static int s3c_jpeg_open(struct inode *inode, struct file *file)
{
sspc100_jpg_ctx *jpg_reg_ctx;
DWORD ret;
ret = s5pv210_pd_enable("jpeg_pd");
if (ret < 0) {
jpg_err("failed to enable jpeg power domain\n");
return FALSE;
}
/* clock enable */
clk_enable(s3c_jpeg_clk);
jpg_dbg("JPG_open \r\n");
jpg_reg_ctx = (sspc100_jpg_ctx *)mem_alloc(sizeof(sspc100_jpg_ctx));
memset(jpg_reg_ctx, 0x00, sizeof(sspc100_jpg_ctx));
ret = lock_jpg_mutex();
if (!ret) {
jpg_err("JPG Mutex Lock Fail\r\n");
unlock_jpg_mutex();
kfree(jpg_reg_ctx);
return FALSE;
}
if (instanceNo > MAX_INSTANCE_NUM) {
jpg_err("Instance Number error-JPEG is running, \
instance number is %d\n", instanceNo);
unlock_jpg_mutex();
kfree(jpg_reg_ctx);
return FALSE;
}
static int s3c_jpeg_open(struct inode *inode, struct file *file)
{
struct s5pc110_jpg_ctx *jpg_reg_ctx;
unsigned long ret;
jpg_dbg("JPG_open \r\n");
jpg_reg_ctx = (struct s5pc110_jpg_ctx *)
mem_alloc(sizeof(struct s5pc110_jpg_ctx));
memset(jpg_reg_ctx, 0x00, sizeof(struct s5pc110_jpg_ctx));
ret = lock_jpg_mutex();
if (!ret) {
jpg_err("JPG Mutex Lock Fail\r\n");
unlock_jpg_mutex();
kfree(jpg_reg_ctx);
return FALSE;
}
if (instanceNo > MAX_INSTANCE_NUM) {
jpg_err("Instance Number error-JPEG is running, \
instance number is %d\n", instanceNo);
unlock_jpg_mutex();
kfree(jpg_reg_ctx);
return FALSE;
}
irqreturn_t s3c_jpeg_irq(int irq, void *dev_id, struct pt_regs *regs)
{
unsigned int int_status;
unsigned int status;
jpg_dbg("=====enter s3c_jpeg_irq===== \r\n");
int_status = readl(s3c_jpeg_base + S3C_JPEG_INTST_REG);
do {
status = readl(s3c_jpeg_base + S3C_JPEG_OPR_REG);
} while (status);
writel(S3C_JPEG_COM_INT_RELEASE, s3c_jpeg_base + S3C_JPEG_COM_REG);
jpg_dbg("int_status : 0x%08x status : 0x%08x\n", int_status, status);
if (int_status) {
switch (int_status) {
case 0x40:
jpg_irq_reason = OK_ENC_OR_DEC;
break;
case 0x20:
jpg_irq_reason = ERR_ENC_OR_DEC;
break;
default:
jpg_irq_reason = ERR_UNKNOWN;
}
wake_up_interruptible(&wait_queue_jpeg);
} else {
jpg_irq_reason = ERR_UNKNOWN;
wake_up_interruptible(&wait_queue_jpeg);
}
return IRQ_HANDLED;
}