118 lines
3.8 KiB
C
118 lines
3.8 KiB
C
/*
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* MUSB OTG driver register I/O
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*
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* Copyright 2005 Mentor Graphics Corporation
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* Copyright (C) 2005-2006 by Texas Instruments
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* Copyright (C) 2006-2007 Nokia Corporation
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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 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, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* 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., 51 Franklin St, Fifth Floor, Boston, MA
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* 02110-1301 USA
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*
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* THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED
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* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
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* NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
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* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
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* ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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*/
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#ifndef __MUSB_LINUX_PLATFORM_ARCH_H__
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#define __MUSB_LINUX_PLATFORM_ARCH_H__
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#include <linux/io.h>
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#if !defined(CONFIG_ARM) && !defined(CONFIG_SUPERH) \
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&& !defined(CONFIG_AVR32) && !defined(CONFIG_PPC32) \
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&& !defined(CONFIG_PPC64)
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static inline void readsl(const void __iomem *addr, void *buf, int len)
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{ insl((unsigned long)addr, buf, len); }
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static inline void readsw(const void __iomem *addr, void *buf, int len)
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{ insw((unsigned long)addr, buf, len); }
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static inline void readsb(const void __iomem *addr, void *buf, int len)
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{ insb((unsigned long)addr, buf, len); }
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static inline void writesl(const void __iomem *addr, const void *buf, int len)
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{ outsl((unsigned long)addr, buf, len); }
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static inline void writesw(const void __iomem *addr, const void *buf, int len)
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{ outsw((unsigned long)addr, buf, len); }
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static inline void writesb(const void __iomem *addr, const void *buf, int len)
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{ outsb((unsigned long)addr, buf, len); }
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#endif
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/* NOTE: these offsets are all in bytes */
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static inline u16 musb_readw(const void __iomem *addr, unsigned offset)
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{ return __raw_readw(addr + offset); }
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static inline u32 musb_readl(const void __iomem *addr, unsigned offset)
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{ return __raw_readl(addr + offset); }
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static inline void musb_writew(void __iomem *addr, unsigned offset, u16 data)
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{ __raw_writew(data, addr + offset); }
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static inline void musb_writel(void __iomem *addr, unsigned offset, u32 data)
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{ __raw_writel(data, addr + offset); }
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#ifdef CONFIG_USB_TUSB6010
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/*
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* TUSB6010 doesn't allow 8-bit access; 16-bit access is the minimum.
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*/
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static inline u8 musb_readb(const void __iomem *addr, unsigned offset)
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{
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u16 tmp;
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u8 val;
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tmp = __raw_readw(addr + (offset & ~1));
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if (offset & 1)
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val = (tmp >> 8);
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else
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val = tmp & 0xff;
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return val;
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}
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static inline void musb_writeb(void __iomem *addr, unsigned offset, u8 data)
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{
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u16 tmp;
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tmp = __raw_readw(addr + (offset & ~1));
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if (offset & 1)
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tmp = (data << 8) | (tmp & 0xff);
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else
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tmp = (tmp & 0xff00) | data;
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__raw_writew(tmp, addr + (offset & ~1));
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}
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#else
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static inline u8 musb_readb(const void __iomem *addr, unsigned offset)
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{ return __raw_readb(addr + offset); }
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static inline void musb_writeb(void __iomem *addr, unsigned offset, u8 data)
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{ __raw_writeb(data, addr + offset); }
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#endif /* CONFIG_USB_TUSB6010 */
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#endif
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