmt(dev,fh,f);
1507        }
1508
1509        /* --- controls ---------------------------------------------- */
1510        case VIDIOC_QUERYCTRL:
1511        {
1512                struct v4l2_queryctrl *c = arg;
1513                int i;
1514
1515                if (c->id <  V4L2_CID_BASE ||
1516                    c->id >= V4L2_CID_LASTP1)
1517                        return -EINVAL;
1518                for (i = 0; i < CX8800_CTLS; i++)
1519                        if (cx8800_ctls[i].v.id == c->id)
1520                                break;
1521                if (i == CX8800_CTLS) {
1522                        *c = no_ctl;
1523                        return 0;
1524                }
1525                *c = cx8800_ctls[i].v;
1526                return 0;
1527        }
1528        case VIDIOC_G_CTRL:
1529                return get_control(dev,arg);
1530        case VIDIOC_S_CTRL:
1531                return set_control(dev,arg);
1532
1533        /* --- tuner ioctls ------------------------------------------ */
1534        case VIDIOC_G_TUNER:
1535        {
1536                struct v4l2_tuner *t = arg;
1537                u32 reg;
1538
1539                if (UNSET == core->tuner_type)
1540                        return -EINVAL;
1541                if (0 != t->index)
1542                        return -EINVAL;
1543
1544                memset(t,0,sizeof(*t));
1545                strcpy(t->name, "Television");
1546                t->type       = V4L2_TUNER_ANALOG_TV;
1547                t->capability = V4L2_TUNER_CAP_NORM;
1548                t->rangehigh  = 0xffffffffUL;
1549
1550                cx88_get_stereo(core ,t);
1551                reg = cx_read(MO_DEVICE_STATUS);
1552                t->signal = (reg & (1<<5)) ? 0xffff : 0x0000;
1553                return 0;
1554        }
1555        case VIDIOC_S_TUNER:
1556        {
1557                struct v4l2_tuner *t = arg;
1558
1559                if (UNSET == core->tuner_type)
1560                        return -EINVAL;
1561                if (0 != t->index)
1562                        return -EINVAL;
1563                cx88_set_stereo(core, t->audmode);
1564                return 0;
1565        }
1566        case VIDIOC_G_FREQUENCY:
1567        {
1568                struct v4l2_frequency *f = arg;
1569
1570                if (UNSET == core->tuner_type)
1571                        return -EINVAL;
1572                if (f->tuner != 0)
1573                        return -EINVAL;
1574                memset(f,0,sizeof(*f));
1575                f->type = fh->radio ? V4L2_TUNER_RADIO : V4L2_TUNER_ANALOG_TV;
1576                f->frequency = dev->freq;
1577                return 0;
1578        }
1579        case VIDIOC_S_FREQUENCY:
1580        {
1581                struct v4l2_frequency *f = arg;
1582
1583                if (UNSET == core->tuner_type)
1584                        return -EINVAL;
1585                if (f->tuner != 0)
1586                        return -EINVAL;
1587                if (0 == fh->radio && f->type != V4L2_TUNER_ANALOG_TV)
1588                        return -EINVAL;
1589                if (1 == fh->radio && f->type != V4L2_TUNER_RADIO)
1590                        return -EINVAL;
1591                down(&dev->lock);
1592                dev->freq = f->frequency;
1593#ifdef V4L2_I2C_CLIENTS
1594                cx88_call_i2c_clients(dev->core,VIDIOC_S_FREQUENCY,f);
1595#else
1596                cx88_call_i2c_clients(dev->core,VIDIOCSFREQ,&dev->freq);
1597#endif
1598                up(&dev->lock);
1599                return 0;
1600        }
1601
1602        /* --- streaming capture ------------------------------------- */
1603        case VIDIOCGMBUF:
1604        {
1605                struct video_mbuf *mbuf = arg;
1606                struct videobuf_queue *q;
1607                struct v4l2_requestbuffers req;
1608                unsigned int i;
1609
1610                q = get_queue(fh);
1611                memset(&req,0,sizeof(req));
1612                req.type   = q->type;
1613                req.count  = 8;
1614                req.memory = V4L2_MEMORY_MMAP;
1615                err = videobuf_reqbufs(q,&req);
1616                if (err < 0)
1617                        return err;
1618                memset(mbuf,0,sizeof(*mbuf));
1619                mbuf->frames = req.count;
1620                mbuf->size   = 0;
1621                for (i = 0; i < mbuf->frames; i++) {
1622                        mbuf->offsets[i]  = q->bufs[i]->boff;
1623                        mbuf->size       += q->bufs[i]->bsize;
1624                }
1625                return 0;
1626        }
1627        case VIDIOC_REQBUFS:
1628                return videobuf_reqbufs(get_queue(fh), arg);
1629
1630        case VIDIOC_QUERYBUF:
1631                return videobuf_querybuf(get_queue(fh), arg);
1632
1633        case VIDIOC_QBUF:
1634                return videobuf_qbuf(get_queue(fh), arg);
1635
1636        case VIDIOC_DQBUF:
1637                return videobuf_dqbuf(get_queue(fh), arg,
1638                                      file->f_flags & O_NONBLOCK);
1639
1640        case VIDIOC_STREAMON:
1641        {
1642                int res = get_ressource(fh);
1643
1644                if (!res_get(dev,fh,res))
1645                        return -EBUSY;
1646                return videobuf_streamon(get_queue(fh));
1647        }
1648        case VIDIOC_STREAMOFF:
1649        {
1650                int res = get_ressource(fh);
1651
1652                err = videobuf_streamoff(get_queue(fh));
1653                if (err < 0)
1654                        return err;
1655                res_free(dev,fh,res);
1656                return 0;
1657        }
1658
1659        default:
1660                return v4l_compat_translate_ioctl(inode,file,cmd,arg,
1661                                                  video_do_ioctl);
1662        }
1663        return 0;
1664}
1665
1666static int video_ioctl(struct inode *inode, struct file *file,
1667                       unsigned int cmd, unsigned long arg)
1668{
1669        return video_usercopy(inode, file, cmd, arg, video_do_ioctl);
1670}
1671
1672/* ----------------------------------------------------------- */
1673
1674static int radio_do_ioctl(struct inode *inode, struct file *file,
1675                        unsigned int cmd, void *arg)
1676{
1677        struct cx8800_fh *fh    = file->private_data;
1678        struct cx8800_dev *dev  = fh->dev;
1679        struct cx88_core  *core = dev->core;
1680
1681        if (video_debug > 1)
1682                cx88_print_ioctl(core->name,cmd);
1683
1684        switch (cmd) {
1685        case VIDIOC_QUERYCAP:
1686        {
1687                struct v4l2_capability *cap = arg;
1688
1689                memset(cap,0,sizeof(*cap));
1690                strcpy(cap->driver, "cx8800");
1691                strlcpy(cap->card, cx88_boards[core->board].name,
1692                        sizeof(cap->card));
1693                sprintf(cap->bus_info,"PCI:%s", pci_name(dev->pci));
1694                cap->version = CX88_VERSION_CODE;
1695                cap->capabilities = V4L2_CAP_TUNER;
1696                return 0;
1697        }
1698        case VIDIOC_G_TUNER:
1699        {
1700                struct v4l2_tuner *t = arg;
1701
1702                if (t->index > 0)
1703                        return -EINVAL;
1704
1705                memset(t,0,sizeof(*t));
1706                strcpy(t->name, "Radio");
1707                t->rangelow  = (int)(65*16);
1708                t->rangehigh = (int)(108*16);
1709
1710#ifdef V4L2_I2C_CLIENTS
1711                cx88_call_i2c_clients(dev->core,VIDIOC_G_TUNER,t);
1712#else
1713                {
1714                        struct video_tuner vt;
1715                        memset(&vt,0,sizeof(vt));
1716                        cx88_call_i2c_clients(dev,VIDIOCGTUNER,&vt);
1717                        t->signal = vt.signal;
1718                }
1719#endif
1720                return 0;
1721        }
1722        case VIDIOC_ENUMINPUT:
1723        {
1724                struct v4l2_input *i = arg;
1725
1726                if (i->index != 0)
1727                        return -EINVAL;
1728                strcpy(i->name,"Radio");
1729                i->type = V4L2_INPUT_TYPE_TUNER;
1730                return 0;
1731        }
1732        case VIDIOC_G_INPUT:
1733        {
1734                int *i = arg;
1735                *i = 0;
1736                return 0;
1737        }
1738        case VIDIOC_G_AUDIO:
1739        {
1740                struct v4l2_audio *a = arg;
1741
1742                memset(a,0,sizeof(*a));
1743                strcpy(a->name,"Radio");
1744                return 0;
1745        }
1746        case VIDIOC_G_STD:
1747        {
1748                v4l2_std_id *id = arg;
1749                *id = 0;
1750                return 0;
1751        }
1752        case VIDIOC_S_AUDIO:
1753        case VIDIOC_S_TUNER:
1754        case VIDIOC_S_INPUT:
1755        case VIDIOC_S_STD:
1756                return 0;
1757
1758        case VIDIOC_QUERYCTRL:
1759        {
1760                struct v4l2_queryctrl *c = arg;
1761                int i;
1762
1763                if (c->id <  V4L2_CID_BASE ||
1764                    c->id >= V4L2_CID_LASTP1)
1765                        return -EINVAL;
1766                if (c->id == V4L2_CID_AUDIO_MUTE) {
1767                        for (i = 0; i < CX8800_CTLS; i++)
1768                                if (cx8800_ctls[i].v.id == c->id)
1769                                        break;
1770                        *c = cx8800_ctls[i].v;
1771                } else
1772                        *c = no_ctl;
1773                return 0;
1774        }
1775
1776
1777        case VIDIOC_G_CTRL:
1778        case VIDIOC_S_CTRL:
1779        case VIDIOC_G_FREQUENCY:
1780        case VIDIOC_S_FREQUENCY:
1781                return video_do_ioctl(inode,file,cmd,arg);
1782
1783        default:
1784                return v4l_compat_translate_ioctl(inode,file,cmd,arg,
1785                                                  radio_do_ioctl);
1786        }
1787        return 0;
1788};
1789
1790static int radio_ioctl(struct inode *inode, struct file *file,
1791                        unsigned int cmd, unsigned long arg)
1792{
1793        return video_usercopy(inode, file, cmd, arg, radio_do_ioctl);
1794};
1795
1796/* ----------------------------------------------------------- */
1797
1798static void cx8800_vid_timeout(unsigned long data)
1799{
1800        struct cx8800_dev *dev = (struct cx8800_dev*)data;
1801        struct cx88_core *core = dev->core;
1802        struct cx88_dmaqueue *q = &dev->vidq;
1803        struct cx88_buffer *buf;
1804        unsigned long flags;
1805
1806        cx88_sram_channel_dump(dev->core, &cx88_sram_channels[SRAM_CH21]);
1807
1808        cx_clear(MO_VID_DMACNTRL, 0x11);
1809        cx_clear(VID_CAPTURE_CONTROL, 0x06);
1810
1811        spin_lock_irqsave(&dev->slock,flags);
1812        while (!list_empty(&q->active)) {
1813                buf = list_entry(q->active.next, struct cx88_buffer, vb.queue);
1814                list_del(&buf->vb.queue);
1815                buf->vb.state = STATE_ERROR;
1816                wake_up(&buf->vb.done);
1817                printk("%s/0: [%p/%d] timeout - dma=0x%08lx\n", core->name,
1818                       buf, buf->vb.i, (unsigned long)buf->risc.dma);
1819        }
1820        restart_video_queue(dev,q);
1821        spin_unlock_irqrestore(&dev->slock,flags);
1822}
1823
1824static void cx8800_vid_irq(struct cx8800_dev *dev)
1825{
1826        struct cx88_core *core = dev->core;
1827        u32 status, mask, count;
1828
1829        status = cx_read(MO_VID_INTSTAT);
1830        mask   = cx_read(MO_VID_INTMSK);
1831        if (0 == (status & mask))
1832                return;
1833        cx_write(MO_VID_INTSTAT, status);
1834        if (irq_debug  ||  (status & mask & ~0xff))
1835                cx88_print_irqbits(core->name, "irq vid",
1836                                   cx88_vid_irqs, status, mask);
1837
1838        /* risc op code error */
1839        if (status & (1 << 16)) {
1840                printk(KERN_WARNING "%s/0: video risc op code error\n",core->name);
1841                cx_clear(MO_VID_DMACNTRL, 0x11);
1842                cx_clear(VID_CAPTURE_CONTROL, 0x06);
1843                cx88_sram_channel_dump(dev->core, &cx88_sram_channels[SRAM_CH21]);
1844        }
1845
1846        /* risc1 y */
1847        if (status & 0x01) {
1848                spin_lock(&dev->slock);
1849                count = cx_read(MO_VIDY_GPCNT);
1850                cx88_wakeup(dev->core, &dev->vidq, count);
1851                spin_unlock(&dev->slock);
1852        }
1853
1854        /* risc1 vbi */
1855        if (status & 0x08) {
1856                spin_lock(&dev->slock);
1857                count = cx_read(MO_VBI_GPCNT);
1858                cx88_wakeup(dev->core, &dev->vbiq, count);
1859                spin_unlock(&dev->slock);
1860        }
1861
1862        /* risc2 y */
1863        if (status & 0x10) {
1864                dprintk(2,"stopper video\n");
1865                spin_lock(&dev->slock);
1866                restart_video_queue(dev,&dev->vidq);
1867                spin_unlock(&dev->slock);
1868        }
1869
1870        /* risc2 vbi */
1871        if (status & 0x80) {
1872                dprintk(2,"stopper vbi\n");
1873                spin_lock(&dev->slock);
1874                cx8800_restart_vbi_queue(dev,&dev->vbiq);
1875                spin_unlock(&dev->slock);
1876        }
1877}
1878
1879static irqreturn_t cx8800_irq(int irq, void *dev_id, struct pt_regs *regs)
1880{
1881        struct cx8800_dev *dev = dev_id;
1882        struct cx88_core *core = dev->core;
1883        u32 status, mask;
1884        int loop, handled = 0;
1885
1886        for (loop = 0; loop < 10; loop++) {
1887                status = cx_read(MO_PCI_INTSTAT) & (~0x1f | 0x01);
1888                mask   = cx_read(MO_PCI_INTMSK);
1889                if (0 == (status & mask))
1890                        goto out;
1891                cx_write(MO_PCI_INTSTAT, status);
1892                handled = 1;
1893
1894                if (status & mask & ~0x1f)
1895                        cx88_irq(core,status,mask);
1896                if (status & 0x01)
1897                        cx8800_vid_irq(dev);
1898        };
1899        if (10 == loop) {
1900                printk(KERN_WARNING "%s/0: irq loop -- clearing mask\n",
1901                       core->name);
1902                cx_write(MO_PCI_INTMSK,0);
1903        }
1904
1905 out:
1906        return IRQ_RETVAL(handled);
1907}
1908
1909/* ----------------------------------------------------------- */
1910/* exported stuff                                              */
1911
1912static struct file_operations video_fops =
1913{
1914        .owner         = THIS_MODULE,
1915        .open          = video_open,
1916        .release       = video_release,
1917        .read          = video_read,
1918        .poll          = video_poll,
1919        .mmap          = video_mmap,
1920        .ioctl         = video_ioctl,
1921        .llseek        = no_llseek,
1922};
1923
1924struct video_device cx8800_video_template =
1925{
1926        .name          = "cx8800-video",
1927        .type          = VID_TYPE_CAPTURE|VID_TYPE_TUNER|VID_TYPE_SCALES,
1928        .hardware      = 0,
1929        .fops          = &video_fops,
1930        .minor         = -1,
1931};
1932
1933struct video_device cx8800_vbi_template =
1934{
1935        .name          = "cx8800-vbi",
1936        .type          = VID_TYPE_TELETEXT|VID_TYPE_TUNER,
1937        .hardware      = 0,
1938        .fops          = &video_fops,
1939        .minor         = -1,
1940};
1941
1942static struct file_operations radio_fops =
1943{
1944        .owner         = THIS_MODULE,
1945        .open          = video_open,
1946        .release       = video_release,
1947        .ioctl         = radio_ioctl,
1948        .llseek        = no_llseek,
1949};
1950
1951struct video_device cx8800_radio_template =
1952{
1953        .name          = "cx8800-radio",
1954        .type          = VID_TYPE_TUNER,
1955        .hardware      = 0,
1956        .fops          = &radio_fops,
1957        .minor         = -1,
1958};
1959
1960/* ----------------------------------------------------------- */
1961
1962static void cx8800_unregister_video(struct cx8800_dev *dev)
1963{
1964        if (dev->radio_dev) {
1965                if (-1 != dev->radio_dev->minor)
1966                        video_unregister_device(dev->radio_dev);
1967                else
1968                        video_device_release(dev->radio_dev);
1969                dev->radio_dev = NULL;
1970        }
1971        if (dev->vbi_dev) {
1972                if (-1 != dev->vbi_dev->minor)
1973                        video_unregister_device(dev->vbi_dev);
1974                else
1975                        video_device_release(dev->vbi_dev);
1976                dev->vbi_dev = NULL;
1977        }
1978        if (dev->video_dev) {
1979                if (-1 != dev->video_dev->minor)
1980                        video_unregister_device(dev->video_dev);
1981                else
1982                        video_device_release(dev->video_dev);
1983                dev->video_dev = NULL;
1984        }
1985}
1986
1987static int __devinit cx8800_initdev(struct pci_dev *pci_dev,
1988                                    const struct pci_device_id *pci_id)
1989{
1990        struct cx8800_dev *dev;
1991        struct cx88_core *core;
1992        int err;
1993
1994        dev = kmalloc(sizeof(*dev),GFP_KERNEL);
1995        if (NULL == dev)
1996                return -ENOMEM;
1997        memset(dev,0,sizeof(*dev));
1998
1999        /* pci init */
2000        dev->pci = pci_dev;
2001        if (pci_enable_device(pci_dev)) {
2002                err = -EIO;
2003                goto fail_free;
2004        }
2005        core = cx88_core_get(dev->pci);
2006        if (NULL == core) {
2007                err = -EINVAL;
2008                goto fail_free;
2009        }
2010        dev->core = core;
2011
2012        /* print pci info */
2013        pci_read_config_byte(pci_dev, PCI_CLASS_REVISION, &dev->pci_rev);
2014        pci_read_config_byte(pci_dev, PCI_LATENCY_TIMER,  &dev->pci_lat);
2015        printk(KERN_INFO "%s/0: found at %s, rev: %d, irq: %d, "
2016               "latency: %d, mmio: 0x%lx\n", core->name,
2017               pci_name(pci_dev), dev->pci_rev, pci_dev->irq,
2018               dev->pci_lat,pci_resource_start(pci_dev,0));
2019
2020        pci_set_master(pci_dev);
2021        if (!pci_dma_supported(pci_dev,0xffffffff)) {
2022                printk("%s/0: Oops: no 32bit PCI DMA ???\n",core->name);
2023                err = -EIO;
2024                goto fail_core;
2025        }
2026
2027        /* initialize driver struct */
2028        init_MUTEX(&dev->lock);
2029        spin_lock_init(&dev->slock);
2030        core->tvnorm = tvnorms;
2031
2032        /* init video dma queues */
2033        INIT_LIST_HEAD(&dev->vidq.active);
2034        INIT_LIST_HEAD(&dev->vidq.queued);
2035        dev->vidq.timeout.function = cx8800_vid_timeout;
2036        dev->vidq.timeout.data     = (unsigned long)dev;
2037        init_timer(&dev->vidq.timeout);
2038        cx88_risc_stopper(dev->pci,&dev->vidq.stopper,
2039                          MO_VID_DMACNTRL,0x11,0x00);
2040
2041        /* init vbi dma queues */
2042        INIT_LIST_HEAD(&dev->vbiq.active);
2043        INIT_LIST_HEAD(&dev->vbiq.queued);
2044        dev->vbiq.timeout.function = cx8800_vbi_timeout;
2045        dev->vbiq.timeout.data     = (unsigned long)dev;
2046        init_timer(&dev->vbiq.timeout);
2047        cx88_risc_stopper(dev->pci,&dev->vbiq.stopper,
2048                          MO_VID_DMACNTRL,0x88,0x00);
2049
2050        /* get irq */
2051        err = request_irq(pci_dev->irq, cx8800_irq,
2052                          SA_SHIRQ | SA_INTERRUPT, core->name, dev);
2053        if (err < 0) {
2054                printk(KERN_ERR "%s: can't get IRQ %d\n",
2055                       core->name,pci_dev->irq);
2056                goto fail_core;
2057        }
2058
2059        /* load and configure helper modules */
2060        if (TUNER_ABSENT != core->tuner_type)
2061                request_module("tuner");
2062        if (core->tda9887_conf)
2063                request_module("tda9887");
2064        if (core->tuner_type != UNSET)
2065                cx88_call_i2c_clients(dev->core,TUNER_SET_TYPE,&core->tuner_type);
2066        if (core->tda9887_conf)
2067                cx88_call_i2c_clients(dev->core,TDA9887_SET_CONFIG,&core->tda9887_conf);
2068
2069        /* register v4l devices */
2070        dev->video_dev = cx88_vdev_init(core,dev->pci,
2071                                        &cx8800_video_template,"video");
2072        err = video_register_device(dev->video_dev,VFL_TYPE_GRABBER,
2073                                    video_nr[core->nr]);
2074        if (err < 0) {
2075                printk(KERN_INFO "%s: can't register video device\n",
2076                       core->name);
2077                goto fail_unreg;
2078        }
2079        printk(KERN_INFO "%s/0: registered device video%d [v4l2]\n",
2080               core->name,dev->video_dev->minor & 0x1f);
2081
2082        dev->vbi_dev = cx88_vdev_init(core,dev->pci,&cx8800_vbi_template,"vbi");
2083        err = video_register_device(dev->vbi_dev,VFL_TYPE_VBI,
2084                                    vbi_nr[core->nr]);
2085        if (err < 0) {
2086                printk(KERN_INFO "%s/0: can't register vbi device\n",
2087                       core->name);
2088                goto fail_unreg;
2089        }
2090        printk(KERN_INFO "%s/0: registered device vbi%d\n",
2091               core->name,dev->vbi_dev->minor & 0x1f);
2092
2093        if (core->has_radio) {
2094                dev->radio_dev = cx88_vdev_init(core,dev->pci,
2095                                                &cx8800_radio_template,"radio");
2096                err = video_register_device(dev->radio_dev,VFL_TYPE_RADIO,
2097                                            radio_nr[core->nr]);
2098                if (err < 0) {
2099                        printk(KERN_INFO "%s/0: can't register radio device\n",
2100                               core->name);
2101                        goto fail_unreg;
2102                }
2103                printk(KERN_INFO "%s/0: registered device radio%d\n",
2104                       core->name,dev->radio_dev->minor & 0x1f);
2105        }
2106
2107        /* everything worked */
2108        list_add_tail(&dev->devlist,&cx8800_devlist);
2109        pci_set_drvdata(pci_dev,dev);
2110
2111        /* initial device configuration */
2112        down(&dev->lock);
2113        init_controls(dev);
2114        cx88_set_tvnorm(dev->core,tvnorms);
2115        video_mux(dev,0);
2116        up(&dev->lock);
2117
2118        /* start tvaudio thread */
2119        if (core->tuner_type != TUNER_ABSENT)
2120                core->kthread = kthread_run(cx88_audio_thread, core, "cx88 tvaudio");
2121        return 0;
2122
2123fail_unreg:
2124        cx8800_unregister_video(dev);
2125        free_irq(pci_dev->irq, dev);
2126fail_core:
2127        cx88_core_put(core,dev->pci);
2128fail_free:
2129        kfree(dev);
2130        return err;
2131}
2132
2133static void __devexit cx8800_finidev(struct pci_dev *pci_dev)
2134{
2135        struct cx8800_dev *dev = pci_get_drvdata(pci_dev);
2136
2137        /* stop thread */
2138        if (dev->core->kthread) {
2139                kthread_stop(dev->core->kthread);
2140                dev->core->kthread = NULL;
2141        }
2142
2143        cx88_shutdown(dev->core); /* FIXME */
2144        pci_disable_device(pci_dev);
2145
2146        /* unregister stuff */
2147
2148        free_irq(pci_dev->irq, dev);
2149        cx8800_unregister_video(dev);
2150        pci_set_drvdata(pci_dev, NULL);
2151
2152        /* free memory */
2153        btcx_riscmem_free(dev->pci,&dev->vidq.stopper);
2154        list_del(&dev->devlist);
2155        cx88_core_put(dev->core,dev->pci);
2156        kfree(dev);
2157}
2158
2159static int cx8800_suspend(struct pci_dev *pci_dev, u32 state)
2160{
2161        struct cx8800_dev *dev = pci_get_drvdata(pci_dev);
2162        struct cx88_core *core = dev->core;
2163
2164        /* stop video+vbi capture */
2165        spin_lock(&dev->slock);
2166        if (!list_empty(&dev->vidq.active)) {
2167                printk("%s: suspend video\n", core->name);
2168                stop_video_dma(dev);
2169                del_timer(&dev->vidq.timeout);
2170        }
2171        if (!list_empty(&dev->vbiq.active)) {
2172                printk("%s: suspend vbi\n", core->name);
2173                cx8800_stop_vbi_dma(dev);
2174                del_timer(&dev->vbiq.timeout);
2175        }
2176        spin_unlock(&dev->slock);
2177
2178#if 1
2179        /* FIXME -- shutdown device */
2180        cx88_shutdown(dev->core);
2181#endif
2182
2183        pci_save_state(pci_dev);
2184        if (0 != pci_set_power_state(pci_dev, state)) {
2185                pci_disable_device(pci_dev);
2186                dev->state.disabled = 1;
2187        }
2188        return 0;
2189}
2190
2191static int cx8800_resume(struct pci_dev *pci_dev)
2192{
2193        struct cx8800_dev *dev = pci_get_drvdata(pci_dev);
2194        struct cx88_core *core = dev->core;
2195
2196        if (dev->state.disabled) {
2197                pci_enable_device(pci_dev);
2198                dev->state.disabled = 0;
2199        }
2200        pci_set_power_state(pci_dev, 0);
2201        pci_restore_state(pci_dev);
2202
2203#if 1
2204        /* FIXME: re-initialize hardware */
2205        cx88_reset(dev->core);
2206#endif
2207
2208        /* restart video+vbi capture */
2209        spin_lock(&dev->slock);
2210        if (!list_empty(&dev->vidq.active)) {
2211                printk("%s: resume video\n", core->name);
2212                restart_video_queue(dev,&dev->vidq);
2213        }
2214        if (!list_empty(&dev->vbiq.active)) {
2215                printk("%s: resume vbi\n", core->name);
2216                cx8800_restart_vbi_queue(dev,&dev->vbiq);
2217        }
2218        spin_unlock(&dev->slock);
2219
2220        return 0;
2221}
2222
2223/* ----------------------------------------------------------- */
2224
2225struct pci_device_id cx8800_pci_tbl[] = {
2226        {
2227                .vendor       = 0x14f1,
2228                .device       = 0x8800,
2229                .subvendor    = PCI_ANY_ID,
2230                .subdevice    = PCI_ANY_ID,
2231        },{
2232                /* --- end of list --- */
2233        }
2234};
2235MODULE_DEVICE_TABLE(pci, cx8800_pci_tbl);
2236
2237static struct pci_driver cx8800_pci_driver = {
2238        .name     = "cx8800",
2239        .id_table = cx8800_pci_tbl,
2240        .probe    = cx8800_initdev,
2241        .remove   = __devexit_p(cx8800_finidev),
2242
2243        .suspend  = cx8800_suspend,
2244        .resume   = cx8800_resume,
2245};
2246
2247static int cx8800_init(void)
2248{
2249        printk(KERN_INFO "cx2388x v4l2 driver version %d.%d.%d loaded\n",
2250               (CX88_VERSION_CODE >> 16) & 0xff,
2251               (CX88_VERSION_CODE >>  8) & 0xff,
2252               CX88_VERSION_CODE & 0xff);
2253#ifdef SNAPSHOT
2254        printk(KERN_INFO "cx2388x: snapshot date %04d-%02d-%02d\n",
2255               SNAPSHOT/10000, (SNAPSHOT/100)%100, SNAPSHOT%100);
2256#endif
2257        return pci_module_init(&cx8800_pci_driver);
2258}
2259
2260static void cx8800_fini(void)
2261{
2262        pci_unregister_driver(&cx8800_pci_driver);
2263}
2264
2265module_init(cx8800_init);
2266module_exit(cx8800_fini);
2267
2268/* ----------------------------------------------------------- */
2269/*
2270 * Local variables:
2271 * c-basic-offset: 8
2272 * End:
2273 */
2274
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