| /* SPDX-License-Identifier: GPL-2.0 */ |
| |
| /* Copyright (c) 2012-2018, The Linux Foundation. All rights reserved. |
| * Copyright (C) 2019-2022 Linaro Ltd. |
| */ |
| #ifndef _IPA_UC_H_ |
| #define _IPA_UC_H_ |
| |
| struct ipa; |
| |
| /** |
| * ipa_uc_config() - Configure the IPA microcontroller subsystem |
| * @ipa: IPA pointer |
| */ |
| void ipa_uc_config(struct ipa *ipa); |
| |
| /** |
| * ipa_uc_deconfig() - Inverse of ipa_uc_config() |
| * @ipa: IPA pointer |
| */ |
| void ipa_uc_deconfig(struct ipa *ipa); |
| |
| /** |
| * ipa_uc_power() - Take a proxy power reference for the microcontroller |
| * @ipa: IPA pointer |
| * |
| * The first time the modem boots, it loads firmware for and starts the |
| * IPA-resident microcontroller. The microcontroller signals that it |
| * has completed its initialization by sending an INIT_COMPLETED response |
| * message to the AP. The AP must ensure the IPA is powered until |
| * it receives this message, and to do so we take a "proxy" clock |
| * reference on its behalf here. Once we receive the INIT_COMPLETED |
| * message (in ipa_uc_response_hdlr()) we drop this power reference. |
| */ |
| void ipa_uc_power(struct ipa *ipa); |
| |
| /** |
| * ipa_uc_panic_notifier() |
| * @ipa: IPA pointer |
| * |
| * Notifier function called when the system crashes, to inform the |
| * microcontroller of the event. |
| */ |
| void ipa_uc_panic_notifier(struct ipa *ipa); |
| |
| #endif /* _IPA_UC_H_ */ |
