| /* |
| * |
| * 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 |
| */ |
| |
| #ifndef _IR_COMMON |
| #define _IR_COMMON |
| |
| #include <linux/input.h> |
| #include <linux/workqueue.h> |
| #include <linux/interrupt.h> |
| #include <media/ir-core.h> |
| |
| #define RC5_START(x) (((x)>>12)&3) |
| #define RC5_TOGGLE(x) (((x)>>11)&1) |
| #define RC5_ADDR(x) (((x)>>6)&31) |
| #define RC5_INSTR(x) ((x)&63) |
| |
| struct ir_input_state { |
| /* configuration */ |
| u64 ir_type; |
| |
| /* key info */ |
| u32 ir_key; /* ir scancode */ |
| u32 keycode; /* linux key code */ |
| int keypressed; /* current state */ |
| }; |
| |
| /* this was saa7134_ir and bttv_ir, moved here for |
| * rc5 decoding. */ |
| struct card_ir { |
| struct input_dev *dev; |
| struct ir_input_state ir; |
| char name[32]; |
| char phys[32]; |
| int users; |
| |
| u32 running:1; |
| struct ir_dev_props props; |
| |
| /* Usual gpio signalling */ |
| |
| u32 mask_keycode; |
| u32 mask_keydown; |
| u32 mask_keyup; |
| u32 polling; |
| u32 last_gpio; |
| int shift_by; |
| int start; // What should RC5_START() be |
| int addr; // What RC5_ADDR() should be. |
| int rc5_key_timeout; |
| int rc5_remote_gap; |
| struct work_struct work; |
| struct timer_list timer; |
| |
| /* RC5 gpio */ |
| u32 rc5_gpio; |
| struct timer_list timer_end; /* timer_end for code completion */ |
| struct timer_list timer_keyup; /* timer_end for key release */ |
| u32 last_rc5; /* last good rc5 code */ |
| u32 last_bit; /* last raw bit seen */ |
| u32 code; /* raw code under construction */ |
| struct timeval base_time; /* time of last seen code */ |
| int active; /* building raw code */ |
| |
| /* NEC decoding */ |
| u32 nec_gpio; |
| struct tasklet_struct tlet; |
| |
| /* IR core raw decoding */ |
| u32 raw_decode; |
| }; |
| |
| /* Routines from ir-functions.c */ |
| |
| int ir_input_init(struct input_dev *dev, struct ir_input_state *ir, |
| const u64 ir_type); |
| 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_extract_bits(u32 data, u32 mask); |
| u32 ir_rc5_decode(unsigned int code); |
| |
| void ir_rc5_timer_end(unsigned long data); |
| void ir_rc5_timer_keyup(unsigned long data); |
| |
| #endif |