62 lines
1.6 KiB
Go
62 lines
1.6 KiB
Go
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// +build softdevice,s110v8
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package bluetooth
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/*
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// Define SoftDevice functions as regular function declarations (not inline
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// static functions).
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#define SVCALL_AS_NORMAL_FUNCTION
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#include "ble_gap.h"
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*/
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import "C"
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// Advertisement encapsulates a single advertisement instance.
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type Advertisement struct {
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interval AdvertiseInterval
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}
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var globalAdvertisement Advertisement
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// NewAdvertisement creates a new advertisement instance but does not configure
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// it. It can be called before the SoftDevice has been initialized.
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//
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// On the nrf51 only one advertisement is allowed at a given time, therefore
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// this is a singleton.
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func (a *Adapter) NewAdvertisement() *Advertisement {
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return &globalAdvertisement
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}
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// Configure this advertisement. Must be called after SoftDevice initialization.
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func (a *Advertisement) Configure(broadcastData, scanResponseData []byte, options *AdvertiseOptions) error {
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var (
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p_data *byte
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dlen byte
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p_sr_data *byte
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srdlen byte
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)
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if broadcastData != nil {
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p_data = &broadcastData[0]
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dlen = uint8(len(broadcastData))
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}
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if scanResponseData != nil {
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p_sr_data = &scanResponseData[0]
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srdlen = uint8(len(scanResponseData))
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}
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errCode := C.sd_ble_gap_adv_data_set(p_data, dlen, p_sr_data, srdlen)
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a.interval = options.Interval
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return makeError(errCode)
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}
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// Start advertisement. May only be called after it has been configured.
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func (a *Advertisement) Start() error {
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params := C.ble_gap_adv_params_t{
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_type: C.BLE_GAP_ADV_TYPE_ADV_IND,
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fp: C.BLE_GAP_ADV_FP_ANY,
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interval: uint16(a.interval),
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timeout: 0, // no timeout
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}
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errCode := C.sd_ble_gap_adv_start(¶ms)
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return makeError(errCode)
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}
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