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improvements for Cirque Pinnacle trackpads (#17091)

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Thomas Kriechbaumer 2022-06-25 22:22:28 +02:00 • committed by GitHub
parent 60cbb25148
commit 01bc974365
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6 changed files with 154 additions and 68 deletions
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98
drivers/sensors/cirque_pinnacle.c
View file

@ -1,8 +1,13 @@
// 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/Circular_Trackpad
// with modifications and changes for QMK
// refer to documentation: Gen2 and Gen3 (Pinnacle ASIC) at https://www.cirque.com/documentation
#include "cirque_pinnacle.h"
#include "print.h"
#include "debug.h"
#include "wait.h"
#include "timer.h"
// Registers for RAP
// clang-format off
@ -41,12 +46,6 @@
#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
#define FEEDCONFIG_2_VALUE 0x1C // 0x1F for normal functionality 0x1E for intellimouse disabled
#define Z_IDLE_COUNT_VALUE 0x05
// clang-format on
bool touchpad_init;
@ -114,16 +113,14 @@ void cirque_pinnacle_clear_flags() {
// 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
if (feedEnable) {
temp |= 0x01; // Set Feed Enable bit
RAP_Write(0x04, temp);
} else {
temp &= ~0x01; // Clear Feed Enable bit
RAP_Write(0x04, temp);
}
RAP_Write(FEEDCONFIG_1, temp);
}
/* ERA (Extended Register Access) Functions */
@ -195,7 +192,7 @@ void cirque_pinnacle_tune_edge_sensitivity(void) {
ERA_ReadBytes(0x0168, &temp, 1);
}
/* Pinnacle-based TM040040 Functions */
/* Pinnacle-based TM040040/TM035035/TM023023 Functions */
void cirque_pinnacle_init(void) {
#if defined(POINTING_DEVICE_DRIVER_cirque_pinnacle_spi)
spi_init();
@ -204,18 +201,44 @@ void cirque_pinnacle_init(void) {
#endif
touchpad_init = true;
// Host clears SW_CC flag
cirque_pinnacle_clear_flags();
// Host configures bits of registers 0x03 and 0x05
RAP_Write(SYSCONFIG_1, SYSCONFIG_1_VALUE);
RAP_Write(FEEDCONFIG_2, FEEDCONFIG_2_VALUE);
// 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);
wait_ms(30); // Pinnacle needs 10-15ms to boot, so wait long enough before configuring
RAP_Write(SYSCONFIG_1, 0x00);
wait_us(50);
// Host enables preferred output mode (absolute)
RAP_Write(FEEDCONFIG_1, FEEDCONFIG_1_VALUE);
// 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);
// Host sets z-idle packet count to 5 (default is 30)
RAP_Write(Z_IDLE_COUNT, Z_IDLE_COUNT_VALUE);
// 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);
// Host sets z-idle packet count to 5 (default is 0x1F/30)
RAP_Write(Z_IDLE_COUNT, 5);
cirque_pinnacle_set_adc_attenuation(CIRQUE_PINNACLE_ATTENUATION);
@ -223,21 +246,42 @@ void cirque_pinnacle_init(void) {
cirque_pinnacle_enable_feed(true);
}
// Reads XYZ data from Pinnacle registers 0x14 through 0x17
// Stores result in pinnacle_data_t struct with xValue, yValue, and zValue members
pinnacle_data_t cirque_pinnacle_read_data(void) {
uint8_t data[6] = {0};
pinnacle_data_t result = {0};
uint8_t data_ready = 0;
uint8_t data[6] = {0};
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) {
// no data available yet
result.valid = false; // be explicit
return result;
}
// Read all data bytes
RAP_ReadBytes(PACKET_BYTE_0, data, 6);
// Get ready for the next data sample
cirque_pinnacle_clear_flags();
result.buttonFlags = data[0] & 0x3F;
result.xValue = data[2] | ((data[4] & 0x0F) << 8);
result.yValue = data[3] | ((data[4] & 0xF0) << 4);
result.zValue = data[5] & 0x3F;
result.touchDown = (result.xValue != 0 || result.yValue != 0);
#if CIRQUE_PINNACLE_POSITION_MODE
// Decode data for absolute mode
// Register 0x13 is unused in this mode (palm detection area)
result.buttonFlags = data[0] & 0x3F; // bit0 to bit5 are switch 0-5, only hardware button presses (from input pin on the Pinnacle chip)
result.xValue = data[2] | ((data[4] & 0x0F) << 8); // merge high and low bits for X
result.yValue = data[3] | ((data[4] & 0xF0) << 4); // merge high and low bits for Y
result.zValue = data[5] & 0x3F; // Z is only lower 6 bits, upper 2 bits are reserved/unused
result.touchDown = (result.xValue != 0 || result.yValue != 0); // (0,0) is a "magic coordinate" to indicate "finger touched down"
#else
// Decode data for relative mode
// Registers 0x16 and 0x17 are unused in this mode
result.buttons = data[0] & 0x07; // bit0 = primary button, bit1 = secondary button, bit2 = auxilary button, if Taps enabled then also software-recognized taps are reported
result.xDelta = data[1];
result.yDelta = data[2];
result.wheelCount = data[3];
#endif
result.valid = true;
return result;
}

50
drivers/sensors/cirque_pinnacle.h
View file

@ -5,23 +5,14 @@
#include <stdint.h>
#include <stdbool.h>
// Convenient way to store and access measurements
typedef struct {
uint16_t xValue;
uint16_t yValue;
uint16_t zValue;
uint8_t buttonFlags;
bool touchDown;
} pinnacle_data_t;
void cirque_pinnacle_init(void);
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);
void cirque_pinnacle_set_scale(uint16_t scale);
#ifndef CIRQUE_PINNACLE_TIMEOUT
# define CIRQUE_PINNACLE_TIMEOUT 20
# define CIRQUE_PINNACLE_TIMEOUT 20 // I2C timeout in milliseconds
#endif
#define CIRQUE_PINNACLE_ABSOLUTE_MODE 1
#define CIRQUE_PINNACLE_RELATIVE_MODE 0
#ifndef CIRQUE_PINNACLE_POSITION_MODE
# define CIRQUE_PINNACLE_POSITION_MODE CIRQUE_PINNACLE_ABSOLUTE_MODE
#endif
// Coordinate scaling values
@ -43,7 +34,9 @@ void cirque_pinnacle_set_scale(uint16_t scale);
#ifndef CIRQUE_PINNACLE_Y_RANGE
# define CIRQUE_PINNACLE_Y_RANGE (CIRQUE_PINNACLE_Y_UPPER - CIRQUE_PINNACLE_Y_LOWER)
#endif
#if !defined(POINTING_DEVICE_TASK_THROTTLE_MS)
# define POINTING_DEVICE_TASK_THROTTLE_MS 10 // Cirque Pinnacle in normal operation produces data every 10ms. Advanced configuration for pen/stylus usage might require lower values.
#endif
#if defined(POINTING_DEVICE_DRIVER_cirque_pinnacle_i2c)
# include "i2c_master.h"
// Cirque's 7-bit I2C Slave Address
@ -72,3 +65,26 @@ void cirque_pinnacle_set_scale(uint16_t scale);
# endif
# endif
#endif
// Convenient way to store and access measurements
typedef struct {
bool valid; // true if valid data was read, false if no data was ready
#if CIRQUE_PINNACLE_POSITION_MODE
uint16_t xValue;
uint16_t yValue;
uint16_t zValue;
uint8_t buttonFlags;
bool touchDown;
#else
uint8_t xDelta;
uint8_t yDelta;
uint8_t wheelCount;
uint8_t buttons;
#endif
} pinnacle_data_t;
void cirque_pinnacle_init(void);
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);
void cirque_pinnacle_set_scale(uint16_t scale);

4
drivers/sensors/cirque_pinnacle_i2c.c
View file

@ -19,7 +19,7 @@ void RAP_ReadBytes(uint8_t address, uint8_t* data, uint8_t count) {
i2c_writeReg(CIRQUE_PINNACLE_ADDR << 1, cmdByte, NULL, 0, CIRQUE_PINNACLE_TIMEOUT);
if (i2c_readReg(CIRQUE_PINNACLE_ADDR << 1, cmdByte, data, count, CIRQUE_PINNACLE_TIMEOUT) != I2C_STATUS_SUCCESS) {
#ifdef CONSOLE_ENABLE
dprintf("error right touchpad\n");
dprintf("error cirque_pinnacle i2c_readReg\n");
#endif
touchpad_init = false;
}
@ -34,7 +34,7 @@ void RAP_Write(uint8_t address, uint8_t data) {
if (touchpad_init) {
if (i2c_writeReg(CIRQUE_PINNACLE_ADDR << 1, cmdByte, &data, sizeof(data), CIRQUE_PINNACLE_TIMEOUT) != I2C_STATUS_SUCCESS) {
#ifdef CONSOLE_ENABLE
dprintf("error right touchpad\n");
dprintf("error cirque_pinnacle i2c_writeReg\n");
#endif
touchpad_init = false;
}

4
drivers/sensors/cirque_pinnacle_spi.c
View file

@ -25,7 +25,7 @@ void RAP_ReadBytes(uint8_t address, uint8_t* data, uint8_t count) {
}
} else {
#ifdef CONSOLE_ENABLE
dprintf("error right touchpad\n");
dprintf("error cirque_pinnacle spi_start read\n");
#endif
touchpad_init = false;
}
@ -43,7 +43,7 @@ void RAP_Write(uint8_t address, uint8_t data) {
spi_write(data);
} else {
#ifdef CONSOLE_ENABLE
dprintf("error right touchpad\n");
dprintf("error cirque_pinnacle spi_start write\n");
#endif
touchpad_init = false;
}