diff options
Diffstat (limited to 'hw')
| -rw-r--r-- | hw/dma/xilinx_axidma.c | 14 |
1 files changed, 7 insertions, 7 deletions
diff --git a/hw/dma/xilinx_axidma.c b/hw/dma/xilinx_axidma.c index 101d32a..87be9ca 100644 --- a/hw/dma/xilinx_axidma.c +++ b/hw/dma/xilinx_axidma.c @@ -110,6 +110,7 @@ struct Stream { int nr; + bool sof; struct SDesc desc; unsigned int complete_cnt; uint32_t regs[R_MAX]; @@ -174,6 +175,7 @@ static void stream_reset(struct Stream *s) { s->regs[R_DMASR] = DMASR_HALTED; /* starts up halted. */ s->regs[R_DMACR] = 1 << 16; /* Starts with one in compl threshold. */ + s->sof = true; } /* Map an offset addr into a channel index. */ @@ -321,12 +323,11 @@ static void stream_process_mem2s(struct Stream *s, StreamSlave *tx_data_dev, } static size_t stream_process_s2mem(struct Stream *s, unsigned char *buf, - size_t len) + size_t len, bool eop) { uint32_t prev_d; unsigned int rxlen; size_t pos = 0; - int sof = 1; if (!stream_running(s) || stream_idle(s)) { return 0; @@ -352,16 +353,16 @@ static size_t stream_process_s2mem(struct Stream *s, unsigned char *buf, pos += rxlen; /* Update the descriptor. */ - if (!len) { + if (eop) { stream_complete(s); memcpy(s->desc.app, s->app, sizeof(s->desc.app)); s->desc.status |= SDESC_STATUS_EOF; } - s->desc.status |= sof << SDESC_STATUS_SOF_BIT; + s->desc.status |= s->sof << SDESC_STATUS_SOF_BIT; s->desc.status |= SDESC_STATUS_COMPLETE; stream_desc_store(s, s->regs[R_CURDESC]); - sof = 0; + s->sof = eop; /* Advance. */ prev_d = s->regs[R_CURDESC]; @@ -426,8 +427,7 @@ xilinx_axidma_data_stream_push(StreamSlave *obj, unsigned char *buf, size_t len, struct Stream *s = &ds->dma->streams[1]; size_t ret; - assert(eop); - ret = stream_process_s2mem(s, buf, len); + ret = stream_process_s2mem(s, buf, len, eop); stream_update_irq(s); return ret; } |