static void handle_out_ep(int ep)
{
struct usb_ctrlrequest *req = (void*)AS3525_UNCACHED_ADDR(&setup_desc->data1);
int ep_sts = USB_OEP_STS(ep) & ~USB_OEP_STS_MASK(ep);
if (ep > 3)
panicf("out_ep > 3!?");
USB_OEP_STS(ep) = ep_sts; /* ACK */
if (ep_sts & USB_EP_STAT_BNA) { /* Buffer was not set up */
int ctrl = USB_OEP_CTRL(ep);
logf("ep%d OUT, status %x ctrl %x (BNA)\n", ep, ep_sts, ctrl);
panicf("ep%d OUT 0x%x 0x%x (BNA)", ep, ep_sts, ctrl);
ep_sts &= ~USB_EP_STAT_BNA;
}
if (ep_sts & USB_EP_STAT_OUT_RCVD) {
struct usb_dev_dma_desc *uc_desc = endpoints[ep][1].uc_desc;
int dma_sts = uc_desc->status;
int dma_len = dma_sts & 0xffff;
if (!(dma_sts & USB_DMA_DESC_ZERO_LEN)) {
logf("EP%d OUT token, st:%08x len:%d frm:%x data=%s epstate=%d\n",
ep, dma_sts & 0xf8000000, dma_len, (dma_sts >> 16) & 0x7ff,
make_hex(uc_desc->data_ptr, dma_len), endpoints[ep][1].state);
/*
* If parts of the just dmaed range are in cache, dump them now.
*/
discard_dcache_range(uc_desc->data_ptr, dma_len);
} else{
static void setup_desc_init(struct usb_dev_setup_buf *desc)
{
struct usb_dev_setup_buf *uc_desc = AS3525_UNCACHED_ADDR(desc);
uc_desc->status = USB_DMA_DESC_BS_HST_RDY;
uc_desc->resv = 0xffffffff;
uc_desc->data1 = 0xffffffff;
uc_desc->data2 = 0xffffffff;
}
const void * pcm_play_dma_get_peak_buffer(int *count)
{
int oldstatus = disable_irq_save();
size_t addr = DMAC_CH_SRC_ADDR(0);
size_t start_addr = (size_t)dma_start_addr;
size_t start_size = dma_start_size;
restore_interrupt(oldstatus);
*count = (start_size - addr + start_addr) >> 2;
return (void*)AS3525_UNCACHED_ADDR(addr);
}
static void dma_desc_init(int ep, int dir)
{
struct usb_dev_dma_desc *desc = &dmadescs[ep][dir];
struct usb_dev_dma_desc *uc_desc = AS3525_UNCACHED_ADDR(desc);
endpoints[ep][dir].uc_desc = uc_desc;
uc_desc->status = USB_DMA_DESC_BS_DMA_DONE | \
USB_DMA_DESC_LAST | \
USB_DMA_DESC_ZERO_LEN;
uc_desc->resv = 0xffffffff;
uc_desc->data_ptr = 0;
uc_desc->next_desc = 0;
}
char *make_hex(char *data, int len)
{
int i;
if (!((int)data & 0x40000000))
data = AS3525_UNCACHED_ADDR(data); /* don't pollute the cache */
if (len > 512)
len = 512;
for (i=0; i<len; i++) {
hexbuf[2*i ] = hextab[(unsigned char)data[i] >> 4 ];
hexbuf[2*i+1] = hextab[(unsigned char)data[i] & 0xf];
}
hexbuf[2*i] = 0;
return hexbuf;
}
/* Waiting for ack (either IN or OUT) */
EP0_WAIT_ACK = 1,
/* Ack complete, waiting for data (either IN or OUT)
* This state is necessary because if both ack and data complete in the
* same interrupt, we might process data completion before ack completion
* so we need this bizarre state */
EP0_WAIT_DATA = 2,
/* Setup packet complete, waiting for ack and data */
EP0_WAIT_DATA_ACK = 3,
};
/* endpoints[ep_num][DIR_IN/DIR_OUT] */
static struct usb_endpoint endpoints[USB_NUM_ENDPOINTS][2];
/* setup packet for EP0 */
static struct usb_ctrlrequest _ep0_setup_pkt __attribute__((aligned(32)));
static struct usb_ctrlrequest *ep0_setup_pkt = AS3525_UNCACHED_ADDR(&_ep0_setup_pkt);
/* state of EP0 */
static enum ep0state ep0_state;
void usb_attach(void)
{
logf("usb-drv: attach");
usb_enable(true);
}
static inline void usb_delay(void)
{
int i = 0;
while(i < 0x300)
{
void * pcm_dma_addr(void *addr)
{
if (addr != NULL)
addr = AS3525_UNCACHED_ADDR(addr);
return addr;
}