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V4L/DVB (4363): V4L2 conversion: radio-trust
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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>
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Mauro Carvalho Chehab committed Sep 26, 2006
1 parent 2acadef commit 982eddb
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Showing 2 changed files with 132 additions and 57 deletions.
2 changes: 1 addition & 1 deletion drivers/media/radio/Kconfig
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Original file line number Diff line number Diff line change
Expand Up @@ -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.
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187 changes: 131 additions & 56 deletions drivers/media/radio/radio-trust.c
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Original file line number Diff line number Diff line change
Expand Up @@ -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>
Expand All @@ -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
Expand Down Expand Up @@ -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);
}
}

Expand All @@ -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,
};

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