a646d6ec90
This patch includes code implementing the modem functionality. There are several communication paths between the AP and modem, separate from the main data path provided by IPA. SMP2P provides primitive messaging and interrupt capability, and QMI allows more complex out-of-band messaging to occur between entities on the AP and modem. (SMP2P and QMI support are added by the next patch.) Management of these (plus the network device implementing the data path) is done by code within "ipa_modem.c". Sort of unrelated, this patch also includes the code supporting the microcontroller CPU present on the IPA. The microcontroller can be used to implement special handling of packets, but at this time we don't support that. Still, it is a component that needs to be initialized, and in the event of a crash we need to do some synchronization between the AP and the microcontroller. Signed-off-by: Alex Elder <elder@linaro.org> Signed-off-by: David S. Miller <davem@davemloft.net>
33 lines
680 B
C
33 lines
680 B
C
/* SPDX-License-Identifier: GPL-2.0 */
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/* Copyright (c) 2012-2018, The Linux Foundation. All rights reserved.
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* Copyright (C) 2019-2020 Linaro Ltd.
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*/
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#ifndef _IPA_UC_H_
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#define _IPA_UC_H_
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struct ipa;
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/**
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* ipa_uc_setup() - set up the IPA microcontroller subsystem
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* @ipa: IPA pointer
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*/
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void ipa_uc_setup(struct ipa *ipa);
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/**
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* ipa_uc_teardown() - inverse of ipa_uc_setup()
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* @ipa: IPA pointer
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*/
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void ipa_uc_teardown(struct ipa *ipa);
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/**
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* ipa_uc_panic_notifier()
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* @ipa: IPA pointer
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*
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* Notifier function called when the system crashes, to inform the
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* microcontroller of the event.
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*/
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void ipa_uc_panic_notifier(struct ipa *ipa);
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#endif /* _IPA_UC_H_ */
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