Hi,
I try to implement custom characteristic. But I notice when I use read auth or normal read event, the handle value is zero. I have linked the handl to the add characteristic.
case BLE_GATTS_EVT_RW_AUTHORIZE_REQUEST:
printf("%s: BLE_GATTS_EVT_RW_AUTHORIZE_REQUEST\n", __FUNCTION__);
if((p_ble_evt->evt.gatts_evt.params.authorize_request.type == BLE_GATTS_AUTHORIZE_TYPE_READ)&&
(p_ble_evt->evt.gatts_evt.params.authorize_request.request.read.handle == p_mwds->event_data_count_handles.value_handle))
{
printf("1:%d\r\n",p_ble_evt->evt.gatts_evt.params.authorize_request.request.read.handle);
printf("2:%d\r\n",p_mwds->event_data_count_handles.value_handle);
printf("%s: BLE_GATTS_EVT_READ_AUTHORIZE_REQUEST\n", __FUNCTION__);
ble_gatts_rw_authorize_reply_params_t auth_reply;
auth_reply.type = BLE_GATTS_AUTHORIZE_TYPE_READ;
auth_reply.params.read.gatt_status = BLE_GATT_STATUS_SUCCESS;
auth_reply.params.read.update = 0;
auth_reply.params.read.offset = 0;
auth_reply.params.read.len = 1;
//auth_reply.params.read.len = sizeof(p_my_data->my_char);
auth_reply.params.read.p_data = (uint8_t*)&my_char;
//auth_reply.params.read.p_data = (uint8_t*)&p_my_data->my_char;
sd_ble_gatts_rw_authorize_reply(p_ble_evt->evt.gatts_evt.conn_handle, &auth_reply);
//on_read_auth(p_ble_evt);
//case BLE_GATTS_AUTHORIZE_TYPE_WRITE:
//printf("%s: BLE_GATTS_EVT_WRITE_AUTHORIZE_REQUEST\n", __FUNCTION__);
//on_write_auth(p_ble_evt);
}
break;
static uint32_t read_only_char_add(ble_mwds_t * p_mwds, const ble_mwds_init_t * p_mwds_init, ble_gatts_char_handles_t * p_char_handle, uint16_t uuid)
{
ble_gatts_char_md_t char_md;
ble_gatts_attr_md_t cccd_md;
ble_gatts_attr_t attr_char_value;
ble_uuid_t ble_uuid;
ble_gatts_attr_md_t attr_md;
// Add Custom Value characteristic
memset(&cccd_md, 0, sizeof(cccd_md));
// Read operation on cccd should be possible without authentication.
BLE_GAP_CONN_SEC_MODE_SET_OPEN(&cccd_md.read_perm);
cccd_md.write_perm = p_mwds_init->custom_value_char_attr_md.cccd_write_perm;
cccd_md.vloc = BLE_GATTS_VLOC_STACK;
memset(&char_md, 0, sizeof(char_md));
char_md.char_props.read = 1;
char_md.char_props.write = 0;
char_md.char_props.notify = 0;
char_md.p_char_user_desc = NULL;
char_md.p_char_pf = NULL;
char_md.p_user_desc_md = NULL;
char_md.p_cccd_md = &cccd_md;
char_md.p_sccd_md = NULL;
ble_uuid.type = p_mwds->uuid_type;
ble_uuid.uuid = uuid; /* MWDS: JUST A PLACEHOLDER FOR NOW! */
memset(&attr_md, 0, sizeof(attr_md));
attr_md.read_perm = p_mwds_init->custom_value_char_attr_md.read_perm;
attr_md.write_perm = p_mwds_init->custom_value_char_attr_md.write_perm;
attr_md.vloc = BLE_GATTS_VLOC_STACK;
attr_md.rd_auth = 1;
attr_md.wr_auth = 0;
attr_md.vlen = 1;
memset(&attr_char_value, 0, sizeof(attr_char_value));
attr_char_value.p_uuid = &ble_uuid;
attr_char_value.p_attr_md = &attr_md;
attr_char_value.init_len = sizeof(uint8_t);
attr_char_value.init_offs = 0;
attr_char_value.max_len = sizeof(uint8_t);
return sd_ble_gatts_characteristic_add(p_mwds->service_handle, &char_md,
&attr_char_value,
p_char_handle);
}
read_only_char_add(p_mwds, p_mwds_init, MWDS_EVENT_COUNT_CHAR_UUID, &p_mwds->event_data_count_handles);
struct ble_mwds_s
{
ble_mwds_evt_handler_t evt_handler;
uint16_t service_handle;
ble_gatts_char_handles_t custom_value_handles;
ble_gatts_char_handles_t event_data_count_handles;
ble_gatts_char_handles_t event_data_handles;
ble_gatts_char_handles_t debug_data_count_handles;
ble_gatts_char_handles_t debug_data_handles;
ble_gatts_char_handles_t index_handler;
ble_gatts_char_handles_t value_handler;
ble_gatts_char_handles_t device_table_handler;
uint16_t conn_handle;
uint8_t uuid_type;
};
