drivers/usb/musb/musb_io.h

   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  */
  52 struct 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 */
  63 extern u8 (*musb_readb)(const void __iomem *addr, unsigned offset);
  64 extern void (*musb_writeb)(void __iomem *addr, unsigned offset, u8 data);
  65 extern u16 (*musb_readw)(const void __iomem *addr, unsigned offset);
  66 extern void (*musb_writew)(void __iomem *addr, unsigned offset, u16 data);
  67 extern u32 (*musb_readl)(const void __iomem *addr, unsigned offset);
  68 extern void (*musb_writel)(void __iomem *addr, unsigned offset, u32 data);
  69
  70 #endif