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Date: Tue, 22 Sep 2015 11:02:01 +0200 From: Michael Grzeschik <m.grzeschik@...gutronix.de> To: davem@...emloft.net Cc: netdev@...r.kernel.org, joe@...ches.com, kernel@...gutronix.de Subject: [PATCH 20/33] arcnet: Add arcnet_<I/O> macros From: Joe Perches <joe@...ches.com> 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@...ches.com> Signed-off-by: Michael Grzeschik <m.grzeschik@...gutronix.de> --- drivers/net/arcnet/arcdevice.h | 25 +++++++++++++++++++++++++ 1 file changed, 25 insertions(+) diff --git a/drivers/net/arcnet/arcdevice.h b/drivers/net/arcnet/arcdevice.h index 9ca135d..95e7ed6 100644 --- a/drivers/net/arcnet/arcdevice.h +++ b/drivers/net/arcnet/arcdevice.h @@ -342,5 +342,30 @@ netdev_tx_t arcnet_send_packet(struct sk_buff *skb, struct net_device *dev); void arcnet_timeout(struct net_device *dev); +/* I/O equivalents */ + +/* addr and offset allow register like names to define the actual IO address. + * A configuration option multiplies the offset for alignment. + */ +#define arcnet_inb(addr, offset) \ + inb((addr) + (offset)) +#define arcnet_outb(value, addr, offset) \ + outb(value, (addr) + (offset)) + +#define arcnet_insb(addr, offset, buffer, count) \ + insb((addr) + (offset), buffer, count) +#define arcnet_outsb(addr, offset, buffer, count) \ + outsb((addr) + (offset), buffer, count) + +#define arcnet_inw(addr, offset) \ + inw((addr) + (offset)) +#define arcnet_outw(value, addr, offset) \ + outw(value, (addr) + (offset)) + +#define arcnet_insw(addr, offset, buffer, count) \ + insw((addr) + (offset), buffer, count) +#define arcnet_outsw(addr, offset, buffer, count) \ + outsw((addr) + (offset), buffer, count) + #endif /* __KERNEL__ */ #endif /* _LINUX_ARCDEVICE_H */ -- 2.5.1 -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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