[GitHub/mt8127/android_kernel_alcatel_ttab.git] / drivers / media / radio / radio-sf16fmi.c

/* SF16FMI 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 SF16FMI
 *
 * 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/videodev2.h>	/* kernel radio structs		*/
#include <media/v4l2-common.h>
#include <media/v4l2-ioctl.h>
#include <linux/isapnp.h>
#include <asm/io.h>		/* outb, outb_p			*/
#include <asm/uaccess.h>	/* copy to/from user		*/
#include <linux/mutex.h>

#define RADIO_VERSION KERNEL_VERSION(0,0,2)

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,
	}
};

struct fmi_device
{
	unsigned long in_use;
	int port;
	int curvol; /* 1 or 0 */
	unsigned long curfreq; /* freq in kHz */
	__u32 flags;
};

static int io = -1;
static int radio_nr = -1;
static struct pnp_dev *dev = NULL;
static struct mutex lock;

/* freq is in 1/16 kHz to internal number, hw precision is 50 kHz */
/* It is only useful to give freq in intervall 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 port)
{
	while(bits--) {
		if(data & 1) {
			outb(5, port);
			udelay(6);
			outb(7, port);
			udelay(6);
		} else {
			outb(1, port);
			udelay(6);
			outb(3, port);
			udelay(6);
		}
		data>>=1;
	}
}

static inline void fmi_mute(int port)
{
	mutex_lock(&lock);
	outb(0x00, port);
	mutex_unlock(&lock);
}

static inline void fmi_unmute(int port)
{
	mutex_lock(&lock);
	outb(0x08, port);
	mutex_unlock(&lock);
}

static inline int fmi_setfreq(struct fmi_device *dev)
{
	int myport = dev->port;
	unsigned long freq = dev->curfreq;

	mutex_lock(&lock);

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

static inline int fmi_getsigstr(struct fmi_device *dev)
{
	int val;
	int res;
	int myport = dev->port;


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

	mutex_unlock(&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));
	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)
{
	int mult;
	struct fmi_device *fmi = video_drvdata(file);

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

	strcpy(v->name, "FM");
	v->type = V4L2_TUNER_RADIO;
	mult = (fmi->flags & V4L2_TUNER_CAP_LOW) ? 1 : 1000;
	v->rangelow = RSF16_MINFREQ/mult;
	v->rangehigh = RSF16_MAXFREQ/mult;
	v->rxsubchans = V4L2_TUNER_SUB_MONO | V4L2_TUNER_MODE_STEREO;
	v->capability = fmi->flags&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)
{
	if (v->index > 0)
		return -EINVAL;
	return 0;
}

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

	if (!(fmi->flags & V4L2_TUNER_CAP_LOW))
		f->frequency *= 1000;
	if (f->frequency < RSF16_MINFREQ ||
			f->frequency > RSF16_MAXFREQ )
		return -EINVAL;
	/*rounding in steps of 800 to match th freq
	that will be used */
	fmi->curfreq = (f->frequency/800)*800;
	fmi_setfreq(fmi);
	return 0;
}

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

	f->type = V4L2_TUNER_RADIO;
	f->frequency = fmi->curfreq;
	if (!(fmi->flags & V4L2_TUNER_CAP_LOW))
		f->frequency /= 1000;
	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 fmi_device *fmi = video_drvdata(file);

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

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

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

static int vidioc_g_audio(struct file *file, void *priv,
					struct v4l2_audio *a)
{
	if (a->index > 1)
		return -EINVAL;

	strcpy(a->name, "Radio");
	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 struct fmi_device fmi_unit;

static int fmi_exclusive_open(struct file *file)
{
	return test_and_set_bit(0, &fmi_unit.in_use) ? -EBUSY : 0;
}

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

static const struct v4l2_file_operations fmi_fops = {
	.owner		= THIS_MODULE,
	.open           = fmi_exclusive_open,
	.release        = fmi_exclusive_release,
	.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,
};

static struct video_device fmi_radio = {
	.name		= "SF16FMx radio",
	.fops           = &fmi_fops,
	.ioctl_ops 	= &fmi_ioctl_ops,
	.release	= video_device_release_empty,
};

/* 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 ("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 ("radio-sf16fmi: PnP reports card at %#x\n", i);

	return i;
}

static int __init fmi_init(void)
{
	if (io < 0)
		io = isapnp_fmi_probe();
	if (io < 0) {
		printk(KERN_ERR "radio-sf16fmi: No PnP card found.\n");
		return io;
	}
	if (!request_region(io, 2, "radio-sf16fmi")) {
		printk(KERN_ERR "radio-sf16fmi: port 0x%x already in use\n", io);
		pnp_device_detach(dev);
		return -EBUSY;
	}

	fmi_unit.port = io;
	fmi_unit.curvol = 0;
	fmi_unit.curfreq = 0;
	fmi_unit.flags = V4L2_TUNER_CAP_LOW;
	video_set_drvdata(&fmi_radio, &fmi_unit);

	mutex_init(&lock);

	if (video_register_device(&fmi_radio, VFL_TYPE_RADIO, radio_nr) < 0) {
		release_region(io, 2);
		return -EINVAL;
	}

	printk(KERN_INFO "SF16FMx radio card driver at 0x%x\n", io);
	/* mute card - prevents noisy bootups */
	fmi_mute(io);
	return 0;
}

MODULE_AUTHOR("Petr Vandrovec, vandrove@vc.cvut.cz and M. Kirkwood");
MODULE_DESCRIPTION("A driver for the SF16MI radio.");
MODULE_LICENSE("GPL");

module_param(io, int, 0);
MODULE_PARM_DESC(io, "I/O address of the SF16MI card (0x284 or 0x384)");
module_param(radio_nr, int, 0);

static void __exit fmi_cleanup_module(void)
{
	video_unregister_device(&fmi_radio);
	release_region(io, 2);
	if (dev)
		pnp_device_detach(dev);
}

module_init(fmi_init);
module_exit(fmi_cleanup_module);
Commit	Line	Data
1da177e4 LT	1	/* SF16FMI radio driver for Linux radio support
	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
	14	* control on SB-part of SF16FMI
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 */
a2ef73af	25	#include <linux/videodev2.h> /* kernel radio structs */
5e87efa3	26	#include <media/v4l2-common.h>
35ea11ff	27	#include <media/v4l2-ioctl.h>
1da177e4 LT	28	#include <linux/isapnp.h>
	29	#include <asm/io.h> /* outb, outb_p */
	30	#include <asm/uaccess.h> /* copy to/from user */
3593cab5	31	#include <linux/mutex.h>
1da177e4	32
a2ef73af MCC	33	#define RADIO_VERSION KERNEL_VERSION(0,0,2)
	34
	35	static struct v4l2_queryctrl radio_qctrl[] = {
	36	{
	37	.id = V4L2_CID_AUDIO_MUTE,
	38	.name = "Mute",
	39	.minimum = 0,
	40	.maximum = 1,
	41	.default_value = 1,
	42	.type = V4L2_CTRL_TYPE_BOOLEAN,
	43	}
	44	};
	45
1da177e4 LT	46	struct fmi_device
1da177e4 LT	47	{
3ca685aa	48	unsigned long in_use;
1da177e4	49	int port;
4286c6f6 MCC	50	int curvol; /* 1 or 0 */
	51	unsigned long curfreq; /* freq in kHz */
	52	__u32 flags;
1da177e4 LT	53	};
1da177e4 LT	54
4286c6f6	55	static int io = -1;
1da177e4 LT	56	static int radio_nr = -1;
1da177e4 LT	57	static struct pnp_dev *dev = NULL;
3593cab5	58	static struct mutex lock;
1da177e4 LT	59
	60	/* freq is in 1/16 kHz to internal number, hw precision is 50 kHz */
	61	/* It is only useful to give freq in intervall of 800 (=0.05Mhz),
4286c6f6	62	* other bits will be truncated, e.g 92.7400016 -> 92.7, but
1da177e4 LT	63	* 92.7400017 -> 92.75
	64	*/
	65	#define RSF16_ENCODE(x) ((x)/800+214)
	66	#define RSF16_MINFREQ 87*16000
	67	#define RSF16_MAXFREQ 108*16000
	68
	69	static void outbits(int bits, unsigned int data, int port)
	70	{
	71	while(bits--) {
4286c6f6	72	if(data & 1) {
1da177e4 LT	73	outb(5, port);
	74	udelay(6);
	75	outb(7, port);
	76	udelay(6);
	77	} else {
	78	outb(1, port);
	79	udelay(6);
	80	outb(3, port);
	81	udelay(6);
	82	}
	83	data>>=1;
	84	}
	85	}
	86
	87	static inline void fmi_mute(int port)
	88	{
3593cab5	89	mutex_lock(&lock);
1da177e4	90	outb(0x00, port);
3593cab5	91	mutex_unlock(&lock);
1da177e4 LT	92	}
	93
	94	static inline void fmi_unmute(int port)
	95	{
3593cab5	96	mutex_lock(&lock);
1da177e4	97	outb(0x08, port);
3593cab5	98	mutex_unlock(&lock);
1da177e4 LT	99	}
	100
	101	static inline int fmi_setfreq(struct fmi_device *dev)
	102	{
	103	int myport = dev->port;
	104	unsigned long freq = dev->curfreq;
	105
3593cab5	106	mutex_lock(&lock);
1da177e4 LT	107
	108	outbits(16, RSF16_ENCODE(freq), myport);
	109	outbits(8, 0xC0, myport);
	110	msleep(143); /* was schedule_timeout(HZ/7) */
3593cab5	111	mutex_unlock(&lock);
1da177e4 LT	112	if (dev->curvol) fmi_unmute(myport);
	113	return 0;
	114	}
	115
	116	static inline int fmi_getsigstr(struct fmi_device *dev)
	117	{
	118	int val;
	119	int res;
	120	int myport = dev->port;
	121
4286c6f6	122
3593cab5	123	mutex_lock(&lock);
1da177e4 LT	124	val = dev->curvol ? 0x08 : 0x00; /* unmute/mute */
	125	outb(val, myport);
	126	outb(val \| 0x10, myport);
	127	msleep(143); /* was schedule_timeout(HZ/7) */
	128	res = (int)inb(myport+1);
	129	outb(val, myport);
4286c6f6	130
3593cab5	131	mutex_unlock(&lock);
1da177e4 LT	132	return (res & 2) ? 0 : 0xFFFF;
	133	}
	134
c123b867 DL	135	static int vidioc_querycap(struct file file, void priv,
c123b867 DL	136	struct v4l2_capability *v)
1da177e4	137	{
c123b867 DL	138	strlcpy(v->driver, "radio-sf16fmi", sizeof(v->driver));
	139	strlcpy(v->card, "SF16-FMx radio", sizeof(v->card));
	140	sprintf(v->bus_info, "ISA");
	141	v->version = RADIO_VERSION;
	142	v->capabilities = V4L2_CAP_TUNER;
	143	return 0;
	144	}
	145
	146	static int vidioc_g_tuner(struct file file, void priv,
	147	struct v4l2_tuner *v)
	148	{
	149	int mult;
c170ecf4	150	struct fmi_device *fmi = video_drvdata(file);
c123b867 DL	151
	152	if (v->index > 0)
	153	return -EINVAL;
	154
	155	strcpy(v->name, "FM");
	156	v->type = V4L2_TUNER_RADIO;
	157	mult = (fmi->flags & V4L2_TUNER_CAP_LOW) ? 1 : 1000;
	158	v->rangelow = RSF16_MINFREQ/mult;
	159	v->rangehigh = RSF16_MAXFREQ/mult;
	160	v->rxsubchans = V4L2_TUNER_SUB_MONO \| V4L2_TUNER_MODE_STEREO;
	161	v->capability = fmi->flags&V4L2_TUNER_CAP_LOW;
	162	v->audmode = V4L2_TUNER_MODE_STEREO;
	163	v->signal = fmi_getsigstr(fmi);
	164	return 0;
	165	}
4286c6f6	166
c123b867 DL	167	static int vidioc_s_tuner(struct file file, void priv,
	168	struct v4l2_tuner *v)
	169	{
	170	if (v->index > 0)
	171	return -EINVAL;
	172	return 0;
	173	}
a2ef73af	174
c123b867 DL	175	static int vidioc_s_frequency(struct file file, void priv,
	176	struct v4l2_frequency *f)
	177	{
c170ecf4	178	struct fmi_device *fmi = video_drvdata(file);
c123b867 DL	179
	180	if (!(fmi->flags & V4L2_TUNER_CAP_LOW))
	181	f->frequency *= 1000;
	182	if (f->frequency < RSF16_MINFREQ \|\|
	183	f->frequency > RSF16_MAXFREQ )
	184	return -EINVAL;
	185	/*rounding in steps of 800 to match th freq
	186	that will be used */
	187	fmi->curfreq = (f->frequency/800)*800;
	188	fmi_setfreq(fmi);
	189	return 0;
	190	}
a2ef73af	191
c123b867 DL	192	static int vidioc_g_frequency(struct file file, void priv,
	193	struct v4l2_frequency *f)
	194	{
c170ecf4	195	struct fmi_device *fmi = video_drvdata(file);
a2ef73af	196
c123b867 DL	197	f->type = V4L2_TUNER_RADIO;
	198	f->frequency = fmi->curfreq;
	199	if (!(fmi->flags & V4L2_TUNER_CAP_LOW))
	200	f->frequency /= 1000;
	201	return 0;
	202	}
a2ef73af	203
c123b867 DL	204	static int vidioc_queryctrl(struct file file, void priv,
	205	struct v4l2_queryctrl *qc)
	206	{
	207	int i;
a2ef73af	208
c123b867 DL	209	for (i = 0; i < ARRAY_SIZE(radio_qctrl); i++) {
	210	if (qc->id && qc->id == radio_qctrl[i].id) {
	211	memcpy(qc, &(radio_qctrl[i]),
	212	sizeof(*qc));
1da177e4 LT	213	return 0;
1da177e4 LT	214	}
c123b867 DL	215	}
	216	return -EINVAL;
	217	}
a2ef73af	218
c123b867 DL	219	static int vidioc_g_ctrl(struct file file, void priv,
	220	struct v4l2_control *ctrl)
	221	{
c170ecf4	222	struct fmi_device *fmi = video_drvdata(file);
a2ef73af	223
c123b867 DL	224	switch (ctrl->id) {
	225	case V4L2_CID_AUDIO_MUTE:
	226	ctrl->value = fmi->curvol;
	227	return 0;
1da177e4	228	}
c123b867 DL	229	return -EINVAL;
	230	}
	231
	232	static int vidioc_s_ctrl(struct file file, void priv,
	233	struct v4l2_control *ctrl)
	234	{
c170ecf4	235	struct fmi_device *fmi = video_drvdata(file);
c123b867 DL	236
	237	switch (ctrl->id) {
	238	case V4L2_CID_AUDIO_MUTE:
	239	if (ctrl->value)
	240	fmi_mute(fmi->port);
	241	else
	242	fmi_unmute(fmi->port);
	243	fmi->curvol = ctrl->value;
	244	return 0;
	245	}
	246	return -EINVAL;
	247	}
	248
	249	static int vidioc_g_audio(struct file file, void priv,
	250	struct v4l2_audio *a)
	251	{
	252	if (a->index > 1)
	253	return -EINVAL;
	254
	255	strcpy(a->name, "Radio");
	256	a->capability = V4L2_AUDCAP_STEREO;
	257	return 0;
1da177e4 LT	258	}
1da177e4 LT	259
c123b867	260	static int vidioc_g_input(struct file filp, void priv, unsigned int *i)
1da177e4	261	{
c123b867 DL	262	*i = 0;
	263	return 0;
	264	}
	265
	266	static int vidioc_s_input(struct file filp, void priv, unsigned int i)
	267	{
	268	if (i != 0)
	269	return -EINVAL;
	270	return 0;
	271	}
	272
	273	static int vidioc_s_audio(struct file file, void priv,
	274	struct v4l2_audio *a)
	275	{
	276	if (a->index != 0)
	277	return -EINVAL;
	278	return 0;
1da177e4 LT	279	}
	280
	281	static struct fmi_device fmi_unit;
	282
bec43661	283	static int fmi_exclusive_open(struct file *file)
3ca685aa HV	284	{
	285	return test_and_set_bit(0, &fmi_unit.in_use) ? -EBUSY : 0;
	286	}
	287
bec43661	288	static int fmi_exclusive_release(struct file *file)
3ca685aa HV	289	{
	290	clear_bit(0, &fmi_unit.in_use);
	291	return 0;
	292	}
	293
bec43661	294	static const struct v4l2_file_operations fmi_fops = {
1da177e4	295	.owner = THIS_MODULE,
3ca685aa HV	296	.open = fmi_exclusive_open,
3ca685aa HV	297	.release = fmi_exclusive_release,
c123b867	298	.ioctl = video_ioctl2,
1da177e4 LT	299	};
1da177e4 LT	300
a399810c	301	static const struct v4l2_ioctl_ops fmi_ioctl_ops = {
c123b867 DL	302	.vidioc_querycap = vidioc_querycap,
	303	.vidioc_g_tuner = vidioc_g_tuner,
	304	.vidioc_s_tuner = vidioc_s_tuner,
	305	.vidioc_g_audio = vidioc_g_audio,
	306	.vidioc_s_audio = vidioc_s_audio,
	307	.vidioc_g_input = vidioc_g_input,
	308	.vidioc_s_input = vidioc_s_input,
	309	.vidioc_g_frequency = vidioc_g_frequency,
	310	.vidioc_s_frequency = vidioc_s_frequency,
	311	.vidioc_queryctrl = vidioc_queryctrl,
	312	.vidioc_g_ctrl = vidioc_g_ctrl,
	313	.vidioc_s_ctrl = vidioc_s_ctrl,
1da177e4 LT	314	};
1da177e4 LT	315
a399810c	316	static struct video_device fmi_radio = {
a399810c	317	.name = "SF16FMx radio",
a399810c HV	318	.fops = &fmi_fops,
a399810c HV	319	.ioctl_ops = &fmi_ioctl_ops,
aa5e90af	320	.release = video_device_release_empty,
a399810c HV	321	};
a399810c HV	322
1da177e4 LT	323	/* ladis: this is my card. does any other types exist? */
	324	static struct isapnp_device_id id_table[] __devinitdata = {
	325	{ ISAPNP_ANY_ID, ISAPNP_ANY_ID,
	326	ISAPNP_VENDOR('M','F','R'), ISAPNP_FUNCTION(0xad10), 0},
	327	{ ISAPNP_CARD_END, },
	328	};
	329
	330	MODULE_DEVICE_TABLE(isapnp, id_table);
	331
a999337b	332	static int __init isapnp_fmi_probe(void)
1da177e4 LT	333	{
	334	int i = 0;
	335
	336	while (id_table[i].card_vendor != 0 && dev == NULL) {
	337	dev = pnp_find_dev(NULL, id_table[i].vendor,
	338	id_table[i].function, NULL);
	339	i++;
	340	}
	341
	342	if (!dev)
	343	return -ENODEV;
	344	if (pnp_device_attach(dev) < 0)
	345	return -EAGAIN;
	346	if (pnp_activate_dev(dev) < 0) {
	347	printk ("radio-sf16fmi: PnP configure failed (out of resources?)\n");
	348	pnp_device_detach(dev);
	349	return -ENOMEM;
	350	}
	351	if (!pnp_port_valid(dev, 0)) {
	352	pnp_device_detach(dev);
	353	return -ENODEV;
	354	}
	355
	356	i = pnp_port_start(dev, 0);
	357	printk ("radio-sf16fmi: PnP reports card at %#x\n", i);
	358
	359	return i;
	360	}
	361
	362	static int __init fmi_init(void)
	363	{
	364	if (io < 0)
	365	io = isapnp_fmi_probe();
	366	if (io < 0) {
	367	printk(KERN_ERR "radio-sf16fmi: No PnP card found.\n");
	368	return io;
	369	}
	370	if (!request_region(io, 2, "radio-sf16fmi")) {
	371	printk(KERN_ERR "radio-sf16fmi: port 0x%x already in use\n", io);
e08a8c9d	372	pnp_device_detach(dev);
1da177e4 LT	373	return -EBUSY;
	374	}
	375
	376	fmi_unit.port = io;
	377	fmi_unit.curvol = 0;
	378	fmi_unit.curfreq = 0;
a2ef73af	379	fmi_unit.flags = V4L2_TUNER_CAP_LOW;
601e9444	380	video_set_drvdata(&fmi_radio, &fmi_unit);
4286c6f6	381
3593cab5	382	mutex_init(&lock);
4286c6f6	383
cba99ae8	384	if (video_register_device(&fmi_radio, VFL_TYPE_RADIO, radio_nr) < 0) {
1da177e4 LT	385	release_region(io, 2);
	386	return -EINVAL;
	387	}
4286c6f6	388
1da177e4 LT	389	printk(KERN_INFO "SF16FMx radio card driver at 0x%x\n", io);
	390	/* mute card - prevents noisy bootups */
	391	fmi_mute(io);
	392	return 0;
	393	}
	394
	395	MODULE_AUTHOR("Petr Vandrovec, vandrove@vc.cvut.cz and M. Kirkwood");
	396	MODULE_DESCRIPTION("A driver for the SF16MI radio.");
	397	MODULE_LICENSE("GPL");
	398
	399	module_param(io, int, 0);
	400	MODULE_PARM_DESC(io, "I/O address of the SF16MI card (0x284 or 0x384)");
	401	module_param(radio_nr, int, 0);
	402
	403	static void __exit fmi_cleanup_module(void)
	404	{
	405	video_unregister_device(&fmi_radio);
	406	release_region(io, 2);
	407	if (dev)
	408	pnp_device_detach(dev);
	409	}
	410
	411	module_init(fmi_init);
	412	module_exit(fmi_cleanup_module);