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kernel/linux-rt-4.4.41/drivers/usb/musb/musb_io.h 2.97 KB
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  /*
   * MUSB OTG driver register I/O
   *
   * Copyright 2005 Mentor Graphics Corporation
   * Copyright (C) 2005-2006 by Texas Instruments
   * Copyright (C) 2006-2007 Nokia Corporation
   *
   * This program is free software; you can redistribute it and/or
   * modify it under the terms of the GNU General Public License
   * version 2 as published by the Free Software Foundation.
   *
   * This program is distributed in the hope that it will be useful, but
   * WITHOUT ANY WARRANTY; without even the implied warranty of
   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   * General Public License for more details.
   *
   * You should have received a copy of the GNU General Public License
   * along with this program; if not, write to the Free Software
   * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
   * 02110-1301 USA
   *
   * THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED
   * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
   * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN
   * NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY DIRECT, INDIRECT,
   * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
   * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
   * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
   * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
   * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
   * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
   *
   */
  
  #ifndef __MUSB_LINUX_PLATFORM_ARCH_H__
  #define __MUSB_LINUX_PLATFORM_ARCH_H__
  
  #include <linux/io.h>
  
  #define musb_ep_select(_mbase, _epnum)	musb->io.ep_select((_mbase), (_epnum))
  
  /**
   * struct musb_io - IO functions for MUSB
   * @quirks:	platform specific flags
   * @ep_offset:	platform specific function to get end point offset
   * @ep_select:	platform specific function to select end point
   * @fifo_offset: platform specific function to get fifo offset
   * @read_fifo:	platform specific function to read fifo
   * @write_fifo:	platform specific function to write fifo
   * @busctl_offset: platform specific function to get busctl offset
   */
  struct musb_io {
  	u32	quirks;
  	u32	(*ep_offset)(u8 epnum, u16 offset);
  	void	(*ep_select)(void __iomem *mbase, u8 epnum);
  	u32	(*fifo_offset)(u8 epnum);
  	void	(*read_fifo)(struct musb_hw_ep *hw_ep, u16 len, u8 *buf);
  	void	(*write_fifo)(struct musb_hw_ep *hw_ep, u16 len, const u8 *buf);
  	u32	(*busctl_offset)(u8 epnum, u16 offset);
  };
  
  /* Do not add new entries here, add them the struct musb_io instead */
  extern u8 (*musb_readb)(const void __iomem *addr, unsigned offset);
  extern void (*musb_writeb)(void __iomem *addr, unsigned offset, u8 data);
  extern u16 (*musb_readw)(const void __iomem *addr, unsigned offset);
  extern void (*musb_writew)(void __iomem *addr, unsigned offset, u16 data);
  extern u32 (*musb_readl)(const void __iomem *addr, unsigned offset);
  extern void (*musb_writel)(void __iomem *addr, unsigned offset, u32 data);
  
  #endif