uart.c

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}

/******************************************************************************
@@
@@ [Name]       : apd_UARTClrModemCtrlReg
@@
@@ [Summary]    : This function clears the given bits in the UART's MODEM
@@                Control register to 0
@@
@@ [Argument]   : uart_num: Specify the UART channel number
@@                APD_UART_CH0 for channel 0
@@                APD_UART_CH1 for channel 1
@@
@@                bdata: Specify which bits to be reset to 0
@@                For example, to reset bit 0 and 2, bdata is 0x05
@@
@@ [Return]     : None
@@
@@ [Desc]       : Clears the selected UART MODEM Control register's bits to 0
@@
@@ [END]
******************************************************************************/

void apd_UARTClrModemCtrlReg(APD_UART_NUM_TYPE uart_num, unsigned char bdata)
{
    *(volatile unsigned char *)(APD_UARTBASE + (uart_num*APD_UARTCH_OFST) + APD_UARTMCR_OFST) &= ~bdata;
}

/******************************************************************************
@@
@@ [Name]       : apd_UARTSetIntrReg
@@
@@ [Summary]    : This function sets the given bits in the UART Interrupt
@@                register to 1
@@
@@ [Argument]   : uart_num: Specify the UART channel number
@@                APD_UART_CH0 for channel 0
@@                APD_UART_CH1 for channel 1
@@
@@                bdata: Specify which bits to be set to 1
@@                For example, to set bit 0 and 2, bdata is 0x05
@@
@@ [Return]     : None
@@
@@ [Desc]       : Sets the selected UART Interrupt register's bits to 1
@@
@@ [END]
******************************************************************************/

void apd_UARTSetIntrReg(APD_UART_NUM_TYPE uart_num, unsigned char bdata)
{
    *(volatile unsigned char *)(APD_UARTBASE + (uart_num * APD_UARTCH_OFST) + APD_UARTINTMSK_OFST) |= bdata;
}

/******************************************************************************
@@
@@ [Name]       : apd_UARTClrIntrReg
@@
@@ [Summary]    : This function clears the given bits in the UART Interrupt
@@                register to 0
@@
@@ [Argument]   : uart_num: Specify the UART channel number
@@                APD_UART_CH0 for channel 0
@@                APD_UART_CH1 for channel 1
@@
@@                bdata: Specify which bits to be set to 1
@@                For example, to set bit 0 and 2, bdata is 0x05
@@
@@ [Return]     : None
@@
@@ [Desc]       : Clears the selected UART Interrupt register's bits to 0
@@
@@ [END]
******************************************************************************/

void apd_UARTClrIntrReg(APD_UART_NUM_TYPE uart_num, unsigned char bdata)
{
    *(volatile unsigned char *)(APD_UARTBASE + (uart_num * APD_UARTCH_OFST) + APD_UARTINTMSK_OFST) &= ~bdata;
}

/******************************************************************************
@@
@@ [Name]       : apd_UARTReadFLG
@@
@@ [Summary]    : This function reads the contents of UART Flag register
@@
@@ [Argument]   : uart_num: Specify the UART channel number
@@                APD_UART_CH0 for channel 0
@@                APD_UART_CH1 for channel 1
@@
@@ [Return]     : Contents of UART Flag register
@@
@@ [Desc]       : Reads and returns the contents of UART Flag register for the
@@                specified UART channel
@@
@@ [END]
******************************************************************************/

unsigned char apd_UARTReadFLG (APD_UART_NUM_TYPE uart_num)
{
    return (*(volatile unsigned char *)(APD_UARTBASE + (uart_num*APD_UARTCH_OFST) + APD_UARTFLG_OFST));
}

/******************************************************************************
@@
@@ [Name]       : apd_UARTReadIntr
@@
@@ [Summary]    : This function reads the contents of the UART Interrupt register
@@
@@ [Argument]   : uart_num: Specify the UART channel number
@@                APD_UART_CH0 for channel 0
@@                APD_UART_CH1 for channel 1
@@
@@ [Return]     : Contents of UART Interrupt register
@@
@@ [Desc]       : Reads and returns the contents of UART Interrupt register for the
@@                specified UART channel
@@
@@ [END]
******************************************************************************/

unsigned char apd_UARTReadIntr (APD_UART_NUM_TYPE uart_num)
{
    return(*(volatile unsigned char *)(APD_UARTBASE + (uart_num*APD_UARTCH_OFST) + APD_UARTINTR_OFST));
}

/******************************************************************************
@@
@@ [Name]       : apd_UARTReadRxStatus
@@
@@ [Summary]    : This function reads the contents of the UART Received Status
@@                register
@@
@@ [Argument]   : uart_num: Specify the UART channel number
@@                APD_UART_CH0 for channel 0
@@                APD_UART_CH1 for channel 1
@@
@@ [Return]     : Contents of Receive Status register
@@
@@ [Desc]       : Reads and returns the contents of UART Receive Status register
@@                for the specified UART channel
@@
@@ [END]
******************************************************************************/

unsigned char apd_UARTReadRxStatus(APD_UART_NUM_TYPE uart_num)
{
    return ( *(volatile unsigned char *)(APD_UARTBASE + (uart_num*APD_UARTCH_OFST) + APD_UARTRXSTAT_OFST));
}

/******************************************************************************
@@
@@ [Name]       : apd_UARTSIRDisable
@@
@@ [Summary]    : This function disables the specified SIR protocol
@@
@@ [Argument]   : uart_num: Specify the UART channel number
@@                APD_UART_CH0 for channel 0
@@                APD_UART_CH1 for channel 1
@@
@@ [Return]     : None
@@
@@ [Desc]       : Disables the SIR protocol as specified in the argument
@@
@@ [END]
******************************************************************************/

void apd_UARTSIRDisable(APD_UART_NUM_TYPE uart_num)
{
    unsigned long control_reg;

    control_reg = APD_UARTBASE + (uart_num*APD_UARTCH_OFST) + APD_UARTCON_OFST;

    *(volatile unsigned char *)control_reg &= ~APD_UARTCON_SIREN;
}

/******************************************************************************
@@
@@ [Name]       : apd_UARTSIREnable
@@
@@ [Summary]    : This function enables the specified SIR protocol
@@
@@ [Argument]   : uart_num: Specify the UART channel number
@@                APD_UART_CH0 for channel 0
@@                APD_UART_CH1 for channel 1
@@
@@ [Return]     : None
@@
@@ [Desc]       : Enables the SIR protocol as specified in the argument
@@
@@ [END]
******************************************************************************/

void apd_UARTSIREnable(APD_UART_NUM_TYPE uart_num)
{
    unsigned long control_reg;

    control_reg = APD_UARTBASE + (uart_num*APD_UARTCH_OFST) + APD_UARTCON_OFST;

    *(volatile unsigned char *)control_reg |= APD_UARTCON_SIREN;
}

/******************************************************************************
@@
@@ [Name]       : apd_UARTSetIRTXM
@@
@@ [Summary]    : This function represent the zero bit as a pulse which is
@@                3.5 times the period of the CLK2MHz input signal.
@@
@@ [Argument]   : uart_num: Specify the UART channel number
@@                APD_UART_CH0 for channel 0
@@                APD_UART_CH1 for channel 1
@@
@@ [Return]     : None
@@
@@ [Desc]       : IrDA Tx mode bit. If '1', each zero bit is represented as
@@                a pulse which is 3.5 times the period of the CLK2MHz input signal.
@@
@@ [END]
******************************************************************************/

void apd_UARTSetIRTXM(APD_UART_NUM_TYPE uart_num)
{
    unsigned long control_reg;

    control_reg = APD_UARTBASE + (uart_num*APD_UARTCH_OFST) + APD_UARTCON_OFST;

    *(volatile unsigned char *)control_reg |= APD_UARTCON_IRTXM;
}

/******************************************************************************
@@
@@ [Name]       : apd_UARTClearIRTXM
@@
@@ [Summary]    : This function represent the zero bit as a pulse of width
@@                3/16th of the bit rate period
@@
@@ [Argument]   : uart_num: Specify the UART channel number
@@                APD_UART_CH0 for channel 0
@@                APD_UART_CH1 for channel 1
@@
@@ [Return]     : None
@@
@@ [Desc]       : IrDA Tx mode bit. If '0', each zero bit transmitted is
@@                represented as a pulse of width 3/16th of the bit rate period
@@
@@ [END]
******************************************************************************/

void apd_UARTClearIRTXM(APD_UART_NUM_TYPE uart_num)
{
    unsigned long control_reg;

    control_reg = APD_UARTBASE + (uart_num*APD_UARTCH_OFST) + APD_UARTCON_OFST;

    *(volatile unsigned char *)control_reg &= ~APD_UARTCON_IRTXM;
}

/******************************************************************************
@@
@@ [Name]       : apd_UARTSetSIRPOL
@@
@@ [Summary]    : This function set the polarity of SIR.
@@
@@ [Argument]   : uart_num: Specify the UART channel number
@@                APD_UART_CH0 for channel 0
@@                APD_UART_CH1 for channel 1
@@
@@ [Return]     : None
@@
@@ [Desc]       : This function set the polarity of SIR. If '1', SIR receive
@@                 signal polarity is positive
@@
@@ [END]
******************************************************************************/

void apd_UARTSetSIRPOL(APD_UART_NUM_TYPE uart_num)
{
    unsigned long control_reg;

    control_reg = APD_UARTBASE + (uart_num*APD_UARTCH_OFST) + APD_UARTCON_OFST;

    *(volatile unsigned char *)control_reg |= APD_UARTCON_SIRPOL;
}

/******************************************************************************
@@
@@ [Name]       : apd_UARTClearSIRPOL
@@
@@ [Summary]    : This function clear the polarity of SIR.
@@
@@ [Argument]   : uart_num: Specify the UART channel number
@@                APD_UART_CH0 for channel 0
@@                APD_UART_CH1 for channel 1
@@
@@ [Return]     : None
@@
@@ [Desc]       : This function clear the polarity of SIR.
@@
@@ [END]
******************************************************************************/

void apd_UARTClearSIRPOL(APD_UART_NUM_TYPE uart_num)
{
    unsigned long control_reg;

    control_reg = APD_UARTBASE + (uart_num*APD_UARTCH_OFST) + APD_UARTCON_OFST;

    *(volatile unsigned char *)control_reg &= ~APD_UARTCON_SIRPOL;
}

/******************************************************************************
@@
@@ [Name]       : apd_UARTERINTDisable
@@
@@ [Summary]    : This function disables the error interrupt of the specified UART
@@
@@ [Argument]   : uart_num: Specify the UART channel number
@@                APD_UART_CH0 for channel 0
@@                APD_UART_CH1 for channel 1
@@
@@ [Return]     : None
@@
@@ [Desc]       : This function disables the error interrupt of the specified UART
@@
@@ [END]
******************************************************************************/

void apd_UARTERINTDisable(APD_UART_NUM_TYPE uart_num)
{
    unsigned long control_reg;

    control_reg = APD_UARTBASE + (uart_num*APD_UARTCH_OFST) + APD_UARTCON_OFST;

    *(volatile unsigned char *)control_reg &= ~APD_UARTCON_ERINTEN;
}

/******************************************************************************
@@
@@ [Name]       : apd_UARTERINTEnable
@@
@@ [Summary]    : This function enables the error interrupt of the specified UART
@@
@@ [Argument]   : uart_num: Specify the UART channel number
@@                APD_UART_CH0 for channel 0
@@                APD_UART_CH1 for channel 1
@@
@@ [Return]     : None
@@
@@ [Desc]       : Enables the error interrupt as specified in the argument
@@
@@ [END]
******************************************************************************/

void apd_UARTERINTEnable(APD_UART_NUM_TYPE uart_num)
{
    unsigned long control_reg;

    control_reg = APD_UARTBASE + (uart_num*APD_UARTCH_OFST) + APD_UARTCON_OFST;

    *(volatile unsigned char *)control_reg |= APD_UARTCON_ERINTEN;
}
/******************************************************************************
	Sio open 
uart_num:       APD_UART_CH0 for channel 0
                APD_UART_CH1 for channel 1
int_src:       	APD_INTC_UART0 for UART channel 0 interrupt
                APD_INTC_UART1 for UART channel 1 interrupt
******************************************************************************/
void apd_SIOOpen(APD_UART_NUM_TYPE uart_num,unsigned long interrupt_src)
{
	apd_INTCEnableIRQ(interrupt_src);
	apd_UARTEnable(uart_num);
	apd_UARTEnableRxIntr(uart_num);
//	apd_UARTEnableTxIntr(uart_num);
	
}
/******************************************************************************
	Sio close
uart_num:       APD_UART_CH0 for channel 0
                APD_UART_CH1 for channel 1
int_src:       	APD_INTC_UART0 for UART channel 0 interrupt
                APD_INTC_UART1 for UART channel 1 interrupt

******************************************************************************/
void apd_SIOClose(APD_UART_NUM_TYPE uart_num,unsigned long interrupt_src)
{
	apd_UARTDisableRxIntr(uart_num);
	apd_INTCDisableIRQ(interrupt_src);
	apd_UARTDisable(uart_num);
}
/******************************************************************************
	Sio read
uart_num:       APD_UART_CH0 for channel 0
                APD_UART_CH1 for channel 1

******************************************************************************/
unsigned char apd_SIORead(APD_UART_NUM_TYPE uart_num)
{
	return (*( volatile APD_USHORT *)(APD_UARTBASE + (uart_num * APD_UARTCH_OFST) + APD_UARTDR_OFST));
}
/******************************************************************************
	Sio write
uart_num:       APD_UART_CH0 for channel 0
                APD_UART_CH1 for channel 1
txdata:		data to transmit
******************************************************************************/
void apd_SIOWrite(APD_UART_NUM_TYPE uart_num,unsigned char txdata)
{
    *(volatile APD_USHORT *)(APD_UARTBASE + (uart_num*APD_UARTCH_OFST) + APD_UARTDR_OFST) = txdata;
}