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  * @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  */
  28 struct 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 */
  40 extern u8 (*musb_readb)(void __iomem *addr, u32 offset);
  41 extern void (*musb_writeb)(void __iomem *addr, u32 offset, u8 data);
  42 extern u8 (*musb_clearb)(void __iomem *addr, u32 offset);
  43 extern u16 (*musb_readw)(void __iomem *addr, u32 offset);
  44 extern void (*musb_writew)(void __iomem *addr, u32 offset, u16 data);
  45 extern u16 (*musb_clearw)(void __iomem *addr, u32 offset);
  46 extern u32 musb_readl(void __iomem *addr, u32 offset);
  47 extern void musb_writel(void __iomem *addr, u32 offset, u32 data);
  48
  49 #endif