1 files changed, 89 insertions, 0 deletions

diff --git a/include/linux/pps_kernel.h b/include/linux/pps_kernel.h
new file mode 100644
index 000000000000..e0a193f830ef
--- /dev/null
+++ b/include/linux/pps_kernel.h
@@ -0,0 +1,89 @@
+/*
+ * PPS API kernel header
+ *
+ * Copyright (C) 2009   Rodolfo Giometti <giometti@linux.it>
+ *
+ *   This program is free software; you can redistribute it and/or modify
+ *   it under the terms of the GNU General Public License as published by
+ *   the Free Software Foundation; either version 2 of the License, or
+ *   (at your option) any later version.
+ *
+ *   This program is distributed in the hope that it will be useful,
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *   GNU General Public License for more details.
+ *
+ *   You should have received a copy of the GNU General Public License
+ *   along with this program; if not, write to the Free Software
+ *   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include <linux/pps.h>
+
+#include <linux/cdev.h>
+#include <linux/device.h>
+#include <linux/time.h>
+
+/*
+ * Global defines
+ */
+
+/* The specific PPS source info */
+struct pps_source_info {
+        char name[PPS_MAX_NAME_LEN];            /* simbolic name */
+        char path[PPS_MAX_NAME_LEN];            /* path of connected device */
+        int mode;                               /* PPS's allowed mode */
+
+        void (*echo)(int source, int event, void *data); /* PPS echo function */
+
+        struct module *owner;
+        struct device *dev;
+};
+
+/* The main struct */
+struct pps_device {
+        struct pps_source_info info;            /* PSS source info */
+
+        struct pps_kparams params;              /* PPS's current params */
+
+        __u32 assert_sequence;                  /* PPS' assert event seq # */
+        __u32 clear_sequence;                   /* PPS' clear event seq # */
+        struct pps_ktime assert_tu;
+        struct pps_ktime clear_tu;
+        int current_mode;                       /* PPS mode at event time */
+
+        int go;                                 /* PPS event is arrived? */
+        wait_queue_head_t queue;                /* PPS event queue */
+
+        unsigned int id;                        /* PPS source unique ID */
+        struct cdev cdev;
+        struct device *dev;
+        int devno;
+        struct fasync_struct *async_queue;      /* fasync method */
+        spinlock_t lock;
+
+        atomic_t usage;                         /* usage count */
+};
+
+/*
+ * Global variables
+ */
+
+extern spinlock_t pps_idr_lock;
+extern struct idr pps_idr;
+extern struct timespec pps_irq_ts[];
+
+extern struct device_attribute pps_attrs[];
+
+/*
+ * Exported functions
+ */
+
+struct pps_device *pps_get_source(int source);
+extern void pps_put_source(struct pps_device *pps);
+extern int pps_register_source(struct pps_source_info *info,
+                                int default_params);
+extern void pps_unregister_source(int source);
+extern int pps_register_cdev(struct pps_device *pps);
+extern void pps_unregister_cdev(struct pps_device *pps);
+extern void pps_event(int source, struct pps_ktime *ts, int event, void *data);