mirror of
https://github.com/qmk/qmk_firmware.git
synced 2024-12-11 20:31:02 +00:00
288 lines
10 KiB
C
288 lines
10 KiB
C
// 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
|
|
#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
|
|
#endif
|
|
// clang-format on
|
|
|
|
bool touchpad_init;
|
|
uint16_t scale_data = 1024;
|
|
|
|
void cirque_pinnacle_clear_flags(void);
|
|
void cirque_pinnacle_enable_feed(bool feedEnable);
|
|
void RAP_ReadBytes(uint8_t address, uint8_t* data, uint8_t count);
|
|
void RAP_Write(uint8_t address, uint8_t data);
|
|
|
|
#ifdef CONSOLE_ENABLE
|
|
void print_byte(uint8_t byte) {
|
|
xprintf("%c%c%c%c%c%c%c%c|", (byte & 0x80 ? '1' : '0'), (byte & 0x40 ? '1' : '0'), (byte & 0x20 ? '1' : '0'), (byte & 0x10 ? '1' : '0'), (byte & 0x08 ? '1' : '0'), (byte & 0x04 ? '1' : '0'), (byte & 0x02 ? '1' : '0'), (byte & 0x01 ? '1' : '0'));
|
|
}
|
|
#endif
|
|
|
|
/* Logical Scaling Functions */
|
|
// Clips raw coordinates to "reachable" window of sensor
|
|
// NOTE: values outside this window can only appear as a result of noise
|
|
void ClipCoordinates(pinnacle_data_t* coordinates) {
|
|
if (coordinates->xValue < CIRQUE_PINNACLE_X_LOWER) {
|
|
coordinates->xValue = CIRQUE_PINNACLE_X_LOWER;
|
|
} else if (coordinates->xValue > CIRQUE_PINNACLE_X_UPPER) {
|
|
coordinates->xValue = CIRQUE_PINNACLE_X_UPPER;
|
|
}
|
|
if (coordinates->yValue < CIRQUE_PINNACLE_Y_LOWER) {
|
|
coordinates->yValue = CIRQUE_PINNACLE_Y_LOWER;
|
|
} else if (coordinates->yValue > CIRQUE_PINNACLE_Y_UPPER) {
|
|
coordinates->yValue = CIRQUE_PINNACLE_Y_UPPER;
|
|
}
|
|
}
|
|
|
|
uint16_t cirque_pinnacle_get_scale(void) {
|
|
return scale_data;
|
|
}
|
|
void cirque_pinnacle_set_scale(uint16_t scale) {
|
|
scale_data = scale;
|
|
}
|
|
|
|
// Scales data to desired X & Y resolution
|
|
void cirque_pinnacle_scale_data(pinnacle_data_t* coordinates, uint16_t xResolution, uint16_t yResolution) {
|
|
uint32_t xTemp = 0;
|
|
uint32_t yTemp = 0;
|
|
|
|
ClipCoordinates(coordinates);
|
|
|
|
xTemp = coordinates->xValue;
|
|
yTemp = coordinates->yValue;
|
|
|
|
// translate coordinates to (0, 0) reference by subtracting edge-offset
|
|
xTemp -= CIRQUE_PINNACLE_X_LOWER;
|
|
yTemp -= CIRQUE_PINNACLE_Y_LOWER;
|
|
|
|
// scale coordinates to (xResolution, yResolution) range
|
|
coordinates->xValue = (uint16_t)(xTemp * xResolution / CIRQUE_PINNACLE_X_RANGE);
|
|
coordinates->yValue = (uint16_t)(yTemp * yResolution / CIRQUE_PINNACLE_Y_RANGE);
|
|
}
|
|
|
|
// Clears Status1 register flags (SW_CC and SW_DR)
|
|
void cirque_pinnacle_clear_flags() {
|
|
RAP_Write(STATUS_1, 0x00);
|
|
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
|
|
|
|
if (feedEnable) {
|
|
temp |= 0x01; // Set Feed Enable bit
|
|
} else {
|
|
temp &= ~0x01; // Clear Feed Enable bit
|
|
}
|
|
RAP_Write(FEEDCONFIG_1, temp);
|
|
}
|
|
|
|
/* 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;
|
|
|
|
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
|
|
|
|
for (uint16_t i = 0; i < count; i++) {
|
|
RAP_Write(ERA_CONTROL, 0x05); // Signal ERA-read (auto-increment) to Pinnacle
|
|
|
|
// Wait for status register 0x1E to clear
|
|
do {
|
|
RAP_ReadBytes(ERA_CONTROL, &ERAControlValue, 1);
|
|
} while (ERAControlValue != 0x00);
|
|
|
|
RAP_ReadBytes(ERA_VALUE, data + i, 1);
|
|
|
|
cirque_pinnacle_clear_flags();
|
|
}
|
|
}
|
|
|
|
// 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;
|
|
|
|
cirque_pinnacle_enable_feed(false); // Disable feed
|
|
|
|
RAP_Write(ERA_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(ERA_CONTROL, 0x02); // Signal an ERA-write to Pinnacle
|
|
|
|
// Wait for status register 0x1E to clear
|
|
do {
|
|
RAP_ReadBytes(ERA_CONTROL, &ERAControlValue, 1);
|
|
} while (ERAControlValue != 0x00);
|
|
|
|
cirque_pinnacle_clear_flags();
|
|
}
|
|
|
|
void cirque_pinnacle_set_adc_attenuation(uint8_t adcGain) {
|
|
uint8_t temp = 0x00;
|
|
|
|
ERA_ReadBytes(0x0187, &temp, 1);
|
|
temp &= 0x3F; // clear top two bits
|
|
temp |= adcGain;
|
|
ERA_WriteByte(0x0187, temp);
|
|
ERA_ReadBytes(0x0187, &temp, 1);
|
|
}
|
|
|
|
// Changes thresholds to improve detection of fingers
|
|
void cirque_pinnacle_tune_edge_sensitivity(void) {
|
|
uint8_t temp = 0x00;
|
|
|
|
ERA_ReadBytes(0x0149, &temp, 1);
|
|
ERA_WriteByte(0x0149, 0x04);
|
|
ERA_ReadBytes(0x0149, &temp, 1);
|
|
|
|
ERA_ReadBytes(0x0168, &temp, 1);
|
|
ERA_WriteByte(0x0168, 0x03);
|
|
ERA_ReadBytes(0x0168, &temp, 1);
|
|
}
|
|
|
|
/* Pinnacle-based TM040040/TM035035/TM023023 Functions */
|
|
void cirque_pinnacle_init(void) {
|
|
#if defined(POINTING_DEVICE_DRIVER_cirque_pinnacle_spi)
|
|
spi_init();
|
|
#elif defined(POINTING_DEVICE_DRIVER_cirque_pinnacle_i2c)
|
|
i2c_init();
|
|
#endif
|
|
|
|
touchpad_init = true;
|
|
|
|
// 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);
|
|
wait_ms(30); // Pinnacle needs 10-15ms to boot, so wait long enough before configuring
|
|
RAP_Write(SYSCONFIG_1, 0x00);
|
|
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);
|
|
|
|
// 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);
|
|
|
|
cirque_pinnacle_tune_edge_sensitivity();
|
|
cirque_pinnacle_enable_feed(true);
|
|
}
|
|
|
|
pinnacle_data_t cirque_pinnacle_read_data(void) {
|
|
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();
|
|
|
|
#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;
|
|
}
|