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path: root/drivers/net/wan/sealevel.c
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Diffstat (limited to 'drivers/net/wan/sealevel.c')
-rw-r--r--drivers/net/wan/sealevel.c126
1 files changed, 47 insertions, 79 deletions
diff --git a/drivers/net/wan/sealevel.c b/drivers/net/wan/sealevel.c
index 7dddc9dcbe23..4403e219ca03 100644
--- a/drivers/net/wan/sealevel.c
+++ b/drivers/net/wan/sealevel.c
@@ -1,6 +1,5 @@
// SPDX-License-Identifier: GPL-2.0-or-later
-/*
- * Sealevel Systems 4021 driver.
+/* Sealevel Systems 4021 driver.
*
* (c) Copyright 1999, 2001 Alan Cox
* (c) Copyright 2001 Red Hat Inc.
@@ -29,32 +28,25 @@
#include <asm/byteorder.h>
#include "z85230.h"
-
-struct slvl_device
-{
+struct slvl_device {
struct z8530_channel *chan;
int channel;
};
-
-struct slvl_board
-{
+struct slvl_board {
struct slvl_device dev[2];
struct z8530_dev board;
int iobase;
};
-/*
- * Network driver support routines
- */
+ /* Network driver support routines */
-static inline struct slvl_device* dev_to_chan(struct net_device *dev)
+static inline struct slvl_device *dev_to_chan(struct net_device *dev)
{
return (struct slvl_device *)dev_to_hdlc(dev)->priv;
}
-/*
- * Frame receive. Simple for our card as we do HDLC and there
+/* Frame receive. Simple for our card as we do HDLC and there
* is no funny garbage involved
*/
@@ -68,9 +60,7 @@ static void sealevel_input(struct z8530_channel *c, struct sk_buff *skb)
netif_rx(skb);
}
-/*
- * We've been placed in the UP state
- */
+ /* We've been placed in the UP state */
static int sealevel_open(struct net_device *d)
{
@@ -78,17 +68,15 @@ static int sealevel_open(struct net_device *d)
int err = -1;
int unit = slvl->channel;
- /*
- * Link layer up.
- */
+ /* Link layer up. */
switch (unit) {
- case 0:
- err = z8530_sync_dma_open(d, slvl->chan);
- break;
- case 1:
- err = z8530_sync_open(d, slvl->chan);
- break;
+ case 0:
+ err = z8530_sync_dma_open(d, slvl->chan);
+ break;
+ case 1:
+ err = z8530_sync_open(d, slvl->chan);
+ break;
}
if (err)
@@ -97,21 +85,18 @@ static int sealevel_open(struct net_device *d)
err = hdlc_open(d);
if (err) {
switch (unit) {
- case 0:
- z8530_sync_dma_close(d, slvl->chan);
- break;
- case 1:
- z8530_sync_close(d, slvl->chan);
- break;
+ case 0:
+ z8530_sync_dma_close(d, slvl->chan);
+ break;
+ case 1:
+ z8530_sync_close(d, slvl->chan);
+ break;
}
return err;
}
slvl->chan->rx_function = sealevel_input;
- /*
- * Go go go
- */
netif_start_queue(d);
return 0;
}
@@ -121,9 +106,7 @@ static int sealevel_close(struct net_device *d)
struct slvl_device *slvl = dev_to_chan(d);
int unit = slvl->channel;
- /*
- * Discard new frames
- */
+ /* Discard new frames */
slvl->chan->rx_function = z8530_null_rx;
@@ -131,12 +114,12 @@ static int sealevel_close(struct net_device *d)
netif_stop_queue(d);
switch (unit) {
- case 0:
- z8530_sync_dma_close(d, slvl->chan);
- break;
- case 1:
- z8530_sync_close(d, slvl->chan);
- break;
+ case 0:
+ z8530_sync_dma_close(d, slvl->chan);
+ break;
+ case 1:
+ z8530_sync_close(d, slvl->chan);
+ break;
}
return 0;
}
@@ -144,16 +127,15 @@ static int sealevel_close(struct net_device *d)
static int sealevel_ioctl(struct net_device *d, struct ifreq *ifr, int cmd)
{
/* struct slvl_device *slvl=dev_to_chan(d);
- z8530_ioctl(d,&slvl->sync.chanA,ifr,cmd) */
+ * z8530_ioctl(d,&slvl->sync.chanA,ifr,cmd)
+ */
return hdlc_ioctl(d, ifr, cmd);
}
-/*
- * Passed network frames, fire them downwind.
- */
+/* Passed network frames, fire them downwind. */
static netdev_tx_t sealevel_queue_xmit(struct sk_buff *skb,
- struct net_device *d)
+ struct net_device *d)
{
return z8530_queue_xmit(dev_to_chan(d)->chan, skb);
}
@@ -176,6 +158,7 @@ static const struct net_device_ops sealevel_ops = {
static int slvl_setup(struct slvl_device *sv, int iobase, int irq)
{
struct net_device *dev = alloc_hdlcdev(sv);
+
if (!dev)
return -1;
@@ -195,10 +178,7 @@ static int slvl_setup(struct slvl_device *sv, int iobase, int irq)
return 0;
}
-
-/*
- * Allocate and setup Sealevel board.
- */
+/* Allocate and setup Sealevel board. */
static __init struct slvl_board *slvl_init(int iobase, int irq,
int txdma, int rxdma, int slow)
@@ -206,9 +186,7 @@ static __init struct slvl_board *slvl_init(int iobase, int irq,
struct z8530_dev *dev;
struct slvl_board *b;
- /*
- * Get the needed I/O space
- */
+ /* Get the needed I/O space */
if (!request_region(iobase, 8, "Sealevel 4021")) {
pr_warn("I/O 0x%X already in use\n", iobase);
@@ -227,17 +205,13 @@ static __init struct slvl_board *slvl_init(int iobase, int irq,
dev = &b->board;
- /*
- * Stuff in the I/O addressing
- */
+ /* Stuff in the I/O addressing */
dev->active = 0;
b->iobase = iobase;
- /*
- * Select 8530 delays for the old board
- */
+ /* Select 8530 delays for the old board */
if (slow)
iobase |= Z8530_PORT_SLEEP;
@@ -250,15 +224,13 @@ static __init struct slvl_board *slvl_init(int iobase, int irq,
dev->chanA.irqs = &z8530_nop;
dev->chanB.irqs = &z8530_nop;
- /*
- * Assert DTR enable DMA
- */
+ /* Assert DTR enable DMA */
outb(3 | (1 << 7), b->iobase + 4);
-
/* We want a fast IRQ for this device. Actually we'd like an even faster
- IRQ ;) - This is one driver RtLinux is made for */
+ * IRQ ;) - This is one driver RtLinux is made for
+ */
if (request_irq(irq, z8530_interrupt, 0,
"SeaLevel", dev) < 0) {
@@ -282,9 +254,7 @@ static __init struct slvl_board *slvl_init(int iobase, int irq,
disable_irq(irq);
- /*
- * Begin normal initialise
- */
+ /* Begin normal initialise */
if (z8530_init(dev) != 0) {
pr_err("Z8530 series device not found\n");
@@ -299,9 +269,7 @@ static __init struct slvl_board *slvl_init(int iobase, int irq,
z8530_channel_load(&dev->chanB, z8530_hdlc_kilostream_85230);
}
- /*
- * Now we can take the IRQ
- */
+ /* Now we can take the IRQ */
enable_irq(irq);
@@ -338,6 +306,7 @@ static void __exit slvl_shutdown(struct slvl_board *b)
for (u = 0; u < 2; u++) {
struct net_device *d = b->dev[u].chan->netdevice;
+
unregister_hdlc_device(d);
free_netdev(d);
}
@@ -351,12 +320,11 @@ static void __exit slvl_shutdown(struct slvl_board *b)
kfree(b);
}
-
-static int io=0x238;
-static int txdma=1;
-static int rxdma=3;
-static int irq=5;
-static bool slow=false;
+static int io = 0x238;
+static int txdma = 1;
+static int rxdma = 3;
+static int irq = 5;
+static bool slow;
module_param_hw(io, int, ioport, 0);
MODULE_PARM_DESC(io, "The I/O base of the Sealevel card");
generated by cgit v1.2.3 (git 2.39.0) at 2024-08-01 14:11:58 +0300