2 * $Id: ir-common.c,v 1.5 2004/11/07 13:17:15 kraxel Exp $
4 * some common structs and functions to handle infrared remotes via
7 * (c) 2003 Gerd Knorr <kraxel@bytesex.org> [SuSE Labs]
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation; either version 2 of the License, or
12 * (at your option) any later version.
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
24 #include <linux/module.h>
26 #include <media/ir-common.h>
28 /* -------------------------------------------------------------------------- */
30 MODULE_AUTHOR("Gerd Knorr <kraxel@bytesex.org> [SuSE Labs]");
31 MODULE_LICENSE("GPL");
33 static int repeat = 1;
34 module_param(repeat, int, 0444);
35 MODULE_PARM_DESC(repeat,"auto-repeat for IR keys (default: on)");
37 static int debug = 0; /* debug level (0,1,2) */
38 module_param(debug, int, 0644);
40 #define dprintk(level, fmt, arg...) if (debug >= level) \
41 printk(KERN_DEBUG fmt , ## arg)
43 /* -------------------------------------------------------------------------- */
45 /* generic RC5 keytable */
46 /* see http://users.pandora.be/nenya/electronics/rc5/codes00.htm */
47 IR_KEYTAB_TYPE ir_codes_rc5_tv[IR_KEYTAB_SIZE] = {
48 [ 0x00 ] = KEY_KP0, // 0
49 [ 0x01 ] = KEY_KP1, // 1
50 [ 0x02 ] = KEY_KP2, // 2
51 [ 0x03 ] = KEY_KP3, // 3
52 [ 0x04 ] = KEY_KP4, // 4
53 [ 0x05 ] = KEY_KP5, // 5
54 [ 0x06 ] = KEY_KP6, // 6
55 [ 0x07 ] = KEY_KP7, // 7
56 [ 0x08 ] = KEY_KP8, // 8
57 [ 0x09 ] = KEY_KP9, // 9
59 [ 0x0b ] = KEY_CHANNEL, // channel / program (japan: 11)
60 [ 0x0c ] = KEY_POWER, // standby
61 [ 0x0d ] = KEY_MUTE, // mute / demute
62 [ 0x0f ] = KEY_TV, // display
63 [ 0x10 ] = KEY_VOLUMEUP, // volume +
64 [ 0x11 ] = KEY_VOLUMEDOWN, // volume -
65 [ 0x12 ] = KEY_BRIGHTNESSUP, // brightness +
66 [ 0x13 ] = KEY_BRIGHTNESSDOWN, // brightness -
67 [ 0x1e ] = KEY_SEARCH, // search +
68 [ 0x20 ] = KEY_CHANNELUP, // channel / program +
69 [ 0x21 ] = KEY_CHANNELDOWN, // channel / program -
70 [ 0x22 ] = KEY_CHANNEL, // alt / channel
71 [ 0x23 ] = KEY_LANGUAGE, // 1st / 2nd language
72 [ 0x26 ] = KEY_SLEEP, // sleeptimer
73 [ 0x2e ] = KEY_MENU, // 2nd controls (USA: menu)
74 [ 0x30 ] = KEY_PAUSE, // pause
75 [ 0x32 ] = KEY_REWIND, // rewind
76 [ 0x33 ] = KEY_GOTO, // go to
77 [ 0x35 ] = KEY_PLAY, // play
78 [ 0x36 ] = KEY_STOP, // stop
79 [ 0x37 ] = KEY_RECORD, // recording
80 [ 0x3c ] = KEY_TEXT, // teletext submode (Japan: 12)
81 [ 0x3d ] = KEY_SUSPEND, // system standby
84 [ 0x0a ] = KEY_RESERVED, // 1/2/3 digits (japan: 10)
85 [ 0x0e ] = KEY_RESERVED, // P.P. (personal preference)
86 [ 0x14 ] = KEY_RESERVED, // colour saturation +
87 [ 0x15 ] = KEY_RESERVED, // colour saturation -
88 [ 0x16 ] = KEY_RESERVED, // bass +
89 [ 0x17 ] = KEY_RESERVED, // bass -
90 [ 0x18 ] = KEY_RESERVED, // treble +
91 [ 0x19 ] = KEY_RESERVED, // treble -
92 [ 0x1a ] = KEY_RESERVED, // balance right
93 [ 0x1b ] = KEY_RESERVED, // balance left
94 [ 0x1c ] = KEY_RESERVED, // contrast +
95 [ 0x1d ] = KEY_RESERVED, // contrast -
96 [ 0x1f ] = KEY_RESERVED, // tint/hue +
97 [ 0x24 ] = KEY_RESERVED, // spacial stereo on/off
98 [ 0x25 ] = KEY_RESERVED, // mono / stereo (USA)
99 [ 0x27 ] = KEY_RESERVED, // tint / hue -
100 [ 0x28 ] = KEY_RESERVED, // RF switch/PIP select
101 [ 0x29 ] = KEY_RESERVED, // vote
102 [ 0x2a ] = KEY_RESERVED, // timed page/channel clck
103 [ 0x2b ] = KEY_RESERVED, // increment (USA)
104 [ 0x2c ] = KEY_RESERVED, // decrement (USA)
105 [ 0x2d ] = KEY_RESERVED, //
106 [ 0x2f ] = KEY_RESERVED, // PIP shift
107 [ 0x31 ] = KEY_RESERVED, // erase
108 [ 0x34 ] = KEY_RESERVED, // wind
109 [ 0x38 ] = KEY_RESERVED, // external 1
110 [ 0x39 ] = KEY_RESERVED, // external 2
111 [ 0x3a ] = KEY_RESERVED, // PIP display mode
112 [ 0x3b ] = KEY_RESERVED, // view data mode / advance
113 [ 0x3e ] = KEY_RESERVED, // crispener on/off
114 [ 0x3f ] = KEY_RESERVED, // system select
117 EXPORT_SYMBOL_GPL(ir_codes_rc5_tv);
119 /* empty keytable, can be used as placeholder for not-yet created keytables */
120 IR_KEYTAB_TYPE ir_codes_empty[IR_KEYTAB_SIZE] = {
123 EXPORT_SYMBOL_GPL(ir_codes_empty);
125 /* -------------------------------------------------------------------------- */
127 static void ir_input_key_event(struct input_dev *dev, struct ir_input_state *ir)
129 if (KEY_RESERVED == ir->keycode) {
130 printk(KERN_INFO "%s: unknown key: key=0x%02x raw=0x%02x down=%d\n",
131 dev->name,ir->ir_key,ir->ir_raw,ir->keypressed);
134 dprintk(1,"%s: key event code=%d down=%d\n",
135 dev->name,ir->keycode,ir->keypressed);
136 input_report_key(dev,ir->keycode,ir->keypressed);
140 /* -------------------------------------------------------------------------- */
142 void ir_input_init(struct input_dev *dev, struct ir_input_state *ir,
143 int ir_type, IR_KEYTAB_TYPE *ir_codes)
147 ir->ir_type = ir_type;
149 memcpy(ir->ir_codes, ir_codes, sizeof(ir->ir_codes));
152 dev->keycode = ir->ir_codes;
153 dev->keycodesize = sizeof(IR_KEYTAB_TYPE);
154 dev->keycodemax = IR_KEYTAB_SIZE;
155 for (i = 0; i < IR_KEYTAB_SIZE; i++)
156 set_bit(ir->ir_codes[i], dev->keybit);
157 clear_bit(0, dev->keybit);
159 set_bit(EV_KEY, dev->evbit);
161 set_bit(EV_REP, dev->evbit);
164 void ir_input_nokey(struct input_dev *dev, struct ir_input_state *ir)
166 if (ir->keypressed) {
168 ir_input_key_event(dev,ir);
172 void ir_input_keydown(struct input_dev *dev, struct ir_input_state *ir,
173 u32 ir_key, u32 ir_raw)
175 u32 keycode = IR_KEYCODE(ir->ir_codes, ir_key);
177 if (ir->keypressed && ir->keycode != keycode) {
179 ir_input_key_event(dev,ir);
181 if (!ir->keypressed) {
184 ir->keycode = keycode;
186 ir_input_key_event(dev,ir);
189 /* maybe do something like this ??? */
190 input_event(a, EV_IR, ir->ir_type, ir->ir_raw);
194 u32 ir_extract_bits(u32 data, u32 mask)
201 for (mbit = 0; mbit < 32; mbit++) {
202 if (!(mask & ((u32)1 << mbit)))
204 if (data & ((u32)1 << mbit))
205 value |= (1 << vbit);
211 EXPORT_SYMBOL_GPL(ir_input_init);
212 EXPORT_SYMBOL_GPL(ir_input_nokey);
213 EXPORT_SYMBOL_GPL(ir_input_keydown);
214 EXPORT_SYMBOL_GPL(ir_extract_bits);