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, 490 insertions, 0 deletions

diff --git a/sound/synth/emux/emux_oss.c b/sound/synth/emux/emux_oss.c
new file mode 100644
index 000000000..d8d32671f
--- /dev/null
+++ b/sound/synth/emux/emux_oss.c
@@ -0,0 +1,490 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ *  Interface for OSS sequencer emulation
+ *
+ *  Copyright (C) 1999 Takashi Iwai <tiwai@suse.de>
+ *
+ * Changes
+ * 19990227   Steve Ratcliffe   Made separate file and merged in latest
+ * 				midi emulation.
+ */
+
+
+#include <linux/export.h>
+#include <linux/uaccess.h>
+#include <sound/core.h>
+#include "emux_voice.h"
+#include <sound/asoundef.h>
+
+static int snd_emux_open_seq_oss(struct snd_seq_oss_arg *arg, void *closure);
+static int snd_emux_close_seq_oss(struct snd_seq_oss_arg *arg);
+static int snd_emux_ioctl_seq_oss(struct snd_seq_oss_arg *arg, unsigned int cmd,
+				  unsigned long ioarg);
+static int snd_emux_load_patch_seq_oss(struct snd_seq_oss_arg *arg, int format,
+				       const char __user *buf, int offs, int count);
+static int snd_emux_reset_seq_oss(struct snd_seq_oss_arg *arg);
+static int snd_emux_event_oss_input(struct snd_seq_event *ev, int direct,
+				    void *private, int atomic, int hop);
+static void reset_port_mode(struct snd_emux_port *port, int midi_mode);
+static void emuspec_control(struct snd_emux *emu, struct snd_emux_port *port,
+			    int cmd, unsigned char *event, int atomic, int hop);
+static void gusspec_control(struct snd_emux *emu, struct snd_emux_port *port,
+			    int cmd, unsigned char *event, int atomic, int hop);
+static void fake_event(struct snd_emux *emu, struct snd_emux_port *port,
+		       int ch, int param, int val, int atomic, int hop);
+
+/* operators */
+static const struct snd_seq_oss_callback oss_callback = {
+	.owner = THIS_MODULE,
+	.open = snd_emux_open_seq_oss,
+	.close = snd_emux_close_seq_oss,
+	.ioctl = snd_emux_ioctl_seq_oss,
+	.load_patch = snd_emux_load_patch_seq_oss,
+	.reset = snd_emux_reset_seq_oss,
+};
+
+
+/*
+ * register OSS synth
+ */
+
+void
+snd_emux_init_seq_oss(struct snd_emux *emu)
+{
+	struct snd_seq_oss_reg *arg;
+	struct snd_seq_device *dev;
+
+	/* using device#1 here for avoiding conflicts with OPL3 */
+	if (snd_seq_device_new(emu->card, 1, SNDRV_SEQ_DEV_ID_OSS,
+			       sizeof(struct snd_seq_oss_reg), &dev) < 0)
+		return;
+
+	emu->oss_synth = dev;
+	strcpy(dev->name, emu->name);
+	arg = SNDRV_SEQ_DEVICE_ARGPTR(dev);
+	arg->type = SYNTH_TYPE_SAMPLE;
+	arg->subtype = SAMPLE_TYPE_AWE32;
+	arg->nvoices = emu->max_voices;
+	arg->oper = oss_callback;
+	arg->private_data = emu;
+
+	/* register to OSS synth table */
+	snd_device_register(emu->card, dev);
+}
+
+
+/*
+ * unregister
+ */
+void
+snd_emux_detach_seq_oss(struct snd_emux *emu)
+{
+	if (emu->oss_synth) {
+		snd_device_free(emu->card, emu->oss_synth);
+		emu->oss_synth = NULL;
+	}
+}
+
+
+/* use port number as a unique soundfont client number */
+#define SF_CLIENT_NO(p)	((p) + 0x1000)
+
+/*
+ * open port for OSS sequencer
+ */
+static int
+snd_emux_open_seq_oss(struct snd_seq_oss_arg *arg, void *closure)
+{
+	struct snd_emux *emu;
+	struct snd_emux_port *p;
+	struct snd_seq_port_callback callback;
+	char tmpname[64];
+
+	emu = closure;
+	if (snd_BUG_ON(!arg || !emu))
+		return -ENXIO;
+
+	if (!snd_emux_inc_count(emu))
+		return -EFAULT;
+
+	memset(&callback, 0, sizeof(callback));
+	callback.owner = THIS_MODULE;
+	callback.event_input = snd_emux_event_oss_input;
+
+	sprintf(tmpname, "%s OSS Port", emu->name);
+	p = snd_emux_create_port(emu, tmpname, 32,
+				 1, &callback);
+	if (p == NULL) {
+		snd_printk(KERN_ERR "can't create port\n");
+		snd_emux_dec_count(emu);
+		return -ENOMEM;
+	}
+
+	/* fill the argument data */
+	arg->private_data = p;
+	arg->addr.client = p->chset.client;
+	arg->addr.port = p->chset.port;
+	p->oss_arg = arg;
+
+	reset_port_mode(p, arg->seq_mode);
+
+	snd_emux_reset_port(p);
+	return 0;
+}
+
+
+#define DEFAULT_DRUM_FLAGS	((1<<9) | (1<<25))
+
+/*
+ * reset port mode
+ */
+static void
+reset_port_mode(struct snd_emux_port *port, int midi_mode)
+{
+	if (midi_mode) {
+		port->port_mode = SNDRV_EMUX_PORT_MODE_OSS_MIDI;
+		port->drum_flags = DEFAULT_DRUM_FLAGS;
+		port->volume_atten = 0;
+		port->oss_arg->event_passing = SNDRV_SEQ_OSS_PROCESS_KEYPRESS;
+	} else {
+		port->port_mode = SNDRV_EMUX_PORT_MODE_OSS_SYNTH;
+		port->drum_flags = 0;
+		port->volume_atten = 32;
+		port->oss_arg->event_passing = SNDRV_SEQ_OSS_PROCESS_EVENTS;
+	}
+}
+
+
+/*
+ * close port
+ */
+static int
+snd_emux_close_seq_oss(struct snd_seq_oss_arg *arg)
+{
+	struct snd_emux *emu;
+	struct snd_emux_port *p;
+
+	if (snd_BUG_ON(!arg))
+		return -ENXIO;
+	p = arg->private_data;
+	if (snd_BUG_ON(!p))
+		return -ENXIO;
+
+	emu = p->emu;
+	if (snd_BUG_ON(!emu))
+		return -ENXIO;
+
+	snd_emux_sounds_off_all(p);
+	snd_soundfont_close_check(emu->sflist, SF_CLIENT_NO(p->chset.port));
+	snd_seq_event_port_detach(p->chset.client, p->chset.port);
+	snd_emux_dec_count(emu);
+
+	return 0;
+}
+
+
+/*
+ * load patch
+ */
+static int
+snd_emux_load_patch_seq_oss(struct snd_seq_oss_arg *arg, int format,
+			    const char __user *buf, int offs, int count)
+{
+	struct snd_emux *emu;
+	struct snd_emux_port *p;
+	int rc;
+
+	if (snd_BUG_ON(!arg))
+		return -ENXIO;
+	p = arg->private_data;
+	if (snd_BUG_ON(!p))
+		return -ENXIO;
+
+	emu = p->emu;
+	if (snd_BUG_ON(!emu))
+		return -ENXIO;
+
+	if (format == GUS_PATCH)
+		rc = snd_soundfont_load_guspatch(emu->sflist, buf, count,
+						 SF_CLIENT_NO(p->chset.port));
+	else if (format == SNDRV_OSS_SOUNDFONT_PATCH) {
+		struct soundfont_patch_info patch;
+		if (count < (int)sizeof(patch))
+			return -EINVAL;
+		if (copy_from_user(&patch, buf, sizeof(patch)))
+			return -EFAULT;
+		if (patch.type >= SNDRV_SFNT_LOAD_INFO &&
+		    patch.type <= SNDRV_SFNT_PROBE_DATA)
+			rc = snd_soundfont_load(emu->sflist, buf, count, SF_CLIENT_NO(p->chset.port));
+		else {
+			if (emu->ops.load_fx)
+				rc = emu->ops.load_fx(emu, patch.type, patch.optarg, buf, count);
+			else
+				rc = -EINVAL;
+		}
+	} else
+		rc = 0;
+	return rc;
+}
+
+
+/*
+ * ioctl
+ */
+static int
+snd_emux_ioctl_seq_oss(struct snd_seq_oss_arg *arg, unsigned int cmd, unsigned long ioarg)
+{
+	struct snd_emux_port *p;
+	struct snd_emux *emu;
+
+	if (snd_BUG_ON(!arg))
+		return -ENXIO;
+	p = arg->private_data;
+	if (snd_BUG_ON(!p))
+		return -ENXIO;
+
+	emu = p->emu;
+	if (snd_BUG_ON(!emu))
+		return -ENXIO;
+
+	switch (cmd) {
+	case SNDCTL_SEQ_RESETSAMPLES:
+		snd_soundfont_remove_samples(emu->sflist);
+		return 0;
+			
+	case SNDCTL_SYNTH_MEMAVL:
+		if (emu->memhdr)
+			return snd_util_mem_avail(emu->memhdr);
+		return 0;
+	}
+
+	return 0;
+}
+
+
+/*
+ * reset device
+ */
+static int
+snd_emux_reset_seq_oss(struct snd_seq_oss_arg *arg)
+{
+	struct snd_emux_port *p;
+
+	if (snd_BUG_ON(!arg))
+		return -ENXIO;
+	p = arg->private_data;
+	if (snd_BUG_ON(!p))
+		return -ENXIO;
+	snd_emux_reset_port(p);
+	return 0;
+}
+
+
+/*
+ * receive raw events: only SEQ_PRIVATE is accepted.
+ */
+static int
+snd_emux_event_oss_input(struct snd_seq_event *ev, int direct, void *private_data,
+			 int atomic, int hop)
+{
+	struct snd_emux *emu;
+	struct snd_emux_port *p;
+	unsigned char cmd, *data;
+
+	p = private_data;
+	if (snd_BUG_ON(!p))
+		return -EINVAL;
+	emu = p->emu;
+	if (snd_BUG_ON(!emu))
+		return -EINVAL;
+	if (ev->type != SNDRV_SEQ_EVENT_OSS)
+		return snd_emux_event_input(ev, direct, private_data, atomic, hop);
+
+	data = ev->data.raw8.d;
+	/* only SEQ_PRIVATE is accepted */
+	if (data[0] != 0xfe)
+		return 0;
+	cmd = data[2] & _EMUX_OSS_MODE_VALUE_MASK;
+	if (data[2] & _EMUX_OSS_MODE_FLAG)
+		emuspec_control(emu, p, cmd, data, atomic, hop);
+	else
+		gusspec_control(emu, p, cmd, data, atomic, hop);
+	return 0;
+}
+
+
+/*
+ * OSS/AWE driver specific h/w controls
+ */
+static void
+emuspec_control(struct snd_emux *emu, struct snd_emux_port *port, int cmd,
+		unsigned char *event, int atomic, int hop)
+{
+	int voice;
+	unsigned short p1;
+	short p2;
+	int i;
+	struct snd_midi_channel *chan;
+
+	voice = event[3];
+	if (voice < 0 || voice >= port->chset.max_channels)
+		chan = NULL;
+	else
+		chan = &port->chset.channels[voice];
+
+	p1 = *(unsigned short *) &event[4];
+	p2 = *(short *) &event[6];
+
+	switch (cmd) {
+#if 0 /* don't do this atomically */
+	case _EMUX_OSS_REMOVE_LAST_SAMPLES:
+		snd_soundfont_remove_unlocked(emu->sflist);
+		break;
+#endif
+	case _EMUX_OSS_SEND_EFFECT:
+		if (chan)
+			snd_emux_send_effect_oss(port, chan, p1, p2);
+		break;
+		
+	case _EMUX_OSS_TERMINATE_ALL:
+		snd_emux_terminate_all(emu);
+		break;
+
+	case _EMUX_OSS_TERMINATE_CHANNEL:
+		/*snd_emux_mute_channel(emu, chan);*/
+		break;
+	case _EMUX_OSS_RESET_CHANNEL:
+		/*snd_emux_channel_init(chset, chan);*/
+		break;
+
+	case _EMUX_OSS_RELEASE_ALL:
+		fake_event(emu, port, voice, MIDI_CTL_ALL_NOTES_OFF, 0, atomic, hop);
+		break;
+	case _EMUX_OSS_NOTEOFF_ALL:
+		fake_event(emu, port, voice, MIDI_CTL_ALL_SOUNDS_OFF, 0, atomic, hop);
+		break;
+
+	case _EMUX_OSS_INITIAL_VOLUME:
+		if (p2) {
+			port->volume_atten = (short)p1;
+			snd_emux_update_port(port, SNDRV_EMUX_UPDATE_VOLUME);
+		}
+		break;
+
+	case _EMUX_OSS_CHN_PRESSURE:
+		if (chan) {
+			chan->midi_pressure = p1;
+			snd_emux_update_channel(port, chan, SNDRV_EMUX_UPDATE_FMMOD|SNDRV_EMUX_UPDATE_FM2FRQ2);
+		}
+		break;
+
+	case _EMUX_OSS_CHANNEL_MODE:
+		reset_port_mode(port, p1);
+		snd_emux_reset_port(port);
+		break;
+
+	case _EMUX_OSS_DRUM_CHANNELS:
+		port->drum_flags = *(unsigned int*)&event[4];
+		for (i = 0; i < port->chset.max_channels; i++) {
+			chan = &port->chset.channels[i];
+			chan->drum_channel = ((port->drum_flags >> i) & 1) ? 1 : 0;
+		}
+		break;
+
+	case _EMUX_OSS_MISC_MODE:
+		if (p1 < EMUX_MD_END)
+			port->ctrls[p1] = p2;
+		break;
+	case _EMUX_OSS_DEBUG_MODE:
+		break;
+
+	default:
+		if (emu->ops.oss_ioctl)
+			emu->ops.oss_ioctl(emu, cmd, p1, p2);
+		break;
+	}
+}
+
+/*
+ * GUS specific h/w controls
+ */
+
+#include <linux/ultrasound.h>
+
+static void
+gusspec_control(struct snd_emux *emu, struct snd_emux_port *port, int cmd,
+		unsigned char *event, int atomic, int hop)
+{
+	int voice;
+	unsigned short p1;
+	int plong;
+	struct snd_midi_channel *chan;
+
+	if (port->port_mode != SNDRV_EMUX_PORT_MODE_OSS_SYNTH)
+		return;
+	if (cmd == _GUS_NUMVOICES)
+		return;
+	voice = event[3];
+	if (voice < 0 || voice >= port->chset.max_channels)
+		return;
+
+	chan = &port->chset.channels[voice];
+
+	p1 = *(unsigned short *) &event[4];
+	plong = *(int*) &event[4];
+
+	switch (cmd) {
+	case _GUS_VOICESAMPLE:
+		chan->midi_program = p1;
+		return;
+
+	case _GUS_VOICEBALA:
+		/* 0 to 15 --> 0 to 127 */
+		chan->control[MIDI_CTL_MSB_PAN] = (int)p1 << 3;
+		snd_emux_update_channel(port, chan, SNDRV_EMUX_UPDATE_PAN);
+		return;
+
+	case _GUS_VOICEVOL:
+	case _GUS_VOICEVOL2:
+		/* not supported yet */
+		return;
+
+	case _GUS_RAMPRANGE:
+	case _GUS_RAMPRATE:
+	case _GUS_RAMPMODE:
+	case _GUS_RAMPON:
+	case _GUS_RAMPOFF:
+		/* volume ramping not supported */
+		return;
+
+	case _GUS_VOLUME_SCALE:
+		return;
+
+	case _GUS_VOICE_POS:
+#ifdef SNDRV_EMUX_USE_RAW_EFFECT
+		snd_emux_send_effect(port, chan, EMUX_FX_SAMPLE_START,
+				     (short)(plong & 0x7fff),
+				     EMUX_FX_FLAG_SET);
+		snd_emux_send_effect(port, chan, EMUX_FX_COARSE_SAMPLE_START,
+				     (plong >> 15) & 0xffff,
+				     EMUX_FX_FLAG_SET);
+#endif
+		return;
+	}
+}
+
+
+/*
+ * send an event to midi emulation
+ */
+static void
+fake_event(struct snd_emux *emu, struct snd_emux_port *port, int ch, int param, int val, int atomic, int hop)
+{
+	struct snd_seq_event ev;
+	memset(&ev, 0, sizeof(ev));
+	ev.type = SNDRV_SEQ_EVENT_CONTROLLER;
+	ev.data.control.channel = ch;
+	ev.data.control.param = param;
+	ev.data.control.value = val;
+	snd_emux_event_input(&ev, 0, port, atomic, hop);
+}