V4L/DVB (4363): V4L2 conversion: radio-trust

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, 132 insertions, 57 deletions

diff --git a/drivers/media/radio/Kconfig b/drivers/media/radio/Kconfig
index 1fe960c0f7e0..34d04b5b9988 100644
--- a/drivers/media/radio/Kconfig
+++ b/drivers/media/radio/Kconfig
@@ -268,7 +268,7 @@ config RADIO_TERRATEC_PORT
 
 config RADIO_TRUST
         tristate "Trust FM radio card"
-        depends on ISA && VIDEO_V4L1
+        depends on ISA && VIDEO_V4L2
         help
           This is a driver for the Trust FM radio cards. Say Y if you have
           such a card and want to use it under Linux.
diff --git a/drivers/media/radio/radio-trust.c b/drivers/media/radio/radio-trust.c
index 696fae8dace0..bb03ad5a2033 100644
--- a/drivers/media/radio/radio-trust.c
+++ b/drivers/media/radio/radio-trust.c
@@ -12,7 +12,7 @@
  * Scott McGrath    (smcgrath@twilight.vtc.vsc.edu)
  * William McGrath  (wmcgrath@twilight.vtc.vsc.edu)
  *
- * The basis for this code may be found at http://bigbang.vtc.vsc.edu/fmradio/
+ * Converted to V4L2 API by Mauro Carvalho Chehab <mchehab@infradead.org>
  */
 
 #include <stdarg.h>
@@ -21,9 +21,47 @@
 #include <linux/ioport.h>
 #include <asm/io.h>
 #include <asm/uaccess.h>
-#include <linux/videodev.h>
+#include <linux/videodev2.h>
 #include <media/v4l2-common.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          = 2048,
+                .default_value = 65535,
+                .type          = V4L2_CTRL_TYPE_INTEGER,
+        },{
+                .id            = V4L2_CID_AUDIO_BASS,
+                .name          = "Bass",
+                .minimum       = 0,
+                .maximum       = 65535,
+                .step          = 4370,
+                .default_value = 32768,
+                .type          = V4L2_CTRL_TYPE_INTEGER,
+        },{
+                .id            = V4L2_CID_AUDIO_TREBLE,
+                .name          = "Treble",
+                .minimum       = 0,
+                .maximum       = 65535,
+                .step          = 4370,
+                .default_value = 32768,
+                .type          = V4L2_CTRL_TYPE_INTEGER,
+        },
+};
+
 /* acceptable ports: 0x350 (JP3 shorted), 0x358 (JP3 open) */
 
 #ifndef CONFIG_RADIO_TRUST_PORT
@@ -159,88 +197,125 @@ static int tr_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, "Trust FM Radio");
+                        strlcpy(v->driver, "radio-trust", sizeof (v->driver));
+                        strlcpy(v->card, "Trust FM Radio", 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;
+                        struct v4l2_tuner *v = arg;
 
-                        if(v->tuner)    /* Only 1 tuner */
+                        if (v->index > 0)
                                 return -EINVAL;
 
-                        v->rangelow = 87500 * 16;
-                        v->rangehigh = 108000 * 16;
-                        v->flags = VIDEO_TUNER_LOW;
-                        v->mode = VIDEO_MODE_AUTO;
+                        memset(v,0,sizeof(*v));
+                        strcpy(v->name, "FM");
+                        v->type = V4L2_TUNER_RADIO;
 
-                        v->signal = tr_getsigstr();
+                        v->rangelow=(87.5*16000);
+                        v->rangehigh=(108*16000);
+                        v->rxsubchans =V4L2_TUNER_SUB_MONO|V4L2_TUNER_SUB_STEREO;
+                        v->capability=V4L2_TUNER_CAP_LOW;
                         if(tr_getstereo())
-                                v->flags |= VIDEO_TUNER_STEREO_ON;
-
-                        strcpy(v->name, "FM");
+                                v->audmode = V4L2_TUNER_MODE_STEREO;
+                        else
+                                v->audmode = V4L2_TUNER_MODE_MONO;
+                        v->signal=tr_getsigstr();
 
                         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;
+
                         return 0;
                 }
-                case VIDIOCGFREQ:
+                case VIDIOC_S_FREQUENCY:
                 {
-                        unsigned long *freq = arg;
-                        *freq = curfreq;
+                        struct v4l2_frequency *f = arg;
+
+                        curfreq = f->frequency;
+                        tr_setfreq(curfreq);
                         return 0;
                 }
-                case VIDIOCSFREQ:
+                case VIDIOC_G_FREQUENCY:
                 {
-                        unsigned long *freq = arg;
-                        tr_setfreq(*freq);
+                        struct v4l2_frequency *f = arg;
+
+                        f->type = V4L2_TUNER_RADIO;
+                        f->frequency = 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 |
-                                  VIDEO_AUDIO_BASS | VIDEO_AUDIO_TREBLE;
-                        v->mode = curstereo? VIDEO_SOUND_STEREO : VIDEO_SOUND_MONO;
-                        v->volume = curvol * 2048;
-                        v->step = 2048;
-                        v->bass = curbass * 4370;
-                        v->treble = curtreble * 4370;
-
-                        strcpy(v->name, "Trust FM 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;
-                        tr_setvol(v->volume);
-                        tr_setbass(v->bass);
-                        tr_settreble(v->treble);
-                        tr_setstereo(v->mode & VIDEO_SOUND_STEREO);
-                        tr_setmute(v->flags & VIDEO_AUDIO_MUTE);
-                        return 0;
+                        struct v4l2_control *ctrl= arg;
+
+                        switch (ctrl->id) {
+                                case V4L2_CID_AUDIO_MUTE:
+                                        ctrl->value=curmute;
+                                        return (0);
+                                case V4L2_CID_AUDIO_VOLUME:
+                                        ctrl->value= curvol * 2048;
+                                        return (0);
+                                case V4L2_CID_AUDIO_BASS:
+                                        ctrl->value= curbass * 4370;
+                                        return (0);
+                                case V4L2_CID_AUDIO_TREBLE:
+                                        ctrl->value= curtreble * 4370;
+                                        return (0);
+                        }
+                        return -EINVAL;
                 }
+                case VIDIOC_S_CTRL:
+                {
+                        struct v4l2_control *ctrl= arg;
+
+                        switch (ctrl->id) {
+                                case V4L2_CID_AUDIO_MUTE:
+                                        tr_setmute(ctrl->value);
+                                        return 0;
+                                case V4L2_CID_AUDIO_VOLUME:
+                                        tr_setvol(ctrl->value);
+                                        return 0;
+                                case V4L2_CID_AUDIO_BASS:
+                                        tr_setbass(ctrl->value);
+                                        return 0;
+                                case V4L2_CID_AUDIO_TREBLE:
+                                        tr_settreble(ctrl->value);
+                                        return (0);
+                        }
+                        return -EINVAL;
+                }
+
                 default:
-                        return -ENOIOCTLCMD;
+                        return v4l_compat_translate_ioctl(inode,file,cmd,arg,
+                                                          tr_do_ioctl);
         }
 }
 
@@ -264,7 +339,7 @@ static struct video_device trust_radio=
         .owner          = THIS_MODULE,
         .name           = "Trust FM Radio",
         .type           = VID_TYPE_TUNER,
-        .hardware       = VID_HARDWARE_TRUST,
+        .hardware       = 0,
         .fops           = &trust_fops,
 };