Merge remote-tracking branches 'asoc/topic/hisilicon', 'asoc/topic/iio', 'asoc/topic/max98373' and 'asoc/topic/max98926' into asoc-next
This commit is contained in:
Mark Brown
Коммит
2e015bfb54
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@ -0,0 +1,16 @@
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What: /sys/bus/iio/devices/iio:deviceX/in_voltage_spi_clk_freq
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KernelVersion: 4.14
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Contact: arnaud.pouliquen@st.com
|
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Description:
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For audio purpose only.
|
||||
Used by audio driver to set/get the spi input frequency.
|
||||
This is mandatory if DFSDM is slave on SPI bus, to
|
||||
provide information on the SPI clock frequency during runtime
|
||||
Notice that the SPI frequency should be a multiple of sample
|
||||
frequency to ensure the precision.
|
||||
if DFSDM input is SPI master
|
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Reading SPI clkout frequency,
|
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error on writing
|
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If DFSDM input is SPI Slave:
|
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Reading returns value previously set.
|
||||
Writing value before starting conversions.
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|
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@ -0,0 +1,13 @@
|
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Device-Tree bindings for sigma delta modulator
|
||||
|
||||
Required properties:
|
||||
- compatible: should be "ads1201", "sd-modulator". "sd-modulator" can be use
|
||||
as a generic SD modulator if modulator not specified in compatible list.
|
||||
- #io-channel-cells = <1>: See the IIO bindings section "IIO consumers".
|
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|
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Example node:
|
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|
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ads1202: adc@0 {
|
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compatible = "sd-modulator";
|
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#io-channel-cells = <1>;
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};
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@ -0,0 +1,128 @@
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STMicroelectronics STM32 DFSDM ADC device driver
|
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|
||||
|
||||
STM32 DFSDM ADC is a sigma delta analog-to-digital converter dedicated to
|
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interface external sigma delta modulators to STM32 micro controllers.
|
||||
It is mainly targeted for:
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- Sigma delta modulators (motor control, metering...)
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- PDM microphones (audio digital microphone)
|
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|
||||
It features up to 8 serial digital interfaces (SPI or Manchester) and
|
||||
up to 4 filters on stm32h7.
|
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|
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Each child node match with a filter instance.
|
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|
||||
Contents of a STM32 DFSDM root node:
|
||||
------------------------------------
|
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Required properties:
|
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- compatible: Should be "st,stm32h7-dfsdm".
|
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- reg: Offset and length of the DFSDM block register set.
|
||||
- clocks: IP and serial interfaces clocking. Should be set according
|
||||
to rcc clock ID and "clock-names".
|
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- clock-names: Input clock name "dfsdm" must be defined,
|
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"audio" is optional. If defined CLKOUT is based on the audio
|
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clock, else "dfsdm" is used.
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- #interrupt-cells = <1>;
|
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- #address-cells = <1>;
|
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- #size-cells = <0>;
|
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|
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Optional properties:
|
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- spi-max-frequency: Requested only for SPI master mode.
|
||||
SPI clock OUT frequency (Hz). This clock must be set according
|
||||
to "clock" property. Frequency must be a multiple of the rcc
|
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clock frequency. If not, SPI CLKOUT frequency will not be
|
||||
accurate.
|
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|
||||
Contents of a STM32 DFSDM child nodes:
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--------------------------------------
|
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|
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Required properties:
|
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- compatible: Must be:
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"st,stm32-dfsdm-adc" for sigma delta ADCs
|
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"st,stm32-dfsdm-dmic" for audio digital microphone.
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- reg: Specifies the DFSDM filter instance used.
|
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- interrupts: IRQ lines connected to each DFSDM filter instance.
|
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- st,adc-channels: List of single-ended channels muxed for this ADC.
|
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valid values:
|
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"st,stm32h7-dfsdm" compatibility: 0 to 7.
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- st,adc-channel-names: List of single-ended channel names.
|
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- st,filter-order: SinC filter order from 0 to 5.
|
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0: FastSinC
|
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[1-5]: order 1 to 5.
|
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For audio purpose it is recommended to use order 3 to 5.
|
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- #io-channel-cells = <1>: See the IIO bindings section "IIO consumers".
|
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|
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Required properties for "st,stm32-dfsdm-adc" compatibility:
|
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- io-channels: From common IIO binding. Used to pipe external sigma delta
|
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modulator or internal ADC output to DFSDM channel.
|
||||
This is not required for "st,stm32-dfsdm-pdm" compatibility as
|
||||
PDM microphone is binded in Audio DT node.
|
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|
||||
Required properties for "st,stm32-dfsdm-pdm" compatibility:
|
||||
- #sound-dai-cells: Must be set to 0.
|
||||
- dma: DMA controller phandle and DMA request line associated to the
|
||||
filter instance (specified by the field "reg")
|
||||
- dma-names: Must be "rx"
|
||||
|
||||
Optional properties:
|
||||
- st,adc-channel-types: Single-ended channel input type.
|
||||
- "SPI_R": SPI with data on rising edge (default)
|
||||
- "SPI_F": SPI with data on falling edge
|
||||
- "MANCH_R": manchester codec, rising edge = logic 0
|
||||
- "MANCH_F": manchester codec, falling edge = logic 1
|
||||
- st,adc-channel-clk-src: Conversion clock source.
|
||||
- "CLKIN": external SPI clock (CLKIN x)
|
||||
- "CLKOUT": internal SPI clock (CLKOUT) (default)
|
||||
- "CLKOUT_F": internal SPI clock divided by 2 (falling edge).
|
||||
- "CLKOUT_R": internal SPI clock divided by 2 (rising edge).
|
||||
|
||||
- st,adc-alt-channel: Must be defined if two sigma delta modulator are
|
||||
connected on same SPI input.
|
||||
If not set, channel n is connected to SPI input n.
|
||||
If set, channel n is connected to SPI input n + 1.
|
||||
|
||||
- st,filter0-sync: Set to 1 to synchronize with DFSDM filter instance 0.
|
||||
Used for multi microphones synchronization.
|
||||
|
||||
Example of a sigma delta adc connected on DFSDM SPI port 0
|
||||
and a pdm microphone connected on DFSDM SPI port 1:
|
||||
|
||||
ads1202: simple_sd_adc@0 {
|
||||
compatible = "ads1202";
|
||||
#io-channel-cells = <1>;
|
||||
};
|
||||
|
||||
dfsdm: dfsdm@40017000 {
|
||||
compatible = "st,stm32h7-dfsdm";
|
||||
reg = <0x40017000 0x400>;
|
||||
clocks = <&rcc DFSDM1_CK>;
|
||||
clock-names = "dfsdm";
|
||||
#interrupt-cells = <1>;
|
||||
#address-cells = <1>;
|
||||
#size-cells = <0>;
|
||||
|
||||
dfsdm_adc0: filter@0 {
|
||||
compatible = "st,stm32-dfsdm-adc";
|
||||
#io-channel-cells = <1>;
|
||||
reg = <0>;
|
||||
interrupts = <110>;
|
||||
st,adc-channels = <0>;
|
||||
st,adc-channel-names = "sd_adc0";
|
||||
st,adc-channel-types = "SPI_F";
|
||||
st,adc-channel-clk-src = "CLKOUT";
|
||||
io-channels = <&ads1202 0>;
|
||||
st,filter-order = <3>;
|
||||
};
|
||||
dfsdm_pdm1: filter@1 {
|
||||
compatible = "st,stm32-dfsdm-dmic";
|
||||
reg = <1>;
|
||||
interrupts = <111>;
|
||||
dmas = <&dmamux1 102 0x400 0x00>;
|
||||
dma-names = "rx";
|
||||
st,adc-channels = <1>;
|
||||
st,adc-channel-names = "dmic1";
|
||||
st,adc-channel-types = "SPI_R";
|
||||
st,adc-channel-clk-src = "CLKOUT";
|
||||
st,filter-order = <5>;
|
||||
};
|
||||
}
|
||||
|
|
@ -0,0 +1,40 @@
|
|||
Maxim Integrated MAX98373 Speaker Amplifier
|
||||
|
||||
This device supports I2C.
|
||||
|
||||
Required properties:
|
||||
|
||||
- compatible : "maxim,max98373"
|
||||
|
||||
- reg : the I2C address of the device.
|
||||
|
||||
Optional properties:
|
||||
|
||||
- maxim,vmon-slot-no : slot number used to send voltage information
|
||||
or in inteleave mode this will be used as
|
||||
interleave slot.
|
||||
slot range : 0 ~ 15, Default : 0
|
||||
|
||||
- maxim,imon-slot-no : slot number used to send current information
|
||||
slot range : 0 ~ 15, Default : 0
|
||||
|
||||
- maxim,spkfb-slot-no : slot number used to send speaker feedback information
|
||||
slot range : 0 ~ 15, Default : 0
|
||||
|
||||
- maxim,interleave-mode : For cases where a single combined channel
|
||||
for the I/V sense data is not sufficient, the device can also be configured
|
||||
to share a single data output channel on alternating frames.
|
||||
In this configuration, the current and voltage data will be frame interleaved
|
||||
on a single output channel.
|
||||
Boolean, define to enable the interleave mode, Default : false
|
||||
|
||||
Example:
|
||||
|
||||
codec: max98373@31 {
|
||||
compatible = "maxim,max98373";
|
||||
reg = <0x31>;
|
||||
maxim,vmon-slot-no = <0>;
|
||||
maxim,imon-slot-no = <1>;
|
||||
maxim,spkfb-slot-no = <2>;
|
||||
maxim,interleave-mode;
|
||||
};
|
||||
|
|
@ -0,0 +1,51 @@
|
|||
===========
|
||||
HW consumer
|
||||
===========
|
||||
An IIO device can be directly connected to another device in hardware. in this
|
||||
case the buffers between IIO provider and IIO consumer are handled by hardware.
|
||||
The Industrial I/O HW consumer offers a way to bond these IIO devices without
|
||||
software buffer for data. The implementation can be found under
|
||||
:file:`drivers/iio/buffer/hw-consumer.c`
|
||||
|
||||
|
||||
* struct :c:type:`iio_hw_consumer` — Hardware consumer structure
|
||||
* :c:func:`iio_hw_consumer_alloc` — Allocate IIO hardware consumer
|
||||
* :c:func:`iio_hw_consumer_free` — Free IIO hardware consumer
|
||||
* :c:func:`iio_hw_consumer_enable` — Enable IIO hardware consumer
|
||||
* :c:func:`iio_hw_consumer_disable` — Disable IIO hardware consumer
|
||||
|
||||
|
||||
HW consumer setup
|
||||
=================
|
||||
|
||||
As standard IIO device the implementation is based on IIO provider/consumer.
|
||||
A typical IIO HW consumer setup looks like this::
|
||||
|
||||
static struct iio_hw_consumer *hwc;
|
||||
|
||||
static const struct iio_info adc_info = {
|
||||
.read_raw = adc_read_raw,
|
||||
};
|
||||
|
||||
static int adc_read_raw(struct iio_dev *indio_dev,
|
||||
struct iio_chan_spec const *chan, int *val,
|
||||
int *val2, long mask)
|
||||
{
|
||||
ret = iio_hw_consumer_enable(hwc);
|
||||
|
||||
/* Acquire data */
|
||||
|
||||
ret = iio_hw_consumer_disable(hwc);
|
||||
}
|
||||
|
||||
static int adc_probe(struct platform_device *pdev)
|
||||
{
|
||||
hwc = devm_iio_hw_consumer_alloc(&iio->dev);
|
||||
}
|
||||
|
||||
More details
|
||||
============
|
||||
.. kernel-doc:: include/linux/iio/hw-consumer.h
|
||||
.. kernel-doc:: drivers/iio/buffer/industrialio-hw-consumer.c
|
||||
:export:
|
||||
|
||||
|
|
@ -15,3 +15,4 @@ Contents:
|
|||
buffers
|
||||
triggers
|
||||
triggered-buffers
|
||||
hw-consumer
|
||||
|
|
|
|||
|
|
@ -629,6 +629,18 @@ config SPEAR_ADC
|
|||
To compile this driver as a module, choose M here: the
|
||||
module will be called spear_adc.
|
||||
|
||||
config SD_ADC_MODULATOR
|
||||
tristate "Generic sigma delta modulator"
|
||||
depends on OF
|
||||
select IIO_BUFFER
|
||||
select IIO_TRIGGERED_BUFFER
|
||||
help
|
||||
Select this option to enables sigma delta modulator. This driver can
|
||||
support generic sigma delta modulators.
|
||||
|
||||
This driver can also be built as a module. If so, the module
|
||||
will be called sd_adc_modulator.
|
||||
|
||||
config STM32_ADC_CORE
|
||||
tristate "STMicroelectronics STM32 adc core"
|
||||
depends on ARCH_STM32 || COMPILE_TEST
|
||||
|
|
@ -656,6 +668,31 @@ config STM32_ADC
|
|||
This driver can also be built as a module. If so, the module
|
||||
will be called stm32-adc.
|
||||
|
||||
config STM32_DFSDM_CORE
|
||||
tristate "STMicroelectronics STM32 DFSDM core"
|
||||
depends on (ARCH_STM32 && OF) || COMPILE_TEST
|
||||
select REGMAP
|
||||
select REGMAP_MMIO
|
||||
help
|
||||
Select this option to enable the driver for STMicroelectronics
|
||||
STM32 digital filter for sigma delta converter.
|
||||
|
||||
This driver can also be built as a module. If so, the module
|
||||
will be called stm32-dfsdm-core.
|
||||
|
||||
config STM32_DFSDM_ADC
|
||||
tristate "STMicroelectronics STM32 dfsdm adc"
|
||||
depends on (ARCH_STM32 && OF) || COMPILE_TEST
|
||||
select STM32_DFSDM_CORE
|
||||
select REGMAP_MMIO
|
||||
select IIO_BUFFER_HW_CONSUMER
|
||||
help
|
||||
Select this option to support ADCSigma delta modulator for
|
||||
STMicroelectronics STM32 digital filter for sigma delta converter.
|
||||
|
||||
This driver can also be built as a module. If so, the module
|
||||
will be called stm32-dfsdm-adc.
|
||||
|
||||
config STX104
|
||||
tristate "Apex Embedded Systems STX104 driver"
|
||||
depends on PC104 && X86 && ISA_BUS_API
|
||||
|
|
|
|||
|
|
@ -64,6 +64,8 @@ obj-$(CONFIG_STX104) += stx104.o
|
|||
obj-$(CONFIG_SUN4I_GPADC) += sun4i-gpadc-iio.o
|
||||
obj-$(CONFIG_STM32_ADC_CORE) += stm32-adc-core.o
|
||||
obj-$(CONFIG_STM32_ADC) += stm32-adc.o
|
||||
obj-$(CONFIG_STM32_DFSDM_CORE) += stm32-dfsdm-core.o
|
||||
obj-$(CONFIG_STM32_DFSDM_ADC) += stm32-dfsdm-adc.o
|
||||
obj-$(CONFIG_TI_ADC081C) += ti-adc081c.o
|
||||
obj-$(CONFIG_TI_ADC0832) += ti-adc0832.o
|
||||
obj-$(CONFIG_TI_ADC084S021) += ti-adc084s021.o
|
||||
|
|
@ -82,3 +84,4 @@ obj-$(CONFIG_VF610_ADC) += vf610_adc.o
|
|||
obj-$(CONFIG_VIPERBOARD_ADC) += viperboard_adc.o
|
||||
xilinx-xadc-y := xilinx-xadc-core.o xilinx-xadc-events.o
|
||||
obj-$(CONFIG_XILINX_XADC) += xilinx-xadc.o
|
||||
obj-$(CONFIG_SD_ADC_MODULATOR) += sd_adc_modulator.o
|
||||
|
|
|
|||
|
|
@ -0,0 +1,68 @@
|
|||
// SPDX-License-Identifier: GPL-2.0
|
||||
/*
|
||||
* Generic sigma delta modulator driver
|
||||
*
|
||||
* Copyright (C) 2017, STMicroelectronics - All Rights Reserved
|
||||
* Author: Arnaud Pouliquen <arnaud.pouliquen@st.com>.
|
||||
*/
|
||||
|
||||
#include <linux/iio/iio.h>
|
||||
#include <linux/iio/triggered_buffer.h>
|
||||
#include <linux/module.h>
|
||||
#include <linux/of_device.h>
|
||||
|
||||
static const struct iio_info iio_sd_mod_iio_info;
|
||||
|
||||
static const struct iio_chan_spec iio_sd_mod_ch = {
|
||||
.type = IIO_VOLTAGE,
|
||||
.indexed = 1,
|
||||
.scan_type = {
|
||||
.sign = 'u',
|
||||
.realbits = 1,
|
||||
.shift = 0,
|
||||
},
|
||||
};
|
||||
|
||||
static int iio_sd_mod_probe(struct platform_device *pdev)
|
||||
{
|
||||
struct device *dev = &pdev->dev;
|
||||
struct iio_dev *iio;
|
||||
|
||||
iio = devm_iio_device_alloc(dev, 0);
|
||||
if (!iio)
|
||||
return -ENOMEM;
|
||||
|
||||
iio->dev.parent = dev;
|
||||
iio->dev.of_node = dev->of_node;
|
||||
iio->name = dev_name(dev);
|
||||
iio->info = &iio_sd_mod_iio_info;
|
||||
iio->modes = INDIO_BUFFER_HARDWARE;
|
||||
|
||||
iio->num_channels = 1;
|
||||
iio->channels = &iio_sd_mod_ch;
|
||||
|
||||
platform_set_drvdata(pdev, iio);
|
||||
|
||||
return devm_iio_device_register(&pdev->dev, iio);
|
||||
}
|
||||
|
||||
static const struct of_device_id sd_adc_of_match[] = {
|
||||
{ .compatible = "sd-modulator" },
|
||||
{ .compatible = "ads1201" },
|
||||
{ }
|
||||
};
|
||||
MODULE_DEVICE_TABLE(of, sd_adc_of_match);
|
||||
|
||||
static struct platform_driver iio_sd_mod_adc = {
|
||||
.driver = {
|
||||
.name = "iio_sd_adc_mod",
|
||||
.of_match_table = of_match_ptr(sd_adc_of_match),
|
||||
},
|
||||
.probe = iio_sd_mod_probe,
|
||||
};
|
||||
|
||||
module_platform_driver(iio_sd_mod_adc);
|
||||
|
||||
MODULE_DESCRIPTION("Basic sigma delta modulator");
|
||||
MODULE_AUTHOR("Arnaud Pouliquen <arnaud.pouliquen@st.com>");
|
||||
MODULE_LICENSE("GPL v2");
|
||||
Разница между файлами не показана из-за своего большого размера
Загрузить разницу
|
|
@ -0,0 +1,302 @@
|
|||
// SPDX-License-Identifier: GPL-2.0
|
||||
/*
|
||||
* This file is part the core part STM32 DFSDM driver
|
||||
*
|
||||
* Copyright (C) 2017, STMicroelectronics - All Rights Reserved
|
||||
* Author(s): Arnaud Pouliquen <arnaud.pouliquen@st.com> for STMicroelectronics.
|
||||
*/
|
||||
|
||||
#include <linux/clk.h>
|
||||
#include <linux/iio/iio.h>
|
||||
#include <linux/iio/sysfs.h>
|
||||
#include <linux/interrupt.h>
|
||||
#include <linux/module.h>
|
||||
#include <linux/of_device.h>
|
||||
#include <linux/regmap.h>
|
||||
#include <linux/slab.h>
|
||||
|
||||
#include "stm32-dfsdm.h"
|
||||
|
||||
struct stm32_dfsdm_dev_data {
|
||||
unsigned int num_filters;
|
||||
unsigned int num_channels;
|
||||
const struct regmap_config *regmap_cfg;
|
||||
};
|
||||
|
||||
#define STM32H7_DFSDM_NUM_FILTERS 4
|
||||
#define STM32H7_DFSDM_NUM_CHANNELS 8
|
||||
|
||||
static bool stm32_dfsdm_volatile_reg(struct device *dev, unsigned int reg)
|
||||
{
|
||||
if (reg < DFSDM_FILTER_BASE_ADR)
|
||||
return false;
|
||||
|
||||
/*
|
||||
* Mask is done on register to avoid to list registers of all
|
||||
* filter instances.
|
||||
*/
|
||||
switch (reg & DFSDM_FILTER_REG_MASK) {
|
||||
case DFSDM_CR1(0) & DFSDM_FILTER_REG_MASK:
|
||||
case DFSDM_ISR(0) & DFSDM_FILTER_REG_MASK:
|
||||
case DFSDM_JDATAR(0) & DFSDM_FILTER_REG_MASK:
|
||||
case DFSDM_RDATAR(0) & DFSDM_FILTER_REG_MASK:
|
||||
return true;
|
||||
}
|
||||
|
||||
return false;
|
||||
}
|
||||
|
||||
static const struct regmap_config stm32h7_dfsdm_regmap_cfg = {
|
||||
.reg_bits = 32,
|
||||
.val_bits = 32,
|
||||
.reg_stride = sizeof(u32),
|
||||
.max_register = 0x2B8,
|
||||
.volatile_reg = stm32_dfsdm_volatile_reg,
|
||||
.fast_io = true,
|
||||
};
|
||||
|
||||
static const struct stm32_dfsdm_dev_data stm32h7_dfsdm_data = {
|
||||
.num_filters = STM32H7_DFSDM_NUM_FILTERS,
|
||||
.num_channels = STM32H7_DFSDM_NUM_CHANNELS,
|
||||
.regmap_cfg = &stm32h7_dfsdm_regmap_cfg,
|
||||
};
|
||||
|
||||
struct dfsdm_priv {
|
||||
struct platform_device *pdev; /* platform device */
|
||||
|
||||
struct stm32_dfsdm dfsdm; /* common data exported for all instances */
|
||||
|
||||
unsigned int spi_clk_out_div; /* SPI clkout divider value */
|
||||
atomic_t n_active_ch; /* number of current active channels */
|
||||
|
||||
struct clk *clk; /* DFSDM clock */
|
||||
struct clk *aclk; /* audio clock */
|
||||
};
|
||||
|
||||
/**
|
||||
* stm32_dfsdm_start_dfsdm - start global dfsdm interface.
|
||||
*
|
||||
* Enable interface if n_active_ch is not null.
|
||||
* @dfsdm: Handle used to retrieve dfsdm context.
|
||||
*/
|
||||
int stm32_dfsdm_start_dfsdm(struct stm32_dfsdm *dfsdm)
|
||||
{
|
||||
struct dfsdm_priv *priv = container_of(dfsdm, struct dfsdm_priv, dfsdm);
|
||||
struct device *dev = &priv->pdev->dev;
|
||||
unsigned int clk_div = priv->spi_clk_out_div;
|
||||
int ret;
|
||||
|
||||
if (atomic_inc_return(&priv->n_active_ch) == 1) {
|
||||
ret = clk_prepare_enable(priv->clk);
|
||||
if (ret < 0) {
|
||||
dev_err(dev, "Failed to start clock\n");
|
||||
goto error_ret;
|
||||
}
|
||||
if (priv->aclk) {
|
||||
ret = clk_prepare_enable(priv->aclk);
|
||||
if (ret < 0) {
|
||||
dev_err(dev, "Failed to start audio clock\n");
|
||||
goto disable_clk;
|
||||
}
|
||||
}
|
||||
|
||||
/* Output the SPI CLKOUT (if clk_div == 0 clock if OFF) */
|
||||
ret = regmap_update_bits(dfsdm->regmap, DFSDM_CHCFGR1(0),
|
||||
DFSDM_CHCFGR1_CKOUTDIV_MASK,
|
||||
DFSDM_CHCFGR1_CKOUTDIV(clk_div));
|
||||
if (ret < 0)
|
||||
goto disable_aclk;
|
||||
|
||||
/* Global enable of DFSDM interface */
|
||||
ret = regmap_update_bits(dfsdm->regmap, DFSDM_CHCFGR1(0),
|
||||
DFSDM_CHCFGR1_DFSDMEN_MASK,
|
||||
DFSDM_CHCFGR1_DFSDMEN(1));
|
||||
if (ret < 0)
|
||||
goto disable_aclk;
|
||||
}
|
||||
|
||||
dev_dbg(dev, "%s: n_active_ch %d\n", __func__,
|
||||
atomic_read(&priv->n_active_ch));
|
||||
|
||||
return 0;
|
||||
|
||||
disable_aclk:
|
||||
clk_disable_unprepare(priv->aclk);
|
||||
disable_clk:
|
||||
clk_disable_unprepare(priv->clk);
|
||||
|
||||
error_ret:
|
||||
atomic_dec(&priv->n_active_ch);
|
||||
|
||||
return ret;
|
||||
}
|
||||
EXPORT_SYMBOL_GPL(stm32_dfsdm_start_dfsdm);
|
||||
|
||||
/**
|
||||
* stm32_dfsdm_stop_dfsdm - stop global DFSDM interface.
|
||||
*
|
||||
* Disable interface if n_active_ch is null
|
||||
* @dfsdm: Handle used to retrieve dfsdm context.
|
||||
*/
|
||||
int stm32_dfsdm_stop_dfsdm(struct stm32_dfsdm *dfsdm)
|
||||
{
|
||||
struct dfsdm_priv *priv = container_of(dfsdm, struct dfsdm_priv, dfsdm);
|
||||
int ret;
|
||||
|
||||
if (atomic_dec_and_test(&priv->n_active_ch)) {
|
||||
/* Global disable of DFSDM interface */
|
||||
ret = regmap_update_bits(dfsdm->regmap, DFSDM_CHCFGR1(0),
|
||||
DFSDM_CHCFGR1_DFSDMEN_MASK,
|
||||
DFSDM_CHCFGR1_DFSDMEN(0));
|
||||
if (ret < 0)
|
||||
return ret;
|
||||
|
||||
/* Stop SPI CLKOUT */
|
||||
ret = regmap_update_bits(dfsdm->regmap, DFSDM_CHCFGR1(0),
|
||||
DFSDM_CHCFGR1_CKOUTDIV_MASK,
|
||||
DFSDM_CHCFGR1_CKOUTDIV(0));
|
||||
if (ret < 0)
|
||||
return ret;
|
||||
|
||||
clk_disable_unprepare(priv->clk);
|
||||
if (priv->aclk)
|
||||
clk_disable_unprepare(priv->aclk);
|
||||
}
|
||||
dev_dbg(&priv->pdev->dev, "%s: n_active_ch %d\n", __func__,
|
||||
atomic_read(&priv->n_active_ch));
|
||||
|
||||
return 0;
|
||||
}
|
||||
EXPORT_SYMBOL_GPL(stm32_dfsdm_stop_dfsdm);
|
||||
|
||||
static int stm32_dfsdm_parse_of(struct platform_device *pdev,
|
||||
struct dfsdm_priv *priv)
|
||||
{
|
||||
struct device_node *node = pdev->dev.of_node;
|
||||
struct resource *res;
|
||||
unsigned long clk_freq;
|
||||
unsigned int spi_freq, rem;
|
||||
int ret;
|
||||
|
||||
if (!node)
|
||||
return -EINVAL;
|
||||
|
||||
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
|
||||
if (!res) {
|
||||
dev_err(&pdev->dev, "Failed to get memory resource\n");
|
||||
return -ENODEV;
|
||||
}
|
||||
priv->dfsdm.phys_base = res->start;
|
||||
priv->dfsdm.base = devm_ioremap_resource(&pdev->dev, res);
|
||||
|
||||
/*
|
||||
* "dfsdm" clock is mandatory for DFSDM peripheral clocking.
|
||||
* "dfsdm" or "audio" clocks can be used as source clock for
|
||||
* the SPI clock out signal and internal processing, depending
|
||||
* on use case.
|
||||
*/
|
||||
priv->clk = devm_clk_get(&pdev->dev, "dfsdm");
|
||||
if (IS_ERR(priv->clk)) {
|
||||
dev_err(&pdev->dev, "No stm32_dfsdm_clk clock found\n");
|
||||
return -EINVAL;
|
||||
}
|
||||
|
||||
priv->aclk = devm_clk_get(&pdev->dev, "audio");
|
||||
if (IS_ERR(priv->aclk))
|
||||
priv->aclk = NULL;
|
||||
|
||||
if (priv->aclk)
|
||||
clk_freq = clk_get_rate(priv->aclk);
|
||||
else
|
||||
clk_freq = clk_get_rate(priv->clk);
|
||||
|
||||
/* SPI clock out frequency */
|
||||
ret = of_property_read_u32(pdev->dev.of_node, "spi-max-frequency",
|
||||
&spi_freq);
|
||||
if (ret < 0) {
|
||||
/* No SPI master mode */
|
||||
return 0;
|
||||
}
|
||||
|
||||
priv->spi_clk_out_div = div_u64_rem(clk_freq, spi_freq, &rem) - 1;
|
||||
priv->dfsdm.spi_master_freq = spi_freq;
|
||||
|
||||
if (rem) {
|
||||
dev_warn(&pdev->dev, "SPI clock not accurate\n");
|
||||
dev_warn(&pdev->dev, "%ld = %d * %d + %d\n",
|
||||
clk_freq, spi_freq, priv->spi_clk_out_div + 1, rem);
|
||||
}
|
||||
|
||||
return 0;
|
||||
};
|
||||
|
||||
static const struct of_device_id stm32_dfsdm_of_match[] = {
|
||||
{
|
||||
.compatible = "st,stm32h7-dfsdm",
|
||||
.data = &stm32h7_dfsdm_data,
|
||||
},
|
||||
{}
|
||||
};
|
||||
MODULE_DEVICE_TABLE(of, stm32_dfsdm_of_match);
|
||||
|
||||
static int stm32_dfsdm_probe(struct platform_device *pdev)
|
||||
{
|
||||
struct dfsdm_priv *priv;
|
||||
const struct stm32_dfsdm_dev_data *dev_data;
|
||||
struct stm32_dfsdm *dfsdm;
|
||||
int ret;
|
||||
|
||||
priv = devm_kzalloc(&pdev->dev, sizeof(*priv), GFP_KERNEL);
|
||||
if (!priv)
|
||||
return -ENOMEM;
|
||||
|
||||
priv->pdev = pdev;
|
||||
|
||||
dev_data = of_device_get_match_data(&pdev->dev);
|
||||
|
||||
dfsdm = &priv->dfsdm;
|
||||
dfsdm->fl_list = devm_kcalloc(&pdev->dev, dev_data->num_filters,
|
||||
sizeof(*dfsdm->fl_list), GFP_KERNEL);
|
||||
if (!dfsdm->fl_list)
|
||||
return -ENOMEM;
|
||||
|
||||
dfsdm->num_fls = dev_data->num_filters;
|
||||
dfsdm->ch_list = devm_kcalloc(&pdev->dev, dev_data->num_channels,
|
||||
sizeof(*dfsdm->ch_list),
|
||||
GFP_KERNEL);
|
||||
if (!dfsdm->ch_list)
|
||||
return -ENOMEM;
|
||||
dfsdm->num_chs = dev_data->num_channels;
|
||||
|
||||
ret = stm32_dfsdm_parse_of(pdev, priv);
|
||||
if (ret < 0)
|
||||
return ret;
|
||||
|
||||
dfsdm->regmap = devm_regmap_init_mmio_clk(&pdev->dev, "dfsdm",
|
||||
dfsdm->base,
|
||||
&stm32h7_dfsdm_regmap_cfg);
|
||||
if (IS_ERR(dfsdm->regmap)) {
|
||||
ret = PTR_ERR(dfsdm->regmap);
|
||||
dev_err(&pdev->dev, "%s: Failed to allocate regmap: %d\n",
|
||||
__func__, ret);
|
||||
return ret;
|
||||
}
|
||||
|
||||
platform_set_drvdata(pdev, dfsdm);
|
||||
|
||||
return devm_of_platform_populate(&pdev->dev);
|
||||
}
|
||||
|
||||
static struct platform_driver stm32_dfsdm_driver = {
|
||||
.probe = stm32_dfsdm_probe,
|
||||
.driver = {
|
||||
.name = "stm32-dfsdm",
|
||||
.of_match_table = stm32_dfsdm_of_match,
|
||||
},
|
||||
};
|
||||
|
||||
module_platform_driver(stm32_dfsdm_driver);
|
||||
|
||||
MODULE_AUTHOR("Arnaud Pouliquen <arnaud.pouliquen@st.com>");
|
||||
MODULE_DESCRIPTION("STMicroelectronics STM32 dfsdm driver");
|
||||
MODULE_LICENSE("GPL v2");
|
||||
|
|
@ -0,0 +1,310 @@
|
|||
/* SPDX-License-Identifier: GPL-2.0 */
|
||||
/*
|
||||
* This file is part of STM32 DFSDM driver
|
||||
*
|
||||
* Copyright (C) 2017, STMicroelectronics - All Rights Reserved
|
||||
* Author(s): Arnaud Pouliquen <arnaud.pouliquen@st.com>.
|
||||
*/
|
||||
|
||||
#ifndef MDF_STM32_DFSDM__H
|
||||
#define MDF_STM32_DFSDM__H
|
||||
|
||||
#include <linux/bitfield.h>
|
||||
|
||||
/*
|
||||
* STM32 DFSDM - global register map
|
||||
* ________________________________________________________
|
||||
* | Offset | Registers block |
|
||||
* --------------------------------------------------------
|
||||
* | 0x000 | CHANNEL 0 + COMMON CHANNEL FIELDS |
|
||||
* --------------------------------------------------------
|
||||
* | 0x020 | CHANNEL 1 |
|
||||
* --------------------------------------------------------
|
||||
* | ... | ..... |
|
||||
* --------------------------------------------------------
|
||||
* | 0x0E0 | CHANNEL 7 |
|
||||
* --------------------------------------------------------
|
||||
* | 0x100 | FILTER 0 + COMMON FILTER FIELDs |
|
||||
* --------------------------------------------------------
|
||||
* | 0x200 | FILTER 1 |
|
||||
* --------------------------------------------------------
|
||||
* | 0x300 | FILTER 2 |
|
||||
* --------------------------------------------------------
|
||||
* | 0x400 | FILTER 3 |
|
||||
* --------------------------------------------------------
|
||||
*/
|
||||
|
||||
/*
|
||||
* Channels register definitions
|
||||
*/
|
||||
#define DFSDM_CHCFGR1(y) ((y) * 0x20 + 0x00)
|
||||
#define DFSDM_CHCFGR2(y) ((y) * 0x20 + 0x04)
|
||||
#define DFSDM_AWSCDR(y) ((y) * 0x20 + 0x08)
|
||||
#define DFSDM_CHWDATR(y) ((y) * 0x20 + 0x0C)
|
||||
#define DFSDM_CHDATINR(y) ((y) * 0x20 + 0x10)
|
||||
|
||||
/* CHCFGR1: Channel configuration register 1 */
|
||||
#define DFSDM_CHCFGR1_SITP_MASK GENMASK(1, 0)
|
||||
#define DFSDM_CHCFGR1_SITP(v) FIELD_PREP(DFSDM_CHCFGR1_SITP_MASK, v)
|
||||
#define DFSDM_CHCFGR1_SPICKSEL_MASK GENMASK(3, 2)
|
||||
#define DFSDM_CHCFGR1_SPICKSEL(v) FIELD_PREP(DFSDM_CHCFGR1_SPICKSEL_MASK, v)
|
||||
#define DFSDM_CHCFGR1_SCDEN_MASK BIT(5)
|
||||
#define DFSDM_CHCFGR1_SCDEN(v) FIELD_PREP(DFSDM_CHCFGR1_SCDEN_MASK, v)
|
||||
#define DFSDM_CHCFGR1_CKABEN_MASK BIT(6)
|
||||
#define DFSDM_CHCFGR1_CKABEN(v) FIELD_PREP(DFSDM_CHCFGR1_CKABEN_MASK, v)
|
||||
#define DFSDM_CHCFGR1_CHEN_MASK BIT(7)
|
||||
#define DFSDM_CHCFGR1_CHEN(v) FIELD_PREP(DFSDM_CHCFGR1_CHEN_MASK, v)
|
||||
#define DFSDM_CHCFGR1_CHINSEL_MASK BIT(8)
|
||||
#define DFSDM_CHCFGR1_CHINSEL(v) FIELD_PREP(DFSDM_CHCFGR1_CHINSEL_MASK, v)
|
||||
#define DFSDM_CHCFGR1_DATMPX_MASK GENMASK(13, 12)
|
||||
#define DFSDM_CHCFGR1_DATMPX(v) FIELD_PREP(DFSDM_CHCFGR1_DATMPX_MASK, v)
|
||||
#define DFSDM_CHCFGR1_DATPACK_MASK GENMASK(15, 14)
|
||||
#define DFSDM_CHCFGR1_DATPACK(v) FIELD_PREP(DFSDM_CHCFGR1_DATPACK_MASK, v)
|
||||
#define DFSDM_CHCFGR1_CKOUTDIV_MASK GENMASK(23, 16)
|
||||
#define DFSDM_CHCFGR1_CKOUTDIV(v) FIELD_PREP(DFSDM_CHCFGR1_CKOUTDIV_MASK, v)
|
||||
#define DFSDM_CHCFGR1_CKOUTSRC_MASK BIT(30)
|
||||
#define DFSDM_CHCFGR1_CKOUTSRC(v) FIELD_PREP(DFSDM_CHCFGR1_CKOUTSRC_MASK, v)
|
||||
#define DFSDM_CHCFGR1_DFSDMEN_MASK BIT(31)
|
||||
#define DFSDM_CHCFGR1_DFSDMEN(v) FIELD_PREP(DFSDM_CHCFGR1_DFSDMEN_MASK, v)
|
||||
|
||||
/* CHCFGR2: Channel configuration register 2 */
|
||||
#define DFSDM_CHCFGR2_DTRBS_MASK GENMASK(7, 3)
|
||||
#define DFSDM_CHCFGR2_DTRBS(v) FIELD_PREP(DFSDM_CHCFGR2_DTRBS_MASK, v)
|
||||
#define DFSDM_CHCFGR2_OFFSET_MASK GENMASK(31, 8)
|
||||
#define DFSDM_CHCFGR2_OFFSET(v) FIELD_PREP(DFSDM_CHCFGR2_OFFSET_MASK, v)
|
||||
|
||||
/* AWSCDR: Channel analog watchdog and short circuit detector */
|
||||
#define DFSDM_AWSCDR_SCDT_MASK GENMASK(7, 0)
|
||||
#define DFSDM_AWSCDR_SCDT(v) FIELD_PREP(DFSDM_AWSCDR_SCDT_MASK, v)
|
||||
#define DFSDM_AWSCDR_BKSCD_MASK GENMASK(15, 12)
|
||||
#define DFSDM_AWSCDR_BKSCD(v) FIELD_PREP(DFSDM_AWSCDR_BKSCD_MASK, v)
|
||||
#define DFSDM_AWSCDR_AWFOSR_MASK GENMASK(20, 16)
|
||||
#define DFSDM_AWSCDR_AWFOSR(v) FIELD_PREP(DFSDM_AWSCDR_AWFOSR_MASK, v)
|
||||
#define DFSDM_AWSCDR_AWFORD_MASK GENMASK(23, 22)
|
||||
#define DFSDM_AWSCDR_AWFORD(v) FIELD_PREP(DFSDM_AWSCDR_AWFORD_MASK, v)
|
||||
|
||||
/*
|
||||
* Filters register definitions
|
||||
*/
|
||||
#define DFSDM_FILTER_BASE_ADR 0x100
|
||||
#define DFSDM_FILTER_REG_MASK 0x7F
|
||||
#define DFSDM_FILTER_X_BASE_ADR(x) ((x) * 0x80 + DFSDM_FILTER_BASE_ADR)
|
||||
|
||||
#define DFSDM_CR1(x) (DFSDM_FILTER_X_BASE_ADR(x) + 0x00)
|
||||
#define DFSDM_CR2(x) (DFSDM_FILTER_X_BASE_ADR(x) + 0x04)
|
||||
#define DFSDM_ISR(x) (DFSDM_FILTER_X_BASE_ADR(x) + 0x08)
|
||||
#define DFSDM_ICR(x) (DFSDM_FILTER_X_BASE_ADR(x) + 0x0C)
|
||||
#define DFSDM_JCHGR(x) (DFSDM_FILTER_X_BASE_ADR(x) + 0x10)
|
||||
#define DFSDM_FCR(x) (DFSDM_FILTER_X_BASE_ADR(x) + 0x14)
|
||||
#define DFSDM_JDATAR(x) (DFSDM_FILTER_X_BASE_ADR(x) + 0x18)
|
||||
#define DFSDM_RDATAR(x) (DFSDM_FILTER_X_BASE_ADR(x) + 0x1C)
|
||||
#define DFSDM_AWHTR(x) (DFSDM_FILTER_X_BASE_ADR(x) + 0x20)
|
||||
#define DFSDM_AWLTR(x) (DFSDM_FILTER_X_BASE_ADR(x) + 0x24)
|
||||
#define DFSDM_AWSR(x) (DFSDM_FILTER_X_BASE_ADR(x) + 0x28)
|
||||
#define DFSDM_AWCFR(x) (DFSDM_FILTER_X_BASE_ADR(x) + 0x2C)
|
||||
#define DFSDM_EXMAX(x) (DFSDM_FILTER_X_BASE_ADR(x) + 0x30)
|
||||
#define DFSDM_EXMIN(x) (DFSDM_FILTER_X_BASE_ADR(x) + 0x34)
|
||||
#define DFSDM_CNVTIMR(x) (DFSDM_FILTER_X_BASE_ADR(x) + 0x38)
|
||||
|
||||
/* CR1 Control register 1 */
|
||||
#define DFSDM_CR1_DFEN_MASK BIT(0)
|
||||
#define DFSDM_CR1_DFEN(v) FIELD_PREP(DFSDM_CR1_DFEN_MASK, v)
|
||||
#define DFSDM_CR1_JSWSTART_MASK BIT(1)
|
||||
#define DFSDM_CR1_JSWSTART(v) FIELD_PREP(DFSDM_CR1_JSWSTART_MASK, v)
|
||||
#define DFSDM_CR1_JSYNC_MASK BIT(3)
|
||||
#define DFSDM_CR1_JSYNC(v) FIELD_PREP(DFSDM_CR1_JSYNC_MASK, v)
|
||||
#define DFSDM_CR1_JSCAN_MASK BIT(4)
|
||||
#define DFSDM_CR1_JSCAN(v) FIELD_PREP(DFSDM_CR1_JSCAN_MASK, v)
|
||||
#define DFSDM_CR1_JDMAEN_MASK BIT(5)
|
||||
#define DFSDM_CR1_JDMAEN(v) FIELD_PREP(DFSDM_CR1_JDMAEN_MASK, v)
|
||||
#define DFSDM_CR1_JEXTSEL_MASK GENMASK(12, 8)
|
||||
#define DFSDM_CR1_JEXTSEL(v) FIELD_PREP(DFSDM_CR1_JEXTSEL_MASK, v)
|
||||
#define DFSDM_CR1_JEXTEN_MASK GENMASK(14, 13)
|
||||
#define DFSDM_CR1_JEXTEN(v) FIELD_PREP(DFSDM_CR1_JEXTEN_MASK, v)
|
||||
#define DFSDM_CR1_RSWSTART_MASK BIT(17)
|
||||
#define DFSDM_CR1_RSWSTART(v) FIELD_PREP(DFSDM_CR1_RSWSTART_MASK, v)
|
||||
#define DFSDM_CR1_RCONT_MASK BIT(18)
|
||||
#define DFSDM_CR1_RCONT(v) FIELD_PREP(DFSDM_CR1_RCONT_MASK, v)
|
||||
#define DFSDM_CR1_RSYNC_MASK BIT(19)
|
||||
#define DFSDM_CR1_RSYNC(v) FIELD_PREP(DFSDM_CR1_RSYNC_MASK, v)
|
||||
#define DFSDM_CR1_RDMAEN_MASK BIT(21)
|
||||
#define DFSDM_CR1_RDMAEN(v) FIELD_PREP(DFSDM_CR1_RDMAEN_MASK, v)
|
||||
#define DFSDM_CR1_RCH_MASK GENMASK(26, 24)
|
||||
#define DFSDM_CR1_RCH(v) FIELD_PREP(DFSDM_CR1_RCH_MASK, v)
|
||||
#define DFSDM_CR1_FAST_MASK BIT(29)
|
||||
#define DFSDM_CR1_FAST(v) FIELD_PREP(DFSDM_CR1_FAST_MASK, v)
|
||||
#define DFSDM_CR1_AWFSEL_MASK BIT(30)
|
||||
#define DFSDM_CR1_AWFSEL(v) FIELD_PREP(DFSDM_CR1_AWFSEL_MASK, v)
|
||||
|
||||
/* CR2: Control register 2 */
|
||||
#define DFSDM_CR2_IE_MASK GENMASK(6, 0)
|
||||
#define DFSDM_CR2_IE(v) FIELD_PREP(DFSDM_CR2_IE_MASK, v)
|
||||
#define DFSDM_CR2_JEOCIE_MASK BIT(0)
|
||||
#define DFSDM_CR2_JEOCIE(v) FIELD_PREP(DFSDM_CR2_JEOCIE_MASK, v)
|
||||
#define DFSDM_CR2_REOCIE_MASK BIT(1)
|
||||
#define DFSDM_CR2_REOCIE(v) FIELD_PREP(DFSDM_CR2_REOCIE_MASK, v)
|
||||
#define DFSDM_CR2_JOVRIE_MASK BIT(2)
|
||||
#define DFSDM_CR2_JOVRIE(v) FIELD_PREP(DFSDM_CR2_JOVRIE_MASK, v)
|
||||
#define DFSDM_CR2_ROVRIE_MASK BIT(3)
|
||||
#define DFSDM_CR2_ROVRIE(v) FIELD_PREP(DFSDM_CR2_ROVRIE_MASK, v)
|
||||
#define DFSDM_CR2_AWDIE_MASK BIT(4)
|
||||
#define DFSDM_CR2_AWDIE(v) FIELD_PREP(DFSDM_CR2_AWDIE_MASK, v)
|
||||
#define DFSDM_CR2_SCDIE_MASK BIT(5)
|
||||
#define DFSDM_CR2_SCDIE(v) FIELD_PREP(DFSDM_CR2_SCDIE_MASK, v)
|
||||
#define DFSDM_CR2_CKABIE_MASK BIT(6)
|
||||
#define DFSDM_CR2_CKABIE(v) FIELD_PREP(DFSDM_CR2_CKABIE_MASK, v)
|
||||
#define DFSDM_CR2_EXCH_MASK GENMASK(15, 8)
|
||||
#define DFSDM_CR2_EXCH(v) FIELD_PREP(DFSDM_CR2_EXCH_MASK, v)
|
||||
#define DFSDM_CR2_AWDCH_MASK GENMASK(23, 16)
|
||||
#define DFSDM_CR2_AWDCH(v) FIELD_PREP(DFSDM_CR2_AWDCH_MASK, v)
|
||||
|
||||
/* ISR: Interrupt status register */
|
||||
#define DFSDM_ISR_JEOCF_MASK BIT(0)
|
||||
#define DFSDM_ISR_JEOCF(v) FIELD_PREP(DFSDM_ISR_JEOCF_MASK, v)
|
||||
#define DFSDM_ISR_REOCF_MASK BIT(1)
|
||||
#define DFSDM_ISR_REOCF(v) FIELD_PREP(DFSDM_ISR_REOCF_MASK, v)
|
||||
#define DFSDM_ISR_JOVRF_MASK BIT(2)
|
||||
#define DFSDM_ISR_JOVRF(v) FIELD_PREP(DFSDM_ISR_JOVRF_MASK, v)
|
||||
#define DFSDM_ISR_ROVRF_MASK BIT(3)
|
||||
#define DFSDM_ISR_ROVRF(v) FIELD_PREP(DFSDM_ISR_ROVRF_MASK, v)
|
||||
#define DFSDM_ISR_AWDF_MASK BIT(4)
|
||||
#define DFSDM_ISR_AWDF(v) FIELD_PREP(DFSDM_ISR_AWDF_MASK, v)
|
||||
#define DFSDM_ISR_JCIP_MASK BIT(13)
|
||||
#define DFSDM_ISR_JCIP(v) FIELD_PREP(DFSDM_ISR_JCIP_MASK, v)
|
||||
#define DFSDM_ISR_RCIP_MASK BIT(14)
|
||||
#define DFSDM_ISR_RCIP(v) FIELD_PREP(DFSDM_ISR_RCIP, v)
|
||||
#define DFSDM_ISR_CKABF_MASK GENMASK(23, 16)
|
||||
#define DFSDM_ISR_CKABF(v) FIELD_PREP(DFSDM_ISR_CKABF_MASK, v)
|
||||
#define DFSDM_ISR_SCDF_MASK GENMASK(31, 24)
|
||||
#define DFSDM_ISR_SCDF(v) FIELD_PREP(DFSDM_ISR_SCDF_MASK, v)
|
||||
|
||||
/* ICR: Interrupt flag clear register */
|
||||
#define DFSDM_ICR_CLRJOVRF_MASK BIT(2)
|
||||
#define DFSDM_ICR_CLRJOVRF(v) FIELD_PREP(DFSDM_ICR_CLRJOVRF_MASK, v)
|
||||
#define DFSDM_ICR_CLRROVRF_MASK BIT(3)
|
||||
#define DFSDM_ICR_CLRROVRF(v) FIELD_PREP(DFSDM_ICR_CLRROVRF_MASK, v)
|
||||
#define DFSDM_ICR_CLRCKABF_MASK GENMASK(23, 16)
|
||||
#define DFSDM_ICR_CLRCKABF(v) FIELD_PREP(DFSDM_ICR_CLRCKABF_MASK, v)
|
||||
#define DFSDM_ICR_CLRCKABF_CH_MASK(y) BIT(16 + (y))
|
||||
#define DFSDM_ICR_CLRCKABF_CH(v, y) \
|
||||
(((v) << (16 + (y))) & DFSDM_ICR_CLRCKABF_CH_MASK(y))
|
||||
#define DFSDM_ICR_CLRSCDF_MASK GENMASK(31, 24)
|
||||
#define DFSDM_ICR_CLRSCDF(v) FIELD_PREP(DFSDM_ICR_CLRSCDF_MASK, v)
|
||||
#define DFSDM_ICR_CLRSCDF_CH_MASK(y) BIT(24 + (y))
|
||||
#define DFSDM_ICR_CLRSCDF_CH(v, y) \
|
||||
(((v) << (24 + (y))) & DFSDM_ICR_CLRSCDF_MASK(y))
|
||||
|
||||
/* FCR: Filter control register */
|
||||
#define DFSDM_FCR_IOSR_MASK GENMASK(7, 0)
|
||||
#define DFSDM_FCR_IOSR(v) FIELD_PREP(DFSDM_FCR_IOSR_MASK, v)
|
||||
#define DFSDM_FCR_FOSR_MASK GENMASK(25, 16)
|
||||
#define DFSDM_FCR_FOSR(v) FIELD_PREP(DFSDM_FCR_FOSR_MASK, v)
|
||||
#define DFSDM_FCR_FORD_MASK GENMASK(31, 29)
|
||||
#define DFSDM_FCR_FORD(v) FIELD_PREP(DFSDM_FCR_FORD_MASK, v)
|
||||
|
||||
/* RDATAR: Filter data register for regular channel */
|
||||
#define DFSDM_DATAR_CH_MASK GENMASK(2, 0)
|
||||
#define DFSDM_DATAR_DATA_OFFSET 8
|
||||
#define DFSDM_DATAR_DATA_MASK GENMASK(31, DFSDM_DATAR_DATA_OFFSET)
|
||||
|
||||
/* AWLTR: Filter analog watchdog low threshold register */
|
||||
#define DFSDM_AWLTR_BKAWL_MASK GENMASK(3, 0)
|
||||
#define DFSDM_AWLTR_BKAWL(v) FIELD_PREP(DFSDM_AWLTR_BKAWL_MASK, v)
|
||||
#define DFSDM_AWLTR_AWLT_MASK GENMASK(31, 8)
|
||||
#define DFSDM_AWLTR_AWLT(v) FIELD_PREP(DFSDM_AWLTR_AWLT_MASK, v)
|
||||
|
||||
/* AWHTR: Filter analog watchdog low threshold register */
|
||||
#define DFSDM_AWHTR_BKAWH_MASK GENMASK(3, 0)
|
||||
#define DFSDM_AWHTR_BKAWH(v) FIELD_PREP(DFSDM_AWHTR_BKAWH_MASK, v)
|
||||
#define DFSDM_AWHTR_AWHT_MASK GENMASK(31, 8)
|
||||
#define DFSDM_AWHTR_AWHT(v) FIELD_PREP(DFSDM_AWHTR_AWHT_MASK, v)
|
||||
|
||||
/* AWSR: Filter watchdog status register */
|
||||
#define DFSDM_AWSR_AWLTF_MASK GENMASK(7, 0)
|
||||
#define DFSDM_AWSR_AWLTF(v) FIELD_PREP(DFSDM_AWSR_AWLTF_MASK, v)
|
||||
#define DFSDM_AWSR_AWHTF_MASK GENMASK(15, 8)
|
||||
#define DFSDM_AWSR_AWHTF(v) FIELD_PREP(DFSDM_AWSR_AWHTF_MASK, v)
|
||||
|
||||
/* AWCFR: Filter watchdog status register */
|
||||
#define DFSDM_AWCFR_AWLTF_MASK GENMASK(7, 0)
|
||||
#define DFSDM_AWCFR_AWLTF(v) FIELD_PREP(DFSDM_AWCFR_AWLTF_MASK, v)
|
||||
#define DFSDM_AWCFR_AWHTF_MASK GENMASK(15, 8)
|
||||
#define DFSDM_AWCFR_AWHTF(v) FIELD_PREP(DFSDM_AWCFR_AWHTF_MASK, v)
|
||||
|
||||
/* DFSDM filter order */
|
||||
enum stm32_dfsdm_sinc_order {
|
||||
DFSDM_FASTSINC_ORDER, /* FastSinc filter type */
|
||||
DFSDM_SINC1_ORDER, /* Sinc 1 filter type */
|
||||
DFSDM_SINC2_ORDER, /* Sinc 2 filter type */
|
||||
DFSDM_SINC3_ORDER, /* Sinc 3 filter type */
|
||||
DFSDM_SINC4_ORDER, /* Sinc 4 filter type (N.A. for watchdog) */
|
||||
DFSDM_SINC5_ORDER, /* Sinc 5 filter type (N.A. for watchdog) */
|
||||
DFSDM_NB_SINC_ORDER,
|
||||
};
|
||||
|
||||
/**
|
||||
* struct stm32_dfsdm_filter - structure relative to stm32 FDSDM filter
|
||||
* @iosr: integrator oversampling
|
||||
* @fosr: filter oversampling
|
||||
* @ford: filter order
|
||||
* @res: output sample resolution
|
||||
* @sync_mode: filter synchronized with filter 0
|
||||
* @fast: filter fast mode
|
||||
*/
|
||||
struct stm32_dfsdm_filter {
|
||||
unsigned int iosr;
|
||||
unsigned int fosr;
|
||||
enum stm32_dfsdm_sinc_order ford;
|
||||
u64 res;
|
||||
unsigned int sync_mode;
|
||||
unsigned int fast;
|
||||
};
|
||||
|
||||
/**
|
||||
* struct stm32_dfsdm_channel - structure relative to stm32 FDSDM channel
|
||||
* @id: id of the channel
|
||||
* @type: interface type linked to stm32_dfsdm_chan_type
|
||||
* @src: interface type linked to stm32_dfsdm_chan_src
|
||||
* @alt_si: alternative serial input interface
|
||||
*/
|
||||
struct stm32_dfsdm_channel {
|
||||
unsigned int id;
|
||||
unsigned int type;
|
||||
unsigned int src;
|
||||
unsigned int alt_si;
|
||||
};
|
||||
|
||||
/**
|
||||
* struct stm32_dfsdm - stm32 FDSDM driver common data (for all instances)
|
||||
* @base: control registers base cpu addr
|
||||
* @phys_base: DFSDM IP register physical address
|
||||
* @regmap: regmap for register read/write
|
||||
* @fl_list: filter resources list
|
||||
* @num_fls: number of filter resources available
|
||||
* @ch_list: channel resources list
|
||||
* @num_chs: number of channel resources available
|
||||
* @spi_master_freq: SPI clock out frequency
|
||||
*/
|
||||
struct stm32_dfsdm {
|
||||
void __iomem *base;
|
||||
phys_addr_t phys_base;
|
||||
struct regmap *regmap;
|
||||
struct stm32_dfsdm_filter *fl_list;
|
||||
unsigned int num_fls;
|
||||
struct stm32_dfsdm_channel *ch_list;
|
||||
unsigned int num_chs;
|
||||
unsigned int spi_master_freq;
|
||||
};
|
||||
|
||||
/* DFSDM channel serial spi clock source */
|
||||
enum stm32_dfsdm_spi_clk_src {
|
||||
DFSDM_CHANNEL_SPI_CLOCK_EXTERNAL,
|
||||
DFSDM_CHANNEL_SPI_CLOCK_INTERNAL,
|
||||
DFSDM_CHANNEL_SPI_CLOCK_INTERNAL_DIV2_FALLING,
|
||||
DFSDM_CHANNEL_SPI_CLOCK_INTERNAL_DIV2_RISING
|
||||
};
|
||||
|
||||
int stm32_dfsdm_start_dfsdm(struct stm32_dfsdm *dfsdm);
|
||||
int stm32_dfsdm_stop_dfsdm(struct stm32_dfsdm *dfsdm);
|
||||
|
||||
#endif
|
||||
|
|
@ -29,6 +29,16 @@ config IIO_BUFFER_DMAENGINE
|
|||
|
||||
Should be selected by drivers that want to use this functionality.
|
||||
|
||||
config IIO_BUFFER_HW_CONSUMER
|
||||
tristate "Industrial I/O HW buffering"
|
||||
help
|
||||
Provides a way to bonding when an IIO device has a direct connection
|
||||
to another device in hardware. In this case buffers for data transfers
|
||||
are handled by hardware.
|
||||
|
||||
Should be selected by drivers that want to use the generic Hw consumer
|
||||
interface.
|
||||
|
||||
config IIO_KFIFO_BUF
|
||||
tristate "Industrial I/O buffering based on kfifo"
|
||||
help
|
||||
|
|
|
|||
|
|
@ -7,5 +7,6 @@
|
|||
obj-$(CONFIG_IIO_BUFFER_CB) += industrialio-buffer-cb.o
|
||||
obj-$(CONFIG_IIO_BUFFER_DMA) += industrialio-buffer-dma.o
|
||||
obj-$(CONFIG_IIO_BUFFER_DMAENGINE) += industrialio-buffer-dmaengine.o
|
||||
obj-$(CONFIG_IIO_BUFFER_HW_CONSUMER) += industrialio-hw-consumer.o
|
||||
obj-$(CONFIG_IIO_TRIGGERED_BUFFER) += industrialio-triggered-buffer.o
|
||||
obj-$(CONFIG_IIO_KFIFO_BUF) += kfifo_buf.o
|
||||
|
|
|
|||
|
|
@ -104,6 +104,17 @@ error_free_cb_buff:
|
|||
}
|
||||
EXPORT_SYMBOL_GPL(iio_channel_get_all_cb);
|
||||
|
||||
int iio_channel_cb_set_buffer_watermark(struct iio_cb_buffer *cb_buff,
|
||||
size_t watermark)
|
||||
{
|
||||
if (!watermark)
|
||||
return -EINVAL;
|
||||
cb_buff->buffer.watermark = watermark;
|
||||
|
||||
return 0;
|
||||
}
|
||||
EXPORT_SYMBOL_GPL(iio_channel_cb_set_buffer_watermark);
|
||||
|
||||
int iio_channel_start_all_cb(struct iio_cb_buffer *cb_buff)
|
||||
{
|
||||
return iio_update_buffers(cb_buff->indio_dev, &cb_buff->buffer,
|
||||
|
|
|
|||
|
|
@ -0,0 +1,247 @@
|
|||
// SPDX-License-Identifier: GPL-2.0
|
||||
/*
|
||||
* Copyright 2017 Analog Devices Inc.
|
||||
* Author: Lars-Peter Clausen <lars@metafoo.de>
|
||||
*/
|
||||
|
||||
#include <linux/err.h>
|
||||
#include <linux/export.h>
|
||||
#include <linux/slab.h>
|
||||
#include <linux/module.h>
|
||||
|
||||
#include <linux/iio/iio.h>
|
||||
#include <linux/iio/consumer.h>
|
||||
#include <linux/iio/hw-consumer.h>
|
||||
#include <linux/iio/buffer_impl.h>
|
||||
|
||||
/**
|
||||
* struct iio_hw_consumer - IIO hw consumer block
|
||||
* @buffers: hardware buffers list head.
|
||||
* @channels: IIO provider channels.
|
||||
*/
|
||||
struct iio_hw_consumer {
|
||||
struct list_head buffers;
|
||||
struct iio_channel *channels;
|
||||
};
|
||||
|
||||
struct hw_consumer_buffer {
|
||||
struct list_head head;
|
||||
struct iio_dev *indio_dev;
|
||||
struct iio_buffer buffer;
|
||||
long scan_mask[];
|
||||
};
|
||||
|
||||
static struct hw_consumer_buffer *iio_buffer_to_hw_consumer_buffer(
|
||||
struct iio_buffer *buffer)
|
||||
{
|
||||
return container_of(buffer, struct hw_consumer_buffer, buffer);
|
||||
}
|
||||
|
||||
static void iio_hw_buf_release(struct iio_buffer *buffer)
|
||||
{
|
||||
struct hw_consumer_buffer *hw_buf =
|
||||
iio_buffer_to_hw_consumer_buffer(buffer);
|
||||
kfree(hw_buf);
|
||||
}
|
||||
|
||||
static const struct iio_buffer_access_funcs iio_hw_buf_access = {
|
||||
.release = &iio_hw_buf_release,
|
||||
.modes = INDIO_BUFFER_HARDWARE,
|
||||
};
|
||||
|
||||
static struct hw_consumer_buffer *iio_hw_consumer_get_buffer(
|
||||
struct iio_hw_consumer *hwc, struct iio_dev *indio_dev)
|
||||
{
|
||||
size_t mask_size = BITS_TO_LONGS(indio_dev->masklength) * sizeof(long);
|
||||
struct hw_consumer_buffer *buf;
|
||||
|
||||
list_for_each_entry(buf, &hwc->buffers, head) {
|
||||
if (buf->indio_dev == indio_dev)
|
||||
return buf;
|
||||
}
|
||||
|
||||
buf = kzalloc(sizeof(*buf) + mask_size, GFP_KERNEL);
|
||||
if (!buf)
|
||||
return NULL;
|
||||
|
||||
buf->buffer.access = &iio_hw_buf_access;
|
||||
buf->indio_dev = indio_dev;
|
||||
buf->buffer.scan_mask = buf->scan_mask;
|
||||
|
||||
iio_buffer_init(&buf->buffer);
|
||||
list_add_tail(&buf->head, &hwc->buffers);
|
||||
|
||||
return buf;
|
||||
}
|
||||
|
||||
/**
|
||||
* iio_hw_consumer_alloc() - Allocate IIO hardware consumer
|
||||
* @dev: Pointer to consumer device.
|
||||
*
|
||||
* Returns a valid iio_hw_consumer on success or a ERR_PTR() on failure.
|
||||
*/
|
||||
struct iio_hw_consumer *iio_hw_consumer_alloc(struct device *dev)
|
||||
{
|
||||
struct hw_consumer_buffer *buf;
|
||||
struct iio_hw_consumer *hwc;
|
||||
struct iio_channel *chan;
|
||||
int ret;
|
||||
|
||||
hwc = kzalloc(sizeof(*hwc), GFP_KERNEL);
|
||||
if (!hwc)
|
||||
return ERR_PTR(-ENOMEM);
|
||||
|
||||
INIT_LIST_HEAD(&hwc->buffers);
|
||||
|
||||
hwc->channels = iio_channel_get_all(dev);
|
||||
if (IS_ERR(hwc->channels)) {
|
||||
ret = PTR_ERR(hwc->channels);
|
||||
goto err_free_hwc;
|
||||
}
|
||||
|
||||
chan = &hwc->channels[0];
|
||||
while (chan->indio_dev) {
|
||||
buf = iio_hw_consumer_get_buffer(hwc, chan->indio_dev);
|
||||
if (!buf) {
|
||||
ret = -ENOMEM;
|
||||
goto err_put_buffers;
|
||||
}
|
||||
set_bit(chan->channel->scan_index, buf->buffer.scan_mask);
|
||||
chan++;
|
||||
}
|
||||
|
||||
return hwc;
|
||||
|
||||
err_put_buffers:
|
||||
list_for_each_entry(buf, &hwc->buffers, head)
|
||||
iio_buffer_put(&buf->buffer);
|
||||
iio_channel_release_all(hwc->channels);
|
||||
err_free_hwc:
|
||||
kfree(hwc);
|
||||
return ERR_PTR(ret);
|
||||
}
|
||||
EXPORT_SYMBOL_GPL(iio_hw_consumer_alloc);
|
||||
|
||||
/**
|
||||
* iio_hw_consumer_free() - Free IIO hardware consumer
|
||||
* @hwc: hw consumer to free.
|
||||
*/
|
||||
void iio_hw_consumer_free(struct iio_hw_consumer *hwc)
|
||||
{
|
||||
struct hw_consumer_buffer *buf, *n;
|
||||
|
||||
iio_channel_release_all(hwc->channels);
|
||||
list_for_each_entry_safe(buf, n, &hwc->buffers, head)
|
||||
iio_buffer_put(&buf->buffer);
|
||||
kfree(hwc);
|
||||
}
|
||||
EXPORT_SYMBOL_GPL(iio_hw_consumer_free);
|
||||
|
||||
static void devm_iio_hw_consumer_release(struct device *dev, void *res)
|
||||
{
|
||||
iio_hw_consumer_free(*(struct iio_hw_consumer **)res);
|
||||
}
|
||||
|
||||
static int devm_iio_hw_consumer_match(struct device *dev, void *res, void *data)
|
||||
{
|
||||
struct iio_hw_consumer **r = res;
|
||||
|
||||
if (!r || !*r) {
|
||||
WARN_ON(!r || !*r);
|
||||
return 0;
|
||||
}
|
||||
return *r == data;
|
||||
}
|
||||
|
||||
/**
|
||||
* devm_iio_hw_consumer_alloc - Resource-managed iio_hw_consumer_alloc()
|
||||
* @dev: Pointer to consumer device.
|
||||
*
|
||||
* Managed iio_hw_consumer_alloc. iio_hw_consumer allocated with this function
|
||||
* is automatically freed on driver detach.
|
||||
*
|
||||
* If an iio_hw_consumer allocated with this function needs to be freed
|
||||
* separately, devm_iio_hw_consumer_free() must be used.
|
||||
*
|
||||
* returns pointer to allocated iio_hw_consumer on success, NULL on failure.
|
||||
*/
|
||||
struct iio_hw_consumer *devm_iio_hw_consumer_alloc(struct device *dev)
|
||||
{
|
||||
struct iio_hw_consumer **ptr, *iio_hwc;
|
||||
|
||||
ptr = devres_alloc(devm_iio_hw_consumer_release, sizeof(*ptr),
|
||||
GFP_KERNEL);
|
||||
if (!ptr)
|
||||
return NULL;
|
||||
|
||||
iio_hwc = iio_hw_consumer_alloc(dev);
|
||||
if (IS_ERR(iio_hwc)) {
|
||||
devres_free(ptr);
|
||||
} else {
|
||||
*ptr = iio_hwc;
|
||||
devres_add(dev, ptr);
|
||||
}
|
||||
|
||||
return iio_hwc;
|
||||
}
|
||||
EXPORT_SYMBOL_GPL(devm_iio_hw_consumer_alloc);
|
||||
|
||||
/**
|
||||
* devm_iio_hw_consumer_free - Resource-managed iio_hw_consumer_free()
|
||||
* @dev: Pointer to consumer device.
|
||||
* @hwc: iio_hw_consumer to free.
|
||||
*
|
||||
* Free iio_hw_consumer allocated with devm_iio_hw_consumer_alloc().
|
||||
*/
|
||||
void devm_iio_hw_consumer_free(struct device *dev, struct iio_hw_consumer *hwc)
|
||||
{
|
||||
int rc;
|
||||
|
||||
rc = devres_release(dev, devm_iio_hw_consumer_release,
|
||||
devm_iio_hw_consumer_match, hwc);
|
||||
WARN_ON(rc);
|
||||
}
|
||||
EXPORT_SYMBOL_GPL(devm_iio_hw_consumer_free);
|
||||
|
||||
/**
|
||||
* iio_hw_consumer_enable() - Enable IIO hardware consumer
|
||||
* @hwc: iio_hw_consumer to enable.
|
||||
*
|
||||
* Returns 0 on success.
|
||||
*/
|
||||
int iio_hw_consumer_enable(struct iio_hw_consumer *hwc)
|
||||
{
|
||||
struct hw_consumer_buffer *buf;
|
||||
int ret;
|
||||
|
||||
list_for_each_entry(buf, &hwc->buffers, head) {
|
||||
ret = iio_update_buffers(buf->indio_dev, &buf->buffer, NULL);
|
||||
if (ret)
|
||||
goto err_disable_buffers;
|
||||
}
|
||||
|
||||
return 0;
|
||||
|
||||
err_disable_buffers:
|
||||
list_for_each_entry_continue_reverse(buf, &hwc->buffers, head)
|
||||
iio_update_buffers(buf->indio_dev, NULL, &buf->buffer);
|
||||
return ret;
|
||||
}
|
||||
EXPORT_SYMBOL_GPL(iio_hw_consumer_enable);
|
||||
|
||||
/**
|
||||
* iio_hw_consumer_disable() - Disable IIO hardware consumer
|
||||
* @hwc: iio_hw_consumer to disable.
|
||||
*/
|
||||
void iio_hw_consumer_disable(struct iio_hw_consumer *hwc)
|
||||
{
|
||||
struct hw_consumer_buffer *buf;
|
||||
|
||||
list_for_each_entry(buf, &hwc->buffers, head)
|
||||
iio_update_buffers(buf->indio_dev, NULL, &buf->buffer);
|
||||
}
|
||||
EXPORT_SYMBOL_GPL(iio_hw_consumer_disable);
|
||||
|
||||
MODULE_AUTHOR("Lars-Peter Clausen <lars@metafoo.de>");
|
||||
MODULE_DESCRIPTION("Hardware consumer buffer the IIO framework");
|
||||
MODULE_LICENSE("GPL v2");
|
||||
|
|
@ -664,9 +664,8 @@ err_unlock:
|
|||
}
|
||||
EXPORT_SYMBOL_GPL(iio_convert_raw_to_processed);
|
||||
|
||||
static int iio_read_channel_attribute(struct iio_channel *chan,
|
||||
int *val, int *val2,
|
||||
enum iio_chan_info_enum attribute)
|
||||
int iio_read_channel_attribute(struct iio_channel *chan, int *val, int *val2,
|
||||
enum iio_chan_info_enum attribute)
|
||||
{
|
||||
int ret;
|
||||
|
||||
|
|
@ -682,6 +681,7 @@ err_unlock:
|
|||
|
||||
return ret;
|
||||
}
|
||||
EXPORT_SYMBOL_GPL(iio_read_channel_attribute);
|
||||
|
||||
int iio_read_channel_offset(struct iio_channel *chan, int *val, int *val2)
|
||||
{
|
||||
|
|
@ -850,7 +850,8 @@ static int iio_channel_write(struct iio_channel *chan, int val, int val2,
|
|||
chan->channel, val, val2, info);
|
||||
}
|
||||
|
||||
int iio_write_channel_raw(struct iio_channel *chan, int val)
|
||||
int iio_write_channel_attribute(struct iio_channel *chan, int val, int val2,
|
||||
enum iio_chan_info_enum attribute)
|
||||
{
|
||||
int ret;
|
||||
|
||||
|
|
@ -860,12 +861,18 @@ int iio_write_channel_raw(struct iio_channel *chan, int val)
|
|||
goto err_unlock;
|
||||
}
|
||||
|
||||
ret = iio_channel_write(chan, val, 0, IIO_CHAN_INFO_RAW);
|
||||
ret = iio_channel_write(chan, val, val2, attribute);
|
||||
err_unlock:
|
||||
mutex_unlock(&chan->indio_dev->info_exist_lock);
|
||||
|
||||
return ret;
|
||||
}
|
||||
EXPORT_SYMBOL_GPL(iio_write_channel_attribute);
|
||||
|
||||
int iio_write_channel_raw(struct iio_channel *chan, int val)
|
||||
{
|
||||
return iio_write_channel_attribute(chan, val, 0, IIO_CHAN_INFO_RAW);
|
||||
}
|
||||
EXPORT_SYMBOL_GPL(iio_write_channel_raw);
|
||||
|
||||
unsigned int iio_get_channel_ext_info_count(struct iio_channel *chan)
|
||||
|
|
|
|||
|
|
@ -0,0 +1,18 @@
|
|||
/* SPDX-License-Identifier: GPL-2.0 */
|
||||
/*
|
||||
* This file discribe the STM32 DFSDM IIO driver API for audio part
|
||||
*
|
||||
* Copyright (C) 2017, STMicroelectronics - All Rights Reserved
|
||||
* Author(s): Arnaud Pouliquen <arnaud.pouliquen@st.com>.
|
||||
*/
|
||||
|
||||
#ifndef STM32_DFSDM_ADC_H
|
||||
#define STM32_DFSDM_ADC_H
|
||||
|
||||
int stm32_dfsdm_get_buff_cb(struct iio_dev *iio_dev,
|
||||
int (*cb)(const void *data, size_t size,
|
||||
void *private),
|
||||
void *private);
|
||||
int stm32_dfsdm_release_buff_cb(struct iio_dev *iio_dev);
|
||||
|
||||
#endif
|
||||
|
|
@ -133,6 +133,17 @@ struct iio_cb_buffer *iio_channel_get_all_cb(struct device *dev,
|
|||
int (*cb)(const void *data,
|
||||
void *private),
|
||||
void *private);
|
||||
/**
|
||||
* iio_channel_cb_set_buffer_watermark() - set the buffer watermark.
|
||||
* @cb_buffer: The callback buffer from whom we want the channel
|
||||
* information.
|
||||
* @watermark: buffer watermark in bytes.
|
||||
*
|
||||
* This function allows to configure the buffer watermark.
|
||||
*/
|
||||
int iio_channel_cb_set_buffer_watermark(struct iio_cb_buffer *cb_buffer,
|
||||
size_t watermark);
|
||||
|
||||
/**
|
||||
* iio_channel_release_all_cb() - release and unregister the callback.
|
||||
* @cb_buffer: The callback buffer that was allocated.
|
||||
|
|
@ -215,6 +226,32 @@ int iio_read_channel_average_raw(struct iio_channel *chan, int *val);
|
|||
*/
|
||||
int iio_read_channel_processed(struct iio_channel *chan, int *val);
|
||||
|
||||
/**
|
||||
* iio_write_channel_attribute() - Write values to the device attribute.
|
||||
* @chan: The channel being queried.
|
||||
* @val: Value being written.
|
||||
* @val2: Value being written.val2 use depends on attribute type.
|
||||
* @attribute: info attribute to be read.
|
||||
*
|
||||
* Returns an error code or 0.
|
||||
*/
|
||||
int iio_write_channel_attribute(struct iio_channel *chan, int val,
|
||||
int val2, enum iio_chan_info_enum attribute);
|
||||
|
||||
/**
|
||||
* iio_read_channel_attribute() - Read values from the device attribute.
|
||||
* @chan: The channel being queried.
|
||||
* @val: Value being written.
|
||||
* @val2: Value being written.Val2 use depends on attribute type.
|
||||
* @attribute: info attribute to be written.
|
||||
*
|
||||
* Returns an error code if failed. Else returns a description of what is in val
|
||||
* and val2, such as IIO_VAL_INT_PLUS_MICRO telling us we have a value of val
|
||||
* + val2/1e6
|
||||
*/
|
||||
int iio_read_channel_attribute(struct iio_channel *chan, int *val,
|
||||
int *val2, enum iio_chan_info_enum attribute);
|
||||
|
||||
/**
|
||||
* iio_write_channel_raw() - write to a given channel
|
||||
* @chan: The channel being queried.
|
||||
|
|
|
|||
|
|
@ -0,0 +1,21 @@
|
|||
/* SPDX-License-Identifier: GPL-2.0 */
|
||||
/*
|
||||
* Industrial I/O in kernel hardware consumer interface
|
||||
*
|
||||
* Copyright 2017 Analog Devices Inc.
|
||||
* Author: Lars-Peter Clausen <lars@metafoo.de>
|
||||
*/
|
||||
|
||||
#ifndef LINUX_IIO_HW_CONSUMER_H
|
||||
#define LINUX_IIO_HW_CONSUMER_H
|
||||
|
||||
struct iio_hw_consumer;
|
||||
|
||||
struct iio_hw_consumer *iio_hw_consumer_alloc(struct device *dev);
|
||||
void iio_hw_consumer_free(struct iio_hw_consumer *hwc);
|
||||
struct iio_hw_consumer *devm_iio_hw_consumer_alloc(struct device *dev);
|
||||
void devm_iio_hw_consumer_free(struct device *dev, struct iio_hw_consumer *hwc);
|
||||
int iio_hw_consumer_enable(struct iio_hw_consumer *hwc);
|
||||
void iio_hw_consumer_disable(struct iio_hw_consumer *hwc);
|
||||
|
||||
#endif
|
||||
|
|
@ -20,34 +20,6 @@
|
|||
* Currently assumes nano seconds.
|
||||
*/
|
||||
|
||||
enum iio_chan_info_enum {
|
||||
IIO_CHAN_INFO_RAW = 0,
|
||||
IIO_CHAN_INFO_PROCESSED,
|
||||
IIO_CHAN_INFO_SCALE,
|
||||
IIO_CHAN_INFO_OFFSET,
|
||||
IIO_CHAN_INFO_CALIBSCALE,
|
||||
IIO_CHAN_INFO_CALIBBIAS,
|
||||
IIO_CHAN_INFO_PEAK,
|
||||
IIO_CHAN_INFO_PEAK_SCALE,
|
||||
IIO_CHAN_INFO_QUADRATURE_CORRECTION_RAW,
|
||||
IIO_CHAN_INFO_AVERAGE_RAW,
|
||||
IIO_CHAN_INFO_LOW_PASS_FILTER_3DB_FREQUENCY,
|
||||
IIO_CHAN_INFO_HIGH_PASS_FILTER_3DB_FREQUENCY,
|
||||
IIO_CHAN_INFO_SAMP_FREQ,
|
||||
IIO_CHAN_INFO_FREQUENCY,
|
||||
IIO_CHAN_INFO_PHASE,
|
||||
IIO_CHAN_INFO_HARDWAREGAIN,
|
||||
IIO_CHAN_INFO_HYSTERESIS,
|
||||
IIO_CHAN_INFO_INT_TIME,
|
||||
IIO_CHAN_INFO_ENABLE,
|
||||
IIO_CHAN_INFO_CALIBHEIGHT,
|
||||
IIO_CHAN_INFO_CALIBWEIGHT,
|
||||
IIO_CHAN_INFO_DEBOUNCE_COUNT,
|
||||
IIO_CHAN_INFO_DEBOUNCE_TIME,
|
||||
IIO_CHAN_INFO_CALIBEMISSIVITY,
|
||||
IIO_CHAN_INFO_OVERSAMPLING_RATIO,
|
||||
};
|
||||
|
||||
enum iio_shared_by {
|
||||
IIO_SEPARATE,
|
||||
IIO_SHARED_BY_TYPE,
|
||||
|
|
|
|||
|
|
@ -34,4 +34,32 @@ enum iio_available_type {
|
|||
IIO_AVAIL_RANGE,
|
||||
};
|
||||
|
||||
enum iio_chan_info_enum {
|
||||
IIO_CHAN_INFO_RAW = 0,
|
||||
IIO_CHAN_INFO_PROCESSED,
|
||||
IIO_CHAN_INFO_SCALE,
|
||||
IIO_CHAN_INFO_OFFSET,
|
||||
IIO_CHAN_INFO_CALIBSCALE,
|
||||
IIO_CHAN_INFO_CALIBBIAS,
|
||||
IIO_CHAN_INFO_PEAK,
|
||||
IIO_CHAN_INFO_PEAK_SCALE,
|
||||
IIO_CHAN_INFO_QUADRATURE_CORRECTION_RAW,
|
||||
IIO_CHAN_INFO_AVERAGE_RAW,
|
||||
IIO_CHAN_INFO_LOW_PASS_FILTER_3DB_FREQUENCY,
|
||||
IIO_CHAN_INFO_HIGH_PASS_FILTER_3DB_FREQUENCY,
|
||||
IIO_CHAN_INFO_SAMP_FREQ,
|
||||
IIO_CHAN_INFO_FREQUENCY,
|
||||
IIO_CHAN_INFO_PHASE,
|
||||
IIO_CHAN_INFO_HARDWAREGAIN,
|
||||
IIO_CHAN_INFO_HYSTERESIS,
|
||||
IIO_CHAN_INFO_INT_TIME,
|
||||
IIO_CHAN_INFO_ENABLE,
|
||||
IIO_CHAN_INFO_CALIBHEIGHT,
|
||||
IIO_CHAN_INFO_CALIBWEIGHT,
|
||||
IIO_CHAN_INFO_DEBOUNCE_COUNT,
|
||||
IIO_CHAN_INFO_DEBOUNCE_TIME,
|
||||
IIO_CHAN_INFO_CALIBEMISSIVITY,
|
||||
IIO_CHAN_INFO_OVERSAMPLING_RATIO,
|
||||
};
|
||||
|
||||
#endif /* _IIO_TYPES_H_ */
|
||||
|
|
|
|||
|
|
@ -95,6 +95,7 @@ config SND_SOC_ALL_CODECS
|
|||
select SND_SOC_MAX98925 if I2C
|
||||
select SND_SOC_MAX98926 if I2C
|
||||
select SND_SOC_MAX98927 if I2C
|
||||
select SND_SOC_MAX98373 if I2C
|
||||
select SND_SOC_MAX9850 if I2C
|
||||
select SND_SOC_MAX9860 if I2C
|
||||
select SND_SOC_MAX9768 if I2C
|
||||
|
|
@ -624,6 +625,10 @@ config SND_SOC_MAX98927
|
|||
tristate "Maxim Integrated MAX98927 Speaker Amplifier"
|
||||
depends on I2C
|
||||
|
||||
config SND_SOC_MAX98373
|
||||
tristate "Maxim Integrated MAX98373 Speaker Amplifier"
|
||||
depends on I2C
|
||||
|
||||
config SND_SOC_MAX9850
|
||||
tristate
|
||||
|
||||
|
|
|
|||
|
|
@ -90,6 +90,7 @@ snd-soc-max9867-objs := max9867.o
|
|||
snd-soc-max98925-objs := max98925.o
|
||||
snd-soc-max98926-objs := max98926.o
|
||||
snd-soc-max98927-objs := max98927.o
|
||||
snd-soc-max98373-objs := max98373.o
|
||||
snd-soc-max9850-objs := max9850.o
|
||||
snd-soc-max9860-objs := max9860.o
|
||||
snd-soc-mc13783-objs := mc13783.o
|
||||
|
|
@ -332,6 +333,7 @@ obj-$(CONFIG_SND_SOC_MAX9867) += snd-soc-max9867.o
|
|||
obj-$(CONFIG_SND_SOC_MAX98925) += snd-soc-max98925.o
|
||||
obj-$(CONFIG_SND_SOC_MAX98926) += snd-soc-max98926.o
|
||||
obj-$(CONFIG_SND_SOC_MAX98927) += snd-soc-max98927.o
|
||||
obj-$(CONFIG_SND_SOC_MAX98373) += snd-soc-max98373.o
|
||||
obj-$(CONFIG_SND_SOC_MAX9850) += snd-soc-max9850.o
|
||||
obj-$(CONFIG_SND_SOC_MAX9860) += snd-soc-max9860.o
|
||||
obj-$(CONFIG_SND_SOC_MC13783) += snd-soc-mc13783.o
|
||||
|
|
|
|||
|
|
@ -0,0 +1,976 @@
|
|||
/* SPDX-License-Identifier: GPL-2.0 */
|
||||
/* Copyright (c) 2017, Maxim Integrated */
|
||||
|
||||
#include <linux/acpi.h>
|
||||
#include <linux/i2c.h>
|
||||
#include <linux/module.h>
|
||||
#include <linux/regmap.h>
|
||||
#include <linux/slab.h>
|
||||
#include <linux/cdev.h>
|
||||
#include <sound/pcm.h>
|
||||
#include <sound/pcm_params.h>
|
||||
#include <sound/soc.h>
|
||||
#include <linux/gpio.h>
|
||||
#include <linux/of_gpio.h>
|
||||
#include <sound/tlv.h>
|
||||
#include "max98373.h"
|
||||
|
||||
static struct reg_default max98373_reg[] = {
|
||||
{MAX98373_R2000_SW_RESET, 0x00},
|
||||
{MAX98373_R2001_INT_RAW1, 0x00},
|
||||
{MAX98373_R2002_INT_RAW2, 0x00},
|
||||
{MAX98373_R2003_INT_RAW3, 0x00},
|
||||
{MAX98373_R2004_INT_STATE1, 0x00},
|
||||
{MAX98373_R2005_INT_STATE2, 0x00},
|
||||
{MAX98373_R2006_INT_STATE3, 0x00},
|
||||
{MAX98373_R2007_INT_FLAG1, 0x00},
|
||||
{MAX98373_R2008_INT_FLAG2, 0x00},
|
||||
{MAX98373_R2009_INT_FLAG3, 0x00},
|
||||
{MAX98373_R200A_INT_EN1, 0x00},
|
||||
{MAX98373_R200B_INT_EN2, 0x00},
|
||||
{MAX98373_R200C_INT_EN3, 0x00},
|
||||
{MAX98373_R200D_INT_FLAG_CLR1, 0x00},
|
||||
{MAX98373_R200E_INT_FLAG_CLR2, 0x00},
|
||||
{MAX98373_R200F_INT_FLAG_CLR3, 0x00},
|
||||
{MAX98373_R2010_IRQ_CTRL, 0x00},
|
||||
{MAX98373_R2014_THERM_WARN_THRESH, 0x10},
|
||||
{MAX98373_R2015_THERM_SHDN_THRESH, 0x27},
|
||||
{MAX98373_R2016_THERM_HYSTERESIS, 0x01},
|
||||
{MAX98373_R2017_THERM_FOLDBACK_SET, 0xC0},
|
||||
{MAX98373_R2018_THERM_FOLDBACK_EN, 0x00},
|
||||
{MAX98373_R201E_PIN_DRIVE_STRENGTH, 0x55},
|
||||
{MAX98373_R2020_PCM_TX_HIZ_EN_1, 0xFE},
|
||||
{MAX98373_R2021_PCM_TX_HIZ_EN_2, 0xFF},
|
||||
{MAX98373_R2022_PCM_TX_SRC_1, 0x00},
|
||||
{MAX98373_R2023_PCM_TX_SRC_2, 0x00},
|
||||
{MAX98373_R2024_PCM_DATA_FMT_CFG, 0xC0},
|
||||
{MAX98373_R2025_AUDIO_IF_MODE, 0x00},
|
||||
{MAX98373_R2026_PCM_CLOCK_RATIO, 0x04},
|
||||
{MAX98373_R2027_PCM_SR_SETUP_1, 0x08},
|
||||
{MAX98373_R2028_PCM_SR_SETUP_2, 0x88},
|
||||
{MAX98373_R2029_PCM_TO_SPK_MONO_MIX_1, 0x00},
|
||||
{MAX98373_R202A_PCM_TO_SPK_MONO_MIX_2, 0x00},
|
||||
{MAX98373_R202B_PCM_RX_EN, 0x00},
|
||||
{MAX98373_R202C_PCM_TX_EN, 0x00},
|
||||
{MAX98373_R202E_ICC_RX_CH_EN_1, 0x00},
|
||||
{MAX98373_R202F_ICC_RX_CH_EN_2, 0x00},
|
||||
{MAX98373_R2030_ICC_TX_HIZ_EN_1, 0xFF},
|
||||
{MAX98373_R2031_ICC_TX_HIZ_EN_2, 0xFF},
|
||||
{MAX98373_R2032_ICC_LINK_EN_CFG, 0x30},
|
||||
{MAX98373_R2034_ICC_TX_CNTL, 0x00},
|
||||
{MAX98373_R2035_ICC_TX_EN, 0x00},
|
||||
{MAX98373_R2036_SOUNDWIRE_CTRL, 0x05},
|
||||
{MAX98373_R203D_AMP_DIG_VOL_CTRL, 0x00},
|
||||
{MAX98373_R203E_AMP_PATH_GAIN, 0x08},
|
||||
{MAX98373_R203F_AMP_DSP_CFG, 0x02},
|
||||
{MAX98373_R2040_TONE_GEN_CFG, 0x00},
|
||||
{MAX98373_R2041_AMP_CFG, 0x03},
|
||||
{MAX98373_R2042_AMP_EDGE_RATE_CFG, 0x00},
|
||||
{MAX98373_R2043_AMP_EN, 0x00},
|
||||
{MAX98373_R2046_IV_SENSE_ADC_DSP_CFG, 0x04},
|
||||
{MAX98373_R2047_IV_SENSE_ADC_EN, 0x00},
|
||||
{MAX98373_R2051_MEAS_ADC_SAMPLING_RATE, 0x00},
|
||||
{MAX98373_R2052_MEAS_ADC_PVDD_FLT_CFG, 0x00},
|
||||
{MAX98373_R2053_MEAS_ADC_THERM_FLT_CFG, 0x00},
|
||||
{MAX98373_R2054_MEAS_ADC_PVDD_CH_READBACK, 0x00},
|
||||
{MAX98373_R2055_MEAS_ADC_THERM_CH_READBACK, 0x00},
|
||||
{MAX98373_R2056_MEAS_ADC_PVDD_CH_EN, 0x00},
|
||||
{MAX98373_R2090_BDE_LVL_HOLD, 0x00},
|
||||
{MAX98373_R2091_BDE_GAIN_ATK_REL_RATE, 0x00},
|
||||
{MAX98373_R2092_BDE_CLIPPER_MODE, 0x00},
|
||||
{MAX98373_R2097_BDE_L1_THRESH, 0x00},
|
||||
{MAX98373_R2098_BDE_L2_THRESH, 0x00},
|
||||
{MAX98373_R2099_BDE_L3_THRESH, 0x00},
|
||||
{MAX98373_R209A_BDE_L4_THRESH, 0x00},
|
||||
{MAX98373_R209B_BDE_THRESH_HYST, 0x00},
|
||||
{MAX98373_R20A8_BDE_L1_CFG_1, 0x00},
|
||||
{MAX98373_R20A9_BDE_L1_CFG_2, 0x00},
|
||||
{MAX98373_R20AA_BDE_L1_CFG_3, 0x00},
|
||||
{MAX98373_R20AB_BDE_L2_CFG_1, 0x00},
|
||||
{MAX98373_R20AC_BDE_L2_CFG_2, 0x00},
|
||||
{MAX98373_R20AD_BDE_L2_CFG_3, 0x00},
|
||||
{MAX98373_R20AE_BDE_L3_CFG_1, 0x00},
|
||||
{MAX98373_R20AF_BDE_L3_CFG_2, 0x00},
|
||||
{MAX98373_R20B0_BDE_L3_CFG_3, 0x00},
|
||||
{MAX98373_R20B1_BDE_L4_CFG_1, 0x00},
|
||||
{MAX98373_R20B2_BDE_L4_CFG_2, 0x00},
|
||||
{MAX98373_R20B3_BDE_L4_CFG_3, 0x00},
|
||||
{MAX98373_R20B4_BDE_INFINITE_HOLD_RELEASE, 0x00},
|
||||
{MAX98373_R20B5_BDE_EN, 0x00},
|
||||
{MAX98373_R20B6_BDE_CUR_STATE_READBACK, 0x00},
|
||||
{MAX98373_R20D1_DHT_CFG, 0x01},
|
||||
{MAX98373_R20D2_DHT_ATTACK_CFG, 0x02},
|
||||
{MAX98373_R20D3_DHT_RELEASE_CFG, 0x03},
|
||||
{MAX98373_R20D4_DHT_EN, 0x00},
|
||||
{MAX98373_R20E0_LIMITER_THRESH_CFG, 0x00},
|
||||
{MAX98373_R20E1_LIMITER_ATK_REL_RATES, 0x00},
|
||||
{MAX98373_R20E2_LIMITER_EN, 0x00},
|
||||
{MAX98373_R20FE_DEVICE_AUTO_RESTART_CFG, 0x00},
|
||||
{MAX98373_R20FF_GLOBAL_SHDN, 0x00},
|
||||
{MAX98373_R21FF_REV_ID, 0x42},
|
||||
};
|
||||
|
||||
static int max98373_dai_set_fmt(struct snd_soc_dai *codec_dai, unsigned int fmt)
|
||||
{
|
||||
struct snd_soc_codec *codec = codec_dai->codec;
|
||||
struct max98373_priv *max98373 = snd_soc_codec_get_drvdata(codec);
|
||||
unsigned int format = 0;
|
||||
unsigned int invert = 0;
|
||||
|
||||
dev_dbg(codec->dev, "%s: fmt 0x%08X\n", __func__, fmt);
|
||||
|
||||
switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
|
||||
case SND_SOC_DAIFMT_NB_NF:
|
||||
break;
|
||||
case SND_SOC_DAIFMT_IB_NF:
|
||||
invert = MAX98373_PCM_MODE_CFG_PCM_BCLKEDGE;
|
||||
break;
|
||||
default:
|
||||
dev_err(codec->dev, "DAI invert mode unsupported\n");
|
||||
return -EINVAL;
|
||||
}
|
||||
|
||||
regmap_update_bits(max98373->regmap,
|
||||
MAX98373_R2026_PCM_CLOCK_RATIO,
|
||||
MAX98373_PCM_MODE_CFG_PCM_BCLKEDGE,
|
||||
invert);
|
||||
|
||||
/* interface format */
|
||||
switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
|
||||
case SND_SOC_DAIFMT_I2S:
|
||||
format = MAX98373_PCM_FORMAT_I2S;
|
||||
break;
|
||||
case SND_SOC_DAIFMT_LEFT_J:
|
||||
format = MAX98373_PCM_FORMAT_LJ;
|
||||
break;
|
||||
case SND_SOC_DAIFMT_DSP_A:
|
||||
format = MAX98373_PCM_FORMAT_TDM_MODE1;
|
||||
break;
|
||||
case SND_SOC_DAIFMT_DSP_B:
|
||||
format = MAX98373_PCM_FORMAT_TDM_MODE0;
|
||||
break;
|
||||
default:
|
||||
return -EINVAL;
|
||||
}
|
||||
|
||||
regmap_update_bits(max98373->regmap,
|
||||
MAX98373_R2024_PCM_DATA_FMT_CFG,
|
||||
MAX98373_PCM_MODE_CFG_FORMAT_MASK,
|
||||
format << MAX98373_PCM_MODE_CFG_FORMAT_SHIFT);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
/* BCLKs per LRCLK */
|
||||
static const int bclk_sel_table[] = {
|
||||
32, 48, 64, 96, 128, 192, 256, 384, 512, 320,
|
||||
};
|
||||
|
||||
static int max98373_get_bclk_sel(int bclk)
|
||||
{
|
||||
int i;
|
||||
/* match BCLKs per LRCLK */
|
||||
for (i = 0; i < ARRAY_SIZE(bclk_sel_table); i++) {
|
||||
if (bclk_sel_table[i] == bclk)
|
||||
return i + 2;
|
||||
}
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int max98373_set_clock(struct snd_soc_codec *codec,
|
||||
struct snd_pcm_hw_params *params)
|
||||
{
|
||||
struct max98373_priv *max98373 = snd_soc_codec_get_drvdata(codec);
|
||||
/* BCLK/LRCLK ratio calculation */
|
||||
int blr_clk_ratio = params_channels(params) * max98373->ch_size;
|
||||
int value;
|
||||
|
||||
if (!max98373->tdm_mode) {
|
||||
/* BCLK configuration */
|
||||
value = max98373_get_bclk_sel(blr_clk_ratio);
|
||||
if (!value) {
|
||||
dev_err(codec->dev, "format unsupported %d\n",
|
||||
params_format(params));
|
||||
return -EINVAL;
|
||||
}
|
||||
|
||||
regmap_update_bits(max98373->regmap,
|
||||
MAX98373_R2026_PCM_CLOCK_RATIO,
|
||||
MAX98373_PCM_CLK_SETUP_BSEL_MASK,
|
||||
value);
|
||||
}
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int max98373_dai_hw_params(struct snd_pcm_substream *substream,
|
||||
struct snd_pcm_hw_params *params,
|
||||
struct snd_soc_dai *dai)
|
||||
{
|
||||
struct snd_soc_codec *codec = dai->codec;
|
||||
struct max98373_priv *max98373 = snd_soc_codec_get_drvdata(codec);
|
||||
unsigned int sampling_rate = 0;
|
||||
unsigned int chan_sz = 0;
|
||||
|
||||
/* pcm mode configuration */
|
||||
switch (snd_pcm_format_width(params_format(params))) {
|
||||
case 16:
|
||||
chan_sz = MAX98373_PCM_MODE_CFG_CHANSZ_16;
|
||||
break;
|
||||
case 24:
|
||||
chan_sz = MAX98373_PCM_MODE_CFG_CHANSZ_24;
|
||||
break;
|
||||
case 32:
|
||||
chan_sz = MAX98373_PCM_MODE_CFG_CHANSZ_32;
|
||||
break;
|
||||
default:
|
||||
dev_err(codec->dev, "format unsupported %d\n",
|
||||
params_format(params));
|
||||
goto err;
|
||||
}
|
||||
|
||||
max98373->ch_size = snd_pcm_format_width(params_format(params));
|
||||
|
||||
regmap_update_bits(max98373->regmap,
|
||||
MAX98373_R2024_PCM_DATA_FMT_CFG,
|
||||
MAX98373_PCM_MODE_CFG_CHANSZ_MASK, chan_sz);
|
||||
|
||||
dev_dbg(codec->dev, "format supported %d",
|
||||
params_format(params));
|
||||
|
||||
/* sampling rate configuration */
|
||||
switch (params_rate(params)) {
|
||||
case 8000:
|
||||
sampling_rate = MAX98373_PCM_SR_SET1_SR_8000;
|
||||
break;
|
||||
case 11025:
|
||||
sampling_rate = MAX98373_PCM_SR_SET1_SR_11025;
|
||||
break;
|
||||
case 12000:
|
||||
sampling_rate = MAX98373_PCM_SR_SET1_SR_12000;
|
||||
break;
|
||||
case 16000:
|
||||
sampling_rate = MAX98373_PCM_SR_SET1_SR_16000;
|
||||
break;
|
||||
case 22050:
|
||||
sampling_rate = MAX98373_PCM_SR_SET1_SR_22050;
|
||||
break;
|
||||
case 24000:
|
||||
sampling_rate = MAX98373_PCM_SR_SET1_SR_24000;
|
||||
break;
|
||||
case 32000:
|
||||
sampling_rate = MAX98373_PCM_SR_SET1_SR_32000;
|
||||
break;
|
||||
case 44100:
|
||||
sampling_rate = MAX98373_PCM_SR_SET1_SR_44100;
|
||||
break;
|
||||
case 48000:
|
||||
sampling_rate = MAX98373_PCM_SR_SET1_SR_48000;
|
||||
break;
|
||||
default:
|
||||
dev_err(codec->dev, "rate %d not supported\n",
|
||||
params_rate(params));
|
||||
goto err;
|
||||
}
|
||||
|
||||
/* set DAI_SR to correct LRCLK frequency */
|
||||
regmap_update_bits(max98373->regmap,
|
||||
MAX98373_R2027_PCM_SR_SETUP_1,
|
||||
MAX98373_PCM_SR_SET1_SR_MASK,
|
||||
sampling_rate);
|
||||
regmap_update_bits(max98373->regmap,
|
||||
MAX98373_R2028_PCM_SR_SETUP_2,
|
||||
MAX98373_PCM_SR_SET2_SR_MASK,
|
||||
sampling_rate << MAX98373_PCM_SR_SET2_SR_SHIFT);
|
||||
|
||||
/* set sampling rate of IV */
|
||||
if (max98373->interleave_mode &&
|
||||
sampling_rate > MAX98373_PCM_SR_SET1_SR_16000)
|
||||
regmap_update_bits(max98373->regmap,
|
||||
MAX98373_R2028_PCM_SR_SETUP_2,
|
||||
MAX98373_PCM_SR_SET2_IVADC_SR_MASK,
|
||||
sampling_rate - 3);
|
||||
else
|
||||
regmap_update_bits(max98373->regmap,
|
||||
MAX98373_R2028_PCM_SR_SETUP_2,
|
||||
MAX98373_PCM_SR_SET2_IVADC_SR_MASK,
|
||||
sampling_rate);
|
||||
|
||||
return max98373_set_clock(codec, params);
|
||||
err:
|
||||
return -EINVAL;
|
||||
}
|
||||
|
||||
static int max98373_dai_tdm_slot(struct snd_soc_dai *dai,
|
||||
unsigned int tx_mask, unsigned int rx_mask,
|
||||
int slots, int slot_width)
|
||||
{
|
||||
struct snd_soc_codec *codec = dai->codec;
|
||||
struct max98373_priv *max98373 = snd_soc_codec_get_drvdata(codec);
|
||||
int bsel = 0;
|
||||
unsigned int chan_sz = 0;
|
||||
unsigned int mask;
|
||||
int x, slot_found;
|
||||
|
||||
if (!tx_mask && !rx_mask && !slots && !slot_width)
|
||||
max98373->tdm_mode = false;
|
||||
else
|
||||
max98373->tdm_mode = true;
|
||||
|
||||
/* BCLK configuration */
|
||||
bsel = max98373_get_bclk_sel(slots * slot_width);
|
||||
if (bsel == 0) {
|
||||
dev_err(codec->dev, "BCLK %d not supported\n",
|
||||
slots * slot_width);
|
||||
return -EINVAL;
|
||||
}
|
||||
|
||||
regmap_update_bits(max98373->regmap,
|
||||
MAX98373_R2026_PCM_CLOCK_RATIO,
|
||||
MAX98373_PCM_CLK_SETUP_BSEL_MASK,
|
||||
bsel);
|
||||
|
||||
/* Channel size configuration */
|
||||
switch (slot_width) {
|
||||
case 16:
|
||||
chan_sz = MAX98373_PCM_MODE_CFG_CHANSZ_16;
|
||||
break;
|
||||
case 24:
|
||||
chan_sz = MAX98373_PCM_MODE_CFG_CHANSZ_24;
|
||||
break;
|
||||
case 32:
|
||||
chan_sz = MAX98373_PCM_MODE_CFG_CHANSZ_32;
|
||||
break;
|
||||
default:
|
||||
dev_err(codec->dev, "format unsupported %d\n",
|
||||
slot_width);
|
||||
return -EINVAL;
|
||||
}
|
||||
|
||||
regmap_update_bits(max98373->regmap,
|
||||
MAX98373_R2024_PCM_DATA_FMT_CFG,
|
||||
MAX98373_PCM_MODE_CFG_CHANSZ_MASK, chan_sz);
|
||||
|
||||
/* Rx slot configuration */
|
||||
slot_found = 0;
|
||||
mask = rx_mask;
|
||||
for (x = 0 ; x < 16 ; x++, mask >>= 1) {
|
||||
if (mask & 0x1) {
|
||||
if (slot_found == 0)
|
||||
regmap_update_bits(max98373->regmap,
|
||||
MAX98373_R2029_PCM_TO_SPK_MONO_MIX_1,
|
||||
MAX98373_PCM_TO_SPK_CH0_SRC_MASK, x);
|
||||
else
|
||||
regmap_write(max98373->regmap,
|
||||
MAX98373_R202A_PCM_TO_SPK_MONO_MIX_2,
|
||||
x);
|
||||
slot_found++;
|
||||
if (slot_found > 1)
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
/* Tx slot Hi-Z configuration */
|
||||
regmap_write(max98373->regmap,
|
||||
MAX98373_R2020_PCM_TX_HIZ_EN_1,
|
||||
~tx_mask & 0xFF);
|
||||
regmap_write(max98373->regmap,
|
||||
MAX98373_R2021_PCM_TX_HIZ_EN_2,
|
||||
(~tx_mask & 0xFF00) >> 8);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
#define MAX98373_RATES SNDRV_PCM_RATE_8000_96000
|
||||
|
||||
#define MAX98373_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | \
|
||||
SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S32_LE)
|
||||
|
||||
static const struct snd_soc_dai_ops max98373_dai_ops = {
|
||||
.set_fmt = max98373_dai_set_fmt,
|
||||
.hw_params = max98373_dai_hw_params,
|
||||
.set_tdm_slot = max98373_dai_tdm_slot,
|
||||
};
|
||||
|
||||
static int max98373_dac_event(struct snd_soc_dapm_widget *w,
|
||||
struct snd_kcontrol *kcontrol, int event)
|
||||
{
|
||||
struct snd_soc_codec *codec = snd_soc_dapm_to_codec(w->dapm);
|
||||
struct max98373_priv *max98373 = snd_soc_codec_get_drvdata(codec);
|
||||
|
||||
switch (event) {
|
||||
case SND_SOC_DAPM_POST_PMU:
|
||||
regmap_update_bits(max98373->regmap,
|
||||
MAX98373_R20FF_GLOBAL_SHDN,
|
||||
MAX98373_GLOBAL_EN_MASK, 1);
|
||||
break;
|
||||
case SND_SOC_DAPM_POST_PMD:
|
||||
regmap_update_bits(max98373->regmap,
|
||||
MAX98373_R20FF_GLOBAL_SHDN,
|
||||
MAX98373_GLOBAL_EN_MASK, 0);
|
||||
max98373->tdm_mode = 0;
|
||||
break;
|
||||
default:
|
||||
return 0;
|
||||
}
|
||||
return 0;
|
||||
}
|
||||
|
||||
static const char * const max98373_switch_text[] = {
|
||||
"Left", "Right", "LeftRight"};
|
||||
|
||||
static const struct soc_enum dai_sel_enum =
|
||||
SOC_ENUM_SINGLE(MAX98373_R2029_PCM_TO_SPK_MONO_MIX_1,
|
||||
MAX98373_PCM_TO_SPK_MONOMIX_CFG_SHIFT,
|
||||
3, max98373_switch_text);
|
||||
|
||||
static const struct snd_kcontrol_new max98373_dai_controls =
|
||||
SOC_DAPM_ENUM("DAI Sel", dai_sel_enum);
|
||||
|
||||
static const struct snd_kcontrol_new max98373_vi_control =
|
||||
SOC_DAPM_SINGLE("Switch", MAX98373_R202C_PCM_TX_EN, 0, 1, 0);
|
||||
|
||||
static const struct snd_kcontrol_new max98373_spkfb_control =
|
||||
SOC_DAPM_SINGLE("Switch", MAX98373_R2043_AMP_EN, 1, 1, 0);
|
||||
|
||||
static const struct snd_soc_dapm_widget max98373_dapm_widgets[] = {
|
||||
SND_SOC_DAPM_DAC_E("Amp Enable", "HiFi Playback",
|
||||
MAX98373_R202B_PCM_RX_EN, 0, 0, max98373_dac_event,
|
||||
SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_POST_PMD),
|
||||
SND_SOC_DAPM_MUX("DAI Sel Mux", SND_SOC_NOPM, 0, 0,
|
||||
&max98373_dai_controls),
|
||||
SND_SOC_DAPM_OUTPUT("BE_OUT"),
|
||||
SND_SOC_DAPM_AIF_OUT("Voltage Sense", "HiFi Capture", 0,
|
||||
MAX98373_R2047_IV_SENSE_ADC_EN, 0, 0),
|
||||
SND_SOC_DAPM_AIF_OUT("Current Sense", "HiFi Capture", 0,
|
||||
MAX98373_R2047_IV_SENSE_ADC_EN, 1, 0),
|
||||
SND_SOC_DAPM_AIF_OUT("Speaker FB Sense", "HiFi Capture", 0,
|
||||
SND_SOC_NOPM, 0, 0),
|
||||
SND_SOC_DAPM_SWITCH("VI Sense", SND_SOC_NOPM, 0, 0,
|
||||
&max98373_vi_control),
|
||||
SND_SOC_DAPM_SWITCH("SpkFB Sense", SND_SOC_NOPM, 0, 0,
|
||||
&max98373_spkfb_control),
|
||||
SND_SOC_DAPM_SIGGEN("VMON"),
|
||||
SND_SOC_DAPM_SIGGEN("IMON"),
|
||||
SND_SOC_DAPM_SIGGEN("FBMON"),
|
||||
};
|
||||
|
||||
static DECLARE_TLV_DB_SCALE(max98373_digital_tlv, 0, -50, 0);
|
||||
static const DECLARE_TLV_DB_RANGE(max98373_spk_tlv,
|
||||
0, 8, TLV_DB_SCALE_ITEM(0, 50, 0),
|
||||
9, 10, TLV_DB_SCALE_ITEM(500, 100, 0),
|
||||
);
|
||||
static const DECLARE_TLV_DB_RANGE(max98373_spkgain_max_tlv,
|
||||
0, 9, TLV_DB_SCALE_ITEM(800, 100, 0),
|
||||
);
|
||||
static const DECLARE_TLV_DB_RANGE(max98373_dht_step_size_tlv,
|
||||
0, 1, TLV_DB_SCALE_ITEM(25, 25, 0),
|
||||
2, 4, TLV_DB_SCALE_ITEM(100, 100, 0),
|
||||
);
|
||||
static const DECLARE_TLV_DB_RANGE(max98373_dht_spkgain_min_tlv,
|
||||
0, 9, TLV_DB_SCALE_ITEM(800, 100, 0),
|
||||
);
|
||||
static const DECLARE_TLV_DB_RANGE(max98373_dht_rotation_point_tlv,
|
||||
0, 1, TLV_DB_SCALE_ITEM(-50, -50, 0),
|
||||
2, 7, TLV_DB_SCALE_ITEM(-200, -100, 0),
|
||||
8, 9, TLV_DB_SCALE_ITEM(-1000, -200, 0),
|
||||
10, 11, TLV_DB_SCALE_ITEM(-1500, -300, 0),
|
||||
12, 13, TLV_DB_SCALE_ITEM(-2000, -200, 0),
|
||||
14, 15, TLV_DB_SCALE_ITEM(-2500, -500, 0),
|
||||
);
|
||||
static const DECLARE_TLV_DB_RANGE(max98373_limiter_thresh_tlv,
|
||||
0, 15, TLV_DB_SCALE_ITEM(0, -100, 0),
|
||||
);
|
||||
|
||||
static const DECLARE_TLV_DB_RANGE(max98373_bde_gain_tlv,
|
||||
0, 60, TLV_DB_SCALE_ITEM(0, -25, 0),
|
||||
);
|
||||
|
||||
static bool max98373_readable_register(struct device *dev, unsigned int reg)
|
||||
{
|
||||
switch (reg) {
|
||||
case MAX98373_R2001_INT_RAW1 ... MAX98373_R200C_INT_EN3:
|
||||
case MAX98373_R2010_IRQ_CTRL:
|
||||
case MAX98373_R2014_THERM_WARN_THRESH
|
||||
... MAX98373_R2018_THERM_FOLDBACK_EN:
|
||||
case MAX98373_R201E_PIN_DRIVE_STRENGTH
|
||||
... MAX98373_R2036_SOUNDWIRE_CTRL:
|
||||
case MAX98373_R203D_AMP_DIG_VOL_CTRL ... MAX98373_R2043_AMP_EN:
|
||||
case MAX98373_R2046_IV_SENSE_ADC_DSP_CFG
|
||||
... MAX98373_R2047_IV_SENSE_ADC_EN:
|
||||
case MAX98373_R2051_MEAS_ADC_SAMPLING_RATE
|
||||
... MAX98373_R2056_MEAS_ADC_PVDD_CH_EN:
|
||||
case MAX98373_R2090_BDE_LVL_HOLD ... MAX98373_R2092_BDE_CLIPPER_MODE:
|
||||
case MAX98373_R2097_BDE_L1_THRESH
|
||||
... MAX98373_R209B_BDE_THRESH_HYST:
|
||||
case MAX98373_R20A8_BDE_L1_CFG_1 ... MAX98373_R20B3_BDE_L4_CFG_3:
|
||||
case MAX98373_R20B5_BDE_EN ... MAX98373_R20B6_BDE_CUR_STATE_READBACK:
|
||||
case MAX98373_R20D1_DHT_CFG ... MAX98373_R20D4_DHT_EN:
|
||||
case MAX98373_R20E0_LIMITER_THRESH_CFG ... MAX98373_R20E2_LIMITER_EN:
|
||||
case MAX98373_R20FE_DEVICE_AUTO_RESTART_CFG
|
||||
... MAX98373_R20FF_GLOBAL_SHDN:
|
||||
case MAX98373_R21FF_REV_ID:
|
||||
return true;
|
||||
default:
|
||||
return false;
|
||||
}
|
||||
};
|
||||
|
||||
static bool max98373_volatile_reg(struct device *dev, unsigned int reg)
|
||||
{
|
||||
switch (reg) {
|
||||
case MAX98373_R2000_SW_RESET ... MAX98373_R2009_INT_FLAG3:
|
||||
case MAX98373_R2054_MEAS_ADC_PVDD_CH_READBACK:
|
||||
case MAX98373_R2055_MEAS_ADC_THERM_CH_READBACK:
|
||||
case MAX98373_R20B6_BDE_CUR_STATE_READBACK:
|
||||
case MAX98373_R21FF_REV_ID:
|
||||
return true;
|
||||
default:
|
||||
return false;
|
||||
}
|
||||
}
|
||||
|
||||
static const char * const max98373_output_voltage_lvl_text[] = {
|
||||
"5.43V", "6.09V", "6.83V", "7.67V", "8.60V",
|
||||
"9.65V", "10.83V", "12.15V", "13.63V", "15.29V"
|
||||
};
|
||||
|
||||
static SOC_ENUM_SINGLE_DECL(max98373_out_volt_enum,
|
||||
MAX98373_R203E_AMP_PATH_GAIN, 0,
|
||||
max98373_output_voltage_lvl_text);
|
||||
|
||||
static const char * const max98373_dht_attack_rate_text[] = {
|
||||
"17.5us", "35us", "70us", "140us",
|
||||
"280us", "560us", "1120us", "2240us"
|
||||
};
|
||||
|
||||
static SOC_ENUM_SINGLE_DECL(max98373_dht_attack_rate_enum,
|
||||
MAX98373_R20D2_DHT_ATTACK_CFG, 0,
|
||||
max98373_dht_attack_rate_text);
|
||||
|
||||
static const char * const max98373_dht_release_rate_text[] = {
|
||||
"45ms", "225ms", "450ms", "1150ms",
|
||||
"2250ms", "3100ms", "4500ms", "6750ms"
|
||||
};
|
||||
|
||||
static SOC_ENUM_SINGLE_DECL(max98373_dht_release_rate_enum,
|
||||
MAX98373_R20D3_DHT_RELEASE_CFG, 0,
|
||||
max98373_dht_release_rate_text);
|
||||
|
||||
static const char * const max98373_limiter_attack_rate_text[] = {
|
||||
"10us", "20us", "40us", "80us",
|
||||
"160us", "320us", "640us", "1.28ms",
|
||||
"2.56ms", "5.12ms", "10.24ms", "20.48ms",
|
||||
"40.96ms", "81.92ms", "16.384ms", "32.768ms"
|
||||
};
|
||||
|
||||
static SOC_ENUM_SINGLE_DECL(max98373_limiter_attack_rate_enum,
|
||||
MAX98373_R20E1_LIMITER_ATK_REL_RATES, 4,
|
||||
max98373_limiter_attack_rate_text);
|
||||
|
||||
static const char * const max98373_limiter_release_rate_text[] = {
|
||||
"40us", "80us", "160us", "320us",
|
||||
"640us", "1.28ms", "2.56ms", "5.120ms",
|
||||
"10.24ms", "20.48ms", "40.96ms", "81.92ms",
|
||||
"163.84ms", "327.68ms", "655.36ms", "1310.72ms"
|
||||
};
|
||||
|
||||
static SOC_ENUM_SINGLE_DECL(max98373_limiter_release_rate_enum,
|
||||
MAX98373_R20E1_LIMITER_ATK_REL_RATES, 0,
|
||||
max98373_limiter_release_rate_text);
|
||||
|
||||
static const char * const max98373_ADC_samplerate_text[] = {
|
||||
"333kHz", "192kHz", "64kHz", "48kHz"
|
||||
};
|
||||
|
||||
static SOC_ENUM_SINGLE_DECL(max98373_adc_samplerate_enum,
|
||||
MAX98373_R2051_MEAS_ADC_SAMPLING_RATE, 0,
|
||||
max98373_ADC_samplerate_text);
|
||||
|
||||
static const struct snd_kcontrol_new max98373_snd_controls[] = {
|
||||
SOC_SINGLE("Digital Vol Sel Switch", MAX98373_R203F_AMP_DSP_CFG,
|
||||
MAX98373_AMP_VOL_SEL_SHIFT, 1, 0),
|
||||
SOC_SINGLE("Volume Location Switch", MAX98373_R203F_AMP_DSP_CFG,
|
||||
MAX98373_AMP_VOL_SEL_SHIFT, 1, 0),
|
||||
SOC_SINGLE("Ramp Up Switch", MAX98373_R203F_AMP_DSP_CFG,
|
||||
MAX98373_AMP_DSP_CFG_RMP_UP_SHIFT, 1, 0),
|
||||
SOC_SINGLE("Ramp Down Switch", MAX98373_R203F_AMP_DSP_CFG,
|
||||
MAX98373_AMP_DSP_CFG_RMP_DN_SHIFT, 1, 0),
|
||||
SOC_SINGLE("CLK Monitor Switch", MAX98373_R20FE_DEVICE_AUTO_RESTART_CFG,
|
||||
MAX98373_CLOCK_MON_SHIFT, 1, 0),
|
||||
SOC_SINGLE("Dither Switch", MAX98373_R203F_AMP_DSP_CFG,
|
||||
MAX98373_AMP_DSP_CFG_DITH_SHIFT, 1, 0),
|
||||
SOC_SINGLE("DC Blocker Switch", MAX98373_R203F_AMP_DSP_CFG,
|
||||
MAX98373_AMP_DSP_CFG_DCBLK_SHIFT, 1, 0),
|
||||
SOC_SINGLE_TLV("Digital Volume", MAX98373_R203D_AMP_DIG_VOL_CTRL,
|
||||
0, 0x7F, 0, max98373_digital_tlv),
|
||||
SOC_SINGLE_TLV("Speaker Volume", MAX98373_R203E_AMP_PATH_GAIN,
|
||||
MAX98373_SPK_DIGI_GAIN_SHIFT, 10, 0, max98373_spk_tlv),
|
||||
SOC_SINGLE_TLV("FS Max Volume", MAX98373_R203E_AMP_PATH_GAIN,
|
||||
MAX98373_FS_GAIN_MAX_SHIFT, 9, 0, max98373_spkgain_max_tlv),
|
||||
SOC_ENUM("Output Voltage", max98373_out_volt_enum),
|
||||
/* Dynamic Headroom Tracking */
|
||||
SOC_SINGLE("DHT Switch", MAX98373_R20D4_DHT_EN,
|
||||
MAX98373_DHT_EN_SHIFT, 1, 0),
|
||||
SOC_SINGLE_TLV("DHT Min Volume", MAX98373_R20D1_DHT_CFG,
|
||||
MAX98373_DHT_SPK_GAIN_MIN_SHIFT, 9, 0, max98373_dht_spkgain_min_tlv),
|
||||
SOC_SINGLE_TLV("DHT Rot Pnt Volume", MAX98373_R20D1_DHT_CFG,
|
||||
MAX98373_DHT_ROT_PNT_SHIFT, 15, 0, max98373_dht_rotation_point_tlv),
|
||||
SOC_SINGLE_TLV("DHT Attack Step Volume", MAX98373_R20D2_DHT_ATTACK_CFG,
|
||||
MAX98373_DHT_ATTACK_STEP_SHIFT, 4, 0, max98373_dht_step_size_tlv),
|
||||
SOC_SINGLE_TLV("DHT Release Step Volume", MAX98373_R20D3_DHT_RELEASE_CFG,
|
||||
MAX98373_DHT_RELEASE_STEP_SHIFT, 4, 0, max98373_dht_step_size_tlv),
|
||||
SOC_ENUM("DHT Attack Rate", max98373_dht_attack_rate_enum),
|
||||
SOC_ENUM("DHT Release Rate", max98373_dht_release_rate_enum),
|
||||
/* ADC configuration */
|
||||
SOC_SINGLE("ADC PVDD CH Switch", MAX98373_R2056_MEAS_ADC_PVDD_CH_EN, 0, 1, 0),
|
||||
SOC_SINGLE("ADC PVDD FLT Switch", MAX98373_R2052_MEAS_ADC_PVDD_FLT_CFG,
|
||||
MAX98373_FLT_EN_SHIFT, 1, 0),
|
||||
SOC_SINGLE("ADC TEMP FLT Switch", MAX98373_R2053_MEAS_ADC_THERM_FLT_CFG,
|
||||
MAX98373_FLT_EN_SHIFT, 1, 0),
|
||||
SOC_SINGLE("ADC PVDD", MAX98373_R2054_MEAS_ADC_PVDD_CH_READBACK, 0, 0xFF, 0),
|
||||
SOC_SINGLE("ADC TEMP", MAX98373_R2055_MEAS_ADC_THERM_CH_READBACK, 0, 0xFF, 0),
|
||||
SOC_SINGLE("ADC PVDD FLT Coeff", MAX98373_R2052_MEAS_ADC_PVDD_FLT_CFG,
|
||||
0, 0x3, 0),
|
||||
SOC_SINGLE("ADC TEMP FLT Coeff", MAX98373_R2053_MEAS_ADC_THERM_FLT_CFG,
|
||||
0, 0x3, 0),
|
||||
SOC_ENUM("ADC SampleRate", max98373_adc_samplerate_enum),
|
||||
/* Brownout Detection Engine */
|
||||
SOC_SINGLE("BDE Switch", MAX98373_R20B5_BDE_EN, MAX98373_BDE_EN_SHIFT, 1, 0),
|
||||
SOC_SINGLE("BDE LVL4 Mute Switch", MAX98373_R20B2_BDE_L4_CFG_2,
|
||||
MAX98373_LVL4_MUTE_EN_SHIFT, 1, 0),
|
||||
SOC_SINGLE("BDE LVL4 Hold Switch", MAX98373_R20B2_BDE_L4_CFG_2,
|
||||
MAX98373_LVL4_HOLD_EN_SHIFT, 1, 0),
|
||||
SOC_SINGLE("BDE LVL1 Thresh", MAX98373_R2097_BDE_L1_THRESH, 0, 0xFF, 0),
|
||||
SOC_SINGLE("BDE LVL2 Thresh", MAX98373_R2098_BDE_L2_THRESH, 0, 0xFF, 0),
|
||||
SOC_SINGLE("BDE LVL3 Thresh", MAX98373_R2099_BDE_L3_THRESH, 0, 0xFF, 0),
|
||||
SOC_SINGLE("BDE LVL4 Thresh", MAX98373_R209A_BDE_L4_THRESH, 0, 0xFF, 0),
|
||||
SOC_SINGLE("BDE Active Level", MAX98373_R20B6_BDE_CUR_STATE_READBACK, 0, 8, 0),
|
||||
SOC_SINGLE("BDE Clip Mode Switch", MAX98373_R2092_BDE_CLIPPER_MODE, 0, 1, 0),
|
||||
SOC_SINGLE("BDE Thresh Hysteresis", MAX98373_R209B_BDE_THRESH_HYST, 0, 0xFF, 0),
|
||||
SOC_SINGLE("BDE Hold Time", MAX98373_R2090_BDE_LVL_HOLD, 0, 0xFF, 0),
|
||||
SOC_SINGLE("BDE Attack Rate", MAX98373_R2091_BDE_GAIN_ATK_REL_RATE, 4, 0xF, 0),
|
||||
SOC_SINGLE("BDE Release Rate", MAX98373_R2091_BDE_GAIN_ATK_REL_RATE, 0, 0xF, 0),
|
||||
SOC_SINGLE_TLV("BDE LVL1 Clip Thresh Volume", MAX98373_R20A9_BDE_L1_CFG_2,
|
||||
0, 0x3C, 0, max98373_bde_gain_tlv),
|
||||
SOC_SINGLE_TLV("BDE LVL2 Clip Thresh Volume", MAX98373_R20AC_BDE_L2_CFG_2,
|
||||
0, 0x3C, 0, max98373_bde_gain_tlv),
|
||||
SOC_SINGLE_TLV("BDE LVL3 Clip Thresh Volume", MAX98373_R20AF_BDE_L3_CFG_2,
|
||||
0, 0x3C, 0, max98373_bde_gain_tlv),
|
||||
SOC_SINGLE_TLV("BDE LVL4 Clip Thresh Volume", MAX98373_R20B2_BDE_L4_CFG_2,
|
||||
0, 0x3C, 0, max98373_bde_gain_tlv),
|
||||
SOC_SINGLE_TLV("BDE LVL1 Clip Reduction Volume", MAX98373_R20AA_BDE_L1_CFG_3,
|
||||
0, 0x3C, 0, max98373_bde_gain_tlv),
|
||||
SOC_SINGLE_TLV("BDE LVL2 Clip Reduction Volume", MAX98373_R20AD_BDE_L2_CFG_3,
|
||||
0, 0x3C, 0, max98373_bde_gain_tlv),
|
||||
SOC_SINGLE_TLV("BDE LVL3 Clip Reduction Volume", MAX98373_R20B0_BDE_L3_CFG_3,
|
||||
0, 0x3C, 0, max98373_bde_gain_tlv),
|
||||
SOC_SINGLE_TLV("BDE LVL4 Clip Reduction Volume", MAX98373_R20B3_BDE_L4_CFG_3,
|
||||
0, 0x3C, 0, max98373_bde_gain_tlv),
|
||||
SOC_SINGLE_TLV("BDE LVL1 Limiter Thresh Volume", MAX98373_R20A8_BDE_L1_CFG_1,
|
||||
0, 0xF, 0, max98373_limiter_thresh_tlv),
|
||||
SOC_SINGLE_TLV("BDE LVL2 Limiter Thresh Volume", MAX98373_R20AB_BDE_L2_CFG_1,
|
||||
0, 0xF, 0, max98373_limiter_thresh_tlv),
|
||||
SOC_SINGLE_TLV("BDE LVL3 Limiter Thresh Volume", MAX98373_R20AE_BDE_L3_CFG_1,
|
||||
0, 0xF, 0, max98373_limiter_thresh_tlv),
|
||||
SOC_SINGLE_TLV("BDE LVL4 Limiter Thresh Volume", MAX98373_R20B1_BDE_L4_CFG_1,
|
||||
0, 0xF, 0, max98373_limiter_thresh_tlv),
|
||||
/* Limiter */
|
||||
SOC_SINGLE("Limiter Switch", MAX98373_R20E2_LIMITER_EN,
|
||||
MAX98373_LIMITER_EN_SHIFT, 1, 0),
|
||||
SOC_SINGLE("Limiter Src Switch", MAX98373_R20E0_LIMITER_THRESH_CFG,
|
||||
MAX98373_LIMITER_THRESH_SRC_SHIFT, 1, 0),
|
||||
SOC_SINGLE_TLV("Limiter Thresh Volume", MAX98373_R20E0_LIMITER_THRESH_CFG,
|
||||
MAX98373_LIMITER_THRESH_SHIFT, 15, 0, max98373_limiter_thresh_tlv),
|
||||
SOC_ENUM("Limiter Attack Rate", max98373_limiter_attack_rate_enum),
|
||||
SOC_ENUM("Limiter Release Rate", max98373_limiter_release_rate_enum),
|
||||
};
|
||||
|
||||
static const struct snd_soc_dapm_route max98373_audio_map[] = {
|
||||
/* Plabyack */
|
||||
{"DAI Sel Mux", "Left", "Amp Enable"},
|
||||
{"DAI Sel Mux", "Right", "Amp Enable"},
|
||||
{"DAI Sel Mux", "LeftRight", "Amp Enable"},
|
||||
{"BE_OUT", NULL, "DAI Sel Mux"},
|
||||
/* Capture */
|
||||
{ "VI Sense", "Switch", "VMON" },
|
||||
{ "VI Sense", "Switch", "IMON" },
|
||||
{ "SpkFB Sense", "Switch", "FBMON" },
|
||||
{ "Voltage Sense", NULL, "VI Sense" },
|
||||
{ "Current Sense", NULL, "VI Sense" },
|
||||
{ "Speaker FB Sense", NULL, "SpkFB Sense" },
|
||||
};
|
||||
|
||||
static struct snd_soc_dai_driver max98373_dai[] = {
|
||||
{
|
||||
.name = "max98373-aif1",
|
||||
.playback = {
|
||||
.stream_name = "HiFi Playback",
|
||||
.channels_min = 1,
|
||||
.channels_max = 2,
|
||||
.rates = MAX98373_RATES,
|
||||
.formats = MAX98373_FORMATS,
|
||||
},
|
||||
.capture = {
|
||||
.stream_name = "HiFi Capture",
|
||||
.channels_min = 1,
|
||||
.channels_max = 2,
|
||||
.rates = MAX98373_RATES,
|
||||
.formats = MAX98373_FORMATS,
|
||||
},
|
||||
.ops = &max98373_dai_ops,
|
||||
}
|
||||
};
|
||||
|
||||
static int max98373_probe(struct snd_soc_codec *codec)
|
||||
{
|
||||
struct max98373_priv *max98373 = snd_soc_codec_get_drvdata(codec);
|
||||
|
||||
codec->control_data = max98373->regmap;
|
||||
|
||||
/* Software Reset */
|
||||
regmap_write(max98373->regmap,
|
||||
MAX98373_R2000_SW_RESET, MAX98373_SOFT_RESET);
|
||||
|
||||
/* IV default slot configuration */
|
||||
regmap_write(max98373->regmap,
|
||||
MAX98373_R2020_PCM_TX_HIZ_EN_1,
|
||||
0xFF);
|
||||
regmap_write(max98373->regmap,
|
||||
MAX98373_R2021_PCM_TX_HIZ_EN_2,
|
||||
0xFF);
|
||||
/* L/R mix configuration */
|
||||
regmap_write(max98373->regmap,
|
||||
MAX98373_R2029_PCM_TO_SPK_MONO_MIX_1,
|
||||
0x80);
|
||||
regmap_write(max98373->regmap,
|
||||
MAX98373_R202A_PCM_TO_SPK_MONO_MIX_2,
|
||||
0x1);
|
||||
/* Set inital volume (0dB) */
|
||||
regmap_write(max98373->regmap,
|
||||
MAX98373_R203D_AMP_DIG_VOL_CTRL,
|
||||
0x00);
|
||||
regmap_write(max98373->regmap,
|
||||
MAX98373_R203E_AMP_PATH_GAIN,
|
||||
0x00);
|
||||
/* Enable DC blocker */
|
||||
regmap_write(max98373->regmap,
|
||||
MAX98373_R203F_AMP_DSP_CFG,
|
||||
0x3);
|
||||
/* Enable IMON VMON DC blocker */
|
||||
regmap_write(max98373->regmap,
|
||||
MAX98373_R2046_IV_SENSE_ADC_DSP_CFG,
|
||||
0x7);
|
||||
/* voltage, current slot configuration */
|
||||
regmap_write(max98373->regmap,
|
||||
MAX98373_R2022_PCM_TX_SRC_1,
|
||||
(max98373->i_slot << MAX98373_PCM_TX_CH_SRC_A_I_SHIFT |
|
||||
max98373->v_slot) & 0xFF);
|
||||
if (max98373->v_slot < 8)
|
||||
regmap_update_bits(max98373->regmap,
|
||||
MAX98373_R2020_PCM_TX_HIZ_EN_1,
|
||||
1 << max98373->v_slot, 0);
|
||||
else
|
||||
regmap_update_bits(max98373->regmap,
|
||||
MAX98373_R2021_PCM_TX_HIZ_EN_2,
|
||||
1 << (max98373->v_slot - 8), 0);
|
||||
|
||||
if (max98373->i_slot < 8)
|
||||
regmap_update_bits(max98373->regmap,
|
||||
MAX98373_R2020_PCM_TX_HIZ_EN_1,
|
||||
1 << max98373->i_slot, 0);
|
||||
else
|
||||
regmap_update_bits(max98373->regmap,
|
||||
MAX98373_R2021_PCM_TX_HIZ_EN_2,
|
||||
1 << (max98373->i_slot - 8), 0);
|
||||
|
||||
/* speaker feedback slot configuration */
|
||||
regmap_write(max98373->regmap,
|
||||
MAX98373_R2023_PCM_TX_SRC_2,
|
||||
max98373->spkfb_slot & 0xFF);
|
||||
|
||||
/* Set interleave mode */
|
||||
if (max98373->interleave_mode)
|
||||
regmap_update_bits(max98373->regmap,
|
||||
MAX98373_R2024_PCM_DATA_FMT_CFG,
|
||||
MAX98373_PCM_TX_CH_INTERLEAVE_MASK,
|
||||
MAX98373_PCM_TX_CH_INTERLEAVE_MASK);
|
||||
|
||||
/* Speaker enable */
|
||||
regmap_update_bits(max98373->regmap,
|
||||
MAX98373_R2043_AMP_EN,
|
||||
MAX98373_SPK_EN_MASK, 1);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
#ifdef CONFIG_PM_SLEEP
|
||||
static int max98373_suspend(struct device *dev)
|
||||
{
|
||||
struct max98373_priv *max98373 = dev_get_drvdata(dev);
|
||||
|
||||
regcache_cache_only(max98373->regmap, true);
|
||||
regcache_mark_dirty(max98373->regmap);
|
||||
return 0;
|
||||
}
|
||||
static int max98373_resume(struct device *dev)
|
||||
{
|
||||
struct max98373_priv *max98373 = dev_get_drvdata(dev);
|
||||
|
||||
regmap_write(max98373->regmap,
|
||||
MAX98373_R2000_SW_RESET, MAX98373_SOFT_RESET);
|
||||
regcache_cache_only(max98373->regmap, false);
|
||||
regcache_sync(max98373->regmap);
|
||||
return 0;
|
||||
}
|
||||
#endif
|
||||
|
||||
static const struct dev_pm_ops max98373_pm = {
|
||||
SET_SYSTEM_SLEEP_PM_OPS(max98373_suspend, max98373_resume)
|
||||
};
|
||||
|
||||
static const struct snd_soc_codec_driver soc_codec_dev_max98373 = {
|
||||
.probe = max98373_probe,
|
||||
.component_driver = {
|
||||
.controls = max98373_snd_controls,
|
||||
.num_controls = ARRAY_SIZE(max98373_snd_controls),
|
||||
.dapm_widgets = max98373_dapm_widgets,
|
||||
.num_dapm_widgets = ARRAY_SIZE(max98373_dapm_widgets),
|
||||
.dapm_routes = max98373_audio_map,
|
||||
.num_dapm_routes = ARRAY_SIZE(max98373_audio_map),
|
||||
},
|
||||
};
|
||||
|
||||
static const struct regmap_config max98373_regmap = {
|
||||
.reg_bits = 16,
|
||||
.val_bits = 8,
|
||||
.max_register = MAX98373_R21FF_REV_ID,
|
||||
.reg_defaults = max98373_reg,
|
||||
.num_reg_defaults = ARRAY_SIZE(max98373_reg),
|
||||
.readable_reg = max98373_readable_register,
|
||||
.volatile_reg = max98373_volatile_reg,
|
||||
.cache_type = REGCACHE_RBTREE,
|
||||
};
|
||||
|
||||
static void max98373_slot_config(struct i2c_client *i2c,
|
||||
struct max98373_priv *max98373)
|
||||
{
|
||||
int value;
|
||||
struct device *dev = &i2c->dev;
|
||||
|
||||
if (!device_property_read_u32(dev, "maxim,vmon-slot-no", &value))
|
||||
max98373->v_slot = value & 0xF;
|
||||
else
|
||||
max98373->v_slot = 0;
|
||||
|
||||
if (!device_property_read_u32(dev, "maxim,imon-slot-no", &value))
|
||||
max98373->i_slot = value & 0xF;
|
||||
else
|
||||
max98373->i_slot = 1;
|
||||
|
||||
if (!device_property_read_u32(dev, "maxim,spkfb-slot-no", &value))
|
||||
max98373->spkfb_slot = value & 0xF;
|
||||
else
|
||||
max98373->spkfb_slot = 2;
|
||||
}
|
||||
|
||||
static int max98373_i2c_probe(struct i2c_client *i2c,
|
||||
const struct i2c_device_id *id)
|
||||
{
|
||||
|
||||
int ret = 0;
|
||||
int reg = 0;
|
||||
struct max98373_priv *max98373 = NULL;
|
||||
|
||||
max98373 = devm_kzalloc(&i2c->dev, sizeof(*max98373), GFP_KERNEL);
|
||||
|
||||
if (!max98373) {
|
||||
ret = -ENOMEM;
|
||||
return ret;
|
||||
}
|
||||
i2c_set_clientdata(i2c, max98373);
|
||||
|
||||
/* update interleave mode info */
|
||||
if (device_property_read_bool(&i2c->dev, "maxim,interleave_mode"))
|
||||
max98373->interleave_mode = 1;
|
||||
else
|
||||
max98373->interleave_mode = 0;
|
||||
|
||||
|
||||
/* regmap initialization */
|
||||
max98373->regmap
|
||||
= devm_regmap_init_i2c(i2c, &max98373_regmap);
|
||||
if (IS_ERR(max98373->regmap)) {
|
||||
ret = PTR_ERR(max98373->regmap);
|
||||
dev_err(&i2c->dev,
|
||||
"Failed to allocate regmap: %d\n", ret);
|
||||
return ret;
|
||||
}
|
||||
|
||||
/* Check Revision ID */
|
||||
ret = regmap_read(max98373->regmap,
|
||||
MAX98373_R21FF_REV_ID, ®);
|
||||
if (ret < 0) {
|
||||
dev_err(&i2c->dev,
|
||||
"Failed to read: 0x%02X\n", MAX98373_R21FF_REV_ID);
|
||||
return ret;
|
||||
}
|
||||
dev_info(&i2c->dev, "MAX98373 revisionID: 0x%02X\n", reg);
|
||||
|
||||
/* voltage/current slot configuration */
|
||||
max98373_slot_config(i2c, max98373);
|
||||
|
||||
/* codec registeration */
|
||||
ret = snd_soc_register_codec(&i2c->dev, &soc_codec_dev_max98373,
|
||||
max98373_dai, ARRAY_SIZE(max98373_dai));
|
||||
if (ret < 0)
|
||||
dev_err(&i2c->dev, "Failed to register codec: %d\n", ret);
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
||||
static int max98373_i2c_remove(struct i2c_client *client)
|
||||
{
|
||||
snd_soc_unregister_codec(&client->dev);
|
||||
return 0;
|
||||
}
|
||||
|
||||
static const struct i2c_device_id max98373_i2c_id[] = {
|
||||
{ "max98373", 0},
|
||||
{ },
|
||||
};
|
||||
|
||||
MODULE_DEVICE_TABLE(i2c, max98373_i2c_id);
|
||||
|
||||
#if defined(CONFIG_OF)
|
||||
static const struct of_device_id max98373_of_match[] = {
|
||||
{ .compatible = "maxim,max98373", },
|
||||
{ }
|
||||
};
|
||||
MODULE_DEVICE_TABLE(of, max98373_of_match);
|
||||
#endif
|
||||
|
||||
#ifdef CONFIG_ACPI
|
||||
static const struct acpi_device_id max98373_acpi_match[] = {
|
||||
{ "MX98373", 0 },
|
||||
{},
|
||||
};
|
||||
MODULE_DEVICE_TABLE(acpi, max98373_acpi_match);
|
||||
#endif
|
||||
|
||||
static struct i2c_driver max98373_i2c_driver = {
|
||||
.driver = {
|
||||
.name = "max98373",
|
||||
.of_match_table = of_match_ptr(max98373_of_match),
|
||||
.acpi_match_table = ACPI_PTR(max98373_acpi_match),
|
||||
.pm = &max98373_pm,
|
||||
},
|
||||
.probe = max98373_i2c_probe,
|
||||
.remove = max98373_i2c_remove,
|
||||
.id_table = max98373_i2c_id,
|
||||
};
|
||||
|
||||
module_i2c_driver(max98373_i2c_driver)
|
||||
|
||||
MODULE_DESCRIPTION("ALSA SoC MAX98373 driver");
|
||||
MODULE_AUTHOR("Ryan Lee <ryans.lee@maximintegrated.com>");
|
||||
MODULE_LICENSE("GPL");
|
||||
|
|
@ -0,0 +1,212 @@
|
|||
/* SPDX-License-Identifier: GPL-2.0 */
|
||||
/* Copyright (c) 2017, Maxim Integrated */
|
||||
#ifndef _MAX98373_H
|
||||
#define _MAX98373_H
|
||||
|
||||
#define MAX98373_R2000_SW_RESET 0x2000
|
||||
#define MAX98373_R2001_INT_RAW1 0x2001
|
||||
#define MAX98373_R2002_INT_RAW2 0x2002
|
||||
#define MAX98373_R2003_INT_RAW3 0x2003
|
||||
#define MAX98373_R2004_INT_STATE1 0x2004
|
||||
#define MAX98373_R2005_INT_STATE2 0x2005
|
||||
#define MAX98373_R2006_INT_STATE3 0x2006
|
||||
#define MAX98373_R2007_INT_FLAG1 0x2007
|
||||
#define MAX98373_R2008_INT_FLAG2 0x2008
|
||||
#define MAX98373_R2009_INT_FLAG3 0x2009
|
||||
#define MAX98373_R200A_INT_EN1 0x200A
|
||||
#define MAX98373_R200B_INT_EN2 0x200B
|
||||
#define MAX98373_R200C_INT_EN3 0x200C
|
||||
#define MAX98373_R200D_INT_FLAG_CLR1 0x200D
|
||||
#define MAX98373_R200E_INT_FLAG_CLR2 0x200E
|
||||
#define MAX98373_R200F_INT_FLAG_CLR3 0x200F
|
||||
#define MAX98373_R2010_IRQ_CTRL 0x2010
|
||||
#define MAX98373_R2014_THERM_WARN_THRESH 0x2014
|
||||
#define MAX98373_R2015_THERM_SHDN_THRESH 0x2015
|
||||
#define MAX98373_R2016_THERM_HYSTERESIS 0x2016
|
||||
#define MAX98373_R2017_THERM_FOLDBACK_SET 0x2017
|
||||
#define MAX98373_R2018_THERM_FOLDBACK_EN 0x2018
|
||||
#define MAX98373_R201E_PIN_DRIVE_STRENGTH 0x201E
|
||||
#define MAX98373_R2020_PCM_TX_HIZ_EN_1 0x2020
|
||||
#define MAX98373_R2021_PCM_TX_HIZ_EN_2 0x2021
|
||||
#define MAX98373_R2022_PCM_TX_SRC_1 0x2022
|
||||
#define MAX98373_R2023_PCM_TX_SRC_2 0x2023
|
||||
#define MAX98373_R2024_PCM_DATA_FMT_CFG 0x2024
|
||||
#define MAX98373_R2025_AUDIO_IF_MODE 0x2025
|
||||
#define MAX98373_R2026_PCM_CLOCK_RATIO 0x2026
|
||||
#define MAX98373_R2027_PCM_SR_SETUP_1 0x2027
|
||||
#define MAX98373_R2028_PCM_SR_SETUP_2 0x2028
|
||||
#define MAX98373_R2029_PCM_TO_SPK_MONO_MIX_1 0x2029
|
||||
#define MAX98373_R202A_PCM_TO_SPK_MONO_MIX_2 0x202A
|
||||
#define MAX98373_R202B_PCM_RX_EN 0x202B
|
||||
#define MAX98373_R202C_PCM_TX_EN 0x202C
|
||||
#define MAX98373_R202E_ICC_RX_CH_EN_1 0x202E
|
||||
#define MAX98373_R202F_ICC_RX_CH_EN_2 0x202F
|
||||
#define MAX98373_R2030_ICC_TX_HIZ_EN_1 0x2030
|
||||
#define MAX98373_R2031_ICC_TX_HIZ_EN_2 0x2031
|
||||
#define MAX98373_R2032_ICC_LINK_EN_CFG 0x2032
|
||||
#define MAX98373_R2034_ICC_TX_CNTL 0x2034
|
||||
#define MAX98373_R2035_ICC_TX_EN 0x2035
|
||||
#define MAX98373_R2036_SOUNDWIRE_CTRL 0x2036
|
||||
#define MAX98373_R203D_AMP_DIG_VOL_CTRL 0x203D
|
||||
#define MAX98373_R203E_AMP_PATH_GAIN 0x203E
|
||||
#define MAX98373_R203F_AMP_DSP_CFG 0x203F
|
||||
#define MAX98373_R2040_TONE_GEN_CFG 0x2040
|
||||
#define MAX98373_R2041_AMP_CFG 0x2041
|
||||
#define MAX98373_R2042_AMP_EDGE_RATE_CFG 0x2042
|
||||
#define MAX98373_R2043_AMP_EN 0x2043
|
||||
#define MAX98373_R2046_IV_SENSE_ADC_DSP_CFG 0x2046
|
||||
#define MAX98373_R2047_IV_SENSE_ADC_EN 0x2047
|
||||
#define MAX98373_R2051_MEAS_ADC_SAMPLING_RATE 0x2051
|
||||
#define MAX98373_R2052_MEAS_ADC_PVDD_FLT_CFG 0x2052
|
||||
#define MAX98373_R2053_MEAS_ADC_THERM_FLT_CFG 0x2053
|
||||
#define MAX98373_R2054_MEAS_ADC_PVDD_CH_READBACK 0x2054
|
||||
#define MAX98373_R2055_MEAS_ADC_THERM_CH_READBACK 0x2055
|
||||
#define MAX98373_R2056_MEAS_ADC_PVDD_CH_EN 0x2056
|
||||
#define MAX98373_R2090_BDE_LVL_HOLD 0x2090
|
||||
#define MAX98373_R2091_BDE_GAIN_ATK_REL_RATE 0x2091
|
||||
#define MAX98373_R2092_BDE_CLIPPER_MODE 0x2092
|
||||
#define MAX98373_R2097_BDE_L1_THRESH 0x2097
|
||||
#define MAX98373_R2098_BDE_L2_THRESH 0x2098
|
||||
#define MAX98373_R2099_BDE_L3_THRESH 0x2099
|
||||
#define MAX98373_R209A_BDE_L4_THRESH 0x209A
|
||||
#define MAX98373_R209B_BDE_THRESH_HYST 0x209B
|
||||
#define MAX98373_R20A8_BDE_L1_CFG_1 0x20A8
|
||||
#define MAX98373_R20A9_BDE_L1_CFG_2 0x20A9
|
||||
#define MAX98373_R20AA_BDE_L1_CFG_3 0x20AA
|
||||
#define MAX98373_R20AB_BDE_L2_CFG_1 0x20AB
|
||||
#define MAX98373_R20AC_BDE_L2_CFG_2 0x20AC
|
||||
#define MAX98373_R20AD_BDE_L2_CFG_3 0x20AD
|
||||
#define MAX98373_R20AE_BDE_L3_CFG_1 0x20AE
|
||||
#define MAX98373_R20AF_BDE_L3_CFG_2 0x20AF
|
||||
#define MAX98373_R20B0_BDE_L3_CFG_3 0x20B0
|
||||
#define MAX98373_R20B1_BDE_L4_CFG_1 0x20B1
|
||||
#define MAX98373_R20B2_BDE_L4_CFG_2 0x20B2
|
||||
#define MAX98373_R20B3_BDE_L4_CFG_3 0x20B3
|
||||
#define MAX98373_R20B4_BDE_INFINITE_HOLD_RELEASE 0x20B4
|
||||
#define MAX98373_R20B5_BDE_EN 0x20B5
|
||||
#define MAX98373_R20B6_BDE_CUR_STATE_READBACK 0x20B6
|
||||
#define MAX98373_R20D1_DHT_CFG 0x20D1
|
||||
#define MAX98373_R20D2_DHT_ATTACK_CFG 0x20D2
|
||||
#define MAX98373_R20D3_DHT_RELEASE_CFG 0x20D3
|
||||
#define MAX98373_R20D4_DHT_EN 0x20D4
|
||||
#define MAX98373_R20E0_LIMITER_THRESH_CFG 0x20E0
|
||||
#define MAX98373_R20E1_LIMITER_ATK_REL_RATES 0x20E1
|
||||
#define MAX98373_R20E2_LIMITER_EN 0x20E2
|
||||
#define MAX98373_R20FE_DEVICE_AUTO_RESTART_CFG 0x20FE
|
||||
#define MAX98373_R20FF_GLOBAL_SHDN 0x20FF
|
||||
#define MAX98373_R21FF_REV_ID 0x21FF
|
||||
|
||||
/* MAX98373_R2022_PCM_TX_SRC_1 */
|
||||
#define MAX98373_PCM_TX_CH_SRC_A_V_SHIFT (0)
|
||||
#define MAX98373_PCM_TX_CH_SRC_A_I_SHIFT (4)
|
||||
|
||||
/* MAX98373_R2024_PCM_DATA_FMT_CFG */
|
||||
#define MAX98373_PCM_MODE_CFG_FORMAT_MASK (0x7 << 3)
|
||||
#define MAX98373_PCM_MODE_CFG_FORMAT_SHIFT (3)
|
||||
#define MAX98373_PCM_TX_CH_INTERLEAVE_MASK (0x1 << 2)
|
||||
#define MAX98373_PCM_FORMAT_I2S (0x0 << 0)
|
||||
#define MAX98373_PCM_FORMAT_LJ (0x1 << 0)
|
||||
#define MAX98373_PCM_FORMAT_TDM_MODE0 (0x3 << 0)
|
||||
#define MAX98373_PCM_FORMAT_TDM_MODE1 (0x4 << 0)
|
||||
#define MAX98373_PCM_FORMAT_TDM_MODE2 (0x5 << 0)
|
||||
#define MAX98373_PCM_MODE_CFG_CHANSZ_MASK (0x3 << 6)
|
||||
#define MAX98373_PCM_MODE_CFG_CHANSZ_16 (0x1 << 6)
|
||||
#define MAX98373_PCM_MODE_CFG_CHANSZ_24 (0x2 << 6)
|
||||
#define MAX98373_PCM_MODE_CFG_CHANSZ_32 (0x3 << 6)
|
||||
|
||||
/* MAX98373_R2026_PCM_CLOCK_RATIO */
|
||||
#define MAX98373_PCM_MODE_CFG_PCM_BCLKEDGE (0x1 << 4)
|
||||
#define MAX98373_PCM_CLK_SETUP_BSEL_MASK (0xF << 0)
|
||||
|
||||
/* MAX98373_R2027_PCM_SR_SETUP_1 */
|
||||
#define MAX98373_PCM_SR_SET1_SR_MASK (0xF << 0)
|
||||
#define MAX98373_PCM_SR_SET1_SR_8000 (0x0 << 0)
|
||||
#define MAX98373_PCM_SR_SET1_SR_11025 (0x1 << 0)
|
||||
#define MAX98373_PCM_SR_SET1_SR_12000 (0x2 << 0)
|
||||
#define MAX98373_PCM_SR_SET1_SR_16000 (0x3 << 0)
|
||||
#define MAX98373_PCM_SR_SET1_SR_22050 (0x4 << 0)
|
||||
#define MAX98373_PCM_SR_SET1_SR_24000 (0x5 << 0)
|
||||
#define MAX98373_PCM_SR_SET1_SR_32000 (0x6 << 0)
|
||||
#define MAX98373_PCM_SR_SET1_SR_44100 (0x7 << 0)
|
||||
#define MAX98373_PCM_SR_SET1_SR_48000 (0x8 << 0)
|
||||
|
||||
/* MAX98373_R2028_PCM_SR_SETUP_2 */
|
||||
#define MAX98373_PCM_SR_SET2_SR_MASK (0xF << 4)
|
||||
#define MAX98373_PCM_SR_SET2_SR_SHIFT (4)
|
||||
#define MAX98373_PCM_SR_SET2_IVADC_SR_MASK (0xF << 0)
|
||||
|
||||
/* MAX98373_R2029_PCM_TO_SPK_MONO_MIX_1 */
|
||||
#define MAX98373_PCM_TO_SPK_MONOMIX_CFG_MASK (0x3 << 6)
|
||||
#define MAX98373_PCM_TO_SPK_MONOMIX_CFG_SHIFT (6)
|
||||
#define MAX98373_PCM_TO_SPK_CH0_SRC_MASK (0xF << 0)
|
||||
|
||||
/* MAX98373_R203E_AMP_PATH_GAIN */
|
||||
#define MAX98373_SPK_DIGI_GAIN_MASK (0xF << 4)
|
||||
#define MAX98373_SPK_DIGI_GAIN_SHIFT (4)
|
||||
#define MAX98373_FS_GAIN_MAX_MASK (0xF << 0)
|
||||
#define MAX98373_FS_GAIN_MAX_SHIFT (0)
|
||||
|
||||
/* MAX98373_R203F_AMP_DSP_CFG */
|
||||
#define MAX98373_AMP_DSP_CFG_DCBLK_SHIFT (0)
|
||||
#define MAX98373_AMP_DSP_CFG_DITH_SHIFT (1)
|
||||
#define MAX98373_AMP_DSP_CFG_RMP_UP_SHIFT (2)
|
||||
#define MAX98373_AMP_DSP_CFG_RMP_DN_SHIFT (3)
|
||||
#define MAX98373_AMP_DSP_CFG_DAC_INV_SHIFT (5)
|
||||
#define MAX98373_AMP_VOL_SEL_SHIFT (7)
|
||||
|
||||
/* MAX98373_R2043_AMP_EN */
|
||||
#define MAX98373_SPKFB_EN_MASK (0x1 << 1)
|
||||
#define MAX98373_SPK_EN_MASK (0x1 << 0)
|
||||
#define MAX98373_SPKFB_EN_SHIFT (1)
|
||||
|
||||
/*MAX98373_R2052_MEAS_ADC_PVDD_FLT_CFG */
|
||||
#define MAX98373_FLT_EN_SHIFT (4)
|
||||
|
||||
/* MAX98373_R20B2_BDE_L4_CFG_2 */
|
||||
#define MAX98373_LVL4_MUTE_EN_SHIFT (7)
|
||||
#define MAX98373_LVL4_HOLD_EN_SHIFT (6)
|
||||
|
||||
/* MAX98373_R20B5_BDE_EN */
|
||||
#define MAX98373_BDE_EN_SHIFT (0)
|
||||
|
||||
/* MAX98373_R20D1_DHT_CFG */
|
||||
#define MAX98373_DHT_SPK_GAIN_MIN_SHIFT (4)
|
||||
#define MAX98373_DHT_ROT_PNT_SHIFT (0)
|
||||
|
||||
/* MAX98373_R20D2_DHT_ATTACK_CFG */
|
||||
#define MAX98373_DHT_ATTACK_STEP_SHIFT (3)
|
||||
#define MAX98373_DHT_ATTACK_RATE_SHIFT (0)
|
||||
|
||||
/* MAX98373_R20D3_DHT_RELEASE_CFG */
|
||||
#define MAX98373_DHT_RELEASE_STEP_SHIFT (3)
|
||||
#define MAX98373_DHT_RELEASE_RATE_SHIFT (0)
|
||||
|
||||
/* MAX98373_R20D4_DHT_EN */
|
||||
#define MAX98373_DHT_EN_SHIFT (0)
|
||||
|
||||
/* MAX98373_R20E0_LIMITER_THRESH_CFG */
|
||||
#define MAX98373_LIMITER_THRESH_SHIFT (2)
|
||||
#define MAX98373_LIMITER_THRESH_SRC_SHIFT (0)
|
||||
|
||||
/* MAX98373_R20E2_LIMITER_EN */
|
||||
#define MAX98373_LIMITER_EN_SHIFT (0)
|
||||
|
||||
/* MAX98373_R20FE_DEVICE_AUTO_RESTART_CFG */
|
||||
#define MAX98373_CLOCK_MON_SHIFT (0)
|
||||
|
||||
/* MAX98373_R20FF_GLOBAL_SHDN */
|
||||
#define MAX98373_GLOBAL_EN_MASK (0x1 << 0)
|
||||
|
||||
/* MAX98373_R2000_SW_RESET */
|
||||
#define MAX98373_SOFT_RESET (0x1 << 0)
|
||||
|
||||
struct max98373_priv {
|
||||
struct regmap *regmap;
|
||||
unsigned int v_slot;
|
||||
unsigned int i_slot;
|
||||
unsigned int spkfb_slot;
|
||||
bool interleave_mode;
|
||||
unsigned int ch_size;
|
||||
bool tdm_mode;
|
||||
};
|
||||
#endif
|
||||
|
|
@ -490,7 +490,7 @@ static int max98926_probe(struct snd_soc_codec *codec)
|
|||
struct max98926_priv *max98926 = snd_soc_codec_get_drvdata(codec);
|
||||
|
||||
max98926->codec = codec;
|
||||
codec->control_data = max98926->regmap;
|
||||
|
||||
/* Hi-Z all the slots */
|
||||
regmap_write(max98926->regmap, MAX98926_DOUT_HIZ_CFG4, 0xF0);
|
||||
return 0;
|
||||
|
|
|
|||
|
|
@ -36,7 +36,6 @@
|
|||
#include <linux/of_irq.h>
|
||||
#include <linux/mfd/syscon.h>
|
||||
#include <linux/reset-controller.h>
|
||||
#include <linux/clk.h>
|
||||
|
||||
#include "hi6210-i2s.h"
|
||||
|
||||
|
|
|
|||
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