4  * SPDX-License-Identifier: Apache-2.0
15 #include <zephyr/dt-bindings/clock/mcux_lpc_syscon_clock.h>
29 	enum pwm_ctimer_channel_role role;  member
53 static bool mcux_ctimer_pwm_is_period_valid(struct pwm_mcux_ctimer_data *data,  in mcux_ctimer_pwm_is_period_valid()  argument
58 	if (data->channel_states[current_period_channel].cycles == new_period_cycles) {  in mcux_ctimer_pwm_is_period_valid()
66 	if (data->num_active_pulse_chans == 0) {  in mcux_ctimer_pwm_is_period_valid()
70 	if (data->num_active_pulse_chans > 1) {  in mcux_ctimer_pwm_is_period_valid()
78 	if (data->channel_states[new_pulse_channel].role != PWM_CTIMER_CHANNEL_ROLE_PULSE) {  in mcux_ctimer_pwm_is_period_valid()
92 static int mcux_ctimer_pwm_select_period_channel(struct pwm_mcux_ctimer_data *data,  in mcux_ctimer_pwm_select_period_channel()  argument
97 	if (data->is_period_channel_set) {  in mcux_ctimer_pwm_select_period_channel()
98 		if (!mcux_ctimer_pwm_is_period_valid(data, new_pulse_channel, new_period_cycles,  in mcux_ctimer_pwm_select_period_channel()
99 						     data->current_period_channel)) {  in mcux_ctimer_pwm_select_period_channel()
102 			return -EINVAL;  in mcux_ctimer_pwm_select_period_channel()
105 		*ret_period_channel = data->current_period_channel;  in mcux_ctimer_pwm_select_period_channel()
115 	while (data->channel_states[*ret_period_channel].role != PWM_CTIMER_CHANNEL_ROLE_NONE) {  in mcux_ctimer_pwm_select_period_channel()
118 			return -EBUSY;  in mcux_ctimer_pwm_select_period_channel()
127 static void mcux_ctimer_pwm_update_state(struct pwm_mcux_ctimer_data *data, uint32_t pulse_channel,  in mcux_ctimer_pwm_update_state()  argument
131 	if (data->channel_states[pulse_channel].role != PWM_CTIMER_CHANNEL_ROLE_PULSE) {  in mcux_ctimer_pwm_update_state()
132 		data->num_active_pulse_chans++;  in mcux_ctimer_pwm_update_state()
135 	data->channel_states[pulse_channel].role = PWM_CTIMER_CHANNEL_ROLE_PULSE;  in mcux_ctimer_pwm_update_state()
136 	data->channel_states[pulse_channel].cycles = pulse_cycles;  in mcux_ctimer_pwm_update_state()
138 	data->is_period_channel_set = true;  in mcux_ctimer_pwm_update_state()
139 	data->current_period_channel = period_channel;  in mcux_ctimer_pwm_update_state()
140 	data->channel_states[period_channel].role = PWM_CTIMER_CHANNEL_ROLE_PERIOD;  in mcux_ctimer_pwm_update_state()
141 	data->channel_states[period_channel].cycles = period_cycles;  in mcux_ctimer_pwm_update_state()
148 	const struct pwm_mcux_ctimer_config *config = dev->config;  in mcux_ctimer_pwm_set_cycles()
149 	struct pwm_mcux_ctimer_data *data = dev->data;  in mcux_ctimer_pwm_set_cycles()  local
150 	uint32_t period_channel = data->current_period_channel;  in mcux_ctimer_pwm_set_cycles()
156 		return -EINVAL;  in mcux_ctimer_pwm_set_cycles()
161 		return -ENOTSUP;  in mcux_ctimer_pwm_set_cycles()
164 	ret = mcux_ctimer_pwm_select_period_channel(data, pulse_channel, period_cycles,  in mcux_ctimer_pwm_set_cycles()
176 			pulse_cycles = period_cycles - pulse_cycles;  in mcux_ctimer_pwm_set_cycles()
180 	status = CTIMER_SetupPwmPeriod(config->base, period_channel, pulse_channel, period_cycles,  in mcux_ctimer_pwm_set_cycles()
184 		return -EIO;  in mcux_ctimer_pwm_set_cycles()
186 	mcux_ctimer_pwm_update_state(data, pulse_channel, pulse_cycles, period_channel,  in mcux_ctimer_pwm_set_cycles()
189 	CTIMER_StartTimer(config->base);  in mcux_ctimer_pwm_set_cycles()
196 	const struct pwm_mcux_ctimer_config *config = dev->config;  in mcux_ctimer_pwm_get_cycles_per_sec()
203 	err = clock_control_get_rate(config->clock_control, config->clock_id, (uint32_t *)cycles);  in mcux_ctimer_pwm_get_cycles_per_sec()
209 	if (config->prescale > 0) {  in mcux_ctimer_pwm_get_cycles_per_sec()
210 		*cycles /= config->prescale;  in mcux_ctimer_pwm_get_cycles_per_sec()
218 	const struct pwm_mcux_ctimer_config *config = dev->config;  in mcux_ctimer_pwm_init()
222 	err = pinctrl_apply_state(config->pincfg, PINCTRL_STATE_DEFAULT);  in mcux_ctimer_pwm_init()
227 	if (config->period_channel >= CHANNEL_COUNT) {  in mcux_ctimer_pwm_init()
228 		LOG_ERR("invalid period_channel: %d. must be less than %d", config->period_channel,  in mcux_ctimer_pwm_init()
230 		return -EINVAL;  in mcux_ctimer_pwm_init()
234 	pwm_config.prescale = config->prescale;  in mcux_ctimer_pwm_init()
236 	CTIMER_Init(config->base, &pwm_config);  in mcux_ctimer_pwm_init()
252 				[kCTIMER_Match_0] = {.role = PWM_CTIMER_CHANNEL_ROLE_NONE,         \
254 				[kCTIMER_Match_1] = {.role = PWM_CTIMER_CHANNEL_ROLE_NONE,         \
256 				[kCTIMER_Match_2] = {.role = PWM_CTIMER_CHANNEL_ROLE_NONE,         \
258 				[kCTIMER_Match_3] = {.role = PWM_CTIMER_CHANNEL_ROLE_NONE,         \