[linux-block.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	"0.77"

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

static struct video_device maxiradio_radio;

#define dprintk(num, fmt, arg...)                                          \
	do {                                                               \
		if (maxiradio_radio.debug >= num)                          \
			printk(KERN_DEBUG "%s: " fmt,                      \
				maxiradio_radio.name, ## arg); } while (0)

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      */

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

#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 = {
	.muted =1,
	.freq = FREQ_LO,
};

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) {
		dprintk(1, "Radio powered on\n");
		outb(power, io);
	} else {
		dprintk(1, "Radio powered off\n");
		outb(0,io);
	}
}

static void set_freq(__u16 io, __u32 freq)
{
	unsigned long int si;
	int bl;
	int data = FREQ2BITS(freq);

	/* 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;
	}

	dprintk(1, "Radio freq set to %d.%02d MHz\n",
				freq / 16000,
				freq % 16000 * 100 / 16000);

	turn_power(io, 1);
}

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, "FM");
	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;
}

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) {
		dprintk(1, "radio freq (%d.%02d MHz) out of range (%d-%d)\n",
					f->frequency / 16000,
					f->frequency % 16000 * 100 / 16000,
					FREQ_LO / 16000, FREQ_HI / 16000);

		return -EINVAL;
	}

	card->freq = f->frequency;
	set_freq(card->io, 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;

	dprintk(4, "radio freq is %d.%02d MHz",
				f->frequency / 16000,
				f->frequency % 16000 * 100 / 16000);

	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, 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_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 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
f1557ceb	48	#define DRIVER_VERSION "0.77"
e84fef6b MCC	49
e84fef6b MCC	50	#include <linux/version.h> /* for KERNEL_VERSION MACRO */
f1557ceb MCC	51	#define RADIO_VERSION KERNEL_VERSION(0,7,7)
	52
	53	static struct video_device maxiradio_radio;
	54
	55	#define dprintk(num, fmt, arg...) \
	56	do { \
	57	if (maxiradio_radio.debug >= num) \
	58	printk(KERN_DEBUG "%s: " fmt, \
	59	maxiradio_radio.name, ## arg); } while (0)
e84fef6b MCC	60
	61	static struct v4l2_queryctrl radio_qctrl[] = {
	62	{
	63	.id = V4L2_CID_AUDIO_MUTE,
	64	.name = "Mute",
	65	.minimum = 0,
	66	.maximum = 1,
	67	.default_value = 1,
	68	.type = V4L2_CTRL_TYPE_BOOLEAN,
	69	}
	70	};
1da177e4 LT	71
	72	#ifndef PCI_VENDOR_ID_GUILLEMOT
	73	#define PCI_VENDOR_ID_GUILLEMOT 0x5046
	74	#endif
	75
	76	#ifndef PCI_DEVICE_ID_GUILLEMOT
	77	#define PCI_DEVICE_ID_GUILLEMOT_MAXIRADIO 0x1001
	78	#endif
	79
	80
	81	/* TEA5757 pin mappings */
	82	static const int clk = 1, data = 2, wren = 4, mo_st = 8, power = 16 ;
	83
	84	static int radio_nr = -1;
	85	module_param(radio_nr, int, 0);
	86
	87
	88	#define FREQ_LO 50*16000
	89	#define FREQ_HI 150*16000
	90
	91	#define FREQ_IF 171200 /* 10.716000 /
	92	#define FREQ_STEP 200 /* 12.516 /
	93
f1557ceb MCC	94	/* (x==fmhz161000) -> bits */
	95	#define FREQ2BITS(x) ((( (unsigned int)(x)+FREQ_IF+(FREQ_STEP<<1)) \
	96	/(FREQ_STEP<<2))<<2)
1da177e4 LT	97
	98	#define BITS2FREQ(x) ((x) * FREQ_STEP - FREQ_IF)
	99
	100
fa027c2a	101	static const struct file_operations maxiradio_fops = {
1da177e4 LT	102	.owner = THIS_MODULE,
	103	.open = video_exclusive_open,
	104	.release = video_exclusive_release,
06470ed6	105	.ioctl = video_ioctl2,
0d0fbf81	106	.compat_ioctl = v4l_compat_ioctl32,
1da177e4 LT	107	.llseek = no_llseek,
1da177e4 LT	108	};
1da177e4 LT	109
	110	static struct radio_device
	111	{
	112	__u16 io, /* base of radio io */
	113	muted, /* VIDEO_AUDIO_MUTE */
4286c6f6	114	stereo, /* VIDEO_TUNER_STEREO_ON */
1da177e4	115	tuned; /* signal strength (0 or 0xffff) */
4286c6f6	116
1da177e4	117	unsigned long freq;
4286c6f6	118
3593cab5	119	struct mutex lock;
712642b8 MCC	120	} radio_unit = {
	121	.muted =1,
	122	.freq = FREQ_LO,
	123	};
1da177e4 LT	124
	125	static void outbit(unsigned long bit, __u16 io)
	126	{
f1557ceb	127	if (bit != 0)
1da177e4 LT	128	{
	129	outb( power\|wren\|data ,io); udelay(4);
	130	outb( power\|wren\|data\|clk ,io); udelay(4);
	131	outb( power\|wren\|data ,io); udelay(4);
	132	}
4286c6f6	133	else
1da177e4 LT	134	{
	135	outb( power\|wren ,io); udelay(4);
	136	outb( power\|wren\|clk ,io); udelay(4);
	137	outb( power\|wren ,io); udelay(4);
	138	}
	139	}
	140
	141	static void turn_power(__u16 io, int p)
	142	{
f1557ceb MCC	143	if (p != 0) {
	144	dprintk(1, "Radio powered on\n");
	145	outb(power, io);
	146	} else {
	147	dprintk(1, "Radio powered off\n");
	148	outb(0,io);
	149	}
1da177e4 LT	150	}
1da177e4 LT	151
f1557ceb	152	static void set_freq(__u16 io, __u32 freq)
1da177e4 LT	153	{
	154	unsigned long int si;
	155	int bl;
f1557ceb	156	int data = FREQ2BITS(freq);
4286c6f6	157
1da177e4 LT	158	/* TEA5757 shift register bits (see pdf) */
1da177e4 LT	159
4286c6f6	160	outbit(0,io); // 24 search
1da177e4	161	outbit(1,io); // 23 search up/down
4286c6f6	162
1da177e4 LT	163	outbit(0,io); // 22 stereo/mono
	164
	165	outbit(0,io); // 21 band
	166	outbit(0,io); // 20 band (only 00=FM works I think)
	167
	168	outbit(0,io); // 19 port ?
	169	outbit(0,io); // 18 port ?
4286c6f6	170
1da177e4 LT	171	outbit(0,io); // 17 search level
1da177e4 LT	172	outbit(0,io); // 16 search level
4286c6f6	173
1da177e4	174	si = 0x8000;
f1557ceb MCC	175	for (bl = 1; bl <= 16 ; bl++) {
	176	outbit(data & si,io);
	177	si >>=1;
	178	}
4286c6f6	179
f1557ceb MCC	180	dprintk(1, "Radio freq set to %d.%02d MHz\n",
	181	freq / 16000,
	182	freq % 16000 * 100 / 16000);
	183
	184	turn_power(io, 1);
1da177e4 LT	185	}
	186
	187	static int get_stereo(__u16 io)
4286c6f6	188	{
f1557ceb MCC	189	outb(power,io);
	190	udelay(4);
	191
1da177e4 LT	192	return !(inb(io) & mo_st);
	193	}
	194
	195	static int get_tune(__u16 io)
4286c6f6	196	{
f1557ceb MCC	197	outb(power+clk,io);
	198	udelay(4);
	199
1da177e4 LT	200	return !(inb(io) & mo_st);
	201	}
	202
	203
06470ed6 MCC	204	static int vidioc_querycap (struct file file, void priv,
	205	struct v4l2_capability *v)
	206	{
	207	strlcpy(v->driver, "radio-maxiradio", sizeof (v->driver));
	208	strlcpy(v->card, "Maxi Radio FM2000 radio", sizeof (v->card));
	209	sprintf(v->bus_info,"ISA");
	210	v->version = RADIO_VERSION;
	211	v->capabilities = V4L2_CAP_TUNER;
	212
	213	return 0;
	214	}
	215
	216	static int vidioc_g_tuner (struct file file, void priv,
	217	struct v4l2_tuner *v)
1da177e4 LT	218	{
	219	struct video_device *dev = video_devdata(file);
	220	struct radio_device *card=dev->priv;
	221
06470ed6 MCC	222	if (v->index > 0)
06470ed6 MCC	223	return -EINVAL;
e84fef6b	224
06470ed6 MCC	225	memset(v,0,sizeof(*v));
	226	strcpy(v->name, "FM");
	227	v->type = V4L2_TUNER_RADIO;
4286c6f6	228
06470ed6 MCC	229	v->rangelow=FREQ_LO;
	230	v->rangehigh=FREQ_HI;
	231	v->rxsubchans =V4L2_TUNER_SUB_MONO\|V4L2_TUNER_SUB_STEREO;
	232	v->capability=V4L2_TUNER_CAP_LOW;
	233	if(get_stereo(card->io))
	234	v->audmode = V4L2_TUNER_MODE_STEREO;
	235	else
	236	v->audmode = V4L2_TUNER_MODE_MONO;
	237	v->signal=0xffff*get_tune(card->io);
4286c6f6	238
06470ed6 MCC	239	return 0;
06470ed6 MCC	240	}
e84fef6b	241
06470ed6 MCC	242	static int vidioc_s_tuner (struct file file, void priv,
	243	struct v4l2_tuner *v)
	244	{
	245	if (v->index > 0)
	246	return -EINVAL;
4286c6f6	247
06470ed6 MCC	248	return 0;
06470ed6 MCC	249	}
e84fef6b	250
140dcc46 MCC	251	static int vidioc_g_audio (struct file file, void priv,
	252	struct v4l2_audio *a)
	253	{
	254	if (a->index > 1)
	255	return -EINVAL;
	256
b61f8d69	257	strcpy(a->name, "FM");
140dcc46 MCC	258	a->capability = V4L2_AUDCAP_STEREO;
	259	return 0;
	260	}
	261
a0c05ab9 MCC	262	static int vidioc_g_input(struct file filp, void priv, unsigned int *i)
	263	{
	264	*i = 0;
f1557ceb	265
a0c05ab9 MCC	266	return 0;
	267	}
	268
	269	static int vidioc_s_input(struct file filp, void priv, unsigned int i)
	270	{
	271	if (i != 0)
	272	return -EINVAL;
f1557ceb	273
a0c05ab9 MCC	274	return 0;
	275	}
	276
	277
140dcc46 MCC	278	static int vidioc_s_audio (struct file file, void priv,
	279	struct v4l2_audio *a)
	280	{
	281	if (a->index != 0)
	282	return -EINVAL;
	283
	284	return 0;
	285	}
	286
06470ed6 MCC	287	static int vidioc_s_frequency (struct file file, void priv,
	288	struct v4l2_frequency *f)
	289	{
	290	struct video_device *dev = video_devdata(file);
	291	struct radio_device *card=dev->priv;
4286c6f6	292
f1557ceb MCC	293	if (f->frequency < FREQ_LO \|\| f->frequency > FREQ_HI) {
	294	dprintk(1, "radio freq (%d.%02d MHz) out of range (%d-%d)\n",
	295	f->frequency / 16000,
	296	f->frequency % 16000 * 100 / 16000,
	297	FREQ_LO / 16000, FREQ_HI / 16000);
	298
06470ed6	299	return -EINVAL;
f1557ceb	300	}
4286c6f6	301
06470ed6	302	card->freq = f->frequency;
f1557ceb	303	set_freq(card->io, card->freq);
06470ed6	304	msleep(125);
e84fef6b	305
06470ed6 MCC	306	return 0;
06470ed6 MCC	307	}
4286c6f6	308
06470ed6 MCC	309	static int vidioc_g_frequency (struct file file, void priv,
	310	struct v4l2_frequency *f)
	311	{
	312	struct video_device *dev = video_devdata(file);
	313	struct radio_device *card=dev->priv;
4286c6f6	314
06470ed6 MCC	315	f->type = V4L2_TUNER_RADIO;
	316	f->frequency = card->freq;
	317
f1557ceb MCC	318	dprintk(4, "radio freq is %d.%02d MHz",
	319	f->frequency / 16000,
	320	f->frequency % 16000 * 100 / 16000);
	321
06470ed6 MCC	322	return 0;
	323	}
	324
	325	static int vidioc_queryctrl (struct file file, void priv,
	326	struct v4l2_queryctrl *qc)
	327	{
	328	int i;
	329
	330	for (i = 0; i < ARRAY_SIZE(radio_qctrl); i++) {
	331	if (qc->id && qc->id == radio_qctrl[i].id) {
	332	memcpy(qc, &(radio_qctrl[i]), sizeof(*qc));
	333	return (0);
e84fef6b	334	}
06470ed6	335	}
f1557ceb	336
06470ed6 MCC	337	return -EINVAL;
06470ed6 MCC	338	}
e84fef6b	339
06470ed6 MCC	340	static int vidioc_g_ctrl (struct file file, void priv,
	341	struct v4l2_control *ctrl)
	342	{
	343	struct video_device *dev = video_devdata(file);
	344	struct radio_device *card=dev->priv;
e84fef6b	345
06470ed6 MCC	346	switch (ctrl->id) {
	347	case V4L2_CID_AUDIO_MUTE:
	348	ctrl->value=card->muted;
	349	return (0);
1da177e4	350	}
f1557ceb	351
06470ed6	352	return -EINVAL;
1da177e4 LT	353	}
1da177e4 LT	354
06470ed6 MCC	355	static int vidioc_s_ctrl (struct file file, void priv,
06470ed6 MCC	356	struct v4l2_control *ctrl)
1da177e4 LT	357	{
	358	struct video_device *dev = video_devdata(file);
	359	struct radio_device *card=dev->priv;
4286c6f6	360
06470ed6 MCC	361	switch (ctrl->id) {
	362	case V4L2_CID_AUDIO_MUTE:
	363	card->muted = ctrl->value;
	364	if(card->muted)
	365	turn_power(card->io, 0);
	366	else
f1557ceb	367	set_freq(card->io, card->freq);
06470ed6 MCC	368	return 0;
06470ed6 MCC	369	}
f1557ceb	370
06470ed6	371	return -EINVAL;
1da177e4 LT	372	}
1da177e4 LT	373
06470ed6 MCC	374	static struct video_device maxiradio_radio =
	375	{
	376	.owner = THIS_MODULE,
	377	.name = "Maxi Radio FM2000 radio",
	378	.type = VID_TYPE_TUNER,
	379	.fops = &maxiradio_fops,
	380
	381	.vidioc_querycap = vidioc_querycap,
	382	.vidioc_g_tuner = vidioc_g_tuner,
	383	.vidioc_s_tuner = vidioc_s_tuner,
140dcc46 MCC	384	.vidioc_g_audio = vidioc_g_audio,
140dcc46 MCC	385	.vidioc_s_audio = vidioc_s_audio,
a0c05ab9 MCC	386	.vidioc_g_input = vidioc_g_input,
a0c05ab9 MCC	387	.vidioc_s_input = vidioc_s_input,
06470ed6 MCC	388	.vidioc_g_frequency = vidioc_g_frequency,
	389	.vidioc_s_frequency = vidioc_s_frequency,
	390	.vidioc_queryctrl = vidioc_queryctrl,
	391	.vidioc_g_ctrl = vidioc_g_ctrl,
	392	.vidioc_s_ctrl = vidioc_s_ctrl,
06470ed6	393	};
1da177e4 LT	394
	395	static int __devinit maxiradio_init_one(struct pci_dev pdev, const struct pci_device_id ent)
	396	{
	397	if(!request_region(pci_resource_start(pdev, 0),
4286c6f6 MCC	398	pci_resource_len(pdev, 0), "Maxi Radio FM 2000")) {
	399	printk(KERN_ERR "radio-maxiradio: can't reserve I/O ports\n");
	400	goto err_out;
1da177e4 LT	401	}
	402
	403	if (pci_enable_device(pdev))
4286c6f6	404	goto err_out_free_region;
1da177e4 LT	405
1da177e4 LT	406	radio_unit.io = pci_resource_start(pdev, 0);
3593cab5	407	mutex_init(&radio_unit.lock);
1da177e4 LT	408	maxiradio_radio.priv = &radio_unit;
1da177e4 LT	409
712642b8	410	if (video_register_device(&maxiradio_radio, VFL_TYPE_RADIO, radio_nr)==-1) {
4286c6f6 MCC	411	printk("radio-maxiradio: can't register device!");
4286c6f6 MCC	412	goto err_out_free_region;
1da177e4 LT	413	}
	414
	415	printk(KERN_INFO "radio-maxiradio: version "
	416	DRIVER_VERSION
	417	" time "
	418	__TIME__ " "
	419	__DATE__
	420	"\n");
	421
	422	printk(KERN_INFO "radio-maxiradio: found Guillemot MAXI Radio device (io = 0x%x)\n",
	423	radio_unit.io);
	424	return 0;
	425
	426	err_out_free_region:
	427	release_region(pci_resource_start(pdev, 0), pci_resource_len(pdev, 0));
	428	err_out:
	429	return -ENODEV;
	430	}
	431
	432	static void __devexit maxiradio_remove_one(struct pci_dev *pdev)
	433	{
	434	video_unregister_device(&maxiradio_radio);
	435	release_region(pci_resource_start(pdev, 0), pci_resource_len(pdev, 0));
	436	}
	437
	438	static struct pci_device_id maxiradio_pci_tbl[] = {
	439	{ PCI_VENDOR_ID_GUILLEMOT, PCI_DEVICE_ID_GUILLEMOT_MAXIRADIO,
	440	PCI_ANY_ID, PCI_ANY_ID, },
	441	{ 0,}
	442	};
	443
	444	MODULE_DEVICE_TABLE(pci, maxiradio_pci_tbl);
	445
	446	static struct pci_driver maxiradio_driver = {
	447	.name = "radio-maxiradio",
	448	.id_table = maxiradio_pci_tbl,
	449	.probe = maxiradio_init_one,
	450	.remove = __devexit_p(maxiradio_remove_one),
	451	};
	452
	453	static int __init maxiradio_radio_init(void)
	454	{
9bfab8ce	455	return pci_register_driver(&maxiradio_driver);
1da177e4 LT	456	}
	457
	458	static void __exit maxiradio_radio_exit(void)
	459	{
	460	pci_unregister_driver(&maxiradio_driver);
	461	}
	462
	463	module_init(maxiradio_radio_init);
	464	module_exit(maxiradio_radio_exit);
06470ed6 MCC	465
	466	MODULE_AUTHOR("Dimitromanolakis Apostolos, apdim@grecian.net");
	467	MODULE_DESCRIPTION("Radio driver for the Guillemot Maxi Radio FM2000 radio.");
	468	MODULE_LICENSE("GPL");
	469
	470	module_param_named(debug,maxiradio_radio.debug, int, 0644);
	471	MODULE_PARM_DESC(debug,"activates debug info");