/**@brief Function for initializing the Advertising functionality.
*
* @details Encodes the required advertising data and passes it to the stack.
* Also builds a structure to be passed to the stack when starting advertising.
*/
static void advertising_init(void)
{
uint32_t err_code;
ble_advdata_t advdata;
uint8_t flags = BLE_GAP_ADV_FLAG_BR_EDR_NOT_SUPPORTED;
ble_advdata_manuf_data_t manuf_specific_data;
manuf_specific_data.company_identifier = APP_COMPANY_IDENTIFIER;
#if defined(USE_UICR_FOR_MAJ_MIN_VALUES)
// If USE_UICR_FOR_MAJ_MIN_VALUES is defined, the major and minor values will be read from the
// UICR instead of using the default values. The major and minor values obtained from the UICR
// are encoded into advertising data in big endian order (MSB First).
// To set the UICR used by this example to a desired value, write to the address 0x10001080
// using the nrfjprog tool. The command to be used is as follows.
// nrfjprog --snr <Segger-chip-Serial-Number> --memwr 0x10001080 --val <your major/minor value>
// For example, for a major value and minor value of 0xabcd and 0x0102 respectively, the
// the following command should be used.
// nrfjprog --snr <Segger-chip-Serial-Number> --memwr 0x10001080 --val 0xabcd0102
uint16_t major_value = ((*(uint32_t *)UICR_ADDRESS) & 0xFFFF0000) >> 16;
uint16_t minor_value = ((*(uint32_t *)UICR_ADDRESS) & 0x0000FFFF);
uint8_t index = MAJ_VAL_OFFSET_IN_BEACON_INFO;
m_beacon_info[index++] = MSB_16(major_value);
m_beacon_info[index++] = LSB_16(major_value);
m_beacon_info[index++] = MSB_16(minor_value);
m_beacon_info[index++] = LSB_16(minor_value);
#endif
manuf_specific_data.data.p_data = (uint8_t *) m_beacon_info;
manuf_specific_data.data.size = APP_BEACON_INFO_LENGTH;
// Build and set advertising data.
memset(&advdata, 0, sizeof(advdata));
advdata.name_type = BLE_ADVDATA_NO_NAME;
advdata.flags = flags;
advdata.p_manuf_specific_data = &manuf_specific_data;
err_code = ble_advdata_set(&advdata, NULL);
APP_ERROR_CHECK(err_code);
// Initialize advertising parameters (used when starting advertising).
memset(&m_adv_params, 0, sizeof(m_adv_params));
m_adv_params.type = BLE_GAP_ADV_TYPE_ADV_NONCONN_IND;
m_adv_params.p_peer_addr = NULL; // Undirected advertisement.
m_adv_params.fp = BLE_GAP_ADV_FP_ANY;
m_adv_params.interval = NON_CONNECTABLE_ADV_INTERVAL;
m_adv_params.timeout = APP_CFG_NON_CONN_ADV_TIMEOUT;
}
uint32_t pack_uint16(uint16_t val,
uint32_t buffer_len,
uint8_t * const buffer,
uint32_t * const p_offset)
{
uint32_t err_code = NRF_ERROR_DATA_SIZE;
if (buffer_len > (*p_offset))
{
const uint32_t available_len = buffer_len - (*p_offset);
MQTT_TRC("[MQTT]: << pack_uint16 V:%04x BL:%08x, B:%p, O:%08x A:%08x\r\n",
val, buffer_len, buffer, (*p_offset), available_len);
if (available_len >= SIZE_OF_UINT16)
{
// Pack value.
buffer[(*p_offset)] = MSB_16(val);
buffer[(*p_offset)+1] = LSB_16(val);
// Increment offset.
(*p_offset) += SIZE_OF_UINT16;
// Indicate success.
err_code = NRF_SUCCESS;
}
}
return err_code;
}
/**
* @brief @ref app_usbd_class_methods_t::feed_descriptors
*/
static bool nrf_dfu_trigger_feed_descriptors(app_usbd_class_descriptor_ctx_t * p_ctx,
app_usbd_class_inst_t const * p_inst,
uint8_t * p_buff,
size_t max_size)
{
static app_usbd_class_iface_conf_t const * p_cur_iface = NULL;
p_cur_iface = app_usbd_class_iface_get(p_inst, 0);
app_usbd_nrf_dfu_trigger_t const * p_dfu = nrf_dfu_trigger_get(p_inst);
APP_USBD_CLASS_DESCRIPTOR_BEGIN(p_ctx, p_buff, max_size)
/* INTERFACE DESCRIPTOR */
APP_USBD_CLASS_DESCRIPTOR_WRITE(sizeof(app_usbd_descriptor_iface_t)); // bLength
APP_USBD_CLASS_DESCRIPTOR_WRITE(APP_USBD_DESCRIPTOR_INTERFACE); // bDescriptorType
APP_USBD_CLASS_DESCRIPTOR_WRITE(app_usbd_class_iface_number_get(p_cur_iface)); // bInterfaceNumber
APP_USBD_CLASS_DESCRIPTOR_WRITE(0x00); // bAlternateSetting
APP_USBD_CLASS_DESCRIPTOR_WRITE(0); // bNumEndpoints
APP_USBD_CLASS_DESCRIPTOR_WRITE(APP_USBD_NRF_DFU_TRIGGER_CLASS); // bInterfaceClass
APP_USBD_CLASS_DESCRIPTOR_WRITE(APP_USBD_NRF_DFU_TRIGGER_SUBCLASS); // bInterfaceSubClass
APP_USBD_CLASS_DESCRIPTOR_WRITE(APP_USBD_NRF_DFU_TRIGGER_PROTOCOL_RUNTIME); // bInterfaceProtocol
APP_USBD_CLASS_DESCRIPTOR_WRITE(0x00); // iInterface
/* FUNCTIONAL DESCRIPTOR */
APP_USBD_CLASS_DESCRIPTOR_WRITE(sizeof(app_usbd_nrf_dfu_trigger_desc_func_t)); // bFunctionLength
APP_USBD_CLASS_DESCRIPTOR_WRITE(APP_USBD_NRF_DFU_TRIGGER_CS_FUNCTIONAL); // bDescriptorType
APP_USBD_CLASS_DESCRIPTOR_WRITE(APP_USBD_NRF_DFU_TRIGGER_BIT_CAN_DNLOAD |
APP_USBD_NRF_DFU_TRIGGER_BIT_WILL_DETACH); // bmAttribute
APP_USBD_CLASS_DESCRIPTOR_WRITE(LSB_16(p_dfu->specific.inst.detach_timeout)); // wDetachTimeOut LSB
APP_USBD_CLASS_DESCRIPTOR_WRITE(MSB_16(p_dfu->specific.inst.detach_timeout)); // wDetachTimeOut MSB
APP_USBD_CLASS_DESCRIPTOR_WRITE(LSB_16(p_dfu->specific.inst.transfer_size)); // wTransferSize LSB
APP_USBD_CLASS_DESCRIPTOR_WRITE(MSB_16(p_dfu->specific.inst.transfer_size)); // wTransferSize MSB
APP_USBD_CLASS_DESCRIPTOR_WRITE(LSB_16(p_dfu->specific.inst.bcd_dfu)); // bcdDFUVersion LSB
APP_USBD_CLASS_DESCRIPTOR_WRITE(MSB_16(p_dfu->specific.inst.bcd_dfu)); // bcdDFUVersion MSB
APP_USBD_CLASS_DESCRIPTOR_END();
}
/**@brief Function for the Advertising functionality initialization.
*
* @details Encodes the required advertising data and passes it to the stack.
* The advertising data encoded here is specific for DFU.
* Setting advertising data can by done by calling @ref ble_advdata_set.
*/
static uint32_t advertising_init(uint8_t adv_flags)
{
uint32_t err_code;
uint16_t len_advdata = 9;
uint16_t max_device_name_length = MAX_ADV_DATA_LENGTH - len_advdata;
uint16_t actual_device_name_length = max_device_name_length;
uint8_t p_encoded_advdata[MAX_ADV_DATA_LENGTH];
// Encode flags.
p_encoded_advdata[0] = 0x2;
p_encoded_advdata[1] = BLE_GAP_AD_TYPE_FLAGS;
p_encoded_advdata[2] = adv_flags;
// Encode 'more available' uuid list.
p_encoded_advdata[3] = 0x3;
p_encoded_advdata[4] = BLE_GAP_AD_TYPE_16BIT_SERVICE_UUID_MORE_AVAILABLE;
p_encoded_advdata[5] = LSB_16(BLE_DFU_SERVICE_UUID);
p_encoded_advdata[6] = MSB_16(BLE_DFU_SERVICE_UUID);
// Get GAP device name and length
err_code = sd_ble_gap_device_name_get(&p_encoded_advdata[9], &actual_device_name_length);
if (err_code != NRF_SUCCESS)
{
return err_code;
}
// Set GAP device in advertising data.
if (actual_device_name_length <= max_device_name_length)
{
p_encoded_advdata[7] = actual_device_name_length + 1; // (actual_length + ADV_AD_TYPE_FIELD_SIZE(1))
p_encoded_advdata[8] = BLE_GAP_AD_TYPE_COMPLETE_LOCAL_NAME;
len_advdata += actual_device_name_length;
}
else
{
// Must use a shorter advertising name than the actual name of the device
p_encoded_advdata[7] = max_device_name_length + 1; // (length + ADV_AD_TYPE_FIELD_SIZE(1))
p_encoded_advdata[8] = BLE_GAP_AD_TYPE_SHORT_LOCAL_NAME;
len_advdata = MAX_ADV_DATA_LENGTH;
}
return sd_ble_gap_adv_data_set(p_encoded_advdata, len_advdata, NULL, 0);
}
/**@brief Function for creating a TX message for writing a CCCD.
*/
static uint32_t cccd_configure(uint16_t conn_handle, uint16_t handle_cccd, bool enable)
{
tx_message_t * p_msg;
uint16_t cccd_val = enable ? BLE_GATT_HVX_NOTIFICATION : 0;
p_msg = &m_tx_buffer[m_tx_insert_index++];
m_tx_insert_index &= TX_BUFFER_MASK;
p_msg->req.write_req.gattc_params.handle = handle_cccd;
p_msg->req.write_req.gattc_params.len = WRITE_MESSAGE_LENGTH;
p_msg->req.write_req.gattc_params.p_value = p_msg->req.write_req.gattc_value;
p_msg->req.write_req.gattc_params.offset = 0;
p_msg->req.write_req.gattc_params.write_op = BLE_GATT_OP_WRITE_REQ;
p_msg->req.write_req.gattc_value[0] = LSB_16(cccd_val);
p_msg->req.write_req.gattc_value[1] = MSB_16(cccd_val);
p_msg->conn_handle = conn_handle;
p_msg->type = WRITE_REQ;
tx_buffer_process();
return NRF_SUCCESS;
}
static bool audio_feed_descriptors(app_usbd_class_descriptor_ctx_t * p_ctx,
app_usbd_class_inst_t const * p_inst,
uint8_t * p_buff,
size_t max_size)
{
static uint8_t ifaces = 0;
ifaces = app_usbd_class_iface_count_get(p_inst);
ASSERT(ifaces == 2);
app_usbd_audio_t const * p_audio = audio_get(p_inst);
APP_USBD_CLASS_DESCRIPTOR_BEGIN(p_ctx, p_buff, max_size);
/* CONTROL INTERFACE DESCRIPTOR */
APP_USBD_CLASS_DESCRIPTOR_WRITE(0x09); // bLength
APP_USBD_CLASS_DESCRIPTOR_WRITE(APP_USBD_DESCRIPTOR_INTERFACE); // bDescriptorType = Interface
static app_usbd_class_iface_conf_t const * p_cur_iface = NULL;
p_cur_iface = app_usbd_class_iface_get(p_inst, 0);
APP_USBD_CLASS_DESCRIPTOR_WRITE(app_usbd_class_iface_number_get(p_cur_iface)); // bInterfaceNumber
APP_USBD_CLASS_DESCRIPTOR_WRITE(0x00); // bAlternateSetting
APP_USBD_CLASS_DESCRIPTOR_WRITE(app_usbd_class_iface_ep_count_get(p_cur_iface)); // bNumEndpoints
APP_USBD_CLASS_DESCRIPTOR_WRITE(APP_USBD_AUDIO_CLASS); // bInterfaceClass = Audio
APP_USBD_CLASS_DESCRIPTOR_WRITE(APP_USBD_AUDIO_SUBCLASS_AUDIOCONTROL); // bInterfaceSubclass (Audio Control)
APP_USBD_CLASS_DESCRIPTOR_WRITE(APP_USBD_AUDIO_CLASS_PROTOCOL_UNDEFINED); // bInterfaceProtocol
APP_USBD_CLASS_DESCRIPTOR_WRITE(0x00); // iInterface
/* HEADER INTERFACE */
APP_USBD_CLASS_DESCRIPTOR_WRITE(0x09); // bLength
APP_USBD_CLASS_DESCRIPTOR_WRITE(APP_USBD_AUDIO_DESCRIPTOR_INTERFACE); // bDescriptorType = Audio Interfaces
APP_USBD_CLASS_DESCRIPTOR_WRITE(APP_USBD_AUDIO_AC_IFACE_SUBTYPE_HEADER); // bDescriptorSubtype = Header
APP_USBD_CLASS_DESCRIPTOR_WRITE(LSB_16(0x0100)); // bcdADC LSB
APP_USBD_CLASS_DESCRIPTOR_WRITE(MSB_16(0x0100)); // bcdADC MSB
static uint16_t header_desc_len = 0;
header_desc_len = 9 + audio_get_feature_descriptor_size(p_inst) +
audio_get_input_descriptor_size(p_inst) + audio_get_output_descriptor_size(
p_inst);
APP_USBD_CLASS_DESCRIPTOR_WRITE(LSB_16(header_desc_len)); // wTotalLength LSB
APP_USBD_CLASS_DESCRIPTOR_WRITE(MSB_16(header_desc_len)); // wTotalLength MSB
APP_USBD_CLASS_DESCRIPTOR_WRITE(0x01); // bInCollection
APP_USBD_CLASS_DESCRIPTOR_WRITE(audio_get_control_interface_number(p_inst) + 1); // baInterfaceNr(1)
/* INPUT TERMINAL DESCRIPTOR */
static uint32_t cur_byte = 0;
static size_t input_desc_size = 0;
input_desc_size = audio_get_input_descriptor_size(p_inst);
for (cur_byte = 0; cur_byte < input_desc_size; cur_byte++)
{
APP_USBD_CLASS_DESCRIPTOR_WRITE(audio_get_input_descriptor_data(p_inst, cur_byte));
}
/* FEATURE UNIT DESCRIPTOR */
static size_t feature_desc_size = 0;
feature_desc_size = audio_get_feature_descriptor_size(p_inst);
for (cur_byte = 0; cur_byte < feature_desc_size; cur_byte++)
{
APP_USBD_CLASS_DESCRIPTOR_WRITE(audio_get_feature_descriptor_data(p_inst, cur_byte));
}
/* OUTPUT TERMINAL DESCRIPTOR */
static size_t output_desc_size = 0;
output_desc_size = audio_get_output_descriptor_size(p_inst);
for (cur_byte = 0; cur_byte < output_desc_size; cur_byte++)
{
APP_USBD_CLASS_DESCRIPTOR_WRITE(audio_get_output_descriptor_data(p_inst, cur_byte));
}
p_cur_iface++;
/* STREAM INTERFACE DESCRIPTOR ALT 0 */
APP_USBD_CLASS_DESCRIPTOR_WRITE(0x09); // bLength
APP_USBD_CLASS_DESCRIPTOR_WRITE(APP_USBD_DESCRIPTOR_INTERFACE); // bDescriptorType = Interface
APP_USBD_CLASS_DESCRIPTOR_WRITE(audio_get_control_interface_number(p_inst) + 1); // bInterfaceNumber
APP_USBD_CLASS_DESCRIPTOR_WRITE(0x00); // bAlternateSetting
APP_USBD_CLASS_DESCRIPTOR_WRITE(0x00); // bNumEndpoints
APP_USBD_CLASS_DESCRIPTOR_WRITE(APP_USBD_AUDIO_CLASS); // bInterfaceClass = Audio
APP_USBD_CLASS_DESCRIPTOR_WRITE(p_audio->specific.inst.type_streaming); // bInterfaceSubclass (Audio Control)
APP_USBD_CLASS_DESCRIPTOR_WRITE(APP_USBD_AUDIO_CLASS_PROTOCOL_UNDEFINED); // bInterfaceProtocol
APP_USBD_CLASS_DESCRIPTOR_WRITE(0x00); // iInterface
/* STREAM INTERFACE DESCRIPTOR ALT 1 */
APP_USBD_CLASS_DESCRIPTOR_WRITE(0x09); // bLength
APP_USBD_CLASS_DESCRIPTOR_WRITE(APP_USBD_DESCRIPTOR_INTERFACE); // bDescriptorType = Interface
APP_USBD_CLASS_DESCRIPTOR_WRITE(audio_get_control_interface_number(p_inst) + 1); // bInterfaceNumber
APP_USBD_CLASS_DESCRIPTOR_WRITE(0x01); // bAlternateSetting
APP_USBD_CLASS_DESCRIPTOR_WRITE(app_usbd_class_iface_ep_count_get(p_cur_iface)); // bNumEndpoints
APP_USBD_CLASS_DESCRIPTOR_WRITE(APP_USBD_AUDIO_CLASS); // bInterfaceClass = Audio
APP_USBD_CLASS_DESCRIPTOR_WRITE(p_audio->specific.inst.type_streaming); // bInterfaceSubclass (Audio Control)
APP_USBD_CLASS_DESCRIPTOR_WRITE(APP_USBD_AUDIO_CLASS_PROTOCOL_UNDEFINED); // bInterfaceProtocol
APP_USBD_CLASS_DESCRIPTOR_WRITE(0x00); // iInterface
/* AudioStreaming GENERAL DESCRIPTOR */
APP_USBD_CLASS_DESCRIPTOR_WRITE(0x07); // bLength
APP_USBD_CLASS_DESCRIPTOR_WRITE(APP_USBD_AUDIO_DESCRIPTOR_INTERFACE); // bDescriptorType = Audio Interface
APP_USBD_CLASS_DESCRIPTOR_WRITE(APP_USBD_AUDIO_AS_IFACE_SUBTYPE_GENERAL); // bDescriptorSubtype = General
APP_USBD_CLASS_DESCRIPTOR_WRITE(audio_get_control_interface_number(p_inst) + 1); // bTerminalLink
APP_USBD_CLASS_DESCRIPTOR_WRITE(p_audio->specific.inst.delay); // bDelay
APP_USBD_CLASS_DESCRIPTOR_WRITE(LSB_16(p_audio->specific.inst.format)); // wFormatTag LSB
APP_USBD_CLASS_DESCRIPTOR_WRITE(MSB_16(p_audio->specific.inst.format)); // wFormatTag MSB
/* FORMAT DESCRIPTOR */
static size_t format_desc_size = 0;
format_desc_size = audio_get_format_descriptor_size(p_inst);
for (cur_byte = 0; cur_byte < format_desc_size; cur_byte++)
{
APP_USBD_CLASS_DESCRIPTOR_WRITE(audio_get_format_descriptor_data(p_inst, cur_byte));
}
/* ENDPOINT GENERAL DESCRIPTOR */
APP_USBD_CLASS_DESCRIPTOR_WRITE(0x07); // bLength
APP_USBD_CLASS_DESCRIPTOR_WRITE(APP_USBD_AUDIO_DESCRIPTOR_ENDPOINT); // bDescriptorType = Audio Descriptor
APP_USBD_CLASS_DESCRIPTOR_WRITE(APP_USBD_AUDIO_EP_SUBTYPE_GENERAL); // bDescriptorSubtype = EP General
APP_USBD_CLASS_DESCRIPTOR_WRITE(0x00); // bmAttributes
APP_USBD_CLASS_DESCRIPTOR_WRITE(0x00); // bLockDelayUnits
APP_USBD_CLASS_DESCRIPTOR_WRITE(LSB_16(0x0000)); // wLockDelay LSB
APP_USBD_CLASS_DESCRIPTOR_WRITE(MSB_16(0x0000)); // wLockDelay MSB
/* ENDPOINT ISO DESCRIPTOR */
APP_USBD_CLASS_DESCRIPTOR_WRITE(0x09); // bLength
APP_USBD_CLASS_DESCRIPTOR_WRITE(APP_USBD_DESCRIPTOR_ENDPOINT); // bDescriptorType = Endpoint
static app_usbd_class_ep_conf_t const * p_cur_ep = NULL;
p_cur_ep = app_usbd_class_iface_ep_get(p_cur_iface, 0);
APP_USBD_CLASS_DESCRIPTOR_WRITE(app_usbd_class_ep_address_get(p_cur_ep)); // bEndpointAddress
APP_USBD_CLASS_DESCRIPTOR_WRITE(APP_USBD_DESCRIPTOR_EP_ATTR_TYPE_ISOCHRONOUS); // bmAttributes
APP_USBD_CLASS_DESCRIPTOR_WRITE(LSB_16(p_audio->specific.inst.ep_size)); // wMaxPacketSize LSB
APP_USBD_CLASS_DESCRIPTOR_WRITE(MSB_16(p_audio->specific.inst.ep_size)); // wMaxPacketSize MSB
APP_USBD_CLASS_DESCRIPTOR_WRITE(0x01); // bInterval
APP_USBD_CLASS_DESCRIPTOR_WRITE(0x00); // bRefresh
APP_USBD_CLASS_DESCRIPTOR_WRITE(0x00); // bSynchAddress
APP_USBD_CLASS_DESCRIPTOR_END();
}