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yaml
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r: 194314
b: refs/heads/master
c: a1aa882
h: refs/heads/master
v: v3
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Richard Röjfors authored and David S. Miller committed Apr 21, 2010
1 parent f82c277 commit 18b98bc
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Showing 3 changed files with 77 additions and 12 deletions.
2 changes: 1 addition & 1 deletion [refs]
Original file line number Diff line number Diff line change
@@ -1,2 +1,2 @@
---
refs/heads/master: 6846ad282693bd066645aff6f13d2b279d505314
refs/heads/master: a1aa8822d577c8714f8d343eea028befbab3da9d
53 changes: 42 additions & 11 deletions trunk/drivers/net/ks8842.c
Original file line number Diff line number Diff line change
@@ -1,5 +1,5 @@
/*
* ks8842_main.c timberdale KS8842 ethernet driver
* ks8842.c timberdale KS8842 ethernet driver
* Copyright (c) 2009 Intel Corporation
*
* This program is free software; you can redistribute it and/or modify
Expand Down Expand Up @@ -28,6 +28,7 @@
#include <linux/netdevice.h>
#include <linux/etherdevice.h>
#include <linux/ethtool.h>
#include <linux/ks8842.h>

#define DRV_NAME "ks8842"

Expand Down Expand Up @@ -304,6 +305,20 @@ static void ks8842_read_mac_addr(struct ks8842_adapter *adapter, u8 *dest)
ks8842_write16(adapter, 39, mac, REG_MACAR3);
}

static void ks8842_write_mac_addr(struct ks8842_adapter *adapter, u8 *mac)
{
unsigned long flags;
unsigned i;

spin_lock_irqsave(&adapter->lock, flags);
for (i = 0; i < ETH_ALEN; i++) {
ks8842_write8(adapter, 2, mac[ETH_ALEN - i - 1], REG_MARL + i);
ks8842_write8(adapter, 39, mac[ETH_ALEN - i - 1],
REG_MACAR1 + i);
}
spin_unlock_irqrestore(&adapter->lock, flags);
}

static inline u16 ks8842_tx_fifo_space(struct ks8842_adapter *adapter)
{
return ks8842_read16(adapter, 16, REG_TXMIR) & 0x1fff;
Expand Down Expand Up @@ -522,6 +537,8 @@ static int ks8842_open(struct net_device *netdev)
/* reset the HW */
ks8842_reset_hw(adapter);

ks8842_write_mac_addr(adapter, netdev->dev_addr);

ks8842_update_link_status(netdev, adapter);

err = request_irq(adapter->irq, ks8842_irq, IRQF_SHARED, DRV_NAME,
Expand Down Expand Up @@ -568,10 +585,8 @@ static netdev_tx_t ks8842_xmit_frame(struct sk_buff *skb,
static int ks8842_set_mac(struct net_device *netdev, void *p)
{
struct ks8842_adapter *adapter = netdev_priv(netdev);
unsigned long flags;
struct sockaddr *addr = p;
char *mac = (u8 *)addr->sa_data;
int i;

dev_dbg(&adapter->pdev->dev, "%s: entry\n", __func__);

Expand All @@ -580,13 +595,7 @@ static int ks8842_set_mac(struct net_device *netdev, void *p)

memcpy(netdev->dev_addr, mac, netdev->addr_len);

spin_lock_irqsave(&adapter->lock, flags);
for (i = 0; i < ETH_ALEN; i++) {
ks8842_write8(adapter, 2, mac[ETH_ALEN - i - 1], REG_MARL + i);
ks8842_write8(adapter, 39, mac[ETH_ALEN - i - 1],
REG_MACAR1 + i);
}
spin_unlock_irqrestore(&adapter->lock, flags);
ks8842_write_mac_addr(adapter, mac);
return 0;
}

Expand All @@ -605,6 +614,8 @@ static void ks8842_tx_timeout(struct net_device *netdev)

ks8842_reset_hw(adapter);

ks8842_write_mac_addr(adapter, netdev->dev_addr);

ks8842_update_link_status(netdev, adapter);
}

Expand All @@ -627,7 +638,9 @@ static int __devinit ks8842_probe(struct platform_device *pdev)
struct resource *iomem;
struct net_device *netdev;
struct ks8842_adapter *adapter;
struct ks8842_platform_data *pdata = pdev->dev.platform_data;
u16 id;
unsigned i;

iomem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
if (!request_mem_region(iomem->start, resource_size(iomem), DRV_NAME))
Expand Down Expand Up @@ -658,7 +671,25 @@ static int __devinit ks8842_probe(struct platform_device *pdev)
netdev->netdev_ops = &ks8842_netdev_ops;
netdev->ethtool_ops = &ks8842_ethtool_ops;

ks8842_read_mac_addr(adapter, netdev->dev_addr);
/* Check if a mac address was given */
i = netdev->addr_len;
if (pdata) {
for (i = 0; i < netdev->addr_len; i++)
if (pdata->macaddr[i] != 0)
break;

if (i < netdev->addr_len)
/* an address was passed, use it */
memcpy(netdev->dev_addr, pdata->macaddr,
netdev->addr_len);
}

if (i == netdev->addr_len) {
ks8842_read_mac_addr(adapter, netdev->dev_addr);

if (!is_valid_ether_addr(netdev->dev_addr))
random_ether_addr(netdev->dev_addr);
}

id = ks8842_read16(adapter, 32, REG_SW_ID_AND_ENABLE);

Expand Down
34 changes: 34 additions & 0 deletions trunk/include/linux/ks8842.h
Original file line number Diff line number Diff line change
@@ -0,0 +1,34 @@
/*
* ks8842.h KS8842 platform data struct definition
* Copyright (c) 2010 Intel Corporation
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/

#ifndef _LINUX_KS8842_H
#define _LINUX_KS8842_H

#include <linux/if_ether.h>

/**
* struct ks8842_platform_data - Platform data of the KS8842 network driver
* @macaddr: The MAC address of the device, set to all 0:s to use the on in
* the chip.
*
*/
struct ks8842_platform_data {
u8 macaddr[ETH_ALEN];
};

#endif

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