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/linux/Documentation/devicetree/bindings/sound/
H A Ddai-params.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/sound/dai-params.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
15 convert-channels:
16 description: Number of audio channels used by DAI
21 convert-sample-format:
25 - s8
26 - s16_le
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/linux/sound/isa/sb/
H A Demu8000_pcm.c1 // SPDX-License-Identifier: GPL-2.0-or-later
17 * define the following if you want to use this pcm with non-interleaved mode
21 /* NOTE: for using the non-interleaved mode with alsa-lib, you have to set
34 * besides, for the time being, the non-interleaved mode doesn't work well on
35 * alsa-li
68 emu8k_open_dram_for_pcm(struct snd_emu8000 * emu,int channels) emu8k_open_dram_for_pcm() argument
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/linux/sound/core/oss/
H A Dlinear.c2 * Linear conversion Plug-In
4 * Abramo Bagnara <abramo@alsa-project.org>
19 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
48 memcpy(p + data->copy_ofs, src + data->src_ofs, data->copy_bytes); in do_convert()
49 if (data->cvt_endian) in do_convert()
51 tmp ^= data->flip; in do_convert()
52 memcpy(dst, p + data->dst_ofs, data->dst_bytes); in do_convert()
55 static void convert(struct snd_pcm_plugin *plugin, in convert() function
60 struct linear_priv *data = (struct linear_priv *)plugin->extra_data; in convert()
62 int nchannels = plugin->src_format.channels; in convert()
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H A 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/drivers/comedi/drivers/
H A Dni_daq_700.c1 // SPDX-License-Identifier: GPL-2.0+
4 * Driver for DAQCard-700 DIO/AI
7 * COMEDI - Linux Control and Measurement Device Interface
13 * Description: National Instruments PCMCIA DAQCard-700
16 * Devices: [National Instruments] PCMCIA DAQ-Card-700 (ni_daq_700)
20 * The daqcard-700 appears in Comedi as a digital I/O subdevice (0) with
21 * 16 channels and a analog input subdevice (1) with 16 single-ended channels
22 * or 8 differential channels, and three input ranges.
24 * Digital: The channel 0 corresponds to the daqcard-700's output
27 * Digital direction configuration: channels 0-7 output, 8-15 input.
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/linux/Documentation/devicetree/bindings/iio/afe/
H A Dtemperature-transducer.yaml1 # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/iio/afe/temperature-transducer.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Liam Beguin <liambeguin@gmail.com>
19 When an io-channel measures the output voltage of a temperature analog front
35 -----
37 +---+---+
39 +---+---+ -----
41 V proportional to T +----+----+
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/linux/Documentation/devicetree/bindings/hwmon/
H A Dmoortec,mr75203.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Rahul Tanwar <rtanwar@maxlinear.com>
19 *) Temperature Sensor (TS) - used to monitor core temperature (e.g. mr74137).
20 *) Voltage Monitor (VM) - used to monitor voltage levels (e.g. mr74138).
21 *) Process Detector (PD) - used to assess silicon speed (e.g. mr74139).
22 *) Delay Chain - ring oscillator connected to the PD, used to measure IO
25 *) Pre Scaler - provides divide-by-X scaling of input voltage, which can then
26 be presented for VM for measurement within its range (e.g. mr76006 -
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/linux/arch/arm64/boot/dts/renesas/
H A Dulcb-kf-simple-audio-card-mix+split.dtsi1 // SPDX-License-Identifier: GPL-2.0
12 * (A) CPU0 (2ch) <----> (2ch) (X) ak4613 (MIX-0)
13 * (B) CPU1 (2ch) --/ (MIX-1)
14 * (C) CPU3 (2ch) ----> (8ch) (Y) PCM3168A-p (TDM-0 : 0,1ch)
15 * (D) CPU2 (2ch) --/ (TDM-1 : 2,3ch)
16 * (E) CPU4 (2ch) --/ (TDM-2 : 4,5ch)
17 * (F) CPU5 (2ch) --/ (TDM-3 : 6,7ch)
18 * (G) CPU6 (2ch) <---- (6ch) (Z) PCM3168A-c (TDM-a: 0,1ch)
19 * (H) CPU7 (2ch) <--/ (TDM-b: 2,3ch)
20 * (I) CPU8 (2ch) <--/ (TDM-c: 4,5ch)
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H A Dulcb-kf-audio-graph-card-mix+split.dtsi1 // SPDX-License-Identifier: GPL-2.0
12 * (A) CPU0 (2ch) <----> (2ch) (X) ak4613 (MIX-0)
13 * (B) CPU1 (2ch) --/ (MIX-1)
14 * (C) CPU2 (2ch) ----> (8ch) (Y) PCM3168A-p (TDM-0 : 0,1ch)
15 * (D) CPU3 (2ch) --/ (TDM-1 : 2,3ch)
16 * (E) CPU4 (2ch) --/ (TDM-2 : 4,5ch)
17 * (F) CPU5 (2ch) --/ (TDM-3 : 6,7ch)
18 * (G) CPU6 (2ch) <---- (6ch) (Z) PCM3168A-c (TDM-a: 0,1ch)
19 * (H) CPU7 (2ch) <--/ (TDM-b: 2,3ch)
20 * (I) CPU8 (2ch) <--/ (TDM-c: 4,5ch)
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H A Dulcb-kf-audio-graph-card2-mix+split.dtsi1 // SPDX-License-Identifier: GPL-2.0
12 * (A) CPU0 (2ch) <----> (2ch) (X) ak4613 (MIX-0)
13 * (B) CPU1 (2ch) --/ (MIX-1)
14 * (C) CPU3 (2ch) ----> (8ch) (Y) PCM3168A-p (TDM-0 : 0,1ch)
15 * (D) CPU2 (2ch) --/ (TDM-1 : 2,3ch)
16 * (E) CPU4 (2ch) --/ (TDM-2 : 4,5ch)
17 * (F) CPU5 (2ch) --/ (TDM-3 : 6,7ch)
18 * (G) CPU6 (2ch) <---- (6ch) (Z) PCM3168A-c (TDM-a: 0,1ch)
19 * (H) CPU7 (2ch) <--/ (TDM-b: 2,3ch)
20 * (I) CPU8 (2ch) <--/ (TDM-c: 4,5ch)
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/linux/sound/usb/
H A Dproc.c1 // SPDX-License-Identifier: GPL-2.0-or-later
18 /* convert our full speed USB rate into sampling rate in Hz */
24 /* convert our high speed USB rate into sampling rate in Hz */
35 struct snd_usb_audio *chip = entry->private_data; in proc_audio_usbbus_read()
36 if (!atomic_read(&chip->shutdown)) in proc_audio_usbbus_read()
37 snd_iprintf(buffer, "%03d/%03d\n", chip->de in proc_audio_usbbus_read()
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/linux/drivers/staging/vc04_services/bcm2835-audio/
H A Dbcm2835.h1 /* SPDX-License-Identifier: GPL-2.0 */
11 #include <sound/pcm-indirect.h>
25 // convert alsa to chip volume (defined as macro rather than function call)
26 #define alsa2chip(vol) ((uint)(-(((vol) << 8) / 100)))
28 // convert chip to alsa volume
29 #define chip2alsa(vol) -(((vol) * 100) >> 8)
51 /* definition of the chip-specific record */
100 unsigned int channels, unsigned int samplerate,
/linux/include/linux/iio/adc/
H A Dqcom-vadc-common.h1 /* SPDX-License-Identifier: GPL-2.0 */
17 /* Max ADC code represents full-scale range of 1.8V */
35 /* Default decimation - 1024 for rev2, 840 for pmic5 */
48 #define PMI_CHG_SCALE_1 -138890
59 * VADC_CALIB_ABSOLUTE: uses the 625mV and 1.25V as reference channels.
69 * struct vadc_linear_graph - Represent ADC characteristics.
84 * enum vadc_scale_fn_type - Scaling function to convert ADC code to
86 * SCALE_DEFAULT: Default scaling to convert raw adc code to voltage (uV).
92 * SCALE_HW_CALIB_DEFAULT: Default scaling to convert raw adc code to
/linux/Documentation/core-api/
H A Ddma-isa-lpc.rst12 ------------------------
16 #include <linux/dma-mapping.h>
19 The first is the generic DMA API used to convert virtual addresses to
20 bus addresses (see Documentation/core-api/dma-api.rst for details).
28 -----------------
37 The DMA-able address space is the lowest 16 MB of _physical_ memory.
45 allocate the memory during boot-up it's a good idea to also pass
52 -------------------
65 Channels chapter
66 --------
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/linux/sound/soc/intel/avs/boards/
H A Dmax98357a.c1 // SPDX-License-Identifier: GPL-2.0-only
3 // Copyright(c) 2021-2022 Intel Corporation
13 #include <sound/soc-acpi.h>
14 #include <sound/soc-dapm.h>
32 struct snd_interval *rate, *channels; in avs_max98357a_be_fixup() local
36 channels = hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS); in avs_max98357a_be_fixup()
39 /* The ADSP will convert th in avs_max98357a_be_fixup()
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H A Dmax98927.c1 // SPDX-License-Identifier: GPL-2.0-only
13 #include <sound/soc-acpi.h>
14 #include <sound/soc-dapm.h>
17 #define MAX98927_DEV0_NAME "i2c-MX98927:00"
18 #define MAX98927_DEV1_NAME "i2c-MX98927:01"
19 #define MAX98927_CODEC_NAME "max98927-aif1"
50 struct snd_interval *rate, *channels; in avs_max98927_be_fixup() local
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H A Dmax98373.c1 // SPDX-License-Identifier: GPL-2.0-only
13 #include <sound/soc-acpi.h>
14 #include <sound/soc-dapm.h>
17 #define MAX98373_DEV0_NAME "i2c-MX98373:00"
18 #define MAX98373_DEV1_NAME "i2c-MX98373:01"
19 #define MAX98373_CODEC_NAME "max98373-aif1"
50 struct snd_interval *rate, *channels; in avs_max98373_be_fixup() local
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H A Dssm4567.c1 // SPDX-License-Identifier: GPL-2.0-only
3 // Copyright(c) 2021-2022 Intel Corporation
15 #include <sound/soc-acpi.h>
19 #define SKL_SSM_CODEC_DAI "ssm4567-hifi"
23 .dlc = COMP_CODEC_CONF("i2c-INT343B:00"),
27 .dlc = COMP_CODEC_CONF("i2c-INT343B:01"),
67 struct snd_interval *rate, *channels; in avs_ssm4567_be_fixup() local
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/linux/arch/arm/mach-omap2/
H A Dvc.c1 // SPDX-License-Identifier: GPL-2.0-only
19 #include "prm-regbits-34xx.h"
20 #include "prm-regbits-44xx.h"
52 * struct omap_vc_channel_cfg - describe the cfg_channel bitfield
81 * On OMAP3+, all VC channels have the above default bitfield
101 * omap_vc_config_channel - configure VC channel to PMIC mappings
106 * - i2c slave address (SA)
107 * - voltage configuration address (RAV)
108 * - command configuration address (RAC) and enable bit (RACEN)
109 * - command values for ON, ONLP, RET and OFF (CMD)
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/linux/drivers/net/ethernet/mellanox/mlx5/core/en/
H A Dhtb.c1 // SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB
16 u32 classid; /* 16-bit, except root. */
39 hash_for_each(htb->qos_tc2node, bkt, node, hnode) { in mlx5e_htb_enumerate_leaves()
40 if (node->qid == MLX5E_QOS_QID_INNER) in mlx5e_htb_enumerate_leaves()
42 err = callback(data, node->qid, node->hw_id); in mlx5e_htb_enumerate_leaves()
53 last = find_last_bit(htb->qos_used_qids, mlx5e_qos_max_leaf_nodes(htb->mdev)); in mlx5e_htb_cur_leaf_nodes()
54 return last == mlx5e_qos_max_leaf_nodes(htb->mdev) ? 0 : last + 1; in mlx5e_htb_cur_leaf_nodes()
59 int size = mlx5e_qos_max_leaf_nodes(htb->mdev); in mlx5e_htb_find_unused_qos_qid()
60 struct mlx5e_priv *priv = htb->priv; in mlx5e_htb_find_unused_qos_qid()
63 WARN_ONCE(!mutex_is_locked(&priv->state_lock), "%s: state_lock is not held\n", __func__); in mlx5e_htb_find_unused_qos_qid()
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/linux/tools/net/ynl/pyynl/
H A Dethtool.py2 # SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause
17 Verify and convert command-line arguments to the ynl-compatible request.
20 valid_attrs.remove('header') # not user-provided
44 Pretty-prin
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/linux/sound/soc/sof/
H A Dipc4-pcm.c1 // SPDX-License-Identifier: (GPL-2.0-only OR BSD-3-Clause)
11 #include "sof-audio.h"
12 #include "sof-priv.h"
14 #include "ipc4-priv.h"
15 #include "ipc4-topology.h"
16 #include "ipc4-fw-reg.h"
19 * struct sof_ipc4_timestamp_info - IPC4 timestamp info
42 * struct sof_ipc4_pcm_stream_priv - IPC4 specific private data
57 * the wrap-around point of any hardware counter, and larger than any
67 struct sof_ipc4_pcm_stream_priv *stream_priv = sps->private; in sof_ipc4_sps_to_time_info()
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/linux/drivers/edac/
H A De7xxx_edac.c11 * http://www.anime.net/~goemon/linux-ecc/
14 …* http://www.intel.com/content/www/us/en/chipsets/e7501-chipset-memory-controller-hub-datasheet.ht…
76 #define E7XXX_NR_DIMMS 8 /* 2 channels, 4 dimms/channel */
78 /* E7XXX register addresses - device 0 function 0 */
93 * 22 Number channels 0=1,1=2
100 /* E7XXX register addresses - device 0 function 1 */
165 /* FIXME - is this valid for both SECDED and S4ECD4ED? */
186 struct e7xxx_pvt *pvt = (struct e7xxx_pvt *)mci->pvt_info; in ctl_page_to_phys()
190 if ((page < pvt->tolm) || in ctl_page_to_phys()
191 ((page >= 0x100000) && (page < pvt->remapbase))) in ctl_page_to_phys()
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/linux/drivers/hwmon/
H A Dmr75203.c1 // SPDX-License-Identifier: GPL-2.0
111 #define PVT_TEMP_MIN_mC -40000
117 #define PVT_SERIES5_J_CONST -100
133 * struct voltage_device - VM single input parameters.
139 * The structure provides mapping between channel-number (0..N-1) to VM-index
140 * (0..num_vm-1) and channel-index (0..ch_num-1) where N = num_vm * ch_num.
150 * struct voltage_channels - VM channel count.
151 * @total: Total number of channels in all VMs.
152 * @max: Maximum number of channels among all VMs.
188 struct pvt_device *pvt = file->private_data; in pvt_ts_coeff_j_read()
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/linux/arch/arm/boot/dts/cirrus/
H A Dep93xx-edb9302.dts1 // SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
5 /dts-v1/;
9 #address-cells = <1>;
10 #size-cells = <1>;
27 compatible = "audio-graph-card2";
33 compatible = "gpio-leds";
34 led-0 {
37 linux,default-trigger = "heartbeat";
41 led-1 {
55 compatible = "cfi-flash";
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