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-rw-r--r--include/linux/mfd/janz.h54
1 files changed, 54 insertions, 0 deletions
diff --git a/include/linux/mfd/janz.h b/include/linux/mfd/janz.h
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+++ b/include/linux/mfd/janz.h
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+/*
+ * Common Definitions for Janz MODULbus devices
+ *
+ * Copyright (c) 2010 Ira W. Snyder <iws@ovro.caltech.edu>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ */
+
+#ifndef JANZ_H
+#define JANZ_H
+
+struct janz_platform_data {
+ /* MODULbus Module Number */
+ unsigned int modno;
+};
+
+/* PLX bridge chip onboard registers */
+struct janz_cmodio_onboard_regs {
+ u8 unused1;
+
+ /*
+ * Read access: interrupt status
+ * Write access: interrupt disable
+ */
+ u8 int_disable;
+ u8 unused2;
+
+ /*
+ * Read access: MODULbus number (hex switch)
+ * Write access: interrupt enable
+ */
+ u8 int_enable;
+ u8 unused3;
+
+ /* write-only */
+ u8 reset_assert;
+ u8 unused4;
+
+ /* write-only */
+ u8 reset_deassert;
+ u8 unused5;
+
+ /* read-write access to serial EEPROM */
+ u8 eep;
+ u8 unused6;
+
+ /* write-only access to EEPROM chip select */
+ u8 enid;
+};
+
+#endif /* JANZ_H */