drivers/media/video/saa7146.h

   1 /*
   2     saa7146.h - definitions philips saa7146 based cards
   3     Copyright (C) 1999 Nathan Laredo (laredo@gnu.org)
   4
   5     This program is free software; you can redistribute it and/or modify
   6     it under the terms of the GNU General Public License as published by
   7     the Free Software Foundation; either version 2 of the License, or
   8     (at your option) any later version.
   9
  10     This program is distributed in the hope that it will be useful,
  11     but WITHOUT ANY WARRANTY; without even the implied warranty of
  12     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13     GNU General Public License for more details.
  14
  15     You should have received a copy of the GNU General Public License
  16     along with this program; if not, write to the Free Software
  17     Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  18 */
  19
  20 #ifndef __SAA7146__
  21 #define __SAA7146__
  22
  23 #define SAA7146_VERSION_CODE 0x000101
  24
  25 #include <linux/types.h>
  26 #include <linux/wait.h>
  27
  28 #ifndef O_NONCAP
  29 #define O_NONCAP        O_TRUNC
  30 #endif
  31
  32 #define MAX_GBUFFERS    2
  33 #define FBUF_SIZE       0x190000
  34
  35 #ifdef __KERNEL__
  36
  37 struct saa7146_window
  38 {
  39         int x, y;
  40         ushort width, height;
  41         ushort bpp, bpl;
  42         ushort swidth, sheight;
  43         short cropx, cropy;
  44         ushort cropwidth, cropheight;
  45         unsigned long vidadr;
  46         int color_fmt;
  47         ushort depth;
  48 };
  49
  50 /*  Per-open data for handling multiple opens on one device */
  51 struct device_open
  52 {
  53         int          isopen;
  54         int          noncapturing;
  55         struct saa7146  *dev;
  56 };
  57 #define MAX_OPENS 3
  58
  59 struct saa7146
  60 {
  61         struct video_device video_dev;
  62         struct video_picture picture;
  63         struct video_audio audio_dev;
  64         struct video_info vidinfo;
  65         int user;
  66         int cap;
  67         int capuser;
  68         int irqstate;           /* irq routine is state driven */
  69         int writemode;
  70         int playmode;
  71         unsigned int nr;
  72         unsigned long irq;          /* IRQ used by SAA7146 card */
  73         unsigned short id;
  74         unsigned char revision;
  75         unsigned char boardcfg[64];     /* 64 bytes of config from eeprom */
  76         unsigned long saa7146_adr;   /* bus address of IO mem from PCI BIOS */
  77         struct saa7146_window win;
  78         unsigned char __iomem *saa7146_mem; /* pointer to mapped IO memory */
  79         struct device_open open_data[MAX_OPENS];
  80 #define MAX_MARKS 16
  81         /* for a/v sync */
  82         int endmark[MAX_MARKS], endmarkhead, endmarktail;
  83         u32 *dmaRPS1, *pageRPS1, *dmaRPS2, *pageRPS2, *dmavid1, *dmavid2,
  84                 *dmavid3, *dmaa1in, *dmaa1out, *dmaa2in, *dmaa2out,
  85                 *pagedebi, *pagevid1, *pagevid2, *pagevid3, *pagea1in,
  86                 *pagea1out, *pagea2in, *pagea2out;
  87         wait_queue_head_t i2cq, debiq, audq, vidq;
  88         u8  *vidbuf, *audbuf, *osdbuf, *dmadebi;
  89         int audhead, vidhead, osdhead, audtail, vidtail, osdtail;
  90         spinlock_t lock;        /* the device lock */
  91 };
  92 #endif
  93
  94 #ifdef _ALPHA_SAA7146
  95 #define saawrite(dat,adr)    writel((dat), saa->saa7146_adr+(adr))
  96 #define saaread(adr)         readl(saa->saa7146_adr+(adr))
  97 #else
  98 #define saawrite(dat,adr)    writel((dat), saa->saa7146_mem+(adr))
  99 #define saaread(adr)         readl(saa->saa7146_mem+(adr))
 100 #endif
 101
 102 #define saaand(dat,adr)      saawrite((dat) & saaread(adr), adr)
 103 #define saaor(dat,adr)       saawrite((dat) | saaread(adr), adr)
 104 #define saaaor(dat,mask,adr) saawrite((dat) | ((mask) & saaread(adr)), adr)
 105
 106 /* bitmask of attached hardware found */
 107 #define SAA7146_UNKNOWN         0x00000000
 108 #define SAA7146_SAA7111         0x00000001
 109 #define SAA7146_SAA7121         0x00000002
 110 #define SAA7146_IBMMPEG         0x00000004
 111
 112 #endif