arcnet: Add arcnet_<I/O> macros
arcnet uses an I/O scheme which can align I/O addresses to word boundaries on different architectures. Add arcnet specific macros which can hide this alignment calculation. Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: Michael Grzeschik <m.grzeschik@pengutronix.de>
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@ -342,5 +342,30 @@ netdev_tx_t arcnet_send_packet(struct sk_buff *skb,
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struct net_device *dev);
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void arcnet_timeout(struct net_device *dev);
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/* I/O equivalents */
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/* addr and offset allow register like names to define the actual IO address.
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* A configuration option multiplies the offset for alignment.
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*/
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#define arcnet_inb(addr, offset) \
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inb((addr) + (offset))
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#define arcnet_outb(value, addr, offset) \
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outb(value, (addr) + (offset))
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#define arcnet_insb(addr, offset, buffer, count) \
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insb((addr) + (offset), buffer, count)
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#define arcnet_outsb(addr, offset, buffer, count) \
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outsb((addr) + (offset), buffer, count)
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#define arcnet_inw(addr, offset) \
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inw((addr) + (offset))
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#define arcnet_outw(value, addr, offset) \
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outw(value, (addr) + (offset))
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#define arcnet_insw(addr, offset, buffer, count) \
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insw((addr) + (offset), buffer, count)
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#define arcnet_outsw(addr, offset, buffer, count) \
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outsw((addr) + (offset), buffer, count)
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#endif /* __KERNEL__ */
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#endif /* _LINUX_ARCDEVICE_H */
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