len0rd/FreeRTOS-Kernel
1
0
Fork 0
mirror of https://github.com/FreeRTOS/FreeRTOS-Kernel.git synced 2025-08-20 01:58:32 -04:00
Code Issues Projects Releases Packages Wiki Activity

First version under SVN is V4.0.1

Browse source
This commit is contained in:
Richard Barry 2006-05-02 09:39:15 +00:00
parent 243393860c
commit b6df57c7e3
918 changed files with 269038 additions and 0 deletions
Download patch file Download diff file Expand all files Collapse all files

137
Demo/CORTEX_LM3S102_Rowley/hw_include/i2c.h Normal file
View file

@ -0,0 +1,137 @@
//*****************************************************************************
//
// i2c.h - Prototypes for the I2C Driver.
//
// Copyright (c) 2005,2006 Luminary Micro, Inc. All rights reserved.
//
// Software License Agreement
//
// Luminary Micro, Inc. (LMI) is supplying this software for use solely and
// exclusively on LMI's Stellaris Family of microcontroller products.
//
// The software is owned by LMI and/or its suppliers, and is protected under
// applicable copyright laws. All rights are reserved. Any use in violation
// of the foregoing restrictions may subject the user to criminal sanctions
// under applicable laws, as well as to civil liability for the breach of the
// terms and conditions of this license.
//
// THIS SOFTWARE IS PROVIDED "AS IS". NO WARRANTIES, WHETHER EXPRESS, IMPLIED
// OR STATUTORY, INCLUDING, BUT NOT LIMITED TO, IMPLIED WARRANTIES OF
// MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE APPLY TO THIS SOFTWARE.
// LMI SHALL NOT, IN ANY CIRCUMSTANCES, BE LIABLE FOR SPECIAL, INCIDENTAL, OR
// CONSEQUENTIAL DAMAGES, FOR ANY REASON WHATSOEVER.
//
// This is part of revision 523 of the Stellaris Driver Library.
//
//*****************************************************************************
#ifndef __I2C_H__
#define __I2C_H__
#ifdef __cplusplus
extern "C"
{
#endif
//*****************************************************************************
//
// Defines for the API.
//
//*****************************************************************************
//*****************************************************************************
//
// Interrupt defines.
//
//*****************************************************************************
#define I2C_INT_MASTER 0x00000001
#define I2C_INT_SLAVE 0x00000002
//*****************************************************************************
//
// I2C Master commands.
//
//*****************************************************************************
#define I2C_MASTER_CMD_SINGLE_SEND \
(I2C_MASTER_CS_STOP | I2C_MASTER_CS_START | I2C_MASTER_CS_RUN)
#define I2C_MASTER_CMD_SINGLE_RECEIVE \
(I2C_MASTER_CS_STOP | I2C_MASTER_CS_START | I2C_MASTER_CS_RUN)
#define I2C_MASTER_CMD_BURST_SEND_START \
(I2C_MASTER_CS_START | I2C_MASTER_CS_RUN)
#define I2C_MASTER_CMD_BURST_SEND_CONT \
(I2C_MASTER_CS_RUN)
#define I2C_MASTER_CMD_BURST_SEND_FINISH \
(I2C_MASTER_CS_STOP | I2C_MASTER_CS_RUN)
#define I2C_MASTER_CMD_BURST_SEND_ERROR_STOP \
(I2C_MASTER_CS_STOP)
#define I2C_MASTER_CMD_BURST_RECEIVE_START \
(I2C_MASTER_CS_ACK | I2C_MASTER_CS_START | I2C_MASTER_CS_RUN)
#define I2C_MASTER_CMD_BURST_RECEIVE_CONT \
(I2C_MASTER_CS_ACK | I2C_MASTER_CS_RUN)
#define I2C_MASTER_CMD_BURST_RECEIVE_FINISH \
(I2C_MASTER_CS_STOP | I2C_MASTER_CS_RUN)
#define I2C_MASTER_CMD_BURST_RECEIVE_ERROR_STOP \
(I2C_MASTER_CS_STOP | I2C_MASTER_CS_RUN)
//*****************************************************************************
//
// I2C Master error status.
//
//*****************************************************************************
#define I2C_MASTER_ERR_NONE 0
#define I2C_MASTER_ERR_ADDR_ACK 0x00000004
#define I2C_MASTER_ERR_DATA_ACK 0x00000008
#define I2C_MASTER_ERR_ARB_LOST 0x00000010
//*****************************************************************************
//
// I2C Slave action requests
//
//*****************************************************************************
#define I2C_SLAVE_ACT_NONE 0
#define I2C_SLAVE_ACT_RREQ 0x00000001 // Master has sent data
#define I2C_SLAVE_ACT_TREQ 0x00000002 // Master has requested data
//*****************************************************************************
// Miscellaneous I2C driver definitions.
//*****************************************************************************
#define I2C_MASTER_MAX_RETRIES 1000 // Number of retries
//*****************************************************************************
//
// Prototypes for the APIs.
//
//*****************************************************************************
extern void I2CIntRegister(unsigned long ulBase, void(fnHandler)(void));
extern void I2CIntUnregister(unsigned long ulBase);
extern tBoolean I2CMasterBusBusy(unsigned long ulBase);
extern tBoolean I2CMasterBusy(unsigned long ulBase);
extern void I2CMasterControl(unsigned long ulBase, unsigned long ulCmd);
extern unsigned long I2CMasterDataGet(unsigned long ulBase);
extern void I2CMasterDataPut(unsigned long ulBase, unsigned char ucData);
extern void I2CMasterDisable(unsigned long ulBase);
extern void I2CMasterEnable(unsigned long ulBase);
extern unsigned long I2CMasterErr(unsigned long ulBase);
extern void I2CMasterInit(unsigned long ulBase, tBoolean bFast);
extern void I2CMasterIntClear(unsigned long ulBase);
extern void I2CMasterIntDisable(unsigned long ulBase);
extern void I2CMasterIntEnable(unsigned long ulBase);
extern tBoolean I2CMasterIntStatus(unsigned long ulBase, tBoolean bMasked);
extern void I2CMasterSlaveAddrSet(unsigned long ulBase,
unsigned char ucSlaveAddr,
tBoolean bReceive);
extern unsigned long I2CSlaveDataGet(unsigned long ulBase);
extern void I2CSlaveDataPut(unsigned long ulBase, unsigned char ucData);
extern void I2CSlaveDisable(unsigned long ulBase);
extern void I2CSlaveEnable(unsigned long ulBase);
extern void I2CSlaveInit(unsigned long ulBase, unsigned char ucSlaveAddr);
extern void I2CSlaveIntClear(unsigned long ulBase);
extern void I2CSlaveIntDisable(unsigned long ulBase);
extern void I2CSlaveIntEnable(unsigned long ulBase);
extern tBoolean I2CSlaveIntStatus(unsigned long ulBase, tBoolean bMasked);
extern unsigned long I2CSlaveStatus(unsigned long ulBase);
#ifdef __cplusplus
}
#endif
#endif // __I2C_H__