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Shearwater: detect which logbook format is support

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RDBI response tells us which format the dive computer supports.

Shearwater recommends to use the 'Petrel Native Format' for all dive computers
which support it, even those pre-Teric models which (depending on firmware)
might support both PNF and the older 'Predator-Like Format'.

They also recommend to ignore the 0x90...... format which is very similar to
PNF but without the final record and to use the older Predator Like Format in
that case.

Which format we use is determined by the base address used to download the
logbook entries.

Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
This commit is contained in:
Dirk Hohndel 2018-09-07 16:15:21 -07:00
parent 12b90c693a
commit f80024ed59
2 changed files with 32 additions and 0 deletions
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1
src/shearwater_common.h
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@ -32,6 +32,7 @@ extern "C" {
#define ID_SERIAL 0x8010
#define ID_FIRMWARE 0x8011
#define ID_RDBI 0x8021
#define ID_HARDWARE 0x8050
#define PREDATOR 2

31
src/shearwater_petrel.c
View File

@ -255,6 +255,37 @@ shearwater_petrel_device_foreach (dc_device_t *abstract, dc_dive_callback_t call
devinfo.serial = array_uint32_be (serial);
device_event_emit (abstract, DC_EVENT_DEVINFO, &devinfo);
// Read the logbook type
rc = shearwater_common_identifier (&device->base, buffer, ID_RDBI);
if (rc != DC_STATUS_SUCCESS) {
ERROR (abstract->context, "Failed to read the logbook type.");
dc_buffer_free (buffer);
dc_buffer_free (manifests);
return rc;
}
unsigned int base_addr = array_uint_be (dc_buffer_get_data (buffer), dc_buffer_get_size (buffer));
base_addr &= 0xFF000000u;
switch (base_addr) {
case 0xDD000000: // Predator or Predator-Like Format
// on a Predator, use the old format, otherwise use the Predator-Like Format (what we called Petrel so far)
if (model != PREDATOR)
base_addr = 0xC0000000;
break;
case 0x90000000: // some firmware versions supported an earlier version of PNF without final record
// use the Predator-Like Format instead
base_addr = 0xC0000000;
break;
case 0x80000000: // new Petrel Native Format with final record
// that's the correct address
break;
default: // unknown format
ERROR (abstract->context, "Unknown logbook format %08x", base_addr);
dc_buffer_free (buffer);
dc_buffer_free (manifests);
return DC_STATUS_UNSUPPORTED;
}
// Read the manifest pages
while (1) {
// Update the progress state.
// Assume the worst case scenario of a full manifest, and adjust the