+++ /dev/null
-#include <stdint.h>
-#include <stdbool.h>
-#include <avr/io.h>
-#include "wait.h"
-#include "action_layer.h"
-#include "print.h"
-#include "debug.h"
-#include "util.h"
-#include "matrix.h"
-#include "ergodone.h"
-#include "expander.h"
-#ifdef DEBUG_MATRIX_SCAN_RATE
-#include "timer.h"
-#endif
-
-/*
- * This constant define not debouncing time in msecs, but amount of matrix
- * scan loops which should be made to get stable debounced results.
- *
- * On Ergodox matrix scan rate is relatively low, because of slow I2C.
- * Now it's only 317 scans/second, or about 3.15 msec/scan.
- * According to Cherry specs, debouncing time is 5 msec.
- *
- * And so, there is no sense to have DEBOUNCE higher than 2.
- */
-
-#ifndef DEBOUNCE
-# define DEBOUNCE 5
-#endif
-
-/* matrix state(1:on, 0:off) */
-static matrix_row_t matrix[MATRIX_ROWS];
-
-// Debouncing: store for each key the number of scans until it's eligible to
-// change. When scanning the matrix, ignore any changes in keys that have
-// already changed in the last DEBOUNCE scans.
-static uint8_t debounce_matrix[MATRIX_ROWS * MATRIX_COLS];
-
-static matrix_row_t read_cols(uint8_t row);
-static void init_cols(void);
-static void unselect_rows(void);
-static void select_row(uint8_t row);
-
-#ifdef DEBUG_MATRIX_SCAN_RATE
-uint32_t matrix_timer;
-uint32_t matrix_scan_count;
-#endif
-
-
-__attribute__ ((weak))
-void matrix_init_user(void) {}
-
-__attribute__ ((weak))
-void matrix_scan_user(void) {}
-
-__attribute__ ((weak))
-void matrix_init_kb(void) {
- matrix_init_user();
-}
-
-__attribute__ ((weak))
-void matrix_scan_kb(void) {
- matrix_scan_user();
-}
-
-inline
-uint8_t matrix_rows(void)
-{
- return MATRIX_ROWS;
-}
-
-inline
-uint8_t matrix_cols(void)
-{
- return MATRIX_COLS;
-}
-
-void matrix_init(void)
-{
- // disable JTAG
- MCUCR = (1<<JTD);
- MCUCR = (1<<JTD);
-
- unselect_rows();
- init_cols();
-
- // initialize matrix state: all keys off
- for (uint8_t i=0; i < MATRIX_ROWS; i++) {
- matrix[i] = 0;
- for (uint8_t j=0; j < MATRIX_COLS; ++j) {
- debounce_matrix[i * MATRIX_COLS + j] = 0;
- }
- }
-
-#ifdef DEBUG_MATRIX_SCAN_RATE
- matrix_timer = timer_read32();
- matrix_scan_count = 0;
-#endif
-
- matrix_init_quantum();
-
-}
-
-void matrix_power_up(void) {
- unselect_rows();
- init_cols();
-
- // initialize matrix state: all keys off
- for (uint8_t i=0; i < MATRIX_ROWS; i++) {
- matrix[i] = 0;
- }
-
-#ifdef DEBUG_MATRIX_SCAN_RATE
- matrix_timer = timer_read32();
- matrix_scan_count = 0;
-#endif
-}
-
-// Returns a matrix_row_t whose bits are set if the corresponding key should be
-// eligible to change in this scan.
-matrix_row_t debounce_mask(uint8_t row) {
- matrix_row_t result = 0;
- for (uint8_t j=0; j < MATRIX_COLS; ++j) {
- if (debounce_matrix[row * MATRIX_COLS + j]) {
- --debounce_matrix[row * MATRIX_COLS + j];
- } else {
- result |= (1 << j);
- }
- }
- return result;
-}
-
-// Report changed keys in the given row. Resets the debounce countdowns
-// corresponding to each set bit in 'change' to DEBOUNCE.
-void debounce_report(matrix_row_t change, uint8_t row) {
- for (uint8_t i = 0; i < MATRIX_COLS; ++i) {
- if (change & (1 << i)) {
- debounce_matrix[row * MATRIX_COLS + i] = DEBOUNCE;
- }
- }
-}
-
-uint8_t matrix_scan(void)
-{
- expander_scan();
-
-#ifdef DEBUG_MATRIX_SCAN_RATE
- matrix_scan_count++;
-
- uint32_t timer_now = timer_read32();
- if (TIMER_DIFF_32(timer_now, matrix_timer)>1000) {
- print("matrix scan frequency: ");
- pdec(matrix_scan_count);
- print("\n");
- matrix_print();
-
- matrix_timer = timer_now;
- matrix_scan_count = 0;
- }
-#endif
-
- for (uint8_t i = 0; i < MATRIX_ROWS; i++) {
- select_row(i);
- wait_us(30); // without this wait read unstable value.
- matrix_row_t mask = debounce_mask(i);
- matrix_row_t cols = (read_cols(i) & mask) | (matrix[i] & ~mask);
- debounce_report(cols ^ matrix[i], i);
- matrix[i] = cols;
-
- unselect_rows();
- }
-
- matrix_scan_quantum();
-
- return 1;
-}
-
-inline
-bool matrix_is_on(uint8_t row, uint8_t col)
-{
- return (matrix[row] & ((matrix_row_t)1<<col));
-}
-
-inline
-matrix_row_t matrix_get_row(uint8_t row)
-{
- return matrix[row];
-}
-
-void matrix_print(void)
-{
- print("\nr/c 0123456789ABCDEF\n");
- for (uint8_t row = 0; row < MATRIX_ROWS; row++) {
- phex(row); print(": ");
- pbin_reverse16(matrix_get_row(row));
- print("\n");
- }
-}
-
-uint8_t matrix_key_count(void)
-{
- uint8_t count = 0;
- for (uint8_t i = 0; i < MATRIX_ROWS; i++) {
- count += bitpop16(matrix[i]);
- }
- return count;
-}
-
-/* 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
- DDRE &= ~(1<<PE6);
- PORTE |= (1<<PE6);
- DDRD &= ~(1<<PD2 | 1<<PD3 | 1<<PD4 | 1<<PD7);
- PORTD |= (1<<PD2 | 1<<PD3 | 1<<PD4 | 1<<PD7);
- DDRC &= ~(1<<PC6);
- PORTC |= (1<<PC6);
- DDRB &= ~(1<<PB4);
- PORTB |= (1<<PB4);
-
- // MCP23017
- expander_init();
-}
-
-static matrix_row_t read_cols(uint8_t row)
-{
- return expander_read_row() |
- (PIND&(1<<PD3) ? 0 : (1<<6)) |
- (PIND&(1<<PD2) ? 0 : (1<<5)) |
- (PIND&(1<<PD4) ? 0 : (1<<4)) |
- (PINC&(1<<PC6) ? 0 : (1<<3)) |
- (PIND&(1<<PD7) ? 0 : (1<<2)) |
- (PINE&(1<<PE6) ? 0 : (1<<1)) |
- (PINB&(1<<PB4) ? 0 : (1<<0)) ;
-}
-
-/* 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
- DDRF &= ~(1<<PF4 | 1<<PF5 | 1<<PF6 | 1<<PF7);
- PORTF &= ~(1<<PF4 | 1<<PF5 | 1<<PF6 | 1<<PF7);
- DDRB &= ~(1<<PB1 | 1<<PB2);
- PORTB &= ~(1<<PB1 | 1<<PB2);
-
- // Expander
- expander_unselect_rows();
-}
-
-static void select_row(uint8_t row)
-{
- // Pro Micro
- switch (row) {
- case 0:
- DDRF |= (1<<PF4);
- PORTF &= ~(1<<PF4);
- break;
- case 1:
- DDRF |= (1<<PF5);
- PORTF &= ~(1<<PF5);
- break;
- case 2:
- DDRF |= (1<<PF6);
- PORTF &= ~(1<<PF6);
- break;
- case 3:
- DDRF |= (1<<PF7);
- PORTF &= ~(1<<PF7);
- break;
- case 4:
- DDRB |= (1<<PB1);
- PORTB &= ~(1<<PB1);
- break;
- case 5:
- DDRB |= (1<<PB2);
- PORTB &= ~(1<<PB2);
- break;
- }
-
- expander_select_row(row);
-}
-
projects / qmk_firmware.git / blobdiff