path: root/drivers/media/video/mxb.c

/*
    mxb - v4l2 driver for the Multimedia eXtension Board
    
    Copyright (C) 1998-2003 Michael Hunold <michael@mihu.de>

    Visit http://www.mihu.de/linux/saa7146/mxb/
    for further details about this card.
    
    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.
*/

#define DEBUG_VARIABLE debug

#include <media/saa7146_vv.h>
#include <media/tuner.h>
#include <linux/video_decoder.h>

#include "mxb.h"
#include "tea6415c.h"
#include "tea6420.h"
#include "tda9840.h"

#define I2C_SAA7111 0x24

#define MXB_BOARD_CAN_DO_VBI(dev)   (dev->revision != 0) 

/* global variable */
static int mxb_num = 0;

/* initial frequence the tuner will be tuned to. 
   in verden (lower saxony, germany) 4148 is a
   channel called "phoenix" */
static int freq = 4148;
module_param(freq, int, 0644);
MODULE_PARM_DESC(freq, "initial frequency the tuner will be tuned to while setup");

static int debug = 0;
module_param(debug, int, 0644);
MODULE_PARM_DESC(debug, "Turn on/off device debugging (default:off).");

#define MXB_INPUTS 4
enum { TUNER, AUX1, AUX3, AUX3_YC };

static struct v4l2_input mxb_inputs[MXB_INPUTS] = {
	{ TUNER,	"Tuner",		V4L2_INPUT_TYPE_TUNER,	1, 0, V4L2_STD_PAL_BG|V4L2_STD_NTSC_M, 0 }, 
	{ AUX1,		"AUX1",			V4L2_INPUT_TYPE_CAMERA,	2, 0, V4L2_STD_PAL_BG|V4L2_STD_NTSC_M, 0 },
	{ AUX3,		"AUX3 Composite",	V4L2_INPUT_TYPE_CAMERA,	4, 0, V4L2_STD_PAL_BG|V4L2_STD_NTSC_M, 0 },
	{ AUX3_YC,	"AUX3 S-Video",		V4L2_INPUT_TYPE_CAMERA,	4, 0, V4L2_STD_PAL_BG|V4L2_STD_NTSC_M, 0 },
};

/* this array holds the information, which port of the saa7146 each
   input actually uses. the mxb uses port 0 for every input */
static struct {
	int hps_source;
	int hps_sync;
} input_port_selection[MXB_INPUTS] = { 	
	{ SAA7146_HPS_SOURCE_PORT_A, SAA7146_HPS_SYNC_PORT_A },
	{ SAA7146_HPS_SOURCE_PORT_A, SAA7146_HPS_SYNC_PORT_A },
	{ SAA7146_HPS_SOURCE_PORT_A, SAA7146_HPS_SYNC_PORT_A },
	{ SAA7146_HPS_SOURCE_PORT_A, SAA7146_HPS_SYNC_PORT_A },
};

/* this array holds the information of the audio source (mxb_audios),
   which has to be switched corresponding to the video source (mxb_channels) */
static int video_audio_connect[MXB_INPUTS] =
	{ 0, 1, 3, 3 };

/* these are the necessary input-output-pins for bringing one audio source
(see above) to the CD-output */
static struct tea6420_multiplex TEA6420_cd[MXB_AUDIOS+1][2] =
		{ 
		{{1,1,0},{1,1,0}},	/* Tuner */
		{{5,1,0},{6,1,0}},	/* AUX 1 */
		{{4,1,0},{6,1,0}},	/* AUX 2 */
		{{3,1,0},{6,1,0}},	/* AUX 3 */
		{{1,1,0},{3,1,0}},	/* Radio */
		{{1,1,0},{2,1,0}},	/* CD-Rom */
		{{6,1,0},{6,1,0}}	/* Mute */
		};

/* these are the necessary input-output-pins for bringing one audio source
(see above) to the line-output */
static struct tea6420_multiplex TEA6420_line[MXB_AUDIOS+1][2] =
		{
		{{2,3,0},{1,2,0}},
		{{5,3,0},{6,2,0}},
		{{4,3,0},{6,2,0}},
		{{3,3,0},{6,2,0}},
		{{2,3,0},{3,2,0}},
		{{2,3,0},{2,2,0}},
		{{6,3,0},{6,2,0}}	/* Mute */
		};

#define MAXCONTROLS	1
static struct v4l2_queryctrl mxb_controls[] = {
	{ V4L2_CID_AUDIO_MUTE, V4L2_CTRL_TYPE_BOOLEAN, "Mute", 0, 1, 1, 0, 0 },
};

static struct saa7146_extension_ioctls ioctls[] = {
	{ VIDIOC_ENUMINPUT, 	SAA7146_EXCLUSIVE },
	{ VIDIOC_G_INPUT,	SAA7146_EXCLUSIVE },
	{ VIDIOC_S_INPUT,	SAA7146_EXCLUSIVE },
	{ VIDIOC_QUERYCTRL, 	SAA7146_BEFORE },
	{ VIDIOC_G_CTRL,	SAA7146_BEFORE },
	{ VIDIOC_S_CTRL,	SAA7146_BEFORE },
	{ VIDIOC_G_TUNER, 	SAA7146_EXCLUSIVE },
	{ VIDIOC_S_TUNER, 	SAA7146_EXCLUSIVE },
	{ VIDIOC_G_FREQUENCY,	SAA7146_EXCLUSIVE },
	{ VIDIOC_S_FREQUENCY, 	SAA7146_EXCLUSIVE },
	{ VIDIOC_G_AUDIO,