4  * SPDX-License-Identifier: Apache-2.0
11  * initialization, interrupt handling, and any other module-wide tasks. The current implementation
34 	(*(struct nxp_mrt_channel_data *const *const)dev->data)
36 /* Device config->data is an array of data pointers ordered by channel number,
37  * dev->data is a pointer to one of these pointers in that array,
38  * so the value of the dev->data - dev->config->data is the channel index
41 	(((struct nxp_mrt_channel_data *const *)dev->data) - \
42 	((const struct nxp_mrt_config *)dev->config)->data)
44 /* Specific for each channel */
65 	const struct nxp_mrt_config *config = dev->config;  in nxp_mrt_stop()
66 	MRT_Type *base = config->base;  in nxp_mrt_stop()
69 	LOG_DBG("MRT@%p channel %d stopped", base, channel_id);  in nxp_mrt_stop()
70 	LOG_WRN("MRT channel resets upon stopping");  in nxp_mrt_stop()
73 	base->CHANNEL[channel_id].INTVAL = MRT_CHANNEL_INTVAL_LOAD(1);  in nxp_mrt_stop()
80 	const struct nxp_mrt_config *config = dev->config;  in nxp_mrt_start()
81 	MRT_Type *base = config->base;  in nxp_mrt_start()
85 	if (data->top <= 1) {  in nxp_mrt_start()
87 		LOG_INF("\"Started\" MRT@%p channel %d with default value %d",  in nxp_mrt_start()
88 				base, channel_id, config->info.max_top_value);  in nxp_mrt_start()
89 		data->top = config->info.max_top_value;  in nxp_mrt_start()
93 	base->CHANNEL[channel_id].INTVAL = data->top;  in nxp_mrt_start()
95 	LOG_DBG("MRT@%p channel %d started with top value %d", base, channel_id, data->top);  in nxp_mrt_start()
102 	const struct nxp_mrt_config *config = dev->config;  in nxp_mrt_get_value()
103 	MRT_Type *base = config->base;  in nxp_mrt_get_value()
106 	*ticks = base->CHANNEL[channel_id].TIMER & MRT_CHANNEL_TIMER_VALUE_MASK;  in nxp_mrt_get_value()
114 	const struct nxp_mrt_config *config = dev->config;  in nxp_mrt_set_top_value()
115 	MRT_Type *base = config->base;  in nxp_mrt_set_top_value()
119 	bool reset = !(cfg->flags & COUNTER_TOP_CFG_DONT_RESET);  in nxp_mrt_set_top_value()
120 	bool active = base->CHANNEL[channel_id].STAT & MRT_CHANNEL_STAT_RUN_MASK;  in nxp_mrt_set_top_value()  local
121 	uint32_t current_val = base->CHANNEL[channel_id].TIMER & MRT_CHANNEL_TIMER_VALUE_MASK;  in nxp_mrt_set_top_value()
125 	data->top = cfg->ticks;  in nxp_mrt_set_top_value()
128 	data->cb = cfg->callback;  in nxp_mrt_set_top_value()
129 	data->user_data = cfg->user_data;  in nxp_mrt_set_top_value()
133 	if (!active) {  in nxp_mrt_set_top_value()
134 		LOG_DBG("Set MRT@%p channel %d top value to %d", base, channel_id, data->top);  in nxp_mrt_set_top_value()
139 	if (cfg->ticks < current_val) {  in nxp_mrt_set_top_value()
140 		LOG_WRN("MRT@%p channel %d received requested top value %d which is "  in nxp_mrt_set_top_value()
142 			base, channel_id, cfg->ticks, current_val);  in nxp_mrt_set_top_value()
146 		ret = reset ? 0 : -ETIME;  in nxp_mrt_set_top_value()
148 		reset |= cfg->flags & COUNTER_TOP_CFG_RESET_WHEN_LATE;  in nxp_mrt_set_top_value()
152 	base->CHANNEL[channel_id].INTVAL = MRT_CHANNEL_INTVAL_IVALUE(cfg->ticks) |  in nxp_mrt_set_top_value()
155 	LOG_DBG("Changed MRT@%p channel %d top value while active to %d",  in nxp_mrt_set_top_value()
157 			base->CHANNEL[channel_id].INTVAL & MRT_CHANNEL_INTVAL_IVALUE_MASK);  in nxp_mrt_set_top_value()
164 	const struct nxp_mrt_config *config = dev->config;  in nxp_mrt_get_top_value()
165 	MRT_Type *base = config->base;  in nxp_mrt_get_top_value()
168 	return base->CHANNEL[channel_id].INTVAL & MRT_CHANNEL_INTVAL_IVALUE_MASK;  in nxp_mrt_get_top_value()
173 	const struct nxp_mrt_config *config = dev->config;  in nxp_mrt_get_pending_int()
174 	MRT_Type *base = config->base;  in nxp_mrt_get_pending_int()
177 	return base->CHANNEL[channel_id].STAT & MRT_CHANNEL_STAT_INTFLAG_MASK;  in nxp_mrt_get_pending_int()
189 	return -ENOTSUP;  in nxp_mrt_set_alarm()
198 	return -ENOTSUP;  in nxp_mrt_cancel_alarm()
203 	const struct nxp_mrt_config *config = dev->config;  in nxp_mrt_get_freq()
206 	clock_control_get_rate(config->clock_dev, config->clock_subsys, &freq);  in nxp_mrt_get_freq()
213 	const struct nxp_mrt_config *config = dev->config;  in nxp_mrt_init()
214 	MRT_Type *base = config->base;  in nxp_mrt_init()
215 	uint32_t num_channels = (base->MODCFG & MRT_MODCFG_NOC_MASK) >> MRT_MODCFG_NOC_SHIFT;  in nxp_mrt_init()
218 	if (!device_is_ready(config->reset.dev)) {  in nxp_mrt_init()
220 		return -ENODEV;  in nxp_mrt_init()
223 	ret = reset_line_toggle(config->reset.dev, config->reset.id);  in nxp_mrt_init()
228 	clock_control_on(config->clock_dev, config->clock_subsys);  in nxp_mrt_init()
230 	config->irq_config_func(dev);  in nxp_mrt_init()
234 		if (config->channels[i]) {  in nxp_mrt_init()
235 			base->CHANNEL[i].CTRL = MRT_CHANNEL_CTRL_INTEN_MASK;  in nxp_mrt_init()
244 	const struct nxp_mrt_config *config = dev->config;  in nxp_mrt_isr()
245 	MRT_Type *base = config->base;  in nxp_mrt_isr()
246 	uint32_t irq_pends = base->IRQ_FLAG;  in nxp_mrt_isr()
247 	uint32_t num_channels = (base->MODCFG & MRT_MODCFG_NOC_MASK) >> MRT_MODCFG_NOC_SHIFT;  in nxp_mrt_isr()
250 		/* Channel IRQ pending flags lowest order bits in IRQ_FLAG register */  in nxp_mrt_isr()
255 		LOG_DBG("Handling interrupt for MRT%p channel %d", base, i);  in nxp_mrt_isr()
258 		base->CHANNEL[i].STAT |= MRT_CHANNEL_STAT_INTFLAG_MASK;  in nxp_mrt_isr()
260 		/* Channel devs & pointer path to channel cbs is in shared config */  in nxp_mrt_isr()
261 		if (config->data[i]->cb) {  in nxp_mrt_isr()
262 			config->data[i]->cb(config->channels[i], config->data[i]->user_data);  in nxp_mrt_isr()
279 /* Creates a device for a channel (needed for counter API) */
288 /* Creates a data struct for a channel device */
293 /* Initializes an element of the channel data pointer array */
298 /* Initializes an element of the channel device pointer array */
311 	/* Initialize all the data structs for active channels */		\
324 	/* Create all the channel/counter devices */				\
327 	/* This channel device array is needed by the module device ISR */	\
338 			GENMASK(DT_INST_PROP(n, num_bits) - 1, 0),		\