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V4L/DVB (10771): tea575x-tuner: convert it to V4L2 API
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Signed-off-by: Mauro Carvalho Chehab <[email protected]>
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Mauro Carvalho Chehab committed Mar 30, 2009
1 parent 85f8841 commit 9b76ede
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Showing 3 changed files with 212 additions and 100 deletions.
8 changes: 4 additions & 4 deletions include/sound/tea575x-tuner.h
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Original file line number Diff line number Diff line change
Expand Up @@ -22,8 +22,9 @@
*
*/

#include <linux/videodev.h>
#include <linux/videodev2.h>
#include <media/v4l2-dev.h>
#include <media/v4l2-ioctl.h>

struct snd_tea575x;

Expand All @@ -35,11 +36,10 @@ struct snd_tea575x_ops {

struct snd_tea575x {
struct snd_card *card;
struct video_device vd; /* video device */
struct v4l2_file_operations fops;
struct video_device *vd; /* video device */
int dev_nr; /* requested device number + 1 */
int vd_registered; /* video device is registered */
int tea5759; /* 5759 chip is present */
int mute; /* Device is muted? */
unsigned int freq_fixup; /* crystal onboard */
unsigned int val; /* hw value */
unsigned long freq; /* frequency */
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302 changes: 207 additions & 95 deletions sound/i2c/other/tea575x-tuner.c
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Original file line number Diff line number Diff line change
Expand Up @@ -24,13 +24,21 @@
#include <linux/delay.h>
#include <linux/interrupt.h>
#include <linux/init.h>
#include <linux/version.h>
#include <sound/core.h>
#include <sound/tea575x-tuner.h>

MODULE_AUTHOR("Jaroslav Kysela <[email protected]>");
MODULE_DESCRIPTION("Routines for control of TEA5757/5759 Philips AM/FM radio tuner chips");
MODULE_LICENSE("GPL");

static int radio_nr = -1;
module_param(radio_nr, int, 0);

#define RADIO_VERSION KERNEL_VERSION(0, 0, 2)
#define FREQ_LO (87 * 16000)
#define FREQ_HI (108 * 16000)

/*
* definitions
*/
Expand All @@ -53,6 +61,17 @@ MODULE_LICENSE("GPL");
#define TEA575X_BIT_DUMMY (1<<15) /* buffer */
#define TEA575X_BIT_FREQ_MASK 0x7fff

static struct v4l2_queryctrl radio_qctrl[] = {
{
.id = V4L2_CID_AUDIO_MUTE,
.name = "Mute",
.minimum = 0,
.maximum = 1,
.default_value = 1,
.type = V4L2_CTRL_TYPE_BOOLEAN,
}
};

/*
* lowlevel part
*/
Expand Down Expand Up @@ -84,94 +103,146 @@ static void snd_tea575x_set_freq(struct snd_tea575x *tea)
* Linux Video interface
*/

static long snd_tea575x_ioctl(struct file *file,
unsigned int cmd, unsigned long data)
static int vidioc_querycap(struct file *file, void *priv,
struct v4l2_capability *v)
{
struct snd_tea575x *tea = video_drvdata(file);
void __user *arg = (void __user *)data;

switch(cmd) {
case VIDIOCGCAP:
{
struct video_capability v;
v.type = VID_TYPE_TUNER;
v.channels = 1;
v.audios = 1;
/* No we don't do pictures */
v.maxwidth = 0;
v.maxheight = 0;
v.minwidth = 0;
v.minheight = 0;
strcpy(v.name, tea->tea5759 ? "TEA5759" : "TEA5757");
if (copy_to_user(arg,&v,sizeof(v)))
return -EFAULT;
return 0;
}
case VIDIOCGTUNER:
{
struct video_tuner v;
if (copy_from_user(&v, arg,sizeof(v))!=0)
return -EFAULT;
if (v.tuner) /* Only 1 tuner */
return -EINVAL;
v.rangelow = (87*16000);
v.rangehigh = (108*16000);
v.flags = VIDEO_TUNER_LOW;
v.mode = VIDEO_MODE_AUTO;
strcpy(v.name, "FM");
v.signal = 0xFFFF;
if (copy_to_user(arg, &v, sizeof(v)))
return -EFAULT;
return 0;
}
case VIDIOCSTUNER:
{
struct video_tuner v;
if(copy_from_user(&v, arg, sizeof(v)))
return -EFAULT;
if(v.tuner!=0)
return -EINVAL;
/* Only 1 tuner so no setting needed ! */

strcpy(v->card, tea->tea5759 ? "TEA5759" : "TEA5757");
strlcpy(v->driver, "tea575x-tuner", sizeof(v->driver));
strlcpy(v->card, "Maestro Radio", sizeof(v->card));
sprintf(v->bus_info, "PCI");
v->version = RADIO_VERSION;
v->capabilities = V4L2_CAP_TUNER;
return 0;
}

static int vidioc_g_tuner(struct file *file, void *priv,
struct v4l2_tuner *v)
{
if (v->index > 0)
return -EINVAL;

strcpy(v->name, "FM");
v->type = V4L2_TUNER_RADIO;
v->rangelow = FREQ_LO;
v->rangehigh = FREQ_HI;
v->rxsubchans = V4L2_TUNER_SUB_MONO|V4L2_TUNER_SUB_STEREO;
v->capability = V4L2_TUNER_CAP_LOW;
v->audmode = V4L2_TUNER_MODE_MONO;
v->signal = 0xffff;
return 0;
}

static int vidioc_s_tuner(struct file *file, void *priv,
struct v4l2_tuner *v)
{
if (v->index > 0)
return -EINVAL;
return 0;
}

static int vidioc_g_frequency(struct file *file, void *priv,
struct v4l2_frequency *f)
{
struct snd_tea575x *tea = video_drvdata(file);

f->type = V4L2_TUNER_RADIO;
f->frequency = tea->freq;
return 0;
}

static int vidioc_s_frequency(struct file *file, void *priv,
struct v4l2_frequency *f)
{
struct snd_tea575x *tea = video_drvdata(file);

if (f->frequency < FREQ_LO || f->frequency > FREQ_HI)
return -EINVAL;

tea->freq = f->frequency;

snd_tea575x_set_freq(tea);

return 0;
}

static int vidioc_g_audio(struct file *file, void *priv,
struct v4l2_audio *a)
{
if (a->index > 1)
return -EINVAL;

strcpy(a->name, "Radio");
a->capability = V4L2_AUDCAP_STEREO;
return 0;
}

static int vidioc_s_audio(struct file *file, void *priv,
struct v4l2_audio *a)
{
if (a->index != 0)
return -EINVAL;
return 0;
}

static int vidioc_queryctrl(struct file *file, void *priv,
struct v4l2_queryctrl *qc)
{
int i;

for (i = 0; i < ARRAY_SIZE(radio_qctrl); i++) {
if (qc->id && qc->id == radio_qctrl[i].id) {
memcpy(qc, &(radio_qctrl[i]),
sizeof(*qc));
return 0;
}
case VIDIOCGFREQ:
if(copy_to_user(arg, &tea->freq, sizeof(tea->freq)))
return -EFAULT;
return 0;
case VIDIOCSFREQ:
if(copy_from_user(&tea->freq, arg, sizeof(tea->freq)))
return -EFAULT;
snd_tea575x_set_freq(tea);
return 0;
case VIDIOCGAUDIO:
{
struct video_audio v;
memset(&v, 0, sizeof(v));
strcpy(v.name, "Radio");
if(copy_to_user(arg,&v, sizeof(v)))
return -EFAULT;
}
return -EINVAL;
}

static int vidioc_g_ctrl(struct file *file, void *priv,
struct v4l2_control *ctrl)
{
struct snd_tea575x *tea = video_drvdata(file);

switch (ctrl->id) {
case V4L2_CID_AUDIO_MUTE:
if (tea->ops->mute) {
ctrl->value = tea->mute;
return 0;
}
case VIDIOCSAUDIO:
{
struct video_audio v;
if(copy_from_user(&v, arg, sizeof(v)))
return -EFAULT;
if (tea->ops->mute)
tea->ops->mute(tea,
(v.flags &
VIDEO_AUDIO_MUTE) ? 1 : 0);
if(v.audio)
return -EINVAL;
}
return -EINVAL;
}

static int vidioc_s_ctrl(struct file *file, void *priv,
struct v4l2_control *ctrl)
{
struct snd_tea575x *tea = video_drvdata(file);

switch (ctrl->id) {
case V4L2_CID_AUDIO_MUTE:
if (tea->ops->mute) {
tea->ops->mute(tea, ctrl->value);
tea->mute = 1;
return 0;
}
default:
return -ENOIOCTLCMD;
}
return -EINVAL;
}

static int vidioc_g_input(struct file *filp, void *priv, unsigned int *i)
{
*i = 0;
return 0;
}

static void snd_tea575x_release(struct video_device *vfd)
static int vidioc_s_input(struct file *filp, void *priv, unsigned int i)
{
if (i != 0)
return -EINVAL;
return 0;
}

static int snd_tea575x_exclusive_open(struct file *file)
Expand All @@ -189,50 +260,91 @@ static int snd_tea575x_exclusive_release(struct file *file)
return 0;
}

static const struct v4l2_file_operations tea575x_fops = {
.owner = THIS_MODULE,
.open = snd_tea575x_exclusive_open,
.release = snd_tea575x_exclusive_release,
.ioctl = video_ioctl2,
};

static const struct v4l2_ioctl_ops tea575x_ioctl_ops = {
.vidioc_querycap = vidioc_querycap,
.vidioc_g_tuner = vidioc_g_tuner,
.vidioc_s_tuner = vidioc_s_tuner,
.vidioc_g_audio = vidioc_g_audio,
.vidioc_s_audio = vidioc_s_audio,
.vidioc_g_input = vidioc_g_input,
.vidioc_s_input = vidioc_s_input,
.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 struct video_device tea575x_radio = {
.name = "tea575x-tuner",
.fops = &tea575x_fops,
.ioctl_ops = &tea575x_ioctl_ops,
.release = video_device_release,
};

/*
* initialize all the tea575x chips
*/
void snd_tea575x_init(struct snd_tea575x *tea)
{
int retval;
unsigned int val;
struct video_device *tea575x_radio_inst;

val = tea->ops->read(tea);
if (val == 0x1ffffff || val == 0) {
snd_printk(KERN_ERR "Cannot find TEA575x chip\n");
snd_printk(KERN_ERR
"tea575x-tuner: Cannot find TEA575x chip\n");
return;
}

memset(&tea->vd, 0, sizeof(tea->vd));
strcpy(tea->vd.name, tea->tea5759 ? "TEA5759 radio" : "TEA5757 radio");
tea->vd.release = snd_tea575x_release;
video_set_drvdata(&tea->vd, tea);
tea->vd.fops = &tea->fops;
tea->in_use = 0;
tea->fops.owner = tea->card->module;
tea->fops.open = snd_tea575x_exclusive_open;
tea->fops.release = snd_tea575x_exclusive_release;
tea->fops.ioctl = snd_tea575x_ioctl;
if (video_register_device(&tea->vd, VFL_TYPE_RADIO, tea->dev_nr - 1) < 0) {
snd_printk(KERN_ERR "unable to register tea575x tuner\n");
tea->val = TEA575X_BIT_BAND_FM | TEA575X_BIT_SEARCH_10_40;
tea->freq = 90500 * 16; /* 90.5Mhz default */

tea575x_radio_inst = video_device_alloc();
if (tea575x_radio_inst == NULL) {
printk(KERN_ERR "tea575x-tuner: not enough memory\n");
return;
}
tea->vd_registered = 1;

tea->val = TEA575X_BIT_BAND_FM | TEA575X_BIT_SEARCH_10_40;
tea->freq = 90500 * 16; /* 90.5Mhz default */
memcpy(tea575x_radio_inst, &tea575x_radio, sizeof(tea575x_radio));

strcpy(tea575x_radio.name, tea->tea5759 ?
"TEA5759 radio" : "TEA5757 radio");

video_set_drvdata(tea575x_radio_inst, tea);

retval = video_register_device(tea575x_radio_inst,
VFL_TYPE_RADIO, radio_nr);
if (retval) {
printk(KERN_ERR "tea575x-tuner: can't register video device!\n");
kfree(tea575x_radio_inst);
return;
}

snd_tea575x_set_freq(tea);

/* mute on init */
if (tea->ops->mute)
if (tea->ops->mute) {
tea->ops->mute(tea, 1);
tea->mute = 1;
}
tea->vd = tea575x_radio_inst;
}

void snd_tea575x_exit(struct snd_tea575x *tea)
{
if (tea->vd_registered) {
video_unregister_device(&tea->vd);
tea->vd_registered = 0;
if (tea->vd) {
video_unregister_device(tea->vd);
tea->vd = NULL;
}
}

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