You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
59 lines
2.0 KiB
59 lines
2.0 KiB
/*
|
|
* Copyright (C) 2016 The Android Open Source Project
|
|
*
|
|
* Licensed under the Apache License, Version 2.0 (the "License");
|
|
* you may not use this file except in compliance with the License.
|
|
* You may obtain a copy of the License at
|
|
*
|
|
* http://www.apache.org/licenses/LICENSE-2.0
|
|
*
|
|
* Unless required by applicable law or agreed to in writing, software
|
|
* distributed under the License is distributed on an "AS IS" BASIS,
|
|
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
* See the License for the specific language governing permissions and
|
|
* limitations under the License.
|
|
*/
|
|
|
|
#ifndef _I2C_H_
|
|
#define _I2C_H_
|
|
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif
|
|
|
|
#include <stdint.h>
|
|
#include <stdbool.h>
|
|
#include <stddef.h>
|
|
|
|
typedef void (*I2cCallbackF)(void *cookie, size_t tx, size_t rx, int err);
|
|
|
|
int i2cMasterRequest(uint32_t busId, uint32_t speedInHz);
|
|
int i2cMasterRelease(uint32_t busId);
|
|
int i2cMasterTxRx(uint32_t busId, uint32_t addr, const void *txBuf, size_t txSize,
|
|
void *rxBuf, size_t rxSize, I2cCallbackF callback, void *cookie);
|
|
static inline int i2cMasterTx(uint32_t busId, uint32_t addr,
|
|
const void *txBuf, size_t txSize, I2cCallbackF callback, void *cookie)
|
|
{
|
|
return i2cMasterTxRx(busId, addr, txBuf, txSize, NULL, 0, callback, cookie);}
|
|
static inline int i2cMasterRx(uint32_t busId, uint32_t addr,
|
|
void *rxBuf, size_t rxSize, I2cCallbackF callback, void *cookie)
|
|
{
|
|
return i2cMasterTxRx(busId, addr, NULL, 0, rxBuf, rxSize, callback, cookie);
|
|
}
|
|
|
|
int i2cSlaveRequest(uint32_t busId, uint32_t addr);
|
|
int i2cSlaveRelease(uint32_t busId);
|
|
|
|
void i2cSlaveEnableRx(uint32_t busId, void *rxBuf, size_t rxSize,
|
|
I2cCallbackF callback, void *cookie);
|
|
int i2cSlaveTxPreamble(uint32_t busId, uint8_t byte,
|
|
I2cCallbackF callback, void *cookie);
|
|
int i2cSlaveTxPacket(uint32_t busId, const void *txBuf, size_t txSize,
|
|
I2cCallbackF callback, void *cookie);
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
|
|
#endif /* _I2C_H_ */
|