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feature(split): behavior locality support.

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* GATT characteristic allowing passng data + behavior
  label to invoke the behavior on the peripheral side.
* Behaviors have a locality setting to specify where they run.
* Build reset/power/RGB on peripheral.
This commit is contained in:
Pete Johanson
2020-12-20 09:49:42 -05:00
parent c74ae45e17
commit 47f873b038
17 changed files with 247 additions and 20 deletions
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50
app/src/split/bluetooth/service.c
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@@ -15,6 +15,8 @@ LOG_MODULE_DECLARE(zmk, CONFIG_ZMK_LOG_LEVEL);
#include <bluetooth/gatt.h>
#include <bluetooth/uuid.h>
#include <drivers/behavior.h>
#include <zmk/behavior.h>
#include <zmk/matrix.h>
#include <zmk/split/bluetooth/uuid.h>
#include <zmk/split/bluetooth/service.h>
@@ -24,12 +26,57 @@ LOG_MODULE_DECLARE(zmk, CONFIG_ZMK_LOG_LEVEL);
static uint8_t num_of_positions = ZMK_KEYMAP_LEN;
static uint8_t position_state[POS_STATE_LEN];
static struct zmk_split_run_behavior_payload behavior_run_payload;
static ssize_t split_svc_pos_state(struct bt_conn *conn, const struct bt_gatt_attr *attrs,
void *buf, uint16_t len, uint16_t offset) {
return bt_gatt_attr_read(conn, attrs, buf, len, offset, &position_state,
sizeof(position_state));
}
static ssize_t split_svc_run_behavior(struct bt_conn *conn, const struct bt_gatt_attr *attrs,
const void *buf, uint16_t len, uint16_t offset,
uint8_t flags) {
struct zmk_split_run_behavior_payload *payload = attrs->user_data;
uint16_t end_addr = offset + len;
LOG_DBG("offset %d len %d", offset, len);
if (end_addr > sizeof(struct zmk_split_run_behavior_payload)) {
return BT_GATT_ERR(BT_ATT_ERR_INVALID_OFFSET);
}
memcpy(payload + offset, buf, len);
// We run if:
// 1: We've gotten all the position/state/param data.
// 2: We have a null terminated string for the behavior device label.
if ((end_addr > sizeof(struct zmk_split_run_behavior_data)) &&
payload->behavior_dev[end_addr - sizeof(struct zmk_split_run_behavior_data)] == '\0') {
struct zmk_behavior_binding binding = {
.param1 = payload->data.param1,
.param2 = payload->data.param2,
.behavior_dev = payload->behavior_dev,
};
LOG_DBG("INVOKE THE BEHAVIOR: %s with params %d %d", log_strdup(binding.behavior_dev),
binding.param1, binding.param2);
struct zmk_behavior_binding_event event = {.position = payload->data.position,
.timestamp = k_uptime_get()};
int err;
if (payload->data.state > 0) {
err = behavior_keymap_binding_pressed(&binding, event);
} else {
err = behavior_keymap_binding_released(&binding, event);
}
if (err) {
LOG_ERR("Failed to invoke behavior %s: %d", log_strdup(binding.behavior_dev), err);
}
}
return len;
}
static ssize_t split_svc_num_of_positions(struct bt_conn *conn, const struct bt_gatt_attr *attrs,
void *buf, uint16_t len, uint16_t offset) {
return bt_gatt_attr_read(conn, attrs, buf, len, offset, attrs->user_data, sizeof(uint8_t));
@@ -45,6 +92,9 @@ BT_GATT_SERVICE_DEFINE(
BT_GATT_CHRC_READ | BT_GATT_CHRC_NOTIFY, BT_GATT_PERM_READ_ENCRYPT,
split_svc_pos_state, NULL, &position_state),
BT_GATT_CCC(split_svc_pos_state_ccc, BT_GATT_PERM_READ_ENCRYPT | BT_GATT_PERM_WRITE_ENCRYPT),
BT_GATT_CHARACTERISTIC(BT_UUID_DECLARE_128(ZMK_SPLIT_BT_CHAR_RUN_BEHAVIOR_UUID),
BT_GATT_CHRC_WRITE_WITHOUT_RESP, BT_GATT_PERM_WRITE_ENCRYPT, NULL,
split_svc_run_behavior, &behavior_run_payload),
BT_GATT_DESCRIPTOR(BT_UUID_NUM_OF_DIGITALS, BT_GATT_PERM_READ, split_svc_num_of_positions, NULL,
&num_of_positions), );