From b779078c608292483b40cb13346ff54485e96823 Mon Sep 17 00:00:00 2001 From: horza21 <38391766+horza21@users.noreply.github.com> Date: Tue, 24 Mar 2020 06:26:22 +0800 Subject: [Keyboard] Add support for Southpaw Extended 65% (#8465) * Add support for Southpaw Extended 65% * Update keyboards/switchplate/southpaw_65/readme.md * Update keyboards/switchplate/southpaw_65/readme.md * Update keyboards/switchplate/southpaw_65/readme.md * Update keyboards/switchplate/southpaw_65/southpaw_65.c * Update keyboards/switchplate/southpaw_65/rules.mk * Cleaned up keymaps -Removed default2 keymap -Removed default_iso2 keymap -Rename default keymap directory to default_ansi to reflect correct keymap name * Update readme.md for default_ansi keymap directory change * Add layout_all for configurator and correct maximum number of keys supported in readme.md * Update keyboards/switchplate/southpaw_65/info.json Forgot to change name to LAYOUT_all * Update keyboards/switchplate/southpaw_65/info.json * Update keyboards/switchplate/southpaw_65/readme.md * Update keyboards/switchplate/southpaw_65/rules.mk * Add LAYOUT_all keymap * Update keyboards/switchplate/southpaw_65/keymaps/default/keymap.c * Update keyboards/switchplate/southpaw_65/info.json --- keyboards/switchplate/southpaw_65/matrix.c | 95 ++++++++++++++++++++++++++++++ 1 file changed, 95 insertions(+) create mode 100644 keyboards/switchplate/southpaw_65/matrix.c (limited to 'keyboards/switchplate/southpaw_65/matrix.c') diff --git a/keyboards/switchplate/southpaw_65/matrix.c b/keyboards/switchplate/southpaw_65/matrix.c new file mode 100644 index 0000000000..e701d274f0 --- /dev/null +++ b/keyboards/switchplate/southpaw_65/matrix.c @@ -0,0 +1,95 @@ +/* Copyright 2019 + * + * 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 +#include +#include +#include +#include "matrix.h" +#include "pca9555.h" +#include "quantum.h" + +#include "debug.h" + +// PCA9555 slave addresses +#define IC1 0x20 +#define IC2 0x21 + +//_____Utility funcs___________________________________________________________ + +static void init_pins(void) { + // init all rows - IC1 port0 input + pca9555_set_config(IC1, PCA9555_PORT0, ALL_INPUT); // same as initial state + + // init all cols high - IC2 all input + pca9555_set_config(IC1, PCA9555_PORT1, ALL_INPUT); // same as initial state + pca9555_set_config(IC2, PCA9555_PORT0, ALL_INPUT); // same as initial state + pca9555_set_config(IC2, PCA9555_PORT1, ALL_INPUT); // same as initial state + + pca9555_set_output(IC1, PCA9555_PORT0, ALL_LOW); +} + +static void select_row(uint8_t row) { + // For the Southpaw Ext 65% pins 1-6 are used for the rows + uint8_t pin = row; + uint8_t mask = 2 << pin; + + pca9555_set_config(IC1, PCA9555_PORT0, ALL_INPUT & (~mask)); +} + +static uint32_t read_cols(void) { + //Read column inputs. Pins 13-31 are used. Split across both ICs but they are sequential + uint32_t state_1 = pca9555_readPins(IC1, PCA9555_PORT1); + uint32_t state_2 = pca9555_readPins(IC2, PCA9555_PORT0); + uint32_t state_3 = pca9555_readPins(IC2, PCA9555_PORT1); + + uint32_t state = (((state_3 & 0b01111111) << 12) | (state_2 << 4) | ((state_1 & 0b11110000) >> 4)); + return ~state; +} + +static bool read_cols_on_row(matrix_row_t current_matrix[], uint8_t current_row) { + // Store last value of row prior to reading + matrix_row_t last_row_value = current_matrix[current_row]; + + // Clear data in matrix row + current_matrix[current_row] = 0; + + // Select row and wait for row selection to stabilize + select_row(current_row); + // Skip the wait_us(30); as i2c is slow enough to debounce the io changes + + current_matrix[current_row] = read_cols(); + + // No need to Unselect row as the next `select_row` will blank everything + + return (last_row_value != current_matrix[current_row]); +} + +//_____CUSTOM MATRIX IMPLEMENTATION____________________________________________________ + +void matrix_init_custom(void) { + pca9555_init(IC1); + pca9555_init(IC2); + + init_pins(); +} + +bool matrix_scan_custom(matrix_row_t current_matrix[]) { + bool changed = false; + for (uint8_t current_row = 0; current_row < MATRIX_ROWS; current_row++) { + changed |= read_cols_on_row(current_matrix, current_row); + } + return changed; +} -- cgit v1.2.1