mirror of
https://github.com/qmk/qmk_firmware.git
synced 2024-12-05 01:15:19 +00:00
177 lines
4.8 KiB
C
177 lines
4.8 KiB
C
/*
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Copyright 2018 Massdrop Inc.
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "alt.h"
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#include "d51_util.h"
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#include "debug.h"
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#include "clks.h"
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#include <string.h>
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matrix_row_t mlatest[MATRIX_ROWS];
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matrix_row_t mlast[MATRIX_ROWS];
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matrix_row_t mdebounced[MATRIX_ROWS];
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uint8_t row_ports[] = { MATRIX_ROW_PORTS };
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uint8_t row_pins[] = { MATRIX_ROW_PINS };
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uint8_t col_ports[] = { MATRIX_COL_PORTS };
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uint8_t col_pins[] = { MATRIX_COL_PINS };
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uint32_t row_masks[2]; //NOTE: If more than PA PB used in the future, adjust code to accomodate
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__attribute__ ((weak))
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void matrix_init_kb(void) {
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matrix_init_user();
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}
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__attribute__ ((weak))
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void matrix_scan_kb(void) {
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matrix_scan_user();
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}
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__attribute__ ((weak))
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void matrix_init_user(void) {
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}
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__attribute__ ((weak))
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void matrix_scan_user(void) {
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}
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void matrix_init(void)
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{
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memset(mlatest, 0, MATRIX_ROWS * sizeof(matrix_row_t));
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memset(mlast, 0, MATRIX_ROWS * sizeof(matrix_row_t));
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memset(mdebounced, 0, MATRIX_ROWS * sizeof(matrix_row_t));
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row_masks[PA] = 0;
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row_masks[PB] = 0;
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uint8_t row;
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for (row = 0; row < MATRIX_ROWS; row++)
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{
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PORT->Group[row_ports[row]].DIRCLR.reg = 1 << row_pins[row]; //Input
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PORT->Group[row_ports[row]].OUTCLR.reg = 1 << row_pins[row]; //Low
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PORT->Group[row_ports[row]].PINCFG[row_pins[row]].bit.INEN = 1; //Input Enable,
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PORT->Group[row_ports[row]].PINCFG[row_pins[row]].bit.PULLEN = 1; //Pull Enable
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row_masks[row_ports[row]] |= 1 << row_pins[row]; //Add pin to proper row mask
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}
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uint8_t col;
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for (col = 0; col < MATRIX_COLS; col++)
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{
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PORT->Group[col_ports[col]].DIRSET.reg = 1 << col_pins[col]; //Output
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PORT->Group[col_ports[col]].OUTCLR.reg = 1 << col_pins[col]; //Low
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}
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matrix_init_quantum();
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}
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uint64_t mdebouncing = 0;
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uint8_t matrix_scan(void)
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{
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uint8_t mchanged;
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uint8_t row;
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uint8_t col;
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uint32_t scans[2]; //PA PB
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if (timer_read64() < mdebouncing) return 1; //mdebouncing == 0 when no debouncing active
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memset(mlatest, 0, MATRIX_ROWS * sizeof(matrix_row_t)); //Zero the result buffer
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for (col = 0; col < MATRIX_COLS; col++)
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{
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PORT->Group[col_ports[col]].OUTSET.reg = 1 << col_pins[col]; //Set col output
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wait_us(1); //Delay for output
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scans[PA] = PORT->Group[PA].IN.reg & row_masks[PA]; //Read PA row pins data
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scans[PB] = PORT->Group[PB].IN.reg & row_masks[PB]; //Read PB row pins data
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PORT->Group[col_ports[col]].OUTCLR.reg = 1 << col_pins[col]; //Clear col output
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for (row = 0; row < MATRIX_ROWS; row++)
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{
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//Move scan bits from scans array into proper row bit locations
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if (scans[row_ports[row]] & (1 << row_pins[row]))
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mlatest[row] |= 1 << col;
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}
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}
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mchanged = 0; //Default to no matrix change since last
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for (row = 0; row < MATRIX_ROWS; row++)
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{
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if (mlast[row] != mlatest[row])
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mchanged = 1;
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mlast[row] = mlatest[row];
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}
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if (!mchanged)
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{
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for (row = 0; row < MATRIX_ROWS; row++)
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mdebounced[row] = mlatest[row];
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mdebouncing = 0;
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}
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else
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{
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//Begin or extend debounce on change
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mdebouncing = timer_read64() + DEBOUNCE;
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}
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matrix_scan_quantum();
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return 1;
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}
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matrix_row_t matrix_get_row(uint8_t row)
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{
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return mdebounced[row];
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}
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void matrix_print(void)
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{
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char buf[(MATRIX_COLS+8)*(MATRIX_ROWS+1)] = "R C";
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char *pbuf = buf+3;
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uint32_t cols;
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uint32_t rows;
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matrix_row_t row;
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for (cols = 1; cols <= MATRIX_COLS; cols++)
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{
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*pbuf = (cols%10)+48;
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pbuf++;
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}
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*pbuf = '\r'; pbuf++;
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*pbuf = '\n'; pbuf++;
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for (rows = 1; rows <= MATRIX_ROWS; rows++)
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{
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row = matrix_get_row(rows-1);
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if (rows < 10) { *pbuf = rows+48; pbuf++; *pbuf = ' '; pbuf++; *pbuf = ' '; pbuf++; }
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else { *pbuf = (rows/10)+48; pbuf++; *pbuf = (rows%10)+48; pbuf++; *pbuf = ' '; pbuf++; }
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for (cols = 0; cols < MATRIX_COLS; cols++)
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{
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if (row & 1 << cols) *pbuf = 'X';
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else *pbuf = '.';
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pbuf++;
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}
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*pbuf = '\r'; pbuf++;
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*pbuf = '\n'; pbuf++;
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}
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*pbuf = 0;
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dprint(buf);
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}
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