/* * * 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/input.h> #define IR_TYPE_RC5 1 #define IR_TYPE_PD 2 /* Pulse distance encoded IR */ #define IR_TYPE_OTHER 99 #define IR_KEYTAB_TYPE u32 #define IR_KEYTAB_SIZE 128 // enougth for rc5, probably need more some day ... #define IR_KEYCODE(tab,code) (((unsigned)code < IR_KEYTAB_SIZE) \ ? tab[code] : KEY_RESERVED) struct ir_input_state { /* configuration */ int ir_type; IR_KEYTAB_TYPE ir_codes[IR_KEYTAB_SIZE]; /* key info */ u32 ir_raw; /* raw data */ u32 ir_key; /* ir key code */ u32 keycode; /* linux key code */ int keypressed; /* current state */ }; extern IR_KEYTAB_TYPE ir_codes_rc5_tv[IR_KEYTAB_SIZE]; extern IR_KEYTAB_TYPE ir_codes_winfast[IR_KEYTAB_SIZE]; extern IR_KEYTAB_TYPE ir_codes_empty[IR_KEYTAB_SIZE]; extern IR_KEYTAB_TYPE ir_codes_hauppauge_new[IR_KEYTAB_SIZE]; extern IR_KEYTAB_TYPE ir_codes_pixelview[IR_KEYTAB_SIZE]; void ir_input_init(struct input_dev *dev, struct ir_input_state *ir, int ir_type, IR_KEYTAB_TYPE *ir_codes); void ir_input_nokey(struct input_dev *dev, struct ir_input_state *ir); void ir_input_keydown(struct input_dev *dev, struct ir_input_state *ir, u32 ir_key, u32 ir_raw); u32 ir_extract_bits(u32 data, u32 mask); int ir_dump_samples(u32 *samples, int count); int ir_decode_biphase(u32 *samples, int count, int low, int high); int ir_decode_pulsedistance(u32 *samples, int count, int low, int high); /* * Local variables: * c-basic-offset: 8 * End: */