C++ (Cpp) ATTRELI_ELの例

コード例 #1

ファイル: gianfar_sysfs.c プロジェクト: DavionKnight/H18CE-1604C

static ssize_t gfar_set_rx_stash_size(struct device *dev,
				      struct device_attribute *attr,
				      const char *buf, size_t count)
{
	struct gfar_private *priv = netdev_priv(to_net_dev(dev));
	struct gfar __iomem *regs = priv->gfargrp[0].regs;
	unsigned int length = simple_strtoul(buf, NULL, 0);
	u32 temp;
	unsigned long flags;

	if (!(priv->device_flags & FSL_GIANFAR_DEV_HAS_BUF_STASHING))
		return count;

	local_irq_save(flags);
	lock_rx_qs(priv);

	if (length > priv->rx_buffer_size)
		goto out;

	if (length == priv->rx_stash_size)
		goto out;

	priv->rx_stash_size = length;

	temp = gfar_read(&regs->attreli);
	temp &= ~ATTRELI_EL_MASK;
	temp |= ATTRELI_EL(length);
	gfar_write(&regs->attreli, temp);

	/* Turn stashing on/off as appropriate */
	temp = gfar_read(&regs->attr);

	if (length)
		temp |= ATTR_BUFSTASH;
	else
		temp &= ~(ATTR_BUFSTASH);

	gfar_write(&regs->attr, temp);

out:
	unlock_rx_qs(priv);
	local_irq_restore(flags);

	return count;
}

コード例 #2

static ssize_t gfar_set_rx_stash_size(struct device *dev,
				      struct device_attribute *attr,
				      const char *buf, size_t count)
{
	struct gfar_private *priv = netdev_priv(to_net_dev(dev));
	unsigned int length = simple_strtoul(buf, NULL, 0);
	u32 temp;
	unsigned long flags;

	if (!(priv->device_flags & FSL_GIANFAR_DEV_HAS_BUF_STASHING))
		return count;

	spin_lock_irqsave(&priv->rxlock, flags);
	if (length > priv->rx_buffer_size)
		goto out;

	if (length == priv->rx_stash_size)
		goto out;

	priv->rx_stash_size = length;

	temp = gfar_read(&priv->regs->attreli);
	temp &= ~ATTRELI_EL_MASK;
	temp |= ATTRELI_EL(length);
	gfar_write(&priv->regs->attreli, temp);

	
	temp = gfar_read(&priv->regs->attr);

	if (length)
		temp |= ATTR_BUFSTASH;
	else
		temp &= ~(ATTR_BUFSTASH);

	gfar_write(&priv->regs->attr, temp);

out:
	spin_unlock_irqrestore(&priv->rxlock, flags);

	return count;
}

コード例 #3

ファイル: gianfar_sysfs.c プロジェクト: artasoftkey/ptpv2d

static ssize_t gfar_set_rx_stash_size(struct class_device *cdev,
		const char *buf, size_t count)
{
	struct net_device *dev = to_net_dev(cdev);
	struct gfar_private *priv = netdev_priv(dev);
	unsigned int length = simple_strtoul(buf, NULL, 0);
	u32 temp;
	unsigned long flags;

	spin_lock_irqsave(&priv->rxlock, flags);
	if (length > priv->rx_buffer_size)
		return count;

	if (length == priv->rx_stash_size)
		return count;

	priv->rx_stash_size = length;

	temp = gfar_read(&priv->regs->attreli);
	temp &= ~ATTRELI_EL_MASK;
	temp |= ATTRELI_EL(length);
	gfar_write(&priv->regs->attreli, temp);

	/* Turn stashing on/off as appropriate */
	temp = gfar_read(&priv->regs->attr);

	if (length)
		temp |= ATTR_BUFSTASH;
	else
		temp &= ~(ATTR_BUFSTASH);

	gfar_write(&priv->regs->attr, temp);

	spin_unlock_irqrestore(&priv->rxlock, flags);

	return count;
}