patch-2.4.3 linux/drivers/scsi/aic7xxx/aic7xxx_93cx6.h

• Lines: 93
• Date: Sun Mar 4 14:30:18 2001
• Orig file: v2.4.2/linux/drivers/scsi/aic7xxx/aic7xxx_93cx6.h
• Orig date: Wed Dec 31 16:00:00 1969

diff -u --recursive --new-file v2.4.2/linux/drivers/scsi/aic7xxx/aic7xxx_93cx6.h linux/drivers/scsi/aic7xxx/aic7xxx_93cx6.h
@@ -0,0 +1,92 @@
+/*
+ * 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. The name of the author may not 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 Public License ("GPL").
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``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 OR CONTRIBUTORS 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.
+ *
+ * $Id: //depot/src/aic7xxx/aic7xxx_93cx6.h#5 $
+ *
+ * $FreeBSD: src/sys/dev/aic7xxx/aic7xxx_93cx6.h,v 1.8 2000/11/10 20:13:41 gibbs Exp $
+ */
+#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 read_seeprom(struct seeprom_descriptor *sd, uint16_t *buf,
+		 u_int start_addr, u_int count);
+int verify_cksum(struct seeprom_config *sc);
+
+#endif /* _AIC7XXX_93CX6_H_ */