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Commit ec632c8a authored by Hans Verkuil's avatar Hans Verkuil Committed by Mauro Carvalho Chehab
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V4L/DVB (10893): radio-zoltrix: convert to v4l2_device. 



Signed-off-by: default avatarHans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: default avatarMauro Carvalho Chehab <mchehab@redhat.com>
parent f1bfe89b

drivers/media/radio/radio-zoltrix.c

+178 −201
Original line number Diff line number Diff line
@@ -33,33 +33,17 @@ 
#include <linux/init.h>		/* Initdata                       */

#include <linux/ioport.h>	/* request_region		  */

#include <linux/delay.h>	/* udelay, msleep                 */

#include <asm/io.h>		/* outb, outb_p                   */

#include <asm/uaccess.h>	/* copy to/from user              */

#include <linux/videodev2.h>	/* kernel radio structs           */

#include <media/v4l2-common.h>

#include <media/v4l2-ioctl.h>



#include <linux/mutex.h>

#include <linux/version.h>      /* for KERNEL_VERSION MACRO     */

#define RADIO_VERSION KERNEL_VERSION(0,0,2)

#include <linux/io.h>		/* outb, outb_p                   */

#include <linux/uaccess.h>	/* copy to/from user              */

#include <media/v4l2-device.h>

#include <media/v4l2-ioctl.h>



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,

	},{

		.id            = V4L2_CID_AUDIO_VOLUME,

		.name          = "Volume",

		.minimum       = 0,

		.maximum       = 65535,

		.step          = 4096,

		.default_value = 0xff,

		.type          = V4L2_CTRL_TYPE_INTEGER,

	}

};

MODULE_AUTHOR("C.van Schaik");

MODULE_DESCRIPTION("A driver for the Zoltrix Radio Plus.");

MODULE_LICENSE("GPL");



#ifndef CONFIG_RADIO_ZOLTRIX_PORT

#define CONFIG_RADIO_ZOLTRIX_PORT -1
@@ -68,9 +52,16 @@ static struct v4l2_queryctrl radio_qctrl[] = { 
static int io = CONFIG_RADIO_ZOLTRIX_PORT;

static int radio_nr = -1;



struct zol_device {

	unsigned long in_use;

	int port;

module_param(io, int, 0);

MODULE_PARM_DESC(io, "I/O address of the Zoltrix Radio Plus (0x20c or 0x30c)");

module_param(radio_nr, int, 0);



#define RADIO_VERSION KERNEL_VERSION(0, 0, 2)



struct zoltrix {

	struct v4l2_device v4l2_dev;

	struct video_device vdev;

	int io;

	int curvol;

	unsigned long curfreq;

	int muted;
@@ -78,53 +69,56 @@ struct zol_device { 
	struct mutex lock;

};



static int zol_setvol(struct zol_device *dev, int vol)

static struct zoltrix zoltrix_card;



static int zol_setvol(struct zoltrix *zol, int vol)

{

	dev->curvol = vol;

	if (dev->muted)

	zol->curvol = vol;

	if (zol->muted)

		return 0;



	mutex_lock(&dev->lock);

	mutex_lock(&zol->lock);

	if (vol == 0) {

		outb(0, io);

		outb(0, io);

		inb(io + 3);    /* Zoltrix needs to be read to confirm */

		mutex_unlock(&dev->lock);

		outb(0, zol->io);

		outb(0, zol->io);

		inb(zol->io + 3);    /* Zoltrix needs to be read to confirm */

		mutex_unlock(&zol->lock);

		return 0;

	}



	outb(dev->curvol-1, io);

	outb(zol->curvol-1, zol->io);

	msleep(10);

	inb(io + 2);

	mutex_unlock(&dev->lock);

	inb(zol->io + 2);

	mutex_unlock(&zol->lock);

	return 0;

}



static void zol_mute(struct zol_device *dev)

static void zol_mute(struct zoltrix *zol)

{

	dev->muted = 1;

	mutex_lock(&dev->lock);

	outb(0, io);

	outb(0, io);

	inb(io + 3);            /* Zoltrix needs to be read to confirm */

	mutex_unlock(&dev->lock);

	zol->muted = 1;

	mutex_lock(&zol->lock);

	outb(0, zol->io);

	outb(0, zol->io);

	inb(zol->io + 3);            /* Zoltrix needs to be read to confirm */

	mutex_unlock(&zol->lock);

}



static void zol_unmute(struct zol_device *dev)

static void zol_unmute(struct zoltrix *zol)

{

	dev->muted = 0;

	zol_setvol(dev, dev->curvol);

	zol->muted = 0;

	zol_setvol(zol, zol->curvol);

}



static int zol_setfreq(struct zol_device *dev, unsigned long freq)

static int zol_setfreq(struct zoltrix *zol, unsigned long freq)

{

	/* tunes the radio to the desired frequency */

	struct v4l2_device *v4l2_dev = &zol->v4l2_dev;

	unsigned long long bitmask, f, m;

	unsigned int stereo = dev->stereo;

	unsigned int stereo = zol->stereo;

	int i;



	if (freq == 0) {

		printk(KERN_WARNING "zoltrix: received zero freq. Failed to set.\n");

		v4l2_warn(v4l2_dev, "cannot set a frequency of 0.\n");

		return -EINVAL;

	}
@@ -134,105 +128,99 @@ static int zol_setfreq(struct zol_device *dev, unsigned long freq) 
	bitmask = 0xc480402c10080000ull;

	i = 45;



	mutex_lock(&dev->lock);

	mutex_lock(&zol->lock);



	outb(0, io);

	outb(0, io);

	inb(io + 3);            /* Zoltrix needs to be read to confirm */

	zol->curfreq = freq;



	outb(0x40, io);

	outb(0xc0, io);

	outb(0, zol->io);

	outb(0, zol->io);

	inb(zol->io + 3);            /* Zoltrix needs to be read to confirm */



	outb(0x40, zol->io);

	outb(0xc0, zol->io);



	bitmask = (bitmask ^ ((f & 0xff) << 47) ^ ((f & 0xff00) << 30) ^ (stereo << 31));

	while (i--) {

		if ((bitmask & 0x8000000000000000ull) != 0) {

			outb(0x80, io);

			outb(0x80, zol->io);

			udelay(50);

			outb(0x00, io);

			outb(0x00, zol->io);

			udelay(50);

			outb(0x80, io);

			outb(0x80, zol->io);

			udelay(50);

		} else {

			outb(0xc0, io);

			outb(0xc0, zol->io);

			udelay(50);

			outb(0x40, io);

			outb(0x40, zol->io);

			udelay(50);

			outb(0xc0, io);

			outb(0xc0, zol->io);

			udelay(50);

		}

		bitmask *= 2;

	}

	/* termination sequence */

	outb(0x80, io);

	outb(0xc0, io);

	outb(0x40, io);

	outb(0x80, zol->io);

	outb(0xc0, zol->io);

	outb(0x40, zol->io);

	udelay(1000);

	inb(io+2);

	inb(zol->io + 2);



	udelay(1000);



	if (dev->muted)

	{

		outb(0, io);

		outb(0, io);

		inb(io + 3);

	if (zol->muted) {

		outb(0, zol->io);

		outb(0, zol->io);

		inb(zol->io + 3);

		udelay(1000);

	}



	mutex_unlock(&dev->lock);

	mutex_unlock(&zol->lock);



	if(!dev->muted)

	{

		zol_setvol(dev, dev->curvol);

	}

	if (!zol->muted)

		zol_setvol(zol, zol->curvol);

	return 0;

}



/* Get signal strength */



static int zol_getsigstr(struct zol_device *dev)

static int zol_getsigstr(struct zoltrix *zol)

{

	int a, b;



	mutex_lock(&dev->lock);

	outb(0x00, io);         /* This stuff I found to do nothing */

	outb(dev->curvol, io);

	mutex_lock(&zol->lock);

	outb(0x00, zol->io);         /* This stuff I found to do nothing */

	outb(zol->curvol, zol->io);

	msleep(20);



	a = inb(io);

	a = inb(zol->io);

	msleep(10);

	b = inb(io);

	b = inb(zol->io);



	mutex_unlock(&dev->lock);

	mutex_unlock(&zol->lock);



	if (a != b)

		return (0);

		return 0;



	if ((a == 0xcf) || (a == 0xdf)  /* I found this out by playing */

		|| (a == 0xef))       /* with a binary scanner on the card io */

		return (1);

	return (0);

	/* I found this out by playing with a binary scanner on the card io */

	return a == 0xcf || a == 0xdf || a == 0xef;

}



static int zol_is_stereo (struct zol_device *dev)

static int zol_is_stereo(struct zoltrix *zol)

{

	int x1, x2;



	mutex_lock(&dev->lock);

	mutex_lock(&zol->lock);



	outb(0x00, io);

	outb(dev->curvol, io);

	outb(0x00, zol->io);

	outb(zol->curvol, zol->io);

	msleep(20);



	x1 = inb(io);

	x1 = inb(zol->io);

	msleep(10);

	x2 = inb(io);

	x2 = inb(zol->io);



	mutex_unlock(&dev->lock);

	mutex_unlock(&zol->lock);



	if ((x1 == x2) && (x1 == 0xcf))

		return 1;

	return 0;

	return x1 == x2 && x1 == 0xcf;

}



static int vidioc_querycap(struct file *file, void  *priv,
@@ -240,24 +228,24 @@ static int vidioc_querycap(struct file *file, void *priv, 
{

	strlcpy(v->driver, "radio-zoltrix", sizeof(v->driver));

	strlcpy(v->card, "Zoltrix Radio", sizeof(v->card));

	sprintf(v->bus_info, "ISA");

	strlcpy(v->bus_info, "ISA", sizeof(v->bus_info));

	v->version = RADIO_VERSION;

	v->capabilities = V4L2_CAP_TUNER;

	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 zol_device *zol = video_drvdata(file);

	struct zoltrix *zol = video_drvdata(file);



	if (v->index > 0)

		return -EINVAL;



	strcpy(v->name, "FM");

	strlcpy(v->name, "FM", sizeof(v->name));

	v->type = V4L2_TUNER_RADIO;

	v->rangelow = (88*16000);

	v->rangehigh = (108*16000);

	v->rangelow = 88 * 16000;

	v->rangehigh = 108 * 16000;

	v->rxsubchans = V4L2_TUNER_SUB_MONO | V4L2_TUNER_SUB_STEREO;

	v->capability = V4L2_TUNER_CAP_LOW;

	if (zol_is_stereo(zol))
@@ -271,28 +259,23 @@ static int vidioc_g_tuner(struct file *file, void *priv, 
static int vidioc_s_tuner(struct file *file, void *priv,

					struct v4l2_tuner *v)

{

	if (v->index > 0)

		return -EINVAL;

	return 0;

	return v->index ? -EINVAL : 0;

}



static int vidioc_s_frequency(struct file *file, void *priv,

					struct v4l2_frequency *f)

{

	struct zol_device *zol = video_drvdata(file);

	struct zoltrix *zol = video_drvdata(file);



	zol->curfreq = f->frequency;

	if (zol_setfreq(zol, zol->curfreq) != 0) {

		printk(KERN_WARNING "zoltrix: Set frequency failed.\n");

	if (zol_setfreq(zol, f->frequency) != 0)

		return -EINVAL;

	}

	return 0;

}



static int vidioc_g_frequency(struct file *file, void *priv,

					struct v4l2_frequency *f)

{

	struct zol_device *zol = video_drvdata(file);

	struct zoltrix *zol = video_drvdata(file);



	f->type = V4L2_TUNER_RADIO;

	f->frequency = zol->curfreq;
@@ -302,14 +285,11 @@ static int vidioc_g_frequency(struct file *file, void *priv, 
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;

		}

	switch (qc->id) {

	case V4L2_CID_AUDIO_MUTE:

		return v4l2_ctrl_query_fill(qc, 0, 1, 1, 1);

	case V4L2_CID_AUDIO_VOLUME:

		return v4l2_ctrl_query_fill(qc, 0, 65535, 4096, 65535);

	}

	return -EINVAL;

}
@@ -317,7 +297,7 @@ static int vidioc_queryctrl(struct file *file, void *priv, 
static int vidioc_g_ctrl(struct file *file, void *priv,

				struct v4l2_control *ctrl)

{

	struct zol_device *zol = video_drvdata(file);

	struct zoltrix *zol = video_drvdata(file);



	switch (ctrl->id) {

	case V4L2_CID_AUDIO_MUTE:
@@ -333,7 +313,7 @@ static int vidioc_g_ctrl(struct file *file, void *priv, 
static int vidioc_s_ctrl(struct file *file, void *priv,

				struct v4l2_control *ctrl)

{

	struct zol_device *zol = video_drvdata(file);

	struct zoltrix *zol = video_drvdata(file);



	switch (ctrl->id) {

	case V4L2_CID_AUDIO_MUTE:
@@ -349,10 +329,8 @@ static int vidioc_s_ctrl(struct file *file, void *priv, 
		return 0;

	}

	zol->stereo = 1;

	if (zol_setfreq(zol, zol->curfreq) != 0) {

		printk(KERN_WARNING "zoltrix: Set frequency failed.\n");

	if (zol_setfreq(zol, zol->curfreq) != 0)

		return -EINVAL;

	}

#if 0

/* FIXME: Implement stereo/mono switch on V4L2 */

	if (v->mode & VIDEO_SOUND_STEREO) {
@@ -367,17 +345,6 @@ static int vidioc_s_ctrl(struct file *file, void *priv, 
	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;
@@ -386,37 +353,39 @@ static int vidioc_g_input(struct file *filp, void *priv, unsigned int *i) 


static int vidioc_s_input(struct file *filp, void *priv, unsigned int i)

{

	if (i != 0)

		return -EINVAL;

	return 0;

	return i ? -EINVAL : 0;

}



static int vidioc_s_audio(struct file *file, void *priv,

static int vidioc_g_audio(struct file *file, void *priv,

					struct v4l2_audio *a)

{

	if (a->index != 0)

		return -EINVAL;

	a->index = 0;

	strlcpy(a->name, "Radio", sizeof(a->name));

	a->capability = V4L2_AUDCAP_STEREO;

	return 0;

}



static struct zol_device zoltrix_unit;

static int vidioc_s_audio(struct file *file, void *priv,

					struct v4l2_audio *a)

{

	return a->index ? -EINVAL : 0;

}



static int zoltrix_exclusive_open(struct file *file)

static int zoltrix_open(struct file *file)

{

	return test_and_set_bit(0, &zoltrix_unit.in_use) ? -EBUSY : 0;

	return 0;

}



static int zoltrix_exclusive_release(struct file *file)

static int zoltrix_release(struct file *file)

{

	clear_bit(0, &zoltrix_unit.in_use);

	return 0;

}



static const struct v4l2_file_operations zoltrix_fops =

{

	.owner		= THIS_MODULE,

	.open           = zoltrix_exclusive_open,

	.release        = zoltrix_exclusive_release,

	.open           = zoltrix_open,

	.release        = zoltrix_release,

	.ioctl		= video_ioctl2,

};
@@ -435,67 +404,75 @@ static const struct v4l2_ioctl_ops zoltrix_ioctl_ops = { 
	.vidioc_s_ctrl      = vidioc_s_ctrl,

};



static struct video_device zoltrix_radio = {

	.name		= "Zoltrix Radio Plus",

	.fops           = &zoltrix_fops,

	.ioctl_ops 	= &zoltrix_ioctl_ops,

	.release	= video_device_release_empty,

};



static int __init zoltrix_init(void)

{

	if (io == -1) {

		printk(KERN_ERR "You must set an I/O address with io=0x???\n");

	struct zoltrix *zol = &zoltrix_card;

	struct v4l2_device *v4l2_dev = &zol->v4l2_dev;

	int res;



	strlcpy(v4l2_dev->name, "zoltrix", sizeof(v4l2_dev->name));

	zol->io = io;

	if (zol->io == -1) {

		v4l2_err(v4l2_dev, "You must set an I/O address with io=0x???\n");

		return -EINVAL;

	}

	if ((io != 0x20c) && (io != 0x30c)) {

		printk(KERN_ERR "zoltrix: invalid port, try 0x20c or 0x30c\n");

	if (zol->io != 0x20c && zol->io != 0x30c) {

		v4l2_err(v4l2_dev, "invalid port, try 0x20c or 0x30c\n");

		return -ENXIO;

	}



	video_set_drvdata(&zoltrix_radio, &zoltrix_unit);

	if (!request_region(io, 2, "zoltrix")) {

		printk(KERN_ERR "zoltrix: port 0x%x already in use\n", io);

	if (!request_region(zol->io, 2, "zoltrix")) {

		v4l2_err(v4l2_dev, "port 0x%x already in use\n", zol->io);

		return -EBUSY;

	}



	if (video_register_device(&zoltrix_radio, VFL_TYPE_RADIO, radio_nr) < 0) {

		release_region(io, 2);

	res = v4l2_device_register(NULL, v4l2_dev);

	if (res < 0) {

		release_region(zol->io, 2);

		v4l2_err(v4l2_dev, "Could not register v4l2_device\n");

		return res;

	}



	strlcpy(zol->vdev.name, v4l2_dev->name, sizeof(zol->vdev.name));

	zol->vdev.v4l2_dev = v4l2_dev;

	zol->vdev.fops = &zoltrix_fops;

	zol->vdev.ioctl_ops = &zoltrix_ioctl_ops;

	zol->vdev.release = video_device_release_empty;

	video_set_drvdata(&zol->vdev, zol);



	if (video_register_device(&zol->vdev, VFL_TYPE_RADIO, radio_nr) < 0) {

		v4l2_device_unregister(v4l2_dev);

		release_region(zol->io, 2);

		return -EINVAL;

	}

	printk(KERN_INFO "Zoltrix Radio Plus card driver.\n");

	v4l2_info(v4l2_dev, "Zoltrix Radio Plus card driver.\n");



	mutex_init(&zoltrix_unit.lock);

	mutex_init(&zol->lock);



	/* mute card - prevents noisy bootups */



	/* this ensures that the volume is all the way down  */



	outb(0, io);

	outb(0, io);

	outb(0, zol->io);

	outb(0, zol->io);

	msleep(20);

	inb(io + 3);

	inb(zol->io + 3);



	zoltrix_unit.curvol = 0;

	zoltrix_unit.stereo = 1;

	zol->curvol = 0;

	zol->stereo = 1;



	return 0;

}



MODULE_AUTHOR("C.van Schaik");

MODULE_DESCRIPTION("A driver for the Zoltrix Radio Plus.");

MODULE_LICENSE("GPL");



module_param(io, int, 0);

MODULE_PARM_DESC(io, "I/O address of the Zoltrix Radio Plus (0x20c or 0x30c)");

module_param(radio_nr, int, 0);



static void __exit zoltrix_cleanup_module(void)

static void __exit zoltrix_exit(void)

{

	video_unregister_device(&zoltrix_radio);

	release_region(io, 2);

	struct zoltrix *zol = &zoltrix_card;



	video_unregister_device(&zol->vdev);

	v4l2_device_unregister(&zol->v4l2_dev);

	release_region(zol->io, 2);

}



module_init(zoltrix_init);

module_exit(zoltrix_cleanup_module);

module_exit(zoltrix_exit);