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imx233: add lcdif underflow irq support

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Change-Id: Ie3fe223ff40abff38bb9b09f398eb5411fa0be4c
This commit is contained in:
Amaury Pouly 2014-03-08 18:19:43 +01:00
parent 61d0583384
commit b0940b1dd3
2 changed files with 23 additions and 0 deletions
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21
firmware/target/arm/imx233/lcdif-imx233.c
View file

@ -25,6 +25,7 @@
#if IMX233_SUBTARGET >= 3700
static lcdif_irq_cb_t g_cur_frame_cb = NULL;
static lcdif_irq_cb_t g_vsync_edge_cb = NULL;
static lcdif_irq_cb_t g_underflow_cb = NULL;
#endif
/* for some crazy reason, all "non-dma" interrupts are routed to the ERROR irq */
@ -43,6 +44,12 @@ void INT_LCDIF_ERROR(void)
g_vsync_edge_cb();
BF_CLR(LCDIF_CTRL1, VSYNC_EDGE_IRQ);
}
if(BF_RD(LCDIF_CTRL1, UNDERFLOW_IRQ))
{
if(g_underflow_cb)
g_underflow_cb();
BF_CLR(LCDIF_CTRL1, UNDERFLOW_IRQ);
}
}
#endif
@ -341,6 +348,20 @@ void imx233_lcdif_set_vsync_edge_cb(lcdif_irq_cb_t cb)
{
g_vsync_edge_cb = cb;
}
void imx233_lcdif_enable_underflow_irq(bool en)
{
if(en)
BF_SET(LCDIF_CTRL1, UNDERFLOW_IRQ_EN);
else
BF_CLR(LCDIF_CTRL1, UNDERFLOW_IRQ_EN);
BF_CLR(LCDIF_CTRL1, UNDERFLOW_IRQ);
}
void imx233_lcdif_set_underflow_cb(lcdif_irq_cb_t cb)
{
g_underflow_cb = cb;
}
#endif
#if IMX233_SUBTARGET >= 3780

2
firmware/target/arm/imx233/lcdif-imx233.h
View file

@ -65,6 +65,8 @@ void imx233_lcdif_enable_frame_done_irq(bool en);
void imx233_lcdif_set_frame_done_cb(lcdif_irq_cb_t cb);
void imx233_lcdif_enable_vsync_edge_irq(bool en);
void imx233_lcdif_set_vsync_edge_cb(lcdif_irq_cb_t cb);
void imx233_lcdif_enable_underflow_irq(bool en);
void imx233_lcdif_set_underflow_cb(lcdif_irq_cb_t cb);
void imx233_lcdif_enable_sync_signals(bool en);
#endif