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authorSimon Schwarz <simonschwarzcor@googlemail.com>2011-09-28 05:00:26 +0000
committerAlbert ARIBAUD <albert.u.boot@aribaud.net>2011-10-27 21:56:34 +0200
commit4c4bb19d056da6f32a5bb7cb27045524513d63e0 (patch)
tree216d0772189b1d6aff889bf5c25822360bb83e0e /doc/README.omap3
parent7b646a6d12a67416587630381eb77f16ce6d33e2 (diff)
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omap3: Add interface for omap3 DMA
Adds an interface to use the OMAP3 DMA. Signed-off-by: Simon Schwarz <simonschwarzcor@gmail.com> Signed-off-by: Sandeep Paulraj <s-paulraj@ti.com>
Diffstat (limited to 'doc/README.omap3')
-rw-r--r--doc/README.omap318
1 files changed, 18 insertions, 0 deletions
diff --git a/doc/README.omap3 b/doc/README.omap3
index 1768cdd..2a3f46b 100644
--- a/doc/README.omap3
+++ b/doc/README.omap3
@@ -95,6 +95,7 @@ Interfaces
==========
gpio
+----
To set a bit :
@@ -122,6 +123,23 @@ To read a bit :
else
printf("GPIO N is clear\n");
+dma
+---
+void omap3_dma_init(void)
+ Init the DMA module
+int omap3_dma_get_conf_chan(uint32_t chan, struct dma4_chan *config);
+ Read config of the channel
+int omap3_dma_conf_chan(uint32_t chan, struct dma4_chan *config);
+ Write config to the channel
+int omap3_dma_conf_transfer(uint32_t chan, uint32_t *src, uint32_t *dst,
+ uint32_t sze)
+ Config source, destination and size of a transfer
+int omap3_dma_wait_for_transfer(uint32_t chan)
+ Wait for a transfer to end - this hast to be called before a channel
+ or the data the channel transferd are used.
+int omap3_dma_get_revision(uint32_t *minor, uint32_t *major)
+ Read silicon Revision of the DMA module
+
Acknowledgements
================