drivers/media/pci/cx18/cx18-driver.h

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This source file includes following definitions.
fh2id
file2id
to_cx18
cx18_raw_vbi
   1 /* SPDX-License-Identifier: GPL-2.0-or-later */
   2 /*
   3  *  cx18 driver internal defines and structures
   4  *
   5  *  Derived from ivtv-driver.h
   6  *
   7  *  Copyright (C) 2007  Hans Verkuil <hverkuil@xs4all.nl>
   8  *  Copyright (C) 2008  Andy Walls <awalls@md.metrocast.net>
   9  */
  10 
  11 #ifndef CX18_DRIVER_H
  12 #define CX18_DRIVER_H
  13 
  14 #include <linux/module.h>
  15 #include <linux/moduleparam.h>
  16 #include <linux/init.h>
  17 #include <linux/delay.h>
  18 #include <linux/sched/signal.h>
  19 #include <linux/fs.h>
  20 #include <linux/pci.h>
  21 #include <linux/interrupt.h>
  22 #include <linux/spinlock.h>
  23 #include <linux/i2c.h>
  24 #include <linux/i2c-algo-bit.h>
  25 #include <linux/list.h>
  26 #include <linux/unistd.h>
  27 #include <linux/pagemap.h>
  28 #include <linux/workqueue.h>
  29 #include <linux/mutex.h>
  30 #include <linux/slab.h>
  31 #include <asm/byteorder.h>
  32 
  33 #include <media/v4l2-common.h>
  34 #include <media/v4l2-ioctl.h>
  35 #include <media/v4l2-device.h>
  36 #include <media/v4l2-fh.h>
  37 #include <media/tuner.h>
  38 #include <media/i2c/ir-kbd-i2c.h>
  39 #include "cx18-mailbox.h"
  40 #include "cx18-av-core.h"
  41 #include "cx23418.h"
  42 
  43 /* DVB */
  44 #include <media/demux.h>
  45 #include <media/dmxdev.h>
  46 #include <media/dvb_demux.h>
  47 #include <media/dvb_frontend.h>
  48 #include <media/dvb_net.h>
  49 #include <media/dvbdev.h>
  50 
  51 /* Videobuf / YUV support */
  52 #include <media/videobuf-core.h>
  53 #include <media/videobuf-vmalloc.h>
  54 
  55 #ifndef CONFIG_PCI
  56 #  error "This driver requires kernel PCI support."
  57 #endif
  58 
  59 #define CX18_MEM_OFFSET 0x00000000
  60 #define CX18_MEM_SIZE   0x04000000
  61 #define CX18_REG_OFFSET 0x02000000
  62 
  63 /* Maximum cx18 driver instances. */
  64 #define CX18_MAX_CARDS 32
  65 
  66 /* Supported cards */
  67 #define CX18_CARD_HVR_1600_ESMT       0 /* Hauppauge HVR 1600 (ESMT memory) */
  68 #define CX18_CARD_HVR_1600_SAMSUNG    1 /* Hauppauge HVR 1600 (Samsung memory) */
  69 #define CX18_CARD_COMPRO_H900         2 /* Compro VideoMate H900 */
  70 #define CX18_CARD_YUAN_MPC718         3 /* Yuan MPC718 */
  71 #define CX18_CARD_CNXT_RAPTOR_PAL     4 /* Conexant Raptor PAL */
  72 #define CX18_CARD_TOSHIBA_QOSMIO_DVBT 5 /* Toshiba Qosmio Interal DVB-T/Analog*/
  73 #define CX18_CARD_LEADTEK_PVR2100     6 /* Leadtek WinFast PVR2100 */
  74 #define CX18_CARD_LEADTEK_DVR3100H    7 /* Leadtek WinFast DVR3100 H */
  75 #define CX18_CARD_GOTVIEW_PCI_DVD3    8 /* GoTView PCI DVD3 Hybrid */
  76 #define CX18_CARD_HVR_1600_S5H1411    9 /* Hauppauge HVR 1600 s5h1411/tda18271*/
  77 #define CX18_CARD_LAST                9
  78 
  79 #define CX18_ENC_STREAM_TYPE_MPG  0
  80 #define CX18_ENC_STREAM_TYPE_TS   1
  81 #define CX18_ENC_STREAM_TYPE_YUV  2
  82 #define CX18_ENC_STREAM_TYPE_VBI  3
  83 #define CX18_ENC_STREAM_TYPE_PCM  4
  84 #define CX18_ENC_STREAM_TYPE_IDX  5
  85 #define CX18_ENC_STREAM_TYPE_RAD  6
  86 #define CX18_MAX_STREAMS          7
  87 
  88 /* system vendor and device IDs */
  89 #define PCI_VENDOR_ID_CX      0x14f1
  90 #define PCI_DEVICE_ID_CX23418 0x5b7a
  91 
  92 /* subsystem vendor ID */
  93 #define CX18_PCI_ID_HAUPPAUGE           0x0070
  94 #define CX18_PCI_ID_COMPRO              0x185b
  95 #define CX18_PCI_ID_YUAN                0x12ab
  96 #define CX18_PCI_ID_CONEXANT            0x14f1
  97 #define CX18_PCI_ID_TOSHIBA             0x1179
  98 #define CX18_PCI_ID_LEADTEK             0x107D
  99 #define CX18_PCI_ID_GOTVIEW             0x5854
 100 
 101 /* ======================================================================== */
 102 /* ========================== START USER SETTABLE DMA VARIABLES =========== */
 103 /* ======================================================================== */
 104 
 105 /* DMA Buffers, Default size in MB allocated */
 106 #define CX18_DEFAULT_ENC_TS_BUFFERS  1
 107 #define CX18_DEFAULT_ENC_MPG_BUFFERS 2
 108 #define CX18_DEFAULT_ENC_IDX_BUFFERS 1
 109 #define CX18_DEFAULT_ENC_YUV_BUFFERS 2
 110 #define CX18_DEFAULT_ENC_VBI_BUFFERS 1
 111 #define CX18_DEFAULT_ENC_PCM_BUFFERS 1
 112 
 113 /* Maximum firmware DMA buffers per stream */
 114 #define CX18_MAX_FW_MDLS_PER_STREAM 63
 115 
 116 /* YUV buffer sizes in bytes to ensure integer # of frames per buffer */
 117 #define CX18_UNIT_ENC_YUV_BUFSIZE       (720 *  32 * 3 / 2) /* bytes */
 118 #define CX18_625_LINE_ENC_YUV_BUFSIZE   (CX18_UNIT_ENC_YUV_BUFSIZE * 576/32)
 119 #define CX18_525_LINE_ENC_YUV_BUFSIZE   (CX18_UNIT_ENC_YUV_BUFSIZE * 480/32)
 120 
 121 /* IDX buffer size should be a multiple of the index entry size from the chip */
 122 struct cx18_enc_idx_entry {
 123         __le32 length;
 124         __le32 offset_low;
 125         __le32 offset_high;
 126         __le32 flags;
 127         __le32 pts_low;
 128         __le32 pts_high;
 129 } __attribute__ ((packed));
 130 #define CX18_UNIT_ENC_IDX_BUFSIZE \
 131         (sizeof(struct cx18_enc_idx_entry) * V4L2_ENC_IDX_ENTRIES)
 132 
 133 /* DMA buffer, default size in kB allocated */
 134 #define CX18_DEFAULT_ENC_TS_BUFSIZE   32
 135 #define CX18_DEFAULT_ENC_MPG_BUFSIZE  32
 136 #define CX18_DEFAULT_ENC_IDX_BUFSIZE  (CX18_UNIT_ENC_IDX_BUFSIZE * 1 / 1024 + 1)
 137 #define CX18_DEFAULT_ENC_YUV_BUFSIZE  (CX18_UNIT_ENC_YUV_BUFSIZE * 3 / 1024 + 1)
 138 #define CX18_DEFAULT_ENC_PCM_BUFSIZE   4
 139 
 140 /* i2c stuff */
 141 #define I2C_CLIENTS_MAX 16
 142 
 143 /* debugging */
 144 
 145 /* Flag to turn on high volume debugging */
 146 #define CX18_DBGFLG_WARN  (1 << 0)
 147 #define CX18_DBGFLG_INFO  (1 << 1)
 148 #define CX18_DBGFLG_API   (1 << 2)
 149 #define CX18_DBGFLG_DMA   (1 << 3)
 150 #define CX18_DBGFLG_IOCTL (1 << 4)
 151 #define CX18_DBGFLG_FILE  (1 << 5)
 152 #define CX18_DBGFLG_I2C   (1 << 6)
 153 #define CX18_DBGFLG_IRQ   (1 << 7)
 154 /* Flag to turn on high volume debugging */
 155 #define CX18_DBGFLG_HIGHVOL (1 << 8)
 156 
 157 /* NOTE: extra space before comma in 'fmt , ## args' is required for
 158    gcc-2.95, otherwise it won't compile. */
 159 #define CX18_DEBUG(x, type, fmt, args...) \
 160         do { \
 161                 if ((x) & cx18_debug) \
 162                         v4l2_info(&cx->v4l2_dev, " " type ": " fmt , ## args); \
 163         } while (0)
 164 #define CX18_DEBUG_WARN(fmt, args...)  CX18_DEBUG(CX18_DBGFLG_WARN, "warning", fmt , ## args)
 165 #define CX18_DEBUG_INFO(fmt, args...)  CX18_DEBUG(CX18_DBGFLG_INFO, "info", fmt , ## args)
 166 #define CX18_DEBUG_API(fmt, args...)   CX18_DEBUG(CX18_DBGFLG_API, "api", fmt , ## args)
 167 #define CX18_DEBUG_DMA(fmt, args...)   CX18_DEBUG(CX18_DBGFLG_DMA, "dma", fmt , ## args)
 168 #define CX18_DEBUG_IOCTL(fmt, args...) CX18_DEBUG(CX18_DBGFLG_IOCTL, "ioctl", fmt , ## args)
 169 #define CX18_DEBUG_FILE(fmt, args...)  CX18_DEBUG(CX18_DBGFLG_FILE, "file", fmt , ## args)
 170 #define CX18_DEBUG_I2C(fmt, args...)   CX18_DEBUG(CX18_DBGFLG_I2C, "i2c", fmt , ## args)
 171 #define CX18_DEBUG_IRQ(fmt, args...)   CX18_DEBUG(CX18_DBGFLG_IRQ, "irq", fmt , ## args)
 172 
 173 #define CX18_DEBUG_HIGH_VOL(x, type, fmt, args...) \
 174         do { \
 175                 if (((x) & cx18_debug) && (cx18_debug & CX18_DBGFLG_HIGHVOL)) \
 176                         v4l2_info(&cx->v4l2_dev, " " type ": " fmt , ## args); \
 177         } while (0)
 178 #define CX18_DEBUG_HI_WARN(fmt, args...)  CX18_DEBUG_HIGH_VOL(CX18_DBGFLG_WARN, "warning", fmt , ## args)
 179 #define CX18_DEBUG_HI_INFO(fmt, args...)  CX18_DEBUG_HIGH_VOL(CX18_DBGFLG_INFO, "info", fmt , ## args)
 180 #define CX18_DEBUG_HI_API(fmt, args...)   CX18_DEBUG_HIGH_VOL(CX18_DBGFLG_API, "api", fmt , ## args)
 181 #define CX18_DEBUG_HI_DMA(fmt, args...)   CX18_DEBUG_HIGH_VOL(CX18_DBGFLG_DMA, "dma", fmt , ## args)
 182 #define CX18_DEBUG_HI_IOCTL(fmt, args...) CX18_DEBUG_HIGH_VOL(CX18_DBGFLG_IOCTL, "ioctl", fmt , ## args)
 183 #define CX18_DEBUG_HI_FILE(fmt, args...)  CX18_DEBUG_HIGH_VOL(CX18_DBGFLG_FILE, "file", fmt , ## args)
 184 #define CX18_DEBUG_HI_I2C(fmt, args...)   CX18_DEBUG_HIGH_VOL(CX18_DBGFLG_I2C, "i2c", fmt , ## args)
 185 #define CX18_DEBUG_HI_IRQ(fmt, args...)   CX18_DEBUG_HIGH_VOL(CX18_DBGFLG_IRQ, "irq", fmt , ## args)
 186 
 187 /* Standard kernel messages */
 188 #define CX18_ERR(fmt, args...)      v4l2_err(&cx->v4l2_dev, fmt , ## args)
 189 #define CX18_WARN(fmt, args...)     v4l2_warn(&cx->v4l2_dev, fmt , ## args)
 190 #define CX18_INFO(fmt, args...)     v4l2_info(&cx->v4l2_dev, fmt , ## args)
 191 
 192 /* Messages for internal subdevs to use */
 193 #define CX18_DEBUG_DEV(x, dev, type, fmt, args...) \
 194         do { \
 195                 if ((x) & cx18_debug) \
 196                         v4l2_info(dev, " " type ": " fmt , ## args); \
 197         } while (0)
 198 #define CX18_DEBUG_WARN_DEV(dev, fmt, args...) \
 199                 CX18_DEBUG_DEV(CX18_DBGFLG_WARN, dev, "warning", fmt , ## args)
 200 #define CX18_DEBUG_INFO_DEV(dev, fmt, args...) \
 201                 CX18_DEBUG_DEV(CX18_DBGFLG_INFO, dev, "info", fmt , ## args)
 202 #define CX18_DEBUG_API_DEV(dev, fmt, args...) \
 203                 CX18_DEBUG_DEV(CX18_DBGFLG_API, dev, "api", fmt , ## args)
 204 #define CX18_DEBUG_DMA_DEV(dev, fmt, args...) \
 205                 CX18_DEBUG_DEV(CX18_DBGFLG_DMA, dev, "dma", fmt , ## args)
 206 #define CX18_DEBUG_IOCTL_DEV(dev, fmt, args...) \
 207                 CX18_DEBUG_DEV(CX18_DBGFLG_IOCTL, dev, "ioctl", fmt , ## args)
 208 #define CX18_DEBUG_FILE_DEV(dev, fmt, args...) \
 209                 CX18_DEBUG_DEV(CX18_DBGFLG_FILE, dev, "file", fmt , ## args)
 210 #define CX18_DEBUG_I2C_DEV(dev, fmt, args...) \
 211                 CX18_DEBUG_DEV(CX18_DBGFLG_I2C, dev, "i2c", fmt , ## args)
 212 #define CX18_DEBUG_IRQ_DEV(dev, fmt, args...) \
 213                 CX18_DEBUG_DEV(CX18_DBGFLG_IRQ, dev, "irq", fmt , ## args)
 214 
 215 #define CX18_DEBUG_HIGH_VOL_DEV(x, dev, type, fmt, args...) \
 216         do { \
 217                 if (((x) & cx18_debug) && (cx18_debug & CX18_DBGFLG_HIGHVOL)) \
 218                         v4l2_info(dev, " " type ": " fmt , ## args); \
 219         } while (0)
 220 #define CX18_DEBUG_HI_WARN_DEV(dev, fmt, args...) \
 221         CX18_DEBUG_HIGH_VOL_DEV(CX18_DBGFLG_WARN, dev, "warning", fmt , ## args)
 222 #define CX18_DEBUG_HI_INFO_DEV(dev, fmt, args...) \
 223         CX18_DEBUG_HIGH_VOL_DEV(CX18_DBGFLG_INFO, dev, "info", fmt , ## args)
 224 #define CX18_DEBUG_HI_API_DEV(dev, fmt, args...) \
 225         CX18_DEBUG_HIGH_VOL_DEV(CX18_DBGFLG_API, dev, "api", fmt , ## args)
 226 #define CX18_DEBUG_HI_DMA_DEV(dev, fmt, args...) \
 227         CX18_DEBUG_HIGH_VOL_DEV(CX18_DBGFLG_DMA, dev, "dma", fmt , ## args)
 228 #define CX18_DEBUG_HI_IOCTL_DEV(dev, fmt, args...) \
 229         CX18_DEBUG_HIGH_VOL_DEV(CX18_DBGFLG_IOCTL, dev, "ioctl", fmt , ## args)
 230 #define CX18_DEBUG_HI_FILE_DEV(dev, fmt, args...) \
 231         CX18_DEBUG_HIGH_VOL_DEV(CX18_DBGFLG_FILE, dev, "file", fmt , ## args)
 232 #define CX18_DEBUG_HI_I2C_DEV(dev, fmt, args...) \
 233         CX18_DEBUG_HIGH_VOL_DEV(CX18_DBGFLG_I2C, dev, "i2c", fmt , ## args)
 234 #define CX18_DEBUG_HI_IRQ_DEV(dev, fmt, args...) \
 235         CX18_DEBUG_HIGH_VOL_DEV(CX18_DBGFLG_IRQ, dev, "irq", fmt , ## args)
 236 
 237 #define CX18_ERR_DEV(dev, fmt, args...)      v4l2_err(dev, fmt , ## args)
 238 #define CX18_WARN_DEV(dev, fmt, args...)     v4l2_warn(dev, fmt , ## args)
 239 #define CX18_INFO_DEV(dev, fmt, args...)     v4l2_info(dev, fmt , ## args)
 240 
 241 extern int cx18_debug;
 242 
 243 struct cx18_options {
 244         int megabytes[CX18_MAX_STREAMS]; /* Size in megabytes of each stream */
 245         int cardtype;           /* force card type on load */
 246         int tuner;              /* set tuner on load */
 247         int radio;              /* enable/disable radio */
 248 };
 249 
 250 /* per-mdl bit flags */
 251 #define CX18_F_M_NEED_SWAP  0   /* mdl buffer data must be endianness swapped */
 252 
 253 /* per-stream, s_flags */
 254 #define CX18_F_S_CLAIMED        3       /* this stream is claimed */
 255 #define CX18_F_S_STREAMING      4       /* the fw is decoding/encoding this stream */
 256 #define CX18_F_S_INTERNAL_USE   5       /* this stream is used internally (sliced VBI processing) */
 257 #define CX18_F_S_STREAMOFF      7       /* signal end of stream EOS */
 258 #define CX18_F_S_APPL_IO        8       /* this stream is used read/written by an application */
 259 #define CX18_F_S_STOPPING       9       /* telling the fw to stop capturing */
 260 
 261 /* per-cx18, i_flags */
 262 #define CX18_F_I_LOADED_FW              0       /* Loaded firmware 1st time */
 263 #define CX18_F_I_EOS                    4       /* End of encoder stream */
 264 #define CX18_F_I_RADIO_USER             5       /* radio tuner is selected */
 265 #define CX18_F_I_ENC_PAUSED             13      /* the encoder is paused */
 266 #define CX18_F_I_INITED                 21      /* set after first open */
 267 #define CX18_F_I_FAILED                 22      /* set if first open failed */
 268 
 269 /* These are the VBI types as they appear in the embedded VBI private packets. */
 270 #define CX18_SLICED_TYPE_TELETEXT_B     (1)
 271 #define CX18_SLICED_TYPE_CAPTION_525    (4)
 272 #define CX18_SLICED_TYPE_WSS_625        (5)
 273 #define CX18_SLICED_TYPE_VPS            (7)
 274 
 275 /**
 276  * list_entry_is_past_end - check if a previous loop cursor is off list end
 277  * @pos:        the type * previously used as a loop cursor.
 278  * @head:       the head for your list.
 279  * @member:     the name of the list_head within the struct.
 280  *
 281  * Check if the entry's list_head is the head of the list, thus it's not a
 282  * real entry but was the loop cursor that walked past the end
 283  */
 284 #define list_entry_is_past_end(pos, head, member) \
 285         (&pos->member == (head))
 286 
 287 struct cx18_buffer {
 288         struct list_head list;
 289         dma_addr_t dma_handle;
 290         char *buf;
 291 
 292         u32 bytesused;
 293         u32 readpos;
 294 };
 295 
 296 struct cx18_mdl {
 297         struct list_head list;
 298         u32 id;         /* index into cx->scb->cpu_mdl[] of 1st cx18_mdl_ent */
 299 
 300         unsigned int skipped;
 301         unsigned long m_flags;
 302 
 303         struct list_head buf_list;
 304         struct cx18_buffer *curr_buf; /* current buffer in list for reading */
 305 
 306         u32 bytesused;
 307         u32 readpos;
 308 };
 309 
 310 struct cx18_queue {
 311         struct list_head list;
 312         atomic_t depth;
 313         u32 bytesused;
 314         spinlock_t lock;
 315 };
 316 
 317 struct cx18_stream; /* forward reference */
 318 
 319 struct cx18_dvb {
 320         struct cx18_stream *stream;
 321         struct dmx_frontend hw_frontend;
 322         struct dmx_frontend mem_frontend;
 323         struct dmxdev dmxdev;
 324         struct dvb_adapter dvb_adapter;
 325         struct dvb_demux demux;
 326         struct dvb_frontend *fe;
 327         struct dvb_net dvbnet;
 328         int enabled;
 329         int feeding;
 330         struct mutex feedlock;
 331 };
 332 
 333 struct cx18;     /* forward reference */
 334 struct cx18_scb; /* forward reference */
 335 
 336 
 337 #define CX18_MAX_MDL_ACKS 2
 338 #define CX18_MAX_IN_WORK_ORDERS (CX18_MAX_FW_MDLS_PER_STREAM + 7)
 339 /* CPU_DE_RELEASE_MDL can burst CX18_MAX_FW_MDLS_PER_STREAM orders in a group */
 340 
 341 #define CX18_F_EWO_MB_STALE_UPON_RECEIPT 0x1
 342 #define CX18_F_EWO_MB_STALE_WHILE_PROC   0x2
 343 #define CX18_F_EWO_MB_STALE \
 344              (CX18_F_EWO_MB_STALE_UPON_RECEIPT | CX18_F_EWO_MB_STALE_WHILE_PROC)
 345 
 346 struct cx18_in_work_order {
 347         struct work_struct work;
 348         atomic_t pending;
 349         struct cx18 *cx;
 350         unsigned long flags;
 351         int rpu;
 352         struct cx18_mailbox mb;
 353         struct cx18_mdl_ack mdl_ack[CX18_MAX_MDL_ACKS];
 354         char *str;
 355 };
 356 
 357 #define CX18_INVALID_TASK_HANDLE 0xffffffff
 358 
 359 struct cx18_stream {
 360         /* These first five fields are always set, even if the stream
 361            is not actually created. */
 362         struct video_device video_dev;  /* v4l2_dev is NULL when stream not created */
 363         struct cx18_dvb *dvb;           /* DVB / Digital Transport */
 364         struct cx18 *cx;                /* for ease of use */
 365         const char *name;               /* name of the stream */
 366         int type;                       /* stream type */
 367         u32 handle;                     /* task handle */
 368         u32 v4l2_dev_caps;              /* device capabilities */
 369         unsigned int mdl_base_idx;
 370 
 371         u32 id;
 372         unsigned long s_flags;  /* status flags, see above */
 373         int dma;                /* can be PCI_DMA_TODEVICE,
 374                                    PCI_DMA_FROMDEVICE or
 375                                    PCI_DMA_NONE */
 376         wait_queue_head_t waitq;
 377 
 378         /* Buffers */
 379         struct list_head buf_pool;      /* buffers not attached to an MDL */
 380         u32 buffers;                    /* total buffers owned by this stream */
 381         u32 buf_size;                   /* size in bytes of a single buffer */
 382 
 383         /* MDL sizes - all stream MDLs are the same size */
 384         u32 bufs_per_mdl;
 385         u32 mdl_size;           /* total bytes in all buffers in a mdl */
 386 
 387         /* MDL Queues */
 388         struct cx18_queue q_free;       /* free - in rotation, not committed */
 389         struct cx18_queue q_busy;       /* busy - in use by firmware */
 390         struct cx18_queue q_full;       /* full - data for user apps */
 391         struct cx18_queue q_idle;       /* idle - not in rotation */
 392 
 393         struct work_struct out_work_order;
 394 
 395         /* Videobuf for YUV video */
 396         u32 pixelformat;
 397         u32 vb_bytes_per_frame;
 398         u32 vb_bytes_per_line;
 399         struct list_head vb_capture;    /* video capture queue */
 400         spinlock_t vb_lock;
 401         struct timer_list vb_timeout;
 402 
 403         struct videobuf_queue vbuf_q;
 404         spinlock_t vbuf_q_lock; /* Protect vbuf_q */
 405         enum v4l2_buf_type vb_type;
 406 };
 407 
 408 struct cx18_videobuf_buffer {
 409         /* Common video buffer sub-system struct */
 410         struct videobuf_buffer vb;
 411         v4l2_std_id tvnorm; /* selected tv norm */
 412         u32 bytes_used;
 413 };
 414 
 415 struct cx18_open_id {
 416         struct v4l2_fh fh;
 417         u32 open_id;
 418         int type;
 419         struct cx18 *cx;
 420 };
 421 
 422 static inline struct cx18_open_id *fh2id(struct v4l2_fh *fh)
 423 {
 424         return container_of(fh, struct cx18_open_id, fh);
 425 }
 426 
 427 static inline struct cx18_open_id *file2id(struct file *file)
 428 {
 429         return fh2id(file->private_data);
 430 }
 431 
 432 /* forward declaration of struct defined in cx18-cards.h */
 433 struct cx18_card;
 434 
 435 /*
 436  * A note about "sliced" VBI data as implemented in this driver:
 437  *
 438  * Currently we collect the sliced VBI in the form of Ancillary Data
 439  * packets, inserted by the AV core decoder/digitizer/slicer in the
 440  * horizontal blanking region of the VBI lines, in "raw" mode as far as
 441  * the Encoder is concerned.  We don't ever tell the Encoder itself
 442  * to provide sliced VBI. (AV Core: sliced mode - Encoder: raw mode)
 443  *
 444  * We then process the ancillary data ourselves to send the sliced data
 445  * to the user application directly or build up MPEG-2 private stream 1
 446  * packets to splice into (only!) MPEG-2 PS streams for the user app.
 447  *
 448  * (That's how ivtv essentially does it.)
 449  *
 450  * The Encoder should be able to extract certain sliced VBI data for
 451  * us and provide it in a separate stream or splice it into any type of
 452  * MPEG PS or TS stream, but this isn't implemented yet.
 453  */
 454 
 455 /*
 456  * Number of "raw" VBI samples per horizontal line we tell the Encoder to
 457  * grab from the decoder/digitizer/slicer output for raw or sliced VBI.
 458  * It depends on the pixel clock and the horiz rate:
 459  *
 460  * (1/Fh)*(2*Fp) = Samples/line
 461  *     = 4 bytes EAV + Anc data in hblank + 4 bytes SAV + active samples
 462  *
 463  *  Sliced VBI data is sent as ancillary data during horizontal blanking
 464  *  Raw VBI is sent as active video samples during vertcal blanking
 465  *
 466  *  We use a  BT.656 pxiel clock of 13.5 MHz and a BT.656 active line
 467  *  length of 720 pixels @ 4:2:2 sampling.  Thus...
 468  *
 469  *  For systems that use a 15.734 kHz horizontal rate, such as
 470  *  NTSC-M, PAL-M, PAL-60, and other 60 Hz/525 line systems, we have:
 471  *
 472  *  (1/15.734 kHz) * 2 * 13.5 MHz = 1716 samples/line =
 473  *  4 bytes SAV + 268 bytes anc data + 4 bytes SAV + 1440 active samples
 474  *
 475  *  For systems that use a 15.625 kHz horizontal rate, such as
 476  *  PAL-B/G/H, PAL-I, SECAM-L and other 50 Hz/625 line systems, we have:
 477  *
 478  *  (1/15.625 kHz) * 2 * 13.5 MHz = 1728 samples/line =
 479  *  4 bytes SAV + 280 bytes anc data + 4 bytes SAV + 1440 active samples
 480  */
 481 #define VBI_ACTIVE_SAMPLES      1444 /* 4 byte SAV + 720 Y + 720 U/V */
 482 #define VBI_HBLANK_SAMPLES_60HZ 272 /* 4 byte EAV + 268 anc/fill */
 483 #define VBI_HBLANK_SAMPLES_50HZ 284 /* 4 byte EAV + 280 anc/fill */
 484 
 485 #define CX18_VBI_FRAMES 32
 486 
 487 struct vbi_info {
 488         /* Current state of v4l2 VBI settings for this device */
 489         struct v4l2_format in;
 490         struct v4l2_sliced_vbi_format *sliced_in; /* pointer to in.fmt.sliced */
 491         u32 count;    /* Count of VBI data lines: 60 Hz: 12 or 50 Hz: 18 */
 492         u32 start[2]; /* First VBI data line per field: 10 & 273 or 6 & 318 */
 493 
 494         u32 frame; /* Count of VBI buffers/frames received from Encoder */
 495 
 496         /*
 497          * Vars for creation and insertion of MPEG Private Stream 1 packets
 498          * of sliced VBI data into an MPEG PS
 499          */
 500 
 501         /* Boolean: create and insert Private Stream 1 packets into the PS */
 502         int insert_mpeg;
 503 
 504         /*
 505          * Buffer for the maximum of 2 * 18 * packet_size sliced VBI lines.
 506          * Used in cx18-vbi.c only for collecting sliced data, and as a source
 507          * during conversion of sliced VBI data into MPEG Priv Stream 1 packets.
 508          * We don't need to save state here, but the array may have been a bit
 509          * too big (2304 bytes) to alloc from the stack.
 510          */
 511         struct v4l2_sliced_vbi_data sliced_data[36];
 512 
 513         /*
 514          * A ring buffer of driver-generated MPEG-2 PS
 515          * Program Pack/Private Stream 1 packets for sliced VBI data insertion
 516          * into the MPEG PS stream.
 517          *
 518          * In each sliced_mpeg_data[] buffer is:
 519          *      16 byte MPEG-2 PS Program Pack Header
 520          *      16 byte MPEG-2 Private Stream 1 PES Header
 521          *       4 byte magic number: "itv0" or "ITV0"
 522          *       4 byte first  field line mask, if "itv0"
 523          *       4 byte second field line mask, if "itv0"
 524          *      36 lines, if "ITV0"; or <36 lines, if "itv0"; of sliced VBI data
 525          *
 526          *      Each line in the payload is
 527          *       1 byte line header derived from the SDID (WSS, CC, VPS, etc.)
 528          *      42 bytes of line data
 529          *
 530          * That's a maximum 1552 bytes of payload in the Private Stream 1 packet
 531          * which is the payload size a PVR-350 (CX23415) MPEG decoder will
 532          * accept for VBI data. So, including the headers, it's a maximum 1584
 533          * bytes total.
 534          */
 535 #define CX18_SLICED_MPEG_DATA_MAXSZ     1584
 536         /* copy_vbi_buf() needs 8 temp bytes on the end for the worst case */
 537 #define CX18_SLICED_MPEG_DATA_BUFSZ     (CX18_SLICED_MPEG_DATA_MAXSZ+8)
 538         u8 *sliced_mpeg_data[CX18_VBI_FRAMES];
 539         u32 sliced_mpeg_size[CX18_VBI_FRAMES];
 540 
 541         /* Count of Program Pack/Program Stream 1 packets inserted into PS */
 542         u32 inserted_frame;
 543 
 544         /*
 545          * A dummy driver stream transfer mdl & buffer with a copy of the next
 546          * sliced_mpeg_data[] buffer for output to userland apps.
 547          * Only used in cx18-fileops.c, but its state needs to persist at times.
 548          */
 549         struct cx18_mdl sliced_mpeg_mdl;
 550         struct cx18_buffer sliced_mpeg_buf;
 551 };
 552 
 553 /* Per cx23418, per I2C bus private algo callback data */
 554 struct cx18_i2c_algo_callback_data {
 555         struct cx18 *cx;
 556         int bus_index;   /* 0 or 1 for the cx23418's 1st or 2nd I2C bus */
 557 };
 558 
 559 #define CX18_MAX_MMIO_WR_RETRIES 10
 560 
 561 /* Struct to hold info about cx18 cards */
 562 struct cx18 {
 563         int instance;
 564         struct pci_dev *pci_dev;
 565         struct v4l2_device v4l2_dev;
 566         struct v4l2_subdev *sd_av;     /* A/V decoder/digitizer sub-device */
 567         struct v4l2_subdev *sd_extmux; /* External multiplexer sub-dev */
 568 
 569         const struct cx18_card *card;   /* card information */
 570         const char *card_name;  /* full name of the card */
 571         const struct cx18_card_tuner_i2c *card_i2c; /* i2c addresses to probe for tuner */
 572         u8 is_50hz;
 573         u8 is_60hz;
 574         u8 nof_inputs;          /* number of video inputs */
 575         u8 nof_audio_inputs;    /* number of audio inputs */
 576         u32 v4l2_cap;           /* V4L2 capabilities of card */
 577         u32 hw_flags;           /* Hardware description of the board */
 578         unsigned int free_mdl_idx;
 579         struct cx18_scb __iomem *scb; /* pointer to SCB */
 580         struct mutex epu2apu_mb_lock; /* protect driver to chip mailbox in SCB*/
 581         struct mutex epu2cpu_mb_lock; /* protect driver to chip mailbox in SCB*/
 582 
 583         struct cx18_av_state av_state;
 584 
 585         /* codec settings */
 586         struct cx2341x_handler cxhdl;
 587         u32 filter_mode;
 588         u32 temporal_strength;
 589         u32 spatial_strength;
 590 
 591         /* dualwatch */
 592         unsigned long dualwatch_jiffies;
 593         u32 dualwatch_stereo_mode;
 594 
 595         struct mutex serialize_lock;    /* mutex used to serialize open/close/start/stop/ioctl operations */
 596         struct cx18_options options;    /* User options */
 597         int stream_buffers[CX18_MAX_STREAMS]; /* # of buffers for each stream */
 598         int stream_buf_size[CX18_MAX_STREAMS]; /* Stream buffer size */
 599         struct cx18_stream streams[CX18_MAX_STREAMS];   /* Stream data */
 600         struct snd_cx18_card *alsa; /* ALSA interface for PCM capture stream */
 601         void (*pcm_announce_callback)(struct snd_cx18_card *card, u8 *pcm_data,
 602                                       size_t num_bytes);
 603 
 604         unsigned long i_flags;  /* global cx18 flags */
 605         atomic_t ana_capturing; /* count number of active analog capture streams */
 606         atomic_t tot_capturing; /* total count number of active capture streams */
 607         int search_pack_header;
 608 
 609         int open_id;            /* incremented each time an open occurs, used as
 610                                    unique ID. Starts at 1, so 0 can be used as
 611                                    uninitialized value in the stream->id. */
 612 
 613         resource_size_t base_addr;
 614 
 615         u8 card_rev;
 616         void __iomem *enc_mem, *reg_mem;
 617 
 618         struct vbi_info vbi;
 619 
 620         u64 mpg_data_received;
 621         u64 vbi_data_inserted;
 622 
 623         wait_queue_head_t mb_apu_waitq;
 624         wait_queue_head_t mb_cpu_waitq;
 625         wait_queue_head_t cap_w;
 626         /* when the current DMA is finished this queue is woken up */
 627         wait_queue_head_t dma_waitq;
 628 
 629         u32 sw1_irq_mask;
 630         u32 sw2_irq_mask;
 631         u32 hw2_irq_mask;
 632 
 633         struct workqueue_struct *in_work_queue;
 634         char in_workq_name[11]; /* "cx18-NN-in" */
 635         struct cx18_in_work_order in_work_order[CX18_MAX_IN_WORK_ORDERS];
 636         char epu_debug_str[256]; /* CX18_EPU_DEBUG is rare: use shared space */
 637 
 638         /* i2c */
 639         struct i2c_adapter i2c_adap[2];
 640         struct i2c_algo_bit_data i2c_algo[2];
 641         struct cx18_i2c_algo_callback_data i2c_algo_cb_data[2];
 642 
 643         struct IR_i2c_init_data ir_i2c_init_data;
 644 
 645         /* gpio */
 646         u32 gpio_dir;
 647         u32 gpio_val;
 648         struct mutex gpio_lock;
 649         struct v4l2_subdev sd_gpiomux;
 650         struct v4l2_subdev sd_resetctrl;
 651 
 652         /* v4l2 and User settings */
 653 
 654         /* codec settings */
 655         u32 audio_input;
 656         u32 active_input;
 657         v4l2_std_id std;
 658         v4l2_std_id tuner_std;  /* The norm of the tuner (fixed) */
 659 
 660         /* Used for cx18-alsa module loading */
 661         struct work_struct request_module_wk;
 662 };
 663 
 664 static inline struct cx18 *to_cx18(struct v4l2_device *v4l2_dev)
 665 {
 666         return container_of(v4l2_dev, struct cx18, v4l2_dev);
 667 }
 668 
 669 /* cx18 extensions to be loaded */
 670 extern int (*cx18_ext_init)(struct cx18 *);
 671 
 672 /* Globals */
 673 extern int cx18_first_minor;
 674 
 675 /*==============Prototypes==================*/
 676 
 677 /* Return non-zero if a signal is pending */
 678 int cx18_msleep_timeout(unsigned int msecs, int intr);
 679 
 680 /* Read Hauppauge eeprom */
 681 struct tveeprom; /* forward reference */
 682 void cx18_read_eeprom(struct cx18 *cx, struct tveeprom *tv);
 683 
 684 /* First-open initialization: load firmware, etc. */
 685 int cx18_init_on_first_open(struct cx18 *cx);
 686 
 687 /* Test if the current VBI mode is raw (1) or sliced (0) */
 688 static inline int cx18_raw_vbi(const struct cx18 *cx)
 689 {
 690         return cx->vbi.in.type == V4L2_BUF_TYPE_VBI_CAPTURE;
 691 }
 692 
 693 /* Call the specified callback for all subdevs with a grp_id bit matching the
 694  * mask in hw (if 0, then match them all). Ignore any errors. */
 695 #define cx18_call_hw(cx, hw, o, f, args...)                             \
 696         v4l2_device_mask_call_all(&(cx)->v4l2_dev, hw, o, f, ##args)
 697 
 698 #define cx18_call_all(cx, o, f, args...) cx18_call_hw(cx, 0, o, f , ##args)
 699 
 700 /* Call the specified callback for all subdevs with a grp_id bit matching the
 701  * mask in hw (if 0, then match them all). If the callback returns an error
 702  * other than 0 or -ENOIOCTLCMD, then return with that error code. */
 703 #define cx18_call_hw_err(cx, hw, o, f, args...)                         \
 704         v4l2_device_mask_call_until_err(&(cx)->v4l2_dev, hw, o, f, ##args)
 705 
 706 #define cx18_call_all_err(cx, o, f, args...) \
 707         cx18_call_hw_err(cx, 0, o, f , ##args)
 708 
 709 #endif /* CX18_DRIVER_H */
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root/drivers/media/pci/cx18/cx18-driver.h

INCLUDED FROM

DEFINITIONS
