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  • Committer: Suren A. Chilingaryan
  • Date: 2011-10-26 05:12:31 UTC
  • Revision ID: csa@dside.dyndns.org-20111026051231-5ntkozz31hvjzvb5
Improvements of DMA engine

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Lines of Context:
dma.h
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typedef uint32_t pcilib_dma_modification_t;
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typedef struct {
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    int started;
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    size_t ring_size, buffer_size;
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    pcilib_dma_context_t *(*init)(pcilib_t *ctx, pcilib_dma_modification_t type, void *arg);
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    void (*free)(pcilib_dma_context_t *ctx);
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    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);
 
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    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);
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    int (*enable_irq)(pcilib_dma_context_t *ctx, pcilib_irq_type_t irq_type, pcilib_dma_flags_t flags);
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    int (*disable_irq)(pcilib_dma_context_t *ctx, pcilib_dma_flags_t flags);
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    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);
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};
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struct pcilib_dma_context_s {
 
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    int ignore_eop;
 
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};
 
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int pcilib_set_dma_engine_description(pcilib_t *ctx, pcilib_dma_engine_t engine, pcilib_dma_engine_description_t *desc);
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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);
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