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/Linux-v6.1/Documentation/devicetree/bindings/sound/
Daudio-graph-port.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/sound/audio-graph-port.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
15 - $ref: /schemas/graph.yaml#/$defs/port-base
21 convert-rate:
22 $ref: "/schemas/sound/dai-params.yaml#/$defs/dai-sample-rate"
23 convert-channels:
24 $ref: "/schemas/sound/dai-params.yaml#/$defs/dai-channels"
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Daudio-graph.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/sound/audio-graph.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
14 $ref: /schemas/types.yaml#/definitions/phandle-array
25 $ref: /schemas/types.yaml#/definitions/non-unique-string-array
28 $ref: /schemas/types.yaml#/definitions/non-unique-string-array
29 convert-rate:
30 $ref: "/schemas/sound/dai-params.yaml#/$defs/dai-sample-rate"
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/Linux-v6.1/sound/core/oss/
Dmulaw.c2 * Mu-Law conversion Plug-In Interface
4 * Uros Bizjak <uros@kss-loka.si>
20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
29 #define SIGN_BIT (0x80) /* Sign bit for a u-law byte. */
31 #define NSEGS (8) /* Number of u-law segments. */
55 * linear2ulaw() - Convert a linear PCM value to u-law
58 * is biased by adding 33 which shifts the encoding range from (0 - 8158) to
59 * (33 - 8191). The result can be seen in the following encoding table:
62 * ------------------------ ---------------
75 * four bits wxyz. * The trailing bits (a - h) are ignored.
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/Linux-v6.1/tools/perf/util/
Ddata-convert-json.c1 // SPDX-License-Identifier: GPL-2.0-only
8 #include "data-convert.h"
37 // Outputs a JSON-encoded string surrounded by quotes with characters escaped.
80 // Outputs a printf format string (with delimiter) as a JSON value.
82 static void output_json_format(FILE *out, bool comma, int depth, const char *format, ...) in output_json_format() argument
87 va_start(args, format); in output_json_format()
88 vfprintf(out, format, args); in output_json_format()
92 // Outputs a JSON key-value pair where the value is a string.
102 // Outputs a JSON key-value pair where the value is a printf format string.
105 const char *key, const char *format, ...) in output_json_key_format() argument
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Ddata-convert-bt.c1 // SPDX-License-Identifier: GPL-2.0-only
14 #include <babeltrace/ctf-writer/writer.h>
15 #include <babeltrace/ctf-writer/clock.h>
16 #include <babeltrace/ctf-writer/stream.h>
17 #include <babeltrace/ctf-writer/event.h>
18 #include <babeltrace/ctf-writer/event-types.h>
19 #include <babeltrace/ctf-writer/event-fields.h>
20 #include <babeltrace/ctf-ir/utils.h>
22 #include <traceevent/event-parse.h>
24 #include "data-convert.h"
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Ds390-cpumsf.c1 // SPDX-License-Identifier: GPL-2.0
4 * Auxtrace support for s390 CPU-Measurement Sampling Facility
17 * see Documentation/perf.data-file-format.txt.
61 * record sample, the auxtrace queues will be processed. As auxtrace queues
72 * Each sampling-data entry in the auxiliary trace data generates a perf sample.
73 * This sample is filled
75 * etc. This sample is processed with perf_session__deliver_synth_event() to
80 * auxtrace_heap top. This is triggered by ordered_event->deliver().
95 * | - Those generated by perf record command (type number equal or higher
98 * | - Those generated by the kernel are handled by
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/Linux-v6.1/tools/perf/Documentation/
Dperf-data.txt1 perf-data(1)
5 ----
6 perf-data - Data file related processing
9 --------
14 -----------
18 --------
19 convert::
20 Converts perf data file into another format.
21 It's possible to set data-convert debug variable to get debug messages from conversion,
23 perf --debug data-convert data convert ...
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/Linux-v6.1/sound/core/
Dpcm_misc.c2 * PCM Interface - misc routines
18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
29 #define SND_PCM_FORMAT_UNKNOWN (-1)
37 signed char le; /* 0 = big-endian, 1 = little-endian, -1 = others */
38 signed char signd; /* 0 = unsigned, 1 = signed, -1 = others */
45 static bool valid_format(snd_pcm_format_t format) in valid_format() argument
47 return (INT)format >= 0 && (INT)format <= (INT)SNDRV_PCM_FORMAT_LAST; in valid_format()
52 .width = 8, .phys = 8, .le = -1, .signd = 1,
56 .width = 8, .phys = 8, .le = -1, .signd = 0,
108 .width = 32, .phys = 32, .le = 1, .signd = -1,
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Dpcm_dmaengine.c1 // SPDX-License-Identifier: GPL-2.0-or-later
4 * Author: Lars-Peter Clausen <lars@metafoo.de>
7 * imx-pcm-dma-mx2.c, Copyright 2009 Sascha Hauer <s.hauer@pengutronix.de>
8 * mxs-pcm.c, Copyright (C) 2011 Freescale Semiconductor, Inc.
9 * ep93xx-pcm.c, Copyright (C) 2006 Lennert Buytenhek <buytenh@wantstofly.org>
32 return substream->runtime->private_data; in substream_to_prtd()
39 return prtd->dma_chan; in snd_dmaengine_pcm_get_chan()
44 * snd_hwparams_to_dma_slave_config - Convert hw_params to dma_slave_config
63 return -EINVAL; in snd_hwparams_to_dma_slave_config()
75 if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { in snd_hwparams_to_dma_slave_config()
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/Linux-v6.1/Documentation/userspace-api/media/v4l/
Ddev-raw-vbi.rst1 .. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
4 .. _raw-vbi:
19 signal, or to be added to a signal for output. The data format is
55 Raw VBI Format Negotiation
106 .. flat-table:: struct v4l2_vbi_format
107 :header-rows: 0
108 :stub-columns: 0
111 * - __u32
112 - ``sampling_rate``
113 - Samples per second, i. e. unit 1 Hz.
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/Linux-v6.1/drivers/gpu/drm/bridge/synopsys/
Ddw-hdmi-ahb-audio.c1 // SPDX-License-Identifier: GPL-2.0-only
21 #include "dw-hdmi-audio.h"
23 #define DRIVER_NAME "dw-hdmi-ahb-audio"
85 * allocation bits. Note that we can't do channel remapping here -
88 * Mappings for alsa-lib pcm/surround*.conf files:
144 * Convert to hardware format: The userspace buffer contains IEC958 samples,
156 u32 *src = dw->buf_src + offset; in dw_hdmi_reformat_iec958()
157 u32 *dst = dw->buf_dst + offset; in dw_hdmi_reformat_iec958()
158 u32 *end = dw->buf_src + offset + bytes; in dw_hdmi_reformat_iec958()
161 u32 b, sample = *src++; in dw_hdmi_reformat_iec958() local
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/Linux-v6.1/Documentation/trace/rv/
Ddeterministic_automata.rst10 - *X* is the set of states;
11 - *E* is the finite set of events;
12 - x\ :subscript:`0` is the initial state;
13 - X\ :subscript:`m` (subset of *X*) is the set of marked (or final) states.
14 - *f* : *X* x *E* -> *X* $ is the transition function. It defines the state
22 - *X* = { ``preemptive``, ``non_preemptive``}
23 - *E* = { ``preempt_enable``, ``preempt_disable``, ``sched_waking``}
24 - x\ :subscript:`0` = ``preemptive``
25 - X\ :subscript:`m` = {``preemptive``}
26 - *f* =
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/Linux-v6.1/Documentation/sound/designs/
Doss-emulation.rst2 Notes on Kernel OSS-Emulation
13 as add-on kernel modules, snd-pcm-oss, snd-mixer-oss and snd-seq-oss.
18 is called. The alias is defined ``sound-service-x-y``, where x and y are
22 Only necessary step for auto-loading of OSS modules is to define the
25 alias sound-slot-0 snd-emu10k1
27 As the second card, define ``sound-slot-1`` as well.
29 ``alias sound-slot-0 snd-card-0`` doesn't work any more like the old
38 after the corresponding OSS-emulation module is loaded. Don't worry
79 snd-pcm-oss and snd-rawmidi. In the case of PCM, the following
80 options are available for snd-pcm-oss:
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/Linux-v6.1/drivers/comedi/drivers/ni_routing/
DREADME15 increasingly hard to find and the NI-MHDDK (comments in in example code).
22 varying purposes, but the end-user had to gain a knowledge of register
26 programming manuals and vendor-provided documentation are _not_ even
27 close to the same names that are in the end-user documentation.
32 NIDAQmx(-base) c-libraries, nor with register level programming, _nor_
34 information is through the proprietary NI-MAX software, which currently only
36 cannot be exported from NI-MAX, except by screenshot.
41 of signal routing capabilities of National Instruments data-acquisition and
42 control hardware. In order to facilitate the transfer of register-level
49 documentation, (b) NI's user-level code, (c) the information as provided by
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/Linux-v6.1/Documentation/networking/device_drivers/ethernet/dlink/
Ddl2k.rst1 .. SPDX-License-Identifier: GPL-2.0
4 D-Link DL2000-based Gigabit Ethernet Adapter Installation
11 - Compatibility List
12 - Quick Install
13 - Compiling the Driver
14 - Installing the Driver
15 - Option parameter
16 - Configuration Script Sample
17 - Troubleshooting
25 - D-Link DGE-550T Gigabit Ethernet Adapter.
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/Linux-v6.1/tools/perf/arch/powerpc/util/
Dperf_regs.c1 // SPDX-License-Identifier: GPL-2.0
11 #include "../../../perf-sys.h"
83 #define SDT_OP_REGEX1 "^(%r)?([1-2]?[0-9]|3[0-1])$"
85 /* -NUM(REG) or NUM(REG) or -NUM(%rREG) or NUM(%rREG) */
86 #define SDT_OP_REGEX2 "^(\\-)?([0-9]+)\\((%r)?([1-2]?[0-9]|3[0-1])\\)$"
117 * Parse OP and convert it into uprobe format, which is, +/-NUM(%gprREG).
119 * Format Example
120 * -------------------------
122 * -NUM(REG) -48(18)
124 * -NUM(%rREG) -48(%r18)
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/Linux-v6.1/sound/soc/generic/
Dsimple-card-utils.c1 // SPDX-License-Identifier: GPL-2.0
3 // simple-card-utils.c
35 if (!strcmp(data->convert_sample_format, in asoc_simple_fixup_sample_fmt()
52 if (data->convert_rate) in asoc_simple_convert_fixup()
53 rate->min = in asoc_simple_convert_fixup()
54 rate->max = data->convert_rate; in asoc_simple_convert_fixup()
56 if (data->convert_channels) in asoc_simple_convert_fixup()
57 channels->min = in asoc_simple_convert_fixup()
58 channels->max = data->convert_channels; in asoc_simple_convert_fixup()
60 if (data->convert_sample_format) in asoc_simple_convert_fixup()
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/Linux-v6.1/sound/oss/dmasound/
Ddmasound_paula.c1 // SPDX-License-Identifier: GPL-2.0-only
11 * - added versioning
12 * - put in and populated the hardware_afmts field.
13 * [0.2] - put in SNDCTL_DSP_GETCAPS value.
14 * [0.3] - put in constraint on state buffer usage.
15 * [0.4] - put in default hard/soft settings
65 * Helper pointers for 16(14)-bit sound
82 static int AmiSetFormat(int format);
92 * Heartbeat interferes with sound since the 7 kHz low-pass filter and the
133 * to convert samples into the right frequency/encoding. They will only work on
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/Linux-v6.1/arch/x86/events/amd/
Dpower.c1 // SPDX-License-Identifier: GPL-2.0-only
3 * Performance events - AMD Processor Power Reporting Mechanism
16 /* Event code: LSB 8 bits, passed in attr->config any other bit is reserved. */
25 * The ratio of compute unit power accumulator sample period to the
45 struct hw_perf_event *hwc = &event->hw; in event_update()
49 prev_pwr_acc = hwc->pwr_acc; in event_update()
50 prev_ptsc = hwc->ptsc; in event_update()
56 * final value (delta) is micro-Watts. Then add it to the event count. in event_update()
60 delta -= prev_pwr_acc; in event_update()
62 delta = new_pwr_acc - prev_pwr_acc; in event_update()
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/Linux-v6.1/include/linux/comedi/
Dcomedidev.h1 /* SPDX-License-Identifier: GPL-2.0+ */
4 * header file for kernel-only structures, variables, and constants
6 * COMEDI - Linux Control and Measurement Device Interface
7 * Copyright (C) 1997-2000 David A. Schleef <ds@schleef.org>
13 #include <linux/dma-mapping.h>
28 * struct comedi_subdevice - Working data for a COMEDI subdevice
34 * the low-level driver.)
36 * low-level driver.)
38 * the COMEDI core and user application. (Initialized by the low-level
42 * low-level driver, or changed from 0 to 1 during post-configuration.)
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/Linux-v6.1/sound/ppc/
Dsnd_ps3.c1 // SPDX-License-Identifier: GPL-2.0-only
9 #include <linux/dma-mapping.h>
129 } while (!done && --retries); in snd_ps3_verify_dma_stop()
145 * NOTE: caller should reset card->running before call.
146 * If not, the interrupt handler will re-start DMA,
158 * 5.7ms is from 16bit/sample 2ch 44.1Khz; the time next in snd_ps3_wait_for_dma_stop()
187 * convert virtual addr to ioif bus addr.
191 return card->dma_start_bus_addr[ch] + in v_to_bus()
192 (paddr - card->dma_start_vaddr[ch]); in v_to_bus()
205 card->dma_last_transfer_vaddr[ch] = in snd_ps3_bump_buffer()
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/Linux-v6.1/sound/pci/asihpi/
Dhpi.h1 /* SPDX-License-Identifier: GPL-2.0-only */
5 Copyright (C) 1997-2011 AudioScience Inc. <support@audioscience.com>
14 The HPI is a low-level hardware abstraction layer to all
17 (C) Copyright AudioScience Inc. 1998-2010
31 /** Audio format types
37 /** 8-bit unsigned PCM. Windows equivalent is WAVE_FORMAT_PCM. */
39 /** 16-bit signed PCM. Windows equivalent is WAVE_FORMAT_PCM. */
41 /** MPEG-1 Layer-1. */
43 /** MPEG-1 Layer-2.
67 <tr><td>256<td>-<td>X
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/Linux-v6.1/sound/soc/intel/keembay/
Dkmb_platform.c1 // SPDX-License-Identifier: GPL-2.0-only
10 #include <linux/dma-mapping.h>
56 * Convert to ADV7511 HDMI hardware format.
59 * ALSA IEC958 subframe format:
60 * bit 0-3 = preamble (0x8 = block start)
61 * 4-7 = AUX (=0)
62 * 8-27 = audio data (without AUX if 24bit sample)
68 * ADV7511 IEC958 subframe format:
69 * bit 0-23 = audio data
74 * 28-31 = 0
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/Linux-v6.1/drivers/gpu/drm/omapdrm/dss/
Dhdmi4_core.c1 // SPDX-License-Identifier: GPL-2.0-only
5 * Copyright (C) 2010-2011 Texas Instruments Incorporated - https://www.ti.com/
32 return core->base + HDMI_CORE_AV; in hdmi_av_base()
37 void __iomem *base = core->base; in hdmi4_core_ddc_init()
50 return -ETIMEDOUT; in hdmi4_core_ddc_init()
61 return -ETIMEDOUT; in hdmi4_core_ddc_init()
71 return -ETIMEDOUT; in hdmi4_core_ddc_init()
80 void __iomem *base = core->base; in hdmi4_core_ddc_read()
87 return -ETIMEDOUT; in hdmi4_core_ddc_read()
112 return -EIO; in hdmi4_core_ddc_read()
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/Linux-v6.1/drivers/video/fbdev/omap2/omapfb/dss/
Dhdmi4_core.c1 // SPDX-License-Identifier: GPL-2.0-only
6 * Copyright (C) 2010-2011 Texas Instruments Incorporated - https://www.ti.com/
33 return core->base + HDMI_CORE_AV; in hdmi_av_base()
38 void __iomem *base = core->base; in hdmi_core_ddc_init()
51 return -ETIMEDOUT; in hdmi_core_ddc_init()
62 return -ETIMEDOUT; in hdmi_core_ddc_init()
72 return -ETIMEDOUT; in hdmi_core_ddc_init()
81 void __iomem *base = core->base; in hdmi_core_ddc_edid()
90 return -ETIMEDOUT; in hdmi_core_ddc_edid()
118 return -EIO; in hdmi_core_ddc_edid()
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