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fx2lafw: Only terminate session after all transfers have been aborted

This commit is contained in:
Joel Holdsworth 2012-03-24 10:04:36 +00:00
parent 24125e0520
commit cb61e9f7c3
2 changed files with 22 additions and 4 deletions
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25
hardware/fx2lafw/fx2lafw.c
View File

@ -574,14 +574,24 @@ static int receive_data(int fd, int revents, void *cb_data)
static void abort_acquisition(struct context *ctx)
{
struct sr_datafeed_packet packet;
ctx->num_samples = -1;
}
void finish_acquisition(struct context *ctx)
{
struct sr_datafeed_packet packet;
int i;
/* Terminate session */
packet.type = SR_DF_END;
sr_session_send(ctx->session_dev_id, &packet);
ctx->num_samples = -1;
/* TODO: Need to cancel and free any queued up transfers. */
/* Remove fds from polling */
const struct libusb_pollfd **const lupfd =
libusb_get_pollfds(usb_context);
for (i = 0; lupfd[i]; i++)
sr_source_remove(lupfd[i]->fd);
free(lupfd); /* NOT g_free()! */
}
static void receive_transfer(struct libusb_transfer *transfer)
@ -601,6 +611,11 @@ static void receive_transfer(struct libusb_transfer *transfer)
if (ctx->num_samples == -1) {
if (transfer)
libusb_free_transfer(transfer);
ctx->submitted_transfers--;
if (ctx->submitted_transfers == 0)
finish_acquisition(ctx);
return;
}
@ -761,6 +776,8 @@ static int hw_dev_acquisition_start(int dev_index, void *cb_data)
g_free(buf);
return SR_ERR;
}
ctx->submitted_transfers++;
size = 4096;
}

1
hardware/fx2lafw/fx2lafw.h
View File

@ -66,6 +66,7 @@ struct context {
uint8_t trigger_buffer[NUM_TRIGGER_STAGES];
int num_samples;
int submitted_transfers;
void *session_dev_id;