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authorSuren A. Chilingaryan <csa@dside.dyndns.org>2011-07-17 18:26:46 +0200
committerSuren A. Chilingaryan <csa@dside.dyndns.org>2011-07-17 18:26:46 +0200
commit8ad813673ae155ce0e601ae864466a59ce7afa95 (patch)
treea7289e7179fed4ac939430de259cbaf1df7a71dc /dma/nwl_engine.c
parent21d12d6157061bca3926607a248ccc16d6b07bd1 (diff)
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Few more fixes
Diffstat (limited to 'dma/nwl_engine.c')
-rw-r--r--dma/nwl_engine.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/dma/nwl_engine.c b/dma/nwl_engine.c
index 6987045..669dbbd 100644
--- a/dma/nwl_engine.c
+++ b/dma/nwl_engine.c
@@ -65,6 +65,7 @@ int dma_nwl_start_engine(nwl_dma_t *ctx, pcilib_dma_engine_t dma) {
if (info->started) return 0;
+
// This will only successed if there are no parallel access to DMA engine
err = dma_nwl_allocate_engine_buffers(ctx, info);
if (err) {
@@ -77,6 +78,7 @@ int dma_nwl_start_engine(nwl_dma_t *ctx, pcilib_dma_engine_t dma) {
info->preserve = 1;
// Acknowledge asserted engine interrupts
+ nwl_read_register(val, ctx, info->base_addr, REG_DMA_ENG_CTRL_STATUS);
if (val & DMA_ENG_INT_ACTIVE_MASK) {
val |= DMA_ENG_ALLINT_MASK;
nwl_write_register(val, ctx, base, REG_DMA_ENG_CTRL_STATUS);