+++ /dev/null
-/*
- * 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.
- *
- * 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.
- */
-
-#ifndef _IR_CORE
-#define _IR_CORE
-
-#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 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
- * @timeout: optional time after which device stops sending data
- * @min_timeout: minimum timeout supported by device
- * @max_timeout: maximum timeout supported by device
- * @rx_resolution : resolution (in ns) of input sampler
- * @tx_resolution: resolution (in ns) of output sampler
- * @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.
- * @s_tx_mask: set transmitter mask (for devices with multiple tx outputs)
- * @s_tx_carrier: set transmit carrier frequency
- * @s_tx_duty_cycle: set transmit duty cycle (0% - 100%)
- * @s_rx_carrier: inform driver about carrier it is expected to handle
- * @tx_ir: transmit IR
- * @s_idle: optional: enable/disable hardware idle mode, upon which,
- device doesn't interrupt host until it sees IR pulses
- * @s_learning_mode: enable wide band receiver used for learning
- * @s_carrier_report: enable carrier reports
- */
-struct ir_dev_props {
- enum rc_driver_type driver_type;
- unsigned long allowed_protos;
- u32 scanmask;
-
- u32 timeout;
- u32 min_timeout;
- u32 max_timeout;
-
- u32 rx_resolution;
- u32 tx_resolution;
-
- void *priv;
- int (*change_protocol)(void *priv, u64 ir_type);
- int (*open)(void *priv);
- void (*close)(void *priv);
- int (*s_tx_mask)(void *priv, u32 mask);
- int (*s_tx_carrier)(void *priv, u32 carrier);
- int (*s_tx_duty_cycle)(void *priv, u32 duty_cycle);
- int (*s_rx_carrier_range)(void *priv, u32 min, u32 max);
- int (*tx_ir)(void *priv, int *txbuf, u32 n);
- void (*s_idle)(void *priv, bool enable);
- int (*s_learning_mode)(void *priv, int enable);
- int (*s_carrier_report) (void *priv, int enable);
-};
-
-struct ir_input_dev {
- 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 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 */
- bool idle;
-
- /* 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)
-
-/* From ir-keytable.c */
-int __ir_input_register(struct input_dev *dev,
- const struct ir_scancode_table *ir_codes,
- struct ir_dev_props *props,
- const char *driver_name);
-
-static inline int ir_input_register(struct input_dev *dev,
- const char *map_name,
- struct ir_dev_props *props,
- const char *driver_name) {
- struct ir_scancode_table *ir_codes;
- struct ir_input_dev *ir_dev;
- int rc;
-
- if (!map_name)
- return -EINVAL;
-
- ir_codes = get_rc_map(map_name);
- if (!ir_codes) {
- ir_codes = get_rc_map(RC_MAP_EMPTY);
-
- 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;
-}
-
-void ir_input_unregister(struct input_dev *input_dev);
-
-void ir_repeat(struct input_dev *dev);
-void ir_keydown(struct input_dev *dev, int scancode, u8 toggle);
-void ir_keyup(struct ir_input_dev *ir);
-u32 ir_g_keycode_from_table(struct input_dev *input_dev, u32 scancode);
-
-/* From ir-raw-event.c */
-
-struct ir_raw_event {
- union {
- u32 duration;
-
- struct {
- u32 carrier;
- u8 duty_cycle;
- };
- };
-
- unsigned pulse:1;
- unsigned reset:1;
- unsigned timeout:1;
- unsigned carrier_report:1;
-};
-
-#define DEFINE_IR_RAW_EVENT(event) \
- struct ir_raw_event event = { \
- { .duration = 0 } , \
- .pulse = 0, \
- .reset = 0, \
- .timeout = 0, \
- .carrier_report = 0 }
-
-static inline void init_ir_raw_event(struct ir_raw_event *ev)
-{
- memset(ev, 0, sizeof(*ev));
-}
-
-#define IR_MAX_DURATION 0xFFFFFFFF /* a bit more than 4 seconds */
-
-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);
-int ir_raw_event_store_with_filter(struct input_dev *input_dev,
- struct ir_raw_event *ev);
-void ir_raw_event_set_idle(struct input_dev *input_dev, bool idle);
-
-static inline void ir_raw_event_reset(struct input_dev *input_dev)
-{
- DEFINE_IR_RAW_EVENT(ev);
- ev.reset = true;
-
- ir_raw_event_store(input_dev, &ev);
- ir_raw_event_handle(input_dev);
-}
-
-#endif /* _IR_CORE */
projects / mv-sheeva.git / blobdiff