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tools/power/acpi/acpidump: version 20070714
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This is unchanged version 20070714, plus a small bit in
DEFINE_ALTERNATE_TYPES to enable building with latest kernel headers.

Signed-off-by: Len Brown <[email protected]>
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@lenb
lenb committed Sep 23, 2012
1 parent 4f10042 commit 981efe9
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Showing 2 changed files with 103 additions and 31 deletions.
7 changes: 3 additions & 4 deletions tools/power/acpi/Makefile
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Original file line number Diff line number Diff line change
@@ -1,11 +1,10 @@
PROG= acpidump
PROG= acpidump
SRCS= acpidump.c
KERNEL_INCLUDE := ../../../include
CFLAGS += -Wall -Wstrict-prototypes -Os -s -D_LINUX -DDEFINE_ALTERNATE_TYPES -I$(KERNEL_INCLUDE)
CFLAGS += -Wall -Wstrict-prototypes -Wdeclaration-after-statement -Os -s -D_LINUX -DDEFINE_ALTERNATE_TYPES -I$(KERNEL_INCLUDE)

all: acpidump

acpidump : $(SRCS)
$(PROG) : $(SRCS)
$(CC) $(CFLAGS) $(SRCS) -o $(PROG)

CLEANFILES= $(PROG)
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127 changes: 100 additions & 27 deletions tools/power/acpi/acpidump.c
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Original file line number Diff line number Diff line change
@@ -1,5 +1,6 @@
/*
* (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
Expand Down Expand Up @@ -185,6 +186,40 @@ 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];
Expand All @@ -198,6 +233,10 @@ 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);
Expand All @@ -216,6 +255,7 @@ 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) {
Expand Down Expand Up @@ -272,59 +312,90 @@ static void acpi_dump_FADT(int fd, struct acpi_table_header *tbl, unsigned long
write_table(fd, (struct acpi_table_header *)&x, xaddr);
}

static int acpi_dump_SDT(int fd, struct acpi_rsdp_descriptor *rsdp)

static int acpi_dump_RSDT(int fd, struct acpi_rsdp_descriptor *rsdp)
{
struct acpi_table_header *sdt, *tbl = 0;
int xsdt = 1, i, num;
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 && rsdp->rsdt_physical_address) {
xsdt = 0;
tbl = acpi_map_table(rsdp->rsdt_physical_address, "RSDT");
}

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", (xsdt)?"XSDT":"RSDT");
num = (sdt->length - sizeof(struct acpi_table_header))/((xsdt)?sizeof(u64):sizeof(u32));
fprintf(stderr, "Wrong checksum for %s!\n", "RSDT");
num = (sdt->length - sizeof(struct acpi_table_header))/sizeof(u32);
offset = (char *)sdt + sizeof(struct acpi_table_header);
for (i = 0; i < num; ++i, offset += ((xsdt) ? sizeof(u64) : sizeof(u32))) {
addr = (xsdt) ? (unsigned long)(*(u64 *)offset):
(unsigned long)(*(u32 *)offset);
for (i = 0; i < num; ++i, offset += sizeof(u32)) {
addr = (unsigned long)(*(u32 *)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 generic table!\n");
fprintf(stderr, "Wrong checksum for %.4s!\n", tbl->signature);
write_table(fd, tbl, addr);
}
acpi_unmap_table(tbl);
if (connect) {
if (xsdt)
(*(u64*)offset) = lseek(fd, 0, SEEK_CUR);
else
(*(u32*)offset) = lseek(fd, 0, SEEK_CUR);
(*(u32*)offset) = 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);
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;
}


static int acpi_dump_XSDT(int fd, struct acpi_rsdp_descriptor *rsdp)
{
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;

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);
}
} else {
addr = (unsigned long)rsdp->rsdt_physical_address;
acpi_unmap_table(tbl);
if (connect) {
rsdp->rsdt_physical_address = lseek(fd, 0, SEEK_CUR);
(*(u64*)offset) = lseek(fd, 0, SEEK_CUR);
}
}
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;
Expand Down Expand Up @@ -469,7 +540,9 @@ int main(int argc, char **argv)
if (connect) {
lseek(fd, sizeof(struct acpi_rsdp_descriptor), SEEK_SET);
}
if (!acpi_dump_SDT(fd, &rsdpx))
if (!acpi_dump_XSDT(fd, &rsdpx))
goto not_found;
if (!acpi_dump_RSDT(fd, &rsdpx))
goto not_found;
if (connect) {
lseek(fd, 0, SEEK_SET);
Expand Down

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