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Add more const-ness to the stream endpoint/pipe functions where possible.
[pub/USBasp.git] / LUFA / Drivers / USB / LowLevel / Host.c
diff --git a/LUFA/Drivers/USB/LowLevel/Host.c b/LUFA/Drivers/USB/LowLevel/Host.c
index 2b66e28..e5dd4b0 100644 (file)
--- a/LUFA/Drivers/USB/LowLevel/Host.c
+++ b/LUFA/Drivers/USB/LowLevel/Host.c
@@ -1,21 +1,21 @@
 /*
              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 
+  Permission to use, copy, modify, distribute, and sell this
   software and its documentation for any purpose is hereby granted
   software and its documentation for any purpose is hereby granted
-  without fee, provided that the above copyright notice appear in 
+  without fee, provided that the above copyright notice appear in
   all copies and that both that the copyright notice and this
   all copies and that both that the copyright notice and this
-  permission notice and warranty disclaimer appear in supporting 
-  documentation, and that the name of the author not be used in 
-  advertising or publicity pertaining to distribution of the 
+  permission notice and warranty disclaimer appear in supporting
+  documentation, and that the name of the author not be used in
+  advertising or publicity pertaining to distribution of the
   software without specific, written prior permission.
 
   The author disclaim all warranties with regard to this
   software without specific, written prior permission.
 
   The author disclaim all warranties with regard to this
@@ -55,15 +55,15 @@ void USB_Host_ProcessNextHostState(void)
                                        ErrorCode     = HOST_ENUMERROR_WaitStage;
                                        break;
                                }
                                        ErrorCode     = HOST_ENUMERROR_WaitStage;
                                        break;
                                }
-                               
+
                                if (!(--WaitMSRemaining))
                                  USB_HostState = PostWaitState;
                        }
                                if (!(--WaitMSRemaining))
                                  USB_HostState = PostWaitState;
                        }
-               
+
                        break;
                case HOST_STATE_Powered:
                        WaitMSRemaining = HOST_DEVICE_SETTLE_DELAY_MS;
                        break;
                case HOST_STATE_Powered:
                        WaitMSRemaining = HOST_DEVICE_SETTLE_DELAY_MS;
-               
+
                        USB_HostState = HOST_STATE_Powered_WaitForDeviceSettle;
                        break;
                case HOST_STATE_Powered_WaitForDeviceSettle:
                        USB_HostState = HOST_STATE_Powered_WaitForDeviceSettle;
                        break;
                case HOST_STATE_Powered_WaitForDeviceSettle:
@@ -79,23 +79,23 @@ void USB_Host_ProcessNextHostState(void)
                                USB_OTGPAD_On();
                                USB_Host_VBUS_Auto_Enable();
                                USB_Host_VBUS_Auto_On();
                                USB_OTGPAD_On();
                                USB_Host_VBUS_Auto_Enable();
                                USB_Host_VBUS_Auto_On();
-                               
+
                                USB_HostState = HOST_STATE_Powered_WaitForConnect;
                        }
                                USB_HostState = HOST_STATE_Powered_WaitForConnect;
                        }
-                       
+
                        break;
                        break;
-               case HOST_STATE_Powered_WaitForConnect:         
+               case HOST_STATE_Powered_WaitForConnect:
                        if (USB_INT_HasOccurred(USB_INT_DCONNI))
                        if (USB_INT_HasOccurred(USB_INT_DCONNI))
-                       {       
+                       {
                                USB_INT_Clear(USB_INT_DCONNI);
                                USB_INT_Clear(USB_INT_DDISCI);
 
                                USB_INT_Clear(USB_INT_VBERRI);
                                USB_INT_Enable(USB_INT_VBERRI);
                                USB_INT_Clear(USB_INT_DCONNI);
                                USB_INT_Clear(USB_INT_DDISCI);
 
                                USB_INT_Clear(USB_INT_VBERRI);
                                USB_INT_Enable(USB_INT_VBERRI);
-                                       
+
                                USB_Host_ResumeBus();
                                Pipe_ClearPipes();
                                USB_Host_ResumeBus();
                                Pipe_ClearPipes();
-                               
+
                                HOST_TASK_NONBLOCK_WAIT(100, HOST_STATE_Powered_DoReset);
                        }
 
                                HOST_TASK_NONBLOCK_WAIT(100, HOST_STATE_Powered_DoReset);
                        }
 
@@ -108,8 +108,8 @@ void USB_Host_ProcessNextHostState(void)
                case HOST_STATE_Powered_ConfigPipe:
                        Pipe_ConfigurePipe(PIPE_CONTROLPIPE, EP_TYPE_CONTROL,
                                                           PIPE_TOKEN_SETUP, ENDPOINT_CONTROLEP,
                case HOST_STATE_Powered_ConfigPipe:
                        Pipe_ConfigurePipe(PIPE_CONTROLPIPE, EP_TYPE_CONTROL,
                                                           PIPE_TOKEN_SETUP, ENDPOINT_CONTROLEP,
-                                                          PIPE_CONTROLPIPE_DEFAULT_SIZE, PIPE_BANK_SINGLE);            
-               
+                                                          PIPE_CONTROLPIPE_DEFAULT_SIZE, PIPE_BANK_SINGLE);
+
                        if (!(Pipe_IsConfigured()))
                        {
                                ErrorCode    = HOST_ENUMERROR_PipeConfigError;
                        if (!(Pipe_IsConfigured()))
                        {
                                ErrorCode    = HOST_ENUMERROR_PipeConfigError;
@@ -138,9 +138,9 @@ void USB_Host_ProcessNextHostState(void)
                        }
 
                        USB_ControlPipeSize = DataBuffer[offsetof(USB_Descriptor_Device_t, Endpoint0Size)];
                        }
 
                        USB_ControlPipeSize = DataBuffer[offsetof(USB_Descriptor_Device_t, Endpoint0Size)];
-       
+
                        USB_Host_ResetDevice();
                        USB_Host_ResetDevice();
-                       
+
                        HOST_TASK_NONBLOCK_WAIT(200, HOST_STATE_Default_PostReset);
                        break;
                case HOST_STATE_Default_PostReset:
                        HOST_TASK_NONBLOCK_WAIT(200, HOST_STATE_Default_PostReset);
                        break;
                case HOST_STATE_Default_PostReset:
@@ -194,26 +194,27 @@ void USB_Host_ProcessNextHostState(void)
 
 uint8_t USB_Host_WaitMS(uint8_t MS)
 {
 
 uint8_t USB_Host_WaitMS(uint8_t MS)
 {
-       bool     BusSuspended        = USB_Host_IsBusSuspended();
-       uint8_t  ErrorCode           = HOST_WAITERROR_Successful;
-       uint16_t PreviousFrameNumber = USB_Host_GetFrameNumber();
-       
+       bool    BusSuspended = USB_Host_IsBusSuspended();
+       uint8_t ErrorCode    = HOST_WAITERROR_Successful;
+       bool    HSOFIEnabled = USB_INT_IsEnabled(USB_INT_HSOFI);
+
+       USB_INT_Disable(USB_INT_HSOFI);
+       USB_INT_Clear(USB_INT_HSOFI);
+
        USB_Host_ResumeBus();
 
        while (MS)
        {
        USB_Host_ResumeBus();
 
        while (MS)
        {
-               uint16_t CurrentFrameNumber = USB_Host_GetFrameNumber();
-
-               if (CurrentFrameNumber != PreviousFrameNumber)
+               if (USB_INT_HasOccurred(USB_INT_HSOFI))
                {
                {
-                       PreviousFrameNumber = CurrentFrameNumber;
+                       USB_INT_Clear(USB_INT_HSOFI);
                        MS--;
                }
                        MS--;
                }
-                                       
-               if ((USB_HostState == HOST_STATE_Unattached) || (USB_CurrentMode == USB_MODE_DEVICE))
+
+               if ((USB_HostState == HOST_STATE_Unattached) || (USB_CurrentMode != USB_MODE_Host))
                {
                        ErrorCode = HOST_WAITERROR_DeviceDisconnect;
                {
                        ErrorCode = HOST_WAITERROR_DeviceDisconnect;
-                       
+
                        break;
                }
 
                        break;
                }
 
@@ -221,22 +222,25 @@ uint8_t USB_Host_WaitMS(uint8_t MS)
                {
                        Pipe_ClearError();
                        ErrorCode = HOST_WAITERROR_PipeError;
                {
                        Pipe_ClearError();
                        ErrorCode = HOST_WAITERROR_PipeError;
-                       
+
                        break;
                }
                        break;
                }
-               
+
                if (Pipe_IsStalled() == true)
                {
                        Pipe_ClearStall();
                        ErrorCode = HOST_WAITERROR_SetupStalled;
                if (Pipe_IsStalled() == true)
                {
                        Pipe_ClearStall();
                        ErrorCode = HOST_WAITERROR_SetupStalled;
-                       
-                       break;                  
+
+                       break;
                }
        }
 
        if (BusSuspended)
          USB_Host_SuspendBus();
 
                }
        }
 
        if (BusSuspended)
          USB_Host_SuspendBus();
 
+       if (HSOFIEnabled)
+         USB_INT_Enable(USB_INT_HSOFI);
+
        return ErrorCode;
 }
 
        return ErrorCode;
 }
 
@@ -245,7 +249,7 @@ static void USB_Host_ResetDevice(void)
        bool BusSuspended = USB_Host_IsBusSuspended();
 
        USB_INT_Disable(USB_INT_DDISCI);
        bool BusSuspended = USB_Host_IsBusSuspended();
 
        USB_INT_Disable(USB_INT_DDISCI);
-       
+
        USB_Host_ResetBus();
        while (!(USB_Host_IsBusResetComplete()));
        USB_Host_ResumeBus();
        USB_Host_ResetBus();
        while (!(USB_Host_IsBusResetComplete()));
        USB_Host_ResumeBus();
@@ -254,7 +258,7 @@ static void USB_Host_ResetDevice(void)
 
        USB_INT_Disable(USB_INT_HSOFI);
        USB_INT_Clear(USB_INT_HSOFI);
 
        USB_INT_Disable(USB_INT_HSOFI);
        USB_INT_Clear(USB_INT_HSOFI);
-       
+
        for (uint8_t MSRem = 10; MSRem != 0; MSRem--)
        {
                /* Workaround for powerless-pull-up devices. After a USB bus reset,
        for (uint8_t MSRem = 10; MSRem != 0; MSRem--)
        {
                /* Workaround for powerless-pull-up devices. After a USB bus reset,
@@ -268,7 +272,7 @@ static void USB_Host_ResetDevice(void)
                        USB_INT_Clear(USB_INT_DDISCI);
                        break;
                }
                        USB_INT_Clear(USB_INT_DDISCI);
                        break;
                }
-               
+
                _delay_ms(1);
        }
 
                _delay_ms(1);
        }
 
@@ -293,7 +297,7 @@ uint8_t USB_Host_SetDeviceConfiguration(const uint8_t ConfigNumber)
                };
 
        Pipe_SelectPipe(PIPE_CONTROLPIPE);
                };
 
        Pipe_SelectPipe(PIPE_CONTROLPIPE);
-       
+
        return USB_Host_SendControlRequest(NULL);
 }
 
        return USB_Host_SendControlRequest(NULL);
 }
 
@@ -309,7 +313,7 @@ uint8_t USB_Host_GetDeviceDescriptor(void* const DeviceDescriptorPtr)
                };
 
        Pipe_SelectPipe(PIPE_CONTROLPIPE);
                };
 
        Pipe_SelectPipe(PIPE_CONTROLPIPE);
-       
+
        return USB_Host_SendControlRequest(DeviceDescriptorPtr);
 }
 
        return USB_Host_SendControlRequest(DeviceDescriptorPtr);
 }
 
@@ -327,27 +331,25 @@ uint8_t USB_Host_GetDeviceStringDescriptor(const uint8_t Index,
                };
 
        Pipe_SelectPipe(PIPE_CONTROLPIPE);
                };
 
        Pipe_SelectPipe(PIPE_CONTROLPIPE);
-       
+
        return USB_Host_SendControlRequest(Buffer);
 }
 
        return USB_Host_SendControlRequest(Buffer);
 }
 
-uint8_t USB_Host_ClearPipeStall(uint8_t EndpointNum)
+uint8_t USB_Host_ClearPipeStall(const uint8_t EndpointNum)
 {
 {
-       if (Pipe_GetPipeToken() == PIPE_TOKEN_IN)
-         EndpointNum |= ENDPOINT_DESCRIPTOR_DIR_IN;
-
        USB_ControlRequest = (USB_Request_Header_t)
                {
                        .bmRequestType = (REQDIR_HOSTTODEVICE | REQTYPE_STANDARD | REQREC_ENDPOINT),
                        .bRequest      = REQ_ClearFeature,
        USB_ControlRequest = (USB_Request_Header_t)
                {
                        .bmRequestType = (REQDIR_HOSTTODEVICE | REQTYPE_STANDARD | REQREC_ENDPOINT),
                        .bRequest      = REQ_ClearFeature,
-                       .wValue        = FEATURE_ENDPOINT_HALT,
+                       .wValue        = FEATURE_SEL_EndpointHalt,
                        .wIndex        = EndpointNum,
                        .wLength       = 0,
                };
 
        Pipe_SelectPipe(PIPE_CONTROLPIPE);
                        .wIndex        = EndpointNum,
                        .wLength       = 0,
                };
 
        Pipe_SelectPipe(PIPE_CONTROLPIPE);
-       
+
        return USB_Host_SendControlRequest(NULL);
 }
 
 #endif
        return USB_Host_SendControlRequest(NULL);
 }
 
 #endif
+
USB isp AVR programmer