+ uint16_t TimeoutMSRem = COMMAND_DATA_TIMEOUT_MS;\r
+\r
+ if ((USB_HostState != HOST_STATE_Configured) || !(SIInterfaceInfo->State.IsActive))\r
+ return PIPE_RWSTREAM_DeviceDisconnected;\r
+\r
+ Pipe_SelectPipe(SIInterfaceInfo->Config.DataINPipeNumber);\r
+ Pipe_Unfreeze();\r
+ \r
+ while (!(Pipe_IsReadWriteAllowed()))\r
+ {\r
+ if (USB_INT_HasOccurred(USB_INT_HSOFI))\r
+ {\r
+ USB_INT_Clear(USB_INT_HSOFI);\r
+ TimeoutMSRem--;\r
+\r
+ if (!(TimeoutMSRem))\r
+ {\r
+ return PIPE_RWSTREAM_Timeout;\r
+ }\r
+ }\r
+ \r
+ Pipe_Freeze();\r
+ Pipe_SelectPipe(SIInterfaceInfo->Config.DataOUTPipeNumber);\r
+ Pipe_Unfreeze();\r
+\r
+ if (Pipe_IsStalled())\r
+ {\r
+ USB_Host_ClearPipeStall(SIInterfaceInfo->Config.DataOUTPipeNumber);\r
+ return PIPE_RWSTREAM_PipeStalled;\r
+ }\r
+\r
+ Pipe_Freeze();\r
+ Pipe_SelectPipe(SIInterfaceInfo->Config.DataINPipeNumber);\r
+ Pipe_Unfreeze();\r
+\r
+ if (Pipe_IsStalled())\r
+ {\r
+ USB_Host_ClearPipeStall(SIInterfaceInfo->Config.DataINPipeNumber);\r
+ return PIPE_RWSTREAM_PipeStalled;\r
+ }\r
+ \r
+ if (USB_HostState == HOST_STATE_Unattached)\r
+ return PIPE_RWSTREAM_DeviceDisconnected;\r
+ }\r
+ \r
+ Pipe_Read_Stream_LE(PIMAHeader, PIMA_COMMAND_SIZE(0), NO_STREAM_CALLBACK);\r
+ \r
+ if (PIMAHeader->Type == CType_ResponseBlock)\r
+ {\r
+ uint8_t ParamBytes = (PIMAHeader->DataLength - PIMA_COMMAND_SIZE(0));\r
+\r
+ if (ParamBytes)\r
+ Pipe_Read_Stream_LE(&PIMAHeader->Params, ParamBytes, NO_STREAM_CALLBACK);\r
+ \r
+ Pipe_ClearIN();\r
+ }\r
+ \r
+ Pipe_Freeze();\r
+ \r
+ return PIPE_RWSTREAM_NoError;\r
+}\r
+\r
+uint8_t SImage_Host_SendData(USB_ClassInfo_SI_Host_t* const SIInterfaceInfo, void* Buffer, const uint16_t Bytes)\r
+{\r
+ uint8_t ErrorCode;\r
+\r
+ if ((USB_HostState != HOST_STATE_Configured) || !(SIInterfaceInfo->State.IsActive))\r
+ return PIPE_RWSTREAM_DeviceDisconnected;\r
+\r
+ Pipe_SelectPipe(SIInterfaceInfo->Config.DataOUTPipeNumber);\r
+ Pipe_Unfreeze();\r
+ \r
+ ErrorCode = Pipe_Write_Stream_LE(Buffer, Bytes, NO_STREAM_CALLBACK);\r
+\r
+ Pipe_ClearOUT();\r
+ Pipe_Freeze();\r
+ \r
+ return ErrorCode;\r
+}\r
+\r
+uint8_t SImage_Host_ReadData(USB_ClassInfo_SI_Host_t* const SIInterfaceInfo, void* Buffer, const uint16_t Bytes)\r
+{\r
+ uint8_t ErrorCode;\r
+\r
+ if ((USB_HostState != HOST_STATE_Configured) || !(SIInterfaceInfo->State.IsActive))\r
+ return PIPE_RWSTREAM_DeviceDisconnected;\r
+\r
+ Pipe_SelectPipe(SIInterfaceInfo->Config.DataINPipeNumber);\r
+ Pipe_Unfreeze();\r
+\r
+ ErrorCode = Pipe_Read_Stream_LE(Buffer, Bytes, NO_STREAM_CALLBACK);\r
+\r
+ Pipe_Freeze();\r
+ \r
+ return ErrorCode;\r
+}\r
+\r
+bool SImage_Host_IsEventReceived(USB_ClassInfo_SI_Host_t* SIInterfaceInfo)\r
+{\r
+ bool IsEventReceived = false;\r
+\r
+ if ((USB_HostState != HOST_STATE_Configured) || !(SIInterfaceInfo->State.IsActive))\r
+ return false;\r
+\r
+ Pipe_SelectPipe(SIInterfaceInfo->Config.EventsPipeNumber);\r
+ Pipe_Unfreeze();\r
+ \r
+ if (Pipe_BytesInPipe())\r
+ IsEventReceived = true;\r
+ \r
+ Pipe_Freeze();\r
+ \r
+ return IsEventReceived;\r
+}\r
+\r
+uint8_t SImage_Host_ReceiveEventHeader(USB_ClassInfo_SI_Host_t* const SIInterfaceInfo, SI_PIMA_Container_t* const PIMAHeader)\r
+{\r
+ uint8_t ErrorCode;\r
+\r
+ if ((USB_HostState != HOST_STATE_Configured) || !(SIInterfaceInfo->State.IsActive))\r
+ return PIPE_RWSTREAM_DeviceDisconnected;\r
+\r
+ Pipe_SelectPipe(SIInterfaceInfo->Config.EventsPipeNumber);\r
+ Pipe_Unfreeze();\r
+ \r
+ ErrorCode = Pipe_Read_Stream_LE(PIMAHeader, sizeof(SI_PIMA_Container_t), NO_STREAM_CALLBACK);\r
+ \r
+ Pipe_ClearIN();\r
+ Pipe_Freeze();\r
+ \r
+ return ErrorCode;\r
+}\r
+\r
+uint8_t SImage_Host_OpenSession(USB_ClassInfo_SI_Host_t* const SIInterfaceInfo)\r
+{\r
+ if ((USB_HostState != HOST_STATE_Configured) || !(SIInterfaceInfo->State.IsActive))\r
+ return HOST_SENDCONTROL_DeviceDisconnected;\r
+\r
+ uint8_t ErrorCode;\r
+\r
+ SI_PIMA_Container_t PIMABlock = (SI_PIMA_Container_t)\r
+ {\r
+ .DataLength = PIMA_COMMAND_SIZE(0),\r
+ .Type = CType_CommandBlock,\r
+ .Code = 0x1002,\r
+ .Params = {},\r
+ };\r
+ \r
+ if ((ErrorCode = SImage_Host_SendBlockHeader(SIInterfaceInfo, &PIMABlock)) != PIPE_RWSTREAM_NoError)\r
+ return ErrorCode;\r
+ \r
+ if ((ErrorCode = SImage_Host_ReceiveBlockHeader(SIInterfaceInfo, &PIMABlock)) != PIPE_RWSTREAM_NoError)\r
+ return ErrorCode;\r
+ \r
+ if ((PIMABlock.Type != CType_ResponseBlock) || (PIMABlock.Code != 0x2001))\r
+ return SI_ERROR_LOGICAL_CMD_FAILED;\r
+ \r
+ SIInterfaceInfo->State.TransactionID = 0;\r
+ SIInterfaceInfo->State.IsSessionOpen = true;\r
+\r
+ return PIPE_RWSTREAM_NoError;\r
+}\r
+\r
+uint8_t SImage_Host_CloseSession(USB_ClassInfo_SI_Host_t* const SIInterfaceInfo)\r
+{\r
+ if ((USB_HostState != HOST_STATE_Configured) || !(SIInterfaceInfo->State.IsActive))\r
+ return HOST_SENDCONTROL_DeviceDisconnected;\r
+\r
+ uint8_t ErrorCode;\r
+\r
+ SI_PIMA_Container_t PIMABlock = (SI_PIMA_Container_t)\r
+ {\r
+ .DataLength = PIMA_COMMAND_SIZE(0),\r
+ .Type = CType_CommandBlock,\r
+ .Code = 0x1003,\r
+ .Params = {},\r
+ };\r
+ \r
+ if ((ErrorCode = SImage_Host_SendBlockHeader(SIInterfaceInfo, &PIMABlock)) != PIPE_RWSTREAM_NoError)\r
+ return ErrorCode;\r
+ \r
+ if ((ErrorCode = SImage_Host_ReceiveBlockHeader(SIInterfaceInfo, &PIMABlock)) != PIPE_RWSTREAM_NoError)\r
+ return ErrorCode;\r
+\r
+ SIInterfaceInfo->State.IsSessionOpen = false;\r
+\r
+ if ((PIMABlock.Type != CType_ResponseBlock) || (PIMABlock.Code != 0x2001))\r
+ return SI_ERROR_LOGICAL_CMD_FAILED;\r
+\r
+ return PIPE_RWSTREAM_NoError;\r
+}\r
+\r
+uint8_t SImage_Host_SendCommand(USB_ClassInfo_SI_Host_t* const SIInterfaceInfo, const uint16_t Operation,\r
+ const uint8_t TotalParams, uint32_t* Params)\r
+{\r
+ if ((USB_HostState != HOST_STATE_Configured) || !(SIInterfaceInfo->State.IsActive))\r
+ return HOST_SENDCONTROL_DeviceDisconnected;\r
+\r
+ uint8_t ErrorCode;\r
+\r
+ SI_PIMA_Container_t PIMABlock = (SI_PIMA_Container_t)\r
+ {\r
+ .DataLength = PIMA_COMMAND_SIZE(TotalParams),\r
+ .Type = CType_CommandBlock,\r
+ .Code = Operation,\r
+ };\r
+ \r
+ memcpy(&PIMABlock.Params, Params, sizeof(uint32_t) * TotalParams);\r
+ \r
+ if ((ErrorCode = SImage_Host_SendBlockHeader(SIInterfaceInfo, &PIMABlock)) != PIPE_RWSTREAM_NoError)\r
+ return ErrorCode;\r
+\r
+ return PIPE_RWSTREAM_NoError;\r
+}\r
+\r
+uint8_t SImage_Host_ReceiveResponse(USB_ClassInfo_SI_Host_t* const SIInterfaceInfo)\r
+{\r
+ uint8_t ErrorCode;\r
+ SI_PIMA_Container_t PIMABlock;\r
+\r
+ if ((USB_HostState != HOST_STATE_Configured) || !(SIInterfaceInfo->State.IsActive))\r
+ return HOST_SENDCONTROL_DeviceDisconnected;\r
+\r
+ if ((ErrorCode = SImage_Host_ReceiveBlockHeader(SIInterfaceInfo, &PIMABlock)) != PIPE_RWSTREAM_NoError)\r
+ return ErrorCode;\r