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/linux-6.8/Documentation/devicetree/bindings/iio/adc/
Dadi,ad7124.yaml1 # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
4 ---
6 $schema: http://devicetree.org/meta-schemas/core.yaml#
11 - Stefan Popa <stefan.popa@analog.com>
16 https://www.analog.com/media/en/technical-documentation/data-sheets/AD7124-8.pdf
21 - adi,ad7124-4
22 - adi,ad7124-8
32 clock-names:
34 - const: mclk
40 '#address-cells':
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Dadi,ad4130.yaml1 # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
4 ---
6 $schema: http://devicetree.org/meta-schemas/core.yaml#
11 - Cosmin Tanislav <cosmin.tanislav@analog.com>
15 https://www.analog.com/media/en/technical-documentation/data-sheets/AD4130-8.pdf
20 - adi,ad4130
29 clock-names:
31 - const: mclk
36 interrupt-names:
42 - int
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Dst,stm32-adc.yaml1 # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/iio/adc/st,stm32-adc.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 STM32 ADC is a successive approximation analog-to-digital converter.
11 It has several multiplexed input channels. Conversions can be performed
13 stored in a left-aligned or right-aligned 32-bit data register.
17 voltage goes beyond the user-defined, higher or lower thresholds.
22 - Fabrice Gasnier <fabrice.gasnier@foss.st.com>
27 - st,stm32f4-adc-core
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Dmicrochip,mcp3564.yaml1 # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
3 ---
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Marius Cristea <marius.cristea@microchip.com>
13 Bindings for the Microchip family of 153.6 ksps, Low-Noise 16/24-Bit
14 Delta-Sigma ADCs with an SPI interface. Datasheet can be found here:
16 …s/aemDocuments/documents/MSLD/ProductDocuments/DataSheets/MCP3561-2-4-Family-Data-Sheet-DS20006181…
18 …ds/aemDocuments/documents/APID/ProductDocuments/DataSheets/MCP3561_2_4R-Data-Sheet-DS200006391C.pdf
20 …ProductDocuments/DataSheets/MCP3461-2-4-Two-Four-Eight-Channel-153.6-ksps-Low-Noise-16-Bit-Delta-S…
22 …/aemDocuments/documents/APID/ProductDocuments/DataSheets/MCP3461-2-4R-Family-Data-Sheet-DS20006404…
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Dadi,max11410.yaml1 # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
4 ---
6 $schema: http://devicetree.org/meta-schemas/core.yaml#
11 - Ibrahim Tilki <Ibrahim.Tilki@analog.com>
21 - adi,max11410
30 interrupt-names:
34 - enum: [gpio0, gpio1]
35 - const: gpio1
37 '#address-cells':
40 '#size-cells':
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Dadi,ad7292.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 AD7292 10-Bit Monitor and Control System
10 - Marcelo Schmitt <marcelo.schmitt1@gmail.com>
13 Analog Devices AD7292 10-Bit Monitor and Control System with ADC, DACs,
17 https://www.analog.com/media/en/technical-documentation/data-sheets/ad7292.pdf
22 - adi,ad7292
27 vref-supply:
31 spi-cpha: true
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Dadc.yaml1 # SPDX-License-Identifier: GPL-2.0
3 ---
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: IIO Common Properties for ADC Channels
10 - Jonathan Cameron <jic23@kernel.org>
13 A few properties are defined in a common way ADC channels.
17 pattern: "^channel(@[0-9a-f]+)?$"
32 diff-channels:
33 $ref: /schemas/types.yaml#/definitions/uint32-array
42 settling-time-us:
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/linux-6.8/include/linux/iio/
Devents.h1 /* SPDX-License-Identifier: GPL-2.0-only */
2 /* The industrial I/O - event passing to userspace
4 * Copyright (c) 2008-2011 Jonathan Cameron
13 * IIO_EVENT_CODE() - create event identifier
15 * @diff: Whether the event is for an differential channel or not.
19 * @chan: Channel number for non-differential channels.
20 * @chan1: First channel number for differential channels.
21 * @chan2: Second channel number for differential channels.
24 #define IIO_EVENT_CODE(chan_type, diff, modifier, direction, \ argument
26 (((u64)type << 56) | ((u64)diff << 55) | \
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/linux-6.8/drivers/iio/adc/
Dstm32-adc.c1 // SPDX-License-Identifier: GPL-2.0
5 * Copyright (C) 2016, STMicroelectronics - All Rights Reserved
12 #include <linux/dma-mapping.h>
16 #include <linux/iio/timer/stm32-lptim-trigger.h>
17 #include <linux/iio/timer/stm32-timer-trigger.h>
26 #include <linux/nvmem-consumer.h>
31 #include "stm32-adc-core.h"
39 #define STM32_ADC_CH_MAX 20 /* max number of channels */
58 /* extsel - trigger mux selection value */
84 STM32_ADC_INT_CH_NONE = -1,
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Dmax11410.c1 // SPDX-License-Identifier: GPL-2.0-only
142 struct max11410_channel_config *channels; member
175 /* This driver only needs to write 8-bit registers */ in max11410_write_reg()
177 return -EINVAL; in max11410_write_reg()
179 return regmap_write(st->regmap, reg, val); in max11410_write_reg()
188 ret = regmap_bulk_read(st->regmap, reg, &st->scan.data, 3); in max11410_read_reg()
192 *val = get_unaligned_be24(&st->scan.data); in max11410_read_reg()
196 return regmap_read(st->regmap, reg, val); in max11410_read_reg()
204 return st->avdd; in max11410_get_vrefp()
206 return st->vrefp[refsel]; in max11410_get_vrefp()
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/linux-6.8/sound/core/
Dpcm_lib.c1 // SPDX-License-Identifier: GPL-2.0-or-later
5 * Abramo Bagnara <abramo@alsa-project.org>
43 delta = new_ptr - ptr; in update_silence_vars()
47 delta += runtime->boundary; in update_silence_vars()
48 if ((snd_pcm_uframes_t)delta < runtime->silence_filled) in update_silence_vars()
49 runtime->silence_filled -= delta; in update_silence_vars()
51 runtime->silence_filled = 0; in update_silence_vars()
52 runtime->silence_start = new_ptr; in update_silence_vars()
57 * runtime->silence_start: starting pointer to silence area
58 * runtime->silence_filled: size filled with silence
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/linux-6.8/tools/testing/selftests/alsa/
Dpcm-test.c1 // SPDX-License-Identifier: GPL-2.0
21 #include "alsa-local.h"
66 timestamp_t now, diff; in timestamp_diff_ms() local
68 if (tstamp->tv_nsec > now.tv_nsec) { in timestamp_diff_ms()
69 diff.tv_sec = now.tv_sec - tstamp->tv_sec - 1; in timestamp_diff_ms()
70 diff.tv_nsec = (now.tv_nsec + 1000000000L) - tstamp->tv_nsec; in timestamp_diff_ms()
72 diff.tv_sec = now.tv_sec - tstamp->tv_sec; in timestamp_diff_ms()
73 diff.tv_nsec = now.tv_nsec - tstamp->tv_nsec; in timestamp_diff_ms()
75 return (diff.tv_sec * 1000) + ((diff.tv_nsec + 500000L) / 1000000L); in timestamp_diff_ms()
89 return -1; in device_from_id()
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/linux-6.8/sound/soc/codecs/
Dpcm186x.c1 // SPDX-License-Identifier: GPL-2.0
5 * Copyright (C) 2015-2017 Texas Instruments Incorporated - https://www.ti.com
29 "avdd", /* Analog power supply. Connect to 3.3-V supply. */
30 "dvdd", /* Digital power supply. Connect to 3.3-V supply. */
31 "iovdd", /* I/O power supply. Connect to 3.3-V or 1.8-V. */
44 static const DECLARE_TLV_DB_SCALE(pcm186x_pga_tlv, -1200, 50, 0);
48 PCM186X_PGA_VAL_CH1_R, 0, -24, 80, 7, 0,
54 PCM186X_PGA_VAL_CH1_R, 0, -24, 80, 7, 0,
57 PCM186X_PGA_VAL_CH2_R, 0, -24, 80, 7, 0,
84 "{VIN1P, VIN1M}[DIFF]",
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/linux-6.8/drivers/dma/
Ddmatest.c1 // SPDX-License-Identifier: GPL-2.0-only
12 #include <linux/dma-mapping.h>
44 "Maximum number of channels to use (default: all)");
54 "dmatest 0-memcpy 1-memset (default: 0)");
69 "Pass -1 for infinite timeout");
83 static int alignment = -1;
85 …M_DESC(alignment, "Custom data address alignment taken as 2^(alignment) (default: not used (-1))");
96 * struct dmatest_params - test parameters.
102 * @max_channels: maximum number of channels to use
106 * @timeout: transfer timeout in msec, -1 for infinite timeout
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/linux-6.8/net/rxrpc/
Dconn_client.c1 // SPDX-License-Identifier: GPL-2.0-or-later
2 /* Client connection-specific management code.
13 * (2) DONT_REUSE - The connection should be discarded as soon as possible and
31 #include "ar-internal.h"
39 atomic_inc(&bundle->active); in rxrpc_activate_bundle()
48 idr_remove(&local->conn_ids, conn->proto.cid >> RXRPC_CIDSHIFT); in rxrpc_put_client_connection_id()
59 if (!idr_is_empty(&local->conn_ids)) { in rxrpc_destroy_client_conn_ids()
60 idr_for_each_entry(&local->conn_ids, conn, id) { in rxrpc_destroy_client_conn_ids()
62 conn, refcount_read(&conn->ref)); in rxrpc_destroy_client_conn_ids()
67 idr_destroy(&local->conn_ids); in rxrpc_destroy_client_conn_ids()
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/linux-6.8/Documentation/devicetree/bindings/mux/
Dadi,adg792a.txt4 - compatible : "adi,adg792a" or "adi,adg792g"
5 - #mux-control-cells : <0> if parallel (the three muxes are bound together
8 * Standard mux-controller bindings as described in mux-controller.yaml
11 - gpio-controller : if present, #gpio-cells below is required.
12 - #gpio-cells : should be <2>
13 - First cell is the GPO line number, i.e. 0 or 1
14 - Second cell is used to specify active high (0)
18 - idle-state : if present, array of states that the mux controllers will have
32 mux: mux-controller@50 {
35 #mux-control-cells = <1>;
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/linux-6.8/drivers/gpu/drm/renesas/rcar-du/
Drcar_du_crtc.c1 // SPDX-License-Identifier: GPL-2.0+
3 * R-Car Display Unit CRTCs
5 * Copyright (C) 2013-2015 Renesas Electronics Corporation
35 struct rcar_du_device *rcdu = rcrtc->dev; in rcar_du_crtc_read()
37 return rcar_du_read(rcdu, rcrtc->mmio_offset + reg); in rcar_du_crtc_read()
42 struct rcar_du_device *rcdu = rcrtc->dev; in rcar_du_crtc_write()
44 rcar_du_write(rcdu, rcrtc->mmio_offset + reg, data); in rcar_du_crtc_write()
49 struct rcar_du_device *rcdu = rcrtc->dev; in rcar_du_crtc_clr()
51 rcar_du_write(rcdu, rcrtc->mmio_offset + reg, in rcar_du_crtc_clr()
52 rcar_du_read(rcdu, rcrtc->mmio_offset + reg) & ~clr); in rcar_du_crtc_clr()
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/linux-6.8/include/linux/
Dptp_clock_kernel.h1 /* SPDX-License-Identifier: GPL-2.0-or-later */
19 * struct ptp_clock_request - request PTP clock event
47 * struct ptp_system_timestamp - system time corresponding to a PHC timestamp
57 * struct ptp_clock_info - describes a PTP hardware clock
65 * @n_ext_ts: The number of external time stamp channels.
163 * The callbacks must all return zero on success, non-zero otherwise.
208 * struct ptp_clock_event - decribes a PTP hardware clock event
226 * scaled_ppm_to_ppb() - convert scaled ppm to ppb
252 * diff_by_scaled_ppm - Calculate difference using scaled ppm
255 * @diff: on return, the absolute value of calculated diff
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/linux-6.8/sound/pci/pcxhr/
Dpcxhr_mix22.c1 // SPDX-License-Identifier: GPL-2.0-or-later
36 #define PCXHR_INPB(mgr, x) inb((mgr)->port[PCXHR_DSP] + (x))
37 #define PCXHR_OUTPB(mgr, x, data) outb((data), (mgr)->port[PCXHR_DSP] + (x))
72 /* values for PCHR_XLX_STATUS register - READ */
78 /* values for PCHR_XLX_STATUS register - WRITE */
96 /* values for PCXHR_XLX_SELMIC register - WRITE */
103 0x00, /* [000] -49.5 dB: AKM[000] = -1.#INF dB (mute) */
104 0x01, /* [001] -49.0 dB: AKM[001] = -48.131 dB (diff=0.86920 dB) */
105 0x01, /* [002] -48.5 dB: AKM[001] = -48.131 dB (diff=0.36920 dB) */
106 0x01, /* [003] -48.0 dB: AKM[001] = -48.131 dB (diff=0.13080 dB) */
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/linux-6.8/sound/usb/usx2y/
Dusbusx2y.c1 // SPDX-License-Identifier: GPL-2.0-or-later
3 * usbusx2y.c - ALSA USB US-428 Driver
5 2005-04-14 Karsten Wiese
8 Tested ok with kernel 2.6.12-rc2.
10 2004-12-14 Karsten Wiese
12 …snd_pcm_open for rawusb pcm-devices now returns -EBUSY if called without rawusb's hwdep device bei…
14 2004-12-02 Karsten Wiese
18 2004-10-26 Karsten Wiese
22 2004-10-21 Karsten Wiese
26 2004-10-03 Karsten Wiese
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/linux-6.8/sound/soc/fsl/
Dfsl_sai.c1 // SPDX-License-Identifier: GPL-2.0+
5 // Copyright 2012-2015 Freescale Semiconductor, Inc.
22 #include <linux/mfd/syscon/imx6q-iomuxc-gpr.h>
26 #include "imx-pcm.h"
44 * fsl_sai_dir_is_synced - Check if stream is synced by the opposite stream
58 return !sai->synchronous[dir] && sai->synchronous[adir]; in fsl_sai_dir_is_synced()
65 if (sai->is_pdm_mode) { in fsl_sai_get_pins_state()
68 state = pinctrl_lookup_state(sai->pinctrl, "dsd512"); in fsl_sai_get_pins_state()
72 state = pinctrl_lookup_state(sai->pinctrl, "dsd"); in fsl_sai_get_pins_state()
76 state = pinctrl_lookup_state(sai->pinctrl, "pcm_b2m"); in fsl_sai_get_pins_state()
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/linux-6.8/sound/drivers/
Daloop.c1 // SPDX-License-Identifier: GPL-2.0-or-later
8 * More accurate positioning and full-duplex support:
9 * Copyright (c) Ahmet İnan <ainan at mathematik.uni-freiburg.de>
39 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; /* Index 0-MAX */
41 static bool enable[SNDRV_CARDS] = {1, [1 ... (SNDRV_CARDS - 1)] = 0};
42 static int pcm_substreams[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = 8};
53 MODULE_PARM_DESC(pcm_substreams, "PCM substreams # (1-8) for loopback driver.");
55 MODULE_PARM_DESC(pcm_notify, "Break capture when PCM format/rate/channels changes.");
70 * call in loopback->cable_lock
74 * call in cable->lock
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/linux-6.8/drivers/input/keyboard/
Dsun4i-lradc-keys.c1 // SPDX-License-Identifier: GPL-2.0-or-later
13 * There are 2 channels, currently this driver only supports channel 0 since
63 /* struct lradc_variant - Describe sun4i-a10-lradc-keys hardware variant
112 u32 i, ints, val, voltage, diff, keycode = 0, closest = 0xffffffff; in sun4i_lradc_irq() local
114 ints = readl(lradc->base + LRADC_INTS); in sun4i_lradc_irq()
122 input_report_key(lradc->input, lradc->chan0_keycode, 0); in sun4i_lradc_irq()
123 lradc->chan0_keycode = 0; in sun4i_lradc_irq()
126 if ((ints & CHAN0_KEYDOWN_IRQ) && lradc->chan0_keycode == 0) { in sun4i_lradc_irq()
127 val = readl(lradc->base + LRADC_DATA0) & 0x3f; in sun4i_lradc_irq()
128 voltage = val * lradc->vref / 63; in sun4i_lradc_irq()
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/linux-6.8/drivers/comedi/drivers/
Damplc_pci230.c1 // SPDX-License-Identifier: GPL-2.0+
8 * COMEDI - Linux Control and Measurement Device Interface
35 * --------- ---------
43 * The AI subdevice has 16 single-ended channels or 8 differential
44 * channels.
46 * The PCI230 and PCI260 cards have 12-bit resolution. The PCI230+ and
47 * PCI260+ cards have 16-bit resolution.
51 * or PCI260 then it actually uses a "pseudo-differential" mode where the
62 * 0 => [-10, +10] V
63 * 1 => [-5, +5] V
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/linux-6.8/drivers/iio/addac/
Dstx104.c1 // SPDX-License-Identifier: GPL-2.0-only
30 #define STX104_IN_CHAN(chan, diff) { \ argument
38 .differential = diff \
90 * struct stx104_iio - IIO device private data structure
211 err = regmap_read(priv->aio_ctl_map, STX104_ADC_CONFIGURATION, &adc_config); in stx104_read_raw()
218 if (chan->output) { in stx104_read_raw()
219 err = regmap_read(priv->aio_data_map, STX104_DAC_OFFSET(chan->channel), in stx104_read_raw()
227 mutex_lock(&priv->lock); in stx104_read_raw()
230 err = regmap_write(priv->aio_ctl_map, STX104_ADC_CHANNEL, in stx104_read_raw()
231 STX104_SINGLE_CHANNEL(chan->channel)); in stx104_read_raw()
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