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/linux/Documentation/devicetree/bindings/iio/adc/
H A Dadi,ad7405.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
4 ---
6 $schema: http://devicetree.org/meta-schemas/core.yaml#
11 - Dragos Bogdan <dragos.bogdan@analog.com>
12 - Pop Ioan Daniel <pop.ioan-daniel@analog.com>
15 Analog Devices AD7405 is a high performance isolated ADC, 1-channel,
16 16-bit with a second-order Σ-Δ modulator that converts an analog input signal
17 into a high speed, single-bit data stream.
19 https://www.analog.com/media/en/technical-documentation/data-sheets/ad7405.pdf
20 https://www.analog.com/media/en/technical-documentation/data-sheets/adum7701.pdf
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H A Dst,stm32-dfsdm-adc.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/iio/adc/st,stm32-dfsdm-adc.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Fabrice Gasnier <fabrice.gasnier@foss.st.com>
11 - Olivier Moysan <olivier.moysan@foss.st.com>
14 STM32 DFSDM ADC is a sigma delta analog-to-digital converter dedicated to
17 - Sigma delta modulators (motor control, metering...)
18 - PDM microphones (audio digital microphone)
28 - st,stm32h7-dfsdm
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H A Dadi,ad9467.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: Analog Devices AD9467 and similar High-Speed ADCs
10 - Michael Hennerich <michael.hennerich@analog.com>
13 The AD9467 and the parts similar with it, are high-speed analog-to-digital
18 All the parts support the register map described by Application Note AN-877
19 https://www.analog.com/media/en/technical-documentation/application-notes/AN-877.pdf
21 https://www.analog.com/media/en/technical-documentation/data-sheets/AD9265.pdf
22 https://www.analog.com/media/en/technical-documentation/data-sheets/AD9434.pdf
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H A Dadi,ad4080.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
4 ---
6 $schema: http://devicetree.org/meta-schemas/core.yaml#
8 title: Analog Devices AD4080 20-Bit, 40 MSPS, Differential SAR ADC
11 - Antoniu Miclaus <antoniu.miclaus@analog.com>
14 The AD4080 is a high speed, low noise, low distortion, 20-bit, Easy Drive,
15 successive approximation register (SAR) analog-to-digital converter (ADC).
16 Maintaining high performance (signal-to-noise and distortion (SINAD) ratio
21 https://www.analog.com/media/en/technical-documentation/data-sheets/ad4080.pdf
23 $ref: /schemas/spi/spi-peripheral-props.yaml#
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H A Dadi,ad4851.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
4 ---
6 $schema: http://devicetree.org/meta-schemas/core.yaml#
11 - Sergiu Cuciurean <sergiu.cuciurean@analog.com>
12 - Dragos Bogdan <dragos.bogdan@analog.com>
13 - Antoniu Miclaus <antoniu.miclaus@analog.com>
16 Analog Devices AD485X fully buffered, 8-channel simultaneous sampling,
17 16/20-bit, 1 MSPS data acquisition system (DAS) with differential, wide
18 common-mode range inputs.
20 https://www.analog.com/media/en/technical-documentation/data-sheets/ad4855.pdf
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H A Dadi,axi-adc.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/iio/adc/adi,axi-adc.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Michael Hennerich <michael.hennerich@analog.com>
18 to the data-lines of the ADC and handle the streaming of data into
26 - AXI AD7606x: specialized version of the IP core for all the chips from
30 https://analogdevicesinc.github.io/hdl/library/axi_ad408x/index.html
31 https://analogdevicesinc.github.io/hdl/library/axi_ad485x/index.html
32 http://analogdevicesinc.github.io/hdl/library/axi_ad7606x/index.html
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H A Dadi,ad7606.yaml1 # SPDX-License-Identifier: GPL-2.0
3 ---
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Michael Hennerich <michael.hennerich@analog.com>
14 https://www.analog.com/media/en/technical-documentation/data-sheets/AD7605-4.pdf
15 https://www.analog.com/media/en/technical-documentation/data-sheets/ad7606_7606-6_7606-4.pdf
16 https://www.analog.com/media/en/technical-documentation/data-sheets/AD7606B.pdf
17 https://www.analog.com/media/en/technical-documentation/data-sheets/ad7606c-16.pdf
18 https://www.analog.com/media/en/technical-documentation/data-sheets/ad7606c-18.pdf
19 https://www.analog.com/media/en/technical-documentation/data-sheets/ad7607.pdf
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/linux/drivers/iio/
H A Dindustrialio-backend.c1 // SPDX-License-Identifier: GPL-2.0-only
8 * device which will callback into the backends when needed (to get/set some
11 * -------------------------------------------------------
12 * ------------------ | ------------ ------------ ------- FPGA|
13 * | ADC |------------------------| | ADC CORE |---------| DMA CORE |------| RAM | |
14 * | (Frontend/IIO) | Serial Data (eg: LVDS) | |(backend) |---------| |------| | |
15 * | |------------------------| ------------ ------------ ------- |
16 * ------------------ -------------------------------------------------------
19 * - Backends should register themselves with devm_iio_backend_register()
20 * - Frontend devices should get backends with devm_iio_backend_get()
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/linux/drivers/gpu/drm/i915/
H A Dintel_region_ttm.c1 // SPDX-License-Identifier: MIT
26 * intel_region_ttm_device_init - Initialize a TTM device
33 struct drm_device *drm = &dev_priv->drm; in intel_region_ttm_device_init()
35 return ttm_device_init(&dev_priv->bdev, i915_ttm_driver(), in intel_region_ttm_device_init()
36 drm->dev, drm->anon_inode->i_mapping, in intel_region_ttm_device_init()
37 drm->vma_offset_manager, false, false); in intel_region_ttm_device_init()
41 * intel_region_ttm_device_fini - Finalize a TTM device
46 ttm_device_fini(&dev_priv->bdev); in intel_region_ttm_device_fini()
51 * driver-private types for now, reserving TTM_PL_VRAM for stolen
58 GEM_BUG_ON(mem->type != INTEL_MEMORY_LOCAL && in intel_region_to_ttm_type()
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/linux/Documentation/iio/
H A Dad7606.rst1 .. SPDX-License-Identifier: GPL-2.0-only
24 ----------------
30 ------------------
33 .. code-block::
35 +-------------+ +-------------+
36 | BUSY |-------->| TRIGGER |
37 | CS |<--------| CS |
41 | SDI |<--------| SDO |
42 | DOUTA |-------->| SDI |
43 | SCLK |<--------| SCLK |
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/linux/drivers/block/drbd/
H A Ddrbd_protocol.h1 /* SPDX-License-Identifier: GPL-2.0-only */
33 P_SUPERSEDED = 0x18, /* Used in proto C, two-primaries conflict detection */
74 P_ZEROES = 0x36, /* data sock: zero-out, WRITE_ZEROES */
154 u32 size; /* == bio->bi_size */
159 u32 size; /* == bio->bi_size */
166 * P_SUPERSEDED (proto C, two-primaries conflict detection)
196 /* Detect all-zeros during resync, and rather TRIM/UNMAP/DISCARD those blocks
203 * - indicates support for 128 MiB "batch bios",
206 * - indicates that we exchange additional settings in p_sizes
215 * back to zero-out.
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/linux/drivers/iio/adc/
H A Dad7606_par.c1 // SPDX-License-Identifier: GPL-2.0
5 * Copyright 2011 - 2024 Analog Devices Inc.
11 #include <linux/io.h>
30 for (c = 0; c < indio_dev->num_channels; c++) { in ad7606_par_bus_update_scan_mode()
32 ret = iio_backend_chan_enable(st->back, c); in ad7606_par_bus_update_scan_mode()
34 ret = iio_backend_chan_disable(st->back, c); in ad7606_par_bus_update_scan_mode()
52 st->back = devm_iio_backend_get(dev, NULL); in ad7606_par_bus_setup_iio_backend()
53 if (IS_ERR(st->back)) in ad7606_par_bus_setup_iio_backend()
54 return PTR_ERR(st->back); in ad7606_par_bus_setup_iio_backend()
57 if (!st->cnvst_pwm) in ad7606_par_bus_setup_iio_backend()
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/linux/Documentation/devicetree/bindings/iio/dac/
H A Dadi,ad3552r.yaml1 # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
4 ---
6 $schema: http://devicetree.org/meta-schemas/core.yaml#
11 - Nuno Sá <nuno.sa@analog.com>
16 https://www.analog.com/media/en/technical-documentation/data-sheets/ad3541r.pdf
17 https://www.analog.com/media/en/technical-documentation/data-sheets/ad3542r.pdf
18 https://www.analog.com/media/en/technical-documentation/data-sheets/ad3551r.pdf
19 https://www.analog.com/media/en/technical-documentation/data-sheets/ad3552r.pdf
24 - adi,ad3541r
25 - adi,ad3542r
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/linux/tools/testing/selftests/powerpc/eeh/
H A Deeh-functions.sh2 # SPDX-License-Identifier: GPL-2.0-only
15 # device is recovered by removing and re-probing it. This causes the
19 if [ -z "$eeh_state" ]; then
23 local fw_state="$(echo $eeh_state | cut -d' ' -f1)"
24 local sw_state="$(echo $eeh_state | cut -d' ' -f2)"
28 if [ "$((sw_state & 0x3))" -ne 0 ] ; then
34 # the platform backends set these when the PE is in reset. The
36 if [ "$((fw_state & 0x18))" -ne "$((0x18))" ] ; then
44 test -e /proc/powerpc/eeh && \
45 grep -q 'EEH Subsystem is enabled' /proc/powerpc/eeh
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/linux/Documentation/block/
H A Dublk.rst1 .. SPDX-License-Identifier: GPL-2.0
13 new virtual block device such as ublk-qcow2 (there are several attempts of
18 - They can be written many programming languages.
19 - They can use libraries that are not available in the kernel.
20 - They can be debugged with tools familiar to application developers.
21 - Crashes do not kernel panic the machine.
22 - Bugs are likely to have a lower security impact than bugs in kernel
24 - They can be installed and updated independently of the kernel.
25 - They can be used to simulate block device easily with user specified
28 ublk block device (``/dev/ublkb*``) is added by ublk driver. Any IO request
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/linux/drivers/gpu/drm/sun4i/
H A Dsun4i_tcon.c1 // SPDX-License-Identifier: GPL-2.0-or-later
6 * Maxime Ripard <maxime.ripard@free-electrons.com>
11 #include <linux/media-bus-format.h>
48 drm_connector_list_iter_begin(encoder->dev, &iter); in sun4i_tcon_get_connector()
50 if (connector->encoder == encoder) { in sun4i_tcon_get_connector()
66 return -EINVAL; in sun4i_tcon_get_pixel_depth()
68 info = &connector->display_info; in sun4i_tcon_get_pixel_depth()
69 if (info->num_bus_formats != 1) in sun4i_tcon_get_pixel_depth()
70 return -EINVAL; in sun4i_tcon_get_pixel_depth()
72 switch (info->bus_formats[0]) { in sun4i_tcon_get_pixel_depth()
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/linux/drivers/platform/x86/dell/
H A Ddell-smbios-base.c1 // SPDX-License-Identifier: GPL-2.0-only
10 * Copyright (C) 2005-2014 Dell Inc.
23 #include "dell-smbios.h"
77 {0x0000, 19, -1}, /* diagnostics */
78 /* handled by kernel: dell-laptop */
123 /* handled by kernel: dell-laptop */
139 case -1: /* Completed with error */ in dell_smbios_error()
140 return -EIO; in dell_smbios_error()
141 case -2: /* Function not supported */ in dell_smbios_error()
142 return -ENXIO; in dell_smbios_error()
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/linux/include/xen/interface/io/
H A Dblkif.h1 /* SPDX-License-Identifier: MIT */
5 * Unified block-device I/O interface for Xen guest OSes.
7 * Copyright (c) 2003-2004, Keir Fraser
13 #include <xen/interface/io/ring.h>
17 * Front->back notifications: When enqueuing a new request, sending a
19 * hold-off mechanism provided by the ring macros). Backends must set
22 * Back->front notifications: When enqueuing a new response, sending a
24 * hold-off mechanism provided by the ring macros). Frontends must set
33 * If supported, the backend will write the key "multi-queue-max-queues" to
37 * key "multi-queue-num-queues" with the number they wish to use, which must be
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/linux/Documentation/filesystems/caching/
H A Dfscache.rst1 .. SPDX-License-Identifier: GPL-2.0
13 FS-Cache mediates between cache backends (such as CacheFiles) and network
16 +---------+
17 | | +--------------+
18 | NFS |--+ | |
19 | | | +-->| CacheFS |
20 +---------+ | +----------+ | | /dev/hda5 |
21 | | | | +--------------+
22 +---------+ +-------------->| | |
23 | | +-------+ | |--+
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/linux/drivers/tty/hvc/
H A Dhvc_console.c1 // SPDX-License-Identifier: GPL-2.0+
47 * future to better deal with backends that want other buffer sizes.
61 static atomic_t hvc_needs_init __read_mostly = ATOMIC_INIT(-1);
79 * This value is used to assign a tty->index value to a hvc_struct based
83 static int last_hvc = -1;
98 spin_lock_irqsave(&hp->lock, flags); in hvc_get_by_index()
99 if (hp->index == index) { in hvc_get_by_index()
100 tty_port_get(&hp->port); in hvc_get_by_index()
101 spin_unlock_irqrestore(&hp->lock, flags); in hvc_get_by_index()
105 spin_unlock_irqrestore(&hp->lock, flags); in hvc_get_by_index()
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/linux/drivers/s390/char/
H A Dtape_core.c1 // SPDX-License-Identifier: GPL-2.0
9 * Tuan Ngo-Anh <ngoanh@de.ibm.com>
85 return dev_id->devno + (dev_id->ssid << 16); in devid_to_int()
100 return sysfs_emit(buf, "%i\n", tdev->medium_state); in tape_medium_state_show()
112 return sysfs_emit(buf, "%i\n", tdev->first_minor); in tape_first_minor_show()
124 return sysfs_emit(buf, "%s\n", (tdev->first_minor < 0) ? in tape_state_show()
125 "OFFLINE" : tape_state_verbose[tdev->tape_state]); in tape_state_show()
138 if (tdev->first_minor < 0) in tape_operation_show()
141 spin_lock_irq(get_ccwdev_lock(tdev->cdev)); in tape_operation_show()
142 if (list_empty(&tdev->req_queue)) in tape_operation_show()
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/linux/drivers/target/
H A Dtarget_core_transport.c1 // SPDX-License-Identifier: GPL-2.0-or-later
7 * (c) Copyright 2002-2013 Datera, Inc.
159 return -ENOMEM; in init_se_kmem_caches()
228 wake_up(&cmd_cnt->refcnt_wq); in target_release_cmd_refcnt()
240 init_completion(&cmd_cnt->stop_done); in target_alloc_cmd_counter()
241 init_waitqueue_head(&cmd_cnt->refcnt_wq); in target_alloc_cmd_counter()
242 atomic_set(&cmd_cnt->stopped, 0); in target_alloc_cmd_counter()
244 rc = percpu_ref_init(&cmd_cnt->refcnt, target_release_cmd_refcnt, 0, in target_alloc_cmd_counter()
263 if (!atomic_read(&cmd_cnt->stopped)) in target_free_cmd_counter()
264 percpu_ref_put(&cmd_cnt->refcnt); in target_free_cmd_counter()
[all …]
H A Dtarget_core_user.c1 // SPDX-License-Identifier: GPL-2.0-only
36 * -------------
38 * Define a shared-memory interface for LIO to pass SCSI commands and
39 * data to userspace for processing. This is to allow backends that
40 * are too complex for in-kernel support to be possible.
42 * It uses the UIO framework to do a lot of the device-creation and
48 * internal to the mmap-ed area. There is separate space outside the
68 #define CMDR_SIZE_DEF (MB_CMDR_SIZE_DEF - CMDR_OFF)
77 #define TCMU_MBS_TO_PAGES(_mbs) ((size_t)_mbs << (20 - PAGE_SHIFT))
78 #define TCMU_PAGES_TO_MBS(_pages) (_pages >> (20 - PAGE_SHIFT))
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/linux/mm/
H A Dmemory.c1 // SPDX-License-Identifier: GPL-2.0-only
9 * demand-loading started 01.12.91 - seems it is high on the list of
10 * things wanted, and it should be easy to implement. - Linus
14 * Ok, demand-loading was easy, shared pages a little bit tricker. Shared
15 * pages started 02.12.91, seems to work. - Linus.
21 * Also corrected some "invalidate()"s - I wasn't doing enough of them.
27 * 19.12.91 - works, somewhat. Sometimes I get faults, don't know why.
29 * 20.12.91 - Ok, making the swap-device changeable like the root.
33 * 05.04.94 - Multi-page memory management added for v1.1.
36 * 16.07.99 - Support of BIGMEM added by Gerhard Wichert, Siemens AG
[all …]
/linux/drivers/net/
H A Dxen-netfront.c2 * Virtual network driver for conversing with remote driver backends.
4 * Copyright (c) 2002-2005, K A Fraser
58 #include <xen/interface/io/netif.h>
81 #define NETFRONT_SKB_CB(skb) ((struct netfront_cb *)((skb)->cb))
91 /* Queue name is interface name with "-qNNN" appended */
94 /* IRQ name is queue name with "-tx" or "-rx" appended */
108 unsigned int id; /* Queue ID, 0-based */
109 char name[QUEUE_NAME_SIZE]; /* DEVNAME-qN */
122 char tx_irq_name[IRQ_NAME_SIZE]; /* DEVNAME-qN-tx */
123 char rx_irq_name[IRQ_NAME_SIZE]; /* DEVNAME-qN-rx */
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