mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-10-31 00:17:44 +00:00
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>
54 lines
1.4 KiB
C
54 lines
1.4 KiB
C
/*
|
|
* include/asm-arm/arch-netx/pfifo.h
|
|
*
|
|
* Copyright (c) 2005 Sascha Hauer <s.hauer@pengutronix.de>, Pengutronix
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License version 2
|
|
* as published by the Free Software Foundation.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program; if not, write to the Free Software
|
|
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
|
*/
|
|
|
|
|
|
#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 */
|