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/**
* @file
*
* @ingroup mpc55xx
*
* @brief Enhanced Direct Memory Access (eDMA).
*/
/*
* Copyright (c) 2008
* Embedded Brains GmbH
* Obere Lagerstr. 30
* D-82178 Puchheim
* Germany
* rtems@embedded-brains.de
*
* The license and distribution terms for this file may be found in the file
* LICENSE in this distribution or at http://www.rtems.com/license/LICENSE.
*/
#ifndef LIBCPU_POWERPC_MPC55XX_EDMA_H
#define LIBCPU_POWERPC_MPC55XX_EDMA_H
#include <stdbool.h>
#include <rtems.h>
#ifdef __cplusplus
extern "C" {
#endif /* __cplusplus */
#define MPC55XX_EDMA_TCD_DEFAULT { \
.SADDR = 0, \
.SMOD = 0, \
.SSIZE = 0x2, \
.SOFF = 4, \
.DADDR = 0, \
.DMOD = 0, \
.DSIZE = 0x2, \
.DOFF = 4, \
.NBYTES = 0, \
.SLAST = 0, \
.CITER = 1, \
.BITER = 1, \
.MAJORLINKCH = 0, \
.CITERE_LINK = 0, \
.BITERE_LINK = 0, \
.MAJORE_LINK = 0, \
.E_SG = 0, \
.DLAST_SGA = 0, \
.D_REQ = 0, \
.BWC = 0, \
.INT_HALF = 0, \
.INT_MAJ = 0, \
.DONE = 0, \
.ACTIVE = 0, \
.START = 0, \
}
#define MPC55XX_EDMA_TCD_ALT_DEFAULT { \
.SADDR = 0, \
.SMOD = 0, \
.SSIZE = 2, \
.DMOD = 0, \
.DSIZE = 2, \
.SOFF = 4, \
.NBYTES = 0, \
.SLAST = 0, \
.DADDR = 0, \
.CITERE_LINK = 0, \
.CITERLINKCH = 0, \
.CITER = 0, \
.DOFF = 4, \
.DLAST_SGA = 0, \
.BITERE_LINK = 0, \
.BITERLINKCH = 0, \
.BITER = 0, \
.BWC = 0, \
.MAJORLINKCH = 0, \
.DONE = 0, \
.ACTIVE = 0, \
.MAJORE_LINK = 0, \
.E_SG = 0, \
.D_REQ = 0, \
.INT_HALF = 0, \
.INT_MAJ = 0, \
.START = 0, \
}
rtems_status_code mpc55xx_edma_init();
rtems_status_code mpc55xx_edma_obtain_channel( int channel, uint32_t *error_status, rtems_id transfer_update);
rtems_status_code mpc55xx_edma_enable_hardware_requests( int channel, bool enable);
rtems_status_code mpc55xx_edma_enable_error_interrupts( int channel, bool enable);
#ifdef __cplusplus
}
#endif /* __cplusplus */
#endif /* LIBCPU_POWERPC_MPC55XX_EDMA_H */
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