diff options
Diffstat (limited to 'dma')
| -rw-r--r-- | dma/ipe.c | 9 |
1 files changed, 6 insertions, 3 deletions
@@ -420,16 +420,19 @@ int dma_ipe_stream_read(pcilib_dma_context_t *vctx, pcilib_dma_engine_t dma, uin memcpy(&cur, &start, sizeof(struct timeval)); while (((*last_written_addr_ptr == 0)||(ctx->last_read_addr == (*last_written_addr_ptr)))&&((wait == PCILIB_TIMEOUT_INFINITE)||(((cur.tv_sec - start.tv_sec)*1000000 + (cur.tv_usec - start.tv_usec)) < wait))) { usleep(10); +#ifdef IPEDMA_SUPPORT_EMPTY_DETECTED + if (*empty_detected_ptr) break; +#endif /* IPEDMA_SUPPORT_EMPTY_DETECTED */ gettimeofday(&cur, NULL); } // Failing out if we exited on timeout if ((ctx->last_read_addr == (*last_written_addr_ptr))||(*last_written_addr_ptr == 0)) { #ifdef IPEDMA_SUPPORT_EMPTY_DETECTED -//# ifdef IPEDMA_DEBUG - if ((wait)&&(*last_written_addr_ptr)) +# ifdef IPEDMA_DEBUG + if ((wait)&&(*last_written_addr_ptr)&&(!*empty_detected_ptr)) pcilib_warning("The empty_detected flag is not set, but no data arrived within %lu us\n", wait); -//# endif /* IPEDMA_DEBUG */ +# endif /* IPEDMA_DEBUG */ #endif /* IPEDMA_SUPPORT_EMPTY_DETECTED */ return (ret&PCILIB_STREAMING_FAIL)?PCILIB_ERROR_TIMEOUT:0; } |