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Add support for ACPI 2.x and the XSDT.

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Submitted by:	marcel
This commit is contained in:
Nate Lawson 2003-09-09 08:54:04 +00:00
parent 8e6a8737d7
commit a74172ab68
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=119913
1 changed files with 77 additions and 25 deletions
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102
usr.sbin/acpi/acpidump/acpi.c
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@ -27,8 +27,8 @@
* $FreeBSD$
*/
#include <sys/types.h>
#include <sys/param.h>
#include <sys/endian.h>
#include <sys/stat.h>
#include <sys/wait.h>
#include <assert.h>
@ -60,11 +60,15 @@ static void acpi_print_sdt(struct ACPIsdt *sdp, int endcomment);
static void acpi_print_fadt(struct FADTbody *fadt);
static void acpi_print_facs(struct FACSbody *facs);
static void acpi_print_dsdt(struct ACPIsdt *dsdp);
static struct ACPIsdt *
acpi_map_sdt(vm_offset_t pa);
static struct ACPIsdt *acpi_map_sdt(vm_offset_t pa);
static void acpi_print_rsd_ptr(struct ACPIrsdp *rp);
static void acpi_handle_rsdt(struct ACPIsdt *rsdp);
/*
* Size of an address. 32-bit for ACPI 1.0, 64-bit for ACPI 2.0 and up.
*/
static int addr_size;
static void
acpi_print_string(char *s, size_t length)
{
@ -341,14 +345,26 @@ static void
acpi_print_rsdt(struct ACPIsdt *rsdp)
{
int i, entries;
u_long addr;
acpi_print_sdt(rsdp, /*endcomment*/0);
entries = (rsdp->len - SIZEOF_SDT_HDR) / sizeof(u_int32_t);
entries = (rsdp->len - SIZEOF_SDT_HDR) / addr_size;
printf("\tEntries={ ");
for (i = 0; i < entries; i++) {
if (i > 0)
printf(", ");
printf("0x%08x", rsdp->body[i]);
switch (addr_size) {
case 4:
addr = le32dec((char*)rsdp->body + i * addr_size);
break;
case 8:
addr = le64dec((char*)rsdp->body + i * addr_size);
break;
default:
addr = 0;
}
assert(addr != 0);
printf("0x%08lx", addr);
}
printf(" }\n");
printf(END_COMMENT);
@ -528,25 +544,42 @@ acpi_map_sdt(vm_offset_t pa)
static void
acpi_print_rsd_ptr(struct ACPIrsdp *rp)
{
printf(BEGIN_COMMENT);
printf(" RSD PTR: Checksum=%d, OEMID=", rp->sum);
printf(" RSD PTR: OEM=");
acpi_print_string(rp->oem, 6);
printf(", RsdtAddress=0x%08x\n", rp->rsdt_addr);
printf(", ACPI_Rev=%s (%d)\n", rp->revision < 2 ? "1.x" : "2.x",
rp->revision);
if (rp->revision < 2) {
printf("\tRSDT=0x%08x, cksum=%u\n", rp->rsdt_addr, rp->sum);
} else {
printf("\tXSDT=0x%08lx, length=%u, cksum=%u\n",
(u_long)rp->xsdt_addr, rp->length, rp->xsum);
}
printf(END_COMMENT);
}
static void
acpi_handle_rsdt(struct ACPIsdt *rsdp)
{
int i;
int entries;
struct ACPIsdt *sdp;
struct ACPIsdt *sdp;
vm_offset_t addr;
int entries, i;
entries = (rsdp->len - SIZEOF_SDT_HDR) / sizeof(u_int32_t);
acpi_print_rsdt(rsdp);
entries = (rsdp->len - SIZEOF_SDT_HDR) / addr_size;
for (i = 0; i < entries; i++) {
sdp = (struct ACPIsdt *)acpi_map_sdt(rsdp->body[i]);
switch (addr_size) {
case 4:
addr = le32dec((char*)rsdp->body + i * addr_size);
break;
case 8:
addr = le64dec((char*)rsdp->body + i * addr_size);
break;
default:
assert((addr = 0));
}
sdp = (struct ACPIsdt *)acpi_map_sdt(addr);
if (acpi_checksum(sdp, sdp->len))
errx(1, "RSDT entry %d is corrupt", i);
if (!memcmp(sdp->signature, "FACP", 4))
@ -572,11 +605,19 @@ sdt_load_devmem()
if (tflag)
acpi_print_rsd_ptr(rp);
rsdp = (struct ACPIsdt *)acpi_map_sdt(rp->rsdt_addr);
if (memcmp(rsdp->signature, "RSDT", 4) != 0 ||
acpi_checksum(rsdp, rsdp->len) != 0)
errx(1, "RSDT is corrupted");
if (rp->revision < 2) {
rsdp = (struct ACPIsdt *)acpi_map_sdt(rp->rsdt_addr);
if (memcmp(rsdp->signature, "RSDT", 4) != 0 ||
acpi_checksum(rsdp, rsdp->len) != 0)
errx(1, "RSDT is corrupted");
addr_size = sizeof(uint32_t);
} else {
rsdp = (struct ACPIsdt *)acpi_map_sdt(rp->xsdt_addr);
if (memcmp(rsdp->signature, "XSDT", 4) != 0 ||
acpi_checksum(rsdp, rsdp->len) != 0)
errx(1, "XSDT is corrupted");
addr_size = sizeof(uint64_t);
}
return (rsdp);
}
@ -651,17 +692,28 @@ sdt_print_all(struct ACPIsdt *rsdp)
struct ACPIsdt *
sdt_from_rsdt(struct ACPIsdt *rsdt, const char *sig)
{
int i;
int entries;
struct ACPIsdt *sdt;
struct ACPIsdt *sdt;
vm_offset_t addr;
int entries, i;
entries = (rsdt->len - SIZEOF_SDT_HDR) / sizeof(uint32_t);
entries = (rsdt->len - SIZEOF_SDT_HDR) / addr_size;
for (i = 0; i < entries; i++) {
sdt = (struct ACPIsdt *)acpi_map_sdt(rsdt->body[i]);
switch (addr_size) {
case 4:
addr = le32dec((char*)rsdt->body + i * addr_size);
break;
case 8:
addr = le64dec((char*)rsdt->body + i * addr_size);
break;
default:
assert((addr = 0));
}
sdt = (struct ACPIsdt *)acpi_map_sdt(addr);
if (memcmp(sdt->signature, sig, strlen(sig)))
continue;
if (acpi_checksum(sdt, sdt->len))
errx(1, "RSDT entry %d is corrupt", i);
if (!memcmp(sdt->signature, sig, strlen(sig)))
return (sdt);
return (sdt);
}
return (NULL);