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path: root/drivers/net/mipsnet.c
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Diffstat (limited to 'drivers/net/mipsnet.c')
-rw-r--r--drivers/net/mipsnet.c63
1 files changed, 31 insertions, 32 deletions
diff --git a/drivers/net/mipsnet.c b/drivers/net/mipsnet.c
index d593175ab6f..37707a0c049 100644
--- a/drivers/net/mipsnet.c
+++ b/drivers/net/mipsnet.c
@@ -7,12 +7,12 @@
#define DEBUG
#include <linux/init.h>
+#include <linux/io.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/netdevice.h>
#include <linux/etherdevice.h>
#include <linux/platform_device.h>
-#include <asm/io.h>
#include <asm/mips-boards/simint.h>
#include "mipsnet.h" /* actual device IO mapping */
@@ -33,9 +33,8 @@ static int ioiocpy_frommipsnet(struct net_device *dev, unsigned char *kdata,
if (available_len < len)
return -EFAULT;
- for (; len > 0; len--, kdata++) {
+ for (; len > 0; len--, kdata++)
*kdata = inb(mipsnet_reg_address(dev, rxDataBuffer));
- }
return inl(mipsnet_reg_address(dev, rxDataCount));
}
@@ -47,16 +46,15 @@ static inline ssize_t mipsnet_put_todevice(struct net_device *dev,
char *buf_ptr = skb->data;
pr_debug("%s: %s(): telling MIPSNET txDataCount(%d)\n",
- dev->name, __FUNCTION__, skb->len);
+ dev->name, __FUNCTION__, skb->len);
outl(skb->len, mipsnet_reg_address(dev, txDataCount));
pr_debug("%s: %s(): sending data to MIPSNET txDataBuffer(%d)\n",
- dev->name, __FUNCTION__, skb->len);
+ dev->name, __FUNCTION__, skb->len);
- for (; count_to_go; buf_ptr++, count_to_go--) {
+ for (; count_to_go; buf_ptr++, count_to_go--)
outb(*buf_ptr, mipsnet_reg_address(dev, txDataBuffer));
- }
dev->stats.tx_packets++;
dev->stats.tx_bytes += skb->len;
@@ -67,7 +65,7 @@ static inline ssize_t mipsnet_put_todevice(struct net_device *dev,
static int mipsnet_xmit(struct sk_buff *skb, struct net_device *dev)
{
pr_debug("%s:%s(): transmitting %d bytes\n",
- dev->name, __FUNCTION__, skb->len);
+ dev->name, __FUNCTION__, skb->len);
/* Only one packet at a time. Once TXDONE interrupt is serviced, the
* queue will be restarted.
@@ -83,7 +81,8 @@ static inline ssize_t mipsnet_get_fromdev(struct net_device *dev, size_t count)
struct sk_buff *skb;
size_t len = count;
- if (!(skb = alloc_skb(len + 2, GFP_KERNEL))) {
+ skb = alloc_skb(len + 2, GFP_KERNEL);
+ if (!skb) {
dev->stats.rx_dropped++;
return -ENOMEM;
}
@@ -96,7 +95,7 @@ static inline ssize_t mipsnet_get_fromdev(struct net_device *dev, size_t count)
skb->ip_summed = CHECKSUM_UNNECESSARY;
pr_debug("%s:%s(): pushing RXed data to kernel\n",
- dev->name, __FUNCTION__);
+ dev->name, __FUNCTION__);
netif_rx(skb);
dev->stats.rx_packets++;
@@ -114,42 +113,44 @@ static irqreturn_t mipsnet_interrupt(int irq, void *dev_id)
if (irq == dev->irq) {
pr_debug("%s:%s(): irq %d for device\n",
- dev->name, __FUNCTION__, irq);
+ dev->name, __FUNCTION__, irq);
retval = IRQ_HANDLED;
interruptFlags =
inl(mipsnet_reg_address(dev, interruptControl));
pr_debug("%s:%s(): intCtl=0x%016llx\n", dev->name,
- __FUNCTION__, interruptFlags);
+ __FUNCTION__, interruptFlags);
if (interruptFlags & MIPSNET_INTCTL_TXDONE) {
pr_debug("%s:%s(): got TXDone\n",
- dev->name, __FUNCTION__);
+ dev->name, __FUNCTION__);
outl(MIPSNET_INTCTL_TXDONE,
mipsnet_reg_address(dev, interruptControl));
- // only one packet at a time, we are done.
+ /* only one packet at a time, we are done. */
netif_wake_queue(dev);
} else if (interruptFlags & MIPSNET_INTCTL_RXDONE) {
pr_debug("%s:%s(): got RX data\n",
- dev->name, __FUNCTION__);
+ dev->name, __FUNCTION__);
mipsnet_get_fromdev(dev,
- inl(mipsnet_reg_address(dev, rxDataCount)));
+ inl(mipsnet_reg_address(dev, rxDataCount)));
pr_debug("%s:%s(): clearing RX int\n",
- dev->name, __FUNCTION__);
+ dev->name, __FUNCTION__);
outl(MIPSNET_INTCTL_RXDONE,
mipsnet_reg_address(dev, interruptControl));
} else if (interruptFlags & MIPSNET_INTCTL_TESTBIT) {
pr_debug("%s:%s(): got test interrupt\n",
- dev->name, __FUNCTION__);
- // TESTBIT is cleared on read.
- // And takes effect after a write with 0
+ dev->name, __FUNCTION__);
+ /*
+ * TESTBIT is cleared on read.
+ * And takes effect after a write with 0
+ */
outl(0, mipsnet_reg_address(dev, interruptControl));
} else {
pr_debug("%s:%s(): no valid fags 0x%016llx\n",
- dev->name, __FUNCTION__, interruptFlags);
- // Maybe shared IRQ, just ignore, no clearing.
+ dev->name, __FUNCTION__, interruptFlags);
+ /* Maybe shared IRQ, just ignore, no clearing. */
retval = IRQ_NONE;
}
@@ -159,7 +160,7 @@ static irqreturn_t mipsnet_interrupt(int irq, void *dev_id)
retval = IRQ_NONE;
}
return retval;
-} //mipsnet_interrupt()
+}
static int mipsnet_open(struct net_device *dev)
{
@@ -171,18 +172,18 @@ static int mipsnet_open(struct net_device *dev)
if (err) {
pr_debug("%s: %s(): can't get irq %d\n",
- dev->name, __FUNCTION__, dev->irq);
+ dev->name, __FUNCTION__, dev->irq);
release_region(dev->base_addr, MIPSNET_IO_EXTENT);
return err;
}
pr_debug("%s: %s(): got IO region at 0x%04lx and irq %d for dev.\n",
- dev->name, __FUNCTION__, dev->base_addr, dev->irq);
+ dev->name, __FUNCTION__, dev->base_addr, dev->irq);
netif_start_queue(dev);
- // test interrupt handler
+ /* test interrupt handler */
outl(MIPSNET_INTCTL_TESTBIT,
mipsnet_reg_address(dev, interruptControl));
@@ -199,8 +200,6 @@ static int mipsnet_close(struct net_device *dev)
static void mipsnet_set_mclist(struct net_device *dev)
{
- // we don't do anything
- return;
}
static int __init mipsnet_probe(struct device *dev)
@@ -226,13 +225,13 @@ static int __init mipsnet_probe(struct device *dev)
*/
netdev->base_addr = 0x4200;
netdev->irq = MIPS_CPU_IRQ_BASE + MIPSCPU_INT_MB0 +
- inl(mipsnet_reg_address(netdev, interruptInfo));
+ inl(mipsnet_reg_address(netdev, interruptInfo));
- // Get the io region now, get irq on open()
+ /* Get the io region now, get irq on open() */
if (!request_region(netdev->base_addr, MIPSNET_IO_EXTENT, "mipsnet")) {
pr_debug("%s: %s(): IO region {start: 0x%04lux, len: %d} "
- "for dev is not availble.\n", netdev->name,
- __FUNCTION__, netdev->base_addr, MIPSNET_IO_EXTENT);
+ "for dev is not availble.\n", netdev->name,
+ __FUNCTION__, netdev->base_addr, MIPSNET_IO_EXTENT);
err = -EBUSY;
goto out_free_netdev;
}
generated by cgit v1.2.3 (git 2.25.1) at 2024-05-11 08:07:40 +0000