Here is the updated patch.
From: Santosh Shilimkar <[EMAIL PROTECTED]>
Added helper APIs in the arch/arm/plat-omap/dma.c.Declaration was already
present in arch/arm/plat-omap/include/mach/dma.h.
APIs are 1) omap_set_dma_src_endian_type
2) omap_set_dma_dst_endian_type
3) omap_get_dma_index
Signed-off-by: Santosh Shilimkar <[EMAIL PROTECTED]>
---
--- omapkernel.orig/arch/arm/plat-omap/dma.c 2008-11-25 20:02:37.000000000
+0530
+++ omapkernel/arch/arm/plat-omap/dma.c 2008-11-25 20:10:07.505112358 +0530
@@ -594,6 +594,24 @@ void omap_set_dma_dest_burst_mode(int lc
}
EXPORT_SYMBOL(omap_set_dma_dest_burst_mode);
+void omap_set_dma_src_endian_type(int lch, enum end_type etype)
+{
+ u32 csdp;
+ csdp = dma_read(CSDP(lch));
+ csdp |= ((etype & 0x1) << 21);
+ dma_write(csdp, CSDP(lch));
+}
+EXPORT_SYMBOL(omap_set_dma_src_endian_type);
+
+void omap_set_dma_dst_endian_type(int lch, enum end_type etype)
+{
+ u32 csdp;
+ csdp = dma_read(CSDP(lch));
+ csdp |= ((etype & 0x1) << 19);
+ dma_write(csdp, CSDP(lch));
+}
+EXPORT_SYMBOL(omap_set_dma_dst_endian_type);
+
static inline void omap_enable_channel_irq(int lch)
{
u32 status;
@@ -1017,6 +1035,26 @@ int omap_set_dma_callback(int lch,
}
EXPORT_SYMBOL(omap_set_dma_callback);
+/**
+ * @brief omap_get_dma_index : Get the element and frame number
+ * of the current logical channel
+ *
+ * @param lch : Logical channel number
+ * @param ei : Element index
+ * @param fi : Frame index
+ *
+ * @return : Success
+ */
+int omap_get_dma_index(int lch, int *ei, int *fi)
+{
+ if ((!ei) || (!fi))
+ return -EPERM;
+ *ei = dma_read(CCEN(lch));
+ *fi = dma_read(CCFN(lch));
+ return 0;
+}
+EXPORT_SYMBOL(omap_get_dma_index);
+
/*
* Returns current physical source address for the given DMA channel.
* If the channel is running the caller must disable interrupts prior calling
Regards
Santosh Shilimkar--
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