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, 533 insertions, 0 deletions

diff --git a/sound/i2c/other/ak4117.c b/sound/i2c/other/ak4117.c
new file mode 100644
index 000000000..640501bb3
--- /dev/null
+++ b/sound/i2c/other/ak4117.c
@@ -0,0 +1,533 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ *  Routines for control of the AK4117 via 4-wire serial interface
+ *  IEC958 (S/PDIF) receiver by Asahi Kasei
+ *  Copyright (c) by Jaroslav Kysela <perex@perex.cz>
+ */
+
+#include <linux/slab.h>
+#include <linux/delay.h>
+#include <linux/module.h>
+#include <sound/core.h>
+#include <sound/control.h>
+#include <sound/pcm.h>
+#include <sound/ak4117.h>
+#include <sound/asoundef.h>
+
+MODULE_AUTHOR("Jaroslav Kysela <perex@perex.cz>");
+MODULE_DESCRIPTION("AK4117 IEC958 (S/PDIF) receiver by Asahi Kasei");
+MODULE_LICENSE("GPL");
+
+#define AK4117_ADDR			0x00 /* fixed address */
+
+static void snd_ak4117_timer(struct timer_list *t);
+
+static void reg_write(struct ak4117 *ak4117, unsigned char reg, unsigned char val)
+{
+	ak4117->write(ak4117->private_data, reg, val);
+	if (reg < sizeof(ak4117->regmap))
+		ak4117->regmap[reg] = val;
+}
+
+static inline unsigned char reg_read(struct ak4117 *ak4117, unsigned char reg)
+{
+	return ak4117->read(ak4117->private_data, reg);
+}
+
+#if 0
+static void reg_dump(struct ak4117 *ak4117)
+{
+	int i;
+
+	printk(KERN_DEBUG "AK4117 REG DUMP:\n");
+	for (i = 0; i < 0x1b; i++)
+		printk(KERN_DEBUG "reg[%02x] = %02x (%02x)\n", i, reg_read(ak4117, i), i < sizeof(ak4117->regmap) ? ak4117->regmap[i] : 0);
+}
+#endif
+
+static void snd_ak4117_free(struct ak4117 *chip)
+{
+	timer_shutdown_sync(&chip->timer);
+	kfree(chip);
+}
+
+static int snd_ak4117_dev_free(struct snd_device *device)
+{
+	struct ak4117 *chip = device->device_data;
+	snd_ak4117_free(chip);
+	return 0;
+}
+
+int snd_ak4117_create(struct snd_card *card, ak4117_read_t *read, ak4117_write_t *write,
+		      const unsigned char pgm[5], void *private_data, struct ak4117 **r_ak4117)
+{
+	struct ak4117 *chip;
+	int err = 0;
+	unsigned char reg;
+	static const struct snd_device_ops ops = {
+		.dev_free =     snd_ak4117_dev_free,
+	};
+
+	chip = kzalloc(sizeof(*chip), GFP_KERNEL);
+	if (chip == NULL)
+		return -ENOMEM;
+	spin_lock_init(&chip->lock);
+	chip->card = card;
+	chip->read = read;
+	chip->write = write;
+	chip->private_data = private_data;
+	timer_setup(&chip->timer, snd_ak4117_timer, 0);
+
+	for (reg = 0; reg < 5; reg++)
+		chip->regmap[reg] = pgm[reg];
+	snd_ak4117_reinit(chip);
+
+	chip->rcs0 = reg_read(chip, AK4117_REG_RCS0) & ~(AK4117_QINT | AK4117_CINT | AK4117_STC);
+	chip->rcs1 = reg_read(chip, AK4117_REG_RCS1);
+	chip->rcs2 = reg_read(chip, AK4117_REG_RCS2);
+
+	err = snd_device_new(card, SNDRV_DEV_CODEC, chip, &ops);
+	if (err < 0)
+		goto __fail;
+
+	if (r_ak4117)
+		*r_ak4117 = chip;
+	return 0;
+
+      __fail:
+	snd_ak4117_free(chip);
+	return err;
+}
+
+void snd_ak4117_reg_write(struct ak4117 *chip, unsigned char reg, unsigned char mask, unsigned char val)
+{
+	if (reg >= 5)
+		return;
+	reg_write(chip, reg, (chip->regmap[reg] & ~mask) | val);
+}
+
+void snd_ak4117_reinit(struct ak4117 *chip)
+{
+	unsigned char old = chip->regmap[AK4117_REG_PWRDN], reg;
+
+	del_timer(&chip->timer);
+	chip->init = 1;
+	/* bring the chip to reset state and powerdown state */
+	reg_write(chip, AK4117_REG_PWRDN, 0);
+	udelay(200);
+	/* release reset, but leave powerdown */
+	reg_write(chip, AK4117_REG_PWRDN, (old | AK4117_RST) & ~AK4117_PWN);
+	udelay(200);
+	for (reg = 1; reg < 5; reg++)
+		reg_write(chip, reg, chip->regmap[reg]);
+	/* release powerdown, everything is initialized now */
+	reg_write(chip, AK4117_REG_PWRDN, old | AK4117_RST | AK4117_PWN);
+	chip->init = 0;
+	mod_timer(&chip->timer, 1 + jiffies);
+}
+
+static unsigned int external_rate(unsigned char rcs1)
+{
+	switch (rcs1 & (AK4117_FS0|AK4117_FS1|AK4117_FS2|AK4117_FS3)) {
+	case AK4117_FS_32000HZ: return 32000;
+	case AK4117_FS_44100HZ: return 44100;
+	case AK4117_FS_48000HZ: return 48000;
+	case AK4117_FS_88200HZ: return 88200;
+	case AK4117_FS_96000HZ: return 96000;
+	case AK4117_FS_176400HZ: return 176400;
+	case AK4117_FS_192000HZ: return 192000;
+	default:		return 0;
+	}
+}
+
+static int snd_ak4117_in_error_info(struct snd_kcontrol *kcontrol,
+				    struct snd_ctl_elem_info *uinfo)
+{
+	uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
+	uinfo->count = 1;
+	uinfo->value.integer.min = 0;
+	uinfo->value.integer.max = LONG_MAX;
+	return 0;
+}
+
+static int snd_ak4117_in_error_get(struct snd_kcontrol *kcontrol,
+				   struct snd_ctl_elem_value *ucontrol)
+{
+	struct ak4117 *chip = snd_kcontrol_chip(kcontrol);
+
+	spin_lock_irq(&chip->lock);
+	ucontrol->value.integer.value[0] =
+		       chip->errors[kcontrol->private_value];
+	chip->errors[kcontrol->private_value] = 0;
+	spin_unlock_irq(&chip->lock);
+	return 0;
+}
+
+#define snd_ak4117_in_bit_info		snd_ctl_boolean_mono_info
+
+static int snd_ak4117_in_bit_get(struct snd_kcontrol *kcontrol,
+				 struct snd_ctl_elem_value *ucontrol)
+{
+	struct ak4117 *chip = snd_kcontrol_chip(kcontrol);
+	unsigned char reg = kcontrol->private_value & 0xff;
+	unsigned char bit = (kcontrol->private_value >> 8) & 0xff;
+	unsigned char inv = (kcontrol->private_value >> 31) & 1;
+
+	ucontrol->value.integer.value[0] = ((reg_read(chip, reg) & (1 << bit)) ? 1 : 0) ^ inv;
+	return 0;
+}
+
+static int snd_ak4117_rx_info(struct snd_kcontrol *kcontrol,
+			      struct snd_ctl_elem_info *uinfo)
+{
+	uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
+	uinfo->count = 1;
+	uinfo->value.integer.min = 0;
+	uinfo->value.integer.max = 1;
+	return 0;
+}
+
+static int snd_ak4117_rx_get(struct snd_kcontrol *kcontrol,
+			     struct snd_ctl_elem_value *ucontrol)
+{
+	struct ak4117 *chip = snd_kcontrol_chip(kcontrol);
+
+	ucontrol->value.integer.value[0] = (chip->regmap[AK4117_REG_IO] & AK4117_IPS) ? 1 : 0;
+	return 0;
+}
+
+static int snd_ak4117_rx_put(struct snd_kcontrol *kcontrol,
+			     struct snd_ctl_elem_value *ucontrol)
+{
+	struct ak4117 *chip = snd_kcontrol_chip(kcontrol);
+	int change;
+	u8 old_val;
+	
+	spin_lock_irq(&chip->lock);
+	old_val = chip->regmap[AK4117_REG_IO];
+	change = !!ucontrol->value.integer.value[0] != ((old_val & AK4117_IPS) ? 1 : 0);
+	if (change)
+		reg_write(chip, AK4117_REG_IO, (old_val & ~AK4117_IPS) | (ucontrol->value.integer.value[0] ? AK4117_IPS : 0));
+	spin_unlock_irq(&chip->lock);
+	return change;
+}
+
+static int snd_ak4117_rate_info(struct snd_kcontrol *kcontrol,
+				struct snd_ctl_elem_info *uinfo)
+{
+	uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
+	uinfo->count = 1;
+	uinfo->value.integer.min = 0;
+	uinfo->value.integer.max = 192000;
+	return 0;
+}
+
+static int snd_ak4117_rate_get(struct snd_kcontrol *kcontrol,
+			       struct snd_ctl_elem_value *ucontrol)
+{
+	struct ak4117 *chip = snd_kcontrol_chip(kcontrol);
+
+	ucontrol->value.integer.value[0] = external_rate(reg_read(chip, AK4117_REG_RCS1));
+	return 0;
+}
+
+static int snd_ak4117_spdif_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
+{
+	uinfo->type = SNDRV_CTL_ELEM_TYPE_IEC958;
+	uinfo->count = 1;
+	return 0;
+}
+
+static int snd_ak4117_spdif_get(struct snd_kcontrol *kcontrol,
+				struct snd_ctl_elem_value *ucontrol)
+{
+	struct ak4117 *chip = snd_kcontrol_chip(kcontrol);
+	unsigned i;
+
+	for (i = 0; i < AK4117_REG_RXCSB_SIZE; i++)
+		ucontrol->value.iec958.status[i] = reg_read(chip, AK4117_REG_RXCSB0 + i);
+	return 0;
+}
+
+static int snd_ak4117_spdif_mask_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
+{
+	uinfo->type = SNDRV_CTL_ELEM_TYPE_IEC958;
+	uinfo->count = 1;
+	return 0;
+}
+
+static int snd_ak4117_spdif_mask_get(struct snd_kcontrol *kcontrol,
+				      struct snd_ctl_elem_value *ucontrol)
+{
+	memset(ucontrol->value.iec958.status, 0xff, AK4117_REG_RXCSB_SIZE);
+	return 0;
+}
+
+static int snd_ak4117_spdif_pinfo(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
+{
+	uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
+	uinfo->value.integer.min = 0;
+	uinfo->value.integer.max = 0xffff;
+	uinfo->count = 4;
+	return 0;
+}
+
+static int snd_ak4117_spdif_pget(struct snd_kcontrol *kcontrol,
+				 struct snd_ctl_elem_value *ucontrol)
+{
+	struct ak4117 *chip = snd_kcontrol_chip(kcontrol);
+	unsigned short tmp;
+
+	ucontrol->value.integer.value[0] = 0xf8f2;
+	ucontrol->value.integer.value[1] = 0x4e1f;
+	tmp = reg_read(chip, AK4117_REG_Pc0) | (reg_read(chip, AK4117_REG_Pc1) << 8);
+	ucontrol->value.integer.value[2] = tmp;
+	tmp = reg_read(chip, AK4117_REG_Pd0) | (reg_read(chip, AK4117_REG_Pd1) << 8);
+	ucontrol->value.integer.value[3] = tmp;
+	return 0;
+}
+
+static int snd_ak4117_spdif_qinfo(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
+{
+	uinfo->type = SNDRV_CTL_ELEM_TYPE_BYTES;
+	uinfo->count = AK4117_REG_QSUB_SIZE;
+	return 0;
+}
+
+static int snd_ak4117_spdif_qget(struct snd_kcontrol *kcontrol,
+				 struct snd_ctl_elem_value *ucontrol)
+{
+	struct ak4117 *chip = snd_kcontrol_chip(kcontrol);
+	unsigned i;
+
+	for (i = 0; i < AK4117_REG_QSUB_SIZE; i++)
+		ucontrol->value.bytes.data[i] = reg_read(chip, AK4117_REG_QSUB_ADDR + i);
+	return 0;
+}
+
+/* Don't forget to change AK4117_CONTROLS define!!! */
+static const struct snd_kcontrol_new snd_ak4117_iec958_controls[] = {
+{
+	.iface =	SNDRV_CTL_ELEM_IFACE_PCM,
+	.name =		"IEC958 Parity Errors",
+	.access =	SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE,
+	.info =		snd_ak4117_in_error_info,
+	.get =		snd_ak4117_in_error_get,
+	.private_value = AK4117_PARITY_ERRORS,
+},
+{
+	.iface =	SNDRV_CTL_ELEM_IFACE_PCM,
+	.name =		"IEC958 V-Bit Errors",
+	.access =	SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE,
+	.info =		snd_ak4117_in_error_info,
+	.get =		snd_ak4117_in_error_get,
+	.private_value = AK4117_V_BIT_ERRORS,
+},
+{
+	.iface =	SNDRV_CTL_ELEM_IFACE_PCM,
+	.name =		"IEC958 C-CRC Errors",
+	.access =	SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE,
+	.info =		snd_ak4117_in_error_info,
+	.get =		snd_ak4117_in_error_get,
+	.private_value = AK4117_CCRC_ERRORS,
+},
+{
+	.iface =	SNDRV_CTL_ELEM_IFACE_PCM,
+	.name =		"IEC958 Q-CRC Errors",
+	.access =	SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE,
+	.info =		snd_ak4117_in_error_info,
+	.get =		snd_ak4117_in_error_get,
+	.private_value = AK4117_QCRC_ERRORS,
+},
+{
+	.iface =	SNDRV_CTL_ELEM_IFACE_PCM,
+	.name =		"IEC958 External Rate",
+	.access =	SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE,
+	.info =		snd_ak4117_rate_info,
+	.get =		snd_ak4117_rate_get,
+},
+{
+	.iface =	SNDRV_CTL_ELEM_IFACE_PCM,
+	.name =		SNDRV_CTL_NAME_IEC958("",CAPTURE,MASK),
+	.access =	SNDRV_CTL_ELEM_ACCESS_READ,
+	.info =		snd_ak4117_spdif_mask_info,
+	.get =		snd_ak4117_spdif_mask_get,
+},
+{
+	.iface =	SNDRV_CTL_ELEM_IFACE_PCM,
+	.name =		SNDRV_CTL_NAME_IEC958("",CAPTURE,DEFAULT),
+	.access =	SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE,
+	.info =		snd_ak4117_spdif_info,
+	.get =		snd_ak4117_spdif_get,
+},
+{
+	.iface =	SNDRV_CTL_ELEM_IFACE_PCM,
+	.name =		"IEC958 Preamble Capture Default",
+	.access =	SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE,
+	.info =		snd_ak4117_spdif_pinfo,
+	.get =		snd_ak4117_spdif_pget,
+},
+{
+	.iface =	SNDRV_CTL_ELEM_IFACE_PCM,
+	.name =		"IEC958 Q-subcode Capture Default",
+	.access =	SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE,
+	.info =		snd_ak4117_spdif_qinfo,
+	.get =		snd_ak4117_spdif_qget,
+},
+{
+	.iface =	SNDRV_CTL_ELEM_IFACE_PCM,
+	.name =		"IEC958 Audio",
+	.access =	SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE,
+	.info =		snd_ak4117_in_bit_info,
+	.get =		snd_ak4117_in_bit_get,
+	.private_value = (1<<31) | (3<<8) | AK4117_REG_RCS0,
+},
+{
+	.iface =	SNDRV_CTL_ELEM_IFACE_PCM,
+	.name =		"IEC958 Non-PCM Bitstream",
+	.access =	SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE,
+	.info =		snd_ak4117_in_bit_info,
+	.get =		snd_ak4117_in_bit_get,
+	.private_value = (5<<8) | AK4117_REG_RCS1,
+},
+{
+	.iface =	SNDRV_CTL_ELEM_IFACE_PCM,
+	.name =		"IEC958 DTS Bitstream",
+	.access =	SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE,
+	.info =		snd_ak4117_in_bit_info,
+	.get =		snd_ak4117_in_bit_get,
+	.private_value = (6<<8) | AK4117_REG_RCS1,
+},
+{
+	.iface =	SNDRV_CTL_ELEM_IFACE_PCM,
+	.name =		"AK4117 Input Select",
+	.access =	SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_WRITE,
+	.info =		snd_ak4117_rx_info,
+	.get =		snd_ak4117_rx_get,
+	.put =		snd_ak4117_rx_put,
+}
+};
+
+int snd_ak4117_build(struct ak4117 *ak4117, struct snd_pcm_substream *cap_substream)
+{
+	struct snd_kcontrol *kctl;
+	unsigned int idx;
+	int err;
+
+	if (snd_BUG_ON(!cap_substream))
+		return -EINVAL;
+	ak4117->substream = cap_substream;
+	for (idx = 0; idx < AK4117_CONTROLS; idx++) {
+		kctl = snd_ctl_new1(&snd_ak4117_iec958_controls[idx], ak4117);
+		if (kctl == NULL)
+			return -ENOMEM;
+		kctl->id.device = cap_substream->pcm->device;
+		kctl->id.subdevice = cap_substream->number;
+		err = snd_ctl_add(ak4117->card, kctl);
+		if (err < 0)
+			return err;
+		ak4117->kctls[idx] = kctl;
+	}
+	return 0;
+}
+
+int snd_ak4117_external_rate(struct ak4117 *ak4117)
+{
+	unsigned char rcs1;
+
+	rcs1 = reg_read(ak4117, AK4117_REG_RCS1);
+	return external_rate(rcs1);
+}
+
+int snd_ak4117_check_rate_and_errors(struct ak4117 *ak4117, unsigned int flags)
+{
+	struct snd_pcm_runtime *runtime = ak4117->substream ? ak4117->substream->runtime : NULL;
+	unsigned long _flags;
+	int res = 0;
+	unsigned char rcs0, rcs1, rcs2;
+	unsigned char c0, c1;
+
+	rcs1 = reg_read(ak4117, AK4117_REG_RCS1);
+	if (flags & AK4117_CHECK_NO_STAT)
+		goto __rate;
+	rcs0 = reg_read(ak4117, AK4117_REG_RCS0);
+	rcs2 = reg_read(ak4117, AK4117_REG_RCS2);
+	// printk(KERN_DEBUG "AK IRQ: rcs0 = 0x%x, rcs1 = 0x%x, rcs2 = 0x%x\n", rcs0, rcs1, rcs2);
+	spin_lock_irqsave(&ak4117->lock, _flags);
+	if (rcs0 & AK4117_PAR)
+		ak4117->errors[AK4117_PARITY_ERRORS]++;
+	if (rcs0 & AK4117_V)
+		ak4117->errors[AK4117_V_BIT_ERRORS]++;
+	if (rcs2 & AK4117_CCRC)
+		ak4117->errors[AK4117_CCRC_ERRORS]++;
+	if (rcs2 & AK4117_QCRC)
+		ak4117->errors[AK4117_QCRC_ERRORS]++;
+	c0 = (ak4117->rcs0 & (AK4117_QINT | AK4117_CINT | AK4117_STC | AK4117_AUDION | AK4117_AUTO | AK4117_UNLCK)) ^
+                     (rcs0 & (AK4117_QINT | AK4117_CINT | AK4117_STC | AK4117_AUDION | AK4117_AUTO | AK4117_UNLCK));
+	c1 = (ak4117->rcs1 & (AK4117_DTSCD | AK4117_NPCM | AK4117_PEM | 0x0f)) ^
+	             (rcs1 & (AK4117_DTSCD | AK4117_NPCM | AK4117_PEM | 0x0f));
+	ak4117->rcs0 = rcs0 & ~(AK4117_QINT | AK4117_CINT | AK4117_STC);
+	ak4117->rcs1 = rcs1;
+	ak4117->rcs2 = rcs2;
+	spin_unlock_irqrestore(&ak4117->lock, _flags);
+
+	if (rcs0 & AK4117_PAR)
+		snd_ctl_notify(ak4117->card, SNDRV_CTL_EVENT_MASK_VALUE, &ak4117->kctls[0]->id);
+	if (rcs0 & AK4117_V)
+		snd_ctl_notify(ak4117->card, SNDRV_CTL_EVENT_MASK_VALUE, &ak4117->kctls[1]->id);
+	if (rcs2 & AK4117_CCRC)
+		snd_ctl_notify(ak4117->card, SNDRV_CTL_EVENT_MASK_VALUE, &ak4117->kctls[2]->id);
+	if (rcs2 & AK4117_QCRC)
+		snd_ctl_notify(ak4117->card, SNDRV_CTL_EVENT_MASK_VALUE, &ak4117->kctls[3]->id);
+
+	/* rate change */
+	if (c1 & 0x0f)
+		snd_ctl_notify(ak4117->card, SNDRV_CTL_EVENT_MASK_VALUE, &ak4117->kctls[4]->id);
+
+	if ((c1 & AK4117_PEM) | (c0 & AK4117_CINT))
+		snd_ctl_notify(ak4117->card, SNDRV_CTL_EVENT_MASK_VALUE, &ak4117->kctls[6]->id);
+	if (c0 & AK4117_QINT)
+		snd_ctl_notify(ak4117->card, SNDRV_CTL_EVENT_MASK_VALUE, &ak4117->kctls[8]->id);
+
+	if (c0 & AK4117_AUDION)
+		snd_ctl_notify(ak4117->card, SNDRV_CTL_EVENT_MASK_VALUE, &ak4117->kctls[9]->id);
+	if (c1 & AK4117_NPCM)
+		snd_ctl_notify(ak4117->card, SNDRV_CTL_EVENT_MASK_VALUE, &ak4117->kctls[10]->id);
+	if (c1 & AK4117_DTSCD)
+		snd_ctl_notify(ak4117->card, SNDRV_CTL_EVENT_MASK_VALUE, &ak4117->kctls[11]->id);
+		
+	if (ak4117->change_callback && (c0 | c1) != 0)
+		ak4117->change_callback(ak4117, c0, c1);
+
+      __rate:
+	/* compare rate */
+	res = external_rate(rcs1);
+	if (!(flags & AK4117_CHECK_NO_RATE) && runtime && runtime->rate != res) {
+		snd_pcm_stream_lock_irqsave(ak4117->substream, _flags);
+		if (snd_pcm_running(ak4117->substream)) {
+			// printk(KERN_DEBUG "rate changed (%i <- %i)\n", runtime->rate, res);
+			snd_pcm_stop(ak4117->substream, SNDRV_PCM_STATE_DRAINING);
+			wake_up(&runtime->sleep);
+			res = 1;
+		}
+		snd_pcm_stream_unlock_irqrestore(ak4117->substream, _flags);
+	}
+	return res;
+}
+
+static void snd_ak4117_timer(struct timer_list *t)
+{
+	struct ak4117 *chip = from_timer(chip, t, timer);
+
+	if (chip->init)
+		return;
+	snd_ak4117_check_rate_and_errors(chip, 0);
+	mod_timer(&chip->timer, 1 + jiffies);
+}
+
+EXPORT_SYMBOL(snd_ak4117_create);
+EXPORT_SYMBOL(snd_ak4117_reg_write);
+EXPORT_SYMBOL(snd_ak4117_reinit);
+EXPORT_SYMBOL(snd_ak4117_build);
+EXPORT_SYMBOL(snd_ak4117_external_rate);
+EXPORT_SYMBOL(snd_ak4117_check_rate_and_errors);