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Commit 8573a9e6 authored by Mauro Carvalho Chehab's avatar Mauro Carvalho Chehab
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V4L/DVB (5563a): Add experimental support for tea5761 tuner 



This driver were made based on tea5761 specs.

Signed-off-by: default avatarMauro Carvalho Chehab <mchehab@infradead.org>
parent 8b4a4080

Documentation/video4linux/CARDLIST.tuner

+1 −0
Original line number Diff line number Diff line
@@ -72,3 +72,4 @@ tuner=70 - Samsung TCPN 2121P30A 
tuner=71 - Xceive xc3028

tuner=72 - Thomson FE6600

tuner=73 - Samsung TCPG 6121P30A

tuner=75 - Philips TEA5761 FM Radio

drivers/media/video/Kconfig

+8 −0
Original line number Diff line number Diff line
@@ -489,6 +489,14 @@ config TUNER_3036 
	  Say Y here to include support for Philips SAB3036 compatible tuners.

	  If in doubt, say N.



config TUNER_TEA5761

	tristate "TEA 5761 radio tuner (EXPERIMENTAL)"

	depends on I2C

	select VIDEO_TUNER

	help

	  Say Y here to include support for Philips TEA5761 radio tuner.

	  If in doubt, say N.



config VIDEO_VINO

	tristate "SGI Vino Video For Linux (EXPERIMENTAL)"

	depends on I2C && SGI_IP22 && EXPERIMENTAL && VIDEO_V4L2

drivers/media/video/Makefile

+4 −0
Original line number Diff line number Diff line
@@ -7,6 +7,10 @@ zr36067-objs := zoran_procfs.o zoran_device.o \ 
tuner-objs	:=	tuner-core.o tuner-types.o tuner-simple.o \

			mt20xx.o tda8290.o tea5767.o tda9887.o



ifneq ($(CONFIG_TUNER_TEA5761),n)

  tuner-objs += tea5761.o

endif



msp3400-objs	:=	msp3400-driver.o msp3400-kthreads.o



obj-$(CONFIG_VIDEO_DEV) += videodev.o v4l2-common.o compat_ioctl32.o

drivers/media/video/tea5761.c

0 → 100644
+239 −0
Original line number Diff line number Diff line 
/*

 * 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/videodev.h>

#include <linux/delay.h>

#include <media/tuner.h>

#include <media/tuner.h>



#define PREFIX "TEA5761 "



/* from tuner-core.c */

extern int tuner_debug;



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



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

 * 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 */



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



static void set_tv_freq(struct i2c_client *c, unsigned int freq)

{

	struct tuner *t = i2c_get_clientdata(c);



	tuner_warn("This tuner doesn't support TV freq.\n");

}



#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(PREFIX "Frequency %d.%03d KHz (divider = 0x%04x)\n",

	       frq / 1000, frq % 1000, div);

}



/* Freq should be specifyed at 62.5 Hz */

static void set_radio_freq(struct i2c_client *c, unsigned int frq)

{

	struct tuner *t = i2c_get_clientdata(c);

	unsigned char buffer[7] = {0, 0, 0, 0, 0, 0, 0 };

	unsigned div;

	int rc;



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



	if (t->mode == T_STANDBY) {

		tuner_dbg("TEA5761 set to standby mode\n");

		buffer[5] |= TEA5761_TNCTRL_MU;

	} else {

		buffer[4] |= TEA5761_TNCTRL_PUPD_0;

	}





	if (t->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 (tuner_debug)

		tea5761_status_dump(buffer);



	if (7 != (rc = i2c_master_send(c, buffer, 7)))

		tuner_warn("i2c i/o error: rc == %d (should be 5)\n", rc);

}



static int tea5761_signal(struct i2c_client *c)

{

	unsigned char buffer[16];

	int rc;

	struct tuner *t = i2c_get_clientdata(c);



	memset(buffer, 0, sizeof(buffer));

	if (16 != (rc = i2c_master_recv(c, buffer, 16)))

		tuner_warn("i2c i/o error: rc == %d (should be 5)\n", rc);



	return ((buffer[9] & TEA5761_TUNCHECK_LEV_MASK) << (13 - 4));

}



static int tea5761_stereo(struct i2c_client *c)

{

	unsigned char buffer[16];

	int rc;

	struct tuner *t = i2c_get_clientdata(c);



	memset(buffer, 0, sizeof(buffer));

	if (16 != (rc = i2c_master_recv(c, buffer, 16)))

		tuner_warn("i2c i/o error: rc == %d (should be 5)\n", rc);



	rc = buffer[9] & TEA5761_TUNCHECK_STEREO;



	tuner_dbg("TEA5761 radio ST GET = %02x\n", rc);



	return (rc ? V4L2_TUNER_SUB_STEREO : 0);

}



int tea5761_autodetection(struct i2c_client *c)

{

	unsigned char buffer[16];

	int rc;

	struct tuner *t = i2c_get_clientdata(c);



	if (16 != (rc = i2c_master_recv(c, buffer, 16))) {

		tuner_warn("it is not a TEA5761. Received %i chars.\n", rc);

		return EINVAL;

	}



	if (!((buffer[13] != 0x2b) || (buffer[14] != 0x57) || (buffer[15] != 0x061))) {

		tuner_warn("Manufacturer ID= 0x%02x, Chip ID = %02x%02x. It is not a TEA5761\n",buffer[13],buffer[14],buffer[15]);

		return EINVAL;

	}

	tuner_warn("TEA5761 detected.\n");

	return 0;

}



int tea5761_tuner_init(struct i2c_client *c)

{

	struct tuner *t = i2c_get_clientdata(c);



	if (tea5761_autodetection(c) == EINVAL)

		return EINVAL;



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

	strlcpy(c->name, "tea5761", sizeof(c->name));



	t->set_tv_freq = set_tv_freq;

	t->set_radio_freq = set_radio_freq;

	t->has_signal = tea5761_signal;

	t->is_stereo = tea5761_stereo;



	return (0);

}

drivers/media/video/tuner-core.c

+26 −0
Original line number Diff line number Diff line
@@ -25,6 +25,9 @@ 


/* standard i2c insmod options */

static unsigned short normal_i2c[] = {

#ifdef CONFIG_TUNER_5761

	0x10,

#endif

	0x42, 0x43, 0x4a, 0x4b,			/* tda8290 */

	0x60, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67,

	0x68, 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6f,
@@ -189,6 +192,16 @@ static void set_type(struct i2c_client *c, unsigned int type, 
		}

		t->mode_mask = T_RADIO;

		break;

#ifdef CONFIG_TUNER_5761

	case TUNER_TEA5761:

		if (tea5761_tuner_init(c) == EINVAL) {

			t->type = TUNER_ABSENT;

			t->mode_mask = T_UNINITIALIZED;

			return -ENODEV;

		}

		t->mode_mask = T_RADIO;

		break;

#endif

	case TUNER_PHILIPS_FMD1216ME_MK3:

		buffer[0] = 0x0b;

		buffer[1] = 0xdc;
@@ -460,6 +473,19 @@ static int tuner_attach(struct i2c_adapter *adap, int addr, int kind) 
	/* autodetection code based on the i2c addr */

	if (!no_autodetect) {

		switch (addr) {

#ifdef CONFIG_TUNER_5761

		case 0x10:

			if (tea5761_autodetection(&t->i2c) != EINVAL) {

				t->type = TUNER_TEA5761;

				t->mode_mask = T_RADIO;

				t->mode = T_STANDBY;

				t->radio_freq = 87.5 * 16000; /* Sets freq to FM range */

				default_mode_mask &= ~T_RADIO;



				goto register_client;

			}

			break;

#endif

		case 0x42:

		case 0x43:

		case 0x4a: