Init repository

1 files changed, 60 insertions, 0 deletions

diff --git a/src/main.c b/src/main.c
new file mode 100644
index 0000000..b26543d
--- /dev/null
+++ b/src/main.c
@@ -0,0 +1,60 @@
+#include "libs/tty.h"
+#include "libs/utils.h"
+#include "libs/gpio.h"
+#include "libs/interrupts.h"
+#include "libs/clock.h"
+
+#define MOTD "WELCOME TO RP2040 TTY\n\n\r"
+#define PROMPT "rp2040> "
+#define HELP "\tblink\t\tmake led blink for almost 1s\n\r"
+
+char cmd[64];
+char *cmdptr=cmd;
+
+// Execute command from cmd buffer
+void exec(){
+  if(!strncmp(cmd, "blink", strlen("exit")))
+	gpio_blink_led(1);
+  else if(!strncmp(cmd, "help", strlen("help")))
+	tty_putstr(HELP);
+  else if(cmdptr != cmd)
+	tty_putstr("Unknown command (see help)\n\r");
+}
+
+void main(){
+  // Finishing boot
+  interrupts_init();
+  xosc_init();
+  gpio_init();
+  tty_init();
+
+
+  // REPL
+  char c=tty_getchar();
+  tty_putstr(MOTD);
+  tty_putstr(PROMPT);
+  while(1){
+	c=tty_getchar();
+	if(c=='\r'){
+	  tty_putstr("\n\r");
+	  exec();
+	  tty_putstr(PROMPT);
+	  cmdptr=cmd;
+	}
+	else if (c ==0x8){
+	  if(cmdptr-cmd){
+		tty_putstr("\b \b"); // Erase last character
+		cmdptr--;
+	  }
+	}
+	else{
+	  *cmdptr=c;
+	  cmdptr++;
+	  tty_putchar(c);
+	}
+  }
+
+
+
+  return;
+}