90 lines
2.5 KiB
C
90 lines
2.5 KiB
C
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/*
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* ddbridge-io.h: Digital Devices bridge I/O functions
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*
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* Copyright (C) 2010-2017 Digital Devices GmbH
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* Ralph Metzler <rjkm@metzlerbros.de>
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* Marcus Metzler <mocm@metzlerbros.de>
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* version 2 only, as published by the Free Software Foundation.
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*
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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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*
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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., 51 Franklin Street, Fifth Floor, Boston, MA
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* 02110-1301, USA
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* Or, point your browser to http://www.gnu.org/copyleft/gpl.html
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*/
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#ifndef _DDBRIDGE_IO_H_
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#define _DDBRIDGE_IO_H_
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u32 ddblreadl(struct ddb_link *link, u32 adr);
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void ddblwritel(struct ddb_link *link, u32 val, u32 adr);
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u32 ddbreadl(struct ddb *dev, u32 adr);
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void ddbwritel(struct ddb *dev, u32 val, u32 adr);
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void gtlcpyto(struct ddb *dev, u32 adr, const u8 *buf,
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unsigned int count);
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void gtlcpyfrom(struct ddb *dev, u8 *buf, u32 adr, long count);
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void ddbcpyto(struct ddb *dev, u32 adr, void *src, long count);
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void ddbcpyfrom(struct ddb *dev, void *dst, u32 adr, long count);
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static inline void ddbwriteb(struct ddb *dev, u32 val, u32 adr)
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{
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writeb(val, (char *) (dev->regs + (adr)));
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}
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static inline u32 ddbreadb(struct ddb *dev, u32 adr)
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{
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return readb((char *) (dev->regs + (adr)));
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}
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static inline void ddbwritel0(struct ddb_link *link, u32 val, u32 adr)
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{
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writel(val, (char *) (link->dev->regs + (adr)));
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}
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static inline u32 ddbreadl0(struct ddb_link *link, u32 adr)
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{
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return readl((char *) (link->dev->regs + (adr)));
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}
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#if 0
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static inline void gtlw(struct ddb_link *link)
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{
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u32 count = 0;
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static u32 max;
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while (1 & ddbreadl0(link, link->regs + 0x10)) {
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if (++count == 1024) {
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pr_info("LTO\n");
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break;
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}
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}
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if (count > max) {
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max = count;
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pr_info("TO=%u\n", max);
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}
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if (ddbreadl0(link, link->regs + 0x10) & 0x8000)
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pr_err("link error\n");
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}
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#else
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static inline void gtlw(struct ddb_link *link)
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{
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while (1 & ddbreadl0(link, link->regs + 0x10))
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;
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}
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#endif
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#define ddbmemset(_dev, _adr, _val, _count) \
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memset_io((char *) (_dev->regs + (_adr)), (_val), (_count))
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#endif
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