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

Signed-off-by: Mauro Carvalho Chehab <[e-mail]>

include/sound/tea575x-tuner.h

···
  *
  */
 
-#include <linux/videodev.h>
+#include <linux/videodev2.h>
 #include <media/v4l2-dev.h>
+#include <media/v4l2-ioctl.h>
 
 struct snd_tea575x;
 
···
 
 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 */

sound/i2c/other/tea575x-tuner.c

···
 #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 <[e-mail]>");
 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
···
 #define TEA575X_BIT_SEARCH_150_1000  (3<<16)	/* FM > 150uV, AM > 1000uV */
 #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
···
  * 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 ! */
-			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 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 0;
-		}
-		default:
-			return -ENOIOCTLCMD;
-	}
+	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 void snd_tea575x_release(struct video_device *vfd)
+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;
+		}
+	}
+	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;
+		}
+	}
+	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;
+		}
+	}
+	return -EINVAL;
+}
+
+static int vidioc_g_input(struct file *filp, void *priv, unsigned int *i)
+{
+	*i = 0;
+	return 0;
+}
+
+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)
···
 	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");
-		return;
-	}
-	tea->vd_registered = 1;
-
 	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;
+	}
+
+	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;
 	}
 }
 

sound/pci/Kconfig

···
 config SND_FM801_TEA575X_BOOL
 	bool "ForteMedia FM801 + TEA5757 tuner"
 	depends on SND_FM801
-	depends on VIDEO_V4L1=y || VIDEO_V4L1=SND_FM801
+	depends on VIDEO_V4L2=y || VIDEO_V4L2=SND_FM801
 	help
 	  Say Y here to include support for soundcards based on the ForteMedia
 	  FM801 chip with a TEA5757 tuner connected to GPIO1-3 pins (Media