Add more const-ness to the stream endpoint/pipe functions where possible.

[pub/USBasp.git] / LUFA / Drivers / USB / Class / Host / Printer.c

diff --git a/LUFA/Drivers/USB/Class/Host/Printer.c b/LUFA/Drivers/USB/Class/Host/Printer.c
index ec56c31..a086a53 100644 (file)
--- a/LUFA/Drivers/USB/Class/Host/Printer.c
+++ b/LUFA/Drivers/USB/Class/Host/Printer.c
@@ -1,13 +1,13 @@
 /*
              LUFA Library
 /*
              LUFA Library

-     Copyright (C) Dean Camera, 2010.
+     Copyright (C) Dean Camera, 2011.

 
   dean [at] fourwalledcubicle [dot] com
 
   dean [at] fourwalledcubicle [dot] com

-      www.fourwalledcubicle.com
+           www.lufa-lib.org

 */
 
 /*
 */
 
 /*

-  Copyright 2010  Dean Camera (dean [at] fourwalledcubicle [dot] com)
+  Copyright 2011  Dean Camera (dean [at] fourwalledcubicle [dot] com)

 
   Permission to use, copy, modify, distribute, and sell this
   software and its documentation for any purpose is hereby granted
 
   Permission to use, copy, modify, distribute, and sell this
   software and its documentation for any purpose is hereby granted


@@ -38,7 +38,7 @@
 
 uint8_t PRNT_Host_ConfigurePipes(USB_ClassInfo_PRNT_Host_t* const PRNTInterfaceInfo,
                                  uint16_t ConfigDescriptorSize,
 
 uint8_t PRNT_Host_ConfigurePipes(USB_ClassInfo_PRNT_Host_t* const PRNTInterfaceInfo,
                                  uint16_t ConfigDescriptorSize,

-                                                            void* DeviceConfigDescriptor)
+                                                            void* ConfigDescriptorData)

 {
        USB_Descriptor_Endpoint_t*  DataINEndpoint   = NULL;
        USB_Descriptor_Endpoint_t*  DataOUTEndpoint  = NULL;
 {
        USB_Descriptor_Endpoint_t*  DataINEndpoint   = NULL;
        USB_Descriptor_Endpoint_t*  DataOUTEndpoint  = NULL;


@@ -46,22 +46,22 @@ uint8_t PRNT_Host_ConfigurePipes(USB_ClassInfo_PRNT_Host_t* const PRNTInterfaceI
 
        memset(&PRNTInterfaceInfo->State, 0x00, sizeof(PRNTInterfaceInfo->State));
 
 
        memset(&PRNTInterfaceInfo->State, 0x00, sizeof(PRNTInterfaceInfo->State));
 

-       if (DESCRIPTOR_TYPE(DeviceConfigDescriptor) != DTYPE_Configuration)
+       if (DESCRIPTOR_TYPE(ConfigDescriptorData) != DTYPE_Configuration)

          return PRNT_ENUMERROR_InvalidConfigDescriptor;
 
        while (!(DataINEndpoint) || !(DataOUTEndpoint))
        {
                if (!(PrinterInterface) ||
          return PRNT_ENUMERROR_InvalidConfigDescriptor;
 
        while (!(DataINEndpoint) || !(DataOUTEndpoint))
        {
                if (!(PrinterInterface) ||

-                   USB_GetNextDescriptorComp(&ConfigDescriptorSize, &DeviceConfigDescriptor,
+                   USB_GetNextDescriptorComp(&ConfigDescriptorSize, &ConfigDescriptorData,

                                              DCOMP_PRNT_Host_NextPRNTInterfaceEndpoint) != DESCRIPTOR_SEARCH_COMP_Found)
                {
                                              DCOMP_PRNT_Host_NextPRNTInterfaceEndpoint) != DESCRIPTOR_SEARCH_COMP_Found)
                {

-                       if (USB_GetNextDescriptorComp(&ConfigDescriptorSize, &DeviceConfigDescriptor,
+                       if (USB_GetNextDescriptorComp(&ConfigDescriptorSize, &ConfigDescriptorData,

                                                      DCOMP_PRNT_Host_NextPRNTInterface) != DESCRIPTOR_SEARCH_COMP_Found)
                        {
                                return PRNT_ENUMERROR_NoCompatibleInterfaceFound;
                        }
 
                                                      DCOMP_PRNT_Host_NextPRNTInterface) != DESCRIPTOR_SEARCH_COMP_Found)
                        {
                                return PRNT_ENUMERROR_NoCompatibleInterfaceFound;
                        }
 

-                       PrinterInterface = DESCRIPTOR_PCAST(DeviceConfigDescriptor, USB_Descriptor_Interface_t);
+                       PrinterInterface = DESCRIPTOR_PCAST(ConfigDescriptorData, USB_Descriptor_Interface_t);

 
                        DataINEndpoint  = NULL;
                        DataOUTEndpoint = NULL;
 
                        DataINEndpoint  = NULL;
                        DataOUTEndpoint = NULL;


@@ -69,7 +69,7 @@ uint8_t PRNT_Host_ConfigurePipes(USB_ClassInfo_PRNT_Host_t* const PRNTInterfaceI
                        continue;
                }
 
                        continue;
                }
 

-               USB_Descriptor_Endpoint_t* EndpointData = DESCRIPTOR_PCAST(DeviceConfigDescriptor, USB_Descriptor_Endpoint_t);
+               USB_Descriptor_Endpoint_t* EndpointData = DESCRIPTOR_PCAST(ConfigDescriptorData, USB_Descriptor_Endpoint_t);

 
                if (EndpointData->EndpointAddress & ENDPOINT_DESCRIPTOR_DIR_IN)
                  DataINEndpoint  = EndpointData;
 
                if (EndpointData->EndpointAddress & ENDPOINT_DESCRIPTOR_DIR_IN)
                  DataINEndpoint  = EndpointData;


@@ -79,22 +79,42 @@ uint8_t PRNT_Host_ConfigurePipes(USB_ClassInfo_PRNT_Host_t* const PRNTInterfaceI
 
        for (uint8_t PipeNum = 1; PipeNum < PIPE_TOTAL_PIPES; PipeNum++)
        {
 
        for (uint8_t PipeNum = 1; PipeNum < PIPE_TOTAL_PIPES; PipeNum++)
        {

+               uint16_t Size;
+               uint8_t  Type;
+               uint8_t  Token;
+               uint8_t  EndpointAddress;
+               bool     DoubleBanked;
+

                if (PipeNum == PRNTInterfaceInfo->Config.DataINPipeNumber)
                {
                if (PipeNum == PRNTInterfaceInfo->Config.DataINPipeNumber)
                {

-                       Pipe_ConfigurePipe(PipeNum, EP_TYPE_BULK, PIPE_TOKEN_IN,
-                                          DataINEndpoint->EndpointAddress, DataINEndpoint->EndpointSize,
-                                          PRNTInterfaceInfo->Config.DataINPipeDoubleBank ? PIPE_BANK_DOUBLE : PIPE_BANK_SINGLE);
+                       Size            = DataINEndpoint->EndpointSize;
+                       EndpointAddress = DataINEndpoint->EndpointAddress;
+                       Token           = PIPE_TOKEN_IN;
+                       Type            = EP_TYPE_BULK;
+                       DoubleBanked    = PRNTInterfaceInfo->Config.DataINPipeDoubleBank;

 
                        PRNTInterfaceInfo->State.DataINPipeSize = DataINEndpoint->EndpointSize;
                }
                else if (PipeNum == PRNTInterfaceInfo->Config.DataOUTPipeNumber)
                {
 
                        PRNTInterfaceInfo->State.DataINPipeSize = DataINEndpoint->EndpointSize;
                }
                else if (PipeNum == PRNTInterfaceInfo->Config.DataOUTPipeNumber)
                {

-                       Pipe_ConfigurePipe(PipeNum, EP_TYPE_BULK, PIPE_TOKEN_OUT,
-                                          DataOUTEndpoint->EndpointAddress, DataOUTEndpoint->EndpointSize,
-                                          PRNTInterfaceInfo->Config.DataOUTPipeDoubleBank ? PIPE_BANK_DOUBLE : PIPE_BANK_SINGLE);
+                       Size            = DataOUTEndpoint->EndpointSize;
+                       EndpointAddress = DataOUTEndpoint->EndpointAddress;
+                       Token           = PIPE_TOKEN_OUT;
+                       Type            = EP_TYPE_BULK;
+                       DoubleBanked    = PRNTInterfaceInfo->Config.DataOUTPipeDoubleBank;

 
                        PRNTInterfaceInfo->State.DataOUTPipeSize = DataOUTEndpoint->EndpointSize;
                }
 
                        PRNTInterfaceInfo->State.DataOUTPipeSize = DataOUTEndpoint->EndpointSize;
                }

+               else
+               {
+                       continue;
+               }
+
+               if (!(Pipe_ConfigurePipe(PipeNum, Type, Token, EndpointAddress, Size,
+                                        DoubleBanked ? PIPE_BANK_DOUBLE : PIPE_BANK_SINGLE)))
+               {
+                       return PRNT_ENUMERROR_PipeConfigurationFailed;
+               }

        }
 
        PRNTInterfaceInfo->State.InterfaceNumber  = PrinterInterface->InterfaceNumber;
        }
 
        PRNTInterfaceInfo->State.InterfaceNumber  = PrinterInterface->InterfaceNumber;


@@ -106,14 +126,15 @@ uint8_t PRNT_Host_ConfigurePipes(USB_ClassInfo_PRNT_Host_t* const PRNTInterfaceI
 
 static uint8_t DCOMP_PRNT_Host_NextPRNTInterface(void* CurrentDescriptor)
 {
 
 static uint8_t DCOMP_PRNT_Host_NextPRNTInterface(void* CurrentDescriptor)
 {

-       if (DESCRIPTOR_TYPE(CurrentDescriptor) == DTYPE_Interface)
+       USB_Descriptor_Header_t* Header = DESCRIPTOR_PCAST(CurrentDescriptor, USB_Descriptor_Header_t);
+
+       if (Header->Type == DTYPE_Interface)

        {
        {

-               USB_Descriptor_Interface_t* CurrentInterface = DESCRIPTOR_PCAST(CurrentDescriptor,
-                                                                               USB_Descriptor_Interface_t);
+               USB_Descriptor_Interface_t* Interface = DESCRIPTOR_PCAST(CurrentDescriptor, USB_Descriptor_Interface_t);

 
 

-               if ((CurrentInterface->Class    == PRNT_CSCP_PrinterClass)    &&
-                   (CurrentInterface->SubClass == PRNT_CSCP_PrinterSubclass) &&
-                   (CurrentInterface->Protocol == PRNT_CSCP_BidirectionalProtocol))
+               if ((Interface->Class    == PRNT_CSCP_PrinterClass)    &&
+                   (Interface->SubClass == PRNT_CSCP_PrinterSubclass) &&
+                   (Interface->Protocol == PRNT_CSCP_BidirectionalProtocol))

                {
                        return DESCRIPTOR_SEARCH_Found;
                }
                {
                        return DESCRIPTOR_SEARCH_Found;
                }


@@ -124,15 +145,18 @@ static uint8_t DCOMP_PRNT_Host_NextPRNTInterface(void* CurrentDescriptor)
 
 static uint8_t DCOMP_PRNT_Host_NextPRNTInterfaceEndpoint(void* CurrentDescriptor)
 {
 
 static uint8_t DCOMP_PRNT_Host_NextPRNTInterfaceEndpoint(void* CurrentDescriptor)
 {

-       if (DESCRIPTOR_TYPE(CurrentDescriptor) == DTYPE_Endpoint)
+       USB_Descriptor_Header_t* Header = DESCRIPTOR_PCAST(CurrentDescriptor, USB_Descriptor_Header_t);
+
+       if (Header->Type == DTYPE_Endpoint)

        {
        {

-               uint8_t EndpointType = (DESCRIPTOR_CAST(CurrentDescriptor,
-                                                       USB_Descriptor_Endpoint_t).Attributes & EP_TYPE_MASK);
+               USB_Descriptor_Endpoint_t* Endpoint = DESCRIPTOR_PCAST(CurrentDescriptor, USB_Descriptor_Endpoint_t);
+
+               uint8_t EndpointType = (Endpoint->Attributes & EP_TYPE_MASK);

 
                if (EndpointType == EP_TYPE_BULK)
                  return DESCRIPTOR_SEARCH_Found;
        }
 
                if (EndpointType == EP_TYPE_BULK)
                  return DESCRIPTOR_SEARCH_Found;
        }

-       else if (DESCRIPTOR_TYPE(CurrentDescriptor) == DTYPE_Interface)
+       else if (Header->Type == DTYPE_Interface)

        {
                return DESCRIPTOR_SEARCH_Fail;
        }
        {
                return DESCRIPTOR_SEARCH_Fail;
        }


@@ -263,8 +287,31 @@ uint8_t PRNT_Host_SendByte(USB_ClassInfo_PRNT_Host_t* const PRNTInterfaceInfo,
 }
 
 uint8_t PRNT_Host_SendString(USB_ClassInfo_PRNT_Host_t* const PRNTInterfaceInfo,
 }
 
 uint8_t PRNT_Host_SendString(USB_ClassInfo_PRNT_Host_t* const PRNTInterfaceInfo,

-                             void* Buffer,
-                             const uint16_t Length)
+                             void* String)
+{
+       uint8_t ErrorCode;
+
+       if ((USB_HostState != HOST_STATE_Configured) || !(PRNTInterfaceInfo->State.IsActive))
+         return PIPE_RWSTREAM_DeviceDisconnected;
+
+       Pipe_SelectPipe(PRNTInterfaceInfo->Config.DataOUTPipeNumber);
+       Pipe_Unfreeze();
+
+       if ((ErrorCode = Pipe_Write_Stream_LE(String, strlen(String), NULL)) != PIPE_RWSTREAM_NoError)
+         return ErrorCode;
+
+       Pipe_ClearOUT();
+
+       ErrorCode = Pipe_WaitUntilReady();
+
+       Pipe_Freeze();
+
+       return ErrorCode;
+}
+
+uint8_t PRNT_Host_SendData(USB_ClassInfo_PRNT_Host_t* const PRNTInterfaceInfo,
+                           void* Buffer,
+                           const uint16_t Length)

 {
        uint8_t ErrorCode;
 
 {
        uint8_t ErrorCode;
 


@@ -274,7 +321,7 @@ uint8_t PRNT_Host_SendString(USB_ClassInfo_PRNT_Host_t* const PRNTInterfaceInfo,
        Pipe_SelectPipe(PRNTInterfaceInfo->Config.DataOUTPipeNumber);
        Pipe_Unfreeze();
 
        Pipe_SelectPipe(PRNTInterfaceInfo->Config.DataOUTPipeNumber);
        Pipe_Unfreeze();
 

-       if ((ErrorCode = Pipe_Write_Stream_LE(Buffer, Length, NO_STREAM_CALLBACK)) != PIPE_RWSTREAM_NoError)
+       if ((ErrorCode = Pipe_Write_Stream_LE(Buffer, Length, NULL)) != PIPE_RWSTREAM_NoError)

          return ErrorCode;
 
        Pipe_ClearOUT();
          return ErrorCode;
 
        Pipe_ClearOUT();