/** @file EFI Bluetooth Host Controller Protocol as defined in UEFI 2.5. This protocol abstracts the Bluetooth host controller layer message transmit and receive. Copyright (c) 2015 - 2018, Intel Corporation. All rights reserved.<BR> SPDX-License-Identifier: BSD-2-Clause-Patent @par Revision Reference: This Protocol is introduced in UEFI Specification 2.5 **/ #ifndef __EFI_BLUETOOTH_HC_PROTOCOL_H__ #define __EFI_BLUETOOTH_HC_PROTOCOL_H__ #define EFI_BLUETOOTH_HC_PROTOCOL_GUID \ { \ 0xb3930571, 0xbeba, 0x4fc5, { 0x92, 0x3, 0x94, 0x27, 0x24, 0x2e, 0x6a, 0x43 } \ } typedef struct _EFI_BLUETOOTH_HC_PROTOCOL EFI_BLUETOOTH_HC_PROTOCOL; /** Send HCI command packet. The SendCommand() function sends HCI command packet. Buffer holds the whole HCI command packet, including OpCode, OCF, OGF, parameter length, and parameters. When this function is returned, it just means the HCI command packet is sent, it does not mean the command is success or complete. Caller might need to wait a command status event to know the command status, or wait a command complete event to know if the command is completed. @param[in] This Pointer to the EFI_BLUETOOTH_HC_PROTOCOL instance. @param[in,out] BufferSize On input, indicates the size, in bytes, of the data buffer specified by Buffer. On output, indicates the amount of data actually transferred. @param[in] Buffer A pointer to the buffer of data that will be transmitted to Bluetooth host controller. @param[in] Timeout Indicating the transfer should be completed within this time frame. The units are in milliseconds. If Timeout is 0, then the caller must wait for the function to be completed until EFI_SUCCESS or EFI_DEVICE_ERROR is returned. @retval EFI_SUCCESS The HCI command packet is sent successfully. @retval EFI_INVALID_PARAMETER One or more of the following conditions is TRUE: BufferSize is NULL. *BufferSize is 0. Buffer is NULL. @retval EFI_TIMEOUT Sending HCI command packet fail due to timeout. @retval EFI_DEVICE_ERROR Sending HCI command packet fail due to host controller or device error. **/ typedef EFI_STATUS (EFIAPI *EFI_BLUETOOTH_HC_SEND_COMMAND)( IN EFI_BLUETOOTH_HC_PROTOCOL *This, IN OUT UINTN *BufferSize, IN VOID *Buffer, IN UINTN Timeout ); /** Receive HCI event packet. The ReceiveEvent() function receives HCI event packet. Buffer holds the whole HCI event packet, including EventCode, parameter length, and parameters. @param[in] This Pointer to the EFI_BLUETOOTH_HC_PROTOCOL instance. @param[in,out] BufferSize On input, indicates the size, in bytes, of the data buffer specified by Buffer. On output, indicates the amount of data actually transferred. @param[out] Buffer A pointer to the buffer of data that will be received from Bluetooth host controller. @param[in] Timeout Indicating the transfer should be completed within this time frame. The units are in milliseconds. If Timeout is 0, then the caller must wait for the function to be completed until EFI_SUCCESS or EFI_DEVICE_ERROR is returned. @retval EFI_SUCCESS The HCI event packet is received successfully. @retval EFI_INVALID_PARAMETER One or more of the following conditions is TRUE: BufferSize is NULL. *BufferSize is 0. Buffer is NULL. @retval EFI_TIMEOUT Receiving HCI event packet fail due to timeout. @retval EFI_DEVICE_ERROR Receiving HCI event packet fail due to host controller or device error. **/ typedef EFI_STATUS (EFIAPI *EFI_BLUETOOTH_HC_RECEIVE_EVENT)( IN EFI_BLUETOOTH_HC_PROTOCOL *This, IN OUT UINTN *BufferSize, OUT VOID *Buffer, IN UINTN Timeout ); /** The async callback of AsyncReceiveEvent(). @param[in] Data Data received via asynchronous transfer. @param[in] DataLength The length of Data in bytes, received via asynchronous transfer. @param[in] Context Context passed from asynchronous transfer request. @retval EFI_SUCCESS The callback does execute successfully. @retval Others The callback doesn't execute successfully. **/ typedef EFI_STATUS (EFIAPI *EFI_BLUETOOTH_HC_ASYNC_FUNC_CALLBACK) ( IN VOID *Data, IN UINTN DataLength, IN VOID *Context ); /** Receive HCI event packet in non-blocking way. The AsyncReceiveEvent() function receives HCI event packet in non-blocking way. Data in Callback function holds the whole HCI event packet, including EventCode, parameter length, and parameters. @param[in] This Pointer to the EFI_BLUETOOTH_HC_PROTOCOL instance. @param[in] IsNewTransfer If TRUE, a new transfer will be submitted. If FALSE, the request is deleted. @param[in] PollingInterval Indicates the periodic rate, in milliseconds, that the transfer is to be executed. @param[in] DataLength Specifies the length, in bytes, of the data to be received. @param[in] Callback The callback function. This function is called if the asynchronous transfer is completed. @param[in] Context Data passed into Callback function. This is optional parameter and may be NULL. @retval EFI_SUCCESS The HCI asynchronous receive request is submitted successfully. @retval EFI_INVALID_PARAMETER One or more of the following conditions is TRUE: DataLength is 0. If IsNewTransfer is TRUE, and an asynchronous receive request already exists. **/ typedef EFI_STATUS (EFIAPI *EFI_BLUETOOTH_HC_ASYNC_RECEIVE_EVENT) ( IN EFI_BLUETOOTH_HC_PROTOCOL *This, IN BOOLEAN IsNewTransfer, IN UINTN PollingInterval, IN UINTN DataLength, IN EFI_BLUETOOTH_HC_ASYNC_FUNC_CALLBACK Callback, IN VOID *Context ); /** Send HCI ACL data packet. The SendACLData() function sends HCI ACL data packet. Buffer holds the whole HCI ACL data packet, including Handle, PB flag, BC flag, data length, and data. The SendACLData() function and ReceiveACLData() function just send and receive data payload from application layer. In order to protect the payload data, the Bluetooth bus is required to call HCI_Set_Connection_Encryption command to enable hardware based encryption after authentication completed, according to pairing mode and host capability. @param[in] This Pointer to the EFI_BLUETOOTH_HC_PROTOCOL instance. @param[in, out] BufferSize On input, indicates the size, in bytes, of the data buffer specified by Buffer. On output, indicates the amount of data actually transferred. @param[in] Buffer A pointer to the buffer of data that will be transmitted to Bluetooth host controller. @param[in] Timeout Indicating the transfer should be completed within this time frame. The units are in milliseconds. If Timeout is 0, then the caller must wait for the function to be completed until EFI_SUCCESS or EFI_DEVICE_ERROR is returned. @retval EFI_SUCCESS The HCI ACL data packet is sent successfully. @retval EFI_INVALID_PARAMETER One or more of the following conditions is TRUE: BufferSize is NULL. *BufferSize is 0. Buffer is NULL. @retval EFI_TIMEOUT Sending HCI ACL data packet fail due to timeout. @retval EFI_DEVICE_ERROR Sending HCI ACL data packet fail due to host controller or device error. **/ typedef EFI_STATUS (EFIAPI *EFI_BLUETOOTH_HC_SEND_ACL_DATA)( IN EFI_BLUETOOTH_HC_PROTOCOL *This, IN OUT UINTN *BufferSize, IN VOID *Buffer, IN UINTN Timeout ); /** Receive HCI ACL data packet. The ReceiveACLData() function receives HCI ACL data packet. Buffer holds the whole HCI ACL data packet, including Handle, PB flag, BC flag, data length, and data. @param[in] This Pointer to the EFI_BLUETOOTH_HC_PROTOCOL instance. @param[in, out] BufferSize On input, indicates the size, in bytes, of the data buffer specified by Buffer. On output, indicates the amount of data actually transferred. @param[out] Buffer A pointer to the buffer of data that will be received from Bluetooth host controller. @param[in] Timeout Indicating the transfer should be completed within this time frame. The units are in milliseconds. If Timeout is 0, then the caller must wait for the function to be completed until EFI_SUCCESS or EFI_DEVICE_ERROR is returned. @retval EFI_SUCCESS The HCI ACL data packet is received successfully. @retval EFI_INVALID_PARAMETER One or more of the following conditions is TRUE: BufferSize is NULL. *BufferSize is 0. Buffer is NULL. @retval EFI_TIMEOUT Receiving HCI ACL data packet fail due to timeout. @retval EFI_DEVICE_ERROR Receiving HCI ACL data packet fail due to host controller or device error. **/ typedef EFI_STATUS (EFIAPI *EFI_BLUETOOTH_HC_RECEIVE_ACL_DATA)( IN EFI_BLUETOOTH_HC_PROTOCOL *This, IN OUT UINTN *BufferSize, OUT VOID *Buffer, IN UINTN Timeout ); /** Receive HCI ACL data packet in non-blocking way. The AsyncReceiveACLData() function receives HCI ACL data packet in non-blocking way. Data in Callback holds the whole HCI ACL data packet, including Handle, PB flag, BC flag, data length, and data. @param[in] This Pointer to the EFI_BLUETOOTH_HC_PROTOCOL instance. @param[in] IsNewTransfer If TRUE, a new transfer will be submitted. If FALSE, the request is deleted. @param[in] PollingInterval Indicates the periodic rate, in milliseconds, that the transfer is to be executed. @param[in] DataLength Specifies the length, in bytes, of the data to be received. @param[in] Callback The callback function. This function is called if the asynchronous transfer is completed. @param[in] Context Data passed into Callback function. This is optional parameter and may be NULL. @retval EFI_SUCCESS The HCI asynchronous receive request is submitted successfully. @retval EFI_INVALID_PARAMETER One or more of the following conditions is TRUE: DataLength is 0. If IsNewTransfer is TRUE, and an asynchronous receive request already exists. **/ typedef EFI_STATUS (EFIAPI *EFI_BLUETOOTH_HC_ASYNC_RECEIVE_ACL_DATA) ( IN EFI_BLUETOOTH_HC_PROTOCOL *This, IN BOOLEAN IsNewTransfer, IN UINTN PollingInterval, IN UINTN DataLength, IN EFI_BLUETOOTH_HC_ASYNC_FUNC_CALLBACK Callback, IN VOID *Context ); /** Send HCI SCO data packet. The SendSCOData() function sends HCI SCO data packet. Buffer holds the whole HCI SCO data packet, including ConnectionHandle, PacketStatus flag, data length, and data. @param[in] This Pointer to the EFI_BLUETOOTH_HC_PROTOCOL instance. @param[in,out] BufferSize On input, indicates the size, in bytes, of the data buffer specified by Buffer. On output, indicates the amount of data actually transferred. @param[in] Buffer A pointer to the buffer of data that will be transmitted to Bluetooth host controller. @param[in] Timeout Indicating the transfer should be completed within this time frame. The units are in milliseconds. If Timeout is 0, then the caller must wait for the function to be completed until EFI_SUCCESS or EFI_DEVICE_ERROR is returned. @retval EFI_SUCCESS The HCI SCO data packet is sent successfully. @retval EFI_UNSUPPORTED The implementation does not support HCI SCO transfer. @retval EFI_INVALID_PARAMETER One or more of the following conditions is TRUE: BufferSize is NULL. *BufferSize is 0. Buffer is NULL. @retval EFI_TIMEOUT Sending HCI SCO data packet fail due to timeout. @retval EFI_DEVICE_ERROR Sending HCI SCO data packet fail due to host controller or device error. **/ typedef EFI_STATUS (EFIAPI *EFI_BLUETOOTH_HC_SEND_SCO_DATA)( IN EFI_BLUETOOTH_HC_PROTOCOL *This, IN OUT UINTN *BufferSize, IN VOID *Buffer, IN UINTN Timeout ); /** Receive HCI SCO data packet. The ReceiveSCOData() function receives HCI SCO data packet. Buffer holds the whole HCI SCO data packet, including ConnectionHandle, PacketStatus flag, data length, and data. @param[in] This Pointer to the EFI_BLUETOOTH_HC_PROTOCOL instance. @param[in,out] BufferSize On input, indicates the size, in bytes, of the data buffer specified by Buffer. On output, indicates the amount of data actually transferred. @param[out] Buffer A pointer to the buffer of data that will be received from Bluetooth host controller. @param[in] Timeout Indicating the transfer should be completed within this time frame. The units are in milliseconds. If Timeout is 0, then the caller must wait for the function to be completed until EFI_SUCCESS or EFI_DEVICE_ERROR is returned. @retval EFI_SUCCESS The HCI SCO data packet is received successfully. @retval EFI_INVALID_PARAMETER One or more of the following conditions is TRUE: BufferSize is NULL. *BufferSize is 0. Buffer is NULL. @retval EFI_TIMEOUT Receiving HCI SCO data packet fail due to timeout. @retval EFI_DEVICE_ERROR Receiving HCI SCO data packet fail due to host controller or device error. **/ typedef EFI_STATUS (EFIAPI *EFI_BLUETOOTH_HC_RECEIVE_SCO_DATA)( IN EFI_BLUETOOTH_HC_PROTOCOL *This, IN OUT UINTN *BufferSize, OUT VOID *Buffer, IN UINTN Timeout ); /** Receive HCI SCO data packet in non-blocking way. The AsyncReceiveSCOData() function receives HCI SCO data packet in non-blocking way. Data in Callback holds the whole HCI SCO data packet, including ConnectionHandle, PacketStatus flag, data length, and data. @param[in] This Pointer to the EFI_BLUETOOTH_HC_PROTOCOL instance. @param[in] IsNewTransfer If TRUE, a new transfer will be submitted. If FALSE, the request is deleted. @param[in] PollingInterval Indicates the periodic rate, in milliseconds, that the transfer is to be executed. @param[in] DataLength Specifies the length, in bytes, of the data to be received. @param[in] Callback The callback function. This function is called if the asynchronous transfer is completed. @param[in] Context Data passed into Callback function. This is optional parameter and may be NULL. @retval EFI_SUCCESS The HCI asynchronous receive request is submitted successfully. @retval EFI_INVALID_PARAMETER One or more of the following conditions is TRUE: DataLength is 0. If IsNewTransfer is TRUE, and an asynchronous receive request already exists. **/ typedef EFI_STATUS (EFIAPI *EFI_BLUETOOTH_HC_ASYNC_RECEIVE_SCO_DATA) ( IN EFI_BLUETOOTH_HC_PROTOCOL *This, IN BOOLEAN IsNewTransfer, IN UINTN PollingInterval, IN UINTN DataLength, IN EFI_BLUETOOTH_HC_ASYNC_FUNC_CALLBACK Callback, IN VOID *Context ); // // The EFI_BLUETOOTH_HC_PROTOCOL is used to transmit or receive HCI layer data packets. // struct _EFI_BLUETOOTH_HC_PROTOCOL { // // Send HCI command packet. // EFI_BLUETOOTH_HC_SEND_COMMAND SendCommand; // // Receive HCI event packets. // EFI_BLUETOOTH_HC_RECEIVE_EVENT ReceiveEvent; // // Non-blocking receive HCI event packets. // EFI_BLUETOOTH_HC_ASYNC_RECEIVE_EVENT AsyncReceiveEvent; // // Send HCI ACL (asynchronous connection-oriented) data packets. // EFI_BLUETOOTH_HC_SEND_ACL_DATA SendACLData; // // Receive HCI ACL data packets. // EFI_BLUETOOTH_HC_RECEIVE_ACL_DATA ReceiveACLData; // // Non-blocking receive HCI ACL data packets. // EFI_BLUETOOTH_HC_ASYNC_RECEIVE_ACL_DATA AsyncReceiveACLData; // // Send HCI synchronous (SCO and eSCO) data packets. // EFI_BLUETOOTH_HC_SEND_SCO_DATA SendSCOData; // // Receive HCI synchronous data packets. // EFI_BLUETOOTH_HC_RECEIVE_SCO_DATA ReceiveSCOData; // // Non-blocking receive HCI synchronous data packets. // EFI_BLUETOOTH_HC_ASYNC_RECEIVE_SCO_DATA AsyncReceiveSCOData; }; extern EFI_GUID gEfiBluetoothHcProtocolGuid; #endif