Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit 1dc8aafc authored by Hans Verkuil's avatar Hans Verkuil Committed by Mauro Carvalho Chehab
Browse files

V4L/DVB (10891): radio-trust: convert to v4l2_device. 



Signed-off-by: default avatarHans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: default avatarMauro Carvalho Chehab <mchehab@redhat.com>
parent 5ac3d5bf

drivers/media/radio/radio-trust.c

+179 −165
Original line number Diff line number Diff line
@@ -19,49 +19,16 @@ 
#include <linux/module.h>

#include <linux/init.h>

#include <linux/ioport.h>

#include <asm/io.h>

#include <asm/uaccess.h>

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

#include <linux/videodev2.h>

#include <media/v4l2-common.h>

#include <linux/io.h>

#include <linux/uaccess.h>

#include <media/v4l2-device.h>

#include <media/v4l2-ioctl.h>



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

#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,

	},{

		.id            = V4L2_CID_AUDIO_VOLUME,

		.name          = "Volume",

		.minimum       = 0,

		.maximum       = 65535,

		.step          = 2048,

		.default_value = 65535,

		.type          = V4L2_CTRL_TYPE_INTEGER,

	},{

		.id            = V4L2_CID_AUDIO_BASS,

		.name          = "Bass",

		.minimum       = 0,

		.maximum       = 65535,

		.step          = 4370,

		.default_value = 32768,

		.type          = V4L2_CTRL_TYPE_INTEGER,

	},{

		.id            = V4L2_CID_AUDIO_TREBLE,

		.name          = "Treble",

		.minimum       = 0,

		.maximum       = 65535,

		.step          = 4370,

		.default_value = 32768,

		.type          = V4L2_CTRL_TYPE_INTEGER,

	},

};

MODULE_AUTHOR("Eric Lammerts, Russell Kroll, Quay Lu, Donald Song, Jason Lewis, Scott McGrath, William McGrath");

MODULE_DESCRIPTION("A driver for the Trust FM Radio card.");

MODULE_LICENSE("GPL");



/* acceptable ports: 0x350 (JP3 shorted), 0x358 (JP3 open) */
@@ -71,26 +38,41 @@ static struct v4l2_queryctrl radio_qctrl[] = { 


static int io = CONFIG_RADIO_TRUST_PORT;

static int radio_nr = -1;

static int ioval = 0xf;

static __u16 curvol;

static __u16 curbass;

static __u16 curtreble;

static unsigned long curfreq;

static int curstereo;

static int curmute;

static unsigned long in_use;



module_param(io, int, 0);

MODULE_PARM_DESC(io, "I/O address of the Trust FM Radio card (0x350 or 0x358)");

module_param(radio_nr, int, 0);



#define RADIO_VERSION KERNEL_VERSION(0, 0, 2)



struct trust {

	struct v4l2_device v4l2_dev;

	struct video_device vdev;

	int io;

	int ioval;

	__u16 curvol;

	__u16 curbass;

	__u16 curtreble;

	int muted;

	unsigned long curfreq;

	int curstereo;

	int curmute;

	struct mutex lock;

};



static struct trust trust_card;



/* i2c addresses */

#define TDA7318_ADDR 0x88

#define TSA6060T_ADDR 0xc4



#define TR_DELAY do { inb(io); inb(io); inb(io); } while(0)

#define TR_SET_SCL outb(ioval |= 2, io)

#define TR_CLR_SCL outb(ioval &= 0xfd, io)

#define TR_SET_SDA outb(ioval |= 1, io)

#define TR_CLR_SDA outb(ioval &= 0xfe, io)

#define TR_DELAY do { inb(tr->io); inb(tr->io); inb(tr->io); } while (0)

#define TR_SET_SCL outb(tr->ioval |= 2, tr->io)

#define TR_CLR_SCL outb(tr->ioval &= 0xfd, tr->io)

#define TR_SET_SDA outb(tr->ioval |= 1, tr->io)

#define TR_CLR_SDA outb(tr->ioval &= 0xfe, tr->io)



static void write_i2c(int n, ...)

static void write_i2c(struct trust *tr, int n, ...)

{

	unsigned char val, mask;

	va_list args;
@@ -136,62 +118,77 @@ static void write_i2c(int n, ...) 
	va_end(args);

}



static void tr_setvol(__u16 vol)

static void tr_setvol(struct trust *tr, __u16 vol)

{

	curvol = vol / 2048;

	write_i2c(2, TDA7318_ADDR, curvol ^ 0x1f);

	mutex_lock(&tr->lock);

	tr->curvol = vol / 2048;

	write_i2c(tr, 2, TDA7318_ADDR, tr->curvol ^ 0x1f);

	mutex_unlock(&tr->lock);

}



static int basstreble2chip[15] = {

	0, 1, 2, 3, 4, 5, 6, 7, 14, 13, 12, 11, 10, 9, 8

};



static void tr_setbass(__u16 bass)

static void tr_setbass(struct trust *tr, __u16 bass)

{

	curbass = bass / 4370;

	write_i2c(2, TDA7318_ADDR, 0x60 | basstreble2chip[curbass]);

	mutex_lock(&tr->lock);

	tr->curbass = bass / 4370;

	write_i2c(tr, 2, TDA7318_ADDR, 0x60 | basstreble2chip[tr->curbass]);

	mutex_unlock(&tr->lock);

}



static void tr_settreble(__u16 treble)

static void tr_settreble(struct trust *tr, __u16 treble)

{

	curtreble = treble / 4370;

	write_i2c(2, TDA7318_ADDR, 0x70 | basstreble2chip[curtreble]);

	mutex_lock(&tr->lock);

	tr->curtreble = treble / 4370;

	write_i2c(tr, 2, TDA7318_ADDR, 0x70 | basstreble2chip[tr->curtreble]);

	mutex_unlock(&tr->lock);

}



static void tr_setstereo(int stereo)

static void tr_setstereo(struct trust *tr, int stereo)

{

	curstereo = !!stereo;

	ioval = (ioval & 0xfb) | (!curstereo << 2);

	outb(ioval, io);

	mutex_lock(&tr->lock);

	tr->curstereo = !!stereo;

	tr->ioval = (tr->ioval & 0xfb) | (!tr->curstereo << 2);

	outb(tr->ioval, tr->io);

	mutex_unlock(&tr->lock);

}



static void tr_setmute(int mute)

static void tr_setmute(struct trust *tr, int mute)

{

	curmute = !!mute;

	ioval = (ioval & 0xf7) | (curmute << 3);

	outb(ioval, io);

	mutex_lock(&tr->lock);

	tr->curmute = !!mute;

	tr->ioval = (tr->ioval & 0xf7) | (tr->curmute << 3);

	outb(tr->ioval, tr->io);

	mutex_unlock(&tr->lock);

}



static int tr_getsigstr(void)

static int tr_getsigstr(struct trust *tr)

{

	int i, v;



	for(i = 0, v = 0; i < 100; i++) v |= inb(io);

	mutex_lock(&tr->lock);

	for (i = 0, v = 0; i < 100; i++)

		v |= inb(tr->io);

	mutex_unlock(&tr->lock);

	return (v & 1) ? 0 : 0xffff;

}



static int tr_getstereo(void)

static int tr_getstereo(struct trust *tr)

{

	/* don't know how to determine it, just return the setting */

	return curstereo;

	return tr->curstereo;

}



static void tr_setfreq(unsigned long f)

static void tr_setfreq(struct trust *tr, unsigned long f)

{

	mutex_lock(&tr->lock);

	tr->curfreq = f;

	f /= 160;	/* Convert to 10 kHz units	*/

	f += 1070;	/* Add 10.7 MHz IF		*/



	write_i2c(5, TSA6060T_ADDR, (f << 1) | 1, f >> 7, 0x60 | ((f >> 15) & 1), 0);

	write_i2c(tr, 5, TSA6060T_ADDR, (f << 1) | 1, f >> 7, 0x60 | ((f >> 15) & 1), 0);

	mutex_unlock(&tr->lock);

}



static int vidioc_querycap(struct file *file, void *priv,
@@ -199,68 +196,75 @@ static int vidioc_querycap(struct file *file, void *priv, 
{

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

	strlcpy(v->card, "Trust FM 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 trust *tr = 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 = (87.5*16000);

	v->rangehigh = (108*16000);

	v->rangelow = 87.5 * 16000;

	v->rangehigh = 108 * 16000;

	v->rxsubchans = V4L2_TUNER_SUB_MONO | V4L2_TUNER_SUB_STEREO;

	v->capability = V4L2_TUNER_CAP_LOW;

	if (tr_getstereo())

	if (tr_getstereo(tr))

		v->audmode = V4L2_TUNER_MODE_STEREO;

	else

		v->audmode = V4L2_TUNER_MODE_MONO;

	v->signal = tr_getsigstr();

	v->signal = tr_getsigstr(tr);

	return 0;

}



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

				struct v4l2_tuner *v)

{

	if (v->index > 0)

		return -EINVAL;

	struct trust *tr = video_drvdata(file);



	if (v->index)

		return -EINVAL;

	tr_setstereo(tr, v->audmode == V4L2_TUNER_MODE_STEREO);

	return 0;

}



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

				struct v4l2_frequency *f)

{

	curfreq = f->frequency;

	tr_setfreq(curfreq);

	struct trust *tr = video_drvdata(file);



	tr_setfreq(tr, f->frequency);

	return 0;

}



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

				struct v4l2_frequency *f)

{

	struct trust *tr = video_drvdata(file);



	f->type = V4L2_TUNER_RADIO;

	f->frequency = curfreq;

	f->frequency = tr->curfreq;

	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;

		}

	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, 2048, 65535);

	case V4L2_CID_AUDIO_BASS:

	case V4L2_CID_AUDIO_TREBLE:

		return v4l2_ctrl_query_fill(qc, 0, 65535, 4370, 32768);

	}

	return -EINVAL;

}
@@ -268,18 +272,20 @@ static int vidioc_queryctrl(struct file *file, void *priv, 
static int vidioc_g_ctrl(struct file *file, void *priv,

				struct v4l2_control *ctrl)

{

	struct trust *tr = video_drvdata(file);



	switch (ctrl->id) {

	case V4L2_CID_AUDIO_MUTE:

		ctrl->value = curmute;

		ctrl->value = tr->curmute;

		return 0;

	case V4L2_CID_AUDIO_VOLUME:

		ctrl->value = curvol * 2048;

		ctrl->value = tr->curvol * 2048;

		return 0;

	case V4L2_CID_AUDIO_BASS:

		ctrl->value = curbass * 4370;

		ctrl->value = tr->curbass * 4370;

		return 0;

	case V4L2_CID_AUDIO_TREBLE:

		ctrl->value = curtreble * 4370;

		ctrl->value = tr->curtreble * 4370;

		return 0;

	}

	return -EINVAL;
@@ -288,34 +294,25 @@ 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 trust *tr = video_drvdata(file);



	switch (ctrl->id) {

	case V4L2_CID_AUDIO_MUTE:

		tr_setmute(ctrl->value);

		tr_setmute(tr, ctrl->value);

		return 0;

	case V4L2_CID_AUDIO_VOLUME:

		tr_setvol(ctrl->value);

		tr_setvol(tr, ctrl->value);

		return 0;

	case V4L2_CID_AUDIO_BASS:

		tr_setbass(ctrl->value);

		tr_setbass(tr, ctrl->value);

		return 0;

	case V4L2_CID_AUDIO_TREBLE:

		tr_settreble(ctrl->value);

		tr_settreble(tr, 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;
@@ -324,34 +321,38 @@ 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 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)

{

	if (a->index != 0)

		return -EINVAL;

	return 0;

	return a->index ? -EINVAL : 0;

}



static int trust_exclusive_open(struct file *file)

static int trust_open(struct file *file)

{

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

	return 0;

}



static int trust_exclusive_release(struct file *file)

static int trust_release(struct file *file)

{

	clear_bit(0, &in_use);

	return 0;

}



static const struct v4l2_file_operations trust_fops = {

	.owner		= THIS_MODULE,

	.open           = trust_exclusive_open,

	.release        = trust_exclusive_release,

	.open           = trust_open,

	.release        = trust_release,

	.ioctl		= video_ioctl2,

};
@@ -370,59 +371,72 @@ static const struct v4l2_ioctl_ops trust_ioctl_ops = { 
	.vidioc_s_input     = vidioc_s_input,

};



static struct video_device trust_radio = {

	.name		= "Trust FM Radio",

	.fops           = &trust_fops,

	.ioctl_ops 	= &trust_ioctl_ops,

	.release	= video_device_release_empty,

};



static int __init trust_init(void)

{

	if(io == -1) {

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

	struct trust *tr = &trust_card;

	struct v4l2_device *v4l2_dev = &tr->v4l2_dev;

	int res;



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

	tr->io = io;

	tr->ioval = 0xf;

	mutex_init(&tr->lock);



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

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

		return -EINVAL;

	}

	if(!request_region(io, 2, "Trust FM Radio")) {

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

	if (!request_region(tr->io, 2, "Trust FM Radio")) {

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

		return -EBUSY;

	}

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

		release_region(io, 2);



	res = v4l2_device_register(NULL, v4l2_dev);

	if (res < 0) {

		release_region(tr->io, 2);

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

		return res;

	}



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

	tr->vdev.v4l2_dev = v4l2_dev;

	tr->vdev.fops = &trust_fops;

	tr->vdev.ioctl_ops = &trust_ioctl_ops;

	tr->vdev.release = video_device_release_empty;

	video_set_drvdata(&tr->vdev, tr);



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

		v4l2_device_unregister(v4l2_dev);

		release_region(tr->io, 2);

		return -EINVAL;

	}



	printk(KERN_INFO "Trust FM Radio card driver v1.0.\n");

	v4l2_info(v4l2_dev, "Trust FM Radio card driver v1.0.\n");



	write_i2c(2, TDA7318_ADDR, 0x80);	/* speaker att. LF = 0 dB */

	write_i2c(2, TDA7318_ADDR, 0xa0);	/* speaker att. RF = 0 dB */

	write_i2c(2, TDA7318_ADDR, 0xc0);	/* speaker att. LR = 0 dB */

	write_i2c(2, TDA7318_ADDR, 0xe0);	/* speaker att. RR = 0 dB */

	write_i2c(2, TDA7318_ADDR, 0x40);	/* stereo 1 input, gain = 18.75 dB */

	write_i2c(tr, 2, TDA7318_ADDR, 0x80);	/* speaker att. LF = 0 dB */

	write_i2c(tr, 2, TDA7318_ADDR, 0xa0);	/* speaker att. RF = 0 dB */

	write_i2c(tr, 2, TDA7318_ADDR, 0xc0);	/* speaker att. LR = 0 dB */

	write_i2c(tr, 2, TDA7318_ADDR, 0xe0);	/* speaker att. RR = 0 dB */

	write_i2c(tr, 2, TDA7318_ADDR, 0x40);	/* stereo 1 input, gain = 18.75 dB */



	tr_setvol(0x8000);

	tr_setbass(0x8000);

	tr_settreble(0x8000);

	tr_setstereo(1);

	tr_setvol(tr, 0xffff);

	tr_setbass(tr, 0x8000);

	tr_settreble(tr, 0x8000);

	tr_setstereo(tr, 1);



	/* mute card - prevents noisy bootups */

	tr_setmute(1);

	tr_setmute(tr, 1);



	return 0;

}



MODULE_AUTHOR("Eric Lammerts, Russell Kroll, Quay Lu, Donald Song, Jason Lewis, Scott McGrath, William McGrath");

MODULE_DESCRIPTION("A driver for the Trust FM Radio card.");

MODULE_LICENSE("GPL");



module_param(io, int, 0);

MODULE_PARM_DESC(io, "I/O address of the Trust FM Radio card (0x350 or 0x358)");

module_param(radio_nr, int, 0);



static void __exit cleanup_trust_module(void)

{

	video_unregister_device(&trust_radio);

	release_region(io, 2);

	struct trust *tr = &trust_card;



	video_unregister_device(&tr->vdev);

	v4l2_device_unregister(&tr->v4l2_dev);

	release_region(tr->io, 2);

}



module_init(trust_init);