| /linux/drivers/base/firmware_loader/ |
| H A D | main.c | 1 // SPDX-License-Identifier: GPL-2.0
3 * main.c - Multi purpose firmware loading support
7 * Please see Documentation/driver-api/firmware/ for more information.
26 #include <linux/firmware.h>
44 #include "firmware.h"
48 MODULE_DESCRIPTION("Multi purpose firmware loading support");
59 * Names of firmware images which have been cached successfully
61 * helper can trace which firmware images have been cached
75 const char *name; member
80 const char *name; member
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| H A D | fallback.c | 1 // SPDX-License-Identifier: GPL-2.0
12 #include "firmware.h"
15 * firmware fallback mechanism
19 * use small loading timeout for caching devices' firmware because all these
20 * firmware images have been loaded successfully at lease once, also system is
21 * ready for completing firmware loading now. The maximum size of firmware in
57 if (kill_all || !fw_priv->need_uevent) in kill_pending_fw_fallback_reqs()
68 * fw_load_sysfs_fallback() - load a firmware via the sysfs fallback mechanism
69 * @fw_sysfs: firmware sysfs information for the firmware to load
72 * In charge of constructing a sysfs fallback interface for firmware loading.
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| /linux/include/linux/ |
| H A D | firmware.h | 1 /* SPDX-License-Identifier: GPL-2.0 */
13 struct firmware { struct
17 /* firmware loader private fields */ argument
22 * enum fw_upload_err - firmware upload error codes argument
25 * @FW_UPLOAD_ERR_TIMEOUT: SW timed out on handshake with HW/firmware
28 * @FW_UPLOAD_ERR_INVALID_SIZE: invalid firmware image size
30 * @FW_UPLOAD_ERR_WEAROUT: FLASH device is approaching wear-out, wait & retry
31 * @FW_UPLOAD_ERR_FW_INVALID: invalid firmware file
49 void *priv; /* firmware loader private fields */
53 * struct fw_upload_ops - device specific operations to support firmware upload
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| H A D | remoteproc.h | 18 * * Neither the name Texas Instruments nor the names of its
47 * struct resource_table - firmware resource table header
55 * If needed, the remote processor firmware should contain this table
61 * is expected, where the firmware requests a resource, and once allocated,
81 * struct fw_rsc_hdr - firmware resource entry header
95 * enum fw_resource_type - types of resource entries
99 * @RSC_DEVMEM: request to iommu_map a memory-based peripheral.
126 #define FW_RSC_ADDR_ANY (-1)
129 * struct fw_rsc_carveout - physically contiguous memory request
135 * @name: human-readable name of the requested memory region
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| /linux/drivers/base/firmware_loader/builtin/ |
| H A D | main.c | 1 // SPDX-License-Identifier: GPL-2.0
2 /* Builtin firmware support */
4 #include <linux/firmware.h>
5 #include "../firmware.h"
11 char *name; member
19 static bool fw_copy_to_prealloc_buf(struct firmware *fw, in fw_copy_to_prealloc_buf()
24 if (size < fw->size) in fw_copy_to_prealloc_buf()
26 memcpy(buf, fw->data, fw->size); in fw_copy_to_prealloc_buf()
31 * firmware_request_builtin() - load builtin firmware
32 * @fw: pointer to firmware struct
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| /linux/tools/testing/selftests/firmware/ |
| H A D | fw_fallback.sh | 2 # SPDX-License-Identifier: GPL-2.0
4 # to load firmware it can't find on disk itself. We must request a firmware
7 set -e
23 local name="$1"
27 echo -n "$name" >"$DIR"/trigger_request &
31 while [ ! -e "$DIR"/"$name"/loading ]; do
33 timeout=$(( $timeout - 1 ))
34 if [ "$timeout" -eq 0 ]; then
35 echo "$0: firmware interface never appeared" >&2
40 echo 1 >"$DIR"/"$name"/loading
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| H A D | fw_filesystem.sh | 2 # SPDX-License-Identifier: GPL-2.0
3 # This validates that the kernel will load firmware out of its list of
4 # firmware locations on disk. Since the user helper does similar work,
7 set -e
14 RUN_XZ="xz -C crc32 --lzma2=dict=2MiB"
15 RUN_ZSTD="zstd -q"
26 echo 1 >/sys/class/firmware/timeout
34 if [ ! -e "$DIR"/trigger_async_request ]; then
44 # Request a firmware that doesn't exist, it should fail.
45 if echo -n "nope-$NAME" >"$DIR"/trigger_request 2> /dev/null; then
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| H A D | fw_upload.sh | 2 # SPDX-License-Identifier: GPL-2.0
3 # This validates the user-initiated fw upload mechanism of the firmware
4 # loader. It verifies that one or more firmware devices can be created
7 set -e
13 errors="hw-error
15 device-busy
16 invalid-file-size
17 read-write-error
18 flash-wearout"
19 error_abort="user-abort"
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| /linux/drivers/net/wireless/marvell/libertas/ |
| H A D | firmware.c | 1 // SPDX-License-Identifier: GPL-2.0-only
3 * Firmware loading and handling functions.
7 #include <linux/firmware.h>
16 const struct firmware *helper, const struct firmware *mainfw) in lbs_fw_loaded()
20 lbs_deb_fw("firmware load complete, code %d\n", ret); in lbs_fw_loaded()
23 priv->fw_callback(priv, ret, helper, mainfw); in lbs_fw_loaded()
25 spin_lock_irqsave(&priv->driver_lock, flags); in lbs_fw_loaded()
26 priv->fw_callback = NULL; in lbs_fw_loaded()
27 wake_up(&priv->fw_waitq); in lbs_fw_loaded()
28 spin_unlock_irqrestore(&priv->driver_lock, flags); in lbs_fw_loaded()
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| /linux/drivers/media/usb/dvb-usb/ |
| H A D | dvb-usb-firmware.c | 1 // SPDX-License-Identifier: GPL-2.0
2 /* dvb-usb-firmware.c is part of the DVB USB library.
4 * Copyright (C) 2004-6 Patrick Boettcher (patrick.boettcher@posteo.de)
5 * see dvb-usb-init.c for copyright information.
7 * This file contains functions for downloading the firmware to Cypress FX 1 and 2 based devices.
9 * FIXME: This part does actually not belong to dvb-usb, but to the usb-subsystem.
11 #include "dvb-usb-common.h"
17 const char *name; /* name of the usb controller */ member
18 u16 cpu_cs_register; /* needs to be restarted, when the firmware has been downloaded. */
22 { .id = DEVICE_SPECIFIC, .name = "Device specific", .cpu_cs_register = 0 },
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| /linux/Documentation/driver-api/firmware/ |
| H A D | fallback-mechanisms.rst | 6 filesystem lookup on the root filesystem or when the firmware simply cannot be
8 configuration options related to supporting the firmware fallback mechanism are:
10 * CONFIG_FW_LOADER_USER_HELPER: enables building the firmware fallback
15 enable the kobject uevent fallback mechanism on all firmware API calls
21 manually load the firmware. Read below for more details.
31 Justifying the firmware fallback mechanism
40 * Races upon resume from suspend. This is resolved by the firmware cache, but
41 the firmware cache is only supported if you use uevents, and its not
44 * Firmware is not accessible through typical means:
47 * The firmware provides very unique device specific data tailored for
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| H A D | firmware-usage-guidelines.rst | 2 Firmware Guidelines
6 firmware files to keep their hardware working. At the same time updated
7 firmware files must not cause any regressions for users of older kernel
10 Drivers that use firmware from linux-firmware should follow the rules in
11 this guide. (Where there is limited control of the firmware,
15 * Firmware files shall be designed in a way that it allows checking for
16 firmware ABI version changes. It is recommended that firmware files be
18 the firmware files in linux-firmware be named with some device
19 specific name, and just the major version. The firmware version should
20 be stored in the firmware header, or as an exception, as part of the
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| /linux/Documentation/ABI/testing/ |
| H A D | sysfs-firmware-qemu_fw_cfg | 1 What: /sys/firmware/qemu_fw_cfg/
6 sun4*, ppc/mac) are provisioned with a firmware configuration
8 provide configuration data to the guest firmware. Starting
11 useful as an out-of-band, asynchronous mechanism for providing
14 The authoritative guest-side hardware interface documentation
17 https://qemu-project.gitlab.io/qemu/specs/fw_cfg.html
29 /sys/firmware/qemu_fw_cfg/
33 /sys/firmware/qemu_fw_cfg/rev
41 /sys/firmware/qemu_fw_cfg/by_key/32
42 /sys/firmware/qemu_fw_cfg/by_key/33
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| /linux/Documentation/admin-guide/acpi/ |
| H A D | ssdt-overlays.rst | 1 .. SPDX-License-Identifier: GPL-2.0
7 In order to support ACPI open-ended hardware configurations (e.g. development
8 boards) we need a way to augment the ACPI configuration provided by the firmware
13 recompiling the firmware image with updated ACPI tables, neither is practical:
15 access to firmware tools which are often not publicly available.
18 way to augment firmware ACPI configuration is by dynamically loading
33 Name (_HID, "BMA222E")
34 Name (RBUF, ResourceTemplate ()
59 ASL Optimizing Compiler version 20140214-64 [Mar 29 2014]
60 Copyright (c) 2000 - 2014 Intel Corporation
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| /linux/lib/ |
| H A D | test_firmware.c | 1 // SPDX-License-Identifier: GPL-2.0-only
3 * This module provides an interface to trigger and test firmware loading.
5 * It is designed to be used for basic evaluation of the firmware loading
6 * subsystem (for example when validating firmware verification). It lacks
8 * unless explicitly requested by name.
17 #include <linux/firmware.h>
32 #define TEST_FIRMWARE_NAME "test-firmware.bin"
39 static const struct firmware *test_firmware;
46 const struct firmware *fw;
47 const char *name; member
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| /linux/drivers/platform/x86/ |
| H A D | touchscreen_dmi.c | 1 // SPDX-License-Identifier: GPL-2.0-or-later
24 /* The EFI embedded-fw code expects this to be the first member! */
33 PROPERTY_ENTRY_U32("touchscreen-size-x", 1850),
34 PROPERTY_ENTRY_U32("touchscreen-size-y", 1280),
35 PROPERTY_ENTRY_BOOL("touchscreen-inverted-y"),
36 PROPERTY_ENTRY_BOOL("touchscreen-swapped-x-y"),
37 PROPERTY_ENTRY_BOOL("silead,home-button"),
38 PROPERTY_ENTRY_STRING("firmware-name", "gsl1680-archos-101-cesium-educ.fw"),
48 PROPERTY_ENTRY_U32("touchscreen-size-x", 1850),
49 PROPERTY_ENTRY_U32("touchscreen-size-y", 1280),
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| /linux/drivers/staging/greybus/Documentation/firmware/ |
| H A D | firmware-management | 2 Firmware Management
3 -------------------
7 Interface-Manifest
8 ------------------
10 All firmware packages on the Modules or Interfaces are managed by a special
11 Firmware Management Protocol. To support Firmware Management by the AP, the
12 Interface Manifest shall at least contain the Firmware Management Bundle and a
13 Firmware Management Protocol CPort within it.
16 required to manage firmware packages.
18 For example, this is how the Firmware Management part of the Interface Manifest
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| /linux/drivers/pmdomain/bcm/ |
| H A D | raspberrypi-power.c | 1 // SPDX-License-Identifier: GPL-2.0
13 #include <dt-bindings/power/raspberrypi-power.h>
14 #include <soc/bcm2835/raspberrypi-firmware.h>
17 * Firmware indices for the old power domains interface. Only a few
48 * Asks the firmware to enable or disable power on a specific power
55 bool old_interface = rpi_domain->old_interface; in rpi_firmware_set_power()
59 packet.domain = rpi_domain->domain; in rpi_firmware_set_power()
62 ret = rpi_firmware_property(rpi_domain->fw, old_interface ? in rpi_firmware_set_power()
67 dev_err(&domain->dev, "Failed to set %s to %u (%d)\n", in rpi_firmware_set_power()
70 dev_dbg(&domain->dev, "Set %s to %u\n", in rpi_firmware_set_power()
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| /linux/sound/soc/intel/avs/ |
| H A D | avs.h | 1 /* SPDX-License-Identifier: GPL-2.0-only */
3 * Copyright(c) 2021-2022 Intel Corporation
14 #include <linux/firmware.h>
18 #include <sound/soc-component.h>
36 * struct avs_dsp_ops - Platform-specific DSP operations
51 int (* const load_basefw)(struct avs_dev *, struct firmware *);
52 int (* const load_lib)(struct avs_dev *, struct firmware *, u32);
64 ((adev)->spec->dsp_ops->op(adev, ## __VA_ARGS__))
76 ((adev)->spec->attributes & AVS_PLATATTR_##attr)
97 const char *name; member
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| /linux/drivers/gpu/drm/nouveau/nvkm/core/ |
| H A D | firmware.c | 23 #include <core/firmware.h>
30 const char *name, int ver, const struct firmware **pfw) in nvkm_firmware_load_name() argument
35 snprintf(path, sizeof(path), "%s%s", base, name); in nvkm_firmware_load_name()
45 const char *name, int ver, struct nvkm_blob *blob) in nvkm_firmware_load_blob() argument
47 const struct firmware *fw; in nvkm_firmware_load_blob()
50 ret = nvkm_firmware_load_name(subdev, base, name, ver, &fw); in nvkm_firmware_load_blob()
52 blob->data = kmemdup(fw->data, fw->size, GFP_KERNEL); in nvkm_firmware_load_blob()
53 blob->size = fw->size; in nvkm_firmware_load_blob()
55 if (!blob->data) in nvkm_firmware_load_blob()
56 return -ENOMEM; in nvkm_firmware_load_blob()
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| /linux/Documentation/networking/devlink/ |
| H A D | devlink-info.rst | 1 .. SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
7 The ``devlink-info`` mechanism enables device drivers to report device
8 (hardware and firmware) information in a standard, extensible fashion.
10 The original motivation for the ``devlink-info`` API was twofold:
12 - making it possible to automate device and firmware management in a fleet
13 of machines in a vendor-independent fashion (see also
14 :ref:`Documentation/networking/devlink/devlink-flash.rst <devlink_flash>`);
15 - name the per component FW versions (as opposed to the crowded ethtool
18 ``devlink-info`` supports reporting multiple types of objects. Reporting driver
19 versions is generally discouraged - here, and via any other Linux API.
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| H A D | devlink-flash.rst | 1 .. SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
9 The ``devlink-flash`` API allows updating device firmware. It replaces the
10 older ``ethtool-flash`` mechanism, and doesn't require taking any
13 $ devlink dev flash pci/0000:05:00.0 file flash-boot.bin
15 Note that the file name is a path relative to the firmware loading path
16 (usually ``/lib/firmware/``). Drivers may send status updates to inform
22 The ``devlink-flash`` command allows optionally specifying a mask indicating
26 .. list-table:: List of overwrite mask bits
29 * - Name
30 - Description
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| /linux/drivers/staging/greybus/ |
| H A D | fw-download.c | 1 // SPDX-License-Identifier: GPL-2.0
3 * Greybus Firmware Download Protocol Driver.
9 #include <linux/firmware.h>
14 #include "firmware.h"
18 /* Timeout, in jiffies, within which fetch or release firmware must be called */
25 char name[FW_NAME_SIZE]; member
26 const struct firmware *fw;
30 /* Timeout, in jiffies, within which the firmware shall download */
48 dev_dbg(fw_req->fw_download->parent, "firmware %s released\n", in fw_req_release()
49 fw_req->name); in fw_req_release()
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| /linux/Documentation/devicetree/bindings/remoteproc/ |
| H A D | ti,pru-rproc.yaml | 1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/remoteproc/ti,pru-rproc.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Suman Anna <s-anna@ti.com>
13 Each Programmable Real-Time Unit and Industrial Communication Subsystem
14 (PRU-ICSS or PRUSS) has two 32-bit load/store RISC CPU cores called
15 Programmable Real-Time Units (PRUs), each represented by a node. Each PRU
17 use the Data RAMs present within the PRU-ICSS for code execution.
27 corresponding PRU-ICSS node. Each node can optionally be rendered inactive by
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| /linux/drivers/gpu/drm/ |
| H A D | drm_edid_load.c | 1 // SPDX-License-Identifier: GPL-2.0-or-later
3 drm_edid_load.c: use a built-in EDID data set or load it via the firmware
10 #include <linux/firmware.h>
24 "Do not probe monitor, use specified EDID blob from /lib/firmware instead.");
26 static const struct drm_edid *edid_load(struct drm_connector *connector, const char *name) in edid_load() argument
28 const struct firmware *fw = NULL; in edid_load()
32 err = request_firmware(&fw, name, connector->dev->dev); in edid_load()
34 drm_err(connector->dev, in edid_load()
35 "[CONNECTOR:%d:%s] Requesting EDID firmware \"%s\" failed (err=%d)\n", in edid_load()
36 connector->base.id, connector->name, in edid_load()
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