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