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Most Apple IOPs run a firmware that is based on what Apple calls RTKit. RTKit implements a common mailbox protocol. This code provides an implementation of the AP side of this protocol, providing a function to initialize RTKit-based firmwares as well as a function to do a clean shutdown of this firmware. Signed-off-by: Mark Kettenis <kettenis@openbsd.org> Reviewed-by: Simon Glass <sjg@chromium.org> Tested on: Macbook Air M1 Tested-by: Simon Glass <sjg@chromium.org>
12 lines
321 B
C
12 lines
321 B
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* (C) Copyright 2021 Mark Kettenis <kettenis@openbsd.org>
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*/
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#define APPLE_RTKIT_PWR_STATE_SLEEP 0x01
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#define APPLE_RTKIT_PWR_STATE_QUIESCED 0x10
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#define APPLE_RTKIT_PWR_STATE_ON 0x20
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int apple_rtkit_init(struct mbox_chan *);
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int apple_rtkit_shutdown(struct mbox_chan *, int);
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