conteepwrite.c
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/**************************************************************************
* *
* Copyright (C) 1995, Silicon Graphics, Inc. *
* *
* These coded instructions, statements, and computer programs contain *
* unpublished proprietary information of Silicon Graphics, Inc., and *
* are protected by Federal copyright law. They may not be disclosed *
* to third parties or copied or duplicated in any form, in whole or *
* in part, without the prior written consent of Silicon Graphics, Inc. *
* *
**************************************************************************/
#include "osint.h"
#include "controller.h"
#include "siint.h"
#ifdef BBPLAYER
#include "bbint.h"
#endif
#ifndef BBPLAYER
static void __osPackEepWriteData(u8, u8 *);
#endif
/*
* This call issues a write eeprom command to pif to write
* 8 bytes to eeprom.
* A value of 0 is returned if the calls succeed, otherwise
* -1 is returned
*/
s32
osEepromWrite(OSMesgQueue *mq, u8 address, u8 *buffer)
{
s32 ret = 0;
#ifndef BBPLAYER
u16 type;
u8 *ptr = (u8 *)(&__osEepPifRam);
__OSContEepromFormat eepromformat;
OSContStatus sdata;
u8 temp[8];
#endif
/* Block to get resource token */
__osSiGetAccess();
#ifdef BBPLAYER
/* continue to use SI as resource token */
ret = 0;
if (__osBbEepromSize == 512) {
if(address >= EEPROM_MAXBLOCKS) ret = -1;
} else if (__osBbEepromSize == 2048) {
if(address >= EEP16K_MAXBLOCKS) ret = -1;
} else {
ret = CONT_NO_RESPONSE_ERROR;
}
if (ret != 0) {
__osSiRelAccess();
return ret;
}
{
int i;
for (i = 0; i < EEPROM_BLOCK_SIZE; ++i) {
*(u8*)(__osBbEepromAddress+address*EEPROM_BLOCK_SIZE+i) = buffer[i];
}
}
#else
/* Need to make sure EEPROM is not busy before write */
ret = __osEepStatus(mq, &sdata);
type = (u16)(sdata.type & (u16)(CONT_EEPROM | CONT_EEP16K));
if (ret == 0) {
switch(type) {
case (u16)CONT_EEPROM :
if(address >= EEPROM_MAXBLOCKS) {
ret = -1;
}
break;
case (u16)(CONT_EEPROM | CONT_EEP16K) :
if(address >= EEP16K_MAXBLOCKS) {
ret = -1;
} else if (__osEepromRead16K != 0) {
/* dummy read for EEPROM-16K bug */
__osEepromRead16K = 0;
__osSiRelAccess();
osEepromRead(mq, (address^1), temp);
__osSiGetAccess();
}
break;
default:
ret = CONT_NO_RESPONSE_ERROR;
}
}
if (ret != 0) {
__osSiRelAccess();
return(ret);
}
while (sdata.status & CONT_EEPROM_BUSY) {
__osEepStatus(mq, &sdata);
}
/* Set up request command format for eeprom */
__osPackEepWriteData(address, buffer);
ret = __osSiRawStartDma(OS_WRITE, &__osEepPifRam);
(void)osRecvMesg(mq, (OSMesg *)NULL, OS_MESG_BLOCK);
/* trigger pifmacro */
ret = __osSiRawStartDma(OS_READ, &__osEepPifRam);
__osContLastCmd = CONT_EEPROM_WRITE;
(void)osRecvMesg(mq, (OSMesg *)NULL, OS_MESG_BLOCK);
ptr += MAXCONTROLLERS;
eepromformat = *((__OSContEepromFormat *)ptr);
#ifndef _HW_VERSION_1
ret = (s32)((eepromformat.rxsize & CON_ERR_MASK) >> 4);
#endif
#endif
__osSiRelAccess();
return(ret);
}
#ifndef BBPLAYER
static void
__osPackEepWriteData(u8 address, u8* buffer)
{
u8 *ptr = (u8 *)(&__osEepPifRam);
__OSContEepromFormat eepromformat;
int i;
/* clear pif ram */
#if 0
for (i = 0; i < PIFRAMSIZE-1 ; i++)
__osEepPifRam.ramarray[i] = 0xff;
#endif
#ifndef _HW_VERSION_1
__osEepPifRam.pifstatus = CONT_FORMAT;
#else
__osEepPifRam.pifstatus = 0;
#endif
/* Setup eeprom format */
eepromformat.txsize = 10;
eepromformat.rxsize = 1;
eepromformat.cmd = CONT_EEPROM_WRITE;
eepromformat.address = address;
for (i = 0; i < EEPROM_BLOCK_SIZE ; i++)
eepromformat.data[i] = *buffer++;
for (i = 0; i < MAXCONTROLLERS; i++)
*ptr++ = 0;
*((__OSContEepromFormat *)ptr) = eepromformat;
#ifndef _HW_VERSION_1
ptr += sizeof(eepromformat);
*((u8 *)ptr) = FORMAT_END;
#endif
}
s32
__osEepStatus(OSMesgQueue *mq, OSContStatus *data)
{
s32 ret = 0;
int i;
u8 *ptr = (u8 *)(&__osEepPifRam);
__OSContRequesFormat requestformat;
/* Set up request command format for channel 5 */
for (i = 0; i < PIFRAMSIZE ; i++)
__osEepPifRam.ramarray[i] = 0;
#ifndef _HW_VERSION_1
__osEepPifRam.pifstatus = CONT_FORMAT;
#else
__osEepPifRam.pifstatus = 0;
#endif
ptr = (u8 *)(&__osEepPifRam);
for (i = 0; i < MAXCONTROLLERS; i++)
*ptr++ = 0;
requestformat.dummy = 0xff;
requestformat.txsize = 1;
requestformat.rxsize = 3;
requestformat.cmd = CONT_REQUEST;
requestformat.typeh = 0xff;
requestformat.typel = 0xff;
requestformat.status = 0xff;
requestformat.dummy1 = 0xff;
*((__OSContRequesFormat *)ptr) = requestformat;
ptr += sizeof(requestformat);
#ifndef _HW_VERSION_1
*((u8 *)ptr) = FORMAT_END;
#endif
ret = __osSiRawStartDma(OS_WRITE, &__osEepPifRam);
(void)osRecvMesg(mq, (OSMesg *)NULL, OS_MESG_BLOCK);
__osContLastCmd = CONT_ETC; /* NOT CONT_REQUEST!! */
/* trigger pifmacro */
ret = __osSiRawStartDma(OS_READ, &__osEepPifRam);
(void)osRecvMesg(mq, (OSMesg *)NULL, OS_MESG_BLOCK);
if (ret)
return(ret);
/* Reformat the 64 bytes RAM data into RequestData format */
ptr = (u8 *)(&__osEepPifRam);
for (i = 0; i < MAXCONTROLLERS; i++)
*ptr++ = 0;
requestformat = *((__OSContRequesFormat *)ptr);
#ifndef _HW_VERSION_1
data->errno = (u8)((requestformat.rxsize & CON_ERR_MASK) >> 4);
#else
data->errno = (u8)(((requestformat.txsize & CON_ERR_MASK) >> 4)
| ((requestformat.rxsize & CON_ERR_MASK) >> 6));
#endif
data->type =(u16)((requestformat.typel<<8)|requestformat.typeh);
data->status = requestformat.status;
if (data->errno)
return((s32)(data->errno));
return(0);
}
#endif