[GitHub/mt8127/android_kernel_alcatel_ttab.git] / drivers / char / snsc.h

/*
 * 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_ */
Commit	Line	Data
1da177e4 LT	1	/*
	2	* SN Platform system controller communication support
	3	*
	4	* This file is subject to the terms and conditions of the GNU General Public
	5	* License. See the file "COPYING" in the main directory of this archive
	6	* for more details.
	7	*
28ff6b9b	8	* Copyright (C) 2004-2006 Silicon Graphics, Inc. All rights reserved.
1da177e4 LT	9	*/
	10
	11	/*
	12	* This file contains macros and data types for communication with the
	13	* system controllers in SGI SN systems.
	14	*/
	15
	16	#ifndef _SN_SYSCTL_H_
	17	#define _SN_SYSCTL_H_
	18
	19	#include <linux/types.h>
	20	#include <linux/spinlock.h>
	21	#include <linux/wait.h>
1da177e4 LT	22	#include <linux/fs.h>
1da177e4 LT	23	#include <linux/cdev.h>
6188e10d	24	#include <linux/semaphore.h>
1da177e4	25	#include <asm/sn/types.h>
1da177e4 LT	26
	27	#define CHUNKSIZE 127
	28
	29	/* This structure is used to track an open subchannel. */
	30	struct subch_data_s {
	31	nasid_t sd_nasid; /* node on which the subchannel was opened */
	32	int sd_subch; /* subchannel number */
	33	spinlock_t sd_rlock; /* monitor lock for rsv */
	34	spinlock_t sd_wlock; /* monitor lock for wsv */
	35	wait_queue_head_t sd_rq; /* wait queue for readers */
	36	wait_queue_head_t sd_wq; /* wait queue for writers */
	37	struct semaphore sd_rbs; /* semaphore for read buffer */
	38	struct semaphore sd_wbs; /* semaphore for write buffer */
	39
	40	char sd_rb[CHUNKSIZE]; /* read buffer */
	41	char sd_wb[CHUNKSIZE]; /* write buffer */
	42	};
	43
	44	struct sysctl_data_s {
	45	struct cdev scd_cdev; /* Character device info */
	46	nasid_t scd_nasid; /* Node on which subchannels are opened. */
	47	};
	48
67639deb GH	49
	50	/* argument types */
	51	#define IR_ARG_INT 0x00 /* 4-byte integer (big-endian) */
	52	#define IR_ARG_ASCII 0x01 /* null-terminated ASCII string */
	53	#define IR_ARG_UNKNOWN 0x80 /* unknown data type. The low
	54	* 7 bits will contain the data
	55	* length. */
	56	#define IR_ARG_UNKNOWN_LENGTH_MASK 0x7f
	57
	58
	59	/* system controller event codes */
	60	#define EV_CLASS_MASK 0xf000ul
	61	#define EV_SEVERITY_MASK 0x0f00ul
	62	#define EV_COMPONENT_MASK 0x00fful
	63
	64	#define EV_CLASS_POWER 0x1000ul
	65	#define EV_CLASS_FAN 0x2000ul
	66	#define EV_CLASS_TEMP 0x3000ul
	67	#define EV_CLASS_ENV 0x4000ul
	68	#define EV_CLASS_TEST_FAULT 0x5000ul
	69	#define EV_CLASS_TEST_WARNING 0x6000ul
	70	#define EV_CLASS_PWRD_NOTIFY 0x8000ul
	71
28ff6b9b AY	72	/* ENV class codes */
	73	#define ENV_PWRDN_PEND 0x4101ul
	74
67639deb GH	75	#define EV_SEVERITY_POWER_STABLE 0x0000ul
	76	#define EV_SEVERITY_POWER_LOW_WARNING 0x0100ul
	77	#define EV_SEVERITY_POWER_HIGH_WARNING 0x0200ul
	78	#define EV_SEVERITY_POWER_HIGH_FAULT 0x0300ul
	79	#define EV_SEVERITY_POWER_LOW_FAULT 0x0400ul
	80
	81	#define EV_SEVERITY_FAN_STABLE 0x0000ul
	82	#define EV_SEVERITY_FAN_WARNING 0x0100ul
	83	#define EV_SEVERITY_FAN_FAULT 0x0200ul
	84
	85	#define EV_SEVERITY_TEMP_STABLE 0x0000ul
	86	#define EV_SEVERITY_TEMP_ADVISORY 0x0100ul
	87	#define EV_SEVERITY_TEMP_CRITICAL 0x0200ul
	88	#define EV_SEVERITY_TEMP_FAULT 0x0300ul
	89
	90	void scdrv_event_init(struct sysctl_data_s *);
	91
1da177e4	92	#endif /* _SN_SYSCTL_H_ */