[GitHub/mt8127/android_kernel_alcatel_ttab.git] / drivers / media / radio / radio-terratec.c

/* Terratec ActiveRadio ISA Standalone card driver for Linux radio support
 * (c) 1999 R. Offermanns (rolf@offermanns.de)
 * based on the aimslab radio driver from M. Kirkwood
 * many thanks to Michael Becker and Friedhelm Birth (from TerraTec)
 *
 *
 * History:
 * 1999-05-21	First preview release
 *
 *  Notes on the hardware:
 *  There are two "main" chips on the card:
 *  - Philips OM5610 (http://www-us.semiconductors.philips.com/acrobat/datasheets/OM5610_2.pdf)
 *  - Philips SAA6588 (http://www-us.semiconductors.philips.com/acrobat/datasheets/SAA6588_1.pdf)
 *  (you can get the datasheet at the above links)
 *
 *  Frequency control is done digitally -- ie out(port,encodefreq(95.8));
 *  Volume Control is done digitally
 *
 *  there is a I2C controlled RDS decoder (SAA6588)  onboard, which i would like to support someday
 *  (as soon i have understand how to get started :)
 *  If you can help me out with that, please contact me!!
 *
 *
 * 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/videodev2.h>	/* kernel radio structs		*/
#include <linux/mutex.h>
#include <linux/version.h>      /* for KERNEL_VERSION MACRO     */
#include <linux/io.h>		/* outb, outb_p			*/
#include <media/v4l2-device.h>
#include <media/v4l2-ioctl.h>

MODULE_AUTHOR("R.OFFERMANNS & others");
MODULE_DESCRIPTION("A driver for the TerraTec ActiveRadio Standalone radio card.");
MODULE_LICENSE("GPL");

#ifndef CONFIG_RADIO_TERRATEC_PORT
#define CONFIG_RADIO_TERRATEC_PORT 0x590
#endif

static int io = CONFIG_RADIO_TERRATEC_PORT;
static int radio_nr = -1;

module_param(io, int, 0);
MODULE_PARM_DESC(io, "I/O address of the TerraTec ActiveRadio card (0x590 or 0x591)");
module_param(radio_nr, int, 0);

#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       = 0xff,
		.step          = 1,
		.default_value = 0xff,
		.type          = V4L2_CTRL_TYPE_INTEGER,
	}
};

#define WRT_DIS 	0x00
#define CLK_OFF		0x00
#define IIC_DATA	0x01
#define IIC_CLK		0x02
#define DATA		0x04
#define CLK_ON 		0x08
#define WRT_EN		0x10

struct terratec
{
	struct v4l2_device v4l2_dev;
	struct video_device vdev;
	int io;
	int curvol;
	unsigned long curfreq;
	int muted;
	struct mutex lock;
};

static struct terratec terratec_card;

/* local things */

static void tt_write_vol(struct terratec *tt, int volume)
{
	int i;

	volume = volume + (volume * 32); /* change both channels */
	mutex_lock(&tt->lock);
	for (i = 0; i < 8; i++) {
		if (volume & (0x80 >> i))
			outb(0x80, tt->io + 1);
		else
			outb(0x00, tt->io + 1);
	}
	mutex_unlock(&tt->lock);
}


static void tt_mute(struct terratec *tt)
{
	tt->muted = 1;
	tt_write_vol(tt, 0);
}

static int tt_setvol(struct terratec *tt, int vol)
{
	if (vol == tt->curvol) {	/* requested volume = current */
		if (tt->muted) {	/* user is unmuting the card  */
			tt->muted = 0;
			tt_write_vol(tt, vol);	/* enable card */
		}
		return 0;
	}

	if (vol == 0) {			/* volume = 0 means mute the card */
		tt_write_vol(tt, 0);	/* "turn off card" by setting vol to 0 */
		tt->curvol = vol;	/* track the volume state!	*/
		return 0;
	}

	tt->muted = 0;
	tt_write_vol(tt, vol);
	tt->curvol = vol;
	return 0;
}


/* this is the worst part in this driver */
/* many more or less strange things are going on here, but hey, it works :) */

static int tt_setfreq(struct terratec *tt, unsigned long freq1)
{
	int freq;
	int i;
	int p;
	int  temp;
	long rest;
	unsigned char buffer[25];		/* we have to bit shift 25 registers */

	mutex_lock(&tt->lock);

	tt->curfreq = freq1;

	freq = freq1 / 160;			/* convert the freq. to a nice to handle value */
	memset(buffer, 0, sizeof(buffer));

	rest = freq * 10 + 10700;	/* I once had understood what is going on here */
					/* maybe some wise guy (friedhelm?) can comment this stuff */
	i = 13;
	p = 10;
	temp = 102400;
	while (rest != 0) {
		if (rest % temp  == rest)
			buffer[i] = 0;
		else {
			buffer[i] = 1;
			rest = rest - temp;
		}
		i--;
		p--;
		temp = temp / 2;
	}

	for (i = 24; i > -1; i--) {	/* bit shift the values to the radiocard */
		if (buffer[i] == 1) {
			outb(WRT_EN | DATA, tt->io);
			outb(WRT_EN | DATA | CLK_ON, tt->io);
			outb(WRT_EN | DATA, tt->io);
		} else {
			outb(WRT_EN | 0x00, tt->io);
			outb(WRT_EN | 0x00 | CLK_ON, tt->io);
		}
	}
	outb(0x00, tt->io);

	mutex_unlock(&tt->lock);

	return 0;
}

static int tt_getsigstr(struct terratec *tt)
{
	if (inb(tt->io) & 2)	/* bit set = no signal present	*/
		return 0;
	return 1;		/* signal present		*/
}

static int vidioc_querycap(struct file *file, void *priv,
					struct v4l2_capability *v)
{
	strlcpy(v->driver, "radio-terratec", sizeof(v->driver));
	strlcpy(v->card, "ActiveRadio", sizeof(v->card));
	strlcpy(v->bus_info, "ISA", sizeof(v->bus_info));
	v->version = RADIO_VERSION;
	v->capabilities = V4L2_CAP_TUNER | V4L2_CAP_RADIO;
	return 0;
}

static int vidioc_g_tuner(struct file *file, void *priv,
					struct v4l2_tuner *v)
{
	struct terratec *tt = video_drvdata(file);

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

	strlcpy(v->name, "FM", sizeof(v->name));
	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 * tt_getsigstr(tt);
	return 0;
}

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

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

	if (f->tuner != 0 || f->type != V4L2_TUNER_RADIO)
		return -EINVAL;
	tt_setfreq(tt, f->frequency);
	return 0;
}

static int vidioc_g_frequency(struct file *file, void *priv,
					struct v4l2_frequency *f)
{
	struct terratec *tt = video_drvdata(file);

	if (f->tuner != 0)
		return -EINVAL;
	f->type = V4L2_TUNER_RADIO;
	f->frequency = tt->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 terratec *tt = video_drvdata(file);

	switch (ctrl->id) {
	case V4L2_CID_AUDIO_MUTE:
		if (tt->muted)
			ctrl->value = 1;
		else
			ctrl->value = 0;
		return 0;
	case V4L2_CID_AUDIO_VOLUME:
		ctrl->value = tt->curvol * 6554;
		return 0;
	}
	return -EINVAL;
}

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

	switch (ctrl->id) {
	case V4L2_CID_AUDIO_MUTE:
		if (ctrl->value)
			tt_mute(tt);
		else
			tt_setvol(tt,tt->curvol);
		return 0;
	case V4L2_CID_AUDIO_VOLUME:
		tt_setvol(tt,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)
{
	return i ? -EINVAL : 0;
}

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;
}

static int vidioc_s_audio(struct file *file, void *priv,
					struct v4l2_audio *a)
{
	return a->index ? -EINVAL : 0;
}

static const struct v4l2_file_operations terratec_fops = {
	.owner		= THIS_MODULE,
	.unlocked_ioctl	= video_ioctl2,
};

static const struct v4l2_ioctl_ops terratec_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 int __init terratec_init(void)
{
	struct terratec *tt = &terratec_card;
	struct v4l2_device *v4l2_dev = &tt->v4l2_dev;
	int res;

	strlcpy(v4l2_dev->name, "terratec", sizeof(v4l2_dev->name));
	tt->io = io;
	if (tt->io == -1) {
		v4l2_err(v4l2_dev, "you must set an I/O address with io=0x590 or 0x591\n");
		return -EINVAL;
	}
	if (!request_region(tt->io, 2, "terratec")) {
		v4l2_err(v4l2_dev, "port 0x%x already in use\n", io);
		return -EBUSY;
	}

	res = v4l2_device_register(NULL, v4l2_dev);
	if (res < 0) {
		release_region(tt->io, 2);
		v4l2_err(v4l2_dev, "Could not register v4l2_device\n");
		return res;
	}

	strlcpy(tt->vdev.name, v4l2_dev->name, sizeof(tt->vdev.name));
	tt->vdev.v4l2_dev = v4l2_dev;
	tt->vdev.fops = &terratec_fops;
	tt->vdev.ioctl_ops = &terratec_ioctl_ops;
	tt->vdev.release = video_device_release_empty;
	video_set_drvdata(&tt->vdev, tt);

	mutex_init(&tt->lock);

	/* mute card - prevents noisy bootups */
	tt_write_vol(tt, 0);

	if (video_register_device(&tt->vdev, VFL_TYPE_RADIO, radio_nr) < 0) {
		v4l2_device_unregister(&tt->v4l2_dev);
		release_region(tt->io, 2);
		return -EINVAL;
	}

	v4l2_info(v4l2_dev, "TERRATEC ActivRadio Standalone card driver.\n");
	return 0;
}

static void __exit terratec_exit(void)
{
	struct terratec *tt = &terratec_card;
	struct v4l2_device *v4l2_dev = &tt->v4l2_dev;

	video_unregister_device(&tt->vdev);
	v4l2_device_unregister(&tt->v4l2_dev);
	release_region(tt->io, 2);
	v4l2_info(v4l2_dev, "TERRATEC ActivRadio Standalone card driver unloaded.\n");
}

module_init(terratec_init);
module_exit(terratec_exit);
Commit	Line	Data
1da177e4 LT	1	/* Terratec ActiveRadio ISA Standalone card driver for Linux radio support
	2	* (c) 1999 R. Offermanns (rolf@offermanns.de)
	3	* based on the aimslab radio driver from M. Kirkwood
	4	* many thanks to Michael Becker and Friedhelm Birth (from TerraTec)
4286c6f6	5	*
1da177e4 LT	6	*
	7	* History:
	8	* 1999-05-21 First preview release
4286c6f6	9	*
1da177e4 LT	10	* Notes on the hardware:
	11	* There are two "main" chips on the card:
	12	* - Philips OM5610 (http://www-us.semiconductors.philips.com/acrobat/datasheets/OM5610_2.pdf)
	13	* - Philips SAA6588 (http://www-us.semiconductors.philips.com/acrobat/datasheets/SAA6588_1.pdf)
	14	* (you can get the datasheet at the above links)
	15	*
	16	* Frequency control is done digitally -- ie out(port,encodefreq(95.8));
	17	* Volume Control is done digitally
	18	*
	19	* there is a I2C controlled RDS decoder (SAA6588) onboard, which i would like to support someday
	20	* (as soon i have understand how to get started :)
	21	* If you can help me out with that, please contact me!!
	22	*
4286c6f6	23	*
55ac7b69	24	* Converted to V4L2 API by Mauro Carvalho Chehab <mchehab@infradead.org>
1da177e4 LT	25	*/
	26
	27	#include <linux/module.h> /* Modules */
	28	#include <linux/init.h> /* Initdata */
fb911ee8	29	#include <linux/ioport.h> /* request_region */
55ac7b69	30	#include <linux/videodev2.h> /* kernel radio structs */
5ac3d5bf HV	31	#include <linux/mutex.h>
	32	#include <linux/version.h> /* for KERNEL_VERSION MACRO */
	33	#include <linux/io.h> /* outb, outb_p */
5ac3d5bf	34	#include <media/v4l2-device.h>
35ea11ff	35	#include <media/v4l2-ioctl.h>
1da177e4	36
5ac3d5bf HV	37	MODULE_AUTHOR("R.OFFERMANNS & others");
	38	MODULE_DESCRIPTION("A driver for the TerraTec ActiveRadio Standalone radio card.");
	39	MODULE_LICENSE("GPL");
	40
	41	#ifndef CONFIG_RADIO_TERRATEC_PORT
	42	#define CONFIG_RADIO_TERRATEC_PORT 0x590
	43	#endif
	44
	45	static int io = CONFIG_RADIO_TERRATEC_PORT;
	46	static int radio_nr = -1;
	47
	48	module_param(io, int, 0);
	49	MODULE_PARM_DESC(io, "I/O address of the TerraTec ActiveRadio card (0x590 or 0x591)");
	50	module_param(radio_nr, int, 0);
	51
	52	#define RADIO_VERSION KERNEL_VERSION(0, 0, 2)
55ac7b69 MCC	53
	54	static struct v4l2_queryctrl radio_qctrl[] = {
	55	{
	56	.id = V4L2_CID_AUDIO_MUTE,
	57	.name = "Mute",
	58	.minimum = 0,
	59	.maximum = 1,
	60	.default_value = 1,
	61	.type = V4L2_CTRL_TYPE_BOOLEAN,
	62	},{
	63	.id = V4L2_CID_AUDIO_VOLUME,
	64	.name = "Volume",
	65	.minimum = 0,
	66	.maximum = 0xff,
	67	.step = 1,
	68	.default_value = 0xff,
	69	.type = V4L2_CTRL_TYPE_INTEGER,
	70	}
	71	};
	72
1da177e4 LT	73	#define WRT_DIS 0x00
	74	#define CLK_OFF 0x00
	75	#define IIC_DATA 0x01
	76	#define IIC_CLK 0x02
	77	#define DATA 0x04
	78	#define CLK_ON 0x08
	79	#define WRT_EN 0x10
1da177e4	80
5ac3d5bf	81	struct terratec
1da177e4	82	{
5ac3d5bf HV	83	struct v4l2_device v4l2_dev;
	84	struct video_device vdev;
	85	int io;
1da177e4 LT	86	int curvol;
	87	unsigned long curfreq;
	88	int muted;
5ac3d5bf	89	struct mutex lock;
1da177e4 LT	90	};
1da177e4 LT	91
5ac3d5bf	92	static struct terratec terratec_card;
1da177e4 LT	93
	94	/* local things */
	95
5ac3d5bf	96	static void tt_write_vol(struct terratec *tt, int volume)
1da177e4 LT	97	{
1da177e4 LT	98	int i;
5ac3d5bf HV	99
	100	volume = volume + (volume * 32); /* change both channels */
	101	mutex_lock(&tt->lock);
	102	for (i = 0; i < 8; i++) {
	103	if (volume & (0x80 >> i))
	104	outb(0x80, tt->io + 1);
	105	else
	106	outb(0x00, tt->io + 1);
1da177e4	107	}
5ac3d5bf	108	mutex_unlock(&tt->lock);
1da177e4 LT	109	}
	110
	111
	112
5ac3d5bf	113	static void tt_mute(struct terratec *tt)
1da177e4	114	{
5ac3d5bf HV	115	tt->muted = 1;
5ac3d5bf HV	116	tt_write_vol(tt, 0);
1da177e4 LT	117	}
1da177e4 LT	118
5ac3d5bf	119	static int tt_setvol(struct terratec *tt, int vol)
1da177e4	120	{
5ac3d5bf HV	121	if (vol == tt->curvol) { /* requested volume = current */
	122	if (tt->muted) { /* user is unmuting the card */
	123	tt->muted = 0;
	124	tt_write_vol(tt, vol); /* enable card */
4286c6f6	125	}
1da177e4 LT	126	return 0;
	127	}
	128
5ac3d5bf HV	129	if (vol == 0) { /* volume = 0 means mute the card */
	130	tt_write_vol(tt, 0); /* "turn off card" by setting vol to 0 */
	131	tt->curvol = vol; /* track the volume state! */
1da177e4 LT	132	return 0;
	133	}
	134
5ac3d5bf HV	135	tt->muted = 0;
	136	tt_write_vol(tt, vol);
	137	tt->curvol = vol;
1da177e4	138	return 0;
1da177e4 LT	139	}
	140
	141
	142	/* this is the worst part in this driver */
	143	/* many more or less strange things are going on here, but hey, it works :) */
	144
5ac3d5bf	145	static int tt_setfreq(struct terratec *tt, unsigned long freq1)
4286c6f6	146	{
1da177e4 LT	147	int freq;
	148	int i;
	149	int p;
	150	int temp;
	151	long rest;
1da177e4	152	unsigned char buffer[25]; /* we have to bit shift 25 registers */
1da177e4	153
5ac3d5bf HV	154	mutex_lock(&tt->lock);
	155
	156	tt->curfreq = freq1;
	157
	158	freq = freq1 / 160; /* convert the freq. to a nice to handle value */
	159	memset(buffer, 0, sizeof(buffer));
	160
	161	rest = freq * 10 + 10700; /* I once had understood what is going on here */
1da177e4	162	/* maybe some wise guy (friedhelm?) can comment this stuff */
5ac3d5bf HV	163	i = 13;
	164	p = 10;
	165	temp = 102400;
	166	while (rest != 0) {
	167	if (rest % temp == rest)
1da177e4	168	buffer[i] = 0;
5ac3d5bf	169	else {
4286c6f6	170	buffer[i] = 1;
5ac3d5bf	171	rest = rest - temp;
1da177e4 LT	172	}
	173	i--;
	174	p--;
5ac3d5bf	175	temp = temp / 2;
b930e1d8	176	}
1da177e4	177
5ac3d5bf HV	178	for (i = 24; i > -1; i--) { /* bit shift the values to the radiocard */
	179	if (buffer[i] == 1) {
	180	outb(WRT_EN \| DATA, tt->io);
	181	outb(WRT_EN \| DATA \| CLK_ON, tt->io);
	182	outb(WRT_EN \| DATA, tt->io);
	183	} else {
	184	outb(WRT_EN \| 0x00, tt->io);
	185	outb(WRT_EN \| 0x00 \| CLK_ON, tt->io);
1da177e4 LT	186	}
1da177e4 LT	187	}
5ac3d5bf	188	outb(0x00, tt->io);
4286c6f6	189
5ac3d5bf	190	mutex_unlock(&tt->lock);
4286c6f6 MCC	191
4286c6f6 MCC	192	return 0;
1da177e4 LT	193	}
1da177e4 LT	194
5ac3d5bf	195	static int tt_getsigstr(struct terratec *tt)
1da177e4	196	{
5ac3d5bf	197	if (inb(tt->io) & 2) /* bit set = no signal present */
1da177e4 LT	198	return 0;
	199	return 1; /* signal present */
	200	}
	201
1de69238 DL	202	static int vidioc_querycap(struct file file, void priv,
	203	struct v4l2_capability *v)
	204	{
	205	strlcpy(v->driver, "radio-terratec", sizeof(v->driver));
	206	strlcpy(v->card, "ActiveRadio", sizeof(v->card));
5ac3d5bf	207	strlcpy(v->bus_info, "ISA", sizeof(v->bus_info));
1de69238	208	v->version = RADIO_VERSION;
5ac3d5bf	209	v->capabilities = V4L2_CAP_TUNER \| V4L2_CAP_RADIO;
1de69238 DL	210	return 0;
1de69238 DL	211	}
1da177e4	212
1de69238 DL	213	static int vidioc_g_tuner(struct file file, void priv,
1de69238 DL	214	struct v4l2_tuner *v)
1da177e4	215	{
5ac3d5bf	216	struct terratec *tt = video_drvdata(file);
4286c6f6	217
1de69238 DL	218	if (v->index > 0)
1de69238 DL	219	return -EINVAL;
55ac7b69	220
5ac3d5bf	221	strlcpy(v->name, "FM", sizeof(v->name));
1de69238	222	v->type = V4L2_TUNER_RADIO;
5ac3d5bf HV	223	v->rangelow = 87 * 16000;
5ac3d5bf HV	224	v->rangehigh = 108 * 16000;
1de69238 DL	225	v->rxsubchans = V4L2_TUNER_SUB_MONO;
	226	v->capability = V4L2_TUNER_CAP_LOW;
	227	v->audmode = V4L2_TUNER_MODE_MONO;
5ac3d5bf	228	v->signal = 0xFFFF * tt_getsigstr(tt);
1de69238 DL	229	return 0;
1de69238 DL	230	}
55ac7b69	231
1de69238 DL	232	static int vidioc_s_tuner(struct file file, void priv,
	233	struct v4l2_tuner *v)
	234	{
5ac3d5bf	235	return v->index ? -EINVAL : 0;
1de69238	236	}
55ac7b69	237
1de69238 DL	238	static int vidioc_s_frequency(struct file file, void priv,
	239	struct v4l2_frequency *f)
	240	{
5ac3d5bf	241	struct terratec *tt = video_drvdata(file);
55ac7b69	242
a3a9e287 HV	243	if (f->tuner != 0 \|\| f->type != V4L2_TUNER_RADIO)
a3a9e287 HV	244	return -EINVAL;
5ac3d5bf	245	tt_setfreq(tt, f->frequency);
1de69238 DL	246	return 0;
1de69238 DL	247	}
55ac7b69	248
1de69238 DL	249	static int vidioc_g_frequency(struct file file, void priv,
	250	struct v4l2_frequency *f)
	251	{
5ac3d5bf	252	struct terratec *tt = video_drvdata(file);
55ac7b69	253
a3a9e287 HV	254	if (f->tuner != 0)
a3a9e287 HV	255	return -EINVAL;
1de69238 DL	256	f->type = V4L2_TUNER_RADIO;
	257	f->frequency = tt->curfreq;
	258	return 0;
	259	}
55ac7b69	260
1de69238 DL	261	static int vidioc_queryctrl(struct file file, void priv,
	262	struct v4l2_queryctrl *qc)
	263	{
	264	int i;
55ac7b69	265
1de69238 DL	266	for (i = 0; i < ARRAY_SIZE(radio_qctrl); i++) {
1de69238 DL	267	if (qc->id && qc->id == radio_qctrl[i].id) {
5ac3d5bf	268	memcpy(qc, &(radio_qctrl[i]), sizeof(*qc));
1da177e4 LT	269	return 0;
1da177e4 LT	270	}
1de69238 DL	271	}
	272	return -EINVAL;
	273	}
55ac7b69	274
1de69238 DL	275	static int vidioc_g_ctrl(struct file file, void priv,
	276	struct v4l2_control *ctrl)
	277	{
5ac3d5bf	278	struct terratec *tt = video_drvdata(file);
55ac7b69	279
1de69238 DL	280	switch (ctrl->id) {
	281	case V4L2_CID_AUDIO_MUTE:
	282	if (tt->muted)
	283	ctrl->value = 1;
	284	else
	285	ctrl->value = 0;
	286	return 0;
	287	case V4L2_CID_AUDIO_VOLUME:
	288	ctrl->value = tt->curvol * 6554;
	289	return 0;
	290	}
	291	return -EINVAL;
	292	}
55ac7b69	293
1de69238 DL	294	static int vidioc_s_ctrl(struct file file, void priv,
	295	struct v4l2_control *ctrl)
	296	{
5ac3d5bf	297	struct terratec *tt = video_drvdata(file);
1de69238 DL	298
	299	switch (ctrl->id) {
	300	case V4L2_CID_AUDIO_MUTE:
	301	if (ctrl->value)
	302	tt_mute(tt);
	303	else
	304	tt_setvol(tt,tt->curvol);
	305	return 0;
	306	case V4L2_CID_AUDIO_VOLUME:
	307	tt_setvol(tt,ctrl->value);
	308	return 0;
1da177e4	309	}
1de69238 DL	310	return -EINVAL;
	311	}
	312
1de69238 DL	313	static int vidioc_g_input(struct file filp, void priv, unsigned int *i)
	314	{
	315	*i = 0;
	316	return 0;
1da177e4 LT	317	}
1da177e4 LT	318
1de69238	319	static int vidioc_s_input(struct file filp, void priv, unsigned int i)
1da177e4	320	{
5ac3d5bf	321	return i ? -EINVAL : 0;
1de69238 DL	322	}
1de69238 DL	323
5ac3d5bf	324	static int vidioc_g_audio(struct file file, void priv,
1de69238 DL	325	struct v4l2_audio *a)
1de69238 DL	326	{
5ac3d5bf HV	327	a->index = 0;
	328	strlcpy(a->name, "Radio", sizeof(a->name));
	329	a->capability = V4L2_AUDCAP_STEREO;
1de69238	330	return 0;
1da177e4 LT	331	}
1da177e4 LT	332
5ac3d5bf HV	333	static int vidioc_s_audio(struct file file, void priv,
	334	struct v4l2_audio *a)
	335	{
	336	return a->index ? -EINVAL : 0;
	337	}
1da177e4	338
bec43661	339	static const struct v4l2_file_operations terratec_fops = {
1da177e4	340	.owner = THIS_MODULE,
32958fdd	341	.unlocked_ioctl = video_ioctl2,
1da177e4 LT	342	};
1da177e4 LT	343
a399810c	344	static const struct v4l2_ioctl_ops terratec_ioctl_ops = {
1de69238 DL	345	.vidioc_querycap = vidioc_querycap,
	346	.vidioc_g_tuner = vidioc_g_tuner,
	347	.vidioc_s_tuner = vidioc_s_tuner,
	348	.vidioc_g_frequency = vidioc_g_frequency,
	349	.vidioc_s_frequency = vidioc_s_frequency,
	350	.vidioc_queryctrl = vidioc_queryctrl,
	351	.vidioc_g_ctrl = vidioc_g_ctrl,
	352	.vidioc_s_ctrl = vidioc_s_ctrl,
	353	.vidioc_g_audio = vidioc_g_audio,
	354	.vidioc_s_audio = vidioc_s_audio,
	355	.vidioc_g_input = vidioc_g_input,
	356	.vidioc_s_input = vidioc_s_input,
1da177e4 LT	357	};
	358
	359	static int __init terratec_init(void)
	360	{
5ac3d5bf HV	361	struct terratec *tt = &terratec_card;
	362	struct v4l2_device *v4l2_dev = &tt->v4l2_dev;
	363	int res;
	364
	365	strlcpy(v4l2_dev->name, "terratec", sizeof(v4l2_dev->name));
	366	tt->io = io;
	367	if (tt->io == -1) {
b24c20cc	368	v4l2_err(v4l2_dev, "you must set an I/O address with io=0x590 or 0x591\n");
1da177e4 LT	369	return -EINVAL;
1da177e4 LT	370	}
5ac3d5bf HV	371	if (!request_region(tt->io, 2, "terratec")) {
5ac3d5bf HV	372	v4l2_err(v4l2_dev, "port 0x%x already in use\n", io);
1da177e4 LT	373	return -EBUSY;
	374	}
	375
5ac3d5bf HV	376	res = v4l2_device_register(NULL, v4l2_dev);
	377	if (res < 0) {
	378	release_region(tt->io, 2);
	379	v4l2_err(v4l2_dev, "Could not register v4l2_device\n");
	380	return res;
	381	}
	382
	383	strlcpy(tt->vdev.name, v4l2_dev->name, sizeof(tt->vdev.name));
	384	tt->vdev.v4l2_dev = v4l2_dev;
	385	tt->vdev.fops = &terratec_fops;
	386	tt->vdev.ioctl_ops = &terratec_ioctl_ops;
	387	tt->vdev.release = video_device_release_empty;
	388	video_set_drvdata(&tt->vdev, tt);
4286c6f6	389
5ac3d5bf	390	mutex_init(&tt->lock);
4286c6f6	391
32958fdd HV	392	/* mute card - prevents noisy bootups */
	393	tt_write_vol(tt, 0);
	394
5ac3d5bf HV	395	if (video_register_device(&tt->vdev, VFL_TYPE_RADIO, radio_nr) < 0) {
	396	v4l2_device_unregister(&tt->v4l2_dev);
	397	release_region(tt->io, 2);
1da177e4 LT	398	return -EINVAL;
1da177e4 LT	399	}
4286c6f6	400
5ac3d5bf	401	v4l2_info(v4l2_dev, "TERRATEC ActivRadio Standalone card driver.\n");
1da177e4 LT	402	return 0;
	403	}
	404
5ac3d5bf	405	static void __exit terratec_exit(void)
1da177e4	406	{
5ac3d5bf HV	407	struct terratec *tt = &terratec_card;
	408	struct v4l2_device *v4l2_dev = &tt->v4l2_dev;
	409
	410	video_unregister_device(&tt->vdev);
	411	v4l2_device_unregister(&tt->v4l2_dev);
	412	release_region(tt->io, 2);
	413	v4l2_info(v4l2_dev, "TERRATEC ActivRadio Standalone card driver unloaded.\n");
1da177e4 LT	414	}
	415
	416	module_init(terratec_init);
5ac3d5bf	417	module_exit(terratec_exit);
1da177e4	418