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/*------------------------------------------------------------------------------
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-- This file is a part of the libuc, microcontroler library
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-- Copyright (C) 2013, Alexis Jeandet
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--
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-- This program is free software; you can redistribute it and/or modify
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-- it under the terms of the GNU General Public License as published by
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-- the Free Software Foundation; either version 3 of the License, or
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-- (at your option) any later version.
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--
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-- This program is distributed in the hope that it will be useful,
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-- but WITHOUT ANY WARRANTY; without even the implied warranty of
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-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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-- GNU General Public License for more details.
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--
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-- You should have received a copy of the GNU General Public License
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-- along with this program; if not, write to the Free Software
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-- Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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-------------------------------------------------------------------------------
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-- Author : Alexis Jeandet
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-- Mail : alexis.jeandet@gmail.com
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-------------------------------------------------------------------------------*/
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#include <N25Q128.h>
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#include <core.h>
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#include <stdio.h>
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void eepromN25Q128open(eepromN25Q128Dev *dev, spi_t spidev, void (*select)(int), void (*writeprotect)(int), void (*holdreset)(int))
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{
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dev->spidev = spidev;
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dev->holdreset = holdreset;
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dev->select = select;
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dev->writeprotect = writeprotect;
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}
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void eepromN25Q128pagewrite(eepromN25Q128Dev* dev,uint32_t address,unsigned char* page)
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{
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int cmdcnt=1,datacnt=8;
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}
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void eepromN25Q128pageread(eepromN25Q128Dev* dev,uint32_t address,unsigned char* page)
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{
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int cmdcnt=1,datacnt=8;
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}
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void eepromN25Q128bytewrite(eepromN25Q128Dev* dev,uint32_t address,unsigned char data)
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{
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int cmdcnt=1,datacnt=1;
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}
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unsigned char eepromN25Q128byteread(eepromN25Q128Dev* dev,uint32_t address)
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{
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int cmdcnt=1,datacnt=1;
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unsigned char data = 0;
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return data;
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}
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void eepromN25Q128readn(eepromN25Q128Dev* dev,uint32_t address,unsigned char* data, unsigned int count)
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{
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char baddress[3];
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baddress[0]=(char)0xFF&((address)>>16);
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baddress[1]=(char)0xFF&((address)>>8);
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baddress[2]=(char)0xFF&((address));
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printf("about to read %d bytes\n\r",count);
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if(dev->select!=NULL)dev->select(0);
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spiputw(dev->spidev,N25Q128_READ);
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spiputnc(dev->spidev,baddress,3);
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spigetnc(dev->spidev,data,count);
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if(dev->select!=NULL)dev->select(1);
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}
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void eepromN25Q128writen(eepromN25Q128Dev* dev,uint32_t address,unsigned char* data, unsigned int count)
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{
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char baddress[3];
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if(dev->select!=NULL)dev->select(0);
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for(int i=0;i<(count/N25Q128_PAGE_SZ);i++)
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{
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printf("about to send %d bytes\n\r",N25Q128_PAGE_SZ);
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int index =i*N25Q128_PAGE_SZ;
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baddress[0]=(char)0xFF&((address+index)>>16);
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baddress[1]=(char)0xFF&((address+index)>>8);
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baddress[2]=(char)0xFF&((address+index));
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if(dev->select!=NULL)dev->select(0);
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spiputw(dev->spidev,N25Q128_PP);
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spiputnc(dev->spidev,baddress,3);
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spiputnc(dev->spidev,data+(index),count);
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if(dev->select!=NULL)
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{
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dev->select(1);
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}
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else {
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while (!spitransactionfinished(dev->spidev));
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}
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}
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int mod = count%N25Q128_PAGE_SZ;
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if(mod)
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{
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baddress[0]=(char)0xFF&((address+(count-mod))>>16);
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baddress[1]=(char)0xFF&((address+(count-mod))>>8);
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baddress[2]=(char)0xFF&((address+(count-mod)));
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printf("about to send %d bytes\n\r",mod);
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if(dev->select!=NULL)dev->select(0);
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spiputw(dev->spidev,N25Q128_PP);
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spiputnc(dev->spidev,baddress,3);
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spiputnc(dev->spidev,data+(count-mod),mod);
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if(dev->select!=NULL)
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{
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dev->select(1);
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}
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else {
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while (!spitransactionfinished(dev->spidev));
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}
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}
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}
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void eepromN25Q128enablewrite(eepromN25Q128Dev *dev)
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{
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if(dev->select!=NULL)dev->select(0);
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spiputw(dev->spidev,N25Q128_WREN);
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if(dev->select!=NULL)dev->select(1);
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}
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