implemented stdin for TelosB

telosb/Makefile

@@ -5,6 +5,7 @@ export ARCH = telosb_base.a
 
 DEP = $(SRC:%.c=$(BINDIR)%.d)
 
+INCLUDES += -I${RIOTBOARD}/${BOARD}/include/
 INCLUDES += -I${RIOTBASE}/core/include/
 INCLUDES += -I$(RIOTBASE)/cpu/msp430-common/include/ -I$(RIOTBASE)/cpu/msp430x16x/include/
 INCLUDES += -I$(RIOTBASE)/drivers/cc2420/include/ -I$(RIOTBASE)/sys/include

telosb/board.c

@@ -2,8 +2,8 @@
    * board.c - Board initiazilation for the TelosB
    * Copyright (C) 2013 Oliver Hahm <oliver.hahm@inria.fr>
    *
-   * This file subject to the terms and conditions of the GLGPLv2 License. See the file LICENSE in the  
-   * top level directory for more details.
+   * This file subject to the terms and conditions of the LGPLv2. See the file
+   * LICENSE in the  top level directory for more details.
    */
 
 #include "cpu.h"

telosb/uart.c

-  /*
-   * uart.c - Implementation for the TelosB UART
-   * Copyright (C) 2013 Oliver Hahm <oliver.hahm@inria.fr>
-   *
-   * This file subject to the terms and conditions of the GLGPLv2 License. See the file LICENSE in the  
-   * top level directory for more details.
-   */
+/*
+ * uart.c - Implementation for the TelosB UART
+ * Copyright (C) 2013 Oliver Hahm <oliver.hahm@inria.fr>
+ *
+ * This file subject to the terms and conditions of the LGPLv2. See the file
+ * LICENSE in the top level directory for more details.
+ */
 
 #include <stdio.h>
 #include <stdint.h>
 #include "cpu.h"
 #include "board.h"
 #include "kernel.h"
+#include "board_uart0.h"
 
 #define   UART1_TX                  U1TXBUF
 #define   UART1_WAIT_TXDONE()       while ( (U1TCTL & TXEPT) == 0 ) { _NOP(); }
 
 #define BAUDRATE    (115200ul)
 
+static uint8_t calc_umctl(uint16_t br)
+{
+    /* from TI slaa049 */
+    register uint8_t CMOD = 256 * br - 256 * (br + 1) / 2;
+    register uint8_t c = 0;
+    register int i = 0;
+    register uint8_t a = CMOD;
+    a <<= 1;
+
+    do {
+        if (a & 0x80) {            /* Overflow to integer? */
+            a = a - 128 + CMOD;    /* Yes, subtract 1.000000 */
+            c |= 0x80;
+        }
+        else {
+            a += CMOD;              /* No, add fraction */
+        }
+
+        if (i == 7) {
+            return c;
+        }
+
+        i++;
+        c >>= 1;
+    }
+    while (1);
+}
+
 void uart_init(void)
 {
     UCTL1     =  SWRST;           /* hold UART1 module in reset */
@@ -26,10 +55,13 @@ void uart_init(void)
     UTCTL1   |= SSEL1;        /* UCLK = SCLK */
     UBR01     = F_CPU / BAUDRATE;
     UBR11     = (F_CPU / BAUDRATE) >> 8;
-    UMCTL1    =  0x4A;            /* modulation */
+    UMCTL1    = calc_umctl(F_CPU / BAUDRATE);       /* set modulation */
 
     ME2      |=  UTXE1 + URXE1;   /* enable UART1 TX/RX */
     UCTL1    &= ~SWRST;           /* clear UART1 reset bit */
+
+    IE2  |= URXIE1;               /* enable rx interrupt */
+    IFG1 &= ~UTXIFG1;
 }
 
 int putchar(int c)
@@ -43,3 +75,44 @@ uint8_t uart_readByte(void)
 {
     return U1RXBUF;
 }
+
+void usart1irq(void);
+/**
+ * \brief the interrupt function
+ */
+interrupt(USART1RX_VECTOR) usart1irq(void)
+{
+    int c = 0;
+
+    /* Check status register for receive errors. */
+    if (U1RCTL & RXERR) {
+        if (U1RCTL & FE) {
+            puts("rx framing error");
+        }
+
+        if (U1RCTL & OE) {
+            puts("rx overrun error");
+        }
+
+        if (U1RCTL & PE) {
+            puts("rx parity error");
+        }
+
+        if (U1RCTL & BRK) {
+            puts("rx break error");
+        }
+
+        /* Clear error flags by forcing a dummy read. */
+        c = U1RXBUF;
+    }
+
+#ifdef MODULE_UART0
+    else if (uart0_handler_pid) {
+        c = U1RXBUF;
+        uart0_handle_incoming(c);
+        uart0_notify_thread();
+    }
+
+#endif
+}
+