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bcb63314e2
Drop the FSF's postal address from the source code files that typically
contain mostly the license text. Of the 628 removed instances, 578 are
outdated.
The patch has been created with the following command without manual edits:
git grep -l "675 Mass Ave\|59 Temple Place\|51 Franklin St" -- \
drivers/media/ include/media|while read i; do i=$i perl -e '
open(F,"< $ENV{i}");
$a=join("", <F>);
$a =~ s/[ \t]*\*\n.*You should.*\n.*along with.*\n.*(\n.*USA.*$)?\n//m
&& $a =~ s/(^.*)Or, (point your browser to) /$1To obtain the license, $2\n$1/m;
close(F);
open(F, "> $ENV{i}");
print F $a;
close(F);'; done
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
187 lines
4.6 KiB
C
187 lines
4.6 KiB
C
/*
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* cx18 driver PCI memory mapped IO access routines
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*
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* Copyright (C) 2007 Hans Verkuil <hverkuil@xs4all.nl>
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* Copyright (C) 2008 Andy Walls <awalls@md.metrocast.net>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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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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#ifndef CX18_IO_H
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#define CX18_IO_H
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#include "cx18-driver.h"
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/*
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* Readback and retry of MMIO access for reliability:
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* The concept was suggested by Steve Toth <stoth@linuxtv.org>.
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* The implmentation is the fault of Andy Walls <awalls@md.metrocast.net>.
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*
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* *write* functions are implied to retry the mmio unless suffixed with _noretry
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* *read* functions never retry the mmio (it never helps to do so)
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*/
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/* Non byteswapping memory mapped IO */
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static inline u32 cx18_raw_readl(struct cx18 *cx, const void __iomem *addr)
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{
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return __raw_readl(addr);
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}
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static inline
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void cx18_raw_writel_noretry(struct cx18 *cx, u32 val, void __iomem *addr)
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{
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__raw_writel(val, addr);
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}
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static inline void cx18_raw_writel(struct cx18 *cx, u32 val, void __iomem *addr)
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{
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int i;
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for (i = 0; i < CX18_MAX_MMIO_WR_RETRIES; i++) {
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cx18_raw_writel_noretry(cx, val, addr);
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if (val == cx18_raw_readl(cx, addr))
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break;
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}
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}
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/* Normal memory mapped IO */
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static inline u32 cx18_readl(struct cx18 *cx, const void __iomem *addr)
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{
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return readl(addr);
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}
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static inline
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void cx18_writel_noretry(struct cx18 *cx, u32 val, void __iomem *addr)
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{
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writel(val, addr);
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}
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static inline void cx18_writel(struct cx18 *cx, u32 val, void __iomem *addr)
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{
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int i;
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for (i = 0; i < CX18_MAX_MMIO_WR_RETRIES; i++) {
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cx18_writel_noretry(cx, val, addr);
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if (val == cx18_readl(cx, addr))
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break;
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}
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}
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static inline
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void cx18_writel_expect(struct cx18 *cx, u32 val, void __iomem *addr,
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u32 eval, u32 mask)
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{
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int i;
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u32 r;
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eval &= mask;
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for (i = 0; i < CX18_MAX_MMIO_WR_RETRIES; i++) {
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cx18_writel_noretry(cx, val, addr);
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r = cx18_readl(cx, addr);
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if (r == 0xffffffff && eval != 0xffffffff)
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continue;
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if (eval == (r & mask))
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break;
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}
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}
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static inline u16 cx18_readw(struct cx18 *cx, const void __iomem *addr)
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{
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return readw(addr);
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}
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static inline
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void cx18_writew_noretry(struct cx18 *cx, u16 val, void __iomem *addr)
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{
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writew(val, addr);
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}
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static inline void cx18_writew(struct cx18 *cx, u16 val, void __iomem *addr)
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{
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int i;
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for (i = 0; i < CX18_MAX_MMIO_WR_RETRIES; i++) {
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cx18_writew_noretry(cx, val, addr);
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if (val == cx18_readw(cx, addr))
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break;
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}
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}
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static inline u8 cx18_readb(struct cx18 *cx, const void __iomem *addr)
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{
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return readb(addr);
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}
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static inline
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void cx18_writeb_noretry(struct cx18 *cx, u8 val, void __iomem *addr)
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{
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writeb(val, addr);
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}
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static inline void cx18_writeb(struct cx18 *cx, u8 val, void __iomem *addr)
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{
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int i;
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for (i = 0; i < CX18_MAX_MMIO_WR_RETRIES; i++) {
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cx18_writeb_noretry(cx, val, addr);
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if (val == cx18_readb(cx, addr))
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break;
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}
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}
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static inline
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void cx18_memcpy_fromio(struct cx18 *cx, void *to,
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const void __iomem *from, unsigned int len)
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{
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memcpy_fromio(to, from, len);
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}
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void cx18_memset_io(struct cx18 *cx, void __iomem *addr, int val, size_t count);
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/* Access "register" region of CX23418 memory mapped I/O */
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static inline void cx18_write_reg_noretry(struct cx18 *cx, u32 val, u32 reg)
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{
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cx18_writel_noretry(cx, val, cx->reg_mem + reg);
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}
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static inline void cx18_write_reg(struct cx18 *cx, u32 val, u32 reg)
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{
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cx18_writel(cx, val, cx->reg_mem + reg);
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}
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static inline void cx18_write_reg_expect(struct cx18 *cx, u32 val, u32 reg,
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u32 eval, u32 mask)
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{
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cx18_writel_expect(cx, val, cx->reg_mem + reg, eval, mask);
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}
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static inline u32 cx18_read_reg(struct cx18 *cx, u32 reg)
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{
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return cx18_readl(cx, cx->reg_mem + reg);
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}
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/* Access "encoder memory" region of CX23418 memory mapped I/O */
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static inline void cx18_write_enc(struct cx18 *cx, u32 val, u32 addr)
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{
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cx18_writel(cx, val, cx->enc_mem + addr);
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}
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static inline u32 cx18_read_enc(struct cx18 *cx, u32 addr)
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{
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return cx18_readl(cx, cx->enc_mem + addr);
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}
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void cx18_sw1_irq_enable(struct cx18 *cx, u32 val);
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void cx18_sw1_irq_disable(struct cx18 *cx, u32 val);
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void cx18_sw2_irq_enable(struct cx18 *cx, u32 val);
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void cx18_sw2_irq_disable(struct cx18 *cx, u32 val);
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void cx18_sw2_irq_disable_cpu(struct cx18 *cx, u32 val);
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void cx18_setup_page(struct cx18 *cx, u32 addr);
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#endif /* CX18_IO_H */
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