V4L/DVB (4350): V4L2 conversion: radio_gemtek-pci

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>

1 files changed, 110 insertions, 60 deletions

diff --git a/drivers/media/radio/radio-gemtek-pci.c b/drivers/media/radio/radio-gemtek-pci.c
index 4c82956390c1..ee19979e540c 100644
--- a/drivers/media/radio/radio-gemtek-pci.c
+++ b/drivers/media/radio/radio-gemtek-pci.c
@@ -34,6 +34,8 @@
  *
  *     TODO: multiple device support and portability were not tested
  *
+ *     Converted to V4L2 API by Mauro Carvalho Chehab <mchehab@infradead.org>
+ *
  ***************************************************************************
  */
 
@@ -42,10 +44,32 @@
 #include <linux/module.h>
 #include <linux/init.h>
 #include <linux/pci.h>
-#include <linux/videodev.h>
+#include <linux/videodev2.h>
 #include <media/v4l2-common.h>
 #include <linux/errno.h>
 
+#include <linux/version.h>      /* for KERNEL_VERSION MACRO     */
+#define RADIO_VERSION KERNEL_VERSION(0,0,2)
+
+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       = 65535,
+                .step          = 65535,
+                .default_value = 0xff,
+                .type          = V4L2_CTRL_TYPE_INTEGER,
+        }
+};
+
 #include <asm/io.h>
 #include <asm/uaccess.h>
 
@@ -183,91 +207,117 @@ static int gemtek_pci_do_ioctl(struct inode *inode, struct file *file,
         struct gemtek_pci_card *card = dev->priv;
 
         switch ( cmd ) {
-                case VIDIOCGCAP:
+                case VIDIOC_QUERYCAP:
                 {
-                        struct video_capability *c = arg;
+                        struct v4l2_capability *v = arg;
+                        memset(v,0,sizeof(*v));
+                        strlcpy(v->driver, "radio-gemtek-pci", sizeof (v->driver));
+                        strlcpy(v->card, "GemTek PCI Radio", sizeof (v->card));
+                        sprintf(v->bus_info,"ISA");
+                        v->version = RADIO_VERSION;
+                        v->capabilities = V4L2_CAP_TUNER;
 
-                        memset(c,0,sizeof(*c));
-                        c->type = VID_TYPE_TUNER;
-                        c->channels = 1;
-                        c->audios = 1;
-                        strcpy( c->name, "Gemtek PCI Radio" );
                         return 0;
                 }
-
-                case VIDIOCGTUNER:
+                case VIDIOC_G_TUNER:
                 {
-                        struct video_tuner *t = arg;
+                        struct v4l2_tuner *v = arg;
 
-                        if ( t->tuner )
+                        if (v->index > 0)
                                 return -EINVAL;
 
-                        t->rangelow = GEMTEK_PCI_RANGE_LOW;
-                        t->rangehigh = GEMTEK_PCI_RANGE_HIGH;
-                        t->flags = VIDEO_TUNER_LOW;
-                        t->mode = VIDEO_MODE_AUTO;
-                        t->signal = 0xFFFF * gemtek_pci_getsignal( card );
-                        strcpy( t->name, "FM" );
+                        memset(v,0,sizeof(*v));
+                        strcpy(v->name, "FM");
+                        v->type = V4L2_TUNER_RADIO;
+
+                        v->rangelow = GEMTEK_PCI_RANGE_LOW;
+                        v->rangehigh = GEMTEK_PCI_RANGE_HIGH;
+                        v->rxsubchans =V4L2_TUNER_SUB_MONO;
+                        v->capability=V4L2_TUNER_CAP_LOW;
+                        v->audmode = V4L2_TUNER_MODE_MONO;
+                        v->signal=0xFFFF*gemtek_pci_getsignal( card );
+
                         return 0;
                 }
-
-                case VIDIOCSTUNER:
+                case VIDIOC_S_TUNER:
                 {
-                        struct video_tuner *t = arg;
-                        if ( t->tuner )
+                        struct v4l2_tuner *v = arg;
+
+                        if (v->index > 0)
                                 return -EINVAL;
-                        return 0;
-                }
 
-                case VIDIOCGFREQ:
-                {
-                        unsigned long *freq = arg;
-                        *freq = card->current_frequency;
                         return 0;
                 }
-                case VIDIOCSFREQ:
+                case VIDIOC_S_FREQUENCY:
                 {
-                        unsigned long *freq = arg;
+                        struct v4l2_frequency *f = arg;
 
-                        if ( (*freq < GEMTEK_PCI_RANGE_LOW) ||
-                             (*freq > GEMTEK_PCI_RANGE_HIGH) )
+                        if ( (f->frequency < GEMTEK_PCI_RANGE_LOW) ||
+                             (f->frequency > GEMTEK_PCI_RANGE_HIGH) )
                                 return -EINVAL;
 
-                        gemtek_pci_setfrequency( card, *freq );
-                        card->current_frequency = *freq;
-                        card->mute = FALSE;
 
+                        gemtek_pci_setfrequency( card, f->frequency );
+                        card->current_frequency = f->frequency;
+                        card->mute = FALSE;
                         return 0;
                 }
-
-                case VIDIOCGAUDIO:
+                case VIDIOC_QUERYCTRL:
                 {
-                        struct video_audio *a = arg;
-
-                        memset( a, 0, sizeof( *a ) );
-                        a->flags |= VIDEO_AUDIO_MUTABLE;
-                        a->volume = 1;
-                        a->step = 65535;
-                        strcpy( a->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 *a = arg;
-
-                        if ( a->audio )
-                                return -EINVAL;
-
-                        if ( a->flags & VIDEO_AUDIO_MUTE )
-                                gemtek_pci_mute( card );
-                        else
-                                gemtek_pci_unmute( card );
-                        return 0;
+                        struct v4l2_control *ctrl= arg;
+
+                        switch (ctrl->id) {
+                                case V4L2_CID_AUDIO_MUTE:
+                                        ctrl->value=card->mute;
+                                        return (0);
+                                case V4L2_CID_AUDIO_VOLUME:
+                                        if (card->mute)
+                                                ctrl->value=0;
+                                        else
+                                                ctrl->value=65535;
+                                        return (0);
+                        }
+                        return -EINVAL;
+                }
+                case VIDIOC_S_CTRL:
+                {
+                        struct v4l2_control *ctrl= arg;
+
+                        switch (ctrl->id) {
+                                case V4L2_CID_AUDIO_MUTE:
+                                        if (ctrl->value) {
+                                                gemtek_pci_mute(card);
+                                        } else {
+                                                gemtek_pci_unmute(card);
+                                        }
+                                        return (0);
+                                case V4L2_CID_AUDIO_VOLUME:
+                                        if (ctrl->value) {
+                                                gemtek_pci_unmute(card);
+                                        } else {
+                                                gemtek_pci_mute(card);
+                                        }
+                                        return (0);
+                        }
+                        return -EINVAL;
                 }
-
                 default:
-                        return -ENOIOCTLCMD;
+                        return v4l_compat_translate_ioctl(inode,file,cmd,arg,
+                                                          gemtek_do_ioctl);
         }
 }
 
@@ -309,7 +359,7 @@ static struct video_device vdev_template = {
         .owner         = THIS_MODULE,
         .name          = "Gemtek PCI Radio",
         .type          = VID_TYPE_TUNER,
-        .hardware      = VID_HARDWARE_GEMTEK,
+        .hardware      = 0,
         .fops          = &gemtek_pci_fops,
 };