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Commit bd01c766 authored by Antti Palosaari's avatar Antti Palosaari Committed by Mauro Carvalho Chehab
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[media] si2168: rename device state variable from 's' to 'dev' 



'dev' is most common name in kernel for structure containing device
state instance, so rename it.

Signed-off-by: default avatarAntti Palosaari <crope@iki.fi>
Signed-off-by: default avatarMauro Carvalho Chehab <mchehab@osg.samsung.com>
parent f1ecc5d1

drivers/media/dvb-frontends/si2168.c

+101 −101
Original line number Diff line number Diff line
@@ -19,16 +19,16 @@ 
static const struct dvb_frontend_ops si2168_ops;



/* execute firmware command */

static int si2168_cmd_execute(struct si2168 *s, struct si2168_cmd *cmd)

static int si2168_cmd_execute(struct si2168_dev *dev, struct si2168_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 si2168_cmd_execute(struct si2168 *s, struct si2168_cmd *cmd) 
		#define TIMEOUT 70

		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 si2168_cmd_execute(struct si2168 *s, struct si2168_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));
@@ -68,26 +68,26 @@ static int si2168_cmd_execute(struct si2168 *s, struct si2168_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 si2168_read_status(struct dvb_frontend *fe, fe_status_t *status)

{

	struct si2168 *s = fe->demodulator_priv;

	struct si2168_dev *dev = fe->demodulator_priv;

	struct dtv_frontend_properties *c = &fe->dtv_property_cache;

	int ret;

	struct si2168_cmd cmd;



	*status = 0;



	if (!s->active) {

	if (!dev->active) {

		ret = -EAGAIN;

		goto err;

	}
@@ -113,7 +113,7 @@ static int si2168_read_status(struct dvb_frontend *fe, fe_status_t *status) 
		goto err;

	}



	ret = si2168_cmd_execute(s, &cmd);

	ret = si2168_cmd_execute(dev, &cmd);

	if (ret)

		goto err;
@@ -138,7 +138,7 @@ static int si2168_read_status(struct dvb_frontend *fe, fe_status_t *status) 
		break;

	}



	s->fe_status = *status;

	dev->fe_status = *status;



	if (*status & FE_HAS_LOCK) {

		c->cnr.len = 1;
@@ -149,30 +149,30 @@ static int si2168_read_status(struct dvb_frontend *fe, fe_status_t *status) 
		c->cnr.stat[0].scale = FE_SCALE_NOT_AVAILABLE;

	}



	dev_dbg(&s->client->dev, "status=%02x args=%*ph\n",

	dev_dbg(&dev->client->dev, "status=%02x args=%*ph\n",

			*status, cmd.rlen, cmd.args);



	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 si2168_set_frontend(struct dvb_frontend *fe)

{

	struct si2168 *s = fe->demodulator_priv;

	struct si2168_dev *dev = fe->demodulator_priv;

	struct dtv_frontend_properties *c = &fe->dtv_property_cache;

	int ret;

	struct si2168_cmd cmd;

	u8 bandwidth, delivery_system;



	dev_dbg(&s->client->dev,

	dev_dbg(&dev->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 (!s->active) {

	if (!dev->active) {

		ret = -EAGAIN;

		goto err;

	}
@@ -217,7 +217,7 @@ static int si2168_set_frontend(struct dvb_frontend *fe) 
	memcpy(cmd.args, "\x88\x02\x02\x02\x02", 5);

	cmd.wlen = 5;

	cmd.rlen = 5;

	ret = si2168_cmd_execute(s, &cmd);

	ret = si2168_cmd_execute(dev, &cmd);

	if (ret)

		goto err;
@@ -230,7 +230,7 @@ static int si2168_set_frontend(struct dvb_frontend *fe) 
		memcpy(cmd.args, "\x89\x21\x06\x11\x89\x20", 6);

	cmd.wlen = 6;

	cmd.rlen = 3;

	ret = si2168_cmd_execute(s, &cmd);

	ret = si2168_cmd_execute(dev, &cmd);

	if (ret)

		goto err;
@@ -241,7 +241,7 @@ static int si2168_set_frontend(struct dvb_frontend *fe) 
		cmd.args[2] = c->stream_id == NO_STREAM_ID_FILTER ? 0 : 1;

		cmd.wlen = 3;

		cmd.rlen = 1;

		ret = si2168_cmd_execute(s, &cmd);

		ret = si2168_cmd_execute(dev, &cmd);

		if (ret)

			goto err;

	}
@@ -249,35 +249,35 @@ static int si2168_set_frontend(struct dvb_frontend *fe) 
	memcpy(cmd.args, "\x51\x03", 2);

	cmd.wlen = 2;

	cmd.rlen = 12;

	ret = si2168_cmd_execute(s, &cmd);

	ret = si2168_cmd_execute(dev, &cmd);

	if (ret)

		goto err;



	memcpy(cmd.args, "\x12\x08\x04", 3);

	cmd.wlen = 3;

	cmd.rlen = 3;

	ret = si2168_cmd_execute(s, &cmd);

	ret = si2168_cmd_execute(dev, &cmd);

	if (ret)

		goto err;



	memcpy(cmd.args, "\x14\x00\x0c\x10\x12\x00", 6);

	cmd.wlen = 6;

	cmd.rlen = 4;

	ret = si2168_cmd_execute(s, &cmd);

	ret = si2168_cmd_execute(dev, &cmd);

	if (ret)

		goto err;



	memcpy(cmd.args, "\x14\x00\x06\x10\x24\x00", 6);

	cmd.wlen = 6;

	cmd.rlen = 4;

	ret = si2168_cmd_execute(s, &cmd);

	ret = si2168_cmd_execute(dev, &cmd);

	if (ret)

		goto err;



	memcpy(cmd.args, "\x14\x00\x07\x10\x00\x24", 6);

	cmd.wlen = 6;

	cmd.rlen = 4;

	ret = si2168_cmd_execute(s, &cmd);

	ret = si2168_cmd_execute(dev, &cmd);

	if (ret)

		goto err;
@@ -285,7 +285,7 @@ static int si2168_set_frontend(struct dvb_frontend *fe) 
	cmd.args[4] = delivery_system | bandwidth;

	cmd.wlen = 6;

	cmd.rlen = 4;

	ret = si2168_cmd_execute(s, &cmd);

	ret = si2168_cmd_execute(dev, &cmd);

	if (ret)

		goto err;
@@ -296,7 +296,7 @@ static int si2168_set_frontend(struct dvb_frontend *fe) 
		cmd.args[5] = ((c->symbol_rate / 1000) >> 8) & 0xff;

		cmd.wlen = 6;

		cmd.rlen = 4;

		ret = si2168_cmd_execute(s, &cmd);

		ret = si2168_cmd_execute(dev, &cmd);

		if (ret)

			goto err;

	}
@@ -304,58 +304,58 @@ static int si2168_set_frontend(struct dvb_frontend *fe) 
	memcpy(cmd.args, "\x14\x00\x0f\x10\x10\x00", 6);

	cmd.wlen = 6;

	cmd.rlen = 4;

	ret = si2168_cmd_execute(s, &cmd);

	ret = si2168_cmd_execute(dev, &cmd);

	if (ret)

		goto err;



	memcpy(cmd.args, "\x14\x00\x09\x10\xe3\x08", 6);

	cmd.args[5] |= s->ts_clock_inv ? 0x00 : 0x10;

	cmd.args[5] |= dev->ts_clock_inv ? 0x00 : 0x10;

	cmd.wlen = 6;

	cmd.rlen = 4;

	ret = si2168_cmd_execute(s, &cmd);

	ret = si2168_cmd_execute(dev, &cmd);

	if (ret)

		goto err;



	memcpy(cmd.args, "\x14\x00\x08\x10\xd7\x05", 6);

	cmd.args[5] |= s->ts_clock_inv ? 0x00 : 0x10;

	cmd.args[5] |= dev->ts_clock_inv ? 0x00 : 0x10;

	cmd.wlen = 6;

	cmd.rlen = 4;

	ret = si2168_cmd_execute(s, &cmd);

	ret = si2168_cmd_execute(dev, &cmd);

	if (ret)

		goto err;



	memcpy(cmd.args, "\x14\x00\x01\x12\x00\x00", 6);

	cmd.wlen = 6;

	cmd.rlen = 4;

	ret = si2168_cmd_execute(s, &cmd);

	ret = si2168_cmd_execute(dev, &cmd);

	if (ret)

		goto err;



	memcpy(cmd.args, "\x14\x00\x01\x03\x0c\x00", 6);

	cmd.wlen = 6;

	cmd.rlen = 4;

	ret = si2168_cmd_execute(s, &cmd);

	ret = si2168_cmd_execute(dev, &cmd);

	if (ret)

		goto err;



	memcpy(cmd.args, "\x85", 1);

	cmd.wlen = 1;

	cmd.rlen = 1;

	ret = si2168_cmd_execute(s, &cmd);

	ret = si2168_cmd_execute(dev, &cmd);

	if (ret)

		goto err;



	s->delivery_system = c->delivery_system;

	dev->delivery_system = c->delivery_system;



	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 si2168_init(struct dvb_frontend *fe)

{

	struct si2168 *s = fe->demodulator_priv;

	struct si2168_dev *dev = fe->demodulator_priv;

	int ret, len, remaining;

	const struct firmware *fw = NULL;

	u8 *fw_file;
@@ -363,29 +363,29 @@ static int si2168_init(struct dvb_frontend *fe) 
	struct si2168_cmd cmd;

	unsigned int chip_id;



	dev_dbg(&s->client->dev, "\n");

	dev_dbg(&dev->client->dev, "\n");



	/* initialize */

	memcpy(cmd.args, "\xc0\x12\x00\x0c\x00\x0d\x16\x00\x00\x00\x00\x00\x00", 13);

	cmd.wlen = 13;

	cmd.rlen = 0;

	ret = si2168_cmd_execute(s, &cmd);

	ret = si2168_cmd_execute(dev, &cmd);

	if (ret)

		goto err;



	if (s->fw_loaded) {

	if (dev->fw_loaded) {

		/* resume */

		memcpy(cmd.args, "\xc0\x06\x08\x0f\x00\x20\x21\x01", 8);

		cmd.wlen = 8;

		cmd.rlen = 1;

		ret = si2168_cmd_execute(s, &cmd);

		ret = si2168_cmd_execute(dev, &cmd);

		if (ret)

			goto err;



		memcpy(cmd.args, "\x85", 1);

		cmd.wlen = 1;

		cmd.rlen = 1;

		ret = si2168_cmd_execute(s, &cmd);

		ret = si2168_cmd_execute(dev, &cmd);

		if (ret)

			goto err;
@@ -396,7 +396,7 @@ static int si2168_init(struct dvb_frontend *fe) 
	memcpy(cmd.args, "\xc0\x06\x01\x0f\x00\x20\x20\x01", 8);

	cmd.wlen = 8;

	cmd.rlen = 1;

	ret = si2168_cmd_execute(s, &cmd);

	ret = si2168_cmd_execute(dev, &cmd);

	if (ret)

		goto err;
@@ -404,7 +404,7 @@ static int si2168_init(struct dvb_frontend *fe) 
	memcpy(cmd.args, "\x02", 1);

	cmd.wlen = 1;

	cmd.rlen = 13;

	ret = si2168_cmd_execute(s, &cmd);

	ret = si2168_cmd_execute(dev, &cmd);

	if (ret)

		goto err;
@@ -426,7 +426,7 @@ static int si2168_init(struct dvb_frontend *fe) 
		fw_file = SI2168_B40_FIRMWARE;

		break;

	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]);
@@ -435,31 +435,31 @@ static int si2168_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",

			si2168_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) {

		/* fallback mechanism to handle old name for Si2168 B40 fw */

		if (chip_id == SI2168_B40) {

			fw_file = SI2168_B40_FIRMWARE_FALLBACK;

			ret = request_firmware(&fw, fw_file, &s->client->dev);

			ret = request_firmware(&fw, fw_file, &dev->client->dev);

		}



		if (ret == 0) {

			dev_notice(&s->client->dev,

			dev_notice(&dev->client->dev,

					"please install firmware file '%s'\n",

					SI2168_B40_FIRMWARE);

		} else {

			dev_err(&s->client->dev,

			dev_err(&dev->client->dev,

					"firmware file '%s' not found\n",

					fw_file);

			goto error_fw_release;

		}

	}



	dev_info(&s->client->dev, "downloading firmware from file '%s'\n",

	dev_info(&dev->client->dev, "downloading firmware from file '%s'\n",

			fw_file);



	if ((fw->size % 17 == 0) && (fw->data[0] > 5)) {
@@ -469,9 +469,9 @@ static int si2168_init(struct dvb_frontend *fe) 
			memcpy(cmd.args, &fw->data[(fw->size - remaining) + 1], len);

			cmd.wlen = len;

			cmd.rlen = 1;

			ret = si2168_cmd_execute(s, &cmd);

			ret = si2168_cmd_execute(dev, &cmd);

			if (ret) {

				dev_err(&s->client->dev,

				dev_err(&dev->client->dev,

						"firmware download failed=%d\n",

						ret);

				goto error_fw_release;
@@ -487,9 +487,9 @@ static int si2168_init(struct dvb_frontend *fe) 
			memcpy(cmd.args, &fw->data[fw->size - remaining], len);

			cmd.wlen = len;

			cmd.rlen = 1;

			ret = si2168_cmd_execute(s, &cmd);

			ret = si2168_cmd_execute(dev, &cmd);

			if (ret) {

				dev_err(&s->client->dev,

				dev_err(&dev->client->dev,

						"firmware download failed=%d\n",

						ret);

				goto error_fw_release;
@@ -503,7 +503,7 @@ static int si2168_init(struct dvb_frontend *fe) 
	memcpy(cmd.args, "\x01\x01", 2);

	cmd.wlen = 2;

	cmd.rlen = 1;

	ret = si2168_cmd_execute(s, &cmd);

	ret = si2168_cmd_execute(dev, &cmd);

	if (ret)

		goto err;
@@ -511,58 +511,58 @@ static int si2168_init(struct dvb_frontend *fe) 
	memcpy(cmd.args, "\x11", 1);

	cmd.wlen = 1;

	cmd.rlen = 10;

	ret = si2168_cmd_execute(s, &cmd);

	ret = si2168_cmd_execute(dev, &cmd);

	if (ret)

		goto err;



	dev_dbg(&s->client->dev, "firmware version: %c.%c.%d\n",

	dev_dbg(&dev->client->dev, "firmware version: %c.%c.%d\n",

			cmd.args[6], cmd.args[7], cmd.args[8]);



	/* set ts mode */

	memcpy(cmd.args, "\x14\x00\x01\x10\x10\x00", 6);

	cmd.args[4] |= s->ts_mode;

	cmd.args[4] |= dev->ts_mode;

	cmd.wlen = 6;

	cmd.rlen = 4;

	ret = si2168_cmd_execute(s, &cmd);

	ret = si2168_cmd_execute(dev, &cmd);

	if (ret)

		goto err;



	s->fw_loaded = true;

	dev->fw_loaded = true;



	dev_info(&s->client->dev, "found a '%s' in warm state\n",

	dev_info(&dev->client->dev, "found a '%s' in warm state\n",

			si2168_ops.info.name);

warm:

	s->active = true;

	dev->active = true;



	return 0;



error_fw_release:

	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 si2168_sleep(struct dvb_frontend *fe)

{

	struct si2168 *s = fe->demodulator_priv;

	struct si2168_dev *dev = fe->demodulator_priv;

	int ret;

	struct si2168_cmd cmd;



	dev_dbg(&s->client->dev, "\n");

	dev_dbg(&dev->client->dev, "\n");



	s->active = false;

	dev->active = false;



	memcpy(cmd.args, "\x13", 1);

	cmd.wlen = 1;

	cmd.rlen = 0;

	ret = si2168_cmd_execute(s, &cmd);

	ret = si2168_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;

}
@@ -581,21 +581,21 @@ static int si2168_get_tune_settings(struct dvb_frontend *fe, 
 */

static int si2168_select(struct i2c_adapter *adap, void *mux_priv, u32 chan)

{

	struct si2168 *s = mux_priv;

	struct si2168_dev *dev = mux_priv;

	int ret;

	struct i2c_msg gate_open_msg = {

		.addr = s->client->addr,

		.addr = dev->client->addr,

		.flags = 0,

		.len = 3,

		.buf = "\xc0\x0d\x01",

	};



	mutex_lock(&s->i2c_mutex);

	mutex_lock(&dev->i2c_mutex);



	/* open tuner I2C gate */

	ret = __i2c_transfer(s->client->adapter, &gate_open_msg, 1);

	ret = __i2c_transfer(dev->client->adapter, &gate_open_msg, 1);

	if (ret != 1) {

		dev_warn(&s->client->dev, "i2c write failed=%d\n", ret);

		dev_warn(&dev->client->dev, "i2c write failed=%d\n", ret);

		if (ret >= 0)

			ret = -EREMOTEIO;

	} else {
@@ -607,26 +607,26 @@ static int si2168_select(struct i2c_adapter *adap, void *mux_priv, u32 chan) 


static int si2168_deselect(struct i2c_adapter *adap, void *mux_priv, u32 chan)

{

	struct si2168 *s = mux_priv;

	struct si2168_dev *dev = mux_priv;

	int ret;

	struct i2c_msg gate_close_msg = {

		.addr = s->client->addr,

		.addr = dev->client->addr,

		.flags = 0,

		.len = 3,

		.buf = "\xc0\x0d\x00",

	};



	/* close tuner I2C gate */

	ret = __i2c_transfer(s->client->adapter, &gate_close_msg, 1);

	ret = __i2c_transfer(dev->client->adapter, &gate_close_msg, 1);

	if (ret != 1) {

		dev_warn(&s->client->dev, "i2c write failed=%d\n", ret);

		dev_warn(&dev->client->dev, "i2c write failed=%d\n", ret);

		if (ret >= 0)

			ret = -EREMOTEIO;

	} else {

		ret = 0;

	}



	mutex_unlock(&s->i2c_mutex);

	mutex_unlock(&dev->i2c_mutex);



	return ret;

}
@@ -672,62 +672,62 @@ static int si2168_probe(struct i2c_client *client, 
		const struct i2c_device_id *id)

{

	struct si2168_config *config = client->dev.platform_data;

	struct si2168 *s;

	struct si2168_dev *dev;

	int ret;



	dev_dbg(&client->dev, "\n");



	s = kzalloc(sizeof(struct si2168), 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;

	mutex_init(&s->i2c_mutex);

	dev->client = client;

	mutex_init(&dev->i2c_mutex);



	/* create mux i2c adapter for tuner */

	s->adapter = i2c_add_mux_adapter(client->adapter, &client->dev, s,

	dev->adapter = i2c_add_mux_adapter(client->adapter, &client->dev, dev,

			0, 0, 0, si2168_select, si2168_deselect);

	if (s->adapter == NULL) {

	if (dev->adapter == NULL) {

		ret = -ENODEV;

		goto err;

	}



	/* create dvb_frontend */

	memcpy(&s->fe.ops, &si2168_ops, sizeof(struct dvb_frontend_ops));

	s->fe.demodulator_priv = s;

	memcpy(&dev->fe.ops, &si2168_ops, sizeof(struct dvb_frontend_ops));

	dev->fe.demodulator_priv = dev;



	*config->i2c_adapter = s->adapter;

	*config->fe = &s->fe;

	s->ts_mode = config->ts_mode;

	s->ts_clock_inv = config->ts_clock_inv;

	s->fw_loaded = false;

	*config->i2c_adapter = dev->adapter;

	*config->fe = &dev->fe;

	dev->ts_mode = config->ts_mode;

	dev->ts_clock_inv = config->ts_clock_inv;

	dev->fw_loaded = false;



	i2c_set_clientdata(client, s);

	i2c_set_clientdata(client, dev);



	dev_info(&s->client->dev,

	dev_info(&dev->client->dev,

			"Silicon Labs Si2168 successfully attached\n");

	return 0;

err:

	kfree(s);

	kfree(dev);

	dev_dbg(&client->dev, "failed=%d\n", ret);

	return ret;

}



static int si2168_remove(struct i2c_client *client)

{

	struct si2168 *s = i2c_get_clientdata(client);

	struct si2168_dev *dev = i2c_get_clientdata(client);



	dev_dbg(&client->dev, "\n");



	i2c_del_mux_adapter(s->adapter);

	i2c_del_mux_adapter(dev->adapter);



	s->fe.ops.release = NULL;

	s->fe.demodulator_priv = NULL;

	dev->fe.ops.release = NULL;

	dev->fe.demodulator_priv = NULL;



	kfree(s);

	kfree(dev);



	return 0;

}

drivers/media/dvb-frontends/si2168_priv.h

+1 −1
Original line number Diff line number Diff line
@@ -28,7 +28,7 @@ 
#define SI2168_B40_FIRMWARE_FALLBACK "dvb-demod-si2168-02.fw"



/* state struct */

struct si2168 {

struct si2168_dev {

	struct i2c_client *client;

	struct i2c_adapter *adapter;

	struct mutex i2c_mutex;