uart: fix return value of send functions

the return value is 0 on success

diff --git a/modules/comm/uart/uart_send.c b/modules/comm/uart/uart_send.c
index 26bb2a3..e2faed1 100644 (file)
--- a/modules/comm/uart/uart_send.c
+++ b/modules/comm/uart/uart_send.c
@@ -44,5 +44,5 @@ int uart_send(uint8_t num, char c)
                        while(uart_send_nowait(num, c) == -1);
                }
        }
                        while(uart_send_nowait(num, c) == -1);
                }
        }

-       return c;
+       return 0;

 }
 }

diff --git a/modules/comm/uart/uart_send9.c b/modules/comm/uart/uart_send9.c
index ba5b898..7967b12 100644 (file)
--- a/modules/comm/uart/uart_send9.c
+++ b/modules/comm/uart/uart_send9.c
@@ -44,5 +44,5 @@ int uart_send_9bits(uint8_t num, int c)
                        while(uart_send_9bits_nowait(num, c) == -1);
                }
        }
                        while(uart_send_9bits_nowait(num, c) == -1);
                }
        }

-       return c;
+       return 0;

 }
 }

diff --git a/modules/comm/uart/uart_send9_nowait.c b/modules/comm/uart/uart_send9_nowait.c
index d22ef7b..86bed9c 100644 (file)
--- a/modules/comm/uart/uart_send9_nowait.c
+++ b/modules/comm/uart/uart_send9_nowait.c
@@ -25,7 +25,7 @@
 #include <uart_defs.h>
 #include <uart_private.h>
 
 #include <uart_defs.h>
 #include <uart_private.h>
 

-int uart_send_9bits_nowait(int c)
+int uart_send_9bits_nowait(uint8_t num, int c)

 {
        uint8_t flags;
        IRQ_LOCK(flags);
 {
        uint8_t flags;
        IRQ_LOCK(flags);


@@ -36,7 +36,7 @@ int uart_send_9bits_nowait(int c)
                if (*uart_regs[num].ucsra & (1<<UDRE)) {
                        uart_set_udr_9bits(c);
                        IRQ_UNLOCK(flags);
                if (*uart_regs[num].ucsra & (1<<UDRE)) {
                        uart_set_udr_9bits(c);
                        IRQ_UNLOCK(flags);

-                       return c;
+                       return 0;

                }
                else {
                        IRQ_UNLOCK(flags);
                }
                else {
                        IRQ_UNLOCK(flags);


@@ -61,5 +61,5 @@ int uart_send_9bits_nowait(int c)
        }
 
        IRQ_UNLOCK(flags);
        }
 
        IRQ_UNLOCK(flags);

-       return (int)c;
+       return 0;

 }
 }

diff --git a/modules/comm/uart/uart_send_nowait.c b/modules/comm/uart/uart_send_nowait.c
index 6a0a008..0aad843 100644 (file)
--- a/modules/comm/uart/uart_send_nowait.c
+++ b/modules/comm/uart/uart_send_nowait.c
@@ -41,7 +41,7 @@ int uart_send_nowait(uint8_t num, char c)
                if (*uart_regs[num].ucsra & (1<<UDRE)) {
                        uart_set_udr(num, c);
                        IRQ_UNLOCK(flags);
                if (*uart_regs[num].ucsra & (1<<UDRE)) {
                        uart_set_udr(num, c);
                        IRQ_UNLOCK(flags);

-                       return (int)c;
+                       return 0;

                }
                else {
                        IRQ_UNLOCK(flags);
                }
                else {
                        IRQ_UNLOCK(flags);


@@ -65,5 +65,5 @@ int uart_send_nowait(uint8_t num, char c)
        }
 
        IRQ_UNLOCK(flags);
        }
 
        IRQ_UNLOCK(flags);

-       return (int)c;
+       return 0;

 }
 }