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/**************************************************************************//**
* @file spi.h
* @brief N9H30 SPI driver header file
*
* @note
* SPDX-License-Identifier: Apache-2.0
* Copyright (C) 2018 Nuvoton Technology Corp. All rights reserved.
*****************************************************************************/
#ifndef __NU_SPI_H__
#define __NU_SPI_H__
#ifdef __cplusplus
extern "C"
{
#endif
/** @addtogroup N9H30_Device_Driver N9H30 Device Driver
@{
*/
/** @addtogroup N9H30_SPI_Driver SPI Driver
@{
*/
/** @addtogroup N9H30_SPI_EXPORTED_CONSTANTS SPI Exported Constants
@{
*/
/// @cond HIDDEN_SYMBOLS
#define CNTRL 0x00 /*!< Control Register Address */
#define DIVIDER 0x04 /*!< Divider Register Address */
#define SSR 0x08 /*!< Slave Select Register Address */
#define RX0 0x10 /*!< Receive Register 0 Address */
#define RX1 0x14 /*!< Receive Register 1 Address */
#define RX2 0x18 /*!< Receive Register 2 Address */
#define RX3 0x1C /*!< Receive Register 3 Address */
#define TX0 0x10 /*!< Transfer Register 0 Address */
#define TX1 0x14 /*!< Transfer Register 1 Address */
#define TX2 0x18 /*!< Transfer Register 2 Address */
#define TX3 0x1C /*!< Transfer Register 3 Address */
#define SPI_INPUT_CLOCK (sysGetClock(SYS_PCLK)*1000000) /* Unit: Hz */
/// @endcond HIDDEN_SYMBOLS
#define SPI_NUMBER 2 /*!< 2 spi interfaces */
#define SPI_NO_ERR 0 /*!< No error */
#define SPI_ERR_NODEV -1 /*!< Wrong device id */
#define SPI_ERR_BUSY -2 /*!< Interface is busy */
#define SPI_ERR_IO -3 /*!< IO control error for not opened interface */
#define SPI_ERR_ARG -4 /*!< Wrong argument in IO control */
#define SPI_IOC_TRIGGER 0 /*!< Trigger SPI interface */
#define SPI_IOC_SET_INTERRUPT 1 /*!< Enable/disable interrupt ,arguments could be \ref SPI_DISABLE_INTERRUPT and \ref SPI_ENABLE_INTERRUPT */
#define SPI_IOC_SET_SPEED 2 /*!< Set SPI clock speed */
#define SPI_IOC_SET_DUAL_QUAD_MODE 3 /*!< Enable/disable Quad/Dual mode ,arguments could be \ref SPI_DISABLE_DUAL_QUAD, \ref SPI_DUAL_MODE, \ref SPI_QUAD_MODE*/
#define SPI_IOC_SET_DUAL_QUAD_DIR 4 /*!< Set Quad/Dual mode direction ,arguments could be \ref SPI_DUAL_QUAD_INPUT, \ref SPI_DUAL_QUAD_OUTPUT */
#define SPI_IOC_SET_LSB_MSB 5 /*!< Set MSB/LSB ,arguments could be \ref SPI_MSB, \ref SPI_LSB */
#define SPI_IOC_SET_TX_NUM 6 /*!< Set transfer number */
#define SPI_IOC_SET_TX_BITLEN 7 /*!< Set transfer bit number */
#define SPI_IOC_SET_MODE 8 /*!< Set SPI mode ,arguments could be \ref SPI_MODE_0, \ref SPI_MODE_1, \ref SPI_MODE_2, \ref SPI_MODE_3 */
#define SPI_IOC_ENABLE_SS 9 /*!< Enable slave select pin */
#define SPI_IOC_DISABLE_SS 10 /*!< Disable slave select pin */
#define SPI_IOC_SET_AUTOSS 11 /*!< Enable/disable auto slave select function ,arguments could be \ref SPI_DISABLE_AUTOSS, \ref SPI_ENABLE_AUTOSS */
#define SPI_IOC_SET_SS_ACTIVE_LEVEL 12 /*!< Set slave select active level ,arguments could be \ref SPI_SS_ACTIVE_LOW, \ref SPI_SS_ACTIVE_HIGH */
#define SPI_DISABLE_INTERRUPT 0 /*!< Disable interrupt */
#define SPI_ENABLE_INTERRUPT 1 /*!< Enable interrupt */
#define SPI_DISABLE_DUAL_QUAD 0 /*!< Disable quad and dual mode */
#define SPI_DUAL_MODE 1 /*!< Enable dual mode */
#define SPI_QUAD_MODE 2 /*!< Enable quad mode */
#define SPI_DUAL_QUAD_INPUT 0 /*!< Set dual/quad mode io direction to input */
#define SPI_DUAL_QUAD_OUTPUT 1 /*!< Set dual/quad mode io direction to output */
#define SPI_MSB 0 /*!< Enable MSB */
#define SPI_LSB 1 /*!< Enable LSB */
#define SPI_MODE_0 0 /*!< Set to SPI mode 0 */
#define SPI_MODE_1 1 /*!< Set to SPI mode 1 */
#define SPI_MODE_2 2 /*!< Set to SPI mode 2 */
#define SPI_MODE_3 3 /*!< Set to SPI mode 3 */
#define SPI_SS_SS0 0 /*!< Select SS0 */
#define SPI_SS_SS1 1 /*!< Select SS1 */
#define SPI_SS_BOTH 2 /*!< Select both SS0/SS1 */
#define SPI_DISABLE_AUTOSS 0 /*!< Disable auto slave select function */
#define SPI_ENABLE_AUTOSS 1 /*!< Enable auto slave select function */
#define SPI_SS_ACTIVE_LOW 0 /*!< Set active level of slave select to low */
#define SPI_SS_ACTIVE_HIGH 1 /*!< Set active level of slave select to high */
/*@}*/ /* end of group N9H30_SPI_EXPORTED_CONSTANTS */
/** @addtogroup N9H30_SPI_EXPORTED_FUNCTIONS SPI Exported Functions
@{
*/
int32_t spiInit(int32_t fd);
int32_t spiIoctl(int32_t fd, uint32_t cmd, uint32_t arg0, uint32_t arg1);
int spiOpen(int32_t fd);
uint8_t spiGetBusyStatus(int32_t fd);
uint32_t spiRead(int32_t fd, uint8_t buff_id);
void spiWrite(int32_t fd, uint8_t buff_id, uint32_t data);
/*@}*/ /* end of group N9H30_SPI_EXPORTED_FUNCTIONS */
/*@}*/ /* end of group N9H30_SPI_Driver */
/*@}*/ /* end of group N9H30_Device_Driver */
#ifdef __cplusplus
}
#endif
#endif //__NU_SPI_H__
/*** (C) COPYRIGHT 2018 Nuvoton Technology Corp. ***/
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