diff options
Diffstat (limited to 'dma.h')
| -rw-r--r-- | dma.h | 17 |
1 files changed, 17 insertions, 0 deletions
@@ -7,9 +7,25 @@ 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 { 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_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); @@ -25,5 +41,6 @@ struct pcilib_dma_api_description_s { }; 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 */ |