333 lines
12 KiB
C
333 lines
12 KiB
C
#include "hid_service.h"
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#include "app_common.h"
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#include <ble/ble.h>
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#include <furi.h>
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#define TAG "BtHid"
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typedef struct {
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uint16_t svc_handle;
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uint16_t protocol_mode_char_handle;
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uint16_t report_char_handle[HID_SVC_REPORT_COUNT];
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uint16_t report_ref_desc_handle[HID_SVC_REPORT_COUNT];
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uint16_t report_map_char_handle;
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uint16_t info_char_handle;
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uint16_t ctrl_point_char_handle;
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} HIDSvc;
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static HIDSvc* hid_svc = NULL;
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static SVCCTL_EvtAckStatus_t hid_svc_event_handler(void* event) {
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SVCCTL_EvtAckStatus_t ret = SVCCTL_EvtNotAck;
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hci_event_pckt* event_pckt = (hci_event_pckt*)(((hci_uart_pckt*)event)->data);
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evt_blecore_aci* blecore_evt = (evt_blecore_aci*)event_pckt->data;
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// aci_gatt_attribute_modified_event_rp0* attribute_modified;
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if(event_pckt->evt == HCI_VENDOR_SPECIFIC_DEBUG_EVT_CODE) {
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if(blecore_evt->ecode == ACI_GATT_ATTRIBUTE_MODIFIED_VSEVT_CODE) {
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// Process modification events
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ret = SVCCTL_EvtAckFlowEnable;
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} else if(blecore_evt->ecode == ACI_GATT_SERVER_CONFIRMATION_VSEVT_CODE) {
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// Process notification confirmation
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ret = SVCCTL_EvtAckFlowEnable;
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}
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}
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return ret;
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}
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void hid_svc_start() {
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tBleStatus status;
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hid_svc = malloc(sizeof(HIDSvc));
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Service_UUID_t svc_uuid = {};
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Char_Desc_Uuid_t desc_uuid = {};
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Char_UUID_t char_uuid = {};
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// Register event handler
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SVCCTL_RegisterSvcHandler(hid_svc_event_handler);
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// Add service
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svc_uuid.Service_UUID_16 = HUMAN_INTERFACE_DEVICE_SERVICE_UUID;
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/**
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* Add Human Interface Device Service
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*/
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status = aci_gatt_add_service(
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UUID_TYPE_16,
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&svc_uuid,
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PRIMARY_SERVICE,
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2 + /* protocol mode */
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(4 * HID_SVC_INPUT_REPORT_COUNT) + (3 * HID_SVC_OUTPUT_REPORT_COUNT) +
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(3 * HID_SVC_FEATURE_REPORT_COUNT) + 1 + 2 + 2 +
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2, /* Service + Report Map + HID Information + HID Control Point */
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&hid_svc->svc_handle);
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if(status) {
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FURI_LOG_E(TAG, "Failed to add HID service: %d", status);
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}
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// Add Protocol mode characteristics
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char_uuid.Char_UUID_16 = PROTOCOL_MODE_CHAR_UUID;
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status = aci_gatt_add_char(
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hid_svc->svc_handle,
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UUID_TYPE_16,
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&char_uuid,
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1,
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CHAR_PROP_READ | CHAR_PROP_WRITE_WITHOUT_RESP,
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ATTR_PERMISSION_NONE,
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GATT_NOTIFY_ATTRIBUTE_WRITE,
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10,
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CHAR_VALUE_LEN_CONSTANT,
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&hid_svc->protocol_mode_char_handle);
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if(status) {
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FURI_LOG_E(TAG, "Failed to add protocol mode characteristic: %d", status);
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}
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// Update Protocol mode characteristic
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uint8_t protocol_mode = 1;
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status = aci_gatt_update_char_value(
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hid_svc->svc_handle, hid_svc->protocol_mode_char_handle, 0, 1, &protocol_mode);
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if(status) {
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FURI_LOG_E(TAG, "Failed to update protocol mode characteristic: %d", status);
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}
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#if(HID_SVC_REPORT_COUNT != 0)
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for(uint8_t i = 0; i < HID_SVC_REPORT_COUNT; i++) {
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if(i < HID_SVC_INPUT_REPORT_COUNT) { //-V547
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uint8_t buf[2] = {i + 1, 1}; // 1 input
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char_uuid.Char_UUID_16 = REPORT_CHAR_UUID;
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status = aci_gatt_add_char(
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hid_svc->svc_handle,
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UUID_TYPE_16,
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&char_uuid,
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HID_SVC_REPORT_MAX_LEN,
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CHAR_PROP_READ | CHAR_PROP_NOTIFY,
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ATTR_PERMISSION_NONE,
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GATT_DONT_NOTIFY_EVENTS,
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10,
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CHAR_VALUE_LEN_VARIABLE,
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&(hid_svc->report_char_handle[i]));
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if(status) {
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FURI_LOG_E(TAG, "Failed to add report characteristic: %d", status);
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}
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desc_uuid.Char_UUID_16 = REPORT_REFERENCE_DESCRIPTOR_UUID;
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status = aci_gatt_add_char_desc(
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hid_svc->svc_handle,
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hid_svc->report_char_handle[i],
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UUID_TYPE_16,
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&desc_uuid,
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HID_SVC_REPORT_REF_LEN,
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HID_SVC_REPORT_REF_LEN,
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buf,
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ATTR_PERMISSION_NONE,
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ATTR_ACCESS_READ_WRITE,
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GATT_DONT_NOTIFY_EVENTS,
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MIN_ENCRY_KEY_SIZE,
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CHAR_VALUE_LEN_CONSTANT,
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&(hid_svc->report_ref_desc_handle[i]));
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if(status) {
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FURI_LOG_E(TAG, "Failed to add report reference descriptor: %d", status);
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}
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} else if((i - HID_SVC_INPUT_REPORT_COUNT) < HID_SVC_OUTPUT_REPORT_COUNT) {
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uint8_t buf[2] = {i + 1, 2}; // 2 output
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char_uuid.Char_UUID_16 = REPORT_CHAR_UUID;
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status = aci_gatt_add_char(
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hid_svc->svc_handle,
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UUID_TYPE_16,
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&char_uuid,
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HID_SVC_REPORT_MAX_LEN,
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CHAR_PROP_READ | CHAR_PROP_NOTIFY,
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ATTR_PERMISSION_NONE,
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GATT_DONT_NOTIFY_EVENTS,
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10,
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CHAR_VALUE_LEN_VARIABLE,
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&(hid_svc->report_char_handle[i]));
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if(status) {
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FURI_LOG_E(TAG, "Failed to add report characteristic: %d", status);
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}
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desc_uuid.Char_UUID_16 = REPORT_REFERENCE_DESCRIPTOR_UUID;
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status = aci_gatt_add_char_desc(
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hid_svc->svc_handle,
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hid_svc->report_char_handle[i],
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UUID_TYPE_16,
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&desc_uuid,
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HID_SVC_REPORT_REF_LEN,
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HID_SVC_REPORT_REF_LEN,
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buf,
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ATTR_PERMISSION_NONE,
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ATTR_ACCESS_READ_WRITE,
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GATT_DONT_NOTIFY_EVENTS,
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MIN_ENCRY_KEY_SIZE,
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CHAR_VALUE_LEN_CONSTANT,
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&(hid_svc->report_ref_desc_handle[i]));
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if(status) {
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FURI_LOG_E(TAG, "Failed to add report reference descriptor: %d", status);
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}
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} else {
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uint8_t buf[2] = {i + 1, 3}; // 3 feature
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char_uuid.Char_UUID_16 = REPORT_CHAR_UUID;
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status = aci_gatt_add_char(
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hid_svc->svc_handle,
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UUID_TYPE_16,
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&char_uuid,
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HID_SVC_REPORT_MAX_LEN,
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CHAR_PROP_READ | CHAR_PROP_NOTIFY,
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ATTR_PERMISSION_NONE,
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GATT_DONT_NOTIFY_EVENTS,
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10,
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CHAR_VALUE_LEN_VARIABLE,
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&(hid_svc->report_char_handle[i]));
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if(status) {
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FURI_LOG_E(TAG, "Failed to add report characteristic: %d", status);
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}
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desc_uuid.Char_UUID_16 = REPORT_REFERENCE_DESCRIPTOR_UUID;
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status = aci_gatt_add_char_desc(
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hid_svc->svc_handle,
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hid_svc->report_char_handle[i],
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UUID_TYPE_16,
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&desc_uuid,
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HID_SVC_REPORT_REF_LEN,
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HID_SVC_REPORT_REF_LEN,
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buf,
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ATTR_PERMISSION_NONE,
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ATTR_ACCESS_READ_WRITE,
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GATT_DONT_NOTIFY_EVENTS,
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MIN_ENCRY_KEY_SIZE,
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CHAR_VALUE_LEN_CONSTANT,
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&(hid_svc->report_ref_desc_handle[i]));
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if(status) {
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FURI_LOG_E(TAG, "Failed to add report reference descriptor: %d", status);
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}
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}
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}
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#endif
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// Add Report Map characteristic
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char_uuid.Char_UUID_16 = REPORT_MAP_CHAR_UUID;
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status = aci_gatt_add_char(
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hid_svc->svc_handle,
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UUID_TYPE_16,
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&char_uuid,
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HID_SVC_REPORT_MAP_MAX_LEN,
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CHAR_PROP_READ,
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ATTR_PERMISSION_NONE,
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GATT_DONT_NOTIFY_EVENTS,
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10,
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CHAR_VALUE_LEN_VARIABLE,
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&hid_svc->report_map_char_handle);
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if(status) {
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FURI_LOG_E(TAG, "Failed to add report map characteristic: %d", status);
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}
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// Add Information characteristic
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char_uuid.Char_UUID_16 = HID_INFORMATION_CHAR_UUID;
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status = aci_gatt_add_char(
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hid_svc->svc_handle,
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UUID_TYPE_16,
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&char_uuid,
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HID_SVC_INFO_LEN,
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CHAR_PROP_READ,
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ATTR_PERMISSION_NONE,
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GATT_DONT_NOTIFY_EVENTS,
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10,
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CHAR_VALUE_LEN_CONSTANT,
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&hid_svc->info_char_handle);
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if(status) {
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FURI_LOG_E(TAG, "Failed to add information characteristic: %d", status);
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}
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// Add Control Point characteristic
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char_uuid.Char_UUID_16 = HID_CONTROL_POINT_CHAR_UUID;
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status = aci_gatt_add_char(
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hid_svc->svc_handle,
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UUID_TYPE_16,
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&char_uuid,
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HID_SVC_CONTROL_POINT_LEN,
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CHAR_PROP_WRITE_WITHOUT_RESP,
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ATTR_PERMISSION_NONE,
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GATT_NOTIFY_ATTRIBUTE_WRITE,
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10,
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CHAR_VALUE_LEN_CONSTANT,
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&hid_svc->ctrl_point_char_handle);
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if(status) {
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FURI_LOG_E(TAG, "Failed to add control point characteristic: %d", status);
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}
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}
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bool hid_svc_update_report_map(const uint8_t* data, uint16_t len) {
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furi_assert(data);
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furi_assert(hid_svc);
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tBleStatus status = aci_gatt_update_char_value(
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hid_svc->svc_handle, hid_svc->report_map_char_handle, 0, len, data);
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if(status) {
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FURI_LOG_E(TAG, "Failed updating report map characteristic: %d", status);
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return false;
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}
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return true;
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}
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bool hid_svc_update_input_report(uint8_t input_report_num, uint8_t* data, uint16_t len) {
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furi_assert(data);
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furi_assert(hid_svc);
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tBleStatus status = aci_gatt_update_char_value(
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hid_svc->svc_handle, hid_svc->report_char_handle[input_report_num], 0, len, data);
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if(status) {
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FURI_LOG_E(TAG, "Failed updating report characteristic: %d", status);
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return false;
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}
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return true;
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}
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bool hid_svc_update_info(uint8_t* data, uint16_t len) {
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furi_assert(data);
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furi_assert(hid_svc);
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tBleStatus status =
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aci_gatt_update_char_value(hid_svc->svc_handle, hid_svc->info_char_handle, 0, len, data);
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if(status) {
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FURI_LOG_E(TAG, "Failed updating info characteristic: %d", status);
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return false;
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}
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return true;
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}
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bool hid_svc_is_started() {
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return hid_svc != NULL;
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}
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void hid_svc_stop() {
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tBleStatus status;
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if(hid_svc) {
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// Delete characteristics
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status = aci_gatt_del_char(hid_svc->svc_handle, hid_svc->report_map_char_handle);
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if(status) {
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FURI_LOG_E(TAG, "Failed to delete Report Map characteristic: %d", status);
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}
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#if(HID_SVC_INPUT_REPORT_COUNT != 0)
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for(uint8_t i = 0; i < HID_SVC_REPORT_COUNT; i++) {
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status = aci_gatt_del_char(hid_svc->svc_handle, hid_svc->report_char_handle[i]);
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if(status) {
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FURI_LOG_E(TAG, "Failed to delete Report characteristic: %d", status);
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}
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}
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#endif
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status = aci_gatt_del_char(hid_svc->svc_handle, hid_svc->protocol_mode_char_handle);
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if(status) {
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FURI_LOG_E(TAG, "Failed to delete Protocol Mode characteristic: %d", status);
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}
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status = aci_gatt_del_char(hid_svc->svc_handle, hid_svc->info_char_handle);
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if(status) {
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FURI_LOG_E(TAG, "Failed to delete Information characteristic: %d", status);
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}
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status = aci_gatt_del_char(hid_svc->svc_handle, hid_svc->ctrl_point_char_handle);
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if(status) {
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FURI_LOG_E(TAG, "Failed to delete Control Point characteristic: %d", status);
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}
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// Delete service
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status = aci_gatt_del_service(hid_svc->svc_handle);
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if(status) {
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FURI_LOG_E(TAG, "Failed to delete HID service: %d", status);
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}
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// Delete buffer size mutex
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free(hid_svc);
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hid_svc = NULL;
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}
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}
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