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-rw-r--r--include/media/ir-core.h214
1 files changed, 0 insertions, 214 deletions
diff --git a/include/media/ir-core.h b/include/media/ir-core.h
deleted file mode 100644
index 6dc37fae6606..000000000000
--- a/include/media/ir-core.h
+++ /dev/null
@@ -1,214 +0,0 @@
1/*
2 * Remote Controller core header
3 *
4 * Copyright (C) 2009-2010 by Mauro Carvalho Chehab <mchehab@redhat.com>
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation version 2 of the License.
9 *
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
14 */
15
16#ifndef _IR_CORE
17#define _IR_CORE
18
19#include <linux/spinlock.h>
20#include <linux/kfifo.h>
21#include <linux/time.h>
22#include <linux/timer.h>
23#include <media/rc-map.h>
24
25extern int ir_core_debug;
26#define IR_dprintk(level, fmt, arg...) if (ir_core_debug >= level) \
27 printk(KERN_DEBUG "%s: " fmt , __func__, ## arg)
28
29enum rc_driver_type {
30 RC_DRIVER_SCANCODE = 0, /* Driver or hardware generates a scancode */
31 RC_DRIVER_IR_RAW, /* Needs a Infra-Red pulse/space decoder */
32};
33
34/**
35 * struct ir_dev_props - Allow caller drivers to set special properties
36 * @driver_type: specifies if the driver or hardware have already a decoder,
37 * or if it needs to use the IR raw event decoders to produce a scancode
38 * @allowed_protos: bitmask with the supported IR_TYPE_* protocols
39 * @scanmask: some hardware decoders are not capable of providing the full
40 * scancode to the application. As this is a hardware limit, we can't do
41 * anything with it. Yet, as the same keycode table can be used with other
42 * devices, a mask is provided to allow its usage. Drivers should generally
43 * leave this field in blank
44 * @timeout: optional time after which device stops sending data
45 * @min_timeout: minimum timeout supported by device
46 * @max_timeout: maximum timeout supported by device
47 * @rx_resolution : resolution (in ns) of input sampler
48 * @tx_resolution: resolution (in ns) of output sampler
49 * @priv: driver-specific data, to be used on the callbacks
50 * @change_protocol: allow changing the protocol used on hardware decoders
51 * @open: callback to allow drivers to enable polling/irq when IR input device
52 * is opened.
53 * @close: callback to allow drivers to disable polling/irq when IR input device
54 * is opened.
55 * @s_tx_mask: set transmitter mask (for devices with multiple tx outputs)
56 * @s_tx_carrier: set transmit carrier frequency
57 * @s_tx_duty_cycle: set transmit duty cycle (0% - 100%)
58 * @s_rx_carrier: inform driver about carrier it is expected to handle
59 * @tx_ir: transmit IR
60 * @s_idle: optional: enable/disable hardware idle mode, upon which,
61 device doesn't interrupt host until it sees IR pulses
62 * @s_learning_mode: enable wide band receiver used for learning
63 * @s_carrier_report: enable carrier reports
64 */
65struct ir_dev_props {
66 enum rc_driver_type driver_type;
67 unsigned long allowed_protos;
68 u32 scanmask;
69
70 u32 timeout;
71 u32 min_timeout;
72 u32 max_timeout;
73
74 u32 rx_resolution;
75 u32 tx_resolution;
76
77 void *priv;
78 int (*change_protocol)(void *priv, u64 ir_type);
79 int (*open)(void *priv);
80 void (*close)(void *priv);
81 int (*s_tx_mask)(void *priv, u32 mask);
82 int (*s_tx_carrier)(void *priv, u32 carrier);
83 int (*s_tx_duty_cycle)(void *priv, u32 duty_cycle);
84 int (*s_rx_carrier_range)(void *priv, u32 min, u32 max);
85 int (*tx_ir)(void *priv, int *txbuf, u32 n);
86 void (*s_idle)(void *priv, bool enable);
87 int (*s_learning_mode)(void *priv, int enable);
88 int (*s_carrier_report) (void *priv, int enable);
89};
90
91struct ir_input_dev {
92 struct device dev; /* device */
93 char *driver_name; /* Name of the driver module */
94 struct ir_scancode_table rc_tab; /* scan/key table */
95 unsigned long devno; /* device number */
96 struct ir_dev_props *props; /* Device properties */
97 struct ir_raw_event_ctrl *raw; /* for raw pulse/space events */
98 struct input_dev *input_dev; /* the input device associated with this device */
99 bool idle;
100
101 /* key info - needed by IR keycode handlers */
102 spinlock_t keylock; /* protects the below members */
103 bool keypressed; /* current state */
104 unsigned long keyup_jiffies; /* when should the current keypress be released? */
105 struct timer_list timer_keyup; /* timer for releasing a keypress */
106 u32 last_keycode; /* keycode of last command */
107 u32 last_scancode; /* scancode of last command */
108 u8 last_toggle; /* toggle of last command */
109};
110
111enum raw_event_type {
112 IR_SPACE = (1 << 0),
113 IR_PULSE = (1 << 1),
114 IR_START_EVENT = (1 << 2),
115 IR_STOP_EVENT = (1 << 3),
116};
117
118#define to_ir_input_dev(_attr) container_of(_attr, struct ir_input_dev, attr)
119
120/* From ir-keytable.c */
121int __ir_input_register(struct input_dev *dev,
122 const struct ir_scancode_table *ir_codes,
123 struct ir_dev_props *props,
124 const char *driver_name);
125
126static inline int ir_input_register(struct input_dev *dev,
127 const char *map_name,
128 struct ir_dev_props *props,
129 const char *driver_name) {
130 struct ir_scancode_table *ir_codes;
131 struct ir_input_dev *ir_dev;
132 int rc;
133
134 if (!map_name)
135 return -EINVAL;
136
137 ir_codes = get_rc_map(map_name);
138 if (!ir_codes) {
139 ir_codes = get_rc_map(RC_MAP_EMPTY);
140
141 if (!ir_codes)
142 return -EINVAL;
143 }
144
145 rc = __ir_input_register(dev, ir_codes, props, driver_name);
146 if (rc < 0)
147 return -EINVAL;
148
149 ir_dev = input_get_drvdata(dev);
150
151 if (!rc && ir_dev->props && ir_dev->props->change_protocol)
152 rc = ir_dev->props->change_protocol(ir_dev->props->priv,
153 ir_codes->ir_type);
154
155 return rc;
156}
157
158void ir_input_unregister(struct input_dev *input_dev);
159
160void ir_repeat(struct input_dev *dev);
161void ir_keydown(struct input_dev *dev, int scancode, u8 toggle);
162void ir_keyup(struct ir_input_dev *ir);
163u32 ir_g_keycode_from_table(struct input_dev *input_dev, u32 scancode);
164
165/* From ir-raw-event.c */
166
167struct ir_raw_event {
168 union {
169 u32 duration;
170
171 struct {
172 u32 carrier;
173 u8 duty_cycle;
174 };
175 };
176
177 unsigned pulse:1;
178 unsigned reset:1;
179 unsigned timeout:1;
180 unsigned carrier_report:1;
181};
182
183#define DEFINE_IR_RAW_EVENT(event) \
184 struct ir_raw_event event = { \
185 { .duration = 0 } , \
186 .pulse = 0, \
187 .reset = 0, \
188 .timeout = 0, \
189 .carrier_report = 0 }
190
191static inline void init_ir_raw_event(struct ir_raw_event *ev)
192{
193 memset(ev, 0, sizeof(*ev));
194}
195
196#define IR_MAX_DURATION 0xFFFFFFFF /* a bit more than 4 seconds */
197
198void ir_raw_event_handle(struct input_dev *input_dev);
199int ir_raw_event_store(struct input_dev *input_dev, struct ir_raw_event *ev);
200int ir_raw_event_store_edge(struct input_dev *input_dev, enum raw_event_type type);
201int ir_raw_event_store_with_filter(struct input_dev *input_dev,
202 struct ir_raw_event *ev);
203void ir_raw_event_set_idle(struct input_dev *input_dev, bool idle);
204
205static inline void ir_raw_event_reset(struct input_dev *input_dev)
206{
207 DEFINE_IR_RAW_EVENT(ev);
208 ev.reset = true;
209
210 ir_raw_event_store(input_dev, &ev);
211 ir_raw_event_handle(input_dev);
212}
213
214#endif /* _IR_CORE */
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