--- /dev/null
+/*
+ * 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_ */
Code Review / kvmfornfv.git / blobdiff