V4L/DVB (4346): V4L2 conversion: radio_aimslab

Driver conversion to V4L2 API. 
Require some testing, since this obsolete hardware is not
common those days.

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

2 files changed, 107 insertions, 43 deletions

diff --git a/drivers/media/radio/Kconfig b/drivers/media/radio/Kconfig
index 220076b1b956..f17fc21247e7 100644
--- a/drivers/media/radio/Kconfig
+++ b/drivers/media/radio/Kconfig
@@ -25,7 +25,7 @@ config RADIO_CADET
 
 config RADIO_RTRACK
         tristate "AIMSlab RadioTrack (aka RadioReveal) support"
-        depends on ISA && VIDEO_V4L1
+        depends on ISA && VIDEO_V4L2
         ---help---
           Choose Y here if you have one of these FM radio cards, and then fill
           in the port address below.
diff --git a/drivers/media/radio/radio-aimslab.c b/drivers/media/radio/radio-aimslab.c
index 5a9c1f14e353..7b9043f9d9bc 100644
--- a/drivers/media/radio/radio-aimslab.c
+++ b/drivers/media/radio/radio-aimslab.c
@@ -1,5 +1,6 @@
 /* radiotrack (radioreveal) driver for Linux radio support
  * (c) 1997 M. Kirkwood
+ * Converted to V4L2 API by Mauro Carvalho Chehab <mchehab@infradead.org>
  * Converted to new API by Alan Cox <Alan.Cox@linux.org>
  * Various bugfixes and enhancements by Russell Kroll <rkroll@exploits.org>
  *
@@ -33,10 +34,13 @@
 #include <linux/delay.h>        /* udelay                       */
 #include <asm/io.h>             /* outb, outb_p                 */
 #include <asm/uaccess.h>        /* copy to/from user            */
-#include <linux/videodev.h>     /* kernel radio structs         */
+#include <linux/videodev2.h>    /* kernel radio structs         */
 #include <media/v4l2-common.h>
 #include <asm/semaphore.h>      /* Lock for the I/O             */
 
+#include <linux/version.h>      /* for KERNEL_VERSION MACRO     */
+#define RADIO_VERSION KERNEL_VERSION(0,0,2)
+
 #ifndef CONFIG_RADIO_RTRACK_PORT
 #define CONFIG_RADIO_RTRACK_PORT -1
 #endif
@@ -208,6 +212,25 @@ static int rt_getsigstr(struct rt_device *dev)
         return 1;               /* signal present               */
 }
 
+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,
+        },{
+                .id            = V4L2_CID_AUDIO_VOLUME,
+                .name          = "Volume",
+                .minimum       = 0,
+                .maximum       = 0xff,
+                .step          = 1,
+                .default_value = 0xff,
+                .type          = V4L2_CTRL_TYPE_INTEGER,
+        }
+};
+
 static int rt_do_ioctl(struct inode *inode, struct file *file,
                        unsigned int cmd, void *arg)
 {
@@ -216,73 +239,114 @@ static int rt_do_ioctl(struct inode *inode, struct file *file,
 
         switch(cmd)
         {
-                case VIDIOCGCAP:
+                case VIDIOC_QUERYCAP:
                 {
-                        struct video_capability *v = arg;
+                        struct v4l2_capability *v = arg;
                         memset(v,0,sizeof(*v));
-                        v->type=VID_TYPE_TUNER;
-                        v->channels=1;
-                        v->audios=1;
-                        strcpy(v->name, "RadioTrack");
+                        strlcpy(v->driver, "radio-aimslab", sizeof (v->driver));
+                        strlcpy(v->card, "RadioTrack", sizeof (v->card));
+                        sprintf(v->bus_info,"ISA");
+                        v->version = RADIO_VERSION;
+                        v->capabilities = V4L2_CAP_TUNER;
+
                         return 0;
                 }
-                case VIDIOCGTUNER:
+                case VIDIOC_G_TUNER:
                 {
-                        struct video_tuner *v = arg;
-                        if(v->tuner)    /* Only 1 tuner */
+                        struct v4l2_tuner *v = arg;
+
+                        if (v->index > 0)
                                 return -EINVAL;
+
+                        memset(v,0,sizeof(*v));
+                        strcpy(v->name, "FM");
+                        v->type = V4L2_TUNER_RADIO;
+
                         v->rangelow=(87*16000);
                         v->rangehigh=(108*16000);
-                        v->flags=VIDEO_TUNER_LOW;
-                        v->mode=VIDEO_MODE_AUTO;
-                        strcpy(v->name, "FM");
+                        v->rxsubchans =V4L2_TUNER_SUB_MONO;
+                        v->capability=V4L2_TUNER_CAP_LOW;
+                        v->audmode = V4L2_TUNER_MODE_MONO;
                         v->signal=0xFFFF*rt_getsigstr(rt);
+
                         return 0;
                 }
-                case VIDIOCSTUNER:
+                case VIDIOC_S_TUNER:
                 {
-                        struct video_tuner *v = arg;
-                        if(v->tuner!=0)
+                        struct v4l2_tuner *v = arg;
+
+                        if (v->index > 0)
                                 return -EINVAL;
-                        /* Only 1 tuner so no setting needed ! */
+
                         return 0;
                 }
-                case VIDIOCGFREQ:
+                case VIDIOC_S_FREQUENCY:
                 {
-                        unsigned long *freq = arg;
-                        *freq = rt->curfreq;
+                        struct v4l2_frequency *f = arg;
+
+                        rt->curfreq = f->frequency;
+                        rt_setfreq(rt, rt->curfreq);
                         return 0;
                 }
-                case VIDIOCSFREQ:
+                case VIDIOC_G_FREQUENCY:
                 {
-                        unsigned long *freq = arg;
-                        rt->curfreq = *freq;
-                        rt_setfreq(rt, rt->curfreq);
+                        struct v4l2_frequency *f = arg;
+
+                        f->type = V4L2_TUNER_RADIO;
+                        f->frequency = rt->curfreq;
+
                         return 0;
                 }
-                case VIDIOCGAUDIO:
+                case VIDIOC_QUERYCTRL:
                 {
-                        struct video_audio *v = arg;
-                        memset(v,0, sizeof(*v));
-                        v->flags|=VIDEO_AUDIO_MUTABLE|VIDEO_AUDIO_VOLUME;
-                        v->volume=rt->curvol * 6554;
-                        v->step=6554;
-                        strcpy(v->name, "Radio");
-                        return 0;
+                        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 VIDIOCSAUDIO:
+                case VIDIOC_G_CTRL:
                 {
-                        struct video_audio *v = arg;
-                        if(v->audio)
-                                return -EINVAL;
-                        if(v->flags&VIDEO_AUDIO_MUTE)
-                                rt_mute(rt);
-                        else
-                                rt_setvol(rt,v->volume/6554);
-                        return 0;
+                        struct v4l2_control *ctrl= arg;
+
+                        switch (ctrl->id) {
+                                case V4L2_CID_AUDIO_MUTE:
+                                        ctrl->value=rt->muted;
+                                        return (0);
+                                case V4L2_CID_AUDIO_VOLUME:
+                                        ctrl->value=rt->curvol * 6554;
+                                        return (0);
+                        }
+                        return -EINVAL;
                 }
+                case VIDIOC_S_CTRL:
+                {
+                        struct v4l2_control *ctrl= arg;
+
+                        switch (ctrl->id) {
+                                case V4L2_CID_AUDIO_MUTE:
+                                        if (ctrl->value) {
+                                                rt_mute(rt);
+                                        } else {
+                                                rt_setvol(rt,rt->curvol);
+                                        }
+                                        return (0);
+                                case V4L2_CID_AUDIO_VOLUME:
+                                        rt_setvol(rt,ctrl->value);
+                                        return (0);
+                        }
+                        return -EINVAL;
+                }
+
                 default:
-                        return -ENOIOCTLCMD;
+                        return v4l_compat_translate_ioctl(inode,file,cmd,arg,
+                                                          rt_do_ioctl);
         }
 }