5  * SPDX-License-Identifier: Apache-2.0
28  * to select its timeout period.
50 /* Find the rounded up value of cycles for supplied timeout. When using ULFRCO
51  * (default), 1 cycle is 1 ms +/- 12%.
53 static int wdt_gecko_get_persel_from_timeout(uint32_t timeout)  in wdt_gecko_get_persel_from_timeout()  argument
58 		if (wdt_gecko_get_timeout_from_persel(idx) >= timeout) {  in wdt_gecko_get_persel_from_timeout()
66 static int wdt_gecko_convert_window(uint32_t window, uint32_t period)  in wdt_gecko_convert_window()  argument
71 	incr_val = period / 8;  in wdt_gecko_convert_window()
75 	 * timeout period up to 87.5% (= 7 * 12.5%)  in wdt_gecko_convert_window()
92 	const struct wdt_gecko_cfg *config = dev->config;  in wdt_gecko_setup()
93 	struct wdt_gecko_data *data = dev->data;  in wdt_gecko_setup()
94 	WDOG_TypeDef *wdog = config->base;  in wdt_gecko_setup()
96 	if (!data->timeout_installed) {  in wdt_gecko_setup()
98 		return -EINVAL;  in wdt_gecko_setup()
101 	data->wdog_config.em2Run =  in wdt_gecko_setup()
103 	data->wdog_config.em3Run =  in wdt_gecko_setup()
106 	data->wdog_config.debugRun =  in wdt_gecko_setup()
109 	if (data->callback != NULL) {  in wdt_gecko_setup()
113 		/* Enable timeout interrupt */  in wdt_gecko_setup()
116 		/* Disable timeout interrupt */  in wdt_gecko_setup()
121 	WDOGn_Init(wdog, &data->wdog_config);  in wdt_gecko_setup()
129 	const struct wdt_gecko_cfg *config = dev->config;  in wdt_gecko_disable()
130 	struct wdt_gecko_data *data = dev->data;  in wdt_gecko_disable()
131 	WDOG_TypeDef *wdog = config->base;  in wdt_gecko_disable()
134 	data->timeout_installed = false;  in wdt_gecko_disable()
143 	struct wdt_gecko_data *data = dev->data;  in wdt_gecko_install_timeout()
144 	data->wdog_config = (WDOG_Init_TypeDef)WDOG_INIT_DEFAULT;  in wdt_gecko_install_timeout()
147 	if (data->timeout_installed) {  in wdt_gecko_install_timeout()
149 		return -ENOMEM;  in wdt_gecko_install_timeout()
152 	if ((cfg->window.max < wdt_gecko_get_timeout_from_persel(0)) ||  in wdt_gecko_install_timeout()
153 		(cfg->window.max > wdt_gecko_get_timeout_from_persel(  in wdt_gecko_install_timeout()
155 		LOG_ERR("Upper limit timeout out of range");  in wdt_gecko_install_timeout()
156 		return -EINVAL;  in wdt_gecko_install_timeout()
160 	data->wdog_config.clkSel = wdogClkSelULFRCO;  in wdt_gecko_install_timeout()
163 	data->wdog_config.perSel = (WDOG_PeriodSel_TypeDef)  in wdt_gecko_install_timeout()
164 		wdt_gecko_get_persel_from_timeout(cfg->window.max);  in wdt_gecko_install_timeout()
167 		data->wdog_config.perSel);  in wdt_gecko_install_timeout()
168 	LOG_INF("Installed timeout value: %u", installed_timeout);  in wdt_gecko_install_timeout()
170 	if (cfg->window.min > 0) {  in wdt_gecko_install_timeout()
171 		/* Window mode. Use rounded up timeout value to  in wdt_gecko_install_timeout()
174 		data->wdog_config.winSel = (WDOG_WinSel_TypeDef)  in wdt_gecko_install_timeout()
175 			wdt_gecko_convert_window(cfg->window.min,  in wdt_gecko_install_timeout()
179 			(installed_timeout / 8) * data->wdog_config.winSel);  in wdt_gecko_install_timeout()
182 		data->wdog_config.winSel = wdogIllegalWindowDisable;  in wdt_gecko_install_timeout()
186 	switch (cfg->flags) {  in wdt_gecko_install_timeout()
189 		if (cfg->callback != NULL) {  in wdt_gecko_install_timeout()
191 			return -ENOTSUP;  in wdt_gecko_install_timeout()
193 		data->wdog_config.resetDisable = false;  in wdt_gecko_install_timeout()
198 		data->wdog_config.resetDisable = true;  in wdt_gecko_install_timeout()
199 		data->callback = cfg->callback;  in wdt_gecko_install_timeout()
200 		LOG_DBG("Configuring non-reset mode\n");  in wdt_gecko_install_timeout()
205 		return -EINVAL;  in wdt_gecko_install_timeout()
208 	data->timeout_installed = true;  in wdt_gecko_install_timeout()
215 	const struct wdt_gecko_cfg *config = dev->config;  in wdt_gecko_feed()
216 	WDOG_TypeDef *wdog = config->base;  in wdt_gecko_feed()
220 		return -EINVAL;  in wdt_gecko_feed()
231 	const struct wdt_gecko_cfg *config = dev->config;  in wdt_gecko_isr()
232 	struct wdt_gecko_data *data = dev->data;  in wdt_gecko_isr()
233 	WDOG_TypeDef *wdog = config->base;  in wdt_gecko_isr()
240 	if (data->callback != NULL) {  in wdt_gecko_isr()
241 		data->callback(dev, 0);  in wdt_gecko_isr()
247 	const struct wdt_gecko_cfg *config = dev->config;  in wdt_gecko_init()
258 	CMU_ClockEnable(config->clock, true);  in wdt_gecko_init()
261 	CMU_ClockSelectSet(config->clock, cmuSelect_ULFRCO);  in wdt_gecko_init()
267 	config->irq_cfg_func();  in wdt_gecko_init()
269 	LOG_INF("Device %s initialized", dev->name);  in wdt_gecko_init()