forked from Minki/linux
ef70cd4d24
Patch from Sascha Hauer This patch adds support for the pointer FIFOs on netX. Signed-off-by: Robert Schwebel <r.schwebel@pengutronix.de> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
55 lines
1.4 KiB
C
55 lines
1.4 KiB
C
/*
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* include/asm-arm/arch-netx/pfifo.h
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*
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* Copyright (c) 2005 Sascha Hauer <s.hauer@pengutronix.de>, Pengutronix
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2
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* as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#ifndef ASM_ARCH_PFIFO_H
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#define ASM_ARCH_PFIFO_H
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static inline int pfifo_push(int no, unsigned int pointer)
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{
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writel(pointer, NETX_PFIFO_BASE(no));
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return 0;
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}
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static inline unsigned int pfifo_pop(int no)
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{
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return readl(NETX_PFIFO_BASE(no));
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}
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static inline int pfifo_fill_level(int no)
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{
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return readl(NETX_PFIFO_FILL_LEVEL(no));
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}
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static inline int pfifo_full(int no)
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{
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return readl(NETX_PFIFO_FULL) & (1<<no) ? 1 : 0;
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}
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static inline int pfifo_empty(int no)
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{
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return readl(NETX_PFIFO_EMPTY) & (1<<no) ? 1 : 0;
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}
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int pfifo_request(unsigned int pfifo_mask);
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void pfifo_free(unsigned int pfifo_mask);
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#endif /* ASM_ARCH_PFIFO_H */
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