bttvp.h

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/*
    bttv - Bt848 frame grabber driver

    bttv's *private* header file  --  nobody else than bttv itself
    should ever include this file.

    Copyright (C) 1996,97 Ralph Metzler ([e-mail])
    (c) 1999,2000 Gerd Knorr <[e-mail]>

    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 _BTTVP_H_
#define _BTTVP_H_

#define BTTV_VERSION_CODE KERNEL_VERSION(0,7,50)


#include <linux/types.h>
#include <linux/wait.h>
#include <linux/i2c.h>
#include <linux/i2c-algo-bit.h>

#include "bt848.h"
#include "bttv.h"
#include "audiochip.h"

#ifdef __KERNEL__

/* ---------------------------------------------------------- */
/* bttv-driver.c                                              */

/* insmod options / kernel args */
extern unsigned int bttv_verbose;
extern unsigned int bttv_debug;
extern unsigned int bttv_gpio;
extern void bttv_gpio_tracking(struct bttv *btv, char *comment);

/* Anybody who uses more than four? */
#define BTTV_MAX 4
extern int bttv_num;			/* number of Bt848s in use */
extern struct bttv bttvs[BTTV_MAX];


#ifndef O_NONCAP  
#define O_NONCAP	O_TRUNC
#endif

#define MAX_GBUFFERS	64
#define RISCMEM_LEN	(32744*2)
#define VBI_MAXLINES    16
#define VBIBUF_SIZE     (2048*VBI_MAXLINES*2)

#define BTTV_MAX_FBUF	0x208000

struct bttv_window 
{
	int x, y;
	ushort width, height;
	ushort bpp, bpl;
	ushort swidth, sheight;
	unsigned long vidadr;
	ushort freq;
	int norm;
	int interlace;
	int color_fmt;
	ushort depth;
};

struct bttv_pll_info {
	unsigned int pll_ifreq;	   /* PLL input frequency 	 */
	unsigned int pll_ofreq;	   /* PLL output frequency       */
	unsigned int pll_crystal;  /* Crystal used for input     */
	unsigned int pll_current;  /* Currently programmed ofreq */
};

struct bttv_gbuf {
	int stat;
#define GBUFFER_UNUSED       0
#define GBUFFER_GRABBING     1
#define GBUFFER_DONE         2
#define GBUFFER_ERROR        3
	struct timeval tv;
	
	u16 width;
	u16 height;
	u16 fmt;
	
	u32 *risc;
	unsigned long ro;
	unsigned long re;
};

struct bttv {
	struct video_device video_dev;
	struct video_device radio_dev;
	struct video_device vbi_dev;
	struct video_picture picture;		/* Current picture params */
	struct video_audio audio_dev;		/* Current audio params */

	spinlock_t s_lock;
        struct semaphore lock;
	int user;
	int capuser;

	/* i2c */
	struct i2c_adapter         i2c_adap;
	struct i2c_algo_bit_data   i2c_algo;
	struct i2c_client          i2c_client;
	int                        i2c_state, i2c_rc;
	struct i2c_client         *i2c_clients[I2C_CLIENTS_MAX];

        int tuner_type;
        int channel;
        
        unsigned int nr;
	unsigned short id;
	struct pci_dev *dev;
	unsigned int irq;          /* IRQ used by Bt848 card */
	unsigned char revision;
	unsigned long bt848_adr;      /* bus address of IO mem returned by PCI BIOS */
	unsigned char *bt848_mem;   /* pointer to mapped IO memory */
	unsigned long busriscmem; 
	u32 *riscmem;
  
	unsigned char *vbibuf;
	struct bttv_window win;
	int fb_color_ctl;
	int type;            /* card type  */
	int cardid;
	int audio;           /* audio mode */
	int audio_chip;      /* set to one of the chips supported by bttv.c */
	int radio;

	u32 *risc_jmp;
	u32 *vbi_odd;
	u32 *vbi_even;
	u32 bus_vbi_even;
	u32 bus_vbi_odd;
        wait_queue_head_t vbiq;
	wait_queue_head_t capq;
	int vbip;

	u32 *risc_scr_odd;
	u32 *risc_scr_even;
	u32 risc_cap_odd;
	u32 risc_cap_even;
	int scr_on;
	int vbi_on;
	struct video_clip *cliprecs;

	struct bttv_gbuf *gbuf;
	int gqueue[MAX_GBUFFERS];
	int gq_in,gq_out,gq_grab,gq_start;
        char *fbuffer;

	struct bttv_pll_info pll;
	unsigned int Fsc;
	unsigned int field;
	unsigned int last_field; /* number of last grabbed field */
	int i2c_command;
	int triton1;

	int errors;
	int needs_restart;

	wait_queue_head_t gpioq;
	int shutdown;
};
#endif

#if defined(__powerpc__) /* big-endian */
extern __inline__ void io_st_le32(volatile unsigned *addr, unsigned val)
{
        __asm__ __volatile__ ("stwbrx %1,0,%2" : \
                            "=m" (*addr) : "r" (val), "r" (addr));
      __asm__ __volatile__ ("eieio" : : : "memory");
}

#define btwrite(dat,adr)  io_st_le32((unsigned *)(btv->bt848_mem+(adr)),(dat))
#define btread(adr)       ld_le32((unsigned *)(btv->bt848_mem+(adr)))
#else
#define btwrite(dat,adr)    writel((dat), (char *) (btv->bt848_mem+(adr)))
#define btread(adr)         readl(btv->bt848_mem+(adr))
#endif

#define btand(dat,adr)      btwrite((dat) & btread(adr), adr)
#define btor(dat,adr)       btwrite((dat) | btread(adr), adr)
#define btaor(dat,mask,adr) btwrite((dat) | ((mask) & btread(adr)), adr)

/* bttv ioctls */

#define BTTV_READEE		_IOW('v',  BASE_VIDIOCPRIVATE+0, char [256])
#define BTTV_WRITEE		_IOR('v',  BASE_VIDIOCPRIVATE+1, char [256])
#define BTTV_FIELDNR		_IOR('v' , BASE_VIDIOCPRIVATE+2, unsigned int)
#define BTTV_PLLSET		_IOW('v' , BASE_VIDIOCPRIVATE+3, struct bttv_pll_info)
#define BTTV_BURST_ON      	_IOR('v' , BASE_VIDIOCPRIVATE+4, int)
#define BTTV_BURST_OFF     	_IOR('v' , BASE_VIDIOCPRIVATE+5, int)
#define BTTV_VERSION  	        _IOR('v' , BASE_VIDIOCPRIVATE+6, int)
#define BTTV_PICNR		_IOR('v' , BASE_VIDIOCPRIVATE+7, int)
#define BTTV_VBISIZE            _IOR('v' , BASE_VIDIOCPRIVATE+8, int)

#define TDA9850            0x01
#define TDA9840            0x02
#define TDA8425            0x03
#define TEA6300            0x04

#endif /* _BTTVP_H_ */

/*
 * Local variables:
 * c-basic-offset: 8
 * End:
 */