Added the initial implementation for the Suunto Eon.

This commit is contained in:
Jef Driesen 2008-05-11 15:05:21 +00:00
parent 98b5d06be6
commit 311170f2b8
4 changed files with 306 additions and 0 deletions

View File

@ -10,6 +10,7 @@
typedef void (*dive_callback_t) (const unsigned char *data, unsigned int size, void *userdata);
#include "suunto_eon.h"
#include "suunto_vyper.h"
#include "suunto_vyper2.h"
#include "suunto_d9.h"

186
suunto_eon.c Normal file
View File

@ -0,0 +1,186 @@
#include <string.h> // memcmp, memcpy
#include <stdlib.h> // malloc, free
#include "suunto.h"
#include "serial.h"
#include "utils.h"
#define WARNING(expr) \
{ \
message ("%s:%d: %s\n", __FILE__, __LINE__, expr); \
}
#define EXITCODE(rc) \
( \
rc == -1 ? SUUNTO_ERROR_IO : SUUNTO_ERROR_TIMEOUT \
)
struct eon {
struct serial *port;
};
int
suunto_eon_open (eon **out, const char* name)
{
if (out == NULL)
return SUUNTO_ERROR;
// Allocate memory.
struct eon *device = malloc (sizeof (struct eon));
if (device == NULL) {
WARNING ("Failed to allocate memory.");
return SUUNTO_ERROR_MEMORY;
}
// Set the default values.
device->port = NULL;
// Open the device.
int rc = serial_open (&device->port, name);
if (rc == -1) {
WARNING ("Failed to open the serial port.");
free (device);
return SUUNTO_ERROR_IO;
}
// Set the serial communication protocol (1200 8N2).
rc = serial_configure (device->port, 1200, 8, SERIAL_PARITY_NONE, 2, SERIAL_FLOWCONTROL_NONE);
if (rc == -1) {
WARNING ("Failed to set the terminal attributes.");
serial_close (device->port);
free (device);
return SUUNTO_ERROR_IO;
}
// Set the timeout for receiving data (1000ms).
if (serial_set_timeout (device->port, -1) == -1) {
WARNING ("Failed to set the timeout.");
serial_close (device->port);
free (device);
return SUUNTO_ERROR_IO;
}
// Clear the RTS line.
if (serial_set_rts (device->port, 0)) {
WARNING ("Failed to set the DTR/RTS line.");
serial_close (device->port);
free (device);
return SUUNTO_ERROR_IO;
}
*out = device;
return SUUNTO_SUCCESS;
}
int
suunto_eon_close (eon *device)
{
if (device == NULL)
return SUUNTO_SUCCESS;
// Close the device.
if (serial_close (device->port) == -1) {
free (device);
return SUUNTO_ERROR_IO;
}
// Free memory.
free (device);
return SUUNTO_SUCCESS;
}
unsigned char
suunto_eon_checksum (unsigned char data[], unsigned int size)
{
unsigned char crc = 0x00;
for (unsigned int i = 0; i < size; ++i)
crc += data[i];
return crc;
}
int
suunto_eon_read (eon *device, unsigned char data[], unsigned int size)
{
if (device == NULL)
return SUUNTO_ERROR;
// Send the command.
unsigned char command[1] = {'P'};
int rc = serial_write (device->port, command, sizeof (command));
if (rc != sizeof (command)) {
WARNING ("Failed to send the command.");
return EXITCODE (rc);
}
// Receive the answer.
unsigned char answer[SUUNTO_EON_MEMORY_SIZE + 1] = {0};
rc = serial_read (device->port, answer, sizeof (answer));
if (rc != sizeof (answer)) {
WARNING ("Failed to receive the answer.");
return EXITCODE (rc);
}
// Verify the checksum of the package.
unsigned char crc = answer[sizeof (answer) - 1];
unsigned char ccrc = suunto_eon_checksum (answer, sizeof (answer) - 1);
if (crc != ccrc) {
WARNING ("Unexpected answer CRC.");
return SUUNTO_ERROR_PROTOCOL;
}
if (size >= SUUNTO_EON_MEMORY_SIZE) {
memcpy (data, answer, SUUNTO_EON_MEMORY_SIZE);
} else {
WARNING ("Insufficient buffer space available.");
return SUUNTO_ERROR_MEMORY;
}
return SUUNTO_SUCCESS;
}
int
suunto_eon_write_name (eon *device, unsigned char data[], unsigned int size)
{
if (device == NULL)
return SUUNTO_ERROR;
if (size > 20)
return SUUNTO_ERROR;
// Send the command.
unsigned char command[21] = {'N'};
memcpy (command + 1, data, size);
int rc = serial_write (device->port, command, sizeof (command));
if (rc != sizeof (command)) {
WARNING ("Failed to send the command.");
return EXITCODE (rc);
}
return SUUNTO_SUCCESS;
}
int
suunto_eon_write_interval (eon *device, unsigned char interval)
{
if (device == NULL)
return SUUNTO_ERROR;
// Send the command.
unsigned char command[2] = {'T', interval};
int rc = serial_write (device->port, command, sizeof (command));
if (rc != sizeof (command)) {
WARNING ("Failed to send the command.");
return EXITCODE (rc);
}
return SUUNTO_SUCCESS;
}

25
suunto_eon.h Normal file
View File

@ -0,0 +1,25 @@
#ifndef SUUNTO_EON_H
#define SUUNTO_EON_H
#ifdef __cplusplus
extern "C" {
#endif /* __cplusplus */
typedef struct eon eon;
#define SUUNTO_EON_MEMORY_SIZE 0x900
int suunto_eon_open (eon **device, const char* name);
int suunto_eon_close (eon *device);
int suunto_eon_read (eon *device, unsigned char data[], unsigned int size);
int suunto_eon_write_name (eon *device, unsigned char data[], unsigned int size);
int suunto_eon_write_interval (eon *device, unsigned char interval);
#ifdef __cplusplus
}
#endif /* __cplusplus */
#endif /* SUUNTO_EON_H */

94
suunto_eon_test.c Normal file
View File

@ -0,0 +1,94 @@
#include <stdio.h> // fopen, fwrite, fclose
#include "suunto.h"
#include "utils.h"
#define WARNING(expr) \
{ \
message ("%s:%d: %s\n", __FILE__, __LINE__, expr); \
}
int test_dump_memory (const char* name, const char* filename)
{
eon *device = NULL;
unsigned char data[SUUNTO_EON_MEMORY_SIZE] = {0};
message ("suunto_eon_open\n");
int rc = suunto_eon_open (&device, name);
if (rc != SUUNTO_SUCCESS) {
WARNING ("Error opening serial port.");
return rc;
}
message ("suunto_eon_read\n");
rc = suunto_eon_read (device, data, sizeof (data));
if (rc != SUUNTO_SUCCESS) {
WARNING ("Cannot read memory.");
suunto_eon_close (device);
return rc;
}
message ("Dumping data\n");
FILE* fp = fopen (filename, "wb");
if (fp != NULL) {
fwrite (data, sizeof (unsigned char), sizeof (data), fp);
fclose (fp);
}
message ("suunto_eon_close\n");
rc = suunto_eon_close (device);
if (rc != SUUNTO_SUCCESS) {
WARNING ("Cannot close device.");
return rc;
}
return SUUNTO_SUCCESS;
}
const char* errmsg (int rc)
{
switch (rc) {
case SUUNTO_SUCCESS:
return "Success";
case SUUNTO_ERROR:
return "Generic error";
case SUUNTO_ERROR_IO:
return "Input/output error";
case SUUNTO_ERROR_MEMORY:
return "Memory error";
case SUUNTO_ERROR_PROTOCOL:
return "Protocol error";
case SUUNTO_ERROR_TIMEOUT:
return "Timeout";
default:
return "Unknown error";
}
}
int main(int argc, char *argv[])
{
message_set_logfile ("EON.LOG");
#ifdef _WIN32
const char* name = "COM1";
#else
const char* name = "/dev/ttyS0";
#endif
if (argc > 1) {
name = argv[1];
}
message ("DEVICE=%s\n", name);
int a = test_dump_memory (name, "EON.DMP");
message ("SUMMARY\n");
message ("-------\n");
message ("test_dump_memory: %s\n", errmsg (a));
message_set_logfile (NULL);
return 0;
}