kernel-ark/drivers/rapidio/rio-sysfs.c
Tim Schmielau cd354f1ae7 [PATCH] remove many unneeded #includes of sched.h
After Al Viro (finally) succeeded in removing the sched.h #include in module.h
recently, it makes sense again to remove other superfluous sched.h includes.
There are quite a lot of files which include it but don't actually need
anything defined in there.  Presumably these includes were once needed for
macros that used to live in sched.h, but moved to other header files in the
course of cleaning it up.

To ease the pain, this time I did not fiddle with any header files and only
removed #includes from .c-files, which tend to cause less trouble.

Compile tested against 2.6.20-rc2 and 2.6.20-rc2-mm2 (with offsets) on alpha,
arm, i386, ia64, mips, powerpc, and x86_64 with allnoconfig, defconfig,
allmodconfig, and allyesconfig as well as a few randconfigs on x86_64 and all
configs in arch/arm/configs on arm.  I also checked that no new warnings were
introduced by the patch (actually, some warnings are removed that were emitted
by unnecessarily included header files).

Signed-off-by: Tim Schmielau <tim@physik3.uni-rostock.de>
Acked-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-02-14 08:09:54 -08:00

230 lines
4.9 KiB
C

/*
* RapidIO sysfs attributes and support
*
* Copyright 2005 MontaVista Software, Inc.
* Matt Porter <mporter@kernel.crashing.org>
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; either version 2 of the License, or (at your
* option) any later version.
*/
#include <linux/kernel.h>
#include <linux/rio.h>
#include <linux/rio_drv.h>
#include <linux/stat.h>
#include "rio.h"
/* Sysfs support */
#define rio_config_attr(field, format_string) \
static ssize_t \
field##_show(struct device *dev, struct device_attribute *attr, char *buf) \
{ \
struct rio_dev *rdev = to_rio_dev(dev); \
\
return sprintf(buf, format_string, rdev->field); \
} \
rio_config_attr(did, "0x%04x\n");
rio_config_attr(vid, "0x%04x\n");
rio_config_attr(device_rev, "0x%08x\n");
rio_config_attr(asm_did, "0x%04x\n");
rio_config_attr(asm_vid, "0x%04x\n");
rio_config_attr(asm_rev, "0x%04x\n");
static ssize_t routes_show(struct device *dev, struct device_attribute *attr, char *buf)
{
struct rio_dev *rdev = to_rio_dev(dev);
char *str = buf;
int i;
if (!rdev->rswitch)
goto out;
for (i = 0; i < RIO_MAX_ROUTE_ENTRIES; i++) {
if (rdev->rswitch->route_table[i] == RIO_INVALID_ROUTE)
continue;
str +=
sprintf(str, "%04x %02x\n", i,
rdev->rswitch->route_table[i]);
}
out:
return (str - buf);
}
struct device_attribute rio_dev_attrs[] = {
__ATTR_RO(did),
__ATTR_RO(vid),
__ATTR_RO(device_rev),
__ATTR_RO(asm_did),
__ATTR_RO(asm_vid),
__ATTR_RO(asm_rev),
__ATTR_RO(routes),
__ATTR_NULL,
};
static ssize_t
rio_read_config(struct kobject *kobj, char *buf, loff_t off, size_t count)
{
struct rio_dev *dev =
to_rio_dev(container_of(kobj, struct device, kobj));
unsigned int size = 0x100;
loff_t init_off = off;
u8 *data = (u8 *) buf;
/* Several chips lock up trying to read undefined config space */
if (capable(CAP_SYS_ADMIN))
size = 0x200000;
if (off > size)
return 0;
if (off + count > size) {
size -= off;
count = size;
} else {
size = count;
}
if ((off & 1) && size) {
u8 val;
rio_read_config_8(dev, off, &val);
data[off - init_off] = val;
off++;
size--;
}
if ((off & 3) && size > 2) {
u16 val;
rio_read_config_16(dev, off, &val);
data[off - init_off] = (val >> 8) & 0xff;
data[off - init_off + 1] = val & 0xff;
off += 2;
size -= 2;
}
while (size > 3) {
u32 val;
rio_read_config_32(dev, off, &val);
data[off - init_off] = (val >> 24) & 0xff;
data[off - init_off + 1] = (val >> 16) & 0xff;
data[off - init_off + 2] = (val >> 8) & 0xff;
data[off - init_off + 3] = val & 0xff;
off += 4;
size -= 4;
}
if (size >= 2) {
u16 val;
rio_read_config_16(dev, off, &val);
data[off - init_off] = (val >> 8) & 0xff;
data[off - init_off + 1] = val & 0xff;
off += 2;
size -= 2;
}
if (size > 0) {
u8 val;
rio_read_config_8(dev, off, &val);
data[off - init_off] = val;
off++;
--size;
}
return count;
}
static ssize_t
rio_write_config(struct kobject *kobj, char *buf, loff_t off, size_t count)
{
struct rio_dev *dev =
to_rio_dev(container_of(kobj, struct device, kobj));
unsigned int size = count;
loff_t init_off = off;
u8 *data = (u8 *) buf;
if (off > 0x200000)
return 0;
if (off + count > 0x200000) {
size = 0x200000 - off;
count = size;
}
if ((off & 1) && size) {
rio_write_config_8(dev, off, data[off - init_off]);
off++;
size--;
}
if ((off & 3) && (size > 2)) {
u16 val = data[off - init_off + 1];
val |= (u16) data[off - init_off] << 8;
rio_write_config_16(dev, off, val);
off += 2;
size -= 2;
}
while (size > 3) {
u32 val = data[off - init_off + 3];
val |= (u32) data[off - init_off + 2] << 8;
val |= (u32) data[off - init_off + 1] << 16;
val |= (u32) data[off - init_off] << 24;
rio_write_config_32(dev, off, val);
off += 4;
size -= 4;
}
if (size >= 2) {
u16 val = data[off - init_off + 1];
val |= (u16) data[off - init_off] << 8;
rio_write_config_16(dev, off, val);
off += 2;
size -= 2;
}
if (size) {
rio_write_config_8(dev, off, data[off - init_off]);
off++;
--size;
}
return count;
}
static struct bin_attribute rio_config_attr = {
.attr = {
.name = "config",
.mode = S_IRUGO | S_IWUSR,
.owner = THIS_MODULE,
},
.size = 0x200000,
.read = rio_read_config,
.write = rio_write_config,
};
/**
* rio_create_sysfs_dev_files - create RIO specific sysfs files
* @rdev: device whose entries should be created
*
* Create files when @rdev is added to sysfs.
*/
int rio_create_sysfs_dev_files(struct rio_dev *rdev)
{
sysfs_create_bin_file(&rdev->dev.kobj, &rio_config_attr);
return 0;
}
/**
* rio_remove_sysfs_dev_files - cleanup RIO specific sysfs files
* @rdev: device whose entries we should free
*
* Cleanup when @rdev is removed from sysfs.
*/
void rio_remove_sysfs_dev_files(struct rio_dev *rdev)
{
sysfs_remove_bin_file(&rdev->dev.kobj, &rio_config_attr);
}