[mirror_ubuntu-focal-kernel.git] / drivers / media / video / tda9875.c

/*
 * For the TDA9875 chip
 * (The TDA9875 is used on the Diamond DTV2000 french version
 * Other cards probably use these chips as well.)
 * This driver will not complain if used with any
 * other i2c device with the same address.
 *
 * Copyright (c) 2000 Guillaume Delvit based on Gerd Knorr source and
 * Eric Sandeen
 * Copyright (c) 2006 Mauro Carvalho Chehab <mchehab@infradead.org>
 * This code is placed under the terms of the GNU General Public License
 * Based on tda9855.c by Steve VanDeBogart (vandebo@uclink.berkeley.edu)
 * Which was based on tda8425.c by Greg Alexander (c) 1998
 *
 * OPTIONS:
 * debug   - set to 1 if you'd like to see debug messages
 *
 *  Revision: 0.1 - original version
 */

#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/string.h>
#include <linux/timer.h>
#include <linux/delay.h>
#include <linux/errno.h>
#include <linux/slab.h>
#include <linux/videodev.h>
#include <media/v4l2-common.h>
#include <linux/i2c.h>
#include <linux/init.h>

#include <media/i2c-addr.h>

static int debug; /* insmod parameter */
module_param(debug, int, S_IRUGO | S_IWUSR);
MODULE_LICENSE("GPL");

/* Addresses to scan */
static unsigned short normal_i2c[] =  {
    I2C_ADDR_TDA9875 >> 1,
    I2C_CLIENT_END
};

I2C_CLIENT_INSMOD;

/* This is a superset of the TDA9875 */
struct tda9875 {
	int rvol, lvol;
	int bass, treble;
	struct i2c_client c;
};

static struct i2c_driver driver;
static struct i2c_client client_template;

#define dprintk  if (debug) printk

/* The TDA9875 is made by Philips Semiconductor
 * http://www.semiconductors.philips.com
 * TDA9875: I2C-bus controlled DSP audio processor, FM demodulator
 *
 */

		/* subaddresses for TDA9875 */
#define TDA9875_MUT         0x12  /*General mute  (value --> 0b11001100*/
#define TDA9875_CFG         0x01  /* Config register (value --> 0b00000000 */
#define TDA9875_DACOS       0x13  /*DAC i/o select (ADC) 0b0000100*/
#define TDA9875_LOSR        0x16  /*Line output select regirter 0b0100 0001*/

#define TDA9875_CH1V        0x0c  /*Channel 1 volume (mute)*/
#define TDA9875_CH2V        0x0d  /*Channel 2 volume (mute)*/
#define TDA9875_SC1         0x14  /*SCART 1 in (mono)*/
#define TDA9875_SC2         0x15  /*SCART 2 in (mono)*/

#define TDA9875_ADCIS       0x17  /*ADC input select (mono) 0b0110 000*/
#define TDA9875_AER         0x19  /*Audio effect (AVL+Pseudo) 0b0000 0110*/
#define TDA9875_MCS         0x18  /*Main channel select (DAC) 0b0000100*/
#define TDA9875_MVL         0x1a  /* Main volume gauche */
#define TDA9875_MVR         0x1b  /* Main volume droite */
#define TDA9875_MBA         0x1d  /* Main Basse */
#define TDA9875_MTR         0x1e  /* Main treble */
#define TDA9875_ACS         0x1f  /* Auxilary channel select (FM) 0b0000000*/
#define TDA9875_AVL         0x20  /* Auxilary volume gauche */
#define TDA9875_AVR         0x21  /* Auxilary volume droite */
#define TDA9875_ABA         0x22  /* Auxilary Basse */
#define TDA9875_ATR         0x23  /* Auxilary treble */

#define TDA9875_MSR         0x02  /* Monitor select register */
#define TDA9875_C1MSB       0x03  /* Carrier 1 (FM) frequency register MSB */
#define TDA9875_C1MIB       0x04  /* Carrier 1 (FM) frequency register (16-8]b */
#define TDA9875_C1LSB       0x05  /* Carrier 1 (FM) frequency register LSB */
#define TDA9875_C2MSB       0x06  /* Carrier 2 (nicam) frequency register MSB */
#define TDA9875_C2MIB       0x07  /* Carrier 2 (nicam) frequency register (16-8]b */
#define TDA9875_C2LSB       0x08  /* Carrier 2 (nicam) frequency register LSB */
#define TDA9875_DCR         0x09  /* Demodulateur configuration regirter*/
#define TDA9875_DEEM        0x0a  /* FM de-emphasis regirter*/
#define TDA9875_FMAT        0x0b  /* FM Matrix regirter*/

/* values */
#define TDA9875_MUTE_ON	    0xff /* general mute */
#define TDA9875_MUTE_OFF    0xcc /* general no mute */


/* Begin code */

static int tda9875_write(struct i2c_client *client, int subaddr, unsigned char val)
{
	unsigned char buffer[2];
	dprintk("In tda9875_write\n");
	dprintk("Writing %d 0x%x\n", subaddr, val);
	buffer[0] = subaddr;
	buffer[1] = val;
	if (2 != i2c_master_send(client,buffer,2)) {
		printk(KERN_WARNING "tda9875: I/O error, trying (write %d 0x%x)\n",
		       subaddr, val);
		return -1;
	}
	return 0;
}


static int i2c_read_register(struct i2c_adapter *adap, int addr, int reg)
{
	unsigned char write[1];
	unsigned char read[1];
	struct i2c_msg msgs[2] = {
		{ addr, 0,        1, write },
		{ addr, I2C_M_RD, 1, read  }
	};
	write[0] = reg;

	if (2 != i2c_transfer(adap,msgs,2)) {
		printk(KERN_WARNING "tda9875: I/O error (read2)\n");
		return -1;
	}
	dprintk("tda9875: chip_read2: reg%d=0x%x\n",reg,read[0]);
	return read[0];
}

static void tda9875_set(struct i2c_client *client)
{
	struct tda9875 *tda = i2c_get_clientdata(client);
	unsigned char a;

	dprintk(KERN_DEBUG "tda9875_set(%04x,%04x,%04x,%04x)\n",
		tda->lvol,tda->rvol,tda->bass,tda->treble);


	a = tda->lvol & 0xff;
	tda9875_write(client, TDA9875_MVL, a);
	a =tda->rvol & 0xff;
	tda9875_write(client, TDA9875_MVR, a);
	a =tda->bass & 0xff;
	tda9875_write(client, TDA9875_MBA, a);
	a =tda->treble  & 0xff;
	tda9875_write(client, TDA9875_MTR, a);
}

static void do_tda9875_init(struct i2c_client *client)
{
	struct tda9875 *t = i2c_get_clientdata(client);
	dprintk("In tda9875_init\n");
	tda9875_write(client, TDA9875_CFG, 0xd0 ); /*reg de config 0 (reset)*/
	tda9875_write(client, TDA9875_MSR, 0x03 );    /* Monitor 0b00000XXX*/
	tda9875_write(client, TDA9875_C1MSB, 0x00 );  /*Car1(FM) MSB XMHz*/
	tda9875_write(client, TDA9875_C1MIB, 0x00 );  /*Car1(FM) MIB XMHz*/
	tda9875_write(client, TDA9875_C1LSB, 0x00 );  /*Car1(FM) LSB XMHz*/
	tda9875_write(client, TDA9875_C2MSB, 0x00 );  /*Car2(NICAM) MSB XMHz*/
	tda9875_write(client, TDA9875_C2MIB, 0x00 );  /*Car2(NICAM) MIB XMHz*/
	tda9875_write(client, TDA9875_C2LSB, 0x00 );  /*Car2(NICAM) LSB XMHz*/
	tda9875_write(client, TDA9875_DCR, 0x00 );    /*Demod config 0x00*/
	tda9875_write(client, TDA9875_DEEM, 0x44 );   /*DE-Emph 0b0100 0100*/
	tda9875_write(client, TDA9875_FMAT, 0x00 );   /*FM Matrix reg 0x00*/
	tda9875_write(client, TDA9875_SC1, 0x00 );    /* SCART 1 (SC1)*/
	tda9875_write(client, TDA9875_SC2, 0x01 );    /* SCART 2 (sc2)*/

	tda9875_write(client, TDA9875_CH1V, 0x10 );  /* Channel volume 1 mute*/
	tda9875_write(client, TDA9875_CH2V, 0x10 );  /* Channel volume 2 mute */
	tda9875_write(client, TDA9875_DACOS, 0x02 ); /* sig DAC i/o(in:nicam)*/
	tda9875_write(client, TDA9875_ADCIS, 0x6f ); /* sig ADC input(in:mono)*/
	tda9875_write(client, TDA9875_LOSR, 0x00 );  /* line out (in:mono)*/
	tda9875_write(client, TDA9875_AER, 0x00 );   /*06 Effect (AVL+PSEUDO) */
	tda9875_write(client, TDA9875_MCS, 0x44 );   /* Main ch select (DAC) */
	tda9875_write(client, TDA9875_MVL, 0x03 );   /* Vol Main left 10dB */
	tda9875_write(client, TDA9875_MVR, 0x03 );   /* Vol Main right 10dB*/
	tda9875_write(client, TDA9875_MBA, 0x00 );   /* Main Bass Main 0dB*/
	tda9875_write(client, TDA9875_MTR, 0x00 );   /* Main Treble Main 0dB*/
	tda9875_write(client, TDA9875_ACS, 0x44 );   /* Aux chan select (dac)*/
	tda9875_write(client, TDA9875_AVL, 0x00 );   /* Vol Aux left 0dB*/
	tda9875_write(client, TDA9875_AVR, 0x00 );   /* Vol Aux right 0dB*/
	tda9875_write(client, TDA9875_ABA, 0x00 );   /* Aux Bass Main 0dB*/
	tda9875_write(client, TDA9875_ATR, 0x00 );   /* Aux Aigus Main 0dB*/

	tda9875_write(client, TDA9875_MUT, 0xcc );   /* General mute  */

	t->lvol=t->rvol =0;  	/* 0dB */
	t->bass=0; 			/* 0dB */
	t->treble=0;  		/* 0dB */
	tda9875_set(client);

}


/* *********************** *
 * i2c interface functions *
 * *********************** */

static int tda9875_checkit(struct i2c_adapter *adap, int addr)
{
	int dic,rev;

	dic=i2c_read_register(adap,addr,254);
	rev=i2c_read_register(adap,addr,255);

	if(dic==0 || dic==2) { // tda9875 and tda9875A
		printk("tda9875: TDA9875%s Rev.%d detected at 0x%x\n",
		dic==0?"":"A", rev,addr<<1);
		return 1;
	}
	printk("tda9875: no such chip at 0x%x (dic=0x%x rev=0x%x)\n",addr<<1,dic,rev);
	return(0);
}

static int tda9875_attach(struct i2c_adapter *adap, int addr, int kind)
{
	struct tda9875 *t;
	struct i2c_client *client;
	dprintk("In tda9875_attach\n");

	t = kzalloc(sizeof *t,GFP_KERNEL);
	if (!t)
		return -ENOMEM;

	client = &t->c;
	memcpy(client,&client_template,sizeof(struct i2c_client));
	client->adapter = adap;
	client->addr = addr;
	i2c_set_clientdata(client, t);

	if(!tda9875_checkit(adap,addr)) {
		kfree(t);
		return 1;
	}

	do_tda9875_init(client);
	printk(KERN_INFO "tda9875: init\n");

	i2c_attach_client(client);
	return 0;
}

static int tda9875_probe(struct i2c_adapter *adap)
{
	if (adap->class & I2C_CLASS_TV_ANALOG)
		return i2c_probe(adap, &addr_data, tda9875_attach);
	return 0;
}

static int tda9875_detach(struct i2c_client *client)
{
	struct tda9875 *t  = i2c_get_clientdata(client);

	do_tda9875_init(client);
	i2c_detach_client(client);

	kfree(t);
	return 0;
}

static int tda9875_get_ctrl(struct i2c_client *client,
			    struct v4l2_control *ctrl)
{
	struct tda9875 *t = i2c_get_clientdata(client);

	switch (ctrl->id) {
	case V4L2_CID_AUDIO_VOLUME:
	{
		int left = (t->lvol+84)*606;
		int right = (t->rvol+84)*606;

		ctrl->value=max(left,right);
		return 0;
	}
	case V4L2_CID_AUDIO_BALANCE:
	{
		int left = (t->lvol+84)*606;
		int right = (t->rvol+84)*606;
		int volume = max(left,right);
		int balance = (32768*min(left,right))/
			      (volume ? volume : 1);
		ctrl->value=(left<right)?
			(65535-balance) : balance;
		return 0;
	}
	case V4L2_CID_AUDIO_BASS:
		ctrl->value = (t->bass+12)*2427;    /* min -12 max +15 */
		return 0;
	case V4L2_CID_AUDIO_TREBLE:
		ctrl->value = (t->treble+12)*2730;/* min -12 max +12 */
		return 0;
	}
	return -EINVAL;
}

static int tda9875_set_ctrl(struct i2c_client *client,
			    struct v4l2_control *ctrl)
{
	struct tda9875 *t = i2c_get_clientdata(client);
	int chvol=0, volume, balance, left, right;

	switch (ctrl->id) {
	case V4L2_CID_AUDIO_VOLUME:
		left = (t->lvol+84)*606;
		right = (t->rvol+84)*606;

		volume = max(left,right);
		balance = (32768*min(left,right))/
			      (volume ? volume : 1);
		balance =(left<right)?
			(65535-balance) : balance;

		volume = ctrl->value;

		chvol=1;
		break;
	case V4L2_CID_AUDIO_BALANCE:
		left = (t->lvol+84)*606;
		right = (t->rvol+84)*606;

		volume=max(left,right);

		balance = ctrl->value;

		chvol=1;
		break;
	case V4L2_CID_AUDIO_BASS:
		t->bass = ((ctrl->value/2400)-12) & 0xff;
		if (t->bass > 15)
			t->bass = 15;
		if (t->bass < -12)
			t->bass = -12 & 0xff;
		break;
	case V4L2_CID_AUDIO_TREBLE:
		t->treble = ((ctrl->value/2700)-12) & 0xff;
		if (t->treble > 12)
			t->treble = 12;
		if (t->treble < -12)
			t->treble = -12 & 0xff;
		break;
	default:
		return -EINVAL;
	}

	if (chvol) {
		left = (min(65536 - balance,32768) *
			volume) / 32768;
		right = (min(balance,32768) *
				volume) / 32768;
		t->lvol = ((left/606)-84) & 0xff;
		if (t->lvol > 24)
			t->lvol = 24;
		if (t->lvol < -84)
			t->lvol = -84 & 0xff;

		t->rvol = ((right/606)-84) & 0xff;
		if (t->rvol > 24)
			t->rvol = 24;
		if (t->rvol < -84)
			t->rvol = -84 & 0xff;
	}

//printk("tda9875 bal:%04x vol:%04x bass:%04x treble:%04x\n",va->balance,va->volume,va->bass,va->treble);

	tda9875_set(client);

	return 0;
}


static int tda9875_command(struct i2c_client *client,
				unsigned int cmd, void *arg)
{
	dprintk("In tda9875_command...\n");

	switch (cmd) {
	/* --- v4l ioctls --- */
	/* take care: bttv does userspace copying, we'll get a
	   kernel pointer here... */
	case VIDIOC_QUERYCTRL:
	{
		struct v4l2_queryctrl *qc = arg;

		switch (qc->id) {
			case V4L2_CID_AUDIO_VOLUME:
			case V4L2_CID_AUDIO_BASS:
			case V4L2_CID_AUDIO_TREBLE:
			default:
				return -EINVAL;
		}
		return v4l2_ctrl_query_fill_std(qc);
	}
	case VIDIOC_S_CTRL:
		return tda9875_set_ctrl(client, arg);

	case VIDIOC_G_CTRL:
		return tda9875_get_ctrl(client, arg);

	default: /* Not VIDEOCGAUDIO or VIDEOCSAUDIO */

		/* nothing */
		dprintk("Default\n");

	} /* end of (cmd) switch */

	return 0;
}


static struct i2c_driver driver = {
	.driver = {
		.name   = "tda9875",
	},
	.id             = I2C_DRIVERID_TDA9875,
	.attach_adapter = tda9875_probe,
	.detach_client  = tda9875_detach,
	.command        = tda9875_command,
};

static struct i2c_client client_template =
{
	.name      = "tda9875",
	.driver    = &driver,
};

static int __init tda9875_init(void)
{
	return i2c_add_driver(&driver);
}

static void __exit tda9875_fini(void)
{
	i2c_del_driver(&driver);
}

module_init(tda9875_init);
module_exit(tda9875_fini);

/*
 * Local variables:
 * c-basic-offset: 8
 * End:
 */
Commit	Line	Data
1da177e4 LT	1	/*
	2	* For the TDA9875 chip
	3	* (The TDA9875 is used on the Diamond DTV2000 french version
	4	* Other cards probably use these chips as well.)
	5	* This driver will not complain if used with any
	6	* other i2c device with the same address.
	7	*
	8	* Copyright (c) 2000 Guillaume Delvit based on Gerd Knorr source and
	9	* Eric Sandeen
5eba3571	10	* Copyright (c) 2006 Mauro Carvalho Chehab <mchehab@infradead.org>
1da177e4 LT	11	* This code is placed under the terms of the GNU General Public License
	12	* Based on tda9855.c by Steve VanDeBogart (vandebo@uclink.berkeley.edu)
	13	* Which was based on tda8425.c by Greg Alexander (c) 1998
	14	*
	15	* OPTIONS:
	16	* debug - set to 1 if you'd like to see debug messages
	17	*
	18	* Revision: 0.1 - original version
	19	*/
	20
	21	#include <linux/module.h>
	22	#include <linux/kernel.h>
1da177e4 LT	23	#include <linux/string.h>
	24	#include <linux/timer.h>
	25	#include <linux/delay.h>
	26	#include <linux/errno.h>
	27	#include <linux/slab.h>
	28	#include <linux/videodev.h>
5e87efa3	29	#include <media/v4l2-common.h>
1da177e4	30	#include <linux/i2c.h>
1da177e4 LT	31	#include <linux/init.h>
1da177e4 LT	32
fa3fcceb MCC	33	#include <media/i2c-addr.h>
fa3fcceb MCC	34
1da177e4 LT	35	static int debug; /* insmod parameter */
	36	module_param(debug, int, S_IRUGO \| S_IWUSR);
	37	MODULE_LICENSE("GPL");
	38
1da177e4 LT	39	/* Addresses to scan */
1da177e4 LT	40	static unsigned short normal_i2c[] = {
09df1c16	41	I2C_ADDR_TDA9875 >> 1,
1da177e4 LT	42	I2C_CLIENT_END
1da177e4 LT	43	};
f87086e3	44
1da177e4 LT	45	I2C_CLIENT_INSMOD;
	46
	47	/* This is a superset of the TDA9875 */
	48	struct tda9875 {
1da177e4 LT	49	int rvol, lvol;
	50	int bass, treble;
	51	struct i2c_client c;
	52	};
	53
	54	static struct i2c_driver driver;
	55	static struct i2c_client client_template;
	56
	57	#define dprintk if (debug) printk
	58
	59	/* The TDA9875 is made by Philips Semiconductor
	60	* http://www.semiconductors.philips.com
	61	* TDA9875: I2C-bus controlled DSP audio processor, FM demodulator
	62	*
	63	*/
	64
	65	/* subaddresses for TDA9875 */
	66	#define TDA9875_MUT 0x12 /General mute (value --> 0b11001100/
	67	#define TDA9875_CFG 0x01 /* Config register (value --> 0b00000000 */
	68	#define TDA9875_DACOS 0x13 /DAC i/o select (ADC) 0b0000100/
	69	#define TDA9875_LOSR 0x16 /Line output select regirter 0b0100 0001/
	70
	71	#define TDA9875_CH1V 0x0c /Channel 1 volume (mute)/
	72	#define TDA9875_CH2V 0x0d /Channel 2 volume (mute)/
	73	#define TDA9875_SC1 0x14 /SCART 1 in (mono)/
	74	#define TDA9875_SC2 0x15 /SCART 2 in (mono)/
	75
	76	#define TDA9875_ADCIS 0x17 /ADC input select (mono) 0b0110 000/
	77	#define TDA9875_AER 0x19 /Audio effect (AVL+Pseudo) 0b0000 0110/
	78	#define TDA9875_MCS 0x18 /Main channel select (DAC) 0b0000100/
	79	#define TDA9875_MVL 0x1a /* Main volume gauche */
	80	#define TDA9875_MVR 0x1b /* Main volume droite */
	81	#define TDA9875_MBA 0x1d /* Main Basse */
	82	#define TDA9875_MTR 0x1e /* Main treble */
	83	#define TDA9875_ACS 0x1f /* Auxilary channel select (FM) 0b0000000*/
	84	#define TDA9875_AVL 0x20 /* Auxilary volume gauche */
	85	#define TDA9875_AVR 0x21 /* Auxilary volume droite */
	86	#define TDA9875_ABA 0x22 /* Auxilary Basse */
	87	#define TDA9875_ATR 0x23 /* Auxilary treble */
	88
	89	#define TDA9875_MSR 0x02 /* Monitor select register */
	90	#define TDA9875_C1MSB 0x03 /* Carrier 1 (FM) frequency register MSB */
	91	#define TDA9875_C1MIB 0x04 /* Carrier 1 (FM) frequency register (16-8]b */
	92	#define TDA9875_C1LSB 0x05 /* Carrier 1 (FM) frequency register LSB */
	93	#define TDA9875_C2MSB 0x06 /* Carrier 2 (nicam) frequency register MSB */
	94	#define TDA9875_C2MIB 0x07 /* Carrier 2 (nicam) frequency register (16-8]b */
	95	#define TDA9875_C2LSB 0x08 /* Carrier 2 (nicam) frequency register LSB */
	96	#define TDA9875_DCR 0x09 /* Demodulateur configuration regirter*/
	97	#define TDA9875_DEEM 0x0a /* FM de-emphasis regirter*/
	98	#define TDA9875_FMAT 0x0b /* FM Matrix regirter*/
	99
	100	/* values */
	101	#define TDA9875_MUTE_ON 0xff /* general mute */
	102	#define TDA9875_MUTE_OFF 0xcc /* general no mute */
	103
	104
	105
	106	/* Begin code */
	107
	108	static int tda9875_write(struct i2c_client *client, int subaddr, unsigned char val)
	109	{
	110	unsigned char buffer[2];
	111	dprintk("In tda9875_write\n");
	112	dprintk("Writing %d 0x%x\n", subaddr, val);
113	buffer[0] = subaddr;
114	buffer[1] = val;
115	if (2 != i2c_master_send(client,buffer,2)) {
116	printk(KERN_WARNING "tda9875: I/O error, trying (write %d 0x%x)\n",
117	subaddr, val);
118	return -1;
119	}
120	return 0;
121	}
122
1da177e4 LT	123
	124	static int i2c_read_register(struct i2c_adapter *adap, int addr, int reg)
	125	{
4ac97914 MCC	126	unsigned char write[1];
	127	unsigned char read[1];
	128	struct i2c_msg msgs[2] = {
	129	{ addr, 0, 1, write },
	130	{ addr, I2C_M_RD, 1, read }
	131	};
	132	write[0] = reg;
	133
	134	if (2 != i2c_transfer(adap,msgs,2)) {
	135	printk(KERN_WARNING "tda9875: I/O error (read2)\n");
	136	return -1;
	137	}
	138	dprintk("tda9875: chip_read2: reg%d=0x%x\n",reg,read[0]);
	139	return read[0];
1da177e4 LT	140	}
	141
	142	static void tda9875_set(struct i2c_client *client)
	143	{
	144	struct tda9875 *tda = i2c_get_clientdata(client);
	145	unsigned char a;
	146
	147	dprintk(KERN_DEBUG "tda9875_set(%04x,%04x,%04x,%04x)\n",
	148	tda->lvol,tda->rvol,tda->bass,tda->treble);
	149
	150
	151	a = tda->lvol & 0xff;
	152	tda9875_write(client, TDA9875_MVL, a);
	153	a =tda->rvol & 0xff;
	154	tda9875_write(client, TDA9875_MVR, a);
	155	a =tda->bass & 0xff;
	156	tda9875_write(client, TDA9875_MBA, a);
	157	a =tda->treble & 0xff;
	158	tda9875_write(client, TDA9875_MTR, a);
	159	}
	160
	161	static void do_tda9875_init(struct i2c_client *client)
	162	{
	163	struct tda9875 *t = i2c_get_clientdata(client);
	164	dprintk("In tda9875_init\n");
	165	tda9875_write(client, TDA9875_CFG, 0xd0 ); /reg de config 0 (reset)/
657de3cd	166	tda9875_write(client, TDA9875_MSR, 0x03 ); /* Monitor 0b00000XXX*/
1da177e4 LT	167	tda9875_write(client, TDA9875_C1MSB, 0x00 ); /Car1(FM) MSB XMHz/
	168	tda9875_write(client, TDA9875_C1MIB, 0x00 ); /Car1(FM) MIB XMHz/
	169	tda9875_write(client, TDA9875_C1LSB, 0x00 ); /Car1(FM) LSB XMHz/
	170	tda9875_write(client, TDA9875_C2MSB, 0x00 ); /Car2(NICAM) MSB XMHz/
	171	tda9875_write(client, TDA9875_C2MIB, 0x00 ); /Car2(NICAM) MIB XMHz/
	172	tda9875_write(client, TDA9875_C2LSB, 0x00 ); /Car2(NICAM) LSB XMHz/
	173	tda9875_write(client, TDA9875_DCR, 0x00 ); /Demod config 0x00/
	174	tda9875_write(client, TDA9875_DEEM, 0x44 ); /DE-Emph 0b0100 0100/
	175	tda9875_write(client, TDA9875_FMAT, 0x00 ); /FM Matrix reg 0x00/
	176	tda9875_write(client, TDA9875_SC1, 0x00 ); /* SCART 1 (SC1)*/
	177	tda9875_write(client, TDA9875_SC2, 0x01 ); /* SCART 2 (sc2)*/
	178
	179	tda9875_write(client, TDA9875_CH1V, 0x10 ); /* Channel volume 1 mute*/
	180	tda9875_write(client, TDA9875_CH2V, 0x10 ); /* Channel volume 2 mute */
	181	tda9875_write(client, TDA9875_DACOS, 0x02 ); /* sig DAC i/o(in:nicam)*/
	182	tda9875_write(client, TDA9875_ADCIS, 0x6f ); /* sig ADC input(in:mono)*/
	183	tda9875_write(client, TDA9875_LOSR, 0x00 ); /* line out (in:mono)*/
4ac97914	184	tda9875_write(client, TDA9875_AER, 0x00 ); /06 Effect (AVL+PSEUDO) /
1da177e4 LT	185	tda9875_write(client, TDA9875_MCS, 0x44 ); /* Main ch select (DAC) */
	186	tda9875_write(client, TDA9875_MVL, 0x03 ); /* Vol Main left 10dB */
	187	tda9875_write(client, TDA9875_MVR, 0x03 ); /* Vol Main right 10dB*/
	188	tda9875_write(client, TDA9875_MBA, 0x00 ); /* Main Bass Main 0dB*/
	189	tda9875_write(client, TDA9875_MTR, 0x00 ); /* Main Treble Main 0dB*/
	190	tda9875_write(client, TDA9875_ACS, 0x44 ); /* Aux chan select (dac)*/
	191	tda9875_write(client, TDA9875_AVL, 0x00 ); /* Vol Aux left 0dB*/
	192	tda9875_write(client, TDA9875_AVR, 0x00 ); /* Vol Aux right 0dB*/
	193	tda9875_write(client, TDA9875_ABA, 0x00 ); /* Aux Bass Main 0dB*/
	194	tda9875_write(client, TDA9875_ATR, 0x00 ); /* Aux Aigus Main 0dB*/
	195
	196	tda9875_write(client, TDA9875_MUT, 0xcc ); /* General mute */
	197
1da177e4	198	t->lvol=t->rvol =0; /* 0dB */
4ac97914	199	t->bass=0; /* 0dB */
1da177e4 LT	200	t->treble=0; /* 0dB */
	201	tda9875_set(client);
	202
	203	}
	204
	205
	206	/* *********************** *
	207	* i2c interface functions *
	208	* *********************** */
	209
	210	static int tda9875_checkit(struct i2c_adapter *adap, int addr)
	211	{
	212	int dic,rev;
	213
	214	dic=i2c_read_register(adap,addr,254);
	215	rev=i2c_read_register(adap,addr,255);
	216
	217	if(dic==0 \|\| dic==2) { // tda9875 and tda9875A
	218	printk("tda9875: TDA9875%s Rev.%d detected at 0x%x\n",
	219	dic==0?"":"A", rev,addr<<1);
	220	return 1;
	221	}
	222	printk("tda9875: no such chip at 0x%x (dic=0x%x rev=0x%x)\n",addr<<1,dic,rev);
	223	return(0);
	224	}
	225
	226	static int tda9875_attach(struct i2c_adapter *adap, int addr, int kind)
	227	{
	228	struct tda9875 *t;
	229	struct i2c_client *client;
	230	dprintk("In tda9875_attach\n");
	231
7408187d	232	t = kzalloc(sizeof *t,GFP_KERNEL);
1da177e4 LT	233	if (!t)
1da177e4 LT	234	return -ENOMEM;
1da177e4 LT	235
1da177e4 LT	236	client = &t->c;
4ac97914 MCC	237	memcpy(client,&client_template,sizeof(struct i2c_client));
	238	client->adapter = adap;
	239	client->addr = addr;
1da177e4 LT	240	i2c_set_clientdata(client, t);
	241
	242	if(!tda9875_checkit(adap,addr)) {
	243	kfree(t);
	244	return 1;
	245	}
	246
	247	do_tda9875_init(client);
	248	printk(KERN_INFO "tda9875: init\n");
	249
	250	i2c_attach_client(client);
	251	return 0;
	252	}
	253
	254	static int tda9875_probe(struct i2c_adapter *adap)
	255	{
1da177e4 LT	256	if (adap->class & I2C_CLASS_TV_ANALOG)
1da177e4 LT	257	return i2c_probe(adap, &addr_data, tda9875_attach);
1da177e4 LT	258	return 0;
	259	}
	260
	261	static int tda9875_detach(struct i2c_client *client)
	262	{
	263	struct tda9875 *t = i2c_get_clientdata(client);
	264
	265	do_tda9875_init(client);
	266	i2c_detach_client(client);
	267
	268	kfree(t);
	269	return 0;
	270	}
	271
5eba3571 MCC	272	static int tda9875_get_ctrl(struct i2c_client *client,
5eba3571 MCC	273	struct v4l2_control *ctrl)
1da177e4 LT	274	{
	275	struct tda9875 *t = i2c_get_clientdata(client);
	276
5eba3571 MCC	277	switch (ctrl->id) {
	278	case V4L2_CID_AUDIO_VOLUME:
	279	{
	280	int left = (t->lvol+84)*606;
	281	int right = (t->rvol+84)*606;
1da177e4	282
5eba3571 MCC	283	ctrl->value=max(left,right);
	284	return 0;
	285	}
	286	case V4L2_CID_AUDIO_BALANCE:
1da177e4	287	{
5eba3571 MCC	288	int left = (t->lvol+84)*606;
	289	int right = (t->rvol+84)*606;
	290	int volume = max(left,right);
	291	int balance = (32768*min(left,right))/
	292	(volume ? volume : 1);
	293	ctrl->value=(left<right)?
	294	(65535-balance) : balance;
	295	return 0;
	296	}
	297	case V4L2_CID_AUDIO_BASS:
	298	ctrl->value = (t->bass+12)2427; / min -12 max +15 */
	299	return 0;
	300	case V4L2_CID_AUDIO_TREBLE:
	301	ctrl->value = (t->treble+12)2730;/ min -12 max +12 */
	302	return 0;
	303	}
	304	return -EINVAL;
	305	}
1da177e4	306
5eba3571 MCC	307	static int tda9875_set_ctrl(struct i2c_client *client,
	308	struct v4l2_control *ctrl)
	309	{
	310	struct tda9875 *t = i2c_get_clientdata(client);
	311	int chvol=0, volume, balance, left, right;
1da177e4	312
5eba3571 MCC	313	switch (ctrl->id) {
	314	case V4L2_CID_AUDIO_VOLUME:
	315	left = (t->lvol+84)*606;
	316	right = (t->rvol+84)*606;
	317
	318	volume = max(left,right);
	319	balance = (32768*min(left,right))/
	320	(volume ? volume : 1);
	321	balance =(left<right)?
	322	(65535-balance) : balance;
	323
	324	volume = ctrl->value;
1da177e4	325
5eba3571 MCC	326	chvol=1;
	327	break;
	328	case V4L2_CID_AUDIO_BALANCE:
1da177e4 LT	329	left = (t->lvol+84)*606;
1da177e4 LT	330	right = (t->rvol+84)*606;
5eba3571 MCC	331
	332	volume=max(left,right);
	333
	334	balance = ctrl->value;
	335
	336	chvol=1;
	337	break;
	338	case V4L2_CID_AUDIO_BASS:
	339	t->bass = ((ctrl->value/2400)-12) & 0xff;
	340	if (t->bass > 15)
	341	t->bass = 15;
	342	if (t->bass < -12)
	343	t->bass = -12 & 0xff;
	344	break;
	345	case V4L2_CID_AUDIO_TREBLE:
	346	t->treble = ((ctrl->value/2700)-12) & 0xff;
	347	if (t->treble > 12)
	348	t->treble = 12;
	349	if (t->treble < -12)
	350	t->treble = -12 & 0xff;
	351	break;
	352	default:
	353	return -EINVAL;
1da177e4 LT	354	}
1da177e4 LT	355
5eba3571 MCC	356	if (chvol) {
	357	left = (min(65536 - balance,32768) *
	358	volume) / 32768;
	359	right = (min(balance,32768) *
	360	volume) / 32768;
1da177e4 LT	361	t->lvol = ((left/606)-84) & 0xff;
1da177e4 LT	362	if (t->lvol > 24)
5eba3571	363	t->lvol = 24;
1da177e4	364	if (t->lvol < -84)
5eba3571	365	t->lvol = -84 & 0xff;
1da177e4 LT	366
	367	t->rvol = ((right/606)-84) & 0xff;
	368	if (t->rvol > 24)
5eba3571	369	t->rvol = 24;
1da177e4	370	if (t->rvol < -84)
5eba3571 MCC	371	t->rvol = -84 & 0xff;
5eba3571 MCC	372	}
1da177e4	373
5eba3571	374	//printk("tda9875 bal:%04x vol:%04x bass:%04x treble:%04x\n",va->balance,va->volume,va->bass,va->treble);
1da177e4	375
5eba3571	376	tda9875_set(client);
1da177e4	377
5eba3571 MCC	378	return 0;
5eba3571 MCC	379	}
1da177e4 LT	380
1da177e4 LT	381
5eba3571 MCC	382	static int tda9875_command(struct i2c_client *client,
	383	unsigned int cmd, void *arg)
	384	{
	385	dprintk("In tda9875_command...\n");
1da177e4	386
5eba3571 MCC	387	switch (cmd) {
	388	/* --- v4l ioctls --- */
	389	/* take care: bttv does userspace copying, we'll get a
	390	kernel pointer here... */
	391	case VIDIOC_QUERYCTRL:
	392	{
	393	struct v4l2_queryctrl *qc = arg;
	394
	395	switch (qc->id) {
	396	case V4L2_CID_AUDIO_VOLUME:
	397	case V4L2_CID_AUDIO_BASS:
	398	case V4L2_CID_AUDIO_TREBLE:
	399	default:
	400	return -EINVAL;
	401	}
	402	return v4l2_ctrl_query_fill_std(qc);
	403	}
	404	case VIDIOC_S_CTRL:
	405	return tda9875_set_ctrl(client, arg);
1da177e4	406
5eba3571 MCC	407	case VIDIOC_G_CTRL:
5eba3571 MCC	408	return tda9875_get_ctrl(client, arg);
1da177e4 LT	409
	410	default: /* Not VIDEOCGAUDIO or VIDEOCSAUDIO */
	411
	412	/* nothing */
	413	dprintk("Default\n");
	414
	415	} /* end of (cmd) switch */
	416
	417	return 0;
	418	}
	419
	420
	421	static struct i2c_driver driver = {
604f28e2	422	.driver = {
cab462f7	423	.name = "tda9875",
604f28e2	424	},
4ac97914	425	.id = I2C_DRIVERID_TDA9875,
1da177e4	426	.attach_adapter = tda9875_probe,
4ac97914 MCC	427	.detach_client = tda9875_detach,
4ac97914 MCC	428	.command = tda9875_command,
1da177e4 LT	429	};
	430
	431	static struct i2c_client client_template =
	432	{
4ac97914 MCC	433	.name = "tda9875",
4ac97914 MCC	434	.driver = &driver,
1da177e4 LT	435	};
	436
	437	static int __init tda9875_init(void)
	438	{
	439	return i2c_add_driver(&driver);
	440	}
	441
	442	static void __exit tda9875_fini(void)
	443	{
	444	i2c_del_driver(&driver);
	445	}
	446
	447	module_init(tda9875_init);
	448	module_exit(tda9875_fini);
	449
	450	/*
	451	* Local variables:
	452	* c-basic-offset: 8
	453	* End:
	454	*/
	455