xref: /rk3399_rockchip-uboot/include/usb/lin_gadget_compat.h (revision 643aae1406c93ddc64fcf8c136b47cdffd9c8ccd)
1 /*
2  * Copyright (c) 2011 Samsung Electronics
3  * Lukasz Majewski <l.majewski@samsung.com>
4  *
5  * This is a Linux kernel compatibility layer for USB Gadget
6  *
7  * SPDX-License-Identifier:	GPL-2.0+
8  */
9 
10 #ifndef __LIN_COMPAT_H__
11 #define __LIN_COMPAT_H__
12 
13 #include <linux/compat.h>
14 
15 /* common */
16 #define spin_lock_init(...)
17 #define spin_lock(...)
18 #define spin_lock_irqsave(lock, flags) do { debug("%lu\n", flags); } while (0)
19 #define spin_unlock(...)
20 #define spin_unlock_irqrestore(lock, flags) do {flags = 0; } while (0)
21 #define disable_irq(...)
22 #define enable_irq(...)
23 
24 #define mutex_init(...)
25 #define mutex_lock(...)
26 #define mutex_unlock(...)
27 
28 #define GFP_KERNEL	0
29 
30 #define IRQ_HANDLED	1
31 
32 #define ENOTSUPP	524	/* Operation is not supported */
33 
34 #define BITS_PER_BYTE				8
35 #define BITS_TO_LONGS(nr) \
36 	DIV_ROUND_UP(nr, BITS_PER_BYTE * sizeof(long))
37 #define DECLARE_BITMAP(name, bits) \
38 	unsigned long name[BITS_TO_LONGS(bits)]
39 
40 #define small_const_nbits(nbits) \
41 	(__builtin_constant_p(nbits) && (nbits) <= BITS_PER_LONG)
42 
43 static inline void bitmap_zero(unsigned long *dst, int nbits)
44 {
45 	if (small_const_nbits(nbits))
46 		*dst = 0UL;
47 	else {
48 		int len = BITS_TO_LONGS(nbits) * sizeof(unsigned long);
49 		memset(dst, 0, len);
50 	}
51 }
52 
53 #define dma_cache_maint(addr, size, mode) cache_flush()
54 void cache_flush(void);
55 
56 #endif /* __LIN_COMPAT_H__ */
57