freebsd-skq/sys/dev/cfi/cfi_var.h
Jayachandran C. 9c1f1330d6 CFI fixes for big endian archs.
The flash commands and responses are little-endian and have to be
byte swapped on big-endian systems.  However the raw read of data
need not be swapped.

Make the cfi_read and cfi_write do the swapping, and provide a
cfi_read_raw which does not byte swap for reading data from
flash.
2012-03-27 15:13:12 +00:00

89 lines
3.0 KiB
C

/*-
* Copyright (c) 2007, Juniper Networks, Inc.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. 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.
* 3. Neither the name of the author nor the names of any co-contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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.
*
* $FreeBSD$
*/
#ifndef _DEV_CFI_VAR_H_
#define _DEV_CFI_VAR_H_
struct cfi_region {
u_int r_blocks;
u_int r_blksz;
};
struct cfi_softc {
device_t sc_dev;
struct resource *sc_res;
bus_space_handle_t sc_handle;
bus_space_tag_t sc_tag;
int sc_rid;
u_int sc_size; /* Flash size. */
u_int sc_width; /* Interface width. */
u_int sc_regions; /* Erase regions. */
struct cfi_region *sc_region; /* Array of region info. */
u_int sc_cmdset;
u_int sc_erase_timeout;
u_int sc_write_timeout;
struct cdev *sc_nod;
struct proc *sc_opened; /* Process that has us opened. */
u_char *sc_wrbuf;
u_int sc_wrbufsz;
u_int sc_wrofs;
u_int sc_writing;
};
extern char cfi_driver_name[];
extern devclass_t cfi_devclass;
extern devclass_t cfi_diskclass;
int cfi_probe(device_t);
int cfi_attach(device_t);
int cfi_detach(device_t);
uint32_t cfi_read_raw(struct cfi_softc *, u_int);
uint32_t cfi_read(struct cfi_softc *, u_int);
uint8_t cfi_read_qry(struct cfi_softc *, u_int);
int cfi_write_block(struct cfi_softc *);
int cfi_block_start(struct cfi_softc *, u_int);
int cfi_block_finish(struct cfi_softc *);
#ifdef CFI_SUPPORT_STRATAFLASH
int cfi_intel_get_factory_pr(struct cfi_softc *sc, uint64_t *);
int cfi_intel_get_oem_pr(struct cfi_softc *sc, uint64_t *);
int cfi_intel_set_oem_pr(struct cfi_softc *sc, uint64_t);
int cfi_intel_get_plr(struct cfi_softc *sc, uint32_t *);
int cfi_intel_set_plr(struct cfi_softc *sc);
#endif /* CFI_SUPPORT_STRATAFLASH */
#endif /* _DEV_CFI_VAR_H_ */