rc-cec.c

  1// SPDX-License-Identifier: GPL-2.0-or-later
  2/* Keytable for the CEC remote control
  3 *
  4 * This keymap is unusual in that it can't be built as a module,
  5 * instead it is registered directly in rc-main.c if CONFIG_MEDIA_CEC_RC
  6 * is set. This is because it can be called from drm_dp_cec_set_edid() via
  7 * cec_register_adapter() in an asynchronous context, and it is not
  8 * allowed to use request_module() to load rc-cec.ko in that case.
  9 *
 10 * Since this keymap is only used if CONFIG_MEDIA_CEC_RC is set, we
 11 * just compile this keymap into the rc-core module and never as a
 12 * separate module.
 13 *
 14 * Copyright (c) 2015 by Kamil Debski
 15 */
 16
 17#include <media/rc-map.h>
 18#include <linux/module.h>
 19
 20/*
 21 * CEC Spec "High-Definition Multimedia Interface Specification" can be obtained
 22 * here: http://xtreamerdev.googlecode.com/files/CEC_Specs.pdf
 23 * The list of control codes is listed in Table 27: User Control Codes p. 95
 24 */
 25
 26static struct rc_map_table cec[] = {
 27	{ 0x00, KEY_OK },
 28	{ 0x01, KEY_UP },
 29	{ 0x02, KEY_DOWN },
 30	{ 0x03, KEY_LEFT },
 31	{ 0x04, KEY_RIGHT },
 32	{ 0x05, KEY_RIGHT_UP },
 33	{ 0x06, KEY_RIGHT_DOWN },
 34	{ 0x07, KEY_LEFT_UP },
 35	{ 0x08, KEY_LEFT_DOWN },
 36	{ 0x09, KEY_ROOT_MENU }, /* CEC Spec: Device Root Menu - see Note 2 */
 37	/*
 38	 * Note 2: This is the initial display that a device shows. It is
 39	 * device-dependent and can be, for example, a contents menu, setup
 40	 * menu, favorite menu or other menu. The actual menu displayed
 41	 * may also depend on the device's current state.
 42	 */
 43	{ 0x0a, KEY_SETUP },
 44	{ 0x0b, KEY_MENU }, /* CEC Spec: Contents Menu */
 45	{ 0x0c, KEY_FAVORITES }, /* CEC Spec: Favorite Menu */
 46	{ 0x0d, KEY_EXIT },
 47	/* 0x0e-0x0f: Reserved */
 48	{ 0x10, KEY_MEDIA_TOP_MENU },
 49	{ 0x11, KEY_CONTEXT_MENU },
 50	/* 0x12-0x1c: Reserved */
 51	{ 0x1d, KEY_DIGITS }, /* CEC Spec: select/toggle a Number Entry Mode */
 52	{ 0x1e, KEY_NUMERIC_11 },
 53	{ 0x1f, KEY_NUMERIC_12 },
 54	/* 0x20-0x29: Keys 0 to 9 */
 55	{ 0x20, KEY_NUMERIC_0 },
 56	{ 0x21, KEY_NUMERIC_1 },
 57	{ 0x22, KEY_NUMERIC_2 },
 58	{ 0x23, KEY_NUMERIC_3 },
 59	{ 0x24, KEY_NUMERIC_4 },
 60	{ 0x25, KEY_NUMERIC_5 },
 61	{ 0x26, KEY_NUMERIC_6 },
 62	{ 0x27, KEY_NUMERIC_7 },
 63	{ 0x28, KEY_NUMERIC_8 },
 64	{ 0x29, KEY_NUMERIC_9 },
 65	{ 0x2a, KEY_DOT },
 66	{ 0x2b, KEY_ENTER },
 67	{ 0x2c, KEY_CLEAR },
 68	/* 0x2d-0x2e: Reserved */
 69	{ 0x2f, KEY_NEXT_FAVORITE }, /* CEC Spec: Next Favorite */
 70	{ 0x30, KEY_CHANNELUP },
 71	{ 0x31, KEY_CHANNELDOWN },
 72	{ 0x32, KEY_PREVIOUS }, /* CEC Spec: Previous Channel */
 73	{ 0x33, KEY_SOUND }, /* CEC Spec: Sound Select */
 74	{ 0x34, KEY_VIDEO }, /* 0x34: CEC Spec: Input Select */
 75	{ 0x35, KEY_INFO }, /* CEC Spec: Display Information */
 76	{ 0x36, KEY_HELP },
 77	{ 0x37, KEY_PAGEUP },
 78	{ 0x38, KEY_PAGEDOWN },
 79	/* 0x39-0x3f: Reserved */
 80	{ 0x40, KEY_POWER },
 81	{ 0x41, KEY_VOLUMEUP },
 82	{ 0x42, KEY_VOLUMEDOWN },
 83	{ 0x43, KEY_MUTE },
 84	{ 0x44, KEY_PLAYCD },
 85	{ 0x45, KEY_STOPCD },
 86	{ 0x46, KEY_PAUSECD },
 87	{ 0x47, KEY_RECORD },
 88	{ 0x48, KEY_REWIND },
 89	{ 0x49, KEY_FASTFORWARD },
 90	{ 0x4a, KEY_EJECTCD }, /* CEC Spec: Eject */
 91	{ 0x4b, KEY_FORWARD },
 92	{ 0x4c, KEY_BACK },
 93	{ 0x4d, KEY_STOP_RECORD }, /* CEC Spec: Stop-Record */
 94	{ 0x4e, KEY_PAUSE_RECORD }, /* CEC Spec: Pause-Record */
 95	/* 0x4f: Reserved */
 96	{ 0x50, KEY_ANGLE },
 97	{ 0x51, KEY_TV2 },
 98	{ 0x52, KEY_VOD }, /* CEC Spec: Video on Demand */
 99	{ 0x53, KEY_EPG },
100	{ 0x54, KEY_TIME }, /* CEC Spec: Timer */
101	{ 0x55, KEY_CONFIG },
102	/*
103	 * The following codes are hard to implement at this moment, as they
104	 * carry an additional additional argument. Most likely changes to RC
105	 * framework are necessary.
106	 * For now they are interpreted by the CEC framework as non keycodes
107	 * and are passed as messages enabling user application to parse them.
108	 */
109	/* 0x56: CEC Spec: Select Broadcast Type */
110	/* 0x57: CEC Spec: Select Sound presentation */
111	{ 0x58, KEY_AUDIO_DESC }, /* CEC 2.0 and up */
112	{ 0x59, KEY_WWW }, /* CEC 2.0 and up */
113	{ 0x5a, KEY_3D_MODE }, /* CEC 2.0 and up */
114	/* 0x5b-0x5f: Reserved */
115	{ 0x60, KEY_PLAYCD }, /* CEC Spec: Play Function */
116	{ 0x6005, KEY_FASTFORWARD },
117	{ 0x6006, KEY_FASTFORWARD },
118	{ 0x6007, KEY_FASTFORWARD },
119	{ 0x6015, KEY_SLOW },
120	{ 0x6016, KEY_SLOW },
121	{ 0x6017, KEY_SLOW },
122	{ 0x6009, KEY_FASTREVERSE },
123	{ 0x600a, KEY_FASTREVERSE },
124	{ 0x600b, KEY_FASTREVERSE },
125	{ 0x6019, KEY_SLOWREVERSE },
126	{ 0x601a, KEY_SLOWREVERSE },
127	{ 0x601b, KEY_SLOWREVERSE },
128	{ 0x6020, KEY_REWIND },
129	{ 0x6024, KEY_PLAYCD },
130	{ 0x6025, KEY_PAUSECD },
131	{ 0x61, KEY_PLAYPAUSE }, /* CEC Spec: Pause-Play Function */
132	{ 0x62, KEY_RECORD }, /* Spec: Record Function */
133	{ 0x63, KEY_PAUSE_RECORD }, /* CEC Spec: Pause-Record Function */
134	{ 0x64, KEY_STOPCD }, /* CEC Spec: Stop Function */
135	{ 0x65, KEY_MUTE }, /* CEC Spec: Mute Function */
136	{ 0x66, KEY_UNMUTE }, /* CEC Spec: Restore the volume */
137	/*
138	 * The following codes are hard to implement at this moment, as they
139	 * carry an additional additional argument. Most likely changes to RC
140	 * framework are necessary.
141	 * For now they are interpreted by the CEC framework as non keycodes
142	 * and are passed as messages enabling user application to parse them.
143	 */
144	/* 0x67: CEC Spec: Tune Function */
145	/* 0x68: CEC Spec: Seleect Media Function */
146	/* 0x69: CEC Spec: Select A/V Input Function */
147	/* 0x6a: CEC Spec: Select Audio Input Function */
148	{ 0x6b, KEY_POWER }, /* CEC Spec: Power Toggle Function */
149	{ 0x6c, KEY_SLEEP }, /* CEC Spec: Power Off Function */
150	{ 0x6d, KEY_WAKEUP }, /* CEC Spec: Power On Function */
151	/* 0x6e-0x70: Reserved */
152	{ 0x71, KEY_BLUE }, /* CEC Spec: F1 (Blue) */
153	{ 0x72, KEY_RED }, /* CEC Spec: F2 (Red) */
154	{ 0x73, KEY_GREEN }, /* CEC Spec: F3 (Green) */
155	{ 0x74, KEY_YELLOW }, /* CEC Spec: F4 (Yellow) */
156	{ 0x75, KEY_F5 },
157	{ 0x76, KEY_DATA }, /* CEC Spec: Data - see Note 3 */
158	/*
159	 * Note 3: This is used, for example, to enter or leave a digital TV
160	 * data broadcast application.
161	 */
162	/* 0x77-0xff: Reserved */
163};
164
165struct rc_map_list cec_map = {
166	.map = {
167		.scan		= cec,
168		.size		= ARRAY_SIZE(cec),
169		.rc_proto	= RC_PROTO_CEC,
170		.name		= RC_MAP_CEC,
171	}
172};