[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 <media/v4l2-ctrls.h>
#include <media/v4l2-event.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 v4l2_ctrl_handler hdl;
	struct video_device vdev;
	int io;
	bool mute;
	u32 curfreq; /* freq in kHz */
	struct mutex lock;
};

static struct fmi fmi_card;
static struct pnp_dev *dev;
static bool pnp_attached;

#define RSF16_MINFREQ (87U * 16000)
#define RSF16_MAXFREQ (108U * 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 void fmi_set_freq(struct fmi *fmi)
{
	fmi->curfreq = clamp(fmi->curfreq, RSF16_MINFREQ, RSF16_MAXFREQ);
	/* rounding in steps of 800 to match the freq
	   that will be used */
	lm7000_set_freq((fmi->curfreq / 800) * 800, fmi, fmi_set_pins);
}

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:radio-sf16fmi", sizeof(v->bus_info));
	v->device_caps = V4L2_CAP_TUNER | V4L2_CAP_RADIO;
	v->capabilities = v->device_caps | V4L2_CAP_DEVICE_CAPS;
	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,
					const 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;

	fmi->curfreq = f->frequency;
	fmi_set_freq(fmi);

	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 fmi_s_ctrl(struct v4l2_ctrl *ctrl)
{
	struct fmi *fmi = container_of(ctrl->handler, struct fmi, hdl);

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

static const struct v4l2_ctrl_ops fmi_ctrl_ops = {
	.s_ctrl = fmi_s_ctrl,
};

static const struct v4l2_file_operations fmi_fops = {
	.owner		= THIS_MODULE,
	.open		= v4l2_fh_open,
	.release	= v4l2_fh_release,
	.poll		= v4l2_ctrl_poll,
	.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_frequency = vidioc_g_frequency,
	.vidioc_s_frequency = vidioc_s_frequency,
	.vidioc_log_status  = v4l2_ctrl_log_status,
	.vidioc_subscribe_event = v4l2_ctrl_subscribe_event,
	.vidioc_unsubscribe_event = v4l2_event_unsubscribe,
};

/* 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;
	struct v4l2_ctrl_handler *hdl = &fmi->hdl;
	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 = true;
			}
			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;
	}

	v4l2_ctrl_handler_init(hdl, 1);
	v4l2_ctrl_new_std(hdl, &fmi_ctrl_ops,
			V4L2_CID_AUDIO_MUTE, 0, 1, 1, 1);
	v4l2_dev->ctrl_handler = hdl;
	if (hdl->error) {
		res = hdl->error;
		v4l2_err(v4l2_dev, "Could not register controls\n");
		v4l2_ctrl_handler_free(hdl);
		v4l2_device_unregister(v4l2_dev);
		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 and set default frequency */
	fmi->mute = true;
	fmi->curfreq = RSF16_MINFREQ;
	fmi_set_freq(fmi);

	if (video_register_device(&fmi->vdev, VFL_TYPE_RADIO, radio_nr) < 0) {
		v4l2_ctrl_handler_free(hdl);
		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;

	v4l2_ctrl_handler_free(&fmi->hdl);
	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>
268d06bb	30	#include <media/v4l2-ctrls.h>
0dc5d82d	31	#include <media/v4l2-event.h>
6b39023a	32	#include "lm7000.h"
1da177e4	33
c41269fd	34	MODULE_AUTHOR("Petr Vandrovec, vandrove@vc.cvut.cz and M. Kirkwood");
abed623c	35	MODULE_DESCRIPTION("A driver for the SF16-FMI, SF16-FMP and SF16-FMD radio.");
c41269fd	36	MODULE_LICENSE("GPL");
29834c1a	37	MODULE_VERSION("0.0.3");
a2ef73af	38
c41269fd HV	39	static int io = -1;
	40	static int radio_nr = -1;
	41
	42	module_param(io, int, 0);
abed623c	43	MODULE_PARM_DESC(io, "I/O address of the SF16-FMI/SF16-FMP/SF16-FMD card (0x284 or 0x384)");
c41269fd HV	44	module_param(radio_nr, int, 0);
c41269fd HV	45
c41269fd	46	struct fmi
1da177e4	47	{
c41269fd	48	struct v4l2_device v4l2_dev;
268d06bb	49	struct v4l2_ctrl_handler hdl;
c41269fd HV	50	struct video_device vdev;
c41269fd HV	51	int io;
4b830374	52	bool mute;
d9ec089e	53	u32 curfreq; /* freq in kHz */
c41269fd	54	struct mutex lock;
1da177e4 LT	55	};
1da177e4 LT	56
c41269fd HV	57	static struct fmi fmi_card;
c41269fd HV	58	static struct pnp_dev *dev;
24c8f11f	59	static bool pnp_attached;
1da177e4	60
96bb42b8 HV	61	#define RSF16_MINFREQ (87U * 16000)
96bb42b8 HV	62	#define RSF16_MAXFREQ (108U * 16000)
1da177e4	63
6b39023a OZ	64	#define FMI_BIT_TUN_CE (1 << 0)
	65	#define FMI_BIT_TUN_CLK (1 << 1)
	66	#define FMI_BIT_TUN_DATA (1 << 2)
	67	#define FMI_BIT_VOL_SW (1 << 3)
	68	#define FMI_BIT_TUN_STRQ (1 << 4)
	69
a5133b17	70	static void fmi_set_pins(void *handle, u8 pins)
1da177e4	71	{
6b39023a OZ	72	struct fmi *fmi = handle;
	73	u8 bits = FMI_BIT_TUN_STRQ;
	74
	75	if (!fmi->mute)
	76	bits \|= FMI_BIT_VOL_SW;
	77
	78	if (pins & LM7000_DATA)
	79	bits \|= FMI_BIT_TUN_DATA;
	80	if (pins & LM7000_CLK)
	81	bits \|= FMI_BIT_TUN_CLK;
	82	if (pins & LM7000_CE)
	83	bits \|= FMI_BIT_TUN_CE;
	84
	85	mutex_lock(&fmi->lock);
	86	outb_p(bits, fmi->io);
	87	mutex_unlock(&fmi->lock);
1da177e4 LT	88	}
1da177e4 LT	89
c41269fd	90	static inline void fmi_mute(struct fmi *fmi)
1da177e4	91	{
c41269fd HV	92	mutex_lock(&fmi->lock);
	93	outb(0x00, fmi->io);
	94	mutex_unlock(&fmi->lock);
1da177e4 LT	95	}
1da177e4 LT	96
c41269fd	97	static inline void fmi_unmute(struct fmi *fmi)
1da177e4	98	{
c41269fd HV	99	mutex_lock(&fmi->lock);
	100	outb(0x08, fmi->io);
	101	mutex_unlock(&fmi->lock);
1da177e4 LT	102	}
1da177e4 LT	103
c41269fd	104	static inline int fmi_getsigstr(struct fmi *fmi)
1da177e4 LT	105	{
	106	int val;
	107	int res;
4286c6f6	108
c41269fd	109	mutex_lock(&fmi->lock);
4b830374	110	val = fmi->mute ? 0x00 : 0x08; /* mute/unmute */
c41269fd HV	111	outb(val, fmi->io);
c41269fd HV	112	outb(val \| 0x10, fmi->io);
1da177e4	113	msleep(143); /* was schedule_timeout(HZ/7) */
c41269fd HV	114	res = (int)inb(fmi->io + 1);
c41269fd HV	115	outb(val, fmi->io);
4286c6f6	116
c41269fd	117	mutex_unlock(&fmi->lock);
1da177e4 LT	118	return (res & 2) ? 0 : 0xFFFF;
	119	}
	120
d9ec089e OZ	121	static void fmi_set_freq(struct fmi *fmi)
	122	{
	123	fmi->curfreq = clamp(fmi->curfreq, RSF16_MINFREQ, RSF16_MAXFREQ);
	124	/* rounding in steps of 800 to match the freq
	125	that will be used */
	126	lm7000_set_freq((fmi->curfreq / 800) * 800, fmi, fmi_set_pins);
	127	}
	128
c123b867 DL	129	static int vidioc_querycap(struct file file, void priv,
c123b867 DL	130	struct v4l2_capability *v)
1da177e4	131	{
c123b867	132	strlcpy(v->driver, "radio-sf16fmi", sizeof(v->driver));
abed623c	133	strlcpy(v->card, "SF16-FMI/FMP/FMD radio", sizeof(v->card));
9291682e	134	strlcpy(v->bus_info, "ISA:radio-sf16fmi", sizeof(v->bus_info));
f90842d6 HV	135	v->device_caps = V4L2_CAP_TUNER \| V4L2_CAP_RADIO;
f90842d6 HV	136	v->capabilities = v->device_caps \| V4L2_CAP_DEVICE_CAPS;
c123b867 DL	137	return 0;
	138	}
	139
	140	static int vidioc_g_tuner(struct file file, void priv,
	141	struct v4l2_tuner *v)
	142	{
c41269fd	143	struct fmi *fmi = video_drvdata(file);
c123b867 DL	144
	145	if (v->index > 0)
	146	return -EINVAL;
	147
c41269fd	148	strlcpy(v->name, "FM", sizeof(v->name));
c123b867	149	v->type = V4L2_TUNER_RADIO;
1d80db56 HV	150	v->rangelow = RSF16_MINFREQ;
1d80db56 HV	151	v->rangehigh = RSF16_MAXFREQ;
dc47b778	152	v->rxsubchans = V4L2_TUNER_SUB_MONO \| V4L2_TUNER_SUB_STEREO;
38092a44	153	v->capability = V4L2_TUNER_CAP_STEREO \| V4L2_TUNER_CAP_LOW;
c123b867 DL	154	v->audmode = V4L2_TUNER_MODE_STEREO;
	155	v->signal = fmi_getsigstr(fmi);
	156	return 0;
	157	}
4286c6f6	158
c123b867	159	static int vidioc_s_tuner(struct file file, void priv,
2f73c7c5	160	const struct v4l2_tuner *v)
c123b867	161	{
c41269fd	162	return v->index ? -EINVAL : 0;
c123b867	163	}
a2ef73af	164
c123b867	165	static int vidioc_s_frequency(struct file file, void priv,
b530a447	166	const struct v4l2_frequency *f)
c123b867	167	{
c41269fd	168	struct fmi *fmi = video_drvdata(file);
c123b867	169
a3a9e287 HV	170	if (f->tuner != 0 \|\| f->type != V4L2_TUNER_RADIO)
a3a9e287 HV	171	return -EINVAL;
d9ec089e OZ	172
	173	fmi->curfreq = f->frequency;
	174	fmi_set_freq(fmi);
	175
c123b867 DL	176	return 0;
c123b867 DL	177	}
a2ef73af	178
c123b867 DL	179	static int vidioc_g_frequency(struct file file, void priv,
	180	struct v4l2_frequency *f)
	181	{
c41269fd	182	struct fmi *fmi = video_drvdata(file);
a2ef73af	183
a3a9e287 HV	184	if (f->tuner != 0)
a3a9e287 HV	185	return -EINVAL;
c123b867 DL	186	f->type = V4L2_TUNER_RADIO;
c123b867 DL	187	f->frequency = fmi->curfreq;
c123b867 DL	188	return 0;
c123b867 DL	189	}
a2ef73af	190
268d06bb	191	static int fmi_s_ctrl(struct v4l2_ctrl *ctrl)
c123b867	192	{
268d06bb	193	struct fmi *fmi = container_of(ctrl->handler, struct fmi, hdl);
a2ef73af	194
c123b867 DL	195	switch (ctrl->id) {
c123b867 DL	196	case V4L2_CID_AUDIO_MUTE:
268d06bb	197	if (ctrl->val)
c41269fd	198	fmi_mute(fmi);
c123b867	199	else
c41269fd	200	fmi_unmute(fmi);
268d06bb	201	fmi->mute = ctrl->val;
c123b867 DL	202	return 0;
	203	}
	204	return -EINVAL;
	205	}
	206
268d06bb HV	207	static const struct v4l2_ctrl_ops fmi_ctrl_ops = {
	208	.s_ctrl = fmi_s_ctrl,
	209	};
	210
bec43661	211	static const struct v4l2_file_operations fmi_fops = {
1da177e4	212	.owner = THIS_MODULE,
0dc5d82d HV	213	.open = v4l2_fh_open,
	214	.release = v4l2_fh_release,
	215	.poll = v4l2_ctrl_poll,
32958fdd	216	.unlocked_ioctl = video_ioctl2,
1da177e4 LT	217	};
1da177e4 LT	218
a399810c	219	static const struct v4l2_ioctl_ops fmi_ioctl_ops = {
c123b867 DL	220	.vidioc_querycap = vidioc_querycap,
	221	.vidioc_g_tuner = vidioc_g_tuner,
	222	.vidioc_s_tuner = vidioc_s_tuner,
c123b867 DL	223	.vidioc_g_frequency = vidioc_g_frequency,
c123b867 DL	224	.vidioc_s_frequency = vidioc_s_frequency,
0dc5d82d HV	225	.vidioc_log_status = v4l2_ctrl_log_status,
	226	.vidioc_subscribe_event = v4l2_ctrl_subscribe_event,
	227	.vidioc_unsubscribe_event = v4l2_event_unsubscribe,
1da177e4 LT	228	};
	229
	230	/* ladis: this is my card. does any other types exist? */
4c62e976	231	static struct isapnp_device_id id_table[] = {
abed623c	232	/* SF16-FMI */
1da177e4 LT	233	{ ISAPNP_ANY_ID, ISAPNP_ANY_ID,
1da177e4 LT	234	ISAPNP_VENDOR('M','F','R'), ISAPNP_FUNCTION(0xad10), 0},
abed623c OZ	235	/* SF16-FMD */
	236	{ ISAPNP_ANY_ID, ISAPNP_ANY_ID,
	237	ISAPNP_VENDOR('M','F','R'), ISAPNP_FUNCTION(0xad12), 0},
1da177e4 LT	238	{ ISAPNP_CARD_END, },
	239	};
	240
	241	MODULE_DEVICE_TABLE(isapnp, id_table);
	242
a999337b	243	static int __init isapnp_fmi_probe(void)
1da177e4 LT	244	{
	245	int i = 0;
	246
	247	while (id_table[i].card_vendor != 0 && dev == NULL) {
	248	dev = pnp_find_dev(NULL, id_table[i].vendor,
	249	id_table[i].function, NULL);
	250	i++;
	251	}
	252
	253	if (!dev)
	254	return -ENODEV;
	255	if (pnp_device_attach(dev) < 0)
	256	return -EAGAIN;
	257	if (pnp_activate_dev(dev) < 0) {
c41269fd	258	printk(KERN_ERR "radio-sf16fmi: PnP configure failed (out of resources?)\n");
1da177e4 LT	259	pnp_device_detach(dev);
	260	return -ENOMEM;
	261	}
	262	if (!pnp_port_valid(dev, 0)) {
	263	pnp_device_detach(dev);
	264	return -ENODEV;
	265	}
	266
	267	i = pnp_port_start(dev, 0);
c41269fd	268	printk(KERN_INFO "radio-sf16fmi: PnP reports card at %#x\n", i);
1da177e4 LT	269
	270	return i;
	271	}
	272
	273	static int __init fmi_init(void)
	274	{
c41269fd HV	275	struct fmi *fmi = &fmi_card;
c41269fd HV	276	struct v4l2_device *v4l2_dev = &fmi->v4l2_dev;
268d06bb	277	struct v4l2_ctrl_handler *hdl = &fmi->hdl;
67cabf50 OZ	278	int res, i;
	279	int probe_ports[] = { 0, 0x284, 0x384 };
	280
	281	if (io < 0) {
	282	for (i = 0; i < ARRAY_SIZE(probe_ports); i++) {
	283	io = probe_ports[i];
	284	if (io == 0) {
	285	io = isapnp_fmi_probe();
	286	if (io < 0)
	287	continue;
8b4b6818	288	pnp_attached = true;
67cabf50 OZ	289	}
	290	if (!request_region(io, 2, "radio-sf16fmi")) {
	291	if (pnp_attached)
	292	pnp_device_detach(dev);
	293	io = -1;
	294	continue;
	295	}
	296	if (pnp_attached \|\|
	297	((inb(io) & 0xf9) == 0xf9 && (inb(io) & 0x4) == 0))
	298	break;
	299	release_region(io, 2);
	300	io = -1;
	301	}
	302	} else {
	303	if (!request_region(io, 2, "radio-sf16fmi")) {
	304	printk(KERN_ERR "radio-sf16fmi: port %#x already in use\n", io);
	305	return -EBUSY;
	306	}
	307	if (inb(io) == 0xff) {
	308	printk(KERN_ERR "radio-sf16fmi: card not present at %#x\n", io);
	309	release_region(io, 2);
	310	return -ENODEV;
	311	}
	312	}
	313	if (io < 0) {
	314	printk(KERN_ERR "radio-sf16fmi: no cards found\n");
	315	return -ENODEV;
	316	}
c41269fd	317
c41269fd HV	318	strlcpy(v4l2_dev->name, "sf16fmi", sizeof(v4l2_dev->name));
c41269fd HV	319	fmi->io = io;
1da177e4	320
c41269fd HV	321	res = v4l2_device_register(NULL, v4l2_dev);
	322	if (res < 0) {
	323	release_region(fmi->io, 2);
67cabf50 OZ	324	if (pnp_attached)
67cabf50 OZ	325	pnp_device_detach(dev);
c41269fd HV	326	v4l2_err(v4l2_dev, "Could not register v4l2_device\n");
	327	return res;
	328	}
	329
268d06bb HV	330	v4l2_ctrl_handler_init(hdl, 1);
	331	v4l2_ctrl_new_std(hdl, &fmi_ctrl_ops,
	332	V4L2_CID_AUDIO_MUTE, 0, 1, 1, 1);
	333	v4l2_dev->ctrl_handler = hdl;
	334	if (hdl->error) {
	335	res = hdl->error;
	336	v4l2_err(v4l2_dev, "Could not register controls\n");
	337	v4l2_ctrl_handler_free(hdl);
	338	v4l2_device_unregister(v4l2_dev);
	339	return res;
	340	}
	341
c41269fd HV	342	strlcpy(fmi->vdev.name, v4l2_dev->name, sizeof(fmi->vdev.name));
	343	fmi->vdev.v4l2_dev = v4l2_dev;
	344	fmi->vdev.fops = &fmi_fops;
	345	fmi->vdev.ioctl_ops = &fmi_ioctl_ops;
	346	fmi->vdev.release = video_device_release_empty;
	347	video_set_drvdata(&fmi->vdev, fmi);
4286c6f6	348
c41269fd	349	mutex_init(&fmi->lock);
4286c6f6	350
d9ec089e	351	/* mute card and set default frequency */
8b4b6818	352	fmi->mute = true;
d9ec089e OZ	353	fmi->curfreq = RSF16_MINFREQ;
d9ec089e OZ	354	fmi_set_freq(fmi);
32958fdd	355
c41269fd	356	if (video_register_device(&fmi->vdev, VFL_TYPE_RADIO, radio_nr) < 0) {
268d06bb	357	v4l2_ctrl_handler_free(hdl);
c41269fd HV	358	v4l2_device_unregister(v4l2_dev);
c41269fd HV	359	release_region(fmi->io, 2);
67cabf50 OZ	360	if (pnp_attached)
67cabf50 OZ	361	pnp_device_detach(dev);
1da177e4 LT	362	return -EINVAL;
1da177e4 LT	363	}
4286c6f6	364
c41269fd	365	v4l2_info(v4l2_dev, "card driver at 0x%x\n", fmi->io);
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;
c41269fd HV	372
268d06bb	373	v4l2_ctrl_handler_free(&fmi->hdl);
c41269fd HV	374	video_unregister_device(&fmi->vdev);
	375	v4l2_device_unregister(&fmi->v4l2_dev);
	376	release_region(fmi->io, 2);
67cabf50	377	if (dev && pnp_attached)
1da177e4 LT	378	pnp_device_detach(dev);
	379	}
	380
	381	module_init(fmi_init);
c41269fd	382	module_exit(fmi_exit);