drivers/media/video/bt8xx/bttvp.h

   1 /*
   2
   3     bttv - Bt848 frame grabber driver
   4
   5     bttv's *private* header file  --  nobody other than bttv itself
   6     should ever include this file.
   7
   8     (c) 2000-2002 Gerd Knorr <kraxel@bytesex.org>
   9
  10     This program is free software; you can redistribute it and/or modify
  11     it under the terms of the GNU General Public License as published by
  12     the Free Software Foundation; either version 2 of the License, or
  13     (at your option) any later version.
  14
  15     This program is distributed in the hope that it will be useful,
  16     but WITHOUT ANY WARRANTY; without even the implied warranty of
  17     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18     GNU General Public License for more details.
  19
  20     You should have received a copy of the GNU General Public License
  21     along with this program; if not, write to the Free Software
  22     Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  23 */
  24
  25 #ifndef _BTTVP_H_
  26 #define _BTTVP_H_
  27
  28 #include <linux/version.h>
  29 #define BTTV_VERSION_CODE KERNEL_VERSION(0,9,18)
  30
  31 #include <linux/types.h>
  32 #include <linux/wait.h>
  33 #include <linux/i2c.h>
  34 #include <linux/i2c-algo-bit.h>
  35 #include <linux/pci.h>
  36 #include <linux/input.h>
  37 #include <linux/mutex.h>
  38 #include <linux/scatterlist.h>
  39 #include <asm/io.h>
  40 #include <media/v4l2-common.h>
  41 #include <linux/device.h>
  42 #include <media/videobuf-dma-sg.h>
  43 #include <media/tveeprom.h>
  44 #include <media/rc-core.h>
  45 #include <media/ir-kbd-i2c.h>
  46
  47 #include "bt848.h"
  48 #include "bttv.h"
  49 #include "btcx-risc.h"
  50
  51 #ifdef __KERNEL__
  52
  53 #define FORMAT_FLAGS_DITHER       0x01
  54 #define FORMAT_FLAGS_PACKED       0x02
  55 #define FORMAT_FLAGS_PLANAR       0x04
  56 #define FORMAT_FLAGS_RAW          0x08
  57 #define FORMAT_FLAGS_CrCb         0x10
  58
  59 #define RISC_SLOT_O_VBI        4
  60 #define RISC_SLOT_O_FIELD      6
  61 #define RISC_SLOT_E_VBI       10
  62 #define RISC_SLOT_E_FIELD     12
  63 #define RISC_SLOT_LOOP        14
  64
  65 #define RESOURCE_OVERLAY       1
  66 #define RESOURCE_VIDEO_STREAM  2
  67 #define RESOURCE_VBI           4
  68 #define RESOURCE_VIDEO_READ    8
  69
  70 #define RAW_LINES            640
  71 #define RAW_BPL             1024
  72
  73 #define UNSET (-1U)
  74
  75 /* Min. value in VDELAY register. */
  76 #define MIN_VDELAY 2
  77 /* Even to get Cb first, odd for Cr. */
  78 #define MAX_HDELAY (0x3FF & -2)
  79 /* Limits scaled width, which must be a multiple of 4. */
  80 #define MAX_HACTIVE (0x3FF & -4)
  81
  82 #define BTTV_NORMS    (\
  83                 V4L2_STD_PAL    | V4L2_STD_PAL_N | \
  84                 V4L2_STD_PAL_Nc | V4L2_STD_SECAM | \
  85                 V4L2_STD_NTSC   | V4L2_STD_PAL_M | \
  86                 V4L2_STD_PAL_60)
  87 /* ---------------------------------------------------------- */
  88
  89 struct bttv_tvnorm {
  90         int   v4l2_id;
  91         char  *name;
  92         u32   Fsc;
  93         u16   swidth, sheight; /* scaled standard width, height */
  94         u16   totalwidth;
  95         u8    adelay, bdelay, iform;
  96         u32   scaledtwidth;
  97         u16   hdelayx1, hactivex1;
  98         u16   vdelay;
  99         u8    vbipack;
 100         u16   vtotal;
 101         int   sram;
 102         /* ITU-R frame line number of the first VBI line we can
 103            capture, of the first and second field. The last possible line
 104            is determined by cropcap.bounds. */
 105         u16   vbistart[2];
 106         /* Horizontally this counts fCLKx1 samples following the leading
 107            edge of the horizontal sync pulse, vertically ITU-R frame line
 108            numbers of the first field times two (2, 4, 6, ... 524 or 624). */
 109         struct v4l2_cropcap cropcap;
 110 };
 111 extern const struct bttv_tvnorm bttv_tvnorms[];
 112
 113 struct bttv_format {
 114         char *name;
 115         int  fourcc;          /* video4linux 2      */
 116         int  btformat;        /* BT848_COLOR_FMT_*  */
 117         int  btswap;          /* BT848_COLOR_CTL_*  */
 118         int  depth;           /* bit/pixel          */
 119         int  flags;
 120         int  hshift,vshift;   /* for planar modes   */
 121 };
 122
 123 struct bttv_ir {
 124         struct rc_dev           *dev;
 125         struct timer_list       timer;
 126
 127         char                    name[32];
 128         char                    phys[32];
 129
 130         /* Usual gpio signalling */
 131         u32                     mask_keycode;
 132         u32                     mask_keydown;
 133         u32                     mask_keyup;
 134         u32                     polling;
 135         u32                     last_gpio;
 136         int                     shift_by;
 137         int                     start; // What should RC5_START() be
 138         int                     addr; // What RC5_ADDR() should be.
 139         int                     rc5_remote_gap;
 140
 141         /* RC5 gpio */
 142         bool                    rc5_gpio;   /* Is RC5 legacy GPIO enabled? */
 143         u32                     last_bit;   /* last raw bit seen */
 144         u32                     code;       /* raw code under construction */
 145         struct timeval          base_time;  /* time of last seen code */
 146         bool                    active;     /* building raw code */
 147 };
 148
 149
 150 /* ---------------------------------------------------------- */
 151
 152 struct bttv_geometry {
 153         u8  vtc,crop,comb;
 154         u16 width,hscale,hdelay;
 155         u16 sheight,vscale,vdelay,vtotal;
 156 };
 157
 158 struct bttv_buffer {
 159         /* common v4l buffer stuff -- must be first */
 160         struct videobuf_buffer     vb;
 161
 162         /* bttv specific */
 163         const struct bttv_format   *fmt;
 164         unsigned int               tvnorm;
 165         int                        btformat;
 166         int                        btswap;
 167         struct bttv_geometry       geo;
 168         struct btcx_riscmem        top;
 169         struct btcx_riscmem        bottom;
 170         struct v4l2_rect           crop;
 171         unsigned int               vbi_skip[2];
 172         unsigned int               vbi_count[2];
 173 };
 174
 175 struct bttv_buffer_set {
 176         struct bttv_buffer     *top;       /* top field buffer    */
 177         struct bttv_buffer     *bottom;    /* bottom field buffer */
 178         unsigned int           top_irq;
 179         unsigned int           frame_irq;
 180 };
 181
 182 struct bttv_overlay {
 183         unsigned int           tvnorm;
 184         struct v4l2_rect       w;
 185         enum v4l2_field        field;
 186         struct v4l2_clip       *clips;
 187         int                    nclips;
 188         int                    setup_ok;
 189 };
 190
 191 struct bttv_vbi_fmt {
 192         struct v4l2_vbi_format fmt;
 193
 194         /* fmt.start[] and count[] refer to this video standard. */
 195         const struct bttv_tvnorm *tvnorm;
 196
 197         /* Earliest possible start of video capturing with this
 198            v4l2_vbi_format, in struct bttv_crop.rect units. */
 199         __s32                  end;
 200 };
 201
 202 /* bttv-vbi.c */
 203 void bttv_vbi_fmt_reset(struct bttv_vbi_fmt *f, unsigned int norm);
 204
 205 struct bttv_crop {
 206         /* A cropping rectangle in struct bttv_tvnorm.cropcap units. */
 207         struct v4l2_rect       rect;
 208
 209         /* Scaled image size limits with this crop rect. Divide
 210            max_height, but not min_height, by two when capturing
 211            single fields. See also bttv_crop_reset() and
 212            bttv_crop_adjust() in bttv-driver.c. */
 213         __s32                  min_scaled_width;
 214         __s32                  min_scaled_height;
 215         __s32                  max_scaled_width;
 216         __s32                  max_scaled_height;
 217 };
 218
 219 struct bttv_fh {
 220         struct bttv              *btv;
 221         int resources;
 222 #ifdef VIDIOC_G_PRIORITY
 223         enum v4l2_priority       prio;
 224 #endif
 225         enum v4l2_buf_type       type;
 226
 227         /* video capture */
 228         struct videobuf_queue    cap;
 229         const struct bttv_format *fmt;
 230         int                      width;
 231         int                      height;
 232
 233         /* video overlay */
 234         const struct bttv_format *ovfmt;
 235         struct bttv_overlay      ov;
 236
 237         /* Application called VIDIOC_S_CROP. */
 238         int                      do_crop;
 239
 240         /* vbi capture */
 241         struct videobuf_queue    vbi;
 242         /* Current VBI capture window as seen through this fh (cannot
 243            be global for compatibility with earlier drivers). Protected
 244            by struct bttv.lock and struct bttv_fh.vbi.lock. */
 245         struct bttv_vbi_fmt      vbi_fmt;
 246 };
 247
 248 /* ---------------------------------------------------------- */
 249 /* bttv-risc.c                                                */
 250
 251 /* risc code generators - capture */
 252 int bttv_risc_packed(struct bttv *btv, struct btcx_riscmem *risc,
 253                      struct scatterlist *sglist,
 254                      unsigned int offset, unsigned int bpl,
 255                      unsigned int pitch, unsigned int skip_lines,
 256                      unsigned int store_lines);
 257
 258 /* control dma register + risc main loop */
 259 void bttv_set_dma(struct bttv *btv, int override);
 260 int bttv_risc_init_main(struct bttv *btv);
 261 int bttv_risc_hook(struct bttv *btv, int slot, struct btcx_riscmem *risc,
 262                    int irqflags);
 263
 264 /* capture buffer handling */
 265 int bttv_buffer_risc(struct bttv *btv, struct bttv_buffer *buf);
 266 int bttv_buffer_activate_video(struct bttv *btv,
 267                                struct bttv_buffer_set *set);
 268 int bttv_buffer_activate_vbi(struct bttv *btv,
 269                              struct bttv_buffer *vbi);
 270 void bttv_dma_free(struct videobuf_queue *q, struct bttv *btv,
 271                    struct bttv_buffer *buf);
 272
 273 /* overlay handling */
 274 int bttv_overlay_risc(struct bttv *btv, struct bttv_overlay *ov,
 275                       const struct bttv_format *fmt,
 276                       struct bttv_buffer *buf);
 277
 278
 279 /* ---------------------------------------------------------- */
 280 /* bttv-vbi.c                                                 */
 281
 282 int bttv_try_fmt_vbi_cap(struct file *file, void *fh, struct v4l2_format *f);
 283 int bttv_g_fmt_vbi_cap(struct file *file, void *fh, struct v4l2_format *f);
 284 int bttv_s_fmt_vbi_cap(struct file *file, void *fh, struct v4l2_format *f);
 285
 286 extern struct videobuf_queue_ops bttv_vbi_qops;
 287
 288 /* ---------------------------------------------------------- */
 289 /* bttv-gpio.c */
 290
 291 extern struct bus_type bttv_sub_bus_type;
 292 int bttv_sub_add_device(struct bttv_core *core, char *name);
 293 int bttv_sub_del_devices(struct bttv_core *core);
 294
 295 /* ---------------------------------------------------------- */
 296 /* bttv-cards.c                                               */
 297
 298 extern int no_overlay;
 299
 300 /* ---------------------------------------------------------- */
 301 /* bttv-input.c                                               */
 302
 303 extern void init_bttv_i2c_ir(struct bttv *btv);
 304 extern int fini_bttv_i2c(struct bttv *btv);
 305
 306 /* ---------------------------------------------------------- */
 307 /* bttv-driver.c                                              */
 308
 309 /* insmod options */
 310 extern unsigned int bttv_verbose;
 311 extern unsigned int bttv_debug;
 312 extern unsigned int bttv_gpio;
 313 extern void bttv_gpio_tracking(struct bttv *btv, char *comment);
 314 extern int init_bttv_i2c(struct bttv *btv);
 315
 316 #define bttv_printk if (bttv_verbose) printk
 317 #define dprintk  if (bttv_debug >= 1) printk
 318 #define d2printk if (bttv_debug >= 2) printk
 319
 320 #define BTTV_MAX_FBUF   0x208000
 321 #define BTTV_TIMEOUT    msecs_to_jiffies(500)    /* 0.5 seconds */
 322 #define BTTV_FREE_IDLE  msecs_to_jiffies(1000)   /* one second */
 323
 324
 325 struct bttv_pll_info {
 326         unsigned int pll_ifreq;    /* PLL input frequency        */
 327         unsigned int pll_ofreq;    /* PLL output frequency       */
 328         unsigned int pll_crystal;  /* Crystal used for input     */
 329         unsigned int pll_current;  /* Currently programmed ofreq */
 330 };
 331
 332 /* for gpio-connected remote control */
 333 struct bttv_input {
 334         struct input_dev      *dev;
 335         char                  name[32];
 336         char                  phys[32];
 337         u32                   mask_keycode;
 338         u32                   mask_keydown;
 339 };
 340
 341 struct bttv_suspend_state {
 342         u32  gpio_enable;
 343         u32  gpio_data;
 344         int  disabled;
 345         int  loop_irq;
 346         struct bttv_buffer_set video;
 347         struct bttv_buffer     *vbi;
 348 };
 349
 350 struct bttv {
 351         struct bttv_core c;
 352
 353         /* pci device config */
 354         unsigned short id;
 355         unsigned char revision;
 356         unsigned char __iomem *bt848_mmio;   /* pointer to mmio */
 357
 358         /* card configuration info */
 359         unsigned int cardid;   /* pci subsystem id (bt878 based ones) */
 360         unsigned int tuner_type;  /* tuner chip type */
 361         unsigned int tda9887_conf;
 362         unsigned int svhs, dig;
 363         unsigned int has_saa6588:1;
 364         struct bttv_pll_info pll;
 365         int triton1;
 366         int gpioirq;
 367
 368         int use_i2c_hw;
 369
 370         /* old gpio interface */
 371         int shutdown;
 372
 373         void (*volume_gpio)(struct bttv *btv, __u16 volume);
 374         void (*audio_mode_gpio)(struct bttv *btv, struct v4l2_tuner *tuner, int set);
 375
 376         /* new gpio interface */
 377         spinlock_t gpio_lock;
 378
 379         /* i2c layer */
 380         struct i2c_algo_bit_data   i2c_algo;
 381         struct i2c_client          i2c_client;
 382         int                        i2c_state, i2c_rc;
 383         int                        i2c_done;
 384         wait_queue_head_t          i2c_queue;
 385         struct v4l2_subdev        *sd_msp34xx;
 386         struct v4l2_subdev        *sd_tvaudio;
 387
 388         /* video4linux (1) */
 389         struct video_device *video_dev;
 390         struct video_device *radio_dev;
 391         struct video_device *vbi_dev;
 392
 393         /* infrared remote */
 394         int has_remote;
 395         struct bttv_ir *remote;
 396
 397         /* I2C remote data */
 398         struct IR_i2c_init_data    init_data;
 399
 400         /* locking */
 401         spinlock_t s_lock;
 402         struct mutex lock;
 403         int resources;
 404 #ifdef VIDIOC_G_PRIORITY
 405         struct v4l2_prio_state prio;
 406 #endif
 407
 408         /* video state */
 409         unsigned int input;
 410         unsigned int audio;
 411         unsigned int mute;
 412         unsigned long freq;
 413         unsigned int tvnorm;
 414         int hue, contrast, bright, saturation;
 415         struct v4l2_framebuffer fbuf;
 416         unsigned int field_count;
 417
 418         /* various options */
 419         int opt_combfilter;
 420         int opt_lumafilter;
 421         int opt_automute;
 422         int opt_chroma_agc;
 423         int opt_adc_crush;
 424         int opt_vcr_hack;
 425         int opt_whitecrush_upper;
 426         int opt_whitecrush_lower;
 427         int opt_uv_ratio;
 428         int opt_full_luma_range;
 429         int opt_coring;
 430
 431         /* radio data/state */
 432         int has_radio;
 433         int radio_user;
 434
 435         /* miro/pinnacle + Aimslab VHX
 436            philips matchbox (tea5757 radio tuner) support */
 437         int has_matchbox;
 438         int mbox_we;
 439         int mbox_data;
 440         int mbox_clk;
 441         int mbox_most;
 442         int mbox_mask;
 443
 444         /* ISA stuff (Terratec Active Radio Upgrade) */
 445         int mbox_ior;
 446         int mbox_iow;
 447         int mbox_csel;
 448
 449         /* risc memory management data
 450            - must acquire s_lock before changing these
 451            - only the irq handler is supported to touch top + bottom + vcurr */
 452         struct btcx_riscmem     main;
 453         struct bttv_buffer      *screen;    /* overlay             */
 454         struct list_head        capture;    /* video capture queue */
 455         struct list_head        vcapture;   /* vbi capture queue   */
 456         struct bttv_buffer_set  curr;       /* active buffers      */
 457         struct bttv_buffer      *cvbi;      /* active vbi buffer   */
 458         int                     loop_irq;
 459         int                     new_input;
 460
 461         unsigned long cap_ctl;
 462         unsigned long dma_on;
 463         struct timer_list timeout;
 464         struct bttv_suspend_state state;
 465
 466         /* stats */
 467         unsigned int errors;
 468         unsigned int framedrop;
 469         unsigned int irq_total;
 470         unsigned int irq_me;
 471
 472         unsigned int users;
 473         struct bttv_fh init;
 474
 475         /* used to make dvb-bt8xx autoloadable */
 476         struct work_struct request_module_wk;
 477
 478         /* Default (0) and current (1) video capturing and overlay
 479            cropping parameters in bttv_tvnorm.cropcap units. Protected
 480            by bttv.lock. */
 481         struct bttv_crop crop[2];
 482
 483         /* Earliest possible start of video capturing in
 484            bttv_tvnorm.cropcap line units. Set by check_alloc_btres()
 485            and free_btres(). Protected by bttv.lock. */
 486         __s32                   vbi_end;
 487
 488         /* Latest possible end of VBI capturing (= crop[x].rect.top when
 489            VIDEO_RESOURCES are locked). Set by check_alloc_btres()
 490            and free_btres(). Protected by bttv.lock. */
 491         __s32                   crop_start;
 492 };
 493
 494 static inline struct bttv *to_bttv(struct v4l2_device *v4l2_dev)
 495 {
 496         return container_of(v4l2_dev, struct bttv, c.v4l2_dev);
 497 }
 498
 499 /* our devices */
 500 #define BTTV_MAX 32
 501 extern unsigned int bttv_num;
 502 extern struct bttv *bttvs[BTTV_MAX];
 503
 504 static inline unsigned int bttv_muxsel(const struct bttv *btv,
 505                                        unsigned int input)
 506 {
 507         return (bttv_tvcards[btv->c.type].muxsel >> (input * 2)) & 3;
 508 }
 509
 510 #endif
 511
 512 #define btwrite(dat,adr)    writel((dat), btv->bt848_mmio+(adr))
 513 #define btread(adr)         readl(btv->bt848_mmio+(adr))
 514
 515 #define btand(dat,adr)      btwrite((dat) & btread(adr), adr)
 516 #define btor(dat,adr)       btwrite((dat) | btread(adr), adr)
 517 #define btaor(dat,mask,adr) btwrite((dat) | ((mask) & btread(adr)), adr)
 518
 519 #endif /* _BTTVP_H_ */
 520
 521 /*
 522  * Local variables:
 523  * c-basic-offset: 8
 524  * End:
 525  */