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Diffstat (limited to 'keyboards/handwired/dygma/raise/matrix.c')
| -rw-r--r-- | keyboards/handwired/dygma/raise/matrix.c | 104 |
1 files changed, 0 insertions, 104 deletions
diff --git a/keyboards/handwired/dygma/raise/matrix.c b/keyboards/handwired/dygma/raise/matrix.c deleted file mode 100644 index bbcf697a59..0000000000 --- a/keyboards/handwired/dygma/raise/matrix.c +++ /dev/null @@ -1,104 +0,0 @@ -/* Copyright 2018-2021 James Laird-Wah, Islam Sharabash - * - * 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 "quantum.h" -#include "i2c_master.h" -#include <string.h> -#include "wire-protocol-constants.h" - -// shifting << 1 is because drivers/chibios/i2c_master.h expects the address -// shifted. -// 0x58 and 0x59 are the addresses defined in dygma/raise/Hand.h -#define I2C_ADDR_LEFT (0x58 << 1) -#define I2C_ADDR_RIGHT (0x59 << 1) -#define I2C_ADDR(hand) ((hand) ? I2C_ADDR_RIGHT : I2C_ADDR_LEFT) -#define LEFT 0 -#define RIGHT 1 - -/* If no key events have occurred, the scanners will time out on reads. - * So we don't want to be too permissive here. */ -// TODO(ibash) not convinced this is needed... -#define MY_I2C_TIMEOUT 10 -#define ROWS_PER_HAND (MATRIX_ROWS / 2) - -typedef enum { CHANGED, OFFLINE, UNCHANGED } read_hand_t; - -static read_hand_t last_state[2] = {OFFLINE, OFFLINE}; - -static read_hand_t i2c_read_hand(int hand, matrix_row_t current_matrix[]) { - // dygma raise firmware says online is true iff we get the number of - // expected bytes (e.g. 6 bytes or ROWS_PER_HAND + 1). - // In the case where no keys are pressed the keyscanner will send the same 0 - // byte over and over. -- so this case is set. - // - // On the stm32 side if we don't get as many bytes as expecetd the - // i2c_receive times out -- so online can be defined as getting - // "I2C_STATUS_SUCCESS". - - uint8_t buf[ROWS_PER_HAND + 1]; - i2c_status_t ret = i2c_receive(I2C_ADDR(hand), buf, sizeof(buf), MY_I2C_TIMEOUT); - if (ret != I2C_STATUS_SUCCESS) { - return OFFLINE; - } - - if (buf[0] != TWI_REPLY_KEYDATA) { - return UNCHANGED; - } - - int start_row = hand ? ROWS_PER_HAND : 0; - matrix_row_t *out = ¤t_matrix[start_row]; - memcpy(out, &buf[1], ROWS_PER_HAND); - - return CHANGED; -} - -static int i2c_set_keyscan_interval(int hand, int delay) { - uint8_t buf[] = {TWI_CMD_KEYSCAN_INTERVAL, delay}; - i2c_status_t ret = i2c_transmit(I2C_ADDR(hand), buf, sizeof(buf), MY_I2C_TIMEOUT); - return ret; -} - -void matrix_init_custom(void) { - i2c_init(); - - // ref: https://github.com/Dygmalab/Kaleidoscope/blob/7bac53de106c42ffda889e6854abc06cf43a3c6f/src/kaleidoscope/device/dygma/Raise.cpp#L83 - // ref: https://github.com/Dygmalab/Kaleidoscope/blob/7bac53de106c42ffda889e6854abc06cf43a3c6f/src/kaleidoscope/device/dygma/raise/Hand.cpp#L73 - i2c_set_keyscan_interval(LEFT, 50); - i2c_set_keyscan_interval(RIGHT, 50); -} - -bool matrix_scan_custom(matrix_row_t current_matrix[]) { - // HACK(ibash) without the delay between the two calls to i2c_read_hand, the - // second call to i2c_read_hand breaks. I observed that the i2s start isn't - // sent, or maybe it is, but the address matcher in the attiny can't recognize - // it. In any case, a short delay fixes it. - read_hand_t left_state = i2c_read_hand(LEFT, current_matrix); - wait_us(10); - read_hand_t right_state = i2c_read_hand(RIGHT, current_matrix); - - - if ((last_state[LEFT] == OFFLINE && left_state != OFFLINE) || (last_state[RIGHT] == OFFLINE && right_state != OFFLINE)) { - // reinitialize both sides - i2c_set_keyscan_interval(LEFT, 50); - i2c_set_keyscan_interval(RIGHT, 50); - } - - last_state[LEFT] = left_state; - last_state[RIGHT] = right_state; - - bool matrix_has_changed = left_state == CHANGED || right_state == CHANGED; - - return matrix_has_changed; -} |