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添加智能灯固件代码

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kerwincui
2021-07-13 17:14:51 +08:00
parent 332f74dd17
commit ecc0b91b8b
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firmware/esp-idf/wumei-smart-firmware/examples/bluetooth/nimble/blecent/main/main.c Normal file
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/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
#include "esp_log.h"
#include "nvs_flash.h"
/* BLE */
#include "esp_nimble_hci.h"
#include "nimble/nimble_port.h"
#include "nimble/nimble_port_freertos.h"
#include "host/ble_hs.h"
#include "host/util/util.h"
#include "console/console.h"
#include "services/gap/ble_svc_gap.h"
#include "blecent.h"
static const char *tag = "NimBLE_BLE_CENT";
static int blecent_gap_event(struct ble_gap_event *event, void *arg);
static uint8_t peer_addr[6];
void ble_store_config_init(void);
/**
* Application callback. Called when the attempt to subscribe to notifications
* for the ANS Unread Alert Status characteristic has completed.
*/
static int
blecent_on_subscribe(uint16_t conn_handle,
const struct ble_gatt_error *error,
struct ble_gatt_attr *attr,
void *arg)
{
MODLOG_DFLT(INFO, "Subscribe complete; status=%d conn_handle=%d "
"attr_handle=%d\n",
error->status, conn_handle, attr->handle);
return 0;
}
/**
* Application callback. Called when the write to the ANS Alert Notification
* Control Point characteristic has completed.
*/
static int
blecent_on_write(uint16_t conn_handle,
const struct ble_gatt_error *error,
struct ble_gatt_attr *attr,
void *arg)
{
MODLOG_DFLT(INFO,
"Write complete; status=%d conn_handle=%d attr_handle=%d\n",
error->status, conn_handle, attr->handle);
/* Subscribe to notifications for the Unread Alert Status characteristic.
* A central enables notifications by writing two bytes (1, 0) to the
* characteristic's client-characteristic-configuration-descriptor (CCCD).
*/
const struct peer_dsc *dsc;
uint8_t value[2];
int rc;
const struct peer *peer = peer_find(conn_handle);
dsc = peer_dsc_find_uuid(peer,
BLE_UUID16_DECLARE(BLECENT_SVC_ALERT_UUID),
BLE_UUID16_DECLARE(BLECENT_CHR_UNR_ALERT_STAT_UUID),
BLE_UUID16_DECLARE(BLE_GATT_DSC_CLT_CFG_UUID16));
if (dsc == NULL) {
MODLOG_DFLT(ERROR, "Error: Peer lacks a CCCD for the Unread Alert "
"Status characteristic\n");
goto err;
}
value[0] = 1;
value[1] = 0;
rc = ble_gattc_write_flat(conn_handle, dsc->dsc.handle,
value, sizeof value, blecent_on_subscribe, NULL);
if (rc != 0) {
MODLOG_DFLT(ERROR, "Error: Failed to subscribe to characteristic; "
"rc=%d\n", rc);
goto err;
}
return 0;
err:
/* Terminate the connection. */
return ble_gap_terminate(peer->conn_handle, BLE_ERR_REM_USER_CONN_TERM);
}
/**
* Application callback. Called when the read of the ANS Supported New Alert
* Category characteristic has completed.
*/
static int
blecent_on_read(uint16_t conn_handle,
const struct ble_gatt_error *error,
struct ble_gatt_attr *attr,
void *arg)
{
MODLOG_DFLT(INFO, "Read complete; status=%d conn_handle=%d", error->status,
conn_handle);
if (error->status == 0) {
MODLOG_DFLT(INFO, " attr_handle=%d value=", attr->handle);
print_mbuf(attr->om);
}
MODLOG_DFLT(INFO, "\n");
/* Write two bytes (99, 100) to the alert-notification-control-point
* characteristic.
*/
const struct peer_chr *chr;
uint8_t value[2];
int rc;
const struct peer *peer = peer_find(conn_handle);
chr = peer_chr_find_uuid(peer,
BLE_UUID16_DECLARE(BLECENT_SVC_ALERT_UUID),
BLE_UUID16_DECLARE(BLECENT_CHR_ALERT_NOT_CTRL_PT));
if (chr == NULL) {
MODLOG_DFLT(ERROR, "Error: Peer doesn't support the Alert "
"Notification Control Point characteristic\n");
goto err;
}
value[0] = 99;
value[1] = 100;
rc = ble_gattc_write_flat(conn_handle, chr->chr.val_handle,
value, sizeof value, blecent_on_write, NULL);
if (rc != 0) {
MODLOG_DFLT(ERROR, "Error: Failed to write characteristic; rc=%d\n",
rc);
goto err;
}
return 0;
err:
/* Terminate the connection. */
return ble_gap_terminate(peer->conn_handle, BLE_ERR_REM_USER_CONN_TERM);
}
/**
* Performs three GATT operations against the specified peer:
* 1. Reads the ANS Supported New Alert Category characteristic.
* 2. After read is completed, writes the ANS Alert Notification Control Point characteristic.
* 3. After write is completed, subscribes to notifications for the ANS Unread Alert Status
* characteristic.
*
* If the peer does not support a required service, characteristic, or
* descriptor, then the peer lied when it claimed support for the alert
* notification service! When this happens, or if a GATT procedure fails,
* this function immediately terminates the connection.
*/
static void
blecent_read_write_subscribe(const struct peer *peer)
{
const struct peer_chr *chr;
int rc;
/* Read the supported-new-alert-category characteristic. */
chr = peer_chr_find_uuid(peer,
BLE_UUID16_DECLARE(BLECENT_SVC_ALERT_UUID),
BLE_UUID16_DECLARE(BLECENT_CHR_SUP_NEW_ALERT_CAT_UUID));
if (chr == NULL) {
MODLOG_DFLT(ERROR, "Error: Peer doesn't support the Supported New "
"Alert Category characteristic\n");
goto err;
}
rc = ble_gattc_read(peer->conn_handle, chr->chr.val_handle,
blecent_on_read, NULL);
if (rc != 0) {
MODLOG_DFLT(ERROR, "Error: Failed to read characteristic; rc=%d\n",
rc);
goto err;
}
return;
err:
/* Terminate the connection. */
ble_gap_terminate(peer->conn_handle, BLE_ERR_REM_USER_CONN_TERM);
}
/**
* Called when service discovery of the specified peer has completed.
*/
static void
blecent_on_disc_complete(const struct peer *peer, int status, void *arg)
{
if (status != 0) {
/* Service discovery failed. Terminate the connection. */
MODLOG_DFLT(ERROR, "Error: Service discovery failed; status=%d "
"conn_handle=%d\n", status, peer->conn_handle);
ble_gap_terminate(peer->conn_handle, BLE_ERR_REM_USER_CONN_TERM);
return;
}
/* Service discovery has completed successfully. Now we have a complete
* list of services, characteristics, and descriptors that the peer
* supports.
*/
MODLOG_DFLT(ERROR, "Service discovery complete; status=%d "
"conn_handle=%d\n", status, peer->conn_handle);
/* Now perform three GATT procedures against the peer: read,
* write, and subscribe to notifications.
*/
blecent_read_write_subscribe(peer);
}
/**
* Initiates the GAP general discovery procedure.
*/
static void
blecent_scan(void)
{
uint8_t own_addr_type;
struct ble_gap_disc_params disc_params;
int rc;
/* Figure out address to use while advertising (no privacy for now) */
rc = ble_hs_id_infer_auto(0, &own_addr_type);
if (rc != 0) {
MODLOG_DFLT(ERROR, "error determining address type; rc=%d\n", rc);
return;
}
/* Tell the controller to filter duplicates; we don't want to process
* repeated advertisements from the same device.
*/
disc_params.filter_duplicates = 1;
/**
* Perform a passive scan. I.e., don't send follow-up scan requests to
* each advertiser.
*/
disc_params.passive = 1;
/* Use defaults for the rest of the parameters. */
disc_params.itvl = 0;
disc_params.window = 0;
disc_params.filter_policy = 0;
disc_params.limited = 0;
rc = ble_gap_disc(own_addr_type, BLE_HS_FOREVER, &disc_params,
blecent_gap_event, NULL);
if (rc != 0) {
MODLOG_DFLT(ERROR, "Error initiating GAP discovery procedure; rc=%d\n",
rc);
}
}
/**
* Indicates whether we should try to connect to the sender of the specified
* advertisement. The function returns a positive result if the device
* advertises connectability and support for the Alert Notification service.
*/
static int
blecent_should_connect(const struct ble_gap_disc_desc *disc)
{
struct ble_hs_adv_fields fields;
int rc;
int i;
/* The device has to be advertising connectability. */
if (disc->event_type != BLE_HCI_ADV_RPT_EVTYPE_ADV_IND &&
disc->event_type != BLE_HCI_ADV_RPT_EVTYPE_DIR_IND) {
return 0;
}
rc = ble_hs_adv_parse_fields(&fields, disc->data, disc->length_data);
if (rc != 0) {
return rc;
}
if (strlen(CONFIG_EXAMPLE_PEER_ADDR) && (strncmp(CONFIG_EXAMPLE_PEER_ADDR, "ADDR_ANY", strlen("ADDR_ANY")) != 0)) {
ESP_LOGI(tag, "Peer address from menuconfig: %s", CONFIG_EXAMPLE_PEER_ADDR);
/* Convert string to address */
sscanf(CONFIG_EXAMPLE_PEER_ADDR, "%hhx:%hhx:%hhx:%hhx:%hhx:%hhx",
&peer_addr[5], &peer_addr[4], &peer_addr[3],
&peer_addr[2], &peer_addr[1], &peer_addr[0]);
if (memcmp(peer_addr, disc->addr.val, sizeof(disc->addr.val)) != 0) {
return 0;
}
}
/* The device has to advertise support for the Alert Notification
* service (0x1811).
*/
for (i = 0; i < fields.num_uuids16; i++) {
if (ble_uuid_u16(&fields.uuids16[i].u) == BLECENT_SVC_ALERT_UUID) {
return 1;
}
}
return 0;
}
/**
* Connects to the sender of the specified advertisement of it looks
* interesting. A device is "interesting" if it advertises connectability and
* support for the Alert Notification service.
*/
static void
blecent_connect_if_interesting(const struct ble_gap_disc_desc *disc)
{
uint8_t own_addr_type;
int rc;
/* Don't do anything if we don't care about this advertiser. */
if (!blecent_should_connect(disc)) {
return;
}
/* Scanning must be stopped before a connection can be initiated. */
rc = ble_gap_disc_cancel();
if (rc != 0) {
MODLOG_DFLT(DEBUG, "Failed to cancel scan; rc=%d\n", rc);
return;
}
/* Figure out address to use for connect (no privacy for now) */
rc = ble_hs_id_infer_auto(0, &own_addr_type);
if (rc != 0) {
MODLOG_DFLT(ERROR, "error determining address type; rc=%d\n", rc);
return;
}
/* Try to connect the the advertiser. Allow 30 seconds (30000 ms) for
* timeout.
*/
rc = ble_gap_connect(own_addr_type, &disc->addr, 30000, NULL,
blecent_gap_event, NULL);
if (rc != 0) {
MODLOG_DFLT(ERROR, "Error: Failed to connect to device; addr_type=%d "
"addr=%s; rc=%d\n",
disc->addr.type, addr_str(disc->addr.val), rc);
return;
}
}
/**
* The nimble host executes this callback when a GAP event occurs. The
* application associates a GAP event callback with each connection that is
* established. blecent uses the same callback for all connections.
*
* @param event The event being signalled.
* @param arg Application-specified argument; unused by
* blecent.
*
* @return 0 if the application successfully handled the
* event; nonzero on failure. The semantics
* of the return code is specific to the
* particular GAP event being signalled.
*/
static int
blecent_gap_event(struct ble_gap_event *event, void *arg)
{
struct ble_gap_conn_desc desc;
struct ble_hs_adv_fields fields;
int rc;
switch (event->type) {
case BLE_GAP_EVENT_DISC:
rc = ble_hs_adv_parse_fields(&fields, event->disc.data,
event->disc.length_data);
if (rc != 0) {
return 0;
}
/* An advertisment report was received during GAP discovery. */
print_adv_fields(&fields);
/* Try to connect to the advertiser if it looks interesting. */
blecent_connect_if_interesting(&event->disc);
return 0;
case BLE_GAP_EVENT_CONNECT:
/* A new connection was established or a connection attempt failed. */
if (event->connect.status == 0) {
/* Connection successfully established. */
MODLOG_DFLT(INFO, "Connection established ");
rc = ble_gap_conn_find(event->connect.conn_handle, &desc);
assert(rc == 0);
print_conn_desc(&desc);
MODLOG_DFLT(INFO, "\n");
/* Remember peer. */
rc = peer_add(event->connect.conn_handle);
if (rc != 0) {
MODLOG_DFLT(ERROR, "Failed to add peer; rc=%d\n", rc);
return 0;
}
/* Perform service discovery. */
rc = peer_disc_all(event->connect.conn_handle,
blecent_on_disc_complete, NULL);
if (rc != 0) {
MODLOG_DFLT(ERROR, "Failed to discover services; rc=%d\n", rc);
return 0;
}
} else {
/* Connection attempt failed; resume scanning. */
MODLOG_DFLT(ERROR, "Error: Connection failed; status=%d\n",
event->connect.status);
blecent_scan();
}
return 0;
case BLE_GAP_EVENT_DISCONNECT:
/* Connection terminated. */
MODLOG_DFLT(INFO, "disconnect; reason=%d ", event->disconnect.reason);
print_conn_desc(&event->disconnect.conn);
MODLOG_DFLT(INFO, "\n");
/* Forget about peer. */
peer_delete(event->disconnect.conn.conn_handle);
/* Resume scanning. */
blecent_scan();
return 0;
case BLE_GAP_EVENT_DISC_COMPLETE:
MODLOG_DFLT(INFO, "discovery complete; reason=%d\n",
event->disc_complete.reason);
return 0;
case BLE_GAP_EVENT_ENC_CHANGE:
/* Encryption has been enabled or disabled for this connection. */
MODLOG_DFLT(INFO, "encryption change event; status=%d ",
event->enc_change.status);
rc = ble_gap_conn_find(event->enc_change.conn_handle, &desc);
assert(rc == 0);
print_conn_desc(&desc);
return 0;
case BLE_GAP_EVENT_NOTIFY_RX:
/* Peer sent us a notification or indication. */
MODLOG_DFLT(INFO, "received %s; conn_handle=%d attr_handle=%d "
"attr_len=%d\n",
event->notify_rx.indication ?
"indication" :
"notification",
event->notify_rx.conn_handle,
event->notify_rx.attr_handle,
OS_MBUF_PKTLEN(event->notify_rx.om));
/* Attribute data is contained in event->notify_rx.attr_data. */
return 0;
case BLE_GAP_EVENT_MTU:
MODLOG_DFLT(INFO, "mtu update event; conn_handle=%d cid=%d mtu=%d\n",
event->mtu.conn_handle,
event->mtu.channel_id,
event->mtu.value);
return 0;
case BLE_GAP_EVENT_REPEAT_PAIRING:
/* We already have a bond with the peer, but it is attempting to
* establish a new secure link. This app sacrifices security for
* convenience: just throw away the old bond and accept the new link.
*/
/* Delete the old bond. */
rc = ble_gap_conn_find(event->repeat_pairing.conn_handle, &desc);
assert(rc == 0);
ble_store_util_delete_peer(&desc.peer_id_addr);
/* Return BLE_GAP_REPEAT_PAIRING_RETRY to indicate that the host should
* continue with the pairing operation.
*/
return BLE_GAP_REPEAT_PAIRING_RETRY;
default:
return 0;
}
}
static void
blecent_on_reset(int reason)
{
MODLOG_DFLT(ERROR, "Resetting state; reason=%d\n", reason);
}
static void
blecent_on_sync(void)
{
int rc;
/* Make sure we have proper identity address set (public preferred) */
rc = ble_hs_util_ensure_addr(0);
assert(rc == 0);
/* Begin scanning for a peripheral to connect to. */
blecent_scan();
}
void blecent_host_task(void *param)
{
ESP_LOGI(tag, "BLE Host Task Started");
/* This function will return only when nimble_port_stop() is executed */
nimble_port_run();
nimble_port_freertos_deinit();
}
void
app_main(void)
{
int rc;
/* Initialize NVS — it is used to store PHY calibration data */
esp_err_t ret = nvs_flash_init();
if (ret == ESP_ERR_NVS_NO_FREE_PAGES || ret == ESP_ERR_NVS_NEW_VERSION_FOUND) {
ESP_ERROR_CHECK(nvs_flash_erase());
ret = nvs_flash_init();
}
ESP_ERROR_CHECK(ret);
ESP_ERROR_CHECK(esp_nimble_hci_and_controller_init());
nimble_port_init();
/* Configure the host. */
ble_hs_cfg.reset_cb = blecent_on_reset;
ble_hs_cfg.sync_cb = blecent_on_sync;
ble_hs_cfg.store_status_cb = ble_store_util_status_rr;
/* Initialize data structures to track connected peers. */
rc = peer_init(MYNEWT_VAL(BLE_MAX_CONNECTIONS), 64, 64, 64);
assert(rc == 0);
/* Set the default device name. */
rc = ble_svc_gap_device_name_set("nimble-blecent");
assert(rc == 0);
/* XXX Need to have template for store */
ble_store_config_init();
nimble_port_freertos_init(blecent_host_task);
}