working CHIP sender

1 files changed, 0 insertions, 146 deletions

diff --git a/trasmitter/clock.c b/trasmitter/clock.c
deleted file mode 100644
index 7ada0cf..0000000
--- a/trasmitter/clock.c
+++ /dev/null
@@ -1,146 +0,0 @@
-#include <stdio.h>
-#include <unistd.h>
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <fcntl.h>
-#include <time.h>
-#include <sched.h>
-#include <inttypes.h>
-
-#define PIN "132"
-
-void init_pin() {
-  int fd = open("/sys/class/gpio/export",O_WRONLY);
-  char buf[16];
-  int len = sprintf(buf,"%s\n",PIN);
-  write(fd,buf,len);
-  close(fd);
-  fd = open("/sys/class/gpio/gpio" PIN "/direction",O_WRONLY);
-  write(fd,"out\n",4);
-  close(fd);
-}
-
-void deinit_pin() {
-  int fd = open("/sys/class/gpio/unexport",O_WRONLY);
-  char buf[16];
-  int len = sprintf(buf,"%s\n",PIN);
-  write(fd,buf,len);
-  close(fd);
-}
-
-int pin_fd;
-void write_pin(uint8_t value) {
-  if (!pin_fd) {
-    pin_fd = open("/sys/class/gpio/gpio" PIN "/value",O_WRONLY);
-  }
-  char buf[16];
-  int len = sprintf(buf,"%d\n",value);
-  write(pin_fd,buf,len);
-}
-
-void init_sched() {
-  struct sched_param sp;
-  sp.sched_priority=99;
-
-  // to make this work, sudo setcap CAP_SYS_NICE=eip clock
-  sched_setscheduler(0,SCHED_RR,&sp);
-}
-
-const int width=520000;
-struct timespec next_step;
-void send_array(const uint8_t values[],size_t len) {
-  if (next_step.tv_sec == 0) {
-    clock_gettime(CLOCK_REALTIME,&next_step);
-  }
-  uint8_t pin_value = 1;
-  for (int i=0; i<len; ++i) {
-    write_pin(pin_value);
-    pin_value = 1 - pin_value;
-
-    next_step.tv_nsec += width * values[i];
-
-    if (next_step.tv_nsec > 1000000000UL) {
-      next_step.tv_nsec -= 1000000000UL;
-      ++next_step.tv_sec;
-    }
-
-    int rc = clock_nanosleep(CLOCK_REALTIME,
-                             TIMER_ABSTIME,
-                             &next_step,
-                             NULL);
-    if (rc) {
-      printf("problems: %d\n",rc);
-    }
-  }
-}
-void my_sleep(uint8_t seconds) {
-  next_step.tv_sec += seconds;
-
-  int rc = clock_nanosleep(CLOCK_REALTIME,
-                           TIMER_ABSTIME,
-                           &next_step,
-                           NULL);
-  if (rc) {
-    printf("problems: %d\n",rc);
-  }
-}
-
-// alternate HIGH and LOW, first one of each array is HIGH
-const uint8_t prologue[] = {
-  1,1, 1,1, 1,1, 1,1, 1,1, 1,1,
-  2,3, 1,1, 2,2, 1,1, 1,1, 2,1,
-  1,1, 1,1, 1,2, 1,1, 1,1, 1,1,
-  1,1, 1,1,
-};
-const size_t prologueSize = sizeof(prologue) / sizeof(uint8_t);
-
-const uint8_t epilogue[] = {
-  1,2, 2,2, 1,3, // the last value doesn't much matter
-};
-const size_t epilogueSize = sizeof(epilogue) / sizeof(uint8_t);
-
-const uint8_t onSignal[] = {
-  2,2, 1,1, 1,1, 1,1, 1,1, 2,1, 1,1,
-};
-const size_t onSize = sizeof(onSignal) / sizeof(uint8_t);
-
-const uint8_t offSignal[] = {
-  1,1, 1,1, 1,1, 1,1, 1,1, 2,2, 2,1,
-};
-const size_t offSize = sizeof(offSignal) / sizeof(uint8_t);
-
-void transmitSignal(const uint8_t signal[], size_t signalSize) {
-  send_array(prologue,prologueSize);
-  send_array(signal,signalSize);
-  send_array(epilogue,epilogueSize);
-}
-
-void sendTrain(const uint8_t signal[], size_t signalSize) {
-  transmitSignal(offSignal,offSize);
-  my_sleep(1);
-  transmitSignal(signal,signalSize);
-  my_sleep(2);
-  transmitSignal(offSignal,offSize);
-}
-
-int main(int argc,char **argv) {
-  if (argc != 2) {
-    fprintf(stderr,"thing 0/1\n");
-    return 1;
-  }
-
-  init_sched();
-  init_pin();
-  write_pin(0);
-
-  if (argv[1][0] == '1') {
-    sendTrain(onSignal,onSize);
-  }
-  else {
-    sendTrain(offSignal,offSize);
-  }
-
-  deinit_pin();
-
-  return 0;
-}