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authorHans Verkuil <hans.verkuil@cisco.com>2013-01-30 05:50:28 -0300
committerMauro Carvalho Chehab <mchehab@redhat.com>2013-02-05 18:12:53 -0200
commit7f51a6108382dcbf2d5e9a268e86255d72318737 (patch)
tree2eac61b98623b07903196a49f367948303630ed1 /drivers/media/radio
parent1a64b63481f6ad5f2db6ee8f3cad31e882ad8a27 (diff)
downloadlinux-linaro-stable-7f51a6108382dcbf2d5e9a268e86255d72318737.tar.gz
[media] radio-miropcm20: convert to the control framework
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers/media/radio')
-rw-r--r--drivers/media/radio/radio-miropcm20.c64
1 files changed, 26 insertions, 38 deletions
diff --git a/drivers/media/radio/radio-miropcm20.c b/drivers/media/radio/radio-miropcm20.c
index 4b7c1640edb0..061ebcf4876d 100644
--- a/drivers/media/radio/radio-miropcm20.c
+++ b/drivers/media/radio/radio-miropcm20.c
@@ -17,6 +17,7 @@
#include <linux/videodev2.h>
#include <media/v4l2-device.h>
#include <media/v4l2-ioctl.h>
+#include <media/v4l2-ctrls.h>
#include <sound/aci.h>
static int radio_nr = -1;
@@ -30,6 +31,7 @@ MODULE_PARM_DESC(mono, "Force tuner into mono mode.");
struct pcm20 {
struct v4l2_device v4l2_dev;
struct video_device vdev;
+ struct v4l2_ctrl_handler ctrl_handler;
unsigned long freq;
int muted;
struct snd_miro_aci *aci;
@@ -138,44 +140,16 @@ static int vidioc_s_frequency(struct file *file, void *priv,
return 0;
}
-static int vidioc_queryctrl(struct file *file, void *priv,
- struct v4l2_queryctrl *qc)
+static int pcm20_s_ctrl(struct v4l2_ctrl *ctrl)
{
- switch (qc->id) {
- case V4L2_CID_AUDIO_MUTE:
- return v4l2_ctrl_query_fill(qc, 0, 1, 1, 1);
- }
- return -EINVAL;
-}
-
-static int vidioc_g_ctrl(struct file *file, void *priv,
- struct v4l2_control *ctrl)
-{
- struct pcm20 *dev = video_drvdata(file);
+ struct pcm20 *dev = container_of(ctrl->handler, struct pcm20, ctrl_handler);
switch (ctrl->id) {
case V4L2_CID_AUDIO_MUTE:
- ctrl->value = dev->muted;
- break;
- default:
- return -EINVAL;
+ pcm20_mute(dev, ctrl->val);
+ return 0;
}
- return 0;
-}
-
-static int vidioc_s_ctrl(struct file *file, void *priv,
- struct v4l2_control *ctrl)
-{
- struct pcm20 *dev = video_drvdata(file);
-
- switch (ctrl->id) {
- case V4L2_CID_AUDIO_MUTE:
- pcm20_mute(dev, ctrl->value);
- break;
- default:
- return -EINVAL;
- }
- return 0;
+ return -EINVAL;
}
static const struct v4l2_ioctl_ops pcm20_ioctl_ops = {
@@ -184,15 +158,17 @@ static const struct v4l2_ioctl_ops pcm20_ioctl_ops = {
.vidioc_s_tuner = vidioc_s_tuner,
.vidioc_g_frequency = vidioc_g_frequency,
.vidioc_s_frequency = vidioc_s_frequency,
- .vidioc_queryctrl = vidioc_queryctrl,
- .vidioc_g_ctrl = vidioc_g_ctrl,
- .vidioc_s_ctrl = vidioc_s_ctrl,
+};
+
+static const struct v4l2_ctrl_ops pcm20_ctrl_ops = {
+ .s_ctrl = pcm20_s_ctrl,
};
static int __init pcm20_init(void)
{
struct pcm20 *dev = &pcm20_card;
struct v4l2_device *v4l2_dev = &dev->v4l2_dev;
+ struct v4l2_ctrl_handler *hdl;
int res;
dev->aci = snd_aci_get_aci();
@@ -210,6 +186,16 @@ static int __init pcm20_init(void)
return -EINVAL;
}
+ hdl = &dev->ctrl_handler;
+ v4l2_ctrl_handler_init(hdl, 1);
+ v4l2_ctrl_new_std(hdl, &pcm20_ctrl_ops,
+ V4L2_CID_AUDIO_MUTE, 0, 1, 1, 1);
+ v4l2_dev->ctrl_handler = hdl;
+ if (hdl->error) {
+ res = hdl->error;
+ v4l2_err(v4l2_dev, "Could not register control\n");
+ goto err_hdl;
+ }
strlcpy(dev->vdev.name, v4l2_dev->name, sizeof(dev->vdev.name));
dev->vdev.v4l2_dev = v4l2_dev;
dev->vdev.fops = &pcm20_fops;
@@ -219,11 +205,12 @@ static int __init pcm20_init(void)
video_set_drvdata(&dev->vdev, dev);
if (video_register_device(&dev->vdev, VFL_TYPE_RADIO, radio_nr) < 0)
- goto fail;
+ goto err_hdl;
v4l2_info(v4l2_dev, "Mirosound PCM20 Radio tuner\n");
return 0;
-fail:
+err_hdl:
+ v4l2_ctrl_handler_free(hdl);
v4l2_device_unregister(v4l2_dev);
return -EINVAL;
}
@@ -237,6 +224,7 @@ static void __exit pcm20_cleanup(void)
struct pcm20 *dev = &pcm20_card;
video_unregister_device(&dev->vdev);
+ v4l2_ctrl_handler_free(&dev->ctrl_handler);
v4l2_device_unregister(&dev->v4l2_dev);
}