/*
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* SN Platform system controller communication support
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*
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* This file is subject to the terms and conditions of the GNU General Public
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* License. See the file "COPYING" in the main directory of this archive
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* for more details.
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*
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* Copyright (C) 2004-2006 Silicon Graphics, Inc. All rights reserved.
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*/
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/*
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* This file contains macros and data types for communication with the
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* system controllers in SGI SN systems.
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*/
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#ifndef _SN_SYSCTL_H_
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#define _SN_SYSCTL_H_
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#include <linux/types.h>
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#include <linux/spinlock.h>
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#include <linux/wait.h>
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#include <linux/fs.h>
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#include <linux/cdev.h>
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#include <linux/semaphore.h>
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#include <asm/sn/types.h>
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#define CHUNKSIZE 127
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/* This structure is used to track an open subchannel. */
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struct subch_data_s {
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nasid_t sd_nasid; /* node on which the subchannel was opened */
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int sd_subch; /* subchannel number */
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spinlock_t sd_rlock; /* monitor lock for rsv */
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spinlock_t sd_wlock; /* monitor lock for wsv */
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wait_queue_head_t sd_rq; /* wait queue for readers */
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wait_queue_head_t sd_wq; /* wait queue for writers */
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struct semaphore sd_rbs; /* semaphore for read buffer */
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struct semaphore sd_wbs; /* semaphore for write buffer */
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char sd_rb[CHUNKSIZE]; /* read buffer */
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char sd_wb[CHUNKSIZE]; /* write buffer */
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};
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struct sysctl_data_s {
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struct cdev scd_cdev; /* Character device info */
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nasid_t scd_nasid; /* Node on which subchannels are opened. */
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};
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/* argument types */
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#define IR_ARG_INT 0x00 /* 4-byte integer (big-endian) */
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#define IR_ARG_ASCII 0x01 /* null-terminated ASCII string */
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#define IR_ARG_UNKNOWN 0x80 /* unknown data type. The low
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* 7 bits will contain the data
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* length. */
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#define IR_ARG_UNKNOWN_LENGTH_MASK 0x7f
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/* system controller event codes */
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#define EV_CLASS_MASK 0xf000ul
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#define EV_SEVERITY_MASK 0x0f00ul
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#define EV_COMPONENT_MASK 0x00fful
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#define EV_CLASS_POWER 0x1000ul
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#define EV_CLASS_FAN 0x2000ul
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#define EV_CLASS_TEMP 0x3000ul
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#define EV_CLASS_ENV 0x4000ul
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#define EV_CLASS_TEST_FAULT 0x5000ul
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#define EV_CLASS_TEST_WARNING 0x6000ul
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#define EV_CLASS_PWRD_NOTIFY 0x8000ul
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/* ENV class codes */
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#define ENV_PWRDN_PEND 0x4101ul
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#define EV_SEVERITY_POWER_STABLE 0x0000ul
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#define EV_SEVERITY_POWER_LOW_WARNING 0x0100ul
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#define EV_SEVERITY_POWER_HIGH_WARNING 0x0200ul
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#define EV_SEVERITY_POWER_HIGH_FAULT 0x0300ul
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#define EV_SEVERITY_POWER_LOW_FAULT 0x0400ul
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#define EV_SEVERITY_FAN_STABLE 0x0000ul
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#define EV_SEVERITY_FAN_WARNING 0x0100ul
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#define EV_SEVERITY_FAN_FAULT 0x0200ul
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#define EV_SEVERITY_TEMP_STABLE 0x0000ul
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#define EV_SEVERITY_TEMP_ADVISORY 0x0100ul
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#define EV_SEVERITY_TEMP_CRITICAL 0x0200ul
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#define EV_SEVERITY_TEMP_FAULT 0x0300ul
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void scdrv_event_init(struct sysctl_data_s *);
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#endif /* _SN_SYSCTL_H_ */
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