USB: UHCI: Wrap I/O register accesses

This patch is part of a series that extend the UHCI HCD to support
non-PCI controllers.

This patch replaces in{b,w,l} and out{b,wl} with calls to local inline
functions. This is done so that the register access functions can be
extended to support register areas not mapped in PCI I/O space.

Signed-off-by: Jan Andersson <jan@gaisler.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

1 files changed, 30 insertions, 0 deletions

diff --git a/drivers/usb/host/uhci-hcd.h b/drivers/usb/host/uhci-hcd.h
index 569437954578..a6de241bf966 100644
--- a/drivers/usb/host/uhci-hcd.h
+++ b/drivers/usb/host/uhci-hcd.h
@@ -481,4 +481,34 @@ struct urb_priv {
 #define PCI_VENDOR_ID_GENESYS           0x17a0
 #define PCI_DEVICE_ID_GL880S_UHCI       0x8083
 
+static inline u32 uhci_readl(struct uhci_hcd *uhci, int reg)
+{
+        return inl(uhci->io_addr + reg);
+}
+
+static inline void uhci_writel(struct uhci_hcd *uhci, u32 val, int reg)
+{
+        outl(val, uhci->io_addr + reg);
+}
+
+static inline u16 uhci_readw(struct uhci_hcd *uhci, int reg)
+{
+        return inw(uhci->io_addr + reg);
+}
+
+static inline void uhci_writew(struct uhci_hcd *uhci, u16 val, int reg)
+{
+        outw(val, uhci->io_addr + reg);
+}
+
+static inline u8 uhci_readb(struct uhci_hcd *uhci, int reg)
+{
+        return inb(uhci->io_addr + reg);
+}
+
+static inline void uhci_writeb(struct uhci_hcd *uhci, u8 val, int reg)
+{
+        outb(val, uhci->io_addr + reg);
+}
+
 #endif