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ffa3996a5e
* clang-format: AllowShortEnumsOnASingleLine: false * clang-format: InsertNewlineAtEOF: true * clang-format: Standard: c++20 * clang-format: AlignConsecutiveBitFields * clang-format: AlignConsecutiveMacros * clang-format: RemoveParentheses: ReturnStatement * clang-format: RemoveSemicolon: true * Restored RemoveParentheses: Leave, retained general changes for it * formatting: fixed logging TAGs * Formatting update for dev Co-authored-by: あく <alleteam@gmail.com>
111 lines
3.4 KiB
C
111 lines
3.4 KiB
C
#pragma once
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#include <stdint.h>
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#include <stdbool.h>
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#include <stdio.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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#include <ble/core/auto/ble_types.h>
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/* Callback signature for getting characteristic data
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* Is called when characteristic is created to get max data length. Data ptr is NULL in this case
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* The result is passed to aci_gatt_add_char as "Char_Value_Length"
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* For updates, called with a context - see flipper_gatt_characteristic_update
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* Returns true if *data ownership is transferred to the caller and will be freed */
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typedef bool (
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*cbBleGattCharacteristicData)(const void* context, const uint8_t** data, uint16_t* data_len);
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/* Used to specify the type of data for a characteristic - constant or callback-based */
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typedef enum {
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FlipperGattCharacteristicDataFixed,
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FlipperGattCharacteristicDataCallback,
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} BleGattCharacteristicDataType;
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typedef struct {
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Char_Desc_Uuid_t uuid;
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struct {
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cbBleGattCharacteristicData fn;
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const void* context;
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} data_callback;
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uint8_t uuid_type;
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uint8_t max_length;
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uint8_t security_permissions;
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uint8_t access_permissions;
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uint8_t gatt_evt_mask;
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uint8_t is_variable;
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} BleGattCharacteristicDescriptorParams;
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/* Describes a single characteristic, providing data or callbacks to get data */
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typedef struct {
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const char* name;
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BleGattCharacteristicDescriptorParams* descriptor_params;
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union {
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struct {
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const uint8_t* ptr;
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uint16_t length;
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} fixed;
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struct {
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cbBleGattCharacteristicData fn;
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const void* context;
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} callback;
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} data;
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Char_UUID_t uuid;
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// Some packed bitfields to save space
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BleGattCharacteristicDataType data_prop_type : 2;
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uint8_t is_variable : 2;
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uint8_t uuid_type : 2;
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uint8_t char_properties;
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uint8_t security_permissions;
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uint8_t gatt_evt_mask;
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} BleGattCharacteristicParams;
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_Static_assert(
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sizeof(BleGattCharacteristicParams) == 36,
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"BleGattCharacteristicParams size must be 36 bytes");
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typedef struct {
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const BleGattCharacteristicParams* characteristic;
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uint16_t handle;
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uint16_t descriptor_handle;
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} BleGattCharacteristicInstance;
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/* Initialize a characteristic instance; copies the characteristic descriptor
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* into the instance */
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void ble_gatt_characteristic_init(
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uint16_t svc_handle,
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const BleGattCharacteristicParams* char_descriptor,
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BleGattCharacteristicInstance* char_instance);
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/* Delete a characteristic instance; frees the copied characteristic
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* descriptor from the instance */
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void ble_gatt_characteristic_delete(
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uint16_t svc_handle,
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BleGattCharacteristicInstance* char_instance);
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/* Update a characteristic instance; if source==NULL, uses the data from
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* the characteristic:
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* - For fixed data, fixed.ptr is used as the source if source==NULL
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* - For callback-based data, collback.context is passed as the context
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* if source==NULL
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*/
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bool ble_gatt_characteristic_update(
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uint16_t svc_handle,
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BleGattCharacteristicInstance* char_instance,
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const void* source);
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bool ble_gatt_service_add(
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uint8_t Service_UUID_Type,
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const Service_UUID_t* Service_UUID,
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uint8_t Service_Type,
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uint8_t Max_Attribute_Records,
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uint16_t* Service_Handle);
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bool ble_gatt_service_delete(uint16_t svc_handle);
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#ifdef __cplusplus
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}
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#endif
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