[net-next-2.6.git] / drivers / media / radio / radio-sf16fmi.c

/* SF16-FMI and SF16-FMP radio driver for Linux radio support
 * heavily based on rtrack driver...
 * (c) 1997 M. Kirkwood
 * (c) 1998 Petr Vandrovec, vandrove@vc.cvut.cz
 *
 * Fitted to new interface by Alan Cox <alan@lxorguk.ukuu.org.uk>
 * Made working and cleaned up functions <mikael.hedin@irf.se>
 * Support for ISAPnP by Ladislav Michl <ladis@psi.cz>
 *
 * Notes on the hardware
 *
 *  Frequency control is done digitally -- ie out(port,encodefreq(95.8));
 *  No volume control - only mute/unmute - you have to use line volume
 *  control on SB-part of SF16-FMI/SF16-FMP
 *
 * Converted to V4L2 API by Mauro Carvalho Chehab <mchehab@infradead.org>
 */

#include <linux/version.h>
#include <linux/kernel.h>	/* __setup			*/
#include <linux/module.h>	/* Modules 			*/
#include <linux/init.h>		/* Initdata			*/
#include <linux/ioport.h>	/* request_region		*/
#include <linux/delay.h>	/* udelay			*/
#include <linux/isapnp.h>
#include <linux/mutex.h>
#include <linux/videodev2.h>	/* kernel radio structs		*/
#include <linux/io.h>		/* outb, outb_p			*/
#include <media/v4l2-device.h>
#include <media/v4l2-ioctl.h>

MODULE_AUTHOR("Petr Vandrovec, vandrove@vc.cvut.cz and M. Kirkwood");
MODULE_DESCRIPTION("A driver for the SF16-FMI and SF16-FMP radio.");
MODULE_LICENSE("GPL");

static int io = -1;
static int radio_nr = -1;

module_param(io, int, 0);
MODULE_PARM_DESC(io, "I/O address of the SF16-FMI or SF16-FMP card (0x284 or 0x384)");
module_param(radio_nr, int, 0);

#define RADIO_VERSION KERNEL_VERSION(0, 0, 2)

struct fmi
{
	struct v4l2_device v4l2_dev;
	struct video_device vdev;
	int io;
	bool mute;
	unsigned long curfreq; /* freq in kHz */
	struct mutex lock;
};

static struct fmi fmi_card;
static struct pnp_dev *dev;

/* freq is in 1/16 kHz to internal number, hw precision is 50 kHz */
/* It is only useful to give freq in interval of 800 (=0.05Mhz),
 * other bits will be truncated, e.g 92.7400016 -> 92.7, but
 * 92.7400017 -> 92.75
 */
#define RSF16_ENCODE(x)	((x) / 800 + 214)
#define RSF16_MINFREQ (87 * 16000)
#define RSF16_MAXFREQ (108 * 16000)

static void outbits(int bits, unsigned int data, int io)
{
	while (bits--) {
		if (data & 1) {
			outb(5, io);
			udelay(6);
			outb(7, io);
			udelay(6);
		} else {
			outb(1, io);
			udelay(6);
			outb(3, io);
			udelay(6);
		}
		data >>= 1;
	}
}

static inline void fmi_mute(struct fmi *fmi)
{
	mutex_lock(&fmi->lock);
	outb(0x00, fmi->io);
	mutex_unlock(&fmi->lock);
}

static inline void fmi_unmute(struct fmi *fmi)
{
	mutex_lock(&fmi->lock);
	outb(0x08, fmi->io);
	mutex_unlock(&fmi->lock);
}

static inline int fmi_setfreq(struct fmi *fmi, unsigned long freq)
{
	mutex_lock(&fmi->lock);
	fmi->curfreq = freq;

	outbits(16, RSF16_ENCODE(freq), fmi->io);
	outbits(8, 0xC0, fmi->io);
	msleep(143);		/* was schedule_timeout(HZ/7) */
	mutex_unlock(&fmi->lock);
	if (!fmi->mute)
		fmi_unmute(fmi);
	return 0;
}

static inline int fmi_getsigstr(struct fmi *fmi)
{
	int val;
	int res;

	mutex_lock(&fmi->lock);
	val = fmi->mute ? 0x00 : 0x08;	/* mute/unmute */
	outb(val, fmi->io);
	outb(val | 0x10, fmi->io);
	msleep(143); 		/* was schedule_timeout(HZ/7) */
	res = (int)inb(fmi->io + 1);
	outb(val, fmi->io);

	mutex_unlock(&fmi->lock);
	return (res & 2) ? 0 : 0xFFFF;
}

static int vidioc_querycap(struct file *file, void  *priv,
					struct v4l2_capability *v)
{
	strlcpy(v->driver, "radio-sf16fmi", sizeof(v->driver));
	strlcpy(v->card, "SF16-FMx radio", sizeof(v->card));
	strlcpy(v->bus_info, "ISA", sizeof(v->bus_info));
	v->version = RADIO_VERSION;
	v->capabilities = V4L2_CAP_TUNER | V4L2_CAP_RADIO;
	return 0;
}

static int vidioc_g_tuner(struct file *file, void *priv,
					struct v4l2_tuner *v)
{
	struct fmi *fmi = video_drvdata(file);

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

	strlcpy(v->name, "FM", sizeof(v->name));
	v->type = V4L2_TUNER_RADIO;
	v->rangelow = RSF16_MINFREQ;
	v->rangehigh = RSF16_MAXFREQ;
	v->rxsubchans = V4L2_TUNER_SUB_MONO | V4L2_TUNER_SUB_STEREO;
	v->capability = V4L2_TUNER_CAP_STEREO | V4L2_TUNER_CAP_LOW;
	v->audmode = V4L2_TUNER_MODE_STEREO;
	v->signal = fmi_getsigstr(fmi);
	return 0;
}

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

static int vidioc_s_frequency(struct file *file, void *priv,
					struct v4l2_frequency *f)
{
	struct fmi *fmi = video_drvdata(file);

	if (f->tuner != 0 || f->type != V4L2_TUNER_RADIO)
		return -EINVAL;
	if (f->frequency < RSF16_MINFREQ ||
			f->frequency > RSF16_MAXFREQ)
		return -EINVAL;
	/* rounding in steps of 800 to match the freq
	   that will be used */
	fmi_setfreq(fmi, (f->frequency / 800) * 800);
	return 0;
}

static int vidioc_g_frequency(struct file *file, void *priv,
					struct v4l2_frequency *f)
{
	struct fmi *fmi = video_drvdata(file);

	if (f->tuner != 0)
		return -EINVAL;
	f->type = V4L2_TUNER_RADIO;
	f->frequency = fmi->curfreq;
	return 0;
}

static int vidioc_queryctrl(struct file *file, void *priv,
					struct v4l2_queryctrl *qc)
{
	switch (qc->id) {
	case V4L2_CID_AUDIO_MUTE:
		return v4l2_ctrl_query_fill(qc, 0, 1, 1, 1);
	}
	return -EINVAL;
}

static int vidioc_g_ctrl(struct file *file, void *priv,
					struct v4l2_control *ctrl)
{
	struct fmi *fmi = video_drvdata(file);

	switch (ctrl->id) {
	case V4L2_CID_AUDIO_MUTE:
		ctrl->value = fmi->mute;
		return 0;
	}
	return -EINVAL;
}

static int vidioc_s_ctrl(struct file *file, void *priv,
					struct v4l2_control *ctrl)
{
	struct fmi *fmi = video_drvdata(file);

	switch (ctrl->id) {
	case V4L2_CID_AUDIO_MUTE:
		if (ctrl->value)
			fmi_mute(fmi);
		else
			fmi_unmute(fmi);
		fmi->mute = ctrl->value;
		return 0;
	}
	return -EINVAL;
}

static int vidioc_g_input(struct file *filp, void *priv, unsigned int *i)
{
	*i = 0;
	return 0;
}

static int vidioc_s_input(struct file *filp, void *priv, unsigned int i)
{
	return i ? -EINVAL : 0;
}

static int vidioc_g_audio(struct file *file, void *priv,
					struct v4l2_audio *a)
{
	a->index = 0;
	strlcpy(a->name, "Radio", sizeof(a->name));
	a->capability = V4L2_AUDCAP_STEREO;
	return 0;
}

static int vidioc_s_audio(struct file *file, void *priv,
					struct v4l2_audio *a)
{
	return a->index ? -EINVAL : 0;
}

static const struct v4l2_file_operations fmi_fops = {
	.owner		= THIS_MODULE,
	.ioctl		= video_ioctl2,
};

static const struct v4l2_ioctl_ops fmi_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,
};

/* ladis: this is my card. does any other types exist? */
static struct isapnp_device_id id_table[] __devinitdata = {
	{	ISAPNP_ANY_ID, ISAPNP_ANY_ID,
		ISAPNP_VENDOR('M','F','R'), ISAPNP_FUNCTION(0xad10), 0},
	{	ISAPNP_CARD_END, },
};

MODULE_DEVICE_TABLE(isapnp, id_table);

static int __init isapnp_fmi_probe(void)
{
	int i = 0;

	while (id_table[i].card_vendor != 0 && dev == NULL) {
		dev = pnp_find_dev(NULL, id_table[i].vendor,
				   id_table[i].function, NULL);
		i++;
	}

	if (!dev)
		return -ENODEV;
	if (pnp_device_attach(dev) < 0)
		return -EAGAIN;
	if (pnp_activate_dev(dev) < 0) {
		printk(KERN_ERR "radio-sf16fmi: PnP configure failed (out of resources?)\n");
		pnp_device_detach(dev);
		return -ENOMEM;
	}
	if (!pnp_port_valid(dev, 0)) {
		pnp_device_detach(dev);
		return -ENODEV;
	}

	i = pnp_port_start(dev, 0);
	printk(KERN_INFO "radio-sf16fmi: PnP reports card at %#x\n", i);

	return i;
}

static int __init fmi_init(void)
{
	struct fmi *fmi = &fmi_card;
	struct v4l2_device *v4l2_dev = &fmi->v4l2_dev;
	int res;

	if (io < 0)
		io = isapnp_fmi_probe();
	strlcpy(v4l2_dev->name, "sf16fmi", sizeof(v4l2_dev->name));
	fmi->io = io;
	if (fmi->io < 0) {
		v4l2_err(v4l2_dev, "No PnP card found.\n");
		return fmi->io;
	}
	if (!request_region(io, 2, "radio-sf16fmi")) {
		v4l2_err(v4l2_dev, "port 0x%x already in use\n", fmi->io);
		pnp_device_detach(dev);
		return -EBUSY;
	}

	res = v4l2_device_register(NULL, v4l2_dev);
	if (res < 0) {
		release_region(fmi->io, 2);
		pnp_device_detach(dev);
		v4l2_err(v4l2_dev, "Could not register v4l2_device\n");
		return res;
	}

	strlcpy(fmi->vdev.name, v4l2_dev->name, sizeof(fmi->vdev.name));
	fmi->vdev.v4l2_dev = v4l2_dev;
	fmi->vdev.fops = &fmi_fops;
	fmi->vdev.ioctl_ops = &fmi_ioctl_ops;
	fmi->vdev.release = video_device_release_empty;
	video_set_drvdata(&fmi->vdev, fmi);

	mutex_init(&fmi->lock);

	if (video_register_device(&fmi->vdev, VFL_TYPE_RADIO, radio_nr) < 0) {
		v4l2_device_unregister(v4l2_dev);
		release_region(fmi->io, 2);
		pnp_device_detach(dev);
		return -EINVAL;
	}

	v4l2_info(v4l2_dev, "card driver at 0x%x\n", fmi->io);
	/* mute card - prevents noisy bootups */
	fmi_mute(fmi);
	return 0;
}

static void __exit fmi_exit(void)
{
	struct fmi *fmi = &fmi_card;

	video_unregister_device(&fmi->vdev);
	v4l2_device_unregister(&fmi->v4l2_dev);
	release_region(fmi->io, 2);
	if (dev)
		pnp_device_detach(dev);
}

module_init(fmi_init);
module_exit(fmi_exit);
Commit	Line	Data
4b830374	1	/* SF16-FMI and SF16-FMP radio driver for Linux radio support
1da177e4 LT	2	* heavily based on rtrack driver...
	3	* (c) 1997 M. Kirkwood
	4	* (c) 1998 Petr Vandrovec, vandrove@vc.cvut.cz
	5	*
d9b01449	6	* Fitted to new interface by Alan Cox <alan@lxorguk.ukuu.org.uk>
1da177e4 LT	7	* Made working and cleaned up functions <mikael.hedin@irf.se>
	8	* Support for ISAPnP by Ladislav Michl <ladis@psi.cz>
	9	*
	10	* Notes on the hardware
	11	*
	12	* Frequency control is done digitally -- ie out(port,encodefreq(95.8));
	13	* No volume control - only mute/unmute - you have to use line volume
4b830374	14	* control on SB-part of SF16-FMI/SF16-FMP
4286c6f6	15	*
a2ef73af	16	* Converted to V4L2 API by Mauro Carvalho Chehab <mchehab@infradead.org>
1da177e4 LT	17	*/
1da177e4 LT	18
2cd885aa	19	#include <linux/version.h>
1da177e4 LT	20	#include <linux/kernel.h> /* __setup */
	21	#include <linux/module.h> /* Modules */
	22	#include <linux/init.h> /* Initdata */
fb911ee8	23	#include <linux/ioport.h> /* request_region */
1da177e4	24	#include <linux/delay.h> /* udelay */
1da177e4	25	#include <linux/isapnp.h>
3593cab5	26	#include <linux/mutex.h>
c41269fd HV	27	#include <linux/videodev2.h> /* kernel radio structs */
c41269fd HV	28	#include <linux/io.h> /* outb, outb_p */
c41269fd HV	29	#include <media/v4l2-device.h>
c41269fd HV	30	#include <media/v4l2-ioctl.h>
1da177e4	31
c41269fd	32	MODULE_AUTHOR("Petr Vandrovec, vandrove@vc.cvut.cz and M. Kirkwood");
4b830374	33	MODULE_DESCRIPTION("A driver for the SF16-FMI and SF16-FMP radio.");
c41269fd	34	MODULE_LICENSE("GPL");
a2ef73af	35
c41269fd HV	36	static int io = -1;
	37	static int radio_nr = -1;
	38
	39	module_param(io, int, 0);
4b830374	40	MODULE_PARM_DESC(io, "I/O address of the SF16-FMI or SF16-FMP card (0x284 or 0x384)");
c41269fd HV	41	module_param(radio_nr, int, 0);
	42
	43	#define RADIO_VERSION KERNEL_VERSION(0, 0, 2)
a2ef73af	44
c41269fd	45	struct fmi
1da177e4	46	{
c41269fd HV	47	struct v4l2_device v4l2_dev;
	48	struct video_device vdev;
	49	int io;
4b830374	50	bool mute;
4286c6f6	51	unsigned long curfreq; /* freq in kHz */
c41269fd	52	struct mutex lock;
1da177e4 LT	53	};
1da177e4 LT	54
c41269fd HV	55	static struct fmi fmi_card;
c41269fd HV	56	static struct pnp_dev *dev;
1da177e4 LT	57
1da177e4 LT	58	/* freq is in 1/16 kHz to internal number, hw precision is 50 kHz */
1d80db56	59	/* It is only useful to give freq in interval of 800 (=0.05Mhz),
4286c6f6	60	* other bits will be truncated, e.g 92.7400016 -> 92.7, but
1da177e4 LT	61	* 92.7400017 -> 92.75
1da177e4 LT	62	*/
c41269fd HV	63	#define RSF16_ENCODE(x) ((x) / 800 + 214)
	64	#define RSF16_MINFREQ (87 * 16000)
	65	#define RSF16_MAXFREQ (108 * 16000)
1da177e4	66
c41269fd	67	static void outbits(int bits, unsigned int data, int io)
1da177e4	68	{
c41269fd HV	69	while (bits--) {
	70	if (data & 1) {
	71	outb(5, io);
1da177e4	72	udelay(6);
c41269fd	73	outb(7, io);
1da177e4 LT	74	udelay(6);
1da177e4 LT	75	} else {
c41269fd	76	outb(1, io);
1da177e4	77	udelay(6);
c41269fd	78	outb(3, io);
1da177e4 LT	79	udelay(6);
1da177e4 LT	80	}
c41269fd	81	data >>= 1;
1da177e4 LT	82	}
	83	}
	84
c41269fd	85	static inline void fmi_mute(struct fmi *fmi)
1da177e4	86	{
c41269fd HV	87	mutex_lock(&fmi->lock);
	88	outb(0x00, fmi->io);
	89	mutex_unlock(&fmi->lock);
1da177e4 LT	90	}
1da177e4 LT	91
c41269fd	92	static inline void fmi_unmute(struct fmi *fmi)
1da177e4	93	{
c41269fd HV	94	mutex_lock(&fmi->lock);
	95	outb(0x08, fmi->io);
	96	mutex_unlock(&fmi->lock);
1da177e4 LT	97	}
1da177e4 LT	98
c41269fd	99	static inline int fmi_setfreq(struct fmi *fmi, unsigned long freq)
1da177e4	100	{
c41269fd HV	101	mutex_lock(&fmi->lock);
c41269fd HV	102	fmi->curfreq = freq;
1da177e4	103
c41269fd HV	104	outbits(16, RSF16_ENCODE(freq), fmi->io);
c41269fd HV	105	outbits(8, 0xC0, fmi->io);
1da177e4	106	msleep(143); /* was schedule_timeout(HZ/7) */
c41269fd	107	mutex_unlock(&fmi->lock);
4b830374	108	if (!fmi->mute)
c41269fd	109	fmi_unmute(fmi);
1da177e4 LT	110	return 0;
	111	}
	112
c41269fd	113	static inline int fmi_getsigstr(struct fmi *fmi)
1da177e4 LT	114	{
	115	int val;
	116	int res;
4286c6f6	117
c41269fd	118	mutex_lock(&fmi->lock);
4b830374	119	val = fmi->mute ? 0x00 : 0x08; /* mute/unmute */
c41269fd HV	120	outb(val, fmi->io);
c41269fd HV	121	outb(val \| 0x10, fmi->io);
1da177e4	122	msleep(143); /* was schedule_timeout(HZ/7) */
c41269fd HV	123	res = (int)inb(fmi->io + 1);
c41269fd HV	124	outb(val, fmi->io);
4286c6f6	125
c41269fd	126	mutex_unlock(&fmi->lock);
1da177e4 LT	127	return (res & 2) ? 0 : 0xFFFF;
	128	}
	129
c123b867 DL	130	static int vidioc_querycap(struct file file, void priv,
c123b867 DL	131	struct v4l2_capability *v)
1da177e4	132	{
c123b867 DL	133	strlcpy(v->driver, "radio-sf16fmi", sizeof(v->driver));
c123b867 DL	134	strlcpy(v->card, "SF16-FMx radio", sizeof(v->card));
c41269fd	135	strlcpy(v->bus_info, "ISA", sizeof(v->bus_info));
c123b867	136	v->version = RADIO_VERSION;
c41269fd	137	v->capabilities = V4L2_CAP_TUNER \| V4L2_CAP_RADIO;
c123b867 DL	138	return 0;
	139	}
	140
	141	static int vidioc_g_tuner(struct file file, void priv,
	142	struct v4l2_tuner *v)
	143	{
c41269fd	144	struct fmi *fmi = video_drvdata(file);
c123b867 DL	145
	146	if (v->index > 0)
	147	return -EINVAL;
	148
c41269fd	149	strlcpy(v->name, "FM", sizeof(v->name));
c123b867	150	v->type = V4L2_TUNER_RADIO;
1d80db56 HV	151	v->rangelow = RSF16_MINFREQ;
1d80db56 HV	152	v->rangehigh = RSF16_MAXFREQ;
dc47b778	153	v->rxsubchans = V4L2_TUNER_SUB_MONO \| V4L2_TUNER_SUB_STEREO;
38092a44	154	v->capability = V4L2_TUNER_CAP_STEREO \| V4L2_TUNER_CAP_LOW;
c123b867 DL	155	v->audmode = V4L2_TUNER_MODE_STEREO;
	156	v->signal = fmi_getsigstr(fmi);
	157	return 0;
	158	}
4286c6f6	159
c123b867 DL	160	static int vidioc_s_tuner(struct file file, void priv,
	161	struct v4l2_tuner *v)
	162	{
c41269fd	163	return v->index ? -EINVAL : 0;
c123b867	164	}
a2ef73af	165
c123b867 DL	166	static int vidioc_s_frequency(struct file file, void priv,
	167	struct v4l2_frequency *f)
	168	{
c41269fd	169	struct fmi *fmi = video_drvdata(file);
c123b867	170
a3a9e287 HV	171	if (f->tuner != 0 \|\| f->type != V4L2_TUNER_RADIO)
a3a9e287 HV	172	return -EINVAL;
c123b867	173	if (f->frequency < RSF16_MINFREQ \|\|
c41269fd	174	f->frequency > RSF16_MAXFREQ)
c123b867	175	return -EINVAL;
c41269fd HV	176	/* rounding in steps of 800 to match the freq
	177	that will be used */
	178	fmi_setfreq(fmi, (f->frequency / 800) * 800);
c123b867 DL	179	return 0;
c123b867 DL	180	}
a2ef73af	181
c123b867 DL	182	static int vidioc_g_frequency(struct file file, void priv,
	183	struct v4l2_frequency *f)
	184	{
c41269fd	185	struct fmi *fmi = video_drvdata(file);
a2ef73af	186
a3a9e287 HV	187	if (f->tuner != 0)
a3a9e287 HV	188	return -EINVAL;
c123b867 DL	189	f->type = V4L2_TUNER_RADIO;
c123b867 DL	190	f->frequency = fmi->curfreq;
c123b867 DL	191	return 0;
c123b867 DL	192	}
a2ef73af	193
c123b867 DL	194	static int vidioc_queryctrl(struct file file, void priv,
	195	struct v4l2_queryctrl *qc)
	196	{
c41269fd HV	197	switch (qc->id) {
	198	case V4L2_CID_AUDIO_MUTE:
	199	return v4l2_ctrl_query_fill(qc, 0, 1, 1, 1);
c123b867 DL	200	}
	201	return -EINVAL;
	202	}
a2ef73af	203
c123b867 DL	204	static int vidioc_g_ctrl(struct file file, void priv,
	205	struct v4l2_control *ctrl)
	206	{
c41269fd	207	struct fmi *fmi = video_drvdata(file);
a2ef73af	208
c123b867 DL	209	switch (ctrl->id) {
c123b867 DL	210	case V4L2_CID_AUDIO_MUTE:
4b830374	211	ctrl->value = fmi->mute;
c123b867	212	return 0;
1da177e4	213	}
c123b867 DL	214	return -EINVAL;
	215	}
	216
	217	static int vidioc_s_ctrl(struct file file, void priv,
	218	struct v4l2_control *ctrl)
	219	{
c41269fd	220	struct fmi *fmi = video_drvdata(file);
c123b867 DL	221
	222	switch (ctrl->id) {
	223	case V4L2_CID_AUDIO_MUTE:
	224	if (ctrl->value)
c41269fd	225	fmi_mute(fmi);
c123b867	226	else
c41269fd	227	fmi_unmute(fmi);
4b830374	228	fmi->mute = ctrl->value;
c123b867 DL	229	return 0;
	230	}
	231	return -EINVAL;
	232	}
	233
c123b867	234	static int vidioc_g_input(struct file filp, void priv, unsigned int *i)
1da177e4	235	{
c123b867 DL	236	*i = 0;
	237	return 0;
	238	}
	239
	240	static int vidioc_s_input(struct file filp, void priv, unsigned int i)
	241	{
c41269fd	242	return i ? -EINVAL : 0;
c123b867 DL	243	}
c123b867 DL	244
c41269fd	245	static int vidioc_g_audio(struct file file, void priv,
c123b867 DL	246	struct v4l2_audio *a)
c123b867 DL	247	{
c41269fd HV	248	a->index = 0;
	249	strlcpy(a->name, "Radio", sizeof(a->name));
	250	a->capability = V4L2_AUDCAP_STEREO;
c123b867	251	return 0;
1da177e4 LT	252	}
1da177e4 LT	253
c41269fd HV	254	static int vidioc_s_audio(struct file file, void priv,
	255	struct v4l2_audio *a)
	256	{
	257	return a->index ? -EINVAL : 0;
	258	}
1da177e4	259
bec43661	260	static const struct v4l2_file_operations fmi_fops = {
1da177e4	261	.owner = THIS_MODULE,
c123b867	262	.ioctl = video_ioctl2,
1da177e4 LT	263	};
1da177e4 LT	264
a399810c	265	static const struct v4l2_ioctl_ops fmi_ioctl_ops = {
c123b867 DL	266	.vidioc_querycap = vidioc_querycap,
	267	.vidioc_g_tuner = vidioc_g_tuner,
	268	.vidioc_s_tuner = vidioc_s_tuner,
	269	.vidioc_g_audio = vidioc_g_audio,
	270	.vidioc_s_audio = vidioc_s_audio,
	271	.vidioc_g_input = vidioc_g_input,
	272	.vidioc_s_input = vidioc_s_input,
	273	.vidioc_g_frequency = vidioc_g_frequency,
	274	.vidioc_s_frequency = vidioc_s_frequency,
	275	.vidioc_queryctrl = vidioc_queryctrl,
	276	.vidioc_g_ctrl = vidioc_g_ctrl,
	277	.vidioc_s_ctrl = vidioc_s_ctrl,
1da177e4 LT	278	};
	279
	280	/* ladis: this is my card. does any other types exist? */
	281	static struct isapnp_device_id id_table[] __devinitdata = {
	282	{ ISAPNP_ANY_ID, ISAPNP_ANY_ID,
	283	ISAPNP_VENDOR('M','F','R'), ISAPNP_FUNCTION(0xad10), 0},
	284	{ ISAPNP_CARD_END, },
	285	};
	286
	287	MODULE_DEVICE_TABLE(isapnp, id_table);
	288
a999337b	289	static int __init isapnp_fmi_probe(void)
1da177e4 LT	290	{
	291	int i = 0;
	292
	293	while (id_table[i].card_vendor != 0 && dev == NULL) {
	294	dev = pnp_find_dev(NULL, id_table[i].vendor,
	295	id_table[i].function, NULL);
	296	i++;
	297	}
	298
	299	if (!dev)
	300	return -ENODEV;
	301	if (pnp_device_attach(dev) < 0)
	302	return -EAGAIN;
	303	if (pnp_activate_dev(dev) < 0) {
c41269fd	304	printk(KERN_ERR "radio-sf16fmi: PnP configure failed (out of resources?)\n");
1da177e4 LT	305	pnp_device_detach(dev);
	306	return -ENOMEM;
	307	}
	308	if (!pnp_port_valid(dev, 0)) {
	309	pnp_device_detach(dev);
	310	return -ENODEV;
	311	}
	312
	313	i = pnp_port_start(dev, 0);
c41269fd	314	printk(KERN_INFO "radio-sf16fmi: PnP reports card at %#x\n", i);
1da177e4 LT	315
	316	return i;
	317	}
	318
	319	static int __init fmi_init(void)
	320	{
c41269fd HV	321	struct fmi *fmi = &fmi_card;
	322	struct v4l2_device *v4l2_dev = &fmi->v4l2_dev;
	323	int res;
	324
1da177e4 LT	325	if (io < 0)
1da177e4 LT	326	io = isapnp_fmi_probe();
c41269fd HV	327	strlcpy(v4l2_dev->name, "sf16fmi", sizeof(v4l2_dev->name));
	328	fmi->io = io;
	329	if (fmi->io < 0) {
	330	v4l2_err(v4l2_dev, "No PnP card found.\n");
	331	return fmi->io;
1da177e4 LT	332	}
1da177e4 LT	333	if (!request_region(io, 2, "radio-sf16fmi")) {
c41269fd	334	v4l2_err(v4l2_dev, "port 0x%x already in use\n", fmi->io);
e08a8c9d	335	pnp_device_detach(dev);
1da177e4 LT	336	return -EBUSY;
	337	}
	338
c41269fd HV	339	res = v4l2_device_register(NULL, v4l2_dev);
	340	if (res < 0) {
	341	release_region(fmi->io, 2);
	342	pnp_device_detach(dev);
	343	v4l2_err(v4l2_dev, "Could not register v4l2_device\n");
	344	return res;
	345	}
	346
c41269fd HV	347	strlcpy(fmi->vdev.name, v4l2_dev->name, sizeof(fmi->vdev.name));
	348	fmi->vdev.v4l2_dev = v4l2_dev;
	349	fmi->vdev.fops = &fmi_fops;
	350	fmi->vdev.ioctl_ops = &fmi_ioctl_ops;
	351	fmi->vdev.release = video_device_release_empty;
	352	video_set_drvdata(&fmi->vdev, fmi);
4286c6f6	353
c41269fd	354	mutex_init(&fmi->lock);
4286c6f6	355
c41269fd HV	356	if (video_register_device(&fmi->vdev, VFL_TYPE_RADIO, radio_nr) < 0) {
	357	v4l2_device_unregister(v4l2_dev);
	358	release_region(fmi->io, 2);
	359	pnp_device_detach(dev);
1da177e4 LT	360	return -EINVAL;
1da177e4 LT	361	}
4286c6f6	362
c41269fd	363	v4l2_info(v4l2_dev, "card driver at 0x%x\n", fmi->io);
1da177e4	364	/* mute card - prevents noisy bootups */
c41269fd	365	fmi_mute(fmi);
1da177e4 LT	366	return 0;
	367	}
	368
c41269fd	369	static void __exit fmi_exit(void)
1da177e4	370	{
c41269fd HV	371	struct fmi *fmi = &fmi_card;
	372
	373	video_unregister_device(&fmi->vdev);
	374	v4l2_device_unregister(&fmi->v4l2_dev);
	375	release_region(fmi->io, 2);
1da177e4 LT	376	if (dev)
	377	pnp_device_detach(dev);
	378	}
	379
	380	module_init(fmi_init);
c41269fd	381	module_exit(fmi_exit);