netdev - [PATCH] [DM9000] Add support for big-endian hosts

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Date:	Tue, 14 Aug 2007 13:22:32 +0200
From:	Laurent Pinchart <laurentp@...-semaphore.com>
To:	netdev@...r.kernel.org
Cc:	Ben Dooks <ben-linux@...ff.org>
Subject: [PATCH] [DM9000] Add support for big-endian hosts

This patch splits the receive status in 8bit wide fields and convert the
packet length from little endian to CPU byte order.

Signed-off-by: Laurent Pinchart <laurentp@...-semaphore.com>
---
 drivers/net/dm9000.c |   13 +++++++------
 1 files changed, 7 insertions(+), 6 deletions(-)

diff --git a/drivers/net/dm9000.c b/drivers/net/dm9000.c
index 264fa0e..ee578d9 100644
--- a/drivers/net/dm9000.c
+++ b/drivers/net/dm9000.c
@@ -879,7 +879,8 @@ dm9000_timer(unsigned long data)
 }
 
 struct dm9000_rxhdr {
-	u16	RxStatus;
+	u8	RxPktReady;
+	u8	RxStatus;
 	u16	RxLen;
 } __attribute__((__packed__));
 
@@ -920,7 +921,7 @@ dm9000_rx(struct net_device *dev)
 
 		(db->inblk)(db->io_data, &rxhdr, sizeof(rxhdr));
 
-		RxLen = rxhdr.RxLen;
+		RxLen = le16_to_cpu(rxhdr.RxLen);
 
 		/* Packet Status check */
 		if (RxLen < 0x40) {
@@ -932,17 +933,17 @@ dm9000_rx(struct net_device *dev)
 			PRINTK1("RST: RX Len:%x\n", RxLen);
 		}
 
-		if (rxhdr.RxStatus & 0xbf00) {
+		if (rxhdr.RxStatus & 0xbf) {
 			GoodPacket = false;
-			if (rxhdr.RxStatus & 0x100) {
+			if (rxhdr.RxStatus & 0x01) {
 				PRINTK1("fifo error\n");
 				db->stats.rx_fifo_errors++;
 			}
-			if (rxhdr.RxStatus & 0x200) {
+			if (rxhdr.RxStatus & 0x02) {
 				PRINTK1("crc error\n");
 				db->stats.rx_crc_errors++;
 			}
-			if (rxhdr.RxStatus & 0x8000) {
+			if (rxhdr.RxStatus & 0x80) {
 				PRINTK1("length error\n");
 				db->stats.rx_length_errors++;
 			}
-- 
1.5.0


-- 
Laurent Pinchart
CSE Semaphore Belgium

Chaussée de Bruxelles, 732A
B-1410 Waterloo
Belgium

T +32 (2) 387 42 59
F +32 (2) 387 42 75
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