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path: root/drivers/media/tuners/si2157.c
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Diffstat (limited to 'drivers/media/tuners/si2157.c')
-rw-r--r--drivers/media/tuners/si2157.c118
1 files changed, 58 insertions, 60 deletions
diff --git a/drivers/media/tuners/si2157.c b/drivers/media/tuners/si2157.c
index 2180de9d654a..14d2f7363149 100644
--- a/drivers/media/tuners/si2157.c
+++ b/drivers/media/tuners/si2157.c
@@ -19,16 +19,16 @@
static const struct dvb_tuner_ops si2157_ops;
/* execute firmware command */
-static int si2157_cmd_execute(struct si2157 *s, struct si2157_cmd *cmd)
+static int si2157_cmd_execute(struct si2157_dev *dev, struct si2157_cmd *cmd)
{
int ret;
unsigned long timeout;
- mutex_lock(&s->i2c_mutex);
+ mutex_lock(&dev->i2c_mutex);
if (cmd->wlen) {
/* write cmd and args for firmware */
- ret = i2c_master_send(s->client, cmd->args, cmd->wlen);
+ ret = i2c_master_send(dev->client, cmd->args, cmd->wlen);
if (ret < 0) {
goto err_mutex_unlock;
} else if (ret != cmd->wlen) {
@@ -42,7 +42,7 @@ static int si2157_cmd_execute(struct si2157 *s, struct si2157_cmd *cmd)
#define TIMEOUT 80
timeout = jiffies + msecs_to_jiffies(TIMEOUT);
while (!time_after(jiffies, timeout)) {
- ret = i2c_master_recv(s->client, cmd->args, cmd->rlen);
+ ret = i2c_master_recv(dev->client, cmd->args, cmd->rlen);
if (ret < 0) {
goto err_mutex_unlock;
} else if (ret != cmd->rlen) {
@@ -55,7 +55,7 @@ static int si2157_cmd_execute(struct si2157 *s, struct si2157_cmd *cmd)
break;
}
- dev_dbg(&s->client->dev, "cmd execution took %d ms\n",
+ dev_dbg(&dev->client->dev, "cmd execution took %d ms\n",
jiffies_to_msecs(jiffies) -
(jiffies_to_msecs(timeout) - TIMEOUT));
@@ -68,32 +68,32 @@ static int si2157_cmd_execute(struct si2157 *s, struct si2157_cmd *cmd)
ret = 0;
err_mutex_unlock:
- mutex_unlock(&s->i2c_mutex);
+ mutex_unlock(&dev->i2c_mutex);
if (ret)
goto err;
return 0;
err:
- dev_dbg(&s->client->dev, "failed=%d\n", ret);
+ dev_dbg(&dev->client->dev, "failed=%d\n", ret);
return ret;
}
static int si2157_init(struct dvb_frontend *fe)
{
- struct si2157 *s = fe->tuner_priv;
+ struct si2157_dev *dev = fe->tuner_priv;
int ret, len, remaining;
struct si2157_cmd cmd;
const struct firmware *fw = NULL;
u8 *fw_file;
unsigned int chip_id;
- dev_dbg(&s->client->dev, "\n");
+ dev_dbg(&dev->client->dev, "\n");
- if (s->fw_loaded)
+ if (dev->fw_loaded)
goto warm;
/* power up */
- if (s->chiptype == SI2157_CHIPTYPE_SI2146) {
+ if (dev->chiptype == SI2157_CHIPTYPE_SI2146) {
memcpy(cmd.args, "\xc0\x05\x01\x00\x00\x0b\x00\x00\x01", 9);
cmd.wlen = 9;
} else {
@@ -101,7 +101,7 @@ static int si2157_init(struct dvb_frontend *fe)
cmd.wlen = 15;
}
cmd.rlen = 1;
- ret = si2157_cmd_execute(s, &cmd);
+ ret = si2157_cmd_execute(dev, &cmd);
if (ret)
goto err;
@@ -109,7 +109,7 @@ static int si2157_init(struct dvb_frontend *fe)
memcpy(cmd.args, "\x02", 1);
cmd.wlen = 1;
cmd.rlen = 13;
- ret = si2157_cmd_execute(s, &cmd);
+ ret = si2157_cmd_execute(dev, &cmd);
if (ret)
goto err;
@@ -132,7 +132,7 @@ static int si2157_init(struct dvb_frontend *fe)
case SI2146_A10:
goto skip_fw_download;
default:
- dev_err(&s->client->dev,
+ dev_err(&dev->client->dev,
"unknown chip version Si21%d-%c%c%c\n",
cmd.args[2], cmd.args[1],
cmd.args[3], cmd.args[4]);
@@ -141,26 +141,26 @@ static int si2157_init(struct dvb_frontend *fe)
}
/* cold state - try to download firmware */
- dev_info(&s->client->dev, "found a '%s' in cold state\n",
+ dev_info(&dev->client->dev, "found a '%s' in cold state\n",
si2157_ops.info.name);
/* request the firmware, this will block and timeout */
- ret = request_firmware(&fw, fw_file, &s->client->dev);
+ ret = request_firmware(&fw, fw_file, &dev->client->dev);
if (ret) {
- dev_err(&s->client->dev, "firmware file '%s' not found\n",
+ dev_err(&dev->client->dev, "firmware file '%s' not found\n",
fw_file);
goto err;
}
/* firmware should be n chunks of 17 bytes */
if (fw->size % 17 != 0) {
- dev_err(&s->client->dev, "firmware file '%s' is invalid\n",
+ dev_err(&dev->client->dev, "firmware file '%s' is invalid\n",
fw_file);
ret = -EINVAL;
goto fw_release_exit;
}
- dev_info(&s->client->dev, "downloading firmware from file '%s'\n",
+ dev_info(&dev->client->dev, "downloading firmware from file '%s'\n",
fw_file);
for (remaining = fw->size; remaining > 0; remaining -= 17) {
@@ -168,9 +168,9 @@ static int si2157_init(struct dvb_frontend *fe)
memcpy(cmd.args, &fw->data[(fw->size - remaining) + 1], len);
cmd.wlen = len;
cmd.rlen = 1;
- ret = si2157_cmd_execute(s, &cmd);
+ ret = si2157_cmd_execute(dev, &cmd);
if (ret) {
- dev_err(&s->client->dev,
+ dev_err(&dev->client->dev,
"firmware download failed=%d\n",
ret);
goto fw_release_exit;
@@ -185,61 +185,61 @@ skip_fw_download:
memcpy(cmd.args, "\x01\x01", 2);
cmd.wlen = 2;
cmd.rlen = 1;
- ret = si2157_cmd_execute(s, &cmd);
+ ret = si2157_cmd_execute(dev, &cmd);
if (ret)
goto err;
- s->fw_loaded = true;
+ dev->fw_loaded = true;
warm:
- s->active = true;
+ dev->active = true;
return 0;
fw_release_exit:
release_firmware(fw);
err:
- dev_dbg(&s->client->dev, "failed=%d\n", ret);
+ dev_dbg(&dev->client->dev, "failed=%d\n", ret);
return ret;
}
static int si2157_sleep(struct dvb_frontend *fe)
{
- struct si2157 *s = fe->tuner_priv;
+ struct si2157_dev *dev = fe->tuner_priv;
int ret;
struct si2157_cmd cmd;
- dev_dbg(&s->client->dev, "\n");
+ dev_dbg(&dev->client->dev, "\n");
- s->active = false;
+ dev->active = false;
/* standby */
memcpy(cmd.args, "\x16\x00", 2);
cmd.wlen = 2;
cmd.rlen = 1;
- ret = si2157_cmd_execute(s, &cmd);
+ ret = si2157_cmd_execute(dev, &cmd);
if (ret)
goto err;
return 0;
err:
- dev_dbg(&s->client->dev, "failed=%d\n", ret);
+ dev_dbg(&dev->client->dev, "failed=%d\n", ret);
return ret;
}
static int si2157_set_params(struct dvb_frontend *fe)
{
- struct si2157 *s = fe->tuner_priv;
+ struct si2157_dev *dev = fe->tuner_priv;
struct dtv_frontend_properties *c = &fe->dtv_property_cache;
int ret;
struct si2157_cmd cmd;
u8 bandwidth, delivery_system;
- dev_dbg(&s->client->dev,
+ dev_dbg(&dev->client->dev,
"delivery_system=%d frequency=%u bandwidth_hz=%u\n",
c->delivery_system, c->frequency,
c->bandwidth_hz);
- if (!s->active) {
+ if (!dev->active) {
ret = -EAGAIN;
goto err;
}
@@ -274,21 +274,21 @@ static int si2157_set_params(struct dvb_frontend *fe)
memcpy(cmd.args, "\x14\x00\x03\x07\x00\x00", 6);
cmd.args[4] = delivery_system | bandwidth;
- if (s->inversion)
+ if (dev->inversion)
cmd.args[5] = 0x01;
cmd.wlen = 6;
cmd.rlen = 4;
- ret = si2157_cmd_execute(s, &cmd);
+ ret = si2157_cmd_execute(dev, &cmd);
if (ret)
goto err;
- if (s->chiptype == SI2157_CHIPTYPE_SI2146)
+ if (dev->chiptype == SI2157_CHIPTYPE_SI2146)
memcpy(cmd.args, "\x14\x00\x02\x07\x00\x01", 6);
else
memcpy(cmd.args, "\x14\x00\x02\x07\x01\x00", 6);
cmd.wlen = 6;
cmd.rlen = 4;
- ret = si2157_cmd_execute(s, &cmd);
+ ret = si2157_cmd_execute(dev, &cmd);
if (ret)
goto err;
@@ -300,13 +300,13 @@ static int si2157_set_params(struct dvb_frontend *fe)
cmd.args[7] = (c->frequency >> 24) & 0xff;
cmd.wlen = 8;
cmd.rlen = 1;
- ret = si2157_cmd_execute(s, &cmd);
+ ret = si2157_cmd_execute(dev, &cmd);
if (ret)
goto err;
return 0;
err:
- dev_dbg(&s->client->dev, "failed=%d\n", ret);
+ dev_dbg(&dev->client->dev, "failed=%d\n", ret);
return ret;
}
@@ -334,60 +334,58 @@ static int si2157_probe(struct i2c_client *client,
{
struct si2157_config *cfg = client->dev.platform_data;
struct dvb_frontend *fe = cfg->fe;
- struct si2157 *s;
+ struct si2157_dev *dev;
struct si2157_cmd cmd;
int ret;
- s = kzalloc(sizeof(struct si2157), GFP_KERNEL);
- if (!s) {
+ dev = kzalloc(sizeof(*dev), GFP_KERNEL);
+ if (!dev) {
ret = -ENOMEM;
dev_err(&client->dev, "kzalloc() failed\n");
goto err;
}
- s->client = client;
- s->fe = cfg->fe;
- s->inversion = cfg->inversion;
- s->fw_loaded = false;
- s->chiptype = (u8)id->driver_data;
- mutex_init(&s->i2c_mutex);
+ dev->client = client;
+ dev->fe = cfg->fe;
+ dev->inversion = cfg->inversion;
+ dev->fw_loaded = false;
+ dev->chiptype = (u8)id->driver_data;
+ mutex_init(&dev->i2c_mutex);
/* check if the tuner is there */
cmd.wlen = 0;
cmd.rlen = 1;
- ret = si2157_cmd_execute(s, &cmd);
+ ret = si2157_cmd_execute(dev, &cmd);
if (ret)
goto err;
- fe->tuner_priv = s;
- memcpy(&fe->ops.tuner_ops, &si2157_ops,
- sizeof(struct dvb_tuner_ops));
+ fe->tuner_priv = dev;
+ memcpy(&fe->ops.tuner_ops, &si2157_ops, sizeof(struct dvb_tuner_ops));
- i2c_set_clientdata(client, s);
+ i2c_set_clientdata(client, dev);
- dev_info(&s->client->dev,
+ dev_info(&dev->client->dev,
"Silicon Labs %s successfully attached\n",
- s->chiptype == SI2157_CHIPTYPE_SI2146 ?
+ dev->chiptype == SI2157_CHIPTYPE_SI2146 ?
"Si2146" : "Si2147/2148/2157/2158");
return 0;
err:
dev_dbg(&client->dev, "failed=%d\n", ret);
- kfree(s);
-
+ kfree(dev);
return ret;
}
static int si2157_remove(struct i2c_client *client)
{
- struct si2157 *s = i2c_get_clientdata(client);
- struct dvb_frontend *fe = s->fe;
+ struct si2157_dev *dev = i2c_get_clientdata(client);
+ struct dvb_frontend *fe = dev->fe;
dev_dbg(&client->dev, "\n");
memset(&fe->ops.tuner_ops, 0, sizeof(struct dvb_tuner_ops));
fe->tuner_priv = NULL;
- kfree(s);
+ kfree(dev);
return 0;
}
generated by cgit (git 2.34.1) at 2024-06-08 08:40:05 +0000