// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Silicon Labs Si2168 DVB-T/T2/C demodulator driver
*
* Copyright (C) 2014 Antti Palosaari <[email protected]>
*/
#include <linux/delay.h>
#include "si2168_priv.h"
static const struct dvb_frontend_ops si2168_ops;
static void cmd_init(struct si2168_cmd *cmd, const u8 *buf, int wlen, int rlen)
{
memcpy(cmd->args, buf, wlen);
cmd->wlen = wlen;
cmd->rlen = rlen;
}
/* execute firmware command */
static int si2168_cmd_execute(struct i2c_client *client, struct si2168_cmd *cmd)
{
struct si2168_dev *dev = i2c_get_clientdata(client);
int ret;
unsigned long timeout;
mutex_lock(&dev->i2c_mutex);
if (cmd->wlen) {
/* write cmd and args for firmware */
ret = i2c_master_send(client, cmd->args, cmd->wlen);
if (ret < 0) {
goto err_mutex_unlock;
} else if (ret != cmd->wlen) {
ret = -EREMOTEIO;
goto err_mutex_unlock;
}
}
if (cmd->rlen) {
/* wait cmd execution terminate */
#define TIMEOUT 70
timeout = jiffies + msecs_to_jiffies(TIMEOUT);
while (!time_after(jiffies, timeout)) {
ret = i2c_master_recv(client, cmd->args, cmd->rlen);
if (ret < 0) {
goto err_mutex_unlock;
} else if (ret != cmd->rlen) {
ret = -EREMOTEIO;
goto err_mutex_unlock;
}
/* 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_mutex_unlock;
}
if (!((cmd->args[0] >> 7) & 0x01)) {
ret = -ETIMEDOUT;
goto err_mutex_unlock;
}
}
mutex_unlock(&dev->i2c_mutex);
return 0;
err_mutex_unlock:
mutex_unlock(&dev->i2c_mutex);
dev_dbg(&client->dev, "failed=%d\n", ret);
return ret;
}
static int si2168_ts_bus_ctrl(struct dvb_frontend *fe, int acquire)
{
struct i2c_client *client = fe->demodulator_priv;
struct si2168_dev *dev = i2c_get_clientdata(client);
struct si2168_cmd cmd;
int ret = 0;
dev_dbg(&client->dev, "%s acquire: %d\n", __func__, acquire);
/* set manual value */
if (dev->ts_mode & SI2168_TS_CLK_MANUAL) {
cmd_init(&cmd, "\x14\x00\x0d\x10\xe8\x03", 6, 4);
ret = si2168_cmd_execute(client, &cmd);
if (ret)
return ret;
}
/* set TS_MODE property */
cmd_init(&cmd, "\x14\x00\x01\x10\x10\x00", 6, 4);
if (dev->ts_mode & SI2168_TS_CLK_MANUAL)
cmd.args[4] = SI2168_TS_CLK_MANUAL;
if (acquire)
cmd.args[4] |= dev->ts_mode;
else
cmd.args[4] |= SI2168_TS_TRISTATE;
if (dev->ts_clock_gapped)
cmd.args[4] |= 0x40;
ret = si2168_cmd_execute(client, &cmd);
return ret;
}
static int si2168_read_status(struct dvb_frontend *fe, enum fe_status *status)
{
struct i2c_client *client = fe->demodulator_priv;
struct si2168_dev *dev = i2c_get_clientdata(client);
struct dtv_frontend_properties *c = &fe->dtv_property_cache;
int ret, i;
unsigned int utmp, utmp1, utmp2;
struct si2168_cmd cmd;
*status = 0;
if (!dev->active) {
ret = -EAGAIN;
goto err;
}
switch (c->delivery_system) {
case SYS_DVBT:
cmd_init(&cmd, "\xa0\x01", 2, 13);
break;
case SYS_DVBC_ANNEX_A:
cmd_init(&cmd, "\x90\x01", 2, 9);
break;
case SYS_DVBT2:
cmd_init(&cmd, "\x50\x01", 2, 14);
break;
default:
ret = -EINVAL;
goto err;
}
ret = si2168_cmd_execute(client, &cmd);
if (ret)
goto err;
switch ((cmd.args[2] >> 1) & 0x03) {
case 0x01:
*status = FE_HAS_SIGNAL | FE_HAS_CARRIER;
break;
case 0x03:
*status = FE_HAS_SIGNAL | FE_HAS_CARRIER | FE_HAS_VITERBI |
FE_HAS_SYNC | FE_HAS_LOCK;
break;
}
dev->fe_status = *status;
if (*status & FE_HAS_LOCK) {
c->cnr.len = 1;
c->cnr.stat[0].scale = FE_SCALE_DECIBEL;
c->cnr.stat[0].svalue = cmd.args[3] * 1000 / 4;
} else {
c->cnr.len = 1;
c->cnr.stat[0].scale = FE_SCALE_NOT_AVAILABLE;
}
dev_dbg(&client->dev, "status=%02x args=%*ph\n",
*status, cmd.rlen, cmd.args);
/* BER */
if (*status & FE_HAS_VITERBI) {
cmd_init(&cmd, "\x82\x00", 2, 3);
ret = si2168_cmd_execute(client, &cmd);
if (ret)
goto err;
/*
* Firmware returns [0, 255] mantissa and [0, 8] exponent.
* Convert to DVB API: mantissa * 10^(8 - exponent) / 10^8
*/
utmp = clamp(8 - cmd.args[1], 0, 8);
for (i = 0, utmp1 = 1; i < utmp; i++)
utmp1 = utmp1 * 10;
utmp1 = cmd.args[2] * utmp1;
utmp2 = 100000000; /* 10^8 */
dev_dbg(&client->dev,
"post_bit_error=%u post_bit_count=%u ber=%u*10^-%u\n",
utmp1, utmp2, cmd.args[2], cmd.args[1]);
c->post_bit_error.stat[0].scale = FE_SCALE_COUNTER;
c->post_bit_error.stat[0].uvalue += utmp1;
c->post_bit_count.stat[0].scale = FE_SCALE_COUNTER;
c->post_bit_count.stat[0].uvalue += utmp2;
} else {
c->post_bit_error.stat[0].scale = FE_SCALE_NOT_AVAILABLE;
c->post_bit_count.stat[0].scale = FE_SCALE_NOT_AVAILABLE;
}
/* UCB */
if (*status & FE_HAS_SYNC) {
cmd_init(&cmd, "\x84\x01", 2, 3);
ret = si2168_cmd_execute(client, &cmd);
if (ret)
goto err;
utmp1 = cmd.args[2] << 8 | cmd.args[1] << 0;
dev_dbg(&client->dev, "block_error=%u\n", utmp1);
/* Sometimes firmware returns bogus value */
if (utmp1 == 0xffff)
utmp1 = 0;
c->block_error.stat[0].scale = FE_SCALE_COUNTER;
c->block_error.stat[0].uvalue += utmp1;
} else {
c->block_error.stat[0].scale = FE_SCALE_NOT_AVAILABLE;
}
return 0;
err:
dev_dbg(&client->dev, "failed=%d\n", ret);
return ret;
}
static int si2168_set_frontend(struct dvb_frontend *fe)
{
struct i2c_client *client = fe->demodulator_priv;
struct si2168_dev *dev = i2c_get_clientdata(client);
struct dtv_frontend_properties *c = &fe->dtv_property_cache;
int ret;
struct si2168_cmd cmd;
u8 bandwidth, delivery_system;
dev_dbg(&client->dev,
"delivery_system=%u modulation=%u frequency=%u bandwidth_hz=%u symbol_rate=%u inversion=%u stream_id=%u\n",
c->delivery_system, c->modulation, c->frequency,
c->bandwidth_hz, c->symbol_rate, c->inversion,
c->stream_id);
if (!dev->active) {
ret = -EAGAIN;
goto err;
}
switch (c->delivery_system) {
case SYS_DVBT:
delivery_system = 0x20;
break;
case SYS_DVBC_ANNEX_A:
delivery_system = 0x30;
break;
case SYS_DVBT2:
delivery_system = 0x70;
break;
default:
ret = -EINVAL;
goto err;
}
if (c->bandwidth_hz == 0) {
ret = -EINVAL;
goto err;
} else if (c->bandwidth_hz <= 2000000)
bandwidth = 0x02;
else if (c->bandwidth_hz <= 5000000)
bandwidth = 0x05;
else if (c->bandwidth_hz <= 6000000)
bandwidth = 0x06;
else if (c->bandwidth_hz <= 7000000)
bandwidth = 0x07;
else if (c->bandwidth_hz <= 8000000)
bandwidth = 0x08;
else if (c->bandwidth_hz <= 9000000)
bandwidth = 0x09;
else if (c->bandwidth_hz <= 10000000)
bandwidth = 0x0a;
else
bandwidth = 0x0f;
/* program tuner */
if (fe->ops.tuner_ops.set_params) {
ret = fe->ops.tuner_ops.set_params(fe);
if (ret)
goto err;
}
cmd_init(&cmd, "\x88\x02\x02\x02\x02", 5, 5);
ret = si2168_cmd_execute(client, &cmd);
if (ret)
goto err;
/* that has no big effect */
if (c->delivery_system == SYS_DVBT)
cmd_init(&cmd, "\x89\x21\x06\x11\xff\x98", 6, 3);
else if (c->delivery_system == SYS_DVBC_ANNEX_A)
cmd_init(&cmd, "\x89\x21\x06\x11\x89\xf0", 6, 3);
else if (c->delivery_system == SYS_DVBT2)
cmd_init(&cmd, "\x89\x21\x06\x11\x89\x20", 6, 3);
ret = si2168_cmd_execute(client, &cmd);
if (ret)
goto err;
if (c->delivery_system == SYS_DVBT2) {
/* select PLP */
cmd.args[0] = 0x52;
cmd.args[1] = c->stream_id & 0xff;
cmd.args[2] = c->stream_id == NO_STREAM_ID_FILTER ? 0 : 1;
cmd.wlen = 3;
cmd.rlen = 1;
ret = si2168_cmd_execute(client, &cmd);
if (ret)
goto err;
}
cmd_init(&cmd, "\x51\x03", 2, 12);
ret = si2168_cmd_execute(client, &cmd);
if (ret)
goto err;
cmd_init(&cmd, "\x12\x08\x04", 3, 3);
ret = si2168_cmd_execute(client, &cmd);
if (ret)
goto err;
cmd_init(&cmd, "\x14\x00\x0c\x10\x12\x00", 6, 4);
ret = si2168_cmd_execute(client, &cmd);
if (ret)
goto err;
cmd_init(&cmd, "\x14\x00\x06\x10\x24\x00", 6, 4);
ret = si2168_cmd_execute(client, &cmd);
if (ret)
goto err;
cmd_init(&cmd, "\x14\x00\x07\x10\x00\x24", 6, 4);
ret = si2168_cmd_execute(client, &cmd);
if (ret)
goto err;
cmd_init(&cmd, "\x14\x00\x0a\x10\x00\x00", 6, 4);
cmd.args[4] = delivery_system | bandwidth;
if (dev->spectral_inversion)
cmd.args[5] |= 1;
ret = si2168_cmd_execute(client, &cmd);
if (ret)
goto err;
/* set DVB-C symbol rate */
if (c->delivery_system == SYS_DVBC_ANNEX_A) {
cmd_init(&cmd, "\x14\x00\x02\x11\x00\x00", 6, 4);
cmd.args[4] = ((c->symbol_rate / 1000) >> 0) & 0xff;
cmd.args[5] = ((c->symbol_rate / 1000) >> 8) & 0xff;
ret = si2168_cmd_execute(client, &cmd);
if (ret)
goto err;
}
cmd_init(&cmd, "\x14\x00\x0f\x10\x10\x00", 6, 4);
ret = si2168_cmd_execute(client, &cmd);
if (ret)
goto err;
cmd_init(&cmd, "\x14\x00\x09\x10\xe3\x08", 6, 4);
cmd.args[5] |= dev->ts_clock_inv ? 0x00 : 0x10;
ret = si2168_cmd_execute(client, &cmd);
if (ret)
goto err;
cmd_init(&cmd, "\x14\x00\x08\x10\xd7\x05", 6, 4);
cmd.args[5] |= dev->ts_clock_inv ? 0x00 : 0x10;
ret = si2168_cmd_execute(client, &cmd);
if (ret)
goto err;
cmd_init(&cmd, "\x14\x00\x01\x12\x00\x00", 6, 4);
ret = si2168_cmd_execute(client, &cmd);
if (ret)
goto err;
cmd_init(&cmd, "\x14\x00\x01\x03\x0c\x00", 6, 4);
ret = si2168_cmd_execute(client, &cmd);
if (ret)
goto err;
cmd_init(&cmd, "\x85", 1, 1);
ret = si2168_cmd_execute(client, &cmd);
if (ret)
goto err;
dev->delivery_system = c->delivery_system;
/* enable ts bus */
ret = si2168_ts_bus_ctrl(fe, 1);
if (ret)
goto err;
return 0;
err:
dev_dbg(&client->dev, "failed=%d\n", ret);
return ret;
}
static int si2168_init(struct dvb_frontend *fe)
{
struct i2c_client *client = fe->demodulator_priv;
struct si2168_dev *dev = i2c_get_clientdata(client);
struct dtv_frontend_properties *c = &fe->dtv_property_cache;
int ret, len, remaining;
const struct firmware *fw;
struct si2168_cmd cmd;
dev_dbg(&client->dev, "\n");
/* initialize */
cmd_init(&cmd, "\xc0\x12\x00\x0c\x00\x0d\x16\x00\x00\x00\x00\x00\x00",
13, 0);
ret = si2168_cmd_execute(client, &cmd);
if (ret)
goto err;
if (dev->warm) {
/* resume */
cmd_init(&cmd, "\xc0\x06\x08\x0f\x00\x20\x21\x01", 8, 1);
ret = si2168_cmd_execute(client, &cmd);
if (ret)
goto err;
udelay(100);
cmd_init(&cmd, "\x85", 1, 1);
ret = si2168_cmd_execute(client, &cmd);
if (ret)
goto err;
goto warm;
}
/* power up */
cmd_init(&cmd, "\xc0\x06\x01\x0f\x00\x20\x20\x01", 8, 1);
ret = si2168_cmd_execute(client, &cmd);
if (ret)
goto err;
/* request the firmware, this will block and timeout */
ret = request_firmware(&fw, dev->firmware_name, &client->dev);
if (ret) {
dev_err(&client->dev,
"firmware file '%s' not found\n",
dev->firmware_name);
goto err_release_firmware;
}
dev_info(&client->dev, "downloading firmware from file '%s'\n",
dev->firmware_name);
if ((fw->size % 17 == 0) && (fw->data[0] > 5)) {
/* firmware is in the new format */
for (remaining = fw->size; remaining > 0; remaining -= 17) {
len = fw->data[fw->size - remaining];
if (len > SI2168_ARGLEN) {
ret = -EINVAL;
break;
}
cmd_init(&cmd, &fw->data[(fw->size - remaining) + 1],
len, 1);
ret = si2168_cmd_execute(client, &cmd);
if (ret)
break;
}
} else if (fw->size % 8 == 0) {
/* firmware is in the old format */
for (remaining = fw->size; remaining > 0; remaining -= 8) {
cmd_init(&cmd, &fw->data[fw->size - remaining], 8, 1);
ret = si2168_cmd_execute(client, &cmd);
if (ret)
break;
}
} else {
/* bad or unknown firmware format */
ret = -EINVAL;
}
if (ret) {
dev_err(&client->dev, "firmware download failed %d\n", ret);
goto err_release_firmware;
}
release_firmware(fw);
cmd_init(&cmd, "\x01\x01", 2, 1);
ret = si2168_cmd_execute(client, &cmd);
if (ret)
goto err;
/* query firmware version */
cmd_init(&cmd, "\x11", 1, 10);
ret = si2168_cmd_execute(client, &cmd);
if (ret)
goto err;
dev->version = (cmd.args[9] + '@') << 24 | (cmd.args[6] - '0') << 16 |
(cmd.args[7] - '0') << 8 | (cmd.args[8]) << 0;
dev_info(&client->dev, "firmware version: %c %d.%d.%d\n",
dev->version >> 24 & 0xff, dev->version >> 16 & 0xff,
dev->version >> 8 & 0xff, dev->version >> 0 & 0xff);
/* set ts mode */
ret = si2168_ts_bus_ctrl(fe, 1);
if (ret)
goto err;
dev->warm = true;
dev->initialized = true;
warm:
/* Init stats here to indicate which stats are supported */
c->cnr.len = 1;
c->cnr.stat[0].scale = FE_SCALE_NOT_AVAILABLE;
c->post_bit_error.len = 1;
c->post_bit_error.stat[0].scale = FE_SCALE_NOT_AVAILABLE;
c->post_bit_count.len = 1;
c->post_bit_count.stat[0].scale = FE_SCALE_NOT_AVAILABLE;
c->block_error.len = 1;
c->block_error.stat[0].scale = FE_SCALE_NOT_AVAILABLE;
dev->active = true;
return 0;
err_release_firmware:
release_firmware(fw);
err:
dev_dbg(&client->dev, "failed=%d\n", ret);
return ret;
}
static int si2168_resume(struct dvb_frontend *fe)
{
struct i2c_client *client = fe->demodulator_priv;
struct si2168_dev *dev = i2c_get_clientdata(client);
/*
* check whether si2168_init() has been called successfully
* outside of a resume cycle. Only call it (and load firmware)
* in this case. si2168_init() is only called during resume
* once the device has actually been used. Otherwise, leave the
* device untouched.
*/
if (dev->initialized) {
dev_dbg(&client->dev, "previously initialized, call si2168_init()\n");
return si2168_init(fe);
}
dev_dbg(&client->dev, "not initialized yet, skipping init on resume\n");
return 0;
}
static int si2168_sleep(struct dvb_frontend *fe)
{
struct i2c_client *client = fe->demodulator_priv;
struct si2168_dev *dev = i2c_get_clientdata(client);
int ret;
struct si2168_cmd cmd;
dev_dbg(&client->dev, "\n");
dev->active = false;
/* tri-state data bus */
ret = si2168_ts_bus_ctrl(fe, 0);
if (ret)
goto err;
/* Firmware later than B 4.0-11 loses warm state during sleep */
if (dev->version > ('B' << 24 | 4 << 16 | 0 << 8 | 11 << 0))
dev->warm = false;
cmd_init(&cmd, "\x13", 1, 0);
ret = si2168_cmd_execute(client, &cmd);
if (ret)
goto err;
return 0;
err:
dev_dbg(&client->dev, "failed=%d\n", ret);
return ret;
}
static int si2168_get_tune_settings(struct dvb_frontend *fe,
struct dvb_frontend_tune_settings *s)
{
s->min_delay_ms = 900;
return 0;
}
static int si2168_select(struct i2c_mux_core *muxc, u32 chan)
{
struct i2c_client *client = i2c_mux_priv(muxc);
int ret;
struct si2168_cmd cmd;
/* open I2C gate */
cmd_init(&cmd, "\xc0\x0d\x01", 3, 0);
ret = si2168_cmd_execute(client, &cmd);
if (ret)
goto err;
return 0;
err:
dev_dbg(&client->dev, "failed=%d\n", ret);
return ret;
}
static int si2168_deselect(struct i2c_mux_core *muxc, u32 chan)
{
struct i2c_client *client = i2c_mux_priv(muxc);
int ret;
struct si2168_cmd cmd;
/* close I2C gate */
cmd_init(&cmd, "\xc0\x0d\x00", 3, 0);
ret = si2168_cmd_execute(client, &cmd);
if (ret)
goto err;
return 0;
err:
dev_dbg(&client->dev, "failed=%d\n", ret);
return ret;
}
static const struct dvb_frontend_ops si2168_ops = {
.delsys = {SYS_DVBT, SYS_DVBT2, SYS_DVBC_ANNEX_A},
.info = {
.name = "Silicon Labs Si2168",
.frequency_min_hz = 48 * MHz,
.frequency_max_hz = 870 * MHz,
.frequency_stepsize_hz = 62500,
.symbol_rate_min = 1000000,
.symbol_rate_max = 7200000,
.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 = si2168_get_tune_settings,
.init = si2168_init,
.sleep = si2168_sleep,
.resume = si2168_resume,
.set_frontend = si2168_set_frontend,
.read_status = si2168_read_status,
};
static int si2168_probe(struct i2c_client *client)
{
struct si2168_config *config = client->dev.platform_data;
struct si2168_dev *dev;
int ret;
struct si2168_cmd cmd;
dev_dbg(&client->dev, "\n");
dev = kzalloc(sizeof(*dev), GFP_KERNEL);
if (!dev) {
ret = -ENOMEM;
goto err;
}
i2c_set_clientdata(client, dev);
mutex_init(&dev->i2c_mutex);
/* Initialize */
cmd_init(&cmd, "\xc0\x12\x00\x0c\x00\x0d\x16\x00\x00\x00\x00\x00\x00",
13, 0);
ret = si2168_cmd_execute(client, &cmd);
if (ret)
goto err_kfree;
/* Power up */
cmd_init(&cmd, "\xc0\x06\x01\x0f\x00\x20\x20\x01", 8, 1);
ret = si2168_cmd_execute(client, &cmd);
if (ret)
goto err_kfree;
/* Query chip revision */
cmd_init(&cmd, "\x02", 1, 13);
ret = si2168_cmd_execute(client, &cmd);
if (ret)
goto err_kfree;
dev->chip_id = cmd.args[1] << 24 | cmd.args[2] << 16 |
cmd.args[3] << 8 | cmd.args[4] << 0;
switch (dev->chip_id) {
case SI2168_CHIP_ID_A20:
dev->firmware_name = SI2168_A20_FIRMWARE;
break;
case SI2168_CHIP_ID_A30:
dev->firmware_name = SI2168_A30_FIRMWARE;
break;
case SI2168_CHIP_ID_B40:
dev->firmware_name = SI2168_B40_FIRMWARE;
break;
case SI2168_CHIP_ID_D60:
dev->firmware_name = SI2168_D60_FIRMWARE;
break;
default:
dev_dbg(&client->dev, "unknown chip version Si21%d-%c%c%c\n",
cmd.args[2], cmd.args[1], cmd.args[3], cmd.args[4]);
ret = -ENODEV;
goto err_kfree;
}
dev->version = (cmd.args[1]) << 24 | (cmd.args[3] - '0') << 16 |
(cmd.args[4] - '0') << 8 | (cmd.args[5]) << 0;
/* create mux i2c adapter for tuner */
dev->muxc = i2c_mux_alloc(client->adapter, &client->dev,
1, 0, I2C_MUX_LOCKED,
si2168_select, si2168_deselect);
if (!dev->muxc) {
ret = -ENOMEM;
goto err_kfree;
}
dev->muxc->priv = client;
ret = i2c_mux_add_adapter(dev->muxc, 0, 0);
if (ret)
goto err_kfree;
/* create dvb_frontend */
memcpy(&dev->fe.ops, &si2168_ops, sizeof(struct dvb_frontend_ops));
dev->fe.demodulator_priv = client;
*config->i2c_adapter = dev->muxc->adapter[0];
*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->spectral_inversion = config->spectral_inversion;
dev_info(&client->dev, "Silicon Labs Si2168-%c%d%d successfully identified\n",
dev->version >> 24 & 0xff, dev->version >> 16 & 0xff,
dev->version >> 8 & 0xff);
dev_info(&client->dev, "firmware version: %c %d.%d.%d\n",
dev->version >> 24 & 0xff, dev->version >> 16 & 0xff,
dev->version >> 8 & 0xff, dev->version >> 0 & 0xff);
return 0;
err_kfree:
kfree(dev);
err:
dev_warn(&client->dev, "probe failed = %d\n", ret);
return ret;
}
static void si2168_remove(struct i2c_client *client)
{
struct si2168_dev *dev = i2c_get_clientdata(client);
dev_dbg(&client->dev, "\n");
i2c_mux_del_adapters(dev->muxc);
dev->fe.ops.release = NULL;
dev->fe.demodulator_priv = NULL;
kfree(dev);
}
static const struct i2c_device_id si2168_id_table[] = {
{ "si2168" },
{}
};
MODULE_DEVICE_TABLE(i2c, si2168_id_table);
static struct i2c_driver si2168_driver = {
.driver = {
.name = "si2168",
.suppress_bind_attrs = true,
},
.probe = si2168_probe,
.remove = si2168_remove,
.id_table = si2168_id_table,
};
module_i2c_driver(si2168_driver);
MODULE_AUTHOR("Antti Palosaari <[email protected]>");
MODULE_DESCRIPTION("Silicon Labs Si2168 DVB-T/T2/C demodulator driver");
MODULE_LICENSE("GPL");
MODULE_FIRMWARE(SI2168_A20_FIRMWARE);
MODULE_FIRMWARE(SI2168_A30_FIRMWARE);
MODULE_FIRMWARE(SI2168_B40_FIRMWARE);
MODULE_FIRMWARE(SI2168_D60_FIRMWARE);
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