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/* $OpenBSD: acpidump.c,v 1.16 2015/10/12 04:02:57 semarie Exp $ */ |
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/* |
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* Copyright (c) 2000 Mitsuru IWASAKI <iwasaki@FreeBSD.org> |
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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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*/ |
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#include <sys/types.h> |
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#include <sys/mman.h> |
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#include <sys/queue.h> |
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#include <sys/stat.h> |
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#include <machine/biosvar.h> |
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#include <assert.h> |
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#include <err.h> |
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#include <fcntl.h> |
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#include <kvm.h> |
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#include <stdio.h> |
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#include <stdlib.h> |
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#include <string.h> |
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#include <unistd.h> |
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#include <limits.h> |
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#define vm_page_size sysconf(_SC_PAGESIZE) |
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#define PRINTFLAG(xx) \ |
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do { \ |
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if (facp->flags & ACPI_FACP_FLAG_## xx) { \ |
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fprintf(fhdr, "%c%s", sep, #xx); sep = ','; \ |
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} \ |
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} while (0) |
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typedef unsigned long vm_offset_t; |
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struct ACPIrsdp { |
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u_char signature[8]; |
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u_char sum; |
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u_char oem[6]; |
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u_char res; |
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u_int32_t addr; |
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} __packed; |
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struct ACPIsdt { |
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u_char signature[4]; |
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u_int32_t len; |
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u_char rev; |
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u_char check; |
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u_char oemid[6]; |
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u_char oemtblid[8]; |
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u_int32_t oemrev; |
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u_char creator[4]; |
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u_int32_t crerev; |
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#define SIZEOF_SDT_HDR 36 /* struct size except body */ |
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u_int32_t body[1];/* This member should be casted */ |
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} __packed; |
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struct ACPIgas { |
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u_int8_t address_space_id; |
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#define ACPI_GAS_MEMORY 0 |
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#define ACPI_GAS_IO 1 |
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#define ACPI_GAS_PCI 2 |
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#define ACPI_GAS_EMBEDDED 3 |
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#define ACPI_GAS_SMBUS 4 |
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#define ACPI_GAS_FIXED 0x7f |
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u_int8_t register_bit_width; |
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u_int8_t register_bit_offset; |
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u_int8_t res; |
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u_int64_t address; |
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} __packed; |
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struct FACPbody { |
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u_int32_t facs_ptr; |
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u_int32_t dsdt_ptr; |
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u_int8_t int_model; |
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#define ACPI_FACP_INTMODEL_PIC 0 /* Standard PC-AT PIC */ |
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#define ACPI_FACP_INTMODEL_APIC 1 /* Multiple APIC */ |
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u_char reserved1; |
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u_int16_t sci_int; |
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u_int32_t smi_cmd; |
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u_int8_t acpi_enable; |
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u_int8_t acpi_disable; |
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u_int8_t s4biosreq; |
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u_int8_t reserved2; |
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u_int32_t pm1a_evt_blk; |
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u_int32_t pm1b_evt_blk; |
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u_int32_t pm1a_cnt_blk; |
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u_int32_t pm1b_cnt_blk; |
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u_int32_t pm2_cnt_blk; |
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u_int32_t pm_tmr_blk; |
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u_int32_t gpe0_blk; |
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u_int32_t gpe1_blk; |
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u_int8_t pm1_evt_len; |
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u_int8_t pm1_cnt_len; |
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u_int8_t pm2_cnt_len; |
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u_int8_t pm_tmr_len; |
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u_int8_t gpe0_len; |
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u_int8_t gpe1_len; |
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u_int8_t gpe1_base; |
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u_int8_t reserved3; |
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u_int16_t p_lvl2_lat; |
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u_int16_t p_lvl3_lat; |
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u_int16_t flush_size; |
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u_int16_t flush_stride; |
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u_int8_t duty_off; |
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u_int8_t duty_width; |
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u_int8_t day_alrm; |
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u_int8_t mon_alrm; |
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u_int8_t century; |
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u_int16_t iapc_boot_arch; |
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u_char reserved4[1]; |
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u_int32_t flags; |
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#define ACPI_FACP_FLAG_WBINVD 1 /* WBINVD is correctly supported */ |
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#define ACPI_FACP_FLAG_WBINVD_FLUSH 2 /* WBINVD flushes caches */ |
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#define ACPI_FACP_FLAG_PROC_C1 4 /* C1 power state supported */ |
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#define ACPI_FACP_FLAG_P_LVL2_UP 8 /* C2 power state works on SMP */ |
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#define ACPI_FACP_FLAG_PWR_BUTTON 16 /* Power button uses control method */ |
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#define ACPI_FACP_FLAG_SLP_BUTTON 32 /* Sleep button uses control method */ |
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#define ACPI_FACP_FLAG_FIX_RTC 64 /* RTC wakeup not supported */ |
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#define ACPI_FACP_FLAG_RTC_S4 128 /* RTC can wakeup from S4 state */ |
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#define ACPI_FACP_FLAG_TMR_VAL_EXT 256 /* TMR_VAL is 32bit */ |
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#define ACPI_FACP_FLAG_DCK_CAP 512 /* Can support docking */ |
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struct ACPIgas reset_reg; |
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u_int8_t reset_value; |
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u_int8_t reserved5[3]; |
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u_int64_t x_firmware_ctrl; |
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u_int64_t x_dsdt; |
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struct ACPIgas x_pm1a_evt_blk; |
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struct ACPIgas x_pm1b_evt_blk; |
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struct ACPIgas x_pm1a_cnt_blk; |
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struct ACPIgas x_pm1b_cnt_blk; |
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struct ACPIgas x_pm2_cnt_blk; |
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struct ACPIgas x_pm_tmr_blk; |
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struct ACPIgas x_gpe0_blk; |
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struct ACPIgas x_gpe1_blk; |
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} __packed; |
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struct acpi_user_mapping { |
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LIST_ENTRY(acpi_user_mapping) link; |
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vm_offset_t pa; |
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caddr_t va; |
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size_t size; |
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}; |
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LIST_HEAD(acpi_user_mapping_list, acpi_user_mapping) maplist; |
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int acpi_mem_fd = -1; |
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char *aml_dumpfile; |
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FILE *fhdr; |
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int acpi_checksum(void *_p, size_t _length); |
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struct acpi_user_mapping *acpi_user_find_mapping(vm_offset_t _pa, size_t _size); |
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void *acpi_map_physical(vm_offset_t _pa, size_t _size); |
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void acpi_user_init(void); |
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struct ACPIrsdp *acpi_find_rsd_ptr(void); |
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void acpi_print_string(char *_s, size_t _length); |
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void acpi_print_rsd_ptr(struct ACPIrsdp *_rp); |
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struct ACPIsdt *acpi_map_sdt(vm_offset_t _pa); |
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void aml_dump(struct ACPIsdt *_hdr); |
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void acpi_print_sdt(struct ACPIsdt *_sdp); |
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void acpi_print_rsdt(struct ACPIsdt *_rsdp); |
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void acpi_print_facp(struct FACPbody *_facp); |
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void acpi_print_dsdt(struct ACPIsdt *_dsdp); |
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void acpi_handle_dsdt(struct ACPIsdt *_dsdp); |
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void acpi_handle_facp(struct FACPbody *_facp); |
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void acpi_handle_rsdt(struct ACPIsdt *_rsdp); |
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void asl_dump_from_devmem(void); |
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void usage(void); |
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u_long bios_acpi_addr(void); |
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struct ACPIsdt dsdt_header = { |
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"DSDT", 0, 1, 0, "OEMID", "OEMTBLID", 0x12345678, "CRTR", 0x12345678 |
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}; |
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int |
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acpi_checksum(void *p, size_t length) |
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{ |
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u_int8_t *bp; |
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u_int8_t sum; |
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bp = p; |
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sum = 0; |
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while (length--) |
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sum += *bp++; |
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return (sum); |
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} |
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struct acpi_user_mapping * |
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acpi_user_find_mapping(vm_offset_t pa, size_t size) |
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{ |
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struct acpi_user_mapping *map; |
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int page_mask = getpagesize() - 1; |
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/* First search for an existing mapping */ |
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for (map = LIST_FIRST(&maplist); map; map = LIST_NEXT(map, link)) { |
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if (map->pa <= pa && map->size >= pa + size - map->pa) |
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return (map); |
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} |
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/* Then create a new one */ |
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#undef round_page |
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#undef trunc_page |
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#define round_page(x) (((x) + page_mask) & ~page_mask) |
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#define trunc_page(x) ((x) & ~page_mask) |
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size = round_page(pa + size) - trunc_page(pa); |
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pa = trunc_page(pa); |
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#undef round_page |
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#undef trunc_page |
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map = malloc(sizeof(struct acpi_user_mapping)); |
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if (!map) |
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errx(1, "out of memory"); |
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map->pa = pa; |
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map->va = mmap(0, size, PROT_READ, MAP_SHARED, acpi_mem_fd, pa); |
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map->size = size; |
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if (map->va == MAP_FAILED) |
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err(1, "can't map address"); |
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LIST_INSERT_HEAD(&maplist, map, link); |
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return (map); |
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} |
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void * |
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acpi_map_physical(vm_offset_t pa, size_t size) |
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{ |
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struct acpi_user_mapping *map; |
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map = acpi_user_find_mapping(pa, size); |
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return (map->va + (pa - map->pa)); |
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} |
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void |
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acpi_user_init(void) |
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{ |
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if (acpi_mem_fd == -1) { |
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acpi_mem_fd = open("/dev/mem", O_RDONLY); |
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if (acpi_mem_fd == -1) |
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err(1, "opening /dev/mem"); |
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LIST_INIT(&maplist); |
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} |
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} |
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struct ACPIrsdp * |
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acpi_find_rsd_ptr(void) |
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{ |
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int i; |
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u_int8_t buf[sizeof(struct ACPIrsdp)]; |
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u_long addr; |
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if ((addr = bios_acpi_addr()) != 0) { |
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lseek(acpi_mem_fd, addr, SEEK_SET); |
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read(acpi_mem_fd, buf, 16); |
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if (!memcmp(buf, "RSD PTR ", 8)) { |
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read(acpi_mem_fd, buf + 16, |
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sizeof(struct ACPIrsdp) - 16); |
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if (!acpi_checksum(buf, sizeof(struct ACPIrsdp))) |
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return (acpi_map_physical(addr, |
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sizeof(struct ACPIrsdp))); |
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} |
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lseek(acpi_mem_fd, 0, SEEK_SET); |
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} |
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for (i = 0; i < 1024 * 1024; i += 16) { |
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lseek(acpi_mem_fd, i, SEEK_SET); |
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read(acpi_mem_fd, buf, 16); |
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if (!memcmp(buf, "RSD PTR ", 8)) { |
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/* Read the rest of the structure */ |
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read(acpi_mem_fd, buf + 16, |
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sizeof(struct ACPIrsdp) - 16); |
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/* Verify checksum before accepting it. */ |
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if (acpi_checksum(buf, sizeof(struct ACPIrsdp))) |
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continue; |
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return (acpi_map_physical(i, sizeof(struct ACPIrsdp))); |
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} |
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} |
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return (0); |
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} |
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void |
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acpi_print_string(char *s, size_t length) |
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{ |
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int c; |
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/* Trim trailing spaces and NULLs */ |
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while (length > 0 && (s[length - 1] == ' ' || s[length - 1] == '\0')) |
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length--; |
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while (length--) { |
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c = *s++; |
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fputc(c, fhdr); |
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} |
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} |
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void |
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acpi_print_rsd_ptr(struct ACPIrsdp *rp) |
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{ |
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fprintf(fhdr, "\n"); |
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fprintf(fhdr, "RSD PTR: Checksum=%d, OEMID=", rp->sum); |
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acpi_print_string(rp->oem, 6); |
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fprintf(fhdr, ", RsdtAddress=0x%08x\n", rp->addr); |
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fprintf(fhdr, "\n"); |
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} |
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struct ACPIsdt * |
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acpi_map_sdt(vm_offset_t pa) |
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{ |
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struct ACPIsdt *sp; |
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sp = acpi_map_physical(pa, sizeof(struct ACPIsdt)); |
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sp = acpi_map_physical(pa, sp->len); |
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return (sp); |
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} |
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void |
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aml_dump(struct ACPIsdt *hdr) |
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{ |
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static int hdr_index; |
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char name[PATH_MAX]; |
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int fd; |
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mode_t mode; |
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snprintf(name, sizeof(name), "%s.%c%c%c%c.%d", |
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aml_dumpfile, hdr->signature[0], hdr->signature[1], |
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hdr->signature[2], hdr->signature[3], |
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hdr_index++); |
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mode = (S_IRUSR | S_IWUSR | S_IRGRP | S_IROTH); |
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fd = open(name, O_WRONLY | O_CREAT | O_TRUNC, mode); |
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if (fd == -1) |
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err(1, "aml_dump"); |
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write(fd, hdr, SIZEOF_SDT_HDR); |
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write(fd, hdr->body, hdr->len - SIZEOF_SDT_HDR); |
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close(fd); |
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} |
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void |
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acpi_print_sdt(struct ACPIsdt *sdp) |
363 |
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{ |
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|
|
fprintf(fhdr, "\n"); |
365 |
|
|
acpi_print_string(sdp->signature, 4); |
366 |
|
|
fprintf(fhdr, ": Length=%d, Revision=%d, Checksum=%d,\n", |
367 |
|
|
sdp->len, sdp->rev, sdp->check); |
368 |
|
|
fprintf(fhdr, "\tOEMID="); |
369 |
|
|
acpi_print_string(sdp->oemid, 6); |
370 |
|
|
fprintf(fhdr, ", OEM Table ID="); |
371 |
|
|
acpi_print_string(sdp->oemtblid, 8); |
372 |
|
|
fprintf(fhdr, ", OEM Revision=0x%x,\n", sdp->oemrev); |
373 |
|
|
fprintf(fhdr, "\tCreator ID="); |
374 |
|
|
acpi_print_string(sdp->creator, 4); |
375 |
|
|
fprintf(fhdr, ", Creator Revision=0x%x\n", sdp->crerev); |
376 |
|
|
fprintf(fhdr, "\n"); |
377 |
|
|
if (!memcmp(sdp->signature, "DSDT", 4)) |
378 |
|
|
memcpy(&dsdt_header, sdp, sizeof(dsdt_header)); |
379 |
|
|
} |
380 |
|
|
|
381 |
|
|
void |
382 |
|
|
acpi_print_rsdt(struct ACPIsdt *rsdp) |
383 |
|
|
{ |
384 |
|
|
int i, entries; |
385 |
|
|
|
386 |
|
|
acpi_print_sdt(rsdp); |
387 |
|
|
entries = (rsdp->len - SIZEOF_SDT_HDR) / sizeof(u_int32_t); |
388 |
|
|
fprintf(fhdr, "\n"); |
389 |
|
|
fprintf(fhdr, "\tEntries={ "); |
390 |
|
|
for (i = 0; i < entries; i++) { |
391 |
|
|
if (i > 0) |
392 |
|
|
fprintf(fhdr, ", "); |
393 |
|
|
fprintf(fhdr, "0x%08x", rsdp->body[i]); |
394 |
|
|
} |
395 |
|
|
fprintf(fhdr, " }\n"); |
396 |
|
|
fprintf(fhdr, "\n"); |
397 |
|
|
} |
398 |
|
|
|
399 |
|
|
void |
400 |
|
|
acpi_print_facp(struct FACPbody *facp) |
401 |
|
|
{ |
402 |
|
|
char sep; |
403 |
|
|
|
404 |
|
|
fprintf(fhdr, "\n"); |
405 |
|
|
fprintf(fhdr, "\tDSDT=0x%x\n", facp->dsdt_ptr); |
406 |
|
|
fprintf(fhdr, "\tINT_MODEL=%s\n", facp->int_model ? "APIC" : "PIC"); |
407 |
|
|
fprintf(fhdr, "\tSCI_INT=%d\n", facp->sci_int); |
408 |
|
|
fprintf(fhdr, "\tSMI_CMD=0x%x, ", facp->smi_cmd); |
409 |
|
|
fprintf(fhdr, "ACPI_ENABLE=0x%x, ", facp->acpi_enable); |
410 |
|
|
fprintf(fhdr, "ACPI_DISABLE=0x%x, ", facp->acpi_disable); |
411 |
|
|
fprintf(fhdr, "S4BIOS_REQ=0x%x\n", facp->s4biosreq); |
412 |
|
|
if (facp->pm1a_evt_blk) |
413 |
|
|
fprintf(fhdr, "\tPM1a_EVT_BLK=0x%x-0x%x\n", |
414 |
|
|
facp->pm1a_evt_blk, |
415 |
|
|
facp->pm1a_evt_blk + facp->pm1_evt_len - 1); |
416 |
|
|
if (facp->pm1b_evt_blk) |
417 |
|
|
fprintf(fhdr, "\tPM1b_EVT_BLK=0x%x-0x%x\n", |
418 |
|
|
facp->pm1b_evt_blk, |
419 |
|
|
facp->pm1b_evt_blk + facp->pm1_evt_len - 1); |
420 |
|
|
if (facp->pm1a_cnt_blk) |
421 |
|
|
fprintf(fhdr, "\tPM1a_CNT_BLK=0x%x-0x%x\n", |
422 |
|
|
facp->pm1a_cnt_blk, |
423 |
|
|
facp->pm1a_cnt_blk + facp->pm1_cnt_len - 1); |
424 |
|
|
if (facp->pm1b_cnt_blk) |
425 |
|
|
fprintf(fhdr, "\tPM1b_CNT_BLK=0x%x-0x%x\n", |
426 |
|
|
facp->pm1b_cnt_blk, |
427 |
|
|
facp->pm1b_cnt_blk + facp->pm1_cnt_len - 1); |
428 |
|
|
if (facp->pm2_cnt_blk) |
429 |
|
|
fprintf(fhdr, "\tPM2_CNT_BLK=0x%x-0x%x\n", |
430 |
|
|
facp->pm2_cnt_blk, |
431 |
|
|
facp->pm2_cnt_blk + facp->pm2_cnt_len - 1); |
432 |
|
|
if (facp->pm_tmr_blk) |
433 |
|
|
fprintf(fhdr, "\tPM2_TMR_BLK=0x%x-0x%x\n", |
434 |
|
|
facp->pm_tmr_blk, |
435 |
|
|
facp->pm_tmr_blk + facp->pm_tmr_len - 1); |
436 |
|
|
if (facp->gpe0_blk) |
437 |
|
|
fprintf(fhdr, "\tPM2_GPE0_BLK=0x%x-0x%x\n", |
438 |
|
|
facp->gpe0_blk, |
439 |
|
|
facp->gpe0_blk + facp->gpe0_len - 1); |
440 |
|
|
if (facp->gpe1_blk) |
441 |
|
|
fprintf(fhdr, "\tPM2_GPE1_BLK=0x%x-0x%x, GPE1_BASE=%d\n", |
442 |
|
|
facp->gpe1_blk, |
443 |
|
|
facp->gpe1_blk + facp->gpe1_len - 1, |
444 |
|
|
facp->gpe1_base); |
445 |
|
|
fprintf(fhdr, "\tP_LVL2_LAT=%dms, P_LVL3_LAT=%dms\n", |
446 |
|
|
facp->p_lvl2_lat, facp->p_lvl3_lat); |
447 |
|
|
fprintf(fhdr, "\tFLUSH_SIZE=%d, FLUSH_STRIDE=%d\n", |
448 |
|
|
facp->flush_size, facp->flush_stride); |
449 |
|
|
fprintf(fhdr, "\tDUTY_OFFSET=%d, DUTY_WIDTH=%d\n", |
450 |
|
|
facp->duty_off, facp->duty_width); |
451 |
|
|
fprintf(fhdr, "\tDAY_ALRM=%d, MON_ALRM=%d, CENTURY=%d\n", |
452 |
|
|
facp->day_alrm, facp->mon_alrm, facp->century); |
453 |
|
|
fprintf(fhdr, "\tFlags="); |
454 |
|
|
sep = '{'; |
455 |
|
|
|
456 |
|
|
PRINTFLAG(WBINVD); |
457 |
|
|
PRINTFLAG(WBINVD_FLUSH); |
458 |
|
|
PRINTFLAG(PROC_C1); |
459 |
|
|
PRINTFLAG(P_LVL2_UP); |
460 |
|
|
PRINTFLAG(PWR_BUTTON); |
461 |
|
|
PRINTFLAG(SLP_BUTTON); |
462 |
|
|
PRINTFLAG(FIX_RTC); |
463 |
|
|
PRINTFLAG(RTC_S4); |
464 |
|
|
PRINTFLAG(TMR_VAL_EXT); |
465 |
|
|
PRINTFLAG(DCK_CAP); |
466 |
|
|
|
467 |
|
|
fprintf(fhdr, "}\n"); |
468 |
|
|
fprintf(fhdr, "\n"); |
469 |
|
|
} |
470 |
|
|
|
471 |
|
|
void |
472 |
|
|
acpi_print_dsdt(struct ACPIsdt *dsdp) |
473 |
|
|
{ |
474 |
|
|
acpi_print_sdt(dsdp); |
475 |
|
|
} |
476 |
|
|
|
477 |
|
|
void |
478 |
|
|
acpi_handle_dsdt(struct ACPIsdt *dsdp) |
479 |
|
|
{ |
480 |
|
|
u_int8_t *dp; |
481 |
|
|
u_int8_t *end; |
482 |
|
|
|
483 |
|
|
acpi_print_dsdt(dsdp); |
484 |
|
|
|
485 |
|
|
dp = (u_int8_t *)dsdp->body; |
486 |
|
|
end = (u_int8_t *)dsdp + dsdp->len; |
487 |
|
|
} |
488 |
|
|
|
489 |
|
|
void |
490 |
|
|
acpi_handle_facp(struct FACPbody *facp) |
491 |
|
|
{ |
492 |
|
|
struct ACPIsdt *dsdp; |
493 |
|
|
|
494 |
|
|
acpi_print_facp(facp); |
495 |
|
|
dsdp = (struct ACPIsdt *) acpi_map_sdt(facp->dsdt_ptr); |
496 |
|
|
if (acpi_checksum(dsdp, dsdp->len)) |
497 |
|
|
errx(1, "DSDT is corrupt"); |
498 |
|
|
acpi_handle_dsdt(dsdp); |
499 |
|
|
aml_dump(dsdp); |
500 |
|
|
} |
501 |
|
|
|
502 |
|
|
void |
503 |
|
|
acpi_handle_rsdt(struct ACPIsdt *rsdp) |
504 |
|
|
{ |
505 |
|
|
int i; |
506 |
|
|
int entries; |
507 |
|
|
struct ACPIsdt *sdp; |
508 |
|
|
|
509 |
|
|
aml_dump(rsdp); |
510 |
|
|
entries = (rsdp->len - SIZEOF_SDT_HDR) / sizeof(u_int32_t); |
511 |
|
|
acpi_print_rsdt(rsdp); |
512 |
|
|
for (i = 0; i < entries; i++) { |
513 |
|
|
sdp = (struct ACPIsdt *) acpi_map_sdt(rsdp->body[i]); |
514 |
|
|
if (acpi_checksum(sdp, sdp->len)) |
515 |
|
|
errx(1, "RSDT entry %d is corrupt", i); |
516 |
|
|
aml_dump(sdp); |
517 |
|
|
if (!memcmp(sdp->signature, "FACP", 4)) { |
518 |
|
|
acpi_handle_facp((struct FACPbody *) sdp->body); |
519 |
|
|
} else { |
520 |
|
|
acpi_print_sdt(sdp); |
521 |
|
|
} |
522 |
|
|
} |
523 |
|
|
} |
524 |
|
|
|
525 |
|
|
void |
526 |
|
|
asl_dump_from_devmem(void) |
527 |
|
|
{ |
528 |
|
|
struct ACPIrsdp *rp; |
529 |
|
|
struct ACPIsdt *rsdp; |
530 |
|
|
char name[PATH_MAX]; |
531 |
|
|
|
532 |
|
|
snprintf(name, sizeof(name), "%s.headers", aml_dumpfile); |
533 |
|
|
|
534 |
|
|
acpi_user_init(); |
535 |
|
|
|
536 |
|
|
if (pledge("stdio rpath wpath cpath", NULL) == -1) |
537 |
|
|
err(1, "pledge"); |
538 |
|
|
|
539 |
|
|
rp = acpi_find_rsd_ptr(); |
540 |
|
|
if (!rp) |
541 |
|
|
errx(1, "Can't find ACPI information"); |
542 |
|
|
|
543 |
|
|
fhdr = fopen(name, "w"); |
544 |
|
|
if (fhdr == NULL) |
545 |
|
|
err(1, "asl_dump_from_devmem"); |
546 |
|
|
|
547 |
|
|
acpi_print_rsd_ptr(rp); |
548 |
|
|
rsdp = (struct ACPIsdt *) acpi_map_sdt(rp->addr); |
549 |
|
|
if (memcmp(rsdp->signature, "RSDT", 4) || |
550 |
|
|
acpi_checksum(rsdp, rsdp->len)) |
551 |
|
|
errx(1, "RSDT is corrupted"); |
552 |
|
|
|
553 |
|
|
acpi_handle_rsdt(rsdp); |
554 |
|
|
|
555 |
|
|
fclose(fhdr); |
556 |
|
|
} |
557 |
|
|
|
558 |
|
|
void |
559 |
|
|
usage(void) |
560 |
|
|
{ |
561 |
|
|
extern char *__progname; |
562 |
|
|
|
563 |
|
|
fprintf(stderr, "usage: %s -o prefix_for_output\n", __progname); |
564 |
|
|
exit(1); |
565 |
|
|
} |
566 |
|
|
|
567 |
|
|
int |
568 |
|
|
main(int argc, char *argv[]) |
569 |
|
|
{ |
570 |
|
|
char c; |
571 |
|
|
|
572 |
|
|
while ((c = getopt(argc, argv, "o:")) != -1) { |
573 |
|
|
switch (c) { |
574 |
|
|
case 'o': |
575 |
|
|
aml_dumpfile = optarg; |
576 |
|
|
break; |
577 |
|
|
default: |
578 |
|
|
usage(); |
579 |
|
|
break; |
580 |
|
|
} |
581 |
|
|
} |
582 |
|
|
|
583 |
|
|
if (aml_dumpfile == NULL) |
584 |
|
|
usage(); |
585 |
|
|
|
586 |
|
|
asl_dump_from_devmem(); |
587 |
|
|
|
588 |
|
|
return (0); |
589 |
|
|
} |
590 |
|
|
|
591 |
|
|
u_long |
592 |
|
|
bios_acpi_addr(void) |
593 |
|
|
{ |
594 |
|
|
kvm_t *kd; |
595 |
|
|
struct nlist nl[2]; |
596 |
|
|
bios_efiinfo_t efiinfo; |
597 |
|
|
u_long ptr; |
598 |
|
|
|
599 |
|
|
memset(&nl, 0, sizeof(nl)); |
600 |
|
|
kd = kvm_openfiles(NULL, NULL, NULL, O_RDONLY, NULL); |
601 |
|
|
if (kd == NULL) |
602 |
|
|
goto on_error; |
603 |
|
|
nl[0].n_name = "_bios_efiinfo"; |
604 |
|
|
if (kvm_nlist(kd, nl) == -1) |
605 |
|
|
goto on_error; |
606 |
|
|
if (kvm_read(kd, nl[0].n_value, &ptr, sizeof(ptr)) == -1) |
607 |
|
|
goto on_error; |
608 |
|
|
if (kvm_read(kd, ptr, &efiinfo, sizeof(efiinfo)) == -1) |
609 |
|
|
goto on_error; |
610 |
|
|
|
611 |
|
|
kvm_close(kd); |
612 |
|
|
return (efiinfo.config_acpi); |
613 |
|
|
|
614 |
|
|
on_error: |
615 |
|
|
if (kd != NULL) |
616 |
|
|
kvm_close(kd); |
617 |
|
|
return (0); |
618 |
|
|
} |