mirror of
https://bitbucket.org/librepilot/librepilot.git
synced 2024-12-04 12:24:11 +01:00
50215e75c6
git-svn-id: svn://svn.openpilot.org/OpenPilot/trunk@296 ebee16cc-31ac-478f-84a7-5cbb03baadba
65 lines
2.3 KiB
C
65 lines
2.3 KiB
C
/**
|
|
******************************************************************************
|
|
*
|
|
* @file pios_i2c.h
|
|
* @author The OpenPilot Team, http://www.openpilot.org Copyright (C) 2010.
|
|
* Parts by Thorsten Klose (tk@midibox.org)
|
|
* @brief I2C functions header.
|
|
* @see The GNU Public License (GPL) Version 3
|
|
*
|
|
*****************************************************************************/
|
|
/*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation; either version 3 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful, but
|
|
* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
|
|
* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
|
|
* for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License along
|
|
* with this program; if not, write to the Free Software Foundation, Inc.,
|
|
* 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
|
*/
|
|
|
|
#ifndef PIOS_I2C_H
|
|
#define PIOS_I2C_H
|
|
|
|
/* Local defines */
|
|
#define I2C_ERROR_INVALID_PORT -1
|
|
#define I2C_ERROR_GENERAL -2
|
|
#define I2C_ERROR_UNSUPPORTED_TRANSFER_TYPE -3
|
|
#define I2C_ERROR_TIMEOUT -4
|
|
#define I2C_ERROR_ARBITRATION_LOST -5
|
|
#define I2C_ERROR_BUS -6
|
|
#define I2C_ERROR_SLAVE_NOT_CONNECTED -7
|
|
#define I2C_ERROR_UNEXPECTED_EVENT -8
|
|
#define I2C_ERROR_RX_BUFFER_OVERRUN -9
|
|
#define I2C_ERROR_BUSY -10
|
|
|
|
|
|
/* Global Types */
|
|
typedef enum {
|
|
I2C_Blocking,
|
|
I2C_Non_Blocking
|
|
} I2CSemaphoreTypeDef;
|
|
|
|
typedef enum {
|
|
I2C_Read,
|
|
I2C_Write,
|
|
I2C_Write_WithoutStop
|
|
} I2CTransferTypeDef;
|
|
|
|
/* Public Functions */
|
|
extern int32_t PIOS_I2C_Init(void);
|
|
extern int32_t PIOS_I2C_LockDevice(I2CSemaphoreTypeDef semaphore_type);
|
|
extern int32_t PIOS_I2C_UnlockDevice(void);
|
|
extern int32_t PIOS_I2C_TransferCheck(void);
|
|
extern int32_t PIOS_I2C_TransferWait(void);
|
|
extern int32_t PIOS_I2C_Transfer(I2CTransferTypeDef transfer, uint8_t address, uint8_t *buffer, uint16_t len);
|
|
extern void PIOS_I2C_StartTransfer(I2CTransferTypeDef transfer, uint8_t address, uint8_t *buffer, uint16_t len);
|
|
|
|
#endif /* PIOS_I2C_H */
|