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V4L/DVB (10880): radio-aimslab: convert to v4l2_device.

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Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Hans Verkuil 2009-03-06 13:45:27 -03:00 committed by Mauro Carvalho Chehab
parent f9996c9562
commit 151c3f8252
1 changed files with 169 additions and 183 deletions
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352
drivers/media/radio/radio-aimslab.c
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@ -32,14 +32,16 @@
#include <linux/init.h> /* Initdata */ #include <linux/init.h> /* Initdata */
#include <linux/ioport.h> /* request_region */ #include <linux/ioport.h> /* request_region */
#include <linux/delay.h> /* udelay */ #include <linux/delay.h> /* udelay */
#include <asm/io.h> /* outb, outb_p */
#include <asm/uaccess.h> /* copy to/from user */
#include <linux/videodev2.h> /* kernel radio structs */ #include <linux/videodev2.h> /* kernel radio structs */
#include <media/v4l2-common.h> #include <linux/version.h> /* for KERNEL_VERSION MACRO */
#include <linux/io.h> /* outb, outb_p */
#include <linux/uaccess.h> /* copy to/from user */
#include <media/v4l2-device.h>
#include <media/v4l2-ioctl.h> #include <media/v4l2-ioctl.h>
#include <linux/version.h> /* for KERNEL_VERSION MACRO */ MODULE_AUTHOR("M.Kirkwood");
#define RADIO_VERSION KERNEL_VERSION(0,0,2) MODULE_DESCRIPTION("A driver for the RadioTrack/RadioReveal radio card.");
MODULE_LICENSE("GPL");
#ifndef CONFIG_RADIO_RTRACK_PORT #ifndef CONFIG_RADIO_RTRACK_PORT
#define CONFIG_RADIO_RTRACK_PORT -1 #define CONFIG_RADIO_RTRACK_PORT -1
@ -47,86 +49,95 @@
static int io = CONFIG_RADIO_RTRACK_PORT; static int io = CONFIG_RADIO_RTRACK_PORT;
static int radio_nr = -1; static int radio_nr = -1;
static struct mutex lock;
struct rt_device module_param(io, int, 0);
MODULE_PARM_DESC(io, "I/O address of the RadioTrack card (0x20f or 0x30f)");
module_param(radio_nr, int, 0);
#define RADIO_VERSION KERNEL_VERSION(0, 0, 2)
struct rtrack
{ {
unsigned long in_use; struct v4l2_device v4l2_dev;
struct video_device vdev;
int port; int port;
int curvol; int curvol;
unsigned long curfreq; unsigned long curfreq;
int muted; int muted;
int io;
struct mutex lock;
}; };
static struct rtrack rtrack_card;
/* local things */ /* local things */
static void sleep_delay(long n) static void sleep_delay(long n)
{ {
/* Sleep nicely for 'n' uS */ /* Sleep nicely for 'n' uS */
int d=n/msecs_to_jiffies(1000); int d = n / msecs_to_jiffies(1000);
if(!d) if (!d)
udelay(n); udelay(n);
else else
msleep(jiffies_to_msecs(d)); msleep(jiffies_to_msecs(d));
} }
static void rt_decvol(void) static void rt_decvol(struct rtrack *rt)
{ {
outb(0x58, io); /* volume down + sigstr + on */ outb(0x58, rt->io); /* volume down + sigstr + on */
sleep_delay(100000); sleep_delay(100000);
outb(0xd8, io); /* volume steady + sigstr + on */ outb(0xd8, rt->io); /* volume steady + sigstr + on */
} }
static void rt_incvol(void) static void rt_incvol(struct rtrack *rt)
{ {
outb(0x98, io); /* volume up + sigstr + on */ outb(0x98, rt->io); /* volume up + sigstr + on */
sleep_delay(100000); sleep_delay(100000);
outb(0xd8, io); /* volume steady + sigstr + on */ outb(0xd8, rt->io); /* volume steady + sigstr + on */
} }
static void rt_mute(struct rt_device *dev) static void rt_mute(struct rtrack *rt)
{ {
dev->muted = 1; rt->muted = 1;
mutex_lock(&lock); mutex_lock(&rt->lock);
outb(0xd0, io); /* volume steady, off */ outb(0xd0, rt->io); /* volume steady, off */
mutex_unlock(&lock); mutex_unlock(&rt->lock);
} }
static int rt_setvol(struct rt_device *dev, int vol) static int rt_setvol(struct rtrack *rt, int vol)
{ {
int i; int i;
mutex_lock(&lock); mutex_lock(&rt->lock);
if(vol == dev->curvol) { /* requested volume = current */ if (vol == rt->curvol) { /* requested volume = current */
if (dev->muted) { /* user is unmuting the card */ if (rt->muted) { /* user is unmuting the card */
dev->muted = 0; rt->muted = 0;
outb (0xd8, io); /* enable card */ outb(0xd8, rt->io); /* enable card */
} }
mutex_unlock(&lock); mutex_unlock(&rt->lock);
return 0; return 0;
} }
if(vol == 0) { /* volume = 0 means mute the card */ if (vol == 0) { /* volume = 0 means mute the card */
outb(0x48, io); /* volume down but still "on" */ outb(0x48, rt->io); /* volume down but still "on" */
sleep_delay(2000000); /* make sure it's totally down */ sleep_delay(2000000); /* make sure it's totally down */
outb(0xd0, io); /* volume steady, off */ outb(0xd0, rt->io); /* volume steady, off */
dev->curvol = 0; /* track the volume state! */ rt->curvol = 0; /* track the volume state! */
mutex_unlock(&lock); mutex_unlock(&rt->lock);
return 0; return 0;
} }
dev->muted = 0; rt->muted = 0;
if(vol > dev->curvol) if (vol > rt->curvol)
for(i = dev->curvol; i < vol; i++) for (i = rt->curvol; i < vol; i++)
rt_incvol(); rt_incvol(rt);
else else
for(i = dev->curvol; i > vol; i--) for (i = rt->curvol; i > vol; i--)
rt_decvol(); rt_decvol(rt);
dev->curvol = vol; rt->curvol = vol;
mutex_unlock(&lock); mutex_unlock(&rt->lock);
return 0; return 0;
} }
@ -135,155 +146,137 @@ static int rt_setvol(struct rt_device *dev, int vol)
* and bit 4 (+16) is to keep the signal strength meter enabled * and bit 4 (+16) is to keep the signal strength meter enabled
*/ */
static void send_0_byte(int port, struct rt_device *dev) static void send_0_byte(struct rtrack *rt)
{ {
if ((dev->curvol == 0) || (dev->muted)) { if (rt->curvol == 0 || rt->muted) {
outb_p(128+64+16+ 1, port); /* wr-enable + data low */ outb_p(128+64+16+ 1, rt->io); /* wr-enable + data low */
outb_p(128+64+16+2+1, port); /* clock */ outb_p(128+64+16+2+1, rt->io); /* clock */
} }
else { else {
outb_p(128+64+16+8+ 1, port); /* on + wr-enable + data low */ outb_p(128+64+16+8+ 1, rt->io); /* on + wr-enable + data low */
outb_p(128+64+16+8+2+1, port); /* clock */ outb_p(128+64+16+8+2+1, rt->io); /* clock */
} }
sleep_delay(1000); sleep_delay(1000);
} }
static void send_1_byte(int port, struct rt_device *dev) static void send_1_byte(struct rtrack *rt)
{ {
if ((dev->curvol == 0) || (dev->muted)) { if (rt->curvol == 0 || rt->muted) {
outb_p(128+64+16+4 +1, port); /* wr-enable+data high */ outb_p(128+64+16+4 +1, rt->io); /* wr-enable+data high */
outb_p(128+64+16+4+2+1, port); /* clock */ outb_p(128+64+16+4+2+1, rt->io); /* clock */
} }
else { else {
outb_p(128+64+16+8+4 +1, port); /* on+wr-enable+data high */ outb_p(128+64+16+8+4 +1, rt->io); /* on+wr-enable+data high */
outb_p(128+64+16+8+4+2+1, port); /* clock */ outb_p(128+64+16+8+4+2+1, rt->io); /* clock */
} }
sleep_delay(1000); sleep_delay(1000);
} }
static int rt_setfreq(struct rt_device *dev, unsigned long freq) static int rt_setfreq(struct rtrack *rt, unsigned long freq)
{ {
int i; int i;
/* adapted from radio-aztech.c */ mutex_lock(&rt->lock); /* Stop other ops interfering */
rt->curfreq = freq;
/* now uses VIDEO_TUNER_LOW for fine tuning */ /* now uses VIDEO_TUNER_LOW for fine tuning */
freq += 171200; /* Add 10.7 MHz IF */ freq += 171200; /* Add 10.7 MHz IF */
freq /= 800; /* Convert to 50 kHz units */ freq /= 800; /* Convert to 50 kHz units */
mutex_lock(&lock); /* Stop other ops interfering */ send_0_byte(rt); /* 0: LSB of frequency */
send_0_byte (io, dev); /* 0: LSB of frequency */
for (i = 0; i < 13; i++) /* : frequency bits (1-13) */ for (i = 0; i < 13; i++) /* : frequency bits (1-13) */
if (freq & (1 << i)) if (freq & (1 << i))
send_1_byte (io, dev); send_1_byte(rt);
else else
send_0_byte (io, dev); send_0_byte(rt);
send_0_byte (io, dev); /* 14: test bit - always 0 */ send_0_byte(rt); /* 14: test bit - always 0 */
send_0_byte (io, dev); /* 15: test bit - always 0 */ send_0_byte(rt); /* 15: test bit - always 0 */
send_0_byte (io, dev); /* 16: band data 0 - always 0 */ send_0_byte(rt); /* 16: band data 0 - always 0 */
send_0_byte (io, dev); /* 17: band data 1 - always 0 */ send_0_byte(rt); /* 17: band data 1 - always 0 */
send_0_byte (io, dev); /* 18: band data 2 - always 0 */ send_0_byte(rt); /* 18: band data 2 - always 0 */
send_0_byte (io, dev); /* 19: time base - always 0 */ send_0_byte(rt); /* 19: time base - always 0 */
send_0_byte (io, dev); /* 20: spacing (0 = 25 kHz) */ send_0_byte(rt); /* 20: spacing (0 = 25 kHz) */
send_1_byte (io, dev); /* 21: spacing (1 = 25 kHz) */ send_1_byte(rt); /* 21: spacing (1 = 25 kHz) */
send_0_byte (io, dev); /* 22: spacing (0 = 25 kHz) */ send_0_byte(rt); /* 22: spacing (0 = 25 kHz) */
send_1_byte (io, dev); /* 23: AM/FM (FM = 1, always) */ send_1_byte(rt); /* 23: AM/FM (FM = 1, always) */
if ((dev->curvol == 0) || (dev->muted)) if (rt->curvol == 0 || rt->muted)
outb (0xd0, io); /* volume steady + sigstr */ outb(0xd0, rt->io); /* volume steady + sigstr */
else else
outb (0xd8, io); /* volume steady + sigstr + on */ outb(0xd8, rt->io); /* volume steady + sigstr + on */
mutex_unlock(&lock); mutex_unlock(&rt->lock);
return 0; return 0;
} }
static int rt_getsigstr(struct rt_device *dev) static int rt_getsigstr(struct rtrack *rt)
{ {
if (inb(io) & 2) /* bit set = no signal present */ int sig = 1;
return 0;
return 1; /* signal present */
}
static struct v4l2_queryctrl radio_qctrl[] = { mutex_lock(&rt->lock);
{ if (inb(rt->io) & 2) /* bit set = no signal present */
.id = V4L2_CID_AUDIO_MUTE, sig = 0;
.name = "Mute", mutex_unlock(&rt->lock);
.minimum = 0, return sig;
.maximum = 1, }
.default_value = 1,
.type = V4L2_CTRL_TYPE_BOOLEAN,
},{
.id = V4L2_CID_AUDIO_VOLUME,
.name = "Volume",
.minimum = 0,
.maximum = 0xff,
.step = 1,
.default_value = 0xff,
.type = V4L2_CTRL_TYPE_INTEGER,
}
};
static int vidioc_querycap(struct file *file, void *priv, static int vidioc_querycap(struct file *file, void *priv,
struct v4l2_capability *v) struct v4l2_capability *v)
{ {
strlcpy(v->driver, "radio-aimslab", sizeof(v->driver)); strlcpy(v->driver, "radio-aimslab", sizeof(v->driver));
strlcpy(v->card, "RadioTrack", sizeof(v->card)); strlcpy(v->card, "RadioTrack", sizeof(v->card));
sprintf(v->bus_info, "ISA"); strlcpy(v->bus_info, "ISA", sizeof(v->bus_info));
v->version = RADIO_VERSION; v->version = RADIO_VERSION;
v->capabilities = V4L2_CAP_TUNER; v->capabilities = V4L2_CAP_TUNER | V4L2_CAP_RADIO;
return 0; return 0;
} }
static int vidioc_g_tuner(struct file *file, void *priv, static int vidioc_g_tuner(struct file *file, void *priv,
struct v4l2_tuner *v) struct v4l2_tuner *v)
{ {
struct rt_device *rt = video_drvdata(file); struct rtrack *rt = video_drvdata(file);
if (v->index > 0) if (v->index > 0)
return -EINVAL; return -EINVAL;
strcpy(v->name, "FM"); strlcpy(v->name, "FM", sizeof(v->name));
v->type = V4L2_TUNER_RADIO; v->type = V4L2_TUNER_RADIO;
v->rangelow = (87*16000); v->rangelow = 87 * 16000;
v->rangehigh = (108*16000); v->rangehigh = 108 * 16000;
v->rxsubchans = V4L2_TUNER_SUB_MONO; v->rxsubchans = V4L2_TUNER_SUB_MONO;
v->capability = V4L2_TUNER_CAP_LOW; v->capability = V4L2_TUNER_CAP_LOW;
v->audmode = V4L2_TUNER_MODE_MONO; v->audmode = V4L2_TUNER_MODE_MONO;
v->signal = 0xffff*rt_getsigstr(rt); v->signal = 0xffff * rt_getsigstr(rt);
return 0; return 0;
} }
static int vidioc_s_tuner(struct file *file, void *priv, static int vidioc_s_tuner(struct file *file, void *priv,
struct v4l2_tuner *v) struct v4l2_tuner *v)
{ {
if (v->index > 0) return v->index ? -EINVAL : 0;
return -EINVAL;
return 0;
} }
static int vidioc_s_frequency(struct file *file, void *priv, static int vidioc_s_frequency(struct file *file, void *priv,
struct v4l2_frequency *f) struct v4l2_frequency *f)
{ {
struct rt_device *rt = video_drvdata(file); struct rtrack *rt = video_drvdata(file);
rt->curfreq = f->frequency; rt_setfreq(rt, f->frequency);
rt_setfreq(rt, rt->curfreq);
return 0; return 0;
} }
static int vidioc_g_frequency(struct file *file, void *priv, static int vidioc_g_frequency(struct file *file, void *priv,
struct v4l2_frequency *f) struct v4l2_frequency *f)
{ {
struct rt_device *rt = video_drvdata(file); struct rtrack *rt = video_drvdata(file);
f->type = V4L2_TUNER_RADIO; f->type = V4L2_TUNER_RADIO;
f->frequency = rt->curfreq; f->frequency = rt->curfreq;
@ -293,14 +286,11 @@ static int vidioc_g_frequency(struct file *file, void *priv,
static int vidioc_queryctrl(struct file *file, void *priv, static int vidioc_queryctrl(struct file *file, void *priv,
struct v4l2_queryctrl *qc) struct v4l2_queryctrl *qc)
{ {
int i; switch (qc->id) {
case V4L2_CID_AUDIO_MUTE:
for (i = 0; i < ARRAY_SIZE(radio_qctrl); i++) { return v4l2_ctrl_query_fill(qc, 0, 1, 1, 1);
if (qc->id && qc->id == radio_qctrl[i].id) { case V4L2_CID_AUDIO_VOLUME:
memcpy(qc, &(radio_qctrl[i]), return v4l2_ctrl_query_fill(qc, 0, 0xff, 1, 0xff);
sizeof(*qc));
return 0;
}
} }
return -EINVAL; return -EINVAL;
} }
@ -308,14 +298,14 @@ static int vidioc_queryctrl(struct file *file, void *priv,
static int vidioc_g_ctrl(struct file *file, void *priv, static int vidioc_g_ctrl(struct file *file, void *priv,
struct v4l2_control *ctrl) struct v4l2_control *ctrl)
{ {
struct rt_device *rt = video_drvdata(file); struct rtrack *rt = video_drvdata(file);
switch (ctrl->id) { switch (ctrl->id) {
case V4L2_CID_AUDIO_MUTE: case V4L2_CID_AUDIO_MUTE:
ctrl->value = rt->muted; ctrl->value = rt->muted;
return 0; return 0;
case V4L2_CID_AUDIO_VOLUME: case V4L2_CID_AUDIO_VOLUME:
ctrl->value = rt->curvol * 6554; ctrl->value = rt->curvol;
return 0; return 0;
} }
return -EINVAL; return -EINVAL;
@ -324,33 +314,22 @@ static int vidioc_g_ctrl(struct file *file, void *priv,
static int vidioc_s_ctrl(struct file *file, void *priv, static int vidioc_s_ctrl(struct file *file, void *priv,
struct v4l2_control *ctrl) struct v4l2_control *ctrl)
{ {
struct rt_device *rt = video_drvdata(file); struct rtrack *rt = video_drvdata(file);
switch (ctrl->id) { switch (ctrl->id) {
case V4L2_CID_AUDIO_MUTE: case V4L2_CID_AUDIO_MUTE:
if (ctrl->value) if (ctrl->value)
rt_mute(rt); rt_mute(rt);
else else
rt_setvol(rt,rt->curvol); rt_setvol(rt, rt->curvol);
return 0; return 0;
case V4L2_CID_AUDIO_VOLUME: case V4L2_CID_AUDIO_VOLUME:
rt_setvol(rt,ctrl->value); rt_setvol(rt, ctrl->value);
return 0; return 0;
} }
return -EINVAL; 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) static int vidioc_g_input(struct file *filp, void *priv, unsigned int *i)
{ {
*i = 0; *i = 0;
@ -359,36 +338,38 @@ static int vidioc_g_input(struct file *filp, void *priv, unsigned int *i)
static int vidioc_s_input(struct file *filp, void *priv, unsigned int i) static int vidioc_s_input(struct file *filp, void *priv, unsigned int i)
{ {
if (i != 0) return i ? -EINVAL : 0;
return -EINVAL; }
static int vidioc_g_audio(struct file *file, void *priv,
struct v4l2_audio *a)
{
a->index = 0;
strlcpy(a->name, "Radio", sizeof(a->name));
a->capability = V4L2_AUDCAP_STEREO;
return 0; return 0;
} }
static int vidioc_s_audio(struct file *file, void *priv, static int vidioc_s_audio(struct file *file, void *priv,
struct v4l2_audio *a) struct v4l2_audio *a)
{ {
if (a->index != 0) return a->index ? -EINVAL : 0;
return -EINVAL; }
static int rtrack_open(struct file *file)
{
return 0; return 0;
} }
static struct rt_device rtrack_unit; static int rtrack_release(struct file *file)
static int rtrack_exclusive_open(struct file *file)
{ {
return test_and_set_bit(0, &rtrack_unit.in_use) ? -EBUSY : 0;
}
static int rtrack_exclusive_release(struct file *file)
{
clear_bit(0, &rtrack_unit.in_use);
return 0; return 0;
} }
static const struct v4l2_file_operations rtrack_fops = { static const struct v4l2_file_operations rtrack_fops = {
.owner = THIS_MODULE, .owner = THIS_MODULE,
.open = rtrack_exclusive_open, .open = rtrack_open,
.release = rtrack_exclusive_release, .release = rtrack_release,
.ioctl = video_ioctl2, .ioctl = video_ioctl2,
}; };
@ -407,64 +388,69 @@ static const struct v4l2_ioctl_ops rtrack_ioctl_ops = {
.vidioc_s_ctrl = vidioc_s_ctrl, .vidioc_s_ctrl = vidioc_s_ctrl,
}; };
static struct video_device rtrack_radio = {
.name = "RadioTrack radio",
.fops = &rtrack_fops,
.ioctl_ops = &rtrack_ioctl_ops,
.release = video_device_release_empty,
};
static int __init rtrack_init(void) static int __init rtrack_init(void)
{ {
if(io==-1) struct rtrack *rt = &rtrack_card;
{ struct v4l2_device *v4l2_dev = &rt->v4l2_dev;
printk(KERN_ERR "You must set an I/O address with io=0x???\n"); int res;
strlcpy(v4l2_dev->name, "rtrack", sizeof(v4l2_dev->name));
rt->io = io;
if (rt->io == -1) {
v4l2_err(v4l2_dev, "you must set an I/O address with io=0x???\n");
return -EINVAL; return -EINVAL;
} }
if (!request_region(io, 2, "rtrack")) if (!request_region(rt->io, 2, "rtrack")) {
{ v4l2_err(v4l2_dev, "port 0x%x already in use\n", rt->io);
printk(KERN_ERR "rtrack: port 0x%x already in use\n", io);
return -EBUSY; return -EBUSY;
} }
video_set_drvdata(&rtrack_radio, &rtrack_unit); res = v4l2_device_register(NULL, v4l2_dev);
if (res < 0) {
release_region(rt->io, 2);
v4l2_err(v4l2_dev, "could not register v4l2_device\n");
return res;
}
if (video_register_device(&rtrack_radio, VFL_TYPE_RADIO, radio_nr) < 0) { strlcpy(rt->vdev.name, v4l2_dev->name, sizeof(rt->vdev.name));
release_region(io, 2); rt->vdev.v4l2_dev = v4l2_dev;
rt->vdev.fops = &rtrack_fops;
rt->vdev.ioctl_ops = &rtrack_ioctl_ops;
rt->vdev.release = video_device_release_empty;
video_set_drvdata(&rt->vdev, rt);
if (video_register_device(&rt->vdev, VFL_TYPE_RADIO, radio_nr) < 0) {
v4l2_device_unregister(&rt->v4l2_dev);
release_region(rt->io, 2);
return -EINVAL; return -EINVAL;
} }
printk(KERN_INFO "AIMSlab RadioTrack/RadioReveal card driver.\n"); v4l2_info(v4l2_dev, "AIMSlab RadioTrack/RadioReveal card driver.\n");
/* Set up the I/O locking */ /* Set up the I/O locking */
mutex_init(&lock); mutex_init(&rt->lock);
/* mute card - prevents noisy bootups */ /* mute card - prevents noisy bootups */
/* this ensures that the volume is all the way down */ /* this ensures that the volume is all the way down */
outb(0x48, io); /* volume down but still "on" */ outb(0x48, rt->io); /* volume down but still "on" */
sleep_delay(2000000); /* make sure it's totally down */ sleep_delay(2000000); /* make sure it's totally down */
outb(0xc0, io); /* steady volume, mute card */ outb(0xc0, rt->io); /* steady volume, mute card */
rtrack_unit.curvol = 0;
return 0; return 0;
} }
MODULE_AUTHOR("M.Kirkwood"); static void __exit rtrack_exit(void)
MODULE_DESCRIPTION("A driver for the RadioTrack/RadioReveal radio card.");
MODULE_LICENSE("GPL");
module_param(io, int, 0);
MODULE_PARM_DESC(io, "I/O address of the RadioTrack card (0x20f or 0x30f)");
module_param(radio_nr, int, 0);
static void __exit cleanup_rtrack_module(void)
{ {
video_unregister_device(&rtrack_radio); struct rtrack *rt = &rtrack_card;
release_region(io,2);
video_unregister_device(&rt->vdev);
v4l2_device_unregister(&rt->v4l2_dev);
release_region(rt->io, 2);
} }
module_init(rtrack_init); module_init(rtrack_init);
module_exit(cleanup_rtrack_module); module_exit(rtrack_exit);