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 #include <linux/spinlock.h>
  30
  31 extern int media_ir_debug;    /* media_ir_debug level (0,1,2) */
  32 #define IR_dprintk(level, fmt, arg...)  if (media_ir_debug >= level) \
  33         printk(KERN_DEBUG "%s: " fmt , __func__, ## arg)
  34
  35 enum ir_type {
  36         IR_TYPE_UNKNOWN = 0,
  37         IR_TYPE_RC5 = 1,
  38         IR_TYPE_PD = 2,          /* Pulse distance encoded IR */
  39         IR_TYPE_NEC = 3,
  40         IR_TYPE_OTHER = 99,
  41 };
  42
  43 struct ir_scancode {
  44         u16     scancode;
  45         u32     keycode;
  46 };
  47
  48 struct ir_scancode_table {
  49         struct ir_scancode *scan;
  50         int size;
  51         enum ir_type ir_type;
  52         spinlock_t lock;
  53 };
  54
  55 #define RC5_START(x)    (((x)>>12)&3)
  56 #define RC5_TOGGLE(x)   (((x)>>11)&1)
  57 #define RC5_ADDR(x)     (((x)>>6)&31)
  58 #define RC5_INSTR(x)    ((x)&63)
  59
  60 struct ir_input_state {
  61         /* configuration */
  62         int                ir_type;
  63
  64         struct ir_scancode_table keytable;
  65
  66         /* key info */
  67         u32                ir_key;      /* ir scancode */
  68         u32                keycode;     /* linux key code */
  69         int                keypressed;  /* current state */
  70 };
  71
  72 /* this was saa7134_ir and bttv_ir, moved here for
  73  * rc5 decoding. */
  74 struct card_ir {
  75         struct input_dev        *dev;
  76         struct ir_input_state   ir;
  77         char                    name[32];
  78         char                    phys[32];
  79
  80         /* Usual gpio signalling */
  81
  82         u32                     mask_keycode;
  83         u32                     mask_keydown;
  84         u32                     mask_keyup;
  85         u32                     polling;
  86         u32                     last_gpio;
  87         int                     shift_by;
  88         int                     start; // What should RC5_START() be
  89         int                     addr; // What RC5_ADDR() should be.
  90         int                     rc5_key_timeout;
  91         int                     rc5_remote_gap;
  92         struct work_struct      work;
  93         struct timer_list       timer;
  94
  95         /* RC5 gpio */
  96         u32 rc5_gpio;
  97         struct timer_list timer_end;    /* timer_end for code completion */
  98         struct timer_list timer_keyup;  /* timer_end for key release */
  99         u32 last_rc5;                   /* last good rc5 code */
 100         u32 last_bit;                   /* last raw bit seen */
 101         u32 code;                       /* raw code under construction */
 102         struct timeval base_time;       /* time of last seen code */
 103         int active;                     /* building raw code */
 104
 105         /* NEC decoding */
 106         u32                     nec_gpio;
 107         struct tasklet_struct   tlet;
 108 };
 109
 110 /* Routines from ir-functions.c */
 111
 112 int ir_input_init(struct input_dev *dev, struct ir_input_state *ir,
 113                    int ir_type, struct ir_scancode_table *ir_codes);
 114 void ir_input_nokey(struct input_dev *dev, struct ir_input_state *ir);
 115 void ir_input_keydown(struct input_dev *dev, struct ir_input_state *ir,
 116                       u32 ir_key);
 117 u32  ir_extract_bits(u32 data, u32 mask);
 118 int  ir_dump_samples(u32 *samples, int count);
 119 int  ir_decode_biphase(u32 *samples, int count, int low, int high);
 120 int  ir_decode_pulsedistance(u32 *samples, int count, int low, int high);
 121 u32  ir_rc5_decode(unsigned int code);
 122
 123 void ir_rc5_timer_end(unsigned long data);
 124 void ir_rc5_timer_keyup(unsigned long data);
 125
 126 /* Routines from ir-keytable.c */
 127
 128 u32 ir_g_keycode_from_table(struct input_dev *input_dev,
 129                             u32 scancode);
 130
 131 int ir_set_keycode_table(struct input_dev *input_dev,
 132                          struct ir_scancode_table *rc_tab);
 133
 134 int ir_roundup_tablesize(int n_elems);
 135 int ir_copy_table(struct ir_scancode_table *destin,
 136                  const struct ir_scancode_table *origin);
 137 void ir_input_free(struct input_dev *input_dev);
 138
 139 /* scancode->keycode map tables from ir-keymaps.c */
 140
 141 extern struct ir_scancode_table ir_codes_empty_table;
 142 extern struct ir_scancode_table ir_codes_avermedia_table;
 143 extern struct ir_scancode_table ir_codes_avermedia_dvbt_table;
 144 extern struct ir_scancode_table ir_codes_avermedia_m135a_table;
 145 extern struct ir_scancode_table ir_codes_avermedia_cardbus_table;
 146 extern struct ir_scancode_table ir_codes_apac_viewcomp_table;
 147 extern struct ir_scancode_table ir_codes_pixelview_table;
 148 extern struct ir_scancode_table ir_codes_pixelview_new_table;
 149 extern struct ir_scancode_table ir_codes_nebula_table;
 150 extern struct ir_scancode_table ir_codes_dntv_live_dvb_t_table;
 151 extern struct ir_scancode_table ir_codes_iodata_bctv7e_table;
 152 extern struct ir_scancode_table ir_codes_adstech_dvb_t_pci_table;
 153 extern struct ir_scancode_table ir_codes_msi_tvanywhere_table;
 154 extern struct ir_scancode_table ir_codes_cinergy_1400_table;
 155 extern struct ir_scancode_table ir_codes_avertv_303_table;
 156 extern struct ir_scancode_table ir_codes_dntv_live_dvbt_pro_table;
 157 extern struct ir_scancode_table ir_codes_em_terratec_table;
 158 extern struct ir_scancode_table ir_codes_pinnacle_grey_table;
 159 extern struct ir_scancode_table ir_codes_flyvideo_table;
 160 extern struct ir_scancode_table ir_codes_flydvb_table;
 161 extern struct ir_scancode_table ir_codes_cinergy_table;
 162 extern struct ir_scancode_table ir_codes_eztv_table;
 163 extern struct ir_scancode_table ir_codes_avermedia_table;
 164 extern struct ir_scancode_table ir_codes_videomate_tv_pvr_table;
 165 extern struct ir_scancode_table ir_codes_manli_table;
 166 extern struct ir_scancode_table ir_codes_gotview7135_table;
 167 extern struct ir_scancode_table ir_codes_purpletv_table;
 168 extern struct ir_scancode_table ir_codes_pctv_sedna_table;
 169 extern struct ir_scancode_table ir_codes_pv951_table;
 170 extern struct ir_scancode_table ir_codes_rc5_tv_table;
 171 extern struct ir_scancode_table ir_codes_winfast_table;
 172 extern struct ir_scancode_table ir_codes_pinnacle_color_table;
 173 extern struct ir_scancode_table ir_codes_hauppauge_new_table;
 174 extern struct ir_scancode_table ir_codes_rc5_hauppauge_new_table;
 175 extern struct ir_scancode_table ir_codes_npgtech_table;
 176 extern struct ir_scancode_table ir_codes_norwood_table;
 177 extern struct ir_scancode_table ir_codes_proteus_2309_table;
 178 extern struct ir_scancode_table ir_codes_budget_ci_old_table;
 179 extern struct ir_scancode_table ir_codes_asus_pc39_table;
 180 extern struct ir_scancode_table ir_codes_encore_enltv_table;
 181 extern struct ir_scancode_table ir_codes_encore_enltv2_table;
 182 extern struct ir_scancode_table ir_codes_tt_1500_table;
 183 extern struct ir_scancode_table ir_codes_fusionhdtv_mce_table;
 184 extern struct ir_scancode_table ir_codes_behold_table;
 185 extern struct ir_scancode_table ir_codes_behold_columbus_table;
 186 extern struct ir_scancode_table ir_codes_pinnacle_pctv_hd_table;
 187 extern struct ir_scancode_table ir_codes_genius_tvgo_a11mce_table;
 188 extern struct ir_scancode_table ir_codes_powercolor_real_angel_table;
 189 extern struct ir_scancode_table ir_codes_avermedia_a16d_table;
 190 extern struct ir_scancode_table ir_codes_encore_enltv_fm53_table;
 191 extern struct ir_scancode_table ir_codes_real_audio_220_32_keys_table;
 192 extern struct ir_scancode_table ir_codes_msi_tvanywhere_plus_table;
 193 extern struct ir_scancode_table ir_codes_ati_tv_wonder_hd_600_table;
 194 extern struct ir_scancode_table ir_codes_kworld_plus_tv_analog_table;
 195 extern struct ir_scancode_table ir_codes_kaiomy_table;
 196 extern struct ir_scancode_table ir_codes_dm1105_nec_table;
 197 extern struct ir_scancode_table ir_codes_tevii_nec_table;
 198 extern struct ir_scancode_table ir_codes_tbs_nec_table;
 199 extern struct ir_scancode_table ir_codes_evga_indtube_table;
 200 extern struct ir_scancode_table ir_codes_terratec_cinergy_xs_table;
 201 extern struct ir_scancode_table ir_codes_videomate_s350_table;
 202 extern struct ir_scancode_table ir_codes_gadmei_rm008z_table;
 203 #endif