static int __usb_read_fifo(void *buffer, unsigned int buffer_size)
{
u32 old_ep_idx = 0;
u32 fifo = 0;
u32 transfered = 0;
u32 left = 0;
u32 this_len;
old_ep_idx = USBC_GetActiveEp(sunxi_udc_source.usbc_hd);
USBC_SelectActiveEp(sunxi_udc_source.usbc_hd, SUNXI_USB_BULK_OUT_EP_INDEX); //选择当前EP
fifo = USBC_SelectFIFO(sunxi_udc_source.usbc_hd, SUNXI_USB_BULK_OUT_EP_INDEX); //选择fifo
left = buffer_size;
if(left)
{
while(left)
{
if(USBC_Dev_IsReadDataReady(sunxi_udc_source.usbc_hd, USBC_EP_TYPE_RX))
{
this_len = USBC_ReadLenFromFifo(sunxi_udc_source.usbc_hd, USBC_EP_TYPE_RX);
this_len = USBC_ReadPacket(sunxi_udc_source.usbc_hd, fifo, this_len, buffer + transfered);
transfered += this_len;
left -= this_len;
__usb_readcomplete(sunxi_udc_source.usbc_hd, USBC_EP_TYPE_RX, 1); //返回状态
}
}
USBC_INT_ClearEpPending(sunxi_udc_source.usbc_hd, USBC_EP_TYPE_RX, SUNXI_USB_BULK_OUT_EP_INDEX);
}
else
{
if(USBC_Dev_IsReadDataReady(sunxi_udc_source.usbc_hd, USBC_EP_TYPE_RX))
{
this_len = USBC_ReadLenFromFifo(sunxi_udc_source.usbc_hd, USBC_EP_TYPE_RX);
this_len = USBC_ReadPacket(sunxi_udc_source.usbc_hd, fifo, this_len, buffer);
transfered = this_len;
__usb_readcomplete(sunxi_udc_source.usbc_hd, USBC_EP_TYPE_RX, 1); //返回状态
}
else
{
sunxi_usb_dbg("sunxi usb rxdata not ready\n");
}
}
USBC_SelectActiveEp(sunxi_udc_source.usbc_hd, old_ep_idx);
sunxi_usb_dbg("read bytes 0x%x\n", transfered);
return transfered;
}
/*
*******************************************************************************
* ReadDataStatusComplete
*
* Description:
* void
*
* Parameters:
* void
*
* Return value:
* void
*
* note:
* void
*
*******************************************************************************
*/
static void ReadDataStatusComplete(__hdle hUSB, u32 ep_type, u32 complete)
{
USBC_Dev_ReadDataStatus(hUSB, ep_type, complete);
udelay(2);
if(ep_type == USBC_EP_TYPE_EP0){
/* clear data end */
if(complete){
USBC_Dev_Ctrl_ClearSetupEnd(hUSB);
}
/* clear irq */
USBC_INT_ClearEpPending(hUSB, USBC_EP_TYPE_TX, 0);
}
return;
}
/*
*******************************************************************************
* __usb_readcomplete
*
* Description:
* void
*
* Parameters:
* void
*
* Return value:
* void
*
* note:
* void
*
*******************************************************************************
*/
static void __usb_readcomplete(__hdle hUSB, u32 ep_type, u32 complete)
{
USBC_Dev_ReadDataStatus(hUSB, ep_type, complete);
if(ep_type == USBC_EP_TYPE_EP0)
{
/* clear data end */
if(complete)
{
USBC_Dev_Ctrl_ClearSetupEnd(hUSB);
}
/* clear irq */
USBC_INT_ClearEpPending(hUSB, USBC_EP_TYPE_TX, SUNXI_USB_CTRL_EP_INDEX);
}
return;
}
/*
*******************************************************************************
* WriteDataStatusComplete
*
* Description:
* void
*
* Parameters:
* void
*
* Return value:
* void
*
* note:
* void
*
*******************************************************************************
*/
static void WriteDataStatusComplete(__hdle hUSB, u32 ep_type, u32 complete)
{
USBC_Dev_WriteDataStatus(hUSB, ep_type, complete);
/* wait for tx packet sent out */
while(USBC_Dev_IsWriteDataReady(hUSB, ep_type)){
udelay(1);
}
if(ep_type == USBC_EP_TYPE_EP0){
/* clear data end */
if(complete){
USBC_Dev_Ctrl_ClearSetupEnd(hUSB);
}
/* clear irq */
USBC_INT_ClearEpPending(hUSB, USBC_EP_TYPE_TX, 0);
}
return;
}
/*
*******************************************************************************
* __usb_writecomplete
*
* Description:
* void
*
* Parameters:
* void
*
* Return value:
* void
*
* note:
* void
*
*******************************************************************************
*/
static void __usb_writecomplete(__hdle hUSB, u32 ep_type, u32 complete)
{
USBC_Dev_WriteDataStatus(hUSB, ep_type, complete);
/* wait for tx packet sent out */
while(USBC_Dev_IsWriteDataReady(hUSB, ep_type));
if(ep_type == USBC_EP_TYPE_EP0)
{
/* clear data end */
if(complete)
{
USBC_Dev_Ctrl_ClearSetupEnd(hUSB);
}
/* clear irq */
USBC_INT_ClearEpPending(hUSB, USBC_EP_TYPE_TX, SUNXI_USB_CTRL_EP_INDEX);
}
return;
}
/*
************************************************************************************************************
*
* function
*
* name :
*
* parmeters :
*
* return :
*
* note :
*
*
************************************************************************************************************
*/
void sunxi_usb_irq(void *data)
{
u8 misc_irq = 0;
u16 tx_irq = 0;
u16 rx_irq = 0;
u32 old_ep_idx = 0;
/* Save index */
old_ep_idx = USBC_GetActiveEp(sunxi_udc_source.usbc_hd);
/* Read status registers */
misc_irq = USBC_INT_MiscPending(sunxi_udc_source.usbc_hd);
tx_irq = USBC_INT_EpPending(sunxi_udc_source.usbc_hd, USBC_EP_TYPE_TX);
rx_irq = USBC_INT_EpPending(sunxi_udc_source.usbc_hd, USBC_EP_TYPE_RX);
/* RESET */
if(misc_irq & USBC_INTUSB_RESET)
{
sunxi_usb_dbg("IRQ: reset\n");
USBC_INT_ClearMiscPending(sunxi_udc_source.usbc_hd, USBC_INTUSB_RESET);
__usb_clear_all_irq();
USBC_SelectActiveEp(sunxi_udc_source.usbc_hd, 0);
USBC_Dev_SetAddress_default(sunxi_udc_source.usbc_hd);
sunxi_udc_source.address = 0; //default value
sunxi_udc_source.speed = USB_SPEED_HIGH; //default value
sunxi_dma_stop(sunxi_udc_source.dma_recv_channal);
sunxi_dma_stop(sunxi_udc_source.dma_send_channal);
sunxi_ubuf.rx_ready_for_data = 0;
sunxi_udev_active->state_reset();
return ;
}
/* RESUME 暂时不处理，仅仅清理中断*/
if (misc_irq & USBC_INTUSB_RESUME)
{
sunxi_usb_dbg("IRQ: resume\n");
/* clear interrupt */
USBC_INT_ClearMiscPending(sunxi_udc_source.usbc_hd, USBC_INTUSB_RESUME);
}
/* SUSPEND */
if (misc_irq & USBC_INTUSB_SUSPEND)
{
sunxi_usb_dbg("IRQ: suspend\n");
/* clear interrupt */
USBC_INT_ClearMiscPending(sunxi_udc_source.usbc_hd, USBC_INTUSB_SUSPEND);
}
/* DISCONNECT */
if(misc_irq & USBC_INTUSB_DISCONNECT)
{
sunxi_usb_dbg("IRQ: disconnect\n");
USBC_INT_ClearMiscPending(sunxi_udc_source.usbc_hd, USBC_INTUSB_DISCONNECT);
return ;
}
#if 0
/* SOF */
if(misc_irq & USBC_INTUSB_SOF)
{
sunxi_usb_dbg("IRQ: SOF\n");
USBC_INT_ClearMiscPending(sunxi_udc_source.usbc_hd, USBC_INTUSB_SOF);
}
#endif
/* ep0 */
if (tx_irq & (1 << SUNXI_USB_CTRL_EP_INDEX) )
{
sunxi_usb_dbg("IRQ: EP0\n");
USBC_INT_ClearEpPending(sunxi_udc_source.usbc_hd, USBC_EP_TYPE_TX, SUNXI_USB_CTRL_EP_INDEX);
//中断内完成ep0处理
ep0_recv_op();
}
/* tx endpoint data transfers */
if (tx_irq & (1 << SUNXI_USB_BULK_IN_EP_INDEX))
{
sunxi_usb_dbg("tx irq occur\n");
/* Clear the interrupt bit by setting it to 1 */
USBC_INT_ClearEpPending(sunxi_udc_source.usbc_hd, USBC_EP_TYPE_TX, SUNXI_USB_BULK_IN_EP_INDEX);
eptx_send_op();
}
/* rx endpoint data transfers */
if (rx_irq & (1 << SUNXI_USB_BULK_OUT_EP_INDEX))
{
sunxi_usb_dbg("rx irq occur\n");
/* Clear the interrupt bit by setting it to 1 */
USBC_INT_ClearEpPending(sunxi_udc_source.usbc_hd, USBC_EP_TYPE_RX, SUNXI_USB_BULK_OUT_EP_INDEX);
eprx_recv_op();
}
USBC_SelectActiveEp(sunxi_udc_source.usbc_hd, old_ep_idx);
return ;
}
