lib_at91rm9200.c

该源码是AT91RM9200处理器的loader文件

//*----------------------------------------------------------------------------
//*         ATMEL Microcontroller Software Support  -  ROUSSET  -
//*----------------------------------------------------------------------------
//* The software is delivered "AS IS" without warranty or condition of any
//* kind, either express, implied or statutory. This includes without
//* limitation any warranty or condition with respect to merchantability or
//* fitness for any particular purpose, or against the infringements of
//* intellectual property rights of others.
//*----------------------------------------------------------------------------
//* File Name           : lib_AT91RM9200.h
//* Object              : AT91RM9200 d functions
//* Generated           : AT91 SW Application Group  02/07/2003 (11:29:43)
//*
//* CVS Reference       : /lib_pdc.h/1.2/Tue Jul 02 12:29:40 2002//
//* CVS Reference       : /lib_dbgu.h/1.1/Fri Jan 31 12:15:24 2003//
//* CVS Reference       : /lib_rtc_1245d.h/1.1/Fri Jan 31 12:15:58 2003//
//* CVS Reference       : /lib_ssc.h/1.4/Fri Jan 31 12:16:12 2003//
//* CVS Reference       : /lib_spi_AT91RMxxxx.h/1.2/Fri Jan 31 12:16:26 2003//
//* CVS Reference       : /lib_tc_1753b.h/1.1/Fri Jan 31 12:17:10 2003//
//* CVS Reference       : /lib_pmc.h/1.3/Thu Nov 14 07:40:46 2002//
//* CVS Reference       : /lib_pio_1321c.h/1.4/Thu Nov 21 15:03:14 2002//
//* CVS Reference       : /lib_twi.h/1.2/Fri Jan 31 12:16:38 2003//
//* CVS Reference       : /lib_usart.h/1.5/Thu Nov 21 16:01:54 2002//
//* CVS Reference       : /lib_mci.h/1.2/Wed Nov 20 14:18:56 2002//
//* CVS Reference       : /lib_aic.h/1.3/Fri Jul 12 07:46:12 2002//
//* CVS Reference       : /lib_udp.h/1.3/Fri Jan 31 12:16:52 2003//
//* CVS Reference       : /lib_st.h/1.4/Fri Jan 31 10:43:12 2003//
//*----------------------------------------------------------------------------
#include "main.h"

/* *****************************************************************************
                SOFTWARE API FOR PDC
   ***************************************************************************** */
//*----------------------------------------------------------------------------
//* \fn    AT91F_PDC_SetNextRx
//* \brief Set the next receive transfer descriptor
//*----------------------------------------------------------------------------
 void AT91F_PDC_SetNextRx (
	AT91PS_PDC pPDC,     // \arg pointer to a PDC controller
	char *address,       // \arg address to the next bloc to be received
	unsigned int bytes)  // \arg number of bytes to be received
{
	pPDC->PDC_RNPR = (unsigned int) address;
	pPDC->PDC_RNCR = bytes;
}

//*----------------------------------------------------------------------------
//* \fn    AT91F_PDC_SetNextTx
//* \brief Set the next transmit transfer descriptor
//*----------------------------------------------------------------------------
 void AT91F_PDC_SetNextTx (
	AT91PS_PDC pPDC,       // \arg pointer to a PDC controller
	char *address,         // \arg address to the next bloc to be transmitted
	unsigned int bytes)    // \arg number of bytes to be transmitted
{
	pPDC->PDC_TNPR = (unsigned int) address;
	pPDC->PDC_TNCR = bytes;
}

//*----------------------------------------------------------------------------
//* \fn    AT91F_PDC_SetRx
//* \brief Set the receive transfer descriptor
//*----------------------------------------------------------------------------
 void AT91F_PDC_SetRx (
	AT91PS_PDC pPDC,       // \arg pointer to a PDC controller
	char *address,         // \arg address to the next bloc to be received
	unsigned int bytes)    // \arg number of bytes to be received
{
	pPDC->PDC_RPR = (unsigned int) address;
	pPDC->PDC_RCR = bytes;
}

//*----------------------------------------------------------------------------
//* \fn    AT91F_PDC_SetTx
//* \brief Set the transmit transfer descriptor
//*----------------------------------------------------------------------------
 void AT91F_PDC_SetTx (
	AT91PS_PDC pPDC,       // \arg pointer to a PDC controller
	char *address,         // \arg address to the next bloc to be transmitted
	unsigned int bytes)    // \arg number of bytes to be transmitted
{
	pPDC->PDC_TPR = (unsigned int) address;
	pPDC->PDC_TCR = bytes;
}

//*----------------------------------------------------------------------------
//* \fn    AT91F_PDC_EnableTx
//* \brief Enable transmit
//*----------------------------------------------------------------------------
 void AT91F_PDC_EnableTx (
	AT91PS_PDC pPDC )       // \arg pointer to a PDC controller
{
	pPDC->PDC_PTCR = AT91C_PDC_TXTEN;
}

//*----------------------------------------------------------------------------
//* \fn    AT91F_PDC_EnableRx
//* \brief Enable receive
//*----------------------------------------------------------------------------
 void AT91F_PDC_EnableRx (
	AT91PS_PDC pPDC )       // \arg pointer to a PDC controller
{
	pPDC->PDC_PTCR = AT91C_PDC_RXTEN;
}

//*----------------------------------------------------------------------------
//* \fn    AT91F_PDC_DisableTx
//* \brief Disable transmit
//*----------------------------------------------------------------------------
 void AT91F_PDC_DisableTx (
	AT91PS_PDC pPDC )       // \arg pointer to a PDC controller
{
	pPDC->PDC_PTCR = AT91C_PDC_TXTDIS;
}

//*----------------------------------------------------------------------------
//* \fn    AT91F_PDC_DisableRx
//* \brief Disable receive
//*----------------------------------------------------------------------------
 void AT91F_PDC_DisableRx (
	AT91PS_PDC pPDC )       // \arg pointer to a PDC controller
{
	pPDC->PDC_PTCR = AT91C_PDC_RXTDIS;
}

//*----------------------------------------------------------------------------
//* \fn    AT91F_PDC_IsTxEmpty
//* \brief Test if the current transfer descriptor has been sent
//*----------------------------------------------------------------------------
 int AT91F_PDC_IsTxEmpty ( // \return return 1 if transfer is complete
	AT91PS_PDC pPDC )       // \arg pointer to a PDC controller
{
	return !(pPDC->PDC_TCR);
}

//*----------------------------------------------------------------------------
//* \fn    AT91F_PDC_IsNextTxEmpty
//* \brief Test if the next transfer descriptor has been moved to the current td
//*----------------------------------------------------------------------------
 int AT91F_PDC_IsNextTxEmpty ( // \return return 1 if transfer is complete
	AT91PS_PDC pPDC )       // \arg pointer to a PDC controller
{
	return !(pPDC->PDC_TNCR);
}

//*----------------------------------------------------------------------------
//* \fn    AT91F_PDC_IsRxEmpty
//* \brief Test if the current transfer descriptor has been filled
//*----------------------------------------------------------------------------
 int AT91F_PDC_IsRxEmpty ( // \return return 1 if transfer is complete
	AT91PS_PDC pPDC )       // \arg pointer to a PDC controller
{
	return !(pPDC->PDC_RCR);
}

//*----------------------------------------------------------------------------
//* \fn    AT91F_PDC_IsNextRxEmpty
//* \brief Test if the next transfer descriptor has been moved to the current td
//*----------------------------------------------------------------------------
 int AT91F_PDC_IsNextRxEmpty ( // \return return 1 if transfer is complete
	AT91PS_PDC pPDC )       // \arg pointer to a PDC controller
{
	return !(pPDC->PDC_RNCR);
}

//*----------------------------------------------------------------------------
//* \fn    AT91F_PDC_Open
//* \brief Open PDC: disable TX and RX reset transfer descriptors, re-enable RX and TX
//*----------------------------------------------------------------------------
 void AT91F_PDC_Open (
	AT91PS_PDC pPDC)       // \arg pointer to a PDC controller
{
    //* Disable the RX and TX PDC transfer requests
	AT91F_PDC_DisableRx(pPDC);
	AT91F_PDC_DisableTx(pPDC);

	//* Reset all Counter register Next buffer first
	AT91F_PDC_SetNextTx(pPDC, (char *) 0, 0);
	AT91F_PDC_SetNextRx(pPDC, (char *) 0, 0);
	AT91F_PDC_SetTx(pPDC, (char *) 0, 0);
	AT91F_PDC_SetRx(pPDC, (char *) 0, 0);

    //* Enable the RX and TX PDC transfer requests
	AT91F_PDC_EnableRx(pPDC);
	AT91F_PDC_EnableTx(pPDC);
}

//*----------------------------------------------------------------------------
//* \fn    AT91F_PDC_Close
//* \brief Close PDC: disable TX and RX reset transfer descriptors
//*----------------------------------------------------------------------------
 void AT91F_PDC_Close (
	AT91PS_PDC pPDC)       // \arg pointer to a PDC controller
{
    //* Disable the RX and TX PDC transfer requests
	AT91F_PDC_DisableRx(pPDC);
	AT91F_PDC_DisableTx(pPDC);

	//* Reset all Counter register Next buffer first
	AT91F_PDC_SetNextTx(pPDC, (char *) 0, 0);
	AT91F_PDC_SetNextRx(pPDC, (char *) 0, 0);
	AT91F_PDC_SetTx(pPDC, (char *) 0, 0);
	AT91F_PDC_SetRx(pPDC, (char *) 0, 0);

}

//*----------------------------------------------------------------------------
//* \fn    AT91F_PDC_SendFrame
//* \brief Close PDC: disable TX and RX reset transfer descriptors
//*----------------------------------------------------------------------------
 unsigned int AT91F_PDC_SendFrame(
	AT91PS_PDC pPDC,
	char *pBuffer,
	unsigned int szBuffer,
	char *pNextBuffer,
	unsigned int szNextBuffer )
{
	if (AT91F_PDC_IsTxEmpty(pPDC)) {
		//* Buffer and next buffer can be initialized
		AT91F_PDC_SetTx(pPDC, pBuffer, szBuffer);
		AT91F_PDC_SetNextTx(pPDC, pNextBuffer, szNextBuffer);
		return 2;
	}
	else if (AT91F_PDC_IsNextTxEmpty(pPDC)) {
		//* Only one buffer can be initialized
		AT91F_PDC_SetNextTx(pPDC, pBuffer, szBuffer);
		return 1;
	}
	else {
		//* All buffer are in use...
		return 0;
	}
}

//*----------------------------------------------------------------------------
//* \fn    AT91F_PDC_ReceiveFrame
//* \brief Close PDC: disable TX and RX reset transfer descriptors
//*----------------------------------------------------------------------------
 unsigned int AT91F_PDC_ReceiveFrame (
	AT91PS_PDC pPDC,
	char *pBuffer,
	unsigned int szBuffer,
	char *pNextBuffer,
	unsigned int szNextBuffer )
{
	if (AT91F_PDC_IsRxEmpty(pPDC)) {
		//* Buffer and next buffer can be initialized
		AT91F_PDC_SetRx(pPDC, pBuffer, szBuffer);
		AT91F_PDC_SetNextRx(pPDC, pNextBuffer, szNextBuffer);
		return 2;
	}
	else if (AT91F_PDC_IsNextRxEmpty(pPDC)) {
		//* Only one buffer can be initialized
		AT91F_PDC_SetNextRx(pPDC, pBuffer, szBuffer);
		return 1;
	}
	else {
		//* All buffer are in use...
		return 0;
	}
}
/* *****************************************************************************
                SOFTWARE API FOR DBGU
   ***************************************************************************** */
//*----------------------------------------------------------------------------
//* \fn    AT91F_DBGU_InterruptEnable
//* \brief Enable DBGU Interrupt
//*----------------------------------------------------------------------------
 void AT91F_DBGU_InterruptEnable(
        AT91PS_DBGU pDbgu,   // \arg  pointer to a DBGU controller
        unsigned int flag) // \arg  dbgu interrupt to be enabled
{
        pDbgu->DBGU_IER = flag;
}

//*----------------------------------------------------------------------------
//* \fn    AT91F_DBGU_InterruptDisable
//* \brief Disable DBGU Interrupt
//*----------------------------------------------------------------------------
 void AT91F_DBGU_InterruptDisable(
        AT91PS_DBGU pDbgu,   // \arg  pointer to a DBGU controller
        unsigned int flag) // \arg  dbgu interrupt to be disabled
{
        pDbgu->DBGU_IDR = flag;
}

//*----------------------------------------------------------------------------
//* \fn    AT91F_DBGU_GetInterruptMaskStatus
//* \brief Return DBGU Interrupt Mask Status
//*----------------------------------------------------------------------------
 unsigned int AT91F_DBGU_GetInterruptMaskStatus( // \return DBGU Interrupt Mask Status
        AT91PS_DBGU pDbgu) // \arg  pointer to a DBGU controller
{
        return pDbgu->DBGU_IMR;
}

//*----------------------------------------------------------------------------
//* \fn    AT91F_DBGU_IsInterruptMasked
//* \brief Test if DBGU Interrupt is Masked 
//*----------------------------------------------------------------------------
 int AT91F_DBGU_IsInterruptMasked(
        AT91PS_DBGU pDbgu,   // \arg  pointer to a DBGU controller
        unsigned int flag) // \arg  flag to be tested
{
        return (AT91F_DBGU_GetInterruptMaskStatus(pDbgu) & flag);
}

/* *****************************************************************************
                SOFTWARE API FOR RTC
   ***************************************************************************** */
//*----------------------------------------------------------------------------
//* \fn    AT91F_RTC_InterruptEnable
//* \brief Enable RTC Interrupt
//*----------------------------------------------------------------------------
 void AT91F_RTC_InterruptEnable(
        AT91PS_RTC pRtc,   // \arg  pointer to a RTC controller
        unsigned int flag) // \arg  RTC interrupt to be enabled
{
        pRtc->RTC_IER = flag;
}

//*----------------------------------------------------------------------------
//* \fn    AT91F_RTC_InterruptDisable
//* \brief Disable RTC Interrupt
//*----------------------------------------------------------------------------
 void AT91F_RTC_InterruptDisable(
        AT91PS_RTC pRtc,   // \arg  pointer to a RTC controller
        unsigned int flag) // \arg  RTC interrupt to be disabled
{
        pRtc->RTC_IDR = flag;
}

//*----------------------------------------------------------------------------
//* \fn    AT91F_RTC_GetInterruptMaskStatus
//* \brief Return RTC Interrupt Mask Status
//*----------------------------------------------------------------------------
 unsigned int AT91F_RTC_GetInterruptMaskStatus( // \return RTC Interrupt Mask Status
        AT91PS_RTC pRtc) // \arg  pointer to a RTC controller
{