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(0,9,17)
  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/videodev.h>
  36 #include <linux/pci.h>
  37 #include <linux/input.h>
  38 #include <linux/mutex.h>
  39 #include <linux/scatterlist.h>
  40 #include <asm/io.h>
  41 #include <media/v4l2-common.h>
  42
  43 #include <linux/device.h>
  44 #include <media/videobuf-dma-sg.h>
  45 #include <media/tuner.h>
  46 #include <media/tveeprom.h>
  47 #include <media/ir-common.h>
  48
  49
  50 #include "bt848.h"
  51 #include "bttv.h"
  52 #include "btcx-risc.h"
  53
  54 #ifdef __KERNEL__
  55
  56 #define FORMAT_FLAGS_DITHER       0x01
  57 #define FORMAT_FLAGS_PACKED       0x02
  58 #define FORMAT_FLAGS_PLANAR       0x04
  59 #define FORMAT_FLAGS_RAW          0x08
  60 #define FORMAT_FLAGS_CrCb         0x10
  61
  62 #define RISC_SLOT_O_VBI        4
  63 #define RISC_SLOT_O_FIELD      6
  64 #define RISC_SLOT_E_VBI       10
  65 #define RISC_SLOT_E_FIELD     12
  66 #define RISC_SLOT_LOOP        14
  67
  68 #define RESOURCE_OVERLAY       1
  69 #define RESOURCE_VIDEO_STREAM  2
  70 #define RESOURCE_VBI           4
  71 #define RESOURCE_VIDEO_READ    8
  72
  73 #define RAW_LINES            640
  74 #define RAW_BPL             1024
  75
  76 #define UNSET (-1U)
  77
  78 /* Min. value in VDELAY register. */
  79 #define MIN_VDELAY 2
  80 /* Even to get Cb first, odd for Cr. */
  81 #define MAX_HDELAY (0x3FF & -2)
  82 /* Limits scaled width, which must be a multiple of 4. */
  83 #define MAX_HACTIVE (0x3FF & -4)
  84
  85 #define clamp(x, low, high) min (max (low, x), high)
  86
  87 #define BTTV_NORMS    (\
  88                 V4L2_STD_PAL    | V4L2_STD_PAL_N | \
  89                 V4L2_STD_PAL_Nc | V4L2_STD_SECAM | \
  90                 V4L2_STD_NTSC   | V4L2_STD_PAL_M | \
  91                 V4L2_STD_PAL_60)
  92 /* ---------------------------------------------------------- */
  93
  94 struct bttv_tvnorm {
  95         int   v4l2_id;
  96         char  *name;
  97         u32   Fsc;
  98         u16   swidth, sheight; /* scaled standard width, height */
  99         u16   totalwidth;
 100         u8    adelay, bdelay, iform;
 101         u32   scaledtwidth;
 102         u16   hdelayx1, hactivex1;
 103         u16   vdelay;
 104         u8    vbipack;
 105         u16   vtotal;
 106         int   sram;
 107         /* ITU-R frame line number of the first VBI line we can
 108            capture, of the first and second field. The last possible line
 109            is determined by cropcap.bounds. */
 110         u16   vbistart[2];
 111         /* Horizontally this counts fCLKx1 samples following the leading
 112            edge of the horizontal sync pulse, vertically ITU-R frame line
 113            numbers of the first field times two (2, 4, 6, ... 524 or 624). */
 114         struct v4l2_cropcap cropcap;
 115 };
 116 extern const struct bttv_tvnorm bttv_tvnorms[];
 117
 118 struct bttv_format {
 119         char *name;
 120         int  fourcc;          /* video4linux 2      */
 121         int  btformat;        /* BT848_COLOR_FMT_*  */
 122         int  btswap;          /* BT848_COLOR_CTL_*  */
 123         int  depth;           /* bit/pixel          */
 124         int  flags;
 125         int  hshift,vshift;   /* for planar modes   */
 126 };
 127
 128 /* ---------------------------------------------------------- */
 129
 130 struct bttv_geometry {
 131         u8  vtc,crop,comb;
 132         u16 width,hscale,hdelay;
 133         u16 sheight,vscale,vdelay,vtotal;
 134 };
 135
 136 struct bttv_buffer {
 137         /* common v4l buffer stuff -- must be first */
 138         struct videobuf_buffer     vb;
 139
 140         /* bttv specific */
 141         const struct bttv_format   *fmt;
 142         int                        tvnorm;
 143         int                        btformat;
 144         int                        btswap;
 145         struct bttv_geometry       geo;
 146         struct btcx_riscmem        top;
 147         struct btcx_riscmem        bottom;
 148         struct v4l2_rect           crop;
 149         unsigned int               vbi_skip[2];
 150         unsigned int               vbi_count[2];
 151 };
 152
 153 struct bttv_buffer_set {
 154         struct bttv_buffer     *top;       /* top field buffer    */
 155         struct bttv_buffer     *bottom;    /* bottom field buffer */
 156         unsigned int           top_irq;
 157         unsigned int           frame_irq;
 158 };
 159
 160 struct bttv_overlay {
 161         int                    tvnorm;
 162         struct v4l2_rect       w;
 163         enum v4l2_field        field;
 164         struct v4l2_clip       *clips;
 165         int                    nclips;
 166         int                    setup_ok;
 167 };
 168
 169 struct bttv_vbi_fmt {
 170         struct v4l2_vbi_format fmt;
 171
 172         /* fmt.start[] and count[] refer to this video standard. */
 173         const struct bttv_tvnorm *tvnorm;
 174
 175         /* Earliest possible start of video capturing with this
 176            v4l2_vbi_format, in struct bttv_crop.rect units. */
 177         __s32                  end;
 178 };
 179
 180 /* bttv-vbi.c */
 181 void bttv_vbi_fmt_reset(struct bttv_vbi_fmt *f, int norm);
 182
 183 struct bttv_crop {
 184         /* A cropping rectangle in struct bttv_tvnorm.cropcap units. */
 185         struct v4l2_rect       rect;
 186
 187         /* Scaled image size limits with this crop rect. Divide
 188            max_height, but not min_height, by two when capturing
 189            single fields. See also bttv_crop_reset() and
 190            bttv_crop_adjust() in bttv-driver.c. */
 191         __s32                  min_scaled_width;
 192         __s32                  min_scaled_height;
 193         __s32                  max_scaled_width;
 194         __s32                  max_scaled_height;
 195 };
 196
 197 struct bttv_fh {
 198         struct bttv              *btv;
 199         int resources;
 200 #ifdef VIDIOC_G_PRIORITY
 201         enum v4l2_priority       prio;
 202 #endif
 203         enum v4l2_buf_type       type;
 204
 205         /* video capture */
 206         struct videobuf_queue    cap;
 207         const struct bttv_format *fmt;
 208         int                      width;
 209         int                      height;
 210
 211         /* video overlay */
 212         const struct bttv_format *ovfmt;
 213         struct bttv_overlay      ov;
 214
 215         /* Application called VIDIOC_S_CROP. */
 216         int                      do_crop;
 217
 218         /* vbi capture */
 219         struct videobuf_queue    vbi;
 220         /* Current VBI capture window as seen through this fh (cannot
 221            be global for compatibility with earlier drivers). Protected
 222            by struct bttv.lock and struct bttv_fh.vbi.lock. */
 223         struct bttv_vbi_fmt      vbi_fmt;
 224 };
 225
 226 /* ---------------------------------------------------------- */
 227 /* bttv-risc.c                                                */
 228
 229 /* risc code generators - capture */
 230 int bttv_risc_packed(struct bttv *btv, struct btcx_riscmem *risc,
 231                      struct scatterlist *sglist,
 232                      unsigned int offset, unsigned int bpl,
 233                      unsigned int pitch, unsigned int skip_lines,
 234                      unsigned int store_lines);
 235
 236 /* control dma register + risc main loop */
 237 void bttv_set_dma(struct bttv *btv, int override);
 238 int bttv_risc_init_main(struct bttv *btv);
 239 int bttv_risc_hook(struct bttv *btv, int slot, struct btcx_riscmem *risc,
 240                    int irqflags);
 241
 242 /* capture buffer handling */
 243 int bttv_buffer_risc(struct bttv *btv, struct bttv_buffer *buf);
 244 int bttv_buffer_activate_video(struct bttv *btv,
 245                                struct bttv_buffer_set *set);
 246 int bttv_buffer_activate_vbi(struct bttv *btv,
 247                              struct bttv_buffer *vbi);
 248 void bttv_dma_free(struct videobuf_queue *q, struct bttv *btv,
 249                    struct bttv_buffer *buf);
 250
 251 /* overlay handling */
 252 int bttv_overlay_risc(struct bttv *btv, struct bttv_overlay *ov,
 253                       const struct bttv_format *fmt,
 254                       struct bttv_buffer *buf);
 255
 256
 257 /* ---------------------------------------------------------- */
 258 /* bttv-vbi.c                                                 */
 259
 260 int bttv_try_fmt_vbi(struct file *file, void *fh, struct v4l2_format *f);
 261 int bttv_g_fmt_vbi(struct file *file, void *fh, struct v4l2_format *f);
 262 int bttv_s_fmt_vbi(struct file *file, void *fh, struct v4l2_format *f);
 263
 264 extern struct videobuf_queue_ops bttv_vbi_qops;
 265
 266 /* ---------------------------------------------------------- */
 267 /* bttv-gpio.c */
 268
 269
 270 extern struct bus_type bttv_sub_bus_type;
 271 int bttv_sub_add_device(struct bttv_core *core, char *name);
 272 int bttv_sub_del_devices(struct bttv_core *core);
 273
 274
 275 /* ---------------------------------------------------------- */
 276 /* bttv-driver.c                                              */
 277
 278 /* insmod options */
 279 extern unsigned int bttv_verbose;
 280 extern unsigned int bttv_debug;
 281 extern unsigned int bttv_gpio;
 282 extern void bttv_gpio_tracking(struct bttv *btv, char *comment);
 283 extern int init_bttv_i2c(struct bttv *btv);
 284 extern int fini_bttv_i2c(struct bttv *btv);
 285
 286 #define bttv_printk if (bttv_verbose) printk
 287 #define dprintk  if (bttv_debug >= 1) printk
 288 #define d2printk if (bttv_debug >= 2) printk
 289
 290 #define BTTV_MAX_FBUF   0x208000
 291 #define BTTV_TIMEOUT    msecs_to_jiffies(500)    /* 0.5 seconds */
 292 #define BTTV_FREE_IDLE  msecs_to_jiffies(1000)   /* one second */
 293
 294
 295 struct bttv_pll_info {
 296         unsigned int pll_ifreq;    /* PLL input frequency        */
 297         unsigned int pll_ofreq;    /* PLL output frequency       */
 298         unsigned int pll_crystal;  /* Crystal used for input     */
 299         unsigned int pll_current;  /* Currently programmed ofreq */
 300 };
 301
 302 /* for gpio-connected remote control */
 303 struct bttv_input {
 304         struct input_dev      *dev;
 305         struct ir_input_state ir;
 306         char                  name[32];
 307         char                  phys[32];
 308         u32                   mask_keycode;
 309         u32                   mask_keydown;
 310 };
 311
 312 struct bttv_suspend_state {
 313         u32  gpio_enable;
 314         u32  gpio_data;
 315         int  disabled;
 316         int  loop_irq;
 317         struct bttv_buffer_set video;
 318         struct bttv_buffer     *vbi;
 319 };
 320
 321 struct bttv {
 322         struct bttv_core c;
 323
 324         /* pci device config */
 325         unsigned short id;
 326         unsigned char revision;
 327         unsigned char __iomem *bt848_mmio;   /* pointer to mmio */
 328
 329         /* card configuration info */
 330         unsigned int cardid;   /* pci subsystem id (bt878 based ones) */
 331         unsigned int tuner_type;  /* tuner chip type */
 332         unsigned int tda9887_conf;
 333         unsigned int svhs;
 334         struct bttv_pll_info pll;
 335         int triton1;
 336         int gpioirq;
 337         int (*custom_irq)(struct bttv *btv);
 338
 339         int use_i2c_hw;
 340
 341         /* old gpio interface */
 342         wait_queue_head_t gpioq;
 343         int shutdown;
 344
 345         void (*volume_gpio)(struct bttv *btv, __u16 volume);
 346         void (*audio_mode_gpio)(struct bttv *btv, struct v4l2_tuner *tuner, int set);
 347
 348         /* new gpio interface */
 349         spinlock_t gpio_lock;
 350
 351         /* i2c layer */
 352         struct i2c_algo_bit_data   i2c_algo;
 353         struct i2c_client          i2c_client;
 354         int                        i2c_state, i2c_rc;
 355         int                        i2c_done;
 356         wait_queue_head_t          i2c_queue;
 357         struct i2c_client         *i2c_msp34xx_client;
 358         struct i2c_client         *i2c_tvaudio_client;
 359
 360         /* video4linux (1) */
 361         struct video_device *video_dev;
 362         struct video_device *radio_dev;
 363         struct video_device *vbi_dev;
 364
 365         /* infrared remote */
 366         int has_remote;
 367         struct card_ir *remote;
 368
 369         /* locking */
 370         spinlock_t s_lock;
 371         struct mutex lock;
 372         int resources;
 373 #ifdef VIDIOC_G_PRIORITY
 374         struct v4l2_prio_state prio;
 375 #endif
 376
 377         /* video state */
 378         unsigned int input;
 379         unsigned int audio;
 380         unsigned int mute;
 381         unsigned long freq;
 382         int tvnorm,hue,contrast,bright,saturation;
 383         struct v4l2_framebuffer fbuf;
 384         unsigned int field_count;
 385
 386         /* various options */
 387         int opt_combfilter;
 388         int opt_lumafilter;
 389         int opt_automute;
 390         int opt_chroma_agc;
 391         int opt_adc_crush;
 392         int opt_vcr_hack;
 393         int opt_whitecrush_upper;
 394         int opt_whitecrush_lower;
 395         int opt_uv_ratio;
 396         int opt_full_luma_range;
 397         int opt_coring;
 398
 399         /* radio data/state */
 400         int has_radio;
 401         int radio_user;
 402
 403         /* miro/pinnacle + Aimslab VHX
 404            philips matchbox (tea5757 radio tuner) support */
 405         int has_matchbox;
 406         int mbox_we;
 407         int mbox_data;
 408         int mbox_clk;
 409         int mbox_most;
 410         int mbox_mask;
 411
 412         /* ISA stuff (Terratec Active Radio Upgrade) */
 413         int mbox_ior;
 414         int mbox_iow;
 415         int mbox_csel;
 416
 417         /* risc memory management data
 418            - must acquire s_lock before changing these
 419            - only the irq handler is supported to touch top + bottom + vcurr */
 420         struct btcx_riscmem     main;
 421         struct bttv_buffer      *screen;    /* overlay             */
 422         struct list_head        capture;    /* video capture queue */
 423         struct list_head        vcapture;   /* vbi capture queue   */
 424         struct bttv_buffer_set  curr;       /* active buffers      */
 425         struct bttv_buffer      *cvbi;      /* active vbi buffer   */
 426         int                     loop_irq;
 427         int                     new_input;
 428
 429         unsigned long cap_ctl;
 430         unsigned long dma_on;
 431         struct timer_list timeout;
 432         struct bttv_suspend_state state;
 433
 434         /* stats */
 435         unsigned int errors;
 436         unsigned int framedrop;
 437         unsigned int irq_total;
 438         unsigned int irq_me;
 439
 440         unsigned int users;
 441         struct bttv_fh init;
 442
 443         /* used to make dvb-bt8xx autoloadable */
 444         struct work_struct request_module_wk;
 445
 446         /* Default (0) and current (1) video capturing and overlay
 447            cropping parameters in bttv_tvnorm.cropcap units. Protected
 448            by bttv.lock. */
 449         struct bttv_crop crop[2];
 450
 451         /* Earliest possible start of video capturing in
 452            bttv_tvnorm.cropcap line units. Set by check_alloc_btres()
 453            and free_btres(). Protected by bttv.lock. */
 454         __s32                   vbi_end;
 455
 456         /* Latest possible end of VBI capturing (= crop[x].rect.top when
 457            VIDEO_RESOURCES are locked). Set by check_alloc_btres()
 458            and free_btres(). Protected by bttv.lock. */
 459         __s32                   crop_start;
 460 };
 461
 462 /* our devices */
 463 #define BTTV_MAX 16
 464 extern unsigned int bttv_num;
 465 extern struct bttv bttvs[BTTV_MAX];
 466
 467 #endif
 468
 469 #define btwrite(dat,adr)    writel((dat), btv->bt848_mmio+(adr))
 470 #define btread(adr)         readl(btv->bt848_mmio+(adr))
 471
 472 #define btand(dat,adr)      btwrite((dat) & btread(adr), adr)
 473 #define btor(dat,adr)       btwrite((dat) | btread(adr), adr)
 474 #define btaor(dat,mask,adr) btwrite((dat) | ((mask) & btread(adr)), adr)
 475
 476 #endif /* _BTTVP_H_ */
 477
 478 /*
 479  * Local variables:
 480  * c-basic-offset: 8
 481  * End:
 482  */