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[/] [test_project/] [trunk/] [linux_sd_driver/] [drivers/] [char/] [snsc.h] - Blame information for rev 62

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Line No. Rev Author Line
1 62 marcus.erl
/*
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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/kobject.h>
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#include <linux/fs.h>
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#include <linux/cdev.h>
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#include <asm/sn/types.h>
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#include <asm/semaphore.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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