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author | Jay Greco <[email protected]> | 2020-10-22 23:47:14 -0700 |
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committer | GitHub <[email protected]> | 2020-10-23 17:47:14 +1100 |
commit | 999326acc81687794e25ad7731f37da59881e0ca (patch) | |
tree | ceb786ae2dac25486a57c5ed004e921677c922b1 /keyboards/nullbitsco/nibble/matrix.c | |
parent | 8cbaea9e8d00b959ccb1b474fa8a81417b651de2 (diff) | |
download | qmk_firmware-999326acc81687794e25ad7731f37da59881e0ca.tar.gz qmk_firmware-999326acc81687794e25ad7731f37da59881e0ca.zip |
Add nullbits nibble (#9250)
* Add NIBBLE keyboard
* Update VID for VIA compatibility
* Add QMK PR feedback
* Update matrix_init_remote_kb()
* Update with requested changes
Clean up config, makefile rules, and keymap files
* Update with changes for unified ANSI/ISO layout
* Add NO_USB_STARTUP_CHECK note in readme
* Add license info, update with PR changes
-Refactor encoder, via_extras code
-Refactor VIA specific code to live in keymap folder
-Remove non-inclusive naming in remote keyboard.c/h
-Add documentation to remote_keyboard.c
-Add compiler check for vusb_detect for non-avr micros
* Fix print formatter in encoder handler
Co-authored-by: Nick Brassel <[email protected]>
* Small PR updates
-Remove unneded matrix code from nibble.c
-Clean up include code in nibble_encoder.h
* Update Big LED headerfile
-Declare Big LED functions in header file (derp)
* Update keyboards/nullbitsco/nibble/nibble.c
-Update with drashna's suggested CAPS LED code change
Co-authored-by: Drashna Jaelre <[email protected]>
* Update keyboards/nullbitsco/nibble/rules.mk
-Update with drasha's suggested makefile formatting changes
Co-authored-by: Drashna Jaelre <[email protected]>
* Fix caps_lock typo
Co-authored-by: Nick Brassel <[email protected]>
Co-authored-by: Drashna Jaelre <[email protected]>
Diffstat (limited to 'keyboards/nullbitsco/nibble/matrix.c')
-rw-r--r-- | keyboards/nullbitsco/nibble/matrix.c | 95 |
1 files changed, 95 insertions, 0 deletions
diff --git a/keyboards/nullbitsco/nibble/matrix.c b/keyboards/nullbitsco/nibble/matrix.c new file mode 100644 index 0000000000..8ec9da2844 --- /dev/null +++ b/keyboards/nullbitsco/nibble/matrix.c @@ -0,0 +1,95 @@ +/* Copyright 2020 Jay Greco + * + * 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" + +#define COL_SHIFTER ((uint32_t)1) + +// Column pins +static const uint8_t row_pins[MATRIX_ROWS] = MATRIX_ROW_PINS; +static const uint8_t col_pins[MATRIX_MUX_COLS] = MATRIX_COL_MUX_PINS; + +// Internal functions + +static void init_pins(void) { + // Set cols to outputs, low + for (uint8_t pin = 0; pin < MATRIX_MUX_COLS; pin++) { + setPinOutput(col_pins[pin]); + } + + // Unselect cols + for (uint8_t bit = 0; bit < MATRIX_MUX_COLS; bit++) { + writePinLow(col_pins[bit]); + } + + // Set rows to input, pullup + for (uint8_t pin = 0; pin < MATRIX_ROWS; pin++) { + setPinInputHigh(row_pins[pin]); + } +} + +static void select_col(uint8_t col) +{ + for (uint8_t bit = 0; bit < MATRIX_MUX_COLS; bit++) { + uint8_t state = (col & (0b1 << bit)) >> bit; + writePin(col_pins[bit], state); + } +} + +static bool read_rows_on_col(matrix_row_t current_matrix[], uint8_t current_col) +{ + bool matrix_changed = false; + select_col(current_col); + wait_us(5); + + // Read each row sequentially + for(uint8_t row_index = 0; row_index < MATRIX_ROWS; row_index++) + { + matrix_row_t last_row_value = current_matrix[row_index]; + + if (!readPin(row_pins[row_index])) + { + current_matrix[row_index] |= (COL_SHIFTER << current_col); + } + else + { + current_matrix[row_index] &= ~(COL_SHIFTER << current_col); + } + + if ((last_row_value != current_matrix[row_index]) && !(matrix_changed)) + { + matrix_changed = true; + } + } + + return matrix_changed; +} + +// Matrix scan functions + +void matrix_init_custom(void) { + init_pins(); +} + +bool matrix_scan_custom(matrix_row_t current_matrix[]) { + bool changed = false; + + //Set col, read rows + for (uint8_t current_col = 0; current_col < MATRIX_COLS; current_col++) { + changed |= read_rows_on_col(current_matrix, current_col); + } + + return (uint8_t)changed; +}
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