#include <linux/init.h> /* Initdata */
#include <linux/ioport.h> /* request_region */
#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 <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 <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 = 0xff,
- .step = 1,
- .default_value = 0xff,
- .type = V4L2_CTRL_TYPE_INTEGER,
- }
-};
+MODULE_AUTHOR("Russell Kroll, Quay Lu, Donald Song, Jason Lewis, Scott McGrath, William McGrath");
+MODULE_DESCRIPTION("A driver for the Aztech radio card.");
+MODULE_LICENSE("GPL");
/* acceptable ports: 0x350 (JP3 shorted), 0x358 (JP3 open) */
static int io = CONFIG_RADIO_AZTECH_PORT;
static int radio_nr = -1;
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;
unsigned long curfreq;
int stereo;
+ struct mutex lock;
};
+static struct aztech aztech_card;
+
static int volconvert(int level)
{
- level>>=14; /* Map 16bits down to 2 bit */
- level&=3;
+ level >>= 14; /* Map 16bits down to 2 bit */
+ level &= 3;
/* convert to card-friendly values */
- switch (level)
- {
- case 0:
- return 0;
- case 1:
- return 1;
- case 2:
- return 4;
- case 3:
- return 5;
+ switch (level) {
+ case 0:
+ return 0;
+ case 1:
+ return 1;
+ case 2:
+ return 4;
+ case 3:
+ return 5;
}
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);
- outb_p(2+volconvert(dev->curvol), io);
- outb_p(64+2+volconvert(dev->curvol), io);
+ outb_p(2 + volconvert(az->curvol), az->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);
- outb_p(128+2+volconvert(dev->curvol), io);
- outb_p(128+64+2+volconvert(dev->curvol), io);
+ outb_p(128 + 2 + volconvert(az->curvol), az->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);
- outb (volconvert(vol), io);
- mutex_unlock(&lock);
+ mutex_lock(&az->lock);
+ outb(volconvert(vol), az->io);
+ mutex_unlock(&az->lock);
return 0;
}
*
*/
-static int az_getsigstr(struct az_device *dev)
+static int az_getsigstr(struct aztech *az)
{
- if (inb(io) & 2) /* bit set = no signal present */
- return 0;
- return 1; /* signal present */
+ int sig = 1;
+
+ 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 */
- return 0;
- return 1; /* stereo */
+ int stereo = 1;
+
+ 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;
+ mutex_lock(&az->lock);
+
+ az->curfreq = frequency;
frequency += 171200; /* Add 10.7 MHz IF */
frequency /= 800; /* Convert to 50 kHz units */
- mutex_lock(&lock);
-
- send_0_byte (dev); /* 0: LSB of frequency */
+ send_0_byte(az); /* 0: LSB of frequency */
for (i = 0; i < 13; i++) /* : frequency bits (1-13) */
if (frequency & (1 << i))
- send_1_byte (dev);
+ send_1_byte(az);
else
- send_0_byte (dev);
+ send_0_byte(az);
- send_0_byte (dev); /* 14: test bit - always 0 */
- send_0_byte (dev); /* 15: test bit - always 0 */
- send_0_byte (dev); /* 16: band data 0 - always 0 */
- if (dev->stereo) /* 17: stereo (1 to enable) */
- send_1_byte (dev);
+ send_0_byte(az); /* 14: test bit - always 0 */
+ send_0_byte(az); /* 15: test bit - always 0 */
+ send_0_byte(az); /* 16: band data 0 - always 0 */
+ if (az->stereo) /* 17: stereo (1 to enable) */
+ send_1_byte(az);
else
- send_0_byte (dev);
+ send_0_byte(az);
- send_1_byte (dev); /* 18: band data 1 - unknown */
- send_0_byte (dev); /* 19: time base - always 0 */
- send_0_byte (dev); /* 20: spacing (0 = 25 kHz) */
- send_1_byte (dev); /* 21: spacing (1 = 25 kHz) */
- send_0_byte (dev); /* 22: spacing (0 = 25 kHz) */
- send_1_byte (dev); /* 23: AM/FM (FM = 1, always) */
+ send_1_byte(az); /* 18: band data 1 - unknown */
+ send_0_byte(az); /* 19: time base - always 0 */
+ send_0_byte(az); /* 20: spacing (0 = 25 kHz) */
+ send_1_byte(az); /* 21: spacing (1 = 25 kHz) */
+ send_0_byte(az); /* 22: spacing (0 = 25 kHz) */
+ send_1_byte(az); /* 23: AM/FM (FM = 1, always) */
/* latch frequency */
- udelay (radio_wait_time);
- outb_p(128+64+volconvert(dev->curvol), io);
+ udelay(radio_wait_time);
+ outb_p(128 + 64 + volconvert(az->curvol), az->io);
- mutex_unlock(&lock);
+ mutex_unlock(&az->lock);
return 0;
}
-static int vidioc_querycap (struct file *file, void *priv,
+static int vidioc_querycap(struct file *file, void *priv,
struct v4l2_capability *v)
{
- strlcpy(v->driver, "radio-aztech", sizeof (v->driver));
- strlcpy(v->card, "Aztech Radio", sizeof (v->card));
- sprintf(v->bus_info,"ISA");
+ strlcpy(v->driver, "radio-aztech", sizeof(v->driver));
+ strlcpy(v->card, "Aztech Radio", sizeof(v->card));
+ 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,
+static int vidioc_g_tuner(struct file *file, void *priv,
struct v4l2_tuner *v)
{
- struct az_device *az = video_drvdata(file);
+ struct aztech *az = 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*16000);
- v->rangehigh=(108*16000);
- v->rxsubchans =V4L2_TUNER_SUB_MONO|V4L2_TUNER_SUB_STEREO;
- v->capability=V4L2_TUNER_CAP_LOW;
- if(az_getstereo(az))
+ v->rangelow = 87 * 16000;
+ v->rangehigh = 108 * 16000;
+ v->rxsubchans = V4L2_TUNER_SUB_MONO | V4L2_TUNER_SUB_STEREO;
+ v->capability = V4L2_TUNER_CAP_LOW;
+ if (az_getstereo(az))
v->audmode = V4L2_TUNER_MODE_STEREO;
else
v->audmode = V4L2_TUNER_MODE_MONO;
- v->signal=0xFFFF*az_getsigstr(az);
+ v->signal = 0xFFFF * az_getsigstr(az);
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)
{
- if (v->index > 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;
+ return v->index ? -EINVAL : 0;
}
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 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 az_device *az = video_drvdata(file);
+ struct aztech *az = video_drvdata(file);
- az->curfreq = f->frequency;
- az_setfreq(az, az->curfreq);
+ az_setfreq(az, f->frequency);
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 az_device *az = video_drvdata(file);
+ struct aztech *az = video_drvdata(file);
f->type = V4L2_TUNER_RADIO;
f->frequency = az->curfreq;
-
return 0;
}
-static int vidioc_queryctrl (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, 0xff, 1, 0xff);
}
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 az_device *az = video_drvdata(file);
+ struct aztech *az = video_drvdata(file);
switch (ctrl->id) {
- case V4L2_CID_AUDIO_MUTE:
- if (az->curvol==0)
- ctrl->value=1;
- else
- ctrl->value=0;
- return (0);
- case V4L2_CID_AUDIO_VOLUME:
- ctrl->value=az->curvol * 6554;
- return (0);
+ case V4L2_CID_AUDIO_MUTE:
+ if (az->curvol == 0)
+ ctrl->value = 1;
+ else
+ ctrl->value = 0;
+ return 0;
+ case V4L2_CID_AUDIO_VOLUME:
+ ctrl->value = az->curvol * 6554;
+ return 0;
}
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 az_device *az = video_drvdata(file);
+ struct aztech *az = video_drvdata(file);
switch (ctrl->id) {
- case V4L2_CID_AUDIO_MUTE:
- if (ctrl->value) {
- az_setvol(az,0);
- } else {
- az_setvol(az,az->curvol);
- }
- return (0);
- case V4L2_CID_AUDIO_VOLUME:
- az_setvol(az,ctrl->value);
- return (0);
+ case V4L2_CID_AUDIO_MUTE:
+ if (ctrl->value)
+ az_setvol(az, 0);
+ else
+ az_setvol(az, az->curvol);
+ return 0;
+ case V4L2_CID_AUDIO_VOLUME:
+ az_setvol(az, ctrl->value);
+ return 0;
}
return -EINVAL;
}
-static struct az_device aztech_unit;
-
-static int aztech_exclusive_open(struct file *file)
+static int aztech_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;
}
static const struct v4l2_file_operations aztech_fops = {
.owner = THIS_MODULE,
- .open = aztech_exclusive_open,
- .release = aztech_exclusive_release,
+ .open = aztech_open,
+ .release = aztech_release,
.ioctl = video_ioctl2,
};
.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)
{
- if(io==-1)
- {
- printk(KERN_ERR "You must set an I/O address with io=0x???\n");
+ struct aztech *az = &aztech_card;
+ struct v4l2_device *v4l2_dev = &az->v4l2_dev;
+ 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;
}
- if (!request_region(io, 2, "aztech"))
- {
- printk(KERN_ERR "aztech: port 0x%x already in use\n", io);
+ if (!request_region(az->io, 2, "aztech")) {
+ v4l2_err(v4l2_dev, "port 0x%x already in use\n", az->io);
return -EBUSY;
}
- mutex_init(&lock);
- video_set_drvdata(&aztech_radio, &aztech_unit);
+ res = v4l2_device_register(NULL, v4l2_dev);
+ 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) {
- release_region(io,2);
+ mutex_init(&az->lock);
+ 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;
}
- 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 */
- outb (0, io);
+ outb(0, az->io);
return 0;
}
-MODULE_AUTHOR("Russell Kroll, Quay Lu, Donald Song, Jason Lewis, Scott McGrath, William McGrath");
-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)
+static void __exit aztech_exit(void)
{
- video_unregister_device(&aztech_radio);
- release_region(io,2);
+ struct aztech *az = &aztech_card;
+
+ video_unregister_device(&az->vdev);
+ v4l2_device_unregister(&az->v4l2_dev);
+ release_region(az->io, 2);
}
module_init(aztech_init);
-module_exit(aztech_cleanup);
+module_exit(aztech_exit);
projects / linux-2.6-omap-h63xx.git / commitdiff