dspi.h

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/*
 * 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.org/license/LICENSE.
 */

#ifndef LIBCPU_POWERPC_MPC55XX_DSPI_H
#define LIBCPU_POWERPC_MPC55XX_DSPI_H

#include <rtems/libi2c.h>

#include <mpc55xx/edma.h>

#ifdef __cplusplus
extern "C" {
#endif /* __cplusplus */

struct DSPI_tag;

typedef struct {
  edma_channel_context edma;
  rtems_id id;
} mpc55xx_dspi_edma_entry;

typedef struct {
    rtems_libi2c_bus_t bus;

    unsigned table_index;

    unsigned bus_number;

    volatile struct DSPI_tag *regs;

    bool master;

    union DSPI_PUSHR_tag push_data;

    mpc55xx_dspi_edma_entry edma_transmit;

    mpc55xx_dspi_edma_entry edma_push;

    mpc55xx_dspi_edma_entry edma_receive;

    uint32_t idle_char;

    uint32_t baud;
} mpc55xx_dspi_bus_entry;

#define MPC55XX_DSPI_NUMBER 4

extern mpc55xx_dspi_bus_entry mpc55xx_dspi_bus_table [ /* MPC55XX_DSPI_NUMBER */ ];

#ifdef __cplusplus
}
#endif /* __cplusplus */

#endif /* LIBCPU_POWERPC_MPC55XX_DSPI_H */