Speed up bit-banged USART code in the AVRISP project.

[pub/USBasp.git] / LUFA / Drivers / USB / LowLevel / DevChapter9.c

diff --git a/LUFA/Drivers/USB/LowLevel/DevChapter9.c b/LUFA/Drivers/USB/LowLevel/DevChapter9.c
index 50afb61..6e7b2c7 100644 (file)
--- a/LUFA/Drivers/USB/LowLevel/DevChapter9.c
+++ b/LUFA/Drivers/USB/LowLevel/DevChapter9.c
@@ -121,7 +121,7 @@ static void USB_Device_SetAddress(void)
 \r
        Endpoint_ClearSETUP();\r
        \r
-       Endpoint_ClearIN();\r
+       Endpoint_ClearStatusStage();\r
        \r
        while (!(Endpoint_IsINReady()))\r
        {\r
@@ -129,11 +129,11 @@ static void USB_Device_SetAddress(void)
                  return;\r
        }\r
 \r
-       UDADDR = ((1 << ADDEN) | DeviceAddress);\r
-\r
        if (DeviceAddress)\r
          USB_DeviceState = DEVICE_STATE_Addressed;\r
 \r
+       UDADDR = ((1 << ADDEN) | DeviceAddress);\r
+\r
        return;\r
 }\r
 \r
@@ -190,12 +190,9 @@ static void USB_Device_SetConfiguration(void)
 \r
        USB_ConfigurationNumber = (uint8_t)USB_ControlRequest.wValue;\r
 \r
-       Endpoint_ClearIN();\r
+       Endpoint_ClearStatusStage();\r
 \r
-       if (USB_ConfigurationNumber)\r
-         USB_DeviceState = DEVICE_STATE_Configured;\r
-       else\r
-         USB_DeviceState = DEVICE_STATE_Addressed;\r
+       USB_DeviceState = (USB_ConfigurationNumber) ? DEVICE_STATE_Configured : DEVICE_STATE_Addressed;\r
 \r
        EVENT_USB_Device_ConfigurationChanged();\r
 }\r
@@ -205,16 +202,9 @@ void USB_Device_GetConfiguration(void)
        Endpoint_ClearSETUP();\r
 \r
        Endpoint_Write_Byte(USB_ConfigurationNumber);\r
-       \r
        Endpoint_ClearIN();\r
 \r
-       while (!(Endpoint_IsOUTReceived()))\r
-       {\r
-               if (USB_DeviceState == DEVICE_STATE_Unattached)\r
-                 return;       \r
-       }\r
-\r
-       Endpoint_ClearOUT();\r
+       Endpoint_ClearStatusStage();\r
 }\r
 \r
 #if !defined(NO_INTERNAL_SERIAL) && (defined(USB_SERIES_6_AVR) || defined(USB_SERIES_7_AVR))\r
@@ -232,10 +222,10 @@ static void USB_Device_GetInternalSerialDescriptor(void)
                int16_t                 UnicodeString[20];\r
        } SignatureDescriptor;\r
 \r
-       SignatureDescriptor.Header.Size  = sizeof(SignatureDescriptor);\r
-       SignatureDescriptor.Header.Type  = DTYPE_String;\r
+       SignatureDescriptor.Header.Type = DTYPE_String;\r
+       SignatureDescriptor.Header.Size = sizeof(SignatureDescriptor);\r
        \r
-       uint8_t  SigReadAddress     = 0x0E;\r
+       uint8_t SigReadAddress = 0x0E;\r
 \r
        for (uint8_t SerialCharNum = 0; SerialCharNum < 20; SerialCharNum++)\r
        {\r
@@ -251,7 +241,9 @@ static void USB_Device_GetInternalSerialDescriptor(void)
        }\r
        \r
        Endpoint_ClearSETUP();\r
+\r
        Endpoint_Write_Control_Stream_LE(&SignatureDescriptor, sizeof(SignatureDescriptor));\r
+\r
        Endpoint_ClearOUT();\r
 }\r
 #endif\r
@@ -319,7 +311,7 @@ static void USB_Device_GetStatus(void)
                        break;\r
 #if !defined(CONTROL_ONLY_DEVICE)\r
                case (REQDIR_DEVICETOHOST | REQTYPE_STANDARD | REQREC_ENDPOINT):\r
-                       Endpoint_SelectEndpoint((uint8_t)USB_ControlRequest.wIndex);\r
+                       Endpoint_SelectEndpoint(USB_ControlRequest.wIndex & 0xFF);\r
 \r
                        CurrentStatus = Endpoint_IsStalled();\r
 \r
@@ -334,16 +326,9 @@ static void USB_Device_GetStatus(void)
        Endpoint_ClearSETUP();\r
 \r
        Endpoint_Write_Word_LE(CurrentStatus);\r
-\r
        Endpoint_ClearIN();\r
        \r
-       while (!(Endpoint_IsOUTReceived()))\r
-       {\r
-               if (USB_DeviceState == DEVICE_STATE_Unattached)\r
-                 return;       \r
-       }\r
-       \r
-       Endpoint_ClearOUT();\r
+       Endpoint_ClearStatusStage();\r
 }\r
 \r
 static void USB_Device_ClearSetFeature(void)\r
@@ -370,16 +355,16 @@ static void USB_Device_ClearSetFeature(void)
 \r
                                if (Endpoint_IsEnabled())\r
                                {                               \r
-                                       if (USB_ControlRequest.bRequest == REQ_ClearFeature)\r
+                                       if (USB_ControlRequest.bRequest == REQ_SetFeature)\r
                                        {\r
-                                               Endpoint_ClearStall();\r
-                                               Endpoint_ResetFIFO(EndpointIndex);\r
-                                               Endpoint_ResetDataToggle();\r
+                                               Endpoint_StallTransaction();\r
                                        }\r
                                        else\r
                                        {\r
-                                               Endpoint_StallTransaction();\r
-                                       }\r
+                                               Endpoint_ClearStall();\r
+                                               Endpoint_ResetFIFO(EndpointIndex);\r
+                                               Endpoint_ResetDataToggle();\r
+                                       }                                       \r
                                }\r
                        }\r
                        \r
@@ -391,7 +376,7 @@ static void USB_Device_ClearSetFeature(void)
 \r
        Endpoint_ClearSETUP();\r
 \r
-       Endpoint_ClearIN();\r
+       Endpoint_ClearStatusStage();\r
 }\r
 \r
 #endif\r