From 861ed124caf5a403748c948b88afa4ef89cc1787 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Karel=20Ko=C4=8D=C3=AD?= <cynerd@email.cz>
Date: Sun, 11 Oct 2015 13:33:40 +0200
Subject: Add USART FILE interface

! NOT TESTED !
---
 src/usart.c | 32 +++++++++++++++++++++++++++++++-
 1 file changed, 31 insertions(+), 1 deletion(-)

(limited to 'src')

diff --git a/src/usart.c b/src/usart.c
index 0e17aff..745d75c 100644
--- a/src/usart.c
+++ b/src/usart.c
@@ -117,7 +117,7 @@ void usart_send_str(char *str) {
 
 #ifdef _IOE_USART_INBUFFER
 uint8_t usart_get(void) {
-    uint8_t rtn = 0;
+    uint8_t rtn;
     IOEBUFFER_GET(_ioe_usart_inbuffer, CONFIG_IOE_USART_INBUFFER_SIZE,
                   rtn);
     return rtn;
@@ -150,6 +150,36 @@ uint8_t usart_outbuffered(void) {
 }
 #endif
 
+#ifdef CONFIG_IOE_USART_OUTFILE
+static int usartput(char c, FILE * f) {
+    usart_send((uint8_t) c);
+    return 0;
+}
+#endif
+
+#ifdef CONFIG_IOE_USART_INBUFFER
+static int usartget(FILE * f) {
+    uint8_t v;
+    while (!(v = usart_get()));
+    return v;
+}
+#endif
+
+#if (defined CONFIG_IOE_USART_INFILE) || (defined CONFIG_IOE_USART_OUTFILE)
+FILE *usart_async_open(void) {
+    usart_init_async();
+#ifdef CONFIG_IOE_USART_OUTFILE
+#ifdef CONFIG_IOE_USART_INFILE
+    return fdevopen(spiput, spiget);
+#else
+    return fdevopen(spiput, 0);
+#endif
+#else
+    return fdevopen(0, spiget);
+#endif
+}
+#endif
+
 ////// Interrupts ////////////////////////////////
 void (*usart_receive) (uint8_t data) = 0;
 void (*usart_sent) (void) = 0;
-- 
cgit v1.2.3