diff options
Diffstat (limited to 'src/drivers/soundwire/cs42l42/chip.h')
| -rw-r--r-- | src/drivers/soundwire/cs42l42/chip.h | 116 |
1 files changed, 116 insertions, 0 deletions
diff --git a/src/drivers/soundwire/cs42l42/chip.h b/src/drivers/soundwire/cs42l42/chip.h new file mode 100644 index 0000000000..c4fc62c496 --- /dev/null +++ b/src/drivers/soundwire/cs42l42/chip.h @@ -0,0 +1,116 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ + +#ifndef __DRIVERS_SOUNDWIRE_CS42L42_CHIP_H__ +#define __DRIVERS_SOUNDWIRE_CS42L42_CHIP_H__ + +#include <acpi/acpi.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, +}; + +struct drivers_soundwire_cs42l42_config { + char acpi_name[ACPI_NAME_BUFFER_SIZE]; /* Set by the acpi_name ops */ + const char *desc; + + /* 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; + /* 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_SOUNDWIRE_CS42L42_CHIP_H__ */ |