Commit 746d9732 authored by Michael Krufky's avatar Michael Krufky Committed by Mauro Carvalho Chehab
Browse files

V4L/DVB (6433): Move all tda8275/8275a tuning code from tda8290 module into tda827x module 



Add analog tuning support to tda827x dvb_frontend tuner module.

Convert tda8290 module back to native tuner interface.

The tda8290 analog demodulator will be handled the same way as tda9887.
The tuner.ko module (tuner-core) will pass commands to tda8290 via the
tuner_operations interface.  tda8290 will communicate with tda827x via
the dvb_frontend interface, while passing a pointer to a private data
structure.

Signed-off-by: default avatarMichael Krufky <mkrufky@linuxtv.org>
Reviewed-by: default avatarHans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: default avatarMauro Carvalho Chehab <mchehab@infradead.org>
parent de3fe21b

drivers/media/Kconfig

+1 −0
Original line number Diff line number Diff line
@@ -107,6 +107,7 @@ config TUNER_MT20XX 
config TUNER_TDA8290

	tristate "TDA 8290+8275(a) tuner combo"

	depends on I2C

	select DVB_TDA827X

	default m if VIDEO_TUNER_CUSTOMIZE

	help

	  Say Y here to include support for Philips TDA8290+8275(a) tuner.

drivers/media/dvb/frontends/tda827x.c

+293 −14
Original line number Diff line number Diff line
@@ -19,12 +19,16 @@ 
 */



#include <linux/module.h>

#include <linux/dvb/frontend.h>

#include <asm/types.h>

#include <linux/dvb/frontend.h>

#include <linux/videodev2.h>



#include "tda827x.h"



static int debug = 0;

module_param(debug, int, 0644);

MODULE_PARM_DESC(debug, "Turn on/off frontend debugging (default:off).");



#define dprintk(args...) \

	do {					    \

		if (debug) printk(KERN_DEBUG "tda827x: " args); \
@@ -48,7 +52,7 @@ struct tda827x_data { 
	u8 div1p5;

};



static const struct tda827x_data tda827x_dvbt[] = {

static const struct tda827x_data tda827x_table[] = {

	{ .lomax =  62000000, .spd = 3, .bs = 2, .bp = 0, .cp = 0, .gc3 = 3, .div1p5 = 1},

	{ .lomax =  66000000, .spd = 3, .bs = 3, .bp = 0, .cp = 0, .gc3 = 3, .div1p5 = 1},

	{ .lomax =  76000000, .spd = 3, .bs = 1, .bp = 0, .cp = 0, .gc3 = 3, .div1p5 = 0},
@@ -106,21 +110,22 @@ static int tda827xo_set_params(struct dvb_frontend *fe, 
	tuner_freq = params->frequency + if_freq;



	i = 0;

	while (tda827x_dvbt[i].lomax < tuner_freq) {

		if(tda827x_dvbt[i + 1].lomax == 0)

	while (tda827x_table[i].lomax < tuner_freq) {

		if (tda827x_table[i + 1].lomax == 0)

			break;

		i++;

	}



	N = ((tuner_freq + 125000) / 250000) << (tda827x_dvbt[i].spd + 2);

	N = ((tuner_freq + 125000) / 250000) << (tda827x_table[i].spd + 2);

	buf[0] = 0;

	buf[1] = (N>>8) | 0x40;

	buf[2] = N & 0xff;

	buf[3] = 0;

	buf[4] = 0x52;

	buf[5] = (tda827x_dvbt[i].spd << 6) + (tda827x_dvbt[i].div1p5 << 5) +

				(tda827x_dvbt[i].bs << 3) + tda827x_dvbt[i].bp;

	buf[6] = (tda827x_dvbt[i].gc3 << 4) + 0x8f;

	buf[5] = (tda827x_table[i].spd << 6) + (tda827x_table[i].div1p5 << 5) +

				(tda827x_table[i].bs << 3) +

				tda827x_table[i].bp;

	buf[6] = (tda827x_table[i].gc3 << 4) + 0x8f;

	buf[7] = 0xbf;

	buf[8] = 0x2a;

	buf[9] = 0x05;
@@ -140,7 +145,7 @@ static int tda827xo_set_params(struct dvb_frontend *fe, 
	msleep(500);

	/* correct CP value */

	buf[0] = 0x30;

	buf[1] = 0x50 + tda827x_dvbt[i].cp;

	buf[1] = 0x50 + tda827x_table[i].cp;

	msg.len = 2;



	if (fe->ops.i2c_gate_ctrl)
@@ -173,6 +178,100 @@ static int tda827xo_sleep(struct dvb_frontend *fe) 


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



static int tda827xo_set_analog_params(struct dvb_frontend *fe,

				      struct analog_parameters *params)

{

	unsigned char tuner_reg[8];

	unsigned char reg2[2];

	u32 N;

	int i;

	struct tda827x_priv *priv = fe->tuner_priv;

	struct i2c_msg msg = { .addr = priv->i2c_addr, .flags = 0 };

	unsigned int freq = params->frequency;



	if (params->mode == V4L2_TUNER_RADIO)

		freq = freq / 1000;



	N = freq + priv->cfg->sgIF;



	i = 0;

	while (tda827x_table[i].lomax < N * 62500) {

		if (tda827x_table[i + 1].lomax == 0)

			break;

		i++;

	}



	N = N << tda827x_table[i].spd;



	tuner_reg[0] = 0;

	tuner_reg[1] = (unsigned char)(N>>8);

	tuner_reg[2] = (unsigned char) N;

	tuner_reg[3] = 0x40;

	tuner_reg[4] = 0x52 + (priv->cfg->tda827x_lpsel << 5);

	tuner_reg[5] = (tda827x_table[i].spd    << 6) +

		       (tda827x_table[i].div1p5 << 5) +

		       (tda827x_table[i].bs     << 3) + tda827x_table[i].bp;

	tuner_reg[6] = 0x8f + (tda827x_table[i].gc3 << 4);

	tuner_reg[7] = 0x8f;



	msg.buf = tuner_reg;

	msg.len = 8;

	i2c_transfer(priv->i2c_adap, &msg, 1);



	msg.buf = reg2;

	msg.len = 2;

	reg2[0] = 0x80;

	reg2[1] = 0;

	i2c_transfer(priv->i2c_adap, &msg, 1);



	reg2[0] = 0x60;

	reg2[1] = 0xbf;

	i2c_transfer(priv->i2c_adap, &msg, 1);



	reg2[0] = 0x30;

	reg2[1] = tuner_reg[4] + 0x80;

	i2c_transfer(priv->i2c_adap, &msg, 1);



	msleep(1);

	reg2[0] = 0x30;

	reg2[1] = tuner_reg[4] + 4;

	i2c_transfer(priv->i2c_adap, &msg, 1);



	msleep(1);

	reg2[0] = 0x30;

	reg2[1] = tuner_reg[4];

	i2c_transfer(priv->i2c_adap, &msg, 1);



	msleep(550);

	reg2[0] = 0x30;

	reg2[1] = (tuner_reg[4] & 0xfc) + tda827x_table[i].cp;

	i2c_transfer(priv->i2c_adap, &msg, 1);



	reg2[0] = 0x60;

	reg2[1] = 0x3f;

	i2c_transfer(priv->i2c_adap, &msg, 1);



	reg2[0] = 0x80;

	reg2[1] = 0x08;   /* Vsync en */

	i2c_transfer(priv->i2c_adap, &msg, 1);



	priv->frequency = freq * 62500;



	return 0;

}



static void tda827xo_agcf(struct dvb_frontend *fe)

{

	struct tda827x_priv *priv = fe->tuner_priv;

	unsigned char data[] = { 0x80, 0x0c };

	struct i2c_msg msg = { .addr = priv->i2c_addr, .flags = 0,

			       .buf = data, .len = 2};



	i2c_transfer(priv->i2c_adap, &msg, 1);

}



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



struct tda827xa_data {

	u32 lomax;

	u8  svco;
@@ -212,6 +311,35 @@ static const struct tda827xa_data tda827xa_dvbt[] = { 
	{ .lomax =         0, .svco = 0, .spd = 0, .scr = 0, .sbs = 0, .gc3 = 0}

};



static struct tda827xa_data tda827xa_analog[] = {

	{ .lomax =  56875000, .svco = 3, .spd = 4, .scr = 0, .sbs = 0, .gc3 = 3},

	{ .lomax =  67250000, .svco = 0, .spd = 3, .scr = 0, .sbs = 0, .gc3 = 3},

	{ .lomax =  81250000, .svco = 1, .spd = 3, .scr = 0, .sbs = 0, .gc3 = 3},

	{ .lomax =  97500000, .svco = 2, .spd = 3, .scr = 0, .sbs = 0, .gc3 = 3},

	{ .lomax = 113750000, .svco = 3, .spd = 3, .scr = 0, .sbs = 1, .gc3 = 1},

	{ .lomax = 134500000, .svco = 0, .spd = 2, .scr = 0, .sbs = 1, .gc3 = 1},

	{ .lomax = 154000000, .svco = 1, .spd = 2, .scr = 0, .sbs = 1, .gc3 = 1},

	{ .lomax = 162500000, .svco = 1, .spd = 2, .scr = 0, .sbs = 1, .gc3 = 1},

	{ .lomax = 183000000, .svco = 2, .spd = 2, .scr = 0, .sbs = 1, .gc3 = 1},

	{ .lomax = 195000000, .svco = 2, .spd = 2, .scr = 0, .sbs = 2, .gc3 = 1},

	{ .lomax = 227500000, .svco = 3, .spd = 2, .scr = 0, .sbs = 2, .gc3 = 3},

	{ .lomax = 269000000, .svco = 0, .spd = 1, .scr = 0, .sbs = 2, .gc3 = 3},

	{ .lomax = 325000000, .svco = 1, .spd = 1, .scr = 0, .sbs = 2, .gc3 = 1},

	{ .lomax = 390000000, .svco = 2, .spd = 1, .scr = 0, .sbs = 3, .gc3 = 3},

	{ .lomax = 455000000, .svco = 3, .spd = 1, .scr = 0, .sbs = 3, .gc3 = 3},

	{ .lomax = 520000000, .svco = 0, .spd = 0, .scr = 0, .sbs = 3, .gc3 = 1},

	{ .lomax = 538000000, .svco = 0, .spd = 0, .scr = 1, .sbs = 3, .gc3 = 1},

	{ .lomax = 554000000, .svco = 1, .spd = 0, .scr = 0, .sbs = 3, .gc3 = 1},

	{ .lomax = 620000000, .svco = 1, .spd = 0, .scr = 0, .sbs = 4, .gc3 = 0},

	{ .lomax = 650000000, .svco = 1, .spd = 0, .scr = 1, .sbs = 4, .gc3 = 0},

	{ .lomax = 700000000, .svco = 2, .spd = 0, .scr = 0, .sbs = 4, .gc3 = 0},

	{ .lomax = 780000000, .svco = 2, .spd = 0, .scr = 1, .sbs = 4, .gc3 = 0},

	{ .lomax = 820000000, .svco = 3, .spd = 0, .scr = 0, .sbs = 4, .gc3 = 0},

	{ .lomax = 870000000, .svco = 3, .spd = 0, .scr = 1, .sbs = 4, .gc3 = 0},

	{ .lomax = 911000000, .svco = 3, .spd = 0, .scr = 2, .sbs = 4, .gc3 = 0},

	{ .lomax =         0, .svco = 0, .spd = 0, .scr = 0, .sbs = 0, .gc3 = 0}

};



static int tda827xa_set_params(struct dvb_frontend *fe,

			       struct dvb_frontend_parameters *params)

{
@@ -368,6 +496,156 @@ static int tda827xa_sleep(struct dvb_frontend *fe) 
	return 0;

}



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



static void tda827xa_lna_gain(struct dvb_frontend *fe, int high,

			      struct analog_parameters *params)

{

	struct tda827x_priv *priv = fe->tuner_priv;

	unsigned char buf[] = {0x22, 0x01};

	int arg;

	struct i2c_msg msg = { .addr = priv->i2c_addr, .flags = 0,

			       .buf = buf, .len = sizeof(buf) };



	if (priv->cfg->config) {

		if (high)

			dprintk("setting LNA to high gain\n");

		else

			dprintk("setting LNA to low gain\n");

	}

	switch (*priv->cfg->config) {

	case 0: /* no LNA */

		break;

	case 1: /* switch is GPIO 0 of tda8290 */

	case 2:

		/* turn Vsync on */

		if (params->std & V4L2_STD_MN)

			arg = 1;

		else

			arg = 0;

		if (priv->cfg->tuner_callback)

			priv->cfg->tuner_callback(priv->i2c_adap->algo_data,

						  1, arg);

		buf[1] = high ? 0 : 1;

		if (*priv->cfg->config == 2)

			buf[1] = high ? 1 : 0;

		i2c_transfer(priv->i2c_adap, &msg, 1);

		break;

	case 3: /* switch with GPIO of saa713x */

		if (priv->cfg->tuner_callback)

			priv->cfg->tuner_callback(priv->i2c_adap->algo_data,

						  0, high);

		break;

	}

}



static int tda827xa_set_analog_params(struct dvb_frontend *fe,

				      struct analog_parameters *params)

{

	unsigned char tuner_reg[11];

	u32 N;

	int i;

	struct tda827x_priv *priv = fe->tuner_priv;

	struct i2c_msg msg = { .addr = priv->i2c_addr, .flags = 0,

			       .buf = tuner_reg, .len = sizeof(tuner_reg) };

	unsigned int freq = params->frequency;



	tda827xa_lna_gain(fe, 1, params);

	msleep(10);



	if (params->mode == V4L2_TUNER_RADIO)

		freq = freq / 1000;



	N = freq + priv->cfg->sgIF;



	i = 0;

	while (tda827xa_analog[i].lomax < N * 62500) {

		if (tda827xa_analog[i + 1].lomax == 0)

			break;

		i++;

	}



	N = N << tda827xa_analog[i].spd;



	tuner_reg[0] = 0;

	tuner_reg[1] = (unsigned char)(N>>8);

	tuner_reg[2] = (unsigned char) N;

	tuner_reg[3] = 0;

	tuner_reg[4] = 0x16;

	tuner_reg[5] = (tda827xa_analog[i].spd << 5) +

		       (tda827xa_analog[i].svco << 3) +

			tda827xa_analog[i].sbs;

	tuner_reg[6] = 0x8b + (tda827xa_analog[i].gc3 << 4);

	tuner_reg[7] = 0x1c;

	tuner_reg[8] = 4;

	tuner_reg[9] = 0x20;

	tuner_reg[10] = 0x00;

	msg.len = 11;

	i2c_transfer(priv->i2c_adap, &msg, 1);



	tuner_reg[0] = 0x90;

	tuner_reg[1] = 0xff;

	tuner_reg[2] = 0xe0;

	tuner_reg[3] = 0;

	tuner_reg[4] = 0x99 + (priv->cfg->tda827x_lpsel << 1);

	msg.len = 5;

	i2c_transfer(priv->i2c_adap, &msg, 1);



	tuner_reg[0] = 0xa0;

	tuner_reg[1] = 0xc0;

	msg.len = 2;

	i2c_transfer(priv->i2c_adap, &msg, 1);



	tuner_reg[0] = 0x30;

	tuner_reg[1] = 0x10 + tda827xa_analog[i].scr;

	i2c_transfer(priv->i2c_adap, &msg, 1);



	msg.flags = I2C_M_RD;

	i2c_transfer(priv->i2c_adap, &msg, 1);

	msg.flags = 0;

	tuner_reg[1] >>= 4;

	dprintk("AGC2 gain is: %d\n", tuner_reg[1]);

	if (tuner_reg[1] < 1)

		tda827xa_lna_gain(fe, 0, params);



	msleep(100);

	tuner_reg[0] = 0x60;

	tuner_reg[1] = 0x3c;

	i2c_transfer(priv->i2c_adap, &msg, 1);



	msleep(163);

	tuner_reg[0] = 0x50;

	tuner_reg[1] = 0x8f + (tda827xa_analog[i].gc3 << 4);

	i2c_transfer(priv->i2c_adap, &msg, 1);



	tuner_reg[0] = 0x80;

	tuner_reg[1] = 0x28;

	i2c_transfer(priv->i2c_adap, &msg, 1);



	tuner_reg[0] = 0xb0;

	tuner_reg[1] = 0x01;

	i2c_transfer(priv->i2c_adap, &msg, 1);



	tuner_reg[0] = 0xc0;

	tuner_reg[1] = 0x19 + (priv->cfg->tda827x_lpsel << 1);

	i2c_transfer(priv->i2c_adap, &msg, 1);



	priv->frequency = freq * 62500;



	return 0;

}



static void tda827xa_agcf(struct dvb_frontend *fe)

{

	struct tda827x_priv *priv = fe->tuner_priv;

	unsigned char data[] = {0x80, 0x2c};

	struct i2c_msg msg = {.addr = priv->i2c_addr, .flags = 0,

			      .buf = data, .len = 2};

	i2c_transfer(priv->i2c_adap, &msg, 1);

}



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



static int tda827x_release(struct dvb_frontend *fe)

{

	kfree(fe->tuner_priv);
@@ -430,6 +708,7 @@ static struct dvb_tuner_ops tda827xo_tuner_ops = { 
	.init = tda827x_initial_init,

	.sleep = tda827x_initial_sleep,

	.set_params = tda827xo_set_params,

	.set_analog_params = tda827xo_set_analog_params,

	.get_frequency = tda827x_get_frequency,

	.get_bandwidth = tda827x_get_bandwidth,

};
@@ -445,6 +724,7 @@ static struct dvb_tuner_ops tda827xa_tuner_ops = { 
	.init = tda827x_init,

	.sleep = tda827xa_sleep,

	.set_params = tda827xa_set_params,

	.set_analog_params = tda827xa_set_analog_params,

	.get_frequency = tda827x_get_frequency,

	.get_bandwidth = tda827x_get_bandwidth,

};
@@ -465,9 +745,11 @@ static int tda827x_probe_version(struct dvb_frontend *fe) 
		dprintk("tda827x tuner found\n");

		fe->ops.tuner_ops.init  = tda827x_init;

		fe->ops.tuner_ops.sleep = tda827xo_sleep;

		priv->cfg->agcf = tda827xo_agcf;

	} else {

		dprintk("tda827xa tuner found\n");

		memcpy(&fe->ops.tuner_ops, &tda827xa_tuner_ops, sizeof(struct dvb_tuner_ops));

		priv->cfg->agcf = tda827xa_agcf;

	}

	return 0;

}
@@ -487,17 +769,14 @@ struct dvb_frontend *tda827x_attach(struct dvb_frontend *fe, int addr, 
	priv->i2c_adap = i2c;

	priv->cfg = cfg;

	memcpy(&fe->ops.tuner_ops, &tda827xo_tuner_ops, sizeof(struct dvb_tuner_ops));



	fe->tuner_priv = priv;



	dprintk("type set to %s\n", fe->ops.tuner_ops.info.name);



	return fe;

}



EXPORT_SYMBOL(tda827x_attach);



module_param(debug, int, 0644);

MODULE_PARM_DESC(debug, "Turn on/off frontend debugging (default:off).");



MODULE_DESCRIPTION("DVB TDA827x driver");

MODULE_AUTHOR("Hartmut Hackmann <hartmut.hackmann@t-online.de>");

MODULE_AUTHOR("Michael Krufky <mkrufky@linuxtv.org>");

drivers/media/dvb/frontends/tda827x.h

+10 −0
Original line number Diff line number Diff line
@@ -29,9 +29,19 @@ 


struct tda827x_config

{

	/* saa7134 - provided callbacks */

	void (*lna_gain) (struct dvb_frontend *fe, int high);

	int (*init) (struct dvb_frontend *fe);

	int (*sleep) (struct dvb_frontend *fe);



	/* interface to tda829x driver */

	unsigned char tda827x_lpsel;

	unsigned int sgIF;



	unsigned int *config;

	int (*tuner_callback) (void *dev, int command, int arg);



	void (*agcf)(struct dvb_frontend *fe);

};

drivers/media/video/tda8290.c

+106 −460

File changed.

Preview size limit exceeded, changes collapsed.

drivers/media/video/tda8290.h

+9 −21
Original line number Diff line number Diff line
@@ -18,36 +18,24 @@ 
#define __TDA8290_H__



#include <linux/i2c.h>

#include "dvb_frontend.h"



struct tda8290_config

{

	unsigned int *lna_cfg;

	int (*tuner_callback) (void *dev, int command,int arg);

};

#include "tuner-driver.h"



#if defined(CONFIG_TUNER_TDA8290) || (defined(CONFIG_TUNER_TDA8290_MODULE) && defined(MODULE))

extern int tda8290_probe(struct i2c_adapter* i2c_adap, u8 i2c_addr);

extern int tda8290_probe(struct tuner *t);



extern struct dvb_frontend *tda8290_attach(struct dvb_frontend *fe,

					   struct i2c_adapter* i2c_adap,

					   u8 i2c_addr,

					   struct tda8290_config *cfg);

extern int tda8290_attach(struct tuner *t);

#else

static inline int tda8290_probe(struct i2c_adapter* i2c_adap, u8 i2c_addr)

static inline int tda8290_probe(struct tuner *t)

{

	printk(KERN_INFO "%s: not probed - driver disabled by Kconfig\n",

	       __FUNCTION__);

	printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __FUNCTION__);

	return -EINVAL;

}



static inline struct dvb_frontend *tda8290_attach(struct dvb_frontend *fe,

						  struct i2c_adapter* i2c_adap,

						  u8 i2c_addr,

						  struct tda8290_config *cfg)

static inline int tda8290_attach(struct tuner *t)

{

	printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __FUNCTION__);

	return NULL;

	printk(KERN_INFO "%s: not probed - driver disabled by Kconfig\n",

	       __FUNCTION__);

	return -EINVAL;

}

#endif

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