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/linux/Documentation/ABI/testing/
H A Dsysfs-bus-soundwire-slave1 What: /sys/bus/soundwire/devices/sdw:.../status
2 /sys/bus/soundwire/devices/sdw:.../device_number
10 Description: SoundWire Slave status
19 What: /sys/bus/soundwire/devices/sdw:.../dev-properties/mipi_revision
20 /sys/bus/soundwire/devices/sdw:.../dev-properties/wake_capable
21 /sys/bus/soundwire/devices/sdw:.../dev-properties/test_mode_capable
22 /sys/bus/soundwire/devices/sdw:.../dev-properties/clk_stop_mode1
23 /sys/bus/soundwire/devices/sdw:.../dev-properties/simple_clk_stop_capable
24 /sys/bus/soundwire/devices/sdw:.../dev-properties/clk_stop_timeout
25 /sys/bus/soundwire/devices/sdw:.../dev-properties/ch_prep_timeout
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H A Dsysfs-bus-soundwire-master1 What: /sys/bus/soundwire/devices/sdw-master-<N>/revision
2 /sys/bus/soundwire/devices/sdw-master-<N>/clk_stop_modes
3 /sys/bus/soundwire/devices/sdw-master-<N>/clk_freq
4 /sys/bus/soundwire/devices/sdw-master-<N>/clk_gears
5 /sys/bus/soundwire/devices/sdw-master-<N>/default_col
6 /sys/bus/soundwire/devices/sdw-master-<N>/default_frame_rate
7 /sys/bus/soundwire/devices/sdw-master-<N>/default_row
8 /sys/bus/soundwire/devices/sdw-master-<N>/dynamic_shape
9 /sys/bus/soundwire/devices/sdw-master-<N>/err_threshold
10 /sys/bus/soundwire/devices/sdw-master-<N>/max_clk_freq
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/linux/drivers/soundwire/
H A DKconfig3 # SoundWire subsystem configuration
6 menuconfig SOUNDWIRE config
7 tristate "SoundWire support"
10 SoundWire is a 2-Pin interface with data and clock line ratified
11 by the MIPI Alliance. SoundWire is used for transporting data
12 typically related to audio functions. SoundWire interface is
17 if SOUNDWIRE
19 comment "SoundWire Devices"
22 tristate "AMD SoundWire Manager driver"
26 SoundWire AMD Manager driver.
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H A DMakefile3 # Makefile for soundwire core
7 soundwire-bus-y := bus_type.o bus.o master.o slave.o mipi_disco.o stream.o \
9 obj-$(CONFIG_SOUNDWIRE) += soundwire-bus.o
11 soundwire-generic-allocation-objs := generic_bandwidth_allocation.o
12 obj-$(CONFIG_SOUNDWIRE_GENERIC_ALLOCATION) += soundwire-generic-allocation.o
15 soundwire-bus-y += debugfs.o
19 soundwire-bus-y += irq.o
23 soundwire-amd-y := amd_init.o amd_manager.o
24 obj-$(CONFIG_SOUNDWIRE_AMD) += soundwire-amd.o
27 soundwire-cadence-y := cadence_master.o
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H A Dbus_type.c7 #include <linux/soundwire/sdw.h>
8 #include <linux/soundwire/sdw_type.h>
14 * sdw_get_device_id - find the matching SoundWire device id
15 * @slave: SoundWire Slave Device
16 * @drv: SoundWire Slave Driver
76 .name = "soundwire",
193 * __sdw_register_driver() - register a SoundWire Slave driver
220 * sdw_unregister_driver() - unregisters the SoundWire Slave driver
244 MODULE_DESCRIPTION("SoundWire bus");
H A Dstream.c5 * stream.c - SoundWire Bus stream operations.
14 #include <linux/soundwire/sdw_registers.h>
15 #include <linux/soundwire/sdw.h>
16 #include <linux/soundwire/sdw_type.h>
21 * Array of supported rows and columns as per MIPI SoundWire Specification 1.1
965 dev_err(dev, "SoundWire: Invalid port number :%d\n", num); in sdw_slave_port_is_valid_range()
1240 * @stream: SoundWire stream
1316 * @stream: SoundWire stream
1320 * NOTE: This function is called from SoundWire stream ops and is
1339 * @stream: SoundWire stream
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H A Dintel_auxdevice.c5 * Soundwire Intel Manager Driver
18 #include <linux/soundwire/sdw_registers.h>
19 #include <linux/soundwire/sdw.h>
20 #include <linux/soundwire/sdw_intel.h>
29 * debug/config flags for the Intel SoundWire Master.
42 MODULE_PARM_DESC(sdw_md_flags, "SoundWire Intel Master device flags (0x0 all off)");
314 /* single controller for all SoundWire links */ in intel_link_probe()
356 "SoundWire master %d is disabled, will be ignored\n", in intel_link_probe()
380 "SoundWire master %d is disabled, ignoring\n", in intel_link_startup()
508 dev_dbg(dev, "SoundWire master %d is disabled or not-started, ignoring\n", in intel_link_process_wakeen_event()
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/linux/Documentation/devicetree/bindings/soundwire/
H A Dqcom,soundwire.yaml4 $id: http://devicetree.org/schemas/soundwire/qcom,soundwire.yaml#
7 title: Qualcomm SoundWire Controller
14 The Qualcomm SoundWire controller along with its board specific bus parameters.
19 - qcom,soundwire-v1.3.0
20 - qcom,soundwire-v1.5.0
21 - qcom,soundwire-v1.5.1
22 - qcom,soundwire-v1.6.0
23 - qcom,soundwire-v1.7.0
24 - qcom,soundwire-v2.0.0
32 - description: specify the SoundWire controller core.
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H A Dsoundwire-controller.yaml4 $id: http://devicetree.org/schemas/soundwire/soundwire-controller.yaml#
7 title: SoundWire Controller Common Properties
14 SoundWire busses can be described with a node for the SoundWire controller
15 device and a set of child nodes for each SoundWire slave on the bus.
19 pattern: "^soundwire(@.*)?$"
34 description: Is the textual representation of SoundWire Enumeration
35 address. compatible string should contain SoundWire Version ID,
39 Version ID is 1 nibble, number '0x1' represents SoundWire 1.0
40 and '0x2' represents SoundWire 1.1 and so on.
45 found in MIPI Alliance DisCo & SoundWire 1.0 Specifications.
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/linux/Documentation/driver-api/soundwire/
H A Dsummary.rst2 SoundWire Subsystem Summary
5 SoundWire is a new interface ratified in 2015 by the MIPI Alliance.
6 SoundWire is used for transporting data typically related to audio
7 functions. SoundWire interface is optimized to integrate audio devices in
10 SoundWire is a 2-pin multi-drop interface with data and clock line. It
12 Broad level key features of SoundWire interface include:
25 The SoundWire protocol supports up to eleven Slave interfaces. All the
35 Below figure shows an example of connectivity between a SoundWire Master and
58 The MIPI SoundWire specification uses the term 'device' to refer to a Master
62 device managed by a specific driver. The Linux SoundWire subsystem provides
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H A Derror_handling.rst2 SoundWire Error Handling
5 The SoundWire PHY was designed with care and errors on the bus are going to
19 data enabled by the SoundWire protocol, the location of the error will also
44 it transitions to a NotFinished value of zero. The MIPI SoundWire spec 1.1
45 does not define timeouts but the MIPI SoundWire DisCo document adds
60 Note that SoundWire does not provide a mechanism to detect illegal values
H A Dlocking.rst2 SoundWire Locking
5 This document explains locking mechanism of the SoundWire Bus. Bus uses
16 SoundWire Bus lock is a mutex and is part of Bus data structure
18 serialize each of the following operations(s) within SoundWire Bus instance.
29 SoundWire message transfer lock. This mutex is part of
31 transfers (read/write) within a SoundWire Bus instance.
/linux/include/linux/soundwire/
H A Dsdw_amd.h10 #include <linux/soundwire/sdw.h>
40 * @name: SoundWire stream name
56 * @mmio: SoundWire registers mmio base
58 * @amd_sdw_irq_thread: SoundWire manager irq workqueue
66 * @instance: SoundWire manager instance
67 * @quirks: SoundWire manager quirks
68 * @wake_en_mask: wake enable mask per SoundWire manager
70 * @power_mode_mask: flag interprets amd SoundWire manager power mode
103 * struct sdw_amd_acpi_info - Soundwire AMD information found in ACPI tables
105 * @count: maximum no of soundwire manager links supported on AMD platform.
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H A Dsdw.h36 * Note: The maximum row define in SoundWire spec 1.1 is 23. In order to
346 * struct sdw_slave_prop - SoundWire Slave properties
375 * registers introduced with the SoundWire 1.2 specification. SDCA devices
422 * @mclk_freq: clock reference passed to SoundWire Master, in Hz.
477 * @class_id: MIPI Class ID (defined starting with SoundWire 1.2 spec)
509 * The MIPI DisCo for SoundWire defines in addition the link_id as bits 51:48
538 * sdw_reg_bank - SoundWire register banks
539 * @SDW_BANK0: Soundwire register bank 0
540 * @SDW_BANK1: Soundwire register bank 1
637 * struct sdw_slave - SoundWire Slave
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/linux/sound/soc/codecs/
H A DKconfig835 depends on SOUNDWIRE || !SOUNDWIRE
845 depends on SOUNDWIRE || !SOUNDWIRE
854 depends on SOUNDWIRE
859 Enable support for Cirrus Logic CS35L56 boosted amplifier with SoundWire control
882 tristate "Cirrus Logic CS42L42 CODEC on Soundwire"
883 depends on SOUNDWIRE
886 Enable support for Cirrus Logic CS42L42 codec with Soundwire control
896 tristate "Cirrus Logic CS42L43 CODEC (SoundWire)"
900 CS42L43 PC CODEC over SoundWire.
1297 tristate "Analog Devices MAX98363 Soundwire Speaker Amplifier"
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H A Dcs35l56-sdw.c3 // CS35L56 ALSA SoC audio driver SoundWire binding
14 #include <linux/soundwire/sdw.h>
15 #include <linux/soundwire/sdw_registers.h>
16 #include <linux/soundwire/sdw_type.h>
23 /* Register addresses are offset when sent over SoundWire */
226 * Registers are big-endian on I2C and SPI but little-endian on SoundWire.
228 * SoundWire. Firmware files are always big-endian and are opaque blobs.
245 /* SoundWire UniqueId is used to index the calibration array */ in cs35l56_sdw_set_cal_index()
279 /* Enable SoundWire interrupts */ in cs35l56_sdw_init()
294 /* SoundWire core holds our pm_runtime when calling this function. */ in cs35l56_sdw_interrupt()
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/linux/sound/soc/amd/ps/
H A Dacp63.h8 #include <linux/soundwire/sdw_amd.h>
221 * sdw_dma_dev: platform device for SoundWire DMA controller
222 * @mach_dev: platform device for machine driver to support ACP PDM/SoundWire configuration
224 * @info: SoundWire AMD information found in ACPI tables
225 * @sdw: SoundWire context for all SoundWire manager instances
226 * @machine: ACPI machines for SoundWire interface
227 * @is_sdw_dev: flag set to true when any SoundWire manager instances are available
231 * @sdw_en_stat: flag set to true when any one of the SoundWire manager instance is enabled
234 * @sdw0-dma_intr_stat: DMA interrupt status array for SoundWire manager-SW0 instance
235 * @sdw_dma_intr_stat: DMA interrupt status array for SoundWire manager-SW1 instance
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/linux/include/sound/
H A Dsdw.h3 * linux/sound/sdw.h -- SoundWire helpers for ALSA/ASoC
10 #include <linux/soundwire/sdw.h>
19 * snd_sdw_params_to_config() - Conversion from hw_params to SoundWire config
23 * @stream_config: Stream configuration for the SoundWire audio stream
24 * @port_config: Port configuration for the SoundWire audio stream
27 * SoundWire configuration structures. The user will at a minimum need to also
/linux/sound/soc/qcom/
H A DKconfig156 depends on QCOM_APR && I2C && SOUNDWIRE
171 depends on QCOM_APR && SOUNDWIRE
183 depends on QCOM_APR && SOUNDWIRE
196 depends on SOUNDWIRE || SOUNDWIRE=n
210 depends on I2C && SOUNDWIRE
228 depends on QCOM_APR && SOUNDWIRE
/linux/sound/hda/
H A Dintel-sdw-acpi.c16 #include <linux/soundwire/sdw_intel.h>
27 MODULE_PARM_DESC(sdw_ctrl_addr, "Intel SoundWire Controller _ADR");
75 * hardware, but in that step we cannot assume SoundWire IP is in sdw_intel_scan_controller()
107 dev_warn(&adev->dev, "No SoundWire links detected\n"); in sdw_intel_scan_controller()
152 * device can be found, but only one of them is the SoundWire in sdw_intel_acpi_cb()
155 * SoundWire link so filter accordingly in sdw_intel_acpi_cb()
163 /* found the correct SoundWire controller */ in sdw_intel_acpi_cb()
171 * sdw_intel_acpi_scan() - SoundWire Intel init routine
204 MODULE_DESCRIPTION("Intel Soundwire ACPI helpers");
/linux/Documentation/devicetree/bindings/sound/
H A Dadi,max98363.yaml7 title: Analog Devices MAX98363 SoundWire Amplifier
13 The MAX98363 is a SoundWire input Class D mono amplifier that
14 supports MIPI SoundWire v1.2-compatible digital interface for
16 SoundWire peripheral device ID of MAX98363 is 0x3*019f836300
42 soundwire@3250000 {
H A Dqcom,wcd937x-sdw.yaml7 title: Qualcomm SoundWire Slave devices on WCD9370/WCD9375
14 It has RX and TX Soundwire slave devices. This bindings is for the
29 Supports maximum 4 tx soundwire ports.
47 Supports maximum 5 rx soundwire ports.
69 soundwire@3210000 {
80 soundwire@3230000 {
/linux/drivers/mfd/
H A Dcs42l43-sdw.c3 * CS42L43 SoundWire driver
18 #include <linux/soundwire/sdw.h>
19 #include <linux/soundwire/sdw_registers.h>
20 #include <linux/soundwire/sdw_type.h>
128 * just clearing up the additional Cirrus SoundWire registers that are in cs42l43_sdw_interrupt()
129 * not covered by the SoundWire framework or the IRQ handler itself. in cs42l43_sdw_interrupt()
151 "PLL active can't change SoundWire bus clock\n"); in cs42l43_sdw_bus_config()
220 MODULE_DESCRIPTION("CS42L43 SoundWire Driver");
/linux/sound/soc/amd/acp/
H A DKconfig123 tristate "AMD SOF Soundwire Machine Driver Support"
125 depends on SOUNDWIRE
134 This option enables SOF sound card support for SoundWire enabled
136 Say Y if you want to enable SoundWire based machine driver support
146 This options enables ACPI helper functions for SoundWire
/linux/sound/soc/sof/intel/
H A Dhda.c24 #include <linux/soundwire/sdw.h>
25 #include <linux/soundwire/sdw_intel.h>
50 * The default for SoundWire clock stop quirks is to power gate the IP
57 MODULE_PARM_DESC(sdw_clock_stop_quirks, "SOF SoundWire clock stop quirks");
183 * the SHIM and SoundWire register offsets are link-specific in hda_sdw_probe()
211 dev_err(sdev->dev, "error: SoundWire probe failed\n"); in hda_sdw_probe()
401 "error: could not startup SoundWire links\n"); in hda_dsp_post_fw_run()
592 /* Skip SoundWire if it is not supported */ in hda_init_caps()
596 /* scan SoundWire capabilities exposed by DSDT */ in hda_init_caps()
599 dev_dbg(sdev->dev, "skipping SoundWire, not detected with ACPI scan\n"); in hda_init_caps()
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