Import of Linux/MIPS 2.1.14

1 files changed, 141 insertions, 0 deletions

diff --git a/include/linux/apm_bios.h b/include/linux/apm_bios.h
new file mode 100644
index 000000000..326445110
--- /dev/null
+++ b/include/linux/apm_bios.h
@@ -0,0 +1,141 @@
+#ifndef _LINUX_APM_H
+#define _LINUX_APM_H
+
+/*
+ * Include file for the interface to an APM BIOS
+ * Copyright 1994, 1995 Stephen Rothwell (Stephen.Rothwell@pd.necisa.oz.au)
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2, or (at your option) any
+ * later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * $Id: apm_bios.h,v 0.9 1995/03/09 13:50:05 sfr Exp $
+ */
+
+typedef unsigned short	apm_event_t;
+
+#ifdef __KERNEL__
+
+#include <linux/tasks.h>	/* for NR_TASKS */
+#include <linux/sched.h>	/* for _TSS */
+
+#define APM_CS		_TSS(NR_TASKS)
+#define APM_CS_16	(APM_CS + 8)
+#define APM_DS		(APM_CS_16 + 8)
+
+struct apm_bios_info {
+	unsigned short	version;
+	unsigned short	cseg;
+	unsigned long	offset;
+	unsigned short	cseg_16;
+	unsigned short	dseg;
+	unsigned short	flags;
+	unsigned short	cseg_len;
+	unsigned short	dseg_len;
+};
+
+				/* Results of APM Installation Check */
+#define APM_16_BIT_SUPPORT	0x0001
+#define APM_32_BIT_SUPPORT	0x0002
+#define APM_IDLE_SLOWS_CLOCK	0x0004
+#define APM_BIOS_DISABLED      	0x0008
+#define APM_BIOS_DISENGAGED     0x0010
+
+/*
+ * Maximum number of events stored
+ */
+#define APM_MAX_EVENTS		20
+
+/*
+ * The per-file APM data
+ */
+struct apm_bios_struct {
+	int		magic;
+	struct apm_bios_struct *	next;
+	int		suser;
+	int		suspends_pending;
+	int		standbys_pending;
+	int		suspends_read;
+	int		standbys_read;
+	int		event_head;
+	int		event_tail;
+	apm_event_t	events[APM_MAX_EVENTS];
+};
+
+/*
+ * The magic number in apm_bios_struct
+ */
+#define APM_BIOS_MAGIC		0x4101
+
+/*
+ * in init/main.c
+ */
+extern struct apm_bios_info	apm_bios_info;
+
+extern void		apm_bios_init(void);
+
+extern int		apm_register_callback(int (*callback)(apm_event_t));
+extern void		apm_unregister_callback(int (*callback)(apm_event_t));
+
+extern int		apm_set_power_state(ushort state);
+extern int		apm_display_blank(void);
+extern int		apm_display_unblank(void);
+
+#endif	/* __KERNEL__ */
+
+/*
+ * Power states
+ */
+#define APM_STATE_READY		0x0000
+#define APM_STATE_STANDBY	0x0001
+#define APM_STATE_SUSPEND	0x0002
+#define APM_STATE_OFF		0x0003
+#define APM_STATE_BUSY		0x0004
+#define APM_STATE_REJECT	0x0005
+
+/*
+ * Events (results of Get PM Event)
+ */
+#define APM_SYS_STANDBY		0x0001
+#define APM_SYS_SUSPEND		0x0002
+#define APM_NORMAL_RESUME	0x0003
+#define APM_CRITICAL_RESUME	0x0004
+#define APM_LOW_BATTERY		0x0005
+#define APM_POWER_STATUS_CHANGE	0x0006
+#define APM_UPDATE_TIME		0x0007
+#define APM_CRITICAL_SUSPEND	0x0008
+#define APM_USER_STANDBY	0x0009
+#define APM_USER_SUSPEND	0x000a
+#define APM_STANDBY_RESUME	0x000b
+
+/*
+ * Error codes
+ */
+#define APM_SUCCESS		0x00
+#define APM_DISABLED		0x01
+#define APM_CONNECTED		0x02
+#define APM_NOT_CONNECTED	0x03
+#define APM_16_CONNECTED	0x05
+#define APM_16_UNSUPPORTED	0x06
+#define APM_32_CONNECTED	0x07
+#define APM_32_UNSUPPORTED	0x08
+#define APM_BAD_DEVICE		0x09
+#define APM_BAD_PARAM		0x0a
+#define APM_NOT_ENGAGED		0x0b
+#define APM_BAD_STATE		0x60
+#define APM_NO_EVENTS		0x80
+#define APM_NOT_PRESENT		0x86
+
+/* ioctl operations */
+#include <linux/ioctl.h>
+
+#define APM_IOC_STANDBY		_IO('A', 1)
+#define APM_IOC_SUSPEND		_IO('A', 2)
+
+#endif	/* LINUX_APM_H */