FlapJackApps/libdivecomputer
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Use symbolic constants for the header offsets

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This commit is contained in:
Jef Driesen 2022-11-03 21:37:09 +01:00
parent 34bc6b1613
commit c578e0a158
1 changed files with 20 additions and 10 deletions
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30
src/hw_ostc3.c
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@ -89,6 +89,16 @@
#define NODELAY 0
#define TIMEOUT 400
#define HDR_COMPACT_LENGTH 0 // 3 bytes
#define HDR_COMPACT_SUMMARY 3 // 10 bytes
#define HDR_COMPACT_NUMBER 13 // 2 bytes
#define HDR_FULL_LENGTH 9 // 3 bytes
#define HDR_FULL_SUMMARY 12 // 10 bytes
#define HDR_FULL_NUMBER 80 // 2 bytes
#define HDR_FULL_FIRMWARE 48 // 2 bytes
typedef enum hw_ostc3_state_t {
OPEN,
DOWNLOAD,
@ -155,16 +165,16 @@ static const dc_device_vtable_t hw_ostc3_device_vtable = {
static const hw_ostc3_logbook_t hw_ostc3_logbook_compact = {
RB_LOGBOOK_SIZE_COMPACT, /* size */
0, /* profile */
3, /* fingerprint */
13, /* number */
HDR_COMPACT_LENGTH, /* profile */
HDR_COMPACT_SUMMARY, /* fingerprint */
HDR_COMPACT_NUMBER, /* number */
};
static const hw_ostc3_logbook_t hw_ostc3_logbook_full = {
RB_LOGBOOK_SIZE_FULL, /* size */
9, /* profile */
12, /* fingerprint */
80, /* number */
HDR_FULL_LENGTH, /* profile */
HDR_FULL_SUMMARY, /* fingerprint */
HDR_FULL_NUMBER, /* number */
};
@ -769,7 +779,7 @@ hw_ostc3_device_foreach (dc_device_t *abstract, dc_dive_callback_t callback, voi
unsigned int length = RB_LOGBOOK_SIZE_FULL + array_uint24_le (header + offset + logbook->profile) - 3;
if (!compact) {
// Workaround for a bug in older firmware versions.
unsigned int firmware = array_uint16_be (header + offset + 0x30);
unsigned int firmware = array_uint16_be (header + offset + HDR_FULL_FIRMWARE);
if (firmware < OSTC3FW(0,93))
length -= 3;
}
@ -817,7 +827,7 @@ hw_ostc3_device_foreach (dc_device_t *abstract, dc_dive_callback_t callback, voi
unsigned int length = RB_LOGBOOK_SIZE_FULL + array_uint24_le (header + offset + logbook->profile) - 3;
if (!compact) {
// Workaround for a bug in older firmware versions.
unsigned int firmware = array_uint16_be (header + offset + 0x30);
unsigned int firmware = array_uint16_be (header + offset + HDR_FULL_FIRMWARE);
if (firmware < OSTC3FW(0,93))
length -= 3;
}
@ -853,7 +863,7 @@ hw_ostc3_device_foreach (dc_device_t *abstract, dc_dive_callback_t callback, voi
// A profile containing only the 2 byte end-of-profile
// marker is considered a valid empty profile.
} else if (length < RB_LOGBOOK_SIZE_FULL + 5 + 2 ||
array_uint24_le (profile + RB_LOGBOOK_SIZE_FULL) + delta != array_uint24_le (profile + 9)) {
array_uint24_le (profile + RB_LOGBOOK_SIZE_FULL) + delta != array_uint24_le (profile + HDR_FULL_LENGTH)) {
// If there is more data available, then there should be a
// valid profile header containing a length matching the
// length in the dive header.
@ -861,7 +871,7 @@ hw_ostc3_device_foreach (dc_device_t *abstract, dc_dive_callback_t callback, voi
length = RB_LOGBOOK_SIZE_FULL;
}
if (callback && !callback (profile, length, profile + 12, sizeof (device->fingerprint), userdata))
if (callback && !callback (profile, length, profile + HDR_FULL_SUMMARY, sizeof (device->fingerprint), userdata))
break;
}