[linux-2.6-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>
#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);


#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,
#ifdef CONFIG_COMPAT
	.compat_ioctl	= v4l_compat_ioctl32,
#endif
	.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 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,
};

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>
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
	88
	89	#define FREQ_LO 50*16000
	90	#define FREQ_HI 150*16000
	91
	92	#define FREQ_IF 171200 /* 10.716000 /
	93	#define FREQ_STEP 200 /* 12.516 /
	94
f1557ceb MCC	95	/* (x==fmhz161000) -> bits */
	96	#define FREQ2BITS(x) ((( (unsigned int)(x)+FREQ_IF+(FREQ_STEP<<1)) \
	97	/(FREQ_STEP<<2))<<2)
1da177e4 LT	98
	99	#define BITS2FREQ(x) ((x) * FREQ_STEP - FREQ_IF)
	100
	101
fa027c2a	102	static const struct file_operations maxiradio_fops = {
1da177e4 LT	103	.owner = THIS_MODULE,
	104	.open = video_exclusive_open,
	105	.release = video_exclusive_release,
06470ed6	106	.ioctl = video_ioctl2,
078ff795	107	#ifdef CONFIG_COMPAT
0d0fbf81	108	.compat_ioctl = v4l_compat_ioctl32,
078ff795	109	#endif
1da177e4 LT	110	.llseek = no_llseek,
1da177e4 LT	111	};
1da177e4 LT	112
	113	static struct radio_device
	114	{
	115	__u16 io, /* base of radio io */
	116	muted, /* VIDEO_AUDIO_MUTE */
4286c6f6	117	stereo, /* VIDEO_TUNER_STEREO_ON */
1da177e4	118	tuned; /* signal strength (0 or 0xffff) */
4286c6f6	119
1da177e4	120	unsigned long freq;
4286c6f6	121
3593cab5	122	struct mutex lock;
712642b8 MCC	123	} radio_unit = {
	124	.muted =1,
	125	.freq = FREQ_LO,
	126	};
1da177e4 LT	127
	128	static void outbit(unsigned long bit, __u16 io)
	129	{
f1557ceb	130	if (bit != 0)
1da177e4 LT	131	{
	132	outb( power\|wren\|data ,io); udelay(4);
	133	outb( power\|wren\|data\|clk ,io); udelay(4);
	134	outb( power\|wren\|data ,io); udelay(4);
	135	}
4286c6f6	136	else
1da177e4 LT	137	{
	138	outb( power\|wren ,io); udelay(4);
	139	outb( power\|wren\|clk ,io); udelay(4);
	140	outb( power\|wren ,io); udelay(4);
	141	}
	142	}
	143
	144	static void turn_power(__u16 io, int p)
	145	{
f1557ceb MCC	146	if (p != 0) {
	147	dprintk(1, "Radio powered on\n");
	148	outb(power, io);
	149	} else {
	150	dprintk(1, "Radio powered off\n");
	151	outb(0,io);
	152	}
1da177e4 LT	153	}
1da177e4 LT	154
f1557ceb	155	static void set_freq(__u16 io, __u32 freq)
1da177e4 LT	156	{
	157	unsigned long int si;
	158	int bl;
f1557ceb	159	int data = FREQ2BITS(freq);
4286c6f6	160
1da177e4 LT	161	/* TEA5757 shift register bits (see pdf) */
1da177e4 LT	162
4286c6f6	163	outbit(0,io); // 24 search
1da177e4	164	outbit(1,io); // 23 search up/down
4286c6f6	165
1da177e4 LT	166	outbit(0,io); // 22 stereo/mono
	167
	168	outbit(0,io); // 21 band
	169	outbit(0,io); // 20 band (only 00=FM works I think)
	170
	171	outbit(0,io); // 19 port ?
	172	outbit(0,io); // 18 port ?
4286c6f6	173
1da177e4 LT	174	outbit(0,io); // 17 search level
1da177e4 LT	175	outbit(0,io); // 16 search level
4286c6f6	176
1da177e4	177	si = 0x8000;
f1557ceb MCC	178	for (bl = 1; bl <= 16 ; bl++) {
	179	outbit(data & si,io);
	180	si >>=1;
	181	}
4286c6f6	182
f1557ceb MCC	183	dprintk(1, "Radio freq set to %d.%02d MHz\n",
	184	freq / 16000,
	185	freq % 16000 * 100 / 16000);
	186
	187	turn_power(io, 1);
1da177e4 LT	188	}
	189
	190	static int get_stereo(__u16 io)
4286c6f6	191	{
f1557ceb MCC	192	outb(power,io);
	193	udelay(4);
	194
1da177e4 LT	195	return !(inb(io) & mo_st);
	196	}
	197
	198	static int get_tune(__u16 io)
4286c6f6	199	{
f1557ceb MCC	200	outb(power+clk,io);
	201	udelay(4);
	202
1da177e4 LT	203	return !(inb(io) & mo_st);
	204	}
	205
	206
06470ed6 MCC	207	static int vidioc_querycap (struct file file, void priv,
	208	struct v4l2_capability *v)
	209	{
	210	strlcpy(v->driver, "radio-maxiradio", sizeof (v->driver));
	211	strlcpy(v->card, "Maxi Radio FM2000 radio", sizeof (v->card));
	212	sprintf(v->bus_info,"ISA");
	213	v->version = RADIO_VERSION;
	214	v->capabilities = V4L2_CAP_TUNER;
	215
	216	return 0;
	217	}
	218
	219	static int vidioc_g_tuner (struct file file, void priv,
	220	struct v4l2_tuner *v)
1da177e4 LT	221	{
	222	struct video_device *dev = video_devdata(file);
	223	struct radio_device *card=dev->priv;
	224
06470ed6 MCC	225	if (v->index > 0)
06470ed6 MCC	226	return -EINVAL;
e84fef6b	227
06470ed6 MCC	228	memset(v,0,sizeof(*v));
	229	strcpy(v->name, "FM");
	230	v->type = V4L2_TUNER_RADIO;
4286c6f6	231
06470ed6 MCC	232	v->rangelow=FREQ_LO;
	233	v->rangehigh=FREQ_HI;
	234	v->rxsubchans =V4L2_TUNER_SUB_MONO\|V4L2_TUNER_SUB_STEREO;
	235	v->capability=V4L2_TUNER_CAP_LOW;
	236	if(get_stereo(card->io))
	237	v->audmode = V4L2_TUNER_MODE_STEREO;
	238	else
	239	v->audmode = V4L2_TUNER_MODE_MONO;
	240	v->signal=0xffff*get_tune(card->io);
4286c6f6	241
06470ed6 MCC	242	return 0;
06470ed6 MCC	243	}
e84fef6b	244
06470ed6 MCC	245	static int vidioc_s_tuner (struct file file, void priv,
	246	struct v4l2_tuner *v)
	247	{
	248	if (v->index > 0)
	249	return -EINVAL;
4286c6f6	250
06470ed6 MCC	251	return 0;
06470ed6 MCC	252	}
e84fef6b	253
140dcc46 MCC	254	static int vidioc_g_audio (struct file file, void priv,
	255	struct v4l2_audio *a)
	256	{
	257	if (a->index > 1)
	258	return -EINVAL;
	259
b61f8d69	260	strcpy(a->name, "FM");
140dcc46 MCC	261	a->capability = V4L2_AUDCAP_STEREO;
	262	return 0;
	263	}
	264
a0c05ab9 MCC	265	static int vidioc_g_input(struct file filp, void priv, unsigned int *i)
	266	{
	267	*i = 0;
f1557ceb	268
a0c05ab9 MCC	269	return 0;
	270	}
	271
	272	static int vidioc_s_input(struct file filp, void priv, unsigned int i)
	273	{
	274	if (i != 0)
	275	return -EINVAL;
f1557ceb	276
a0c05ab9 MCC	277	return 0;
	278	}
	279
	280
140dcc46 MCC	281	static int vidioc_s_audio (struct file file, void priv,
	282	struct v4l2_audio *a)
	283	{
	284	if (a->index != 0)
	285	return -EINVAL;
	286
	287	return 0;
	288	}
	289
06470ed6 MCC	290	static int vidioc_s_frequency (struct file file, void priv,
	291	struct v4l2_frequency *f)
	292	{
	293	struct video_device *dev = video_devdata(file);
	294	struct radio_device *card=dev->priv;
4286c6f6	295
f1557ceb MCC	296	if (f->frequency < FREQ_LO \|\| f->frequency > FREQ_HI) {
	297	dprintk(1, "radio freq (%d.%02d MHz) out of range (%d-%d)\n",
	298	f->frequency / 16000,
	299	f->frequency % 16000 * 100 / 16000,
	300	FREQ_LO / 16000, FREQ_HI / 16000);
	301
06470ed6	302	return -EINVAL;
f1557ceb	303	}
4286c6f6	304
06470ed6	305	card->freq = f->frequency;
f1557ceb	306	set_freq(card->io, card->freq);
06470ed6	307	msleep(125);
e84fef6b	308
06470ed6 MCC	309	return 0;
06470ed6 MCC	310	}
4286c6f6	311
06470ed6 MCC	312	static int vidioc_g_frequency (struct file file, void priv,
	313	struct v4l2_frequency *f)
	314	{
	315	struct video_device *dev = video_devdata(file);
	316	struct radio_device *card=dev->priv;
4286c6f6	317
06470ed6 MCC	318	f->type = V4L2_TUNER_RADIO;
	319	f->frequency = card->freq;
	320
f1557ceb MCC	321	dprintk(4, "radio freq is %d.%02d MHz",
	322	f->frequency / 16000,
	323	f->frequency % 16000 * 100 / 16000);
	324
06470ed6 MCC	325	return 0;
	326	}
	327
	328	static int vidioc_queryctrl (struct file file, void priv,
	329	struct v4l2_queryctrl *qc)
	330	{
	331	int i;
	332
	333	for (i = 0; i < ARRAY_SIZE(radio_qctrl); i++) {
	334	if (qc->id && qc->id == radio_qctrl[i].id) {
	335	memcpy(qc, &(radio_qctrl[i]), sizeof(*qc));
	336	return (0);
e84fef6b	337	}
06470ed6	338	}
f1557ceb	339
06470ed6 MCC	340	return -EINVAL;
06470ed6 MCC	341	}
e84fef6b	342
06470ed6 MCC	343	static int vidioc_g_ctrl (struct file file, void priv,
	344	struct v4l2_control *ctrl)
	345	{
	346	struct video_device *dev = video_devdata(file);
	347	struct radio_device *card=dev->priv;
e84fef6b	348
06470ed6 MCC	349	switch (ctrl->id) {
	350	case V4L2_CID_AUDIO_MUTE:
	351	ctrl->value=card->muted;
	352	return (0);
1da177e4	353	}
f1557ceb	354
06470ed6	355	return -EINVAL;
1da177e4 LT	356	}
1da177e4 LT	357
06470ed6 MCC	358	static int vidioc_s_ctrl (struct file file, void priv,
06470ed6 MCC	359	struct v4l2_control *ctrl)
1da177e4 LT	360	{
	361	struct video_device *dev = video_devdata(file);
	362	struct radio_device *card=dev->priv;
4286c6f6	363
06470ed6 MCC	364	switch (ctrl->id) {
	365	case V4L2_CID_AUDIO_MUTE:
	366	card->muted = ctrl->value;
	367	if(card->muted)
	368	turn_power(card->io, 0);
	369	else
f1557ceb	370	set_freq(card->io, card->freq);
06470ed6 MCC	371	return 0;
06470ed6 MCC	372	}
f1557ceb	373
06470ed6	374	return -EINVAL;
1da177e4 LT	375	}
1da177e4 LT	376
a399810c	377	static const struct v4l2_ioctl_ops maxiradio_ioctl_ops = {
06470ed6 MCC	378	.vidioc_querycap = vidioc_querycap,
	379	.vidioc_g_tuner = vidioc_g_tuner,
	380	.vidioc_s_tuner = vidioc_s_tuner,
140dcc46 MCC	381	.vidioc_g_audio = vidioc_g_audio,
140dcc46 MCC	382	.vidioc_s_audio = vidioc_s_audio,
a0c05ab9 MCC	383	.vidioc_g_input = vidioc_g_input,
a0c05ab9 MCC	384	.vidioc_s_input = vidioc_s_input,
06470ed6 MCC	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,
06470ed6	390	};
1da177e4	391
a399810c	392	static struct video_device maxiradio_radio = {
a399810c	393	.name = "Maxi Radio FM2000 radio",
a399810c HV	394	.fops = &maxiradio_fops,
	395	.ioctl_ops = &maxiradio_ioctl_ops,
	396	};
	397
1da177e4 LT	398	static int __devinit maxiradio_init_one(struct pci_dev pdev, const struct pci_device_id ent)
	399	{
	400	if(!request_region(pci_resource_start(pdev, 0),
4286c6f6 MCC	401	pci_resource_len(pdev, 0), "Maxi Radio FM 2000")) {
	402	printk(KERN_ERR "radio-maxiradio: can't reserve I/O ports\n");
	403	goto err_out;
1da177e4 LT	404	}
	405
	406	if (pci_enable_device(pdev))
4286c6f6	407	goto err_out_free_region;
1da177e4 LT	408
1da177e4 LT	409	radio_unit.io = pci_resource_start(pdev, 0);
3593cab5	410	mutex_init(&radio_unit.lock);
1da177e4 LT	411	maxiradio_radio.priv = &radio_unit;
1da177e4 LT	412
712642b8	413	if (video_register_device(&maxiradio_radio, VFL_TYPE_RADIO, radio_nr)==-1) {
4286c6f6 MCC	414	printk("radio-maxiradio: can't register device!");
4286c6f6 MCC	415	goto err_out_free_region;
1da177e4 LT	416	}
	417
	418	printk(KERN_INFO "radio-maxiradio: version "
	419	DRIVER_VERSION
	420	" time "
	421	__TIME__ " "
	422	__DATE__
	423	"\n");
	424
	425	printk(KERN_INFO "radio-maxiradio: found Guillemot MAXI Radio device (io = 0x%x)\n",
	426	radio_unit.io);
	427	return 0;
	428
	429	err_out_free_region:
	430	release_region(pci_resource_start(pdev, 0), pci_resource_len(pdev, 0));
	431	err_out:
	432	return -ENODEV;
	433	}
	434
	435	static void __devexit maxiradio_remove_one(struct pci_dev *pdev)
	436	{
	437	video_unregister_device(&maxiradio_radio);
	438	release_region(pci_resource_start(pdev, 0), pci_resource_len(pdev, 0));
	439	}
	440
	441	static struct pci_device_id maxiradio_pci_tbl[] = {
	442	{ PCI_VENDOR_ID_GUILLEMOT, PCI_DEVICE_ID_GUILLEMOT_MAXIRADIO,
	443	PCI_ANY_ID, PCI_ANY_ID, },
	444	{ 0,}
	445	};
	446
	447	MODULE_DEVICE_TABLE(pci, maxiradio_pci_tbl);
	448
	449	static struct pci_driver maxiradio_driver = {
	450	.name = "radio-maxiradio",
	451	.id_table = maxiradio_pci_tbl,
	452	.probe = maxiradio_init_one,
	453	.remove = __devexit_p(maxiradio_remove_one),
	454	};
	455
	456	static int __init maxiradio_radio_init(void)
	457	{
9bfab8ce	458	return pci_register_driver(&maxiradio_driver);
1da177e4 LT	459	}
	460
	461	static void __exit maxiradio_radio_exit(void)
	462	{
	463	pci_unregister_driver(&maxiradio_driver);
	464	}
	465
	466	module_init(maxiradio_radio_init);
	467	module_exit(maxiradio_radio_exit);
06470ed6 MCC	468
	469	MODULE_AUTHOR("Dimitromanolakis Apostolos, apdim@grecian.net");
	470	MODULE_DESCRIPTION("Radio driver for the Guillemot Maxi Radio FM2000 radio.");
	471	MODULE_LICENSE("GPL");
	472
	473	module_param_named(debug,maxiradio_radio.debug, int, 0644);
	474	MODULE_PARM_DESC(debug,"activates debug info");