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

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Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Hans Verkuil 2009-03-06 13:54:23 -03:00 committed by Mauro Carvalho Chehab
parent 5ac3d5bf4a
commit 1dc8aafc79
1 changed files with 181 additions and 167 deletions
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348
drivers/media/radio/radio-trust.c
View file

@ -19,49 +19,16 @@
#include <linux/module.h> #include <linux/module.h>
#include <linux/init.h> #include <linux/init.h>
#include <linux/ioport.h> #include <linux/ioport.h>
#include <asm/io.h> #include <linux/version.h> /* for KERNEL_VERSION MACRO */
#include <asm/uaccess.h>
#include <linux/videodev2.h> #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 <media/v4l2-ioctl.h>
#include <linux/version.h> /* for KERNEL_VERSION MACRO */ MODULE_AUTHOR("Eric Lammerts, Russell Kroll, Quay Lu, Donald Song, Jason Lewis, Scott McGrath, William McGrath");
#define RADIO_VERSION KERNEL_VERSION(0,0,2) MODULE_DESCRIPTION("A driver for the Trust FM Radio card.");
MODULE_LICENSE("GPL");
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,
},
};
/* acceptable ports: 0x350 (JP3 shorted), 0x358 (JP3 open) */ /* 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 io = CONFIG_RADIO_TRUST_PORT;
static int radio_nr = -1; static int radio_nr = -1;
static int ioval = 0xf;
static __u16 curvol; module_param(io, int, 0);
static __u16 curbass; MODULE_PARM_DESC(io, "I/O address of the Trust FM Radio card (0x350 or 0x358)");
static __u16 curtreble; module_param(radio_nr, int, 0);
static unsigned long curfreq;
static int curstereo; #define RADIO_VERSION KERNEL_VERSION(0, 0, 2)
static int curmute;
static unsigned long in_use; 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 */ /* i2c addresses */
#define TDA7318_ADDR 0x88 #define TDA7318_ADDR 0x88
#define TSA6060T_ADDR 0xc4 #define TSA6060T_ADDR 0xc4
#define TR_DELAY do { inb(io); inb(io); inb(io); } while(0) #define TR_DELAY do { inb(tr->io); inb(tr->io); inb(tr->io); } while (0)
#define TR_SET_SCL outb(ioval |= 2, io) #define TR_SET_SCL outb(tr->ioval |= 2, tr->io)
#define TR_CLR_SCL outb(ioval &= 0xfd, io) #define TR_CLR_SCL outb(tr->ioval &= 0xfd, tr->io)
#define TR_SET_SDA outb(ioval |= 1, io) #define TR_SET_SDA outb(tr->ioval |= 1, tr->io)
#define TR_CLR_SDA outb(ioval &= 0xfe, 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; unsigned char val, mask;
va_list args; va_list args;
@ -136,62 +118,77 @@ static void write_i2c(int n, ...)
va_end(args); va_end(args);
} }
static void tr_setvol(__u16 vol) static void tr_setvol(struct trust *tr, __u16 vol)
{ {
curvol = vol / 2048; mutex_lock(&tr->lock);
write_i2c(2, TDA7318_ADDR, curvol ^ 0x1f); tr->curvol = vol / 2048;
write_i2c(tr, 2, TDA7318_ADDR, tr->curvol ^ 0x1f);
mutex_unlock(&tr->lock);
} }
static int basstreble2chip[15] = { static int basstreble2chip[15] = {
0, 1, 2, 3, 4, 5, 6, 7, 14, 13, 12, 11, 10, 9, 8 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; mutex_lock(&tr->lock);
write_i2c(2, TDA7318_ADDR, 0x60 | basstreble2chip[curbass]); 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; mutex_lock(&tr->lock);
write_i2c(2, TDA7318_ADDR, 0x70 | basstreble2chip[curtreble]); 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; mutex_lock(&tr->lock);
ioval = (ioval & 0xfb) | (!curstereo << 2); tr->curstereo = !!stereo;
outb(ioval, io); 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; mutex_lock(&tr->lock);
ioval = (ioval & 0xf7) | (curmute << 3); tr->curmute = !!mute;
outb(ioval, io); 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; int i, v;
for(i = 0, v = 0; i < 100; i++) v |= inb(io); mutex_lock(&tr->lock);
return (v & 1)? 0 : 0xffff; 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 */ /* 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 /= 160; /* Convert to 10 kHz units */
f += 1070; /* Add 10.7 MHz IF */ f += 1070; /* Add 10.7 MHz IF */
write_i2c(tr, 5, TSA6060T_ADDR, (f << 1) | 1, f >> 7, 0x60 | ((f >> 15) & 1), 0);
write_i2c(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, 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->driver, "radio-trust", sizeof(v->driver));
strlcpy(v->card, "Trust FM Radio", sizeof(v->card)); 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->version = RADIO_VERSION;
v->capabilities = V4L2_CAP_TUNER; v->capabilities = V4L2_CAP_TUNER | V4L2_CAP_RADIO;
return 0; return 0;
} }
static int vidioc_g_tuner(struct file *file, void *priv, static int vidioc_g_tuner(struct file *file, void *priv,
struct v4l2_tuner *v) struct v4l2_tuner *v)
{ {
struct trust *tr = video_drvdata(file);
if (v->index > 0) if (v->index > 0)
return -EINVAL; return -EINVAL;
strcpy(v->name, "FM"); strlcpy(v->name, "FM", sizeof(v->name));
v->type = V4L2_TUNER_RADIO; v->type = V4L2_TUNER_RADIO;
v->rangelow = (87.5*16000); v->rangelow = 87.5 * 16000;
v->rangehigh = (108*16000); v->rangehigh = 108 * 16000;
v->rxsubchans = V4L2_TUNER_SUB_MONO|V4L2_TUNER_SUB_STEREO; v->rxsubchans = V4L2_TUNER_SUB_MONO | V4L2_TUNER_SUB_STEREO;
v->capability = V4L2_TUNER_CAP_LOW; v->capability = V4L2_TUNER_CAP_LOW;
if (tr_getstereo()) if (tr_getstereo(tr))
v->audmode = V4L2_TUNER_MODE_STEREO; v->audmode = V4L2_TUNER_MODE_STEREO;
else else
v->audmode = V4L2_TUNER_MODE_MONO; v->audmode = V4L2_TUNER_MODE_MONO;
v->signal = tr_getsigstr(); v->signal = tr_getsigstr(tr);
return 0; return 0;
} }
static int vidioc_s_tuner(struct file *file, void *priv, static int vidioc_s_tuner(struct file *file, void *priv,
struct v4l2_tuner *v) struct v4l2_tuner *v)
{ {
if (v->index > 0) struct trust *tr = video_drvdata(file);
return -EINVAL;
if (v->index)
return -EINVAL;
tr_setstereo(tr, v->audmode == V4L2_TUNER_MODE_STEREO);
return 0; return 0;
} }
static int vidioc_s_frequency(struct file *file, void *priv, static int vidioc_s_frequency(struct file *file, void *priv,
struct v4l2_frequency *f) struct v4l2_frequency *f)
{ {
curfreq = f->frequency; struct trust *tr = video_drvdata(file);
tr_setfreq(curfreq);
tr_setfreq(tr, f->frequency);
return 0; return 0;
} }
static int vidioc_g_frequency(struct file *file, void *priv, static int vidioc_g_frequency(struct file *file, void *priv,
struct v4l2_frequency *f) struct v4l2_frequency *f)
{ {
struct trust *tr = video_drvdata(file);
f->type = V4L2_TUNER_RADIO; f->type = V4L2_TUNER_RADIO;
f->frequency = curfreq; f->frequency = tr->curfreq;
return 0; return 0;
} }
static int vidioc_queryctrl(struct file *file, void *priv, static int vidioc_queryctrl(struct file *file, void *priv,
struct v4l2_queryctrl *qc) struct v4l2_queryctrl *qc)
{ {
int i; switch (qc->id) {
case V4L2_CID_AUDIO_MUTE:
for (i = 0; i < ARRAY_SIZE(radio_qctrl); i++) { return v4l2_ctrl_query_fill(qc, 0, 1, 1, 1);
if (qc->id && qc->id == radio_qctrl[i].id) { case V4L2_CID_AUDIO_VOLUME:
memcpy(qc, &(radio_qctrl[i]), return v4l2_ctrl_query_fill(qc, 0, 65535, 2048, 65535);
sizeof(*qc)); case V4L2_CID_AUDIO_BASS:
return 0; case V4L2_CID_AUDIO_TREBLE:
} return v4l2_ctrl_query_fill(qc, 0, 65535, 4370, 32768);
} }
return -EINVAL; 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, static int vidioc_g_ctrl(struct file *file, void *priv,
struct v4l2_control *ctrl) struct v4l2_control *ctrl)
{ {
struct trust *tr = video_drvdata(file);
switch (ctrl->id) { switch (ctrl->id) {
case V4L2_CID_AUDIO_MUTE: case V4L2_CID_AUDIO_MUTE:
ctrl->value = curmute; ctrl->value = tr->curmute;
return 0; return 0;
case V4L2_CID_AUDIO_VOLUME: case V4L2_CID_AUDIO_VOLUME:
ctrl->value = curvol * 2048; ctrl->value = tr->curvol * 2048;
return 0; return 0;
case V4L2_CID_AUDIO_BASS: case V4L2_CID_AUDIO_BASS:
ctrl->value = curbass * 4370; ctrl->value = tr->curbass * 4370;
return 0; return 0;
case V4L2_CID_AUDIO_TREBLE: case V4L2_CID_AUDIO_TREBLE:
ctrl->value = curtreble * 4370; ctrl->value = tr->curtreble * 4370;
return 0; return 0;
} }
return -EINVAL; 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, static int vidioc_s_ctrl(struct file *file, void *priv,
struct v4l2_control *ctrl) struct v4l2_control *ctrl)
{ {
struct trust *tr = video_drvdata(file);
switch (ctrl->id) { switch (ctrl->id) {
case V4L2_CID_AUDIO_MUTE: case V4L2_CID_AUDIO_MUTE:
tr_setmute(ctrl->value); tr_setmute(tr, ctrl->value);
return 0; return 0;
case V4L2_CID_AUDIO_VOLUME: case V4L2_CID_AUDIO_VOLUME:
tr_setvol(ctrl->value); tr_setvol(tr, ctrl->value);
return 0; return 0;
case V4L2_CID_AUDIO_BASS: case V4L2_CID_AUDIO_BASS:
tr_setbass(ctrl->value); tr_setbass(tr, ctrl->value);
return 0; return 0;
case V4L2_CID_AUDIO_TREBLE: case V4L2_CID_AUDIO_TREBLE:
tr_settreble(ctrl->value); tr_settreble(tr, ctrl->value);
return 0; return 0;
} }
return -EINVAL; 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) static int vidioc_g_input(struct file *filp, void *priv, unsigned int *i)
{ {
*i = 0; *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) static int vidioc_s_input(struct file *filp, void *priv, unsigned int i)
{ {
if (i != 0) return i ? -EINVAL : 0;
return -EINVAL; }
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; return 0;
} }
static int vidioc_s_audio(struct file *file, void *priv, static int vidioc_s_audio(struct file *file, void *priv,
struct v4l2_audio *a) struct v4l2_audio *a)
{ {
if (a->index != 0) return a->index ? -EINVAL : 0;
return -EINVAL; }
static int trust_open(struct file *file)
{
return 0; return 0;
} }
static int trust_exclusive_open(struct file *file) static int trust_release(struct file *file)
{ {
return test_and_set_bit(0, &in_use) ? -EBUSY : 0;
}
static int trust_exclusive_release(struct file *file)
{
clear_bit(0, &in_use);
return 0; return 0;
} }
static const struct v4l2_file_operations trust_fops = { static const struct v4l2_file_operations trust_fops = {
.owner = THIS_MODULE, .owner = THIS_MODULE,
.open = trust_exclusive_open, .open = trust_open,
.release = trust_exclusive_release, .release = trust_release,
.ioctl = video_ioctl2, .ioctl = video_ioctl2,
}; };
@ -370,59 +371,72 @@ static const struct v4l2_ioctl_ops trust_ioctl_ops = {
.vidioc_s_input = vidioc_s_input, .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) static int __init trust_init(void)
{ {
if(io == -1) { struct trust *tr = &trust_card;
printk(KERN_ERR "You must set an I/O address with io=0x???\n"); 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; return -EINVAL;
} }
if(!request_region(io, 2, "Trust FM Radio")) { if (!request_region(tr->io, 2, "Trust FM Radio")) {
printk(KERN_ERR "trust: port 0x%x already in use\n", io); v4l2_err(v4l2_dev, "port 0x%x already in use\n", tr->io);
return -EBUSY; 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; 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(tr, 2, TDA7318_ADDR, 0x80); /* speaker att. LF = 0 dB */
write_i2c(2, TDA7318_ADDR, 0xa0); /* speaker att. RF = 0 dB */ write_i2c(tr, 2, TDA7318_ADDR, 0xa0); /* speaker att. RF = 0 dB */
write_i2c(2, TDA7318_ADDR, 0xc0); /* speaker att. LR = 0 dB */ write_i2c(tr, 2, TDA7318_ADDR, 0xc0); /* speaker att. LR = 0 dB */
write_i2c(2, TDA7318_ADDR, 0xe0); /* speaker att. RR = 0 dB */ write_i2c(tr, 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, 0x40); /* stereo 1 input, gain = 18.75 dB */
tr_setvol(0x8000); tr_setvol(tr, 0xffff);
tr_setbass(0x8000); tr_setbass(tr, 0x8000);
tr_settreble(0x8000); tr_settreble(tr, 0x8000);
tr_setstereo(1); tr_setstereo(tr, 1);
/* mute card - prevents noisy bootups */ /* mute card - prevents noisy bootups */
tr_setmute(1); tr_setmute(tr, 1);
return 0; 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) static void __exit cleanup_trust_module(void)
{ {
video_unregister_device(&trust_radio); struct trust *tr = &trust_card;
release_region(io, 2);
video_unregister_device(&tr->vdev);
v4l2_device_unregister(&tr->v4l2_dev);
release_region(tr->io, 2);
} }
module_init(trust_init); module_init(trust_init);