Added the initial implementation for the Suunto D6 and D9.
This commit is contained in:
Jef Driesen
parent
898b1479bc
commit
4be1c33ca3
1
suunto.h
1
suunto.h
@ -10,5 +10,6 @@
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#include "suunto_vyper.h"
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#include "suunto_vyper2.h"
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#include "suunto_d9.h"
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#endif /* SUUNTO_H */
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327
suunto_d9.c
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327
suunto_d9.c
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@ -0,0 +1,327 @@
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#include <string.h> // memcmp, memcpy
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#include <stdlib.h> // malloc, free
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#include <assert.h> // assert
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#include "suunto.h"
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#include "serial.h"
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#include "utils.h"
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#define MIN(a,b) (((a) < (b)) ? (a) : (b))
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#define MAX(a,b) (((a) > (b)) ? (a) : (b))
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#define WARNING(expr) \
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{ \
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message ("%s:%d: %s\n", __FILE__, __LINE__, expr); \
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}
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#define EXITCODE(rc, n) \
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( \
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rc == -1 ? \
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SUUNTO_ERROR_IO : \
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(rc != n ? SUUNTO_ERROR_TIMEOUT : SUUNTO_ERROR_PROTOCOL) \
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)
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struct d9 {
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struct serial *port;
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};
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int
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suunto_d9_open (d9 **out, const char* name)
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{
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if (out == NULL)
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return SUUNTO_ERROR;
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// Allocate memory.
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struct d9 *device = malloc (sizeof (struct d9));
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if (device == NULL) {
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WARNING ("Failed to allocate memory.");
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return SUUNTO_ERROR_MEMORY;
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}
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// Set the default values.
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device->port = NULL;
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// Open the device.
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int rc = serial_open (&device->port, name);
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if (rc == -1) {
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WARNING ("Failed to open the serial port.");
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free (device);
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return SUUNTO_ERROR_IO;
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}
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// Set the serial communication protocol (9600 8N1).
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rc = serial_configure (device->port, 9600, 8, SERIAL_PARITY_NONE, 1, SERIAL_FLOWCONTROL_NONE);
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if (rc == -1) {
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WARNING ("Failed to set the terminal attributes.");
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serial_close (device->port);
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free (device);
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return SUUNTO_ERROR_IO;
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}
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// Set the timeout for receiving data (3000 ms).
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if (serial_set_timeout (device->port, 3000) == -1) {
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WARNING ("Failed to set the timeout.");
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serial_close (device->port);
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free (device);
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return SUUNTO_ERROR_IO;
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}
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// Set the DTR line (power supply for the interface).
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if (serial_set_dtr (device->port, 1) == -1) {
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WARNING ("Failed to set the DTR line.");
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serial_close (device->port);
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free (device);
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return SUUNTO_ERROR_IO;
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}
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// Give the interface 100 ms to settle and draw power up.
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serial_sleep (100);
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// Make sure everything is in a sane state.
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serial_flush (device->port, SERIAL_QUEUE_BOTH);
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*out = device;
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return SUUNTO_SUCCESS;
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}
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int
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suunto_d9_close (d9 *device)
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{
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if (device == NULL)
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return SUUNTO_SUCCESS;
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// Close the device.
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if (serial_close (device->port) == -1) {
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free (device);
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return SUUNTO_ERROR_IO;
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}
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// Free memory.
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free (device);
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return SUUNTO_SUCCESS;
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}
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static unsigned char
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suunto_d9_checksum (const unsigned char data[], unsigned int size, unsigned char init)
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{
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unsigned char crc = init;
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for (unsigned int i = 0; i < size; ++i)
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crc ^= data[i];
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return crc;
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}
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static int
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suunto_d9_send (d9 *device, const unsigned char command[], unsigned int csize)
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{
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// Clear RTS to send the command.
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serial_set_rts (device->port, 0);
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// Send the command to the dive computer and
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// wait until all data has been transmitted.
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serial_write (device->port, command, csize);
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serial_drain (device->port);
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// Receive the echo.
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unsigned char echo[128] = {0};
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assert (sizeof (echo) >= csize);
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int rc = serial_read (device->port, echo, csize);
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if (rc != csize || memcmp (command, echo, csize) != 0) {
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WARNING ("Unexpected echo.");
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return EXITCODE (rc, csize);
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}
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// Set RTS to receive the reply.
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serial_set_rts (device->port, 1);
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return SUUNTO_SUCCESS;
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}
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static int
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suunto_d9_transfer (d9 *device, const unsigned char command[], unsigned int csize, unsigned char header[], unsigned int hsize, unsigned char data[], unsigned int size)
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{
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// Send the command to the dive computer.
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int rc = suunto_d9_send (device, command, csize);
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if (rc != SUUNTO_SUCCESS) {
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WARNING ("Failed to send the command.");
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return rc;
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}
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// Initial checksum value.
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unsigned char ccrc = 0x00;
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// Receive the header of the package.
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rc = serial_read (device->port, header, hsize);
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header[2] -= size;
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if (rc != hsize || memcmp (command, header, hsize) != 0) {
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WARNING ("Unexpected answer start byte(s).");
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if (rc == 0) {
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WARNING ("Interface present, but the DC does not answer. Check the connection.");
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}
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return EXITCODE (rc, hsize);
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}
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header[2] += size;
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// Update the checksum.
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ccrc = suunto_d9_checksum (header, hsize, ccrc);
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if (data) {
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// Receive the contents of the package.
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rc = serial_read (device->port, data, size);
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if (rc != size) {
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WARNING ("Unexpected EOF in answer.");
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return EXITCODE (rc, size);
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}
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// Update the checksum.
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ccrc = suunto_d9_checksum (data, size, ccrc);
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}
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// Receive (and verify) the checksum of the package.
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unsigned char crc = 0x00;
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rc = serial_read (device->port, &crc, 1);
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if (rc != 1 || ccrc != crc) {
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WARNING ("Unexpected answer CRC.");
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return EXITCODE (rc, 1);
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}
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return SUUNTO_SUCCESS;
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}
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int
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suunto_d9_read_version (d9 *device, unsigned char data[], unsigned int size)
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{
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if (device == NULL)
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return SUUNTO_ERROR;
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if (size < 4)
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return SUUNTO_ERROR_MEMORY;
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unsigned char header[3] = {0};
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unsigned char command[4] = {0x0F, 0x00, 0x00, 0};
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command[3] = suunto_d9_checksum (command, 3, 0x00);
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int rc = suunto_d9_transfer (device, command, 4, header, 3, data, 4);
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if (rc != SUUNTO_SUCCESS)
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return rc;
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#ifndef NDEBUG
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message ("D9ReadVersion()=\"%02x %02x %02x %02x\"\n", data[0], data[1], data[2], data[3]);
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#endif
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return SUUNTO_SUCCESS;
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}
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int
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suunto_d9_reset_maxdepth (d9 *device)
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{
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if (device == NULL)
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return SUUNTO_ERROR;
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unsigned char header[3] = {0};
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unsigned char command[4] = {0x20, 0x00, 0x00, 0};
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command[3] = suunto_d9_checksum (command, 3, 0x00);
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int rc = suunto_d9_transfer (device, command, 4, header, 3, NULL, 0);
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if (rc != SUUNTO_SUCCESS)
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return rc;
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#ifndef NDEBUG
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message ("D9ResetMaxDepth()\n");
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#endif
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return SUUNTO_SUCCESS;
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}
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int
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suunto_d9_read_memory (d9 *device, unsigned int address, unsigned char data[], unsigned int size)
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{
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if (device == NULL)
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return SUUNTO_ERROR;
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// The data transmission is split in packages
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// of maximum $SUUNTO_D9_PACKET_SIZE bytes.
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unsigned int nbytes = 0;
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while (nbytes < size) {
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// Calculate the package size.
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unsigned int len = MIN (size - nbytes, SUUNTO_D9_PACKET_SIZE);
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// Read the package.
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unsigned char header[6] = {0};
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unsigned char command[7] = {0x05, 0x00, 0x03,
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(address >> 8) & 0xFF, // high
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(address ) & 0xFF, // low
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len, // count
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0}; // CRC
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command[6] = suunto_d9_checksum (command, 6, 0x00);
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int rc = suunto_d9_transfer (device, command, 7, header, 6, data, len);
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if (rc != SUUNTO_SUCCESS)
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return rc;
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#ifndef NDEBUG
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message ("D9Read(0x%04x,%d)=\"", address, len);
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for (unsigned int i = 0; i < len; ++i) {
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message("%02x", data[i]);
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}
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message("\"\n");
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#endif
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nbytes += len;
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address += len;
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data += len;
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}
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return SUUNTO_SUCCESS;
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}
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int
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suunto_d9_write_memory (d9 *device, unsigned int address, const unsigned char data[], unsigned int size)
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{
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if (device == NULL)
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return SUUNTO_ERROR;
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// The data transmission is split in packages
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// of maximum $SUUNTO_D9_PACKET_SIZE bytes.
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unsigned int nbytes = 0;
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while (nbytes < size) {
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// Calculate the package size.
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unsigned int len = MIN (size - nbytes, SUUNTO_D9_PACKET_SIZE);
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// Write the package.
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unsigned char header[6] = {0};
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unsigned char command[SUUNTO_D9_PACKET_SIZE + 7] = {0x06, 0x00, 0x03,
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(address >> 8) & 0xFF, // high
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(address ) & 0xFF, // low
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len, // count
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0}; // data + CRC
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memcpy (command + 6, data, len);
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command[len + 6] = suunto_d9_checksum (command, len + 6, 0x00);
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int rc = suunto_d9_transfer (device, command, len + 7, header, 6, NULL, 0);
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if (rc != SUUNTO_SUCCESS)
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return rc;
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#ifndef NDEBUG
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message ("D9Write(0x%04x,%d,\"", address, len);
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for (unsigned int i = 0; i < len; ++i) {
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message ("%02x", data[i]);
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}
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message ("\");\n");
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#endif
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nbytes += len;
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address += len;
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data += len;
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}
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return SUUNTO_SUCCESS;
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}
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28
suunto_d9.h
Normal file
28
suunto_d9.h
Normal file
@ -0,0 +1,28 @@
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#ifndef SUUNTO_D9_H
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#define SUUNTO_D9_H
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#ifdef __cplusplus
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extern "C" {
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#endif /* __cplusplus */
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typedef struct d9 d9;
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#define SUUNTO_D9_MEMORY_SIZE 0x8000
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#define SUUNTO_D9_PACKET_SIZE 0x78
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int suunto_d9_open (d9 **device, const char* name);
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int suunto_d9_close (d9 *device);
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int suunto_d9_read_version (d9 *device, unsigned char data[], unsigned int size);
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int suunto_d9_reset_maxdepth (d9 *device);
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int suunto_d9_read_memory (d9 *device, unsigned int address, unsigned char data[], unsigned int size);
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int suunto_d9_write_memory (d9 *device, unsigned int address, const unsigned char data[], unsigned int size);
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#ifdef __cplusplus
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}
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#endif /* __cplusplus */
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#endif /* SUUNTO_D9_H */
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323
suunto_d9_test.c
Normal file
323
suunto_d9_test.c
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@ -0,0 +1,323 @@
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#include <stdio.h> // fopen, fwrite, fclose
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#include <assert.h> // assert
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#include <string.h> // memcpy, memmove
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#include "suunto.h"
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#include "utils.h"
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#define WARNING(expr) \
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{ \
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message ("%s:%d: %s\n", __FILE__, __LINE__, expr); \
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}
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#define DISTANCE(a,b) distance (a, b, SUUNTO_D9_MEMORY_SIZE - 0x019A)
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unsigned int
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distance (unsigned int a, unsigned int b, unsigned int size)
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{
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if (a <= b) {
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return (b - a) % size;
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} else {
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return size - (a - b) % size;
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}
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}
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int test_dump_sdm (const char* name, const char* filename)
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{
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unsigned char data[SUUNTO_D9_MEMORY_SIZE] = {0};
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d9 *device = NULL;
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message ("suunto_d9_open\n");
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int rc = suunto_d9_open (&device, name);
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if (rc != SUUNTO_SUCCESS) {
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WARNING ("Error opening serial port.");
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return rc;
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}
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message ("suunto_d9_read_version\n");
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unsigned char version[4] = {0};
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rc = suunto_d9_read_version (device, version, sizeof (version));
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if (rc != SUUNTO_SUCCESS) {
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WARNING ("Cannot identify computer.");
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suunto_d9_close (device);
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return rc;
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}
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message ("suunto_d9_read_memory\n");
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rc = suunto_d9_read_memory (device, 0x00, data + 0x00, SUUNTO_D9_PACKET_SIZE);
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if (rc != SUUNTO_SUCCESS) {
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WARNING ("Cannot read memory.");
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suunto_d9_close (device);
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return rc;
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}
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rc = suunto_d9_read_memory (device, 0x168, data + 0x168, SUUNTO_D9_PACKET_SIZE);
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if (rc != SUUNTO_SUCCESS) {
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WARNING ("Cannot read memory.");
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suunto_d9_close (device);
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return rc;
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}
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rc = suunto_d9_read_memory (device, 0xF0, data + 0xF0, SUUNTO_D9_PACKET_SIZE);
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if (rc != SUUNTO_SUCCESS) {
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WARNING ("Cannot read memory.");
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suunto_d9_close (device);
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return rc;
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}
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message ("suunto_d9_read_dive\n");
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unsigned int last = data[0x0190] + (data[0x0191] << 8);
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unsigned int count = data[0x0192] + (data[0x0193] << 8);
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unsigned int end = data[0x0194] + (data[0x0195] << 8);
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unsigned int begin = data[0x0196] + (data[0x0197] << 8);
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message ("Pointers: begin=%04x, last=%04x, end=%04x, count=%i\n", begin, last, end, count);
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unsigned int index = 0x019A;
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// Calculate the total amount of bytes.
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unsigned int remaining = DISTANCE (begin, end);
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// To reduce the number of read operations, we always try to read
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// packages with the largest possible size. As a consequence, the
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// last package of a dive can contain data from more than one dive.
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// Therefore, the remaining data of this package (and its size)
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// needs to be preserved for the next dive.
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// The package buffer also needs some extra space to store the
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// pointer bytes (see later on for the reason).
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unsigned int available = 0;
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unsigned char package[SUUNTO_D9_PACKET_SIZE + 3] = {0};
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// The ring buffer is traversed backwards to retrieve the most recent
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// dives first. This allows you to download only the new dives. During
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// the traversal, the current pointer does always point to the end of
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// the dive data and we move to the "next" dive by means of the previous
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// pointer.
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unsigned int ndives = 0;
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unsigned int current = end;
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unsigned int previous = last;
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while (current != begin) {
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// Calculate the size of the current dive.
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unsigned int size = DISTANCE (previous, current);
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message ("Pointers: dive=%u, current=%04x, previous=%04x, size=%u, remaining=%u\n", ndives + 1, current, previous, size, remaining);
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assert (size >= 4);
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// Check if the output buffer is large enough to store the entire
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// dive. The output buffer does not need space for the previous and
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// next pointers (4 bytes).
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unsigned char *pointer = data + index + size - 4;
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if (sizeof (data) - index < size - 4) {
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WARNING ("Insufficient buffer space available.");
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return SUUNTO_ERROR_MEMORY;
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}
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// If there is already some data available from downloading
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// the previous dive, it is processed here.
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if (available) {
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// Calculate the offset to the package data.
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unsigned int offset = 0;
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if (available > size - 4)
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offset = available - (size - 4);
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// Prepend the package data to the output buffer.
|
||||
pointer -= available - offset;
|
||||
memcpy (pointer, package + offset, available - offset);
|
||||
}
|
||||
|
||||
unsigned int nbytes = available;
|
||||
unsigned int address = current - available;
|
||||
while (nbytes < size) {
|
||||
// Calculate the package size. Try with the largest possible
|
||||
// size first, and adjust when the end of the ringbuffer or
|
||||
// the end of the profile data is reached.
|
||||
unsigned int len = SUUNTO_D9_PACKET_SIZE;
|
||||
if (0x019A + len > address)
|
||||
len = address - 0x019A; // End of ringbuffer.
|
||||
if (nbytes + len > remaining)
|
||||
len = remaining - nbytes; // End of profile.
|
||||
/*if (nbytes + len > size)
|
||||
len = size - nbytes;*/ // End of dive (for testing only).
|
||||
|
||||
// Calculate the offset to the package data, skipping the
|
||||
// previous and next pointers (4 bytes) and also the data
|
||||
// from the next dive (if present). Thus, the offset is only
|
||||
// non-zero for packages at the end of the dive.
|
||||
unsigned int offset = 0;
|
||||
if (nbytes + len > size - 4)
|
||||
offset = nbytes + len - (size - 4);
|
||||
|
||||
message ("Pointers: address=%04x, len=%u, offset=%u\n", address - len, len, offset);
|
||||
|
||||
// The previous and next pointers can be split over multiple
|
||||
// packages. If that is the case, we move those byte(s) from
|
||||
// the start of the previous package to the end of the current
|
||||
// package. With this approach, the pointers are preserved when
|
||||
// reading the current package (in the next step) and they are
|
||||
// again in a continuous memory area.
|
||||
if (offset > len) {
|
||||
message ("Pointers: dst=%u, src=%u, len=%u\n", len, 0, offset - len);
|
||||
memmove (package + len, package, offset - len);
|
||||
}
|
||||
|
||||
// Read the package.
|
||||
rc = suunto_d9_read_memory (device, address - len, package, len);
|
||||
if (rc != SUUNTO_SUCCESS) {
|
||||
WARNING ("Cannot read memory.");
|
||||
suunto_d9_close (device);
|
||||
return rc;
|
||||
}
|
||||
|
||||
// Prepend the package data to the output buffer.
|
||||
if (offset < len) {
|
||||
pointer -= len - offset;
|
||||
memcpy (pointer, package + offset, len - offset);
|
||||
}
|
||||
|
||||
// Next package.
|
||||
nbytes += len;
|
||||
address -= len;
|
||||
if (address <= 0x019A)
|
||||
address = SUUNTO_D9_MEMORY_SIZE;
|
||||
}
|
||||
|
||||
// The last package of the current dive contains the previous and
|
||||
// next pointers (in a continuous memory area). It can also contain
|
||||
// a number of bytes from the next dive. The offset to the pointers
|
||||
// is equal to the number of remaining (or "available") bytes.
|
||||
|
||||
available = nbytes - size;
|
||||
message ("Pointers: nbytes=%u, available=%u\n", nbytes, available);
|
||||
|
||||
unsigned int oprevious = package[available + 0x00] + (package[available + 0x01] << 8);
|
||||
unsigned int onext = package[available + 0x02] + (package[available + 0x03] << 8);
|
||||
message ("Pointers: previous=%04x, next=%04x\n", oprevious, onext);
|
||||
assert (current == onext);
|
||||
|
||||
// Next dive.
|
||||
current = previous;
|
||||
previous = oprevious;
|
||||
remaining -= size;
|
||||
ndives++;
|
||||
|
||||
#ifndef NDEBUG
|
||||
message ("D9Profile()=\"");
|
||||
for (unsigned int i = 0; i < size - 4; ++i) {
|
||||
message ("%02x", data[i + index]);
|
||||
}
|
||||
message ("\"\n");
|
||||
#endif
|
||||
|
||||
index += size - 4;
|
||||
}
|
||||
assert (remaining == 0);
|
||||
assert (available == 0);
|
||||
|
||||
message ("Dumping data\n");
|
||||
FILE *fp = fopen (filename, "wb");
|
||||
if (fp != NULL) {
|
||||
fwrite (data, sizeof (unsigned char), sizeof (data), fp);
|
||||
fclose (fp);
|
||||
}
|
||||
|
||||
message ("suunto_d9_close\n");
|
||||
rc = suunto_d9_close (device);
|
||||
if (rc != SUUNTO_SUCCESS) {
|
||||
WARNING ("Cannot close device.");
|
||||
return rc;
|
||||
}
|
||||
|
||||
return SUUNTO_SUCCESS;
|
||||
}
|
||||
|
||||
int test_dump_memory (const char* name, const char* filename)
|
||||
{
|
||||
unsigned char data[SUUNTO_D9_MEMORY_SIZE] = {0};
|
||||
d9 *device = NULL;
|
||||
|
||||
message ("suunto_d9_open\n");
|
||||
int rc = suunto_d9_open (&device, name);
|
||||
if (rc != SUUNTO_SUCCESS) {
|
||||
WARNING ("Error opening serial port.");
|
||||
return rc;
|
||||
}
|
||||
|
||||
message ("suunto_d9_read_version\n");
|
||||
unsigned char version[4] = {0};
|
||||
rc = suunto_d9_read_version (device, version, sizeof (version));
|
||||
if (rc != SUUNTO_SUCCESS) {
|
||||
WARNING ("Cannot identify computer.");
|
||||
suunto_d9_close (device);
|
||||
return rc;
|
||||
}
|
||||
|
||||
message ("suunto_d9_read_memory\n");
|
||||
rc = suunto_d9_read_memory (device, 0x00, data, sizeof (data));
|
||||
if (rc != SUUNTO_SUCCESS) {
|
||||
WARNING ("Cannot read memory.");
|
||||
suunto_d9_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_d9_close\n");
|
||||
rc = suunto_d9_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 ("D9.LOG");
|
||||
|
||||
#ifdef _WIN32
|
||||
const char* name = "COM1";
|
||||
#else
|
||||
const char* name = "/dev/ttyS0";
|
||||
#endif
|
||||
|
||||
if (argc > 1) {
|
||||
name = argv[1];
|
||||
}
|
||||
|
||||
int a = test_dump_memory (name, "D9.DMP");
|
||||
int b = test_dump_sdm (name, "D9.SDM");
|
||||
|
||||
message ("\nSUMMARY\n");
|
||||
message ("-------\n");
|
||||
message ("test_dump_memory: %s\n", errmsg (a));
|
||||
message ("test_dump_sdm: %s\n", errmsg (b));
|
||||
|
||||
message_set_logfile (NULL);
|
||||
|
||||
return 0;
|
||||
}
|
||||
Loading…
x
Reference in New Issue
Block a user