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V4L/DVB (10881): radio-aztech: 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 13:48:18 -03:00
committed by Mauro Carvalho Chehab
parent 151c3f8252
commit e697e12ece
1 changed files with 181 additions and 198 deletions
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379
drivers/media/radio/radio-aztech.c
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@@ -29,33 +29,16 @@
#include <linux/init.h> /* Initdata */ #include <linux/init.h> /* Initdata */
#include <linux/ioport.h> /* request_region */ #include <linux/ioport.h> /* request_region */
#include <linux/delay.h> /* udelay */ #include <linux/delay.h> /* udelay */
#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/version.h> /* for KERNEL_VERSION MACRO */
#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("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 Aztech 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 = 0xff,
.step = 1,
.default_value = 0xff,
.type = V4L2_CTRL_TYPE_INTEGER,
}
};
/* acceptable ports: 0x350 (JP3 shorted), 0x358 (JP3 open) */ /* acceptable ports: 0x350 (JP3 shorted), 0x358 (JP3 open) */
@@ -66,55 +49,64 @@ static struct v4l2_queryctrl radio_qctrl[] = {
static int io = CONFIG_RADIO_AZTECH_PORT; static int io = CONFIG_RADIO_AZTECH_PORT;
static int radio_nr = -1; static int radio_nr = -1;
static int radio_wait_time = 1000; static int radio_wait_time = 1000;
static struct mutex lock;
struct az_device module_param(io, int, 0);
module_param(radio_nr, int, 0);
MODULE_PARM_DESC(io, "I/O address of the Aztech card (0x350 or 0x358)");
#define RADIO_VERSION KERNEL_VERSION(0, 0, 2)
struct aztech
{ {
unsigned long in_use; struct v4l2_device v4l2_dev;
struct video_device vdev;
int io;
int curvol; int curvol;
unsigned long curfreq; unsigned long curfreq;
int stereo; int stereo;
struct mutex lock;
}; };
static struct aztech aztech_card;
static int volconvert(int level) static int volconvert(int level)
{ {
level>>=14; /* Map 16bits down to 2 bit */ level >>= 14; /* Map 16bits down to 2 bit */
level&=3; level &= 3;
/* convert to card-friendly values */ /* convert to card-friendly values */
switch (level) switch (level) {
{ case 0:
case 0: return 0;
return 0; case 1:
case 1: return 1;
return 1; case 2:
case 2: return 4;
return 4; case 3:
case 3: return 5;
return 5;
} }
return 0; /* Quieten gcc */ return 0; /* Quieten gcc */
} }
static void send_0_byte (struct az_device *dev) static void send_0_byte(struct aztech *az)
{ {
udelay(radio_wait_time); udelay(radio_wait_time);
outb_p(2+volconvert(dev->curvol), io); outb_p(2 + volconvert(az->curvol), az->io);
outb_p(64+2+volconvert(dev->curvol), io); outb_p(64 + 2 + volconvert(az->curvol), az->io);
} }
static void send_1_byte (struct az_device *dev) static void send_1_byte(struct aztech *az)
{ {
udelay (radio_wait_time); udelay (radio_wait_time);
outb_p(128+2+volconvert(dev->curvol), io); outb_p(128 + 2 + volconvert(az->curvol), az->io);
outb_p(128+64+2+volconvert(dev->curvol), io); outb_p(128 + 64 + 2 + volconvert(az->curvol), az->io);
} }
static int az_setvol(struct az_device *dev, int vol) static int az_setvol(struct aztech *az, int vol)
{ {
mutex_lock(&lock); mutex_lock(&az->lock);
outb (volconvert(vol), io); outb(volconvert(vol), az->io);
mutex_unlock(&lock); mutex_unlock(&az->lock);
return 0; return 0;
} }
@@ -126,116 +118,110 @@ static int az_setvol(struct az_device *dev, int vol)
* *
*/ */
static int az_getsigstr(struct az_device *dev) static int az_getsigstr(struct aztech *az)
{ {
if (inb(io) & 2) /* bit set = no signal present */ int sig = 1;
return 0;
return 1; /* signal present */ mutex_lock(&az->lock);
if (inb(az->io) & 2) /* bit set = no signal present */
sig = 0;
mutex_unlock(&az->lock);
return sig;
} }
static int az_getstereo(struct az_device *dev) static int az_getstereo(struct aztech *az)
{ {
if (inb(io) & 1) /* bit set = mono */ int stereo = 1;
return 0;
return 1; /* stereo */ mutex_lock(&az->lock);
if (inb(az->io) & 1) /* bit set = mono */
stereo = 0;
mutex_unlock(&az->lock);
return stereo;
} }
static int az_setfreq(struct az_device *dev, unsigned long frequency) static int az_setfreq(struct aztech *az, unsigned long frequency)
{ {
int i; int i;
mutex_lock(&az->lock);
az->curfreq = frequency;
frequency += 171200; /* Add 10.7 MHz IF */ frequency += 171200; /* Add 10.7 MHz IF */
frequency /= 800; /* Convert to 50 kHz units */ frequency /= 800; /* Convert to 50 kHz units */
mutex_lock(&lock); send_0_byte(az); /* 0: LSB of frequency */
send_0_byte (dev); /* 0: LSB of frequency */
for (i = 0; i < 13; i++) /* : frequency bits (1-13) */ for (i = 0; i < 13; i++) /* : frequency bits (1-13) */
if (frequency & (1 << i)) if (frequency & (1 << i))
send_1_byte (dev); send_1_byte(az);
else else
send_0_byte (dev); send_0_byte(az);
send_0_byte (dev); /* 14: test bit - always 0 */ send_0_byte(az); /* 14: test bit - always 0 */
send_0_byte (dev); /* 15: test bit - always 0 */ send_0_byte(az); /* 15: test bit - always 0 */
send_0_byte (dev); /* 16: band data 0 - always 0 */ send_0_byte(az); /* 16: band data 0 - always 0 */
if (dev->stereo) /* 17: stereo (1 to enable) */ if (az->stereo) /* 17: stereo (1 to enable) */
send_1_byte (dev); send_1_byte(az);
else else
send_0_byte (dev); send_0_byte(az);
send_1_byte (dev); /* 18: band data 1 - unknown */ send_1_byte(az); /* 18: band data 1 - unknown */
send_0_byte (dev); /* 19: time base - always 0 */ send_0_byte(az); /* 19: time base - always 0 */
send_0_byte (dev); /* 20: spacing (0 = 25 kHz) */ send_0_byte(az); /* 20: spacing (0 = 25 kHz) */
send_1_byte (dev); /* 21: spacing (1 = 25 kHz) */ send_1_byte(az); /* 21: spacing (1 = 25 kHz) */
send_0_byte (dev); /* 22: spacing (0 = 25 kHz) */ send_0_byte(az); /* 22: spacing (0 = 25 kHz) */
send_1_byte (dev); /* 23: AM/FM (FM = 1, always) */ send_1_byte(az); /* 23: AM/FM (FM = 1, always) */
/* latch frequency */ /* latch frequency */
udelay (radio_wait_time); udelay(radio_wait_time);
outb_p(128+64+volconvert(dev->curvol), io); outb_p(128 + 64 + volconvert(az->curvol), az->io);
mutex_unlock(&lock); mutex_unlock(&az->lock);
return 0; return 0;
} }
static int vidioc_querycap (struct file *file, void *priv, static int vidioc_querycap(struct file *file, void *priv,
struct v4l2_capability *v) struct v4l2_capability *v)
{ {
strlcpy(v->driver, "radio-aztech", sizeof (v->driver)); strlcpy(v->driver, "radio-aztech", sizeof(v->driver));
strlcpy(v->card, "Aztech Radio", sizeof (v->card)); strlcpy(v->card, "Aztech 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 az_device *az = video_drvdata(file); struct aztech *az = 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*16000); v->rangelow = 87 * 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(az_getstereo(az)) if (az_getstereo(az))
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=0xFFFF*az_getsigstr(az); v->signal = 0xFFFF * az_getsigstr(az);
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) return v->index ? -EINVAL : 0;
return -EINVAL;
return 0;
}
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)
@@ -246,113 +232,107 @@ 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;
return 0;
} }
static int vidioc_g_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) a->index = 0;
return -EINVAL; strlcpy(a->name, "Radio", sizeof(a->name));
a->capability = V4L2_AUDCAP_STEREO;
return 0; return 0;
} }
static int vidioc_s_frequency (struct file *file, void *priv, static int vidioc_s_audio(struct file *file, void *priv,
struct v4l2_audio *a)
{
return a->index ? -EINVAL : 0;
}
static int vidioc_s_frequency(struct file *file, void *priv,
struct v4l2_frequency *f) struct v4l2_frequency *f)
{ {
struct az_device *az = video_drvdata(file); struct aztech *az = video_drvdata(file);
az->curfreq = f->frequency; az_setfreq(az, f->frequency);
az_setfreq(az, az->curfreq);
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 az_device *az = video_drvdata(file); struct aztech *az = video_drvdata(file);
f->type = V4L2_TUNER_RADIO; f->type = V4L2_TUNER_RADIO;
f->frequency = az->curfreq; f->frequency = az->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, 0xff, 1, 0xff);
sizeof(*qc));
return (0);
}
} }
return -EINVAL; return -EINVAL;
} }
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 az_device *az = video_drvdata(file); struct aztech *az = video_drvdata(file);
switch (ctrl->id) { switch (ctrl->id) {
case V4L2_CID_AUDIO_MUTE: case V4L2_CID_AUDIO_MUTE:
if (az->curvol==0) if (az->curvol == 0)
ctrl->value=1; ctrl->value = 1;
else else
ctrl->value=0; ctrl->value = 0;
return (0); return 0;
case V4L2_CID_AUDIO_VOLUME: case V4L2_CID_AUDIO_VOLUME:
ctrl->value=az->curvol * 6554; ctrl->value = az->curvol * 6554;
return (0); return 0;
} }
return -EINVAL; return -EINVAL;
} }
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 az_device *az = video_drvdata(file); struct aztech *az = 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)
az_setvol(az,0); az_setvol(az, 0);
} else { else
az_setvol(az,az->curvol); az_setvol(az, az->curvol);
} return 0;
return (0); case V4L2_CID_AUDIO_VOLUME:
case V4L2_CID_AUDIO_VOLUME: az_setvol(az, ctrl->value);
az_setvol(az,ctrl->value); return 0;
return (0);
} }
return -EINVAL; return -EINVAL;
} }
static struct az_device aztech_unit; static int aztech_open(struct file *file)
static int aztech_exclusive_open(struct file *file)
{ {
return test_and_set_bit(0, &aztech_unit.in_use) ? -EBUSY : 0; return 0;
} }
static int aztech_exclusive_release(struct file *file) static int aztech_release(struct file *file)
{ {
clear_bit(0, &aztech_unit.in_use);
return 0; return 0;
} }
static const struct v4l2_file_operations aztech_fops = { static const struct v4l2_file_operations aztech_fops = {
.owner = THIS_MODULE, .owner = THIS_MODULE,
.open = aztech_exclusive_open, .open = aztech_open,
.release = aztech_exclusive_release, .release = aztech_release,
.ioctl = video_ioctl2, .ioctl = video_ioctl2,
}; };
@@ -371,57 +351,60 @@ static const struct v4l2_ioctl_ops aztech_ioctl_ops = {
.vidioc_s_ctrl = vidioc_s_ctrl, .vidioc_s_ctrl = vidioc_s_ctrl,
}; };
static struct video_device aztech_radio = {
.name = "Aztech radio",
.fops = &aztech_fops,
.ioctl_ops = &aztech_ioctl_ops,
.release = video_device_release_empty,
};
module_param_named(debug,aztech_radio.debug, int, 0644);
MODULE_PARM_DESC(debug,"activates debug info");
static int __init aztech_init(void) static int __init aztech_init(void)
{ {
if(io==-1) struct aztech *az = &aztech_card;
{ struct v4l2_device *v4l2_dev = &az->v4l2_dev;
printk(KERN_ERR "You must set an I/O address with io=0x???\n"); int res;
strlcpy(v4l2_dev->name, "aztech", sizeof(v4l2_dev->name));
az->io = io;
if (az->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, "aztech")) if (!request_region(az->io, 2, "aztech")) {
{ v4l2_err(v4l2_dev, "port 0x%x already in use\n", az->io);
printk(KERN_ERR "aztech: port 0x%x already in use\n", io);
return -EBUSY; return -EBUSY;
} }
mutex_init(&lock); res = v4l2_device_register(NULL, v4l2_dev);
video_set_drvdata(&aztech_radio, &aztech_unit); if (res < 0) {
release_region(az->io, 2);
v4l2_err(v4l2_dev, "Could not register v4l2_device\n");
return res;
}
if (video_register_device(&aztech_radio, VFL_TYPE_RADIO, radio_nr) < 0) { mutex_init(&az->lock);
release_region(io,2); strlcpy(az->vdev.name, v4l2_dev->name, sizeof(az->vdev.name));
az->vdev.v4l2_dev = v4l2_dev;
az->vdev.fops = &aztech_fops;
az->vdev.ioctl_ops = &aztech_ioctl_ops;
az->vdev.release = video_device_release_empty;
video_set_drvdata(&az->vdev, az);
if (video_register_device(&az->vdev, VFL_TYPE_RADIO, radio_nr) < 0) {
v4l2_device_unregister(v4l2_dev);
release_region(az->io, 2);
return -EINVAL; return -EINVAL;
} }
printk(KERN_INFO "Aztech radio card driver v1.00/19990224 rkroll@exploits.org\n"); v4l2_info(v4l2_dev, "Aztech radio card driver v1.00/19990224 rkroll@exploits.org\n");
/* mute card - prevents noisy bootups */ /* mute card - prevents noisy bootups */
outb (0, io); outb(0, az->io);
return 0; return 0;
} }
MODULE_AUTHOR("Russell Kroll, Quay Lu, Donald Song, Jason Lewis, Scott McGrath, William McGrath"); static void __exit aztech_exit(void)
MODULE_DESCRIPTION("A driver for the Aztech radio card.");
MODULE_LICENSE("GPL");
module_param(io, int, 0);
module_param(radio_nr, int, 0);
MODULE_PARM_DESC(io, "I/O address of the Aztech card (0x350 or 0x358)");
static void __exit aztech_cleanup(void)
{ {
video_unregister_device(&aztech_radio); struct aztech *az = &aztech_card;
release_region(io,2);
video_unregister_device(&az->vdev);
v4l2_device_unregister(&az->v4l2_dev);
release_region(az->io, 2);
} }
module_init(aztech_init); module_init(aztech_init);
module_exit(aztech_cleanup); module_exit(aztech_exit);