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, 1460 insertions, 0 deletions

diff --git a/sound/core/oss/mixer_oss.c b/sound/core/oss/mixer_oss.c
new file mode 100644
index 000000000..9620115cf
--- /dev/null
+++ b/sound/core/oss/mixer_oss.c
@@ -0,0 +1,1460 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ *  OSS emulation layer for the mixer interface
+ *  Copyright (c) by Jaroslav Kysela <perex@perex.cz>
+ */
+
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <linux/time.h>
+#include <linux/string.h>
+#include <linux/module.h>
+#include <linux/compat.h>
+#include <sound/core.h>
+#include <sound/minors.h>
+#include <sound/control.h>
+#include <sound/info.h>
+#include <sound/mixer_oss.h>
+#include <linux/soundcard.h>
+
+#define OSS_ALSAEMULVER         _SIOR ('M', 249, int)
+
+MODULE_AUTHOR("Jaroslav Kysela <perex@perex.cz>");
+MODULE_DESCRIPTION("Mixer OSS emulation for ALSA.");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS_SNDRV_MINOR(SNDRV_MINOR_OSS_MIXER);
+
+static int snd_mixer_oss_open(struct inode *inode, struct file *file)
+{
+	struct snd_card *card;
+	struct snd_mixer_oss_file *fmixer;
+	int err;
+
+	err = nonseekable_open(inode, file);
+	if (err < 0)
+		return err;
+
+	card = snd_lookup_oss_minor_data(iminor(inode),
+					 SNDRV_OSS_DEVICE_TYPE_MIXER);
+	if (card == NULL)
+		return -ENODEV;
+	if (card->mixer_oss == NULL) {
+		snd_card_unref(card);
+		return -ENODEV;
+	}
+	err = snd_card_file_add(card, file);
+	if (err < 0) {
+		snd_card_unref(card);
+		return err;
+	}
+	fmixer = kzalloc(sizeof(*fmixer), GFP_KERNEL);
+	if (fmixer == NULL) {
+		snd_card_file_remove(card, file);
+		snd_card_unref(card);
+		return -ENOMEM;
+	}
+	fmixer->card = card;
+	fmixer->mixer = card->mixer_oss;
+	file->private_data = fmixer;
+	if (!try_module_get(card->module)) {
+		kfree(fmixer);
+		snd_card_file_remove(card, file);
+		snd_card_unref(card);
+		return -EFAULT;
+	}
+	snd_card_unref(card);
+	return 0;
+}
+
+static int snd_mixer_oss_release(struct inode *inode, struct file *file)
+{
+	struct snd_mixer_oss_file *fmixer;
+
+	if (file->private_data) {
+		fmixer = file->private_data;
+		module_put(fmixer->card->module);
+		snd_card_file_remove(fmixer->card, file);
+		kfree(fmixer);
+	}
+	return 0;
+}
+
+static int snd_mixer_oss_info(struct snd_mixer_oss_file *fmixer,
+			      mixer_info __user *_info)
+{
+	struct snd_card *card = fmixer->card;
+	struct snd_mixer_oss *mixer = fmixer->mixer;
+	struct mixer_info info;
+	
+	memset(&info, 0, sizeof(info));
+	strscpy(info.id, mixer && mixer->id[0] ? mixer->id : card->driver, sizeof(info.id));
+	strscpy(info.name, mixer && mixer->name[0] ? mixer->name : card->mixername, sizeof(info.name));
+	info.modify_counter = card->mixer_oss_change_count;
+	if (copy_to_user(_info, &info, sizeof(info)))
+		return -EFAULT;
+	return 0;
+}
+
+static int snd_mixer_oss_info_obsolete(struct snd_mixer_oss_file *fmixer,
+				       _old_mixer_info __user *_info)
+{
+	struct snd_card *card = fmixer->card;
+	struct snd_mixer_oss *mixer = fmixer->mixer;
+	_old_mixer_info info;
+	
+	memset(&info, 0, sizeof(info));
+	strscpy(info.id, mixer && mixer->id[0] ? mixer->id : card->driver, sizeof(info.id));
+	strscpy(info.name, mixer && mixer->name[0] ? mixer->name : card->mixername, sizeof(info.name));
+	if (copy_to_user(_info, &info, sizeof(info)))
+		return -EFAULT;
+	return 0;
+}
+
+static int snd_mixer_oss_caps(struct snd_mixer_oss_file *fmixer)
+{
+	struct snd_mixer_oss *mixer = fmixer->mixer;
+	int result = 0;
+
+	if (mixer == NULL)
+		return -EIO;
+	if (mixer->get_recsrc && mixer->put_recsrc)
+		result |= SOUND_CAP_EXCL_INPUT;
+	return result;
+}
+
+static int snd_mixer_oss_devmask(struct snd_mixer_oss_file *fmixer)
+{
+	struct snd_mixer_oss *mixer = fmixer->mixer;
+	struct snd_mixer_oss_slot *pslot;
+	int result = 0, chn;
+
+	if (mixer == NULL)
+		return -EIO;
+	mutex_lock(&mixer->reg_mutex);
+	for (chn = 0; chn < 31; chn++) {
+		pslot = &mixer->slots[chn];
+		if (pslot->put_volume || pslot->put_recsrc)
+			result |= 1 << chn;
+	}
+	mutex_unlock(&mixer->reg_mutex);
+	return result;
+}
+
+static int snd_mixer_oss_stereodevs(struct snd_mixer_oss_file *fmixer)
+{
+	struct snd_mixer_oss *mixer = fmixer->mixer;
+	struct snd_mixer_oss_slot *pslot;
+	int result = 0, chn;
+
+	if (mixer == NULL)
+		return -EIO;
+	mutex_lock(&mixer->reg_mutex);
+	for (chn = 0; chn < 31; chn++) {
+		pslot = &mixer->slots[chn];
+		if (pslot->put_volume && pslot->stereo)
+			result |= 1 << chn;
+	}
+	mutex_unlock(&mixer->reg_mutex);
+	return result;
+}
+
+static int snd_mixer_oss_recmask(struct snd_mixer_oss_file *fmixer)
+{
+	struct snd_mixer_oss *mixer = fmixer->mixer;
+	int result = 0;
+
+	if (mixer == NULL)
+		return -EIO;
+	mutex_lock(&mixer->reg_mutex);
+	if (mixer->put_recsrc && mixer->get_recsrc) {	/* exclusive */
+		result = mixer->mask_recsrc;
+	} else {
+		struct snd_mixer_oss_slot *pslot;
+		int chn;
+		for (chn = 0; chn < 31; chn++) {
+			pslot = &mixer->slots[chn];
+			if (pslot->put_recsrc)
+				result |= 1 << chn;
+		}
+	}
+	mutex_unlock(&mixer->reg_mutex);
+	return result;
+}
+
+static int snd_mixer_oss_get_recsrc(struct snd_mixer_oss_file *fmixer)
+{
+	struct snd_mixer_oss *mixer = fmixer->mixer;
+	int result = 0;
+
+	if (mixer == NULL)
+		return -EIO;
+	mutex_lock(&mixer->reg_mutex);
+	if (mixer->put_recsrc && mixer->get_recsrc) {	/* exclusive */
+		unsigned int index;
+		result = mixer->get_recsrc(fmixer, &index);
+		if (result < 0)
+			goto unlock;
+		result = 1 << index;
+	} else {
+		struct snd_mixer_oss_slot *pslot;
+		int chn;
+		for (chn = 0; chn < 31; chn++) {
+			pslot = &mixer->slots[chn];
+			if (pslot->get_recsrc) {
+				int active = 0;
+				pslot->get_recsrc(fmixer, pslot, &active);
+				if (active)
+					result |= 1 << chn;
+			}
+		}
+	}
+	mixer->oss_recsrc = result;
+ unlock:
+	mutex_unlock(&mixer->reg_mutex);
+	return result;
+}
+
+static int snd_mixer_oss_set_recsrc(struct snd_mixer_oss_file *fmixer, int recsrc)
+{
+	struct snd_mixer_oss *mixer = fmixer->mixer;
+	struct snd_mixer_oss_slot *pslot;
+	int chn, active;
+	unsigned int index;
+	int result = 0;
+
+	if (mixer == NULL)
+		return -EIO;
+	mutex_lock(&mixer->reg_mutex);
+	if (mixer->get_recsrc && mixer->put_recsrc) {	/* exclusive input */
+		if (recsrc & ~mixer->oss_recsrc)
+			recsrc &= ~mixer->oss_recsrc;
+		mixer->put_recsrc(fmixer, ffz(~recsrc));
+		mixer->get_recsrc(fmixer, &index);
+		result = 1 << index;
+	}
+	for (chn = 0; chn < 31; chn++) {
+		pslot = &mixer->slots[chn];
+		if (pslot->put_recsrc) {
+			active = (recsrc & (1 << chn)) ? 1 : 0;
+			pslot->put_recsrc(fmixer, pslot, active);
+		}
+	}
+	if (! result) {
+		for (chn = 0; chn < 31; chn++) {
+			pslot = &mixer->slots[chn];
+			if (pslot->get_recsrc) {
+				active = 0;
+				pslot->get_recsrc(fmixer, pslot, &active);
+				if (active)
+					result |= 1 << chn;
+			}
+		}
+	}
+	mutex_unlock(&mixer->reg_mutex);
+	return result;
+}
+
+static int snd_mixer_oss_get_volume(struct snd_mixer_oss_file *fmixer, int slot)
+{
+	struct snd_mixer_oss *mixer = fmixer->mixer;
+	struct snd_mixer_oss_slot *pslot;
+	int result = 0, left, right;
+
+	if (mixer == NULL || slot > 30)
+		return -EIO;
+	mutex_lock(&mixer->reg_mutex);
+	pslot = &mixer->slots[slot];
+	left = pslot->volume[0];
+	right = pslot->volume[1];
+	if (pslot->get_volume)
+		result = pslot->get_volume(fmixer, pslot, &left, &right);
+	if (!pslot->stereo)
+		right = left;
+	if (snd_BUG_ON(left < 0 || left > 100)) {
+		result = -EIO;
+		goto unlock;
+	}
+	if (snd_BUG_ON(right < 0 || right > 100)) {
+		result = -EIO;
+		goto unlock;
+	}
+	if (result >= 0) {
+		pslot->volume[0] = left;
+		pslot->volume[1] = right;
+	 	result = (left & 0xff) | ((right & 0xff) << 8);
+	}
+ unlock:
+	mutex_unlock(&mixer->reg_mutex);
+	return result;
+}
+
+static int snd_mixer_oss_set_volume(struct snd_mixer_oss_file *fmixer,
+				    int slot, int volume)
+{
+	struct snd_mixer_oss *mixer = fmixer->mixer;
+	struct snd_mixer_oss_slot *pslot;
+	int result = 0, left = volume & 0xff, right = (volume >> 8) & 0xff;
+
+	if (mixer == NULL || slot > 30)
+		return -EIO;
+	mutex_lock(&mixer->reg_mutex);
+	pslot = &mixer->slots[slot];
+	if (left > 100)
+		left = 100;
+	if (right > 100)
+		right = 100;
+	if (!pslot->stereo)
+		right = left;
+	if (pslot->put_volume)
+		result = pslot->put_volume(fmixer, pslot, left, right);
+	if (result < 0)
+		goto unlock;
+	pslot->volume[0] = left;
+	pslot->volume[1] = right;
+	result = (left & 0xff) | ((right & 0xff) << 8);
+ unlock:
+	mutex_unlock(&mixer->reg_mutex);
+	return result;
+}
+
+static int snd_mixer_oss_ioctl1(struct snd_mixer_oss_file *fmixer, unsigned int cmd, unsigned long arg)
+{
+	void __user *argp = (void __user *)arg;
+	int __user *p = argp;
+	int tmp;
+
+	if (snd_BUG_ON(!fmixer))
+		return -ENXIO;
+	if (((cmd >> 8) & 0xff) == 'M') {
+		switch (cmd) {
+		case SOUND_MIXER_INFO:
+			return snd_mixer_oss_info(fmixer, argp);
+		case SOUND_OLD_MIXER_INFO:
+ 			return snd_mixer_oss_info_obsolete(fmixer, argp);
+		case SOUND_MIXER_WRITE_RECSRC:
+			if (get_user(tmp, p))
+				return -EFAULT;
+			tmp = snd_mixer_oss_set_recsrc(fmixer, tmp);
+			if (tmp < 0)
+				return tmp;
+			return put_user(tmp, p);
+		case OSS_GETVERSION:
+			return put_user(SNDRV_OSS_VERSION, p);
+		case OSS_ALSAEMULVER:
+			return put_user(1, p);
+		case SOUND_MIXER_READ_DEVMASK:
+			tmp = snd_mixer_oss_devmask(fmixer);
+			if (tmp < 0)
+				return tmp;
+			return put_user(tmp, p);
+		case SOUND_MIXER_READ_STEREODEVS:
+			tmp = snd_mixer_oss_stereodevs(fmixer);
+			if (tmp < 0)
+				return tmp;
+			return put_user(tmp, p);
+		case SOUND_MIXER_READ_RECMASK:
+			tmp = snd_mixer_oss_recmask(fmixer);
+			if (tmp < 0)
+				return tmp;
+			return put_user(tmp, p);
+		case SOUND_MIXER_READ_CAPS:
+			tmp = snd_mixer_oss_caps(fmixer);
+			if (tmp < 0)
+				return tmp;
+			return put_user(tmp, p);
+		case SOUND_MIXER_READ_RECSRC:
+			tmp = snd_mixer_oss_get_recsrc(fmixer);
+			if (tmp < 0)
+				return tmp;
+			return put_user(tmp, p);
+		}
+	}
+	if (cmd & SIOC_IN) {
+		if (get_user(tmp, p))
+			return -EFAULT;
+		tmp = snd_mixer_oss_set_volume(fmixer, cmd & 0xff, tmp);
+		if (tmp < 0)
+			return tmp;
+		return put_user(tmp, p);
+	} else if (cmd & SIOC_OUT) {
+		tmp = snd_mixer_oss_get_volume(fmixer, cmd & 0xff);
+		if (tmp < 0)
+			return tmp;
+		return put_user(tmp, p);
+	}
+	return -ENXIO;
+}
+
+static long snd_mixer_oss_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
+{
+	return snd_mixer_oss_ioctl1(file->private_data, cmd, arg);
+}
+
+int snd_mixer_oss_ioctl_card(struct snd_card *card, unsigned int cmd, unsigned long arg)
+{
+	struct snd_mixer_oss_file fmixer;
+	
+	if (snd_BUG_ON(!card))
+		return -ENXIO;
+	if (card->mixer_oss == NULL)
+		return -ENXIO;
+	memset(&fmixer, 0, sizeof(fmixer));
+	fmixer.card = card;
+	fmixer.mixer = card->mixer_oss;
+	return snd_mixer_oss_ioctl1(&fmixer, cmd, arg);
+}
+EXPORT_SYMBOL(snd_mixer_oss_ioctl_card);
+
+#ifdef CONFIG_COMPAT
+/* all compatible */
+static long snd_mixer_oss_ioctl_compat(struct file *file, unsigned int cmd,
+				       unsigned long arg)
+{
+	return snd_mixer_oss_ioctl1(file->private_data, cmd,
+				    (unsigned long)compat_ptr(arg));
+}
+#else
+#define snd_mixer_oss_ioctl_compat	NULL
+#endif
+
+/*
+ *  REGISTRATION PART
+ */
+
+static const struct file_operations snd_mixer_oss_f_ops =
+{
+	.owner =	THIS_MODULE,
+	.open =		snd_mixer_oss_open,
+	.release =	snd_mixer_oss_release,
+	.llseek =	no_llseek,
+	.unlocked_ioctl =	snd_mixer_oss_ioctl,
+	.compat_ioctl =	snd_mixer_oss_ioctl_compat,
+};
+
+/*
+ *  utilities
+ */
+
+static long snd_mixer_oss_conv(long val, long omin, long omax, long nmin, long nmax)
+{
+	long orange = omax - omin, nrange = nmax - nmin;
+	
+	if (orange == 0)
+		return 0;
+	return DIV_ROUND_CLOSEST(nrange * (val - omin), orange) + nmin;
+}
+
+/* convert from alsa native to oss values (0-100) */
+static long snd_mixer_oss_conv1(long val, long min, long max, int *old)
+{
+	if (val == snd_mixer_oss_conv(*old, 0, 100, min, max))
+		return *old;
+	return snd_mixer_oss_conv(val, min, max, 0, 100);
+}
+
+/* convert from oss to alsa native values */
+static long snd_mixer_oss_conv2(long val, long min, long max)
+{
+	return snd_mixer_oss_conv(val, 0, 100, min, max);
+}
+
+#if 0
+static void snd_mixer_oss_recsrce_set(struct snd_card *card, int slot)
+{
+	struct snd_mixer_oss *mixer = card->mixer_oss;
+	if (mixer)
+		mixer->mask_recsrc |= 1 << slot;
+}
+
+static int snd_mixer_oss_recsrce_get(struct snd_card *card, int slot)
+{
+	struct snd_mixer_oss *mixer = card->mixer_oss;
+	if (mixer && (mixer->mask_recsrc & (1 << slot)))
+		return 1;
+	return 0;
+}
+#endif
+
+#define SNDRV_MIXER_OSS_SIGNATURE		0x65999250
+
+#define SNDRV_MIXER_OSS_ITEM_GLOBAL	0
+#define SNDRV_MIXER_OSS_ITEM_GSWITCH	1
+#define SNDRV_MIXER_OSS_ITEM_GROUTE	2
+#define SNDRV_MIXER_OSS_ITEM_GVOLUME	3
+#define SNDRV_MIXER_OSS_ITEM_PSWITCH	4
+#define SNDRV_MIXER_OSS_ITEM_PROUTE	5
+#define SNDRV_MIXER_OSS_ITEM_PVOLUME	6
+#define SNDRV_MIXER_OSS_ITEM_CSWITCH	7
+#define SNDRV_MIXER_OSS_ITEM_CROUTE	8
+#define SNDRV_MIXER_OSS_ITEM_CVOLUME	9
+#define SNDRV_MIXER_OSS_ITEM_CAPTURE	10
+
+#define SNDRV_MIXER_OSS_ITEM_COUNT	11
+
+#define SNDRV_MIXER_OSS_PRESENT_GLOBAL	(1<<0)
+#define SNDRV_MIXER_OSS_PRESENT_GSWITCH	(1<<1)
+#define SNDRV_MIXER_OSS_PRESENT_GROUTE	(1<<2)
+#define SNDRV_MIXER_OSS_PRESENT_GVOLUME	(1<<3)
+#define SNDRV_MIXER_OSS_PRESENT_PSWITCH	(1<<4)
+#define SNDRV_MIXER_OSS_PRESENT_PROUTE	(1<<5)
+#define SNDRV_MIXER_OSS_PRESENT_PVOLUME	(1<<6)
+#define SNDRV_MIXER_OSS_PRESENT_CSWITCH	(1<<7)
+#define SNDRV_MIXER_OSS_PRESENT_CROUTE	(1<<8)
+#define SNDRV_MIXER_OSS_PRESENT_CVOLUME	(1<<9)
+#define SNDRV_MIXER_OSS_PRESENT_CAPTURE	(1<<10)
+
+struct slot {
+	unsigned int signature;
+	unsigned int present;
+	unsigned int channels;
+	unsigned int numid[SNDRV_MIXER_OSS_ITEM_COUNT];
+	unsigned int capture_item;
+	const struct snd_mixer_oss_assign_table *assigned;
+	unsigned int allocated: 1;
+};
+
+#define ID_UNKNOWN	((unsigned int)-1)
+
+static struct snd_kcontrol *snd_mixer_oss_test_id(struct snd_mixer_oss *mixer, const char *name, int index)
+{
+	struct snd_card *card = mixer->card;
+	struct snd_ctl_elem_id id;
+	
+	memset(&id, 0, sizeof(id));
+	id.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
+	strscpy(id.name, name, sizeof(id.name));
+	id.index = index;
+	return snd_ctl_find_id(card, &id);
+}
+
+static void snd_mixer_oss_get_volume1_vol(struct snd_mixer_oss_file *fmixer,
+					  struct snd_mixer_oss_slot *pslot,
+					  unsigned int numid,
+					  int *left, int *right)
+{
+	struct snd_ctl_elem_info *uinfo;
+	struct snd_ctl_elem_value *uctl;
+	struct snd_kcontrol *kctl;
+	struct snd_card *card = fmixer->card;
+
+	if (numid == ID_UNKNOWN)
+		return;
+	down_read(&card->controls_rwsem);
+	kctl = snd_ctl_find_numid(card, numid);
+	if (!kctl) {
+		up_read(&card->controls_rwsem);
+		return;
+	}
+	uinfo = kzalloc(sizeof(*uinfo), GFP_KERNEL);
+	uctl = kzalloc(sizeof(*uctl), GFP_KERNEL);
+	if (uinfo == NULL || uctl == NULL)
+		goto __unalloc;
+	if (kctl->info(kctl, uinfo))
+		goto __unalloc;
+	if (kctl->get(kctl, uctl))
+		goto __unalloc;
+	if (uinfo->type == SNDRV_CTL_ELEM_TYPE_BOOLEAN &&
+	    uinfo->value.integer.min == 0 && uinfo->value.integer.max == 1)
+		goto __unalloc;
+	*left = snd_mixer_oss_conv1(uctl->value.integer.value[0], uinfo->value.integer.min, uinfo->value.integer.max, &pslot->volume[0]);
+	if (uinfo->count > 1)
+		*right = snd_mixer_oss_conv1(uctl->value.integer.value[1], uinfo->value.integer.min, uinfo->value.integer.max, &pslot->volume[1]);
+      __unalloc:
+	up_read(&card->controls_rwsem);
+      	kfree(uctl);
+      	kfree(uinfo);
+}
+
+static void snd_mixer_oss_get_volume1_sw(struct snd_mixer_oss_file *fmixer,
+					 struct snd_mixer_oss_slot *pslot,
+					 unsigned int numid,
+					 int *left, int *right,
+					 int route)
+{
+	struct snd_ctl_elem_info *uinfo;
+	struct snd_ctl_elem_value *uctl;
+	struct snd_kcontrol *kctl;
+	struct snd_card *card = fmixer->card;
+
+	if (numid == ID_UNKNOWN)
+		return;
+	down_read(&card->controls_rwsem);
+	kctl = snd_ctl_find_numid(card, numid);
+	if (!kctl) {
+		up_read(&card->controls_rwsem);
+		return;
+	}
+	uinfo = kzalloc(sizeof(*uinfo), GFP_KERNEL);
+	uctl = kzalloc(sizeof(*uctl), GFP_KERNEL);
+	if (uinfo == NULL || uctl == NULL)
+		goto __unalloc;
+	if (kctl->info(kctl, uinfo))
+		goto __unalloc;
+	if (kctl->get(kctl, uctl))
+		goto __unalloc;
+	if (!uctl->value.integer.value[0]) {
+		*left = 0;
+		if (uinfo->count == 1)
+			*right = 0;
+	}
+	if (uinfo->count > 1 && !uctl->value.integer.value[route ? 3 : 1])
+		*right = 0;
+      __unalloc:
+	up_read(&card->controls_rwsem);
+      	kfree(uctl);
+	kfree(uinfo);
+}
+
+static int snd_mixer_oss_get_volume1(struct snd_mixer_oss_file *fmixer,
+				     struct snd_mixer_oss_slot *pslot,
+				     int *left, int *right)
+{
+	struct slot *slot = pslot->private_data;
+	
+	*left = *right = 100;
+	if (slot->present & SNDRV_MIXER_OSS_PRESENT_PVOLUME) {
+		snd_mixer_oss_get_volume1_vol(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_PVOLUME], left, right);
+	} else if (slot->present & SNDRV_MIXER_OSS_PRESENT_GVOLUME) {
+		snd_mixer_oss_get_volume1_vol(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_GVOLUME], left, right);
+	} else if (slot->present & SNDRV_MIXER_OSS_PRESENT_GLOBAL) {
+		snd_mixer_oss_get_volume1_vol(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_GLOBAL], left, right);
+	}
+	if (slot->present & SNDRV_MIXER_OSS_PRESENT_PSWITCH) {
+		snd_mixer_oss_get_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_PSWITCH], left, right, 0);
+	} else if (slot->present & SNDRV_MIXER_OSS_PRESENT_GSWITCH) {
+		snd_mixer_oss_get_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_GSWITCH], left, right, 0);
+	} else if (slot->present & SNDRV_MIXER_OSS_PRESENT_PROUTE) {
+		snd_mixer_oss_get_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_PROUTE], left, right, 1);
+	} else if (slot->present & SNDRV_MIXER_OSS_PRESENT_GROUTE) {
+		snd_mixer_oss_get_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_GROUTE], left, right, 1);
+	}
+	return 0;
+}
+
+static void snd_mixer_oss_put_volume1_vol(struct snd_mixer_oss_file *fmixer,
+					  struct snd_mixer_oss_slot *pslot,
+					  unsigned int numid,
+					  int left, int right)
+{
+	struct snd_ctl_elem_info *uinfo;
+	struct snd_ctl_elem_value *uctl;
+	struct snd_kcontrol *kctl;
+	struct snd_card *card = fmixer->card;
+	int res;
+
+	if (numid == ID_UNKNOWN)
+		return;
+	down_read(&card->controls_rwsem);
+	kctl = snd_ctl_find_numid(card, numid);
+	if (!kctl) {
+		up_read(&card->controls_rwsem);
+		return;
+	}
+	uinfo = kzalloc(sizeof(*uinfo), GFP_KERNEL);
+	uctl = kzalloc(sizeof(*uctl), GFP_KERNEL);
+	if (uinfo == NULL || uctl == NULL)
+		goto __unalloc;
+	if (kctl->info(kctl, uinfo))
+		goto __unalloc;
+	if (uinfo->type == SNDRV_CTL_ELEM_TYPE_BOOLEAN &&
+	    uinfo->value.integer.min == 0 && uinfo->value.integer.max == 1)
+		goto __unalloc;
+	uctl->value.integer.value[0] = snd_mixer_oss_conv2(left, uinfo->value.integer.min, uinfo->value.integer.max);
+	if (uinfo->count > 1)
+		uctl->value.integer.value[1] = snd_mixer_oss_conv2(right, uinfo->value.integer.min, uinfo->value.integer.max);
+	res = kctl->put(kctl, uctl);
+	if (res < 0)
+		goto __unalloc;
+	if (res > 0)
+		snd_ctl_notify(card, SNDRV_CTL_EVENT_MASK_VALUE, &kctl->id);
+      __unalloc:
+	up_read(&card->controls_rwsem);
+      	kfree(uctl);
+	kfree(uinfo);
+}
+
+static void snd_mixer_oss_put_volume1_sw(struct snd_mixer_oss_file *fmixer,
+					 struct snd_mixer_oss_slot *pslot,
+					 unsigned int numid,
+					 int left, int right,
+					 int route)
+{
+	struct snd_ctl_elem_info *uinfo;
+	struct snd_ctl_elem_value *uctl;
+	struct snd_kcontrol *kctl;
+	struct snd_card *card = fmixer->card;
+	int res;
+
+	if (numid == ID_UNKNOWN)
+		return;
+	down_read(&card->controls_rwsem);
+	kctl = snd_ctl_find_numid(card, numid);
+	if (!kctl) {
+		up_read(&card->controls_rwsem);
+		return;
+	}
+	uinfo = kzalloc(sizeof(*uinfo), GFP_KERNEL);
+	uctl = kzalloc(sizeof(*uctl), GFP_KERNEL);
+	if (uinfo == NULL || uctl == NULL)
+		goto __unalloc;
+	if (kctl->info(kctl, uinfo))
+		goto __unalloc;
+	if (uinfo->count > 1) {
+		uctl->value.integer.value[0] = left > 0 ? 1 : 0;
+		uctl->value.integer.value[route ? 3 : 1] = right > 0 ? 1 : 0;
+		if (route) {
+			uctl->value.integer.value[1] =
+			uctl->value.integer.value[2] = 0;
+		}
+	} else {
+		uctl->value.integer.value[0] = (left > 0 || right > 0) ? 1 : 0;
+	}
+	res = kctl->put(kctl, uctl);
+	if (res < 0)
+		goto __unalloc;
+	if (res > 0)
+		snd_ctl_notify(card, SNDRV_CTL_EVENT_MASK_VALUE, &kctl->id);
+      __unalloc:
+	up_read(&card->controls_rwsem);
+      	kfree(uctl);
+	kfree(uinfo);
+}
+
+static int snd_mixer_oss_put_volume1(struct snd_mixer_oss_file *fmixer,
+				     struct snd_mixer_oss_slot *pslot,
+				     int left, int right)
+{
+	struct slot *slot = pslot->private_data;
+	
+	if (slot->present & SNDRV_MIXER_OSS_PRESENT_PVOLUME) {
+		snd_mixer_oss_put_volume1_vol(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_PVOLUME], left, right);
+		if (slot->present & SNDRV_MIXER_OSS_PRESENT_CVOLUME)
+			snd_mixer_oss_put_volume1_vol(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_CVOLUME], left, right);
+	} else if (slot->present & SNDRV_MIXER_OSS_PRESENT_CVOLUME) {
+		snd_mixer_oss_put_volume1_vol(fmixer, pslot,
+			slot->numid[SNDRV_MIXER_OSS_ITEM_CVOLUME], left, right);
+	} else if (slot->present & SNDRV_MIXER_OSS_PRESENT_GVOLUME) {
+		snd_mixer_oss_put_volume1_vol(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_GVOLUME], left, right);
+	} else if (slot->present & SNDRV_MIXER_OSS_PRESENT_GLOBAL) {
+		snd_mixer_oss_put_volume1_vol(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_GLOBAL], left, right);
+	}
+	if (left || right) {
+		if (slot->present & SNDRV_MIXER_OSS_PRESENT_PSWITCH)
+			snd_mixer_oss_put_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_PSWITCH], left, right, 0);
+		if (slot->present & SNDRV_MIXER_OSS_PRESENT_CSWITCH)
+			snd_mixer_oss_put_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_CSWITCH], left, right, 0);
+		if (slot->present & SNDRV_MIXER_OSS_PRESENT_GSWITCH)
+			snd_mixer_oss_put_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_GSWITCH], left, right, 0);
+		if (slot->present & SNDRV_MIXER_OSS_PRESENT_PROUTE)
+			snd_mixer_oss_put_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_PROUTE], left, right, 1);
+		if (slot->present & SNDRV_MIXER_OSS_PRESENT_CROUTE)
+			snd_mixer_oss_put_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_CROUTE], left, right, 1);
+		if (slot->present & SNDRV_MIXER_OSS_PRESENT_GROUTE)
+			snd_mixer_oss_put_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_GROUTE], left, right, 1);
+	} else {
+		if (slot->present & SNDRV_MIXER_OSS_PRESENT_PSWITCH) {
+			snd_mixer_oss_put_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_PSWITCH], left, right, 0);
+		} else if (slot->present & SNDRV_MIXER_OSS_PRESENT_CSWITCH) {
+			snd_mixer_oss_put_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_CSWITCH], left, right, 0);
+		} else if (slot->present & SNDRV_MIXER_OSS_PRESENT_GSWITCH) {
+			snd_mixer_oss_put_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_GSWITCH], left, right, 0);
+		} else if (slot->present & SNDRV_MIXER_OSS_PRESENT_PROUTE) {
+			snd_mixer_oss_put_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_PROUTE], left, right, 1);
+		} else if (slot->present & SNDRV_MIXER_OSS_PRESENT_CROUTE) {
+			snd_mixer_oss_put_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_CROUTE], left, right, 1);
+		} else if (slot->present & SNDRV_MIXER_OSS_PRESENT_GROUTE) {
+			snd_mixer_oss_put_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_GROUTE], left, right, 1);
+		}
+	}
+	return 0;
+}
+
+static int snd_mixer_oss_get_recsrc1_sw(struct snd_mixer_oss_file *fmixer,
+					struct snd_mixer_oss_slot *pslot,
+					int *active)
+{
+	struct slot *slot = pslot->private_data;
+	int left, right;
+	
+	left = right = 1;
+	snd_mixer_oss_get_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_CSWITCH], &left, &right, 0);
+	*active = (left || right) ? 1 : 0;
+	return 0;
+}
+
+static int snd_mixer_oss_get_recsrc1_route(struct snd_mixer_oss_file *fmixer,
+					   struct snd_mixer_oss_slot *pslot,
+					   int *active)
+{
+	struct slot *slot = pslot->private_data;
+	int left, right;
+	
+	left = right = 1;
+	snd_mixer_oss_get_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_CROUTE], &left, &right, 1);
+	*active = (left || right) ? 1 : 0;
+	return 0;
+}
+
+static int snd_mixer_oss_put_recsrc1_sw(struct snd_mixer_oss_file *fmixer,
+					struct snd_mixer_oss_slot *pslot,
+					int active)
+{
+	struct slot *slot = pslot->private_data;
+	
+	snd_mixer_oss_put_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_CSWITCH], active, active, 0);
+	return 0;
+}
+
+static int snd_mixer_oss_put_recsrc1_route(struct snd_mixer_oss_file *fmixer,
+					   struct snd_mixer_oss_slot *pslot,
+					   int active)
+{
+	struct slot *slot = pslot->private_data;
+	
+	snd_mixer_oss_put_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_CROUTE], active, active, 1);
+	return 0;
+}
+
+static int snd_mixer_oss_get_recsrc2(struct snd_mixer_oss_file *fmixer, unsigned int *active_index)
+{
+	struct snd_card *card = fmixer->card;
+	struct snd_mixer_oss *mixer = fmixer->mixer;
+	struct snd_kcontrol *kctl;
+	struct snd_mixer_oss_slot *pslot;
+	struct slot *slot;
+	struct snd_ctl_elem_info *uinfo;
+	struct snd_ctl_elem_value *uctl;
+	int err, idx;
+	
+	uinfo = kzalloc(sizeof(*uinfo), GFP_KERNEL);
+	uctl = kzalloc(sizeof(*uctl), GFP_KERNEL);
+	if (uinfo == NULL || uctl == NULL) {
+		err = -ENOMEM;
+		goto __free_only;
+	}
+	down_read(&card->controls_rwsem);
+	kctl = snd_mixer_oss_test_id(mixer, "Capture Source", 0);
+	if (! kctl) {
+		err = -ENOENT;
+		goto __unlock;
+	}
+	err = kctl->info(kctl, uinfo);
+	if (err < 0)
+		goto __unlock;
+	err = kctl->get(kctl, uctl);
+	if (err < 0)
+		goto __unlock;
+	for (idx = 0; idx < 32; idx++) {
+		if (!(mixer->mask_recsrc & (1 << idx)))
+			continue;
+		pslot = &mixer->slots[idx];
+		slot = pslot->private_data;
+		if (slot->signature != SNDRV_MIXER_OSS_SIGNATURE)
+			continue;
+		if (!(slot->present & SNDRV_MIXER_OSS_PRESENT_CAPTURE))
+			continue;
+		if (slot->capture_item == uctl->value.enumerated.item[0]) {
+			*active_index = idx;
+			break;
+		}
+	}
+	err = 0;
+      __unlock:
+     	up_read(&card->controls_rwsem);
+      __free_only:
+      	kfree(uctl);
+      	kfree(uinfo);
+      	return err;
+}
+
+static int snd_mixer_oss_put_recsrc2(struct snd_mixer_oss_file *fmixer, unsigned int active_index)
+{
+	struct snd_card *card = fmixer->card;
+	struct snd_mixer_oss *mixer = fmixer->mixer;
+	struct snd_kcontrol *kctl;
+	struct snd_mixer_oss_slot *pslot;
+	struct slot *slot = NULL;
+	struct snd_ctl_elem_info *uinfo;
+	struct snd_ctl_elem_value *uctl;
+	int err;
+	unsigned int idx;
+
+	uinfo = kzalloc(sizeof(*uinfo), GFP_KERNEL);
+	uctl = kzalloc(sizeof(*uctl), GFP_KERNEL);
+	if (uinfo == NULL || uctl == NULL) {
+		err = -ENOMEM;
+		goto __free_only;
+	}
+	down_read(&card->controls_rwsem);
+	kctl = snd_mixer_oss_test_id(mixer, "Capture Source", 0);
+	if (! kctl) {
+		err = -ENOENT;
+		goto __unlock;
+	}
+	err = kctl->info(kctl, uinfo);
+	if (err < 0)
+		goto __unlock;
+	for (idx = 0; idx < 32; idx++) {
+		if (!(mixer->mask_recsrc & (1 << idx)))
+			continue;
+		pslot = &mixer->slots[idx];
+		slot = pslot->private_data;
+		if (slot->signature != SNDRV_MIXER_OSS_SIGNATURE)
+			continue;
+		if (!(slot->present & SNDRV_MIXER_OSS_PRESENT_CAPTURE))
+			continue;
+		if (idx == active_index)
+			break;
+		slot = NULL;
+	}
+	if (! slot)
+		goto __unlock;
+	for (idx = 0; idx < uinfo->count; idx++)
+		uctl->value.enumerated.item[idx] = slot->capture_item;
+	err = kctl->put(kctl, uctl);
+	if (err > 0)
+		snd_ctl_notify(fmixer->card, SNDRV_CTL_EVENT_MASK_VALUE, &kctl->id);
+	err = 0;
+      __unlock:
+	up_read(&card->controls_rwsem);
+      __free_only:
+	kfree(uctl);
+	kfree(uinfo);
+	return err;
+}
+
+struct snd_mixer_oss_assign_table {
+	int oss_id;
+	const char *name;
+	int index;
+};
+
+static int snd_mixer_oss_build_test(struct snd_mixer_oss *mixer, struct slot *slot, const char *name, int index, int item)
+{
+	struct snd_ctl_elem_info *info;
+	struct snd_kcontrol *kcontrol;
+	struct snd_card *card = mixer->card;
+	int err;
+
+	down_read(&card->controls_rwsem);
+	kcontrol = snd_mixer_oss_test_id(mixer, name, index);
+	if (kcontrol == NULL) {
+		up_read(&card->controls_rwsem);
+		return 0;
+	}
+	info = kmalloc(sizeof(*info), GFP_KERNEL);
+	if (! info) {
+		up_read(&card->controls_rwsem);
+		return -ENOMEM;
+	}
+	err = kcontrol->info(kcontrol, info);
+	if (err < 0) {
+		up_read(&card->controls_rwsem);
+		kfree(info);
+		return err;
+	}
+	slot->numid[item] = kcontrol->id.numid;
+	up_read(&card->controls_rwsem);
+	if (info->count > slot->channels)
+		slot->channels = info->count;
+	slot->present |= 1 << item;
+	kfree(info);
+	return 0;
+}
+
+static void snd_mixer_oss_slot_free(struct snd_mixer_oss_slot *chn)
+{
+	struct slot *p = chn->private_data;
+	if (p) {
+		if (p->allocated && p->assigned) {
+			kfree_const(p->assigned->name);
+			kfree_const(p->assigned);
+		}
+		kfree(p);
+	}
+}
+
+static void mixer_slot_clear(struct snd_mixer_oss_slot *rslot)
+{
+	int idx = rslot->number; /* remember this */
+	if (rslot->private_free)
+		rslot->private_free(rslot);
+	memset(rslot, 0, sizeof(*rslot));
+	rslot->number = idx;
+}
+
+/* In a separate function to keep gcc 3.2 happy - do NOT merge this in
+   snd_mixer_oss_build_input! */
+static int snd_mixer_oss_build_test_all(struct snd_mixer_oss *mixer,
+					const struct snd_mixer_oss_assign_table *ptr,
+					struct slot *slot)
+{
+	char str[64];
+	int err;
+
+	err = snd_mixer_oss_build_test(mixer, slot, ptr->name, ptr->index,
+				       SNDRV_MIXER_OSS_ITEM_GLOBAL);
+	if (err)
+		return err;
+	sprintf(str, "%s Switch", ptr->name);
+	err = snd_mixer_oss_build_test(mixer, slot, str, ptr->index,
+				       SNDRV_MIXER_OSS_ITEM_GSWITCH);
+	if (err)
+		return err;
+	sprintf(str, "%s Route", ptr->name);
+	err = snd_mixer_oss_build_test(mixer, slot, str, ptr->index,
+				       SNDRV_MIXER_OSS_ITEM_GROUTE);
+	if (err)
+		return err;
+	sprintf(str, "%s Volume", ptr->name);
+	err = snd_mixer_oss_build_test(mixer, slot, str, ptr->index,
+				       SNDRV_MIXER_OSS_ITEM_GVOLUME);
+	if (err)
+		return err;
+	sprintf(str, "%s Playback Switch", ptr->name);
+	err = snd_mixer_oss_build_test(mixer, slot, str, ptr->index,
+				       SNDRV_MIXER_OSS_ITEM_PSWITCH);
+	if (err)
+		return err;
+	sprintf(str, "%s Playback Route", ptr->name);
+	err = snd_mixer_oss_build_test(mixer, slot, str, ptr->index,
+				       SNDRV_MIXER_OSS_ITEM_PROUTE);
+	if (err)
+		return err;
+	sprintf(str, "%s Playback Volume", ptr->name);
+	err = snd_mixer_oss_build_test(mixer, slot, str, ptr->index,
+				       SNDRV_MIXER_OSS_ITEM_PVOLUME);
+	if (err)
+		return err;
+	sprintf(str, "%s Capture Switch", ptr->name);
+	err = snd_mixer_oss_build_test(mixer, slot, str, ptr->index,
+				       SNDRV_MIXER_OSS_ITEM_CSWITCH);
+	if (err)
+		return err;
+	sprintf(str, "%s Capture Route", ptr->name);
+	err = snd_mixer_oss_build_test(mixer, slot, str, ptr->index,
+				       SNDRV_MIXER_OSS_ITEM_CROUTE);
+	if (err)
+		return err;
+	sprintf(str, "%s Capture Volume", ptr->name);
+	err = snd_mixer_oss_build_test(mixer, slot, str, ptr->index,
+				       SNDRV_MIXER_OSS_ITEM_CVOLUME);
+	if (err)
+		return err;
+
+	return 0;
+}
+
+/*
+ * build an OSS mixer element.
+ * ptr_allocated means the entry is dynamically allocated (change via proc file).
+ * when replace_old = 1, the old entry is replaced with the new one.
+ */
+static int snd_mixer_oss_build_input(struct snd_mixer_oss *mixer,
+				     const struct snd_mixer_oss_assign_table *ptr,
+				     int ptr_allocated, int replace_old)
+{
+	struct slot slot;
+	struct slot *pslot;
+	struct snd_kcontrol *kctl;
+	struct snd_mixer_oss_slot *rslot;
+	char str[64];	
+	
+	/* check if already assigned */
+	if (mixer->slots[ptr->oss_id].get_volume && ! replace_old)
+		return 0;
+
+	memset(&slot, 0, sizeof(slot));
+	memset(slot.numid, 0xff, sizeof(slot.numid)); /* ID_UNKNOWN */
+	if (snd_mixer_oss_build_test_all(mixer, ptr, &slot))
+		return 0;
+	down_read(&mixer->card->controls_rwsem);
+	kctl = NULL;
+	if (!ptr->index)
+		kctl = snd_mixer_oss_test_id(mixer, "Capture Source", 0);
+	if (kctl) {
+		struct snd_ctl_elem_info *uinfo;
+
+		uinfo = kzalloc(sizeof(*uinfo), GFP_KERNEL);
+		if (! uinfo) {
+			up_read(&mixer->card->controls_rwsem);
+			return -ENOMEM;
+		}
+			
+		if (kctl->info(kctl, uinfo)) {
+			up_read(&mixer->card->controls_rwsem);
+			kfree(uinfo);
+			return 0;
+		}
+		strcpy(str, ptr->name);
+		if (!strcmp(str, "Master"))
+			strcpy(str, "Mix");
+		if (!strcmp(str, "Master Mono"))
+			strcpy(str, "Mix Mono");
+		slot.capture_item = 0;
+		if (!strcmp(uinfo->value.enumerated.name, str)) {
+			slot.present |= SNDRV_MIXER_OSS_PRESENT_CAPTURE;
+		} else {
+			for (slot.capture_item = 1; slot.capture_item < uinfo->value.enumerated.items; slot.capture_item++) {
+				uinfo->value.enumerated.item = slot.capture_item;
+				if (kctl->info(kctl, uinfo)) {
+					up_read(&mixer->card->controls_rwsem);
+					kfree(uinfo);
+					return 0;
+				}
+				if (!strcmp(uinfo->value.enumerated.name, str)) {
+					slot.present |= SNDRV_MIXER_OSS_PRESENT_CAPTURE;
+					break;
+				}
+			}
+		}
+		kfree(uinfo);
+	}
+	up_read(&mixer->card->controls_rwsem);
+	if (slot.present != 0) {
+		pslot = kmalloc(sizeof(slot), GFP_KERNEL);
+		if (! pslot)
+			return -ENOMEM;
+		*pslot = slot;
+		pslot->signature = SNDRV_MIXER_OSS_SIGNATURE;
+		pslot->assigned = ptr;
+		pslot->allocated = ptr_allocated;
+		rslot = &mixer->slots[ptr->oss_id];
+		mixer_slot_clear(rslot);
+		rslot->stereo = slot.channels > 1 ? 1 : 0;
+		rslot->get_volume = snd_mixer_oss_get_volume1;
+		rslot->put_volume = snd_mixer_oss_put_volume1;
+		/* note: ES18xx have both Capture Source and XX Capture Volume !!! */
+		if (slot.present & SNDRV_MIXER_OSS_PRESENT_CSWITCH) {
+			rslot->get_recsrc = snd_mixer_oss_get_recsrc1_sw;
+			rslot->put_recsrc = snd_mixer_oss_put_recsrc1_sw;
+		} else if (slot.present & SNDRV_MIXER_OSS_PRESENT_CROUTE) {
+			rslot->get_recsrc = snd_mixer_oss_get_recsrc1_route;
+			rslot->put_recsrc = snd_mixer_oss_put_recsrc1_route;
+		} else if (slot.present & SNDRV_MIXER_OSS_PRESENT_CAPTURE) {
+			mixer->mask_recsrc |= 1 << ptr->oss_id;
+		}
+		rslot->private_data = pslot;
+		rslot->private_free = snd_mixer_oss_slot_free;
+		return 1;
+	}
+	return 0;
+}
+
+#ifdef CONFIG_SND_PROC_FS
+/*
+ */
+#define MIXER_VOL(name) [SOUND_MIXER_##name] = #name
+static const char * const oss_mixer_names[SNDRV_OSS_MAX_MIXERS] = {
+	MIXER_VOL(VOLUME),
+	MIXER_VOL(BASS),
+	MIXER_VOL(TREBLE),
+	MIXER_VOL(SYNTH),
+	MIXER_VOL(PCM),
+	MIXER_VOL(SPEAKER),
+	MIXER_VOL(LINE),
+	MIXER_VOL(MIC),
+	MIXER_VOL(CD),
+	MIXER_VOL(IMIX),
+	MIXER_VOL(ALTPCM),
+	MIXER_VOL(RECLEV),
+	MIXER_VOL(IGAIN),
+	MIXER_VOL(OGAIN),
+	MIXER_VOL(LINE1),
+	MIXER_VOL(LINE2),
+	MIXER_VOL(LINE3),
+	MIXER_VOL(DIGITAL1),
+	MIXER_VOL(DIGITAL2),
+	MIXER_VOL(DIGITAL3),
+	MIXER_VOL(PHONEIN),
+	MIXER_VOL(PHONEOUT),
+	MIXER_VOL(VIDEO),
+	MIXER_VOL(RADIO),
+	MIXER_VOL(MONITOR),
+};
+	
+/*
+ *  /proc interface
+ */
+
+static void snd_mixer_oss_proc_read(struct snd_info_entry *entry,
+				    struct snd_info_buffer *buffer)
+{
+	struct snd_mixer_oss *mixer = entry->private_data;
+	int i;
+
+	mutex_lock(&mixer->reg_mutex);
+	for (i = 0; i < SNDRV_OSS_MAX_MIXERS; i++) {
+		struct slot *p;
+
+		if (! oss_mixer_names[i])
+			continue;
+		p = (struct slot *)mixer->slots[i].private_data;
+		snd_iprintf(buffer, "%s ", oss_mixer_names[i]);
+		if (p && p->assigned)
+			snd_iprintf(buffer, "\"%s\" %d\n",
+				    p->assigned->name,
+				    p->assigned->index);
+		else
+			snd_iprintf(buffer, "\"\" 0\n");
+	}
+	mutex_unlock(&mixer->reg_mutex);
+}
+
+static void snd_mixer_oss_proc_write(struct snd_info_entry *entry,
+				     struct snd_info_buffer *buffer)
+{
+	struct snd_mixer_oss *mixer = entry->private_data;
+	char line[128], str[32], idxstr[16];
+	const char *cptr;
+	unsigned int idx;
+	int ch;
+	struct snd_mixer_oss_assign_table *tbl;
+	struct slot *slot;
+
+	while (!snd_info_get_line(buffer, line, sizeof(line))) {
+		cptr = snd_info_get_str(str, line, sizeof(str));
+		for (ch = 0; ch < SNDRV_OSS_MAX_MIXERS; ch++)
+			if (oss_mixer_names[ch] && strcmp(oss_mixer_names[ch], str) == 0)
+				break;
+		if (ch >= SNDRV_OSS_MAX_MIXERS) {
+			pr_err("ALSA: mixer_oss: invalid OSS volume '%s'\n",
+			       str);
+			continue;
+		}
+		cptr = snd_info_get_str(str, cptr, sizeof(str));
+		if (! *str) {
+			/* remove the entry */
+			mutex_lock(&mixer->reg_mutex);
+			mixer_slot_clear(&mixer->slots[ch]);
+			mutex_unlock(&mixer->reg_mutex);
+			continue;
+		}
+		snd_info_get_str(idxstr, cptr, sizeof(idxstr));
+		idx = simple_strtoul(idxstr, NULL, 10);
+		if (idx >= 0x4000) { /* too big */
+			pr_err("ALSA: mixer_oss: invalid index %d\n", idx);
+			continue;
+		}
+		mutex_lock(&mixer->reg_mutex);
+		slot = (struct slot *)mixer->slots[ch].private_data;
+		if (slot && slot->assigned &&
+		    slot->assigned->index == idx && ! strcmp(slot->assigned->name, str))
+			/* not changed */
+			goto __unlock;
+		tbl = kmalloc(sizeof(*tbl), GFP_KERNEL);
+		if (!tbl)
+			goto __unlock;
+		tbl->oss_id = ch;
+		tbl->name = kstrdup(str, GFP_KERNEL);
+		if (! tbl->name) {
+			kfree(tbl);
+			goto __unlock;
+		}
+		tbl->index = idx;
+		if (snd_mixer_oss_build_input(mixer, tbl, 1, 1) <= 0) {
+			kfree(tbl->name);
+			kfree(tbl);
+		}
+	__unlock:
+		mutex_unlock(&mixer->reg_mutex);
+	}
+}
+
+static void snd_mixer_oss_proc_init(struct snd_mixer_oss *mixer)
+{
+	struct snd_info_entry *entry;
+
+	entry = snd_info_create_card_entry(mixer->card, "oss_mixer",
+					   mixer->card->proc_root);
+	if (! entry)
+		return;
+	entry->content = SNDRV_INFO_CONTENT_TEXT;
+	entry->mode = S_IFREG | 0644;
+	entry->c.text.read = snd_mixer_oss_proc_read;
+	entry->c.text.write = snd_mixer_oss_proc_write;
+	entry->private_data = mixer;
+	if (snd_info_register(entry) < 0) {
+		snd_info_free_entry(entry);
+		entry = NULL;
+	}
+	mixer->proc_entry = entry;
+}
+
+static void snd_mixer_oss_proc_done(struct snd_mixer_oss *mixer)
+{
+	snd_info_free_entry(mixer->proc_entry);
+	mixer->proc_entry = NULL;
+}
+#else /* !CONFIG_SND_PROC_FS */
+#define snd_mixer_oss_proc_init(mix)
+#define snd_mixer_oss_proc_done(mix)
+#endif /* CONFIG_SND_PROC_FS */
+
+static void snd_mixer_oss_build(struct snd_mixer_oss *mixer)
+{
+	static const struct snd_mixer_oss_assign_table table[] = {
+		{ SOUND_MIXER_VOLUME, 	"Master",		0 },
+		{ SOUND_MIXER_VOLUME, 	"Front",		0 }, /* fallback */
+		{ SOUND_MIXER_BASS,	"Tone Control - Bass",	0 },
+		{ SOUND_MIXER_TREBLE,	"Tone Control - Treble", 0 },
+		{ SOUND_MIXER_SYNTH,	"Synth",		0 },
+		{ SOUND_MIXER_SYNTH,	"FM",			0 }, /* fallback */
+		{ SOUND_MIXER_SYNTH,	"Music",		0 }, /* fallback */
+		{ SOUND_MIXER_PCM,	"PCM",			0 },
+		{ SOUND_MIXER_SPEAKER,	"Beep", 		0 },
+		{ SOUND_MIXER_SPEAKER,	"PC Speaker", 		0 }, /* fallback */
+		{ SOUND_MIXER_SPEAKER,	"Speaker", 		0 }, /* fallback */
+		{ SOUND_MIXER_LINE,	"Line", 		0 },
+		{ SOUND_MIXER_MIC,	"Mic", 			0 },
+		{ SOUND_MIXER_CD,	"CD", 			0 },
+		{ SOUND_MIXER_IMIX,	"Monitor Mix", 		0 },
+		{ SOUND_MIXER_ALTPCM,	"PCM",			1 },
+		{ SOUND_MIXER_ALTPCM,	"Headphone",		0 }, /* fallback */
+		{ SOUND_MIXER_ALTPCM,	"Wave",			0 }, /* fallback */
+		{ SOUND_MIXER_RECLEV,	"-- nothing --",	0 },
+		{ SOUND_MIXER_IGAIN,	"Capture",		0 },
+		{ SOUND_MIXER_OGAIN,	"Playback",		0 },
+		{ SOUND_MIXER_LINE1,	"Aux",			0 },
+		{ SOUND_MIXER_LINE2,	"Aux",			1 },
+		{ SOUND_MIXER_LINE3,	"Aux",			2 },
+		{ SOUND_MIXER_DIGITAL1,	"Digital",		0 },
+		{ SOUND_MIXER_DIGITAL1,	"IEC958",		0 }, /* fallback */
+		{ SOUND_MIXER_DIGITAL1,	"IEC958 Optical",	0 }, /* fallback */
+		{ SOUND_MIXER_DIGITAL1,	"IEC958 Coaxial",	0 }, /* fallback */
+		{ SOUND_MIXER_DIGITAL2,	"Digital",		1 },
+		{ SOUND_MIXER_DIGITAL3,	"Digital",		2 },
+		{ SOUND_MIXER_PHONEIN,	"Phone",		0 },
+		{ SOUND_MIXER_PHONEOUT,	"Master Mono",		0 },
+		{ SOUND_MIXER_PHONEOUT,	"Speaker",		0 }, /*fallback*/
+		{ SOUND_MIXER_PHONEOUT,	"Mono",			0 }, /*fallback*/
+		{ SOUND_MIXER_PHONEOUT,	"Phone",		0 }, /* fallback */
+		{ SOUND_MIXER_VIDEO,	"Video",		0 },
+		{ SOUND_MIXER_RADIO,	"Radio",		0 },
+		{ SOUND_MIXER_MONITOR,	"Monitor",		0 }
+	};
+	unsigned int idx;
+	
+	for (idx = 0; idx < ARRAY_SIZE(table); idx++)
+		snd_mixer_oss_build_input(mixer, &table[idx], 0, 0);
+	if (mixer->mask_recsrc) {
+		mixer->get_recsrc = snd_mixer_oss_get_recsrc2;
+		mixer->put_recsrc = snd_mixer_oss_put_recsrc2;
+	}
+}
+
+/*
+ *
+ */
+
+static int snd_mixer_oss_free1(void *private)
+{
+	struct snd_mixer_oss *mixer = private;
+	struct snd_card *card;
+	int idx;
+ 
+	if (!mixer)
+		return 0;
+	card = mixer->card;
+	if (snd_BUG_ON(mixer != card->mixer_oss))
+		return -ENXIO;
+	card->mixer_oss = NULL;
+	for (idx = 0; idx < SNDRV_OSS_MAX_MIXERS; idx++) {
+		struct snd_mixer_oss_slot *chn = &mixer->slots[idx];
+		if (chn->private_free)
+			chn->private_free(chn);
+	}
+	kfree(mixer);
+	return 0;
+}
+
+static int snd_mixer_oss_notify_handler(struct snd_card *card, int cmd)
+{
+	struct snd_mixer_oss *mixer;
+
+	if (cmd == SND_MIXER_OSS_NOTIFY_REGISTER) {
+		int idx, err;
+
+		mixer = kcalloc(2, sizeof(*mixer), GFP_KERNEL);
+		if (mixer == NULL)
+			return -ENOMEM;
+		mutex_init(&mixer->reg_mutex);
+		err = snd_register_oss_device(SNDRV_OSS_DEVICE_TYPE_MIXER,
+					      card, 0,
+					      &snd_mixer_oss_f_ops, card);
+		if (err < 0) {
+			dev_err(card->dev,
+				"unable to register OSS mixer device %i:%i\n",
+				card->number, 0);
+			kfree(mixer);
+			return err;
+		}
+		mixer->oss_dev_alloc = 1;
+		mixer->card = card;
+		if (*card->mixername)
+			strscpy(mixer->name, card->mixername, sizeof(mixer->name));
+		else
+			snprintf(mixer->name, sizeof(mixer->name),
+				 "mixer%i", card->number);
+#ifdef SNDRV_OSS_INFO_DEV_MIXERS
+		snd_oss_info_register(SNDRV_OSS_INFO_DEV_MIXERS,
+				      card->number,
+				      mixer->name);
+#endif
+		for (idx = 0; idx < SNDRV_OSS_MAX_MIXERS; idx++)
+			mixer->slots[idx].number = idx;
+		card->mixer_oss = mixer;
+		snd_mixer_oss_build(mixer);
+		snd_mixer_oss_proc_init(mixer);
+	} else {
+		mixer = card->mixer_oss;
+		if (mixer == NULL)
+			return 0;
+		if (mixer->oss_dev_alloc) {
+#ifdef SNDRV_OSS_INFO_DEV_MIXERS
+			snd_oss_info_unregister(SNDRV_OSS_INFO_DEV_MIXERS, mixer->card->number);
+#endif
+			snd_unregister_oss_device(SNDRV_OSS_DEVICE_TYPE_MIXER, mixer->card, 0);
+			mixer->oss_dev_alloc = 0;
+		}
+		if (cmd == SND_MIXER_OSS_NOTIFY_DISCONNECT)
+			return 0;
+		snd_mixer_oss_proc_done(mixer);
+		return snd_mixer_oss_free1(mixer);
+	}
+	return 0;
+}
+
+static int __init alsa_mixer_oss_init(void)
+{
+	struct snd_card *card;
+	int idx;
+	
+	snd_mixer_oss_notify_callback = snd_mixer_oss_notify_handler;
+	for (idx = 0; idx < SNDRV_CARDS; idx++) {
+		card = snd_card_ref(idx);
+		if (card) {
+			snd_mixer_oss_notify_handler(card, SND_MIXER_OSS_NOTIFY_REGISTER);
+			snd_card_unref(card);
+		}
+	}
+	return 0;
+}
+
+static void __exit alsa_mixer_oss_exit(void)
+{
+	struct snd_card *card;
+	int idx;
+
+	snd_mixer_oss_notify_callback = NULL;
+	for (idx = 0; idx < SNDRV_CARDS; idx++) {
+		card = snd_card_ref(idx);
+		if (card) {
+			snd_mixer_oss_notify_handler(card, SND_MIXER_OSS_NOTIFY_FREE);
+			snd_card_unref(card);
+		}
+	}
+}
+
+module_init(alsa_mixer_oss_init)
+module_exit(alsa_mixer_oss_exit)