summaryrefslogtreecommitdiff
path: root/arch/arm/mach-netx/include/mach/pfifo.h
blob: de23180bc93704d6fda936d70d8425f4b68c2313 (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
/* SPDX-License-Identifier: GPL-2.0-only */
/*
 * arch/arm/mach-netx/include/mach/pfifo.h
 *
 * Copyright (c) 2005 Sascha Hauer <s.hauer@pengutronix.de>, Pengutronix
 */


#ifndef ASM_ARCH_PFIFO_H
#define ASM_ARCH_PFIFO_H

static inline int pfifo_push(int no, unsigned int pointer)
{
	writel(pointer, NETX_PFIFO_BASE(no));
	return 0;
}

static inline unsigned int pfifo_pop(int no)
{
	return readl(NETX_PFIFO_BASE(no));
}

static inline int pfifo_fill_level(int no)
{

	return readl(NETX_PFIFO_FILL_LEVEL(no));
}

static inline int pfifo_full(int no)
{
	return readl(NETX_PFIFO_FULL) & (1<<no) ? 1 : 0;
}

static inline int pfifo_empty(int no)
{
	return readl(NETX_PFIFO_EMPTY) & (1<<no) ? 1 : 0;
}

int pfifo_request(unsigned int pfifo_mask);
void pfifo_free(unsigned int pfifo_mask);

#endif /* ASM_ARCH_PFIFO_H */