[mirror_ubuntu-hirsute-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/i2c.h>
#include <linux/videodev2.h>
#include <media/v4l2-device.h>
#include <media/v4l2-i2c-drv.h>
#include <media/i2c-addr.h>

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


/* This is a superset of the TDA9875 */
struct tda9875 {
	struct v4l2_subdev sd;
	int rvol, lvol;
	int bass, treble;
};

static inline struct tda9875 *to_state(struct v4l2_subdev *sd)
{
	return container_of(sd, struct tda9875, sd);
}

#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 v4l2_subdev *sd, int subaddr, unsigned char val)
{
	struct i2c_client *client = v4l2_get_subdevdata(sd);
	unsigned char buffer[2];

	v4l2_dbg(1, debug, sd, "Writing %d 0x%x\n", subaddr, val);
	buffer[0] = subaddr;
	buffer[1] = val;
	if (2 != i2c_master_send(client, buffer, 2)) {
		v4l2_warn(sd, "I/O error, trying (write %d 0x%x)\n",
		       subaddr, val);
		return -1;
	}
	return 0;
}


static int i2c_read_register(struct i2c_client *client, 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(client->adapter, msgs, 2)) {
		v4l_warn(client, "I/O error (read2)\n");
		return -1;
	}
	v4l_dbg(1, debug, client, "chip_read2: reg%d=0x%x\n", reg, read[0]);
	return read[0];
}

static void tda9875_set(struct v4l2_subdev *sd)
{
	struct tda9875 *tda = to_state(sd);
	unsigned char a;

	v4l2_dbg(1, debug, sd, "tda9875_set(%04x,%04x,%04x,%04x)\n",
		tda->lvol, tda->rvol, tda->bass, tda->treble);

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

static void do_tda9875_init(struct v4l2_subdev *sd)
{
	struct tda9875 *t = to_state(sd);

	v4l2_dbg(1, debug, sd, "In tda9875_init\n");
	tda9875_write(sd, TDA9875_CFG, 0xd0); /*reg de config 0 (reset)*/
	tda9875_write(sd, TDA9875_MSR, 0x03);    /* Monitor 0b00000XXX*/
	tda9875_write(sd, TDA9875_C1MSB, 0x00);  /*Car1(FM) MSB XMHz*/
	tda9875_write(sd, TDA9875_C1MIB, 0x00);  /*Car1(FM) MIB XMHz*/
	tda9875_write(sd, TDA9875_C1LSB, 0x00);  /*Car1(FM) LSB XMHz*/
	tda9875_write(sd, TDA9875_C2MSB, 0x00);  /*Car2(NICAM) MSB XMHz*/
	tda9875_write(sd, TDA9875_C2MIB, 0x00);  /*Car2(NICAM) MIB XMHz*/
	tda9875_write(sd, TDA9875_C2LSB, 0x00);  /*Car2(NICAM) LSB XMHz*/
	tda9875_write(sd, TDA9875_DCR, 0x00);    /*Demod config 0x00*/
	tda9875_write(sd, TDA9875_DEEM, 0x44);   /*DE-Emph 0b0100 0100*/
	tda9875_write(sd, TDA9875_FMAT, 0x00);   /*FM Matrix reg 0x00*/
	tda9875_write(sd, TDA9875_SC1, 0x00);    /* SCART 1 (SC1)*/
	tda9875_write(sd, TDA9875_SC2, 0x01);    /* SCART 2 (sc2)*/

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

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

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


static int tda9875_g_ctrl(struct v4l2_subdev *sd, struct v4l2_control *ctrl)
{
	struct tda9875 *t = to_state(sd);

	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_s_ctrl(struct v4l2_subdev *sd, struct v4l2_control *ctrl)
{
	struct tda9875 *t = to_state(sd);
	int chvol = 0, volume = 0, balance = 0, 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;
	}

	tda9875_set(sd);
	return 0;
}

static int tda9875_queryctrl(struct v4l2_subdev *sd, struct v4l2_queryctrl *qc)
{
	switch (qc->id) {
	case V4L2_CID_AUDIO_VOLUME:
		return v4l2_ctrl_query_fill(qc, 0, 65535, 65535 / 100, 58880);
	case V4L2_CID_AUDIO_BASS:
	case V4L2_CID_AUDIO_TREBLE:
		return v4l2_ctrl_query_fill(qc, 0, 65535, 65535 / 100, 32768);
	}
	return -EINVAL;
}

/* ----------------------------------------------------------------------- */

static const struct v4l2_subdev_core_ops tda9875_core_ops = {
	.queryctrl = tda9875_queryctrl,
	.g_ctrl = tda9875_g_ctrl,
	.s_ctrl = tda9875_s_ctrl,
};

static const struct v4l2_subdev_ops tda9875_ops = {
	.core = &tda9875_core_ops,
};

/* ----------------------------------------------------------------------- */


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

static int tda9875_checkit(struct i2c_client *client, int addr)
{
	int dic, rev;

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

	if (dic == 0 || dic == 2) { /* tda9875 and tda9875A */
		v4l_info(client, "tda9875%s rev. %d detected at 0x%02x\n",
			dic == 0 ? "" : "A", rev, addr << 1);
		return 1;
	}
	v4l_info(client, "no such chip at 0x%02x (dic=0x%x rev=0x%x)\n",
			addr << 1, dic, rev);
	return 0;
}

static int tda9875_probe(struct i2c_client *client,
			const struct i2c_device_id *id)
{
	struct tda9875 *t;
	struct v4l2_subdev *sd;

	v4l_info(client, "chip found @ 0x%02x (%s)\n",
			client->addr << 1, client->adapter->name);

	if (!tda9875_checkit(client, client->addr))
		return -ENODEV;

	t = kzalloc(sizeof(*t), GFP_KERNEL);
	if (!t)
		return -ENOMEM;
	sd = &t->sd;
	v4l2_i2c_subdev_init(sd, client, &tda9875_ops);

	do_tda9875_init(sd);
	return 0;
}

static int tda9875_remove(struct i2c_client *client)
{
	struct v4l2_subdev *sd = i2c_get_clientdata(client);

	do_tda9875_init(sd);
	v4l2_device_unregister_subdev(sd);
	kfree(to_state(sd));
	return 0;
}

static const struct i2c_device_id tda9875_id[] = {
	{ "tda9875", 0 },
	{ }
};
MODULE_DEVICE_TABLE(i2c, tda9875_id);

static struct v4l2_i2c_driver_data v4l2_i2c_data = {
	.name = "tda9875",
	.probe = tda9875_probe,
	.remove = tda9875_remove,
	.id_table = tda9875_id,
};
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>
1da177e4	28	#include <linux/i2c.h>
12f91a3f HV	29	#include <linux/videodev2.h>
12f91a3f HV	30	#include <media/v4l2-device.h>
a6138913	31	#include <media/v4l2-i2c-drv.h>
fa3fcceb MCC	32	#include <media/i2c-addr.h>
fa3fcceb MCC	33
1da177e4 LT	34	static int debug; /* insmod parameter */
	35	module_param(debug, int, S_IRUGO \| S_IWUSR);
	36	MODULE_LICENSE("GPL");
	37
1da177e4 LT	38
	39	/* This is a superset of the TDA9875 */
	40	struct tda9875 {
12f91a3f	41	struct v4l2_subdev sd;
1da177e4 LT	42	int rvol, lvol;
1da177e4 LT	43	int bass, treble;
1da177e4 LT	44	};
1da177e4 LT	45
12f91a3f HV	46	static inline struct tda9875 to_state(struct v4l2_subdev sd)
	47	{
	48	return container_of(sd, struct tda9875, sd);
	49	}
1da177e4 LT	50
	51	#define dprintk if (debug) printk
	52
	53	/* The TDA9875 is made by Philips Semiconductor
	54	* http://www.semiconductors.philips.com
	55	* TDA9875: I2C-bus controlled DSP audio processor, FM demodulator
	56	*
	57	*/
	58
	59	/* subaddresses for TDA9875 */
	60	#define TDA9875_MUT 0x12 /General mute (value --> 0b11001100/
	61	#define TDA9875_CFG 0x01 /* Config register (value --> 0b00000000 */
	62	#define TDA9875_DACOS 0x13 /DAC i/o select (ADC) 0b0000100/
	63	#define TDA9875_LOSR 0x16 /Line output select regirter 0b0100 0001/
	64
	65	#define TDA9875_CH1V 0x0c /Channel 1 volume (mute)/
	66	#define TDA9875_CH2V 0x0d /Channel 2 volume (mute)/
	67	#define TDA9875_SC1 0x14 /SCART 1 in (mono)/
	68	#define TDA9875_SC2 0x15 /SCART 2 in (mono)/
	69
	70	#define TDA9875_ADCIS 0x17 /ADC input select (mono) 0b0110 000/
	71	#define TDA9875_AER 0x19 /Audio effect (AVL+Pseudo) 0b0000 0110/
	72	#define TDA9875_MCS 0x18 /Main channel select (DAC) 0b0000100/
	73	#define TDA9875_MVL 0x1a /* Main volume gauche */
	74	#define TDA9875_MVR 0x1b /* Main volume droite */
	75	#define TDA9875_MBA 0x1d /* Main Basse */
	76	#define TDA9875_MTR 0x1e /* Main treble */
	77	#define TDA9875_ACS 0x1f /* Auxilary channel select (FM) 0b0000000*/
	78	#define TDA9875_AVL 0x20 /* Auxilary volume gauche */
	79	#define TDA9875_AVR 0x21 /* Auxilary volume droite */
	80	#define TDA9875_ABA 0x22 /* Auxilary Basse */
	81	#define TDA9875_ATR 0x23 /* Auxilary treble */
	82
	83	#define TDA9875_MSR 0x02 /* Monitor select register */
	84	#define TDA9875_C1MSB 0x03 /* Carrier 1 (FM) frequency register MSB */
	85	#define TDA9875_C1MIB 0x04 /* Carrier 1 (FM) frequency register (16-8]b */
	86	#define TDA9875_C1LSB 0x05 /* Carrier 1 (FM) frequency register LSB */
	87	#define TDA9875_C2MSB 0x06 /* Carrier 2 (nicam) frequency register MSB */
	88	#define TDA9875_C2MIB 0x07 /* Carrier 2 (nicam) frequency register (16-8]b */
	89	#define TDA9875_C2LSB 0x08 /* Carrier 2 (nicam) frequency register LSB */
	90	#define TDA9875_DCR 0x09 /* Demodulateur configuration regirter*/
	91	#define TDA9875_DEEM 0x0a /* FM de-emphasis regirter*/
	92	#define TDA9875_FMAT 0x0b /* FM Matrix regirter*/
	93
	94	/* values */
	95	#define TDA9875_MUTE_ON 0xff /* general mute */
	96	#define TDA9875_MUTE_OFF 0xcc /* general no mute */
	97
	98
	99
	100	/* Begin code */
	101
12f91a3f	102	static int tda9875_write(struct v4l2_subdev *sd, int subaddr, unsigned char val)
1da177e4	103	{
12f91a3f	104	struct i2c_client *client = v4l2_get_subdevdata(sd);
1da177e4	105	unsigned char buffer[2];
12f91a3f HV	106
12f91a3f HV	107	v4l2_dbg(1, debug, sd, "Writing %d 0x%x\n", subaddr, val);
1da177e4 LT	108	buffer[0] = subaddr;
1da177e4 LT	109	buffer[1] = val;
12f91a3f HV	110	if (2 != i2c_master_send(client, buffer, 2)) {
12f91a3f HV	111	v4l2_warn(sd, "I/O error, trying (write %d 0x%x)\n",
1da177e4 LT	112	subaddr, val);
	113	return -1;
	114	}
	115	return 0;
	116	}
	117
1da177e4	118
12f91a3f	119	static int i2c_read_register(struct i2c_client *client, int addr, int reg)
1da177e4	120	{
4ac97914 MCC	121	unsigned char write[1];
	122	unsigned char read[1];
	123	struct i2c_msg msgs[2] = {
	124	{ addr, 0, 1, write },
	125	{ addr, I2C_M_RD, 1, read }
	126	};
12f91a3f	127
4ac97914 MCC	128	write[0] = reg;
4ac97914 MCC	129
12f91a3f HV	130	if (2 != i2c_transfer(client->adapter, msgs, 2)) {
12f91a3f HV	131	v4l_warn(client, "I/O error (read2)\n");
4ac97914 MCC	132	return -1;
4ac97914 MCC	133	}
12f91a3f	134	v4l_dbg(1, debug, client, "chip_read2: reg%d=0x%x\n", reg, read[0]);
4ac97914	135	return read[0];
1da177e4 LT	136	}
1da177e4 LT	137
12f91a3f	138	static void tda9875_set(struct v4l2_subdev *sd)
1da177e4	139	{
12f91a3f	140	struct tda9875 *tda = to_state(sd);
1da177e4 LT	141	unsigned char a;
1da177e4 LT	142
12f91a3f HV	143	v4l2_dbg(1, debug, sd, "tda9875_set(%04x,%04x,%04x,%04x)\n",
12f91a3f HV	144	tda->lvol, tda->rvol, tda->bass, tda->treble);
1da177e4 LT	145
1da177e4 LT	146	a = tda->lvol & 0xff;
12f91a3f	147	tda9875_write(sd, TDA9875_MVL, a);
1da177e4	148	a =tda->rvol & 0xff;
12f91a3f	149	tda9875_write(sd, TDA9875_MVR, a);
1da177e4	150	a =tda->bass & 0xff;
12f91a3f	151	tda9875_write(sd, TDA9875_MBA, a);
1da177e4	152	a =tda->treble & 0xff;
12f91a3f	153	tda9875_write(sd, TDA9875_MTR, a);
1da177e4 LT	154	}
1da177e4 LT	155
12f91a3f	156	static void do_tda9875_init(struct v4l2_subdev *sd)
1da177e4	157	{
12f91a3f HV	158	struct tda9875 *t = to_state(sd);
	159
	160	v4l2_dbg(1, debug, sd, "In tda9875_init\n");
	161	tda9875_write(sd, TDA9875_CFG, 0xd0); /reg de config 0 (reset)/
	162	tda9875_write(sd, TDA9875_MSR, 0x03); /* Monitor 0b00000XXX*/
	163	tda9875_write(sd, TDA9875_C1MSB, 0x00); /Car1(FM) MSB XMHz/
	164	tda9875_write(sd, TDA9875_C1MIB, 0x00); /Car1(FM) MIB XMHz/
	165	tda9875_write(sd, TDA9875_C1LSB, 0x00); /Car1(FM) LSB XMHz/
	166	tda9875_write(sd, TDA9875_C2MSB, 0x00); /Car2(NICAM) MSB XMHz/
	167	tda9875_write(sd, TDA9875_C2MIB, 0x00); /Car2(NICAM) MIB XMHz/
	168	tda9875_write(sd, TDA9875_C2LSB, 0x00); /Car2(NICAM) LSB XMHz/
	169	tda9875_write(sd, TDA9875_DCR, 0x00); /Demod config 0x00/
	170	tda9875_write(sd, TDA9875_DEEM, 0x44); /DE-Emph 0b0100 0100/
	171	tda9875_write(sd, TDA9875_FMAT, 0x00); /FM Matrix reg 0x00/
	172	tda9875_write(sd, TDA9875_SC1, 0x00); /* SCART 1 (SC1)*/
	173	tda9875_write(sd, TDA9875_SC2, 0x01); /* SCART 2 (sc2)*/
	174
	175	tda9875_write(sd, TDA9875_CH1V, 0x10); /* Channel volume 1 mute*/
	176	tda9875_write(sd, TDA9875_CH2V, 0x10); /* Channel volume 2 mute */
	177	tda9875_write(sd, TDA9875_DACOS, 0x02); /* sig DAC i/o(in:nicam)*/
	178	tda9875_write(sd, TDA9875_ADCIS, 0x6f); /* sig ADC input(in:mono)*/
	179	tda9875_write(sd, TDA9875_LOSR, 0x00); /* line out (in:mono)*/
	180	tda9875_write(sd, TDA9875_AER, 0x00); /06 Effect (AVL+PSEUDO) /
	181	tda9875_write(sd, TDA9875_MCS, 0x44); /* Main ch select (DAC) */
	182	tda9875_write(sd, TDA9875_MVL, 0x03); /* Vol Main left 10dB */
	183	tda9875_write(sd, TDA9875_MVR, 0x03); /* Vol Main right 10dB*/
	184	tda9875_write(sd, TDA9875_MBA, 0x00); /* Main Bass Main 0dB*/
	185	tda9875_write(sd, TDA9875_MTR, 0x00); /* Main Treble Main 0dB*/
	186	tda9875_write(sd, TDA9875_ACS, 0x44); /* Aux chan select (dac)*/
	187	tda9875_write(sd, TDA9875_AVL, 0x00); /* Vol Aux left 0dB*/
	188	tda9875_write(sd, TDA9875_AVR, 0x00); /* Vol Aux right 0dB*/
	189	tda9875_write(sd, TDA9875_ABA, 0x00); /* Aux Bass Main 0dB*/
	190	tda9875_write(sd, TDA9875_ATR, 0x00); /* Aux Aigus Main 0dB*/
	191
	192	tda9875_write(sd, TDA9875_MUT, 0xcc); /* General mute */
	193
	194	t->lvol = t->rvol = 0; /* 0dB */
	195	t->bass = 0; /* 0dB */
	196	t->treble = 0; /* 0dB */
	197	tda9875_set(sd);
1da177e4 LT	198	}
	199
	200
12f91a3f	201	static int tda9875_g_ctrl(struct v4l2_subdev sd, struct v4l2_control ctrl)
1da177e4	202	{
12f91a3f	203	struct tda9875 *t = to_state(sd);
1da177e4	204
5eba3571 MCC	205	switch (ctrl->id) {
	206	case V4L2_CID_AUDIO_VOLUME:
	207	{
	208	int left = (t->lvol+84)*606;
	209	int right = (t->rvol+84)*606;
1da177e4	210
5eba3571 MCC	211	ctrl->value=max(left,right);
	212	return 0;
	213	}
	214	case V4L2_CID_AUDIO_BALANCE:
1da177e4	215	{
5eba3571 MCC	216	int left = (t->lvol+84)*606;
	217	int right = (t->rvol+84)*606;
	218	int volume = max(left,right);
	219	int balance = (32768*min(left,right))/
	220	(volume ? volume : 1);
	221	ctrl->value=(left<right)?
	222	(65535-balance) : balance;
	223	return 0;
	224	}
	225	case V4L2_CID_AUDIO_BASS:
	226	ctrl->value = (t->bass+12)2427; / min -12 max +15 */
	227	return 0;
	228	case V4L2_CID_AUDIO_TREBLE:
	229	ctrl->value = (t->treble+12)2730;/ min -12 max +12 */
	230	return 0;
	231	}
	232	return -EINVAL;
	233	}
1da177e4	234
12f91a3f	235	static int tda9875_s_ctrl(struct v4l2_subdev sd, struct v4l2_control ctrl)
5eba3571	236	{
12f91a3f	237	struct tda9875 *t = to_state(sd);
cf8e193a	238	int chvol = 0, volume = 0, balance = 0, left, right;
1da177e4	239
5eba3571 MCC	240	switch (ctrl->id) {
	241	case V4L2_CID_AUDIO_VOLUME:
	242	left = (t->lvol+84)*606;
	243	right = (t->rvol+84)*606;
	244
	245	volume = max(left,right);
	246	balance = (32768*min(left,right))/
	247	(volume ? volume : 1);
	248	balance =(left<right)?
	249	(65535-balance) : balance;
	250
	251	volume = ctrl->value;
1da177e4	252
5eba3571 MCC	253	chvol=1;
	254	break;
	255	case V4L2_CID_AUDIO_BALANCE:
1da177e4 LT	256	left = (t->lvol+84)*606;
1da177e4 LT	257	right = (t->rvol+84)*606;
5eba3571 MCC	258
	259	volume=max(left,right);
	260
	261	balance = ctrl->value;
	262
	263	chvol=1;
	264	break;
	265	case V4L2_CID_AUDIO_BASS:
	266	t->bass = ((ctrl->value/2400)-12) & 0xff;
	267	if (t->bass > 15)
	268	t->bass = 15;
	269	if (t->bass < -12)
	270	t->bass = -12 & 0xff;
	271	break;
	272	case V4L2_CID_AUDIO_TREBLE:
	273	t->treble = ((ctrl->value/2700)-12) & 0xff;
	274	if (t->treble > 12)
	275	t->treble = 12;
	276	if (t->treble < -12)
	277	t->treble = -12 & 0xff;
	278	break;
	279	default:
	280	return -EINVAL;
1da177e4 LT	281	}
1da177e4 LT	282
5eba3571 MCC	283	if (chvol) {
	284	left = (min(65536 - balance,32768) *
	285	volume) / 32768;
	286	right = (min(balance,32768) *
	287	volume) / 32768;
1da177e4 LT	288	t->lvol = ((left/606)-84) & 0xff;
1da177e4 LT	289	if (t->lvol > 24)
5eba3571	290	t->lvol = 24;
1da177e4	291	if (t->lvol < -84)
5eba3571	292	t->lvol = -84 & 0xff;
1da177e4 LT	293
	294	t->rvol = ((right/606)-84) & 0xff;
	295	if (t->rvol > 24)
5eba3571	296	t->rvol = 24;
1da177e4	297	if (t->rvol < -84)
5eba3571 MCC	298	t->rvol = -84 & 0xff;
5eba3571 MCC	299	}
1da177e4	300
12f91a3f	301	tda9875_set(sd);
5eba3571 MCC	302	return 0;
5eba3571 MCC	303	}
1da177e4	304
12f91a3f	305	static int tda9875_queryctrl(struct v4l2_subdev sd, struct v4l2_queryctrl qc)
5eba3571	306	{
12f91a3f HV	307	switch (qc->id) {
12f91a3f HV	308	case V4L2_CID_AUDIO_VOLUME:
10afbef1	309	return v4l2_ctrl_query_fill(qc, 0, 65535, 65535 / 100, 58880);
12f91a3f HV	310	case V4L2_CID_AUDIO_BASS:
12f91a3f HV	311	case V4L2_CID_AUDIO_TREBLE:
10afbef1	312	return v4l2_ctrl_query_fill(qc, 0, 65535, 65535 / 100, 32768);
5eba3571	313	}
12f91a3f HV	314	return -EINVAL;
12f91a3f HV	315	}
1da177e4	316
12f91a3f	317	/* ----------------------------------------------------------------------- */
1da177e4	318
12f91a3f HV	319	static const struct v4l2_subdev_core_ops tda9875_core_ops = {
	320	.queryctrl = tda9875_queryctrl,
	321	.g_ctrl = tda9875_g_ctrl,
	322	.s_ctrl = tda9875_s_ctrl,
	323	};
1da177e4	324
12f91a3f HV	325	static const struct v4l2_subdev_ops tda9875_ops = {
	326	.core = &tda9875_core_ops,
	327	};
1da177e4	328
12f91a3f	329	/* ----------------------------------------------------------------------- */
1da177e4 LT	330
1da177e4 LT	331
12f91a3f HV	332	/* *********************** *
	333	* i2c interface functions *
	334	* *********************** */
1da177e4	335
12f91a3f	336	static int tda9875_checkit(struct i2c_client *client, int addr)
1da177e4	337	{
12f91a3f	338	int dic, rev;
1da177e4	339
12f91a3f HV	340	dic = i2c_read_register(client, addr, 254);
	341	rev = i2c_read_register(client, addr, 255);
	342
	343	if (dic == 0 \|\| dic == 2) { /* tda9875 and tda9875A */
	344	v4l_info(client, "tda9875%s rev. %d detected at 0x%02x\n",
	345	dic == 0 ? "" : "A", rev, addr << 1);
	346	return 1;
	347	}
	348	v4l_info(client, "no such chip at 0x%02x (dic=0x%x rev=0x%x)\n",
	349	addr << 1, dic, rev);
	350	return 0;
1da177e4 LT	351	}
1da177e4 LT	352
12f91a3f HV	353	static int tda9875_probe(struct i2c_client *client,
12f91a3f HV	354	const struct i2c_device_id *id)
1da177e4	355	{
12f91a3f HV	356	struct tda9875 *t;
	357	struct v4l2_subdev *sd;
	358
	359	v4l_info(client, "chip found @ 0x%02x (%s)\n",
	360	client->addr << 1, client->adapter->name);
	361
	362	if (!tda9875_checkit(client, client->addr))
	363	return -ENODEV;
	364
	365	t = kzalloc(sizeof(*t), GFP_KERNEL);
	366	if (!t)
	367	return -ENOMEM;
	368	sd = &t->sd;
	369	v4l2_i2c_subdev_init(sd, client, &tda9875_ops);
	370
	371	do_tda9875_init(sd);
	372	return 0;
1da177e4 LT	373	}
1da177e4 LT	374
12f91a3f HV	375	static int tda9875_remove(struct i2c_client *client)
	376	{
	377	struct v4l2_subdev *sd = i2c_get_clientdata(client);
1da177e4	378
12f91a3f HV	379	do_tda9875_init(sd);
	380	v4l2_device_unregister_subdev(sd);
	381	kfree(to_state(sd));
	382	return 0;
	383	}
1da177e4	384
12f91a3f HV	385	static const struct i2c_device_id tda9875_id[] = {
	386	{ "tda9875", 0 },
	387	{ }
	388	};
	389	MODULE_DEVICE_TABLE(i2c, tda9875_id);
	390
	391	static struct v4l2_i2c_driver_data v4l2_i2c_data = {
	392	.name = "tda9875",
12f91a3f HV	393	.probe = tda9875_probe,
	394	.remove = tda9875_remove,
	395	.id_table = tda9875_id,
	396	};