James Tavares has uploaded this change for review. ( https://gerrit.osmocom.org/c/simtrace2/+/26864 )

Change subject: simtrace2-tool: hack: kick the comms by sending a fake message ......................................................................

simtrace2-tool: hack: kick the comms by sending a fake message

This is a workaround until the root cause of the communications failure between simtrace2-tool and simtrace2 firmware is identified. Additional details provided on simtrace mailing list.

Change-Id: I40fa06bee5d8194516497e16597e069124ddf0fb --- M host/include/osmocom/simtrace2/simtrace2_api.h M host/lib/simtrace2_api.c M host/src/simtrace2-tool.c 3 files changed, 23 insertions(+), 0 deletions(-)

git pull ssh://gerrit.osmocom.org:29418/simtrace2 refs/changes/64/26864/1

diff --git a/host/include/osmocom/simtrace2/simtrace2_api.h b/host/include/osmocom/simtrace2/simtrace2_api.h index d658d16..3a7e5ae 100644 --- a/host/include/osmocom/simtrace2/simtrace2_api.h +++ b/host/include/osmocom/simtrace2/simtrace2_api.h @@ -44,6 +44,7 @@ int osmo_st2_slot_tx_msg(struct osmo_st2_slot *slot, struct msgb *msg, uint8_t msg_class, uint8_t msg_type);

+int osmo_st2_generic_do_error_none(struct osmo_st2_cardem_inst *ci);

int osmo_st2_cardem_request_card_insert(struct osmo_st2_cardem_inst *ci, bool inserted); int osmo_st2_cardem_request_pb_and_rx(struct osmo_st2_cardem_inst *ci, uint8_t pb, uint8_t le); diff --git a/host/lib/simtrace2_api.c b/host/lib/simtrace2_api.c index 4ad7eb7..beb6de4 100644 --- a/host/lib/simtrace2_api.c +++ b/host/lib/simtrace2_api.c @@ -155,6 +155,24 @@ }

/*********************************************************************** + * Generic protocol + ***********************************************************************/ + +/*! \brief Send an empty DO_ERROR message to the simtrace2 board */ +int osmo_st2_generic_do_error_none(struct osmo_st2_cardem_inst *ci) +{ + struct msgb *msg = st_msgb_alloc(); + struct cardemu_usb_msg_error *err; + + LOGSLOT(ci->slot, LOGL_NOTICE, "<= %s\n", __func__); + + err = (struct cardemu_usb_msg_error *) msgb_put(msg, sizeof(*err)); + memset(err, 0, sizeof(*err)); + + return osmo_st2_slot_tx_msg(ci->slot, msg, SIMTRACE_MSGC_GENERIC, SIMTRACE_CMD_DO_ERROR); +} + +/*********************************************************************** * Card Emulation protocol ***********************************************************************/

diff --git a/host/src/simtrace2-tool.c b/host/src/simtrace2-tool.c index d92638f..407eac9 100644 --- a/host/src/simtrace2-tool.c +++ b/host/src/simtrace2-tool.c @@ -297,6 +297,10 @@ fprintf(stderr, "can't obtain EP addrs; rc=%d\n", rc); goto close_exit; } + + // HACK: kick the board with a fake message to get subsequent messages to be accepted + // TODO: figure out the real problem, and remove this + osmo_st2_generic_do_error_none(ci); }

if (argc - optind <= 0) {