qmk

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git clone git://git.z3bra.org/qmk.git
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commit 85688e5b52112c86895171d3dc8b26610480e932
parent e22c3992454ade93ccaef70ab077e79a4b2a5ef0
Author: Jack Humbert <jack.humb@gmail.com>
Date:   Fri, 26 Oct 2018 16:19:23 -0400

add support for encoders to core

Diffstat:
common_features.mk | 5+++++
docs/_sidebar.md | 1+
docs/_summary.md | 1+
docs/feature_encoders.md | 41+++++++++++++++++++++++++++++++++++++++++
keyboards/planck/planck.h | 2++
keyboards/planck/rev6/config.h | 4++++
keyboards/planck/rev6/matrix.c | 29-----------------------------
keyboards/planck/rev6/rules.mk | 1+
quantum/encoder.c | 70++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
quantum/encoder.h | 29+++++++++++++++++++++++++++++
quantum/quantum.c | 12++++++++++++
11 files changed, 166 insertions(+), 29 deletions(-)

diff --git a/common_features.mk b/common_features.mk @@ -219,6 +219,11 @@ ifeq ($(strip $(USB_HID_ENABLE)), yes) include $(TMK_DIR)/protocol/usb_hid.mk endif +ifeq ($(strip $(ENCODER_ENABLE)), yes) + SRC += $(QUANTUM_DIR)/encoder.c + OPT_DEFS += -DENCODER_ENABLE +endif + ifeq ($(strip $(HD44780_ENABLE)), yes) SRC += drivers/avr/hd44780.c OPT_DEFS += -DHD44780_ENABLE diff --git a/docs/_sidebar.md b/docs/_sidebar.md @@ -52,6 +52,7 @@ * [Combos](feature_combo) * [Command](feature_command.md) * [Dynamic Macros](feature_dynamic_macros.md) + * [Encoders](feature_encoders.md) * [Grave Escape](feature_grave_esc.md) * [Key Lock](feature_key_lock.md) * [Layouts](feature_layouts.md) diff --git a/docs/_summary.md b/docs/_summary.md @@ -52,6 +52,7 @@ * [Combos](feature_combo) * [Command](feature_command.md) * [Dynamic Macros](feature_dynamic_macros.md) + * [Encoders](feature_encoders.md) * [Grave Escape](feature_grave_esc.md) * [Key Lock](feature_key_lock.md) * [Layouts](feature_layouts.md) diff --git a/docs/feature_encoders.md b/docs/feature_encoders.md @@ -0,0 +1,41 @@ +# Encoders + +Basic encoders are supported by adding this to your `rules.mk`: + + ENCODER_ENABLE = yes + +and this to your `config.h`: + + #define NUMBER_OF_ENCODERS 1 + #define ENCODERS_PAD_A { B12 } + #define ENCODERS_PAD_B { B13 } + +Each PAD_A/B variable defines an array so multiple encoders can be defined, e.g.: + + #define ENCODERS_PAD_A { encoder1a, encoder2a } + #define ENCODERS_PAD_B { encoder1a, encoder2b } + +If your encoder's clockwise directions are incorrect, you can swap the A & B pad definitions. + +Additionally, the resolution can be specified in the same file (the default & suggested is 4): + + #define ENCODER_RESOLUTION 4 + +## Callbacks + +The callback functions can be inserted into your `<keyboard>.c`: + + void encoder_update_kb(uint8_t index, bool clockwise) { + encoder_update_user(index, clockwise); + } + +or `keymap.c`: + + void encoder_update_user(uint8_t index, bool clockwise) { + + } + + +## Hardware + +The A an B lines of the encoders should be wired directly to the MCU, and the C/common lines should be wired to ground. diff --git a/keyboards/planck/planck.h b/keyboards/planck/planck.h @@ -3,6 +3,8 @@ #include "quantum.h" +#define encoder_update(clockwise) encoder_update_user(uint8_t index, clockwise) + #ifdef __AVR__ #define LAYOUT_planck_mit( \ k00, k01, k02, k03, k04, k05, k06, k07, k08, k09, k0a, k0b, \ diff --git a/keyboards/planck/rev6/config.h b/keyboards/planck/rev6/config.h @@ -43,6 +43,10 @@ * #define UNUSED_PINS */ +#define NUMBER_OF_ENCODERS 1 +#define ENCODERS_PAD_A { B12 } +#define ENCODERS_PAD_B { B13 } + #define MUSIC_MAP #undef AUDIO_VOICES #undef C6_AUDIO diff --git a/keyboards/planck/rev6/matrix.c b/keyboards/planck/rev6/matrix.c @@ -21,10 +21,6 @@ static matrix_row_t matrix_debouncing[MATRIX_COLS]; static bool debouncing = false; static uint16_t debouncing_time = 0; -static uint8_t encoder_state = 0; -static int8_t encoder_value = 0; -static int8_t encoder_LUT[] = { 0, -1, 1, 0, 1, 0, 0, -1, -1, 0, 0, 1, 0, 1, -1, 0 }; - static bool dip_switch[4] = {0, 0, 0, 0}; __attribute__ ((weak)) @@ -53,12 +49,6 @@ void matrix_init(void) { palSetPadMode(GPIOA, 10, PAL_MODE_INPUT_PULLUP); palSetPadMode(GPIOB, 9, PAL_MODE_INPUT_PULLUP); - // encoder setup - palSetPadMode(GPIOB, 12, PAL_MODE_INPUT_PULLUP); - palSetPadMode(GPIOB, 13, PAL_MODE_INPUT_PULLUP); - - encoder_state = (palReadPad(GPIOB, 12) << 0) | (palReadPad(GPIOB, 13) << 1); - // actual matrix setup palSetPadMode(GPIOB, 11, PAL_MODE_OUTPUT_PUSHPULL); palSetPadMode(GPIOB, 10, PAL_MODE_OUTPUT_PUSHPULL); @@ -87,15 +77,8 @@ void matrix_init(void) { __attribute__ ((weak)) void dip_update(uint8_t index, bool active) { } -__attribute__ ((weak)) -void encoder_update(bool clockwise) { } - bool last_dip_switch[4] = {0}; -#ifndef ENCODER_RESOLUTION - #define ENCODER_RESOLUTION 4 -#endif - uint8_t matrix_scan(void) { // dip switch dip_switch[0] = !palReadPad(GPIOB, 14); @@ -108,18 +91,6 @@ uint8_t matrix_scan(void) { } memcpy(last_dip_switch, dip_switch, sizeof(&dip_switch)); - // encoder on B12 and B13 - encoder_state <<= 2; - encoder_state |= (palReadPad(GPIOB, 12) << 0) | (palReadPad(GPIOB, 13) << 1); - encoder_value += encoder_LUT[encoder_state & 0xF]; - if (encoder_value >= ENCODER_RESOLUTION) { - encoder_update(0); - } - if (encoder_value <= -ENCODER_RESOLUTION) { // direction is arbitrary here, but this clockwise - encoder_update(1); - } - encoder_value %= ENCODER_RESOLUTION; - // actual matrix for (int col = 0; col < MATRIX_COLS; col++) { matrix_row_t data = 0; diff --git a/keyboards/planck/rev6/rules.mk b/keyboards/planck/rev6/rules.mk @@ -54,3 +54,4 @@ CUSTOM_MATRIX = yes # Custom matrix file AUDIO_ENABLE = yes RGBLIGHT_ENABLE = no # SERIAL_LINK_ENABLE = yes +ENCODER_ENABLE = yes diff --git a/quantum/encoder.c b/quantum/encoder.c @@ -0,0 +1,70 @@ +/* + * Copyright 2018 Jack Humbert <jack.humb@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 "encoder.h" + +#ifndef ENCODER_RESOLUTION + #define ENCODER_RESOLUTION 4 +#endif + +#ifndef NUMBER_OF_ENCODERS + #error "Number of encoders not defined by NUMBER_OF_ENCODERS" +#endif + +#if !defined(ENCODERS_PAD_A) || !defined(ENCODERS_PAD_B) + #error "No encoder pads defined by ENCODERS_PAD_A and ENCODERS_PAD_B" +#endif + +static pin_t encoders_pad_a[NUMBER_OF_ENCODERS] = ENCODERS_PAD_A; +static pin_t encoders_pad_b[NUMBER_OF_ENCODERS] = ENCODERS_PAD_B; + +static int8_t encoder_LUT[] = { 0, -1, 1, 0, 1, 0, 0, -1, -1, 0, 0, 1, 0, 1, -1, 0 }; + +static uint8_t encoder_state[NUMBER_OF_ENCODERS] = {0}; +static int8_t encoder_value[NUMBER_OF_ENCODERS] = {0}; + +__attribute__ ((weak)) +void encoder_update_user(int8_t index, bool clockwise) { } + +__attribute__ ((weak)) +void encoder_update_kb(int8_t index, bool clockwise) { + encoder_update_user(index, clockwise); +} + +void encoder_init(void) { + for (int i = 0; i < NUMBER_OF_ENCODERS; i++) { + setPinInputHigh(encoders_pad_a[i]); + setPinInputHigh(encoders_pad_b[i]); + + encoder_state[i] = (readPin(encoders_pad_a[i]) << 0) | (readPin(encoders_pad_b[i]) << 1); + } +} + +void encoder_read(void) { + for (int i = 0; i < NUMBER_OF_ENCODERS; i++) { + encoder_state[i] <<= 2; + encoder_state[i] |= (readPin(encoders_pad_a[i]) << 0) | (readPin(encoders_pad_b[i]) << 1); + encoder_value[i] += encoder_LUT[encoder_state[i] & 0xF]; + if (encoder_value[i] >= ENCODER_RESOLUTION) { + encoder_update_kb(i, COUNTRECLOCKWISE); + } + if (encoder_value[i] <= -ENCODER_RESOLUTION) { // direction is arbitrary here, but this clockwise + encoder_update_kb(i, CLOCKWISE); + } + encoder_value[i] %= ENCODER_RESOLUTION; + } +} diff --git a/quantum/encoder.h b/quantum/encoder.h @@ -0,0 +1,29 @@ +/* + * Copyright 2018 Jack Humbert <jack.humb@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/>. + */ + +#pragma once + +#include "quantum.h" + +#define COUNTRECLOCKWISE 0 +#define CLOCKWISE 1 + +void encoder_init(void); +void encoder_read(void); + +void encoder_update_kb(int8_t index, bool clockwise); +void encoder_update_user(int8_t index, bool clockwise); diff --git a/quantum/quantum.c b/quantum/quantum.c @@ -42,6 +42,11 @@ extern backlight_config_t backlight_config; #include "process_midi.h" #endif + +#ifdef ENCODER_ENABLE +#include "encoder.h" +#endif + #ifdef AUDIO_ENABLE #ifndef GOODBYE_SONG #define GOODBYE_SONG SONG(GOODBYE_SOUND) @@ -957,6 +962,9 @@ void matrix_init_quantum() { #ifdef RGB_MATRIX_ENABLE rgb_matrix_init(); #endif + #ifdef ENCODER_ENABLE + encoder_init(); + #endif matrix_init_kb(); } @@ -991,6 +999,10 @@ void matrix_scan_quantum() { rgb_matrix_task_counter = ((rgb_matrix_task_counter + 1) % (RGB_MATRIX_SKIP_FRAMES + 1)); #endif + #ifdef ENCODER_ENABLE + encoder_read(); + #endif + matrix_scan_kb(); } #if defined(BACKLIGHT_ENABLE) && defined(BACKLIGHT_PIN)