Change Phantom matrix scan to be similar to GH60.
This commit is contained in:
Mathias Andersson
parent
71fabf72e0
commit
2d31fcf187
@ -27,91 +27,10 @@ static uint8_t debouncing = DEBOUNCE;
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static matrix_row_t matrix[MATRIX_ROWS];
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static matrix_row_t matrix_debouncing[MATRIX_ROWS];
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#define _DDRA (uint8_t *const)&DDRA
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#define _DDRB (uint8_t *const)&DDRB
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#define _DDRC (uint8_t *const)&DDRC
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#define _DDRD (uint8_t *const)&DDRD
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#define _DDRE (uint8_t *const)&DDRE
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#define _DDRF (uint8_t *const)&DDRF
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#define _PINA (uint8_t *const)&PINA
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#define _PINB (uint8_t *const)&PINB
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#define _PINC (uint8_t *const)&PINC
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#define _PIND (uint8_t *const)&PIND
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#define _PINE (uint8_t *const)&PINE
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#define _PINF (uint8_t *const)&PINF
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#define _PORTA (uint8_t *const)&PORTA
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#define _PORTB (uint8_t *const)&PORTB
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#define _PORTC (uint8_t *const)&PORTC
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#define _PORTD (uint8_t *const)&PORTD
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#define _PORTE (uint8_t *const)&PORTE
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#define _PORTF (uint8_t *const)&PORTF
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#define _BIT0 0x01
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#define _BIT1 0x02
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#define _BIT2 0x04
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#define _BIT3 0x08
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#define _BIT4 0x10
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#define _BIT5 0x20
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#define _BIT6 0x40
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#define _BIT7 0x80
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/* Specifies the ports and pin numbers for the rows */
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static
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uint8_t *const row_ddr[MATRIX_ROWS] = {_DDRB, _DDRB, _DDRB, _DDRB, _DDRB, _DDRB};
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static
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uint8_t *const row_port[MATRIX_ROWS] = {_PORTB, _PORTB, _PORTB, _PORTB, _PORTB, _PORTB};
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static
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uint8_t *const row_pin[MATRIX_ROWS] = {_PINB, _PINB, _PINB, _PINB, _PINB, _PINB};
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static
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const uint8_t row_bit[MATRIX_ROWS] = { _BIT0, _BIT1, _BIT2, _BIT3, _BIT4, _BIT5};
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/* Specifies the ports and pin numbers for the columns */
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static
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uint8_t *const col_ddr[MATRIX_COLS] = { _DDRD, _DDRC, _DDRC, _DDRD, _DDRD, _DDRE,
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_DDRF, _DDRF, _DDRF, _DDRF, _DDRF, _DDRF,
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_DDRD, _DDRD, _DDRD, _DDRD, _DDRD};
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static
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uint8_t *const col_port[MATRIX_COLS] = {_PORTD, _PORTC, _PORTC, _PORTD, _PORTD, _PORTE,
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_PORTF, _PORTF, _PORTF, _PORTF, _PORTF, _PORTF,
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_PORTD, _PORTD, _PORTD, _PORTD, _PORTD};
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static
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const uint8_t col_bit[MATRIX_COLS] = { _BIT5, _BIT7, _BIT6, _BIT4, _BIT0, _BIT6,
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_BIT0, _BIT1, _BIT4, _BIT5, _BIT6, _BIT7,
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_BIT7, _BIT6, _BIT1, _BIT2, _BIT3};
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static
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inline void pull_column(int col) {
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*col_port[col] &= ~col_bit[col];
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}
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static
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inline void release_column(int col) {
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*col_port[col] |= col_bit[col];
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}
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/* PORTB is set as input with pull-up resistors
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PORTC,D,E,F are set to high output */
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static
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void setup_io_pins(void) {
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uint8_t row, col;
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for(row = 0; row < MATRIX_ROWS; row++) {
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*row_ddr[row] &= ~row_bit[row];
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*row_port[row] |= row_bit[row];
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}
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for(col = 0; col < MATRIX_COLS; col++) {
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*col_ddr[col] |= col_bit[col];
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*col_port[col] |= col_bit[col];
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}
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}
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static uint8_t read_rows(void);
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static void init_rows(void);
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static void unselect_cols(void);
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static void select_col(uint8_t col);
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/* LEDs are on output compare pins OC1B OC1C
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This activates fast PWM mode on them.
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@ -158,7 +77,8 @@ void matrix_init(void)
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MCUCR |= (1<<JTD);
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// initialize row and col
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setup_io_pins();
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unselect_cols();
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init_rows();
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setup_leds();
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// initialize matrix state: all keys off
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@ -171,11 +91,12 @@ void matrix_init(void)
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uint8_t matrix_scan(void)
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{
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for (uint8_t col = 0; col < MATRIX_COLS; col++) { // 0-16
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pull_column(col); // output hi on theline
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select_col(col);
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_delay_us(3); // without this wait it won't read stable value.
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uint8_t rows = read_rows();
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for (uint8_t row = 0; row < MATRIX_ROWS; row++) { // 0-5
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bool prev_bit = matrix_debouncing[row] & ((matrix_row_t)1<<col);
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bool curr_bit = !(*row_pin[row] & row_bit[row]);
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bool curr_bit = rows & (1<<row);
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if (prev_bit != curr_bit) {
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matrix_debouncing[row] ^= ((matrix_row_t)1<<col);
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if (debouncing) {
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@ -184,7 +105,7 @@ uint8_t matrix_scan(void)
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debouncing = DEBOUNCE;
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}
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}
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release_column(col);
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unselect_cols();
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}
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if (debouncing) {
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@ -202,7 +123,7 @@ uint8_t matrix_scan(void)
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bool matrix_is_modified(void)
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{
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// NOTE: no longer used
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if (debouncing) return false;
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return true;
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}
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@ -232,10 +153,120 @@ uint8_t matrix_key_count(void)
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{
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uint8_t count = 0;
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for (uint8_t i = 0; i < MATRIX_ROWS; i++) {
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for (uint8_t j = 0; j < MATRIX_COLS; j++) {
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if (matrix_is_on(i, j))
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count++;
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}
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count += bitpop32(matrix[i]);
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}
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return count;
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}
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/* Row pin configuration
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* row: 0 1 2 3 4 5
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* pin: B0 B1 B2 B3 B4 B5
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*/
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static void init_rows(void)
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{
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// Input with pull-up(DDR:0, PORT:1)
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DDRB &= ~0b00111111;
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PORTB |= 0b00111111;
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}
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static uint8_t read_rows(void)
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{
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return (PINB&(1<<0) ? 0 : (1<<0)) |
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(PINB&(1<<1) ? 0 : (1<<1)) |
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(PINB&(1<<2) ? 0 : (1<<2)) |
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(PINB&(1<<3) ? 0 : (1<<3)) |
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(PINB&(1<<4) ? 0 : (1<<4)) |
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(PINB&(1<<5) ? 0 : (1<<5));
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}
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/* Column pin configuration
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* col: 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
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* pin: D5 C7 C6 D4 D0 E6 F0 F1 F4 F5 F6 F7 D7 D6 D1 D2 D3
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*/
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static void unselect_cols(void)
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{
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// Hi-Z(DDR:0, PORT:0) to unselect
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DDRC |= 0b11000000; // PC: 7 6
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PORTC |= 0b11000000;
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DDRD |= 0b11111111; // PD: 7 6 5 4 3 2 1 0
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PORTD |= 0b11111111;
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DDRE |= 0b01000000; // PE: 6
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PORTE |= 0b01000000;
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DDRF |= 0b11110011; // PF: 7 6 5 4 1 0
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PORTF |= 0b11110011;
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}
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static void select_col(uint8_t col)
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{
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// Output low(DDR:1, PORT:0) to select
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switch (col) {
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case 0:
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DDRD |= (1<<5);
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PORTD &= ~(1<<5);
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break;
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case 1:
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DDRC |= (1<<7);
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PORTC &= ~(1<<7);
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break;
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case 2:
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DDRC |= (1<<6);
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PORTC &= ~(1<<6);
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break;
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case 3:
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DDRD |= (1<<4);
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PORTD &= ~(1<<4);
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break;
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case 4:
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DDRD |= (1<<0);
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PORTD &= ~(1<<0);
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break;
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case 5:
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DDRE |= (1<<6);
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PORTE &= ~(1<<6);
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break;
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case 6:
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DDRF |= (1<<0);
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PORTF &= ~(1<<0);
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break;
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case 7:
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DDRF |= (1<<1);
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PORTF &= ~(1<<1);
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break;
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case 8:
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DDRF |= (1<<4);
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PORTF &= ~(1<<4);
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break;
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case 9:
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DDRF |= (1<<5);
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PORTF &= ~(1<<5);
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break;
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case 10:
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DDRF |= (1<<6);
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PORTF &= ~(1<<6);
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break;
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case 11:
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DDRF |= (1<<7);
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PORTF &= ~(1<<7);
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break;
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case 12:
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DDRD |= (1<<7);
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PORTD &= ~(1<<7);
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break;
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case 13:
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DDRD |= (1<<6);
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PORTD &= ~(1<<6);
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break;
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case 14:
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DDRD |= (1<<1);
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PORTD &= ~(1<<1);
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break;
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case 15:
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DDRD |= (1<<2);
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PORTD &= ~(1<<2);
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break;
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case 16:
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DDRD |= (1<<3);
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PORTD &= ~(1<<3);
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break;
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}
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}
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