89 lines
2.9 KiB
C
89 lines
2.9 KiB
C
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/*
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* Copyright (c) 2015, The Linux Foundation. All rights reserved.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 and
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* only version 2 as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* Process Domain Service Locator API header
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*/
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#ifndef _SERVICE_LOCATOR_H
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#define _SERVICE_LOCATOR_H
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#define QMI_SERVREG_LOC_NAME_LENGTH_V01 64
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#define QMI_SERVREG_LOC_LIST_LENGTH_V01 32
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/*
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* @name: The full process domain path for a process domain which provides
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* a particular service
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* @instance_id: The QMI instance id corresponding to the root process
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* domain which is responsible for notifications for this
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* process domain
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* @service_data_valid: Indicates if service_data field has valid data
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* @service_data: Optional service data provided by the service locator
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*/
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struct servreg_loc_entry_v01 {
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char name[QMI_SERVREG_LOC_NAME_LENGTH_V01 + 1];
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uint32_t instance_id;
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uint8_t service_data_valid;
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uint32_t service_data;
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};
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/*
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* @client_name: Name of the client calling the api
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* @service_name: Name of the service for which the list of process domains
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* is requested
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* @total_domains: Length of the process domain list
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* @db_rev_count: Process domain list database revision number
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* @domain_list: List of process domains providing the service
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*/
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struct pd_qmi_client_data {
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char client_name[QMI_SERVREG_LOC_NAME_LENGTH_V01 + 1];
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char service_name[QMI_SERVREG_LOC_NAME_LENGTH_V01 + 1];
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int total_domains;
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int db_rev_count;
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struct servreg_loc_entry_v01 *domain_list;
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};
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#if defined(CONFIG_MSM_SERVICE_LOCATOR)
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/*
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* Use this api to request information regarding the process domains on which
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* a particular service runs. The client name and the service name inside the
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* pd_qmi_client_data structure need to be filled in by the client calling the
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* api. The total domains, db revision and the domain list will be filled in
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* by the service locator.
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* Returns 0 on success; otherwise a value < 0 if no valid subsystem is found.
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*/
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int get_service_location(struct pd_qmi_client_data *data);
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/*
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* Use this api to request information regarding the subsystem the process
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* domain runs on.
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* @pd_path: The name field from inside the servreg_loc_entry that one
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* gets back using the get_processdomains api.
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* Returns 0 on success; otherwise a value < 0 if no valid subsystem is found.
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*/
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int find_subsys(const char *pd_path, char *subsys);
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#else
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static inline int get_service_location(struct pd_qmi_client_data *data)
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{
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return 0;
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}
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static inline int find_subsys(const char *pd_path, const char *subsys)
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{
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return 0;
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}
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#endif /* CONFIG_MSM_SERVICE_LOCATOR */
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#endif
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