[GitHub/mt8127/android_kernel_alcatel_ttab.git] / sound / i2c / other / tea575x-tuner.c

/*
 *   ALSA driver for TEA5757/5759 Philips AM/FM radio tuner chips
 *
 *	Copyright (c) 2004 Jaroslav Kysela <perex@perex.cz>
 *
 *
 *   This program is free software; you can redistribute it and/or modify
 *   it under the terms of the GNU General Public License as published by
 *   the Free Software Foundation; either version 2 of the License, or
 *   (at your option) any later version.
 *
 *   This program is distributed in the hope that it will be useful,
 *   but WITHOUT ANY WARRANTY; without even the implied warranty of
 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *   GNU General Public License for more details.
 *
 *   You should have received a copy of the GNU General Public License
 *   along with this program; if not, write to the Free Software
 *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
 *
 */

#include <asm/io.h>
#include <linux/delay.h>
#include <linux/interrupt.h>
#include <linux/init.h>
#include <linux/slab.h>
#include <linux/version.h>
#include <sound/core.h>
#include <sound/tea575x-tuner.h>

MODULE_AUTHOR("Jaroslav Kysela <perex@perex.cz>");
MODULE_DESCRIPTION("Routines for control of TEA5757/5759 Philips AM/FM radio tuner chips");
MODULE_LICENSE("GPL");

static int radio_nr = -1;
module_param(radio_nr, int, 0);

#define RADIO_VERSION KERNEL_VERSION(0, 0, 2)
#define FREQ_LO		 (87 * 16000)
#define FREQ_HI		(108 * 16000)

/*
 * definitions
 */

#define TEA575X_BIT_SEARCH	(1<<24)		/* 1 = search action, 0 = tuned */
#define TEA575X_BIT_UPDOWN	(1<<23)		/* 0 = search down, 1 = search up */
#define TEA575X_BIT_MONO	(1<<22)		/* 0 = stereo, 1 = mono */
#define TEA575X_BIT_BAND_MASK	(3<<20)
#define TEA575X_BIT_BAND_FM	(0<<20)
#define TEA575X_BIT_BAND_MW	(1<<20)
#define TEA575X_BIT_BAND_LW	(1<<21)
#define TEA575X_BIT_BAND_SW	(1<<22)
#define TEA575X_BIT_PORT_0	(1<<19)		/* user bit */
#define TEA575X_BIT_PORT_1	(1<<18)		/* user bit */
#define TEA575X_BIT_SEARCH_MASK	(3<<16)		/* search level */
#define TEA575X_BIT_SEARCH_5_28	     (0<<16)	/* FM >5uV, AM >28uV */
#define TEA575X_BIT_SEARCH_10_40     (1<<16)	/* FM >10uV, AM > 40uV */
#define TEA575X_BIT_SEARCH_30_63     (2<<16)	/* FM >30uV, AM > 63uV */
#define TEA575X_BIT_SEARCH_150_1000  (3<<16)	/* FM > 150uV, AM > 1000uV */
#define TEA575X_BIT_DUMMY	(1<<15)		/* buffer */
#define TEA575X_BIT_FREQ_MASK	0x7fff

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,
	}
};

/*
 * lowlevel part
 */

static void snd_tea575x_set_freq(struct snd_tea575x *tea)
{
	unsigned long freq;

	freq = tea->freq / 16;		/* to kHz */
	if (freq > 108000)
		freq = 108000;
	if (freq < 87000)
		freq = 87000;
	/* crystal fixup */
	if (tea->tea5759)
		freq -= tea->freq_fixup;
	else
		freq += tea->freq_fixup;
	/* freq /= 12.5 */
	freq *= 10;
	freq /= 125;

	tea->val &= ~TEA575X_BIT_FREQ_MASK;
	tea->val |= freq & TEA575X_BIT_FREQ_MASK;
	tea->ops->write(tea, tea->val);
}

/*
 * Linux Video interface
 */

static int vidioc_querycap(struct file *file, void  *priv,
					struct v4l2_capability *v)
{
	struct snd_tea575x *tea = video_drvdata(file);

	strcpy(v->card, tea->tea5759 ? "TEA5759" : "TEA5757");
	strlcpy(v->driver, "tea575x-tuner", sizeof(v->driver));
	strlcpy(v->card, "Maestro Radio", sizeof(v->card));
	sprintf(v->bus_info, "PCI");
	v->version = RADIO_VERSION;
	v->capabilities = V4L2_CAP_TUNER;
	return 0;
}

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

	strcpy(v->name, "FM");
	v->type = V4L2_TUNER_RADIO;
	v->rangelow = FREQ_LO;
	v->rangehigh = FREQ_HI;
	v->rxsubchans = V4L2_TUNER_SUB_MONO|V4L2_TUNER_SUB_STEREO;
	v->capability = V4L2_TUNER_CAP_LOW;
	v->audmode = V4L2_TUNER_MODE_MONO;
	v->signal = 0xffff;
	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 vidioc_g_frequency(struct file *file, void *priv,
					struct v4l2_frequency *f)
{
	struct snd_tea575x *tea = video_drvdata(file);

	f->type = V4L2_TUNER_RADIO;
	f->frequency = tea->freq;
	return 0;
}

static int vidioc_s_frequency(struct file *file, void *priv,
					struct v4l2_frequency *f)
{
	struct snd_tea575x *tea = video_drvdata(file);

	if (f->frequency < FREQ_LO || f->frequency > FREQ_HI)
		return -EINVAL;

	tea->freq = f->frequency;

	snd_tea575x_set_freq(tea);

	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;
}

static int vidioc_s_audio(struct file *file, void *priv,
					struct v4l2_audio *a)
{
	if (a->index != 0)
		return -EINVAL;
	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 snd_tea575x *tea = video_drvdata(file);

	switch (ctrl->id) {
	case V4L2_CID_AUDIO_MUTE:
		if (tea->ops->mute) {
			ctrl->value = tea->mute;
			return 0;
		}
	}
	return -EINVAL;
}

static int vidioc_s_ctrl(struct file *file, void *priv,
					struct v4l2_control *ctrl)
{
	struct snd_tea575x *tea = video_drvdata(file);

	switch (ctrl->id) {
	case V4L2_CID_AUDIO_MUTE:
		if (tea->ops->mute) {
			tea->ops->mute(tea, ctrl->value);
			tea->mute = ctrl->value;
			return 0;
		}
	}
	return -EINVAL;
}

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 snd_tea575x_exclusive_open(struct file *file)
{
	struct snd_tea575x *tea = video_drvdata(file);

	return test_and_set_bit(0, &tea->in_use) ? -EBUSY : 0;
}

static int snd_tea575x_exclusive_release(struct file *file)
{
	struct snd_tea575x *tea = video_drvdata(file);

	clear_bit(0, &tea->in_use);
	return 0;
}

static const struct v4l2_file_operations tea575x_fops = {
	.owner		= THIS_MODULE,
	.open           = snd_tea575x_exclusive_open,
	.release        = snd_tea575x_exclusive_release,
	.ioctl		= video_ioctl2,
};

static const struct v4l2_ioctl_ops tea575x_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 tea575x_radio = {
	.name           = "tea575x-tuner",
	.fops           = &tea575x_fops,
	.ioctl_ops 	= &tea575x_ioctl_ops,
	.release	= video_device_release,
};

/*
 * initialize all the tea575x chips
 */
void snd_tea575x_init(struct snd_tea575x *tea)
{
	int retval;
	unsigned int val;
	struct video_device *tea575x_radio_inst;

	val = tea->ops->read(tea);
	if (val == 0x1ffffff || val == 0) {
		snd_printk(KERN_ERR
			   "tea575x-tuner: Cannot find TEA575x chip\n");
		return;
	}

	tea->in_use = 0;
	tea->val = TEA575X_BIT_BAND_FM | TEA575X_BIT_SEARCH_10_40;
	tea->freq = 90500 * 16;		/* 90.5Mhz default */

	tea575x_radio_inst = video_device_alloc();
	if (tea575x_radio_inst == NULL) {
		printk(KERN_ERR "tea575x-tuner: not enough memory\n");
		return;
	}

	memcpy(tea575x_radio_inst, &tea575x_radio, sizeof(tea575x_radio));

	strcpy(tea575x_radio.name, tea->tea5759 ?
				   "TEA5759 radio" : "TEA5757 radio");

	video_set_drvdata(tea575x_radio_inst, tea);

	retval = video_register_device(tea575x_radio_inst,
				       VFL_TYPE_RADIO, radio_nr);
	if (retval) {
		printk(KERN_ERR "tea575x-tuner: can't register video device!\n");
		kfree(tea575x_radio_inst);
		return;
	}

	snd_tea575x_set_freq(tea);

	/* mute on init */
	if (tea->ops->mute) {
		tea->ops->mute(tea, 1);
		tea->mute = 1;
	}
	tea->vd = tea575x_radio_inst;
}

void snd_tea575x_exit(struct snd_tea575x *tea)
{
	if (tea->vd) {
		video_unregister_device(tea->vd);
		tea->vd = NULL;
	}
}

static int __init alsa_tea575x_module_init(void)
{
	return 0;
}

static void __exit alsa_tea575x_module_exit(void)
{
}

module_init(alsa_tea575x_module_init)
module_exit(alsa_tea575x_module_exit)

EXPORT_SYMBOL(snd_tea575x_init);
EXPORT_SYMBOL(snd_tea575x_exit);
Commit	Line	Data
1da177e4 LT	1	/*
	2	* ALSA driver for TEA5757/5759 Philips AM/FM radio tuner chips
	3	*
c1017a4c	4	* Copyright (c) 2004 Jaroslav Kysela <perex@perex.cz>
1da177e4 LT	5	*
	6	*
	7	* This program is free software; you can redistribute it and/or modify
	8	* it under the terms of the GNU General Public License as published by
	9	* the Free Software Foundation; either version 2 of the License, or
	10	* (at your option) any later version.
	11	*
	12	* This program is distributed in the hope that it will be useful,
	13	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	14	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	15	* GNU General Public License for more details.
	16	*
	17	* You should have received a copy of the GNU General Public License
	18	* along with this program; if not, write to the Free Software
	19	* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
	20	*
4b29631d	21	*/
1da177e4	22
1da177e4 LT	23	#include <asm/io.h>
	24	#include <linux/delay.h>
	25	#include <linux/interrupt.h>
	26	#include <linux/init.h>
5a0e3ad6	27	#include <linux/slab.h>
9b76ede4	28	#include <linux/version.h>
1da177e4 LT	29	#include <sound/core.h>
	30	#include <sound/tea575x-tuner.h>
	31
c1017a4c	32	MODULE_AUTHOR("Jaroslav Kysela <perex@perex.cz>");
1da177e4 LT	33	MODULE_DESCRIPTION("Routines for control of TEA5757/5759 Philips AM/FM radio tuner chips");
	34	MODULE_LICENSE("GPL");
	35
9b76ede4 MCC	36	static int radio_nr = -1;
	37	module_param(radio_nr, int, 0);
	38
	39	#define RADIO_VERSION KERNEL_VERSION(0, 0, 2)
	40	#define FREQ_LO (87 * 16000)
	41	#define FREQ_HI (108 * 16000)
	42
1da177e4 LT	43	/*
	44	* definitions
	45	*/
	46
	47	#define TEA575X_BIT_SEARCH (1<<24) /* 1 = search action, 0 = tuned */
	48	#define TEA575X_BIT_UPDOWN (1<<23) /* 0 = search down, 1 = search up */
	49	#define TEA575X_BIT_MONO (1<<22) /* 0 = stereo, 1 = mono */
	50	#define TEA575X_BIT_BAND_MASK (3<<20)
	51	#define TEA575X_BIT_BAND_FM (0<<20)
	52	#define TEA575X_BIT_BAND_MW (1<<20)
	53	#define TEA575X_BIT_BAND_LW (1<<21)
	54	#define TEA575X_BIT_BAND_SW (1<<22)
	55	#define TEA575X_BIT_PORT_0 (1<<19) /* user bit */
	56	#define TEA575X_BIT_PORT_1 (1<<18) /* user bit */
	57	#define TEA575X_BIT_SEARCH_MASK (3<<16) /* search level */
	58	#define TEA575X_BIT_SEARCH_5_28 (0<<16) /* FM >5uV, AM >28uV */
	59	#define TEA575X_BIT_SEARCH_10_40 (1<<16) /* FM >10uV, AM > 40uV */
	60	#define TEA575X_BIT_SEARCH_30_63 (2<<16) /* FM >30uV, AM > 63uV */
	61	#define TEA575X_BIT_SEARCH_150_1000 (3<<16) /* FM > 150uV, AM > 1000uV */
	62	#define TEA575X_BIT_DUMMY (1<<15) /* buffer */
	63	#define TEA575X_BIT_FREQ_MASK 0x7fff
	64
9b76ede4 MCC	65	static struct v4l2_queryctrl radio_qctrl[] = {
	66	{
	67	.id = V4L2_CID_AUDIO_MUTE,
	68	.name = "Mute",
	69	.minimum = 0,
	70	.maximum = 1,
	71	.default_value = 1,
	72	.type = V4L2_CTRL_TYPE_BOOLEAN,
	73	}
	74	};
	75
1da177e4 LT	76	/*
	77	* lowlevel part
	78	*/
	79
97f02e05	80	static void snd_tea575x_set_freq(struct snd_tea575x *tea)
1da177e4 LT	81	{
	82	unsigned long freq;
	83
	84	freq = tea->freq / 16; /* to kHz */
	85	if (freq > 108000)
	86	freq = 108000;
	87	if (freq < 87000)
	88	freq = 87000;
	89	/* crystal fixup */
	90	if (tea->tea5759)
	91	freq -= tea->freq_fixup;
	92	else
	93	freq += tea->freq_fixup;
	94	/* freq /= 12.5 */
	95	freq *= 10;
	96	freq /= 125;
	97
	98	tea->val &= ~TEA575X_BIT_FREQ_MASK;
	99	tea->val \|= freq & TEA575X_BIT_FREQ_MASK;
	100	tea->ops->write(tea, tea->val);
	101	}
	102
	103	/*
	104	* Linux Video interface
	105	*/
	106
9b76ede4 MCC	107	static int vidioc_querycap(struct file file, void priv,
9b76ede4 MCC	108	struct v4l2_capability *v)
1da177e4	109	{
c170ecf4	110	struct snd_tea575x *tea = video_drvdata(file);
9b76ede4 MCC	111
	112	strcpy(v->card, tea->tea5759 ? "TEA5759" : "TEA5757");
	113	strlcpy(v->driver, "tea575x-tuner", sizeof(v->driver));
	114	strlcpy(v->card, "Maestro Radio", sizeof(v->card));
	115	sprintf(v->bus_info, "PCI");
	116	v->version = RADIO_VERSION;
	117	v->capabilities = V4L2_CAP_TUNER;
	118	return 0;
	119	}
	120
	121	static int vidioc_g_tuner(struct file file, void priv,
	122	struct v4l2_tuner *v)
	123	{
	124	if (v->index > 0)
	125	return -EINVAL;
	126
	127	strcpy(v->name, "FM");
	128	v->type = V4L2_TUNER_RADIO;
	129	v->rangelow = FREQ_LO;
	130	v->rangehigh = FREQ_HI;
	131	v->rxsubchans = V4L2_TUNER_SUB_MONO\|V4L2_TUNER_SUB_STEREO;
	132	v->capability = V4L2_TUNER_CAP_LOW;
	133	v->audmode = V4L2_TUNER_MODE_MONO;
	134	v->signal = 0xffff;
	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	return 0;
	144	}
	145
	146	static int vidioc_g_frequency(struct file file, void priv,
	147	struct v4l2_frequency *f)
	148	{
	149	struct snd_tea575x *tea = video_drvdata(file);
	150
	151	f->type = V4L2_TUNER_RADIO;
	152	f->frequency = tea->freq;
	153	return 0;
	154	}
	155
	156	static int vidioc_s_frequency(struct file file, void priv,
	157	struct v4l2_frequency *f)
	158	{
	159	struct snd_tea575x *tea = video_drvdata(file);
	160
	161	if (f->frequency < FREQ_LO \|\| f->frequency > FREQ_HI)
	162	return -EINVAL;
	163
	164	tea->freq = f->frequency;
	165
	166	snd_tea575x_set_freq(tea);
	167
	168	return 0;
	169	}
	170
	171	static int vidioc_g_audio(struct file file, void priv,
	172	struct v4l2_audio *a)
	173	{
	174	if (a->index > 1)
175	return -EINVAL;
176
177	strcpy(a->name, "Radio");
178	a->capability = V4L2_AUDCAP_STEREO;
179	return 0;
180	}
181
182	static int vidioc_s_audio(struct file file, void priv,
183	struct v4l2_audio *a)
184	{
185	if (a->index != 0)
186	return -EINVAL;
187	return 0;
188	}
189
190	static int vidioc_queryctrl(struct file file, void priv,
191	struct v4l2_queryctrl *qc)
192	{
193	int i;
194
195	for (i = 0; i < ARRAY_SIZE(radio_qctrl); i++) {
196	if (qc->id && qc->id == radio_qctrl[i].id) {
197	memcpy(qc, &(radio_qctrl[i]),
198	sizeof(*qc));
1da177e4 LT	199	return 0;
1da177e4 LT	200	}
9b76ede4 MCC	201	}
	202	return -EINVAL;
	203	}
	204
	205	static int vidioc_g_ctrl(struct file file, void priv,
	206	struct v4l2_control *ctrl)
	207	{
	208	struct snd_tea575x *tea = video_drvdata(file);
	209
	210	switch (ctrl->id) {
	211	case V4L2_CID_AUDIO_MUTE:
	212	if (tea->ops->mute) {
	213	ctrl->value = tea->mute;
4b29631d	214	return 0;
1da177e4	215	}
9b76ede4 MCC	216	}
	217	return -EINVAL;
	218	}
	219
	220	static int vidioc_s_ctrl(struct file file, void priv,
	221	struct v4l2_control *ctrl)
	222	{
	223	struct snd_tea575x *tea = video_drvdata(file);
	224
	225	switch (ctrl->id) {
	226	case V4L2_CID_AUDIO_MUTE:
	227	if (tea->ops->mute) {
	228	tea->ops->mute(tea, ctrl->value);
1233faa8	229	tea->mute = ctrl->value;
1da177e4 LT	230	return 0;
1da177e4 LT	231	}
1da177e4	232	}
9b76ede4 MCC	233	return -EINVAL;
	234	}
	235
	236	static int vidioc_g_input(struct file filp, void priv, unsigned int *i)
	237	{
	238	*i = 0;
	239	return 0;
1da177e4 LT	240	}
1da177e4 LT	241
9b76ede4	242	static int vidioc_s_input(struct file filp, void priv, unsigned int i)
1da177e4	243	{
9b76ede4 MCC	244	if (i != 0)
	245	return -EINVAL;
	246	return 0;
1da177e4 LT	247	}
1da177e4 LT	248
bec43661	249	static int snd_tea575x_exclusive_open(struct file *file)
2f3d0025	250	{
c170ecf4	251	struct snd_tea575x *tea = video_drvdata(file);
2f3d0025 HV	252
	253	return test_and_set_bit(0, &tea->in_use) ? -EBUSY : 0;
	254	}
	255
bec43661	256	static int snd_tea575x_exclusive_release(struct file *file)
2f3d0025	257	{
c170ecf4	258	struct snd_tea575x *tea = video_drvdata(file);
2f3d0025 HV	259
	260	clear_bit(0, &tea->in_use);
	261	return 0;
	262	}
	263
9b76ede4 MCC	264	static const struct v4l2_file_operations tea575x_fops = {
	265	.owner = THIS_MODULE,
	266	.open = snd_tea575x_exclusive_open,
	267	.release = snd_tea575x_exclusive_release,
	268	.ioctl = video_ioctl2,
	269	};
	270
	271	static const struct v4l2_ioctl_ops tea575x_ioctl_ops = {
	272	.vidioc_querycap = vidioc_querycap,
	273	.vidioc_g_tuner = vidioc_g_tuner,
	274	.vidioc_s_tuner = vidioc_s_tuner,
	275	.vidioc_g_audio = vidioc_g_audio,
	276	.vidioc_s_audio = vidioc_s_audio,
	277	.vidioc_g_input = vidioc_g_input,
	278	.vidioc_s_input = vidioc_s_input,
	279	.vidioc_g_frequency = vidioc_g_frequency,
	280	.vidioc_s_frequency = vidioc_s_frequency,
	281	.vidioc_queryctrl = vidioc_queryctrl,
	282	.vidioc_g_ctrl = vidioc_g_ctrl,
	283	.vidioc_s_ctrl = vidioc_s_ctrl,
	284	};
	285
	286	static struct video_device tea575x_radio = {
	287	.name = "tea575x-tuner",
	288	.fops = &tea575x_fops,
	289	.ioctl_ops = &tea575x_ioctl_ops,
	290	.release = video_device_release,
	291	};
	292
1da177e4 LT	293	/*
	294	* initialize all the tea575x chips
	295	*/
97f02e05	296	void snd_tea575x_init(struct snd_tea575x *tea)
1da177e4	297	{
9b76ede4	298	int retval;
1da177e4	299	unsigned int val;
9b76ede4	300	struct video_device *tea575x_radio_inst;
1da177e4 LT	301
	302	val = tea->ops->read(tea);
	303	if (val == 0x1ffffff \|\| val == 0) {
9b76ede4 MCC	304	snd_printk(KERN_ERR
9b76ede4 MCC	305	"tea575x-tuner: Cannot find TEA575x chip\n");
1da177e4 LT	306	return;
	307	}
	308
2f3d0025	309	tea->in_use = 0;
9b76ede4 MCC	310	tea->val = TEA575X_BIT_BAND_FM \| TEA575X_BIT_SEARCH_10_40;
	311	tea->freq = 90500 * 16; /* 90.5Mhz default */
	312
	313	tea575x_radio_inst = video_device_alloc();
	314	if (tea575x_radio_inst == NULL) {
	315	printk(KERN_ERR "tea575x-tuner: not enough memory\n");
1da177e4 LT	316	return;
1da177e4 LT	317	}
1da177e4	318
9b76ede4 MCC	319	memcpy(tea575x_radio_inst, &tea575x_radio, sizeof(tea575x_radio));
	320
	321	strcpy(tea575x_radio.name, tea->tea5759 ?
	322	"TEA5759 radio" : "TEA5757 radio");
	323
	324	video_set_drvdata(tea575x_radio_inst, tea);
	325
	326	retval = video_register_device(tea575x_radio_inst,
	327	VFL_TYPE_RADIO, radio_nr);
	328	if (retval) {
	329	printk(KERN_ERR "tea575x-tuner: can't register video device!\n");
	330	kfree(tea575x_radio_inst);
	331	return;
	332	}
1da177e4 LT	333
1da177e4 LT	334	snd_tea575x_set_freq(tea);
69252128 AS	335
69252128 AS	336	/* mute on init */
9b76ede4	337	if (tea->ops->mute) {
69252128	338	tea->ops->mute(tea, 1);
9b76ede4 MCC	339	tea->mute = 1;
	340	}
	341	tea->vd = tea575x_radio_inst;
1da177e4 LT	342	}
1da177e4 LT	343
97f02e05	344	void snd_tea575x_exit(struct snd_tea575x *tea)
1da177e4	345	{
9b76ede4 MCC	346	if (tea->vd) {
	347	video_unregister_device(tea->vd);
	348	tea->vd = NULL;
1da177e4 LT	349	}
	350	}
	351
	352	static int __init alsa_tea575x_module_init(void)
	353	{
	354	return 0;
	355	}
4b29631d	356
1da177e4 LT	357	static void __exit alsa_tea575x_module_exit(void)
	358	{
	359	}
4b29631d	360
1da177e4 LT	361	module_init(alsa_tea575x_module_init)
	362	module_exit(alsa_tea575x_module_exit)
	363
	364	EXPORT_SYMBOL(snd_tea575x_init);
	365	EXPORT_SYMBOL(snd_tea575x_exit);