xref: /freebsd/usr.sbin/acpi/acpidump/acpi.c (revision e1e9a4bf77df02678428853e90647d58934683e1)

/*-
 * Copyright (c) 1998 Doug Rabson
 * Copyright (c) 2000 Mitsuru IWASAKI <iwasaki@FreeBSD.org>
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 *
 *	$Id: acpi.c,v 1.4 2000/08/09 14:47:52 iwasaki Exp $
 *	$FreeBSD$
 */

#include <sys/param.h>
#include <sys/stat.h>
#include <sys/acpi.h>

#include <assert.h>
#include <err.h>
#include <fcntl.h>
#include <stdio.h>
#include <unistd.h>

#include "acpidump.h"

static void
acpi_print_string(char *s, size_t length)
{
	int	c;

	/* Trim trailing spaces and NULLs */
	while (length > 0 && (s[length - 1] == ' ' || s[length - 1] == '\0'))
		length--;

	while (length--) {
		c = *s++;
		putchar(c);
	}
}

static void
acpi_handle_dsdt(struct ACPIsdt *dsdp)
{
	u_int8_t       *dp;
	u_int8_t       *end;

	acpi_print_dsdt(dsdp);
	dp = (u_int8_t *)dsdp->body;
	end = (u_int8_t *)dsdp + dsdp->len;
	asl_dump_objectlist(&dp, end, 0);
	assert(dp == end);
}

static void
acpi_handle_facp(struct FACPbody *facp)
{
	struct	ACPIsdt *dsdp;

	acpi_print_facp(facp);
	dsdp = (struct ACPIsdt *) acpi_map_sdt(facp->dsdt_ptr);
	if (acpi_checksum(dsdp, dsdp->len))
		errx(1, "DSDT is corrupt\n");
	acpi_handle_dsdt(dsdp);
	aml_dump(dsdp->body, dsdp->len - SIZEOF_SDT_HDR);
}

/*
 * Public interfaces
 */

void
acpi_print_sdt(struct ACPIsdt *sdp)
{

	acpi_print_string(sdp->signature, 4);
	printf(": Lenth=%d, Revision=%d, Checksum=%d,\n",
	       sdp->len, sdp->rev, sdp->check);
	printf("\tOEMID=");
	acpi_print_string(sdp->oemid, 6);
	printf(", OEM Table ID=");
	acpi_print_string(sdp->oemtblid, 8);
	printf(", OEM Revision=0x%x,\n", sdp->oemrev);
	printf("\tCreator ID=");
	acpi_print_string(sdp->creator, 4);
	printf(", Creator Revision=0x%x\n", sdp->crerev);
}

void
acpi_print_rsdt(struct ACPIsdt *rsdp)
{
	int	i, entries;

	acpi_print_sdt(rsdp);
	entries = (rsdp->len - SIZEOF_SDT_HDR) / sizeof(u_int32_t);
	printf("\tEntries={ ");
	for (i = 0; i < entries; i++) {
		if (i > 0)
			printf(", ");
		printf("0x%08x", rsdp->body[i]);
	}
	printf(" }\n");
}

void
acpi_print_facp(struct FACPbody *facp)
{
	char	sep;

	printf("\tDSDT=0x%x\n", facp->dsdt_ptr);
	printf("\tINT_MODEL=%s\n", facp->int_model ? "APIC" : "PIC");
	printf("\tSCI_INT=%d\n", facp->sci_int);
	printf("\tSMI_CMD=0x%x, ", facp->smi_cmd);
	printf("ACPI_ENABLE=0x%x, ", facp->acpi_enable);
	printf("ACPI_DISABLE=0x%x, ", facp->acpi_disable);
	printf("S4BIOS_REQ=0x%x\n", facp->s4biosreq);
	if (facp->pm1a_evt_blk)
		printf("\tPM1a_EVT_BLK=0x%x-0x%x\n",
		       facp->pm1a_evt_blk,
		       facp->pm1a_evt_blk + facp->pm1_evt_len - 1);
	if (facp->pm1b_evt_blk)
		printf("\tPM1b_EVT_BLK=0x%x-0x%x\n",
		       facp->pm1b_evt_blk,
		       facp->pm1b_evt_blk + facp->pm1_evt_len - 1);
	if (facp->pm1a_cnt_blk)
		printf("\tPM1a_CNT_BLK=0x%x-0x%x\n",
		       facp->pm1a_cnt_blk,
		       facp->pm1a_cnt_blk + facp->pm1_cnt_len - 1);
	if (facp->pm1b_cnt_blk)
		printf("\tPM1b_CNT_BLK=0x%x-0x%x\n",
		       facp->pm1b_cnt_blk,
		       facp->pm1b_cnt_blk + facp->pm1_cnt_len - 1);
	if (facp->pm2_cnt_blk)
		printf("\tPM2_CNT_BLK=0x%x-0x%x\n",
		       facp->pm2_cnt_blk,
		       facp->pm2_cnt_blk + facp->pm2_cnt_len - 1);
	if (facp->pm_tmr_blk)
		printf("\tPM2_TMR_BLK=0x%x-0x%x\n",
		       facp->pm_tmr_blk,
		       facp->pm_tmr_blk + facp->pm_tmr_len - 1);
	if (facp->gpe0_blk)
		printf("\tPM2_GPE0_BLK=0x%x-0x%x\n",
		       facp->gpe0_blk,
		       facp->gpe0_blk + facp->gpe0_len - 1);
	if (facp->gpe1_blk)
		printf("\tPM2_GPE1_BLK=0x%x-0x%x, GPE1_BASE=%d\n",
		       facp->gpe1_blk,
		       facp->gpe1_blk + facp->gpe1_len - 1,
		       facp->gpe1_base);
	printf("\tP_LVL2_LAT=%dms, P_LVL3_LAT=%dms\n",
	       facp->p_lvl2_lat, facp->p_lvl3_lat);
	printf("\tFLUSH_SIZE=%d, FLUSH_STRIDE=%d\n",
	       facp->flush_size, facp->flush_stride);
	printf("\tDUTY_OFFSET=%d, DUTY_WIDTH=%d\n",
	       facp->duty_off, facp->duty_width);
	printf("\tDAY_ALRM=%d, MON_ALRM=%d, CENTURY=%d\n",
	       facp->day_alrm, facp->mon_alrm, facp->century);
	printf("\tFlags=");
	sep = '{';

#define PRINTFLAG(xx) do {					\
	if (facp->flags & ACPI_FACP_FLAG_## xx) {		\
		printf("%c%s", sep, #xx); sep = ',';		\
	}							\
} while (0)

	PRINTFLAG(WBINVD);
	PRINTFLAG(WBINVD_FLUSH);
	PRINTFLAG(PROC_C1);
	PRINTFLAG(P_LVL2_UP);
	PRINTFLAG(PWR_BUTTON);
	PRINTFLAG(SLP_BUTTON);
	PRINTFLAG(FIX_RTC);
	PRINTFLAG(RTC_S4);
	PRINTFLAG(TMR_VAL_EXT);
	PRINTFLAG(DCK_CAP);

#undef PRINTFLAG

	printf("}\n");
}

void
acpi_print_dsdt(struct ACPIsdt *dsdp)
{

	acpi_print_sdt(dsdp);
}

int
acpi_checksum(void *p, size_t length)
{
	u_int8_t	*bp;
	u_int8_t	sum;

	bp = p;
	sum = 0;
	while (length--)
		sum += *bp++;

	return (sum);
}

struct ACPIsdt *
acpi_map_sdt(vm_offset_t pa)
{
	struct	ACPIsdt *sp;

	sp = acpi_map_physical(pa, sizeof(struct ACPIsdt));
	sp = acpi_map_physical(pa, sp->len);
	return (sp);
}

void
acpi_print_rsd_ptr(struct ACPIrsdp *rp)
{

	printf("RSD PTR: Checksum=%d, OEMID=", rp->sum);
	acpi_print_string(rp->oem, 6);
	printf(", RsdtAddress=0x%08x\n", rp->addr);
}

void
acpi_handle_rsdt(struct ACPIsdt *rsdp)
{
	int	i;
	int	entries;
	struct	ACPIsdt *sdp;

	entries = (rsdp->len - SIZEOF_SDT_HDR) / sizeof(u_int32_t);
	acpi_print_rsdt(rsdp);
	for (i = 0; i < entries; i++) {
		sdp = (struct ACPIsdt *) acpi_map_sdt(rsdp->body[i]);
		if (acpi_checksum(sdp, sdp->len))
			errx(1, "RSDT entry %d is corrupt\n", i);
		if (!memcmp(sdp->signature, "FACP", 4)) {
			acpi_handle_facp((struct FACPbody *) sdp->body);
		} else {
			acpi_print_sdt(sdp);
		}
	}
}