drivers/media/video/ivtv/ivtv-driver.h

   1 /*
   2     ivtv driver internal defines and structures
   3     Copyright (C) 2003-2004  Kevin Thayer <nufan_wfk at yahoo.com>
   4     Copyright (C) 2004  Chris Kennedy <c@groovy.org>
   5     Copyright (C) 2005-2007  Hans Verkuil <hverkuil@xs4all.nl>
   6
   7     This program is free software; you can redistribute it and/or modify
   8     it under the terms of the GNU General Public License as published by
   9     the Free Software Foundation; either version 2 of the License, or
  10     (at your option) any later version.
  11
  12     This program is distributed in the hope that it will be useful,
  13     but WITHOUT ANY WARRANTY; without even the implied warranty of
  14     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15     GNU General Public License for more details.
  16
  17     You should have received a copy of the GNU General Public License
  18     along with this program; if not, write to the Free Software
  19     Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  20  */
  21
  22 #ifndef IVTV_DRIVER_H
  23 #define IVTV_DRIVER_H
  24
  25 /* Internal header for ivtv project:
  26  * Driver for the cx23415/6 chip.
  27  * Author: Kevin Thayer (nufan_wfk at yahoo.com)
  28  * License: GPL
  29  * http://www.ivtvdriver.org
  30  *
  31  * -----
  32  * MPG600/MPG160 support by  T.Adachi <tadachi@tadachi-net.com>
  33  *                      and Takeru KOMORIYA<komoriya@paken.org>
  34  *
  35  * AVerMedia M179 GPIO info by Chris Pinkham <cpinkham@bc2va.org>
  36  *                using information provided by Jiun-Kuei Jung @ AVerMedia.
  37  */
  38
  39 #include <linux/module.h>
  40 #include <linux/init.h>
  41 #include <linux/delay.h>
  42 #include <linux/sched.h>
  43 #include <linux/fs.h>
  44 #include <linux/pci.h>
  45 #include <linux/interrupt.h>
  46 #include <linux/spinlock.h>
  47 #include <linux/i2c.h>
  48 #include <linux/i2c-algo-bit.h>
  49 #include <linux/list.h>
  50 #include <linux/unistd.h>
  51 #include <linux/pagemap.h>
  52 #include <linux/scatterlist.h>
  53 #include <linux/kthread.h>
  54 #include <linux/mutex.h>
  55 #include <linux/slab.h>
  56 #include <asm/uaccess.h>
  57 #include <asm/byteorder.h>
  58
  59 #include <linux/dvb/video.h>
  60 #include <linux/dvb/audio.h>
  61 #include <media/v4l2-common.h>
  62 #include <media/v4l2-ioctl.h>
  63 #include <media/v4l2-ctrls.h>
  64 #include <media/v4l2-device.h>
  65 #include <media/v4l2-fh.h>
  66 #include <media/tuner.h>
  67 #include <media/cx2341x.h>
  68 #include <media/ir-kbd-i2c.h>
  69
  70 #include <linux/ivtv.h>
  71
  72 /* Memory layout */
  73 #define IVTV_ENCODER_OFFSET     0x00000000
  74 #define IVTV_ENCODER_SIZE       0x00800000      /* Total size is 0x01000000, but only first half is used */
  75 #define IVTV_DECODER_OFFSET     0x01000000
  76 #define IVTV_DECODER_SIZE       0x00800000      /* Total size is 0x01000000, but only first half is used */
  77 #define IVTV_REG_OFFSET         0x02000000
  78 #define IVTV_REG_SIZE           0x00010000
  79
  80 /* Maximum ivtv driver instances. Some people have a huge number of
  81    capture cards, so set this to a high value. */
  82 #define IVTV_MAX_CARDS 32
  83
  84 #define IVTV_ENC_STREAM_TYPE_MPG  0
  85 #define IVTV_ENC_STREAM_TYPE_YUV  1
  86 #define IVTV_ENC_STREAM_TYPE_VBI  2
  87 #define IVTV_ENC_STREAM_TYPE_PCM  3
  88 #define IVTV_ENC_STREAM_TYPE_RAD  4
  89 #define IVTV_DEC_STREAM_TYPE_MPG  5
  90 #define IVTV_DEC_STREAM_TYPE_VBI  6
  91 #define IVTV_DEC_STREAM_TYPE_VOUT 7
  92 #define IVTV_DEC_STREAM_TYPE_YUV  8
  93 #define IVTV_MAX_STREAMS          9
  94
  95 #define IVTV_DMA_SG_OSD_ENT     (2883584/PAGE_SIZE)     /* sg entities */
  96
  97 /* DMA Registers */
  98 #define IVTV_REG_DMAXFER        (0x0000)
  99 #define IVTV_REG_DMASTATUS      (0x0004)
 100 #define IVTV_REG_DECDMAADDR     (0x0008)
 101 #define IVTV_REG_ENCDMAADDR     (0x000c)
 102 #define IVTV_REG_DMACONTROL     (0x0010)
 103 #define IVTV_REG_IRQSTATUS      (0x0040)
 104 #define IVTV_REG_IRQMASK        (0x0048)
 105
 106 /* Setup Registers */
 107 #define IVTV_REG_ENC_SDRAM_REFRESH      (0x07F8)
 108 #define IVTV_REG_ENC_SDRAM_PRECHARGE    (0x07FC)
 109 #define IVTV_REG_DEC_SDRAM_REFRESH      (0x08F8)
 110 #define IVTV_REG_DEC_SDRAM_PRECHARGE    (0x08FC)
 111 #define IVTV_REG_VDM                    (0x2800)
 112 #define IVTV_REG_AO                     (0x2D00)
 113 #define IVTV_REG_BYTEFLUSH              (0x2D24)
 114 #define IVTV_REG_SPU                    (0x9050)
 115 #define IVTV_REG_HW_BLOCKS              (0x9054)
 116 #define IVTV_REG_VPU                    (0x9058)
 117 #define IVTV_REG_APU                    (0xA064)
 118
 119 /* Other registers */
 120 #define IVTV_REG_DEC_LINE_FIELD         (0x28C0)
 121
 122 /* debugging */
 123 extern int ivtv_debug;
 124 #ifdef CONFIG_VIDEO_ADV_DEBUG
 125 extern int ivtv_fw_debug;
 126 #endif
 127
 128 #define IVTV_DBGFLG_WARN    (1 << 0)
 129 #define IVTV_DBGFLG_INFO    (1 << 1)
 130 #define IVTV_DBGFLG_MB      (1 << 2)
 131 #define IVTV_DBGFLG_IOCTL   (1 << 3)
 132 #define IVTV_DBGFLG_FILE    (1 << 4)
 133 #define IVTV_DBGFLG_DMA     (1 << 5)
 134 #define IVTV_DBGFLG_IRQ     (1 << 6)
 135 #define IVTV_DBGFLG_DEC     (1 << 7)
 136 #define IVTV_DBGFLG_YUV     (1 << 8)
 137 #define IVTV_DBGFLG_I2C     (1 << 9)
 138 /* Flag to turn on high volume debugging */
 139 #define IVTV_DBGFLG_HIGHVOL (1 << 10)
 140
 141 #define IVTV_DEBUG(x, type, fmt, args...) \
 142         do { \
 143                 if ((x) & ivtv_debug) \
 144                         v4l2_info(&itv->v4l2_dev, " " type ": " fmt , ##args);  \
 145         } while (0)
 146 #define IVTV_DEBUG_WARN(fmt, args...)  IVTV_DEBUG(IVTV_DBGFLG_WARN,  "warn",  fmt , ## args)
 147 #define IVTV_DEBUG_INFO(fmt, args...)  IVTV_DEBUG(IVTV_DBGFLG_INFO,  "info",  fmt , ## args)
 148 #define IVTV_DEBUG_MB(fmt, args...)    IVTV_DEBUG(IVTV_DBGFLG_MB,    "mb",    fmt , ## args)
 149 #define IVTV_DEBUG_DMA(fmt, args...)   IVTV_DEBUG(IVTV_DBGFLG_DMA,   "dma",   fmt , ## args)
 150 #define IVTV_DEBUG_IOCTL(fmt, args...) IVTV_DEBUG(IVTV_DBGFLG_IOCTL, "ioctl", fmt , ## args)
 151 #define IVTV_DEBUG_FILE(fmt, args...)  IVTV_DEBUG(IVTV_DBGFLG_FILE,  "file",  fmt , ## args)
 152 #define IVTV_DEBUG_I2C(fmt, args...)   IVTV_DEBUG(IVTV_DBGFLG_I2C,   "i2c",   fmt , ## args)
 153 #define IVTV_DEBUG_IRQ(fmt, args...)   IVTV_DEBUG(IVTV_DBGFLG_IRQ,   "irq",   fmt , ## args)
 154 #define IVTV_DEBUG_DEC(fmt, args...)   IVTV_DEBUG(IVTV_DBGFLG_DEC,   "dec",   fmt , ## args)
 155 #define IVTV_DEBUG_YUV(fmt, args...)   IVTV_DEBUG(IVTV_DBGFLG_YUV,   "yuv",   fmt , ## args)
 156
 157 #define IVTV_DEBUG_HIGH_VOL(x, type, fmt, args...) \
 158         do { \
 159                 if (((x) & ivtv_debug) && (ivtv_debug & IVTV_DBGFLG_HIGHVOL))   \
 160                         v4l2_info(&itv->v4l2_dev, " " type ": " fmt , ##args);  \
 161         } while (0)
 162 #define IVTV_DEBUG_HI_WARN(fmt, args...)  IVTV_DEBUG_HIGH_VOL(IVTV_DBGFLG_WARN,  "warn",  fmt , ## args)
 163 #define IVTV_DEBUG_HI_INFO(fmt, args...)  IVTV_DEBUG_HIGH_VOL(IVTV_DBGFLG_INFO,  "info",  fmt , ## args)
 164 #define IVTV_DEBUG_HI_MB(fmt, args...)    IVTV_DEBUG_HIGH_VOL(IVTV_DBGFLG_MB,    "mb",    fmt , ## args)
 165 #define IVTV_DEBUG_HI_DMA(fmt, args...)   IVTV_DEBUG_HIGH_VOL(IVTV_DBGFLG_DMA,   "dma",   fmt , ## args)
 166 #define IVTV_DEBUG_HI_IOCTL(fmt, args...) IVTV_DEBUG_HIGH_VOL(IVTV_DBGFLG_IOCTL, "ioctl", fmt , ## args)
 167 #define IVTV_DEBUG_HI_FILE(fmt, args...)  IVTV_DEBUG_HIGH_VOL(IVTV_DBGFLG_FILE,  "file",  fmt , ## args)
 168 #define IVTV_DEBUG_HI_I2C(fmt, args...)   IVTV_DEBUG_HIGH_VOL(IVTV_DBGFLG_I2C,   "i2c",   fmt , ## args)
 169 #define IVTV_DEBUG_HI_IRQ(fmt, args...)   IVTV_DEBUG_HIGH_VOL(IVTV_DBGFLG_IRQ,   "irq",   fmt , ## args)
 170 #define IVTV_DEBUG_HI_DEC(fmt, args...)   IVTV_DEBUG_HIGH_VOL(IVTV_DBGFLG_DEC,   "dec",   fmt , ## args)
 171 #define IVTV_DEBUG_HI_YUV(fmt, args...)   IVTV_DEBUG_HIGH_VOL(IVTV_DBGFLG_YUV,   "yuv",   fmt , ## args)
 172
 173 /* Standard kernel messages */
 174 #define IVTV_ERR(fmt, args...)      v4l2_err(&itv->v4l2_dev, fmt , ## args)
 175 #define IVTV_WARN(fmt, args...)     v4l2_warn(&itv->v4l2_dev, fmt , ## args)
 176 #define IVTV_INFO(fmt, args...)     v4l2_info(&itv->v4l2_dev, fmt , ## args)
 177
 178 /* output modes (cx23415 only) */
 179 #define OUT_NONE        0
 180 #define OUT_MPG         1
 181 #define OUT_YUV         2
 182 #define OUT_UDMA_YUV    3
 183 #define OUT_PASSTHROUGH 4
 184
 185 #define IVTV_MAX_PGM_INDEX (400)
 186
 187 /* Default I2C SCL period in microseconds */
 188 #define IVTV_DEFAULT_I2C_CLOCK_PERIOD   20
 189
 190 struct ivtv_options {
 191         int kilobytes[IVTV_MAX_STREAMS];        /* size in kilobytes of each stream */
 192         int cardtype;                           /* force card type on load */
 193         int tuner;                              /* set tuner on load */
 194         int radio;                              /* enable/disable radio */
 195         int newi2c;                             /* new I2C algorithm */
 196         int i2c_clock_period;                   /* period of SCL for I2C bus */
 197 };
 198
 199 /* ivtv-specific mailbox template */
 200 struct ivtv_mailbox {
 201         u32 flags;
 202         u32 cmd;
 203         u32 retval;
 204         u32 timeout;
 205         u32 data[CX2341X_MBOX_MAX_DATA];
 206 };
 207
 208 struct ivtv_api_cache {
 209         unsigned long last_jiffies;             /* when last command was issued */
 210         u32 data[CX2341X_MBOX_MAX_DATA];        /* last sent api data */
 211 };
 212
 213 struct ivtv_mailbox_data {
 214         volatile struct ivtv_mailbox __iomem *mbox;
 215         /* Bits 0-2 are for the encoder mailboxes, 0-1 are for the decoder mailboxes.
 216            If the bit is set, then the corresponding mailbox is in use by the driver. */
 217         unsigned long busy;
 218         u8 max_mbox;
 219 };
 220
 221 /* per-buffer bit flags */
 222 #define IVTV_F_B_NEED_BUF_SWAP  (1 << 0)        /* this buffer should be byte swapped */
 223
 224 /* per-stream, s_flags */
 225 #define IVTV_F_S_DMA_PENDING    0       /* this stream has pending DMA */
 226 #define IVTV_F_S_DMA_HAS_VBI    1       /* the current DMA request also requests VBI data */
 227 #define IVTV_F_S_NEEDS_DATA     2       /* this decoding stream needs more data */
 228
 229 #define IVTV_F_S_CLAIMED        3       /* this stream is claimed */
 230 #define IVTV_F_S_STREAMING      4       /* the fw is decoding/encoding this stream */
 231 #define IVTV_F_S_INTERNAL_USE   5       /* this stream is used internally (sliced VBI processing) */
 232 #define IVTV_F_S_PASSTHROUGH    6       /* this stream is in passthrough mode */
 233 #define IVTV_F_S_STREAMOFF      7       /* signal end of stream EOS */
 234 #define IVTV_F_S_APPL_IO        8       /* this stream is used read/written by an application */
 235
 236 #define IVTV_F_S_PIO_PENDING    9       /* this stream has pending PIO */
 237 #define IVTV_F_S_PIO_HAS_VBI    1       /* the current PIO request also requests VBI data */
 238
 239 /* per-ivtv, i_flags */
 240 #define IVTV_F_I_DMA               0    /* DMA in progress */
 241 #define IVTV_F_I_UDMA              1    /* UDMA in progress */
 242 #define IVTV_F_I_UDMA_PENDING      2    /* UDMA pending */
 243 #define IVTV_F_I_SPEED_CHANGE      3    /* a speed change is in progress */
 244 #define IVTV_F_I_EOS               4    /* end of encoder stream reached */
 245 #define IVTV_F_I_RADIO_USER        5    /* the radio tuner is selected */
 246 #define IVTV_F_I_DIG_RST           6    /* reset digitizer */
 247 #define IVTV_F_I_DEC_YUV           7    /* YUV instead of MPG is being decoded */
 248 #define IVTV_F_I_UPDATE_CC         9    /* CC should be updated */
 249 #define IVTV_F_I_UPDATE_WSS        10   /* WSS should be updated */
 250 #define IVTV_F_I_UPDATE_VPS        11   /* VPS should be updated */
 251 #define IVTV_F_I_DECODING_YUV      12   /* this stream is YUV frame decoding */
 252 #define IVTV_F_I_ENC_PAUSED        13   /* the encoder is paused */
 253 #define IVTV_F_I_VALID_DEC_TIMINGS 14   /* last_dec_timing is valid */
 254 #define IVTV_F_I_HAVE_WORK         15   /* used in the interrupt handler: there is work to be done */
 255 #define IVTV_F_I_WORK_HANDLER_VBI  16   /* there is work to be done for VBI */
 256 #define IVTV_F_I_WORK_HANDLER_YUV  17   /* there is work to be done for YUV */
 257 #define IVTV_F_I_WORK_HANDLER_PIO  18   /* there is work to be done for PIO */
 258 #define IVTV_F_I_PIO               19   /* PIO in progress */
 259 #define IVTV_F_I_DEC_PAUSED        20   /* the decoder is paused */
 260 #define IVTV_F_I_INITED            21   /* set after first open */
 261 #define IVTV_F_I_FAILED            22   /* set if first open failed */
 262
 263 /* Event notifications */
 264 #define IVTV_F_I_EV_DEC_STOPPED    28   /* decoder stopped event */
 265 #define IVTV_F_I_EV_VSYNC          29   /* VSYNC event */
 266 #define IVTV_F_I_EV_VSYNC_FIELD    30   /* VSYNC event field (0 = first, 1 = second field) */
 267 #define IVTV_F_I_EV_VSYNC_ENABLED  31   /* VSYNC event enabled */
 268
 269 /* Scatter-Gather array element, used in DMA transfers */
 270 struct ivtv_sg_element {
 271         __le32 src;
 272         __le32 dst;
 273         __le32 size;
 274 };
 275
 276 struct ivtv_sg_host_element {
 277         u32 src;
 278         u32 dst;
 279         u32 size;
 280 };
 281
 282 struct ivtv_user_dma {
 283         struct mutex lock;
 284         int page_count;
 285         struct page *map[IVTV_DMA_SG_OSD_ENT];
 286         /* Needed when dealing with highmem userspace buffers */
 287         struct page *bouncemap[IVTV_DMA_SG_OSD_ENT];
 288
 289         /* Base Dev SG Array for cx23415/6 */
 290         struct ivtv_sg_element SGarray[IVTV_DMA_SG_OSD_ENT];
 291         dma_addr_t SG_handle;
 292         int SG_length;
 293
 294         /* SG List of Buffers */
 295         struct scatterlist SGlist[IVTV_DMA_SG_OSD_ENT];
 296 };
 297
 298 struct ivtv_dma_page_info {
 299         unsigned long uaddr;
 300         unsigned long first;
 301         unsigned long last;
 302         unsigned int offset;
 303         unsigned int tail;
 304         int page_count;
 305 };
 306
 307 struct ivtv_buffer {
 308         struct list_head list;
 309         dma_addr_t dma_handle;
 310         unsigned short b_flags;
 311         unsigned short dma_xfer_cnt;
 312         char *buf;
 313         u32 bytesused;
 314         u32 readpos;
 315 };
 316
 317 struct ivtv_queue {
 318         struct list_head list;          /* the list of buffers in this queue */
 319         u32 buffers;                    /* number of buffers in this queue */
 320         u32 length;                     /* total number of bytes of available buffer space */
 321         u32 bytesused;                  /* total number of bytes used in this queue */
 322 };
 323
 324 struct ivtv;                            /* forward reference */
 325
 326 struct ivtv_stream {
 327         /* These first four fields are always set, even if the stream
 328            is not actually created. */
 329         struct video_device *vdev;      /* NULL when stream not created */
 330         struct ivtv *itv;               /* for ease of use */
 331         const char *name;               /* name of the stream */
 332         int type;                       /* stream type */
 333         u32 caps;                       /* V4L2 capabilities */
 334
 335         struct v4l2_fh *fh;             /* pointer to the streaming filehandle */
 336         spinlock_t qlock;               /* locks access to the queues */
 337         unsigned long s_flags;          /* status flags, see above */
 338         int dma;                        /* can be PCI_DMA_TODEVICE, PCI_DMA_FROMDEVICE or PCI_DMA_NONE */
 339         u32 pending_offset;
 340         u32 pending_backup;
 341         u64 pending_pts;
 342
 343         u32 dma_offset;
 344         u32 dma_backup;
 345         u64 dma_pts;
 346
 347         int subtype;
 348         wait_queue_head_t waitq;
 349         u32 dma_last_offset;
 350
 351         /* Buffer Stats */
 352         u32 buffers;
 353         u32 buf_size;
 354         u32 buffers_stolen;
 355
 356         /* Buffer Queues */
 357         struct ivtv_queue q_free;       /* free buffers */
 358         struct ivtv_queue q_full;       /* full buffers */
 359         struct ivtv_queue q_io;         /* waiting for I/O */
 360         struct ivtv_queue q_dma;        /* waiting for DMA */
 361         struct ivtv_queue q_predma;     /* waiting for DMA */
 362
 363         /* DMA xfer counter, buffers belonging to the same DMA
 364            xfer will have the same dma_xfer_cnt. */
 365         u16 dma_xfer_cnt;
 366
 367         /* Base Dev SG Array for cx23415/6 */
 368         struct ivtv_sg_host_element *sg_pending;
 369         struct ivtv_sg_host_element *sg_processing;
 370         struct ivtv_sg_element *sg_dma;
 371         dma_addr_t sg_handle;
 372         int sg_pending_size;
 373         int sg_processing_size;
 374         int sg_processed;
 375
 376         /* SG List of Buffers */
 377         struct scatterlist *SGlist;
 378 };
 379
 380 struct ivtv_open_id {
 381         struct v4l2_fh fh;
 382         int type;                       /* stream type */
 383         int yuv_frames;                 /* 1: started OUT_UDMA_YUV output mode */
 384         struct ivtv *itv;
 385 };
 386
 387 static inline struct ivtv_open_id *fh2id(struct v4l2_fh *fh)
 388 {
 389         return container_of(fh, struct ivtv_open_id, fh);
 390 }
 391
 392 struct yuv_frame_info
 393 {
 394         u32 update;
 395         s32 src_x;
 396         s32 src_y;
 397         u32 src_w;
 398         u32 src_h;
 399         s32 dst_x;
 400         s32 dst_y;
 401         u32 dst_w;
 402         u32 dst_h;
 403         s32 pan_x;
 404         s32 pan_y;
 405         u32 vis_w;
 406         u32 vis_h;
 407         u32 interlaced_y;
 408         u32 interlaced_uv;
 409         s32 tru_x;
 410         u32 tru_w;
 411         u32 tru_h;
 412         u32 offset_y;
 413         s32 lace_mode;
 414         u32 sync_field;
 415         u32 delay;
 416         u32 interlaced;
 417 };
 418
 419 #define IVTV_YUV_MODE_INTERLACED        0x00
 420 #define IVTV_YUV_MODE_PROGRESSIVE       0x01
 421 #define IVTV_YUV_MODE_AUTO              0x02
 422 #define IVTV_YUV_MODE_MASK              0x03
 423
 424 #define IVTV_YUV_SYNC_EVEN              0x00
 425 #define IVTV_YUV_SYNC_ODD               0x04
 426 #define IVTV_YUV_SYNC_MASK              0x04
 427
 428 #define IVTV_YUV_BUFFERS 8
 429
 430 struct yuv_playback_info
 431 {
 432         u32 reg_2834;
 433         u32 reg_2838;
 434         u32 reg_283c;
 435         u32 reg_2840;
 436         u32 reg_2844;
 437         u32 reg_2848;
 438         u32 reg_2854;
 439         u32 reg_285c;
 440         u32 reg_2864;
 441
 442         u32 reg_2870;
 443         u32 reg_2874;
 444         u32 reg_2890;
 445         u32 reg_2898;
 446         u32 reg_289c;
 447
 448         u32 reg_2918;
 449         u32 reg_291c;
 450         u32 reg_2920;
 451         u32 reg_2924;
 452         u32 reg_2928;
 453         u32 reg_292c;
 454         u32 reg_2930;
 455
 456         u32 reg_2934;
 457
 458         u32 reg_2938;
 459         u32 reg_293c;
 460         u32 reg_2940;
 461         u32 reg_2944;
 462         u32 reg_2948;
 463         u32 reg_294c;
 464         u32 reg_2950;
 465         u32 reg_2954;
 466         u32 reg_2958;
 467         u32 reg_295c;
 468         u32 reg_2960;
 469         u32 reg_2964;
 470         u32 reg_2968;
 471         u32 reg_296c;
 472
 473         u32 reg_2970;
 474
 475         int v_filter_1;
 476         int v_filter_2;
 477         int h_filter;
 478
 479         u8 track_osd; /* Should yuv output track the OSD size & position */
 480
 481         u32 osd_x_offset;
 482         u32 osd_y_offset;
 483
 484         u32 osd_x_pan;
 485         u32 osd_y_pan;
 486
 487         u32 osd_vis_w;
 488         u32 osd_vis_h;
 489
 490         u32 osd_full_w;
 491         u32 osd_full_h;
 492
 493         int decode_height;
 494
 495         int lace_mode;
 496         int lace_threshold;
 497         int lace_sync_field;
 498
 499         atomic_t next_dma_frame;
 500         atomic_t next_fill_frame;
 501
 502         u32 yuv_forced_update;
 503         int update_frame;
 504
 505         u8 fields_lapsed;   /* Counter used when delaying a frame */
 506
 507         struct yuv_frame_info new_frame_info[IVTV_YUV_BUFFERS];
 508         struct yuv_frame_info old_frame_info;
 509         struct yuv_frame_info old_frame_info_args;
 510
 511         void *blanking_ptr;
 512         dma_addr_t blanking_dmaptr;
 513
 514         int stream_size;
 515
 516         u8 draw_frame; /* PVR350 buffer to draw into */
 517         u8 max_frames_buffered; /* Maximum number of frames to buffer */
 518
 519         struct v4l2_rect main_rect;
 520         u32 v4l2_src_w;
 521         u32 v4l2_src_h;
 522
 523         u8 running; /* Have any frames been displayed */
 524 };
 525
 526 #define IVTV_VBI_FRAMES 32
 527
 528 /* VBI data */
 529 struct vbi_cc {
 530         u8 odd[2];      /* two-byte payload of odd field */
 531         u8 even[2];     /* two-byte payload of even field */;
 532 };
 533
 534 struct vbi_vps {
 535         u8 data[5];     /* five-byte VPS payload */
 536 };
 537
 538 struct vbi_info {
 539         /* VBI general data, does not change during streaming */
 540
 541         u32 raw_decoder_line_size;              /* raw VBI line size from digitizer */
 542         u8 raw_decoder_sav_odd_field;           /* raw VBI Start Active Video digitizer code of odd field */
 543         u8 raw_decoder_sav_even_field;          /* raw VBI Start Active Video digitizer code of even field */
 544         u32 sliced_decoder_line_size;           /* sliced VBI line size from digitizer */
 545         u8 sliced_decoder_sav_odd_field;        /* sliced VBI Start Active Video digitizer code of odd field */
 546         u8 sliced_decoder_sav_even_field;       /* sliced VBI Start Active Video digitizer code of even field */
 547
 548         u32 start[2];                           /* start of first VBI line in the odd/even fields */
 549         u32 count;                              /* number of VBI lines per field */
 550         u32 raw_size;                           /* size of raw VBI line from the digitizer */
 551         u32 sliced_size;                        /* size of sliced VBI line from the digitizer */
 552
 553         u32 dec_start;                          /* start in decoder memory of VBI re-insertion buffers */
 554         u32 enc_start;                          /* start in encoder memory of VBI capture buffers */
 555         u32 enc_size;                           /* size of VBI capture area */
 556         int fpi;                                /* number of VBI frames per interrupt */
 557
 558         struct v4l2_format in;                  /* current VBI capture format */
 559         struct v4l2_sliced_vbi_format *sliced_in; /* convenience pointer to sliced struct in vbi.in union */
 560         int insert_mpeg;                        /* if non-zero, then embed VBI data in MPEG stream */
 561
 562         /* Raw VBI compatibility hack */
 563
 564         u32 frame;                              /* frame counter hack needed for backwards compatibility
 565                                                    of old VBI software */
 566
 567         /* Sliced VBI output data */
 568
 569         struct vbi_cc cc_payload[256];          /* sliced VBI CC payload array: it is an array to
 570                                                    prevent dropping CC data if they couldn't be
 571                                                    processed fast enough */
 572         int cc_payload_idx;                     /* index in cc_payload */
 573         u8 cc_missing_cnt;                      /* counts number of frames without CC for passthrough mode */
 574         int wss_payload;                        /* sliced VBI WSS payload */
 575         u8 wss_missing_cnt;                     /* counts number of frames without WSS for passthrough mode */
 576         struct vbi_vps vps_payload;             /* sliced VBI VPS payload */
 577
 578         /* Sliced VBI capture data */
 579
 580         struct v4l2_sliced_vbi_data sliced_data[36];    /* sliced VBI storage for VBI encoder stream */
 581         struct v4l2_sliced_vbi_data sliced_dec_data[36];/* sliced VBI storage for VBI decoder stream */
 582
 583         /* VBI Embedding data */
 584
 585         /* Buffer for VBI data inserted into MPEG stream.
 586            The first byte is a dummy byte that's never used.
 587            The next 16 bytes contain the MPEG header for the VBI data,
 588            the remainder is the actual VBI data.
 589            The max size accepted by the MPEG VBI reinsertion turns out
 590            to be 1552 bytes, which happens to be 4 + (1 + 42) * (2 * 18) bytes,
 591            where 4 is a four byte header, 42 is the max sliced VBI payload, 1 is
 592            a single line header byte and 2 * 18 is the number of VBI lines per frame.
 593
 594            However, it seems that the data must be 1K aligned, so we have to
 595            pad the data until the 1 or 2 K boundary.
 596
 597            This pointer array will allocate 2049 bytes to store each VBI frame. */
 598         u8 *sliced_mpeg_data[IVTV_VBI_FRAMES];
 599         u32 sliced_mpeg_size[IVTV_VBI_FRAMES];
 600         struct ivtv_buffer sliced_mpeg_buf;     /* temporary buffer holding data from sliced_mpeg_data */
 601         u32 inserted_frame;                     /* index in sliced_mpeg_size of next sliced data
 602                                                    to be inserted in the MPEG stream */
 603 };
 604
 605 /* forward declaration of struct defined in ivtv-cards.h */
 606 struct ivtv_card;
 607
 608 /* Struct to hold info about ivtv cards */
 609 struct ivtv {
 610         /* General fixed card data */
 611         struct pci_dev *pdev;           /* PCI device */
 612         const struct ivtv_card *card;   /* card information */
 613         const char *card_name;          /* full name of the card */
 614         const struct ivtv_card_tuner_i2c *card_i2c; /* i2c addresses to probe for tuner */
 615         u8 has_cx23415;                 /* 1 if it is a cx23415 based card, 0 for cx23416 */
 616         u8 pvr150_workaround;           /* 1 if the cx25840 needs to workaround a PVR150 bug */
 617         u8 nof_inputs;                  /* number of video inputs */
 618         u8 nof_audio_inputs;            /* number of audio inputs */
 619         u32 v4l2_cap;                   /* V4L2 capabilities of card */
 620         u32 hw_flags;                   /* hardware description of the board */
 621         v4l2_std_id tuner_std;          /* the norm of the card's tuner (fixed) */
 622         struct v4l2_subdev *sd_video;   /* controlling video decoder subdev */
 623         struct v4l2_subdev *sd_audio;   /* controlling audio subdev */
 624         struct v4l2_subdev *sd_muxer;   /* controlling audio muxer subdev */
 625         resource_size_t base_addr;      /* PCI resource base address */
 626         volatile void __iomem *enc_mem; /* pointer to mapped encoder memory */
 627         volatile void __iomem *dec_mem; /* pointer to mapped decoder memory */
 628         volatile void __iomem *reg_mem; /* pointer to mapped registers */
 629         struct ivtv_options options;    /* user options */
 630
 631         struct v4l2_device v4l2_dev;
 632         struct cx2341x_handler cxhdl;
 633         struct {
 634                 /* PTS/Frame count control cluster */
 635                 struct v4l2_ctrl *ctrl_pts;
 636                 struct v4l2_ctrl *ctrl_frame;
 637         };
 638         struct {
 639                 /* Audio Playback control cluster */
 640                 struct v4l2_ctrl *ctrl_audio_playback;
 641                 struct v4l2_ctrl *ctrl_audio_multilingual_playback;
 642         };
 643         struct v4l2_ctrl_handler hdl_gpio;
 644         struct v4l2_subdev sd_gpio;     /* GPIO sub-device */
 645         u16 instance;
 646
 647         /* High-level state info */
 648         unsigned long i_flags;          /* global ivtv flags */
 649         u8 is_50hz;                     /* 1 if the current capture standard is 50 Hz */
 650         u8 is_60hz                      /* 1 if the current capture standard is 60 Hz */;
 651         u8 is_out_50hz                  /* 1 if the current TV output standard is 50 Hz */;
 652         u8 is_out_60hz                  /* 1 if the current TV output standard is 60 Hz */;
 653         int output_mode;                /* decoder output mode: NONE, MPG, YUV, UDMA YUV, passthrough */
 654         u32 audio_input;                /* current audio input */
 655         u32 active_input;               /* current video input */
 656         u32 active_output;              /* current video output */
 657         v4l2_std_id std;                /* current capture TV standard */
 658         v4l2_std_id std_out;            /* current TV output standard */
 659         u8 audio_stereo_mode;           /* decoder setting how to handle stereo MPEG audio */
 660         u8 audio_bilingual_mode;        /* decoder setting how to handle bilingual MPEG audio */
 661
 662         /* Locking */
 663         spinlock_t lock;                /* lock access to this struct */
 664         struct mutex serialize_lock;    /* mutex used to serialize open/close/start/stop/ioctl operations */
 665
 666         /* Streams */
 667         int stream_buf_size[IVTV_MAX_STREAMS];          /* stream buffer size */
 668         struct ivtv_stream streams[IVTV_MAX_STREAMS];   /* stream data */
 669         atomic_t capturing;             /* count number of active capture streams */
 670         atomic_t decoding;              /* count number of active decoding streams */
 671
 672
 673         /* Interrupts & DMA */
 674         u32 irqmask;                    /* active interrupts */
 675         u32 irq_rr_idx;                 /* round-robin stream index */
 676         struct kthread_worker irq_worker;               /* kthread worker for PIO/YUV/VBI actions */
 677         struct task_struct *irq_worker_task;            /* task for irq_worker */
 678         struct kthread_work irq_work;   /* kthread work entry */
 679         spinlock_t dma_reg_lock;        /* lock access to DMA engine registers */
 680         int cur_dma_stream;             /* index of current stream doing DMA (-1 if none) */
 681         int cur_pio_stream;             /* index of current stream doing PIO (-1 if none) */
 682         u32 dma_data_req_offset;        /* store offset in decoder memory of current DMA request */
 683         u32 dma_data_req_size;          /* store size of current DMA request */
 684         int dma_retries;                /* current DMA retry attempt */
 685         struct ivtv_user_dma udma;      /* user based DMA for OSD */
 686         struct timer_list dma_timer;    /* timer used to catch unfinished DMAs */
 687         u32 last_vsync_field;           /* last seen vsync field */
 688         wait_queue_head_t dma_waitq;    /* wake up when the current DMA is finished */
 689         wait_queue_head_t eos_waitq;    /* wake up when EOS arrives */
 690         wait_queue_head_t event_waitq;  /* wake up when the next decoder event arrives */
 691         wait_queue_head_t vsync_waitq;  /* wake up when the next decoder vsync arrives */
 692
 693
 694         /* Mailbox */
 695         struct ivtv_mailbox_data enc_mbox;              /* encoder mailboxes */
 696         struct ivtv_mailbox_data dec_mbox;              /* decoder mailboxes */
 697         struct ivtv_api_cache api_cache[256];           /* cached API commands */
 698
 699
 700         /* I2C */
 701         struct i2c_adapter i2c_adap;
 702         struct i2c_algo_bit_data i2c_algo;
 703         struct i2c_client i2c_client;
 704         int i2c_state;                  /* i2c bit state */
 705         struct mutex i2c_bus_lock;      /* lock i2c bus */
 706
 707         struct IR_i2c_init_data ir_i2c_init_data;
 708
 709         /* Program Index information */
 710         u32 pgm_info_offset;            /* start of pgm info in encoder memory */
 711         u32 pgm_info_num;               /* number of elements in the pgm cyclic buffer in encoder memory */
 712         u32 pgm_info_write_idx;         /* last index written by the card that was transferred to pgm_info[] */
 713         u32 pgm_info_read_idx;          /* last index in pgm_info read by the application */
 714         struct v4l2_enc_idx_entry pgm_info[IVTV_MAX_PGM_INDEX]; /* filled from the pgm cyclic buffer on the card */
 715
 716
 717         /* Miscellaneous */
 718         u32 open_id;                    /* incremented each time an open occurs, is >= 1 */
 719         int search_pack_header;         /* 1 if ivtv_copy_buf_to_user() is scanning for a pack header (0xba) */
 720         int speed;                      /* current playback speed setting */
 721         u8 speed_mute_audio;            /* 1 if audio should be muted when fast forward */
 722         u64 mpg_data_received;          /* number of bytes received from the MPEG stream */
 723         u64 vbi_data_inserted;          /* number of VBI bytes inserted into the MPEG stream */
 724         u32 last_dec_timing[3];         /* cache last retrieved pts/scr/frame values */
 725         unsigned long dualwatch_jiffies;/* jiffies value of the previous dualwatch check */
 726         u32 dualwatch_stereo_mode;      /* current detected dualwatch stereo mode */
 727
 728
 729         /* VBI state info */
 730         struct vbi_info vbi;            /* VBI-specific data */
 731
 732
 733         /* YUV playback */
 734         struct yuv_playback_info yuv_info;              /* YUV playback data */
 735
 736
 737         /* OSD support */
 738         unsigned long osd_video_pbase;
 739         int osd_global_alpha_state;     /* 1 = global alpha is on */
 740         int osd_local_alpha_state;      /* 1 = local alpha is on */
 741         int osd_chroma_key_state;       /* 1 = chroma-keying is on */
 742         u8  osd_global_alpha;           /* current global alpha */
 743         u32 osd_chroma_key;             /* current chroma key */
 744         struct v4l2_rect osd_rect;      /* current OSD position and size */
 745         struct v4l2_rect main_rect;     /* current Main window position and size */
 746         struct osd_info *osd_info;      /* ivtvfb private OSD info */
 747         void (*ivtvfb_restore)(struct ivtv *itv); /* Used for a warm start */
 748 };
 749
 750 static inline struct ivtv *to_ivtv(struct v4l2_device *v4l2_dev)
 751 {
 752         return container_of(v4l2_dev, struct ivtv, v4l2_dev);
 753 }
 754
 755 /* Globals */
 756 extern int ivtv_first_minor;
 757
 758 /*==============Prototypes==================*/
 759
 760 /* Hardware/IRQ */
 761 void ivtv_set_irq_mask(struct ivtv *itv, u32 mask);
 762 void ivtv_clear_irq_mask(struct ivtv *itv, u32 mask);
 763
 764 /* try to set output mode, return current mode. */
 765 int ivtv_set_output_mode(struct ivtv *itv, int mode);
 766
 767 /* return current output stream based on current mode */
 768 struct ivtv_stream *ivtv_get_output_stream(struct ivtv *itv);
 769
 770 /* Return non-zero if a signal is pending */
 771 int ivtv_msleep_timeout(unsigned int msecs, int intr);
 772
 773 /* Wait on queue, returns -EINTR if interrupted */
 774 int ivtv_waitq(wait_queue_head_t *waitq);
 775
 776 /* Read Hauppauge eeprom */
 777 struct tveeprom; /* forward reference */
 778 void ivtv_read_eeprom(struct ivtv *itv, struct tveeprom *tv);
 779
 780 /* First-open initialization: load firmware, init cx25840, etc. */
 781 int ivtv_init_on_first_open(struct ivtv *itv);
 782
 783 /* Test if the current VBI mode is raw (1) or sliced (0) */
 784 static inline int ivtv_raw_vbi(const struct ivtv *itv)
 785 {
 786         return itv->vbi.in.type == V4L2_BUF_TYPE_VBI_CAPTURE;
 787 }
 788
 789 /* This is a PCI post thing, where if the pci register is not read, then
 790    the write doesn't always take effect right away. By reading back the
 791    register any pending PCI writes will be performed (in order), and so
 792    you can be sure that the writes are guaranteed to be done.
 793
 794    Rarely needed, only in some timing sensitive cases.
 795    Apparently if this is not done some motherboards seem
 796    to kill the firmware and get into the broken state until computer is
 797    rebooted. */
 798 #define write_sync(val, reg) \
 799         do { writel(val, reg); readl(reg); } while (0)
 800
 801 #define read_reg(reg) readl(itv->reg_mem + (reg))
 802 #define write_reg(val, reg) writel(val, itv->reg_mem + (reg))
 803 #define write_reg_sync(val, reg) \
 804         do { write_reg(val, reg); read_reg(reg); } while (0)
 805
 806 #define read_enc(addr) readl(itv->enc_mem + (u32)(addr))
 807 #define write_enc(val, addr) writel(val, itv->enc_mem + (u32)(addr))
 808 #define write_enc_sync(val, addr) \
 809         do { write_enc(val, addr); read_enc(addr); } while (0)
 810
 811 #define read_dec(addr) readl(itv->dec_mem + (u32)(addr))
 812 #define write_dec(val, addr) writel(val, itv->dec_mem + (u32)(addr))
 813 #define write_dec_sync(val, addr) \
 814         do { write_dec(val, addr); read_dec(addr); } while (0)
 815
 816 /* Call the specified callback for all subdevs matching hw (if 0, then
 817    match them all). Ignore any errors. */
 818 #define ivtv_call_hw(itv, hw, o, f, args...)                            \
 819         do {                                                            \
 820                 struct v4l2_subdev *__sd;                               \
 821                 __v4l2_device_call_subdevs_p(&(itv)->v4l2_dev, __sd,    \
 822                         !(hw) || (__sd->grp_id & (hw)), o, f , ##args); \
 823         } while (0)
 824
 825 #define ivtv_call_all(itv, o, f, args...) ivtv_call_hw(itv, 0, o, f , ##args)
 826
 827 /* Call the specified callback for all subdevs matching hw (if 0, then
 828    match them all). If the callback returns an error other than 0 or
 829    -ENOIOCTLCMD, then return with that error code. */
 830 #define ivtv_call_hw_err(itv, hw, o, f, args...)                        \
 831 ({                                                                      \
 832         struct v4l2_subdev *__sd;                                       \
 833         __v4l2_device_call_subdevs_until_err_p(&(itv)->v4l2_dev, __sd,  \
 834                 !(hw) || (__sd->grp_id & (hw)), o, f , ##args);         \
 835 })
 836
 837 #define ivtv_call_all_err(itv, o, f, args...) ivtv_call_hw_err(itv, 0, o, f , ##args)
 838
 839 #endif