126 lines
4.7 KiB
C
126 lines
4.7 KiB
C
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/*
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* @brief LPC8xx I2C ROM API declarations and functions
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*
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* @note
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* Copyright(C) NXP Semiconductors, 2012
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* All rights reserved.
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*
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* @par
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* Software that is described herein is for illustrative purposes only
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* which provides customers with programming information regarding the
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* LPC products. This software is supplied "AS IS" without any warranties of
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* any kind, and NXP Semiconductors and its licensor disclaim any and
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* all warranties, express or implied, including all implied warranties of
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* merchantability, fitness for a particular purpose and non-infringement of
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* intellectual property rights. NXP Semiconductors assumes no responsibility
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* or liability for the use of the software, conveys no license or rights under any
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* patent, copyright, mask work right, or any other intellectual property rights in
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* or to any products. NXP Semiconductors reserves the right to make changes
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* in the software without notification. NXP Semiconductors also makes no
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* representation or warranty that such application will be suitable for the
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* specified use without further testing or modification.
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*
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* @par
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* Permission to use, copy, modify, and distribute this software and its
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* documentation is hereby granted, under NXP Semiconductors' and its
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* licensor's relevant copyrights in the software, without fee, provided that it
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* is used in conjunction with NXP Semiconductors microcontrollers. This
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* copyright, permission, and disclaimer notice must appear in all copies of
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* this code.
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*/
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#ifndef __ROM_I2C_8XX_H_
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#define __ROM_I2C_8XX_H_
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#ifdef __cplusplus
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extern "C" {
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#endif
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/** @defgroup CHIP_I2CROM_8XX CHIP: LPC8xx I2C ROM API declarations and functions
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* @ingroup CHIP_8XX_Drivers
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* @{
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*/
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/**
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* @brief LPC8xx I2C ROM driver handle structure
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*/
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typedef void *I2C_HANDLE_T;
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/**
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* @brief LPC8xx I2C ROM driver callback function
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*/
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typedef void (*I2C_CALLBK_T)(uint32_t err_code, uint32_t n);
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/**
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* LPC8xx I2C ROM driver parameter structure
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*/
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typedef struct I2C_PARAM {
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uint32_t num_bytes_send; /*!< No. of bytes to send */
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uint32_t num_bytes_rec; /*!< No. of bytes to receive */
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uint8_t *buffer_ptr_send; /*!< Pointer to send buffer */
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uint8_t *buffer_ptr_rec; /*!< Pointer to receive buffer */
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I2C_CALLBK_T func_pt; /*!< Callback function */
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uint8_t stop_flag; /*!< Stop flag */
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uint8_t dummy[3];
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} I2C_PARAM_T;
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/**
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* LPC8xx I2C ROM driver result structure
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*/
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typedef struct I2C_RESULT {
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uint32_t n_bytes_sent; /*!< No. of bytes sent */
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uint32_t n_bytes_recd; /*!< No. of bytes received */
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} I2C_RESULT_T;
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/**
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* LPC8xx I2C ROM driver modes enum
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*/
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typedef enum CHIP_I2C_MODE {
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IDLE, /*!< IDLE state */
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MASTER_SEND, /*!< Master send state */
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MASTER_RECEIVE, /*!< Master Receive state */
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SLAVE_SEND, /*!< Slave send state */
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SLAVE_RECEIVE /*!< Slave receive state */
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} CHIP_I2C_MODE_T;
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/**
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* LPC8xx I2C ROM driver APIs structure
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*/
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typedef struct I2CD_API {
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/*!< Interrupt Support Routine */
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void (*i2c_isr_handler)(I2C_HANDLE_T *handle);
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/*!< MASTER functions */
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ErrorCode_t (*i2c_master_transmit_poll)(I2C_HANDLE_T *handle, I2C_PARAM_T *param, I2C_RESULT_T *result);
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ErrorCode_t (*i2c_master_receive_poll)(I2C_HANDLE_T *handle, I2C_PARAM_T *param, I2C_RESULT_T *result);
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ErrorCode_t (*i2c_master_tx_rx_poll)(I2C_HANDLE_T *handle, I2C_PARAM_T *param, I2C_RESULT_T *result);
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ErrorCode_t (*i2c_master_transmit_intr)(I2C_HANDLE_T *handle, I2C_PARAM_T *param, I2C_RESULT_T *result);
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ErrorCode_t (*i2c_master_receive_intr)(I2C_HANDLE_T *handle, I2C_PARAM_T *param, I2C_RESULT_T *result);
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ErrorCode_t (*i2c_master_tx_rx_intr)(I2C_HANDLE_T *handle, I2C_PARAM_T *param, I2C_RESULT_T *result);
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/*!< SLAVE functions */
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ErrorCode_t (*i2c_slave_receive_poll)(I2C_HANDLE_T *handle, I2C_PARAM_T *param, I2C_RESULT_T *result);
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ErrorCode_t (*i2c_slave_transmit_poll)(I2C_HANDLE_T *handle, I2C_PARAM_T *param, I2C_RESULT_T *result);
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ErrorCode_t (*i2c_slave_receive_intr)(I2C_HANDLE_T *handle, I2C_PARAM_T *param, I2C_RESULT_T *result);
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ErrorCode_t (*i2c_slave_transmit_intr)(I2C_HANDLE_T *handle, I2C_PARAM_T *param, I2C_RESULT_T *result);
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ErrorCode_t (*i2c_set_slave_addr)(I2C_HANDLE_T *handle, uint32_t slave_addr_0_3, uint32_t slave_mask_0_3);
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/*!< OTHER support functions */
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uint32_t (*i2c_get_mem_size)(void);
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I2C_HANDLE_T * (*i2c_setup)( uint32_t i2c_base_addr, uint32_t * start_of_ram);
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ErrorCode_t (*i2c_set_bitrate)(I2C_HANDLE_T *handle, uint32_t p_clk_in_hz, uint32_t bitrate_in_bps);
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uint32_t (*i2c_get_firmware_version)(void);
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CHIP_I2C_MODE_T (*i2c_get_status)(I2C_HANDLE_T *handle);
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ErrorCode_t (*i2c_set_timeout)(I2C_HANDLE_T *handle, uint32_t timeout);
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} I2CD_API_T;
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/**
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* @}
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*/
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#ifdef __cplusplus
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}
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#endif
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#endif /* __ROM_I2C_8XX_H_ */
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