diff options
Diffstat (limited to 'dma/nwl.h')
| -rw-r--r-- | dma/nwl.h | 89 |
1 files changed, 34 insertions, 55 deletions
@@ -1,67 +1,46 @@ -#ifndef _PCILIB_NWL_H -#define _PCILIB_NWL_H +#ifndef _PCILIB_DMA_NWL_H +#define _PCILIB_DMA_NWL_H -typedef struct nwl_dma_s nwl_dma_t; -typedef struct pcilib_nwl_engine_description_s pcilib_nwl_engine_description_t; +#include <stdio.h> +#include "../pcilib.h" -#define NWL_DMA_IRQ_SOURCE 0 +#define PCILIB_NWL_MODIFICATION_IPECAMERA 0x100 -#define NWL_XAUI_ENGINE 0 -#define NWL_XRAWDATA_ENGINE 1 -#define NWL_MAX_PACKET_SIZE 4096 //16384 -//#define NWL_GENERATE_DMA_IRQ +pcilib_dma_context_t *dma_nwl_init(pcilib_t *ctx, pcilib_dma_modification_t type, void *arg); +void dma_nwl_free(pcilib_dma_context_t *vctx); -#define PCILIB_NWL_ALIGNMENT 64 // in bytes -#define PCILIB_NWL_DMA_DESCRIPTOR_SIZE 64 // in bytes -#define PCILIB_NWL_DMA_PAGES 256 // 1024 +int dma_nwl_get_status(pcilib_dma_context_t *vctx, pcilib_dma_engine_t dma, pcilib_dma_engine_status_t *status, size_t n_buffers, pcilib_dma_buffer_status_t *buffers); -//#define DEBUG_HARDWARE -//#define DEBUG_NWL +int dma_nwl_enable_irq(pcilib_dma_context_t *vctx, pcilib_irq_type_t type, pcilib_dma_flags_t flags); +int dma_nwl_disable_irq(pcilib_dma_context_t *vctx, pcilib_dma_flags_t flags); +int dma_nwl_acknowledge_irq(pcilib_dma_context_t *ctx, pcilib_irq_type_t irq_type, pcilib_irq_source_t irq_source); -#include "nwl_dma.h" -#include "nwl_irq.h" -#include "nwl_register.h" -#include "nwl_engine.h" -#include "nwl_loopback.h" +int dma_nwl_start(pcilib_dma_context_t *ctx, pcilib_dma_engine_t dma, pcilib_dma_flags_t flags); +int dma_nwl_stop(pcilib_dma_context_t *ctx, pcilib_dma_engine_t dma, pcilib_dma_flags_t flags); -#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) +int dma_nwl_write_fragment(pcilib_dma_context_t *vctx, pcilib_dma_engine_t dma, uintptr_t addr, size_t size, pcilib_dma_flags_t flags, pcilib_timeout_t timeout, void *data, size_t *written); +int dma_nwl_stream_read(pcilib_dma_context_t *vctx, 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 dma_nwl_benchmark(pcilib_dma_context_t *vctx, pcilib_dma_engine_addr_t dma, uintptr_t addr, size_t size, size_t iterations, pcilib_dma_direction_t direction); -struct pcilib_nwl_engine_description_s { - 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 */ -}; - - -struct nwl_dma_s { - struct pcilib_dma_context_s dmactx; - - pcilib_t *pcilib; - - pcilib_dma_modification_t type; - - 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_description_t engines[PCILIB_MAX_DMA_ENGINES + 1]; +#ifdef _PCILIB_DMA_NWL_C +pcilib_dma_api_description_t nwl_dma_api = { + "nwl_dma", + dma_nwl_init, + dma_nwl_free, + dma_nwl_get_status, + dma_nwl_enable_irq, + dma_nwl_disable_irq, + dma_nwl_acknowledge_irq, + dma_nwl_start, + dma_nwl_stop, + dma_nwl_write_fragment, + dma_nwl_stream_read, + dma_nwl_benchmark }; +#else +extern pcilib_dma_api_description_t nwl_dma_api; +#endif -#endif /* _PCILIB_NWL_H */ +#endif /* _PCILIB_DMA_NWL_H */ |