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async_mcp: clean eof flag when prepare rx descriptors

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This commit is contained in:
morris 2021-02-22 12:07:50 +08:00
parent db1c635db4
commit e926298160
1 changed files with 2 additions and 0 deletions
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2
components/esp_system/esp_async_memcpy.c
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@ -135,6 +135,7 @@ static int async_memcpy_prepare_receive(async_memcpy_t asmcp, void *buffer, size
while (size > DMA_DESCRIPTOR_BUFFER_MAX_SIZE) {
if (desc->dw0.owner != DMA_DESCRIPTOR_BUFFER_OWNER_DMA) {
desc->dw0.suc_eof = 0;
desc->dw0.size = DMA_DESCRIPTOR_BUFFER_MAX_SIZE;
desc->buffer = &buf[prepared_length];
desc = desc->next; // move to next descriptor
@ -148,6 +149,7 @@ static int async_memcpy_prepare_receive(async_memcpy_t asmcp, void *buffer, size
if (size) {
if (desc->dw0.owner != DMA_DESCRIPTOR_BUFFER_OWNER_DMA) {
end = desc; // the last descriptor used
desc->dw0.suc_eof = 0;
desc->dw0.size = size;
desc->buffer = &buf[prepared_length];
desc = desc->next; // move to next descriptor