include/media/ir-common.h

   1 /*
   2  *
   3  * some common structs and functions to handle infrared remotes via
   4  * input layer ...
   5  *
   6  * (c) 2003 Gerd Knorr <kraxel@bytesex.org> [SuSE Labs]
   7  *
   8  *  This program is free software; you can redistribute it and/or modify
   9  *  it under the terms of the GNU General Public License as published by
  10  *  the Free Software Foundation; either version 2 of the License, or
  11  *  (at your option) any later version.
  12  *
  13  *  This program is distributed in the hope that it will be useful,
  14  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16  *  GNU General Public License for more details.
  17  *
  18  *  You should have received a copy of the GNU General Public License
  19  *  along with this program; if not, write to the Free Software
  20  *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  21  */
  22
  23 #ifndef _IR_COMMON
  24 #define _IR_COMMON
  25
  26 #include <linux/input.h>
  27 #include <linux/workqueue.h>
  28
  29 #define IR_TYPE_RC5     1
  30 #define IR_TYPE_PD      2 /* Pulse distance encoded IR */
  31 #define IR_TYPE_OTHER  99
  32
  33 #define IR_KEYTAB_TYPE  u32
  34 #define IR_KEYTAB_SIZE  128  // enougth for rc5, probably need more some day ...
  35
  36 #define IR_KEYCODE(tab,code)    (((unsigned)code < IR_KEYTAB_SIZE) \
  37                                  ? tab[code] : KEY_RESERVED)
  38
  39 #define RC5_START(x)    (((x)>>12)&3)
  40 #define RC5_TOGGLE(x)   (((x)>>11)&1)
  41 #define RC5_ADDR(x)     (((x)>>6)&31)
  42 #define RC5_INSTR(x)    ((x)&63)
  43
  44 struct ir_input_state {
  45         /* configuration */
  46         int                ir_type;
  47         IR_KEYTAB_TYPE     ir_codes[IR_KEYTAB_SIZE];
  48
  49         /* key info */
  50         u32                ir_raw;      /* raw data */
  51         u32                ir_key;      /* ir key code */
  52         u32                keycode;     /* linux key code */
  53         int                keypressed;  /* current state */
  54 };
  55
  56 /* this was saa7134_ir and bttv_ir, moved here for
  57  * rc5 decoding. */
  58 struct card_ir {
  59         struct input_dev        *dev;
  60         struct ir_input_state   ir;
  61         char                    name[32];
  62         char                    phys[32];
  63
  64         /* Usual gpio signalling */
  65
  66         u32                     mask_keycode;
  67         u32                     mask_keydown;
  68         u32                     mask_keyup;
  69         u32                     polling;
  70         u32                     last_gpio;
  71         int                     shift_by;
  72         int                     start; // What should RC5_START() be
  73         int                     addr; // What RC5_ADDR() should be.
  74         int                     rc5_key_timeout;
  75         int                     rc5_remote_gap;
  76         struct work_struct      work;
  77         struct timer_list       timer;
  78
  79         /* RC5 gpio */
  80         u32 rc5_gpio;
  81         struct timer_list timer_end;    /* timer_end for code completion */
  82         struct timer_list timer_keyup;  /* timer_end for key release */
  83         u32 last_rc5;                   /* last good rc5 code */
  84         u32 last_bit;                   /* last raw bit seen */
  85         u32 code;                       /* raw code under construction */
  86         struct timeval base_time;       /* time of last seen code */
  87         int active;                     /* building raw code */
  88 };
  89
  90 void ir_input_init(struct input_dev *dev, struct ir_input_state *ir,
  91                    int ir_type, IR_KEYTAB_TYPE *ir_codes);
  92 void ir_input_nokey(struct input_dev *dev, struct ir_input_state *ir);
  93 void ir_input_keydown(struct input_dev *dev, struct ir_input_state *ir,
  94                       u32 ir_key, u32 ir_raw);
  95 u32  ir_extract_bits(u32 data, u32 mask);
  96 int  ir_dump_samples(u32 *samples, int count);
  97 int  ir_decode_biphase(u32 *samples, int count, int low, int high);
  98 int  ir_decode_pulsedistance(u32 *samples, int count, int low, int high);
  99
 100 u32 ir_rc5_decode(unsigned int code);
 101 void ir_rc5_timer_end(unsigned long data);
 102 void ir_rc5_timer_keyup(unsigned long data);
 103
 104 /* Keymaps to be used by other modules */
 105
 106 extern IR_KEYTAB_TYPE ir_codes_empty[IR_KEYTAB_SIZE];
 107 extern IR_KEYTAB_TYPE ir_codes_avermedia[IR_KEYTAB_SIZE];
 108 extern IR_KEYTAB_TYPE ir_codes_avermedia_dvbt[IR_KEYTAB_SIZE];
 109 extern IR_KEYTAB_TYPE ir_codes_apac_viewcomp[IR_KEYTAB_SIZE];
 110 extern IR_KEYTAB_TYPE ir_codes_pixelview[IR_KEYTAB_SIZE];
 111 extern IR_KEYTAB_TYPE ir_codes_nebula[IR_KEYTAB_SIZE];
 112 extern IR_KEYTAB_TYPE ir_codes_dntv_live_dvb_t[IR_KEYTAB_SIZE];
 113 extern IR_KEYTAB_TYPE ir_codes_iodata_bctv7e[IR_KEYTAB_SIZE];
 114 extern IR_KEYTAB_TYPE ir_codes_adstech_dvb_t_pci[IR_KEYTAB_SIZE];
 115 extern IR_KEYTAB_TYPE ir_codes_msi_tvanywhere[IR_KEYTAB_SIZE];
 116 extern IR_KEYTAB_TYPE ir_codes_cinergy_1400[IR_KEYTAB_SIZE];
 117 extern IR_KEYTAB_TYPE ir_codes_avertv_303[IR_KEYTAB_SIZE];
 118 extern IR_KEYTAB_TYPE ir_codes_dntv_live_dvbt_pro[IR_KEYTAB_SIZE];
 119 extern IR_KEYTAB_TYPE ir_codes_em_terratec[IR_KEYTAB_SIZE];
 120 extern IR_KEYTAB_TYPE ir_codes_pinnacle_grey[IR_KEYTAB_SIZE];
 121 extern IR_KEYTAB_TYPE ir_codes_flyvideo[IR_KEYTAB_SIZE];
 122 extern IR_KEYTAB_TYPE ir_codes_flydvb[IR_KEYTAB_SIZE];
 123 extern IR_KEYTAB_TYPE ir_codes_cinergy[IR_KEYTAB_SIZE];
 124 extern IR_KEYTAB_TYPE ir_codes_eztv[IR_KEYTAB_SIZE];
 125 extern IR_KEYTAB_TYPE ir_codes_avermedia[IR_KEYTAB_SIZE];
 126 extern IR_KEYTAB_TYPE ir_codes_videomate_tv_pvr[IR_KEYTAB_SIZE];
 127 extern IR_KEYTAB_TYPE ir_codes_manli[IR_KEYTAB_SIZE];
 128 extern IR_KEYTAB_TYPE ir_codes_gotview7135[IR_KEYTAB_SIZE];
 129 extern IR_KEYTAB_TYPE ir_codes_purpletv[IR_KEYTAB_SIZE];
 130 extern IR_KEYTAB_TYPE ir_codes_pctv_sedna[IR_KEYTAB_SIZE];
 131 extern IR_KEYTAB_TYPE ir_codes_pv951[IR_KEYTAB_SIZE];
 132 extern IR_KEYTAB_TYPE ir_codes_rc5_tv[IR_KEYTAB_SIZE];
 133 extern IR_KEYTAB_TYPE ir_codes_winfast[IR_KEYTAB_SIZE];
 134 extern IR_KEYTAB_TYPE ir_codes_pinnacle_color[IR_KEYTAB_SIZE];
 135 extern IR_KEYTAB_TYPE ir_codes_hauppauge_new[IR_KEYTAB_SIZE];
 136 extern IR_KEYTAB_TYPE ir_codes_npgtech[IR_KEYTAB_SIZE];
 137 extern IR_KEYTAB_TYPE ir_codes_norwood[IR_KEYTAB_SIZE];
 138 extern IR_KEYTAB_TYPE ir_codes_proteus_2309[IR_KEYTAB_SIZE];
 139 extern IR_KEYTAB_TYPE ir_codes_budget_ci_old[IR_KEYTAB_SIZE];
 140 extern IR_KEYTAB_TYPE ir_codes_asus_pc39[IR_KEYTAB_SIZE];
 141 extern IR_KEYTAB_TYPE ir_codes_encore_enltv[IR_KEYTAB_SIZE];
 142 extern IR_KEYTAB_TYPE ir_codes_tt_1500[IR_KEYTAB_SIZE];
 143
 144 #endif
 145
 146 /*
 147  * Local variables:
 148  * c-basic-offset: 8
 149  * End:
 150  */