[media] Montage M88TS2022 silicon tuner driver
M88TS2022 is DVB-S/S2 RF tuner used usually in conjunction with Montage M88DS3103 DVB-S/S2 demodulator. Signed-off-by: Antti Palosaari <crope@iki.fi> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
This commit is contained in:
Antti Palosaari
Mauro Carvalho Chehab
parent
395d00d1ca
commit
695efd010b
|
|
@ -215,6 +215,13 @@ config MEDIA_TUNER_FC2580
|
|||
help
|
||||
FCI FC2580 silicon tuner driver.
|
||||
|
||||
config MEDIA_TUNER_M88TS2022
|
||||
tristate "Montage M88TS2022 silicon tuner"
|
||||
depends on MEDIA_SUPPORT && I2C
|
||||
default m if !MEDIA_SUBDRV_AUTOSELECT
|
||||
help
|
||||
Montage M88TS2022 silicon tuner driver.
|
||||
|
||||
config MEDIA_TUNER_TUA9001
|
||||
tristate "Infineon TUA 9001 silicon tuner"
|
||||
depends on MEDIA_SUPPORT && I2C
|
||||
|
|
|
|||
|
|
@ -31,6 +31,7 @@ obj-$(CONFIG_MEDIA_TUNER_TDA18212) += tda18212.o
|
|||
obj-$(CONFIG_MEDIA_TUNER_E4000) += e4000.o
|
||||
obj-$(CONFIG_MEDIA_TUNER_FC2580) += fc2580.o
|
||||
obj-$(CONFIG_MEDIA_TUNER_TUA9001) += tua9001.o
|
||||
obj-$(CONFIG_MEDIA_TUNER_M88TS2022) += m88ts2022.o
|
||||
obj-$(CONFIG_MEDIA_TUNER_FC0011) += fc0011.o
|
||||
obj-$(CONFIG_MEDIA_TUNER_FC0012) += fc0012.o
|
||||
obj-$(CONFIG_MEDIA_TUNER_FC0013) += fc0013.o
|
||||
|
|
|
|||
664
drivers/media/tuners/m88ts2022.c
Normal file
664
drivers/media/tuners/m88ts2022.c
Normal file
|
|
@ -0,0 +1,664 @@
|
|||
/*
|
||||
* Montage M88TS2022 silicon tuner driver
|
||||
*
|
||||
* Copyright (C) 2013 Antti Palosaari <crope@iki.fi>
|
||||
*
|
||||
* 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.,
|
||||
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
|
||||
*
|
||||
* Some calculations are taken from existing TS2020 driver.
|
||||
*/
|
||||
|
||||
#include "m88ts2022_priv.h"
|
||||
|
||||
/* write multiple registers */
|
||||
static int m88ts2022_wr_regs(struct m88ts2022_priv *priv,
|
||||
u8 reg, const u8 *val, int len)
|
||||
{
|
||||
int ret;
|
||||
u8 buf[1 + len];
|
||||
struct i2c_msg msg[1] = {
|
||||
{
|
||||
.addr = priv->cfg->i2c_addr,
|
||||
.flags = 0,
|
||||
.len = sizeof(buf),
|
||||
.buf = buf,
|
||||
}
|
||||
};
|
||||
|
||||
buf[0] = reg;
|
||||
memcpy(&buf[1], val, len);
|
||||
|
||||
ret = i2c_transfer(priv->i2c, msg, 1);
|
||||
if (ret == 1) {
|
||||
ret = 0;
|
||||
} else {
|
||||
dev_warn(&priv->i2c->dev,
|
||||
"%s: i2c wr failed=%d reg=%02x len=%d\n",
|
||||
KBUILD_MODNAME, ret, reg, len);
|
||||
ret = -EREMOTEIO;
|
||||
}
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
||||
/* read multiple registers */
|
||||
static int m88ts2022_rd_regs(struct m88ts2022_priv *priv, u8 reg,
|
||||
u8 *val, int len)
|
||||
{
|
||||
int ret;
|
||||
u8 buf[len];
|
||||
struct i2c_msg msg[2] = {
|
||||
{
|
||||
.addr = priv->cfg->i2c_addr,
|
||||
.flags = 0,
|
||||
.len = 1,
|
||||
.buf = ®,
|
||||
}, {
|
||||
.addr = priv->cfg->i2c_addr,
|
||||
.flags = I2C_M_RD,
|
||||
.len = sizeof(buf),
|
||||
.buf = buf,
|
||||
}
|
||||
};
|
||||
|
||||
ret = i2c_transfer(priv->i2c, msg, 2);
|
||||
if (ret == 2) {
|
||||
memcpy(val, buf, len);
|
||||
ret = 0;
|
||||
} else {
|
||||
dev_warn(&priv->i2c->dev,
|
||||
"%s: i2c rd failed=%d reg=%02x len=%d\n",
|
||||
KBUILD_MODNAME, ret, reg, len);
|
||||
ret = -EREMOTEIO;
|
||||
}
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
||||
/* write single register */
|
||||
static int m88ts2022_wr_reg(struct m88ts2022_priv *priv, u8 reg, u8 val)
|
||||
{
|
||||
return m88ts2022_wr_regs(priv, reg, &val, 1);
|
||||
}
|
||||
|
||||
/* read single register */
|
||||
static int m88ts2022_rd_reg(struct m88ts2022_priv *priv, u8 reg, u8 *val)
|
||||
{
|
||||
return m88ts2022_rd_regs(priv, reg, val, 1);
|
||||
}
|
||||
|
||||
/* write single register with mask */
|
||||
static int m88ts2022_wr_reg_mask(struct m88ts2022_priv *priv,
|
||||
u8 reg, u8 val, u8 mask)
|
||||
{
|
||||
int ret;
|
||||
u8 u8tmp;
|
||||
|
||||
/* no need for read if whole reg is written */
|
||||
if (mask != 0xff) {
|
||||
ret = m88ts2022_rd_regs(priv, reg, &u8tmp, 1);
|
||||
if (ret)
|
||||
return ret;
|
||||
|
||||
val &= mask;
|
||||
u8tmp &= ~mask;
|
||||
val |= u8tmp;
|
||||
}
|
||||
|
||||
return m88ts2022_wr_regs(priv, reg, &val, 1);
|
||||
}
|
||||
|
||||
static int m88ts2022_cmd(struct dvb_frontend *fe,
|
||||
int op, int sleep, u8 reg, u8 mask, u8 val, u8 *reg_val)
|
||||
{
|
||||
struct m88ts2022_priv *priv = fe->tuner_priv;
|
||||
int ret, i;
|
||||
u8 u8tmp;
|
||||
struct m88ts2022_reg_val reg_vals[] = {
|
||||
{0x51, 0x1f - op},
|
||||
{0x51, 0x1f},
|
||||
{0x50, 0x00 + op},
|
||||
{0x50, 0x00},
|
||||
};
|
||||
|
||||
for (i = 0; i < 2; i++) {
|
||||
dev_dbg(&priv->i2c->dev,
|
||||
"%s: i=%d op=%02x reg=%02x mask=%02x val=%02x\n",
|
||||
__func__, i, op, reg, mask, val);
|
||||
|
||||
for (i = 0; i < ARRAY_SIZE(reg_vals); i++) {
|
||||
ret = m88ts2022_wr_reg(priv, reg_vals[i].reg,
|
||||
reg_vals[i].val);
|
||||
if (ret)
|
||||
goto err;
|
||||
}
|
||||
|
||||
usleep_range(sleep * 1000, sleep * 10000);
|
||||
|
||||
ret = m88ts2022_rd_reg(priv, reg, &u8tmp);
|
||||
if (ret)
|
||||
goto err;
|
||||
|
||||
if ((u8tmp & mask) != val)
|
||||
break;
|
||||
}
|
||||
|
||||
if (reg_val)
|
||||
*reg_val = u8tmp;
|
||||
err:
|
||||
return ret;
|
||||
}
|
||||
|
||||
static int m88ts2022_set_params(struct dvb_frontend *fe)
|
||||
{
|
||||
struct m88ts2022_priv *priv = fe->tuner_priv;
|
||||
struct dtv_frontend_properties *c = &fe->dtv_property_cache;
|
||||
int ret = 0, div;
|
||||
u8 buf[3], u8tmp, cap_code, lpf_mxdiv, div_max, div_min;
|
||||
u16 N_reg, N, K;
|
||||
u32 lpf_gm, lpf_coeff, gdiv28, frequency_khz, frequency_offset;
|
||||
u32 freq_3db;
|
||||
dev_dbg(&priv->i2c->dev,
|
||||
"%s: frequency=%d symbol_rate=%d rolloff=%d\n",
|
||||
__func__, c->frequency, c->symbol_rate, c->rolloff);
|
||||
|
||||
if (c->symbol_rate < 5000000)
|
||||
frequency_offset = 3000000; /* 3 MHz */
|
||||
else
|
||||
frequency_offset = 0;
|
||||
|
||||
frequency_khz = c->frequency + (frequency_offset / 1000);
|
||||
|
||||
if (frequency_khz < 1103000) {
|
||||
div = 2;
|
||||
u8tmp = 0x1b;
|
||||
} else {
|
||||
div = 1;
|
||||
u8tmp = 0x0b;
|
||||
}
|
||||
|
||||
buf[0] = u8tmp;
|
||||
buf[1] = 0x40;
|
||||
ret = m88ts2022_wr_regs(priv, 0x10, buf, 2);
|
||||
if (ret)
|
||||
goto err;
|
||||
|
||||
K = DIV_ROUND_CLOSEST((priv->cfg->clock / 2), 1000000);
|
||||
N = 1ul * frequency_khz * K * div * 2 / (priv->cfg->clock / 1000);
|
||||
N += N % 2;
|
||||
|
||||
if (N < 4095)
|
||||
N_reg = N - 1024;
|
||||
else if (N < 6143)
|
||||
N_reg = N + 1024;
|
||||
else
|
||||
N_reg = N + 3072;
|
||||
|
||||
buf[0] = (N_reg >> 8) & 0x3f;
|
||||
buf[1] = (N_reg >> 0) & 0xff;
|
||||
buf[2] = K - 8;
|
||||
ret = m88ts2022_wr_regs(priv, 0x01, buf, 3);
|
||||
if (ret)
|
||||
goto err;
|
||||
|
||||
priv->frequency_khz = 1ul * N * (priv->cfg->clock / 1000) / K / div / 2;
|
||||
|
||||
dev_dbg(&priv->i2c->dev,
|
||||
"%s: frequency=%d offset=%d K=%d N=%d div=%d\n",
|
||||
__func__, priv->frequency_khz,
|
||||
priv->frequency_khz - c->frequency, K, N, div);
|
||||
|
||||
ret = m88ts2022_cmd(fe, 0x10, 5, 0x15, 0x40, 0x00, NULL);
|
||||
if (ret)
|
||||
goto err;
|
||||
|
||||
ret = m88ts2022_rd_reg(priv, 0x14, &u8tmp);
|
||||
if (ret)
|
||||
goto err;
|
||||
|
||||
u8tmp &= 0x7f;
|
||||
if (u8tmp < 64) {
|
||||
ret = m88ts2022_wr_reg_mask(priv, 0x10, 0x80, 0x80);
|
||||
if (ret)
|
||||
goto err;
|
||||
|
||||
ret = m88ts2022_wr_reg(priv, 0x11, 0x6f);
|
||||
if (ret)
|
||||
goto err;
|
||||
|
||||
ret = m88ts2022_cmd(fe, 0x10, 5, 0x15, 0x40, 0x00, NULL);
|
||||
if (ret)
|
||||
goto err;
|
||||
}
|
||||
|
||||
ret = m88ts2022_rd_reg(priv, 0x14, &u8tmp);
|
||||
if (ret)
|
||||
goto err;
|
||||
|
||||
u8tmp &= 0x1f;
|
||||
if (u8tmp > 19) {
|
||||
ret = m88ts2022_wr_reg_mask(priv, 0x10, 0x00, 0x02);
|
||||
if (ret)
|
||||
goto err;
|
||||
}
|
||||
|
||||
ret = m88ts2022_cmd(fe, 0x08, 5, 0x3c, 0xff, 0x00, NULL);
|
||||
if (ret)
|
||||
goto err;
|
||||
|
||||
ret = m88ts2022_wr_reg(priv, 0x25, 0x00);
|
||||
if (ret)
|
||||
goto err;
|
||||
|
||||
ret = m88ts2022_wr_reg(priv, 0x27, 0x70);
|
||||
if (ret)
|
||||
goto err;
|
||||
|
||||
ret = m88ts2022_wr_reg(priv, 0x41, 0x09);
|
||||
if (ret)
|
||||
goto err;
|
||||
|
||||
ret = m88ts2022_wr_reg(priv, 0x08, 0x0b);
|
||||
if (ret)
|
||||
goto err;
|
||||
|
||||
gdiv28 = DIV_ROUND_CLOSEST(priv->cfg->clock / 1000000 * 1694, 1000);
|
||||
|
||||
ret = m88ts2022_wr_reg(priv, 0x04, gdiv28);
|
||||
if (ret)
|
||||
goto err;
|
||||
|
||||
ret = m88ts2022_cmd(fe, 0x04, 2, 0x26, 0xff, 0x00, &u8tmp);
|
||||
if (ret)
|
||||
goto err;
|
||||
|
||||
cap_code = u8tmp & 0x3f;
|
||||
|
||||
ret = m88ts2022_wr_reg(priv, 0x41, 0x0d);
|
||||
if (ret)
|
||||
goto err;
|
||||
|
||||
ret = m88ts2022_cmd(fe, 0x04, 2, 0x26, 0xff, 0x00, &u8tmp);
|
||||
if (ret)
|
||||
goto err;
|
||||
|
||||
u8tmp &= 0x3f;
|
||||
cap_code = (cap_code + u8tmp) / 2;
|
||||
gdiv28 = gdiv28 * 207 / (cap_code * 2 + 151);
|
||||
div_max = gdiv28 * 135 / 100;
|
||||
div_min = gdiv28 * 78 / 100;
|
||||
if (div_max > 63)
|
||||
div_max = 63;
|
||||
|
||||
freq_3db = 1ul * c->symbol_rate * 135 / 200 + 2000000;
|
||||
freq_3db += frequency_offset;
|
||||
if (freq_3db < 7000000)
|
||||
freq_3db = 7000000;
|
||||
if (freq_3db > 40000000)
|
||||
freq_3db = 40000000;
|
||||
|
||||
lpf_coeff = 3200;
|
||||
lpf_gm = DIV_ROUND_CLOSEST(freq_3db * gdiv28, lpf_coeff *
|
||||
(priv->cfg->clock / 1000));
|
||||
if (lpf_gm > 23)
|
||||
lpf_gm = 23;
|
||||
if (lpf_gm < 1)
|
||||
lpf_gm = 1;
|
||||
|
||||
lpf_mxdiv = DIV_ROUND_CLOSEST(lpf_gm * lpf_coeff *
|
||||
(priv->cfg->clock / 1000), freq_3db);
|
||||
|
||||
if (lpf_mxdiv < div_min) {
|
||||
lpf_gm++;
|
||||
lpf_mxdiv = DIV_ROUND_CLOSEST(lpf_gm * lpf_coeff *
|
||||
(priv->cfg->clock / 1000), freq_3db);
|
||||
}
|
||||
|
||||
if (lpf_mxdiv > div_max)
|
||||
lpf_mxdiv = div_max;
|
||||
|
||||
ret = m88ts2022_wr_reg(priv, 0x04, lpf_mxdiv);
|
||||
if (ret)
|
||||
goto err;
|
||||
|
||||
ret = m88ts2022_wr_reg(priv, 0x06, lpf_gm);
|
||||
if (ret)
|
||||
goto err;
|
||||
|
||||
ret = m88ts2022_cmd(fe, 0x04, 2, 0x26, 0xff, 0x00, &u8tmp);
|
||||
if (ret)
|
||||
goto err;
|
||||
|
||||
cap_code = u8tmp & 0x3f;
|
||||
|
||||
ret = m88ts2022_wr_reg(priv, 0x41, 0x09);
|
||||
if (ret)
|
||||
goto err;
|
||||
|
||||
ret = m88ts2022_cmd(fe, 0x04, 2, 0x26, 0xff, 0x00, &u8tmp);
|
||||
if (ret)
|
||||
goto err;
|
||||
|
||||
u8tmp &= 0x3f;
|
||||
cap_code = (cap_code + u8tmp) / 2;
|
||||
|
||||
u8tmp = cap_code | 0x80;
|
||||
ret = m88ts2022_wr_reg(priv, 0x25, u8tmp);
|
||||
if (ret)
|
||||
goto err;
|
||||
|
||||
ret = m88ts2022_wr_reg(priv, 0x27, 0x30);
|
||||
if (ret)
|
||||
goto err;
|
||||
|
||||
ret = m88ts2022_wr_reg(priv, 0x08, 0x09);
|
||||
if (ret)
|
||||
goto err;
|
||||
|
||||
ret = m88ts2022_cmd(fe, 0x01, 20, 0x21, 0xff, 0x00, NULL);
|
||||
if (ret)
|
||||
goto err;
|
||||
err:
|
||||
if (ret)
|
||||
dev_dbg(&priv->i2c->dev, "%s: failed=%d\n", __func__, ret);
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
||||
static int m88ts2022_init(struct dvb_frontend *fe)
|
||||
{
|
||||
struct m88ts2022_priv *priv = fe->tuner_priv;
|
||||
int ret, i;
|
||||
u8 u8tmp;
|
||||
static const struct m88ts2022_reg_val reg_vals[] = {
|
||||
{0x7d, 0x9d},
|
||||
{0x7c, 0x9a},
|
||||
{0x7a, 0x76},
|
||||
{0x3b, 0x01},
|
||||
{0x63, 0x88},
|
||||
{0x61, 0x85},
|
||||
{0x22, 0x30},
|
||||
{0x30, 0x40},
|
||||
{0x20, 0x23},
|
||||
{0x24, 0x02},
|
||||
{0x12, 0xa0},
|
||||
};
|
||||
dev_dbg(&priv->i2c->dev, "%s:\n", __func__);
|
||||
|
||||
ret = m88ts2022_wr_reg(priv, 0x00, 0x01);
|
||||
if (ret)
|
||||
goto err;
|
||||
|
||||
ret = m88ts2022_wr_reg(priv, 0x00, 0x03);
|
||||
if (ret)
|
||||
goto err;
|
||||
|
||||
switch (priv->cfg->clock_out) {
|
||||
case M88TS2022_CLOCK_OUT_DISABLED:
|
||||
u8tmp = 0x60;
|
||||
break;
|
||||
case M88TS2022_CLOCK_OUT_ENABLED:
|
||||
u8tmp = 0x70;
|
||||
ret = m88ts2022_wr_reg(priv, 0x05, priv->cfg->clock_out_div);
|
||||
if (ret)
|
||||
goto err;
|
||||
break;
|
||||
case M88TS2022_CLOCK_OUT_ENABLED_XTALOUT:
|
||||
u8tmp = 0x6c;
|
||||
break;
|
||||
default:
|
||||
goto err;
|
||||
}
|
||||
|
||||
ret = m88ts2022_wr_reg(priv, 0x42, u8tmp);
|
||||
if (ret)
|
||||
goto err;
|
||||
|
||||
if (priv->cfg->loop_through)
|
||||
u8tmp = 0xec;
|
||||
else
|
||||
u8tmp = 0x6c;
|
||||
|
||||
ret = m88ts2022_wr_reg(priv, 0x62, u8tmp);
|
||||
if (ret)
|
||||
goto err;
|
||||
|
||||
for (i = 0; i < ARRAY_SIZE(reg_vals); i++) {
|
||||
ret = m88ts2022_wr_reg(priv, reg_vals[i].reg, reg_vals[i].val);
|
||||
if (ret)
|
||||
goto err;
|
||||
}
|
||||
err:
|
||||
if (ret)
|
||||
dev_dbg(&priv->i2c->dev, "%s: failed=%d\n", __func__, ret);
|
||||
return ret;
|
||||
}
|
||||
|
||||
static int m88ts2022_sleep(struct dvb_frontend *fe)
|
||||
{
|
||||
struct m88ts2022_priv *priv = fe->tuner_priv;
|
||||
int ret;
|
||||
dev_dbg(&priv->i2c->dev, "%s:\n", __func__);
|
||||
|
||||
ret = m88ts2022_wr_reg(priv, 0x00, 0x00);
|
||||
if (ret)
|
||||
goto err;
|
||||
err:
|
||||
if (ret)
|
||||
dev_dbg(&priv->i2c->dev, "%s: failed=%d\n", __func__, ret);
|
||||
return ret;
|
||||
}
|
||||
|
||||
static int m88ts2022_get_frequency(struct dvb_frontend *fe, u32 *frequency)
|
||||
{
|
||||
struct m88ts2022_priv *priv = fe->tuner_priv;
|
||||
dev_dbg(&priv->i2c->dev, "%s:\n", __func__);
|
||||
|
||||
*frequency = priv->frequency_khz;
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int m88ts2022_get_if_frequency(struct dvb_frontend *fe, u32 *frequency)
|
||||
{
|
||||
struct m88ts2022_priv *priv = fe->tuner_priv;
|
||||
dev_dbg(&priv->i2c->dev, "%s:\n", __func__);
|
||||
|
||||
*frequency = 0; /* Zero-IF */
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int m88ts2022_get_rf_strength(struct dvb_frontend *fe, u16 *strength)
|
||||
{
|
||||
struct m88ts2022_priv *priv = fe->tuner_priv;
|
||||
u8 u8tmp, gain1, gain2, gain3;
|
||||
u16 gain, u16tmp;
|
||||
int ret;
|
||||
|
||||
ret = m88ts2022_rd_reg(priv, 0x3d, &u8tmp);
|
||||
if (ret)
|
||||
goto err;
|
||||
|
||||
gain1 = (u8tmp >> 0) & 0x1f;
|
||||
if (gain1 > 15)
|
||||
gain1 = 15;
|
||||
|
||||
ret = m88ts2022_rd_reg(priv, 0x21, &u8tmp);
|
||||
if (ret)
|
||||
goto err;
|
||||
|
||||
gain2 = (u8tmp >> 0) & 0x1f;
|
||||
if (gain2 < 2)
|
||||
gain2 = 2;
|
||||
if (gain2 > 16)
|
||||
gain2 = 16;
|
||||
|
||||
ret = m88ts2022_rd_reg(priv, 0x66, &u8tmp);
|
||||
if (ret)
|
||||
goto err;
|
||||
|
||||
gain3 = (u8tmp >> 3) & 0x07;
|
||||
if (gain3 > 6)
|
||||
gain3 = 6;
|
||||
|
||||
gain = gain1 * 265 + gain2 * 338 + gain3 * 285;
|
||||
|
||||
/* scale value to 0x0000-0xffff */
|
||||
u16tmp = (0xffff - gain);
|
||||
if (u16tmp < 59000)
|
||||
u16tmp = 59000;
|
||||
else if (u16tmp > 61500)
|
||||
u16tmp = 61500;
|
||||
|
||||
*strength = (u16tmp - 59000) * 0xffff / (61500 - 59000);
|
||||
err:
|
||||
if (ret)
|
||||
dev_dbg(&priv->i2c->dev, "%s: failed=%d\n", __func__, ret);
|
||||
return ret;
|
||||
}
|
||||
|
||||
static int m88ts2022_release(struct dvb_frontend *fe)
|
||||
{
|
||||
struct m88ts2022_priv *priv = fe->tuner_priv;
|
||||
dev_dbg(&priv->i2c->dev, "%s:\n", __func__);
|
||||
|
||||
kfree(fe->tuner_priv);
|
||||
return 0;
|
||||
}
|
||||
|
||||
static const struct dvb_tuner_ops m88ts2022_tuner_ops = {
|
||||
.info = {
|
||||
.name = "Montage M88TS2022",
|
||||
.frequency_min = 950000,
|
||||
.frequency_max = 2150000,
|
||||
},
|
||||
|
||||
.release = m88ts2022_release,
|
||||
|
||||
.init = m88ts2022_init,
|
||||
.sleep = m88ts2022_sleep,
|
||||
.set_params = m88ts2022_set_params,
|
||||
|
||||
.get_frequency = m88ts2022_get_frequency,
|
||||
.get_if_frequency = m88ts2022_get_if_frequency,
|
||||
.get_rf_strength = m88ts2022_get_rf_strength,
|
||||
};
|
||||
|
||||
struct dvb_frontend *m88ts2022_attach(struct dvb_frontend *fe,
|
||||
struct i2c_adapter *i2c, const struct m88ts2022_config *cfg)
|
||||
{
|
||||
struct m88ts2022_priv *priv;
|
||||
int ret;
|
||||
u8 chip_id, u8tmp;
|
||||
|
||||
priv = kzalloc(sizeof(struct m88ts2022_priv), GFP_KERNEL);
|
||||
if (!priv) {
|
||||
ret = -ENOMEM;
|
||||
dev_err(&i2c->dev, "%s: kzalloc() failed\n", KBUILD_MODNAME);
|
||||
goto err;
|
||||
}
|
||||
|
||||
priv->cfg = cfg;
|
||||
priv->i2c = i2c;
|
||||
priv->fe = fe;
|
||||
|
||||
/* check if the tuner is there */
|
||||
ret = m88ts2022_rd_reg(priv, 0x00, &u8tmp);
|
||||
if (ret)
|
||||
goto err;
|
||||
|
||||
if ((u8tmp & 0x03) == 0x00) {
|
||||
ret = m88ts2022_wr_reg(priv, 0x00, 0x01);
|
||||
if (ret < 0)
|
||||
goto err;
|
||||
|
||||
usleep_range(2000, 50000);
|
||||
}
|
||||
|
||||
ret = m88ts2022_wr_reg(priv, 0x00, 0x03);
|
||||
if (ret)
|
||||
goto err;
|
||||
|
||||
usleep_range(2000, 50000);
|
||||
|
||||
ret = m88ts2022_rd_reg(priv, 0x00, &chip_id);
|
||||
if (ret)
|
||||
goto err;
|
||||
|
||||
dev_dbg(&priv->i2c->dev, "%s: chip_id=%02x\n", __func__, chip_id);
|
||||
|
||||
switch (chip_id) {
|
||||
case 0xc3:
|
||||
case 0x83:
|
||||
break;
|
||||
default:
|
||||
goto err;
|
||||
}
|
||||
|
||||
switch (priv->cfg->clock_out) {
|
||||
case M88TS2022_CLOCK_OUT_DISABLED:
|
||||
u8tmp = 0x60;
|
||||
break;
|
||||
case M88TS2022_CLOCK_OUT_ENABLED:
|
||||
u8tmp = 0x70;
|
||||
ret = m88ts2022_wr_reg(priv, 0x05, priv->cfg->clock_out_div);
|
||||
if (ret)
|
||||
goto err;
|
||||
break;
|
||||
case M88TS2022_CLOCK_OUT_ENABLED_XTALOUT:
|
||||
u8tmp = 0x6c;
|
||||
break;
|
||||
default:
|
||||
goto err;
|
||||
}
|
||||
|
||||
ret = m88ts2022_wr_reg(priv, 0x42, u8tmp);
|
||||
if (ret)
|
||||
goto err;
|
||||
|
||||
if (priv->cfg->loop_through)
|
||||
u8tmp = 0xec;
|
||||
else
|
||||
u8tmp = 0x6c;
|
||||
|
||||
ret = m88ts2022_wr_reg(priv, 0x62, u8tmp);
|
||||
if (ret)
|
||||
goto err;
|
||||
|
||||
/* sleep */
|
||||
ret = m88ts2022_wr_reg(priv, 0x00, 0x00);
|
||||
if (ret)
|
||||
goto err;
|
||||
|
||||
dev_info(&priv->i2c->dev,
|
||||
"%s: Montage M88TS2022 successfully identified\n",
|
||||
KBUILD_MODNAME);
|
||||
|
||||
fe->tuner_priv = priv;
|
||||
memcpy(&fe->ops.tuner_ops, &m88ts2022_tuner_ops,
|
||||
sizeof(struct dvb_tuner_ops));
|
||||
err:
|
||||
if (ret) {
|
||||
dev_dbg(&i2c->dev, "%s: failed=%d\n", __func__, ret);
|
||||
kfree(priv);
|
||||
return NULL;
|
||||
}
|
||||
|
||||
return fe;
|
||||
}
|
||||
EXPORT_SYMBOL(m88ts2022_attach);
|
||||
|
||||
MODULE_DESCRIPTION("Montage M88TS2022 silicon tuner driver");
|
||||
MODULE_AUTHOR("Antti Palosaari <crope@iki.fi>");
|
||||
MODULE_LICENSE("GPL");
|
||||
72
drivers/media/tuners/m88ts2022.h
Normal file
72
drivers/media/tuners/m88ts2022.h
Normal file
|
|
@ -0,0 +1,72 @@
|
|||
/*
|
||||
* Montage M88TS2022 silicon tuner driver
|
||||
*
|
||||
* Copyright (C) 2013 Antti Palosaari <crope@iki.fi>
|
||||
*
|
||||
* 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.,
|
||||
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
|
||||
*/
|
||||
|
||||
#ifndef M88TS2022_H
|
||||
#define M88TS2022_H
|
||||
|
||||
#include "dvb_frontend.h"
|
||||
|
||||
struct m88ts2022_config {
|
||||
/*
|
||||
* I2C address
|
||||
* 0x60, ...
|
||||
*/
|
||||
u8 i2c_addr;
|
||||
|
||||
/*
|
||||
* clock
|
||||
* 16000000 - 32000000
|
||||
*/
|
||||
u32 clock;
|
||||
|
||||
/*
|
||||
* RF loop-through
|
||||
*/
|
||||
u8 loop_through:1;
|
||||
|
||||
/*
|
||||
* clock output
|
||||
*/
|
||||
#define M88TS2022_CLOCK_OUT_DISABLED 0
|
||||
#define M88TS2022_CLOCK_OUT_ENABLED 1
|
||||
#define M88TS2022_CLOCK_OUT_ENABLED_XTALOUT 2
|
||||
u8 clock_out:2;
|
||||
|
||||
/*
|
||||
* clock output divider
|
||||
* 1 - 31
|
||||
*/
|
||||
u8 clock_out_div:5;
|
||||
};
|
||||
|
||||
#if defined(CONFIG_MEDIA_TUNER_M88TS2022) || \
|
||||
(defined(CONFIG_MEDIA_TUNER_M88TS2022_MODULE) && defined(MODULE))
|
||||
extern struct dvb_frontend *m88ts2022_attach(struct dvb_frontend *fe,
|
||||
struct i2c_adapter *i2c, const struct m88ts2022_config *cfg);
|
||||
#else
|
||||
static inline struct dvb_frontend *m88ts2022_attach(struct dvb_frontend *fe,
|
||||
struct i2c_adapter *i2c, const struct m88ts2022_config *cfg)
|
||||
{
|
||||
pr_warn("%s: driver disabled by Kconfig\n", __func__);
|
||||
return NULL;
|
||||
}
|
||||
#endif
|
||||
|
||||
#endif
|
||||
38
drivers/media/tuners/m88ts2022_priv.h
Normal file
38
drivers/media/tuners/m88ts2022_priv.h
Normal file
|
|
@ -0,0 +1,38 @@
|
|||
/*
|
||||
* Montage M88TS2022 silicon tuner driver
|
||||
*
|
||||
* Copyright (C) 2013 Antti Palosaari <crope@iki.fi>
|
||||
*
|
||||
* 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.,
|
||||
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
|
||||
*/
|
||||
|
||||
#ifndef M88TS2022_PRIV_H
|
||||
#define M88TS2022_PRIV_H
|
||||
|
||||
#include "m88ts2022.h"
|
||||
|
||||
struct m88ts2022_priv {
|
||||
const struct m88ts2022_config *cfg;
|
||||
struct i2c_adapter *i2c;
|
||||
struct dvb_frontend *fe;
|
||||
u32 frequency_khz;
|
||||
};
|
||||
|
||||
struct m88ts2022_reg_val {
|
||||
u8 reg;
|
||||
u8 val;
|
||||
};
|
||||
|
||||
#endif
|
||||
Loading…
Reference in a new issue