static int32_t sprdfb_dispc_refresh (struct sprdfb_device *dev)
{
FB_PRINT("sprdfb:[%s]\n",__FUNCTION__);
uint32_t i;
if(SPRDFB_PANEL_IF_DPI != dev->panel_if_type){
sprdfb_panel_invalidate(dev->panel);
}
sprdfb_panel_before_refresh(dev);
if(SPRDFB_PANEL_IF_DPI == dev->panel_if_type){
//dispc_write(0x0, DISPC_OSD_CTRL);
//dispc_write(0x0, DISPC_BG_COLOR);
/*dpi register update*/
dispc_set_bits((1<<5), DISPC_DPI_CTRL);
if(is_first_frame){
udelay(30);
/*dpi register update with SW and VSync*/
dispc_clear_bits((1<<4), DISPC_DPI_CTRL);
/* start refresh */
dispc_set_bits((1 << 4), DISPC_CTRL);
is_first_frame = 0;
}else{
for(i=0;i<1000;i++){
if(!(dispc_read(DISPC_INT_RAW) & (0x10))){
udelay(100);
}else{
break;
}
}
if(i >= 1000){
FB_PRINT("sprdfb:[%s] wait dispc update int time out!! (0x%x)\n", __FUNCTION__, dispc_read(DISPC_INT_RAW));
}else{
FB_PRINT("sprdfb:[%s] got dispc update int (0x%x)\n", __FUNCTION__, dispc_read(DISPC_INT_RAW));
}
dispc_set_bits((1<<5), DISPC_INT_CLR);
}
}else{
/* start refresh */
dispc_set_bits((1 << 4), DISPC_CTRL);
for(i=0;i<500;i++){
if(0x1 != (dispc_read(DISPC_INT_RAW) & (1<<0))){
udelay(1000);
}else{
break;
}
}
if(i >= 1000){
FB_PRINT("sprdfb:[%s] wait dispc done int time out!! (0x%x)\n", __FUNCTION__, dispc_read(DISPC_INT_RAW));
}else{
FB_PRINT("sprdfb:[%s] got dispc done int (0x%x)\n", __FUNCTION__, dispc_read(DISPC_INT_RAW));
}
dispc_set_bits((1<<0), DISPC_INT_CLR);
}
sprdfb_panel_after_refresh(dev);
return 0;
}
static irqreturn_t lcdc_isr(int irq, void *data)
{
struct sprdfb_lcdc_context *lcdc_ctx = (struct sprdfb_lcdc_context *)data;
uint32_t reg_val;
struct sprdfb_device *dev = lcdc_ctx->dev;
reg_val = lcdc_read(LCDC_INT_STATUS);
if (reg_val & 1) { /* lcdc done isr */
lcdc_write(1, LCDC_INT_CLR);
lcdc_ctx->vsync_done = 1;
if (lcdc_ctx->vsync_waiter) {
wake_up_interruptible_all(&(lcdc_ctx->vsync_queue));
lcdc_ctx->vsync_waiter = 0;
}
sprdfb_panel_after_refresh(dev);
pr_debug(KERN_INFO "sprdfb: [%s]: Done INT !\n", __FUNCTION__);
}
return IRQ_HANDLED;
}
static irqreturn_t dispc_isr(int irq, void *data)
{
struct sprdfb_dispc_context *dispc_ctx = (struct sprdfb_dispc_context *)data;
uint32_t reg_val;
struct sprdfb_device *dev = dispc_ctx->dev;
bool done = false;
reg_val = dispc_read(DISPC_INT_STATUS);
pr_debug("dispc_isr (0x%x)\n",reg_val );
if(reg_val & 0x04){
printk("Warning: dispc underflow (0x%x)!\n",reg_val);
dispc_write(0x04, DISPC_INT_CLR);
}
if(NULL == dev){
return IRQ_HANDLED;
}
if((reg_val & 0x10) && (SPRDFB_PANEL_IF_DPI == dev->panel_if_type)){/*dispc update done isr*/
#if 0
if(dispc_ctx->is_first_frame){
/*dpi register update with SW and VSync*/
dispc_clear_bits(BIT(4), DISPC_DPI_CTRL);
/* start refresh */
dispc_set_bits((1 << 4), DISPC_CTRL);
dispc_ctx->is_first_frame = false;
}
#endif
dispc_write(0x10, DISPC_INT_CLR);
done = true;
}else if ((reg_val & 0x1) && (SPRDFB_PANEL_IF_DPI != dev->panel_if_type)){ /* dispc done isr */
dispc_write(1, DISPC_INT_CLR);
dispc_ctx->is_first_frame = false;
done = true;
}
if(done){
dispc_ctx->vsync_done = 1;
#ifdef CONFIG_FB_LCD_OVERLAY_SUPPORT
if(SPRD_OVERLAY_STATUS_STARTED == dispc_ctx->overlay_state){
overlay_close(dev);
}
#endif
#ifdef CONFIG_FB_DYNAMIC_CLK_SUPPORT
if(SPRDFB_PANEL_IF_DPI != dev->panel_if_type){
clk_disable(dispc_ctx->clk_dispc);
clk_disable(dispc_ctx->clk_dispc_dpi);
clk_disable(dispc_ctx->clk_dispc_dbi);
dispc_ctx->clk_open = false;
}
#endif
if (dispc_ctx->vsync_waiter) {
wake_up_interruptible_all(&(dispc_ctx->vsync_queue));
dispc_ctx->vsync_waiter = 0;
}
sprdfb_panel_after_refresh(dev);
pr_debug(KERN_INFO "sprdfb: [%s]: Done INT, reg_val = %d !\n", __FUNCTION__, reg_val);
}
return IRQ_HANDLED;
}
