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/* SPDX-License-Identifier: GPL-2.0-only */
#ifndef __DRIVERS_I2C_CS42L42_CHIP_H__
#define __DRIVERS_I2C_CS42L42_CHIP_H__
#include <acpi/acpi_device.h>
enum cs42l42_ts_dbnc_rise {
RISE_DEB_0_MS = 0,
RISE_DEB_125_MS = 1,
RISE_DEB_250_MS = 2,
RISE_DEB_500_MS = 3,
RISE_DEB_750_MS = 4,
RISE_DEB_1000_MS = 5,
RISE_DEB_1250_MS = 6,
RISE_DEB_1500_MS = 7,
};
enum cs42l42_ts_dbnc_fall {
FALL_DEB_0_MS = 0,
FALL_DEB_125_MS = 1,
FALL_DEB_250_MS = 2,
FALL_DEB_500_MS = 3,
FALL_DEB_750_MS = 4,
FALL_DEB_1000_MS = 5,
FALL_DEB_1250_MS = 6,
FALL_DEB_1500_MS = 7,
};
enum cs42l42_hs_bias_ramp_rate {
HSBIAS_RAMP_FAST_RISE_SLOW_FALL = 0,
HSBIAS_RAMP_FAST = 1,
HSBIAS_RAMP_SLOW = 2,
HSBIAS_RAMP_SLOWEST = 3,
};
/*
* Cirrus Logic CS42L42 Audio Codec devicetree bindings
* linux/Documentation/devicetree/bindings/sound/cs42l42.txt
*/
struct drivers_i2c_cs42l42_config {
/* Interrupt configuration */
struct acpi_irq irq;
/* Use GPIO based interrupt instead of PIRQ */
struct acpi_gpio irq_gpio;
/* Use GPIO based reset gpio */
struct acpi_gpio reset_gpio;
/* I2C Bus Frequency in Hertz (default 400kHz) */
unsigned int bus_speed;
/* Define cs42L42 parameters */
/*
* cirrus,ts-inv : Boolean property. For jacks that invert the tip sense
* polarity. Normal jacks will short tip sense pin to HS1 when headphones are
* plugged in and leave tip sense floating when not plugged in. Inverting jacks
* short tip sense when unplugged and float when plugged in.
* false = Non-inverted
* true = Inverted
* Default = Non-inverted
*/
bool ts_inv;
/*
* cirrus,ts-dbnc-rise : Debounce the rising edge of TIP_SENSE_PLUG. With no
* debounce, the tip sense pin might be noisy on a plug event.
* Default = RISE_DEB_1000_MS
*/
enum cs42l42_ts_dbnc_rise ts_dbnc_rise;
/*
* cirrus,ts-dbnc-fall : Debounce the falling edge of TIP_SENSE_UNPLUG.
* With no debounce, the tip sense pin might be noisy on an unplug event.
* Default = FALL_DEB_1000_MS
*/
enum cs42l42_ts_dbnc_fall ts_dbnc_fall;
/*
* cirrus,btn-det-init-dbnce : This sets how long the driver sleeps after
* enabling button detection interrupts. After auto-detection and before
* servicing button interrupts, the HS bias needs time to settle. If you
* don't wait, there is possibility for erroneous button interrupt.
* Value in ms, 0 - 200.
* Default = 100ms
*/
unsigned int btn_det_init_dbnce;
/*
* cirrus,btn-det-event-dbnce : This sets how long the driver delays after
* receiving a button press interrupt. With level detect interrupts, you want
* to wait a small amount of time to make sure the button press is making a
* clean connection with the bias resistors.
* Value in ms, 0 - 20.
* Default = 10ms
*/
unsigned int btn_det_event_dbnce;
/*
* cirrus,bias-lvls : For a level-detect headset button scheme, each button
* will bias the mic pin to a certain voltage. To determine which button was
* pressed, the driver will compare this biased voltage to sequential,
* decreasing voltages and will stop when a comparator is tripped,
* indicating a comparator voltage < bias voltage. This value represents a
* percentage of the internally generated HS bias voltage. For different
* hardware setups, a designer might want to tweak this. This is an array of
* descending values for the comparator voltage.
* Array of 4 values
* Each 0-63
* < x1 x2 x3 x4 >
* Default = < 15 8 4 1>
*/
uint64_t bias_lvls[4];
/* headset bias ramp rate */
enum cs42l42_hs_bias_ramp_rate hs_bias_ramp_rate;
/*
* cirrus,hs-bias-sense-disable: This is boolean property. If present the
* HSBIAS sense is disabled. Configures HSBIAS output current sense through
* the external 2.21-k resistor. HSBIAS_SENSE is hardware feature to reduce
* the potential pop noise during the headset plug out slowly. But on some
* platforms ESD voltage will affect it causing test to fail, especially
* with CTIA headset type. For different hardware setups, a designer might
* want to tweak default behavior.
*/
bool hs_bias_sense_disable;
};
#endif /* __DRIVERS_I2C_CS42L42_CHIP_H__ */
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