V4L2 conversion: dsbr100

From: Mauro Carvalho Chehab <mchehab@infradead.org>

Driver conversion to V4L2 API.
Not tested yet.

Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>

2 files changed, 110 insertions, 59 deletions

diff --git a/linux/drivers/media/radio/Kconfig b/linux/drivers/media/radio/Kconfig
index 57b754ad3..7015517e2 100644
--- a/linux/drivers/media/radio/Kconfig
+++ b/linux/drivers/media/radio/Kconfig
@@ -352,7 +352,7 @@ config RADIO_ZOLTRIX_PORT
 
 config USB_DSBR
 	tristate "D-Link USB FM radio support (EXPERIMENTAL)"
-	depends on USB && VIDEO_V4L1 && EXPERIMENTAL
+	depends on USB && VIDEO_V4L2 && EXPERIMENTAL
 	---help---
 	  Say Y here if you want to connect this type of radio to your
 	  computer's USB port. Note that the audio is not digital, and
@@ -361,6 +361,4 @@ config USB_DSBR
 
 	  To compile this driver as a module, choose M here: the
 	  module will be called dsbr100.
-
 endmenu
-
diff --git a/linux/drivers/media/radio/dsbr100.c b/linux/drivers/media/radio/dsbr100.c
index 45d2b5028..f9fbb2020 100644
--- a/linux/drivers/media/radio/dsbr100.c
+++ b/linux/drivers/media/radio/dsbr100.c
@@ -33,8 +33,11 @@
 
  History:
 
+ Version 0.41:
+	Converted to V4L2 API by Mauro Carvalho Chehab <mchehab@infradead.org>
+
  Version 0.40:
-  Markus: Updates for 2.6.x kernels, code layout changes, name sanitizing
+	Markus: Updates for 2.6.x kernels, code layout changes, name sanitizing
 
  Version 0.30:
 	Markus: Updates for 2.5.x kernel and more ISO compliant source
@@ -65,14 +68,13 @@
 
 */
 
-
 #include <linux/kernel.h>
 #include <linux/module.h>
 #include <linux/init.h>
 #include <linux/slab.h>
 #include <linux/input.h>
 #include "compat.h"
-#include <linux/videodev.h>
+#include <linux/videodev2.h>
 #include <media/v4l2-common.h>
 #include <linux/usb.h>
 #include <linux/smp_lock.h>
@@ -80,7 +82,22 @@
 /*
  * Version Information
  */
-#define DRIVER_VERSION "v0.40"
+#include <linux/version.h>	/* for KERNEL_VERSION MACRO	*/
+
+#define DRIVER_VERSION "v0.41"
+#define RADIO_VERSION KERNEL_VERSION(0,4,1)
+
+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,
+	}
+};
+
 #define DRIVER_AUTHOR "Markus Demleitner <msdemlei@tucana.harvard.edu>"
 #define DRIVER_DESC "D-Link DSB-R100 USB FM radio driver"
 
@@ -120,6 +137,7 @@ typedef struct {
 	int stereo;
 	int users;
 	int removed;
+	int muted;
 } dsbr100_device;
 
 
@@ -139,7 +157,6 @@ static struct video_device dsbr100_videodev_template=
 	.owner =	THIS_MODULE,
 	.name =		"D-Link DSB-R 100",
 	.type =		VID_TYPE_TUNER,
-	.hardware =	VID_HARDWARE_AZTECH,
 	.fops =         &usb_dsbr100_fops,
 	.release = video_device_release,
 };
@@ -173,6 +190,7 @@ static int dsbr100_start(dsbr100_device *radio)
 			USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_IN,
 			0x01, 0x00, radio->transfer_buffer, 8, 300)<0)
 		return -1;
+	radio->muted=0;
 	return (radio->transfer_buffer)[0];
 }
 
@@ -189,6 +207,7 @@ static int dsbr100_stop(dsbr100_device *radio)
 			USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_IN,
 			0x00, 0x00, radio->transfer_buffer, 8, 300)<0)
 		return -1;
+	radio->muted=1;
 	return (radio->transfer_buffer)[0];
 }
 
@@ -298,80 +317,112 @@ static int usb_dsbr100_do_ioctl(struct inode *inode, struct file *file,
 		return -EIO;
 
 	switch(cmd) {
-		case VIDIOCGCAP: {
-			struct video_capability *v = arg;
-
-			memset(v, 0, sizeof(*v));
-			v->type = VID_TYPE_TUNER;
-			v->channels = 1;
-			v->audios = 1;
-			strcpy(v->name, "D-Link R-100 USB FM Radio");
+		case VIDIOC_QUERYCAP:
+		{
+			struct v4l2_capability *v = arg;
+			memset(v,0,sizeof(*v));
+			strlcpy(v->driver, "dsbr100", sizeof (v->driver));
+			strlcpy(v->card, "D-Link R-100 USB FM Radio", sizeof (v->card));
+			sprintf(v->bus_info,"ISA");
+			v->version = RADIO_VERSION;
+			v->capabilities = V4L2_CAP_TUNER;
+
 			return 0;
 		}
-		case VIDIOCGTUNER: {
-			struct video_tuner *v = arg;
+		case VIDIOC_G_TUNER:
+		{
+			struct v4l2_tuner *v = arg;
 
-			dsbr100_getstat(radio);
-			if(v->tuner)	/* Only 1 tuner */
+			if (v->index > 0)
 				return -EINVAL;
+
+			dsbr100_getstat(radio);
+
+			memset(v,0,sizeof(*v));
+			strcpy(v->name, "FM");
+			v->type = V4L2_TUNER_RADIO;
+
 			v->rangelow = FREQ_MIN*FREQ_MUL;
 			v->rangehigh = FREQ_MAX*FREQ_MUL;
-			v->flags = VIDEO_TUNER_LOW;
-			v->mode = VIDEO_MODE_AUTO;
+
+
+			v->rxsubchans =V4L2_TUNER_SUB_MONO|V4L2_TUNER_SUB_STEREO;
+			v->capability=V4L2_TUNER_CAP_LOW;
+			if(radio->stereo)
+				v->audmode = V4L2_TUNER_MODE_STEREO;
+			else
+				v->audmode = V4L2_TUNER_MODE_MONO;
 			v->signal = radio->stereo*0x7000;
-				/* Don't know how to get signal strength */
-			v->flags |= VIDEO_TUNER_STEREO_ON*radio->stereo;
-			strcpy(v->name, "DSB R-100");
-			return 0;
-		}
-		case VIDIOCSTUNER: {
-			struct video_tuner *v = arg;
 
-			if(v->tuner!=0)
-				return -EINVAL;
-			/* Only 1 tuner so no setting needed ! */
 			return 0;
 		}
-		case VIDIOCGFREQ: {
-			int *freq = arg;
+		case VIDIOC_S_TUNER:
+		{
+			struct v4l2_tuner *v = arg;
 
-			if (radio->curfreq==-1)
+			if (v->index > 0)
 				return -EINVAL;
-			*freq = radio->curfreq;
+
 			return 0;
 		}
-		case VIDIOCSFREQ: {
-			int *freq = arg;
+		case VIDIOC_S_FREQUENCY:
+		{
+			struct v4l2_frequency *f = arg;
 
-			radio->curfreq = *freq;
+			radio->curfreq = f->frequency;
 			if (dsbr100_setfreq(radio, radio->curfreq)==-1)
 				warn("Set frequency failed");
 			return 0;
 		}
-		case VIDIOCGAUDIO: {
-			struct video_audio *v = arg;
-
-			memset(v, 0, sizeof(*v));
-			v->flags |= VIDEO_AUDIO_MUTABLE;
-			v->mode = VIDEO_SOUND_STEREO;
-			v->volume = 1;
-			v->step = 1;
-			strcpy(v->name, "Radio");
+		case VIDIOC_G_FREQUENCY:
+		{
+			struct v4l2_frequency *f = arg;
+
+			f->type = V4L2_TUNER_RADIO;
+			f->frequency = radio->curfreq;
+
 			return 0;
 		}
-		case VIDIOCSAUDIO: {
-			struct video_audio *v = arg;
+		case VIDIOC_QUERYCTRL:
+		{
+			struct v4l2_queryctrl *qc = arg;
+			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;
+		}
+		case VIDIOC_G_CTRL:
+		{
+			struct v4l2_control *ctrl= arg;
 
-			if (v->audio)
-				return -EINVAL;
-			if (v->flags&VIDEO_AUDIO_MUTE) {
-				if (dsbr100_stop(radio)==-1)
-					warn("Radio did not respond properly");
+			switch (ctrl->id) {
+			case V4L2_CID_AUDIO_MUTE:
+				ctrl->value=radio->muted;
 			}
-			else
-				if (dsbr100_start(radio)==-1)
-					warn("Radio did not respond properly");
-			return 0;
+			return -EINVAL;
+		}
+		case VIDIOC_S_CTRL:
+		{
+			struct v4l2_control *ctrl= arg;
+
+			switch (ctrl->id) {
+			case V4L2_CID_AUDIO_MUTE:
+				if (ctrl->value) {
+					if (dsbr100_stop(radio)==-1)
+						warn("Radio did not respond properly");
+				} else {
+					if (dsbr100_start(radio)==-1)
+						warn("Radio did not respond properly");
+				}
+				return (0);
+			}
+			return -EINVAL;
 		}
 		default:
 			return -ENOIOCTLCMD;
@@ -389,6 +440,8 @@ static int usb_dsbr100_open(struct inode *inode, struct file *file)
 	dsbr100_device *radio=video_get_drvdata(video_devdata(file));
 
 	radio->users = 1;
+	radio->muted = 1;
+
 	if (dsbr100_start(radio)<0) {
 		warn("Radio did not start up properly");
 		radio->users = 0;