net/ipa/ipa_qmi.h

1 /* SPDX-License-Identifier: GPL-2.0 */
4  * Copyright (C) 2018-2024 Linaro Ltd.
14 struct ipa;
17  * struct ipa_qmi - QMI state associated with an IPA
18  * @client_handle:	Used to send an QMI requests to the modem
19  * @server_handle:	Used to handle QMI requests from the modem
20  * @modem_sq:		QMAP socket address for the modem QMI server
45  * ipa_qmi_setup() - Set up for QMI message exchange
46  * @ipa:		IPA pointer
48  * This is called at the end of ipa_setup(), to prepare for the exchange
49  * of QMI messages that perform a "handshake" between the AP and modem.
50  * When the modem QMI server announces its presence, an AP request message
51  * supplies operating parameters to be used to the modem, and the modem
52  * acknowledges receipt of those parameters.  The modem will not touch the
53  * IPA hardware until this handshake is complete.
55  * If the modem crashes (or shuts down) a new handshake begins when the
56  * modem's QMI server is started again.
58 int ipa_qmi_setup(struct ipa *ipa);
61  * ipa_qmi_teardown() - Tear down IPA QMI handles
62  * @ipa:		IPA pointer
64 void ipa_qmi_teardown(struct ipa *ipa);