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#include "hid_service.h"
#include "app_common.h"
#include "ble.h"
#include <furi.h>
#define TAG "BtHid"
typedef struct {
uint16_t svc_handle;
uint16_t protocol_mode_char_handle;
uint16_t report_char_handle;
uint16_t report_ref_desc_handle;
uint16_t report_map_char_handle;
uint16_t keyboard_boot_char_handle;
uint16_t info_char_handle;
uint16_t ctrl_point_char_handle;
} HIDSvc;
static HIDSvc* hid_svc = NULL;
static SVCCTL_EvtAckStatus_t hid_svc_event_handler(void* event) {
SVCCTL_EvtAckStatus_t ret = SVCCTL_EvtNotAck;
hci_event_pckt* event_pckt = (hci_event_pckt*)(((hci_uart_pckt*)event)->data);
evt_blecore_aci* blecore_evt = (evt_blecore_aci*)event_pckt->data;
// aci_gatt_attribute_modified_event_rp0* attribute_modified;
if(event_pckt->evt == HCI_VENDOR_SPECIFIC_DEBUG_EVT_CODE) {
if(blecore_evt->ecode == ACI_GATT_ATTRIBUTE_MODIFIED_VSEVT_CODE) {
// Process modification events
ret = SVCCTL_EvtAckFlowEnable;
} else if(blecore_evt->ecode == ACI_GATT_SERVER_CONFIRMATION_VSEVT_CODE) {
// Process notification confirmation
ret = SVCCTL_EvtAckFlowEnable;
}
}
return ret;
}
void hid_svc_start() {
tBleStatus status;
hid_svc = furi_alloc(sizeof(HIDSvc));
Service_UUID_t svc_uuid = {};
Char_Desc_Uuid_t desc_uuid = {};
Char_UUID_t char_uuid = {};
// Register event handler
SVCCTL_RegisterSvcHandler(hid_svc_event_handler);
// Add service
svc_uuid.Service_UUID_16 = HUMAN_INTERFACE_DEVICE_SERVICE_UUID;
status =
aci_gatt_add_service(UUID_TYPE_16, &svc_uuid, PRIMARY_SERVICE, 30, &hid_svc->svc_handle);
if(status) {
FURI_LOG_E(TAG, "Failed to add HID service: %d", status);
}
// Add Protocol mode characterstics
char_uuid.Char_UUID_16 = PROTOCOL_MODE_CHAR_UUID;
status = aci_gatt_add_char(
hid_svc->svc_handle,
UUID_TYPE_16,
&char_uuid,
1,
CHAR_PROP_READ | CHAR_PROP_WRITE_WITHOUT_RESP,
ATTR_PERMISSION_NONE,
GATT_NOTIFY_ATTRIBUTE_WRITE,
10,
CHAR_VALUE_LEN_CONSTANT,
&hid_svc->protocol_mode_char_handle);
if(status) {
FURI_LOG_E(TAG, "Failed to add protocol mode characteristic: %d", status);
}
// Update Protocol mode characteristic
uint8_t protocol_mode = 1;
status = aci_gatt_update_char_value(
hid_svc->svc_handle, hid_svc->protocol_mode_char_handle, 0, 1, &protocol_mode);
if(status) {
FURI_LOG_E(TAG, "Failed to update protocol mode characteristic: %d", status);
}
// Add Report characterstics
char_uuid.Char_UUID_16 = REPORT_CHAR_UUID;
status = aci_gatt_add_char(
hid_svc->svc_handle,
UUID_TYPE_16,
&char_uuid,
HID_SVC_REPORT_MAX_LEN,
CHAR_PROP_READ | CHAR_PROP_NOTIFY,
ATTR_PERMISSION_NONE,
GATT_DONT_NOTIFY_EVENTS,
10,
CHAR_VALUE_LEN_VARIABLE,
&hid_svc->report_char_handle);
if(status) {
FURI_LOG_E(TAG, "Failed to add report characteristic: %d", status);
}
// Add Report descriptor
uint8_t desc_val[] = {0x00, 0x01};
desc_uuid.Char_UUID_16 = REPORT_REFERENCE_DESCRIPTOR_UUID;
status = aci_gatt_add_char_desc(
hid_svc->svc_handle,
hid_svc->report_char_handle,
UUID_TYPE_16,
&desc_uuid,
HID_SVC_REPORT_REF_LEN,
HID_SVC_REPORT_REF_LEN,
desc_val,
ATTR_PERMISSION_NONE,
ATTR_ACCESS_READ_ONLY,
GATT_DONT_NOTIFY_EVENTS,
MIN_ENCRY_KEY_SIZE,
CHAR_VALUE_LEN_CONSTANT,
&hid_svc->report_ref_desc_handle);
if(status) {
FURI_LOG_E(TAG, "Failed to add report reference descriptor: %d", status);
}
// Add Report Map characteristic
char_uuid.Char_UUID_16 = REPORT_MAP_CHAR_UUID;
status = aci_gatt_add_char(
hid_svc->svc_handle,
UUID_TYPE_16,
&char_uuid,
HID_SVC_REPORT_MAP_MAX_LEN,
CHAR_PROP_READ,
ATTR_PERMISSION_NONE,
GATT_DONT_NOTIFY_EVENTS,
10,
CHAR_VALUE_LEN_VARIABLE,
&hid_svc->report_map_char_handle);
if(status) {
FURI_LOG_E(TAG, "Failed to add report map characteristic: %d", status);
}
// Add Boot Keyboard characteristic
char_uuid.Char_UUID_16 = BOOT_KEYBOARD_INPUT_REPORT_CHAR_UUID;
status = aci_gatt_add_char(
hid_svc->svc_handle,
UUID_TYPE_16,
&char_uuid,
HID_SVC_BOOT_KEYBOARD_INPUT_REPORT_MAX_LEN,
CHAR_PROP_READ | CHAR_PROP_NOTIFY,
ATTR_PERMISSION_NONE,
GATT_NOTIFY_WRITE_REQ_AND_WAIT_FOR_APPL_RESP,
10,
CHAR_VALUE_LEN_VARIABLE,
&hid_svc->keyboard_boot_char_handle);
if(status) {
FURI_LOG_E(TAG, "Failed to add report map characteristic: %d", status);
}
// Add Information characteristic
char_uuid.Char_UUID_16 = HID_INFORMATION_CHAR_UUID;
status = aci_gatt_add_char(
hid_svc->svc_handle,
UUID_TYPE_16,
&char_uuid,
HID_SVC_INFO_LEN,
CHAR_PROP_READ,
ATTR_PERMISSION_NONE,
GATT_DONT_NOTIFY_EVENTS,
10,
CHAR_VALUE_LEN_CONSTANT,
&hid_svc->info_char_handle);
if(status) {
FURI_LOG_E(TAG, "Failed to add information characteristic: %d", status);
}
// Add Control Point characteristic
char_uuid.Char_UUID_16 = HID_CONTROL_POINT_CHAR_UUID;
status = aci_gatt_add_char(
hid_svc->svc_handle,
UUID_TYPE_16,
&char_uuid,
HID_SVC_CONTROL_POINT_LEN,
CHAR_PROP_WRITE_WITHOUT_RESP,
ATTR_PERMISSION_NONE,
GATT_NOTIFY_ATTRIBUTE_WRITE,
10,
CHAR_VALUE_LEN_CONSTANT,
&hid_svc->ctrl_point_char_handle);
if(status) {
FURI_LOG_E(TAG, "Failed to add control point characteristic: %d", status);
}
}
bool hid_svc_update_report_map(uint8_t* data, uint16_t len) {
furi_assert(data);
furi_assert(hid_svc);
tBleStatus status = aci_gatt_update_char_value(
hid_svc->svc_handle, hid_svc->report_map_char_handle, 0, len, data);
if(status) {
FURI_LOG_E(TAG, "Failed updating report map characteristic");
return false;
}
return true;
}
bool hid_svc_update_input_report(uint8_t* data, uint16_t len) {
furi_assert(data);
furi_assert(hid_svc);
tBleStatus status =
aci_gatt_update_char_value(hid_svc->svc_handle, hid_svc->report_char_handle, 0, len, data);
if(status) {
FURI_LOG_E(TAG, "Failed updating report characteristic");
return false;
}
return true;
}
bool hid_svc_update_info(uint8_t* data, uint16_t len) {
furi_assert(data);
furi_assert(hid_svc);
tBleStatus status =
aci_gatt_update_char_value(hid_svc->svc_handle, hid_svc->info_char_handle, 0, len, data);
if(status) {
FURI_LOG_E(TAG, "Failed updating info characteristic");
return false;
}
return true;
}
bool hid_svc_is_started() {
return hid_svc != NULL;
}
void hid_svc_stop() {
tBleStatus status;
if(hid_svc) {
// Delete characteristics
status = aci_gatt_del_char(hid_svc->svc_handle, hid_svc->report_map_char_handle);
if(status) {
FURI_LOG_E(TAG, "Failed to delete Report Map characteristic: %d", status);
}
status = aci_gatt_del_char(hid_svc->svc_handle, hid_svc->report_char_handle);
if(status) {
FURI_LOG_E(TAG, "Failed to delete Report characteristic: %d", status);
}
status = aci_gatt_del_char(hid_svc->svc_handle, hid_svc->protocol_mode_char_handle);
if(status) {
FURI_LOG_E(TAG, "Failed to delete Protocol Mode characteristic: %d", status);
}
status = aci_gatt_del_char(hid_svc->svc_handle, hid_svc->keyboard_boot_char_handle);
if(status) {
FURI_LOG_E(TAG, "Failed to delete Keyboard Boot characteristic: %d", status);
}
status = aci_gatt_del_char(hid_svc->svc_handle, hid_svc->info_char_handle);
if(status) {
FURI_LOG_E(TAG, "Failed to delete Information characteristic: %d", status);
}
status = aci_gatt_del_char(hid_svc->svc_handle, hid_svc->ctrl_point_char_handle);
if(status) {
FURI_LOG_E(TAG, "Failed to delete Control Point characteristic: %d", status);
}
// Delete service
status = aci_gatt_del_service(hid_svc->svc_handle);
if(status) {
FURI_LOG_E(TAG, "Failed to delete HID service: %d", status);
}
// Delete buffer size mutex
free(hid_svc);
hid_svc = NULL;
}
}
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