0ae554237c
infrastructure. It's not perfect, but it's a lot better than what
we've been using so far. The following rules apply to this:
o BSD component names should be capitalised
o Layer names should be taken from the non-CA set for now. We
may elect to add some new BSD-specific layers later.
- Make it possible to turn off selective debugging flags or layers
by listing them in debug.acpi.layer or debug.acpi.level prefixed
with !.
- Fully implement support for avoiding nodes in the ACPI namespace.
Nodes may be listed in the debug.acpi.avoid environment variable;
these nodes and all their children will be ignored (although still
scanned over) by ACPI functions which scan the namespace. Multiple
nodes can be specified, separated by whitespace.
- Implement support for selectively disabling ACPI subsystem components
via the debug.acpi.disable environment variable. The following
components can be disabled:
o bus creation/scanning of the ACPI 'bus'
o children attachment of children to the ACPI 'bus'
o button the acpi_button control-method button driver
o ec the acpi_ec embedded-controller driver
o isa acpi replacement of PnP BIOS for ISA device discovery
o lid the control-method lid switch driver
o pci pci root-bus discovery
o processor CPU power/speed management
o thermal system temperature detection and control
o timer ACPI timecounter
Multiple components may be disabled by specifying their name(s)
separated by whitespace.
- Add support for ioctl registration. ACPI subsystem components may
register ioctl handlers with the /dev/acpi generic ioctl handler,
allowing us to avoid the need for a multitude of /dev/acpi* control
devices, etc.
323 lines
10 KiB
C
323 lines
10 KiB
C
/*-
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* Copyright (c) 2000 Michael Smith
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* Copyright (c) 2000 BSDi
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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#include "opt_acpi.h"
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#include <sys/param.h>
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#include <sys/kernel.h>
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#include <sys/bus.h>
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#include <machine/bus.h>
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#include <machine/resource.h>
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#include "acpi.h"
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#include <dev/acpica/acpivar.h>
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/*
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* Hooks for the ACPI CA debugging infrastructure
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*/
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#define _COMPONENT BUS_MANAGER
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MODULE_NAME("RESOURCE")
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/*
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* Fetch a device's resources and associate them with the device.
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*
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* Note that it might be nice to also locate ACPI-specific resource items, such
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* as GPE bits.
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*/
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ACPI_STATUS
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acpi_parse_resources(device_t dev, ACPI_HANDLE handle, struct acpi_parse_resource_set *set)
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{
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ACPI_BUFFER buf;
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RESOURCE *res;
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char *curr, *last;
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ACPI_STATUS status;
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int i;
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void *context;
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FUNCTION_TRACE(__FUNCTION__);
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/*
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* Fetch the device resources
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*/
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if (((status = acpi_GetIntoBuffer(handle, AcpiGetPossibleResources, &buf)) != AE_OK) &&
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((status = acpi_GetIntoBuffer(handle, AcpiGetCurrentResources, &buf)) != AE_OK)) {
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device_printf(dev, "can't fetch ACPI resources - %s\n", acpi_strerror(status));
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return_ACPI_STATUS(status);
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}
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DEBUG_PRINT(TRACE_RESOURCES, ("got %d bytes of resources\n", buf.Length));
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set->set_init(dev, &context);
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/*
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* Iterate through the resources
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*/
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curr = buf.Pointer;
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last = (char *)buf.Pointer + buf.Length;
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while (curr < last) {
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res = (RESOURCE *)curr;
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curr += res->Length;
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/*
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* Handle the individual resource types
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*/
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switch(res->Id) {
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case EndTag:
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DEBUG_PRINT(TRACE_RESOURCES, ("EndTag\n"));
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curr = last;
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break;
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case FixedIo:
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DEBUG_PRINT(TRACE_RESOURCES, ("FixedIo 0x%x/%d\n", res->Data.FixedIo.BaseAddress, res->Data.FixedIo.RangeLength));
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set->set_ioport(dev, context, res->Data.FixedIo.BaseAddress, res->Data.FixedIo.RangeLength);
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break;
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case Io:
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if (res->Data.Io.MinBaseAddress == res->Data.Io.MaxBaseAddress) {
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DEBUG_PRINT(TRACE_RESOURCES, ("Io 0x%x/%d\n", res->Data.Io.MinBaseAddress, res->Data.Io.RangeLength));
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set->set_ioport(dev, context, res->Data.Io.MinBaseAddress, res->Data.Io.RangeLength);
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} else {
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DEBUG_PRINT(TRACE_RESOURCES, ("Io 0x%x-0x%x/%d\n", res->Data.Io.MinBaseAddress, res->Data.Io.MaxBaseAddress,
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res->Data.Io.RangeLength));
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set->set_iorange(dev, context, res->Data.Io.MinBaseAddress, res->Data.Io.MaxBaseAddress,
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res->Data.Io.RangeLength, res->Data.Io.Alignment);
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}
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break;
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case FixedMemory32:
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DEBUG_PRINT(TRACE_RESOURCES, ("FixedMemory32 0x%x/%d\n", res->Data.FixedMemory32.RangeBaseAddress,
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res->Data.FixedMemory32.RangeLength));
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set->set_memory(dev, context, res->Data.FixedMemory32.RangeBaseAddress,
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res->Data.FixedMemory32.RangeLength);
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break;
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case Memory32:
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if (res->Data.Memory32.MinBaseAddress == res->Data.Memory32.MaxBaseAddress) {
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DEBUG_PRINT(TRACE_RESOURCES, ("Memory32 0x%x/%d\n", res->Data.Memory32.MinBaseAddress,
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res->Data.Memory32.RangeLength));
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set->set_memory(dev, context, res->Data.Memory32.MinBaseAddress, res->Data.Memory32.RangeLength);
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} else {
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DEBUG_PRINT(TRACE_RESOURCES, ("Memory32 0x%x-0x%x/%d\n", res->Data.Memory32.MinBaseAddress,
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res->Data.Memory32.MaxBaseAddress, res->Data.Memory32.RangeLength));
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set->set_memoryrange(dev, context, res->Data.Memory32.MinBaseAddress, res->Data.Memory32.MaxBaseAddress,
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res->Data.Memory32.RangeLength, res->Data.Memory32.Alignment);
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}
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break;
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case Memory24:
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if (res->Data.Memory24.MinBaseAddress == res->Data.Memory24.MaxBaseAddress) {
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DEBUG_PRINT(TRACE_RESOURCES, ("Memory24 0x%x/%d\n", res->Data.Memory24.MinBaseAddress,
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res->Data.Memory24.RangeLength));
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set->set_memory(dev, context, res->Data.Memory24.MinBaseAddress, res->Data.Memory24.RangeLength);
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} else {
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DEBUG_PRINT(TRACE_RESOURCES, ("Memory24 0x%x-0x%x/%d\n", res->Data.Memory24.MinBaseAddress,
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res->Data.Memory24.MaxBaseAddress, res->Data.Memory24.RangeLength));
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set->set_memoryrange(dev, context, res->Data.Memory24.MinBaseAddress, res->Data.Memory24.MaxBaseAddress,
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res->Data.Memory24.RangeLength, res->Data.Memory24.Alignment);
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}
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break;
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case Irq:
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for (i = 0; i < res->Data.Irq.NumberOfInterrupts; i++) {
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DEBUG_PRINT(TRACE_RESOURCES, ("Irq %d\n", res->Data.Irq.Interrupts[i]));
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set->set_irq(dev, context, res->Data.Irq.Interrupts[i]);
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}
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break;
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case Dma:
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for (i = 0; i < res->Data.Dma.NumberOfChannels; i++) {
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DEBUG_PRINT(TRACE_RESOURCES, ("Drq %d\n", res->Data.Dma.Channels[i]));
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set->set_drq(dev, context, res->Data.Dma.Channels[i]);
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}
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break;
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case StartDependentFunctions:
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DEBUG_PRINT(TRACE_RESOURCES, ("start dependant functions"));
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set->set_start_dependant(dev, context, res->Data.StartDependentFunctions.CompatibilityPriority);
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break;
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case EndDependentFunctions:
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DEBUG_PRINT(TRACE_RESOURCES, ("end dependant functions"));
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set->set_end_dependant(dev, context);
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break;
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case Address32:
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DEBUG_PRINT(TRACE_RESOURCES, ("unimplemented Address32 resource\n"));
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break;
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case Address16:
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DEBUG_PRINT(TRACE_RESOURCES, ("unimplemented Address16 resource\n"));
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break;
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case ExtendedIrq:
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DEBUG_PRINT(TRACE_RESOURCES, ("unimplemented ExtendedIrq resource\n"));
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break;
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case VendorSpecific:
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DEBUG_PRINT(TRACE_RESOURCES, ("unimplemented VendorSpecific resource\n"));
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break;
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default:
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break;
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}
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}
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AcpiOsFree(buf.Pointer);
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set->set_done(dev, context);
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return_ACPI_STATUS(AE_OK);
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}
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static void acpi_res_set_init(device_t dev, void **context);
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static void acpi_res_set_done(device_t dev, void *context);
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static void acpi_res_set_ioport(device_t dev, void *context, u_int32_t base, u_int32_t length);
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static void acpi_res_set_iorange(device_t dev, void *context, u_int32_t low, u_int32_t high,
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u_int32_t length, u_int32_t align);
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static void acpi_res_set_memory(device_t dev, void *context, u_int32_t base, u_int32_t length);
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static void acpi_res_set_memoryrange(device_t dev, void *context, u_int32_t low, u_int32_t high,
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u_int32_t length, u_int32_t align);
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static void acpi_res_set_irq(device_t dev, void *context, u_int32_t irq);
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static void acpi_res_set_drq(device_t dev, void *context, u_int32_t drq);
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static void acpi_res_set_start_dependant(device_t dev, void *context, int preference);
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static void acpi_res_set_end_dependant(device_t dev, void *context);
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struct acpi_parse_resource_set acpi_res_parse_set = {
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acpi_res_set_init,
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acpi_res_set_done,
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acpi_res_set_ioport,
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acpi_res_set_iorange,
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acpi_res_set_memory,
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acpi_res_set_memoryrange,
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acpi_res_set_irq,
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acpi_res_set_drq,
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acpi_res_set_start_dependant,
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acpi_res_set_end_dependant
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};
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struct acpi_res_context {
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int ar_nio;
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int ar_nmem;
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int ar_nirq;
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};
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static void
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acpi_res_set_init(device_t dev, void **context)
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{
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struct acpi_res_context *cp;
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if ((cp = AcpiOsAllocate(sizeof(*cp))) != NULL) {
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bzero(cp, sizeof(*cp));
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*context = cp;
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}
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}
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static void
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acpi_res_set_done(device_t dev, void *context)
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{
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struct acpi_res_context *cp = (struct acpi_res_context *)context;
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if (cp == NULL)
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return;
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AcpiOsFree(cp);
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}
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static void
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acpi_res_set_ioport(device_t dev, void *context, u_int32_t base, u_int32_t length)
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{
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struct acpi_res_context *cp = (struct acpi_res_context *)context;
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if (cp == NULL)
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return;
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bus_set_resource(dev, SYS_RES_IOPORT, cp->ar_nio++, base, length);
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}
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static void
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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)
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{
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struct acpi_res_context *cp = (struct acpi_res_context *)context;
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if (cp == NULL)
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return;
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device_printf(dev, "I/O range not supported\n");
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}
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static void
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acpi_res_set_memory(device_t dev, void *context, u_int32_t base, u_int32_t length)
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{
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struct acpi_res_context *cp = (struct acpi_res_context *)context;
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if (cp == NULL)
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return;
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bus_set_resource(dev, SYS_RES_MEMORY, cp->ar_nmem++, base, length);
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}
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static void
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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)
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{
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struct acpi_res_context *cp = (struct acpi_res_context *)context;
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if (cp == NULL)
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return;
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device_printf(dev, "memory range not supported\n");
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}
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static void
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acpi_res_set_irq(device_t dev, void *context, u_int32_t irq)
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{
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struct acpi_res_context *cp = (struct acpi_res_context *)context;
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if (cp == NULL)
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return;
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bus_set_resource(dev, SYS_RES_IRQ, cp->ar_nirq++, irq, 1);
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}
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static void
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acpi_res_set_drq(device_t dev, void *context, u_int32_t drq)
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{
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struct acpi_res_context *cp = (struct acpi_res_context *)context;
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if (cp == NULL)
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return;
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device_printf(dev, "DRQ not supported\n");
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}
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static void
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acpi_res_set_start_dependant(device_t dev, void *context, int preference)
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{
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struct acpi_res_context *cp = (struct acpi_res_context *)context;
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if (cp == NULL)
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return;
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device_printf(dev, "dependant functions not supported");
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}
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static void
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acpi_res_set_end_dependant(device_t dev, void *context)
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{
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struct acpi_res_context *cp = (struct acpi_res_context *)context;
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if (cp == NULL)
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return;
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}
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