rt-thread/bsp/efm32/graphics/dmd/ssd2119/dmdif_ssd2119_spi.h

 /*************************************************************************//**
 * @file dmdif_ssd2119_spi.h
 * @brief Dot matrix display SSD2119 interface using EBI
 * @author Energy Micro AS
 ******************************************************************************
 * @section License
 * <b>(C) Copyright 2012 Energy Micro AS, http://www.energymicro.com</b>
 ******************************************************************************
 *
 * Permission is granted to anyone to use this software for any purpose,
 * including commercial applications, and to alter it and redistribute it
 * freely, subject to the following restrictions:
 *
 * 1. The origin of this software must not be misrepresented; you must not
 *    claim that you wrote the original software.
 * 2. Altered source versions must be plainly marked as such, and must not be
 *    misrepresented as being the original software.
 * 3. This notice may not be removed or altered from any source distribution.
 * 4. The source and compiled code may only be used on Energy Micro "EFM32"
 *    microcontrollers and "EFR4" radios.
 *
 * DISCLAIMER OF WARRANTY/LIMITATION OF REMEDIES: Energy Micro AS has no
 * obligation to support this Software. Energy Micro AS is providing the
 * Software "AS IS", with no express or implied warranties of any kind,
 * including, but not limited to, any implied warranties of merchantability
 * or fitness for any particular purpose or warranties against infringement
 * of any proprietary rights of a third party.
 *
 * Energy Micro AS will not be liable for any consequential, incidental, or
 * special damages, or any other relief, or for any claim by any third party,
 * arising from your use of this Software.
 *
 *****************************************************************************/

#ifndef __DMDIF_SSD2119_SPI_H_
#define __DMDIF_SSD2119_SPI_H_

#include <stdint.h>

/* Module Prototypes */
EMSTATUS DMDIF_init(uint32_t cmdRegAddr, uint32_t dataRegAddr);
EMSTATUS DMDIF_writeReg(uint8_t reg, uint16_t data);
uint16_t DMDIF_readDeviceCode(void);
EMSTATUS DMDIF_prepareDataAccess(void);
EMSTATUS DMDIF_writeData(uint32_t data);
uint32_t DMDIF_readData(void);

#endif