/*
************************************************************************************************************
*
* function
*
* name :
*
* parmeters :
*
* return :
*
* note :
*
*
************************************************************************************************************
*/
static int eprx_recv_op(void)
{
uint old_ep_index;
uint this_len;
uint fifo;
old_ep_index = USBC_GetActiveEp(sunxi_udc_source.usbc_hd);
USBC_SelectActiveEp(sunxi_udc_source.usbc_hd, SUNXI_USB_BULK_OUT_EP_INDEX);
if (USBC_Dev_IsEpStall(sunxi_udc_source.usbc_hd, USBC_EP_TYPE_RX))
{
USBC_Dev_EpClearStall(sunxi_udc_source.usbc_hd, USBC_EP_TYPE_RX);
printf("sunxi ubs read error: usb rx ep is busy already\n");
}
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);
if(fastboot_data_flag == 1)
{
fifo = USBC_SelectFIFO(sunxi_udc_source.usbc_hd, SUNXI_USB_BULK_OUT_EP_INDEX);
sunxi_ubuf.rx_req_length = USBC_ReadPacket(sunxi_udc_source.usbc_hd, fifo, this_len, sunxi_ubuf.rx_req_buffer);
sunxi_ubuf.rx_req_buffer += this_len;
sunxi_usb_dbg("special read ep bytes 0x%x\n", sunxi_ubuf.rx_req_length);
__usb_readcomplete(sunxi_udc_source.usbc_hd, USBC_EP_TYPE_RX, 1); //返回状态
}
else if(!sunxi_ubuf.rx_ready_for_data)
{
fifo = USBC_SelectFIFO(sunxi_udc_source.usbc_hd, SUNXI_USB_BULK_OUT_EP_INDEX);
memset(sunxi_ubuf.rx_req_buffer, 0, 64);
sunxi_ubuf.rx_req_length = USBC_ReadPacket(sunxi_udc_source.usbc_hd, fifo, this_len, sunxi_ubuf.rx_req_buffer);
sunxi_ubuf.rx_ready_for_data = 1;
sunxi_usb_dbg("read ep bytes 0x%x\n", sunxi_ubuf.rx_req_length);
__usb_readcomplete(sunxi_udc_source.usbc_hd, USBC_EP_TYPE_RX, 1); //返回状态
}
else
{
sunxi_usb_dbg("eprx do nothing and left it to dma\n");
}
}
else
{
sunxi_usb_dbg("sunxi usb rxdata not ready\n");
}
}
USBC_SelectActiveEp(sunxi_udc_source.usbc_hd, old_ep_index);
return 0;
}
/*
************************************************************************************************************
*
* function
*
* name :
*
* parmeters :
*
* return :
*
* note :
*
*
************************************************************************************************************
*/
static int ep0_recv_op(void)
{
u32 old_ep_index = 0;
int ret = 0;
static uint ep0_stage = 0;
if(!ep0_stage)
{
memset(&sunxi_udc_source.standard_reg, 0, sizeof(struct usb_device_request));
}
old_ep_index = USBC_GetActiveEp(sunxi_udc_source.usbc_hd);
USBC_SelectActiveEp(sunxi_udc_source.usbc_hd, SUNXI_USB_CTRL_EP_INDEX);
//clear stall status
if(USBC_Dev_IsEpStall(sunxi_udc_source.usbc_hd, USBC_EP_TYPE_EP0))
{
printf("ERR: handle_ep0: ep0 stall\n");
USBC_Dev_EpClearStall(sunxi_udc_source.usbc_hd, USBC_EP_TYPE_EP0);
ret = -1;
goto __ep0_recv_op_err;
}
//clear setup end
if (USBC_Dev_Ctrl_IsSetupEnd(sunxi_udc_source.usbc_hd))
{
USBC_Dev_Ctrl_ClearSetupEnd(sunxi_udc_source.usbc_hd);
}
//检查读ep0数据是否完成
if(USBC_Dev_IsReadDataReady(sunxi_udc_source.usbc_hd, USBC_EP_TYPE_EP0))
{
uint status;
if(!ep0_stage)
{
status = __usb_read_ep0_data(&sunxi_udc_source.standard_reg, ep0_stage);
}
else
{
status = __usb_read_ep0_data(sunxi_usb_ep0_buffer, ep0_stage);
}
if(status!= 0)
{
printf("sunxi usb err: read_request failed\n");
ret = -1;
goto __ep0_recv_op_err;
}
}
else //此情况通常由于ep0发送空包引起，可以不处理
{
sunxi_usb_dbg("sunxi usb msg: ep0 rx data is not ready\n");
goto __ep0_recv_op_err;
}
/* Check data */
if(USB_REQ_TYPE_STANDARD == (sunxi_udc_source.standard_reg.bmRequestType & USB_REQ_TYPE_MASK))
{
ret = SUNXI_USB_REQ_UNMATCHED_COMMAND;
/* standard */
switch(sunxi_udc_source.standard_reg.bRequest)
{
case USB_REQ_GET_STATUS: // 0x00
{
/* device-to-host */
if(USB_DIR_IN == (sunxi_udc_source.standard_reg.bmRequestType & USB_REQ_DIRECTION_MASK))
{
ret = sunxi_udev_active->standard_req_op(USB_REQ_GET_STATUS, &sunxi_udc_source.standard_reg, sunxi_usb_ep0_buffer);
}
break;
}
case USB_REQ_CLEAR_FEATURE: // 0x01
{
/* host-to-device */
if(USB_DIR_OUT == (sunxi_udc_source.standard_reg.bmRequestType & USB_REQ_DIRECTION_MASK))
{
ret = sunxi_udev_active->standard_req_op(USB_REQ_CLEAR_FEATURE, &sunxi_udc_source.standard_reg, NULL);
}
break;
}
case USB_REQ_SET_FEATURE: // 0x03
{
/* host-to-device */
if(USB_DIR_OUT == (sunxi_udc_source.standard_reg.bmRequestType & USB_REQ_DIRECTION_MASK))
{
ret = sunxi_udev_active->standard_req_op(USB_REQ_SET_FEATURE, &sunxi_udc_source.standard_reg, NULL);
}
break;
}
case USB_REQ_SET_ADDRESS: // 0x05
{
/* host-to-device */
if(USB_DIR_OUT == (sunxi_udc_source.standard_reg.bmRequestType & USB_REQ_DIRECTION_MASK))
{
if(USB_RECIP_DEVICE == (sunxi_udc_source.standard_reg.bmRequestType & USB_REQ_RECIPIENT_MASK))
{
/* receiver is device */
ret = sunxi_udev_active->standard_req_op(USB_REQ_SET_ADDRESS, &sunxi_udc_source.standard_reg, NULL);
}
}
break;
}
case USB_REQ_GET_DESCRIPTOR: // 0x06
{
/* device-to-host */
if(USB_DIR_IN == (sunxi_udc_source.standard_reg.bmRequestType & USB_REQ_DIRECTION_MASK))
{
if(USB_RECIP_DEVICE == (sunxi_udc_source.standard_reg.bmRequestType & USB_REQ_RECIPIENT_MASK))
{
ret = sunxi_udev_active->standard_req_op(USB_REQ_GET_DESCRIPTOR, &sunxi_udc_source.standard_reg, sunxi_usb_ep0_buffer);
}
}
break;
}
case USB_REQ_SET_DESCRIPTOR: // 0x07
{
/* host-to-device */
if(USB_DIR_OUT == (sunxi_udc_source.standard_reg.bmRequestType & USB_REQ_DIRECTION_MASK))
{
if(USB_RECIP_DEVICE == (sunxi_udc_source.standard_reg.bmRequestType & USB_REQ_RECIPIENT_MASK))
{
//there is some problem
ret = sunxi_udev_active->standard_req_op(USB_REQ_SET_DESCRIPTOR, &sunxi_udc_source.standard_reg, sunxi_usb_ep0_buffer);
}
}
break;
}
case USB_REQ_GET_CONFIGURATION: // 0x08
{
/* device-to-host */
if(USB_DIR_IN == (sunxi_udc_source.standard_reg.bmRequestType & USB_REQ_DIRECTION_MASK))
{
if(USB_RECIP_DEVICE == (sunxi_udc_source.standard_reg.bmRequestType & USB_REQ_RECIPIENT_MASK))
{
ret = sunxi_udev_active->standard_req_op(USB_REQ_GET_CONFIGURATION, &sunxi_udc_source.standard_reg, sunxi_usb_ep0_buffer);
}
}
break;
}
case USB_REQ_SET_CONFIGURATION: // 0x09
{
/* host-to-device */
if(USB_DIR_OUT == (sunxi_udc_source.standard_reg.bmRequestType & USB_REQ_DIRECTION_MASK))
{
if(USB_RECIP_DEVICE == (sunxi_udc_source.standard_reg.bmRequestType & USB_REQ_RECIPIENT_MASK))
{
ret = sunxi_udev_active->standard_req_op(USB_REQ_SET_CONFIGURATION, &sunxi_udc_source.standard_reg, NULL);
}
}
break;
}
case USB_REQ_GET_INTERFACE: // 0x0a
{
/* device-to-host */
if(USB_DIR_IN == (sunxi_udc_source.standard_reg.bmRequestType & USB_REQ_DIRECTION_MASK))
{
if(USB_RECIP_DEVICE == (sunxi_udc_source.standard_reg.bmRequestType & USB_REQ_RECIPIENT_MASK))
{
ret = sunxi_udev_active->standard_req_op(USB_REQ_GET_INTERFACE, &sunxi_udc_source.standard_reg, sunxi_usb_ep0_buffer);
}
}
break;
}
case USB_REQ_SET_INTERFACE: // 0x0b
{
/* host-to-device */
if(USB_DIR_OUT == (sunxi_udc_source.standard_reg.bmRequestType & USB_REQ_DIRECTION_MASK))
{
if(USB_RECIP_INTERFACE == (sunxi_udc_source.standard_reg.bmRequestType & USB_REQ_RECIPIENT_MASK))
{
ret = sunxi_udev_active->standard_req_op(USB_REQ_SET_INTERFACE, &sunxi_udc_source.standard_reg, NULL);
}
}
break;
}
case USB_REQ_SYNCH_FRAME: // 0x0b
{
/* device-to-host */
if(USB_DIR_IN == (sunxi_udc_source.standard_reg.bmRequestType & USB_REQ_DIRECTION_MASK))
{
if(USB_RECIP_INTERFACE == (sunxi_udc_source.standard_reg.bmRequestType & USB_REQ_RECIPIENT_MASK))
{
//there is some problem
if(!ep0_stage)
{
ep0_stage = 1;
}
else
{
ret = sunxi_udev_active->standard_req_op(USB_REQ_SYNCH_FRAME, &sunxi_udc_source.standard_reg, NULL);
ep0_stage = 0;
}
}
}
break;
}
default:
{
printf("sunxi usb err: unknown usb out request to device\n");
USBC_Dev_EpSendStall(sunxi_udc_source.usbc_hd, USBC_EP_TYPE_EP0);
ret = SUNXI_USB_REQ_DEVICE_NOT_SUPPORTED;
ep0_stage = 0;
break;
}
}
}
else
{
/* Non-Standard Req */
printf("non standard req\n");
ret = sunxi_udev_active->nonstandard_req_op(USB_REQ_GET_STATUS, &sunxi_udc_source.standard_reg, sunxi_usb_ep0_buffer, ep0_stage);
if(ret == SUNXI_USB_REQ_DATA_HUNGRY)
{
ep0_stage = 1;
}
else if(ret == SUNXI_USB_REQ_SUCCESSED)
{
ep0_stage = 0;
}
else if(ret < 0)
{
ep0_stage = 0;
printf("err: unkown bmRequestType(%d)\n", sunxi_udc_source.standard_reg.bmRequestType);
USBC_Dev_EpSendStall(sunxi_udc_source.usbc_hd, USBC_EP_TYPE_EP0);
}
}
__ep0_recv_op_err:
USBC_SelectActiveEp(sunxi_udc_source.usbc_hd, old_ep_index);
return ret;
}