src/drivers/i2c/sx9310/chip.h

   1 /* SPDX-License-Identifier: GPL-2.0-only */
   2
   3 #ifndef __DRIVERS_I2C_SX9310_CHIP_H__
   4 #define __DRIVERS_I2C_SX9310_CHIP_H__
   5
   6 #include <acpi/acpi_device.h>
   7 #include <device/i2c_simple.h>
   8
   9 #define MAX_COMBINED_SENSORS_ENTRIES 4
  10
  11 enum sx9310_resolution {
  12         SX9310_COARSEST = 1,
  13         SX9310_VERY_COARSE,
  14         SX9310_COARSE,
  15         SX9310_MEDIUM_COARSE,
  16         SX9310_MEDIUM,
  17         SX9310_FINE,
  18         SX9310_VERY_FINE,
  19         SX9310_FINEST,
  20 };
  21
  22 struct drivers_i2c_sx9310_config {
  23         /* Device Description */
  24         const char *desc;
  25
  26         /* ACPI _UID */
  27         unsigned int uid;
  28
  29         /* Bus speed in Hz, default is I2C_SPEED_FAST */
  30         enum i2c_speed speed;
  31
  32         /* Use GPIO-based interrupt instead of IO-APIC */
  33         struct acpi_gpio irq_gpio;
  34
  35         /* IO-APIC interrupt */
  36         struct acpi_irq irq;
  37
  38         /*
  39          * Registers definition in the kernel source tree at:
  40          * Documentation/devicetree/bindings/iio/proximity/semtech,sx9310.yaml
  41          */
  42
  43         /* When true, cs0 is the ground. 0 [default] is false. */
  44         uint32_t cs0_ground;
  45
  46         /* Sensor used for start-up proximity detection: Default 0. */
  47         uint32_t startup_sensor;
  48
  49         /* Raw Proximity filter strength: When not set, disabled. */
  50         uint32_t proxraw_strength;
  51
  52         /* Average Proximity filter strength: When not set, disabled. */
  53         uint32_t avg_pos_strength;
  54
  55         /*
  56          * List of which sensors are combined and represented by CS3.
  57          * Could be standalone (3) or combination of 0, 1, 2, 3.
  58          * Driver default: CS0 + CS1.
  59          */
  60         uint32_t combined_sensors_count;
  61         uint32_t combined_sensors[MAX_COMBINED_SENSORS_ENTRIES];
  62
  63         /* Capacitance measure resolution. Driver default: "finest". */
  64         enum sx9310_resolution resolution;
  65 };
  66
  67 #endif /* __DRIVERS_I2C_SX9310_CHIP_H__ */