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* This file is part of the flashrom project.
* Copyright (C) 2010 Google Inc.
* 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
* 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
#ifndef __WRITEPROTECT_H__
#define __WRITEPROTECT_H__ 1
struct wp {
int (*list_ranges)(struct flashchip *flash);
int (*set_range)(struct flashchip *flash,
unsigned int start, unsigned int len);
int (*enable)(struct flashchip *flash);
int (*disable)(struct flashchip *flash);
int (*wp_status)(struct flashchip *flash);
/* winbond w25-series */
extern struct wp wp_w25;
extern struct wp wp_wpce775x;
struct w25q_status {
/* this maps to register layout -- do not change ordering */
unsigned char busy : 1;
unsigned char wel : 1;
unsigned char bp0 : 1;
unsigned char bp1 : 1;
unsigned char bp2 : 1;
unsigned char tb : 1;
unsigned char sec : 1;
unsigned char srp0 : 1;
/* FIXME: what about the second status register? */
// unsigned char srp1 : 1;
// unsigned char qe : 1;
} __attribute__ ((packed));
int w25_range_to_status(const struct flashchip *flash,
unsigned int start, unsigned int len,
struct w25q_status *status);
int w25_status_to_range(const struct flashchip *flash,
const struct w25q_status *status,
unsigned int *start, unsigned int *len);
#endif /* !__WRITEPROTECT_H__ */