| /* |
| * $Id: ir-common.c,v 1.6 2004/12/10 12:33:39 kraxel Exp $ |
| * |
| * some common structs and functions to handle infrared remotes via |
| * input layer ... |
| * |
| * (c) 2003 Gerd Knorr <kraxel@bytesex.org> [SuSE Labs] |
| * |
| * 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; either version 2 of the License, or |
| * (at your option) any later version. |
| * |
| * 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. |
| * |
| * You should have received a copy of the GNU General Public License |
| * along with this program; if not, write to the Free Software |
| * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| */ |
| |
| #include <linux/module.h> |
| #include <linux/moduleparam.h> |
| |
| #include <media/ir-common.h> |
| |
| /* -------------------------------------------------------------------------- */ |
| |
| MODULE_AUTHOR("Gerd Knorr <kraxel@bytesex.org> [SuSE Labs]"); |
| MODULE_LICENSE("GPL"); |
| |
| static int repeat = 1; |
| module_param(repeat, int, 0444); |
| MODULE_PARM_DESC(repeat,"auto-repeat for IR keys (default: on)"); |
| |
| static int debug = 0; /* debug level (0,1,2) */ |
| module_param(debug, int, 0644); |
| |
| #define dprintk(level, fmt, arg...) if (debug >= level) \ |
| printk(KERN_DEBUG fmt , ## arg) |
| |
| /* -------------------------------------------------------------------------- */ |
| |
| /* generic RC5 keytable */ |
| /* see http://users.pandora.be/nenya/electronics/rc5/codes00.htm */ |
| IR_KEYTAB_TYPE ir_codes_rc5_tv[IR_KEYTAB_SIZE] = { |
| [ 0x00 ] = KEY_KP0, // 0 |
| [ 0x01 ] = KEY_KP1, // 1 |
| [ 0x02 ] = KEY_KP2, // 2 |
| [ 0x03 ] = KEY_KP3, // 3 |
| [ 0x04 ] = KEY_KP4, // 4 |
| [ 0x05 ] = KEY_KP5, // 5 |
| [ 0x06 ] = KEY_KP6, // 6 |
| [ 0x07 ] = KEY_KP7, // 7 |
| [ 0x08 ] = KEY_KP8, // 8 |
| [ 0x09 ] = KEY_KP9, // 9 |
| |
| [ 0x0b ] = KEY_CHANNEL, // channel / program (japan: 11) |
| [ 0x0c ] = KEY_POWER, // standby |
| [ 0x0d ] = KEY_MUTE, // mute / demute |
| [ 0x0f ] = KEY_TV, // display |
| [ 0x10 ] = KEY_VOLUMEUP, // volume + |
| [ 0x11 ] = KEY_VOLUMEDOWN, // volume - |
| [ 0x12 ] = KEY_BRIGHTNESSUP, // brightness + |
| [ 0x13 ] = KEY_BRIGHTNESSDOWN, // brightness - |
| [ 0x1e ] = KEY_SEARCH, // search + |
| [ 0x20 ] = KEY_CHANNELUP, // channel / program + |
| [ 0x21 ] = KEY_CHANNELDOWN, // channel / program - |
| [ 0x22 ] = KEY_CHANNEL, // alt / channel |
| [ 0x23 ] = KEY_LANGUAGE, // 1st / 2nd language |
| [ 0x26 ] = KEY_SLEEP, // sleeptimer |
| [ 0x2e ] = KEY_MENU, // 2nd controls (USA: menu) |
| [ 0x30 ] = KEY_PAUSE, // pause |
| [ 0x32 ] = KEY_REWIND, // rewind |
| [ 0x33 ] = KEY_GOTO, // go to |
| [ 0x35 ] = KEY_PLAY, // play |
| [ 0x36 ] = KEY_STOP, // stop |
| [ 0x37 ] = KEY_RECORD, // recording |
| [ 0x3c ] = KEY_TEXT, // teletext submode (Japan: 12) |
| [ 0x3d ] = KEY_SUSPEND, // system standby |
| |
| #if 0 /* FIXME */ |
| [ 0x0a ] = KEY_RESERVED, // 1/2/3 digits (japan: 10) |
| [ 0x0e ] = KEY_RESERVED, // P.P. (personal preference) |
| [ 0x14 ] = KEY_RESERVED, // colour saturation + |
| [ 0x15 ] = KEY_RESERVED, // colour saturation - |
| [ 0x16 ] = KEY_RESERVED, // bass + |
| [ 0x17 ] = KEY_RESERVED, // bass - |
| [ 0x18 ] = KEY_RESERVED, // treble + |
| [ 0x19 ] = KEY_RESERVED, // treble - |
| [ 0x1a ] = KEY_RESERVED, // balance right |
| [ 0x1b ] = KEY_RESERVED, // balance left |
| [ 0x1c ] = KEY_RESERVED, // contrast + |
| [ 0x1d ] = KEY_RESERVED, // contrast - |
| [ 0x1f ] = KEY_RESERVED, // tint/hue + |
| [ 0x24 ] = KEY_RESERVED, // spacial stereo on/off |
| [ 0x25 ] = KEY_RESERVED, // mono / stereo (USA) |
| [ 0x27 ] = KEY_RESERVED, // tint / hue - |
| [ 0x28 ] = KEY_RESERVED, // RF switch/PIP select |
| [ 0x29 ] = KEY_RESERVED, // vote |
| [ 0x2a ] = KEY_RESERVED, // timed page/channel clck |
| [ 0x2b ] = KEY_RESERVED, // increment (USA) |
| [ 0x2c ] = KEY_RESERVED, // decrement (USA) |
| [ 0x2d ] = KEY_RESERVED, // |
| [ 0x2f ] = KEY_RESERVED, // PIP shift |
| [ 0x31 ] = KEY_RESERVED, // erase |
| [ 0x34 ] = KEY_RESERVED, // wind |
| [ 0x38 ] = KEY_RESERVED, // external 1 |
| [ 0x39 ] = KEY_RESERVED, // external 2 |
| [ 0x3a ] = KEY_RESERVED, // PIP display mode |
| [ 0x3b ] = KEY_RESERVED, // view data mode / advance |
| [ 0x3e ] = KEY_RESERVED, // crispener on/off |
| [ 0x3f ] = KEY_RESERVED, // system select |
| #endif |
| }; |
| EXPORT_SYMBOL_GPL(ir_codes_rc5_tv); |
| |
| /* empty keytable, can be used as placeholder for not-yet created keytables */ |
| IR_KEYTAB_TYPE ir_codes_empty[IR_KEYTAB_SIZE] = { |
| [ 42 ] = KEY_COFFEE, |
| }; |
| EXPORT_SYMBOL_GPL(ir_codes_empty); |
| |
| /* -------------------------------------------------------------------------- */ |
| |
| static void ir_input_key_event(struct input_dev *dev, struct ir_input_state *ir) |
| { |
| if (KEY_RESERVED == ir->keycode) { |
| printk(KERN_INFO "%s: unknown key: key=0x%02x raw=0x%02x down=%d\n", |
| dev->name,ir->ir_key,ir->ir_raw,ir->keypressed); |
| return; |
| } |
| dprintk(1,"%s: key event code=%d down=%d\n", |
| dev->name,ir->keycode,ir->keypressed); |
| input_report_key(dev,ir->keycode,ir->keypressed); |
| input_sync(dev); |
| } |
| |
| /* -------------------------------------------------------------------------- */ |
| |
| void ir_input_init(struct input_dev *dev, struct ir_input_state *ir, |
| int ir_type, IR_KEYTAB_TYPE *ir_codes) |
| { |
| int i; |
| |
| ir->ir_type = ir_type; |
| if (ir_codes) |
| memcpy(ir->ir_codes, ir_codes, sizeof(ir->ir_codes)); |
| |
| init_input_dev(dev); |
| dev->keycode = ir->ir_codes; |
| dev->keycodesize = sizeof(IR_KEYTAB_TYPE); |
| dev->keycodemax = IR_KEYTAB_SIZE; |
| for (i = 0; i < IR_KEYTAB_SIZE; i++) |
| set_bit(ir->ir_codes[i], dev->keybit); |
| clear_bit(0, dev->keybit); |
| |
| set_bit(EV_KEY, dev->evbit); |
| if (repeat) |
| set_bit(EV_REP, dev->evbit); |
| } |
| |
| void ir_input_nokey(struct input_dev *dev, struct ir_input_state *ir) |
| { |
| if (ir->keypressed) { |
| ir->keypressed = 0; |
| ir_input_key_event(dev,ir); |
| } |
| } |
| |
| void ir_input_keydown(struct input_dev *dev, struct ir_input_state *ir, |
| u32 ir_key, u32 ir_raw) |
| { |
| u32 keycode = IR_KEYCODE(ir->ir_codes, ir_key); |
| |
| if (ir->keypressed && ir->keycode != keycode) { |
| ir->keypressed = 0; |
| ir_input_key_event(dev,ir); |
| } |
| if (!ir->keypressed) { |
| ir->ir_key = ir_key; |
| ir->ir_raw = ir_raw; |
| ir->keycode = keycode; |
| ir->keypressed = 1; |
| ir_input_key_event(dev,ir); |
| } |
| #if 0 |
| /* maybe do something like this ??? */ |
| input_event(a, EV_IR, ir->ir_type, ir->ir_raw); |
| #endif |
| } |
| |
| u32 ir_extract_bits(u32 data, u32 mask) |
| { |
| int mbit, vbit; |
| u32 value; |
| |
| value = 0; |
| vbit = 0; |
| for (mbit = 0; mbit < 32; mbit++) { |
| if (!(mask & ((u32)1 << mbit))) |
| continue; |
| if (data & ((u32)1 << mbit)) |
| value |= (1 << vbit); |
| vbit++; |
| } |
| return value; |
| } |
| |
| EXPORT_SYMBOL_GPL(ir_input_init); |
| EXPORT_SYMBOL_GPL(ir_input_nokey); |
| EXPORT_SYMBOL_GPL(ir_input_keydown); |
| EXPORT_SYMBOL_GPL(ir_extract_bits); |
| |
| /* |
| * Local variables: |
| * c-basic-offset: 8 |
| * End: |
| */ |
