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Commit c32a9d71 authored by Hans Verkuil's avatar Hans Verkuil Committed by Mauro Carvalho Chehab
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V4L/DVB (10889): radio-sf16fmr2: convert to v4l2_device. 

Signed-off-by: default avatarHans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: default avatarMauro Carvalho Chehab <mchehab@redhat.com>
parent c41269fd
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Showing with 175 additions and 197 deletions
drivers/media/radio/radio-sf16fmr2.c
View file @ c32a9d71
...@@ -18,40 +18,29 @@ ...@@ -18,40 +18,29 @@
#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 <media/v4l2-ioctl.h>
#include <linux/mutex.h> #include <linux/mutex.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>
static struct mutex lock; MODULE_AUTHOR("Ziglio Frediano, freddy77@angelfire.com");
MODULE_DESCRIPTION("A driver for the SF16FMR2 radio.");
MODULE_LICENSE("GPL");
static int io = 0x384;
static int radio_nr = -1;
module_param(io, int, 0);
MODULE_PARM_DESC(io, "I/O address of the SF16FMR2 card (should be 0x384, if do not work try 0x284)");
module_param(radio_nr, int, 0);
#include <linux/version.h> /* for KERNEL_VERSION MACRO */
#define RADIO_VERSION KERNEL_VERSION(0,0,2) #define RADIO_VERSION KERNEL_VERSION(0,0,2)
#define AUD_VOL_INDEX 1 #define AUD_VOL_INDEX 1
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,
},
[AUD_VOL_INDEX] = {
.id = V4L2_CID_AUDIO_VOLUME,
.name = "Volume",
.minimum = 0,
.maximum = 15,
.step = 1,
.default_value = 0,
.type = V4L2_CTRL_TYPE_INTEGER,
}
};
#undef DEBUG #undef DEBUG
//#define DEBUG 1 //#define DEBUG 1
...@@ -62,156 +51,160 @@ static struct v4l2_queryctrl radio_qctrl[] = { ...@@ -62,156 +51,160 @@ static struct v4l2_queryctrl radio_qctrl[] = {
#endif #endif
/* this should be static vars for module size */ /* this should be static vars for module size */
struct fmr2_device struct fmr2
{ {
unsigned long in_use; struct v4l2_device v4l2_dev;
int port; struct video_device vdev;
struct mutex lock;
int io;
int curvol; /* 0-15 */ int curvol; /* 0-15 */
int mute; int mute;
int stereo; /* card is producing stereo audio */ int stereo; /* card is producing stereo audio */
unsigned long curfreq; /* freq in kHz */ unsigned long curfreq; /* freq in kHz */
int card_type; int card_type;
__u32 flags; u32 flags;
}; };
static int io = 0x384; static struct fmr2 fmr2_card;
static int radio_nr = -1;
/* hw precision is 12.5 kHz /* hw precision is 12.5 kHz
* It is only useful to give freq in intervall of 200 (=0.0125Mhz), * It is only useful to give freq in intervall of 200 (=0.0125Mhz),
* other bits will be truncated * other bits will be truncated
*/ */
#define RSF16_ENCODE(x) ((x)/200+856) #define RSF16_ENCODE(x) ((x) / 200 + 856)
#define RSF16_MINFREQ 87*16000 #define RSF16_MINFREQ (87 * 16000)
#define RSF16_MAXFREQ 108*16000 #define RSF16_MAXFREQ (108 * 16000)
static inline void wait(int n,int port) static inline void wait(int n, int io)
{ {
for (;n;--n) inb(port); for (; n; --n)
inb(io);
} }
static void outbits(int bits, unsigned int data, int nWait, int port) static void outbits(int bits, unsigned int data, int nWait, int io)
{ {
int bit; int bit;
for(;--bits>=0;) {
bit = (data>>bits) & 1; for (; --bits >= 0;) {
outb(bit,port); bit = (data >> bits) & 1;
wait(nWait,port); outb(bit, io);
outb(bit|2,port); wait(nWait, io);
wait(nWait,port); outb(bit | 2, io);
outb(bit,port); wait(nWait, io);
wait(nWait,port); outb(bit, io);
wait(nWait, io);
} }
} }
static inline void fmr2_mute(int port) static inline void fmr2_mute(int io)
{ {
outb(0x00, port); outb(0x00, io);
wait(4,port); wait(4, io);
} }
static inline void fmr2_unmute(int port) static inline void fmr2_unmute(int io)
{ {
outb(0x04, port); outb(0x04, io);
wait(4,port); wait(4, io);
} }
static inline int fmr2_stereo_mode(int port) static inline int fmr2_stereo_mode(int io)
{ {
int n = inb(port); int n = inb(io);
outb(6,port);
inb(port); outb(6, io);
n = ((n>>3)&1)^1; inb(io);
n = ((n >> 3) & 1) ^ 1;
debug_print((KERN_DEBUG "stereo: %d\n", n)); debug_print((KERN_DEBUG "stereo: %d\n", n));
return n; return n;
} }
static int fmr2_product_info(struct fmr2_device *dev) static int fmr2_product_info(struct fmr2 *dev)
{ {
int n = inb(dev->port); int n = inb(dev->io);
n &= 0xC1; n &= 0xC1;
if (n == 0) if (n == 0) {
{
/* this should support volume set */ /* this should support volume set */
dev->card_type = 12; dev->card_type = 12;
return 0; return 0;
} }
/* not volume (mine is 11) */ /* not volume (mine is 11) */
dev->card_type = (n==128)?11:0; dev->card_type = (n == 128) ? 11 : 0;
return n; return n;
} }
static inline int fmr2_getsigstr(struct fmr2_device *dev) static inline int fmr2_getsigstr(struct fmr2 *dev)
{ {
/* !!! work only if scanning freq */ /* !!! works only if scanning freq */
int port = dev->port, res = 0xffff; int res = 0xffff;
outb(5,port);
wait(4,port); outb(5, dev->io);
if (!(inb(port)&1)) res = 0; wait(4, dev->io);
if (!(inb(dev->io) & 1))
res = 0;
debug_print((KERN_DEBUG "signal: %d\n", res)); debug_print((KERN_DEBUG "signal: %d\n", res));
return res; return res;
} }
/* set frequency and unmute card */ /* set frequency and unmute card */
static int fmr2_setfreq(struct fmr2_device *dev) static int fmr2_setfreq(struct fmr2 *dev)
{ {
int port = dev->port;
unsigned long freq = dev->curfreq; unsigned long freq = dev->curfreq;
fmr2_mute(port); fmr2_mute(dev->io);
/* 0x42 for mono output /* 0x42 for mono output
* 0x102 forward scanning * 0x102 forward scanning
* 0x182 scansione avanti * 0x182 scansione avanti
*/ */
outbits(9,0x2,3,port); outbits(9, 0x2, 3, dev->io);
outbits(16,RSF16_ENCODE(freq),2,port); outbits(16, RSF16_ENCODE(freq), 2, dev->io);
fmr2_unmute(port); fmr2_unmute(dev->io);
/* wait 0.11 sec */ /* wait 0.11 sec */
msleep(110); msleep(110);
/* NOTE if mute this stop radio /* NOTE if mute this stop radio
you must set freq on unmute */ you must set freq on unmute */
dev->stereo = fmr2_stereo_mode(port); dev->stereo = fmr2_stereo_mode(dev->io);
return 0; return 0;
} }
/* !!! not tested, in my card this does't work !!! */ /* !!! not tested, in my card this does't work !!! */
static int fmr2_setvolume(struct fmr2_device *dev) static int fmr2_setvolume(struct fmr2 *dev)
{ {
int vol[16] = { 0x021, 0x084, 0x090, 0x104, int vol[16] = { 0x021, 0x084, 0x090, 0x104,
0x110, 0x204, 0x210, 0x402, 0x110, 0x204, 0x210, 0x402,
0x404, 0x408, 0x410, 0x801, 0x404, 0x408, 0x410, 0x801,
0x802, 0x804, 0x808, 0x810 }; 0x802, 0x804, 0x808, 0x810 };
int i, a, port = dev->port; int i, a;
int n = vol[dev->curvol & 0x0f]; int n = vol[dev->curvol & 0x0f];
if (dev->card_type != 11) if (dev->card_type != 11)
return 1; return 1;
for (i = 12; --i >= 0; ) { for (i = 12; --i >= 0; ) {
a = ((n >> i) & 1) << 6; /* if (a=0) a= 0; else a= 0x40; */ a = ((n >> i) & 1) << 6; /* if (a==0) a = 0; else a = 0x40; */
outb(a | 4, port); outb(a | 4, dev->io);
wait(4, port); wait(4, dev->io);
outb(a | 0x24, port); outb(a | 0x24, dev->io);
wait(4, port); wait(4, dev->io);
outb(a | 4, port); outb(a | 4, dev->io);
wait(4, port); wait(4, dev->io);
} }
for (i = 6; --i >= 0; ) { for (i = 6; --i >= 0; ) {
a = ((0x18 >> i) & 1) << 6; a = ((0x18 >> i) & 1) << 6;
outb(a | 4, port); outb(a | 4, dev->io);
wait(4,port); wait(4, dev->io);
outb(a | 0x24, port); outb(a | 0x24, dev->io);
wait(4,port); wait(4, dev->io);
outb(a|4, port); outb(a | 4, dev->io);
wait(4,port); wait(4, dev->io);
} }
wait(4, port); wait(4, dev->io);
outb(0x14, port); outb(0x14, dev->io);
return 0; return 0;
} }
...@@ -220,9 +213,9 @@ static int vidioc_querycap(struct file *file, void *priv, ...@@ -220,9 +213,9 @@ static int vidioc_querycap(struct file *file, void *priv,
{ {
strlcpy(v->driver, "radio-sf16fmr2", sizeof(v->driver)); strlcpy(v->driver, "radio-sf16fmr2", sizeof(v->driver));
strlcpy(v->card, "SF16-FMR2 radio", sizeof(v->card)); strlcpy(v->card, "SF16-FMR2 radio", 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;
} }
...@@ -230,54 +223,52 @@ static int vidioc_g_tuner(struct file *file, void *priv, ...@@ -230,54 +223,52 @@ static int vidioc_g_tuner(struct file *file, void *priv,
struct v4l2_tuner *v) struct v4l2_tuner *v)
{ {
int mult; int mult;
struct fmr2_device *fmr2 = video_drvdata(file); struct fmr2 *fmr2 = 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;
mult = (fmr2->flags & V4L2_TUNER_CAP_LOW) ? 1 : 1000; mult = (fmr2->flags & V4L2_TUNER_CAP_LOW) ? 1 : 1000;
v->rangelow = RSF16_MINFREQ/mult; v->rangelow = RSF16_MINFREQ / mult;
v->rangehigh = RSF16_MAXFREQ/mult; v->rangehigh = RSF16_MAXFREQ / mult;
v->rxsubchans = V4L2_TUNER_SUB_MONO | V4L2_TUNER_MODE_STEREO; v->rxsubchans = V4L2_TUNER_SUB_MONO | V4L2_TUNER_MODE_STEREO;
v->capability = fmr2->flags&V4L2_TUNER_CAP_LOW; v->capability = fmr2->flags&V4L2_TUNER_CAP_LOW;
v->audmode = fmr2->stereo ? V4L2_TUNER_MODE_STEREO: v->audmode = fmr2->stereo ? V4L2_TUNER_MODE_STEREO:
V4L2_TUNER_MODE_MONO; V4L2_TUNER_MODE_MONO;
mutex_lock(&lock); mutex_lock(&fmr2->lock);
v->signal = fmr2_getsigstr(fmr2); v->signal = fmr2_getsigstr(fmr2);
mutex_unlock(&lock); mutex_unlock(&fmr2->lock);
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 fmr2_device *fmr2 = video_drvdata(file); struct fmr2 *fmr2 = video_drvdata(file);
if (!(fmr2->flags & V4L2_TUNER_CAP_LOW)) if (!(fmr2->flags & V4L2_TUNER_CAP_LOW))
f->frequency *= 1000; f->frequency *= 1000;
if (f->frequency < RSF16_MINFREQ || if (f->frequency < RSF16_MINFREQ ||
f->frequency > RSF16_MAXFREQ ) f->frequency > RSF16_MAXFREQ)
return -EINVAL; return -EINVAL;
/*rounding in steps of 200 to match th freq /* rounding in steps of 200 to match the freq
that will be used */ that will be used */
fmr2->curfreq = (f->frequency/200)*200; fmr2->curfreq = (f->frequency / 200) * 200;
/* set card freq (if not muted) */ /* set card freq (if not muted) */
if (fmr2->curvol && !fmr2->mute) { if (fmr2->curvol && !fmr2->mute) {
mutex_lock(&lock); mutex_lock(&fmr2->lock);
fmr2_setfreq(fmr2); fmr2_setfreq(fmr2);
mutex_unlock(&lock); mutex_unlock(&fmr2->lock);
} }
return 0; return 0;
} }
...@@ -285,7 +276,7 @@ static int vidioc_s_frequency(struct file *file, void *priv, ...@@ -285,7 +276,7 @@ static int vidioc_s_frequency(struct file *file, void *priv,
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 fmr2_device *fmr2 = video_drvdata(file); struct fmr2 *fmr2 = video_drvdata(file);
f->type = V4L2_TUNER_RADIO; f->type = V4L2_TUNER_RADIO;
f->frequency = fmr2->curfreq; f->frequency = fmr2->curfreq;
...@@ -297,13 +288,16 @@ static int vidioc_g_frequency(struct file *file, void *priv, ...@@ -297,13 +288,16 @@ 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; struct fmr2 *fmr2 = video_drvdata(file);
for (i = 0; i < ARRAY_SIZE(radio_qctrl); i++) { switch (qc->id) {
if (qc->id && qc->id == radio_qctrl[i].id) { case V4L2_CID_AUDIO_MUTE:
memcpy(qc, &radio_qctrl[i], sizeof(*qc)); return v4l2_ctrl_query_fill(qc, 0, 1, 1, 1);
return 0; case V4L2_CID_AUDIO_VOLUME:
} /* Only card_type == 11 implements volume */
if (fmr2->card_type == 11)
return v4l2_ctrl_query_fill(qc, 0, 15, 1, 0);
return v4l2_ctrl_query_fill(qc, 0, 1, 1, 0);
} }
return -EINVAL; return -EINVAL;
} }
...@@ -311,7 +305,7 @@ static int vidioc_queryctrl(struct file *file, void *priv, ...@@ -311,7 +305,7 @@ 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 fmr2_device *fmr2 = video_drvdata(file); struct fmr2 *fmr2 = video_drvdata(file);
switch (ctrl->id) { switch (ctrl->id) {
case V4L2_CID_AUDIO_MUTE: case V4L2_CID_AUDIO_MUTE:
...@@ -327,18 +321,14 @@ static int vidioc_g_ctrl(struct file *file, void *priv, ...@@ -327,18 +321,14 @@ 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 fmr2_device *fmr2 = video_drvdata(file); struct fmr2 *fmr2 = video_drvdata(file);
switch (ctrl->id) { switch (ctrl->id) {
case V4L2_CID_AUDIO_MUTE: case V4L2_CID_AUDIO_MUTE:
fmr2->mute = ctrl->value; fmr2->mute = ctrl->value;
break; break;
case V4L2_CID_AUDIO_VOLUME: case V4L2_CID_AUDIO_VOLUME:
if (ctrl->value > radio_qctrl[AUD_VOL_INDEX].maximum)
fmr2->curvol = radio_qctrl[AUD_VOL_INDEX].maximum;
else
fmr2->curvol = ctrl->value; fmr2->curvol = ctrl->value;
break; break;
default: default:
return -EINVAL; return -EINVAL;
...@@ -351,25 +341,14 @@ static int vidioc_s_ctrl(struct file *file, void *priv, ...@@ -351,25 +341,14 @@ static int vidioc_s_ctrl(struct file *file, void *priv,
printk(KERN_DEBUG "mute\n"); printk(KERN_DEBUG "mute\n");
#endif #endif
mutex_lock(&lock); mutex_lock(&fmr2->lock);
if (fmr2->curvol && !fmr2->mute) { if (fmr2->curvol && !fmr2->mute) {
fmr2_setvolume(fmr2); fmr2_setvolume(fmr2);
/* Set frequency and unmute card */ /* Set frequency and unmute card */
fmr2_setfreq(fmr2); fmr2_setfreq(fmr2);
} else } else
fmr2_mute(fmr2->port); fmr2_mute(fmr2->io);
mutex_unlock(&lock); mutex_unlock(&fmr2->lock);
return 0;
}
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; return 0;
} }
...@@ -381,36 +360,38 @@ static int vidioc_g_input(struct file *filp, void *priv, unsigned int *i) ...@@ -381,36 +360,38 @@ 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;
return 0;
} }
static int vidioc_s_audio(struct file *file, void *priv, static int vidioc_g_audio(struct file *file, void *priv,
struct v4l2_audio *a) struct v4l2_audio *a)
{ {
if (a->index != 0) a->index = 0;
return -EINVAL; strlcpy(a->name, "Radio", sizeof(a->name));
a->capability = V4L2_AUDCAP_STEREO;
return 0; return 0;
} }
static struct fmr2_device fmr2_unit; static int vidioc_s_audio(struct file *file, void *priv,
struct v4l2_audio *a)
{
return a->index ? -EINVAL : 0;
}
static int fmr2_exclusive_open(struct file *file) static int fmr2_open(struct file *file)
{ {
return test_and_set_bit(0, &fmr2_unit.in_use) ? -EBUSY : 0; return 0;
} }
static int fmr2_exclusive_release(struct file *file) static int fmr2_release(struct file *file)
{ {
clear_bit(0, &fmr2_unit.in_use);
return 0; return 0;
} }
static const struct v4l2_file_operations fmr2_fops = { static const struct v4l2_file_operations fmr2_fops = {
.owner = THIS_MODULE, .owner = THIS_MODULE,
.open = fmr2_exclusive_open, .open = fmr2_open,
.release = fmr2_exclusive_release, .release = fmr2_release,
.ioctl = video_ioctl2, .ioctl = video_ioctl2,
}; };
...@@ -429,67 +410,64 @@ static const struct v4l2_ioctl_ops fmr2_ioctl_ops = { ...@@ -429,67 +410,64 @@ static const struct v4l2_ioctl_ops fmr2_ioctl_ops = {
.vidioc_s_ctrl = vidioc_s_ctrl, .vidioc_s_ctrl = vidioc_s_ctrl,
}; };
static struct video_device fmr2_radio = {
.name = "SF16FMR2 radio",
.fops = &fmr2_fops,
.ioctl_ops = &fmr2_ioctl_ops,
.release = video_device_release_empty,
};
static int __init fmr2_init(void) static int __init fmr2_init(void)
{ {
fmr2_unit.port = io; struct fmr2 *fmr2 = &fmr2_card;
fmr2_unit.curvol = 0; struct v4l2_device *v4l2_dev = &fmr2->v4l2_dev;
fmr2_unit.mute = 0; int res;
fmr2_unit.curfreq = 0;
fmr2_unit.stereo = 1; strlcpy(v4l2_dev->name, "sf16fmr2", sizeof(v4l2_dev->name));
fmr2_unit.flags = V4L2_TUNER_CAP_LOW; fmr2->io = io;
fmr2_unit.card_type = 0; fmr2->stereo = 1;
video_set_drvdata(&fmr2_radio, &fmr2_unit); fmr2->flags = V4L2_TUNER_CAP_LOW;
mutex_init(&fmr2->lock);
mutex_init(&lock);
if (!request_region(fmr2->io, 2, "sf16fmr2")) {
if (!request_region(io, 2, "sf16fmr2")) { v4l2_err(v4l2_dev, "request_region failed!\n");
printk(KERN_ERR "radio-sf16fmr2: request_region failed!\n");
return -EBUSY; return -EBUSY;
} }
if (video_register_device(&fmr2_radio, VFL_TYPE_RADIO, radio_nr) < 0) { res = v4l2_device_register(NULL, v4l2_dev);
release_region(io, 2); if (res < 0) {
return -EINVAL; release_region(fmr2->io, 2);
v4l2_err(v4l2_dev, "Could not register v4l2_device\n");
return res;
} }
printk(KERN_INFO "SF16FMR2 radio card driver at 0x%x.\n", io); strlcpy(fmr2->vdev.name, v4l2_dev->name, sizeof(fmr2->vdev.name));
/* mute card - prevents noisy bootups */ fmr2->vdev.v4l2_dev = v4l2_dev;
mutex_lock(&lock); fmr2->vdev.fops = &fmr2_fops;
fmr2_mute(io); fmr2->vdev.ioctl_ops = &fmr2_ioctl_ops;
fmr2_product_info(&fmr2_unit); fmr2->vdev.release = video_device_release_empty;
mutex_unlock(&lock); video_set_drvdata(&fmr2->vdev, fmr2);
debug_print((KERN_DEBUG "card_type %d\n", fmr2_unit.card_type));
/* Only card_type == 11 implements volume */ if (video_register_device(&fmr2->vdev, VFL_TYPE_RADIO, radio_nr) < 0) {
if (fmr2_unit.card_type != 11) v4l2_device_unregister(v4l2_dev);
radio_qctrl[AUD_VOL_INDEX].maximum = 1; release_region(fmr2->io, 2);
return -EINVAL;
}
v4l2_info(v4l2_dev, "SF16FMR2 radio card driver at 0x%x.\n", fmr2->io);
/* mute card - prevents noisy bootups */
mutex_lock(&fmr2->lock);
fmr2_mute(fmr2->io);
fmr2_product_info(fmr2);
mutex_unlock(&fmr2->lock);
debug_print((KERN_DEBUG "card_type %d\n", fmr2->card_type));
return 0; return 0;
} }
MODULE_AUTHOR("Ziglio Frediano, freddy77@angelfire.com"); static void __exit fmr2_exit(void)
MODULE_DESCRIPTION("A driver for the SF16FMR2 radio.");
MODULE_LICENSE("GPL");
module_param(io, int, 0);
MODULE_PARM_DESC(io, "I/O address of the SF16FMR2 card (should be 0x384, if do not work try 0x284)");
module_param(radio_nr, int, 0);
static void __exit fmr2_cleanup_module(void)
{ {
video_unregister_device(&fmr2_radio); struct fmr2 *fmr2 = &fmr2_card;
release_region(io,2);
video_unregister_device(&fmr2->vdev);
v4l2_device_unregister(&fmr2->v4l2_dev);
release_region(fmr2->io, 2);
} }
module_init(fmr2_init); module_init(fmr2_init);
module_exit(fmr2_cleanup_module); module_exit(fmr2_exit);
#ifndef MODULE #ifndef MODULE
......
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