[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 <linux/uaccess.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 int gemtek_pci_open(struct file *file)
{
	return 0;
}

static int gemtek_pci_release(struct file *file)
{
	return 0;
}

static const struct v4l2_file_operations gemtek_pci_fops = {
	.owner		= THIS_MODULE,
	.open           = gemtek_pci_open,
	.release        = gemtek_pci_release,
	.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 HV	50	#include <linux/io.h>
	51	#include <linux/uaccess.h>
	52	#include <media/v4l2-device.h>
	53	#include <media/v4l2-ioctl.h>
52afbc2f	54
79f94878 HV	55	MODULE_AUTHOR("Vladimir Shebordaev <vshebordaev@mail.ru>");
	56	MODULE_DESCRIPTION("The video4linux driver for the Gemtek PCI Radio Card");
	57	MODULE_LICENSE("GPL");
	58
	59	static int nr_radio = -1;
	60	static int mx = 1;
	61
	62	module_param(mx, bool, 0);
	63	MODULE_PARM_DESC(mx, "single digit: 1 - turn off the turner upon module exit (default), 0 - do not");
	64	module_param(nr_radio, int, 0);
	65	MODULE_PARM_DESC(nr_radio, "video4linux device number to use");
	66
	67	#define RADIO_VERSION KERNEL_VERSION(0, 0, 2)
1da177e4 LT	68
	69	#ifndef PCI_VENDOR_ID_GEMTEK
	70	#define PCI_VENDOR_ID_GEMTEK 0x5046
	71	#endif
	72
	73	#ifndef PCI_DEVICE_ID_GEMTEK_PR103
	74	#define PCI_DEVICE_ID_GEMTEK_PR103 0x1001
	75	#endif
	76
	77	#ifndef GEMTEK_PCI_RANGE_LOW
	78	#define GEMTEK_PCI_RANGE_LOW (87*16000)
	79	#endif
	80
	81	#ifndef GEMTEK_PCI_RANGE_HIGH
	82	#define GEMTEK_PCI_RANGE_HIGH (108*16000)
	83	#endif
	84
79f94878 HV	85	struct gemtek_pci {
	86	struct v4l2_device v4l2_dev;
	87	struct video_device vdev;
	88	struct mutex lock;
	89	struct pci_dev *pdev;
4286c6f6	90
1da177e4 LT	91	u32 iobase;
1da177e4 LT	92	u32 length;
4286c6f6	93
1da177e4 LT	94	u32 current_frequency;
	95	u8 mute;
	96	};
	97
79f94878 HV	98	static inline struct gemtek_pci to_gemtek_pci(struct v4l2_device v4l2_dev)
	99	{
	100	return container_of(v4l2_dev, struct gemtek_pci, v4l2_dev);
	101	}
1da177e4	102
79f94878	103	static inline u8 gemtek_pci_out(u16 value, u32 port)
1da177e4	104	{
79f94878	105	outw(value, port);
1da177e4 LT	106
	107	return (u8)value;
	108	}
	109
79f94878 HV	110	#define _b0(v) (((u8 )&v))
	111
	112	static void __gemtek_pci_cmd(u16 value, u32 port, u8 *last_byte, int keep)
1da177e4	113	{
79f94878	114	u8 byte = *last_byte;
1da177e4	115
79f94878 HV	116	if (!value) {
79f94878 HV	117	if (!keep)
1da177e4	118	value = (u16)port;
4286c6f6	119	byte &= 0xfd;
1da177e4 LT	120	} else
	121	byte \|= 2;
	122
79f94878 HV	123	_b0(value) = byte;
79f94878 HV	124	outw(value, port);
1da177e4	125	byte \|= 1;
79f94878 HV	126	_b0(value) = byte;
79f94878 HV	127	outw(value, port);
1da177e4	128	byte &= 0xfe;
79f94878 HV	129	_b0(value) = byte;
79f94878 HV	130	outw(value, port);
4286c6f6	131
1da177e4 LT	132	*last_byte = byte;
	133	}
	134
79f94878	135	static inline void gemtek_pci_nil(u32 port, u8 *last_byte)
1da177e4	136	{
79f94878	137	__gemtek_pci_cmd(0x00, port, last_byte, false);
1da177e4 LT	138	}
1da177e4 LT	139
79f94878	140	static inline void gemtek_pci_cmd(u16 cmd, u32 port, u8 *last_byte)
1da177e4	141	{
79f94878	142	__gemtek_pci_cmd(cmd, port, last_byte, true);
1da177e4 LT	143	}
1da177e4 LT	144
79f94878	145	static void gemtek_pci_setfrequency(struct gemtek_pci *card, unsigned long frequency)
1da177e4	146	{
79f94878 HV	147	int i;
	148	u32 value = frequency / 200 + 856;
	149	u16 mask = 0x8000;
1da177e4 LT	150	u8 last_byte;
	151	u32 port = card->iobase;
	152
79f94878 HV	153	mutex_lock(&card->lock);
	154	card->current_frequency = frequency;
	155	last_byte = gemtek_pci_out(0x06, port);
1da177e4 LT	156
	157	i = 0;
	158	do {
79f94878	159	gemtek_pci_nil(port, &last_byte);
1da177e4	160	i++;
79f94878	161	} while (i < 9);
1da177e4 LT	162
	163	i = 0;
	164	do {
79f94878	165	gemtek_pci_cmd(value & mask, port, &last_byte);
1da177e4 LT	166	mask >>= 1;
1da177e4 LT	167	i++;
79f94878	168	} while (i < 16);
1da177e4	169
79f94878 HV	170	outw(0x10, port);
79f94878 HV	171	mutex_unlock(&card->lock);
1da177e4 LT	172	}
	173
	174
79f94878	175	static void gemtek_pci_mute(struct gemtek_pci *card)
1da177e4	176	{
79f94878 HV	177	mutex_lock(&card->lock);
79f94878 HV	178	outb(0x1f, card->iobase);
fd4bc445	179	card->mute = true;
79f94878	180	mutex_unlock(&card->lock);
1da177e4 LT	181	}
1da177e4 LT	182
79f94878	183	static void gemtek_pci_unmute(struct gemtek_pci *card)
1da177e4	184	{
79f94878 HV	185	mutex_lock(&card->lock);
	186	if (card->mute) {
	187	gemtek_pci_setfrequency(card, card->current_frequency);
fd4bc445	188	card->mute = false;
1da177e4	189	}
79f94878	190	mutex_unlock(&card->lock);
1da177e4 LT	191	}
1da177e4 LT	192
79f94878	193	static int gemtek_pci_getsignal(struct gemtek_pci *card)
1da177e4	194	{
79f94878 HV	195	int sig;
	196
	197	mutex_lock(&card->lock);
	198	sig = (inb(card->iobase) & 0x08) ? 0 : 1;
	199	mutex_unlock(&card->lock);
	200	return sig;
1da177e4 LT	201	}
1da177e4 LT	202
6f66446c DL	203	static int vidioc_querycap(struct file file, void priv,
	204	struct v4l2_capability *v)
	205	{
79f94878 HV	206	struct gemtek_pci *card = video_drvdata(file);
79f94878 HV	207
6f66446c DL	208	strlcpy(v->driver, "radio-gemtek-pci", sizeof(v->driver));
6f66446c DL	209	strlcpy(v->card, "GemTek PCI Radio", sizeof(v->card));
79f94878	210	snprintf(v->bus_info, sizeof(v->bus_info), "PCI:%s", pci_name(card->pdev));
6f66446c	211	v->version = RADIO_VERSION;
79f94878	212	v->capabilities = V4L2_CAP_TUNER \| V4L2_CAP_RADIO;
6f66446c DL	213	return 0;
	214	}
	215
	216	static int vidioc_g_tuner(struct file file, void priv,
	217	struct v4l2_tuner *v)
1da177e4	218	{
79f94878	219	struct gemtek_pci *card = video_drvdata(file);
1da177e4	220
6f66446c DL	221	if (v->index > 0)
	222	return -EINVAL;
	223
79f94878	224	strlcpy(v->name, "FM", sizeof(v->name));
6f66446c DL	225	v->type = V4L2_TUNER_RADIO;
	226	v->rangelow = GEMTEK_PCI_RANGE_LOW;
	227	v->rangehigh = GEMTEK_PCI_RANGE_HIGH;
	228	v->rxsubchans = V4L2_TUNER_SUB_MONO;
	229	v->capability = V4L2_TUNER_CAP_LOW;
	230	v->audmode = V4L2_TUNER_MODE_MONO;
	231	v->signal = 0xffff * gemtek_pci_getsignal(card);
	232	return 0;
	233	}
1da177e4	234
6f66446c DL	235	static int vidioc_s_tuner(struct file file, void priv,
	236	struct v4l2_tuner *v)
	237	{
79f94878	238	return v->index ? -EINVAL : 0;
6f66446c	239	}
1da177e4	240
6f66446c DL	241	static int vidioc_s_frequency(struct file file, void priv,
	242	struct v4l2_frequency *f)
	243	{
79f94878	244	struct gemtek_pci *card = video_drvdata(file);
52afbc2f	245
79f94878 HV	246	if (f->frequency < GEMTEK_PCI_RANGE_LOW \|\|
79f94878 HV	247	f->frequency > GEMTEK_PCI_RANGE_HIGH)
6f66446c DL	248	return -EINVAL;
6f66446c DL	249	gemtek_pci_setfrequency(card, f->frequency);
6f66446c DL	250	card->mute = false;
	251	return 0;
	252	}
52afbc2f	253
6f66446c DL	254	static int vidioc_g_frequency(struct file file, void priv,
	255	struct v4l2_frequency *f)
	256	{
79f94878	257	struct gemtek_pci *card = video_drvdata(file);
52afbc2f	258
6f66446c DL	259	f->type = V4L2_TUNER_RADIO;
	260	f->frequency = card->current_frequency;
	261	return 0;
	262	}
1da177e4	263
6f66446c DL	264	static int vidioc_queryctrl(struct file file, void priv,
	265	struct v4l2_queryctrl *qc)
	266	{
79f94878 HV	267	switch (qc->id) {
	268	case V4L2_CID_AUDIO_MUTE:
	269	return v4l2_ctrl_query_fill(qc, 0, 1, 1, 1);
	270	case V4L2_CID_AUDIO_VOLUME:
	271	return v4l2_ctrl_query_fill(qc, 0, 65535, 65535, 65535);
6f66446c DL	272	}
	273	return -EINVAL;
	274	}
	275
	276	static int vidioc_g_ctrl(struct file file, void priv,
	277	struct v4l2_control *ctrl)
	278	{
79f94878	279	struct gemtek_pci *card = video_drvdata(file);
4286c6f6	280
6f66446c DL	281	switch (ctrl->id) {
	282	case V4L2_CID_AUDIO_MUTE:
	283	ctrl->value = card->mute;
	284	return 0;
	285	case V4L2_CID_AUDIO_VOLUME:
	286	if (card->mute)
	287	ctrl->value = 0;
	288	else
	289	ctrl->value = 65535;
	290	return 0;
	291	}
	292	return -EINVAL;
	293	}
1da177e4	294
6f66446c DL	295	static int vidioc_s_ctrl(struct file file, void priv,
	296	struct v4l2_control *ctrl)
	297	{
79f94878	298	struct gemtek_pci *card = video_drvdata(file);
1da177e4	299
6f66446c DL	300	switch (ctrl->id) {
	301	case V4L2_CID_AUDIO_MUTE:
	302	if (ctrl->value)
	303	gemtek_pci_mute(card);
	304	else
	305	gemtek_pci_unmute(card);
	306	return 0;
	307	case V4L2_CID_AUDIO_VOLUME:
	308	if (ctrl->value)
	309	gemtek_pci_unmute(card);
	310	else
	311	gemtek_pci_mute(card);
	312	return 0;
1da177e4	313	}
6f66446c DL	314	return -EINVAL;
	315	}
	316
6f66446c DL	317	static int vidioc_g_input(struct file filp, void priv, unsigned int *i)
	318	{
	319	*i = 0;
	320	return 0;
	321	}
	322
	323	static int vidioc_s_input(struct file filp, void priv, unsigned int i)
	324	{
79f94878 HV	325	return i ? -EINVAL : 0;
	326	}
	327
	328	static int vidioc_g_audio(struct file file, void priv,
	329	struct v4l2_audio *a)
	330	{
	331	a->index = 0;
	332	strlcpy(a->name, "Radio", sizeof(a->name));
	333	a->capability = V4L2_AUDCAP_STEREO;
6f66446c	334	return 0;
1da177e4 LT	335	}
1da177e4 LT	336
6f66446c DL	337	static int vidioc_s_audio(struct file file, void priv,
6f66446c DL	338	struct v4l2_audio *a)
1da177e4	339	{
79f94878	340	return a->index ? -EINVAL : 0;
1da177e4 LT	341	}
	342
	343	enum {
	344	GEMTEK_PR103
	345	};
	346
	347	static char *card_names[] __devinitdata = {
	348	"GEMTEK_PR103"
	349	};
	350
	351	static struct pci_device_id gemtek_pci_id[] =
	352	{
	353	{ PCI_VENDOR_ID_GEMTEK, PCI_DEVICE_ID_GEMTEK_PR103,
	354	PCI_ANY_ID, PCI_ANY_ID, 0, 0, GEMTEK_PR103 },
	355	{ 0 }
	356	};
	357
79f94878	358	MODULE_DEVICE_TABLE(pci, gemtek_pci_id);
1da177e4	359
79f94878	360	static int gemtek_pci_open(struct file *file)
3ca685aa	361	{
79f94878	362	return 0;
3ca685aa HV	363	}
3ca685aa HV	364
79f94878	365	static int gemtek_pci_release(struct file *file)
3ca685aa	366	{
3ca685aa HV	367	return 0;
	368	}
	369
bec43661	370	static const struct v4l2_file_operations gemtek_pci_fops = {
1da177e4	371	.owner = THIS_MODULE,
79f94878 HV	372	.open = gemtek_pci_open,
79f94878 HV	373	.release = gemtek_pci_release,
6f66446c	374	.ioctl = video_ioctl2,
1da177e4 LT	375	};
1da177e4 LT	376
a399810c	377	static const struct v4l2_ioctl_ops gemtek_pci_ioctl_ops = {
6f66446c DL	378	.vidioc_querycap = vidioc_querycap,
	379	.vidioc_g_tuner = vidioc_g_tuner,
	380	.vidioc_s_tuner = vidioc_s_tuner,
	381	.vidioc_g_audio = vidioc_g_audio,
	382	.vidioc_s_audio = vidioc_s_audio,
	383	.vidioc_g_input = vidioc_g_input,
	384	.vidioc_s_input = vidioc_s_input,
	385	.vidioc_g_frequency = vidioc_g_frequency,
	386	.vidioc_s_frequency = vidioc_s_frequency,
	387	.vidioc_queryctrl = vidioc_queryctrl,
	388	.vidioc_g_ctrl = vidioc_g_ctrl,
	389	.vidioc_s_ctrl = vidioc_s_ctrl,
1da177e4 LT	390	};
1da177e4 LT	391
79f94878	392	static int __devinit gemtek_pci_probe(struct pci_dev pdev, const struct pci_device_id pci_id)
1da177e4	393	{
79f94878 HV	394	struct gemtek_pci *card;
	395	struct v4l2_device *v4l2_dev;
	396	int res;
1da177e4	397
79f94878 HV	398	card = kzalloc(sizeof(struct gemtek_pci), GFP_KERNEL);
	399	if (card == NULL) {
	400	dev_err(&pdev->dev, "out of memory\n");
1da177e4 LT	401	return -ENOMEM;
1da177e4 LT	402	}
1da177e4	403
79f94878 HV	404	v4l2_dev = &card->v4l2_dev;
	405	mutex_init(&card->lock);
	406	card->pdev = pdev;
4286c6f6	407
79f94878	408	strlcpy(v4l2_dev->name, "gemtek_pci", sizeof(v4l2_dev->name));
1da177e4	409
79f94878 HV	410	res = v4l2_device_register(&pdev->dev, v4l2_dev);
	411	if (res < 0) {
	412	v4l2_err(v4l2_dev, "Could not register v4l2_device\n");
	413	kfree(card);
	414	return res;
1da177e4 LT	415	}
1da177e4 LT	416
79f94878 HV	417	if (pci_enable_device(pdev))
79f94878 HV	418	goto err_pci;
4286c6f6	419
79f94878 HV	420	card->iobase = pci_resource_start(pdev, 0);
	421	card->length = pci_resource_len(pdev, 0);
	422
	423	if (request_region(card->iobase, card->length, card_names[pci_id->driver_data]) == NULL) {
	424	v4l2_err(v4l2_dev, "i/o port already in use\n");
	425	goto err_pci;
1da177e4	426	}
1da177e4	427
79f94878 HV	428	strlcpy(card->vdev.name, v4l2_dev->name, sizeof(card->vdev.name));
	429	card->vdev.v4l2_dev = v4l2_dev;
	430	card->vdev.fops = &gemtek_pci_fops;
	431	card->vdev.ioctl_ops = &gemtek_pci_ioctl_ops;
	432	card->vdev.release = video_device_release_empty;
	433	video_set_drvdata(&card->vdev, card);
	434
	435	if (video_register_device(&card->vdev, VFL_TYPE_RADIO, nr_radio) < 0)
1da177e4	436	goto err_video;
1da177e4	437
79f94878	438	gemtek_pci_mute(card);
1da177e4	439
79f94878 HV	440	v4l2_info(v4l2_dev, "Gemtek PCI Radio (rev. %d) found at 0x%04x-0x%04x.\n",
79f94878 HV	441	pdev->revision, card->iobase, card->iobase + card->length - 1);
1da177e4 LT	442
	443	return 0;
	444
	445	err_video:
79f94878	446	release_region(card->iobase, card->length);
1da177e4 LT	447
1da177e4 LT	448	err_pci:
79f94878 HV	449	v4l2_device_unregister(v4l2_dev);
79f94878 HV	450	kfree(card);
4286c6f6	451	return -ENODEV;
1da177e4 LT	452	}
1da177e4 LT	453
79f94878	454	static void __devexit gemtek_pci_remove(struct pci_dev *pdev)
1da177e4	455	{
79f94878 HV	456	struct v4l2_device *v4l2_dev = dev_get_drvdata(&pdev->dev);
79f94878 HV	457	struct gemtek_pci *card = to_gemtek_pci(v4l2_dev);
1da177e4	458
79f94878 HV	459	video_unregister_device(&card->vdev);
79f94878 HV	460	v4l2_device_unregister(v4l2_dev);
1da177e4	461
79f94878	462	release_region(card->iobase, card->length);
4286c6f6	463
79f94878 HV	464	if (mx)
79f94878 HV	465	gemtek_pci_mute(card);
1da177e4	466
79f94878	467	kfree(card);
1da177e4 LT	468	}
1da177e4 LT	469
79f94878	470	static struct pci_driver gemtek_pci_driver = {
1da177e4 LT	471	.name = "gemtek_pci",
	472	.id_table = gemtek_pci_id,
	473	.probe = gemtek_pci_probe,
	474	.remove = __devexit_p(gemtek_pci_remove),
	475	};
	476
79f94878	477	static int __init gemtek_pci_init(void)
1da177e4	478	{
79f94878	479	return pci_register_driver(&gemtek_pci_driver);
1da177e4 LT	480	}
1da177e4 LT	481
79f94878	482	static void __exit gemtek_pci_exit(void)
1da177e4	483	{
13962753	484	pci_unregister_driver(&gemtek_pci_driver);
1da177e4 LT	485	}
1da177e4 LT	486
79f94878 HV	487	module_init(gemtek_pci_init);
79f94878 HV	488	module_exit(gemtek_pci_exit);