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authorHans Verkuil <hans.verkuil@cisco.com>2012-09-14 10:41:18 (GMT)
committerMauro Carvalho Chehab <mchehab@redhat.com>2012-09-26 13:47:28 (GMT)
commitec6f4328108f1c83d5ac907c0d978fa886ef9627 (patch)
tree5e964c9a73b5ab2cb839af53ebebfe18f5bb28c9
parentd88aab53bd267c9fb0b0451e9acae68091703eab (diff)
[media] v4l2: make vidioc_s_freq_hw_seek const
Write-only ioctls should have a const argument in the ioctl op. Do this conversion for vidioc_s_freq_hw_seek. Adding const for write-only ioctls was decided during the 2012 Media Workshop. Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
-rw-r--r--drivers/media/radio/radio-mr800.c2
-rw-r--r--drivers/media/radio/radio-tea5777.c32
-rw-r--r--drivers/media/radio/radio-wl1273.c2
-rw-r--r--drivers/media/radio/si470x/radio-si470x-common.c4
-rw-r--r--drivers/media/radio/wl128x/fmdrv_v4l2.c2
-rw-r--r--include/media/v4l2-ioctl.h2
-rw-r--r--sound/i2c/other/tea575x-tuner.c2
7 files changed, 24 insertions, 22 deletions
diff --git a/drivers/media/radio/radio-mr800.c b/drivers/media/radio/radio-mr800.c
index 3182b26..720bf0d 100644
--- a/drivers/media/radio/radio-mr800.c
+++ b/drivers/media/radio/radio-mr800.c
@@ -348,7 +348,7 @@ static int vidioc_g_frequency(struct file *file, void *priv,
}
static int vidioc_s_hw_freq_seek(struct file *file, void *priv,
- struct v4l2_hw_freq_seek *seek)
+ const struct v4l2_hw_freq_seek *seek)
{
static u8 buf[8] = {
0x3d, 0x32, 0x0f, 0x08, 0x3d, 0x32, 0x0f, 0x08
diff --git a/drivers/media/radio/radio-tea5777.c b/drivers/media/radio/radio-tea5777.c
index ef82898..c1a2ea6 100644
--- a/drivers/media/radio/radio-tea5777.c
+++ b/drivers/media/radio/radio-tea5777.c
@@ -385,59 +385,61 @@ static int vidioc_s_frequency(struct file *file, void *priv,
}
static int vidioc_s_hw_freq_seek(struct file *file, void *fh,
- struct v4l2_hw_freq_seek *a)
+ const struct v4l2_hw_freq_seek *a)
{
struct radio_tea5777 *tea = video_drvdata(file);
unsigned long timeout;
+ u32 rangelow = a->rangelow;
+ u32 rangehigh = a->rangehigh;
int i, res, spacing;
u32 orig_freq;
if (a->tuner || a->wrap_around)
return -EINVAL;
- if (a->rangelow || a->rangehigh) {
+ if (rangelow || rangehigh) {
for (i = 0; i < ARRAY_SIZE(bands); i++) {
if (i == BAND_AM && !tea->has_am)
continue;
- if (bands[i].rangelow >= a->rangelow &&
- bands[i].rangehigh <= a->rangehigh)
+ if (bands[i].rangelow >= rangelow &&
+ bands[i].rangehigh <= rangehigh)
break;
}
if (i == ARRAY_SIZE(bands))
return -EINVAL; /* No matching band found */
tea->band = i;
- if (tea->freq < a->rangelow || tea->freq > a->rangehigh) {
- tea->freq = clamp(tea->freq, a->rangelow,
- a->rangehigh);
+ if (tea->freq < rangelow || tea->freq > rangehigh) {
+ tea->freq = clamp(tea->freq, rangelow,
+ rangehigh);
res = radio_tea5777_set_freq(tea);
if (res)
return res;
}
} else {
- a->rangelow = bands[tea->band].rangelow;
- a->rangehigh = bands[tea->band].rangehigh;
+ rangelow = bands[tea->band].rangelow;
+ rangehigh = bands[tea->band].rangehigh;
}
spacing = (tea->band == BAND_AM) ? (5 * 16) : (200 * 16); /* kHz */
orig_freq = tea->freq;
tea->write_reg |= TEA5777_W_PROGBLIM_MASK;
- if (tea->seek_rangelow != a->rangelow) {
+ if (tea->seek_rangelow != rangelow) {
tea->write_reg &= ~TEA5777_W_UPDWN_MASK;
- tea->freq = a->rangelow;
+ tea->freq = rangelow;
res = radio_tea5777_set_freq(tea);
if (res)
goto leave;
- tea->seek_rangelow = a->rangelow;
+ tea->seek_rangelow = rangelow;
}
- if (tea->seek_rangehigh != a->rangehigh) {
+ if (tea->seek_rangehigh != rangehigh) {
tea->write_reg |= TEA5777_W_UPDWN_MASK;
- tea->freq = a->rangehigh;
+ tea->freq = rangehigh;
res = radio_tea5777_set_freq(tea);
if (res)
goto leave;
- tea->seek_rangehigh = a->rangehigh;
+ tea->seek_rangehigh = rangehigh;
}
tea->write_reg &= ~TEA5777_W_PROGBLIM_MASK;
diff --git a/drivers/media/radio/radio-wl1273.c b/drivers/media/radio/radio-wl1273.c
index a22ad1c..71968a6 100644
--- a/drivers/media/radio/radio-wl1273.c
+++ b/drivers/media/radio/radio-wl1273.c
@@ -1682,7 +1682,7 @@ static int wl1273_fm_vidioc_s_frequency(struct file *file, void *priv,
#define WL1273_DEFAULT_SEEK_LEVEL 7
static int wl1273_fm_vidioc_s_hw_freq_seek(struct file *file, void *priv,
- struct v4l2_hw_freq_seek *seek)
+ const struct v4l2_hw_freq_seek *seek)
{
struct wl1273_device *radio = video_get_drvdata(video_devdata(file));
struct wl1273_core *core = radio->core;
diff --git a/drivers/media/radio/si470x/radio-si470x-common.c b/drivers/media/radio/si470x/radio-si470x-common.c
index 9bb65e1..74a5c90 100644
--- a/drivers/media/radio/si470x/radio-si470x-common.c
+++ b/drivers/media/radio/si470x/radio-si470x-common.c
@@ -296,7 +296,7 @@ int si470x_set_freq(struct si470x_device *radio, unsigned int freq)
* si470x_set_seek - set seek
*/
static int si470x_set_seek(struct si470x_device *radio,
- struct v4l2_hw_freq_seek *seek)
+ const struct v4l2_hw_freq_seek *seek)
{
int band, retval;
unsigned int freq;
@@ -701,7 +701,7 @@ static int si470x_vidioc_s_frequency(struct file *file, void *priv,
* si470x_vidioc_s_hw_freq_seek - set hardware frequency seek
*/
static int si470x_vidioc_s_hw_freq_seek(struct file *file, void *priv,
- struct v4l2_hw_freq_seek *seek)
+ const struct v4l2_hw_freq_seek *seek)
{
struct si470x_device *radio = video_drvdata(file);
diff --git a/drivers/media/radio/wl128x/fmdrv_v4l2.c b/drivers/media/radio/wl128x/fmdrv_v4l2.c
index db2248e..f816ea6 100644
--- a/drivers/media/radio/wl128x/fmdrv_v4l2.c
+++ b/drivers/media/radio/wl128x/fmdrv_v4l2.c
@@ -403,7 +403,7 @@ static int fm_v4l2_vidioc_s_freq(struct file *file, void *priv,
/* Set hardware frequency seek. If current mode is NOT RX, set it RX. */
static int fm_v4l2_vidioc_s_hw_freq_seek(struct file *file, void *priv,
- struct v4l2_hw_freq_seek *seek)
+ const struct v4l2_hw_freq_seek *seek)
{
struct fmdev *fmdev = video_drvdata(file);
int ret;
diff --git a/include/media/v4l2-ioctl.h b/include/media/v4l2-ioctl.h
index 21f6245..865f95d 100644
--- a/include/media/v4l2-ioctl.h
+++ b/include/media/v4l2-ioctl.h
@@ -233,7 +233,7 @@ struct v4l2_ioctl_ops {
int (*vidioc_log_status) (struct file *file, void *fh);
int (*vidioc_s_hw_freq_seek) (struct file *file, void *fh,
- struct v4l2_hw_freq_seek *a);
+ const struct v4l2_hw_freq_seek *a);
/* Debugging ioctls */
#ifdef CONFIG_VIDEO_ADV_DEBUG
diff --git a/sound/i2c/other/tea575x-tuner.c b/sound/i2c/other/tea575x-tuner.c
index cd79ed5..4a8fad6 100644
--- a/sound/i2c/other/tea575x-tuner.c
+++ b/sound/i2c/other/tea575x-tuner.c
@@ -357,7 +357,7 @@ static int vidioc_s_frequency(struct file *file, void *priv,
}
static int vidioc_s_hw_freq_seek(struct file *file, void *fh,
- struct v4l2_hw_freq_seek *a)
+ const struct v4l2_hw_freq_seek *a)
{
struct snd_tea575x *tea = video_drvdata(file);
unsigned long timeout;

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