forked from mirrors/linux
7774f3d1dd
Update header inclusions to follow IWYU (Include What You Use) principle. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Reviewed-by: Duje Mihanović <duje.mihanovic@skole.hr> Link: https://lore.kernel.org/r/20240223203010.881065-1-andriy.shevchenko@linux.intel.com Signed-off-by: Lee Jones <lee@kernel.org>
38 lines
1.1 KiB
C
38 lines
1.1 KiB
C
/* SPDX-License-Identifier: GPL-2.0-only */
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/*
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* Shared library for Kinetic's ExpressWire protocol.
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* This protocol works by pulsing the ExpressWire IC's control GPIO.
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* ktd2692 and ktd2801 are known to use this protocol.
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*/
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#ifndef _LEDS_EXPRESSWIRE_H
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#define _LEDS_EXPRESSWIRE_H
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#include <linux/types.h>
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struct gpio_desc;
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struct expresswire_timing {
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unsigned long poweroff_us;
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unsigned long detect_delay_us;
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unsigned long detect_us;
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unsigned long data_start_us;
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unsigned long end_of_data_low_us;
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unsigned long end_of_data_high_us;
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unsigned long short_bitset_us;
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unsigned long long_bitset_us;
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};
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struct expresswire_common_props {
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struct gpio_desc *ctrl_gpio;
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struct expresswire_timing timing;
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};
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void expresswire_power_off(struct expresswire_common_props *props);
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void expresswire_enable(struct expresswire_common_props *props);
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void expresswire_start(struct expresswire_common_props *props);
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void expresswire_end(struct expresswire_common_props *props);
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void expresswire_set_bit(struct expresswire_common_props *props, bool bit);
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void expresswire_write_u8(struct expresswire_common_props *props, u8 val);
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#endif /* _LEDS_EXPRESSWIRE_H */
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