qmk_firmware/keyboards/evyd13/wasdat/matrix.c
James Young c66df16644
2020 November 28 Breaking Changes Update ()
* Branch point for 2020 November 28 Breaking Change                                                

* Remove matrix_col_t to allow MATRIX_ROWS > 32 ()                                           

* Add support for soft serial to ATmega32U2 ()                                               

* Change MIDI velocity implementation to allow direct control of velocity value ()            

* Add ability to build a subset of all keyboards based on platform.                                

* Actually use eeprom_driver_init().                                                               

* Make bootloader_jump weak for ChibiOS. ()                                                  

* Joystick 16-bit support ()                                                                 

* Per-encoder resolutions ()                                                                 

* Share button state from mousekey to pointing_device ()                                     

* Add hotfix for chibios keyboards not wake ()                                               

* Add advanced/efficient RGB Matrix Indicators ()                                             

* Naming change.                                                                                   

* Support for STM32 GPIOF,G,H,I,J,K ()                                                       

* Add milc as a dependency and remove the installed milc ()                                  

* ChibiOS upgrade: early init conversions ()                                                 

* ChibiOS upgrade: configuration file migrator ()                                             

* Haptic and solenoid cleanup ()                                                              

* XD75 cleanup ()                                                                            

* OLED display update interval support ()                                                    

* Add definition based on currently-selected serial driver. ()                               

* New feature: Retro Tapping per key ()                                                      

* Allow for modification of output RGB values when using rgblight/rgb_matrix. ()             

* Add housekeeping task callbacks so that keyboards/keymaps are capable of executing code for each main loop iteration. ()

* Rescale both ChibiOS and AVR backlighting.                                                       

* Reduce Helix keyboard build variation ()                                                    

* Minor change to behavior allowing display updates to continue between task ticks ()        

* Some GPIO manipulations in matrix.c change to atomic. ()                                   

* qmk cformat ()                                                                             

* [Keyboard] Update the Speedo firmware for v3.0 ()                                          

* Maartenwut/Maarten namechange to evyd13/Evy ()                                             

* [quantum] combine repeated lines of code ()                                                

* Add step sequencer feature ()                                                               

* aeboards/ext65 refactor ()                                                                 

* Refactor xelus/dawn60 for Rev2 later ()                                                    

* add DEBUG_MATRIX_SCAN_RATE_ENABLE to common_features.mk ()                                 

* [Core] Added `add_oneshot_mods` & `del_oneshot_mods` ()                                    

* update chibios os usb for the otg driver ()                                                 

* Remove HD44780 References, Part 4 ()                                                       

* [Keyboard] Add Valor FRL TKL (+refactor) ()                                                

* Fix cursor position bug in oled_write_raw functions ()                                     

* Fixup version.h writing when using SKIP_VERSION=yes ()                                     

* Allow for certain code in the codebase assuming length of string. ()                       

* Add AT90USB support for serial.c ()                                                        

* Auto shift: support repeats and early registration ()                                       

* Rename ledmatrix.h to match .c file ()                                                      

* Split RGB_MATRIX_ENABLE into _ENABLE and _DRIVER ()                                        

* Split LED_MATRIX_ENABLE into _ENABLE and _DRIVER ()                                        

* Merge point for 2020 Nov 28 Breaking Change
2020-11-28 12:02:18 -08:00

345 lines
8.5 KiB
C

/*
Copyright 2012-2018 Jun Wako, Jack Humbert, Yiancar
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include <stdint.h>
#include <stdbool.h>
#include "wait.h"
#include "util.h"
#include "matrix.h"
#include "debounce.h"
#include "quantum.h"
#ifdef DIRECT_PINS
static pin_t direct_pins[MATRIX_ROWS][MATRIX_COLS] = DIRECT_PINS;
#elif (DIODE_DIRECTION == ROW2COL) || (DIODE_DIRECTION == COL2ROW)
static const pin_t row_pins[MATRIX_ROWS] = MATRIX_ROW_PINS;
//static const pin_t col_pins[MATRIX_COLS] = MATRIX_COL_PINS;
#endif
// matrix code
#ifdef DIRECT_PINS
static void init_pins(void) {
for (int row = 0; row < MATRIX_ROWS; row++) {
for (int col = 0; col < MATRIX_COLS; col++) {
pin_t pin = direct_pins[row][col];
if (pin != NO_PIN) {
setPinInputHigh(pin);
}
}
}
}
static bool read_cols_on_row(matrix_row_t current_matrix[], uint8_t current_row) {
matrix_row_t last_row_value = current_matrix[current_row];
current_matrix[current_row] = 0;
for (uint8_t col_index = 0; col_index < MATRIX_COLS; col_index++) {
pin_t pin = direct_pins[current_row][col_index];
if (pin != NO_PIN) {
current_matrix[current_row] |= readPin(pin) ? 0 : (MATRIX_ROW_SHIFTER << col_index);
}
}
return (last_row_value != current_matrix[current_row]);
}
#elif (DIODE_DIRECTION == COL2ROW)
static void select_row(uint8_t row) {
setPinOutput(row_pins[row]);
writePinLow(row_pins[row]);
}
static void unselect_row(uint8_t row) { setPinInputHigh(row_pins[row]); }
static void unselect_rows(void) {
for (uint8_t x = 0; x < MATRIX_ROWS; x++) {
setPinInputHigh(row_pins[x]);
}
}
static void init_pins(void) {
unselect_rows();
for (uint8_t x = 0; x < MATRIX_COLS; x++) {
setPinInputHigh(col_pins[x]);
}
}
static bool read_cols_on_row(matrix_row_t current_matrix[], uint8_t current_row) {
// Store last value of row prior to reading
matrix_row_t last_row_value = current_matrix[current_row];
// Clear data in matrix row
current_matrix[current_row] = 0;
// Select row and wait for row selecton to stabilize
select_row(current_row);
wait_us(30);
// For each col...
for (uint8_t col_index = 0; col_index < MATRIX_COLS; col_index++) {
// Select the col pin to read (active low)
uint8_t pin_state = readPin(col_pins[col_index]);
// Populate the matrix row with the state of the col pin
current_matrix[current_row] |= pin_state ? 0 : (MATRIX_ROW_SHIFTER << col_index);
}
// Unselect row
unselect_row(current_row);
return (last_row_value != current_matrix[current_row]);
}
#elif (DIODE_DIRECTION == ROW2COL)
/* Cols 0 - 15
* col 0: C7
* col 1: B6
* col 2: C6
* col 3: B4
* col 4: B5
* col 5: D7
* These columns use a 74HC237D 3 to 8 bit demultiplexer.
* A0 A1 A2
* col / pin: PD2 PD1 PD0
* 6: 1 1 1
* 7: 0 1 1
* 8: 1 0 1
* 9: 0 0 1
* 10: 1 1 0
* 11: 0 1 0
* 12: 1 0 0
* col 13: D3
* col 14: B7
* col 15: B3
*/
static void select_col(uint8_t col) {
switch (col) {
case 0:
writePinLow(C7);
break;
case 1:
writePinLow(B6);
break;
case 2:
writePinLow(C6);
break;
case 3:
writePinLow(B4);
break;
case 4:
writePinLow(B5);
break;
case 5:
writePinLow(D7);
break;
case 6:
writePinHigh(D0);
writePinHigh(D1);
writePinHigh(D2);
break;
case 7:
writePinHigh(D0);
writePinHigh(D1);
break;
case 8:
writePinHigh(D0);
writePinHigh(D2);
break;
case 9:
writePinHigh(D0);
break;
case 10:
writePinHigh(D1);
writePinHigh(D2);
break;
case 11:
writePinHigh(D1);
break;
case 12:
writePinHigh(D2);
break;
case 13:
writePinLow(D3);
break;
case 14:
writePinLow(B7);
break;
case 15:
writePinLow(B3);
break;
}
}
static void unselect_col(uint8_t col) {
switch (col) {
case 0:
writePinHigh(C7);
break;
case 1:
writePinHigh(B6);
break;
case 2:
writePinHigh(C6);
break;
case 3:
writePinHigh(B4);
break;
case 4:
writePinHigh(B5);
break;
case 5:
writePinHigh(D7);
break;
case 6:
writePinLow(D0);
writePinLow(D1);
writePinLow(D2);
break;
case 7:
writePinLow(D0);
writePinLow(D1);
break;
case 8:
writePinLow(D0);
writePinLow(D2);
break;
case 9:
writePinLow(D0);
break;
case 10:
writePinLow(D1);
writePinLow(D2);
break;
case 11:
writePinLow(D1);
break;
case 12:
writePinLow(D2);
break;
case 13:
writePinHigh(D3);
break;
case 14:
writePinHigh(B7);
break;
case 15:
writePinHigh(B3);
break;
}
}
static void unselect_cols(void) {
//Native
setPinOutput(D3);
setPinOutput(D7);
writePinHigh(D3);
writePinHigh(D7);
setPinOutput(C6);
setPinOutput(C7);
writePinHigh(C6);
writePinHigh(C7);
setPinOutput(B3);
setPinOutput(B4);
setPinOutput(B5);
setPinOutput(B6);
setPinOutput(B7);
writePinHigh(B3);
writePinHigh(B4);
writePinHigh(B5);
writePinHigh(B6);
writePinHigh(B7);
//Demultiplexer
setPinOutput(D0);
setPinOutput(D1);
setPinOutput(D2);
writePinLow(D0);
writePinLow(D1);
writePinLow(D2);
}
static void init_pins(void) {
unselect_cols();
for (uint8_t x = 0; x < MATRIX_ROWS; x++) {
setPinInputHigh(row_pins[x]);
}
}
static bool read_rows_on_col(matrix_row_t current_matrix[], uint8_t current_col) {
bool matrix_changed = false;
// Select col and wait for col selecton to stabilize
select_col(current_col);
wait_us(30);
// For each row...
for (uint8_t row_index = 0; row_index < MATRIX_ROWS; row_index++) {
// Store last value of row prior to reading
matrix_row_t last_row_value = current_matrix[row_index];
// Check row pin state
if (readPin(row_pins[row_index]) == 0) {
// Pin LO, set col bit
current_matrix[row_index] |= (MATRIX_ROW_SHIFTER << current_col);
} else {
// Pin HI, clear col bit
current_matrix[row_index] &= ~(MATRIX_ROW_SHIFTER << current_col);
}
// Determine if the matrix changed state
if ((last_row_value != current_matrix[row_index]) && !(matrix_changed)) {
matrix_changed = true;
}
}
// Unselect col
unselect_col(current_col);
return matrix_changed;
}
#endif
void matrix_init_custom(void) {
// initialize key pins
init_pins();
}
bool matrix_scan_custom(matrix_row_t current_matrix[]) {
bool changed = false;
#if defined(DIRECT_PINS) || (DIODE_DIRECTION == COL2ROW)
// Set row, read cols
for (uint8_t current_row = 0; current_row < MATRIX_ROWS; current_row++) {
changed |= read_cols_on_row(current_matrix, current_row);
}
#elif (DIODE_DIRECTION == ROW2COL)
// Set col, read rows
for (uint8_t current_col = 0; current_col < MATRIX_COLS; current_col++) {
changed |= read_rows_on_col(current_matrix, current_col);
}
#endif
return changed;
}