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/types.h>
  29 #include <linux/wait.h>
  30 #include <linux/i2c.h>
  31 #include <linux/i2c-algo-bit.h>
  32 #include <linux/pci.h>
  33 #include <linux/input.h>
  34 #include <linux/mutex.h>
  35 #include <linux/scatterlist.h>
  36 #include <asm/io.h>
  37 #include <media/v4l2-common.h>
  38 #include <linux/device.h>
  39 #include <media/videobuf-dma-sg.h>
  40 #include <media/tveeprom.h>
  41 #include <media/rc-core.h>
  42 #include <media/ir-kbd-i2c.h>
  43
  44 #include "bt848.h"
  45 #include "bttv.h"
  46 #include "btcx-risc.h"
  47
  48 #ifdef __KERNEL__
  49
  50 #define FORMAT_FLAGS_DITHER       0x01
  51 #define FORMAT_FLAGS_PACKED       0x02
  52 #define FORMAT_FLAGS_PLANAR       0x04
  53 #define FORMAT_FLAGS_RAW          0x08
  54 #define FORMAT_FLAGS_CrCb         0x10
  55
  56 #define RISC_SLOT_O_VBI        4
  57 #define RISC_SLOT_O_FIELD      6
  58 #define RISC_SLOT_E_VBI       10
  59 #define RISC_SLOT_E_FIELD     12
  60 #define RISC_SLOT_LOOP        14
  61
  62 #define RESOURCE_OVERLAY       1
  63 #define RESOURCE_VIDEO_STREAM  2
  64 #define RESOURCE_VBI           4
  65 #define RESOURCE_VIDEO_READ    8
  66
  67 #define RAW_LINES            640
  68 #define RAW_BPL             1024
  69
  70 #define UNSET (-1U)
  71
  72 /* Min. value in VDELAY register. */
  73 #define MIN_VDELAY 2
  74 /* Even to get Cb first, odd for Cr. */
  75 #define MAX_HDELAY (0x3FF & -2)
  76 /* Limits scaled width, which must be a multiple of 4. */
  77 #define MAX_HACTIVE (0x3FF & -4)
  78
  79 #define BTTV_NORMS    (\
  80                 V4L2_STD_PAL    | V4L2_STD_PAL_N | \
  81                 V4L2_STD_PAL_Nc | V4L2_STD_SECAM | \
  82                 V4L2_STD_NTSC   | V4L2_STD_PAL_M | \
  83                 V4L2_STD_PAL_60)
  84 /* ---------------------------------------------------------- */
  85
  86 struct bttv_tvnorm {
  87         int   v4l2_id;
  88         char  *name;
  89         u32   Fsc;
  90         u16   swidth, sheight; /* scaled standard width, height */
  91         u16   totalwidth;
  92         u8    adelay, bdelay, iform;
  93         u32   scaledtwidth;
  94         u16   hdelayx1, hactivex1;
  95         u16   vdelay;
  96         u8    vbipack;
  97         u16   vtotal;
  98         int   sram;
  99         /* ITU-R frame line number of the first VBI line we can
 100            capture, of the first and second field. The last possible line
 101            is determined by cropcap.bounds. */
 102         u16   vbistart[2];
 103         /* Horizontally this counts fCLKx1 samples following the leading
 104            edge of the horizontal sync pulse, vertically ITU-R frame line
 105            numbers of the first field times two (2, 4, 6, ... 524 or 624). */
 106         struct v4l2_cropcap cropcap;
 107 };
 108 extern const struct bttv_tvnorm bttv_tvnorms[];
 109
 110 struct bttv_format {
 111         char *name;
 112         int  fourcc;          /* video4linux 2      */
 113         int  btformat;        /* BT848_COLOR_FMT_*  */
 114         int  btswap;          /* BT848_COLOR_CTL_*  */
 115         int  depth;           /* bit/pixel          */
 116         int  flags;
 117         int  hshift,vshift;   /* for planar modes   */
 118 };
 119
 120 struct bttv_ir {
 121         struct rc_dev           *dev;
 122         struct timer_list       timer;
 123
 124         char                    name[32];
 125         char                    phys[32];
 126
 127         /* Usual gpio signalling */
 128         u32                     mask_keycode;
 129         u32                     mask_keydown;
 130         u32                     mask_keyup;
 131         u32                     polling;
 132         u32                     last_gpio;
 133         int                     shift_by;
 134         int                     start; // What should RC5_START() be
 135         int                     addr; // What RC5_ADDR() should be.
 136         int                     rc5_remote_gap;
 137
 138         /* RC5 gpio */
 139         bool                    rc5_gpio;   /* Is RC5 legacy GPIO enabled? */
 140         u32                     last_bit;   /* last raw bit seen */
 141         u32                     code;       /* raw code under construction */
 142         struct timeval          base_time;  /* time of last seen code */
 143         bool                    active;     /* building raw code */
 144 };
 145
 146
 147 /* ---------------------------------------------------------- */
 148
 149 struct bttv_geometry {
 150         u8  vtc,crop,comb;
 151         u16 width,hscale,hdelay;
 152         u16 sheight,vscale,vdelay,vtotal;
 153 };
 154
 155 struct bttv_buffer {
 156         /* common v4l buffer stuff -- must be first */
 157         struct videobuf_buffer     vb;
 158
 159         /* bttv specific */
 160         const struct bttv_format   *fmt;
 161         unsigned int               tvnorm;
 162         int                        btformat;
 163         int                        btswap;
 164         struct bttv_geometry       geo;
 165         struct btcx_riscmem        top;
 166         struct btcx_riscmem        bottom;
 167         struct v4l2_rect           crop;
 168         unsigned int               vbi_skip[2];
 169         unsigned int               vbi_count[2];
 170 };
 171
 172 struct bttv_buffer_set {
 173         struct bttv_buffer     *top;       /* top field buffer    */
 174         struct bttv_buffer     *bottom;    /* bottom field buffer */
 175         unsigned int           top_irq;
 176         unsigned int           frame_irq;
 177 };
 178
 179 struct bttv_overlay {
 180         unsigned int           tvnorm;
 181         struct v4l2_rect       w;
 182         enum v4l2_field        field;
 183         struct v4l2_clip       *clips;
 184         int                    nclips;
 185         int                    setup_ok;
 186 };
 187
 188 struct bttv_vbi_fmt {
 189         struct v4l2_vbi_format fmt;
 190
 191         /* fmt.start[] and count[] refer to this video standard. */
 192         const struct bttv_tvnorm *tvnorm;
 193
 194         /* Earliest possible start of video capturing with this
 195            v4l2_vbi_format, in struct bttv_crop.rect units. */
 196         __s32                  end;
 197 };
 198
 199 /* bttv-vbi.c */
 200 void bttv_vbi_fmt_reset(struct bttv_vbi_fmt *f, unsigned int norm);
 201
 202 struct bttv_crop {
 203         /* A cropping rectangle in struct bttv_tvnorm.cropcap units. */
 204         struct v4l2_rect       rect;
 205
 206         /* Scaled image size limits with this crop rect. Divide
 207            max_height, but not min_height, by two when capturing
 208            single fields. See also bttv_crop_reset() and
 209            bttv_crop_adjust() in bttv-driver.c. */
 210         __s32                  min_scaled_width;
 211         __s32                  min_scaled_height;
 212         __s32                  max_scaled_width;
 213         __s32                  max_scaled_height;
 214 };
 215
 216 struct bttv_fh {
 217         struct bttv              *btv;
 218         int resources;
 219 #ifdef VIDIOC_G_PRIORITY
 220         enum v4l2_priority       prio;
 221 #endif
 222         enum v4l2_buf_type       type;
 223
 224         /* video capture */
 225         struct videobuf_queue    cap;
 226         const struct bttv_format *fmt;
 227         int                      width;
 228         int                      height;
 229
 230         /* video overlay */
 231         const struct bttv_format *ovfmt;
 232         struct bttv_overlay      ov;
 233
 234         /* Application called VIDIOC_S_CROP. */
 235         int                      do_crop;
 236
 237         /* vbi capture */
 238         struct videobuf_queue    vbi;
 239         /* Current VBI capture window as seen through this fh (cannot
 240            be global for compatibility with earlier drivers). Protected
 241            by struct bttv.lock and struct bttv_fh.vbi.lock. */
 242         struct bttv_vbi_fmt      vbi_fmt;
 243 };
 244
 245 /* ---------------------------------------------------------- */
 246 /* bttv-risc.c                                                */
 247
 248 /* risc code generators - capture */
 249 int bttv_risc_packed(struct bttv *btv, struct btcx_riscmem *risc,
 250                      struct scatterlist *sglist,
 251                      unsigned int offset, unsigned int bpl,
 252                      unsigned int pitch, unsigned int skip_lines,
 253                      unsigned int store_lines);
 254
 255 /* control dma register + risc main loop */
 256 void bttv_set_dma(struct bttv *btv, int override);
 257 int bttv_risc_init_main(struct bttv *btv);
 258 int bttv_risc_hook(struct bttv *btv, int slot, struct btcx_riscmem *risc,
 259                    int irqflags);
 260
 261 /* capture buffer handling */
 262 int bttv_buffer_risc(struct bttv *btv, struct bttv_buffer *buf);
 263 int bttv_buffer_activate_video(struct bttv *btv,
 264                                struct bttv_buffer_set *set);
 265 int bttv_buffer_activate_vbi(struct bttv *btv,
 266                              struct bttv_buffer *vbi);
 267 void bttv_dma_free(struct videobuf_queue *q, struct bttv *btv,
 268                    struct bttv_buffer *buf);
 269
 270 /* overlay handling */
 271 int bttv_overlay_risc(struct bttv *btv, struct bttv_overlay *ov,
 272                       const struct bttv_format *fmt,
 273                       struct bttv_buffer *buf);
 274
 275
 276 /* ---------------------------------------------------------- */
 277 /* bttv-vbi.c                                                 */
 278
 279 int bttv_try_fmt_vbi_cap(struct file *file, void *fh, struct v4l2_format *f);
 280 int bttv_g_fmt_vbi_cap(struct file *file, void *fh, struct v4l2_format *f);
 281 int bttv_s_fmt_vbi_cap(struct file *file, void *fh, struct v4l2_format *f);
 282
 283 extern struct videobuf_queue_ops bttv_vbi_qops;
 284
 285 /* ---------------------------------------------------------- */
 286 /* bttv-gpio.c */
 287
 288 extern struct bus_type bttv_sub_bus_type;
 289 int bttv_sub_add_device(struct bttv_core *core, char *name);
 290 int bttv_sub_del_devices(struct bttv_core *core);
 291
 292 /* ---------------------------------------------------------- */
 293 /* bttv-cards.c                                               */
 294
 295 extern int no_overlay;
 296
 297 /* ---------------------------------------------------------- */
 298 /* bttv-input.c                                               */
 299
 300 extern void init_bttv_i2c_ir(struct bttv *btv);
 301 extern int fini_bttv_i2c(struct bttv *btv);
 302
 303 /* ---------------------------------------------------------- */
 304 /* bttv-driver.c                                              */
 305
 306 /* insmod options */
 307 extern unsigned int bttv_verbose;
 308 extern unsigned int bttv_debug;
 309 extern unsigned int bttv_gpio;
 310 extern void bttv_gpio_tracking(struct bttv *btv, char *comment);
 311 extern int init_bttv_i2c(struct bttv *btv);
 312
 313 #define dprintk(fmt, ...)                       \
 314 do {                                            \
 315         if (bttv_debug >= 1)                    \
 316                 pr_debug(fmt, ##__VA_ARGS__);   \
 317 } while (0)
 318 #define dprintk_cont(fmt, ...)                  \
 319 do {                                            \
 320         if (bttv_debug >= 1)                    \
 321                 pr_cont(fmt, ##__VA_ARGS__);    \
 322 } while (0)
 323 #define d2printk(fmt, ...)                      \
 324 do {                                            \
 325         if (bttv_debug >= 2)                    \
 326                 printk(fmt, ##__VA_ARGS__);     \
 327 } while (0)
 328
 329 #define BTTV_MAX_FBUF   0x208000
 330 #define BTTV_TIMEOUT    msecs_to_jiffies(500)    /* 0.5 seconds */
 331 #define BTTV_FREE_IDLE  msecs_to_jiffies(1000)   /* one second */
 332
 333
 334 struct bttv_pll_info {
 335         unsigned int pll_ifreq;    /* PLL input frequency        */
 336         unsigned int pll_ofreq;    /* PLL output frequency       */
 337         unsigned int pll_crystal;  /* Crystal used for input     */
 338         unsigned int pll_current;  /* Currently programmed ofreq */
 339 };
 340
 341 /* for gpio-connected remote control */
 342 struct bttv_input {
 343         struct input_dev      *dev;
 344         char                  name[32];
 345         char                  phys[32];
 346         u32                   mask_keycode;
 347         u32                   mask_keydown;
 348 };
 349
 350 struct bttv_suspend_state {
 351         u32  gpio_enable;
 352         u32  gpio_data;
 353         int  disabled;
 354         int  loop_irq;
 355         struct bttv_buffer_set video;
 356         struct bttv_buffer     *vbi;
 357 };
 358
 359 struct bttv {
 360         struct bttv_core c;
 361
 362         /* pci device config */
 363         unsigned short id;
 364         unsigned char revision;
 365         unsigned char __iomem *bt848_mmio;   /* pointer to mmio */
 366
 367         /* card configuration info */
 368         unsigned int cardid;   /* pci subsystem id (bt878 based ones) */
 369         unsigned int tuner_type;  /* tuner chip type */
 370         unsigned int tda9887_conf;
 371         unsigned int svhs, dig;
 372         unsigned int has_saa6588:1;
 373         struct bttv_pll_info pll;
 374         int triton1;
 375         int gpioirq;
 376
 377         int use_i2c_hw;
 378
 379         /* old gpio interface */
 380         int shutdown;
 381
 382         void (*volume_gpio)(struct bttv *btv, __u16 volume);
 383         void (*audio_mode_gpio)(struct bttv *btv, struct v4l2_tuner *tuner, int set);
 384
 385         /* new gpio interface */
 386         spinlock_t gpio_lock;
 387
 388         /* i2c layer */
 389         struct i2c_algo_bit_data   i2c_algo;
 390         struct i2c_client          i2c_client;
 391         int                        i2c_state, i2c_rc;
 392         int                        i2c_done;
 393         wait_queue_head_t          i2c_queue;
 394         struct v4l2_subdev        *sd_msp34xx;
 395         struct v4l2_subdev        *sd_tvaudio;
 396
 397         /* video4linux (1) */
 398         struct video_device *video_dev;
 399         struct video_device *radio_dev;
 400         struct video_device *vbi_dev;
 401
 402         /* infrared remote */
 403         int has_remote;
 404         struct bttv_ir *remote;
 405
 406         /* I2C remote data */
 407         struct IR_i2c_init_data    init_data;
 408
 409         /* locking */
 410         spinlock_t s_lock;
 411         struct mutex lock;
 412         int resources;
 413 #ifdef VIDIOC_G_PRIORITY
 414         struct v4l2_prio_state prio;
 415 #endif
 416
 417         /* video state */
 418         unsigned int input;
 419         unsigned int audio;
 420         unsigned int mute;
 421         unsigned long freq;
 422         unsigned int tvnorm;
 423         int hue, contrast, bright, saturation;
 424         struct v4l2_framebuffer fbuf;
 425         unsigned int field_count;
 426
 427         /* various options */
 428         int opt_combfilter;
 429         int opt_lumafilter;
 430         int opt_automute;
 431         int opt_chroma_agc;
 432         int opt_adc_crush;
 433         int opt_vcr_hack;
 434         int opt_whitecrush_upper;
 435         int opt_whitecrush_lower;
 436         int opt_uv_ratio;
 437         int opt_full_luma_range;
 438         int opt_coring;
 439
 440         /* radio data/state */
 441         int has_radio;
 442         int radio_user;
 443
 444         /* miro/pinnacle + Aimslab VHX
 445            philips matchbox (tea5757 radio tuner) support */
 446         int has_matchbox;
 447         int mbox_we;
 448         int mbox_data;
 449         int mbox_clk;
 450         int mbox_most;
 451         int mbox_mask;
 452
 453         /* ISA stuff (Terratec Active Radio Upgrade) */
 454         int mbox_ior;
 455         int mbox_iow;
 456         int mbox_csel;
 457
 458         /* risc memory management data
 459            - must acquire s_lock before changing these
 460            - only the irq handler is supported to touch top + bottom + vcurr */
 461         struct btcx_riscmem     main;
 462         struct bttv_buffer      *screen;    /* overlay             */
 463         struct list_head        capture;    /* video capture queue */
 464         struct list_head        vcapture;   /* vbi capture queue   */
 465         struct bttv_buffer_set  curr;       /* active buffers      */
 466         struct bttv_buffer      *cvbi;      /* active vbi buffer   */
 467         int                     loop_irq;
 468         int                     new_input;
 469
 470         unsigned long cap_ctl;
 471         unsigned long dma_on;
 472         struct timer_list timeout;
 473         struct bttv_suspend_state state;
 474
 475         /* stats */
 476         unsigned int errors;
 477         unsigned int framedrop;
 478         unsigned int irq_total;
 479         unsigned int irq_me;
 480
 481         unsigned int users;
 482         struct bttv_fh init;
 483
 484         /* used to make dvb-bt8xx autoloadable */
 485         struct work_struct request_module_wk;
 486
 487         /* Default (0) and current (1) video capturing and overlay
 488            cropping parameters in bttv_tvnorm.cropcap units. Protected
 489            by bttv.lock. */
 490         struct bttv_crop crop[2];
 491
 492         /* Earliest possible start of video capturing in
 493            bttv_tvnorm.cropcap line units. Set by check_alloc_btres()
 494            and free_btres(). Protected by bttv.lock. */
 495         __s32                   vbi_end;
 496
 497         /* Latest possible end of VBI capturing (= crop[x].rect.top when
 498            VIDEO_RESOURCES are locked). Set by check_alloc_btres()
 499            and free_btres(). Protected by bttv.lock. */
 500         __s32                   crop_start;
 501 };
 502
 503 static inline struct bttv *to_bttv(struct v4l2_device *v4l2_dev)
 504 {
 505         return container_of(v4l2_dev, struct bttv, c.v4l2_dev);
 506 }
 507
 508 /* our devices */
 509 #define BTTV_MAX 32
 510 extern unsigned int bttv_num;
 511 extern struct bttv *bttvs[BTTV_MAX];
 512
 513 static inline unsigned int bttv_muxsel(const struct bttv *btv,
 514                                        unsigned int input)
 515 {
 516         return (bttv_tvcards[btv->c.type].muxsel >> (input * 2)) & 3;
 517 }
 518
 519 #endif
 520
 521 #define btwrite(dat,adr)    writel((dat), btv->bt848_mmio+(adr))
 522 #define btread(adr)         readl(btv->bt848_mmio+(adr))
 523
 524 #define btand(dat,adr)      btwrite((dat) & btread(adr), adr)
 525 #define btor(dat,adr)       btwrite((dat) | btread(adr), adr)
 526 #define btaor(dat,mask,adr) btwrite((dat) | ((mask) & btread(adr)), adr)
 527
 528 #endif /* _BTTVP_H_ */
 529
 530 /*
 531  * Local variables:
 532  * c-basic-offset: 8
 533  * End:
 534  */