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1 | /* |
2 | * include/asm-arm/arch-netx/pfifo.h | |
3 | * | |
4 | * Copyright (c) 2005 Sascha Hauer <s.hauer@pengutronix.de>, Pengutronix | |
5 | * | |
6 | * This program is free software; you can redistribute it and/or modify | |
7 | * it under the terms of the GNU General Public License version 2 | |
8 | * as published by the Free Software Foundation. | |
9 | * | |
10 | * This program is distributed in the hope that it will be useful, | |
11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
13 | * GNU General Public License for more details. | |
14 | * | |
15 | * You should have received a copy of the GNU General Public License | |
16 | * along with this program; if not, write to the Free Software | |
17 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
18 | */ | |
19 | ||
20 | ||
21 | #ifndef ASM_ARCH_PFIFO_H | |
22 | #define ASM_ARCH_PFIFO_H | |
23 | ||
24 | static inline int pfifo_push(int no, unsigned int pointer) | |
25 | { | |
26 | writel(pointer, NETX_PFIFO_BASE(no)); | |
27 | return 0; | |
28 | } | |
29 | ||
30 | static inline unsigned int pfifo_pop(int no) | |
31 | { | |
32 | return readl(NETX_PFIFO_BASE(no)); | |
33 | } | |
34 | ||
35 | static inline int pfifo_fill_level(int no) | |
36 | { | |
37 | ||
38 | return readl(NETX_PFIFO_FILL_LEVEL(no)); | |
39 | } | |
40 | ||
41 | static inline int pfifo_full(int no) | |
42 | { | |
43 | return readl(NETX_PFIFO_FULL) & (1<<no) ? 1 : 0; | |
44 | } | |
45 | ||
46 | static inline int pfifo_empty(int no) | |
47 | { | |
48 | return readl(NETX_PFIFO_EMPTY) & (1<<no) ? 1 : 0; | |
49 | } | |
50 | ||
51 | int pfifo_request(unsigned int pfifo_mask); | |
52 | void pfifo_free(unsigned int pfifo_mask); | |
53 | ||
54 | #endif /* ASM_ARCH_PFIFO_H */ |