[Tinyos-2-commits] CVS: tinyos-2.x/tos/platforms/iris/chips/at45db
HplAt45dbIOC.nc, NONE, 1.1 HplAt45dbIOP.nc, NONE,
1.1 StorageMap.nc, NONE, 1.1
Janos Sallai
sallai at users.sourceforge.net
Thu Jan 24 12:45:53 PST 2008
Update of /cvsroot/tinyos/tinyos-2.x/tos/platforms/iris/chips/at45db
In directory sc8-pr-cvs10.sourceforge.net:/tmp/cvs-serv20316/chips/at45db
Added Files:
HplAt45dbIOC.nc HplAt45dbIOP.nc StorageMap.nc
Log Message:
iris external flash bugfix
--- NEW FILE: HplAt45dbIOC.nc ---
// $Id: HplAt45dbIOC.nc,v 1.1 2008/01/24 20:45:51 sallai Exp $
/*
* Copyright (c) 2005-2006 Intel Corporation
* All rights reserved.
*
* This file is distributed under the terms in the attached INTEL-LICENSE
* file. If you do not find these files, copies can be found by writing to
* Intel Research Berkeley, 2150 Shattuck Avenue, Suite 1300, Berkeley, CA,
* 94704. Attention: Intel License Inquiry.
*/
/*
* Copyright (c) 2007, Vanderbilt University
* All rights reserved.
*
* Permission to use, copy, modify, and distribute this software and its
* documentation for any purpose, without fee, and without written agreement is
* hereby granted, provided that the above copyright notice, the following
* two paragraphs and the author appear in all copies of this software.
*
* IN NO EVENT SHALL THE VANDERBILT UNIVERSITY BE LIABLE TO ANY PARTY FOR
* DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES ARISING OUT
* OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN IF THE VANDERBILT
* UNIVERSITY HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* THE VANDERBILT UNIVERSITY SPECIFICALLY DISCLAIMS ANY WARRANTIES,
* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
* AND FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS
* ON AN "AS IS" BASIS, AND THE VANDERBILT UNIVERSITY HAS NO OBLIGATION TO
* PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
*
*/
/**
* Low-level access functions for the AT45DB flash on the mica2 and micaz.
*
* @author David Gay
* @author Janos Sallai <janos.sallai at vanderbilt.edu>
*/
configuration HplAt45dbIOC {
provides {
interface Resource;
interface SpiByte as FlashSpi;
interface HplAt45dbByte;
}
}
implementation {
// Wire up byte I/O to At45db
components HplAt45dbIOP, HplAtm128GeneralIOC as Pins, PlatformC;
components BusyWaitMicroC;
components new NoArbiterC();
Resource = NoArbiterC;
FlashSpi = HplAt45dbIOP;
HplAt45dbByte = HplAt45dbIOP;
PlatformC.SubInit -> HplAt45dbIOP;
HplAt45dbIOP.Select -> Pins.PortA3;
HplAt45dbIOP.Clk -> Pins.PortD5;
HplAt45dbIOP.In -> Pins.PortD2;
HplAt45dbIOP.Out -> Pins.PortD3;
HplAt45dbIOP.BusyWait -> BusyWaitMicroC;
}
--- NEW FILE: HplAt45dbIOP.nc ---
// $Id: HplAt45dbIOP.nc,v 1.1 2008/01/24 20:45:51 sallai Exp $
/* tab:4
* "Copyright (c) 2000-2003 The Regents of the University of California.
* All rights reserved.
*
* Permission to use, copy, modify, and distribute this software and its
* documentation for any purpose, without fee, and without written agreement is
* hereby granted, provided that the above copyright notice, the following
* two paragraphs and the author appear in all copies of this software.
*
* IN NO EVENT SHALL THE UNIVERSITY OF CALIFORNIA BE LIABLE TO ANY PARTY FOR
* DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES ARISING OUT
* OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN IF THE UNIVERSITY OF
* CALIFORNIA HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* THE UNIVERSITY OF CALIFORNIA SPECIFICALLY DISCLAIMS ANY WARRANTIES,
* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
* AND FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS
* ON AN "AS IS" BASIS, AND THE UNIVERSITY OF CALIFORNIA HAS NO OBLIGATION TO
* PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS."
*
* Copyright (c) 2002-2003 Intel Corporation
* All rights reserved.
*
* This file is distributed under the terms in the attached INTEL-LICENSE
* file. If you do not find these files, copies can be found by writing to
* Intel Research Berkeley, 2150 Shattuck Avenue, Suite 1300, Berkeley, CA,
* 94704. Attention: Intel License Inquiry.
*/
/*
* Copyright (c) 2007, Vanderbilt University
* All rights reserved.
*
* Permission to use, copy, modify, and distribute this software and its
* documentation for any purpose, without fee, and without written agreement is
* hereby granted, provided that the above copyright notice, the following
* two paragraphs and the author appear in all copies of this software.
*
* IN NO EVENT SHALL THE VANDERBILT UNIVERSITY BE LIABLE TO ANY PARTY FOR
* DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES ARISING OUT
* OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN IF THE VANDERBILT
* UNIVERSITY HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* THE VANDERBILT UNIVERSITY SPECIFICALLY DISCLAIMS ANY WARRANTIES,
* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
* AND FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS
* ON AN "AS IS" BASIS, AND THE VANDERBILT UNIVERSITY HAS NO OBLIGATION TO
* PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
*
*/
/**
* Low level hardware access to the onboard AT45DB flash chip.
* <p>
* Note: This component includes optimised bit-banging SPI code with the
* pins hardwired. Don't copy it to some other platform without
* understanding it (see txByte).
*
* @author Jason Hill
* @author David Gay
* @author Philip Levis
* @author Janos Sallai <janos.sallai at vanderbilt.edu>
*/
#include "Timer.h"
module HplAt45dbIOP {
provides {
interface Init;
interface SpiByte as FlashSpi;
interface HplAt45dbByte;
}
uses {
interface GeneralIO as Select;
interface GeneralIO as Clk;
interface GeneralIO as Out;
interface GeneralIO as In;
interface BusyWait<TMicro, uint16_t>;
}
}
implementation
{
// We use SPI mode 0 (clock low at select time)
command error_t Init.init() {
call Select.makeOutput();
call Select.set();
call Clk.clr();
call Clk.makeOutput();
call Out.set();
call Out.makeOutput();
call In.clr();
call In.makeInput();
return SUCCESS;
}
command void HplAt45dbByte.select() {
call Clk.clr(); // ensure SPI mode 0
call Select.clr();
}
command void HplAt45dbByte.deselect() {
call Select.set();
}
#define BITINIT \
uint8_t clrClkAndData = PORTD & ~0x28
#define BIT(n) \
PORTD = clrClkAndData; \
asm __volatile__ \
( "sbrc %2," #n "\n" \
"\tsbi 11,3\n" \
"\tsbi 11,5\n" \
"\tsbic 9,2\n" \
"\tori %0,1<<" #n "\n" \
: "=d" (spiIn) : "0" (spiIn), "r" (spiOut))
async command uint8_t FlashSpi.write(uint8_t spiOut) {
uint8_t spiIn = 0;
// This atomic ensures integrity at the hardware level...
atomic
{
BITINIT;
BIT(7);
BIT(6);
BIT(5);
BIT(4);
BIT(3);
BIT(2);
BIT(1);
BIT(0);
}
return spiIn;
}
task void avail() {
signal HplAt45dbByte.idle();
}
command void HplAt45dbByte.waitIdle() {
// at45db041 rev d fix by handsomezhu hongsong at ios.cn
// http://mail.millennium.berkeley.edu/pipermail/tinyos-help/2008-January/030255.html
int i;
call Clk.clr();
call BusyWait.wait(2);
while( ! call In.get() ) {
for( i=0; i < 8; i ++ ) {
call Clk.set();
call Clk.clr();
call BusyWait.wait(2);
}
}
post avail();
}
command bool HplAt45dbByte.getCompareStatus() {
call Clk.set();
call Clk.clr();
// Wait for compare value to propagate
asm volatile("nop");
asm volatile("nop");
return !call In.get();
}
}
--- NEW FILE: StorageMap.nc ---
/*
* Copyright (c) 2005-2006 Arch Rock Corporation
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* - Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* - Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the
* distribution.
* - Neither the name of the Arch Rock Corporation nor the names of
* its contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* ARCHED ROCK OR ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
* OF THE POSSIBILITY OF SUCH DAMAGE
*/
/**
* An abstraction to map volume addresses to physical addresses.
*
* @author Jonathan Hui <jhui at archrock.com>
* @version $Revision: 1.1 $ $Date: 2008/01/24 20:45:51 $
*/
#include "at45db.h"
interface StorageMap {
/**
* Get the physical address of a volume address.
*
* @param addr the volume addres.
* @return the physical address.
*/
command storage_addr_t getPhysicalAddress( storage_addr_t addr );
}
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