Importing files for 2.5.1-rc1 release.

git-svn-id: http://svn.asterisk.org/svn/dahdi/linux/tags/2.5.1-rc1@10582 a0bf4364-ded3-4de4-8d8a-66a801d63aff
Creating tag for the release of dahdi-linux-2.5.1-rc1
2012-03-21 22:03:42 +00:00 · 2012-03-21 22:03:05 +00:00 · 2012-03-21 20:40:52 +00:00 · 2012-03-21 20:40:29 +00:00 · 2012-03-20 11:19:17 +00:00 · 2012-03-18 19:07:51 +00:00
41 changed files with 31700 additions and 4744 deletions
--- a/.version
+++ b/.version
@@ -0,0 +1 @@
+2.5.1-rc1
--- a/5426
+++ b/5426
--- a/11
+++ b/11
@@ -211,13 +211,10 @@ under driver/staging/echo . In fact, dahdi_echocan_oslec assumes that
 this is where the oslec code lies. If it is elsewhere you'll need to fix
 the #include line.

-Thus for the moment, the simplest way to build OSLEC with dahdi is:
-
-1. Copy the directory `drivers/staging/echo` from a recent kernel tree 
-   (at least 2.6.28-rc1) to the a subdirectory with the same name in the
-   dahdi-linux tree.
-
-2. Edit drivers/dahdi/Kbuild and uncomment the two lines related to OSLEC.
+Thus for the moment, the simplest way to build OSLEC with dahdi is to
+copy the directory `drivers/staging/echo` from a recent kernel tree (at
+least 2.6.28-rc1) to the a subdirectory with the same name in the
+dahdi-linux tree.

 After doing that, you'll see the following when building (running
 'make')
--- a/drivers/dahdi/Kbuild
+++ b/drivers/dahdi/Kbuild
@@ -6,6 +6,7 @@ obj-$(DAHDI_BUILD_ALL)$(CONFIG_DAHDI_DYNAMIC_ETH)	+= dahdi_dynamic_eth.o
 obj-$(DAHDI_BUILD_ALL)$(CONFIG_DAHDI_DYNAMIC_ETHMF)	+= dahdi_dynamic_ethmf.o
 obj-$(DAHDI_BUILD_ALL)$(CONFIG_DAHDI_TRANSCODE)		+= dahdi_transcode.o

+ifdef CONFIG_PCI
 obj-$(DAHDI_BUILD_ALL)$(CONFIG_DAHDI_WCT4XXP)		+= wct4xxp/
 obj-$(DAHDI_BUILD_ALL)$(CONFIG_DAHDI_WCTC4XXP)		+= wctc4xxp/
 obj-$(DAHDI_BUILD_ALL)$(CONFIG_DAHDI_WCTDM24XXP)	+= wctdm24xxp/
@@ -20,6 +21,7 @@ obj-$(DAHDI_BUILD_ALL)$(CONFIG_DAHDI_WCTE11XP)		+= wcte11xp.o
 obj-$(DAHDI_BUILD_ALL)$(CONFIG_DAHDI_WCFXO)		+= wcfxo.o
 obj-$(DAHDI_BUILD_ALL)$(CONFIG_DAHDI_TOR2)		+= tor2.o
 obj-$(DAHDI_BUILD_ALL)$(CONFIG_DAHDI_PCIRADIO)		+= pciradio.o
+endif

 obj-$(DAHDI_BUILD_ALL)$(CONFIG_DAHDI_XPP)		+= xpp/

@@ -31,14 +33,13 @@ obj-$(DAHDI_BUILD_ALL)$(CONFIG_DAHDI_ECHOCAN_MG2)	+= dahdi_echocan_mg2.o

 obj-m += $(DAHDI_MODULES_EXTRA)

-# Only enable this if you think you know what you're doing. This is not
-# supported yet:
-#obj-m += dahdi_echocan_oslec.o
-#
-# A quick and dirty way to build OSLEC, if you happened to place it
-# yourself in the dahdi source tree. This is experimental. See README
-# regarding OSLEC.
-#obj-m += ../staging/echo/
+# If you want to build OSLEC, include the code in the standard location:
+# drivers/staging/echo . The DAHDI OSLEC echo canceller will be built as
+# well:
+ifneq (,$(wildcard $(src)/../staging/echo/echo.c))
+obj-m += dahdi_echocan_oslec.o
+obj-m += ../staging/echo/
+endif

 CFLAGS_MODULE += -I$(DAHDI_INCLUDE) -I$(src)

--- a/drivers/dahdi/dahdi-base.c
+++ b/drivers/dahdi/dahdi-base.c
@@ -3683,10 +3683,11 @@ static void __dahdi_find_master_span(void)
 	spin_lock_irqsave(&chan_lock, flags);
 	old_master = master;
 	list_for_each_entry(s, &span_list, node) {
-		if (s->alarms)
+		if (s->alarms && old_master)
 			continue;
 		if (!is_analog_span(s) &&
-		    !test_bit(DAHDI_FLAGBIT_RUNNING, &s->flags))
+		    !test_bit(DAHDI_FLAGBIT_RUNNING, &s->flags) &&
+		    old_master)
 			continue;
 		if (!can_provide_timing(s))
 			continue;
@@ -4797,6 +4798,10 @@ static int dahdi_ioctl_startup(struct file *file, unsigned long data)
 			 */
 			s->chans[x]->rxhooksig = DAHDI_RXSIG_INITIAL;
 		}
+
+		/* Now that this span is running, it might be selected as the
+		 * master span */
+		__dahdi_find_master_span();
 	}
 	put_span(s);
 	return 0;
@@ -9227,12 +9232,12 @@ static void coretimer_init(void)
 	init_timer(&core_timer.timer);
 	core_timer.timer.function = coretimer_func;
 	core_timer.start_interval = current_kernel_time();
-	core_timer.timer.expires = jiffies + HZ;
 	atomic_set(&core_timer.count, 0);
 	atomic_set(&core_timer.shutdown, 0);
 	core_timer.interval = max(msecs_to_jiffies(DAHDI_MSECS_PER_CHUNK), 1UL);
 	if (core_timer.interval < (HZ/250))
 		core_timer.interval = (HZ/250);
+	core_timer.timer.expires = jiffies + core_timer.interval;
 	add_timer(&core_timer.timer);
 }

--- a/drivers/dahdi/dahdi_dynamic.c
+++ b/drivers/dahdi/dahdi_dynamic.c
@@ -200,16 +200,9 @@ static void __dahdi_dynamic_run(void)
 {
 	struct dahdi_dynamic *d;
 	struct dahdi_dynamic_driver *drv;
-	int y;

 	rcu_read_lock();
 	list_for_each_entry_rcu(d, &dspan_list, list) {
-		for (y = 0; y < d->span.channels; y++) {
-			struct dahdi_chan *const c = d->span.chans[y];
-			/* Echo cancel double buffered data */
-			dahdi_ec_chunk(c, c->readchunk, c->writechunk);
-		}
-		dahdi_receive(&d->span);
 		dahdi_transmit(&d->span);
 		/* Handle all transmissions now */
 		dahdi_dynamic_sendmessage(d);
@@ -370,6 +363,9 @@ void dahdi_dynamic_receive(struct dahdi_span *span, unsigned char *msg, int msgl
 	if (unlikely(rxpos != rxcnt))
 		printk(KERN_NOTICE "Span %s: Expected seq no %d, but received %d instead\n", span->name, rxcnt, rxpos);

+	dahdi_ec_span(span);
+	dahdi_receive(span);
+
 	/* If this is our master span, then run everything */
 	if (master)
 		dahdi_dynamic_run();
--- a/drivers/dahdi/firmware/Makefile
+++ b/drivers/dahdi/firmware/Makefile
@@ -27,7 +27,7 @@ OCT6114_128_VERSION:=1.05.01
 TC400M_VERSION:=MR6.12
 VPMADT032_VERSION:=1.25.0
 HX8_VERSION:=2.06
-VPMOCT032_VERSION:=1.8.0
+VPMOCT032_VERSION:=1.11.0

 FIRMWARE_URL:=http://downloads.digium.com/pub/telephony/firmware/releases

--- a/drivers/dahdi/voicebus/GpakCust.h
+++ b/drivers/dahdi/voicebus/GpakCust.h
@@ -36,6 +36,7 @@
 #ifndef _GPAKCUST_H  /* prevent multiple inclusion */
 #define _GPAKCUST_H

+#include <linux/module.h>
 #include <linux/device.h>
 #include <linux/completion.h>
 #include <linux/workqueue.h>
--- a/drivers/dahdi/voicebus/voicebus.c
+++ b/drivers/dahdi/voicebus/voicebus.c
@@ -1683,6 +1683,7 @@ vb_isr(int irq, void *dev_id)
 #endif
 {
 	struct voicebus *vb = dev_id;
+	unsigned long flags;
 	u32 int_status;

 	int_status = __vb_getctl(vb, SR_CSR5);
@@ -1693,6 +1694,8 @@ vb_isr(int irq, void *dev_id)
 	if (!int_status)
 		return IRQ_NONE;

+	local_irq_save(flags);
+
 	if (unlikely((int_status &
 	    (TX_UNAVAILABLE_INTERRUPT|RX_UNAVAILABLE_INTERRUPT)) &&
 	    !test_bit(VOICEBUS_STOP, &vb->flags) &&
@@ -1733,6 +1736,7 @@ vb_isr(int irq, void *dev_id)
 		/* Clear the interrupt(s) */
 		__vb_setctl(vb, SR_CSR5, int_status);
 	}
+	local_irq_restore(flags);

 	return IRQ_HANDLED;
 }
@@ -1881,7 +1885,7 @@ __voicebus_init(struct voicebus *vb, const char *board_name,
 		goto cleanup;

 #if !defined(CONFIG_VOICEBUS_TIMER)
-	retval = request_irq(vb->pdev->irq, vb_isr, DAHDI_IRQ_SHARED_DISABLED,
+	retval = request_irq(vb->pdev->irq, vb_isr, DAHDI_IRQ_SHARED,
 			     board_name, vb);
 	if (retval) {
 		dev_warn(&vb->pdev->dev, "Failed to request interrupt line.\n");
--- a/drivers/dahdi/voicebus/voicebus_net.c
+++ b/drivers/dahdi/voicebus/voicebus_net.c
@@ -35,22 +35,16 @@

 #ifdef VOICEBUS_NET_DEBUG

-#ifdef HAVE_NETDEV_PRIV
 struct voicebus_netdev_priv {
 	struct voicebus *vb;
 };
-#endif

 static inline struct voicebus *
 voicebus_from_netdev(struct net_device *netdev)
 {
-#ifdef HAVE_NETDEV_PRIV
 	struct voicebus_netdev_priv *priv;
 	priv = netdev_priv(netdev);
 	return priv->vb;
-#else
-	return netdev->priv;
-#endif
 }

 static void *
@@ -209,23 +203,14 @@ int vb_net_register(struct voicebus *vb, const char *board_name)
 {
 	int res;
 	struct net_device *netdev;
-#	ifdef HAVE_NETDEV_PRIV
 	struct voicebus_netdev_priv *priv;
-#	endif
 	const char our_mac[] = { 0xaa, 0xbb, 0xcc, 0xdd, 0xee, 0xff};

-#	ifdef HAVE_NETDEV_PRIV
 	netdev = alloc_netdev(sizeof(*priv), board_name, ether_setup);
 	if (!netdev)
 		return -ENOMEM;
 	priv = netdev_priv(netdev);
 	priv->vb = vb;
-#	else
-	netdev = alloc_netdev(0, vb->board_name, ether_setup);
-	if (!netdev)
-		return -ENOMEM;
-	netdev->priv = vb;
-#	endif
 	memcpy(netdev->dev_addr, our_mac, sizeof(our_mac));
 #	ifdef HAVE_NET_DEVICE_OPS
 	netdev->netdev_ops = &vb_netdev_ops;
--- a/drivers/dahdi/wcb4xxp/base.c
+++ b/drivers/dahdi/wcb4xxp/base.c
@@ -2205,7 +2205,7 @@ static const char *b4xxp_echocan_name(const struct dahdi_chan *chan)
 {
 	struct b4xxp_span *bspan = container_of(chan->span, struct b4xxp_span,
 						span);
-	if (bspan->parent->card_type == B410P)
+	if (vpmsupport && (B410P == bspan->parent->card_type))
 		return "LASVEGAS2";
 	return NULL;
 }
--- a/drivers/dahdi/wct4xxp/base.c
+++ b/drivers/dahdi/wct4xxp/base.c
@@ -766,11 +766,9 @@ static inline unsigned int __t4_raw_oct_in(struct t4 *wc, const unsigned int add
 	__t4_pci_out(wc, WC_LADDR, (WC_LWRITE | WC_LALE));
 	if (!pedanticpci)
 		__t4_pci_in(wc, WC_VERSION);
-#ifdef PEDANTIC_OCTASIC_CHECKING 
 	__t4_pci_out(wc, WC_LADDR, (WC_LALE));
 	if (!pedanticpci)
 		__t4_pci_in(wc, WC_VERSION);
-#endif
 	if (!octopt) {
 		__t4_gpio_setdir(wc, 0xff, 0x00);
 		__t4_gpio_set(wc, 0xff, 0x00);
@@ -2384,7 +2382,7 @@ static int __t4_findsync(struct t4 *wc)
 		while (p < 8) {
 			nonzero = 0;
 			for (x=0;cards[x];x++) {
-				for (i = 0; i < wc->numspans; i++) {
+				for (i = 0; i < cards[x]->numspans; i++) {
 					if (cards[x]->tspans[i]->syncpos) {
 						nonzero = 1;
 						if ((cards[x]->tspans[i]->syncpos == p) &&
--- a/drivers/dahdi/wctc4xxp/base.c
+++ b/drivers/dahdi/wctc4xxp/base.c
@@ -73,20 +73,6 @@
 		dev_info(&(wc)->pdev->dev, _fmt, ## _args);		\
 	}								\

-#if LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 18)
-#ifndef WARN_ON_ONCE
-#define WARN_ON_ONCE(__condition) do {         \
-	static int __once = 1;                 \
-	if (unlikely(__condition)) {           \
-		if (__once) {                  \
-			__once = 0;            \
-			WARN_ON(0);            \
-		}                              \
-	}                                      \
-} while (0)
-#endif
-#endif
-
 #if LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 14)
 /* also added in RHEL kernels with the OpenInfiniband backport: */
 #if LINUX_VERSION_CODE != KERNEL_VERSION(2, 6, 9) || !defined(DEFINE_SPINLOCK)
@@ -394,22 +380,16 @@ struct wcdte {
 #endif
 };

-#ifdef HAVE_NETDEV_PRIV
 struct wcdte_netdev_priv {
 	struct wcdte *wc;
 };
-#endif

 static inline struct wcdte *
 wcdte_from_netdev(struct net_device *netdev)
 {
-#ifdef HAVE_NETDEV_PRIV
 	struct wcdte_netdev_priv *priv;
 	priv = netdev_priv(netdev);
 	return priv->wc;
-#else
-	return netdev->priv;
-#endif
 }


@@ -494,6 +474,7 @@ wctc4xxp_skb_to_cmd(struct wcdte *wc, const struct sk_buff *skb)
 	return cmd;
 }

+#if LINUX_VERSION_CODE < KERNEL_VERSION(3, 2, 0)
 static void
 wctc4xxp_net_set_multi(struct net_device *netdev)
 {
@@ -501,6 +482,15 @@ wctc4xxp_net_set_multi(struct net_device *netdev)
 	DTE_DEBUG(DTE_DEBUG_GENERAL, "%s promiscuity:%d\n",
 	   __func__, netdev->promiscuity);
 }
+#else
+static void
+wctc4xxp_set_rx_mode(struct net_device *netdev)
+{
+	struct wcdte *wc = wcdte_from_netdev(netdev);
+	DTE_DEBUG(DTE_DEBUG_GENERAL, "%s promiscuity:%d\n",
+	   __func__, netdev->promiscuity);
+}
+#endif

 static int
 wctc4xxp_net_up(struct net_device *netdev)
@@ -664,7 +654,11 @@ wctc4xxp_net_ioctl(struct net_device *netdev, struct ifreq *ifr, int cmd)

 #ifdef HAVE_NET_DEVICE_OPS
 static const struct net_device_ops wctc4xxp_netdev_ops = {
+#if LINUX_VERSION_CODE < KERNEL_VERSION(3, 2, 0)
 	.ndo_set_multicast_list = &wctc4xxp_net_set_multi,
+#else
+	.ndo_set_rx_mode = &wctc4xxp_set_rx_mode,
+#endif
 	.ndo_open = &wctc4xxp_net_up,
 	.ndo_stop = &wctc4xxp_net_down,
 	.ndo_start_xmit = &wctc4xxp_net_hard_start_xmit,
@@ -686,23 +680,14 @@ wctc4xxp_net_register(struct wcdte *wc)
 {
 	int res;
 	struct net_device *netdev;
-#	ifdef HAVE_NETDEV_PRIV
 	struct wcdte_netdev_priv *priv;
-#	endif
 	const char our_mac[] = { 0xaa, 0xbb, 0xcc, 0xdd, 0xee, 0xff};

-#	ifdef HAVE_NETDEV_PRIV
 	netdev = alloc_netdev(sizeof(*priv), wc->board_name, ether_setup);
 	if (!netdev)
 		return -ENOMEM;
 	priv = netdev_priv(netdev);
 	priv->wc = wc;
-#	else
-	netdev = alloc_netdev(0, wc->board_name, ether_setup);
-	if (!netdev)
-		return -ENOMEM;
-	netdev->priv = wc;
-#	endif
 	memcpy(netdev->dev_addr, our_mac, sizeof(our_mac));

 #	ifdef HAVE_NET_DEVICE_OPS
@@ -2173,12 +2158,13 @@ wctc4xxp_write(struct file *file, const char __user *frame,
 	}

 	if (DAHDI_FORMAT_G723_1 == dtc->srcfmt) {
-		if ((G723_5K_BYTES != count) && (G723_6K_BYTES != count)) {
+		if ((G723_5K_BYTES != count) && (G723_6K_BYTES != count) &&
+		    (G723_SID_BYTES != count)) {
 			DTE_DEBUG(DTE_DEBUG_GENERAL,
 			   "Trying to transcode packet into G723 format " \
 			   "that is %Zu bytes instead of the expected " \
-			   "%d/%d bytes.\n", count, G723_5K_BYTES,
-			   G723_6K_BYTES);
+			   "%d/%d/%d bytes.\n", count, G723_5K_BYTES,
+			   G723_6K_BYTES, G723_SID_BYTES);
 			return -EINVAL;
 		}
 		cpvt->timestamp += G723_SAMPLES;
@@ -3336,6 +3322,7 @@ wctc4xxp_watchdog(unsigned long data)
 					  "Board malfunctioning.  " \
 					  "Halting operation.\n");
 					reschedule_timer = 0;
+					spin_lock(&wc->cmd_list_lock);
 					break;
 				}
 				/* ERROR:  We've retried the command and
--- a/drivers/dahdi/wctdm.c
+++ b/drivers/dahdi/wctdm.c
@@ -1710,7 +1710,7 @@ static int wctdm_init_voicedaa(struct wctdm *wc, int card, int fast, int manual,

 	/* Misc. DAA parameters */
 	if (fastpickup)
-		reg31 = 0xb3;
+		reg31 = 0xe3;
 	else
 		reg31 = 0xa3;

--- a/drivers/dahdi/wctdm24xxp/base.c
+++ b/drivers/dahdi/wctdm24xxp/base.c
@@ -867,6 +867,8 @@ static void _cmd_decipher(struct wctdm *wc, const u8 *eframe, int card)
 		return;
 	}

+	list_add(&cmd->node, &wc->free_isr_commands);
+
 	switch (mod->type) {
 	case FXS:
 		mod->isrshadow[(68 == address) ? 0 : 1] = value;
@@ -884,8 +886,6 @@ static void _cmd_decipher(struct wctdm *wc, const u8 *eframe, int card)
 	default:
 		break;
 	}
-
-	kfree(cmd);
 }

 /* Call with wc.reglock held and local interrupts disabled. */
@@ -894,9 +894,15 @@ wctdm_isr_getreg(struct wctdm *wc, struct wctdm_module *const mod, u8 address)
 {
 	struct wctdm_cmd *cmd;

-	cmd = kmalloc(sizeof(*cmd), GFP_ATOMIC);
-	if (unlikely(!cmd))
-		return;
+	if (!list_empty(&wc->free_isr_commands)) {
+		cmd = list_entry(wc->free_isr_commands.next,
+				 struct wctdm_cmd, node);
+		list_del(&cmd->node);
+	} else {
+		cmd = kmalloc(sizeof(*cmd), GFP_ATOMIC);
+		if (unlikely(!cmd))
+			return;
+	}

 	cmd->cmd = CMD_RD(address);
 	cmd->complete = NULL;
@@ -1980,20 +1986,16 @@ wctdm_fxs_hooksig(struct wctdm *wc, struct wctdm_module *const mod,
 	switch (txsig) {
 	case DAHDI_TXSIG_ONHOOK:
 		switch (get_dahdi_chan(wc, mod)->sig) {
-		case DAHDI_SIG_EM:
-		case DAHDI_SIG_FXOKS:
-		case DAHDI_SIG_FXOLS:
-			x = fxs->idletxhookstate;
-			break;
 		case DAHDI_SIG_FXOGS:
 			x = (POLARITY_XOR(fxs)) ?
 					SLIC_LF_RING_OPEN :
 					SLIC_LF_TIP_OPEN;
 			break;
+		case DAHDI_SIG_EM:
+		case DAHDI_SIG_FXOKS:
+		case DAHDI_SIG_FXOLS:
 		default:
-			WARN_ONCE(1, "%x is an invalid signaling state for "
-				  "an FXS module.\n",
-				  get_dahdi_chan(wc, mod)->sig);
+			x = fxs->idletxhookstate;
 			break;
 		}
 		break;
@@ -2870,7 +2872,10 @@ wctdm_init_voicedaa(struct wctdm *wc, struct wctdm_module *mod,
 	wctdm_setreg(wc, mod, 30, reg30);

 	/* Misc. DAA parameters */
-	reg31 = (fastpickup) ? 0xb3 : 0xa3;
+
+	/* If fast pickup is set, then the off hook counter will be set to 8
+	 * ms, otherwise 128 ms. */
+	reg31 = (fastpickup) ? 0xe3 : 0xa3;

 	reg31 |= (fxo_modes[_opermode].ohs2 << 3);
 	wctdm_setreg(wc, mod, 31, reg31);
@@ -2880,6 +2885,10 @@ wctdm_init_voicedaa(struct wctdm *wc, struct wctdm_module *mod,
 	/* Enable ISO-Cap */
 	wctdm_setreg(wc, mod, 6, 0x00);

+	/* Turn off the calibration delay when fastpickup is enabled. */
+	if (fastpickup)
+		wctdm_setreg(wc, mod, 17, wctdm_getreg(wc, mod, 17) | 0x20);
+
 	/* Wait 1000ms for ISO-cap to come up */
 	newjiffies = jiffies;
 	newjiffies += 2 * HZ;
@@ -4229,7 +4238,6 @@ wctdm_init_span(struct wctdm *wc, int spanno, int chanoffset, int chancount,
 		 (wc->desc->flags & FLAG_EXPRESS) ? " Express" : "",
 		 pdev->bus->number, PCI_SLOT(pdev->devfn) + 1);
 	s->span.manufacturer = "Digium";
-	strncpy(s->span.devicetype, wc->desc->name, sizeof(s->span.devicetype) - 1);

 	if (wc->companding == DAHDI_LAW_DEFAULT) {
 		if (wc->digi_mods || digital_span)
@@ -4335,13 +4343,6 @@ static void wctdm_fixup_analog_span(struct wctdm *wc, int spanno)
 			s->chans[y++]->sigcap = 0;
 		}
 	}
-
-	for (x = 0; x < MAX_SPANS; x++) {
-		if (!wc->spans[x])
-			continue;
-		if (wc->vpmadt032)
-			strncat(wc->spans[x]->span.devicetype, " (VPMADT032)", sizeof(wc->spans[x]->span.devicetype) - 1);
-	}
 }

 static int wctdm_initialize_vpmadt032(struct wctdm *wc)
@@ -4633,6 +4634,7 @@ static void wctdm_back_out_gracefully(struct wctdm *wc)
 		list_splice_init(&mod->pending_cmds, &local_list);
 		list_splice_init(&mod->active_cmds, &local_list);
 	}
+	list_splice_init(&wc->free_isr_commands, &local_list);
 	spin_unlock_irqrestore(&wc->reglock, flags);

 	while (!list_empty(&local_list)) {
@@ -5221,6 +5223,60 @@ static void wctdm_set_tdm410_leds(struct wctdm *wc)
 	}
 }

+/**
+ * wctdm_allocate_irq_commands - Preallocate some commands for use in interrupt context.
+ * @wc:	The board which we're allocating for.
+ * @count:	The number of IRQ commands to allocate.
+ *
+ * We need a minimum of 4 * the current latency worth of commands for each
+ * analog module. When the latency grows, new commands will be allocated, but
+ * this just represents are best guess as to the number of commands we'll need
+ * after probing for modules, and reduces the chance that we'll allocate
+ * memory in interrupt context when the driver first loads.
+ *
+ */
+static void wctdm_allocate_irq_commands(struct wctdm *wc, unsigned int count)
+{
+	unsigned long flags;
+	LIST_HEAD(local_list);
+
+	if (!count)
+		return;
+
+	while (count--) {
+		struct wctdm_cmd *cmd;
+		cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
+		if (!cmd)
+			break;
+		list_add(&cmd->node, &local_list);
+	}
+
+	spin_lock_irqsave(&wc->reglock, flags);
+	list_splice(&local_list, &wc->free_isr_commands);
+	spin_unlock_irqrestore(&wc->reglock, flags);
+}
+
+static void set_span_devicetype_string(struct wctdm *wc)
+{
+	unsigned int x;
+
+	for (x = 0; x < ARRAY_SIZE(wc->spans); x++) {
+		struct dahdi_span *const s = &wc->spans[x]->span;
+		if (!s)
+			continue;
+
+		strlcpy(s->devicetype, wc->desc->name, sizeof(s->devicetype));
+
+		if (wc->vpmadt032) {
+			strlcat(s->devicetype, " (VPMADT032)",
+				sizeof(s->devicetype));
+		} else if (wc->vpmoct) {
+			strlcat(s->devicetype, " (VPMOCT032)",
+				sizeof(s->devicetype));
+		}
+	}
+}
+
 #ifdef USE_ASYNC_INIT
 struct async_data {
 	struct pci_dev *pdev;
@@ -5266,6 +5322,7 @@ __wctdm_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
 	spin_lock_init(&wc->frame_list_lock);
 	init_waitqueue_head(&wc->regq);
 	spin_lock_init(&wc->reglock);
+	INIT_LIST_HEAD(&wc->free_isr_commands);
 	wc->oldsync = -1;

 	wc->board_name = kasprintf(GFP_KERNEL, "%s%d", wctdm_driver.name, pos);
@@ -5350,7 +5407,6 @@ __wctdm_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
 	if (is_hx8(wc)) {
 		ret = hx8_check_firmware(wc);
 		if (ret) {
-			voicebus_release(&wc->vb);
 			wctdm_back_out_gracefully(wc);
 			return -EIO;
 		}
@@ -5475,6 +5531,8 @@ __wctdm_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)

 	wctdm_initialize_vpm(wc);

+	set_span_devicetype_string(wc);
+
 #ifdef USE_ASYNC_INIT
 		async_synchronize_cookie(cookie);
 #endif
@@ -5492,6 +5550,7 @@ __wctdm_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
 		}
 	}

+	wctdm_allocate_irq_commands(wc, anamods * latency * 4);
 	wc->not_ready--;

 	dev_info(&wc->vb.pdev->dev,
--- a/drivers/dahdi/wctdm24xxp/wctdm24xxp.h
+++ b/drivers/dahdi/wctdm24xxp/wctdm24xxp.h
@@ -255,6 +255,7 @@ struct wctdm {

 	spinlock_t reglock;			/* held when accessing anything affecting the module array */
 	wait_queue_head_t regq;
+	struct list_head free_isr_commands;

 	struct wctdm_module mods[NUM_MODULES];

--- a/drivers/dahdi/wcte12xp/base.c
+++ b/drivers/dahdi/wcte12xp/base.c
@@ -1022,9 +1022,13 @@ static void set_span_devicetype(struct t1 *wc)
 		sizeof(wc->span.devicetype) - 1);

 #if defined(VPM_SUPPORT)
-	if (wc->vpmadt032)
+	if (wc->vpmadt032) {
 		strncat(wc->span.devicetype, " (VPMADT032)",
 			sizeof(wc->span.devicetype) - 1);
+	} else if (wc->vpmoct) {
+		strncat(wc->span.devicetype, " (VPMOCT032)",
+			sizeof(wc->span.devicetype) - 1);
+	}
 #endif
 }

@@ -1660,6 +1664,8 @@ static void check_and_load_vpm(struct t1 *wc)

 		vpmoct_init(vpmoct, t1_vpm_load_complete);
 	}
+
+	set_span_devicetype(wc);
 }
 #else
 static inline void check_and_load_vpm(const struct t1 *wc)
--- a/drivers/dahdi/xpp/card_bri.c
+++ b/drivers/dahdi/xpp/card_bri.c
@@ -35,6 +35,10 @@

 static const char rcsid[] = "$Id$";

+#ifndef	DAHDI_SIG_HARDHDLC
+#error Cannot build BRI without HARDHDLC supprt
+#endif
+
 static DEF_PARM(int, debug, 0, 0644, "Print DBG statements");	/* must be before dahdi_debug.h */
 static DEF_PARM(uint, poll_interval, 500, 0644, "Poll channel state interval in milliseconds (0 - disable)");
 static DEF_PARM_BOOL(nt_keepalive, 1, 0644, "Force BRI_NT to keep trying connection");
@@ -129,22 +133,7 @@ typedef union {
 #define	REG30_LOST	3	/* in polls */
 #define	DCHAN_LOST	15000	/* in ticks */

-#ifdef	CONFIG_DAHDI_BRI_DCHANS
-#define	BRI_DCHAN_SIGCAP	(			  \
-					DAHDI_SIG_EM	| \
-					DAHDI_SIG_CLEAR	| \
-					DAHDI_SIG_FXSLS	| \
-					DAHDI_SIG_FXSGS	| \
-					DAHDI_SIG_FXSKS	| \
-					DAHDI_SIG_FXOLS	| \
-					DAHDI_SIG_FXOGS	| \
-					DAHDI_SIG_FXOKS	| \
-					DAHDI_SIG_CAS	| \
-					DAHDI_SIG_SF	  \
-				)
-#else
 #define	BRI_DCHAN_SIGCAP	DAHDI_SIG_HARDHDLC
-#endif
 #define	BRI_BCHAN_SIGCAP	(DAHDI_SIG_CLEAR | DAHDI_SIG_DACS)

 #define	IS_NT(xpd)		(PHONEDEV(xpd).direction == TO_PHONE)
@@ -218,13 +207,7 @@ struct BRI_priv_data {
 	/*
 	 * D-Chan: buffers + extra state info.
 	 */
-#ifdef	CONFIG_DAHDI_BRI_DCHANS
-	int				dchan_r_idx;
-	byte				dchan_rbuf[DCHAN_BUFSIZE];
-#else
 	atomic_t			hdlc_pending;
-#endif
-	byte				dchan_tbuf[DCHAN_BUFSIZE];
 	bool				txframe_begin;

 	uint				tick_counter;
@@ -438,22 +421,6 @@ static void nt_activation(xpd_t *xpd, bool on)
 /*
 * D-Chan receive
 */
-static void bri_hdlc_abort(xpd_t *xpd, struct dahdi_chan *dchan, int event)
-{
-	struct BRI_priv_data	*priv;
-
-	priv = xpd->priv;
-	BUG_ON(!priv);
-#ifdef	CONFIG_DAHDI_BRI_DCHANS
-	if(debug & DBG_COMMANDS)
-		dump_hex_buf(xpd, "D-Chan(abort) RX: dchan_rbuf",
-			priv->dchan_rbuf, priv->dchan_r_idx);
-	priv->dchan_r_idx = 0;
-#else
-	dahdi_hdlc_abort(dchan, event);
-#endif
-}
-
 static int bri_check_stat(xpd_t *xpd, struct dahdi_chan *dchan, byte *buf, int len)
 {
 	struct BRI_priv_data	*priv;
@@ -461,21 +428,11 @@ static int bri_check_stat(xpd_t *xpd, struct dahdi_chan *dchan, byte *buf, int l

 	priv = xpd->priv;
 	BUG_ON(!priv);
-#ifdef	CONFIG_DAHDI_BRI_DCHANS
-	if(priv->dchan_r_idx < 4) {
-		XPD_NOTICE(xpd, "D-Chan RX short frame (dchan_r_idx=%d)\n",
-			priv->dchan_r_idx);
-		dump_hex_buf(xpd, "D-Chan RX:    current packet", buf, len);
-		bri_hdlc_abort(xpd, dchan, DAHDI_EVENT_ABORT);
-		return -EPROTO;
-	}
-#else
 	if(len <= 0) {
 		XPD_NOTICE(xpd, "D-Chan RX DROP: short frame (len=%d)\n", len);
-		bri_hdlc_abort(xpd, dchan, DAHDI_EVENT_ABORT);
+		dahdi_hdlc_abort(dchan, DAHDI_EVENT_ABORT);
 		return -EPROTO;
 	}
-#endif
 	status = buf[len-1];
 	if(status) {
 		int	event = DAHDI_EVENT_ABORT;
@@ -487,132 +444,12 @@ static int bri_check_stat(xpd_t *xpd, struct dahdi_chan *dchan, byte *buf, int l
 			event = DAHDI_EVENT_BADFCS;
 		}
 		dump_hex_buf(xpd, "D-Chan RX:    current packet", buf, len);
-		bri_hdlc_abort(xpd, dchan, event);
+		dahdi_hdlc_abort(dchan, event);
 		return -EPROTO;
 	}
 	return 0;
 }

-static int bri_hdlc_putbuf(xpd_t *xpd, struct dahdi_chan *dchan,
-		unsigned char *buf, int len)
-{
-#ifdef	CONFIG_DAHDI_BRI_DCHANS
-	struct BRI_priv_data	*priv;
-	byte			*dchan_buf;
-	byte			*dst;
-	int			idx;
-
-	priv = xpd->priv;
-	BUG_ON(!priv);
-	dchan_buf = dchan->readchunk;
-	idx = priv->dchan_r_idx;
-	if(idx + len >= DCHAN_BUFSIZE) {
-		XPD_ERR(xpd, "D-Chan RX overflow: %d\n", idx);
-		dump_hex_buf(xpd, "    current packet", buf, len);
-		dump_hex_buf(xpd, "    dchan_buf", dchan_buf, idx);
-		return -ENOSPC;
-	}
-	dst = dchan_buf + idx;
-	idx += len;
-	priv->dchan_r_idx = idx;
-	memcpy(dst, buf, len);
-#else
-	dahdi_hdlc_putbuf(dchan, buf, len);
-#endif
-	return 0;
-}
-
-static void bri_hdlc_finish(xpd_t *xpd, struct dahdi_chan *dchan)
-{
-	struct BRI_priv_data	*priv;
-
-	priv = xpd->priv;
-	BUG_ON(!priv);
-#ifdef	CONFIG_DAHDI_BRI_DCHANS
-	dchan->bytes2receive = priv->dchan_r_idx - 1;
-	dchan->eofrx = 1;
-#else
-	dahdi_hdlc_finish(dchan);
-#endif
-}
-
-#ifdef	CONFIG_DAHDI_BRI_DCHANS
-static int rx_dchan(xpd_t *xpd, reg_cmd_t *regcmd)
-{
-	struct BRI_priv_data	*priv;
-	byte			*src;
-	byte			*dst;
-	byte			*dchan_buf;
-	struct dahdi_chan		*dchan;
-	uint			len;
-	bool			eoframe;
-	int			idx;
-	int			ret = 0;
-
-	src = REG_XDATA(regcmd);
-	len = regcmd->bytes;
-	eoframe = regcmd->eoframe;
-	if(len <= 0)
-		return 0;
-	if(!SPAN_REGISTERED(xpd)) /* Nowhere to copy data */
-		return 0;
-	BUG_ON(!xpd);
-	priv = xpd->priv;
-	BUG_ON(!priv);
-	xbus = xpd->xbus;
-	dchan = XPD_CHAN(xpd, 2);
-	if(!IS_OFFHOOK(xpd, 2)) {	/* D-chan is used? */
-		static int rate_limit;
-
-		if((rate_limit++ % 1000) == 0)
-			XPD_DBG(SIGNAL, xpd, "D-Chan unused\n");
-		dchan->bytes2receive = 0;
-		dchan->bytes2transmit = 0;
-		goto out;
-	}
-	dchan_buf = dchan->readchunk;
-	idx = priv->dchan_r_idx;
-	if(idx + len >= DCHAN_BUFSIZE) {
-		XPD_ERR(xpd, "D-Chan RX overflow: %d\n", idx);
-		dump_hex_buf(xpd, "    current packet", src, len);
-		dump_hex_buf(xpd, "    dchan_buf", dchan_buf, idx);
-		ret = -ENOSPC;
-		if(eoframe)
-			goto drop;
-		goto out;
-	}
-	dst = dchan_buf + idx;
-	idx += len;
-	priv->dchan_r_idx = idx;
-	memcpy(dst, src, len);
-	if(!eoframe)
-		goto out;
-	if(idx < 4) {
-		XPD_NOTICE(xpd, "D-Chan RX short frame (idx=%d)\n", idx);
-		dump_hex_buf(xpd, "D-Chan RX:    current packet", src, len);
-		dump_hex_buf(xpd, "D-Chan RX:    chan_buf", dchan_buf, idx);
-		ret = -EPROTO;
-		goto drop;
-	}
-	if((ret = bri_check_stat(xpd, dchan, dchan_buf, idx)) < 0)
-		goto drop;
-	if(debug)
-		dump_dchan_packet(xpd, 0, dchan_buf, idx /* - 3 */);	/* Print checksum? */
-	/* 
-	 * Tell Dahdi that we received idx-1 bytes. They include the data and a 2-byte checksum.
-	 * The last byte (that we don't pass on) is 0 if the checksum is correct. If it were wrong,
-	 * we would drop the packet in the "if(dchan_buf[idx-1])" above.
-	 */
-	dchan->bytes2receive = idx - 1;
-	dchan->eofrx = 1;
-	priv->dchan_rx_counter++;
-	priv->dchan_norx_ticks = 0;
-drop:
-	priv->dchan_r_idx = 0;
-out:
-	return ret;
-}
-#else
 static int rx_dchan(xpd_t *xpd, reg_cmd_t *regcmd)
 {
 	struct BRI_priv_data	*priv;
@@ -638,16 +475,10 @@ static int rx_dchan(xpd_t *xpd, reg_cmd_t *regcmd)

 		if((rate_limit++ % 1000) == 0)
 			XPD_DBG(SIGNAL, xpd, "D-Chan unused\n");
-#ifdef	CONFIG_DAHDI_BRI_DCHANS
-		dchan->bytes2receive = 0;
-		dchan->bytes2transmit = 0;
-#endif
 		goto out;
 	}
 	XPD_DBG(GENERAL, xpd, "D-Chan RX: eoframe=%d len=%d\n", eoframe, len);
-	ret = bri_hdlc_putbuf(xpd, dchan, src, (eoframe) ? len - 1 : len);
-	if(ret < 0)
-		goto out;
+	dahdi_hdlc_putbuf(dchan, src, (eoframe) ? len - 1 : len);
 	if(!eoframe)
 		goto out;
 	if((ret = bri_check_stat(xpd, dchan, src, len)) < 0)
@@ -657,18 +488,16 @@ static int rx_dchan(xpd_t *xpd, reg_cmd_t *regcmd)
 	 * The last byte (that we don't pass on) is 0 if the checksum is correct. If it were wrong,
 	 * we would drop the packet in the "if(src[len-1])" above.
 	 */
-	bri_hdlc_finish(xpd, dchan);
+	dahdi_hdlc_finish(dchan);
 	priv->dchan_rx_counter++;
 	priv->dchan_norx_ticks = 0;
 out:
 	return ret;
 }
-#endif

 /*
 * D-Chan transmit
 */
-#ifndef	CONFIG_DAHDI_BRI_DCHANS
 /* DAHDI calls this when it has data it wants to send to the HDLC controller */
 static void bri_hdlc_hard_xmit(struct dahdi_chan *chan)
 {
@@ -683,86 +512,129 @@ static void bri_hdlc_hard_xmit(struct dahdi_chan *chan)
 		atomic_inc(&priv->hdlc_pending);
 	}
 }
-#endif

-static int bri_hdlc_getbuf(struct dahdi_chan *dchan, unsigned char *buf,
-		unsigned int *size)
+static int send_dchan_frame(xpd_t *xpd, xframe_t *xframe, bool is_eof)
 {
-	int			len = *size;
-	int			eoframe;
-
-#ifdef	CONFIG_DAHDI_BRI_DCHANS
-	len = dchan->bytes2transmit;	/* dchan's hdlc package len */
-	if(len > *size)
-		len = *size;		/* Silent truncation */
-	eoframe = dchan->eoftx;		/* dchan's end of frame */
-	dchan->bytes2transmit = 0;
-	dchan->eoftx = 0;
-	dchan->bytes2receive = 0;
-	dchan->eofrx = 0;
-#else
-	eoframe = dahdi_hdlc_getbuf(dchan, buf, &len);
-#endif
-	*size = len;
-	return eoframe;
-}
-
-static int tx_dchan(xpd_t *xpd)
-{
-	struct BRI_priv_data	*priv;
-	struct dahdi_chan	*dchan;
-	int			len;
-	int			eoframe;
-	int			ret;
+	struct BRI_priv_data *priv;
+	int ret;

+	XPD_DBG(COMMANDS, xpd, "eoframe=%d\n", is_eof);
 	priv = xpd->priv;
-	BUG_ON(!priv);
-#ifndef	CONFIG_DAHDI_BRI_DCHANS
-	if(atomic_read(&priv->hdlc_pending) == 0)
-		return 0;
-#endif
-	if(!SPAN_REGISTERED(xpd) || !(PHONEDEV(xpd).span.flags & DAHDI_FLAG_RUNNING))
-		return 0;
-	dchan = XPD_CHAN(xpd, 2);
-	len = ARRAY_SIZE(priv->dchan_tbuf);
-	if(len > MULTIBYTE_MAX_LEN)
-		len = MULTIBYTE_MAX_LEN;
-	eoframe = bri_hdlc_getbuf(dchan, priv->dchan_tbuf, &len);
-	if(len <= 0)
-		return 0; /* Nothing to transmit on D channel */
-	if(len > MULTIBYTE_MAX_LEN) {
-		XPD_ERR(xpd, "%s: len=%d. need to split. Unimplemented.\n", __FUNCTION__, len);
-		dump_hex_buf(xpd, "D-Chan TX:", priv->dchan_tbuf, len);
-		return -EINVAL;
-	}
-	if(!test_bit(HFC_L1_ACTIVATED, &priv->l1_flags) && !test_bit(HFC_L1_ACTIVATING, &priv->l1_flags)) {
+	if (!test_bit(HFC_L1_ACTIVATED, &priv->l1_flags)
+			&& !test_bit(HFC_L1_ACTIVATING, &priv->l1_flags)) {
 		XPD_DBG(SIGNAL, xpd, "Want to transmit: Kick D-Channel transmiter\n");
-		if(! IS_NT(xpd))
+		if (!IS_NT(xpd))
 			te_activation(xpd, 1);
 		else
 			nt_activation(xpd, 1);
 	}
-	if(debug)
-		dump_dchan_packet(xpd, 1, priv->dchan_tbuf, len);
-	if(eoframe)
-		priv->txframe_begin = 1;
-	else
-		priv->txframe_begin = 0;
-	XPD_DBG(COMMANDS, xpd, "eoframe=%d len=%d\n", eoframe, len);
-	ret = send_multibyte_request(xpd->xbus, xpd->addr.unit, xpd->addr.subunit,
-			eoframe, priv->dchan_tbuf, len);
-	if(ret < 0)
-		XPD_NOTICE(xpd, "%s: failed sending xframe\n", __FUNCTION__);
-	if(eoframe) {
-#ifndef	CONFIG_DAHDI_BRI_DCHANS
+	dump_xframe("send_dchan_frame", xpd->xbus, xframe, debug);
+	ret = send_cmd_frame(xpd->xbus, xframe);
+	if (ret < 0)
+		XPD_ERR(xpd, "%s: failed sending xframe\n", __func__);
+	if (is_eof) {
 		atomic_dec(&priv->hdlc_pending);
-#endif
 		priv->dchan_tx_counter++;
-	}
+		priv->txframe_begin = 1;
+	} else
+		priv->txframe_begin = 0;
 	priv->dchan_notx_ticks = 0;
 	return ret;
 }

+/*
+ * Fill a single multibyte REGISTER_REQUEST
+ */
+static void fill_multibyte(xpd_t *xpd, xpacket_t *pack, bool eoframe,
+		char *buf, int len)
+{
+	reg_cmd_t *reg_cmd;
+	char *p;
+
+	XPACKET_INIT(pack, GLOBAL, REGISTER_REQUEST, xpd->xbus_idx, 0, 0);
+	XPACKET_LEN(pack) = RPACKET_SIZE(GLOBAL, REGISTER_REQUEST);
+	reg_cmd = &RPACKET_FIELD(pack, GLOBAL, REGISTER_REQUEST, reg_cmd);
+	reg_cmd->bytes = len;
+	reg_cmd->is_multibyte = 1;
+	reg_cmd->portnum = xpd->addr.subunit;
+	reg_cmd->eoframe = eoframe;
+	p = REG_XDATA(reg_cmd);
+	memcpy(p, buf, len);
+	if (debug)
+		dump_dchan_packet(xpd, 1, p, len);
+}
+
+/*
+ * Transmit available D-Channel frames
+ *
+ * - FPGA firmware expect to get this as a sequence of REGISTER_REQUEST
+ *   multibyte commands.
+ * - The payload of each command is limited to MULTIBYTE_MAX_LEN bytes.
+ * - We batch several REGISTER_REQUEST packets into a single xframe.
+ * - The xframe is terminated when we get a bri "end of frame"
+ *   or when the xframe is full (should not happen).
+ */
+static int tx_dchan(xpd_t *xpd)
+{
+	struct BRI_priv_data *priv;
+	xframe_t *xframe;
+	xpacket_t *pack;
+	int packet_count;
+	int eoframe;
+	int ret;
+
+	priv = xpd->priv;
+	BUG_ON(!priv);
+	if (atomic_read(&priv->hdlc_pending) == 0)
+		return 0;
+	if (!SPAN_REGISTERED(xpd) ||
+			!(PHONEDEV(xpd).span.flags & DAHDI_FLAG_RUNNING))
+		return 0;
+	/* Allocate frame */
+	xframe = ALLOC_SEND_XFRAME(xpd->xbus);
+	if (!xframe) {
+		XPD_NOTICE(xpd, "%s: failed to allocate new xframe\n",
+			__func__);
+		return -ENOMEM;
+	}
+	for (packet_count = 0, eoframe = 0; !eoframe; packet_count++) {
+		int packet_len = RPACKET_SIZE(GLOBAL, REGISTER_REQUEST);
+		char buf[MULTIBYTE_MAX_LEN];
+		int len = MULTIBYTE_MAX_LEN;
+
+		/* Reserve packet */
+		pack = xframe_next_packet(xframe, packet_len);
+		if (!pack) {
+			BUG_ON(!packet_count);
+			/*
+			 * A split. Send what we currently have.
+			 */
+			XPD_NOTICE(xpd,
+				"%s: xframe is full (%d packets)\n",
+				__func__, packet_count);
+			break;
+		}
+		/* Get data from DAHDI */
+		eoframe = dahdi_hdlc_getbuf(XPD_CHAN(xpd, 2), buf, &len);
+		if (len <= 0) {
+			/*
+			 * Already checked priv->hdlc_pending,
+			 * should never get here.
+			 */
+			if (printk_ratelimit())
+				XPD_ERR(xpd,
+					"%s: hdlc_pending, but nothing to transmit?\n",
+					__func__);
+			FREE_SEND_XFRAME(xpd->xbus, xframe);
+			return -EINVAL;
+		}
+		BUG_ON(len > MULTIBYTE_MAX_LEN);
+		fill_multibyte(xpd, pack, eoframe != 0, buf, len);
+	}
+	return send_dchan_frame(xpd, xframe, eoframe != 0);
+	return ret;
+}
+
 /*---------------- BRI: Methods -------------------------------------------*/

 static void bri_proc_remove(xbus_t *xbus, xpd_t *xpd)
@@ -853,9 +725,7 @@ static const struct dahdi_span_ops BRI_span_ops = {
 	.chanconfig = bri_chanconfig,
 	.startup = bri_startup,
 	.shutdown = bri_shutdown,
-#ifndef	CONFIG_DAHDI_BRI_DCHANS
 	.hdlc_hard_xmit = bri_hdlc_hard_xmit,
-#endif
 	.open = xpp_open,
 	.close = xpp_close,
 	.hooksig = xpp_hooksig,	/* Only with RBS bits */
@@ -903,19 +773,7 @@ static int BRI_card_dahdi_preregistration(xpd_t *xpd, bool on)
 			cur_chan->sigcap = BRI_DCHAN_SIGCAP;
 			clear_bit(DAHDI_FLAGBIT_HDLC, &cur_chan->flags);
 			priv->txframe_begin = 1;
-#ifdef	CONFIG_DAHDI_BRI_DCHANS
-			priv->dchan_r_idx = 0;
-			set_bit(DAHDI_FLAGBIT_BRIDCHAN, &cur_chan->flags);
-			/* Setup big buffers for D-Channel rx/tx */
-			cur_chan->readchunk = priv->dchan_rbuf;
-			cur_chan->writechunk = priv->dchan_tbuf;
-
-			cur_chan->maxbytes2transmit = MULTIBYTE_MAX_LEN;
-			cur_chan->bytes2transmit = 0;
-			cur_chan->bytes2receive = 0;
-#else
 			atomic_set(&priv->hdlc_pending, 0);
-#endif
 		} else {
 			cur_chan->sigcap = BRI_BCHAN_SIGCAP;
 		}
@@ -1145,15 +1003,6 @@ static int BRI_card_open(xpd_t *xpd, lineno_t pos)
 static int BRI_card_close(xpd_t *xpd, lineno_t pos)
 {
 	/* Clear D-Channel pending data */
-#ifdef	CONFIG_DAHDI_BRI_DCHANS
-	struct dahdi_chan	*chan = XPD_CHAN(xpd, pos);
-
-	/* Clear D-Channel pending data */
-	chan->bytes2receive = 0;
-	chan->eofrx = 0;
-	chan->bytes2transmit = 0;
-	chan->eoftx = 0;
-#endif
 	if(pos == 2) {
 		LINE_DBG(SIGNAL, xpd, pos, "ONHOOK the whole span\n");
 		BIT_CLR(PHONEDEV(xpd).offhook_state, 0);
@@ -1201,6 +1050,8 @@ static int bri_spanconfig(struct file *file, struct dahdi_span *span,
 		framingstr, codingstr, crcstr,
 		lc->lineconfig,
 		lc->sync);
+	PHONEDEV(xpd).timing_priority = lc->sync;
+	elect_syncer("BRI-spanconfig");
 	/*
 	 * FIXME: validate
 	 */
@@ -1252,9 +1103,6 @@ static int bri_startup(struct file *file, struct dahdi_span *span)
 		 *
 		 * Don't Get Mad, Get Even:  Now we override dahdi :-)
 		 */
-#ifdef	CONFIG_DAHDI_BRI_DCHANS
-		set_bit(DAHDI_FLAGBIT_BRIDCHAN, &dchan->flags);
-#endif
 		clear_bit(DAHDI_FLAGBIT_HDLC, &dchan->flags);
 	}
 	return 0;
@@ -1428,6 +1276,18 @@ static void BRI_card_pcm_tospan(xpd_t *xpd, xpacket_t *pack)
 	}
 }

+static int BRI_timing_priority(xpd_t *xpd)
+{
+	struct BRI_priv_data	*priv;
+
+	priv = xpd->priv;
+	BUG_ON(!priv);
+	if (priv->layer1_up)
+		return PHONEDEV(xpd).timing_priority;
+	XPD_DBG(SYNC, xpd, "No timing priority (no layer1)\n");
+	return -ENOENT;
+}
+
 int BRI_echocancel_timeslot(xpd_t *xpd, int pos)
 {
 	return xpd->addr.subunit * 4 + pos;
@@ -1695,7 +1555,7 @@ static const struct phoneops	bri_phoneops = {
 	.card_pcm_recompute	= BRI_card_pcm_recompute,
 	.card_pcm_fromspan	= BRI_card_pcm_fromspan,
 	.card_pcm_tospan	= BRI_card_pcm_tospan,
-	.card_timing_priority	= generic_timing_priority,
+	.card_timing_priority	= BRI_timing_priority,
 	.echocancel_timeslot	= BRI_echocancel_timeslot,
 	.echocancel_setmask	= BRI_echocancel_setmask,
 	.card_ioctl	= BRI_card_ioctl,
@@ -1775,9 +1635,6 @@ static int proc_bri_info_read(char *page, char **start, off_t off, int count, in
 	} else {
 		len += sprintf(page + len, "(dead)\n");
 	}
-#ifndef	CONFIG_DAHDI_BRI_DCHANS
-	len += sprintf(page + len, "hdlc_pending=%d\n", atomic_read(&priv->hdlc_pending));
-#endif
 	len += sprintf(page + len, "dchan_notx_ticks: %d\n", priv->dchan_notx_ticks);
 	len += sprintf(page + len, "dchan_norx_ticks: %d\n", priv->dchan_norx_ticks);
 	len += sprintf(page + len, "LED: %-10s = %d\n", "GREEN", priv->ledstate[GREEN_LED]);
@@ -1797,22 +1654,6 @@ static int proc_bri_info_read(char *page, char **start, off_t off, int count, in
 }
 #endif

-static DRIVER_ATTR_READER(dchan_hardhdlc_show, drv,buf)
-{
-	int			len = 0;
-
-#if	defined(CONFIG_DAHDI_BRI_DCHANS)
-	len += sprintf(buf + len, "0\n");
-#elif	defined(DAHDI_SIG_HARDHDLC)
-	len += sprintf(buf + len, "1\n");
-#else
-#error Cannot build BRI without BRISTUFF or HARDHDLC supprt
-#endif
-	return len;
-}
-
-static	DRIVER_ATTR(dchan_hardhdlc,S_IRUGO,dchan_hardhdlc_show,NULL);
-
 static int bri_xpd_probe(struct device *dev)
 {
 	xpd_t	*xpd;
@@ -1855,18 +1696,7 @@ static int __init card_bri_startup(void)

 	if((ret = xpd_driver_register(&bri_driver.driver)) < 0)
 		return ret;
-	ret = driver_create_file(&bri_driver.driver, &driver_attr_dchan_hardhdlc);
-	if(ret < 0)
-		return ret;
 	INFO("revision %s\n", XPP_VERSION);
-#if	defined(CONFIG_DAHDI_BRI_DCHANS)
-	INFO("FEATURE: WITH BRISTUFF\n");
-#elif	defined(DAHDI_SIG_HARDHDLC)
-	INFO("FEATURE: WITH HARDHDLC\n");
-#else
-#error Cannot build BRI without BRISTUFF or HARDHDLC supprt
-#endif
-
 	xproto_register(&PROTO_TABLE(BRI));
 	return 0;
 }
@@ -1875,7 +1705,6 @@ static void __exit card_bri_cleanup(void)
 {
 	DBG(GENERAL, "\n");
 	xproto_unregister(&PROTO_TABLE(BRI));
-	driver_remove_file(&bri_driver.driver, &driver_attr_dchan_hardhdlc);
 	xpd_driver_unregister(&bri_driver.driver);
 }

--- a/drivers/dahdi/xpp/card_fxs.c
+++ b/drivers/dahdi/xpp/card_fxs.c
@@ -42,6 +42,8 @@ static DEF_PARM(uint, poll_digital_inputs, 1000, 0644, "Poll Digital Inputs");

 static DEF_PARM_BOOL(vmwi_ioctl, 1, 0644, "Asterisk support VMWI notification via ioctl");
 static DEF_PARM_BOOL(ring_trapez, 0, 0664, "Use trapezoid ring type");
+static DEF_PARM_BOOL(lower_ringing_noise, 0, 0664,
+		"Lower ringing noise (may loose CallerID)");

 /* Signaling is opposite (fxo signalling for fxs card) */
 #if 1
@@ -134,6 +136,8 @@ struct FXS_priv_data {
 	xpp_line_t		want_dtmf_events;	/* what dahdi want */
 	xpp_line_t		want_dtmf_mute;		/* what dahdi want */
 	xpp_line_t		prev_key_down;		/* DTMF down sets the bit */
+	xpp_line_t		neon_blinking;
+	xpp_line_t vbat_h;		/* High voltage */
 	struct timeval		prev_key_time[CHANNELS_PERXPD];
 	int			led_counter[NUM_LEDS][CHANNELS_PERXPD];
 	int			ohttimer[CHANNELS_PERXPD];
@@ -156,24 +160,48 @@ struct FXS_priv_data {
 #define	LED_BLINK_RING			(1000/8)	/* in ticks */

 /*---------------- FXS: Static functions ----------------------------------*/
-static int linefeed_control(xbus_t *xbus, xpd_t *xpd, lineno_t chan, enum fxs_state value)
-{
-	struct FXS_priv_data	*priv;
-
-	priv = xpd->priv;
-	LINE_DBG(SIGNAL, xpd, chan, "value=0x%02X\n", value);
-	priv->lasttxhook[chan] = value;
-	return SLIC_DIRECT_REQUEST(xbus, xpd, chan, SLIC_WRITE, 0x40, value);
-}
-
 static int do_chan_power(xbus_t *xbus, xpd_t *xpd, lineno_t chan, bool on)
 {
-	int		value = (on) ? REG_BATTERY_BATSL : 0x00;
+	struct FXS_priv_data *priv;
+	unsigned long *p;
+	int was;

 	BUG_ON(!xbus);
 	BUG_ON(!xpd);
+	priv = xpd->priv;
+	p = (unsigned long *)&priv->vbat_h;
+	if (on)
+		was = test_and_set_bit(chan, p) != 0;
+	else
+		was = test_and_clear_bit(chan, p) != 0;
+	if (was == on) {
+		LINE_DBG(SIGNAL, xpd, chan,
+			"%s (same, ignored)\n", (on) ? "up" : "down");
+		return 0;
+	}
 	LINE_DBG(SIGNAL, xpd, chan, "%s\n", (on) ? "up" : "down");
-	return SLIC_DIRECT_REQUEST(xbus, xpd, chan, SLIC_WRITE, REG_BATTERY, value);
+	return SLIC_DIRECT_REQUEST(xbus, xpd, chan, SLIC_WRITE, REG_BATTERY,
+			(on) ? REG_BATTERY_BATSL : 0x00);
+}
+
+static int linefeed_control(xbus_t *xbus, xpd_t *xpd, lineno_t chan, enum fxs_state value)
+{
+	struct FXS_priv_data *priv;
+	bool want_vbat_h;
+
+	priv = xpd->priv;
+	/*
+	 * Should we drop vbat_h only during actuall ring?
+	 *   - It would lower the noise caused to other channels by
+	 *     group ringing
+	 *   - But it may also stop CallerID from passing through the SLIC
+	 */
+	want_vbat_h = value == FXS_LINE_RING;
+	if (lower_ringing_noise || want_vbat_h)
+		do_chan_power(xbus, xpd, chan, want_vbat_h);
+	LINE_DBG(SIGNAL, xpd, chan, "value=0x%02X\n", value);
+	priv->lasttxhook[chan] = value;
+	return SLIC_DIRECT_REQUEST(xbus, xpd, chan, SLIC_WRITE, 0x40, value);
 }

 static void vmwi_search(xpd_t *xpd, lineno_t pos, bool on)
@@ -386,6 +414,8 @@ static xpd_t *FXS_card_new(xbus_t *xbus, int unit, int subunit, const xproto_tab
 	int			regular_channels;
 	struct FXS_priv_data	*priv;
 	int			i;
+	int			d_inputs = 0;
+	int			d_outputs = 0;

 	if(!to_phone) {
 		XBUS_NOTICE(xbus,
@@ -398,16 +428,30 @@ static xpd_t *FXS_card_new(xbus_t *xbus, int unit, int subunit, const xproto_tab
 	else
 		regular_channels = min(8, subunit_ports);
 	channels = regular_channels;
-	if(unit == 0)
+	/* Calculate digital inputs/outputs */
+	if(unit == 0 && subtype != 4) {
 		channels += 6;	/* 2 DIGITAL OUTPUTS, 4 DIGITAL INPUTS */
+		d_inputs = LINES_DIGI_INP;
+		d_outputs = LINES_DIGI_OUT;
+	}
 	xpd = xpd_alloc(xbus, unit, subunit, subtype, subunits, sizeof(struct FXS_priv_data), proto_table, channels);
 	if(!xpd)
 		return NULL;
-	if(unit == 0) {
-		XBUS_DBG(GENERAL, xbus, "First XPD detected. Initialize digital outputs/inputs\n");
-		PHONEDEV(xpd).digital_outputs = BITMASK(LINES_DIGI_OUT) << regular_channels;
-		PHONEDEV(xpd).digital_inputs = BITMASK(LINES_DIGI_INP) << (regular_channels + LINES_DIGI_OUT);
-	}
+	/* Initialize digital inputs/outputs */
+	if (d_inputs) {
+		XBUS_DBG(GENERAL, xbus, "Initialize %d digital inputs\n",
+			d_inputs);
+		PHONEDEV(xpd).digital_inputs =
+			BITMASK(d_inputs) << (regular_channels + d_outputs);
+	} else
+		XBUS_DBG(GENERAL, xbus, "No digital inputs\n");
+	if (d_outputs) {
+		XBUS_DBG(GENERAL, xbus, "Initialize %d digital outputs\n",
+			d_outputs);
+		PHONEDEV(xpd).digital_outputs =
+			BITMASK(d_outputs) << regular_channels;
+	} else
+		XBUS_DBG(GENERAL, xbus, "No digital outputs\n");
 	PHONEDEV(xpd).direction = TO_PHONE;
 	xpd->type_name = "FXS";
 	if(fxs_proc_create(xbus, xpd) < 0)
@@ -548,12 +592,16 @@ static int FXS_card_dahdi_postregistration(xpd_t *xpd, bool on)
 */
 static void __do_mute_dtmf(xpd_t *xpd, int pos, bool muteit)
 {
+	struct FXS_priv_data	*priv;
+
+	priv = xpd->priv;
 	LINE_DBG(SIGNAL, xpd, pos, "%s\n", (muteit) ? "MUTE" : "UNMUTE");
 	if(muteit)
 		BIT_SET(PHONEDEV(xpd).mute_dtmf, pos);
 	else
 		BIT_CLR(PHONEDEV(xpd).mute_dtmf, pos);
-	CALL_PHONE_METHOD(card_pcm_recompute, xpd, 0);	/* already spinlocked */
+	/* already spinlocked */
+	CALL_PHONE_METHOD(card_pcm_recompute, xpd, priv->search_fsk_pattern);
 }

 static int set_vm_led_mode(xbus_t *xbus, xpd_t *xpd, int pos,
@@ -568,6 +616,7 @@ static int set_vm_led_mode(xbus_t *xbus, xpd_t *xpd, int pos,
 	if (VMWI_NEON(priv, pos) && msg_waiting) {
 		/* A write to register 0x40 will now turn on/off the VM led */
 		LINE_DBG(SIGNAL, xpd, pos, "NEON\n");
+		BIT_SET(priv->neon_blinking, pos);
 		ret += SLIC_INDIRECT_REQUEST(xbus, xpd, pos, SLIC_WRITE, 0x16, 0xE8, 0x03);
 		ret += SLIC_INDIRECT_REQUEST(xbus, xpd, pos, SLIC_WRITE, 0x15, 0xEF, 0x7B);
 		ret += SLIC_INDIRECT_REQUEST(xbus, xpd, pos, SLIC_WRITE, 0x14, 0x9F, 0x00);
@@ -602,6 +651,7 @@ static int set_vm_led_mode(xbus_t *xbus, xpd_t *xpd, int pos,
 	} else {
 		/* A write to register 0x40 will now turn on/off the ringer */
 		LINE_DBG(SIGNAL, xpd, pos, "RINGER\n");
+		BIT_CLR(priv->neon_blinking, pos);

 		ret += SLIC_INDIRECT_REQUEST(xbus, xpd, pos, SLIC_WRITE, 0x16, 0x00, 0x00);
 		ret += SLIC_INDIRECT_REQUEST(xbus, xpd, pos, SLIC_WRITE, 0x15, 0x77, 0x01);
@@ -668,7 +718,7 @@ static int send_ring(xpd_t *xpd, lineno_t chan, bool on)
 	LINE_DBG(SIGNAL, xpd, chan, "%s\n", (on)?"on":"off");
 	priv = xpd->priv;
 	set_vm_led_mode(xbus, xpd, chan, 0);
-	do_chan_power(xbus, xpd, chan, on);		// Power up (for ring)
+	do_chan_power(xbus, xpd, chan, on);	/* Power up (for ring) */
 	ret = linefeed_control(xbus, xpd, chan, value);
 	if(on) {
 		MARK_BLINK(priv, chan, LED_GREEN, LED_BLINK_RING);
@@ -861,7 +911,8 @@ static int FXS_card_ioctl(xpd_t *xpd, int pos, unsigned int cmd, unsigned long a
 			if (IS_SET(PHONEDEV(xpd).digital_inputs | PHONEDEV(xpd).digital_outputs, pos))
 				return 0;	/* Nothing to do */
 			oht_pcm(xpd, pos, 1);	/* Get ready of VMWI FSK tones */
-			if(priv->lasttxhook[pos] == FXS_LINE_POL_ACTIVE) {
+			if (priv->lasttxhook[pos] == FXS_LINE_POL_ACTIVE ||
+					IS_SET(priv->neon_blinking, pos)) {
 				priv->ohttimer[pos] = val;
 				priv->idletxhookstate[pos] = FXS_LINE_POL_OHTRANS;
 				vmwi_search(xpd, pos, 1);
@@ -924,10 +975,25 @@ static int FXS_card_ioctl(xpd_t *xpd, int pos, unsigned int cmd, unsigned long a
 		case DAHDI_SETPOLARITY:
 			if (get_user(val, (int __user *)arg))
 				return -EFAULT;
-			/* Can't change polarity while ringing or when open */
+			/*
+			 * Asterisk may send us this if chan_dahdi config
+			 * has "hanguponpolarityswitch=yes" to notify
+			 * that the other side has hanged up.
+			 *
+			 * This has no effect on normal phone (but we may
+			 * be connected to another FXO equipment).
+			 * note that this chan_dahdi settings has different
+			 * meaning for FXO, where it signals polarity
+			 * reversal *detection* logic.
+			 *
+			 * It seems that sometimes we get this from
+			 * asterisk in wrong state (e.g: while ringing).
+			 * In these cases, silently ignore it.
+			 */
 			if (priv->lasttxhook[pos] == FXS_LINE_RING || priv->lasttxhook[pos] == FXS_LINE_OPEN) {
-				LINE_ERR(xpd, pos, "DAHDI_SETPOLARITY: %s Cannot change when lasttxhook=0x%X\n",
-						(val)?"ON":"OFF", priv->lasttxhook[pos]);
+				LINE_DBG(SIGNAL, xpd, pos,
+					"DAHDI_SETPOLARITY: %s Cannot change when lasttxhook=0x%X\n",
+					(val)?"ON":"OFF", priv->lasttxhook[pos]);
 				return -EINVAL;
 			}
 			LINE_DBG(SIGNAL, xpd, pos, "DAHDI_SETPOLARITY: %s\n", (val)?"ON":"OFF");
@@ -1029,7 +1095,8 @@ static void handle_linefeed(xpd_t *xpd)
 	priv = xpd->priv;
 	BUG_ON(!priv);
 	for_each_line(xpd, i) {
-		if (priv->lasttxhook[i] == FXS_LINE_RING) {
+		if (priv->lasttxhook[i] == FXS_LINE_RING &&
+				!IS_SET(priv->neon_blinking, i)) {
 			/* RINGing, prepare for OHT */
 			priv->ohttimer[i] = OHT_TIMER;
 			priv->idletxhookstate[i] = FXS_LINE_POL_OHTRANS;
@@ -1142,7 +1209,7 @@ static int FXS_card_tick(xbus_t *xbus, xpd_t *xpd)
 	priv = xpd->priv;
 	BUG_ON(!priv);
 #ifdef	POLL_DIGITAL_INPUTS
-	if(poll_digital_inputs && xpd->xbus_idx == 0) {
+	if (poll_digital_inputs && PHONEDEV(xpd).digital_inputs) {
 		if((xpd->timer_count % poll_digital_inputs) == 0)
 			poll_inputs(xpd);
 	}
@@ -1254,6 +1321,13 @@ static void process_digital_inputs(xpd_t *xpd, const reg_cmd_t *info)
 	bool		offhook = (REG_FIELD(info, data_low) & 0x1) == 0;
 	xpp_line_t	lines = BIT(info->portnum);

+	/* Sanity check */
+	if (!PHONEDEV(xpd).digital_inputs) {
+		XPD_NOTICE(xpd,
+			"%s called without digital inputs. Ignored\n",
+			__func__);
+		return;
+	}
 	/* Map SLIC number into line number */
 	for(i = 0; i < ARRAY_SIZE(input_channels); i++) {
 		int		channo = input_channels[i];
@@ -1366,7 +1440,7 @@ static int FXS_card_register_reply(xbus_t *xbus, xpd_t *xpd, reg_cmd_t *info)
 	/*
 	 * Process digital inputs polling results
 	 */
-	else if(xpd->xbus_idx == 0 && !indirect && regnum == REG_DIGITAL_IOCTRL) {
+	else if (!indirect && regnum == REG_DIGITAL_IOCTRL) {
 		process_digital_inputs(xpd, info);
 	}
 #endif
@@ -1481,11 +1555,13 @@ static int proc_fxs_info_read(char *page, char **start, off_t off, int count, in
 	spin_lock_irqsave(&xpd->lock, flags);
 	priv = xpd->priv;
 	BUG_ON(!priv);
-	len += sprintf(page + len, "%-8s %-10s %-10s %-10s\n",
+	len += sprintf(page + len, "%-8s %-10s %-10s %-10s %-10s %-10s\n",
 			"Channel",
 			"idletxhookstate",
 			"lasttxhook",
-			"ohttimer"
+			"ohttimer",
+			"neon_blinking",
+			"search_fsk_pattern"
 			);
 	for_each_line(xpd, i) {
 		char	pref;
@@ -1496,14 +1572,21 @@ static int proc_fxs_info_read(char *page, char **start, off_t off, int count, in
 			pref = 'I';
 		else
 			pref = ' ';
-		len += sprintf(page + len, "%c%7d %10d %10d %10d\n",
+		len += sprintf(page + len, "%c%7d %10d %10d %10d %10d %10d\n",
 				pref,
 				i,
 				priv->idletxhookstate[i],
 				priv->lasttxhook[i],
-				priv->ohttimer[i]
+				priv->ohttimer[i],
+				IS_SET(priv->neon_blinking, i),
+				IS_SET(priv->search_fsk_pattern, i)
 			      );
 	}
+	len += sprintf(page + len, "\n%-12s", "vbat_h:");
+	for_each_line(xpd, i) {
+		len += sprintf(page + len, "%4d",
+			test_bit(i, (unsigned long *)&priv->vbat_h));
+	}
 	len += sprintf(page + len, "\n");
 	for(led = 0; led < NUM_LEDS; led++) {
 		len += sprintf(page + len, "LED #%d", led);
--- a/drivers/dahdi/xpp/card_global.c
+++ b/drivers/dahdi/xpp/card_global.c
@@ -40,6 +40,36 @@ extern	int debug;

 /*---------------- GLOBAL PROC handling -----------------------------------*/

+static int send_magic_request(xbus_t *xbus,
+	unsigned unit, xportno_t portno, bool eoftx)
+{
+	xframe_t	*xframe;
+	xpacket_t	*pack;
+	reg_cmd_t	*reg_cmd;
+	int		ret;
+
+	/*
+	 * Zero length multibyte is legal and has special meaning for the
+	 * firmware:
+	 *   eoftx==1: Start sending us D-channel packets.
+	 *   eoftx==0: Stop sending us D-channel packets.
+	 */
+	XFRAME_NEW_CMD(xframe, pack, xbus, GLOBAL, REGISTER_REQUEST, unit);
+	reg_cmd = &RPACKET_FIELD(pack, GLOBAL, REGISTER_REQUEST, reg_cmd);
+	reg_cmd->bytes = 0;
+	reg_cmd->is_multibyte = 1;
+	reg_cmd->portnum = portno;
+	reg_cmd->eoframe = eoftx;
+	PORT_DBG(REGS, xbus, unit, portno, "Magic Packet (eoftx=%d)\n", eoftx);
+	if (debug & DBG_REGS)
+		dump_xframe(__func__, xbus, xframe, debug);
+	ret = send_cmd_frame(xbus, xframe);
+	if (ret < 0)
+		PORT_ERR(xbus, unit, portno,
+			"%s: failed sending xframe\n", __func__);
+	return ret;
+}
+
 static int parse_hexbyte(const char *buf)
 {
 	char		*endp;
@@ -155,8 +185,8 @@ static int execute_chip_command(xpd_t *xpd, const int argc, char *argv[])
 					addr_mode, argc - argno);
 			goto out;
 		}
-		ret = send_multibyte_request(xpd->xbus, xpd->addr.unit, portno,
-			addr_mode == 'm', NULL, 0);
+		ret = send_magic_request(xpd->xbus, xpd->addr.unit, portno,
+			addr_mode == 'm');
 		goto out;
 	}
 	/* Normal (non-Magic) register commands */
@@ -370,44 +400,6 @@ int xpp_register_request(xbus_t *xbus, xpd_t *xpd, xportno_t portno,
 	return ret;
 }

-int send_multibyte_request(xbus_t *xbus,
-	unsigned unit, xportno_t portno,
-	bool eoftx, byte *buf, unsigned len)
-{
-	xframe_t	*xframe;
-	xpacket_t	*pack;
-	reg_cmd_t	*reg_cmd;
-	int		ret;
-
-	/*
-	 * Zero length multibyte is legal and has special meaning for the
-	 * firmware:
-	 *   eoftx==1: Start sending us D-channel packets.
-	 *   eoftx==0: Stop sending us D-channel packets.
-	 */
-	if(len > MULTIBYTE_MAX_LEN) {
-		PORT_ERR(xbus, unit, portno, "%s: len=%d is too long. dropping.\n", __FUNCTION__, len);
-		return -EINVAL;
-	}
-	XFRAME_NEW_CMD(xframe, pack, xbus, GLOBAL, REGISTER_REQUEST, unit);
-	reg_cmd = &RPACKET_FIELD(pack, GLOBAL, REGISTER_REQUEST, reg_cmd);
-	reg_cmd->bytes = len;
-	reg_cmd->is_multibyte = 1;
-	reg_cmd->portnum = portno;
-	reg_cmd->eoframe = eoftx;
-	if(len > 0) {
-		memcpy(REG_XDATA(reg_cmd), (byte *)buf, len);
-	} else {
-		PORT_DBG(REGS, xbus, unit, portno, "Magic Packet (eoftx=%d)\n", eoftx);
-	}
-	if(debug & DBG_REGS)
-		dump_xframe(__FUNCTION__, xbus, xframe, debug);
-	ret = send_cmd_frame(xbus, xframe);
-	if(ret < 0)
-		PORT_ERR(xbus, unit, portno, "%s: failed sending xframe\n", __FUNCTION__);
-	return ret;
-}
-
 /*
 * The XPD parameter is totaly ignored by the driver and firmware as well.
 */
@@ -430,19 +422,37 @@ int send_multibyte_request(xbus_t *xbus,
 	return 0;
 }

-/* 0x23 */ HOSTCMD(GLOBAL, RESET_SYNC_COUNTERS)
+/*
+ * Wrapper for different types of xbus reset
+ */
+static int send_xbus_reset(xbus_t *xbus, uint8_t reset_mask)
 {
 	xframe_t	*xframe;
 	xpacket_t	*pack;

 	BUG_ON(!xbus);
-	//XBUS_DBG(SYNC, xbus, "\n");
-	XFRAME_NEW_CMD(xframe, pack, xbus, GLOBAL, RESET_SYNC_COUNTERS, 0);
-	RPACKET_FIELD(pack, GLOBAL, RESET_SYNC_COUNTERS, mask) = 0x10;
+	XFRAME_NEW_CMD(xframe, pack, xbus, GLOBAL, XBUS_RESET, 0);
+	RPACKET_FIELD(pack, GLOBAL, XBUS_RESET, mask) = reset_mask;
 	send_cmd_frame(xbus, xframe);
 	return 0;
 }

+/* 0x23 */ HOSTCMD(GLOBAL, RESET_SPI)
+{
+	XBUS_DBG(DEVICES, xbus, "Sending SPI reset\n");
+	/* toggle reset line */
+	send_xbus_reset(xbus, 0x04);
+	send_xbus_reset(xbus, 0x00);
+	return 0;
+}
+
+
+/* 0x23 */ HOSTCMD(GLOBAL, RESET_SYNC_COUNTERS)
+{
+	//XBUS_DBG(SYNC, xbus, "\n");
+	return send_xbus_reset(xbus, 0x10);
+}
+
 /*---------------- GLOBAL: Astribank Reply Handlers -----------------------*/

 HANDLER_DEF(GLOBAL, NULL_REPLY)
@@ -534,6 +544,7 @@ HANDLER_DEF(GLOBAL, AB_DESCRIPTION)	/* 0x08 */
 		list_add_tail(&card_desc->card_list, &worker->card_list);
 		spin_unlock_irqrestore(&worker->worker_lock, flags);
 	}
+	CALL_PROTO(GLOBAL, RESET_SPI, xbus, NULL);
 	if (!xbus_process_worker(xbus)) {
 		ret = -ENODEV;
 		goto out;
@@ -642,7 +653,6 @@ static void global_packet_dump(const char *msg, xpacket_t *pack)
 	DBG(GENERAL, "%s\n", msg);
 }

-#define	MAX_ENV_STR	40
 #define	MAX_PATH_STR	128

 int run_initialize_registers(xpd_t *xpd)
@@ -651,6 +661,7 @@ int run_initialize_registers(xpd_t *xpd)
 	xbus_t	*xbus;
 	char	busstr[MAX_ENV_STR];
 	char	busnumstr[MAX_ENV_STR];
+	char	modelstr[MAX_ENV_STR];
 	char	unitstr[MAX_ENV_STR];
 	char	subunitsstr[MAX_ENV_STR];
 	char	typestr[MAX_ENV_STR];
@@ -668,6 +679,7 @@ int run_initialize_registers(xpd_t *xpd)
 	char	*envp[] = {
 		busstr,
 		busnumstr,
+		modelstr,
 		unitstr,
 		subunitsstr,
 		typestr,
@@ -703,6 +715,7 @@ int run_initialize_registers(xpd_t *xpd)
 	}
 	snprintf(busstr, MAX_ENV_STR, "XBUS_NAME=%s", xbus->busname);
 	snprintf(busnumstr, MAX_ENV_STR, "XBUS_NUMBER=%d", xbus->num);
+	snprintf(modelstr, MAX_ENV_STR, "XBUS_MODEL_STRING=%s", xbus->transport.model_string);
 	snprintf(unitstr, MAX_ENV_STR, "UNIT_NUMBER=%d", xpd->addr.unit);
 	snprintf(typestr, MAX_ENV_STR, "UNIT_TYPE=%d", xpd->type);
 	snprintf(subunitsstr, MAX_ENV_STR, "UNIT_SUBUNITS=%d", xpd->subunits);
@@ -750,4 +763,3 @@ err:
 EXPORT_SYMBOL(sync_mode_name);
 EXPORT_SYMBOL(run_initialize_registers);
 EXPORT_SYMBOL(xpp_register_request);
-EXPORT_SYMBOL(send_multibyte_request);
--- a/drivers/dahdi/xpp/card_global.h
+++ b/drivers/dahdi/xpp/card_global.h
@@ -38,7 +38,7 @@ enum global_opcodes {
 	XPROTO_NAME(GLOBAL, SYNC_REPLY)		= 0x1A,
 /**/
 	XPROTO_NAME(GLOBAL, ERROR_CODE)		= 0x22,
-	XPROTO_NAME(GLOBAL, RESET_SYNC_COUNTERS)	= 0x23,
+	XPROTO_NAME(GLOBAL, XBUS_RESET)	= 0x23,
 	XPROTO_NAME(GLOBAL, NULL_REPLY)		= 0xFE,
 };

@@ -87,7 +87,7 @@ DEF_RPACKET_DATA(GLOBAL, SYNC_REPLY,
 DEF_RPACKET_DATA(GLOBAL, REGISTER_REPLY,
 	reg_cmd_t	regcmd;
 	);
-DEF_RPACKET_DATA(GLOBAL, RESET_SYNC_COUNTERS,
+DEF_RPACKET_DATA(GLOBAL, XBUS_RESET,
 	byte		mask;
 	);
 DEF_RPACKET_DATA(GLOBAL, ERROR_CODE,
@@ -98,6 +98,7 @@ DEF_RPACKET_DATA(GLOBAL, ERROR_CODE,

 /* 0x07 */ DECLARE_CMD(GLOBAL, AB_REQUEST);
 /* 0x19 */ DECLARE_CMD(GLOBAL, SYNC_SOURCE, enum sync_mode mode, int drift);
+/* 0x23 */ DECLARE_CMD(GLOBAL, RESET_SPI);
 /* 0x23 */ DECLARE_CMD(GLOBAL, RESET_SYNC_COUNTERS);

 int xpp_register_request(xbus_t *xbus, xpd_t *xpd, xportno_t portno,
--- a/drivers/dahdi/xpp/card_pri.c
+++ b/drivers/dahdi/xpp/card_pri.c
@@ -1019,6 +1019,17 @@ static int pri_lineconfig(xpd_t *xpd, int lineconfig)
 	}
 #endif
 	if(force_cas) {
+		if(priv->pri_protocol == PRI_PROTO_E1) {
+			int	rs1 = 0x0B;
+
+			/*
+			 * Set correct X1-X3 bits in the E1 CAS MFAS
+			 * They are unused in E1 and should be 1
+			 */
+			XPD_DBG(GENERAL, xpd, "%s: rs1(0x%02X) = 0x%02X\n",
+				__FUNCTION__, REG_RS1_E, rs1);
+			write_subunit(xpd, REG_RS1_E, rs1);
+		}
 		xsp |= REG_XSP_E_CASEN;	/* Same as REG_FMR5_T_EIBR for T1 */
 	}
 	XPD_DBG(GENERAL, xpd, "%s: xsp(0x%02X) = 0x%02X\n", __FUNCTION__, REG_XSP_E, xsp);
@@ -1424,14 +1435,17 @@ static int PRI_card_ioctl(xpd_t *xpd, int pos, unsigned int cmd, unsigned long a
 		return -ENODEV;
 	chan = XPD_CHAN(xpd, pos);
 	switch (cmd) {
+		/*
+		 * Asterisk may send FXS type ioctl()'s to us:
+		 *   - Some are sent to everybody (DAHDI_TONEDETECT)
+		 *   - Some are sent because we may be in CAS mode
+		 *     (FXS signalling)
+		 * Ignore them.
+		 */
 		case DAHDI_TONEDETECT:
-			/*
-			 * Asterisk call all span types with this (FXS specific)
-			 * call. Silently ignore it.
-			 */
 			LINE_DBG(SIGNAL, xpd, pos, "PRI: TONEDETECT (%s)\n",
 				(chan->flags & DAHDI_FLAG_AUDIO) ?
-					"AUDIO" : "SILENCE");
+				"AUDIO" : "SILENCE");
 			return -ENOTTY;
 		case DAHDI_ONHOOKTRANSFER:
 			LINE_DBG(SIGNAL, xpd, pos, "PRI: ONHOOKTRANSFER\n");
@@ -1442,6 +1456,10 @@ static int PRI_card_ioctl(xpd_t *xpd, int pos, unsigned int cmd, unsigned long a
 		case DAHDI_VMWI_CONFIG:
 			LINE_DBG(SIGNAL, xpd, pos, "PRI: VMWI_CONFIG\n");
 			return -ENOTTY;
+		case DAHDI_SETPOLARITY:
+			LINE_DBG(SIGNAL, xpd, pos, "PRI: SETPOLARITY\n");
+			return -ENOTTY;
+		/* report on really bad ioctl()'s */
 		default:
 			report_bad_ioctl(THIS_MODULE->name, xpd, pos, cmd);
 			return -ENOTTY;
--- a/drivers/dahdi/xpp/firmwares/FPGA_1141.hex
+++ b/drivers/dahdi/xpp/firmwares/FPGA_1141.hex
--- a/drivers/dahdi/xpp/firmwares/FPGA_1151.hex
+++ b/drivers/dahdi/xpp/firmwares/FPGA_1151.hex
--- a/drivers/dahdi/xpp/firmwares/FPGA_1161.201.hex
+++ b/drivers/dahdi/xpp/firmwares/FPGA_1161.201.hex
--- a/drivers/dahdi/xpp/firmwares/FPGA_1161.hex
+++ b/drivers/dahdi/xpp/firmwares/FPGA_1161.hex
--- a/drivers/dahdi/xpp/firmwares/FPGA_FXS.hex
+++ b/drivers/dahdi/xpp/firmwares/FPGA_FXS.hex
--- a/drivers/dahdi/xpp/firmwares/Makefile
+++ b/drivers/dahdi/xpp/firmwares/Makefile
@@ -1,10 +1,12 @@
 # Install firmwares and initialization scripts for the Astribank
 # drivers

-FPGA_FW		= FPGA_FXS.hex FPGA_1141.hex FPGA_1151.hex FPGA_1161.hex
+USB_FW		= USB_FW.hex USB_FW.201.hex USB_RECOV.hex
+FPGA_FW		= FPGA_FXS.hex FPGA_1141.hex FPGA_1151.hex FPGA_1161.hex  \
+		  FPGA_1161.201.hex
 PIC_FW		= PIC_TYPE_1.hex PIC_TYPE_2.hex PIC_TYPE_3.hex PIC_TYPE_4.hex  
 OCT_FW		= $(wildcard OCT6104E-256D.ima)
-FIRMWARES	= USB_FW.hex $(FPGA_FW) $(PIC_FW) $(OCT_FW)
+FIRMWARES	= $(USB_FW) $(FPGA_FW) $(PIC_FW) $(OCT_FW)
 PROTO_VER	= 30
 SCRIPTS_BASE	= $(patsubst %,init_card_%_$(PROTO_VER),1 2 3 4 5)
 SCRIPTS		= $(SCRIPTS_BASE:%=../%)
--- a/drivers/dahdi/xpp/firmwares/PIC_TYPE_1.hex
+++ b/drivers/dahdi/xpp/firmwares/PIC_TYPE_1.hex
@@ -1,5 +1,5 @@
 #        
-# $Id: PIC_TYPE_1.hex 7498 2009-11-17 11:38:56Z dima $
+# $Id: PIC_TYPE_1.hex 9841 2011-09-08 17:00:23Z dima $
 #        
 :03000000A1EA4A28
 :03000100C41C41DB
@@ -31,8 +31,8 @@
 :03001B00D00D0005
 :03001C00A17A17AF
 :03001D0080080058
-:03001E00C0710BA3
-:03001F0016603830
+:03001E00C0010B13
+:03001F0019A038ED
 :03002000743C0627
 :03002100A26D804D
 :03002200C01024E7
@@ -42,370 +42,370 @@
 :03002600C03030B7
 :0300270018C901F4
 :030028006432043B
-:03002900A4C03040
+:03002900A4A03060
 :03002A0020C901E9
 :03002B007432022A
-:03002C00AFA03052
-:03002D0020990116
-:03002E00021C8031
-:03002F00C40FFFFC
-:03003000D8016490
-:03003100024C106E
-:03003200C00FFFFD
-:0300330002215057
-:03003400201D0884
-:030035000306B906
-:03003600901D100A
-:0300370020402244
-:03003800030201BF
-:03003900901030F4
-:03003A0020290179
-:03003B00030204B9
-:03003C00901030F1
-:03003D00C11901E5
-:03003E00190202A2
-:03003F00643030FA
-:03004000A45901BF
-:03004100C22800D2
-:030042001902148C
-:03004300743E7098
-:03004400A483088A
-:03004500209308FD
-:030046001253084A
-:03004700A4B30857
-:03004800209027DE
-:03004900FFF800BD
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--- a/drivers/dahdi/xpp/firmwares/PIC_TYPE_2.hex
+++ b/drivers/dahdi/xpp/firmwares/PIC_TYPE_2.hex
@@ -1,5 +1,5 @@
 #        
-# $Id: PIC_TYPE_2.hex 7107 2009-05-18 12:35:20Z dima $
+# $Id: PIC_TYPE_2.hex 9732 2011-08-24 19:13:55Z dima $
 #
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--- a/drivers/dahdi/xpp/firmwares/USB_FW.201.hex
+++ b/drivers/dahdi/xpp/firmwares/USB_FW.201.hex
@@ -0,0 +1,578 @@
+#
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--- a/drivers/dahdi/xpp/firmwares/USB_FW.hex
+++ b/drivers/dahdi/xpp/firmwares/USB_FW.hex
--- a/drivers/dahdi/xpp/firmwares/USB_RECOV.hex
+++ b/drivers/dahdi/xpp/firmwares/USB_RECOV.hex
@@ -0,0 +1,421 @@
+#
+# $Id: USB_RECOV.hex 9760 2011-09-05 12:33:27Z dima $
+#
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+:0502CA000FD5F0EA224F
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+:0C02DB00E0FCA3E0FDA3E0FEA3E0FF2296
+:0C02E700E2FC08E2FD08E2FE08E2FF2253
+:1002F300E493FC740193FD740293FE740393FF2251
+:0C030300ECF608EDF608EEF608EFF62226
+:0C030F00ECF208EDF208EEF208EFF2222A
+:00000001FF
--- a/drivers/dahdi/xpp/init_card_1_30
+++ b/drivers/dahdi/xpp/init_card_1_30
@@ -51,6 +51,7 @@ BEGIN { $init_dir = dirname($0); unshift(@INC, "$init_dir"); }
 use XppConfig $init_dir;
 my $unit_id;
 my %opts;
+my $vbat_48 = 0;

 getopts('o:', \%opts);

@@ -78,6 +79,7 @@ if (-t STDERR) {
 	foreach my $k (qw(
 			XBUS_NAME
 			XBUS_NUMBER
+			XBUS_MODEL_STRING
 			UNIT_NUMBER
 			UNIT_TYPE
 			UNIT_SUBUNITS
@@ -90,6 +92,10 @@ if (-t STDERR) {
 			die;
 		}
 	}
+	logit "XBUS_MODEL_STRING='$ENV{XBUS_MODEL_STRING}'";
+	if ($ENV{XBUS_MODEL_STRING} =~ m{.*/.*/201}) {
+		$vbat_48 = 1;
+	}
 	$chipregs = sprintf "/sys/bus/xpds/devices/%02d:%1d:0/chipregs",
 		$ENV{XBUS_NUMBER}, $ENV{UNIT_NUMBER};
 	if(! -f $chipregs) {
@@ -286,11 +292,15 @@ sub init_indirect_registers() {
 }

 sub init_early_direct_regs() {
+	my $lbv = ($vbat_48) ? "20" : "10";
+	my $vcm = ($vbat_48) ? "02" : "03";
+
 	return write_to_slic_file("#
 *	WD	08	00	# Audio Path Loopback Control
 *	WD	6C	01
 *	WD	4A	3F	# High Battery Voltage
-*	WD	4B	10	# Low Battery Voltage
+*	WD	4B	$lbv	# Low Battery Voltage
+*	WD	49	$vcm	# Common Mode Voltage (VCM)
 *	WD	40	00	# Line Feed Control
 #")
 }
@@ -578,9 +588,6 @@ __DATA__
 # On-Hook Line Voltage (VOC)
 *	WD	48 20

-# Common Mode Voltage (VCM)
-*	WD	49 03
-
 *	WS	1E	23	00 80
 *	WS	1E	24	20 03
 *	WS	1E	25	8C 00
--- a/drivers/dahdi/xpp/xbus-core.c
+++ b/drivers/dahdi/xpp/xbus-core.c
@@ -58,7 +58,7 @@ static int proc_xbus_command_write(struct file *file, const char __user *buffer,

 /* Command line parameters */
 extern int debug;
-static DEF_PARM(uint, command_queue_length, 1000, 0444, "Maximal command queue length");
+static DEF_PARM(uint, command_queue_length, 1500, 0444, "Maximal command queue length");
 static DEF_PARM(uint, poll_timeout, 1000, 0644, "Timeout (in jiffies) waiting for units to reply");
 static DEF_PARM_BOOL(rx_tasklet, 0, 0644, "Use receive tasklets");

@@ -1316,7 +1316,6 @@ xbus_t *xbus_new(struct xbus_ops *ops, ushort max_send_size, struct device *tran
 	xbus = xbus_alloc();
 	if(!xbus) {
 		ERR("%s: Failed allocating new xbus\n", __FUNCTION__);
-		module_put(THIS_MODULE);
 		return NULL;
 	}
 	snprintf(xbus->busname, XBUS_NAMELEN, "XBUS-%02d", xbus->num);
--- a/drivers/dahdi/xpp/xbus-core.h
+++ b/drivers/dahdi/xpp/xbus-core.h
@@ -29,8 +29,9 @@
 #include "xframe_queue.h"
 #include "xbus-pcm.h"

-#define	MAX_BUSES		32
-#define	XFRAME_DATASIZE		512
+#define	MAX_BUSES	128
+#define	XFRAME_DATASIZE	512
+#define	MAX_ENV_STR	40

 /* forward declarations */
 struct xbus_workqueue;
@@ -108,6 +109,7 @@ struct xbus_transport {
 	atomic_t		transport_refcount;
 	wait_queue_head_t	transport_unused;
 	spinlock_t		lock;
+	char			model_string[MAX_ENV_STR];
 };

 #define	MAX_SEND_SIZE(xbus)	((xbus)->transport.max_send_size)
--- a/drivers/dahdi/xpp/xpd.h
+++ b/drivers/dahdi/xpp/xpd.h
@@ -49,6 +49,7 @@ typedef	unsigned gfp_t;		/* Added in 2.6.14 */
 #endif
 #endif

+#if LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 31)
 /*
 * FIXME: Kludge for 2.6.19
 * bool is now defined as a proper boolean type (gcc _Bool)
@@ -58,6 +59,12 @@ typedef	unsigned gfp_t;		/* Added in 2.6.14 */
 	int name = init;	\
 	module_param(name, bool, perm);		\
 	MODULE_PARM_DESC(name, desc " [default " #init "]")
+#else
+#define	DEF_PARM_BOOL(name, init, perm, desc) \
+	bool name = init; \
+	module_param(name, bool, perm); \
+	MODULE_PARM_DESC(name, desc " [default " #init "]")
+#endif

 #define	DEF_PARM(type,name,init,perm,desc)	\
 	type name = init;	\
--- a/drivers/dahdi/xpp/xpp_dahdi.c
+++ b/drivers/dahdi/xpp/xpp_dahdi.c
@@ -747,7 +747,6 @@ int xpp_open(struct dahdi_chan *chan)
 	pos = chan->chanpos - 1;
 	if(!xpd->card_present) {
 		LINE_NOTICE(xpd, pos, "Cannot open -- device not ready\n");
-		put_xpd(__FUNCTION__, xpd);
 		return -ENODEV;
 	}
 	spin_lock_irqsave(&xbus->lock, flags);
@@ -915,6 +914,7 @@ static void echocan_free(struct dahdi_chan *chan,
 	LINE_DBG(GENERAL, xpd, pos, "mode=0x%X\n", ec->status.mode);
 	CALL_EC_METHOD(ec_set, xbus, xpd, pos, 0);
 	CALL_EC_METHOD(ec_update, xbus, xbus);
+	put_xpd(__FUNCTION__, xpd);	/* aquired in xpp_echocan_create() */
 }

 static const struct dahdi_echocan_features xpp_ec_features = {
@@ -937,7 +937,7 @@ const char *xpp_echocan_name(const struct dahdi_chan *chan)
 	xpd = chan->pvt;
 	xbus = xpd->xbus;
 	pos = chan->chanpos - 1;
-	LINE_DBG(GENERAL, xpd, pos, "%s:\n", __func__);
+	LINE_DBG(GENERAL, xpd, pos, "\n");
 	if (!ECHOOPS(xbus))
 		return NULL;
 	/*
@@ -986,6 +986,7 @@ int xpp_echocan_create(struct dahdi_chan *chan,
 	*ec = phonedev->ec[pos];
 	(*ec)->ops = &xpp_ec_ops;
 	(*ec)->features = xpp_ec_features;
+	xpd = get_xpd(__FUNCTION__, xpd);	/* Returned in echocan_free() */
 	LINE_DBG(GENERAL, xpd, pos, "(tap=%d, param_count=%d)\n",
 		ecp->tap_length, ecp->param_count);
 	ret = CALL_EC_METHOD(ec_set, xbus, xpd, pos, 1);
@@ -1181,11 +1182,6 @@ static int __init xpp_dahdi_init(void)

 	INFO("revision %s MAX_XPDS=%d (%d*%d)\n", XPP_VERSION,
 			MAX_XPDS, MAX_UNIT, MAX_SUBUNIT);
-#ifdef CONFIG_DAHDI_BRI_DCHANS
-	INFO("FEATURE: with BRISTUFF support\n");
-#else
-	INFO("FEATURE: without BRISTUFF support\n");
-#endif
 #ifdef CONFIG_PROC_FS
 	xpp_proc_toplevel = proc_mkdir(PROC_DIR, NULL);
 	if(!xpp_proc_toplevel) {
--- a/drivers/dahdi/xpp/xpp_usb.c
+++ b/drivers/dahdi/xpp/xpp_usb.c
@@ -737,6 +737,12 @@ static int xusb_probe(struct usb_interface *interface, const struct usb_device_i
 		retval = -ENOMEM;
 		goto probe_failed;
 	}
+	snprintf(xbus->transport.model_string,
+		ARRAY_SIZE(xbus->transport.model_string),
+		"usb:%04x/%04x/%x",
+		udev->descriptor.idVendor,
+		udev->descriptor.idProduct,
+		udev->descriptor.bcdDevice);
 	spin_lock_irqsave(&xusb_lock, flags);
 	for(i = 0; i < MAX_BUSES; i++) {
 		if(xusb_array[i] == NULL)
--- a/drivers/dahdi/xpp/xproto.c
+++ b/drivers/dahdi/xpp/xproto.c
@@ -75,6 +75,12 @@ static const xproto_table_t *xproto_table(xpd_type_t cardtype)
 	return xprotocol_tables[cardtype];
 }

+#if LINUX_VERSION_CODE < KERNEL_VERSION(3, 3, 0)
+#define MODULE_REFCOUNT_FORMAT "%s refcount was %d\n"
+#else
+#define MODULE_REFCOUNT_FORMAT "%s refcount was %lu\n"
+#endif
+
 const xproto_table_t *xproto_get(xpd_type_t cardtype)
 {
 	const xproto_table_t *xtable;
@@ -94,7 +100,8 @@ const xproto_table_t *xproto_get(xpd_type_t cardtype)
 	if(xtable) {
 		BUG_ON(!xtable->owner);
 #ifdef CONFIG_MODULE_UNLOAD
-		DBG(GENERAL, "%s refcount was %d\n", xtable->name, module_refcount(xtable->owner));
+		DBG(GENERAL, MODULE_REFCOUNT_FORMAT, xtable->name,
+		    module_refcount(xtable->owner));
 #endif
 		if(!try_module_get(xtable->owner)) {
 			ERR("%s: try_module_get for %s failed.\n", __FUNCTION__, xtable->name);
@@ -108,7 +115,8 @@ void xproto_put(const xproto_table_t *xtable)
 {
 	BUG_ON(!xtable);
 #ifdef CONFIG_MODULE_UNLOAD
-	DBG(GENERAL, "%s refcount was %d\n", xtable->name, module_refcount(xtable->owner));
+	DBG(GENERAL, MODULE_REFCOUNT_FORMAT, xtable->name,
+	    module_refcount(xtable->owner));
 	BUG_ON(module_refcount(xtable->owner) <= 0);
 #endif
 	module_put(xtable->owner);
--- a/include/dahdi/kernel.h
+++ b/include/dahdi/kernel.h
@@ -43,6 +43,7 @@
 #endif
 #include <linux/fs.h>
 #include <linux/kobject.h>
+#include <linux/module.h>
 #include <linux/ioctl.h>

 #ifdef CONFIG_DAHDI_NET	
@@ -69,6 +70,10 @@
 #define DAHDI_IRQ_HANDLER(a) static irqreturn_t a(int irq, void *dev_id, struct pt_regs *regs)
 #endif

+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 29)
+#define HAVE_NET_DEVICE_OPS
+#endif
+
 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,18)
 #define DAHDI_IRQ_SHARED IRQF_SHARED
 #define DAHDI_IRQ_DISABLED IRQF_DISABLED
@@ -1360,6 +1365,19 @@ static inline void list_replace(struct list_head *old, struct list_head *new)
        new->prev = old->prev;
        new->prev->next = new;
 }
+
+#ifndef WARN_ON_ONCE
+#define WARN_ON_ONCE(__condition) do {         \
+	static int __once = 1;                 \
+	if (unlikely(__condition)) {           \
+		if (__once) {                  \
+			__once = 0;            \
+			WARN_ON(0);            \
+		}                              \
+	}                                      \
+} while (0)
+#endif
+
 #if LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 14)
 #define kzalloc(a, b) kcalloc(1, a, b)
 #if LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 12)