FlapJackApps/libdivecomputer
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Merge branch 'g2'

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This commit is contained in:
Jef Driesen 2017-09-28 22:22:16 +02:00
commit efe2edd83c
2 changed files with 19 additions and 15 deletions
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14
src/usbhid.c
View File

@ -45,6 +45,7 @@
#include "usbhid.h"
#include "common-private.h"
#include "context-private.h"
#include "platform.h"
struct dc_usbhid_t {
/* Library context. */
@ -432,15 +433,16 @@ dc_usbhid_write (dc_usbhid_t *usbhid, const void *data, size_t size, size_t *act
nbytes = 0;
goto out;
}
#ifdef _WIN32
if (nbytes > size) {
nbytes = size;
}
#endif
#endif
out:
#ifdef _WIN32
if (nbytes > size) {
WARNING (usbhid->context, "Number of bytes exceeds the buffer size (" DC_PRINTF_SIZE " > " DC_PRINTF_SIZE ")!", nbytes, size);
nbytes = size;
}
#endif
HEXDUMP (usbhid->context, DC_LOGLEVEL_INFO, "Write", (unsigned char *) data, nbytes);
out_invalidargs:

20
src/uwatec_g2.c
View File

@ -32,7 +32,8 @@
#define ISINSTANCE(device) dc_device_isinstance((device), &uwatec_g2_device_vtable)
#define PACKET_SIZE 64
#define RX_PACKET_SIZE 64
#define TX_PACKET_SIZE 32
typedef struct uwatec_g2_device_t {
dc_device_t base;
@ -66,22 +67,22 @@ static dc_status_t
receive_data (uwatec_g2_device_t *device, dc_event_progress_t *progress, unsigned char *data, unsigned int size)
{
while (size) {
unsigned char buf[PACKET_SIZE];
unsigned char buf[RX_PACKET_SIZE];
size_t transferred = 0;
dc_status_t rc = DC_STATUS_SUCCESS;
unsigned int len = 0;
rc = dc_usbhid_read (device->usbhid, buf, PACKET_SIZE, &transferred);
rc = dc_usbhid_read (device->usbhid, buf, sizeof(buf), &transferred);
if (rc != DC_STATUS_SUCCESS) {
ERROR (device->base.context, "read interrupt transfer failed");
return rc;
}
if (transferred != PACKET_SIZE) {
ERROR (device->base.context, "incomplete read interrupt transfer (got " DC_PRINTF_SIZE ", expected %d)", transferred, PACKET_SIZE);
if (transferred != sizeof(buf)) {
ERROR (device->base.context, "incomplete read interrupt transfer (got " DC_PRINTF_SIZE ", expected " DC_PRINTF_SIZE ")", transferred, sizeof(buf));
return DC_STATUS_PROTOCOL;
}
len = buf[0];
if (len >= PACKET_SIZE) {
if (len >= sizeof(buf)) {
ERROR (device->base.context, "read interrupt transfer returns impossible packet size (%d)", len);
return DC_STATUS_PROTOCOL;
}
@ -108,11 +109,11 @@ receive_data (uwatec_g2_device_t *device, dc_event_progress_t *progress, unsigne
static dc_status_t
uwatec_g2_transfer (uwatec_g2_device_t *device, const unsigned char command[], unsigned int csize, unsigned char answer[], unsigned int asize)
{
unsigned char buf[PACKET_SIZE];
unsigned char buf[TX_PACKET_SIZE + 1];
dc_status_t status = DC_STATUS_SUCCESS;
size_t transferred = 0;
if (csize + 2 > PACKET_SIZE) {
if (csize + 2 > sizeof(buf)) {
ERROR (device->base.context, "command too big (%d)", csize);
return DC_STATUS_INVALIDARGS;
}
@ -122,7 +123,8 @@ uwatec_g2_transfer (uwatec_g2_device_t *device, const unsigned char command[], u
buf[0] = 0;
buf[1] = csize;
memcpy(buf + 2, command, csize);
status = dc_usbhid_write (device->usbhid, buf, csize + 2, &transferred);
memset(buf + 2 + csize, 0, sizeof(buf) - (csize + 2));
status = dc_usbhid_write (device->usbhid, buf, sizeof(buf), &transferred);
if (status != DC_STATUS_SUCCESS) {
ERROR (device->base.context, "Failed to send the command.");
return status;