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authorSam Ravnborg <sam@ravnborg.org>2008-06-13 08:26:32 +0200
committerDavid S. Miller <davem@davemloft.net>2008-07-17 21:40:49 -0700
commit09d3e1baa1f23bba39950990c5dddfb7fcc86238 (patch)
treecff6a633c672e985a481b631d2c66ad784f71427 /include/asm-sparc/envctrl.h
parent9ae95bce73ef2d12fbe32a03ed230a9bef667328 (diff)
sparc: copy exported sparc64 specific header files to asm-sparc
Copy was done using the following simple script: set -e SPARC64="h display7seg.h envctrl.h psrcompat.h pstate.h uctx.h utrap.h watchdog.h" for FILE in ${SPARC64}; do if [ -f asm-sparc/$FILE ]; then echo $FILE exist in asm-sparc fi cat asm-sparc64/$FILE > asm-sparc/$FILE printf "#include <asm-sparc/$FILE>\n" > asm-sparc64/$FILE done The name of the copied files are added to asm-sparc/Kbuild to keep "make headers_check" functional. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Diffstat (limited to 'include/asm-sparc/envctrl.h')
-rw-r--r--include/asm-sparc/envctrl.h103
1 files changed, 103 insertions, 0 deletions
diff --git a/include/asm-sparc/envctrl.h b/include/asm-sparc/envctrl.h
new file mode 100644
index 00000000000..624fa7e2da8
--- /dev/null
+++ b/include/asm-sparc/envctrl.h
@@ -0,0 +1,103 @@
+/*
+ *
+ * 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) */