5  * SPDX-License-Identifier: Apache-2.0
10 #include <zephyr/drivers/counter.h>
11 #include <zephyr/drivers/clock_control.h>
12 #include <zephyr/irq.h>
14 #include <zephyr/logging/log.h>
15 #include <zephyr/sys/barrier.h>
19 #define DEV_CFG(_dev) ((const struct mcux_gpt_config *)(_dev)->config)
20 #define DEV_DATA(_dev) ((struct mcux_gpt_data *)(_dev)->data)
48 	GPT_Type *base = get_base(dev);  in mcux_gpt_start()  local
50 	GPT_StartTimer(base);  in mcux_gpt_start()
57 	GPT_Type *base = get_base(dev);  in mcux_gpt_stop()  local
59 	GPT_StopTimer(base);  in mcux_gpt_stop()
66 	GPT_Type *base = get_base(dev);  in mcux_gpt_get_value()  local
68 	*ticks = GPT_GetCurrentTimerCount(base);  in mcux_gpt_get_value()
75 	GPT_Type *base = get_base(dev);  in mcux_gpt_set_alarm()  local
76 	struct mcux_gpt_data *data = dev->data;  in mcux_gpt_set_alarm()
78 	uint32_t current = GPT_GetCurrentTimerCount(base);  in mcux_gpt_set_alarm()
79 	uint32_t ticks = alarm_cfg->ticks;  in mcux_gpt_set_alarm()
83 		return -EINVAL;  in mcux_gpt_set_alarm()
86 	if ((alarm_cfg->flags & COUNTER_ALARM_CFG_ABSOLUTE) == 0) {  in mcux_gpt_set_alarm()
90 	if (data->alarm_callback) {  in mcux_gpt_set_alarm()
91 		return -EBUSY;  in mcux_gpt_set_alarm()
94 	data->alarm_callback = alarm_cfg->callback;  in mcux_gpt_set_alarm()
95 	data->alarm_user_data = alarm_cfg->user_data;  in mcux_gpt_set_alarm()
97 	GPT_SetOutputCompareValue(base, kGPT_OutputCompare_Channel1,  in mcux_gpt_set_alarm()
99 	GPT_EnableInterrupts(base, kGPT_OutputCompare1InterruptEnable);  in mcux_gpt_set_alarm()
106 	GPT_Type *base = get_base(dev);  in mcux_gpt_cancel_alarm()  local
107 	struct mcux_gpt_data *data = dev->data;  in mcux_gpt_cancel_alarm()
111 		return -EINVAL;  in mcux_gpt_cancel_alarm()
114 	GPT_DisableInterrupts(base, kGPT_OutputCompare1InterruptEnable);  in mcux_gpt_cancel_alarm()
115 	data->alarm_callback = NULL;  in mcux_gpt_cancel_alarm()
122 	GPT_Type *base = get_base(dev);  in mcux_gpt_isr()  local
123 	struct mcux_gpt_data *data = dev->data;  in mcux_gpt_isr()
124 	uint32_t current = GPT_GetCurrentTimerCount(base);  in mcux_gpt_isr()
127 	status =  GPT_GetStatusFlags(base, kGPT_OutputCompare1Flag |  in mcux_gpt_isr()
129 	GPT_ClearStatusFlags(base, status);  in mcux_gpt_isr()
132 	if ((status & kGPT_OutputCompare1Flag) && data->alarm_callback) {  in mcux_gpt_isr()
133 		GPT_DisableInterrupts(base,  in mcux_gpt_isr()
135 		counter_alarm_callback_t alarm_cb = data->alarm_callback;  in mcux_gpt_isr()
136 		data->alarm_callback = NULL;  in mcux_gpt_isr()
137 		alarm_cb(dev, 0, current, data->alarm_user_data);  in mcux_gpt_isr()
140 	if ((status & kGPT_RollOverFlag) && data->top_callback) {  in mcux_gpt_isr()
141 		data->top_callback(dev, data->top_user_data);  in mcux_gpt_isr()
147 	GPT_Type *base = get_base(dev);  in mcux_gpt_get_pending_int()  local
149 	return GPT_GetStatusFlags(base, kGPT_OutputCompare1Flag);  in mcux_gpt_get_pending_int()
155 	const struct mcux_gpt_config *config = dev->config;  in mcux_gpt_set_top_value()
156 	GPT_Type *base = get_base(dev);  in mcux_gpt_set_top_value()  local
157 	struct mcux_gpt_data *data = dev->data;  in mcux_gpt_set_top_value()
159 	if (cfg->ticks != config->info.max_top_value) {  in mcux_gpt_set_top_value()
161 			config->info.max_top_value);  in mcux_gpt_set_top_value()
162 		return -ENOTSUP;  in mcux_gpt_set_top_value()
165 	data->top_callback = cfg->callback;  in mcux_gpt_set_top_value()
166 	data->top_user_data = cfg->user_data;  in mcux_gpt_set_top_value()
168 	GPT_EnableInterrupts(base, kGPT_RollOverFlagInterruptEnable);  in mcux_gpt_set_top_value()
175 	const struct mcux_gpt_config *config = dev->config;  in mcux_gpt_get_top_value()
177 	return config->info.max_top_value;  in mcux_gpt_get_top_value()
182 	const struct mcux_gpt_config *config = dev->config;  in mcux_gpt_init()
185 	GPT_Type *base;  in mcux_gpt_init()  local
189 	if (!device_is_ready(config->clock_dev)) {  in mcux_gpt_init()
191 		return -ENODEV;  in mcux_gpt_init()
194 	if (clock_control_get_rate(config->clock_dev, config->clock_subsys,  in mcux_gpt_init()
196 		return -EINVAL;  in mcux_gpt_init()
200 	if (clock_freq % config->info.freq) {  in mcux_gpt_init()
201 		LOG_ERR("Cannot Adjust GPT freq to %u\n", config->info.freq);  in mcux_gpt_init()
203 		return -EINVAL;  in mcux_gpt_init()
209 	gptConfig.divider = clock_freq / config->info.freq;  in mcux_gpt_init()
210 	base = get_base(dev);  in mcux_gpt_init()
211 	GPT_Init(base, &gptConfig);  in mcux_gpt_init()