diff options
Diffstat (limited to 'dma/nwl_loopback.c')
| -rw-r--r-- | dma/nwl_loopback.c | 16 |
1 files changed, 13 insertions, 3 deletions
diff --git a/dma/nwl_loopback.c b/dma/nwl_loopback.c index de17962..1904177 100644 --- a/dma/nwl_loopback.c +++ b/dma/nwl_loopback.c @@ -114,9 +114,6 @@ double dma_nwl_benchmark(pcilib_dma_context_t *vctx, pcilib_dma_engine_addr_t dm return -1; } - memset(cmp, 0x13, size * sizeof(uint32_t)); - - #ifdef DEBUG_HARDWARE if (ctx->type == PCILIB_NWL_MODIFICATION_IPECAMERA) { pcilib_write_register(ctx->pcilib, NULL, "control", 0x1e5); @@ -127,6 +124,8 @@ double dma_nwl_benchmark(pcilib_dma_context_t *vctx, pcilib_dma_engine_addr_t dm // Benchmark for (i = 0; i < iterations; i++) { + memset(cmp, 0x13 + i, size * sizeof(uint32_t)); + #ifdef DEBUG_HARDWARE if (ctx->type == PCILIB_NWL_MODIFICATION_IPECAMERA) { pcilib_write_register(ctx->pcilib, NULL, "control", 0x1e1); @@ -165,6 +164,17 @@ double dma_nwl_benchmark(pcilib_dma_context_t *vctx, pcilib_dma_engine_addr_t dm if (direction == PCILIB_DMA_BIDIRECTIONAL) { res = memcmp(buf, cmp, size * sizeof(uint32_t)); if (res) { + for (i = 0; i < size; i++) + if (buf[i] != cmp[i]) break; + + bytes = i; + printf("Expected: *%lx, Written:", 0x13 + i); + for (; (i < size)&&(i < (bytes + 16)); i++) { + if (((i - bytes)%8)==0) printf("\n"); + printf("% 10lx", buf[i]); + } + printf("\n\n"); + error = "Written and read values does not match"; break; } |