Add the rt linux 4.1.3-rt3 as base

[kvmfornfv.git] / kernel / include / linux / serio.h

diff --git a/kernel/include/linux/serio.h b/kernel/include/linux/serio.h
new file mode 100644 (file)
index 0000000..9f779c7
--- /dev/null
+++ b/kernel/include/linux/serio.h
@@ -0,0 +1,150 @@
+/*
+ * Copyright (C) 1999-2002 Vojtech Pavlik
+*
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published by
+ * the Free Software Foundation.
+ */
+#ifndef _SERIO_H
+#define _SERIO_H
+
+
+#include <linux/types.h>
+#include <linux/interrupt.h>
+#include <linux/list.h>
+#include <linux/spinlock.h>
+#include <linux/mutex.h>
+#include <linux/device.h>
+#include <linux/mod_devicetable.h>
+#include <uapi/linux/serio.h>
+
+struct serio {
+       void *port_data;
+
+       char name[32];
+       char phys[32];
+       char firmware_id[128];
+
+       bool manual_bind;
+
+       struct serio_device_id id;
+
+       spinlock_t lock;                /* protects critical sections from port's interrupt handler */
+
+       int (*write)(struct serio *, unsigned char);
+       int (*open)(struct serio *);
+       void (*close)(struct serio *);
+       int (*start)(struct serio *);
+       void (*stop)(struct serio *);
+
+       struct serio *parent;
+       struct list_head child_node;    /* Entry in parent->children list */
+       struct list_head children;
+       unsigned int depth;             /* level of nesting in serio hierarchy */
+
+       struct serio_driver *drv;       /* accessed from interrupt, must be protected by serio->lock and serio->sem */
+       struct mutex drv_mutex;         /* protects serio->drv so attributes can pin driver */
+
+       struct device dev;
+
+       struct list_head node;
+};
+#define to_serio_port(d)       container_of(d, struct serio, dev)
+
+struct serio_driver {
+       const char *description;
+
+       const struct serio_device_id *id_table;
+       bool manual_bind;
+
+       void (*write_wakeup)(struct serio *);
+       irqreturn_t (*interrupt)(struct serio *, unsigned char, unsigned int);
+       int  (*connect)(struct serio *, struct serio_driver *drv);
+       int  (*reconnect)(struct serio *);
+       void (*disconnect)(struct serio *);
+       void (*cleanup)(struct serio *);
+
+       struct device_driver driver;
+};
+#define to_serio_driver(d)     container_of(d, struct serio_driver, driver)
+
+int serio_open(struct serio *serio, struct serio_driver *drv);
+void serio_close(struct serio *serio);
+void serio_rescan(struct serio *serio);
+void serio_reconnect(struct serio *serio);
+irqreturn_t serio_interrupt(struct serio *serio, unsigned char data, unsigned int flags);
+
+void __serio_register_port(struct serio *serio, struct module *owner);
+
+/* use a define to avoid include chaining to get THIS_MODULE */
+#define serio_register_port(serio) \
+       __serio_register_port(serio, THIS_MODULE)
+
+void serio_unregister_port(struct serio *serio);
+void serio_unregister_child_port(struct serio *serio);
+
+int __must_check __serio_register_driver(struct serio_driver *drv,
+                               struct module *owner, const char *mod_name);
+
+/* use a define to avoid include chaining to get THIS_MODULE & friends */
+#define serio_register_driver(drv) \
+       __serio_register_driver(drv, THIS_MODULE, KBUILD_MODNAME)
+
+void serio_unregister_driver(struct serio_driver *drv);
+
+/**
+ * module_serio_driver() - Helper macro for registering a serio driver
+ * @__serio_driver: serio_driver struct
+ *
+ * Helper macro for serio drivers which do not do anything special in
+ * module init/exit. This eliminates a lot of boilerplate. Each module
+ * may only use this macro once, and calling it replaces module_init()
+ * and module_exit().
+ */
+#define module_serio_driver(__serio_driver) \
+       module_driver(__serio_driver, serio_register_driver, \
+                      serio_unregister_driver)
+
+static inline int serio_write(struct serio *serio, unsigned char data)
+{
+       if (serio->write)
+               return serio->write(serio, data);
+       else
+               return -1;
+}
+
+static inline void serio_drv_write_wakeup(struct serio *serio)
+{
+       if (serio->drv && serio->drv->write_wakeup)
+               serio->drv->write_wakeup(serio);
+}
+
+/*
+ * Use the following functions to manipulate serio's per-port
+ * driver-specific data.
+ */
+static inline void *serio_get_drvdata(struct serio *serio)
+{
+       return dev_get_drvdata(&serio->dev);
+}
+
+static inline void serio_set_drvdata(struct serio *serio, void *data)
+{
+       dev_set_drvdata(&serio->dev, data);
+}
+
+/*
+ * Use the following functions to protect critical sections in
+ * driver code from port's interrupt handler
+ */
+static inline void serio_pause_rx(struct serio *serio)
+{
+       spin_lock_irq(&serio->lock);
+}
+
+static inline void serio_continue_rx(struct serio *serio)
+{
+       spin_unlock_irq(&serio->lock);
+}
+
+#endif