North West Logick DMA implementation

1 files changed, 18 insertions, 0 deletions

diff --git a/dma.h b/dma.h
new file mode 100644
index 0000000..8025089
--- /dev/null
+++ b/dma.h
@@ -0,0 +1,18 @@
+#ifndef _PCILIB_DMA_H
+#define _PCILIB_DMA_H
+
+#define PCILIB_DMA_BUFFER_INVALID ((size_t)-1)
+
+struct pcilib_dma_api_description_s {
+    pcilib_dma_context_t *(*init)(pcilib_t *ctx);
+    void (*free)(pcilib_dma_context_t *ctx);
+
+    size_t (*push)(pcilib_dma_context_t *ctx, pcilib_dma_t dma, uintptr_t addr, size_t size, pcilib_dma_flags_t flags, size_t timeout, void *buf);
+    size_t (*stream)(pcilib_dma_context_t *ctx, pcilib_dma_t dma, uintptr_t addr, size_t size, pcilib_dma_flags_t flags, size_t timeout, pcilib_dma_callback_t cb, void *cbattr);
+
+    double (*benchmark)(pcilib_dma_context_t *ctx, pcilib_dma_addr_t dma, uintptr_t addr, size_t size, size_t iterations, pcilib_dma_direction_t direction);
+};
+
+int pcilib_set_dma_engine_description(pcilib_t *ctx, pcilib_dma_t engine, pcilib_dma_engine_description_t *desc);
+
+#endif /* _PCILIB_DMA_H */