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(I'm so sorry!) Linux kernel mirror (for testing) git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel os linux
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123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note *//* * * 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) */