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- #ifndef _PCILIB_DMA_NWL_PRIVATE_H
- #define _PCILIB_DMA_NWL_PRIVATE_H
- typedef struct nwl_dma_s nwl_dma_t;
- typedef struct pcilib_nwl_engine_context_s pcilib_nwl_engine_context_t;
- #define NWL_DMA_IRQ_SOURCE 0
- #define NWL_XAUI_ENGINE 0
- #define NWL_XRAWDATA_ENGINE 1
- #define NWL_MAX_PACKET_SIZE 4096 //16384
- //#define NWL_GENERATE_DMA_IRQ
- #define PCILIB_NWL_ALIGNMENT 64 // in bytes
- #define PCILIB_NWL_DMA_DESCRIPTOR_SIZE 64 // in bytes
- #define PCILIB_NWL_DMA_PAGES 256 // 1024
- #define PCILIB_NWL_REGISTER_TIMEOUT 10000 /**< us */
- #include "datacpy.h"
- #include "nwl.h"
- #include "nwl_irq.h"
- #include "nwl_engine.h"
- #include "nwl_loopback.h"
- #define nwl_read_register(var, ctx, base, reg) pcilib_datacpy(&var, base + reg, 4, 1, ctx->dma_bank->raw_endianess)
- #define nwl_write_register(var, ctx, base, reg) pcilib_datacpy(base + reg, &var, 4, 1, ctx->dma_bank->raw_endianess)
- struct pcilib_nwl_engine_context_s {
- const pcilib_dma_engine_description_t *desc;
- char *base_addr;
- size_t ring_size, page_size;
- size_t head, tail;
- pcilib_kmem_handle_t *ring;
- pcilib_kmem_handle_t *pages;
-
- int started; /**< indicates that DMA buffers are initialized and reading is allowed */
- int writting; /**< indicates that we are in middle of writting packet */
- int reused; /**< indicates that DMA was found intialized, buffers were reused, and no additional initialization is needed */
- int preserve; /**< indicates that DMA should not be stopped during clean-up */
- };
- typedef enum {
- NWL_MODIFICATION_DEFAULT,
- NWL_MODIFICATION_IPECAMERA
- } nwl_modification_t;
- struct nwl_dma_s {
- pcilib_dma_context_t dmactx;
- nwl_modification_t type;
- int ignore_eop; /**< always set end-of-packet */
- const pcilib_register_bank_description_t *dma_bank;
- char *base_addr;
- pcilib_irq_type_t irq_enabled; /**< indicates that IRQs are enabled */
- pcilib_irq_type_t irq_preserve; /**< indicates that IRQs should not be disabled during clean-up */
- int started; /**< indicates that DMA subsystem is initialized and DMA engine can start */
- int irq_started; /**< indicates that IRQ subsystem is initialized (detecting which types should be preserverd) */
- int loopback_started; /**< indicates that benchmarking subsystem is initialized */
- // pcilib_dma_engine_t n_engines;
- pcilib_nwl_engine_context_t engines[PCILIB_MAX_DMA_ENGINES + 1];
- };
- int nwl_add_registers(nwl_dma_t *ctx);
- #endif /* _PCILIB_DMA_NWL_PRIVATE_H */
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