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hantek-dso: remove sources from session when done

This commit is contained in:
Bert Vermeulen 2012-08-03 01:05:40 +02:00
parent 26bf9d56c0
commit a3508e33f9
2 changed files with 27 additions and 15 deletions
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39
hardware/hantek-dso/api.c
View File

@ -709,9 +709,7 @@ static void receive_transfer(struct libusb_transfer *transfer)
if (devc->limit_frames && ++devc->num_frames == devc->limit_frames) {
/* Terminate session */
/* TODO: don't leave pending USB transfers hanging */
packet.type = SR_DF_END;
sr_session_send(ctx->cb_data, &packet);
devc->dev_state = STOPPING;
} else {
devc->dev_state = NEW_CAPTURE;
}
@ -721,11 +719,13 @@ static void receive_transfer(struct libusb_transfer *transfer)
static int handle_event(int fd, int revents, void *cb_data)
{
const struct sr_dev_inst *sdi;
struct sr_datafeed_packet packet;
struct timeval tv;
int num_probes;
struct drv_context *drvc;
struct dev_context *devc;
const struct libusb_pollfd **lupfd;
int num_probes, i;
uint32_t trigger_offset;
uint8_t capturestate;
@ -736,11 +736,28 @@ static int handle_event(int fd, int revents, void *cb_data)
drvc = hdi->priv;
sdi = cb_data;
devc = sdi->priv;
if (devc->dev_state == STOPPING) {
/* We've been told to wind up the acquisition. */
sr_dbg("hantek-dso: stopping acquisition");
/* TODO: doesn't really cancel pending transfers so they might
* come in after SR_DF_END is sent. */
lupfd = libusb_get_pollfds(drvc->usb_context);
for (i = 0; lupfd[i]; i++)
sr_source_remove(lupfd[i]->fd);
free(lupfd);
packet.type = SR_DF_END;
sr_session_send(sdi, &packet);
devc->dev_state = IDLE;
return TRUE;
}
/* Always handle pending libusb events. */
tv.tv_sec = tv.tv_usec = 0;
libusb_handle_events_timeout(drvc->usb_context, &tv);
ctx = cb_data;
/* TODO: ugh */
if (devc->dev_state == NEW_CAPTURE) {
if (dso_capture_start(devc) != SR_OK)
@ -840,7 +857,7 @@ static int hw_dev_acquisition_start(const struct sr_dev_inst *sdi,
lupfd = libusb_get_pollfds(drvc->usb_context);
for (i = 0; lupfd[i]; i++)
sr_source_add(lupfd[i]->fd, lupfd[i]->events, TICK, handle_event,
ctx);
(void *)sdi);
free(lupfd);
/* Send header packet to the session bus. */
@ -859,9 +876,6 @@ static int hw_dev_acquisition_start(const struct sr_dev_inst *sdi,
return SR_OK;
}
/* TODO: doesn't really cancel pending transfers so they might come in after
* SR_DF_END is sent.
*/
static int hw_dev_acquisition_stop(const struct sr_dev_inst *sdi,
void *cb_data)
{
@ -872,11 +886,8 @@ static int hw_dev_acquisition_stop(const struct sr_dev_inst *sdi,
if (sdi->status != SR_ST_ACTIVE)
return SR_ERR;
ctx = sdi->priv;
ctx->dev_state = IDLE;
packet.type = SR_DF_END;
sr_session_send(cb_data, &packet);
devc = sdi->priv;
devc->dev_state = STOPPING;
return SR_OK;
}

3
hardware/hantek-dso/dso.h
View File

@ -143,7 +143,8 @@ enum states {
IDLE,
NEW_CAPTURE,
CAPTURE,
FETCH_DATA
FETCH_DATA,
STOPPING,
};
struct dso_profile {