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/linux/include/sound/
H A Dmemalloc.h1 /* SPDX-License-Identifier: GPL-2.0-or-later */
12 #include <linux/dma-direction.h>
33 #define SNDRV_DMA_TYPE_CONTINUOUS 1 /* continuous no-DMA memory */
34 #define SNDRV_DMA_TYPE_DEV 2 /* generic device continuous */
35 #define SNDRV_DMA_TYPE_DEV_WC 5 /* continuous write-combined */
37 #define SNDRV_DMA_TYPE_DEV_IRAM 4 /* generic device iram-buffer */
42 #define SNDRV_DMA_TYPE_NONCONTIG 8 /* non-coherent SG buffer */
43 #define SNDRV_DMA_TYPE_NONCOHERENT 9 /* non-coherent buffer */
46 #define SNDRV_DMA_TYPE_DEV_WC_SG 6 /* SG write-combined */
48 #define SNDRV_DMA_TYPE_DEV_SG SNDRV_DMA_TYPE_DEV /* no SG-buf support */
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/linux/include/sound/sof/
H A Dstream.h1 /* SPDX-License-Identifier: (GPL-2.0-only OR BSD-3-Clause) */
36 /* continuous and non-standard rates for flexibility */
38 #define SOF_RATE_KNOT (1 << 31) /**< non-continuous */
88 uint8_t cont_update_posn; /**< 1 means continuous update stream position */
92 uint16_t chmap[SOF_IPC_MAX_CHANNELS]; /**< channel map - SOF_CHMAP_ */
96 /* PCM params info - SOF_IPC_STREAM_PCM_PARAMS */
100 uint32_t flags; /**< generic PCM flags - SOF_PCM_FLAG_ */
105 /* PCM params info reply - SOF_IPC_STREAM_PCM_PARAMS_REPLY */
112 /* free stream - SOF_IPC_STREAM_PCM_PARAMS */
/linux/drivers/gpu/drm/gma500/
H A Doaktrail.h1 /* SPDX-License-Identifier: GPL-2.0-only */
3 * Copyright (c) 2007-2011, Intel Corporation.
78 /* Bit 0, Frequency, 15 bits,0 - 32767Hz */
84 /* 0: Type-1, */
85 /* 1: Type-2, */
86 /* 2: Type-3, */
87 /* 3: Type-4 */
94 /* Bit 8, Minimum Supported Frame Rate, 6 bits, 0 - 63Hz */
107 /*Bit 0, Frequency, 16 bits, 0 - 32767Hz*/
108 u8 Panel_Initial_Brightness;/* [7:0] 0 - 100% */
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/linux/include/uapi/drm/
H A Dexynos_drm.h1 /* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
8 * Seung-Woo Kim <sw0312.kim@samsung.com>
26 * User-desired buffer creation information structure.
28 * @size: user-desired memory allocation size.
29 * - this size value would be page-aligned internally.
32 * - this handle will be set by gem module of kernel side.
41 * A structure for getting a fake-offset that can be used with mmap.
44 * @reserved: just padding to be 64-bit aligned.
45 * @offset: a fake-offset of gem object.
84 /* Physically Continuous memory and used as default. */
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/linux/arch/arm/boot/dts/amlogic/
H A Dmeson8b-ec100.dts1 // SPDX-License-Identifier: (GPL-2.0+ OR MIT)
6 /dts-v1/;
8 #include <dt-bindings/gpio/gpio.h>
9 #include <dt-bindings/input/input.h>
22 stdout-path = "serial0:115200n8";
30 emmc_pwrseq: emmc-pwrseq {
31 compatible = "mmc-pwrseq-emmc";
32 reset-gpios = <&gpio BOOT_9 GPIO_ACTIVE_LOW>;
35 gpio-keys {
36 compatible = "gpio-keys-polled";
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/linux/drivers/iio/adc/
H A Dqcom-spmi-rradc.c1 // SPDX-License-Identifier: GPL-2.0-only
3 * Copyright (c) 2016-2017, 2019, The Linux Foundation. All rights reserved.
28 #include <soc/qcom/qcom-spmi-pmic.h>
30 #define DRIVER_NAME "qcom-spmi-rradc"
219 * struct rradc_channel - rradc channel data
263 dev_err(chip->dev, in rradc_read()
266 return -EINVAL; in rradc_read()
270 ret = regmap_bulk_read(chip->regmap, chip->base + addr, buf, in rradc_read()
273 dev_err(chip->dev, "rr_adc reg 0x%x failed :%d\n", addr, in rradc_read()
278 ret = regmap_bulk_read(chip->regmap, chip->base + addr, in rradc_read()
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/linux/Documentation/devicetree/bindings/iio/adc/
H A Daspeed,ast2600-adc.yaml1 # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/iio/adc/aspeed,ast2600-adc.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Billy Tsai <billy_tsai@aspeedtech.com>
13 • 10-bits resolution for 16 voltage channels.
16 • Channel scanning can be non-continuous.
21 • Built-in a compensating method.
22 • Built-in a register to trim internal reference voltage.
30 - aspeed,ast2600-adc0
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/linux/Documentation/devicetree/bindings/input/
H A Dmicrochip,qt1050.txt1 Microchip AT42QT1050 Five-channel Touch Sensor IC
11 - compatible: Must be "microchip,qt1050"
12 - reg: The I2C address of the device
13 - interrupts: The sink for the touchpad's IRQ output,
14 see ../interrupt-controller/interrupts.txt
17 - wakeup-source: touch keys can be used as a wakeup source
19 Each button (key) is represented as a sub-node:
25 - linux,code: Keycode to emit.
26 - reg: The key number. Valid values: 0, 1, 2, 3, 4.
28 Optional subnode-properties:
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/linux/Documentation/core-api/
H A Dlibrs.rst2 Reed-Solomon Library Programming Interface
10 The generic Reed-Solomon Library provides encoding, decoding and error
13 Reed-Solomon codes are used in communication and storage applications to
30 ------------
54 --------
56 The encoder calculates the Reed-Solomon code over the given data length
60 The expanded data can be inverted on the fly by providing a non-zero
63 Reed-Solomon code for all 0x00 is all 0x00. The code is inverted before
68 no support for encoding continuous bitstreams with a symbol size != 8 at
83 --------
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H A Dprintk-index.rst1 .. SPDX-License-Identifier: GPL-2.0
19 Finding these changes in the sources would require non-trivial parsers.
36 named according to the binaries where the printk formats are built-in. There
44 might appear in "vmlinux" when the module is built-in.
48 $> head -1 /sys/kernel/debug/printk/index/vmlinux; shuf -n 5 vmlinux
50 <5> block/blk-settings.c:661 disk_stack_limits "%s: Warning: Device %s is misaligned\n"
54 <6> drivers/acpi/osl.c:1410 acpi_no_auto_serialize_setup "ACPI: auto-serialization disabled\n"
58 - :level: log level value: 0-7 for particular severity, -1 as default,
59 'c' as continuous line without an explicit log level
60 - :flags: optional flags: currently only 'c' for KERN_CONT
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/linux/sound/core/
H A Dmemalloc.c1 // SPDX-License-Identifier: GPL-2.0-or-later
11 #include <linux/dma-mapping.h>
12 #include <linux/dma-map-ops.h>
34 __GFP_RETRY_MAYFAIL | /* don't trigger OOM-killer */ \
35 __GFP_NOWARN) /* no stack trace print - this call is non-critical */
43 if (WARN_ON_ONCE(!ops || !ops->alloc)) in __snd_dma_alloc_pages()
45 return ops->alloc(dmab, size); in __snd_dma_alloc_pages()
49 * snd_dma_alloc_dir_pages - allocate the buffer area according to the given
57 * Calls the memory-allocator function for the corresponding
68 return -ENXIO; in snd_dma_alloc_dir_pages()
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/linux/tools/testing/selftests/mqueue/
H A Dmq_perf_tests.c47 " %s [-c #[,#..] -f] path\n"
49 " -c # Skip most tests and go straight to a high queue depth test\n"
59 " -f Only usable with continuous mode. Pin ourself to the CPUs\n"
99 mqd_t queue = -1;
105 .longName = "continuous",
110 .descrip = "Run continuous tests at a high queue depth in "
120 "re-run the tests using fake mode in order to check "
132 "continuous mode, but don't actually do any mq stuff, "
136 "the no-mqueue work and mqueue work tests",
192 if (queue != -1) in shutdown()
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/linux/include/soc/fsl/qe/
H A Ducc_slow.h1 /* SPDX-License-Identifier: GPL-2.0-or-later */
28 #define T_A 0x04000000 /* Address - the data transmitted as address
31 #define T_CM 0x02000000 /* continuous mode */
33 #define T_P 0x01000000 /* Preamble - send Preamble sequence before
54 #define R_CM 0x02000000 /* continuous mode */
62 #define R_NO 0x00100000 /* Rx Non Octet Aligned Packet */
89 /* 16-bit CCITT CRC (HDLC). (X16 + X12 + X5 + 1) */
93 /* 32-bit CCITT CRC (Ethernet and HDLC) */
219 * us_info - (In) pointer to the slow UCC info structure.
220 * uccs_ret - (Out) pointer to the slow UCC structure.
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/linux/drivers/gpu/drm/i915/
H A Di915_pvinfo.h2 * Copyright(c) 2011-2016 Intel Corporation. All rights reserved.
70 * Each VM can only have one portion of continuous area for now.
84 } nonmappable_gmadr; /* non aperture */
89 u32 rsv3[0x200 - 24]; /* pad to half page */
112 u32 rsv7[0x200 - 24]; /* pad to one page */
/linux/arch/powerpc/platforms/52xx/
H A Dmpc52xx_gpt.c1 // SPDX-License-Identifier: GPL-2.0-or-later
19 * -EBUSY). Thus, the safety wdt function always has precedence over the gpt
21 * this means that gpt0 is locked in wdt mode until the next reboot - this
27 * gpio-controller;
28 * #gpio-cells = < 2 >;
29 * This driver will register the GPIO pin if it finds the gpio-controller
34 * interrupt-controller;
35 * #interrupt-cells = < 1 >;
77 * struct mpc52xx_gpt - Private data structure for MPC52xx GPT driver
133 /* ---------------------------------------------------------------------
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/linux/Documentation/userspace-api/media/v4l/
H A Dfunc-read.rst1 .. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
4 .. _func-read:
13 v4l2-read - Read from a V4L2 device
18 .. code-block:: c
85 continuous capturing when the application can empty the buffers fast
101 :c:func:`read()` was interrupted by a signal. On error, -1 is
107 Non-blocking I/O has been selected using O_NONBLOCK and no data was
/linux/lib/
H A Dtextsearch.c1 // SPDX-License-Identifier: GPL-2.0-or-later
16 * both linear and non-linear data. Individual search algorithms are
21 * .. code-block:: none
24 * +----------------+
25 * | finish()|<--------------(6)-----------------+
26 * |get_next_block()|<--------------(5)---------------+ |
28 * | | +------------------------------+
30 * | | +------------------------------+
32 * | | +---------------+ (2) (4) (8)
33 * | (1)|----->| prepare() |---+ | |
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/linux/Documentation/driver-api/iio/
H A Dbuffers.rst11 The Industrial I/O core offers a way for continuous data capture based on a
35 is non *zero*, then a triggered capture will contain data samples for this
52 For example, a driver for a 3-axis accelerometer with 12 bit resolution where
53 data is stored in two 8-bits registers as follows::
56 +---+---+---+---+---+---+---+---+
58 +---+---+---+---+---+---+---+---+
61 +---+---+---+---+---+---+---+---+
63 +---+---+---+---+---+---+---+---+
118 Setting **scan_index** to -1 can be used to indicate that the specific channel
124 .. kernel-doc:: include/linux/iio/buffer.h
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/linux/sound/pci/echoaudio/
H A Dechoaudio_dsp.h3 Copyright Echo Digital Audio Corporation (c) 1998 - 2004
21 Foundation, Inc., 59 Temple Place - Suite 330, Boston,
22 MA 02111-1307, USA.
26 Translation from C++ and adaptation for use in ALSA-Driver
41 /**** Echo24: Gina24, Layla24, Mona, Mia, Mia-midi ****/
81 * These are the offsets for the memory-mapped DSP registers; the DSP base
133 #define MIDI_IN_SKIP_DATA (-1)
136 /*----------------------------------------------------------------------------
145 the future), Layla24 also has "continuous sample rate mode". In this mode,
149 To use continuous mode:
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/linux/Documentation/admin-guide/blockdev/
H A Dfloppy.rst19 Example: If your kernel is called linux-2.6.9, type the following line
22 linux-2.6.9 floppy=thinkpad
25 of linux-2.6.9::
31 linux-2.6.9 floppy=daring floppy=two_fdc
95 Indeed, dma memory needs to be continuous in physical memory,
96 and is thus harder to find, whereas non-dma buffers may be
104 If you have a FIFO-able FDC, the floppy driver automatically
105 falls back on non DMA mode if no DMA-able memory can be found.
130 using 'floppycontrol --messages'. Then access a floppy
131 disk. If you get a huge amount of "Over/Underrun - retrying"
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/linux/drivers/media/dvb-frontends/
H A Dcx24123.c1 // SPDX-License-Identifier: GPL-2.0-or-later
3 * Conexant cx24123/cx24109 - DVB QPSK Satellite demod/tuner driver
7 * Support for KWorld DVB-S 100 by Vadim Catana <skystar@moldova.cc>
9 * Support for CX24123/CX24113-NIM by Patrick Boettcher <pb@linuxtv.org>
26 "(1-9, default:off).");
197 {0x0d, 0x7f}, /* Force driver to shift until the maximum (+-10 MHz) */
198 {0x0e, 0x03}, /* Default non-inverted, FEC 3/4 (default) */
210 {0x2c, 0x00}, /* DiSEqC Message (0x2c - 0x31) */
217 {0x33, 0x00}, /* Interrupts off (0x33 - 0x34) */
229 {0x67, 0x83}, /* Non-DCII symbol clock */
[all …]
/linux/drivers/input/keyboard/
H A Dtegra-kbc.c1 // SPDX-License-Identifier: GPL-2.0-or-later
6 * Copyright (c) 2009-2011, NVIDIA Corporation.
156 val = readl(kbc->mmio + KBC_KP_ENT0_0 + i); in tegra_kbc_report_keys()
165 keycodes[num_down] = kbc->keycode[scancode]; in tegra_kbc_report_keys()
167 if ((keycodes[num_down] == KEY_FN) && kbc->use_fn_map) in tegra_kbc_report_keys()
178 * Ghosting occurs if there are 3 keys such that - in tegra_kbc_report_keys()
182 if (kbc->use_ghost_filter && num_down >= 3) { in tegra_kbc_report_keys()
190 * and the other is in the same column as the i-th key. in tegra_kbc_report_keys()
210 scancodes[i] += kbc->max_keys; in tegra_kbc_report_keys()
211 keycodes[i] = kbc->keycode[scancodes[i]]; in tegra_kbc_report_keys()
[all …]
/linux/drivers/s390/cio/
H A Ditcw.c1 // SPDX-License-Identifier: GPL-2.0
21 * struct itcw - incremental tcw helper data type
24 * tcw and associated tccb, tsb, data tidaw-list plus an optional interrogate
29 * - reset unused fields to zero
30 * - fill in required pointers
31 * - ensure required alignment for data structures
32 * - prevent data structures to cross 4k-byte boundary where required
33 * - calculate tccb-related length fields
34 * - optionally provide ready-made interrogate tcw and associated structures
37 * - tida only supported for data address, not for tccb
[all …]
/linux/net/ceph/
H A Dmon_client.c1 // SPDX-License-Identifier: GPL-2.0
24 * of cmon daemons use a modified version of the Paxos part-time parliament
62 return -EINVAL; in decode_mon_info()
122 ret = -ENOMEM; in ceph_monmap_decode()
125 monmap->fsid = fsid; in ceph_monmap_decode()
126 monmap->epoch = epoch; in ceph_monmap_decode()
127 monmap->num_mon = num_mon; in ceph_monmap_decode()
131 struct ceph_entity_inst *inst = &monmap->mon_ins in ceph_monmap_decode()
421 __ceph_monc_want_map(struct ceph_mon_client * monc,int sub,u32 epoch,bool continuous) __ceph_monc_want_map() argument
442 ceph_monc_want_map(struct ceph_mon_client * monc,int sub,u32 epoch,bool continuous) ceph_monc_want_map() argument
[all...]
/linux/Documentation/process/
H A Dstable-api-nonsense.rst8 Greg Kroah-Hartman <greg@kroah.com>
27 -----------------
38 -----
41 to worry about the in-kernel interfaces changing. For the majority of
59 -----------------------
64 - Depending on the version of the C compiler you use, different kernel
71 - Depending on what kernel build options you select, a wide range of
74 - different structures can contain different fields
75 - Some functions may not be implemented at all, (i.e. some locks
76 compile away to nothing for non-SMP builds.)
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