--- sys/i386/bios/apm.c.orig	Sun Nov  9 18:17:23 2003
+++ sys/i386/bios/apm.c	Fri Mar  5 17:21:42 2004
@@ -299,12 +299,161 @@
 	return (sc->bios.r.ebx & 0xffff);
 }
  
+
+#ifndef KLD_MODULE
+#include <pci/pcivar.h>
+#if __FreeBSD_version >= 500001
+#include <machine/pci_cfgreg.h>
+#endif
+#define APM_FIVA_HACK
+#endif
+
+#ifdef APM_FIVA_HACK
+/*
+ * CASSIOPEIA FIVA suspend/resume hack by iwasaki@FreeBSD.org
+ * The following hack was done by the translation from the FIVA
+ * ACPI data blocks (_PTS and _WAK) into C code. 
+ */
+
+/* FIVA _PTS (Prepare To Sleep) */
+static void
+apm_fiva_pts(void)
+{
+	u_int8_t	*bdatap, bdata;
+#if __FreeBSD_version < 500001
+	pcicfgregs	cfg;
+#endif
+
+	/*
+	 * Store(0x85, \_SB_.PCI0.ISA_.BCMD)
+	 *	[aml_region_write(0, 0, 0x85, 0x6ffff2c, 0x0, 0x8)]
+	 */
+	pmap_kenter((vm_offset_t)ptvmmap, (0x6ffff2c) & ~PAGE_MASK);
+	bdatap = (u_int8_t *) &ptvmmap[0x6ffff2c & PAGE_MASK];
+	*bdatap = 0x85;
+
+	/*
+	 * Store(0x0, \_SB_.PCI0.ISA_.SMIC)
+	 *	[aml_region_write(1, 0, 0x0, 0x8038, 0x0, 0x8)]
+	 */
+	outb(0x8038, 0x0);
+
+	/*
+	 * Store(0x81, \_SB_.PCI0.ISA_.BCMD)
+	 *	[aml_region_write(0, 0, 0x81, 0x6ffff2c, 0x0, 0x8)]
+	 */
+	*bdatap = 0x81;
+
+	/*
+	 * Store(0x0, \_SB_.PCI0.ISA_.SMIC)
+	 *	[aml_region_write(1, 0, 0x0, 0x8038, 0x0, 0x8)]
+	 */
+	outb(0x8038, 0x0);
+
+	/*
+	 * Store(0x0, \_SB_.PCI0.PM__.PPCM)
+	 *	[aml_region_write(2, 1, 0x0, 0x0, 0x454, 0x1)]
+	 * Note: pciconf -v -l gives us the following;
+	 * chip1@pci0:17:0:
+	 *	class=0x068000 card=0x00000000 chip=0x710110b9 rev=0x00 hdr=0x00
+	 *	    vendor   = 'Acer Labs Inc.'
+	 *	    device   = 'M7101 Power Management Controller'
+	 *	    class    = bridge
+	 *	    subclass = PCI-unknown
+	 */
+#if __FreeBSD_version >= 500001
+	if (!pci_cfgregopen())
+		return;
+	bdata = pci_cfgregread(0, 17, 0, 0x8a, 1);
+	bdata &= ~(1 << 4);
+	if (!pci_cfgregopen())
+		return;
+	pci_cfgregwrite(0, 17, 0, 0x8a, bdata, 1);
+#else
+	cfg.bus = 0; cfg.slot = 17; cfg.func = 0;
+	bdata = (u_int8_t)pci_cfgread(&cfg, 0x8a, 1);
+	bdata &= ~(1 << 4);
+	pci_cfgwrite(&cfg, 0x8a, (u_int32_t)bdata, 1);
+#endif
+
+	/*
+	 * Store(0x0, \_SB_.PCI0.PM__.PVGA)
+	 *	[aml_region_write(2, 1, 0x0, 0x0, 0x455, 0x1)]
+	 */
+#if __FreeBSD_version >= 500001
+	if (!pci_cfgregopen())
+		return;
+	bdata = pci_cfgregread(0, 17, 0, 0x8a, 1);
+	bdata &= ~(1 << 5);
+	if (!pci_cfgregopen())
+		return;
+	pci_cfgregwrite(0, 17, 0, 0x8a, bdata, 1);
+#else
+	bdata = (u_int8_t)pci_cfgread(&cfg, 0x8a, 1);
+	bdata &= ~(1 << 5);
+	pci_cfgwrite(&cfg, 0x8a, (u_int32_t)bdata, 1);
+#endif
+
+	pmap_kremove((vm_offset_t)ptvmmap);
+}
+
+/* FIVA _WAK (Wakeup) */
+static void
+apm_fiva_wak(void)
+{
+	u_int8_t	bdata;
+#if __FreeBSD_version < 500001
+	pcicfgregs	cfg;
+#endif
+
+	/*
+	 * Store(0x1, \_SB_.PCI0.PM__.PPCM)
+	 *	[aml_region_write(2, 1, 0x1, 0x0, 0x454, 0x1)]
+	 */
+#if __FreeBSD_version >= 500001
+	if (!pci_cfgregopen())
+		return;
+	bdata = pci_cfgregread(0, 17, 0, 0x8a, 1);
+	bdata |= (1 << 4);
+	if (!pci_cfgregopen())
+		return;
+	pci_cfgregwrite(0, 17, 0, 0x8a, bdata, 1);
+#else
+	cfg.bus = 0; cfg.slot = 17; cfg.func = 0;
+	bdata = (u_int8_t)pci_cfgread(&cfg, 0x8a, 1);
+	bdata |= (1 << 4);
+	pci_cfgwrite(&cfg, 0x8a, (u_int32_t)bdata, 1);
+#endif
+
+	/*
+	 * Store(0x1, \_SB_.PCI0.PM__.PVGA)
+	 *	[aml_region_write(2, 1, 0x1, 0x0, 0x455, 0x1)]
+	 */
+#if __FreeBSD_version >= 500001
+	if (!pci_cfgregopen())
+		return;
+	bdata = pci_cfgregread(0, 17, 0, 0x8a, 1);
+	bdata |= (1 << 5);
+	if (!pci_cfgregopen())
+		return;
+	pci_cfgregwrite(0, 17, 0, 0x8a, bdata, 1);
+#else
+	bdata = (u_int8_t)pci_cfgread(&cfg, 0x8a, 1);
+	bdata |= (1 << 5);
+	pci_cfgwrite(&cfg, 0x8a, (u_int32_t)bdata, 1);
+#endif
+}
+#endif
+
 /* suspend entire system */
 static int
 apm_suspend_system(int state)
 {
 	struct apm_softc *sc = &apm_softc;
  
+#ifdef APM_FIVA_HACK
+	apm_fiva_pts();
+#endif
 	sc->bios.r.eax = (APM_BIOS << 8) | APM_SETPWSTATE;
 	sc->bios.r.ebx = PMDV_ALLDEV;
 	sc->bios.r.ecx = state;
@@ -605,6 +754,9 @@
 		return;
 
 	sc->suspending = 0;
+#ifdef APM_FIVA_HACK
+	apm_fiva_wak();
+#endif
 	if (sc->initialized) {
 		apm_execute_hook(hook[APM_HOOK_RESUME]);
 		DEVICE_RESUME(root_bus);