| Russell King | a09e64f | 2008-08-05 16:14:15 +0100 | [diff] [blame] | 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 | |
| 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 */ |