diff options
Diffstat (limited to 'quantum')
33 files changed, 3371 insertions, 630 deletions
diff --git a/quantum/crc.c b/quantum/crc.c new file mode 100644 index 0000000000..0d8b9d6017 --- /dev/null +++ b/quantum/crc.c @@ -0,0 +1,59 @@ +/* Copyright 2021 QMK + * + * 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 "crc.h" + +__attribute__((weak)) void crc_init(void){ + /* Software implementation nothing todo here. */ +}; + +#if defined(CRC8_USE_TABLE) +/** + * Static table used for the table_driven implementation. + */ +static const crc_t crc_table[256] = {0x00, 0x07, 0x0e, 0x09, 0x1c, 0x1b, 0x12, 0x15, 0x38, 0x3f, 0x36, 0x31, 0x24, 0x23, 0x2a, 0x2d, 0x70, 0x77, 0x7e, 0x79, 0x6c, 0x6b, 0x62, 0x65, 0x48, 0x4f, 0x46, 0x41, 0x54, 0x53, 0x5a, 0x5d, 0xe0, 0xe7, 0xee, 0xe9, 0xfc, 0xfb, 0xf2, 0xf5, 0xd8, 0xdf, 0xd6, 0xd1, 0xc4, 0xc3, 0xca, 0xcd, 0x90, 0x97, 0x9e, 0x99, 0x8c, 0x8b, 0x82, 0x85, 0xa8, 0xaf, 0xa6, 0xa1, 0xb4, 0xb3, 0xba, 0xbd, 0xc7, 0xc0, 0xc9, 0xce, 0xdb, 0xdc, 0xd5, 0xd2, 0xff, 0xf8, 0xf1, 0xf6, 0xe3, 0xe4, 0xed, 0xea, 0xb7, 0xb0, 0xb9, 0xbe, 0xab, 0xac, 0xa5, 0xa2, 0x8f, 0x88, 0x81, 0x86, 0x93, 0x94, 0x9d, 0x9a, 0x27, 0x20, 0x29, 0x2e, 0x3b, 0x3c, 0x35, 0x32, 0x1f, 0x18, 0x11, 0x16, 0x03, 0x04, 0x0d, 0x0a, 0x57, 0x50, 0x59, 0x5e, 0x4b, 0x4c, 0x45, 0x42, 0x6f, 0x68, 0x61, 0x66, 0x73, 0x74, 0x7d, 0x7a, + 0x89, 0x8e, 0x87, 0x80, 0x95, 0x92, 0x9b, 0x9c, 0xb1, 0xb6, 0xbf, 0xb8, 0xad, 0xaa, 0xa3, 0xa4, 0xf9, 0xfe, 0xf7, 0xf0, 0xe5, 0xe2, 0xeb, 0xec, 0xc1, 0xc6, 0xcf, 0xc8, 0xdd, 0xda, 0xd3, 0xd4, 0x69, 0x6e, 0x67, 0x60, 0x75, 0x72, 0x7b, 0x7c, 0x51, 0x56, 0x5f, 0x58, 0x4d, 0x4a, 0x43, 0x44, 0x19, 0x1e, 0x17, 0x10, 0x05, 0x02, 0x0b, 0x0c, 0x21, 0x26, 0x2f, 0x28, 0x3d, 0x3a, 0x33, 0x34, 0x4e, 0x49, 0x40, 0x47, 0x52, 0x55, 0x5c, 0x5b, 0x76, 0x71, 0x78, 0x7f, 0x6a, 0x6d, 0x64, 0x63, 0x3e, 0x39, 0x30, 0x37, 0x22, 0x25, 0x2c, 0x2b, 0x06, 0x01, 0x08, 0x0f, 0x1a, 0x1d, 0x14, 0x13, 0xae, 0xa9, 0xa0, 0xa7, 0xb2, 0xb5, 0xbc, 0xbb, 0x96, 0x91, 0x98, 0x9f, 0x8a, 0x8d, 0x84, 0x83, 0xde, 0xd9, 0xd0, 0xd7, 0xc2, 0xc5, 0xcc, 0xcb, 0xe6, 0xe1, 0xe8, 0xef, 0xfa, 0xfd, 0xf4, 0xf3}; + +__attribute__((weak)) uint8_t crc8(const void *data, size_t data_len) { + const uint8_t *d = (const uint8_t *)data; + crc_t crc = 0xff; + size_t tbl_idx; + + while (data_len--) { + tbl_idx = crc ^ *d; + crc = crc_table[tbl_idx] & 0xff; + d++; + } + return crc & 0xff; +} +#else +__attribute__((weak)) uint8_t crc8(const void *data, size_t data_len) { + const uint8_t *d = (const uint8_t *)data; + crc_t crc = 0xff; + size_t i, j; + + for (i = 0; i < data_len; i++) { + crc ^= d[i]; + for (j = 0; j < 8; j++) { + if ((crc & 0x80) != 0) + crc = (crc_t)((crc << 1) ^ 0x31); + else + crc <<= 1; + } + } + return crc; +} +#endif
\ No newline at end of file diff --git a/quantum/crc.h b/quantum/crc.h new file mode 100644 index 0000000000..c17f5888e2 --- /dev/null +++ b/quantum/crc.h @@ -0,0 +1,44 @@ +/* Copyright 2021 QMK + * + * 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" + +/** + * The type of the CRC values. + * + * This type must be big enough to contain at least 8 bits. + */ +#if defined(CRC8_OPTIMIZE_SPEED) +typedef uint_fast8_t crc_t; +#else +typedef uint_least8_t crc_t; +#endif + +/** + * Initialize crc subsystem. + */ +__attribute__((weak)) void crc_init(void); + +/** + * Generate CRC8 value from given data. + * + * \param[in] data Pointer to a buffer of \a data_len bytes. + * \param[in] data_len Number of bytes in the \a data buffer. + * \return The calculated crc value. + */ +__attribute__((weak)) uint8_t crc8(const void *data, size_t data_len);
\ No newline at end of file diff --git a/quantum/debounce.h b/quantum/debounce.h index 9ca05c6824..5043868289 100644 --- a/quantum/debounce.h +++ b/quantum/debounce.h @@ -9,3 +9,5 @@ void debounce(matrix_row_t raw[], matrix_row_t cooked[], uint8_t num_rows, bool bool debounce_active(void); void debounce_init(uint8_t num_rows); + +void debounce_free(void); diff --git a/quantum/debounce/asym_eager_defer_pk.c b/quantum/debounce/asym_eager_defer_pk.c new file mode 100644 index 0000000000..24380dc5e5 --- /dev/null +++ b/quantum/debounce/asym_eager_defer_pk.c @@ -0,0 +1,171 @@ +/* + * Copyright 2017 Alex Ong <the.onga@gmail.com> + * Copyright 2020 Andrei Purdea <andrei@purdea.ro> + * 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 <http://www.gnu.org/licenses/>. + */ + +/* +Basic symmetric per-key algorithm. Uses an 8-bit counter per key. +When no state changes have occured for DEBOUNCE milliseconds, we push the state. +*/ + +#include "matrix.h" +#include "timer.h" +#include "quantum.h" +#include <stdlib.h> + +#ifdef PROTOCOL_CHIBIOS +# if CH_CFG_USE_MEMCORE == FALSE +# error ChibiOS is configured without a memory allocator. Your keyboard may have set `#define CH_CFG_USE_MEMCORE FALSE`, which is incompatible with this debounce algorithm. +# endif +#endif + +#ifndef DEBOUNCE +# define DEBOUNCE 5 +#endif + +// Maximum debounce: 127ms +#if DEBOUNCE > 127 +# undef DEBOUNCE +# define DEBOUNCE 127 +#endif + +#define ROW_SHIFTER ((matrix_row_t)1) + +typedef struct { + bool pressed : 1; + uint8_t time : 7; +} debounce_counter_t; + +#if DEBOUNCE > 0 +static debounce_counter_t *debounce_counters; +static fast_timer_t last_time; +static bool counters_need_update; +static bool matrix_need_update; + +#define DEBOUNCE_ELAPSED 0 + +static void update_debounce_counters_and_transfer_if_expired(matrix_row_t raw[], matrix_row_t cooked[], uint8_t num_rows, uint8_t elapsed_time); +static void transfer_matrix_values(matrix_row_t raw[], matrix_row_t cooked[], uint8_t num_rows); + +// we use num_rows rather than MATRIX_ROWS to support split keyboards +void debounce_init(uint8_t num_rows) { + debounce_counters = malloc(num_rows * MATRIX_COLS * sizeof(debounce_counter_t)); + int i = 0; + for (uint8_t r = 0; r < num_rows; r++) { + for (uint8_t c = 0; c < MATRIX_COLS; c++) { + debounce_counters[i++].time = DEBOUNCE_ELAPSED; + } + } +} + +void debounce_free(void) { + free(debounce_counters); + debounce_counters = NULL; +} + +void debounce(matrix_row_t raw[], matrix_row_t cooked[], uint8_t num_rows, bool changed) { + bool updated_last = false; + + if (counters_need_update) { + fast_timer_t now = timer_read_fast(); + fast_timer_t elapsed_time = TIMER_DIFF_FAST(now, last_time); + + last_time = now; + updated_last = true; + if (elapsed_time > UINT8_MAX) { + elapsed_time = UINT8_MAX; + } + + if (elapsed_time > 0) { + update_debounce_counters_and_transfer_if_expired(raw, cooked, num_rows, elapsed_time); + } + } + + if (changed || matrix_need_update) { + if (!updated_last) { + last_time = timer_read_fast(); + } + + transfer_matrix_values(raw, cooked, num_rows); + } +} + +static void update_debounce_counters_and_transfer_if_expired(matrix_row_t raw[], matrix_row_t cooked[], uint8_t num_rows, uint8_t elapsed_time) { + debounce_counter_t *debounce_pointer = debounce_counters; + + counters_need_update = false; + matrix_need_update = false; + + for (uint8_t row = 0; row < num_rows; row++) { + for (uint8_t col = 0; col < MATRIX_COLS; col++) { + matrix_row_t col_mask = (ROW_SHIFTER << col); + + if (debounce_pointer->time != DEBOUNCE_ELAPSED) { + if (debounce_pointer->time <= elapsed_time) { + debounce_pointer->time = DEBOUNCE_ELAPSED; + + if (debounce_pointer->pressed) { + // key-down: eager + matrix_need_update = true; + } else { + // key-up: defer + cooked[row] = (cooked[row] & ~col_mask) | (raw[row] & col_mask); + } + } else { + debounce_pointer->time -= elapsed_time; + counters_need_update = true; + } + } + debounce_pointer++; + } + } +} + +static void transfer_matrix_values(matrix_row_t raw[], matrix_row_t cooked[], uint8_t num_rows) { + debounce_counter_t *debounce_pointer = debounce_counters; + + for (uint8_t row = 0; row < num_rows; row++) { + matrix_row_t delta = raw[row] ^ cooked[row]; + for (uint8_t col = 0; col < MATRIX_COLS; col++) { + matrix_row_t col_mask = (ROW_SHIFTER << col); + + if (delta & col_mask) { + if (debounce_pointer->time == DEBOUNCE_ELAPSED) { + debounce_pointer->pressed = (raw[row] & col_mask); + debounce_pointer->time = DEBOUNCE; + counters_need_update = true; + + if (debounce_pointer->pressed) { + // key-down: eager + cooked[row] ^= col_mask; + } + } + } else if (debounce_pointer->time != DEBOUNCE_ELAPSED) { + if (!debounce_pointer->pressed) { + // key-up: defer + debounce_pointer->time = DEBOUNCE_ELAPSED; + } + } + debounce_pointer++; + } + } +} + +bool debounce_active(void) { return true; } +#else +# include "none.c" +#endif diff --git a/quantum/debounce/none.c b/quantum/debounce/none.c new file mode 100644 index 0000000000..b03892bc5b --- /dev/null +++ b/quantum/debounce/none.c @@ -0,0 +1,31 @@ +/* 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 <http://www.gnu.org/licenses/>. + */ + +#include "matrix.h" +#include "quantum.h" +#include <stdlib.h> + +void debounce_init(uint8_t num_rows) {} + +void debounce(matrix_row_t raw[], matrix_row_t cooked[], uint8_t num_rows, bool changed) { + for (int i = 0; i < num_rows; i++) { + cooked[i] = raw[i]; + } +} + +bool debounce_active(void) { return false; } + +void debounce_free(void) {} diff --git a/quantum/debounce/sym_defer_g.c b/quantum/debounce/sym_defer_g.c index 3ed9055d2a..fbefd55ede 100644 --- a/quantum/debounce/sym_defer_g.c +++ b/quantum/debounce/sym_defer_g.c @@ -1,5 +1,6 @@ /* Copyright 2017 Alex Ong<the.onga@gmail.com> +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 @@ -23,30 +24,29 @@ When no state changes have occured for DEBOUNCE milliseconds, we push the state. # define DEBOUNCE 5 #endif -void debounce_init(uint8_t num_rows) {} +#if DEBOUNCE > 0 static bool debouncing = false; +static fast_timer_t debouncing_time; -#if DEBOUNCE > 0 -static uint16_t debouncing_time; -void debounce(matrix_row_t raw[], matrix_row_t cooked[], uint8_t num_rows, bool changed) { +void debounce_init(uint8_t num_rows) {} + +void debounce(matrix_row_t raw[], matrix_row_t cooked[], uint8_t num_rows, bool changed) { if (changed) { debouncing = true; - debouncing_time = timer_read(); + debouncing_time = timer_read_fast(); } - if (debouncing && timer_elapsed(debouncing_time) > DEBOUNCE) { + if (debouncing && timer_elapsed_fast(debouncing_time) >= DEBOUNCE) { for (int i = 0; i < num_rows; i++) { cooked[i] = raw[i]; } debouncing = false; } } -#else // no debouncing. -void debounce(matrix_row_t raw[], matrix_row_t cooked[], uint8_t num_rows, bool changed) { - for (int i = 0; i < num_rows; i++) { - cooked[i] = raw[i]; - } -} -#endif bool debounce_active(void) { return debouncing; } + +void debounce_free(void) {} +#else // no debouncing. +# include "none.c" +#endif diff --git a/quantum/debounce/sym_defer_pk.c b/quantum/debounce/sym_defer_pk.c index 60513f98e1..626a9be841 100644 --- a/quantum/debounce/sym_defer_pk.c +++ b/quantum/debounce/sym_defer_pk.c @@ -1,6 +1,7 @@ /* Copyright 2017 Alex Ong<the.onga@gmail.com> Copyright 2020 Andrei Purdea<andrei@purdea.ro> +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 @@ -33,28 +34,25 @@ When no state changes have occured for DEBOUNCE milliseconds, we push the state. # define DEBOUNCE 5 #endif +// Maximum debounce: 255ms +#if DEBOUNCE > UINT8_MAX +# undef DEBOUNCE +# define DEBOUNCE UINT8_MAX +#endif + #define ROW_SHIFTER ((matrix_row_t)1) -#define debounce_counter_t uint8_t +typedef uint8_t debounce_counter_t; +#if DEBOUNCE > 0 static debounce_counter_t *debounce_counters; +static fast_timer_t last_time; static bool counters_need_update; -#define DEBOUNCE_ELAPSED 251 -#define MAX_DEBOUNCE (DEBOUNCE_ELAPSED - 1) - -static uint8_t wrapping_timer_read(void) { - static uint16_t time = 0; - static uint8_t last_result = 0; - uint16_t new_time = timer_read(); - uint16_t diff = new_time - time; - time = new_time; - last_result = (last_result + diff) % (MAX_DEBOUNCE + 1); - return last_result; -} +#define DEBOUNCE_ELAPSED 0 -void update_debounce_counters_and_transfer_if_expired(matrix_row_t raw[], matrix_row_t cooked[], uint8_t num_rows, uint8_t current_time); -void start_debounce_counters(matrix_row_t raw[], matrix_row_t cooked[], uint8_t num_rows, uint8_t current_time); +static void update_debounce_counters_and_transfer_if_expired(matrix_row_t raw[], matrix_row_t cooked[], uint8_t num_rows, uint8_t elapsed_time); +static void start_debounce_counters(matrix_row_t raw[], matrix_row_t cooked[], uint8_t num_rows); // we use num_rows rather than MATRIX_ROWS to support split keyboards void debounce_init(uint8_t num_rows) { @@ -67,27 +65,49 @@ void debounce_init(uint8_t num_rows) { } } +void debounce_free(void) { + free(debounce_counters); + debounce_counters = NULL; +} + void debounce(matrix_row_t raw[], matrix_row_t cooked[], uint8_t num_rows, bool changed) { - uint8_t current_time = wrapping_timer_read(); + bool updated_last = false; + if (counters_need_update) { - update_debounce_counters_and_transfer_if_expired(raw, cooked, num_rows, current_time); + fast_timer_t now = timer_read_fast(); + fast_timer_t elapsed_time = TIMER_DIFF_FAST(now, last_time); + + last_time = now; + updated_last = true; + if (elapsed_time > UINT8_MAX) { + elapsed_time = UINT8_MAX; + } + + if (elapsed_time > 0) { + update_debounce_counters_and_transfer_if_expired(raw, cooked, num_rows, elapsed_time); + } } if (changed) { - start_debounce_counters(raw, cooked, num_rows, current_time); + if (!updated_last) { + last_time = timer_read_fast(); + } + + start_debounce_counters(raw, cooked, num_rows); } } -void update_debounce_counters_and_transfer_if_expired(matrix_row_t raw[], matrix_row_t cooked[], uint8_t num_rows, uint8_t current_time) { +static void update_debounce_counters_and_transfer_if_expired(matrix_row_t raw[], matrix_row_t cooked[], uint8_t num_rows, uint8_t elapsed_time) { counters_need_update = false; debounce_counter_t *debounce_pointer = debounce_counters; for (uint8_t row = 0; row < num_rows; row++) { for (uint8_t col = 0; col < MATRIX_COLS; col++) { if (*debounce_pointer != DEBOUNCE_ELAPSED) { - if (TIMER_DIFF(current_time, *debounce_pointer, MAX_DEBOUNCE) >= DEBOUNCE) { + if (*debounce_pointer <= elapsed_time) { *debounce_pointer = DEBOUNCE_ELAPSED; cooked[row] = (cooked[row] & ~(ROW_SHIFTER << col)) | (raw[row] & (ROW_SHIFTER << col)); } else { + *debounce_pointer -= elapsed_time; counters_need_update = true; } } @@ -96,14 +116,14 @@ void update_debounce_counters_and_transfer_if_expired(matrix_row_t raw[], matrix } } -void start_debounce_counters(matrix_row_t raw[], matrix_row_t cooked[], uint8_t num_rows, uint8_t current_time) { +static void start_debounce_counters(matrix_row_t raw[], matrix_row_t cooked[], uint8_t num_rows) { debounce_counter_t *debounce_pointer = debounce_counters; for (uint8_t row = 0; row < num_rows; row++) { matrix_row_t delta = raw[row] ^ cooked[row]; for (uint8_t col = 0; col < MATRIX_COLS; col++) { if (delta & (ROW_SHIFTER << col)) { if (*debounce_pointer == DEBOUNCE_ELAPSED) { - *debounce_pointer = current_time; + *debounce_pointer = DEBOUNCE; counters_need_update = true; } } else { @@ -115,3 +135,6 @@ void start_debounce_counters(matrix_row_t raw[], matrix_row_t cooked[], uint8_t } bool debounce_active(void) { return true; } +#else +# include "none.c" +#endif diff --git a/quantum/debounce/sym_eager_pk.c b/quantum/debounce/sym_eager_pk.c index e66cf92d79..15a3242e68 100644 --- a/quantum/debounce/sym_eager_pk.c +++ b/quantum/debounce/sym_eager_pk.c @@ -1,5 +1,6 @@ /* Copyright 2017 Alex Ong<the.onga@gmail.com> +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 @@ -33,29 +34,26 @@ No further inputs are accepted until DEBOUNCE milliseconds have occurred. # define DEBOUNCE 5 #endif +// Maximum debounce: 255ms +#if DEBOUNCE > UINT8_MAX +# undef DEBOUNCE +# define DEBOUNCE UINT8_MAX +#endif + #define ROW_SHIFTER ((matrix_row_t)1) -#define debounce_counter_t uint8_t +typedef uint8_t debounce_counter_t; +#if DEBOUNCE > 0 static debounce_counter_t *debounce_counters; +static fast_timer_t last_time; static bool counters_need_update; static bool matrix_need_update; -#define DEBOUNCE_ELAPSED 251 -#define MAX_DEBOUNCE (DEBOUNCE_ELAPSED - 1) - -static uint8_t wrapping_timer_read(void) { - static uint16_t time = 0; - static uint8_t last_result = 0; - uint16_t new_time = timer_read(); - uint16_t diff = new_time - time; - time = new_time; - last_result = (last_result + diff) % (MAX_DEBOUNCE + 1); - return last_result; -} +#define DEBOUNCE_ELAPSED 0 -void update_debounce_counters(uint8_t num_rows, uint8_t current_time); -void transfer_matrix_values(matrix_row_t raw[], matrix_row_t cooked[], uint8_t num_rows, uint8_t current_time); +static void update_debounce_counters(uint8_t num_rows, uint8_t elapsed_time); +static void transfer_matrix_values(matrix_row_t raw[], matrix_row_t cooked[], uint8_t num_rows); // we use num_rows rather than MATRIX_ROWS to support split keyboards void debounce_init(uint8_t num_rows) { @@ -68,27 +66,51 @@ void debounce_init(uint8_t num_rows) { } } +void debounce_free(void) { + free(debounce_counters); + debounce_counters = NULL; +} + void debounce(matrix_row_t raw[], matrix_row_t cooked[], uint8_t num_rows, bool changed) { - uint8_t current_time = wrapping_timer_read(); + bool updated_last = false; + if (counters_need_update) { - update_debounce_counters(num_rows, current_time); + fast_timer_t now = timer_read_fast(); + fast_timer_t elapsed_time = TIMER_DIFF_FAST(now, last_time); + + last_time = now; + updated_last = true; + if (elapsed_time > UINT8_MAX) { + elapsed_time = UINT8_MAX; + } + + if (elapsed_time > 0) { + update_debounce_counters(num_rows, elapsed_time); + } } if (changed || matrix_need_update) { - transfer_matrix_values(raw, cooked, num_rows, current_time); + if (!updated_last) { + last_time = timer_read_fast(); + } + + transfer_matrix_values(raw, cooked, num_rows); } } // If the current time is > debounce counter, set the counter to enable input. -void update_debounce_counters(uint8_t num_rows, uint8_t current_time) { +static void update_debounce_counters(uint8_t num_rows, uint8_t elapsed_time) { counters_need_update = false; + matrix_need_update = false; debounce_counter_t *debounce_pointer = debounce_counters; for (uint8_t row = 0; row < num_rows; row++) { for (uint8_t col = 0; col < MATRIX_COLS; col++) { if (*debounce_pointer != DEBOUNCE_ELAPSED) { - if (TIMER_DIFF(current_time, *debounce_pointer, MAX_DEBOUNCE) >= DEBOUNCE) { + if (*debounce_pointer <= elapsed_time) { *debounce_pointer = DEBOUNCE_ELAPSED; + matrix_need_update = true; } else { + *debounce_pointer -= elapsed_time; counters_need_update = true; } } @@ -98,8 +120,7 @@ void update_debounce_counters(uint8_t num_rows, uint8_t current_time) { } // upload from raw_matrix to final matrix; -void transfer_matrix_values(matrix_row_t raw[], matrix_row_t cooked[], uint8_t num_rows, uint8_t current_time) { - matrix_need_update = false; +static void transfer_matrix_values(matrix_row_t raw[], matrix_row_t cooked[], uint8_t num_rows) { debounce_counter_t *debounce_pointer = debounce_counters; for (uint8_t row = 0; row < num_rows; row++) { matrix_row_t delta = raw[row] ^ cooked[row]; @@ -108,11 +129,9 @@ void transfer_matrix_values(matrix_row_t raw[], matrix_row_t cooked[], uint8_t n matrix_row_t col_mask = (ROW_SHIFTER << col); if (delta & col_mask) { if (*debounce_pointer == DEBOUNCE_ELAPSED) { - *debounce_pointer = current_time; + *debounce_pointer = DEBOUNCE; counters_need_update = true; existing_row ^= col_mask; // flip the bit. - } else { - matrix_need_update = true; } } debounce_pointer++; @@ -122,3 +141,6 @@ void transfer_matrix_values(matrix_row_t raw[], matrix_row_t cooked[], uint8_t n } bool debounce_active(void) { return true; } +#else +# include "none.c" +#endif diff --git a/quantum/debounce/sym_eager_pr.c b/quantum/debounce/sym_eager_pr.c index 20ccb46f1d..2ad592c5a6 100644 --- a/quantum/debounce/sym_eager_pr.c +++ b/quantum/debounce/sym_eager_pr.c @@ -1,5 +1,6 @@ /* Copyright 2019 Alex Ong<the.onga@gmail.com> +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 @@ -33,27 +34,25 @@ No further inputs are accepted until DEBOUNCE milliseconds have occurred. # define DEBOUNCE 5 #endif -#define debounce_counter_t uint8_t +// Maximum debounce: 255ms +#if DEBOUNCE > UINT8_MAX +# undef DEBOUNCE +# define DEBOUNCE UINT8_MAX +#endif + +typedef uint8_t debounce_counter_t; + +#if DEBOUNCE > 0 static bool matrix_need_update; static debounce_counter_t *debounce_counters; +static fast_timer_t last_time; static bool counters_need_update; -#define DEBOUNCE_ELAPSED 251 -#define MAX_DEBOUNCE (DEBOUNCE_ELAPSED - 1) - -static uint8_t wrapping_timer_read(void) { - static uint16_t time = 0; - static uint8_t last_result = 0; - uint16_t new_time = timer_read(); - uint16_t diff = new_time - time; - time = new_time; - last_result = (last_result + diff) % (MAX_DEBOUNCE + 1); - return last_result; -} +#define DEBOUNCE_ELAPSED 0 -void update_debounce_counters(uint8_t num_rows, uint8_t current_time); -void transfer_matrix_values(matrix_row_t raw[], matrix_row_t cooked[], uint8_t num_rows, uint8_t current_time); +static void update_debounce_counters(uint8_t num_rows, uint8_t elapsed_time); +static void transfer_matrix_values(matrix_row_t raw[], matrix_row_t cooked[], uint8_t num_rows); // we use num_rows rather than MATRIX_ROWS to support split keyboards void debounce_init(uint8_t num_rows) { @@ -63,27 +62,50 @@ void debounce_init(uint8_t num_rows) { } } +void debounce_free(void) { + free(debounce_counters); + debounce_counters = NULL; +} + void debounce(matrix_row_t raw[], matrix_row_t cooked[], uint8_t num_rows, bool changed) { - uint8_t current_time = wrapping_timer_read(); - bool needed_update = counters_need_update; + bool updated_last = false; |