/*
 * Copyright (c) 2017-2019 Nordic Semiconductor ASA
 *
 * SPDX-License-Identifier: Apache-2.0
 */

/* Macro to convert time in us to connection interval units */
#define RADIO_CONN_EVENTS(x, y) ((u16_t)(((x) + (y) - 1) / (y)))

/* Macro to return PDU time */
#if defined(CONFIG_BT_CTLR_PHY_CODED)
#define PKT_US(octets, phy) \
	(((phy) & BIT(2)) ? \
	 (80 + 256 + 16 + 24 + ((((2 + (octets) + 4) * 8) + 24 + 3) * 8)) : \
	 (((octets) + 14) * 8 / BIT(((phy) & 0x03) >> 1)))
#else /* !CONFIG_BT_CTLR_PHY_CODED */
#define PKT_US(octets, phy) \
	(((octets) + 14) * 8 / BIT(((phy) & 0x03) >> 1))
#endif /* !CONFIG_BT_CTLR_PHY_CODED */

struct ll_conn *ll_conn_acquire(void);
void ll_conn_release(struct ll_conn *conn);
u16_t ll_conn_handle_get(struct ll_conn *conn);
struct ll_conn *ll_conn_get(u16_t handle);
struct ll_conn *ll_connected_get(u16_t handle);
int ull_conn_init(void);
int ull_conn_reset(void);
u8_t ull_conn_chan_map_cpy(u8_t *chan_map);
void ull_conn_chan_map_set(u8_t *chan_map);
u16_t ull_conn_default_tx_octets_get(void);
u16_t ull_conn_default_tx_time_get(void);
u8_t ull_conn_default_phy_tx_get(void);
u8_t ull_conn_default_phy_rx_get(void);
void ull_conn_setup(memq_link_t *link, struct node_rx_hdr *rx);
int ull_conn_rx(memq_link_t *link, struct node_rx_pdu **rx);
int ull_conn_llcp(struct ll_conn *conn, u32_t ticks_at_expire, u16_t lazy);
void ull_conn_done(struct node_rx_event_done *done);
void ull_conn_tx_demux(u8_t count);
void ull_conn_tx_lll_enqueue(struct ll_conn *conn, u8_t count);
void ull_conn_link_tx_release(void *link);
u8_t ull_conn_ack_last_idx_get(void);
memq_link_t *ull_conn_ack_peek(u8_t *ack_last, u16_t *handle,
			       struct node_tx **tx);
memq_link_t *ull_conn_ack_by_last_peek(u8_t last, u16_t *handle,
				       struct node_tx **tx);
void *ull_conn_ack_dequeue(void);
void ull_conn_lll_tx_flush(void *param);
void ull_conn_tx_ack(struct ll_conn *conn, memq_link_t *link,
		     struct node_tx *tx);
u8_t ull_conn_llcp_req(void *conn);