struct dma_controller *c;
struct dma_channel *channel;
int use_dma = 0;
+ int transfer_size;
c = musb->dma_controller;
channel = musb_ep->dma;
csr | MUSB_RXCSR_DMAMODE);
musb_writew(epio, MUSB_RXCSR, csr);
+ transfer_size = min(request->length - request->actual,
+ channel->max_len);
+ musb_ep->dma->desired_mode = 1;
+
} else {
if (!musb_ep->hb_mult &&
musb_ep->hw_ep->rx_double_buffered)
csr |= MUSB_RXCSR_AUTOCLEAR;
csr |= MUSB_RXCSR_DMAENAB;
musb_writew(epio, MUSB_RXCSR, csr);
- }
- if (request->actual < request->length) {
- int transfer_size = 0;
- if (use_mode_1) {
- transfer_size = min(request->length - request->actual,
- channel->max_len);
- musb_ep->dma->desired_mode = 1;
- } else {
- transfer_size = min(request->length - request->actual,
+ transfer_size = min(request->length - request->actual,
(unsigned)fifo_count);
- musb_ep->dma->desired_mode = 0;
- }
-
- use_dma = c->channel_program(
- channel,
- musb_ep->packet_sz,
- channel->desired_mode,
- request->dma
- + request->actual,
- transfer_size);
+ musb_ep->dma->desired_mode = 0;
}
+ use_dma = c->channel_program(
+ channel,
+ musb_ep->packet_sz,
+ channel->desired_mode,
+ request->dma
+ + request->actual,
+ transfer_size);
+
if (use_dma)
return;
}