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Cirque Attenuation Setting (#17342)

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Kyle McCreery 2022-06-22 15:59:37 -04:00 committed by GitHub
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2 changed files with 22 additions and 9 deletions
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24
docs/feature_pointing_device.md
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@ -72,7 +72,6 @@ The Analog Joystick is an analog (ADC) driven sensor. There are a variety of jo
|`ANALOG_JOYSTICK_SPEED_MAX` | (Optional) The maximum value used for motion. | `2` |
|`ANALOG_JOYSTICK_CLICK_PIN` | (Optional) The pin wired up to the press switch of the analog stick. | _not defined_ |
### Cirque Trackpad
To use the Cirque Trackpad sensor, add this to your `rules.mk`:
@ -96,21 +95,30 @@ This supports the Cirque Pinnacle 1CA027 Touch Controller, which is used in the
|`CIRQUE_PINNACLE_X_UPPER` | (Optional) The maximum reachable X value on the sensor. | `1919` |
|`CIRQUE_PINNACLE_Y_LOWER` | (Optional) The minimum reachable Y value on the sensor. | `63` |
|`CIRQUE_PINNACLE_Y_UPPER` | (Optional) The maximum reachable Y value on the sensor. | `1471` |
|`CIRQUE_PINNACLE_ATTENUATION` | (Optional) Sets the attenuation of the sensor data. | `ADC_ATTENUATE_4X` |
|`CIRQUE_PINNACLE_TAPPING_TERM` | (Optional) Length of time that a touch can be to be considered a tap. | `TAPPING_TERM`/`200` |
|`CIRQUE_PINNACLE_TOUCH_DEBOUNCE` | (Optional) Length of time that a touch can be to be considered a tap. | `TAPPING_TERM`/`200` |
**`CIRQUE_PINNACLE_ATTENUATION`** is a measure of how much data is suppressed in regards to sensitivity. The higher the attenuation, the less sensitive the touchpad will be.
Default attenuation is set to 4X, although if you are using a thicker overlay (such as the curved overlay) you will want a lower attenuation such as 2X. The possible values are:
* `ADC_ATTENUATE_4X`: Least sensitive
* `ADC_ATTENUATE_3X`
* `ADC_ATTENUATE_2X`
* `ADC_ATTENUATE_1X`: Most sensitive
| I2C Setting | Description | Default |
|--------------------------|---------------------------------------------------------------------------------|---------|
|`CIRQUE_PINNACLE_ADDR` | (Required) Sets the I2C Address for the Cirque Trackpad | `0x2A` |
|`CIRQUE_PINNACLE_TIMEOUT` | (Optional) The timeout for i2c communication with the trackpad in milliseconds. | `20` |
| SPI Setting | Description | Default |
|-------------------------------|------------------------------------------------------------------------|---------------|
|`CIRQUE_PINNACLE_CLOCK_SPEED` | (Optional) Sets the clock speed that the sensor runs at. | `1000000` |
|`CIRQUE_PINNACLE_SPI_LSBFIRST` | (Optional) Sets the Least/Most Significant Byte First setting for SPI. | `false` |
|`CIRQUE_PINNACLE_SPI_MODE` | (Optional) Sets the SPI Mode for the sensor. | `1` |
|`CIRQUE_PINNACLE_SPI_DIVISOR` | (Optional) Sets the SPI Divisor used for SPI communication. | _varies_ |
|`CIRQUE_PINNACLE_SPI_CS_PIN` | (Required) Sets the Cable Select pin connected to the sensor. | _not defined_ |
| SPI Setting | Description | Default |
|-------------------------------|------------------------------------------------------------------------|----------------|
|`CIRQUE_PINNACLE_CLOCK_SPEED` | (Optional) Sets the clock speed that the sensor runs at. | `1000000` |
|`CIRQUE_PINNACLE_SPI_LSBFIRST` | (Optional) Sets the Least/Most Significant Byte First setting for SPI. | `false` |
|`CIRQUE_PINNACLE_SPI_MODE` | (Optional) Sets the SPI Mode for the sensor. | `1` |
|`CIRQUE_PINNACLE_SPI_DIVISOR` | (Optional) Sets the SPI Divisor used for SPI communication. | _varies_ |
|`CIRQUE_PINNACLE_SPI_CS_PIN` | (Required) Sets the Cable Select pin connected to the sensor. | _not defined_ |
Default Scaling/CPI is 1024.

7
drivers/sensors/cirque_pinnacle.c
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@ -38,6 +38,10 @@
#define ADC_ATTENUATE_3X 0x80
#define ADC_ATTENUATE_4X 0xC0
#ifndef CIRQUE_PINNACLE_ATTENUATION
# define CIRQUE_PINNACLE_ATTENUATION ADC_ATTENUATE_4X
#endif
// Register config values for this demo
#define SYSCONFIG_1_VALUE 0x00
#define FEEDCONFIG_1_VALUE 0x03 // 0x03 for absolute mode 0x01 for relative mode
@ -213,7 +217,8 @@ void cirque_pinnacle_init(void) {
// Host sets z-idle packet count to 5 (default is 30)
RAP_Write(Z_IDLE_COUNT, Z_IDLE_COUNT_VALUE);
cirque_pinnacle_set_adc_attenuation(0xFF);
cirque_pinnacle_set_adc_attenuation(CIRQUE_PINNACLE_ATTENUATION);
cirque_pinnacle_tune_edge_sensitivity();
cirque_pinnacle_enable_feed(true);
}