Files
linux_media/drivers/media/dvb-frontends/si2183.c

1843 lines
40 KiB
C

/*
* 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",
c->delivery_system, c->modulation, c->frequency,
c->bandwidth_hz, c->symbol_rate, c->inversion,
c->stream_id);
if (!dev->active_fe) {
ret = -EAGAIN;
goto err;
}
if(dev->RF_switch)
{
switch (c->delivery_system) {
case SYS_DVBT:
case SYS_DVBT2:
case SYS_DVBC_ANNEX_A:
case SYS_DVBC_ANNEX_B:
case SYS_ISDBT:
dev->RF_switch(dev->base->i2c,dev->rf_in,1);
break;
case SYS_DVBS:
case SYS_DVBS2:
case SYS_DSS:
default:
dev->RF_switch(dev->base->i2c,dev->rf_in,0);
break;
}
}
if(dev->TS_switch)
dev->TS_switch(dev->base->i2c,1);
if (fe->ops.tuner_ops.set_params) {
#ifndef SI2183_USE_I2C_MUX
if (fe->ops.i2c_gate_ctrl)
fe->ops.i2c_gate_ctrl(fe, 1);
#endif
ret = fe->ops.tuner_ops.set_params(fe);
#ifndef SI2183_USE_I2C_MUX
if (fe->ops.i2c_gate_ctrl)
fe->ops.i2c_gate_ctrl(fe, 0);
#endif
if (ret) {
dev_err(&client->dev, "err setting tuner params\n");
goto err;
}
}
switch (c->delivery_system) {
case SYS_DVBT:
case SYS_DVBT2:
ret = si2183_set_dvbt(fe);
break;
case SYS_DVBC_ANNEX_A:
ret = si2183_set_dvbc(fe);
break;
case SYS_DVBC_ANNEX_B:
ret= si2183_set_mcns(fe);
break;
case SYS_ISDBT:
ret = si2183_set_isdbt(fe);
break;
case SYS_DVBS:
case SYS_DVBS2:
case SYS_DSS:
ret = si2183_set_dvbs(fe);
break;
default:
ret = -EINVAL;
goto err;
}
/* dsp restart */
memcpy(cmd.args, "\x85", 1);
cmd.wlen = 1;
cmd.rlen = 1;
ret = si2183_cmd_execute(client, &cmd);
if (ret) {
dev_err(&client->dev, "err restarting dsp\n");
return ret;
}
dev->delivery_system = c->delivery_system;
return 0;
err:
dev_err(&client->dev, "set_params failed=%d\n", ret);
return ret;
}
static int si2183_init(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 = 0, len, remaining;
const struct firmware *fw;
const char *fw_name;
struct si2183_cmd cmd;
unsigned int chip_id;
u16 prop;
dev_dbg(&client->dev, "\n");
if (dev->active_fe) {
dev->active_fe |= (1 << fe->id);
return 0;
}
c->cnr.len = 1;
c->cnr.stat[0].scale = FE_SCALE_DECIBEL;
/* initialize */
memcpy(cmd.args, "\xc0\x12\x00\x0c\x00\x0d\x16\x00\x00\x00\x00\x00\x00", 13);
if(dev->start_clk_mode == 1){
cmd.args[3] =0;
cmd.args[5] = 0x6;
}
cmd.wlen = 13;
cmd.rlen = 0;
ret = si2183_cmd_execute(client, &cmd);
if (ret)
goto err;
if (dev->fw_loaded) {
/* resume */
memcpy(cmd.args, "\xc0\x06\x08\x0f\x00\x20\x21\x01", 8);
if(dev->start_clk_mode==1)
cmd.args[6]=0x31;
cmd.wlen = 8;
cmd.rlen = 1;
ret = si2183_cmd_execute(client, &cmd);
if (ret)
goto err;
memcpy(cmd.args, "\x85", 1);
cmd.wlen = 1;
cmd.rlen = 1;
ret = si2183_cmd_execute(client, &cmd);
if (ret)
goto err;
goto warm;
}
/* power up */
memcpy(cmd.args, "\xc0\x06\x01\x0f\x00\x20\x20\x01", 8);
if(dev->start_clk_mode ==1 ){
cmd.args[6] = 0x30;
}
cmd.wlen = 8;
cmd.rlen = 1;
ret = si2183_cmd_execute(client, &cmd);
if (ret)
goto err;
/* query chip revision */
memcpy(cmd.args, "\x02", 1);
cmd.wlen = 1;
cmd.rlen = 13;
ret = si2183_cmd_execute(client, &cmd);
if (ret)
goto err;
chip_id = cmd.args[1] << 24 | cmd.args[2] << 16 | cmd.args[3] << 8 |
cmd.args[4] << 0;
#define SI2183_B60 ('B' << 24 | 83 << 16 | '6' << 8 | '0' << 0)
switch (chip_id) {
case SI2183_B60:
fw_name = SI2183_B60_FIRMWARE;
break;
default:
dev_err(&client->dev, "unknown chip version Si21%d-%c%c%c\n",
cmd.args[2], cmd.args[1],
cmd.args[3], cmd.args[4]);
ret = -EINVAL;
goto err;
}
dev_info(&client->dev, "found a 'Silicon Labs Si21%d-%c%c%c'\n",
cmd.args[2], cmd.args[1], cmd.args[3], cmd.args[4]);
ret = request_firmware(&fw, fw_name, &client->dev);
if (ret) {
dev_err(&client->dev,
"firmware file '%s' not found\n",
fw_name);
goto err;
}
dev_info(&client->dev, "downloading firmware from file '%s'\n",
fw_name);
for (remaining = fw->size; remaining > 0; remaining -= 17) {
len = fw->data[fw->size - remaining];
if (len > SI2183_ARGLEN) {
ret = -EINVAL;
break;
}
memcpy(cmd.args, &fw->data[(fw->size - remaining) + 1], len);
cmd.wlen = len;
cmd.rlen = 1;
ret = si2183_cmd_execute(client, &cmd);
if (ret)
break;
}
release_firmware(fw);
if (ret) {
dev_err(&client->dev, "firmware download failed %d\n", ret);
goto err;
}
memcpy(cmd.args, "\x01\x01", 2);
cmd.wlen = 2;
cmd.rlen = 1;
ret = si2183_cmd_execute(client, &cmd);
if (ret)
goto err;
/* query firmware version */
memcpy(cmd.args, "\x11", 1);
cmd.wlen = 1;
cmd.rlen = 10;
ret = si2183_cmd_execute(client, &cmd);
if (ret)
goto err;
dev_info(&client->dev, "firmware version: %c.%c.%d\n",
cmd.args[6], cmd.args[7], cmd.args[8]);
/* set ts mode */
prop = 0x10 | dev->ts_mode | (dev->ts_clock_gapped ? 0x40 : 0);
ret = si2183_set_prop(client, 0x1001, &prop);
if (ret) {
dev_err(&client->dev, "err set ts mode\n");
}
/* FER resol */
prop = 0x12;
ret = si2183_set_prop(client, 0x100c, &prop);
if (ret) {
dev_err(&client->dev, "err set FER resol\n");
return ret;
}
/* DD IEN */
prop = 0x00;
ret = si2183_set_prop(client, 0x1006, &prop);
if (ret) {
dev_err(&client->dev, "err set dd ien\n");
return ret;
}
/* int sense */
prop = 0x2000;
ret = si2183_set_prop(client, 0x1007, &prop);
if (ret) {
dev_err(&client->dev, "err set int sense\n");
return ret;
}
/* Control of SQI computation */
prop = 0x1e;
ret = si2183_set_prop(client, 0x100f, &prop);
if (ret) {
dev_err(&client->dev, "err set sqi comp\n");
return ret;
}
/* Transport Stream setting for parallel mode */
prop = 0x0104 | (dev->ts_clock_inv ? 0x0000 : 0x1000);
ret = si2183_set_prop(client, 0x1009, &prop);
if (ret) {
dev_err(&client->dev, "err set par_ts\n");
return ret;
}
/* Transport Stream setting for serial mode */
prop = 0x230C | (dev->ts_clock_inv ? 0x0000 : 0x1000);
ret = si2183_set_prop(client, 0x1008, &prop);
if (ret) {
dev_err(&client->dev, "err set ser_ts\n");
return ret;
}
/* Transport Stream setting for parallel mode - secondary*/
prop = 0x08e3;
ret = si2183_set_prop(client, 0x1015, &prop);
if (ret) {
dev_err(&client->dev, "err set int par_ts_sec\n");
return ret;
}
/* Transport Stream setting for serial mode - secondary*/
prop = 0x01c7;
ret = si2183_set_prop(client, 0x1016, &prop);
if (ret) {
dev_err(&client->dev, "err set int ser_ts_sec\n");
return ret;
}
dev->fw_loaded = true;
warm:
dev->active_fe |= (1 << fe->id);
return 0;
err:
dev_dbg(&client->dev, "init failed=%d\n", ret);
return ret;
}
static int si2183_sleep(struct dvb_frontend *fe)
{
struct i2c_client *client = fe->demodulator_priv;
struct si2183_dev *dev = i2c_get_clientdata(client);
int ret;
struct si2183_cmd cmd;
dev_dbg(&client->dev, "\n");
dev->active_fe &= ~(1 << fe->id);
if (dev->active_fe)
return 0;
memcpy(cmd.args, "\x13", 1);
cmd.wlen = 1;
cmd.rlen = 0;
ret = si2183_cmd_execute(client, &cmd);
if (ret)
goto err;
return 0;
err:
dev_dbg(&client->dev, "failed=%d\n", ret);
return ret;
}
static int si2183_get_tune_settings(struct dvb_frontend *fe,
struct dvb_frontend_tune_settings *s)
{
s->min_delay_ms = 900;
return 0;
}
#ifdef SI2183_USE_I2C_MUX
#if LINUX_VERSION_CODE >= KERNEL_VERSION(4, 7, 0)
static int si2183_select(struct i2c_mux_core *muxc, u32 chan)
{
struct i2c_client *client = i2c_mux_priv(muxc);
#else
static int si2183_select(struct i2c_adapter *adap, void *mux_priv, u32 chan)
{
struct i2c_client *client = mux_priv;
#endif
int ret;
struct si2183_cmd cmd;
/* open I2C gate */
memcpy(cmd.args, "\xc0\x0d\x01", 3);
cmd.wlen = 3;
cmd.rlen = 0;
ret = si2183_cmd_execute_unlocked(client, &cmd);
if (ret)
goto err;
return 0;
err:
dev_dbg(&client->dev, "failed=%d\n", ret);
return ret;
}
#if LINUX_VERSION_CODE >= KERNEL_VERSION(4, 7, 0)
static int si2183_deselect(struct i2c_mux_core *muxc, u32 chan)
{
struct i2c_client *client = i2c_mux_priv(muxc);
#else
static int si2183_deselect(struct i2c_adapter *adap, void *mux_priv, u32 chan)
{
struct i2c_client *client = mux_priv;
#endif
int ret;
struct si2183_cmd cmd;
/* close I2C gate */
memcpy(cmd.args, "\xc0\x0d\x00", 3);
cmd.wlen = 3;
cmd.rlen = 0;
ret = si2183_cmd_execute_unlocked(client, &cmd);
if (ret)
goto err;
return 0;
err:
dev_dbg(&client->dev, "failed=%d\n", ret);
return ret;
}
#else
static int i2c_gate_ctrl(struct dvb_frontend* fe, int enable)
{
struct i2c_client *client = fe->demodulator_priv;
struct si2183_dev *dev = i2c_get_clientdata(client);
struct si2183_cmd cmd;
memcpy(cmd.args, "\xc0\x0d\x00", 3);
if (enable)
cmd.args[2] = 1;
cmd.wlen = 3;
cmd.rlen = 0;
return si2183_cmd_execute(dev->base->i2c_gate_client, &cmd);
}
#endif
static int si2183_tune(struct dvb_frontend *fe, bool re_tune,
unsigned int mode_flags, unsigned int *delay, enum fe_status *status)
{
*delay = HZ / 5;
if (re_tune) {
int ret = si2183_set_frontend(fe);
if (ret)
return ret;
}
return si2183_read_status(fe, status);
}
static enum dvbfe_algo si2183_get_algo(struct dvb_frontend *fe)
{
return DVBFE_ALGO_HW;
}
static int si2183_set_property(struct dvb_frontend *fe,
u32 cmd, u32 data)
{
int ret = 0;
switch (cmd) {
case DTV_DELIVERY_SYSTEM:
switch (data) {
case SYS_DVBS:
case SYS_DVBS2:
case SYS_DSS:
fe->ops.info.frequency_min_hz = 950 * MHz;
fe->ops.info.frequency_max_hz = 2150 * MHz;
fe->ops.info.frequency_stepsize_hz = 0;
break;
case SYS_ISDBT:
fe->ops.info.frequency_min_hz = 42 * MHz;
fe->ops.info.frequency_max_hz = 1002 * MHz;
fe->ops.info.frequency_stepsize_hz = 0;
break;
case SYS_DVBC_ANNEX_A:
case SYS_DVBC_ANNEX_B:
fe->ops.info.frequency_min_hz = 47 * MHz;
fe->ops.info.frequency_max_hz = 862 * MHz;
fe->ops.info.frequency_stepsize_hz = 62500;
break;
case SYS_DVBT:
case SYS_DVBT2:
default:
fe->ops.info.frequency_min_hz = 174 * MHz;
fe->ops.info.frequency_max_hz = 862 * MHz;
fe->ops.info.frequency_stepsize_hz = 250000;
break;
}
break;
default:
break;
}
return ret;
}
static int send_diseqc_cmd(struct dvb_frontend *fe,
u8 cont_tone, u8 tone_burst, u8 burst_sel,
u8 end_seq, u8 msg_len, u8 *msg)
{
struct i2c_client *client = fe->demodulator_priv;
struct si2183_cmd cmd;
u8 enable = 1;
cmd.args[0] = 0x8c;
cmd.args[1] = enable | (cont_tone << 1)
| (tone_burst << 2) | (burst_sel << 3)
| (end_seq << 4) | (msg_len << 5);
if (msg_len > 0)
memcpy(&cmd.args[2], msg, msg_len);
cmd.wlen = 8;
cmd.rlen = 1;
return si2183_cmd_execute(client, &cmd);
}
static int si2183_set_tone(struct dvb_frontend *fe, enum fe_sec_tone_mode tone)
{
struct i2c_client *client = fe->demodulator_priv;
int ret;
u8 cont_tone;
switch (tone) {
case SEC_TONE_ON:
cont_tone = 1;
break;
case SEC_TONE_OFF:
cont_tone = 0;
break;
default:
return -EINVAL;
}
ret = send_diseqc_cmd(fe, cont_tone, 0, 0, 1, 0, NULL);
if (ret)
goto err;
return 0;
err:
dev_err(&client->dev, "set_tone failed=%d\n", ret);
return ret;
}
static int si2183_diseqc_send_burst(struct dvb_frontend *fe,
enum fe_sec_mini_cmd burst)
{
struct i2c_client *client = fe->demodulator_priv;
int ret;
u8 burst_sel;
switch (burst) {
case SEC_MINI_A:
burst_sel = 0;
break;
case SEC_MINI_B:
burst_sel = 1;
break;
default:
return -EINVAL;
}
ret = send_diseqc_cmd(fe, 0, 1, burst_sel, 1, 0, NULL);
if (ret)
goto err;
return 0;
err:
dev_err(&client->dev, "set_tone failed=%d\n", ret);
return ret;
}
static int si2183_diseqc_send_msg(struct dvb_frontend *fe,
struct dvb_diseqc_master_cmd *d)
{
struct i2c_client *client = fe->demodulator_priv;
int ret;
u8 remaining = d->msg_len;
u8 *p = d->msg;
u8 len = 0;
while (remaining > 0) {
p += len;
len = (remaining > 6) ? 6 : remaining;
remaining -= len;
ret = send_diseqc_cmd(fe, 0, 0, 0,
(remaining == 0) ? 1 : 0, len, p);
if (ret)
goto err;
msleep(50);
}
return 0;
err:
dev_err(&client->dev, "set_tone failed=%d\n", ret);
return ret;
}
static void spi_read(struct dvb_frontend *fe, struct ecp3_info *ecp3inf)
{
struct i2c_client *client = fe->demodulator_priv;
struct si2183_dev *dev = i2c_get_clientdata(client);
if (dev->read_properties)
dev->read_properties(client->adapter,ecp3inf->reg, &(ecp3inf->data));
return ;
}
static void spi_write(struct dvb_frontend *fe,struct ecp3_info *ecp3inf)
{
struct i2c_client *client = fe->demodulator_priv;
struct si2183_dev *dev = i2c_get_clientdata(client);
if (dev->write_properties)
dev->write_properties(client->adapter,ecp3inf->reg, ecp3inf->data);
return ;
}
static void eeprom_read(struct dvb_frontend *fe, struct eeprom_info *eepinf)
{
struct i2c_client *client = fe->demodulator_priv;
struct si2183_dev *dev = i2c_get_clientdata(client);
if (dev->read_eeprom)
dev->read_eeprom(client->adapter,eepinf->reg, &(eepinf->data));
return ;
}
static void eeprom_write(struct dvb_frontend *fe,struct eeprom_info *eepinf)
{
struct i2c_client *client = fe->demodulator_priv;
struct si2183_dev *dev = i2c_get_clientdata(client);
if (dev->write_eeprom)
dev->write_eeprom(client->adapter,eepinf->reg, eepinf->data);
return ;
}
static const struct dvb_frontend_ops si2183_ops = {
.delsys = {SYS_DVBT, SYS_DVBT2,
SYS_ISDBT,
SYS_DVBC_ANNEX_A,SYS_DVBC_ANNEX_B,
SYS_DVBS, SYS_DVBS2, SYS_DSS},
.info = {
.name = "Silicon Labs Si2183",
.symbol_rate_min = 1000000,
.symbol_rate_max = 45000000,
.caps = FE_CAN_FEC_1_2 |
FE_CAN_FEC_2_3 |
FE_CAN_FEC_3_4 |
FE_CAN_FEC_5_6 |
FE_CAN_FEC_7_8 |
FE_CAN_FEC_AUTO |
FE_CAN_QPSK |
FE_CAN_QAM_16 |
FE_CAN_QAM_32 |
FE_CAN_QAM_64 |
FE_CAN_QAM_128 |
FE_CAN_QAM_256 |
FE_CAN_QAM_AUTO |
FE_CAN_TRANSMISSION_MODE_AUTO |
FE_CAN_GUARD_INTERVAL_AUTO |
FE_CAN_HIERARCHY_AUTO |
FE_CAN_MUTE_TS |
FE_CAN_2G_MODULATION |
FE_CAN_MULTISTREAM
},
.get_tune_settings = si2183_get_tune_settings,
.init = si2183_init,
.sleep = si2183_sleep,
.set_frontend = si2183_set_frontend,
.read_status = si2183_read_status,
.read_signal_strength = si2183_read_signal_strength,
.read_snr = si2183_read_snr,
.read_ber = si2183_read_ber,
.read_ucblocks = si2183_read_ucblocks,
.get_frontend_algo = si2183_get_algo,
.tune = si2183_tune,
.set_property = si2183_set_property,
.set_tone = si2183_set_tone,
.diseqc_send_burst = si2183_diseqc_send_burst,
.diseqc_send_master_cmd = si2183_diseqc_send_msg,
#ifndef SI2183_USE_I2C_MUX
.i2c_gate_ctrl = i2c_gate_ctrl,
#endif
.spi_read = spi_read,
.spi_write = spi_write,
.eeprom_read = eeprom_read,
.eeprom_write = eeprom_write,
};
static struct si_base *match_base(struct i2c_adapter *i2c, u8 adr)
{
struct si_base *p;
list_for_each_entry(p, &silist, silist)
if (p->i2c == i2c)// && p->adr == adr) lja: TO FIX
return p;
return NULL;
}
static int si2183_probe(struct i2c_client *client)
{
struct si2183_config *config = client->dev.platform_data;
struct si2183_dev *dev;
struct si_base *base;
int ret;
dev_dbg(&client->dev, "\n");
dev = kzalloc(sizeof(*dev), GFP_KERNEL);
if (!dev) {
ret = -ENOMEM;
dev_err(&client->dev, "kzalloc() failed\n");
goto err;
}
base = match_base(client->adapter, client->addr);
if (base) {
base->count++;
dev->base = base;
} else {
base = kzalloc(sizeof(struct si_base), GFP_KERNEL);
if (!base)
goto err_kfree;
base->i2c = client->adapter;
base->adr = client->addr;
base->count = 1;
dev->base = base;
list_add(&base->silist, &silist);
mutex_init(&base->i2c_mutex);
#ifdef SI2183_USE_I2C_MUX
#if LINUX_VERSION_CODE >= KERNEL_VERSION(4, 7, 0)
/* create mux i2c adapter for tuner */
base->muxc = i2c_mux_alloc(client->adapter, &client->adapter->dev,
1, 0, I2C_MUX_LOCKED,
si2183_select, si2183_deselect);
if (!base->muxc) {
ret = -ENOMEM;
goto err_base_kfree;
}
base->muxc->priv = client;
ret = i2c_mux_add_adapter(base->muxc, 0, 0);
if (ret)
goto err_base_kfree;
base->tuner_adapter = base->muxc->adapter[0];
#else
/* create mux i2c adapter for tuners */
base->tuner_adapter = i2c_add_mux_adapter(client->adapter, &client->adapter->dev,
client, 0, 0, 0, si2183_select, si2183_deselect);
if (base->tuner_adapter == NULL) {
ret = -ENODEV;
goto err_base_kfree;
}
#endif
#else
base->tuner_adapter = client->adapter;
base->i2c_gate_client = client;
#endif
}
/* create dvb_frontend */
memcpy(&dev->fe.ops, &si2183_ops, sizeof(struct dvb_frontend_ops));
dev->fe.demodulator_priv = client;
*config->i2c_adapter = base->tuner_adapter;
*config->fe = &dev->fe;
dev->ts_mode = config->ts_mode;
dev->ts_clock_inv = config->ts_clock_inv;
dev->ts_clock_gapped = config->ts_clock_gapped;
dev->agc_mode = config->agc_mode;
dev->RF_switch = config->RF_switch;
dev->rf_in = config->rf_in;
dev->fw_loaded = false;
dev->delivery_system = 0;
dev->snr = 0;
dev->stat_resp = 0;
dev->active_fe = 0;
dev->start_clk_mode = config->start_clk_mode;
dev->TS_switch = config->TS_switch;
dev->LED_switch = config->LED_switch;
dev->write_properties = config->write_properties;
dev->read_properties = config->read_properties;
dev->write_eeprom = config->write_eeprom;
dev->read_eeprom = config->read_eeprom;
i2c_set_clientdata(client, dev);
#ifndef SI2183_USE_I2C_MUX
/* leave gate open for tuner to init */
i2c_gate_ctrl(&dev->fe, 1);
#endif
dev_info(&client->dev, "Silicon Labs Si2183 successfully attached\n");
return 0;
err_base_kfree:
kfree(base);
err_kfree:
kfree(dev);
err:
dev_dbg(&client->dev, "probe failed=%d\n", ret);
return ret;
}
static void si2183_remove(struct i2c_client *client)
{
struct si2183_dev *dev = i2c_get_clientdata(client);
dev_dbg(&client->dev, "\n");
dev->base->count--;
if (dev->base->count == 0) {
#ifdef SI2183_USE_I2C_MUX
#if LINUX_VERSION_CODE >= KERNEL_VERSION(4, 7, 0)
i2c_mux_del_adapters(dev->base->muxc);
#else
i2c_del_mux_adapter(dev->base->tuner_adapter);
#endif
#endif
list_del(&dev->base->silist);
kfree(dev->base);
}
dev->fe.ops.release = NULL;
dev->fe.demodulator_priv = NULL;
kfree(dev);
}
static const struct i2c_device_id si2183_id_table[] = {
{"si2183", 0},
{}
};
MODULE_DEVICE_TABLE(i2c, si2183_id_table);
static struct i2c_driver si2183_driver = {
.driver = {
.name = "si2183",
},
.probe = si2183_probe,
.remove = si2183_remove,
.id_table = si2183_id_table,
};
module_i2c_driver(si2183_driver);
MODULE_AUTHOR("Luis Alves <ljalvs@gmail.com>");
MODULE_DESCRIPTION("Silicon Labs Si2183 DVB-T/T2/C/C2/S/S2 demodulator driver");
MODULE_LICENSE("GPL");