From 7f51a6108382dcbf2d5e9a268e86255d72318737 Mon Sep 17 00:00:00 2001 From: Hans Verkuil Date: Wed, 30 Jan 2013 05:50:28 -0300 Subject: [PATCH] [media] radio-miropcm20: convert to the control framework Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab --- drivers/media/radio/radio-miropcm20.c | 66 +++++++++++---------------- 1 file changed, 27 insertions(+), 39 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 #include #include +#include #include 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; @@ -138,61 +140,35 @@ 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) { + struct pcm20 *dev = container_of(ctrl->handler, struct pcm20, ctrl_handler); + + switch (ctrl->id) { case V4L2_CID_AUDIO_MUTE: - return v4l2_ctrl_query_fill(qc, 0, 1, 1, 1); + pcm20_mute(dev, ctrl->val); + return 0; } return -EINVAL; } -static int vidioc_g_ctrl(struct file *file, void *priv, - struct v4l2_control *ctrl) -{ - struct pcm20 *dev = video_drvdata(file); - - switch (ctrl->id) { - case V4L2_CID_AUDIO_MUTE: - ctrl->value = dev->muted; - break; - default: - return -EINVAL; - } - 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; -} - static const struct v4l2_ioctl_ops pcm20_ioctl_ops = { .vidioc_querycap = vidioc_querycap, .vidioc_g_tuner = vidioc_g_tuner, .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); }