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https://github.com/zephyrproject-rtos/zephyr
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789081673f
This is a start to move away from the C99 {u}int{8,16,32,64}_t types to
Zephyr defined u{8,16,32,64}_t and s{8,16,32,64}_t. This allows Zephyr
to define the sized types in a consistent manor across all the
architectures we support and not conflict with what various compilers
and libc might do with regards to the C99 types.
We introduce <zephyr/types.h> as part of this and have it include
<stdint.h> for now until we transition all the code away from the C99
types.
We go with u{8,16,32,64}_t and s{8,16,32,64}_t as there are some
existing variables defined u8 & u16 as well as to be consistent with
Zephyr naming conventions.
Jira: ZEP-2051
Change-Id: I451fed0623b029d65866622e478225dfab2c0ca8
Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
117 lines
2.1 KiB
C
117 lines
2.1 KiB
C
/*
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* Copyright (c) 2015 Intel Corporation.
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#ifndef _WDT_H_
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#define _WDT_H_
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#include <zephyr/types.h>
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#include <device.h>
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#include <misc/util.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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#define WDT_MODE (BIT(1))
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#define WDT_MODE_OFFSET (1)
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#define WDT_TIMEOUT_MASK (0xF)
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enum wdt_mode {
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WDT_MODE_RESET = 0,
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WDT_MODE_INTERRUPT_RESET
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};
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/**
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* WDT clock cycles for timeout type.
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*/
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enum wdt_clock_timeout_cycles {
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WDT_2_16_CYCLES,
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WDT_2_17_CYCLES,
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WDT_2_18_CYCLES,
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WDT_2_19_CYCLES,
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WDT_2_20_CYCLES,
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WDT_2_21_CYCLES,
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WDT_2_22_CYCLES,
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WDT_2_23_CYCLES,
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WDT_2_24_CYCLES,
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WDT_2_25_CYCLES,
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WDT_2_26_CYCLES,
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WDT_2_27_CYCLES,
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WDT_2_28_CYCLES,
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WDT_2_29_CYCLES,
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WDT_2_30_CYCLES,
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WDT_2_31_CYCLES
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};
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/**
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* WDT configuration struct.
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*/
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struct wdt_config {
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uint32_t timeout;
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enum wdt_mode mode;
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void (*interrupt_fn)(struct device *dev);
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};
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typedef void (*wdt_api_enable)(struct device *dev);
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typedef void (*wdt_api_disable)(struct device *dev);
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typedef int (*wdt_api_set_config)(struct device *dev,
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struct wdt_config *config);
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typedef void (*wdt_api_get_config)(struct device *dev,
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struct wdt_config *config);
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typedef void (*wdt_api_reload)(struct device *dev);
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struct wdt_driver_api {
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wdt_api_enable enable;
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wdt_api_disable disable;
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wdt_api_get_config get_config;
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wdt_api_set_config set_config;
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wdt_api_reload reload;
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};
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static inline void wdt_enable(struct device *dev)
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{
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const struct wdt_driver_api *api = dev->driver_api;
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api->enable(dev);
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}
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static inline void wdt_disable(struct device *dev)
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{
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const struct wdt_driver_api *api = dev->driver_api;
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api->disable(dev);
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}
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static inline void wdt_get_config(struct device *dev,
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struct wdt_config *config)
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{
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const struct wdt_driver_api *api = dev->driver_api;
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api->get_config(dev, config);
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}
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static inline int wdt_set_config(struct device *dev,
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struct wdt_config *config)
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{
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const struct wdt_driver_api *api = dev->driver_api;
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return api->set_config(dev, config);
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}
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static inline void wdt_reload(struct device *dev)
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{
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const struct wdt_driver_api *api = dev->driver_api;
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api->reload(dev);
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}
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#ifdef __cplusplus
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}
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#endif
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#endif
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