static int jpeg_probe(struct platform_device *pdev)
{
struct class_device;
int ret;
struct class_device *class_dev = NULL;
printk("jpeg driver probe\n");
ret = alloc_chrdev_region(&jpeg_devno, 0, 1, JPEG_DEVNAME);
if(ret)
{
printk("Error: Can't Get Major number for JPEG Device\n");
}
else
{
printk("Get JPEG Device Major number (%d)\n", jpeg_devno);
}
jpeg_cdev = cdev_alloc();
jpeg_cdev->owner = THIS_MODULE;
jpeg_cdev->ops = &jpeg_fops;
ret = cdev_add(jpeg_cdev, jpeg_devno, 1);
jpeg_class = class_create(THIS_MODULE, JPEG_DEVNAME);
class_dev = (struct class_device *)device_create(jpeg_class, NULL, jpeg_devno, NULL, JPEG_DEVNAME);
spin_lock_init(&jpeg_dec_lock);
spin_lock_init(&jpeg_enc_lock);
// initial codec, register codec ISR
dec_status = 0;
enc_status = 0;
_jpeg_dec_int_status = 0;
_jpeg_enc_int_status = 0;
init_waitqueue_head(&dec_wait_queue);
init_waitqueue_head(&enc_wait_queue);
mt6573_irq_set_sens(MT6573_JPG_CODEC_IRQ_LINE, MT65xx_LEVEL_SENSITIVE);
mt6573_irq_unmask(MT6573_JPG_CODEC_IRQ_LINE);
enable_irq(MT6573_JPG_CODEC_IRQ_LINE);
if(request_irq(MT6573_JPG_CODEC_IRQ_LINE, (irq_handler_t)jpeg_drv_isr, 0, "jpeg_driver" , NULL))
{
printk("JPEG Codec Driver request irq failed\n");
}
printk("JPEG Probe Done\n");
NOT_REFERENCED(class_dev);
return 0;
}
static __tcmfunc irqreturn_t _TVC_InterruptHandler(int irq, void *dev_id)
{
TVC_REG_IRQ_STS status = TVC_REG->IRQ_STATUS;
mt6573_irq_mask(MT6573_TVC_IRQ_LINE);
//printk("_TVC_InterruptHandler, status: %x\n", status);
if (1 == status.IRQ2) {
status.IRQ2 = 0;
printk("[WARN][TVC] Overrun !!\n");
}
if (1 == status.IRQ0) {
status.IRQ0 = 0;
//printk("wake up tvc_checkline!!\n");
wake_up_interruptible(&_tvcContext.tvc_checkline);
}
OUTREG32(&TVC_REG->IRQ_STATUS, AS_UINT32(&status));
mt6573_irq_unmask(MT6573_TVC_IRQ_LINE);
return IRQ_HANDLED;
}
//static irqreturn_t jpeg_drv_isr(int irq, void *dev_id)
static __tcmfunc irqreturn_t jpeg_drv_isr(int irq, void *dev_id)
{
JPEG_MSG("JPEG Codec Interrupt\n");
//jpeg_reg_dump();
if(irq == MT6573_JPG_CODEC_IRQ_LINE)
{
mt6573_irq_mask(MT6573_JPG_CODEC_IRQ_LINE);
if(jpeg_isr_dec_lisr() == 0)
{
wake_up_interruptible(&dec_wait_queue);
}
if(jpeg_isr_enc_lisr() == 0)
{
wake_up_interruptible(&enc_wait_queue);
}
mt6573_irq_unmask(MT6573_JPG_CODEC_IRQ_LINE);
}
return IRQ_HANDLED;
}
