mirror of
https://github.com/ByteWelder/Tactility.git
synced 2026-10-17 10:55:06 +00:00
6e437d3288
**New Features** * Added location services with GPS and network-based positioning, approximate or precise accuracy, and live status updates. * Added a Location Settings app to view status, control location access and accuracy, and manage GPS devices. * Added location choices during device setup and a location toggle in the system menu. * Added support for thread stacks in external memory when available, with fallback to existing memory options. **Improvements** * Wi-Fi and Bluetooth enabled states are saved when changed and applied at startup; separate “Enable on boot” switches are no longer shown in their management screens. * GPS setup can stop promptly when interrupted. * Improved device removal handling during startup and while references are outstanding. * Updated several device listings to no longer be marked as incubating.
80 lines
2.6 KiB
C
80 lines
2.6 KiB
C
// SPDX-License-Identifier: Apache-2.0
|
|
#pragma once
|
|
|
|
#include <location/location.h>
|
|
|
|
#include <tactility/freertos/freertos.h>
|
|
|
|
#include <stdbool.h>
|
|
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif
|
|
|
|
/**
|
|
* Interface between the location service and a location provider. Not part of the app SDK.
|
|
*/
|
|
|
|
/** The service, as seen by a provider */
|
|
struct LocationHost;
|
|
|
|
struct LocationProviderApi {
|
|
/** Unique id, at most LOCATION_PROVIDER_ID_MAX_LENGTH characters */
|
|
const char* id;
|
|
|
|
/**
|
|
* A fallback provider (e.g. IP geolocation) is only used while no other provider reported a fix in the last
|
|
* 2 minutes. It should only work when location_host_needs_fallback() returns true.
|
|
*/
|
|
bool fallback;
|
|
|
|
/**
|
|
* Start the provider. Called on the service's worker task while the service runs and has subscriptions.
|
|
* It must not block: the work happens on the provider's own task.
|
|
* @return the provider state, NULL on failure
|
|
*/
|
|
void* (*create)(struct LocationHost* host);
|
|
|
|
/** Ask the provider to stop. It must not block. */
|
|
void (*request_stop)(void* provider);
|
|
|
|
/**
|
|
* Wait at most @a timeout for the provider to stop and release its resources.
|
|
* It must not report anymore once this returned true. The provider is only created again after that.
|
|
* @return true when stopped
|
|
*/
|
|
bool (*wait_stopped)(void* provider, TickType_t timeout);
|
|
};
|
|
|
|
/** Maximum number of registered providers */
|
|
#define LOCATION_PROVIDER_MAX_COUNT 4
|
|
|
|
/**
|
|
* Register a provider. Usually called from the provider module's start().
|
|
* @retval ERROR_ALREADY_EXISTS when a provider with the same id is registered
|
|
* @retval ERROR_RESOURCE when LOCATION_PROVIDER_MAX_COUNT providers are registered
|
|
*/
|
|
error_t location_provider_register(const struct LocationProviderApi* api);
|
|
|
|
/** @retval ERROR_NOT_FOUND when @a api is not registered */
|
|
error_t location_provider_unregister(const struct LocationProviderApi* api);
|
|
|
|
/**
|
|
* Report a new fix. Can be called from any task.
|
|
* The service sets the `provider` and `uptime_ms` fields.
|
|
*/
|
|
void location_host_report(struct LocationHost* host, const struct Location* location);
|
|
|
|
/**
|
|
* Reduce a fix to LOCATION_PRECISION_APPROXIMATE: the position snaps to a grid and only position and time remain.
|
|
* Providers that can report precise fixes apply this when location_get_precision() is LOCATION_PRECISION_APPROXIMATE.
|
|
*/
|
|
void location_make_approximate(struct Location* location);
|
|
|
|
/** @return true when no provider that isn't a fallback reported a fix in the last 2 minutes */
|
|
bool location_host_needs_fallback(void);
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|