[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>
#include <media/v4l2-ioctl.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);

static unsigned long in_use;

#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 int maxiradio_exclusive_open(struct file *file)
{
	return test_and_set_bit(0, &in_use) ? -EBUSY : 0;
}

static int maxiradio_exclusive_release(struct file *file)
{
	clear_bit(0, &in_use);
	return 0;
}

static const struct v4l2_file_operations maxiradio_fops = {
	.owner		= THIS_MODULE,
	.open           = maxiradio_exclusive_open,
	.release        = maxiradio_exclusive_release,
	.ioctl          = video_ioctl2,
};

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 val = 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(val & 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 radio_device *card = video_drvdata(file);

	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 radio_device *card = video_drvdata(file);

	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 radio_device *card = video_drvdata(file);

	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 radio_device *card = video_drvdata(file);

	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 radio_device *card = video_drvdata(file);

	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 const struct v4l2_ioctl_ops maxiradio_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 struct video_device maxiradio_radio = {
	.name		= "Maxi Radio FM2000 radio",
	.fops           = &maxiradio_fops,
	.ioctl_ops 	= &maxiradio_ioctl_ops,
	.release	= video_device_release_empty,
};

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);
	video_set_drvdata(&maxiradio_radio, &radio_unit);

	if (video_register_device(&maxiradio_radio, VFL_TYPE_RADIO, radio_nr) < 0) {
		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>
35ea11ff	47	#include <media/v4l2-ioctl.h>
1da177e4	48
f1557ceb	49	#define DRIVER_VERSION "0.77"
e84fef6b MCC	50
e84fef6b MCC	51	#include <linux/version.h> /* for KERNEL_VERSION MACRO */
f1557ceb MCC	52	#define RADIO_VERSION KERNEL_VERSION(0,7,7)
	53
	54	static struct video_device maxiradio_radio;
	55
	56	#define dprintk(num, fmt, arg...) \
	57	do { \
	58	if (maxiradio_radio.debug >= num) \
	59	printk(KERN_DEBUG "%s: " fmt, \
	60	maxiradio_radio.name, ## arg); } while (0)
e84fef6b MCC	61
	62	static struct v4l2_queryctrl radio_qctrl[] = {
	63	{
	64	.id = V4L2_CID_AUDIO_MUTE,
	65	.name = "Mute",
	66	.minimum = 0,
	67	.maximum = 1,
	68	.default_value = 1,
	69	.type = V4L2_CTRL_TYPE_BOOLEAN,
	70	}
	71	};
1da177e4 LT	72
	73	#ifndef PCI_VENDOR_ID_GUILLEMOT
	74	#define PCI_VENDOR_ID_GUILLEMOT 0x5046
	75	#endif
	76
	77	#ifndef PCI_DEVICE_ID_GUILLEMOT
	78	#define PCI_DEVICE_ID_GUILLEMOT_MAXIRADIO 0x1001
	79	#endif
	80
	81
	82	/* TEA5757 pin mappings */
	83	static const int clk = 1, data = 2, wren = 4, mo_st = 8, power = 16 ;
	84
	85	static int radio_nr = -1;
	86	module_param(radio_nr, int, 0);
	87
3ca685aa	88	static unsigned long in_use;
1da177e4 LT	89
	90	#define FREQ_LO 50*16000
	91	#define FREQ_HI 150*16000
	92
	93	#define FREQ_IF 171200 /* 10.716000 /
	94	#define FREQ_STEP 200 /* 12.516 /
	95
f1557ceb MCC	96	/* (x==fmhz161000) -> bits */
	97	#define FREQ2BITS(x) ((( (unsigned int)(x)+FREQ_IF+(FREQ_STEP<<1)) \
	98	/(FREQ_STEP<<2))<<2)
1da177e4 LT	99
	100	#define BITS2FREQ(x) ((x) * FREQ_STEP - FREQ_IF)
	101
	102
bec43661	103	static int maxiradio_exclusive_open(struct file *file)
3ca685aa HV	104	{
	105	return test_and_set_bit(0, &in_use) ? -EBUSY : 0;
	106	}
	107
bec43661	108	static int maxiradio_exclusive_release(struct file *file)
3ca685aa HV	109	{
	110	clear_bit(0, &in_use);
	111	return 0;
	112	}
	113
bec43661	114	static const struct v4l2_file_operations maxiradio_fops = {
1da177e4	115	.owner = THIS_MODULE,
3ca685aa HV	116	.open = maxiradio_exclusive_open,
3ca685aa HV	117	.release = maxiradio_exclusive_release,
06470ed6	118	.ioctl = video_ioctl2,
1da177e4	119	};
1da177e4 LT	120
	121	static struct radio_device
	122	{
	123	__u16 io, /* base of radio io */
	124	muted, /* VIDEO_AUDIO_MUTE */
4286c6f6	125	stereo, /* VIDEO_TUNER_STEREO_ON */
1da177e4	126	tuned; /* signal strength (0 or 0xffff) */
4286c6f6	127
1da177e4	128	unsigned long freq;
4286c6f6	129
3593cab5	130	struct mutex lock;
712642b8 MCC	131	} radio_unit = {
	132	.muted =1,
	133	.freq = FREQ_LO,
	134	};
1da177e4 LT	135
	136	static void outbit(unsigned long bit, __u16 io)
	137	{
f1557ceb	138	if (bit != 0)
1da177e4 LT	139	{
	140	outb( power\|wren\|data ,io); udelay(4);
	141	outb( power\|wren\|data\|clk ,io); udelay(4);
	142	outb( power\|wren\|data ,io); udelay(4);
	143	}
4286c6f6	144	else
1da177e4 LT	145	{
	146	outb( power\|wren ,io); udelay(4);
	147	outb( power\|wren\|clk ,io); udelay(4);
	148	outb( power\|wren ,io); udelay(4);
	149	}
	150	}
	151
	152	static void turn_power(__u16 io, int p)
	153	{
f1557ceb MCC	154	if (p != 0) {
	155	dprintk(1, "Radio powered on\n");
	156	outb(power, io);
	157	} else {
	158	dprintk(1, "Radio powered off\n");
	159	outb(0,io);
	160	}
1da177e4 LT	161	}
1da177e4 LT	162
f1557ceb	163	static void set_freq(__u16 io, __u32 freq)
1da177e4 LT	164	{
	165	unsigned long int si;
	166	int bl;
c6eb8eaf	167	int val = FREQ2BITS(freq);
4286c6f6	168
1da177e4 LT	169	/* TEA5757 shift register bits (see pdf) */
1da177e4 LT	170
c6eb8eaf HV	171	outbit(0, io); /* 24 search */
c6eb8eaf HV	172	outbit(1, io); /* 23 search up/down */
4286c6f6	173
c6eb8eaf	174	outbit(0, io); /* 22 stereo/mono */
1da177e4	175
c6eb8eaf HV	176	outbit(0, io); /* 21 band */
c6eb8eaf HV	177	outbit(0, io); /* 20 band (only 00=FM works I think) */
1da177e4	178
c6eb8eaf HV	179	outbit(0, io); /* 19 port ? */
c6eb8eaf HV	180	outbit(0, io); /* 18 port ? */
4286c6f6	181
c6eb8eaf HV	182	outbit(0, io); /* 17 search level */
c6eb8eaf HV	183	outbit(0, io); /* 16 search level */
4286c6f6	184
1da177e4	185	si = 0x8000;
c6eb8eaf HV	186	for (bl = 1; bl <= 16; bl++) {
	187	outbit(val & si, io);
	188	si >>= 1;
f1557ceb	189	}
4286c6f6	190
f1557ceb MCC	191	dprintk(1, "Radio freq set to %d.%02d MHz\n",
	192	freq / 16000,
	193	freq % 16000 * 100 / 16000);
	194
	195	turn_power(io, 1);
1da177e4 LT	196	}
	197
	198	static int get_stereo(__u16 io)
4286c6f6	199	{
f1557ceb MCC	200	outb(power,io);
	201	udelay(4);
	202
1da177e4 LT	203	return !(inb(io) & mo_st);
	204	}
	205
	206	static int get_tune(__u16 io)
4286c6f6	207	{
f1557ceb MCC	208	outb(power+clk,io);
	209	udelay(4);
	210
1da177e4 LT	211	return !(inb(io) & mo_st);
	212	}
	213
	214
06470ed6 MCC	215	static int vidioc_querycap (struct file file, void priv,
	216	struct v4l2_capability *v)
	217	{
	218	strlcpy(v->driver, "radio-maxiradio", sizeof (v->driver));
	219	strlcpy(v->card, "Maxi Radio FM2000 radio", sizeof (v->card));
	220	sprintf(v->bus_info,"ISA");
	221	v->version = RADIO_VERSION;
	222	v->capabilities = V4L2_CAP_TUNER;
	223
	224	return 0;
	225	}
	226
	227	static int vidioc_g_tuner (struct file file, void priv,
	228	struct v4l2_tuner *v)
1da177e4	229	{
c170ecf4	230	struct radio_device *card = video_drvdata(file);
1da177e4	231
06470ed6 MCC	232	if (v->index > 0)
06470ed6 MCC	233	return -EINVAL;
e84fef6b	234
06470ed6 MCC	235	memset(v,0,sizeof(*v));
	236	strcpy(v->name, "FM");
	237	v->type = V4L2_TUNER_RADIO;
4286c6f6	238
06470ed6 MCC	239	v->rangelow=FREQ_LO;
	240	v->rangehigh=FREQ_HI;
	241	v->rxsubchans =V4L2_TUNER_SUB_MONO\|V4L2_TUNER_SUB_STEREO;
	242	v->capability=V4L2_TUNER_CAP_LOW;
	243	if(get_stereo(card->io))
	244	v->audmode = V4L2_TUNER_MODE_STEREO;
	245	else
	246	v->audmode = V4L2_TUNER_MODE_MONO;
	247	v->signal=0xffff*get_tune(card->io);
4286c6f6	248
06470ed6 MCC	249	return 0;
06470ed6 MCC	250	}
e84fef6b	251
06470ed6 MCC	252	static int vidioc_s_tuner (struct file file, void priv,
	253	struct v4l2_tuner *v)
	254	{
	255	if (v->index > 0)
	256	return -EINVAL;
4286c6f6	257
06470ed6 MCC	258	return 0;
06470ed6 MCC	259	}
e84fef6b	260
140dcc46 MCC	261	static int vidioc_g_audio (struct file file, void priv,
	262	struct v4l2_audio *a)
	263	{
	264	if (a->index > 1)
	265	return -EINVAL;
	266
b61f8d69	267	strcpy(a->name, "FM");
140dcc46 MCC	268	a->capability = V4L2_AUDCAP_STEREO;
	269	return 0;
	270	}
	271
a0c05ab9 MCC	272	static int vidioc_g_input(struct file filp, void priv, unsigned int *i)
	273	{
	274	*i = 0;
f1557ceb	275
a0c05ab9 MCC	276	return 0;
	277	}
	278
	279	static int vidioc_s_input(struct file filp, void priv, unsigned int i)
	280	{
	281	if (i != 0)
	282	return -EINVAL;
f1557ceb	283
a0c05ab9 MCC	284	return 0;
	285	}
	286
	287
140dcc46 MCC	288	static int vidioc_s_audio (struct file file, void priv,
	289	struct v4l2_audio *a)
	290	{
	291	if (a->index != 0)
	292	return -EINVAL;
	293
	294	return 0;
	295	}
	296
06470ed6 MCC	297	static int vidioc_s_frequency (struct file file, void priv,
	298	struct v4l2_frequency *f)
	299	{
c170ecf4	300	struct radio_device *card = video_drvdata(file);
4286c6f6	301
f1557ceb MCC	302	if (f->frequency < FREQ_LO \|\| f->frequency > FREQ_HI) {
	303	dprintk(1, "radio freq (%d.%02d MHz) out of range (%d-%d)\n",
	304	f->frequency / 16000,
	305	f->frequency % 16000 * 100 / 16000,
	306	FREQ_LO / 16000, FREQ_HI / 16000);
	307
06470ed6	308	return -EINVAL;
f1557ceb	309	}
4286c6f6	310
06470ed6	311	card->freq = f->frequency;
f1557ceb	312	set_freq(card->io, card->freq);
06470ed6	313	msleep(125);
e84fef6b	314
06470ed6 MCC	315	return 0;
06470ed6 MCC	316	}
4286c6f6	317
06470ed6 MCC	318	static int vidioc_g_frequency (struct file file, void priv,
	319	struct v4l2_frequency *f)
	320	{
c170ecf4	321	struct radio_device *card = video_drvdata(file);
4286c6f6	322
06470ed6 MCC	323	f->type = V4L2_TUNER_RADIO;
	324	f->frequency = card->freq;
	325
f1557ceb MCC	326	dprintk(4, "radio freq is %d.%02d MHz",
	327	f->frequency / 16000,
	328	f->frequency % 16000 * 100 / 16000);
	329
06470ed6 MCC	330	return 0;
	331	}
	332
	333	static int vidioc_queryctrl (struct file file, void priv,
	334	struct v4l2_queryctrl *qc)
	335	{
	336	int i;
	337
	338	for (i = 0; i < ARRAY_SIZE(radio_qctrl); i++) {
	339	if (qc->id && qc->id == radio_qctrl[i].id) {
	340	memcpy(qc, &(radio_qctrl[i]), sizeof(*qc));
	341	return (0);
e84fef6b	342	}
06470ed6	343	}
f1557ceb	344
06470ed6 MCC	345	return -EINVAL;
06470ed6 MCC	346	}
e84fef6b	347
06470ed6 MCC	348	static int vidioc_g_ctrl (struct file file, void priv,
	349	struct v4l2_control *ctrl)
	350	{
c170ecf4	351	struct radio_device *card = video_drvdata(file);
e84fef6b	352
06470ed6 MCC	353	switch (ctrl->id) {
	354	case V4L2_CID_AUDIO_MUTE:
	355	ctrl->value=card->muted;
	356	return (0);
1da177e4	357	}
f1557ceb	358
06470ed6	359	return -EINVAL;
1da177e4 LT	360	}
1da177e4 LT	361
06470ed6 MCC	362	static int vidioc_s_ctrl (struct file file, void priv,
06470ed6 MCC	363	struct v4l2_control *ctrl)
1da177e4	364	{
c170ecf4	365	struct radio_device *card = video_drvdata(file);
4286c6f6	366
06470ed6 MCC	367	switch (ctrl->id) {
	368	case V4L2_CID_AUDIO_MUTE:
	369	card->muted = ctrl->value;
	370	if(card->muted)
	371	turn_power(card->io, 0);
	372	else
f1557ceb	373	set_freq(card->io, card->freq);
06470ed6 MCC	374	return 0;
06470ed6 MCC	375	}
f1557ceb	376
06470ed6	377	return -EINVAL;
1da177e4 LT	378	}
1da177e4 LT	379
a399810c	380	static const struct v4l2_ioctl_ops maxiradio_ioctl_ops = {
06470ed6 MCC	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	394
a399810c	395	static struct video_device maxiradio_radio = {
aa5e90af HV	396	.name = "Maxi Radio FM2000 radio",
	397	.fops = &maxiradio_fops,
	398	.ioctl_ops = &maxiradio_ioctl_ops,
	399	.release = video_device_release_empty,
a399810c HV	400	};
a399810c HV	401
1da177e4 LT	402	static int __devinit maxiradio_init_one(struct pci_dev pdev, const struct pci_device_id ent)
	403	{
	404	if(!request_region(pci_resource_start(pdev, 0),
4286c6f6 MCC	405	pci_resource_len(pdev, 0), "Maxi Radio FM 2000")) {
	406	printk(KERN_ERR "radio-maxiradio: can't reserve I/O ports\n");
	407	goto err_out;
1da177e4 LT	408	}
	409
	410	if (pci_enable_device(pdev))
4286c6f6	411	goto err_out_free_region;
1da177e4 LT	412
1da177e4 LT	413	radio_unit.io = pci_resource_start(pdev, 0);
3593cab5	414	mutex_init(&radio_unit.lock);
601e9444	415	video_set_drvdata(&maxiradio_radio, &radio_unit);
1da177e4	416
cba99ae8	417	if (video_register_device(&maxiradio_radio, VFL_TYPE_RADIO, radio_nr) < 0) {
4286c6f6 MCC	418	printk("radio-maxiradio: can't register device!");
4286c6f6 MCC	419	goto err_out_free_region;
1da177e4 LT	420	}
	421
	422	printk(KERN_INFO "radio-maxiradio: version "
	423	DRIVER_VERSION
	424	" time "
	425	__TIME__ " "
	426	__DATE__
	427	"\n");
	428
	429	printk(KERN_INFO "radio-maxiradio: found Guillemot MAXI Radio device (io = 0x%x)\n",
	430	radio_unit.io);
	431	return 0;
	432
	433	err_out_free_region:
	434	release_region(pci_resource_start(pdev, 0), pci_resource_len(pdev, 0));
	435	err_out:
	436	return -ENODEV;
	437	}
	438
	439	static void __devexit maxiradio_remove_one(struct pci_dev *pdev)
	440	{
	441	video_unregister_device(&maxiradio_radio);
	442	release_region(pci_resource_start(pdev, 0), pci_resource_len(pdev, 0));
	443	}
	444
	445	static struct pci_device_id maxiradio_pci_tbl[] = {
	446	{ PCI_VENDOR_ID_GUILLEMOT, PCI_DEVICE_ID_GUILLEMOT_MAXIRADIO,
	447	PCI_ANY_ID, PCI_ANY_ID, },
	448	{ 0,}
	449	};
	450
	451	MODULE_DEVICE_TABLE(pci, maxiradio_pci_tbl);
	452
	453	static struct pci_driver maxiradio_driver = {
	454	.name = "radio-maxiradio",
	455	.id_table = maxiradio_pci_tbl,
	456	.probe = maxiradio_init_one,
	457	.remove = __devexit_p(maxiradio_remove_one),
	458	};
	459
	460	static int __init maxiradio_radio_init(void)
	461	{
9bfab8ce	462	return pci_register_driver(&maxiradio_driver);
1da177e4 LT	463	}
	464
	465	static void __exit maxiradio_radio_exit(void)
	466	{
	467	pci_unregister_driver(&maxiradio_driver);
	468	}
	469
	470	module_init(maxiradio_radio_init);
	471	module_exit(maxiradio_radio_exit);
06470ed6 MCC	472
	473	MODULE_AUTHOR("Dimitromanolakis Apostolos, apdim@grecian.net");
	474	MODULE_DESCRIPTION("Radio driver for the Guillemot Maxi Radio FM2000 radio.");
	475	MODULE_LICENSE("GPL");
	476
	477	module_param_named(debug,maxiradio_radio.debug, int, 0644);
	478	MODULE_PARM_DESC(debug,"activates debug info");