int MeUsb::probeDevice()
{
int c;
if(!usb_online){
USB_WR( CMD_CHECK_EXIST );
USB_WR( 0x5A);
c = USB_RD(); // should return 0xA5
Serial.println(c);
if(c!=0xA5) return 0;
usb_online = true;
resetBus();
}
c = getIrq();
if(c!=USB_INT_CONNECT) return 0;
resetBus(); // reset bus and wait the device online again
c=0;
while(c!=USB_INT_CONNECT){
delay(500); // some device may need long time to get ready
c = getIrq();
Serial.print("waiting:");
Serial.println(c,HEX);
}
if( initHIDDevice()==1)
device_online=true;
}
int16_t MeUSBHost::probeDevice()
{
int16_t c;
if(!ch375_online){
CH375_WR( CMD_CHECK_EXIST );
CH375_WR( 0x5A);
c = CH375_RD(); // should return 0xA5
if(c!=0xA5) return 0;
ch375_online = true;
resetBus();
}
c = getIrq();
if(c!=USB_INT_CONNECT) return 0;
resetBus(); // reset bus and wait the device online again
c=0;
while(c!=USB_INT_CONNECT){
delay(500); // some device may need long time to get ready
c = getIrq();
#ifdef CH375_DBG
Serial.print("waiting:");
Serial.println(c,HEX);
#endif
}
if( initHIDDevice()==1)
device_online=true;
}
unsigned char MeUsb::clr_stall6(void)
{
USB_WR( CMD_CLR_STALL );
USB_WR( endp_out_addr | 0x80 );
endp6_mode=0x80;
return getIrq();
}
uint8_t MeUSBHost::clr_stall6(void)
{
CH375_WR( CMD_CLR_STALL );
CH375_WR( endp_out_addr | 0x80 );
endp6_mode=0x80;
return getIrq();
}
uint8_t MeUSBHost::issue_token( uint8_t endp_and_pid )
{
CH375_WR( CMD_ISSUE_TOKEN );
CH375_WR( endp_and_pid ); /* Bit7~4 for EndPoint No, Bit3~0 for Token PID */
#ifdef CH375_DBG
Serial.printf("issue token %x\r\n",endp_and_pid);
#endif
delay(2);
return getIrq();
}
unsigned char MeUsb::issue_token( unsigned char endp_and_pid )
{
USB_WR( CMD_ISSUE_TOKEN );
USB_WR( endp_and_pid ); /* Bit7~4 for EndPoint No, Bit3~0 for Token PID */
#ifdef USB_DBG
Serial.print("issue token:");
Serial.println(endp_and_pid,HEX);
#endif
delay(2);
return getIrq();
}
unsigned char MeUsb::set_addr( unsigned char addr )
{
unsigned char irq;
USB_WR(CMD_SET_ADDRESS);
USB_WR(addr);
irq = getIrq();
if(irq==USB_INT_SUCCESS){
USB_WR(CMD_SET_USB_ADDR);
USB_WR(addr);
}
return irq;
}
uint8_t MeUSBHost::set_addr( uint8_t addr )
{
uint8_t irq;
CH375_WR(CMD_SET_ADDRESS);
CH375_WR(addr);
irq = getIrq();
if(irq==USB_INT_SUCCESS){
CH375_WR(CMD_SET_USB_ADDR);
CH375_WR(addr);
}
return irq;
}
unsigned char MeUsb::get_desr(unsigned char type)
{
USB_WR( CMD_GET_DESCR );
USB_WR( type ); /* description type, only 1(device) or 2(config) */
return getIrq();
}
unsigned char MeUsb::set_config(unsigned char cfg){
endp6_mode=endp7_mode=0x80; // reset the sync flags
USB_WR(CMD_SET_CONFIG);
USB_WR(cfg);
return getIrq();
}
uint8_t MeUSBHost::get_desr(uint8_t type)
{
CH375_WR( CMD_GET_DESCR );
CH375_WR( type ); /* description type, only 1(device) or 2(config) */
return getIrq();
}
uint8_t MeUSBHost::set_config(uint8_t cfg){
endp6_mode=endp7_mode=0x80; // reset the sync flags
CH375_WR(CMD_SET_CONFIG);
CH375_WR(cfg);
return getIrq();
}
