diff options
Diffstat (limited to 'include/media/ir-common.h')
| -rw-r--r-- | include/media/ir-common.h | 67 |
1 files changed, 67 insertions, 0 deletions
diff --git a/include/media/ir-common.h b/include/media/ir-common.h new file mode 100644 index 000000000000..62c963a52d86 --- /dev/null +++ b/include/media/ir-common.h @@ -0,0 +1,67 @@ +/* + * $Id: ir-common.h,v 1.8 2005/02/22 12:28:40 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/version.h> +#include <linux/input.h> + + +#define IR_TYPE_RC5 1 +#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]; + +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); + +/* + * Local variables: + * c-basic-offset: 8 + * End: + */ |