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Add support for the new hardware descriptor.

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The latest firmware v1.75 introduced a new hardware descriptor byte to
identify the different models based on their hardware features. This new
hardware descriptor is now used as the libdivecomputer model number. For
older firmware versions, which do not support the descriptor yet, there
is an automatic fallback to the previous method based on the serial
number.
This commit is contained in:
Jef Driesen 2015-03-03 19:20:36 +01:00
parent bdbe95f221
commit 3b264d9cfd
4 changed files with 53 additions and 7 deletions
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3
include/libdivecomputer/hw_ostc3.h
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@ -40,6 +40,9 @@ hw_ostc3_device_open (dc_device_t **device, dc_context_t *context, const char *n
dc_status_t
hw_ostc3_device_version (dc_device_t *device, unsigned char data[], unsigned int size);
dc_status_t
hw_ostc3_device_hardware (dc_device_t *device, unsigned char data[], unsigned int size);
dc_status_t
hw_ostc3_device_clock (dc_device_t *device, const dc_datetime_t *datetime);

6
src/descriptor.c
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@ -210,9 +210,9 @@ static const dc_descriptor_t g_descriptors[] = {
{"Heinrichs Weikamp", "OSTC 2N", DC_FAMILY_HW_OSTC, 2},
{"Heinrichs Weikamp", "OSTC 2C", DC_FAMILY_HW_OSTC, 3},
{"Heinrichs Weikamp", "Frog", DC_FAMILY_HW_FROG, 0},
{"Heinrichs Weikamp", "OSTC 3", DC_FAMILY_HW_OSTC3, 0},
{"Heinrichs Weikamp", "OSTC cR", DC_FAMILY_HW_OSTC3, 0},
{"Heinrichs Weikamp", "OSTC Sport", DC_FAMILY_HW_OSTC3, 1},
{"Heinrichs Weikamp", "OSTC 3", DC_FAMILY_HW_OSTC3, 0x0A},
{"Heinrichs Weikamp", "OSTC cR", DC_FAMILY_HW_OSTC3, 0x05},
{"Heinrichs Weikamp", "OSTC Sport", DC_FAMILY_HW_OSTC3, 0x12},
/* Cressi Edy */
{"Cressi", "Edy", DC_FAMILY_CRESSI_EDY, 0},
/* Cressi Leonardo */

50
src/hw_ostc3.c
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@ -46,6 +46,7 @@
#define SZ_DISPLAY 16
#define SZ_CUSTOMTEXT 60
#define SZ_VERSION (SZ_CUSTOMTEXT + 4)
#define SZ_HARDWARE 1
#define SZ_MEMORY 0x200000
#define SZ_CONFIG 4
#define SZ_FIRMWARE 0x01E000 // 120KB
@ -66,6 +67,7 @@
#define CUSTOMTEXT 0x63
#define DIVE 0x66
#define IDENTITY 0x69
#define HARDWARE 0x6A
#define DISPLAY 0x6E
#define READ 0x72
#define WRITE 0x77
@ -73,6 +75,10 @@
#define INIT 0xBB
#define EXIT 0xFF
#define OSTC3 0x0A
#define SPORT 0x12
#define CR 0x05
typedef enum hw_ostc3_state_t {
OPEN,
DOWNLOAD,
@ -461,6 +467,30 @@ hw_ostc3_device_version (dc_device_t *abstract, unsigned char data[], unsigned i
}
dc_status_t
hw_ostc3_device_hardware (dc_device_t *abstract, unsigned char data[], unsigned int size)
{
hw_ostc3_device_t *device = (hw_ostc3_device_t *) abstract;
if (!ISINSTANCE (abstract))
return DC_STATUS_INVALIDARGS;
if (size != SZ_HARDWARE)
return DC_STATUS_INVALIDARGS;
dc_status_t rc = hw_ostc3_device_init (device, DOWNLOAD);
if (rc != DC_STATUS_SUCCESS)
return rc;
// Send the command.
rc = hw_ostc3_transfer (device, NULL, HARDWARE, NULL, 0, data, size);
if (rc != DC_STATUS_SUCCESS)
return rc;
return DC_STATUS_SUCCESS;
}
static dc_status_t
hw_ostc3_device_foreach (dc_device_t *abstract, dc_dive_callback_t callback, void *userdata)
{
@ -483,14 +513,26 @@ hw_ostc3_device_foreach (dc_device_t *abstract, dc_dive_callback_t callback, voi
return rc;
}
// Download the hardware descriptor.
unsigned char hardware[SZ_HARDWARE] = {0};
rc = hw_ostc3_device_hardware (abstract, hardware, sizeof (hardware));
if (rc != DC_STATUS_SUCCESS && rc != DC_STATUS_UNSUPPORTED) {
ERROR (abstract->context, "Failed to read the hardware descriptor.");
return rc;
}
// Emit a device info event.
dc_event_devinfo_t devinfo;
devinfo.firmware = array_uint16_be (id + 2);
devinfo.serial = array_uint16_le (id + 0);
if (devinfo.serial > 10000)
devinfo.model = 1; // OSTC Sport
else
devinfo.model = 0; // OSTC3
devinfo.model = hardware[0];
if (devinfo.model == 0) {
// Fallback to the serial number.
if (devinfo.serial > 10000)
devinfo.model = SPORT;
else
devinfo.model = OSTC3;
}
device_event_emit (abstract, DC_EVENT_DEVINFO, &devinfo);
// Allocate memory.

1
src/libdivecomputer.symbols
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@ -155,6 +155,7 @@ hw_frog_device_display
hw_frog_device_customtext
hw_ostc3_device_open
hw_ostc3_device_version
hw_ostc3_device_hardware
hw_ostc3_device_clock
hw_ostc3_device_display
hw_ostc3_device_customtext