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add macro for u32 little endian access from ppc
author
theStack
<sebastian.falbesoner@gmail.com>
Wed, 16 Sep 2009 19:26:40 +0000
(21:26 +0200)
committer
theStack
<sebastian.falbesoner@gmail.com>
Wed, 16 Sep 2009 19:26:40 +0000
(21:26 +0200)
usb/host/ohci.c
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diff --git
a/usb/host/ohci.c
b/usb/host/ohci.c
index 5e50dba4af1f6fcab081da764ef7c7a6176310c9..ed71c40250dedda7a83fbc7ff34a92e41c81df24 100644
(file)
--- a/
usb/host/ohci.c
+++ b/
usb/host/ohci.c
@@
-18,6
+18,14
@@
Copyright (C) 2009 Sebastian Falbesoner <sebastian.falbesoner@gmail.com>
#include "host.h"
#include "../usbspec/usb11spec.h"
#include "host.h"
#include "../usbspec/usb11spec.h"
+// macro for accessing u32 variables that need to be in little endian byte order;
+// whenever you read or write from an u32 field that the ohci host controller
+// will read or write from too, use this macro for access!
+#define ACCESS_LE(dword) ( ((dword & 0xFF000000) >> 24) | \
+ ((dword & 0x00FF0000) >> 8) | \
+ ((dword & 0x0000FF00) << 8) | \
+ ((dword & 0x000000FF) << 24) )
+
static struct ohci_hcca hcca_oh0;
static struct endpoint_descriptor *allocate_endpoint()
static struct ohci_hcca hcca_oh0;
static struct endpoint_descriptor *allocate_endpoint()