| /* |
| * Copyright (c) 2018-2019 Nordic Semiconductor ASA |
| * |
| * SPDX-License-Identifier: Apache-2.0 |
| */ |
| |
| /* Structure used to double buffer pointers of AD Data PDU buffer. |
| * The first and last members are used to make modification to AD data to be |
| * context safe. Thread always appends or updates the buffer pointed to |
| * the array element indexed by the member last. |
| * LLL in the ISR context, checks, traverses to the valid pointer indexed |
| * by the member first, such that the buffer is the latest committed by |
| * the thread context. |
| */ |
| struct lll_adv_pdu { |
| uint8_t volatile first; |
| uint8_t last; |
| uint8_t *pdu[DOUBLE_BUFFER_SIZE]; |
| #if defined(CONFIG_BT_CTLR_ADV_EXT_PDU_EXTRA_DATA_MEMORY) |
| /* This is a storage for LLL configuration that may be |
| * changed while LLL advertising role is started. |
| * Also it makes the configuration data to be in sync |
| * with extended advertising PDU e.g. CTE TX configuration |
| * and CTEInfo field. |
| */ |
| void *extra_data[DOUBLE_BUFFER_SIZE]; |
| #endif /* CONFIG_BT_CTLR_ADV_EXT_PDU_EXTRA_DATA_MEMORY */ |
| }; |
