Commit 017cf012 authored by Michael Krufky's avatar Michael Krufky Committed by Mauro Carvalho Chehab
Browse files

V4L/DVB (5129): M920x: break out qt1010 tuner code into a separate file 



qt1010 is a tuner used in some other devices, so this code should be put
into a separate file so that it could be reused by other drivers.

Signed-off-by: default avatarMichael Krufky <mkrufky@linuxtv.org>
Signed-off-by: default avatarMauro Carvalho Chehab <mchehab@infradead.org>
parent 2a2bfa7d

drivers/media/dvb/dvb-usb/m920x.c

+1 −203
Original line number Diff line number Diff line
@@ -13,6 +13,7 @@ 


#include "mt352.h"

#include "mt352_priv.h"

#include "qt1010.h"



/* debug */

int dvb_usb_m920x_debug;
@@ -226,209 +227,6 @@ static int megasky_mt352_demod_init(struct dvb_frontend *fe) 


struct mt352_state;



#define W 0

#define R 1

/* Not actual hw limits. */

#define QT1010_MIN_STEP 2000000

#define QT1010_MIN_FREQ 48000000



int qt1010_set_params(struct dvb_frontend *fe, struct dvb_frontend_parameters *params, u8 *buf, int buf_len)

{

	int i;

	int div, mod;

	struct {

		u8 read, reg, value;

	} rd[46] = {	{ W, 0x01, 0x80 },

			{ W, 0x02, 0x3f },

			{ W, 0x05, 0xff }, /* c */

			{ W, 0x06, 0x44 },

			{ W, 0x07, 0xff }, /* c */

			{ W, 0x08, 0x08 },

			{ W, 0x09, 0xff }, /* c */

			{ W, 0x0a, 0xff }, /* c */

			{ W, 0x0b, 0xff }, /* c */

			{ W, 0x0c, 0xe1 },

			{ W, 0x1a, 0xff }, /* 10 c */

			{ W, 0x1b, 0x00 },

			{ W, 0x1c, 0x89 },

			{ W, 0x11, 0xff }, /* c */

			{ W, 0x12, 0x91 },

			{ W, 0x22, 0xff }, /* c */

			{ W, 0x1e, 0x00 },

			{ W, 0x1e, 0xd0 },

			{ R, 0x22, 0xff }, /* c read */

			{ W, 0x1e, 0x00 },

			{ R, 0x05, 0xff }, /* 20 c read */

			{ R, 0x22, 0xff }, /* c read */

			{ W, 0x23, 0xd0 },

			{ W, 0x1e, 0x00 },

			{ W, 0x1e, 0xe0 },

			{ R, 0x23, 0xff }, /* c read */

			{ W, 0x1e, 0x00 },

			{ W, 0x24, 0xd0 },

			{ W, 0x1e, 0x00 },

			{ W, 0x1e, 0xf0 },

			{ R, 0x24, 0xff }, /* 30 c read */

			{ W, 0x1e, 0x00 },

			{ W, 0x14, 0x7f },

			{ W, 0x15, 0x7f },

			{ W, 0x05, 0xff }, /* c */

			{ W, 0x06, 0x00 },

			{ W, 0x15, 0x1f },

			{ W, 0x16, 0xff },

			{ W, 0x18, 0xff },

			{ W, 0x1f, 0xff }, /* c */

			{ W, 0x20, 0xff }, /* 40 c */

			{ W, 0x21, 0x53 },

			{ W, 0x25, 0xbd },

			{ W, 0x26, 0x15 },

			{ W, 0x02, 0x00 },

			{ W, 0x01, 0x00 },

			};

	struct i2c_msg msg;

	struct dvb_usb_device *d = fe->dvb->priv;

	unsigned long freq = params->frequency;



	if (freq % QT1010_MIN_STEP)

		deb_rc("frequency not supported.\n");



	(void) buf;

	(void) buf_len;



	div = (freq - QT1010_MIN_FREQ) / QT1010_MIN_STEP;

	mod = (div + 16 - 9) % 16;



	/* 0x5 */

	if (div >= 377)

		rd[2].value = 0x74;

	else if (div >=  265)

		rd[2].value = 0x54;

	else if (div >=  121)

		rd[2].value = 0x34;

	else

		rd[2].value = 0x14;



	/* 0x7 */

	rd[4].value = (((freq - QT1010_MIN_FREQ) / 1000000) * 9975 + 12960000) / 320000;



	/* 09 */

	if (mod < 4)

		rd[6].value = 0x1d;

	else

		rd[6].value = 0x1c;



	/* 0a */

	if (mod < 2)

		rd[7].value = 0x09;

	else if (mod < 4)

		rd[7].value = 0x08;

	else if (mod < 6)

		rd[7].value = 0x0f;

	else if (mod < 8)

		rd[7].value = 0x0e;

	else if (mod < 10)

		rd[7].value = 0x0d;

	else if (mod < 12)

		rd[7].value = 0x0c;

	else if (mod < 14)

		rd[7].value = 0x0b;

	else

		rd[7].value = 0x0a;



	/* 0b */

	if (div & 1)

		rd[8].value = 0x45;

	else

		rd[8].value = 0x44;



	/* 1a */

	if (div & 1)

		rd[10].value = 0x78;

	else

		rd[10].value = 0xf8;



	/* 11 */

	if (div >= 265)

		rd[13].value = 0xf9;

	else if (div >=  121)

		rd[13].value = 0xfd;

	else

		rd[13].value = 0xf9;



	/* 22 */

	if (div < 201)

		rd[15].value = 0xd0;

	else if (div < 217)

		rd[15].value = 0xd3;

	else if (div < 233)

		rd[15].value = 0xd6;

	else if (div < 249)

		rd[15].value = 0xd9;

	else if (div < 265)

		rd[15].value = 0xda;

	else

		rd[15].value = 0xd0;



	/* 05 */

	if (div >= 377)

		rd[34].value = 0x70;

	else if (div >=  265)

		rd[34].value = 0x50;

	else if (div >=  121)

		rd[34].value = 0x30;

	else

		rd[34].value = 0x10;



	/* 1f */

	if (mod < 4)

		rd[39].value = 0x64;

	else if (mod < 6)

		rd[39].value = 0x66;

	else if (mod < 8)

		rd[39].value = 0x67;

	else if (mod < 12)

		rd[39].value = 0x68;

	else if (mod < 14)

		rd[39].value = 0x69;

	else

		rd[39].value = 0x6a;



	/* 20 */

	if (mod < 4)

		rd[40].value = 0x10;

	else if (mod < 6)

		rd[40].value = 0x11;

	else if (mod < 10)

		rd[40].value = 0x12;

	else if (mod < 12)

		rd[40].value = 0x13;

	else if (mod < 14)

		rd[40].value = 0x14;

	else

		rd[40].value = 0x15;



	deb_rc("Now tuning... ");

	for (i = 0; i < sizeof(rd) / sizeof(*rd); i++) {

		if (rd[i].read)

			continue;



		msg.flags = 0;

		msg.len = 2;

		msg.addr = 0xc4;

		msg.buf = &rd[i].reg;



		if (i2c_transfer(&d->i2c_adap, &msg, 1) != 1) {

			deb_rc("tuner write failed\n");

			return -EIO;

		}

	}

	deb_rc("done\n");



	return 0;

}

#undef W

#undef R



static struct mt352_config megasky_mt352_config = {

	.demod_address = 0x1e,

	.demod_init = megasky_mt352_demod_init,

drivers/media/dvb/frontends/qt1010.h

0 → 100644
+221 −0
Original line number Diff line number Diff line 
/*

 *  qt1010.h - DVB-T Tuner support

 *

 *  This program is free software; you can redistribute it and/or modify

 *  it under the terms of the GNU General Public License as published by

 *  the Free Software Foundation; either version 2 of the License, or

 *  (at your option) any later version.

 *

 *  This program is distributed in the hope that it will be useful,

 *  but WITHOUT ANY WARRANTY; without even the implied warranty of

 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

 *  GNU General Public License for more details.

 *

 *  You should have received a copy of the GNU General Public License

 *  along with this program; if not, write to the Free Software

 *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.

 */



#ifndef _QT1010_H_

#define _QT1010_H_



#define QT1010_W 0

#define QT1010_R 1

/* Not actual hw limits. */

#define QT1010_MIN_STEP 2000000

#define QT1010_MIN_FREQ 48000000



static int qt1010_set_params(struct dvb_frontend *fe, struct dvb_frontend_parameters *params, u8 *buf, int buf_len)

{

	int i;

	int div, mod;

	struct {

		u8 read, reg, value;

	} rd[46] = {	{ QT1010_W, 0x01, 0x80 },

			{ QT1010_W, 0x02, 0x3f },

			{ QT1010_W, 0x05, 0xff }, /* c */

			{ QT1010_W, 0x06, 0x44 },

			{ QT1010_W, 0x07, 0xff }, /* c */

			{ QT1010_W, 0x08, 0x08 },

			{ QT1010_W, 0x09, 0xff }, /* c */

			{ QT1010_W, 0x0a, 0xff }, /* c */

			{ QT1010_W, 0x0b, 0xff }, /* c */

			{ QT1010_W, 0x0c, 0xe1 },

			{ QT1010_W, 0x1a, 0xff }, /* 10 c */

			{ QT1010_W, 0x1b, 0x00 },

			{ QT1010_W, 0x1c, 0x89 },

			{ QT1010_W, 0x11, 0xff }, /* c */

			{ QT1010_W, 0x12, 0x91 },

			{ QT1010_W, 0x22, 0xff }, /* c */

			{ QT1010_W, 0x1e, 0x00 },

			{ QT1010_W, 0x1e, 0xd0 },

			{ QT1010_R, 0x22, 0xff }, /* c read */

			{ QT1010_W, 0x1e, 0x00 },

			{ QT1010_R, 0x05, 0xff }, /* 20 c read */

			{ QT1010_R, 0x22, 0xff }, /* c read */

			{ QT1010_W, 0x23, 0xd0 },

			{ QT1010_W, 0x1e, 0x00 },

			{ QT1010_W, 0x1e, 0xe0 },

			{ QT1010_R, 0x23, 0xff }, /* c read */

			{ QT1010_W, 0x1e, 0x00 },

			{ QT1010_W, 0x24, 0xd0 },

			{ QT1010_W, 0x1e, 0x00 },

			{ QT1010_W, 0x1e, 0xf0 },

			{ QT1010_R, 0x24, 0xff }, /* 30 c read */

			{ QT1010_W, 0x1e, 0x00 },

			{ QT1010_W, 0x14, 0x7f },

			{ QT1010_W, 0x15, 0x7f },

			{ QT1010_W, 0x05, 0xff }, /* c */

			{ QT1010_W, 0x06, 0x00 },

			{ QT1010_W, 0x15, 0x1f },

			{ QT1010_W, 0x16, 0xff },

			{ QT1010_W, 0x18, 0xff },

			{ QT1010_W, 0x1f, 0xff }, /* c */

			{ QT1010_W, 0x20, 0xff }, /* 40 c */

			{ QT1010_W, 0x21, 0x53 },

			{ QT1010_W, 0x25, 0xbd },

			{ QT1010_W, 0x26, 0x15 },

			{ QT1010_W, 0x02, 0x00 },

			{ QT1010_W, 0x01, 0x00 },

			};

	struct i2c_msg msg;

	struct dvb_usb_device *d = fe->dvb->priv;

	unsigned long freq = params->frequency;



	if (freq % QT1010_MIN_STEP)

		printk("frequency not supported.\n");



	(void) buf;

	(void) buf_len;



	div = (freq - QT1010_MIN_FREQ) / QT1010_MIN_STEP;

	mod = (div + 16 - 9) % 16;



	/* 0x5 */

	if (div >= 377)

		rd[2].value = 0x74;

	else if (div >=  265)

		rd[2].value = 0x54;

	else if (div >=  121)

		rd[2].value = 0x34;

	else

		rd[2].value = 0x14;



	/* 0x7 */

	rd[4].value = (((freq - QT1010_MIN_FREQ) / 1000000) * 9975 + 12960000) / 320000;



	/* 09 */

	if (mod < 4)

		rd[6].value = 0x1d;

	else

		rd[6].value = 0x1c;



	/* 0a */

	if (mod < 2)

		rd[7].value = 0x09;

	else if (mod < 4)

		rd[7].value = 0x08;

	else if (mod < 6)

		rd[7].value = 0x0f;

	else if (mod < 8)

		rd[7].value = 0x0e;

	else if (mod < 10)

		rd[7].value = 0x0d;

	else if (mod < 12)

		rd[7].value = 0x0c;

	else if (mod < 14)

		rd[7].value = 0x0b;

	else

		rd[7].value = 0x0a;



	/* 0b */

	if (div & 1)

		rd[8].value = 0x45;

	else

		rd[8].value = 0x44;



	/* 1a */

	if (div & 1)

		rd[10].value = 0x78;

	else

		rd[10].value = 0xf8;



	/* 11 */

	if (div >= 265)

		rd[13].value = 0xf9;

	else if (div >=  121)

		rd[13].value = 0xfd;

	else

		rd[13].value = 0xf9;



	/* 22 */

	if (div < 201)

		rd[15].value = 0xd0;

	else if (div < 217)

		rd[15].value = 0xd3;

	else if (div < 233)

		rd[15].value = 0xd6;

	else if (div < 249)

		rd[15].value = 0xd9;

	else if (div < 265)

		rd[15].value = 0xda;

	else

		rd[15].value = 0xd0;



	/* 05 */

	if (div >= 377)

		rd[34].value = 0x70;

	else if (div >=  265)

		rd[34].value = 0x50;

	else if (div >=  121)

		rd[34].value = 0x30;

	else

		rd[34].value = 0x10;



	/* 1f */

	if (mod < 4)

		rd[39].value = 0x64;

	else if (mod < 6)

		rd[39].value = 0x66;

	else if (mod < 8)

		rd[39].value = 0x67;

	else if (mod < 12)

		rd[39].value = 0x68;

	else if (mod < 14)

		rd[39].value = 0x69;

	else

		rd[39].value = 0x6a;



	/* 20 */

	if (mod < 4)

		rd[40].value = 0x10;

	else if (mod < 6)

		rd[40].value = 0x11;

	else if (mod < 10)

		rd[40].value = 0x12;

	else if (mod < 12)

		rd[40].value = 0x13;

	else if (mod < 14)

		rd[40].value = 0x14;

	else

		rd[40].value = 0x15;



	for (i = 0; i < sizeof(rd) / sizeof(*rd); i++) {

		if (rd[i].read)

			continue;



		msg.flags = 0;

		msg.len = 2;

		msg.addr = 0xc4;

		msg.buf = &rd[i].reg;



		if (i2c_transfer(&d->i2c_adap, &msg, 1) != 1) {

			printk("tuner write failed\n");

			return -EIO;

		}

	}



	return 0;

}



#endif