Merge tag 'net-next-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-nextgrafted

Pull networking updates from Jakub Kicinski:
 "Core:

   - Add dedicated kmem_cache for typical/small skb->head, avoid having
     to access struct page at kfree time, and improve memory use.

   - Introduce sysctl to set default RPS configuration for new netdevs.

   - Define Netlink protocol specification format which can be used to
     describe messages used by each family and auto-generate parsers.
     Add tools for generating kernel data structures and uAPI headers.

   - Expose all net/core sysctls inside netns.

   - Remove 4s sleep in netpoll if carrier is instantly detected on
     boot.

   - Add configurable limit of MDB entries per port, and port-vlan.

   - Continue populating drop reasons throughout the stack.

   - Retire a handful of legacy Qdiscs and classifiers.

  Protocols:

   - Support IPv4 big TCP (TSO frames larger than 64kB).

   - Add IP_LOCAL_PORT_RANGE socket option, to control local port range
     on socket by socket basis.

   - Track and report in procfs number of MPTCP sockets used.

   - Support mixing IPv4 and IPv6 flows in the in-kernel MPTCP path
     manager.

   - IPv6: don't check net.ipv6.route.max_size and rely on garbage
     collection to free memory (similarly to IPv4).

   - Support Penultimate Segment Pop (PSP) flavor in SRv6 (RFC8986).

   - ICMP: add per-rate limit counters.

   - Add support for user scanning requests in ieee802154.

   - Remove static WEP support.

   - Support minimal Wi-Fi 7 Extremely High Throughput (EHT) rate
     reporting.

   - WiFi 7 EHT channel puncturing support (client & AP).

  BPF:

   - Add a rbtree data structure following the "next-gen data structure"
     precedent set by recently added linked list, that is, by using
     kfunc + kptr instead of adding a new BPF map type.

   - Expose XDP hints via kfuncs with initial support for RX hash and
     timestamp metadata.

   - Add BPF_F_NO_TUNNEL_KEY extension to bpf_skb_set_tunnel_key to
     better support decap on GRE tunnel devices not operating in collect
     metadata.

   - Improve x86 JIT's codegen for PROBE_MEM runtime error checks.

   - Remove the need for trace_printk_lock for bpf_trace_printk and
     bpf_trace_vprintk helpers.

   - Extend libbpf's bpf_tracing.h support for tracing arguments of
     kprobes/uprobes and syscall as a special case.

   - Significantly reduce the search time for module symbols by
     livepatch and BPF.

   - Enable cpumasks to be used as kptrs, which is useful for tracing
     programs tracking which tasks end up running on which CPUs in
     different time intervals.

   - Add support for BPF trampoline on s390x and riscv64.

   - Add capability to export the XDP features supported by the NIC.

   - Add __bpf_kfunc tag for marking kernel functions as kfuncs.

   - Add cgroup.memory=nobpf kernel parameter option to disable BPF
     memory accounting for container environments.

  Netfilter:

   - Remove the CLUSTERIP target. It has been marked as obsolete for
     years, and we still have WARN splats wrt races of the out-of-band
     /proc interface installed by this target.

   - Add 'destroy' commands to nf_tables. They are identical to the
     existing 'delete' commands, but do not return an error if the
     referenced object (set, chain, rule...) did not exist.

  Driver API:

   - Improve cpumask_local_spread() locality to help NICs set the right
     IRQ affinity on AMD platforms.

   - Separate C22 and C45 MDIO bus transactions more clearly.

   - Introduce new DCB table to control DSCP rewrite on egress.

   - Support configuration of Physical Layer Collision Avoidance (PLCA)
     Reconciliation Sublayer (RS) (802.3cg-2019). Modern version of
     shared medium Ethernet.

   - Support for MAC Merge layer (IEEE 802.3-2018 clause 99). Allowing
     preemption of low priority frames by high priority frames.

   - Add support for controlling MACSec offload using netlink SET.

   - Rework devlink instance refcounts to allow registration and
     de-registration under the instance lock. Split the code into
     multiple files, drop some of the unnecessarily granular locks and
     factor out common parts of netlink operation handling.

   - Add TX frame aggregation parameters (for USB drivers).

   - Add a new attr TCA_EXT_WARN_MSG to report TC (offload) warning
     messages with notifications for debug.

   - Allow offloading of UDP NEW connections via act_ct.

   - Add support for per action HW stats in TC.

   - Support hardware miss to TC action (continue processing in SW from
     a specific point in the action chain).

   - Warn if old Wireless Extension user space interface is used with
     modern cfg80211/mac80211 drivers. Do not support Wireless
     Extensions for Wi-Fi 7 devices at all. Everyone should switch to
     using nl80211 interface instead.

   - Improve the CAN bit timing configuration. Use extack to return
     error messages directly to user space, update the SJW handling,
     including the definition of a new default value that will benefit
     CAN-FD controllers, by increasing their oscillator tolerance.

  New hardware / drivers:

   - Ethernet:
      - nVidia BlueField-3 support (control traffic driver)
      - Ethernet support for imx93 SoCs
      - Motorcomm yt8531 gigabit Ethernet PHY
      - onsemi NCN26000 10BASE-T1S PHY (with support for PLCA)
      - Microchip LAN8841 PHY (incl. cable diagnostics and PTP)
      - Amlogic gxl MDIO mux

   - WiFi:
      - RealTek RTL8188EU (rtl8xxxu)
      - Qualcomm Wi-Fi 7 devices (ath12k)

   - CAN:
      - Renesas R-Car V4H

  Drivers:

   - Bluetooth:
      - Set Per Platform Antenna Gain (PPAG) for Intel controllers.

   - Ethernet NICs:
      - Intel (1G, igc):
         - support TSN / Qbv / packet scheduling features of i226 model
      - Intel (100G, ice):
         - use GNSS subsystem instead of TTY
         - multi-buffer XDP support
         - extend support for GPIO pins to E823 devices
      - nVidia/Mellanox:
         - update the shared buffer configuration on PFC commands
         - implement PTP adjphase function for HW offset control
         - TC support for Geneve and GRE with VF tunnel offload
         - more efficient crypto key management method
         - multi-port eswitch support
      - Netronome/Corigine:
         - add DCB IEEE support
         - support IPsec offloading for NFP3800
      - Freescale/NXP (enetc):
         - support XDP_REDIRECT for XDP non-linear buffers
         - improve reconfig, avoid link flap and waiting for idle
         - support MAC Merge layer
      - Other NICs:
         - sfc/ef100: add basic devlink support for ef100
         - ionic: rx_push mode operation (writing descriptors via MMIO)
         - bnxt: use the auxiliary bus abstraction for RDMA
         - r8169: disable ASPM and reset bus in case of tx timeout
         - cpsw: support QSGMII mode for J721e CPSW9G
         - cpts: support pulse-per-second output
         - ngbe: add an mdio bus driver
         - usbnet: optimize usbnet_bh() by avoiding unnecessary queuing
         - r8152: handle devices with FW with NCM support
         - amd-xgbe: support 10Mbps, 2.5GbE speeds and rx-adaptation
         - virtio-net: support multi buffer XDP
         - virtio/vsock: replace virtio_vsock_pkt with sk_buff
         - tsnep: XDP support

   - Ethernet high-speed switches:
      - nVidia/Mellanox (mlxsw):
         - add support for latency TLV (in FW control messages)
      - Microchip (sparx5):
         - separate explicit and implicit traffic forwarding rules, make
           the implicit rules always active
         - add support for egress DSCP rewrite
         - IS0 VCAP support (Ingress Classification)
         - IS2 VCAP filters (protos, L3 addrs, L4 ports, flags, ToS
           etc.)
         - ES2 VCAP support (Egress Access Control)
         - support for Per-Stream Filtering and Policing (802.1Q,
           8.6.5.1)

   - Ethernet embedded switches:
      - Marvell (mv88e6xxx):
         - add MAB (port auth) offload support
         - enable PTP receive for mv88e6390
      - NXP (ocelot):
         - support MAC Merge layer
         - support for the the vsc7512 internal copper phys
      - Microchip:
         - lan9303: convert to PHYLINK
         - lan966x: support TC flower filter statistics
         - lan937x: PTP support for KSZ9563/KSZ8563 and LAN937x
         - lan937x: support Credit Based Shaper configuration
         - ksz9477: support Energy Efficient Ethernet
      - other:
         - qca8k: convert to regmap read/write API, use bulk operations
         - rswitch: Improve TX timestamp accuracy

   - Intel WiFi (iwlwifi):
      - EHT (Wi-Fi 7) rate reporting
      - STEP equalizer support: transfer some STEP (connection to radio
        on platforms with integrated wifi) related parameters from the
        BIOS to the firmware.

   - Qualcomm 802.11ax WiFi (ath11k):
      - IPQ5018 support
      - Fine Timing Measurement (FTM) responder role support
      - channel 177 support

   - MediaTek WiFi (mt76):
      - per-PHY LED support
      - mt7996: EHT (Wi-Fi 7) support
      - Wireless Ethernet Dispatch (WED) reset support
      - switch to using page pool allocator

   - RealTek WiFi (rtw89):
      - support new version of Bluetooth co-existance

   - Mobile:
      - rmnet: support TX aggregation"

* tag 'net-next-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (1872 commits)
  page_pool: add a comment explaining the fragment counter usage
  net: ethtool: fix __ethtool_dev_mm_supported() implementation
  ethtool: pse-pd: Fix double word in comments
  xsk: add linux/vmalloc.h to xsk.c
  sefltests: netdevsim: wait for devlink instance after netns removal
  selftest: fib_tests: Always cleanup before exit
  net/mlx5e: Align IPsec ASO result memory to be as required by hardware
  net/mlx5e: TC, Set CT miss to the specific ct action instance
  net/mlx5e: Rename CHAIN_TO_REG to MAPPED_OBJ_TO_REG
  net/mlx5: Refactor tc miss handling to a single function
  net/mlx5: Kconfig: Make tc offload depend on tc skb extension
  net/sched: flower: Support hardware miss to tc action
  net/sched: flower: Move filter handle initialization earlier
  net/sched: cls_api: Support hardware miss to tc action
  net/sched: Rename user cookie and act cookie
  sfc: fix builds without CONFIG_RTC_LIB
  sfc: clean up some inconsistent indentings
  net/mlx4_en: Introduce flexible array to silence overflow warning
  net: lan966x: Fix possible deadlock inside PTP
  net/ulp: Remove redundant ->clone() test in inet_clone_ulp().
  ...

1 files changed, 740 insertions, 0 deletions

diff --git a/sound/usb/usx2y/us122l.c b/sound/usb/usx2y/us122l.c
new file mode 100644
index 000000000..e558931cc
--- /dev/null
+++ b/sound/usb/usx2y/us122l.c
@@ -0,0 +1,740 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Copyright (C) 2007, 2008 Karsten Wiese <fzu@wemgehoertderstaat.de>
+ */
+
+#include <linux/slab.h>
+#include <linux/usb.h>
+#include <linux/usb/audio.h>
+#include <linux/module.h>
+#include <sound/core.h>
+#include <sound/hwdep.h>
+#include <sound/pcm.h>
+#include <sound/initval.h>
+#define MODNAME "US122L"
+#include "usb_stream.c"
+#include "../usbaudio.h"
+#include "../midi.h"
+#include "us122l.h"
+
+MODULE_AUTHOR("Karsten Wiese <fzu@wemgehoertderstaat.de>");
+MODULE_DESCRIPTION("TASCAM "NAME_ALLCAPS" Version 0.5");
+MODULE_LICENSE("GPL");
+
+static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;	/* Index 0-max */
+static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;	/* Id for this card */
+							/* Enable this card */
+static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP;
+
+module_param_array(index, int, NULL, 0444);
+MODULE_PARM_DESC(index, "Index value for "NAME_ALLCAPS".");
+module_param_array(id, charp, NULL, 0444);
+MODULE_PARM_DESC(id, "ID string for "NAME_ALLCAPS".");
+module_param_array(enable, bool, NULL, 0444);
+MODULE_PARM_DESC(enable, "Enable "NAME_ALLCAPS".");
+
+/* driver_info flags */
+#define US122L_FLAG_US144	BIT(0)
+
+static int snd_us122l_card_used[SNDRV_CARDS];
+
+static int us122l_create_usbmidi(struct snd_card *card)
+{
+	static const struct snd_usb_midi_endpoint_info quirk_data = {
+		.out_ep = 4,
+		.in_ep = 3,
+		.out_cables =	0x001,
+		.in_cables =	0x001
+	};
+	static const struct snd_usb_audio_quirk quirk = {
+		.vendor_name =	"US122L",
+		.product_name =	NAME_ALLCAPS,
+		.ifnum =	1,
+		.type = QUIRK_MIDI_US122L,
+		.data = &quirk_data
+	};
+	struct usb_device *dev = US122L(card)->dev;
+	struct usb_interface *iface = usb_ifnum_to_if(dev, 1);
+
+	return snd_usbmidi_create(card, iface,
+				  &US122L(card)->midi_list, &quirk);
+}
+
+static int us144_create_usbmidi(struct snd_card *card)
+{
+	static const struct snd_usb_midi_endpoint_info quirk_data = {
+		.out_ep = 4,
+		.in_ep = 3,
+		.out_cables =	0x001,
+		.in_cables =	0x001
+	};
+	static const struct snd_usb_audio_quirk quirk = {
+		.vendor_name =	"US144",
+		.product_name =	NAME_ALLCAPS,
+		.ifnum =	0,
+		.type = QUIRK_MIDI_US122L,
+		.data = &quirk_data
+	};
+	struct usb_device *dev = US122L(card)->dev;
+	struct usb_interface *iface = usb_ifnum_to_if(dev, 0);
+
+	return snd_usbmidi_create(card, iface,
+				  &US122L(card)->midi_list, &quirk);
+}
+
+static void pt_info_set(struct usb_device *dev, u8 v)
+{
+	int ret;
+
+	ret = usb_control_msg_send(dev, 0, 'I',
+				   USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
+				   v, 0, NULL, 0, 1000, GFP_NOIO);
+	snd_printdd(KERN_DEBUG "%i\n", ret);
+}
+
+static void usb_stream_hwdep_vm_open(struct vm_area_struct *area)
+{
+	struct us122l *us122l = area->vm_private_data;
+
+	atomic_inc(&us122l->mmap_count);
+	snd_printdd(KERN_DEBUG "%i\n", atomic_read(&us122l->mmap_count));
+}
+
+static vm_fault_t usb_stream_hwdep_vm_fault(struct vm_fault *vmf)
+{
+	unsigned long offset;
+	struct page *page;
+	void *vaddr;
+	struct us122l *us122l = vmf->vma->vm_private_data;
+	struct usb_stream *s;
+
+	mutex_lock(&us122l->mutex);
+	s = us122l->sk.s;
+	if (!s)
+		goto unlock;
+
+	offset = vmf->pgoff << PAGE_SHIFT;
+	if (offset < PAGE_ALIGN(s->read_size)) {
+		vaddr = (char *)s + offset;
+	} else {
+		offset -= PAGE_ALIGN(s->read_size);
+		if (offset >= PAGE_ALIGN(s->write_size))
+			goto unlock;
+
+		vaddr = us122l->sk.write_page + offset;
+	}
+	page = virt_to_page(vaddr);
+
+	get_page(page);
+	mutex_unlock(&us122l->mutex);
+
+	vmf->page = page;
+
+	return 0;
+unlock:
+	mutex_unlock(&us122l->mutex);
+	return VM_FAULT_SIGBUS;
+}
+
+static void usb_stream_hwdep_vm_close(struct vm_area_struct *area)
+{
+	struct us122l *us122l = area->vm_private_data;
+
+	atomic_dec(&us122l->mmap_count);
+	snd_printdd(KERN_DEBUG "%i\n", atomic_read(&us122l->mmap_count));
+}
+
+static const struct vm_operations_struct usb_stream_hwdep_vm_ops = {
+	.open = usb_stream_hwdep_vm_open,
+	.fault = usb_stream_hwdep_vm_fault,
+	.close = usb_stream_hwdep_vm_close,
+};
+
+static int usb_stream_hwdep_open(struct snd_hwdep *hw, struct file *file)
+{
+	struct us122l	*us122l = hw->private_data;
+	struct usb_interface *iface;
+
+	snd_printdd(KERN_DEBUG "%p %p\n", hw, file);
+	if (hw->used >= 2)
+		return -EBUSY;
+
+	if (!us122l->first)
+		us122l->first = file;
+
+	if (us122l->is_us144) {
+		iface = usb_ifnum_to_if(us122l->dev, 0);
+		usb_autopm_get_interface(iface);
+	}
+	iface = usb_ifnum_to_if(us122l->dev, 1);
+	usb_autopm_get_interface(iface);
+	return 0;
+}
+
+static int usb_stream_hwdep_release(struct snd_hwdep *hw, struct file *file)
+{
+	struct us122l	*us122l = hw->private_data;
+	struct usb_interface *iface;
+
+	snd_printdd(KERN_DEBUG "%p %p\n", hw, file);
+
+	if (us122l->is_us144) {
+		iface = usb_ifnum_to_if(us122l->dev, 0);
+		usb_autopm_put_interface(iface);
+	}
+	iface = usb_ifnum_to_if(us122l->dev, 1);
+	usb_autopm_put_interface(iface);
+	if (us122l->first == file)
+		us122l->first = NULL;
+	mutex_lock(&us122l->mutex);
+	if (us122l->master == file)
+		us122l->master = us122l->slave;
+
+	us122l->slave = NULL;
+	mutex_unlock(&us122l->mutex);
+	return 0;
+}
+
+static int usb_stream_hwdep_mmap(struct snd_hwdep *hw,
+				 struct file *filp, struct vm_area_struct *area)
+{
+	unsigned long	size = area->vm_end - area->vm_start;
+	struct us122l	*us122l = hw->private_data;
+	unsigned long offset;
+	struct usb_stream *s;
+	int err = 0;
+	bool read;
+
+	offset = area->vm_pgoff << PAGE_SHIFT;
+	mutex_lock(&us122l->mutex);
+	s = us122l->sk.s;
+	read = offset < s->read_size;
+	if (read && area->vm_flags & VM_WRITE) {
+		err = -EPERM;
+		goto out;
+	}
+	snd_printdd(KERN_DEBUG "%lu %u\n", size,
+		    read ? s->read_size : s->write_size);
+	/* if userspace tries to mmap beyond end of our buffer, fail */
+	if (size > PAGE_ALIGN(read ? s->read_size : s->write_size)) {
+		snd_printk(KERN_WARNING "%lu > %u\n", size,
+			   read ? s->read_size : s->write_size);
+		err = -EINVAL;
+		goto out;
+	}
+
+	area->vm_ops = &usb_stream_hwdep_vm_ops;
+	area->vm_flags |= VM_DONTDUMP;
+	if (!read)
+		area->vm_flags |= VM_DONTEXPAND;
+	area->vm_private_data = us122l;
+	atomic_inc(&us122l->mmap_count);
+out:
+	mutex_unlock(&us122l->mutex);
+	return err;
+}
+
+static __poll_t usb_stream_hwdep_poll(struct snd_hwdep *hw,
+					  struct file *file, poll_table *wait)
+{
+	struct us122l	*us122l = hw->private_data;
+	unsigned int	*polled;
+	__poll_t	mask;
+
+	poll_wait(file, &us122l->sk.sleep, wait);
+
+	mask = EPOLLIN | EPOLLOUT | EPOLLWRNORM | EPOLLERR;
+	if (mutex_trylock(&us122l->mutex)) {
+		struct usb_stream *s = us122l->sk.s;
+
+		if (s && s->state == usb_stream_ready) {
+			if (us122l->first == file)
+				polled = &s->periods_polled;
+			else
+				polled = &us122l->second_periods_polled;
+			if (*polled != s->periods_done) {
+				*polled = s->periods_done;
+				mask = EPOLLIN | EPOLLOUT | EPOLLWRNORM;
+			} else {
+				mask = 0;
+			}
+		}
+		mutex_unlock(&us122l->mutex);
+	}
+	return mask;
+}
+
+static void us122l_stop(struct us122l *us122l)
+{
+	struct list_head *p;
+
+	list_for_each(p, &us122l->midi_list)
+		snd_usbmidi_input_stop(p);
+
+	usb_stream_stop(&us122l->sk);
+	usb_stream_free(&us122l->sk);
+}
+
+static int us122l_set_sample_rate(struct usb_device *dev, int rate)
+{
+	unsigned int ep = 0x81;
+	unsigned char data[3];
+	int err;
+
+	data[0] = rate;
+	data[1] = rate >> 8;
+	data[2] = rate >> 16;
+	err = usb_control_msg_send(dev, 0, UAC_SET_CUR,
+				   USB_TYPE_CLASS | USB_RECIP_ENDPOINT | USB_DIR_OUT,
+				   UAC_EP_CS_ATTR_SAMPLE_RATE << 8, ep, data, 3,
+				   1000, GFP_NOIO);
+	if (err)
+		snd_printk(KERN_ERR "%d: cannot set freq %d to ep 0x%x\n",
+			   dev->devnum, rate, ep);
+	return err;
+}
+
+static bool us122l_start(struct us122l *us122l,
+			 unsigned int rate, unsigned int period_frames)
+{
+	struct list_head *p;
+	int err;
+	unsigned int use_packsize = 0;
+	bool success = false;
+
+	if (us122l->dev->speed == USB_SPEED_HIGH) {
+		/* The us-122l's descriptor defaults to iso max_packsize 78,
+		   which isn't needed for samplerates <= 48000.
+		   Lets save some memory:
+		*/
+		switch (rate) {
+		case 44100:
+			use_packsize = 36;
+			break;
+		case 48000:
+			use_packsize = 42;
+			break;
+		case 88200:
+			use_packsize = 72;
+			break;
+		}
+	}
+	if (!usb_stream_new(&us122l->sk, us122l->dev, 1, 2,
+			    rate, use_packsize, period_frames, 6))
+		goto out;
+
+	err = us122l_set_sample_rate(us122l->dev, rate);
+	if (err < 0) {
+		us122l_stop(us122l);
+		snd_printk(KERN_ERR "us122l_set_sample_rate error\n");
+		goto out;
+	}
+	err = usb_stream_start(&us122l->sk);
+	if (err < 0) {
+		us122l_stop(us122l);
+		snd_printk(KERN_ERR "%s error %i\n", __func__, err);
+		goto out;
+	}
+	list_for_each(p, &us122l->midi_list)
+		snd_usbmidi_input_start(p);
+	success = true;
+out:
+	return success;
+}
+
+static int usb_stream_hwdep_ioctl(struct snd_hwdep *hw, struct file *file,
+				  unsigned int cmd, unsigned long arg)
+{
+	struct usb_stream_config cfg;
+	struct us122l *us122l = hw->private_data;
+	struct usb_stream *s;
+	unsigned int min_period_frames;
+	int err = 0;
+	bool high_speed;
+
+	if (cmd != SNDRV_USB_STREAM_IOCTL_SET_PARAMS)
+		return -ENOTTY;
+
+	if (copy_from_user(&cfg, (void __user *)arg, sizeof(cfg)))
+		return -EFAULT;
+
+	if (cfg.version != USB_STREAM_INTERFACE_VERSION)
+		return -ENXIO;
+
+	high_speed = us122l->dev->speed == USB_SPEED_HIGH;
+	if ((cfg.sample_rate != 44100 && cfg.sample_rate != 48000  &&
+	     (!high_speed ||
+	      (cfg.sample_rate != 88200 && cfg.sample_rate != 96000))) ||
+	    cfg.frame_size != 6 ||
+	    cfg.period_frames > 0x3000)
+		return -EINVAL;
+
+	switch (cfg.sample_rate) {
+	case 44100:
+		min_period_frames = 48;
+		break;
+	case 48000:
+		min_period_frames = 52;
+		break;
+	default:
+		min_period_frames = 104;
+		break;
+	}
+	if (!high_speed)
+		min_period_frames <<= 1;
+	if (cfg.period_frames < min_period_frames)
+		return -EINVAL;
+
+	snd_power_wait(hw->card);
+
+	mutex_lock(&us122l->mutex);
+	s = us122l->sk.s;
+	if (!us122l->master) {
+		us122l->master = file;
+	} else if (us122l->master != file) {
+		if (!s || memcmp(&cfg, &s->cfg, sizeof(cfg))) {
+			err = -EIO;
+			goto unlock;
+		}
+		us122l->slave = file;
+	}
+	if (!s || memcmp(&cfg, &s->cfg, sizeof(cfg)) ||
+	    s->state == usb_stream_xrun) {
+		us122l_stop(us122l);
+		if (!us122l_start(us122l, cfg.sample_rate, cfg.period_frames))
+			err = -EIO;
+		else
+			err = 1;
+	}
+unlock:
+	mutex_unlock(&us122l->mutex);
+	wake_up_all(&us122l->sk.sleep);
+	return err;
+}
+
+#define SND_USB_STREAM_ID "USB STREAM"
+static int usb_stream_hwdep_new(struct snd_card *card)
+{
+	int err;
+	struct snd_hwdep *hw;
+	struct usb_device *dev = US122L(card)->dev;
+
+	err = snd_hwdep_new(card, SND_USB_STREAM_ID, 0, &hw);
+	if (err < 0)
+		return err;
+
+	hw->iface = SNDRV_HWDEP_IFACE_USB_STREAM;
+	hw->private_data = US122L(card);
+	hw->ops.open = usb_stream_hwdep_open;
+	hw->ops.release = usb_stream_hwdep_release;
+	hw->ops.ioctl = usb_stream_hwdep_ioctl;
+	hw->ops.ioctl_compat = usb_stream_hwdep_ioctl;
+	hw->ops.mmap = usb_stream_hwdep_mmap;
+	hw->ops.poll = usb_stream_hwdep_poll;
+
+	sprintf(hw->name, "/dev/bus/usb/%03d/%03d/hwdeppcm",
+		dev->bus->busnum, dev->devnum);
+	return 0;
+}
+
+static bool us122l_create_card(struct snd_card *card)
+{
+	int err;
+	struct us122l *us122l = US122L(card);
+
+	if (us122l->is_us144) {
+		err = usb_set_interface(us122l->dev, 0, 1);
+		if (err) {
+			snd_printk(KERN_ERR "usb_set_interface error\n");
+			return false;
+		}
+	}
+	err = usb_set_interface(us122l->dev, 1, 1);
+	if (err) {
+		snd_printk(KERN_ERR "usb_set_interface error\n");
+		return false;
+	}
+
+	pt_info_set(us122l->dev, 0x11);
+	pt_info_set(us122l->dev, 0x10);
+
+	if (!us122l_start(us122l, 44100, 256))
+		return false;
+
+	if (us122l->is_us144)
+		err = us144_create_usbmidi(card);
+	else
+		err = us122l_create_usbmidi(card);
+	if (err < 0) {
+		snd_printk(KERN_ERR "us122l_create_usbmidi error %i\n", err);
+		goto stop;
+	}
+	err = usb_stream_hwdep_new(card);
+	if (err < 0) {
+		/* release the midi resources */
+		struct list_head *p;
+
+		list_for_each(p, &us122l->midi_list)
+			snd_usbmidi_disconnect(p);
+
+		goto stop;
+	}
+	return true;
+
+stop:
+	us122l_stop(us122l);
+	return false;
+}
+
+static void snd_us122l_free(struct snd_card *card)
+{
+	struct us122l	*us122l = US122L(card);
+	int		index = us122l->card_index;
+
+	if (index >= 0 && index < SNDRV_CARDS)
+		snd_us122l_card_used[index] = 0;
+}
+
+static int usx2y_create_card(struct usb_device *device,
+			     struct usb_interface *intf,
+			     struct snd_card **cardp,
+			     unsigned long flags)
+{
+	int		dev;
+	struct snd_card *card;
+	int err;
+
+	for (dev = 0; dev < SNDRV_CARDS; ++dev)
+		if (enable[dev] && !snd_us122l_card_used[dev])
+			break;
+	if (dev >= SNDRV_CARDS)
+		return -ENODEV;
+	err = snd_card_new(&intf->dev, index[dev], id[dev], THIS_MODULE,
+			   sizeof(struct us122l), &card);
+	if (err < 0)
+		return err;
+	snd_us122l_card_used[US122L(card)->card_index = dev] = 1;
+	card->private_free = snd_us122l_free;
+	US122L(card)->dev = device;
+	mutex_init(&US122L(card)->mutex);
+	init_waitqueue_head(&US122L(card)->sk.sleep);
+	US122L(card)->is_us144 = flags & US122L_FLAG_US144;
+	INIT_LIST_HEAD(&US122L(card)->midi_list);
+	strcpy(card->driver, "USB "NAME_ALLCAPS"");
+	sprintf(card->shortname, "TASCAM "NAME_ALLCAPS"");
+	sprintf(card->longname, "%s (%x:%x if %d at %03d/%03d)",
+		card->shortname,
+		le16_to_cpu(device->descriptor.idVendor),
+		le16_to_cpu(device->descriptor.idProduct),
+		0,
+		US122L(card)->dev->bus->busnum,
+		US122L(card)->dev->devnum
+		);
+	*cardp = card;
+	return 0;
+}
+
+static int us122l_usb_probe(struct usb_interface *intf,
+			    const struct usb_device_id *device_id,
+			    struct snd_card **cardp)
+{
+	struct usb_device *device = interface_to_usbdev(intf);
+	struct snd_card *card;
+	int err;
+
+	err = usx2y_create_card(device, intf, &card, device_id->driver_info);
+	if (err < 0)
+		return err;
+
+	if (!us122l_create_card(card)) {
+		snd_card_free(card);
+		return -EINVAL;
+	}
+
+	err = snd_card_register(card);
+	if (err < 0) {
+		snd_card_free(card);
+		return err;
+	}
+
+	usb_get_intf(usb_ifnum_to_if(device, 0));
+	usb_get_dev(device);
+	*cardp = card;
+	return 0;
+}
+
+static int snd_us122l_probe(struct usb_interface *intf,
+			    const struct usb_device_id *id)
+{
+	struct usb_device *device = interface_to_usbdev(intf);
+	struct snd_card *card;
+	int err;
+
+	if (id->driver_info & US122L_FLAG_US144 &&
+			device->speed == USB_SPEED_HIGH) {
+		snd_printk(KERN_ERR "disable ehci-hcd to run US-144\n");
+		return -ENODEV;
+	}
+
+	snd_printdd(KERN_DEBUG"%p:%i\n",
+		    intf, intf->cur_altsetting->desc.bInterfaceNumber);
+	if (intf->cur_altsetting->desc.bInterfaceNumber != 1)
+		return 0;
+
+	err = us122l_usb_probe(usb_get_intf(intf), id, &card);
+	if (err < 0) {
+		usb_put_intf(intf);
+		return err;
+	}
+
+	usb_set_intfdata(intf, card);
+	return 0;
+}
+
+static void snd_us122l_disconnect(struct usb_interface *intf)
+{
+	struct snd_card *card;
+	struct us122l *us122l;
+	struct list_head *p;
+
+	card = usb_get_intfdata(intf);
+	if (!card)
+		return;
+
+	snd_card_disconnect(card);
+
+	us122l = US122L(card);
+	mutex_lock(&us122l->mutex);
+	us122l_stop(us122l);
+	mutex_unlock(&us122l->mutex);
+
+	/* release the midi resources */
+	list_for_each(p, &us122l->midi_list) {
+		snd_usbmidi_disconnect(p);
+	}
+
+	usb_put_intf(usb_ifnum_to_if(us122l->dev, 0));
+	usb_put_intf(usb_ifnum_to_if(us122l->dev, 1));
+	usb_put_dev(us122l->dev);
+
+	while (atomic_read(&us122l->mmap_count))
+		msleep(500);
+
+	snd_card_free(card);
+}
+
+static int snd_us122l_suspend(struct usb_interface *intf, pm_message_t message)
+{
+	struct snd_card *card;
+	struct us122l *us122l;
+	struct list_head *p;
+
+	card = usb_get_intfdata(intf);
+	if (!card)
+		return 0;
+	snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
+
+	us122l = US122L(card);
+	if (!us122l)
+		return 0;
+
+	list_for_each(p, &us122l->midi_list)
+		snd_usbmidi_input_stop(p);
+
+	mutex_lock(&us122l->mutex);
+	usb_stream_stop(&us122l->sk);
+	mutex_unlock(&us122l->mutex);
+
+	return 0;
+}
+
+static int snd_us122l_resume(struct usb_interface *intf)
+{
+	struct snd_card *card;
+	struct us122l *us122l;
+	struct list_head *p;
+	int err;
+
+	card = usb_get_intfdata(intf);
+	if (!card)
+		return 0;
+
+	us122l = US122L(card);
+	if (!us122l)
+		return 0;
+
+	mutex_lock(&us122l->mutex);
+	/* needed, doesn't restart without: */
+	if (us122l->is_us144) {
+		err = usb_set_interface(us122l->dev, 0, 1);
+		if (err) {
+			snd_printk(KERN_ERR "usb_set_interface error\n");
+			goto unlock;
+		}
+	}
+	err = usb_set_interface(us122l->dev, 1, 1);
+	if (err) {
+		snd_printk(KERN_ERR "usb_set_interface error\n");
+		goto unlock;
+	}
+
+	pt_info_set(us122l->dev, 0x11);
+	pt_info_set(us122l->dev, 0x10);
+
+	err = us122l_set_sample_rate(us122l->dev,
+				     us122l->sk.s->cfg.sample_rate);
+	if (err < 0) {
+		snd_printk(KERN_ERR "us122l_set_sample_rate error\n");
+		goto unlock;
+	}
+	err = usb_stream_start(&us122l->sk);
+	if (err)
+		goto unlock;
+
+	list_for_each(p, &us122l->midi_list)
+		snd_usbmidi_input_start(p);
+unlock:
+	mutex_unlock(&us122l->mutex);
+	snd_power_change_state(card, SNDRV_CTL_POWER_D0);
+	return err;
+}
+
+static const struct usb_device_id snd_us122l_usb_id_table[] = {
+	{
+		.match_flags =	USB_DEVICE_ID_MATCH_DEVICE,
+		.idVendor =	0x0644,
+		.idProduct =	USB_ID_US122L
+	},
+	{	/* US-144 only works at USB1.1! Disable module ehci-hcd. */
+		.match_flags =	USB_DEVICE_ID_MATCH_DEVICE,
+		.idVendor =	0x0644,
+		.idProduct =	USB_ID_US144,
+		.driver_info =	US122L_FLAG_US144
+	},
+	{
+		.match_flags =	USB_DEVICE_ID_MATCH_DEVICE,
+		.idVendor =	0x0644,
+		.idProduct =	USB_ID_US122MKII
+	},
+	{
+		.match_flags =	USB_DEVICE_ID_MATCH_DEVICE,
+		.idVendor =	0x0644,
+		.idProduct =	USB_ID_US144MKII,
+		.driver_info =	US122L_FLAG_US144
+	},
+	{ /* terminator */ }
+};
+MODULE_DEVICE_TABLE(usb, snd_us122l_usb_id_table);
+
+static struct usb_driver snd_us122l_usb_driver = {
+	.name =		"snd-usb-us122l",
+	.probe =	snd_us122l_probe,
+	.disconnect =	snd_us122l_disconnect,
+	.suspend =	snd_us122l_suspend,
+	.resume =	snd_us122l_resume,
+	.reset_resume =	snd_us122l_resume,
+	.id_table =	snd_us122l_usb_id_table,
+	.supports_autosuspend = 1
+};
+
+module_usb_driver(snd_us122l_usb_driver);