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Commit 4f100420 authored by Len Brown's avatar Len Brown
Browse files

tools/power/acpi/acpidump: version 20060606 



This is unchanged version 20060606, plus a small bit in
DEFINE_ALTERNATE_TYPES to enable building with latest kernel headers.

Signed-off-by: default avatarLen Brown <len.brown@intel.com>
parent 0efea7b6

tools/power/acpi/acpidump.c

+59 −38
Original line number Diff line number Diff line 
/*

 * (c) Alexey Starikovskiy, Intel, 2005.

 * (c) Alexey Starikovskiy, Intel, 2005-2006.

 * All rights reserved.

 *

 * Redistribution and use in source and binary forms, with or without
@@ -77,16 +77,16 @@ static inline u8 checksum(u8 * buffer, u32 length) 
}



static unsigned long psz, addr, length;

static int print, connect;

static int print, connect, skip;

static u8 select_sig[4];



static unsigned long read_efi_systab( void )

{

	char buffer[80];

	unsigned long addr;

	FILE *f = fopen("/sys/firmware/efi/systab", "r");

	if (f) {

		char buffer[80];

		while (fgets(buffer, 80, f)) {

			unsigned long addr;

			if (sscanf(buffer, "ACPI20=0x%lx", &addr) == 1)

				return addr;

		}
@@ -97,13 +97,15 @@ static unsigned long read_efi_systab( void ) 


static u8 *acpi_map_memory(unsigned long where, unsigned length)

{

	unsigned long offset;

	u8 *there;

	int fd = open("/dev/mem", O_RDONLY);

	if (fd < 0) {

		fprintf(stderr, "acpi_os_map_memory: cannot open /dev/mem\n");

		exit(1);

	}

	unsigned long offset = where % psz;

	u8 *there = mmap(NULL, length + offset, PROT_READ, MAP_PRIVATE,

	offset = where % psz;

	there = mmap(NULL, length + offset, PROT_READ, MAP_PRIVATE,

			 fd, where - offset);

	close(fd);

	if (there == MAP_FAILED) return 0;
@@ -118,10 +120,11 @@ static void acpi_unmap_memory(u8 * there, unsigned length) 


static struct acpi_table_header *acpi_map_table(unsigned long where, char *sig)

{

	unsigned size;

	struct acpi_table_header *tbl = (struct acpi_table_header *)

	    acpi_map_memory(where, sizeof(struct acpi_table_header));

	if (!tbl || (sig && memcmp(sig, tbl->signature, 4))) return 0;

	unsigned size = tbl->length;

	size = tbl->length;

	acpi_unmap_memory((u8 *) tbl, sizeof(struct acpi_table_header));

	return (struct acpi_table_header *)acpi_map_memory(where, size);

}
@@ -133,12 +136,13 @@ static void acpi_unmap_table(struct acpi_table_header *tbl) 


static struct acpi_rsdp_descriptor *acpi_scan_for_rsdp(u8 *begin, u32 length)

{

	struct acpi_rsdp_descriptor *rsdp;

	u8 *i, *end = begin + length;

	/* Search from given start address for the requested length */

	for (i = begin; i < end; i += ACPI_RSDP_SCAN_STEP) {

		/* The signature and checksum must both be correct */

		if (memcmp((char *)i, "RSD PTR ", 8)) continue;

		struct acpi_rsdp_descriptor *rsdp = (struct acpi_rsdp_descriptor *)i;

		rsdp = (struct acpi_rsdp_descriptor *)i;

		/* Signature matches, check the appropriate checksum */

		if (!checksum((u8 *) rsdp, (rsdp->revision < 2) ?

			      ACPI_RSDP_CHECKSUM_LENGTH :
@@ -156,9 +160,10 @@ static struct acpi_rsdp_descriptor *acpi_scan_for_rsdp(u8 *begin, u32 length) 
static void acpi_show_data(int fd, u8 * data, int size)

{

	char buffer[256];

	int len;

	int i, remain = size;

	while (remain > 0) {

		int len = snprintf(buffer, 256, "  %04x:", size - remain);

		len = snprintf(buffer, 256, "  %04x:", size - remain);

		for (i = 0; i < 16 && i < remain; i++) {

			len +=

			    snprintf(&buffer[len], 256 - len, " %02x", data[i]);
@@ -200,6 +205,10 @@ static void write_table(int fd, struct acpi_table_header *tbl, unsigned long add 
			write(fd, tbl, tbl->length);

		}

	} else if (!select_done && !memcmp(select_sig, tbl->signature, 4)) {

		if (skip > 0) {

			--skip;

			return;

		}

		if (print) {

			acpi_show_table(fd, tbl, addr);

		} else {
@@ -265,8 +274,10 @@ static void acpi_dump_FADT(int fd, struct acpi_table_header *tbl, unsigned long 


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

{

	struct acpi_table_header *tbl = 0;

	int xsdt = 1;

	struct acpi_table_header *sdt, *tbl = 0;

	int xsdt = 1, i, num;

	char *offset;

	unsigned long addr;

	if (rsdp->revision > 1 && rsdp->xsdt_physical_address) {

		tbl = acpi_map_table(rsdp->xsdt_physical_address, "XSDT");

	}
@@ -275,17 +286,17 @@ static int acpi_dump_SDT(int fd, struct acpi_rsdp_descriptor *rsdp) 
		tbl = acpi_map_table(rsdp->rsdt_physical_address, "RSDT");

	}

	if (!tbl) return 0;

	struct acpi_table_header *sdt = malloc(tbl->length);

	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");

	int i, num = (sdt->length - sizeof(struct acpi_table_header))/((xsdt)?sizeof(u64):sizeof(u32));

	char *offset = (char *)sdt + sizeof(struct acpi_table_header);

	unsigned long addr;

	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 += ((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;

		if (!memcmp(tbl->signature, FADT_SIG, 4)) {
@@ -330,29 +341,36 @@ static void usage(const char *progname) 
	puts("\t--binary or -b -- dump data in binary form rather than in hex-dump format");

	puts("\t--length 0x456 or -l 0x456 -- works only with --addr, dump physical memory"

		"\n\t\tregion without trying to understand it's contents");

	puts("\t--skip 2 or -s 2 -- skip 2 tables of the given name and output only 3rd one");

	puts("\t--help or -h -- this help message");

	exit(0);

}



int main(int argc, char **argv)

{

	memset(select_sig, 0, 4);

	print = 1;

	connect = 0;

	char *filename = 0;

	addr = length = 0;

	while (1) {

		int option_index = 0;

static struct option long_options[] = {

	{"addr", 1, 0, 0},

	{"table", 1, 0, 0},

	{"output", 1, 0, 0},

	{"binary", 0, 0, 0},

	{"length", 1, 0, 0},

	{"skip", 1, 0, 0},

	{"help", 0, 0, 0},

	{0, 0, 0, 0}

};

		int c = getopt_long(argc, argv, "a:t:o:bl:h",

int main(int argc, char **argv)

{

	int option_index, c, fd;

	u8 *raw;

	struct acpi_rsdp_descriptor rsdpx, *x = 0;

	char *filename = 0;

	char buff[80];

	memset(select_sig, 0, 4);

	print = 1;

	connect = 0;

	addr = length = 0;

	skip = 0;

	while (1) {

		option_index = 0;

		c = getopt_long(argc, argv, "a:t:o:bl:s:h",

				    long_options, &option_index);

		if (c == -1)

			break;
@@ -376,6 +394,9 @@ int main(int argc, char **argv) 
				length = strtoul(optarg, (char **)NULL, 16);

				break;

			case 5:

				skip = strtoul(optarg, (char **)NULL, 10);

				break;

			case 6:

				usage(argv[0]);

				exit(0);

			}
@@ -395,6 +416,9 @@ int main(int argc, char **argv) 
		case 'l':

			length = strtoul(optarg, (char **)NULL, 16);

			break;

		case 's':

			skip = strtoul(optarg, (char **)NULL, 10);

			break;

		case 'h':

			usage(argv[0]);

			exit(0);
@@ -405,7 +429,7 @@ int main(int argc, char **argv) 
		}

	}



	int fd = STDOUT_FILENO;

	fd = STDOUT_FILENO;

	if (filename) {

		fd = creat(filename, S_IRUSR|S_IWUSR|S_IRGRP|S_IROTH);

		if (fd < 0)
@@ -417,7 +441,6 @@ int main(int argc, char **argv) 
	}



	psz = sysconf(_SC_PAGESIZE);

	u8 *raw;

	if (length && addr) {

		/* We know length and address, it means we just want a memory dump */

		if (!(raw = acpi_map_memory(addr, length)))
@@ -436,7 +459,6 @@ int main(int argc, char **argv) 
		}

	}



	struct acpi_rsdp_descriptor rsdpx, *x = 0;

	if (!(raw = acpi_map_memory(addr, length)) ||

	    !(x = acpi_scan_for_rsdp(raw, length)))

		goto not_found;
@@ -454,7 +476,6 @@ int main(int argc, char **argv) 
		write(fd, x, (rsdpx.revision < 2) ?

			ACPI_RSDP_CHECKSUM_LENGTH : ACPI_RSDP_XCHECKSUM_LENGTH);

	} else if (!select_sig[0] || !memcmp("RSD PTR ", select_sig, 4)) {

		char buff[80];

		addr += (long)x - (long)raw;

		length = snprintf(buff, 80, "RSD PTR @ %p\n", (void *)addr);

		write(fd, buff, length);