| /Linux-v5.15/Documentation/driver-api/media/ |
| D | v4l2-subdev.rst | 1 .. SPDX-License-Identifier: GPL-2.0
3 V4L2 sub-devices
4 ----------------
6 Many drivers need to communicate with sub-devices. These devices can do all
8 encoding or decoding. For webcams common sub-devices are sensors and camera
12 driver with a consistent interface to these sub-devices the
13 :c:type:`v4l2_subdev` struct (v4l2-subdev.h) was created.
15 Each sub-device driver must have a :c:type:`v4l2_subdev` struct. This struct
16 can be stand-alone for simple sub-devices or it might be embedded in a larger
18 low-level device struct (e.g. ``i2c_client``) that contains the device data as
[all …]
|
| /Linux-v5.15/include/media/ |
| D | v4l2-async.h | 1 /* SPDX-License-Identifier: GPL-2.0-only */
5 * Copyright (C) 2012-2013, Guennadi Liakhovetski <g.liakhovetski@gmx.de>
22 * enum v4l2_async_match_type - type of asynchronous subdevice logic to be used
28 * This enum is used by the asynchronous sub-device logic to define the
37 * struct v4l2_async_subdev - sub-device descriptor, as known to a bridge
40 * @match: union of per-bus type matching data sets
57 * probed, to a notifier->waiting list
73 /* v4l2-async core private: not to be used by drivers */
79 * struct v4l2_async_notifier_operations - Asynchronous V4L2 notifier operations
96 * struct v4l2_async_notifier - v4l2_device notifier data
[all …]
|
| D | v4l2-device.h | 1 /* SPDX-License-Identifier: GPL-2.0-or-later */
12 #include <media/media-device.h>
13 #include <media/v4l2-subdev.h>
14 #include <media/v4l2-dev.h>
21 * struct v4l2_device - main struct to for V4L2 device drivers
29 * @notify: notify operation called by some sub-devices.
33 * @release: Release function that is called when the ref count
37 * either stand-alone or embedded in a larger struct.
39 * It allows easy access to sub-devices (see v4l2-subdev.h) and provides
40 * basic V4L2 device-level support.
[all …]
|
| D | v4l2-fwnode.h | 1 /* SPDX-License-Identifier: GPL-2.0-only */
8 * Copyright (C) 2012 - 2013 Samsung Electronics Co., Ltd.
22 #include <media/v4l2-mediabus.h>
31 * struct v4l2_fwnode_bus_mipi_csi2 - MIPI CSI-2 bus data structure
48 * struct v4l2_fwnode_bus_parallel - parallel data bus data structure
60 * struct v4l2_fwnode_bus_mipi_csi1 - CSI-1/CCP2 data bus structure
62 * false - not inverted, true - inverted
63 * @strobe: false - data/clock, true - data/strobe
78 * struct v4l2_fwnode_endpoint - the endpoint data structure
112 * V4L2_FWNODE_PROPERTY_UNSET - identify a non initialized property
[all …]
|
| D | v4l2-flash-led-class.h | 1 /* SPDX-License-Identifier: GPL-2.0-only */
3 * V4L2 flash LED sub-device registration helpers.
12 #include <media/v4l2-ctrls.h>
13 #include <media/v4l2-subdev.h>
21 * struct v4l2_flash_ctrl_data - flash control initialization data, filled
34 * struct v4l2_flash_ops - V4L2 flash operations
53 * struct v4l2_flash_config - V4L2 Flash sub-device initialization data
56 * @intensity: non-flash strobe constraints for the LED
60 * <linux/led-class-flash.h>
71 * struct v4l2_flash - Flash sub-device context
[all …]
|
| /Linux-v5.15/sound/soc/uniphier/ |
| D | aio-core.c | 1 // SPDX-License-Identifier: GPL-2.0
5 // Copyright (c) 2016-2018 Socionext Inc.
17 #include "aio-reg.h"
22 return wr - rd; in rb_cnt()
24 return len - (rd - wr); in rb_cnt()
30 return wr - rd; in rb_cnt_to_end()
32 return len - rd; in rb_cnt_to_end()
38 return len - (wr - rd) - 8; in rb_space()
40 return rd - wr - 8; in rb_space()
46 return rd - wr - 8; in rb_space_to_end()
[all …]
|
| D | aio-dma.c | 1 // SPDX-License-Identifier: GPL-2.0
5 // Copyright (c) 2016-2018 Socionext Inc.
7 #include <linux/dma-mapping.h>
28 static void aiodma_pcm_irq(struct uniphier_aio_sub *sub) in aiodma_pcm_irq() argument
30 struct snd_pcm_runtime *runtime = sub->substream->runtime; in aiodma_pcm_irq()
31 int bytes = runtime->period_size * in aiodma_pcm_irq()
32 runtime->channels * samples_to_bytes(runtime, 1); in aiodma_pcm_irq()
35 spin_lock(&sub->lock); in aiodma_pcm_irq()
36 ret = aiodma_rb_set_threshold(sub, runtime->dma_bytes, in aiodma_pcm_irq()
37 sub->threshold + bytes); in aiodma_pcm_irq()
[all …]
|
| /Linux-v5.15/Documentation/filesystems/ |
| D | relay.rst | 1 .. SPDX-License-Identifier: GPL-2.0
9 to userspace via user-defined 'relay channels'.
11 A 'relay channel' is a kernel->user data relay mechanism implemented
12 as a set of per-cpu kernel buffers ('channel buffers'), each
25 filtering - this also is left to the kernel client. The purpose is to
29 details of the function parameters are documented along with the
30 functions in the relay interface code - please see that for details.
36 sub-buffers. Messages are written to the first sub-buffer until it is
38 the next (if available). Messages are never split across sub-buffers.
40 sub-buffer, while the kernel continues writing to the next.
[all …]
|
| /Linux-v5.15/include/linux/mfd/ |
| D | dln2.h | 1 /* SPDX-License-Identifier: GPL-2.0 */
8 u16 handle; /* sub-driver handle (internally used only) */
13 * dln2_event_cb_t - event callback function signature
15 * @pdev - the sub-device that registered this callback
16 * @echo - the echo header field received in the message
17 * @data - the data payload
18 * @len - the data payload length
20 * The callback function is called in interrupt context and the data payload is
29 * dl2n_register_event_cb - register a callback function for an event
31 * @pdev - the sub-device that registers the callback
[all …]
|
| /Linux-v5.15/Documentation/leds/ |
| D | leds-class-flash.rst | 5 Some LED devices provide two modes - torch and flash. In the LED subsystem
6 those modes are supported by LED class (see Documentation/leds/leds-class.rst)
13 registered in the LED subsystem with led_classdev_flash_register function.
16 (see Documentation/ABI/testing/sysfs-class-led-flash)
18 - flash_brightness
19 - max_flash_brightness
20 - flash_timeout
21 - max_flash_timeout
22 - flash_strobe
23 - flash_fault
[all …]
|
| /Linux-v5.15/arch/sparc/kernel/ |
| D | helpers.S | 1 /* SPDX-License-Identifier: GPL-2.0-only */
4 .type __flushw_user,#function
9 1: save %sp, -128, %sp
13 1: sub %g2, 1, %g2
18 .size __flushw_user,.-__flushw_user
27 .type stack_trace_flush,#function
34 sub %g1, 1, %g3
37 sub %g2, 1, %g2
42 sub %g3, 1, %g3
49 .size stack_trace_flush,.-stack_trace_flush
[all …]
|
| /Linux-v5.15/scripts/ |
| D | kernel-doc | 2 # SPDX-License-Identifier: GPL-2.0
10 ## Copyright (C) 2005-2012 Randy Dunlap ##
19 # 18/01/2001 - Cleanups
22 # -- huggie@earth.li
24 # 27/06/2001 - Allowed whitespace after initial "/**" and
25 # allowed comments before function declarations.
26 # -- Christian Kreibich <ck@whoop.org>
29 # - add perldoc documentation
30 # - Look more closely at some of the scarier bits :)
32 # 26/05/2001 - Support for separate source and object trees.
[all …]
|
| D | generate_initcall_order.pl | 2 # SPDX-License-Identifier: GPL-2.0
18 my $jobs = {}; # child process pid -> file handle
20 my $results = {}; # object index -> [ { level, secname }, ... ]
24 sub get_online_processors {
39 sub write_results {
45 my $level = $initcalls->{$counter}->{'level'};
47 # section name for the initcall function
48 my $secname = $initcalls->{$counter}->{'module'} . '__' .
50 $initcalls->{$counter}->{'line'} . '_' .
51 $initcalls->{$counter}->{'function'};
[all …]
|
| /Linux-v5.15/arch/mips/include/asm/ |
| D | asm.h | 14 * away by gas in -O mode. These nops are however required to fill delay
21 #include <asm/asm-eva.h>
40 * LEAF - declare leaf routine
46 .type symbol, @function; \
53 * NESTED - declare nested routine entry point
59 .type symbol, @function; \
66 * END - mark end of function
68 #define END(function) \ argument
70 .end function; \
71 .size function, .-function
[all …]
|
| /Linux-v5.15/arch/sparc/lib/ |
| D | NGbzero.S | 1 /* SPDX-License-Identifier: GPL-2.0 */
19 .type NGmemset, #function
32 .type NGbzero, #function
39 * %g7: store-init %asi to use
40 * %o4: non-store-init %asi to use
53 sub %g2, %g1, %g1
54 sub %o1, %g1, %o1
61 andcc %o0, (64 - 1), %g1
64 sub %g2, %g1, %g1
65 sub %o1, %g1, %o1
[all …]
|
| D | GENbzero.S | 1 /* SPDX-License-Identifier: GPL-2.0 */
20 .type GENmemset, #function
33 .type GENbzero, #function
52 sub %g2, %g1, %g1
53 sub %o1, %g1, %o1
60 andcc %o0, (64 - 1), %g1
63 sub %g2, %g1, %g1
64 sub %o1, %g1, %o1
71 andn %o1, (64 - 1), %g1
72 sub %o1, %g1, %o1
[all …]
|
| /Linux-v5.15/Documentation/devicetree/bindings/leds/ |
| D | leds-an30259a.txt | 1 * Panasonic AN30259A 3-channel LED driver
7 - compatible: Must be "panasonic,an30259a".
8 - reg: I2C slave address.
9 - #address-cells: Must be 1.
10 - #size-cells: Must be 0.
12 Each LED is represented as a sub-node of the panasonic,an30259a node.
14 Required sub-node properties:
15 - reg: Pin that the LED is connected to. Must be 1, 2, or 3.
17 Optional sub-node properties:
18 - function :
[all …]
|
| /Linux-v5.15/Documentation/devicetree/bindings/pinctrl/ |
| D | abilis,tb10x-iomux.txt | 5 -------------------
7 - compatible: should be "abilis,tb10x-iomux";
8 - reg: should contain the physical address and size of the pin controller's
12 Function definitions
13 --------------------
15 Functions are defined (and referenced) by sub-nodes of the pin controller.
16 Every sub-node defines exactly one function (implying a set of pins).
17 Every function is associated to one named pin group inside the pin controller
19 controller sub-nodes.
21 Required function definition subnode properties:
[all …]
|
| D | img,pistachio-pinctrl.txt | 8 each. The GPIO banks are represented as sub-nodes of the pad controller node.
10 Please refer to pinctrl-bindings.txt, ../gpio/gpio.txt, and
11 ../interrupt-controller/interrupts.txt for generic information regarding
15 --------------------------------------------
16 - compatible: "img,pistachio-system-pinctrl".
17 - reg: Address range of the pinctrl registers.
19 Required properties for GPIO bank sub-nodes:
20 --------------------------------------------
21 - interrupts: Interrupt line for the GPIO bank.
22 - gpio-controller: Indicates the device is a GPIO controller.
[all …]
|
| D | meson,pinctrl.txt | 4 - compatible: one of "amlogic,meson8-cbus-pinctrl"
5 "amlogic,meson8b-cbus-pinctrl"
6 "amlogic,meson8m2-cbus-pinctrl"
7 "amlogic,meson8-aobus-pinctrl"
8 "amlogic,meson8b-aobus-pinctrl"
9 "amlogic,meson8m2-aobus-pinctrl"
10 "amlogic,meson-gxbb-periphs-pinctrl"
11 "amlogic,meson-gxbb-aobus-pinctrl"
12 "amlogic,meson-gxl-periphs-pinctrl"
13 "amlogic,meson-gxl-aobus-pinctrl"
[all …]
|
| /Linux-v5.15/arch/arm64/kernel/ |
| D | entry-ftrace.S | 1 /* SPDX-License-Identifier: GPL-2.0-only */
3 * arch/arm64/kernel/entry-ftrace.S
10 #include <asm/asm-offsets.h>
17 * Due to -fpatchable-function-entry=2, the compiler has placed two NOPs before
18 * the regular function prologue. For an enabled callsite, ftrace_init_nop() and
26 * Each instrumented function follows the AAPCS, so here x0-x8 and x18-x30 are
27 * live (x18 holds the Shadow Call Stack pointer), and x9-x17 are safe to
38 sub sp, sp, #(PT_REGS_SIZE + 16)
40 /* Save function arguments (and x9 for simplicity) */
47 /* Optionally save the callee-saved registers, always save the FP */
[all …]
|
| /Linux-v5.15/Documentation/driver-api/ |
| D | auxiliary_bus.rst | 1 .. SPDX-License-Identifier: GPL-2.0-only
13 export an interface for another subsystem to drive (e.g. SIOV Physical Function
14 export Virtual Function management). A split of the functionality into child-
15 devices representing sub-domains of functionality makes it possible to
16 compartmentalize, layer, and distribute domain-specific concerns via a Linux
17 device-driver model.
23 allows for the audio core device to be minimal and focused on hardware-specific
28 auxiliary_device within other domain-specific structures and the use of .ops
30 of a communication channel with the parent is domain-specific.
51 One example is a PCI network device that is RDMA-capable and exports a child
[all …]
|
| /Linux-v5.15/include/linux/surface_aggregator/ |
| D | device.h | 1 /* SPDX-License-Identifier: GPL-2.0+ */
3 * Surface System Aggregator Module (SSAM) bus and client-device subsystem.
5 * Main interface for the surface-aggregator bus, surface-aggregator client
7 * Provides support for non-platform/non-ACPI SSAM clients via dedicated
10 * Copyright (C) 2019-2021 Maximilian Luz <luzmaximilian@gmail.com>
23 /* -- Surface System Aggregator Module bus. --------------------------------- */
26 * enum ssam_device_domain - SAM device domain.
36 * enum ssam_virtual_tc - Target categories for the virtual SAM domain.
44 * struct ssam_device_uid - Unique identifier for SSAM device.
49 * @function: Sub-function of the device. This field can be used to split a
[all …]
|
| /Linux-v5.15/arch/arm/kernel/ |
| D | entry-ftrace.S | 1 /* SPDX-License-Identifier: GPL-2.0-only */
7 #include "entry-header.S"
10 * When compiling with -pg, gcc inserts a call to the mcount routine at the
11 * start of every function. In mcount, apart from the function's address (in
12 * lr), we need to get hold of the function's caller's address.
22 * mcount can be thought of as a function called in the middle of a subroutine
36 sub \rd, \rd, #MCOUNT_INSN_SIZE
63 mcount_adjust_addr r0, lr @ instrumented function
73 sub sp, sp, #8 @ space for PC and CPSR OLD_R0,
86 stmdb sp!, {r0-r11, lr}
[all …]
|
| /Linux-v5.15/Documentation/devicetree/bindings/mfd/ |
| D | samsung,sec-core.txt | 1 Binding for Samsung S2M and S5M family multi-function device
4 This is a part of device tree bindings for S2M and S5M family multi-function
8 of multi-function devices which include voltage and current regulators, RTC,
9 charger controller, clock outputs and other sub-blocks. It is interfaced
10 to the host controller using an I2C interface. Each sub-block is usually
14 This document describes bindings for main device node. Optional sub-blocks
15 must be a sub-nodes to it. Bindings for them can be found in:
16 - bindings/regulator/samsung,s2mpa01.txt
17 - bindings/regulator/samsung,s2mps11.txt
18 - bindings/regulator/samsung,s5m8767.txt
[all …]
|
