[deliverable/linux.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 <linux/errno.h>
#include <linux/version.h>      /* for KERNEL_VERSION MACRO     */
#include <linux/io.h>
#include <media/v4l2-device.h>
#include <media/v4l2-ioctl.h>

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

static int nr_radio = -1;
static int mx = 1;

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");

#define RADIO_VERSION KERNEL_VERSION(0, 0, 2)

#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 {
	struct v4l2_device v4l2_dev;
	struct video_device vdev;
	struct mutex lock;
	struct pci_dev *pdev;

	u32 iobase;
	u32 length;

	u32 current_frequency;
	u8  mute;
};

static inline struct gemtek_pci *to_gemtek_pci(struct v4l2_device *v4l2_dev)
{
	return container_of(v4l2_dev, struct gemtek_pci, v4l2_dev);
}

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)
{
	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, unsigned long frequency)
{
	int i;
	u32 value = frequency / 200 + 856;
	u16 mask = 0x8000;
	u8 last_byte;
	u32 port = card->iobase;

	mutex_lock(&card->lock);
	card->current_frequency = frequency;
	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);
	mutex_unlock(&card->lock);
}


static void gemtek_pci_mute(struct gemtek_pci *card)
{
	mutex_lock(&card->lock);
	outb(0x1f, card->iobase);
	card->mute = true;
	mutex_unlock(&card->lock);
}

static void gemtek_pci_unmute(struct gemtek_pci *card)
{
	mutex_lock(&card->lock);
	if (card->mute) {
		gemtek_pci_setfrequency(card, card->current_frequency);
		card->mute = false;
	}
	mutex_unlock(&card->lock);
}

static int gemtek_pci_getsignal(struct gemtek_pci *card)
{
	int sig;

	mutex_lock(&card->lock);
	sig = (inb(card->iobase) & 0x08) ? 0 : 1;
	mutex_unlock(&card->lock);
	return sig;
}

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

	strlcpy(v->driver, "radio-gemtek-pci", sizeof(v->driver));
	strlcpy(v->card, "GemTek PCI Radio", sizeof(v->card));
	snprintf(v->bus_info, sizeof(v->bus_info), "PCI:%s", pci_name(card->pdev));
	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 gemtek_pci *card = video_drvdata(file);

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

	strlcpy(v->name, "FM", sizeof(v->name));
	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)
{
	return v->index ? -EINVAL : 0;
}

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

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

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

	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)
{
	switch (qc->id) {
	case V4L2_CID_AUDIO_MUTE:
		return v4l2_ctrl_query_fill(qc, 0, 1, 1, 1);
	case V4L2_CID_AUDIO_VOLUME:
		return v4l2_ctrl_query_fill(qc, 0, 65535, 65535, 65535);
	}
	return -EINVAL;
}

static int vidioc_g_ctrl(struct file *file, void *priv,
					struct v4l2_control *ctrl)
{
	struct gemtek_pci *card = video_drvdata(file);

	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 gemtek_pci *card = video_drvdata(file);

	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_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;
}

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 const struct v4l2_file_operations gemtek_pci_fops = {
	.owner		= THIS_MODULE,
	.ioctl		= video_ioctl2,
};

static const struct v4l2_ioctl_ops gemtek_pci_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 int __devinit gemtek_pci_probe(struct pci_dev *pdev, const struct pci_device_id *pci_id)
{
	struct gemtek_pci *card;
	struct v4l2_device *v4l2_dev;
	int res;

	card = kzalloc(sizeof(struct gemtek_pci), GFP_KERNEL);
	if (card == NULL) {
		dev_err(&pdev->dev, "out of memory\n");
		return -ENOMEM;
	}

	v4l2_dev = &card->v4l2_dev;
	mutex_init(&card->lock);
	card->pdev = pdev;

	strlcpy(v4l2_dev->name, "gemtek_pci", sizeof(v4l2_dev->name));

	res = v4l2_device_register(&pdev->dev, v4l2_dev);
	if (res < 0) {
		v4l2_err(v4l2_dev, "Could not register v4l2_device\n");
		kfree(card);
		return res;
	}

	if (pci_enable_device(pdev))
		goto err_pci;

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

	if (request_region(card->iobase, card->length, card_names[pci_id->driver_data]) == NULL) {
		v4l2_err(v4l2_dev, "i/o port already in use\n");
		goto err_pci;
	}

	strlcpy(card->vdev.name, v4l2_dev->name, sizeof(card->vdev.name));
	card->vdev.v4l2_dev = v4l2_dev;
	card->vdev.fops = &gemtek_pci_fops;
	card->vdev.ioctl_ops = &gemtek_pci_ioctl_ops;
	card->vdev.release = video_device_release_empty;
	video_set_drvdata(&card->vdev, card);

	if (video_register_device(&card->vdev, VFL_TYPE_RADIO, nr_radio) < 0)
		goto err_video;

	gemtek_pci_mute(card);

	v4l2_info(v4l2_dev, "Gemtek PCI Radio (rev. %d) found at 0x%04x-0x%04x.\n",
		pdev->revision, card->iobase, card->iobase + card->length - 1);

	return 0;

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

err_pci:
	v4l2_device_unregister(v4l2_dev);
	kfree(card);
	return -ENODEV;
}

static void __devexit gemtek_pci_remove(struct pci_dev *pdev)
{
	struct v4l2_device *v4l2_dev = dev_get_drvdata(&pdev->dev);
	struct gemtek_pci *card = to_gemtek_pci(v4l2_dev);

	video_unregister_device(&card->vdev);
	v4l2_device_unregister(v4l2_dev);

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

	if (mx)
		gemtek_pci_mute(card);

	kfree(card);
}

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(void)
{
	return pci_register_driver(&gemtek_pci_driver);
}

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

module_init(gemtek_pci_init);
module_exit(gemtek_pci_exit);
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>
1da177e4	48	#include <linux/errno.h>
52afbc2f	49	#include <linux/version.h> /* for KERNEL_VERSION MACRO */
79f94878	50	#include <linux/io.h>
79f94878 HV	51	#include <media/v4l2-device.h>
79f94878 HV	52	#include <media/v4l2-ioctl.h>
52afbc2f	53
79f94878 HV	54	MODULE_AUTHOR("Vladimir Shebordaev <vshebordaev@mail.ru>");
	55	MODULE_DESCRIPTION("The video4linux driver for the Gemtek PCI Radio Card");
	56	MODULE_LICENSE("GPL");
	57
	58	static int nr_radio = -1;
	59	static int mx = 1;
	60
	61	module_param(mx, bool, 0);
	62	MODULE_PARM_DESC(mx, "single digit: 1 - turn off the turner upon module exit (default), 0 - do not");
	63	module_param(nr_radio, int, 0);
	64	MODULE_PARM_DESC(nr_radio, "video4linux device number to use");
	65
	66	#define RADIO_VERSION KERNEL_VERSION(0, 0, 2)
1da177e4 LT	67
	68	#ifndef PCI_VENDOR_ID_GEMTEK
	69	#define PCI_VENDOR_ID_GEMTEK 0x5046
	70	#endif
	71
	72	#ifndef PCI_DEVICE_ID_GEMTEK_PR103
	73	#define PCI_DEVICE_ID_GEMTEK_PR103 0x1001
	74	#endif
	75
	76	#ifndef GEMTEK_PCI_RANGE_LOW
	77	#define GEMTEK_PCI_RANGE_LOW (87*16000)
	78	#endif
	79
	80	#ifndef GEMTEK_PCI_RANGE_HIGH
	81	#define GEMTEK_PCI_RANGE_HIGH (108*16000)
	82	#endif
	83
79f94878 HV	84	struct gemtek_pci {
	85	struct v4l2_device v4l2_dev;
	86	struct video_device vdev;
	87	struct mutex lock;
	88	struct pci_dev *pdev;
4286c6f6	89
1da177e4 LT	90	u32 iobase;
1da177e4 LT	91	u32 length;
4286c6f6	92
1da177e4 LT	93	u32 current_frequency;
	94	u8 mute;
	95	};
	96
79f94878 HV	97	static inline struct gemtek_pci to_gemtek_pci(struct v4l2_device v4l2_dev)
	98	{
	99	return container_of(v4l2_dev, struct gemtek_pci, v4l2_dev);
	100	}
1da177e4	101
79f94878	102	static inline u8 gemtek_pci_out(u16 value, u32 port)
1da177e4	103	{
79f94878	104	outw(value, port);
1da177e4 LT	105
	106	return (u8)value;
	107	}
	108
79f94878 HV	109	#define _b0(v) (((u8 )&v))
	110
	111	static void __gemtek_pci_cmd(u16 value, u32 port, u8 *last_byte, int keep)
1da177e4	112	{
79f94878	113	u8 byte = *last_byte;
1da177e4	114
79f94878 HV	115	if (!value) {
79f94878 HV	116	if (!keep)
1da177e4	117	value = (u16)port;
4286c6f6	118	byte &= 0xfd;
1da177e4 LT	119	} else
	120	byte \|= 2;
	121
79f94878 HV	122	_b0(value) = byte;
79f94878 HV	123	outw(value, port);
1da177e4	124	byte \|= 1;
79f94878 HV	125	_b0(value) = byte;
79f94878 HV	126	outw(value, port);
1da177e4	127	byte &= 0xfe;
79f94878 HV	128	_b0(value) = byte;
79f94878 HV	129	outw(value, port);
4286c6f6	130
1da177e4 LT	131	*last_byte = byte;
	132	}
	133
79f94878	134	static inline void gemtek_pci_nil(u32 port, u8 *last_byte)
1da177e4	135	{
79f94878	136	__gemtek_pci_cmd(0x00, port, last_byte, false);
1da177e4 LT	137	}
1da177e4 LT	138
79f94878	139	static inline void gemtek_pci_cmd(u16 cmd, u32 port, u8 *last_byte)
1da177e4	140	{
79f94878	141	__gemtek_pci_cmd(cmd, port, last_byte, true);
1da177e4 LT	142	}
1da177e4 LT	143
79f94878	144	static void gemtek_pci_setfrequency(struct gemtek_pci *card, unsigned long frequency)
1da177e4	145	{
79f94878 HV	146	int i;
	147	u32 value = frequency / 200 + 856;
	148	u16 mask = 0x8000;
1da177e4 LT	149	u8 last_byte;
	150	u32 port = card->iobase;
	151
79f94878 HV	152	mutex_lock(&card->lock);
	153	card->current_frequency = frequency;
	154	last_byte = gemtek_pci_out(0x06, port);
1da177e4 LT	155
	156	i = 0;
	157	do {
79f94878	158	gemtek_pci_nil(port, &last_byte);
1da177e4	159	i++;
79f94878	160	} while (i < 9);
1da177e4 LT	161
	162	i = 0;
	163	do {
79f94878	164	gemtek_pci_cmd(value & mask, port, &last_byte);
1da177e4 LT	165	mask >>= 1;
1da177e4 LT	166	i++;
79f94878	167	} while (i < 16);
1da177e4	168
79f94878 HV	169	outw(0x10, port);
79f94878 HV	170	mutex_unlock(&card->lock);
1da177e4 LT	171	}
	172
	173
79f94878	174	static void gemtek_pci_mute(struct gemtek_pci *card)
1da177e4	175	{
79f94878 HV	176	mutex_lock(&card->lock);
79f94878 HV	177	outb(0x1f, card->iobase);
fd4bc445	178	card->mute = true;
79f94878	179	mutex_unlock(&card->lock);
1da177e4 LT	180	}
1da177e4 LT	181
79f94878	182	static void gemtek_pci_unmute(struct gemtek_pci *card)
1da177e4	183	{
79f94878 HV	184	mutex_lock(&card->lock);
	185	if (card->mute) {
	186	gemtek_pci_setfrequency(card, card->current_frequency);
fd4bc445	187	card->mute = false;
1da177e4	188	}
79f94878	189	mutex_unlock(&card->lock);
1da177e4 LT	190	}
1da177e4 LT	191
79f94878	192	static int gemtek_pci_getsignal(struct gemtek_pci *card)
1da177e4	193	{
79f94878 HV	194	int sig;
	195
	196	mutex_lock(&card->lock);
	197	sig = (inb(card->iobase) & 0x08) ? 0 : 1;
	198	mutex_unlock(&card->lock);
	199	return sig;
1da177e4 LT	200	}
1da177e4 LT	201
6f66446c DL	202	static int vidioc_querycap(struct file file, void priv,
	203	struct v4l2_capability *v)
	204	{
79f94878 HV	205	struct gemtek_pci *card = video_drvdata(file);
79f94878 HV	206
6f66446c DL	207	strlcpy(v->driver, "radio-gemtek-pci", sizeof(v->driver));
6f66446c DL	208	strlcpy(v->card, "GemTek PCI Radio", sizeof(v->card));
79f94878	209	snprintf(v->bus_info, sizeof(v->bus_info), "PCI:%s", pci_name(card->pdev));
6f66446c	210	v->version = RADIO_VERSION;
79f94878	211	v->capabilities = V4L2_CAP_TUNER \| V4L2_CAP_RADIO;
6f66446c DL	212	return 0;
	213	}
	214
	215	static int vidioc_g_tuner(struct file file, void priv,
	216	struct v4l2_tuner *v)
1da177e4	217	{
79f94878	218	struct gemtek_pci *card = video_drvdata(file);
1da177e4	219
6f66446c DL	220	if (v->index > 0)
	221	return -EINVAL;
	222
79f94878	223	strlcpy(v->name, "FM", sizeof(v->name));
6f66446c DL	224	v->type = V4L2_TUNER_RADIO;
	225	v->rangelow = GEMTEK_PCI_RANGE_LOW;
	226	v->rangehigh = GEMTEK_PCI_RANGE_HIGH;
	227	v->rxsubchans = V4L2_TUNER_SUB_MONO;
	228	v->capability = V4L2_TUNER_CAP_LOW;
	229	v->audmode = V4L2_TUNER_MODE_MONO;
	230	v->signal = 0xffff * gemtek_pci_getsignal(card);
	231	return 0;
	232	}
1da177e4	233
6f66446c DL	234	static int vidioc_s_tuner(struct file file, void priv,
	235	struct v4l2_tuner *v)
	236	{
79f94878	237	return v->index ? -EINVAL : 0;
6f66446c	238	}
1da177e4	239
6f66446c DL	240	static int vidioc_s_frequency(struct file file, void priv,
	241	struct v4l2_frequency *f)
	242	{
79f94878	243	struct gemtek_pci *card = video_drvdata(file);
52afbc2f	244
79f94878 HV	245	if (f->frequency < GEMTEK_PCI_RANGE_LOW \|\|
79f94878 HV	246	f->frequency > GEMTEK_PCI_RANGE_HIGH)
6f66446c DL	247	return -EINVAL;
6f66446c DL	248	gemtek_pci_setfrequency(card, f->frequency);
6f66446c DL	249	card->mute = false;
	250	return 0;
	251	}
52afbc2f	252
6f66446c DL	253	static int vidioc_g_frequency(struct file file, void priv,
	254	struct v4l2_frequency *f)
	255	{
79f94878	256	struct gemtek_pci *card = video_drvdata(file);
52afbc2f	257
6f66446c DL	258	f->type = V4L2_TUNER_RADIO;
	259	f->frequency = card->current_frequency;
	260	return 0;
	261	}
1da177e4	262
6f66446c DL	263	static int vidioc_queryctrl(struct file file, void priv,
	264	struct v4l2_queryctrl *qc)
	265	{
79f94878 HV	266	switch (qc->id) {
	267	case V4L2_CID_AUDIO_MUTE:
	268	return v4l2_ctrl_query_fill(qc, 0, 1, 1, 1);
	269	case V4L2_CID_AUDIO_VOLUME:
	270	return v4l2_ctrl_query_fill(qc, 0, 65535, 65535, 65535);
6f66446c DL	271	}
	272	return -EINVAL;
	273	}
	274
	275	static int vidioc_g_ctrl(struct file file, void priv,
	276	struct v4l2_control *ctrl)
	277	{
79f94878	278	struct gemtek_pci *card = video_drvdata(file);
4286c6f6	279
6f66446c DL	280	switch (ctrl->id) {
	281	case V4L2_CID_AUDIO_MUTE:
	282	ctrl->value = card->mute;
	283	return 0;
	284	case V4L2_CID_AUDIO_VOLUME:
	285	if (card->mute)
	286	ctrl->value = 0;
	287	else
	288	ctrl->value = 65535;
	289	return 0;
	290	}
	291	return -EINVAL;
	292	}
1da177e4	293
6f66446c DL	294	static int vidioc_s_ctrl(struct file file, void priv,
	295	struct v4l2_control *ctrl)
	296	{
79f94878	297	struct gemtek_pci *card = video_drvdata(file);
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
6f66446c DL	316	static int vidioc_g_input(struct file filp, void priv, unsigned int *i)
	317	{
	318	*i = 0;
	319	return 0;
	320	}
	321
	322	static int vidioc_s_input(struct file filp, void priv, unsigned int i)
	323	{
79f94878 HV	324	return i ? -EINVAL : 0;
	325	}
	326
	327	static int vidioc_g_audio(struct file file, void priv,
	328	struct v4l2_audio *a)
	329	{
	330	a->index = 0;
	331	strlcpy(a->name, "Radio", sizeof(a->name));
	332	a->capability = V4L2_AUDCAP_STEREO;
6f66446c	333	return 0;
1da177e4 LT	334	}
1da177e4 LT	335
6f66446c DL	336	static int vidioc_s_audio(struct file file, void priv,
6f66446c DL	337	struct v4l2_audio *a)
1da177e4	338	{
79f94878	339	return a->index ? -EINVAL : 0;
1da177e4 LT	340	}
	341
	342	enum {
	343	GEMTEK_PR103
	344	};
	345
	346	static char *card_names[] __devinitdata = {
	347	"GEMTEK_PR103"
	348	};
	349
	350	static struct pci_device_id gemtek_pci_id[] =
	351	{
	352	{ PCI_VENDOR_ID_GEMTEK, PCI_DEVICE_ID_GEMTEK_PR103,
	353	PCI_ANY_ID, PCI_ANY_ID, 0, 0, GEMTEK_PR103 },
	354	{ 0 }
	355	};
	356
79f94878	357	MODULE_DEVICE_TABLE(pci, gemtek_pci_id);
1da177e4	358
bec43661	359	static const struct v4l2_file_operations gemtek_pci_fops = {
1da177e4	360	.owner = THIS_MODULE,
6f66446c	361	.ioctl = video_ioctl2,
1da177e4 LT	362	};
1da177e4 LT	363
a399810c	364	static const struct v4l2_ioctl_ops gemtek_pci_ioctl_ops = {
6f66446c DL	365	.vidioc_querycap = vidioc_querycap,
	366	.vidioc_g_tuner = vidioc_g_tuner,
	367	.vidioc_s_tuner = vidioc_s_tuner,
	368	.vidioc_g_audio = vidioc_g_audio,
	369	.vidioc_s_audio = vidioc_s_audio,
	370	.vidioc_g_input = vidioc_g_input,
	371	.vidioc_s_input = vidioc_s_input,
	372	.vidioc_g_frequency = vidioc_g_frequency,
	373	.vidioc_s_frequency = vidioc_s_frequency,
	374	.vidioc_queryctrl = vidioc_queryctrl,
	375	.vidioc_g_ctrl = vidioc_g_ctrl,
	376	.vidioc_s_ctrl = vidioc_s_ctrl,
1da177e4 LT	377	};
1da177e4 LT	378
79f94878	379	static int __devinit gemtek_pci_probe(struct pci_dev pdev, const struct pci_device_id pci_id)
1da177e4	380	{
79f94878 HV	381	struct gemtek_pci *card;
	382	struct v4l2_device *v4l2_dev;
	383	int res;
1da177e4	384
79f94878 HV	385	card = kzalloc(sizeof(struct gemtek_pci), GFP_KERNEL);
	386	if (card == NULL) {
	387	dev_err(&pdev->dev, "out of memory\n");
1da177e4 LT	388	return -ENOMEM;
1da177e4 LT	389	}
1da177e4	390
79f94878 HV	391	v4l2_dev = &card->v4l2_dev;
	392	mutex_init(&card->lock);
	393	card->pdev = pdev;
4286c6f6	394
79f94878	395	strlcpy(v4l2_dev->name, "gemtek_pci", sizeof(v4l2_dev->name));
1da177e4	396
79f94878 HV	397	res = v4l2_device_register(&pdev->dev, v4l2_dev);
	398	if (res < 0) {
	399	v4l2_err(v4l2_dev, "Could not register v4l2_device\n");
	400	kfree(card);
	401	return res;
1da177e4 LT	402	}
1da177e4 LT	403
79f94878 HV	404	if (pci_enable_device(pdev))
79f94878 HV	405	goto err_pci;
4286c6f6	406
79f94878 HV	407	card->iobase = pci_resource_start(pdev, 0);
	408	card->length = pci_resource_len(pdev, 0);
	409
	410	if (request_region(card->iobase, card->length, card_names[pci_id->driver_data]) == NULL) {
	411	v4l2_err(v4l2_dev, "i/o port already in use\n");
	412	goto err_pci;
1da177e4	413	}
1da177e4	414
79f94878 HV	415	strlcpy(card->vdev.name, v4l2_dev->name, sizeof(card->vdev.name));
	416	card->vdev.v4l2_dev = v4l2_dev;
	417	card->vdev.fops = &gemtek_pci_fops;
	418	card->vdev.ioctl_ops = &gemtek_pci_ioctl_ops;
	419	card->vdev.release = video_device_release_empty;
	420	video_set_drvdata(&card->vdev, card);
	421
	422	if (video_register_device(&card->vdev, VFL_TYPE_RADIO, nr_radio) < 0)
1da177e4	423	goto err_video;
1da177e4	424
79f94878	425	gemtek_pci_mute(card);
1da177e4	426
79f94878 HV	427	v4l2_info(v4l2_dev, "Gemtek PCI Radio (rev. %d) found at 0x%04x-0x%04x.\n",
79f94878 HV	428	pdev->revision, card->iobase, card->iobase + card->length - 1);
1da177e4 LT	429
	430	return 0;
	431
	432	err_video:
79f94878	433	release_region(card->iobase, card->length);
1da177e4 LT	434
1da177e4 LT	435	err_pci:
79f94878 HV	436	v4l2_device_unregister(v4l2_dev);
79f94878 HV	437	kfree(card);
4286c6f6	438	return -ENODEV;
1da177e4 LT	439	}
1da177e4 LT	440
79f94878	441	static void __devexit gemtek_pci_remove(struct pci_dev *pdev)
1da177e4	442	{
79f94878 HV	443	struct v4l2_device *v4l2_dev = dev_get_drvdata(&pdev->dev);
79f94878 HV	444	struct gemtek_pci *card = to_gemtek_pci(v4l2_dev);
1da177e4	445
79f94878 HV	446	video_unregister_device(&card->vdev);
79f94878 HV	447	v4l2_device_unregister(v4l2_dev);
1da177e4	448
79f94878	449	release_region(card->iobase, card->length);
4286c6f6	450
79f94878 HV	451	if (mx)
79f94878 HV	452	gemtek_pci_mute(card);
1da177e4	453
79f94878	454	kfree(card);
1da177e4 LT	455	}
1da177e4 LT	456
79f94878	457	static struct pci_driver gemtek_pci_driver = {
1da177e4 LT	458	.name = "gemtek_pci",
	459	.id_table = gemtek_pci_id,
	460	.probe = gemtek_pci_probe,
	461	.remove = __devexit_p(gemtek_pci_remove),
	462	};
	463
79f94878	464	static int __init gemtek_pci_init(void)
1da177e4	465	{
79f94878	466	return pci_register_driver(&gemtek_pci_driver);
1da177e4 LT	467	}
1da177e4 LT	468
79f94878	469	static void __exit gemtek_pci_exit(void)
1da177e4	470	{
13962753	471	pci_unregister_driver(&gemtek_pci_driver);
1da177e4 LT	472	}
1da177e4 LT	473
79f94878 HV	474	module_init(gemtek_pci_init);
79f94878 HV	475	module_exit(gemtek_pci_exit);