1 files changed, 135 insertions, 0 deletions
diff --git a/c/src/lib/libcpu/powerpc/mpc55xx/include/dspi.h b/c/src/lib/libcpu/powerpc/mpc55xx/include/dspi.h
new file mode 100644
index 0000000000..4ad2479851
--- /dev/null
+++ b/c/src/lib/libcpu/powerpc/mpc55xx/include/dspi.h
@@ -0,0 +1,135 @@
+/**
+ * @file
+ *
+ * @ingroup mpc55xx_dspi
+ *
+ * @brief Header file for the LibI2C bus driver for the Deserial Serial Peripheral Interface (DSPI).
+ */
+
+/*
+ * 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.
+ */
+
+/** 
+ * @defgroup mpc55xx_dspi Deserial Serial Peripheral Interface (DSPI)
+ * 
+ * @ingroup mpc55xx
+ */
+
+#ifndef LIBCPU_POWERPC_MPC55XX_DSPI_H
+#define LIBCPU_POWERPC_MPC55XX_DSPI_H
+
+#include <rtems/libi2c.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif /* __cplusplus */
+
+struct DSPI_tag;
+
+/**
+ * @brief LibI2C bus driver entry.
+ */
+typedef struct {
+	/**
+	 * @brief Standard bus driver fields.
+	 */
+	rtems_libi2c_bus_t bus;
+
+	/**
+	 * @brief Index in the bus table: @ref mpc55xx_dspi_bus_table.
+	 */
+	unsigned table_index;
+
+	/**
+	 * @brief Bus number (available after rtems_libi2c_register_bus()).
+	 *
+	 * @note You must set it in the initialization code after the bus registration.
+	 */
+	unsigned bus_number;
+
+	/**
+	 * @brief Hardware registers.
+	 */
+	volatile struct DSPI_tag *regs;
+
+	/**
+	 * @brief Selects SPI master or slave mode.
+	 */
+	int master;
+
+	/**
+	 * @brief Data for the Push Register.
+	 */
+	union DSPI_PUSHR_tag push_data;
+
+	/**
+	 * @brief eDMA channel for transmission.
+	 *
+	 * The channel is fixed to particular DSPI.
+	 */
+	int edma_channel_transmit;
+
+	/**
+	 * @brief eDMA channel to generate the push data.
+	 *
+	 * You can choose any available channel.
+	 */
+	int edma_channel_push;
+
+	/**
+	 * @brief eDMA channel for receiving.
+	 *
+	 * The channel is fixed to particular DSPI.
+	 */
+	int edma_channel_receive;
+
+	/**
+	 * @brief Semaphore ID for a transmit update.
+	 */
+	rtems_id edma_channel_transmit_update;
+
+	/**
+	 * @brief Semaphore ID for a receive update.
+	 */
+	rtems_id edma_channel_receive_update;
+
+	/**
+	 * @brief Transmit error status.
+	 */
+	uint32_t edma_channel_transmit_error;
+
+	/**
+	 * @brief Receive error status.
+	 */
+	uint32_t edma_channel_receive_error;
+
+	/**
+	 * @brief Idle character transmitted in read only mode.
+	 */
+	uint32_t idle_char;
+} mpc55xx_dspi_bus_entry;
+
+/**
+ * @brief Number of DSPIs.
+ */
+#define MPC55XX_DSPI_NUMBER 4
+
+/**
+ * @brief Table with bus driver entries.
+ */
+extern mpc55xx_dspi_bus_entry mpc55xx_dspi_bus_table [ /* MPC55XX_DSPI_NUMBER */ ];
+
+#ifdef __cplusplus
+}
+#endif /* __cplusplus */
+
+#endif /* LIBCPU_POWERPC_MPC55XX_DSPI_H */