diff options
Diffstat (limited to 'dma.h')
-rw-r--r-- | dma.h | 52 |
1 files changed, 0 insertions, 52 deletions
@@ -1,52 +0,0 @@ -#ifndef _PCILIB_DMA_H -#define _PCILIB_DMA_H - -#define PCILIB_DMA_BUFFER_INVALID ((size_t)-1) -#define PCILIB_DMA_MODIFICATION_DEFAULT 0 /**< first 0x100 are reserved */ - -typedef uint32_t pcilib_dma_modification_t; - -typedef struct { - int started; - size_t ring_size, buffer_size; - size_t ring_head, ring_tail; -} pcilib_dma_engine_status_t; - -typedef struct { - int used; - int error; - int first; - int last; - size_t size; -} pcilib_dma_buffer_status_t; - -struct pcilib_dma_api_description_s { - const char *title; - - pcilib_dma_context_t *(*init)(pcilib_t *ctx, pcilib_dma_modification_t type, void *arg); - void (*free)(pcilib_dma_context_t *ctx); - - int (*status)(pcilib_dma_context_t *ctx, pcilib_dma_engine_t dma, pcilib_dma_engine_status_t *status, size_t n_buffers, pcilib_dma_buffer_status_t *buffers); - - int (*enable_irq)(pcilib_dma_context_t *ctx, pcilib_irq_type_t irq_type, pcilib_dma_flags_t flags); - int (*disable_irq)(pcilib_dma_context_t *ctx, pcilib_dma_flags_t flags); - int (*acknowledge_irq)(pcilib_dma_context_t *ctx, pcilib_irq_type_t irq_type, pcilib_irq_source_t irq_source); - - int (*start_dma)(pcilib_dma_context_t *ctx, pcilib_dma_engine_t dma, pcilib_dma_flags_t flags); - int (*stop_dma)(pcilib_dma_context_t *ctx, pcilib_dma_engine_t dma, pcilib_dma_flags_t flags); - - int (*push)(pcilib_dma_context_t *ctx, pcilib_dma_engine_t dma, uintptr_t addr, size_t size, pcilib_dma_flags_t flags, pcilib_timeout_t timeout, void *buf, size_t *written); - int (*stream)(pcilib_dma_context_t *ctx, pcilib_dma_engine_t dma, uintptr_t addr, size_t size, pcilib_dma_flags_t flags, pcilib_timeout_t timeout, pcilib_dma_callback_t cb, void *cbattr); - - double (*benchmark)(pcilib_dma_context_t *ctx, pcilib_dma_engine_addr_t dma, uintptr_t addr, size_t size, size_t iterations, pcilib_dma_direction_t direction); -}; - -struct pcilib_dma_context_s { - int ignore_eop; -}; - - -int pcilib_set_dma_engine_description(pcilib_t *ctx, pcilib_dma_engine_t engine, pcilib_dma_engine_description_t *desc); -int pcilib_get_dma_status(pcilib_t *ctx, pcilib_dma_engine_t dma, pcilib_dma_engine_status_t *status, size_t n_buffers, pcilib_dma_buffer_status_t *buffers); - -#endif /* _PCILIB_DMA_H */ |