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ull_adv.c
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ull_adv.c
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/*
* Copyright (c) 2016-2019 Nordic Semiconductor ASA
* Copyright (c) 2016 Vinayak Kariappa Chettimada
*
* SPDX-License-Identifier: Apache-2.0
*/
#include <string.h>
#include <zephyr.h>
#include <bluetooth/hci.h>
#include "hal/ccm.h"
#include "hal/ticker.h"
#include "util/util.h"
#include "util/memq.h"
#include "util/mayfly.h"
#include "ticker/ticker.h"
#include "pdu.h"
#include "ll.h"
#include "ll_feat.h"
#include "lll.h"
#include "lll_vendor.h"
#include "lll_clock.h"
#include "lll_adv.h"
#include "lll_scan.h"
#include "lll_conn.h"
#include "lll_internal.h"
#include "lll_filter.h"
#include "ull_adv_types.h"
#include "ull_scan_types.h"
#include "ull_conn_types.h"
#include "ull_filter.h"
#include "ull_adv_internal.h"
#include "ull_scan_internal.h"
#include "ull_conn_internal.h"
#include "ull_internal.h"
#define LOG_MODULE_NAME bt_ctlr_llsw_ull_adv
#include "common/log.h"
#include <soc.h>
#include "hal/debug.h"
inline struct ll_adv_set *ull_adv_set_get(u16_t handle);
inline u16_t ull_adv_handle_get(struct ll_adv_set *adv);
static int init_reset(void);
static inline struct ll_adv_set *is_disabled_get(u16_t handle);
static void ticker_cb(u32_t ticks_at_expire, u32_t remainder, u16_t lazy,
void *param);
static void ticker_op_update_cb(u32_t status, void *params);
#if defined(CONFIG_BT_PERIPHERAL)
static void ticker_stop_cb(u32_t ticks_at_expire, u32_t remainder, u16_t lazy,
void *param);
static void ticker_op_stop_cb(u32_t status, void *params);
static void disabled_cb(void *param);
static inline void conn_release(struct ll_adv_set *adv);
#endif /* CONFIG_BT_PERIPHERAL */
static inline u8_t disable(u16_t handle);
static struct ll_adv_set ll_adv[BT_CTLR_ADV_MAX];
#if defined(CONFIG_BT_CTLR_ADV_EXT)
u8_t ll_adv_params_set(u8_t handle, u16_t evt_prop, u32_t interval,
u8_t adv_type, u8_t own_addr_type,
u8_t direct_addr_type, u8_t const *const direct_addr,
u8_t chan_map, u8_t filter_policy, u8_t *tx_pwr,
u8_t phy_p, u8_t skip, u8_t phy_s, u8_t sid, u8_t sreq)
{
u8_t const pdu_adv_type[] = {PDU_ADV_TYPE_ADV_IND,
PDU_ADV_TYPE_DIRECT_IND,
PDU_ADV_TYPE_SCAN_IND,
PDU_ADV_TYPE_NONCONN_IND,
PDU_ADV_TYPE_DIRECT_IND,
PDU_ADV_TYPE_EXT_IND};
#else /* !CONFIG_BT_CTLR_ADV_EXT */
u8_t ll_adv_params_set(u16_t interval, u8_t adv_type,
u8_t own_addr_type, u8_t direct_addr_type,
u8_t const *const direct_addr, u8_t chan_map,
u8_t filter_policy)
{
u8_t const pdu_adv_type[] = {PDU_ADV_TYPE_ADV_IND,
PDU_ADV_TYPE_DIRECT_IND,
PDU_ADV_TYPE_SCAN_IND,
PDU_ADV_TYPE_NONCONN_IND,
PDU_ADV_TYPE_DIRECT_IND};
u16_t const handle = 0;
#endif /* !CONFIG_BT_CTLR_ADV_EXT */
struct ll_adv_set *adv;
struct pdu_adv *pdu;
adv = is_disabled_get(handle);
if (!adv) {
return BT_HCI_ERR_CMD_DISALLOWED;
}
#if defined(CONFIG_BT_CTLR_ADV_EXT)
/* TODO: check and fail (0x12, invalid HCI cmd param) if invalid
* evt_prop bits.
*/
adv->lll.phy_p = BIT(0);
/* extended */
if (adv_type > 0x04) {
/* legacy */
if (evt_prop & BIT(4)) {
u8_t const leg_adv_type[] = { 0x03, 0x04, 0x02, 0x00};
adv_type = leg_adv_type[evt_prop & 0x03];
/* high duty cycle directed */
if (evt_prop & BIT(3)) {
adv_type = 0x01;
}
} else {
/* - Connectable and scannable not allowed;
* - High duty cycle directed connectable not allowed
*/
if (((evt_prop & 0x03) == 0x03) ||
((evt_prop & 0x0C) == 0x0C)) {
return 0x12; /* invalid HCI cmd param */
}
adv_type = 0x05; /* PDU_ADV_TYPE_EXT_IND */
adv->lll.phy_p = phy_p;
}
}
#endif /* CONFIG_BT_CTLR_ADV_EXT */
/* remember params so that set adv/scan data and adv enable
* interface can correctly update adv/scan data in the
* double buffer between caller and controller context.
*/
/* Set interval for Undirected or Low Duty Cycle Directed Advertising */
if (adv_type != 0x01) {
adv->interval = interval;
} else {
adv->interval = 0;
}
adv->lll.chan_map = chan_map;
adv->lll.filter_policy = filter_policy;
/* update the "current" primary adv data */
pdu = lll_adv_data_peek(&adv->lll);
pdu->type = pdu_adv_type[adv_type];
pdu->rfu = 0;
if (IS_ENABLED(CONFIG_BT_CTLR_CHAN_SEL_2) &&
((pdu->type == PDU_ADV_TYPE_ADV_IND) ||
(pdu->type == PDU_ADV_TYPE_DIRECT_IND))) {
pdu->chan_sel = 1;
} else {
pdu->chan_sel = 0;
}
#if defined(CONFIG_BT_CTLR_PRIVACY)
adv->own_addr_type = own_addr_type;
if (adv->own_addr_type == BT_ADDR_LE_PUBLIC_ID ||
adv->own_addr_type == BT_ADDR_LE_RANDOM_ID) {
adv->id_addr_type = direct_addr_type;
memcpy(&adv->id_addr, direct_addr, BDADDR_SIZE);
}
#endif /* CONFIG_BT_CTLR_PRIVACY */
pdu->tx_addr = own_addr_type & 0x1;
pdu->rx_addr = 0;
if (pdu->type == PDU_ADV_TYPE_DIRECT_IND) {
pdu->rx_addr = direct_addr_type;
memcpy(&pdu->direct_ind.tgt_addr[0], direct_addr, BDADDR_SIZE);
pdu->len = sizeof(struct pdu_adv_direct_ind);
#if defined(CONFIG_BT_CTLR_ADV_EXT)
} else if (pdu->type == PDU_ADV_TYPE_EXT_IND) {
struct pdu_adv_com_ext_adv *p;
struct ext_adv_hdr _h, *h;
u8_t *_ptr, *ptr;
u8_t len;
p = (void *)&pdu->adv_ext_ind;
h = (void *)p->ext_hdr_adi_adv_data;
ptr = (u8_t *)h + sizeof(*h);
_ptr = ptr;
/* No ACAD and no AdvData */
p->ext_hdr_len = 0;
p->adv_mode = evt_prop & 0x03;
/* Zero-init header flags */
*(u8_t *)&_h = *(u8_t *)h;
*(u8_t *)h = 0;
/* AdvA flag */
if (_h.adv_addr) {
_ptr += BDADDR_SIZE;
}
if (!p->adv_mode &&
(!_h.aux_ptr ||
(!(evt_prop & BIT(5)) && (phy_p != BIT(2))))) {
/* TODO: optional on 1M with Aux Ptr */
h->adv_addr = 1;
/* NOTE: AdvA is filled at enable */
ptr += BDADDR_SIZE;
}
/* TODO: TargetA flag */
/* ADI flag */
if (_h.adi) {
h->adi = 1;
ptr += sizeof(struct ext_adv_adi);
}
/* AuxPtr flag */
if (_h.aux_ptr) {
h->aux_ptr = 1;
ptr += sizeof(struct ext_adv_aux_ptr);
}
/* No SyncInfo flag in primary channel PDU */
/* Tx Power flag */
if (evt_prop & BIT(6) &&
(!_h.aux_ptr || (phy_p != BIT(2)))) {
h->tx_pwr = 1;
ptr++;
}
/* Calc primary PDU len */
len = ptr - (u8_t *)p;
if (len > (offsetof(struct pdu_adv_com_ext_adv,
ext_hdr_adi_adv_data) + sizeof(*h))) {
p->ext_hdr_len = len -
offsetof(struct pdu_adv_com_ext_adv,
ext_hdr_adi_adv_data);
pdu->len = len;
} else {
pdu->len = offsetof(struct pdu_adv_com_ext_adv,
ext_hdr_adi_adv_data);
}
/* Start filling primary PDU payload based on flags */
/* No AdvData in primary channel PDU */
/* No ACAD in primary channel PDU */
/* Tx Power */
if (h->tx_pwr) {
u8_t _tx_pwr;
_tx_pwr = 0;
if (tx_pwr) {
if (*tx_pwr != 0x7F) {
_tx_pwr = *tx_pwr;
} else {
*tx_pwr = _tx_pwr;
}
}
ptr--;
*ptr = _tx_pwr;
}
/* No SyncInfo in primary channel PDU */
/* AuxPtr */
if (h->aux_ptr) {
struct ext_adv_aux_ptr *aux;
ptr -= sizeof(struct ext_adv_aux_ptr);
/* NOTE: Channel Index, CA, Offset Units and AUX Offset
* will be set in Advertiser Event.
*/
aux = (void *)ptr;
aux->phy = find_lsb_set(phy_s);
}
/* ADI */
if (h->adi) {
struct ext_adv_adi *adi;
ptr -= sizeof(struct ext_adv_adi);
/* NOTE: memcpy shall handle overlapping buffers */
memcpy(ptr, _ptr, sizeof(struct ext_adv_adi));
adi = (void *)ptr;
adi->sid = sid;
}
/* NOTE: TargetA, filled at enable and RPA timeout */
/* NOTE: AdvA, filled at enable and RPA timeout */
#endif /* CONFIG_BT_CTLR_ADV_EXT */
} else if (pdu->len == 0) {
pdu->len = BDADDR_SIZE;
}
/* update the current scan data */
pdu = lll_adv_scan_rsp_peek(&adv->lll);
pdu->type = PDU_ADV_TYPE_SCAN_RSP;
pdu->rfu = 0;
pdu->chan_sel = 0;
pdu->tx_addr = own_addr_type & 0x1;
pdu->rx_addr = 0;
if (pdu->len == 0) {
pdu->len = BDADDR_SIZE;
}
return 0;
}
#if defined(CONFIG_BT_CTLR_ADV_EXT)
u8_t ll_adv_data_set(u16_t handle, u8_t len, u8_t const *const data)
{
#else /* !CONFIG_BT_CTLR_ADV_EXT */
u8_t ll_adv_data_set(u8_t len, u8_t const *const data)
{
const u16_t handle = 0;
#endif /* !CONFIG_BT_CTLR_ADV_EXT */
struct ll_adv_set *adv;
struct pdu_adv *prev;
struct pdu_adv *pdu;
u8_t idx;
adv = ull_adv_set_get(handle);
if (!adv) {
return BT_HCI_ERR_CMD_DISALLOWED;
}
/* Dont update data if directed or extended advertising. */
prev = lll_adv_data_peek(&adv->lll);
if ((prev->type == PDU_ADV_TYPE_DIRECT_IND) ||
(IS_ENABLED(CONFIG_BT_CTLR_ADV_EXT) &&
(prev->type == PDU_ADV_TYPE_EXT_IND))) {
/* TODO: remember data, to be used if type is changed using
* parameter set function ll_adv_params_set afterwards.
*/
return 0;
}
/* update adv pdu fields. */
pdu = lll_adv_data_alloc(&adv->lll, &idx);
pdu->type = prev->type;
pdu->rfu = 0U;
if (IS_ENABLED(CONFIG_BT_CTLR_CHAN_SEL_2)) {
pdu->chan_sel = prev->chan_sel;
} else {
pdu->chan_sel = 0U;
}
pdu->tx_addr = prev->tx_addr;
pdu->rx_addr = prev->rx_addr;
memcpy(&pdu->adv_ind.addr[0], &prev->adv_ind.addr[0], BDADDR_SIZE);
memcpy(&pdu->adv_ind.data[0], data, len);
pdu->len = BDADDR_SIZE + len;
lll_adv_data_enqueue(&adv->lll, idx);
return 0;
}
#if defined(CONFIG_BT_CTLR_ADV_EXT)
u8_t ll_adv_scan_rsp_set(u16_t handle, u8_t len, u8_t const *const data)
{
#else /* !CONFIG_BT_CTLR_ADV_EXT */
u8_t ll_adv_scan_rsp_set(u8_t len, u8_t const *const data)
{
const u16_t handle = 0;
#endif /* !CONFIG_BT_CTLR_ADV_EXT */
struct ll_adv_set *adv;
struct pdu_adv *prev;
struct pdu_adv *pdu;
u8_t idx;
adv = ull_adv_set_get(handle);
if (!adv) {
return BT_HCI_ERR_CMD_DISALLOWED;
}
/* update scan pdu fields. */
prev = lll_adv_scan_rsp_peek(&adv->lll);
pdu = lll_adv_scan_rsp_alloc(&adv->lll, &idx);
pdu->type = PDU_ADV_TYPE_SCAN_RSP;
pdu->rfu = 0;
pdu->chan_sel = 0;
pdu->tx_addr = prev->tx_addr;
pdu->rx_addr = 0;
pdu->len = BDADDR_SIZE + len;
memcpy(&pdu->scan_rsp.addr[0], &prev->scan_rsp.addr[0], BDADDR_SIZE);
memcpy(&pdu->scan_rsp.data[0], data, len);
lll_adv_scan_rsp_enqueue(&adv->lll, idx);
return 0;
}
#if defined(CONFIG_BT_CTLR_ADV_EXT) || defined(CONFIG_BT_HCI_MESH_EXT)
#if defined(CONFIG_BT_HCI_MESH_EXT)
u8_t ll_adv_enable(u16_t handle, u8_t enable,
u8_t at_anchor, u32_t ticks_anchor, u8_t retry,
u8_t scan_window, u8_t scan_delay)
{
#else /* !CONFIG_BT_HCI_MESH_EXT */
u8_t ll_adv_enable(u16_t handle, u8_t enable)
{
u32_t ticks_anchor;
#endif /* !CONFIG_BT_HCI_MESH_EXT */
#else /* !CONFIG_BT_CTLR_ADV_EXT || !CONFIG_BT_HCI_MESH_EXT */
u8_t ll_adv_enable(u8_t enable)
{
u16_t const handle = 0;
u32_t ticks_anchor;
#endif /* !CONFIG_BT_CTLR_ADV_EXT || !CONFIG_BT_HCI_MESH_EXT */
volatile u32_t ret_cb = TICKER_STATUS_BUSY;
u8_t rl_idx = FILTER_IDX_NONE;
u32_t ticks_slot_overhead;
struct pdu_adv *pdu_scan;
struct pdu_adv *pdu_adv;
u32_t ticks_slot_offset;
struct ll_adv_set *adv;
struct lll_adv *lll;
u32_t ret;
if (!enable) {
return disable(handle);
}
adv = is_disabled_get(handle);
if (!adv) {
return BT_HCI_ERR_CMD_DISALLOWED;
}
/* remember addr to use and also update the addr in
* both adv and scan response PDUs.
*/
lll = &adv->lll;
pdu_adv = lll_adv_data_peek(lll);
pdu_scan = lll_adv_scan_rsp_peek(lll);
if (0) {
#if defined(CONFIG_BT_CTLR_ADV_EXT)
} else if (pdu_adv->type == PDU_ADV_TYPE_EXT_IND) {
struct pdu_adv_com_ext_adv *p;
struct ext_adv_hdr *h;
u8_t *ptr;
p = (void *)&pdu_adv->adv_ext_ind;
h = (void *)p->ext_hdr_adi_adv_data;
ptr = (u8_t *)h + sizeof(*h);
/* AdvA, fill here at enable */
if (h->adv_addr) {
memcpy(ptr, ll_addr_get(pdu_adv->tx_addr, NULL),
BDADDR_SIZE);
}
/* TODO: TargetA, fill here at enable */
#endif /* CONFIG_BT_CTLR_ADV_EXT */
} else {
bool priv = false;
#if defined(CONFIG_BT_CTLR_PRIVACY)
/* Prepare whitelist and optionally resolving list */
ull_filter_adv_update(lll->filter_policy);
if (adv->own_addr_type == BT_ADDR_LE_PUBLIC_ID ||
adv->own_addr_type == BT_ADDR_LE_RANDOM_ID) {
/* Look up the resolving list */
rl_idx = ull_filter_rl_find(adv->id_addr_type,
adv->id_addr, NULL);
if (rl_idx != FILTER_IDX_NONE) {
/* Generate RPAs if required */
ull_filter_rpa_update(false);
}
ull_filter_adv_pdu_update(adv, rl_idx, pdu_adv);
ull_filter_adv_pdu_update(adv, rl_idx, pdu_scan);
priv = true;
}
#endif /* !CONFIG_BT_CTLR_PRIVACY */
if (!priv) {
memcpy(&pdu_adv->adv_ind.addr[0],
ll_addr_get(pdu_adv->tx_addr, NULL),
BDADDR_SIZE);
memcpy(&pdu_scan->scan_rsp.addr[0],
ll_addr_get(pdu_adv->tx_addr, NULL),
BDADDR_SIZE);
}
}
#if defined(CONFIG_BT_HCI_MESH_EXT)
if (scan_delay) {
if (ull_scan_is_enabled(0)) {
return BT_HCI_ERR_CMD_DISALLOWED;
}
lll->is_mesh = 1;
}
#endif /* CONFIG_BT_HCI_MESH_EXT */
#if defined(CONFIG_BT_PERIPHERAL)
/* prepare connectable advertising */
if ((pdu_adv->type == PDU_ADV_TYPE_ADV_IND) ||
(pdu_adv->type == PDU_ADV_TYPE_DIRECT_IND)) {
struct node_rx_pdu *node_rx;
struct ll_conn *conn;
struct lll_conn *conn_lll;
void *link;
if (lll->conn) {
return BT_HCI_ERR_CMD_DISALLOWED;
}
link = ll_rx_link_alloc();
if (!link) {
return BT_HCI_ERR_MEM_CAPACITY_EXCEEDED;
}
node_rx = ll_rx_alloc();
if (!node_rx) {
ll_rx_link_release(link);
return BT_HCI_ERR_MEM_CAPACITY_EXCEEDED;
}
conn = ll_conn_acquire();
if (!conn) {
ll_rx_release(node_rx);
ll_rx_link_release(link);
return BT_HCI_ERR_MEM_CAPACITY_EXCEEDED;
}
conn_lll = &conn->lll;
conn_lll->handle = 0xFFFF;
if (!conn_lll->link_tx_free) {
conn_lll->link_tx_free = &conn_lll->link_tx;
}
memq_init(conn_lll->link_tx_free, &conn_lll->memq_tx.head,
&conn_lll->memq_tx.tail);
conn_lll->link_tx_free = NULL;
conn_lll->packet_tx_head_len = 0;
conn_lll->packet_tx_head_offset = 0;
conn_lll->sn = 0;
conn_lll->nesn = 0;
conn_lll->empty = 0;
#if defined(CONFIG_BT_CTLR_DATA_LENGTH)
conn_lll->max_tx_octets = PDU_DC_PAYLOAD_SIZE_MIN;
conn_lll->max_rx_octets = PDU_DC_PAYLOAD_SIZE_MIN;
#if defined(CONFIG_BT_CTLR_PHY)
/* Use the default 1M packet max time. Value of 0 is
* equivalent to using BIT(0).
*/
conn_lll->max_tx_time = PKT_US(PDU_DC_PAYLOAD_SIZE_MIN, 0);
conn_lll->max_rx_time = PKT_US(PDU_DC_PAYLOAD_SIZE_MIN, 0);
#endif /* CONFIG_BT_CTLR_PHY */
#endif /* CONFIG_BT_CTLR_DATA_LENGTH */
#if defined(CONFIG_BT_CTLR_PHY)
conn_lll->phy_tx = BIT(0);
conn_lll->phy_flags = 0;
conn_lll->phy_tx_time = BIT(0);
conn_lll->phy_rx = BIT(0);
#endif /* CONFIG_BT_CTLR_PHY */
#if defined(CONFIG_BT_CTLR_CONN_RSSI)
conn_lll->rssi_latest = 0x7F;
conn_lll->rssi_reported = 0x7F;
conn_lll->rssi_sample_count = 0;
#endif /* CONFIG_BT_CTLR_CONN_RSSI */
/* FIXME: BEGIN: Move to ULL? */
conn_lll->role = 1;
conn_lll->data_chan_sel = 0;
conn_lll->data_chan_use = 0;
conn_lll->event_counter = 0;
conn_lll->latency_prepare = 0;
conn_lll->latency_event = 0;
conn_lll->slave.latency_enabled = 0;
conn_lll->slave.latency_cancel = 0;
conn_lll->slave.window_widening_prepare_us = 0;
conn_lll->slave.window_widening_event_us = 0;
conn_lll->slave.window_size_prepare_us = 0;
/* FIXME: END: Move to ULL? */
conn->connect_expire = 6;
conn->supervision_expire = 0;
conn->procedure_expire = 0;
conn->common.fex_valid = 0;
conn->llcp_req = conn->llcp_ack = conn->llcp_type = 0;
conn->llcp_rx = NULL;
conn->llcp_features = LL_FEAT;
conn->llcp_version.tx = conn->llcp_version.rx = 0;
conn->llcp_terminate.reason_peer = 0;
/* NOTE: use allocated link for generating dedicated
* terminate ind rx node
*/
conn->llcp_terminate.node_rx.hdr.link = link;
#if defined(CONFIG_BT_CTLR_LE_ENC)
conn_lll->enc_rx = conn_lll->enc_tx = 0U;
conn->llcp_enc.req = conn->llcp_enc.ack = 0U;
conn->llcp_enc.pause_tx = conn->llcp_enc.pause_rx = 0U;
conn->llcp_enc.refresh = 0U;
#endif /* CONFIG_BT_CTLR_LE_ENC */
#if defined(CONFIG_BT_CTLR_CONN_PARAM_REQ)
conn->llcp_conn_param.req = 0;
conn->llcp_conn_param.ack = 0;
conn->llcp_conn_param.disabled = 0;
#endif /* CONFIG_BT_CTLR_CONN_PARAM_REQ */
#if defined(CONFIG_BT_CTLR_DATA_LENGTH)
conn->llcp_length.req = conn->llcp_length.ack = 0U;
conn->llcp_length.pause_tx = 0U;
conn->default_tx_octets = ull_conn_default_tx_octets_get();
#if defined(CONFIG_BT_CTLR_PHY)
conn->default_tx_time = ull_conn_default_tx_time_get();
#endif /* CONFIG_BT_CTLR_PHY */
#endif /* CONFIG_BT_CTLR_DATA_LENGTH */
#if defined(CONFIG_BT_CTLR_PHY)
conn->llcp_phy.req = conn->llcp_phy.ack = 0;
conn->llcp_phy.pause_tx = 0U;
conn->phy_pref_tx = ull_conn_default_phy_tx_get();
conn->phy_pref_rx = ull_conn_default_phy_rx_get();
conn->phy_pref_flags = 0;
#endif /* CONFIG_BT_CTLR_PHY */
conn->tx_head = conn->tx_ctrl = conn->tx_ctrl_last =
conn->tx_data = conn->tx_data_last = 0;
/* NOTE: using same link as supplied for terminate ind */
adv->link_cc_free = link;
adv->node_rx_cc_free = node_rx;
lll->conn = conn_lll;
ull_hdr_init(&conn->ull);
lll_hdr_init(&conn->lll, conn);
/* wait for stable clocks */
lll_clock_wait();
}
#endif /* CONFIG_BT_PERIPHERAL */
#if defined(CONFIG_BT_CTLR_PRIVACY)
adv->rl_idx = rl_idx;
#else
ARG_UNUSED(rl_idx);
#endif /* CONFIG_BT_CTLR_PRIVACY */
#if defined(CONFIG_BT_CTLR_ADV_EXT)
const u8_t phy = lll->phy_p;
#else
/* Legacy ADV only supports LE_1M PHY */
const u8_t phy = 1;
#endif
/* For now we adv on all channels enabled in channel map */
u8_t ch_map = lll->chan_map;
const u8_t adv_chn_cnt = util_ones_count_get(&ch_map, sizeof(ch_map));
u32_t slot_us = EVENT_OVERHEAD_START_US + EVENT_OVERHEAD_END_US;
if (adv_chn_cnt == 0) {
/* ADV needs at least one channel */
goto failure_cleanup;
}
#if defined(CONFIG_BT_CTLR_ADV_EXT)
if (pdu_adv->type == PDU_ADV_TYPE_EXT_IND) {
/* TBD */
} else
#endif
{
const u8_t adv_data_len = pdu_adv->len;
const u8_t rsp_data_len = pdu_scan->len;
const u8_t ll_hdr_size = LL_HEADER_SIZE(phy);
u32_t adv_size = ll_hdr_size + ADVA_SIZE;
const u8_t ll_hdr_us = BYTES2US(ll_hdr_size, phy);
const u8_t rx_to_us = EVENT_RX_TO_US(phy);
const u8_t rxtx_turn_us = EVENT_RX_TX_TURNARROUND(phy);
const u16_t conn_ind_us = ll_hdr_us +
BYTES2US(INITA_SIZE + ADVA_SIZE +
LLDATA_SIZE, phy);
const u8_t scan_req_us = ll_hdr_us +
BYTES2US(SCANA_SIZE + ADVA_SIZE, phy);
/* ll_header plus AdvA and scan response data */
const u16_t scan_rsp_us = ll_hdr_us +
BYTES2US(ADVA_SIZE + rsp_data_len,
phy);
if (phy != 0x01) {
/* Legacy ADV only supports LE_1M PHY */
goto failure_cleanup;
}
if (pdu_adv->type == PDU_ADV_TYPE_NONCONN_IND) {
adv_size += adv_data_len;
slot_us += BYTES2US(adv_size, phy) * adv_chn_cnt +
EVENT_IFS_MAX_US * (adv_chn_cnt - 1);
} else {
if (pdu_adv->type == PDU_ADV_TYPE_DIRECT_IND) {
adv_size += TARGETA_SIZE;
slot_us += conn_ind_us;
} else if (pdu_adv->type == PDU_ADV_TYPE_ADV_IND) {
adv_size += adv_data_len;
slot_us += MAX(scan_req_us + EVENT_IFS_MAX_US +
scan_rsp_us, conn_ind_us);
} else if (pdu_adv->type == PDU_ADV_TYPE_SCAN_IND) {
adv_size += adv_data_len;
slot_us += scan_req_us + EVENT_IFS_MAX_US +
scan_rsp_us;
}
slot_us += (BYTES2US(adv_size, phy) + EVENT_IFS_MAX_US
+ rx_to_us + rxtx_turn_us) * (adv_chn_cnt-1)
+ BYTES2US(adv_size, phy) + EVENT_IFS_MAX_US;
}
}
u16_t interval = adv->interval;
#if defined(CONFIG_BT_HCI_MESH_EXT)
if (lll->is_mesh) {
u16_t interval_min_us;
_radio.advertiser.retry = retry;
_radio.advertiser.scan_delay_ms = scan_delay;
_radio.advertiser.scan_window_ms = scan_window;
interval_min_us = slot_us + (scan_delay + scan_window) * 1000;
if ((interval * 625) < interval_min_us) {
interval = (interval_min_us + (625 - 1)) / 625;
}
/* passive scanning */
_radio.scanner.type = 0;
#if defined(CONFIG_BT_CTLR_ADV_EXT)
/* TODO: Coded PHY support */
_radio.scanner.phy = 0;
#endif /* CONFIG_BT_CTLR_ADV_EXT */
#if defined(CONFIG_BT_CTLR_PRIVACY)
/* TODO: Privacy support */
_radio.scanner.rpa_gen = 0;
_radio.scanner.rl_idx = rl_idx;
#endif /* CONFIG_BT_CTLR_PRIVACY */
_radio.scanner.filter_policy = filter_policy;
}
#endif /* CONFIG_BT_HCI_MESH_EXT */
ull_hdr_init(&adv->ull);
lll_hdr_init(lll, adv);
/* TODO: active_to_start feature port */
adv->evt.ticks_active_to_start = 0;
adv->evt.ticks_xtal_to_start =
HAL_TICKER_US_TO_TICKS(EVENT_OVERHEAD_XTAL_US);
adv->evt.ticks_preempt_to_start =
HAL_TICKER_US_TO_TICKS(EVENT_OVERHEAD_PREEMPT_MIN_US);
adv->evt.ticks_slot = HAL_TICKER_US_TO_TICKS(slot_us);
ticks_slot_offset = MAX(adv->evt.ticks_active_to_start,
adv->evt.ticks_xtal_to_start);
if (IS_ENABLED(CONFIG_BT_CTLR_LOW_LAT)) {
ticks_slot_overhead = ticks_slot_offset;
} else {
ticks_slot_overhead = 0;
}
#if !defined(CONFIG_BT_HCI_MESH_EXT)
ticks_anchor = ticker_ticks_now_get();
#else /* CONFIG_BT_HCI_MESH_EXT */
if (!at_anchor) {
ticks_anchor = ticker_ticks_now_get();
}
#endif /* !CONFIG_BT_HCI_MESH_EXT */
/* High Duty Cycle Directed Advertising if interval is 0. */
#if defined(CONFIG_BT_PERIPHERAL)
lll->is_hdcd = !interval && (pdu_adv->type == PDU_ADV_TYPE_DIRECT_IND);
if (lll->is_hdcd) {
ret = ticker_start(TICKER_INSTANCE_ID_CTLR,
TICKER_USER_ID_THREAD,
(TICKER_ID_ADV_BASE + handle),
ticks_anchor, 0,
adv->evt.ticks_slot,
TICKER_NULL_REMAINDER, TICKER_NULL_LAZY,
(adv->evt.ticks_slot + ticks_slot_overhead),
ticker_cb, adv,
ull_ticker_status_give, (void *)&ret_cb);
ret = ull_ticker_status_take(ret, &ret_cb);
if (ret != TICKER_STATUS_SUCCESS) {
goto failure_cleanup;
}
ret_cb = TICKER_STATUS_BUSY;
ret = ticker_start(TICKER_INSTANCE_ID_CTLR,
TICKER_USER_ID_THREAD,
TICKER_ID_ADV_STOP, ticks_anchor,
HAL_TICKER_US_TO_TICKS(ticks_slot_offset +
(1280 * 1000)),
TICKER_NULL_PERIOD, TICKER_NULL_REMAINDER,
TICKER_NULL_LAZY, TICKER_NULL_SLOT,
ticker_stop_cb, adv,
ull_ticker_status_give, (void *)&ret_cb);
} else
#endif /* CONFIG_BT_PERIPHERAL */
{
ret = ticker_start(TICKER_INSTANCE_ID_CTLR,
TICKER_USER_ID_THREAD,
(TICKER_ID_ADV_BASE + handle),
ticks_anchor, 0,
HAL_TICKER_US_TO_TICKS((u64_t)interval *
625),
TICKER_NULL_REMAINDER, TICKER_NULL_LAZY,
(adv->evt.ticks_slot + ticks_slot_overhead),
ticker_cb, adv,
ull_ticker_status_give, (void *)&ret_cb);
}
ret = ull_ticker_status_take(ret, &ret_cb);
if (ret != TICKER_STATUS_SUCCESS) {
goto failure_cleanup;
}
adv->is_enabled = 1;
#if defined(CONFIG_BT_CTLR_PRIVACY)
#if defined(CONFIG_BT_HCI_MESH_EXT)
if (_radio.advertiser.is_mesh) {
_radio.scanner.is_enabled = 1;
ull_filter_adv_scan_state_cb(BIT(0) | BIT(1));
}
#else /* !CONFIG_BT_HCI_MESH_EXT */
if (IS_ENABLED(CONFIG_BT_OBSERVER) && !ull_scan_is_enabled_get(0)) {
ull_filter_adv_scan_state_cb(BIT(0));
}
#endif /* !CONFIG_BT_HCI_MESH_EXT */
#endif /* CONFIG_BT_CTLR_PRIVACY */
return 0;
failure_cleanup:
#if defined(CONFIG_BT_PERIPHERAL)
if (adv->lll.conn) {
conn_release(adv);
}
#endif /* CONFIG_BT_PERIPHERAL */
return BT_HCI_ERR_CMD_DISALLOWED;
}
int ull_adv_init(void)
{
int err;
err = init_reset();
if (err) {
return err;
}
return 0;
}
int ull_adv_reset(void)
{
u16_t handle;
int err;
for (handle = 0U; handle < BT_CTLR_ADV_MAX; handle++) {
(void)disable(handle);
}
err = init_reset();
if (err) {
return err;
}
return 0;
}
inline struct ll_adv_set *ull_adv_set_get(u16_t handle)
{
if (handle >= BT_CTLR_ADV_MAX) {
return NULL;
}
return &ll_adv[handle];
}
inline u16_t ull_adv_handle_get(struct ll_adv_set *adv)
{
return ((u8_t *)adv - (u8_t *)ll_adv) / sizeof(*adv);
}
u16_t ull_adv_lll_handle_get(struct lll_adv *lll)
{
return ull_adv_handle_get((void *)lll->hdr.parent);
}
inline struct ll_adv_set *ull_adv_is_enabled_get(u16_t handle)
{
struct ll_adv_set *adv;
adv = ull_adv_set_get(handle);
if (!adv || !adv->is_enabled) {
return NULL;
}
return adv;
}
u32_t ull_adv_is_enabled(u16_t handle)
{
struct ll_adv_set *adv;
adv = ull_adv_is_enabled_get(handle);
if (!adv) {
return 0;
}
return BIT(0);
}
u32_t ull_adv_filter_pol_get(u16_t handle)
{
struct ll_adv_set *adv;
adv = ull_adv_is_enabled_get(handle);
if (!adv) {
return 0;
}
return adv->lll.filter_policy;
}
static int init_reset(void)
{
return 0;
}
static inline struct ll_adv_set *is_disabled_get(u16_t handle)
{
struct ll_adv_set *adv;
adv = ull_adv_set_get(handle);
if (!adv || adv->is_enabled) {
return NULL;
}
return adv;
}
static void ticker_cb(u32_t ticks_at_expire, u32_t remainder, u16_t lazy,
void *param)
{
static memq_link_t link;
static struct mayfly mfy = {0, 0, &link, NULL, lll_adv_prepare};
static struct lll_prepare_param p;
struct ll_adv_set *adv = param;
struct lll_adv *lll;
u32_t ret;
u8_t ref;
DEBUG_RADIO_PREPARE_A(1);
/* Increment prepare reference count */
ref = ull_ref_inc(&adv->ull);