1 files changed, 98 insertions, 0 deletions
diff --git a/src/venus_api.h b/src/venus_api.h
new file mode 100644
index 0000000..75f189f
--- /dev/null
+++ b/src/venus_api.h
@@ -0,0 +1,98 @@
+
+#include <termios.h>
+
+#ifndef __VENUS_API_H
+#define __VENUS_API_H
+
+#define NMEA_SENTENCE_MAX 82
+
+enum venus_message_id {
+	ID_NONE                = 0x00,
+	ID_SYSTEM_RESTART      = 0x01,
+	ID_QUERY_SW_VERSION    = 0x02,
+	ID_QUERY_SW_CRC        = 0x03,
+	ID_FACTORY_DEFAULTS    = 0x04,
+	ID_CONF_SERIAL         = 0x05,
+	ID_CONF_NMEA           = 0x08,
+	ID_CONF_FORMAT         = 0x09,
+	ID_GET_EPHEMERIS       = 0x30,
+	ID_SET_EPHEMERIS       = 0x31,
+	ID_SW_VERSION          = 0x80,
+	ID_SW_CRC              = 0x81,
+	ID_ACK                 = 0x83,
+	ID_NACK                = 0x84,
+	ID_EPHEMERIS_DATA      = 0xB1,
+};
+
+enum venus_message_type {
+	MSG_TYPE_NONE    = 0,
+	MSG_TYPE_NMEA    = 1,
+	MSG_TYPE_BINARY  = 2,
+};
+
+enum venus_sw_type {
+	SW_TYPE_RESERVED    = 0,
+	SW_TYPE_SYSTEM      = 1,
+};
+
+enum venus_update_attr {
+	UPDATE_ATTR_SRAM          = 0,
+	UPDATE_ATTR_SRAM_FLASH    = 1,
+};
+
+enum venus_start_mode {
+	SYSTEM_RESET_NO_CHANGE    = 0,
+	SYSTEM_RESET_HOT          = 1,
+	SYSTEM_RESET_WARM         = 2,
+	SYSTEM_RESET_COLD         = 3,
+	SYSTEM_RESET_TEST_MODE    = 4,
+};
+
+enum venus_com_port {
+	VENUS_COM1 = 0,
+};
+
+enum venus_baud_rate {
+	VENUS_4800    = 0,
+	VENUS_9600    = 1,
+	VENUS_19200   = 2,
+	VENUS_38400   = 3,
+	VENUS_57600   = 4,
+	VENUS_115200  = 5,
+};
+
+enum venus_factory_defaults_type {
+	FACTORY_DEFAULTS_RESERVED   = 0,
+	FACTORY_DEFAULTS_REBOOT     = 1,
+};
+
+struct baud_map {
+	speed_t baud;
+	speed_t value;
+};
+
+struct venus_msg {
+	uint8_t *data;
+	uint16_t len;
+};
+
+speed_t value_to_baud(speed_t value);
+speed_t baud_to_venus(speed_t baud);
+void free_venus_msg_data(struct venus_msg *msg);
+uint8_t checksum(void *data, uint16_t len);
+int venus_write_msg(int fd, struct venus_msg *msg);
+int venus_read_msg(int fd, struct venus_msg *msg);
+ssize_t read_nmea_sentence(int fd, void *buf, size_t count);
+int venus_system_restart(int fd, uint8_t mode, time_t utc, int16_t latitude,
+			int16_t longitude, int16_t altitude);
+int venus_factory_defaults(int fd, uint8_t type);
+int venus_conf_serial(int fd, uint8_t com, uint8_t baud, uint8_t attr);
+int venus_conf_format(int fd, uint8_t type, uint8_t attr);
+int venus_query_sw_version(int fd, uint8_t type);
+int venus_conf_nmea(int fd, uint8_t gga, uint8_t gsa, uint8_t gsv, uint8_t gll,
+			uint8_t rmc, uint8_t vtg, uint8_t zda, uint8_t attr);
+int venus_tty_configure(int fd, speed_t baud_rate);
+int venus_open(const char *dev, speed_t baud_rate);
+
+#endif /* ~__VENUS_API_H */
+