diff options
author | 2023-02-21 18:24:12 -0800 | |
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committer | 2023-02-21 18:24:12 -0800 | |
commit | 5b7c4cabbb65f5c469464da6c5f614cbd7f730f2 (patch) | |
tree | cc5c2d0a898769fd59549594fedb3ee6f84e59a0 /sound/soc/soc-jack.c | |
download | linux-5b7c4cabbb65f5c469464da6c5f614cbd7f730f2.tar.gz linux-5b7c4cabbb65f5c469464da6c5f614cbd7f730f2.zip |
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/soc/soc-jack.c')
-rw-r--r-- | sound/soc/soc-jack.c | 453 |
1 files changed, 453 insertions, 0 deletions
diff --git a/sound/soc/soc-jack.c b/sound/soc/soc-jack.c new file mode 100644 index 000000000..fcece5ca3 --- /dev/null +++ b/sound/soc/soc-jack.c @@ -0,0 +1,453 @@ +// SPDX-License-Identifier: GPL-2.0+ +// +// soc-jack.c -- ALSA SoC jack handling +// +// Copyright 2008 Wolfson Microelectronics PLC. +// +// Author: Mark Brown <broonie@opensource.wolfsonmicro.com> + +#include <sound/jack.h> +#include <sound/soc.h> +#include <linux/gpio.h> +#include <linux/gpio/consumer.h> +#include <linux/interrupt.h> +#include <linux/workqueue.h> +#include <linux/delay.h> +#include <linux/export.h> +#include <linux/suspend.h> +#include <trace/events/asoc.h> + +/** + * snd_soc_jack_report - Report the current status for a jack + * + * @jack: the jack + * @status: a bitmask of enum snd_jack_type values that are currently detected. + * @mask: a bitmask of enum snd_jack_type values that being reported. + * + * If configured using snd_soc_jack_add_pins() then the associated + * DAPM pins will be enabled or disabled as appropriate and DAPM + * synchronised. + * + * Note: This function uses mutexes and should be called from a + * context which can sleep (such as a workqueue). + */ +void snd_soc_jack_report(struct snd_soc_jack *jack, int status, int mask) +{ + struct snd_soc_dapm_context *dapm; + struct snd_soc_jack_pin *pin; + unsigned int sync = 0; + + if (!jack) + return; + trace_snd_soc_jack_report(jack, mask, status); + + dapm = &jack->card->dapm; + + mutex_lock(&jack->mutex); + + jack->status &= ~mask; + jack->status |= status & mask; + + trace_snd_soc_jack_notify(jack, status); + + list_for_each_entry(pin, &jack->pins, list) { + int enable = pin->mask & jack->status; + + if (pin->invert) + enable = !enable; + + if (enable) + snd_soc_dapm_enable_pin(dapm, pin->pin); + else + snd_soc_dapm_disable_pin(dapm, pin->pin); + + /* we need to sync for this case only */ + sync = 1; + } + + /* Report before the DAPM sync to help users updating micbias status */ + blocking_notifier_call_chain(&jack->notifier, jack->status, jack); + + if (sync) + snd_soc_dapm_sync(dapm); + + snd_jack_report(jack->jack, jack->status); + + mutex_unlock(&jack->mutex); +} +EXPORT_SYMBOL_GPL(snd_soc_jack_report); + +/** + * snd_soc_jack_add_zones - Associate voltage zones with jack + * + * @jack: ASoC jack + * @count: Number of zones + * @zones: Array of zones + * + * After this function has been called the zones specified in the + * array will be associated with the jack. + */ +int snd_soc_jack_add_zones(struct snd_soc_jack *jack, int count, + struct snd_soc_jack_zone *zones) +{ + int i; + + for (i = 0; i < count; i++) { + INIT_LIST_HEAD(&zones[i].list); + list_add(&(zones[i].list), &jack->jack_zones); + } + return 0; +} +EXPORT_SYMBOL_GPL(snd_soc_jack_add_zones); + +/** + * snd_soc_jack_get_type - Based on the mic bias value, this function returns + * the type of jack from the zones declared in the jack type + * + * @jack: ASoC jack + * @micbias_voltage: mic bias voltage at adc channel when jack is plugged in + * + * Based on the mic bias value passed, this function helps identify + * the type of jack from the already declared jack zones + */ +int snd_soc_jack_get_type(struct snd_soc_jack *jack, int micbias_voltage) +{ + struct snd_soc_jack_zone *zone; + + list_for_each_entry(zone, &jack->jack_zones, list) { + if (micbias_voltage >= zone->min_mv && + micbias_voltage < zone->max_mv) + return zone->jack_type; + } + return 0; +} +EXPORT_SYMBOL_GPL(snd_soc_jack_get_type); + +/** + * snd_soc_jack_add_pins - Associate DAPM pins with an ASoC jack + * + * @jack: ASoC jack created with snd_soc_card_jack_new_pins() + * @count: Number of pins + * @pins: Array of pins + * + * After this function has been called the DAPM pins specified in the + * pins array will have their status updated to reflect the current + * state of the jack whenever the jack status is updated. + */ +int snd_soc_jack_add_pins(struct snd_soc_jack *jack, int count, + struct snd_soc_jack_pin *pins) +{ + int i; + + for (i = 0; i < count; i++) { + if (!pins[i].pin) { + dev_err(jack->card->dev, "ASoC: No name for pin %d\n", + i); + return -EINVAL; + } + if (!pins[i].mask) { + dev_err(jack->card->dev, "ASoC: No mask for pin %d" + " (%s)\n", i, pins[i].pin); + return -EINVAL; + } + + INIT_LIST_HEAD(&pins[i].list); + list_add(&(pins[i].list), &jack->pins); + snd_jack_add_new_kctl(jack->jack, pins[i].pin, pins[i].mask); + } + + /* Update to reflect the last reported status; canned jack + * implementations are likely to set their state before the + * card has an opportunity to associate pins. + */ + snd_soc_jack_report(jack, 0, 0); + + return 0; +} +EXPORT_SYMBOL_GPL(snd_soc_jack_add_pins); + +/** + * snd_soc_jack_notifier_register - Register a notifier for jack status + * + * @jack: ASoC jack + * @nb: Notifier block to register + * + * Register for notification of the current status of the jack. Note + * that it is not possible to report additional jack events in the + * callback from the notifier, this is intended to support + * applications such as enabling electrical detection only when a + * mechanical detection event has occurred. + */ +void snd_soc_jack_notifier_register(struct snd_soc_jack *jack, + struct notifier_block *nb) +{ + blocking_notifier_chain_register(&jack->notifier, nb); +} +EXPORT_SYMBOL_GPL(snd_soc_jack_notifier_register); + +/** + * snd_soc_jack_notifier_unregister - Unregister a notifier for jack status + * + * @jack: ASoC jack + * @nb: Notifier block to unregister + * + * Stop notifying for status changes. + */ +void snd_soc_jack_notifier_unregister(struct snd_soc_jack *jack, + struct notifier_block *nb) +{ + blocking_notifier_chain_unregister(&jack->notifier, nb); +} +EXPORT_SYMBOL_GPL(snd_soc_jack_notifier_unregister); + +#ifdef CONFIG_GPIOLIB +struct jack_gpio_tbl { + int count; + struct snd_soc_jack *jack; + struct snd_soc_jack_gpio *gpios; +}; + +/* gpio detect */ +static void snd_soc_jack_gpio_detect(struct snd_soc_jack_gpio *gpio) +{ + struct snd_soc_jack *jack = gpio->jack; + int enable; + int report; + + enable = gpiod_get_value_cansleep(gpio->desc); + if (gpio->invert) + enable = !enable; + + if (enable) + report = gpio->report; + else + report = 0; + + if (gpio->jack_status_check) + report = gpio->jack_status_check(gpio->data); + + snd_soc_jack_report(jack, report, gpio->report); +} + +/* irq handler for gpio pin */ +static irqreturn_t gpio_handler(int irq, void *data) +{ + struct snd_soc_jack_gpio *gpio = data; + struct device *dev = gpio->jack->card->dev; + + trace_snd_soc_jack_irq(gpio->name); + + if (device_may_wakeup(dev)) + pm_wakeup_event(dev, gpio->debounce_time + 50); + + queue_delayed_work(system_power_efficient_wq, &gpio->work, + msecs_to_jiffies(gpio->debounce_time)); + + return IRQ_HANDLED; +} + +/* gpio work */ +static void gpio_work(struct work_struct *work) +{ + struct snd_soc_jack_gpio *gpio; + + gpio = container_of(work, struct snd_soc_jack_gpio, work.work); + snd_soc_jack_gpio_detect(gpio); +} + +static int snd_soc_jack_pm_notifier(struct notifier_block *nb, + unsigned long action, void *data) +{ + struct snd_soc_jack_gpio *gpio = + container_of(nb, struct snd_soc_jack_gpio, pm_notifier); + + switch (action) { + case PM_POST_SUSPEND: + case PM_POST_HIBERNATION: + case PM_POST_RESTORE: + /* + * Use workqueue so we do not have to care about running + * concurrently with work triggered by the interrupt handler. + */ + queue_delayed_work(system_power_efficient_wq, &gpio->work, 0); + break; + } + + return NOTIFY_DONE; +} + +static void jack_free_gpios(struct snd_soc_jack *jack, int count, + struct snd_soc_jack_gpio *gpios) +{ + int i; + + for (i = 0; i < count; i++) { + gpiod_unexport(gpios[i].desc); + unregister_pm_notifier(&gpios[i].pm_notifier); + free_irq(gpiod_to_irq(gpios[i].desc), &gpios[i]); + cancel_delayed_work_sync(&gpios[i].work); + gpiod_put(gpios[i].desc); + gpios[i].jack = NULL; + } +} + +static void jack_devres_free_gpios(struct device *dev, void *res) +{ + struct jack_gpio_tbl *tbl = res; + + jack_free_gpios(tbl->jack, tbl->count, tbl->gpios); +} + +/** + * snd_soc_jack_add_gpios - Associate GPIO pins with an ASoC jack + * + * @jack: ASoC jack + * @count: number of pins + * @gpios: array of gpio pins + * + * This function will request gpio, set data direction and request irq + * for each gpio in the array. + */ +int snd_soc_jack_add_gpios(struct snd_soc_jack *jack, int count, + struct snd_soc_jack_gpio *gpios) +{ + int i, ret; + struct jack_gpio_tbl *tbl; + + tbl = devres_alloc(jack_devres_free_gpios, sizeof(*tbl), GFP_KERNEL); + if (!tbl) + return -ENOMEM; + tbl->jack = jack; + tbl->count = count; + tbl->gpios = gpios; + + for (i = 0; i < count; i++) { + if (!gpios[i].name) { + dev_err(jack->card->dev, + "ASoC: No name for gpio at index %d\n", i); + ret = -EINVAL; + goto undo; + } + + if (gpios[i].desc) { + /* Already have a GPIO descriptor. */ + goto got_gpio; + } else if (gpios[i].gpiod_dev) { + /* Get a GPIO descriptor */ + gpios[i].desc = gpiod_get_index(gpios[i].gpiod_dev, + gpios[i].name, + gpios[i].idx, GPIOD_IN); + if (IS_ERR(gpios[i].desc)) { + ret = PTR_ERR(gpios[i].desc); + dev_err(gpios[i].gpiod_dev, + "ASoC: Cannot get gpio at index %d: %d", + i, ret); + goto undo; + } + } else { + /* legacy GPIO number */ + if (!gpio_is_valid(gpios[i].gpio)) { + dev_err(jack->card->dev, + "ASoC: Invalid gpio %d\n", + gpios[i].gpio); + ret = -EINVAL; + goto undo; + } + + ret = gpio_request_one(gpios[i].gpio, GPIOF_IN, + gpios[i].name); + if (ret) + goto undo; + + gpios[i].desc = gpio_to_desc(gpios[i].gpio); + } +got_gpio: + INIT_DELAYED_WORK(&gpios[i].work, gpio_work); + gpios[i].jack = jack; + + ret = request_any_context_irq(gpiod_to_irq(gpios[i].desc), + gpio_handler, + IRQF_TRIGGER_RISING | + IRQF_TRIGGER_FALLING, + gpios[i].name, + &gpios[i]); + if (ret < 0) + goto err; + + if (gpios[i].wake) { + ret = irq_set_irq_wake(gpiod_to_irq(gpios[i].desc), 1); + if (ret != 0) + dev_err(jack->card->dev, + "ASoC: Failed to mark GPIO at index %d as wake source: %d\n", + i, ret); + } + + /* + * Register PM notifier so we do not miss state transitions + * happening while system is asleep. + */ + gpios[i].pm_notifier.notifier_call = snd_soc_jack_pm_notifier; + register_pm_notifier(&gpios[i].pm_notifier); + + /* Expose GPIO value over sysfs for diagnostic purposes */ + gpiod_export(gpios[i].desc, false); + + /* Update initial jack status */ + schedule_delayed_work(&gpios[i].work, + msecs_to_jiffies(gpios[i].debounce_time)); + } + + devres_add(jack->card->dev, tbl); + return 0; + +err: + gpio_free(gpios[i].gpio); +undo: + jack_free_gpios(jack, i, gpios); + devres_free(tbl); + + return ret; +} +EXPORT_SYMBOL_GPL(snd_soc_jack_add_gpios); + +/** + * snd_soc_jack_add_gpiods - Associate GPIO descriptor pins with an ASoC jack + * + * @gpiod_dev: GPIO consumer device + * @jack: ASoC jack + * @count: number of pins + * @gpios: array of gpio pins + * + * This function will request gpio, set data direction and request irq + * for each gpio in the array. + */ +int snd_soc_jack_add_gpiods(struct device *gpiod_dev, + struct snd_soc_jack *jack, + int count, struct snd_soc_jack_gpio *gpios) +{ + int i; + + for (i = 0; i < count; i++) + gpios[i].gpiod_dev = gpiod_dev; + + return snd_soc_jack_add_gpios(jack, count, gpios); +} +EXPORT_SYMBOL_GPL(snd_soc_jack_add_gpiods); + +/** + * snd_soc_jack_free_gpios - Release GPIO pins' resources of an ASoC jack + * + * @jack: ASoC jack + * @count: number of pins + * @gpios: array of gpio pins + * + * Release gpio and irq resources for gpio pins associated with an ASoC jack. + */ +void snd_soc_jack_free_gpios(struct snd_soc_jack *jack, int count, + struct snd_soc_jack_gpio *gpios) +{ + jack_free_gpios(jack, count, gpios); + devres_destroy(jack->card->dev, jack_devres_free_gpios, NULL, NULL); +} +EXPORT_SYMBOL_GPL(snd_soc_jack_free_gpios); +#endif /* CONFIG_GPIOLIB */ |