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, 467 insertions, 0 deletions

diff --git a/sound/pci/ac97/ac97_proc.c b/sound/pci/ac97/ac97_proc.c
new file mode 100644
index 000000000..5426f7bc9
--- /dev/null
+++ b/sound/pci/ac97/ac97_proc.c
@@ -0,0 +1,467 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ *  Copyright (c) by Jaroslav Kysela <perex@perex.cz>
+ *  Universal interface for Audio Codec '97
+ *
+ *  For more details look to AC '97 component specification revision 2.2
+ *  by Intel Corporation (http://developer.intel.com).
+ */
+
+#include <linux/mutex.h>
+
+#include <sound/core.h>
+#include <sound/ac97_codec.h>
+#include <sound/asoundef.h>
+#include "ac97_local.h"
+#include "ac97_id.h"
+
+/*
+ * proc interface
+ */
+
+static void snd_ac97_proc_read_functions(struct snd_ac97 *ac97, struct snd_info_buffer *buffer)
+{
+	int header = 0, function;
+	unsigned short info, sense_info;
+	static const char *function_names[12] = {
+		"Master Out", "AUX Out", "Center/LFE Out", "SPDIF Out",
+		"Phone In", "Mic 1", "Mic 2", "Line In", "CD In", "Video In",
+		"Aux In", "Mono Out"
+	};
+	static const char *locations[8] = {
+		"Rear I/O Panel", "Front Panel", "Motherboard", "Dock/External",
+		"reserved", "reserved", "reserved", "NC/unused"
+	};
+
+	for (function = 0; function < 12; ++function) {
+		snd_ac97_write(ac97, AC97_FUNC_SELECT, function << 1);
+		info = snd_ac97_read(ac97, AC97_FUNC_INFO);
+		if (!(info & 0x0001))
+			continue;
+		if (!header) {
+			snd_iprintf(buffer, "\n                    Gain     Inverted  Buffer delay  Location\n");
+			header = 1;
+		}
+		sense_info = snd_ac97_read(ac97, AC97_SENSE_INFO);
+		snd_iprintf(buffer, "%-17s: %3d.%d dBV    %c      %2d/fs         %s\n",
+			    function_names[function],
+			    (info & 0x8000 ? -1 : 1) * ((info & 0x7000) >> 12) * 3 / 2,
+			    ((info & 0x0800) >> 11) * 5,
+			    info & 0x0400 ? 'X' : '-',
+			    (info & 0x03e0) >> 5,
+			    locations[sense_info >> 13]);
+	}
+}
+
+static const char *snd_ac97_stereo_enhancements[] =
+{
+  /*   0 */ "No 3D Stereo Enhancement",
+  /*   1 */ "Analog Devices Phat Stereo",
+  /*   2 */ "Creative Stereo Enhancement",
+  /*   3 */ "National Semi 3D Stereo Enhancement",
+  /*   4 */ "YAMAHA Ymersion",
+  /*   5 */ "BBE 3D Stereo Enhancement",
+  /*   6 */ "Crystal Semi 3D Stereo Enhancement",
+  /*   7 */ "Qsound QXpander",
+  /*   8 */ "Spatializer 3D Stereo Enhancement",
+  /*   9 */ "SRS 3D Stereo Enhancement",
+  /*  10 */ "Platform Tech 3D Stereo Enhancement",
+  /*  11 */ "AKM 3D Audio",
+  /*  12 */ "Aureal Stereo Enhancement",
+  /*  13 */ "Aztech 3D Enhancement",
+  /*  14 */ "Binaura 3D Audio Enhancement",
+  /*  15 */ "ESS Technology Stereo Enhancement",
+  /*  16 */ "Harman International VMAx",
+  /*  17 */ "Nvidea/IC Ensemble/KS Waves 3D Stereo Enhancement",
+  /*  18 */ "Philips Incredible Sound",
+  /*  19 */ "Texas Instruments 3D Stereo Enhancement",
+  /*  20 */ "VLSI Technology 3D Stereo Enhancement",
+  /*  21 */ "TriTech 3D Stereo Enhancement",
+  /*  22 */ "Realtek 3D Stereo Enhancement",
+  /*  23 */ "Samsung 3D Stereo Enhancement",
+  /*  24 */ "Wolfson Microelectronics 3D Enhancement",
+  /*  25 */ "Delta Integration 3D Enhancement",
+  /*  26 */ "SigmaTel 3D Enhancement",
+  /*  27 */ "IC Ensemble/KS Waves",
+  /*  28 */ "Rockwell 3D Stereo Enhancement",
+  /*  29 */ "Reserved 29",
+  /*  30 */ "Reserved 30",
+  /*  31 */ "Reserved 31"
+};
+
+static void snd_ac97_proc_read_main(struct snd_ac97 *ac97, struct snd_info_buffer *buffer, int subidx)
+{
+	char name[64];
+	unsigned short val, tmp, ext, mext;
+	static const char *spdif_slots[4] = { " SPDIF=3/4", " SPDIF=7/8", " SPDIF=6/9", " SPDIF=10/11" };
+	static const char *spdif_rates[4] = { " Rate=44.1kHz", " Rate=res", " Rate=48kHz", " Rate=32kHz" };
+	static const char *spdif_rates_cs4205[4] = { " Rate=48kHz", " Rate=44.1kHz", " Rate=res", " Rate=res" };
+	static const char *double_rate_slots[4] = { "10/11", "7/8", "reserved", "reserved" };
+
+	snd_ac97_get_name(NULL, ac97->id, name, 0);
+	snd_iprintf(buffer, "%d-%d/%d: %s\n\n", ac97->addr, ac97->num, subidx, name);
+
+	if ((ac97->scaps & AC97_SCAP_AUDIO) == 0)
+		goto __modem;
+
+        snd_iprintf(buffer, "PCI Subsys Vendor: 0x%04x\n",
+	            ac97->subsystem_vendor);
+        snd_iprintf(buffer, "PCI Subsys Device: 0x%04x\n\n",
+                    ac97->subsystem_device);
+
+	snd_iprintf(buffer, "Flags: %x\n", ac97->flags);
+
+	if ((ac97->ext_id & AC97_EI_REV_MASK) >= AC97_EI_REV_23) {
+		val = snd_ac97_read(ac97, AC97_INT_PAGING);
+		snd_ac97_update_bits(ac97, AC97_INT_PAGING,
+				     AC97_PAGE_MASK, AC97_PAGE_1);
+		tmp = snd_ac97_read(ac97, AC97_CODEC_CLASS_REV);
+		snd_iprintf(buffer, "Revision         : 0x%02x\n", tmp & 0xff);
+		snd_iprintf(buffer, "Compat. Class    : 0x%02x\n", (tmp >> 8) & 0x1f);
+		snd_iprintf(buffer, "Subsys. Vendor ID: 0x%04x\n",
+			    snd_ac97_read(ac97, AC97_PCI_SVID));
+		snd_iprintf(buffer, "Subsys. ID       : 0x%04x\n\n",
+			    snd_ac97_read(ac97, AC97_PCI_SID));
+		snd_ac97_update_bits(ac97, AC97_INT_PAGING,
+				     AC97_PAGE_MASK, val & AC97_PAGE_MASK);
+	}
+
+	// val = snd_ac97_read(ac97, AC97_RESET);
+	val = ac97->caps;
+	snd_iprintf(buffer, "Capabilities     :%s%s%s%s%s%s\n",
+	    	    val & AC97_BC_DEDICATED_MIC ? " -dedicated MIC PCM IN channel-" : "",
+		    val & AC97_BC_RESERVED1 ? " -reserved1-" : "",
+		    val & AC97_BC_BASS_TREBLE ? " -bass & treble-" : "",
+		    val & AC97_BC_SIM_STEREO ? " -simulated stereo-" : "",
+		    val & AC97_BC_HEADPHONE ? " -headphone out-" : "",
+		    val & AC97_BC_LOUDNESS ? " -loudness-" : "");
+	tmp = ac97->caps & AC97_BC_DAC_MASK;
+	snd_iprintf(buffer, "DAC resolution   : %s%s%s%s\n",
+		    tmp == AC97_BC_16BIT_DAC ? "16-bit" : "",
+		    tmp == AC97_BC_18BIT_DAC ? "18-bit" : "",
+		    tmp == AC97_BC_20BIT_DAC ? "20-bit" : "",
+		    tmp == AC97_BC_DAC_MASK ? "???" : "");
+	tmp = ac97->caps & AC97_BC_ADC_MASK;
+	snd_iprintf(buffer, "ADC resolution   : %s%s%s%s\n",
+		    tmp == AC97_BC_16BIT_ADC ? "16-bit" : "",
+		    tmp == AC97_BC_18BIT_ADC ? "18-bit" : "",
+		    tmp == AC97_BC_20BIT_ADC ? "20-bit" : "",
+		    tmp == AC97_BC_ADC_MASK ? "???" : "");
+	snd_iprintf(buffer, "3D enhancement   : %s\n",
+		snd_ac97_stereo_enhancements[(val >> 10) & 0x1f]);
+	snd_iprintf(buffer, "\nCurrent setup\n");
+	val = snd_ac97_read(ac97, AC97_MIC);
+	snd_iprintf(buffer, "Mic gain         : %s [%s]\n", val & 0x0040 ? "+20dB" : "+0dB", ac97->regs[AC97_MIC] & 0x0040 ? "+20dB" : "+0dB");
+	val = snd_ac97_read(ac97, AC97_GENERAL_PURPOSE);
+	snd_iprintf(buffer, "POP path         : %s 3D\n"
+		    "Sim. stereo      : %s\n"
+		    "3D enhancement   : %s\n"
+		    "Loudness         : %s\n"
+		    "Mono output      : %s\n"
+		    "Mic select       : %s\n"
+		    "ADC/DAC loopback : %s\n",
+		    val & 0x8000 ? "post" : "pre",
+		    val & 0x4000 ? "on" : "off",
+		    val & 0x2000 ? "on" : "off",
+		    val & 0x1000 ? "on" : "off",
+		    val & 0x0200 ? "Mic" : "MIX",
+		    val & 0x0100 ? "Mic2" : "Mic1",
+		    val & 0x0080 ? "on" : "off");
+	if (ac97->ext_id & AC97_EI_DRA)
+		snd_iprintf(buffer, "Double rate slots: %s\n",
+			    double_rate_slots[(val >> 10) & 3]);
+
+	ext = snd_ac97_read(ac97, AC97_EXTENDED_ID);
+	if (ext == 0)
+		goto __modem;
+		
+	snd_iprintf(buffer, "Extended ID      : codec=%i rev=%i%s%s%s%s DSA=%i%s%s%s%s\n",
+			(ext & AC97_EI_ADDR_MASK) >> AC97_EI_ADDR_SHIFT,
+			(ext & AC97_EI_REV_MASK) >> AC97_EI_REV_SHIFT,
+			ext & AC97_EI_AMAP ? " AMAP" : "",
+			ext & AC97_EI_LDAC ? " LDAC" : "",
+			ext & AC97_EI_SDAC ? " SDAC" : "",
+			ext & AC97_EI_CDAC ? " CDAC" : "",
+			(ext & AC97_EI_DACS_SLOT_MASK) >> AC97_EI_DACS_SLOT_SHIFT,
+			ext & AC97_EI_VRM ? " VRM" : "",
+			ext & AC97_EI_SPDIF ? " SPDIF" : "",
+			ext & AC97_EI_DRA ? " DRA" : "",
+			ext & AC97_EI_VRA ? " VRA" : "");
+	val = snd_ac97_read(ac97, AC97_EXTENDED_STATUS);
+	snd_iprintf(buffer, "Extended status  :%s%s%s%s%s%s%s%s%s%s%s%s%s%s\n",
+			val & AC97_EA_PRL ? " PRL" : "",
+			val & AC97_EA_PRK ? " PRK" : "",
+			val & AC97_EA_PRJ ? " PRJ" : "",
+			val & AC97_EA_PRI ? " PRI" : "",
+			val & AC97_EA_SPCV ? " SPCV" : "",
+			val & AC97_EA_MDAC ? " MADC" : "",
+			val & AC97_EA_LDAC ? " LDAC" : "",
+			val & AC97_EA_SDAC ? " SDAC" : "",
+			val & AC97_EA_CDAC ? " CDAC" : "",
+			ext & AC97_EI_SPDIF ? spdif_slots[(val & AC97_EA_SPSA_SLOT_MASK) >> AC97_EA_SPSA_SLOT_SHIFT] : "",
+			val & AC97_EA_VRM ? " VRM" : "",
+			val & AC97_EA_SPDIF ? " SPDIF" : "",
+			val & AC97_EA_DRA ? " DRA" : "",
+			val & AC97_EA_VRA ? " VRA" : "");
+	if (ext & AC97_EI_VRA) {	/* VRA */
+		val = snd_ac97_read(ac97, AC97_PCM_FRONT_DAC_RATE);
+		snd_iprintf(buffer, "PCM front DAC    : %iHz\n", val);
+		if (ext & AC97_EI_SDAC) {
+			val = snd_ac97_read(ac97, AC97_PCM_SURR_DAC_RATE);
+			snd_iprintf(buffer, "PCM Surr DAC     : %iHz\n", val);
+		}
+		if (ext & AC97_EI_LDAC) {
+			val = snd_ac97_read(ac97, AC97_PCM_LFE_DAC_RATE);
+			snd_iprintf(buffer, "PCM LFE DAC      : %iHz\n", val);
+		}
+		val = snd_ac97_read(ac97, AC97_PCM_LR_ADC_RATE);
+		snd_iprintf(buffer, "PCM ADC          : %iHz\n", val);
+	}
+	if (ext & AC97_EI_VRM) {
+		val = snd_ac97_read(ac97, AC97_PCM_MIC_ADC_RATE);
+		snd_iprintf(buffer, "PCM MIC ADC      : %iHz\n", val);
+	}
+	if ((ext & AC97_EI_SPDIF) || (ac97->flags & AC97_CS_SPDIF) ||
+	    (ac97->id == AC97_ID_YMF743)) {
+	        if (ac97->flags & AC97_CS_SPDIF)
+			val = snd_ac97_read(ac97, AC97_CSR_SPDIF);
+		else if (ac97->id == AC97_ID_YMF743) {
+			val = snd_ac97_read(ac97, AC97_YMF7X3_DIT_CTRL);
+			val = 0x2000 | (val & 0xff00) >> 4 | (val & 0x38) >> 2;
+		} else
+			val = snd_ac97_read(ac97, AC97_SPDIF);
+
+		snd_iprintf(buffer, "SPDIF Control    :%s%s%s%s Category=0x%x Generation=%i%s%s%s\n",
+			val & AC97_SC_PRO ? " PRO" : " Consumer",
+			val & AC97_SC_NAUDIO ? " Non-audio" : " PCM",
+			val & AC97_SC_COPY ? "" : " Copyright",
+			val & AC97_SC_PRE ? " Preemph50/15" : "",
+			(val & AC97_SC_CC_MASK) >> AC97_SC_CC_SHIFT,
+			(val & AC97_SC_L) >> 11,
+			(ac97->flags & AC97_CS_SPDIF) ?
+			    spdif_rates_cs4205[(val & AC97_SC_SPSR_MASK) >> AC97_SC_SPSR_SHIFT] :
+			    spdif_rates[(val & AC97_SC_SPSR_MASK) >> AC97_SC_SPSR_SHIFT],
+			(ac97->flags & AC97_CS_SPDIF) ?
+			    (val & AC97_SC_DRS ? " Validity" : "") :
+			    (val & AC97_SC_DRS ? " DRS" : ""),
+			(ac97->flags & AC97_CS_SPDIF) ?
+			    (val & AC97_SC_V ? " Enabled" : "") :
+			    (val & AC97_SC_V ? " Validity" : ""));
+		/* ALC650 specific*/
+		if ((ac97->id & 0xfffffff0) == 0x414c4720 &&
+		    (snd_ac97_read(ac97, AC97_ALC650_CLOCK) & 0x01)) {
+			val = snd_ac97_read(ac97, AC97_ALC650_SPDIF_INPUT_STATUS2);
+			if (val & AC97_ALC650_CLOCK_LOCK) {
+				val = snd_ac97_read(ac97, AC97_ALC650_SPDIF_INPUT_STATUS1);
+				snd_iprintf(buffer, "SPDIF In Status  :%s%s%s%s Category=0x%x Generation=%i",
+					    val & AC97_ALC650_PRO ? " PRO" : " Consumer",
+					    val & AC97_ALC650_NAUDIO ? " Non-audio" : " PCM",
+					    val & AC97_ALC650_COPY ? "" : " Copyright",
+					    val & AC97_ALC650_PRE ? " Preemph50/15" : "",
+					    (val & AC97_ALC650_CC_MASK) >> AC97_ALC650_CC_SHIFT,
+					    (val & AC97_ALC650_L) >> 15);
+				val = snd_ac97_read(ac97, AC97_ALC650_SPDIF_INPUT_STATUS2);
+				snd_iprintf(buffer, "%s Accuracy=%i%s%s\n",
+					    spdif_rates[(val & AC97_ALC650_SPSR_MASK) >> AC97_ALC650_SPSR_SHIFT],
+					    (val & AC97_ALC650_CLOCK_ACCURACY) >> AC97_ALC650_CLOCK_SHIFT,
+					    (val & AC97_ALC650_CLOCK_LOCK ? " Locked" : " Unlocked"),
+					    (val & AC97_ALC650_V ? " Validity?" : ""));
+			} else {
+				snd_iprintf(buffer, "SPDIF In Status  : Not Locked\n");
+			}
+		}
+	}
+	if ((ac97->ext_id & AC97_EI_REV_MASK) >= AC97_EI_REV_23) {
+		val = snd_ac97_read(ac97, AC97_INT_PAGING);
+		snd_ac97_update_bits(ac97, AC97_INT_PAGING,
+				     AC97_PAGE_MASK, AC97_PAGE_1);
+		snd_ac97_proc_read_functions(ac97, buffer);
+		snd_ac97_update_bits(ac97, AC97_INT_PAGING,
+				     AC97_PAGE_MASK, val & AC97_PAGE_MASK);
+	}
+
+
+      __modem:
+	mext = snd_ac97_read(ac97, AC97_EXTENDED_MID);
+	if (mext == 0)
+		return;
+	
+	snd_iprintf(buffer, "Extended modem ID: codec=%i%s%s%s%s%s\n",
+			(mext & AC97_MEI_ADDR_MASK) >> AC97_MEI_ADDR_SHIFT,
+			mext & AC97_MEI_CID2 ? " CID2" : "",
+			mext & AC97_MEI_CID1 ? " CID1" : "",
+			mext & AC97_MEI_HANDSET ? " HSET" : "",
+			mext & AC97_MEI_LINE2 ? " LIN2" : "",
+			mext & AC97_MEI_LINE1 ? " LIN1" : "");
+	val = snd_ac97_read(ac97, AC97_EXTENDED_MSTATUS);
+	snd_iprintf(buffer, "Modem status     :%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s\n",
+			val & AC97_MEA_GPIO ? " GPIO" : "",
+			val & AC97_MEA_MREF ? " MREF" : "",
+			val & AC97_MEA_ADC1 ? " ADC1" : "",
+			val & AC97_MEA_DAC1 ? " DAC1" : "",
+			val & AC97_MEA_ADC2 ? " ADC2" : "",
+			val & AC97_MEA_DAC2 ? " DAC2" : "",
+			val & AC97_MEA_HADC ? " HADC" : "",
+			val & AC97_MEA_HDAC ? " HDAC" : "",
+			val & AC97_MEA_PRA ? " PRA(GPIO)" : "",
+			val & AC97_MEA_PRB ? " PRB(res)" : "",
+			val & AC97_MEA_PRC ? " PRC(ADC1)" : "",
+			val & AC97_MEA_PRD ? " PRD(DAC1)" : "",
+			val & AC97_MEA_PRE ? " PRE(ADC2)" : "",
+			val & AC97_MEA_PRF ? " PRF(DAC2)" : "",
+			val & AC97_MEA_PRG ? " PRG(HADC)" : "",
+			val & AC97_MEA_PRH ? " PRH(HDAC)" : "");
+	if (mext & AC97_MEI_LINE1) {
+		val = snd_ac97_read(ac97, AC97_LINE1_RATE);
+		snd_iprintf(buffer, "Line1 rate       : %iHz\n", val);
+	}
+	if (mext & AC97_MEI_LINE2) {
+		val = snd_ac97_read(ac97, AC97_LINE2_RATE);
+		snd_iprintf(buffer, "Line2 rate       : %iHz\n", val);
+	}
+	if (mext & AC97_MEI_HANDSET) {
+		val = snd_ac97_read(ac97, AC97_HANDSET_RATE);
+		snd_iprintf(buffer, "Headset rate     : %iHz\n", val);
+	}
+}
+
+static void snd_ac97_proc_read(struct snd_info_entry *entry, struct snd_info_buffer *buffer)
+{
+	struct snd_ac97 *ac97 = entry->private_data;
+	
+	mutex_lock(&ac97->page_mutex);
+	if ((ac97->id & 0xffffff40) == AC97_ID_AD1881) {	// Analog Devices AD1881/85/86
+		int idx;
+		for (idx = 0; idx < 3; idx++)
+			if (ac97->spec.ad18xx.id[idx]) {
+				/* select single codec */
+				snd_ac97_update_bits(ac97, AC97_AD_SERIAL_CFG, 0x7000,
+						     ac97->spec.ad18xx.unchained[idx] | ac97->spec.ad18xx.chained[idx]);
+				snd_ac97_proc_read_main(ac97, buffer, idx);
+				snd_iprintf(buffer, "\n\n");
+			}
+		/* select all codecs */
+		snd_ac97_update_bits(ac97, AC97_AD_SERIAL_CFG, 0x7000, 0x7000);
+		
+		snd_iprintf(buffer, "\nAD18XX configuration\n");
+		snd_iprintf(buffer, "Unchained        : 0x%04x,0x%04x,0x%04x\n",
+			ac97->spec.ad18xx.unchained[0],
+			ac97->spec.ad18xx.unchained[1],
+			ac97->spec.ad18xx.unchained[2]);
+		snd_iprintf(buffer, "Chained          : 0x%04x,0x%04x,0x%04x\n",
+			ac97->spec.ad18xx.chained[0],
+			ac97->spec.ad18xx.chained[1],
+			ac97->spec.ad18xx.chained[2]);
+	} else {
+		snd_ac97_proc_read_main(ac97, buffer, 0);
+	}
+	mutex_unlock(&ac97->page_mutex);
+}
+
+#ifdef CONFIG_SND_DEBUG
+/* direct register write for debugging */
+static void snd_ac97_proc_regs_write(struct snd_info_entry *entry, struct snd_info_buffer *buffer)
+{
+	struct snd_ac97 *ac97 = entry->private_data;
+	char line[64];
+	unsigned int reg, val;
+	mutex_lock(&ac97->page_mutex);
+	while (!snd_info_get_line(buffer, line, sizeof(line))) {
+		if (sscanf(line, "%x %x", &reg, &val) != 2)
+			continue;
+		/* register must be even */
+		if (reg < 0x80 && (reg & 1) == 0 && val <= 0xffff)
+			snd_ac97_write_cache(ac97, reg, val);
+	}
+	mutex_unlock(&ac97->page_mutex);
+}
+#endif
+
+static void snd_ac97_proc_regs_read_main(struct snd_ac97 *ac97, struct snd_info_buffer *buffer, int subidx)
+{
+	int reg, val;
+
+	for (reg = 0; reg < 0x80; reg += 2) {
+		val = snd_ac97_read(ac97, reg);
+		snd_iprintf(buffer, "%i:%02x = %04x\n", subidx, reg, val);
+	}
+}
+
+static void snd_ac97_proc_regs_read(struct snd_info_entry *entry, 
+				    struct snd_info_buffer *buffer)
+{
+	struct snd_ac97 *ac97 = entry->private_data;
+
+	mutex_lock(&ac97->page_mutex);
+	if ((ac97->id & 0xffffff40) == AC97_ID_AD1881) {	// Analog Devices AD1881/85/86
+
+		int idx;
+		for (idx = 0; idx < 3; idx++)
+			if (ac97->spec.ad18xx.id[idx]) {
+				/* select single codec */
+				snd_ac97_update_bits(ac97, AC97_AD_SERIAL_CFG, 0x7000,
+						     ac97->spec.ad18xx.unchained[idx] | ac97->spec.ad18xx.chained[idx]);
+				snd_ac97_proc_regs_read_main(ac97, buffer, idx);
+			}
+		/* select all codecs */
+		snd_ac97_update_bits(ac97, AC97_AD_SERIAL_CFG, 0x7000, 0x7000);
+	} else {
+		snd_ac97_proc_regs_read_main(ac97, buffer, 0);
+	}	
+	mutex_unlock(&ac97->page_mutex);
+}
+
+void snd_ac97_proc_init(struct snd_ac97 * ac97)
+{
+	struct snd_info_entry *entry;
+	char name[32];
+	const char *prefix;
+
+	if (ac97->bus->proc == NULL)
+		return;
+	prefix = ac97_is_audio(ac97) ? "ac97" : "mc97";
+	sprintf(name, "%s#%d-%d", prefix, ac97->addr, ac97->num);
+	entry = snd_info_create_card_entry(ac97->bus->card, name,
+					   ac97->bus->proc);
+	if (entry)
+		snd_info_set_text_ops(entry, ac97, snd_ac97_proc_read);
+	ac97->proc = entry;
+	sprintf(name, "%s#%d-%d+regs", prefix, ac97->addr, ac97->num);
+	entry = snd_info_create_card_entry(ac97->bus->card, name,
+					   ac97->bus->proc);
+	if (entry) {
+		snd_info_set_text_ops(entry, ac97, snd_ac97_proc_regs_read);
+#ifdef CONFIG_SND_DEBUG
+		entry->mode |= 0200;
+		entry->c.text.write = snd_ac97_proc_regs_write;
+#endif
+	}
+	ac97->proc_regs = entry;
+}
+
+void snd_ac97_proc_done(struct snd_ac97 * ac97)
+{
+	snd_info_free_entry(ac97->proc_regs);
+	ac97->proc_regs = NULL;
+	snd_info_free_entry(ac97->proc);
+	ac97->proc = NULL;
+}
+
+void snd_ac97_bus_proc_init(struct snd_ac97_bus * bus)
+{
+	struct snd_info_entry *entry;
+	char name[32];
+
+	sprintf(name, "codec97#%d", bus->num);
+	entry = snd_info_create_card_entry(bus->card, name,
+					   bus->card->proc_root);
+	if (entry)
+		entry->mode = S_IFDIR | 0555;
+	bus->proc = entry;
+}
+
+void snd_ac97_bus_proc_done(struct snd_ac97_bus * bus)
+{
+	snd_info_free_entry(bus->proc);
+	bus->proc = NULL;
+}