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feat(split): Increase split interval during idle

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Nick Winans 2022-05-06 00:19:08 -05:00 • committed by afiqzudinhadi
parent 886cd1025d
commit bd5e07f842
4 changed files with 108 additions and 1 deletions
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1
app/src/split/bluetooth/CMakeLists.txt
View file

@ -9,6 +9,7 @@ if (NOT CONFIG_ZMK_SPLIT_ROLE_CENTRAL)
endif()
if (CONFIG_ZMK_SPLIT_ROLE_CENTRAL)
target_sources(app PRIVATE central.c)
target_sources_ifdef(CONFIG_ZMK_SPLIT_BLE_PREF_IDLE app PRIVATE central_listener.c)
endif()
if (CONFIG_ZMK_SPLIT_BLE_CENTRAL_BATTERY_LEVEL_PROXY)

20
app/src/split/bluetooth/Kconfig
View file

@ -74,6 +74,26 @@ config ZMK_SPLIT_BLE_PREF_TIMEOUT
int "Supervision timeout to use for split central/peripheral connection"
default 400
config ZMK_SPLIT_BLE_PREF_IDLE
bool "Set slower split peripheral BLE params on idle to save power"
default y
if ZMK_SPLIT_BLE_PREF_IDLE
config ZMK_SPLIT_BLE_PREF_IDLE_INT
int "Peripheral idle connection interval in 1.25ms units"
default 18
config ZMK_SPLIT_BLE_PREF_IDLE_LATENCY
int "Peripheral idle latency in Connection Intervals"
default 10
config ZMK_SPLIT_BLE_PREF_IDLE_TIMEOUT
int "Peripheral idle supervision timeout in 10ms units"
default 400
endif # ZMK_SPLIT_BLE_PREF_IDLE
endif # ZMK_SPLIT_ROLE_CENTRAL
if !ZMK_SPLIT_ROLE_CENTRAL

1
app/src/split/bluetooth/central.c
View file

@ -1178,7 +1178,6 @@ static void split_central_update_layers_callback(struct k_work *work) {
LOG_DBG("Sent Layers over to peripheral");
raise_zmk_split_peripheral_layer_changed(
(struct zmk_split_peripheral_layer_changed){.layers = layers});
}
}
}

87
app/src/split/bluetooth/central_listener.c Normal file
View file

@ -0,0 +1,87 @@
/*
* Copyright (c) 2022 The ZMK Contributors
*
* SPDX-License-Identifier: MIT
*/
#include <zephyr/logging/log.h>
LOG_MODULE_DECLARE(zmk, CONFIG_ZMK_LOG_LEVEL);
#include <zephyr/bluetooth/bluetooth.h>
#include <zephyr/bluetooth/conn.h>
#include <zmk/event_manager.h>
#include <zmk/events/activity_state_changed.h>
static void set_sleep_params(struct bt_conn *conn, void *data) {
struct bt_conn_info info;
bt_conn_get_info(conn, &info);
if (info.role == BT_CONN_ROLE_CENTRAL) {
int err =
bt_conn_le_param_update(conn, BT_LE_CONN_PARAM(CONFIG_ZMK_SPLIT_BLE_PREF_IDLE_INT,
CONFIG_ZMK_SPLIT_BLE_PREF_IDLE_INT,
CONFIG_ZMK_SPLIT_BLE_PREF_IDLE_LATENCY,
CONFIG_ZMK_SPLIT_BLE_PREF_IDLE_TIMEOUT));
if (err) {
LOG_DBG("Failed to sleep split connection: %d", err);
}
}
}
static void set_wake_params(struct bt_conn *conn, void *data) {
struct bt_conn_info info;
bt_conn_get_info(conn, &info);
if (info.role == BT_CONN_ROLE_CENTRAL) {
int err = bt_conn_le_param_update(
conn,
BT_LE_CONN_PARAM(CONFIG_ZMK_SPLIT_BLE_PREF_INT, CONFIG_ZMK_SPLIT_BLE_PREF_INT,
CONFIG_ZMK_SPLIT_BLE_PREF_LATENCY, CONFIG_ZMK_SPLIT_BLE_PREF_TIMEOUT));
if (err) {
LOG_DBG("Failed to wake up split connection: %d", err);
}
}
}
static void sleep_all() {
LOG_DBG("Setting idle connection parameters on peripherals");
bt_conn_foreach(BT_CONN_TYPE_LE, set_sleep_params, NULL);
}
static void wake_all() {
LOG_DBG("Waking up from idle connection parameters on peripherals");
bt_conn_foreach(BT_CONN_TYPE_LE, set_wake_params, NULL);
}
int central_event_handler(const zmk_event_t *eh) {
struct zmk_activity_state_changed *ev = as_zmk_activity_state_changed(eh);
if (ev == NULL) {
return -ENOTSUP;
}
switch (ev->state) {
case ZMK_ACTIVITY_ACTIVE:
wake_all();
break;
case ZMK_ACTIVITY_IDLE:
sleep_all();
break;
case ZMK_ACTIVITY_SLEEP:
break;
default:
LOG_WRN("Unhandled activity state: %d", ev->state);
return -EINVAL;
}
return 0;
}
ZMK_LISTENER(central, central_event_handler);
ZMK_SUBSCRIPTION(central, zmk_activity_state_changed);