| /* 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__ */ |