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path: root/LUFA/Drivers/USB/HighLevel/Template/Template_Pipe_RW.c
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Diffstat (limited to 'LUFA/Drivers/USB/HighLevel/Template/Template_Pipe_RW.c')
-rw-r--r--LUFA/Drivers/USB/HighLevel/Template/Template_Pipe_RW.c83
1 files changed, 83 insertions, 0 deletions
diff --git a/LUFA/Drivers/USB/HighLevel/Template/Template_Pipe_RW.c b/LUFA/Drivers/USB/HighLevel/Template/Template_Pipe_RW.c
new file mode 100644
index 0000000..3f8d91f
--- /dev/null
+++ b/LUFA/Drivers/USB/HighLevel/Template/Template_Pipe_RW.c
@@ -0,0 +1,83 @@
+uint8_t TEMPLATE_FUNC_NAME (TEMPLATE_BUFFER_TYPE Buffer,
+ uint16_t Length
+ __CALLBACK_PARAM)
+{
+ uint8_t* DataStream = ((uint8_t*)Buffer + TEMPLATE_BUFFER_OFFSET(Length));
+ uint8_t ErrorCode;
+
+ Pipe_SetPipeToken(TEMPLATE_TOKEN);
+
+ if ((ErrorCode = Pipe_WaitUntilReady()))
+ return ErrorCode;
+
+ #if defined(FAST_STREAM_TRANSFERS)
+ uint8_t BytesRemToAlignment = (Pipe_BytesInPipe() & 0x07);
+
+ if (Length >= 8)
+ {
+ Length -= BytesRemToAlignment;
+
+ switch (BytesRemToAlignment)
+ {
+ default:
+ do
+ {
+ if (!(Pipe_IsReadWriteAllowed()))
+ {
+ TEMPLATE_CLEAR_PIPE();
+
+ #if !defined(NO_STREAM_CALLBACKS)
+ if ((Callback != NULL) && (Callback() == STREAMCALLBACK_Abort))
+ return PIPE_RWSTREAM_CallbackAborted;
+ #endif
+
+ if ((ErrorCode = Pipe_WaitUntilReady()))
+ return ErrorCode;
+ }
+
+ Length -= 8;
+
+ TEMPLATE_TRANSFER_BYTE(DataStream);
+ case 7: TEMPLATE_TRANSFER_BYTE(DataStream);
+ case 6: TEMPLATE_TRANSFER_BYTE(DataStream);
+ case 5: TEMPLATE_TRANSFER_BYTE(DataStream);
+ case 4: TEMPLATE_TRANSFER_BYTE(DataStream);
+ case 3: TEMPLATE_TRANSFER_BYTE(DataStream);
+ case 2: TEMPLATE_TRANSFER_BYTE(DataStream);
+ case 1: TEMPLATE_TRANSFER_BYTE(DataStream);
+ } while (Length >= 8);
+ }
+ }
+ #endif
+
+ while (Length)
+ {
+ if (!(Pipe_IsReadWriteAllowed()))
+ {
+ TEMPLATE_CLEAR_PIPE();
+
+ #if !defined(NO_STREAM_CALLBACKS)
+ if ((Callback != NULL) && (Callback() == STREAMCALLBACK_Abort))
+ return PIPE_RWSTREAM_CallbackAborted;
+ #endif
+
+ if ((ErrorCode = Pipe_WaitUntilReady()))
+ return ErrorCode;
+ }
+ else
+ {
+ TEMPLATE_TRANSFER_BYTE(DataStream);
+ Length--;
+ }
+ }
+
+ return PIPE_RWSTREAM_NoError;
+}
+
+#undef TEMPLATE_FUNC_NAME
+#undef TEMPLATE_BUFFER_TYPE
+#undef TEMPLATE_TOKEN
+#undef TEMPLATE_TRANSFER_BYTE
+#undef TEMPLATE_CLEAR_PIPE
+#undef TEMPLATE_BUFFER_OFFSET
+