aa5bbd5dfe
Updated controller implementation to disallow disabling initiator state using scan disable. But allow disabling an already disabled scan state. Also, disallow enabling scan state while in initiator state. Signed-off-by: Szymon Janc <szymon.janc@codecoup.pl> Signed-off-by: Vinayak Kariappa Chettimada <vich@nordicsemi.no>
102 lines
2.1 KiB
C
102 lines
2.1 KiB
C
/*
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* Copyright (c) 2016-2017 Nordic Semiconductor ASA
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* Copyright (c) 2016 Vinayak Kariappa Chettimada
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#include <zephyr.h>
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#include <bluetooth/hci.h>
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#include "util/util.h"
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#include "pdu.h"
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#include "ctrl.h"
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#include "ll.h"
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#include "ll_filter.h"
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static struct {
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u16_t interval;
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u16_t window;
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#if defined(CONFIG_BT_CTLR_ADV_EXT)
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u8_t type:4;
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#else /* !CONFIG_BT_CTLR_ADV_EXT */
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u8_t type:1;
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#endif /* !CONFIG_BT_CTLR_ADV_EXT */
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u8_t own_addr_type:2;
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u8_t filter_policy:2;
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} ll_scan;
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u32_t ll_scan_params_set(u8_t type, u16_t interval, u16_t window,
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u8_t own_addr_type, u8_t filter_policy)
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{
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if (ll_scan_is_enabled()) {
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return BT_HCI_ERR_CMD_DISALLOWED;
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}
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/* type value:
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* 0000b - legacy 1M passive
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* 0001b - legacy 1M active
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* 0010b - Ext. 1M passive
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* 0011b - Ext. 1M active
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* 0100b - invalid
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* 0101b - invalid
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* 0110b - invalid
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* 0111b - invalid
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* 1000b - Ext. Coded passive
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* 1001b - Ext. Coded active
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*/
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ll_scan.type = type;
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ll_scan.interval = interval;
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ll_scan.window = window;
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ll_scan.own_addr_type = own_addr_type;
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ll_scan.filter_policy = filter_policy;
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return 0;
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}
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u32_t ll_scan_enable(u8_t enable)
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{
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u8_t rpa_gen = 0;
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u32_t status;
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u32_t scan;
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if (!enable) {
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return radio_scan_disable(true);
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}
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scan = ll_scan_is_enabled();
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/* Initiator and scanning are not supported */
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if (scan & BIT(2)) {
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return BT_HCI_ERR_CMD_DISALLOWED;
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}
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if (scan) {
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/* Duplicate filtering is processed in the HCI layer */
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return 0;
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}
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#if defined(CONFIG_BT_CTLR_PRIVACY)
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ll_filters_scan_update(ll_scan.filter_policy);
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if ((ll_scan.type & 0x1) &&
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(ll_scan.own_addr_type == BT_ADDR_LE_PUBLIC_ID ||
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ll_scan.own_addr_type == BT_ADDR_LE_RANDOM_ID)) {
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/* Generate RPAs if required */
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ll_rl_rpa_update(false);
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rpa_gen = 1;
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}
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#endif
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status = radio_scan_enable(ll_scan.type, ll_scan.own_addr_type & 0x1,
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ll_addr_get(ll_scan.own_addr_type & 0x1,
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NULL),
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ll_scan.interval, ll_scan.window,
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ll_scan.filter_policy, rpa_gen,
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FILTER_IDX_NONE);
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return status;
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}
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