Changeset 9991c47 in mainline for uspace/lib/c/include/device/hw_res.h

Timestamp:

2011-11-13T22:18:58Z (12 years ago)

Author:

Jan Vesely <jano.vesely@…>

Branches:

lfn, master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export

Children:

8a5962f

Parents:

e6def65

Message:

libc, libdrv: Add support for DMA channel handling.

File:

• uspace/lib/c/include/device/hw_res.h (modified) (2 diffs)

uspace/lib/c/include/device/hw_res.h

@@ -43 +43 @@
 typedef enum {
         HW_RES_GET_RESOURCE_LIST = 0,
-        HW_RES_ENABLE_INTERRUPT
+        HW_RES_ENABLE_INTERRUPT,
+        HW_RES_DMA_CHANNEL_SETUP,
 } hw_res_method_t;
 
@@ -105 +106 @@
 extern bool hw_res_enable_interrupt(async_sess_t *);
 
+#define DMA_MODE_WRITE (1 << 2)
+#define DMA_MODE_READ (1 << 3)
+#define DMA_MODE_AUTO (1 << 4)
+#define DMA_MODE_DOWN (1 << 5)
+#define DMA_MODE_SINGLE (1 << 6)
+#define DMA_MODE_BLOCK (1 << 7)
+#define DMA_MODE_ON_DEMAND (0)
+
+extern int hw_res_dma_channel_setup(async_sess_t *,
+    unsigned, uint32_t, uint16_t, uint8_t);
+
 #endif