[mirror_ubuntu-jammy-kernel.git] / drivers / media / dvb / frontends / dvb-pll.c

/*
 * descriptions + helper functions for simple dvb plls.
 *
 * (c) 2004 Gerd Knorr <kraxel@bytesex.org> [SuSE Labs]
 *
 *  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.
 */

#include <linux/module.h>
#include <linux/dvb/frontend.h>
#include <asm/types.h>

#include "dvb-pll.h"

/* ----------------------------------------------------------- */
/* descriptions                                                */

struct dvb_pll_desc dvb_pll_thomson_dtt7579 = {
	.name  = "Thomson dtt7579",
	.min   = 177000000,
	.max   = 858000000,
	.count = 5,
	.entries = {
		{          0, 36166667, 166666, 0xb4, 0x03 }, /* go sleep */
		{  443250000, 36166667, 166666, 0xb4, 0x02 },
		{  542000000, 36166667, 166666, 0xb4, 0x08 },
		{  771000000, 36166667, 166666, 0xbc, 0x08 },
		{  999999999, 36166667, 166666, 0xf4, 0x08 },
	},
};
EXPORT_SYMBOL(dvb_pll_thomson_dtt7579);

struct dvb_pll_desc dvb_pll_thomson_dtt7610 = {
	.name  = "Thomson dtt7610",
	.min   =  44000000,
	.max   = 958000000,
	.count = 3,
	.entries = {
		{ 157250000, 44000000, 62500, 0x8e, 0x39 },
		{ 454000000, 44000000, 62500, 0x8e, 0x3a },
		{ 999999999, 44000000, 62500, 0x8e, 0x3c },
	},
};
EXPORT_SYMBOL(dvb_pll_thomson_dtt7610);

static void thomson_dtt759x_bw(u8 *buf, u32 freq, int bandwidth)
{
	if (BANDWIDTH_7_MHZ == bandwidth)
		buf[3] |= 0x10;
}

struct dvb_pll_desc dvb_pll_thomson_dtt759x = {
	.name  = "Thomson dtt759x",
	.min   = 177000000,
	.max   = 896000000,
	.setbw = thomson_dtt759x_bw,
	.count = 6,
	.entries = {
		{          0, 36166667, 166666, 0x84, 0x03 },
		{  264000000, 36166667, 166666, 0xb4, 0x02 },
		{  470000000, 36166667, 166666, 0xbc, 0x02 },
		{  735000000, 36166667, 166666, 0xbc, 0x08 },
		{  835000000, 36166667, 166666, 0xf4, 0x08 },
		{  999999999, 36166667, 166666, 0xfc, 0x08 },
	},
};
EXPORT_SYMBOL(dvb_pll_thomson_dtt759x);

struct dvb_pll_desc dvb_pll_lg_z201 = {
	.name  = "LG z201",
	.min   = 174000000,
	.max   = 862000000,
	.count = 6,
	.entries = {
		{          0, 36166667, 166666, 0xbc, 0x03 },
		{  157500000, 36166667, 166666, 0xbc, 0x01 },
		{  443250000, 36166667, 166666, 0xbc, 0x02 },
		{  542000000, 36166667, 166666, 0xbc, 0x04 },
		{  830000000, 36166667, 166666, 0xf4, 0x04 },
		{  999999999, 36166667, 166666, 0xfc, 0x04 },
	},
};
EXPORT_SYMBOL(dvb_pll_lg_z201);

struct dvb_pll_desc dvb_pll_microtune_4042 = {
	.name  = "Microtune 4042 FI5",
	.min   =  57000000,
	.max   = 858000000,
	.count = 3,
	.entries = {
		{ 162000000, 44000000, 62500, 0x8e, 0xa1 },
		{ 457000000, 44000000, 62500, 0x8e, 0x91 },
		{ 999999999, 44000000, 62500, 0x8e, 0x31 },
	},
};
EXPORT_SYMBOL(dvb_pll_microtune_4042);

struct dvb_pll_desc dvb_pll_thomson_dtt761x = {
	/* DTT 7611 7611A 7612 7613 7613A 7614 7615 7615A */
	.name  = "Thomson dtt761x",
	.min   =  57000000,
	.max   = 863000000,
	.count = 3,
	.entries = {
		{ 147000000, 44000000, 62500, 0x8e, 0x39 },
		{ 417000000, 44000000, 62500, 0x8e, 0x3a },
		{ 999999999, 44000000, 62500, 0x8e, 0x3c },
	},
};
EXPORT_SYMBOL(dvb_pll_thomson_dtt761x);

struct dvb_pll_desc dvb_pll_unknown_1 = {
	.name  = "unknown 1", /* used by dntv live dvb-t */
	.min   = 174000000,
	.max   = 862000000,
	.count = 9,
	.entries = {
		{  150000000, 36166667, 166666, 0xb4, 0x01 },
		{  173000000, 36166667, 166666, 0xbc, 0x01 },
		{  250000000, 36166667, 166666, 0xb4, 0x02 },
		{  400000000, 36166667, 166666, 0xbc, 0x02 },
		{  420000000, 36166667, 166666, 0xf4, 0x02 },
		{  470000000, 36166667, 166666, 0xfc, 0x02 },
		{  600000000, 36166667, 166666, 0xbc, 0x08 },
		{  730000000, 36166667, 166666, 0xf4, 0x08 },
		{  999999999, 36166667, 166666, 0xfc, 0x08 },
	},
};
EXPORT_SYMBOL(dvb_pll_unknown_1);

/* Infineon TUA6010XS
 * used in Thomson Cable Tuner
 */
struct dvb_pll_desc dvb_pll_tua6010xs = {
	.name  = "Infineon TUA6010XS",
	.min   =  44250000,
	.max   = 858000000,
	.count = 3,
	.entries = {
		{  115750000, 36125000, 62500, 0x8e, 0x03 },
		{  403250000, 36125000, 62500, 0x8e, 0x06 },
		{  999999999, 36125000, 62500, 0x8e, 0x85 },
	},
};
EXPORT_SYMBOL(dvb_pll_tua6010xs);

/* Panasonic env57h1xd5 (some Philips PLL ?) */
struct dvb_pll_desc dvb_pll_env57h1xd5 = {
	.name  = "Panasonic ENV57H1XD5",
	.min   =  44250000,
	.max   = 858000000,
	.count = 4,
	.entries = {
		{  153000000, 36291666, 166666, 0xc2, 0x41 },
		{  470000000, 36291666, 166666, 0xc2, 0x42 },
		{  526000000, 36291666, 166666, 0xc2, 0x84 },
		{  999999999, 36291666, 166666, 0xc2, 0xa4 },
	},
};
EXPORT_SYMBOL(dvb_pll_env57h1xd5);

/* Philips TDA6650/TDA6651
 * used in Panasonic ENV77H11D5
 */
static void tda665x_bw(u8 *buf, u32 freq, int bandwidth)
{
	if (bandwidth == BANDWIDTH_8_MHZ)
		buf[3] |= 0x08;
}

struct dvb_pll_desc dvb_pll_tda665x = {
	.name  = "Philips TDA6650/TDA6651",
	.min   =  44250000,
	.max   = 858000000,
	.setbw = tda665x_bw,
	.count = 12,
	.entries = {
		{   93834000, 36249333, 166667, 0xca, 0x61 /* 011 0 0 0  01 */ },
		{  123834000, 36249333, 166667, 0xca, 0xa1 /* 101 0 0 0  01 */ },
		{  161000000, 36249333, 166667, 0xca, 0xa1 /* 101 0 0 0  01 */ },
		{  163834000, 36249333, 166667, 0xca, 0xc2 /* 110 0 0 0  10 */ },
		{  253834000, 36249333, 166667, 0xca, 0x62 /* 011 0 0 0  10 */ },
		{  383834000, 36249333, 166667, 0xca, 0xa2 /* 101 0 0 0  10 */ },
		{  443834000, 36249333, 166667, 0xca, 0xc2 /* 110 0 0 0  10 */ },
		{  444000000, 36249333, 166667, 0xca, 0xc3 /* 110 0 0 0  11 */ },
		{  583834000, 36249333, 166667, 0xca, 0x63 /* 011 0 0 0  11 */ },
		{  793834000, 36249333, 166667, 0xca, 0xa3 /* 101 0 0 0  11 */ },
		{  444834000, 36249333, 166667, 0xca, 0xc3 /* 110 0 0 0  11 */ },
		{  861000000, 36249333, 166667, 0xca, 0xe3 /* 111 0 0 0  11 */ },
	}
};
EXPORT_SYMBOL(dvb_pll_tda665x);

/* Infineon TUA6034
 * used in LG TDTP E102P
 */
static void tua6034_bw(u8 *buf, u32 freq, int bandwidth)
{
	if (BANDWIDTH_7_MHZ != bandwidth)
		buf[3] |= 0x08;
}

struct dvb_pll_desc dvb_pll_tua6034 = {
	.name  = "Infineon TUA6034",
	.min   =  44250000,
	.max   = 858000000,
	.count = 3,
	.setbw = tua6034_bw,
	.entries = {
		{  174500000, 36166667, 62500, 0xce, 0x01 },
		{  230000000, 36166667, 62500, 0xce, 0x02 },
		{  999999999, 36166667, 62500, 0xce, 0x04 },
	},
};
EXPORT_SYMBOL(dvb_pll_tua6034);

/* Infineon TUA6034
 * used in LG TDVS-H061F, LG TDVS-H062F and LG TDVS-H064F
 */
struct dvb_pll_desc dvb_pll_lg_tdvs_h06xf = {
	.name  = "LG TDVS-H06xF",
	.min   =  54000000,
	.max   = 863000000,
	.count = 3,
	.entries = {
		{  165000000, 44000000, 62500, 0xce, 0x01 },
		{  450000000, 44000000, 62500, 0xce, 0x02 },
		{  999999999, 44000000, 62500, 0xce, 0x04 },
	},
};
EXPORT_SYMBOL(dvb_pll_lg_tdvs_h06xf);

/* Philips FMD1216ME
 * used in Medion Hybrid PCMCIA card and USB Box
 */
static void fmd1216me_bw(u8 *buf, u32 freq, int bandwidth)
{
	if (bandwidth == BANDWIDTH_8_MHZ && freq >= 158870000)
		buf[3] |= 0x08;
}

struct dvb_pll_desc dvb_pll_fmd1216me = {
	.name = "Philips FMD1216ME",
	.min = 50870000,
	.max = 858000000,
	.setbw = fmd1216me_bw,
	.count = 7,
	.entries = {
		{ 143870000, 36213333, 166667, 0xbc, 0x41 },
		{ 158870000, 36213333, 166667, 0xf4, 0x41 },
		{ 329870000, 36213333, 166667, 0xbc, 0x42 },
		{ 441870000, 36213333, 166667, 0xf4, 0x42 },
		{ 625870000, 36213333, 166667, 0xbc, 0x44 },
		{ 803870000, 36213333, 166667, 0xf4, 0x44 },
		{ 999999999, 36213333, 166667, 0xfc, 0x44 },
	}
};
EXPORT_SYMBOL(dvb_pll_fmd1216me);

/* ALPS TDED4
 * used in Nebula-Cards and USB boxes
 */
static void tded4_bw(u8 *buf, u32 freq, int bandwidth)
{
	if (bandwidth == BANDWIDTH_8_MHZ)
		buf[3] |= 0x04;
}

struct dvb_pll_desc dvb_pll_tded4 = {
	.name = "ALPS TDED4",
	.min = 47000000,
	.max = 863000000,
	.setbw = tded4_bw,
	.count = 4,
	.entries = {
		{ 153000000, 36166667, 166667, 0x85, 0x01 },
		{ 470000000, 36166667, 166667, 0x85, 0x02 },
		{ 823000000, 36166667, 166667, 0x85, 0x08 },
		{ 999999999, 36166667, 166667, 0x85, 0x88 },
	}
};
EXPORT_SYMBOL(dvb_pll_tded4);

/* ALPS TDHU2
 * used in AverTVHD MCE A180
 */
struct dvb_pll_desc dvb_pll_tdhu2 = {
	.name = "ALPS TDHU2",
	.min = 54000000,
	.max = 864000000,
	.count = 4,
	.entries = {
		{ 162000000, 44000000, 62500, 0x85, 0x01 },
		{ 426000000, 44000000, 62500, 0x85, 0x02 },
		{ 782000000, 44000000, 62500, 0x85, 0x08 },
		{ 999999999, 44000000, 62500, 0x85, 0x88 },
	}
};
EXPORT_SYMBOL(dvb_pll_tdhu2);

/* Philips TUV1236D
 * used in ATI HDTV Wonder
 */
struct dvb_pll_desc dvb_pll_tuv1236d = {
	.name  = "Philips TUV1236D",
	.min   =  54000000,
	.max   = 864000000,
	.count = 3,
	.entries = {
		{ 157250000, 44000000, 62500, 0xc6, 0x41 },
		{ 454000000, 44000000, 62500, 0xc6, 0x42 },
		{ 999999999, 44000000, 62500, 0xc6, 0x44 },
	},
};
EXPORT_SYMBOL(dvb_pll_tuv1236d);

/* Samsung TBMV30111IN / TBMV30712IN1
 * used in Air2PC ATSC - 2nd generation (nxt2002)
 */
struct dvb_pll_desc dvb_pll_samsung_tbmv = {
	.name = "Samsung TBMV30111IN / TBMV30712IN1",
	.min = 54000000,
	.max = 860000000,
	.count = 6,
	.entries = {
		{ 172000000, 44000000, 166666, 0xb4, 0x01 },
		{ 214000000, 44000000, 166666, 0xb4, 0x02 },
		{ 467000000, 44000000, 166666, 0xbc, 0x02 },
		{ 721000000, 44000000, 166666, 0xbc, 0x08 },
		{ 841000000, 44000000, 166666, 0xf4, 0x08 },
		{ 999999999, 44000000, 166666, 0xfc, 0x02 },
	}
};
EXPORT_SYMBOL(dvb_pll_samsung_tbmv);

/*
 * Philips SD1878 Tuner.
 */
struct dvb_pll_desc dvb_pll_philips_sd1878_tda8261 = {
	.name  = "Philips SD1878",
	.min   =  950000,
	.max   = 2150000,
	.count = 4,
	.entries = {
		{ 1250000, 499, 500, 0xc4, 0x00},
		{ 1550000, 499, 500, 0xc4, 0x40},
		{ 2050000, 499, 500, 0xc4, 0x80},
		{ 2150000, 499, 500, 0xc4, 0xc0},
	},
};
EXPORT_SYMBOL(dvb_pll_philips_sd1878_tda8261);

/*
 * Philips TD1316 Tuner.
 */
static void td1316_bw(u8 *buf, u32 freq, int bandwidth)
{
	u8 band;

	/* determine band */
	if (freq < 161000000)
		band = 1;
	else if (freq < 444000000)
		band = 2;
	else
		band = 4;

	buf[3] |= band;

	/* setup PLL filter */
	if (bandwidth == BANDWIDTH_8_MHZ)
		buf[3] |= 1 << 3;
}

struct dvb_pll_desc dvb_pll_philips_td1316 = {
	.name  = "Philips TD1316",
	.min   =  87000000,
	.max   = 895000000,
	.setbw = td1316_bw,
	.count = 9,
	.entries = {
		{  93834000, 36166000, 166666, 0xca, 0x60},
		{ 123834000, 36166000, 166666, 0xca, 0xa0},
		{ 163834000, 36166000, 166666, 0xca, 0xc0},
		{ 253834000, 36166000, 166666, 0xca, 0x60},
		{ 383834000, 36166000, 166666, 0xca, 0xa0},
		{ 443834000, 36166000, 166666, 0xca, 0xc0},
		{ 583834000, 36166000, 166666, 0xca, 0x60},
		{ 793834000, 36166000, 166666, 0xca, 0xa0},
		{ 858834000, 36166000, 166666, 0xca, 0xe0},
	},
};
EXPORT_SYMBOL(dvb_pll_philips_td1316);

/* FE6600 used on DViCO Hybrid */
struct dvb_pll_desc dvb_pll_thomson_fe6600 = {
	.name = "Thomson FE6600",
	.min =  44250000,
	.max = 858000000,
	.count = 4,
	.entries = {
		{ 250000000, 36213333, 166667, 0xb4, 0x12 },
		{ 455000000, 36213333, 166667, 0xfe, 0x11 },
		{ 775500000, 36213333, 166667, 0xbc, 0x18 },
		{ 999999999, 36213333, 166667, 0xf4, 0x18 },
	}
};
EXPORT_SYMBOL(dvb_pll_thomson_fe6600);

struct dvb_pll_priv {
	/* i2c details */
	int pll_i2c_address;
	struct i2c_adapter *i2c;

	/* the PLL descriptor */
	struct dvb_pll_desc *pll_desc;

	/* cached frequency/bandwidth */
	u32 frequency;
	u32 bandwidth;
};

/* ----------------------------------------------------------- */
/* code                                                        */

static int debug = 0;
module_param(debug, int, 0644);
MODULE_PARM_DESC(debug, "enable verbose debug messages");

int dvb_pll_configure(struct dvb_pll_desc *desc, u8 *buf,
		      u32 freq, int bandwidth)
{
	u32 div;
	int i;

	if (freq != 0 && (freq < desc->min || freq > desc->max))
	    return -EINVAL;

	for (i = 0; i < desc->count; i++) {
		if (freq > desc->entries[i].limit)
			continue;
		break;
	}
	if (debug)
		printk("pll: %s: freq=%d bw=%d | i=%d/%d\n",
		       desc->name, freq, bandwidth, i, desc->count);
	if (i == desc->count)
		return -EINVAL;

	div = (freq + desc->entries[i].offset) / desc->entries[i].stepsize;
	buf[0] = div >> 8;
	buf[1] = div & 0xff;
	buf[2] = desc->entries[i].config;
	buf[3] = desc->entries[i].cb;

	if (desc->setbw)
		desc->setbw(buf, freq, bandwidth);

	if (debug)
		printk("pll: %s: div=%d | buf=0x%02x,0x%02x,0x%02x,0x%02x\n",
		       desc->name, div, buf[0], buf[1], buf[2], buf[3]);

	return 0;
}
EXPORT_SYMBOL(dvb_pll_configure);

static int dvb_pll_release(struct dvb_frontend *fe)
{
	if (fe->tuner_priv)
		kfree(fe->tuner_priv);
	fe->tuner_priv = NULL;
	return 0;
}

static int dvb_pll_sleep(struct dvb_frontend *fe)
{
	struct dvb_pll_priv *priv = fe->tuner_priv;
	u8 buf[4];
	struct i2c_msg msg =
		{ .addr = priv->pll_i2c_address, .flags = 0, .buf = buf, .len = sizeof(buf) };
	int i;
	int result;

	for (i = 0; i < priv->pll_desc->count; i++) {
		if (priv->pll_desc->entries[i].limit == 0)
			break;
	}
	if (i == priv->pll_desc->count)
		return 0;

	buf[0] = 0;
	buf[1] = 0;
	buf[2] = priv->pll_desc->entries[i].config;
	buf[3] = priv->pll_desc->entries[i].cb;

	if (fe->ops->i2c_gate_ctrl)
		fe->ops->i2c_gate_ctrl(fe, 1);
	if ((result = i2c_transfer(priv->i2c, &msg, 1)) != 1) {
		return result;
	}

	return 0;
}

static int dvb_pll_set_params(struct dvb_frontend *fe, struct dvb_frontend_parameters *params)
{
	struct dvb_pll_priv *priv = fe->tuner_priv;
	u8 buf[4];
	struct i2c_msg msg =
		{ .addr = priv->pll_i2c_address, .flags = 0, .buf = buf, .len = sizeof(buf) };
	int result;
	u32 div;
	int i;
	u32 bandwidth = 0;

	if (priv->i2c == NULL)
		return -EINVAL;

	// DVBT bandwidth only just now
	if (fe->ops->info.type == FE_OFDM) {
		bandwidth = params->u.ofdm.bandwidth;
	}

	if ((result = dvb_pll_configure(priv->pll_desc, buf, params->frequency, bandwidth)) != 0)
		return result;

	if (fe->ops->i2c_gate_ctrl)
		fe->ops->i2c_gate_ctrl(fe, 1);
	if ((result = i2c_transfer(priv->i2c, &msg, 1)) != 1) {
		return result;
	}

	// calculate the frequency we set it to
	for (i = 0; i < priv->pll_desc->count; i++) {
		if (params->frequency > priv->pll_desc->entries[i].limit)
			continue;
		break;
	}
	div = (params->frequency + priv->pll_desc->entries[i].offset) / priv->pll_desc->entries[i].stepsize;
	priv->frequency = (div * priv->pll_desc->entries[i].stepsize) - priv->pll_desc->entries[i].offset;
	priv->bandwidth = bandwidth;

	return 0;
}

static int dvb_pll_calc_regs(struct dvb_frontend *fe, struct dvb_frontend_parameters *params, u8 *buf, int buf_len)
{
	struct dvb_pll_priv *priv = fe->tuner_priv;
	int result;
	u32 div;
	int i;
	u32 bandwidth = 0;

	if (buf_len < 5)
		return -EINVAL;

	// DVBT bandwidth only just now
	if (fe->ops->info.type == FE_OFDM) {
		bandwidth = params->u.ofdm.bandwidth;
	}

	if ((result = dvb_pll_configure(priv->pll_desc, buf+1, params->frequency, bandwidth)) != 0)
		return result;
	buf[0] = priv->pll_i2c_address;

	// calculate the frequency we set it to
	for (i = 0; i < priv->pll_desc->count; i++) {
		if (params->frequency > priv->pll_desc->entries[i].limit)
			continue;
		break;
	}
	div = (params->frequency + priv->pll_desc->entries[i].offset) / priv->pll_desc->entries[i].stepsize;
	priv->frequency = (div * priv->pll_desc->entries[i].stepsize) - priv->pll_desc->entries[i].offset;
	priv->bandwidth = bandwidth;

	return 5;
}

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

static int dvb_pll_get_bandwidth(struct dvb_frontend *fe, u32 *bandwidth)
{
	struct dvb_pll_priv *priv = fe->tuner_priv;
	*bandwidth = priv->bandwidth;
	return 0;
}

static struct dvb_tuner_ops dvb_pll_tuner_ops = {
	.release = dvb_pll_release,
	.sleep = dvb_pll_sleep,
	.set_params = dvb_pll_set_params,
	.calc_regs = dvb_pll_calc_regs,
	.get_frequency = dvb_pll_get_frequency,
	.get_bandwidth = dvb_pll_get_bandwidth,
};

int dvb_pll_attach(struct dvb_frontend *fe, int pll_addr, struct i2c_adapter *i2c, struct dvb_pll_desc *desc)
{
	struct dvb_pll_priv *priv = NULL;

	priv = kzalloc(sizeof(struct dvb_pll_priv), GFP_KERNEL);
	if (priv == NULL)
		return -ENOMEM;

	priv->pll_i2c_address = pll_addr;
	priv->i2c = i2c;
	priv->pll_desc = desc;

	memcpy(&fe->ops->tuner_ops, &dvb_pll_tuner_ops, sizeof(struct dvb_tuner_ops));
	strncpy(fe->ops->tuner_ops.info.name, desc->name, 128);
	fe->ops->tuner_ops.info.frequency_min = desc->min;
	fe->ops->tuner_ops.info.frequency_min = desc->max;

	fe->tuner_priv = priv;
	return 0;
}
EXPORT_SYMBOL(dvb_pll_attach);

MODULE_DESCRIPTION("dvb pll library");
MODULE_AUTHOR("Gerd Knorr");
MODULE_LICENSE("GPL");
Commit	Line	Data
1da177e4	1	/*
1da177e4 LT	2	* descriptions + helper functions for simple dvb plls.
	3	*
	4	* (c) 2004 Gerd Knorr <kraxel@bytesex.org> [SuSE Labs]
	5	*
	6	* This program is free software; you can redistribute it and/or modify
	7	* it under the terms of the GNU General Public License as published by
	8	* the Free Software Foundation; either version 2 of the License, or
	9	* (at your option) any later version.
	10	*
	11	* This program is distributed in the hope that it will be useful,
	12	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	13	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	14	* GNU General Public License for more details.
	15	*
	16	* You should have received a copy of the GNU General Public License
	17	* along with this program; if not, write to the Free Software
	18	* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
	19	*/
	20
	21	#include <linux/module.h>
	22	#include <linux/dvb/frontend.h>
	23	#include <asm/types.h>
	24
	25	#include "dvb-pll.h"
	26
	27	/* ----------------------------------------------------------- */
	28	/* descriptions */
	29
	30	struct dvb_pll_desc dvb_pll_thomson_dtt7579 = {
	31	.name = "Thomson dtt7579",
	32	.min = 177000000,
	33	.max = 858000000,
	34	.count = 5,
	35	.entries = {
	36	{ 0, 36166667, 166666, 0xb4, 0x03 }, /* go sleep */
	37	{ 443250000, 36166667, 166666, 0xb4, 0x02 },
	38	{ 542000000, 36166667, 166666, 0xb4, 0x08 },
	39	{ 771000000, 36166667, 166666, 0xbc, 0x08 },
	40	{ 999999999, 36166667, 166666, 0xf4, 0x08 },
	41	},
	42	};
	43	EXPORT_SYMBOL(dvb_pll_thomson_dtt7579);
	44
	45	struct dvb_pll_desc dvb_pll_thomson_dtt7610 = {
	46	.name = "Thomson dtt7610",
	47	.min = 44000000,
	48	.max = 958000000,
	49	.count = 3,
	50	.entries = {
	51	{ 157250000, 44000000, 62500, 0x8e, 0x39 },
	52	{ 454000000, 44000000, 62500, 0x8e, 0x3a },
	53	{ 999999999, 44000000, 62500, 0x8e, 0x3c },
	54	},
	55	};
	56	EXPORT_SYMBOL(dvb_pll_thomson_dtt7610);
	57
49dc82fd	58	static void thomson_dtt759x_bw(u8 *buf, u32 freq, int bandwidth)
1da177e4 LT	59	{
	60	if (BANDWIDTH_7_MHZ == bandwidth)
	61	buf[3] \|= 0x10;
	62	}
	63
	64	struct dvb_pll_desc dvb_pll_thomson_dtt759x = {
	65	.name = "Thomson dtt759x",
	66	.min = 177000000,
	67	.max = 896000000,
	68	.setbw = thomson_dtt759x_bw,
	69	.count = 6,
	70	.entries = {
	71	{ 0, 36166667, 166666, 0x84, 0x03 },
	72	{ 264000000, 36166667, 166666, 0xb4, 0x02 },
	73	{ 470000000, 36166667, 166666, 0xbc, 0x02 },
	74	{ 735000000, 36166667, 166666, 0xbc, 0x08 },
	75	{ 835000000, 36166667, 166666, 0xf4, 0x08 },
	76	{ 999999999, 36166667, 166666, 0xfc, 0x08 },
	77	},
	78	};
	79	EXPORT_SYMBOL(dvb_pll_thomson_dtt759x);
	80
	81	struct dvb_pll_desc dvb_pll_lg_z201 = {
	82	.name = "LG z201",
	83	.min = 174000000,
	84	.max = 862000000,
9e00e486	85	.count = 6,
1da177e4 LT	86	.entries = {
1da177e4 LT	87	{ 0, 36166667, 166666, 0xbc, 0x03 },
9e00e486 GF	88	{ 157500000, 36166667, 166666, 0xbc, 0x01 },
	89	{ 443250000, 36166667, 166666, 0xbc, 0x02 },
	90	{ 542000000, 36166667, 166666, 0xbc, 0x04 },
	91	{ 830000000, 36166667, 166666, 0xf4, 0x04 },
	92	{ 999999999, 36166667, 166666, 0xfc, 0x04 },
1da177e4 LT	93	},
	94	};
	95	EXPORT_SYMBOL(dvb_pll_lg_z201);
	96
d8667cbb MM	97	struct dvb_pll_desc dvb_pll_microtune_4042 = {
	98	.name = "Microtune 4042 FI5",
	99	.min = 57000000,
	100	.max = 858000000,
	101	.count = 3,
	102	.entries = {
	103	{ 162000000, 44000000, 62500, 0x8e, 0xa1 },
	104	{ 457000000, 44000000, 62500, 0x8e, 0x91 },
	105	{ 999999999, 44000000, 62500, 0x8e, 0x31 },
	106	},
	107	};
	108	EXPORT_SYMBOL(dvb_pll_microtune_4042);
	109
83ac8722 MK	110	struct dvb_pll_desc dvb_pll_thomson_dtt761x = {
	111	/* DTT 7611 7611A 7612 7613 7613A 7614 7615 7615A */
	112	.name = "Thomson dtt761x",
	113	.min = 57000000,
	114	.max = 863000000,
0d723c09 MK	115	.count = 3,
0d723c09 MK	116	.entries = {
83ac8722 MK	117	{ 147000000, 44000000, 62500, 0x8e, 0x39 },
83ac8722 MK	118	{ 417000000, 44000000, 62500, 0x8e, 0x3a },
0d723c09 MK	119	{ 999999999, 44000000, 62500, 0x8e, 0x3c },
	120	},
	121	};
83ac8722	122	EXPORT_SYMBOL(dvb_pll_thomson_dtt761x);
0d723c09	123
1da177e4 LT	124	struct dvb_pll_desc dvb_pll_unknown_1 = {
	125	.name = "unknown 1", /* used by dntv live dvb-t */
	126	.min = 174000000,
	127	.max = 862000000,
	128	.count = 9,
	129	.entries = {
	130	{ 150000000, 36166667, 166666, 0xb4, 0x01 },
	131	{ 173000000, 36166667, 166666, 0xbc, 0x01 },
	132	{ 250000000, 36166667, 166666, 0xb4, 0x02 },
	133	{ 400000000, 36166667, 166666, 0xbc, 0x02 },
	134	{ 420000000, 36166667, 166666, 0xf4, 0x02 },
	135	{ 470000000, 36166667, 166666, 0xfc, 0x02 },
	136	{ 600000000, 36166667, 166666, 0xbc, 0x08 },
	137	{ 730000000, 36166667, 166666, 0xf4, 0x08 },
	138	{ 999999999, 36166667, 166666, 0xfc, 0x08 },
	139	},
	140	};
	141	EXPORT_SYMBOL(dvb_pll_unknown_1);
	142
776338e1 JS	143	/* Infineon TUA6010XS
	144	* used in Thomson Cable Tuner
	145	*/
	146	struct dvb_pll_desc dvb_pll_tua6010xs = {
	147	.name = "Infineon TUA6010XS",
	148	.min = 44250000,
	149	.max = 858000000,
	150	.count = 3,
	151	.entries = {
	152	{ 115750000, 36125000, 62500, 0x8e, 0x03 },
	153	{ 403250000, 36125000, 62500, 0x8e, 0x06 },
	154	{ 999999999, 36125000, 62500, 0x8e, 0x85 },
	155	},
	156	};
	157	EXPORT_SYMBOL(dvb_pll_tua6010xs);
	158
	159	/* Panasonic env57h1xd5 (some Philips PLL ?) */
	160	struct dvb_pll_desc dvb_pll_env57h1xd5 = {
	161	.name = "Panasonic ENV57H1XD5",
	162	.min = 44250000,
	163	.max = 858000000,
	164	.count = 4,
	165	.entries = {
	166	{ 153000000, 36291666, 166666, 0xc2, 0x41 },
	167	{ 470000000, 36291666, 166666, 0xc2, 0x42 },
	168	{ 526000000, 36291666, 166666, 0xc2, 0x84 },
	169	{ 999999999, 36291666, 166666, 0xc2, 0xa4 },
	170	},
	171	};
	172	EXPORT_SYMBOL(dvb_pll_env57h1xd5);
	173
	174	/* Philips TDA6650/TDA6651
	175	* used in Panasonic ENV77H11D5
	176	*/
49dc82fd	177	static void tda665x_bw(u8 *buf, u32 freq, int bandwidth)
776338e1 JS	178	{
	179	if (bandwidth == BANDWIDTH_8_MHZ)
	180	buf[3] \|= 0x08;
	181	}
	182
	183	struct dvb_pll_desc dvb_pll_tda665x = {
	184	.name = "Philips TDA6650/TDA6651",
	185	.min = 44250000,
	186	.max = 858000000,
	187	.setbw = tda665x_bw,
	188	.count = 12,
	189	.entries = {
	190	{ 93834000, 36249333, 166667, 0xca, 0x61 /* 011 0 0 0 01 */ },
	191	{ 123834000, 36249333, 166667, 0xca, 0xa1 /* 101 0 0 0 01 */ },
	192	{ 161000000, 36249333, 166667, 0xca, 0xa1 /* 101 0 0 0 01 */ },
	193	{ 163834000, 36249333, 166667, 0xca, 0xc2 /* 110 0 0 0 10 */ },
	194	{ 253834000, 36249333, 166667, 0xca, 0x62 /* 011 0 0 0 10 */ },
	195	{ 383834000, 36249333, 166667, 0xca, 0xa2 /* 101 0 0 0 10 */ },
	196	{ 443834000, 36249333, 166667, 0xca, 0xc2 /* 110 0 0 0 10 */ },
	197	{ 444000000, 36249333, 166667, 0xca, 0xc3 /* 110 0 0 0 11 */ },
	198	{ 583834000, 36249333, 166667, 0xca, 0x63 /* 011 0 0 0 11 */ },
	199	{ 793834000, 36249333, 166667, 0xca, 0xa3 /* 101 0 0 0 11 */ },
	200	{ 444834000, 36249333, 166667, 0xca, 0xc3 /* 110 0 0 0 11 */ },
	201	{ 861000000, 36249333, 166667, 0xca, 0xe3 /* 111 0 0 0 11 */ },
	202	}
	203	};
	204	EXPORT_SYMBOL(dvb_pll_tda665x);
	205
	206	/* Infineon TUA6034
	207	* used in LG TDTP E102P
	208	*/
49dc82fd	209	static void tua6034_bw(u8 *buf, u32 freq, int bandwidth)
776338e1 JS	210	{
	211	if (BANDWIDTH_7_MHZ != bandwidth)
	212	buf[3] \|= 0x08;
	213	}
	214
	215	struct dvb_pll_desc dvb_pll_tua6034 = {
	216	.name = "Infineon TUA6034",
	217	.min = 44250000,
	218	.max = 858000000,
	219	.count = 3,
	220	.setbw = tua6034_bw,
	221	.entries = {
	222	{ 174500000, 36166667, 62500, 0xce, 0x01 },
	223	{ 230000000, 36166667, 62500, 0xce, 0x02 },
	224	{ 999999999, 36166667, 62500, 0xce, 0x04 },
	225	},
	226	};
	227	EXPORT_SYMBOL(dvb_pll_tua6034);
	228
1963c907	229	/* Infineon TUA6034
d9e12f25	230	* used in LG TDVS-H061F, LG TDVS-H062F and LG TDVS-H064F
1963c907	231	*/
30fa61a5	232	struct dvb_pll_desc dvb_pll_lg_tdvs_h06xf = {
d9e12f25	233	.name = "LG TDVS-H06xF",
1963c907 MK	234	.min = 54000000,
	235	.max = 863000000,
	236	.count = 3,
	237	.entries = {
dd31d5ac RS	238	{ 165000000, 44000000, 62500, 0xce, 0x01 },
dd31d5ac RS	239	{ 450000000, 44000000, 62500, 0xce, 0x02 },
1963c907 MK	240	{ 999999999, 44000000, 62500, 0xce, 0x04 },
	241	},
	242	};
30fa61a5	243	EXPORT_SYMBOL(dvb_pll_lg_tdvs_h06xf);
1963c907	244
49dc82fd PB	245	/* Philips FMD1216ME
	246	* used in Medion Hybrid PCMCIA card and USB Box
	247	*/
	248	static void fmd1216me_bw(u8 *buf, u32 freq, int bandwidth)
	249	{
	250	if (bandwidth == BANDWIDTH_8_MHZ && freq >= 158870000)
	251	buf[3] \|= 0x08;
	252	}
	253
	254	struct dvb_pll_desc dvb_pll_fmd1216me = {
0589b8e4	255	.name = "Philips FMD1216ME",
49dc82fd PB	256	.min = 50870000,
	257	.max = 858000000,
	258	.setbw = fmd1216me_bw,
	259	.count = 7,
	260	.entries = {
	261	{ 143870000, 36213333, 166667, 0xbc, 0x41 },
	262	{ 158870000, 36213333, 166667, 0xf4, 0x41 },
	263	{ 329870000, 36213333, 166667, 0xbc, 0x42 },
	264	{ 441870000, 36213333, 166667, 0xf4, 0x42 },
	265	{ 625870000, 36213333, 166667, 0xbc, 0x44 },
	266	{ 803870000, 36213333, 166667, 0xf4, 0x44 },
	267	{ 999999999, 36213333, 166667, 0xfc, 0x44 },
	268	}
	269	};
	270	EXPORT_SYMBOL(dvb_pll_fmd1216me);
	271
0589b8e4 PB	272	/* ALPS TDED4
	273	* used in Nebula-Cards and USB boxes
	274	*/
	275	static void tded4_bw(u8 *buf, u32 freq, int bandwidth)
	276	{
	277	if (bandwidth == BANDWIDTH_8_MHZ)
	278	buf[3] \|= 0x04;
	279	}
	280
	281	struct dvb_pll_desc dvb_pll_tded4 = {
	282	.name = "ALPS TDED4",
	283	.min = 47000000,
	284	.max = 863000000,
	285	.setbw = tded4_bw,
	286	.count = 4,
	287	.entries = {
	288	{ 153000000, 36166667, 166667, 0x85, 0x01 },
	289	{ 470000000, 36166667, 166667, 0x85, 0x02 },
	290	{ 823000000, 36166667, 166667, 0x85, 0x08 },
	291	{ 999999999, 36166667, 166667, 0x85, 0x88 },
	292	}
	293	};
	294	EXPORT_SYMBOL(dvb_pll_tded4);
	295
147418c9 KL	296	/* ALPS TDHU2
	297	* used in AverTVHD MCE A180
	298	*/
	299	struct dvb_pll_desc dvb_pll_tdhu2 = {
	300	.name = "ALPS TDHU2",
	301	.min = 54000000,
	302	.max = 864000000,
	303	.count = 4,
	304	.entries = {
	305	{ 162000000, 44000000, 62500, 0x85, 0x01 },
	306	{ 426000000, 44000000, 62500, 0x85, 0x02 },
	307	{ 782000000, 44000000, 62500, 0x85, 0x08 },
	308	{ 999999999, 44000000, 62500, 0x85, 0x88 },
	309	}
	310	};
	311	EXPORT_SYMBOL(dvb_pll_tdhu2);
	312
	313	/* Philips TUV1236D
	314	* used in ATI HDTV Wonder
	315	*/
	316	struct dvb_pll_desc dvb_pll_tuv1236d = {
	317	.name = "Philips TUV1236D",
04a45929	318	.min = 54000000,
147418c9 KL	319	.max = 864000000,
	320	.count = 3,
	321	.entries = {
	322	{ 157250000, 44000000, 62500, 0xc6, 0x41 },
	323	{ 454000000, 44000000, 62500, 0xc6, 0x42 },
	324	{ 999999999, 44000000, 62500, 0xc6, 0x44 },
	325	},
	326	};
	327	EXPORT_SYMBOL(dvb_pll_tuv1236d);
	328
d76a6179	329	/* Samsung TBMV30111IN / TBMV30712IN1
147418c9 KL	330	* used in Air2PC ATSC - 2nd generation (nxt2002)
147418c9 KL	331	*/
28f3d4b3 MK	332	struct dvb_pll_desc dvb_pll_samsung_tbmv = {
28f3d4b3 MK	333	.name = "Samsung TBMV30111IN / TBMV30712IN1",
147418c9 KL	334	.min = 54000000,
147418c9 KL	335	.max = 860000000,
17c37efb	336	.count = 6,
147418c9 KL	337	.entries = {
	338	{ 172000000, 44000000, 166666, 0xb4, 0x01 },
	339	{ 214000000, 44000000, 166666, 0xb4, 0x02 },
	340	{ 467000000, 44000000, 166666, 0xbc, 0x02 },
	341	{ 721000000, 44000000, 166666, 0xbc, 0x08 },
	342	{ 841000000, 44000000, 166666, 0xf4, 0x08 },
	343	{ 999999999, 44000000, 166666, 0xfc, 0x02 },
	344	}
	345	};
28f3d4b3	346	EXPORT_SYMBOL(dvb_pll_samsung_tbmv);
147418c9	347
f8bf134d RP	348	/*
	349	* Philips SD1878 Tuner.
	350	*/
	351	struct dvb_pll_desc dvb_pll_philips_sd1878_tda8261 = {
	352	.name = "Philips SD1878",
	353	.min = 950000,
	354	.max = 2150000,
	355	.count = 4,
	356	.entries = {
	357	{ 1250000, 499, 500, 0xc4, 0x00},
	358	{ 1550000, 499, 500, 0xc4, 0x40},
	359	{ 2050000, 499, 500, 0xc4, 0x80},
	360	{ 2150000, 499, 500, 0xc4, 0xc0},
	361	},
	362	};
	363	EXPORT_SYMBOL(dvb_pll_philips_sd1878_tda8261);
	364
a78d0bfa JAR	365	/*
	366	* Philips TD1316 Tuner.
	367	*/
	368	static void td1316_bw(u8 *buf, u32 freq, int bandwidth)
	369	{
	370	u8 band;
	371
	372	/* determine band */
	373	if (freq < 161000000)
	374	band = 1;
	375	else if (freq < 444000000)
	376	band = 2;
	377	else
	378	band = 4;
	379
	380	buf[3] \|= band;
	381
	382	/* setup PLL filter */
	383	if (bandwidth == BANDWIDTH_8_MHZ)
	384	buf[3] \|= 1 << 3;
	385	}
	386
	387	struct dvb_pll_desc dvb_pll_philips_td1316 = {
	388	.name = "Philips TD1316",
	389	.min = 87000000,
	390	.max = 895000000,
	391	.setbw = td1316_bw,
	392	.count = 9,
	393	.entries = {
	394	{ 93834000, 36166000, 166666, 0xca, 0x60},
	395	{ 123834000, 36166000, 166666, 0xca, 0xa0},
	396	{ 163834000, 36166000, 166666, 0xca, 0xc0},
	397	{ 253834000, 36166000, 166666, 0xca, 0x60},
	398	{ 383834000, 36166000, 166666, 0xca, 0xa0},
	399	{ 443834000, 36166000, 166666, 0xca, 0xc0},
	400	{ 583834000, 36166000, 166666, 0xca, 0x60},
	401	{ 793834000, 36166000, 166666, 0xca, 0xa0},
	402	{ 858834000, 36166000, 166666, 0xca, 0xe0},
	403	},
	404	};
	405	EXPORT_SYMBOL(dvb_pll_philips_td1316);
	406
780dfef3	407	/* FE6600 used on DViCO Hybrid */
91ae3299 MK	408	struct dvb_pll_desc dvb_pll_thomson_fe6600 = {
91ae3299 MK	409	.name = "Thomson FE6600",
780dfef3 CP	410	.min = 44250000,
	411	.max = 858000000,
	412	.count = 4,
	413	.entries = {
	414	{ 250000000, 36213333, 166667, 0xb4, 0x12 },
	415	{ 455000000, 36213333, 166667, 0xfe, 0x11 },
	416	{ 775500000, 36213333, 166667, 0xbc, 0x18 },
	417	{ 999999999, 36213333, 166667, 0xf4, 0x18 },
	418	}
	419	};
91ae3299	420	EXPORT_SYMBOL(dvb_pll_thomson_fe6600);
780dfef3	421
272bc4db AQ	422	struct dvb_pll_priv {
	423	/* i2c details */
	424	int pll_i2c_address;
	425	struct i2c_adapter *i2c;
	426
	427	/* the PLL descriptor */
	428	struct dvb_pll_desc *pll_desc;
	429
	430	/* cached frequency/bandwidth */
	431	u32 frequency;
	432	u32 bandwidth;
	433	};
	434
1da177e4 LT	435	/* ----------------------------------------------------------- */
	436	/* code */
	437
	438	static int debug = 0;
	439	module_param(debug, int, 0644);
	440	MODULE_PARM_DESC(debug, "enable verbose debug messages");
	441
	442	int dvb_pll_configure(struct dvb_pll_desc desc, u8 buf,
	443	u32 freq, int bandwidth)
	444	{
	445	u32 div;
	446	int i;
	447
	448	if (freq != 0 && (freq < desc->min \|\| freq > desc->max))
	449	return -EINVAL;
	450
	451	for (i = 0; i < desc->count; i++) {
	452	if (freq > desc->entries[i].limit)
	453	continue;
	454	break;
	455	}
	456	if (debug)
	457	printk("pll: %s: freq=%d bw=%d \| i=%d/%d\n",
	458	desc->name, freq, bandwidth, i, desc->count);
272bc4db AQ	459	if (i == desc->count)
272bc4db AQ	460	return -EINVAL;
1da177e4 LT	461
	462	div = (freq + desc->entries[i].offset) / desc->entries[i].stepsize;
	463	buf[0] = div >> 8;
	464	buf[1] = div & 0xff;
ab66b22f MK	465	buf[2] = desc->entries[i].config;
ab66b22f MK	466	buf[3] = desc->entries[i].cb;
1da177e4 LT	467
1da177e4 LT	468	if (desc->setbw)
49dc82fd	469	desc->setbw(buf, freq, bandwidth);
1da177e4 LT	470
	471	if (debug)
	472	printk("pll: %s: div=%d \| buf=0x%02x,0x%02x,0x%02x,0x%02x\n",
	473	desc->name, div, buf[0], buf[1], buf[2], buf[3]);
	474
	475	return 0;
	476	}
	477	EXPORT_SYMBOL(dvb_pll_configure);
	478
272bc4db AQ	479	static int dvb_pll_release(struct dvb_frontend *fe)
	480	{
	481	if (fe->tuner_priv)
	482	kfree(fe->tuner_priv);
	483	fe->tuner_priv = NULL;
	484	return 0;
	485	}
	486
	487	static int dvb_pll_sleep(struct dvb_frontend *fe)
	488	{
	489	struct dvb_pll_priv *priv = fe->tuner_priv;
	490	u8 buf[4];
	491	struct i2c_msg msg =
	492	{ .addr = priv->pll_i2c_address, .flags = 0, .buf = buf, .len = sizeof(buf) };
	493	int i;
	494	int result;
	495
	496	for (i = 0; i < priv->pll_desc->count; i++) {
	497	if (priv->pll_desc->entries[i].limit == 0)
	498	break;
	499	}
	500	if (i == priv->pll_desc->count)
	501	return 0;
	502
	503	buf[0] = 0;
	504	buf[1] = 0;
	505	buf[2] = priv->pll_desc->entries[i].config;
	506	buf[3] = priv->pll_desc->entries[i].cb;
	507
	508	if (fe->ops->i2c_gate_ctrl)
	509	fe->ops->i2c_gate_ctrl(fe, 1);
	510	if ((result = i2c_transfer(priv->i2c, &msg, 1)) != 1) {
	511	return result;
	512	}
	513
	514	return 0;
	515	}
	516
	517	static int dvb_pll_set_params(struct dvb_frontend fe, struct dvb_frontend_parameters params)
	518	{
	519	struct dvb_pll_priv *priv = fe->tuner_priv;
	520	u8 buf[4];
	521	struct i2c_msg msg =
	522	{ .addr = priv->pll_i2c_address, .flags = 0, .buf = buf, .len = sizeof(buf) };
	523	int result;
	524	u32 div;
	525	int i;
	526	u32 bandwidth = 0;
	527
	528	if (priv->i2c == NULL)
	529	return -EINVAL;
	530
	531	// DVBT bandwidth only just now
	532	if (fe->ops->info.type == FE_OFDM) {
	533	bandwidth = params->u.ofdm.bandwidth;
	534	}
	535
	536	if ((result = dvb_pll_configure(priv->pll_desc, buf, params->frequency, bandwidth)) != 0)
	537	return result;
	538
	539	if (fe->ops->i2c_gate_ctrl)
	540	fe->ops->i2c_gate_ctrl(fe, 1);
	541	if ((result = i2c_transfer(priv->i2c, &msg, 1)) != 1) {
	542	return result;
543	}
544
545	// calculate the frequency we set it to
546	for (i = 0; i < priv->pll_desc->count; i++) {
547	if (params->frequency > priv->pll_desc->entries[i].limit)
548	continue;
549	break;
550	}
551	div = (params->frequency + priv->pll_desc->entries[i].offset) / priv->pll_desc->entries[i].stepsize;
552	priv->frequency = (div * priv->pll_desc->entries[i].stepsize) - priv->pll_desc->entries[i].offset;
553	priv->bandwidth = bandwidth;
554
555	return 0;
556	}
557
bd4956b8	558	static int dvb_pll_calc_regs(struct dvb_frontend fe, struct dvb_frontend_parameters params, u8 *buf, int buf_len)
272bc4db AQ	559	{
	560	struct dvb_pll_priv *priv = fe->tuner_priv;
	561	int result;
	562	u32 div;
	563	int i;
	564	u32 bandwidth = 0;
	565
	566	if (buf_len < 5)
	567	return -EINVAL;
	568
	569	// DVBT bandwidth only just now
	570	if (fe->ops->info.type == FE_OFDM) {
	571	bandwidth = params->u.ofdm.bandwidth;
	572	}
	573
	574	if ((result = dvb_pll_configure(priv->pll_desc, buf+1, params->frequency, bandwidth)) != 0)
	575	return result;
	576	buf[0] = priv->pll_i2c_address;
	577
	578	// calculate the frequency we set it to
	579	for (i = 0; i < priv->pll_desc->count; i++) {
	580	if (params->frequency > priv->pll_desc->entries[i].limit)
	581	continue;
	582	break;
	583	}
	584	div = (params->frequency + priv->pll_desc->entries[i].offset) / priv->pll_desc->entries[i].stepsize;
	585	priv->frequency = (div * priv->pll_desc->entries[i].stepsize) - priv->pll_desc->entries[i].offset;
	586	priv->bandwidth = bandwidth;
	587
	588	return 5;
	589	}
	590
	591	static int dvb_pll_get_frequency(struct dvb_frontend fe, u32 frequency)
	592	{
	593	struct dvb_pll_priv *priv = fe->tuner_priv;
	594	*frequency = priv->frequency;
	595	return 0;
	596	}
	597
	598	static int dvb_pll_get_bandwidth(struct dvb_frontend fe, u32 bandwidth)
	599	{
	600	struct dvb_pll_priv *priv = fe->tuner_priv;
	601	*bandwidth = priv->bandwidth;
	602	return 0;
	603	}
	604
	605	static struct dvb_tuner_ops dvb_pll_tuner_ops = {
	606	.release = dvb_pll_release,
	607	.sleep = dvb_pll_sleep,
	608	.set_params = dvb_pll_set_params,
bd4956b8	609	.calc_regs = dvb_pll_calc_regs,
272bc4db AQ	610	.get_frequency = dvb_pll_get_frequency,
	611	.get_bandwidth = dvb_pll_get_bandwidth,
	612	};
	613
	614	int dvb_pll_attach(struct dvb_frontend fe, int pll_addr, struct i2c_adapter i2c, struct dvb_pll_desc *desc)
	615	{
	616	struct dvb_pll_priv *priv = NULL;
	617
	618	priv = kzalloc(sizeof(struct dvb_pll_priv), GFP_KERNEL);
	619	if (priv == NULL)
	620	return -ENOMEM;
	621
	622	priv->pll_i2c_address = pll_addr;
	623	priv->i2c = i2c;
	624	priv->pll_desc = desc;
	625
	626	memcpy(&fe->ops->tuner_ops, &dvb_pll_tuner_ops, sizeof(struct dvb_tuner_ops));
	627	strncpy(fe->ops->tuner_ops.info.name, desc->name, 128);
	628	fe->ops->tuner_ops.info.frequency_min = desc->min;
	629	fe->ops->tuner_ops.info.frequency_min = desc->max;
	630
	631	fe->tuner_priv = priv;
	632	return 0;
	633	}
	634	EXPORT_SYMBOL(dvb_pll_attach);
	635
1da177e4 LT	636	MODULE_DESCRIPTION("dvb pll library");
	637	MODULE_AUTHOR("Gerd Knorr");
	638	MODULE_LICENSE("GPL");