*
* sysfs interface for SH DMA API
*
- * Copyright (C) 2004, 2005 Paul Mundt
+ * Copyright (C) 2004 - 2006 Paul Mundt
*
* This file is subject to the terms and conditions of the GNU General Public
* License. See the file "COPYING" in the main directory of this archive
#include <asm/dma.h>
static struct sysdev_class dma_sysclass = {
- set_kset_name("dma"),
+ .name = "dma",
};
-
EXPORT_SYMBOL(dma_sysclass);
-static ssize_t dma_show_devices(struct sys_device *dev, char *buf)
+static ssize_t dma_show_devices(struct sys_device *dev,
+ struct sysdev_attribute *attr, char *buf)
{
ssize_t len = 0;
int i;
for (i = 0; i < MAX_DMA_CHANNELS; i++) {
struct dma_info *info = get_dma_info(i);
- struct dma_channel *channel = &info->channels[i];
+ struct dma_channel *channel = get_dma_channel(i);
+
+ if (unlikely(!info) || !channel)
+ continue;
len += sprintf(buf + len, "%2d: %14s %s\n",
channel->chan, info->name,
int ret;
ret = sysdev_class_register(&dma_sysclass);
- if (ret == 0)
- sysfs_create_file(&dma_sysclass.kset.kobj, &attr_devices.attr);
+ if (unlikely(ret))
+ return ret;
- return ret;
+ return sysfs_create_file(&dma_sysclass.kset.kobj, &attr_devices.attr);
}
-
postcore_initcall(dma_sysclass_init);
-static ssize_t dma_show_dev_id(struct sys_device *dev, char *buf)
+static ssize_t dma_show_dev_id(struct sys_device *dev,
+ struct sysdev_attribute *attr, char *buf)
{
struct dma_channel *channel = to_dma_channel(dev);
return sprintf(buf, "%s\n", channel->dev_id);
}
static ssize_t dma_store_dev_id(struct sys_device *dev,
+ struct sysdev_attribute *attr,
const char *buf, size_t count)
{
struct dma_channel *channel = to_dma_channel(dev);
static SYSDEV_ATTR(dev_id, S_IRUGO | S_IWUSR, dma_show_dev_id, dma_store_dev_id);
static ssize_t dma_store_config(struct sys_device *dev,
+ struct sysdev_attribute *attr,
const char *buf, size_t count)
{
struct dma_channel *channel = to_dma_channel(dev);
static SYSDEV_ATTR(config, S_IWUSR, NULL, dma_store_config);
-static ssize_t dma_show_mode(struct sys_device *dev, char *buf)
+static ssize_t dma_show_mode(struct sys_device *dev,
+ struct sysdev_attribute *attr, char *buf)
{
struct dma_channel *channel = to_dma_channel(dev);
return sprintf(buf, "0x%08x\n", channel->mode);
}
static ssize_t dma_store_mode(struct sys_device *dev,
+ struct sysdev_attribute *attr,
const char *buf, size_t count)
{
struct dma_channel *channel = to_dma_channel(dev);
static SYSDEV_ATTR(mode, S_IRUGO | S_IWUSR, dma_show_mode, dma_store_mode);
#define dma_ro_attr(field, fmt) \
-static ssize_t dma_show_##field(struct sys_device *dev, char *buf) \
+static ssize_t dma_show_##field(struct sys_device *dev, \
+ struct sysdev_attribute *attr, char *buf)\
{ \
struct dma_channel *channel = to_dma_channel(dev); \
return sprintf(buf, fmt, channel->field); \
if (ret)
return ret;
- sysdev_create_file(dev, &attr_dev_id);
- sysdev_create_file(dev, &attr_count);
- sysdev_create_file(dev, &attr_mode);
- sysdev_create_file(dev, &attr_flags);
- sysdev_create_file(dev, &attr_config);
+ ret |= sysdev_create_file(dev, &attr_dev_id);
+ ret |= sysdev_create_file(dev, &attr_count);
+ ret |= sysdev_create_file(dev, &attr_mode);
+ ret |= sysdev_create_file(dev, &attr_flags);
+ ret |= sysdev_create_file(dev, &attr_config);
+
+ if (unlikely(ret)) {
+ dev_err(&info->pdev->dev, "Failed creating attrs\n");
+ return ret;
+ }
snprintf(name, sizeof(name), "dma%d", chan->chan);
return sysfs_create_link(&info->pdev->dev.kobj, &dev->kobj, name);
sysdev_unregister(dev);
}
-