[deliverable/linux.git] / drivers / media / radio / radio-rtrack2.c

/* RadioTrack II driver for Linux radio support (C) 1998 Ben Pfaff
 *
 * Based on RadioTrack I/RadioReveal (C) 1997 M. Kirkwood
 * Converted to new API by Alan Cox <Alan.Cox@linux.org>
 * Various bugfixes and enhancements by Russell Kroll <rkroll@exploits.org>
 *
 * TODO: Allow for more than one of these foolish entities :-)
 *
 * Converted to V4L2 API by Mauro Carvalho Chehab <mchehab@infradead.org>
 */

#include <linux/module.h>	/* Modules 			*/
#include <linux/init.h>		/* Initdata			*/
#include <linux/ioport.h>	/* request_region		*/
#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 <media/v4l2-common.h>
#include <media/v4l2-ioctl.h>
#include <linux/spinlock.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          = 65535,
		.default_value = 0xff,
		.type          = V4L2_CTRL_TYPE_INTEGER,
	}
};

#ifndef CONFIG_RADIO_RTRACK2_PORT
#define CONFIG_RADIO_RTRACK2_PORT -1
#endif

static int io = CONFIG_RADIO_RTRACK2_PORT;
static int radio_nr = -1;
static spinlock_t lock;

struct rt_device
{
	unsigned long in_use;
	int port;
	unsigned long curfreq;
	int muted;
};


/* local things */

static void rt_mute(struct rt_device *dev)
{
	if(dev->muted)
		return;
	spin_lock(&lock);
	outb(1, io);
	spin_unlock(&lock);
	dev->muted = 1;
}

static void rt_unmute(struct rt_device *dev)
{
	if(dev->muted == 0)
		return;
	spin_lock(&lock);
	outb(0, io);
	spin_unlock(&lock);
	dev->muted = 0;
}

static void zero(void)
{
	outb_p(1, io);
	outb_p(3, io);
	outb_p(1, io);
}

static void one(void)
{
	outb_p(5, io);
	outb_p(7, io);
	outb_p(5, io);
}

static int rt_setfreq(struct rt_device *dev, unsigned long freq)
{
	int i;

	freq = freq / 200 + 856;

	spin_lock(&lock);

	outb_p(0xc8, io);
	outb_p(0xc9, io);
	outb_p(0xc9, io);

	for (i = 0; i < 10; i++)
		zero ();

	for (i = 14; i >= 0; i--)
		if (freq & (1 << i))
			one ();
		else
			zero ();

	outb_p(0xc8, io);
	if (!dev->muted)
		outb_p(0, io);

	spin_unlock(&lock);
	return 0;
}

static int vidioc_querycap(struct file *file, void *priv,
				struct v4l2_capability *v)
{
	strlcpy(v->driver, "radio-rtrack2", sizeof(v->driver));
	strlcpy(v->card, "RadioTrack II", sizeof(v->card));
	sprintf(v->bus_info, "ISA");
	v->version = RADIO_VERSION;
	v->capabilities = V4L2_CAP_TUNER;
	return 0;
}

static int vidioc_s_tuner(struct file *file, void *priv,
				struct v4l2_tuner *v)
{
	if (v->index > 0)
		return -EINVAL;

	return 0;
}

static int rt_getsigstr(struct rt_device *dev)
{
	if (inb(io) & 2)	/* bit set = no signal present	*/
		return 0;
	return 1;		/* signal present		*/
}

static int vidioc_g_tuner(struct file *file, void *priv,
				struct v4l2_tuner *v)
{
	struct video_device *dev = video_devdata(file);
	struct rt_device *rt = video_get_drvdata(dev);

	if (v->index > 0)
		return -EINVAL;

	strcpy(v->name, "FM");
	v->type = V4L2_TUNER_RADIO;
	v->rangelow = (88*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;
}

static int vidioc_s_frequency(struct file *file, void *priv,
				struct v4l2_frequency *f)
{
	struct video_device *dev = video_devdata(file);
	struct rt_device *rt = video_get_drvdata(dev);

	rt->curfreq = f->frequency;
	rt_setfreq(rt, rt->curfreq);
	return 0;
}

static int vidioc_g_frequency(struct file *file, void *priv,
				struct v4l2_frequency *f)
{
	struct video_device *dev = video_devdata(file);
	struct rt_device *rt = video_get_drvdata(dev);

	f->type = V4L2_TUNER_RADIO;
	f->frequency = rt->curfreq;
	return 0;
}

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;
		}
	}
	return -EINVAL;
}

static int vidioc_g_ctrl(struct file *file, void *priv,
				struct v4l2_control *ctrl)
{
	struct video_device *dev = video_devdata(file);
	struct rt_device *rt = video_get_drvdata(dev);

	switch (ctrl->id) {
	case V4L2_CID_AUDIO_MUTE:
		ctrl->value = rt->muted;
		return 0;
	case V4L2_CID_AUDIO_VOLUME:
		if (rt->muted)
			ctrl->value = 0;
		else
			ctrl->value = 65535;
		return 0;
	}
	return -EINVAL;
}

static int vidioc_s_ctrl(struct file *file, void *priv,
				struct v4l2_control *ctrl)
{
	struct video_device *dev = video_devdata(file);
	struct rt_device *rt = video_get_drvdata(dev);

	switch (ctrl->id) {
	case V4L2_CID_AUDIO_MUTE:
		if (ctrl->value)
			rt_mute(rt);
		else
			rt_unmute(rt);
		return 0;
	case V4L2_CID_AUDIO_VOLUME:
		if (ctrl->value)
			rt_unmute(rt);
		else
			rt_mute(rt);
		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 vidioc_s_audio(struct file *file, void *priv,
				struct v4l2_audio *a)
{
	if (a->index != 0)
		return -EINVAL;
	return 0;
}

static struct rt_device rtrack2_unit;

static int rtrack2_exclusive_open(struct inode *inode, struct file *file)
{
	return test_and_set_bit(0, &rtrack2_unit.in_use) ? -EBUSY : 0;
}

static int rtrack2_exclusive_release(struct inode *inode, struct file *file)
{
	clear_bit(0, &rtrack2_unit.in_use);
	return 0;
}

static const struct file_operations rtrack2_fops = {
	.owner		= THIS_MODULE,
	.open           = rtrack2_exclusive_open,
	.release        = rtrack2_exclusive_release,
	.ioctl		= video_ioctl2,
#ifdef CONFIG_COMPAT
	.compat_ioctl	= v4l_compat_ioctl32,
#endif
	.llseek         = no_llseek,
};

static const struct v4l2_ioctl_ops rtrack2_ioctl_ops = {
	.vidioc_querycap    = vidioc_querycap,
	.vidioc_g_tuner     = vidioc_g_tuner,
	.vidioc_s_tuner     = vidioc_s_tuner,
	.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,
	.vidioc_g_audio     = vidioc_g_audio,
	.vidioc_s_audio     = vidioc_s_audio,
	.vidioc_g_input     = vidioc_g_input,
	.vidioc_s_input     = vidioc_s_input,
};

static struct video_device rtrack2_radio = {
	.name		= "RadioTrack II radio",
	.fops           = &rtrack2_fops,
	.ioctl_ops 	= &rtrack2_ioctl_ops,
	.release	= video_device_release_empty,
};

static int __init rtrack2_init(void)
{
	if(io==-1)
	{
		printk(KERN_ERR "You must set an I/O address with io=0x20c or io=0x30c\n");
		return -EINVAL;
	}
	if (!request_region(io, 4, "rtrack2"))
	{
		printk(KERN_ERR "rtrack2: port 0x%x already in use\n", io);
		return -EBUSY;
	}

	video_set_drvdata(&rtrack2_radio, &rtrack2_unit);

	spin_lock_init(&lock);
	if (video_register_device(&rtrack2_radio, VFL_TYPE_RADIO, radio_nr) < 0) {
		release_region(io, 4);
		return -EINVAL;
	}

	printk(KERN_INFO "AIMSlab Radiotrack II card driver.\n");

	/* mute card - prevents noisy bootups */
	outb(1, io);
	rtrack2_unit.muted = 1;

	return 0;
}

MODULE_AUTHOR("Ben Pfaff");
MODULE_DESCRIPTION("A driver for the RadioTrack II radio card.");
MODULE_LICENSE("GPL");

module_param(io, int, 0);
MODULE_PARM_DESC(io, "I/O address of the RadioTrack card (0x20c or 0x30c)");
module_param(radio_nr, int, 0);

static void __exit rtrack2_cleanup_module(void)
{
	video_unregister_device(&rtrack2_radio);
	release_region(io,4);
}

module_init(rtrack2_init);
module_exit(rtrack2_cleanup_module);

/*
  Local variables:
  compile-command: "mmake"
  End:
*/
Commit	Line	Data
1da177e4	1	/* RadioTrack II driver for Linux radio support (C) 1998 Ben Pfaff
4286c6f6	2	*
1da177e4 LT	3	* Based on RadioTrack I/RadioReveal (C) 1997 M. Kirkwood
	4	* Converted to new API by Alan Cox <Alan.Cox@linux.org>
	5	* Various bugfixes and enhancements by Russell Kroll <rkroll@exploits.org>
	6	*
	7	* TODO: Allow for more than one of these foolish entities :-)
	8	*
f8c559f8	9	* Converted to V4L2 API by Mauro Carvalho Chehab <mchehab@infradead.org>
1da177e4 LT	10	*/
	11
	12	#include <linux/module.h> /* Modules */
	13	#include <linux/init.h> /* Initdata */
fb911ee8	14	#include <linux/ioport.h> /* request_region */
1da177e4 LT	15	#include <linux/delay.h> /* udelay */
	16	#include <asm/io.h> /* outb, outb_p */
	17	#include <asm/uaccess.h> /* copy to/from user */
f8c559f8	18	#include <linux/videodev2.h> /* kernel radio structs */
5e87efa3	19	#include <media/v4l2-common.h>
35ea11ff	20	#include <media/v4l2-ioctl.h>
1da177e4 LT	21	#include <linux/spinlock.h>
1da177e4 LT	22
f8c559f8 MCC	23	#include <linux/version.h> /* for KERNEL_VERSION MACRO */
	24	#define RADIO_VERSION KERNEL_VERSION(0,0,2)
	25
	26	static struct v4l2_queryctrl radio_qctrl[] = {
	27	{
	28	.id = V4L2_CID_AUDIO_MUTE,
	29	.name = "Mute",
	30	.minimum = 0,
	31	.maximum = 1,
	32	.default_value = 1,
	33	.type = V4L2_CTRL_TYPE_BOOLEAN,
	34	},{
	35	.id = V4L2_CID_AUDIO_VOLUME,
	36	.name = "Volume",
	37	.minimum = 0,
	38	.maximum = 65535,
	39	.step = 65535,
	40	.default_value = 0xff,
	41	.type = V4L2_CTRL_TYPE_INTEGER,
	42	}
	43	};
	44
1da177e4 LT	45	#ifndef CONFIG_RADIO_RTRACK2_PORT
	46	#define CONFIG_RADIO_RTRACK2_PORT -1
	47	#endif
	48
4286c6f6	49	static int io = CONFIG_RADIO_RTRACK2_PORT;
1da177e4 LT	50	static int radio_nr = -1;
	51	static spinlock_t lock;
	52
	53	struct rt_device
	54	{
3ca685aa	55	unsigned long in_use;
1da177e4 LT	56	int port;
	57	unsigned long curfreq;
	58	int muted;
	59	};
	60
	61
	62	/* local things */
	63
	64	static void rt_mute(struct rt_device *dev)
	65	{
4286c6f6	66	if(dev->muted)
1da177e4 LT	67	return;
	68	spin_lock(&lock);
	69	outb(1, io);
	70	spin_unlock(&lock);
	71	dev->muted = 1;
	72	}
	73
	74	static void rt_unmute(struct rt_device *dev)
	75	{
	76	if(dev->muted == 0)
	77	return;
	78	spin_lock(&lock);
	79	outb(0, io);
	80	spin_unlock(&lock);
	81	dev->muted = 0;
	82	}
	83
	84	static void zero(void)
	85	{
4286c6f6	86	outb_p(1, io);
1da177e4 LT	87	outb_p(3, io);
	88	outb_p(1, io);
	89	}
	90
	91	static void one(void)
	92	{
4286c6f6	93	outb_p(5, io);
1da177e4 LT	94	outb_p(7, io);
	95	outb_p(5, io);
	96	}
	97
	98	static int rt_setfreq(struct rt_device *dev, unsigned long freq)
	99	{
	100	int i;
	101
	102	freq = freq / 200 + 856;
4286c6f6	103
1da177e4 LT	104	spin_lock(&lock);
	105
	106	outb_p(0xc8, io);
	107	outb_p(0xc9, io);
	108	outb_p(0xc9, io);
	109
	110	for (i = 0; i < 10; i++)
	111	zero ();
	112
	113	for (i = 14; i >= 0; i--)
	114	if (freq & (1 << i))
	115	one ();
	116	else
	117	zero ();
	118
	119	outb_p(0xc8, io);
	120	if (!dev->muted)
	121	outb_p(0, io);
4286c6f6	122
1da177e4 LT	123	spin_unlock(&lock);
	124	return 0;
	125	}
	126
25f30389 DL	127	static int vidioc_querycap(struct file file, void priv,
	128	struct v4l2_capability *v)
	129	{
	130	strlcpy(v->driver, "radio-rtrack2", sizeof(v->driver));
	131	strlcpy(v->card, "RadioTrack II", sizeof(v->card));
	132	sprintf(v->bus_info, "ISA");
	133	v->version = RADIO_VERSION;
	134	v->capabilities = V4L2_CAP_TUNER;
	135	return 0;
	136	}
	137
	138	static int vidioc_s_tuner(struct file file, void priv,
	139	struct v4l2_tuner *v)
	140	{
	141	if (v->index > 0)
	142	return -EINVAL;
	143
	144	return 0;
	145	}
	146
1da177e4 LT	147	static int rt_getsigstr(struct rt_device *dev)
	148	{
	149	if (inb(io) & 2) /* bit set = no signal present */
	150	return 0;
	151	return 1; /* signal present */
	152	}
	153
25f30389 DL	154	static int vidioc_g_tuner(struct file file, void priv,
25f30389 DL	155	struct v4l2_tuner *v)
1da177e4 LT	156	{
1da177e4 LT	157	struct video_device *dev = video_devdata(file);
601e9444	158	struct rt_device *rt = video_get_drvdata(dev);
25f30389 DL	159
	160	if (v->index > 0)
	161	return -EINVAL;
	162
	163	strcpy(v->name, "FM");
	164	v->type = V4L2_TUNER_RADIO;
	165	v->rangelow = (88*16000);
	166	v->rangehigh = (108*16000);
	167	v->rxsubchans = V4L2_TUNER_SUB_MONO;
	168	v->capability = V4L2_TUNER_CAP_LOW;
	169	v->audmode = V4L2_TUNER_MODE_MONO;
	170	v->signal = 0xFFFF*rt_getsigstr(rt);
	171	return 0;
	172	}
f8c559f8	173
25f30389 DL	174	static int vidioc_s_frequency(struct file file, void priv,
	175	struct v4l2_frequency *f)
	176	{
	177	struct video_device *dev = video_devdata(file);
601e9444	178	struct rt_device *rt = video_get_drvdata(dev);
f8c559f8	179
25f30389 DL	180	rt->curfreq = f->frequency;
	181	rt_setfreq(rt, rt->curfreq);
	182	return 0;
	183	}
f8c559f8	184
25f30389 DL	185	static int vidioc_g_frequency(struct file file, void priv,
	186	struct v4l2_frequency *f)
	187	{
	188	struct video_device *dev = video_devdata(file);
601e9444	189	struct rt_device *rt = video_get_drvdata(dev);
f8c559f8	190
25f30389 DL	191	f->type = V4L2_TUNER_RADIO;
	192	f->frequency = rt->curfreq;
	193	return 0;
	194	}
f8c559f8	195
25f30389 DL	196	static int vidioc_queryctrl(struct file file, void priv,
	197	struct v4l2_queryctrl *qc)
	198	{
	199	int i;
f8c559f8	200
25f30389 DL	201	for (i = 0; i < ARRAY_SIZE(radio_qctrl); i++) {
	202	if (qc->id && qc->id == radio_qctrl[i].id) {
	203	memcpy(qc, &(radio_qctrl[i]),
	204	sizeof(*qc));
1da177e4 LT	205	return 0;
1da177e4 LT	206	}
25f30389 DL	207	}
	208	return -EINVAL;
	209	}
f8c559f8	210
25f30389 DL	211	static int vidioc_g_ctrl(struct file file, void priv,
	212	struct v4l2_control *ctrl)
	213	{
	214	struct video_device *dev = video_devdata(file);
601e9444	215	struct rt_device *rt = video_get_drvdata(dev);
f8c559f8	216
25f30389 DL	217	switch (ctrl->id) {
	218	case V4L2_CID_AUDIO_MUTE:
	219	ctrl->value = rt->muted;
	220	return 0;
	221	case V4L2_CID_AUDIO_VOLUME:
	222	if (rt->muted)
	223	ctrl->value = 0;
	224	else
	225	ctrl->value = 65535;
	226	return 0;
1da177e4	227	}
25f30389	228	return -EINVAL;
1da177e4 LT	229	}
1da177e4 LT	230
25f30389 DL	231	static int vidioc_s_ctrl(struct file file, void priv,
25f30389 DL	232	struct v4l2_control *ctrl)
1da177e4	233	{
25f30389	234	struct video_device *dev = video_devdata(file);
601e9444	235	struct rt_device *rt = video_get_drvdata(dev);
25f30389 DL	236
	237	switch (ctrl->id) {
	238	case V4L2_CID_AUDIO_MUTE:
	239	if (ctrl->value)
	240	rt_mute(rt);
	241	else
	242	rt_unmute(rt);
	243	return 0;
	244	case V4L2_CID_AUDIO_VOLUME:
	245	if (ctrl->value)
	246	rt_unmute(rt);
	247	else
	248	rt_mute(rt);
	249	return 0;
	250	}
	251	return -EINVAL;
1da177e4 LT	252	}
1da177e4 LT	253
8b811cf0 DL	254	static int vidioc_g_audio(struct file file, void priv,
	255	struct v4l2_audio *a)
	256	{
	257	if (a->index > 1)
	258	return -EINVAL;
	259
	260	strcpy(a->name, "Radio");
	261	a->capability = V4L2_AUDCAP_STEREO;
	262	return 0;
	263	}
	264
	265	static int vidioc_g_input(struct file filp, void priv, unsigned int *i)
	266	{
	267	*i = 0;
	268	return 0;
	269	}
	270
	271	static int vidioc_s_input(struct file filp, void priv, unsigned int i)
	272	{
	273	if (i != 0)
	274	return -EINVAL;
	275	return 0;
	276	}
	277
	278	static int vidioc_s_audio(struct file file, void priv,
	279	struct v4l2_audio *a)
	280	{
	281	if (a->index != 0)
	282	return -EINVAL;
	283	return 0;
	284	}
	285
1da177e4 LT	286	static struct rt_device rtrack2_unit;
1da177e4 LT	287
3ca685aa HV	288	static int rtrack2_exclusive_open(struct inode inode, struct file file)
	289	{
	290	return test_and_set_bit(0, &rtrack2_unit.in_use) ? -EBUSY : 0;
	291	}
	292
	293	static int rtrack2_exclusive_release(struct inode inode, struct file file)
	294	{
	295	clear_bit(0, &rtrack2_unit.in_use);
	296	return 0;
	297	}
	298
fa027c2a	299	static const struct file_operations rtrack2_fops = {
1da177e4	300	.owner = THIS_MODULE,
3ca685aa HV	301	.open = rtrack2_exclusive_open,
3ca685aa HV	302	.release = rtrack2_exclusive_release,
25f30389	303	.ioctl = video_ioctl2,
078ff795	304	#ifdef CONFIG_COMPAT
0d0fbf81	305	.compat_ioctl = v4l_compat_ioctl32,
078ff795	306	#endif
1da177e4 LT	307	.llseek = no_llseek,
	308	};
	309
a399810c	310	static const struct v4l2_ioctl_ops rtrack2_ioctl_ops = {
25f30389 DL	311	.vidioc_querycap = vidioc_querycap,
	312	.vidioc_g_tuner = vidioc_g_tuner,
	313	.vidioc_s_tuner = vidioc_s_tuner,
	314	.vidioc_g_frequency = vidioc_g_frequency,
	315	.vidioc_s_frequency = vidioc_s_frequency,
	316	.vidioc_queryctrl = vidioc_queryctrl,
	317	.vidioc_g_ctrl = vidioc_g_ctrl,
	318	.vidioc_s_ctrl = vidioc_s_ctrl,
8b811cf0 DL	319	.vidioc_g_audio = vidioc_g_audio,
	320	.vidioc_s_audio = vidioc_s_audio,
	321	.vidioc_g_input = vidioc_g_input,
	322	.vidioc_s_input = vidioc_s_input,
1da177e4 LT	323	};
1da177e4 LT	324
a399810c	325	static struct video_device rtrack2_radio = {
a399810c	326	.name = "RadioTrack II radio",
a399810c HV	327	.fops = &rtrack2_fops,
a399810c HV	328	.ioctl_ops = &rtrack2_ioctl_ops,
aa5e90af	329	.release = video_device_release_empty,
a399810c HV	330	};
a399810c HV	331
1da177e4 LT	332	static int __init rtrack2_init(void)
	333	{
	334	if(io==-1)
	335	{
	336	printk(KERN_ERR "You must set an I/O address with io=0x20c or io=0x30c\n");
	337	return -EINVAL;
	338	}
4286c6f6	339	if (!request_region(io, 4, "rtrack2"))
1da177e4 LT	340	{
	341	printk(KERN_ERR "rtrack2: port 0x%x already in use\n", io);
	342	return -EBUSY;
	343	}
	344
601e9444	345	video_set_drvdata(&rtrack2_radio, &rtrack2_unit);
1da177e4	346
4286c6f6	347	spin_lock_init(&lock);
cba99ae8	348	if (video_register_device(&rtrack2_radio, VFL_TYPE_RADIO, radio_nr) < 0) {
1da177e4 LT	349	release_region(io, 4);
	350	return -EINVAL;
	351	}
4286c6f6	352
1da177e4 LT	353	printk(KERN_INFO "AIMSlab Radiotrack II card driver.\n");
1da177e4 LT	354
4286c6f6	355	/* mute card - prevents noisy bootups */
1da177e4 LT	356	outb(1, io);
	357	rtrack2_unit.muted = 1;
	358
	359	return 0;
	360	}
	361
	362	MODULE_AUTHOR("Ben Pfaff");
	363	MODULE_DESCRIPTION("A driver for the RadioTrack II radio card.");
	364	MODULE_LICENSE("GPL");
	365
	366	module_param(io, int, 0);
	367	MODULE_PARM_DESC(io, "I/O address of the RadioTrack card (0x20c or 0x30c)");
	368	module_param(radio_nr, int, 0);
	369
	370	static void __exit rtrack2_cleanup_module(void)
	371	{
	372	video_unregister_device(&rtrack2_radio);
	373	release_region(io,4);
	374	}
	375
	376	module_init(rtrack2_init);
	377	module_exit(rtrack2_cleanup_module);
	378
	379	/*
	380	Local variables:
	381	compile-command: "mmake"
	382	End:
	383	*/