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 #include <linux/interrupt.h>
  29
  30 #define IR_TYPE_RC5     1
  31 #define IR_TYPE_PD      2 /* Pulse distance encoded IR */
  32 #define IR_TYPE_OTHER  99
  33
  34 #define IR_KEYTAB_TYPE u32
  35 #define IR_KEYTAB_SIZE  128  /* enougth for rc5, probably need more some day */
  36
  37 struct ir_scancode {
  38         u16     scancode;
  39         u32     keycode;
  40 };
  41
  42 struct ir_scancode_table {
  43         struct ir_scancode *scan;
  44         int size;
  45 };
  46
  47 #define IR_KEYCODE(tab,code)    (((unsigned)code < IR_KEYTAB_SIZE) \
  48                                  ? tab[code] : KEY_RESERVED)
  49
  50 #define RC5_START(x)    (((x)>>12)&3)
  51 #define RC5_TOGGLE(x)   (((x)>>11)&1)
  52 #define RC5_ADDR(x)     (((x)>>6)&31)
  53 #define RC5_INSTR(x)    ((x)&63)
  54
  55 struct ir_input_state {
  56         /* configuration */
  57         int                ir_type;
  58         IR_KEYTAB_TYPE     ir_codes[IR_KEYTAB_SIZE];
  59
  60         /* key info */
  61         u32                ir_raw;      /* raw data */
  62         u32                ir_key;      /* ir key code */
  63         u32                keycode;     /* linux key code */
  64         int                keypressed;  /* current state */
  65 };
  66
  67 /* this was saa7134_ir and bttv_ir, moved here for
  68  * rc5 decoding. */
  69 struct card_ir {
  70         struct input_dev        *dev;
  71         struct ir_input_state   ir;
  72         char                    name[32];
  73         char                    phys[32];
  74
  75         /* Usual gpio signalling */
  76
  77         u32                     mask_keycode;
  78         u32                     mask_keydown;
  79         u32                     mask_keyup;
  80         u32                     polling;
  81         u32                     last_gpio;
  82         int                     shift_by;
  83         int                     start; // What should RC5_START() be
  84         int                     addr; // What RC5_ADDR() should be.
  85         int                     rc5_key_timeout;
  86         int                     rc5_remote_gap;
  87         struct work_struct      work;
  88         struct timer_list       timer;
  89
  90         /* RC5 gpio */
  91         u32 rc5_gpio;
  92         struct timer_list timer_end;    /* timer_end for code completion */
  93         struct timer_list timer_keyup;  /* timer_end for key release */
  94         u32 last_rc5;                   /* last good rc5 code */
  95         u32 last_bit;                   /* last raw bit seen */
  96         u32 code;                       /* raw code under construction */
  97         struct timeval base_time;       /* time of last seen code */
  98         int active;                     /* building raw code */
  99
 100         /* NEC decoding */
 101         u32                     nec_gpio;
 102         struct tasklet_struct   tlet;
 103 };
 104
 105 void ir_input_init(struct input_dev *dev, struct ir_input_state *ir,
 106                    int ir_type, struct ir_scancode_table *ir_codes);
 107 void ir_input_nokey(struct input_dev *dev, struct ir_input_state *ir);
 108 void ir_input_keydown(struct input_dev *dev, struct ir_input_state *ir,
 109                       u32 ir_key, u32 ir_raw);
 110 u32  ir_extract_bits(u32 data, u32 mask);
 111 int  ir_dump_samples(u32 *samples, int count);
 112 int  ir_decode_biphase(u32 *samples, int count, int low, int high);
 113 int  ir_decode_pulsedistance(u32 *samples, int count, int low, int high);
 114
 115 void ir_rc5_timer_end(unsigned long data);
 116 void ir_rc5_timer_keyup(unsigned long data);
 117
 118 /* Keymaps to be used by other modules */
 119
 120 extern struct ir_scancode_table ir_codes_empty_table;
 121 extern struct ir_scancode_table ir_codes_avermedia_table;
 122 extern struct ir_scancode_table ir_codes_avermedia_dvbt_table;
 123 extern struct ir_scancode_table ir_codes_avermedia_m135a_table;
 124 extern struct ir_scancode_table ir_codes_avermedia_cardbus_table;
 125 extern struct ir_scancode_table ir_codes_apac_viewcomp_table;
 126 extern struct ir_scancode_table ir_codes_pixelview_table;
 127 extern struct ir_scancode_table ir_codes_pixelview_new_table;
 128 extern struct ir_scancode_table ir_codes_nebula_table;
 129 extern struct ir_scancode_table ir_codes_dntv_live_dvb_t_table;
 130 extern struct ir_scancode_table ir_codes_iodata_bctv7e_table;
 131 extern struct ir_scancode_table ir_codes_adstech_dvb_t_pci_table;
 132 extern struct ir_scancode_table ir_codes_msi_tvanywhere_table;
 133 extern struct ir_scancode_table ir_codes_cinergy_1400_table;
 134 extern struct ir_scancode_table ir_codes_avertv_303_table;
 135 extern struct ir_scancode_table ir_codes_dntv_live_dvbt_pro_table;
 136 extern struct ir_scancode_table ir_codes_em_terratec_table;
 137 extern struct ir_scancode_table ir_codes_pinnacle_grey_table;
 138 extern struct ir_scancode_table ir_codes_flyvideo_table;
 139 extern struct ir_scancode_table ir_codes_flydvb_table;
 140 extern struct ir_scancode_table ir_codes_cinergy_table;
 141 extern struct ir_scancode_table ir_codes_eztv_table;
 142 extern struct ir_scancode_table ir_codes_avermedia_table;
 143 extern struct ir_scancode_table ir_codes_videomate_tv_pvr_table;
 144 extern struct ir_scancode_table ir_codes_manli_table;
 145 extern struct ir_scancode_table ir_codes_gotview7135_table;
 146 extern struct ir_scancode_table ir_codes_purpletv_table;
 147 extern struct ir_scancode_table ir_codes_pctv_sedna_table;
 148 extern struct ir_scancode_table ir_codes_pv951_table;
 149 extern struct ir_scancode_table ir_codes_rc5_tv_table;
 150 extern struct ir_scancode_table ir_codes_winfast_table;
 151 extern struct ir_scancode_table ir_codes_pinnacle_color_table;
 152 extern struct ir_scancode_table ir_codes_hauppauge_new_table;
 153 extern struct ir_scancode_table ir_codes_npgtech_table;
 154 extern struct ir_scancode_table ir_codes_norwood_table;
 155 extern struct ir_scancode_table ir_codes_proteus_2309_table;
 156 extern struct ir_scancode_table ir_codes_budget_ci_old_table;
 157 extern struct ir_scancode_table ir_codes_asus_pc39_table;
 158 extern struct ir_scancode_table ir_codes_encore_enltv_table;
 159 extern struct ir_scancode_table ir_codes_encore_enltv2_table;
 160 extern struct ir_scancode_table ir_codes_tt_1500_table;
 161 extern struct ir_scancode_table ir_codes_fusionhdtv_mce_table;
 162 extern struct ir_scancode_table ir_codes_behold_table;
 163 extern struct ir_scancode_table ir_codes_behold_columbus_table;
 164 extern struct ir_scancode_table ir_codes_pinnacle_pctv_hd_table;
 165 extern struct ir_scancode_table ir_codes_genius_tvgo_a11mce_table;
 166 extern struct ir_scancode_table ir_codes_powercolor_real_angel_table;
 167 extern struct ir_scancode_table ir_codes_avermedia_a16d_table;
 168 extern struct ir_scancode_table ir_codes_encore_enltv_fm53_table;
 169 extern struct ir_scancode_table ir_codes_real_audio_220_32_keys_table;
 170 extern struct ir_scancode_table ir_codes_msi_tvanywhere_plus_table;
 171 extern struct ir_scancode_table ir_codes_ati_tv_wonder_hd_600_table;
 172 extern struct ir_scancode_table ir_codes_kworld_plus_tv_analog_table;
 173 extern struct ir_scancode_table ir_codes_kaiomy_table;
 174 extern struct ir_scancode_table ir_codes_dm1105_nec_table;
 175 extern struct ir_scancode_table ir_codes_evga_indtube_table;
 176 extern struct ir_scancode_table ir_codes_terratec_cinergy_xs_table;
 177 extern struct ir_scancode_table ir_codes_videomate_s350_table;
 178 extern struct ir_scancode_table ir_codes_gadmei_rm008z_table;
 179 #endif