+++ /dev/null
-/*
- * Copyright © 2009 Keith Packard <keithp@keithp.com>
- *
- * 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; version 2 of the License
- *
- * 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, write to the Free Software Foundation, Inc.,
- * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
- */
-
-#ifndef _AO_H_
-#define _AO_H_
-
-#include <stdint.h>
-#include <stdio.h>
-#include <string.h>
-#include "cc1111.h"
-
-#define TRUE 1
-#define FALSE 0
-
-/* Convert a __data pointer into an __xdata pointer */
-#define DATA_TO_XDATA(a) ((void __xdata *) ((uint8_t) (a) | 0xff00))
-
-/* Stack runs from above the allocated __data space to 0xfe, which avoids
- * writing to 0xff as that triggers the stack overflow indicator
- */
-#define AO_STACK_START 0x80
-#define AO_STACK_END 0xfe
-#define AO_STACK_SIZE (AO_STACK_END - AO_STACK_START + 1)
-
-/* An AltOS task */
-struct ao_task {
- __xdata void *wchan; /* current wait channel (NULL if running) */
- uint8_t stack_count; /* amount of saved stack */
- uint8_t task_id; /* index in the task array */
- __code char *name; /* task name */
- uint8_t stack[AO_STACK_SIZE]; /* saved stack */
-};
-
-extern __xdata struct ao_task *__data ao_cur_task;
-
-#define AO_NUM_TASKS 16 /* maximum number of tasks */
-#define AO_NO_TASK 0 /* no task id */
-
-/*
- ao_task.c
- */
-
-/* Suspend the current task until wchan is awoken */
-void
-ao_sleep(__xdata void *wchan);
-
-/* Wake all tasks sleeping on wchan */
-void
-ao_wakeup(__xdata void *wchan);
-
-/* Yield the processor to another task */
-void
-ao_yield(void) _naked;
-
-/* Add a task to the run queue */
-void
-ao_add_task(__xdata struct ao_task * task, void (*start)(void), __code char *name) __reentrant;
-
-/* Dump task info to console */
-void
-ao_task_info(void);
-
-/* Start the scheduler. This will not return */
-void
-ao_start_scheduler(void);
-
-/*
- * ao_panic.c
- */
-
-#define AO_PANIC_NO_TASK 1 /* AO_NUM_TASKS is not large enough */
-#define AO_PANIC_DMA 2 /* Attempt to start DMA while active */
-#define AO_PANIC_MUTEX 3 /* Mis-using mutex API */
-#define AO_PANIC_EE 4 /* Mis-using eeprom API */
-#define AO_PANIC_LOG 5 /* Failing to read/write log data */
-#define AO_PANIC_CMD 6 /* Too many command sets registered */
-
-/* Stop the operating system, beeping and blinking the reason */
-void
-ao_panic(uint8_t reason);
-
-/*
- * ao_timer.c
- */
-
-/* Our timer runs at 100Hz */
-#define AO_MS_TO_TICKS(ms) ((ms) / 10)
-#define AO_SEC_TO_TICKS(s) ((s) * 100)
-
-/* Returns the current time in ticks */
-uint16_t
-ao_time(void);
-
-/* Suspend the current task until ticks time has passed */
-void
-ao_delay(uint16_t ticks);
-
-/* Set the ADC interval */
-void
-ao_timer_set_adc_interval(uint8_t interval) __critical;
-
-/* Timer interrupt */
-void
-ao_timer_isr(void) interrupt 9;
-
-/* Initialize the timer */
-void
-ao_timer_init(void);
-
-/*
- * ao_adc.c
- */
-
-#define AO_ADC_RING 64
-#define ao_adc_ring_next(n) (((n) + 1) & (AO_ADC_RING - 1))
-#define ao_adc_ring_prev(n) (((n) - 1) & (AO_ADC_RING - 1))
-
-/*
- * One set of samples read from the A/D converter
- */
-struct ao_adc {
- uint16_t tick; /* tick when the sample was read */
- int16_t accel; /* accelerometer */
- int16_t pres; /* pressure sensor */
- int16_t temp; /* temperature sensor */
- int16_t v_batt; /* battery voltage */
- int16_t sense_d; /* drogue continuity sense */
- int16_t sense_m; /* main continuity sense */
-};
-
-/*
- * A/D data is stored in a ring, with the next sample to be written
- * at ao_adc_head
- */
-extern volatile __xdata struct ao_adc ao_adc_ring[AO_ADC_RING];
-extern volatile __data uint8_t ao_adc_head;
-
-/* Trigger a conversion sequence (called from the timer interrupt) */
-void
-ao_adc_poll(void);
-
-/* Suspend the current task until another A/D sample is converted */
-void
-ao_adc_sleep(void);
-
-/* Get a copy of the last complete A/D sample set */
-void
-ao_adc_get(__xdata struct ao_adc *packet);
-
-/* The A/D interrupt handler */
-#if !AO_NO_ADC_ISR
-void
-ao_adc_isr(void) interrupt 1;
-#endif
-
-/* Initialize the A/D converter */
-void
-ao_adc_init(void);
-
-/*
- * ao_beep.c
- */
-
-/*
- * Various pre-defined beep frequencies
- *
- * frequency = 1/2 (24e6/32) / beep
- */
-
-#define AO_BEEP_LOW 150 /* 2500Hz */
-#define AO_BEEP_MID 94 /* 3989Hz */
-#define AO_BEEP_HIGH 75 /* 5000Hz */
-#define AO_BEEP_OFF 0 /* off */
-
-#define AO_BEEP_g 240 /* 1562.5Hz */
-#define AO_BEEP_gs 227 /* 1652Hz (1655Hz) */
-#define AO_BEEP_aa 214 /* 1752Hz (1754Hz) */
-#define AO_BEEP_bbf 202 /* 1856Hz (1858Hz) */
-#define AO_BEEP_bb 190 /* 1974Hz (1969Hz) */
-#define AO_BEEP_cc 180 /* 2083Hz (2086Hz) */
-#define AO_BEEP_ccs 170 /* 2205Hz (2210Hz) */
-#define AO_BEEP_dd 160 /* 2344Hz (2341Hz) */
-#define AO_BEEP_eef 151 /* 2483Hz (2480Hz) */
-#define AO_BEEP_ee 143 /* 2622Hz (2628Hz) */
-#define AO_BEEP_ff 135 /* 2778Hz (2784Hz) */
-#define AO_BEEP_ffs 127 /* 2953Hz (2950Hz) */
-#define AO_BEEP_gg 120 /* 3125Hz */
-#define AO_BEEP_ggs 113 /* 3319Hz (3311Hz) */
-#define AO_BEEP_aaa 107 /* 3504Hz (3508Hz) */
-#define AO_BEEP_bbbf 101 /* 3713Hz (3716Hz) */
-#define AO_BEEP_bbb 95 /* 3947Hz (3937Hz) */
-#define AO_BEEP_ccc 90 /* 4167Hz (4171Hz) */
-#define AO_BEEP_cccs 85 /* 4412Hz (4419Hz) */
-#define AO_BEEP_ddd 80 /* 4688Hz (4682Hz) */
-#define AO_BEEP_eeef 76 /* 4934Hz (4961Hz) */
-#define AO_BEEP_eee 71 /* 5282Hz (5256Hz) */
-#define AO_BEEP_fff 67 /* 5597Hz (5568Hz) */
-#define AO_BEEP_fffs 64 /* 5859Hz (5899Hz) */
-#define AO_BEEP_ggg 60 /* 6250Hz */
-
-/* Set the beeper to the specified tone */
-void
-ao_beep(uint8_t beep);
-
-/* Turn on the beeper for the specified time */
-void
-ao_beep_for(uint8_t beep, uint16_t ticks) __reentrant;
-
-/* Initialize the beeper */
-void
-ao_beep_init(void);
-
-/*
- * ao_led.c
- */
-
-#define AO_LED_NONE 0
-#define AO_LED_GREEN 1
-#define AO_LED_RED 2
-
-/* Turn on the specified LEDs */
-void
-ao_led_on(uint8_t colors);
-
-/* Turn off the specified LEDs */
-void
-ao_led_off(uint8_t colors);
-
-/* Set all of the LEDs to the specified state */
-void
-ao_led_set(uint8_t colors);
-
-/* Toggle the specified LEDs */
-void
-ao_led_toggle(uint8_t colors);
-
-/* Turn on the specified LEDs for the indicated interval */
-void
-ao_led_for(uint8_t colors, uint16_t ticks) __reentrant;
-
-/* Initialize the LEDs */
-void
-ao_led_init(uint8_t enable);
-
-/*
- * ao_usb.c
- */
-
-/* Put one character to the USB output queue */
-void
-ao_usb_putchar(char c);
-
-/* Get one character from the USB input queue */
-char
-ao_usb_getchar(void);
-
-/* Flush the USB output queue */
-void
-ao_usb_flush(void);
-
-/* USB interrupt handler */
-void
-ao_usb_isr(void) interrupt 6;
-
-/* Enable the USB controller */
-void
-ao_usb_enable(void);
-
-/* Disable the USB controller */
-void
-ao_usb_disable(void);
-
-/* Initialize the USB system */
-void
-ao_usb_init(void);
-
-/*
- * ao_cmd.c
- */
-
-enum ao_cmd_status {
- ao_cmd_success = 0,
- ao_cmd_lex_error = 1,
- ao_cmd_syntax_error = 2,
-};
-
-extern __xdata uint16_t ao_cmd_lex_i;
-extern __xdata char ao_cmd_lex_c;
-extern __xdata enum ao_cmd_status ao_cmd_status;
-
-void
-ao_cmd_lex(void);
-
-void
-ao_cmd_put8(uint8_t v);
-
-void
-ao_cmd_put16(uint16_t v);
-
-void
-ao_cmd_white(void);
-
-void
-ao_cmd_hex(void);
-
-void
-ao_cmd_decimal(void);
-
-struct ao_cmds {
- char cmd;
- void (*func)(void);
- const char *help;
-};
-
-void
-ao_cmd_register(__code struct ao_cmds *cmds);
-
-void
-ao_cmd_init(void);
-
-/*
- * ao_dma.c
- */
-
-/* Allocate a DMA channel. the 'done' parameter will be set to 1
- * when the dma is finished and will be used to wakeup any waiters
- */
-uint8_t
-ao_dma_alloc(__xdata uint8_t * done);
-
-/* Setup a DMA channel */
-void
-ao_dma_set_transfer(uint8_t id,
- void __xdata *srcaddr,
- void __xdata *dstaddr,
- uint16_t count,
- uint8_t cfg0,
- uint8_t cfg1);
-
-/* Start a DMA channel */
-void
-ao_dma_start(uint8_t id);
-
-/* Manually trigger a DMA channel */
-void
-ao_dma_trigger(uint8_t id);
-
-/* Abort a running DMA transfer */
-void
-ao_dma_abort(uint8_t id);
-
-/* DMA interrupt routine */
-void
-ao_dma_isr(void) interrupt 8;
-
-/*
- * ao_mutex.c
- */
-
-void
-ao_mutex_get(__xdata uint8_t *ao_mutex) __reentrant;
-
-void
-ao_mutex_put(__xdata uint8_t *ao_mutex) __reentrant;
-
-/*
- * ao_ee.c
- */
-
-/*
- * We reserve the last block on the device for
- * configuration space. Writes and reads in this
- * area return errors.
- */
-
-#define AO_EE_BLOCK_SIZE ((uint16_t) (256))
-#define AO_EE_DEVICE_SIZE ((uint32_t) 128 * (uint32_t) 1024)
-#define AO_EE_DATA_SIZE (AO_EE_DEVICE_SIZE - (uint32_t) AO_EE_BLOCK_SIZE)
-#define AO_EE_CONFIG_BLOCK ((uint16_t) (AO_EE_DATA_SIZE / AO_EE_BLOCK_SIZE))
-
-void
-ao_ee_flush(void) __reentrant;
-
-/* Write to the eeprom */
-uint8_t
-ao_ee_write(uint32_t pos, uint8_t *buf, uint16_t len) __reentrant;
-
-/* Read from the eeprom */
-uint8_t
-ao_ee_read(uint32_t pos, uint8_t *buf, uint16_t len) __reentrant;
-
-/* Write the config block (at the end of the eeprom) */
-uint8_t
-ao_ee_write_config(uint8_t *buf, uint16_t len) __reentrant;
-
-/* Read the config block (at the end of the eeprom) */
-uint8_t
-ao_ee_read_config(uint8_t *buf, uint16_t len) __reentrant;
-
-/* Initialize the EEPROM code */
-void
-ao_ee_init(void);
-
-/*
- * ao_log.c
- */
-
-/* Structure containing GPS position, either lat or lon */
-
-struct ao_gps_pos {
- uint8_t degrees;
- uint8_t minutes;
- uint16_t minutes_fraction; /* in units of 1/10000 minutes */
-};
-
-/*
- * The data log is recorded in the eeprom as a sequence
- * of data packets.
- *
- * Each packet starts with a 4-byte header that has the
- * packet type, the packet checksum and the tick count. Then
- * they all contain 2 16 bit values which hold packet-specific
- * data.
- *
- * For each flight, the first packet
- * is FLIGHT packet, indicating the serial number of the
- * device and a unique number marking the number of flights
- * recorded by this device.
- *
- * During flight, data from the accelerometer and barometer
- * are recorded in SENSOR packets, using the raw 16-bit values
- * read from the A/D converter.
- *
- * Also during flight, but at a lower rate, the deployment
- * sensors are recorded in DEPLOY packets. The goal here is to
- * detect failure in the deployment circuits.
- *
- * STATE packets hold state transitions as the flight computer
- * transitions through different stages of the flight.
- */
-#define AO_LOG_FLIGHT 'F'
-#define AO_LOG_SENSOR 'A'
-#define AO_LOG_TEMP_VOLT 'T'
-#define AO_LOG_DEPLOY 'D'
-#define AO_LOG_STATE 'S'
-#define AO_LOG_GPS_TIME 'G'
-#define AO_LOG_GPS_LAT 'N'
-#define AO_LOG_GPS_LON 'W'
-#define AO_LOG_GPS_ALT 'H'
-
-#define AO_LOG_POS_NONE (~0UL)
-
-struct ao_log_record {
- char type;
- uint8_t csum;
- uint16_t tick;
- union {
- struct {
- int16_t ground_accel;
- uint16_t flight;
- } flight;
- struct {
- int16_t accel;
- int16_t pres;
- } sensor;
- struct {
- int16_t temp;
- int16_t v_batt;
- } temp_volt;
- struct {
- int16_t drogue;
- int16_t main;
- } deploy;
- struct {
- uint16_t state;
- uint16_t reason;
- } state;
- struct {
- uint8_t hour;
- uint8_t minute;
- uint8_t second;
- uint8_t flags;
- } gps_time;
- struct ao_gps_pos gps_latitude;
- struct ao_gps_pos gps_longitude;
- struct {
- int16_t altitude;
- uint16_t unused;
- } gps_altitude;
- struct {
- uint16_t d0;
- uint16_t d1;
- } anon;
- } u;
-};
-
-/* Write a record to the eeprom log */
-void
-ao_log_data(struct ao_log_record *log);
-
-/* Flush the log */
-void
-ao_log_flush(void);
-
-/* Log dumping API:
- * ao_log_dump_first() - get first log record
- * ao_log_dump_next() - get next log record
- */
-extern __xdata struct ao_log_record ao_log_dump;
-
-/* Retrieve first log record for the current flight */
-uint8_t
-ao_log_dump_first(void);
-
-/* return next log record for the current flight */
-uint8_t
-ao_log_dump_next(void);
-
-/* Logging thread main routine */
-void
-ao_log(void);
-
-/* Start logging to eeprom */
-void
-ao_log_start(void);
-
-/* Stop logging */
-void
-ao_log_stop(void);
-
-/* Initialize the logging system */
-void
-ao_log_init(void);
-
-/*
- * ao_flight.c
- */
-
-enum ao_flight_state {
- ao_flight_startup = 0,
- ao_flight_idle = 1,
- ao_flight_launchpad = 2,
- ao_flight_boost = 3,
- ao_flight_coast = 4,
- ao_flight_apogee = 5,
- ao_flight_drogue = 6,
- ao_flight_main = 7,
- ao_flight_landed = 8,
- ao_flight_invalid = 9
-};
-
-extern __xdata struct ao_adc ao_flight_data;
-extern __pdata enum ao_flight_state ao_flight_state;
-extern __pdata uint16_t ao_flight_tick;
-extern __pdata int16_t ao_flight_accel;
-extern __pdata int16_t ao_flight_pres;
-extern __pdata int32_t ao_flight_vel;
-extern __pdata int16_t ao_ground_pres;
-extern __pdata int16_t ao_ground_accel;
-extern __pdata int16_t ao_min_pres;
-extern __pdata uint16_t ao_launch_time;
-
-/* Flight thread */
-void
-ao_flight(void);
-
-/* Initialize flight thread */
-void
-ao_flight_init(void);
-
-/*
- * ao_report.c
- */
-
-void
-ao_report_init(void);
-
-/*
- * ao_convert.c
- *
- * Given raw data, convert to SI units
- */
-
-/* pressure from the sensor to altitude in meters */
-int16_t
-ao_pres_to_altitude(int16_t pres) __reentrant;
-
-int16_t
-ao_altitude_to_pres(int16_t alt) __reentrant;
-
-int16_t
-ao_temp_to_dC(int16_t temp) __reentrant;
-
-/*
- * ao_dbg.c
- *
- * debug another telemetrum board
- */
-
-/* Send a byte to the dbg target */
-void
-ao_dbg_send_byte(uint8_t byte);
-
-/* Receive a byte from the dbg target */
-uint8_t
-ao_dbg_recv_byte(void);
-
-/* Start a bulk transfer to/from dbg target memory */
-void
-ao_dbg_start_transfer(uint16_t addr);
-
-/* End a bulk transfer to/from dbg target memory */
-void
-ao_dbg_end_transfer(void);
-
-/* Write a byte to dbg target memory */
-void
-ao_dbg_write_byte(uint8_t byte);
-
-/* Read a byte from dbg target memory */
-uint8_t
-ao_dbg_read_byte(void);
-
-/* Enable dbg mode, switching use of the pins */
-void
-ao_dbg_debug_mode(void);
-
-/* Reset the dbg target */
-void
-ao_dbg_reset(void);
-
-void
-ao_dbg_init(void);
-
-/*
- * ao_serial.c
- */
-
-#if !AO_NO_SERIAL_ISR
-void
-ao_serial_rx1_isr(void) interrupt 3;
-
-void
-ao_serial_tx1_isr(void) interrupt 14;
-#endif
-
-char
-ao_serial_getchar(void) __critical;
-
-void
-ao_serial_putchar(char c) __critical;
-
-void
-ao_serial_init(void);
-
-/*
- * ao_gps.c
- */
-
-#define AO_GPS_NUM_SAT_MASK (0xf << 0)
-#define AO_GPS_NUM_SAT_SHIFT (0)
-
-#define AO_GPS_VALID (1 << 4)
-#define AO_GPS_LONGITUDE_MASK (1 << 5)
-#define AO_GPS_LONGITUDE_EAST (0 << 5)
-#define AO_GPS_LONGITUDE_WEST (1 << 5)
-
-#define AO_GPS_LATITUDE_MASK (1 << 6)
-#define AO_GPS_LATITUDE_NORTH (0 << 6)
-#define AO_GPS_LATITUDE_SOUTH (1 << 6)
-
-struct ao_gps_data {
- uint8_t hour;
- uint8_t minute;
- uint8_t second;
- uint8_t flags;
- struct ao_gps_pos latitude;
- struct ao_gps_pos longitude;
- int16_t altitude;
-};
-
-extern __xdata uint8_t ao_gps_mutex;
-extern __xdata struct ao_gps_data ao_gps_data;
-
-void
-ao_gps(void);
-
-void
-ao_gps_print(__xdata struct ao_gps_data *gps_data);
-
-void
-ao_gps_init(void);
-
-/*
- * ao_gps_report.c
- */
-
-void
-ao_gps_report(void);
-
-void
-ao_gps_report_init(void);
-
-/*
- * ao_telemetry.c
- */
-
-#define AO_MAX_CALLSIGN 8
-
-struct ao_telemetry {
- uint8_t addr;
- uint8_t flight_state;
- int16_t flight_accel;
- int16_t ground_accel;
- int32_t flight_vel;
- int16_t flight_pres;
- int16_t ground_pres;
- struct ao_adc adc;
- struct ao_gps_data gps;
- char callsign[AO_MAX_CALLSIGN];
-};
-
-/* Set delay between telemetry reports (0 to disable) */
-
-#define AO_TELEMETRY_INTERVAL_PAD AO_MS_TO_TICKS(1000)
-#define AO_TELEMETRY_INTERVAL_FLIGHT AO_MS_TO_TICKS(50)
-#define AO_TELEMETRY_INTERVAL_RECOVER AO_MS_TO_TICKS(1000)
-
-void
-ao_telemetry_set_interval(uint16_t interval);
-
-void
-ao_telemetry_init(void);
-
-/*
- * ao_radio.c
- */
-
-void
-ao_radio_send(__xdata struct ao_telemetry *telemetry) __reentrant;
-
-struct ao_radio_recv {
- struct ao_telemetry telemetry;
- int8_t rssi;
- uint8_t status;
-};
-
-void
-ao_radio_recv(__xdata struct ao_radio_recv *recv) __reentrant;
-
-void
-ao_radio_init(void);
-
-/*
- * ao_monitor.c
- */
-
-extern const char const * const ao_state_names[];
-
-void
-ao_monitor(void);
-
-void
-ao_set_monitor(uint8_t monitoring);
-
-void
-ao_monitor_init(uint8_t led, uint8_t monitoring) __reentrant;
-
-/*
- * ao_stdio.c
- */
-
-void
-flush(void);
-
-/*
- * ao_ignite.c
- */
-
-enum ao_igniter {
- ao_igniter_drogue = 0,
- ao_igniter_main = 1
-};
-
-void
-ao_ignite(enum ao_igniter igniter);
-
-enum ao_igniter_status {
- ao_igniter_unknown, /* unknown status (ambiguous voltage) */
- ao_igniter_ready, /* continuity detected */
- ao_igniter_active, /* igniter firing */
- ao_igniter_open, /* open circuit detected */
-};
-
-enum ao_igniter_status
-ao_igniter_status(enum ao_igniter igniter);
-
-void
-ao_igniter_init(void);
-
-/*
- * ao_config.c
- */
-
-#define AO_CONFIG_MAJOR 1
-#define AO_CONFIG_MINOR 0
-
-struct ao_config {
- uint8_t major;
- uint8_t minor;
- uint16_t main_deploy;
- int16_t accel_zero_g;
- uint8_t radio_channel;
- char callsign[AO_MAX_CALLSIGN + 1];
-};
-
-extern __xdata struct ao_config ao_config;
-
-void
-ao_config_get(void);
-
-void
-ao_config_init(void);
-
-/*
- * ao_rssi.c
- */
-
-void
-ao_rssi_set(int rssi_value);
-
-void
-ao_rssi_init(uint8_t rssi_led);
-
-/*
- * ao_product.c
- *
- * values which need to be defined for
- * each instance of a product
- */
-
-extern const uint8_t ao_usb_descriptors [];
-extern const uint16_t ao_serial_number;
-extern const char ao_version[];
-extern const char ao_manufacturer[];
-extern const char ao_product[];
-
-/*
- * Fifos
- */
-
-#define AO_FIFO_SIZE 32
-
-struct ao_fifo {
- uint8_t insert;
- uint8_t remove;
- char fifo[AO_FIFO_SIZE];
-};
-
-#define ao_fifo_insert(f,c) do { \
- (f).fifo[(f).insert] = (c); \
- (f).insert = ((f).insert + 1) & (AO_FIFO_SIZE-1); \
-} while(0)
-
-#define ao_fifo_remove(f,c) do {\
- c = (f).fifo[(f).remove]; \
- (f).remove = ((f).remove + 1) & (AO_FIFO_SIZE-1); \
-} while(0)
-
-#define ao_fifo_full(f) ((((f).insert + 1) & (AO_FIFO_SIZE-1)) == (f).remove)
-#define ao_fifo_empty(f) ((f).insert == (f).remove)
-
-/*
- * ao_packet.c
- *
- * Packet-based command interface
- */
-
-#define AO_PACKET_MAX 32
-#define AO_PACKET_WIN 256
-
-#define AO_PACKET_FIN (1 << 0)
-#define AO_PACKET_SYN (1 << 1)
-#define AO_PACKET_RST (1 << 2)
-#define AO_PACKET_ACK (1 << 3)
-
-struct ao_packet {
- uint8_t addr;
- uint8_t flags;
- uint16_t seq;
- uint16_t ack;
- uint16_t window;
- uint8_t len;
- uint8_t d[AO_PACKET_MAX];
-};
-
-uint8_t
-ao_packet_connect(uint8_t dest);
-
-uint8_t
-ao_packet_accept(void);
-
-int
-ao_packet_send(uint8_t *data, int len);
-
-int
-ao_packet_recv(uint8_t *data, int len);
-
-void
-ao_packet_init(void);
-
-#endif /* _AO_H_ */