LXR linux/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
  37struct 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 */
  51struct device_open
  52{
  53        int          isopen;
  54        int          noncapturing;
  55        struct saa7146  *dev;
  56};
  57#define MAX_OPENS 3
  58
  59struct 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
 113