diff options
| author | Joonyoung Shim <jy0922.shim@samsung.com> | 2009-08-09 19:23:02 +0200 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2009-09-12 17:18:42 +0200 |
| commit | 3c7cc8d52c0bd60d214aca22772aa3602a2b3198 (patch) | |
| tree | 7018e376b3446607cc4a3be92e6e8914051aae24 /drivers/media/radio/si470x | |
| parent | V4L/DVB (12414): radio-si470x: change to dev_* macro from printk (diff) | |
| download | linux-3c7cc8d52c0bd60d214aca22772aa3602a2b3198.tar.xz linux-3c7cc8d52c0bd60d214aca22772aa3602a2b3198.zip | |
V4L/DVB (12415): radio-si470x: add disconnect check function
The si470x_disconnect_check is function to check disconnect state of
radio in common file. The function is implemented in each interface
file.
Signed-off-by: Joonyoung Shim <jy0922.shim@samsung.com>
Signed-off-by: Tobias Lorenz <tobias.lorenz@gmx.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers/media/radio/si470x')
| -rw-r--r-- | drivers/media/radio/si470x/radio-si470x-common.c | 40 | ||||
| -rw-r--r-- | drivers/media/radio/si470x/radio-si470x-usb.c | 17 | ||||
| -rw-r--r-- | drivers/media/radio/si470x/radio-si470x.h | 1 |
3 files changed, 37 insertions, 21 deletions
diff --git a/drivers/media/radio/si470x/radio-si470x-common.c b/drivers/media/radio/si470x/radio-si470x-common.c index fd9fc4aa8fb0..9f9a417caf93 100644 --- a/drivers/media/radio/si470x/radio-si470x-common.c +++ b/drivers/media/radio/si470x/radio-si470x-common.c @@ -475,10 +475,9 @@ static int si470x_vidioc_g_ctrl(struct file *file, void *priv, int retval = 0; /* safety checks */ - if (radio->disconnected) { - retval = -EIO; + retval = si470x_disconnect_check(radio); + if (retval) goto done; - } switch (ctrl->id) { case V4L2_CID_AUDIO_VOLUME: @@ -511,10 +510,9 @@ static int si470x_vidioc_s_ctrl(struct file *file, void *priv, int retval = 0; /* safety checks */ - if (radio->disconnected) { - retval = -EIO; + retval = si470x_disconnect_check(radio); + if (retval) goto done; - } switch (ctrl->id) { case V4L2_CID_AUDIO_VOLUME: @@ -567,10 +565,10 @@ static int si470x_vidioc_g_tuner(struct file *file, void *priv, int retval = 0; /* safety checks */ - if (radio->disconnected) { - retval = -EIO; + retval = si470x_disconnect_check(radio); + if (retval) goto done; - } + if (tuner->index != 0) { retval = -EINVAL; goto done; @@ -649,10 +647,10 @@ static int si470x_vidioc_s_tuner(struct file *file, void *priv, int retval = -EINVAL; /* safety checks */ - if (radio->disconnected) { - retval = -EIO; + retval = si470x_disconnect_check(radio); + if (retval) goto done; - } + if (tuner->index != 0) goto done; @@ -688,10 +686,10 @@ static int si470x_vidioc_g_frequency(struct file *file, void *priv, int retval = 0; /* safety checks */ - if (radio->disconnected) { - retval = -EIO; + retval = si470x_disconnect_check(radio); + if (retval) goto done; - } + if (freq->tuner != 0) { retval = -EINVAL; goto done; @@ -718,10 +716,10 @@ static int si470x_vidioc_s_frequency(struct file *file, void *priv, int retval = 0; /* safety checks */ - if (radio->disconnected) { - retval = -EIO; + retval = si470x_disconnect_check(radio); + if (retval) goto done; - } + if (freq->tuner != 0) { retval = -EINVAL; goto done; @@ -747,10 +745,10 @@ static int si470x_vidioc_s_hw_freq_seek(struct file *file, void *priv, int retval = 0; /* safety checks */ - if (radio->disconnected) { - retval = -EIO; + retval = si470x_disconnect_check(radio); + if (retval) goto done; - } + if (seek->tuner != 0) { retval = -EINVAL; goto done; diff --git a/drivers/media/radio/si470x/radio-si470x-usb.c b/drivers/media/radio/si470x/radio-si470x-usb.c index 6508161401f7..2f5cf6c7234d 100644 --- a/drivers/media/radio/si470x/radio-si470x-usb.c +++ b/drivers/media/radio/si470x/radio-si470x-usb.c @@ -371,6 +371,23 @@ static int si470x_get_scratch_page_versions(struct si470x_device *radio) /************************************************************************** + * General Driver Functions - DISCONNECT_CHECK + **************************************************************************/ + +/* + * si470x_disconnect_check - check whether radio disconnects + */ +int si470x_disconnect_check(struct si470x_device *radio) +{ + if (radio->disconnected) + return -EIO; + else + return 0; +} + + + +/************************************************************************** * RDS Driver Functions **************************************************************************/ diff --git a/drivers/media/radio/si470x/radio-si470x.h b/drivers/media/radio/si470x/radio-si470x.h index dd71985c4113..d24829b04eb2 100644 --- a/drivers/media/radio/si470x/radio-si470x.h +++ b/drivers/media/radio/si470x/radio-si470x.h @@ -193,6 +193,7 @@ extern const struct v4l2_file_operations si470x_fops; extern struct video_device si470x_viddev_template; int si470x_get_register(struct si470x_device *radio, int regnr); int si470x_set_register(struct si470x_device *radio, int regnr); +int si470x_disconnect_check(struct si470x_device *radio); int si470x_set_freq(struct si470x_device *radio, unsigned int freq); int si470x_start(struct si470x_device *radio); int si470x_stop(struct si470x_device *radio); |