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feat(ble): add behavior to disconnect from BLE profile

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Adds new functionality and a behaviour to disconnect an active BLE connection.
The motivation for this is that for some devices like phones, the presence of an
active BLE connection results in the onscreen keyboard being selected.
This commit is contained in:
Chris Andreae 2023-01-27 19:30:43 +09:00
parent b80c0be0ce
commit 8f28775347
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GPG key ID: 3AA9D181B3ABD33F
4 changed files with 26 additions and 0 deletions
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2
app/include/dt-bindings/zmk/bt.h
View file

@ -9,6 +9,7 @@
#define BT_PRV_CMD 2
#define BT_SEL_CMD 3
// #define BT_FULL_RESET_CMD 4
#define BT_DISCONNECT_CMD 5
/*
Note: Some future commands will include additional parameters, so we
@ -19,3 +20,4 @@ defines these aliases up front.
#define BT_NXT BT_NXT_CMD 0
#define BT_PRV BT_PRV_CMD 0
#define BT_SEL BT_SEL_CMD
#define BT_DISCONNECT BT_DISCONNECT_CMD

1
app/include/zmk/ble.h
View file

@ -24,6 +24,7 @@ int zmk_ble_clear_bonds();
int zmk_ble_prof_next();
int zmk_ble_prof_prev();
int zmk_ble_prof_select(uint8_t index);
int zmk_ble_prof_disconnect(uint8_t index);
int zmk_ble_active_profile_index();
bt_addr_le_t *zmk_ble_active_profile_addr();

2
app/src/behaviors/behavior_bt.c
View file

@ -31,6 +31,8 @@ static int on_keymap_binding_pressed(struct zmk_behavior_binding *binding,
return zmk_ble_prof_prev();
case BT_SEL_CMD:
return zmk_ble_prof_select(binding->param2);
case BT_DISCONNECT_CMD:
return zmk_ble_prof_disconnect(binding->param2);
default:
LOG_ERR("Unknown BT command: %d", binding->param1);
}

21
app/src/ble.c
View file

@ -271,6 +271,27 @@ int zmk_ble_prof_prev() {
ZMK_BLE_PROFILE_COUNT);
};
int zmk_ble_prof_disconnect(uint8_t index) {
if (index >= ZMK_BLE_PROFILE_COUNT)
return -ERANGE;
bt_addr_le_t *addr = &profiles[index].peer;
struct bt_conn *conn;
int result;
if (!bt_addr_le_cmp(addr, BT_ADDR_LE_ANY)) {
return -1;
} else if ((conn = bt_conn_lookup_addr_le(BT_ID_DEFAULT, addr)) == NULL) {
return -1;
}
result = bt_conn_disconnect(conn, BT_HCI_ERR_REMOTE_USER_TERM_CONN);
LOG_DBG("Disconnected from profile %d: %d", index, result);
bt_conn_unref(conn);
return result;
}
bt_addr_le_t *zmk_ble_active_profile_addr() { return &profiles[active_profile].peer; }
char *zmk_ble_active_profile_name() { return profiles[active_profile].name; }