1 /*
2 * arch/arm/mach-netx/include/mach/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
pfifo_push(int no,unsigned int pointer)24 static inline int pfifo_push(int no, unsigned int pointer)
25 {
26 writel(pointer, NETX_PFIFO_BASE(no));
27 return 0;
28 }
29
pfifo_pop(int no)30 static inline unsigned int pfifo_pop(int no)
31 {
32 return readl(NETX_PFIFO_BASE(no));
33 }
34
pfifo_fill_level(int no)35 static inline int pfifo_fill_level(int no)
36 {
37
38 return readl(NETX_PFIFO_FILL_LEVEL(no));
39 }
40
pfifo_full(int no)41 static inline int pfifo_full(int no)
42 {
43 return readl(NETX_PFIFO_FULL) & (1<<no) ? 1 : 0;
44 }
45
pfifo_empty(int no)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 */
55
