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/*-
* Copyright (c) 2006 M. Warner Losh. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* This software is derived from software provide by Kwikbyte who specifically
* disclaimed copyright on the code.
*
* $FreeBSD: release/9.1.0/sys/boot/arm/at91/libat91/lib_AT91RM9200.h 163533 2006-10-20 09:12:05Z imp $
*/
#ifndef __LIBAT91RM9200_H
#define __LIBAT91RM9200_H
#include "at91rm9200.h"
//*----------------------------------------------------------------------------
//* \fn AT91F_PMC_EnablePeriphClock
//* \brief Enable peripheral clock
//*----------------------------------------------------------------------------
static inline void
AT91F_PMC_EnablePeriphClock (
AT91PS_PMC pPMC, // \arg pointer to PMC controller
unsigned int periphIds) // \arg IDs of peripherals to enable
{
pPMC->PMC_PCER = periphIds;
}
/* *****************************************************************************
SOFTWARE API FOR PIO
***************************************************************************** */
//*----------------------------------------------------------------------------
//* \fn AT91F_PIO_CfgPeriph
//* \brief Enable pins to be drived by peripheral
//*----------------------------------------------------------------------------
static inline
void AT91F_PIO_CfgPeriph(
AT91PS_PIO pPio, // \arg pointer to a PIO controller
unsigned int periphAEnable, // \arg PERIPH A to enable
unsigned int periphBEnable) // \arg PERIPH B to enable
{
if (periphAEnable)
pPio->PIO_ASR = periphAEnable;
if (periphBEnable)
pPio->PIO_BSR = periphBEnable;
pPio->PIO_PDR = (periphAEnable | periphBEnable); // Set in Periph mode
}
/* *****************************************************************************
SOFTWARE API FOR MCI
***************************************************************************** */
//* Classic MCI Data Timeout Register Configuration with 1048576 MCK cycles between 2 data transfer
#define AT91C_MCI_DTOR_1MEGA_CYCLES (AT91C_MCI_DTOCYC | AT91C_MCI_DTOMUL)
//* Classic MCI SDCard Register Configuration with 1-bit data bus on slot A
#define AT91C_MCI_MMC_SLOTA (AT91C_MCI_SCDSEL & 0x0)
//* Classic MCI SDCard Register Configuration with 1-bit data bus on slot B
#define AT91C_MCI_MMC_SLOTB (AT91C_MCI_SCDSEL)
//* Classic MCI SDCard Register Configuration with 4-bit data bus on slot A
#define AT91C_MCI_SDCARD_4BITS_SLOTA ( (AT91C_MCI_SCDSEL & 0x0) | AT91C_MCI_SCDBUS )
//* Classic MCI SDCard Register Configuration with 4-bit data bus on slot B
#define AT91C_MCI_SDCARD_4BITS_SLOTB (AT91C_MCI_SCDSEL | AT91C_MCI_SCDBUS)
//*----------------------------------------------------------------------------
//* \fn AT91F_MCI_Configure
//* \brief Configure the MCI
//*----------------------------------------------------------------------------
static inline
void AT91F_MCI_Configure(
AT91PS_MCI pMCI, // \arg pointer to a MCI controller
unsigned int DTOR_register, // \arg Data Timeout Register to be programmed
unsigned int MR_register, // \arg Mode Register to be programmed
unsigned int SDCR_register) // \arg SDCard Register to be programmed
{
//* Reset the MCI
pMCI->MCI_CR = AT91C_MCI_MCIEN | AT91C_MCI_PWSEN;
//* Disable all the interrupts
pMCI->MCI_IDR = 0xFFFFFFFF;
//* Set the Data Timeout Register
pMCI->MCI_DTOR = DTOR_register;
//* Set the Mode Register
pMCI->MCI_MR = MR_register;
//* Set the SDCard Register
pMCI->MCI_SDCR = SDCR_register;
}
//*----------------------------------------------------------------------------
//* \fn AT91F_MCI_CfgPMC
//* \brief Enable Peripheral clock in PMC for MCI
//*----------------------------------------------------------------------------
static inline void
AT91F_MCI_CfgPMC(void)
{
AT91F_PMC_EnablePeriphClock(
AT91C_BASE_PMC, // PIO controller base address
((unsigned int) 1 << AT91C_ID_MCI));
}
//*----------------------------------------------------------------------------
//* \fn AT91F_MCI_CfgPIO
//* \brief Configure PIO controllers to drive MCI signals
//*----------------------------------------------------------------------------
static inline void
AT91F_MCI_CfgPIO(void)
{
// Configure PIO controllers to periph mode
AT91F_PIO_CfgPeriph(
AT91C_BASE_PIOA, // PIO controller base address
((unsigned int) AT91C_PA28_MCCDA ) |
((unsigned int) AT91C_PA29_MCDA0 ) |
((unsigned int) AT91C_PA27_MCCK ), // Peripheral A
0); // Peripheral B
// Configure PIO controllers to periph mode
AT91F_PIO_CfgPeriph(
AT91C_BASE_PIOB, // PIO controller base address
0, // Peripheral A
((unsigned int) AT91C_PB5_MCDA3 ) |
((unsigned int) AT91C_PB3_MCDA1 ) |
((unsigned int) AT91C_PB4_MCDA2 )); // Peripheral B
}
/* *****************************************************************************
SOFTWARE API FOR PDC
***************************************************************************** */
//*----------------------------------------------------------------------------
//* \fn AT91F_PDC_SetNextRx
//* \brief Set the next receive transfer descriptor
//*----------------------------------------------------------------------------
static inline 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
//*----------------------------------------------------------------------------
static inline 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
//*----------------------------------------------------------------------------
static inline 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
//*----------------------------------------------------------------------------
static inline 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
//*----------------------------------------------------------------------------
static inline 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
//*----------------------------------------------------------------------------
static inline 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
//*----------------------------------------------------------------------------
static inline 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
//*----------------------------------------------------------------------------
static inline void
AT91F_PDC_DisableRx(
AT91PS_PDC pPDC ) // \arg pointer to a PDC controller
{
pPDC->PDC_PTCR = AT91C_PDC_RXTDIS;
}
//*----------------------------------------------------------------------------
//* \fn AT91F_PDC_Open
//* \brief Open PDC: disable TX and RX reset transfer descriptors, re-enable RX and TX
//*----------------------------------------------------------------------------
static inline 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);
}
#endif