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/**
@verbatim
Copyright (C) 2004,2005 ADDI-DATA GmbH for the source code of this module.
ADDI-DATA GmbH
Dieselstrasse 3
D-77833 Ottersweier
Tel: +19(0)7223/9493-0
Fax: +49(0)7223/9493-92
http://www.addi-data-com
info@addi-data.com
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 2 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
You should also find the complete GPL in the COPYING file accompanying this source code.
@endverbatim
*/
/*
+-----------------------------------------------------------------------+
| (C) ADDI-DATA GmbH Dieselstraße 3 D-77833 Ottersweier |
+-----------------------------------------------------------------------+
| Tel : +49 (0) 7223/9493-0 | email : info@addi-data.com |
| Fax : +49 (0) 7223/9493-92 | Internet : http://www.addi-data.com |
+-------------------------------+---------------------------------------+
| Project : ADDI HEADER READ WRITER | Compiler : Visual C++ |
| Module name : S5920.cpp | Version : 6.0 |
+-------------------------------+---------------------------------------+
| Author : E. LIBS Date : 02/05/2002 |
+-----------------------------------------------------------------------+
| Description : DLL with the S5920 PCI Controller functions |
+-----------------------------------------------------------------------+
| UPDATE'S |
+-----------------------------------------------------------------------+
| Date | Author | Description of updates |
+----------+-----------+------------------------------------------------+
| 28/08/02 | LIBS Eric | Add return codes each time a function of the |
| | | Addi Library is called |
+-----------------------------------------------------------------------+
| 31/07/03 | KRAUTH J. | Changes for the MSX-Box |
+-----------------------------------------------------------------------+
*/
#include "addi_amcc_S5920.h"
/*+----------------------------------------------------------------------------+*/
/*| Function Name : int i_AddiHeaderRW_ReadEeprom |*/
/*| (int i_NbOfWordsToRead, |*/
/*| unsigned int dw_PCIBoardEepromAddress, |*/
/*| unsigned short w_EepromStartAddress, |*/
/*| unsigned short * pw_DataRead) |*/
/*+----------------------------------------------------------------------------+*/
/*| Task : Read word from the 5920 eeprom. |*/
/*+----------------------------------------------------------------------------+*/
/*| Input Parameters : int i_NbOfWordsToRead : Nbr. of word to read |*/
/*| unsigned int dw_PCIBoardEepromAddress : Address of the eeprom |*/
/*| unsigned short w_EepromStartAddress : Eeprom strat address |*/
/*+----------------------------------------------------------------------------+*/
/*| Output Parameters : unsigned short * pw_DataRead : Read data |*/
/*+----------------------------------------------------------------------------+*/
/*| Return Value : - |*/
/*+----------------------------------------------------------------------------+*/
int i_AddiHeaderRW_ReadEeprom(int i_NbOfWordsToRead,
unsigned int dw_PCIBoardEepromAddress,
unsigned short w_EepromStartAddress, unsigned short *pw_DataRead)
{
unsigned int dw_eeprom_busy = 0;
int i_Counter = 0;
int i_WordCounter;
int i;
unsigned char pb_ReadByte[1];
unsigned char b_ReadLowByte = 0;
unsigned char b_ReadHighByte = 0;
unsigned char b_SelectedAddressLow = 0;
unsigned char b_SelectedAddressHigh = 0;
unsigned short w_ReadWord = 0;
for (i_WordCounter = 0; i_WordCounter < i_NbOfWordsToRead;
i_WordCounter++) {
do {
dw_eeprom_busy =
inl(dw_PCIBoardEepromAddress +
AMCC_OP_REG_MCSR);
dw_eeprom_busy = dw_eeprom_busy & EEPROM_BUSY;
} while (dw_eeprom_busy == EEPROM_BUSY);
for (i_Counter = 0; i_Counter < 2; i_Counter++) {
b_SelectedAddressLow = (w_EepromStartAddress + i_Counter) % 256; /* Read the low 8 bit part */
b_SelectedAddressHigh = (w_EepromStartAddress + i_Counter) / 256; /* Read the high 8 bit part */
/* Select the load low address mode */
outb(NVCMD_LOAD_LOW,
dw_PCIBoardEepromAddress + AMCC_OP_REG_MCSR +
3);
/* Wait on busy */
do {
dw_eeprom_busy =
inl(dw_PCIBoardEepromAddress +
AMCC_OP_REG_MCSR);
dw_eeprom_busy = dw_eeprom_busy & EEPROM_BUSY;
} while (dw_eeprom_busy == EEPROM_BUSY);
/* Load the low address */
outb(b_SelectedAddressLow,
dw_PCIBoardEepromAddress + AMCC_OP_REG_MCSR +
2);
/* Wait on busy */
do {
dw_eeprom_busy =
inl(dw_PCIBoardEepromAddress +
AMCC_OP_REG_MCSR);
dw_eeprom_busy = dw_eeprom_busy & EEPROM_BUSY;
} while (dw_eeprom_busy == EEPROM_BUSY);
/* Select the load high address mode */
outb(NVCMD_LOAD_HIGH,
dw_PCIBoardEepromAddress + AMCC_OP_REG_MCSR +
3);
/* Wait on busy */
do {
dw_eeprom_busy =
inl(dw_PCIBoardEepromAddress +
AMCC_OP_REG_MCSR);
dw_eeprom_busy = dw_eeprom_busy & EEPROM_BUSY;
} while (dw_eeprom_busy == EEPROM_BUSY);
/* Load the high address */
outb(b_SelectedAddressHigh,
dw_PCIBoardEepromAddress + AMCC_OP_REG_MCSR +
2);
/* Wait on busy */
do {
dw_eeprom_busy =
inl(dw_PCIBoardEepromAddress +
AMCC_OP_REG_MCSR);
dw_eeprom_busy = dw_eeprom_busy & EEPROM_BUSY;
} while (dw_eeprom_busy == EEPROM_BUSY);
/* Select the READ mode */
outb(NVCMD_BEGIN_READ,
dw_PCIBoardEepromAddress + AMCC_OP_REG_MCSR +
3);
/* Wait on busy */
do {
dw_eeprom_busy =
inl(dw_PCIBoardEepromAddress +
AMCC_OP_REG_MCSR);
dw_eeprom_busy = dw_eeprom_busy & EEPROM_BUSY;
} while (dw_eeprom_busy == EEPROM_BUSY);
/* Read data into the EEPROM */
*pb_ReadByte =
inb(dw_PCIBoardEepromAddress +
AMCC_OP_REG_MCSR + 2);
/* Wait on busy */
do {
dw_eeprom_busy =
inl(dw_PCIBoardEepromAddress +
AMCC_OP_REG_MCSR);
dw_eeprom_busy = dw_eeprom_busy & EEPROM_BUSY;
} while (dw_eeprom_busy == EEPROM_BUSY);
/* Select the upper address part */
if (i_Counter == 0)
b_ReadLowByte = pb_ReadByte[0];
else
b_ReadHighByte = pb_ReadByte[0];
/* Sleep */
msleep(1);
}
w_ReadWord =
(b_ReadLowByte | (((unsigned short)b_ReadHighByte) *
256));
pw_DataRead[i_WordCounter] = w_ReadWord;
w_EepromStartAddress += 2; /* to read the next word */
} /* for (...) i_NbOfWordsToRead */
return 0;
}
|
