From 25713dc2225556b20101347580146f9820d5e831 Mon Sep 17 00:00:00 2001 From: Chad Austin Date: Sun, 26 Dec 2021 18:44:56 -0800 Subject: [PATCH] Add sym_defer_pr debouncer type (#14948) --- data/schemas/keyboard.jsonschema | 2 +- docs/feature_debounce_type.md | 1 + quantum/debounce/sym_defer_pr.c | 72 ++++++ quantum/debounce/tests/rules.mk | 5 + quantum/debounce/tests/sym_defer_pr_tests.cpp | 223 ++++++++++++++++++ quantum/debounce/tests/testlist.mk | 1 + 6 files changed, 303 insertions(+), 1 deletion(-) create mode 100644 quantum/debounce/sym_defer_pr.c create mode 100644 quantum/debounce/tests/sym_defer_pr_tests.cpp diff --git a/data/schemas/keyboard.jsonschema b/data/schemas/keyboard.jsonschema index 308f9b782b..2daeaf04b4 100644 --- a/data/schemas/keyboard.jsonschema +++ b/data/schemas/keyboard.jsonschema @@ -69,7 +69,7 @@ "properties": { "debounce_type": { "type": "string", - "enum": ["custom", "eager_pk", "eager_pr", "sym_defer_pk", "sym_eager_pk"] + "enum": ["custom", "eager_pk", "eager_pr", "sym_defer_pk", "sym_defer_pr", "sym_eager_pk"] }, "firmware_format": { "type": "string", diff --git a/docs/feature_debounce_type.md b/docs/feature_debounce_type.md index f37a785b1e..9cd736a24a 100644 --- a/docs/feature_debounce_type.md +++ b/docs/feature_debounce_type.md @@ -116,6 +116,7 @@ Where name of algorithm is one of: For use in keyboards where refreshing ```NUM_KEYS``` 8-bit counters is computationally expensive / low scan rate, and fingers usually only hit one row at a time. This could be appropriate for the ErgoDox models; the matrix is rotated 90°, and hence its "rows" are really columns, and each finger only hits a single "row" at a time in normal use. * ```sym_eager_pk``` - debouncing per key. On any state change, response is immediate, followed by ```DEBOUNCE``` milliseconds of no further input for that key +* ```sym_defer_pr``` - debouncing per row. On any state change, a per-row timer is set. When ```DEBOUNCE``` milliseconds of no changes have occurred on that row, the entire row is pushed. Can improve responsiveness over `sym_defer_g` while being less susceptible than per-key debouncers to noise. * ```sym_defer_pk``` - debouncing per key. On any state change, a per-key timer is set. When ```DEBOUNCE``` milliseconds of no changes have occurred on that key, the key status change is pushed. * ```asym_eager_defer_pk``` - debouncing per key. On a key-down state change, response is immediate, followed by ```DEBOUNCE``` milliseconds of no further input for that key. On a key-up state change, a per-key timer is set. When ```DEBOUNCE``` milliseconds of no changes have occurred on that key, the key-up status change is pushed. diff --git a/quantum/debounce/sym_defer_pr.c b/quantum/debounce/sym_defer_pr.c new file mode 100644 index 0000000000..8b33acc6a2 --- /dev/null +++ b/quantum/debounce/sym_defer_pr.c @@ -0,0 +1,72 @@ +/* +Copyright 2021 Chad Austin +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 . +*/ + +/* +Symmetric per-row debounce algorithm. Changes only apply when +DEBOUNCE milliseconds have elapsed since the last change. +*/ + +#include "matrix.h" +#include "timer.h" +#include "quantum.h" +#include + +#ifndef DEBOUNCE +# define DEBOUNCE 5 +#endif + +static uint16_t last_time; +// [row] milliseconds until key's state is considered debounced. +static uint8_t* countdowns; +// [row] +static matrix_row_t* last_raw; + +void debounce_init(uint8_t num_rows) { + countdowns = (uint8_t*)calloc(num_rows, sizeof(uint8_t)); + last_raw = (matrix_row_t*)calloc(num_rows, sizeof(matrix_row_t)); + + last_time = timer_read(); +} + +void debounce_free(void) { + free(countdowns); + countdowns = NULL; + free(last_raw); + last_raw = NULL; +} + +void debounce(matrix_row_t raw[], matrix_row_t cooked[], uint8_t num_rows, bool changed) { + uint16_t now = timer_read(); + uint16_t elapsed16 = TIMER_DIFF_16(now, last_time); + last_time = now; + uint8_t elapsed = (elapsed16 > 255) ? 255 : elapsed16; + + uint8_t* countdown = countdowns; + + for (uint8_t row = 0; row < num_rows; ++row, ++countdown) { + matrix_row_t raw_row = raw[row]; + + if (raw_row != last_raw[row]) { + *countdown = DEBOUNCE; + last_raw[row] = raw_row; + } else if (*countdown > elapsed) { + *countdown -= elapsed; + } else if (*countdown) { + cooked[row] = raw_row; + *countdown = 0; + } + } +} + +bool debounce_active(void) { return true; } diff --git a/quantum/debounce/tests/rules.mk b/quantum/debounce/tests/rules.mk index e908dd6f67..8318b1c668 100644 --- a/quantum/debounce/tests/rules.mk +++ b/quantum/debounce/tests/rules.mk @@ -28,6 +28,11 @@ debounce_sym_defer_pk_SRC := $(DEBOUNCE_COMMON_SRC) \ $(QUANTUM_PATH)/debounce/sym_defer_pk.c \ $(QUANTUM_PATH)/debounce/tests/sym_defer_pk_tests.cpp +debounce_sym_defer_pr_DEFS := $(DEBOUNCE_COMMON_DEFS) +debounce_sym_defer_pr_SRC := $(DEBOUNCE_COMMON_SRC) \ + $(QUANTUM_PATH)/debounce/sym_defer_pr.c \ + $(QUANTUM_PATH)/debounce/tests/sym_defer_pr_tests.cpp + debounce_sym_eager_pk_DEFS := $(DEBOUNCE_COMMON_DEFS) debounce_sym_eager_pk_SRC := $(DEBOUNCE_COMMON_SRC) \ $(QUANTUM_PATH)/debounce/sym_eager_pk.c \ diff --git a/quantum/debounce/tests/sym_defer_pr_tests.cpp b/quantum/debounce/tests/sym_defer_pr_tests.cpp new file mode 100644 index 0000000000..bb3333cf7b --- /dev/null +++ b/quantum/debounce/tests/sym_defer_pr_tests.cpp @@ -0,0 +1,223 @@ +/* Copyright 2021 Simon Arlott + * + * 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 "gtest/gtest.h" + +#include "debounce_test_common.h" + +TEST_F(DebounceTest, OneKeyShort1) { + addEvents({ /* Time, Inputs, Outputs */ + {0, {{0, 1, DOWN}}, {}}, + + {5, {}, {{0, 1, DOWN}}}, + /* 0ms delay (fast scan rate) */ + {5, {{0, 1, UP}}, {}}, + + {10, {}, {{0, 1, UP}}}, + }); + runEvents(); +} + +TEST_F(DebounceTest, OneKeyShort2) { + addEvents({ /* Time, Inputs, Outputs */ + {0, {{0, 1, DOWN}}, {}}, + + {5, {}, {{0, 1, DOWN}}}, + /* 1ms delay */ + {6, {{0, 1, UP}}, {}}, + + {11, {}, {{0, 1, UP}}}, + }); + runEvents(); +} + +TEST_F(DebounceTest, OneKeyShort3) { + addEvents({ /* Time, Inputs, Outputs */ + {0, {{0, 1, DOWN}}, {}}, + + {5, {}, {{0, 1, DOWN}}}, + /* 2ms delay */ + {7, {{0, 1, UP}}, {}}, + + {12, {}, {{0, 1, UP}}}, + }); + runEvents(); +} + +TEST_F(DebounceTest, OneKeyTooQuick1) { + addEvents({ /* Time, Inputs, Outputs */ + {0, {{0, 1, DOWN}}, {}}, + /* Release key exactly on the debounce time */ + {5, {{0, 1, UP}}, {}}, + }); + runEvents(); +} + +TEST_F(DebounceTest, OneKeyTooQuick2) { + addEvents({ /* Time, Inputs, Outputs */ + {0, {{0, 1, DOWN}}, {}}, + + {5, {}, {{0, 1, DOWN}}}, + {6, {{0, 1, UP}}, {}}, + + /* Press key exactly on the debounce time */ + {11, {{0, 1, DOWN}}, {}}, + }); + runEvents(); +} + +TEST_F(DebounceTest, OneKeyBouncing1) { + addEvents({ /* Time, Inputs, Outputs */ + {0, {{0, 1, DOWN}}, {}}, + {1, {{0, 1, UP}}, {}}, + {2, {{0, 1, DOWN}}, {}}, + {3, {{0, 1, UP}}, {}}, + {4, {{0, 1, DOWN}}, {}}, + {5, {{0, 1, UP}}, {}}, + {6, {{0, 1, DOWN}}, {}}, + {11, {}, {{0, 1, DOWN}}}, /* 5ms after DOWN at time 7 */ + }); + runEvents(); +} + +TEST_F(DebounceTest, OneKeyBouncing2) { + addEvents({ /* Time, Inputs, Outputs */ + {0, {{0, 1, DOWN}}, {}}, + {5, {}, {{0, 1, DOWN}}}, + {6, {{0, 1, UP}}, {}}, + {7, {{0, 1, DOWN}}, {}}, + {8, {{0, 1, UP}}, {}}, + {9, {{0, 1, DOWN}}, {}}, + {10, {{0, 1, UP}}, {}}, + {15, {}, {{0, 1, UP}}}, /* 5ms after UP at time 10 */ + }); + runEvents(); +} + +TEST_F(DebounceTest, OneKeyLong) { + addEvents({ /* Time, Inputs, Outputs */ + {0, {{0, 1, DOWN}}, {}}, + + {5, {}, {{0, 1, DOWN}}}, + + {25, {{0, 1, UP}}, {}}, + + {30, {}, {{0, 1, UP}}}, + + {50, {{0, 1, DOWN}}, {}}, + + {55, {}, {{0, 1, DOWN}}}, + }); + runEvents(); +} + +TEST_F(DebounceTest, TwoKeysShort) { + addEvents({ /* Time, Inputs, Outputs */ + {0, {{0, 1, DOWN}}, {}}, + {1, {{0, 2, DOWN}}, {}}, + + {6, {}, {{0, 1, DOWN}, {0, 2, DOWN}}}, + + {7, {{0, 1, UP}}, {}}, + {8, {{0, 2, UP}}, {}}, + + {13, {}, {{0, 1, UP}, {0, 2, UP}}}, + }); + runEvents(); +} + +TEST_F(DebounceTest, TwoKeysSimultaneous1) { + addEvents({ /* Time, Inputs, Outputs */ + {0, {{0, 1, DOWN}, {0, 2, DOWN}}, {}}, + + {5, {}, {{0, 1, DOWN}, {0, 2, DOWN}}}, + {6, {{0, 1, UP}, {0, 2, UP}}, {}}, + + {11, {}, {{0, 1, UP}, {0, 2, UP}}}, + }); + runEvents(); +} + +TEST_F(DebounceTest, TwoKeysSimultaneous2) { + addEvents({ /* Time, Inputs, Outputs */ + {0, {{0, 1, DOWN}}, {}}, + {1, {{0, 2, DOWN}}, {}}, + + {6, {}, {{0, 1, DOWN}, {0, 2, DOWN}}}, + {7, {{0, 2, UP}}, {}}, + {9, {{0, 1, UP}}, {}}, + + // Debouncing loses the specific ordering -- both events report simultaneously. + {14, {}, {{0, 1, UP}, {0, 2, UP}}}, + }); + runEvents(); +} + +TEST_F(DebounceTest, OneKeyDelayedScan1) { + addEvents({ /* Time, Inputs, Outputs */ + {0, {{0, 1, DOWN}}, {}}, + + /* Processing is very late */ + {300, {}, {{0, 1, DOWN}}}, + /* Immediately release key */ + {300, {{0, 1, UP}}, {}}, + + {305, {}, {{0, 1, UP}}}, + }); + time_jumps_ = true; + runEvents(); +} + +TEST_F(DebounceTest, OneKeyDelayedScan2) { + addEvents({ /* Time, Inputs, Outputs */ + {0, {{0, 1, DOWN}}, {}}, + + /* Processing is very late */ + {300, {}, {{0, 1, DOWN}}}, + /* Release key after 1ms */ + {301, {{0, 1, UP}}, {}}, + + {306, {}, {{0, 1, UP}}}, + }); + time_jumps_ = true; + runEvents(); +} + +TEST_F(DebounceTest, OneKeyDelayedScan3) { + addEvents({ /* Time, Inputs, Outputs */ + {0, {{0, 1, DOWN}}, {}}, + + /* Release key before debounce expires */ + {300, {{0, 1, UP}}, {}}, + }); + time_jumps_ = true; + runEvents(); +} + +TEST_F(DebounceTest, OneKeyDelayedScan4) { + addEvents({ /* Time, Inputs, Outputs */ + {0, {{0, 1, DOWN}}, {}}, + + /* Processing is a bit late */ + {50, {}, {{0, 1, DOWN}}}, + /* Release key after 1ms */ + {51, {{0, 1, UP}}, {}}, + + {56, {}, {{0, 1, UP}}}, + }); + time_jumps_ = true; + runEvents(); +} diff --git a/quantum/debounce/tests/testlist.mk b/quantum/debounce/tests/testlist.mk index c54c45aa63..f7bd520698 100644 --- a/quantum/debounce/tests/testlist.mk +++ b/quantum/debounce/tests/testlist.mk @@ -1,6 +1,7 @@ TEST_LIST += \ debounce_sym_defer_g \ debounce_sym_defer_pk \ + debounce_sym_defer_pr \ debounce_sym_eager_pk \ debounce_sym_eager_pr \ debounce_asym_eager_defer_pk