mirror of
https://github.com/torvalds/linux.git
synced 2024-12-26 21:02:19 +00:00
1da177e4c3
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
103 lines
3.6 KiB
C
103 lines
3.6 KiB
C
/*
|
|
* Interface to the 93C46/56 serial EEPROM that is used to store BIOS
|
|
* settings for the aic7xxx based adaptec SCSI controllers. It can
|
|
* also be used for 93C26 and 93C06 serial EEPROMS.
|
|
*
|
|
* Copyright (c) 1994, 1995, 2000 Justin T. Gibbs.
|
|
* 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,
|
|
* without modification.
|
|
* 2. Redistributions in binary form must reproduce at minimum a disclaimer
|
|
* substantially similar to the "NO WARRANTY" disclaimer below
|
|
* ("Disclaimer") and any redistribution must be conditioned upon
|
|
* including a substantially similar Disclaimer requirement for further
|
|
* binary redistribution.
|
|
* 3. Neither the names of the above-listed copyright holders nor the names
|
|
* of any contributors may be used to endorse or promote products derived
|
|
* from this software without specific prior written permission.
|
|
*
|
|
* Alternatively, this software may be distributed under the terms of the
|
|
* GNU General Public License ("GPL") version 2 as published by the Free
|
|
* Software Foundation.
|
|
*
|
|
* NO WARRANTY
|
|
* 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 MERCHANTIBILITY AND FITNESS FOR
|
|
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
|
|
* HOLDERS OR CONTRIBUTORS BE LIABLE FOR 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 DAMAGES.
|
|
*
|
|
* $Id: //depot/aic7xxx/aic7xxx/aic7xxx_93cx6.h#12 $
|
|
*
|
|
* $FreeBSD$
|
|
*/
|
|
#ifndef _AIC7XXX_93CX6_H_
|
|
#define _AIC7XXX_93CX6_H_
|
|
|
|
typedef enum {
|
|
C46 = 6,
|
|
C56_66 = 8
|
|
} seeprom_chip_t;
|
|
|
|
struct seeprom_descriptor {
|
|
struct ahc_softc *sd_ahc;
|
|
u_int sd_control_offset;
|
|
u_int sd_status_offset;
|
|
u_int sd_dataout_offset;
|
|
seeprom_chip_t sd_chip;
|
|
uint16_t sd_MS;
|
|
uint16_t sd_RDY;
|
|
uint16_t sd_CS;
|
|
uint16_t sd_CK;
|
|
uint16_t sd_DO;
|
|
uint16_t sd_DI;
|
|
};
|
|
|
|
/*
|
|
* This function will read count 16-bit words from the serial EEPROM and
|
|
* return their value in buf. The port address of the aic7xxx serial EEPROM
|
|
* control register is passed in as offset. The following parameters are
|
|
* also passed in:
|
|
*
|
|
* CS - Chip select
|
|
* CK - Clock
|
|
* DO - Data out
|
|
* DI - Data in
|
|
* RDY - SEEPROM ready
|
|
* MS - Memory port mode select
|
|
*
|
|
* A failed read attempt returns 0, and a successful read returns 1.
|
|
*/
|
|
|
|
#define SEEPROM_INB(sd) \
|
|
ahc_inb(sd->sd_ahc, sd->sd_control_offset)
|
|
#define SEEPROM_OUTB(sd, value) \
|
|
do { \
|
|
ahc_outb(sd->sd_ahc, sd->sd_control_offset, value); \
|
|
ahc_flush_device_writes(sd->sd_ahc); \
|
|
} while(0)
|
|
|
|
#define SEEPROM_STATUS_INB(sd) \
|
|
ahc_inb(sd->sd_ahc, sd->sd_status_offset)
|
|
#define SEEPROM_DATA_INB(sd) \
|
|
ahc_inb(sd->sd_ahc, sd->sd_dataout_offset)
|
|
|
|
int ahc_read_seeprom(struct seeprom_descriptor *sd, uint16_t *buf,
|
|
u_int start_addr, u_int count);
|
|
int ahc_write_seeprom(struct seeprom_descriptor *sd, uint16_t *buf,
|
|
u_int start_addr, u_int count);
|
|
int ahc_verify_cksum(struct seeprom_config *sc);
|
|
|
|
#endif /* _AIC7XXX_93CX6_H_ */
|