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authorSuren A. Chilingaryan <csa@suren.me>2015-11-17 06:45:55 +0100
committerSuren A. Chilingaryan <csa@suren.me>2015-11-17 06:45:55 +0100
commit2455a677448e0e0c17d7193bf405b734b758811b (patch)
tree52ac392aec2e7869ef1e003dde4302407f9e0a66 /dma/ipe.h
parent9efee359b26d7a54464ff20f38f319216fb248af (diff)
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IPEDMA Update
Diffstat (limited to 'dma/ipe.h')
-rw-r--r--dma/ipe.h17
1 files changed, 16 insertions, 1 deletions
diff --git a/dma/ipe.h b/dma/ipe.h
index ce3ea4f..174e36e 100644
--- a/dma/ipe.h
+++ b/dma/ipe.h
@@ -5,6 +5,11 @@
#include "pcilib.h"
#include "version.h"
+#define IPEDMA_PAGE_SIZE 4096 /**< page size */
+#define IPEDMA_DMA_PAGES 1024 /**< number of DMA pages in the ring buffer to allocate */
+
+#define IPEDMA_DMA_TIMEOUT 100000 /**< us, overrides PCILIB_DMA_TIMEOUT (actual hardware timeout is 50ms according to Lorenzo) */
+
pcilib_dma_context_t *dma_ipe_init(pcilib_t *ctx, const char *model, const void *arg);
void dma_ipe_free(pcilib_dma_context_t *vctx);
@@ -68,6 +73,7 @@ static const pcilib_register_description_t ipe_dma_registers[] = {
{0x0018, 0, 32, 0, 0x00000000, PCILIB_REGISTER_R , PCILIB_REGISTER_STANDARD, PCILIB_REGISTER_BANK_DMA, "dma_mode_flags", "DMA operation mode"},
{0x0018, 0, 4, 0, 0x00000000, PCILIB_REGISTER_R , PCILIB_REGISTER_BITS, PCILIB_REGISTER_BANK_DMA, "pcie_gen", "PCIe version 2/3 depending on the used XILINX core"},
{0x0018, 4, 1, 0, 0x00000000, PCILIB_REGISTER_R , PCILIB_REGISTER_BITS, PCILIB_REGISTER_BANK_DMA, "streaming_dma", "Streaming mode (enabled/disabled)"},
+ {0x0020, 0, 32, 0, 0x00000000, PCILIB_REGISTER_R , PCILIB_REGISTER_STANDARD, PCILIB_REGISTER_BANK_DMA, "dma_firmware", "Version of DMA firmware"},
{0x0028, 0, 32, 0, 0x00000000, PCILIB_REGISTER_R , PCILIB_REGISTER_STANDARD, PCILIB_REGISTER_BANK_DMA, "mwr_perf", "MWR Performance"},
{0x003C, 0, 32, 0, 0x00000000, PCILIB_REGISTER_R , PCILIB_REGISTER_STANDARD, PCILIB_REGISTER_BANK_DMA, "cfg_lnk_width", "Negotiated and max width of PCIe Link"},
{0x003C, 0, 6, 0, 0x00000000, PCILIB_REGISTER_R , PCILIB_REGISTER_BITS, PCILIB_REGISTER_BANK_DMA, "cfg_cap_max_lnk_width", "Max link width"},
@@ -81,9 +87,18 @@ static const pcilib_register_description_t ipe_dma_registers[] = {
{0x0058, 0, 32, 0, 0x00000000, PCILIB_REGISTER_RW , PCILIB_REGISTER_STANDARD, PCILIB_REGISTER_BANK_DMA, "last_descriptor_read", "Last descriptor read by the host"},
{0x005C, 0, 32, 0, 0x00000000, PCILIB_REGISTER_RW , PCILIB_REGISTER_STANDARD, PCILIB_REGISTER_BANK_DMA, "desc_mem_addr", "Number of descriptors configured"},
{0x0060, 0, 32, 0, 0x00000000, PCILIB_REGISTER_RW , PCILIB_REGISTER_STANDARD, PCILIB_REGISTER_BANK_DMA, "update_thresh", "Update threshold of progress register"},
- {0x0000, 0, 32, PCILIB_VERSION, 0x00000000, PCILIB_REGISTER_R , PCILIB_REGISTER_STANDARD, PCILIB_REGISTER_BANK_DMACONF, "dma_version", "Version of DMA engine"},
+ {0x0000, 0, 32, PCILIB_VERSION, 0x00000000, PCILIB_REGISTER_R , PCILIB_REGISTER_STANDARD, PCILIB_REGISTER_BANK_DMACONF, "dma_version", "Version of DMA engine"},
+ {0x0004, 0, 32, IPEDMA_DMA_TIMEOUT, 0x00000000, PCILIB_REGISTER_RW , PCILIB_REGISTER_STANDARD, PCILIB_REGISTER_BANK_DMACONF, "dma_timeout", "Default DMA timeout"},
+ {0x0008, 0, 32, IPEDMA_DMA_PAGES, 0x00000000, PCILIB_REGISTER_RW , PCILIB_REGISTER_STANDARD, PCILIB_REGISTER_BANK_DMACONF, "dma_pages", "Number of buffers in DMA page ring"},
+ {0x000C, 0, 32, IPEDMA_PAGE_SIZE, 0x00000000, PCILIB_REGISTER_RW , PCILIB_REGISTER_STANDARD, PCILIB_REGISTER_BANK_DMACONF, "dma_page_size", "Size of a page in DMA page ring (multiple of 4K)"},
+ {0x0010, 0, 32, 0, 0xFFFFFFFF, PCILIB_REGISTER_RW , PCILIB_REGISTER_STANDARD, PCILIB_REGISTER_BANK_DMACONF, "ipedma_flags", "DMA Control Register"},
+ {0x0010, 0, 1, 0, 0xFFFFFFFF, PCILIB_REGISTER_RW , PCILIB_REGISTER_BITS, PCILIB_REGISTER_BANK_DMACONF, "ipedma_nosync", "Do not synchronize DMA pages"},
+ {0x0010, 1, 1, 0, 0xFFFFFFFF, PCILIB_REGISTER_RW , PCILIB_REGISTER_BITS, PCILIB_REGISTER_BANK_DMACONF, "ipedma_nosleep", "Do not sleep while there is no data"},
{0, 0, 0, 0, 0x00000000, 0, 0, 0, NULL, NULL}
};
+
+
+
#endif /* _PCILIB_EXPORT_C */