Felipe Balbi | 550a737 | 2008-07-24 12:27:36 +0300 | [diff] [blame] | 1 | /* |
| 2 | * MUSB OTG driver register I/O |
| 3 | * |
| 4 | * Copyright 2005 Mentor Graphics Corporation |
| 5 | * Copyright (C) 2005-2006 by Texas Instruments |
| 6 | * Copyright (C) 2006-2007 Nokia Corporation |
| 7 | * |
| 8 | * This program is free software; you can redistribute it and/or |
| 9 | * modify it under the terms of the GNU General Public License |
| 10 | * version 2 as published by the Free Software Foundation. |
| 11 | * |
| 12 | * This program is distributed in the hope that it will be useful, but |
| 13 | * WITHOUT ANY WARRANTY; without even the implied warranty of |
| 14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 15 | * General Public License for more details. |
| 16 | * |
| 17 | * You should have received a copy of the GNU General Public License |
| 18 | * along with this program; if not, write to the Free Software |
| 19 | * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA |
| 20 | * 02110-1301 USA |
| 21 | * |
| 22 | * THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED |
| 23 | * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF |
| 24 | * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN |
| 25 | * NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY DIRECT, INDIRECT, |
| 26 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
| 27 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF |
| 28 | * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON |
| 29 | * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| 30 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
| 31 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 32 | * |
| 33 | */ |
| 34 | |
| 35 | #ifndef __MUSB_LINUX_PLATFORM_ARCH_H__ |
| 36 | #define __MUSB_LINUX_PLATFORM_ARCH_H__ |
| 37 | |
| 38 | #include <linux/io.h> |
| 39 | |
Felipe Balbi | eaa3246 | 2008-09-11 11:53:19 +0300 | [diff] [blame^] | 40 | #if !defined(CONFIG_ARM) && !defined(CONFIG_SUPERH) \ |
| 41 | && !defined(CONFIG_AVR32) && !defined(CONFIG_PPC32) \ |
| 42 | && !defined(CONFIG_PPC64) |
Felipe Balbi | 550a737 | 2008-07-24 12:27:36 +0300 | [diff] [blame] | 43 | static inline void readsl(const void __iomem *addr, void *buf, int len) |
| 44 | { insl((unsigned long)addr, buf, len); } |
| 45 | static inline void readsw(const void __iomem *addr, void *buf, int len) |
| 46 | { insw((unsigned long)addr, buf, len); } |
| 47 | static inline void readsb(const void __iomem *addr, void *buf, int len) |
| 48 | { insb((unsigned long)addr, buf, len); } |
| 49 | |
| 50 | static inline void writesl(const void __iomem *addr, const void *buf, int len) |
| 51 | { outsl((unsigned long)addr, buf, len); } |
| 52 | static inline void writesw(const void __iomem *addr, const void *buf, int len) |
| 53 | { outsw((unsigned long)addr, buf, len); } |
| 54 | static inline void writesb(const void __iomem *addr, const void *buf, int len) |
| 55 | { outsb((unsigned long)addr, buf, len); } |
| 56 | |
| 57 | #endif |
| 58 | |
| 59 | /* NOTE: these offsets are all in bytes */ |
| 60 | |
| 61 | static inline u16 musb_readw(const void __iomem *addr, unsigned offset) |
| 62 | { return __raw_readw(addr + offset); } |
| 63 | |
| 64 | static inline u32 musb_readl(const void __iomem *addr, unsigned offset) |
| 65 | { return __raw_readl(addr + offset); } |
| 66 | |
| 67 | |
| 68 | static inline void musb_writew(void __iomem *addr, unsigned offset, u16 data) |
| 69 | { __raw_writew(data, addr + offset); } |
| 70 | |
| 71 | static inline void musb_writel(void __iomem *addr, unsigned offset, u32 data) |
| 72 | { __raw_writel(data, addr + offset); } |
| 73 | |
| 74 | |
| 75 | #ifdef CONFIG_USB_TUSB6010 |
| 76 | |
| 77 | /* |
| 78 | * TUSB6010 doesn't allow 8-bit access; 16-bit access is the minimum. |
| 79 | */ |
| 80 | static inline u8 musb_readb(const void __iomem *addr, unsigned offset) |
| 81 | { |
| 82 | u16 tmp; |
| 83 | u8 val; |
| 84 | |
| 85 | tmp = __raw_readw(addr + (offset & ~1)); |
| 86 | if (offset & 1) |
| 87 | val = (tmp >> 8); |
| 88 | else |
| 89 | val = tmp & 0xff; |
| 90 | |
| 91 | return val; |
| 92 | } |
| 93 | |
| 94 | static inline void musb_writeb(void __iomem *addr, unsigned offset, u8 data) |
| 95 | { |
| 96 | u16 tmp; |
| 97 | |
| 98 | tmp = __raw_readw(addr + (offset & ~1)); |
| 99 | if (offset & 1) |
| 100 | tmp = (data << 8) | (tmp & 0xff); |
| 101 | else |
| 102 | tmp = (tmp & 0xff00) | data; |
| 103 | |
| 104 | __raw_writew(tmp, addr + (offset & ~1)); |
| 105 | } |
| 106 | |
| 107 | #else |
| 108 | |
| 109 | static inline u8 musb_readb(const void __iomem *addr, unsigned offset) |
| 110 | { return __raw_readb(addr + offset); } |
| 111 | |
| 112 | static inline void musb_writeb(void __iomem *addr, unsigned offset, u8 data) |
| 113 | { __raw_writeb(data, addr + offset); } |
| 114 | |
| 115 | #endif /* CONFIG_USB_TUSB6010 */ |
| 116 | |
| 117 | #endif |