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V4L/DVB (10892): radio-typhoon: 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 13:54:52 -03:00
committed by Mauro Carvalho Chehab
parent 1dc8aafc79
commit f1bfe89b67
1 changed files with 145 additions and 213 deletions
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358
drivers/media/radio/radio-typhoon.c
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@@ -34,37 +34,16 @@
#include <linux/module.h> /* Modules */ #include <linux/module.h> /* Modules */
#include <linux/init.h> /* Initdata */ #include <linux/init.h> /* Initdata */
#include <linux/ioport.h> /* request_region */ #include <linux/ioport.h> /* request_region */
#include <linux/proc_fs.h> /* radio card status report */ #include <linux/version.h> /* for KERNEL_VERSION MACRO */
#include <linux/seq_file.h>
#include <asm/io.h> /* outb, outb_p */
#include <asm/uaccess.h> /* copy to/from user */
#include <linux/videodev2.h> /* kernel radio structs */ #include <linux/videodev2.h> /* kernel radio structs */
#include <media/v4l2-common.h> #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> #include <media/v4l2-ioctl.h>
#include <linux/version.h> /* for KERNEL_VERSION MACRO */ MODULE_AUTHOR("Dr. Henrik Seidel");
#define RADIO_VERSION KERNEL_VERSION(0,1,1) MODULE_DESCRIPTION("A driver for the Typhoon radio card (a.k.a. EcoRadio).");
#define BANNER "Typhoon Radio Card driver v0.1.1\n" 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 = 1<<14,
.default_value = 0xff,
.type = V4L2_CTRL_TYPE_INTEGER,
}
};
#ifndef CONFIG_RADIO_TYPHOON_PORT #ifndef CONFIG_RADIO_TYPHOON_PORT
#define CONFIG_RADIO_TYPHOON_PORT -1 #define CONFIG_RADIO_TYPHOON_PORT -1
@@ -74,13 +53,26 @@ static struct v4l2_queryctrl radio_qctrl[] = {
#define CONFIG_RADIO_TYPHOON_MUTEFREQ 0 #define CONFIG_RADIO_TYPHOON_MUTEFREQ 0
#endif #endif
#ifndef CONFIG_PROC_FS static int io = CONFIG_RADIO_TYPHOON_PORT;
#undef CONFIG_RADIO_TYPHOON_PROC_FS static int radio_nr = -1;
#endif
struct typhoon_device { module_param(io, int, 0);
unsigned long in_use; MODULE_PARM_DESC(io, "I/O address of the Typhoon card (0x316 or 0x336)");
int iobase;
module_param(radio_nr, int, 0);
static unsigned long mutefreq = CONFIG_RADIO_TYPHOON_MUTEFREQ;
module_param(mutefreq, ulong, 0);
MODULE_PARM_DESC(mutefreq, "Frequency used when muting the card (in kHz)");
#define RADIO_VERSION KERNEL_VERSION(0, 1, 1)
#define BANNER "Typhoon Radio Card driver v0.1.1\n"
struct typhoon {
struct v4l2_device v4l2_dev;
struct video_device vdev;
int io;
int curvol; int curvol;
int muted; int muted;
unsigned long curfreq; unsigned long curfreq;
@@ -88,25 +80,19 @@ struct typhoon_device {
struct mutex lock; struct mutex lock;
}; };
static void typhoon_setvol_generic(struct typhoon_device *dev, int vol); static struct typhoon typhoon_card;
static int typhoon_setfreq_generic(struct typhoon_device *dev,
unsigned long frequency);
static int typhoon_setfreq(struct typhoon_device *dev, unsigned long frequency);
static void typhoon_mute(struct typhoon_device *dev);
static void typhoon_unmute(struct typhoon_device *dev);
static int typhoon_setvol(struct typhoon_device *dev, int vol);
static void typhoon_setvol_generic(struct typhoon_device *dev, int vol) static void typhoon_setvol_generic(struct typhoon *dev, int vol)
{ {
mutex_lock(&dev->lock); mutex_lock(&dev->lock);
vol >>= 14; /* Map 16 bit to 2 bit */ vol >>= 14; /* Map 16 bit to 2 bit */
vol &= 3; vol &= 3;
outb_p(vol / 2, dev->iobase); /* Set the volume, high bit. */ outb_p(vol / 2, dev->io); /* Set the volume, high bit. */
outb_p(vol % 2, dev->iobase + 2); /* Set the volume, low bit. */ outb_p(vol % 2, dev->io + 2); /* Set the volume, low bit. */
mutex_unlock(&dev->lock); mutex_unlock(&dev->lock);
} }
static int typhoon_setfreq_generic(struct typhoon_device *dev, static int typhoon_setfreq_generic(struct typhoon *dev,
unsigned long frequency) unsigned long frequency)
{ {
unsigned long outval; unsigned long outval;
@@ -130,22 +116,22 @@ static int typhoon_setfreq_generic(struct typhoon_device *dev,
outval -= (10 * x * x + 10433) / 20866; outval -= (10 * x * x + 10433) / 20866;
outval += 4 * x - 11505; outval += 4 * x - 11505;
outb_p((outval >> 8) & 0x01, dev->iobase + 4); outb_p((outval >> 8) & 0x01, dev->io + 4);
outb_p(outval >> 9, dev->iobase + 6); outb_p(outval >> 9, dev->io + 6);
outb_p(outval & 0xff, dev->iobase + 8); outb_p(outval & 0xff, dev->io + 8);
mutex_unlock(&dev->lock); mutex_unlock(&dev->lock);
return 0; return 0;
} }
static int typhoon_setfreq(struct typhoon_device *dev, unsigned long frequency) static int typhoon_setfreq(struct typhoon *dev, unsigned long frequency)
{ {
typhoon_setfreq_generic(dev, frequency); typhoon_setfreq_generic(dev, frequency);
dev->curfreq = frequency; dev->curfreq = frequency;
return 0; return 0;
} }
static void typhoon_mute(struct typhoon_device *dev) static void typhoon_mute(struct typhoon *dev)
{ {
if (dev->muted == 1) if (dev->muted == 1)
return; return;
@@ -154,7 +140,7 @@ static void typhoon_mute(struct typhoon_device *dev)
dev->muted = 1; dev->muted = 1;
} }
static void typhoon_unmute(struct typhoon_device *dev) static void typhoon_unmute(struct typhoon *dev)
{ {
if (dev->muted == 0) if (dev->muted == 0)
return; return;
@@ -163,7 +149,7 @@ static void typhoon_unmute(struct typhoon_device *dev)
dev->muted = 0; dev->muted = 0;
} }
static int typhoon_setvol(struct typhoon_device *dev, int vol) static int typhoon_setvol(struct typhoon *dev, int vol)
{ {
if (dev->muted && vol != 0) { /* user is unmuting the card */ if (dev->muted && vol != 0) { /* user is unmuting the card */
dev->curvol = vol; dev->curvol = vol;
@@ -188,9 +174,9 @@ static int vidioc_querycap(struct file *file, void *priv,
{ {
strlcpy(v->driver, "radio-typhoon", sizeof(v->driver)); strlcpy(v->driver, "radio-typhoon", sizeof(v->driver));
strlcpy(v->card, "Typhoon Radio", sizeof(v->card)); strlcpy(v->card, "Typhoon 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;
} }
@@ -200,10 +186,10 @@ static int vidioc_g_tuner(struct file *file, void *priv,
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; v->rxsubchans = V4L2_TUNER_SUB_MONO;
v->capability = V4L2_TUNER_CAP_LOW; v->capability = V4L2_TUNER_CAP_LOW;
v->audmode = V4L2_TUNER_MODE_MONO; v->audmode = V4L2_TUNER_MODE_MONO;
@@ -214,44 +200,37 @@ static int vidioc_g_tuner(struct file *file, void *priv,
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) return v->index ? -EINVAL : 0;
return -EINVAL; }
static int vidioc_g_frequency(struct file *file, void *priv,
struct v4l2_frequency *f)
{
struct typhoon *dev = video_drvdata(file);
f->type = V4L2_TUNER_RADIO;
f->frequency = dev->curfreq;
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)
{ {
struct typhoon_device *typhoon = video_drvdata(file); struct typhoon *dev = video_drvdata(file);
typhoon->curfreq = f->frequency;
typhoon_setfreq(typhoon, typhoon->curfreq);
return 0;
}
static int vidioc_g_frequency(struct file *file, void *priv,
struct v4l2_frequency *f)
{
struct typhoon_device *typhoon = video_drvdata(file);
f->type = V4L2_TUNER_RADIO;
f->frequency = typhoon->curfreq;
dev->curfreq = f->frequency;
typhoon_setfreq(dev, dev->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, 16384, 65535);
sizeof(*qc));
return 0;
}
} }
return -EINVAL; return -EINVAL;
} }
@@ -259,14 +238,14 @@ 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 typhoon_device *typhoon = video_drvdata(file); struct typhoon *dev = video_drvdata(file);
switch (ctrl->id) { switch (ctrl->id) {
case V4L2_CID_AUDIO_MUTE: case V4L2_CID_AUDIO_MUTE:
ctrl->value = typhoon->muted; ctrl->value = dev->muted;
return 0; return 0;
case V4L2_CID_AUDIO_VOLUME: case V4L2_CID_AUDIO_VOLUME:
ctrl->value = typhoon->curvol; ctrl->value = dev->curvol;
return 0; return 0;
} }
return -EINVAL; return -EINVAL;
@@ -275,33 +254,22 @@ 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 typhoon_device *typhoon = video_drvdata(file); struct typhoon *dev = video_drvdata(file);
switch (ctrl->id) { switch (ctrl->id) {
case V4L2_CID_AUDIO_MUTE: case V4L2_CID_AUDIO_MUTE:
if (ctrl->value) if (ctrl->value)
typhoon_mute(typhoon); typhoon_mute(dev);
else else
typhoon_unmute(typhoon); typhoon_unmute(dev);
return 0; return 0;
case V4L2_CID_AUDIO_VOLUME: case V4L2_CID_AUDIO_VOLUME:
typhoon_setvol(typhoon, ctrl->value); typhoon_setvol(dev, 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;
@@ -310,45 +278,62 @@ 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 vidioc_log_status(struct file *file, void *priv)
{
struct typhoon *dev = video_drvdata(file);
struct v4l2_device *v4l2_dev = &dev->v4l2_dev;
v4l2_info(v4l2_dev, BANNER);
#ifdef MODULE
v4l2_info(v4l2_dev, "Load type: Driver loaded as a module\n\n");
#else
v4l2_info(v4l2_dev, "Load type: Driver compiled into kernel\n\n");
#endif
v4l2_info(v4l2_dev, "frequency = %lu kHz\n", dev->curfreq >> 4);
v4l2_info(v4l2_dev, "volume = %d\n", dev->curvol);
v4l2_info(v4l2_dev, "mute = %s\n", dev->muted ? "on" : "off");
v4l2_info(v4l2_dev, "io = 0x%x\n", dev->io);
v4l2_info(v4l2_dev, "mute frequency = %lu kHz\n", dev->mutefreq >> 4);
return 0; return 0;
} }
static struct typhoon_device typhoon_unit = static int typhoon_open(struct file *file)
{ {
.iobase = CONFIG_RADIO_TYPHOON_PORT, return 0;
.curfreq = CONFIG_RADIO_TYPHOON_MUTEFREQ,
.mutefreq = CONFIG_RADIO_TYPHOON_MUTEFREQ,
};
static int typhoon_exclusive_open(struct file *file)
{
return test_and_set_bit(0, &typhoon_unit.in_use) ? -EBUSY : 0;
} }
static int typhoon_exclusive_release(struct file *file) static int typhoon_release(struct file *file)
{ {
clear_bit(0, &typhoon_unit.in_use);
return 0; return 0;
} }
static const struct v4l2_file_operations typhoon_fops = { static const struct v4l2_file_operations typhoon_fops = {
.owner = THIS_MODULE, .owner = THIS_MODULE,
.open = typhoon_exclusive_open, .open = typhoon_open,
.release = typhoon_exclusive_release, .release = typhoon_release,
.ioctl = video_ioctl2, .ioctl = video_ioctl2,
}; };
static const struct v4l2_ioctl_ops typhoon_ioctl_ops = { static const struct v4l2_ioctl_ops typhoon_ioctl_ops = {
.vidioc_log_status = vidioc_log_status,
.vidioc_querycap = vidioc_querycap, .vidioc_querycap = vidioc_querycap,
.vidioc_g_tuner = vidioc_g_tuner, .vidioc_g_tuner = vidioc_g_tuner,
.vidioc_s_tuner = vidioc_s_tuner, .vidioc_s_tuner = vidioc_s_tuner,
@@ -363,125 +348,72 @@ static const struct v4l2_ioctl_ops typhoon_ioctl_ops = {
.vidioc_s_ctrl = vidioc_s_ctrl, .vidioc_s_ctrl = vidioc_s_ctrl,
}; };
static struct video_device typhoon_radio = {
.name = "Typhoon Radio",
.fops = &typhoon_fops,
.ioctl_ops = &typhoon_ioctl_ops,
.release = video_device_release_empty,
};
#ifdef CONFIG_RADIO_TYPHOON_PROC_FS
static int typhoon_proc_show(struct seq_file *m, void *v)
{
#ifdef MODULE
#define MODULEPROCSTRING "Driver loaded as a module"
#else
#define MODULEPROCSTRING "Driver compiled into kernel"
#endif
seq_puts(m, BANNER);
seq_puts(m, "Load type: " MODULEPROCSTRING "\n\n");
seq_printf(m, "frequency = %lu kHz\n",
typhoon_unit.curfreq >> 4);
seq_printf(m, "volume = %d\n", typhoon_unit.curvol);
seq_printf(m, "mute = %s\n", typhoon_unit.muted ?
"on" : "off");
seq_printf(m, "iobase = 0x%x\n", typhoon_unit.iobase);
seq_printf(m, "mute frequency = %lu kHz\n",
typhoon_unit.mutefreq >> 4);
return 0;
}
static int typhoon_proc_open(struct inode *inode, struct file *file)
{
return single_open(file, typhoon_proc_show, NULL);
}
static const struct file_operations typhoon_proc_fops = {
.owner = THIS_MODULE,
.open = typhoon_proc_open,
.read = seq_read,
.llseek = seq_lseek,
.release = single_release,
};
#endif /* CONFIG_RADIO_TYPHOON_PROC_FS */
MODULE_AUTHOR("Dr. Henrik Seidel");
MODULE_DESCRIPTION("A driver for the Typhoon radio card (a.k.a. EcoRadio).");
MODULE_LICENSE("GPL");
static int io = -1;
static int radio_nr = -1;
module_param(io, int, 0);
MODULE_PARM_DESC(io, "I/O address of the Typhoon card (0x316 or 0x336)");
module_param(radio_nr, int, 0);
#ifdef MODULE
static unsigned long mutefreq;
module_param(mutefreq, ulong, 0);
MODULE_PARM_DESC(mutefreq, "Frequency used when muting the card (in kHz)");
#endif
static int __init typhoon_init(void) static int __init typhoon_init(void)
{ {
#ifdef MODULE struct typhoon *dev = &typhoon_card;
if (io == -1) { struct v4l2_device *v4l2_dev = &dev->v4l2_dev;
printk(KERN_ERR "radio-typhoon: You must set an I/O address with io=0x316 or io=0x336\n"); int res;
strlcpy(v4l2_dev->name, "typhoon", sizeof(v4l2_dev->name));
dev->io = io;
dev->curfreq = dev->mutefreq = mutefreq;
if (dev->io == -1) {
v4l2_err(v4l2_dev, "You must set an I/O address with io=0x316 or io=0x336\n");
return -EINVAL; return -EINVAL;
} }
typhoon_unit.iobase = io;
if (mutefreq < 87000 || mutefreq > 108500) { if (dev->mutefreq < 87000 || dev->mutefreq > 108500) {
printk(KERN_ERR "radio-typhoon: You must set a frequency (in kHz) used when muting the card,\n"); v4l2_err(v4l2_dev, "You must set a frequency (in kHz) used when muting the card,\n");
printk(KERN_ERR "radio-typhoon: e.g. with \"mutefreq=87500\" (87000 <= mutefreq <= 108500)\n"); v4l2_err(v4l2_dev, "e.g. with \"mutefreq=87500\" (87000 <= mutefreq <= 108500)\n");
return -EINVAL; return -EINVAL;
} }
typhoon_unit.mutefreq = mutefreq;
#endif /* MODULE */
printk(KERN_INFO BANNER); mutex_init(&dev->lock);
mutex_init(&typhoon_unit.lock); if (!request_region(dev->io, 8, "typhoon")) {
io = typhoon_unit.iobase; v4l2_err(v4l2_dev, "port 0x%x already in use\n",
if (!request_region(io, 8, "typhoon")) { dev->io);
printk(KERN_ERR "radio-typhoon: port 0x%x already in use\n",
typhoon_unit.iobase);
return -EBUSY; return -EBUSY;
} }
video_set_drvdata(&typhoon_radio, &typhoon_unit); res = v4l2_device_register(NULL, v4l2_dev);
if (video_register_device(&typhoon_radio, VFL_TYPE_RADIO, radio_nr) < 0) { if (res < 0) {
release_region(io, 8); release_region(dev->io, 8);
v4l2_err(v4l2_dev, "Could not register v4l2_device\n");
return res;
}
v4l2_info(v4l2_dev, BANNER);
strlcpy(dev->vdev.name, v4l2_dev->name, sizeof(dev->vdev.name));
dev->vdev.v4l2_dev = v4l2_dev;
dev->vdev.fops = &typhoon_fops;
dev->vdev.ioctl_ops = &typhoon_ioctl_ops;
dev->vdev.release = video_device_release_empty;
video_set_drvdata(&dev->vdev, dev);
if (video_register_device(&dev->vdev, VFL_TYPE_RADIO, radio_nr) < 0) {
v4l2_device_unregister(&dev->v4l2_dev);
release_region(dev->io, 8);
return -EINVAL; return -EINVAL;
} }
printk(KERN_INFO "radio-typhoon: port 0x%x.\n", typhoon_unit.iobase); v4l2_info(v4l2_dev, "port 0x%x.\n", dev->io);
printk(KERN_INFO "radio-typhoon: mute frequency is %lu kHz.\n", v4l2_info(v4l2_dev, "mute frequency is %lu kHz.\n", dev->mutefreq);
typhoon_unit.mutefreq); dev->mutefreq <<= 4;
typhoon_unit.mutefreq <<= 4;
/* mute card - prevents noisy bootups */ /* mute card - prevents noisy bootups */
typhoon_mute(&typhoon_unit); typhoon_mute(dev);
#ifdef CONFIG_RADIO_TYPHOON_PROC_FS
if (!proc_create("driver/radio-typhoon", 0, NULL, &typhoon_proc_fops))
printk(KERN_ERR "radio-typhoon: registering /proc/driver/radio-typhoon failed\n");
#endif
return 0; return 0;
} }
static void __exit typhoon_cleanup_module(void) static void __exit typhoon_exit(void)
{ {
struct typhoon *dev = &typhoon_card;
#ifdef CONFIG_RADIO_TYPHOON_PROC_FS video_unregister_device(&dev->vdev);
remove_proc_entry("driver/radio-typhoon", NULL); v4l2_device_unregister(&dev->v4l2_dev);
#endif release_region(dev->io, 8);
video_unregister_device(&typhoon_radio);
release_region(io, 8);
} }
module_init(typhoon_init); module_init(typhoon_init);
module_exit(typhoon_cleanup_module); module_exit(typhoon_exit);