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/linux/drivers/acpi/
H A Dscan.c1 // SPDX-License-Identifier: GPL-2.0-only
3 * scan.c - support for transforming the ACPI namespace into individual objects
19 #include <linux/dma-map-ops.h>
23 #include <linux/dma-direct.h>
34 static const char *dummy_hid = "device";
46 * The UART device described by the SPCR table is the only object which needs
47 * special-casing. Everything else is covered by ACPI namespace paths in STAO
79 hp->notify = notify; in acpi_initialize_hp_context()
80 hp->uevent = uevent; in acpi_initialize_hp_context()
89 return -EINVAL; in acpi_scan_add_handler()
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H A Dutils.c1 // SPDX-License-Identifier: GPL-2.0-or-later
3 * acpi_utils.c - ACPI Utility Functions ($Revision: 10 $)
23 /* --------------------------------------------------------------------------
25 -------------------------------------------------------------------------- */
44 if (!package || (package->type != ACPI_TYPE_PACKAGE) in acpi_extract_package()
45 || (package->package.count < 1)) { in acpi_extract_package()
50 if (!format || !format->pointer || (format->length < 1)) { in acpi_extract_package()
60 format_count = (format->length / sizeof(char)) - 1; in acpi_extract_package()
61 if (format_count > package->package.count) { in acpi_extract_package()
63 format_count, package->package.count); in acpi_extract_package()
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H A Dpci_link.c1 // SPDX-License-Identifier: GPL-2.0-or-later
3 * pci_link.c - ACPI PCI Interrupt Link Device Driver ($Revision: 34 $)
10 * 1. Support more than one IRQ resource entry per link device (index).
12 * for IRQ management (e.g. start()->_SRS).
36 static int acpi_pci_link_add(struct acpi_device *device,
38 static void acpi_pci_link_remove(struct acpi_device *device);
68 struct acpi_device *device; member
75 static int sci_irq = -1, sci_penalty;
77 /* --------------------------------------------------------------------------
78 PCI Link Device Management
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H A Ddock.c1 // SPDX-License-Identifier: GPL-2.0-or-later
3 * dock.c - ACPI dock station driver
31 acpi_handle handle; member
62 * Dock Dependent device functions *
65 * add_dock_dependent_device - associate a device with the dock station
67 * @adev: Dependent ACPI device object.
69 * Add the dependent device to the dock's dependent device list.
78 return -ENOMEM; in add_dock_dependent_device()
80 dd->adev = adev; in add_dock_dependent_device()
81 INIT_LIST_HEAD(&dd->list); in add_dock_dependent_device()
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H A Dacpi_processor.c1 // SPDX-License-Identifier: GPL-2.0-only
3 * acpi_processor.c - ACPI processor enumeration support
16 #include <linux/device.h>
44 return pr->handle; in acpi_get_processor_handle()
56 return -EINVAL; in acpi_processor_errata_piix4()
62 switch (dev->revision) { in acpi_processor_errata_piix4()
64 dev_dbg(&dev->dev, "Found PIIX4 A-step\n"); in acpi_processor_errata_piix4()
67 dev_dbg(&dev->dev, "Found PIIX4 B-step\n"); in acpi_processor_errata_piix4()
70 dev_dbg(&dev->dev, "Found PIIX4E\n"); in acpi_processor_errata_piix4()
73 dev_dbg(&dev->dev, "Found PIIX4M\n"); in acpi_processor_errata_piix4()
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H A Dpower.c1 // SPDX-License-Identifier: GPL-2.0-or-later
3 * drivers/acpi/power.c - ACPI Power Resources management.
5 * Copyright (C) 2001 - 2015 Intel Corp.
12 * ACPI power-managed devices may be controlled in two ways:
13 * 1. via "Device Specific (D-State) Control"
18 * plane, clock plane, or other resource depended on by a device.
20 * A device may rely on multiple power resources, and a power resource
45 struct device *dev;
50 struct acpi_device device; member
68 /* --------------------------------------------------------------------------
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H A Dbus.c1 // SPDX-License-Identifier: GPL-2.0-or-later
3 * acpi_bus.c - ACPI Bus Driver ($Revision: 80 $)
17 #include <linux/device.h>
50 pr_notice("%s detected - force copy of DSDT to local memory\n", id->ident); in set_copy_dsdt()
58 * Invoke DSDT corruption work-around on all Toshiba Satellite.
73 /* --------------------------------------------------------------------------
74 Device Management
75 -------------------------------------------------------------------------- */
77 acpi_status acpi_bus_get_status_handle(acpi_handle handle, in acpi_bus_get_status_handle() argument
82 status = acpi_evaluate_integer(handle, "_STA", NULL, sta); in acpi_bus_get_status_handle()
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H A Dacpi_video.c1 // SPDX-License-Identifier: GPL-2.0-or-later
3 * video.c - ACPI Video Driver
7 * Copyright (C) 2006 Thomas Tuttle <linux-kernel@ttuttle.net>
32 #define ACPI_VIDEO_DEVICE_NAME "Video Device"
52 static int report_key_events = -1;
57 static int hw_changes_brightness = -1;
61 "a hotkey is pressed: -1: auto, 0: normal 1: hw-changes-brightness");
78 static int acpi_video_bus_add(struct acpi_device *device);
79 static void acpi_video_bus_remove(struct acpi_device *device);
80 static void acpi_video_bus_notify(acpi_handle handle, u32 event, void *data);
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H A Ddevice_pm.c1 // SPDX-License-Identifier: GPL-2.0-only
3 * drivers/acpi/device_pm.c - ACPI device power management routines.
27 * acpi_power_state_string - String representation of ACPI device power state.
28 * @state: ACPI device power state to return the string representation of.
48 static int acpi_dev_pm_explicit_get(struct acpi_device *device, int *state) in acpi_dev_pm_explicit_get() argument
53 status = acpi_evaluate_integer(device->handle, "_PSC", NULL, &psc); in acpi_dev_pm_explicit_get()
55 return -ENODEV; in acpi_dev_pm_explicit_get()
62 * acpi_device_get_power - Get power state of an ACPI device.
63 * @device: Device to get the power state of.
64 * @state: Place to store the power state of the device.
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H A Dpci_root.c1 // SPDX-License-Identifier: GPL-2.0-or-later
3 * pci_root.c - ACPI PCI Root Bridge Driver ($Revision: 40 $)
19 #include <linux/pci-acpi.h>
29 static int acpi_pci_root_add(struct acpi_device *device,
31 static void acpi_pci_root_remove(struct acpi_device *device);
60 * acpi_is_root_bridge - determine whether an ACPI CA node is a PCI root bridge
61 * @handle: the ACPI CA node in question.
66 int acpi_is_root_bridge(acpi_handle handle) in acpi_is_root_bridge() argument
68 struct acpi_device *device = acpi_fetch_acpi_dev(handle); in acpi_is_root_bridge() local
71 if (!device) in acpi_is_root_bridge()
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/linux/drivers/firmware/
H A Dti_sci.c1 // SPDX-License-Identifier: GPL-2.0
5 * Copyright (C) 2015-2022 Texas Instruments Incorporated - https://www.ti.com/
25 #include <linux/soc/ti/ti-msgmgr.h>
37 * struct ti_sci_xfer - Structure representing a message flow
41 * Since we work with request-ACK protocol, we can
54 * struct ti_sci_xfers_info - Structure to manage transfer information
72 * struct ti_sci_desc - Description of SoC integration
87 * struct ti_sci_info - Structure representing a TI SCI instance
88 * @dev: Device pointer
94 * @handle: Instance of TI SCI handle to send to clients.
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/linux/include/linux/soc/ti/
H A Dti_sci_protocol.h1 // SPDX-License-Identifier: GPL-2.0
5 * Copyright (C) 2015-2016 Texas Instruments Incorporated - https://www.ti.com/
13 * struct ti_sci_version_info - version information structure
31 * struct ti_sci_core_ops - SoC Core Operations
37 int (*reboot_device)(const struct ti_sci_handle *handle);
41 * struct ti_sci_dev_ops - Device control operations
42 * @get_device: Command to request for device managed by TISCI
45 * @idle_device: Command to idle a device managed by TISCI
48 * @put_device: Command to release a device managed by TISCI
51 * @is_valid: Check if the device ID is a valid ID.
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/linux/drivers/platform/x86/intel/
H A Dhid.c1 // SPDX-License-Identifier: GPL-2.0+
12 #include <linux/input/sparse-keymap.h>
21 TABLET_SW_AUTO = -1,
31 "If you need this please report this to: platform-driver-x86@vger.kernel.org");
36 "Enable SW_TABLET_MODE reporting -1:auto 0:off 1:at-first-event 2:at-probe. "
37 "If you need this please report this to: platform-driver-x86@vger.kernel.org");
62 /* 1: LSuper (Page 0x07, usage 0xE3) -- unclear what to do */
63 /* 2: Toggle SW_ROTATE_LOCK -- easy to implement if seen in wild */
72 /* 13 has two different meanings in the spec -- ignore it. */
80 /* 27: wake -- needs special handling */
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/linux/drivers/iommu/
H A Diommu-sva.c1 // SPDX-License-Identifier: GPL-2.0
10 #include "iommu-priv.h"
13 static struct iommu_domain *iommu_sva_domain_alloc(struct device *dev,
17 static struct iommu_mm_data *iommu_alloc_mm_data(struct mm_struct *mm, struct device *dev) in iommu_alloc_mm_data()
25 return ERR_PTR(-EBUSY); in iommu_alloc_mm_data()
27 iommu_mm = mm->iommu_mm; in iommu_alloc_mm_data()
30 if (iommu_mm->pasid >= dev->iommu->max_pasids) in iommu_alloc_mm_data()
31 return ERR_PTR(-EOVERFLOW); in iommu_alloc_mm_data()
37 return ERR_PTR(-ENOMEM); in iommu_alloc_mm_data()
42 return ERR_PTR(-ENOSPC); in iommu_alloc_mm_data()
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/linux/drivers/scsi/mpt3sas/
H A Dmpt3sas_scsih.c5 * Copyright (C) 2012-2014 LSI Corporation
6 * Copyright (C) 2013-2014 Avago Technologies
7 * (mailto: MPT-FusionLinux.pdl@avagotech.com)
22 * LIMITATION, ANY WARRANTIES OR CONDITIONS OF TITLE, NON-INFRINGEMENT,
41 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
56 #include <linux/blk-mq-pci.h>
72 static int _scsih_add_device(struct MPT3SAS_ADAPTER *ioc, u16 handle,
74 static int _scsih_pcie_add_device(struct MPT3SAS_ADAPTER *ioc, u16 handle);
78 _scsih_pcie_check_device(struct MPT3SAS_ADAPTER *ioc, u16 handle);
94 static u8 scsi_io_cb_idx = -1;
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/linux/drivers/platform/x86/
H A Dtoshiba_bluetooth.c1 // SPDX-License-Identifier: GPL-2.0-only
9 * normal people aren't meant to understand :-)
38 static int toshiba_bt_rfkill_add(struct acpi_device *device);
39 static void toshiba_bt_rfkill_remove(struct acpi_device *device);
40 static void toshiba_bt_rfkill_notify(struct acpi_device *device, u32 event);
49 static int toshiba_bt_resume(struct device *dev);
65 static int toshiba_bluetooth_present(acpi_handle handle) in toshiba_bluetooth_present() argument
71 * Some Toshiba laptops may have a fake TOS6205 device in in toshiba_bluetooth_present()
75 result = acpi_evaluate_integer(handle, "_STA", NULL, &bt_present); in toshiba_bluetooth_present()
78 return -ENXIO; in toshiba_bluetooth_present()
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H A Dtoshiba_haps.c1 // SPDX-License-Identifier: GPL-2.0-or-later
29 static int toshiba_haps_reset_protection(acpi_handle handle) in toshiba_haps_reset_protection() argument
33 status = acpi_evaluate_object(handle, "RSSS", NULL, NULL); in toshiba_haps_reset_protection()
36 return -EIO; in toshiba_haps_reset_protection()
42 static int toshiba_haps_protection_level(acpi_handle handle, int level) in toshiba_haps_protection_level() argument
46 status = acpi_execute_simple_method(handle, "PTLV", level); in toshiba_haps_protection_level()
49 return -EIO; in toshiba_haps_protection_level()
58 static ssize_t protection_level_show(struct device *dev, in protection_level_show()
63 return sprintf(buf, "%i\n", haps->protection_level); in protection_level_show()
66 static ssize_t protection_level_store(struct device *dev, in protection_level_store()
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H A Dasus-laptop.c1 // SPDX-License-Identifier: GPL-2.0-or-later
3 * asus-laptop.c - Asus Laptop Support
5 * Copyright (C) 2002-2005 Julien Lerouge, 2003-2006 Karol Kozimor
6 * Copyright (C) 2006-2007 Corentin Chary
13 * Pontus Fuchs - Helper functions, cleanup
14 * Johann Wiesner - Small compile fixes
15 * John Belmonte - ACPI code for Toshiba laptop was a good starting point.
16 * Eric Burghard - LED display support for W1N
17 * Josh Green - Light Sens support
18 * Thomas Tuttle - His first patch for led support was very helpful
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/linux/include/acpi/
H A Dacpi_bus.h1 /* SPDX-License-Identifier: GPL-2.0-or-later */
3 * acpi_bus.h - ACPI Bus Driver ($Revision: 22 $)
14 #include <linux/device.h>
30 acpi_evaluate_integer(acpi_handle handle,
33 bool acpi_evaluate_reference(acpi_handle handle, acpi_string pathname,
43 acpi_evaluate_ost(acpi_handle handle, u32 source_event, u32 status_code,
47 acpi_get_physical_device_location(acpi_handle handle, struct acpi_pld_info **pld);
49 bool acpi_has_method(acpi_handle handle, char *name);
50 acpi_status acpi_execute_simple_method(acpi_handle handle, char *method,
52 acpi_status acpi_evaluate_ej0(acpi_handle handle);
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/linux/include/uapi/drm/
H A Dqaic_accel.h1 /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note
3 * Copyright (c) 2019-2020, The Linux Foundation. All rights reserved.
4 * Copyright (c) 2021-2023 Qualcomm Innovation Center, Inc. All rights reserved.
55 * struct qaic_manage_trans_hdr - Header for a transaction in a manage message.
65 * struct qaic_manage_trans_passthrough - Defines a passthrough transaction.
68 * encode in little endian and align/pad to 64-bit.
76 * struct qaic_manage_trans_dma_xfer - Defines a DMA transfer transaction.
81 * @addr: In. Address of the data to DMA to the device.
82 * @size: In. Length of the data to DMA to the device.
93 * struct qaic_manage_trans_activate_to_dev - Defines an activate request.
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/linux/drivers/input/
H A Dinput.c1 // SPDX-License-Identifier: GPL-2.0-only
5 * Copyright (c) 1999-2002 Vojtech Pavlik
24 #include <linux/device.h>
28 #include "input-compat.h"
29 #include "input-core-private.h"
30 #include "input-poller.h"
73 if (value > old_val - fuzz / 2 && value < old_val + fuzz / 2) in input_defuzz_abs_event()
76 if (value > old_val - fuzz && value < old_val + fuzz) in input_defuzz_abs_event()
79 if (value > old_val - fuzz * 2 && value < old_val + fuzz * 2) in input_defuzz_abs_event()
88 if (test_bit(EV_REP, dev->evbit) && in input_start_autorepeat()
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/linux/tools/testing/selftests/tc-testing/
H A Dtdc_batch.py4 tdc_batch.py - a script to generate TC batch file
12 parser.add_argument("device", help="device name")
14 parser.add_argument("-n", "--number", type=int,
17 "-a",
18 "--handle_start",
21 help="start handle range from (default: 1)")
22 parser.add_argument("-o", "--skip_sw",
25 parser.add_argument("-s", "--share_action",
28 parser.add_argument("-p", "--prio",
32 "-e",
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/linux/include/linux/platform_data/
H A Dmlxreg.h1 /* SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0 */
3 * Copyright (C) 2017-2020 Mellanox Technologies Ltd.
14 * enum mlxreg_wdt_type - type of HW watchdog
28 * enum mlxreg_hotplug_kind - kind of hotplug entry
36 * after hardware-firmware synchronization handshake;
57 * enum mlxreg_hotplug_device_action - hotplug device action required for
60 * @MLXREG_HOTPLUG_DEVICE_DEFAULT_ACTION: probe device for 'on' event, remove
62 * @MLXREG_HOTPLUG_DEVICE_PLATFORM_ACTION: probe platform device for 'on'
73 * struct mlxreg_core_hotplug_notifier - hotplug notifier block:
76 * @handle: user handle to be passed by user handler function;
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/linux/Documentation/power/
H A Dpm_qos_interface.rst11 * The per-device PM QoS framework provides the API to manage the
12 per-device latency constraints and PM QoS flags.
31 void cpu_latency_qos_add_request(handle, target_value):
35 Clients of PM QoS need to save the returned handle for future use in other
38 void cpu_latency_qos_update_request(handle, new_target_value):
39 Will update the list element pointed to by the handle with the new target
43 void cpu_latency_qos_remove_request(handle):
51 int cpu_latency_qos_request_active(handle):
65 The infrastructure exposes one device node, /dev/cpu_dma_latency, for the CPU
75 As long as the device node is held open that process has a registered
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/linux/drivers/pnp/pnpacpi/
H A Dcore.c1 // SPDX-License-Identifier: GPL-2.0-or-later
3 * pnpacpi -- PnP ACPI driver
21 * Compatible Device IDs
45 pnp_dbg(&dev->dev, "get resources\n"); in pnpacpi_get_resources()
52 acpi_handle handle; in pnpacpi_set_resources() local
55 pnp_dbg(&dev->dev, "set resources\n"); in pnpacpi_set_resources()
57 acpi_dev = ACPI_COMPANION(&dev->dev); in pnpacpi_set_resources()
59 dev_dbg(&dev->dev, "ACPI device not found in %s!\n", __func__); in pnpacpi_set_resources()
60 return -ENODEV; in pnpacpi_set_resources()
63 if (WARN_ON_ONCE(acpi_dev != dev->data)) in pnpacpi_set_resources()
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