diff options
| -rw-r--r-- | tools/power/acpi/acpidump.c | 187 |
1 files changed, 89 insertions, 98 deletions
diff --git a/tools/power/acpi/acpidump.c b/tools/power/acpi/acpidump.c index a63dee9..0777987 100644 --- a/tools/power/acpi/acpidump.c +++ b/tools/power/acpi/acpidump.c @@ -1,6 +1,5 @@ /* * (c) Alexey Starikovskiy, Intel, 2005-2006. - * (c) Len Brown, Intel, 2007. * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -63,6 +62,8 @@ typedef long long s64; #include <unistd.h> #include <getopt.h> +#include <sys/types.h> +#include <dirent.h> #include <acpi/acconfig.h> #include <acpi/platform/acenv.h> @@ -186,40 +187,6 @@ static void acpi_show_data(int fd, u8 * data, int size) /* * Output ACPI table */ - -#define MAX_TABLES 128 -int next_table_dump; -u64 dumped_tables[MAX_TABLES]; - -void -set_table_dumped(u64 address) { - if (next_table_dump >= MAX_TABLES) { - printf("increase MAX_TABLES\n"); - exit(1); - } - dumped_tables[next_table_dump++] = address; -} - -/* - * list the tables as they are dumped - * check the list so that they are not dumped twice. - * - * this is needed because we follow both the XSDT and RSDT - * which generally point to all duplicate tables - * except the FADT - */ -int -check_table_dumped(u64 address) { - int i; - - for (i = 0; i < MAX_TABLES; ++i) { - if (address == dumped_tables[i]) - return 1; - if (dumped_tables[i] == 0) - return 0; - } - return 0; -} static void acpi_show_table(int fd, struct acpi_table_header *table, unsigned long addr) { char buff[80]; @@ -233,10 +200,6 @@ static void acpi_show_table(int fd, struct acpi_table_header *table, unsigned lo static void write_table(int fd, struct acpi_table_header *tbl, unsigned long addr) { static int select_done = 0; - - if (check_table_dumped((u64)addr)) - return; - if (!select_sig[0]) { if (print) { acpi_show_table(fd, tbl, addr); @@ -255,7 +218,6 @@ static void write_table(int fd, struct acpi_table_header *tbl, unsigned long add } select_done = 1; } - set_table_dumped((u64) addr); } static void acpi_dump_FADT(int fd, struct acpi_table_header *tbl, unsigned long xaddr) { @@ -312,26 +274,30 @@ no_facs: write_table(fd, (struct acpi_table_header *)&x, xaddr); } - -static int acpi_dump_RSDT(int fd, struct acpi_rsdp_descriptor *rsdp) +static int acpi_dump_SDT(int fd, struct acpi_rsdp_descriptor *rsdp) { struct acpi_table_header *sdt, *tbl = 0; - int i, num; + int xsdt = 1, i, num; char *offset; unsigned long addr; - - tbl = acpi_map_table(rsdp->rsdt_physical_address, "RSDT"); + if (rsdp->revision > 1 && rsdp->xsdt_physical_address) { + tbl = acpi_map_table(rsdp->xsdt_physical_address, "XSDT"); + } + if (!tbl && rsdp->rsdt_physical_address) { + xsdt = 0; + tbl = acpi_map_table(rsdp->rsdt_physical_address, "RSDT"); + } if (!tbl) return 0; - sdt = malloc(tbl->length); memcpy(sdt, tbl, tbl->length); acpi_unmap_table(tbl); if (checksum((u8 *)sdt, sdt->length)) - fprintf(stderr, "Wrong checksum for %s!\n", "RSDT"); - num = (sdt->length - sizeof(struct acpi_table_header))/sizeof(u32); + fprintf(stderr, "Wrong checksum for %s!\n", (xsdt)?"XSDT":"RSDT"); + num = (sdt->length - sizeof(struct acpi_table_header))/((xsdt)?sizeof(u64):sizeof(u32)); offset = (char *)sdt + sizeof(struct acpi_table_header); - for (i = 0; i < num; ++i, offset += sizeof(u32)) { - addr = (unsigned long)(*(u32 *)offset); + for (i = 0; i < num; ++i, offset += ((xsdt) ? sizeof(u64) : sizeof(u32))) { + addr = (xsdt) ? (unsigned long)(*(u64 *)offset): + (unsigned long)(*(u32 *)offset); if (!addr) continue; tbl = acpi_map_table(addr, 0); if (!tbl) continue; @@ -339,66 +305,92 @@ static int acpi_dump_RSDT(int fd, struct acpi_rsdp_descriptor *rsdp) acpi_dump_FADT(fd, tbl, addr); } else { if (checksum((u8 *)tbl, tbl->length)) - fprintf(stderr, "Wrong checksum for %.4s!\n", tbl->signature); + fprintf(stderr, "Wrong checksum for generic table!\n"); write_table(fd, tbl, addr); } acpi_unmap_table(tbl); if (connect) { - (*(u32*)offset) = lseek(fd, 0, SEEK_CUR); + if (xsdt) + (*(u64*)offset) = lseek(fd, 0, SEEK_CUR); + else + (*(u32*)offset) = lseek(fd, 0, SEEK_CUR); } } - addr = (unsigned long)rsdp->rsdt_physical_address; - if (connect) { - rsdp->rsdt_physical_address = lseek(fd, 0, SEEK_CUR); + if (xsdt) { + addr = (unsigned long)rsdp->xsdt_physical_address; + if (connect) { + rsdp->xsdt_physical_address = lseek(fd, 0, SEEK_CUR); + } + } else { + addr = (unsigned long)rsdp->rsdt_physical_address; + if (connect) { + rsdp->rsdt_physical_address = lseek(fd, 0, SEEK_CUR); + } } write_table(fd, sdt, addr); free (sdt); return 1; } +#define DYNAMIC_SSDT "/sys/firmware/acpi/tables/dynamic" -static int acpi_dump_XSDT(int fd, struct acpi_rsdp_descriptor *rsdp) +static void acpi_dump_dynamic_SSDT(int fd) { - struct acpi_table_header *sdt, *tbl = 0; - int i, num; - char *offset; - unsigned long addr; - if (rsdp->revision > 1 && rsdp->xsdt_physical_address) { - tbl = acpi_map_table(rsdp->xsdt_physical_address, "XSDT"); + struct stat file_stat; + char filename[256], *ptr; + DIR *tabledir; + struct dirent *entry; + FILE *fp; + int count, readcount, length; + struct acpi_table_header table_header, *ptable; + + if (stat(DYNAMIC_SSDT, &file_stat) == -1) { + /* The directory doesn't exist */ + return; } - if (!tbl) return 0; - - sdt = malloc(tbl->length); - memcpy(sdt, tbl, tbl->length); - acpi_unmap_table(tbl); - if (checksum((u8 *)sdt, sdt->length)) - fprintf(stderr, "Wrong checksum for %s!\n", "XSDT"); - num = (sdt->length - sizeof(struct acpi_table_header))/sizeof(u64); - offset = (char *)sdt + sizeof(struct acpi_table_header); - for (i = 0; i < num; ++i, offset += sizeof(u64)) { - addr = (unsigned long)(*(u64 *)offset); - if (!addr) continue; - tbl = acpi_map_table(addr, 0); - if (!tbl) continue; - if (!memcmp(tbl->signature, FADT_SIG, 4)) { - acpi_dump_FADT(fd, tbl, addr); - } else { - if (checksum((u8 *)tbl, tbl->length)) - fprintf(stderr, "Wrong checksum for %.4s\n", tbl->signature); - write_table(fd, tbl, addr); + tabledir = opendir(DYNAMIC_SSDT); + if(!tabledir){ + /*can't open the directory */ + return; + } + + while ((entry = readdir(tabledir)) != 0){ + /* skip the file of . /.. */ + if (entry->d_name[0] == '.') + continue; + + sprintf(filename, "%s/%s", DYNAMIC_SSDT, entry->d_name); + fp = fopen(filename, "r"); + if (fp == NULL) { + fprintf(stderr, "Can't open the file of %s\n", + filename); + continue; } - acpi_unmap_table(tbl); - if (connect) { - (*(u64*)offset) = lseek(fd, 0, SEEK_CUR); + /* Read the Table header to parse the table length */ + count = fread(&table_header, 1, sizeof(struct acpi_table_header), fp); + if (count < sizeof(table_header)) { + /* the length is lessn than ACPI table header. skip it */ + fclose(fp); + continue; } + length = table_header.length; + ptr = malloc(table_header.length); + fseek(fp, 0, SEEK_SET); + readcount = 0; + while(!feof(fp) && readcount < length) { + count = fread(ptr + readcount, 1, 256, fp); + readcount += count; + } + fclose(fp); + ptable = (struct acpi_table_header *) ptr; + if (checksum((u8 *) ptable, ptable->length)) + fprintf(stderr, "Wrong checksum " + "for dynamic SSDT table!\n"); + write_table(fd, ptable, 0); + free(ptr); } - addr = (unsigned long)rsdp->xsdt_physical_address; - if (connect) { - rsdp->xsdt_physical_address = lseek(fd, 0, SEEK_CUR); - } - write_table(fd, sdt, addr); - free (sdt); - return 1; + closedir(tabledir); + return; } static void usage(const char *progname) @@ -518,6 +510,7 @@ int main(int argc, char **argv) goto not_found; write(fd, raw, length); acpi_unmap_memory(raw, length); + close(fd); return 0; } @@ -540,12 +533,7 @@ int main(int argc, char **argv) if (connect) { lseek(fd, sizeof(struct acpi_rsdp_descriptor), SEEK_SET); } - if (rsdpx.revision > 1 && rsdpx.xsdt_physical_address) { - /* ACPIDUMP uses xsdt table */ - if (!acpi_dump_XSDT(fd, &rsdpx)) - goto not_found; - } - if (!acpi_dump_RSDT(fd, &rsdpx)) + if (!acpi_dump_SDT(fd, &rsdpx)) goto not_found; if (connect) { lseek(fd, 0, SEEK_SET); @@ -560,8 +548,11 @@ int main(int argc, char **argv) buff[0] = '\n'; write(fd, buff, 1); } + acpi_dump_dynamic_SSDT(fd); + close(fd); return 0; not_found: + close(fd); fprintf(stderr, "ACPI tables were not found. If you know location " "of RSD PTR table (from dmesg, etc), " "supply it with either --addr or -a option\n"); |