forked from ljalves/linux_media
/
si2183.c
1842 lines (1626 loc) · 40.2 KB
/
si2183.c
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/*
* Silicon Labs Si2183(2) DVB-T/T2/C/C2/S/S2 demodulator driver
*
* 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.
*/
#include "si2183.h"
#include <media/dvb_frontend.h>
#include <linux/firmware.h>
#include <linux/i2c-mux.h>
#if LINUX_VERSION_CODE >= KERNEL_VERSION(3, 7, 0)
#define SI2183_USE_I2C_MUX
#endif
#define SI2183_B60_FIRMWARE "dvb-demod-si2183-b60-01.fw"
#define SI2183_PROP_MODE 0x100a
#define SI2183_PROP_DVBC_CONST 0x1101
#define SI2183_PROP_DVBC_SR 0x1102
#define SI2183_PROP_DVBT_HIER 0x1201
#define SI2183_PROP_DVBT2_MODE 0x1304
#define SI2183_PROP_DVBS2_SR 0x1401
#define SI2183_PROP_DVBS_SR 0x1501
#define SI2183_PROP_MCNS_CONST 0x1601
#define SI2183_PROP_MCNS_SR 0x1602
#define SI2183_ARGLEN 30
struct si2183_cmd {
u8 args[SI2183_ARGLEN];
unsigned wlen;
unsigned rlen;
};
static const struct dvb_frontend_ops si2183_ops;
LIST_HEAD(silist);
struct si_base {
struct mutex i2c_mutex;
#if LINUX_VERSION_CODE >= KERNEL_VERSION(4, 7, 0)
struct i2c_mux_core *muxc;
#endif
struct list_head silist;
u8 adr;
struct i2c_adapter *i2c;
u32 count;
struct i2c_adapter *tuner_adapter;
#ifndef SI2183_USE_I2C_MUX
struct i2c_client *i2c_gate_client;
#endif
};
/* state struct */
struct si2183_dev {
struct dvb_frontend fe;
enum fe_delivery_system delivery_system;
enum fe_status fe_status;
u8 stat_resp;
u16 snr;
bool fw_loaded;
u8 ts_mode;
bool ts_clock_inv;
bool ts_clock_gapped;
int start_clk_mode;
u8 agc_mode;
struct si_base *base;
void (*RF_switch)(struct i2c_adapter * i2c,u8 rf_in,u8 flag);
u8 rf_in;
u8 active_fe;
void (*TS_switch)(struct i2c_adapter * i2c,u8 flag);
void (*LED_switch)(struct i2c_adapter * i2c,u8 flag);
void (*write_properties) (struct i2c_adapter *i2c,u8 reg, u32 buf);
void (*read_properties) (struct i2c_adapter *i2c,u8 reg, u32 *buf);
void (*write_eeprom) (struct i2c_adapter *i2c,u8 reg, u8 buf);
void (*read_eeprom) (struct i2c_adapter *i2c,u8 reg, u8 *buf);
};
/* Own I2C adapter locking is needed because of I2C gate logic. */
static int si2183_i2c_master_send_unlocked(const struct i2c_client *client,
const char *buf, int count)
{
int ret;
struct i2c_msg msg = {
.addr = client->addr,
.flags = 0,
.len = count,
.buf = (char *)buf,
};
ret = __i2c_transfer(client->adapter, &msg, 1);
return (ret == 1) ? count : ret;
}
static int si2183_i2c_master_recv_unlocked(const struct i2c_client *client,
char *buf, int count)
{
int ret;
struct i2c_msg msg = {
.addr = client->addr,
.flags = I2C_M_RD,
.len = count,
.buf = buf,
};
ret = __i2c_transfer(client->adapter, &msg, 1);
return (ret == 1) ? count : ret;
}
/* execute firmware command */
static int si2183_cmd_execute_unlocked(struct i2c_client *client,
struct si2183_cmd *cmd)
{
int ret;
unsigned long timeout;
if (cmd->wlen) {
/* write cmd and args for firmware */
ret = si2183_i2c_master_send_unlocked(client, cmd->args,
cmd->wlen);
if (ret < 0) {
goto err;
} else if (ret != cmd->wlen) {
ret = -EREMOTEIO;
goto err;
}
}
if (cmd->rlen) {
/* wait cmd execution terminate */
#define TIMEOUT 500
timeout = jiffies + msecs_to_jiffies(TIMEOUT);
while (!time_after(jiffies, timeout)) {
ret = si2183_i2c_master_recv_unlocked(client, cmd->args,
cmd->rlen);
if (ret < 0) {
goto err;
} else if (ret != cmd->rlen) {
ret = -EREMOTEIO;
goto err;
}
/* firmware ready? */
if ((cmd->args[0] >> 7) & 0x01)
break;
}
dev_dbg(&client->dev, "cmd execution took %d ms\n",
jiffies_to_msecs(jiffies) -
(jiffies_to_msecs(timeout) - TIMEOUT));
/* error bit set? */
if ((cmd->args[0] >> 6) & 0x01) {
ret = -EREMOTEIO;
goto err;
}
if (!((cmd->args[0] >> 7) & 0x01)) {
ret = -ETIMEDOUT;
goto err;
}
}
return 0;
err:
dev_dbg(&client->dev, "failed=%d\n", ret);
return ret;
}
static int si2183_cmd_execute(struct i2c_client *client, struct si2183_cmd *cmd)
{
struct si2183_dev *dev = i2c_get_clientdata(client);
int ret;
mutex_lock(&dev->base->i2c_mutex);
ret = si2183_cmd_execute_unlocked(client, cmd);
mutex_unlock(&dev->base->i2c_mutex);
return ret;
}
static int si2183_set_prop(struct i2c_client *client, u16 prop, u16 *val)
{
struct si2183_cmd cmd;
int ret;
cmd.args[0] = 0x14;
cmd.args[1] = 0x00;
cmd.args[2] = (u8) prop;
cmd.args[3] = (u8) (prop >> 8);
cmd.args[4] = (u8) (*val);
cmd.args[5] = (u8) (*val >> 8);
cmd.wlen = 6;
cmd.rlen = 4;
ret = si2183_cmd_execute(client, &cmd);
*val = (cmd.args[2] | (cmd.args[3] << 8));
return ret;
}
#if 0
static int si2183_get_prop(struct i2c_client *client, u16 prop, u16 *val)
{
struct si2183_cmd cmd;
int ret;
cmd.args[0] = 0x15;
cmd.args[1] = 0x00;
cmd.args[2] = (u8) prop;
cmd.args[3] = (u8) (prop >> 8);
cmd.wlen = 4;
cmd.rlen = 4;
ret = si2183_cmd_execute(client, &cmd);
*val = (cmd.args[2] | (cmd.args[3] << 8));
return ret;
}
#endif
static int si2183_read_status(struct dvb_frontend *fe, enum fe_status *status)
{
struct i2c_client *client = fe->demodulator_priv;
struct si2183_dev *dev = i2c_get_clientdata(client);
struct dtv_frontend_properties *c = &fe->dtv_property_cache;
int ret;
struct si2183_cmd cmd;
u16 agc;
*status = 0;
if (!dev->active_fe) {
ret = -EAGAIN;
goto err;
}
if ((dev->delivery_system != c->delivery_system) || (dev->delivery_system == 0))
return 0;
switch (c->delivery_system) {
case SYS_DVBT:
memcpy(cmd.args, "\xa0\x01", 2);
cmd.wlen = 2;
cmd.rlen = 13;
dev->snr = 2;
break;
case SYS_DVBC_ANNEX_A:
memcpy(cmd.args, "\x90\x01", 2);
cmd.wlen = 2;
cmd.rlen = 9;
dev->snr = 2;
break;
case SYS_DVBC_ANNEX_B:
memcpy(cmd.args, "\x98\x01", 2);
cmd.wlen = 2;
cmd.rlen = 10;
dev->snr = 2;
break;
case SYS_DVBT2:
memcpy(cmd.args, "\x50\x01", 2);
cmd.wlen = 2;
cmd.rlen = 14;
dev->snr = 2;
break;
case SYS_DVBS:
memcpy(cmd.args, "\x60\x01", 2);
cmd.wlen = 2;
cmd.rlen = 10;
dev->snr = 5;
break;
case SYS_DVBS2:
memcpy(cmd.args, "\x70\x01", 2);
cmd.wlen = 2;
cmd.rlen = 13;
dev->snr = 5;
break;
case SYS_ISDBT:
memcpy(cmd.args, "\xa4\x01", 2);
cmd.wlen = 2;
cmd.rlen = 14;
dev->snr = 2;
break;
default:
ret = -EINVAL;
goto err;
}
ret = si2183_cmd_execute(client, &cmd);
if (ret) {
dev_err(&client->dev, "read_status fe%d cmd_exec failed=%d\n", fe->id, ret);
goto err;
}
dev->stat_resp = cmd.args[2];
switch ((dev->stat_resp >> 1) & 0x03) {
case 0x01:
*status = FE_HAS_SIGNAL | FE_HAS_CARRIER;
c->cnr.stat[0].scale = FE_SCALE_NOT_AVAILABLE;
break;
case 0x03:
*status = FE_HAS_SIGNAL | FE_HAS_CARRIER | FE_HAS_VITERBI |
FE_HAS_SYNC | FE_HAS_LOCK;
dev->snr *= cmd.args[3] * 164;
c->cnr.len = 2;
c->cnr.stat[0].scale = FE_SCALE_DECIBEL;
c->cnr.stat[0].svalue = (s64) cmd.args[3] * 250;
c->cnr.stat[1].scale = FE_SCALE_RELATIVE;
c->cnr.stat[1].svalue = dev->snr;
// writing missing properties
// CONSTELLATION or modulation
switch (cmd.args[8] & 0x3f){
case 0x03:
c->modulation = QPSK;
break;
case 0x07:
c->modulation = QAM_16;
break;
case 0x08:
c->modulation = QAM_32;
break;
case 0x09:
c->modulation = QAM_64;
break;
case 0x0a:
c->modulation = QAM_128;
break;
case 0x0b:
c->modulation = QAM_256;
break;
case 0x0e:
c->modulation = PSK_8;
break;
case 0x14:
c->modulation = APSK_16;
break;
case 0x17:
c->modulation = APSK_8L;
break;
case 0x18:
c->modulation = APSK_16L;
break;
case 0x15:
c->modulation = APSK_32;
break;
case 0x19:
c->modulation = APSK_32L;
break;
case 0x1a:
c->modulation = APSK_32;
break;
default:
c->modulation = QPSK;
break;
}
// fec_inner
switch (c->delivery_system) {
case SYS_DVBT2:
switch (cmd.args[12] & 0x0f){
case 0x01:
c->fec_inner = FEC_1_2;
break;
case 0x02:
c->fec_inner = FEC_2_3;
break;
case 0x03:
c->fec_inner = FEC_3_4;
break;
case 0x04:
c->fec_inner = FEC_4_5;
break;
case 0x05:
c->fec_inner = FEC_5_6;
break;
case 0x0a:
c->fec_inner = FEC_1_3;
break;
case 0x0c:
c->fec_inner = FEC_2_5;
break;
case 0x0d:
c->fec_inner = FEC_3_5;
break;
default:
c->fec_inner = FEC_AUTO;
break;
}
break;
case SYS_DVBS:
switch (cmd.args[9] & 0x0f){
case 0x01:
c->fec_inner = FEC_1_2;
break;
case 0x02:
c->fec_inner = FEC_2_3;
break;
case 0x03:
c->fec_inner = FEC_3_4;
break;
case 0x04:
c->fec_inner = FEC_4_5;
break;
case 0x05:
c->fec_inner = FEC_5_6;
break;
case 0x06:
c->fec_inner = FEC_6_7;
break;
case 0x07:
c->fec_inner = FEC_7_8;
break;
default:
c->fec_inner = FEC_AUTO;
break;
}
break;
case SYS_DVBS2:
switch (cmd.args[9] & 0x1f){
case 0x01:
c->fec_inner = FEC_1_2;
break;
case 0x02:
c->fec_inner = FEC_2_3;
break;
case 0x03:
c->fec_inner = FEC_3_4;
break;
case 0x04:
c->fec_inner = FEC_4_5;
break;
case 0x05:
c->fec_inner = FEC_5_6;
break;
case 0x08:
c->fec_inner = FEC_8_9;
break;
case 0x09:
c->fec_inner = FEC_9_10;
break;
case 0x0a:
c->fec_inner = FEC_1_3;
break;
case 0x0b:
c->fec_inner = FEC_1_4;
break;
case 0x0c:
c->fec_inner = FEC_2_5;
break;
case 0x0d:
c->fec_inner = FEC_3_5;
break;
default:
c->fec_inner = FEC_AUTO;
break;
}
break;
default:
c->fec_inner = FEC_AUTO;
break;
}
// rolloff and pilot (only available for dvb s2)
switch (c->delivery_system) {
case SYS_DVBS2:
// rolloff
switch (cmd.args[10] & 0x07){
case 0x00:
c->rolloff = ROLLOFF_35;
break;
case 0x01:
c->rolloff = ROLLOFF_25;
break;
case 0x02:
c->rolloff = ROLLOFF_20;
break;
case 0x04:
c->rolloff = ROLLOFF_15;
break;
case 0x05:
c->rolloff = ROLLOFF_10;
break;
case 0x06:
c->rolloff = ROLLOFF_5;
break;
default:
c->rolloff = ROLLOFF_AUTO;
break;
}
// pilot
switch ((cmd.args[8] >> 7) & 0x01){
case 0x01:
c->pilot = PILOT_ON;
break;
case 0x00:
c->pilot = PILOT_OFF;
break;
default:
c->pilot = PILOT_AUTO;
break;
}
break;
default:
c->rolloff = ROLLOFF_AUTO;
c->pilot = PILOT_AUTO;
break;
}
break;
default:
c->cnr.stat[0].scale = FE_SCALE_NOT_AVAILABLE;
break;
}
dev->fe_status = *status;
dev_dbg(&client->dev, "status=%02x args=%*ph\n",
*status, cmd.rlen, cmd.args);
if (fe->ops.tuner_ops.get_rf_strength)
{
memcpy(cmd.args, "\x8a\x00\x00\x00\x00\x00", 6);
cmd.wlen = 6;
cmd.rlen = 3;
ret = si2183_cmd_execute(client, &cmd);
if (ret) {
dev_err(&client->dev, "read_status fe%d cmd_exec failed=%d\n", fe->id, ret);
goto err;
}
dev_dbg(&client->dev, "status=%02x args=%*ph\n",
*status, cmd.rlen, cmd.args);
agc = cmd.args[1];
fe->ops.tuner_ops.get_rf_strength(fe, &agc);
}
if ( c->strength.len == 1 && c->strength.stat[0].scale == FE_SCALE_DECIBEL) {
c->strength.len ++;
c->strength.stat[1].scale = FE_SCALE_RELATIVE;
c->strength.stat[1].svalue = ((100000 + (s32)c->strength.stat[0].svalue) / 1000) * 656;
}
return 0;
err:
dev_err(&client->dev, "read_status failed=%d\n", ret);
return ret;
}
static int si2183_read_snr(struct dvb_frontend *fe, u16 *snr)
{
struct i2c_client *client = fe->demodulator_priv;
struct si2183_dev *dev = i2c_get_clientdata(client);
*snr = (dev->fe_status & FE_HAS_LOCK) ? dev->snr : 0;
return 0;
}
static int si2183_read_signal_strength(struct dvb_frontend *fe, u16 *strength)
{
struct dtv_frontend_properties *c = &fe->dtv_property_cache;
int i;
*strength = 0;
for (i=0; i < c->strength.len; i++)
{
if (c->strength.stat[i].scale == FE_SCALE_RELATIVE)
*strength = (u16)c->strength.stat[i].uvalue;
else if (c->strength.stat[i].scale == FE_SCALE_DECIBEL)
*strength = ((100000 + (s32)c->strength.stat[i].svalue)/1000) * 656;
}
return 0;
}
static int si2183_read_ber(struct dvb_frontend *fe, u32 *ber)
{
struct i2c_client *client = fe->demodulator_priv;
struct si2183_dev *dev = i2c_get_clientdata(client);
struct si2183_cmd cmd;
int ret;
if (dev->fe_status & FE_HAS_LOCK) {
memcpy(cmd.args, "\x82\x00", 2);
cmd.wlen = 2;
cmd.rlen = 3;
ret = si2183_cmd_execute(client, &cmd);
if (ret) {
dev_err(&client->dev, "read_ber fe%d cmd_exec failed=%d\n", fe->id, ret);
goto err;
}
*ber = (u32)cmd.args[2] * cmd.args[1] & 0xf;
} else *ber = 1;
return 0;
err:
dev_err(&client->dev, "read_ber failed=%d\n", ret);
return ret;
}
static int si2183_read_ucblocks(struct dvb_frontend *fe, u32 *ucblocks)
{
struct i2c_client *client = fe->demodulator_priv;
struct si2183_dev *dev = i2c_get_clientdata(client);
struct si2183_cmd cmd;
int ret;
if (dev->stat_resp & 0x10) {
memcpy(cmd.args, "\x84\x00", 2);
cmd.wlen = 2;
cmd.rlen = 3;
ret = si2183_cmd_execute(client, &cmd);
if (ret) {
dev_err(&client->dev, "read_ucblocks fe%d cmd_exec failed=%d\n", fe->id, ret);
goto err;
}
*ucblocks = (u16)cmd.args[2] << 8 | cmd.args[1];
} else *ucblocks = 0;
return 0;
err:
dev_err(&client->dev, "read_ucblocks failed=%d\n", ret);
return ret;
}
static int si2183_set_dvbc(struct dvb_frontend *fe)
{
struct dtv_frontend_properties *c = &fe->dtv_property_cache;
struct i2c_client *client = fe->demodulator_priv;
struct si2183_dev *dev = i2c_get_clientdata(client);
struct si2183_cmd cmd;
int ret;
u16 prop;
if(dev->LED_switch)
dev->LED_switch(dev->base->i2c,6);
memcpy(cmd.args, "\x89\x41\x06\x12\x0\x0", 6);
cmd.args[1]= (dev->agc_mode &0x07)<<4 |0x1;
cmd.wlen = 6;
cmd.rlen = 3;
ret = si2183_cmd_execute(client, &cmd);
if(ret){
dev_err(&client->dev, "err set agc mode\n");
}
/* dvb-c mode */
prop = 0x38;
ret = si2183_set_prop(client, SI2183_PROP_MODE, &prop);
if (ret) {
dev_err(&client->dev, "err set dvb-c mode\n");
return ret;
}
switch (c->modulation) {
default:
case QAM_AUTO:
prop = 0;
break;
case QAM_16:
prop = 7;
break;
case QAM_32:
prop = 8;
break;
case QAM_64:
prop = 9;
break;
case QAM_128:
prop = 10;
break;
case QAM_256:
prop = 11;
break;
}
ret = si2183_set_prop(client, SI2183_PROP_DVBC_CONST, &prop);
if (ret) {
dev_err(&client->dev, "err set dvb-c constelation\n");
return ret;
}
/* symbol rate */
prop = c->symbol_rate / 1000;
ret = si2183_set_prop(client, SI2183_PROP_DVBC_SR, &prop);
if (ret) {
dev_err(&client->dev, "err set dvb-c symbol rate\n");
return ret;
}
return 0;
}
static int si2183_set_mcns(struct dvb_frontend *fe)
{
struct dtv_frontend_properties *c = &fe->dtv_property_cache;
struct i2c_client *client = fe->demodulator_priv;
struct si2183_dev *dev = i2c_get_clientdata(client);
struct si2183_cmd cmd;
int ret;
u16 prop,symb;
if(dev->LED_switch)
dev->LED_switch(dev->base->i2c,6);
memcpy(cmd.args, "\x89\x41\x06\x12\x0\x0", 6);
cmd.args[1]= (dev->agc_mode &0x07)<<4 |0x1;
cmd.wlen = 6;
cmd.rlen = 3;
ret = si2183_cmd_execute(client, &cmd);
if(ret){
dev_err(&client->dev, "err set agc mode\n");
}
/* mcns mode */
prop = 0x18;
ret = si2183_set_prop(client, SI2183_PROP_MODE, &prop);
if (ret) {
dev_err(&client->dev, "err set mcns mode\n");
return ret;
}
switch (c->modulation) {
default:
case QAM_64:
prop = 9;
symb = 5057;
break;
case QAM_256:
prop = 11;
symb = 5361;
break;
}
ret = si2183_set_prop(client, SI2183_PROP_MCNS_CONST, &prop);
if (ret) {
dev_err(&client->dev, "err set mcns constelation\n");
return ret;
}
/* symbol rate */
ret = si2183_set_prop(client, SI2183_PROP_MCNS_SR, &symb);
if (ret) {
dev_err(&client->dev, "err set mcns symbol rate\n");
return ret;
}
return 0;
}
static int gold_code_index (int gold_sequence_index)
{
unsigned int i, k , x_init;
u8 GOLD_PRBS[19] = {1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0};
for (k=0; k<gold_sequence_index; k++) {
GOLD_PRBS[18] = (GOLD_PRBS[0] + GOLD_PRBS[7])%2;
/* Shifting 18 first values */
for (i=0; i<18; i++)
GOLD_PRBS[i] = GOLD_PRBS[i+1];
}
x_init = 0;
for (i=0; i<18; i++) { x_init = x_init + GOLD_PRBS[i]*(1<<i); }
return x_init;
}
static int si2183_set_dvbs(struct dvb_frontend *fe)
{
struct dtv_frontend_properties *c = &fe->dtv_property_cache;
struct i2c_client *client = fe->demodulator_priv;
struct si2183_dev *dev = i2c_get_clientdata(client);
struct si2183_cmd cmd;
int ret;
u16 prop;
u32 pls_mode, pls_code;
if(dev->LED_switch)
dev->LED_switch(dev->base->i2c,2);
/*set SAT agc*/
memcpy(cmd.args, "\x8a\x1d\x12\x0\x0\x0", 6);
cmd.args[1]= dev->agc_mode|0x18;
cmd.wlen = 6;
cmd.rlen = 3;
ret = si2183_cmd_execute(client, &cmd);
if(ret){
dev_err(&client->dev, "err set agc mode\n");
}
/* set mode */
prop = 0x8;
switch (c->delivery_system) {
default:
case SYS_DVBS:
prop |= 0x80;
break;
case SYS_DVBS2:
prop |= 0x90;
break;
case SYS_DSS:
prop |= 0xa0;
break;
}
if (c->inversion)
prop |= 0x100;
ret = si2183_set_prop(client, SI2183_PROP_MODE, &prop);
if (ret) {
dev_err(&client->dev, "err set dvb-s/s2 mode\n");
return ret;
}
/* symbol rate */
prop = c->symbol_rate / 1000;
switch (c->delivery_system) {
default:
case SYS_DSS:
case SYS_DVBS:
ret = si2183_set_prop(client, SI2183_PROP_DVBS_SR, &prop);
break;
case SYS_DVBS2:
ret = si2183_set_prop(client, SI2183_PROP_DVBS2_SR, &prop);
/* stream_id selection */
cmd.args[0] = 0x71;
cmd.args[1] = (u8) c->stream_id;
cmd.args[2] = c->stream_id == NO_STREAM_ID_FILTER ? 0 : 1;
cmd.wlen = 3;
cmd.rlen = 1;
ret = si2183_cmd_execute(client, &cmd);
if (ret)
dev_warn(&client->dev, "dvb-s2: err selecting stream_id\n");
/* pls selection */
pls_mode = c->stream_id == NO_STREAM_ID_FILTER ? 0 : (c->stream_id >> 26) & 3;
pls_code = c->stream_id == NO_STREAM_ID_FILTER ? 0 : (c->stream_id >> 8) & 0x3FFFF;
if (pls_mode)
pls_code = gold_code_index(pls_code);
cmd.args[0] = 0x73;
cmd.args[1] = pls_code > 0;
cmd.args[2] = cmd.args[3] = 0;
cmd.args[4] = (u8) pls_code;
cmd.args[5] = (u8) (pls_code >> 8);
cmd.args[6] = (u8) (pls_code >> 16);
cmd.args[7] = (u8) (pls_code >> 24);
cmd.wlen = 8;
cmd.rlen = 1;
ret = si2183_cmd_execute(client, &cmd);
if (ret)
dev_warn(&client->dev, "dvb-s2: err set pls\n");
}
return 0;
}
static int si2183_set_dvbt(struct dvb_frontend *fe)
{
struct dtv_frontend_properties *c = &fe->dtv_property_cache;
struct i2c_client *client = fe->demodulator_priv;
struct si2183_dev *dev = i2c_get_clientdata(client);
struct si2183_cmd cmd;
int ret;
u16 prop;
if(dev->LED_switch)
dev->LED_switch(dev->base->i2c,1);
memcpy(cmd.args, "\x89\x41\x06\x12\x0\x0", 6);
cmd.args[1]= (dev->agc_mode &0x07)<<4 |0x1;
cmd.wlen = 6;
cmd.rlen = 3;
ret = si2183_cmd_execute(client, &cmd);
if(ret){
dev_err(&client->dev, "err set agc mode\n");
}
if (c->bandwidth_hz == 0) {
return -EINVAL;
} else if (c->bandwidth_hz <= 2000000)
prop = 0x02;
else if (c->bandwidth_hz <= 5000000)
prop = 0x05;
else if (c->bandwidth_hz <= 6000000)
prop = 0x06;
else if (c->bandwidth_hz <= 7000000)
prop = 0x07;
else if (c->bandwidth_hz <= 8000000)
prop = 0x08;
else if (c->bandwidth_hz <= 9000000)
prop = 0x09;
else if (c->bandwidth_hz <= 10000000)
prop = 0x0a;
else
prop = 0x0f;
switch (c->delivery_system) {
default:
case SYS_DVBT:
prop |= 0x20;
break;
case SYS_DVBT2:
prop |= 0x70;
break;
}
ret = si2183_set_prop(client, SI2183_PROP_MODE, &prop);
if (ret) {
dev_err(&client->dev, "err set dvb-t mode\n");
return ret;
}
/* hierarchy - HP = 0 / LP = 1 */
prop = c->hierarchy == HIERARCHY_1 ? 1 : 0;
ret = si2183_set_prop(client, SI2183_PROP_DVBT_HIER, &prop);
if (ret)
dev_warn(&client->dev, "dvb-t: err set hierarchy\n");
if (c->delivery_system == SYS_DVBT2) {
/* stream_id selection */
cmd.args[0] = 0x52;
cmd.args[1] = (u8) c->stream_id;
cmd.args[2] = c->stream_id == NO_STREAM_ID_FILTER ? 0 : 1;
cmd.wlen = 3;
cmd.rlen = 1;
ret = si2183_cmd_execute(client, &cmd);
if (ret)
dev_warn(&client->dev, "dvb-t2: err selecting stream_id\n");
/* dvb-t2 mode - any=0 / base=1 / lite=2 */
prop = 0;
ret = si2183_set_prop(client, SI2183_PROP_DVBT2_MODE, &prop);
if (ret)
dev_warn(&client->dev, "dvb-t2: err set mode\n");
}
return 0;
}
static int si2183_set_isdbt(struct dvb_frontend *fe)
{
struct dtv_frontend_properties *c = &fe->dtv_property_cache;
struct i2c_client *client = fe->demodulator_priv;
struct si2183_dev *dev = i2c_get_clientdata(client);
struct si2183_cmd cmd;
int ret;
u16 prop;
if(dev->LED_switch)
dev->LED_switch(dev->base->i2c,5);
memcpy(cmd.args, "\x89\x41\x06\x12\x0\x0", 6);
cmd.args[1]= (dev->agc_mode &0x07)<<4 |0x1;
cmd.wlen = 6;
cmd.rlen = 3;
ret = si2183_cmd_execute(client, &cmd);
if(ret){
dev_err(&client->dev, "err set agc mode\n");
}
if (c->bandwidth_hz == 0) {
return -EINVAL;
} else if (c->bandwidth_hz <= 2000000)
prop = 0x02;
else if (c->bandwidth_hz <= 5000000)
prop = 0x05;
else if (c->bandwidth_hz <= 6000000)
prop = 0x06;
else if (c->bandwidth_hz <= 7000000)
prop = 0x07;
else if (c->bandwidth_hz <= 8000000)
prop = 0x08;
else if (c->bandwidth_hz <= 9000000)
prop = 0x09;
else if (c->bandwidth_hz <= 10000000)
prop = 0x0a;
else
prop = 0x0f;
/* ISDB-T mode */
prop |= 0x40;
ret = si2183_set_prop(client, SI2183_PROP_MODE, &prop);
if (ret) {
dev_err(&client->dev, "err set dvb-t mode\n");
return ret;
}
return 0;
}
static int si2183_set_frontend(struct dvb_frontend *fe)
{
struct i2c_client *client = fe->demodulator_priv;
struct si2183_dev *dev = i2c_get_clientdata(client);
struct dtv_frontend_properties *c = &fe->dtv_property_cache;
int ret;
struct si2183_cmd cmd;
dev_dbg(&client->dev,
"delivery_system=%u modulation=%u frequency=%u bandwidth_hz=%u symbol_rate=%u inversion=%u stream_id=%d\n",