mirror of https://gitee.com/openkylin/linux.git
104 lines
3.4 KiB
C
104 lines
3.4 KiB
C
/* $Id: envctrl.h,v 1.3 2000/11/03 00:37:40 davem Exp $
|
|
*
|
|
* envctrl.h: Definitions for access to the i2c environment
|
|
* monitoring on Ultrasparc systems.
|
|
*
|
|
* Copyright (C) 1998 Eddie C. Dost (ecd@skynet.be)
|
|
* Copyright (C) 2000 Vinh Truong (vinh.truong@eng.sun.com)
|
|
* VT - Add all ioctl commands and environment status definitions
|
|
* VT - Add application note
|
|
*/
|
|
#ifndef _SPARC64_ENVCTRL_H
|
|
#define _SPARC64_ENVCTRL_H 1
|
|
|
|
#include <linux/ioctl.h>
|
|
|
|
/* Application note:
|
|
*
|
|
* The driver supports 4 operations: open(), close(), ioctl(), read()
|
|
* The device name is /dev/envctrl.
|
|
* Below is sample usage:
|
|
*
|
|
* fd = open("/dev/envtrl", O_RDONLY);
|
|
* if (ioctl(fd, ENVCTRL_READ_SHUTDOWN_TEMPERATURE, 0) < 0)
|
|
* printf("error\n");
|
|
* ret = read(fd, buf, 10);
|
|
* close(fd);
|
|
*
|
|
* Notice in the case of cpu voltage and temperature, the default is
|
|
* cpu0. If we need to know the info of cpu1, cpu2, cpu3, we need to
|
|
* pass in cpu number in ioctl() last parameter. For example, to
|
|
* get the voltage of cpu2:
|
|
*
|
|
* ioctlbuf[0] = 2;
|
|
* if (ioctl(fd, ENVCTRL_READ_CPU_VOLTAGE, ioctlbuf) < 0)
|
|
* printf("error\n");
|
|
* ret = read(fd, buf, 10);
|
|
*
|
|
* All the return values are in ascii. So check read return value
|
|
* and do appropriate conversions in your application.
|
|
*/
|
|
|
|
/* IOCTL commands */
|
|
|
|
/* Note: these commands reflect possible monitor features.
|
|
* Some boards choose to support some of the features only.
|
|
*/
|
|
#define ENVCTRL_RD_CPU_TEMPERATURE _IOR('p', 0x40, int)
|
|
#define ENVCTRL_RD_CPU_VOLTAGE _IOR('p', 0x41, int)
|
|
#define ENVCTRL_RD_FAN_STATUS _IOR('p', 0x42, int)
|
|
#define ENVCTRL_RD_WARNING_TEMPERATURE _IOR('p', 0x43, int)
|
|
#define ENVCTRL_RD_SHUTDOWN_TEMPERATURE _IOR('p', 0x44, int)
|
|
#define ENVCTRL_RD_VOLTAGE_STATUS _IOR('p', 0x45, int)
|
|
#define ENVCTRL_RD_SCSI_TEMPERATURE _IOR('p', 0x46, int)
|
|
#define ENVCTRL_RD_ETHERNET_TEMPERATURE _IOR('p', 0x47, int)
|
|
#define ENVCTRL_RD_MTHRBD_TEMPERATURE _IOR('p', 0x48, int)
|
|
|
|
#define ENVCTRL_RD_GLOBALADDRESS _IOR('p', 0x49, int)
|
|
|
|
/* Read return values for a voltage status request. */
|
|
#define ENVCTRL_VOLTAGE_POWERSUPPLY_GOOD 0x01
|
|
#define ENVCTRL_VOLTAGE_BAD 0x02
|
|
#define ENVCTRL_POWERSUPPLY_BAD 0x03
|
|
#define ENVCTRL_VOLTAGE_POWERSUPPLY_BAD 0x04
|
|
|
|
/* Read return values for a fan status request.
|
|
* A failure match means either the fan fails or
|
|
* the fan is not connected. Some boards have optional
|
|
* connectors to connect extra fans.
|
|
*
|
|
* There are maximum 8 monitor fans. Some are cpu fans
|
|
* some are system fans. The mask below only indicates
|
|
* fan by order number.
|
|
* Below is a sample application:
|
|
*
|
|
* if (ioctl(fd, ENVCTRL_READ_FAN_STATUS, 0) < 0) {
|
|
* printf("ioctl fan failed\n");
|
|
* }
|
|
* if (read(fd, rslt, 1) <= 0) {
|
|
* printf("error or fan not monitored\n");
|
|
* } else {
|
|
* if (rslt[0] == ENVCTRL_ALL_FANS_GOOD) {
|
|
* printf("all fans good\n");
|
|
* } else if (rslt[0] == ENVCTRL_ALL_FANS_BAD) {
|
|
* printf("all fans bad\n");
|
|
* } else {
|
|
* if (rslt[0] & ENVCTRL_FAN0_FAILURE_MASK) {
|
|
* printf("fan 0 failed or not connected\n");
|
|
* }
|
|
* ......
|
|
*/
|
|
|
|
#define ENVCTRL_ALL_FANS_GOOD 0x00
|
|
#define ENVCTRL_FAN0_FAILURE_MASK 0x01
|
|
#define ENVCTRL_FAN1_FAILURE_MASK 0x02
|
|
#define ENVCTRL_FAN2_FAILURE_MASK 0x04
|
|
#define ENVCTRL_FAN3_FAILURE_MASK 0x08
|
|
#define ENVCTRL_FAN4_FAILURE_MASK 0x10
|
|
#define ENVCTRL_FAN5_FAILURE_MASK 0x20
|
|
#define ENVCTRL_FAN6_FAILURE_MASK 0x40
|
|
#define ENVCTRL_FAN7_FAILURE_MASK 0x80
|
|
#define ENVCTRL_ALL_FANS_BAD 0xFF
|
|
|
|
#endif /* !(_SPARC64_ENVCTRL_H) */
|