1*4882a593Smuzhiyun /* SPDX-License-Identifier: GPL-2.0 */ 2*4882a593Smuzhiyun 3*4882a593Smuzhiyun /* Copyright (c) 2012-2018, The Linux Foundation. All rights reserved. 4*4882a593Smuzhiyun * Copyright (C) 2019-2020 Linaro Ltd. 5*4882a593Smuzhiyun */ 6*4882a593Smuzhiyun #ifndef _IPA_SMP2P_H_ 7*4882a593Smuzhiyun #define _IPA_SMP2P_H_ 8*4882a593Smuzhiyun 9*4882a593Smuzhiyun #include <linux/types.h> 10*4882a593Smuzhiyun 11*4882a593Smuzhiyun struct ipa; 12*4882a593Smuzhiyun 13*4882a593Smuzhiyun /** 14*4882a593Smuzhiyun * ipa_smp2p_init() - Initialize the IPA SMP2P subsystem 15*4882a593Smuzhiyun * @ipa: IPA pointer 16*4882a593Smuzhiyun * @modem_init: Whether the modem is responsible for GSI initialization 17*4882a593Smuzhiyun * 18*4882a593Smuzhiyun * Return: 0 if successful, or a negative error code 19*4882a593Smuzhiyun * 20*4882a593Smuzhiyun */ 21*4882a593Smuzhiyun int ipa_smp2p_init(struct ipa *ipa, bool modem_init); 22*4882a593Smuzhiyun 23*4882a593Smuzhiyun /** 24*4882a593Smuzhiyun * ipa_smp2p_exit() - Inverse of ipa_smp2p_init() 25*4882a593Smuzhiyun * @ipa: IPA pointer 26*4882a593Smuzhiyun */ 27*4882a593Smuzhiyun void ipa_smp2p_exit(struct ipa *ipa); 28*4882a593Smuzhiyun 29*4882a593Smuzhiyun /** 30*4882a593Smuzhiyun * ipa_smp2p_disable() - Prevent "ipa-setup-ready" interrupt handling 31*4882a593Smuzhiyun * @IPA: IPA pointer 32*4882a593Smuzhiyun * 33*4882a593Smuzhiyun * Prevent handling of the "setup ready" interrupt from the modem. 34*4882a593Smuzhiyun * This is used before initiating shutdown of the driver. 35*4882a593Smuzhiyun */ 36*4882a593Smuzhiyun void ipa_smp2p_disable(struct ipa *ipa); 37*4882a593Smuzhiyun 38*4882a593Smuzhiyun /** 39*4882a593Smuzhiyun * ipa_smp2p_notify_reset() - Reset modem notification state 40*4882a593Smuzhiyun * @ipa: IPA pointer 41*4882a593Smuzhiyun * 42*4882a593Smuzhiyun * If the modem crashes it queries the IPA clock state. In cleaning 43*4882a593Smuzhiyun * up after such a crash this is used to reset some state maintained 44*4882a593Smuzhiyun * for managing this notification. 45*4882a593Smuzhiyun */ 46*4882a593Smuzhiyun void ipa_smp2p_notify_reset(struct ipa *ipa); 47*4882a593Smuzhiyun 48*4882a593Smuzhiyun #endif /* _IPA_SMP2P_H_ */ 49