本文整理汇总了C++中si470x_set_register函数的典型用法代码示例。如果您正苦于以下问题：C++ si470x_set_register函数的具体用法？C++ si470x_set_register怎么用？C++ si470x_set_register使用的例子？那么恭喜您, 这里精选的函数代码示例或许可以为您提供帮助。
在下文中一共展示了si470x_set_register函数的15个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1: si470x_set_chan
/*
* si470x_set_chan - set the channel
*/
static int si470x_set_chan(struct si470x_device *radio, unsigned short chan)
{
int retval;
unsigned long timeout;
bool timed_out = 0;
/* start tuning */
radio->registers[CHANNEL] &= ~CHANNEL_CHAN;
radio->registers[CHANNEL] |= CHANNEL_TUNE | chan;
retval = si470x_set_register(radio, CHANNEL);
if (retval < 0)
return retval;
/* wait till seek operation has completed */
timeout = jiffies + msecs_to_jiffies(tune_timeout);
do {
retval = si470x_get_register(radio, STATUSRSSI);
if (retval < 0)
return retval;
timed_out = time_after(jiffies, timeout);
} while (((radio->registers[STATUSRSSI] & STATUSRSSI_STC) == 0) &&
(!timed_out));
if (timed_out)
printk(KERN_WARNING DRIVER_NAME
": seek does not finish after %u ms\n", tune_timeout);
/* stop tuning */
radio->registers[CHANNEL] &= ~CHANNEL_TUNE;
return si470x_set_register(radio, CHANNEL);
}示例2: si470x_set_chan
/*
* si470x_set_chan - set the channel
*/
static int si470x_set_chan(struct si470x_device *radio, unsigned short chan)
{
int retval;
bool timed_out = 0;
/* start tuning */
radio->registers[CHANNEL] &= ~CHANNEL_CHAN;
radio->registers[CHANNEL] |= CHANNEL_TUNE | chan;
retval = si470x_set_register(radio, CHANNEL);
if (retval < 0)
goto done;
/* wait till tune operation has completed */
INIT_COMPLETION(radio->completion);
retval = wait_for_completion_timeout(&radio->completion,
msecs_to_jiffies(tune_timeout));
if (!retval)
timed_out = true;
if ((radio->registers[STATUSRSSI] & STATUSRSSI_STC) == 0)
dev_warn(&radio->videodev.dev, "tune does not complete\n");
if (timed_out)
dev_warn(&radio->videodev.dev,
"tune timed out after %u ms\n", tune_timeout);
/* stop tuning */
radio->registers[CHANNEL] &= ~CHANNEL_TUNE;
retval = si470x_set_register(radio, CHANNEL);
done:
return retval;
}示例3: si470x_stop
/*
* si470x_stop - switch off radio
*/
static int si470x_stop(struct si470x_device *radio)
{
int retval;
/* sysconfig 1 */
radio->registers[SYSCONFIG1] &= ~SYSCONFIG1_RDS;
retval = si470x_set_register(radio, SYSCONFIG1);
if (retval < 0)
return retval;
/* powercfg */
radio->registers[POWERCFG] &= ~POWERCFG_DMUTE;
/* POWERCFG_ENABLE has to automatically go low */
radio->registers[POWERCFG] |= POWERCFG_ENABLE | POWERCFG_DISABLE;
return si470x_set_register(radio, POWERCFG);
}示例4: si470x_fops_open
/*
* si470x_fops_open - file open
*/
int si470x_fops_open(struct file *file)
{
struct si470x_device *radio = video_drvdata(file);
int retval = 0;
mutex_lock(&radio->lock);
radio->users++;
if (radio->users == 1) {
/* start radio */
retval = si470x_start(radio);
if (retval < 0)
goto done;
/* enable RDS / STC interrupt */
radio->registers[SYSCONFIG1] |= SYSCONFIG1_RDSIEN;
radio->registers[SYSCONFIG1] |= SYSCONFIG1_STCIEN;
radio->registers[SYSCONFIG1] &= ~SYSCONFIG1_GPIO2;
radio->registers[SYSCONFIG1] |= 0x1 << 2;
retval = si470x_set_register(radio, SYSCONFIG1);
}
done:
mutex_unlock(&radio->lock);
return retval;
}示例5: si470x_set_band
/*
* si470x_set_band - set the band
*/
static int si470x_set_band(struct si470x_device *radio, int band)
{
if (radio->band == band)
return 0;
radio->band = band;
radio->registers[SYSCONFIG2] &= ~SYSCONFIG2_BAND;
radio->registers[SYSCONFIG2] |= radio->band << 6;
return si470x_set_register(radio, SYSCONFIG2);
}示例6: si470x_i2c_suspend
/*
* si470x_i2c_suspend - suspend the device
*/
static int si470x_i2c_suspend(struct i2c_client *client, pm_message_t mesg)
{
struct si470x_device *radio = i2c_get_clientdata(client);
/* power down */
radio->registers[POWERCFG] |= POWERCFG_DISABLE;
if (si470x_set_register(radio, POWERCFG) < 0)
return -EIO;
return 0;
}示例7: si470x_s_ctrl
static int si470x_s_ctrl(struct v4l2_ctrl *ctrl)
{
struct si470x_device *radio =
container_of(ctrl->handler, struct si470x_device, hdl);
switch (ctrl->id) {
case V4L2_CID_AUDIO_VOLUME:
radio->registers[SYSCONFIG2] &= ~SYSCONFIG2_VOLUME;
radio->registers[SYSCONFIG2] |= ctrl->val;
return si470x_set_register(radio, SYSCONFIG2);
case V4L2_CID_AUDIO_MUTE:
if (ctrl->val)
radio->registers[POWERCFG] &= ~POWERCFG_DMUTE;
else
radio->registers[POWERCFG] |= POWERCFG_DMUTE;
return si470x_set_register(radio, POWERCFG);
default:
return -EINVAL;
}
}示例8: si470x_rds_on
/*
* si470x_rds_on - switch on rds reception
*/
static int si470x_rds_on(struct si470x_device *radio)
{
int retval;
/* sysconfig 1 */
radio->registers[SYSCONFIG1] |= SYSCONFIG1_RDS;
retval = si470x_set_register(radio, SYSCONFIG1);
if (retval < 0)
radio->registers[SYSCONFIG1] &= ~SYSCONFIG1_RDS;
return retval;
}示例9: si470x_i2c_resume
/*
* si470x_i2c_resume - resume the device
*/
static int si470x_i2c_resume(struct i2c_client *client)
{
struct si470x_device *radio = i2c_get_clientdata(client);
/* power up : need 110ms */
radio->registers[POWERCFG] |= POWERCFG_ENABLE;
if (si470x_set_register(radio, POWERCFG) < 0)
return -EIO;
msleep(110);
return 0;
}示例10: si470x_rds_on
/*
* si470x_rds_on - switch on rds reception
*/
int si470x_rds_on(struct si470x_device *radio)
{
int retval;
/* sysconfig 1 */
mutex_lock(&radio->lock);
radio->registers[SYSCONFIG1] |= SYSCONFIG1_RDS;
retval = si470x_set_register(radio, SYSCONFIG1);
if (retval < 0)
radio->registers[SYSCONFIG1] &= ~SYSCONFIG1_RDS;
mutex_unlock(&radio->lock);
return retval;
}示例11: si470x_set_chan
/*
* si470x_set_chan - set the channel
*/
static int si470x_set_chan(struct si470x_device *radio, unsigned short chan)
{
int retval;
unsigned long timeout;
bool timed_out = 0;
/* start tuning */
radio->registers[CHANNEL] &= ~CHANNEL_CHAN;
radio->registers[CHANNEL] |= CHANNEL_TUNE | chan;
retval = si470x_set_register(radio, CHANNEL);
if (retval < 0)
goto done;
/* wait till tune operation has completed */
timeout = jiffies + msecs_to_jiffies(tune_timeout);
do {
retval = si470x_get_register(radio, STATUSRSSI);
if (retval < 0)
goto stop;
timed_out = time_after(jiffies, timeout);
} while (((radio->registers[STATUSRSSI] & STATUSRSSI_STC) == 0) &&
(!timed_out));
if ((radio->registers[STATUSRSSI] & STATUSRSSI_STC) == 0)
dev_warn(&radio->videodev->dev, "tune does not complete\n");
if (timed_out)
dev_warn(&radio->videodev->dev,
"tune timed out after %u ms\n", tune_timeout);
stop:
/* stop tuning */
radio->registers[CHANNEL] &= ~CHANNEL_TUNE;
retval = si470x_set_register(radio, CHANNEL);
done:
return retval;
}示例12: si470x_i2c_suspend
/*
* si470x_i2c_suspend - suspend the device
*/
static int si470x_i2c_suspend(struct device *dev)
{
struct i2c_client *client = to_i2c_client(dev);
struct si470x_device *radio = i2c_get_clientdata(client);
#ifndef CONFIG_VIDEO_V4L2
if (radio->pdata->enabled == false)
return 0;
#endif
/* power down */
radio->registers[POWERCFG] |= POWERCFG_DISABLE;
if (si470x_set_register(radio, POWERCFG) < 0)
return -EIO;
return 0;
}示例13: si470x_i2c_resume
/*
* si470x_i2c_resume - resume the device
*/
static int si470x_i2c_resume(struct device *dev)
{
struct i2c_client *client = to_i2c_client(dev);
struct si470x_device *radio = i2c_get_clientdata(client);
#ifndef CONFIG_VIDEO_V4L2
if (radio->pdata->enabled == false)
return 0;
#endif
/* power up : need 110ms */
radio->registers[POWERCFG] |= POWERCFG_ENABLE;
if (si470x_set_register(radio, POWERCFG) < 0)
return -EIO;
msleep(110);
return 0;
}示例14: si470x_vidioc_s_tuner
/*
* si470x_vidioc_s_tuner - set tuner attributes
*/
static int si470x_vidioc_s_tuner(struct file *file, void *priv,
struct v4l2_tuner *tuner)
{
struct si470x_device *radio = video_get_drvdata(video_devdata(file));
int retval;
if (tuner->index > 0)
return -EINVAL;
if (tuner->audmode == V4L2_TUNER_MODE_MONO)
radio->registers[POWERCFG] |= POWERCFG_MONO; /* force mono */
else
radio->registers[POWERCFG] &= ~POWERCFG_MONO; /* try stereo */
retval = si470x_set_register(radio, POWERCFG);
if (retval < 0)
printk(KERN_WARNING DRIVER_NAME
": set tuner failed with %d\n", retval);
return retval;
}示例15: si470x_vidioc_s_tuner
/*
* si470x_vidioc_s_tuner - set tuner attributes
*/
static int si470x_vidioc_s_tuner(struct file *file, void *priv,
struct v4l2_tuner *tuner)
{
struct si470x_device *radio = video_drvdata(file);
if (tuner->index != 0)
return -EINVAL;
/* mono/stereo selector */
switch (tuner->audmode) {
case V4L2_TUNER_MODE_MONO:
radio->registers[POWERCFG] |= POWERCFG_MONO; /* force mono */
break;
case V4L2_TUNER_MODE_STEREO:
default:
radio->registers[POWERCFG] &= ~POWERCFG_MONO; /* try stereo */
break;
}
return si470x_set_register(radio, POWERCFG);
}