You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
367 lines
9.5 KiB
367 lines
9.5 KiB
/*
|
|
Note for ErgoDox EZ customizers: Here be dragons!
|
|
This is not a file you want to be messing with.
|
|
All of the interesting stuff for you is under keymaps/ :)
|
|
Love, Erez
|
|
|
|
Copyright 2013 Oleg Kostyuk <cub.uanic@gmail.com>
|
|
|
|
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 "matrix.h"
|
|
#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 QMK_KEYBOARD_H
|
|
#ifdef DEBUG_MATRIX_SCAN_RATE
|
|
#include "timer.h"
|
|
#endif
|
|
|
|
#ifndef DEBOUNCE
|
|
# define DEBOUNCE 5
|
|
#endif
|
|
|
|
// ATmega pin defs
|
|
#define ROW1 (1<<5)
|
|
#define COL6 (1<<0)
|
|
#define COL7 (1<<1)
|
|
#define COL8 (1<<2)
|
|
#define COL9 (1<<3)
|
|
#define COL10 (1<<2)
|
|
#define COL11 (1<<3)
|
|
|
|
|
|
// bit masks
|
|
#define BMASK (COL7 | COL8 | COL9 | COL6)
|
|
#define DMASK (COL10 | COL11)
|
|
#define FMASK (ROW1)
|
|
|
|
/* matrix state(1:on, 0:off) */
|
|
static matrix_row_t matrix[MATRIX_ROWS];
|
|
/*
|
|
* matrix state(1:on, 0:off)
|
|
* contains the raw values without debounce filtering of the last read cycle.
|
|
*/
|
|
static matrix_row_t raw_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);
|
|
|
|
static uint8_t mcp23018_reset_loop;
|
|
// static uint16_t mcp23018_reset_loop;
|
|
|
|
#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)
|
|
{
|
|
// initialize row and col
|
|
mcp23018_status = init_mcp23018();
|
|
unselect_rows();
|
|
init_cols();
|
|
|
|
// initialize matrix state: all keys off
|
|
for (uint8_t i=0; i < MATRIX_ROWS; i++) {
|
|
matrix[i] = 0;
|
|
raw_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) {
|
|
mcp23018_status = init_mcp23018();
|
|
|
|
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(matrix_row_t rawcols, uint8_t row) {
|
|
matrix_row_t result = 0;
|
|
matrix_row_t change = rawcols ^ raw_matrix[row];
|
|
raw_matrix[row] = rawcols;
|
|
for (uint8_t i = 0; i < MATRIX_COLS; ++i) {
|
|
if (debounce_matrix[row * MATRIX_COLS + i]) {
|
|
--debounce_matrix[row * MATRIX_COLS + i];
|
|
} else {
|
|
result |= (1 << i);
|
|
}
|
|
if (change & (1 << i)) {
|
|
debounce_matrix[row * MATRIX_COLS + i] = DEBOUNCE;
|
|
}
|
|
}
|
|
return result;
|
|
}
|
|
|
|
matrix_row_t debounce_read_cols(uint8_t row) {
|
|
// Read the row without debouncing filtering and store it for later usage.
|
|
matrix_row_t cols = read_cols(row);
|
|
// Get the Debounce mask.
|
|
matrix_row_t mask = debounce_mask(cols, row);
|
|
// debounce the row and return the result.
|
|
return (cols & mask) | (matrix[row] & ~mask);;
|
|
}
|
|
|
|
uint8_t matrix_scan(void)
|
|
{
|
|
// Then the keyboard
|
|
if (mcp23018_status) { // if there was an error
|
|
if (++mcp23018_reset_loop == 0) {
|
|
// if (++mcp23018_reset_loop >= 1300) {
|
|
// since mcp23018_reset_loop is 8 bit - we'll try to reset once in 255 matrix scans
|
|
// this will be approx bit more frequent than once per second
|
|
print("trying to reset mcp23018\n");
|
|
mcp23018_status = init_mcp23018();
|
|
if (mcp23018_status) {
|
|
print("left side not responding\n");
|
|
} else {
|
|
print("left side attached\n");
|
|
}
|
|
}
|
|
}
|
|
|
|
#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_timer = timer_now;
|
|
matrix_scan_count = 0;
|
|
}
|
|
#endif
|
|
for (uint8_t i = 0; i < MATRIX_ROWS_PER_SIDE; i++) {
|
|
select_row(i);
|
|
// and select on left hand
|
|
select_row(i + MATRIX_ROWS_PER_SIDE);
|
|
// we don't need a 30us delay anymore, because selecting a
|
|
// left-hand row requires more than 30us for i2c.
|
|
|
|
// grab cols from left hand
|
|
matrix[i] = debounce_read_cols(i);
|
|
// grab cols from right hand
|
|
matrix[i + MATRIX_ROWS_PER_SIDE] = debounce_read_cols(i + MATRIX_ROWS_PER_SIDE);
|
|
|
|
unselect_rows();
|
|
}
|
|
|
|
matrix_scan_quantum();
|
|
|
|
#ifdef DEBUG_MATRIX
|
|
for (uint8_t c = 0; c < MATRIX_COLS; c++)
|
|
for (uint8_t r = 0; r < MATRIX_ROWS; r++)
|
|
if (matrix_is_on(r, c)) xprintf("r:%d c:%d \n", r, c);
|
|
#endif
|
|
|
|
return 1;
|
|
}
|
|
|
|
bool matrix_is_modified(void) // deprecated and evidently not called.
|
|
{
|
|
return true;
|
|
}
|
|
|
|
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;
|
|
}
|
|
|
|
// Remember this means ROWS
|
|
static void init_cols(void)
|
|
{
|
|
// init on mcp23018
|
|
// not needed, already done as part of init_mcp23018()
|
|
|
|
// Input with pull-up(DDR:0, PORT:1)
|
|
DDRF &= ~FMASK;
|
|
PORTF |= FMASK;
|
|
}
|
|
|
|
static matrix_row_t read_cols(uint8_t row)
|
|
{
|
|
if (row < 6) {
|
|
if (mcp23018_status) { // if there was an error
|
|
return 0;
|
|
} else {
|
|
uint8_t data = 0;
|
|
mcp23018_status = i2c_start(I2C_ADDR_WRITE, ERGODOX_EZ_I2C_TIMEOUT); if (mcp23018_status) goto out;
|
|
mcp23018_status = i2c_write(GPIOB, ERGODOX_EZ_I2C_TIMEOUT); if (mcp23018_status) goto out;
|
|
mcp23018_status = i2c_start(I2C_ADDR_READ, ERGODOX_EZ_I2C_TIMEOUT); if (mcp23018_status) goto out;
|
|
mcp23018_status = i2c_read_nack(ERGODOX_EZ_I2C_TIMEOUT); if (mcp23018_status < 0) goto out;
|
|
data = (~((uint8_t)mcp23018_status) >> 2) & 0x01 ;
|
|
mcp23018_status = I2C_STATUS_SUCCESS;
|
|
out:
|
|
i2c_stop();
|
|
|
|
#ifdef DEBUG_MATRIX
|
|
if (data != 0x00) xprintf("I2C: %d\n", data);
|
|
#endif
|
|
return data;
|
|
}
|
|
} else {
|
|
// Read using bitmask
|
|
return ~((((PINF & ROW1) >> 5)) & 0x1);
|
|
}
|
|
}
|
|
|
|
// Row pin configuration
|
|
static void unselect_rows(void)
|
|
{
|
|
// no need to unselect on mcp23018, because the select step sets all
|
|
// the other row bits high, and it's not changing to a different
|
|
// direction
|
|
// Hi-Z(DDR:0, PORT:0) to unselect
|
|
DDRB &= ~BMASK;
|
|
PORTB &= ~BMASK;
|
|
DDRD &= ~DMASK;
|
|
PORTD &= ~DMASK;
|
|
}
|
|
|
|
static void select_row(uint8_t row)
|
|
{
|
|
if (row < 6) {
|
|
// select on mcp23018
|
|
if (mcp23018_status) { // do nothing on error
|
|
// Read using bitmask
|
|
} else { // set active row low : 0 // set other rows hi-Z : 1
|
|
mcp23018_status = i2c_start(I2C_ADDR_WRITE, ERGODOX_EZ_I2C_TIMEOUT); if (mcp23018_status) goto out;
|
|
mcp23018_status = i2c_write(GPIOA, ERGODOX_EZ_I2C_TIMEOUT); if (mcp23018_status) goto out;
|
|
mcp23018_status = i2c_write(~(1<<row), ERGODOX_EZ_I2C_TIMEOUT); if (mcp23018_status) goto out;
|
|
out:
|
|
i2c_stop();
|
|
}
|
|
} else {
|
|
// Output low(DDR:1, PORT:0) to select
|
|
switch (row) {
|
|
case 6:
|
|
DDRB |= COL6;
|
|
PORTB &= ~COL6;
|
|
break;
|
|
case 7:
|
|
DDRB |= COL7;
|
|
PORTB &= ~COL7;
|
|
break;
|
|
case 8:
|
|
DDRB |= COL8;
|
|
PORTB &= ~COL8;
|
|
break;
|
|
case 9:
|
|
DDRB |= COL9;
|
|
PORTB &= ~COL9;
|
|
break;
|
|
case 10:
|
|
DDRD |= COL10;
|
|
PORTD &= ~COL10;
|
|
break;
|
|
case 11:
|
|
DDRD |= COL11;
|
|
PORTD &= ~COL11;
|
|
break;
|
|
}
|
|
}
|
|
}
|