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Added support for ghosting matrices and code for elimination.

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To use define GHOST in matrix.h, see example in Scan/CK3
This commit is contained in:
CryHam 2016-02-19 18:10:25 +01:00
parent 1fd19c48ea
commit 6687470ae7
9 changed files with 712 additions and 1 deletions
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85
Scan/CK3/defaultMap.kll Normal file
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@ -0,0 +1,85 @@
Name = CK3;
Version = 0.3;
Author = "Crystal Hammer 2016";
KLL = 0.3c;
# Modified Date
Date = 2016-02-19;
S0x00 : U"Esc";
S0x01 : U"1";
S0x02 : U"2";
S0x03 : U"3";
S0x04 : U"4";
S0x05 : U"5";
S0x06 : U"6";
S0x07 : U"7";
S0x08 : U"8";
S0x09 : U"9";
S0x0A : U"0";
S0x0B : U"Minus";
S0x0C : U"Equal";
S0x0D : U"Backslash";
S0x0E : U"Backtick";
S0x0F : U"Tab";
S0x10 : U"Q";
S0x11 : U"W";
S0x12 : U"E";
S0x13 : U"R";
S0x14 : U"T";
S0x15 : U"Y";
S0x16 : U"U";
S0x17 : U"I";
S0x18 : U"O";
S0x19 : U"P";
S0x1A : U"LBrace";
S0x1B : U"RBrace";
S0x1C : U"Backspace";
S0x1D : U"Ctrl";
S0x1E : U"A";
S0x1F : U"S";
S0x20 : U"D";
S0x21 : U"F";
S0x22 : U"G";
S0x23 : U"H";
S0x24 : U"J";
S0x25 : U"K";
S0x26 : U"L";
S0x27 : U"Semicolon";
S0x28 : U"Quote";
S0x29 : U"Enter";
S0x2A : U"LShift";
S0x2B : U"Z";
S0x2C : U"X";
S0x2D : U"C";
S0x2E : U"V";
S0x2F : U"B";
S0x30 : U"N";
S0x31 : U"M";
S0x32 : U"Comma";
S0x33 : U"Period";
S0x34 : U"Slash";
S0x35 : U"RShift";
S0x36 : U"Function1"; # Fun key
S0x37 : U"Function2"; # Left Blank Key
S0x38 : U"LAlt";
S0x39 : U"LGui";
S0x3A : U"Space";
S0x3B : U"RGui";
S0x3C : U"RAlt";
S0x3D : U"Function3"; # Right Blank Key 1
S0x3E : U"Function4"; # Right Blank Key 2
# Custom Action Examples
# Example capability, prints to cli
action1 => CustomAction_action1_capability(); # No arguments
# Blocks given USB Code, must be used with blockLink
# Simple example, supports only blocking a single key at a time
# Keys must be specified using numbers see Macro/PartialMap/usb_hid.h
blockHold => CustomAction_blockHold_capability( usbCode : 1 ); # Single 8-bit argument
blockKey => CustomAction_blockKey_capability( usbCode : 1 );

53
Scan/CK3/matrix.h Normal file
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/* Copyright (C) 2014-2015 by Jacob Alexander
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
#pragma once
// ----- Includes -----
// Project Includes
#include <matrix_setup.h>
// ----- Matrix Definition -----
// Freescale ARM MK20's support GPIO PTA, PTB, PTC, PTD and PTE 0..31
// Not all chips have access to all of these pins (most don't have 160 pins :P)
//
// NOTE:
// Before using a pin, make sure it supports being a GPIO *and* doesn't have a default pull-up/pull-down
// Checking this is completely on the ownness of the user
//
// Columns (Strobe) // PTB0..3,16,17 PTC4,5 PTD0
// Rows (Sense) // PTD1..7
// Define Rows (Sense) and Columns (Strobes)
GPIO_Pin Matrix_cols[] = { gpio(B,0), gpio(B,1), gpio(B,2), gpio(B,3), gpio(B,16), gpio(B,17), gpio(C,4), gpio(C,6), gpio(D,0) };
GPIO_Pin Matrix_rows[] = { gpio(D,1), gpio(D,2), gpio(D,3), gpio(D,4), gpio(D,5), gpio(D,6), gpio(D,7) };
// Define type of scan matrix
Config Matrix_type = Config_Pulldown;
// define this if your matrix has ghosting (i.e. regular keyboard without diodes)
#define GHOST

88
Scan/CK3/pinout Normal file
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@ -0,0 +1,88 @@
Pin Usage
=========
mk20dx128vlf5
----
|Keys|
----
* Strobe (Columns)
PTB0
PTB1
PTB2
PTB3
PTB16
PTB17
PTC4
PTC5
PTD0
* Sense (Rows)
PTD1
PTD2
PTD3
PTD4
PTD5
PTD6
PTD7
-----
|Debug|
-----
* SWD
PTA0 (Pull-down)
PTA3 (Pull-up)
* LEDs
PTA19 (LED only for PCB, not McHCK) (XTAL)
* UARTs
PTA1 - RX0
PTA2 - TX0
* Tag Connect
1 - Vdd +5
2 - PTA3 / SWD_IO
3 - Vss / Gnd
4 - PTA0 / SWD_CLK
5 - +5V
6 - PTA2 / TRACE_SWO
7 - N/C
8 - PTA1 / JTAG_TDI
9 - N/C
10 - Reset_b
------
|Unused|
------
* GPIO
PTA1 (Not broken out on PCB, available on McHCK) (Pull-up)
PTA2 (")
PTA4 (Pull-up)
PTA18 (EXTAL)
PTC0
PTC1
PTC2
PTC3
PTC6
PTC7
* Analog
ADC0_DP0
ADC0_DM0

73
Scan/CK3/prototype.kll Normal file
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@ -0,0 +1,73 @@
Name = MD1;
Version = 0.2;
Author = "HaaTa (Jacob Alexander) 2014";
KLL = 0.3;
# Modified Date
Date = 2014-09-14;
S0x00 : U"Esc";
S0x01 : U"1";
S0x02 : U"2";
S0x03 : U"3";
S0x04 : U"4";
S0x05 : U"5";
S0x06 : U"6";
S0x07 : U"7";
S0x08 : U"8";
S0x09 : U"9";
S0x0A : U"0";
S0x0B : U"Minus";
S0x0C : U"Equal";
S0x0D : U"Backslash";
S0x0E : U"Tab";
S0x0F : U"Q";
S0x10 : U"W";
S0x11 : U"E";
S0x12 : U"R";
S0x13 : U"T";
S0x14 : U"Y";
S0x15 : U"U";
S0x16 : U"I";
S0x17 : U"O";
S0x18 : U"P";
S0x19 : U"LBrace";
S0x1A : U"RBrace";
S0x1B : U"Backspace";
S0x1C : U"Ctrl";
S0x1D : U"A";
S0x1E : U"S";
S0x1F : U"D";
S0x20 : U"F";
S0x21 : U"G";
S0x22 : U"H";
S0x23 : U"J";
S0x24 : U"K";
S0x25 : U"L";
S0x26 : U"Semicolon";
S0x27 : U"Quote";
S0x28 : U"Enter";
S0x29 : U"LShift";
S0x2A : U"Z";
S0x2B : U"X";
S0x2C : U"C";
S0x2D : U"V";
S0x2E : U"B";
S0x2F : U"N";
S0x30 : U"M";
S0x31 : U"Comma";
S0x32 : U"Period";
S0x33 : U"Slash";
S0x34 : U"RShift";
S0x35 : U"Function1"; # Fun key
S0x36 : U"Function2"; # Left Blank Key
S0x37 : U"LAlt";
S0x38 : U"LGui";
S0x39 : U"Space";
S0x3A : U"RGui";
S0x3B : U"RAlt";
S0x3C : U"Function3"; # Right Blank Key 1
S0x3D : U"Function4"; # Right Blank Key 2
S0x3E : U"BackTick";

204
Scan/CK3/scan_loop.c Normal file
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@ -0,0 +1,204 @@
/* Copyright (C) 2014 by Jacob Alexander
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
// ----- Includes -----
// Compiler Includes
#include <Lib/ScanLib.h>
// Project Includes
#include <cli.h>
#include <led.h>
#include <print.h>
#include <matrix_scan.h>
#include <macro.h>
// Local Includes
#include "scan_loop.h"
// ----- Function Declarations -----
// CLI Functions
void cliFunc_echo( char* args );
// ----- Variables -----
// Scan Module command dictionary
CLIDict_Entry( echo, "Example command, echos the arguments." );
CLIDict_Def( scanCLIDict, "Scan Module Commands" ) = {
CLIDict_Item( echo ),
{ 0, 0, 0 } // Null entry for dictionary end
};
// Number of scans since the last USB send
uint16_t Scan_scanCount = 0;
// ----- Functions -----
// Setup
inline void Scan_setup()
{
// Register Scan CLI dictionary
CLI_registerDictionary( scanCLIDict, scanCLIDictName );
// Setup GPIO pins for matrix scanning
Matrix_setup();
// Reset scan count
Scan_scanCount = 0;
}
// Main Detection Loop
inline uint8_t Scan_loop()
{
Matrix_scan( Scan_scanCount++ );
return 0;
}
// Signal from Macro Module that all keys have been processed (that it knows about)
inline void Scan_finishedWithMacro( uint8_t sentKeys )
{
}
// Signal from Output Module that all keys have been processed (that it knows about)
inline void Scan_finishedWithOutput( uint8_t sentKeys )
{
// Reset scan loop indicator (resets each key debounce state)
// TODO should this occur after USB send or Macro processing?
Scan_scanCount = 0;
}
// ----- Capabilities -----
// Custom capability examples
// Refer to kll.h in Macros/PartialMap for state and stateType information
void CustomAction_action1_capability( uint8_t state, uint8_t stateType, uint8_t *args )
{
// Display capability name
// XXX This is required for debug cli to give you a list of capabilities
if ( stateType == 0xFF && state == 0xFF )
{
print("CustomAction_action1_capability()");
return;
}
// Prints Action1 info message to the debug cli
info_print("Action1");
}
uint8_t CustomAction_blockHold_storage = 0;
void CustomAction_blockHold_capability( uint8_t state, uint8_t stateType, uint8_t *args )
{
// Display capability name
if ( stateType == 0xFF && state == 0xFF )
{
print("CustomAction_blockHold_capability(usbCode)");
return;
}
// Retrieve 8-bit argument
uint8_t key = args[0];
// We only care about normal keys
if ( stateType == 0x00 )
{
// Block given key if we're in the "Press" or "Hold" state
if ( ( state == 0x01 || state == 0x02 )
&& CustomAction_blockHold_storage == 0 )
{
CustomAction_blockHold_storage = key;
info_msg("Blocking Key: ");
printHex( key );
print( NL );
}
// Release if in the "Off" or "Release" state and we're blocking
else if ( ( state == 0x00 || state == 0x03 )
&& key == CustomAction_blockHold_storage )
{
info_msg("Unblocking Key: ");
printHex( CustomAction_blockHold_storage );
print( NL );
CustomAction_blockHold_storage = 0;
}
}
}
void CustomAction_blockKey_capability( uint8_t state, uint8_t stateType, uint8_t *args )
{
// Display capability name
if ( stateType == 0xFF && state == 0xFF )
{
print("CustomAction_blockKey_capability(usbCode)");
return;
}
// Retrieve 8-bit argument
uint8_t key = args[0];
// If key is not blocked, process
if ( key != CustomAction_blockHold_storage )
{
extern void Output_usbCodeSend_capability( uint8_t state, uint8_t stateType, uint8_t *args );
Output_usbCodeSend_capability( state, stateType, &key );
}
}
// ----- CLI Command Functions -----
// XXX Just an example command showing how to parse arguments (more complex than generally needed)
void cliFunc_echo( char* args )
{
char* curArgs;
char* arg1Ptr;
char* arg2Ptr = args;
// Parse args until a \0 is found
while ( 1 )
{
print( NL ); // No \r\n by default after the command is entered
curArgs = arg2Ptr; // Use the previous 2nd arg pointer to separate the next arg from the list
CLI_argumentIsolation( curArgs, &arg1Ptr, &arg2Ptr );
// Stop processing args if no more are found
if ( *arg1Ptr == '\0' )
break;
// Print out the arg
dPrint( arg1Ptr );
}
}

48
Scan/CK3/scan_loop.h Normal file
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@ -0,0 +1,48 @@
/* Copyright (C) 2014-2015 by Jacob Alexander
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
#pragma once
// ----- Includes -----
// Compiler Includes
#include <stdint.h>
// ----- Functions -----
// Functions to be called by main.c
void Scan_setup( void );
uint8_t Scan_loop( void );
// Call-backs
void Scan_finishedWithMacro( uint8_t sentKeys ); // Called by Macro Module
void Scan_finishedWithOutput( uint8_t sentKeys ); // Called by Output Module
// ----- Capabilities -----
// Example capabilities
void CustomAction_action1_capability( uint8_t state, uint8_t stateType, uint8_t *args );
void CustomAction_blockHold_capability( uint8_t state, uint8_t stateType, uint8_t *args );
void CustomAction_blockKey_capability( uint8_t state, uint8_t stateType, uint8_t *args );

32
Scan/CK3/setup.cmake Normal file
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@ -0,0 +1,32 @@
###| CMake Kiibohd Controller Scan Module |###
#
# Written by Jacob Alexander in 2014 for the Kiibohd Controller
#
# Released into the Public Domain
#
###
###
# Required Submodules
#
AddModule ( Scan MatrixARM )
###
# Module C files
#
set ( Module_SRCS
scan_loop.c
)
###
# Compiler Family Compatibility
#
set ( ModuleCompatibility
arm
)

120
Scan/MatrixARM/matrix_scan.c
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@ -70,6 +70,15 @@ CLIDict_Def( matrixCLIDict, "Matrix Module Commands" ) = {
// Debounce Array // Debounce Array
KeyState Matrix_scanArray[ Matrix_colsNum * Matrix_rowsNum ]; KeyState Matrix_scanArray[ Matrix_colsNum * Matrix_rowsNum ];
// Ghost Arrays
#ifdef GHOST
KeyGhost Matrix_ghostArray[ Matrix_colsNum * Matrix_rowsNum ];
uint8_t col_use[Matrix_colsNum], row_use[Matrix_rowsNum]; // used count
uint8_t col_ghost[Matrix_colsNum], row_ghost[Matrix_rowsNum]; // marked as having ghost if 1
#endif
// Matrix debug flag - If set to 1, for each keypress the scan code is displayed in hex // Matrix debug flag - If set to 1, for each keypress the scan code is displayed in hex
// If set to 2, for each key state change, the scan code is displayed along with the state // If set to 2, for each key state change, the scan code is displayed along with the state
uint8_t matrixDebugMode = 0; uint8_t matrixDebugMode = 0;
@ -111,10 +120,17 @@ uint8_t Matrix_pin( GPIO_Pin gpio, Type type )
{ {
case Type_StrobeOn: case Type_StrobeOn:
*GPIO_PSOR |= (1 << gpio.pin); *GPIO_PSOR |= (1 << gpio.pin);
#ifdef GHOST
*GPIO_PDDR |= (1 << gpio.pin); // output
#endif
break; break;
case Type_StrobeOff: case Type_StrobeOff:
*GPIO_PCOR |= (1 << gpio.pin); *GPIO_PCOR |= (1 << gpio.pin);
#ifdef GHOST
// Ghosting martix needs to put not used (off) strobes in high impedance state
*GPIO_PDDR &= ~(1 << gpio.pin); // input, high Z state
#endif
break; break;
case Type_StrobeSetup: case Type_StrobeSetup:
@ -206,6 +222,11 @@ void Matrix_setup()
Matrix_scanArray[ item ].activeCount = 0; Matrix_scanArray[ item ].activeCount = 0;
Matrix_scanArray[ item ].inactiveCount = DebounceDivThreshold_define; // Start at 'off' steady state Matrix_scanArray[ item ].inactiveCount = DebounceDivThreshold_define; // Start at 'off' steady state
Matrix_scanArray[ item ].prevDecisionTime = 0; Matrix_scanArray[ item ].prevDecisionTime = 0;
#ifdef GHOST
Matrix_ghostArray[ item ].prev = KeyState_Off;
Matrix_ghostArray[ item ].cur = KeyState_Off;
Matrix_ghostArray[ item ].saved = KeyState_Off;
#endif
} }
// Clear scan stats counters // Clear scan stats counters
@ -372,12 +393,14 @@ void Matrix_scan( uint16_t scanNum )
erro_print("Matrix scan bug!! Report me!"); erro_print("Matrix scan bug!! Report me!");
break; break;
} }
// Update decision time // Update decision time
state->prevDecisionTime = currentTime; state->prevDecisionTime = currentTime;
// Send keystate to macro module // Send keystate to macro module
#ifndef GHOST
Macro_keyState( key, state->curState ); Macro_keyState( key, state->curState );
#endif
// Matrix Debug, only if there is a state change // Matrix Debug, only if there is a state change
if ( matrixDebugMode && state->curState != state->prevState ) if ( matrixDebugMode && state->curState != state->prevState )
@ -403,6 +426,101 @@ void Matrix_scan( uint16_t scanNum )
Matrix_pin( Matrix_cols[ strobe ], Type_StrobeOff ); Matrix_pin( Matrix_cols[ strobe ], Type_StrobeOff );
} }
// Matrix ghosting check and elimination
// . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
#ifdef GHOST
// strobe = column, sense = row
// Count (rows) use for columns
//print("C ");
for ( uint8_t col = 0; col < Matrix_colsNum; col++ )
{
uint8_t used = 0;
for ( uint8_t row = 0; row < Matrix_rowsNum; row++ )
{
uint8_t key = Matrix_colsNum * row + col;
KeyState *state = &Matrix_scanArray[ key ];
if ( keyOn(state->curState) )
used++;
}
//printInt8(used);
col_use[col] = used;
col_ghost[col] = 0; // clear
}
// Count (columns) use for rows
//print(" R ");
for ( uint8_t row = 0; row < Matrix_rowsNum; row++ )
{
uint8_t used = 0;
for ( uint8_t col = 0; col < Matrix_colsNum; col++ )
{
uint8_t key = Matrix_colsNum * row + col;
KeyState *state = &Matrix_scanArray[ key ];
if ( keyOn(state->curState) )
used++;
}
//printInt8(used);
row_use[row] = used;
row_ghost[row] = 0; // clear
}
// Check if matrix has ghost
// Happens when key is pressed and some other key is pressed in same row and another in same column
//print(" G ");
for ( uint8_t col = 0; col < Matrix_colsNum; col++ )
{
for ( uint8_t row = 0; row < Matrix_rowsNum; row++ )
{
uint8_t key = Matrix_colsNum * row + col;
KeyState *state = &Matrix_scanArray[ key ];
if ( keyOn(state->curState) && col_use[col] >= 2 && row_use[row] >= 2 )
{
// mark col and row as having ghost
col_ghost[col] = 1;
row_ghost[row] = 1;
//print(" "); printInt8(col); print(","); printInt8(row);
}
}
}
//print( NL );
// Send keys
for ( uint8_t col = 0; col < Matrix_colsNum; col++ )
{
for ( uint8_t row = 0; row < Matrix_rowsNum; row++ )
{
uint8_t key = Matrix_colsNum * row + col;
KeyState *state = &Matrix_scanArray[ key ];
KeyGhost *st = &Matrix_ghostArray[ key ];
// col or row is ghosting (crossed)
uint8_t ghost = (col_ghost[col] > 0 || row_ghost[row] > 0) ? 1 : 0;
st->prev = st->cur; // previous
// save state if no ghost or outside ghosted area
if ( ghost == 0 )
st->saved = state->curState; // save state if no ghost
// final
// use saved state if ghosting, or current if not
st->cur = ghost > 0 ? st->saved : state->curState;
// Send keystate to macro module
KeyPosition k = !st->cur
? (!st->prev ? KeyState_Off : KeyState_Release)
: ( st->prev ? KeyState_Hold : KeyState_Press);
//if (!st->cur && !st->prev) k = KeyState_Off; else
//if ( st->cur && st->prev) k = KeyState_Hold; else
//if ( st->cur && !st->prev) k = KeyState_Press; else
//if (!st->cur && st->prev) k = KeyState_Release;
Macro_keyState( key, k );
}
}
#endif
// . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
// State Table Output Debug // State Table Output Debug
if ( matrixDebugStateCounter > 0 ) if ( matrixDebugStateCounter > 0 )
{ {

10
Scan/MatrixARM/matrix_scan.h
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@ -139,6 +139,16 @@ typedef struct KeyState {
uint8_t prevDecisionTime; uint8_t prevDecisionTime;
} __attribute__((packed)) KeyState; } __attribute__((packed)) KeyState;
// Ghost Element, after ghost detection/cancelation
typedef struct KeyGhost {
KeyPosition prev;
KeyPosition cur;
KeyPosition saved; // state before ghosting
} __attribute__((packed)) KeyGhost;
// utility
inline uint8_t keyOn(/*KeyPosition*/uint8_t st)
{ return (st == KeyState_Press || st == KeyState_Hold) ? 1 : 0; }
// ----- Functions ----- // ----- Functions -----