soc/qcom/qmi_interface.c

295  * @txn:	transaction context
308 int qmi_txn_init(struct qmi_handle *qmi, struct qmi_txn *txn,
313 	memset(txn, 0, sizeof(*txn));
315 	mutex_init(&txn->lock);
316 	init_completion(&txn->completion);
317 	txn->qmi = qmi;
318 	txn->ei = ei;
319 	txn->dest = c_struct;
322 	ret = idr_alloc_cyclic(&qmi->txns, txn, 0, U16_MAX, GFP_KERNEL);
326 	txn->id = ret;
335  * @txn:	transaction handle
344 int qmi_txn_wait(struct qmi_txn *txn, unsigned long timeout)
346 	struct qmi_handle *qmi = txn->qmi;
349 	ret = wait_for_completion_timeout(&txn->completion, timeout);
352 	mutex_lock(&txn->lock);
353 	idr_remove(&qmi->txns, txn->id);
354 	mutex_unlock(&txn->lock);
360 		return txn->result;
366  * @txn:	transaction id
368 void qmi_txn_cancel(struct qmi_txn *txn)
370 	struct qmi_handle *qmi = txn->qmi;
373 	mutex_lock(&txn->lock);
374 	idr_remove(&qmi->txns, txn->id);
375 	mutex_unlock(&txn->lock);
384  * @txn:	transaction object for the message
391 			       struct qmi_txn *txn, const void *buf, size_t len)
418 		handler->fn(qmi, sq, txn, dest);
478 	struct qmi_txn *txn = NULL;
491 		txn = idr_find(&qmi->txns, hdr->txn_id);
494 		if (!txn) {
499 		mutex_lock(&txn->lock);
502 		if (txn->dest && txn->ei) {
503 			ret = qmi_decode_message(buf, len, txn->ei, txn->dest);
507 			txn->result = ret;
508 			complete(&txn->completion);
510 			qmi_invoke_handler(qmi, sq, txn, buf, len);
513 		mutex_unlock(&txn->lock);
515 		/* Create a txn based on the txn_id of the incoming message */
726  * @txn:	transaction object to use for the message
734  * with @msg_id and @txn into a buffer of maximum size @len, and sends this to
740 				struct sockaddr_qrtr *sq, struct qmi_txn *txn,
752 				 txn->id, ei,
784  * @txn:	transaction object to use for the message
793 			 struct qmi_txn *txn, int msg_id, size_t len,
796 	return qmi_send_message(qmi, sq, txn, QMI_REQUEST, msg_id, len, ei,
805  * @txn:	transaction object to use for the message
814 			  struct qmi_txn *txn, int msg_id, size_t len,
817 	return qmi_send_message(qmi, sq, txn, QMI_RESPONSE, msg_id, len, ei,
838 	struct qmi_txn txn;
842 	ret = qmi_txn_init(qmi, &txn, NULL, NULL);
846 	rval = qmi_send_message(qmi, sq, &txn, QMI_INDICATION, msg_id, len, ei,
849 	/* We don't care about future messages on this txn */
850 	qmi_txn_cancel(&txn);