[mirror_ubuntu-artful-kernel.git] / drivers / media / radio / radio-gemtek-pci.c

/*
 ***************************************************************************
 *
 *     radio-gemtek-pci.c - Gemtek PCI Radio driver
 *     (C) 2001 Vladimir Shebordaev <vshebordaev@mail.ru>
 *
 ***************************************************************************
 *
 *     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., 675 Mass Ave, Cambridge, MA 02139,
 *     USA.
 *
 ***************************************************************************
 *
 *     Gemtek Corp still silently refuses to release any specifications
 *     of their multimedia devices, so the protocol still has to be
 *     reverse engineered.
 *
 *     The v4l code was inspired by Jonas Munsin's  Gemtek serial line
 *     radio device driver.
 *
 *     Please, let me know if this piece of code was useful :)
 *
 *     TODO: multiple device support and portability were not tested
 *
 *     Converted to V4L2 API by Mauro Carvalho Chehab <mchehab@infradead.org>
 *
 ***************************************************************************
 */

#include <linux/types.h>
#include <linux/list.h>
#include <linux/module.h>
#include <linux/init.h>
#include <linux/pci.h>
#include <linux/videodev2.h>
#include <media/v4l2-common.h>
#include <linux/errno.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,
	}
};

#include <asm/io.h>
#include <asm/uaccess.h>

#ifndef PCI_VENDOR_ID_GEMTEK
#define PCI_VENDOR_ID_GEMTEK 0x5046
#endif

#ifndef PCI_DEVICE_ID_GEMTEK_PR103
#define PCI_DEVICE_ID_GEMTEK_PR103 0x1001
#endif

#ifndef GEMTEK_PCI_RANGE_LOW
#define GEMTEK_PCI_RANGE_LOW (87*16000)
#endif

#ifndef GEMTEK_PCI_RANGE_HIGH
#define GEMTEK_PCI_RANGE_HIGH (108*16000)
#endif

struct gemtek_pci_card {
	struct video_device *videodev;

	u32 iobase;
	u32 length;
	u16 model;

	u32 current_frequency;
	u8  mute;
};

static const char rcsid[] = "$Id: radio-gemtek-pci.c,v 1.1 2001/07/23 08:08:16 ted Exp ted $";

static int nr_radio = -1;

static inline u8 gemtek_pci_out( u16 value, u32 port )
{
	outw( value, port );

	return (u8)value;
}

#define _b0( v ) *((u8 *)&v)
static void __gemtek_pci_cmd( u16 value, u32 port, u8 *last_byte, int keep )
{
	register u8 byte = *last_byte;

	if ( !value ) {
		if ( !keep )
			value = (u16)port;
		byte &= 0xfd;
	} else
		byte |= 2;

	_b0( value ) = byte;
	outw( value, port );
	byte |= 1;
	_b0( value ) = byte;
	outw( value, port );
	byte &= 0xfe;
	_b0( value ) = byte;
	outw( value, port );

	*last_byte = byte;
}

static inline void gemtek_pci_nil( u32 port, u8 *last_byte )
{
	__gemtek_pci_cmd( 0x00, port, last_byte, false );
}

static inline void gemtek_pci_cmd( u16 cmd, u32 port, u8 *last_byte )
{
	__gemtek_pci_cmd( cmd, port, last_byte, true );
}

static void gemtek_pci_setfrequency( struct gemtek_pci_card *card, unsigned long frequency )
{
	register int i;
	register u32 value = frequency / 200 + 856;
	register u16 mask = 0x8000;
	u8 last_byte;
	u32 port = card->iobase;

	last_byte = gemtek_pci_out( 0x06, port );

	i = 0;
	do {
		gemtek_pci_nil( port, &last_byte );
		i++;
	} while ( i < 9 );

	i = 0;
	do {
		gemtek_pci_cmd( value & mask, port, &last_byte );
		mask >>= 1;
		i++;
	} while ( i < 16 );

	outw( 0x10, port );
}


static inline void gemtek_pci_mute( struct gemtek_pci_card *card )
{
	outb( 0x1f, card->iobase );
	card->mute = true;
}

static inline void gemtek_pci_unmute( struct gemtek_pci_card *card )
{
	if ( card->mute ) {
		gemtek_pci_setfrequency( card, card->current_frequency );
		card->mute = false;
	}
}

static inline unsigned int gemtek_pci_getsignal( struct gemtek_pci_card *card )
{
	return ( inb( card->iobase ) & 0x08 ) ? 0 : 1;
}

static int vidioc_querycap(struct file *file, void *priv,
					struct v4l2_capability *v)
{
	strlcpy(v->driver, "radio-gemtek-pci", sizeof(v->driver));
	strlcpy(v->card, "GemTek PCI Radio", sizeof(v->card));
	sprintf(v->bus_info, "ISA");
	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)
{
	struct video_device *dev = video_devdata(file);
	struct gemtek_pci_card *card = dev->priv;

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

	strcpy(v->name, "FM");
	v->type = V4L2_TUNER_RADIO;
	v->rangelow = GEMTEK_PCI_RANGE_LOW;
	v->rangehigh = GEMTEK_PCI_RANGE_HIGH;
	v->rxsubchans = V4L2_TUNER_SUB_MONO;
	v->capability = V4L2_TUNER_CAP_LOW;
	v->audmode = V4L2_TUNER_MODE_MONO;
	v->signal = 0xffff * gemtek_pci_getsignal(card);
	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_s_frequency(struct file *file, void *priv,
					struct v4l2_frequency *f)
{
	struct video_device *dev = video_devdata(file);
	struct gemtek_pci_card *card = dev->priv;

	if ( (f->frequency < GEMTEK_PCI_RANGE_LOW) ||
			(f->frequency > GEMTEK_PCI_RANGE_HIGH) )
		return -EINVAL;
	gemtek_pci_setfrequency(card, f->frequency);
	card->current_frequency = f->frequency;
	card->mute = false;
	return 0;
}

static int vidioc_g_frequency(struct file *file, void *priv,
					struct v4l2_frequency *f)
{
	struct video_device *dev = video_devdata(file);
	struct gemtek_pci_card *card = dev->priv;

	f->type = V4L2_TUNER_RADIO;
	f->frequency = card->current_frequency;
	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 gemtek_pci_card *card = dev->priv;

	switch (ctrl->id) {
	case V4L2_CID_AUDIO_MUTE:
		ctrl->value = card->mute;
		return 0;
	case V4L2_CID_AUDIO_VOLUME:
		if (card->mute)
			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 gemtek_pci_card *card = dev->priv;

	switch (ctrl->id) {
	case V4L2_CID_AUDIO_MUTE:
		if (ctrl->value)
			gemtek_pci_mute(card);
		else
			gemtek_pci_unmute(card);
		return 0;
	case V4L2_CID_AUDIO_VOLUME:
		if (ctrl->value)
			gemtek_pci_unmute(card);
		else
			gemtek_pci_mute(card);
		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;
}

enum {
	GEMTEK_PR103
};

static char *card_names[] __devinitdata = {
	"GEMTEK_PR103"
};

static struct pci_device_id gemtek_pci_id[] =
{
	{ PCI_VENDOR_ID_GEMTEK, PCI_DEVICE_ID_GEMTEK_PR103,
	  PCI_ANY_ID, PCI_ANY_ID, 0, 0, GEMTEK_PR103 },
	{ 0 }
};

MODULE_DEVICE_TABLE( pci, gemtek_pci_id );

static int mx = 1;

static const struct file_operations gemtek_pci_fops = {
	.owner		= THIS_MODULE,
	.open           = video_exclusive_open,
	.release        = video_exclusive_release,
	.ioctl		= video_ioctl2,
	.compat_ioctl	= v4l_compat_ioctl32,
	.llseek         = no_llseek,
};

static struct video_device vdev_template = {
	.owner         = THIS_MODULE,
	.name          = "Gemtek PCI Radio",
	.type          = VID_TYPE_TUNER,
	.hardware      = 0,
	.fops          = &gemtek_pci_fops,
	.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 int __devinit gemtek_pci_probe( struct pci_dev *pci_dev, const struct pci_device_id *pci_id )
{
	struct gemtek_pci_card *card;
	struct video_device *devradio;

	if ( (card = kzalloc( sizeof( struct gemtek_pci_card ), GFP_KERNEL )) == NULL ) {
		printk( KERN_ERR "gemtek_pci: out of memory\n" );
		return -ENOMEM;
	}

	if ( pci_enable_device( pci_dev ) )
		goto err_pci;

	card->iobase = pci_resource_start( pci_dev, 0 );
	card->length = pci_resource_len( pci_dev, 0 );

	if ( request_region( card->iobase, card->length, card_names[pci_id->driver_data] ) == NULL ) {
		printk( KERN_ERR "gemtek_pci: i/o port already in use\n" );
		goto err_pci;
	}

	pci_read_config_word( pci_dev, PCI_SUBSYSTEM_ID, &card->model );

	pci_set_drvdata( pci_dev, card );

	if ( (devradio = kmalloc( sizeof( struct video_device ), GFP_KERNEL )) == NULL ) {
		printk( KERN_ERR "gemtek_pci: out of memory\n" );
		goto err_video;
	}
	*devradio = vdev_template;

	if ( video_register_device( devradio, VFL_TYPE_RADIO , nr_radio) == -1 ) {
		kfree( devradio );
		goto err_video;
	}

	card->videodev = devradio;
	devradio->priv = card;
	gemtek_pci_mute( card );

	printk( KERN_INFO "Gemtek PCI Radio (rev. %d) found at 0x%04x-0x%04x.\n",
		pci_dev->revision, card->iobase, card->iobase + card->length - 1 );

	return 0;

err_video:
	release_region( card->iobase, card->length );

err_pci:
	kfree( card );
	return -ENODEV;
}

static void __devexit gemtek_pci_remove( struct pci_dev *pci_dev )
{
	struct gemtek_pci_card *card = pci_get_drvdata( pci_dev );

	video_unregister_device( card->videodev );
	kfree( card->videodev );

	release_region( card->iobase, card->length );

	if ( mx )
		gemtek_pci_mute( card );

	kfree( card );

	pci_set_drvdata( pci_dev, NULL );
}

static struct pci_driver gemtek_pci_driver =
{
	.name		= "gemtek_pci",
	.id_table	= gemtek_pci_id,
	.probe		= gemtek_pci_probe,
	.remove		= __devexit_p(gemtek_pci_remove),
};

static int __init gemtek_pci_init_module( void )
{
	return pci_register_driver( &gemtek_pci_driver );
}

static void __exit gemtek_pci_cleanup_module( void )
{
	pci_unregister_driver(&gemtek_pci_driver);
}

MODULE_AUTHOR( "Vladimir Shebordaev <vshebordaev@mail.ru>" );
MODULE_DESCRIPTION( "The video4linux driver for the Gemtek PCI Radio Card" );
MODULE_LICENSE("GPL");

module_param(mx, bool, 0);
MODULE_PARM_DESC( mx, "single digit: 1 - turn off the turner upon module exit (default), 0 - do not" );
module_param(nr_radio, int, 0);
MODULE_PARM_DESC( nr_radio, "video4linux device number to use");

module_init( gemtek_pci_init_module );
module_exit( gemtek_pci_cleanup_module );
Commit	Line	Data
1da177e4 LT	1	/*
1da177e4 LT	2	***************************************************************************
4286c6f6	3	*
1da177e4 LT	4	* radio-gemtek-pci.c - Gemtek PCI Radio driver
	5	* (C) 2001 Vladimir Shebordaev <vshebordaev@mail.ru>
	6	*
	7	***************************************************************************
	8	*
	9	* This program is free software; you can redistribute it and/or
	10	* modify it under the terms of the GNU General Public License as
	11	* published by the Free Software Foundation; either version 2 of
	12	* the License, or (at your option) any later version.
	13	*
	14	* This program is distributed in the hope that it will be useful,
	15	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	16	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	17	* GNU General Public License for more details.
	18	*
	19	* You should have received a copy of the GNU General Public
	20	* License along with this program; if not, write to the Free
	21	* Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139,
	22	* USA.
	23	*
	24	***************************************************************************
	25	*
	26	* Gemtek Corp still silently refuses to release any specifications
	27	* of their multimedia devices, so the protocol still has to be
	28	* reverse engineered.
	29	*
	30	* The v4l code was inspired by Jonas Munsin's Gemtek serial line
	31	* radio device driver.
	32	*
	33	* Please, let me know if this piece of code was useful :)
4286c6f6	34	*
1da177e4 LT	35	* TODO: multiple device support and portability were not tested
1da177e4 LT	36	*
52afbc2f MCC	37	* Converted to V4L2 API by Mauro Carvalho Chehab <mchehab@infradead.org>
52afbc2f MCC	38	*
1da177e4 LT	39	***************************************************************************
	40	*/
	41
1da177e4 LT	42	#include <linux/types.h>
	43	#include <linux/list.h>
	44	#include <linux/module.h>
	45	#include <linux/init.h>
	46	#include <linux/pci.h>
52afbc2f	47	#include <linux/videodev2.h>
5e87efa3	48	#include <media/v4l2-common.h>
1da177e4 LT	49	#include <linux/errno.h>
1da177e4 LT	50
52afbc2f MCC	51	#include <linux/version.h> /* for KERNEL_VERSION MACRO */
	52	#define RADIO_VERSION KERNEL_VERSION(0,0,2)
	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 = 65535,
	67	.step = 65535,
	68	.default_value = 0xff,
	69	.type = V4L2_CTRL_TYPE_INTEGER,
	70	}
	71	};
	72
1da177e4 LT	73	#include <asm/io.h>
	74	#include <asm/uaccess.h>
	75
	76	#ifndef PCI_VENDOR_ID_GEMTEK
	77	#define PCI_VENDOR_ID_GEMTEK 0x5046
	78	#endif
	79
	80	#ifndef PCI_DEVICE_ID_GEMTEK_PR103
	81	#define PCI_DEVICE_ID_GEMTEK_PR103 0x1001
	82	#endif
	83
	84	#ifndef GEMTEK_PCI_RANGE_LOW
	85	#define GEMTEK_PCI_RANGE_LOW (87*16000)
	86	#endif
	87
	88	#ifndef GEMTEK_PCI_RANGE_HIGH
	89	#define GEMTEK_PCI_RANGE_HIGH (108*16000)
	90	#endif
	91
1da177e4 LT	92	struct gemtek_pci_card {
1da177e4 LT	93	struct video_device *videodev;
4286c6f6	94
1da177e4 LT	95	u32 iobase;
1da177e4 LT	96	u32 length;
1da177e4	97	u16 model;
4286c6f6	98
1da177e4 LT	99	u32 current_frequency;
	100	u8 mute;
	101	};
	102
	103	static const char rcsid[] = "$Id: radio-gemtek-pci.c,v 1.1 2001/07/23 08:08:16 ted Exp ted $";
	104
	105	static int nr_radio = -1;
	106
	107	static inline u8 gemtek_pci_out( u16 value, u32 port )
	108	{
	109	outw( value, port );
	110
	111	return (u8)value;
	112	}
	113
4286c6f6	114	#define _b0( v ) ((u8 )&v)
1da177e4 LT	115	static void __gemtek_pci_cmd( u16 value, u32 port, u8 *last_byte, int keep )
	116	{
	117	register u8 byte = *last_byte;
	118
	119	if ( !value ) {
	120	if ( !keep )
	121	value = (u16)port;
4286c6f6	122	byte &= 0xfd;
1da177e4 LT	123	} else
	124	byte \|= 2;
	125
	126	_b0( value ) = byte;
	127	outw( value, port );
	128	byte \|= 1;
	129	_b0( value ) = byte;
	130	outw( value, port );
	131	byte &= 0xfe;
	132	_b0( value ) = byte;
	133	outw( value, port );
4286c6f6	134
1da177e4 LT	135	*last_byte = byte;
	136	}
	137
	138	static inline void gemtek_pci_nil( u32 port, u8 *last_byte )
	139	{
fd4bc445	140	__gemtek_pci_cmd( 0x00, port, last_byte, false );
1da177e4 LT	141	}
	142
	143	static inline void gemtek_pci_cmd( u16 cmd, u32 port, u8 *last_byte )
	144	{
fd4bc445	145	__gemtek_pci_cmd( cmd, port, last_byte, true );
1da177e4 LT	146	}
	147
	148	static void gemtek_pci_setfrequency( struct gemtek_pci_card *card, unsigned long frequency )
	149	{
	150	register int i;
	151	register u32 value = frequency / 200 + 856;
	152	register u16 mask = 0x8000;
	153	u8 last_byte;
	154	u32 port = card->iobase;
	155
	156	last_byte = gemtek_pci_out( 0x06, port );
	157
	158	i = 0;
	159	do {
	160	gemtek_pci_nil( port, &last_byte );
	161	i++;
	162	} while ( i < 9 );
	163
	164	i = 0;
	165	do {
	166	gemtek_pci_cmd( value & mask, port, &last_byte );
	167	mask >>= 1;
	168	i++;
	169	} while ( i < 16 );
	170
	171	outw( 0x10, port );
	172	}
	173
	174
	175	static inline void gemtek_pci_mute( struct gemtek_pci_card *card )
	176	{
	177	outb( 0x1f, card->iobase );
fd4bc445	178	card->mute = true;
1da177e4 LT	179	}
	180
	181	static inline void gemtek_pci_unmute( struct gemtek_pci_card *card )
	182	{
	183	if ( card->mute ) {
	184	gemtek_pci_setfrequency( card, card->current_frequency );
fd4bc445	185	card->mute = false;
1da177e4 LT	186	}
	187	}
	188
	189	static inline unsigned int gemtek_pci_getsignal( struct gemtek_pci_card *card )
	190	{
	191	return ( inb( card->iobase ) & 0x08 ) ? 0 : 1;
	192	}
	193
6f66446c DL	194	static int vidioc_querycap(struct file file, void priv,
	195	struct v4l2_capability *v)
	196	{
	197	strlcpy(v->driver, "radio-gemtek-pci", sizeof(v->driver));
	198	strlcpy(v->card, "GemTek PCI Radio", sizeof(v->card));
	199	sprintf(v->bus_info, "ISA");
	200	v->version = RADIO_VERSION;
	201	v->capabilities = V4L2_CAP_TUNER;
	202	return 0;
	203	}
	204
	205	static int vidioc_g_tuner(struct file file, void priv,
	206	struct v4l2_tuner *v)
1da177e4 LT	207	{
	208	struct video_device *dev = video_devdata(file);
	209	struct gemtek_pci_card *card = dev->priv;
	210
6f66446c DL	211	if (v->index > 0)
	212	return -EINVAL;
	213
	214	strcpy(v->name, "FM");
	215	v->type = V4L2_TUNER_RADIO;
	216	v->rangelow = GEMTEK_PCI_RANGE_LOW;
	217	v->rangehigh = GEMTEK_PCI_RANGE_HIGH;
	218	v->rxsubchans = V4L2_TUNER_SUB_MONO;
	219	v->capability = V4L2_TUNER_CAP_LOW;
	220	v->audmode = V4L2_TUNER_MODE_MONO;
	221	v->signal = 0xffff * gemtek_pci_getsignal(card);
	222	return 0;
	223	}
1da177e4	224
6f66446c DL	225	static int vidioc_s_tuner(struct file file, void priv,
	226	struct v4l2_tuner *v)
	227	{
	228	if (v->index > 0)
	229	return -EINVAL;
	230	return 0;
	231	}
1da177e4	232
6f66446c DL	233	static int vidioc_s_frequency(struct file file, void priv,
	234	struct v4l2_frequency *f)
	235	{
	236	struct video_device *dev = video_devdata(file);
	237	struct gemtek_pci_card *card = dev->priv;
52afbc2f	238
6f66446c DL	239	if ( (f->frequency < GEMTEK_PCI_RANGE_LOW) \|\|
	240	(f->frequency > GEMTEK_PCI_RANGE_HIGH) )
	241	return -EINVAL;
	242	gemtek_pci_setfrequency(card, f->frequency);
	243	card->current_frequency = f->frequency;
	244	card->mute = false;
	245	return 0;
	246	}
52afbc2f	247
6f66446c DL	248	static int vidioc_g_frequency(struct file file, void priv,
	249	struct v4l2_frequency *f)
	250	{
	251	struct video_device *dev = video_devdata(file);
	252	struct gemtek_pci_card *card = dev->priv;
52afbc2f	253
6f66446c DL	254	f->type = V4L2_TUNER_RADIO;
	255	f->frequency = card->current_frequency;
	256	return 0;
	257	}
1da177e4	258
6f66446c DL	259	static int vidioc_queryctrl(struct file file, void priv,
	260	struct v4l2_queryctrl *qc)
	261	{
	262	int i;
	263	for (i = 0; i < ARRAY_SIZE(radio_qctrl); i++) {
	264	if (qc->id && qc->id == radio_qctrl[i].id) {
	265	memcpy(qc, &(radio_qctrl[i]),
	266	sizeof(*qc));
1da177e4 LT	267	return 0;
1da177e4 LT	268	}
6f66446c DL	269	}
	270	return -EINVAL;
	271	}
	272
	273	static int vidioc_g_ctrl(struct file file, void priv,
	274	struct v4l2_control *ctrl)
	275	{
	276	struct video_device *dev = video_devdata(file);
	277	struct gemtek_pci_card *card = dev->priv;
4286c6f6	278
6f66446c DL	279	switch (ctrl->id) {
	280	case V4L2_CID_AUDIO_MUTE:
	281	ctrl->value = card->mute;
	282	return 0;
	283	case V4L2_CID_AUDIO_VOLUME:
	284	if (card->mute)
	285	ctrl->value = 0;
	286	else
	287	ctrl->value = 65535;
	288	return 0;
	289	}
	290	return -EINVAL;
	291	}
1da177e4	292
6f66446c DL	293	static int vidioc_s_ctrl(struct file file, void priv,
	294	struct v4l2_control *ctrl)
	295	{
	296	struct video_device *dev = video_devdata(file);
	297	struct gemtek_pci_card *card = dev->priv;
1da177e4	298
6f66446c DL	299	switch (ctrl->id) {
	300	case V4L2_CID_AUDIO_MUTE:
	301	if (ctrl->value)
	302	gemtek_pci_mute(card);
	303	else
	304	gemtek_pci_unmute(card);
	305	return 0;
	306	case V4L2_CID_AUDIO_VOLUME:
	307	if (ctrl->value)
	308	gemtek_pci_unmute(card);
	309	else
	310	gemtek_pci_mute(card);
	311	return 0;
1da177e4	312	}
6f66446c DL	313	return -EINVAL;
	314	}
	315
	316	static int vidioc_g_audio(struct file file, void priv,
	317	struct v4l2_audio *a)
	318	{
	319	if (a->index > 1)
	320	return -EINVAL;
	321
	322	strcpy(a->name, "Radio");
	323	a->capability = V4L2_AUDCAP_STEREO;
	324	return 0;
	325	}
	326
	327	static int vidioc_g_input(struct file filp, void priv, unsigned int *i)
	328	{
	329	*i = 0;
	330	return 0;
	331	}
	332
	333	static int vidioc_s_input(struct file filp, void priv, unsigned int i)
	334	{
	335	if (i != 0)
	336	return -EINVAL;
	337	return 0;
1da177e4 LT	338	}
1da177e4 LT	339
6f66446c DL	340	static int vidioc_s_audio(struct file file, void priv,
6f66446c DL	341	struct v4l2_audio *a)
1da177e4	342	{
6f66446c DL	343	if (a->index != 0)
	344	return -EINVAL;
	345	return 0;
1da177e4 LT	346	}
	347
	348	enum {
	349	GEMTEK_PR103
	350	};
	351
	352	static char *card_names[] __devinitdata = {
	353	"GEMTEK_PR103"
	354	};
	355
	356	static struct pci_device_id gemtek_pci_id[] =
	357	{
	358	{ PCI_VENDOR_ID_GEMTEK, PCI_DEVICE_ID_GEMTEK_PR103,
	359	PCI_ANY_ID, PCI_ANY_ID, 0, 0, GEMTEK_PR103 },
	360	{ 0 }
	361	};
	362
	363	MODULE_DEVICE_TABLE( pci, gemtek_pci_id );
	364
	365	static int mx = 1;
	366
fa027c2a	367	static const struct file_operations gemtek_pci_fops = {
1da177e4 LT	368	.owner = THIS_MODULE,
	369	.open = video_exclusive_open,
	370	.release = video_exclusive_release,
6f66446c	371	.ioctl = video_ioctl2,
0d0fbf81	372	.compat_ioctl = v4l_compat_ioctl32,
1da177e4 LT	373	.llseek = no_llseek,
	374	};
	375
	376	static struct video_device vdev_template = {
	377	.owner = THIS_MODULE,
	378	.name = "Gemtek PCI Radio",
	379	.type = VID_TYPE_TUNER,
52afbc2f	380	.hardware = 0,
1da177e4	381	.fops = &gemtek_pci_fops,
6f66446c DL	382	.vidioc_querycap = vidioc_querycap,
	383	.vidioc_g_tuner = vidioc_g_tuner,
	384	.vidioc_s_tuner = vidioc_s_tuner,
	385	.vidioc_g_audio = vidioc_g_audio,
	386	.vidioc_s_audio = vidioc_s_audio,
	387	.vidioc_g_input = vidioc_g_input,
	388	.vidioc_s_input = vidioc_s_input,
	389	.vidioc_g_frequency = vidioc_g_frequency,
	390	.vidioc_s_frequency = vidioc_s_frequency,
	391	.vidioc_queryctrl = vidioc_queryctrl,
	392	.vidioc_g_ctrl = vidioc_g_ctrl,
	393	.vidioc_s_ctrl = vidioc_s_ctrl,
1da177e4 LT	394	};
	395
	396	static int __devinit gemtek_pci_probe( struct pci_dev pci_dev, const struct pci_device_id pci_id )
	397	{
	398	struct gemtek_pci_card *card;
	399	struct video_device *devradio;
	400
7408187d	401	if ( (card = kzalloc( sizeof( struct gemtek_pci_card ), GFP_KERNEL )) == NULL ) {
1da177e4 LT	402	printk( KERN_ERR "gemtek_pci: out of memory\n" );
	403	return -ENOMEM;
	404	}
1da177e4	405
4286c6f6	406	if ( pci_enable_device( pci_dev ) )
1da177e4	407	goto err_pci;
4286c6f6	408
1da177e4 LT	409	card->iobase = pci_resource_start( pci_dev, 0 );
	410	card->length = pci_resource_len( pci_dev, 0 );
	411
	412	if ( request_region( card->iobase, card->length, card_names[pci_id->driver_data] ) == NULL ) {
	413	printk( KERN_ERR "gemtek_pci: i/o port already in use\n" );
	414	goto err_pci;
	415	}
	416
1da177e4 LT	417	pci_read_config_word( pci_dev, PCI_SUBSYSTEM_ID, &card->model );
	418
	419	pci_set_drvdata( pci_dev, card );
4286c6f6	420
1da177e4 LT	421	if ( (devradio = kmalloc( sizeof( struct video_device ), GFP_KERNEL )) == NULL ) {
	422	printk( KERN_ERR "gemtek_pci: out of memory\n" );
	423	goto err_video;
	424	}
	425	*devradio = vdev_template;
	426
	427	if ( video_register_device( devradio, VFL_TYPE_RADIO , nr_radio) == -1 ) {
	428	kfree( devradio );
	429	goto err_video;
	430	}
	431
	432	card->videodev = devradio;
	433	devradio->priv = card;
	434	gemtek_pci_mute( card );
	435
4286c6f6	436	printk( KERN_INFO "Gemtek PCI Radio (rev. %d) found at 0x%04x-0x%04x.\n",
44c10138	437	pci_dev->revision, card->iobase, card->iobase + card->length - 1 );
1da177e4 LT	438
	439	return 0;
	440
	441	err_video:
	442	release_region( card->iobase, card->length );
	443
	444	err_pci:
	445	kfree( card );
4286c6f6	446	return -ENODEV;
1da177e4 LT	447	}
	448
	449	static void __devexit gemtek_pci_remove( struct pci_dev *pci_dev )
	450	{
	451	struct gemtek_pci_card *card = pci_get_drvdata( pci_dev );
	452
	453	video_unregister_device( card->videodev );
	454	kfree( card->videodev );
	455
	456	release_region( card->iobase, card->length );
4286c6f6	457
1da177e4 LT	458	if ( mx )
	459	gemtek_pci_mute( card );
	460
	461	kfree( card );
4286c6f6	462
1da177e4 LT	463	pci_set_drvdata( pci_dev, NULL );
	464	}
	465
	466	static struct pci_driver gemtek_pci_driver =
	467	{
	468	.name = "gemtek_pci",
	469	.id_table = gemtek_pci_id,
	470	.probe = gemtek_pci_probe,
	471	.remove = __devexit_p(gemtek_pci_remove),
	472	};
	473
	474	static int __init gemtek_pci_init_module( void )
	475	{
9bfab8ce	476	return pci_register_driver( &gemtek_pci_driver );
1da177e4 LT	477	}
	478
	479	static void __exit gemtek_pci_cleanup_module( void )
	480	{
13962753	481	pci_unregister_driver(&gemtek_pci_driver);
1da177e4 LT	482	}
	483
	484	MODULE_AUTHOR( "Vladimir Shebordaev <vshebordaev@mail.ru>" );
	485	MODULE_DESCRIPTION( "The video4linux driver for the Gemtek PCI Radio Card" );
	486	MODULE_LICENSE("GPL");
	487
	488	module_param(mx, bool, 0);
	489	MODULE_PARM_DESC( mx, "single digit: 1 - turn off the turner upon module exit (default), 0 - do not" );
	490	module_param(nr_radio, int, 0);
	491	MODULE_PARM_DESC( nr_radio, "video4linux device number to use");
	492
	493	module_init( gemtek_pci_init_module );
	494	module_exit( gemtek_pci_cleanup_module );
	495