diff options
Diffstat (limited to 'drivers/scsi/aic7xxx/aic7xxx_93cx6.h')
| -rw-r--r-- | drivers/scsi/aic7xxx/aic7xxx_93cx6.h | 102 |
1 files changed, 102 insertions, 0 deletions
diff --git a/drivers/scsi/aic7xxx/aic7xxx_93cx6.h b/drivers/scsi/aic7xxx/aic7xxx_93cx6.h new file mode 100644 index 000000000000..859c43ccdd46 --- /dev/null +++ b/drivers/scsi/aic7xxx/aic7xxx_93cx6.h @@ -0,0 +1,102 @@ +/* + * 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_ */ |