from netbsd: pci interrupt routing code.

also, change a few pcidevs names to match netbsd (and more descriptive).
tested on a bunch of laptops, helps resolving 'pin X unmapped'
problems for (usually) usb and cardbus cntrollers.

1 files changed, 52 insertions, 0 deletions

diff --git a/sys/arch/i386/pci/sis85c503reg.h b/sys/arch/i386/pci/sis85c503reg.h
new file mode 100644
index 00000000000..a96ef90836e
--- /dev/null
+++ b/sys/arch/i386/pci/sis85c503reg.h
@@ -0,0 +1,52 @@
+/*	$NetBSD$	*/
+
+/*
+ * Copyright (c) 1999, by UCHIYAMA Yasushi
+ * 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.
+ * 2. The name of the developer may NOT be used to endorse or promote products
+ *    derived from this software without specific prior written permission.
+ * 
+ * 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. 
+ */
+
+/*
+ * Register definitions for the SiS 85c503 PCI-ISA bridge interrupt controller.
+ */
+
+#define	SIS85C503_CFG_PIRQ_REGSTART	0x41	/* PCI configuration space */
+#define	SIS85C503_CFG_PIRQ_REGEND	0x44
+
+#define	SIS85C503_LEGAL_LINK(link) ((link) >= SIS85C503_CFG_PIRQ_REGSTART && \
+				    (link) <= SIS85C503_CFG_PIRQ_REGEND)
+
+#define	SIS85C503_CFG_PIRQ_REGOFS(regofs) (((regofs) >> 2) << 2)
+#define	SIS85C503_CFG_PIRQ_SHIFT(regofs)				\
+	(((regofs) - SIS85C503_CFG_PIRQ_REGOFS(regofs)) << 3)
+
+#define	SIS85C503_CFG_PIRQ_MASK		0xff
+#define	SIS85C503_CFG_PIRQ_INTR_MASK	0x0f
+
+#define	SIS85C503_CFG_PIRQ_REG(reg, regofs)				\
+	(((reg) >> SIS85C503_CFG_PIRQ_SHIFT(regofs)) & SIS85C503_CFG_PIRQ_MASK)
+
+#define	SIS85C503_CFG_PIRQ_ROUTE_DISABLE 0x80
+
+#define	SIS85C503_PIRQ_MASK		0xdef8
+#define	SIS85C503_LEGAL_IRQ(irq)	((irq) >= 0 && (irq) <= 15 &&	\
+				 ((1 << (irq)) & SIS85C503_PIRQ_MASK) != 0)