V4L/DVB (10771): tea575x-tuner: convert it to V4L2 API

Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

1 files changed, 207 insertions, 95 deletions

diff --git a/sound/i2c/other/tea575x-tuner.c b/sound/i2c/other/tea575x-tuner.c
index 9d98a6658ac9..d31c373e076d 100644
--- a/sound/i2c/other/tea575x-tuner.c
+++ b/sound/i2c/other/tea575x-tuner.c
@@ -24,6 +24,7 @@
 #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>
 
@@ -31,6 +32,13 @@ MODULE_AUTHOR("Jaroslav Kysela <perex@perex.cz>");
 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
  */
@@ -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
  */
@@ -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)
@@ -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;
         }
 }