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 #include <linux/videodev.h>
  29
  30 #ifndef O_NONCAP
  31 #define O_NONCAP        O_TRUNC
  32 #endif
  33
  34 #define MAX_GBUFFERS    2
  35 #define FBUF_SIZE       0x190000
  36
  37 #ifdef __KERNEL__
  38
  39 struct saa7146_window
  40 {
  41         int x, y;
  42         ushort width, height;
  43         ushort bpp, bpl;
  44         ushort swidth, sheight;
  45         short cropx, cropy;
  46         ushort cropwidth, cropheight;
  47         unsigned long vidadr;
  48         int color_fmt;
  49         ushort depth;
  50 };
  51
  52 /*  Per-open data for handling multiple opens on one device */
  53 struct device_open
  54 {
  55         int          isopen;
  56         int          noncapturing;
  57         struct saa7146  *dev;
  58 };
  59 #define MAX_OPENS 3
  60
  61 struct saa7146
  62 {
  63         struct video_device video_dev;
  64         struct video_picture picture;
  65         struct video_audio audio_dev;
  66         struct video_info vidinfo;
  67         int user;
  68         int cap;
  69         int capuser;
  70         int irqstate;           /* irq routine is state driven */
  71         int writemode;
  72         int playmode;
  73         unsigned int nr;
  74         unsigned long irq;          /* IRQ used by SAA7146 card */
  75         unsigned short id;
  76         unsigned char revision;
  77         unsigned char boardcfg[64];     /* 64 bytes of config from eeprom */
  78         unsigned long saa7146_adr;   /* bus address of IO mem from PCI BIOS */
  79         struct saa7146_window win;
  80         unsigned char __iomem *saa7146_mem; /* pointer to mapped IO memory */
  81         struct device_open open_data[MAX_OPENS];
  82 #define MAX_MARKS 16
  83         /* for a/v sync */
  84         int endmark[MAX_MARKS], endmarkhead, endmarktail;
  85         u32 *dmaRPS1, *pageRPS1, *dmaRPS2, *pageRPS2, *dmavid1, *dmavid2,
  86                 *dmavid3, *dmaa1in, *dmaa1out, *dmaa2in, *dmaa2out,
  87                 *pagedebi, *pagevid1, *pagevid2, *pagevid3, *pagea1in,
  88                 *pagea1out, *pagea2in, *pagea2out;
  89         wait_queue_head_t i2cq, debiq, audq, vidq;
  90         u8  *vidbuf, *audbuf, *osdbuf, *dmadebi;
  91         int audhead, vidhead, osdhead, audtail, vidtail, osdtail;
  92         spinlock_t lock;        /* the device lock */
  93 };
  94 #endif
  95
  96 #ifdef _ALPHA_SAA7146
  97 #define saawrite(dat,adr)    writel((dat), saa->saa7146_adr+(adr))
  98 #define saaread(adr)         readl(saa->saa7146_adr+(adr))
  99 #else
 100 #define saawrite(dat,adr)    writel((dat), saa->saa7146_mem+(adr))
 101 #define saaread(adr)         readl(saa->saa7146_mem+(adr))
 102 #endif
 103
 104 #define saaand(dat,adr)      saawrite((dat) & saaread(adr), adr)
 105 #define saaor(dat,adr)       saawrite((dat) | saaread(adr), adr)
 106 #define saaaor(dat,mask,adr) saawrite((dat) | ((mask) & saaread(adr)), adr)
 107
 108 /* bitmask of attached hardware found */
 109 #define SAA7146_UNKNOWN         0x00000000
 110 #define SAA7146_SAA7111         0x00000001
 111 #define SAA7146_SAA7121         0x00000002
 112 #define SAA7146_IBMMPEG         0x00000004
 113
 114 #endif