/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