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feat(bluetooth): Proper bond management, identity support for non-splits

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* Add `bt` behavior that can be used to perform certain actions,
  such as next/prev identity, reset identity, etc.
  NOTE: Multiple identities is only supported for non-split shields,
  due to missing Zephyr identity functionality for dual
  central/peripheral devices.
* Proper bond reset tied to action, that honors peripheral bonds,
  so folks can reset and pair to other hosts, without breaking
  bonds between splt halves.
This commit is contained in:
Pete Johanson
2020-08-28 14:15:16 -04:00
parent 304603240f
commit cf970efb98
12 changed files with 563 additions and 52 deletions
Download Patch File Download Diff File Expand all files Collapse all files

49
app/src/split/bluetooth/central.c
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@@ -10,12 +10,14 @@
#include <bluetooth/conn.h>
#include <bluetooth/uuid.h>
#include <bluetooth/gatt.h>
#include <bluetooth/hci.h>
#include <sys/byteorder.h>
#include <logging/log.h>
LOG_MODULE_DECLARE(zmk, CONFIG_ZMK_LOG_LEVEL);
#include <zmk/ble.h>
#include <zmk/split/bluetooth/uuid.h>
#include <zmk/event-manager.h>
#include <zmk/events/position-state-changed.h>
@@ -71,6 +73,18 @@ static u8_t split_central_notify_func(struct bt_conn *conn,
return BT_GATT_ITER_CONTINUE;
}
static int split_central_subscribe(struct bt_conn *conn)
{
int err = bt_gatt_subscribe(conn, &subscribe_params);
if (err && err != -EALREADY) {
LOG_ERR("Subscribe failed (err %d)", err);
} else {
LOG_DBG("[SUBSCRIBED]");
}
return 0;
}
static u8_t split_central_discovery_func(struct bt_conn *conn,
const struct bt_gatt_attr *attr,
struct bt_gatt_discover_params *params)
@@ -112,12 +126,7 @@ static u8_t split_central_discovery_func(struct bt_conn *conn,
subscribe_params.value = BT_GATT_CCC_NOTIFY;
subscribe_params.ccc_handle = attr->handle;
err = bt_gatt_subscribe(conn, &subscribe_params);
if (err && err != -EALREADY) {
LOG_ERR("Subscribe failed (err %d)", err);
} else {
LOG_DBG("[SUBSCRIBED]");
}
split_central_subscribe(conn);
return BT_GATT_ITER_STOP;
}
@@ -137,16 +146,20 @@ static void split_central_process_connection(struct bt_conn *conn) {
}
if (conn == default_conn) {
discover_params.uuid = &uuid.uuid;
discover_params.func = split_central_discovery_func;
discover_params.start_handle = 0x0001;
discover_params.end_handle = 0xffff;
discover_params.type = BT_GATT_DISCOVER_PRIMARY;
if (subscribe_params.value) {
split_central_subscribe(conn);
} else {
discover_params.uuid = &uuid.uuid;
discover_params.func = split_central_discovery_func;
discover_params.start_handle = 0x0001;
discover_params.end_handle = 0xffff;
discover_params.type = BT_GATT_DISCOVER_PRIMARY;
err = bt_gatt_discover(default_conn, &discover_params);
if (err) {
LOG_ERR("Discover failed(err %d)", err);
return;
err = bt_gatt_discover(default_conn, &discover_params);
if (err) {
LOG_ERR("Discover failed(err %d)", err);
return;
}
}
}
@@ -194,6 +207,8 @@ static bool split_central_eir_found(struct bt_data *data, void *user_data)
LOG_DBG("Found the split service");
zmk_ble_set_peripheral_addr(addr);
err = bt_le_scan_stop();
if (err) {
LOG_ERR("Stop LE scan failed (err %d)", err);
@@ -206,10 +221,11 @@ static bool split_central_eir_found(struct bt_data *data, void *user_data)
split_central_process_connection(default_conn);
} else {
param = BT_LE_CONN_PARAM(0x0006, 0x0006, 30, 400);
err = bt_conn_le_create(addr, BT_CONN_LE_CREATE_CONN,
param, &default_conn);
if (err) {
LOG_ERR("Create conn failed (err %d)", err);
LOG_ERR("Create conn failed (err %d) (create conn? 0x%04x)", err, BT_HCI_OP_LE_CREATE_CONN);
start_scan();
}
@@ -263,6 +279,7 @@ static void split_central_connected(struct bt_conn *conn, u8_t conn_err)
bt_addr_le_to_str(bt_conn_get_dst(conn), addr, sizeof(addr));
if (conn_err) {
LOG_ERR("Failed to connect to %s (%u)", addr, conn_err);