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/*
* This file is part of the flashrom project.
*
* Copyright (C) 2009,2010 Carl-Daniel Hailfinger
*
* 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include "flash.h"
#include "programmer.h"
static const struct par_programmer par_programmer_none = {
.chip_readb = noop_chip_readb,
.chip_readw = fallback_chip_readw,
.chip_readl = fallback_chip_readl,
.chip_readn = fallback_chip_readn,
.chip_writeb = noop_chip_writeb,
.chip_writew = fallback_chip_writew,
.chip_writel = fallback_chip_writel,
.chip_writen = fallback_chip_writen,
};
const struct par_programmer *par_programmer = &par_programmer_none;
/* No-op shutdown() for programmers which don't need special handling */
int noop_shutdown(void)
{
return 0;
}
/* Fallback map() for programmers which don't need special handling */
void *fallback_map(const char *descr, unsigned long phys_addr, size_t len)
{
/* FIXME: Should return phys_addr. */
return NULL;
}
/* No-op/fallback unmap() for programmers which don't need special handling */
void fallback_unmap(void *virt_addr, size_t len)
{
}
/* No-op chip_writeb() for drivers not supporting addr/data pair accesses */
uint8_t noop_chip_readb(const chipaddr addr)
{
return 0xff;
}
/* No-op chip_writeb() for drivers not supporting addr/data pair accesses */
void noop_chip_writeb(uint8_t val, chipaddr addr)
{
}
/* Little-endian fallback for drivers not supporting 16 bit accesses */
void fallback_chip_writew(uint16_t val, chipaddr addr)
{
chip_writeb(val & 0xff, addr);
chip_writeb((val >> 8) & 0xff, addr + 1);
}
/* Little-endian fallback for drivers not supporting 16 bit accesses */
uint16_t fallback_chip_readw(const chipaddr addr)
{
uint16_t val;
val = chip_readb(addr);
val |= chip_readb(addr + 1) << 8;
return val;
}
/* Little-endian fallback for drivers not supporting 32 bit accesses */
void fallback_chip_writel(uint32_t val, chipaddr addr)
{
chip_writew(val & 0xffff, addr);
chip_writew((val >> 16) & 0xffff, addr + 2);
}
/* Little-endian fallback for drivers not supporting 32 bit accesses */
uint32_t fallback_chip_readl(const chipaddr addr)
{
uint32_t val;
val = chip_readw(addr);
val |= chip_readw(addr + 2) << 16;
return val;
}
void fallback_chip_writen(uint8_t *buf, chipaddr addr, size_t len)
{
size_t i;
for (i = 0; i < len; i++)
chip_writeb(buf[i], addr + i);
return;
}
void fallback_chip_readn(uint8_t *buf, chipaddr addr, size_t len)
{
size_t i;
for (i = 0; i < len; i++)
buf[i] = chip_readb(addr + i);
return;
}
void register_par_programmer(const struct par_programmer *pgm, const enum chipbustype buses)
{
par_programmer = pgm;
buses_supported |= buses;
}
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