464464ac47
Changes in 4.19.226 Bluetooth: bfusb: fix division by zero in send path USB: core: Fix bug in resuming hub's handling of wakeup requests USB: Fix "slab-out-of-bounds Write" bug in usb_hcd_poll_rh_status can: bcm: switch timer to HRTIMER_MODE_SOFT and remove hrtimer_tasklet veth: Do not record rx queue hint in veth_xmit mfd: intel-lpss: Fix too early PM enablement in the ACPI ->probe() can: gs_usb: fix use of uninitialized variable, detach device on reception of invalid USB data can: gs_usb: gs_can_start_xmit(): zero-initialize hf->{flags,reserved} random: fix data race on crng_node_pool random: fix data race on crng init time staging: wlan-ng: Avoid bitwise vs logical OR warning in hfa384x_usb_throttlefn() drm/i915: Avoid bitwise vs logical OR warning in snb_wm_latency_quirk() kbuild: Add $(KBUILD_HOSTLDFLAGS) to 'has_libelf' test orangefs: Fix the size of a memory allocation in orangefs_bufmap_alloc() KVM: s390: Clarify SIGP orders versus STOP/RESTART media: uvcvideo: fix division by zero at stream start rtlwifi: rtl8192cu: Fix WARNING when calling local_irq_restore() with interrupts enabled firmware: qemu_fw_cfg: fix sysfs information leak firmware: qemu_fw_cfg: fix NULL-pointer deref on duplicate entries firmware: qemu_fw_cfg: fix kobject leak in probe error path ALSA: hda/realtek - Fix silent output on Gigabyte X570 Aorus Master after reboot from Windows HID: uhid: Fix worker destroying device without any protection HID: wacom: Reset expected and received contact counts at the same time HID: wacom: Ignore the confidence flag when a touch is removed HID: wacom: Avoid using stale array indicies to read contact count f2fs: fix to do sanity check in is_alive() nfc: llcp: fix NULL error pointer dereference on sendmsg() after failed bind() mtd: rawnand: gpmi: Remove explicit default gpmi clock setting for i.MX6 x86/gpu: Reserve stolen memory for first integrated Intel GPU rtc: cmos: take rtc_lock while reading from CMOS media: flexcop-usb: fix control-message timeouts media: mceusb: fix control-message timeouts media: em28xx: fix control-message timeouts media: cpia2: fix control-message timeouts media: s2255: fix control-message timeouts media: dib0700: fix undefined behavior in tuner shutdown media: redrat3: fix control-message timeouts media: pvrusb2: fix control-message timeouts media: stk1160: fix control-message timeouts can: softing_cs: softingcs_probe(): fix memleak on registration failure lkdtm: Fix content of section containing lkdtm_rodata_do_nothing() PCI: Add function 1 DMA alias quirk for Marvell 88SE9125 SATA controller shmem: fix a race between shmem_unused_huge_shrink and shmem_evict_inode drm/panel: innolux-p079zca: Delete panel on attach() failure Bluetooth: cmtp: fix possible panic when cmtp_init_sockets() fails clk: bcm-2835: Pick the closest clock rate clk: bcm-2835: Remove rounding up the dividers wcn36xx: Indicate beacon not connection loss on MISSED_BEACON_IND wcn36xx: Release DMA channel descriptor allocations media: videobuf2: Fix the size printk format media: em28xx: fix memory leak in em28xx_init_dev arm64: dts: meson-gxbb-wetek: fix missing GPIO binding Bluetooth: stop proccessing malicious adv data tee: fix put order in teedev_close_context() media: dmxdev: fix UAF when dvb_register_device() fails crypto: qce - fix uaf on qce_ahash_register_one tty: serial: atmel: Check return code of dmaengine_submit() tty: serial: atmel: Call dma_async_issue_pending() media: rcar-csi2: Correct the selection of hsfreqrange media: si470x-i2c: fix possible memory leak in si470x_i2c_probe() media: mtk-vcodec: call v4l2_m2m_ctx_release first when file is released netfilter: bridge: add support for pppoe filtering arm64: dts: qcom: msm8916: fix MMC controller aliases drm/amdgpu: Fix a NULL pointer dereference in amdgpu_connector_lcd_native_mode() drm/radeon/radeon_kms: Fix a NULL pointer dereference in radeon_driver_open_kms() tty: serial: uartlite: allow 64 bit address serial: amba-pl011: do not request memory region twice floppy: Fix hang in watchdog when disk is ejected media: dib8000: Fix a memleak in dib8000_init() media: saa7146: mxb: Fix a NULL pointer dereference in mxb_attach() media: si2157: Fix "warm" tuner state detection sched/rt: Try to restart rt period timer when rt runtime exceeded xfrm: fix a small bug in xfrm_sa_len() crypto: stm32/cryp - fix double pm exit media: dw2102: Fix use after free media: msi001: fix possible null-ptr-deref in msi001_probe() media: coda/imx-vdoa: Handle dma_set_coherent_mask error codes drm/msm/dpu: fix safe status debugfs file xfrm: interface with if_id 0 should return error xfrm: state and policy should fail if XFRMA_IF_ID 0 usb: ftdi-elan: fix memory leak on device disconnect ARM: dts: armada-38x: Add generic compatible to UART nodes mmc: meson-mx-sdio: add IRQ check x86/mce/inject: Avoid out-of-bounds write when setting flags pcmcia: rsrc_nonstatic: Fix a NULL pointer dereference in __nonstatic_find_io_region() pcmcia: rsrc_nonstatic: Fix a NULL pointer dereference in nonstatic_find_mem_region() netfilter: ipt_CLUSTERIP: fix refcount leak in clusterip_tg_check() ppp: ensure minimum packet size in ppp_write() staging: greybus: audio: Check null pointer fsl/fman: Check for null pointer after calling devm_ioremap Bluetooth: hci_bcm: Check for error irq spi: spi-meson-spifc: Add missing pm_runtime_disable() in meson_spifc_probe tpm: add request_locality before write TPM_INT_ENABLE can: softing: softing_startstop(): fix set but not used variable warning can: xilinx_can: xcan_probe(): check for error irq pcmcia: fix setting of kthread task states net: mcs7830: handle usb read errors properly ext4: avoid trim error on fs with small groups ALSA: jack: Add missing rwsem around snd_ctl_remove() calls ALSA: PCM: Add missing rwsem around snd_ctl_remove() calls ALSA: hda: Add missing rwsem around snd_ctl_remove() calls RDMA/hns: Validate the pkey index powerpc/prom_init: Fix improper check of prom_getprop() ASoC: uniphier: drop selecting non-existing SND_SOC_UNIPHIER_AIO_DMA ALSA: oss: fix compile error when OSS_DEBUG is enabled char/mwave: Adjust io port register size iommu/io-pgtable-arm: Fix table descriptor paddr formatting scsi: ufs: Fix race conditions related to driver data RDMA/core: Let ib_find_gid() continue search even after empty entry ASoC: rt5663: Handle device_property_read_u32_array error codes dmaengine: pxa/mmp: stop referencing config->slave_id iommu/iova: Fix race between FQ timeout and teardown ASoC: mediatek: Check for error clk pointer ASoC: samsung: idma: Check of ioremap return value misc: lattice-ecp3-config: Fix task hung when firmware load failed mips: lantiq: add support for clk_set_parent() mips: bcm63xx: add support for clk_set_parent() RDMA/cxgb4: Set queue pair state when being queried Bluetooth: Fix debugfs entry leak in hci_register_dev() fs: dlm: filter user dlm messages for kernel locks ar5523: Fix null-ptr-deref with unexpected WDCMSG_TARGET_START reply drm/nouveau/pmu/gm200-: avoid touching PMU outside of DEVINIT/PREOS/ACR usb: gadget: f_fs: Use stream_open() for endpoint files HID: apple: Do not reset quirks when the Fn key is not found media: b2c2: Add missing check in flexcop_pci_isr: mlxsw: pci: Add shutdown method in PCI driver drm/bridge: megachips: Ensure both bridges are probed before registration gpiolib: acpi: Do not set the IRQ type if the IRQ is already in use HSI: core: Fix return freed object in hsi_new_client mwifiex: Fix skb_over_panic in mwifiex_usb_recv() rsi: Fix out-of-bounds read in rsi_read_pkt() usb: uhci: add aspeed ast2600 uhci support floppy: Add max size check for user space request media: uvcvideo: Increase UVC_CTRL_CONTROL_TIMEOUT to 5 seconds. media: saa7146: hexium_orion: Fix a NULL pointer dereference in hexium_attach() media: m920x: don't use stack on USB reads iwlwifi: mvm: synchronize with FW after multicast commands ath10k: Fix tx hanging net-sysfs: update the queue counts in the unregistration path x86/mce: Mark mce_panic() noinstr x86/mce: Mark mce_end() noinstr x86/mce: Mark mce_read_aux() noinstr net: bonding: debug: avoid printing debug logs when bond is not notifying peers bpf: Do not WARN in bpf_warn_invalid_xdp_action() HID: quirks: Allow inverting the absolute X/Y values media: igorplugusb: receiver overflow should be reported media: saa7146: hexium_gemini: Fix a NULL pointer dereference in hexium_attach() mmc: core: Fixup storing of OCR for MMC_QUIRK_NONSTD_SDIO audit: ensure userspace is penalized the same as the kernel when under pressure arm64: tegra: Adjust length of CCPLEX cluster MMIO region usb: hub: Add delay for SuperSpeed hub resume to let links transit to U0 ath9k: Fix out-of-bound memcpy in ath9k_hif_usb_rx_stream iwlwifi: fix leaks/bad data after failed firmware load iwlwifi: remove module loading failure message iwlwifi: mvm: Fix calculation of frame length um: registers: Rename function names to avoid conflicts and build problems jffs2: GC deadlock reading a page that is used in jffs2_write_begin() ACPICA: actypes.h: Expand the ACPI_ACCESS_ definitions ACPICA: Utilities: Avoid deleting the same object twice in a row ACPICA: Executer: Fix the REFCLASS_REFOF case in acpi_ex_opcode_1A_0T_1R() ACPICA: Hardware: Do not flush CPU cache when entering S4 and S5 drm/amdgpu: fixup bad vram size on gmc v8 ACPI: battery: Add the ThinkPad "Not Charging" quirk btrfs: remove BUG_ON() in find_parent_nodes() btrfs: remove BUG_ON(!eie) in find_parent_nodes net: mdio: Demote probed message to debug print mac80211: allow non-standard VHT MCS-10/11 dm btree: add a defensive bounds check to insert_at() dm space map common: add bounds check to sm_ll_lookup_bitmap() net: phy: marvell: configure RGMII delays for 88E1118 net: gemini: allow any RGMII interface mode regulator: qcom_smd: Align probe function with rpmh-regulator serial: pl010: Drop CR register reset on set_termios serial: core: Keep mctrl register state and cached copy in sync parisc: Avoid calling faulthandler_disabled() twice powerpc/6xx: add missing of_node_put powerpc/powernv: add missing of_node_put powerpc/cell: add missing of_node_put powerpc/btext: add missing of_node_put powerpc/watchdog: Fix missed watchdog reset due to memory ordering race i2c: i801: Don't silently correct invalid transfer size powerpc/smp: Move setup_profiling_timer() under CONFIG_PROFILING i2c: mpc: Correct I2C reset procedure w1: Misuse of get_user()/put_user() reported by sparse ALSA: seq: Set upper limit of processed events powerpc: handle kdump appropriately with crash_kexec_post_notifiers option MIPS: OCTEON: add put_device() after of_find_device_by_node() i2c: designware-pci: Fix to change data types of hcnt and lcnt parameters MIPS: Octeon: Fix build errors using clang scsi: sr: Don't use GFP_DMA ASoC: mediatek: mt8173: fix device_node leak power: bq25890: Enable continuous conversion for ADC at charging rpmsg: core: Clean up resources on announce_create failure. ubifs: Error path in ubifs_remount_rw() seems to wrongly free write buffers serial: Fix incorrect rs485 polarity on uart open cputime, cpuacct: Include guest time in user time in cpuacct.stat iwlwifi: mvm: Increase the scan timeout guard to 30 seconds s390/mm: fix 2KB pgtable release race drm/etnaviv: limit submit sizes ext4: make sure to reset inode lockdep class when quota enabling fails ext4: make sure quota gets properly shutdown on error ext4: set csum seed in tmp inode while migrating to extents ext4: Fix BUG_ON in ext4_bread when write quota data ext4: don't use the orphan list when migrating an inode crypto: stm32/crc32 - Fix kernel BUG triggered in probe() ASoC: dpcm: prevent snd_soc_dpcm use after free regulator: core: Let boot-on regulators be powered off drm/radeon: fix error handling in radeon_driver_open_kms ARM: dts: Fix vcsi regulator to be always-on for droid4 to prevent hangs firmware: Update Kconfig help text for Google firmware media: rcar-csi2: Optimize the selection PHTW register Documentation: refer to config RANDOMIZE_BASE for kernel address-space randomization RDMA/hns: Modify the mapping attribute of doorbell to device RDMA/rxe: Fix a typo in opcode name dmaengine: stm32-mdma: fix STM32_MDMA_CTBR_TSEL_MASK powerpc/cell: Fix clang -Wimplicit-fallthrough warning powerpc/fsl/dts: Enable WA for erratum A-009885 on fman3l MDIO buses net/fsl: xgmac_mdio: Fix incorrect iounmap when removing module parisc: pdc_stable: Fix memory leak in pdcs_register_pathentries af_unix: annote lockless accesses to unix_tot_inflight & gc_in_progress net: axienet: Wait for PhyRstCmplt after core reset net: axienet: fix number of TX ring slots for available check rtc: pxa: fix null pointer dereference netns: add schedule point in ops_exit_list() libcxgb: Don't accidentally set RTO_ONLINK in cxgb_find_route() dmaengine: at_xdmac: Don't start transactions at tx_submit level dmaengine: at_xdmac: Print debug message after realeasing the lock dmaengine: at_xdmac: Fix lld view setting dmaengine: at_xdmac: Fix at_xdmac_lld struct definition net_sched: restore "mpu xxx" handling bcmgenet: add WOL IRQ check scripts/dtc: dtx_diff: remove broken example from help text lib82596: Fix IRQ check in sni_82596_probe mtd: nand: bbt: Fix corner case in bad block table handling mips,s390,sh,sparc: gup: Work around the "COW can break either way" issue fuse: fix bad inode fuse: fix live lock in fuse_iget() Linux 4.19.226 Signed-off-by: Greg Kroah-Hartman <gregkh@google.com> Change-Id: Ie7599317fe668c46e0ceca652b4172ad2ce6533d
403 lines
10 KiB
C
403 lines
10 KiB
C
/*
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* Jack abstraction layer
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*
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* Copyright 2008 Wolfson Microelectronics
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*
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*/
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#include <linux/input.h>
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#include <linux/slab.h>
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#include <linux/module.h>
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#include <sound/jack.h>
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#include <sound/core.h>
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#include <sound/control.h>
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struct snd_jack_kctl {
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struct snd_kcontrol *kctl;
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struct list_head list; /* list of controls belong to the same jack */
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unsigned int mask_bits; /* only masked status bits are reported via kctl */
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};
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#ifdef CONFIG_SND_JACK_INPUT_DEV
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static int jack_switch_types[] = {
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SW_HEADPHONE_INSERT,
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SW_MICROPHONE_INSERT,
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SW_LINEOUT_INSERT,
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SW_JACK_PHYSICAL_INSERT,
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SW_VIDEOOUT_INSERT,
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SW_LINEIN_INSERT,
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SW_HPHL_OVERCURRENT,
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SW_HPHR_OVERCURRENT,
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SW_UNSUPPORT_INSERT,
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SW_MICROPHONE2_INSERT,
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};
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#endif /* CONFIG_SND_JACK_INPUT_DEV */
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static int snd_jack_dev_disconnect(struct snd_device *device)
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{
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#ifdef CONFIG_SND_JACK_INPUT_DEV
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struct snd_jack *jack = device->device_data;
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if (!jack->input_dev)
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return 0;
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/* If the input device is registered with the input subsystem
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* then we need to use a different deallocator. */
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if (jack->registered)
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input_unregister_device(jack->input_dev);
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else
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input_free_device(jack->input_dev);
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jack->input_dev = NULL;
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#endif /* CONFIG_SND_JACK_INPUT_DEV */
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return 0;
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}
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static int snd_jack_dev_free(struct snd_device *device)
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{
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struct snd_jack *jack = device->device_data;
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struct snd_card *card = device->card;
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struct snd_jack_kctl *jack_kctl, *tmp_jack_kctl;
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down_write(&card->controls_rwsem);
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list_for_each_entry_safe(jack_kctl, tmp_jack_kctl, &jack->kctl_list, list) {
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list_del_init(&jack_kctl->list);
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snd_ctl_remove(card, jack_kctl->kctl);
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}
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up_write(&card->controls_rwsem);
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if (jack->private_free)
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jack->private_free(jack);
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snd_jack_dev_disconnect(device);
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kfree(jack->id);
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kfree(jack);
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return 0;
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}
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#ifdef CONFIG_SND_JACK_INPUT_DEV
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static int snd_jack_dev_register(struct snd_device *device)
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{
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struct snd_jack *jack = device->device_data;
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struct snd_card *card = device->card;
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int err, i;
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snprintf(jack->name, sizeof(jack->name), "%s %s",
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card->shortname, jack->id);
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if (!jack->input_dev)
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return 0;
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jack->input_dev->name = jack->name;
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/* Default to the sound card device. */
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if (!jack->input_dev->dev.parent)
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jack->input_dev->dev.parent = snd_card_get_device_link(card);
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/* Add capabilities for any keys that are enabled */
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for (i = 0; i < ARRAY_SIZE(jack->key); i++) {
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int testbit = SND_JACK_BTN_0 >> i;
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if (!(jack->type & testbit))
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continue;
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if (!jack->key[i])
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jack->key[i] = BTN_0 + i;
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input_set_capability(jack->input_dev, EV_KEY, jack->key[i]);
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}
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err = input_register_device(jack->input_dev);
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if (err == 0)
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jack->registered = 1;
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return err;
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}
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#endif /* CONFIG_SND_JACK_INPUT_DEV */
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static void snd_jack_kctl_private_free(struct snd_kcontrol *kctl)
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{
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struct snd_jack_kctl *jack_kctl;
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jack_kctl = kctl->private_data;
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if (jack_kctl) {
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list_del(&jack_kctl->list);
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kfree(jack_kctl);
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}
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}
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static void snd_jack_kctl_add(struct snd_jack *jack, struct snd_jack_kctl *jack_kctl)
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{
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list_add_tail(&jack_kctl->list, &jack->kctl_list);
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}
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static struct snd_jack_kctl * snd_jack_kctl_new(struct snd_card *card, const char *name, unsigned int mask)
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{
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struct snd_kcontrol *kctl;
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struct snd_jack_kctl *jack_kctl;
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int err;
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kctl = snd_kctl_jack_new(name, card);
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if (!kctl)
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return NULL;
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err = snd_ctl_add(card, kctl);
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if (err < 0)
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return NULL;
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jack_kctl = kzalloc(sizeof(*jack_kctl), GFP_KERNEL);
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if (!jack_kctl)
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goto error;
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jack_kctl->kctl = kctl;
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jack_kctl->mask_bits = mask;
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kctl->private_data = jack_kctl;
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kctl->private_free = snd_jack_kctl_private_free;
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return jack_kctl;
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error:
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snd_ctl_free_one(kctl);
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return NULL;
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}
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/**
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* snd_jack_add_new_kctl - Create a new snd_jack_kctl and add it to jack
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* @jack: the jack instance which the kctl will attaching to
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* @name: the name for the snd_kcontrol object
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* @mask: a bitmask of enum snd_jack_type values that can be detected
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* by this snd_jack_kctl object.
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*
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* Creates a new snd_kcontrol object and adds it to the jack kctl_list.
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*
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* Return: Zero if successful, or a negative error code on failure.
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*/
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int snd_jack_add_new_kctl(struct snd_jack *jack, const char * name, int mask)
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{
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struct snd_jack_kctl *jack_kctl;
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jack_kctl = snd_jack_kctl_new(jack->card, name, mask);
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if (!jack_kctl)
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return -ENOMEM;
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snd_jack_kctl_add(jack, jack_kctl);
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return 0;
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}
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EXPORT_SYMBOL(snd_jack_add_new_kctl);
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/**
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* snd_jack_new - Create a new jack
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* @card: the card instance
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* @id: an identifying string for this jack
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* @type: a bitmask of enum snd_jack_type values that can be detected by
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* this jack
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* @jjack: Used to provide the allocated jack object to the caller.
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* @initial_kctl: if true, create a kcontrol and add it to the jack list.
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* @phantom_jack: Don't create a input device for phantom jacks.
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*
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* Creates a new jack object.
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*
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* Return: Zero if successful, or a negative error code on failure.
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* On success @jjack will be initialised.
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*/
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int snd_jack_new(struct snd_card *card, const char *id, int type,
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struct snd_jack **jjack, bool initial_kctl, bool phantom_jack)
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{
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struct snd_jack *jack;
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struct snd_jack_kctl *jack_kctl = NULL;
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int err;
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static struct snd_device_ops ops = {
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.dev_free = snd_jack_dev_free,
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#ifdef CONFIG_SND_JACK_INPUT_DEV
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.dev_register = snd_jack_dev_register,
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.dev_disconnect = snd_jack_dev_disconnect,
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#endif /* CONFIG_SND_JACK_INPUT_DEV */
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};
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if (initial_kctl) {
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jack_kctl = snd_jack_kctl_new(card, id, type);
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if (!jack_kctl)
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return -ENOMEM;
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}
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jack = kzalloc(sizeof(struct snd_jack), GFP_KERNEL);
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if (jack == NULL)
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return -ENOMEM;
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jack->id = kstrdup(id, GFP_KERNEL);
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if (jack->id == NULL) {
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kfree(jack);
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return -ENOMEM;
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}
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/* don't creat input device for phantom jack */
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if (!phantom_jack) {
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#ifdef CONFIG_SND_JACK_INPUT_DEV
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int i;
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jack->input_dev = input_allocate_device();
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if (jack->input_dev == NULL) {
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err = -ENOMEM;
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goto fail_input;
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}
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jack->input_dev->phys = "ALSA";
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|
|
jack->type = type;
|
|
|
|
for (i = 0; i < ARRAY_SIZE(jack_switch_types); i++)
|
|
if (type & (1 << i))
|
|
input_set_capability(jack->input_dev, EV_SW,
|
|
jack_switch_types[i]);
|
|
|
|
#endif /* CONFIG_SND_JACK_INPUT_DEV */
|
|
}
|
|
|
|
err = snd_device_new(card, SNDRV_DEV_JACK, jack, &ops);
|
|
if (err < 0)
|
|
goto fail_input;
|
|
|
|
jack->card = card;
|
|
INIT_LIST_HEAD(&jack->kctl_list);
|
|
|
|
if (initial_kctl)
|
|
snd_jack_kctl_add(jack, jack_kctl);
|
|
|
|
*jjack = jack;
|
|
|
|
return 0;
|
|
|
|
fail_input:
|
|
#ifdef CONFIG_SND_JACK_INPUT_DEV
|
|
input_free_device(jack->input_dev);
|
|
#endif
|
|
kfree(jack->id);
|
|
kfree(jack);
|
|
return err;
|
|
}
|
|
EXPORT_SYMBOL(snd_jack_new);
|
|
|
|
#ifdef CONFIG_SND_JACK_INPUT_DEV
|
|
/**
|
|
* snd_jack_set_parent - Set the parent device for a jack
|
|
*
|
|
* @jack: The jack to configure
|
|
* @parent: The device to set as parent for the jack.
|
|
*
|
|
* Set the parent for the jack devices in the device tree. This
|
|
* function is only valid prior to registration of the jack. If no
|
|
* parent is configured then the parent device will be the sound card.
|
|
*/
|
|
void snd_jack_set_parent(struct snd_jack *jack, struct device *parent)
|
|
{
|
|
WARN_ON(jack->registered);
|
|
if (!jack->input_dev)
|
|
return;
|
|
|
|
jack->input_dev->dev.parent = parent;
|
|
}
|
|
EXPORT_SYMBOL(snd_jack_set_parent);
|
|
|
|
/**
|
|
* snd_jack_set_key - Set a key mapping on a jack
|
|
*
|
|
* @jack: The jack to configure
|
|
* @type: Jack report type for this key
|
|
* @keytype: Input layer key type to be reported
|
|
*
|
|
* Map a SND_JACK_BTN_* button type to an input layer key, allowing
|
|
* reporting of keys on accessories via the jack abstraction. If no
|
|
* mapping is provided but keys are enabled in the jack type then
|
|
* BTN_n numeric buttons will be reported.
|
|
*
|
|
* If jacks are not reporting via the input API this call will have no
|
|
* effect.
|
|
*
|
|
* Note that this is intended to be use by simple devices with small
|
|
* numbers of keys that can be reported. It is also possible to
|
|
* access the input device directly - devices with complex input
|
|
* capabilities on accessories should consider doing this rather than
|
|
* using this abstraction.
|
|
*
|
|
* This function may only be called prior to registration of the jack.
|
|
*
|
|
* Return: Zero if successful, or a negative error code on failure.
|
|
*/
|
|
int snd_jack_set_key(struct snd_jack *jack, enum snd_jack_types type,
|
|
int keytype)
|
|
{
|
|
int key = fls(SND_JACK_BTN_0) - fls(type);
|
|
|
|
WARN_ON(jack->registered);
|
|
|
|
if (!keytype || key >= ARRAY_SIZE(jack->key))
|
|
return -EINVAL;
|
|
|
|
jack->type |= type;
|
|
jack->key[key] = keytype;
|
|
return 0;
|
|
}
|
|
EXPORT_SYMBOL(snd_jack_set_key);
|
|
#endif /* CONFIG_SND_JACK_INPUT_DEV */
|
|
|
|
/**
|
|
* snd_jack_report - Report the current status of a jack
|
|
*
|
|
* @jack: The jack to report status for
|
|
* @status: The current status of the jack
|
|
*/
|
|
void snd_jack_report(struct snd_jack *jack, int status)
|
|
{
|
|
struct snd_jack_kctl *jack_kctl;
|
|
#ifdef CONFIG_SND_JACK_INPUT_DEV
|
|
int i;
|
|
#endif
|
|
|
|
if (!jack)
|
|
return;
|
|
|
|
list_for_each_entry(jack_kctl, &jack->kctl_list, list)
|
|
snd_kctl_jack_report(jack->card, jack_kctl->kctl,
|
|
status & jack_kctl->mask_bits);
|
|
|
|
#ifdef CONFIG_SND_JACK_INPUT_DEV
|
|
if (!jack->input_dev)
|
|
return;
|
|
|
|
for (i = 0; i < ARRAY_SIZE(jack->key); i++) {
|
|
int testbit = SND_JACK_BTN_0 >> i;
|
|
|
|
if (jack->type & testbit)
|
|
input_report_key(jack->input_dev, jack->key[i],
|
|
status & testbit);
|
|
}
|
|
|
|
for (i = 0; i < ARRAY_SIZE(jack_switch_types); i++) {
|
|
int testbit = 1 << i;
|
|
if (jack->type & testbit)
|
|
input_report_switch(jack->input_dev,
|
|
jack_switch_types[i],
|
|
status & testbit);
|
|
}
|
|
|
|
input_sync(jack->input_dev);
|
|
#endif /* CONFIG_SND_JACK_INPUT_DEV */
|
|
}
|
|
EXPORT_SYMBOL(snd_jack_report);
|