summaryrefslogtreecommitdiff
path: root/sys/arch/i386/stand/libsa/apmprobe.c
diff options
context:
space:
mode:
authorTobias Weingartner <weingart@cvs.openbsd.org>1997-10-17 18:47:01 +0000
committerTobias Weingartner <weingart@cvs.openbsd.org>1997-10-17 18:47:01 +0000
commit743e0a15d53ec40dc90929a6aa44dad3b0793308 (patch)
tree36fabd9bdea3eef8a5232eaf76abe32e2c4d2e1b /sys/arch/i386/stand/libsa/apmprobe.c
parent41093f286d691912ac4dbf211375b21dbff49e4e (diff)
Cleanup, make it all compile.
Move APM stuff to apmprobe.c
Diffstat (limited to 'sys/arch/i386/stand/libsa/apmprobe.c')
-rw-r--r--sys/arch/i386/stand/libsa/apmprobe.c152
1 files changed, 152 insertions, 0 deletions
diff --git a/sys/arch/i386/stand/libsa/apmprobe.c b/sys/arch/i386/stand/libsa/apmprobe.c
new file mode 100644
index 00000000000..772fa478ef8
--- /dev/null
+++ b/sys/arch/i386/stand/libsa/apmprobe.c
@@ -0,0 +1,152 @@
+/* $OpenBSD: apmprobe.c,v 1.1 1997/10/17 18:46:53 weingart Exp $ */
+
+/*
+ * Copyright (c) 1997 Michael Shalayeff
+ * 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.
+ * 3. All advertising materials mentioning features or use of this software
+ * must display the following acknowledgement:
+ * This product includes software developed by Michael Shalayeff.
+ * 4. The name of the author may not be used to endorse or promote products
+ * derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 REGENTS 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.
+ *
+ */
+/*
+ * APM derived from: apm_init.S, LP (Laptop Package)
+ * wich contained this:
+ * Copyright (C) 1994 by HOSOKAWA, Tatsumi <hosokawa@mt.cs.keio.ac.jp>
+ *
+ */
+/*
+ * If you want to know the specification of APM BIOS, see the following
+ * documentations,
+ *
+ * [1] Intel Corporation and Microsoft Corporation, "Advanced Power
+ * Management, The Next Generation, Version 1.0", Feb.,1992.
+ *
+ * [2] Intel Corporation and Microsoft Corporation, "Advanced Power
+ * Management (APM) BIOS Interface Specification Revision 1.1",
+ * Sep.,1993, Intel Order Number: 241704-001, Microsoft Part
+ * Number: 781-110-X01
+ *
+ * or contact
+ *
+ * APM Support Desk (Intel Corporation, US)
+ * TEL: (800)628-8686
+ * FAX: (916)356-6100.
+ */
+
+#include "libsa.h"
+#include <machine/apmvar.h>
+#include <machine/biosvar.h>
+#include "debug.h"
+
+extern struct BIOS_vars BIOS_vars;
+
+static __inline u_int
+apm_check()
+{
+ register u_int detail;
+ register u_int8_t f;
+ __asm __volatile(DOINT(0x15) "\n\t"
+ "setc %b1\n\t"
+ "movzwl %%ax, %0\n\t"
+ "shll $16, %%ecx\n\t"
+ "orl %%ecx, %0"
+ : "=a" (detail), "=b" (f)
+ : "0" (APM_INSTCHECK), "1" (APM_DEV_APM_BIOS)
+ : "%ecx", "cc");
+ if (f || BIOS_regs.biosr_bx != 0x504d /* "PM" */ ) {
+#ifdef DEBUG
+ printf("apm_check: %x, %x, %x\n",
+ f, BIOS_regs.biosr_bx, detail);
+#endif
+ return 0;
+ } else
+ return detail;
+}
+
+static __inline int
+apm_disconnect()
+{
+ register u_int16_t rv;
+ __asm __volatile(DOINT(0x15) "\n\t"
+ "setc %b0"
+ : "=a" (rv)
+ : "0" (APM_DISCONNECT), "b" (APM_DEV_APM_BIOS)
+ : "%ecx", "%edx", "cc");
+ return (rv & 0xff)? rv >> 8 : 0;
+}
+
+static __inline int
+apm_connect()
+{
+ register u_int16_t f;
+ __asm __volatile (DOINT(0x15) "\n\t"
+ "setc %b1\n\t"
+ "movb %%ah, %h1\n\t"
+ "movzwl %%ax, %%eax\n\tshll $4, %0\n\t"
+ "movzwl %%cx, %%ecx\n\tshll $4, %2\n\t"
+ "movzwl %%dx, %%edx\n\tshll $4, %3\n\t"
+ : "=a" (BIOS_vars.bios_apm_code32_base),
+ "=b" (f),
+ "=c" (BIOS_vars.bios_apm_code16_base),
+ "=d" (BIOS_vars.bios_apm_data_base)
+ : "0" (APM_PROT32_CONNECT), "1" (APM_DEV_APM_BIOS)
+ : "cc");
+ BIOS_vars.bios_apm_entry = BIOS_regs.biosr_bx;
+#if 0
+ BIOS_vars.bios_apm_code_len = BIOS_regs.biosr_si & 0xffff;
+ BIOS_vars.bios_apm_data_len = BIOS_regs.biosr_di & 0xffff;
+#else
+ BIOS_vars.bios_apm_code_len = 0x10000;
+ BIOS_vars.bios_apm_data_len = 0x10000;
+#endif
+ return (f & 0xff)? f >> 8 : 0;
+}
+
+void
+apmprobe()
+{
+ if ((BIOS_vars.bios_apm_detail = apm_check())) {
+
+ printf("apm0");
+ apm_disconnect();
+ if (apm_connect() != 0)
+ printf(": connect error\n");
+#ifdef DEBUG
+ printf(": %x text=%x/%x[%x] data=%x[%x] @ %x",
+ BIOS_vars.bios_apm_detail,
+ BIOS_vars.bios_apm_code32_base,
+ BIOS_vars.bios_apm_code16_base,
+ BIOS_vars.bios_apm_code_len,
+ BIOS_vars.bios_apm_data_base,
+ BIOS_vars.bios_apm_data_len,
+ BIOS_vars.bios_apm_entry);
+#else
+ printf(" detected");
+#endif
+ putchar('\n');
+ }
+}
+