tools/power/acpi/acpidump: version 20101221 - find dynamic tables in sysfs
This is unchanged version 20101221, plus a small bit in DEFINE_ALTERNATE_TYPES to enable building with latest kernel headers. This version finds dynamic tables exported by Linux in /sys/firmware/acpi/tables/dynamic Signed-off-by: Len Brown <len.brown@intel.com>
This commit is contained in:
Len Brown
parent
39a55ff2c3
commit
d4bb1c90c8
|
|
@ -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");
|
||||
}
|
||||
if (!tbl) return 0;
|
||||
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;
|
||||
|
||||
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);
|
||||
}
|
||||
acpi_unmap_table(tbl);
|
||||
if (connect) {
|
||||
(*(u64*)offset) = lseek(fd, 0, SEEK_CUR);
|
||||
}
|
||||
if (stat(DYNAMIC_SSDT, &file_stat) == -1) {
|
||||
/* The directory doesn't exist */
|
||||
return;
|
||||
}
|
||||
addr = (unsigned long)rsdp->xsdt_physical_address;
|
||||
if (connect) {
|
||||
rsdp->xsdt_physical_address = lseek(fd, 0, SEEK_CUR);
|
||||
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;
|
||||
}
|
||||
/* 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);
|
||||
}
|
||||
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");
|
||||
|
|
|
|||
Reference in New Issue