109 lines
2.6 KiB
C
109 lines
2.6 KiB
C
/*
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* Copyright (C) Cvitek Co., Ltd. 2019-2020. All rights reserved.
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*
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* File Name: include/peri.h
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* Description:
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* peripheral includes i2c for sns and reg for isp.
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*/
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#ifndef __PERI_H__
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#define __PERI_H__
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#ifdef __cplusplus
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extern "C" {
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#endif /* End of #ifdef __cplusplus */
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/* This function must be called to initialize the I2C master interface on the respective hardware pins.
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*
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* @i2c_bus: id of the i2c bus
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* @slave_addr: slave addr of the i2c device
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*/
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int i2cInit(uint8_t i2c_bus, uint8_t slave_addr);
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/* This function must be called to release resource.
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*
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*/
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void i2cExit(void);
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/* I2C Read
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*
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* @addr: reg address
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* @addr_nbytes: number of bytes of reg address. 2 for 16-bit;1 for 8-bit address.
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* @buffer: Pointer to the buffer where the data bytes that are received will be written to
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* @nbytes: Number of bytes to receive
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*
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* @return: Zero on success
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*/
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int i2cRead(uint16_t addr, unsigned int addr_nbytes, uint8_t *buffer,
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unsigned int data_nbytes);
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/* I2C Write
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*
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* @addr: reg address
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* @addr_nbytes: number of bytes of reg address. 2 for 16-bit;1 for 8-bit address.
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* @buffer: Pointer to the buffer that holds data bytes to send
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* @nbytes: Number of bytes to send
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*
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* @return: Zero on success
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*/
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int i2cWrite(uint16_t addr, unsigned int addr_nbytes, uint8_t *buffer,
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unsigned int data_nbytes);
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/* This function must be called to initialize the reg access.
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*
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*/
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int regInit(void);
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/* This function must be called to release resource.
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*
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*/
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int regExit(void);
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/* REG Read
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*
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* @addr: reg address(32bit)
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*
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* @return: Zero on success
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*/
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uint32_t regRead(uint32_t addr);
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/* REG Write
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*
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* @addr: reg address(32bit)
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* @data: data to be writen.
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*
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*/
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void regWrite(uint32_t addr, uint32_t data);
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/* REG Write with mask
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*
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* @addr: reg address(32bit)
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* @data: data to be writen.
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* @mask: only masked bits will be updated.
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*
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*/
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void regWriteMask(uint32_t addr, uint32_t data, uint32_t mask);
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/* REG Read
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*
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* @addr: reg address(32bit)
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* @buffer: Pointer to the buffer where the data bytes that are received will be written to
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* @ndws: Number of DWORDs to receive
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*
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*/
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void regReadBurst(uint32_t addr, uint32_t *buffer, unsigned int ndws);
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/* REG Write
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*
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* @addr: reg address(32bit)
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* @buffer: Pointer to the buffer that holds data bytes to send
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* @ndws: Number of DWORDs to send
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*
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*/
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void regWriteBurst(uint32_t addr, uint32_t *buffer, unsigned int ndws);
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#ifdef __cplusplus
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}
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#endif /* End of #ifdef __cplusplus */
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#endif /*__PERI_H__ */
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