drivers/usb/musb/musb_io.h

   1 // SPDX-License-Identifier: GPL-2.0
   2 /*
   3  * MUSB OTG driver register I/O
   4  *
   5  * Copyright 2005 Mentor Graphics Corporation
   6  * Copyright (C) 2005-2006 by Texas Instruments
   7  * Copyright (C) 2006-2007 Nokia Corporation
   8  */
   9
  10 #ifndef __MUSB_LINUX_PLATFORM_ARCH_H__
  11 #define __MUSB_LINUX_PLATFORM_ARCH_H__
  12
  13 #include <linux/io.h>
  14
  15 #define musb_ep_select(_mbase, _epnum)  musb->io.ep_select((_mbase), (_epnum))
  16
  17 /**
  18  * struct musb_io - IO functions for MUSB
  19  * @quirks:     platform specific flags
  20  * @ep_offset:  platform specific function to get end point offset
  21  * @ep_select:  platform specific function to select end point
  22  * @fifo_offset: platform specific function to get fifo offset
  23  * @read_fifo:  platform specific function to read fifo
  24  * @write_fifo: platform specific function to write fifo
  25  * @busctl_offset: platform specific function to get busctl offset
  26  */
  27 struct musb_io {
  28         u32     quirks;
  29         u32     (*ep_offset)(u8 epnum, u16 offset);
  30         void    (*ep_select)(void __iomem *mbase, u8 epnum);
  31         u32     (*fifo_offset)(u8 epnum);
  32         void    (*read_fifo)(struct musb_hw_ep *hw_ep, u16 len, u8 *buf);
  33         void    (*write_fifo)(struct musb_hw_ep *hw_ep, u16 len, const u8 *buf);
  34         u32     (*busctl_offset)(u8 epnum, u16 offset);
  35 };
  36
  37 /* Do not add new entries here, add them the struct musb_io instead */
  38 extern u8 (*musb_readb)(const void __iomem *addr, unsigned offset);
  39 extern void (*musb_writeb)(void __iomem *addr, unsigned offset, u8 data);
  40 extern u16 (*musb_readw)(const void __iomem *addr, unsigned offset);
  41 extern void (*musb_writew)(void __iomem *addr, unsigned offset, u16 data);
  42 extern u32 (*musb_readl)(const void __iomem *addr, unsigned offset);
  43 extern void (*musb_writel)(void __iomem *addr, unsigned offset, u32 data);
  44
  45 #endif