/* $NetBSD: acpi_resource.c,v 1.26 2008/04/07 10:16:59 jmcneill Exp $ */ /* * Copyright 2001 Wasabi Systems, Inc. * All rights reserved. * * Written by Jason R. Thorpe for Wasabi Systems, Inc. * * 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. * 3. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * This product includes software developed for the NetBSD Project by * Wasabi Systems, Inc. * 4. The name of Wasabi Systems, Inc. may not be used to endorse * or promote products derived from this software without specific prior * written permission. * * THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``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 WASABI SYSTEMS, INC * 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. */ /*- * 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. */ /* * ACPI resource parsing. */ #include __KERNEL_RCSID(0, "$NetBSD: acpi_resource.c,v 1.26 2008/04/07 10:16:59 jmcneill Exp $"); #include #include #include #include #include #include #define _COMPONENT ACPI_RESOURCE_COMPONENT ACPI_MODULE_NAME("RESOURCE") static ACPI_STATUS acpi_resource_parse_callback(ACPI_RESOURCE *, void *); struct resource_parse_callback_arg { const struct acpi_resource_parse_ops *ops; struct device *dev; void *context; }; static ACPI_STATUS acpi_resource_parse_callback(ACPI_RESOURCE *res, void *context) { struct resource_parse_callback_arg *arg = context; const struct acpi_resource_parse_ops *ops; int i; ACPI_FUNCTION_TRACE(__func__); ops = arg->ops; switch (res->Type) { case ACPI_RESOURCE_TYPE_FIXED_IO: ACPI_DEBUG_PRINT((ACPI_DB_RESOURCES, "FixedIo 0x%x/%d\n", res->Data.FixedIo.Address, res->Data.FixedIo.AddressLength)); if (ops->ioport) (*ops->ioport)(arg->dev, arg->context, res->Data.FixedIo.Address, res->Data.FixedIo.AddressLength); break; case ACPI_RESOURCE_TYPE_IO: if (res->Data.Io.Minimum == res->Data.Io.Maximum) { ACPI_DEBUG_PRINT((ACPI_DB_RESOURCES, "Io 0x%x/%d\n", res->Data.Io.Minimum, res->Data.Io.AddressLength)); if (ops->ioport) (*ops->ioport)(arg->dev, arg->context, res->Data.Io.Minimum, res->Data.Io.AddressLength); } else { ACPI_DEBUG_PRINT((ACPI_DB_RESOURCES, "Io 0x%x-0x%x/%d\n", res->Data.Io.Minimum, res->Data.Io.Maximum, res->Data.Io.AddressLength)); if (ops->iorange) (*ops->iorange)(arg->dev, arg->context, res->Data.Io.Minimum, res->Data.Io.Maximum, res->Data.Io.AddressLength, res->Data.Io.Alignment); } break; case ACPI_RESOURCE_TYPE_FIXED_MEMORY32: ACPI_DEBUG_PRINT((ACPI_DB_RESOURCES, "FixedMemory32 0x%x/%d\n", res->Data.FixedMemory32.Address, res->Data.FixedMemory32.AddressLength)); if (ops->memory) (*ops->memory)(arg->dev, arg->context, res->Data.FixedMemory32.Address, res->Data.FixedMemory32.AddressLength); break; case ACPI_RESOURCE_TYPE_MEMORY32: if (res->Data.Memory32.Minimum == res->Data.Memory32.Maximum) { ACPI_DEBUG_PRINT((ACPI_DB_RESOURCES, "Memory32 0x%x/%d\n", res->Data.Memory32.Minimum, res->Data.Memory32.AddressLength)); if (ops->memory) (*ops->memory)(arg->dev, arg->context, res->Data.Memory32.Minimum, res->Data.Memory32.AddressLength); } else { ACPI_DEBUG_PRINT((ACPI_DB_RESOURCES, "Memory32 0x%x-0x%x/%d\n", res->Data.Memory32.Minimum, res->Data.Memory32.Maximum, res->Data.Memory32.AddressLength)); if (ops->memrange) (*ops->memrange)(arg->dev, arg->context, res->Data.Memory32.Minimum, res->Data.Memory32.Maximum, res->Data.Memory32.AddressLength, res->Data.Memory32.Alignment); } break; case ACPI_RESOURCE_TYPE_MEMORY24: if (res->Data.Memory24.Minimum == res->Data.Memory24.Maximum) { ACPI_DEBUG_PRINT((ACPI_DB_RESOURCES, "Memory24 0x%x/%d\n", res->Data.Memory24.Minimum, res->Data.Memory24.AddressLength)); if (ops->memory) (*ops->memory)(arg->dev, arg->context, res->Data.Memory24.Minimum, res->Data.Memory24.AddressLength); } else { ACPI_DEBUG_PRINT((ACPI_DB_RESOURCES, "Memory24 0x%x-0x%x/%d\n", res->Data.Memory24.Minimum, res->Data.Memory24.Maximum, res->Data.Memory24.AddressLength)); if (ops->memrange) (*ops->memrange)(arg->dev, arg->context, res->Data.Memory24.Minimum, res->Data.Memory24.Maximum, res->Data.Memory24.AddressLength, res->Data.Memory24.Alignment); } break; case ACPI_RESOURCE_TYPE_IRQ: for (i = 0; i < res->Data.Irq.InterruptCount; i++) { ACPI_DEBUG_PRINT((ACPI_DB_RESOURCES, "IRQ %d\n", res->Data.Irq.Interrupts[i])); if (ops->irq) (*ops->irq)(arg->dev, arg->context, res->Data.Irq.Interrupts[i], res->Data.Irq.Triggering); } break; case ACPI_RESOURCE_TYPE_DMA: for (i = 0; i < res->Data.Dma.ChannelCount; i++) { ACPI_DEBUG_PRINT((ACPI_DB_RESOURCES, "DRQ %d\n", res->Data.Dma.Channels[i])); if (ops->drq) (*ops->drq)(arg->dev, arg->context, res->Data.Dma.Channels[i]); } break; case ACPI_RESOURCE_TYPE_START_DEPENDENT: ACPI_DEBUG_PRINT((ACPI_DB_RESOURCES, "Start dependant functions: %d\n", res->Data.StartDpf.CompatibilityPriority)); if (ops->start_dep) (*ops->start_dep)(arg->dev, arg->context, res->Data.StartDpf.CompatibilityPriority); break; case ACPI_RESOURCE_TYPE_END_DEPENDENT: ACPI_DEBUG_PRINT((ACPI_DB_RESOURCES, "End dependant functions\n")); if (ops->end_dep) (*ops->end_dep)(arg->dev, arg->context); break; case ACPI_RESOURCE_TYPE_ADDRESS32: /* XXX Only fixed size supported for now */ if (res->Data.Address32.AddressLength == 0 || res->Data.Address32.ProducerConsumer != ACPI_CONSUMER) break; #define ADRRESS32_FIXED2(r) \ ((r)->Data.Address32.MinAddressFixed == ACPI_ADDRESS_FIXED && \ (r)->Data.Address32.MaxAddressFixed == ACPI_ADDRESS_FIXED) switch (res->Data.Address32.ResourceType) { case ACPI_MEMORY_RANGE: if (ADRRESS32_FIXED2(res)) { if (ops->memory) (*ops->memory)(arg->dev, arg->context, res->Data.Address32.Minimum, res->Data.Address32.AddressLength); } else { if (ops->memrange) (*ops->memrange)(arg->dev, arg->context, res->Data.Address32.Minimum, res->Data.Address32.Maximum, res->Data.Address32.AddressLength, res->Data.Address32.Granularity); } break; case ACPI_IO_RANGE: if (ADRRESS32_FIXED2(res)) { if (ops->ioport) (*ops->ioport)(arg->dev, arg->context, res->Data.Address32.Minimum, res->Data.Address32.AddressLength); } else { if (ops->iorange) (*ops->iorange)(arg->dev, arg->context, res->Data.Address32.Minimum, res->Data.Address32.Maximum, res->Data.Address32.AddressLength, res->Data.Address32.Granularity); } break; case ACPI_BUS_NUMBER_RANGE: ACPI_DEBUG_PRINT((ACPI_DB_RESOURCES, "Address32/BusNumber unimplemented\n")); break; } #undef ADRRESS32_FIXED2 break; case ACPI_RESOURCE_TYPE_ADDRESS16: ACPI_DEBUG_PRINT((ACPI_DB_RESOURCES, "Address16 unimplemented\n")); break; case ACPI_RESOURCE_TYPE_EXTENDED_ADDRESS64: ACPI_DEBUG_PRINT((ACPI_DB_RESOURCES, "Extended address64 unimplemented\n")); break; case ACPI_RESOURCE_TYPE_EXTENDED_IRQ: ACPI_DEBUG_PRINT((ACPI_DB_RESOURCES, "ExtendedIrq unimplemented\n")); break; case ACPI_RESOURCE_TYPE_GENERIC_REGISTER: ACPI_DEBUG_PRINT((ACPI_DB_RESOURCES, "GenericRegister unimplemented\n")); break; case ACPI_RESOURCE_TYPE_VENDOR: ACPI_DEBUG_PRINT((ACPI_DB_RESOURCES, "VendorSpecific unimplemented\n")); break; default: ACPI_DEBUG_PRINT((ACPI_DB_RESOURCES, "Unknown resource type: %d\n", res->Type)); break; } return_ACPI_STATUS(AE_OK); } /* * acpi_resource_parse: * * Parse a device node's resources and fill them in for the * client. * * This API supports _CRS (current resources) and * _PRS (possible resources). * * Note that it might be nice to also locate ACPI-specific resource * items, such as GPE bits. */ ACPI_STATUS acpi_resource_parse(struct device *dev, ACPI_HANDLE handle, const char *path, void *arg, const struct acpi_resource_parse_ops *ops) { struct resource_parse_callback_arg cbarg; ACPI_STATUS rv; ACPI_FUNCTION_TRACE(__func__); if (ops->init) (*ops->init)(dev, arg, &cbarg.context); else cbarg.context = arg; cbarg.ops = ops; cbarg.dev = dev; rv = AcpiWalkResources(handle, path, acpi_resource_parse_callback, &cbarg); if (ACPI_FAILURE(rv)) { aprint_error_dev(dev, "ACPI: unable to get %s resources: %s\n", path, AcpiFormatException(rv)); return_ACPI_STATUS(rv); } if (ops->fini) (*ops->fini)(dev, cbarg.context); return_ACPI_STATUS(AE_OK); } /* * acpi_resource_print: * * Print the resources assigned to a device. */ void acpi_resource_print(struct device *dev, struct acpi_resources *res) { const char *sep; if (SIMPLEQ_EMPTY(&res->ar_io) && SIMPLEQ_EMPTY(&res->ar_iorange) && SIMPLEQ_EMPTY(&res->ar_mem) && SIMPLEQ_EMPTY(&res->ar_memrange) && SIMPLEQ_EMPTY(&res->ar_irq) && SIMPLEQ_EMPTY(&res->ar_drq)) return; aprint_normal("%s:", device_xname(dev)); if (SIMPLEQ_EMPTY(&res->ar_io) == 0) { struct acpi_io *ar; sep = ""; aprint_normal(" io "); SIMPLEQ_FOREACH(ar, &res->ar_io, ar_list) { aprint_normal("%s0x%x", sep, ar->ar_base); if (ar->ar_length > 1) aprint_normal("-0x%x", ar->ar_base + ar->ar_length - 1); sep = ","; } } /* XXX iorange */ if (SIMPLEQ_EMPTY(&res->ar_mem) == 0) { struct acpi_mem *ar; sep = ""; aprint_normal(" mem "); SIMPLEQ_FOREACH(ar, &res->ar_mem, ar_list) { aprint_normal("%s0x%x", sep, ar->ar_base); if (ar->ar_length > 1) aprint_normal("-0x%x", ar->ar_base + ar->ar_length - 1); sep = ","; } } /* XXX memrange */ if (SIMPLEQ_EMPTY(&res->ar_irq) == 0) { struct acpi_irq *ar; sep = ""; aprint_normal(" irq "); SIMPLEQ_FOREACH(ar, &res->ar_irq, ar_list) { aprint_normal("%s%d", sep, ar->ar_irq); sep = ","; } } if (SIMPLEQ_EMPTY(&res->ar_drq) == 0) { struct acpi_drq *ar; sep = ""; aprint_normal(" drq "); SIMPLEQ_FOREACH(ar, &res->ar_drq, ar_list) { aprint_normal("%s%d", sep, ar->ar_drq); sep = ","; } } aprint_normal("\n"); } /* * acpi_resource_cleanup: * * Free all allocated buffers */ void acpi_resource_cleanup(struct acpi_resources *res) { while (!SIMPLEQ_EMPTY(&res->ar_io)) { struct acpi_io *ar; ar = SIMPLEQ_FIRST(&res->ar_io); SIMPLEQ_REMOVE_HEAD(&res->ar_io, ar_list); AcpiOsFree(ar); } while (!SIMPLEQ_EMPTY(&res->ar_iorange)) { struct acpi_iorange *ar; ar = SIMPLEQ_FIRST(&res->ar_iorange); SIMPLEQ_REMOVE_HEAD(&res->ar_iorange, ar_list); AcpiOsFree(ar); } while (!SIMPLEQ_EMPTY(&res->ar_mem)) { struct acpi_mem *ar; ar = SIMPLEQ_FIRST(&res->ar_mem); SIMPLEQ_REMOVE_HEAD(&res->ar_mem, ar_list); AcpiOsFree(ar); } while (!SIMPLEQ_EMPTY(&res->ar_memrange)) { struct acpi_memrange *ar; ar = SIMPLEQ_FIRST(&res->ar_memrange); SIMPLEQ_REMOVE_HEAD(&res->ar_memrange, ar_list); AcpiOsFree(ar); } while (!SIMPLEQ_EMPTY(&res->ar_irq)) { struct acpi_irq *ar; ar = SIMPLEQ_FIRST(&res->ar_irq); SIMPLEQ_REMOVE_HEAD(&res->ar_irq, ar_list); AcpiOsFree(ar); } while (!SIMPLEQ_EMPTY(&res->ar_drq)) { struct acpi_drq *ar; ar = SIMPLEQ_FIRST(&res->ar_drq); SIMPLEQ_REMOVE_HEAD(&res->ar_drq, ar_list); AcpiOsFree(ar); } res->ar_nio = res->ar_niorange = res->ar_nmem = res->ar_nmemrange = res->ar_nirq = res->ar_ndrq = 0; } struct acpi_io * acpi_res_io(struct acpi_resources *res, int idx) { struct acpi_io *ar; SIMPLEQ_FOREACH(ar, &res->ar_io, ar_list) { if (ar->ar_index == idx) return ar; } return NULL; } struct acpi_iorange * acpi_res_iorange(struct acpi_resources *res, int idx) { struct acpi_iorange *ar; SIMPLEQ_FOREACH(ar, &res->ar_iorange, ar_list) { if (ar->ar_index == idx) return ar; } return NULL; } struct acpi_mem * acpi_res_mem(struct acpi_resources *res, int idx) { struct acpi_mem *ar; SIMPLEQ_FOREACH(ar, &res->ar_mem, ar_list) { if (ar->ar_index == idx) return ar; } return NULL; } struct acpi_memrange * acpi_res_memrange(struct acpi_resources *res, int idx) { struct acpi_memrange *ar; SIMPLEQ_FOREACH(ar, &res->ar_memrange, ar_list) { if (ar->ar_index == idx) return ar; } return NULL; } struct acpi_irq * acpi_res_irq(struct acpi_resources *res, int idx) { struct acpi_irq *ar; SIMPLEQ_FOREACH(ar, &res->ar_irq, ar_list) { if (ar->ar_index == idx) return ar; } return NULL; } struct acpi_drq * acpi_res_drq(struct acpi_resources *res, int idx) { struct acpi_drq *ar; SIMPLEQ_FOREACH(ar, &res->ar_drq, ar_list) { if (ar->ar_index == idx) return ar; } return NULL; } /***************************************************************************** * Default ACPI resource parse operations. *****************************************************************************/ static void acpi_res_parse_init(struct device *, void *, void **); static void acpi_res_parse_fini(struct device *, void *); static void acpi_res_parse_ioport(struct device *, void *, uint32_t, uint32_t); static void acpi_res_parse_iorange(struct device *, void *, uint32_t, uint32_t, uint32_t, uint32_t); static void acpi_res_parse_memory(struct device *, void *, uint32_t, uint32_t); static void acpi_res_parse_memrange(struct device *, void *, uint32_t, uint32_t, uint32_t, uint32_t); static void acpi_res_parse_irq(struct device *, void *, uint32_t, uint32_t); static void acpi_res_parse_drq(struct device *, void *, uint32_t); static void acpi_res_parse_start_dep(struct device *, void *, int); static void acpi_res_parse_end_dep(struct device *, void *); const struct acpi_resource_parse_ops acpi_resource_parse_ops_default = { .init = acpi_res_parse_init, .fini = acpi_res_parse_fini, .ioport = acpi_res_parse_ioport, .iorange = acpi_res_parse_iorange, .memory = acpi_res_parse_memory, .memrange = acpi_res_parse_memrange, .irq = acpi_res_parse_irq, .drq = acpi_res_parse_drq, .start_dep = acpi_res_parse_start_dep, .end_dep = acpi_res_parse_end_dep, }; static void acpi_res_parse_init(struct device *dev, void *arg, void **contextp) { struct acpi_resources *res = arg; SIMPLEQ_INIT(&res->ar_io); res->ar_nio = 0; SIMPLEQ_INIT(&res->ar_iorange); res->ar_niorange = 0; SIMPLEQ_INIT(&res->ar_mem); res->ar_nmem = 0; SIMPLEQ_INIT(&res->ar_memrange); res->ar_nmemrange = 0; SIMPLEQ_INIT(&res->ar_irq); res->ar_nirq = 0; SIMPLEQ_INIT(&res->ar_drq); res->ar_ndrq = 0; *contextp = res; } static void acpi_res_parse_fini(struct device *dev, void *context) { struct acpi_resources *res = context; /* Print the resources we're using. */ acpi_resource_print(dev, res); } static void acpi_res_parse_ioport(struct device *dev, void *context, uint32_t base, uint32_t length) { struct acpi_resources *res = context; struct acpi_io *ar; /* * Check if there is another I/O port directly below/under * this one. */ SIMPLEQ_FOREACH(ar, &res->ar_io, ar_list) { if (ar->ar_base == base + length ) { /* * Entry just below existing entry - adjust * the entry and return. */ ar->ar_base = base; ar->ar_length += length; return; } else if (ar->ar_base + ar->ar_length == base) { /* * Entry just above existing entry - adjust * the entry and return. */ ar->ar_length += length; return; } } ar = AcpiOsAllocate(sizeof(*ar)); if (ar == NULL) { aprint_error_dev(dev, "ACPI: unable to allocate I/O resource %d\n", res->ar_nio); res->ar_nio++; return; } ar->ar_index = res->ar_nio++; ar->ar_base = base; ar->ar_length = length; SIMPLEQ_INSERT_TAIL(&res->ar_io, ar, ar_list); } static void acpi_res_parse_iorange(struct device *dev, void *context, uint32_t low, uint32_t high, uint32_t length, uint32_t align) { struct acpi_resources *res = context; struct acpi_iorange *ar; ar = AcpiOsAllocate(sizeof(*ar)); if (ar == NULL) { aprint_error_dev(dev, "ACPI: unable to allocate I/O range resource %d\n", res->ar_niorange); res->ar_niorange++; return; } ar->ar_index = res->ar_niorange++; ar->ar_low = low; ar->ar_high = high; ar->ar_length = length; ar->ar_align = align; SIMPLEQ_INSERT_TAIL(&res->ar_iorange, ar, ar_list); } static void acpi_res_parse_memory(struct device *dev, void *context, uint32_t base, uint32_t length) { struct acpi_resources *res = context; struct acpi_mem *ar; ar = AcpiOsAllocate(sizeof(*ar)); if (ar == NULL) { aprint_error_dev(dev, "ACPI: unable to allocate Memory resource %d\n", res->ar_nmem); res->ar_nmem++; return; } ar->ar_index = res->ar_nmem++; ar->ar_base = base; ar->ar_length = length; SIMPLEQ_INSERT_TAIL(&res->ar_mem, ar, ar_list); } static void acpi_res_parse_memrange(struct device *dev, void *context, uint32_t low, uint32_t high, uint32_t length, uint32_t align) { struct acpi_resources *res = context; struct acpi_memrange *ar; ar = AcpiOsAllocate(sizeof(*ar)); if (ar == NULL) { aprint_error_dev(dev, "ACPI: unable to allocate Memory range resource %d\n", res->ar_nmemrange); res->ar_nmemrange++; return; } ar->ar_index = res->ar_nmemrange++; ar->ar_low = low; ar->ar_high = high; ar->ar_length = length; ar->ar_align = align; SIMPLEQ_INSERT_TAIL(&res->ar_memrange, ar, ar_list); } static void acpi_res_parse_irq(struct device *dev, void *context, uint32_t irq, uint32_t type) { struct acpi_resources *res = context; struct acpi_irq *ar; ar = AcpiOsAllocate(sizeof(*ar)); if (ar == NULL) { aprint_error_dev(dev, "ACPI: unable to allocate IRQ resource %d\n", res->ar_nirq); res->ar_nirq++; return; } ar->ar_index = res->ar_nirq++; ar->ar_irq = irq; ar->ar_type = type; SIMPLEQ_INSERT_TAIL(&res->ar_irq, ar, ar_list); } static void acpi_res_parse_drq(struct device *dev, void *context, uint32_t drq) { struct acpi_resources *res = context; struct acpi_drq *ar; ar = AcpiOsAllocate(sizeof(*ar)); if (ar == NULL) { aprint_error_dev(dev, "ACPI: unable to allocate DRQ resource %d\n", res->ar_ndrq); res->ar_ndrq++; return; } ar->ar_index = res->ar_ndrq++; ar->ar_drq = drq; SIMPLEQ_INSERT_TAIL(&res->ar_drq, ar, ar_list); } static void acpi_res_parse_start_dep(struct device *dev, void *context, int preference) { aprint_error_dev(dev, "ACPI: dependant functions not supported\n"); } static void acpi_res_parse_end_dep(struct device *dev, void *context) { /* Nothing to do. */ }