X-Git-Url: http://git.mutantstargoat.com/user/nuclear/?p=rpikern;a=blobdiff_plain;f=src%2Fmain.c;fp=src%2Fmain.c;h=8f85b1fc7944f1ee5b7f5724106e2fe35a5a8c7a;hp=97fcda79efe429e79b40482fde592f3080f2d4a1;hb=36f1048dfeec94c6f305b76082fecec93347b2ec;hpb=993155fee2327f1f3cda285c9548bbb09688a3f3

diff --git a/src/main.c b/src/main.c
index 97fcda7..8f85b1f 100644
--- a/src/main.c
+++ b/src/main.c
@@ -2,30 +2,52 @@
 
 #include <string.h>
 #include <stdint.h>
+#include <ctype.h>
 #include "asm.h"
 #include "serial.h"
 
 void dbgled(int x);
 void exit(int x);
 
+static void cmdrun(char *cmd);
+
 int main(void)
 {
-	disable_intr();
+	int lastnl = 0;
+	static char cmdbuf[256];
+	static int cmdend;
 
 	dbgled(2);
 
 	init_serial(115200);
-	ser_printstr("starting rpkern\n");
+	ser_printstr("starting rpikern\n");
 
 	for(;;) {
 		int c = ser_getchar();
-		if(c == -1) {
+
+		switch(c) {
+		case '\r':
+		case '\n':
+			if(!lastnl) {
+				ser_printstr("\r\n");
+				cmdbuf[cmdend] = 0;
+				cmdend = 0;
+				cmdrun(cmdbuf);
+			}
+			lastnl = 1;
+			break;
+
+		case -1:
+			lastnl = 0;
 			ser_printstr("error!\n");
-		} else {
-			ser_printstr("got: ");
+			break;
+
+		default:
+			lastnl = 0;
 			ser_putchar(c);
-			ser_putchar('\r');
-			ser_putchar('\n');
+			if(cmdend < sizeof cmdbuf) {
+				cmdbuf[cmdend++] = c;
+			}
 		}
 	}
 
@@ -37,3 +59,24 @@ void panic(void)
 	dbgled(1);
 	exit(0);
 }
+
+static void cmdrun(char *cmd)
+{
+	char *ptr, *args;
+
+	while(*cmd && isspace(*cmd)) cmd++;
+	ptr = cmd;
+	while(*ptr && !isspace(*ptr)) ptr++;
+	*ptr = 0;
+	args = ptr + 1;
+
+	if(strcmp(cmd, "help") == 0) {
+		ser_printstr("help not implemented yet\n");
+	} else if(strcmp(cmd, "ver") == 0) {
+		ser_printstr("rpikern version 0.0\n");
+	} else {
+		ser_printstr("Unknown command: ");
+		ser_printstr(cmd);
+		ser_printstr("\n");
+	}
+}