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Cirque trackpad features: circular scroll, inertial cursor (#17482)

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Daniel Kao 2022-07-12 21:17:40 -07:00 committed by GitHub
parent 904ec0ce78
commit 5db705d054
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GPG key ID: 4AEE18F83AFDEB23
11 changed files with 1122 additions and 148 deletions

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@ -149,10 +149,14 @@ ifeq ($(strip $(POINTING_DEVICE_ENABLE)), yes)
else ifeq ($(strip $(POINTING_DEVICE_DRIVER)), cirque_pinnacle_i2c)
OPT_DEFS += -DSTM32_I2C -DHAL_USE_I2C=TRUE
SRC += drivers/sensors/cirque_pinnacle.c
SRC += drivers/sensors/cirque_pinnacle_gestures.c
SRC += $(QUANTUM_DIR)/pointing_device_gestures.c
QUANTUM_LIB_SRC += i2c_master.c
else ifeq ($(strip $(POINTING_DEVICE_DRIVER)), cirque_pinnacle_spi)
OPT_DEFS += -DSTM32_SPI -DHAL_USE_SPI=TRUE
SRC += drivers/sensors/cirque_pinnacle.c
SRC += drivers/sensors/cirque_pinnacle_gestures.c
SRC += $(QUANTUM_DIR)/pointing_device_gestures.c
QUANTUM_LIB_SRC += spi_master.c
else ifeq ($(strip $(POINTING_DEVICE_DRIVER)), pimoroni_trackball)
OPT_DEFS += -DSTM32_SPI -DHAL_USE_I2C=TRUE

View file

@ -89,15 +89,15 @@ POINTING_DEVICE_DRIVER = cirque_pinnacle_spi
This supports the Cirque Pinnacle 1CA027 Touch Controller, which is used in the TM040040, TM035035 and the TM023023 trackpads. These are I2C or SPI compatible, and both configurations are supported.
| Setting | Description | Default |
|-------------------------------- |-----------------------------------------------------------------------|--------------------- |
|`CIRQUE_PINNACLE_X_LOWER` | (Optional) The minimum reachable X value on the sensor. | `127` |
|`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` |
| Setting | Description | Default |
|-------------------------------- |------------------------------------------------------------|--------------------|
|`CIRQUE_PINNACLE_X_LOWER` | (Optional) The minimum reachable X value on the sensor. | `127` |
|`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_DIAMETER_MM` | (Optional) Diameter of the trackpad sensor in millimeters. | `40` |
|`CIRQUE_PINNACLE_ATTENUATION` | (Optional) Sets the attenuation of the sensor data. | `ADC_ATTENUATE_4X` |
|`CIRQUE_PINNACLE_CURVED_OVERLAY` | (Optional) Applies settings tuned for curved overlay. | _not defined_ |
**`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.
@ -120,10 +120,21 @@ Default attenuation is set to 4X, although if you are using a thicker overlay (s
|`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.
Default Scaling is 1024. Actual CPI depends on trackpad diameter.
Also see the `POINTING_DEVICE_TASK_THROTTLE_MS`, which defaults to 10ms when using Cirque Pinnacle, which matches the internal update rate of the position registers (in standard configuration). Advanced configuration for pen/stylus usage might require lower values.
#### Cirque Trackpad gestures
| Gesture Setting | Description | Default |
|-----------------------------------------------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|----------------------|
|`POINTING_DEVICE_GESTURES_CURSOR_GLIDE_ENABLE` | (Optional) Enable inertial cursor. Cursor continues moving after a flick gesture and slows down by kinetic friction | _not defined_ |
|`CIRQUE_PINNACLE_CIRCULAR_SCROLL_ENABLE` | (Optional) Enable circular scroll. Touch originating in outer ring can trigger scroll by moving along the perimeter. Near side triggers vertical scroll and far side triggers horizontal scroll. | _not defined_ |
|`CIRQUE_PINNACLE_TAP_ENABLE` | (Optional) Enable tap to click. This currently only works on the master side. | _not defined_ |
|`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` |
**`POINTING_DEVICE_GESTURES_CURSOR_GLIDE_ENABLE`** is not specific to Cirque trackpad; any pointing device with a lift/contact status can integrate this gesture into its driver. e.g. PMW3360 can use Lift_Stat from Motion register. Note that `POINTING_DEVICE_MOTION_PIN` cannot be used with this feature; continuous polling of `pointing_device_get_report()` is needed to generate glide reports.
### Pimoroni Trackball

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@ -9,47 +9,16 @@
#include "wait.h"
#include "timer.h"
// Registers for RAP
// clang-format off
#define FIRMWARE_ID 0x00
#define FIRMWARE_VERSION_C 0x01
#define STATUS_1 0x02
#define SYSCONFIG_1 0x03
#define FEEDCONFIG_1 0x04
#define FEEDCONFIG_2 0x05
#define CALIBRATION_CONFIG_1 0x07
#define PS2_AU_CONTROL 0x08
#define SAMPLE_RATE 0x09
#define Z_IDLE_COUNT 0x0A
#define Z_SCALER 0x0B
#define SLEEP_INTERVAL 0x0C
#define SLEEP_TIMER 0x0D
#define PACKET_BYTE_0 0x12
#define PACKET_BYTE_1 0x13
#define PACKET_BYTE_2 0x14
#define PACKET_BYTE_3 0x15
#define PACKET_BYTE_4 0x16
#define PACKET_BYTE_5 0x17
#define ERA_VALUE 0x1B
#define ERA_HIGH_BYTE 0x1C
#define ERA_LOW_BYTE 0x1D
#define ERA_CONTROL 0x1E
// ADC-attenuation settings (held in BIT_7 and BIT_6)
// 1X = most sensitive, 4X = least sensitive
#define ADC_ATTENUATE_1X 0x00
#define ADC_ATTENUATE_2X 0x40
#define ADC_ATTENUATE_3X 0x80
#define ADC_ATTENUATE_4X 0xC0
#ifndef CIRQUE_PINNACLE_ATTENUATION
# define CIRQUE_PINNACLE_ATTENUATION ADC_ATTENUATE_4X
# ifdef CIRQUE_PINNACLE_CURVED_OVERLAY
# define CIRQUE_PINNACLE_ATTENUATION EXTREG__TRACK_ADCCONFIG__ADC_ATTENUATE_2X
# else
# define CIRQUE_PINNACLE_ATTENUATION EXTREG__TRACK_ADCCONFIG__ADC_ATTENUATE_4X
# endif
#endif
// clang-format on
bool touchpad_init;
uint16_t scale_data = 1024;
uint16_t scale_data = CIRQUE_PINNACLE_DEFAULT_SCALE;
void cirque_pinnacle_clear_flags(void);
void cirque_pinnacle_enable_feed(bool feedEnable);
@ -106,43 +75,45 @@ void cirque_pinnacle_scale_data(pinnacle_data_t* coordinates, uint16_t xResoluti
// Clears Status1 register flags (SW_CC and SW_DR)
void cirque_pinnacle_clear_flags() {
RAP_Write(STATUS_1, 0x00);
RAP_Write(HOSTREG__STATUS1, HOSTREG__STATUS1_DEFVAL & ~(HOSTREG__STATUS1__COMMAND_COMPLETE | HOSTREG__STATUS1__DATA_READY));
wait_us(50);
}
// Enables/Disables the feed
void cirque_pinnacle_enable_feed(bool feedEnable) {
uint8_t temp;
RAP_ReadBytes(FEEDCONFIG_1, &temp, 1); // Store contents of FeedConfig1 register
uint8_t feedconfig1;
RAP_ReadBytes(HOSTREG__FEEDCONFIG1, &feedconfig1, 1);
if (feedEnable) {
temp |= 0x01; // Set Feed Enable bit
feedconfig1 |= HOSTREG__FEEDCONFIG1__FEED_ENABLE;
} else {
temp &= ~0x01; // Clear Feed Enable bit
feedconfig1 &= ~HOSTREG__FEEDCONFIG1__FEED_ENABLE;
}
RAP_Write(FEEDCONFIG_1, temp);
RAP_Write(HOSTREG__FEEDCONFIG1, feedconfig1);
}
/* ERA (Extended Register Access) Functions */
// Reads <count> bytes from an extended register at <address> (16-bit address),
// stores values in <*data>
void ERA_ReadBytes(uint16_t address, uint8_t* data, uint16_t count) {
uint8_t ERAControlValue = 0xFF;
uint8_t ERAControlValue = 0xFF;
uint16_t timeout_timer;
cirque_pinnacle_enable_feed(false); // Disable feed
RAP_Write(ERA_HIGH_BYTE, (uint8_t)(address >> 8)); // Send upper byte of ERA address
RAP_Write(ERA_LOW_BYTE, (uint8_t)(address & 0x00FF)); // Send lower byte of ERA address
RAP_Write(HOSTREG__EXT_REG_AXS_ADDR_HIGH, (uint8_t)(address >> 8)); // Send upper byte of ERA address
RAP_Write(HOSTREG__EXT_REG_AXS_ADDR_LOW, (uint8_t)(address & 0x00FF)); // Send lower byte of ERA address
for (uint16_t i = 0; i < count; i++) {
RAP_Write(ERA_CONTROL, 0x05); // Signal ERA-read (auto-increment) to Pinnacle
RAP_Write(HOSTREG__EXT_REG_AXS_CTRL, HOSTREG__EREG_AXS__INC_ADDR_READ | HOSTREG__EREG_AXS__READ); // Signal ERA-read (auto-increment) to Pinnacle
// Wait for status register 0x1E to clear
timeout_timer = timer_read();
do {
RAP_ReadBytes(ERA_CONTROL, &ERAControlValue, 1);
} while (ERAControlValue != 0x00);
RAP_ReadBytes(HOSTREG__EXT_REG_AXS_CTRL, &ERAControlValue, 1);
} while ((ERAControlValue != 0x00) && (timer_elapsed(timeout_timer) <= CIRQUE_PINNACLE_TIMEOUT));
RAP_ReadBytes(ERA_VALUE, data + i, 1);
RAP_ReadBytes(HOSTREG__EXT_REG_AXS_VALUE, data + i, 1);
cirque_pinnacle_clear_flags();
}
@ -150,46 +121,80 @@ void ERA_ReadBytes(uint16_t address, uint8_t* data, uint16_t count) {
// Writes a byte, <data>, to an extended register at <address> (16-bit address)
void ERA_WriteByte(uint16_t address, uint8_t data) {
uint8_t ERAControlValue = 0xFF;
uint8_t ERAControlValue = 0xFF;
uint16_t timeout_timer;
cirque_pinnacle_enable_feed(false); // Disable feed
RAP_Write(ERA_VALUE, data); // Send data byte to be written
RAP_Write(HOSTREG__EXT_REG_AXS_VALUE, data); // Send data byte to be written
RAP_Write(ERA_HIGH_BYTE, (uint8_t)(address >> 8)); // Upper byte of ERA address
RAP_Write(ERA_LOW_BYTE, (uint8_t)(address & 0x00FF)); // Lower byte of ERA address
RAP_Write(HOSTREG__EXT_REG_AXS_ADDR_HIGH, (uint8_t)(address >> 8)); // Upper byte of ERA address
RAP_Write(HOSTREG__EXT_REG_AXS_ADDR_LOW, (uint8_t)(address & 0x00FF)); // Lower byte of ERA address
RAP_Write(ERA_CONTROL, 0x02); // Signal an ERA-write to Pinnacle
RAP_Write(HOSTREG__EXT_REG_AXS_CTRL, HOSTREG__EREG_AXS__WRITE); // Signal an ERA-write to Pinnacle
// Wait for status register 0x1E to clear
timeout_timer = timer_read();
do {
RAP_ReadBytes(ERA_CONTROL, &ERAControlValue, 1);
} while (ERAControlValue != 0x00);
RAP_ReadBytes(HOSTREG__EXT_REG_AXS_CTRL, &ERAControlValue, 1);
} while ((ERAControlValue != 0x00) && (timer_elapsed(timeout_timer) <= CIRQUE_PINNACLE_TIMEOUT));
cirque_pinnacle_clear_flags();
}
void cirque_pinnacle_set_adc_attenuation(uint8_t adcGain) {
uint8_t temp = 0x00;
uint8_t adcconfig = 0x00;
ERA_ReadBytes(0x0187, &temp, 1);
temp &= 0x3F; // clear top two bits
temp |= adcGain;
ERA_WriteByte(0x0187, temp);
ERA_ReadBytes(0x0187, &temp, 1);
ERA_ReadBytes(EXTREG__TRACK_ADCCONFIG, &adcconfig, 1);
adcconfig &= EXTREG__TRACK_ADCCONFIG__ADC_ATTENUATE_MASK;
adcconfig |= adcGain;
ERA_WriteByte(EXTREG__TRACK_ADCCONFIG, adcconfig);
ERA_ReadBytes(EXTREG__TRACK_ADCCONFIG, &adcconfig, 1);
}
// Changes thresholds to improve detection of fingers
// Not needed for flat overlay?
void cirque_pinnacle_tune_edge_sensitivity(void) {
uint8_t temp = 0x00;
uint8_t widezmin = 0x00;
ERA_ReadBytes(0x0149, &temp, 1);
ERA_WriteByte(0x0149, 0x04);
ERA_ReadBytes(0x0149, &temp, 1);
ERA_ReadBytes(EXTREG__XAXIS_WIDEZMIN, &widezmin, 1);
ERA_WriteByte(EXTREG__XAXIS_WIDEZMIN, 0x04); // magic number from Cirque sample code
ERA_ReadBytes(EXTREG__XAXIS_WIDEZMIN, &widezmin, 1);
ERA_ReadBytes(0x0168, &temp, 1);
ERA_WriteByte(0x0168, 0x03);
ERA_ReadBytes(0x0168, &temp, 1);
ERA_ReadBytes(EXTREG__YAXIS_WIDEZMIN, &widezmin, 1);
ERA_WriteByte(EXTREG__YAXIS_WIDEZMIN, 0x03); // magic number from Cirque sample code
ERA_ReadBytes(EXTREG__YAXIS_WIDEZMIN, &widezmin, 1);
}
// Perform calibration
void cirque_pinnacle_calibrate(void) {
uint8_t calconfig;
uint16_t timeout_timer;
RAP_ReadBytes(HOSTREG__CALCONFIG1, &calconfig, 1);
calconfig |= HOSTREG__CALCONFIG1__CALIBRATE;
RAP_Write(HOSTREG__CALCONFIG1, calconfig);
// Calibration takes ~100ms according to GT-AN-090624, doubling the timeout just to be safe
timeout_timer = timer_read();
do {
RAP_ReadBytes(HOSTREG__CALCONFIG1, &calconfig, 1);
} while ((calconfig & HOSTREG__CALCONFIG1__CALIBRATE) && (timer_elapsed(timeout_timer) <= 200));
cirque_pinnacle_clear_flags();
}
// Enable/disable cursor smoothing, smoothing is enabled by default
void cirque_pinnacle_cursor_smoothing(bool enable) {
uint8_t feedconfig3;
RAP_ReadBytes(HOSTREG__FEEDCONFIG3, &feedconfig3, 1);
if (enable) {
feedconfig3 &= ~HOSTREG__FEEDCONFIG3__DISABLE_CROSS_RATE_SMOOTHING;
} else {
feedconfig3 |= HOSTREG__FEEDCONFIG3__DISABLE_CROSS_RATE_SMOOTHING;
}
RAP_Write(HOSTREG__FEEDCONFIG3, feedconfig3);
}
/* Pinnacle-based TM040040/TM035035/TM023023 Functions */
@ -205,44 +210,28 @@ void cirque_pinnacle_init(void) {
// Host clears SW_CC flag
cirque_pinnacle_clear_flags();
// SysConfig1 (Low Power Mode)
// Bit 0: Reset, 1=Reset
// Bit 1: Shutdown, 1=Shutdown, 0=Active
// Bit 2: Sleep Enable, 1=low power mode, 0=normal mode
// send a RESET command now, in case QMK had a soft-reset without a power cycle
RAP_Write(SYSCONFIG_1, 0x01);
RAP_Write(HOSTREG__SYSCONFIG1, HOSTREG__SYSCONFIG1__RESET);
wait_ms(30); // Pinnacle needs 10-15ms to boot, so wait long enough before configuring
RAP_Write(SYSCONFIG_1, 0x00);
RAP_Write(HOSTREG__SYSCONFIG1, HOSTREG__SYSCONFIG1_DEFVAL);
wait_us(50);
// FeedConfig2 (Feature flags for Relative Mode Only)
// Bit 0: IntelliMouse Enable, 1=enable, 0=disable
// Bit 1: All Taps Disable, 1=disable, 0=enable
// Bit 2: Secondary Tap Disable, 1=disable, 0=enable
// Bit 3: Scroll Disable, 1=disable, 0=enable
// Bit 4: GlideExtend® Disable, 1=disable, 0=enable
// Bit 5: reserved
// Bit 6: reserved
// Bit 7: Swap X & Y, 1=90° rotation, 0=0° rotation
RAP_Write(FEEDCONFIG_2, 0x00);
RAP_Write(HOSTREG__FEEDCONFIG2, HOSTREG__FEEDCONFIG2_DEFVAL);
// FeedConfig1 (Data Output Flags)
// Bit 0: Feed enable, 1=feed, 0=no feed
// Bit 1: Data mode, 1=absolute, 0=relative
// Bit 2: Filter disable, 1=no filter, 0=filter
// Bit 3: X disable, 1=no X data, 0=X data
// Bit 4: Y disable, 1=no Y data, 0=Y data
// Bit 5: reserved
// Bit 6: X data Invert, 1=X max to 0, 0=0 to Y max
// Bit 7: Y data Invert, 1=Y max to 0, 0=0 to Y max
RAP_Write(FEEDCONFIG_1, CIRQUE_PINNACLE_POSITION_MODE << 1);
RAP_Write(HOSTREG__FEEDCONFIG1, CIRQUE_PINNACLE_POSITION_MODE ? HOSTREG__FEEDCONFIG1__DATA_TYPE__REL0_ABS1 : HOSTREG__FEEDCONFIG1_DEFVAL);
// Host sets z-idle packet count to 5 (default is 0x1F/30)
RAP_Write(Z_IDLE_COUNT, 5);
// Host sets z-idle packet count to 5 (default is 0x1E/30)
RAP_Write(HOSTREG__ZIDLE, 5);
cirque_pinnacle_set_adc_attenuation(CIRQUE_PINNACLE_ATTENUATION);
#ifdef CIRQUE_PINNACLE_CURVED_OVERLAY
cirque_pinnacle_tune_edge_sensitivity();
#endif
// Force a calibration after setting ADC attenuation
cirque_pinnacle_calibrate();
cirque_pinnacle_enable_feed(true);
}
@ -252,15 +241,15 @@ pinnacle_data_t cirque_pinnacle_read_data(void) {
pinnacle_data_t result = {0};
// Check if there is valid data available
RAP_ReadBytes(STATUS_1, &data_ready, 1); // bit2 is Software Data Ready, bit3 is Command Complete, bit0 and bit1 are reserved/unused
if ((data_ready & 0x04) == 0) {
RAP_ReadBytes(HOSTREG__STATUS1, &data_ready, 1);
if ((data_ready & HOSTREG__STATUS1__DATA_READY) == 0) {
// no data available yet
result.valid = false; // be explicit
return result;
}
// Read all data bytes
RAP_ReadBytes(PACKET_BYTE_0, data, 6);
RAP_ReadBytes(HOSTREG__PACKETBYTE_0, data, 6);
// Get ready for the next data sample
cirque_pinnacle_clear_flags();

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@ -2,6 +2,7 @@
#pragma once
#include "cirque_pinnacle_regdefs.h"
#include <stdint.h>
#include <stdbool.h>
@ -15,6 +16,11 @@
# define CIRQUE_PINNACLE_POSITION_MODE CIRQUE_PINNACLE_ABSOLUTE_MODE
#endif
#define CIRQUE_PINNACLE_DEFAULT_SCALE 1024
#ifndef CIRQUE_PINNACLE_DIAMETER_MM
# define CIRQUE_PINNACLE_DIAMETER_MM 40
#endif
// Coordinate scaling values
#ifndef CIRQUE_PINNACLE_X_LOWER
# define CIRQUE_PINNACLE_X_LOWER 127 // min "reachable" X value
@ -41,7 +47,7 @@
# include "i2c_master.h"
// Cirque's 7-bit I2C Slave Address
# ifndef CIRQUE_PINNACLE_ADDR
# define CIRQUE_PINNACLE_ADDR 0x2A
# define CIRQUE_PINNACLE_ADDR I2C_ADDRESS_DEFAULT
# endif
#elif defined(POINTING_DEVICE_DRIVER_cirque_pinnacle_spi)
# include "spi_master.h"
@ -66,6 +72,10 @@
# endif
#endif
#define DIVIDE_UNSIGNED_ROUND(numerator, denominator) (((numerator) + ((denominator) / 2)) / (denominator))
#define CIRQUE_PINNACLE_INCH_TO_PX(inch) (DIVIDE_UNSIGNED_ROUND((inch) * (uint32_t)CIRQUE_PINNACLE_DIAMETER_MM * 10, 254))
#define CIRQUE_PINNACLE_PX_TO_INCH(px) (DIVIDE_UNSIGNED_ROUND((px) * (uint32_t)254, CIRQUE_PINNACLE_DIAMETER_MM * 10))
// Convenient way to store and access measurements
typedef struct {
bool valid; // true if valid data was read, false if no data was ready
@ -84,6 +94,8 @@ typedef struct {
} pinnacle_data_t;
void cirque_pinnacle_init(void);
void cirque_pinnacle_calibrate(void);
void cirque_pinnacle_cursor_smoothing(bool enable);
pinnacle_data_t cirque_pinnacle_read_data(void);
void cirque_pinnacle_scale_data(pinnacle_data_t* coordinates, uint16_t xResolution, uint16_t yResolution);
uint16_t cirque_pinnacle_get_scale(void);

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@ -0,0 +1,226 @@
/* Copyright 2020 Christopher Courtney, aka Drashna Jael're (@drashna) <drashna@live.com>
* Copyright 2022 Daniel Kao <daniel.m.kao@gmail.com>
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include <stdlib.h>
#include <lib/lib8tion/lib8tion.h>
#include "cirque_pinnacle_gestures.h"
#include "pointing_device.h"
#include "timer.h"
#if defined(CIRQUE_PINNACLE_TAP_ENABLE) || defined(CIRQUE_PINNACLE_CIRCULAR_SCROLL_ENABLE)
static cirque_pinnacle_features_t features = {.tap_enable = true, .circular_scroll_enable = true};
#endif
#ifdef CIRQUE_PINNACLE_TAP_ENABLE
static trackpad_tap_context_t tap;
static report_mouse_t trackpad_tap(report_mouse_t mouse_report, pinnacle_data_t touchData) {
if (touchData.touchDown != tap.touchDown) {
tap.touchDown = touchData.touchDown;
if (!touchData.zValue) {
if (timer_elapsed(tap.timer) < CIRQUE_PINNACLE_TAPPING_TERM && tap.timer != 0) {
mouse_report.buttons = pointing_device_handle_buttons(mouse_report.buttons, true, POINTING_DEVICE_BUTTON1);
pointing_device_set_report(mouse_report);
pointing_device_send();
# if TAP_CODE_DELAY > 0
wait_ms(TAP_CODE_DELAY);
# endif
mouse_report.buttons = pointing_device_handle_buttons(mouse_report.buttons, false, POINTING_DEVICE_BUTTON1);
pointing_device_set_report(mouse_report);
pointing_device_send();
}
}
tap.timer = timer_read();
}
if (timer_elapsed(tap.timer) > (CIRQUE_PINNACLE_TOUCH_DEBOUNCE)) {
tap.timer = 0;
}
return mouse_report;
}
void cirque_pinnacle_enable_tap(bool enable) {
features.tap_enable = enable;
}
#endif
#ifdef CIRQUE_PINNACLE_CIRCULAR_SCROLL_ENABLE
/* To set a trackpad exclusively as scroll wheel: outer_ring_pct = 100, trigger_px = 0, trigger_ang = 0 */
static circular_scroll_context_t scroll = {.config = {.outer_ring_pct = 33,
.trigger_px = 16,
.trigger_ang = 9102, /* 50 degrees */
.wheel_clicks = 18}};
static inline uint16_t atan2_16(int32_t dy, int32_t dx) {
if (dy == 0) {
if (dx >= 0) {
return 0;
} else {
return 32768;
}
}
int32_t abs_y = dy > 0 ? dy : -dy;
int16_t a;
if (dx >= 0) {
a = 8192 - (8192 * (dx - abs_y) / (dx + abs_y));
} else {
a = 24576 - (8192 * (dx + abs_y) / (abs_y - dx));
}
if (dy < 0) {
return -a; // negate if in quad III or IV
}
return a;
}
static circular_scroll_t circular_scroll(pinnacle_data_t touchData) {
circular_scroll_t report = {0, 0, false};
int8_t x, y, wheel_clicks;
uint8_t center = 256 / 2, mag;
int16_t ang, dot, det, opposite_side, adjacent_side;
uint16_t scale = cirque_pinnacle_get_scale();
if (touchData.zValue) {
/*
* Place origin at center of trackpad, treat coordinates as vectors.
* Scale to fixed int8_t size; angles are independent of resolution.
*/
if (scale) {
x = (int8_t)((int32_t)touchData.xValue * 256 / scale - center);
y = (int8_t)((int32_t)touchData.yValue * 256 / scale - center);
} else {
x = 0;
y = 0;
}
/* Check if first touch */
if (!scroll.z) {
report.suppress_touch = false;
/* Check if touch falls within outer ring */
mag = sqrt16(x * x + y * y);
if (mag * 100 / center >= 100 - scroll.config.outer_ring_pct) {
scroll.state = SCROLL_DETECTING;
scroll.x = x;
scroll.y = y;
scroll.mag = mag;
/*
* Decide scroll axis:
* Vertical if started from righ half
* Horizontal if started from left half
* Flipped for left-handed
*/
# if defined(POINTING_DEVICE_ROTATION_90)
scroll.axis = y < 0;
# elif defined(POINTING_DEVICE_ROTATION_180)
scroll.axis = x > 0;
# elif defined(POINTING_DEVICE_ROTATION_270)
scroll.axis = y > 0;
# else
scroll.axis = x < 0;
# endif
}
} else if (scroll.state == SCROLL_DETECTING) {
report.suppress_touch = true;
/* Already detecting scroll, check movement from touchdown location */
mag = sqrt16((x - scroll.x) * (x - scroll.x) + (y - scroll.y) * (y - scroll.y));
if (mag >= scroll.config.trigger_px) {
/*
* Find angle of movement.
* 0 degrees here means movement towards center of circle
*/
dot = scroll.x * x + scroll.y * y;
det = scroll.x * y - scroll.y * x;
opposite_side = abs(det); /* Based on scalar rejection */
adjacent_side = abs(scroll.mag * scroll.mag - abs(dot)); /* Based on scalar projection */
ang = (int16_t)atan2_16(opposite_side, adjacent_side);
if (ang < scroll.config.trigger_ang) {
/* Not a scroll, release coordinates */
report.suppress_touch = false;
scroll.state = NOT_SCROLL;
} else {
/* Scroll detected */
scroll.state = SCROLL_VALID;
}
}
}
if (scroll.state == SCROLL_VALID) {
report.suppress_touch = true;
dot = scroll.x * x + scroll.y * y;
det = scroll.x * y - scroll.y * x;
ang = (int16_t)atan2_16(det, dot);
wheel_clicks = ((int32_t)ang * scroll.config.wheel_clicks) / 65536;
if (wheel_clicks >= 1 || wheel_clicks <= -1) {
if (scroll.config.left_handed) {
if (scroll.axis == 0) {
report.h = -wheel_clicks;
} else {
report.v = wheel_clicks;
}
} else {
if (scroll.axis == 0) {
report.v = -wheel_clicks;
} else {
report.h = wheel_clicks;
}
}
scroll.x = x;
scroll.y = y;
}
}
}
scroll.z = touchData.zValue;
if (!scroll.z) scroll.state = SCROLL_UNINITIALIZED;
return report;
}
void cirque_pinnacle_enable_circular_scroll(bool enable) {
features.circular_scroll_enable = enable;
}
void cirque_pinnacle_configure_circular_scroll(uint8_t outer_ring_pct, uint8_t trigger_px, uint16_t trigger_ang, uint8_t wheel_clicks, bool left_handed) {
scroll.config.outer_ring_pct = outer_ring_pct;
scroll.config.trigger_px = trigger_px;
scroll.config.trigger_ang = trigger_ang;
scroll.config.wheel_clicks = wheel_clicks;
scroll.config.left_handed = left_handed;
}
#endif
bool cirque_pinnacle_gestures(report_mouse_t* mouse_report, pinnacle_data_t touchData) {
bool suppress_mouse_update = false;
#ifdef CIRQUE_PINNACLE_CIRCULAR_SCROLL_ENABLE
circular_scroll_t scroll_report;
if (features.circular_scroll_enable) {
scroll_report = circular_scroll(touchData);
mouse_report->v = scroll_report.v;
mouse_report->h = scroll_report.h;
suppress_mouse_update = scroll_report.suppress_touch;
}
#endif
#ifdef CIRQUE_PINNACLE_TAP_ENABLE
if (features.tap_enable) {
*mouse_report = trackpad_tap(*mouse_report, touchData);
}
#endif
return suppress_mouse_update;
}

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/* Copyright 2020 Christopher Courtney, aka Drashna Jael're (@drashna) <drashna@live.com>
* Copyright 2022 Daniel Kao <daniel.m.kao@gmail.com>
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#pragma once
#include "cirque_pinnacle.h"
#include "report.h"
typedef struct {
bool tap_enable;
bool circular_scroll_enable;
} cirque_pinnacle_features_t;
#ifdef CIRQUE_PINNACLE_TAP_ENABLE
# ifndef CIRQUE_PINNACLE_TAPPING_TERM
# include "action.h"
# include "action_tapping.h"
# define CIRQUE_PINNACLE_TAPPING_TERM GET_TAPPING_TERM(KC_BTN1, &(keyrecord_t){})
# endif
# ifndef CIRQUE_PINNACLE_TOUCH_DEBOUNCE
# define CIRQUE_PINNACLE_TOUCH_DEBOUNCE (CIRQUE_PINNACLE_TAPPING_TERM * 8)
# endif
typedef struct {
uint16_t timer;
bool touchDown;
} trackpad_tap_context_t;
/* Enable/disable tap gesture */
void cirque_pinnacle_enable_tap(bool enable);
#endif
#ifdef CIRQUE_PINNACLE_CIRCULAR_SCROLL_ENABLE
typedef enum {
SCROLL_UNINITIALIZED,
SCROLL_DETECTING,
SCROLL_VALID,
NOT_SCROLL,
} circular_scroll_status_t;
typedef struct {
int8_t v;
int8_t h;
bool suppress_touch;
} circular_scroll_t;
typedef struct {
uint8_t outer_ring_pct; /* Width of outer ring, given as a percentage of the radius */
uint8_t trigger_px; /* Amount of movement before triggering scroll validation, in pixels 0~127 */
uint16_t trigger_ang; /* Angle required to validate scroll, in radians where pi = 32768 */
uint8_t wheel_clicks; /* How many clicks to report in a circle */
bool left_handed; /* Whether scrolling should be flipped for left handed use */
} circular_scroll_config_t;
typedef struct {
circular_scroll_config_t config;
circular_scroll_status_t state;
uint8_t mag;
int8_t x;
int8_t y;
uint16_t z;
bool axis;
} circular_scroll_context_t;
/* Enable/disable circular scroll gesture */
void cirque_pinnacle_enable_circular_scroll(bool enable);
/*
* Configure circular scroll gesture.
* Trackpad can be configured to act exclusively as a scroll wheel with outer_ring_pct = 0, trigger_px = 0, trigger_ang = 0.
* @param outer_ring_pct Width of outer ring from which to begin scroll validation, given as a percentage of the radius.
* @param trigger_px Amount of movement before triggering scroll validation. Expressed in pixels, trackpad coordinates are scaled to radius of 128 pixels for circular scroll.
* @param triger_ang Angle required to validate scroll, angle smaller than this will invalidate scroll. In radians where pi = 32768, 0 means movement towards center of trackpad, 16384 means movement perpendicular to center.
* @param wheel_clicks Number of scroll wheel clicks to report in a full rotation.
* @param left_handed Whether scrolling should be flipped for left-handed use.
*/
void cirque_pinnacle_configure_circular_scroll(uint8_t outer_ring_pct, uint8_t trigger_px, uint16_t trigger_ang, uint8_t wheel_clicks, bool left_handed);
#endif
#ifdef POINTING_DEVICE_GESTURES_CURSOR_GLIDE_ENABLE
/* Implementation in pointing_device_drivers.c */
/* Enable/disable inertial cursor */
void cirque_pinnacle_enable_cursor_glide(bool enable);
/*
* Configure inertial cursor.
* @param trigger_px Movement required to trigger cursor glide, set this to non-zero if you have some amount of hover.
*/
void cirque_pinnacle_configure_cursor_glide(float trigger_px);
#endif
/* Process available gestures */
bool cirque_pinnacle_gestures(report_mouse_t* mouse_report, pinnacle_data_t touchData);

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// Copyright (c) 2018 Cirque Corp. Restrictions apply. See: www.cirque.com/sw-license
// based on https://github.com/cirque-corp/Cirque_Pinnacle_1CA027/tree/master/Additional_Examples
// with modifications and changes for QMK
// refer to documentation: Gen2 and Gen3 (Pinnacle ASIC) at https://www.cirque.com/gen2gen3-asic-details
#pragma once
// clang-format off
#define HostReg__0 (0x00)
#define HostReg__1 (0x01)
#define HostReg__2 (0x02)
#define HostReg__3 (0x03)
#define HostReg__4 (0x04)
#define HostReg__5 (0x05)
#define HostReg__6 (0x06)
#define HostReg__7 (0x07)
#define HostReg__8 (0x08)
#define HostReg__9 (0x09)
#define HostReg__10 (0x0A)
#define HostReg__11 (0x0B)
#define HostReg__12 (0x0C)
#define HostReg__13 (0x0D)
#define HostReg__14 (0x0E)
#define HostReg__15 (0x0F)
#define HostReg__16 (0x10)
#define HostReg__17 (0x11)
#define HostReg__18 (0x12)
#define HostReg__19 (0x13)
#define HostReg__20 (0x14)
#define HostReg__21 (0x15)
#define HostReg__22 (0x16)
#define HostReg__23 (0x17)
#define HostReg__24 (0x18)
#define HostReg__25 (0x19)
#define HostReg__26 (0x1A)
#define HostReg__27 (0x1B)
#define HostReg__28 (0x1C)
#define HostReg__29 (0x1D)
#define HostReg__30 (0x1E)
#define HostReg__31 (0x1F)
// ---------------- Register Assignments -------------------------------------
/*--------------------------------------------------------------------------*\
Chip ID / Version
\*--------------------------------------------------------------------------*/
// Chip ID Register
#define HOSTREG__CHIPID HostReg__0
// Chip Version Register
#define HOSTREG__VERSION HostReg__1
/*--------------------------------------------------------------------------*\
Status Register
\*--------------------------------------------------------------------------*/
// Status 1 Register -- MUST BE HOSTREG__2
#define HOSTREG__STATUS1 HostReg__2
# define HOSTREG__STATUS1__DATA_READY 0x04
# define HOSTREG__STATUS1__COMMAND_COMPLETE 0x08
#define HOSTREG__STATUS1_DEFVAL 0x00
/*--------------------------------------------------------------------------*\
System Config Register
\*--------------------------------------------------------------------------*/
#define HOSTREG__SYSCONFIG1 HostReg__3
# define HOSTREG__SYSCONFIG1__RESET 0x01
# define HOSTREG__SYSCONFIG1__STANDBY 0x02
# define HOSTREG__SYSCONFIG1__AUTO_SLEEP 0x04
# define HOSTREG__SYSCONFIG1__TRACK_DISABLE 0x08
# define HOSTREG__SYSCONFIG1__ANYMEAS_ENABLE 0x10
# define HOSTREG__SYSCONFIG1__GPIO_CTRL_ENABLE 0x20
# define HOSTREG__SYSCONFIG1__WAKEUP_TOGGLE 0x40
# define HOSTREG__SYSCONFIG1__FORCE_WAKEUP 0x80
#define HOSTREG__SYSCONFIG1_DEFVAL 0x00
/*--------------------------------------------------------------------------*\
Feed Config Registers
\*--------------------------------------------------------------------------*/
// Feed Config Register1
#define HOSTREG__FEEDCONFIG1 HostReg__4
# define HOSTREG__FEEDCONFIG1__FEED_ENABLE 0x01
# define HOSTREG__FEEDCONFIG1__DATA_TYPE__REL0_ABS1 0x02
# define HOSTREG__FEEDCONFIG1__FILTER_DISABLE 0x04
# define HOSTREG__FEEDCONFIG1__X_AXIS_DISABLE 0x08
# define HOSTREG__FEEDCONFIG1__Y_AXIS_DISABLE 0x10
# define HOSTREG__FEEDCONFIG1__AXIS_FOR_Z__Y0_X1 0x20
# define HOSTREG__FEEDCONFIG1__X_DATA_INVERT 0x40
# define HOSTREG__FEEDCONFIG1__Y_DATA_INVERT 0x80
#define HOSTREG__FEEDCONFIG1_DEFVAL 0x00
// Feed Config Register2
#define HOSTREG__FEEDCONFIG2 HostReg__5
# define HOSTREG__FEEDCONFIG2__INTELLIMOUSE_MODE 0x01
# define HOSTREG__FEEDCONFIG2__ALL_TAP_DISABLE 0x02
# define HOSTREG__FEEDCONFIG2__SECONDARY_TAP_DISABLE 0x04
# define HOSTREG__FEEDCONFIG2__SCROLL_DISABLE 0x08
# define HOSTREG__FEEDCONFIG2__GLIDE_EXTEND_DISABLE 0x10
# define HOSTREG__FEEDCONFIG2__PALM_BEFORE_Z_ENABLE 0x20
# define HOSTREG__FEEDCONFIG2__BUTNS_46_SCROLL_5_MIDDLE 0x40
# define HOSTREG__FEEDCONFIG2__SWAP_XY_RELATIVE 0x80
#define HOSTREG__FEEDCONFIG2_DEFVAL 0x00
// Feed Config Register3
#define HOSTREG__FEEDCONFIG3 HostReg__6
# define HOSTREG__FEEDCONFIG3__BTNS_456_TO_123_IN_REL 0x01
# define HOSTREG__FEEDCONFIG3__DISABLE_CROSS_RATE_SMOOTHING 0x02
# define HOSTREG__FEEDCONFIG3__DISABLE_PALM_NERD_MEAS 0x04
# define HOSTREG__FEEDCONFIG3__DISABLE_NOISE_AVOIDANCE 0x08
# define HOSTREG__FEEDCONFIG3__DISABLE_WRAP_LOCKOUT 0x10
# define HOSTREG__FEEDCONFIG3__DISABLE_DYNAMIC_EMI_ADJUST 0x20
# define HOSTREG__FEEDCONFIG3__DISABLE_HW_EMI_DETECT 0x40
# define HOSTREG__FEEDCONFIG3__DISABLE_SW_EMI_DETECT 0x80
#define HOSTREG__FEEDCONFIG3_DEFVAL 0x00
/*--------------------------------------------------------------------------*\
Calibration Config
\*--------------------------------------------------------------------------*/
#define HOSTREG__CALCONFIG1 HostReg__7
# define HOSTREG__CALCONFIG1__CALIBRATE 0x01
# define HOSTREG__CALCONFIG1__BACKGROUND_COMP_ENABLE 0x02
# define HOSTREG__CALCONFIG1__NERD_COMP_ENABLE 0x04
# define HOSTREG__CALCONFIG1__TRACK_ERROR_COMP_ENABLE 0x08
# define HOSTREG__CALCONFIG1__TAP_COMP_ENABLE 0x10
# define HOSTREG__CALCONFIG1__PALM_ERROR_COMP_ENABLE 0x20
# define HOSTREG__CALCONFIG1__CALIBRATION_MATRIX_DISABLE 0x40
# define HOSTREG__CALCONFIG1__FORCE_PRECALIBRATION_NOISE_CHECK 0x80
#define HOSTREG__CALCONFIG1_DEFVAL (HOSTREG__CALCONFIG1__BACKGROUND_COMP_ENABLE | HOSTREG__CALCONFIG1__NERD_COMP_ENABLE | HOSTREG__CALCONFIG1__TRACK_ERROR_COMP_ENABLE | HOSTREG__CALCONFIG1__TAP_COMP_ENABLE | HOSTREG__CALCONFIG1__PALM_ERROR_COMP_ENABLE)
/*--------------------------------------------------------------------------*\
PS2 Aux Control Register
\*--------------------------------------------------------------------------*/
#define HOSTREG__PS2AUX_CTRL HostReg__8
# define HOSTREG__PS2AUX_CTRL__CMD_PASSTHRU_ENABLE 0x01
# define HOSTREG__PS2AUX_CTRL__SP_EXTENDED_MODE 0x02
# define HOSTREG__PS2AUX_CTRL__GS_DISABLE 0x04
# define HOSTREG__PS2AUX_CTRL__SP_DISABLE 0x08
# define HOSTREG__PS2AUX_CTRL__GS_COORDINATE_DISABLE 0x10
# define HOSTREG__PS2AUX_CTRL__SP_COORDINATE_DISABLE 0x20
# define HOSTREG__PS2AUX_CTRL__DISABLE_AA00_DETECT 0x40
# define HOSTREG__PS2AUX_CTRL__AUX_PRESENT 0x80
#define HOSTREG__PR2AUX_CTRL_DEFVAL 0x00
/*--------------------------------------------------------------------------*\
Sample Rate Value
\*--------------------------------------------------------------------------*/
#define HOSTREG__SAMPLERATE HostReg__9
# define HOSTREG__SAMPLERATE__10_SPS 0x0A
# define HOSTREG__SAMPLERATE__20_SPS 0x14
# define HOSTREG__SAMPLERATE__40_SPS 0x28
# define HOSTREG__SAMPLERATE__60_SPS 0x3C
# define HOSTREG__SAMPLERATE__80_SPS 0x50
# define HOSTREG__SAMPLERATE__100_SPS 0x64
# define HOSTREG__SAMPLERATE__200_SPS 0xC8 // 200sps not supported
// only for ps2 compatibility
// rate set to 100sps
#define HOSTREG__SAMPLERATE_DEFVAL HOSTREG__SAMPLERATE__100_SPS
/*--------------------------------------------------------------------------*\
Z Idle Value
\*--------------------------------------------------------------------------*/
#define HOSTREG__ZIDLE HostReg__10
#define HOSTREG__ZIDLE_DEFVAL 30 // 0x1E
/*--------------------------------------------------------------------------*\
Z Scaler Value
\*--------------------------------------------------------------------------*/
#define HOSTREG__ZSCALER HostReg__11
#define HOSTREG__ZSCALER_DEFVAL 8 // 0x08
/*--------------------------------------------------------------------------*\
Sleep Interval Value
\*--------------------------------------------------------------------------*/
#define HOSTREG__SLEEP_INTERVAL HostReg__12
#define HOSTREG__SLEEP_INTERVAL_DEFVAL 73 // 0x49
/*--------------------------------------------------------------------------*\
Sleep Delay Value
\*--------------------------------------------------------------------------*/
#define HOSTREG__SLEEP_DELAY HostReg__13
#define HOSTREG__SLEEP_DELAY_DEFVAL 39 // 0x27
/*--------------------------------------------------------------------------*\
Dynamic EMI Bad Channel Count Thresholds
\*--------------------------------------------------------------------------*/
#define HOSTREG__DYNAMIC_EMI_ADJUST_THRESHOLD HostReg__14
#define HOSTREG__DYNAMIC_EMI_ADJUST_THRESHOLD_DEFVAL 66 // 0x42
/*--------------------------------------------------------------------------*\
Packet Registers
\*--------------------------------------------------------------------------*/
#define HOSTREG__PACKETBYTE_0 HostReg__18
#define HOSTREG__PACKETBYTE_1 HostReg__19
#define HOSTREG__PACKETBYTE_2 HostReg__20
#define HOSTREG__PACKETBYTE_3 HostReg__21
#define HOSTREG__PACKETBYTE_4 HostReg__22
#define HOSTREG__PACKETBYTE_5 HostReg__23
/*--------------------------------------------------------------------------*\
Port A GPIO Control
\*--------------------------------------------------------------------------*/
#define HOSTREG__PORTA_GPIO_CTRL HostReg__24
#define HOSTREG__PORTA_GPIO_CTRL_DEFVAL 0xFF
/*--------------------------------------------------------------------------*\
Port A GPIO Data
\*--------------------------------------------------------------------------*/
#define HOSTREG__PORTA_GPIO_DATA HostReg__25
#define HOSTREG__PORTA_GPIO_DATA_DEFVAL 0x00
/*--------------------------------------------------------------------------*\
Port B GPIO Control And Data
\*--------------------------------------------------------------------------*/
#define HOSTREG__PORTB_GPIO_CTRL_DATA HostReg__26
# define HOSTREG__PORTB_GPIO_DATA__PB0 0x01
# define HOSTREG__PORTB_GPIO_DATA__PB1 0x02
# define HOSTREG__PORTB_GPIO_DATA__PB2 0x04
# define HOSTREG__PORTB_GPIO_CTRL__PB0 0x08
# define HOSTREG__PORTB_GPIO_CTRL__PB1 0x10
# define HOSTREG__PORTB_GPIO_CTRL__PB2 0x20
# define HOSTREG__PORTB_GPIO_RSVD_0 0x40
# define HOSTREG__PORTB_GPIO_READ1_WRITE0 0x80
#define HOSTREG__PORTB_GPIO_CTRL_DATA_DEFVAL (HOSTREG__PORTB_GPIO_CTRL__PB0 | HOSTREG__PORTB_GPIO_CTRL__PB1 | HOSTREG__PORTB_GPIO_CTRL__PB2)
/*--------------------------------------------------------------------------*\
Extended Register Access
\*--------------------------------------------------------------------------*/
#define HOSTREG__EXT_REG_AXS_VALUE HostReg__27
#define HOSTREG__EXT_REG_AXS_ADDR_HIGH HostReg__28
#define HOSTREG__EXT_REG_AXS_ADDR_LOW HostReg__29
#define HOSTREG__EXT_REG_AXS_CTRL HostReg__30
# define HOSTREG__EREG_AXS__READ 0x01
# define HOSTREG__EREG_AXS__WRITE 0x02
# define HOSTREG__EREG_AXS__INC_ADDR_READ 0x04
# define HOSTREG__EREG_AXS__INC_ADDR_WRITE 0x08
# define HOSTREG__EREG_AXS__RSVD_3 0x10
# define HOSTREG__EREG_AXS__RSVD_2 0x20
# define HOSTREG__EREG_AXS__RSVD_1 0x40
# define HOSTREG__EREG_AXS__RSVD_0 0x80
#define HOSTREG__EXT_REG_AXS_VALUE_DEFVAL 0x00
#define HOSTREG__EXT_REG_AXS_ADDR_HIGH_DEFVAL 0x00
#define HOSTREG__EXT_REG_AXS_ADDR_LOW_DEFVAL 0x00
#define HOSTREG__EXT_REG_AXS_CTRL_DEFVAL 0x00
/*--------------------------------------------------------------------------*\
Product ID
\*--------------------------------------------------------------------------*/
#define HOSTREG__PRODUCT_ID HostReg__31
//Some useful values
#define I2C_ADDRESS_DEFAULT 0x2A
#define FIRMWARE_ID 0x07
#define FIRMWARE_VERSION 0x9D
//Anymeas config options
//First setting is HostReg 5. This sets toggle frequency (EF) and gain.
//Gain is upper two bits (0xC0), frequency is lower 6 bits (0x3F)
#define AnyMeas_AccumBits_ElecFreq HostReg__5
# define ADCCNFG_ELEC_FREQ 0x3F /* Bit 4, 3, 2, 1, 0 */
# define ADCCNFG_EF_0 0x02 // 500,000Hz
# define ADCCNFG_EF_1 0x03 // 444,444Hz
# define ADCCNFG_EF_2 0x04 // 400,000Hz
# define ADCCNFG_EF_3 0x05 // 363,636Hz
# define ADCCNFG_EF_4 0x06 // 333,333Hz
# define ADCCNFG_EF_5 0x07 // 307,692Hz
# define ADCCNFG_EF_6 0x09 // 267,000Hz
# define ADCCNFG_EF_7 0x0B // 235,000Hz
# define ADCCNFG_ACCUMBITSSELECT 0xC0 /* Bit 7, 6 */
# define ADCCNFG_ACCBITS_17_14_0 0x00 //This is about 2x gain
# define ADCCNFG_ACCBITS_17_15_1 0x40 //This is about 1.6x gain
# define ADCCNFG_ACCBITS_17_2__80 0x80 //This is about 1.3x gain
# define ADCCNFG_ACCBITS_17_2__C0 0xC0 //This is lowest gain
//Note, all frequencies above are based on default 500ns aperture. If aperture is shorter the frequencies will be faster and if aperture is longer the frequencies will be slower.
//Next is HostReg 6. This sets the sample length. There are four possible settings to bit length. All other settings are not normally used and should be a 0.
#define AnyMeas_BitLength HostReg__6
# define ADCCTRL_BIT_LENGTH 0x03 /* Bit 1, 0 */
# define ADCCTRL_SAMPLES_32 0x00 //Note: this does not work.
# define ADCCTRL_SAMPLES_128 0x01
# define ADCCTRL_SAMPLES_256 0x02
# define ADCCTRL_SAMPLES_512 0x03
# define ADCCTRL_ENABLE 0x20 /* Bit 5 */
# define ADCCTRL_INT_FLAG 0x40 /* Bit 6 */
# define ADCCTRL_START_BUSY 0x80 /* Bit 7 */
//The smaller the sample length the faster the measurement but the lower the SNR. For high SNR requirements 512 sample length is recommended. Alternatively, multiple 128 or 256 length measurements could be averaged.
//Next is HostReg 7. This sets the sense mux. Pinnacle has 2 sense lines, Sense N and Sense P1. There is also a Sense P2 but it is not bonded out, it is only internal.
//Signal on Sense N will be inverted from signal on Sense P1. Other than sign inversion, signal strength should be the same.
#define AnyMeas_ADC_MuxControl HostReg__7
# define ADCMUXCTRL_SENSEP1GATE 0x01 //Enables Sense P1. Can be combined with Sense N input or exclusivly Sense P1 alone.
# define ADCMUXCTRL_SENSEP2GATE 0x02 //Not used.
# define ADCMUXCTRL_SENSENGATE 0x04 //Enables Sense N. Can be combined with Sense P inputs or exclusivly Sense N alone.
# define ADCMUXCTRL_REF0GATE 0x08 //This enables the RefCap0. This is a capacitor inside the chip that is roughly 0.25pF. It is also controlled with the toggle and polarity bits so those bits must be set properly as well in order to use it.
# define ADCMUXCTRL_REF1GATE 0x10 //This enables the RefCap1. This is a capacitor inside the chip that is roughly 0.5pF. It is also controlled with the toggle and polarity bits so those bits must be set properly as well in order to use it.
# define ADCMUXCTRL_OSCMEASEN 0x80 //this is a test mode for measuring the internal oscillator. It is for IC test only.
//Next is HostReg 8. This contains various ADC config settings that are not likely to be used.
#define AnyMeas_ADC_Config2 HostReg__8
# define ADCCNFG2_ADC_CLK_SELECT 0x01 /* Bit 0 */ //If 0 use the standard 8Mhz clock. If 1 use a divide by 2, 4Mhz clock. Only used if extra slow toggle frequencies are required.
# define ADCCNFG2_EMI_FLAG 0x02 /* Bit 1 */ //EMI flag threshold only used with internal FW. Not valid in anymeas mode.
# define ADCCNFG2_EMI_FLAG_THRESHOLD_0 0x04 /* Bit 2 */ //EMI flag threshold only used with internal FW. Not valid in anymeas mode.
# define ADCCNFG2_EMI_FLAG_THRESHOLD_1 0x08 /* Bit 3 */ //EMI flag threshold only used with internal FW. Not valid in anymeas mode.
# define ADCCNFG2_DSX2_EXTEND 0x10 /* Bit 4 */ //extend one signal on the receive. Could also be helpful in situations where sensor cap is extremely high.
# define ADCCNFG2_ETOGGLE_DELAY 0x20 /* Bit 5 */ //delay a bit before toggling electrodes. Could be helpful in situations where sensor cap is extremely high.
//Next is HostReg 9. This sets the aperture length. Bottom 4 bits set the aperture width
#define AnyMeas_ADC_AWidth HostReg__9
# define ADCAWIDTH_AWIDTHMASK 0x0F
# define ADCAWIDTH_APERTURE_OPEN 0x00 //does not work
# define ADCAWIDTH_APERTURE_125NS 0x01 //does not work
# define ADCAWIDTH_APERTURE_250NS 0x02
# define ADCAWIDTH_APERTURE_375NS 0x03
# define ADCAWIDTH_APERTURE_500NS 0x04
# define ADCAWIDTH_APERTURE_625NS 0x05
# define ADCAWIDTH_APERTURE_750NS 0x06
# define ADCAWIDTH_APERTURE_875NS 0x07
# define ADCAWIDTH_APERTURE_1000NS 0x08
# define ADCAWIDTH_APERTURE_1125NS 0x09
# define ADCAWIDTH_APERTURE_1250NS 0x0A
# define ADCAWIDTH_APERTURE_1375NS 0x0B
# define ADCAWIDTH_APERTURE_1500NS 0x0C
# define ADCAWIDTH_APERTURE_1625NS 0x0D
# define ADCAWIDTH_APERTURE_1750NS 0x0E
# define ADCAWIDTH_APERTURE_1875NS 0x0F
# define ADCAWIDTH_AWIDTHPLUSHALF 0x10
# define ADCAWIDTH_AOPEN 0x20
# define ADCAWIDTH_W2WAIT 0x40
//next two registers give the high and low bytes to the 16 bit address where Pinnacle will pull the measurement data. Normally these addresses are within the base 32 registers.
#define AnyMeas_pADCMeasInfoStart_High_Byte HostReg__10
#define AnyMeas_pADCMeasInfoStart_Low_Byte HostReg__11
//Next is the measurement index, this sets the measurement state machine to the start and should be a 0 at start.
#define AnyMeas_MeasIndex HostReg__12
# define ANYMEASSTATE_RESET_START 0x00
# define ANYMEASSTATE_START_MEASUREMENT 0x01
# define ANYMEASSTATE_WAIT_FOR_MEASUREMENT_AND_HOST 0x02
//next is the state itself of the measurement, should always be 0.
#define AnyMeas_State HostReg__13
//next is the number of measurements. Use 0x80 to repeat the single measurement or repeat a number of measurements.
//0x40 will turn the ADC off after measurements. This will result in longer startup time for a subsequent measurement, but lower idle power draw.
#define AnyMeas_Control_NumMeas HostReg__14
# define ANYMEAS_CONTROL__NUM_MEAS_MASK 0x3F
# define ANYMEAS_CONTROL__ADC_POST_MEAS_PWR 0x40
# define ANYMEAS_CONTROL__REPEAT 0x80
//These are not used
#define AnyMeas_pADCMeasInfo_High_Byte HostReg__15
#define AnyMeas_pADCMeasInfo_Low_Byte HostReg__16
//16 bit result of measurement will be found in these two registers.
#define AnyMeas_Result_High_Byte HostReg__17
#define AnyMeas_Result_Low_Byte HostReg__18
// ---------------- Extended Register Assignments ----------------------------
/*--------------------------------------------------------------------------*\
ADC Mux Control
\*--------------------------------------------------------------------------*/
#define EXTREG__ADCMUX_CTRL 0x00EB
# define EXTREG__ADCMUX_CTRL__SNSP_ENABLE 0x01
# define EXTREG__ADCMUX_CTRL__SNSN_ENABLE 0x04
/*--------------------------------------------------------------------------*\
Timer Reload Registers
\*--------------------------------------------------------------------------*/
#define EXTREG__PACKET_TIMER_RELOAD 0x019F
#define EXTREG__TRACK_TIMER_RELOAD 0x019E
// These two registers should have matching content.
# define EXTREG__TIMER_RELOAD__300_SPS 0x06
# define EXTREG__TIMER_RELOAD__200_SPS 0x09
# define EXTREG__TIMER_RELOAD__100_SPS 0x13
/*--------------------------------------------------------------------------*\
Track ADC Config
\*--------------------------------------------------------------------------*/
#define EXTREG__TRACK_ADCCONFIG 0x0187
// ADC-attenuation settings (held in BIT_7 and BIT_6)
// 1X = most sensitive, 4X = least sensitive
# define EXTREG__TRACK_ADCCONFIG__ADC_ATTENUATE_MASK 0x3F
# define EXTREG__TRACK_ADCCONFIG__ADC_ATTENUATE_1X 0x00
# define EXTREG__TRACK_ADCCONFIG__ADC_ATTENUATE_2X 0x40
# define EXTREG__TRACK_ADCCONFIG__ADC_ATTENUATE_3X 0x80
# define EXTREG__TRACK_ADCCONFIG__ADC_ATTENUATE_4X 0xC0
#define EXTREG__TRACK_ADCCONFIG_DEFVAL 0x4E
/*--------------------------------------------------------------------------*\
Tune Edge Sensitivity
\*--------------------------------------------------------------------------*/
// These registers are not detailed in any publically available documentation
// Names inferred from debug prints in https://github.com/cirque-corp/Cirque_Pinnacle_1CA027/blob/master/Circular_Trackpad
#define EXTREG__XAXIS_WIDEZMIN 0x0149
#define EXTREG__YAXIS_WIDEZMIN 0x0168
#define EXTREG__XAXIS_WIDEZMIN_DEFVAL 0x06
#define EXTREG__YAXIS_WIDEZMIN_DEFVAL 0x05
// clang-format on

View file

@ -31,6 +31,8 @@ along with this program. If not, see <http://www.gnu.org/licenses/>.
# include "drivers/sensors/analog_joystick.h"
#elif defined(POINTING_DEVICE_DRIVER_cirque_pinnacle_i2c) || defined(POINTING_DEVICE_DRIVER_cirque_pinnacle_spi)
# include "drivers/sensors/cirque_pinnacle.h"
# include "drivers/sensors/cirque_pinnacle_gestures.h"
# include "pointing_device_gestures.h"
#elif defined(POINTING_DEVICE_DRIVER_pimoroni_trackball)
# include "i2c_master.h"
# include "drivers/sensors/pimoroni_trackball.h"

View file

@ -97,27 +97,48 @@ const pointing_device_driver_t pointing_device_driver = {
// clang-format on
#elif defined(POINTING_DEVICE_DRIVER_cirque_pinnacle_i2c) || defined(POINTING_DEVICE_DRIVER_cirque_pinnacle_spi)
# ifndef CIRQUE_PINNACLE_TAPPING_TERM
# include "action.h"
# include "action_tapping.h"
# define CIRQUE_PINNACLE_TAPPING_TERM GET_TAPPING_TERM(KC_BTN1, &(keyrecord_t){})
# endif
# ifndef CIRQUE_PINNACLE_TOUCH_DEBOUNCE
# define CIRQUE_PINNACLE_TOUCH_DEBOUNCE (CIRQUE_PINNACLE_TAPPING_TERM * 8)
# ifdef POINTING_DEVICE_GESTURES_CURSOR_GLIDE_ENABLE
static bool cursor_glide_enable = true;
static cursor_glide_context_t glide = {.config = {
.coef = 102, /* Good default friction coef */
.interval = 10, /* 100sps */
.trigger_px = 10, /* Default threshold in case of hover, set to 0 if you'd like */
}};
void cirque_pinnacle_enable_cursor_glide(bool enable) {
cursor_glide_enable = enable;
}
void cirque_pinnacle_configure_cursor_glide(float trigger_px) {
glide.config.trigger_px = trigger_px;
}
# endif
report_mouse_t cirque_pinnacle_get_report(report_mouse_t mouse_report) {
pinnacle_data_t touchData = cirque_pinnacle_read_data();
mouse_xy_report_t report_x = 0, report_y = 0;
static mouse_xy_report_t x = 0, y = 0;
static uint16_t mouse_timer = 0;
static bool is_z_down = false;
# ifdef POINTING_DEVICE_GESTURES_CURSOR_GLIDE_ENABLE
cursor_glide_t glide_report = {0};
if (cursor_glide_enable) {
glide_report = cursor_glide_check(&glide);
}
# endif
# if !CIRQUE_PINNACLE_POSITION_MODE
# error Cirque Pinnacle with relative mode not implemented yet.
# endif
if (!touchData.valid) {
# ifdef POINTING_DEVICE_GESTURES_CURSOR_GLIDE_ENABLE
if (cursor_glide_enable && glide_report.valid) {
report_x = glide_report.dx;
report_y = glide_report.dy;
goto mouse_report_update;
}
# endif
return mouse_report;
}
@ -130,45 +151,51 @@ report_mouse_t cirque_pinnacle_get_report(report_mouse_t mouse_report) {
// Scale coordinates to arbitrary X, Y resolution
cirque_pinnacle_scale_data(&touchData, cirque_pinnacle_get_scale(), cirque_pinnacle_get_scale());
if (x && y && touchData.xValue && touchData.yValue) {
report_x = (mouse_xy_report_t)(touchData.xValue - x);
report_y = (mouse_xy_report_t)(touchData.yValue - y);
if (!cirque_pinnacle_gestures(&mouse_report, touchData)) {
if (x && y && touchData.xValue && touchData.yValue) {
report_x = (mouse_xy_report_t)(touchData.xValue - x);
report_y = (mouse_xy_report_t)(touchData.yValue - y);
}
x = touchData.xValue;
y = touchData.yValue;
# ifdef POINTING_DEVICE_GESTURES_CURSOR_GLIDE_ENABLE
if (cursor_glide_enable) {
if (touchData.touchDown) {
cursor_glide_update(&glide, report_x, report_y, touchData.zValue);
} else if (!glide_report.valid) {
glide_report = cursor_glide_start(&glide);
if (glide_report.valid) {
report_x = glide_report.dx;
report_y = glide_report.dy;
}
}
}
# endif
}
x = touchData.xValue;
y = touchData.yValue;
# ifdef POINTING_DEVICE_GESTURES_CURSOR_GLIDE_ENABLE
mouse_report_update:
# endif
mouse_report.x = report_x;
mouse_report.y = report_y;
if (touchData.touchDown != is_z_down) {
is_z_down = touchData.touchDown;
if (!touchData.zValue) {
if (timer_elapsed(mouse_timer) < CIRQUE_PINNACLE_TAPPING_TERM && mouse_timer != 0) {
mouse_report.buttons = pointing_device_handle_buttons(mouse_report.buttons, true, POINTING_DEVICE_BUTTON1);
pointing_device_set_report(mouse_report);
pointing_device_send();
# if TAP_CODE_DELAY > 0
wait_ms(TAP_CODE_DELAY);
# endif
mouse_report.buttons = pointing_device_handle_buttons(mouse_report.buttons, false, POINTING_DEVICE_BUTTON1);
pointing_device_set_report(mouse_report);
pointing_device_send();
}
}
mouse_timer = timer_read();
}
if (timer_elapsed(mouse_timer) > (CIRQUE_PINNACLE_TOUCH_DEBOUNCE)) {
mouse_timer = 0;
}
return mouse_report;
}
uint16_t cirque_pinnacle_get_cpi(void) {
return CIRQUE_PINNACLE_PX_TO_INCH(cirque_pinnacle_get_scale());
}
void cirque_pinnacle_set_cpi(uint16_t cpi) {
cirque_pinnacle_set_scale(CIRQUE_PINNACLE_INCH_TO_PX(cpi));
}
// clang-format off
const pointing_device_driver_t pointing_device_driver = {
.init = cirque_pinnacle_init,
.get_report = cirque_pinnacle_get_report,
.set_cpi = cirque_pinnacle_set_scale,
.get_cpi = cirque_pinnacle_get_scale
.set_cpi = cirque_pinnacle_set_cpi,
.get_cpi = cirque_pinnacle_get_cpi
};
// clang-format on

View file

@ -0,0 +1,133 @@
/* Copyright 2022 Daniel Kao <daniel.m.kao@gmail.com>
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include <string.h>
#include "pointing_device_gestures.h"
#include "timer.h"
#ifdef POINTING_DEVICE_GESTURES_CURSOR_GLIDE_ENABLE
# ifdef POINTING_DEVICE_MOTION_PIN
# error POINTING_DEVICE_MOTION_PIN not supported when using inertial cursor. Need repeated calls to get_report() to generate glide events.
# endif
static void cursor_glide_stop(cursor_glide_context_t* glide) {
memset(&glide->status, 0, sizeof(glide->status));
}
static cursor_glide_t cursor_glide(cursor_glide_context_t* glide) {
cursor_glide_status_t* status = &glide->status;
cursor_glide_t report;
int32_t p;
int32_t x, y;
if (status->v0 == 0) {
report.dx = 0;
report.dy = 0;
report.valid = false;
cursor_glide_stop(glide);
goto exit;
}
status->counter++;
/* Calculate current 1D position */
p = status->v0 * status->counter - (int32_t)glide->config.coef * status->counter * status->counter / 2;
/*
* Translate to x & y axes
* Done this way instead of applying friction to each axis separately, so we don't end up with the shorter axis stuck at 0 towards the end of diagonal movements.
*/
x = (int32_t)(p * status->dx0 / status->v0);
y = (int32_t)(p * status->dy0 / status->v0);
report.dx = (mouse_xy_report_t)(x - status->x);
report.dy = (mouse_xy_report_t)(y - status->y);
report.valid = true;
if (report.dx <= 1 && report.dx >= -1 && report.dy <= 1 && report.dy >= -1) {
/* Stop gliding once speed is low enough */
cursor_glide_stop(glide);
goto exit;
}
status->x = x;
status->y = y;
status->timer = timer_read();
exit:
return report;
}
cursor_glide_t cursor_glide_check(cursor_glide_context_t* glide) {
cursor_glide_t invalid_report = {0, 0, false};
cursor_glide_status_t* status = &glide->status;
if (status->z || (status->dx0 == 0 && status->dy0 == 0) || timer_elapsed(status->timer) < glide->config.interval) {
return invalid_report;
} else {
return cursor_glide(glide);
}
}
static inline uint16_t sqrt32(uint32_t x) {
uint32_t l, m, h;
if (x == 0) {
return 0;
} else if (x > (UINT16_MAX >> 2)) {
/* Safe upper bound to avoid integer overflow with m * m */
h = UINT16_MAX;
} else {
/* Upper bound based on closest log2 */
h = (1 << (((__builtin_clzl(1) - __builtin_clzl(x) + 1) + 1) >> 1));
}
/* Lower bound based on closest log2 */
l = (1 << ((__builtin_clzl(1) - __builtin_clzl(x)) >> 1));
/* Binary search to find integer square root */
while (l != h - 1) {
m = (l + h) / 2;
if (m * m <= x) {
l = m;
} else {
h = m;
}
}
return l;
}
cursor_glide_t cursor_glide_start(cursor_glide_context_t* glide) {
cursor_glide_t invalid_report = {0, 0, false};
cursor_glide_status_t* status = &glide->status;
status->timer = timer_read();
status->counter = 0;
status->v0 = (status->dx0 == 0 && status->dy0 == 0) ? 0.0 : sqrt32(((int32_t)status->dx0 * 256 * status->dx0 * 256) + ((int32_t)status->dy0 * 256 * status->dy0 * 256)); // skip trigonometry if not needed, calculate distance in Q8
status->x = 0;
status->y = 0;
status->z = 0;
if (status->v0 < ((uint32_t)glide->config.trigger_px * 256)) { /* Q8 comparison */
/* Not enough velocity to be worth gliding, abort */
cursor_glide_stop(glide);
return invalid_report;
}
return cursor_glide(glide);
}
void cursor_glide_update(cursor_glide_context_t* glide, mouse_xy_report_t dx, mouse_xy_report_t dy, uint16_t z) {
cursor_glide_status_t* status = &glide->status;
status->dx0 = dx;
status->dy0 = dy;
status->z = z;
}
#endif

View file

@ -0,0 +1,58 @@
/* Copyright 2022 Daniel Kao <daniel.m.kao@gmail.com>
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#pragma once
#include <stdint.h>
#include "report.h"
#ifdef POINTING_DEVICE_GESTURES_CURSOR_GLIDE_ENABLE
typedef struct {
mouse_xy_report_t dx;
mouse_xy_report_t dy;
bool valid;
} cursor_glide_t;
typedef struct {
uint16_t trigger_px; /* Pixels of movement needed to trigger cursor glide */
uint16_t coef; /* Coefficient of friction */
uint16_t interval; /* Glide report interval, in milliseconds */
} cursor_glide_config_t;
typedef struct {
int32_t v0;
int32_t x;
int32_t y;
uint16_t z;
uint16_t timer;
uint16_t counter;
mouse_xy_report_t dx0;
mouse_xy_report_t dy0;
} cursor_glide_status_t;
typedef struct {
cursor_glide_config_t config;
cursor_glide_status_t status;
} cursor_glide_context_t;
/* Check glide report conditions, calculates glide coordinates */
cursor_glide_t cursor_glide_check(cursor_glide_context_t* glide);
/* Start glide reporting, gives first set of glide coordinates */
cursor_glide_t cursor_glide_start(cursor_glide_context_t* glide);
/* Update glide engine on the latest cursor movement, cursor glide is based on the final movement */
void cursor_glide_update(cursor_glide_context_t* glide, mouse_xy_report_t dx, mouse_xy_report_t dy, uint16_t z);
#endif