Initial FreeBSD OSPM (operating system power management) modules for

ACPICA.  Most of these are still works in progress.  Support exists for:

 - Fixed feature and control method power, lid and sleep buttons.
 - Detection of ISA PnP devices using ACPI namespace.
 - Detection of PCI root busses using ACPI namespace.
 - CPU throttling and sleep states (incomplete)
 - Thermal monitoring and cooling control (incomplete)
 - Interface to platform embedded controllers (mostly complete)
 - ACPI timer (incomplete)
 - Simple userland control of sleep states.
 - Shutdown and poweroff.

1 files changed, 343 insertions, 0 deletions

diff --git a/sys/dev/acpica/acpi_resource.c b/sys/dev/acpica/acpi_resource.c
new file mode 100644
index 0000000..3581ff7
--- /dev/null
+++ b/sys/dev/acpica/acpi_resource.c
@@ -0,0 +1,343 @@
+/*-
+ * Copyright (c) 2000 Michael Smith
+ * Copyright (c) 2000 BSDi
+ * 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. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * 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.
+ *
+ *	$FreeBSD$
+ */
+
+#include "opt_acpi.h"
+#include <sys/param.h>
+#include <sys/kernel.h>
+#include <sys/bus.h>
+#include <machine/bus.h>
+#include <machine/resource.h>
+
+#include "acpi.h"
+
+#include <dev/acpica/acpivar.h>
+
+/*
+ * Fetch a device's resources and associate them with the device.
+ *
+ * Note that it might be nice to also locate ACPI-specific resource items, such
+ * as GPE bits.
+ */
+ACPI_STATUS
+acpi_parse_resources(device_t dev, ACPI_HANDLE handle, struct acpi_parse_resource_set *set)
+{
+    ACPI_BUFFER		buf;
+    RESOURCE		*res;
+    char		*curr, *last;
+    ACPI_STATUS		status;
+    int			i;
+    void		*context;
+
+    /*
+     * Fetch the device resources
+     */
+    if (((status = acpi_GetIntoBuffer(handle, AcpiGetPossibleResources, &buf)) != AE_OK) &&
+	((status = acpi_GetIntoBuffer(handle, AcpiGetCurrentResources, &buf)) != AE_OK)) {
+	device_printf(dev, "can't fetch ACPI resources - %s\n", acpi_strerror(status));
+	return(status);
+    }
+
+#ifdef ACPI_RES_DEBUG
+    device_printf(dev, "got %d bytes of resources\n", buf.Length);
+#endif
+    set->set_init(dev, &context);
+
+    /*
+     * Iterate through the resources
+     */
+    curr = buf.Pointer;
+    last = (char *)buf.Pointer + buf.Length;
+    while (curr < last) {
+	res = (RESOURCE *)curr;
+	curr += res->Length;
+
+	/*
+	 * Handle the individual resource types
+	 */
+	switch(res->Id) {
+	case EndTag:
+#ifdef ACPI_RES_DEBUG
+	    device_printf(dev, "EndTag\n");
+#endif
+	    curr = last;
+	    break;
+
+	case FixedIo:
+#ifdef ACPI_RES_DEBUG
+	    device_printf(dev, "FixedIo 0x%x/%d\n", res->Data.FixedIo.BaseAddress, res->Data.FixedIo.RangeLength);
+#endif
+	    set->set_ioport(dev, context, res->Data.FixedIo.BaseAddress, res->Data.FixedIo.RangeLength);
+	    break;
+
+	case Io:
+	    if (res->Data.Io.MinBaseAddress == res->Data.Io.MaxBaseAddress) {
+#ifdef ACPI_RES_DEBUG
+		device_printf(dev, "Io 0x%x/%d\n", res->Data.Io.MinBaseAddress, res->Data.Io.RangeLength);
+#endif
+		set->set_ioport(dev, context, res->Data.Io.MinBaseAddress, res->Data.Io.RangeLength);
+	    } else {
+#ifdef ACPI_RES_DEBUG
+		device_printf(dev, "Io 0x%x-0x%x/%d\n", res->Data.Io.MinBaseAddress, res->Data.Io.MaxBaseAddress, 
+				 res->Data.Io.RangeLength);
+#endif
+		set->set_iorange(dev, context, res->Data.Io.MinBaseAddress, res->Data.Io.MaxBaseAddress, 
+				 res->Data.Io.RangeLength, res->Data.Io.Alignment);
+	    }
+	    break;
+
+	case FixedMemory32:
+#ifdef ACPI_RES_DEBUG
+	    device_printf(dev, "FixedMemory32 0x%x/%d\n", res->Data.FixedMemory32.RangeBaseAddress, 
+			    res->Data.FixedMemory32.RangeLength);
+#endif
+	    set->set_memory(dev, context, res->Data.FixedMemory32.RangeBaseAddress, 
+			    res->Data.FixedMemory32.RangeLength);
+	    break;
+
+	case Memory32:
+	    if (res->Data.Memory32.MinBaseAddress == res->Data.Memory32.MaxBaseAddress) {
+#ifdef ACPI_RES_DEBUG
+		device_printf(dev, "Memory32 0x%x/%d\n", res->Data.Memory32.MinBaseAddress, 
+			      res->Data.Memory32.RangeLength);
+#endif
+		set->set_memory(dev, context, res->Data.Memory32.MinBaseAddress, res->Data.Memory32.RangeLength);
+	    } else {
+#ifdef ACPI_RES_DEBUG
+		device_printf(dev, "Memory32 0x%x-0x%x/%d\n", res->Data.Memory32.MinBaseAddress, 
+			      res->Data.Memory32.MaxBaseAddress, res->Data.Memory32.RangeLength);
+#endif
+		set->set_memoryrange(dev, context, res->Data.Memory32.MinBaseAddress, res->Data.Memory32.MaxBaseAddress,
+				     res->Data.Memory32.RangeLength, res->Data.Memory32.Alignment);
+	    }
+	    break;
+
+	case Memory24:
+	    if (res->Data.Memory24.MinBaseAddress == res->Data.Memory24.MaxBaseAddress) {
+#ifdef ACPI_RES_DEBUG
+		device_printf(dev, "Memory24 0x%x/%d\n", res->Data.Memory24.MinBaseAddress, 
+			      res->Data.Memory24.RangeLength);
+#endif
+		set->set_memory(dev, context, res->Data.Memory24.MinBaseAddress, res->Data.Memory24.RangeLength);
+	    } else {
+#ifdef ACPI_RES_DEBUG
+		device_printf(dev, "Memory24 0x%x-0x%x/%d\n", res->Data.Memory24.MinBaseAddress, 
+			      res->Data.Memory24.MaxBaseAddress, res->Data.Memory24.RangeLength);
+#endif
+		set->set_memoryrange(dev, context, res->Data.Memory24.MinBaseAddress, res->Data.Memory24.MaxBaseAddress,
+				     res->Data.Memory24.RangeLength, res->Data.Memory24.Alignment);
+	    }
+	    break;
+
+	case Irq:
+	    for (i = 0; i < res->Data.Irq.NumberOfInterrupts; i++) {
+#ifdef ACPI_RES_DEBUG
+		device_printf(dev, "Irq %d\n", res->Data.Irq.Interrupts[i]);
+#endif
+		set->set_irq(dev, context, res->Data.Irq.Interrupts[i]);
+	    }
+	    break;
+	    
+	case Dma:
+	    for (i = 0; i < res->Data.Dma.NumberOfChannels; i++) {
+#ifdef ACPI_RES_DEBUG
+		device_printf(dev, "Drq %d\n", res->Data.Dma.Channels[i]);
+#endif
+		set->set_drq(dev, context, res->Data.Dma.Channels[i]);
+	    }
+	    break;
+
+	case StartDependentFunctions:
+#ifdef ACPI_RES_DEBUG
+	    device_printf(dev, "start dependant functions");
+#endif
+	    set->set_start_dependant(dev, context, res->Data.StartDependentFunctions.CompatibilityPriority);
+	    break;
+
+	case EndDependentFunctions:
+#ifdef ACPI_RES_DEBUG
+	    device_printf(dev, "end dependant functions");
+#endif
+	    set->set_end_dependant(dev, context);
+	    break;
+
+	case Address32:
+	    device_printf(dev, "unimplemented Address32 resource\n");
+	    break;
+
+	case Address16:
+	    device_printf(dev, "unimplemented Address16 resource\n");
+	    break;
+
+	case ExtendedIrq:
+	    device_printf(dev, "unimplemented ExtendedIrq resource\n");
+	    break;
+
+	case VendorSpecific:
+	    device_printf(dev, "unimplemented VendorSpecific resource\n");
+	    break;
+	default:
+	    break;
+	}
+    }    
+    AcpiOsFree(buf.Pointer);
+    set->set_done(dev, context);
+    return(AE_OK);
+}
+
+static void	acpi_res_set_init(device_t dev, void **context);
+static void	acpi_res_set_done(device_t dev, void *context);
+static void	acpi_res_set_ioport(device_t dev, void *context, u_int32_t base, u_int32_t length);
+static void	acpi_res_set_iorange(device_t dev, void *context, u_int32_t low, u_int32_t high, 
+				     u_int32_t length, u_int32_t align);
+static void	acpi_res_set_memory(device_t dev, void *context, u_int32_t base, u_int32_t length);
+static void	acpi_res_set_memoryrange(device_t dev, void *context, u_int32_t low, u_int32_t high, 
+					 u_int32_t length, u_int32_t align);
+static void	acpi_res_set_irq(device_t dev, void *context, u_int32_t irq);
+static void	acpi_res_set_drq(device_t dev, void *context, u_int32_t drq);
+static void	acpi_res_set_start_dependant(device_t dev, void *context, int preference);
+static void	acpi_res_set_end_dependant(device_t dev, void *context);
+
+struct acpi_parse_resource_set acpi_res_parse_set = {
+    acpi_res_set_init,
+    acpi_res_set_done,
+    acpi_res_set_ioport,
+    acpi_res_set_iorange,
+    acpi_res_set_memory,
+    acpi_res_set_memoryrange,
+    acpi_res_set_irq,
+    acpi_res_set_drq,
+    acpi_res_set_start_dependant,
+    acpi_res_set_end_dependant
+};
+
+struct acpi_res_context {
+    int		ar_nio;
+    int		ar_nmem;
+    int		ar_nirq;
+};
+
+static void
+acpi_res_set_init(device_t dev, void **context)
+{
+    struct acpi_res_context	*cp;
+
+    if ((cp = AcpiOsAllocate(sizeof(*cp))) != NULL) {
+	bzero(cp, sizeof(*cp));
+	*context = cp;
+    }
+}
+
+static void
+acpi_res_set_done(device_t dev, void *context)
+{
+    struct acpi_res_context	*cp = (struct acpi_res_context *)context;
+
+    if (cp == NULL)
+	return;
+    AcpiOsFree(cp);
+}
+
+static void
+acpi_res_set_ioport(device_t dev, void *context, u_int32_t base, u_int32_t length)
+{
+    struct acpi_res_context	*cp = (struct acpi_res_context *)context;
+
+    if (cp == NULL)
+	return;
+    bus_set_resource(dev, SYS_RES_IOPORT, cp->ar_nio++, base, length);
+}
+
+static void
+acpi_res_set_iorange(device_t dev, void *context, u_int32_t low, u_int32_t high, u_int32_t length, u_int32_t align)
+{
+    struct acpi_res_context	*cp = (struct acpi_res_context *)context;
+
+    if (cp == NULL)
+	return;
+    device_printf(dev, "I/O range not supported\n");
+}
+
+static void
+acpi_res_set_memory(device_t dev, void *context, u_int32_t base, u_int32_t length)
+{
+    struct acpi_res_context	*cp = (struct acpi_res_context *)context;
+
+    if (cp == NULL)
+	return;
+    bus_set_resource(dev, SYS_RES_MEMORY, cp->ar_nmem++, base, length);
+}
+
+static void
+acpi_res_set_memoryrange(device_t dev, void *context, u_int32_t low, u_int32_t high, u_int32_t length, u_int32_t align)
+{
+    struct acpi_res_context	*cp = (struct acpi_res_context *)context;
+
+    if (cp == NULL)
+	return;
+    device_printf(dev, "memory range not supported\n");
+}
+
+static void
+acpi_res_set_irq(device_t dev, void *context, u_int32_t irq)
+{
+    struct acpi_res_context	*cp = (struct acpi_res_context *)context;
+
+    if (cp == NULL)
+	return;
+    bus_set_resource(dev, SYS_RES_IRQ, cp->ar_nirq++, irq, 1);
+}
+
+static void
+acpi_res_set_drq(device_t dev, void *context, u_int32_t drq)
+{
+    struct acpi_res_context	*cp = (struct acpi_res_context *)context;
+
+    if (cp == NULL)
+	return;
+    device_printf(dev, "DRQ not supported\n");
+}
+
+static void
+acpi_res_set_start_dependant(device_t dev, void *context, int preference)
+{
+    struct acpi_res_context	*cp = (struct acpi_res_context *)context;
+
+    if (cp == NULL)
+	return;
+    device_printf(dev, "dependant functions not supported");
+}
+
+static void
+acpi_res_set_end_dependant(device_t dev, void *context)
+{
+    struct acpi_res_context	*cp = (struct acpi_res_context *)context;
+
+    if (cp == NULL)
+	return;
+}