static int mtkfb_vsync_probe(struct platform_device *pdev)
{
struct class_device;
struct class_device *class_dev = NULL;
printk("\n=== MTKFB_VSYNC probe ===\n");
if (alloc_chrdev_region(&mtkfb_vsync_devno, 0, 1, MTKFB_VSYNC_DEVNAME))
{
VSYNC_ERR("can't get device major number...\n");
return -EFAULT;
}
printk("get device major number (%d)\n", mtkfb_vsync_devno);
mtkfb_vsync_cdev = cdev_alloc();
mtkfb_vsync_cdev->owner = THIS_MODULE;
mtkfb_vsync_cdev->ops = &mtkfb_vsync_fops;
cdev_add(mtkfb_vsync_cdev, mtkfb_vsync_devno, 1);
mtkfb_vsync_class = class_create(THIS_MODULE, MTKFB_VSYNC_DEVNAME);
class_dev = (struct class_device *)device_create(mtkfb_vsync_class, NULL, mtkfb_vsync_devno, NULL, MTKFB_VSYNC_DEVNAME);
VSYNC_INF("probe is done\n");
return 0;
}
static void __exit mtkfb_vsync_exit(void)
{
cdev_del(mtkfb_vsync_cdev);
unregister_chrdev_region(mtkfb_vsync_devno, 1);
platform_driver_unregister(&mtkfb_vsync_driver);
platform_device_unregister(&mtkfb_vsync_device);
device_destroy(mtkfb_vsync_class, mtkfb_vsync_devno);
class_destroy(mtkfb_vsync_class);
VSYNC_INF("exit driver...\n");
}
static int __init mtkfb_vsync_init(void)
{
VSYNC_INF("initializeing driver...\n");
if (platform_device_register(&mtkfb_vsync_device)) {
VSYNC_ERR("failed to register device\n");
return -ENODEV;
}
if (platform_driver_register(&mtkfb_vsync_driver)) {
VSYNC_ERR("failed to register driver\n");
platform_device_unregister(&mtkfb_vsync_device);
return -ENODEV;
}
return 0;
}
static int mtkfb_vsync_remove(struct platform_device *pdev)
{
VSYNC_INF("device remove\n");
return 0;
}
static long mtkfb_vsync_unlocked_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
{
int ret = 0;
MTKFB_VSYNC_FUNC();
switch (cmd) {
case MTKFB_VSYNC_IOCTL:
{
MTKFB_VSYNC_LOG("[MTKFB_VSYNC]: enter MTKFB_VSYNC_IOCTL %ld\n", arg);
#if defined(CONFIG_SINGLE_PANEL_OUTPUT)
if (is_hdmi_active()) {
#else
if (arg == MTKFB_VSYNC_SOURCE_HDMI) {
#endif
#if defined(CONFIG_MTK_HDMI_SUPPORT)
if (down_interruptible(&mtkfb_vsync_sem)) {
MTKFB_MSG("[mtkfb_vsync_ioctl] can't get semaphore,%d\n",
__LINE__);
msleep(20);
return ret;
}
hdmi_waitVsync();
up(&mtkfb_vsync_sem);
MTKFB_VSYNC_LOG("[MTKFB_VSYNC]: leave MTKFB_VSYNC_IOCTL, %d\n",
__LINE__);
#else
MTKFB_VSYNC_LOG("[MTKFB_VSYNC]: NS leave MTKFB_VSYNC_IOCTL, %d\n",
__LINE__);
ret = -EFAULT;
#endif
return ret;
}
if (down_interruptible(&mtkfb_vsync_sem)) {
MTKFB_MSG("[mtkfb_vsync_ioctl] can't get semaphore,%d\n", __LINE__);
msleep(20);
return ret;
}
mtkfb_waitVsync();
up(&mtkfb_vsync_sem);
MTKFB_VSYNC_LOG("[MTKFB_VSYNC]: leave MTKFB_VSYNC_IOCTL\n");
}
break;
}
return ret;
}
static const struct file_operations mtkfb_vsync_fops = {
.owner = THIS_MODULE,
.unlocked_ioctl = mtkfb_vsync_unlocked_ioctl,
.open = mtkfb_vsync_open,
.release = mtkfb_vsync_release,
.flush = mtkfb_vsync_flush,
.read = mtkfb_vsync_read,
};
static int mtkfb_vsync_probe(struct platform_device *pdev)
{
struct class_device;
struct class_device *class_dev = NULL;
MTKFB_MSG("\n=== MTKFB_VSYNC probe ===\n");
if (alloc_chrdev_region(&mtkfb_vsync_devno, 0, 1, MTKFB_VSYNC_DEVNAME)) {
VSYNC_ERR("can't get device major number...\n");
return -EFAULT;
}
MTKFB_MSG("get device major number (%d)\n", mtkfb_vsync_devno);
mtkfb_vsync_cdev = cdev_alloc();
mtkfb_vsync_cdev->owner = THIS_MODULE;
mtkfb_vsync_cdev->ops = &mtkfb_vsync_fops;
cdev_add(mtkfb_vsync_cdev, mtkfb_vsync_devno, 1);
mtkfb_vsync_class = class_create(THIS_MODULE, MTKFB_VSYNC_DEVNAME);
class_dev =
(struct class_device *)device_create(mtkfb_vsync_class, NULL, mtkfb_vsync_devno, NULL,
MTKFB_VSYNC_DEVNAME);
VSYNC_INF("probe is done\n");
return 0;
}
static int mtkfb_vsync_remove(struct platform_device *pdev)
{
VSYNC_INF("device remove\n");
return 0;
}