LXR linux/drivers/usb/musb/musb

   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 * @ep_offset:  platform specific function to get end point offset
  20 * @ep_select:  platform specific function to select end point
  21 * @fifo_offset: platform specific function to get fifo offset
  22 * @read_fifo:  platform specific function to read fifo
  23 * @write_fifo: platform specific function to write fifo
  24 * @busctl_offset: platform specific function to get busctl offset
  25 * @get_toggle: platform specific function to get toggle
  26 * @set_toggle: platform specific function to set toggle
  27 */
  28struct musb_io {
  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        u16     (*get_toggle)(struct musb_qh *qh, int is_out);
  36        u16     (*set_toggle)(struct musb_qh *qh, int is_out, struct urb *urb);
  37};
  38
  39/* Do not add new entries here, add them the struct musb_io instead */
  40extern u8 (*musb_readb)(void __iomem *addr, u32 offset);
  41extern void (*musb_writeb)(void __iomem *addr, u32 offset, u8 data);
  42extern u8 (*musb_clearb)(void __iomem *addr, u32 offset);
  43extern u16 (*musb_readw)(void __iomem *addr, u32 offset);
  44extern void (*musb_writew)(void __iomem *addr, u32 offset, u16 data);
  45extern u16 (*musb_clearw)(void __iomem *addr, u32 offset);
  46extern u32 musb_readl(void __iomem *addr, u32 offset);
  47extern void musb_writel(void __iomem *addr, u32 offset, u32 data);
  48
  49#endif
  50