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USB-CDC: called handle_interrupts inside usb_eth_send

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The patch removes an endless loop  in the usb_eth_send
if the tx_complete is not called before going
in the loop. The driver interrupt routine is called
allowing the driver to check if the TX is completed.

Signed-off-by: Stefano Babic <sbabic@denx.de>
This commit is contained in:
Stefano Babic 2010-08-15 14:19:00 +02:00 committed by Remy Bohmer
parent 8046077219
commit a170f2c797
1 changed files with 9 additions and 1 deletions
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10
drivers/usb/gadget/ether.c
View file

@ -1801,6 +1801,8 @@ static int usb_eth_send(struct eth_device* netdev, volatile void* packet, int le
int retval;
struct usb_request *req = NULL;
struct eth_dev *dev = &l_ethdev;
unsigned long ts;
unsigned long timeout = USB_CONNECT_TIMEOUT;
debug("%s:...\n", __func__);
@ -1826,6 +1828,8 @@ static int usb_eth_send(struct eth_device* netdev, volatile void* packet, int le
? ((dev->tx_qlen % qmult) != 0) : 0;
#endif
dev->tx_qlen=1;
ts = get_timer(0);
packet_sent = 0;
retval = usb_ep_queue (dev->in_ep, req, GFP_ATOMIC);
@ -1833,7 +1837,11 @@ static int usb_eth_send(struct eth_device* netdev, volatile void* packet, int le
debug("%s: packet queued\n", __func__);
while(!packet_sent)
{
packet_sent=0;
if (get_timer(ts) > timeout) {
printf("timeout sending packets to usb ethernet\n");
return -1;
}
usb_gadget_handle_interrupts();
}
return 0;