drivers/media/pci/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 <linux/device.h>
  37 #include <asm/io.h>
  38 #include <media/v4l2-common.h>
  39 #include <media/v4l2-ctrls.h>
  40 #include <media/v4l2-fh.h>
  41 #include <media/videobuf-dma-sg.h>
  42 #include <media/tveeprom.h>
  43 #include <media/rc-core.h>
  44 #include <media/i2c/ir-kbd-i2c.h>
  45 #include <media/drv-intf/tea575x.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 bttv             *btv;
 126         struct timer_list       timer;
 127
 128         char                    name[32];
 129         char                    phys[32];
 130
 131         /* Usual gpio signalling */
 132         u32                     mask_keycode;
 133         u32                     mask_keydown;
 134         u32                     mask_keyup;
 135         u32                     polling;
 136         u32                     last_gpio;
 137         int                     shift_by;
 138         int                     rc5_remote_gap;
 139
 140         /* RC5 gpio */
 141         bool                    rc5_gpio;   /* Is RC5 legacy GPIO enabled? */
 142         u32                     last_bit;   /* last raw bit seen */
 143         u32                     code;       /* raw code under construction */
 144         ktime_t                                         base_time;  /* time of last seen code */
 145         bool                    active;     /* building raw code */
 146 };
 147
 148
 149 /* ---------------------------------------------------------- */
 150
 151 struct bttv_geometry {
 152         u8  vtc,crop,comb;
 153         u16 width,hscale,hdelay;
 154         u16 sheight,vscale,vdelay,vtotal;
 155 };
 156
 157 struct bttv_buffer {
 158         /* common v4l buffer stuff -- must be first */
 159         struct videobuf_buffer     vb;
 160
 161         /* bttv specific */
 162         const struct bttv_format   *fmt;
 163         unsigned int               tvnorm;
 164         int                        btformat;
 165         int                        btswap;
 166         struct bttv_geometry       geo;
 167         struct btcx_riscmem        top;
 168         struct btcx_riscmem        bottom;
 169         struct v4l2_rect           crop;
 170         unsigned int               vbi_skip[2];
 171         unsigned int               vbi_count[2];
 172 };
 173
 174 struct bttv_buffer_set {
 175         struct bttv_buffer     *top;       /* top field buffer    */
 176         struct bttv_buffer     *bottom;    /* bottom field buffer */
 177         unsigned int           top_irq;
 178         unsigned int           frame_irq;
 179 };
 180
 181 struct bttv_overlay {
 182         unsigned int           tvnorm;
 183         struct v4l2_rect       w;
 184         enum v4l2_field        field;
 185         struct v4l2_clip       *clips;
 186         int                    nclips;
 187         int                    setup_ok;
 188 };
 189
 190 struct bttv_vbi_fmt {
 191         struct v4l2_vbi_format fmt;
 192
 193         /* fmt.start[] and count[] refer to this video standard. */
 194         const struct bttv_tvnorm *tvnorm;
 195
 196         /* Earliest possible start of video capturing with this
 197            v4l2_vbi_format, in struct bttv_crop.rect units. */
 198         __s32                  end;
 199 };
 200
 201 /* bttv-vbi.c */
 202 void bttv_vbi_fmt_reset(struct bttv_vbi_fmt *f, unsigned int norm);
 203
 204 struct bttv_crop {
 205         /* A cropping rectangle in struct bttv_tvnorm.cropcap units. */
 206         struct v4l2_rect       rect;
 207
 208         /* Scaled image size limits with this crop rect. Divide
 209            max_height, but not min_height, by two when capturing
 210            single fields. See also bttv_crop_reset() and
 211            bttv_crop_adjust() in bttv-driver.c. */
 212         __s32                  min_scaled_width;
 213         __s32                  min_scaled_height;
 214         __s32                  max_scaled_width;
 215         __s32                  max_scaled_height;
 216 };
 217
 218 struct bttv_fh {
 219         /* This must be the first field in this struct */
 220         struct v4l2_fh           fh;
 221
 222         struct bttv              *btv;
 223         int resources;
 224         enum v4l2_buf_type       type;
 225
 226         /* video capture */
 227         struct videobuf_queue    cap;
 228         const struct bttv_format *fmt;
 229         int                      width;
 230         int                      height;
 231
 232         /* video overlay */
 233         const struct bttv_format *ovfmt;
 234         struct bttv_overlay      ov;
 235
 236         /* Application called VIDIOC_S_SELECTION. */
 237         int                      do_crop;
 238
 239         /* vbi capture */
 240         struct videobuf_queue    vbi;
 241         /* Current VBI capture window as seen through this fh (cannot
 242            be global for compatibility with earlier drivers). Protected
 243            by struct bttv.lock and struct bttv_fh.vbi.lock. */
 244         struct bttv_vbi_fmt      vbi_fmt;
 245 };
 246
 247 /* ---------------------------------------------------------- */
 248 /* bttv-risc.c                                                */
 249
 250 /* risc code generators - capture */
 251 int bttv_risc_packed(struct bttv *btv, struct btcx_riscmem *risc,
 252                      struct scatterlist *sglist,
 253                      unsigned int offset, unsigned int bpl,
 254                      unsigned int pitch, unsigned int skip_lines,
 255                      unsigned int store_lines);
 256
 257 /* control dma register + risc main loop */
 258 void bttv_set_dma(struct bttv *btv, int override);
 259 int bttv_risc_init_main(struct bttv *btv);
 260 int bttv_risc_hook(struct bttv *btv, int slot, struct btcx_riscmem *risc,
 261                    int irqflags);
 262
 263 /* capture buffer handling */
 264 int bttv_buffer_risc(struct bttv *btv, struct bttv_buffer *buf);
 265 int bttv_buffer_activate_video(struct bttv *btv,
 266                                struct bttv_buffer_set *set);
 267 int bttv_buffer_activate_vbi(struct bttv *btv,
 268                              struct bttv_buffer *vbi);
 269 void bttv_dma_free(struct videobuf_queue *q, struct bttv *btv,
 270                    struct bttv_buffer *buf);
 271
 272 /* overlay handling */
 273 int bttv_overlay_risc(struct bttv *btv, struct bttv_overlay *ov,
 274                       const struct bttv_format *fmt,
 275                       struct bttv_buffer *buf);
 276
 277
 278 /* ---------------------------------------------------------- */
 279 /* bttv-vbi.c                                                 */
 280
 281 int bttv_try_fmt_vbi_cap(struct file *file, void *fh, struct v4l2_format *f);
 282 int bttv_g_fmt_vbi_cap(struct file *file, void *fh, struct v4l2_format *f);
 283 int bttv_s_fmt_vbi_cap(struct file *file, void *fh, struct v4l2_format *f);
 284
 285 extern const struct videobuf_queue_ops bttv_vbi_qops;
 286
 287 /* ---------------------------------------------------------- */
 288 /* bttv-gpio.c */
 289
 290 extern struct bus_type bttv_sub_bus_type;
 291 int bttv_sub_add_device(struct bttv_core *core, char *name);
 292 int bttv_sub_del_devices(struct bttv_core *core);
 293
 294 /* ---------------------------------------------------------- */
 295 /* bttv-cards.c                                               */
 296
 297 extern int no_overlay;
 298
 299 /* ---------------------------------------------------------- */
 300 /* bttv-input.c                                               */
 301
 302 extern void init_bttv_i2c_ir(struct bttv *btv);
 303
 304 /* ---------------------------------------------------------- */
 305 /* bttv-i2c.c                                                 */
 306 extern int init_bttv_i2c(struct bttv *btv);
 307 extern int fini_bttv_i2c(struct bttv *btv);
 308
 309 /* ---------------------------------------------------------- */
 310 /* bttv-driver.c                                              */
 311
 312 /* insmod options */
 313 extern unsigned int bttv_verbose;
 314 extern unsigned int bttv_debug;
 315 extern unsigned int bttv_gpio;
 316 extern void bttv_gpio_tracking(struct bttv *btv, char *comment);
 317
 318 #define dprintk(fmt, ...)                       \
 319 do {                                            \
 320         if (bttv_debug >= 1)                    \
 321                 pr_debug(fmt, ##__VA_ARGS__);   \
 322 } while (0)
 323 #define dprintk_cont(fmt, ...)                  \
 324 do {                                            \
 325         if (bttv_debug >= 1)                    \
 326                 pr_cont(fmt, ##__VA_ARGS__);    \
 327 } while (0)
 328 #define d2printk(fmt, ...)                      \
 329 do {                                            \
 330         if (bttv_debug >= 2)                    \
 331                 printk(fmt, ##__VA_ARGS__);     \
 332 } while (0)
 333
 334 #define BTTV_MAX_FBUF   0x208000
 335 #define BTTV_TIMEOUT    msecs_to_jiffies(500)    /* 0.5 seconds */
 336 #define BTTV_FREE_IDLE  msecs_to_jiffies(1000)   /* one second */
 337
 338
 339 struct bttv_pll_info {
 340         unsigned int pll_ifreq;    /* PLL input frequency        */
 341         unsigned int pll_ofreq;    /* PLL output frequency       */
 342         unsigned int pll_crystal;  /* Crystal used for input     */
 343         unsigned int pll_current;  /* Currently programmed ofreq */
 344 };
 345
 346 /* for gpio-connected remote control */
 347 struct bttv_input {
 348         struct input_dev      *dev;
 349         char                  name[32];
 350         char                  phys[32];
 351         u32                   mask_keycode;
 352         u32                   mask_keydown;
 353 };
 354
 355 struct bttv_suspend_state {
 356         u32  gpio_enable;
 357         u32  gpio_data;
 358         int  disabled;
 359         int  loop_irq;
 360         struct bttv_buffer_set video;
 361         struct bttv_buffer     *vbi;
 362 };
 363
 364 struct bttv_tea575x_gpio {
 365         u8 data, clk, wren, most;
 366 };
 367
 368 struct bttv {
 369         struct bttv_core c;
 370
 371         /* pci device config */
 372         unsigned short id;
 373         unsigned char revision;
 374         unsigned char __iomem *bt848_mmio;   /* pointer to mmio */
 375
 376         /* card configuration info */
 377         unsigned int cardid;   /* pci subsystem id (bt878 based ones) */
 378         unsigned int tuner_type;  /* tuner chip type */
 379         unsigned int tda9887_conf;
 380         unsigned int svhs, dig;
 381         unsigned int has_saa6588:1;
 382         struct bttv_pll_info pll;
 383         int triton1;
 384         int gpioirq;
 385
 386         int use_i2c_hw;
 387
 388         /* old gpio interface */
 389         int shutdown;
 390
 391         void (*volume_gpio)(struct bttv *btv, __u16 volume);
 392         void (*audio_mode_gpio)(struct bttv *btv, struct v4l2_tuner *tuner, int set);
 393
 394         /* new gpio interface */
 395         spinlock_t gpio_lock;
 396
 397         /* i2c layer */
 398         struct i2c_algo_bit_data   i2c_algo;
 399         struct i2c_client          i2c_client;
 400         int                        i2c_state, i2c_rc;
 401         int                        i2c_done;
 402         wait_queue_head_t          i2c_queue;
 403         struct v4l2_subdev        *sd_msp34xx;
 404         struct v4l2_subdev        *sd_tvaudio;
 405         struct v4l2_subdev        *sd_tda7432;
 406
 407         /* video4linux (1) */
 408         struct video_device video_dev;
 409         struct video_device radio_dev;
 410         struct video_device vbi_dev;
 411
 412         /* controls */
 413         struct v4l2_ctrl_handler   ctrl_handler;
 414         struct v4l2_ctrl_handler   radio_ctrl_handler;
 415
 416         /* infrared remote */
 417         int has_remote;
 418         struct bttv_ir *remote;
 419
 420         /* I2C remote data */
 421         struct IR_i2c_init_data    init_data;
 422
 423         /* locking */
 424         spinlock_t s_lock;
 425         struct mutex lock;
 426         int resources;
 427
 428         /* video state */
 429         unsigned int input;
 430         unsigned int audio_input;
 431         unsigned int mute;
 432         unsigned long tv_freq;
 433         unsigned int tvnorm;
 434         v4l2_std_id std;
 435         int hue, contrast, bright, saturation;
 436         struct v4l2_framebuffer fbuf;
 437         unsigned int field_count;
 438
 439         /* various options */
 440         int opt_combfilter;
 441         int opt_automute;
 442         int opt_vcr_hack;
 443         int opt_uv_ratio;
 444
 445         /* radio data/state */
 446         int has_radio;
 447         int has_radio_tuner;
 448         int radio_user;
 449         int radio_uses_msp_demodulator;
 450         unsigned long radio_freq;
 451
 452         /* miro/pinnacle + Aimslab VHX
 453            philips matchbox (tea5757 radio tuner) support */
 454         int has_tea575x;
 455         struct bttv_tea575x_gpio tea_gpio;
 456         struct snd_tea575x tea;
 457
 458         /* ISA stuff (Terratec Active Radio Upgrade) */
 459         int mbox_ior;
 460         int mbox_iow;
 461         int mbox_csel;
 462
 463         /* switch status for multi-controller cards */
 464         char sw_status[4];
 465
 466         /* risc memory management data
 467            - must acquire s_lock before changing these
 468            - only the irq handler is supported to touch top + bottom + vcurr */
 469         struct btcx_riscmem     main;
 470         struct bttv_buffer      *screen;    /* overlay             */
 471         struct list_head        capture;    /* video capture queue */
 472         struct list_head        vcapture;   /* vbi capture queue   */
 473         struct bttv_buffer_set  curr;       /* active buffers      */
 474         struct bttv_buffer      *cvbi;      /* active vbi buffer   */
 475         int                     loop_irq;
 476         int                     new_input;
 477
 478         unsigned long cap_ctl;
 479         unsigned long dma_on;
 480         struct timer_list timeout;
 481         struct bttv_suspend_state state;
 482
 483         /* stats */
 484         unsigned int errors;
 485         unsigned int framedrop;
 486         unsigned int irq_total;
 487         unsigned int irq_me;
 488
 489         unsigned int users;
 490         struct bttv_fh init;
 491
 492         /* used to make dvb-bt8xx autoloadable */
 493         struct work_struct request_module_wk;
 494
 495         /* Default (0) and current (1) video capturing and overlay
 496            cropping parameters in bttv_tvnorm.cropcap units. Protected
 497            by bttv.lock. */
 498         struct bttv_crop crop[2];
 499
 500         /* Earliest possible start of video capturing in
 501            bttv_tvnorm.cropcap line units. Set by check_alloc_btres()
 502            and free_btres(). Protected by bttv.lock. */
 503         __s32                   vbi_end;
 504
 505         /* Latest possible end of VBI capturing (= crop[x].rect.top when
 506            VIDEO_RESOURCES are locked). Set by check_alloc_btres()
 507            and free_btres(). Protected by bttv.lock. */
 508         __s32                   crop_start;
 509 };
 510
 511 static inline struct bttv *to_bttv(struct v4l2_device *v4l2_dev)
 512 {
 513         return container_of(v4l2_dev, struct bttv, c.v4l2_dev);
 514 }
 515
 516 /* our devices */
 517 #define BTTV_MAX 32
 518 extern unsigned int bttv_num;
 519 extern struct bttv *bttvs[BTTV_MAX];
 520
 521 static inline unsigned int bttv_muxsel(const struct bttv *btv,
 522                                        unsigned int input)
 523 {
 524         return (bttv_tvcards[btv->c.type].muxsel >> (input * 2)) & 3;
 525 }
 526
 527 #endif
 528
 529 #define btwrite(dat,adr)    writel((dat), btv->bt848_mmio+(adr))
 530 #define btread(adr)         readl(btv->bt848_mmio+(adr))
 531
 532 #define btand(dat,adr)      btwrite((dat) & btread(adr), adr)
 533 #define btor(dat,adr)       btwrite((dat) | btread(adr), adr)
 534 #define btaor(dat,mask,adr) btwrite((dat) | ((mask) & btread(adr)), adr)
 535
 536 #endif /* _BTTVP_H_ */