| Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame] | 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 |