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authorAmaury Pouly <amaury.pouly@gmail.com>2014-03-08 18:19:43 +0100
committerAmaury Pouly <amaury.pouly@gmail.com>2014-03-08 18:51:53 +0100
commitb0940b1dd388a3d7b8d50da329b84e8f65717b9a (patch)
tree7c582e811c1216b7eab95f8500991ef836726066
parent61d0583384b81de28498544ea3ec2e5c8eba42be (diff)
downloadrockbox-b0940b1dd388a3d7b8d50da329b84e8f65717b9a.tar.gz
rockbox-b0940b1dd388a3d7b8d50da329b84e8f65717b9a.zip
imx233: add lcdif underflow irq support
Change-Id: Ie3fe223ff40abff38bb9b09f398eb5411fa0be4c
-rw-r--r--firmware/target/arm/imx233/lcdif-imx233.c21
-rw-r--r--firmware/target/arm/imx233/lcdif-imx233.h2
2 files changed, 23 insertions, 0 deletions
diff --git a/firmware/target/arm/imx233/lcdif-imx233.c b/firmware/target/arm/imx233/lcdif-imx233.c
index ea4fcf8a63..01c7ec71e4 100644
--- a/firmware/target/arm/imx233/lcdif-imx233.c
+++ b/firmware/target/arm/imx233/lcdif-imx233.c
@@ -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
diff --git a/firmware/target/arm/imx233/lcdif-imx233.h b/firmware/target/arm/imx233/lcdif-imx233.h
index 3554c86e06..b45830f3d3 100644
--- a/firmware/target/arm/imx233/lcdif-imx233.h
+++ b/firmware/target/arm/imx233/lcdif-imx233.h
@@ -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