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path: root/drivers/net/usb/axusbnet.c
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Diffstat (limited to 'drivers/net/usb/axusbnet.c')
-rw-r--r--drivers/net/usb/axusbnet.c734
1 files changed, 379 insertions, 355 deletions
diff --git a/drivers/net/usb/axusbnet.c b/drivers/net/usb/axusbnet.c
index 00393d38a379..71ad734c7f19 100644
--- a/drivers/net/usb/axusbnet.c
+++ b/drivers/net/usb/axusbnet.c
@@ -30,8 +30,10 @@
* issues can usefully be addressed by this framework.
*/
-#define DEBUG // error path messages, extra info
-// #define VERBOSE // more; success messages
+/* error path messages, extra info */
+#define DEBUG
+/* more; success messages */
+/* #define VERBOSE */
#include <linux/module.h>
#include <linux/init.h>
@@ -51,7 +53,7 @@
static void axusbnet_unlink_rx_urbs(struct usbnet *);
-extern void
+static void
ax8817x_write_cmd_async(struct usbnet *dev, u8 cmd, u16 value, u16 index,
u16 size, void *data);
@@ -74,25 +76,25 @@ ax8817x_write_cmd_async(struct usbnet *dev, u8 cmd, u16 value, u16 index,
#define TX_QLEN(dev) (((dev)->udev->speed == USB_SPEED_HIGH) ? \
(RX_MAX_QUEUE_MEMORY/(dev)->hard_mtu) : 4)
-// reawaken network queue this soon after stopping; else watchdog barks
-//#define TX_TIMEOUT_JIFFIES (5*HZ)
-#define TX_TIMEOUT_JIFFIES (30*HZ)
+/* reawaken network queue this soon after stopping; else watchdog barks */
+/* #define TX_TIMEOUT_JIFFIES (5 * HZ) */
+#define TX_TIMEOUT_JIFFIES (30 * HZ)
-// throttle rx/tx briefly after some faults, so khubd might disconnect()
-// us (it polls at HZ/4 usually) before we report too many false errors.
-#define THROTTLE_JIFFIES (HZ/8)
+/* throttle rx/tx briefly after some faults, so khubd might disconnect() */
+/* us (it polls at HZ/4 usually) before we report too many false errors. */
+#define THROTTLE_JIFFIES (HZ / 8)
-// between wakeups
+/* between wakeups */
#define UNLINK_TIMEOUT_MS 3
/*-------------------------------------------------------------------------*/
-static const char driver_name [] = "axusbnet";
+static const char driver_name[] = "axusbnet";
/* use ethtool to change the level for any given device */
static int msg_level = -1;
-module_param (msg_level, int, 0);
-MODULE_PARM_DESC (msg_level, "Override default message level");
+module_param(msg_level, int, 0);
+MODULE_PARM_DESC(msg_level, "Override default message level");
/*-------------------------------------------------------------------------*/
@@ -149,27 +151,27 @@ int axusbnet_get_endpoints(struct usbnet *dev, struct usb_interface *intf)
if (alt->desc.bAlternateSetting != 0
|| !(dev->driver_info->flags & FLAG_NO_SETINT)) {
- tmp = usb_set_interface (dev->udev, alt->desc.bInterfaceNumber,
+ tmp = usb_set_interface(dev->udev, alt->desc.bInterfaceNumber,
alt->desc.bAlternateSetting);
if (tmp < 0)
return tmp;
}
- dev->in = usb_rcvbulkpipe (dev->udev,
+ dev->in = usb_rcvbulkpipe(dev->udev,
in->desc.bEndpointAddress & USB_ENDPOINT_NUMBER_MASK);
- dev->out = usb_sndbulkpipe (dev->udev,
+ dev->out = usb_sndbulkpipe(dev->udev,
out->desc.bEndpointAddress & USB_ENDPOINT_NUMBER_MASK);
dev->status = status;
return 0;
}
-#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,19)
-static void intr_complete (struct urb *urb, struct pt_regs *regs);
+#if LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 19)
+static void intr_complete(struct urb *urb, struct pt_regs *regs);
#else
-static void intr_complete (struct urb *urb);
+static void intr_complete(struct urb *urb);
#endif
-static int init_status (struct usbnet *dev, struct usb_interface *intf)
+static int init_status(struct usbnet *dev, struct usb_interface *intf)
{
char *buf = NULL;
unsigned pipe = 0;
@@ -179,30 +181,30 @@ static int init_status (struct usbnet *dev, struct usb_interface *intf)
if (!dev->driver_info->status)
return 0;
- pipe = usb_rcvintpipe (dev->udev,
+ pipe = usb_rcvintpipe(dev->udev,
dev->status->desc.bEndpointAddress
& USB_ENDPOINT_NUMBER_MASK);
- maxp = usb_maxpacket (dev->udev, pipe, 0);
+ maxp = usb_maxpacket(dev->udev, pipe, 0);
/* avoid 1 msec chatter: min 8 msec poll rate */
- period = max ((int) dev->status->desc.bInterval,
+ period = max((int) dev->status->desc.bInterval,
(dev->udev->speed == USB_SPEED_HIGH) ? 7 : 3);
- buf = kmalloc (maxp, GFP_KERNEL);
+ buf = kmalloc(maxp, GFP_KERNEL);
if (buf) {
- dev->interrupt = usb_alloc_urb (0, GFP_KERNEL);
+ dev->interrupt = usb_alloc_urb(0, GFP_KERNEL);
if (!dev->interrupt) {
- kfree (buf);
+ kfree(buf);
return -ENOMEM;
} else {
-#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,14)
+#if LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 14)
dev->interrupt->transfer_flags |= URB_ASYNC_UNLINK;
#endif
usb_fill_int_urb(dev->interrupt, dev->udev, pipe,
buf, maxp, intr_complete, dev, period);
devdbg(dev,
- "status ep%din, %d bytes period %d",
- usb_pipeendpoint(pipe), maxp, period);
+ "status ep%din, %d bytes period %d",
+ usb_pipeendpoint(pipe), maxp, period);
}
}
return 0;
@@ -213,22 +215,22 @@ static int init_status (struct usbnet *dev, struct usb_interface *intf)
* can return clones as well as just modify the original skb.
*/
static
-void axusbnet_skb_return (struct usbnet *dev, struct sk_buff *skb)
+void axusbnet_skb_return(struct usbnet *dev, struct sk_buff *skb)
{
int status;
skb->dev = dev->net;
- skb->protocol = eth_type_trans (skb, dev->net);
+ skb->protocol = eth_type_trans(skb, dev->net);
dev->stats.rx_packets++;
dev->stats.rx_bytes += skb->len;
- if (netif_msg_rx_status (dev))
- devdbg (dev, "< rx, len %zu, type 0x%x",
- skb->len + sizeof (struct ethhdr), skb->protocol);
- memset (skb->cb, 0, sizeof (struct skb_data));
- status = netif_rx (skb);
- if (status != NET_RX_SUCCESS && netif_msg_rx_err (dev))
- devdbg (dev, "netif_rx status %d", status);
+ if (netif_msg_rx_status(dev))
+ devdbg(dev, "< rx, len %zu, type 0x%x",
+ skb->len + sizeof(struct ethhdr), skb->protocol);
+ memset(skb->cb, 0, sizeof(struct skb_data));
+ status = netif_rx(skb);
+ if (status != NET_RX_SUCCESS && netif_msg_rx_err(dev))
+ devdbg(dev, "netif_rx status %d", status);
}
/*-------------------------------------------------------------------------
@@ -238,7 +240,7 @@ void axusbnet_skb_return (struct usbnet *dev, struct sk_buff *skb)
*-------------------------------------------------------------------------*/
static
-int axusbnet_change_mtu (struct net_device *net, int new_mtu)
+int axusbnet_change_mtu(struct net_device *net, int new_mtu)
{
struct usbnet *dev = netdev_priv(net);
int ll_mtu = new_mtu + net->hard_header_len;
@@ -247,7 +249,7 @@ int axusbnet_change_mtu (struct net_device *net, int new_mtu)
if (new_mtu <= 0)
return -EINVAL;
- // no second zero-length packet read wanted after mtu-sized packets
+ /* no second zero-length packet read wanted after mtu-sized packets */
if ((ll_mtu % dev->maxpacket) == 0)
return -EDOM;
net->mtu = new_mtu;
@@ -262,9 +264,9 @@ int axusbnet_change_mtu (struct net_device *net, int new_mtu)
return 0;
}
-static struct net_device_stats *axusbnet_get_stats (struct net_device *net)
+static struct net_device_stats *axusbnet_get_stats(struct net_device *net)
{
- struct usbnet *dev = netdev_priv (net);
+ struct usbnet *dev = netdev_priv(net);
return &dev->stats;
}
@@ -295,23 +297,23 @@ defer_bh(struct usbnet *dev, struct sk_buff *skb, struct sk_buff_head *list)
* but tasklet_schedule() doesn't. hope the failure is rare.
*/
static
-void axusbnet_defer_kevent (struct usbnet *dev, int work)
+void axusbnet_defer_kevent(struct usbnet *dev, int work)
{
- set_bit (work, &dev->flags);
- if (!schedule_work (&dev->kevent))
- deverr (dev, "kevent %d may have been dropped", work);
+ set_bit(work, &dev->flags);
+ if (!schedule_work(&dev->kevent))
+ deverr(dev, "kevent %d may have been dropped", work);
else
- devdbg (dev, "kevent %d scheduled", work);
+ devdbg(dev, "kevent %d scheduled", work);
}
/*-------------------------------------------------------------------------*/
-#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,19)
-static void rx_complete (struct urb *urb, struct pt_regs *regs);
+#if LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 19)
+static void rx_complete(struct urb *urb, struct pt_regs *regs);
#else
-static void rx_complete (struct urb *urb);
+static void rx_complete(struct urb *urb);
#endif
-static void rx_submit (struct usbnet *dev, struct urb *urb, gfp_t flags)
+static void rx_submit(struct usbnet *dev, struct urb *urb, gfp_t flags)
{
struct sk_buff *skb;
struct skb_data *entry;
@@ -329,30 +331,31 @@ static void rx_submit (struct usbnet *dev, struct urb *urb, gfp_t flags)
else
align = 0;
#endif
+ skb = alloc_skb(size + align, flags);
+ if (skb == NULL) {
- if ((skb = alloc_skb (size + align, flags)) == NULL) {
+ if (netif_msg_rx_err(dev))
+ devdbg(dev, "no rx skb");
- if (netif_msg_rx_err (dev))
- devdbg (dev, "no rx skb");
-
- if((dev->rx_urb_size > 2048) && dev->rx_size) {
+ if ((dev->rx_urb_size > 2048) && dev->rx_size) {
dev->rx_size--;
- dev->rx_urb_size = AX88772B_BULKIN_SIZE[dev->rx_size].size;
+ dev->rx_urb_size =
+ AX88772B_BULKIN_SIZE[dev->rx_size].size;
- ax8817x_write_cmd_async (dev, 0x2A,
+ ax8817x_write_cmd_async(dev, 0x2A,
AX88772B_BULKIN_SIZE[dev->rx_size].byte_cnt,
AX88772B_BULKIN_SIZE[dev->rx_size].threshold,
0, NULL);
}
if (!(dev->flags & EVENT_RX_MEMORY))
- axusbnet_defer_kevent (dev, EVENT_RX_MEMORY);
- usb_free_urb (urb);
+ axusbnet_defer_kevent(dev, EVENT_RX_MEMORY);
+ usb_free_urb(urb);
return;
}
if (align)
- skb_reserve (skb, NET_IP_ALIGN);
+ skb_reserve(skb, NET_IP_ALIGN);
entry = (struct skb_data *) skb->cb;
entry->urb = urb;
@@ -360,73 +363,73 @@ static void rx_submit (struct usbnet *dev, struct urb *urb, gfp_t flags)
entry->state = rx_start;
entry->length = 0;
- usb_fill_bulk_urb (urb, dev->udev, dev->in,
- skb->data, size, rx_complete, skb);
+ usb_fill_bulk_urb(urb, dev->udev, dev->in, skb->data,
+ size, rx_complete, skb);
- spin_lock_irqsave (&dev->rxq.lock, lockflags);
+ spin_lock_irqsave(&dev->rxq.lock, lockflags);
- if (netif_running (dev->net)
- && netif_device_present (dev->net)
- && !test_bit (EVENT_RX_HALT, &dev->flags)) {
- switch (retval = usb_submit_urb (urb, GFP_ATOMIC)) {
+ if (netif_running(dev->net)
+ && netif_device_present(dev->net)
+ && !test_bit(EVENT_RX_HALT, &dev->flags)) {
+ switch (retval = usb_submit_urb(urb, GFP_ATOMIC)) {
case -EPIPE:
- axusbnet_defer_kevent (dev, EVENT_RX_HALT);
+ axusbnet_defer_kevent(dev, EVENT_RX_HALT);
break;
case -ENOMEM:
- axusbnet_defer_kevent (dev, EVENT_RX_MEMORY);
+ axusbnet_defer_kevent(dev, EVENT_RX_MEMORY);
break;
case -ENODEV:
- if (netif_msg_ifdown (dev))
- devdbg (dev, "device gone");
- netif_device_detach (dev->net);
+ if (netif_msg_ifdown(dev))
+ devdbg(dev, "device gone");
+ netif_device_detach(dev->net);
break;
default:
- if (netif_msg_rx_err (dev))
- devdbg (dev, "rx submit, %d", retval);
- tasklet_schedule (&dev->bh);
+ if (netif_msg_rx_err(dev))
+ devdbg(dev, "rx submit, %d", retval);
+ tasklet_schedule(&dev->bh);
break;
case 0:
- __skb_queue_tail (&dev->rxq, skb);
+ __skb_queue_tail(&dev->rxq, skb);
}
} else {
- if (netif_msg_ifdown (dev))
- devdbg (dev, "rx: stopped");
+ if (netif_msg_ifdown(dev))
+ devdbg(dev, "rx: stopped");
retval = -ENOLINK;
}
- spin_unlock_irqrestore (&dev->rxq.lock, lockflags);
+ spin_unlock_irqrestore(&dev->rxq.lock, lockflags);
if (retval) {
- dev_kfree_skb_any (skb);
- usb_free_urb (urb);
+ dev_kfree_skb_any(skb);
+ usb_free_urb(urb);
}
}
/*-------------------------------------------------------------------------*/
-static inline void rx_process (struct usbnet *dev, struct sk_buff *skb)
+static inline void rx_process(struct usbnet *dev, struct sk_buff *skb)
{
if (dev->driver_info->rx_fixup
- && !dev->driver_info->rx_fixup (dev, skb))
+ && !dev->driver_info->rx_fixup(dev, skb))
goto error;
- // else network stack removes extra byte if we forced a short packet
+ /* else network stack removes extra byte if we forced a short packet */
if (skb->len)
- axusbnet_skb_return (dev, skb);
+ axusbnet_skb_return(dev, skb);
else {
- if (netif_msg_rx_err (dev))
- devdbg (dev, "drop");
+ if (netif_msg_rx_err(dev))
+ devdbg(dev, "drop");
error:
dev->stats.rx_errors++;
- skb_queue_tail (&dev->done, skb);
+ skb_queue_tail(&dev->done, skb);
}
}
/*-------------------------------------------------------------------------*/
-#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,19)
-static void rx_complete (struct urb *urb, struct pt_regs *regs)
+#if LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 19)
+static void rx_complete(struct urb *urb, struct pt_regs *regs)
#else
-static void rx_complete (struct urb *urb)
+static void rx_complete(struct urb *urb)
#endif
{
struct sk_buff *skb = (struct sk_buff *) urb->context;
@@ -434,7 +437,7 @@ static void rx_complete (struct urb *urb)
struct usbnet *dev = entry->dev;
int urb_status = urb->status;
- skb_put (skb, urb->actual_length);
+ skb_put(skb, urb->actual_length);
entry->state = rx_done;
entry->urb = NULL;
@@ -445,8 +448,8 @@ static void rx_complete (struct urb *urb)
entry->state = rx_cleanup;
dev->stats.rx_errors++;
dev->stats.rx_length_errors++;
- if (netif_msg_rx_err (dev))
- devdbg (dev, "rx length %d", skb->len);
+ if (netif_msg_rx_err(dev))
+ devdbg(dev, "rx length %d", skb->len);
}
break;
@@ -457,14 +460,14 @@ static void rx_complete (struct urb *urb)
*/
case -EPIPE:
dev->stats.rx_errors++;
- axusbnet_defer_kevent (dev, EVENT_RX_HALT);
- // FALLTHROUGH
+ axusbnet_defer_kevent(dev, EVENT_RX_HALT);
+ /* FALLTHROUGH */
/* software-driven interface shutdown */
case -ECONNRESET: /* async unlink */
case -ESHUTDOWN: /* hardware gone */
- if (netif_msg_ifdown (dev))
- devdbg (dev, "rx shutdown, code %d", urb_status);
+ if (netif_msg_ifdown(dev))
+ devdbg(dev, "rx shutdown, code %d", urb_status);
goto block;
/* we get controller i/o faults during khubd disconnect() delays.
@@ -475,10 +478,10 @@ static void rx_complete (struct urb *urb)
case -ETIME:
case -EILSEQ:
dev->stats.rx_errors++;
- if (!timer_pending (&dev->delay)) {
- mod_timer (&dev->delay, jiffies + THROTTLE_JIFFIES);
- if (netif_msg_link (dev))
- devdbg (dev, "rx throttle %d", urb_status);
+ if (!timer_pending(&dev->delay)) {
+ mod_timer(&dev->delay, jiffies + THROTTLE_JIFFIES);
+ if (netif_msg_link(dev))
+ devdbg(dev, "rx throttle %d", urb_status);
}
block:
entry->state = rx_cleanup;
@@ -489,34 +492,34 @@ block:
/* data overrun ... flush fifo? */
case -EOVERFLOW:
dev->stats.rx_over_errors++;
- // FALLTHROUGH
+ /* FALLTHROUGH */
default:
entry->state = rx_cleanup;
dev->stats.rx_errors++;
- if (netif_msg_rx_err (dev))
- devdbg (dev, "rx status %d", urb_status);
+ if (netif_msg_rx_err(dev))
+ devdbg(dev, "rx status %d", urb_status);
break;
}
defer_bh(dev, skb, &dev->rxq);
if (urb) {
- if (netif_running (dev->net)
- && !test_bit (EVENT_RX_HALT, &dev->flags)) {
- rx_submit (dev, urb, GFP_ATOMIC);
+ if (netif_running(dev->net) &&
+ !test_bit(EVENT_RX_HALT, &dev->flags)) {
+ rx_submit(dev, urb, GFP_ATOMIC);
return;
}
- usb_free_urb (urb);
+ usb_free_urb(urb);
}
- if (netif_msg_rx_err (dev))
- devdbg (dev, "no read resubmitted");
+ if (netif_msg_rx_err(dev))
+ devdbg(dev, "no read resubmitted");
}
-#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,19)
-static void intr_complete (struct urb *urb, struct pt_regs *regs)
+#if LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 19)
+static void intr_complete(struct urb *urb, struct pt_regs *regs)
#else
-static void intr_complete (struct urb *urb)
+static void intr_complete(struct urb *urb)
#endif
{
struct usbnet *dev = urb->context;
@@ -531,38 +534,38 @@ static void intr_complete (struct urb *urb)
/* software-driven interface shutdown */
case -ENOENT: /* urb killed */
case -ESHUTDOWN: /* hardware gone */
- if (netif_msg_ifdown (dev))
- devdbg (dev, "intr shutdown, code %d", status);
+ if (netif_msg_ifdown(dev))
+ devdbg(dev, "intr shutdown, code %d", status);
return;
/* NOTE: not throttling like RX/TX, since this endpoint
* already polls infrequently
*/
default:
- devdbg (dev, "intr status %d", status);
+ devdbg(dev, "intr status %d", status);
break;
}
- if (!netif_running (dev->net))
+ if (!netif_running(dev->net))
return;
memset(urb->transfer_buffer, 0, urb->transfer_buffer_length);
- status = usb_submit_urb (urb, GFP_ATOMIC);
- if (status != 0 && netif_msg_timer (dev))
+ status = usb_submit_urb(urb, GFP_ATOMIC);
+ if (status != 0 && netif_msg_timer(dev))
deverr(dev, "intr resubmit --> %d", status);
}
/*-------------------------------------------------------------------------*/
-// unlink pending rx/tx; completion handlers do all other cleanup
+/* unlink pending rx/tx; completion handlers do all other cleanup */
-static int unlink_urbs (struct usbnet *dev, struct sk_buff_head *q)
+static int unlink_urbs(struct usbnet *dev, struct sk_buff_head *q)
{
unsigned long flags;
struct sk_buff *skb, *skbnext;
int count = 0;
- spin_lock_irqsave (&q->lock, flags);
+ spin_lock_irqsave(&q->lock, flags);
skb_queue_walk_safe(q, skb, skbnext) {
struct skb_data *entry;
struct urb *urb;
@@ -571,55 +574,54 @@ static int unlink_urbs (struct usbnet *dev, struct sk_buff_head *q)
entry = (struct skb_data *) skb->cb;
urb = entry->urb;
- // during some PM-driven resume scenarios,
- // these (async) unlinks complete immediately
- retval = usb_unlink_urb (urb);
+ /* during some PM-driven resume scenarios, */
+ /* these (async) unlinks complete immediately */
+ retval = usb_unlink_urb(urb);
if (retval != -EINPROGRESS && retval != 0)
- devdbg (dev, "unlink urb err, %d", retval);
+ devdbg(dev, "unlink urb err, %d", retval);
else
count++;
}
- spin_unlock_irqrestore (&q->lock, flags);
+ spin_unlock_irqrestore(&q->lock, flags);
return count;
}
-// Flush all pending rx urbs
-// minidrivers may need to do this when the MTU changes
+/* Flush all pending rx urbs */
+/* minidrivers may need to do this when the MTU changes */
static
void axusbnet_unlink_rx_urbs(struct usbnet *dev)
{
if (netif_running(dev->net)) {
- (void) unlink_urbs (dev, &dev->rxq);
+ (void) unlink_urbs(dev, &dev->rxq);
tasklet_schedule(&dev->bh);
}
}
/*-------------------------------------------------------------------------*/
-// precondition: never called in_interrupt
+/* precondition: never called in_interrupt */
static
-int axusbnet_stop (struct net_device *net)
+int axusbnet_stop(struct net_device *net)
{
struct usbnet *dev = netdev_priv(net);
struct driver_info *info = dev->driver_info;
int temp;
int retval;
-#if LINUX_VERSION_CODE > KERNEL_VERSION(2,6,18)
- DECLARE_WAIT_QUEUE_HEAD_ONSTACK (unlink_wakeup);
+#if LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 18)
+ DECLARE_WAIT_QUEUE_HEAD_ONSTACK(unlink_wakeup);
#else
- DECLARE_WAIT_QUEUE_HEAD (unlink_wakeup);
+ DECLARE_WAIT_QUEUE_HEAD(unlink_wakeup);
#endif
- DECLARE_WAITQUEUE (wait, current);
+ DECLARE_WAITQUEUE(wait, current);
- netif_stop_queue (net);
+ netif_stop_queue(net);
- if (netif_msg_ifdown (dev))
- devinfo (dev, "stop stats: rx/tx %ld/%ld, errs %ld/%ld",
+ if (netif_msg_ifdown(dev))
+ devinfo(dev, "stop stats: rx/tx %ld/%ld, errs %ld/%ld",
dev->stats.rx_packets, dev->stats.tx_packets,
- dev->stats.rx_errors, dev->stats.tx_errors
- );
+ dev->stats.rx_errors, dev->stats.tx_errors);
/* allow minidriver to stop correctly (wireless devices to turn off
* radio etc) */
@@ -647,7 +649,7 @@ int axusbnet_stop (struct net_device *net)
msleep(UNLINK_TIMEOUT_MS);
if (netif_msg_ifdown(dev))
devdbg(dev, "waited for %d urb completions",
- temp);
+ temp);
}
dev->wait = NULL;
remove_wait_queue(&unlink_wakeup, &wait);
@@ -660,55 +662,62 @@ int axusbnet_stop (struct net_device *net)
* else workers could deadlock; so make workers a NOP.
*/
dev->flags = 0;
- del_timer_sync (&dev->delay);
- tasklet_kill (&dev->bh);
+ del_timer_sync(&dev->delay);
+ tasklet_kill(&dev->bh);
return 0;
}
/*-------------------------------------------------------------------------*/
-// posts reads, and enables write queuing
+/* posts reads, and enables write queuing */
-// precondition: never called in_interrupt
+/* precondition: never called in_interrupt */
static
-int axusbnet_open (struct net_device *net)
+int axusbnet_open(struct net_device *net)
{
struct usbnet *dev = netdev_priv(net);
int retval = 0;
struct driver_info *info = dev->driver_info;
- // put into "known safe" state
- if (info->reset && (retval = info->reset (dev)) < 0) {
- if (netif_msg_ifup (dev))
- devinfo (dev,
- "open reset fail (%d) usbnet usb-%s-%s, %s",
- retval,
- dev->udev->bus->bus_name, dev->udev->devpath,
- info->description);
- goto done;
+ /* put into "known safe" state */
+ if (info->reset) {
+ retval = info->reset(dev);
+ if (retval < 0) {
+ if (netif_msg_ifup(dev))
+ devinfo(dev,
+ "open reset fail (%d) usbnet usb-%s-%s, %s",
+ retval,
+ dev->udev->bus->bus_name,
+ dev->udev->devpath,
+ info->description);
+ goto done;
+ }
}
- // insist peer be connected
- if (info->check_connect && (retval = info->check_connect (dev)) < 0) {
- if (netif_msg_ifup (dev))
- devdbg (dev, "can't open; %d", retval);
- goto done;
+ /* insist peer be connected */
+ if (info->check_connect) {
+ retval = info->check_connect(dev);
+ if (retval < 0) {
+ if (netif_msg_ifup(dev))
+ devdbg(dev, "can't open; %d", retval);
+ goto done;
+ }
}
/* start any status interrupt transfer */
if (dev->interrupt) {
- retval = usb_submit_urb (dev->interrupt, GFP_KERNEL);
+ retval = usb_submit_urb(dev->interrupt, GFP_KERNEL);
if (retval < 0) {
- if (netif_msg_ifup (dev))
- deverr (dev, "intr submit %d", retval);
+ if (netif_msg_ifup(dev))
+ deverr(dev, "intr submit %d", retval);
goto done;
}
}
- netif_start_queue (net);
- if (netif_msg_ifup (dev)) {
+ netif_start_queue(net);
+ if (netif_msg_ifup(dev)) {
char *framing;
if (dev->driver_info->flags & FLAG_FRAMING_NC)
@@ -724,14 +733,13 @@ int axusbnet_open (struct net_device *net)
else
framing = "simple";
- devinfo (dev, "open: enable queueing "
- "(rx %d, tx %d) mtu %d %s framing",
- (int)RX_QLEN (dev), (int)TX_QLEN (dev), dev->net->mtu,
+ devinfo(dev, "open: enable queueing (rx %d, tx %d) mtu %d %s framing",
+ (int)RX_QLEN(dev), (int)TX_QLEN(dev), dev->net->mtu,
framing);
}
- // delay posting reads until we're fully open
- tasklet_schedule (&dev->bh);
+ /* delay posting reads until we're fully open */
+ tasklet_schedule(&dev->bh);
return retval;
done:
return retval;
@@ -744,7 +752,7 @@ done:
*/
static
-int axusbnet_get_settings (struct net_device *net, struct ethtool_cmd *cmd)
+int axusbnet_get_settings(struct net_device *net, struct ethtool_cmd *cmd)
{
struct usbnet *dev = netdev_priv(net);
@@ -755,7 +763,7 @@ int axusbnet_get_settings (struct net_device *net, struct ethtool_cmd *cmd)
}
static
-int axusbnet_set_settings (struct net_device *net, struct ethtool_cmd *cmd)
+int axusbnet_set_settings(struct net_device *net, struct ethtool_cmd *cmd)
{
struct usbnet *dev = netdev_priv(net);
int retval;
@@ -774,13 +782,13 @@ int axusbnet_set_settings (struct net_device *net, struct ethtool_cmd *cmd)
}
static
-u32 axusbnet_get_link (struct net_device *net)
+u32 axusbnet_get_link(struct net_device *net)
{
struct usbnet *dev = netdev_priv(net);
/* If a check_connect is defined, return its result */
if (dev->driver_info->check_connect)
- return dev->driver_info->check_connect (dev) == 0;
+ return dev->driver_info->check_connect(dev) == 0;
/* if the device has mii operations, use those */
if (dev->mii.mdio_read)
@@ -802,19 +810,19 @@ int axusbnet_nway_reset(struct net_device *net)
}
static
-void axusbnet_get_drvinfo (struct net_device *net, struct ethtool_drvinfo *info)
+void axusbnet_get_drvinfo(struct net_device *net, struct ethtool_drvinfo *info)
{
struct usbnet *dev = netdev_priv(net);
- strncpy (info->driver, dev->driver_name, sizeof info->driver);
- strncpy (info->version, DRIVER_VERSION, sizeof info->version);
- strncpy (info->fw_version, dev->driver_info->description,
- sizeof info->fw_version);
- usb_make_path (dev->udev, info->bus_info, sizeof info->bus_info);
+ strncpy(info->driver, dev->driver_name, sizeof(info->driver));
+ strncpy(info->version, DRIVER_VERSION, sizeof(info->version));
+ strncpy(info->fw_version, dev->driver_info->description,
+ sizeof(info->fw_version));
+ usb_make_path(dev->udev, info->bus_info, sizeof(info->bus_info));
}
static
-u32 axusbnet_get_msglevel (struct net_device *net)
+u32 axusbnet_get_msglevel(struct net_device *net)
{
struct usbnet *dev = netdev_priv(net);
@@ -822,7 +830,7 @@ u32 axusbnet_get_msglevel (struct net_device *net)
}
static
-void axusbnet_set_msglevel (struct net_device *net, u32 level)
+void axusbnet_set_msglevel(struct net_device *net, u32 level)
{
struct usbnet *dev = netdev_priv(net);
@@ -847,12 +855,12 @@ static struct ethtool_ops axusbnet_ethtool_ops = {
* NOTE: with 2.5 we could do more of this using completion callbacks,
* especially now that control transfers can be queued.
*/
-#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,20)
-static void kevent (void *data)
+#if LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 20)
+static void kevent(void *data)
{
struct usbnet *dev = (struct usbnet *)data;
#else
-static void kevent (struct work_struct *work)
+static void kevent(struct work_struct *work)
{
struct usbnet *dev =
container_of(work, struct usbnet, kevent);
@@ -860,80 +868,85 @@ static void kevent (struct work_struct *work)
int status;
/* usb_clear_halt() needs a thread context */
- if (test_bit (EVENT_TX_HALT, &dev->flags)) {
+ if (test_bit(EVENT_TX_HALT, &dev->flags)) {
- unlink_urbs (dev, &dev->txq);
- status = usb_clear_halt (dev->udev, dev->out);
+ unlink_urbs(dev, &dev->txq);
+ status = usb_clear_halt(dev->udev, dev->out);
if (status < 0
&& status != -EPIPE
&& status != -ESHUTDOWN) {
- if (netif_msg_tx_err (dev))
- deverr (dev, "can't clear tx halt, status %d",
- status);
+ if (netif_msg_tx_err(dev))
+ deverr(dev, "can't clear tx halt, status %d",
+ status);
} else {
- clear_bit (EVENT_TX_HALT, &dev->flags);
+ clear_bit(EVENT_TX_HALT, &dev->flags);
if (status != -ESHUTDOWN)
- netif_wake_queue (dev->net);
+ netif_wake_queue(dev->net);
}
}
- if (test_bit (EVENT_RX_HALT, &dev->flags)) {
+ if (test_bit(EVENT_RX_HALT, &dev->flags)) {
- unlink_urbs (dev, &dev->rxq);
- status = usb_clear_halt (dev->udev, dev->in);
+ unlink_urbs(dev, &dev->rxq);
+ status = usb_clear_halt(dev->udev, dev->in);
if (status < 0
&& status != -EPIPE
&& status != -ESHUTDOWN) {
- if (netif_msg_rx_err (dev))
- deverr (dev, "can't clear rx halt, status %d",
- status);
+ if (netif_msg_rx_err(dev))
+ deverr(dev, "can't clear rx halt, status %d",
+ status);
} else {
- clear_bit (EVENT_RX_HALT, &dev->flags);
- tasklet_schedule (&dev->bh);
+ clear_bit(EVENT_RX_HALT, &dev->flags);
+ tasklet_schedule(&dev->bh);
}
}
/* tasklet could resubmit itself forever if memory is tight */
- if (test_bit (EVENT_RX_MEMORY, &dev->flags)) {
+ if (test_bit(EVENT_RX_MEMORY, &dev->flags)) {
struct urb *urb = NULL;
- if (netif_running (dev->net))
- urb = usb_alloc_urb (0, GFP_KERNEL);
+ if (netif_running(dev->net))
+ urb = usb_alloc_urb(0, GFP_KERNEL);
else
- clear_bit (EVENT_RX_MEMORY, &dev->flags);
+ clear_bit(EVENT_RX_MEMORY, &dev->flags);
if (urb != NULL) {
- clear_bit (EVENT_RX_MEMORY, &dev->flags);
-#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,14)
+ clear_bit(EVENT_RX_MEMORY, &dev->flags);
+#if LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 14)
urb->transfer_flags |= URB_ASYNC_UNLINK;
#endif
- rx_submit (dev, urb, GFP_KERNEL);
- tasklet_schedule (&dev->bh);
+ rx_submit(dev, urb, GFP_KERNEL);
+ tasklet_schedule(&dev->bh);
}
}
- if (test_bit (EVENT_LINK_RESET, &dev->flags)) {
+ if (test_bit(EVENT_LINK_RESET, &dev->flags)) {
struct driver_info *info = dev->driver_info;
int retval = 0;
- clear_bit (EVENT_LINK_RESET, &dev->flags);
- if(info->link_reset && (retval = info->link_reset(dev)) < 0) {
- devinfo(dev, "link reset failed (%d) usbnet usb-%s-%s, %s",
- retval,
- dev->udev->bus->bus_name, dev->udev->devpath,
- info->description);
+ clear_bit(EVENT_LINK_RESET, &dev->flags);
+
+ if (info->link_reset) {
+ retval = info->link_reset(dev);
+ if (retval < 0) {
+ devinfo(dev,
+ "link reset failed (%d) usbnet usb-%s-%s, %s",
+ retval,
+ dev->udev->bus->bus_name,
+ dev->udev->devpath,
+ info->description);
+ }
}
}
if (dev->flags)
- devdbg (dev, "kevent done, flags = 0x%lx",
- dev->flags);
+ devdbg(dev, "kevent done, flags = 0x%lx", dev->flags);
}
/*-------------------------------------------------------------------------*/
-#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,19)
-static void tx_complete (struct urb *urb, struct pt_regs *regs)
+#if LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 19)
+static void tx_complete(struct urb *urb, struct pt_regs *regs)
#else
-static void tx_complete (struct urb *urb)
+static void tx_complete(struct urb *urb)
#endif
{
struct sk_buff *skb = (struct sk_buff *) urb->context;
@@ -948,31 +961,31 @@ static void tx_complete (struct urb *urb)
switch (urb->status) {
case -EPIPE:
- axusbnet_defer_kevent (dev, EVENT_TX_HALT);
+ axusbnet_defer_kevent(dev, EVENT_TX_HALT);
break;
/* software-driven interface shutdown */
- case -ECONNRESET: // async unlink
- case -ESHUTDOWN: // hardware gone
+ case -ECONNRESET: /* async unlink */
+ case -ESHUTDOWN: /* hardware gone */
break;
- // like rx, tx gets controller i/o faults during khubd delays
- // and so it uses the same throttling mechanism.
+ /* like rx, tx gets controller i/o faults during khubd delays */
+ /* and so it uses the same throttling mechanism. */
case -EPROTO:
case -ETIME:
case -EILSEQ:
- if (!timer_pending (&dev->delay)) {
- mod_timer (&dev->delay,
- jiffies + THROTTLE_JIFFIES);
- if (netif_msg_link (dev))
- devdbg (dev, "tx throttle %d",
- urb->status);
+ if (!timer_pending(&dev->delay)) {
+ mod_timer(&dev->delay,
+ jiffies + THROTTLE_JIFFIES);
+ if (netif_msg_link(dev))
+ devdbg(dev, "tx throttle %d",
+ urb->status);
}
- netif_stop_queue (dev->net);
+ netif_stop_queue(dev->net);
break;
default:
- if (netif_msg_tx_err (dev))
- devdbg (dev, "tx err %d", entry->urb->status);
+ if (netif_msg_tx_err(dev))
+ devdbg(dev, "tx err %d", entry->urb->status);
break;
}
}
@@ -985,24 +998,23 @@ static void tx_complete (struct urb *urb)
/*-------------------------------------------------------------------------*/
static
-void axusbnet_tx_timeout (struct net_device *net)
+void axusbnet_tx_timeout(struct net_device *net)
{
- struct usbnet *dev = netdev_priv(net);
+ struct usbnet *dev = netdev_priv(net);
- unlink_urbs (dev, &dev->txq);
- tasklet_schedule (&dev->bh);
+ unlink_urbs(dev, &dev->txq);
+ tasklet_schedule(&dev->bh);
- // FIXME: device recovery -- reset?
+ /* FIXME: device recovery -- reset? */
}
/*-------------------------------------------------------------------------*/
-#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,32)
+#if LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 32)
static int
#else
static netdev_tx_t
#endif
-axusbnet_start_xmit (struct sk_buff *skb,
- struct net_device *net)
+axusbnet_start_xmit(struct sk_buff *skb, struct net_device *net)
{
struct usbnet *dev = netdev_priv(net);
int length;
@@ -1012,21 +1024,22 @@ axusbnet_start_xmit (struct sk_buff *skb,
unsigned long flags;
int retval;
- // some devices want funky USB-level framing, for
- // win32 driver (usually) and/or hardware quirks
+ /* some devices want funky USB-level framing, for */
+ /* win32 driver (usually) and/or hardware quirks */
if (info->tx_fixup) {
- skb = info->tx_fixup (dev, skb, GFP_ATOMIC);
+ skb = info->tx_fixup(dev, skb, GFP_ATOMIC);
if (!skb) {
- if (netif_msg_tx_err (dev))
- devdbg (dev, "can't tx_fixup skb");
+ if (netif_msg_tx_err(dev))
+ devdbg(dev, "can't tx_fixup skb");
goto drop;
}
}
length = skb->len;
- if (!(urb = usb_alloc_urb (0, GFP_ATOMIC))) {
- if (netif_msg_tx_err (dev))
- devdbg (dev, "no urb");
+ urb = usb_alloc_urb(0, GFP_ATOMIC);
+ if (!urb) {
+ if (netif_msg_tx_err(dev))
+ devdbg(dev, "no urb");
goto drop;
}
@@ -1036,8 +1049,8 @@ axusbnet_start_xmit (struct sk_buff *skb,
entry->state = tx_start;
entry->length = length;
- usb_fill_bulk_urb (urb, dev->udev, dev->out,
- skb->data, skb->len, tx_complete, skb);
+ usb_fill_bulk_urb(urb, dev->udev, dev->out, skb->data,
+ skb->len, tx_complete, skb);
/* don't assume the hardware handles USB_ZERO_PACKET
* NOTE: strictly conforming cdc-ether devices should expect
@@ -1051,103 +1064,102 @@ axusbnet_start_xmit (struct sk_buff *skb,
}
}
- spin_lock_irqsave (&dev->txq.lock, flags);
+ spin_lock_irqsave(&dev->txq.lock, flags);
- switch ((retval = usb_submit_urb (urb, GFP_ATOMIC))) {
+ switch ((retval = usb_submit_urb(urb, GFP_ATOMIC))) {
case -EPIPE:
- netif_stop_queue (net);
- axusbnet_defer_kevent (dev, EVENT_TX_HALT);
+ netif_stop_queue(net);
+ axusbnet_defer_kevent(dev, EVENT_TX_HALT);
break;
default:
- if (netif_msg_tx_err (dev))
- devdbg (dev, "tx: submit urb err %d", retval);
+ if (netif_msg_tx_err(dev))
+ devdbg(dev, "tx: submit urb err %d", retval);
break;
case 0:
net->trans_start = jiffies;
- __skb_queue_tail (&dev->txq, skb);
- if (dev->txq.qlen >= TX_QLEN (dev))
- netif_stop_queue (net);
+ __skb_queue_tail(&dev->txq, skb);
+ if (dev->txq.qlen >= TX_QLEN(dev))
+ netif_stop_queue(net);
}
- spin_unlock_irqrestore (&dev->txq.lock, flags);
+ spin_unlock_irqrestore(&dev->txq.lock, flags);
if (retval) {
- if (netif_msg_tx_err (dev))
- devdbg (dev, "drop, code %d", retval);
+ if (netif_msg_tx_err(dev))
+ devdbg(dev, "drop, code %d", retval);
drop:
dev->stats.tx_dropped++;
if (skb)
- dev_kfree_skb_any (skb);
- usb_free_urb (urb);
- } else if (netif_msg_tx_queued (dev)) {
- devdbg (dev, "> tx, len %d, type 0x%x",
- length, skb->protocol);
+ dev_kfree_skb_any(skb);
+ usb_free_urb(urb);
+ } else if (netif_msg_tx_queued(dev)) {
+ devdbg(dev, "> tx, len %d, type 0x%x",
+ length, skb->protocol);
}
return NETDEV_TX_OK;
}
/*-------------------------------------------------------------------------*/
-// tasklet (work deferred from completions, in_irq) or timer
+/* tasklet (work deferred from completions, in_irq) or timer */
-static void axusbnet_bh (unsigned long param)
+static void axusbnet_bh(unsigned long param)
{
struct usbnet *dev = (struct usbnet *) param;
struct sk_buff *skb;
struct skb_data *entry;
- while ((skb = skb_dequeue (&dev->done))) {
+ while ((skb = skb_dequeue(&dev->done))) {
entry = (struct skb_data *) skb->cb;
switch (entry->state) {
case rx_done:
entry->state = rx_cleanup;
- rx_process (dev, skb);
+ rx_process(dev, skb);
continue;
case tx_done:
case rx_cleanup:
- usb_free_urb (entry->urb);
- dev_kfree_skb (skb);
+ usb_free_urb(entry->urb);
+ dev_kfree_skb(skb);
continue;
default:
- devdbg (dev, "bogus skb state %d", entry->state);
+ devdbg(dev, "bogus skb state %d", entry->state);
}
}
- // waiting for all pending urbs to complete?
+ /* waiting for all pending urbs to complete? */
if (dev->wait) {
- if ((dev->txq.qlen + dev->rxq.qlen + dev->done.qlen) == 0) {
- wake_up (dev->wait);
- }
-
- // or are we maybe short a few urbs?
- } else if (netif_running (dev->net)
- && netif_device_present (dev->net)
- && !timer_pending (&dev->delay)
- && !test_bit (EVENT_RX_HALT, &dev->flags)) {
+ if ((dev->txq.qlen + dev->rxq.qlen + dev->done.qlen) == 0)
+ wake_up(dev->wait);
+
+ /* or are we maybe short a few urbs? */
+ } else if (netif_running(dev->net)
+ && netif_device_present(dev->net)
+ && !timer_pending(&dev->delay)
+ && !test_bit(EVENT_RX_HALT, &dev->flags)) {
int temp = dev->rxq.qlen;
- int qlen = RX_QLEN (dev);
+ int qlen = RX_QLEN(dev);
if (temp < qlen) {
struct urb *urb;
int i;
- // don't refill the queue all at once
+ /* don't refill the queue all at once */
for (i = 0; i < 10 && dev->rxq.qlen < qlen; i++) {
- urb = usb_alloc_urb (0, GFP_ATOMIC);
+ urb = usb_alloc_urb(0, GFP_ATOMIC);
if (urb != NULL) {
-#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,14)
+#if LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 14)
urb->transfer_flags |= URB_ASYNC_UNLINK;
#endif
- rx_submit (dev, urb, GFP_ATOMIC);
+ rx_submit(dev, urb, GFP_ATOMIC);
}
}
- if (temp != dev->rxq.qlen && netif_msg_link (dev))
- devdbg (dev, "rxqlen %d --> %d",
- temp, dev->rxq.qlen);
+ if (temp != dev->rxq.qlen && netif_msg_link(dev))
+ devdbg(dev, "rxqlen %d --> %d",
+ temp, dev->rxq.qlen);
if (dev->rxq.qlen < qlen)
- tasklet_schedule (&dev->bh);
+ tasklet_schedule(&dev->bh);
}
- if (dev->txq.qlen < TX_QLEN (dev))
- netif_wake_queue (dev->net);
+ if (dev->txq.qlen < TX_QLEN(dev))
+ netif_wake_queue(dev->net);
}
}
@@ -1158,10 +1170,10 @@ static void axusbnet_bh (unsigned long param)
*
*-------------------------------------------------------------------------*/
-// precondition: never called in_interrupt
+/* precondition: never called in_interrupt */
static
-void axusbnet_disconnect (struct usb_interface *intf)
+void axusbnet_disconnect(struct usb_interface *intf)
{
struct usbnet *dev;
struct usb_device *xdev;
@@ -1172,33 +1184,33 @@ void axusbnet_disconnect (struct usb_interface *intf)
if (!dev)
return;
- xdev = interface_to_usbdev (intf);
+ xdev = interface_to_usbdev(intf);
- if (netif_msg_probe (dev))
- devinfo (dev, "unregister '%s' usb-%s-%s, %s",
+ if (netif_msg_probe(dev))
+ devinfo(dev, "unregister '%s' usb-%s-%s, %s",
intf->dev.driver->name,
xdev->bus->bus_name, xdev->devpath,
dev->driver_info->description);
net = dev->net;
- unregister_netdev (net);
+ unregister_netdev(net);
/* we don't hold rtnl here ... */
- flush_scheduled_work ();
+ flush_scheduled_work();
if (dev->driver_info->unbind)
- dev->driver_info->unbind (dev, intf);
+ dev->driver_info->unbind(dev, intf);
free_netdev(net);
- usb_put_dev (xdev);
+ usb_put_dev(xdev);
}
/*-------------------------------------------------------------------------*/
-// precondition: never called in_interrupt
+/* precondition: never called in_interrupt */
static int
-axusbnet_probe (struct usb_interface *udev, const struct usb_device_id *prod)
+axusbnet_probe(struct usb_interface *udev, const struct usb_device_id *prod)
{
struct usbnet *dev;
struct net_device *net;
@@ -1211,20 +1223,20 @@ axusbnet_probe (struct usb_interface *udev, const struct usb_device_id *prod)
name = udev->dev.driver->name;
info = (struct driver_info *) prod->driver_info;
if (!info) {
- printk (KERN_ERR "blacklisted by %s\n", name);
+ printk(KERN_ERR "blacklisted by %s\n", name);
return -ENODEV;
}
- xdev = interface_to_usbdev (udev);
+ xdev = interface_to_usbdev(udev);
interface = udev->cur_altsetting;
- usb_get_dev (xdev);
+ usb_get_dev(xdev);
status = -ENOMEM;
- // set up our own records
+ /* set up our own records */
net = alloc_etherdev(sizeof(*dev));
if (!net) {
- dbg ("can't kmalloc dev");
+ printk(KERN_ERR "can't kmalloc dev");
goto out;
}
@@ -1233,23 +1245,23 @@ axusbnet_probe (struct usb_interface *udev, const struct usb_device_id *prod)
dev->intf = udev;
dev->driver_info = info;
dev->driver_name = name;
- dev->msg_enable = netif_msg_init (msg_level, NETIF_MSG_DRV
- | NETIF_MSG_PROBE | NETIF_MSG_LINK);
- skb_queue_head_init (&dev->rxq);
- skb_queue_head_init (&dev->txq);
- skb_queue_head_init (&dev->done);
+ dev->msg_enable = netif_msg_init(msg_level, NETIF_MSG_DRV |
+ NETIF_MSG_PROBE | NETIF_MSG_LINK);
+ skb_queue_head_init(&dev->rxq);
+ skb_queue_head_init(&dev->txq);
+ skb_queue_head_init(&dev->done);
dev->bh.func = axusbnet_bh;
dev->bh.data = (unsigned long) dev;
-#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,20)
- INIT_WORK (&dev->kevent, kevent, dev);
+#if LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 20)
+ INIT_WORK(&dev->kevent, kevent, dev);
#else
- INIT_WORK (&dev->kevent, kevent);
+ INIT_WORK(&dev->kevent, kevent);
#endif
dev->delay.function = axusbnet_bh;
dev->delay.data = (unsigned long) dev;
- init_timer (&dev->delay);
-// mutex_init (&dev->phy_mutex);
+ init_timer(&dev->delay);
+ /* mutex_init(&dev->phy_mutex); */
dev->net = net;
@@ -1259,13 +1271,13 @@ axusbnet_probe (struct usb_interface *udev, const struct usb_device_id *prod)
dev->hard_mtu = net->mtu + net->hard_header_len;
#if 0
-// dma_supported() is deeply broken on almost all architectures
- // possible with some EHCI controllers
- if (dma_supported (&udev->dev, DMA_BIT_MASK(64)))
+ /* dma_supported() is deeply broken on almost all architectures */
+ /* possible with some EHCI controllers */
+ if (dma_supported(&udev->dev, DMA_BIT_MASK(64)))
net->features |= NETIF_F_HIGHDMA;
#endif
-#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,30)
+#if LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 30)
net->open = axusbnet_open,
net->stop = axusbnet_stop,
net->hard_start_xmit = axusbnet_start_xmit,
@@ -1276,9 +1288,9 @@ axusbnet_probe (struct usb_interface *udev, const struct usb_device_id *prod)
net->watchdog_timeo = TX_TIMEOUT_JIFFIES;
net->ethtool_ops = &axusbnet_ethtool_ops;
- // allow device-specific bind/init procedures
- // NOTE net->name still not usable ...
- status = info->bind (dev, udev);
+ /* allow device-specific bind/init procedures */
+ /* NOTE net->name still not usable ... */
+ status = info->bind(dev, udev);
if (status < 0) {
deverr(dev, "Binding device failed: %d", status);
goto out1;
@@ -1288,39 +1300,39 @@ axusbnet_probe (struct usb_interface *udev, const struct usb_device_id *prod)
if (net->mtu > (dev->hard_mtu - net->hard_header_len))
net->mtu = dev->hard_mtu - net->hard_header_len;
- status = init_status (dev, udev);
+ status = init_status(dev, udev);
if (status < 0)
goto out3;
if (!dev->rx_urb_size)
dev->rx_urb_size = dev->hard_mtu;
- dev->maxpacket = usb_maxpacket (dev->udev, dev->out, 1);
+ dev->maxpacket = usb_maxpacket(dev->udev, dev->out, 1);
SET_NETDEV_DEV(net, &udev->dev);
- status = register_netdev (net);
+ status = register_netdev(net);
if (status) {
deverr(dev, "net device registration failed: %d", status);
goto out3;
}
- if (netif_msg_probe (dev))
- devinfo (dev, "register '%s' at usb-%s-%s, %s, %pM",
+ if (netif_msg_probe(dev))
+ devinfo(dev, "register '%s' at usb-%s-%s, %s, %pM",
udev->dev.driver->name,
xdev->bus->bus_name, xdev->devpath,
dev->driver_info->description,
net->dev_addr);
- // ok, it's ready to go.
- usb_set_intfdata (udev, dev);
+ /* ok, it's ready to go. */
+ usb_set_intfdata(udev, dev);
- // start as if the link is up
- netif_device_attach (net);
+ /* start as if the link is up */
+ netif_device_attach(net);
return 0;
out3:
if (info->unbind)
- info->unbind (dev, udev);
+ info->unbind(dev, udev);
out1:
free_netdev(net);
out:
@@ -1335,40 +1347,52 @@ out:
* resume only when the last interface is resumed
*/
-static int axusbnet_suspend (struct usb_interface *intf,
-#if LINUX_VERSION_CODE > KERNEL_VERSION(2,6,10)
+static int axusbnet_suspend(struct usb_interface *intf,
+#if LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 10)
pm_message_t message)
#else
u32 message)
#endif
{
- struct usbnet *dev = usb_get_intfdata(intf);
+ struct usbnet *dev = usb_get_intfdata(intf);
if (!dev->suspend_count++) {
/*
* accelerate emptying of the rx and queues, to avoid
* having everything error out.
*/
- netif_device_detach (dev->net);
- (void) unlink_urbs (dev, &dev->rxq);
- (void) unlink_urbs (dev, &dev->txq);
+ netif_device_detach(dev->net);
+ (void) unlink_urbs(dev, &dev->rxq);
+ (void) unlink_urbs(dev, &dev->txq);
+ usb_kill_urb(dev->interrupt);
/*
* reattach so runtime management can use and
* wake the device
*/
- netif_device_attach (dev->net);
+ netif_device_attach(dev->net);
}
return 0;
}
static int
-axusbnet_resume (struct usb_interface *intf)
+axusbnet_resume(struct usb_interface *intf)
{
- struct usbnet *dev = usb_get_intfdata(intf);
+ struct usbnet *dev = usb_get_intfdata(intf);
+ int retval = 0;
if (!--dev->suspend_count)
- tasklet_schedule (&dev->bh);
+ tasklet_schedule(&dev->bh);
- return 0;
+ retval = init_status(dev, intf);
+ if (retval < 0)
+ return retval;
+
+ if (dev->interrupt) {
+ retval = usb_submit_urb(dev->interrupt, GFP_KERNEL);
+ if (retval < 0 && netif_msg_ifup(dev))
+ deverr(dev, "intr submit %d", retval);
+ }
+
+ return retval;
}