diff options
Diffstat (limited to 'c/src/lib/libbsp/powerpc/mvme5500/GT64260/MVME5500I2C.c')
| -rw-r--r-- | c/src/lib/libbsp/powerpc/mvme5500/GT64260/MVME5500I2C.c | 52 |
1 files changed, 30 insertions, 22 deletions
diff --git a/c/src/lib/libbsp/powerpc/mvme5500/GT64260/MVME5500I2C.c b/c/src/lib/libbsp/powerpc/mvme5500/GT64260/MVME5500I2C.c index 382425ea35..107b8f15cb 100644 --- a/c/src/lib/libbsp/powerpc/mvme5500/GT64260/MVME5500I2C.c +++ b/c/src/lib/libbsp/powerpc/mvme5500/GT64260/MVME5500I2C.c @@ -1,16 +1,18 @@ -/* MVME5500I2C.c - * +/* + * To read information of the EEPROM via the I2C + */ + +/* * Copyright (c) 2003, 2004 Brookhaven National Laboratory * Author: S. Kate Feng <feng1@bnl.gov> * All rights reserved. * * The license and distribution terms for this file may be * found in the file LICENSE in this distribution. - * - * To read information of the EEPROM via the I2C */ -#include <rtems/bspIo.h> /* printk */ +#include <bsp.h> +#include <rtems/bspIo.h> /* printk */ #include <stdint.h> /* uint32_t */ #include "bsp/GT64260TWSI.h" @@ -28,28 +30,34 @@ static unsigned char I2cDevByteAddr(uint32_t devA2A1A0, unsigned char byteNum) /**************************************************************************** * I2Cread_eeprom - read EEPROM VPD from the I2C */ -int I2Cread_eeprom(unsigned char I2cBusAddr,uint32_t devA2A1A0,uint32_t AddrBytes,unsigned char *pBuff,uint32_t numBytes) +int I2Cread_eeprom( + unsigned char I2cBusAddr, + uint32_t devA2A1A0, + uint32_t AddrBytes, + unsigned char *pBuff, + uint32_t numBytes +) { int status=0, lastByte=0; switch (AddrBytes) { case 1: if ((status=GT64260TWSIstart()) != -1) { - if ((status=GT64260TWSIwrite(I2cAddrPack(I2cBusAddr,devA2A1A0)))!= -1){ - if ((status=GT64260TWSIwrite(devA2A1A0))!=-1){ - if ((status=GT64260TWSIstart())!=-1) - status=GT64260TWSIwrite(I2cAddrPack((I2cBusAddr|0x01),devA2A1A0)); - } + if ((status=GT64260TWSIwrite(I2cAddrPack(I2cBusAddr,devA2A1A0)))!= -1){ + if ((status=GT64260TWSIwrite(devA2A1A0))!=-1){ + if ((status=GT64260TWSIstart())!=-1) + status=GT64260TWSIwrite(I2cAddrPack((I2cBusAddr|0x01),devA2A1A0)); + } } } break; case 2: if ((status=GT64260TWSIstart())!=-1) { - if ((status=GT64260TWSIwrite(I2cBusAddr))!= -1) { - if ((status=GT64260TWSIwrite(I2cDevByteAddr(devA2A1A0,1)))!=-1) { - if ((status=GT64260TWSIwrite(I2cDevByteAddr(devA2A1A0,0)))!= -1){ - if ((status=GT64260TWSIstart()) != -1) { - status = GT64260TWSIwrite((I2cBusAddr | 0x01)); + if ((status=GT64260TWSIwrite(I2cBusAddr))!= -1) { + if ((status=GT64260TWSIwrite(I2cDevByteAddr(devA2A1A0,1)))!=-1) { + if ((status=GT64260TWSIwrite(I2cDevByteAddr(devA2A1A0,0)))!= -1){ + if ((status=GT64260TWSIstart()) != -1) { + status = GT64260TWSIwrite((I2cBusAddr | 0x01)); } } } @@ -58,12 +66,12 @@ int I2Cread_eeprom(unsigned char I2cBusAddr,uint32_t devA2A1A0,uint32_t AddrByte break; case 3: if ((status = GT64260TWSIstart())!= -1) { - if ((status = GT64260TWSIwrite(I2cBusAddr))!= -1) { - if ((status=GT64260TWSIwrite(I2cDevByteAddr(devA2A1A0,2)))!= -1){ - if ((status=GT64260TWSIwrite(I2cDevByteAddr(devA2A1A0,1)))!= -1){ - if ((status=GT64260TWSIwrite(I2cDevByteAddr(devA2A1A0,0)))!= -1){ - if ((status=GT64260TWSIstart())!= -1) { - status = GT64260TWSIwrite(I2cBusAddr | 0x01); + if ((status = GT64260TWSIwrite(I2cBusAddr))!= -1) { + if ((status=GT64260TWSIwrite(I2cDevByteAddr(devA2A1A0,2)))!= -1){ + if ((status=GT64260TWSIwrite(I2cDevByteAddr(devA2A1A0,1)))!= -1){ + if ((status=GT64260TWSIwrite(I2cDevByteAddr(devA2A1A0,0)))!= -1){ + if ((status=GT64260TWSIstart())!= -1) { + status = GT64260TWSIwrite(I2cBusAddr | 0x01); } } } |