Ensure DSLogic can be stopped.

[libsigrok.git] / src / hardware / fx2lafw / api.c

diff --git a/src/hardware/fx2lafw/api.c b/src/hardware/fx2lafw/api.c
index 4a80b57494d5adb2ba72d7505b56ddd3ac6b822a..4af9dd8a484769166b2a91afe550c9273a9ee6b5 100644 (file)
--- a/src/hardware/fx2lafw/api.c
+++ b/src/hardware/fx2lafw/api.c
@@ -708,11 +708,25 @@ static int start_transfers(const struct sr_dev_inst *sdi)
 static void LIBUSB_CALL dslogic_trigger_receive(struct libusb_transfer *transfer)
 {
        const struct sr_dev_inst *sdi;
+       struct sr_datafeed_packet packet;
        struct dslogic_trigger_pos *tpos;
+       struct dev_context *devc;
 
        sdi = transfer->user_data;
-
-       if (transfer->status == LIBUSB_TRANSFER_COMPLETED
+       devc = sdi->priv;
+       if (transfer->status == LIBUSB_TRANSFER_CANCELLED) {
+               sr_dbg("Trigger transfer canceled.");
+               /* Terminate session. */
+               packet.type = SR_DF_END;
+               sr_session_send(sdi, &packet);
+               usb_source_remove(sdi->session, devc->ctx);
+               devc->num_transfers = 0;
+               g_free(devc->transfers);
+               if (devc->stl) {
+                       soft_trigger_logic_free(devc->stl);
+                       devc->stl = NULL;
+               }
+       } else if (transfer->status == LIBUSB_TRANSFER_COMPLETED
                        && transfer->actual_length == sizeof(struct dslogic_trigger_pos)) {
                tpos = (struct dslogic_trigger_pos *)transfer->buffer;
                sr_dbg("tpos real_pos %.8x ram_saddr %.8x", tpos->real_pos, tpos->ram_saddr);
@@ -729,9 +743,11 @@ static int dslogic_trigger_request(const struct sr_dev_inst *sdi)
        struct sr_usb_dev_inst *usb;
        struct libusb_transfer *transfer;
        struct dslogic_trigger_pos *tpos;
+       struct dev_context *devc;
        int ret;
 
        usb = sdi->conn;
+       devc = sdi->priv;
 
        if ((ret = dslogic_stop_acquisition(sdi)) != SR_OK)
                return ret;
@@ -755,6 +771,15 @@ static int dslogic_trigger_request(const struct sr_dev_inst *sdi)
                return SR_ERR;
        }
 
+       devc->transfers = g_try_malloc0(sizeof(*devc->transfers));
+       if (!devc->transfers) {
+               sr_err("USB trigger_pos transfer malloc failed.");
+               return SR_ERR_MALLOC;
+       }
+       devc->num_transfers = 1;
+       devc->submitted_transfers++;
+       devc->transfers[0] = transfer;
+
        return ret;
 }
 
@@ -798,6 +823,7 @@ static int dev_acquisition_stop(struct sr_dev_inst *sdi, void *cb_data)
 {
        (void)cb_data;
 
+       dslogic_stop_acquisition(sdi);
        fx2lafw_abort_acquisition(sdi->priv);
 
        return SR_OK;