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V4L/DVB (4353): V4L2 conversion: radio-sf16fmi 

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>
This commit is contained in:
Mauro Carvalho Chehab 2006-08-08 09:10:02 -03:00
parent f8c559f8c0
commit a2ef73af4c
2 changed files with 101 additions and 58 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/media/radio/Kconfig
View File

@ -208,7 +208,7 @@ config RADIO_MIROPCM20_RDS
config RADIO_SF16FMI
tristate "SF16FMI Radio"
depends on ISA && VIDEO_V4L1
depends on ISA && VIDEO_V4L2
---help---
Choose Y here if you have one of these FM radio cards. If you
compile the driver into the kernel and your card is not PnP one, you

157
drivers/media/radio/radio-sf16fmi.c
View File

@ -13,6 +13,7 @@
* No volume control - only mute/unmute - you have to use line volume
* control on SB-part of SF16FMI
*
* Converted to V4L2 API by Mauro Carvalho Chehab <mchehab@infradead.org>
*/
#include <linux/kernel.h> /* __setup */
@ -20,13 +21,26 @@
#include <linux/init.h> /* Initdata */
#include <linux/ioport.h> /* request_region */
#include <linux/delay.h> /* udelay */
#include <linux/videodev.h> /* kernel radio structs */
#include <linux/videodev2.h> /* kernel radio structs */
#include <media/v4l2-common.h>
#include <linux/isapnp.h>
#include <asm/io.h> /* outb, outb_p */
#include <asm/uaccess.h> /* copy to/from user */
#include <linux/mutex.h>
#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,
}
};
struct fmi_device
{
int port;
@ -123,93 +137,122 @@ static int fmi_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));
strcpy(v->name, "SF16-FMx radio");
v->type=VID_TYPE_TUNER;
v->channels=1;
v->audios=1;
strlcpy(v->driver, "radio-sf16fmi", sizeof (v->driver));
strlcpy(v->card, "SF16-FMx 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;
int mult;
if(v->tuner) /* Only 1 tuner */
if (v->index > 0)
return -EINVAL;
memset(v,0,sizeof(*v));
strcpy(v->name, "FM");
mult = (fmi->flags & VIDEO_TUNER_LOW) ? 1 : 1000;
v->type = V4L2_TUNER_RADIO;
mult = (fmi->flags & V4L2_TUNER_CAP_LOW) ? 1 : 1000;
v->rangelow = RSF16_MINFREQ/mult;
v->rangehigh = RSF16_MAXFREQ/mult;
v->flags=fmi->flags;
v->mode=VIDEO_MODE_AUTO;
v->rxsubchans =V4L2_TUNER_SUB_MONO | V4L2_TUNER_MODE_STEREO;
v->capability=fmi->flags;
v->audmode = V4L2_TUNER_MODE_STEREO;
v->signal = fmi_getsigstr(fmi);
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;
fmi->flags = v->flags & VIDEO_TUNER_LOW;
/* Only 1 tuner so no setting needed ! */
return 0;
}
case VIDIOCGFREQ:
case VIDIOC_S_FREQUENCY:
{
unsigned long *freq = arg;
*freq = fmi->curfreq;
if (!(fmi->flags & VIDEO_TUNER_LOW))
*freq /= 1000;
return 0;
}
case VIDIOCSFREQ:
{
unsigned long *freq = arg;
if (!(fmi->flags & VIDEO_TUNER_LOW))
*freq *= 1000;
if (*freq < RSF16_MINFREQ || *freq > RSF16_MAXFREQ )
struct v4l2_frequency *f = arg;
if (!(fmi->flags & V4L2_TUNER_CAP_LOW))
f->frequency *= 1000;
if (f->frequency < RSF16_MINFREQ ||
f->frequency > RSF16_MAXFREQ )
return -EINVAL;
/*rounding in steps of 800 to match th freq
that will be used */
fmi->curfreq = (*freq/800)*800;
fmi->curfreq = (f->frequency/800)*800;
fmi_setfreq(fmi);
return 0;
}
case VIDIOCGAUDIO:
case VIDIOC_G_FREQUENCY:
{
struct video_audio *v = arg;
memset(v,0,sizeof(*v));
v->flags=( (!fmi->curvol)*VIDEO_AUDIO_MUTE | VIDEO_AUDIO_MUTABLE);
strcpy(v->name, "Radio");
v->mode=VIDEO_SOUND_STEREO;
struct v4l2_frequency *f = arg;
f->type = V4L2_TUNER_RADIO;
f->frequency = fmi->curfreq;
if (!(fmi->flags & V4L2_TUNER_CAP_LOW))
f->frequency /= 1000;
return 0;
}
case VIDIOCSAUDIO:
case VIDIOC_QUERYCTRL:
{
struct video_audio *v = arg;
if(v->audio)
return -EINVAL;
fmi->curvol= v->flags&VIDEO_AUDIO_MUTE ? 0 : 1;
fmi->curvol ?
fmi_unmute(fmi->port) : fmi_mute(fmi->port);
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 VIDIOCGUNIT:
case VIDIOC_G_CTRL:
{
struct video_unit *v = arg;
v->video=VIDEO_NO_UNIT;
v->vbi=VIDEO_NO_UNIT;
v->radio=dev->minor;
v->audio=0; /* How do we find out this??? */
v->teletext=VIDEO_NO_UNIT;
return 0;
struct v4l2_control *ctrl= arg;
switch (ctrl->id) {
case V4L2_CID_AUDIO_MUTE:
ctrl->value=fmi->curvol;
return (0);
}
return -EINVAL;
}
case VIDIOC_S_CTRL:
{
struct v4l2_control *ctrl= arg;
switch (ctrl->id) {
case V4L2_CID_AUDIO_MUTE:
{
if (ctrl->value)
fmi_mute(fmi->port);
else
fmi_unmute(fmi->port);
fmi->curvol=ctrl->value;
return (0);
}
}
return -EINVAL;
}
default:
return -ENOIOCTLCMD;
return v4l_compat_translate_ioctl(inode,file,cmd,arg,
fmi_do_ioctl);
}
}
@ -235,7 +278,7 @@ static struct video_device fmi_radio=
.owner = THIS_MODULE,
.name = "SF16FMx radio",
.type = VID_TYPE_TUNER,
.hardware = VID_HARDWARE_SF16MI,
.hardware = 0,
.fops = &fmi_fops,
};
@ -294,7 +337,7 @@ static int __init fmi_init(void)
fmi_unit.port = io;
fmi_unit.curvol = 0;
fmi_unit.curfreq = 0;
fmi_unit.flags = VIDEO_TUNER_LOW;
fmi_unit.flags = V4L2_TUNER_CAP_LOW;
fmi_radio.priv = &fmi_unit;
mutex_init(&lock);