static void ep_recv(int ep, void *ptr, int length)
{
endpoints[ep].busy = true;
endpoints[ep].size = length;
DOEPCTL(ep) &= ~0x20000; /* EPx UNSTALL */
DOEPCTL(ep) |= 0x8000; /* EPx OUT ACTIVE */
int blocksize = usb_drv_port_speed() ? 512 : 64;
int packets = (length + blocksize - 1) / blocksize;
if (!length)
{
DOEPTSIZ(ep) = 1 << 19; /* one empty packet */
DOEPDMA(ep) = NULL;
}
else
{
DOEPTSIZ(ep) = length | (packets << 19);
DOEPDMA(ep) = ptr;
}
clean_dcache();
DOEPCTL(ep) |= 0x84000000; /* EPx OUT ENABLE CLEARNAK */
}
static void prepare_setup_ep0(void)
{
logf("usb-drv: prepare EP0");
/* setup DMA */
DOEPDMA(0) = (unsigned long)AS3525_PHYSICAL_ADDR(&_ep0_setup_pkt);
/* Setup EP0 OUT with the following parameters:
* packet count = 1
* setup packet count = 1
* transfer size = 8 (setup packet)
*/
DOEPTSIZ(0) = (1 << DEPTSIZ0_supcnt_bitp)
| (1 << DEPTSIZ0_pkcnt_bitp)
| 8;
/* Enable endpoint, clear nak */
ep0_state = EP0_WAIT_SETUP;
DOEPCTL(0) |= DEPCTL_epena | DEPCTL_cnak;
}
