Subversion Repositories or1k

/*

    saa7146.h - definitions philips saa7146 based cards

    Copyright (C) 1999 Nathan Laredo (laredo@gnu.org)

    This program is free software; you can redistribute it and/or modify

    it under the terms of the GNU General Public License as published by

    the Free Software Foundation; either version 2 of the License, or

    (at your option) any later version.

    This program is distributed in the hope that it will be useful,

    but WITHOUT ANY WARRANTY; without even the implied warranty of

    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License

    along with this program; if not, write to the Free Software

    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.

*/

#ifndef __SAA7146__

#define __SAA7146__

#define SAA7146_VERSION_CODE 0x000101

#include <linux/types.h>

#include <linux/wait.h>

#include <linux/i2c-old.h>

#include <linux/videodev.h>

#ifndef O_NONCAP  

#define O_NONCAP        O_TRUNC

#endif

#define MAX_GBUFFERS    2

#define FBUF_SIZE       0x190000

#ifdef __KERNEL__

struct saa7146_window

{

        int x, y;

        ushort width, height;

        ushort bpp, bpl;

        ushort swidth, sheight;

        short cropx, cropy;

        ushort cropwidth, cropheight;

        unsigned long vidadr;

        int color_fmt;

        ushort depth;

};

/*  Per-open data for handling multiple opens on one device */

struct device_open

{

        int          isopen;

        int          noncapturing;

        struct saa7146  *dev;

};

#define MAX_OPENS 3

struct saa7146

{

        struct video_device video_dev;

        struct video_picture picture;

        struct video_audio audio_dev;

        struct video_info vidinfo;

        int user;

        int cap;

        int capuser;

        int irqstate;           /* irq routine is state driven */

        int writemode;

        int playmode;

        unsigned int nr;

        unsigned long irq;          /* IRQ used by SAA7146 card */

        unsigned short id;

        struct i2c_bus i2c;

        struct pci_dev *dev;

        unsigned char revision;

        unsigned char boardcfg[64];     /* 64 bytes of config from eeprom */

        unsigned long saa7146_adr;   /* bus address of IO mem from PCI BIOS */

        struct saa7146_window win;

        unsigned char *saa7146_mem; /* pointer to mapped IO memory */

        struct device_open open_data[MAX_OPENS];

#define MAX_MARKS 16

        /* for a/v sync */

        int endmark[MAX_MARKS], endmarkhead, endmarktail;

        u32 *dmaRPS1, *pageRPS1, *dmaRPS2, *pageRPS2, *dmavid1, *dmavid2,

                *dmavid3, *dmaa1in, *dmaa1out, *dmaa2in, *dmaa2out,

                *pagedebi, *pagevid1, *pagevid2, *pagevid3, *pagea1in,

                *pagea1out, *pagea2in, *pagea2out;

        wait_queue_head_t i2cq, debiq, audq, vidq;

        u8  *vidbuf, *audbuf, *osdbuf, *dmadebi;

        int audhead, vidhead, osdhead, audtail, vidtail, osdtail;

        spinlock_t lock;        /* the device lock */

};

#endif

#ifdef _ALPHA_SAA7146

#define saawrite(dat,adr)    writel((dat),(char *) (saa->saa7146_adr+(adr)))

#define saaread(adr)         readl(saa->saa7146_adr+(adr))

#else

#define saawrite(dat,adr)    writel((dat), (char *) (saa->saa7146_mem+(adr)))

#define saaread(adr)         readl(saa->saa7146_mem+(adr))

#endif

#define saaand(dat,adr)      saawrite((dat) & saaread(adr), adr)

#define saaor(dat,adr)       saawrite((dat) | saaread(adr), adr)

#define saaaor(dat,mask,adr) saawrite((dat) | ((mask) & saaread(adr)), adr)

/* bitmask of attached hardware found */

#define SAA7146_UNKNOWN         0x00000000

#define SAA7146_SAA7111         0x00000001

#define SAA7146_SAA7121         0x00000002

#define SAA7146_IBMMPEG         0x00000004

#endif