LXR linux/drivers/usb/musb/musb

   1/*
   2 * MUSB OTG driver register I/O
   3 *
   4 * Copyright 2005 Mentor Graphics Corporation
   5 * Copyright (C) 2005-2006 by Texas Instruments
   6 * Copyright (C) 2006-2007 Nokia Corporation
   7 *
   8 * This program is free software; you can redistribute it and/or
   9 * modify it under the terms of the GNU General Public License
  10 * version 2 as published by the Free Software Foundation.
  11 *
  12 * This program is distributed in the hope that it will be useful, but
  13 * WITHOUT ANY WARRANTY; without even the implied warranty of
  14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15 * General Public License for more details.
  16 *
  17 * You should have received a copy of the GNU General Public License
  18 * along with this program; if not, write to the Free Software
  19 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
  20 * 02110-1301 USA
  21 *
  22 * THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED
  23 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
  24 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN
  25 * NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY DIRECT, INDIRECT,
  26 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  27 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
  28 * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
  29 * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  30 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  31 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  32 *
  33 */
  34
  35#ifndef __MUSB_LINUX_PLATFORM_ARCH_H__
  36#define __MUSB_LINUX_PLATFORM_ARCH_H__
  37
  38#include <linux/io.h>
  39
  40#define musb_ep_select(_mbase, _epnum)  musb->io.ep_select((_mbase), (_epnum))
  41
  42/**
  43 * struct musb_io - IO functions for MUSB
  44 * @quirks:     platform specific flags
  45 * @ep_offset:  platform specific function to get end point offset
  46 * @ep_select:  platform specific function to select end point
  47 * @fifo_offset: platform specific function to get fifo offset
  48 * @read_fifo:  platform specific function to read fifo
  49 * @write_fifo: platform specific function to write fifo
  50 * @busctl_offset: platform specific function to get busctl offset
  51 */
  52struct musb_io {
  53        u32     quirks;
  54        u32     (*ep_offset)(u8 epnum, u16 offset);
  55        void    (*ep_select)(void __iomem *mbase, u8 epnum);
  56        u32     (*fifo_offset)(u8 epnum);
  57        void    (*read_fifo)(struct musb_hw_ep *hw_ep, u16 len, u8 *buf);
  58        void    (*write_fifo)(struct musb_hw_ep *hw_ep, u16 len, const u8 *buf);
  59        u32     (*busctl_offset)(u8 epnum, u16 offset);
  60};
  61
  62/* Do not add new entries here, add them the struct musb_io instead */
  63extern u8 (*musb_readb)(const void __iomem *addr, unsigned offset);
  64extern void (*musb_writeb)(void __iomem *addr, unsigned offset, u8 data);
  65extern u16 (*musb_readw)(const void __iomem *addr, unsigned offset);
  66extern void (*musb_writew)(void __iomem *addr, unsigned offset, u16 data);
  67extern u32 (*musb_readl)(const void __iomem *addr, unsigned offset);
  68extern void (*musb_writel)(void __iomem *addr, unsigned offset, u32 data);
  69
  70#endif
  71