| 1 | #include <stdlib.h> |
| 2 | #include <fcntl.h> |
| 3 | #include <signal.h> |
| 4 | #include <unistd.h> |
| 5 | #include <string.h> |
| 6 | #include <stdio.h> |
| 7 | #include <stdlib.h> |
| 8 | #include <time.h> |
| 9 | |
| 10 | #include <sys/types.h> |
| 11 | #include <sys/gpio.h> |
| 12 | #include <sys/ioctl.h> |
| 13 | |
| 14 | #include "pins.h" |
| 15 | |
| 16 | #define UP(N) set_pin(N, 1) |
| 17 | #define DOWN(N) set_pin(N, 0) |
| 18 | |
| 19 | #define HI(N) set(N, 1) |
| 20 | #define LO(N) set(N, 0) |
| 21 | |
| 22 | void kd2() { |
| 23 | usleep(10000); |
| 24 | } |
| 25 | |
| 26 | void kdh() { |
| 27 | usleep(5000); |
| 28 | } |
| 29 | |
| 30 | void kd1() { |
| 31 | usleep(1); |
| 32 | } |
| 33 | |
| 34 | void test_pins() { |
| 35 | for(;;) { |
| 36 | HI("clk"); |
| 37 | HI("clkinh"); |
| 38 | LO("shld"); |
| 39 | HI("clr"); |
| 40 | kd1(); |
| 41 | LO("clk"); |
| 42 | LO("clkinh"); |
| 43 | LO("shld"); |
| 44 | LO("clr"); |
| 45 | kd1(); |
| 46 | } |
| 47 | } |
| 48 | |
| 49 | /* call when clk is hi */ |
| 50 | void tick(int n) { |
| 51 | int i = 0; |
| 52 | |
| 53 | for(; i < n; i++) { |
| 54 | LO("clk"); |
| 55 | kd2(); |
| 56 | HI("clk"); |
| 57 | kd2(); |
| 58 | } |
| 59 | } |
| 60 | |
| 61 | void clear() { |
| 62 | HI("clk"); |
| 63 | LO("clkinh"); |
| 64 | kdh(); |
| 65 | LO("clr"); |
| 66 | kdh(); |
| 67 | LO("clk"); |
| 68 | kdh(); |
| 69 | HI("clr"); |
| 70 | kdh(); |
| 71 | HI("clk"); |
| 72 | kd2(); |
| 73 | } |
| 74 | |
| 75 | int main(int argc, char *argv[]) { |
| 76 | |
| 77 | signal(SIGINT, inth); |
| 78 | |
| 79 | pins_init(); |
| 80 | // config_pins(); |
| 81 | pincnt(); |
| 82 | |
| 83 | pcfg(1, 6, -1, INPUT | PULLDOWN, "ser"); |
| 84 | pcfg(1, 13, 0, OUTPUT, "clk"); |
| 85 | pcfg(1, 15, 0, OUTPUT, "shld"); |
| 86 | pcfg(0, 27, 0, OUTPUT, "clr"); |
| 87 | pcfg(1, 2, 0, OUTPUT, "clkinh"); |
| 88 | |
| 89 | LO("clk"); |
| 90 | HI("clkinh"); |
| 91 | HI("clr"); |
| 92 | LO("shld"); |
| 93 | |
| 94 | sleep(1); |
| 95 | for(;;){ |
| 96 | LO("clk"); |
| 97 | HI("clkinh"); |
| 98 | HI("clr"); |
| 99 | LO("shld"); |
| 100 | kd2(); |
| 101 | kd2(); |
| 102 | clear(); |
| 103 | |
| 104 | tick(4); |
| 105 | LO("clk"); |
| 106 | LO("shld"); |
| 107 | kd2(); |
| 108 | HI("clk"); |
| 109 | kdh(); |
| 110 | HI("clkinh"); |
| 111 | kdh(); |
| 112 | LO("clk"); |
| 113 | |
| 114 | LO("shld"); |
| 115 | kdh(); |
| 116 | kdh(); |
| 117 | HI("clk"); |
| 118 | kd2(); |
| 119 | tick(2); |
| 120 | LO("clk"); |
| 121 | LO("clkinh"); |
| 122 | kd2(); |
| 123 | HI("clk"); |
| 124 | kd2(); |
| 125 | tick(10); |
| 126 | } |
| 127 | } |