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/openbmc/linux/Documentation/devicetree/bindings/usb/
H A Dusb251xb.yaml1 # SPDX-License-Identifier: GPL-2.0
3 ---
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: Microchip USB 2.0 Hi-Speed Hub Controller
10 - Richard Leitner <richard.leitner@skidata.com>
15 - microchip,usb2422
16 - microchip,usb2512b
17 - microchip,usb2512bi
18 - microchip,usb2513b
19 - microchip,usb2513bi
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/openbmc/phosphor-power/phosphor-regulators/src/
H A Dmanager.hpp8 * http://www.apache.org/licenses/LICENSE-2.0
23 #include <sdbusplus/bus.hpp>
56 * @param bus the D-Bus bus
59 Manager(sdbusplus::bus_t& bus, const sdeventplus::Event& event);
62 * Implements the D-Bus "configure" method.
66 * This method should be called when the system is being powered on. It
72 * Implements the D-Bus "monitor" method.
77 * - regulator sensors will be read and published on D-Bus
78 * - phase fault detection will be performed
80 * Regulator monitoring should be enabled when the system is being powered
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H A Ddbus_sensor.hpp8 * http://www.apache.org/licenses/LICENSE-2.0
20 #include <sdbusplus/bus.hpp>
65 * the necessary D-Bus interfaces via templates/multiple inheritance.
73 * valid sensor Unit values on D-Bus.
78 * Define simple name for the tuple used to create D-Bus associations.
90 * This class represents a voltage regulator sensor on D-Bus.
99 // Specify which compiler-generated methods we want
112 * @param bus D-Bus bus object
117 * @param deviceInventoryPath D-Bus inventory path of the voltage regulator
119 * @param chassisInventoryPath D-Bus inventory path of the chassis that
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H A Dmanager.cpp8 * http://www.apache.org/licenses/LICENSE-2.0
54 * implement the D-Bus compatible interface.
62 const fs::path standardConfigFileDir{"/usr/share/phosphor-regulators"};
68 const fs::path testConfigFileDir{"/etc/phosphor-regulators"};
70 Manager::Manager(sdbusplus::bus_t& bus, const sdeventplus::Event& event) : in Manager() argument
71 ManagerObject{bus, managerObjPath}, bus{bus}, eventLoop{event}, in Manager()
72 services{bus},
79 bus, std::bind_front(&Manager::compatibleSystemTypesFound, this));
87 // Obtain D-Bus service name
88 bus.request_name(busName);
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/openbmc/linux/Documentation/w1/slaves/
H A Dw1_therm.rst16 -----------
42 A bulk read of all devices on the bus could be done writing ``trigger``
44 send the convert command to all devices on the bus, and if parasite
45 powered devices are detected on the bus (and strong pullup is enabled
47 time required by parasited powered device on the line. Reading
49 -1 if at least one sensor still in conversion, 1 if conversion is complete
72 the sensor. Resolution is reset when the sensor gets power-cycled.
81 Some non-genuine DS18B20 chips are fixed in 12-bit mode only, so the actual
86 The write-only sysfs entry ``eeprom_cmd`` is an alternative for EEPROM operations.
91 ``0`` if the device is parasite powered, ``1`` if the device is externally powered.
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/openbmc/phosphor-buttons/inc/
H A Dhost_then_chassis_poweroff.hpp4 #include <sdbusplus/bus/match.hpp>
20 * - A button press will power on as long as the BMC is
24 * - A button press less than 4s won't do anything.
25 * - At 4s, issue a host power off and start a 10s timer.
26 * - If the button is released within that 10s and not pressed
28 * - If the button is released within that 10s and also
31 * - If the button is pressed throughout that 10s
49 * @param[in] bus - The sdbusplus bus object
51 explicit HostThenChassisPowerOff(sdbusplus::bus_t& bus) : in HostThenChassisPowerOff() argument
52 PowerButtonProfile(bus), state(PowerOpState::buttonNotPressed), in HostThenChassisPowerOff()
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H A Dbutton_handler.hpp6 #include <sdbusplus/bus.hpp>
7 #include <sdbusplus/bus/match.hpp>
45 * There are 3 buttons supported - Power, ID, and Reset.
47 * check for that button on D-Bus before listening for its signals.
62 * @param[in] bus - sdbusplus connection object
64 explicit Handler(sdbusplus::bus_t& bus);
72 * @param[in] msg - sdbusplus message from signal
81 * @param[in] msg - sdbusplus message from signal
88 * Reboots the host if it is powered on.
90 * @param[in] msg - sdbusplus message from signal
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/openbmc/phosphor-power/phosphor-power-sequencer/docs/
H A DREADME.md1 # phosphor-power-sequencer
5 The phosphor-power-sequencer application powers the chassis on/off and monitors
14 The application is a single-threaded C++ executable. It is a 'daemon' process
16 reaches the Ready state and before the chassis is powered on.
18 The application is driven by an optional, system-specific JSON configuration
30 - UCD90160
31 - UCD90320
33 Additional device types can be supported by creating a new sub-class within the
38 - A BMC application or script sets the `state` property to 1 on the
39 `org.openbmc.control.Power` D-Bus interface.
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/openbmc/linux/Documentation/firmware-guide/acpi/
H A Dnon-d0-probe.rst1 .. SPDX-License-Identifier: GPL-2.0
10 In some cases it may be preferred to leave certain devices powered off for the
19 probe. The support for _DSC requires support from the kernel bus type if the
20 bus driver normally sets the device in D0 state for probe.
22 The downside of using _DSC is that as the device is not powered on, even if
28 ---
33 the device will not be powered on (put in D0 state) for probe.
36 --------
41 .. code-block:: text
44 0 D0 Device fully powered on
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/openbmc/linux/drivers/usb/core/
H A Dgeneric.c1 // SPDX-License-Identifier: GPL-2.0
3 * drivers/usb/core/generic.c - generic driver for USB devices (not interfaces)
5 * (C) Copyright 2005 Greg Kroah-Hartman <gregkh@suse.de>
9 * (C) Copyright Johannes Erdfelt 1999-2001
14 * (C) Copyright David Brownell 2000-2004
17 * (C) Copyright Greg Kroah-Hartman 2002-2003
34 return desc->bInterfaceClass == USB_CLASS_COMM in is_rndis()
35 && desc->bInterfaceSubClass == 2 in is_rndis()
36 && desc->bInterfaceProtocol == 0xff; in is_rndis()
41 return desc->bInterfaceClass == USB_CLASS_MISC in is_activesync()
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/openbmc/linux/Documentation/userspace-api/media/dvb/
H A Dfe-diseqc-reset-overload.rst1 .. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
13 FE_DISEQC_RESET_OVERLOAD - Restores the power to the antenna subsystem, if it was powered off due -…
31 If the bus has been automatically powered off due to power overload,
32 this ioctl call restores the power to the bus. The call requires
34 is manually powered off. Not all Digital TV adapters support this ioctl.
41 On error -1 is returned, and the ``errno`` variable is set
45 :ref:`Generic Error Codes <gen-errors>` chapter.
/openbmc/phosphor-fan-presence/control/json/actions/
H A Dpcie_card_floors.hpp8 * http://www.apache.org/licenses/LICENSE-2.0
33 * @class PCIeCardFloors - Action to set the PCIe card floor index parameter
36 * - Loads PCIe card metadata files using the PCIeCardMetadata class.
37 * - Watches for PCIe slots to be powered on (or off).
38 * - Reads four properties off of the PCIeDevice interface on the powered
40 * - Looks up the floor index for the card by calling PCIeCardMetadata::lookup
42 * - Sets the pcie_floor_index parameter with the highest floor index found.
43 * - If no PCIe cards are found, it removes the parameter.
44 * - If a card isn't recognized, it's ignored since it isn't considered a
46 * - If a powered on card has its own temperature sensor, then it doesn't
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/openbmc/linux/Documentation/ABI/testing/
H A Dsysfs-bus-usb-devices-usbsevseg1 What: /sys/bus/usb/.../powered
5 Description: Controls whether the device's display will powered.
6 A value of 0 is off and a non-zero value is on.
8 What: /sys/bus/usb/.../mode_msb
9 What: /sys/bus/usb/.../mode_lsb
22 What: /sys/bus/usb/.../textmode
28 hex: each character is between 0-15
29 ascii: each character is between '0'-'9' and 'A'-'F'.
31 What: /sys/bus/usb/.../text
37 What: /sys/bus/usb/.../decimals
H A Dsysfs-driver-w1_therm1 What: /sys/bus/w1/devices/.../alarms
7 (typical -55 degC to 125 degC), if not values will be trimmed
11 master level, refer to Documentation/w1/w1-generic.rst for
17 What: /sys/bus/w1/devices/.../eeprom_cmd
33 What: /sys/bus/w1/devices/.../ext_power
39 * '0': device parasite powered
40 * '1': device externally powered
41 * '-xx': xx is kernel error when reading power status
47 What: /sys/bus/w1/devices/.../resolution
55 values after power-on. Read or write are :
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/openbmc/linux/drivers/pci/hotplug/
H A Drpaphp_pci.c1 // SPDX-License-Identifier: GPL-2.0+
3 * PCI Hot Plug Controller Driver for RPA-compliant PPC64 platform.
15 #include <asm/pci-bridge.h>
23 * RTAS call get-sensor-state(DR_ENTITY_SENSE) return values as per PAPR:
24 * -- generic return codes ---
25 * -1: Hardware Error
26 * -2: RTAS_BUSY
27 * -3: Invalid sensor. RTAS Parameter Error.
28 * -- rtas_get_sensor function specific return codes ---
29 * -9000: Need DR entity to be powered up and unisolated before RTAS call
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/openbmc/linux/Documentation/devicetree/bindings/sound/
H A Dti,tlv320aic3x.yaml1 # SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
4 ---
6 $schema: http://devicetree.org/meta-schemas/core.yaml#
11 TLV320AIC3x are a series of low-power stereo audio codecs with stereo
13 single-ended or fully differential configurations.
15 The serial control bus supports SPI or I2C protocols, while the serial audio
16 data bus is programmable for I2S, left/right-justified, DSP, or TDM modes.
44 - Jai Luthra <j-luthra@ti.com>
49 - ti,tlv320aic3x
50 - ti,tlv320aic33
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/openbmc/linux/drivers/hwmon/
H A Dsfctemp.c1 // SPDX-License-Identifier: GPL-2.0
19 * TempSensor reset. The RSTN can be de-asserted once the analog core has
20 * powered up. Trst(min 100ns)
21 * 0:reset 1:de-assert
26 * TempSensor analog core power down. The analog core will be powered up
27 * Tpu(min 50us) after PD is de-asserted. RSTN should be held low until the
28 * analog core is powered up.
41 * Temp(C)=DOUT*Y/4094 - K
64 /* make sure we're powered down first */ in sfctemp_power_up()
65 writel(SFCTEMP_PD, sfctemp->regs); in sfctemp_power_up()
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/openbmc/smbios-mdr/include/
H A Dcpuinfo_utils.hpp7 // http://www.apache.org/licenses/LICENSE-2.0
30 /** Host CPU is powered off. */
32 /** Host CPU is powered on, but BIOS has not completed POST. */
38 /** Current host state - initialized to "off" */
42 * Register D-Bus match handlers to keep hostState current. The D-Bus logic is
46 * @param[in] conn D-Bus ASIO connection.
65 * @tparam Dest Destination type - mostly useful to avoid an extra static_cast
70 * @param loBit 0-based index of the least significant bit to return.
71 * @param hiBit 0-based index of the most significant bit to return.
79 d &= (1ull << (hiBit - loBit + 1)) - 1; in mask()
/openbmc/linux/Documentation/trace/coresight/
H A Dcoresight-ect.rst1 .. SPDX-License-Identifier: GPL-2.0
11 --------------------
21 0 C 0----------->: : +======>(other CTI channel IO)
22 0 P 0<-----------: : v
24 0000000 : CTI :<=========>*CTM*<====>: CTI :---+
25 ####### in_trigs : : (id 0-3) ***** ::::::: v
26 # ETM #----------->: : ^ #######
27 # #<-----------: : +---# ETR #
50 The hardware trigger signals can also be connected to non-CoreSight devices
60 ---------------------------
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/openbmc/phosphor-power/phosphor-regulators/docs/
H A Ddesign.md3 This document describes the high-level design of the `phosphor-regulators`
6 The low-level design is documented using doxygen comments in the source files.
13 The `phosphor-regulators` application is a single-threaded C++ executable. It is
15 when the BMC reaches the Ready state and before the chassis is powered on.
17 The application is driven by a system-specific JSON configuration file. The JSON
24 - Manager
25 - Top level class created in `main()`.
26 - Loads the JSON configuration file.
27 - Implements the D-Bus `configure` and `monitor` methods.
28 - Contains a System object.
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/openbmc/linux/Documentation/ABI/obsolete/
H A Dsysfs-driver-hid-roccat-kovaplus1 What: /sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/<hid-bus>:<vendor-id>:<p…
4 Description: The integer value of this attribute ranges from 1-4.
11 What: /sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/<hid-bus>:<vendor-id>:<p…
14 Description: The integer value of this attribute ranges from 0-4.
18 The profile that's active when powered down is the same that's
19 active when the mouse is powered on.
22 What: /sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/<hid-bus>:<vendor-id>:<p…
25 Description: The integer value of this attribute ranges from 1-10.
32 What: /sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/<hid-bus>:<vendor-id>:<p…
35 Description: The integer value of this attribute ranges from 1-10.
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/openbmc/linux/drivers/soundwire/
H A Dintel_bus_common.c1 // SPDX-License-Identifier: (GPL-2.0-only OR BSD-3-Clause)
2 // Copyright(c) 2015-2023 Intel Corporation. All rights reserved.
9 #include "bus.h"
14 struct device *dev = sdw->cdns.dev; in intel_start_bus()
15 struct sdw_cdns *cdns = &sdw->cdns; in intel_start_bus()
16 struct sdw_bus *bus = &cdns->bus; in intel_start_bus() local
23 if (bus->multi_link) in intel_start_bus()
34 if (bus->multi_link) { in intel_start_bus()
56 dev_err(dev, "%s: unable to exit bus reset sequence: %d\n", __func__, ret); in intel_start_bus()
63 schedule_delayed_work(&cdns->attach_dwork, in intel_start_bus()
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/openbmc/phosphor-power/phosphor-regulators/docs/config_file/
H A Dpmbus_read_sensor.md16 | :--------------- | :--------------------- |
29 - Some regulators only support a subset of these sensor types.
30 - Some of these sensor types are not part of the PMBus specification and must be
31 obtained by reading from manufacturer-specific commands.
38 …-------- | :--------------------------------------------------------------------------------------…
39 …nput voltage, and temperature. Two byte value with an 11-bit, two's complement mantissa and a 5-bi…
40 | linear_16 | Linear data format used for values related to voltage output. Two byte (16-bit), unsi…
53 ### D-Bus Sensor
56 [D-Bus sensor object](https://github.com/openbmc/docs/blob/master/architecture/sensor-architecture.…
60 D-Bus sensors have an object path with the following format:
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/openbmc/phosphor-power/phosphor-power-supply/test/
H A Dpower_supply_tests.cpp24 static auto PSUGPIOLineName = "presence-ps0";
129 * @param[in] invpath - String for inventory path to use in TEST_F()
130 * @param[in] i2cbus - The bus number this power supply is on in TEST_F()
131 * @param[in] i2caddr - The 16-bit I2C address of the power supply in TEST_F()
132 * @param[in] gpioLineName - The string for the gpio-line-name to read for in TEST_F()
134 * @param[in] bindDelay - Time in milliseconds to delay binding the device in TEST_F()
137 auto bus = sdbusplus::bus::new_default(); in TEST_F() local
142 auto psu = std::make_unique<PowerSupply>(bus, "", 3, 0x68, "ibm-cffps", in TEST_F()
160 auto psu = std::make_unique<PowerSupply>(bus, PSUInventoryPath, 3, 0x68, in TEST_F()
161 "ibm-cffps", "", isPowerOn); in TEST_F()
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/openbmc/linux/Documentation/devicetree/bindings/bus/
H A Drenesas,bsc.yaml2 ---
3 $id: http://devicetree.org/schemas/bus/renesas,bsc.yaml#
4 $schema: http://devicetree.org/meta-schemas/core.yaml#
6 title: Renesas Bus State Controller (BSC)
9 - Geert Uytterhoeven <geert+renesas@glider.be>
12 The Renesas Bus State Controller (BSC, sometimes called "LBSC within Bus
13 Bridge", or "External Bus Interface") can be found in several Renesas ARM
14 SoCs. It provides an external bus for connecting multiple external
18 While the BSC is a fairly simple memory-mapped bus, it may be part of a
21 must be powered on, and the functional clock driving the BSC must be
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