drivers/media/video/zoran/zoran.h

   1 /*
   2  * zoran - Iomega Buz driver
   3  *
   4  * Copyright (C) 1999 Rainer Johanni <Rainer@Johanni.de>
   5  *
   6  * based on
   7  *
   8  * zoran.0.0.3 Copyright (C) 1998 Dave Perks <dperks@ibm.net>
   9  *
  10  * and
  11  *
  12  * bttv - Bt848 frame grabber driver
  13  * Copyright (C) 1996,97,98 Ralph  Metzler (rjkm@thp.uni-koeln.de)
  14  *                        & Marcus Metzler (mocm@thp.uni-koeln.de)
  15  *
  16  * This program is free software; you can redistribute it and/or modify
  17  * it under the terms of the GNU General Public License as published by
  18  * the Free Software Foundation; either version 2 of the License, or
  19  * (at your option) any later version.
  20  *
  21  * This program is distributed in the hope that it will be useful,
  22  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  23  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  24  * GNU General Public License for more details.
  25  *
  26  * You should have received a copy of the GNU General Public License
  27  * along with this program; if not, write to the Free Software
  28  * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  29  */
  30
  31 #ifndef _BUZ_H_
  32 #define _BUZ_H_
  33
  34 #include <media/v4l2-device.h>
  35
  36 struct zoran_sync {
  37         unsigned long frame;    /* number of buffer that has been free'd */
  38         unsigned long length;   /* number of code bytes in buffer (capture only) */
  39         unsigned long seq;      /* frame sequence number */
  40         struct timeval timestamp;       /* timestamp */
  41 };
  42
  43
  44 #define ZORAN_NAME    "ZORAN"   /* name of the device */
  45
  46 #define ZR_DEVNAME(zr) ((zr)->name)
  47
  48 #define   BUZ_MAX_WIDTH   (zr->timing->Wa)
  49 #define   BUZ_MAX_HEIGHT  (zr->timing->Ha)
  50 #define   BUZ_MIN_WIDTH    32   /* never display less than 32 pixels */
  51 #define   BUZ_MIN_HEIGHT   24   /* never display less than 24 rows */
  52
  53 #define BUZ_NUM_STAT_COM    4
  54 #define BUZ_MASK_STAT_COM   3
  55
  56 #define BUZ_MAX_FRAME     256   /* Must be a power of 2 */
  57 #define BUZ_MASK_FRAME    255   /* Must be BUZ_MAX_FRAME-1 */
  58
  59 #define BUZ_MAX_INPUT       16
  60
  61 #if VIDEO_MAX_FRAME <= 32
  62 #   define   V4L_MAX_FRAME   32
  63 #elif VIDEO_MAX_FRAME <= 64
  64 #   define   V4L_MAX_FRAME   64
  65 #else
  66 #   error   "Too many video frame buffers to handle"
  67 #endif
  68 #define   V4L_MASK_FRAME   (V4L_MAX_FRAME - 1)
  69
  70 #define MAX_FRAME (BUZ_MAX_FRAME > VIDEO_MAX_FRAME ? BUZ_MAX_FRAME : VIDEO_MAX_FRAME)
  71
  72 #include "zr36057.h"
  73
  74 enum card_type {
  75         UNKNOWN = -1,
  76
  77         /* Pinnacle/Miro */
  78         DC10_old,               /* DC30 like */
  79         DC10_new,               /* DC10plus like */
  80         DC10plus,
  81         DC30,
  82         DC30plus,
  83
  84         /* Linux Media Labs */
  85         LML33,
  86         LML33R10,
  87
  88         /* Iomega */
  89         BUZ,
  90
  91         /* AverMedia */
  92         AVS6EYES,
  93
  94         /* total number of cards */
  95         NUM_CARDS
  96 };
  97
  98 enum zoran_codec_mode {
  99         BUZ_MODE_IDLE,          /* nothing going on */
 100         BUZ_MODE_MOTION_COMPRESS,       /* grabbing frames */
 101         BUZ_MODE_MOTION_DECOMPRESS,     /* playing frames */
 102         BUZ_MODE_STILL_COMPRESS,        /* still frame conversion */
 103         BUZ_MODE_STILL_DECOMPRESS       /* still frame conversion */
 104 };
 105
 106 enum zoran_buffer_state {
 107         BUZ_STATE_USER,         /* buffer is owned by application */
 108         BUZ_STATE_PEND,         /* buffer is queued in pend[] ready to feed to I/O */
 109         BUZ_STATE_DMA,          /* buffer is queued in dma[] for I/O */
 110         BUZ_STATE_DONE          /* buffer is ready to return to application */
 111 };
 112
 113 enum zoran_map_mode {
 114         ZORAN_MAP_MODE_RAW,
 115         ZORAN_MAP_MODE_JPG_REC,
 116 #define ZORAN_MAP_MODE_JPG ZORAN_MAP_MODE_JPG_REC
 117         ZORAN_MAP_MODE_JPG_PLAY,
 118 };
 119
 120 enum gpio_type {
 121         ZR_GPIO_JPEG_SLEEP = 0,
 122         ZR_GPIO_JPEG_RESET,
 123         ZR_GPIO_JPEG_FRAME,
 124         ZR_GPIO_VID_DIR,
 125         ZR_GPIO_VID_EN,
 126         ZR_GPIO_VID_RESET,
 127         ZR_GPIO_CLK_SEL1,
 128         ZR_GPIO_CLK_SEL2,
 129         ZR_GPIO_MAX,
 130 };
 131
 132 enum gpcs_type {
 133         GPCS_JPEG_RESET = 0,
 134         GPCS_JPEG_START,
 135         GPCS_MAX,
 136 };
 137
 138 struct zoran_format {
 139         char *name;
 140         __u32 fourcc;
 141         int colorspace;
 142         int depth;
 143         __u32 flags;
 144         __u32 vfespfr;
 145 };
 146 /* flags */
 147 #define ZORAN_FORMAT_COMPRESSED 1<<0
 148 #define ZORAN_FORMAT_OVERLAY    1<<1
 149 #define ZORAN_FORMAT_CAPTURE    1<<2
 150 #define ZORAN_FORMAT_PLAYBACK   1<<3
 151
 152 /* overlay-settings */
 153 struct zoran_overlay_settings {
 154         int is_set;
 155         int x, y, width, height;        /* position */
 156         int clipcount;          /* position and number of clips */
 157         const struct zoran_format *format;      /* overlay format */
 158 };
 159
 160 /* v4l-capture settings */
 161 struct zoran_v4l_settings {
 162         int width, height, bytesperline;        /* capture size */
 163         const struct zoran_format *format;      /* capture format */
 164 };
 165
 166 /* jpg-capture/-playback settings */
 167 struct zoran_jpg_settings {
 168         int decimation;         /* this bit is used to set everything to default */
 169         int HorDcm, VerDcm, TmpDcm;     /* capture decimation settings (TmpDcm=1 means both fields) */
 170         int field_per_buff, odd_even;   /* field-settings (odd_even=1 (+TmpDcm=1) means top-field-first) */
 171         int img_x, img_y, img_width, img_height;        /* crop settings (subframe capture) */
 172         struct v4l2_jpegcompression jpg_comp;   /* JPEG-specific capture settings */
 173 };
 174
 175 struct zoran_mapping {
 176         struct file *file;
 177         int count;
 178 };
 179
 180 struct zoran_buffer {
 181         struct zoran_mapping *map;
 182         enum zoran_buffer_state state;  /* state: unused/pending/dma/done */
 183         struct zoran_sync bs;           /* DONE: info to return to application */
 184         union {
 185                 struct {
 186                         __le32 *frag_tab;       /* addresses of frag table */
 187                         u32 frag_tab_bus;       /* same value cached to save time in ISR */
 188                 } jpg;
 189                 struct {
 190                         char *fbuffer;          /* virtual address of frame buffer */
 191                         unsigned long fbuffer_phys;/* physical address of frame buffer */
 192                         unsigned long fbuffer_bus;/* bus address of frame buffer */
 193                 } v4l;
 194         };
 195 };
 196
 197 enum zoran_lock_activity {
 198         ZORAN_FREE,             /* free for use */
 199         ZORAN_ACTIVE,           /* active but unlocked */
 200         ZORAN_LOCKED,           /* locked */
 201 };
 202
 203 /* buffer collections */
 204 struct zoran_buffer_col {
 205         enum zoran_lock_activity active;        /* feature currently in use? */
 206         unsigned int num_buffers, buffer_size;
 207         struct zoran_buffer buffer[MAX_FRAME];  /* buffers */
 208         u8 allocated;           /* Flag if buffers are allocated  */
 209         u8 need_contiguous;     /* Flag if contiguous buffers are needed */
 210         /* only applies to jpg buffers, raw buffers are always contiguous */
 211 };
 212
 213 struct zoran;
 214
 215 /* zoran_fh contains per-open() settings */
 216 struct zoran_fh {
 217         struct zoran *zr;
 218
 219         enum zoran_map_mode map_mode;           /* Flag which bufferset will map by next mmap() */
 220
 221         struct zoran_overlay_settings overlay_settings;
 222         u32 *overlay_mask;                      /* overlay mask */
 223         enum zoran_lock_activity overlay_active;/* feature currently in use? */
 224
 225         struct zoran_buffer_col buffers;        /* buffers' info */
 226
 227         struct zoran_v4l_settings v4l_settings; /* structure with a lot of things to play with */
 228         struct zoran_jpg_settings jpg_settings; /* structure with a lot of things to play with */
 229 };
 230
 231 struct card_info {
 232         enum card_type type;
 233         char name[32];
 234         const char *i2c_decoder;        /* i2c decoder device */
 235         const unsigned short *addrs_decoder;
 236         const char *i2c_encoder;        /* i2c encoder device */
 237         const unsigned short *addrs_encoder;
 238         u16 video_vfe, video_codec;                     /* videocodec types */
 239         u16 audio_chip;                                 /* audio type */
 240
 241         int inputs;             /* number of video inputs */
 242         struct input {
 243                 int muxsel;
 244                 char name[32];
 245         } input[BUZ_MAX_INPUT];
 246
 247         v4l2_std_id norms;
 248         struct tvnorm *tvn[3];  /* supported TV norms */
 249
 250         u32 jpeg_int;           /* JPEG interrupt */
 251         u32 vsync_int;          /* VSYNC interrupt */
 252         s8 gpio[ZR_GPIO_MAX];
 253         u8 gpcs[GPCS_MAX];
 254
 255         struct vfe_polarity vfe_pol;
 256         u8 gpio_pol[ZR_GPIO_MAX];
 257
 258         /* is the /GWS line connected? */
 259         u8 gws_not_connected;
 260
 261         /* avs6eyes mux setting */
 262         u8 input_mux;
 263
 264         void (*init) (struct zoran * zr);
 265 };
 266
 267 struct zoran {
 268         struct v4l2_device v4l2_dev;
 269         struct video_device *video_dev;
 270
 271         struct i2c_adapter i2c_adapter; /* */
 272         struct i2c_algo_bit_data i2c_algo;      /* */
 273         u32 i2cbr;
 274
 275         struct v4l2_subdev *decoder;    /* video decoder sub-device */
 276         struct v4l2_subdev *encoder;    /* video encoder sub-device */
 277
 278         struct videocodec *codec;       /* video codec */
 279         struct videocodec *vfe; /* video front end */
 280
 281         struct mutex resource_lock;     /* prevent evil stuff */
 282         struct mutex other_lock;        /* please merge with above */
 283
 284         u8 initialized;         /* flag if zoran has been correctly initialized */
 285         int user;               /* number of current users */
 286         struct card_info card;
 287         struct tvnorm *timing;
 288
 289         unsigned short id;      /* number of this device */
 290         char name[32];          /* name of this device */
 291         struct pci_dev *pci_dev;        /* PCI device */
 292         unsigned char revision; /* revision of zr36057 */
 293         unsigned char __iomem *zr36057_mem;/* pointer to mapped IO memory */
 294
 295         spinlock_t spinlock;    /* Spinlock */
 296
 297         /* Video for Linux parameters */
 298         int input;      /* card's norm and input */
 299         v4l2_std_id norm;
 300
 301         /* Current buffer params */
 302         void    *vbuf_base;
 303         int     vbuf_height, vbuf_width;
 304         int     vbuf_depth;
 305         int     vbuf_bytesperline;
 306
 307         struct zoran_overlay_settings overlay_settings;
 308         u32 *overlay_mask;      /* overlay mask */
 309         enum zoran_lock_activity overlay_active;        /* feature currently in use? */
 310
 311         wait_queue_head_t v4l_capq;
 312
 313         int v4l_overlay_active; /* Overlay grab is activated */
 314         int v4l_memgrab_active; /* Memory grab is activated */
 315
 316         int v4l_grab_frame;     /* Frame number being currently grabbed */
 317 #define NO_GRAB_ACTIVE (-1)
 318         unsigned long v4l_grab_seq;     /* Number of frames grabbed */
 319         struct zoran_v4l_settings v4l_settings; /* structure with a lot of things to play with */
 320
 321         /* V4L grab queue of frames pending */
 322         unsigned long v4l_pend_head;
 323         unsigned long v4l_pend_tail;
 324         unsigned long v4l_sync_tail;
 325         int v4l_pend[V4L_MAX_FRAME];
 326         struct zoran_buffer_col v4l_buffers;    /* V4L buffers' info */
 327
 328         /* Buz MJPEG parameters */
 329         enum zoran_codec_mode codec_mode;       /* status of codec */
 330         struct zoran_jpg_settings jpg_settings; /* structure with a lot of things to play with */
 331
 332         wait_queue_head_t jpg_capq;     /* wait here for grab to finish */
 333
 334         /* grab queue counts/indices, mask with BUZ_MASK_STAT_COM before using as index */
 335         /* (dma_head - dma_tail) is number active in DMA, must be <= BUZ_NUM_STAT_COM */
 336         /* (value & BUZ_MASK_STAT_COM) corresponds to index in stat_com table */
 337         unsigned long jpg_que_head;     /* Index where to put next buffer which is queued */
 338         unsigned long jpg_dma_head;     /* Index of next buffer which goes into stat_com  */
 339         unsigned long jpg_dma_tail;     /* Index of last buffer in stat_com               */
 340         unsigned long jpg_que_tail;     /* Index of last buffer in queue                  */
 341         unsigned long jpg_seq_num;      /* count of frames since grab/play started        */
 342         unsigned long jpg_err_seq;      /* last seq_num before error                      */
 343         unsigned long jpg_err_shift;
 344         unsigned long jpg_queued_num;   /* count of frames queued since grab/play started */
 345
 346         /* zr36057's code buffer table */
 347         __le32 *stat_com;               /* stat_com[i] is indexed by dma_head/tail & BUZ_MASK_STAT_COM */
 348
 349         /* (value & BUZ_MASK_FRAME) corresponds to index in pend[] queue */
 350         int jpg_pend[BUZ_MAX_FRAME];
 351
 352         /* array indexed by frame number */
 353         struct zoran_buffer_col jpg_buffers;    /* MJPEG buffers' info */
 354
 355         /* Additional stuff for testing */
 356 #ifdef CONFIG_PROC_FS
 357         struct proc_dir_entry *zoran_proc;
 358 #else
 359         void *zoran_proc;
 360 #endif
 361         int testing;
 362         int jpeg_error;
 363         int intr_counter_GIRQ1;
 364         int intr_counter_GIRQ0;
 365         int intr_counter_CodRepIRQ;
 366         int intr_counter_JPEGRepIRQ;
 367         int field_counter;
 368         int IRQ1_in;
 369         int IRQ1_out;
 370         int JPEG_in;
 371         int JPEG_out;
 372         int JPEG_0;
 373         int JPEG_1;
 374         int END_event_missed;
 375         int JPEG_missed;
 376         int JPEG_error;
 377         int num_errors;
 378         int JPEG_max_missed;
 379         int JPEG_min_missed;
 380
 381         u32 last_isr;
 382         unsigned long frame_num;
 383
 384         wait_queue_head_t test_q;
 385 };
 386
 387 static inline struct zoran *to_zoran(struct v4l2_device *v4l2_dev)
 388 {
 389         return container_of(v4l2_dev, struct zoran, v4l2_dev);
 390 }
 391
 392 /* There was something called _ALPHA_BUZ that used the PCI address instead of
 393  * the kernel iomapped address for btread/btwrite.  */
 394 #define btwrite(dat,adr)    writel((dat), zr->zr36057_mem+(adr))
 395 #define btread(adr)         readl(zr->zr36057_mem+(adr))
 396
 397 #define btand(dat,adr)      btwrite((dat) & btread(adr), adr)
 398 #define btor(dat,adr)       btwrite((dat) | btread(adr), adr)
 399 #define btaor(dat,mask,adr) btwrite((dat) | ((mask) & btread(adr)), adr)
 400
 401 #endif