100 lines
3.7 KiB
C
100 lines
3.7 KiB
C
|
/*
|
||
|
|
* The MIT License (MIT)
|
||
|
|
*
|
||
|
|
* Copyright (c) 2021 Renesas Electronics Corporation
|
||
|
|
*
|
||
|
|
* Permission is hereby granted, free of charge, to any person obtaining a copy
|
||
|
|
* of this software and associated documentation files (the "Software"), to deal
|
||
|
|
* in the Software without restriction, including without limitation the rights
|
||
|
|
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
||
|
|
* copies of the Software, and to permit persons to whom the Software is
|
||
|
|
* furnished to do so, subject to the following conditions:
|
||
|
|
*
|
||
|
|
* The above copyright notice and this permission notice shall be included in
|
||
|
|
* all copies or substantial portions of the Software.
|
||
|
|
*
|
||
|
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
||
|
|
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
||
|
|
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
||
|
|
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
||
|
|
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
||
|
|
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
|
||
|
|
* THE SOFTWARE.
|
||
|
|
*/
|
||
|
|
|
||
|
|
#ifndef RA_RA_I2C_H_
|
||
|
|
#define RA_RA_I2C_H_
|
||
|
|
|
||
|
|
#include <stdint.h>
|
||
|
|
#include <stdbool.h>
|
||
|
|
|
||
|
|
#define RA_I2C_DEF_TIMEOUT 1000 // 1000 ms
|
||
|
|
#define RA_I2C_TIMEOUT_STOP_CONDITION 100000 // counts
|
||
|
|
#define RA_I2C_TIMEOUT_BUS_BUSY 100000 // counts
|
||
|
|
#define RA_I2C_CLOCK_MAX 1000000 // counts
|
||
|
|
|
||
|
|
typedef enum
|
||
|
|
{
|
||
|
|
RA_I2C_STATUS_Idle = 1,
|
||
|
|
RA_I2C_STATUS_Started = 2,
|
||
|
|
RA_I2C_STATUS_AddrWriteCompleted = 3,
|
||
|
|
RA_I2C_STATUS_DataWriteCompleted = 4,
|
||
|
|
RA_I2C_STATUS_DataSendCompleted = 5,
|
||
|
|
RA_I2C_STATUS_FirstReceiveCompleted = 5,
|
||
|
|
RA_I2C_STATUS_LastReceiveCompleted = 6,
|
||
|
|
RA_I2C_STATUS_Stopped = 7,
|
||
|
|
} xaction_status_t;
|
||
|
|
|
||
|
|
typedef enum
|
||
|
|
{
|
||
|
|
RA_I2C_ERROR_OK = 0,
|
||
|
|
RA_I2C_ERROR_TMOF = 1,
|
||
|
|
RA_I2C_ERROR_AL = 2,
|
||
|
|
RA_I2C_ERROR_NACK = 3,
|
||
|
|
RA_I2C_ERROR_BUSY = 4,
|
||
|
|
} xaction_error_t;
|
||
|
|
|
||
|
|
typedef struct {
|
||
|
|
volatile uint32_t m_bytes_transferred;
|
||
|
|
volatile uint32_t m_bytes_transfer;
|
||
|
|
bool m_fread;
|
||
|
|
uint8_t *buf;
|
||
|
|
void *next;
|
||
|
|
} xaction_unit_t;
|
||
|
|
|
||
|
|
typedef struct {
|
||
|
|
xaction_unit_t *units;
|
||
|
|
uint32_t m_num_of_units;
|
||
|
|
uint32_t m_current;
|
||
|
|
uint32_t m_address;
|
||
|
|
volatile xaction_status_t m_status;
|
||
|
|
xaction_error_t m_error;
|
||
|
|
bool m_stop;
|
||
|
|
} xaction_t;
|
||
|
|
|
||
|
|
bool ra_i2c_find_af_ch(uint32_t scl, uint32_t sda, uint8_t *ch);
|
||
|
|
void ra_i2c_irq_enable(R_IIC0_Type *i2c_inst);
|
||
|
|
void ra_i2c_irq_disable(R_IIC0_Type *i2c_inst);
|
||
|
|
void ra_i2c_priority(R_IIC0_Type *i2c_inst, uint32_t ipl);
|
||
|
|
void ra_i2c_set_baudrate(R_IIC0_Type *i2c_inst, uint32_t baudrate);
|
||
|
|
void ra_i2c_clear_IR(R_IIC0_Type *i2c_inst);
|
||
|
|
void ra_i2c_init(R_IIC0_Type *i2c_inst, uint32_t scl, uint32_t sda, uint32_t baudrate);
|
||
|
|
void ra_i2c_deinit(R_IIC0_Type *i2c_inst);
|
||
|
|
void ra_i2c_read_last_byte(R_IIC0_Type *i2c_inst);
|
||
|
|
void ra_i2c_stop_condition(R_IIC0_Type *i2c_inst);
|
||
|
|
void ra_i2c_abort(R_IIC0_Type *i2c_inst);
|
||
|
|
void ra_i2c_xaction_start(R_IIC0_Type *i2c_inst, xaction_t *xaction, bool repeated_start);
|
||
|
|
void ra_i2c_xaction_stop(void);
|
||
|
|
void ra_i2c_get_clock(uint32_t rateKhz, uint8_t *clockRate, uint8_t *clockRate2);
|
||
|
|
void ra_i2c_xunit_write_byte(R_IIC0_Type *i2c_inst, xaction_unit_t *unit);
|
||
|
|
void ra_i2c_xunit_read_byte(R_IIC0_Type *i2c_inst, xaction_unit_t *unit);
|
||
|
|
void ra_i2c_xunit_init(xaction_unit_t *unit, uint8_t *buf, uint32_t size, bool fread, void *next);
|
||
|
|
void ra_i2c_xaction_init(xaction_t *action, xaction_unit_t *units, uint32_t size, uint32_t address, bool stop);
|
||
|
|
void iic_master_rxi_isr(void);
|
||
|
|
void iic_master_txi_isr(void);
|
||
|
|
void iic_master_tei_isr(void);
|
||
|
|
void iic_master_eri_isr(void);
|
||
|
|
bool ra_i2c_action_execute(R_IIC0_Type *i2c_inst, xaction_t *action, bool repeated_start, uint32_t timeout_ms);
|
||
|
|
|
||
|
|
#endif /* RA_RA_I2C_H_ */
|