[media] tea575x: convert to control framework
Convert tea575x-tuner to use the new V4L2 control framework. Also add ext_init() callback that can be used by a card driver for additional initialization right before registering the video device (for SF16-FMR2). Also embed struct video_device to struct snd_tea575x to simplify the code. Signed-off-by: Ondrej Zary <linux@rainbow-software.org> Acked-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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@ -23,8 +23,8 @@
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*/
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#include <linux/videodev2.h>
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#include <media/v4l2-ctrls.h>
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#include <media/v4l2-dev.h>
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#include <media/v4l2-ioctl.h>
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#define TEA575X_FMIF 10700
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@ -42,7 +42,7 @@ struct snd_tea575x_ops {
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};
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struct snd_tea575x {
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struct video_device *vd; /* video device */
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struct video_device vd; /* video device */
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bool tea5759; /* 5759 chip is present */
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bool mute; /* Device is muted? */
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bool stereo; /* receiving stereo */
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@ -54,6 +54,8 @@ struct snd_tea575x {
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void *private_data;
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u8 card[32];
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u8 bus_info[32];
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struct v4l2_ctrl_handler ctrl_handler;
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int (*ext_init)(struct snd_tea575x *tea);
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};
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int snd_tea575x_init(struct snd_tea575x *tea);
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@ -22,11 +22,11 @@
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#include <asm/io.h>
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#include <linux/delay.h>
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#include <linux/interrupt.h>
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#include <linux/init.h>
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#include <linux/slab.h>
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#include <linux/version.h>
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#include <sound/core.h>
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#include <media/v4l2-dev.h>
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#include <media/v4l2-ioctl.h>
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#include <sound/tea575x-tuner.h>
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MODULE_AUTHOR("Jaroslav Kysela <perex@perex.cz>");
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@ -62,17 +62,6 @@ module_param(radio_nr, int, 0);
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#define TEA575X_BIT_DUMMY (1<<15) /* buffer */
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#define TEA575X_BIT_FREQ_MASK 0x7fff
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static struct v4l2_queryctrl radio_qctrl[] = {
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{
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.id = V4L2_CID_AUDIO_MUTE,
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.name = "Mute",
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.minimum = 0,
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.maximum = 1,
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.default_value = 1,
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.type = V4L2_CTRL_TYPE_BOOLEAN,
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}
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};
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/*
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* lowlevel part
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*/
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@ -266,47 +255,17 @@ static int vidioc_s_audio(struct file *file, void *priv,
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return 0;
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}
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static int vidioc_queryctrl(struct file *file, void *priv,
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struct v4l2_queryctrl *qc)
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static int tea575x_s_ctrl(struct v4l2_ctrl *ctrl)
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{
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int i;
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for (i = 0; i < ARRAY_SIZE(radio_qctrl); i++) {
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if (qc->id && qc->id == radio_qctrl[i].id) {
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memcpy(qc, &(radio_qctrl[i]),
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sizeof(*qc));
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return 0;
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}
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}
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return -EINVAL;
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}
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static int vidioc_g_ctrl(struct file *file, void *priv,
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struct v4l2_control *ctrl)
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{
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struct snd_tea575x *tea = video_drvdata(file);
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struct snd_tea575x *tea = container_of(ctrl->handler, struct snd_tea575x, ctrl_handler);
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switch (ctrl->id) {
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case V4L2_CID_AUDIO_MUTE:
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ctrl->value = tea->mute;
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tea->mute = ctrl->val;
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snd_tea575x_set_freq(tea);
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return 0;
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}
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return -EINVAL;
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}
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static int vidioc_s_ctrl(struct file *file, void *priv,
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struct v4l2_control *ctrl)
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{
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struct snd_tea575x *tea = video_drvdata(file);
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switch (ctrl->id) {
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case V4L2_CID_AUDIO_MUTE:
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if (tea->mute != ctrl->value) {
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tea->mute = ctrl->value;
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snd_tea575x_set_freq(tea);
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}
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return 0;
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}
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return -EINVAL;
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}
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@ -355,16 +314,17 @@ static const struct v4l2_ioctl_ops tea575x_ioctl_ops = {
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.vidioc_s_input = vidioc_s_input,
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.vidioc_g_frequency = vidioc_g_frequency,
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.vidioc_s_frequency = vidioc_s_frequency,
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.vidioc_queryctrl = vidioc_queryctrl,
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.vidioc_g_ctrl = vidioc_g_ctrl,
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.vidioc_s_ctrl = vidioc_s_ctrl,
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};
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static struct video_device tea575x_radio = {
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.name = "tea575x-tuner",
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.fops = &tea575x_fops,
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.ioctl_ops = &tea575x_ioctl_ops,
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.release = video_device_release,
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.release = video_device_release_empty,
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};
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static const struct v4l2_ctrl_ops tea575x_ctrl_ops = {
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.s_ctrl = tea575x_s_ctrl,
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};
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/*
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@ -373,7 +333,6 @@ static struct video_device tea575x_radio = {
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int snd_tea575x_init(struct snd_tea575x *tea)
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{
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int retval;
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struct video_device *tea575x_radio_inst;
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tea->mute = 1;
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@ -384,40 +343,45 @@ int snd_tea575x_init(struct snd_tea575x *tea)
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tea->in_use = 0;
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tea->val = TEA575X_BIT_BAND_FM | TEA575X_BIT_SEARCH_10_40;
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tea->freq = 90500 * 16; /* 90.5Mhz default */
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snd_tea575x_set_freq(tea);
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tea575x_radio_inst = video_device_alloc();
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if (tea575x_radio_inst == NULL) {
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printk(KERN_ERR "tea575x-tuner: not enough memory\n");
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return -ENOMEM;
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}
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tea->vd = tea575x_radio;
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video_set_drvdata(&tea->vd, tea);
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memcpy(tea575x_radio_inst, &tea575x_radio, sizeof(tea575x_radio));
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strcpy(tea575x_radio.name, tea->tea5759 ?
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"TEA5759 radio" : "TEA5757 radio");
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video_set_drvdata(tea575x_radio_inst, tea);
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retval = video_register_device(tea575x_radio_inst,
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VFL_TYPE_RADIO, radio_nr);
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v4l2_ctrl_handler_init(&tea->ctrl_handler, 1);
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tea->vd.ctrl_handler = &tea->ctrl_handler;
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v4l2_ctrl_new_std(&tea->ctrl_handler, &tea575x_ctrl_ops, V4L2_CID_AUDIO_MUTE, 0, 1, 1, 1);
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retval = tea->ctrl_handler.error;
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if (retval) {
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printk(KERN_ERR "tea575x-tuner: can't register video device!\n");
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kfree(tea575x_radio_inst);
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printk(KERN_ERR "tea575x-tuner: can't initialize controls\n");
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v4l2_ctrl_handler_free(&tea->ctrl_handler);
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return retval;
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}
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snd_tea575x_set_freq(tea);
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tea->vd = tea575x_radio_inst;
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if (tea->ext_init) {
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retval = tea->ext_init(tea);
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if (retval) {
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v4l2_ctrl_handler_free(&tea->ctrl_handler);
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return retval;
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}
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}
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v4l2_ctrl_handler_setup(&tea->ctrl_handler);
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retval = video_register_device(&tea->vd, VFL_TYPE_RADIO, radio_nr);
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if (retval) {
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printk(KERN_ERR "tea575x-tuner: can't register video device!\n");
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v4l2_ctrl_handler_free(&tea->ctrl_handler);
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return retval;
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}
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return 0;
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}
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void snd_tea575x_exit(struct snd_tea575x *tea)
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{
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if (tea->vd) {
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video_unregister_device(tea->vd);
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tea->vd = NULL;
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}
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video_unregister_device(&tea->vd);
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v4l2_ctrl_handler_free(&tea->ctrl_handler);
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}
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static int __init alsa_tea575x_module_init(void)
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