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https://github.com/zephyrproject-rtos/zephyr
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e18fcbba5a
Now that device_api attribute is unmodified at runtime, as well as all the other attributes, it is possible to switch all device driver instance to be constant. A coccinelle rule is used for this: @r_const_dev_1 disable optional_qualifier @ @@ -struct device * +const struct device * @r_const_dev_2 disable optional_qualifier @ @@ -struct device * const +const struct device * Fixes #27399 Signed-off-by: Tomasz Bursztyka <tomasz.bursztyka@linux.intel.com>
48 lines
1.4 KiB
C
48 lines
1.4 KiB
C
/*
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* Copyright (c) 2019 Henrik Brix Andersen <henrik@brixandersen.dk>
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#ifndef ZEPHYR_INCLUDE_DRIVERS_LED_HT16K33_H_
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#define ZEPHYR_INCLUDE_DRIVERS_LED_HT16K33_H_
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#include <device.h>
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#include <zephyr/types.h>
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/**
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* Register a HT16K33 keyscan device to be notified of relevant
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* keyscan events by the keyscan interrupt thread in the HT16K33
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* parent driver.
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*
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* @param parent HT16K33 parent device.
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* @param child HT16K33 keyscan child device.
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* @param keyscan_idx Index of the keyscan line handled by the keyscan
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* child device (0, 1, or 2).
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* @return 0 if successful, negative errno code on failure.
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*/
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int ht16k33_register_keyscan_device(const struct device *parent,
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const struct device *child,
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uint8_t keyscan_idx);
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/**
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* Check if a HT16K33 keyscan interrupt is pending.
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*
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* @param parent HT16K33 parent device.
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* @return status != 0 if an interrupt is pending.
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*/
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uint32_t ht16k33_get_pending_int(const struct device *parent);
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/**
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* Dispatch keyscan row data from a keyscan event to be handled by a
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* HT16K33 keyscan GPIO child device.
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*
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* @param child HT16K33 keyscan child device.
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* @param keys Bitmask of key state for the row.
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*/
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void ht16k33_process_keyscan_row_data(const struct device *child,
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uint32_t keys);
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#endif /* ZEPHYR_INCLUDE_DRIVERS_LED_HT16K33_H_ */
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