native board uart0 import

native/board_init.c

@@ -21,6 +21,9 @@
  */
 void board_init()
 {
+#ifdef MODULE_UART0
+    _native_init_uart0();
+#endif
     LED_GREEN_OFF();
     LED_RED_ON();
     puts("RIOT native board initialized.");

native/include/board.h

@@ -22,3 +22,8 @@ void LED_RED_OFF(void);
 void LED_RED_ON(void);
 void LED_RED_TOGGLE(void);
 
+#ifdef MODULE_UART0
+#include <sys/select.h>
+extern fd_set _native_uart_rfds;
+extern void _native_handle_uart0_input(void);
+#endif

native/native-uart0.c

+#include <err.h>
+#include <stdio.h>
+#include <unistd.h>
+#include <sys/select.h>
+
+#include "cpu.h"
+#include "debug.h"
+#include "board_uart0.h"
+
+fd_set _native_uart_rfds;
+
+static inline int uart0_puts(char *astring, int length)
+{
+    return puts(astring);
+}
+
+void _native_handle_uart0_input()
+{
+    char buf[42];
+    int nread;
+
+    _native_in_syscall = 0;
+    _native_in_isr = 1;
+
+    nread = read(0, buf, sizeof(buf));
+    if (nread == -1) {
+        err(1, "_native_handle_uart0_input(): read()");
+    }
+    for(int pos = 0; pos < nread; pos++) {
+        uart0_handle_incoming(buf[pos]);
+    }
+    uart0_notify_thread();
+
+    _native_in_isr = 0;
+    cpu_switch_context_exit();
+}
+
+void _native_init_uart0()
+{
+    /* Watch stdin (fd 0) to see when it has input. */
+    FD_ZERO(&_native_uart_rfds);
+    FD_SET(0, &_native_uart_rfds);
+    puts("RIOT native uart0 initialized.");
+}