#include "system.h"

void Init_UART(void)
{
	*pUART_GCTL = 0x0001;	//UART Global Control Register
							//UCEN=1(Enable UART Clocks)
							//	1:Enable UART clocks
							//	0:Disable UART clocks
							//IREN=0(Enable IrDA Mode)
							//	1:Enable IrDA
							//	0:Disable IrDA
							//TPOLC=0(IrDA TX Polarity Change)
							//	1:Serial line idles high
							//	0:Serial line idles low
							//RPOLC=0(IrDA RX Polarity Change)
							//	1:Serial line idles high
							//	0:Serial line idles low
							//FPE=0(Force Parity Error on Transmit)
							//	1:Force error
							//	0:Normal operation
							//FFE=0(Force Framing Error on Transmit)
							//	1:Force error
							//	0:Normal operaion
	*pUART_LCR = 0x0083;		//UART Line Control Register, prepare for DLL and DLH setting
	asm("ssync;");
	*pUART_DLL = 0x002B;		//43
	*pUART_DLH = 0x0000;		//UART Divisor Latch Registers
							
	asm("ssync;");
	*pUART_LCR = 0x0003;		//UART Line Control Register
							//WLS[1:0]=11(Word Length Select)
							//	00:5-bit word
							//	01:6-bit word
							//	10:7-bit word
							//	11:8-bit word
							//STB=0(Stop Bits)
							//	1:2 stop bits for non-5-bit word length or 1/2 stop bits for 5-bit word length
							//	0:1 stop bit
							//PEN=0(Parity Enable)
							// 	1:Transmit and check parity
							//	0:Parity not transmitted or checked
							//EPS=0(Even Parity Select)
							//	1:Even parity
							//	0:Odd parity when PEN=1 and STP=0
							//STP=0(Stick Parity)
							//	1:Force parity to defined value if set and PEN=1
							//		EPS=1,parity transmitted and checked as 0
							//		EPS=0,parity transmitted and checked as 1
							//	0:Normal ???
							//SB=0(Set Break)
							//	0:Not force
							//	1:Force TX pin to 0
							//DLAB=0(Divisor Latch Access)
							//	1:Enable access to UART_DLL and UART_DLH
							//	0:Enable access to UART_THR,UART_RBR and UART_IER
	asm("ssync;");
	*pUART_MCR = 0x0000;	//Modem Control Register
							//Loop=0(Loopback mode enable)
							//Forces TX to high and disconnects RX from RSR
	*pUART_IER = 0x0001;		//UART Interrupt Enable Register
							//ERBFI=1(Enable Receive Buffer Full Interrupt)
							//	0:No interrupt
							//	1:Generate RX interrupt if DR bit in UART_LSR is set
							//ETBEI=0(Enable Transmit Buffer Empty Interrupt)
							//	0:No interrrupt
							//	1:Generate TX interrupt if THRE bit in UART_LSR is set
							//ELSI=0(Enable RX Status Interrupt)
							//	0:No interrupt
							//	1:Generate line status interrupt if any of UART_LSR[4:1] is set
	asm("ssync;");
}



void Init_EBIU(void)
{
	*pEBIU_AMBCTL0	= 0x7bb07bb0;
	*pEBIU_AMBCTL1	= 0x7bb07bb0;
	*pEBIU_AMGCTL	= 0x00ff;

	
	*pLED = 0x00;
}

void Init_Interrupts(void)
{
	// assign core IDs to interrupts
	*pSICB_IAR3 = 0xfff4ffff;					// UART -> ID4
				
	// assign ISRs to interrupt vectors
	register_handler(ik_ivg11, UART_ISR);		// UART ISR -> IVG 11

	// enable UART interrupt
	*pSICB_IMASK0 = 0x10000000;
}