Introduction

IPC module is provided as an CDD and implements IPC based on shared memory and Mailbox IP of the SoC

The IPC Driver implements interfaces specified in MCAL_CDD_IPC_Design document.

Provides methods to transport N bytes of data across core's in TDAxx class of processors. Some of the abilities of this driver are

Send N bytes of data to other processor (s)
Received N bytes of data from other processor (s)
Announce Services offered by core hosting AUTOSAR to all processor (s)
- Via transmission N bytes of data

Version: 01.00.00

See also: CDD Ipc Configuration; MCAL_IPC_IRQ

Sub Modules
	CDD_IPC Configuration

CDD IPC Error Codes
typedef void(*	Cdd_Ipc_NewMessage) (void)

#define	CDD_IPC_E_OK (0x00U)
	No errors.

#define	CDD_IPC_E_INIT_FAILED (0x01U)
	Error code indicating initialization failure.

#define	CDD_IPC_E_UNINIT (0x02U)
	Error code indicating the IPC is uninitialized.

#define	CDD_IPC_E_PARAM_POINTER (0x03U)
	Error code indicating driver is un-initialized.

#define	CDD_IPC_E_ALREADY_INITIALIZED (0x04U)
	Error code indicating IPC has already been initialized.

#define	CDD_IPC_E_INVALID_CONFIG (0x05U)
	Error code indicating wrong configuration.

#define	CDD_IPC_E_SEND (0x06U)
	Error code indicating sending of an message failed.

#define	CDD_IPC_E_RECEIVE_RETRY (0x07U)
	Error code indicating reception of invalid message.

#define	CDD_IPC_E_NOT_SUPPORTED (0x08U)
	Error code indicating feature is not supported.

#define	CDD_IPC_E_CALLBACK_NULL (0x09U)
	Error code indicating Callback function passed as NULL pointer.

#define	CDD_IPC_MAX_MSG_LEN (496U)
	Maximum message length that can be transported.

#define	CDD_IPC_MAX_CTRL_MSG_LEN (32U)
	Maximum length of control message.

#define	CDD_IPC_MAX_RETRY_NOTIFY (2U)
	Maximum number of times notify via mailbox is attempted.

void	Cdd_IpcGetVersionInfo (Std_VersionInfoType *VersionInfoPtr)
	Service for getting CDD version.

void	Cdd_IpcInit (void)
	Service for CDD Initialization.

Std_ReturnType	Cdd_IpcDeinit (void)
	Service for deinitializing CDD.

Std_ReturnType	Cdd_IpcSendMsg (VAR(uint32,) chId, const void *pBuf, VAR(uint32,) bufLen)
	Service for sending an message to remote cores.

Std_ReturnType	Cdd_IpcReceiveMsg (VAR(uint32,) chId, void pBuf, uint32 bufLen)
	Service for reception of N bytes of data from remote cores.

Std_ReturnType	Cdd_IpcAnnounce (const UCHAR *pBuf, VAR(uint32,) chId)
	Service for broadcasting capabilities of this core to all other cores.

Std_ReturnType	Cdd_IpcReceiveCtrlMsg (uint32 pRemoteProcId, uint32 pRemoteEndPt, void pBuf, uint32 bufLen)
	Service for reception of N bytes of control message from remote cores.

Std_ReturnType	Cdd_IpcRegisterReadBack (uint32 remoteProcId, Cdd_IpcRegRbValues *pRegArgs)
	Service for reading the configuration registers of the MCAL modules.

boolean	Cdd_IpcIsInitDone (void)
	Service for checking if IPC module is initialized.

uint32	Cdd_IpcGetMaxMsgSize (VAR(uint32,) chId)
	Service for checking if IPC module is initialized.

uint32	Cdd_IpcGetMailboxStatus (VAR(uint32,) remoteProcId)
	Service to get Mailbox state is FULL or not.

CDD IPC Driver Module SW Version Info
Defines for CDD IPC Driver AUTOSAR version used for compatibility checks. Expected to change with each each change in IPC implementation
#define	CDD_IPC_SW_MAJOR_VERSION (11U)
	Driver Implementation Major Version.

#define	CDD_IPC_SW_MINOR_VERSION (0U)
	Driver Implementation Minor Version.

#define	CDD_IPC_SW_PATCH_VERSION (0U)
	Driver Implementation patch Version.

CDD IPC Driver Module AUTOSAR Version Info
Defines for CDD Driver AUTOSAR version used for compatibility checks
#define	CDD_IPC_AR_RELEASE_MAJOR_VERSION (4U)
	AUTOSAR Major version specification implemented by CDD Driver.

#define	CDD_IPC_AR_RELEASE_MINOR_VERSION (3U)
	AUTOSAR Minor version specification implemented by CDD Driver.

#define	CDD_IPC_AR_RELEASE_REVISION_VERSION (1U)
	AUTOSAR Patch version specification implemented by CDD Driver.

CDD IPC Driver Module, AUTOSAR Version Info
Defines for CDD IPC Driver AUTOSAR version used for compatibility checks
#define	CDD_IPC_MODULE_ID ((uint16) 255U)
	CDD Module ID.

#define	CDD_IPC_VENDOR_ID ((uint16) 44U)
	Texas Instruments Vendor ID.

#define	CDD_IPC_INSTANCE_ID ((uint8) 0U)
	IPC Instance ID.

CDD API Service ID
#define	CDD_IPC_SID_GETVERSIONINFO (0x01U)
	API Service ID for get version info.

#define	CDD_IPC_SID_INIT (0x02U)
	API Service ID for initialization.

#define	CDD_IPC_SID_SEND (0x03U)
	API Service ID to send message to remote core.

#define	CDD_IPC_SID_RECEIVE (0x04U)
	API Service ID to receive message from remote core.

#define	CDD_IPC_SID_ANNOUNCE (0x05U)
	API Service ID to announce message all remote core.

#define	CDD_IPC_SID_INTERNAL_ISR_ID (0x06U)
	API Service ID for ISR.

#define	CDD_IPC_SID_REG_READBACK (0x07U)
	API Service ID for register read back.

#define	CDD_IPC_SID_DEINIT (0x08U)
	API Service ID for De initialization.

#define	CDD_IPC_SID_CTRL_RECEIVE (0x09U)
	API Service ID to receive control message from remote core.

#define	CDD_IPC_SID_IS_INIT_DONE (0x0AU)
	API Service ID to determine if module is initialized.

#define	CDD_IPC_SID_GET_MAX_MSG_SIZE (0x0BU)
	API Service ID to determine the maximum message size configured.

#define	CDD_IPC_SID_MAILBOX_STATE (0x0CU)
	API Service ID to determine the state of the mailbox.

Macro Definition Documentation

◆ CDD_IPC_SW_MAJOR_VERSION

#define CDD_IPC_SW_MAJOR_VERSION (11U)

Driver Implementation Major Version.

◆ CDD_IPC_SW_MINOR_VERSION

#define CDD_IPC_SW_MINOR_VERSION (0U)

Driver Implementation Minor Version.

◆ CDD_IPC_SW_PATCH_VERSION

#define CDD_IPC_SW_PATCH_VERSION (0U)

Driver Implementation patch Version.

◆ CDD_IPC_AR_RELEASE_MAJOR_VERSION

#define CDD_IPC_AR_RELEASE_MAJOR_VERSION (4U)

AUTOSAR Major version specification implemented by CDD Driver.

◆ CDD_IPC_AR_RELEASE_MINOR_VERSION

#define CDD_IPC_AR_RELEASE_MINOR_VERSION (3U)

AUTOSAR Minor version specification implemented by CDD Driver.

◆ CDD_IPC_AR_RELEASE_REVISION_VERSION

#define CDD_IPC_AR_RELEASE_REVISION_VERSION (1U)

AUTOSAR Patch version specification implemented by CDD Driver.

◆ CDD_IPC_MODULE_ID

#define CDD_IPC_MODULE_ID ((uint16) 255U)

CDD Module ID.

◆ CDD_IPC_VENDOR_ID

#define CDD_IPC_VENDOR_ID ((uint16) 44U)

Texas Instruments Vendor ID.

◆ CDD_IPC_INSTANCE_ID

#define CDD_IPC_INSTANCE_ID ((uint8) 0U)

IPC Instance ID.

◆ CDD_IPC_SID_GETVERSIONINFO

#define CDD_IPC_SID_GETVERSIONINFO (0x01U)

API Service ID for get version info.

◆ CDD_IPC_SID_INIT

#define CDD_IPC_SID_INIT (0x02U)

API Service ID for initialization.

◆ CDD_IPC_SID_SEND

#define CDD_IPC_SID_SEND (0x03U)

API Service ID to send message to remote core.

◆ CDD_IPC_SID_RECEIVE

#define CDD_IPC_SID_RECEIVE (0x04U)

API Service ID to receive message from remote core.

◆ CDD_IPC_SID_ANNOUNCE

#define CDD_IPC_SID_ANNOUNCE (0x05U)

API Service ID to announce message all remote core.

◆ CDD_IPC_SID_INTERNAL_ISR_ID

#define CDD_IPC_SID_INTERNAL_ISR_ID (0x06U)

API Service ID for ISR.

◆ CDD_IPC_SID_REG_READBACK

#define CDD_IPC_SID_REG_READBACK (0x07U)

API Service ID for register read back.

◆ CDD_IPC_SID_DEINIT

#define CDD_IPC_SID_DEINIT (0x08U)

API Service ID for De initialization.

◆ CDD_IPC_SID_CTRL_RECEIVE

#define CDD_IPC_SID_CTRL_RECEIVE (0x09U)

API Service ID to receive control message from remote core.

◆ CDD_IPC_SID_IS_INIT_DONE

#define CDD_IPC_SID_IS_INIT_DONE (0x0AU)

API Service ID to determine if module is initialized.

◆ CDD_IPC_SID_GET_MAX_MSG_SIZE

#define CDD_IPC_SID_GET_MAX_MSG_SIZE (0x0BU)

API Service ID to determine the maximum message size configured.

◆ CDD_IPC_SID_MAILBOX_STATE

#define CDD_IPC_SID_MAILBOX_STATE (0x0CU)

API Service ID to determine the state of the mailbox.

◆ CDD_IPC_E_OK

#define CDD_IPC_E_OK (0x00U)

No errors.

◆ CDD_IPC_E_INIT_FAILED

#define CDD_IPC_E_INIT_FAILED (0x01U)

Error code indicating initialization failure.

◆ CDD_IPC_E_UNINIT

#define CDD_IPC_E_UNINIT (0x02U)

Error code indicating the IPC is uninitialized.

◆ CDD_IPC_E_PARAM_POINTER

#define CDD_IPC_E_PARAM_POINTER (0x03U)

Error code indicating driver is un-initialized.

◆ CDD_IPC_E_ALREADY_INITIALIZED

#define CDD_IPC_E_ALREADY_INITIALIZED (0x04U)

Error code indicating IPC has already been initialized.

◆ CDD_IPC_E_INVALID_CONFIG

#define CDD_IPC_E_INVALID_CONFIG (0x05U)

Error code indicating wrong configuration.

◆ CDD_IPC_E_SEND

#define CDD_IPC_E_SEND (0x06U)

Error code indicating sending of an message failed.

◆ CDD_IPC_E_RECEIVE_RETRY

#define CDD_IPC_E_RECEIVE_RETRY (0x07U)

Error code indicating reception of invalid message.

◆ CDD_IPC_E_NOT_SUPPORTED

#define CDD_IPC_E_NOT_SUPPORTED (0x08U)

Error code indicating feature is not supported.

◆ CDD_IPC_E_CALLBACK_NULL

#define CDD_IPC_E_CALLBACK_NULL (0x09U)

Error code indicating Callback function passed as NULL pointer.

◆ CDD_IPC_MAX_MSG_LEN

#define CDD_IPC_MAX_MSG_LEN (496U)

Maximum message length that can be transported.

◆ CDD_IPC_MAX_CTRL_MSG_LEN

#define CDD_IPC_MAX_CTRL_MSG_LEN (32U)

Maximum length of control message.

◆ CDD_IPC_MAX_RETRY_NOTIFY

#define CDD_IPC_MAX_RETRY_NOTIFY (2U)

Maximum number of times notify via mailbox is attempted.

In cases where the remote core is not processing mailbox notification,
the driver would attempt to notify multiple times.

Typedef Documentation

◆ Cdd_Ipc_NewMessage

typedef void(* Cdd_Ipc_NewMessage) (void)

Function Documentation

◆ Cdd_IpcGetVersionInfo()

void Cdd_IpcGetVersionInfo ( Std_VersionInfoType * VersionInfoPtr )

Service for getting CDD version.

*  Service name        : Cdd_IpcGetVersionInfo
*  Syntax              : void Cdd_IpcGetVersionInfo(Std_VersionInfoType
*                                                              VersionInfoPtr)
*  Mode                : User Mode (Non-Privileged Mode)
*  Service ID[hex]     : CDD_IPC_SID_GETVERSIONINFO
*  Sync/Async          : Synchronous
*  Reentrancy          : Non Reentrant
*  Parameters (in)     : VersionInfoPtr - Pointer to version info element
*  Parameters (inout)  : None
*  Parameters (out)    : None
*  Return value        : None
*  Description         : Service for getting CDD version.
*

◆ Cdd_IpcInit()

void Cdd_IpcInit ( void )

Service for CDD Initialization.

*  Service name        : Cdd_IpcInit
*  Syntax              : Std_ReturnType Cdd_IpcInit(void)
*  Mode                : Supervisor Mode (Privileged Mode)
*  Service ID[hex]     : CDD_IPC_SID_INIT
*  Sync/Async          : Synchronous
*  Reentrancy          : Non Reentrant
*  Parameters (in)     : None
*  Parameters (inout)  : None
*  Parameters (out)    : None
*  Return value        : None
*  Description         : Service for  CDD Initialization.
*

◆ Cdd_IpcDeinit()

Std_ReturnType Cdd_IpcDeinit ( void )

Service for deinitializing CDD.

*  Service name        : Cdd_IpcDeinit
*  Syntax              : Std_ReturnType Cdd_IpcDeinit(void* ConfigPtr)
*  Mode                : Supervisor Mode (Privileged Mode)
*  Service ID[hex]     : CDD_IPC_SID_DEINIT
*  Sync/Async          : Synchronous
*  Reentrancy          : Non-Reentrant
*  Parameters (in)     : ConfigPtr - Not used for now, reserved for future
*  Parameters (inout)  : None
*  Parameters (out)    : None
*  Return value        : Std_ReturnType
*  Description         : Service for deinitializing the CDD and change the
*                          driver state to uninitialized
*

◆ Cdd_IpcSendMsg()

Std_ReturnType Cdd_IpcSendMsg	(	VAR(uint32,)	chId,
		const void *	pBuf,
		VAR(uint32,)	bufLen )

Service for sending an message to remote cores.

*  Service name        : Cdd_IpcSendMsg
*  Syntax              : Std_ReturnType Cdd_IpcSendMsg(
*                                              uint32  chId,
*                                              void    *pBuf,
*                                              uint32  bufLen)
*  Mode                : Supervisor Mode (Privileged Mode)
*  Service ID[hex]     : CDD_IPC_SID_SEND
*  Sync/Async          : Synchronous
*  Reentrancy          : NonReentrant
*  Parameters (in)     : chId - Communication channel identifier
*                      : pBuf - non NULL_PTR, that describes the message to be
*                                  sent
*                      : bufLen - Length in bytes and cannot exceed
*                                  CDD_IPC_MAX_MSG_LEN
*  Parameters (inout)  : None
*  Parameters (out)    : None
*  Return value        : Std_ReturnType
*  Description         : This API is used to transport N bytes of data across
*                          cores.
*

◆ Cdd_IpcReceiveMsg()

Std_ReturnType Cdd_IpcReceiveMsg	(	VAR(uint32,)	chId,
		void *	pBuf,
		uint32 *	bufLen )

Service for reception of N bytes of data from remote cores.

*  Service name        : Cdd_IpcReceiveMsg
*  Syntax              : Std_ReturnType Cdd_IpcReceiveMsg(
*                                              uint32  chId,
*                                              void    *pBuf,
*                                              uint32  bufLen)
*  Mode                : Supervisor Mode (Privileged Mode)
*  Service ID[hex]     : CDD_IPC_SID_RECEIVE
*  Sync/Async          : Synchronous
*  Reentrancy          : NonReentrant
*  Parameters (in)     : chId - Communication channel identifier
*                      : pBuf - non NULL_PTR, that describes the memory space
*                                  that can hold received message. The length
*                                  shall be CDD_IPC_MAX_MSG_LEN
*                      : bufLen - Received message length in bytes and will not
*                                  exceed CDD_IPC_MAX_MSG_LEN.
*  Parameters (inout)  : None
*  Parameters (out)    : None
*  Return value        : Std_ReturnType
*  Description         : This API is used to receive message from remote core
*                          If there are no messages E_NOT_OK shall be
*                          returned.
*
*

◆ Cdd_IpcAnnounce()

Std_ReturnType Cdd_IpcAnnounce	(	const UCHAR *	pBuf,
		VAR(uint32,)	chId )

Service for broadcasting capabilities of this core to all other cores.

*  Service name        : Cdd_IpcAnnounce
*  Syntax              : Std_ReturnType Cdd_IpcAnnounce(
*                                              void    *pBuf,
*                                              uint32  bufLen)
*  Mode                : Supervisor Mode (Privileged Mode)
*  Service ID[hex]     : CDD_IPC_SID_ANNOUNCE
*  Sync/Async          : Synchronous
*  Reentrancy          : NonReentrant
*  Parameters (in)     : pBuf - non NULL_PTR, that describes the message to be
*                                  sent.
*                      : bufLen - Length in bytes and cannot exceed
*                                  CDD_IPC_MAX_MSG_LEN
*  Parameters (inout)  : None
*  Parameters (out)    : None
*  Return value        : Std_ReturnType
*  Description         : This API is used to announce the capability of this
*                          core to all other cores.
*

◆ Cdd_IpcReceiveCtrlMsg()

Std_ReturnType Cdd_IpcReceiveCtrlMsg	(	uint32 *	pRemoteProcId,
		uint32 *	pRemoteEndPt,
		void *	pBuf,
		uint32 *	bufLen )

Service for reception of N bytes of control message from remote cores.

*  Service name        : Cdd_IpcReceiveCtrlMsg
*  Syntax              : Std_ReturnType Cdd_IpcReceiveCtrlMsg(
*                                              uint32  pRemoteProcId,
*                                              uint32  pRemoteEndPt,
*                                              void    *pBuf,
*                                              uint32  *bufLen)
*  Mode                : Supervisor Mode (Privileged Mode)
*  Service ID[hex]     : CDD_IPC_SID_CTRL_RECEIVE
*  Sync/Async          : Synchronous
*  Reentrancy          : NonReentrant
*  Parameters (inout)  : pRemoteProcId - Holds the remote processor identifier
*                                          that iniciated this control message
*                      : pRemoteEndPt - Holds remote end point number that
*                                      iniciated this control message
*                      : pBuf - non NULL_PTR, that describes the memory space
*                                  that can hold received message. The length
*                                  shall be CDD_IPC_MAX_MSG_LEN
*                      : bufLen - Received message length in bytes and will not
*                                  exceed CDD_IPC_MAX_MSG_LEN.
*  Parameters (in)     : None
*  Parameters (out)    : None
*  Return value        : Std_ReturnType
*  Description         : This API is used to receive control message from
*                          remote core. If there are no messages E_NOT_OK
*                           shall be returned.
*
*

◆ Cdd_IpcRegisterReadBack()

Std_ReturnType Cdd_IpcRegisterReadBack	(	uint32	remoteProcId,
		Cdd_IpcRegRbValues *	pRegArgs )

Service for reading the configuration registers of the MCAL modules.

*  Service name        : Cdd_RegisterReadBack
*  Syntax              : Std_ReturnType Cdd_RegisterReadBack(uint8* mod_name)
*  Mode                : Supervisor Mode (Privileged Mode)
*  Service ID[hex]     : None
*  Sync/Async          : Synchronous
*  Reentrancy          : Reentrant
*  Parameters (in)     : None
*  Parameters (inout)  : pRegArgs - Pointer to structure that would hold values
*                          of registers read back by this API
*  Parameters (out)    : None
*  Return value        : Std_ReturnType
*  Description         : Service for reading the critical configuration
*                          registers of the Mailbox/IPC
*

◆ Cdd_IpcIsInitDone()

boolean Cdd_IpcIsInitDone ( void )

Service for checking if IPC module is initialized.

*  Service name        : Cdd_IpcIsInitDone
*  Syntax              : boolean Cdd_IpcIsInitDone(void)
*  Mode                : User Mode (Non-Privileged Mode)
*  Service ID[hex]     : CDD_IPC_SID_IS_INIT_DONE
*  Sync/Async          : Synchronous
*  Reentrancy          : Reentrant
*  Parameters (in)     : None
*  Parameters (inout)  : None
*  Parameters (out)    : None
*  Return value        : boolean
*  Description         : Returns TRUE if Cdd_ipcInit is completed else FALSE
*

◆ Cdd_IpcGetMaxMsgSize()

uint32 Cdd_IpcGetMaxMsgSize ( VAR(uint32,) chId )