[deliverable/linux.git] / drivers / media / radio / radio-sf16fmi.c

/* SF16-FMI, SF16-FMP and SF16-FMD 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/SF16-FMD
 *
 * Converted to V4L2 API by Mauro Carvalho Chehab <mchehab@infradead.org>
 */

#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>
#include "lm7000.h"

MODULE_AUTHOR("Petr Vandrovec, vandrove@vc.cvut.cz and M. Kirkwood");
MODULE_DESCRIPTION("A driver for the SF16-FMI, SF16-FMP and SF16-FMD radio.");
MODULE_LICENSE("GPL");
MODULE_VERSION("0.0.3");

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/SF16-FMP/SF16-FMD card (0x284 or 0x384)");
module_param(radio_nr, int, 0);

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;

#define RSF16_MINFREQ (87 * 16000)
#define RSF16_MAXFREQ (108 * 16000)

#define FMI_BIT_TUN_CE		(1 << 0)
#define FMI_BIT_TUN_CLK		(1 << 1)
#define FMI_BIT_TUN_DATA	(1 << 2)
#define FMI_BIT_VOL_SW		(1 << 3)
#define FMI_BIT_TUN_STRQ	(1 << 4)

static void fmi_set_pins(void *handle, u8 pins)
{
	struct fmi *fmi = handle;
	u8 bits = FMI_BIT_TUN_STRQ;

	if (!fmi->mute)
		bits |= FMI_BIT_VOL_SW;

	if (pins & LM7000_DATA)
		bits |= FMI_BIT_TUN_DATA;
	if (pins & LM7000_CLK)
		bits |= FMI_BIT_TUN_CLK;
	if (pins & LM7000_CE)
		bits |= FMI_BIT_TUN_CE;

	mutex_lock(&fmi->lock);
	outb_p(bits, fmi->io);
	mutex_unlock(&fmi->lock);
}

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_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-FMI/FMP/FMD radio", sizeof(v->card));
	strlcpy(v->bus_info, "ISA", sizeof(v->bus_info));
	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,
					const 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 */
	lm7000_set_freq((f->frequency / 800) * 800, fmi, fmi_set_pins);
	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,
					const 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[] = {
		/* SF16-FMI */
	{	ISAPNP_ANY_ID, ISAPNP_ANY_ID,
		ISAPNP_VENDOR('M','F','R'), ISAPNP_FUNCTION(0xad10), 0},
		/* SF16-FMD */
	{	ISAPNP_ANY_ID, ISAPNP_ANY_ID,
		ISAPNP_VENDOR('M','F','R'), ISAPNP_FUNCTION(0xad12), 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
abed623c	1	/* SF16-FMI, SF16-FMP and SF16-FMD 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
abed623c	14	* control on SB-part of SF16-FMI/SF16-FMP/SF16-FMD
4286c6f6	15	*
a2ef73af	16	* Converted to V4L2 API by Mauro Carvalho Chehab <mchehab@infradead.org>
1da177e4 LT	17	*/
	18
	19	#include <linux/kernel.h> /* __setup */
	20	#include <linux/module.h> /* Modules */
	21	#include <linux/init.h> /* Initdata */
fb911ee8	22	#include <linux/ioport.h> /* request_region */
1da177e4	23	#include <linux/delay.h> /* udelay */
1da177e4	24	#include <linux/isapnp.h>
3593cab5	25	#include <linux/mutex.h>
c41269fd HV	26	#include <linux/videodev2.h> /* kernel radio structs */
c41269fd HV	27	#include <linux/io.h> /* outb, outb_p */
c41269fd HV	28	#include <media/v4l2-device.h>
c41269fd HV	29	#include <media/v4l2-ioctl.h>
6b39023a	30	#include "lm7000.h"
1da177e4	31
c41269fd	32	MODULE_AUTHOR("Petr Vandrovec, vandrove@vc.cvut.cz and M. Kirkwood");
abed623c	33	MODULE_DESCRIPTION("A driver for the SF16-FMI, SF16-FMP and SF16-FMD radio.");
c41269fd	34	MODULE_LICENSE("GPL");
29834c1a	35	MODULE_VERSION("0.0.3");
a2ef73af	36
c41269fd HV	37	static int io = -1;
	38	static int radio_nr = -1;
	39
	40	module_param(io, int, 0);
abed623c	41	MODULE_PARM_DESC(io, "I/O address of the SF16-FMI/SF16-FMP/SF16-FMD card (0x284 or 0x384)");
c41269fd HV	42	module_param(radio_nr, int, 0);
c41269fd HV	43
c41269fd	44	struct fmi
1da177e4	45	{
c41269fd HV	46	struct v4l2_device v4l2_dev;
	47	struct video_device vdev;
	48	int io;
4b830374	49	bool mute;
4286c6f6	50	unsigned long curfreq; /* freq in kHz */
c41269fd	51	struct mutex lock;
1da177e4 LT	52	};
1da177e4 LT	53
c41269fd HV	54	static struct fmi fmi_card;
c41269fd HV	55	static struct pnp_dev *dev;
67cabf50	56	bool pnp_attached;
1da177e4	57
c41269fd HV	58	#define RSF16_MINFREQ (87 * 16000)
c41269fd HV	59	#define RSF16_MAXFREQ (108 * 16000)
1da177e4	60
6b39023a OZ	61	#define FMI_BIT_TUN_CE (1 << 0)
	62	#define FMI_BIT_TUN_CLK (1 << 1)
	63	#define FMI_BIT_TUN_DATA (1 << 2)
	64	#define FMI_BIT_VOL_SW (1 << 3)
	65	#define FMI_BIT_TUN_STRQ (1 << 4)
	66
a5133b17	67	static void fmi_set_pins(void *handle, u8 pins)
1da177e4	68	{
6b39023a OZ	69	struct fmi *fmi = handle;
	70	u8 bits = FMI_BIT_TUN_STRQ;
	71
	72	if (!fmi->mute)
	73	bits \|= FMI_BIT_VOL_SW;
	74
	75	if (pins & LM7000_DATA)
	76	bits \|= FMI_BIT_TUN_DATA;
	77	if (pins & LM7000_CLK)
	78	bits \|= FMI_BIT_TUN_CLK;
	79	if (pins & LM7000_CE)
	80	bits \|= FMI_BIT_TUN_CE;
	81
	82	mutex_lock(&fmi->lock);
	83	outb_p(bits, fmi->io);
	84	mutex_unlock(&fmi->lock);
1da177e4 LT	85	}
1da177e4 LT	86
c41269fd	87	static inline void fmi_mute(struct fmi *fmi)
1da177e4	88	{
c41269fd HV	89	mutex_lock(&fmi->lock);
	90	outb(0x00, fmi->io);
	91	mutex_unlock(&fmi->lock);
1da177e4 LT	92	}
1da177e4 LT	93
c41269fd	94	static inline void fmi_unmute(struct fmi *fmi)
1da177e4	95	{
c41269fd HV	96	mutex_lock(&fmi->lock);
	97	outb(0x08, fmi->io);
	98	mutex_unlock(&fmi->lock);
1da177e4 LT	99	}
1da177e4 LT	100
c41269fd	101	static inline int fmi_getsigstr(struct fmi *fmi)
1da177e4 LT	102	{
	103	int val;
	104	int res;
4286c6f6	105
c41269fd	106	mutex_lock(&fmi->lock);
4b830374	107	val = fmi->mute ? 0x00 : 0x08; /* mute/unmute */
c41269fd HV	108	outb(val, fmi->io);
c41269fd HV	109	outb(val \| 0x10, fmi->io);
1da177e4	110	msleep(143); /* was schedule_timeout(HZ/7) */
c41269fd HV	111	res = (int)inb(fmi->io + 1);
c41269fd HV	112	outb(val, fmi->io);
4286c6f6	113
c41269fd	114	mutex_unlock(&fmi->lock);
1da177e4 LT	115	return (res & 2) ? 0 : 0xFFFF;
	116	}
	117
c123b867 DL	118	static int vidioc_querycap(struct file file, void priv,
c123b867 DL	119	struct v4l2_capability *v)
1da177e4	120	{
c123b867	121	strlcpy(v->driver, "radio-sf16fmi", sizeof(v->driver));
abed623c	122	strlcpy(v->card, "SF16-FMI/FMP/FMD radio", sizeof(v->card));
c41269fd	123	strlcpy(v->bus_info, "ISA", sizeof(v->bus_info));
c41269fd	124	v->capabilities = V4L2_CAP_TUNER \| V4L2_CAP_RADIO;
c123b867 DL	125	return 0;
	126	}
	127
	128	static int vidioc_g_tuner(struct file file, void priv,
	129	struct v4l2_tuner *v)
	130	{
c41269fd	131	struct fmi *fmi = video_drvdata(file);
c123b867 DL	132
	133	if (v->index > 0)
	134	return -EINVAL;
	135
c41269fd	136	strlcpy(v->name, "FM", sizeof(v->name));
c123b867	137	v->type = V4L2_TUNER_RADIO;
1d80db56 HV	138	v->rangelow = RSF16_MINFREQ;
1d80db56 HV	139	v->rangehigh = RSF16_MAXFREQ;
dc47b778	140	v->rxsubchans = V4L2_TUNER_SUB_MONO \| V4L2_TUNER_SUB_STEREO;
38092a44	141	v->capability = V4L2_TUNER_CAP_STEREO \| V4L2_TUNER_CAP_LOW;
c123b867 DL	142	v->audmode = V4L2_TUNER_MODE_STEREO;
	143	v->signal = fmi_getsigstr(fmi);
	144	return 0;
	145	}
4286c6f6	146
c123b867 DL	147	static int vidioc_s_tuner(struct file file, void priv,
	148	struct v4l2_tuner *v)
	149	{
c41269fd	150	return v->index ? -EINVAL : 0;
c123b867	151	}
a2ef73af	152
c123b867	153	static int vidioc_s_frequency(struct file file, void priv,
b530a447	154	const struct v4l2_frequency *f)
c123b867	155	{
c41269fd	156	struct fmi *fmi = video_drvdata(file);
c123b867	157
a3a9e287 HV	158	if (f->tuner != 0 \|\| f->type != V4L2_TUNER_RADIO)
a3a9e287 HV	159	return -EINVAL;
c123b867	160	if (f->frequency < RSF16_MINFREQ \|\|
c41269fd	161	f->frequency > RSF16_MAXFREQ)
c123b867	162	return -EINVAL;
c41269fd HV	163	/* rounding in steps of 800 to match the freq
c41269fd HV	164	that will be used */
6b39023a	165	lm7000_set_freq((f->frequency / 800) * 800, fmi, fmi_set_pins);
c123b867 DL	166	return 0;
c123b867 DL	167	}
a2ef73af	168
c123b867 DL	169	static int vidioc_g_frequency(struct file file, void priv,
	170	struct v4l2_frequency *f)
	171	{
c41269fd	172	struct fmi *fmi = video_drvdata(file);
a2ef73af	173
a3a9e287 HV	174	if (f->tuner != 0)
a3a9e287 HV	175	return -EINVAL;
c123b867 DL	176	f->type = V4L2_TUNER_RADIO;
c123b867 DL	177	f->frequency = fmi->curfreq;
c123b867 DL	178	return 0;
c123b867 DL	179	}
a2ef73af	180
c123b867 DL	181	static int vidioc_queryctrl(struct file file, void priv,
	182	struct v4l2_queryctrl *qc)
	183	{
c41269fd HV	184	switch (qc->id) {
	185	case V4L2_CID_AUDIO_MUTE:
	186	return v4l2_ctrl_query_fill(qc, 0, 1, 1, 1);
c123b867 DL	187	}
	188	return -EINVAL;
	189	}
a2ef73af	190
c123b867 DL	191	static int vidioc_g_ctrl(struct file file, void priv,
	192	struct v4l2_control *ctrl)
	193	{
c41269fd	194	struct fmi *fmi = video_drvdata(file);
a2ef73af	195
c123b867 DL	196	switch (ctrl->id) {
c123b867 DL	197	case V4L2_CID_AUDIO_MUTE:
4b830374	198	ctrl->value = fmi->mute;
c123b867	199	return 0;
1da177e4	200	}
c123b867 DL	201	return -EINVAL;
	202	}
	203
	204	static int vidioc_s_ctrl(struct file file, void priv,
	205	struct v4l2_control *ctrl)
	206	{
c41269fd	207	struct fmi *fmi = video_drvdata(file);
c123b867 DL	208
	209	switch (ctrl->id) {
	210	case V4L2_CID_AUDIO_MUTE:
	211	if (ctrl->value)
c41269fd	212	fmi_mute(fmi);
c123b867	213	else
c41269fd	214	fmi_unmute(fmi);
4b830374	215	fmi->mute = ctrl->value;
c123b867 DL	216	return 0;
	217	}
	218	return -EINVAL;
	219	}
	220
c123b867	221	static int vidioc_g_input(struct file filp, void priv, unsigned int *i)
1da177e4	222	{
c123b867 DL	223	*i = 0;
	224	return 0;
	225	}
	226
	227	static int vidioc_s_input(struct file filp, void priv, unsigned int i)
	228	{
c41269fd	229	return i ? -EINVAL : 0;
c123b867 DL	230	}
c123b867 DL	231
c41269fd	232	static int vidioc_g_audio(struct file file, void priv,
c123b867 DL	233	struct v4l2_audio *a)
c123b867 DL	234	{
c41269fd HV	235	a->index = 0;
	236	strlcpy(a->name, "Radio", sizeof(a->name));
	237	a->capability = V4L2_AUDCAP_STEREO;
c123b867	238	return 0;
1da177e4 LT	239	}
1da177e4 LT	240
c41269fd	241	static int vidioc_s_audio(struct file file, void priv,
0e8025b9	242	const struct v4l2_audio *a)
c41269fd HV	243	{
	244	return a->index ? -EINVAL : 0;
	245	}
1da177e4	246
bec43661	247	static const struct v4l2_file_operations fmi_fops = {
1da177e4	248	.owner = THIS_MODULE,
32958fdd	249	.unlocked_ioctl = video_ioctl2,
1da177e4 LT	250	};
1da177e4 LT	251
a399810c	252	static const struct v4l2_ioctl_ops fmi_ioctl_ops = {
c123b867 DL	253	.vidioc_querycap = vidioc_querycap,
	254	.vidioc_g_tuner = vidioc_g_tuner,
	255	.vidioc_s_tuner = vidioc_s_tuner,
	256	.vidioc_g_audio = vidioc_g_audio,
	257	.vidioc_s_audio = vidioc_s_audio,
	258	.vidioc_g_input = vidioc_g_input,
	259	.vidioc_s_input = vidioc_s_input,
	260	.vidioc_g_frequency = vidioc_g_frequency,
	261	.vidioc_s_frequency = vidioc_s_frequency,
	262	.vidioc_queryctrl = vidioc_queryctrl,
	263	.vidioc_g_ctrl = vidioc_g_ctrl,
	264	.vidioc_s_ctrl = vidioc_s_ctrl,
1da177e4 LT	265	};
	266
	267	/* ladis: this is my card. does any other types exist? */
4c62e976	268	static struct isapnp_device_id id_table[] = {
abed623c	269	/* SF16-FMI */
1da177e4 LT	270	{ ISAPNP_ANY_ID, ISAPNP_ANY_ID,
1da177e4 LT	271	ISAPNP_VENDOR('M','F','R'), ISAPNP_FUNCTION(0xad10), 0},
abed623c OZ	272	/* SF16-FMD */
	273	{ ISAPNP_ANY_ID, ISAPNP_ANY_ID,
	274	ISAPNP_VENDOR('M','F','R'), ISAPNP_FUNCTION(0xad12), 0},
1da177e4 LT	275	{ ISAPNP_CARD_END, },
	276	};
	277
	278	MODULE_DEVICE_TABLE(isapnp, id_table);
	279
a999337b	280	static int __init isapnp_fmi_probe(void)
1da177e4 LT	281	{
	282	int i = 0;
	283
	284	while (id_table[i].card_vendor != 0 && dev == NULL) {
	285	dev = pnp_find_dev(NULL, id_table[i].vendor,
	286	id_table[i].function, NULL);
	287	i++;
	288	}
	289
	290	if (!dev)
	291	return -ENODEV;
	292	if (pnp_device_attach(dev) < 0)
	293	return -EAGAIN;
	294	if (pnp_activate_dev(dev) < 0) {
c41269fd	295	printk(KERN_ERR "radio-sf16fmi: PnP configure failed (out of resources?)\n");
1da177e4 LT	296	pnp_device_detach(dev);
	297	return -ENOMEM;
	298	}
	299	if (!pnp_port_valid(dev, 0)) {
	300	pnp_device_detach(dev);
	301	return -ENODEV;
	302	}
	303
	304	i = pnp_port_start(dev, 0);
c41269fd	305	printk(KERN_INFO "radio-sf16fmi: PnP reports card at %#x\n", i);
1da177e4 LT	306
	307	return i;
	308	}
	309
	310	static int __init fmi_init(void)
	311	{
c41269fd HV	312	struct fmi *fmi = &fmi_card;
c41269fd HV	313	struct v4l2_device *v4l2_dev = &fmi->v4l2_dev;
67cabf50 OZ	314	int res, i;
	315	int probe_ports[] = { 0, 0x284, 0x384 };
	316
	317	if (io < 0) {
	318	for (i = 0; i < ARRAY_SIZE(probe_ports); i++) {
	319	io = probe_ports[i];
	320	if (io == 0) {
	321	io = isapnp_fmi_probe();
	322	if (io < 0)
	323	continue;
	324	pnp_attached = 1;
	325	}
	326	if (!request_region(io, 2, "radio-sf16fmi")) {
	327	if (pnp_attached)
	328	pnp_device_detach(dev);
	329	io = -1;
	330	continue;
	331	}
	332	if (pnp_attached \|\|
	333	((inb(io) & 0xf9) == 0xf9 && (inb(io) & 0x4) == 0))
	334	break;
	335	release_region(io, 2);
	336	io = -1;
	337	}
	338	} else {
	339	if (!request_region(io, 2, "radio-sf16fmi")) {
	340	printk(KERN_ERR "radio-sf16fmi: port %#x already in use\n", io);
	341	return -EBUSY;
	342	}
	343	if (inb(io) == 0xff) {
	344	printk(KERN_ERR "radio-sf16fmi: card not present at %#x\n", io);
	345	release_region(io, 2);
	346	return -ENODEV;
	347	}
	348	}
	349	if (io < 0) {
	350	printk(KERN_ERR "radio-sf16fmi: no cards found\n");
	351	return -ENODEV;
	352	}
c41269fd	353
c41269fd HV	354	strlcpy(v4l2_dev->name, "sf16fmi", sizeof(v4l2_dev->name));
c41269fd HV	355	fmi->io = io;
1da177e4	356
c41269fd HV	357	res = v4l2_device_register(NULL, v4l2_dev);
	358	if (res < 0) {
	359	release_region(fmi->io, 2);
67cabf50 OZ	360	if (pnp_attached)
67cabf50 OZ	361	pnp_device_detach(dev);
c41269fd HV	362	v4l2_err(v4l2_dev, "Could not register v4l2_device\n");
	363	return res;
	364	}
	365
c41269fd HV	366	strlcpy(fmi->vdev.name, v4l2_dev->name, sizeof(fmi->vdev.name));
	367	fmi->vdev.v4l2_dev = v4l2_dev;
	368	fmi->vdev.fops = &fmi_fops;
	369	fmi->vdev.ioctl_ops = &fmi_ioctl_ops;
	370	fmi->vdev.release = video_device_release_empty;
	371	video_set_drvdata(&fmi->vdev, fmi);
4286c6f6	372
c41269fd	373	mutex_init(&fmi->lock);
4286c6f6	374
32958fdd HV	375	/* mute card - prevents noisy bootups */
	376	fmi_mute(fmi);
	377
c41269fd HV	378	if (video_register_device(&fmi->vdev, VFL_TYPE_RADIO, radio_nr) < 0) {
	379	v4l2_device_unregister(v4l2_dev);
	380	release_region(fmi->io, 2);
67cabf50 OZ	381	if (pnp_attached)
67cabf50 OZ	382	pnp_device_detach(dev);
1da177e4 LT	383	return -EINVAL;
1da177e4 LT	384	}
4286c6f6	385
c41269fd	386	v4l2_info(v4l2_dev, "card driver at 0x%x\n", fmi->io);
1da177e4 LT	387	return 0;
	388	}
	389
c41269fd	390	static void __exit fmi_exit(void)
1da177e4	391	{
c41269fd HV	392	struct fmi *fmi = &fmi_card;
	393
	394	video_unregister_device(&fmi->vdev);
	395	v4l2_device_unregister(&fmi->v4l2_dev);
	396	release_region(fmi->io, 2);
67cabf50	397	if (dev && pnp_attached)
1da177e4 LT	398	pnp_device_detach(dev);
	399	}
	400
	401	module_init(fmi_init);
c41269fd	402	module_exit(fmi_exit);