mirror of
https://github.com/oliverschmidt/contiki.git
synced 2024-08-26 10:28:58 +00:00
693 lines
18 KiB
C
693 lines
18 KiB
C
/*
|
|
* Copyright (c) 2010, Swedish Institute of Computer Science
|
|
* All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
* 3. Neither the name of the Institute nor the names of its contributors
|
|
* may be used to endorse or promote products derived from this software
|
|
* without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
|
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
|
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
* SUCH DAMAGE.
|
|
*
|
|
* This file is part of the Contiki operating system.
|
|
*
|
|
*/
|
|
|
|
/**
|
|
* \file
|
|
* Checkpoint library implementation for the Tmote Sky platform.
|
|
*
|
|
* \author
|
|
* Fredrik Osterlind <fros@sics.se>
|
|
*/
|
|
|
|
#include "contiki.h"
|
|
|
|
#include "lib/crc16.h"
|
|
#include "lib/checkpoint.h"
|
|
|
|
#include "sys/rtimer.h"
|
|
#include "sys/mt.h"
|
|
#include "sys/energest.h"
|
|
#include "sys/compower.h"
|
|
#include "dev/leds.h"
|
|
#include "dev/watchdog.h"
|
|
#include "dev/serial-line.h"
|
|
#include "dev/uart1.h"
|
|
#include "dev/cc2420.h"
|
|
#include "dev/button-sensor.h"
|
|
#include "cfs/cfs.h"
|
|
#include "cfs/cfs-coffee.h"
|
|
#include <stdio.h>
|
|
|
|
#define DEBUG 0
|
|
#if DEBUG
|
|
#define PRINTF(...) printf(__VA_ARGS__)
|
|
#else
|
|
#define PRINTF(...)
|
|
#endif
|
|
|
|
#ifndef CHECKPOINT_ROLLBACK_BUTTON
|
|
#define CHECKPOINT_ROLLBACK_BUTTON 1 /* rollback "cp_wdt" on button click */
|
|
#endif /* CHECKPOINT_ROLLBACK_BUTTON */
|
|
|
|
#if CHECKPOINT_ROLLBACK_BUTTON
|
|
PROCESS(checkpoint_button_process, "Rollback on button");
|
|
#endif /* CHECKPOINT_ROLLBACK_BUTTON */
|
|
|
|
#define WITH_SERIAL_COMMANDS 0 /* checkpoint via serial port */
|
|
#if WITH_SERIAL_COMMANDS
|
|
#if UART1_CONF_TX_WITH_INTERRUPT
|
|
#error TX_WITH_INTERRUPTS must be 0
|
|
#endif /* UART1_CONF_TX_WITH_INTERRUPT */
|
|
#define PRINTF_COMMAND(...) printf(__VA_ARGS__)
|
|
#else /* WITH_SERIAL_COMMANDS */
|
|
#define PRINTF_COMMAND(...)
|
|
#endif /* WITH_SERIAL_COMMANDS */
|
|
|
|
#define COMMAND_ROLLBACK 1
|
|
#define COMMAND_CHECKPOINT 2
|
|
#define COMMAND_METRICS 3
|
|
|
|
#define INCLUDE_RAM 1 /* Less then 10240 bytes */
|
|
#define INCLUDE_TIMERS 1 /* 16 bytes */
|
|
#define INCLUDE_LEDS 1 /* 1 bytes */
|
|
/* ... */
|
|
|
|
/* 10kb memory */
|
|
#define RAM_START 0x1100
|
|
#define RAM_END 0x3900
|
|
|
|
#define PAUSE_TIME() \
|
|
TACTL &= ~(MC1); \
|
|
TBCTL &= ~(MC1); \
|
|
watchdog_stop();
|
|
#define RESUME_TIME() \
|
|
TACTL |= MC1; \
|
|
TBCTL |= MC1; \
|
|
TACCR1 = clock_fine_max(); \
|
|
watchdog_start();
|
|
#define PAUSE_TIME_INT() \
|
|
dint(); \
|
|
PAUSE_TIME();
|
|
#define RESUME_TIME_INT() \
|
|
RESUME_TIME(); \
|
|
eint();
|
|
|
|
static struct mt_thread checkpoint_thread;
|
|
static uint8_t preset_cmd;
|
|
static int preset_fd;
|
|
|
|
/* bookkeeping */
|
|
#if WITH_SERIAL_COMMANDS
|
|
static int nr_pongs=0;
|
|
#endif /* WITH_SERIAL_COMMANDS */
|
|
static int nr_checkpoints=0, nr_rollbacks=0, nr_metrics=0;
|
|
|
|
/*---------------------------------------------------------------------------*/
|
|
typedef union {
|
|
unsigned char u8[2];
|
|
unsigned short u16;
|
|
} word_union_t;
|
|
/*---------------------------------------------------------------------------*/
|
|
static int
|
|
write_byte(int fd, uint8_t c)
|
|
{
|
|
return cfs_write(fd, &c, 1);
|
|
}
|
|
/*---------------------------------------------------------------------------*/
|
|
static void
|
|
write_word(int fd, uint16_t w)
|
|
{
|
|
word_union_t tmp;
|
|
tmp.u16 = w;
|
|
write_byte(fd, tmp.u8[0]);
|
|
write_byte(fd, tmp.u8[1]);
|
|
}
|
|
/*---------------------------------------------------------------------------*/
|
|
static uint8_t
|
|
read_byte(int fd)
|
|
{
|
|
uint8_t c;
|
|
cfs_read(fd, &c, 1);
|
|
return c;
|
|
}
|
|
/*---------------------------------------------------------------------------*/
|
|
static uint16_t
|
|
read_word(int fd)
|
|
{
|
|
word_union_t tmp;
|
|
tmp.u8[0] = read_byte(fd);
|
|
tmp.u8[1] = read_byte(fd);
|
|
return tmp.u16;
|
|
}
|
|
/*---------------------------------------------------------------------------*/
|
|
static void
|
|
thread_checkpoint(int fd)
|
|
{
|
|
#if INCLUDE_RAM
|
|
unsigned char *addr;
|
|
uint16_t size = 0;
|
|
unsigned char *thread_mem_start = (unsigned char *)&checkpoint_thread.thread.stack;
|
|
unsigned char *thread_mem_end = thread_mem_start + sizeof(checkpoint_thread.thread.stack) - 1;
|
|
unsigned char *coffee_mem_start = cfs_coffee_get_protected_mem(&size);
|
|
unsigned char *coffee_mem_end = coffee_mem_start + size - 1;
|
|
#endif /* INCLUDE_RAM */
|
|
|
|
/*PRINTF("protected thread memory: %u, size=%u\n", (uint16_t) thread_mem_start, sizeof(checkpoint_thread.thread.stack));*/
|
|
/*PRINTF("protected coffee memory: %u, size=%u\n", (uint16_t) coffee_mem_start, size);*/
|
|
|
|
/* RAM */
|
|
#if INCLUDE_RAM
|
|
for(addr = (unsigned char *)RAM_START;
|
|
addr < (unsigned char *)RAM_END;
|
|
addr++) {
|
|
|
|
if((addr >= thread_mem_start && addr <= thread_mem_end)) {
|
|
/* Skip */
|
|
continue;
|
|
}
|
|
|
|
if((addr >= coffee_mem_start && addr <= coffee_mem_end)) {
|
|
/* Skip */
|
|
continue;
|
|
}
|
|
|
|
/* TODO Use write_array() */
|
|
write_byte(fd, *addr);
|
|
|
|
/*if(((int)addr % 512) == 0) {
|
|
PRINTF(".");
|
|
}*/
|
|
}
|
|
|
|
#endif /* INCLUDE_RAM */
|
|
|
|
/* Timers */
|
|
#if INCLUDE_TIMERS
|
|
write_word(fd, TACTL);
|
|
write_word(fd, TACCTL1);
|
|
write_word(fd, TACCR1);
|
|
write_word(fd, TAR);
|
|
|
|
write_word(fd, TBCTL);
|
|
write_word(fd, TBCCTL1);
|
|
write_word(fd, TBCCR1);
|
|
write_word(fd, TBR);
|
|
#endif /* INCLUDE_TIMERS */
|
|
|
|
/* LEDs */
|
|
#if INCLUDE_LEDS
|
|
write_byte(fd, leds_arch_get());
|
|
#endif /* INCLUDE_LEDS */
|
|
|
|
/* Radio */
|
|
/* ADC */
|
|
/* ... */
|
|
|
|
write_byte(fd, -1); /* Coffee padding byte */
|
|
}
|
|
/*---------------------------------------------------------------------------*/
|
|
static void
|
|
thread_rollback(int fd)
|
|
{
|
|
#if INCLUDE_RAM
|
|
unsigned char *addr;
|
|
uint16_t size = 0;
|
|
unsigned char *thread_mem_start = (unsigned char *)&checkpoint_thread.thread.stack;
|
|
unsigned char *thread_mem_end = thread_mem_start + sizeof(checkpoint_thread.thread.stack) - 1;
|
|
unsigned char *coffee_mem_start = cfs_coffee_get_protected_mem(&size);
|
|
unsigned char *coffee_mem_end = coffee_mem_start + size - 1;
|
|
#endif /* INCLUDE_RAM */
|
|
|
|
/*PRINTF("protected thread memory: %u, size=%u\n", (uint16_t) thread_mem_start, sizeof(checkpoint_thread.thread.stack));*/
|
|
/*PRINTF("protected coffee memory: %u, size=%u\n", (uint16_t) coffee_mem_start, size);*/
|
|
|
|
/* RAM */
|
|
#if INCLUDE_RAM
|
|
for(addr = (unsigned char *)RAM_START;
|
|
addr < (unsigned char *)RAM_END;
|
|
addr++) {
|
|
if((addr >= thread_mem_start && addr <= thread_mem_end)) {
|
|
/* Skip */
|
|
continue;
|
|
}
|
|
|
|
if((addr >= coffee_mem_start && addr <= coffee_mem_end)) {
|
|
/* Skip */
|
|
continue;
|
|
}
|
|
|
|
*addr = read_byte(fd);
|
|
}
|
|
#endif /* INCLUDE_RAM */
|
|
|
|
/* Timers */
|
|
#if INCLUDE_TIMERS
|
|
TACTL = read_word(fd);
|
|
TACCTL1 = read_word(fd);
|
|
TACCR1 = read_word(fd);
|
|
TAR = read_word(fd);
|
|
|
|
TBCTL = read_word(fd);
|
|
TBCCTL1 = read_word(fd);
|
|
TBCCR1 = read_word(fd);
|
|
TBR = read_word(fd);
|
|
#endif /* INCLUDE_TIMERS */
|
|
|
|
/* LEDs */
|
|
#if INCLUDE_LEDS
|
|
leds_arch_set(read_byte(fd));
|
|
#endif /* INCLUDE_LEDS */
|
|
|
|
/* Radio */
|
|
/* ADC */
|
|
/* ... */
|
|
|
|
read_byte(fd); /* Coffee padding byte */
|
|
}
|
|
/*---------------------------------------------------------------------------*/
|
|
#if WITH_SERIAL_COMMANDS
|
|
static uint32_t
|
|
thread_metric_tx(void)
|
|
{
|
|
energest_flush();
|
|
return energest_type_time(ENERGEST_TYPE_TRANSMIT);
|
|
}
|
|
/*---------------------------------------------------------------------------*/
|
|
static uint32_t
|
|
thread_metric_rx(void)
|
|
{
|
|
energest_flush();
|
|
return energest_type_time(ENERGEST_TYPE_LISTEN);
|
|
}
|
|
#endif /* WITH_SERIAL_COMMANDS */
|
|
/*---------------------------------------------------------------------------*/
|
|
static void
|
|
thread_metrics(void)
|
|
{
|
|
PRINTF_COMMAND("METRICS:START\n");
|
|
PRINTF_COMMAND("M:RTIMER_NOW:%u\n", RTIMER_NOW()); /* TODO extract */
|
|
PRINTF_COMMAND("M:ENERGY_TX:%lu\n", thread_metric_tx());
|
|
PRINTF_COMMAND("M:ENERGY_RX:%lu\n", thread_metric_rx());
|
|
PRINTF_COMMAND("M:RTIMER_NOW2:%u\n", RTIMER_NOW());
|
|
nr_metrics++;
|
|
PRINTF_COMMAND("METRICS:DONE %u\n", nr_metrics);
|
|
}
|
|
/*---------------------------------------------------------------------------*/
|
|
static void
|
|
checkpoint_thread_loop(void *data)
|
|
{
|
|
uint8_t cmd;
|
|
int fd;
|
|
|
|
while(1) {
|
|
/* Store command and file descriptor on stack */
|
|
cmd = preset_cmd;
|
|
fd = preset_fd;
|
|
|
|
/* Handle command */
|
|
if(cmd == COMMAND_ROLLBACK) {
|
|
PRINTF_COMMAND("RB:START\n");
|
|
thread_rollback(fd);
|
|
nr_rollbacks++;
|
|
PRINTF_COMMAND("RB:DONE %u\n", nr_rollbacks);
|
|
/* TODO Synch before leaving this thread. */
|
|
} else if(cmd == COMMAND_CHECKPOINT) {
|
|
PRINTF_COMMAND("CP:START\n");
|
|
thread_checkpoint(fd);
|
|
thread_metrics();
|
|
nr_checkpoints++;
|
|
PRINTF_COMMAND("CP:DONE %u\n", nr_checkpoints);
|
|
} else if(cmd == COMMAND_METRICS) {
|
|
thread_metrics();
|
|
} else {
|
|
printf("ERROR: Unknown thread command: %u\n", cmd);
|
|
}
|
|
|
|
/* Return to Contiki */
|
|
mt_yield();
|
|
}
|
|
}
|
|
/*---------------------------------------------------------------------------*/
|
|
int
|
|
checkpoint_arch_size()
|
|
{
|
|
return 10258;
|
|
}
|
|
/*---------------------------------------------------------------------------*/
|
|
void
|
|
checkpoint_arch_checkpoint(int fd)
|
|
{
|
|
PAUSE_TIME_INT();
|
|
|
|
preset_cmd = COMMAND_CHECKPOINT;
|
|
preset_fd = fd;
|
|
mt_exec(&checkpoint_thread);
|
|
|
|
RESUME_TIME_INT();
|
|
}
|
|
/*---------------------------------------------------------------------------*/
|
|
void
|
|
checkpoint_arch_rollback(int fd)
|
|
{
|
|
PAUSE_TIME_INT();
|
|
|
|
preset_cmd = COMMAND_ROLLBACK;
|
|
preset_fd = fd;
|
|
mt_exec(&checkpoint_thread);
|
|
|
|
RESUME_TIME_INT();
|
|
}
|
|
/*---------------------------------------------------------------------------*/
|
|
static uint8_t inited = 0;
|
|
void
|
|
checkpoint_arch_init(void)
|
|
{
|
|
if(inited) {
|
|
return;
|
|
}
|
|
|
|
mt_init();
|
|
mt_start(&checkpoint_thread, checkpoint_thread_loop, NULL);
|
|
inited = 1;
|
|
|
|
#if CHECKPOINT_ROLLBACK_BUTTON
|
|
process_start(&checkpoint_button_process, NULL);
|
|
#endif /* CHECKPOINT_ROLLBACK_BUTTON */
|
|
|
|
/*mt_stop(&checkpoint_thread);*/
|
|
/*mt_remove();*/
|
|
}
|
|
/*---------------------------------------------------------------------------*/
|
|
struct power_log {
|
|
uint32_t transmit;
|
|
uint32_t listen;
|
|
};
|
|
/*---------------------------------------------------------------------------*/
|
|
#if WITH_SERIAL_COMMANDS
|
|
static void
|
|
serial_interrupt_checkpoint()
|
|
{
|
|
int fd = 0;
|
|
PAUSE_TIME();
|
|
|
|
if(SPI_IS_ENABLED()) {
|
|
/* SPI is busy, abort */
|
|
PRINTF_COMMAND("CP:SPIBUSY\n");
|
|
RESUME_TIME();
|
|
return;
|
|
}
|
|
|
|
/* Open file */
|
|
cfs_remove("cp");
|
|
cfs_coffee_reserve("cp", checkpoint_arch_size());
|
|
fd = cfs_open("cp", CFS_WRITE);
|
|
|
|
if(fd < 0) {
|
|
printf("ERROR: No file access (cp)\n");
|
|
RESUME_TIME();
|
|
return;
|
|
}
|
|
|
|
/* Checkpoint */
|
|
preset_cmd = COMMAND_CHECKPOINT;
|
|
preset_fd = fd;
|
|
mt_exec(&checkpoint_thread);
|
|
|
|
/* Close file */
|
|
cfs_close(fd);
|
|
|
|
RESUME_TIME();
|
|
}
|
|
/*---------------------------------------------------------------------------*/
|
|
static void
|
|
serial_interrupt_rollback()
|
|
{
|
|
int fd = 0;
|
|
PAUSE_TIME();
|
|
|
|
if(SPI_IS_ENABLED()) {
|
|
/* SPI is busy, abort */
|
|
PRINTF_COMMAND("RB:SPIBUSY\n");
|
|
RESUME_TIME();
|
|
return;
|
|
}
|
|
|
|
/* Open file */
|
|
fd = cfs_open("cp", CFS_READ);
|
|
|
|
if(fd < 0) {
|
|
printf("ERROR: No file access (rb)\n");
|
|
RESUME_TIME();
|
|
return;
|
|
}
|
|
|
|
/* Rollback */
|
|
preset_cmd = COMMAND_ROLLBACK;
|
|
preset_fd = fd;
|
|
mt_exec(&checkpoint_thread);
|
|
|
|
/* Close file */
|
|
cfs_close(fd);
|
|
|
|
RESUME_TIME();
|
|
}
|
|
/*---------------------------------------------------------------------------*/
|
|
static void
|
|
serial_interrupt_metrics()
|
|
{
|
|
PAUSE_TIME();
|
|
|
|
preset_cmd = COMMAND_METRICS;
|
|
preset_fd = -1;
|
|
mt_exec(&checkpoint_thread);
|
|
|
|
RESUME_TIME();
|
|
}
|
|
/*---------------------------------------------------------------------------*/
|
|
static const unsigned char command_checkpoint[] = { 'c', 'p', '\n' };
|
|
static const unsigned char command_rollback[] = { 'r', 'b', '\n' };
|
|
static const unsigned char command_metrics[] = { 'm', 't', '\n' };
|
|
static volatile int command_checkpoint_state = 0;
|
|
static volatile int command_rollback_state = 0;
|
|
static volatile int command_metrics_state = 0;
|
|
/*---------------------------------------------------------------------------*/
|
|
static int
|
|
serial_input_byte_intercept(unsigned char c)
|
|
{
|
|
/* Detect checkpoint request */
|
|
if(command_checkpoint[command_checkpoint_state] == c) {
|
|
command_checkpoint_state++;
|
|
|
|
if(command_checkpoint_state == sizeof(command_checkpoint)) {
|
|
serial_interrupt_checkpoint();
|
|
command_checkpoint_state = 0;
|
|
}
|
|
} else {
|
|
command_checkpoint_state = 0;
|
|
}
|
|
|
|
/* Detect rollback request */
|
|
if(command_rollback[command_rollback_state] == c) {
|
|
command_rollback_state++;
|
|
|
|
if(command_rollback_state == sizeof(command_rollback)) {
|
|
serial_interrupt_rollback();
|
|
command_rollback_state = 0;
|
|
}
|
|
} else {
|
|
command_rollback_state = 0;
|
|
}
|
|
|
|
/* Detect metrics request */
|
|
if(command_metrics[command_metrics_state] == c) {
|
|
command_metrics_state++;
|
|
|
|
if(command_metrics_state == sizeof(command_metrics)) {
|
|
serial_interrupt_metrics();
|
|
command_metrics_state = 0;
|
|
}
|
|
} else {
|
|
command_metrics_state = 0;
|
|
}
|
|
|
|
/* Forward to serial line input byte */
|
|
return serial_line_input_byte(c);
|
|
}
|
|
/*---------------------------------------------------------------------------*/
|
|
static void
|
|
handle_get_command(void)
|
|
{
|
|
int fd = 0;
|
|
fd = cfs_open("cp", CFS_READ);
|
|
if(fd < 0) {
|
|
printf("ERROR: No file access (get)\n");
|
|
} else {
|
|
PRINTF_COMMAND("GET:START\n");
|
|
char data[8];
|
|
int offset=0, size=0, read=8;
|
|
unsigned short crc = 0;
|
|
cfs_seek(fd, offset, CFS_SEEK_SET);
|
|
|
|
while (read == 8) {
|
|
int i;
|
|
|
|
/*if(offset != cfs_seek(fd, offset, CFS_SEEK_SET)) {
|
|
printf("bad seek, breaking\n");
|
|
break;
|
|
}*/
|
|
read = cfs_read(fd, data, 8);
|
|
size += read;
|
|
|
|
printf("%04i: ", offset); /*REMOVE*/
|
|
for (i=0; i < read; i++) {
|
|
crc = crc16_add((uint8_t) data[i], crc);
|
|
printf("%02x", (uint8_t) (0xff&data[i]));
|
|
}
|
|
printf("\n");
|
|
|
|
offset += 8;
|
|
}
|
|
|
|
PRINTF_COMMAND("GET:DONE CRC=%u\n", crc);
|
|
cfs_close(fd);
|
|
}
|
|
}
|
|
/*---------------------------------------------------------------------------*/
|
|
static int
|
|
hex_decode_char(char c)
|
|
{
|
|
if(c >= 'A' && c <= 'F') {
|
|
return c - 'A' + 10;
|
|
} else if(c >= 'a' && c <= 'f') {
|
|
return c - 'a' + 10;
|
|
} else if(c >= '0' && c <= '9') {
|
|
return c - '0';
|
|
} else {
|
|
printf("WARN: bad hex: %c\n", c);
|
|
return 0;
|
|
}
|
|
}
|
|
/*---------------------------------------------------------------------------*/
|
|
PROCESS(checkpoint_serial_process, "Checkpoint via serial commands");
|
|
PROCESS_THREAD(checkpoint_serial_process, ev, data)
|
|
{
|
|
static int set_fd = -1;
|
|
static int set_count = -1;
|
|
|
|
PROCESS_BEGIN();
|
|
|
|
/* Note: 'cp', 'rb', and 'mt' commands are intercepted */
|
|
PROCESS_PAUSE();
|
|
uart1_set_input(serial_input_byte_intercept);
|
|
|
|
/* Format Coffee? */
|
|
PRINTF("Formatting Coffee\n");
|
|
cfs_coffee_format();
|
|
PRINTF("Formatting Coffee... done!\n");
|
|
|
|
while(1) {
|
|
PROCESS_WAIT_EVENT_UNTIL(ev == serial_line_event_message && data != NULL);
|
|
|
|
if(strcmp("set", data) == 0) {
|
|
/* TODO Handle set command */
|
|
/* Open file */
|
|
cfs_remove("cp");
|
|
cfs_coffee_reserve("cp", checkpoint_arch_size());
|
|
set_fd = cfs_open("cp", CFS_WRITE);
|
|
set_count = 0;
|
|
if(set_fd < 0) {
|
|
printf("SET:FSBUSY\n");
|
|
} else {
|
|
printf("SET:LINE\n");
|
|
}
|
|
} else if(set_fd >= 0 && strcmp("set:done", data) == 0) {
|
|
cfs_close(set_fd);
|
|
set_fd = -1;
|
|
if(set_count == 9862) {
|
|
printf("SET:DONE\n");
|
|
} else {
|
|
printf("SET:WRONGSIZE\n");
|
|
}
|
|
} else if(set_fd >= 0) {
|
|
/* We are ready for another line */
|
|
printf("SET:LINE\n");
|
|
/* Set command: parse hex data */
|
|
int len = strlen((char*)data);
|
|
if(len > 16 || (len%2)!=0) {
|
|
printf("WARN: bad set data: %s\n", (char*)data);
|
|
} else {
|
|
int i;
|
|
for (i=0; i < len; i+=2) {
|
|
uint8_t b =
|
|
(hex_decode_char(((char*)data)[i]) << 4) +
|
|
(hex_decode_char(((char*)data)[i+1]));
|
|
|
|
PRINTF("Parsing set command: writing to CFS: %02x\n", b);
|
|
write_byte(set_fd, b); /* TODO Check return value */
|
|
set_count++;
|
|
}
|
|
}
|
|
} else if(strcmp("", data) == 0 ||
|
|
strcmp("cp", data) == 0 ||
|
|
strcmp("rb", data) == 0 ||
|
|
strcmp("mt", data) == 0) {
|
|
/* ignore commands: handled by interrupt */
|
|
} else if(strcmp("ping", data) == 0) {
|
|
nr_pongs++;
|
|
printf("pong %u\n", nr_pongs);
|
|
} else if(strcmp("get", data) == 0) {
|
|
handle_get_command();
|
|
} else {
|
|
printf("WARN: Unknown command: '%s'\n", (char*)data);
|
|
}
|
|
}
|
|
|
|
PROCESS_END();
|
|
}
|
|
#endif /* WITH_SERIAL_COMMANDS */
|
|
/*---------------------------------------------------------------------------*/
|
|
#if CHECKPOINT_ROLLBACK_BUTTON
|
|
PROCESS_THREAD(checkpoint_button_process, ev, data)
|
|
{
|
|
PROCESS_BEGIN();
|
|
|
|
button_sensor.configure(SENSORS_ACTIVE, 1);
|
|
|
|
while(1) {
|
|
PROCESS_WAIT_EVENT();
|
|
|
|
if(ev == sensors_event && data == &button_sensor) {
|
|
int fd = 0;
|
|
|
|
/* Rollback from Coffee file "cp_wdt" */
|
|
fd = cfs_open("cp_wdt", CFS_READ);
|
|
if(fd >= 0) {
|
|
checkpoint_rollback(fd);
|
|
cfs_close(fd);
|
|
}
|
|
}
|
|
}
|
|
|
|
PROCESS_END();
|
|
}
|
|
#endif /* CHECKPOINT_ROLLBACK_BUTTON */
|