99 lines
2.5 KiB
C
99 lines
2.5 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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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, point your browser to
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* 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 ddbwriteb0(struct ddb *dev, u32 val, u32 adr)
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{
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writeb(val, dev->regs + adr);
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}
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static inline u32 ddbreadb0(struct ddb *dev, u32 adr)
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{
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return readb(dev->regs + adr);
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}
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static inline void ddbwritel0(struct ddb *dev, u32 val, u32 adr)
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{
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writel(val, dev->regs + adr);
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}
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static inline u32 ddbreadl0(struct ddb *dev, u32 adr)
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{
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return readl(dev->regs + adr);
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}
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static inline void ddblwritel0(struct ddb_link *link, u32 val, u32 adr)
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{
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writel(val, link->dev->regs + adr);
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}
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static inline u32 ddblreadl0(struct ddb_link *link, u32 adr)
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{
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return readl(link->dev->regs + adr);
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}
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#ifdef DEBUG_GTLW
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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 & ddblreadl0(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 (ddblreadl0(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 & ddblreadl0(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(((_dev)->regs + (_adr)), (_val), (_count))
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#endif
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