5a6ed86d46
The SYNC_STAT_READY_OR_CONT_SCAN state into two: SYNC_STAT_READY and SYNC_STAT_CONT_SCAN. The connected state was used for two cases: - synchronization with periodic advertising is already established, - CTE type is wrong but periodic advertising list is used to filter synchronized devices. In the past states were connected because there was only one difference between them. In case of sync already established, Controller generated sync report notification to host.The sync was not terminated when Controller was about to continue search for other periodic advertiser. The state was split because now Controller terminates sync ticker and continues search for other periodic advertised. The split improves readability and makes code easier to understand. Signed-off-by: Piotr Pryga <piotr.pryga@nordicsemi.no>
69 lines
1.7 KiB
C
69 lines
1.7 KiB
C
/*
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* Copyright (c) 2020 Nordic Semiconductor ASA
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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/* Periodic advertisements synchronization status. */
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enum sync_status {
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SYNC_STAT_ALLOWED,
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SYNC_STAT_READY,
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SYNC_STAT_CONT_SCAN,
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SYNC_STAT_TERM
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};
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struct lll_sync {
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struct lll_hdr hdr;
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uint8_t access_addr[4];
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uint8_t crc_init[3];
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uint8_t phy:3;
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/* Bitmask providing not allowed types of CTE. */
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uint8_t cte_type:5;
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/* The member is required for filtering by CTE type. If filtering policy is disabled then
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* synchronization is terminated for periodic advertisements with wrong CTE type.
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*/
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uint8_t filter_policy:1;
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uint8_t is_rx_enabled:1;
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uint8_t is_aux_sched:1;
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#if defined(CONFIG_BT_CTLR_SYNC_ISO)
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uint8_t sca:3;
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#endif /* CONFIG_BT_CTLR_SYNC_ISO */
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uint16_t skip_prepare;
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uint16_t skip_event;
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uint16_t event_counter;
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uint16_t data_chan_id;
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struct {
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uint8_t data_chan_map[PDU_CHANNEL_MAP_SIZE];
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uint8_t data_chan_count:6;
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} chm[DOUBLE_BUFFER_SIZE];
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uint8_t chm_first;
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uint8_t chm_last;
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uint16_t chm_instant;
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uint32_t window_widening_periodic_us;
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uint32_t window_widening_max_us;
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uint32_t window_widening_prepare_us;
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uint32_t window_widening_event_us;
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uint32_t window_size_event_us;
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/* used to store lll_aux when chain is being scanned */
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struct lll_scan_aux *volatile lll_aux;
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#if defined(CONFIG_BT_CTLR_DF_SCAN_CTE_RX)
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struct lll_df_sync df_cfg;
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#endif /* CONFIG_BT_CTLR_DF_SCAN_CTE_RX */
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};
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int lll_sync_init(void);
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int lll_sync_reset(void);
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void lll_sync_create_prepare(void *param);
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void lll_sync_prepare(void *param);
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enum sync_status lll_sync_cte_is_allowed(uint8_t cte_type_mask, uint8_t filter_policy,
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uint8_t rx_cte_time, uint8_t rx_cte_type);
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extern uint16_t ull_sync_lll_handle_get(struct lll_sync *lll);
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