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
50