diff options
author | Alex Ong <the.onga@gmail.com> | 2019-01-04 19:39:14 +1100 |
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committer | Alex Ong <the.onga@gmail.com> | 2019-01-04 19:39:14 +1100 |
commit | 47c91fc7f75ae0a477e55b687aa0fc30da0a283c (patch) | |
tree | 65ad39452748ff2e6d4a83ce54ede6ca22c9ada9 /keyboards/miniaxe/matrix.c | |
parent | ac9b88e8ccbbf38762871504cd827ff0d941c426 (diff) | |
parent | 563ce3f225d981ce460c12ca5130dfe47af41df0 (diff) |
Merge branch 'master' of https://github.com/qmk/qmk_firmware
Diffstat (limited to 'keyboards/miniaxe/matrix.c')
-rw-r--r-- | keyboards/miniaxe/matrix.c | 641 |
1 files changed, 641 insertions, 0 deletions
diff --git a/keyboards/miniaxe/matrix.c b/keyboards/miniaxe/matrix.c new file mode 100644 index 0000000000..5fec1281df --- /dev/null +++ b/keyboards/miniaxe/matrix.c @@ -0,0 +1,641 @@ +/* +Copyright 2012 Jun Wako <wakojun@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/>. +*/ + +/* + * scan matrix + */ +#include <stdint.h> +#include <stdbool.h> +#include <avr/io.h> +#include "wait.h" +#include "print.h" +#include "debug.h" +#include "util.h" +#include "matrix.h" +#include "split_util.h" +#include "pro_micro.h" +#include "config.h" +#include "timer.h" +#include "split_flags.h" + +#ifdef BACKLIGHT_ENABLE +# include "backlight.h" + extern backlight_config_t backlight_config; +#endif + +#if defined(USE_I2C) || defined(EH) +# include "i2c.h" +#else // USE_SERIAL +# include "serial.h" +#endif + +#ifndef DEBOUNCING_DELAY +# define DEBOUNCING_DELAY 5 +#endif + +#if (DEBOUNCING_DELAY > 0) + static uint16_t debouncing_time; + static bool debouncing = false; +#endif + +#if defined(USE_I2C) || defined(EH) + +#if (MATRIX_COLS <= 8) +# define print_matrix_header() print("\nr/c 01234567\n") +# define print_matrix_row(row) print_bin_reverse8(matrix_get_row(row)) +# define matrix_bitpop(i) bitpop(matrix[i]) +# define ROW_SHIFTER ((uint8_t)1) +#else +# error "Currently only supports 8 COLS" +#endif + +#else // USE_SERIAL + +#if (MATRIX_COLS <= 8) +# define print_matrix_header() print("\nr/c 01234567\n") +# define print_matrix_row(row) print_bin_reverse8(matrix_get_row(row)) +# define matrix_bitpop(i) bitpop(matrix[i]) +# define ROW_SHIFTER ((uint8_t)1) +#elif (MATRIX_COLS <= 16) +# define print_matrix_header() print("\nr/c 0123456789ABCDEF\n") +# define print_matrix_row(row) print_bin_reverse16(matrix_get_row(row)) +# define matrix_bitpop(i) bitpop16(matrix[i]) +# define ROW_SHIFTER ((uint16_t)1) +#elif (MATRIX_COLS <= 32) +# define print_matrix_header() print("\nr/c 0123456789ABCDEF0123456789ABCDEF\n") +# define print_matrix_row(row) print_bin_reverse32(matrix_get_row(row)) +# define matrix_bitpop(i) bitpop32(matrix[i]) +# define ROW_SHIFTER ((uint32_t)1) +#endif + +#endif +static matrix_row_t matrix_debouncing[MATRIX_ROWS]; + +#define ERROR_DISCONNECT_COUNT 5 + +#define ROWS_PER_HAND (MATRIX_ROWS/2) + +static uint8_t error_count = 0; + +#if ((DIODE_DIRECTION == COL2ROW) || (DIODE_DIRECTION == ROW2COL)) +static uint8_t row_pins[MATRIX_ROWS] = MATRIX_ROW_PINS; +static uint8_t col_pins[MATRIX_COLS] = MATRIX_COL_PINS; +#elif (DIODE_DIRECTION == CUSTOM_MATRIX) +static uint8_t row_col_pins[MATRIX_ROWS][MATRIX_COLS] = MATRIX_ROW_COL_PINS; +#endif + +/* matrix state(1:on, 0:off) */ +static matrix_row_t matrix[MATRIX_ROWS]; +static matrix_row_t matrix_debouncing[MATRIX_ROWS]; + +#if (DIODE_DIRECTION == COL2ROW) + static void init_cols(void); + static bool read_cols_on_row(matrix_row_t current_matrix[], uint8_t current_row); + static void unselect_rows(void); + static void select_row(uint8_t row); + static void unselect_row(uint8_t row); +#elif (DIODE_DIRECTION == ROW2COL) + static void init_rows(void); + static bool read_rows_on_col(matrix_row_t current_matrix[], uint8_t current_col); + static void unselect_cols(void); + static void unselect_col(uint8_t col); + static void select_col(uint8_t col); +#elif (DIODE_DIRECTION == CUSTOM_MATRIX) + static void init_cols_rows(void); + static bool read_cols(matrix_row_t current_matrix[], uint8_t current_row); +#endif + +__attribute__ ((weak)) +void matrix_init_kb(void) { + matrix_init_user(); +} + +__attribute__ ((weak)) +void matrix_scan_kb(void) { + matrix_scan_user(); +} + +__attribute__ ((weak)) +void matrix_init_user(void) { +} + +__attribute__ ((weak)) +void matrix_scan_user(void) { +} + +__attribute__ ((weak)) +void matrix_slave_scan_user(void) { +} + +inline +uint8_t matrix_rows(void) +{ + return MATRIX_ROWS; +} + +inline +uint8_t matrix_cols(void) +{ + return MATRIX_COLS; +} + +void matrix_init(void) +{ +#ifdef DISABLE_JTAG + // JTAG disable for PORT F. write JTD bit twice within four cycles. + MCUCR |= (1<<JTD); + MCUCR |= (1<<JTD); +#endif + + debug_enable = true; + debug_matrix = true; + debug_mouse = true; + + // Set pinout for right half if pinout for that half is defined + if (!isLeftHand) { +#ifdef MATRIX_ROW_PINS_RIGHT + const uint8_t row_pins_right[MATRIX_ROWS] = MATRIX_ROW_PINS_RIGHT; + for (uint8_t i = 0; i < MATRIX_ROWS; i++) + row_pins[i] = row_pins_right[i]; +#endif +#ifdef MATRIX_COL_PINS_RIGHT + const uint8_t col_pins_right[MATRIX_COLS] = MATRIX_COL_PINS_RIGHT; + for (uint8_t i = 0; i < MATRIX_COLS; i++) + col_pins[i] = col_pins_right[i]; +#endif + } + + // initialize row and col +#if (DIODE_DIRECTION == COL2ROW) + unselect_rows(); + init_cols(); +#elif (DIODE_DIRECTION == ROW2COL) + unselect_cols(); + init_rows(); +#elif (DIODE_DIRECTION == CUSTOM_MATRIX) + init_cols_rows(); +#endif + + // initialize matrix state: all keys off + for (uint8_t i=0; i < MATRIX_ROWS; i++) { + matrix[i] = 0; + matrix_debouncing[i] = 0; + } + + matrix_init_quantum(); + +} + +uint8_t _matrix_scan(void) +{ + int offset = isLeftHand ? 0 : (ROWS_PER_HAND); +#if (DIODE_DIRECTION == COL2ROW) + // Set row, read cols + for (uint8_t current_row = 0; current_row < ROWS_PER_HAND; current_row++) { +# if (DEBOUNCING_DELAY > 0) + bool matrix_changed = read_cols_on_row(matrix_debouncing+offset, current_row); + + if (matrix_changed) { + debouncing = true; + debouncing_time = timer_read(); + } + +# else + read_cols_on_row(matrix+offset, current_row); +# endif + + } + +#elif (DIODE_DIRECTION == ROW2COL) + // Set col, read rows + for (uint8_t current_col = 0; current_col < MATRIX_COLS; current_col++) { +# if (DEBOUNCING_DELAY > 0) + bool matrix_changed = read_rows_on_col(matrix_debouncing+offset, current_col); + if (matrix_changed) { + debouncing = true; + debouncing_time = timer_read(); + } +# else + read_rows_on_col(matrix+offset, current_col); +# endif + + } + +#elif (DIODE_DIRECTION == CUSTOM_MATRIX) + // Set row, read cols + for (uint8_t current_row = 0; current_row < ROWS_PER_HAND; current_row++) { +# if (DEBOUNCING_DELAY > 0) + bool matrix_changed = read_cols(matrix_debouncing+offset, current_row); + if (matrix_changed) { + debouncing = true; + debouncing_time = timer_read(); + } +# else + read_cols(matrix+offset, current_row); +# endif + } +#endif + +# if (DEBOUNCING_DELAY > 0) + if (debouncing && (timer_elapsed(debouncing_time) > DEBOUNCING_DELAY)) { + for (uint8_t i = 0; i < ROWS_PER_HAND; i++) { + matrix[i+offset] = matrix_debouncing[i+offset]; + } + debouncing = false; + } +# endif + + return 1; +} + +#if defined(USE_I2C) || defined(EH) + +// Get rows from other half over i2c +int i2c_transaction(void) { + int slaveOffset = (isLeftHand) ? (ROWS_PER_HAND) : 0; + int err = 0; + + // write backlight info + #ifdef BACKLIGHT_ENABLE + if (BACKLIT_DIRTY) { + err = i2c_master_start(SLAVE_I2C_ADDRESS + I2C_WRITE); + if (err) goto i2c_error; + + // Backlight location + err = i2c_master_write(I2C_BACKLIT_START); + if (err) goto i2c_error; + + // Write backlight + i2c_master_write(get_backlight_level()); + + BACKLIT_DIRTY = false; + } + #endif + + err = i2c_master_start(SLAVE_I2C_ADDRESS + I2C_WRITE); + if (err) goto i2c_error; + + // start of matrix stored at I2C_KEYMAP_START + err = i2c_master_write(I2C_KEYMAP_START); + if (err) goto i2c_error; + + // Start read + err = i2c_master_start(SLAVE_I2C_ADDRESS + I2C_READ); + if (err) goto i2c_error; + + if (!err) { + int i; + for (i = 0; i < ROWS_PER_HAND-1; ++i) { + matrix[slaveOffset+i] = i2c_master_read(I2C_ACK); + } + matrix[slaveOffset+i] = i2c_master_read(I2C_NACK); + i2c_master_stop(); + } else { +i2c_error: // the cable is disconnceted, or something else went wrong + i2c_reset_state(); + return err; + } + + #ifdef RGBLIGHT_ENABLE + if (RGB_DIRTY) { + err = i2c_master_start(SLAVE_I2C_ADDRESS + I2C_WRITE); + if (err) goto i2c_error; + + // RGB Location + err = i2c_master_write(I2C_RGB_START); + if (err) goto i2c_error; + + uint32_t dword = eeconfig_read_rgblight(); + + // Write RGB + err = i2c_master_write_data(&dword, 4); + if (err) goto i2c_error; + + RGB_DIRTY = false; + i2c_master_stop(); + } + #endif + + return 0; +} + +#else // USE_SERIAL + + +typedef struct _Serial_s2m_buffer_t { + // TODO: if MATRIX_COLS > 8 change to uint8_t packed_matrix[] for pack/unpack + matrix_row_t smatrix[ROWS_PER_HAND]; +} Serial_s2m_buffer_t; + +volatile Serial_s2m_buffer_t serial_s2m_buffer = {}; +volatile Serial_m2s_buffer_t serial_m2s_buffer = {}; +uint8_t volatile status0 = 0; + +SSTD_t transactions[] = { + { (uint8_t *)&status0, + sizeof(serial_m2s_buffer), (uint8_t *)&serial_m2s_buffer, + sizeof(serial_s2m_buffer), (uint8_t *)&serial_s2m_buffer + } +}; + +void serial_master_init(void) +{ soft_serial_initiator_init(transactions, TID_LIMIT(transactions)); } + +void serial_slave_init(void) +{ soft_serial_target_init(transactions, TID_LIMIT(transactions)); } + +int serial_transaction(void) { + int slaveOffset = (isLeftHand) ? (ROWS_PER_HAND) : 0; + + if (soft_serial_transaction()) { + return 1; + } + + // TODO: if MATRIX_COLS > 8 change to unpack() + for (int i = 0; i < ROWS_PER_HAND; ++i) { + matrix[slaveOffset+i] = serial_s2m_buffer.smatrix[i]; + } + + #ifdef RGBLIGHT_ENABLE + // Code to send RGB over serial goes here (not implemented yet) + #endif + + #ifdef BACKLIGHT_ENABLE + // Write backlight level for slave to read + serial_m2s_buffer.backlight_level = backlight_config.enable ? backlight_config.level : 0; + #endif + + return 0; +} +#endif + +uint8_t matrix_scan(void) +{ + uint8_t ret = _matrix_scan(); + +#if defined(USE_I2C) || defined(EH) + if( i2c_transaction() ) { +#else // USE_SERIAL + if( serial_transaction() ) { +#endif + + error_count++; + + if (error_count > ERROR_DISCONNECT_COUNT) { + // reset other half if disconnected + int slaveOffset = (isLeftHand) ? (ROWS_PER_HAND) : 0; + for (int i = 0; i < ROWS_PER_HAND; ++i) { + matrix[slaveOffset+i] = 0; + } + } + } else { + error_count = 0; + } + matrix_scan_quantum(); + return ret; +} + +void matrix_slave_scan(void) { + _matrix_scan(); + + int offset = (isLeftHand) ? 0 : ROWS_PER_HAND; + +#if defined(USE_I2C) || defined(EH) + for (int i = 0; i < ROWS_PER_HAND; ++i) { + i2c_slave_buffer[I2C_KEYMAP_START+i] = matrix[offset+i]; + } +#else // USE_SERIAL + // TODO: if MATRIX_COLS > 8 change to pack() + for (int i = 0; i < ROWS_PER_HAND; ++i) { + serial_s2m_buffer.smatrix[i] = matrix[offset+i]; + } +#endif + matrix_slave_scan_user(); +} + +bool matrix_is_modified(void) +{ + if (debouncing) return false; + return true; +} + +inline +bool matrix_is_on(uint8_t row, uint8_t col) +{ + return (matrix[row] & ((matrix_row_t)1<<col)); +} + +inline +matrix_row_t matrix_get_row(uint8_t row) +{ + return matrix[row]; +} + +void matrix_print(void) +{ + print("\nr/c 0123456789ABCDEF\n"); + for (uint8_t row = 0; row < MATRIX_ROWS; row++) { + phex(row); print(": "); + pbin_reverse16(matrix_get_row(row)); + print("\n"); + } +} + +uint8_t matrix_key_count(void) +{ + uint8_t count = 0; + for (uint8_t i = 0; i < MATRIX_ROWS; i++) { + count += bitpop16(matrix[i]); + } + return count; +} + +#if (DIODE_DIRECTION == COL2ROW) + +static void init_cols(void) +{ + for(uint8_t x = 0; x < MATRIX_COLS; x++) { + uint8_t pin = col_pins[x]; + _SFR_IO8((pin >> 4) + 1) &= ~_BV(pin & 0xF); // IN + _SFR_IO8((pin >> 4) + 2) |= _BV(pin & 0xF); // HI + } +} + +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 selecton to stabilize + select_row(current_row); + wait_us(30); + + // For each col... + for(uint8_t col_index = 0; col_index < MATRIX_COLS; col_index++) { + + // Select the col pin to read (active low) + uint8_t pin = col_pins[col_index]; + uint8_t pin_state = (_SFR_IO8(pin >> 4) & _BV(pin & 0xF)); + + // Populate the matrix row with the state of the col pin + current_matrix[current_row] |= pin_state ? 0 : (ROW_SHIFTER << col_index); + } + + // Unselect row + unselect_row(current_row); + + return (last_row_value != current_matrix[current_row]); +} + +static void select_row(uint8_t row) +{ + uint8_t pin = row_pins[row]; + _SFR_IO8((pin >> 4) + 1) |= _BV(pin & 0xF); // OUT + _SFR_IO8((pin >> 4) + 2) &= ~_BV(pin & 0xF); // LOW +} + +static void unselect_row(uint8_t row) +{ + uint8_t pin = row_pins[row]; + _SFR_IO8((pin >> 4) + 1) &= ~_BV(pin & 0xF); // IN + _SFR_IO8((pin >> 4) + 2) |= _BV(pin & 0xF); // HI +} + +static void unselect_rows(void) +{ + for(uint8_t x = 0; x < ROWS_PER_HAND; x++) { + uint8_t pin = row_pins[x]; + _SFR_IO8((pin >> 4) + 1) &= ~_BV(pin & 0xF); // IN + _SFR_IO8((pin >> 4) + 2) |= _BV(pin & 0xF); // HI + } +} + +#elif (DIODE_DIRECTION == ROW2COL) + +static void init_rows(void) +{ + for(uint8_t x = 0; x < ROWS_PER_HAND; x++) { + uint8_t pin = row_pins[x]; + _SFR_IO8((pin >> 4) + 1) &= ~_BV(pin & 0xF); // IN + _SFR_IO8((pin >> 4) + 2) |= _BV(pin & 0xF); // HI + } +} + +static bool read_rows_on_col(matrix_row_t current_matrix[], uint8_t current_col) +{ + bool matrix_changed = false; + + // Select col and wait for col selecton to stabilize + select_col(current_col); + wait_us(30); + + // For each row... + for(uint8_t row_index = 0; row_index < ROWS_PER_HAND; row_index++) + { + + // Store last value of row prior to reading + matrix_row_t last_row_value = current_matrix[row_index]; + + // Check row pin state + if ((_SFR_IO8(row_pins[row_index] >> 4) & _BV(row_pins[row_index] & 0xF)) == 0) + { + // Pin LO, set col bit + current_matrix[row_index] |= (ROW_SHIFTER << current_col); + } + else + { + // Pin HI, clear col bit + current_matrix[row_index] &= ~(ROW_SHIFTER << current_col); + } + + // Determine if the matrix changed state + if ((last_row_value != current_matrix[row_index]) && !(matrix_changed)) + { + matrix_changed = true; + } + } + + // Unselect col + unselect_col(current_col); + + return matrix_changed; +} + +static void select_col(uint8_t col) +{ + uint8_t pin = col_pins[col]; + _SFR_IO8((pin >> 4) + 1) |= _BV(pin & 0xF); // OUT + _SFR_IO8((pin >> 4) + 2) &= ~_BV(pin & 0xF); // LOW +} + +static void unselect_col(uint8_t col) +{ + uint8_t pin = col_pins[col]; + _SFR_IO8((pin >> 4) + 1) &= ~_BV(pin & 0xF); // IN + _SFR_IO8((pin >> 4) + 2) |= _BV(pin & 0xF); // HI +} + +static void unselect_cols(void) +{ + for(uint8_t x = 0; x < MATRIX_COLS; x++) { + uint8_t pin = col_pins[x]; + _SFR_IO8((pin >> 4) + 1) &= ~_BV(pin & 0xF); // IN + _SFR_IO8((pin >> 4) + 2) |= _BV(pin & 0xF); // HI + } +} + +#elif (DIODE_DIRECTION == CUSTOM_MATRIX) + +static void init_cols_rows(void) +{ + for(int row = 0; row < MATRIX_ROWS; row++) { + for(int col = 0; col < MATRIX_COLS; col++) { + uint8_t pin = row_col_pins[row][col]; + if(pin == NO_PIN) { + continue; + } + // DDxn set 0 for input + _SFR_IO8((pin >> 4) + 1) &= ~_BV(pin & 0xF); + // PORTxn set 1 for input/pullup + _SFR_IO8((pin >> 4) + 2) |= _BV(pin & 0xF); + } + } +} + +static bool read_cols(matrix_row_t current_matrix[], uint8_t current_row) +{ + matrix_row_t last_row_value = current_matrix[current_row]; + current_matrix[current_row] = 0; + + for(uint8_t col_index = 0; col_index < MATRIX_COLS; col_index++) { + uint8_t pin = row_col_pins[current_row][col_index]; + if(pin == NO_PIN) { + current_matrix[current_row] |= 0; + } + else { + uint8_t pin_state = (_SFR_IO8(pin >> 4) & _BV(pin & 0xF)); + current_matrix[current_row] |= pin_state ? 0 : (ROW_SHIFTER << col_index); + } + } + + return (last_row_value != current_matrix[current_row]); +} + +#endif |