9  * @brief USB-C Power Policy Engine (PE)
32 	struct policy_engine *pe = data->pe;  in pe_src_init()  local
38 	pe->snk_request_reply = SNK_REQUEST_REJECT;  in pe_src_init()
41 	usbc_timer_init(&pe->pd_t_typec_send_source_cap, PD_T_TYPEC_SEND_SOURCE_CAP_MIN_MS);  in pe_src_init()
42 	usbc_timer_init(&pe->pd_t_ps_hard_reset, PD_T_PS_HARD_RESET_MAX_MS);  in pe_src_init()
54 	struct policy_engine *pe = data->pe;  in source_dpm_requests()  local
56 	if (pe->dpm_request == REQUEST_GET_SNK_CAPS) {  in source_dpm_requests()
57 		atomic_set_bit(pe->flags, PE_FLAGS_DPM_INITIATED_AMS);  in source_dpm_requests()
60 	} else if (pe->dpm_request == REQUEST_PE_GOTO_MIN) {  in source_dpm_requests()
61 		atomic_set_bit(pe->flags, PE_FLAGS_DPM_INITIATED_AMS);  in source_dpm_requests()
72 static void send_src_caps(struct policy_engine *pe)  in send_src_caps()  argument
74 	const struct device *dev = pe->dev;  in send_src_caps()
97 	struct policy_engine *pe = (struct policy_engine *)obj;  in pe_src_startup_entry()  local
98 	const struct device *dev = pe->dev;  in pe_src_startup_entry()
103 	pe->caps_counter = 0;  in pe_src_startup_entry()
109 	pe->power_role = TC_ROLE_SOURCE;  in pe_src_startup_entry()
112 	atomic_clear_bit(pe->flags, PE_FLAGS_EXPLICIT_CONTRACT);  in pe_src_startup_entry()
119 	struct policy_engine *pe = (struct policy_engine *)obj;  in pe_src_startup_run()  local
120 	const struct device *dev = pe->dev;  in pe_src_startup_run()
136 	struct policy_engine *pe = (struct policy_engine *)obj;  in pe_src_discovery_entry()  local
144 	usbc_timer_start(&pe->pd_t_typec_send_source_cap);  in pe_src_discovery_entry()
149 	struct policy_engine *pe = (struct policy_engine *)obj;  in pe_src_discovery_run()  local
150 	const struct device *dev = pe->dev;  in pe_src_discovery_run()
157 	if (usbc_timer_expired(&pe->pd_t_typec_send_source_cap)) {  in pe_src_discovery_run()
158 		if (pe->caps_counter <= PD_N_CAPS_COUNT) {  in pe_src_discovery_run()
168 	struct policy_engine *pe = (struct policy_engine *)obj;  in pe_src_discovery_exit()  local
170 	usbc_timer_stop(&pe->pd_t_typec_send_source_cap);  in pe_src_discovery_exit()
178 	struct policy_engine *pe = (struct policy_engine *)obj;  in pe_src_send_capabilities_entry()  local
181 	send_src_caps(pe);  in pe_src_send_capabilities_entry()
183 	pe->caps_counter++;  in pe_src_send_capabilities_entry()
185 	pe->submachine = SM_WAIT_FOR_TX;  in pe_src_send_capabilities_entry()
192 	struct policy_engine *pe = (struct policy_engine *)obj;  in pe_src_send_capabilities_run()  local
193 	const struct device *dev = pe->dev;  in pe_src_send_capabilities_run()
197 	switch (pe->submachine) {  in pe_src_send_capabilities_run()
205 		if (atomic_test_and_clear_bit(pe->flags, PE_FLAGS_TX_COMPLETE)) {  in pe_src_send_capabilities_run()
206 			usbc_timer_stop(&pe->pd_t_no_response);  in pe_src_send_capabilities_run()
207 			pe->hard_reset_counter = 0;  in pe_src_send_capabilities_run()
208 			pe->caps_counter = 0;  in pe_src_send_capabilities_run()
209 			pe->submachine = SM_WAIT_FOR_RX;  in pe_src_send_capabilities_run()
218 		else if ((atomic_test_and_clear_bit(pe->flags, PE_FLAGS_MSG_XMIT_ERROR) ||  in pe_src_send_capabilities_run()
219 			atomic_test_and_clear_bit(pe->flags, PE_FLAGS_MSG_DISCARDED))  in pe_src_send_capabilities_run()
220 			&& (atomic_test_bit(pe->flags, PE_FLAGS_PD_CONNECTED) == false)) {  in pe_src_send_capabilities_run()
229 		if (atomic_test_and_clear_bit(pe->flags, PE_FLAGS_MSG_RECEIVED)) {  in pe_src_send_capabilities_run()
244 		else if (usbc_timer_expired(&pe->pd_t_sender_response)) {  in pe_src_send_capabilities_run()
256 	struct policy_engine *pe = (struct policy_engine *)obj;  in pe_src_negotiate_capability_entry()  local
257 	const struct device *dev = pe->dev;  in pe_src_negotiate_capability_entry()
264 	pe->snk_request = *(uint32_t *)prl_rx->emsg.data;  in pe_src_negotiate_capability_entry()
270 	pe->snk_request_reply =  in pe_src_negotiate_capability_entry()
271 		policy_check_sink_request(dev, pe->snk_request);  in pe_src_negotiate_capability_entry()
278 	if (pe->snk_request_reply == SNK_REQUEST_VALID) {  in pe_src_negotiate_capability_entry()
297 	struct policy_engine *pe = (struct policy_engine *)obj;  in pe_src_transition_supply_entry()  local
298 	const struct device *dev = pe->dev;  in pe_src_transition_supply_entry()
308 	if (pe->snk_request_reply == SNK_REQUEST_VALID) {  in pe_src_transition_supply_entry()
323 	struct policy_engine *pe = (struct policy_engine *)obj;  in pe_src_transition_supply_run()  local
324 	const struct device *dev = pe->dev;  in pe_src_transition_supply_run()
331 	if (atomic_test_bit(pe->flags, PE_FLAGS_TX_COMPLETE)) {  in pe_src_transition_supply_run()
341 	else if (atomic_test_bit(pe->flags, PE_FLAGS_PROTOCOL_ERROR)) {  in pe_src_transition_supply_run()
348 	struct policy_engine *pe = (struct policy_engine *)obj;  in pe_src_transition_supply_exit()  local
349 	const struct device *dev = pe->dev;  in pe_src_transition_supply_exit()
352 	if (pe->snk_request_reply == SNK_REQUEST_VALID) {  in pe_src_transition_supply_exit()
354 		pe->snk_request_reply = SNK_REQUEST_REJECT;  in pe_src_transition_supply_exit()
358 		atomic_set_bit(pe->flags, PE_FLAGS_EXPLICIT_CONTRACT);  in pe_src_transition_supply_exit()
360 		pe->present_contract = pe->snk_request;  in pe_src_transition_supply_exit()
369 	struct policy_engine *pe = (struct policy_engine *)obj;  in pe_src_ready_entry()  local
370 	const struct device *dev = pe->dev;  in pe_src_ready_entry()
383 	if (atomic_test_and_clear_bit(pe->flags,  in pe_src_ready_entry()
391 	struct policy_engine *pe = (struct policy_engine *)obj;  in pe_src_ready_run()  local
392 	const struct device *dev = pe->dev;  in pe_src_ready_run()
397 	if (atomic_test_and_clear_bit(pe->flags, PE_FLAGS_MSG_RECEIVED)) {  in pe_src_ready_run()
477 	struct policy_engine *pe = (struct policy_engine *)obj;  in pe_src_ready_exit()  local
478 	const struct device *dev = pe->dev;  in pe_src_ready_exit()
507 	struct policy_engine *pe = (struct policy_engine *)obj;  in pe_src_transition_to_default_entry()  local
508 	const struct device *dev = pe->dev;  in pe_src_transition_to_default_entry()
523 	pe->data_role = TC_ROLE_DFP;  in pe_src_transition_to_default_entry()
529 	struct policy_engine *pe = (struct policy_engine *)obj;  in pe_src_transition_to_default_run()  local
530 	const struct device *dev = pe->dev;  in pe_src_transition_to_default_run()
545 	struct policy_engine *pe = (struct policy_engine *)obj;  in pe_src_transition_to_default_exit()  local
546 	const struct device *dev = pe->dev;  in pe_src_transition_to_default_exit()
555 	 *	 PE that the Power Supply is at the default level.  in pe_src_transition_to_default_exit()
565 	struct policy_engine *pe = (struct policy_engine *)obj;  in pe_src_capability_response_entry()  local
566 	const struct device *dev = pe->dev;  in pe_src_capability_response_entry()
577 	if (pe->snk_request_reply == SNK_REQUEST_REJECT) {  in pe_src_capability_response_entry()
592 	struct policy_engine *pe = (struct policy_engine *)obj;  in pe_src_capability_response_run()  local
593 	const struct device *dev = pe->dev;  in pe_src_capability_response_run()
596 	if (!atomic_test_and_clear_bit(pe->flags, PE_FLAGS_TX_COMPLETE)) {  in pe_src_capability_response_run()
607 	if (atomic_test_bit(pe->flags, PE_FLAGS_EXPLICIT_CONTRACT) &&  in pe_src_capability_response_run()
608 			((pe->snk_request_reply == SNK_REQUEST_REJECT &&  in pe_src_capability_response_run()
609 			policy_present_contract_is_valid(dev, pe->present_contract)) ||  in pe_src_capability_response_run()
610 			(pe->snk_request_reply == SNK_REQUEST_WAIT))) {  in pe_src_capability_response_run()
620 	else if (atomic_test_bit(pe->flags, PE_FLAGS_EXPLICIT_CONTRACT) &&  in pe_src_capability_response_run()
621 			policy_present_contract_is_valid(dev, pe->present_contract) == false) {  in pe_src_capability_response_run()
658 	struct policy_engine *pe = (struct policy_engine *)obj;  in pe_src_hard_reset_parent_entry()  local
660 	pe->submachine = SM_HARD_RESET_START;  in pe_src_hard_reset_parent_entry()
665 	struct policy_engine *pe = (struct policy_engine *)obj;  in pe_src_hard_reset_parent_run()  local
666 	const struct device *dev = pe->dev;  in pe_src_hard_reset_parent_run()
668 	switch (pe->submachine) {  in pe_src_hard_reset_parent_run()
675 		usbc_timer_start(&pe->pd_t_no_response);  in pe_src_hard_reset_parent_run()
678 		usbc_timer_start(&pe->pd_t_ps_hard_reset);  in pe_src_hard_reset_parent_run()
680 		pe->submachine = SM_HARD_RESET_WAIT;  in pe_src_hard_reset_parent_run()
688 		if (usbc_timer_expired(&pe->pd_t_ps_hard_reset)) {  in pe_src_hard_reset_parent_run()
697 	struct policy_engine *pe = (struct policy_engine *)obj;  in pe_src_hard_reset_parent_exit()  local
700 	usbc_timer_stop(&pe->pd_t_ps_hard_reset);  in pe_src_hard_reset_parent_exit()
708 	struct policy_engine *pe = (struct policy_engine *)obj;  in pe_src_hard_reset_entry()  local
709 	const struct device *dev = pe->dev;  in pe_src_hard_reset_entry()