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path: root/drivers/net/irda/irda-usb.c
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Diffstat (limited to 'drivers/net/irda/irda-usb.c')
-rw-r--r--drivers/net/irda/irda-usb.c731
1 files changed, 533 insertions, 198 deletions
diff --git a/drivers/net/irda/irda-usb.c b/drivers/net/irda/irda-usb.c
index fa176ffb4ad..925b78cc979 100644
--- a/drivers/net/irda/irda-usb.c
+++ b/drivers/net/irda/irda-usb.c
@@ -1,7 +1,7 @@
/*****************************************************************************
*
* Filename: irda-usb.c
- * Version: 0.9b
+ * Version: 0.10
* Description: IrDA-USB Driver
* Status: Experimental
* Author: Dag Brattli <dag@brattli.net>
@@ -9,6 +9,9 @@
* Copyright (C) 2000, Roman Weissgaerber <weissg@vienna.at>
* Copyright (C) 2001, Dag Brattli <dag@brattli.net>
* Copyright (C) 2001, Jean Tourrilhes <jt@hpl.hp.com>
+ * Copyright (C) 2004, SigmaTel, Inc. <irquality@sigmatel.com>
+ * Copyright (C) 2005, Milan Beno <beno@pobox.sk>
+ * Copyright (C) 2006, Nick Fedchik <nick@fedchik.org.ua>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
@@ -55,12 +58,12 @@
#include <linux/moduleparam.h>
#include <linux/kernel.h>
#include <linux/types.h>
-#include <linux/init.h>
#include <linux/skbuff.h>
#include <linux/netdevice.h>
#include <linux/slab.h>
#include <linux/rtnetlink.h>
#include <linux/usb.h>
+#include <linux/firmware.h>
#include "irda-usb.h"
@@ -78,8 +81,12 @@ static struct usb_device_id dongles[] = {
{ USB_DEVICE(0x50f, 0x180), .driver_info = IUC_SPEED_BUG | IUC_NO_WINDOW },
/* Extended Systems, Inc., XTNDAccess IrDA USB (ESI-9685) */
{ USB_DEVICE(0x8e9, 0x100), .driver_info = IUC_SPEED_BUG | IUC_NO_WINDOW },
+ /* SigmaTel STIR4210/4220/4116 USB IrDA (VFIR) Bridge */
+ { USB_DEVICE(0x66f, 0x4210), .driver_info = IUC_STIR421X | IUC_SPEED_BUG },
+ { USB_DEVICE(0x66f, 0x4220), .driver_info = IUC_STIR421X | IUC_SPEED_BUG },
+ { USB_DEVICE(0x66f, 0x4116), .driver_info = IUC_STIR421X | IUC_SPEED_BUG },
{ .match_flags = USB_DEVICE_ID_MATCH_INT_CLASS |
- USB_DEVICE_ID_MATCH_INT_SUBCLASS,
+ USB_DEVICE_ID_MATCH_INT_SUBCLASS,
.bInterfaceClass = USB_CLASS_APP_SPEC,
.bInterfaceSubClass = USB_CLASS_IRDA,
.driver_info = IUC_DEFAULT, },
@@ -99,20 +106,22 @@ MODULE_DEVICE_TABLE(usb, dongles);
/*------------------------------------------------------------------*/
+static void irda_usb_init_qos(struct irda_usb_cb *self) ;
static struct irda_class_desc *irda_usb_find_class_desc(struct usb_interface *intf);
static void irda_usb_disconnect(struct usb_interface *intf);
static void irda_usb_change_speed_xbofs(struct irda_usb_cb *self);
-static int irda_usb_hard_xmit(struct sk_buff *skb, struct net_device *dev);
+static netdev_tx_t irda_usb_hard_xmit(struct sk_buff *skb,
+ struct net_device *dev);
static int irda_usb_open(struct irda_usb_cb *self);
static void irda_usb_close(struct irda_usb_cb *self);
-static void speed_bulk_callback(struct urb *urb, struct pt_regs *regs);
-static void write_bulk_callback(struct urb *urb, struct pt_regs *regs);
-static void irda_usb_receive(struct urb *urb, struct pt_regs *regs);
+static void speed_bulk_callback(struct urb *urb);
+static void write_bulk_callback(struct urb *urb);
+static void irda_usb_receive(struct urb *urb);
+static void irda_usb_rx_defer_expired(unsigned long data);
static int irda_usb_net_open(struct net_device *dev);
static int irda_usb_net_close(struct net_device *dev);
static int irda_usb_net_ioctl(struct net_device *dev, struct ifreq *rq, int cmd);
static void irda_usb_net_timeout(struct net_device *dev);
-static struct net_device_stats *irda_usb_net_get_stats(struct net_device *dev);
/************************ TRANSMIT ROUTINES ************************/
/*
@@ -140,7 +149,24 @@ static void irda_usb_build_header(struct irda_usb_cb *self,
__u8 *header,
int force)
{
- /* Set the negotiated link speed */
+ /* Here we check if we have an STIR421x chip,
+ * and if either speed or xbofs (or both) needs
+ * to be changed.
+ */
+ if (self->capability & IUC_STIR421X &&
+ ((self->new_speed != -1) || (self->new_xbofs != -1))) {
+
+ /* With STIR421x, speed and xBOFs must be set at the same
+ * time, even if only one of them changes.
+ */
+ if (self->new_speed == -1)
+ self->new_speed = self->speed ;
+
+ if (self->new_xbofs == -1)
+ self->new_xbofs = self->xbofs ;
+ }
+
+ /* Set the link speed */
if (self->new_speed != -1) {
/* Hum... Ugly hack :-(
* Some device are not compliant with the spec and change
@@ -150,12 +176,12 @@ static void irda_usb_build_header(struct irda_usb_cb *self,
(!force) && (self->speed != -1)) {
/* No speed and xbofs change here
* (we'll do it later in the write callback) */
- IRDA_DEBUG(2, "%s(), not changing speed yet\n", __FUNCTION__);
+ IRDA_DEBUG(2, "%s(), not changing speed yet\n", __func__);
*header = 0;
return;
}
- IRDA_DEBUG(2, "%s(), changing speed to %d\n", __FUNCTION__, self->new_speed);
+ IRDA_DEBUG(2, "%s(), changing speed to %d\n", __func__, self->new_speed);
self->speed = self->new_speed;
/* We will do ` self->new_speed = -1; ' in the completion
* handler just in case the current URB fail - Jean II */
@@ -190,14 +216,18 @@ static void irda_usb_build_header(struct irda_usb_cb *self,
*header = SPEED_4000000;
self->new_xbofs = 0;
break;
- }
+ case 16000000:
+ *header = SPEED_16000000;
+ self->new_xbofs = 0;
+ break;
+ }
} else
/* No change */
*header = 0;
/* Set the negotiated additional XBOFS */
if (self->new_xbofs != -1) {
- IRDA_DEBUG(2, "%s(), changing xbofs to %d\n", __FUNCTION__, self->new_xbofs);
+ IRDA_DEBUG(2, "%s(), changing xbofs to %d\n", __func__, self->new_xbofs);
self->xbofs = self->new_xbofs;
/* We will do ` self->new_xbofs = -1; ' in the completion
* handler just in case the current URB fail - Jean II */
@@ -234,6 +264,32 @@ static void irda_usb_build_header(struct irda_usb_cb *self,
}
}
+/*
+* calculate turnaround time for SigmaTel header
+*/
+static __u8 get_turnaround_time(struct sk_buff *skb)
+{
+ int turnaround_time = irda_get_mtt(skb);
+
+ if ( turnaround_time == 0 )
+ return 0;
+ else if ( turnaround_time <= 10 )
+ return 1;
+ else if ( turnaround_time <= 50 )
+ return 2;
+ else if ( turnaround_time <= 100 )
+ return 3;
+ else if ( turnaround_time <= 500 )
+ return 4;
+ else if ( turnaround_time <= 1000 )
+ return 5;
+ else if ( turnaround_time <= 5000 )
+ return 6;
+ else
+ return 7;
+}
+
+
/*------------------------------------------------------------------*/
/*
* Send a command to change the speed of the dongle
@@ -245,13 +301,13 @@ static void irda_usb_change_speed_xbofs(struct irda_usb_cb *self)
struct urb *urb;
int ret;
- IRDA_DEBUG(2, "%s(), speed=%d, xbofs=%d\n", __FUNCTION__,
+ IRDA_DEBUG(2, "%s(), speed=%d, xbofs=%d\n", __func__,
self->new_speed, self->new_xbofs);
/* Grab the speed URB */
urb = self->speed_urb;
if (urb->status != 0) {
- IRDA_WARNING("%s(), URB still in use!\n", __FUNCTION__);
+ IRDA_WARNING("%s(), URB still in use!\n", __func__);
return;
}
@@ -261,17 +317,23 @@ static void irda_usb_change_speed_xbofs(struct irda_usb_cb *self)
/* Set the new speed and xbofs in this fake frame */
irda_usb_build_header(self, frame, 1);
+ if (self->capability & IUC_STIR421X) {
+ if (frame[0] == 0) return ; // do nothing if no change
+ frame[1] = 0; // other parameters don't change here
+ frame[2] = 0;
+ }
+
/* Submit the 0 length IrDA frame to trigger new speed settings */
usb_fill_bulk_urb(urb, self->usbdev,
usb_sndbulkpipe(self->usbdev, self->bulk_out_ep),
frame, IRDA_USB_SPEED_MTU,
speed_bulk_callback, self);
- urb->transfer_buffer_length = USB_IRDA_HEADER;
+ urb->transfer_buffer_length = self->header_length;
urb->transfer_flags = 0;
/* Irq disabled -> GFP_ATOMIC */
if ((ret = usb_submit_urb(urb, GFP_ATOMIC))) {
- IRDA_WARNING("%s(), failed Speed URB\n", __FUNCTION__);
+ IRDA_WARNING("%s(), failed Speed URB\n", __func__);
}
}
@@ -280,11 +342,11 @@ static void irda_usb_change_speed_xbofs(struct irda_usb_cb *self)
* Speed URB callback
* Now, we can only get called for the speed URB.
*/
-static void speed_bulk_callback(struct urb *urb, struct pt_regs *regs)
+static void speed_bulk_callback(struct urb *urb)
{
struct irda_usb_cb *self = urb->context;
- IRDA_DEBUG(2, "%s()\n", __FUNCTION__);
+ IRDA_DEBUG(2, "%s()\n", __func__);
/* We should always have a context */
IRDA_ASSERT(self != NULL, return;);
@@ -294,7 +356,7 @@ static void speed_bulk_callback(struct urb *urb, struct pt_regs *regs)
/* Check for timeout and other USB nasties */
if (urb->status != 0) {
/* I get a lot of -ECONNABORTED = -103 here - Jean II */
- IRDA_DEBUG(0, "%s(), URB complete status %d, transfer_flags 0x%04X\n", __FUNCTION__, urb->status, urb->transfer_flags);
+ IRDA_DEBUG(0, "%s(), URB complete status %d, transfer_flags 0x%04X\n", __func__, urb->status, urb->transfer_flags);
/* Don't do anything here, that might confuse the USB layer.
* Instead, we will wait for irda_usb_net_timeout(), the
@@ -307,7 +369,7 @@ static void speed_bulk_callback(struct urb *urb, struct pt_regs *regs)
/* urb is now available */
//urb->status = 0; -> tested above
- /* New speed and xbof is now commited in hardware */
+ /* New speed and xbof is now committed in hardware */
self->new_speed = -1;
self->new_xbofs = -1;
@@ -319,17 +381,17 @@ static void speed_bulk_callback(struct urb *urb, struct pt_regs *regs)
/*
* Send an IrDA frame to the USB dongle (for transmission)
*/
-static int irda_usb_hard_xmit(struct sk_buff *skb, struct net_device *netdev)
+static netdev_tx_t irda_usb_hard_xmit(struct sk_buff *skb,
+ struct net_device *netdev)
{
- struct irda_usb_cb *self = netdev->priv;
+ struct irda_usb_cb *self = netdev_priv(netdev);
struct urb *urb = self->tx_urb;
unsigned long flags;
s32 speed;
s16 xbofs;
int res, mtt;
- int err = 1; /* Failed */
- IRDA_DEBUG(4, "%s() on %s\n", __FUNCTION__, netdev->name);
+ IRDA_DEBUG(4, "%s() on %s\n", __func__, netdev->name);
netif_stop_queue(netdev);
@@ -340,7 +402,7 @@ static int irda_usb_hard_xmit(struct sk_buff *skb, struct net_device *netdev)
* We need to check self->present under the spinlock because
* of irda_usb_disconnect() is synchronous - Jean II */
if (!self->present) {
- IRDA_DEBUG(0, "%s(), Device is gone...\n", __FUNCTION__);
+ IRDA_DEBUG(0, "%s(), Device is gone...\n", __func__);
goto drop;
}
@@ -368,39 +430,45 @@ static int irda_usb_hard_xmit(struct sk_buff *skb, struct net_device *netdev)
irda_usb_change_speed_xbofs(self);
netdev->trans_start = jiffies;
/* Will netif_wake_queue() in callback */
- err = 0; /* No error */
goto drop;
}
}
if (urb->status != 0) {
- IRDA_WARNING("%s(), URB still in use!\n", __FUNCTION__);
+ IRDA_WARNING("%s(), URB still in use!\n", __func__);
goto drop;
}
- /* Make sure there is room for IrDA-USB header. The actual
- * allocation will be done lower in skb_push().
- * Also, we don't use directly skb_cow(), because it require
- * headroom >= 16, which force unnecessary copies - Jean II */
- if (skb_headroom(skb) < USB_IRDA_HEADER) {
- IRDA_DEBUG(0, "%s(), Insuficient skb headroom.\n", __FUNCTION__);
- if (skb_cow(skb, USB_IRDA_HEADER)) {
- IRDA_WARNING("%s(), failed skb_cow() !!!\n", __FUNCTION__);
- goto drop;
- }
- }
+ skb_copy_from_linear_data(skb, self->tx_buff + self->header_length, skb->len);
/* Change setting for next frame */
- irda_usb_build_header(self, skb_push(skb, USB_IRDA_HEADER), 0);
+ if (self->capability & IUC_STIR421X) {
+ __u8 turnaround_time;
+ __u8* frame = self->tx_buff;
+ turnaround_time = get_turnaround_time( skb );
+ irda_usb_build_header(self, frame, 0);
+ frame[2] = turnaround_time;
+ if ((skb->len != 0) &&
+ ((skb->len % 128) == 0) &&
+ ((skb->len % 512) != 0)) {
+ /* add extra byte for special SigmaTel feature */
+ frame[1] = 1;
+ skb_put(skb, 1);
+ } else {
+ frame[1] = 0;
+ }
+ } else {
+ irda_usb_build_header(self, self->tx_buff, 0);
+ }
/* FIXME: Make macro out of this one */
((struct irda_skb_cb *)skb->cb)->context = self;
- usb_fill_bulk_urb(urb, self->usbdev,
+ usb_fill_bulk_urb(urb, self->usbdev,
usb_sndbulkpipe(self->usbdev, self->bulk_out_ep),
- skb->data, IRDA_SKB_MAX_MTU,
+ self->tx_buff, skb->len + self->header_length,
write_bulk_callback, skb);
- urb->transfer_buffer_length = skb->len;
+
/* This flag (URB_ZERO_PACKET) indicates that what we send is not
* a continuous stream of data but separate packets.
* In this case, the USB layer will insert an empty USB frame (TD)
@@ -454,39 +522,39 @@ static int irda_usb_hard_xmit(struct sk_buff *skb, struct net_device *netdev)
/* Ask USB to send the packet - Irq disabled -> GFP_ATOMIC */
if ((res = usb_submit_urb(urb, GFP_ATOMIC))) {
- IRDA_WARNING("%s(), failed Tx URB\n", __FUNCTION__);
- self->stats.tx_errors++;
+ IRDA_WARNING("%s(), failed Tx URB\n", __func__);
+ netdev->stats.tx_errors++;
/* Let USB recover : We will catch that in the watchdog */
/*netif_start_queue(netdev);*/
} else {
/* Increment packet stats */
- self->stats.tx_packets++;
- self->stats.tx_bytes += skb->len;
+ netdev->stats.tx_packets++;
+ netdev->stats.tx_bytes += skb->len;
netdev->trans_start = jiffies;
}
spin_unlock_irqrestore(&self->lock, flags);
- return 0;
+ return NETDEV_TX_OK;
drop:
/* Drop silently the skb and exit */
dev_kfree_skb(skb);
spin_unlock_irqrestore(&self->lock, flags);
- return err; /* Usually 1 */
+ return NETDEV_TX_OK;
}
/*------------------------------------------------------------------*/
/*
* Note : this function will be called only for tx_urb...
*/
-static void write_bulk_callback(struct urb *urb, struct pt_regs *regs)
+static void write_bulk_callback(struct urb *urb)
{
unsigned long flags;
struct sk_buff *skb = urb->context;
struct irda_usb_cb *self = ((struct irda_skb_cb *) skb->cb)->context;
- IRDA_DEBUG(2, "%s()\n", __FUNCTION__);
+ IRDA_DEBUG(2, "%s()\n", __func__);
/* We should always have a context */
IRDA_ASSERT(self != NULL, return;);
@@ -500,7 +568,7 @@ static void write_bulk_callback(struct urb *urb, struct pt_regs *regs)
/* Check for timeout and other USB nasties */
if (urb->status != 0) {
/* I get a lot of -ECONNABORTED = -103 here - Jean II */
- IRDA_DEBUG(0, "%s(), URB complete status %d, transfer_flags 0x%04X\n", __FUNCTION__, urb->status, urb->transfer_flags);
+ IRDA_DEBUG(0, "%s(), URB complete status %d, transfer_flags 0x%04X\n", __func__, urb->status, urb->transfer_flags);
/* Don't do anything here, that might confuse the USB layer,
* and we could go in recursion and blow the kernel stack...
@@ -519,7 +587,7 @@ static void write_bulk_callback(struct urb *urb, struct pt_regs *regs)
/* If the network is closed, stop everything */
if ((!self->netopen) || (!self->present)) {
- IRDA_DEBUG(0, "%s(), Network is gone...\n", __FUNCTION__);
+ IRDA_DEBUG(0, "%s(), Network is gone...\n", __func__);
spin_unlock_irqrestore(&self->lock, flags);
return;
}
@@ -530,10 +598,10 @@ static void write_bulk_callback(struct urb *urb, struct pt_regs *regs)
(self->new_xbofs != self->xbofs)) {
/* We haven't changed speed yet (because of
* IUC_SPEED_BUG), so do it now - Jean II */
- IRDA_DEBUG(1, "%s(), Changing speed now...\n", __FUNCTION__);
+ IRDA_DEBUG(1, "%s(), Changing speed now...\n", __func__);
irda_usb_change_speed_xbofs(self);
} else {
- /* New speed and xbof is now commited in hardware */
+ /* New speed and xbof is now committed in hardware */
self->new_speed = -1;
self->new_xbofs = -1;
/* Done, waiting for next packet */
@@ -558,11 +626,11 @@ static void write_bulk_callback(struct urb *urb, struct pt_regs *regs)
static void irda_usb_net_timeout(struct net_device *netdev)
{
unsigned long flags;
- struct irda_usb_cb *self = netdev->priv;
+ struct irda_usb_cb *self = netdev_priv(netdev);
struct urb *urb;
int done = 0; /* If we have made any progress */
- IRDA_DEBUG(0, "%s(), Network layer thinks we timed out!\n", __FUNCTION__);
+ IRDA_DEBUG(0, "%s(), Network layer thinks we timed out!\n", __func__);
IRDA_ASSERT(self != NULL, return;);
/* Protect us from USB callbacks, net Tx and else. */
@@ -570,7 +638,7 @@ static void irda_usb_net_timeout(struct net_device *netdev)
/* self->present *MUST* be read under spinlock */
if (!self->present) {
- IRDA_WARNING("%s(), device not present!\n", __FUNCTION__);
+ IRDA_WARNING("%s(), device not present!\n", __func__);
netif_stop_queue(netdev);
spin_unlock_irqrestore(&self->lock, flags);
return;
@@ -589,10 +657,8 @@ static void irda_usb_net_timeout(struct net_device *netdev)
* Jean II */
done = 1;
break;
- case -ECONNABORTED: /* -103 */
- case -ECONNRESET: /* -104 */
- case -ETIMEDOUT: /* -110 */
- case -ENOENT: /* -2 (urb unlinked by us) */
+ case -ECONNRESET:
+ case -ENOENT: /* urb unlinked by us */
default: /* ??? - Play safe */
urb->status = 0;
netif_wake_queue(self->netdev);
@@ -609,7 +675,7 @@ static void irda_usb_net_timeout(struct net_device *netdev)
IRDA_DEBUG(0, "%s: Tx timed out, urb->status=%d, urb->transfer_flags=0x%04X\n", netdev->name, urb->status, urb->transfer_flags);
/* Increase error count */
- self->stats.tx_errors++;
+ netdev->stats.tx_errors++;
#ifdef IU_BUG_KICK_TIMEOUT
/* Can't be a bad idea to reset the speed ;-) - Jean II */
@@ -630,10 +696,8 @@ static void irda_usb_net_timeout(struct net_device *netdev)
* Jean II */
done = 1;
break;
- case -ECONNABORTED: /* -103 */
- case -ECONNRESET: /* -104 */
- case -ETIMEDOUT: /* -110 */
- case -ENOENT: /* -2 (urb unlinked by us) */
+ case -ECONNRESET:
+ case -ENOENT: /* urb unlinked by us */
default: /* ??? - Play safe */
if(skb != NULL) {
dev_kfree_skb_any(skb);
@@ -677,6 +741,12 @@ static void irda_usb_net_timeout(struct net_device *netdev)
* on the interrupt pipe and hang the Rx URB only when an interrupt is
* received.
* Jean II
+ *
+ * Note : don't read the above as what we are currently doing, but as
+ * something we could do with KC dongle. Also don't forget that the
+ * interrupt pipe is not part of the original standard, so this would
+ * need to be optional...
+ * Jean II
*/
/*------------------------------------------------------------------*/
@@ -691,7 +761,7 @@ static void irda_usb_submit(struct irda_usb_cb *self, struct sk_buff *skb, struc
struct irda_skb_cb *cb;
int ret;
- IRDA_DEBUG(2, "%s()\n", __FUNCTION__);
+ IRDA_DEBUG(2, "%s()\n", __func__);
/* This should never happen */
IRDA_ASSERT(skb != NULL, return;);
@@ -704,10 +774,8 @@ static void irda_usb_submit(struct irda_usb_cb *self, struct sk_buff *skb, struc
/* Reinitialize URB */
usb_fill_bulk_urb(urb, self->usbdev,
usb_rcvbulkpipe(self->usbdev, self->bulk_in_ep),
- skb->data, skb->truesize,
+ skb->data, IRDA_SKB_MAX_MTU,
irda_usb_receive, skb);
- /* Note : unlink *must* be synchronous because of the code in
- * irda_usb_net_close() -> free the skb - Jean II */
urb->status = 0;
/* Can be called from irda_usb_receive (irq handler) -> GFP_ATOMIC */
@@ -716,7 +784,7 @@ static void irda_usb_submit(struct irda_usb_cb *self, struct sk_buff *skb, struc
/* If this ever happen, we are in deep s***.
* Basically, the Rx path will stop... */
IRDA_WARNING("%s(), Failed to submit Rx URB %d\n",
- __FUNCTION__, ret);
+ __func__, ret);
}
}
@@ -727,16 +795,17 @@ static void irda_usb_submit(struct irda_usb_cb *self, struct sk_buff *skb, struc
* Called by the USB subsystem when a frame has been received
*
*/
-static void irda_usb_receive(struct urb *urb, struct pt_regs *regs)
+static void irda_usb_receive(struct urb *urb)
{
struct sk_buff *skb = (struct sk_buff *) urb->context;
struct irda_usb_cb *self;
struct irda_skb_cb *cb;
struct sk_buff *newskb;
struct sk_buff *dataskb;
- int docopy;
+ struct urb *next_urb;
+ unsigned int len, docopy;
- IRDA_DEBUG(2, "%s(), len=%d\n", __FUNCTION__, urb->actual_length);
+ IRDA_DEBUG(2, "%s(), len=%d\n", __func__, urb->actual_length);
/* Find ourselves */
cb = (struct irda_skb_cb *) skb->cb;
@@ -746,7 +815,7 @@ static void irda_usb_receive(struct urb *urb, struct pt_regs *regs)
/* If the network is closed or the device gone, stop everything */
if ((!self->netopen) || (!self->present)) {
- IRDA_DEBUG(0, "%s(), Network is gone!\n", __FUNCTION__);
+ IRDA_DEBUG(0, "%s(), Network is gone!\n", __func__);
/* Don't re-submit the URB : will stall the Rx path */
return;
}
@@ -755,25 +824,42 @@ static void irda_usb_receive(struct urb *urb, struct pt_regs *regs)
if (urb->status != 0) {
switch (urb->status) {
case -EILSEQ:
- self->stats.rx_errors++;
- self->stats.rx_crc_errors++;
- break;
- case -ECONNRESET: /* -104 */
- IRDA_DEBUG(0, "%s(), Connection Reset (-104), transfer_flags 0x%04X \n", __FUNCTION__, urb->transfer_flags);
+ self->netdev->stats.rx_crc_errors++;
+ /* Also precursor to a hot-unplug on UHCI. */
+ /* Fallthrough... */
+ case -ECONNRESET:
+ /* Random error, if I remember correctly */
/* uhci_cleanup_unlink() is going to kill the Rx
* URB just after we return. No problem, at this
* point the URB will be idle ;-) - Jean II */
- break;
+ case -ESHUTDOWN:
+ /* That's usually a hot-unplug. Submit will fail... */
+ case -ETIME:
+ /* Usually precursor to a hot-unplug on OHCI. */
default:
- IRDA_DEBUG(0, "%s(), RX status %d,transfer_flags 0x%04X \n", __FUNCTION__, urb->status, urb->transfer_flags);
+ self->netdev->stats.rx_errors++;
+ IRDA_DEBUG(0, "%s(), RX status %d, transfer_flags 0x%04X\n", __func__, urb->status, urb->transfer_flags);
break;
}
- goto done;
+ /* If we received an error, we don't want to resubmit the
+ * Rx URB straight away but to give the USB layer a little
+ * bit of breathing room.
+ * We are in the USB thread context, therefore there is a
+ * danger of recursion (new URB we submit fails, we come
+ * back here).
+ * With recent USB stack (2.6.15+), I'm seeing that on
+ * hot unplug of the dongle...
+ * Lowest effective timer is 10ms...
+ * Jean II */
+ self->rx_defer_timer.function = irda_usb_rx_defer_expired;
+ self->rx_defer_timer.data = (unsigned long) urb;
+ mod_timer(&self->rx_defer_timer, jiffies + (10 * HZ / 1000));
+ return;
}
/* Check for empty frames */
- if (urb->actual_length <= USB_IRDA_HEADER) {
- IRDA_WARNING("%s(), empty frame!\n", __FUNCTION__);
+ if (urb->actual_length <= self->header_length) {
+ IRDA_WARNING("%s(), empty frame!\n", __func__);
goto done;
}
@@ -793,9 +879,16 @@ static void irda_usb_receive(struct urb *urb, struct pt_regs *regs)
docopy = (urb->actual_length < IRDA_RX_COPY_THRESHOLD);
/* Allocate a new skb */
- newskb = dev_alloc_skb(docopy ? urb->actual_length : IRDA_SKB_MAX_MTU);
+ if (self->capability & IUC_STIR421X)
+ newskb = dev_alloc_skb(docopy ? urb->actual_length :
+ IRDA_SKB_MAX_MTU +
+ USB_IRDA_STIR421X_HEADER);
+ else
+ newskb = dev_alloc_skb(docopy ? urb->actual_length :
+ IRDA_SKB_MAX_MTU);
+
if (!newskb) {
- self->stats.rx_dropped++;
+ self->netdev->stats.rx_dropped++;
/* We could deliver the current skb, but this would stall
* the Rx path. Better drop the packet... Jean II */
goto done;
@@ -807,7 +900,7 @@ static void irda_usb_receive(struct urb *urb, struct pt_regs *regs)
if(docopy) {
/* Copy packet, so we can recycle the original */
- memcpy(newskb->data, skb->data, urb->actual_length);
+ skb_copy_from_linear_data(skb, newskb->data, urb->actual_length);
/* Deliver this new skb */
dataskb = newskb;
/* And hook the old skb to the URB
@@ -822,18 +915,18 @@ static void irda_usb_receive(struct urb *urb, struct pt_regs *regs)
/* Set proper length on skb & remove USB-IrDA header */
skb_put(dataskb, urb->actual_length);
- skb_pull(dataskb, USB_IRDA_HEADER);
+ skb_pull(dataskb, self->header_length);
/* Ask the networking layer to queue the packet for the IrDA stack */
dataskb->dev = self->netdev;
- dataskb->mac.raw = dataskb->data;
+ skb_reset_mac_header(dataskb);
dataskb->protocol = htons(ETH_P_IRDA);
+ len = dataskb->len;
netif_rx(dataskb);
/* Keep stats up to date */
- self->stats.rx_bytes += dataskb->len;
- self->stats.rx_packets++;
- self->netdev->last_rx = jiffies;
+ self->netdev->stats.rx_bytes += len;
+ self->netdev->stats.rx_packets++;
done:
/* Note : at this point, the URB we've just received (urb)
@@ -845,13 +938,45 @@ done:
* idle slot....
* Jean II */
/* Note : with this scheme, we could submit the idle URB before
- * processing the Rx URB. Another time... Jean II */
+ * processing the Rx URB. I don't think it would buy us anything as
+ * we are running in the USB thread context. Jean II */
+ next_urb = self->idle_rx_urb;
- /* Submit the idle URB to replace the URB we've just received */
- irda_usb_submit(self, skb, self->idle_rx_urb);
/* Recycle Rx URB : Now, the idle URB is the present one */
urb->context = NULL;
self->idle_rx_urb = urb;
+
+ /* Submit the idle URB to replace the URB we've just received.
+ * Do it last to avoid race conditions... Jean II */
+ irda_usb_submit(self, skb, next_urb);
+}
+
+/*------------------------------------------------------------------*/
+/*
+ * In case of errors, we want the USB layer to have time to recover.
+ * Now, it is time to resubmit ouur Rx URB...
+ */
+static void irda_usb_rx_defer_expired(unsigned long data)
+{
+ struct urb *urb = (struct urb *) data;
+ struct sk_buff *skb = (struct sk_buff *) urb->context;
+ struct irda_usb_cb *self;
+ struct irda_skb_cb *cb;
+ struct urb *next_urb;
+
+ IRDA_DEBUG(2, "%s()\n", __func__);
+
+ /* Find ourselves */
+ cb = (struct irda_skb_cb *) skb->cb;
+ IRDA_ASSERT(cb != NULL, return;);
+ self = (struct irda_usb_cb *) cb->context;
+ IRDA_ASSERT(self != NULL, return;);
+
+ /* Same stuff as when Rx is done, see above... */
+ next_urb = self->idle_rx_urb;
+ urb->context = NULL;
+ self->idle_rx_urb = urb;
+ irda_usb_submit(self, skb, next_urb);
}
/*------------------------------------------------------------------*/
@@ -881,6 +1006,145 @@ static int irda_usb_is_receiving(struct irda_usb_cb *self)
return 0; /* For now */
}
+#define STIR421X_PATCH_PRODUCT_VER "Product Version: "
+#define STIR421X_PATCH_STMP_TAG "STMP"
+#define STIR421X_PATCH_CODE_OFFSET 512 /* patch image starts before here */
+/* marks end of patch file header (PC DOS text file EOF character) */
+#define STIR421X_PATCH_END_OF_HDR_TAG 0x1A
+#define STIR421X_PATCH_BLOCK_SIZE 1023
+
+/*
+ * Function stir421x_fwupload (struct irda_usb_cb *self,
+ * unsigned char *patch,
+ * const unsigned int patch_len)
+ *
+ * Upload firmware code to SigmaTel 421X IRDA-USB dongle
+ */
+static int stir421x_fw_upload(struct irda_usb_cb *self,
+ const unsigned char *patch,
+ const unsigned int patch_len)
+{
+ int ret = -ENOMEM;
+ int actual_len = 0;
+ unsigned int i;
+ unsigned int block_size = 0;
+ unsigned char *patch_block;
+
+ patch_block = kzalloc(STIR421X_PATCH_BLOCK_SIZE, GFP_KERNEL);
+ if (patch_block == NULL)
+ return -ENOMEM;
+
+ /* break up patch into 1023-byte sections */
+ for (i = 0; i < patch_len; i += block_size) {
+ block_size = patch_len - i;
+
+ if (block_size > STIR421X_PATCH_BLOCK_SIZE)
+ block_size = STIR421X_PATCH_BLOCK_SIZE;
+
+ /* upload the patch section */
+ memcpy(patch_block, patch + i, block_size);
+
+ ret = usb_bulk_msg(self->usbdev,
+ usb_sndbulkpipe(self->usbdev,
+ self->bulk_out_ep),
+ patch_block, block_size,
+ &actual_len, msecs_to_jiffies(500));
+ IRDA_DEBUG(3,"%s(): Bulk send %u bytes, ret=%d\n",
+ __func__, actual_len, ret);
+
+ if (ret < 0)
+ break;
+
+ mdelay(10);
+ }
+
+ kfree(patch_block);
+
+ return ret;
+ }
+
+/*
+ * Function stir421x_patch_device(struct irda_usb_cb *self)
+ *
+ * Get a firmware code from userspase using hotplug request_firmware() call
+ */
+static int stir421x_patch_device(struct irda_usb_cb *self)
+{
+ unsigned int i;
+ int ret;
+ char stir421x_fw_name[12];
+ const struct firmware *fw;
+ const unsigned char *fw_version_ptr; /* pointer to version string */
+ unsigned long fw_version = 0;
+
+ /*
+ * Known firmware patch file names for STIR421x dongles
+ * are "42101001.sb" or "42101002.sb"
+ */
+ sprintf(stir421x_fw_name, "4210%4X.sb",
+ self->usbdev->descriptor.bcdDevice);
+ ret = request_firmware(&fw, stir421x_fw_name, &self->usbdev->dev);
+ if (ret < 0)
+ return ret;
+
+ /* We get a patch from userspace */
+ IRDA_MESSAGE("%s(): Received firmware %s (%zu bytes)\n",
+ __func__, stir421x_fw_name, fw->size);
+
+ ret = -EINVAL;
+
+ /* Get the bcd product version */
+ if (!memcmp(fw->data, STIR421X_PATCH_PRODUCT_VER,
+ sizeof(STIR421X_PATCH_PRODUCT_VER) - 1)) {
+ fw_version_ptr = fw->data +
+ sizeof(STIR421X_PATCH_PRODUCT_VER) - 1;
+
+ /* Let's check if the product version is dotted */
+ if (fw_version_ptr[3] == '.' &&
+ fw_version_ptr[7] == '.') {
+ unsigned long major, minor, build;
+ major = simple_strtoul(fw_version_ptr, NULL, 10);
+ minor = simple_strtoul(fw_version_ptr + 4, NULL, 10);
+ build = simple_strtoul(fw_version_ptr + 8, NULL, 10);
+
+ fw_version = (major << 12)
+ + (minor << 8)
+ + ((build / 10) << 4)
+ + (build % 10);
+
+ IRDA_DEBUG(3, "%s(): Firmware Product version %ld\n",
+ __func__, fw_version);
+ }
+ }
+
+ if (self->usbdev->descriptor.bcdDevice == cpu_to_le16(fw_version)) {
+ /*
+ * If we're here, we've found a correct patch
+ * The actual image starts after the "STMP" keyword
+ * so forward to the firmware header tag
+ */
+ for (i = 0; i < fw->size && fw->data[i] !=
+ STIR421X_PATCH_END_OF_HDR_TAG; i++) ;
+ /* here we check for the out of buffer case */
+ if (i < STIR421X_PATCH_CODE_OFFSET && i < fw->size &&
+ STIR421X_PATCH_END_OF_HDR_TAG == fw->data[i]) {
+ if (!memcmp(fw->data + i + 1, STIR421X_PATCH_STMP_TAG,
+ sizeof(STIR421X_PATCH_STMP_TAG) - 1)) {
+
+ /* We can upload the patch to the target */
+ i += sizeof(STIR421X_PATCH_STMP_TAG);
+ ret = stir421x_fw_upload(self, &fw->data[i],
+ fw->size - i);
+ }
+ }
+ }
+
+ release_firmware(fw);
+
+ return ret;
+}
+
+
/********************** IRDA DEVICE CALLBACKS **********************/
/*
* Main calls from the IrDA/Network subsystem.
@@ -901,21 +1165,30 @@ static int irda_usb_is_receiving(struct irda_usb_cb *self)
static int irda_usb_net_open(struct net_device *netdev)
{
struct irda_usb_cb *self;
+ unsigned long flags;
char hwname[16];
int i;
- IRDA_DEBUG(1, "%s()\n", __FUNCTION__);
+ IRDA_DEBUG(1, "%s()\n", __func__);
IRDA_ASSERT(netdev != NULL, return -1;);
- self = (struct irda_usb_cb *) netdev->priv;
+ self = netdev_priv(netdev);
IRDA_ASSERT(self != NULL, return -1;);
+ spin_lock_irqsave(&self->lock, flags);
/* Can only open the device if it's there */
if(!self->present) {
- IRDA_WARNING("%s(), device not present!\n", __FUNCTION__);
+ spin_unlock_irqrestore(&self->lock, flags);
+ IRDA_WARNING("%s(), device not present!\n", __func__);
return -1;
}
+ if(self->needspatch) {
+ spin_unlock_irqrestore(&self->lock, flags);
+ IRDA_WARNING("%s(), device needs patch\n", __func__) ;
+ return -EIO ;
+ }
+
/* Initialise default speed and xbofs value
* (IrLAP will change that soon) */
self->speed = -1;
@@ -926,6 +1199,7 @@ static int irda_usb_net_open(struct net_device *netdev)
/* To do *before* submitting Rx urbs and starting net Tx queue
* Jean II */
self->netopen = 1;
+ spin_unlock_irqrestore(&self->lock, flags);
/*
* Now that everything should be initialized properly,
@@ -954,7 +1228,7 @@ static int irda_usb_net_open(struct net_device *netdev)
/* If this ever happen, we are in deep s***.
* Basically, we can't start the Rx path... */
IRDA_WARNING("%s(), Failed to allocate Rx skb\n",
- __FUNCTION__);
+ __func__);
return -1;
}
//skb_reserve(newskb, USB_IRDA_HEADER - 1);
@@ -977,10 +1251,10 @@ static int irda_usb_net_close(struct net_device *netdev)
struct irda_usb_cb *self;
int i;
- IRDA_DEBUG(1, "%s()\n", __FUNCTION__);
+ IRDA_DEBUG(1, "%s()\n", __func__);
IRDA_ASSERT(netdev != NULL, return -1;);
- self = (struct irda_usb_cb *) netdev->priv;
+ self = netdev_priv(netdev);
IRDA_ASSERT(self != NULL, return -1;);
/* Clear this flag *before* unlinking the urbs and *before*
@@ -990,8 +1264,11 @@ static int irda_usb_net_close(struct net_device *netdev)
/* Stop network Tx queue */
netif_stop_queue(netdev);
+ /* Kill defered Rx URB */
+ del_timer(&self->rx_defer_timer);
+
/* Deallocate all the Rx path buffers (URBs and skb) */
- for (i = 0; i < IU_MAX_RX_URBS; i++) {
+ for (i = 0; i < self->max_rx_urb; i++) {
struct urb *urb = self->rx_urb[i];
struct sk_buff *skb = (struct sk_buff *) urb->context;
/* Cancel the receive command */
@@ -1026,10 +1303,10 @@ static int irda_usb_net_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
int ret = 0;
IRDA_ASSERT(dev != NULL, return -1;);
- self = dev->priv;
+ self = netdev_priv(dev);
IRDA_ASSERT(self != NULL, return -1;);
- IRDA_DEBUG(2, "%s(), %s, (cmd=0x%X)\n", __FUNCTION__, dev->name, cmd);
+ IRDA_DEBUG(2, "%s(), %s, (cmd=0x%X)\n", __func__, dev->name, cmd);
switch (cmd) {
case SIOCSBANDWIDTH: /* Set bandwidth */
@@ -1063,14 +1340,6 @@ static int irda_usb_net_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
}
/*------------------------------------------------------------------*/
-/*
- * Get device stats (for /proc/net/dev and ifconfig)
- */
-static struct net_device_stats *irda_usb_net_get_stats(struct net_device *dev)
-{
- struct irda_usb_cb *self = dev->priv;
- return &self->stats;
-}
/********************* IRDA CONFIG SUBROUTINES *********************/
/*
@@ -1087,7 +1356,7 @@ static inline void irda_usb_init_qos(struct irda_usb_cb *self)
{
struct irda_class_desc *desc;
- IRDA_DEBUG(3, "%s()\n", __FUNCTION__);
+ IRDA_DEBUG(3, "%s()\n", __func__);
desc = self->irda_desc;
@@ -1104,7 +1373,7 @@ static inline void irda_usb_init_qos(struct irda_usb_cb *self)
self->qos.data_size.bits = desc->bmDataSize;
IRDA_DEBUG(0, "%s(), dongle says speed=0x%X, size=0x%X, window=0x%X, bofs=0x%X, turn=0x%X\n",
- __FUNCTION__, self->qos.baud_rate.bits, self->qos.data_size.bits, self->qos.window_size.bits, self->qos.additional_bofs.bits, self->qos.min_turn_time.bits);
+ __func__, self->qos.baud_rate.bits, self->qos.data_size.bits, self->qos.window_size.bits, self->qos.additional_bofs.bits, self->qos.min_turn_time.bits);
/* Don't always trust what the dongle tell us */
if(self->capability & IUC_SIR_ONLY)
@@ -1131,6 +1400,14 @@ static inline void irda_usb_init_qos(struct irda_usb_cb *self)
}
/*------------------------------------------------------------------*/
+static const struct net_device_ops irda_usb_netdev_ops = {
+ .ndo_open = irda_usb_net_open,
+ .ndo_stop = irda_usb_net_close,
+ .ndo_do_ioctl = irda_usb_net_ioctl,
+ .ndo_start_xmit = irda_usb_hard_xmit,
+ .ndo_tx_timeout = irda_usb_net_timeout,
+};
+
/*
* Initialise the network side of the irda-usb instance
* Called when a new USB instance is registered in irda_usb_probe()
@@ -1139,18 +1416,11 @@ static inline int irda_usb_open(struct irda_usb_cb *self)
{
struct net_device *netdev = self->netdev;
- IRDA_DEBUG(1, "%s()\n", __FUNCTION__);
+ IRDA_DEBUG(1, "%s()\n", __func__);
- irda_usb_init_qos(self);
+ netdev->netdev_ops = &irda_usb_netdev_ops;
- /* Override the network functions we need to use */
- netdev->hard_start_xmit = irda_usb_hard_xmit;
- netdev->tx_timeout = irda_usb_net_timeout;
- netdev->watchdog_timeo = 250*HZ/1000; /* 250 ms > USB timeout */
- netdev->open = irda_usb_net_open;
- netdev->stop = irda_usb_net_close;
- netdev->get_stats = irda_usb_net_get_stats;
- netdev->do_ioctl = irda_usb_net_ioctl;
+ irda_usb_init_qos(self);
return register_netdev(netdev);
}
@@ -1162,7 +1432,7 @@ static inline int irda_usb_open(struct irda_usb_cb *self)
*/
static inline void irda_usb_close(struct irda_usb_cb *self)
{
- IRDA_DEBUG(1, "%s()\n", __FUNCTION__);
+ IRDA_DEBUG(1, "%s()\n", __func__);
/* Remove netdevice */
unregister_netdev(self->netdev);
@@ -1170,6 +1440,9 @@ static inline void irda_usb_close(struct irda_usb_cb *self)
/* Remove the speed buffer */
kfree(self->speed_buff);
self->speed_buff = NULL;
+
+ kfree(self->tx_buff);
+ self->tx_buff = NULL;
}
/********************** USB CONFIG SUBROUTINES **********************/
@@ -1232,17 +1505,15 @@ static inline int irda_usb_parse_endpoints(struct irda_usb_cb *self, struct usb_
/* This is our interrupt endpoint */
self->bulk_int_ep = ep;
} else {
- IRDA_ERROR("%s(), Unrecognised endpoint %02X.\n", __FUNCTION__, ep);
+ IRDA_ERROR("%s(), Unrecognised endpoint %02X.\n", __func__, ep);
}
}
}
IRDA_DEBUG(0, "%s(), And our endpoints are : in=%02X, out=%02X (%d), int=%02X\n",
- __FUNCTION__, self->bulk_in_ep, self->bulk_out_ep, self->bulk_out_mtu, self->bulk_int_ep);
- /* Should be 8, 16, 32 or 64 bytes */
- IRDA_ASSERT(self->bulk_out_mtu == 64, ;);
+ __func__, self->bulk_in_ep, self->bulk_out_ep, self->bulk_out_mtu, self->bulk_int_ep);
- return((self->bulk_in_ep != 0) && (self->bulk_out_ep != 0));
+ return (self->bulk_in_ep != 0) && (self->bulk_out_ep != 0);
}
#ifdef IU_DUMP_CLASS_DESC
@@ -1285,10 +1556,9 @@ static inline struct irda_class_desc *irda_usb_find_class_desc(struct usb_interf
struct irda_class_desc *desc;
int ret;
- desc = kmalloc(sizeof (*desc), GFP_KERNEL);
- if (desc == NULL)
+ desc = kzalloc(sizeof(*desc), GFP_KERNEL);
+ if (!desc)
return NULL;
- memset(desc, 0, sizeof(*desc));
/* USB-IrDA class spec 1.0:
* 6.1.3: Standard "Get Descriptor" Device Request is not
@@ -1303,7 +1573,7 @@ static inline struct irda_class_desc *irda_usb_find_class_desc(struct usb_interf
0, intf->altsetting->desc.bInterfaceNumber, desc,
sizeof(*desc), 500);
- IRDA_DEBUG(1, "%s(), ret=%d\n", __FUNCTION__, ret);
+ IRDA_DEBUG(1, "%s(), ret=%d\n", __func__, ret);
if (ret < sizeof(*desc)) {
IRDA_WARNING("usb-irda: class_descriptor read %s (%d)\n",
(ret<0) ? "failed" : "too short", ret);
@@ -1341,7 +1611,7 @@ static int irda_usb_probe(struct usb_interface *intf,
{
struct net_device *net;
struct usb_device *dev = interface_to_usbdev(intf);
- struct irda_usb_cb *self = NULL;
+ struct irda_usb_cb *self;
struct usb_host_interface *interface;
struct irda_class_desc *irda_desc;
int ret = -ENOMEM;
@@ -1360,14 +1630,30 @@ static int irda_usb_probe(struct usb_interface *intf,
if (!net)
goto err_out;
- SET_MODULE_OWNER(net);
SET_NETDEV_DEV(net, &intf->dev);
- self = net->priv;
+ self = netdev_priv(net);
self->netdev = net;
spin_lock_init(&self->lock);
+ init_timer(&self->rx_defer_timer);
+
+ self->capability = id->driver_info;
+ self->needspatch = ((self->capability & IUC_STIR421X) != 0);
/* Create all of the needed urbs */
- for (i = 0; i < IU_MAX_RX_URBS; i++) {
+ if (self->capability & IUC_STIR421X) {
+ self->max_rx_urb = IU_SIGMATEL_MAX_RX_URBS;
+ self->header_length = USB_IRDA_STIR421X_HEADER;
+ } else {
+ self->max_rx_urb = IU_MAX_RX_URBS;
+ self->header_length = USB_IRDA_HEADER;
+ }
+
+ self->rx_urb = kcalloc(self->max_rx_urb, sizeof(struct urb *),
+ GFP_KERNEL);
+ if (!self->rx_urb)
+ goto err_free_net;
+
+ for (i = 0; i < self->max_rx_urb; i++) {
self->rx_urb[i] = usb_alloc_urb(0, GFP_KERNEL);
if (!self->rx_urb[i]) {
goto err_out_1;
@@ -1384,7 +1670,7 @@ static int irda_usb_probe(struct usb_interface *intf,
/* Is this really necessary? (no, except maybe for broken devices) */
if (usb_reset_configuration (dev) < 0) {
- err("reset_configuration failed");
+ dev_err(&intf->dev, "reset_configuration failed\n");
ret = -EIO;
goto err_out_3;
}
@@ -1402,10 +1688,10 @@ static int irda_usb_probe(struct usb_interface *intf,
/* Martin Diehl says if we get a -EPIPE we should
* be fine and we don't need to do a usb_clear_halt().
* - Jean II */
- IRDA_DEBUG(0, "%s(), Received -EPIPE, ignoring...\n", __FUNCTION__);
+ IRDA_DEBUG(0, "%s(), Received -EPIPE, ignoring...\n", __func__);
break;
default:
- IRDA_DEBUG(0, "%s(), Unknown error %d\n", __FUNCTION__, ret);
+ IRDA_DEBUG(0, "%s(), Unknown error %d\n", __func__, ret);
ret = -EIO;
goto err_out_3;
}
@@ -1414,42 +1700,80 @@ static int irda_usb_probe(struct usb_interface *intf,
interface = intf->cur_altsetting;
if(!irda_usb_parse_endpoints(self, interface->endpoint,
interface->desc.bNumEndpoints)) {
- IRDA_ERROR("%s(), Bogus endpoints...\n", __FUNCTION__);
+ IRDA_ERROR("%s(), Bogus endpoints...\n", __func__);
ret = -EIO;
goto err_out_3;
}
+ self->usbdev = dev;
+
/* Find IrDA class descriptor */
irda_desc = irda_usb_find_class_desc(intf);
ret = -ENODEV;
- if (irda_desc == NULL)
+ if (!irda_desc)
goto err_out_3;
+ if (self->needspatch) {
+ ret = usb_control_msg (self->usbdev, usb_sndctrlpipe (self->usbdev, 0),
+ 0x02, 0x40, 0, 0, NULL, 0, 500);
+ if (ret < 0) {
+ IRDA_DEBUG (0, "usb_control_msg failed %d\n", ret);
+ goto err_out_3;
+ } else {
+ mdelay(10);
+ }
+ }
+
self->irda_desc = irda_desc;
self->present = 1;
self->netopen = 0;
- self->capability = id->driver_info;
- self->usbdev = dev;
self->usbintf = intf;
/* Allocate the buffer for speed changes */
/* Don't change this buffer size and allocation without doing
* some heavy and complete testing. Don't ask why :-(
* Jean II */
- self->speed_buff = (char *) kmalloc(IRDA_USB_SPEED_MTU, GFP_KERNEL);
- if (self->speed_buff == NULL)
+ self->speed_buff = kzalloc(IRDA_USB_SPEED_MTU, GFP_KERNEL);
+ if (!self->speed_buff)
goto err_out_3;
- memset(self->speed_buff, 0, IRDA_USB_SPEED_MTU);
+ self->tx_buff = kzalloc(IRDA_SKB_MAX_MTU + self->header_length,
+ GFP_KERNEL);
+ if (!self->tx_buff)
+ goto err_out_4;
ret = irda_usb_open(self);
if (ret)
- goto err_out_4;
+ goto err_out_5;
IRDA_MESSAGE("IrDA: Registered device %s\n", net->name);
usb_set_intfdata(intf, self);
- return 0;
+ if (self->needspatch) {
+ /* Now we fetch and upload the firmware patch */
+ ret = stir421x_patch_device(self);
+ self->needspatch = (ret < 0);
+ if (self->needspatch) {
+ IRDA_ERROR("STIR421X: Couldn't upload patch\n");
+ goto err_out_6;
+ }
+
+ /* replace IrDA class descriptor with what patched device is now reporting */
+ irda_desc = irda_usb_find_class_desc (self->usbintf);
+ if (!irda_desc) {
+ ret = -ENODEV;
+ goto err_out_6;
+ }
+ kfree(self->irda_desc);
+ self->irda_desc = irda_desc;
+ irda_usb_init_qos(self);
+ }
+
+ return 0;
+err_out_6:
+ unregister_netdev(self->netdev);
+err_out_5:
+ kfree(self->tx_buff);
err_out_4:
kfree(self->speed_buff);
err_out_3:
@@ -1458,10 +1782,10 @@ err_out_3:
err_out_2:
usb_free_urb(self->tx_urb);
err_out_1:
- for (i = 0; i < IU_MAX_RX_URBS; i++) {
- if (self->rx_urb[i])
- usb_free_urb(self->rx_urb[i]);
- }
+ for (i = 0; i < self->max_rx_urb; i++)
+ usb_free_urb(self->rx_urb[i]);
+ kfree(self->rx_urb);
+err_free_net:
free_netdev(net);
err_out:
return ret;
@@ -1485,7 +1809,7 @@ static void irda_usb_disconnect(struct usb_interface *intf)
struct irda_usb_cb *self = usb_get_intfdata(intf);
int i;
- IRDA_DEBUG(1, "%s()\n", __FUNCTION__);
+ IRDA_DEBUG(1, "%s()\n", __func__);
usb_set_intfdata(intf, NULL);
if (!self)
@@ -1498,6 +1822,9 @@ static void irda_usb_disconnect(struct usb_interface *intf)
* This will stop/desactivate the Tx path. - Jean II */
self->present = 0;
+ /* Kill defered Rx URB */
+ del_timer(&self->rx_defer_timer);
+
/* We need to have irq enabled to unlink the URBs. That's OK,
* at this point the Tx path is gone - Jean II */
spin_unlock_irqrestore(&self->lock, flags);
@@ -1507,11 +1834,11 @@ static void irda_usb_disconnect(struct usb_interface *intf)
/* Accept no more transmissions */
/*netif_device_detach(self->netdev);*/
netif_stop_queue(self->netdev);
- /* Stop all the receive URBs */
- for (i = 0; i < IU_MAX_RX_URBS; i++)
+ /* Stop all the receive URBs. Must be synchronous. */
+ for (i = 0; i < self->max_rx_urb; i++)
usb_kill_urb(self->rx_urb[i]);
/* Cancel Tx and speed URB.
- * Toggle flags to make sure it's synchronous. */
+ * Make sure it's synchronous to avoid races. */
usb_kill_urb(self->tx_urb);
usb_kill_urb(self->speed_urb);
}
@@ -1523,68 +1850,76 @@ static void irda_usb_disconnect(struct usb_interface *intf)
self->usbintf = NULL;
/* Clean up our urbs */
- for (i = 0; i < IU_MAX_RX_URBS; i++)
+ for (i = 0; i < self->max_rx_urb; i++)
usb_free_urb(self->rx_urb[i]);
+ kfree(self->rx_urb);
/* Clean up Tx and speed URB */
usb_free_urb(self->tx_urb);
usb_free_urb(self->speed_urb);
/* Free self and network device */
free_netdev(self->netdev);
- IRDA_DEBUG(0, "%s(), USB IrDA Disconnected\n", __FUNCTION__);
+ IRDA_DEBUG(0, "%s(), USB IrDA Disconnected\n", __func__);
}
-/*------------------------------------------------------------------*/
-/*
- * USB device callbacks
- */
-static struct usb_driver irda_driver = {
- .name = "irda-usb",
- .probe = irda_usb_probe,
- .disconnect = irda_usb_disconnect,
- .id_table = dongles,
-};
+#ifdef CONFIG_PM
+/* USB suspend, so power off the transmitter/receiver */
+static int irda_usb_suspend(struct usb_interface *intf, pm_message_t message)
+{
+ struct irda_usb_cb *self = usb_get_intfdata(intf);
+ int i;
-/************************* MODULE CALLBACKS *************************/
-/*
- * Deal with module insertion/removal
- * Mostly tell USB about our existence
- */
+ netif_device_detach(self->netdev);
-/*------------------------------------------------------------------*/
-/*
- * Module insertion
- */
-static int __init usb_irda_init(void)
+ if (self->tx_urb != NULL)
+ usb_kill_urb(self->tx_urb);
+ if (self->speed_urb != NULL)
+ usb_kill_urb(self->speed_urb);
+ for (i = 0; i < self->max_rx_urb; i++) {
+ if (self->rx_urb[i] != NULL)
+ usb_kill_urb(self->rx_urb[i]);
+ }
+ return 0;
+}
+
+/* Coming out of suspend, so reset hardware */
+static int irda_usb_resume(struct usb_interface *intf)
{
- int ret;
+ struct irda_usb_cb *self = usb_get_intfdata(intf);
+ int i;
- ret = usb_register(&irda_driver);
- if (ret < 0)
- return ret;
+ for (i = 0; i < self->max_rx_urb; i++) {
+ if (self->rx_urb[i] != NULL)
+ usb_submit_urb(self->rx_urb[i], GFP_KERNEL);
+ }
- IRDA_MESSAGE("USB IrDA support registered\n");
+ netif_device_attach(self->netdev);
return 0;
}
-module_init(usb_irda_init);
+#endif
/*------------------------------------------------------------------*/
/*
- * Module removal
+ * USB device callbacks
*/
-static void __exit usb_irda_cleanup(void)
-{
- /* Deregister the driver and remove all pending instances */
- usb_deregister(&irda_driver);
-}
-module_exit(usb_irda_cleanup);
+static struct usb_driver irda_driver = {
+ .name = "irda-usb",
+ .probe = irda_usb_probe,
+ .disconnect = irda_usb_disconnect,
+ .id_table = dongles,
+#ifdef CONFIG_PM
+ .suspend = irda_usb_suspend,
+ .resume = irda_usb_resume,
+#endif
+};
+
+module_usb_driver(irda_driver);
-/*------------------------------------------------------------------*/
/*
* Module parameters
*/
module_param(qos_mtt_bits, int, 0);
MODULE_PARM_DESC(qos_mtt_bits, "Minimum Turn Time");
-MODULE_AUTHOR("Roman Weissgaerber <weissg@vienna.at>, Dag Brattli <dag@brattli.net> and Jean Tourrilhes <jt@hpl.hp.com>");
-MODULE_DESCRIPTION("IrDA-USB Dongle Driver");
+MODULE_AUTHOR("Roman Weissgaerber <weissg@vienna.at>, Dag Brattli <dag@brattli.net>, Jean Tourrilhes <jt@hpl.hp.com> and Nick Fedchik <nick@fedchik.org.ua>");
+MODULE_DESCRIPTION("IrDA-USB Dongle Driver");
MODULE_LICENSE("GPL");
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-12-05 23:08:15 +0000