pana_m8: Add initial files
[tmk_keyboard.git] / keyboard / pana_m8 / pana_m8.c
1 #include <avr/io.h>
2 #include <avr/pgmspace.h>
3 #include "matrix.h"
4 #include "led.h"
5 #include "wait.h"
6 #include "debug.h"
7
8 #define CLK_HI() (PORTD |= (1<<0))
9 #define CLK_LO() (PORTD &= ~(1<<0))
10 #define STATE() (PIND & (1<<1))
11 #define RST_HI() (PORTD |= (1<<3))
12 #define RST_LO() (PORTD &= ~(1<<3))
13 #define SENSE() (PIND & (1<<2))
14
15 static matrix_row_t matrix[8] = {};
16
17
18 void matrix_init(void)
19 {
20 debug_enable = true;
21 debug_keyboard = true;
22 debug_matrix = true;
23
24 // PD0:Clock PD1:State PD2:Sense_All PD3:Reset(Scan_All)
25 DDRD = (1<<3) | (1<<0);
26 PORTD = (1<<2) | (1<<1);
27
28 dprintf("init\n");
29 }
30
31 uint8_t matrix_scan(void)
32 {
33
34 // Scan_all resets counter
35 RST_HI();
36 wait_us(10);
37 // TODO: cannot get reliable value from SENSE()
38 //uint8_t s = SENSE() | STATE();
39 //if (!SENSE()) return 0; // no activated key
40 RST_LO();
41 wait_us(10);
42 //if (!s) return 0;
43
44 // 8x8 matrix: row:sense, col:drive, key_on:hi
45 for (uint8_t col = 0; col < 8; col++) {
46 for (uint8_t row = 0; row < 8; row++) {
47 CLK_HI();
48 wait_us(10);
49
50 if (STATE()) {
51 matrix[row] |= (1<<col);
52 } else {
53 matrix[row] &= ~(1<<col);
54 }
55
56 // clock lo - next row
57 CLK_LO();
58 wait_us(10);
59 }
60 }
61 return 1;
62 }
63
64 matrix_row_t matrix_get_row(uint8_t row)
65 {
66 return matrix[row];
67 }
68
69 void led_set(uint8_t usb_led)
70 {
71 }
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