diff --git a/doc/keymap.md b/doc/keymap.md index ca48c6e5..77e615a3 100644 --- a/doc/keymap.md +++ b/doc/keymap.md @@ -3,20 +3,20 @@ Keymap framework - how to define your keymap ***NOTE: This is not final version, may be inconsistent with source code and changed occasionally for a while.*** ## 0. Keymap and layers -**Keymap** is comprised of multiple layers of key layout, you can define **16** layers at most. -**Layer** is an array of **keycodes** to define **actions** on each physical keys. -respective layers can be validated simultaneously. Layers are indexed with 0 to 15 and higher layer has precedence. +**Keymap** is comprised of multiple layers of key layout, you can define **32 layers** at most. +**Layer** is an array of **keycodes** to define **actions** for each physical keys. +respective layers can be validated simultaneously. Layers are indexed with 0 to 31 and higher layer has precedence. - Keymap with 16 Layers Layer: array of Keycodes - --------------------- ------------------------ - stack of layers content of layer + Keymap: 32 Layers Layer: Keycode matrix + ----------------- --------------------- + stack of layers array_of_keycode[row][column] ____________ precedence _______________________ / / | high / ESC / F1 / F2 / F3 .... - 15 /___________// | /-----/-----/-----/----- - 14 /___________// | / TAB / / / .... - 13 /___________/_ | /-----/-----/-----/----- - : / : : : : : / | /LCtrl/ / / .... - 3 /___________// | : / : : : : + 31 /___________// | /-----/-----/-----/----- + 30 /___________// | / TAB / Q / W / E .... + 29 /___________/ | /-----/-----/-----/----- + : _:_:_:_:_:__ | : /LCtrl/ A / S / D .... + : / : : : : : / | : / : : : : 2 /___________// | 2 `-------------------------- 1 /___________// | 1 `-------------------------- 0 /___________/ V low 0 `-------------------------- @@ -25,42 +25,42 @@ respective layers can be validated simultaneously. Layers are indexed with 0 to ### 0.1 Keymap status Keymap has its state in two parameters: -**`default_layer`** indicates a base keymap layer(0-15) which is always valid and to be referred, **`keymap_stat`** is 16bit variable which has current on/off status of layers on its each bit. +**`default_layer`** indicates a base keymap layer(0-31) which is always valid and to be referred, **`keymap_stat`** is 16bit variable which has current on/off status of layers on its each bit. Keymap layer '0' is usually `default_layer` and which is the only valid layer and other layers is initially off after boot up firmware, though, you can configured them in `config.h`. -To change `default_layer` will be useful when you want to switch key layout completely, say you use Colmak instead of Qwerty. - - Initial state of Keymap Change base layout - ----------------------- ------------------ - - 15 15 - 14 14 - 13 13 - : : - 3 3 ____________ - 2 ____________ 2 / / - 1 / / ,->1 /___________/ - ,->0 /___________/ | 0 - | | - `--- default_layer = 0 `--- default_layer = 1 - keymap_stat = 0x0001 keymap_stat = 0x0002 - -On the other hand, you shall change `keymap_state` to overlay base layer with some layers for feature such as navigation keys, function key(F1-F12), media keys or special actions. +To change `default_layer` will be useful when you switch key layout completely, say you want Colmak instead of Qwerty. + + Initial state of Keymap Change base layout + ----------------------- ------------------ + + 31 31 + 30 30 + 29 29 + : : + : : ____________ + 2 ____________ 2 / / + 1 / / ,->1 /___________/ + ,->0 /___________/ | 0 + | | + `--- default_layer = 0 `--- default_layer = 1 + layer_state = 0x00000001 layer_state = 0x00000002 + +On the other hand, you shall change `layer_state` to overlay base layer with some layers for feature such as navigation keys, function key(F1-F12), media keys or special actions. Overlay feature layer --------------------- bit|status ____________ ---+------ - 15 / / 15 | 0 - 14 /___________// -----> 14 | 1 - 13 /___________/ -----> 13 | 1 - : : | - 3 ____________ 3 | 0 + 31 / / 31 | 0 + 30 /___________// -----> 30 | 1 + 29 /___________/ -----> 29 | 1 + : : | : + : ____________ : | : 2 / / 2 | 0 ,->1 /___________/ -----> 1 | 1 | 0 0 | 0 - | | + | + `--- default_layer = 1 | - keymap_stat = 0x6002 <-----' + layer_state = 0x60000002 <-' @@ -146,9 +146,9 @@ You can find other keymap definitions in file `keymap.c` located on project dire }; static const uint16_t PROGMEM fn_actions[] = { - ACTION_KEYMAP_MOMENTARY(1), // FN0 - ACTION_KEYMAP_TAP_KEY(2, KC_SCLN), // FN1 - ACTION_KEYMAP_TOGGLE(2), // FN2 + ACTION_LAYER_MOMENTARY(1), // FN0 + ACTION_LAYER_TAP_KEY(2, KC_SCLN), // FN1 + ACTION_LAYER_TOGGLE(2), // FN2 }; @@ -192,7 +192,7 @@ There are 8 modifiers which has discrimination between left and right. - `KC_WSCH`, `KC_WHOM`, `KC_WBAK`, `KC_WFWD`, `KC_WSTP`, `KC_WREF`, `KC_WFAV` for web browser operation ### 1.5 Fn key -`KC_FNnn` are keycodes for `Fn` key which not given any actions at the beginning unlike most of keycodes has its own inborn action. To use these keycodes in `KEYMAP` you need to assign action you want at first. Action of `Fn` key is defined in `fn_actions[]` and its index of the array is identical with number part of `KC_FNnn`. Thus `KC_FN0` keyocde indicates the action defined in first element of the array. ***32 `Fn` keys can be defined at most.*** +`KC_FNnn` are keycodes for `Fn` key which not given any actions at the beginning unlike most of keycodes has its own inborn action. To use these keycodes in `KEYMAP()` you need to assign action you want at first. Action of `Fn` key is defined in `fn_actions[]` and its index of the array is identical with number part of `KC_FNnn`. Thus `KC_FN0` keyocde indicates the action defined in first element of the array. ***32 `Fn` keys can be defined at most.*** ### 1.6 Keycode Table See keycode table in [`doc/keycode.txt`](./keycode.txt) for description of keycodes. @@ -205,128 +205,121 @@ There are 8 modifiers which has discrimination between left and right. ## 2. Action See [`common/action.h`](../common/action.h). Action is a **16bit code** and defines function to perform on events of a key like press, release, holding and tapping. -Most of keys just register 8bit scancode to host, but to support other complex features needs 16bit extended action codes internally. However, using 16bit action codes in keymap results in double size in memory against using jsut keycodes. To avoid this waste 8bit keycodes are used in `KEYMAP` instead of action codes. +Most of keys just register 8bit scancode to host, but to support other complex features needs 16bit extended action codes internally. However, using 16bit action codes in keymap results in double size in memory compared to using jsut keycodes. To avoid this waste 8bit keycodes are used in `KEYMAP()` instead of action codes. ***You can just use keycodes of `Normal key`, `Modifier`, `Mousekey` and `System & Media key` in keymap*** to indicate corresponding actions instead of using action codes. While ***to use other special actions you should use keycode of `Fn` key defined in `fn_actions[]`.*** -Usually action codes are needed only when you want to use layer switching, or ### 2.1 Key action This is a simple action that registers scancodes(HID usage in fact) to host on press event of key and unregister on release. #### 2.1.1 Normal key and Modifier -This action usually won't be used expressly because you can use keycodes in `KEYMAP()` instead. -You can define `Key` action on *'A'* key and *'left shift'* modifier with: +***This action usually won't be used expressly in keymap*** because you can just use keycodes in `KEYMAP()` instead. + +You can define these actions on *'A'* key and *'left shift'* modifier with: ACTION_KEY(KC_A) - ACTION_KEY(KC_LSHIFT) + ACTION_KEY(KC_LSFT) #### 2.1.2 Key with modifiers This action is comprised of strokes of modifiers and a key. `Macro` action is needed if you want more complex key strokes. + Say you want to assign a key to `Shift + 1` to get charactor *'!'* or `Alt + Tab` to switch application windows. - ACTION_LMOD_KEY(KC_LSHIFT, KC_1) - ACTION_LMOD_KEY(KC_LALT, KC_TAB) + ACTION_MOD_KEY(KC_LSFT, KC_1) + ACTION_MOD_KEY(KC_LALT, KC_TAB) Or `Alt,Shift + Tab` can be defined. `ACTION_LMODS_KEY()` requires **4-bit modifier state** and a **keycode** as arguments. See `keycode.h` for `MOD_BIT()` macro. - ACTION_LMODS_KEY((MOD_BIT(KC_LALT) | MOD_BIT(KC_LSHIFT)), KC_TAB) + ACTION_MODS_KEY((MOD_BIT(KC_LALT) | MOD_BIT(KC_LSFT)), KC_TAB) +#### 2.1.3 Multiple Modifiers +Registers multiple modifiers with a key. + ACTION_MODS(MOD_BIT(KC_ALT) | MOD_BIT(KC_LSFT)) + +#### 2.1.3 Modifier with tap key + + ACTION_MODS_TAP_KEY(KC_RSFT, KC_GRV) -### 2.2 Layer Action -These actions operate layers of keymap. -Parameters: -- layer: 0-15 -- on: { press | release | both } +### 2.2 Layer Action +These actions operate layers of keymap. -#### 2.2.0 Default Layer -`default_layer` is layer which always is valid and referred to when actions is not defined on other layers. +**Parameters:** -##### Return to Default Layer -Turns on only `default layer` with clearing other all layers. ++ **layer**: 0-31 ++ **on**: { press | release | both } - ACTION_DEFAULT_LAYER -##### Set Default Layer -Sets 'default layer' to layer and turn it on. +#### 2.2.1 Default Layer +`default_layer` is layer which always is valid and referred to when actions is not defined on other overlay layers. - ACTION_DEFAULT_LAYER_SET_TO(layer) - ACTION_DEFAULT_LAYER_SET(layer, on) +Sets `default_layer` to given parameter `layer` and turn it on. + ACTION_DEFAULT_LAYER(layer) -#### 2.2.1 Keymap -These actions operate layer status of keymap. -##### Momentary Switch -Turns on layer momentary while holding, in other words turn on when key is pressed and off when released. +#### 2.2.2 Momentary Switch +Turns on `layer` momentarily while holding, in other words turn on when key is pressed and off when released. - ACTION_KEYMAP_MOMENTARY(layer) + ACTION_LAYER_MOMENTARY(layer) -##### Toggle Switch +#### 2.2.3 Toggle Switch Turns on layer on first type and turns off on next. - ACTION_KEYMAP_TOGGLE(layer) + ACTION_LAYER_TOGGLE(layer) -##### Momentary Switch with tap key +#### 2.2.4 Momentary Switch with tap key Turns on layer momentary while holding but registers key on tap. - ACTION_KEYMAP_TAP_KEY(layer, key) + ACTION_LAYER_TAP_KEY(layer, key) -##### Momentary Switch with tap toggle +#### 2.2.5 Momentary Switch with tap toggle Turns on layer momentary while holding but toggles it with serial taps. - ACTION_KEYMAP_TAP_TOGGLE(layer) + ACTION_LAYER_TAP_TOGGLE(layer) -##### Invert layer +#### 2.2.6 Invert state of layer Inverts current layer state. If the layer is on it becomes off with this action. - ACTION_KEYMAP_INV(layer, on) + ACTION_LAYER_INVERT(layer, on) -##### Turn On layer +#### 2.2.7 Turn On layer Turns on layer state. - ACTION_KEYMAP_ON(layer, on) + ACTION_LAYER_ON(layer, on) -Turns on layer state on press and turn off on release. This is identical to **'Switch to layer'** action. +Turns on layer state on press and turns off on release. - ACTION_KEYMAP_ON_OFF(layer) + ACTION_LAYER_ON_OFF(layer) -##### Turn Off layer +#### 2.2.8 Turn Off layer Turns off layer state. - ACTION_KEYMAP_OFF(layer, on) + ACTION_LAYER_OFF(layer, on) +Turns off layer state on press and activates on release. -##### Set layer -Turn on layer only. -`keymap_stat = (1<