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linux/drivers/media/dvb/frontends/dvb-pll.c
Michael Krufky 89faeefcf8 V4L/DVB (4868): Dvb-pll: return frequency set by dvb_pll_configure() 
This patch removes some duplicated code by returning the frequency set by
dvb_pll_configure(), instead of recalculating it again in dvb_pll_set_params()
and dvb_pll_calc_regs().
If the return value of dvb_pll_configure is less than zero, it is an error
code.  Otherwise, the return value is the frequency actually set by the
function.

Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Acked-by: Andrew de Quincey <adq_dvb@lidskialf.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2006-12-10 09:05:05 -02:00

655 lines
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/*
* 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, 0xc4 /* 110 0 0 1 00 */ },
{ 583834000, 36249333, 166667, 0xca, 0x64 /* 011 0 0 1 00 */ },
{ 793834000, 36249333, 166667, 0xca, 0xa4 /* 101 0 0 1 00 */ },
{ 444834000, 36249333, 166667, 0xca, 0xc4 /* 110 0 0 1 00 */ },
{ 861000000, 36249333, 166667, 0xca, 0xe4 /* 111 0 0 1 00 */ },
}
};
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]);
// calculate the frequency we set it to
return (div * desc->entries[i].stepsize) - desc->entries[i].offset;
}
EXPORT_SYMBOL(dvb_pll_configure);
static int dvb_pll_release(struct dvb_frontend *fe)
{
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;
if (priv->i2c == NULL)
return -EINVAL;
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 bandwidth = 0, frequency = 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;
else
frequency = 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;
}
priv->frequency = frequency;
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 bandwidth = 0, frequency = 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;
else
frequency = result;
buf[0] = priv->pll_i2c_address;
priv->frequency = frequency;
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,
};
struct dvb_frontend *dvb_pll_attach(struct dvb_frontend *fe, int pll_addr,
struct i2c_adapter *i2c,
struct dvb_pll_desc *desc)
{
u8 b1 [] = { 0 };
struct i2c_msg msg = { .addr = pll_addr, .flags = I2C_M_RD,
.buf = b1, .len = 1 };
struct dvb_pll_priv *priv = NULL;
int ret;
if (i2c != NULL) {
if (fe->ops.i2c_gate_ctrl)
fe->ops.i2c_gate_ctrl(fe, 1);
ret = i2c_transfer (i2c, &msg, 1);
if (ret != 1)
return NULL;
if (fe->ops.i2c_gate_ctrl)
fe->ops.i2c_gate_ctrl(fe, 0);
}
priv = kzalloc(sizeof(struct dvb_pll_priv), GFP_KERNEL);
if (priv == NULL)
return NULL;
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 fe;
}
EXPORT_SYMBOL(dvb_pll_attach);
MODULE_DESCRIPTION("dvb pll library");
MODULE_AUTHOR("Gerd Knorr");
MODULE_LICENSE("GPL");
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