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authorLibravatar Linus Torvalds <torvalds@linux-foundation.org>2023-02-21 18:24:12 -0800
committerLibravatar Linus Torvalds <torvalds@linux-foundation.org>2023-02-21 18:24:12 -0800
commit5b7c4cabbb65f5c469464da6c5f614cbd7f730f2 (patch)
treecc5c2d0a898769fd59549594fedb3ee6f84e59a0 /sound/isa/msnd/msnd_pinnacle_mixer.c
downloadlinux-5b7c4cabbb65f5c469464da6c5f614cbd7f730f2.tar.gz
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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(). ...
Diffstat (limited to 'sound/isa/msnd/msnd_pinnacle_mixer.c')
-rw-r--r--sound/isa/msnd/msnd_pinnacle_mixer.c333
1 files changed, 333 insertions, 0 deletions
diff --git a/sound/isa/msnd/msnd_pinnacle_mixer.c b/sound/isa/msnd/msnd_pinnacle_mixer.c
new file mode 100644
index 000000000..63633bd41
--- /dev/null
+++ b/sound/isa/msnd/msnd_pinnacle_mixer.c
@@ -0,0 +1,333 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/***************************************************************************
+ msnd_pinnacle_mixer.c - description
+ -------------------
+ begin : Fre Jun 7 2002
+ copyright : (C) 2002 by karsten wiese
+ email : annabellesgarden@yahoo.de
+ ***************************************************************************/
+
+/***************************************************************************
+ * *
+ * *
+ ***************************************************************************/
+
+#include <linux/io.h>
+#include <linux/export.h>
+
+#include <sound/core.h>
+#include <sound/control.h>
+#include "msnd.h"
+#include "msnd_pinnacle.h"
+
+
+#define MSND_MIXER_VOLUME 0
+#define MSND_MIXER_PCM 1
+#define MSND_MIXER_AUX 2 /* Input source 1 (aux1) */
+#define MSND_MIXER_IMIX 3 /* Recording monitor */
+#define MSND_MIXER_SYNTH 4
+#define MSND_MIXER_SPEAKER 5
+#define MSND_MIXER_LINE 6
+#define MSND_MIXER_MIC 7
+#define MSND_MIXER_RECLEV 11 /* Recording level */
+#define MSND_MIXER_IGAIN 12 /* Input gain */
+#define MSND_MIXER_OGAIN 13 /* Output gain */
+#define MSND_MIXER_DIGITAL 17 /* Digital (input) 1 */
+
+/* Device mask bits */
+
+#define MSND_MASK_VOLUME (1 << MSND_MIXER_VOLUME)
+#define MSND_MASK_SYNTH (1 << MSND_MIXER_SYNTH)
+#define MSND_MASK_PCM (1 << MSND_MIXER_PCM)
+#define MSND_MASK_SPEAKER (1 << MSND_MIXER_SPEAKER)
+#define MSND_MASK_LINE (1 << MSND_MIXER_LINE)
+#define MSND_MASK_MIC (1 << MSND_MIXER_MIC)
+#define MSND_MASK_IMIX (1 << MSND_MIXER_IMIX)
+#define MSND_MASK_RECLEV (1 << MSND_MIXER_RECLEV)
+#define MSND_MASK_IGAIN (1 << MSND_MIXER_IGAIN)
+#define MSND_MASK_OGAIN (1 << MSND_MIXER_OGAIN)
+#define MSND_MASK_AUX (1 << MSND_MIXER_AUX)
+#define MSND_MASK_DIGITAL (1 << MSND_MIXER_DIGITAL)
+
+static int snd_msndmix_info_mux(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_info *uinfo)
+{
+ static const char * const texts[3] = {
+ "Analog", "MASS", "SPDIF",
+ };
+ struct snd_msnd *chip = snd_kcontrol_chip(kcontrol);
+ unsigned items = test_bit(F_HAVEDIGITAL, &chip->flags) ? 3 : 2;
+
+ return snd_ctl_enum_info(uinfo, 1, items, texts);
+}
+
+static int snd_msndmix_get_mux(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct snd_msnd *chip = snd_kcontrol_chip(kcontrol);
+ /* MSND_MASK_IMIX is the default */
+ ucontrol->value.enumerated.item[0] = 0;
+
+ if (chip->recsrc & MSND_MASK_SYNTH) {
+ ucontrol->value.enumerated.item[0] = 1;
+ } else if ((chip->recsrc & MSND_MASK_DIGITAL) &&
+ test_bit(F_HAVEDIGITAL, &chip->flags)) {
+ ucontrol->value.enumerated.item[0] = 2;
+ }
+
+
+ return 0;
+}
+
+static int snd_msndmix_set_mux(struct snd_msnd *chip, int val)
+{
+ unsigned newrecsrc;
+ int change;
+ unsigned char msndbyte;
+
+ switch (val) {
+ case 0:
+ newrecsrc = MSND_MASK_IMIX;
+ msndbyte = HDEXAR_SET_ANA_IN;
+ break;
+ case 1:
+ newrecsrc = MSND_MASK_SYNTH;
+ msndbyte = HDEXAR_SET_SYNTH_IN;
+ break;
+ case 2:
+ newrecsrc = MSND_MASK_DIGITAL;
+ msndbyte = HDEXAR_SET_DAT_IN;
+ break;
+ default:
+ return -EINVAL;
+ }
+ change = newrecsrc != chip->recsrc;
+ if (change) {
+ change = 0;
+ if (!snd_msnd_send_word(chip, 0, 0, msndbyte))
+ if (!snd_msnd_send_dsp_cmd(chip, HDEX_AUX_REQ)) {
+ chip->recsrc = newrecsrc;
+ change = 1;
+ }
+ }
+ return change;
+}
+
+static int snd_msndmix_put_mux(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct snd_msnd *msnd = snd_kcontrol_chip(kcontrol);
+ return snd_msndmix_set_mux(msnd, ucontrol->value.enumerated.item[0]);
+}
+
+
+static int snd_msndmix_volume_info(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_info *uinfo)
+{
+ uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
+ uinfo->count = 2;
+ uinfo->value.integer.min = 0;
+ uinfo->value.integer.max = 100;
+ return 0;
+}
+
+static int snd_msndmix_volume_get(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct snd_msnd *msnd = snd_kcontrol_chip(kcontrol);
+ int addr = kcontrol->private_value;
+ unsigned long flags;
+
+ spin_lock_irqsave(&msnd->mixer_lock, flags);
+ ucontrol->value.integer.value[0] = msnd->left_levels[addr] * 100;
+ ucontrol->value.integer.value[0] /= 0xFFFF;
+ ucontrol->value.integer.value[1] = msnd->right_levels[addr] * 100;
+ ucontrol->value.integer.value[1] /= 0xFFFF;
+ spin_unlock_irqrestore(&msnd->mixer_lock, flags);
+ return 0;
+}
+
+#define update_volm(a, b) \
+ do { \
+ writew((dev->left_levels[a] >> 1) * \
+ readw(dev->SMA + SMA_wCurrMastVolLeft) / 0xffff, \
+ dev->SMA + SMA_##b##Left); \
+ writew((dev->right_levels[a] >> 1) * \
+ readw(dev->SMA + SMA_wCurrMastVolRight) / 0xffff, \
+ dev->SMA + SMA_##b##Right); \
+ } while (0);
+
+#define update_potm(d, s, ar) \
+ do { \
+ writeb((dev->left_levels[d] >> 8) * \
+ readw(dev->SMA + SMA_wCurrMastVolLeft) / 0xffff, \
+ dev->SMA + SMA_##s##Left); \
+ writeb((dev->right_levels[d] >> 8) * \
+ readw(dev->SMA + SMA_wCurrMastVolRight) / 0xffff, \
+ dev->SMA + SMA_##s##Right); \
+ if (snd_msnd_send_word(dev, 0, 0, ar) == 0) \
+ snd_msnd_send_dsp_cmd(dev, HDEX_AUX_REQ); \
+ } while (0);
+
+#define update_pot(d, s, ar) \
+ do { \
+ writeb(dev->left_levels[d] >> 8, \
+ dev->SMA + SMA_##s##Left); \
+ writeb(dev->right_levels[d] >> 8, \
+ dev->SMA + SMA_##s##Right); \
+ if (snd_msnd_send_word(dev, 0, 0, ar) == 0) \
+ snd_msnd_send_dsp_cmd(dev, HDEX_AUX_REQ); \
+ } while (0);
+
+
+static int snd_msndmix_set(struct snd_msnd *dev, int d, int left, int right)
+{
+ int bLeft, bRight;
+ int wLeft, wRight;
+ int updatemaster = 0;
+
+ if (d >= LEVEL_ENTRIES)
+ return -EINVAL;
+
+ bLeft = left * 0xff / 100;
+ wLeft = left * 0xffff / 100;
+
+ bRight = right * 0xff / 100;
+ wRight = right * 0xffff / 100;
+
+ dev->left_levels[d] = wLeft;
+ dev->right_levels[d] = wRight;
+
+ switch (d) {
+ /* master volume unscaled controls */
+ case MSND_MIXER_LINE: /* line pot control */
+ /* scaled by IMIX in digital mix */
+ writeb(bLeft, dev->SMA + SMA_bInPotPosLeft);
+ writeb(bRight, dev->SMA + SMA_bInPotPosRight);
+ if (snd_msnd_send_word(dev, 0, 0, HDEXAR_IN_SET_POTS) == 0)
+ snd_msnd_send_dsp_cmd(dev, HDEX_AUX_REQ);
+ break;
+ case MSND_MIXER_MIC: /* mic pot control */
+ if (dev->type == msndClassic)
+ return -EINVAL;
+ /* scaled by IMIX in digital mix */
+ writeb(bLeft, dev->SMA + SMA_bMicPotPosLeft);
+ writeb(bRight, dev->SMA + SMA_bMicPotPosRight);
+ if (snd_msnd_send_word(dev, 0, 0, HDEXAR_MIC_SET_POTS) == 0)
+ snd_msnd_send_dsp_cmd(dev, HDEX_AUX_REQ);
+ break;
+ case MSND_MIXER_VOLUME: /* master volume */
+ writew(wLeft, dev->SMA + SMA_wCurrMastVolLeft);
+ writew(wRight, dev->SMA + SMA_wCurrMastVolRight);
+ fallthrough;
+ case MSND_MIXER_AUX: /* aux pot control */
+ /* scaled by master volume */
+
+ /* digital controls */
+ case MSND_MIXER_SYNTH: /* synth vol (dsp mix) */
+ case MSND_MIXER_PCM: /* pcm vol (dsp mix) */
+ case MSND_MIXER_IMIX: /* input monitor (dsp mix) */
+ /* scaled by master volume */
+ updatemaster = 1;
+ break;
+
+ default:
+ return -EINVAL;
+ }
+
+ if (updatemaster) {
+ /* update master volume scaled controls */
+ update_volm(MSND_MIXER_PCM, wCurrPlayVol);
+ update_volm(MSND_MIXER_IMIX, wCurrInVol);
+ if (dev->type == msndPinnacle)
+ update_volm(MSND_MIXER_SYNTH, wCurrMHdrVol);
+ update_potm(MSND_MIXER_AUX, bAuxPotPos, HDEXAR_AUX_SET_POTS);
+ }
+
+ return 0;
+}
+
+static int snd_msndmix_volume_put(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct snd_msnd *msnd = snd_kcontrol_chip(kcontrol);
+ int change, addr = kcontrol->private_value;
+ int left, right;
+ unsigned long flags;
+
+ left = ucontrol->value.integer.value[0] % 101;
+ right = ucontrol->value.integer.value[1] % 101;
+ spin_lock_irqsave(&msnd->mixer_lock, flags);
+ change = msnd->left_levels[addr] != left
+ || msnd->right_levels[addr] != right;
+ snd_msndmix_set(msnd, addr, left, right);
+ spin_unlock_irqrestore(&msnd->mixer_lock, flags);
+ return change;
+}
+
+
+#define DUMMY_VOLUME(xname, xindex, addr) \
+{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xindex, \
+ .info = snd_msndmix_volume_info, \
+ .get = snd_msndmix_volume_get, .put = snd_msndmix_volume_put, \
+ .private_value = addr }
+
+
+static const struct snd_kcontrol_new snd_msnd_controls[] = {
+DUMMY_VOLUME("Master Volume", 0, MSND_MIXER_VOLUME),
+DUMMY_VOLUME("PCM Volume", 0, MSND_MIXER_PCM),
+DUMMY_VOLUME("Aux Volume", 0, MSND_MIXER_AUX),
+DUMMY_VOLUME("Line Volume", 0, MSND_MIXER_LINE),
+DUMMY_VOLUME("Mic Volume", 0, MSND_MIXER_MIC),
+DUMMY_VOLUME("Monitor", 0, MSND_MIXER_IMIX),
+{
+ .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+ .name = "Capture Source",
+ .info = snd_msndmix_info_mux,
+ .get = snd_msndmix_get_mux,
+ .put = snd_msndmix_put_mux,
+}
+};
+
+
+int snd_msndmix_new(struct snd_card *card)
+{
+ struct snd_msnd *chip = card->private_data;
+ unsigned int idx;
+ int err;
+
+ if (snd_BUG_ON(!chip))
+ return -EINVAL;
+ spin_lock_init(&chip->mixer_lock);
+ strcpy(card->mixername, "MSND Pinnacle Mixer");
+
+ for (idx = 0; idx < ARRAY_SIZE(snd_msnd_controls); idx++) {
+ err = snd_ctl_add(card,
+ snd_ctl_new1(snd_msnd_controls + idx, chip));
+ if (err < 0)
+ return err;
+ }
+
+ return 0;
+}
+EXPORT_SYMBOL(snd_msndmix_new);
+
+void snd_msndmix_setup(struct snd_msnd *dev)
+{
+ update_pot(MSND_MIXER_LINE, bInPotPos, HDEXAR_IN_SET_POTS);
+ update_potm(MSND_MIXER_AUX, bAuxPotPos, HDEXAR_AUX_SET_POTS);
+ update_volm(MSND_MIXER_PCM, wCurrPlayVol);
+ update_volm(MSND_MIXER_IMIX, wCurrInVol);
+ if (dev->type == msndPinnacle) {
+ update_pot(MSND_MIXER_MIC, bMicPotPos, HDEXAR_MIC_SET_POTS);
+ update_volm(MSND_MIXER_SYNTH, wCurrMHdrVol);
+ }
+}
+EXPORT_SYMBOL(snd_msndmix_setup);
+
+int snd_msndmix_force_recsrc(struct snd_msnd *dev, int recsrc)
+{
+ dev->recsrc = -1;
+ return snd_msndmix_set_mux(dev, recsrc);
+}
+EXPORT_SYMBOL(snd_msndmix_force_recsrc);