diff options
Diffstat (limited to 'keyboards/ktec/ergodone/matrix.c')
| -rw-r--r-- | keyboards/ktec/ergodone/matrix.c | 235 |
1 files changed, 0 insertions, 235 deletions
diff --git a/keyboards/ktec/ergodone/matrix.c b/keyboards/ktec/ergodone/matrix.c deleted file mode 100644 index cb845db1bc..0000000000 --- a/keyboards/ktec/ergodone/matrix.c +++ /dev/null @@ -1,235 +0,0 @@ -// Copyright 2022 QMK -// SPDX-License-Identifier: GPL-2.0-or-later - -#include "gpio.h" -#include "matrix.h" -#include "mcp23018.h" -#include "util.h" -#include "wait.h" -#include "debug.h" - -#define I2C_ADDR 0x20 - -static uint8_t mcp23018_errors = 0; - -static void expander_init(void) { - mcp23018_init(I2C_ADDR); -} - -static void expander_init_cols(void) { - mcp23018_errors += !mcp23018_set_config(I2C_ADDR, mcp23018_PORTA, ALL_INPUT); - mcp23018_errors += !mcp23018_set_config(I2C_ADDR, mcp23018_PORTB, ALL_INPUT); -} - -static void expander_select_row(uint8_t row) { - if (mcp23018_errors) { - // wait to mimic i2c interactions - wait_us(100); - return; - } - - mcp23018_errors += !mcp23018_set_config(I2C_ADDR, mcp23018_PORTB, ~(1 << (row + 1))); -} - -static void expander_unselect_row(uint8_t row) { - // No need to unselect row as the next `select_row` will blank everything anyway -} - -static void expander_unselect_rows(void) { - if (mcp23018_errors) { - return; - } - - mcp23018_errors += !mcp23018_set_config(I2C_ADDR, mcp23018_PORTB, ALL_INPUT); -} - -static matrix_row_t expander_read_row(void) { - if (mcp23018_errors) { - return 0; - } - - uint8_t ret = 0xFF; - mcp23018_errors += !mcp23018_readPins(I2C_ADDR, mcp23018_PORTA, &ret); - - ret = bitrev(~ret); - ret = ((ret & 0b11111000) >> 1) | (ret & 0b00000011); - - return ((uint16_t)ret) << 7; -} - -static void expander_scan(void) { - if (!mcp23018_errors) { - return; - } - - static uint16_t mcp23018_reset_loop = 0; - if (++mcp23018_reset_loop > 0x1FFF) { - // tuned to about 5s given the current scan rate - dprintf("trying to reset mcp23018\n"); - mcp23018_reset_loop = 0; - mcp23018_errors = 0; - expander_unselect_rows(); - expander_init_cols(); - } -} - -/* Column pin configuration - * - * Pro Micro: 6 5 4 3 2 1 0 - * PD3 PD2 PD4 PC6 PD7 PE6 PB4 - * - * Expander: 13 12 11 10 9 8 7 - */ -static void init_cols(void) { - // Pro Micro - setPinInputHigh(E6); - setPinInputHigh(D2); - setPinInputHigh(D3); - setPinInputHigh(D4); - setPinInputHigh(D7); - setPinInputHigh(C6); - setPinInputHigh(B4); - - // Expander - expander_init_cols(); -} - -static matrix_row_t read_cols(void) { - // clang-format off - return expander_read_row() | - (readPin(D3) ? 0 : (1<<6)) | - (readPin(D2) ? 0 : (1<<5)) | - (readPin(D4) ? 0 : (1<<4)) | - (readPin(C6) ? 0 : (1<<3)) | - (readPin(D7) ? 0 : (1<<2)) | - (readPin(E6) ? 0 : (1<<1)) | - (readPin(B4) ? 0 : (1<<0)) ; - // clang-format on -} - -/* Row pin configuration - * - * Pro Micro: 0 1 2 3 4 5 - * F4 F5 F6 F7 B1 B2 - * - * Expander: 0 1 2 3 4 5 - */ -static void unselect_rows(void) { - // Pro Micro - setPinInput(B1); - setPinInput(B2); - setPinInput(F4); - setPinInput(F5); - setPinInput(F6); - setPinInput(F7); - writePinLow(B1); - writePinLow(B2); - writePinLow(F4); - writePinLow(F5); - writePinLow(F6); - writePinLow(F7); - - // Expander - expander_unselect_rows(); -} - -static void unselect_row(uint8_t row) { - // Pro Micro - switch (row) { - case 0: - setPinInput(F4); - writePinLow(F4); - break; - case 1: - setPinInput(F5); - writePinLow(F5); - break; - case 2: - setPinInput(F6); - writePinLow(F6); - break; - case 3: - setPinInput(F7); - writePinLow(F7); - break; - case 4: - setPinInput(B1); - writePinLow(B1); - break; - case 5: - setPinInput(B2); - writePinLow(B2); - break; - } - - // Expander - expander_unselect_row(row); -} - -static void select_row(uint8_t row) { - // Pro Micro - switch (row) { - case 0: - setPinOutput(F4); - writePinLow(F4); - break; - case 1: - setPinOutput(F5); - writePinLow(F5); - break; - case 2: - setPinOutput(F6); - writePinLow(F6); - break; - case 3: - setPinOutput(F7); - writePinLow(F7); - break; - case 4: - setPinOutput(B1); - writePinLow(B1); - break; - case 5: - setPinOutput(B2); - writePinLow(B2); - break; - } - - // Expander - expander_select_row(row); -} - -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 selection to stabilize - select_row(current_row); - // Skip the wait_us(30); as i2c is slow enough to debounce the io changes - - current_matrix[current_row] = read_cols(); - - unselect_row(current_row); - - return (last_row_value != current_matrix[current_row]); -} - -void matrix_init_custom(void) { - expander_init(); - - unselect_rows(); - init_cols(); -} - -bool matrix_scan_custom(matrix_row_t current_matrix[]) { - expander_scan(); - - bool changed = false; - for (uint8_t current_row = 0; current_row < MATRIX_ROWS; current_row++) { - changed |= read_cols_on_row(current_matrix, current_row); - } - return changed; -} |