--- /dev/null
+/*
+ comedi/drivers/plx9052.h
+ Definitions for the PLX-9052 PCI interface chip
+
+ Copyright (C) 2002 MEV Ltd. <http://www.mev.co.uk/>
+
+ COMEDI - Linux Control and Measurement Device Interface
+ Copyright (C) 2000 David A. Schleef <ds@schleef.org>
+
+ 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.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+
+*/
+
+#ifndef _PLX9052_H_
+#define _PLX9052_H_
+
+/*
+ * PLX PCI9052 INTCSR register (used for PCI236 card).
+ */
+#define PLX9052_INTCSR 0x4C /* Offset in Local Configuration Registers */
+/* Local Interrupt 1 Enable */
+#define PLX9052_INTCSR_LI1ENAB_MASK 0x0001 /* (post-shift) */
+#define PLX9052_INTCSR_LI1ENAB_SHIFT 0
+#define PLX9052_INTCSR_LI1ENAB_VAL_DISABLED 0 /* (pre-shift) */
+#define PLX9052_INTCSR_LI1ENAB_VAL_ENABLED 1 /* (pre-shift) */
+#define PLX9052_INTCSR_LI1ENAB_SHIFTED_DISABLED \
+ (PLX9052_INTCSR_LI1ENAB_VAL_DISABLED << PLX9052_INTCSR_LI1ENAB_SHIFT)
+#define PLX9052_INTCSR_LI1ENAB_SHIFTED_ENABLED \
+ (PLX9052_INTCSR_LI1ENAB_VAL_ENABLED << PLX9052_INTCSR_LI1ENAB_SHIFT)
+/* Local Interrupt 1 Polarity */
+#define PLX9052_INTCSR_LI1POL_MASK 0x0002 /* (post-shift) */
+#define PLX9052_INTCSR_LI1POL_SHIFT 1
+#define PLX9052_INTCSR_LI1POL_VAL_LOW 0 /* (pre-shift) */
+#define PLX9052_INTCSR_LI1POL_VAL_HIGH 1 /* (pre-shift) */
+#define PLX9052_INTCSR_LI1POL_SHIFTED_LOW \
+ (PLX9052_INTCSR_LI1POL_VAL_LOW << PLX9052_INTCSR_LI1POL_SHIFT)
+#define PLX9052_INTCSR_LI1POL_SHIFTED_HIGH \
+ (PLX9052_INTCSR_LI1POL_VAL_HIGH << PLX9052_INTCSR_LI1POL_SHIFT)
+/* Local Interrupt 1 Status (read-only) */
+#define PLX9052_INTCSR_LI1STAT_MASK 0x0004 /* (post-shift) */
+#define PLX9052_INTCSR_LI1STAT_SHIFT 2
+#define PLX9052_INTCSR_LI1STAT_VAL_INACTIVE 0 /* (pre-shift) */
+#define PLX9052_INTCSR_LI1STAT_VAL_ACTIVE 1 /* (pre-shift) */
+#define PLX9052_INTCSR_LI1STAT_SHIFTED_INACTIVE \
+ (PLX9052_INTCSR_LI1STAT_VAL_INACTIVE << PLX9052_INTCSR_LI1STAT_SHIFT)
+#define PLX9052_INTCSR_LI1STAT_SHIFTED_ACTIVE \
+ (PLX9052_INTCSR_LI1STAT_VAL_ACTIVE << PLX9052_INTCSR_LI1STAT_SHIFT)
+/* Local Interrupt 2 Enable */
+#define PLX9052_INTCSR_LI2ENAB_MASK 0x0008 /* (post-shift) */
+#define PLX9052_INTCSR_LI2ENAB_SHIFT 3
+#define PLX9052_INTCSR_LI2ENAB_VAL_DISABLED 0 /* (pre-shift) */
+#define PLX9052_INTCSR_LI2ENAB_VAL_ENABLED 1 /* (pre-shift) */
+#define PLX9052_INTCSR_LI2ENAB_SHIFTED_DISABLED \
+ (PLX9052_INTCSR_LI2ENAB_VAL_DISABLED << PLX9052_INTCSR_LI2ENAB_SHIFT)
+#define PLX9052_INTCSR_LI2ENAB_SHIFTED_ENABLED \
+ (PLX9052_INTCSR_LI2ENAB_VAL_ENABLED << PLX9052_INTCSR_LI2ENAB_SHIFT)
+/* Local Interrupt 2 Polarity */
+#define PLX9052_INTCSR_LI2POL_MASK 0x0010 /* (post-shift) */
+#define PLX9052_INTCSR_LI2POL_SHIFT 4
+#define PLX9052_INTCSR_LI2POL_VAL_LOW 0 /* (pre-shift) */
+#define PLX9052_INTCSR_LI2POL_VAL_HIGH 1 /* (pre-shift) */
+#define PLX9052_INTCSR_LI2POL_SHIFTED_LOW \
+ (PLX9052_INTCSR_LI2POL_VAL_LOW << PLX9052_INTCSR_LI2POL_SHIFT)
+#define PLX9052_INTCSR_LI2POL_SHIFTED_HIGH \
+ (PLX9052_INTCSR_LI2POL_VAL_HIGH << PLX9052_INTCSR_LI2POL_SHIFT)
+/* Local Interrupt 2 Status (read-only) */
+#define PLX9052_INTCSR_LI2STAT_MASK 0x0020 /* (post-shift) */
+#define PLX9052_INTCSR_LI2STAT_SHIFT 5
+#define PLX9052_INTCSR_LI2STAT_VAL_INACTIVE 0 /* (pre-shift) */
+#define PLX9052_INTCSR_LI2STAT_VAL_ACTIVE 1 /* (pre-shift) */
+#define PLX9052_INTCSR_LI2STAT_SHIFTED_INACTIVE \
+ (PLX9052_INTCSR_LI2STAT_VAL_INACTIVE << PLX9052_INTCSR_LI2STAT_SHIFT)
+#define PLX9052_INTCSR_LI2STAT_SHIFTED_ACTIVE \
+ (PLX9052_INTCSR_LI2STAT_VAL_ACTIVE << PLX9052_INTCSR_LI2STAT_SHIFT)
+/* PCI Interrupt Enable */
+#define PLX9052_INTCSR_PCIENAB_MASK 0x0040 /* (post-shift) */
+#define PLX9052_INTCSR_PCIENAB_SHIFT 6
+#define PLX9052_INTCSR_PCIENAB_VAL_DISABLED 0 /* (pre-shift) */
+#define PLX9052_INTCSR_PCIENAB_VAL_ENABLED 1 /* (pre-shift) */
+#define PLX9052_INTCSR_PCIENAB_SHIFTED_DISABLED \
+ (PLX9052_INTCSR_PCIENAB_VAL_DISABLED << PLX9052_INTCSR_PCIENAB_SHIFT)
+#define PLX9052_INTCSR_PCIENAB_SHIFTED_ENABLED \
+ (PLX9052_INTCSR_PCIENAB_VAL_ENABLED << PLX9052_INTCSR_PCIENAB_SHIFT)
+/* Software Interrupt */
+#define PLX9052_INTCSR_SOFTINT_MASK 0x0080 /* (post-shift) */
+#define PLX9052_INTCSR_SOFTINT_SHIFT 7
+#define PLX9052_INTCSR_SOFTINT_VAL_UNASSERTED 0 /* (pre-shift) */
+#define PLX9052_INTCSR_SOFTINT_VAL_ASSERTED 1 /* (pre-shift) */
+#define PLX9052_INTCSR_SOFTINT_SHIFTED_UNASSERTED \
+ (PLX9052_INTCSR_SOFTINT_VAL_UNASSERTED << PLX9052_INTCSR_SOFTINT_SHIFT)
+#define PLX9052_INTCSR_SOFTINT_SHIFTED_ASSERTED \
+ (PLX9052_INTCSR_SOFTINT_VAL_ASSERTED << PLX9052_INTCSR_SOFTINT_SHIFT)
+/* Local Interrupt 1 Select Enable */
+#define PLX9052_INTCSR_LI1SEL_MASK 0x0100 /* (post-shift) */
+#define PLX9052_INTCSR_LI1SEL_SHIFT 8
+#define PLX9052_INTCSR_LI1SEL_VAL_LEVEL 0 /* (pre-shift) */
+#define PLX9052_INTCSR_LI1SEL_VAL_EDGE 1 /* (pre-shift) */
+#define PLX9052_INTCSR_LI1SEL_SHIFTED_LEVEL \
+ (PLX9052_INTCSR_LI1SEL_VAL_LEVEL << PLX9052_INTCSR_LI1SEL_SHIFT)
+#define PLX9052_INTCSR_LI1SEL_SHIFTED_EDGE \
+ (PLX9052_INTCSR_LI1SEL_VAL_EDGE << PLX9052_INTCSR_LI1SEL_SHIFT)
+/* Local Interrupt 2 Select Enable */
+#define PLX9052_INTCSR_LI2SEL_MASK 0x0200 /* (post-shift) */
+#define PLX9052_INTCSR_LI2SEL_SHIFT 9
+#define PLX9052_INTCSR_LI2SEL_VAL_LEVEL 0 /* (pre-shift) */
+#define PLX9052_INTCSR_LI2SEL_VAL_EDGE 1 /* (pre-shift) */
+#define PLX9052_INTCSR_LI2SEL_SHIFTED_LEVEL \
+ (PLX9052_INTCSR_LI2SEL_VAL_LEVEL << PLX9052_INTCSR_LI2SEL_SHIFT)
+#define PLX9052_INTCSR_LI2SEL_SHIFTED_EDGE \
+ (PLX9052_INTCSR_LI2SEL_VAL_EDGE << PLX9052_INTCSR_LI2SEL_SHIFT)
+/* Local Edge Triggerable Interrupt 1 Clear Bit */
+#define PLX9052_INTCSR_LI1CLRINT_MASK 0x0400 /* (post-shift) */
+#define PLX9052_INTCSR_LI1CLRINT_SHIFT 10
+#define PLX9052_INTCSR_LI1CLRINT_VAL_UNASSERTED 0 /* (pre-shift) */
+#define PLX9052_INTCSR_LI1CLRINT_VAL_ASSERTED 1 /* (pre-shift) */
+#define PLX9052_INTCSR_LI1CLRINT_SHIFTED_UNASSERTED \
+ (PLX9052_INTCSR_LI1CLRINT_VAL_UNASSERTED << PLX9052_INTCSR_LI1CLRINT_SHIFT)
+#define PLX9052_INTCSR_LI1CLRINT_SHIFTED_ASSERTED \
+ (PLX9052_INTCSR_LI1CLRINT_VAL_ASSERTED << PLX9052_INTCSR_LI1CLRINT_SHIFT)
+/* Local Edge Triggerable Interrupt 2 Clear Bit */
+#define PLX9052_INTCSR_LI2CLRINT_MASK 0x0800 /* (post-shift) */
+#define PLX9052_INTCSR_LI2CLRINT_SHIFT 11
+#define PLX9052_INTCSR_LI2CLRINT_VAL_UNASSERTED 0 /* (pre-shift) */
+#define PLX9052_INTCSR_LI2CLRINT_VAL_ASSERTED 1 /* (pre-shift) */
+#define PLX9052_INTCSR_LI2CLRINT_SHIFTED_UNASSERTED \
+ (PLX9052_INTCSR_LI2CLRINT_VAL_UNASSERTED << PLX9052_INTCSR_LI2CLRINT_SHIFT)
+#define PLX9052_INTCSR_LI2CLRINT_SHIFTED_ASSERTED \
+ (PLX9052_INTCSR_LI2CLRINT_VAL_ASSERTED << PLX9052_INTCSR_LI2CLRINT_SHIFT)
+/* ISA Interface Mode Enable (read-only over PCI bus) */
+#define PLX9052_INTCSR_ISAMODE_MASK 0x1000 /* (post-shift) */
+#define PLX9052_INTCSR_ISAMODE_SHIFT 12
+#define PLX9052_INTCSR_ISAMODE_VAL_DISABLED 0 /* (pre-shift) */
+#define PLX9052_INTCSR_ISAMODE_VAL_ENABLED 1 /* (pre-shift) */
+#define PLX9052_INTCSR_ISAMODE_SHIFTED_DISABLED \
+ (PLX9052_INTCSR_ISAMODE_VAL_DISABLED << PLX9052_INTCSR_ISAMODE_SHIFT)
+#define PLX9052_INTCSR_ISAMODE_SHIFTED_ENABLED \
+ (PLX9052_INTCSR_ISAMODE_VAL_ENABLED << PLX9052_INTCSR_ISAMODE_SHIFT)
+/*
+ * INTCSR values for PCI236.
+ */
+/* Disable interrupt, also clear any interrupt there */
+#define PCI236_INTR_DISABLE ( PLX9052_INTCSR_LI1ENAB_SHIFTED_DISABLED \
+ | PLX9052_INTCSR_LI1POL_SHIFTED_HIGH \
+ | PLX9052_INTCSR_LI2POL_SHIFTED_HIGH \
+ | PLX9052_INTCSR_PCIENAB_SHIFTED_DISABLED \
+ | PLX9052_INTCSR_LI1SEL_SHIFTED_EDGE \
+ | PLX9052_INTCSR_LI1CLRINT_SHIFTED_ASSERTED )
+/* Enable interrupt, also clear any interrupt there. */
+#define PCI236_INTR_ENABLE ( PLX9052_INTCSR_LI1ENAB_SHIFTED_ENABLED \
+ | PLX9052_INTCSR_LI1POL_SHIFTED_HIGH \
+ | PLX9052_INTCSR_LI2POL_SHIFTED_HIGH \
+ | PLX9052_INTCSR_PCIENAB_SHIFTED_ENABLED \
+ | PLX9052_INTCSR_LI1SEL_SHIFTED_EDGE \
+ | PLX9052_INTCSR_LI1CLRINT_SHIFTED_ASSERTED )
+
+#endif /* _PLX9052_H_ */