From 8fa9f67256772984110a6e21f19d6fb8594b804d Mon Sep 17 00:00:00 2001 From: Jeremy Bernhardt Date: Fri, 29 Mar 2019 11:39:28 -0600 Subject: [Keyboard] ErgoTaco Support (#5504) * ErgoTaco support * Update keyboards/ergotaco/ergotaco.h Co-Authored-By: germ * Update keyboards/ergotaco/keymaps/default/keymap.c Co-Authored-By: germ * Update keyboards/ergotaco/keymaps/default/keymap.c Co-Authored-By: germ * Update keyboards/ergotaco/readme.md Co-Authored-By: germ * Update keyboards/ergotaco/readme.md Co-Authored-By: germ * Update keyboards/ergotaco/rules.mk Co-Authored-By: germ * juggling rules.mk * Update keyboards/ergotaco/rules.mk Co-Authored-By: germ * updating IS_COMMAND * learning2english Meme-tastic --Drashna --- keyboards/ergotaco/matrix.c | 366 ++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 366 insertions(+) create mode 100644 keyboards/ergotaco/matrix.c (limited to 'keyboards/ergotaco/matrix.c') diff --git a/keyboards/ergotaco/matrix.c b/keyboards/ergotaco/matrix.c new file mode 100644 index 000000000..e4fd6902f --- /dev/null +++ b/keyboards/ergotaco/matrix.c @@ -0,0 +1,366 @@ +/* +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 + +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 . +*/ + +#include "matrix.h" +#include +#include +#include +#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<> 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<