1 files changed, 173 insertions, 0 deletions

diff --git a/keyboards/ergodox_infinity/matrix.c b/keyboards/ergodox_infinity/matrix.c
new file mode 100644
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+++ b/keyboards/ergodox_infinity/matrix.c
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+/*
+Copyright 2016 Fred Sundvik <fsundvik@gmail.com>
+Jun Wako <wakojun@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 <stdint.h>
+#include <stdbool.h>
+#include <string.h>
+#include "hal.h"
+#include "timer.h"
+#include "wait.h"
+#include "print.h"
+#include "debug.h"
+#include "matrix.h"
+#include "serial_link/system/serial_link.h"
+
+
+/*
+ * Infinity ErgoDox Pinusage:
+ * Column pins are input with internal pull-down. Row pins are output and strobe with high.
+ * Key is high or 1 when it turns on.
+ *
+ *     col: { PTD1, PTD4, PTD5, PTD6, PTD7 }
+ *     row: { PTB2, PTB3, PTB18, PTB19, PTC0, PTC9, PTC10, PTC11, PTD0 }
+ */
+/* matrix state(1:on, 0:off) */
+static matrix_row_t matrix[MATRIX_ROWS];
+static matrix_row_t matrix_debouncing[LOCAL_MATRIX_ROWS];
+static bool debouncing = false;
+static uint16_t debouncing_time = 0;
+
+
+void matrix_init(void)
+{
+    /* Column(sense) */
+    palSetPadMode(GPIOD, 1,  PAL_MODE_INPUT_PULLDOWN);
+    palSetPadMode(GPIOD, 4,  PAL_MODE_INPUT_PULLDOWN);
+    palSetPadMode(GPIOD, 5,  PAL_MODE_INPUT_PULLDOWN);
+    palSetPadMode(GPIOD, 6,  PAL_MODE_INPUT_PULLDOWN);
+    palSetPadMode(GPIOD, 7,  PAL_MODE_INPUT_PULLDOWN);
+
+    /* Row(strobe) */
+    palSetPadMode(GPIOB, 2,  PAL_MODE_OUTPUT_PUSHPULL);
+    palSetPadMode(GPIOB, 3,  PAL_MODE_OUTPUT_PUSHPULL);
+    palSetPadMode(GPIOB, 18, PAL_MODE_OUTPUT_PUSHPULL);
+    palSetPadMode(GPIOB, 19, PAL_MODE_OUTPUT_PUSHPULL);
+    palSetPadMode(GPIOC, 0,  PAL_MODE_OUTPUT_PUSHPULL);
+    palSetPadMode(GPIOC, 9,  PAL_MODE_OUTPUT_PUSHPULL);
+    palSetPadMode(GPIOC, 10, PAL_MODE_OUTPUT_PUSHPULL);
+    palSetPadMode(GPIOC, 11, PAL_MODE_OUTPUT_PUSHPULL);
+    palSetPadMode(GPIOD, 0,  PAL_MODE_OUTPUT_PUSHPULL);
+
+    memset(matrix, 0, MATRIX_ROWS);
+    memset(matrix_debouncing, 0, LOCAL_MATRIX_ROWS);
+
+    matrix_init_quantum();
+}
+
+uint8_t matrix_scan(void)
+{
+    for (int row = 0; row < LOCAL_MATRIX_ROWS; row++) {
+        matrix_row_t data = 0;
+
+        // strobe row
+        switch (row) {
+            case 0: palSetPad(GPIOB, 2);    break;
+            case 1: palSetPad(GPIOB, 3);    break;
+            case 2: palSetPad(GPIOB, 18);   break;
+            case 3: palSetPad(GPIOB, 19);   break;
+            case 4: palSetPad(GPIOC, 0);    break;
+            case 5: palSetPad(GPIOC, 9);    break;
+            case 6: palSetPad(GPIOC, 10);   break;
+            case 7: palSetPad(GPIOC, 11);   break;
+            case 8: palSetPad(GPIOD, 0);    break;
+        }
+
+        // need wait to settle pin state
+        // if you wait too short, or have a too high update rate
+        // the keyboard might freeze, or there might not be enough
+        // processing power to update the LCD screen properly.
+        // 20us, or two ticks at 100000Hz seems to be OK
+        wait_us(20);
+
+        // read col data: { PTD1, PTD4, PTD5, PTD6, PTD7 }
+        data = ((palReadPort(GPIOD) & 0xF0) >> 3) |
+               ((palReadPort(GPIOD) & 0x02) >> 1);
+
+        // un-strobe row
+        switch (row) {
+            case 0: palClearPad(GPIOB, 2);  break;
+            case 1: palClearPad(GPIOB, 3);  break;
+            case 2: palClearPad(GPIOB, 18); break;
+            case 3: palClearPad(GPIOB, 19); break;
+            case 4: palClearPad(GPIOC, 0);  break;
+            case 5: palClearPad(GPIOC, 9);  break;
+            case 6: palClearPad(GPIOC, 10); break;
+            case 7: palClearPad(GPIOC, 11); break;
+            case 8: palClearPad(GPIOD, 0);  break;
+        }
+
+        if (matrix_debouncing[row] != data) {
+            matrix_debouncing[row] = data;
+            debouncing = true;
+            debouncing_time = timer_read();
+        }
+    }
+
+    uint8_t offset = 0;
+#ifdef MASTER_IS_ON_RIGHT
+    if (is_serial_link_master()) {
+        offset = MATRIX_ROWS - LOCAL_MATRIX_ROWS;
+    }
+#endif
+
+    if (debouncing && timer_elapsed(debouncing_time) > DEBOUNCE) {
+        for (int row = 0; row < LOCAL_MATRIX_ROWS; row++) {
+            matrix[offset + row] = matrix_debouncing[row];
+        }
+        debouncing = false;
+    }
+    matrix_scan_quantum();
+    return 1;
+}
+
+bool matrix_is_on(uint8_t row, uint8_t col)
+{
+    return (matrix[row] & (1<<col));
+}
+
+matrix_row_t matrix_get_row(uint8_t row)
+{
+    return matrix[row];
+}
+
+void matrix_print(void)
+{
+    xprintf("\nr/c 01234567\n");
+    for (uint8_t row = 0; row < MATRIX_ROWS; row++) {
+        xprintf("%X0: ", row);
+        matrix_row_t data = matrix_get_row(row);
+        for (int col = 0; col < MATRIX_COLS; col++) {
+            if (data & (1<<col))
+                xprintf("1");
+            else
+                xprintf("0");
+        }
+        xprintf("\n");
+    }
+}
+
+void matrix_set_remote(matrix_row_t* rows, uint8_t index) {
+    uint8_t offset = 0;
+#ifdef MASTER_IS_ON_RIGHT
+    offset = MATRIX_ROWS - LOCAL_MATRIX_ROWS * (index + 2);
+#else
+    offset = LOCAL_MATRIX_ROWS * (index + 1);
+#endif
+    for (int row = 0; row < LOCAL_MATRIX_ROWS; row++) {
+        matrix[offset + row] = rows[row];
+    }
+}