/* 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>
+ * Converted to new API by Alan Cox <alan@lxorguk.ukuu.org.uk>
* Various bugfixes and enhancements by Russell Kroll <rkroll@exploits.org>
*
* History:
#include <asm/uaccess.h> /* copy to/from user */
#include <linux/videodev2.h> /* kernel radio structs */
#include <media/v4l2-common.h>
-#include <asm/semaphore.h> /* Lock for the I/O */
+#include <media/v4l2-ioctl.h>
#include <linux/version.h> /* for KERNEL_VERSION MACRO */
#define RADIO_VERSION KERNEL_VERSION(0,0,2)
struct rt_device
{
+ unsigned long in_use;
int port;
int curvol;
unsigned long curfreq;
static void sleep_delay(long n)
{
/* Sleep nicely for 'n' uS */
- int d=n/(1000000/HZ);
+ int d=n/msecs_to_jiffies(1000);
if(!d)
udelay(n);
else
}
};
-static int rt_do_ioctl(struct inode *inode, struct file *file,
- unsigned int cmd, void *arg)
+static int vidioc_querycap(struct file *file, void *priv,
+ struct v4l2_capability *v)
{
- struct video_device *dev = video_devdata(file);
- struct rt_device *rt=dev->priv;
+ 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;
+}
- switch(cmd)
- {
- case VIDIOC_QUERYCAP:
- {
- struct v4l2_capability *v = arg;
- memset(v,0,sizeof(*v));
- 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;
+static int vidioc_g_tuner(struct file *file, void *priv,
+ struct v4l2_tuner *v)
+{
+ struct rt_device *rt = video_drvdata(file);
- return 0;
- }
- case VIDIOC_G_TUNER:
- {
- struct v4l2_tuner *v = arg;
+ if (v->index > 0)
+ return -EINVAL;
- if (v->index > 0)
- return -EINVAL;
+ strcpy(v->name, "FM");
+ v->type = V4L2_TUNER_RADIO;
+ v->rangelow = (87*16000);
+ v->rangehigh = (108*16000);
+ 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;
+}
- memset(v,0,sizeof(*v));
- strcpy(v->name, "FM");
- v->type = V4L2_TUNER_RADIO;
+static int vidioc_s_tuner(struct file *file, void *priv,
+ struct v4l2_tuner *v)
+{
+ if (v->index > 0)
+ return -EINVAL;
+ return 0;
+}
- v->rangelow=(87*16000);
- v->rangehigh=(108*16000);
- v->rxsubchans =V4L2_TUNER_SUB_MONO;
- v->capability=V4L2_TUNER_CAP_LOW;
- v->audmode = V4L2_TUNER_MODE_MONO;
- v->signal=0xFFFF*rt_getsigstr(rt);
+static int vidioc_s_frequency(struct file *file, void *priv,
+ struct v4l2_frequency *f)
+{
+ struct rt_device *rt = video_drvdata(file);
- return 0;
- }
- case VIDIOC_S_TUNER:
- {
- struct v4l2_tuner *v = arg;
+ rt->curfreq = f->frequency;
+ rt_setfreq(rt, rt->curfreq);
+ return 0;
+}
- if (v->index > 0)
- return -EINVAL;
+static int vidioc_g_frequency(struct file *file, void *priv,
+ struct v4l2_frequency *f)
+{
+ struct rt_device *rt = video_drvdata(file);
- return 0;
- }
- case VIDIOC_S_FREQUENCY:
- {
- struct v4l2_frequency *f = arg;
+ f->type = V4L2_TUNER_RADIO;
+ f->frequency = rt->curfreq;
+ return 0;
+}
- rt->curfreq = f->frequency;
- rt_setfreq(rt, rt->curfreq);
+static int vidioc_queryctrl(struct file *file, void *priv,
+ struct v4l2_queryctrl *qc)
+{
+ 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;
}
- case VIDIOC_G_FREQUENCY:
- {
- struct v4l2_frequency *f = arg;
+ }
+ return -EINVAL;
+}
- f->type = V4L2_TUNER_RADIO;
- f->frequency = rt->curfreq;
+static int vidioc_g_ctrl(struct file *file, void *priv,
+ struct v4l2_control *ctrl)
+{
+ struct rt_device *rt = video_drvdata(file);
- return 0;
- }
- case VIDIOC_QUERYCTRL:
- {
- 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 VIDIOC_G_CTRL:
- {
- 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;
- }
+ 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;
+}
- default:
- return v4l_compat_translate_ioctl(inode,file,cmd,arg,
- rt_do_ioctl);
+static int vidioc_s_ctrl(struct file *file, void *priv,
+ struct v4l2_control *ctrl)
+{
+ struct rt_device *rt = video_drvdata(file);
+
+ 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;
+}
+
+static int vidioc_g_audio (struct file *file, void *priv,
+ struct v4l2_audio *a)
+{
+ if (a->index > 1)
+ return -EINVAL;
+
+ strcpy(a->name, "Radio");
+ a->capability = V4L2_AUDCAP_STEREO;
+ return 0;
+}
+
+static int vidioc_g_input(struct file *filp, void *priv, unsigned int *i)
+{
+ *i = 0;
+ return 0;
+}
+
+static int vidioc_s_input(struct file *filp, void *priv, unsigned int i)
+{
+ if (i != 0)
+ return -EINVAL;
+ return 0;
}
-static int rt_ioctl(struct inode *inode, struct file *file,
- unsigned int cmd, unsigned long arg)
+static int vidioc_s_audio(struct file *file, void *priv,
+ struct v4l2_audio *a)
{
- return video_usercopy(inode, file, cmd, arg, rt_do_ioctl);
+ if (a->index != 0)
+ return -EINVAL;
+ return 0;
}
static struct rt_device rtrack_unit;
-static const struct file_operations rtrack_fops = {
- .owner = THIS_MODULE,
- .open = video_exclusive_open,
- .release = video_exclusive_release,
- .ioctl = rt_ioctl,
- .compat_ioctl = v4l_compat_ioctl32,
- .llseek = no_llseek,
-};
+static int rtrack_exclusive_open(struct file *file)
+{
+ return test_and_set_bit(0, &rtrack_unit.in_use) ? -EBUSY : 0;
+}
-static struct video_device rtrack_radio=
+static int rtrack_exclusive_release(struct file *file)
{
+ clear_bit(0, &rtrack_unit.in_use);
+ return 0;
+}
+
+static const struct v4l2_file_operations rtrack_fops = {
.owner = THIS_MODULE,
+ .open = rtrack_exclusive_open,
+ .release = rtrack_exclusive_release,
+ .ioctl = video_ioctl2,
+};
+
+static const struct v4l2_ioctl_ops rtrack_ioctl_ops = {
+ .vidioc_querycap = vidioc_querycap,
+ .vidioc_g_tuner = vidioc_g_tuner,
+ .vidioc_s_tuner = vidioc_s_tuner,
+ .vidioc_g_audio = vidioc_g_audio,
+ .vidioc_s_audio = vidioc_s_audio,
+ .vidioc_g_input = vidioc_g_input,
+ .vidioc_s_input = vidioc_s_input,
+ .vidioc_g_frequency = vidioc_g_frequency,
+ .vidioc_s_frequency = vidioc_s_frequency,
+ .vidioc_queryctrl = vidioc_queryctrl,
+ .vidioc_g_ctrl = vidioc_g_ctrl,
+ .vidioc_s_ctrl = vidioc_s_ctrl,
+};
+
+static struct video_device rtrack_radio = {
.name = "RadioTrack radio",
- .type = VID_TYPE_TUNER,
- .hardware = 0,
.fops = &rtrack_fops,
+ .ioctl_ops = &rtrack_ioctl_ops,
+ .release = video_device_release_empty,
};
static int __init rtrack_init(void)
return -EBUSY;
}
- rtrack_radio.priv=&rtrack_unit;
+ video_set_drvdata(&rtrack_radio, &rtrack_unit);
- if(video_register_device(&rtrack_radio, VFL_TYPE_RADIO, radio_nr)==-1)
- {
+ if (video_register_device(&rtrack_radio, VFL_TYPE_RADIO, radio_nr) < 0) {
release_region(io, 2);
return -EINVAL;
}
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff