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 */ 26 struct musb_io { 27 u32 (*ep_offset)(u8 epnum, u16 offset); 28 void (*ep_select)(void __iomem *mbase, u8 epnum); 29 u32 (*fifo_offset)(u8 epnum); 30 void (*read_fifo)(struct musb_hw_ep *hw_ep, u16 len, u8 *buf); 31 void (*write_fifo)(struct musb_hw_ep *hw_ep, u16 len, const u8 *buf); 32 u32 (*busctl_offset)(u8 epnum, u16 offset); 33 }; 34 35 /* Do not add new entries here, add them the struct musb_io instead */ 36 extern u8 (*musb_readb)(const void __iomem *addr, unsigned offset); 37 extern void (*musb_writeb)(void __iomem *addr, unsigned offset, u8 data); 38 extern u16 (*musb_readw)(const void __iomem *addr, unsigned offset); 39 extern void (*musb_writew)(void __iomem *addr, unsigned offset, u16 data); 40 extern u32 musb_readl(const void __iomem *addr, unsigned offset); 41 extern void musb_writel(void __iomem *addr, unsigned offset, u32 data); 42 43 #endif 44