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yaml
---
r: 213602
b: refs/heads/master
c: e7379aa
h: refs/heads/master
v: v3
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Ming Lei authored and Greg Kroah-Hartman committed Oct 22, 2010
1 parent 96de57c commit d75a513
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Showing 2 changed files with 30 additions and 31 deletions.
2 changes: 1 addition & 1 deletion [refs]
Original file line number Diff line number Diff line change
@@ -1,2 +1,2 @@
---
refs/heads/master: a6038ee76a29ea31f8aae4eb6c419794c739e077
refs/heads/master: e7379aaa5ca12f9e011eb5a6bcba88e9bbbfbf87
59 changes: 29 additions & 30 deletions trunk/drivers/usb/musb/musb_gadget.c
Original file line number Diff line number Diff line change
Expand Up @@ -477,40 +477,39 @@ void musb_g_tx(struct musb *musb, u8 epnum)
epnum, csr, musb_ep->dma->actual_len, request);
}

if (is_dma || request->actual == request->length) {
/*
* First, maybe a terminating short packet. Some DMA
* engines might handle this by themselves.
*/
if ((request->zero && request->length
&& request->length % musb_ep->packet_sz == 0)
/*
* First, maybe a terminating short packet. Some DMA
* engines might handle this by themselves.
*/
if ((request->zero && request->length
&& (request->length % musb_ep->packet_sz == 0)
&& (request->actual == request->length))
#ifdef CONFIG_USB_INVENTRA_DMA
|| (is_dma && (!dma->desired_mode ||
(request->actual &
(musb_ep->packet_sz - 1))))
|| (is_dma && (!dma->desired_mode ||
(request->actual &
(musb_ep->packet_sz - 1))))
#endif
) {
/*
* On DMA completion, FIFO may not be
* available yet...
*/
if (csr & MUSB_TXCSR_TXPKTRDY)
return;
) {
/*
* On DMA completion, FIFO may not be
* available yet...
*/
if (csr & MUSB_TXCSR_TXPKTRDY)
return;

DBG(4, "sending zero pkt\n");
musb_writew(epio, MUSB_TXCSR, MUSB_TXCSR_MODE
| MUSB_TXCSR_TXPKTRDY);
request->zero = 0;
}
DBG(4, "sending zero pkt\n");
musb_writew(epio, MUSB_TXCSR, MUSB_TXCSR_MODE
| MUSB_TXCSR_TXPKTRDY);
request->zero = 0;
}

if (request->actual == request->length) {
musb_g_giveback(musb_ep, request, 0);
request = musb_ep->desc ? next_request(musb_ep) : NULL;
if (!request) {
DBG(4, "%s idle now\n",
musb_ep->end_point.name);
return;
}
if (request->actual == request->length) {
musb_g_giveback(musb_ep, request, 0);
request = musb_ep->desc ? next_request(musb_ep) : NULL;
if (!request) {
DBG(4, "%s idle now\n",
musb_ep->end_point.name);
return;
}
}

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