Convert Wasdat Code custom matrix to SN74x138 driver (#16257)

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Ryan 2022-03-08 10:02:28 +11:00 committed by GitHub
parent e41d67b428
commit 07ca35decf
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4 changed files with 77 additions and 310 deletions

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@ -24,27 +24,28 @@ along with this program. If not, see <http://www.gnu.org/licenses/>.
static const pin_t row_pins[MATRIX_ROWS] = MATRIX_ROW_PINS; static const pin_t row_pins[MATRIX_ROWS] = MATRIX_ROW_PINS;
static const pin_t col_pins[MATRIX_COLS] = MATRIX_COL_PINS; static const pin_t col_pins[MATRIX_COLS] = MATRIX_COL_PINS;
/* col 0: C7 /* Columns 6-12 use a 74HC138 3-to-8 demultiplexer.
* col 1: B6
* col 2: C6
* col 3: B4
* col 4: B5
* col 5: D7
* *
* These columns use a 74HC138 3 to 8 bit demultiplexer. * 0: C7
* A2 A1 A0 * 1: B6
* col / pin: PD0 PD1 PD2 * 2: C6
* 6: 1 1 1 * 3: B4
* 7: 1 1 0 * 4: B5
* 8: 1 0 1 * 5: D7
* 9: 1 0 0
* 10: 0 1 1
* 11: 0 1 0
* 12: 0 0 1
* *
* col 13: D3 * A2 A1 A0
* col 14: B7 * D0 D1 D2
* col 15: B3 * 6: 1 1 1
* 7: 1 1 0
* 8: 1 0 1
* 9: 1 0 0
* 10: 0 1 1
* 11: 0 1 0
* 12: 0 0 1
*
* 13: D3
* 14: B7
* 15: B3
*/ */
static void select_col(uint8_t col) { static void select_col(uint8_t col) {
if (col_pins[col] != NO_PIN) { if (col_pins[col] != NO_PIN) {
@ -117,10 +118,10 @@ static bool read_rows_on_col(matrix_row_t current_matrix[], uint8_t current_col)
} }
void matrix_init_custom(void) { void matrix_init_custom(void) {
// initialize key pins
init_pins();
// initialize demultiplexer // initialize demultiplexer
sn74x138_init(); sn74x138_init();
// initialize key pins
init_pins();
} }
bool matrix_scan_custom(matrix_row_t current_matrix[]) { bool matrix_scan_custom(matrix_row_t current_matrix[]) {

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@ -41,22 +41,17 @@ along with this program. If not, see <http://www.gnu.org/licenses/>.
* *
*/ */
#define MATRIX_ROW_PINS { E6, C7, C6, B6, B5, B4, D7, D6 } #define MATRIX_ROW_PINS { E6, C7, C6, B6, B5, B4, D7, D6 }
#define MATRIX_COL_PINS { } #define MATRIX_COL_PINS { F7, F5, F6, F1, F4, F0, NO_PIN, D5, D3, NO_PIN, NO_PIN, NO_PIN, NO_PIN, NO_PIN, NO_PIN, NO_PIN } // Columns 6 and 9-15 controlled by demux
#define UNUSED_PINS #define UNUSED_PINS
/* COL2ROW, ROW2COL*/ #define SN74X138_ADDRESS_PINS { D2, D1, D0 }
#define DIODE_DIRECTION ROW2COL #define SN74X138_E3_PIN D4
// For QMK DFU // For QMK DFU
#define QMK_ESC_OUTPUT E6 #define QMK_ESC_OUTPUT E6
#define QMK_ESC_INPUT F0 #define QMK_ESC_INPUT F0
#define QMK_LED B1 #define QMK_LED B1
/*
* Split Keyboard specific options, make sure you have 'SPLIT_KEYBOARD = yes' in your rules.mk, and define SOFT_SERIAL_PIN.
*/
//#define SOFT_SERIAL_PIN D0 // or D1, D2, D3, E6
#define LED_NUM_LOCK_PIN B3 #define LED_NUM_LOCK_PIN B3
#define LED_CAPS_LOCK_PIN B1 #define LED_CAPS_LOCK_PIN B1
#define LED_SCROLL_LOCK_PIN B2 #define LED_SCROLL_LOCK_PIN B2

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@ -14,280 +14,70 @@ GNU General Public License for more details.
You should have received a copy of the GNU General Public License You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>. along with this program. If not, see <http://www.gnu.org/licenses/>.
*/ */
#include <stdint.h> #include <stdint.h>
#include <stdbool.h> #include <stdbool.h>
#include "wait.h"
#include "util.h"
#include "matrix.h" #include "matrix.h"
#include "debounce.h"
#include "quantum.h" #include "quantum.h"
#include "sn74x138.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 row_pins[MATRIX_ROWS] = MATRIX_ROW_PINS;
//static const pin_t col_pins[MATRIX_COLS] = MATRIX_COL_PINS; static const pin_t col_pins[MATRIX_COLS] = MATRIX_COL_PINS;
#endif
// matrix code /* Columns 6 and 9-15 use a 74HC138 3-to-8 demultiplexer.
* D4 is the enable pin, must be set high to use it.
#ifdef DIRECT_PINS *
* 0: F7
static void init_pins(void) { * 1: F5
for (int row = 0; row < MATRIX_ROWS; row++) { * 2: F6
for (int col = 0; col < MATRIX_COLS; col++) { * 3: F1
pin_t pin = direct_pins[row][col]; * 4: F4
if (pin != NO_PIN) { * 5: F0
setPinInputHigh(pin); *
} * A2 A1 A0
} * D0 D1 D2
} * 6: 1 1 1
} *
* 7: D5
static bool read_cols_on_row(matrix_row_t current_matrix[], uint8_t current_row) { * 8: D3
matrix_row_t last_row_value = current_matrix[current_row]; *
current_matrix[current_row] = 0; * 9: 1 1 0
* 10: 1 0 1
for (uint8_t col_index = 0; col_index < MATRIX_COLS; col_index++) { * 11: 1 0 0
pin_t pin = direct_pins[current_row][col_index]; * 12: 0 1 1
if (pin != NO_PIN) { * 13: 0 1 0
current_matrix[current_row] |= readPin(pin) ? 0 : (MATRIX_ROW_SHIFTER << col_index); * 14: 0 0 1
} * 15: 0 0 0
}
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: F7
* col 1: F5
* col 2: F6
* col 3: F1
* col 4: F4
* col 5: F0
* These columns use a 74HC237D 3 to 8 bit demultiplexer. D4 is the enable pin, must be set high to use it.
* A0 A1 A2
* col / pin: PD2 PD1 PD0
* 6: 1 1 1
* col 7: D3
* col 8: B7
* 9: 0 1 1
* 10: 1 0 1
* 11: 0 0 1
* 12: 1 1 0
* 13: 0 1 0
* 14: 1 0 0
* 15: 0 0 0
*/ */
static void select_col(uint8_t col) { static void select_col(uint8_t col) {
switch (col) { if (col_pins[col] != NO_PIN) {
case 0: writePinLow(col_pins[col]);
writePinLow(F7); } else {
break; sn74x138_set_addr((col == 6) ? 7 : 15 - col);
case 1: sn74x138_set_enabled(true);
writePinLow(F5);
break;
case 2:
writePinLow(F6);
break;
case 3:
writePinLow(F1);
break;
case 4:
writePinLow(F4);
break;
case 5:
writePinLow(F0);
break;
case 6:
writePinHigh(D4);
writePinHigh(D2);
writePinHigh(D1);
writePinHigh(D0);
break;
case 7:
writePinLow(D5);
break;
case 8:
writePinLow(D3);
break;
case 9:
writePinHigh(D4);
writePinHigh(D1);
writePinHigh(D0);
break;
case 10:
writePinHigh(D4);
writePinHigh(D2);
writePinHigh(D0);
break;
case 11:
writePinHigh(D4);
writePinHigh(D0);
break;
case 12:
writePinHigh(D4);
writePinHigh(D2);
writePinHigh(D1);
break;
case 13:
writePinHigh(D4);
writePinHigh(D1);
break;
case 14:
writePinHigh(D4);
writePinHigh(D2);
break;
case 15:
writePinHigh(D4);
break;
} }
} }
static void unselect_col(uint8_t col) { static void unselect_col(uint8_t col) {
switch (col) { if (col_pins[col] != NO_PIN) {
case 0: setPinOutput(col_pins[col]);
writePinHigh(F7); writePinHigh(col_pins[col]);
break; } else {
case 1: sn74x138_set_enabled(false);
writePinHigh(F5);
break;
case 2:
writePinHigh(F6);
break;
case 3:
writePinHigh(F1);
break;
case 4:
writePinHigh(F4);
break;
case 5:
writePinHigh(F0);
break;
case 6:
writePinLow(D4);
writePinLow(D2);
writePinLow(D1);
writePinLow(D0);
break;
case 7:
writePinHigh(D5);
break;
case 8:
writePinHigh(D3);
break;
case 9:
writePinLow(D4);
writePinLow(D2);
writePinLow(D1);
writePinLow(D0);
break;
case 10:
writePinLow(D4);
writePinLow(D2);
writePinLow(D1);
writePinLow(D0);
break;
case 11:
writePinLow(D4);
writePinLow(D2);
writePinLow(D1);
writePinLow(D0);
break;
case 12:
writePinLow(D4);
writePinLow(D2);
writePinLow(D1);
writePinLow(D0);
break;
case 13:
writePinLow(D4);
writePinLow(D2);
writePinLow(D1);
writePinLow(D0);
break;
case 14:
writePinLow(D4);
writePinLow(D2);
writePinLow(D1);
writePinLow(D0);
break;
case 15:
writePinLow(D4);
writePinLow(D2);
writePinLow(D1);
writePinLow(D0);
break;
} }
} }
static void unselect_cols(void) { static void unselect_cols(void) {
//Native // Native
writePinHigh(F7); for (uint8_t x = 0; x < MATRIX_COLS; x++) {
writePinHigh(F5); if (col_pins[x] != NO_PIN) {
writePinHigh(F6); setPinOutput(col_pins[x]);
writePinHigh(F1); writePinHigh(col_pins[x]);
writePinHigh(F4); }
writePinHigh(F0); }
writePinHigh(D3);
writePinHigh(D5);
//Demultiplexer // Demultiplexer
writePinLow(D4); sn74x138_set_enabled(false);
writePinLow(D2);
writePinLow(D1);
writePinLow(D0);
} }
static void init_pins(void) { static void init_pins(void) {
@ -295,27 +85,14 @@ static void init_pins(void) {
for (uint8_t x = 0; x < MATRIX_ROWS; x++) { for (uint8_t x = 0; x < MATRIX_ROWS; x++) {
setPinInputHigh(row_pins[x]); setPinInputHigh(row_pins[x]);
} }
setPinOutput(D0);
setPinOutput(D1);
setPinOutput(D2);
setPinOutput(D3);
setPinOutput(F7);
setPinOutput(F5);
setPinOutput(F6);
setPinOutput(F1);
setPinOutput(F4);
setPinOutput(F0);
setPinOutput(D3);
setPinOutput(D5);
setPinOutput(D4);
} }
static bool read_rows_on_col(matrix_row_t current_matrix[], uint8_t current_col) { static bool read_rows_on_col(matrix_row_t current_matrix[], uint8_t current_col) {
bool matrix_changed = false; bool matrix_changed = false;
// Select col and wait for col selecton to stabilize // Select col and wait for col selection to stabilize
select_col(current_col); select_col(current_col);
wait_us(30); matrix_io_delay();
// For each row... // For each row...
for (uint8_t row_index = 0; row_index < MATRIX_ROWS; row_index++) { for (uint8_t row_index = 0; row_index < MATRIX_ROWS; row_index++) {
@ -343,9 +120,9 @@ static bool read_rows_on_col(matrix_row_t current_matrix[], uint8_t current_col)
return matrix_changed; return matrix_changed;
} }
#endif
void matrix_init_custom(void) { void matrix_init_custom(void) {
// initialize demultiplexer
sn74x138_init();
// initialize key pins // initialize key pins
init_pins(); init_pins();
} }
@ -353,17 +130,10 @@ void matrix_init_custom(void) {
bool matrix_scan_custom(matrix_row_t current_matrix[]) { bool matrix_scan_custom(matrix_row_t current_matrix[]) {
bool changed = false; 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 // Set col, read rows
for (uint8_t current_col = 0; current_col < MATRIX_COLS; current_col++) { for (uint8_t current_col = 0; current_col < MATRIX_COLS; current_col++) {
changed |= read_rows_on_col(current_matrix, current_col); changed |= read_rows_on_col(current_matrix, current_col);
} }
#endif
return changed; return changed;
} }

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@ -18,6 +18,7 @@ RGBLIGHT_ENABLE = no # Enable keyboard RGB underglow
AUDIO_ENABLE = no # Audio output AUDIO_ENABLE = no # Audio output
CUSTOM_MATRIX = lite CUSTOM_MATRIX = lite
SRC += matrix.c VPATH += drivers/gpio
SRC += matrix.c sn74x138.c
LAYOUTS = fullsize_ansi fullsize_iso tkl_ansi tkl_iso LAYOUTS = fullsize_ansi fullsize_iso tkl_ansi tkl_iso