[GitHub/mt8127/android_kernel_alcatel_ttab.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;
bool pnp_attached;

/* 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,
	.unlocked_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, i;
	int probe_ports[] = { 0, 0x284, 0x384 };

	if (io < 0) {
		for (i = 0; i < ARRAY_SIZE(probe_ports); i++) {
			io = probe_ports[i];
			if (io == 0) {
				io = isapnp_fmi_probe();
				if (io < 0)
					continue;
				pnp_attached = 1;
			}
			if (!request_region(io, 2, "radio-sf16fmi")) {
				if (pnp_attached)
					pnp_device_detach(dev);
				io = -1;
				continue;
			}
			if (pnp_attached ||
			    ((inb(io) & 0xf9) == 0xf9 && (inb(io) & 0x4) == 0))
				break;
			release_region(io, 2);
			io = -1;
		}
	} else {
		if (!request_region(io, 2, "radio-sf16fmi")) {
			printk(KERN_ERR "radio-sf16fmi: port %#x already in use\n", io);
			return -EBUSY;
		}
		if (inb(io) == 0xff) {
			printk(KERN_ERR "radio-sf16fmi: card not present at %#x\n", io);
			release_region(io, 2);
			return -ENODEV;
		}
	}
	if (io < 0) {
		printk(KERN_ERR "radio-sf16fmi: no cards found\n");
		return -ENODEV;
	}

	strlcpy(v4l2_dev->name, "sf16fmi", sizeof(v4l2_dev->name));
	fmi->io = io;

	res = v4l2_device_register(NULL, v4l2_dev);
	if (res < 0) {
		release_region(fmi->io, 2);
		if (pnp_attached)
			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);

	/* mute card - prevents noisy bootups */
	fmi_mute(fmi);

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

	v4l2_info(v4l2_dev, "card driver at 0x%x\n", fmi->io);
	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_attached)
		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;
67cabf50	57	bool pnp_attached;
1da177e4 LT	58
1da177e4 LT	59	/* freq is in 1/16 kHz to internal number, hw precision is 50 kHz */
1d80db56	60	/* It is only useful to give freq in interval of 800 (=0.05Mhz),
4286c6f6	61	* other bits will be truncated, e.g 92.7400016 -> 92.7, but
1da177e4 LT	62	* 92.7400017 -> 92.75
1da177e4 LT	63	*/
c41269fd HV	64	#define RSF16_ENCODE(x) ((x) / 800 + 214)
	65	#define RSF16_MINFREQ (87 * 16000)
	66	#define RSF16_MAXFREQ (108 * 16000)
1da177e4	67
c41269fd	68	static void outbits(int bits, unsigned int data, int io)
1da177e4	69	{
c41269fd HV	70	while (bits--) {
	71	if (data & 1) {
	72	outb(5, io);
1da177e4	73	udelay(6);
c41269fd	74	outb(7, io);
1da177e4 LT	75	udelay(6);
1da177e4 LT	76	} else {
c41269fd	77	outb(1, io);
1da177e4	78	udelay(6);
c41269fd	79	outb(3, io);
1da177e4 LT	80	udelay(6);
1da177e4 LT	81	}
c41269fd	82	data >>= 1;
1da177e4 LT	83	}
	84	}
	85
c41269fd	86	static inline void fmi_mute(struct fmi *fmi)
1da177e4	87	{
c41269fd HV	88	mutex_lock(&fmi->lock);
	89	outb(0x00, fmi->io);
	90	mutex_unlock(&fmi->lock);
1da177e4 LT	91	}
1da177e4 LT	92
c41269fd	93	static inline void fmi_unmute(struct fmi *fmi)
1da177e4	94	{
c41269fd HV	95	mutex_lock(&fmi->lock);
	96	outb(0x08, fmi->io);
	97	mutex_unlock(&fmi->lock);
1da177e4 LT	98	}
1da177e4 LT	99
c41269fd	100	static inline int fmi_setfreq(struct fmi *fmi, unsigned long freq)
1da177e4	101	{
c41269fd HV	102	mutex_lock(&fmi->lock);
c41269fd HV	103	fmi->curfreq = freq;
1da177e4	104
c41269fd HV	105	outbits(16, RSF16_ENCODE(freq), fmi->io);
c41269fd HV	106	outbits(8, 0xC0, fmi->io);
1da177e4	107	msleep(143); /* was schedule_timeout(HZ/7) */
c41269fd	108	mutex_unlock(&fmi->lock);
4b830374	109	if (!fmi->mute)
c41269fd	110	fmi_unmute(fmi);
1da177e4 LT	111	return 0;
	112	}
	113
c41269fd	114	static inline int fmi_getsigstr(struct fmi *fmi)
1da177e4 LT	115	{
	116	int val;
	117	int res;
4286c6f6	118
c41269fd	119	mutex_lock(&fmi->lock);
4b830374	120	val = fmi->mute ? 0x00 : 0x08; /* mute/unmute */
c41269fd HV	121	outb(val, fmi->io);
c41269fd HV	122	outb(val \| 0x10, fmi->io);
1da177e4	123	msleep(143); /* was schedule_timeout(HZ/7) */
c41269fd HV	124	res = (int)inb(fmi->io + 1);
c41269fd HV	125	outb(val, fmi->io);
4286c6f6	126
c41269fd	127	mutex_unlock(&fmi->lock);
1da177e4 LT	128	return (res & 2) ? 0 : 0xFFFF;
	129	}
	130
c123b867 DL	131	static int vidioc_querycap(struct file file, void priv,
c123b867 DL	132	struct v4l2_capability *v)
1da177e4	133	{
c123b867 DL	134	strlcpy(v->driver, "radio-sf16fmi", sizeof(v->driver));
c123b867 DL	135	strlcpy(v->card, "SF16-FMx radio", sizeof(v->card));
c41269fd	136	strlcpy(v->bus_info, "ISA", sizeof(v->bus_info));
c123b867	137	v->version = RADIO_VERSION;
c41269fd	138	v->capabilities = V4L2_CAP_TUNER \| V4L2_CAP_RADIO;
c123b867 DL	139	return 0;
	140	}
	141
	142	static int vidioc_g_tuner(struct file file, void priv,
	143	struct v4l2_tuner *v)
	144	{
c41269fd	145	struct fmi *fmi = video_drvdata(file);
c123b867 DL	146
	147	if (v->index > 0)
	148	return -EINVAL;
	149
c41269fd	150	strlcpy(v->name, "FM", sizeof(v->name));
c123b867	151	v->type = V4L2_TUNER_RADIO;
1d80db56 HV	152	v->rangelow = RSF16_MINFREQ;
1d80db56 HV	153	v->rangehigh = RSF16_MAXFREQ;
dc47b778	154	v->rxsubchans = V4L2_TUNER_SUB_MONO \| V4L2_TUNER_SUB_STEREO;
38092a44	155	v->capability = V4L2_TUNER_CAP_STEREO \| V4L2_TUNER_CAP_LOW;
c123b867 DL	156	v->audmode = V4L2_TUNER_MODE_STEREO;
	157	v->signal = fmi_getsigstr(fmi);
	158	return 0;
	159	}
4286c6f6	160
c123b867 DL	161	static int vidioc_s_tuner(struct file file, void priv,
	162	struct v4l2_tuner *v)
	163	{
c41269fd	164	return v->index ? -EINVAL : 0;
c123b867	165	}
a2ef73af	166
c123b867 DL	167	static int vidioc_s_frequency(struct file file, void priv,
	168	struct v4l2_frequency *f)
	169	{
c41269fd	170	struct fmi *fmi = video_drvdata(file);
c123b867	171
a3a9e287 HV	172	if (f->tuner != 0 \|\| f->type != V4L2_TUNER_RADIO)
a3a9e287 HV	173	return -EINVAL;
c123b867	174	if (f->frequency < RSF16_MINFREQ \|\|
c41269fd	175	f->frequency > RSF16_MAXFREQ)
c123b867	176	return -EINVAL;
c41269fd HV	177	/* rounding in steps of 800 to match the freq
	178	that will be used */
	179	fmi_setfreq(fmi, (f->frequency / 800) * 800);
c123b867 DL	180	return 0;
c123b867 DL	181	}
a2ef73af	182
c123b867 DL	183	static int vidioc_g_frequency(struct file file, void priv,
	184	struct v4l2_frequency *f)
	185	{
c41269fd	186	struct fmi *fmi = video_drvdata(file);
a2ef73af	187
a3a9e287 HV	188	if (f->tuner != 0)
a3a9e287 HV	189	return -EINVAL;
c123b867 DL	190	f->type = V4L2_TUNER_RADIO;
c123b867 DL	191	f->frequency = fmi->curfreq;
c123b867 DL	192	return 0;
c123b867 DL	193	}
a2ef73af	194
c123b867 DL	195	static int vidioc_queryctrl(struct file file, void priv,
	196	struct v4l2_queryctrl *qc)
	197	{
c41269fd HV	198	switch (qc->id) {
	199	case V4L2_CID_AUDIO_MUTE:
	200	return v4l2_ctrl_query_fill(qc, 0, 1, 1, 1);
c123b867 DL	201	}
	202	return -EINVAL;
	203	}
a2ef73af	204
c123b867 DL	205	static int vidioc_g_ctrl(struct file file, void priv,
	206	struct v4l2_control *ctrl)
	207	{
c41269fd	208	struct fmi *fmi = video_drvdata(file);
a2ef73af	209
c123b867 DL	210	switch (ctrl->id) {
c123b867 DL	211	case V4L2_CID_AUDIO_MUTE:
4b830374	212	ctrl->value = fmi->mute;
c123b867	213	return 0;
1da177e4	214	}
c123b867 DL	215	return -EINVAL;
	216	}
	217
	218	static int vidioc_s_ctrl(struct file file, void priv,
	219	struct v4l2_control *ctrl)
	220	{
c41269fd	221	struct fmi *fmi = video_drvdata(file);
c123b867 DL	222
	223	switch (ctrl->id) {
	224	case V4L2_CID_AUDIO_MUTE:
	225	if (ctrl->value)
c41269fd	226	fmi_mute(fmi);
c123b867	227	else
c41269fd	228	fmi_unmute(fmi);
4b830374	229	fmi->mute = ctrl->value;
c123b867 DL	230	return 0;
	231	}
	232	return -EINVAL;
	233	}
	234
c123b867	235	static int vidioc_g_input(struct file filp, void priv, unsigned int *i)
1da177e4	236	{
c123b867 DL	237	*i = 0;
	238	return 0;
	239	}
	240
	241	static int vidioc_s_input(struct file filp, void priv, unsigned int i)
	242	{
c41269fd	243	return i ? -EINVAL : 0;
c123b867 DL	244	}
c123b867 DL	245
c41269fd	246	static int vidioc_g_audio(struct file file, void priv,
c123b867 DL	247	struct v4l2_audio *a)
c123b867 DL	248	{
c41269fd HV	249	a->index = 0;
	250	strlcpy(a->name, "Radio", sizeof(a->name));
	251	a->capability = V4L2_AUDCAP_STEREO;
c123b867	252	return 0;
1da177e4 LT	253	}
1da177e4 LT	254
c41269fd HV	255	static int vidioc_s_audio(struct file file, void priv,
	256	struct v4l2_audio *a)
	257	{
	258	return a->index ? -EINVAL : 0;
	259	}
1da177e4	260
bec43661	261	static const struct v4l2_file_operations fmi_fops = {
1da177e4	262	.owner = THIS_MODULE,
32958fdd	263	.unlocked_ioctl = video_ioctl2,
1da177e4 LT	264	};
1da177e4 LT	265
a399810c	266	static const struct v4l2_ioctl_ops fmi_ioctl_ops = {
c123b867 DL	267	.vidioc_querycap = vidioc_querycap,
	268	.vidioc_g_tuner = vidioc_g_tuner,
	269	.vidioc_s_tuner = vidioc_s_tuner,
	270	.vidioc_g_audio = vidioc_g_audio,
	271	.vidioc_s_audio = vidioc_s_audio,
	272	.vidioc_g_input = vidioc_g_input,
	273	.vidioc_s_input = vidioc_s_input,
	274	.vidioc_g_frequency = vidioc_g_frequency,
	275	.vidioc_s_frequency = vidioc_s_frequency,
	276	.vidioc_queryctrl = vidioc_queryctrl,
	277	.vidioc_g_ctrl = vidioc_g_ctrl,
	278	.vidioc_s_ctrl = vidioc_s_ctrl,
1da177e4 LT	279	};
	280
	281	/* ladis: this is my card. does any other types exist? */
	282	static struct isapnp_device_id id_table[] __devinitdata = {
	283	{ ISAPNP_ANY_ID, ISAPNP_ANY_ID,
	284	ISAPNP_VENDOR('M','F','R'), ISAPNP_FUNCTION(0xad10), 0},
	285	{ ISAPNP_CARD_END, },
	286	};
	287
	288	MODULE_DEVICE_TABLE(isapnp, id_table);
	289
a999337b	290	static int __init isapnp_fmi_probe(void)
1da177e4 LT	291	{
	292	int i = 0;
	293
	294	while (id_table[i].card_vendor != 0 && dev == NULL) {
	295	dev = pnp_find_dev(NULL, id_table[i].vendor,
	296	id_table[i].function, NULL);
	297	i++;
	298	}
	299
	300	if (!dev)
	301	return -ENODEV;
	302	if (pnp_device_attach(dev) < 0)
	303	return -EAGAIN;
	304	if (pnp_activate_dev(dev) < 0) {
c41269fd	305	printk(KERN_ERR "radio-sf16fmi: PnP configure failed (out of resources?)\n");
1da177e4 LT	306	pnp_device_detach(dev);
	307	return -ENOMEM;
	308	}
	309	if (!pnp_port_valid(dev, 0)) {
	310	pnp_device_detach(dev);
	311	return -ENODEV;
	312	}
	313
	314	i = pnp_port_start(dev, 0);
c41269fd	315	printk(KERN_INFO "radio-sf16fmi: PnP reports card at %#x\n", i);
1da177e4 LT	316
	317	return i;
	318	}
	319
	320	static int __init fmi_init(void)
	321	{
c41269fd HV	322	struct fmi *fmi = &fmi_card;
c41269fd HV	323	struct v4l2_device *v4l2_dev = &fmi->v4l2_dev;
67cabf50 OZ	324	int res, i;
	325	int probe_ports[] = { 0, 0x284, 0x384 };
	326
	327	if (io < 0) {
	328	for (i = 0; i < ARRAY_SIZE(probe_ports); i++) {
	329	io = probe_ports[i];
	330	if (io == 0) {
	331	io = isapnp_fmi_probe();
	332	if (io < 0)
	333	continue;
	334	pnp_attached = 1;
	335	}
	336	if (!request_region(io, 2, "radio-sf16fmi")) {
	337	if (pnp_attached)
	338	pnp_device_detach(dev);
	339	io = -1;
	340	continue;
	341	}
	342	if (pnp_attached \|\|
	343	((inb(io) & 0xf9) == 0xf9 && (inb(io) & 0x4) == 0))
	344	break;
	345	release_region(io, 2);
	346	io = -1;
	347	}
	348	} else {
	349	if (!request_region(io, 2, "radio-sf16fmi")) {
	350	printk(KERN_ERR "radio-sf16fmi: port %#x already in use\n", io);
	351	return -EBUSY;
	352	}
	353	if (inb(io) == 0xff) {
	354	printk(KERN_ERR "radio-sf16fmi: card not present at %#x\n", io);
	355	release_region(io, 2);
	356	return -ENODEV;
	357	}
	358	}
	359	if (io < 0) {
	360	printk(KERN_ERR "radio-sf16fmi: no cards found\n");
	361	return -ENODEV;
	362	}
c41269fd	363
c41269fd HV	364	strlcpy(v4l2_dev->name, "sf16fmi", sizeof(v4l2_dev->name));
c41269fd HV	365	fmi->io = io;
1da177e4	366
c41269fd HV	367	res = v4l2_device_register(NULL, v4l2_dev);
	368	if (res < 0) {
	369	release_region(fmi->io, 2);
67cabf50 OZ	370	if (pnp_attached)
67cabf50 OZ	371	pnp_device_detach(dev);
c41269fd HV	372	v4l2_err(v4l2_dev, "Could not register v4l2_device\n");
	373	return res;
	374	}
	375
c41269fd HV	376	strlcpy(fmi->vdev.name, v4l2_dev->name, sizeof(fmi->vdev.name));
	377	fmi->vdev.v4l2_dev = v4l2_dev;
	378	fmi->vdev.fops = &fmi_fops;
	379	fmi->vdev.ioctl_ops = &fmi_ioctl_ops;
	380	fmi->vdev.release = video_device_release_empty;
	381	video_set_drvdata(&fmi->vdev, fmi);
4286c6f6	382
c41269fd	383	mutex_init(&fmi->lock);
4286c6f6	384
32958fdd HV	385	/* mute card - prevents noisy bootups */
	386	fmi_mute(fmi);
	387
c41269fd HV	388	if (video_register_device(&fmi->vdev, VFL_TYPE_RADIO, radio_nr) < 0) {
	389	v4l2_device_unregister(v4l2_dev);
	390	release_region(fmi->io, 2);
67cabf50 OZ	391	if (pnp_attached)
67cabf50 OZ	392	pnp_device_detach(dev);
1da177e4 LT	393	return -EINVAL;
1da177e4 LT	394	}
4286c6f6	395
c41269fd	396	v4l2_info(v4l2_dev, "card driver at 0x%x\n", fmi->io);
1da177e4 LT	397	return 0;
	398	}
	399
c41269fd	400	static void __exit fmi_exit(void)
1da177e4	401	{
c41269fd HV	402	struct fmi *fmi = &fmi_card;
	403
	404	video_unregister_device(&fmi->vdev);
	405	v4l2_device_unregister(&fmi->v4l2_dev);
	406	release_region(fmi->io, 2);
67cabf50	407	if (dev && pnp_attached)
1da177e4 LT	408	pnp_device_detach(dev);
	409	}
	410
	411	module_init(fmi_init);
c41269fd	412	module_exit(fmi_exit);