[deliverable/linux.git] / drivers / media / radio / radio-maxiradio.c

/*
 * Guillemot Maxi Radio FM 2000 PCI radio card driver for Linux
 * (C) 2001 Dimitromanolakis Apostolos <apdim@grecian.net>
 *
 * Based in the radio Maestro PCI driver. Actually it uses the same chip
 * for radio but different pci controller.
 *
 * I didn't have any specs I reversed engineered the protocol from
 * the windows driver (radio.dll).
 *
 * The card uses the TEA5757 chip that includes a search function but it
 * is useless as I haven't found any way to read back the frequency. If
 * anybody does please mail me.
 *
 * For the pdf file see:
 * http://www.semiconductors.philips.com/pip/TEA5757H/V1
 *
 *
 * CHANGES:
 *   0.75b
 *     - better pci interface thanks to Francois Romieu <romieu@cogenit.fr>
 *
 *   0.75      Sun Feb  4 22:51:27 EET 2001
 *     - tiding up
 *     - removed support for multiple devices as it didn't work anyway
 *
 * BUGS:
 *   - card unmutes if you change frequency
 *
 * (c) 2006, 2007 by Mauro Carvalho Chehab <mchehab@infradead.org>:
 *	- Conversion to V4L2 API
 *      - Uses video_ioctl2 for parsing and to add debug support
 */


#include <linux/module.h>
#include <linux/init.h>
#include <linux/ioport.h>
#include <linux/delay.h>
#include <asm/io.h>
#include <asm/uaccess.h>
#include <linux/mutex.h>

#include <linux/pci.h>
#include <linux/videodev2.h>
#include <media/v4l2-common.h>

#define DRIVER_VERSION	"0.76"

#include <linux/version.h>      /* for KERNEL_VERSION MACRO     */
#define RADIO_VERSION KERNEL_VERSION(0,7,6)

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,
	}
};

#ifndef PCI_VENDOR_ID_GUILLEMOT
#define PCI_VENDOR_ID_GUILLEMOT 0x5046
#endif

#ifndef PCI_DEVICE_ID_GUILLEMOT
#define PCI_DEVICE_ID_GUILLEMOT_MAXIRADIO 0x1001
#endif


/* TEA5757 pin mappings */
static const int clk = 1, data = 2, wren = 4, mo_st = 8, power = 16 ;

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


#define FREQ_LO		 50*16000
#define FREQ_HI		150*16000

#define FREQ_IF         171200 /* 10.7*16000   */
#define FREQ_STEP       200    /* 12.5*16      */

#define FREQ2BITS(x)	((( (unsigned int)(x)+FREQ_IF+(FREQ_STEP<<1))\
			/(FREQ_STEP<<2))<<2) /* (x==fmhz*16*1000) -> bits */

#define BITS2FREQ(x)	((x) * FREQ_STEP - FREQ_IF)


static const struct file_operations maxiradio_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 radio_device
{
	__u16	io,	/* base of radio io */
		muted,	/* VIDEO_AUDIO_MUTE */
		stereo,	/* VIDEO_TUNER_STEREO_ON */
		tuned;	/* signal strength (0 or 0xffff) */

	unsigned long freq;

	struct mutex lock;
} radio_unit = {0, 0, 0, 0, };


static void outbit(unsigned long bit, __u16 io)
{
	if(bit != 0)
		{
			outb(  power|wren|data     ,io); udelay(4);
			outb(  power|wren|data|clk ,io); udelay(4);
			outb(  power|wren|data     ,io); udelay(4);
		}
	else
		{
			outb(  power|wren          ,io); udelay(4);
			outb(  power|wren|clk      ,io); udelay(4);
			outb(  power|wren          ,io); udelay(4);
		}
}

static void turn_power(__u16 io, int p)
{
	if(p != 0) outb(power, io); else outb(0,io);
}


static void set_freq(__u16 io, __u32 data)
{
	unsigned long int si;
	int bl;

	/* TEA5757 shift register bits (see pdf) */

	outbit(0,io); // 24  search
	outbit(1,io); // 23  search up/down

	outbit(0,io); // 22  stereo/mono

	outbit(0,io); // 21  band
	outbit(0,io); // 20  band (only 00=FM works I think)

	outbit(0,io); // 19  port ?
	outbit(0,io); // 18  port ?

	outbit(0,io); // 17  search level
	outbit(0,io); // 16  search level

	si = 0x8000;
	for(bl = 1; bl <= 16 ; bl++) { outbit(data & si,io); si >>=1; }

	outb(power,io);
}

static int get_stereo(__u16 io)
{
	outb(power,io); udelay(4);
	return !(inb(io) & mo_st);
}

static int get_tune(__u16 io)
{
	outb(power+clk,io); udelay(4);
	return !(inb(io) & mo_st);
}


static int vidioc_querycap (struct file *file, void  *priv,
			    struct v4l2_capability *v)
{
	strlcpy(v->driver, "radio-maxiradio", sizeof (v->driver));
	strlcpy(v->card, "Maxi Radio FM2000 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 radio_device *card=dev->priv;

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

	memset(v,0,sizeof(*v));
	strcpy(v->name, "FM");
	v->type = V4L2_TUNER_RADIO;

	v->rangelow=FREQ_LO;
	v->rangehigh=FREQ_HI;
	v->rxsubchans =V4L2_TUNER_SUB_MONO|V4L2_TUNER_SUB_STEREO;
	v->capability=V4L2_TUNER_CAP_LOW;
	if(get_stereo(card->io))
		v->audmode = V4L2_TUNER_MODE_STEREO;
	else
		v->audmode = V4L2_TUNER_MODE_MONO;
	v->signal=0xffff*get_tune(card->io);

	return 0;
}

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

	return 0;
}

static int vidioc_g_audio (struct file *file, void *priv,
			   struct v4l2_audio *a)
{
	if (a->index > 1)
		return -EINVAL;

	strcpy(a->name, "Radio");
	a->capability = V4L2_AUDCAP_STEREO;
	return 0;
}

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

	return 0;
}

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

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

	card->freq = f->frequency;
	set_freq(card->io, FREQ2BITS(card->freq));
	msleep(125);

	return 0;
}

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

	f->type = V4L2_TUNER_RADIO;
	f->frequency = card->freq;

	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 radio_device *card=dev->priv;

	switch (ctrl->id) {
		case V4L2_CID_AUDIO_MUTE:
			ctrl->value=card->muted;
			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 radio_device *card=dev->priv;

	switch (ctrl->id) {
		case V4L2_CID_AUDIO_MUTE:
			card->muted = ctrl->value;
			if(card->muted)
				turn_power(card->io, 0);
			else
				set_freq(card->io, FREQ2BITS(card->freq));
			return 0;
	}
	return -EINVAL;
}

static struct video_device maxiradio_radio =
{
	.owner		    = THIS_MODULE,
	.name		    = "Maxi Radio FM2000 radio",
	.type		    = VID_TYPE_TUNER,
	.fops               = &maxiradio_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_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 maxiradio_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
{
	if(!request_region(pci_resource_start(pdev, 0),
			   pci_resource_len(pdev, 0), "Maxi Radio FM 2000")) {
		printk(KERN_ERR "radio-maxiradio: can't reserve I/O ports\n");
		goto err_out;
	}

	if (pci_enable_device(pdev))
		goto err_out_free_region;

	radio_unit.io = pci_resource_start(pdev, 0);
	mutex_init(&radio_unit.lock);
	maxiradio_radio.priv = &radio_unit;

	if(video_register_device(&maxiradio_radio, VFL_TYPE_RADIO, radio_nr)==-1) {
		printk("radio-maxiradio: can't register device!");
		goto err_out_free_region;
	}

	printk(KERN_INFO "radio-maxiradio: version "
	       DRIVER_VERSION
	       " time "
	       __TIME__ "  "
	       __DATE__
	       "\n");

	printk(KERN_INFO "radio-maxiradio: found Guillemot MAXI Radio device (io = 0x%x)\n",
	       radio_unit.io);
	return 0;

err_out_free_region:
	release_region(pci_resource_start(pdev, 0), pci_resource_len(pdev, 0));
err_out:
	return -ENODEV;
}

static void __devexit maxiradio_remove_one(struct pci_dev *pdev)
{
	video_unregister_device(&maxiradio_radio);
	release_region(pci_resource_start(pdev, 0), pci_resource_len(pdev, 0));
}

static struct pci_device_id maxiradio_pci_tbl[] = {
	{ PCI_VENDOR_ID_GUILLEMOT, PCI_DEVICE_ID_GUILLEMOT_MAXIRADIO,
		PCI_ANY_ID, PCI_ANY_ID, },
	{ 0,}
};

MODULE_DEVICE_TABLE(pci, maxiradio_pci_tbl);

static struct pci_driver maxiradio_driver = {
	.name		= "radio-maxiradio",
	.id_table	= maxiradio_pci_tbl,
	.probe		= maxiradio_init_one,
	.remove		= __devexit_p(maxiradio_remove_one),
};

static int __init maxiradio_radio_init(void)
{
	return pci_register_driver(&maxiradio_driver);
}

static void __exit maxiradio_radio_exit(void)
{
	pci_unregister_driver(&maxiradio_driver);
}

module_init(maxiradio_radio_init);
module_exit(maxiradio_radio_exit);

MODULE_AUTHOR("Dimitromanolakis Apostolos, apdim@grecian.net");
MODULE_DESCRIPTION("Radio driver for the Guillemot Maxi Radio FM2000 radio.");
MODULE_LICENSE("GPL");

module_param_named(debug,maxiradio_radio.debug, int, 0644);
MODULE_PARM_DESC(debug,"activates debug info");
Commit	Line	Data
4286c6f6 MCC	1	/*
4286c6f6 MCC	2	* Guillemot Maxi Radio FM 2000 PCI radio card driver for Linux
1da177e4 LT	3	* (C) 2001 Dimitromanolakis Apostolos <apdim@grecian.net>
	4	*
	5	* Based in the radio Maestro PCI driver. Actually it uses the same chip
	6	* for radio but different pci controller.
	7	*
	8	* I didn't have any specs I reversed engineered the protocol from
4286c6f6	9	* the windows driver (radio.dll).
1da177e4 LT	10	*
1da177e4 LT	11	* The card uses the TEA5757 chip that includes a search function but it
4286c6f6	12	* is useless as I haven't found any way to read back the frequency. If
1da177e4 LT	13	* anybody does please mail me.
	14	*
	15	* For the pdf file see:
	16	* http://www.semiconductors.philips.com/pip/TEA5757H/V1
	17	*
	18	*
	19	* CHANGES:
	20	* 0.75b
	21	* - better pci interface thanks to Francois Romieu <romieu@cogenit.fr>
	22	*
e84fef6b	23	* 0.75 Sun Feb 4 22:51:27 EET 2001
1da177e4 LT	24	* - tiding up
	25	* - removed support for multiple devices as it didn't work anyway
	26	*
4286c6f6	27	* BUGS:
1da177e4 LT	28	* - card unmutes if you change frequency
1da177e4 LT	29	*
06470ed6 MCC	30	* (c) 2006, 2007 by Mauro Carvalho Chehab <mchehab@infradead.org>:
	31	* - Conversion to V4L2 API
	32	* - Uses video_ioctl2 for parsing and to add debug support
1da177e4 LT	33	*/
	34
	35
	36	#include <linux/module.h>
	37	#include <linux/init.h>
	38	#include <linux/ioport.h>
	39	#include <linux/delay.h>
1da177e4 LT	40	#include <asm/io.h>
1da177e4 LT	41	#include <asm/uaccess.h>
3593cab5 IM	42	#include <linux/mutex.h>
3593cab5 IM	43
1da177e4	44	#include <linux/pci.h>
e84fef6b	45	#include <linux/videodev2.h>
5e87efa3	46	#include <media/v4l2-common.h>
1da177e4	47
e84fef6b MCC	48	#define DRIVER_VERSION "0.76"
	49
	50	#include <linux/version.h> /* for KERNEL_VERSION MACRO */
	51	#define RADIO_VERSION KERNEL_VERSION(0,7,6)
	52
	53	static struct v4l2_queryctrl radio_qctrl[] = {
	54	{
	55	.id = V4L2_CID_AUDIO_MUTE,
	56	.name = "Mute",
	57	.minimum = 0,
	58	.maximum = 1,
	59	.default_value = 1,
	60	.type = V4L2_CTRL_TYPE_BOOLEAN,
	61	}
	62	};
1da177e4 LT	63
	64	#ifndef PCI_VENDOR_ID_GUILLEMOT
	65	#define PCI_VENDOR_ID_GUILLEMOT 0x5046
	66	#endif
	67
	68	#ifndef PCI_DEVICE_ID_GUILLEMOT
	69	#define PCI_DEVICE_ID_GUILLEMOT_MAXIRADIO 0x1001
	70	#endif
	71
	72
	73	/* TEA5757 pin mappings */
	74	static const int clk = 1, data = 2, wren = 4, mo_st = 8, power = 16 ;
	75
	76	static int radio_nr = -1;
	77	module_param(radio_nr, int, 0);
	78
	79
	80	#define FREQ_LO 50*16000
	81	#define FREQ_HI 150*16000
	82
	83	#define FREQ_IF 171200 /* 10.716000 /
	84	#define FREQ_STEP 200 /* 12.516 /
	85
	86	#define FREQ2BITS(x) ((( (unsigned int)(x)+FREQ_IF+(FREQ_STEP<<1))\
	87	/(FREQ_STEP<<2))<<2) /* (x==fmhz161000) -> bits */
	88
	89	#define BITS2FREQ(x) ((x) * FREQ_STEP - FREQ_IF)
	90
	91
fa027c2a	92	static const struct file_operations maxiradio_fops = {
1da177e4 LT	93	.owner = THIS_MODULE,
	94	.open = video_exclusive_open,
	95	.release = video_exclusive_release,
06470ed6	96	.ioctl = video_ioctl2,
0d0fbf81	97	.compat_ioctl = v4l_compat_ioctl32,
1da177e4 LT	98	.llseek = no_llseek,
1da177e4 LT	99	};
1da177e4 LT	100
	101	static struct radio_device
	102	{
	103	__u16 io, /* base of radio io */
	104	muted, /* VIDEO_AUDIO_MUTE */
4286c6f6	105	stereo, /* VIDEO_TUNER_STEREO_ON */
1da177e4	106	tuned; /* signal strength (0 or 0xffff) */
4286c6f6	107
1da177e4	108	unsigned long freq;
4286c6f6	109
3593cab5	110	struct mutex lock;
1da177e4 LT	111	} radio_unit = {0, 0, 0, 0, };
	112
	113
	114	static void outbit(unsigned long bit, __u16 io)
	115	{
	116	if(bit != 0)
	117	{
	118	outb( power\|wren\|data ,io); udelay(4);
	119	outb( power\|wren\|data\|clk ,io); udelay(4);
	120	outb( power\|wren\|data ,io); udelay(4);
	121	}
4286c6f6	122	else
1da177e4 LT	123	{
	124	outb( power\|wren ,io); udelay(4);
	125	outb( power\|wren\|clk ,io); udelay(4);
	126	outb( power\|wren ,io); udelay(4);
	127	}
	128	}
	129
	130	static void turn_power(__u16 io, int p)
	131	{
	132	if(p != 0) outb(power, io); else outb(0,io);
	133	}
	134
	135
	136	static void set_freq(__u16 io, __u32 data)
	137	{
	138	unsigned long int si;
	139	int bl;
4286c6f6	140
1da177e4 LT	141	/* TEA5757 shift register bits (see pdf) */
1da177e4 LT	142
4286c6f6	143	outbit(0,io); // 24 search
1da177e4	144	outbit(1,io); // 23 search up/down
4286c6f6	145
1da177e4 LT	146	outbit(0,io); // 22 stereo/mono
	147
	148	outbit(0,io); // 21 band
	149	outbit(0,io); // 20 band (only 00=FM works I think)
	150
	151	outbit(0,io); // 19 port ?
	152	outbit(0,io); // 18 port ?
4286c6f6	153
1da177e4 LT	154	outbit(0,io); // 17 search level
1da177e4 LT	155	outbit(0,io); // 16 search level
4286c6f6	156
1da177e4 LT	157	si = 0x8000;
1da177e4 LT	158	for(bl = 1; bl <= 16 ; bl++) { outbit(data & si,io); si >>=1; }
4286c6f6	159
1da177e4 LT	160	outb(power,io);
	161	}
	162
	163	static int get_stereo(__u16 io)
4286c6f6	164	{
1da177e4 LT	165	outb(power,io); udelay(4);
	166	return !(inb(io) & mo_st);
	167	}
	168
	169	static int get_tune(__u16 io)
4286c6f6	170	{
1da177e4 LT	171	outb(power+clk,io); udelay(4);
	172	return !(inb(io) & mo_st);
	173	}
	174
	175
06470ed6 MCC	176	static int vidioc_querycap (struct file file, void priv,
	177	struct v4l2_capability *v)
	178	{
	179	strlcpy(v->driver, "radio-maxiradio", sizeof (v->driver));
	180	strlcpy(v->card, "Maxi Radio FM2000 radio", sizeof (v->card));
	181	sprintf(v->bus_info,"ISA");
	182	v->version = RADIO_VERSION;
	183	v->capabilities = V4L2_CAP_TUNER;
	184
	185	return 0;
	186	}
	187
	188	static int vidioc_g_tuner (struct file file, void priv,
	189	struct v4l2_tuner *v)
1da177e4 LT	190	{
	191	struct video_device *dev = video_devdata(file);
	192	struct radio_device *card=dev->priv;
	193
06470ed6 MCC	194	if (v->index > 0)
06470ed6 MCC	195	return -EINVAL;
e84fef6b	196
06470ed6 MCC	197	memset(v,0,sizeof(*v));
	198	strcpy(v->name, "FM");
	199	v->type = V4L2_TUNER_RADIO;
4286c6f6	200
06470ed6 MCC	201	v->rangelow=FREQ_LO;
	202	v->rangehigh=FREQ_HI;
	203	v->rxsubchans =V4L2_TUNER_SUB_MONO\|V4L2_TUNER_SUB_STEREO;
	204	v->capability=V4L2_TUNER_CAP_LOW;
	205	if(get_stereo(card->io))
	206	v->audmode = V4L2_TUNER_MODE_STEREO;
	207	else
	208	v->audmode = V4L2_TUNER_MODE_MONO;
	209	v->signal=0xffff*get_tune(card->io);
4286c6f6	210
06470ed6 MCC	211	return 0;
06470ed6 MCC	212	}
e84fef6b	213
06470ed6 MCC	214	static int vidioc_s_tuner (struct file file, void priv,
	215	struct v4l2_tuner *v)
	216	{
	217	if (v->index > 0)
	218	return -EINVAL;
4286c6f6	219
06470ed6 MCC	220	return 0;
06470ed6 MCC	221	}
e84fef6b	222
140dcc46 MCC	223	static int vidioc_g_audio (struct file file, void priv,
	224	struct v4l2_audio *a)
	225	{
	226	if (a->index > 1)
	227	return -EINVAL;
	228
	229	strcpy(a->name, "Radio");
	230	a->capability = V4L2_AUDCAP_STEREO;
	231	return 0;
	232	}
	233
	234	static int vidioc_s_audio (struct file file, void priv,
	235	struct v4l2_audio *a)
	236	{
	237	if (a->index != 0)
	238	return -EINVAL;
	239
	240	return 0;
	241	}
	242
06470ed6 MCC	243	static int vidioc_s_frequency (struct file file, void priv,
	244	struct v4l2_frequency *f)
	245	{
	246	struct video_device *dev = video_devdata(file);
	247	struct radio_device *card=dev->priv;
4286c6f6	248
06470ed6 MCC	249	if (f->frequency < FREQ_LO \|\| f->frequency > FREQ_HI)
06470ed6 MCC	250	return -EINVAL;
4286c6f6	251
06470ed6 MCC	252	card->freq = f->frequency;
	253	set_freq(card->io, FREQ2BITS(card->freq));
	254	msleep(125);
e84fef6b	255
06470ed6 MCC	256	return 0;
06470ed6 MCC	257	}
4286c6f6	258
06470ed6 MCC	259	static int vidioc_g_frequency (struct file file, void priv,
	260	struct v4l2_frequency *f)
	261	{
	262	struct video_device *dev = video_devdata(file);
	263	struct radio_device *card=dev->priv;
4286c6f6	264
06470ed6 MCC	265	f->type = V4L2_TUNER_RADIO;
	266	f->frequency = card->freq;
	267
	268	return 0;
	269	}
	270
	271	static int vidioc_queryctrl (struct file file, void priv,
	272	struct v4l2_queryctrl *qc)
	273	{
	274	int i;
	275
	276	for (i = 0; i < ARRAY_SIZE(radio_qctrl); i++) {
	277	if (qc->id && qc->id == radio_qctrl[i].id) {
	278	memcpy(qc, &(radio_qctrl[i]), sizeof(*qc));
	279	return (0);
e84fef6b	280	}
06470ed6 MCC	281	}
	282	return -EINVAL;
	283	}
e84fef6b	284
06470ed6 MCC	285	static int vidioc_g_ctrl (struct file file, void priv,
	286	struct v4l2_control *ctrl)
	287	{
	288	struct video_device *dev = video_devdata(file);
	289	struct radio_device *card=dev->priv;
e84fef6b	290
06470ed6 MCC	291	switch (ctrl->id) {
	292	case V4L2_CID_AUDIO_MUTE:
	293	ctrl->value=card->muted;
	294	return (0);
1da177e4	295	}
06470ed6	296	return -EINVAL;
1da177e4 LT	297	}
1da177e4 LT	298
06470ed6 MCC	299	static int vidioc_s_ctrl (struct file file, void priv,
06470ed6 MCC	300	struct v4l2_control *ctrl)
1da177e4 LT	301	{
	302	struct video_device *dev = video_devdata(file);
	303	struct radio_device *card=dev->priv;
4286c6f6	304
06470ed6 MCC	305	switch (ctrl->id) {
	306	case V4L2_CID_AUDIO_MUTE:
	307	card->muted = ctrl->value;
	308	if(card->muted)
	309	turn_power(card->io, 0);
	310	else
	311	set_freq(card->io, FREQ2BITS(card->freq));
	312	return 0;
	313	}
	314	return -EINVAL;
1da177e4 LT	315	}
1da177e4 LT	316
06470ed6 MCC	317	static struct video_device maxiradio_radio =
	318	{
	319	.owner = THIS_MODULE,
	320	.name = "Maxi Radio FM2000 radio",
	321	.type = VID_TYPE_TUNER,
	322	.fops = &maxiradio_fops,
	323
	324	.vidioc_querycap = vidioc_querycap,
	325	.vidioc_g_tuner = vidioc_g_tuner,
	326	.vidioc_s_tuner = vidioc_s_tuner,
140dcc46 MCC	327	.vidioc_g_audio = vidioc_g_audio,
140dcc46 MCC	328	.vidioc_s_audio = vidioc_s_audio,
06470ed6 MCC	329	.vidioc_g_frequency = vidioc_g_frequency,
	330	.vidioc_s_frequency = vidioc_s_frequency,
	331	.vidioc_queryctrl = vidioc_queryctrl,
	332	.vidioc_g_ctrl = vidioc_g_ctrl,
	333	.vidioc_s_ctrl = vidioc_s_ctrl,
1da177e4	334
06470ed6	335	};
1da177e4 LT	336
	337	static int __devinit maxiradio_init_one(struct pci_dev pdev, const struct pci_device_id ent)
	338	{
	339	if(!request_region(pci_resource_start(pdev, 0),
4286c6f6 MCC	340	pci_resource_len(pdev, 0), "Maxi Radio FM 2000")) {
	341	printk(KERN_ERR "radio-maxiradio: can't reserve I/O ports\n");
	342	goto err_out;
1da177e4 LT	343	}
	344
	345	if (pci_enable_device(pdev))
4286c6f6	346	goto err_out_free_region;
1da177e4 LT	347
1da177e4 LT	348	radio_unit.io = pci_resource_start(pdev, 0);
3593cab5	349	mutex_init(&radio_unit.lock);
1da177e4 LT	350	maxiradio_radio.priv = &radio_unit;
	351
	352	if(video_register_device(&maxiradio_radio, VFL_TYPE_RADIO, radio_nr)==-1) {
4286c6f6 MCC	353	printk("radio-maxiradio: can't register device!");
4286c6f6 MCC	354	goto err_out_free_region;
1da177e4 LT	355	}
	356
	357	printk(KERN_INFO "radio-maxiradio: version "
	358	DRIVER_VERSION
	359	" time "
	360	__TIME__ " "
	361	__DATE__
	362	"\n");
	363
	364	printk(KERN_INFO "radio-maxiradio: found Guillemot MAXI Radio device (io = 0x%x)\n",
	365	radio_unit.io);
	366	return 0;
	367
	368	err_out_free_region:
	369	release_region(pci_resource_start(pdev, 0), pci_resource_len(pdev, 0));
	370	err_out:
	371	return -ENODEV;
	372	}
	373
	374	static void __devexit maxiradio_remove_one(struct pci_dev *pdev)
	375	{
	376	video_unregister_device(&maxiradio_radio);
	377	release_region(pci_resource_start(pdev, 0), pci_resource_len(pdev, 0));
	378	}
	379
	380	static struct pci_device_id maxiradio_pci_tbl[] = {
	381	{ PCI_VENDOR_ID_GUILLEMOT, PCI_DEVICE_ID_GUILLEMOT_MAXIRADIO,
	382	PCI_ANY_ID, PCI_ANY_ID, },
	383	{ 0,}
	384	};
	385
	386	MODULE_DEVICE_TABLE(pci, maxiradio_pci_tbl);
	387
	388	static struct pci_driver maxiradio_driver = {
	389	.name = "radio-maxiradio",
	390	.id_table = maxiradio_pci_tbl,
	391	.probe = maxiradio_init_one,
	392	.remove = __devexit_p(maxiradio_remove_one),
	393	};
	394
	395	static int __init maxiradio_radio_init(void)
	396	{
9bfab8ce	397	return pci_register_driver(&maxiradio_driver);
1da177e4 LT	398	}
	399
	400	static void __exit maxiradio_radio_exit(void)
	401	{
	402	pci_unregister_driver(&maxiradio_driver);
	403	}
	404
	405	module_init(maxiradio_radio_init);
	406	module_exit(maxiradio_radio_exit);
06470ed6 MCC	407
	408	MODULE_AUTHOR("Dimitromanolakis Apostolos, apdim@grecian.net");
	409	MODULE_DESCRIPTION("Radio driver for the Guillemot Maxi Radio FM2000 radio.");
	410	MODULE_LICENSE("GPL");
	411
	412	module_param_named(debug,maxiradio_radio.debug, int, 0644);
	413	MODULE_PARM_DESC(debug,"activates debug info");