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Add API reference section for LED/RGB Matrix docs #23902

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Add API reference section for LED/RGB Matrix docs #23902

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339 changes: 290 additions & 49 deletions docs/features/led_matrix.md
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Original file line number Diff line number Diff line change
Expand Up @@ -381,55 +381,6 @@ For inspiration and examples, check out the built-in effects under `quantum/led_

The EEPROM for it is currently shared with the RGB Matrix system (it's generally assumed only one feature would be used at a time).

### Direct Operation {#direct-operation}
|Function |Description |
|--------------------------------------------|-------------|
|`led_matrix_set_value_all(v)` |Set all of the LEDs to the given value, where `v` is between 0 and 255 (not written to EEPROM) |
|`led_matrix_set_value(index, v)` |Set a single LED to the given value, where `v` is between 0 and 255, and `index` is between 0 and `LED_MATRIX_LED_COUNT` (not written to EEPROM) |

### Disable/Enable Effects {#disable-enable-effects}
|Function |Description |
|--------------------------------------------|-------------|
|`led_matrix_toggle()` |Toggle effect range LEDs between on and off |
|`led_matrix_toggle_noeeprom()` |Toggle effect range LEDs between on and off (not written to EEPROM) |
|`led_matrix_enable()` |Turn effect range LEDs on, based on their previous state |
|`led_matrix_enable_noeeprom()` |Turn effect range LEDs on, based on their previous state (not written to EEPROM) |
|`led_matrix_disable()` |Turn effect range LEDs off, based on their previous state |
|`led_matrix_disable_noeeprom()` |Turn effect range LEDs off, based on their previous state (not written to EEPROM) |

### Change Effect Mode {#change-effect-mode}
|Function |Description |
|--------------------------------------------|-------------|
|`led_matrix_mode(mode)` |Set the mode, if LED animations are enabled |
|`led_matrix_mode_noeeprom(mode)` |Set the mode, if LED animations are enabled (not written to EEPROM) |
|`led_matrix_step()` |Change the mode to the next LED animation in the list of enabled LED animations |
|`led_matrix_step_noeeprom()` |Change the mode to the next LED animation in the list of enabled LED animations (not written to EEPROM) |
|`led_matrix_step_reverse()` |Change the mode to the previous LED animation in the list of enabled LED animations |
|`led_matrix_step_reverse_noeeprom()` |Change the mode to the previous LED animation in the list of enabled LED animations (not written to EEPROM) |
|`led_matrix_increase_speed()` |Increase the speed of the animations |
|`led_matrix_increase_speed_noeeprom()` |Increase the speed of the animations (not written to EEPROM) |
|`led_matrix_decrease_speed()` |Decrease the speed of the animations |
|`led_matrix_decrease_speed_noeeprom()` |Decrease the speed of the animations (not written to EEPROM) |
|`led_matrix_set_speed(speed)` |Set the speed of the animations to the given value where `speed` is between 0 and 255 |
|`led_matrix_set_speed_noeeprom(speed)` |Set the speed of the animations to the given value where `speed` is between 0 and 255 (not written to EEPROM) |

### Change Value {#change-value}
|Function |Description |
|--------------------------------------------|-------------|
|`led_matrix_increase_val()` |Increase the value for effect range LEDs. This wraps around at maximum value |
|`led_matrix_increase_val_noeeprom()` |Increase the value for effect range LEDs. This wraps around at maximum value (not written to EEPROM) |
|`led_matrix_decrease_val()` |Decrease the value for effect range LEDs. This wraps around at minimum value |
|`led_matrix_decrease_val_noeeprom()` |Decrease the value for effect range LEDs. This wraps around at minimum value (not written to EEPROM) |

### Query Current Status {#query-current-status}
|Function |Description |
|---------------------------------|---------------------------|
|`led_matrix_is_enabled()` |Gets current on/off status |
|`led_matrix_get_mode()` |Gets current mode |
|`led_matrix_get_val()` |Gets current val |
|`led_matrix_get_speed()` |Gets current speed |
|`led_matrix_get_suspend_state()` |Gets current suspend state |

## Callbacks {#callbacks}

### Indicators {#indicators}
Expand All @@ -453,3 +404,293 @@ void led_matrix_indicators_advanced_user(uint8_t led_min, uint8_t led_max) {
return false;
}
```

## API {#api}

### `void led_matrix_toggle(void)` {#api-led-matrix-toggle}

Toggle LED Matrix on or off.

---

### `void led_matrix_toggle_noeeprom(void)` {#api-led-matrix-toggle-noeeprom}

Toggle LED Matrix on or off. New state is not written to EEPROM.

---

### `void led_matrix_enable(void)` {#api-led-matrix-enable}

Turn LED Matrix on.

---

### `void led_matrix_enable_noeeprom(void)` {#api-led-matrix-enable-noeeprom}

Turn LED Matrix on. New state is not written to EEPROM.

---

### `void led_matrix_disable(void)` {#api-led-matrix-disable}

Turn LED Matrix off.

---

### `void led_matrix_disable_noeeprom(void)` {#api-led-matrix-disable-noeeprom}

Turn LED Matrix off. New state is not written to EEPROM.

---

### `bool led_matrix_is_enabled(void)` {#api-led-matrix-is-enabled}

Get the current enabled state of LED Matrix.

#### Return Value {#api-led-matrix-is-enabled-return}

`true` if LED Matrix is enabled.

---

### `void led_matrix_set_value(uint8_t index, uint8_t v)` {#led-matrix-set-value}

Set the brightness of a single LED.

This function can only be run from within an effect or indicator callback, otherwise the currently running animation will simply overwrite it on the next frame.

#### Arguments {#api-led-matrix-set-value-arguments}

- `uint8_t index`
The LED index, from 0 to `LED_MATRIX_LED_COUNT - 1`.
- `uint8_t v`
The brightness value to set.

---

### `void led_matrix_set_value_all(uint8_t v)` {#api-led-matrix-set-value-all}

Set the brightness of all LEDs.

This function can only be run from within an effect or indicator callback, otherwise the currently running animation will simply overwrite it on the next frame.

#### Arguments {#api-led-matrix-set-value-all-arguments}

- `uint8_t v`
The brightness value to set.

---

### `void led_matrix_mode(uint8_t mode)` {#api-led-matrix-mode}

Set the currently running effect.

#### Arguments {#api-led-matrix-mode-arguments}

- `uint8_t mode`
The effect to switch to.

---

### `void led_matrix_mode_noeeprom(uint8_t mode)` {#api-led-matrix-mode-noeeprom}

Set the currently running effect. New state is not written to EEPROM.

#### Arguments {#api-led-matrix-mode-noeeprom-arguments}

- `uint8_t mode`
The effect to switch to.

---

### `void led_matrix_step(void)` {#api-led-matrix-step}

Move to the next enabled effect.

---

### `void led_matrix_step_noeeprom(void)` {#api-led-matrix-step-noeeprom}

Move to the next enabled effect. New state is not written to EEPROM.

---

### `void led_matrix_step_reverse(void)` {#api-led-matrix-step-reverse}

Move to the previous enabled effect.

---

### `void led_matrix_step_reverse_noeeprom(void)` {#api-led-matrix-step-reverse}

Move to the previous enabled effect. New state is not written to EEPROM.

---

### `uint8_t led_matrix_get_mode(void)` {#api-led-matrix-get-mode}

Get the currently running effect.

#### Return Value {#api-led-matrix-get-mode-return}

The index of the currently running effect.

---

### `void val_matrix_increase_val(void)` {#api-led-matrix-increase-val}

Increase the global effect brightness.

---

### `void led_matrix_increase_val_noeeprom(void)` {#api-led-matrix-increase-val-noeeprom}

Increase the global effect brightness. New state is not written to EEPROM.

---

### `void led_matrix_decrease_val(void)` {#api-led-matrix-decrease-val}

Decrease the global effect brightness.

---

### `void led_matrix_decrease_val_noeeprom(void)` {#api-led-matrix-decrease-val-noeeprom}

Decrease the global effect brightness. New state is not written to EEPROM.

---

### `uint8_t led_matrix_get_val(void)` {#api-led-matrix-get-val}

Get the current global effect brightness.

#### Return Value {#api-led-matrix-get-val-return}

The current brightness value, from 0 to 255.

---

### `void led_matrix_increase_speed(void)` {#api-led-matrix-increase-speed}

Increase the effect speed.

---

### `void led_matrix_increase_speed_noeeprom(void)` {#api-led-matrix-increase-speed-noeeprom}

Increase the effect speed. New state is not written to EEPROM.

---

### `void led_matrix_decrease_speed(void)` {#api-led-matrix-decrease-speed}

Decrease the effect speed.

---

### `void led_matrix_decrease_speed_noeeprom(void)` {#api-led-matrix-decrease-speed-noeeprom}

Decrease the effect speed. New state is not written to EEPROM.

---

### `void led_matrix_set_speed(uint8_t speed)` {#api-led-matrix-set-speed}

Set the effect speed.

#### Arguments {#api-led-matrix-set-speed-arguments}

- `uint8_t speed`
The new speed to set, from 0 to 255.

---

### `void led_matrix_set_speed_noeeprom(uint8_t speed)` {#api-led-matrix-set-speed-noeeprom}

Set the effect speed. New state is not written to EEPROM.

#### Arguments {#api-led-matrix-set-speed-noeeprom-arguments}

- `uint8_t speed`
The new speed to set, from 0 to 255.

---

### `uint8_t led_matrix_get_speed(void)` {#api-led-matrix-get-speed}

Get the current effect speed.

#### Return Value {#api-led-matrix-get-speed-return}

The current effect speed, from 0 to 255.

---

### `void led_matrix_reload_from_eeprom(void)` {#api-led-matrix-reload-from-eeprom}

Reload the effect configuration (enabled, mode and brightness) from EEPROM.

---

### `bool led_matrix_get_suspend_state(void)` {#api-led-matrix-get-suspend-state}

Get the current suspend state of LED Matrix.

#### Return Value {#api-led-matrix-get-suspend-state-return}

`true` if LED Matrix is currently in the suspended state.

---

### `bool led_matrix_indicators_kb(void)` {#api-led-matrix-indicators-kb}

Keyboard-level callback, invoked after current animation frame is rendered but before it is flushed to the LEDs.

#### Return Value {#api-led-matrix-indicators-kb-return}

Currently unused.

---

### `bool led_matrix_indicators_user(void)` {#api-led-matrix-indicators-user}

Keymap-level callback, invoked after current animation frame is rendered but before it is flushed to the LEDs.

#### Return Value {#api-led-matrix-indicators-user-return}

`true` to continue running the keyboard-level callback.

---

### `bool led_matrix_indicators_advanced_kb(uint8_t led_min, uint8_t led_max)` {#api-led-matrix-indicators-advanced-kb}

Keyboard-level callback, invoked after current animation frame is rendered but before it is flushed to the LEDs.

### Arguments {#api-led-matrix-indicators-advanced-kb-arguments}

- `uint8_t led_min`
The index of the first LED in this batch.
- `uint8_t led_max`
The index of the last LED in this batch.

#### Return Value {#api-led-matrix-indicators-advanced-kb-return}

Currently unused.

---

### `bool led_matrix_indicators_advanced_user(uint8_t led_min, uint8_t led_max)` {#api-led-matrix-indicators-advanced-user}

Keymap-level callback, invoked after current animation frame is rendered but before it is flushed to the LEDs.

### Arguments {#api-led-matrix-indicators-advanced-user-arguments}

- `uint8_t led_min`
The index of the first LED in this batch.
- `uint8_t led_max`
The index of the last LED in this batch.

#### Return Value {#api-led-matrix-indicators-advanced-user-return}

`true` to continue running the keyboard-level callback.
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