[linux-block.git] / drivers / media / common / tuners / tea5761.c

/*
 * For Philips TEA5761 FM Chip
 * I2C address is allways 0x20 (0x10 at 7-bit mode).
 *
 * Copyright (c) 2005-2007 Mauro Carvalho Chehab (mchehab@infradead.org)
 * This code is placed under the terms of the GNUv2 General Public License
 *
 */

#include <linux/i2c.h>
#include <linux/slab.h>
#include <linux/delay.h>
#include <linux/videodev2.h>
#include <media/tuner.h>
#include "tuner-i2c.h"
#include "tea5761.h"

static int debug;
module_param(debug, int, 0644);
MODULE_PARM_DESC(debug, "enable verbose debug messages");

struct tea5761_priv {
	struct tuner_i2c_props i2c_props;

	u32 frequency;
};

/*****************************************************************************/

/***************************
 * TEA5761HN I2C registers *
 ***************************/

/* INTREG - Read: bytes 0 and 1 / Write: byte 0 */

	/* first byte for reading */
#define TEA5761_INTREG_IFFLAG		0x10
#define TEA5761_INTREG_LEVFLAG		0x8
#define TEA5761_INTREG_FRRFLAG		0x2
#define TEA5761_INTREG_BLFLAG		0x1

	/* second byte for reading / byte for writing */
#define TEA5761_INTREG_IFMSK		0x10
#define TEA5761_INTREG_LEVMSK		0x8
#define TEA5761_INTREG_FRMSK		0x2
#define TEA5761_INTREG_BLMSK		0x1

/* FRQSET - Read: bytes 2 and 3 / Write: byte 1 and 2 */

	/* First byte */
#define TEA5761_FRQSET_SEARCH_UP 0x80		/* 1=Station search from botton to up */
#define TEA5761_FRQSET_SEARCH_MODE 0x40		/* 1=Search mode */

	/* Bits 0-5 for divider MSB */

	/* Second byte */
	/* Bits 0-7 for divider LSB */

/* TNCTRL - Read: bytes 4 and 5 / Write: Bytes 3 and 4 */

	/* first byte */

#define TEA5761_TNCTRL_PUPD_0	0x40	/* Power UP/Power Down MSB */
#define TEA5761_TNCTRL_BLIM	0X20	/* 1= Japan Frequencies, 0= European frequencies */
#define TEA5761_TNCTRL_SWPM	0x10	/* 1= software port is FRRFLAG */
#define TEA5761_TNCTRL_IFCTC	0x08	/* 1= IF count time 15.02 ms, 0= IF count time 2.02 ms */
#define TEA5761_TNCTRL_AFM	0x04
#define TEA5761_TNCTRL_SMUTE	0x02	/* 1= Soft mute */
#define TEA5761_TNCTRL_SNC	0x01

	/* second byte */

#define TEA5761_TNCTRL_MU	0x80	/* 1=Hard mute */
#define TEA5761_TNCTRL_SSL_1	0x40
#define TEA5761_TNCTRL_SSL_0	0x20
#define TEA5761_TNCTRL_HLSI	0x10
#define TEA5761_TNCTRL_MST	0x08	/* 1 = mono */
#define TEA5761_TNCTRL_SWP	0x04
#define TEA5761_TNCTRL_DTC	0x02	/* 1 = deemphasis 50 us, 0 = deemphasis 75 us */
#define TEA5761_TNCTRL_AHLSI	0x01

/* FRQCHECK - Read: bytes 6 and 7  */
	/* First byte */

	/* Bits 0-5 for divider MSB */

	/* Second byte */
	/* Bits 0-7 for divider LSB */

/* TUNCHECK - Read: bytes 8 and 9  */

	/* First byte */
#define TEA5761_TUNCHECK_IF_MASK	0x7e	/* IF count */
#define TEA5761_TUNCHECK_TUNTO		0x01

	/* Second byte */
#define TEA5761_TUNCHECK_LEV_MASK	0xf0	/* Level Count */
#define TEA5761_TUNCHECK_LD		0x08
#define TEA5761_TUNCHECK_STEREO		0x04

/* TESTREG - Read: bytes 10 and 11 / Write: bytes 5 and 6 */

	/* All zero = no test mode */

/* MANID - Read: bytes 12 and 13 */

	/* First byte - should be 0x10 */
#define TEA5767_MANID_VERSION_MASK	0xf0	/* Version = 1 */
#define TEA5767_MANID_ID_MSB_MASK	0x0f	/* Manufacurer ID - should be 0 */

	/* Second byte - Should be 0x2b */

#define TEA5767_MANID_ID_LSB_MASK	0xfe	/* Manufacturer ID - should be 0x15 */
#define TEA5767_MANID_IDAV		0x01	/* 1 = Chip has ID, 0 = Chip has no ID */

/* Chip ID - Read: bytes 14 and 15 */

	/* First byte - should be 0x57 */

	/* Second byte - should be 0x61 */

/*****************************************************************************/

#define FREQ_OFFSET 0 /* for TEA5767, it is 700 to give the right freq */
static void tea5761_status_dump(unsigned char *buffer)
{
	unsigned int div, frq;

	div = ((buffer[2] & 0x3f) << 8) | buffer[3];

	frq = 1000 * (div * 32768 / 1000 + FREQ_OFFSET + 225) / 4;	/* Freq in KHz */

	printk(KERN_INFO "tea5761: Frequency %d.%03d KHz (divider = 0x%04x)\n",
	       frq / 1000, frq % 1000, div);
}

/* Freq should be specifyed at 62.5 Hz */
static int set_radio_freq(struct dvb_frontend *fe,
			  struct analog_parameters *params)
{
	struct tea5761_priv *priv = fe->tuner_priv;
	unsigned int frq = params->frequency;
	unsigned char buffer[7] = {0, 0, 0, 0, 0, 0, 0 };
	unsigned div;
	int rc;

	tuner_dbg("radio freq counter %d\n", frq);

	if (params->mode == T_STANDBY) {
		tuner_dbg("TEA5761 set to standby mode\n");
		buffer[5] |= TEA5761_TNCTRL_MU;
	} else {
		buffer[4] |= TEA5761_TNCTRL_PUPD_0;
	}


	if (params->audmode == V4L2_TUNER_MODE_MONO) {
		tuner_dbg("TEA5761 set to mono\n");
		buffer[5] |= TEA5761_TNCTRL_MST;
	} else {
		tuner_dbg("TEA5761 set to stereo\n");
	}

	div = (1000 * (frq * 4 / 16 + 700 + 225) ) >> 15;
	buffer[1] = (div >> 8) & 0x3f;
	buffer[2] = div & 0xff;

	if (debug)
		tea5761_status_dump(buffer);

	if (7 != (rc = tuner_i2c_xfer_send(&priv->i2c_props, buffer, 7)))
		tuner_warn("i2c i/o error: rc == %d (should be 5)\n", rc);

	priv->frequency = frq * 125 / 2;

	return 0;
}

static int tea5761_read_status(struct dvb_frontend *fe, char *buffer)
{
	struct tea5761_priv *priv = fe->tuner_priv;
	int rc;

	memset(buffer, 0, 16);
	if (16 != (rc = tuner_i2c_xfer_recv(&priv->i2c_props, buffer, 16))) {
		tuner_warn("i2c i/o error: rc == %d (should be 16)\n", rc);
		return -EREMOTEIO;
	}

	return 0;
}

static inline int tea5761_signal(struct dvb_frontend *fe, const char *buffer)
{
	struct tea5761_priv *priv = fe->tuner_priv;

	int signal = ((buffer[9] & TEA5761_TUNCHECK_LEV_MASK) << (13 - 4));

	tuner_dbg("Signal strength: %d\n", signal);

	return signal;
}

static inline int tea5761_stereo(struct dvb_frontend *fe, const char *buffer)
{
	struct tea5761_priv *priv = fe->tuner_priv;

	int stereo = buffer[9] & TEA5761_TUNCHECK_STEREO;

	tuner_dbg("Radio ST GET = %02x\n", stereo);

	return (stereo ? V4L2_TUNER_SUB_STEREO : 0);
}

static int tea5761_get_status(struct dvb_frontend *fe, u32 *status)
{
	unsigned char buffer[16];

	*status = 0;

	if (0 == tea5761_read_status(fe, buffer)) {
		if (tea5761_signal(fe, buffer))
			*status = TUNER_STATUS_LOCKED;
		if (tea5761_stereo(fe, buffer))
			*status |= TUNER_STATUS_STEREO;
	}

	return 0;
}

static int tea5761_get_rf_strength(struct dvb_frontend *fe, u16 *strength)
{
	unsigned char buffer[16];

	*strength = 0;

	if (0 == tea5761_read_status(fe, buffer))
		*strength = tea5761_signal(fe, buffer);

	return 0;
}

int tea5761_autodetection(struct i2c_adapter* i2c_adap, u8 i2c_addr)
{
	unsigned char buffer[16];
	int rc;
	struct tuner_i2c_props i2c = { .adap = i2c_adap, .addr = i2c_addr };

	if (16 != (rc = tuner_i2c_xfer_recv(&i2c, buffer, 16))) {
		printk(KERN_WARNING "it is not a TEA5761. Received %i chars.\n", rc);
		return -EINVAL;
	}

	if ((buffer[13] != 0x2b) || (buffer[14] != 0x57) || (buffer[15] != 0x061)) {
		printk(KERN_WARNING "Manufacturer ID= 0x%02x, Chip ID = %02x%02x."
				    " It is not a TEA5761\n",
				    buffer[13], buffer[14], buffer[15]);
		return -EINVAL;
	}
	printk(KERN_WARNING "tea5761: TEA%02x%02x detected. "
			    "Manufacturer ID= 0x%02x\n",
			    buffer[14], buffer[15], buffer[13]);

	return 0;
}

static int tea5761_release(struct dvb_frontend *fe)
{
	kfree(fe->tuner_priv);
	fe->tuner_priv = NULL;

	return 0;
}

static int tea5761_get_frequency(struct dvb_frontend *fe, u32 *frequency)
{
	struct tea5761_priv *priv = fe->tuner_priv;
	*frequency = priv->frequency;
	return 0;
}

static struct dvb_tuner_ops tea5761_tuner_ops = {
	.info = {
		.name           = "tea5761", // Philips TEA5761HN FM Radio
	},
	.set_analog_params = set_radio_freq,
	.release           = tea5761_release,
	.get_frequency     = tea5761_get_frequency,
	.get_status        = tea5761_get_status,
	.get_rf_strength   = tea5761_get_rf_strength,
};

struct dvb_frontend *tea5761_attach(struct dvb_frontend *fe,
				    struct i2c_adapter* i2c_adap,
				    u8 i2c_addr)
{
	struct tea5761_priv *priv = NULL;

	if (tea5761_autodetection(i2c_adap, i2c_addr) != 0)
		return NULL;

	priv = kzalloc(sizeof(struct tea5761_priv), GFP_KERNEL);
	if (priv == NULL)
		return NULL;
	fe->tuner_priv = priv;

	priv->i2c_props.addr = i2c_addr;
	priv->i2c_props.adap = i2c_adap;
	priv->i2c_props.name = "tea5761";

	memcpy(&fe->ops.tuner_ops, &tea5761_tuner_ops,
	       sizeof(struct dvb_tuner_ops));

	tuner_info("type set to %s\n", "Philips TEA5761HN FM Radio");

	return fe;
}


EXPORT_SYMBOL_GPL(tea5761_attach);
EXPORT_SYMBOL_GPL(tea5761_autodetection);

MODULE_DESCRIPTION("Philips TEA5761 FM tuner driver");
MODULE_AUTHOR("Mauro Carvalho Chehab <mchehab@infradead.org>");
MODULE_LICENSE("GPL");
Commit	Line	Data
8573a9e6 MCC	1	/*
	2	* For Philips TEA5761 FM Chip
	3	* I2C address is allways 0x20 (0x10 at 7-bit mode).
	4	*
	5	* Copyright (c) 2005-2007 Mauro Carvalho Chehab (mchehab@infradead.org)
	6	* This code is placed under the terms of the GNUv2 General Public License
	7	*
	8	*/
	9
	10	#include <linux/i2c.h>
5a0e3ad6	11	#include <linux/slab.h>
8573a9e6	12	#include <linux/delay.h>
7f6adeaf	13	#include <linux/videodev2.h>
8573a9e6	14	#include <media/tuner.h>
7ab10bf7 MK	15	#include "tuner-i2c.h"
7ab10bf7 MK	16	#include "tea5761.h"
8573a9e6	17
ff699e6b	18	static int debug;
7ab10bf7 MK	19	module_param(debug, int, 0644);
7ab10bf7 MK	20	MODULE_PARM_DESC(debug, "enable verbose debug messages");
8573a9e6	21
db8a6956 MK	22	struct tea5761_priv {
db8a6956 MK	23	struct tuner_i2c_props i2c_props;
7ab10bf7 MK	24
7ab10bf7 MK	25	u32 frequency;
db8a6956 MK	26	};
db8a6956 MK	27
8573a9e6 MCC	28	/*****************************************************************************/
	29
	30	/***************************
	31	* TEA5761HN I2C registers *
	32	***************************/
	33
	34	/* INTREG - Read: bytes 0 and 1 / Write: byte 0 */
	35
	36	/* first byte for reading */
	37	#define TEA5761_INTREG_IFFLAG 0x10
	38	#define TEA5761_INTREG_LEVFLAG 0x8
	39	#define TEA5761_INTREG_FRRFLAG 0x2
	40	#define TEA5761_INTREG_BLFLAG 0x1
	41
	42	/* second byte for reading / byte for writing */
	43	#define TEA5761_INTREG_IFMSK 0x10
	44	#define TEA5761_INTREG_LEVMSK 0x8
	45	#define TEA5761_INTREG_FRMSK 0x2
	46	#define TEA5761_INTREG_BLMSK 0x1
	47
	48	/* FRQSET - Read: bytes 2 and 3 / Write: byte 1 and 2 */
	49
	50	/* First byte */
	51	#define TEA5761_FRQSET_SEARCH_UP 0x80 /* 1=Station search from botton to up */
	52	#define TEA5761_FRQSET_SEARCH_MODE 0x40 /* 1=Search mode */
	53
	54	/* Bits 0-5 for divider MSB */
	55
	56	/* Second byte */
	57	/* Bits 0-7 for divider LSB */
	58
	59	/* TNCTRL - Read: bytes 4 and 5 / Write: Bytes 3 and 4 */
	60
	61	/* first byte */
	62
	63	#define TEA5761_TNCTRL_PUPD_0 0x40 /* Power UP/Power Down MSB */
	64	#define TEA5761_TNCTRL_BLIM 0X20 /* 1= Japan Frequencies, 0= European frequencies */
	65	#define TEA5761_TNCTRL_SWPM 0x10 /* 1= software port is FRRFLAG */
	66	#define TEA5761_TNCTRL_IFCTC 0x08 /* 1= IF count time 15.02 ms, 0= IF count time 2.02 ms */
	67	#define TEA5761_TNCTRL_AFM 0x04
	68	#define TEA5761_TNCTRL_SMUTE 0x02 /* 1= Soft mute */
	69	#define TEA5761_TNCTRL_SNC 0x01
	70
	71	/* second byte */
	72
	73	#define TEA5761_TNCTRL_MU 0x80 /* 1=Hard mute */
	74	#define TEA5761_TNCTRL_SSL_1 0x40
	75	#define TEA5761_TNCTRL_SSL_0 0x20
	76	#define TEA5761_TNCTRL_HLSI 0x10
	77	#define TEA5761_TNCTRL_MST 0x08 /* 1 = mono */
	78	#define TEA5761_TNCTRL_SWP 0x04
	79	#define TEA5761_TNCTRL_DTC 0x02 /* 1 = deemphasis 50 us, 0 = deemphasis 75 us */
	80	#define TEA5761_TNCTRL_AHLSI 0x01
	81
	82	/* FRQCHECK - Read: bytes 6 and 7 */
	83	/* First byte */
	84
	85	/* Bits 0-5 for divider MSB */
	86
	87	/* Second byte */
	88	/* Bits 0-7 for divider LSB */
	89
	90	/* TUNCHECK - Read: bytes 8 and 9 */
	91
92	/* First byte */
93	#define TEA5761_TUNCHECK_IF_MASK 0x7e /* IF count */
94	#define TEA5761_TUNCHECK_TUNTO 0x01
95
96	/* Second byte */
97	#define TEA5761_TUNCHECK_LEV_MASK 0xf0 /* Level Count */
98	#define TEA5761_TUNCHECK_LD 0x08
99	#define TEA5761_TUNCHECK_STEREO 0x04
100
101	/* TESTREG - Read: bytes 10 and 11 / Write: bytes 5 and 6 */
102
103	/* All zero = no test mode */
104
105	/* MANID - Read: bytes 12 and 13 */
106
107	/* First byte - should be 0x10 */
108	#define TEA5767_MANID_VERSION_MASK 0xf0 /* Version = 1 */
109	#define TEA5767_MANID_ID_MSB_MASK 0x0f /* Manufacurer ID - should be 0 */
110
111	/* Second byte - Should be 0x2b */
112
113	#define TEA5767_MANID_ID_LSB_MASK 0xfe /* Manufacturer ID - should be 0x15 */
114	#define TEA5767_MANID_IDAV 0x01 /* 1 = Chip has ID, 0 = Chip has no ID */
115
116	/* Chip ID - Read: bytes 14 and 15 */
117
118	/* First byte - should be 0x57 */
119
120	/* Second byte - should be 0x61 */
121
122	/*****************************************************************************/
123
8573a9e6 MCC	124	#define FREQ_OFFSET 0 /* for TEA5767, it is 700 to give the right freq */
	125	static void tea5761_status_dump(unsigned char *buffer)
	126	{
	127	unsigned int div, frq;
	128
	129	div = ((buffer[2] & 0x3f) << 8) \| buffer[3];
	130
	131	frq = 1000 * (div * 32768 / 1000 + FREQ_OFFSET + 225) / 4; /* Freq in KHz */
	132
2756665c	133	printk(KERN_INFO "tea5761: Frequency %d.%03d KHz (divider = 0x%04x)\n",
8573a9e6 MCC	134	frq / 1000, frq % 1000, div);
	135	}
	136
	137	/* Freq should be specifyed at 62.5 Hz */
7ab10bf7 MK	138	static int set_radio_freq(struct dvb_frontend *fe,
7ab10bf7 MK	139	struct analog_parameters *params)
8573a9e6	140	{
7ab10bf7 MK	141	struct tea5761_priv *priv = fe->tuner_priv;
7ab10bf7 MK	142	unsigned int frq = params->frequency;
8573a9e6 MCC	143	unsigned char buffer[7] = {0, 0, 0, 0, 0, 0, 0 };
	144	unsigned div;
	145	int rc;
	146
7ab10bf7	147	tuner_dbg("radio freq counter %d\n", frq);
8573a9e6	148
7ab10bf7	149	if (params->mode == T_STANDBY) {
8573a9e6 MCC	150	tuner_dbg("TEA5761 set to standby mode\n");
	151	buffer[5] \|= TEA5761_TNCTRL_MU;
	152	} else {
	153	buffer[4] \|= TEA5761_TNCTRL_PUPD_0;
	154	}
	155
	156
7ab10bf7	157	if (params->audmode == V4L2_TUNER_MODE_MONO) {
8573a9e6 MCC	158	tuner_dbg("TEA5761 set to mono\n");
8573a9e6 MCC	159	buffer[5] \|= TEA5761_TNCTRL_MST;
8573a9e6 MCC	160	} else {
	161	tuner_dbg("TEA5761 set to stereo\n");
	162	}
	163
	164	div = (1000 * (frq * 4 / 16 + 700 + 225) ) >> 15;
	165	buffer[1] = (div >> 8) & 0x3f;
	166	buffer[2] = div & 0xff;
	167
7ab10bf7	168	if (debug)
8573a9e6 MCC	169	tea5761_status_dump(buffer);
8573a9e6 MCC	170
db8a6956	171	if (7 != (rc = tuner_i2c_xfer_send(&priv->i2c_props, buffer, 7)))
8573a9e6	172	tuner_warn("i2c i/o error: rc == %d (should be 5)\n", rc);
7ab10bf7 MK	173
	174	priv->frequency = frq * 125 / 2;
	175
	176	return 0;
8573a9e6 MCC	177	}
8573a9e6 MCC	178
fd443f74	179	static int tea5761_read_status(struct dvb_frontend fe, char buffer)
8573a9e6	180	{
7ab10bf7	181	struct tea5761_priv *priv = fe->tuner_priv;
fd443f74	182	int rc;
8573a9e6	183
fd443f74 MK	184	memset(buffer, 0, 16);
	185	if (16 != (rc = tuner_i2c_xfer_recv(&priv->i2c_props, buffer, 16))) {
	186	tuner_warn("i2c i/o error: rc == %d (should be 16)\n", rc);
	187	return -EREMOTEIO;
	188	}
8573a9e6	189
fd443f74	190	return 0;
8573a9e6 MCC	191	}
8573a9e6 MCC	192
fd443f74	193	static inline int tea5761_signal(struct dvb_frontend fe, const char buffer)
8573a9e6	194	{
7ab10bf7	195	struct tea5761_priv *priv = fe->tuner_priv;
8573a9e6	196
fd443f74 MK	197	int signal = ((buffer[9] & TEA5761_TUNCHECK_LEV_MASK) << (13 - 4));
	198
	199	tuner_dbg("Signal strength: %d\n", signal);
8573a9e6	200
fd443f74 MK	201	return signal;
fd443f74 MK	202	}
8573a9e6	203
fd443f74 MK	204	static inline int tea5761_stereo(struct dvb_frontend fe, const char buffer)
	205	{
	206	struct tea5761_priv *priv = fe->tuner_priv;
8573a9e6	207
fd443f74 MK	208	int stereo = buffer[9] & TEA5761_TUNCHECK_STEREO;
	209
	210	tuner_dbg("Radio ST GET = %02x\n", stereo);
	211
	212	return (stereo ? V4L2_TUNER_SUB_STEREO : 0);
8573a9e6 MCC	213	}
8573a9e6 MCC	214
7ab10bf7 MK	215	static int tea5761_get_status(struct dvb_frontend fe, u32 status)
7ab10bf7 MK	216	{
fd443f74	217	unsigned char buffer[16];
7ab10bf7 MK	218
	219	*status = 0;
	220
fd443f74 MK	221	if (0 == tea5761_read_status(fe, buffer)) {
	222	if (tea5761_signal(fe, buffer))
	223	*status = TUNER_STATUS_LOCKED;
	224	if (tea5761_stereo(fe, buffer))
	225	*status \|= TUNER_STATUS_STEREO;
	226	}
	227
	228	return 0;
	229	}
	230
	231	static int tea5761_get_rf_strength(struct dvb_frontend fe, u16 strength)
	232	{
	233	unsigned char buffer[16];
	234
	235	*strength = 0;
7ab10bf7	236
fd443f74 MK	237	if (0 == tea5761_read_status(fe, buffer))
fd443f74 MK	238	*strength = tea5761_signal(fe, buffer);
7ab10bf7 MK	239
	240	return 0;
	241	}
	242
	243	int tea5761_autodetection(struct i2c_adapter* i2c_adap, u8 i2c_addr)
8573a9e6 MCC	244	{
	245	unsigned char buffer[16];
	246	int rc;
7ab10bf7	247	struct tuner_i2c_props i2c = { .adap = i2c_adap, .addr = i2c_addr };
8573a9e6	248
db8a6956	249	if (16 != (rc = tuner_i2c_xfer_recv(&i2c, buffer, 16))) {
7ab10bf7	250	printk(KERN_WARNING "it is not a TEA5761. Received %i chars.\n", rc);
867e835f	251	return -EINVAL;
8573a9e6 MCC	252	}
8573a9e6 MCC	253
867e835f MCC	254	if ((buffer[13] != 0x2b) \|\| (buffer[14] != 0x57) \|\| (buffer[15] != 0x061)) {
	255	printk(KERN_WARNING "Manufacturer ID= 0x%02x, Chip ID = %02x%02x."
	256	" It is not a TEA5761\n",
	257	buffer[13], buffer[14], buffer[15]);
	258	return -EINVAL;
8573a9e6	259	}
867e835f MCC	260	printk(KERN_WARNING "tea5761: TEA%02x%02x detected. "
	261	"Manufacturer ID= 0x%02x\n",
	262	buffer[14], buffer[15], buffer[13]);
	263
7ab10bf7 MK	264	return 0;
	265	}
	266
	267	static int tea5761_release(struct dvb_frontend *fe)
	268	{
	269	kfree(fe->tuner_priv);
	270	fe->tuner_priv = NULL;
	271
8573a9e6 MCC	272	return 0;
	273	}
	274
7ab10bf7	275	static int tea5761_get_frequency(struct dvb_frontend fe, u32 frequency)
db8a6956	276	{
7ab10bf7 MK	277	struct tea5761_priv *priv = fe->tuner_priv;
	278	*frequency = priv->frequency;
	279	return 0;
db8a6956 MK	280	}
db8a6956 MK	281
7ab10bf7 MK	282	static struct dvb_tuner_ops tea5761_tuner_ops = {
	283	.info = {
	284	.name = "tea5761", // Philips TEA5761HN FM Radio
	285	},
	286	.set_analog_params = set_radio_freq,
	287	.release = tea5761_release,
	288	.get_frequency = tea5761_get_frequency,
	289	.get_status = tea5761_get_status,
fd443f74	290	.get_rf_strength = tea5761_get_rf_strength,
e407cd54 MK	291	};
e407cd54 MK	292
7ab10bf7 MK	293	struct dvb_frontend tea5761_attach(struct dvb_frontend fe,
	294	struct i2c_adapter* i2c_adap,
	295	u8 i2c_addr)
8573a9e6	296	{
db8a6956	297	struct tea5761_priv *priv = NULL;
8573a9e6	298
4277106b	299	if (tea5761_autodetection(i2c_adap, i2c_addr) != 0)
7ab10bf7	300	return NULL;
8573a9e6	301
db8a6956 MK	302	priv = kzalloc(sizeof(struct tea5761_priv), GFP_KERNEL);
db8a6956 MK	303	if (priv == NULL)
7ab10bf7 MK	304	return NULL;
7ab10bf7 MK	305	fe->tuner_priv = priv;
db8a6956	306
7ab10bf7 MK	307	priv->i2c_props.addr = i2c_addr;
7ab10bf7 MK	308	priv->i2c_props.adap = i2c_adap;
2756665c	309	priv->i2c_props.name = "tea5761";
db8a6956	310
7ab10bf7 MK	311	memcpy(&fe->ops.tuner_ops, &tea5761_tuner_ops,
7ab10bf7 MK	312	sizeof(struct dvb_tuner_ops));
8573a9e6	313
7ab10bf7	314	tuner_info("type set to %s\n", "Philips TEA5761HN FM Radio");
8573a9e6	315
7ab10bf7	316	return fe;
8573a9e6	317	}
7ab10bf7 MK	318
	319
	320	EXPORT_SYMBOL_GPL(tea5761_attach);
	321	EXPORT_SYMBOL_GPL(tea5761_autodetection);
	322
	323	MODULE_DESCRIPTION("Philips TEA5761 FM tuner driver");
	324	MODULE_AUTHOR("Mauro Carvalho Chehab <mchehab@infradead.org>");
	325	MODULE_LICENSE("GPL");