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-rw-r--r--dma/nwl.h89
1 files changed, 34 insertions, 55 deletions
diff --git a/dma/nwl.h b/dma/nwl.h
index d295e23..21df94c 100644
--- a/dma/nwl.h
+++ b/dma/nwl.h
@@ -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 */