drivers/media/rc/keymaps/rc-cec.c

   1 // SPDX-License-Identifier: GPL-2.0-or-later
   2 /* Keytable for the CEC remote control
   3  *
   4  * Copyright (c) 2015 by Kamil Debski
   5  */
   6
   7 #include <media/rc-map.h>
   8 #include <linux/module.h>
   9
  10 /*
  11  * CEC Spec "High-Definition Multimedia Interface Specification" can be obtained
  12  * here: http://xtreamerdev.googlecode.com/files/CEC_Specs.pdf
  13  * The list of control codes is listed in Table 27: User Control Codes p. 95
  14  */
  15
  16 static struct rc_map_table cec[] = {
  17         { 0x00, KEY_OK },
  18         { 0x01, KEY_UP },
  19         { 0x02, KEY_DOWN },
  20         { 0x03, KEY_LEFT },
  21         { 0x04, KEY_RIGHT },
  22         { 0x05, KEY_RIGHT_UP },
  23         { 0x06, KEY_RIGHT_DOWN },
  24         { 0x07, KEY_LEFT_UP },
  25         { 0x08, KEY_LEFT_DOWN },
  26         { 0x09, KEY_ROOT_MENU }, /* CEC Spec: Device Root Menu - see Note 2 */
  27         /*
  28          * Note 2: This is the initial display that a device shows. It is
  29          * device-dependent and can be, for example, a contents menu, setup
  30          * menu, favorite menu or other menu. The actual menu displayed
  31          * may also depend on the device's current state.
  32          */
  33         { 0x0a, KEY_SETUP },
  34         { 0x0b, KEY_MENU }, /* CEC Spec: Contents Menu */
  35         { 0x0c, KEY_FAVORITES }, /* CEC Spec: Favorite Menu */
  36         { 0x0d, KEY_EXIT },
  37         /* 0x0e-0x0f: Reserved */
  38         { 0x10, KEY_MEDIA_TOP_MENU },
  39         { 0x11, KEY_CONTEXT_MENU },
  40         /* 0x12-0x1c: Reserved */
  41         { 0x1d, KEY_DIGITS }, /* CEC Spec: select/toggle a Number Entry Mode */
  42         { 0x1e, KEY_NUMERIC_11 },
  43         { 0x1f, KEY_NUMERIC_12 },
  44         /* 0x20-0x29: Keys 0 to 9 */
  45         { 0x20, KEY_NUMERIC_0 },
  46         { 0x21, KEY_NUMERIC_1 },
  47         { 0x22, KEY_NUMERIC_2 },
  48         { 0x23, KEY_NUMERIC_3 },
  49         { 0x24, KEY_NUMERIC_4 },
  50         { 0x25, KEY_NUMERIC_5 },
  51         { 0x26, KEY_NUMERIC_6 },
  52         { 0x27, KEY_NUMERIC_7 },
  53         { 0x28, KEY_NUMERIC_8 },
  54         { 0x29, KEY_NUMERIC_9 },
  55         { 0x2a, KEY_DOT },
  56         { 0x2b, KEY_ENTER },
  57         { 0x2c, KEY_CLEAR },
  58         /* 0x2d-0x2e: Reserved */
  59         { 0x2f, KEY_NEXT_FAVORITE }, /* CEC Spec: Next Favorite */
  60         { 0x30, KEY_CHANNELUP },
  61         { 0x31, KEY_CHANNELDOWN },
  62         { 0x32, KEY_PREVIOUS }, /* CEC Spec: Previous Channel */
  63         { 0x33, KEY_SOUND }, /* CEC Spec: Sound Select */
  64         { 0x34, KEY_VIDEO }, /* 0x34: CEC Spec: Input Select */
  65         { 0x35, KEY_INFO }, /* CEC Spec: Display Information */
  66         { 0x36, KEY_HELP },
  67         { 0x37, KEY_PAGEUP },
  68         { 0x38, KEY_PAGEDOWN },
  69         /* 0x39-0x3f: Reserved */
  70         { 0x40, KEY_POWER },
  71         { 0x41, KEY_VOLUMEUP },
  72         { 0x42, KEY_VOLUMEDOWN },
  73         { 0x43, KEY_MUTE },
  74         { 0x44, KEY_PLAYCD },
  75         { 0x45, KEY_STOPCD },
  76         { 0x46, KEY_PAUSECD },
  77         { 0x47, KEY_RECORD },
  78         { 0x48, KEY_REWIND },
  79         { 0x49, KEY_FASTFORWARD },
  80         { 0x4a, KEY_EJECTCD }, /* CEC Spec: Eject */
  81         { 0x4b, KEY_FORWARD },
  82         { 0x4c, KEY_BACK },
  83         { 0x4d, KEY_STOP_RECORD }, /* CEC Spec: Stop-Record */
  84         { 0x4e, KEY_PAUSE_RECORD }, /* CEC Spec: Pause-Record */
  85         /* 0x4f: Reserved */
  86         { 0x50, KEY_ANGLE },
  87         { 0x51, KEY_TV2 },
  88         { 0x52, KEY_VOD }, /* CEC Spec: Video on Demand */
  89         { 0x53, KEY_EPG },
  90         { 0x54, KEY_TIME }, /* CEC Spec: Timer */
  91         { 0x55, KEY_CONFIG },
  92         /*
  93          * The following codes are hard to implement at this moment, as they
  94          * carry an additional additional argument. Most likely changes to RC
  95          * framework are necessary.
  96          * For now they are interpreted by the CEC framework as non keycodes
  97          * and are passed as messages enabling user application to parse them.
  98          */
  99         /* 0x56: CEC Spec: Select Broadcast Type */
 100         /* 0x57: CEC Spec: Select Sound presentation */
 101         { 0x58, KEY_AUDIO_DESC }, /* CEC 2.0 and up */
 102         { 0x59, KEY_WWW }, /* CEC 2.0 and up */
 103         { 0x5a, KEY_3D_MODE }, /* CEC 2.0 and up */
 104         /* 0x5b-0x5f: Reserved */
 105         { 0x60, KEY_PLAYCD }, /* CEC Spec: Play Function */
 106         { 0x6005, KEY_FASTFORWARD },
 107         { 0x6006, KEY_FASTFORWARD },
 108         { 0x6007, KEY_FASTFORWARD },
 109         { 0x6015, KEY_SLOW },
 110         { 0x6016, KEY_SLOW },
 111         { 0x6017, KEY_SLOW },
 112         { 0x6009, KEY_FASTREVERSE },
 113         { 0x600a, KEY_FASTREVERSE },
 114         { 0x600b, KEY_FASTREVERSE },
 115         { 0x6019, KEY_SLOWREVERSE },
 116         { 0x601a, KEY_SLOWREVERSE },
 117         { 0x601b, KEY_SLOWREVERSE },
 118         { 0x6020, KEY_REWIND },
 119         { 0x6024, KEY_PLAYCD },
 120         { 0x6025, KEY_PAUSECD },
 121         { 0x61, KEY_PLAYPAUSE }, /* CEC Spec: Pause-Play Function */
 122         { 0x62, KEY_RECORD }, /* Spec: Record Function */
 123         { 0x63, KEY_PAUSE_RECORD }, /* CEC Spec: Pause-Record Function */
 124         { 0x64, KEY_STOPCD }, /* CEC Spec: Stop Function */
 125         { 0x65, KEY_MUTE }, /* CEC Spec: Mute Function */
 126         { 0x66, KEY_UNMUTE }, /* CEC Spec: Restore the volume */
 127         /*
 128          * The following codes are hard to implement at this moment, as they
 129          * carry an additional additional argument. Most likely changes to RC
 130          * framework are necessary.
 131          * For now they are interpreted by the CEC framework as non keycodes
 132          * and are passed as messages enabling user application to parse them.
 133          */
 134         /* 0x67: CEC Spec: Tune Function */
 135         /* 0x68: CEC Spec: Seleect Media Function */
 136         /* 0x69: CEC Spec: Select A/V Input Function */
 137         /* 0x6a: CEC Spec: Select Audio Input Function */
 138         { 0x6b, KEY_POWER }, /* CEC Spec: Power Toggle Function */
 139         { 0x6c, KEY_SLEEP }, /* CEC Spec: Power Off Function */
 140         { 0x6d, KEY_WAKEUP }, /* CEC Spec: Power On Function */
 141         /* 0x6e-0x70: Reserved */
 142         { 0x71, KEY_BLUE }, /* CEC Spec: F1 (Blue) */
 143         { 0x72, KEY_RED }, /* CEC Spec: F2 (Red) */
 144         { 0x73, KEY_GREEN }, /* CEC Spec: F3 (Green) */
 145         { 0x74, KEY_YELLOW }, /* CEC Spec: F4 (Yellow) */
 146         { 0x75, KEY_F5 },
 147         { 0x76, KEY_DATA }, /* CEC Spec: Data - see Note 3 */
 148         /*
 149          * Note 3: This is used, for example, to enter or leave a digital TV
 150          * data broadcast application.
 151          */
 152         /* 0x77-0xff: Reserved */
 153 };
 154
 155 static struct rc_map_list cec_map = {
 156         .map = {
 157                 .scan           = cec,
 158                 .size           = ARRAY_SIZE(cec),
 159                 .rc_proto       = RC_PROTO_CEC,
 160                 .name           = RC_MAP_CEC,
 161         }
 162 };
 163
 164 static int __init init_rc_map_cec(void)
 165 {
 166         return rc_map_register(&cec_map);
 167 }
 168
 169 static void __exit exit_rc_map_cec(void)
 170 {
 171         rc_map_unregister(&cec_map);
 172 }
 173
 174 module_init(init_rc_map_cec);
 175 module_exit(exit_rc_map_cec);
 176
 177 MODULE_LICENSE("GPL");
 178 MODULE_AUTHOR("Kamil Debski");