Add the rt linux 4.1.3-rt3 as base

[kvmfornfv.git] / kernel / drivers / char / snsc.h

diff --git a/kernel/drivers/char/snsc.h b/kernel/drivers/char/snsc.h
new file mode 100644 (file)
index 0000000..e8c52c8
--- /dev/null
+++ b/kernel/drivers/char/snsc.h
@@ -0,0 +1,92 @@
+/*
+ * 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_ */