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Change Phantom matrix scan to be similar to GH60.

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pull/12/head
Mathias Andersson 12 years ago
parent 71fabf72e0
commit 2d31fcf187
1 changed files with 125 additions and 94 deletions
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219
keyboard/phantom/matrix.c
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@ -27,91 +27,10 @@ static uint8_t debouncing = DEBOUNCE;
static matrix_row_t matrix[MATRIX_ROWS];
static matrix_row_t matrix_debouncing[MATRIX_ROWS];
#define _DDRA (uint8_t *const)&DDRA
#define _DDRB (uint8_t *const)&DDRB
#define _DDRC (uint8_t *const)&DDRC
#define _DDRD (uint8_t *const)&DDRD
#define _DDRE (uint8_t *const)&DDRE
#define _DDRF (uint8_t *const)&DDRF
#define _PINA (uint8_t *const)&PINA
#define _PINB (uint8_t *const)&PINB
#define _PINC (uint8_t *const)&PINC
#define _PIND (uint8_t *const)&PIND
#define _PINE (uint8_t *const)&PINE
#define _PINF (uint8_t *const)&PINF
#define _PORTA (uint8_t *const)&PORTA
#define _PORTB (uint8_t *const)&PORTB
#define _PORTC (uint8_t *const)&PORTC
#define _PORTD (uint8_t *const)&PORTD
#define _PORTE (uint8_t *const)&PORTE
#define _PORTF (uint8_t *const)&PORTF
#define _BIT0 0x01
#define _BIT1 0x02
#define _BIT2 0x04
#define _BIT3 0x08
#define _BIT4 0x10
#define _BIT5 0x20
#define _BIT6 0x40
#define _BIT7 0x80
/* Specifies the ports and pin numbers for the rows */
static
uint8_t *const row_ddr[MATRIX_ROWS] = {_DDRB, _DDRB, _DDRB, _DDRB, _DDRB, _DDRB};
static
uint8_t *const row_port[MATRIX_ROWS] = {_PORTB, _PORTB, _PORTB, _PORTB, _PORTB, _PORTB};
static
uint8_t *const row_pin[MATRIX_ROWS] = {_PINB, _PINB, _PINB, _PINB, _PINB, _PINB};
static
const uint8_t row_bit[MATRIX_ROWS] = { _BIT0, _BIT1, _BIT2, _BIT3, _BIT4, _BIT5};
/* Specifies the ports and pin numbers for the columns */
static
uint8_t *const col_ddr[MATRIX_COLS] = { _DDRD, _DDRC, _DDRC, _DDRD, _DDRD, _DDRE,
_DDRF, _DDRF, _DDRF, _DDRF, _DDRF, _DDRF,
_DDRD, _DDRD, _DDRD, _DDRD, _DDRD};
static
uint8_t *const col_port[MATRIX_COLS] = {_PORTD, _PORTC, _PORTC, _PORTD, _PORTD, _PORTE,
_PORTF, _PORTF, _PORTF, _PORTF, _PORTF, _PORTF,
_PORTD, _PORTD, _PORTD, _PORTD, _PORTD};
static
const uint8_t col_bit[MATRIX_COLS] = { _BIT5, _BIT7, _BIT6, _BIT4, _BIT0, _BIT6,
_BIT0, _BIT1, _BIT4, _BIT5, _BIT6, _BIT7,
_BIT7, _BIT6, _BIT1, _BIT2, _BIT3};
static
inline void pull_column(int col) {
*col_port[col] &= ~col_bit[col];
}
static
inline void release_column(int col) {
*col_port[col] |= col_bit[col];
}
/* PORTB is set as input with pull-up resistors
PORTC,D,E,F are set to high output */
static
void setup_io_pins(void) {
uint8_t row, col;
for(row = 0; row < MATRIX_ROWS; row++) {
*row_ddr[row] &= ~row_bit[row];
*row_port[row] |= row_bit[row];
}
for(col = 0; col < MATRIX_COLS; col++) {
*col_ddr[col] |= col_bit[col];
*col_port[col] |= col_bit[col];
}
}
static uint8_t read_rows(void);
static void init_rows(void);
static void unselect_cols(void);
static void select_col(uint8_t col);
/* LEDs are on output compare pins OC1B OC1C
This activates fast PWM mode on them.
@ -158,7 +77,8 @@ void matrix_init(void)
MCUCR |= (1<<JTD);
// initialize row and col
setup_io_pins();
unselect_cols();
init_rows();
setup_leds();
// initialize matrix state: all keys off
@ -171,11 +91,12 @@ void matrix_init(void)
uint8_t matrix_scan(void)
{
for (uint8_t col = 0; col < MATRIX_COLS; col++) { // 0-16
pull_column(col); // output hi on theline
select_col(col);
_delay_us(3); // without this wait it won't read stable value.
uint8_t rows = read_rows();
for (uint8_t row = 0; row < MATRIX_ROWS; row++) { // 0-5
bool prev_bit = matrix_debouncing[row] & ((matrix_row_t)1<<col);
bool curr_bit = !(*row_pin[row] & row_bit[row]);
bool curr_bit = rows & (1<<row);
if (prev_bit != curr_bit) {
matrix_debouncing[row] ^= ((matrix_row_t)1<<col);
if (debouncing) {
@ -184,7 +105,7 @@ uint8_t matrix_scan(void)
debouncing = DEBOUNCE;
}
}
release_column(col);
unselect_cols();
}
if (debouncing) {
@ -202,7 +123,7 @@ uint8_t matrix_scan(void)
bool matrix_is_modified(void)
{
// NOTE: no longer used
if (debouncing) return false;
return true;
}
@ -232,10 +153,120 @@ uint8_t matrix_key_count(void)
{
uint8_t count = 0;
for (uint8_t i = 0; i < MATRIX_ROWS; i++) {
for (uint8_t j = 0; j < MATRIX_COLS; j++) {
if (matrix_is_on(i, j))
count++;
}
count += bitpop32(matrix[i]);
}
return count;
}
/* Row pin configuration
* row: 0 1 2 3 4 5
* pin: B0 B1 B2 B3 B4 B5
*/
static void init_rows(void)
{
// Input with pull-up(DDR:0, PORT:1)
DDRB &= ~0b00111111;
PORTB |= 0b00111111;
}
static uint8_t read_rows(void)
{
return (PINB&(1<<0) ? 0 : (1<<0)) |
(PINB&(1<<1) ? 0 : (1<<1)) |
(PINB&(1<<2) ? 0 : (1<<2)) |
(PINB&(1<<3) ? 0 : (1<<3)) |
(PINB&(1<<4) ? 0 : (1<<4)) |
(PINB&(1<<5) ? 0 : (1<<5));
}
/* Column pin configuration
* col: 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
* pin: D5 C7 C6 D4 D0 E6 F0 F1 F4 F5 F6 F7 D7 D6 D1 D2 D3
*/
static void unselect_cols(void)
{
// Hi-Z(DDR:0, PORT:0) to unselect
DDRC |= 0b11000000; // PC: 7 6
PORTC |= 0b11000000;
DDRD |= 0b11111111; // PD: 7 6 5 4 3 2 1 0
PORTD |= 0b11111111;
DDRE |= 0b01000000; // PE: 6
PORTE |= 0b01000000;
DDRF |= 0b11110011; // PF: 7 6 5 4 1 0
PORTF |= 0b11110011;
}
static void select_col(uint8_t col)
{
// Output low(DDR:1, PORT:0) to select
switch (col) {
case 0:
DDRD |= (1<<5);
PORTD &= ~(1<<5);
break;
case 1:
DDRC |= (1<<7);
PORTC &= ~(1<<7);
break;
case 2:
DDRC |= (1<<6);
PORTC &= ~(1<<6);
break;
case 3:
DDRD |= (1<<4);
PORTD &= ~(1<<4);
break;
case 4:
DDRD |= (1<<0);
PORTD &= ~(1<<0);
break;
case 5:
DDRE |= (1<<6);
PORTE &= ~(1<<6);
break;
case 6:
DDRF |= (1<<0);
PORTF &= ~(1<<0);
break;
case 7:
DDRF |= (1<<1);
PORTF &= ~(1<<1);
break;
case 8:
DDRF |= (1<<4);
PORTF &= ~(1<<4);
break;
case 9:
DDRF |= (1<<5);
PORTF &= ~(1<<5);
break;
case 10:
DDRF |= (1<<6);
PORTF &= ~(1<<6);
break;
case 11:
DDRF |= (1<<7);
PORTF &= ~(1<<7);
break;
case 12:
DDRD |= (1<<7);
PORTD &= ~(1<<7);
break;
case 13:
DDRD |= (1<<6);
PORTD &= ~(1<<6);
break;
case 14:
DDRD |= (1<<1);
PORTD &= ~(1<<1);
break;
case 15:
DDRD |= (1<<2);
PORTD &= ~(1<<2);
break;
case 16:
DDRD |= (1<<3);
PORTD &= ~(1<<3);
break;
}
}

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