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

   1 /*
   2  *  cx18 driver internal defines and structures
   3  *
   4  *  Derived from ivtv-driver.h
   5  *
   6  *  Copyright (C) 2007  Hans Verkuil <hverkuil@xs4all.nl>
   7  *
   8  *  This program is free software; you can redistribute it and/or modify
   9  *  it under the terms of the GNU General Public License as published by
  10  *  the Free Software Foundation; either version 2 of the License, or
  11  *  (at your option) any later version.
  12  *
  13  *  This program is distributed in the hope that it will be useful,
  14  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16  *  GNU General Public License for more details.
  17  *
  18  *  You should have received a copy of the GNU General Public License
  19  *  along with this program; if not, write to the Free Software
  20  *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
  21  *  02111-1307  USA
  22  */
  23
  24 #ifndef CX18_DRIVER_H
  25 #define CX18_DRIVER_H
  26
  27 #include <linux/version.h>
  28 #include <linux/module.h>
  29 #include <linux/moduleparam.h>
  30 #include <linux/init.h>
  31 #include <linux/delay.h>
  32 #include <linux/sched.h>
  33 #include <linux/fs.h>
  34 #include <linux/pci.h>
  35 #include <linux/interrupt.h>
  36 #include <linux/spinlock.h>
  37 #include <linux/i2c.h>
  38 #include <linux/i2c-algo-bit.h>
  39 #include <linux/list.h>
  40 #include <linux/unistd.h>
  41 #include <linux/pagemap.h>
  42 #include <linux/workqueue.h>
  43 #include <linux/mutex.h>
  44 #include <asm/byteorder.h>
  45
  46 #include <linux/dvb/video.h>
  47 #include <linux/dvb/audio.h>
  48 #include <media/v4l2-common.h>
  49 #include <media/v4l2-ioctl.h>
  50 #include <media/tuner.h>
  51 #include "cx18-mailbox.h"
  52 #include "cx18-av-core.h"
  53 #include "cx23418.h"
  54
  55 /* DVB */
  56 #include "demux.h"
  57 #include "dmxdev.h"
  58 #include "dvb_demux.h"
  59 #include "dvb_frontend.h"
  60 #include "dvb_net.h"
  61 #include "dvbdev.h"
  62
  63 #ifndef CONFIG_PCI
  64 #  error "This driver requires kernel PCI support."
  65 #endif
  66
  67 /* Default delay to throttle mmio access to the CX23418 */
  68 #define CX18_DEFAULT_MMIO_NDELAY 0 /* 0 ns = 0 PCI clock(s) / 33 MHz */
  69
  70 #define CX18_MEM_OFFSET 0x00000000
  71 #define CX18_MEM_SIZE   0x04000000
  72 #define CX18_REG_OFFSET 0x02000000
  73
  74 /* Maximum cx18 driver instances. */
  75 #define CX18_MAX_CARDS 32
  76
  77 /* Supported cards */
  78 #define CX18_CARD_HVR_1600_ESMT       0 /* Hauppauge HVR 1600 (ESMT memory) */
  79 #define CX18_CARD_HVR_1600_SAMSUNG    1 /* Hauppauge HVR 1600 (Samsung memory) */
  80 #define CX18_CARD_COMPRO_H900         2 /* Compro VideoMate H900 */
  81 #define CX18_CARD_YUAN_MPC718         3 /* Yuan MPC718 */
  82 #define CX18_CARD_CNXT_RAPTOR_PAL     4 /* Conexant Raptor PAL */
  83 #define CX18_CARD_TOSHIBA_QOSMIO_DVBT 5 /* Toshiba Qosmio Interal DVB-T/Analog*/
  84 #define CX18_CARD_LEADTEK_PVR2100     6 /* Leadtek WinFast PVR2100 */
  85 #define CX18_CARD_LAST                6
  86
  87 #define CX18_ENC_STREAM_TYPE_MPG  0
  88 #define CX18_ENC_STREAM_TYPE_TS   1
  89 #define CX18_ENC_STREAM_TYPE_YUV  2
  90 #define CX18_ENC_STREAM_TYPE_VBI  3
  91 #define CX18_ENC_STREAM_TYPE_PCM  4
  92 #define CX18_ENC_STREAM_TYPE_IDX  5
  93 #define CX18_ENC_STREAM_TYPE_RAD  6
  94 #define CX18_MAX_STREAMS          7
  95
  96 /* system vendor and device IDs */
  97 #define PCI_VENDOR_ID_CX      0x14f1
  98 #define PCI_DEVICE_ID_CX23418 0x5b7a
  99
 100 /* subsystem vendor ID */
 101 #define CX18_PCI_ID_HAUPPAUGE           0x0070
 102 #define CX18_PCI_ID_COMPRO              0x185b
 103 #define CX18_PCI_ID_YUAN                0x12ab
 104 #define CX18_PCI_ID_CONEXANT            0x14f1
 105 #define CX18_PCI_ID_TOSHIBA             0x1179
 106 #define CX18_PCI_ID_LEADTEK             0x107D
 107
 108 /* ======================================================================== */
 109 /* ========================== START USER SETTABLE DMA VARIABLES =========== */
 110 /* ======================================================================== */
 111
 112 /* DMA Buffers, Default size in MB allocated */
 113 #define CX18_DEFAULT_ENC_TS_BUFFERS  1
 114 #define CX18_DEFAULT_ENC_MPG_BUFFERS 2
 115 #define CX18_DEFAULT_ENC_IDX_BUFFERS 1
 116 #define CX18_DEFAULT_ENC_YUV_BUFFERS 2
 117 #define CX18_DEFAULT_ENC_VBI_BUFFERS 1
 118 #define CX18_DEFAULT_ENC_PCM_BUFFERS 1
 119
 120 /* i2c stuff */
 121 #define I2C_CLIENTS_MAX 16
 122
 123 /* debugging */
 124
 125 /* Flag to turn on high volume debugging */
 126 #define CX18_DBGFLG_WARN  (1 << 0)
 127 #define CX18_DBGFLG_INFO  (1 << 1)
 128 #define CX18_DBGFLG_API   (1 << 2)
 129 #define CX18_DBGFLG_DMA   (1 << 3)
 130 #define CX18_DBGFLG_IOCTL (1 << 4)
 131 #define CX18_DBGFLG_FILE  (1 << 5)
 132 #define CX18_DBGFLG_I2C   (1 << 6)
 133 #define CX18_DBGFLG_IRQ   (1 << 7)
 134 /* Flag to turn on high volume debugging */
 135 #define CX18_DBGFLG_HIGHVOL (1 << 8)
 136
 137 /* NOTE: extra space before comma in 'cx->num , ## args' is required for
 138    gcc-2.95, otherwise it won't compile. */
 139 #define CX18_DEBUG(x, type, fmt, args...) \
 140         do { \
 141                 if ((x) & cx18_debug) \
 142                         printk(KERN_INFO "cx18-%d " type ": " fmt, cx->num , ## args); \
 143         } while (0)
 144 #define CX18_DEBUG_WARN(fmt, args...)  CX18_DEBUG(CX18_DBGFLG_WARN, "warning", fmt , ## args)
 145 #define CX18_DEBUG_INFO(fmt, args...)  CX18_DEBUG(CX18_DBGFLG_INFO, "info", fmt , ## args)
 146 #define CX18_DEBUG_API(fmt, args...)   CX18_DEBUG(CX18_DBGFLG_API, "api", fmt , ## args)
 147 #define CX18_DEBUG_DMA(fmt, args...)   CX18_DEBUG(CX18_DBGFLG_DMA, "dma", fmt , ## args)
 148 #define CX18_DEBUG_IOCTL(fmt, args...) CX18_DEBUG(CX18_DBGFLG_IOCTL, "ioctl", fmt , ## args)
 149 #define CX18_DEBUG_FILE(fmt, args...)  CX18_DEBUG(CX18_DBGFLG_FILE, "file", fmt , ## args)
 150 #define CX18_DEBUG_I2C(fmt, args...)   CX18_DEBUG(CX18_DBGFLG_I2C, "i2c", fmt , ## args)
 151 #define CX18_DEBUG_IRQ(fmt, args...)   CX18_DEBUG(CX18_DBGFLG_IRQ, "irq", fmt , ## args)
 152
 153 #define CX18_DEBUG_HIGH_VOL(x, type, fmt, args...) \
 154         do { \
 155                 if (((x) & cx18_debug) && (cx18_debug & CX18_DBGFLG_HIGHVOL)) \
 156                         printk(KERN_INFO "cx18%d " type ": " fmt, cx->num , ## args); \
 157         } while (0)
 158 #define CX18_DEBUG_HI_WARN(fmt, args...)  CX18_DEBUG_HIGH_VOL(CX18_DBGFLG_WARN, "warning", fmt , ## args)
 159 #define CX18_DEBUG_HI_INFO(fmt, args...)  CX18_DEBUG_HIGH_VOL(CX18_DBGFLG_INFO, "info", fmt , ## args)
 160 #define CX18_DEBUG_HI_API(fmt, args...)   CX18_DEBUG_HIGH_VOL(CX18_DBGFLG_API, "api", fmt , ## args)
 161 #define CX18_DEBUG_HI_DMA(fmt, args...)   CX18_DEBUG_HIGH_VOL(CX18_DBGFLG_DMA, "dma", fmt , ## args)
 162 #define CX18_DEBUG_HI_IOCTL(fmt, args...) CX18_DEBUG_HIGH_VOL(CX18_DBGFLG_IOCTL, "ioctl", fmt , ## args)
 163 #define CX18_DEBUG_HI_FILE(fmt, args...)  CX18_DEBUG_HIGH_VOL(CX18_DBGFLG_FILE, "file", fmt , ## args)
 164 #define CX18_DEBUG_HI_I2C(fmt, args...)   CX18_DEBUG_HIGH_VOL(CX18_DBGFLG_I2C, "i2c", fmt , ## args)
 165 #define CX18_DEBUG_HI_IRQ(fmt, args...)   CX18_DEBUG_HIGH_VOL(CX18_DBGFLG_IRQ, "irq", fmt , ## args)
 166
 167 /* Standard kernel messages */
 168 #define CX18_ERR(fmt, args...)      printk(KERN_ERR  "cx18-%d: " fmt, cx->num , ## args)
 169 #define CX18_WARN(fmt, args...)     printk(KERN_WARNING "cx18-%d: " fmt, cx->num , ## args)
 170 #define CX18_INFO(fmt, args...)     printk(KERN_INFO "cx18-%d: " fmt, cx->num , ## args)
 171
 172 /* Values for CX18_API_DEC_PLAYBACK_SPEED mpeg_frame_type_mask parameter: */
 173 #define MPEG_FRAME_TYPE_IFRAME 1
 174 #define MPEG_FRAME_TYPE_IFRAME_PFRAME 3
 175 #define MPEG_FRAME_TYPE_ALL 7
 176
 177 #define CX18_MAX_PGM_INDEX (400)
 178
 179 extern int cx18_retry_mmio;     /* enable check & retry of mmio accesses */
 180 extern int cx18_debug;
 181
 182
 183 struct cx18_options {
 184         int megabytes[CX18_MAX_STREAMS]; /* Size in megabytes of each stream */
 185         int cardtype;           /* force card type on load */
 186         int tuner;              /* set tuner on load */
 187         int radio;              /* enable/disable radio */
 188         unsigned long mmio_ndelay; /* delay in ns after every PCI mmio access */
 189 };
 190
 191 /* per-buffer bit flags */
 192 #define CX18_F_B_NEED_BUF_SWAP  0       /* this buffer should be byte swapped */
 193
 194 /* per-stream, s_flags */
 195 #define CX18_F_S_CLAIMED        3       /* this stream is claimed */
 196 #define CX18_F_S_STREAMING      4       /* the fw is decoding/encoding this stream */
 197 #define CX18_F_S_INTERNAL_USE   5       /* this stream is used internally (sliced VBI processing) */
 198 #define CX18_F_S_STREAMOFF      7       /* signal end of stream EOS */
 199 #define CX18_F_S_APPL_IO        8       /* this stream is used read/written by an application */
 200
 201 /* per-cx18, i_flags */
 202 #define CX18_F_I_LOADED_FW              0       /* Loaded firmware 1st time */
 203 #define CX18_F_I_EOS                    4       /* End of encoder stream */
 204 #define CX18_F_I_RADIO_USER             5       /* radio tuner is selected */
 205 #define CX18_F_I_ENC_PAUSED             13      /* the encoder is paused */
 206 #define CX18_F_I_HAVE_WORK              15      /* there is work to be done */
 207 #define CX18_F_I_WORK_HANDLER_DVB       18      /* work to be done for DVB */
 208 #define CX18_F_I_INITED                 21      /* set after first open */
 209 #define CX18_F_I_FAILED                 22      /* set if first open failed */
 210 #define CX18_F_I_WORK_INITED            23      /* worker thread initialized */
 211
 212 /* These are the VBI types as they appear in the embedded VBI private packets. */
 213 #define CX18_SLICED_TYPE_TELETEXT_B     (1)
 214 #define CX18_SLICED_TYPE_CAPTION_525    (4)
 215 #define CX18_SLICED_TYPE_WSS_625        (5)
 216 #define CX18_SLICED_TYPE_VPS            (7)
 217
 218 struct cx18_buffer {
 219         struct list_head list;
 220         dma_addr_t dma_handle;
 221         u32 id;
 222         unsigned long b_flags;
 223         char *buf;
 224
 225         u32 bytesused;
 226         u32 readpos;
 227 };
 228
 229 struct cx18_queue {
 230         struct list_head list;
 231         atomic_t buffers;
 232         u32 bytesused;
 233 };
 234
 235 struct cx18_dvb {
 236         struct dmx_frontend hw_frontend;
 237         struct dmx_frontend mem_frontend;
 238         struct dmxdev dmxdev;
 239         struct dvb_adapter dvb_adapter;
 240         struct dvb_demux demux;
 241         struct dvb_frontend *fe;
 242         struct dvb_net dvbnet;
 243         int enabled;
 244         int feeding;
 245         struct mutex feedlock;
 246 };
 247
 248 struct cx18;     /* forward reference */
 249 struct cx18_scb; /* forward reference */
 250
 251 #define CX18_INVALID_TASK_HANDLE 0xffffffff
 252
 253 struct cx18_stream {
 254         /* These first four fields are always set, even if the stream
 255            is not actually created. */
 256         struct video_device *v4l2dev;   /* NULL when stream not created */
 257         struct cx18 *cx;                /* for ease of use */
 258         const char *name;               /* name of the stream */
 259         int type;                       /* stream type */
 260         u32 handle;                     /* task handle */
 261         unsigned mdl_offset;
 262
 263         u32 id;
 264         spinlock_t qlock;       /* locks access to the queues */
 265         unsigned long s_flags;  /* status flags, see above */
 266         int dma;                /* can be PCI_DMA_TODEVICE,
 267                                    PCI_DMA_FROMDEVICE or
 268                                    PCI_DMA_NONE */
 269         u64 dma_pts;
 270         wait_queue_head_t waitq;
 271
 272         /* Buffer Stats */
 273         u32 buffers;
 274         u32 buf_size;
 275
 276         /* Buffer Queues */
 277         struct cx18_queue q_free;       /* free buffers */
 278         struct cx18_queue q_full;       /* full buffers */
 279         struct cx18_queue q_io;         /* waiting for I/O */
 280
 281         /* DVB / Digital Transport */
 282         struct cx18_dvb dvb;
 283 };
 284
 285 struct cx18_open_id {
 286         u32 open_id;
 287         int type;
 288         enum v4l2_priority prio;
 289         struct cx18 *cx;
 290 };
 291
 292 /* forward declaration of struct defined in cx18-cards.h */
 293 struct cx18_card;
 294
 295
 296 #define CX18_VBI_FRAMES 32
 297
 298 /* VBI data */
 299 struct vbi_info {
 300         u32 enc_size;
 301         u32 frame;
 302         u8 cc_data_odd[256];
 303         u8 cc_data_even[256];
 304         int cc_pos;
 305         u8 cc_no_update;
 306         u8 vps[5];
 307         u8 vps_found;
 308         int wss;
 309         u8 wss_found;
 310         u8 wss_no_update;
 311         u32 raw_decoder_line_size;
 312         u8 raw_decoder_sav_odd_field;
 313         u8 raw_decoder_sav_even_field;
 314         u32 sliced_decoder_line_size;
 315         u8 sliced_decoder_sav_odd_field;
 316         u8 sliced_decoder_sav_even_field;
 317         struct v4l2_format in;
 318         /* convenience pointer to sliced struct in vbi_in union */
 319         struct v4l2_sliced_vbi_format *sliced_in;
 320         u32 service_set_in;
 321         int insert_mpeg;
 322
 323         /* Buffer for the maximum of 2 * 18 * packet_size sliced VBI lines.
 324            One for /dev/vbi0 and one for /dev/vbi8 */
 325         struct v4l2_sliced_vbi_data sliced_data[36];
 326
 327         /* Buffer for VBI data inserted into MPEG stream.
 328            The first byte is a dummy byte that's never used.
 329            The next 16 bytes contain the MPEG header for the VBI data,
 330            the remainder is the actual VBI data.
 331            The max size accepted by the MPEG VBI reinsertion turns out
 332            to be 1552 bytes, which happens to be 4 + (1 + 42) * (2 * 18) bytes,
 333            where 4 is a four byte header, 42 is the max sliced VBI payload, 1 is
 334            a single line header byte and 2 * 18 is the number of VBI lines per frame.
 335
 336            However, it seems that the data must be 1K aligned, so we have to
 337            pad the data until the 1 or 2 K boundary.
 338
 339            This pointer array will allocate 2049 bytes to store each VBI frame. */
 340         u8 *sliced_mpeg_data[CX18_VBI_FRAMES];
 341         u32 sliced_mpeg_size[CX18_VBI_FRAMES];
 342         struct cx18_buffer sliced_mpeg_buf;
 343         u32 inserted_frame;
 344
 345         u32 start[2], count;
 346         u32 raw_size;
 347         u32 sliced_size;
 348 };
 349
 350 /* Per cx23418, per I2C bus private algo callback data */
 351 struct cx18_i2c_algo_callback_data {
 352         struct cx18 *cx;
 353         int bus_index;   /* 0 or 1 for the cx23418's 1st or 2nd I2C bus */
 354 };
 355
 356 #define CX18_MAX_MMIO_RETRIES 10
 357
 358 struct cx18_mmio_stats {
 359         atomic_t retried_write[CX18_MAX_MMIO_RETRIES+1];
 360         atomic_t retried_read[CX18_MAX_MMIO_RETRIES+1];
 361 };
 362
 363 /* Struct to hold info about cx18 cards */
 364 struct cx18 {
 365         int num;                /* board number, -1 during init! */
 366         char name[8];           /* board name for printk and interrupts (e.g. 'cx180') */
 367         struct pci_dev *dev;    /* PCI device */
 368         const struct cx18_card *card;   /* card information */
 369         const char *card_name;  /* full name of the card */
 370         const struct cx18_card_tuner_i2c *card_i2c; /* i2c addresses to probe for tuner */
 371         u8 is_50hz;
 372         u8 is_60hz;
 373         u8 is_out_50hz;
 374         u8 is_out_60hz;
 375         u8 nof_inputs;          /* number of video inputs */
 376         u8 nof_audio_inputs;    /* number of audio inputs */
 377         u16 buffer_id;          /* buffer ID counter */
 378         u32 v4l2_cap;           /* V4L2 capabilities of card */
 379         u32 hw_flags;           /* Hardware description of the board */
 380         unsigned mdl_offset;
 381         struct cx18_scb __iomem *scb;   /* pointer to SCB */
 382
 383         struct cx18_av_state av_state;
 384
 385         /* codec settings */
 386         struct cx2341x_mpeg_params params;
 387         u32 filter_mode;
 388         u32 temporal_strength;
 389         u32 spatial_strength;
 390
 391         /* dualwatch */
 392         unsigned long dualwatch_jiffies;
 393         u16 dualwatch_stereo_mode;
 394
 395         /* Digitizer type */
 396         int digitizer;          /* 0x00EF = saa7114 0x00FO = saa7115 0x0106 = mic */
 397
 398         struct mutex serialize_lock;    /* mutex used to serialize open/close/start/stop/ioctl operations */
 399         struct cx18_options options;    /* User options */
 400         int stream_buf_size[CX18_MAX_STREAMS]; /* Stream buffer size */
 401         struct cx18_stream streams[CX18_MAX_STREAMS];   /* Stream data */
 402         unsigned long i_flags;  /* global cx18 flags */
 403         atomic_t ana_capturing; /* count number of active analog capture streams */
 404         atomic_t tot_capturing; /* total count number of active capture streams */
 405         spinlock_t lock;        /* lock access to this struct */
 406         int search_pack_header;
 407
 408         int open_id;            /* incremented each time an open occurs, used as
 409                                    unique ID. Starts at 1, so 0 can be used as
 410                                    uninitialized value in the stream->id. */
 411
 412         u32 base_addr;
 413         struct v4l2_prio_state prio;
 414
 415         u8 card_rev;
 416         void __iomem *enc_mem, *reg_mem;
 417
 418         struct vbi_info vbi;
 419
 420         u32 pgm_info_offset;
 421         u32 pgm_info_num;
 422         u32 pgm_info_write_idx;
 423         u32 pgm_info_read_idx;
 424         struct v4l2_enc_idx_entry pgm_info[CX18_MAX_PGM_INDEX];
 425
 426         u64 mpg_data_received;
 427         u64 vbi_data_inserted;
 428
 429         wait_queue_head_t mb_apu_waitq;
 430         wait_queue_head_t mb_cpu_waitq;
 431         wait_queue_head_t mb_epu_waitq;
 432         wait_queue_head_t mb_hpu_waitq;
 433         wait_queue_head_t cap_w;
 434         /* when the current DMA is finished this queue is woken up */
 435         wait_queue_head_t dma_waitq;
 436
 437         struct workqueue_struct *work_queue;
 438         struct work_struct work;
 439
 440         /* i2c */
 441         struct i2c_adapter i2c_adap[2];
 442         struct i2c_algo_bit_data i2c_algo[2];
 443         struct cx18_i2c_algo_callback_data i2c_algo_cb_data[2];
 444         struct i2c_client i2c_client[2];
 445         struct mutex i2c_bus_lock[2];
 446         struct i2c_client *i2c_clients[I2C_CLIENTS_MAX];
 447
 448         /* gpio */
 449         u32 gpio_dir;
 450         u32 gpio_val;
 451         struct mutex gpio_lock;
 452
 453         /* Statistics */
 454         struct cx18_mmio_stats mmio_stats;
 455
 456         /* v4l2 and User settings */
 457
 458         /* codec settings */
 459         u32 audio_input;
 460         u32 active_input;
 461         u32 active_output;
 462         v4l2_std_id std;
 463         v4l2_std_id tuner_std;  /* The norm of the tuner (fixed) */
 464 };
 465
 466 /* Globals */
 467 extern struct cx18 *cx18_cards[];
 468 extern int cx18_cards_active;
 469 extern int cx18_first_minor;
 470 extern spinlock_t cx18_cards_lock;
 471
 472 /*==============Prototypes==================*/
 473
 474 /* Return non-zero if a signal is pending */
 475 int cx18_msleep_timeout(unsigned int msecs, int intr);
 476
 477 /* Read Hauppauge eeprom */
 478 struct tveeprom; /* forward reference */
 479 void cx18_read_eeprom(struct cx18 *cx, struct tveeprom *tv);
 480
 481 /* First-open initialization: load firmware, etc. */
 482 int cx18_init_on_first_open(struct cx18 *cx);
 483
 484 #endif /* CX18_DRIVER_H */