Small RAM saving.

Some code ported for the ersky9x board
Mavlink port commited

src/serial.h

@@ -0,0 +1,48 @@
+/*
+ * Authors - Gerard Valade <gerard.valade@gmail.com>
+ *
+ * Adapted from frsky
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published
+ * by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ *
+ */
+
+#ifndef _SERIAL_H_
+#define _SERIAL_H_
+
+typedef enum serial_tx_state_ {
+	TX_STATE_EMPTY = 0, //
+	TX_STATE_READY, //
+	TX_STATE_BUSY
+} serial_tx_state_t;
+extern serial_tx_state_t serialTxState;
+
+
+typedef void (*SerialFuncP)(uint8_t event);
+
+extern SerialFuncP RXHandler;
+
+#define MAX_TX_BUFFER 32
+//#if 0
+extern uint8_t serialTxBuffer[MAX_TX_BUFFER]; // 32 characters
+extern uint8_t serialTxBufferCount;
+extern uint8_t * ptrTxISR;
+//#endif
+
+void SERIAL_Init(void);
+//void SERIAL_transmitBuffer(uint8_t len);
+extern void SERIAL_start_uart_send();
+extern void SERIAL_end_uart_send();
+extern void SERIAL_send_uart_bytes(uint8_t * buf, uint16_t len);
+
+void SERIAL_startTX(void);
+#define IS_TX_BUSY (serialTxState!=TX_STATE_EMPTY)
+
+#endif