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, 427 insertions, 0 deletions

diff --git a/sound/pci/trident/trident.h b/sound/pci/trident/trident.h
new file mode 100644
index 000000000..9768a7fc2
--- /dev/null
+++ b/sound/pci/trident/trident.h
@@ -0,0 +1,427 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+#ifndef __SOUND_TRIDENT_H
+#define __SOUND_TRIDENT_H
+
+/*
+ *  audio@tridentmicro.com
+ *  Fri Feb 19 15:55:28 MST 1999
+ *  Definitions for Trident 4DWave DX/NX chips
+ */
+
+#include <sound/pcm.h>
+#include <sound/mpu401.h>
+#include <sound/ac97_codec.h>
+#include <sound/util_mem.h>
+
+#define TRIDENT_DEVICE_ID_DX		((PCI_VENDOR_ID_TRIDENT<<16)|PCI_DEVICE_ID_TRIDENT_4DWAVE_DX)
+#define TRIDENT_DEVICE_ID_NX		((PCI_VENDOR_ID_TRIDENT<<16)|PCI_DEVICE_ID_TRIDENT_4DWAVE_NX)
+#define TRIDENT_DEVICE_ID_SI7018	((PCI_VENDOR_ID_SI<<16)|PCI_DEVICE_ID_SI_7018)
+
+#define SNDRV_TRIDENT_VOICE_TYPE_PCM		0
+#define SNDRV_TRIDENT_VOICE_TYPE_SYNTH		1
+#define SNDRV_TRIDENT_VOICE_TYPE_MIDI		2
+
+#define SNDRV_TRIDENT_VFLG_RUNNING		(1<<0)
+
+/* TLB code constants */
+#define SNDRV_TRIDENT_PAGE_SIZE			4096
+#define SNDRV_TRIDENT_PAGE_SHIFT			12
+#define SNDRV_TRIDENT_PAGE_MASK			((1<<SNDRV_TRIDENT_PAGE_SHIFT)-1)
+#define SNDRV_TRIDENT_MAX_PAGES			4096
+
+/*
+ * Direct registers
+ */
+
+#define TRID_REG(trident, x) ((trident)->port + (x))
+
+#define ID_4DWAVE_DX        0x2000
+#define ID_4DWAVE_NX        0x2001
+
+/* Bank definitions */
+
+#define T4D_BANK_A	0
+#define T4D_BANK_B	1
+#define T4D_NUM_BANKS	2
+
+/* Register definitions */
+
+/* Global registers */
+
+enum global_control_bits {
+	CHANNEL_IDX	= 0x0000003f,
+	OVERRUN_IE	= 0x00000400,	/* interrupt enable: capture overrun */
+	UNDERRUN_IE	= 0x00000800,	/* interrupt enable: playback underrun */
+	ENDLP_IE	= 0x00001000,	/* interrupt enable: end of buffer */
+	MIDLP_IE	= 0x00002000,	/* interrupt enable: middle buffer */
+	ETOG_IE		= 0x00004000,	/* interrupt enable: envelope toggling */
+	EDROP_IE	= 0x00008000,	/* interrupt enable: envelope drop */
+	BANK_B_EN	= 0x00010000,	/* SiS: enable bank B (64 channels) */
+	PCMIN_B_MIX	= 0x00020000,	/* SiS: PCM IN B mixing enable */
+	I2S_OUT_ASSIGN	= 0x00040000,	/* SiS: I2S Out contains surround PCM */
+	SPDIF_OUT_ASSIGN= 0x00080000,	/* SiS: 0=S/PDIF L/R | 1=PCM Out FIFO */
+	MAIN_OUT_ASSIGN = 0x00100000,	/* SiS: 0=PCM Out FIFO | 1=MMC Out buffer */
+};
+
+enum miscint_bits {
+	PB_UNDERRUN_IRQ = 0x00000001, REC_OVERRUN_IRQ = 0x00000002,
+	SB_IRQ		= 0x00000004, MPU401_IRQ      = 0x00000008,
+	OPL3_IRQ        = 0x00000010, ADDRESS_IRQ     = 0x00000020,
+	ENVELOPE_IRQ    = 0x00000040, PB_UNDERRUN     = 0x00000100,
+	REC_OVERRUN	= 0x00000200, MIXER_UNDERFLOW = 0x00000400,
+	MIXER_OVERFLOW  = 0x00000800, NX_SB_IRQ_DISABLE = 0x00001000,
+        ST_TARGET_REACHED = 0x00008000,
+	PB_24K_MODE     = 0x00010000, ST_IRQ_EN       = 0x00800000,
+	ACGPIO_IRQ	= 0x01000000
+};
+
+/* T2 legacy dma control registers. */
+#define LEGACY_DMAR0                0x00  // ADR0
+#define LEGACY_DMAR4                0x04  // CNT0
+#define LEGACY_DMAR6		    0x06  // CNT0 - High bits
+#define LEGACY_DMAR11               0x0b  // MOD 
+#define LEGACY_DMAR15               0x0f  // MMR 
+
+#define T4D_START_A		     0x80
+#define T4D_STOP_A		     0x84
+#define T4D_DLY_A		     0x88
+#define T4D_SIGN_CSO_A		     0x8c
+#define T4D_CSPF_A		     0x90
+#define T4D_CSPF_B		     0xbc
+#define T4D_CEBC_A		     0x94
+#define T4D_AINT_A		     0x98
+#define T4D_AINTEN_A		     0x9c
+#define T4D_LFO_GC_CIR               0xa0
+#define T4D_MUSICVOL_WAVEVOL         0xa8
+#define T4D_SBDELTA_DELTA_R          0xac
+#define T4D_MISCINT                  0xb0
+#define T4D_START_B                  0xb4
+#define T4D_STOP_B                   0xb8
+#define T4D_SBBL_SBCL                0xc0
+#define T4D_SBCTRL_SBE2R_SBDD        0xc4
+#define T4D_STIMER		     0xc8
+#define T4D_AINT_B                   0xd8
+#define T4D_AINTEN_B                 0xdc
+#define T4D_RCI                      0x70
+
+/* MPU-401 UART */
+#define T4D_MPU401_BASE             0x20
+#define T4D_MPUR0                   0x20
+#define T4D_MPUR1                   0x21
+#define T4D_MPUR2                   0x22
+#define T4D_MPUR3                   0x23
+
+/* S/PDIF Registers */
+#define NX_SPCTRL_SPCSO             0x24
+#define NX_SPLBA                    0x28
+#define NX_SPESO                    0x2c
+#define NX_SPCSTATUS                0x64
+
+/* Joystick */
+#define GAMEPORT_GCR                0x30
+#define GAMEPORT_MODE_ADC           0x80
+#define GAMEPORT_LEGACY             0x31
+#define GAMEPORT_AXES               0x34
+
+/* NX Specific Registers */
+#define NX_TLBC                     0x6c
+
+/* Channel Registers */
+
+#define CH_START		    0xe0
+
+#define CH_DX_CSO_ALPHA_FMS         0xe0
+#define CH_DX_ESO_DELTA             0xe8
+#define CH_DX_FMC_RVOL_CVOL         0xec
+
+#define CH_NX_DELTA_CSO             0xe0
+#define CH_NX_DELTA_ESO             0xe8
+#define CH_NX_ALPHA_FMS_FMC_RVOL_CVOL 0xec
+
+#define CH_LBA                      0xe4
+#define CH_GVSEL_PAN_VOL_CTRL_EC    0xf0
+#define CH_EBUF1                    0xf4
+#define CH_EBUF2                    0xf8
+
+/* AC-97 Registers */
+
+#define DX_ACR0_AC97_W              0x40
+#define DX_ACR1_AC97_R              0x44
+#define DX_ACR2_AC97_COM_STAT       0x48
+
+#define NX_ACR0_AC97_COM_STAT       0x40
+#define NX_ACR1_AC97_W              0x44
+#define NX_ACR2_AC97_R_PRIMARY      0x48
+#define NX_ACR3_AC97_R_SECONDARY    0x4c
+
+#define SI_AC97_WRITE		    0x40
+#define SI_AC97_READ		    0x44
+#define SI_SERIAL_INTF_CTRL	    0x48
+#define SI_AC97_GPIO		    0x4c
+#define SI_ASR0			    0x50
+#define SI_SPDIF_CS		    0x70
+#define SI_GPIO			    0x7c
+
+enum trident_nx_ac97_bits {
+	/* ACR1-3 */
+	NX_AC97_BUSY_WRITE 	= 0x0800,
+	NX_AC97_BUSY_READ	= 0x0800,
+	NX_AC97_BUSY_DATA 	= 0x0400,
+	NX_AC97_WRITE_SECONDARY = 0x0100,
+	/* ACR0 */
+	NX_AC97_SECONDARY_READY = 0x0040,
+	NX_AC97_SECONDARY_RECORD = 0x0020,
+	NX_AC97_SURROUND_OUTPUT = 0x0010,
+	NX_AC97_PRIMARY_READY	= 0x0008,
+	NX_AC97_PRIMARY_RECORD	= 0x0004,
+	NX_AC97_PCM_OUTPUT	= 0x0002,
+	NX_AC97_WARM_RESET	= 0x0001
+};
+
+enum trident_dx_ac97_bits {
+	DX_AC97_BUSY_WRITE	= 0x8000,
+	DX_AC97_BUSY_READ	= 0x8000,
+	DX_AC97_READY		= 0x0010,
+	DX_AC97_RECORD		= 0x0008,
+	DX_AC97_PLAYBACK	= 0x0002
+};
+
+enum sis7018_ac97_bits {
+	SI_AC97_BUSY_WRITE =	0x00008000,
+	SI_AC97_AUDIO_BUSY =	0x00004000,
+	SI_AC97_MODEM_BUSY =	0x00002000,
+	SI_AC97_BUSY_READ =	0x00008000,
+	SI_AC97_SECONDARY =	0x00000080,
+};
+
+enum serial_intf_ctrl_bits {
+	WARM_RESET	= 0x00000001,
+	COLD_RESET	= 0x00000002,
+	I2S_CLOCK	= 0x00000004,
+	PCM_SEC_AC97	= 0x00000008,
+	AC97_DBL_RATE	= 0x00000010,
+	SPDIF_EN	= 0x00000020,
+	I2S_OUTPUT_EN	= 0x00000040,
+	I2S_INPUT_EN	= 0x00000080,
+	PCMIN		= 0x00000100,
+	LINE1IN		= 0x00000200,
+	MICIN		= 0x00000400,
+	LINE2IN		= 0x00000800,
+	HEAD_SET_IN	= 0x00001000,
+	GPIOIN		= 0x00002000,
+	/* 7018 spec says id = 01 but the demo board routed to 10
+	   SECONDARY_ID= 0x00004000, */
+	SECONDARY_ID	= 0x00004000,
+	PCMOUT		= 0x00010000,
+	SURROUT		= 0x00020000,
+	CENTEROUT	= 0x00040000,
+	LFEOUT		= 0x00080000,
+	LINE1OUT	= 0x00100000,
+	LINE2OUT	= 0x00200000,
+	GPIOOUT		= 0x00400000,
+	SI_AC97_PRIMARY_READY = 0x01000000,
+	SI_AC97_SECONDARY_READY = 0x02000000,
+	SI_AC97_POWERDOWN = 0x04000000,
+};
+                                                                                                                                   
+/* PCM defaults */
+
+#define T4D_DEFAULT_PCM_VOL	10	/* 0 - 255 */
+#define T4D_DEFAULT_PCM_PAN	0	/* 0 - 127 */
+#define T4D_DEFAULT_PCM_RVOL	127	/* 0 - 127 */
+#define T4D_DEFAULT_PCM_CVOL	127	/* 0 - 127 */
+
+struct snd_trident;
+struct snd_trident_voice;
+struct snd_trident_pcm_mixer;
+
+struct snd_trident_port {
+	struct snd_midi_channel_set * chset;
+	struct snd_trident * trident;
+	int mode;		/* operation mode */
+	int client;		/* sequencer client number */
+	int port;		/* sequencer port number */
+	unsigned int midi_has_voices: 1;
+};
+
+struct snd_trident_memblk_arg {
+	short first_page, last_page;
+};
+
+struct snd_trident_tlb {
+	__le32 *entries;		/* 16k-aligned TLB table */
+	dma_addr_t entries_dmaaddr;	/* 16k-aligned PCI address to TLB table */
+	struct snd_dma_buffer *buffer;
+	struct snd_util_memhdr * memhdr;	/* page allocation list */
+	struct snd_dma_buffer *silent_page;
+};
+
+struct snd_trident_voice {
+	unsigned int number;
+	unsigned int use: 1,
+	    pcm: 1,
+	    synth:1,
+	    midi: 1;
+	unsigned int flags;
+	unsigned char client;
+	unsigned char port;
+	unsigned char index;
+
+	struct snd_trident_sample_ops *sample_ops;
+
+	/* channel parameters */
+	unsigned int CSO;		/* 24 bits (16 on DX) */
+	unsigned int ESO;		/* 24 bits (16 on DX) */
+	unsigned int LBA;		/* 30 bits */
+	unsigned short EC;		/* 12 bits */
+	unsigned short Alpha;		/* 12 bits */
+	unsigned short Delta;		/* 16 bits */
+	unsigned short Attribute;	/* 16 bits - SiS 7018 */
+	unsigned short Vol;		/* 12 bits (6.6) */
+	unsigned char Pan;		/* 7 bits (1.4.2) */
+	unsigned char GVSel;		/* 1 bit */
+	unsigned char RVol;		/* 7 bits (5.2) */
+	unsigned char CVol;		/* 7 bits (5.2) */
+	unsigned char FMC;		/* 2 bits */
+	unsigned char CTRL;		/* 4 bits */
+	unsigned char FMS;		/* 4 bits */
+	unsigned char LFO;		/* 8 bits */
+
+	unsigned int negCSO;	/* nonzero - use negative CSO */
+
+	struct snd_util_memblk *memblk;	/* memory block if TLB enabled */
+
+	/* PCM data */
+
+	struct snd_trident *trident;
+	struct snd_pcm_substream *substream;
+	struct snd_trident_voice *extra;	/* extra PCM voice (acts as interrupt generator) */
+	unsigned int running: 1,
+            capture: 1,
+            spdif: 1,
+            foldback: 1,
+            isync: 1,
+            isync2: 1,
+            isync3: 1;
+	int foldback_chan;		/* foldback subdevice number */
+	unsigned int stimer;		/* global sample timer (to detect spurious interrupts) */
+	unsigned int spurious_threshold; /* spurious threshold */
+	unsigned int isync_mark;
+	unsigned int isync_max;
+	unsigned int isync_ESO;
+
+	/* --- */
+
+	void *private_data;
+	void (*private_free)(struct snd_trident_voice *voice);
+};
+
+struct snd_4dwave {
+	int seq_client;
+
+	struct snd_trident_port seq_ports[4];
+	struct snd_trident_voice voices[64];	
+
+	int ChanSynthCount;		/* number of allocated synth channels */
+	int max_size;			/* maximum synth memory size in bytes */
+	int current_size;		/* current allocated synth mem in bytes */
+};
+
+struct snd_trident_pcm_mixer {
+	struct snd_trident_voice *voice;	/* active voice */
+	unsigned short vol;		/* front volume */
+	unsigned char pan;		/* pan control */
+	unsigned char rvol;		/* rear volume */
+	unsigned char cvol;		/* center volume */
+	unsigned char pad;
+};
+
+struct snd_trident {
+	int irq;
+
+	unsigned int device;	/* device ID */
+
+        unsigned char  bDMAStart;
+
+	unsigned long port;
+	unsigned long midi_port;
+
+	unsigned int spurious_irq_count;
+	unsigned int spurious_irq_max_delta;
+
+        struct snd_trident_tlb tlb;	/* TLB entries for NX cards */
+
+	unsigned char spdif_ctrl;
+	unsigned char spdif_pcm_ctrl;
+	unsigned int spdif_bits;
+	unsigned int spdif_pcm_bits;
+	struct snd_kcontrol *spdif_pcm_ctl;	/* S/PDIF settings */
+	unsigned int ac97_ctrl;
+        
+        unsigned int ChanMap[2];	/* allocation map for hardware channels */
+        
+        int ChanPCM;			/* max number of PCM channels */
+	int ChanPCMcnt;			/* actual number of PCM channels */
+
+	unsigned int ac97_detect: 1;	/* 1 = AC97 in detection phase */
+	unsigned int in_suspend: 1;	/* 1 during suspend/resume */
+
+	struct snd_4dwave synth;	/* synth specific variables */
+
+	spinlock_t event_lock;
+	spinlock_t voice_alloc;
+
+	struct snd_dma_device dma_dev;
+
+	struct pci_dev *pci;
+	struct snd_card *card;
+	struct snd_pcm *pcm;		/* ADC/DAC PCM */
+	struct snd_pcm *foldback;	/* Foldback PCM */
+	struct snd_pcm *spdif;	/* SPDIF PCM */
+	struct snd_rawmidi *rmidi;
+
+	struct snd_ac97_bus *ac97_bus;
+	struct snd_ac97 *ac97;
+	struct snd_ac97 *ac97_sec;
+
+	unsigned int musicvol_wavevol;
+	struct snd_trident_pcm_mixer pcm_mixer[32];
+	struct snd_kcontrol *ctl_vol;	/* front volume */
+	struct snd_kcontrol *ctl_pan;	/* pan */
+	struct snd_kcontrol *ctl_rvol;	/* rear volume */
+	struct snd_kcontrol *ctl_cvol;	/* center volume */
+
+	spinlock_t reg_lock;
+
+	struct gameport *gameport;
+};
+
+int snd_trident_create(struct snd_card *card,
+		       struct pci_dev *pci,
+		       int pcm_streams,
+		       int pcm_spdif_device,
+		       int max_wavetable_size);
+int snd_trident_create_gameport(struct snd_trident *trident);
+
+int snd_trident_pcm(struct snd_trident *trident, int device);
+int snd_trident_foldback_pcm(struct snd_trident *trident, int device);
+int snd_trident_spdif_pcm(struct snd_trident *trident, int device);
+int snd_trident_attach_synthesizer(struct snd_trident * trident);
+struct snd_trident_voice *snd_trident_alloc_voice(struct snd_trident * trident, int type,
+					     int client, int port);
+void snd_trident_free_voice(struct snd_trident * trident, struct snd_trident_voice *voice);
+void snd_trident_start_voice(struct snd_trident * trident, unsigned int voice);
+void snd_trident_stop_voice(struct snd_trident * trident, unsigned int voice);
+void snd_trident_write_voice_regs(struct snd_trident * trident, struct snd_trident_voice *voice);
+extern const struct dev_pm_ops snd_trident_pm;
+
+/* TLB memory allocation */
+struct snd_util_memblk *snd_trident_alloc_pages(struct snd_trident *trident,
+						struct snd_pcm_substream *substream);
+int snd_trident_free_pages(struct snd_trident *trident, struct snd_util_memblk *blk);
+struct snd_util_memblk *snd_trident_synth_alloc(struct snd_trident *trident, unsigned int size);
+int snd_trident_synth_free(struct snd_trident *trident, struct snd_util_memblk *blk);
+int snd_trident_synth_copy_from_user(struct snd_trident *trident, struct snd_util_memblk *blk,
+				     int offset, const char __user *data, int size);
+
+#endif /* __SOUND_TRIDENT_H */