60 lines
1.7 KiB
C
60 lines
1.7 KiB
C
/* $OpenBSD: iosfvar.h,v 1.1 2023/04/23 00:20:26 dlg Exp $ */
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/*
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* Copyright (c) 2023 David Gwynne <dlg@openbsd.org>
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*
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* Permission to use, copy, modify, and distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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#ifndef _DEV_IC_IOSFVAR_H_
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#define _DEV_IC_IOSFVAR_H_
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/*
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* iosf provider api
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*/
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struct iosf_mbi {
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struct device *mbi_dev;
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int mbi_prio;
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int mbi_semaddr;
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uint32_t (*mbi_mdr_rd)(struct iosf_mbi *sc, uint32_t, uint32_t);
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void (*mbi_mdr_wr)(struct iosf_mbi *sc, uint32_t, uint32_t,
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uint32_t);
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};
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void iosf_mbi_attach(struct iosf_mbi *);
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/*
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* iosf consumer apis
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*/
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int iosf_mbi_available(void);
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/* for i2c */
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int iosf_i2c_acquire(int);
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void iosf_i2c_relese(int);
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/* for drm to coordinate with the rest of the kernel */
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void iosf_mbi_punit_acquire(void);
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void iosf_mbi_punit_release(void);
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void iosf_mbi_assert_punit_acquired(void);
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#ifdef nyetyet
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int iosf_mbi_read(uint8_t, uint8_t, uint32_t, uint32_t *);
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int iosf_mbi_write(uint8_t, uint8_t, uint32_t, uint32_t);
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int iosf_mbi_modify(uint8_t, uint8_t, uint32_t, uint32_t, uint32_t);
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#endif
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#endif /* _DEV_IC_IOSFVAR_H_ */
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