1 files changed, 92 insertions, 0 deletions
diff --git a/firmware/zpu/lib/hal_uart.h b/firmware/zpu/lib/hal_uart.h
new file mode 100644
index 000000000..793aface0
--- /dev/null
+++ b/firmware/zpu/lib/hal_uart.h
@@ -0,0 +1,92 @@
+/* -*- c -*- */
+/*
+ * Copyright 2007,2008 Free Software Foundation, Inc.
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * 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.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef INCLUDED_HAL_UART_H
+#define INCLUDED_HAL_UART_H
+
+/*!
+ * \brief uart mode flags
+ */
+#define	UART_MODE_RAW		0x0000	// no mapping on input or output
+#define	UART_MODE_ONLCR	0x0001	// map \n to \r\n on output (default)
+
+#define DEFAULT_UART UART_DEBUG //which UART printf, gets, etc. use
+
+typedef enum {
+  US_9600   = 0,
+  US_19200  = 1,
+  US_38400  = 2,
+  US_57600  = 3,
+  US_115200 = 4,
+  US_230400 = 5
+} hal_uart_speed_t;
+
+typedef struct {
+  hal_uart_speed_t	speed;
+} hal_uart_config_t;
+
+typedef enum {
+  UART_DEBUG = 0,
+  UART_EXP   = 1,
+  UART_GPS   = 2
+} hal_uart_name_t;
+
+/*
+ * \brief Set uart mode
+ */
+void hal_uart_set_mode(hal_uart_name_t uart, int flags);
+
+/*!
+ * \brief one-time call to init
+ */
+void hal_uart_init(void);
+
+/*!
+ * \brief Set uart parameters
+ *  Default is 115,200 bps, 8N1.
+ */
+void hal_uart_set_config(const hal_uart_config_t *c);
+
+/*!
+ * \brief Get uart configuation.
+ */
+void hal_uart_get_config(hal_uart_config_t *c);
+
+/*!
+ * \brief Enqueue \p ch for output over serial port
+ */
+void hal_uart_putc(hal_uart_name_t u, int ch);
+
+/*!
+ * \brief Enqueue \p ch for output over serial port, silent fail if queue is full
+ */
+void hal_uart_putc_nowait(hal_uart_name_t u, int ch);
+
+/*
+ * \brief Blocking read of next char from serial port
+ */
+int hal_uart_getc(hal_uart_name_t u);
+
+/*
+ * \brief Non-blocking read of next char from serial port, return -1 if nothing available
+ */
+int hal_uart_getc_noblock(hal_uart_name_t u);
+
+int hal_uart_rx_flush(hal_uart_name_t u);
+
+#endif /* INCLUDED_HAL_UART_H */