/*
* Remote Controller core header
*
+ * Copyright (C) 2009-2010 by Mauro Carvalho Chehab <mchehab@redhat.com>
+ *
* 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 version 2 of the License.
#ifndef _IR_CORE
#define _IR_CORE
-#include <linux/input.h>
#include <linux/spinlock.h>
+#include <linux/kfifo.h>
+#include <linux/time.h>
+#include <linux/timer.h>
+#include <media/rc-map.h>
extern int ir_core_debug;
#define IR_dprintk(level, fmt, arg...) if (ir_core_debug >= level) \
printk(KERN_DEBUG "%s: " fmt , __func__, ## arg)
-enum ir_type {
- IR_TYPE_UNKNOWN = 0,
- IR_TYPE_RC5 = 1L << 0, /* Philips RC5 protocol */
- IR_TYPE_PD = 1L << 1, /* Pulse distance encoded IR */
- IR_TYPE_NEC = 1L << 2,
- IR_TYPE_OTHER = 1L << 63,
-};
-
-struct ir_scancode {
- u16 scancode;
- u32 keycode;
-};
-
-struct ir_scancode_table {
- struct ir_scancode *scan;
- int size;
- enum ir_type ir_type;
- spinlock_t lock;
+enum rc_driver_type {
+ RC_DRIVER_SCANCODE = 0, /* Driver or hardware generates a scancode */
+ RC_DRIVER_IR_RAW, /* Needs a Infra-Red pulse/space decoder */
};
+/**
+ * struct ir_dev_props - Allow caller drivers to set special properties
+ * @driver_type: specifies if the driver or hardware have already a decoder,
+ * or if it needs to use the IR raw event decoders to produce a scancode
+ * @allowed_protos: bitmask with the supported IR_TYPE_* protocols
+ * @scanmask: some hardware decoders are not capable of providing the full
+ * scancode to the application. As this is a hardware limit, we can't do
+ * anything with it. Yet, as the same keycode table can be used with other
+ * devices, a mask is provided to allow its usage. Drivers should generally
+ * leave this field in blank
+ * @priv: driver-specific data, to be used on the callbacks
+ * @change_protocol: allow changing the protocol used on hardware decoders
+ * @open: callback to allow drivers to enable polling/irq when IR input device
+ * is opened.
+ * @close: callback to allow drivers to disable polling/irq when IR input device
+ * is opened.
+ */
struct ir_dev_props {
- unsigned long allowed_protos;
- void *priv;
- int (*change_protocol)(void *priv, enum ir_type ir_type);
+ enum rc_driver_type driver_type;
+ unsigned long allowed_protos;
+ u32 scanmask;
+ void *priv;
+ int (*change_protocol)(void *priv, u64 ir_type);
+ int (*open)(void *priv);
+ void (*close)(void *priv);
};
-
struct ir_input_dev {
- struct input_dev *dev; /* Input device*/
+ struct device dev; /* device */
+ char *driver_name; /* Name of the driver module */
struct ir_scancode_table rc_tab; /* scan/key table */
unsigned long devno; /* device number */
- struct attribute_group attr; /* IR attributes */
- struct device *class_dev; /* virtual class dev */
const struct ir_dev_props *props; /* Device properties */
+ struct ir_raw_event_ctrl *raw; /* for raw pulse/space events */
+ struct input_dev *input_dev; /* the input device associated with this device */
+
+ /* key info - needed by IR keycode handlers */
+ spinlock_t keylock; /* protects the below members */
+ bool keypressed; /* current state */
+ unsigned long keyup_jiffies; /* when should the current keypress be released? */
+ struct timer_list timer_keyup; /* timer for releasing a keypress */
+ u32 last_keycode; /* keycode of last command */
+ u32 last_scancode; /* scancode of last command */
+ u8 last_toggle; /* toggle of last command */
+};
+
+enum raw_event_type {
+ IR_SPACE = (1 << 0),
+ IR_PULSE = (1 << 1),
+ IR_START_EVENT = (1 << 2),
+ IR_STOP_EVENT = (1 << 3),
};
+
#define to_ir_input_dev(_attr) container_of(_attr, struct ir_input_dev, attr)
-/* Routines from ir-keytable.c */
+/* From ir-keytable.c */
+int __ir_input_register(struct input_dev *dev,
+ const struct ir_scancode_table *ir_codes,
+ const struct ir_dev_props *props,
+ const char *driver_name);
-u32 ir_g_keycode_from_table(struct input_dev *input_dev,
- u32 scancode);
+static inline int ir_input_register(struct input_dev *dev,
+ const char *map_name,
+ const struct ir_dev_props *props,
+ const char *driver_name) {
+ struct ir_scancode_table *ir_codes;
+ struct ir_input_dev *ir_dev;
+ int rc;
-int ir_set_keycode_table(struct input_dev *input_dev,
- struct ir_scancode_table *rc_tab);
+ if (!map_name)
+ return -EINVAL;
+
+ ir_codes = get_rc_map(map_name);
+ if (!ir_codes)
+ return -EINVAL;
+
+ rc = __ir_input_register(dev, ir_codes, props, driver_name);
+ if (rc < 0)
+ return -EINVAL;
+
+ ir_dev = input_get_drvdata(dev);
+
+ if (!rc && ir_dev->props && ir_dev->props->change_protocol)
+ rc = ir_dev->props->change_protocol(ir_dev->props->priv,
+ ir_codes->ir_type);
+
+ return rc;
+}
-int ir_roundup_tablesize(int n_elems);
-int ir_input_register(struct input_dev *dev,
- const struct ir_scancode_table *ir_codes,
- const struct ir_dev_props *props);
void ir_input_unregister(struct input_dev *input_dev);
-/* Routines from ir-sysfs.c */
+void ir_repeat(struct input_dev *dev);
+void ir_keydown(struct input_dev *dev, int scancode, u8 toggle);
+u32 ir_g_keycode_from_table(struct input_dev *input_dev, u32 scancode);
+
+/* From ir-raw-event.c */
+
+struct ir_raw_event {
+ unsigned pulse:1;
+ unsigned duration:31;
+};
+
+#define IR_MAX_DURATION 0x7FFFFFFF /* a bit more than 2 seconds */
-int ir_register_class(struct input_dev *input_dev);
-void ir_unregister_class(struct input_dev *input_dev);
+void ir_raw_event_handle(struct input_dev *input_dev);
+int ir_raw_event_store(struct input_dev *input_dev, struct ir_raw_event *ev);
+int ir_raw_event_store_edge(struct input_dev *input_dev, enum raw_event_type type);
+static inline void ir_raw_event_reset(struct input_dev *input_dev)
+{
+ struct ir_raw_event ev = { .pulse = false, .duration = 0 };
+ ir_raw_event_store(input_dev, &ev);
+ ir_raw_event_handle(input_dev);
+}
-#endif
+#endif /* _IR_CORE */
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff