aboutsummaryrefslogtreecommitdiffstats
path: root/include/asm-sparc64/envctrl.h
diff options
context:
space:
mode:
authorLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 18:20:36 -0400
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 18:20:36 -0400
commit1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch)
tree0bba044c4ce775e45a88a51686b5d9f90697ea9d /include/asm-sparc64/envctrl.h
Linux-2.6.12-rc2v2.6.12-rc2
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
Diffstat (limited to 'include/asm-sparc64/envctrl.h')
-rw-r--r--include/asm-sparc64/envctrl.h103
1 files changed, 103 insertions, 0 deletions
diff --git a/include/asm-sparc64/envctrl.h b/include/asm-sparc64/envctrl.h
new file mode 100644
index 000000000000..53a6653815eb
--- /dev/null
+++ b/include/asm-sparc64/envctrl.h
@@ -0,0 +1,103 @@
1/* $Id: envctrl.h,v 1.3 2000/11/03 00:37:40 davem Exp $
2 *
3 * envctrl.h: Definitions for access to the i2c environment
4 * monitoring on Ultrasparc systems.
5 *
6 * Copyright (C) 1998 Eddie C. Dost (ecd@skynet.be)
7 * Copyright (C) 2000 Vinh Truong (vinh.truong@eng.sun.com)
8 * VT - Add all ioctl commands and environment status definitions
9 * VT - Add application note
10 */
11#ifndef _SPARC64_ENVCTRL_H
12#define _SPARC64_ENVCTRL_H 1
13
14#include <linux/ioctl.h>
15
16/* Application note:
17 *
18 * The driver supports 4 operations: open(), close(), ioctl(), read()
19 * The device name is /dev/envctrl.
20 * Below is sample usage:
21 *
22 * fd = open("/dev/envtrl", O_RDONLY);
23 * if (ioctl(fd, ENVCTRL_READ_SHUTDOWN_TEMPERATURE, 0) < 0)
24 * printf("error\n");
25 * ret = read(fd, buf, 10);
26 * close(fd);
27 *
28 * Notice in the case of cpu voltage and temperature, the default is
29 * cpu0. If we need to know the info of cpu1, cpu2, cpu3, we need to
30 * pass in cpu number in ioctl() last parameter. For example, to
31 * get the voltage of cpu2:
32 *
33 * ioctlbuf[0] = 2;
34 * if (ioctl(fd, ENVCTRL_READ_CPU_VOLTAGE, ioctlbuf) < 0)
35 * printf("error\n");
36 * ret = read(fd, buf, 10);
37 *
38 * All the return values are in ascii. So check read return value
39 * and do appropriate conversions in your application.
40 */
41
42/* IOCTL commands */
43
44/* Note: these commands reflect possible monitor features.
45 * Some boards choose to support some of the features only.
46 */
47#define ENVCTRL_RD_CPU_TEMPERATURE _IOR('p', 0x40, int)
48#define ENVCTRL_RD_CPU_VOLTAGE _IOR('p', 0x41, int)
49#define ENVCTRL_RD_FAN_STATUS _IOR('p', 0x42, int)
50#define ENVCTRL_RD_WARNING_TEMPERATURE _IOR('p', 0x43, int)
51#define ENVCTRL_RD_SHUTDOWN_TEMPERATURE _IOR('p', 0x44, int)
52#define ENVCTRL_RD_VOLTAGE_STATUS _IOR('p', 0x45, int)
53#define ENVCTRL_RD_SCSI_TEMPERATURE _IOR('p', 0x46, int)
54#define ENVCTRL_RD_ETHERNET_TEMPERATURE _IOR('p', 0x47, int)
55#define ENVCTRL_RD_MTHRBD_TEMPERATURE _IOR('p', 0x48, int)
56
57#define ENVCTRL_RD_GLOBALADDRESS _IOR('p', 0x49, int)
58
59/* Read return values for a voltage status request. */
60#define ENVCTRL_VOLTAGE_POWERSUPPLY_GOOD 0x01
61#define ENVCTRL_VOLTAGE_BAD 0x02
62#define ENVCTRL_POWERSUPPLY_BAD 0x03
63#define ENVCTRL_VOLTAGE_POWERSUPPLY_BAD 0x04
64
65/* Read return values for a fan status request.
66 * A failure match means either the fan fails or
67 * the fan is not connected. Some boards have optional
68 * connectors to connect extra fans.
69 *
70 * There are maximum 8 monitor fans. Some are cpu fans
71 * some are system fans. The mask below only indicates
72 * fan by order number.
73 * Below is a sample application:
74 *
75 * if (ioctl(fd, ENVCTRL_READ_FAN_STATUS, 0) < 0) {
76 * printf("ioctl fan failed\n");
77 * }
78 * if (read(fd, rslt, 1) <= 0) {
79 * printf("error or fan not monitored\n");
80 * } else {
81 * if (rslt[0] == ENVCTRL_ALL_FANS_GOOD) {
82 * printf("all fans good\n");
83 * } else if (rslt[0] == ENVCTRL_ALL_FANS_BAD) {
84 * printf("all fans bad\n");
85 * } else {
86 * if (rslt[0] & ENVCTRL_FAN0_FAILURE_MASK) {
87 * printf("fan 0 failed or not connected\n");
88 * }
89 * ......
90 */
91
92#define ENVCTRL_ALL_FANS_GOOD 0x00
93#define ENVCTRL_FAN0_FAILURE_MASK 0x01
94#define ENVCTRL_FAN1_FAILURE_MASK 0x02
95#define ENVCTRL_FAN2_FAILURE_MASK 0x04
96#define ENVCTRL_FAN3_FAILURE_MASK 0x08
97#define ENVCTRL_FAN4_FAILURE_MASK 0x10
98#define ENVCTRL_FAN5_FAILURE_MASK 0x20
99#define ENVCTRL_FAN6_FAILURE_MASK 0x40
100#define ENVCTRL_FAN7_FAILURE_MASK 0x80
101#define ENVCTRL_ALL_FANS_BAD 0xFF
102
103#endif /* !(_SPARC64_ENVCTRL_H) */