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-rw-r--r--tools/power/acpi/Makefile7
-rw-r--r--tools/power/acpi/acpidump.c127
2 files changed, 103 insertions, 31 deletions
diff --git a/tools/power/acpi/Makefile b/tools/power/acpi/Makefile
index faf5ff5c8f8f..dad79a69b679 100644
--- a/tools/power/acpi/Makefile
+++ b/tools/power/acpi/Makefile
@@ -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)
diff --git a/tools/power/acpi/acpidump.c b/tools/power/acpi/acpidump.c
index 3bb8e820ba43..8e5e19451ce1 100644
--- a/tools/power/acpi/acpidump.c
+++ b/tools/power/acpi/acpidump.c
@@ -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
@@ -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];
@@ -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);
@@ -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) {
@@ -272,30 +312,26 @@ no_facs:
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;
@@ -303,28 +339,63 @@ static int acpi_dump_SDT(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 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;
@@ -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);
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-28 05:57:37 +0100