Device migrations, drivers and fixes (#571)

Device migrations:

- cyd-4848S040c
- guition-jc1060p470ciwy
- guition-jc2432w328c
- guition-jc3248w535c (known issue with display and touch, Shadowtrance will look into it)
- guition-jc8048w550c
- heltec-wifi-lora-32-v3
- lilygo-tdeck-max (excluding graphics)
- lilygo-tdisplay
- lilygo-tdisplay-s3
- lilygo-tdongle-s3
- lilygo-tlora-pager

Driver migrations:

- Implemented haptic driver interface in kernel
- AXS15231b
- BQ25896
- BQ27220
- CST328
- CST6xx
- DRV2605
- JD9165
- Custom LilyGO driver for T-Lora Pager
- SSD1306
- ST7701
- ST7735
- SY6970
- TCA8418

Fixes/improvements:

- Boot app: support for multiple power devices, improved UI
- lvgl_devices and related code: fixes for mapping
- Support for arrays in dts parser
This commit is contained in:
Ken Van Hoeylandt
2026-07-18 15:01:42 +02:00
committed by GitHub
parent 3b5a401594
commit d896657bf9
290 changed files with 9113 additions and 6719 deletions
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idf_component_register(
SRC_DIRS "Source"
INCLUDE_DIRS "Source"
REQUIRES Tactility
)
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# BQ25896 Power Management IC
[Product page](https://www.ti.com/product/BQ25896)
[Data sheet](https://www.ti.com/lit/gpn/bq25896)
[Refence implementation](https://github.com/lewisxhe/XPowersLib/blob/73b92a6641b72c0aca2be989207689cb05da9788/src/PowersBQ25896.tpp)
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#include "Bq25896.h"
#include <tactility/log.h>
constexpr auto* TAG = "BQ25896";
void Bq25896::powerOff() {
LOG_I(TAG, "Power off");
bitOn(0x09, BIT(5));
}
void Bq25896::powerOn() {
LOG_I(TAG, "Power on");
bitOff(0x09, BIT(5));
}
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#pragma once
#include <Tactility/hal/i2c/I2cDevice.h>
constexpr auto BQ25896_ADDRESS = 0x6b;
class Bq25896 final : public tt::hal::i2c::I2cDevice {
public:
explicit Bq25896(::Device* controller) : I2cDevice(controller, BQ25896_ADDRESS) {
powerOn();
}
std::string getName() const override { return "BQ25896"; }
std::string getDescription() const override { return "I2C 1 cell 3A buck battery charger with power path and PSEL"; }
void powerOff();
void powerOn();
};
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idf_component_register(
SRC_DIRS "Source"
INCLUDE_DIRS "Source"
REQUIRES Tactility
)
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# BQ27220
Power management: Single-Cell CEDV Fuel Gauge
[Datasheet](https://www.ti.com/lit/gpn/bq27220)
[User Guide](https://www.ti.com/lit/pdf/sluubd4)
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#include "Bq27220.h"
#include <tactility/log.h>
#include "esp_sleep.h"
constexpr auto* TAG = "BQ27220";
#define ARRAYSIZE(a) (sizeof(a) / sizeof(*(a)))
static uint8_t highByte(const uint16_t word) { return (word >> 8) & 0xFF; }
static uint8_t lowByte(const uint16_t word) { return word & 0xFF; }
static constexpr void swapEndianess(uint16_t &word) { word = (lowByte(word) << 8) | highByte(word); }
namespace registers {
static const uint16_t SUBCMD_CTRL_STATUS = 0x0000U;
static const uint16_t SUBCMD_DEVICE_NUMBER = 0x0001U;
static const uint16_t SUBCMD_FW_VERSION = 0x0002U;
static const uint16_t SUBCMD_HW_VERSION = 0x0003U;
static const uint16_t SUBCMD_BOARD_OFFSET = 0x0009U;
static const uint16_t SUBCMD_CC_OFFSET = 0x000AU;
static const uint16_t SUBCMD_CC_OFFSET_SAVE = 0x000BU;
static const uint16_t SUBCMD_OCV_CMD = 0x000CU;
static const uint16_t SUBCMD_BAT_INSERT = 0x000DU;
static const uint16_t SUBCMD_BAT_REMOVE = 0x000EU;
static const uint16_t SUBCMD_SET_SNOOZE = 0x0013U;
static const uint16_t SUBCMD_CLEAR_SNOOZE = 0x0014U;
static const uint16_t SUBCMD_SET_PROFILE_1 = 0x0015U;
static const uint16_t SUBCMD_SET_PROFILE_2 = 0x0016U;
static const uint16_t SUBCMD_SET_PROFILE_3 = 0x0017U;
static const uint16_t SUBCMD_SET_PROFILE_4 = 0x0018U;
static const uint16_t SUBCMD_SET_PROFILE_5 = 0x0019U;
static const uint16_t SUBCMD_SET_PROFILE_6 = 0x001AU;
static const uint16_t SUBCMD_CAL_TOGGLE = 0x002DU;
static const uint16_t SUBCMD_SEALED = 0x0030U;
static const uint16_t SUBCMD_RESET = 0x0041U;
static const uint16_t SUBCMD_EXIT_CAL = 0x0080U;
static const uint16_t SUBCMD_ENTER_CAL = 0x0081U;
static const uint16_t SUBCMD_ENTER_CFG_UPDATE = 0x0090U;
static const uint16_t SUBCMD_EXIT_CFG_UPDATE_REINIT = 0x0091U;
static const uint16_t SUBCMD_EXIT_CFG_UPDATE = 0x0092U;
static const uint16_t SUBCMD_RETURN_TO_ROM = 0x0F00U;
static const uint8_t CMD_CONTROL = 0x00U;
static const uint8_t CMD_AT_RATE = 0x02U;
static const uint8_t CMD_AT_RATE_TIME_TO_EMPTY = 0x04U;
static const uint8_t CMD_TEMPERATURE = 0x06U;
static const uint8_t CMD_VOLTAGE = 0x08U;
static const uint8_t CMD_BATTERY_STATUS = 0x0AU;
static const uint8_t CMD_CURRENT = 0x0CU;
static const uint8_t CMD_REMAINING_CAPACITY = 0x10U;
static const uint8_t CMD_FULL_CHARGE_CAPACITY = 0x12U;
static const uint8_t CMD_AVG_CURRENT = 0x14U;
static const uint8_t CMD_TIME_TO_EMPTY = 0x16U;
static const uint8_t CMD_TIME_TO_FULL = 0x18U;
static const uint8_t CMD_STANDBY_CURRENT = 0x1AU;
static const uint8_t CMD_STANDBY_TIME_TO_EMPTY = 0x1CU;
static const uint8_t CMD_MAX_LOAD_CURRENT = 0x1EU;
static const uint8_t CMD_MAX_LOAD_TIME_TO_EMPTY = 0x20U;
static const uint8_t CMD_RAW_COULOMB_COUNT = 0x22U;
static const uint8_t CMD_AVG_POWER = 0x24U;
static const uint8_t CMD_INTERNAL_TEMPERATURE = 0x28U;
static const uint8_t CMD_CYCLE_COUNT = 0x2AU;
static const uint8_t CMD_STATE_OF_CHARGE = 0x2CU;
static const uint8_t CMD_STATE_OF_HEALTH = 0x2EU;
static const uint8_t CMD_CHARGE_VOLTAGE = 0x30U;
static const uint8_t CMD_CHARGE_CURRENT = 0x32U;
static const uint8_t CMD_BTP_DISCHARGE_SET = 0x34U;
static const uint8_t CMD_BTP_CHARGE_SET = 0x36U;
static const uint8_t CMD_OPERATION_STATUS = 0x3AU;
static const uint8_t CMD_DESIGN_CAPACITY = 0x3CU;
static const uint8_t CMD_SELECT_SUBCLASS = 0x3EU;
static const uint8_t CMD_MAC_DATA = 0x40U;
static const uint8_t CMD_MAC_DATA_SUM = 0x60U;
static const uint8_t CMD_MAC_DATA_LEN = 0x61U;
static const uint8_t CMD_ANALOG_COUNT = 0x79U;
static const uint8_t CMD_RAW_CURRENT = 0x7AU;
static const uint8_t CMD_RAW_VOLTAGE = 0x7CU;
static const uint8_t CMD_RAW_INTERNAL_TEMPERATURE = 0x7EU;
static const uint8_t MAC_BUFFER_START = 0x40U;
static const uint8_t MAC_BUFFER_END = 0x5FU;
static const uint8_t MAC_DATA_SUM = 0x60U;
static const uint8_t MAC_DATA_LEN = 0x61U;
static const uint8_t ROM_START = 0x3EU;
static const uint16_t ROM_FULL_CHARGE_CAPACITY = 0x929DU;
static const uint16_t ROM_DESIGN_CAPACITY = 0x929FU;
static const uint16_t ROM_OPERATION_CONFIG_A = 0x9206U;
static const uint16_t ROM_OPERATION_CONFIG_B = 0x9208U;
} // namespace registers
bool Bq27220::configureCapacity(uint16_t designCapacity, uint16_t fullChargeCapacity) {
return performConfigUpdate([this, designCapacity, fullChargeCapacity]() {
// Set the design capacity
if (!writeConfig16(registers::ROM_DESIGN_CAPACITY, designCapacity)) {
LOG_E(TAG, "Failed to set design capacity!");
return false;
}
vTaskDelay(10 / portTICK_PERIOD_MS);
// Set full charge capacity
if (!writeConfig16(registers::ROM_FULL_CHARGE_CAPACITY, fullChargeCapacity)) {
LOG_E(TAG, "Failed to set full charge capacity!");
return false;
}
vTaskDelay(10 / portTICK_PERIOD_MS);
return true;
});
}
bool Bq27220::getVoltage(uint16_t &value) {
if (readRegister16(registers::CMD_VOLTAGE, value)) {
swapEndianess(value);
return true;
}
return false;
}
bool Bq27220::getCurrent(int16_t &value) {
uint16_t u16 = 0;
if (readRegister16(registers::CMD_CURRENT, u16)) {
swapEndianess(u16);
value = (int16_t)u16;
return true;
}
return false;
}
bool Bq27220::getBatteryStatus(BatteryStatus &batt_sta) {
if (readRegister16(registers::CMD_BATTERY_STATUS, batt_sta.full)) {
swapEndianess(batt_sta.full);
return true;
}
return false;
}
bool Bq27220::getOperationStatus(OperationStatus &oper_sta) {
if (readRegister16(registers::CMD_OPERATION_STATUS, oper_sta.full)) {
swapEndianess(oper_sta.full);
return true;
}
return false;
}
bool Bq27220::getTemperature(uint16_t &value) {
if (readRegister16(registers::CMD_TEMPERATURE, value)) {
swapEndianess(value);
return true;
}
return false;
}
bool Bq27220::getFullChargeCapacity(uint16_t &value) {
if (readRegister16(registers::CMD_FULL_CHARGE_CAPACITY, value)) {
swapEndianess(value);
return true;
}
return false;
}
bool Bq27220::getDesignCapacity(uint16_t &value) {
if (readRegister16(registers::CMD_DESIGN_CAPACITY, value)) {
swapEndianess(value);
return true;
}
return false;
}
bool Bq27220::getRemainingCapacity(uint16_t &value) {
if (readRegister16(registers::CMD_REMAINING_CAPACITY, value)) {
swapEndianess(value);
return true;
}
return false;
}
bool Bq27220::getStateOfCharge(uint16_t &value) {
if (readRegister16(registers::CMD_STATE_OF_CHARGE, value)) {
swapEndianess(value);
return true;
}
return false;
}
bool Bq27220::getStateOfHealth(uint16_t &value) {
if (readRegister16(registers::CMD_STATE_OF_HEALTH, value)) {
swapEndianess(value);
return true;
}
return false;
}
bool Bq27220::getChargeVoltageMax(uint16_t &value) {
if (readRegister16(registers::CMD_CHARGE_VOLTAGE, value)) {
swapEndianess(value);
return true;
}
return false;
}
bool Bq27220::unsealDevice() {
uint8_t cmd1[] = {0x00, 0x14, 0x04};
if (!write(cmd1, ARRAYSIZE(cmd1))) {
return false;
}
vTaskDelay(50 / portTICK_PERIOD_MS);
uint8_t cmd2[] = {0x00, 0x72, 0x36};
if (!write(cmd2, ARRAYSIZE(cmd2))) {
return false;
}
vTaskDelay(50 / portTICK_PERIOD_MS);
return true;
}
bool Bq27220::unsealFullAccess()
{
uint8_t buffer[3];
buffer[0] = 0x00;
buffer[1] = lowByte((accessKey >> 24));
buffer[2] = lowByte((accessKey >> 16));
if (!write(buffer, ARRAYSIZE(buffer))) {
return false;
}
vTaskDelay(50 / portTICK_PERIOD_MS);
buffer[1] = lowByte((accessKey >> 8));
buffer[2] = lowByte((accessKey));
if (!write(buffer, ARRAYSIZE(buffer))) {
return false;
}
vTaskDelay(50 / portTICK_PERIOD_MS);
return true;
}
bool Bq27220::exitSealMode() {
return sendSubCommand(registers::SUBCMD_SEALED);
}
bool Bq27220::sendSubCommand(uint16_t subCmd, bool waitConfirm)
{
uint8_t buffer[3];
buffer[0] = 0x00;
buffer[1] = lowByte(subCmd);
buffer[2] = highByte(subCmd);
if (!write(buffer, ARRAYSIZE(buffer))) {
return false;
}
if (!waitConfirm) {
vTaskDelay(10 / portTICK_PERIOD_MS);
return true;
}
constexpr uint8_t statusReg = 0x00;
int waitCount = 20;
vTaskDelay(10 / portTICK_PERIOD_MS);
while (waitCount--) {
writeRead(&statusReg, 1, buffer, 2);
uint16_t *value = reinterpret_cast<uint16_t *>(buffer);
if (*value == 0xFFA5) {
return true;
}
vTaskDelay(100 / portTICK_PERIOD_MS);
}
LOG_E(TAG, "Subcommand 0x%04X failed!", subCmd);
return false;
}
bool Bq27220::writeConfig16(uint16_t address, uint16_t value) {
constexpr uint8_t fixedDataLength = 0x06;
const uint8_t msbAccessValue = highByte(address);
const uint8_t lsbAccessValue = lowByte(address);
// Write to access the MSB of Capacity
writeRegister8(registers::ROM_START, msbAccessValue);
// Write to access the LSB of Capacity
writeRegister8(registers::ROM_START + 1, lsbAccessValue);
// Write two Capacity bytes starting from 0x40
uint8_t valueMsb = highByte(value);
uint8_t valueLsb = lowByte(value);
uint8_t configRaw[] = {valueMsb, valueLsb};
writeRegister(registers::MAC_BUFFER_START, configRaw, 2);
// Calculate new checksum
uint8_t checksum = 0xFF - ((msbAccessValue + lsbAccessValue + valueMsb + valueLsb) & 0xFF);
// Write new checksum (0x60)
writeRegister8(registers::MAC_DATA_SUM, checksum);
// Write the block length
writeRegister8(registers::MAC_DATA_LEN, fixedDataLength);
return true;
}
bool Bq27220::configPreamble(bool &isSealed) {
int timeout = 0;
OperationStatus status;
// Check access settings
if(!getOperationStatus(status)) {
LOG_E(TAG, "Cannot read initial operation status!");
return false;
}
if (status.reg.SEC == OperationStatusSecSealed) {
isSealed = true;
if (!unsealDevice()) {
LOG_E(TAG, "Unsealing device failure!");
return false;
}
}
if (status.reg.SEC != OperationStatusSecFull) {
if (!unsealFullAccess()) {
LOG_E(TAG, "Unsealing full access failure!");
return false;
}
}
// Send ENTER_CFG_UPDATE command (0x0090)
if (!sendSubCommand(registers::SUBCMD_ENTER_CFG_UPDATE)) {
LOG_E(TAG, "Config Update Subcommand failure!");
}
// Confirm CFUPDATE mode by polling the OperationStatus() register until Bit 2 is set.
bool isConfigUpdate = false;
for (timeout = 30; timeout; --timeout) {
getOperationStatus(status);
if (status.reg.CFGUPDATE) {
isConfigUpdate = true;
break;
}
vTaskDelay(100 / portTICK_PERIOD_MS);
}
if (!isConfigUpdate) {
LOG_E(TAG, "Update Mode timeout, maybe the access key for full permissions is invalid!");
return false;
}
return true;
}
bool Bq27220::configEpilouge(const bool isSealed) {
int timeout = 0;
OperationStatus status;
// Exit CFUPDATE mode by sending the EXIT_CFG_UPDATE_REINIT (0x0091) or EXIT_CFG_UPDATE (0x0092) command
sendSubCommand(registers::SUBCMD_EXIT_CFG_UPDATE_REINIT);
vTaskDelay(10 / portTICK_PERIOD_MS);
// Confirm that CFUPDATE mode has been exited by polling the OperationStatus() register until bit 2 is cleared
for (timeout = 60; timeout; --timeout) {
getOperationStatus(status);
if (!status.reg.CFGUPDATE) {
break;
}
vTaskDelay(100 / portTICK_PERIOD_MS);
}
if (timeout == 0) {
LOG_E(TAG, "Timed out waiting to exit update mode.");
return false;
}
// If the device was previously in SEALED state, return to SEALED mode by sending the Control(0x0030) subcommand
if (isSealed) {
LOG_D(TAG, "Restore Safe Mode!");
exitSealMode();
}
return true;
}
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#pragma once
#include <Tactility/hal/i2c/I2cDevice.h>
#define BQ27220_ADDRESS 0x55
class Bq27220 final : public tt::hal::i2c::I2cDevice {
uint32_t accessKey;
bool unsealDevice();
bool unsealFullAccess();
bool exitSealMode();
bool sendSubCommand(uint16_t subCmd, bool waitConfirm = false);
bool writeConfig16(uint16_t address, uint16_t value);
bool configPreamble(bool &isSealed);
bool configEpilouge(bool isSealed);
template<typename T>
bool performConfigUpdate(T configUpdateFunc)
{
bool isSealed = false;
if (!configPreamble(isSealed)) {
return false;
}
bool result = configUpdateFunc();
configEpilouge(isSealed);
return result;
}
public:
// Register structures lifted from
// https://github.com/Xinyuan-LilyGO/T-Deck-Pro/blob/master/lib/BQ27220/bq27220.h
// Copyright (c) 2025 Liygo / Shenzhen Xinyuan Electronic Technology Co., Ltd
union BatteryStatus {
struct
{
// Low byte, Low bit first
uint16_t DSG : 1; /**< The device is in DISCHARGE */
uint16_t SYSDWN : 1; /**< System down bit indicating the system should shut down */
uint16_t TDA : 1; /**< Terminate Discharge Alarm */
uint16_t BATTPRES : 1; /**< Battery Present detected */
uint16_t AUTH_GD : 1; /**< Detect inserted battery */
uint16_t OCVGD : 1; /**< Good OCV measurement taken */
uint16_t TCA : 1; /**< Terminate Charge Alarm */
uint16_t RSVD : 1; /**< Reserved */
// High byte, Low bit first
uint16_t CHGING : 1; /**< Charge inhibit */
uint16_t FC : 1; /**< Full-charged is detected */
uint16_t OTD : 1; /**< Overtemperature in discharge condition is detected */
uint16_t OTC : 1; /**< Overtemperature in charge condition is detected */
uint16_t SLEEP : 1; /**< Device is operating in SLEEP mode when set */
uint16_t OCVFALL : 1; /**< Status bit indicating that the OCV reading failed due to current */
uint16_t OCVCOMP : 1; /**< An OCV measurement update is complete */
uint16_t FD : 1; /**< Full-discharge is detected */
} reg;
uint16_t full;
};
enum OperationStatusSec {
OperationStatusSecSealed = 0b11,
OperationStatusSecUnsealed = 0b10,
OperationStatusSecFull = 0b01,
};
union OperationStatus {
struct
{
// Low byte, Low bit first
bool CALMD : 1; /**< Calibration mode enabled */
uint8_t SEC : 2; /**< Current security access */
bool EDV2 : 1; /**< EDV2 threshold exceeded */
bool VDQ : 1; /**< Indicates if Current discharge cycle is NOT qualified or qualified for an FCC updated */
bool INITCOMP : 1; /**< gauge initialization is complete */
bool SMTH : 1; /**< RemainingCapacity is scaled by smooth engine */
bool BTPINT : 1; /**< BTP threshold has been crossed */
// High byte, Low bit first
uint8_t RSVD1 : 2; /**< Reserved */
bool CFGUPDATE : 1; /**< Gauge is in CONFIG UPDATE mode */
uint8_t RSVD0 : 5; /**< Reserved */
} reg;
uint16_t full;
};
std::string getName() const override { return "BQ27220"; }
std::string getDescription() const override { return "I2C-controlled CEDV battery fuel gauge"; }
explicit Bq27220(::Device* controller) : I2cDevice(controller, BQ27220_ADDRESS), accessKey(0xFFFFFFFF) {}
bool configureCapacity(uint16_t designCapacity, uint16_t fullChargeCapacity);
bool getVoltage(uint16_t &value);
bool getCurrent(int16_t &value);
bool getBatteryStatus(BatteryStatus &batt_sta);
bool getOperationStatus(OperationStatus &oper_sta);
bool getTemperature(uint16_t &value);
bool getFullChargeCapacity(uint16_t &value);
bool getDesignCapacity(uint16_t &value);
bool getRemainingCapacity(uint16_t &value);
bool getStateOfCharge(uint16_t &value);
bool getStateOfHealth(uint16_t &value);
bool getChargeVoltageMax(uint16_t &value);
};
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idf_component_register(
SRC_DIRS "Source"
INCLUDE_DIRS "Source"
REQUIRES Tactility
)
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# DRV2605 Haptic Driver
[Datasheet](https://www.ti.com/product/DRV2605)
[Reference implementation](https://github.com/lewisxhe/SensorLib/blob/master/src/SensorDRV2605.hpp)
[Usage in T-Lora Pager code from LilyGO](https://github.com/Xinyuan-LilyGO/LilyGoLib/blob/6b534a28b0ec31313e4a7e89c5e8b7e4437e6fd1/src/LilyGo_LoRa_Pager.cpp#L956)
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#include "Drv2605.h"
#include <tactility/check.h>
#include <tactility/log.h>
constexpr auto* TAG = "DRV2605";
Drv2605::Drv2605(::Device* controller, bool autoPlayStartupBuzz) : I2cDevice(controller, ADDRESS), autoPlayStartupBuzz(autoPlayStartupBuzz) {
check(init(), "Initialize DRV2605");
if (autoPlayStartupBuzz) {
setWaveFormForBuzz();
startPlayback();
}
}
bool Drv2605::init() {
uint8_t status;
if (!readRegister8(static_cast<uint8_t>(Register::Status), status)) {
LOG_E(TAG, "Failed to read status");
return false;
}
status >>= 5;
ChipId chip_id = static_cast<ChipId>(status);
if (chip_id != ChipId::DRV2604 && chip_id != ChipId::DRV2604L && chip_id != ChipId::DRV2605 && chip_id != ChipId::DRV2605L) {
LOG_E(TAG, "Unknown chip id %02X", static_cast<uint8_t>(chip_id));
return false;
}
writeRegister(Register::Mode, 0x00); // Get out of standby
writeRegister(Register::RealtimePlaybackInput, 0x00); // Disable
setWaveFormForClick();
// ERM open loop
uint8_t feedback;
if (!readRegister(Register::Feedback, feedback)) {
LOG_E(TAG, "Failed to read feedback");
return false;
}
writeRegister(Register::Feedback, feedback & 0x7F); // N_ERM_LRA off
bitOnByIndex(static_cast<uint8_t>(Register::Control3), 5); // ERM_OPEN_LOOP on
return true;
}
void Drv2605::setWaveFormForBuzz() {
writeRegister(Register::WaveSequence1, 1); // Strong click
writeRegister(Register::WaveSequence2, 1); // Strong click
writeRegister(Register::WaveSequence3, 1); // Strong click
writeRegister(Register::WaveSequence4, 0); // End sequence
writeRegister(Register::OverdriveTimeOffset, 0); // No overdrive
writeRegister(Register::SustainTimeOffsetPostivie, 0);
writeRegister(Register::SustainTimeOffsetNegative, 0);
writeRegister(Register::BrakeTimeOffset, 0);
writeRegister(Register::AudioInputLevelMax, 0x64);
}
void Drv2605::setWaveFormForClick() {
writeRegister(Register::WaveSequence1, 1); // Strong click
writeRegister(Register::WaveSequence2, 0); // End sequence
writeRegister(Register::OverdriveTimeOffset, 0); // No overdrive
writeRegister(Register::SustainTimeOffsetPostivie, 0);
writeRegister(Register::SustainTimeOffsetNegative, 0);
writeRegister(Register::BrakeTimeOffset, 0);
writeRegister(Register::AudioInputLevelMax, 0x64);
}
void Drv2605::setWaveForm(uint8_t slot, uint8_t waveform) {
writeRegister8(static_cast<uint8_t>(Register::WaveSequence1) + slot, waveform);
}
void Drv2605::selectLibrary(uint8_t library) {
writeRegister(Register::WaveLibrarySelect, library);
}
void Drv2605::startPlayback() {
writeRegister(Register::Go, 0x01);
}
void Drv2605::stopPlayback() {
writeRegister(Register::Go, 0x00);
}
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#pragma once
#include <Tactility/hal/i2c/I2cDevice.h>
class Drv2605 : public tt::hal::i2c::I2cDevice {
static constexpr auto ADDRESS = 0x5A;
bool autoPlayStartupBuzz;
// Chip IDs
enum class ChipId {
DRV2604 = 0x04, // Has RAM. Doesn't havew licensed ROM library.
DRV2605 = 0x03, // Has licensed ROM library. Doesn't have RAM.
DRV2604L = 0x06, // Low-voltage variant of the DRV2604.
DRV2605L = 0x07 // Low-voltage variant of the DRV2605.
};
enum class Register {
Status = 0x00,
Mode = 0x01,
RealtimePlaybackInput = 0x02,
WaveLibrarySelect = 0x03,
WaveSequence1 = 0x04,
WaveSequence2 = 0x05,
WaveSequence3 = 0x06,
WaveSequence4 = 0x07,
WaveSequence5 = 0x08,
WaveSequence6 = 0x09,
WaveSequence7 = 0x0A,
WaveSequence8 = 0x0B,
Go = 0x0C,
OverdriveTimeOffset = 0x0D,
SustainTimeOffsetPostivie = 0x0E,
SustainTimeOffsetNegative = 0x0F,
BrakeTimeOffset = 0x10,
AudioControl = 0x11,
AudioInputLevelMin = 0x12,
AudioInputLevelMax = 0x13,
AudioOutputLevelMin = 0x14,
AudioOutputLevelMax = 0x15,
RatedVoltage = 0x16,
OverdriveClampVoltage = 0x17,
AutoCalibrationCompensation = 0x18,
AutoCalibrationBackEmf = 0x19,
Feedback = 0x1A,
Control1 = 0x1B,
Control2 = 0x1C,
Control3 = 0x1D,
Control4 = 0x1E,
Vbat = 0x21,
LraResonancePeriod = 0x22,
};
bool writeRegister(Register reg, const uint8_t value) const {
return writeRegister8(static_cast<uint8_t>(reg), value);
}
bool readRegister(Register reg, uint8_t& value) const {
return readRegister8(static_cast<uint8_t>(reg), value);
}
public:
explicit Drv2605(::Device* controller, bool autoPlayStartupBuzz = true);
std::string getName() const final { return "DRV2605"; }
std::string getDescription() const final { return "Haptic driver for ERM/LRA with waveform library & auto-resonance tracking"; }
bool init();
void setWaveFormForBuzz();
void setWaveFormForClick();
/**
* @param slot a value from 0 to 7
* @param waveform
*/
void setWaveForm(uint8_t slot, uint8_t waveform);
void selectLibrary(uint8_t library);
void startPlayback();
void stopPlayback();
};
-5
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@@ -1,5 +0,0 @@
idf_component_register(
SRC_DIRS "Source"
INCLUDE_DIRS "Source"
REQUIRES Tactility driver EspLcdCompat esp_lcd lvgl
)
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# SSD1306
A very custom ESP32 LVGL driver for SSD1306 displays.
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#include "Ssd1306Display.h"
#include <tactility/log.h>
#include <esp_lcd_panel_commands.h>
#include <esp_lcd_panel_dev.h>
#include <esp_lcd_panel_ssd1306.h>
#include <esp_lvgl_port.h>
#include <esp_lcd_panel_ops.h>
#include <driver/i2c.h>
#include <freertos/FreeRTOS.h>
#include <freertos/task.h>
constexpr auto* TAG = "Ssd1306Display";
// SSD1306 commands
#define SSD1306_CMD_SET_CLOCK 0xD5
#define SSD1306_CMD_SET_CHARGE_PUMP 0x8D
#define SSD1306_CMD_SET_SEGMENT_REMAP 0xA0
#define SSD1306_CMD_SET_COM_SCAN_DIR 0xC0
#define SSD1306_CMD_SET_COM_PIN_CFG 0xDA
#define SSD1306_CMD_SET_CONTRAST 0x81
#define SSD1306_CMD_SET_PRECHARGE 0xD9
#define SSD1306_CMD_SET_VCOMH_DESELECT 0xDB
#define SSD1306_CMD_DISPLAY_NORMAL 0xA6
#define SSD1306_CMD_DISPLAY_INVERT 0xA7
#define SSD1306_CMD_DISPLAY_OFF 0xAE
#define SSD1306_CMD_DISPLAY_ON 0xAF
#define SSD1306_CMD_SET_MEMORY_MODE 0x20
#define SSD1306_CMD_SET_COLUMN_RANGE 0x21
#define SSD1306_CMD_SET_PAGE_RANGE 0x22
#define SSD1306_CMD_SET_MULTIPLEX 0xA8
#define SSD1306_CMD_SET_OFFSET 0xD3
#define SSD1306_CMD_STOP_SCROLL 0x2E
#define SSD1306_CMD_SET_SCAN_DIRECTION_REVERSED 0xC8
// Helper to send I2C commands directly
static bool ssd1306_i2c_send_cmd(i2c_port_t port, uint8_t addr, uint8_t cmd) {
uint8_t data[2] = {0x00, cmd}; // 0x00 = command mode
esp_err_t ret = i2c_master_write_to_device(port, addr, data, sizeof(data), pdMS_TO_TICKS(1000));
if (ret != ESP_OK) {
LOG_E(TAG, "Failed to send command 0x%02X: %d", cmd, (int)ret);
return false;
}
return true;
}
bool Ssd1306Display::createIoHandle(esp_lcd_panel_io_handle_t& ioHandle) {
const esp_lcd_panel_io_i2c_config_t io_config = {
.dev_addr = configuration->deviceAddress,
.on_color_trans_done = nullptr,
.user_ctx = nullptr,
.control_phase_bytes = 1,
.dc_bit_offset = 6,
.lcd_cmd_bits = 0,
.lcd_param_bits = 0,
.flags = {
.dc_low_on_data = false,
.disable_control_phase = false,
},
.scl_speed_hz = 0
};
if (esp_lcd_new_panel_io_i2c(static_cast<esp_lcd_i2c_bus_handle_t>(configuration->port), &io_config, &ioHandle) != ESP_OK) {
LOG_E(TAG, "Failed to create IO handle");
return false;
}
return true;
}
bool Ssd1306Display::createPanelHandle(esp_lcd_panel_io_handle_t ioHandle, esp_lcd_panel_handle_t& panelHandle) {
// Manual hardware reset with proper timing for Heltec V3
if (configuration->resetPin != GPIO_NUM_NC) {
gpio_config_t reset_gpio_config = {
.pin_bit_mask = 1ULL << configuration->resetPin,
.mode = GPIO_MODE_OUTPUT,
.pull_up_en = GPIO_PULLUP_DISABLE,
.pull_down_en = GPIO_PULLDOWN_DISABLE,
.intr_type = GPIO_INTR_DISABLE,
};
gpio_config(&reset_gpio_config);
gpio_set_level(configuration->resetPin, 0);
vTaskDelay(pdMS_TO_TICKS(10));
gpio_set_level(configuration->resetPin, 1);
vTaskDelay(pdMS_TO_TICKS(100));
}
// Create ESP-IDF panel (but don't call init - we'll do custom init)
esp_lcd_panel_dev_config_t panel_config = {
.reset_gpio_num = GPIO_NUM_NC, // Already handled above
.color_space = ESP_LCD_COLOR_SPACE_MONOCHROME,
.data_endian = LCD_RGB_DATA_ENDIAN_BIG,
.bits_per_pixel = 1, // Must be 1 for monochrome
.flags = {
.reset_active_high = false,
},
.vendor_config = nullptr,
};
#if ESP_IDF_VERSION >= ESP_IDF_VERSION_VAL(5, 3, 0)
esp_lcd_panel_ssd1306_config_t ssd1306_config = {
.height = static_cast<uint8_t>(configuration->verticalResolution),
};
panel_config.vendor_config = &ssd1306_config;
#endif
if (esp_lcd_new_panel_ssd1306(ioHandle, &panel_config, &panelHandle) != ESP_OK) {
LOG_E(TAG, "Failed to create panel");
return false;
}
// Don't call esp_lcd_panel_init() - it doesn't configure correctly for Heltec V3!
// Instead, send our custom initialization sequence directly via I2C
auto port = configuration->port;
auto addr = configuration->deviceAddress;
LOG_I(TAG, "Sending Heltec V3 custom init sequence");
// Display off while configuring
ssd1306_i2c_send_cmd(port, addr, SSD1306_CMD_DISPLAY_OFF);
// Set oscillator frequency (MUST come early in sequence)
ssd1306_i2c_send_cmd(port, addr, SSD1306_CMD_SET_CLOCK);
ssd1306_i2c_send_cmd(port, addr, 0xF0); // ~96 Hz
// Set multiplex ratio
ssd1306_i2c_send_cmd(port, addr, SSD1306_CMD_SET_MULTIPLEX);
ssd1306_i2c_send_cmd(port, addr, configuration->verticalResolution - 1);
ssd1306_i2c_send_cmd(port, addr, SSD1306_CMD_SET_OFFSET);
ssd1306_i2c_send_cmd(port, addr, 0x00);
ssd1306_i2c_send_cmd(port, addr, 0x40);
// Enable charge pump (required for Heltec V3 - must be before memory mode)
ssd1306_i2c_send_cmd(port, addr, SSD1306_CMD_SET_CHARGE_PUMP);
ssd1306_i2c_send_cmd(port, addr, 0x14); // Enable
// Horizontal addressing mode
ssd1306_i2c_send_cmd(port, addr, SSD1306_CMD_SET_MEMORY_MODE);
ssd1306_i2c_send_cmd(port, addr, 0x00); // Horizontal addressing
// Segment remap (0xA1 for Heltec V3 orientation)
ssd1306_i2c_send_cmd(port, addr, SSD1306_CMD_SET_SEGMENT_REMAP | 0x01);
ssd1306_i2c_send_cmd(port, addr, SSD1306_CMD_SET_SCAN_DIRECTION_REVERSED );
// COM pin configuration
ssd1306_i2c_send_cmd(port, addr, SSD1306_CMD_SET_COM_PIN_CFG);
if (configuration->verticalResolution == 64) {
ssd1306_i2c_send_cmd(port, addr, 0x12); // Alternative COM pin config for 64-row displays
} else {
ssd1306_i2c_send_cmd(port, addr, 0x02); // Sequential COM pin config for 32-row displays
}
ssd1306_i2c_send_cmd(port, addr, SSD1306_CMD_SET_CONTRAST);
ssd1306_i2c_send_cmd(port, addr, 0xCF);
ssd1306_i2c_send_cmd(port, addr, SSD1306_CMD_SET_PRECHARGE);
ssd1306_i2c_send_cmd(port, addr, 0xF1);
ssd1306_i2c_send_cmd(port, addr, SSD1306_CMD_SET_VCOMH_DESELECT);
ssd1306_i2c_send_cmd(port, addr, 0x40);
ssd1306_i2c_send_cmd(port, addr, SSD1306_CMD_SET_COLUMN_RANGE);
ssd1306_i2c_send_cmd(port, addr, 0);
ssd1306_i2c_send_cmd(port, addr, configuration->horizontalResolution - 1);
ssd1306_i2c_send_cmd(port, addr, SSD1306_CMD_SET_PAGE_RANGE);
ssd1306_i2c_send_cmd(port, addr, 0);
if (configuration->verticalResolution == 64)
ssd1306_i2c_send_cmd(port, addr, 0x7);
else if (configuration->verticalResolution == 32)
ssd1306_i2c_send_cmd(port, addr, 0x3);
else
check(false, "Not supported");
ssd1306_i2c_send_cmd(port, addr, SSD1306_CMD_DISPLAY_INVERT);
ssd1306_i2c_send_cmd(port, addr, SSD1306_CMD_STOP_SCROLL);
ssd1306_i2c_send_cmd(port, addr, SSD1306_CMD_DISPLAY_ON);
vTaskDelay(pdMS_TO_TICKS(100)); // Let display stabilize
LOG_I(TAG, "Heltec V3 display initialized successfully");
return true;
}
lvgl_port_display_cfg_t Ssd1306Display::getLvglPortDisplayConfig(esp_lcd_panel_io_handle_t ioHandle, esp_lcd_panel_handle_t panelHandle) {
return {
.io_handle = ioHandle,
.panel_handle = panelHandle,
.control_handle = nullptr,
.buffer_size = configuration->bufferSize,
.double_buffer = false,
.trans_size = 0,
.hres = configuration->horizontalResolution,
.vres = configuration->verticalResolution,
.monochrome = true, // ESP-LVGL-port handles the conversion!
.rotation = {
.swap_xy = false,
.mirror_x = false,
.mirror_y = false,
},
.color_format = LV_COLOR_FORMAT_RGB565, // Use RGB565, monochrome flag makes it work!
.flags = {
.buff_dma = false,
.buff_spiram = false,
.sw_rotate = false,
.swap_bytes = false,
.full_refresh = true,
.direct_mode = false
}
};
}
-89
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#pragma once
#include <EspLcdDisplay.h>
#include <Tactility/hal/display/DisplayDevice.h>
#include <driver/gpio.h>
#include <esp_lcd_panel_io.h>
#include <esp_lcd_types.h>
class Ssd1306Display final : public EspLcdDisplay {
public:
class Configuration {
public:
Configuration(
i2c_port_t port,
uint8_t deviceAddress,
gpio_num_t resetPin,
unsigned int horizontalResolution, // Typically 128
unsigned int verticalResolution, // 32 or 64
std::shared_ptr<tt::hal::touch::TouchDevice> touch = nullptr,
bool invertColor = false
) : port(port),
deviceAddress(deviceAddress),
resetPin(resetPin),
horizontalResolution(horizontalResolution),
verticalResolution(verticalResolution),
invertColor(invertColor),
touch(std::move(touch))
{}
i2c_port_t port;
uint8_t deviceAddress;
gpio_num_t resetPin = GPIO_NUM_NC;
unsigned int horizontalResolution;
unsigned int verticalResolution;
bool invertColor = false;
std::shared_ptr<tt::hal::touch::TouchDevice> touch;
uint32_t bufferSize = 0; // Size in pixel count. 0 means default (full screen / 8)
int gapX = 0; // Column offset
int gapY = 0; // Not used for SSD1306
};
private:
std::unique_ptr<Configuration> configuration;
bool createIoHandle(esp_lcd_panel_io_handle_t& ioHandle) override;
bool createPanelHandle(esp_lcd_panel_io_handle_t ioHandle, esp_lcd_panel_handle_t& panelHandle) override;
lvgl_port_display_cfg_t getLvglPortDisplayConfig(esp_lcd_panel_io_handle_t ioHandle, esp_lcd_panel_handle_t panelHandle) override;
public:
explicit Ssd1306Display(std::unique_ptr<Configuration> inConfiguration) :
configuration(std::move(inConfiguration))
{
assert(configuration != nullptr);
if (configuration->bufferSize == 0) {
// For monochrome displays, ESP-LVGL-PORT expects full pixel count
// It handles the monochrome conversion internally
configuration->bufferSize = configuration->horizontalResolution * configuration->verticalResolution;
}
}
std::string getName() const override { return "SSD1306"; }
std::string getDescription() const override { return "SSD1306 monochrome OLED display with ESP-LVGL-PORT monochrome support"; }
std::shared_ptr<tt::hal::touch::TouchDevice> _Nullable getTouchDevice() override { return configuration->touch; }
void setBacklightDuty(uint8_t backlightDuty) override {
// SSD1306 does not have backlight control
}
bool supportsBacklightDuty() const override { return false; }
void setGammaCurve(uint8_t index) override {
// SSD1306 does not support gamma curves
}
uint8_t getGammaCurveCount() const override { return 0; }
};
std::shared_ptr<tt::hal::display::DisplayDevice> createDisplay();
-5
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@@ -1,5 +0,0 @@
idf_component_register(
SRC_DIRS "Source"
INCLUDE_DIRS "Source"
REQUIRES Tactility driver EspLcdCompat esp_lcd_st7735
)
-3
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# ST7735
A basic ESP32 LVGL driver for ST7735 displays.
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#include "St7735Display.h"
#include <tactility/log.h>
#include <esp_lcd_panel_commands.h>
#include <esp_lcd_panel_dev.h>
#include <esp_lcd_st7735.h>
#include <esp_lvgl_port.h>
constexpr auto* TAG = "ST7735";
bool St7735Display::createIoHandle(esp_lcd_panel_io_handle_t& outHandle) {
LOG_I(TAG, "Starting");
const esp_lcd_panel_io_spi_config_t panel_io_config = {
.cs_gpio_num = configuration->csPin,
.dc_gpio_num = configuration->dcPin,
.spi_mode = 0,
.pclk_hz = configuration->pixelClockFrequency,
.trans_queue_depth = configuration->transactionQueueDepth,
.on_color_trans_done = nullptr,
.user_ctx = nullptr,
.lcd_cmd_bits = 8,
.lcd_param_bits = 8,
.cs_ena_pretrans = 0,
.cs_ena_posttrans = 0,
.flags = {
.dc_high_on_cmd = 0,
.dc_low_on_data = 0,
.dc_low_on_param = 0,
.octal_mode = 0,
.quad_mode = 0,
.sio_mode = 1,
.lsb_first = 0,
.cs_high_active = 0
}
};
if (esp_lcd_new_panel_io_spi(configuration->spiHostDevice, &panel_io_config, &outHandle) != ESP_OK) {
LOG_E(TAG, "Failed to create panel");
return false;
}
return true;
}
bool St7735Display::createPanelHandle(esp_lcd_panel_io_handle_t ioHandle, esp_lcd_panel_handle_t& panelHandle) {
const esp_lcd_panel_dev_config_t panel_config = {
.reset_gpio_num = configuration->resetPin,
.rgb_ele_order = LCD_RGB_ELEMENT_ORDER_BGR,
.data_endian = LCD_RGB_DATA_ENDIAN_LITTLE,
.bits_per_pixel = 16,
.flags = {
.reset_active_high = false
},
.vendor_config = nullptr
};
if (esp_lcd_new_panel_st7735(ioHandle, &panel_config, &panelHandle) != ESP_OK) {
LOG_E(TAG, "Failed to create panel");
return false;
}
if (esp_lcd_panel_reset(panelHandle) != ESP_OK) {
LOG_E(TAG, "Failed to reset panel");
return false;
}
if (esp_lcd_panel_init(panelHandle) != ESP_OK) {
LOG_E(TAG, "Failed to init panel");
return false;
}
if (esp_lcd_panel_invert_color(panelHandle, configuration->invertColor) != ESP_OK) {
LOG_E(TAG, "Failed to set panel to invert");
return false;
}
// Warning: it looks like LVGL rotation is broken when "gap" is set and the screen is moved to a non-default orientation
int gap_x = configuration->swapXY ? configuration->gapY : configuration->gapX;
int gap_y = configuration->swapXY ? configuration->gapX : configuration->gapY;
if (esp_lcd_panel_set_gap(panelHandle, gap_x, gap_y) != ESP_OK) {
LOG_E(TAG, "Failed to set panel gap");
return false;
}
if (esp_lcd_panel_swap_xy(panelHandle, configuration->swapXY) != ESP_OK) {
LOG_E(TAG, "Failed to swap XY ");
return false;
}
if (esp_lcd_panel_mirror(panelHandle, configuration->mirrorX, configuration->mirrorY) != ESP_OK) {
LOG_E(TAG, "Failed to set panel to mirror");
return false;
}
if (esp_lcd_panel_disp_on_off(panelHandle, true) != ESP_OK) {
LOG_E(TAG, "Failed to turn display on");
return false;
}
return true;
}
lvgl_port_display_cfg_t St7735Display::getLvglPortDisplayConfig(esp_lcd_panel_io_handle_t ioHandle, esp_lcd_panel_handle_t panelHandle) {
return lvgl_port_display_cfg_t {
.io_handle = ioHandle,
.panel_handle = panelHandle,
.control_handle = nullptr,
.buffer_size = configuration->bufferSize,
.double_buffer = false,
.trans_size = 0,
.hres = configuration->horizontalResolution,
.vres = configuration->verticalResolution,
.monochrome = false,
.rotation = {
.swap_xy = configuration->swapXY,
.mirror_x = configuration->mirrorX,
.mirror_y = configuration->mirrorY,
},
.color_format = LV_COLOR_FORMAT_RGB565,
.flags = {
.buff_dma = true,
.buff_spiram = false,
.sw_rotate = false,
.swap_bytes = true,
.full_refresh = false,
.direct_mode = false
}
};
}
/**
* Note:
* The datasheet implies this should work, but it doesn't:
* https://www.digikey.com/htmldatasheets/production/1640716/0/0/1/ILI9341-Datasheet.pdf
*
* This repo claims it only has 1 curve:
* https://github.com/brucemack/hello-ili9341
*
* I'm leaving it in as I'm not sure if it's just my hardware that's problematic.
*/
void St7735Display::setGammaCurve(uint8_t index) {
uint8_t gamma_curve;
switch (index) {
case 0:
gamma_curve = 0x01;
break;
case 1:
gamma_curve = 0x04;
break;
case 2:
gamma_curve = 0x02;
break;
case 3:
gamma_curve = 0x08;
break;
default:
return;
}
const uint8_t param[] = {
gamma_curve
};
auto io_handle = getIoHandle();
assert(io_handle != nullptr);
if (esp_lcd_panel_io_tx_param(io_handle, LCD_CMD_GAMSET, param, 1) != ESP_OK) {
LOG_E(TAG, "Failed to set gamma");
}
}
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#pragma once
#include <EspLcdDisplay.h>
#include <Tactility/hal/display/DisplayDevice.h>
#include <driver/gpio.h>
#include <driver/spi_common.h>
#include <esp_lcd_panel_io.h>
#include <esp_lcd_types.h>
#include <functional>
#include <lvgl.h>
class St7735Display final : public EspLcdDisplay {
public:
class Configuration {
public:
Configuration(
spi_host_device_t spiHostDevice,
gpio_num_t csPin,
gpio_num_t dcPin,
gpio_num_t resetPin,
unsigned int horizontalResolution,
unsigned int verticalResolution,
std::shared_ptr<tt::hal::touch::TouchDevice> touch,
bool swapXY = false,
bool mirrorX = false,
bool mirrorY = false,
bool invertColor = false,
uint32_t bufferSize = 0, // Size in pixel count. 0 means default, which is 1/10 of the screen size
int gapX = 0,
int gapY = 0
) : spiHostDevice(spiHostDevice),
csPin(csPin),
dcPin(dcPin),
resetPin(resetPin),
horizontalResolution(horizontalResolution),
verticalResolution(verticalResolution),
gapX(gapX),
gapY(gapY),
swapXY(swapXY),
mirrorX(mirrorX),
mirrorY(mirrorY),
invertColor(invertColor),
bufferSize(bufferSize),
touch(std::move(touch))
{
if (this->bufferSize == 0) {
this->bufferSize = horizontalResolution * verticalResolution / 10;
}
}
spi_host_device_t spiHostDevice;
gpio_num_t csPin;
gpio_num_t dcPin;
gpio_num_t resetPin = GPIO_NUM_NC;
unsigned int pixelClockFrequency = 27'000'000; // Hertz
size_t transactionQueueDepth = 10;
unsigned int horizontalResolution;
unsigned int verticalResolution;
int gapX;
int gapY;
bool swapXY = false;
bool mirrorX = false;
bool mirrorY = false;
bool invertColor = false;
uint32_t bufferSize = 0; // Size in pixel count. 0 means default, which is 1/10 of the screen size
std::shared_ptr<tt::hal::touch::TouchDevice> touch;
std::function<void(uint8_t)> _Nullable backlightDutyFunction = nullptr;
};
private:
std::unique_ptr<Configuration> configuration;
bool createIoHandle(esp_lcd_panel_io_handle_t& ioHandle) override;
bool createPanelHandle(esp_lcd_panel_io_handle_t ioHandle, esp_lcd_panel_handle_t& panelHandle) override;
lvgl_port_display_cfg_t getLvglPortDisplayConfig(esp_lcd_panel_io_handle_t ioHandle, esp_lcd_panel_handle_t panelHandle) override;
public:
explicit St7735Display(std::unique_ptr<Configuration> inConfiguration) :
configuration(std::move(inConfiguration)
) {}
std::string getName() const override { return "ST7735"; }
std::string getDescription() const override { return "ST7735 display"; }
std::shared_ptr<tt::hal::touch::TouchDevice> _Nullable getTouchDevice() override { return configuration->touch; }
void setBacklightDuty(uint8_t backlightDuty) override {
if (configuration->backlightDutyFunction != nullptr) {
configuration->backlightDutyFunction(backlightDuty);
}
}
bool supportsBacklightDuty() const override { return configuration->backlightDutyFunction != nullptr; }
void setGammaCurve(uint8_t index) override;
uint8_t getGammaCurveCount() const override { return 4; };
};
std::shared_ptr<tt::hal::display::DisplayDevice> createDisplay();
-5
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idf_component_register(
SRC_DIRS "Source"
INCLUDE_DIRS "Source"
REQUIRES Tactility EspLcdCompat esp_lcd_st7796 driver
)
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# ST7796
A basic ESP32 LVGL driver for ST7796 displays.
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#include "St7796Display.h"
#include <tactility/log.h>
#include <esp_lcd_panel_dev.h>
#include <esp_lcd_st7796.h>
#include <esp_lvgl_port.h>
constexpr auto* TAG = "ST7796";
bool St7796Display::createIoHandle(esp_lcd_panel_io_handle_t& ioHandle) {
const esp_lcd_panel_io_spi_config_t panel_io_config = {
.cs_gpio_num = configuration->csPin,
.dc_gpio_num = configuration->dcPin,
.spi_mode = 0,
.pclk_hz = configuration->pixelClockFrequency,
.trans_queue_depth = configuration->transactionQueueDepth,
.on_color_trans_done = nullptr,
.user_ctx = nullptr,
.lcd_cmd_bits = 8,
.lcd_param_bits = 8,
.cs_ena_pretrans = 0,
.cs_ena_posttrans = 0,
.flags = {
.dc_high_on_cmd = 0,
.dc_low_on_data = 0,
.dc_low_on_param = 0,
.octal_mode = 0,
.quad_mode = 0,
.sio_mode = 0,
.lsb_first = 0,
.cs_high_active = 0
}
};
return esp_lcd_new_panel_io_spi(configuration->spiHostDevice, &panel_io_config, &ioHandle) == ESP_OK;
}
bool St7796Display::createPanelHandle(esp_lcd_panel_io_handle_t ioHandle, esp_lcd_panel_handle_t& panelHandle) {
static const st7796_lcd_init_cmd_t lcd_init_cmds[] = {
{0x01, (uint8_t[]) {0x00}, 0, 120},
{0x11, (uint8_t[]) {0x00}, 0, 120},
{0xF0, (uint8_t[]) {0xC3}, 1, 0},
{0xF0, (uint8_t[]) {0xC3}, 1, 0},
{0xF0, (uint8_t[]) {0x96}, 1, 0},
{0x36, (uint8_t[]) {0x58}, 1, 0},
{0x3A, (uint8_t[]) {0x55}, 1, 0},
{0xB4, (uint8_t[]) {0x01}, 1, 0},
{0xB6, (uint8_t[]) {0x80, 0x02, 0x3B}, 3, 0},
{0xE8, (uint8_t[]) {0x40, 0x8A, 0x00, 0x00, 0x29, 0x19, 0xA5, 0x33}, 8, 0},
{0xC1, (uint8_t[]) {0x06}, 1, 0},
{0xC2, (uint8_t[]) {0xA7}, 1, 0},
{0xC5, (uint8_t[]) {0x18}, 1, 0},
{0xE0, (uint8_t[]) {0xF0, 0x09, 0x0b, 0x06, 0x04, 0x15, 0x2F, 0x54, 0x42, 0x3C, 0x17, 0x14, 0x18, 0x1B}, 15, 0},
{0xE1, (uint8_t[]) {0xE0, 0x09, 0x0b, 0x06, 0x04, 0x03, 0x2B, 0x43, 0x42, 0x3B, 0x16, 0x14, 0x17, 0x1B}, 15, 120},
{0xF0, (uint8_t[]) {0x3C}, 1, 0},
{0xF0, (uint8_t[]) {0x69}, 1, 0},
{0x21, (uint8_t[]) {0x00}, 1, 0},
{0x29, (uint8_t[]) {0x00}, 1, 0},
};
st7796_vendor_config_t vendor_config = {
// Uncomment these lines if use custom initialization commands
.init_cmds = lcd_init_cmds,
.init_cmds_size = sizeof(lcd_init_cmds) / sizeof(st7796_lcd_init_cmd_t),
};
const esp_lcd_panel_dev_config_t panel_config = {
.reset_gpio_num = configuration->resetPin, // Set to -1 if not use
.color_space = LCD_RGB_ELEMENT_ORDER_RGB,
.data_endian = LCD_RGB_DATA_ENDIAN_LITTLE,
.bits_per_pixel = 16,
.vendor_config = &vendor_config
};
if (esp_lcd_new_panel_st7796(ioHandle, &panel_config, &panelHandle) != ESP_OK) {
LOG_E(TAG, "Failed to create panel");
return false;
}
if (esp_lcd_panel_reset(panelHandle) != ESP_OK) {
LOG_E(TAG, "Failed to reset panel");
return false;
}
if (esp_lcd_panel_init(panelHandle) != ESP_OK) {
LOG_E(TAG, "Failed to init panel");
return false;
}
if (esp_lcd_panel_invert_color(panelHandle, configuration->invertColor) != ESP_OK) {
LOG_E(TAG, "Failed to set panel to invert");
return false;
}
if (esp_lcd_panel_swap_xy(panelHandle, configuration->swapXY) != ESP_OK) {
LOG_E(TAG, "Failed to swap XY ");
return false;
}
if (esp_lcd_panel_mirror(panelHandle, configuration->mirrorX, configuration->mirrorY) != ESP_OK) {
LOG_E(TAG, "Failed to set panel to mirror");
return false;
}
if (esp_lcd_panel_set_gap(panelHandle, configuration->gapX, configuration->gapY) != ESP_OK) {
LOG_E(TAG, "Failed to set panel gap");
return false;
}
if (esp_lcd_panel_disp_on_off(panelHandle, true) != ESP_OK) {
LOG_E(TAG, "Failed to turn display on");
return false;
}
return true;
}
lvgl_port_display_cfg_t St7796Display::getLvglPortDisplayConfig(esp_lcd_panel_io_handle_t ioHandle, esp_lcd_panel_handle_t panelHandle) {
return {
.io_handle = ioHandle,
.panel_handle = panelHandle,
.control_handle = nullptr,
.buffer_size = configuration->bufferSize,
.double_buffer = false,
.trans_size = 0,
.hres = configuration->horizontalResolution,
.vres = configuration->verticalResolution,
.monochrome = false,
.rotation = {
.swap_xy = configuration->swapXY,
.mirror_x = configuration->mirrorX,
.mirror_y = configuration->mirrorY,
},
.color_format = LV_COLOR_FORMAT_NATIVE,
.flags = {
.buff_dma = true,
.buff_spiram = false,
.sw_rotate = false,
.swap_bytes = true,
.full_refresh = false,
.direct_mode = false
}
};
}
void St7796Display::setGammaCurve(uint8_t index) {
uint8_t gamma_curve;
switch (index) {
case 0:
gamma_curve = 0x01;
break;
case 1:
gamma_curve = 0x04;
break;
case 2:
gamma_curve = 0x02;
break;
case 3:
gamma_curve = 0x08;
break;
default:
return;
}
const uint8_t param[] = {
gamma_curve
};
/*if (esp_lcd_panel_io_tx_param(ioHandle , LCD_CMD_GAMSET, param, 1) != ESP_OK) {
LOG_E(TAG, "Failed to set gamma");
}*/
}
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#pragma once
#include <Tactility/hal/display/DisplayDevice.h>
#include <driver/spi_common.h>
#include <EspLcdDisplay.h>
#include <functional>
class St7796Display final : public EspLcdDisplay {
public:
class Configuration {
public:
Configuration(
spi_host_device_t spiHostDevice,
gpio_num_t csPin,
gpio_num_t dcPin,
unsigned int horizontalResolution,
unsigned int verticalResolution,
std::shared_ptr<tt::hal::touch::TouchDevice> touch,
bool swapXY = false,
bool mirrorX = false,
bool mirrorY = false,
bool invertColor = false,
unsigned int gapX = 0,
unsigned int gapY = 0,
uint32_t bufferSize = 0 // Size in pixel count. 0 means default, which is 1/10 of the screen size
) : spiHostDevice(spiHostDevice),
csPin(csPin),
dcPin(dcPin),
horizontalResolution(horizontalResolution),
verticalResolution(verticalResolution),
swapXY(swapXY),
mirrorX(mirrorX),
mirrorY(mirrorY),
invertColor(invertColor),
gapX(gapX),
gapY(gapY),
bufferSize(bufferSize),
touch(std::move(touch)) {
if (this->bufferSize == 0) {
this->bufferSize = horizontalResolution * verticalResolution / 10;
}
}
spi_host_device_t spiHostDevice;
gpio_num_t csPin;
gpio_num_t dcPin;
gpio_num_t resetPin = GPIO_NUM_NC;
unsigned int pixelClockFrequency = 80'000'000; // Hertz
size_t transactionQueueDepth = 2;
unsigned int horizontalResolution;
unsigned int verticalResolution;
bool swapXY = false;
bool mirrorX = false;
bool mirrorY = false;
bool invertColor = false;
unsigned int gapX = 0;
unsigned int gapY = 0;
uint32_t bufferSize = 0; // Size in pixel count. 0 means default, which is 1/10 of the screen size
std::shared_ptr<tt::hal::touch::TouchDevice> touch;
std::function<void(uint8_t)> _Nullable backlightDutyFunction = nullptr;
};
private:
std::unique_ptr<Configuration> configuration;
bool createIoHandle(esp_lcd_panel_io_handle_t& ioHandle) override;
bool createPanelHandle(esp_lcd_panel_io_handle_t ioHandle, esp_lcd_panel_handle_t& panelHandle) override;
lvgl_port_display_cfg_t getLvglPortDisplayConfig(esp_lcd_panel_io_handle_t ioHandle, esp_lcd_panel_handle_t panelHandle) override;
public:
explicit St7796Display(std::unique_ptr<Configuration> inConfiguration) :
configuration(std::move(inConfiguration)
) {
assert(configuration != nullptr);
}
std::string getName() const override { return "ST7796"; }
std::string getDescription() const override { return "ST7796 display"; }
std::shared_ptr<tt::hal::touch::TouchDevice> _Nullable getTouchDevice() override { return configuration->touch; }
void setBacklightDuty(uint8_t backlightDuty) override {
if (configuration->backlightDutyFunction != nullptr) {
configuration->backlightDutyFunction(backlightDuty);
}
}
void setGammaCurve(uint8_t index) override;
uint8_t getGammaCurveCount() const override { return 4; };
bool supportsBacklightDuty() const override { return configuration->backlightDutyFunction != nullptr; }
};
std::shared_ptr<tt::hal::display::DisplayDevice> createDisplay();
@@ -1,26 +0,0 @@
Software License Agreement (BSD License)
Copyright (c) 2019 Limor Fried (Adafruit Industries)
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.
3. Neither the name of the copyright holders nor the
names of its contributors may be used to endorse or promote products
derived from this software without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ''AS IS'' AND ANY
EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE FOR ANY
DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-5
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@@ -1,5 +0,0 @@
idf_component_register(
SRC_DIRS "Source"
INCLUDE_DIRS "Source"
REQUIRES Tactility
)
-18
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@@ -1,18 +0,0 @@
Copyright 2023 Anthony DiGirolamo
Permission is hereby granted, free of charge, to any person obtaining a copy of
this software and associated documentation files (the “Software”), to deal in
the Software without restriction, including without limitation the rights to
use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
the Software, and to permit persons to whom the Software is furnished to do so,
subject to the following conditions:
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED “AS IS”, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
-5
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# TCA8418 I2C Controlled Keypad Scan IC With Integrated ESD Protection
[Datasheet](https://www.ti.com/lit/ds/symlink/tca8418.pdf?ts=1751500237439)
[Original implementation](https://github.com/AnthonyDiGirolamo/i2c-thumb-keyboard/tree/master) by Anthony DiGirolamo
[Adafruit TCA8418](https://github.com/adafruit/Adafruit_TCA8418)
-227
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#include "Tca8418.h"
namespace registers {
static const uint8_t CFG = 0x01U;
static const uint8_t KP_GPIO1 = 0x1DU;
static const uint8_t KP_GPIO2 = 0x1EU;
static const uint8_t KP_GPIO3 = 0x1FU;
static const uint8_t KEY_EVENT_A = 0x04U;
static const uint8_t KEY_EVENT_B = 0x05U;
static const uint8_t KEY_EVENT_C = 0x06U;
static const uint8_t KEY_EVENT_D = 0x07U;
static const uint8_t KEY_EVENT_E = 0x08U;
static const uint8_t KEY_EVENT_F = 0x09U;
static const uint8_t KEY_EVENT_G = 0x0AU;
static const uint8_t KEY_EVENT_H = 0x0BU;
static const uint8_t KEY_EVENT_I = 0x0CU;
static const uint8_t KEY_EVENT_J = 0x0DU;
} // namespace registers
/** From https://github.com/adafruit/Adafruit_TCA8418/blob/main/Adafruit_TCA8418.cpp */
bool Tca8418::initMatrix(uint8_t rows, uint8_t columns) {
if ((rows > 8) || (columns > 10))
return false;
if ((rows != 0) && (columns != 0)) {
// Configure the keypad matrix.
uint8_t mask = 0x00;
for (int r = 0; r < rows; r++) {
mask <<= 1;
mask |= 1;
}
writeRegister(registers::KP_GPIO1, &mask, 1);
mask = 0x00;
for (int c = 0; c < columns && c < 8; c++) {
mask <<= 1;
mask |= 1;
}
writeRegister(registers::KP_GPIO2, &mask, 1);
if (columns > 8) {
if (columns == 9)
mask = 0x01;
else
mask = 0x03;
writeRegister(registers::KP_GPIO3, &mask, 1);
}
}
return true;
}
void Tca8418::init(uint8_t numrows, uint8_t numcols) {
/*
* | ADDRESS | REGISTER NAME | REGISTER DESCRIPTION | BIT7 | BIT6 | BIT5 | BIT4 | BIT3 | BIT2 | BIT1 | BIT0 |
* |---------+---------------+----------------------+------+------+------+------+------+------+------+------|
* | 0x1D | KP_GPIO1 | Keypad/GPIO Select 1 | ROW7 | ROW6 | ROW5 | ROW4 | ROW3 | ROW2 | ROW1 | ROW0 |
* | 0x1E | KP_GPIO2 | Keypad/GPIO Select 2 | COL7 | COL6 | COL5 | COL4 | COL3 | COL2 | COL1 | COL0 |
* | 0x1F | KP_GPIO3 | Keypad/GPIO Select 3 | N/A | N/A | N/A | N/A | N/A | N/A | COL9 | COL8 |
*/
num_rows = numrows;
num_cols = numcols;
initMatrix(num_rows, num_cols);
/*
* BIT: NAME
*
* 7: AI
* Auto-increment for read and write operations; See below table for more information
* 0 = disabled
* 1 = enabled
*
* 6: GPI_E_CFG
* GPI event mode configuration
* 0 = GPI events are tracked when keypad is locked
* 1 = GPI events are not tracked when keypad is locked
*
* 5: OVR_FLOW_M
* Overflow mode
* 0 = disabled; Overflow data is lost
* 1 = enabled; Overflow data shifts with last event pushing first event out
*
* 4: INT_CFG
* Interrupt configuration
* 0 = processor interrupt remains asserted (or low) if host tries to clear interrupt while there is
* still a pending key press, key release or GPI interrupt
* 1 = processor interrupt is deasserted for 50 μs and reassert with pending interrupts
*
* 3: OVR_FLOW_IEN
* Overflow interrupt enable
* 0 = disabled; INT is not asserted if the FIFO overflows
* 1 = enabled; INT becomes asserted if the FIFO overflows
*
* 2: K_LCK_IEN
* Keypad lock interrupt enable
* 0 = disabled; INT is not asserted after a correct unlock key sequence
* 1 = enabled; INT becomes asserted after a correct unlock key sequence
*
* 1: GPI_IEN
* GPI interrupt enable to host processor
* 0 = disabled; INT is not asserted for a change on a GPI
* 1 = enabled; INT becomes asserted for a change on a GPI
*
* 0: KE_IEN
* Key events interrupt enable to host processor
* 0 = disabled; INT is not asserted when a key event occurs
* 1 = enabled; INT becomes asserted when a key event occurs
*/
// 10111001 xB9 -- fifo overflow enabled
// 10011001 x99 -- fifo overflow disabled
writeRegister8(registers::CFG, 0x99);
clear_released_list();
clear_pressed_list();
}
bool Tca8418::update() {
last_update_micros = this_update_micros;
uint8_t key_down, key_event, key_row, key_col;
key_event = get_key_event();
// TODO: read gpio R7/R6 status? 0x14 bits 7&6
// read(0x14, &new_keycode)
// TODO: use tick function to get an update delta time
this_update_micros = 0;
delta_micros = this_update_micros - last_update_micros;
if (key_event > 0) {
key_down = (key_event & 0x80);
uint16_t buffer = key_event;
buffer &= 0x7F;
buffer--;
key_row = buffer / 10;
key_col = buffer % 10;
// always clear the released list
clear_released_list();
if (key_down) {
add_pressed_key(key_row, key_col);
// TODO reject ghosts (assume multiple key presses with the same hold time are ghosts.)
} else {
add_released_key(key_row, key_col);
remove_pressed_key(key_row, key_col);
}
return true;
}
// Increment hold times for pressed keys
for (int i = 0; i < pressed_key_count; i++) {
pressed_list[i].hold_time += delta_micros;
}
return false;
}
void Tca8418::add_pressed_key(uint8_t row, uint8_t col) {
if (pressed_key_count >= KEY_EVENT_LIST_SIZE)
return;
pressed_list[pressed_key_count].row = row;
pressed_list[pressed_key_count].col = col;
pressed_list[pressed_key_count].hold_time = 0;
pressed_key_count++;
}
void Tca8418::add_released_key(uint8_t row, uint8_t col) {
if (released_key_count >= KEY_EVENT_LIST_SIZE)
return;
released_key_count++;
released_list[0].row = row;
released_list[0].col = col;
}
void Tca8418::remove_pressed_key(uint8_t row, uint8_t col) {
if (pressed_key_count == 0)
return;
// delete the pressed key
for (int i = 0; i < pressed_key_count; i++) {
if (pressed_list[i].row == row &&
pressed_list[i].col == col) {
// shift remaining keys left one index
for (int j = i; i < pressed_key_count; j++) {
if (j == KEY_EVENT_LIST_SIZE - 1)
break;
pressed_list[j].row = pressed_list[j + 1].row;
pressed_list[j].col = pressed_list[j + 1].col;
pressed_list[j].hold_time = pressed_list[j + 1].hold_time;
}
break;
}
}
pressed_key_count--;
}
void Tca8418::clear_pressed_list() {
for (int i = 0; i < KEY_EVENT_LIST_SIZE; i++) {
pressed_list[i].row = 255;
pressed_list[i].col = 255;
}
pressed_key_count = 0;
}
void Tca8418::clear_released_list() {
for (int i = 0; i < KEY_EVENT_LIST_SIZE; i++) {
released_list[i].row = 255;
released_list[i].col = 255;
}
released_key_count = 0;
}
uint8_t Tca8418::get_key_event() {
uint8_t new_keycode = 0;
readRegister8(registers::KEY_EVENT_A, new_keycode);
return new_keycode;
}
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@@ -1,72 +0,0 @@
#pragma once
#include <array>
#include <Tactility/hal/i2c/I2cDevice.h>
constexpr auto TCA8418_ADDRESS = 0x34U;
constexpr auto KEY_EVENT_LIST_SIZE = 10;
/**
* See https://www.ti.com/lit/ds/symlink/tca8418.pdf
*/
class Tca8418 final : public tt::hal::i2c::I2cDevice {
uint8_t tca8418_address;
uint32_t last_update_micros;
uint32_t this_update_micros;
uint8_t new_pressed_keys_count;
void clear_released_list();
void clear_pressed_list();
void add_pressed_key(uint8_t row, uint8_t col);
void add_released_key(uint8_t row, uint8_t col);
void remove_pressed_key(uint8_t row, uint8_t col);
void write(uint8_t register_address, uint8_t data);
bool read(uint8_t register_address, uint8_t* data);
bool initMatrix(uint8_t rows, uint8_t columns);
public:
struct PressedKey {
uint8_t row;
uint8_t col;
uint32_t hold_time;
};
struct ReleasedKey {
uint8_t row;
uint8_t col;
};
std::string getName() const final { return "TCA8418"; }
std::string getDescription() const final { return "I2C-controlled keyboard scan IC"; }
explicit Tca8418(::Device* controller) : I2cDevice(controller, TCA8418_ADDRESS) {
delta_micros = 0;
last_update_micros = 0;
this_update_micros = 0;
}
~Tca8418() {}
uint8_t num_rows;
uint8_t num_cols;
uint32_t delta_micros;
std::array<PressedKey, KEY_EVENT_LIST_SIZE> pressed_list;
std::array<ReleasedKey, KEY_EVENT_LIST_SIZE> released_list;
uint8_t pressed_key_count;
uint8_t released_key_count;
void init(uint8_t numrows, uint8_t numcols);
bool update();
uint8_t get_key_event();
bool button_pressed(uint8_t row, uint8_t button_bit_position);
bool button_released(uint8_t row, uint8_t button_bit_position);
bool button_held(uint8_t row, uint8_t button_bit_position);
};
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# Prerequisites
*.d
# Object files
*.o
*.ko
*.obj
*.elf
# Linker output
*.ilk
*.map
*.exp
# Precompiled Headers
*.gch
*.pch
# Libraries
*.lib
*.a
*.la
*.lo
# Shared objects (inc. Windows DLLs)
*.dll
*.so
*.so.*
*.dylib
# Executables
*.exe
*.out
*.app
*.i*86
*.x86_64
*.hex
# Debug files
*.dSYM/
*.su
*.idb
*.pdb
# Kernel Module Compile Results
*.mod*
*.cmd
.tmp_versions/
modules.order
Module.symvers
Mkfile.old
dkms.conf
.vscode/
.idea/
build/
cmake-build-debug-esp-idf/
-7
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@@ -1,7 +0,0 @@
file(GLOB_RECURSE SOURCES src/*.c)
idf_component_register(
SRCS ${SOURCES}
INCLUDE_DIRS include
REQUIRES driver
)
-17
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@@ -1,17 +0,0 @@
menu "Example Configuration"
config I2C_MASTER_SCL
int "SCL GPIO Num"
default 6 if IDF_TARGET_ESP32C3
default 19 if IDF_TARGET_ESP32 || IDF_TARGET_ESP32S2 || IDF_TARGET_ESP32S3
help
GPIO number for I2C Master clock line.
config I2C_MASTER_SDA
int "SDA GPIO Num"
default 5 if IDF_TARGET_ESP32C3
default 18 if IDF_TARGET_ESP32 || IDF_TARGET_ESP32S2 || IDF_TARGET_ESP32S3
help
GPIO number for I2C Master data line.
endmenu
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@@ -1,21 +0,0 @@
MIT License
Copyright (c) 2022 Victor Hogeweij
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.
-8
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@@ -1,8 +0,0 @@
#
# This is a project Makefile. It is assumed the directory this Makefile resides in is a
# project subdirectory.
#
PROJECT_NAME := i2c-simple
include $(IDF_PATH)/make/project.mk
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@@ -1,49 +0,0 @@
# I2C Simple Example
(See the README.md file in the upper level 'examples' directory for more information about examples.)
## Overview
This example demonstrates basic usage of I2C driver by reading and writing from a I2C connected sensor:
If you have a new I2C application to go (for example, read the temperature data from external sensor with I2C interface), try this as a basic template, then add your own code.
## How to use example
### Hardware Required
To run this example, you should have one ESP32, ESP32-S or ESP32-C based development board as well as a MPU9250. MPU9250 is a inertial measurement unit, which contains a accelerometer, gyroscope as well as a magnetometer, for more information about it, you can read the [PDF](https://invensense.tdk.com/wp-content/uploads/2015/02/PS-MPU-9250A-01-v1.1.pdf) of this sensor.
#### Pin Assignment:
**Note:** The following pin assignments are used by default, you can change these in the `menuconfig` .
| | SDA | SCL |
| ---------------- | -------------- | -------------- |
| ESP I2C Master | I2C_MASTER_SDA | I2C_MASTER_SCL |
| MPU9250 Sensor | SDA | SCL |
For the actual default value of `I2C_MASTER_SDA` and `I2C_MASTER_SCL` see `Example Configuration` in `menuconfig`.
**Note: ** Theres no need to add an external pull-up resistors for SDA/SCL pin, because the driver will enable the internal pull-up resistors.
### Build and Flash
Enter `idf.py -p PORT flash monitor` to build, flash and monitor the project.
(To exit the serial monitor, type ``Ctrl-]``.)
See the [Getting Started Guide](https://docs.espressif.com/projects/esp-idf/en/latest/get-started/index.html) for full steps to configure and use ESP-IDF to build projects.
## Example Output
```bash
I (328) i2c-simple-example: I2C initialized successfully
I (338) i2c-simple-example: WHO_AM_I = 71
I (338) i2c-simple-example: I2C unitialized successfully
```
## Troubleshooting
(For any technical queries, please open an [issue](https://github.com/espressif/esp-idf/issues) on GitHub. We will get back to you as soon as possible.)
-3
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@@ -1,3 +0,0 @@
#
# Main Makefile. This is basically the same as a component makefile .
#
-6
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@@ -1,6 +0,0 @@
# The following lines of boilerplate have to be in your project's CMakeLists
# in this exact order for cmake to work correctly
cmake_minimum_required(VERSION 3.5)
set(EXTRA_COMPONENT_DIRS read)
include($ENV{IDF_PATH}/tools/cmake/project.cmake)
project(TCA9534_Examples)
@@ -1,59 +0,0 @@
#include "esp_log.h"
#include "driver/i2c.h"
#include "TCA9534.h"
#define I2C_MASTER_SCL_IO CONFIG_I2C_MASTER_SCL /*!< GPIO number used for I2C master clock */
#define I2C_MASTER_SDA_IO CONFIG_I2C_MASTER_SDA /*!< GPIO number used for I2C master data */
#define I2C_MASTER_NUM 0 /*!< I2C master i2c port number, the number of i2c peripheral interfaces available will depend on the chip */
#define I2C_MASTER_FREQ_HZ 400000 /*!< I2C master clock frequency */
#define I2C_MASTER_TX_BUF_DISABLE 0 /*!< I2C master doesn't need buffer */
#define I2C_MASTER_RX_BUF_DISABLE 0 /*!< I2C master doesn't need buffer */
/**
* @brief i2c master initialization
*/
static esp_err_t i2c_master_init(i2c_config_t *conf) {
int i2c_master_port = I2C_MASTER_NUM;
conf->mode = I2C_MODE_MASTER;
conf->master.clk_speed = I2C_MASTER_FREQ_HZ;
conf->sda_io_num = I2C_MASTER_SDA_IO;
conf->scl_io_num = I2C_MASTER_SCL_IO;
conf->sda_pullup_en = GPIO_PULLUP_ENABLE;
conf->scl_pullup_en = GPIO_PULLUP_ENABLE;
i2c_param_config(i2c_master_port, conf);
return i2c_driver_install(i2c_master_port, conf->mode, I2C_MASTER_RX_BUF_DISABLE, I2C_MASTER_TX_BUF_DISABLE, 0);
}
static const char *TAG = "TCA9534-Example";
void app_main(void) {
TCA9534_IO_EXP IO_EXP1;
esp_err_t status = i2c_master_init(&IO_EXP1.i2c_conf);
if (status == ESP_OK) {
ESP_LOGI(TAG, "I2C initialized successfully");
IO_EXP1.I2C_ADDR = 0b0100000;
IO_EXP1.i2c_master_port = I2C_MASTER_NUM;
set_tca9534_io_pin_direction(IO_EXP1, TCA9534_IO0, TCA9534_INPUT);
set_tca9534_io_pin_direction(IO_EXP1, TCA9534_IO1, TCA9534_OUTPUT);
int pin_state = 0;
while (1) {
pin_state = get_io_pin_input_status(IO_EXP1, TCA9534_IO0);
if (pin_state == -1) {
ESP_LOGE(TAG, "Cannot get pin status from TCA9534");
break;
}
set_tca9534_io_pin_output_state(IO_EXP1, TCA9534_IO1, pin_state);
vTaskDelay(100 / portTICK_RATE_MS);
}
ESP_ERROR_CHECK(i2c_driver_delete(I2C_MASTER_NUM));
ESP_LOGI(TAG, "I2C unitialized successfully");
}
}
-170
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@@ -1,170 +0,0 @@
#ifndef TCA9534_IDF_TCA9534_H
#define TCA9534_IDF_TCA9534_H
#include <driver/i2c.h>
#include <driver/gpio.h>
#define TCA9534_ERROR -1
#ifdef __cplusplus
extern "C" {
#endif
/**
* @brief TCA9534 IO Pins mapping
*/
typedef enum {
TCA9534_IO0,
TCA9534_IO1,
TCA9534_IO2,
TCA9534_IO3,
TCA9534_IO4,
TCA9534_IO5,
TCA9534_IO6,
TCA9534_IO7
} TCA9534_PINS;
/**
* @brief TCA9534 Port direction parameters
*/
typedef enum {
TCA9534_OUTPUT,
TCA9534_INPUT
} TCA9534_PORT_DIRECTION;
/**
* @brief TCA9534 initialization parameters
*/
typedef struct {
uint8_t I2C_ADDR;
int i2c_master_port;
//Only when mode is set to interrupt, otherwise it won't be used..
gpio_num_t interrupt_pin;
TaskHandle_t* interrupt_task;
} TCA9534_IO_EXP;
/**
* @brief Setup interrupts using the builtin IO_EXP_INT pin of the tca9534 and interrupt handler+task
* @param io_exp which contains the gpio pin where IO_EXP_INT is connected(interrupt_pin)
* And optionally contains the task to run when interrupt triggered (interrupt_task) if not defined the
* default handler will be used.
*/
void setup_tca9534_interrupt_handler(TCA9534_IO_EXP* io_exp);
/**
* @brief Get the current input state of the specified input pin (1 or 0)
*
* @param io_exp The io expander instance to read from or write to
* @param io_pin The io expander pin to read the state from
*
* @return
* - 0 Success! Pin is Low
* - 1 Success! Pin is High
* - TCA9534_ERROR(-1) Error! Something went wrong in the process of reading the io expander
*/
int16_t get_io_pin_input_status(TCA9534_IO_EXP* io_exp, TCA9534_PINS io_pin);
/**
* @brief Get the current input state of all the io expander pins
*
* @param io_exp The io expander instance to read from or write to
*
* @return
* - 0x00 - 0xFF Success! Dump of input register, 1 bit is equal to 1 of the physical pins (Lower 8 bits of 16 bits result)
* - TCA9534_ERROR(-1) Error! Something went wrong in the process of reading the io expander
*/
int16_t get_tca9534_all_io_pin_input_status(TCA9534_IO_EXP* io_exp);
/**
* @brief Get the current direction of all the io expander pins
*
* @param io_exp The io expander instance to read from or write to
*
* @return
* - 0x00 - 0xFF Success! Dump of configuration register, 1 bit is equal to 1 of the physical pins (Lower 8 bits of 16 bits result)
* - TCA9534_ERROR(-1) Error! Something went wrong in the process of reading the io expander
*/
int16_t get_all_io_pin_direction(TCA9534_IO_EXP* io_exp);
/**
* @brief Get the current polarity inversion state of all the io expander pins
*
* @param io_exp The io expander instance to read from or write to
*
* @return
* - 0x00 - 0xFF Success! Dump of configuration register, 1 bit is equal to 1 of the physical pins (Lower 8 bits of 16 bits result)
* - TCA9534_ERROR(-1) Error! Something went wrong in the process of reading the io expander
*/
int16_t get_all_io_polarity_inversion(TCA9534_IO_EXP* io_exp);
/**
* @brief Get the current direction of the specified io expander pin
*
* @param io_exp The io expander instance to read from or write to
* @param io_pin The io expander pin to read polarity inversion from
*
* @return
* - 0 Success! Pin is Not inverted
* - 1 Success! Pin is Inverted
* - TCA9534_ERROR(-1) Error! Something went wrong in the process of reading the io expander
*/
int16_t get_io_pin_polarity_inversion(TCA9534_IO_EXP* io_exp, TCA9534_PINS io_pin);
/**
* @brief Get the current direction of the specified physical pin (0 means OUTPUT or 1 means INPUT)
*
* @param io_exp The io expander instance to read from or write to
* @param io_pin The io expander pin to read the state from
*
* @return
* - 0 Success! Pin is OUTPUT
* - 1 Success! Pin is INPUT
* - TCA9534_ERROR(-1) Error! Something went wrong in the process of reading the io expander
*/
int16_t get_io_pin_direction(TCA9534_IO_EXP* io_exp, TCA9534_PINS io_pin);
/**
* @brief Sets all physical pins of the io expander to a specified direction (INPUT or OUTPUT)
*
* @param io_exp The io expander instance to read from or write to
* @param properties The pin direction to be set (INPUT or OUTPUT)
*
* @return
* - ESP_OK Success!
* - ESP_ERR Error!
*/
esp_err_t set_all_tca9534_io_pins_direction(TCA9534_IO_EXP* io_exp, TCA9534_PORT_DIRECTION properties);
/**
* @brief Set physical pin of the io expander to a specified direction (INPUT or OUTPUT)
*
* @param io_exp The io expander instance to read from or write to
* @param io_pin The io expander physical pin to be set
* @param properties The pin direction to be set (INPUT or OUTPUT)
*
* @return
* - ESP_OK Success!
* - ESP_ERR Error!
*/
esp_err_t set_tca9534_io_pin_direction(TCA9534_IO_EXP* io_exp, TCA9534_PINS io_pin, TCA9534_PORT_DIRECTION properties);
/**
* @brief Set physical pin of the io expander to an specified output state (HIGH(1) or LOW(0))
*
* @param io_exp The io expander instance to read from or write to
* @param io_pin The io expander physical pin to be set
* @param state The pin state to be set (1 or 0)
*
* @return
* - ESP_OK Success!
* - ESP_ERR Error!
*
* @note Pin output state can be inverted with the inversion register
*/
esp_err_t set_tca9534_io_pin_output_state(TCA9534_IO_EXP* io_exp, TCA9534_PINS io_pin, uint8_t state);
#ifdef __cplusplus
}
#endif
#endif //TCA9534_IDF_TCA9534_H
-151
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@@ -1,151 +0,0 @@
#include "TCA9534.h"
#include "driver/i2c.h"
#include "esp_log.h"
#include <rom/gpio.h>
#define I2C_MASTER_TIMEOUT_MS 1000
#define TCA9534_LIB_TAG "TCA9534"
#define TCA9534_IO_NUM 8
#ifdef __cplusplus
extern "C" {
#endif
/**
* @brief TCA9534 Internal configuration and pin registers
*/
typedef enum {
TCA9534_REG_INPUT_PORT,
TCA9534_REG_OUTPUT_PORT,
TCA9534_REG_POLARITY_INVERSION,
TCA9534_REG_CONFIGURATION
} TCA9534_REGISTER;
/**
* @brief Default TCA9534 interrupt task
*/
void TCA9534_default_interrupt_task(void * pvParameters){
ESP_LOGW(TCA9534_LIB_TAG, "No interrupt task defined! Using standard TCA9523 interrupt task!");
TCA9534_IO_EXP* io_exp = (TCA9534_IO_EXP*) pvParameters;
uint32_t io_num;
while(1){
if(xTaskNotifyWait(0,0,&io_num,portTICK_PERIOD_MS) == pdTRUE) {
uint8_t input_status = get_tca9534_all_io_pin_input_status(io_exp);
printf("Current input status (pin : status):\n");
for (uint8_t i = 0; i < TCA9534_IO_NUM; i++)
printf("P%d : %d\n", i, (input_status & (1<<i)) == (1 << i));
}
}
}
/**
* @brief TCA9534 interrupt handler
*/
static void IRAM_ATTR TCA9534_interrupt_handler(void *args){
TCA9534_IO_EXP* io_exp = (TCA9534_IO_EXP*) args;
xTaskNotifyFromISR(*io_exp->interrupt_task, 0, eNoAction, 0);
}
/**
* @brief Setup TCA9534 interrupts
*/
void setup_tca9534_interrupt_handler(TCA9534_IO_EXP* io_exp){
if(io_exp->interrupt_task == NULL){
xTaskCreate(
TCA9534_default_interrupt_task, /* Function that implements the task. */
"NAME", /* Text name for the task. */
2048, /* Stack size in words, not bytes. */
( void * ) io_exp, /* Parameter passed into the task. */
10,/* Priority at which the task is created. */
io_exp->interrupt_task); /* Used to pass out the created task's handle. */
}
gpio_pad_select_gpio(GPIO_NUM_26);
gpio_set_direction(GPIO_NUM_26,GPIO_MODE_INPUT);
gpio_intr_enable(GPIO_NUM_26);
gpio_set_intr_type(io_exp->interrupt_pin, GPIO_INTR_NEGEDGE);
gpio_install_isr_service(0);
gpio_isr_handler_add(io_exp->interrupt_pin, TCA9534_interrupt_handler, (void *)io_exp);
}
esp_err_t write_tca9534_reg(TCA9534_IO_EXP* io_exp, TCA9534_REGISTER cmd, uint8_t data) {
uint8_t write_buffer[2] = {cmd, data};
return i2c_master_write_to_device(io_exp->i2c_master_port, io_exp->I2C_ADDR, write_buffer,
sizeof(write_buffer), I2C_MASTER_TIMEOUT_MS / portTICK_PERIOD_MS);
}
esp_err_t read_tca9534_reg(TCA9534_IO_EXP* io_exp, TCA9534_REGISTER cmd, uint8_t *read_buff) {
uint8_t reg = cmd;
return i2c_master_write_read_device(io_exp->i2c_master_port, io_exp->I2C_ADDR, &reg,
1, read_buff, 1, I2C_MASTER_TIMEOUT_MS / portTICK_PERIOD_MS);
}
int16_t get_tca9534_all_io_pin_input_status(TCA9534_IO_EXP* io_exp) {
uint8_t result = 0;
esp_err_t status = read_tca9534_reg(io_exp, TCA9534_REG_INPUT_PORT, &result);
return (status == ESP_OK) ? result : TCA9534_ERROR;
}
int16_t get_io_pin_input_status(TCA9534_IO_EXP* io_exp, TCA9534_PINS io_pin) {
int16_t result = get_tca9534_all_io_pin_input_status(io_exp);
if (result != TCA9534_ERROR)
result &= (1 << io_pin);
return (result == (1<< io_pin));
}
int16_t get_all_io_pin_direction(TCA9534_IO_EXP* io_exp) {
uint8_t result;
esp_err_t status = read_tca9534_reg(io_exp, TCA9534_REG_CONFIGURATION, &result);
return (status == ESP_OK) ? result : TCA9534_ERROR;
}
int16_t get_io_pin_direction(TCA9534_IO_EXP* io_exp, TCA9534_PINS io_pin) {
int16_t result = get_all_io_pin_direction(io_exp);
if (result != TCA9534_ERROR)
result &= (1 << io_pin);
return (result == (1<< io_pin));
}
int16_t get_all_io_polarity_inversion(TCA9534_IO_EXP* io_exp) {
uint8_t result;
esp_err_t status = read_tca9534_reg(io_exp, TCA9534_REG_POLARITY_INVERSION, &result);
return (status == ESP_OK) ? result : TCA9534_ERROR;
}
int16_t get_io_pin_polarity_inversion(TCA9534_IO_EXP* io_exp, TCA9534_PINS io_pin) {
int16_t result = get_all_io_polarity_inversion(io_exp);
if (result != TCA9534_ERROR)
result &= (1 << io_pin);
return (result == (1<< io_pin));
}
esp_err_t set_all_tca9534_io_pins_direction(TCA9534_IO_EXP* io_exp, TCA9534_PORT_DIRECTION properties) {
uint8_t dir = (properties == TCA9534_OUTPUT) ? 0x00 : 0xFF;
esp_err_t status = write_tca9534_reg(io_exp, TCA9534_REG_CONFIGURATION, dir);
return status;
}
esp_err_t set_tca9534_io_pin_direction(TCA9534_IO_EXP* io_exp, TCA9534_PINS io_pin, TCA9534_PORT_DIRECTION properties) {
uint8_t port_status = 0;
esp_err_t status = read_tca9534_reg(io_exp, TCA9534_REG_CONFIGURATION, &port_status);
port_status = (properties != TCA9534_OUTPUT) ? (port_status | (1 << io_pin)) : (port_status & ~(1 << io_pin));
status |= write_tca9534_reg(io_exp, TCA9534_REG_CONFIGURATION, port_status);
return status;
}
esp_err_t set_tca9534_io_pin_output_state(TCA9534_IO_EXP* io_exp, TCA9534_PINS io_pin, uint8_t state) {
uint8_t port_status = 0;
esp_err_t status = read_tca9534_reg(io_exp, TCA9534_REG_OUTPUT_PORT, &port_status);
port_status = (state != 0) ? (port_status | (1 << io_pin)) : (port_status & ~(1 << io_pin));
status |= write_tca9534_reg(io_exp, TCA9534_REG_OUTPUT_PORT, port_status);
return status;
}
#ifdef __cplusplus
}
#endif
+11
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@@ -0,0 +1,11 @@
cmake_minimum_required(VERSION 3.20)
include("${CMAKE_CURRENT_LIST_DIR}/../../Buildscripts/module.cmake")
file(GLOB_RECURSE SOURCE_FILES "source/*.c*")
tactility_add_module(axs15231b-module
SRCS ${SOURCE_FILES}
INCLUDE_DIRS include/
REQUIRES TactilityKernel platform-esp32 esp_lcd_axs15231b driver
)
@@ -0,0 +1,195 @@
Apache License
==============
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### APPENDIX: How to apply the Apache License to your work
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@@ -0,0 +1,45 @@
description: AXS15231B touch controller (I2C side of the combined display+touch chip)
include: ["i2c-device.yaml"]
compatible: "axs,axs15231b-touch"
bus: i2c
properties:
x-max:
type: int
required: true
description: Maximum X coordinate reported by the controller (typically the panel's horizontal resolution)
y-max:
type: int
required: true
description: Maximum Y coordinate reported by the controller (typically the panel's vertical resolution)
swap-xy:
type: boolean
default: false
description: Swap the X and Y axes
mirror-x:
type: boolean
default: false
description: Mirror the X axis
mirror-y:
type: boolean
default: false
description: Mirror the Y axis
pin-reset:
type: phandles
default: GPIO_PIN_SPEC_NONE
description: Reset GPIO pin
pin-interrupt:
type: phandles
default: GPIO_PIN_SPEC_NONE
description: Interrupt GPIO pin
reset-active-high:
type: boolean
default: false
description: Whether the reset pin is active high
interrupt-active-high:
type: boolean
default: false
description: Whether the interrupt pin is active high
@@ -0,0 +1,75 @@
description: >
AXS15231B display panel (QSPI interface). Combined display+touch controller chip - see
axs,axs15231b-touch for the touch side, which sits on a separate I2C bus and is modeled as an
independent devicetree node.
compatible: "axs,axs15231b"
bus: spi
properties:
horizontal-resolution:
type: int
required: true
description: Horizontal resolution in pixels
vertical-resolution:
type: int
required: true
description: Vertical resolution in pixels
mirror-x:
type: boolean
default: false
description: Mirror the X axis
mirror-y:
type: boolean
default: false
description: Mirror the Y axis
invert-color:
type: boolean
default: false
description: Invert the panel's color output
bgr-order:
type: boolean
default: false
description: Use BGR element order instead of RGB
pixel-clock-hz:
type: int
default: 40000000
description: QSPI pixel clock frequency in Hz
transaction-queue-depth:
type: int
default: 10
description: Size of the internal SPI transaction queue
pin-reset:
type: phandles
default: GPIO_PIN_SPEC_NONE
description: Reset GPIO pin
reset-active-high:
type: boolean
default: false
description: Whether the reset pin is active high
pin-te:
type: phandles
default: GPIO_PIN_SPEC_NONE
description: Optional Tearing-Effect GPIO pin. When set, draw_bitmap waits (best-effort, up
to 20ms) for a V-blank pulse on this pin before starting each transfer, to reduce visible
tearing. Omit to skip TE sync entirely.
init-sequence:
type: array
element-type: uint8_t
description: >
Custom vendor bring-up sequence, flattened into bytes as a run of
[cmd, data-length, delay-ms, data-length bytes of data...] entries. Omit to use the
AXS15231B component's own built-in default sequence.
requires-full-frame:
type: boolean
default: false
description: >
Whether this panel needs full-frame-only draws (DISPLAY_CAPABILITY_REQUIRES_FULL_FRAME) -
a sub-region draw_bitmap() call desyncs this chip's row auto-increment counter, since its
QSPI command set has no row-address command.
It's not certain that this is required for all driver implementations, so it's a config option for now.
backlight:
type: phandle
default: "NULL"
description: Optional reference to this display's backlight device
+3
View File
@@ -0,0 +1,3 @@
dependencies:
- TactilityKernel
bindings: bindings
@@ -0,0 +1,14 @@
// SPDX-License-Identifier: Apache-2.0
#pragma once
#include <tactility/module.h>
#ifdef __cplusplus
extern "C" {
#endif
extern struct Module axs15231b_module;
#ifdef __cplusplus
}
#endif
@@ -0,0 +1,10 @@
// SPDX-License-Identifier: Apache-2.0
#pragma once
#include <tactility/bindings/bindings.h>
#include <drivers/axs15231b_display.h>
// The devicetree compiler derives the expected config typedef name from the compatible
// string's suffix (e.g. "axs,axs15231b" -> axs15231b_config_dt), not from the node name or
// driver name, so the tag here must match that exactly.
DEFINE_DEVICETREE(axs15231b, struct Axs15231bDisplayConfig)
@@ -0,0 +1,10 @@
// SPDX-License-Identifier: Apache-2.0
#pragma once
#include <tactility/bindings/bindings.h>
#include <drivers/axs15231b_touch.h>
// The devicetree compiler derives the expected config typedef name from the compatible
// string's suffix (e.g. "axs,axs15231b-touch" -> axs15231b_touch_config_dt), not from the node
// name or driver name, so the tag here must match that exactly.
DEFINE_DEVICETREE(axs15231b_touch, struct Axs15231bTouchConfig)
@@ -0,0 +1,48 @@
// SPDX-License-Identifier: Apache-2.0
#pragma once
#ifdef __cplusplus
extern "C" {
#endif
#include <stdint.h>
#include <stdbool.h>
#include <tactility/device.h>
#include <tactility/drivers/gpio.h>
struct Axs15231bDisplayConfig {
uint16_t horizontal_resolution;
uint16_t vertical_resolution;
bool mirror_x;
bool mirror_y;
bool invert_color;
bool bgr_order;
uint32_t pixel_clock_hz;
uint32_t transaction_queue_depth;
// Reset pin. GPIO_PIN_SPEC_NONE means no reset line is wired up (matches the original
// deprecated-HAL config for the boards using this chip so far).
struct GpioPinSpec pin_reset;
bool reset_active_high;
// Optional Tearing-Effect GPIO pin. When set (not GPIO_PIN_SPEC_NONE), draw_bitmap() waits
// (best-effort, up to 20ms) for a V-blank pulse on this pin before starting each transfer, to
// reduce visible tearing. GPIO_PIN_SPEC_NONE skips TE sync entirely.
struct GpioPinSpec pin_te;
// Custom vendor init sequence, flattened as bytes: a run of
// [cmd, data_len, delay_ms, data_len bytes of data...] entries. NULL/0 falls back to the
// AXS15231B component's own built-in default sequence.
const uint8_t* init_sequence;
uint32_t init_sequence_length;
bool requires_full_frame;
// Optional reference to this display's backlight device, NULL if none.
struct Device* backlight;
};
#ifdef __cplusplus
}
#endif
@@ -0,0 +1,31 @@
// SPDX-License-Identifier: Apache-2.0
#pragma once
#ifdef __cplusplus
extern "C" {
#endif
#include <stdint.h>
#include <stdbool.h>
#include <tactility/device.h>
#include <tactility/drivers/gpio.h>
struct Axs15231bTouchConfig {
// Devicetree address hint. Unused by the driver: the AXS15231B always sits at a fixed
// I2C address (see ESP_LCD_TOUCH_IO_I2C_AXS15231B_ADDRESS in esp_lcd_axs15231b.h).
uint8_t address;
uint16_t x_max;
uint16_t y_max;
bool swap_xy;
bool mirror_x;
bool mirror_y;
struct GpioPinSpec pin_reset;
struct GpioPinSpec pin_interrupt;
bool reset_active_high;
bool interrupt_active_high;
};
#ifdef __cplusplus
}
#endif
@@ -0,0 +1,501 @@
// SPDX-License-Identifier: Apache-2.0
#include <drivers/axs15231b_display.h>
#include <axs15231b_module.h>
#include <tactility/check.h>
#include <tactility/device.h>
#include <tactility/driver.h>
#include <tactility/drivers/display.h>
#include <tactility/drivers/esp32_spi.h>
#include <tactility/drivers/spi_controller.h>
#include <tactility/error.h>
#include <tactility/log.h>
#include <esp_err.h>
#include <esp_lcd_axs15231b.h>
#include <esp_lcd_io_spi.h>
#include <esp_lcd_panel_io.h>
#include <esp_lcd_panel_ops.h>
#include <driver/gpio.h>
#include <freertos/semphr.h>
#include <cstdlib>
#define TAG "AXS15231B"
#define GET_CONFIG(device) (static_cast<const Axs15231bDisplayConfig*>((device)->config))
struct Axs15231bDisplayInternal {
esp_lcd_panel_io_handle_t io_handle;
esp_lcd_panel_handle_t panel_handle;
// Given from ISR context by on_color_trans_done() once a queued transfer physically
// completes. draw_bitmap() blocks on this so it can honor DisplayApi's synchronous contract
// (see lvgl_display.c: the caller reuses/overwrites the color buffer as soon as draw_bitmap
// returns) - esp_lcd_panel_draw_bitmap() itself only queues the transfer and returns early.
SemaphoreHandle_t draw_done_semaphore;
// Non-null only when a TE (Tearing-Effect) pin is configured. Signaled by te_isr_handler()
// on each rising edge, so draw_bitmap() can wait for the next V-blank before transferring.
SemaphoreHandle_t te_semaphore;
bool te_isr_installed;
// Whether we're the one who called gpio_install_isr_service() - if so, we must be the one to
// uninstall it, but only if no other pin on the system is still relying on it.
bool te_isr_service_installed_by_us;
axs15231b_lcd_init_cmd_t* parsed_init_cmds;
};
static bool IRAM_ATTR on_color_trans_done(esp_lcd_panel_io_handle_t, esp_lcd_panel_io_event_data_t*, void* user_ctx) {
auto* internal = static_cast<Axs15231bDisplayInternal*>(user_ctx);
BaseType_t high_task_woken = pdFALSE;
xSemaphoreGiveFromISR(internal->draw_done_semaphore, &high_task_woken);
return high_task_woken == pdTRUE;
}
static void IRAM_ATTR te_isr_handler(void* arg) {
auto* semaphore = static_cast<SemaphoreHandle_t>(arg);
BaseType_t high_task_woken = pdFALSE;
xSemaphoreGiveFromISR(semaphore, &high_task_woken);
if (high_task_woken == pdTRUE) {
portYIELD_FROM_ISR();
}
}
static int pin_or_unused(const struct GpioPinSpec& pin) {
return pin.gpio_controller == nullptr ? -1 : static_cast<int>(pin.pin);
}
static gpio_num_t pin_or_nc(const struct GpioPinSpec& pin) {
return pin.gpio_controller == nullptr ? GPIO_NUM_NC : static_cast<gpio_num_t>(pin.pin);
}
// Unpacks the devicetree's flat [cmd, data_len, delay_ms, data_len bytes...] encoding (produced
// by the devicetree compiler's "array" property type - see init-sequence in
// bindings/axs,axs15231b.yaml) into a heap-allocated axs15231b_lcd_init_cmd_t array.
static bool parse_init_sequence(const uint8_t* bytes, uint32_t length, axs15231b_lcd_init_cmd_t** out_cmds, uint16_t* out_count) {
uint32_t count = 0;
for (uint32_t offset = 0; offset < length; count++) {
if (offset + 3 > length) {
LOG_E(TAG, "init-sequence truncated: entry header runs past the end of the array");
return false;
}
offset += 3 + bytes[offset + 1];
if (offset > length) {
LOG_E(TAG, "init-sequence truncated: entry data runs past the end of the array");
return false;
}
}
auto* cmds = static_cast<axs15231b_lcd_init_cmd_t*>(malloc(count * sizeof(axs15231b_lcd_init_cmd_t)));
if (cmds == nullptr) {
return false;
}
uint32_t offset = 0;
for (uint32_t i = 0; i < count; i++) {
uint8_t data_len = bytes[offset + 1];
cmds[i] = {
.cmd = bytes[offset],
.data = data_len > 0 ? &bytes[offset + 3] : nullptr,
.data_bytes = data_len,
.delay_ms = bytes[offset + 2],
};
offset += 3 + data_len;
}
*out_cmds = cmds;
*out_count = (uint16_t)count;
return true;
}
// region Driver lifecycle
// Best-effort: a TE pin is a hardware refinement, not a requirement, so failures here are logged
// and left for the caller to treat as non-fatal (matches the original deprecated-HAL driver,
// which continued without TE sync if setup failed).
static bool setup_te_sync(Axs15231bDisplayInternal* internal, gpio_num_t te_pin) {
if (te_pin == GPIO_NUM_NC) {
return true;
}
internal->te_semaphore = xSemaphoreCreateBinary();
if (internal->te_semaphore == nullptr) {
LOG_E(TAG, "Failed to create TE sync semaphore");
return false;
}
gpio_config_t io_conf = {
.pin_bit_mask = 1ULL << te_pin,
.mode = GPIO_MODE_INPUT,
.pull_up_en = GPIO_PULLUP_DISABLE,
.pull_down_en = GPIO_PULLDOWN_DISABLE,
.intr_type = GPIO_INTR_POSEDGE,
};
if (gpio_config(&io_conf) != ESP_OK) {
LOG_E(TAG, "Failed to configure TE GPIO");
vSemaphoreDelete(internal->te_semaphore);
internal->te_semaphore = nullptr;
return false;
}
esp_err_t ret = gpio_install_isr_service(ESP_INTR_FLAG_IRAM);
if (ret == ESP_OK) {
internal->te_isr_service_installed_by_us = true;
} else if (ret != ESP_ERR_INVALID_STATE) { // ESP_ERR_INVALID_STATE means it's already installed elsewhere
LOG_E(TAG, "Failed to install GPIO ISR service");
vSemaphoreDelete(internal->te_semaphore);
internal->te_semaphore = nullptr;
return false;
}
if (gpio_isr_handler_add(te_pin, te_isr_handler, internal->te_semaphore) != ESP_OK) {
LOG_E(TAG, "Failed to add TE ISR handler");
if (internal->te_isr_service_installed_by_us) {
gpio_uninstall_isr_service();
internal->te_isr_service_installed_by_us = false;
}
vSemaphoreDelete(internal->te_semaphore);
internal->te_semaphore = nullptr;
return false;
}
internal->te_isr_installed = true;
return true;
}
static void teardown_te_sync(Axs15231bDisplayInternal* internal, gpio_num_t te_pin) {
if (internal->te_isr_installed) {
gpio_isr_handler_remove(te_pin);
gpio_intr_disable(te_pin);
internal->te_isr_installed = false;
}
if (internal->te_isr_service_installed_by_us) {
gpio_uninstall_isr_service();
internal->te_isr_service_installed_by_us = false;
}
if (internal->te_semaphore != nullptr) {
vSemaphoreDelete(internal->te_semaphore);
internal->te_semaphore = nullptr;
}
}
static error_t start(Device* device) {
auto* parent = device_get_parent(device);
check(device_get_type(parent) == &SPI_CONTROLLER_TYPE);
const auto* spi_config = static_cast<const Esp32SpiConfig*>(parent->config);
const auto* config = GET_CONFIG(device);
struct GpioPinSpec cs_pin;
if (esp32_spi_get_cs_pin(device, &cs_pin) != ERROR_NONE) {
LOG_E(TAG, "Failed to resolve CS pin");
return ERROR_RESOURCE;
}
auto* internal = static_cast<Axs15231bDisplayInternal*>(malloc(sizeof(Axs15231bDisplayInternal)));
if (internal == nullptr) {
return ERROR_OUT_OF_MEMORY;
}
internal->te_semaphore = nullptr;
internal->te_isr_installed = false;
internal->te_isr_service_installed_by_us = false;
internal->parsed_init_cmds = nullptr;
const axs15231b_lcd_init_cmd_t* init_cmds = nullptr;
uint16_t init_cmds_size = 0;
if (config->init_sequence != nullptr && config->init_sequence_length > 0) {
if (!parse_init_sequence(config->init_sequence, config->init_sequence_length, &internal->parsed_init_cmds, &init_cmds_size)) {
LOG_E(TAG, "Failed to parse init-sequence property");
free(internal);
return ERROR_INVALID_ARGUMENT;
}
init_cmds = internal->parsed_init_cmds;
}
internal->draw_done_semaphore = xSemaphoreCreateBinary();
if (internal->draw_done_semaphore == nullptr) {
free(internal->parsed_init_cmds);
free(internal);
return ERROR_OUT_OF_MEMORY;
}
// AXS15231B is only ever driven over QSPI in this codebase (no plain-SPI/i80 board has shown
// up yet), so quad_mode/lcd_cmd_bits/lcd_param_bits are fixed rather than devicetree knobs -
// matches AXS15231B_PANEL_IO_QSPI_CONFIG() in esp_lcd_axs15231b.h. dc_gpio_num is unused in
// QSPI mode (command/data framing goes over the command byte instead of a DC line).
esp_lcd_panel_io_spi_config_t io_config = {
.cs_gpio_num = pin_or_unused(cs_pin),
.dc_gpio_num = -1,
.spi_mode = 3,
.pclk_hz = config->pixel_clock_hz,
.trans_queue_depth = config->transaction_queue_depth,
.on_color_trans_done = on_color_trans_done,
.user_ctx = internal,
.lcd_cmd_bits = 32,
.lcd_param_bits = 8,
.cs_ena_pretrans = 0,
.cs_ena_posttrans = 0,
.flags = {
.dc_high_on_cmd = 0,
.dc_low_on_data = 0,
.dc_low_on_param = 0,
.octal_mode = 0,
.quad_mode = 1,
.sio_mode = 0,
.lsb_first = 0,
.cs_high_active = 0,
},
};
esp_err_t ret = esp_lcd_new_panel_io_spi((esp_lcd_spi_bus_handle_t)spi_config->host, &io_config, &internal->io_handle);
if (ret != ESP_OK) {
LOG_E(TAG, "Failed to create panel IO: %s", esp_err_to_name(ret));
vSemaphoreDelete(internal->draw_done_semaphore);
free(internal->parsed_init_cmds);
free(internal);
return ERROR_RESOURCE;
}
axs15231b_vendor_config_t vendor_config = {
.init_cmds = init_cmds,
.init_cmds_size = init_cmds_size,
.flags = {
.use_qspi_interface = 1,
},
};
esp_lcd_panel_dev_config_t panel_config = {
.reset_gpio_num = pin_or_unused(config->pin_reset),
.rgb_ele_order = config->bgr_order ? LCD_RGB_ELEMENT_ORDER_BGR : LCD_RGB_ELEMENT_ORDER_RGB,
.data_endian = LCD_RGB_DATA_ENDIAN_LITTLE,
.bits_per_pixel = 16,
.flags = { .reset_active_high = config->reset_active_high },
.vendor_config = &vendor_config,
};
ret = esp_lcd_new_panel_axs15231b(internal->io_handle, &panel_config, &internal->panel_handle);
if (ret != ESP_OK) {
LOG_E(TAG, "Failed to create panel: %s", esp_err_to_name(ret));
esp_lcd_panel_io_del(internal->io_handle);
vSemaphoreDelete(internal->draw_done_semaphore);
free(internal->parsed_init_cmds);
free(internal);
return ERROR_RESOURCE;
}
// Bring-up sequence. swap_xy is intentionally not called (and not exposed in DisplayApi below):
// It doesn't work on this chip/panel combination.
//
// esp_lcd_axs15231b's disp_on_off callback is wired up backwards: its body branches on a
// parameter it names "off" (true -> DISPOFF, false -> DISPON), but esp_lcd_panel_disp_on_off()
// forwards its "on_off" argument straight through with no inversion - so passing true here
// actually switches the panel OFF. Pass false to really turn it on (confirmed against the
// deleted deprecated-HAL driver, which called this same function with false for the same
// reason). See axs15231b_disp_on_off() below, which un-inverts this for DisplayApi callers.
//
// (note: all of this was tested on guition-jc3248w535c only)
bool ok =
esp_lcd_panel_reset(internal->panel_handle) == ESP_OK &&
esp_lcd_panel_init(internal->panel_handle) == ESP_OK &&
esp_lcd_panel_mirror(internal->panel_handle, config->mirror_x, config->mirror_y) == ESP_OK &&
esp_lcd_panel_invert_color(internal->panel_handle, config->invert_color) == ESP_OK &&
esp_lcd_panel_disp_on_off(internal->panel_handle, false) == ESP_OK;
if (!ok) {
LOG_E(TAG, "Failed to bring up panel");
esp_lcd_panel_del(internal->panel_handle);
esp_lcd_panel_io_del(internal->io_handle);
vSemaphoreDelete(internal->draw_done_semaphore);
free(internal->parsed_init_cmds);
free(internal);
return ERROR_RESOURCE;
}
if (!setup_te_sync(internal, pin_or_nc(config->pin_te))) {
LOG_W(TAG, "TE sync setup failed, continuing without TE synchronization");
}
device_set_driver_data(device, internal);
return ERROR_NONE;
}
static error_t stop(Device* device) {
const auto* config = GET_CONFIG(device);
auto* internal = static_cast<Axs15231bDisplayInternal*>(device_get_driver_data(device));
teardown_te_sync(internal, pin_or_nc(config->pin_te));
if (internal->panel_handle != nullptr) {
if (esp_lcd_panel_del(internal->panel_handle) != ESP_OK) {
LOG_E(TAG, "Failed to delete panel");
return ERROR_RESOURCE;
}
internal->panel_handle = nullptr;
}
if (internal->io_handle != nullptr) {
if (esp_lcd_panel_io_del(internal->io_handle) != ESP_OK) {
LOG_E(TAG, "Failed to delete panel IO");
return ERROR_RESOURCE;
}
internal->io_handle = nullptr;
}
vSemaphoreDelete(internal->draw_done_semaphore);
free(internal->parsed_init_cmds);
free(internal);
device_set_driver_data(device, nullptr);
return ERROR_NONE;
}
// endregion
// region DisplayApi
static error_t axs15231b_reset(Device* device) {
auto* internal = static_cast<Axs15231bDisplayInternal*>(device_get_driver_data(device));
return esp_lcd_panel_reset(internal->panel_handle) == ESP_OK ? ERROR_NONE : ERROR_RESOURCE;
}
static error_t axs15231b_init(Device* device) {
auto* internal = static_cast<Axs15231bDisplayInternal*>(device_get_driver_data(device));
return esp_lcd_panel_init(internal->panel_handle) == ESP_OK ? ERROR_NONE : ERROR_RESOURCE;
}
static error_t axs15231b_draw_bitmap(Device* device, int32_t x_start, int32_t y_start, int32_t x_end, int32_t y_end, const void* color_data) {
auto* internal = static_cast<Axs15231bDisplayInternal*>(device_get_driver_data(device));
// Best-effort wait for the next V-blank pulse before transferring, to reduce visible tearing.
// Non-fatal if it times out (matches the original deprecated-HAL driver) - draw_bitmap()
// still has to happen even if TE sync missed its window.
if (internal->te_semaphore != nullptr) {
xSemaphoreTake(internal->te_semaphore, 0); // drain any already-pending signal
xSemaphoreTake(internal->te_semaphore, pdMS_TO_TICKS(20));
}
// Drain any stale signal left over from a prior non-draw transaction (bring-up commands like
// reset/init also complete through on_color_trans_done), so the take() below can only be
// satisfied by this draw's own transfer completing.
xSemaphoreTake(internal->draw_done_semaphore, 0);
if (esp_lcd_panel_draw_bitmap(internal->panel_handle, x_start, y_start, x_end, y_end, color_data) != ESP_OK) {
return ERROR_RESOURCE;
}
xSemaphoreTake(internal->draw_done_semaphore, portMAX_DELAY);
return ERROR_NONE;
}
static error_t axs15231b_mirror(Device* device, bool x_axis, bool y_axis) {
auto* internal = static_cast<Axs15231bDisplayInternal*>(device_get_driver_data(device));
return esp_lcd_panel_mirror(internal->panel_handle, x_axis, y_axis) == ESP_OK ? ERROR_NONE : ERROR_RESOURCE;
}
static bool axs15231b_get_mirror_x(Device* device) {
return GET_CONFIG(device)->mirror_x;
}
static bool axs15231b_get_mirror_y(Device* device) {
return GET_CONFIG(device)->mirror_y;
}
// swap_xy/set_gap/disp_sleep are not exposed: swap_xy is confirmed non-functional on this
// chip/panel combination on real hardware (see start()'s comment), and the AXS15231B component
// doesn't implement set_gap or disp_sleep at all.
static error_t axs15231b_invert_color(Device* device, bool invert_color_data) {
auto* internal = static_cast<Axs15231bDisplayInternal*>(device_get_driver_data(device));
return esp_lcd_panel_invert_color(internal->panel_handle, invert_color_data) == ESP_OK ? ERROR_NONE : ERROR_RESOURCE;
}
static error_t axs15231b_disp_on_off(Device* device, bool on_off) {
auto* internal = static_cast<Axs15231bDisplayInternal*>(device_get_driver_data(device));
// Inverted: see the comment on the disp_on_off call in start() above.
return esp_lcd_panel_disp_on_off(internal->panel_handle, !on_off) == ESP_OK ? ERROR_NONE : ERROR_RESOURCE;
}
// _SWAPPED (not plain RGB565): the panel expects each 16-bit pixel high-byte-first over the QSPI
// bus, but this CPU is little-endian - the original deprecated-HAL driver did the equivalent
// byte-swap by hand in its custom flush callback (lv_draw_sw_rgb565_swap()); the generic
// lvgl-module bridge does it for us once we report this format (see lvgl_display_map_color_format()).
static enum DisplayColorFormat axs15231b_get_color_format(Device*) {
return DISPLAY_COLOR_FORMAT_RGB565_SWAPPED;
}
static uint16_t axs15231b_get_resolution_x(Device* device) {
return GET_CONFIG(device)->horizontal_resolution;
}
static uint16_t axs15231b_get_resolution_y(Device* device) {
return GET_CONFIG(device)->vertical_resolution;
}
static void axs15231b_get_frame_buffer(Device*, uint8_t, void** out_buffer) {
*out_buffer = nullptr;
}
static uint8_t axs15231b_get_frame_buffer_count(Device*) {
return 0;
}
static error_t axs15231b_get_backlight(Device* device, Device** backlight) {
auto* configured_backlight = GET_CONFIG(device)->backlight;
if (configured_backlight == nullptr) {
return ERROR_NOT_SUPPORTED;
}
*backlight = configured_backlight;
return ERROR_NONE;
}
// REQUIRES_FULL_FRAME is the only capability that varies per device instance (via the
// requires-full-frame devicetree property, see axs15231b_display.h) - a sub-region draw_bitmap()
// call desyncs this chip's row auto-increment counter, since its QSPI command set has no
// row-address command, but that's been confirmed needed on some boards' wiring/panel combination
// and not assumed true for every AXS15231B board (see start()'s notes on what's been tested where).
// Every other bit stays fixed for the driver, mirrored here from axs15231b_display_api.capabilities.
static bool axs15231b_has_capability(Device* device, uint32_t capability) {
uint32_t static_capabilities = DISPLAY_CAPABILITY_CAP_MIRROR | DISPLAY_CAPABILITY_INVERT_COLOR |
DISPLAY_CAPABILITY_ON_OFF | DISPLAY_CAPABILITY_BACKLIGHT;
if (GET_CONFIG(device)->requires_full_frame) {
static_capabilities |= DISPLAY_CAPABILITY_REQUIRES_FULL_FRAME;
}
return (static_capabilities & capability) == capability;
}
// endregion
static const DisplayApi axs15231b_display_api = {
// Mirrors axs15231b_has_capability()'s static_capabilities for callers that read this field
// directly instead of going through display_has_capability()/has_capability(). Excludes
// REQUIRES_FULL_FRAME - see axs15231b_has_capability() above, which is the source of truth.
.capabilities = DISPLAY_CAPABILITY_CAP_MIRROR | DISPLAY_CAPABILITY_INVERT_COLOR |
DISPLAY_CAPABILITY_ON_OFF | DISPLAY_CAPABILITY_BACKLIGHT,
.reset = axs15231b_reset,
.init = axs15231b_init,
.draw_bitmap = axs15231b_draw_bitmap,
.mirror = axs15231b_mirror,
.swap_xy = nullptr,
.get_swap_xy = nullptr,
.get_mirror_x = axs15231b_get_mirror_x,
.get_mirror_y = axs15231b_get_mirror_y,
.set_gap = nullptr,
.invert_color = axs15231b_invert_color,
.disp_on_off = axs15231b_disp_on_off,
.disp_sleep = nullptr,
.get_color_format = axs15231b_get_color_format,
.get_resolution_x = axs15231b_get_resolution_x,
.get_resolution_y = axs15231b_get_resolution_y,
.get_frame_buffer = axs15231b_get_frame_buffer,
.get_frame_buffer_count = axs15231b_get_frame_buffer_count,
.get_backlight = axs15231b_get_backlight,
.has_capability = axs15231b_has_capability,
};
Driver axs15231b_display_driver = {
.name = "axs15231b_display",
.compatible = (const char*[]) { "axs,axs15231b", nullptr },
.start_device = start,
.stop_device = stop,
.api = &axs15231b_display_api,
.device_type = &DISPLAY_TYPE,
.owner = &axs15231b_module,
.internal = nullptr
};
@@ -0,0 +1,211 @@
// SPDX-License-Identifier: Apache-2.0
#include <drivers/axs15231b_touch.h>
#include <axs15231b_module.h>
#include <tactility/check.h>
#include <tactility/device.h>
#include <tactility/driver.h>
#include <tactility/drivers/esp32_i2c.h>
#include <tactility/drivers/esp32_i2c_master.h>
#include <tactility/drivers/i2c_controller.h>
#include <tactility/drivers/pointer.h>
#include <tactility/error.h>
#include <tactility/log.h>
#include <esp_err.h>
#include <esp_lcd_axs15231b.h>
#include <esp_lcd_io_i2c.h>
#include <esp_lcd_panel_io.h>
#include <esp_lcd_touch.h>
#include <cstdlib>
#define TAG "AXS15231BTouch"
#define GET_CONFIG(device) (static_cast<const Axs15231bTouchConfig*>((device)->config))
struct Axs15231bTouchInternal {
esp_lcd_panel_io_handle_t io_handle;
esp_lcd_touch_handle_t touch_handle;
};
static inline gpio_num_t pin_or_nc(const struct GpioPinSpec& pin) {
return pin.gpio_controller == nullptr ? GPIO_NUM_NC : static_cast<gpio_num_t>(pin.pin);
}
// region Driver lifecycle
// AXS15231B always sits at a fixed I2C address (ESP_LCD_TOUCH_IO_I2C_AXS15231B_ADDRESS), unlike
// GT911's strapping-dependent address, so no bus probing is needed here.
static esp_err_t create_io_handle(Device* parent, esp_lcd_panel_io_handle_t* out_handle) {
esp_lcd_panel_io_i2c_config_t io_config = ESP_LCD_TOUCH_IO_I2C_AXS15231B_CONFIG();
auto* parent_driver = device_get_driver(parent);
if (driver_is_compatible(parent_driver, "espressif,esp32-i2c")) {
auto port = static_cast<const Esp32I2cConfig*>(parent->config)->port;
return esp_lcd_new_panel_io_i2c_v1(port, &io_config, out_handle);
}
if (driver_is_compatible(parent_driver, "espressif,esp32-i2c-master")) {
auto bus = esp32_i2c_master_get_bus_handle(parent);
io_config.scl_speed_hz = esp32_i2c_master_get_clock_frequency(parent);
return esp_lcd_new_panel_io_i2c_v2(bus, &io_config, out_handle);
}
LOG_E(TAG, "Unsupported I2C driver");
return ESP_ERR_NOT_SUPPORTED;
}
static error_t start(Device* device) {
auto* parent = device_get_parent(device);
check(device_get_type(parent) == &I2C_CONTROLLER_TYPE);
const auto* config = GET_CONFIG(device);
auto* internal = static_cast<Axs15231bTouchInternal*>(malloc(sizeof(Axs15231bTouchInternal)));
if (internal == nullptr) {
return ERROR_OUT_OF_MEMORY;
}
esp_err_t ret = create_io_handle(parent, &internal->io_handle);
if (ret != ESP_OK) {
free(internal);
return ERROR_RESOURCE;
}
esp_lcd_touch_config_t touch_config = {
.x_max = config->x_max,
.y_max = config->y_max,
.rst_gpio_num = pin_or_nc(config->pin_reset),
.int_gpio_num = pin_or_nc(config->pin_interrupt),
.levels = {
.reset = config->reset_active_high ? 1u : 0u,
.interrupt = config->interrupt_active_high ? 1u : 0u,
},
.flags = {
.swap_xy = config->swap_xy ? 1u : 0u,
.mirror_x = config->mirror_x ? 1u : 0u,
.mirror_y = config->mirror_y ? 1u : 0u,
},
.process_coordinates = nullptr,
.interrupt_callback = nullptr,
.user_data = nullptr,
.driver_data = nullptr,
};
ret = esp_lcd_touch_new_i2c_axs15231b(internal->io_handle, &touch_config, &internal->touch_handle);
if (ret != ESP_OK) {
LOG_E(TAG, "Failed to create touch handle: %s", esp_err_to_name(ret));
esp_lcd_panel_io_del(internal->io_handle);
free(internal);
return ERROR_RESOURCE;
}
device_set_driver_data(device, internal);
return ERROR_NONE;
}
static error_t stop(Device* device) {
auto* internal = static_cast<Axs15231bTouchInternal*>(device_get_driver_data(device));
// esp_lcd_touch_del() only releases the touch-side resources; the panel IO handle is owned
// separately and needs its own deletion.
if (internal->touch_handle != nullptr) {
if (esp_lcd_touch_del(internal->touch_handle) != ESP_OK) {
LOG_E(TAG, "Failed to delete touch handle");
return ERROR_RESOURCE;
}
internal->touch_handle = nullptr;
}
if (internal->io_handle != nullptr) {
if (esp_lcd_panel_io_del(internal->io_handle) != ESP_OK) {
LOG_E(TAG, "Failed to delete panel IO handle");
return ERROR_RESOURCE;
}
internal->io_handle = nullptr;
}
free(internal);
device_set_driver_data(device, nullptr);
return ERROR_NONE;
}
// endregion
// region PointerApi
static error_t axs15231b_touch_enter_sleep(Device* device) {
auto* internal = static_cast<Axs15231bTouchInternal*>(device_get_driver_data(device));
return esp_lcd_touch_enter_sleep(internal->touch_handle) == ESP_OK ? ERROR_NONE : ERROR_RESOURCE;
}
static error_t axs15231b_touch_exit_sleep(Device* device) {
auto* internal = static_cast<Axs15231bTouchInternal*>(device_get_driver_data(device));
return esp_lcd_touch_exit_sleep(internal->touch_handle) == ESP_OK ? ERROR_NONE : ERROR_RESOURCE;
}
static error_t axs15231b_touch_read_data(Device* device, TickType_t timeout) {
(void)timeout; // esp_lcd_touch_read_data() has no timeout parameter
auto* internal = static_cast<Axs15231bTouchInternal*>(device_get_driver_data(device));
return esp_lcd_touch_read_data(internal->touch_handle) == ESP_OK ? ERROR_NONE : ERROR_RESOURCE;
}
static bool axs15231b_touch_get_touched_points(Device* device, uint16_t* x, uint16_t* y, uint16_t* strength, uint8_t* point_count, uint8_t max_point_count) {
auto* internal = static_cast<Axs15231bTouchInternal*>(device_get_driver_data(device));
return esp_lcd_touch_get_coordinates(internal->touch_handle, x, y, strength, point_count, max_point_count);
}
static error_t axs15231b_touch_set_swap_xy(Device* device, bool swap) {
auto* internal = static_cast<Axs15231bTouchInternal*>(device_get_driver_data(device));
return esp_lcd_touch_set_swap_xy(internal->touch_handle, swap) == ESP_OK ? ERROR_NONE : ERROR_RESOURCE;
}
static error_t axs15231b_touch_get_swap_xy(Device* device, bool* swap) {
auto* internal = static_cast<Axs15231bTouchInternal*>(device_get_driver_data(device));
return esp_lcd_touch_get_swap_xy(internal->touch_handle, swap) == ESP_OK ? ERROR_NONE : ERROR_RESOURCE;
}
static error_t axs15231b_touch_set_mirror_x(Device* device, bool mirror) {
auto* internal = static_cast<Axs15231bTouchInternal*>(device_get_driver_data(device));
return esp_lcd_touch_set_mirror_x(internal->touch_handle, mirror) == ESP_OK ? ERROR_NONE : ERROR_RESOURCE;
}
static error_t axs15231b_touch_get_mirror_x(Device* device, bool* mirror) {
auto* internal = static_cast<Axs15231bTouchInternal*>(device_get_driver_data(device));
return esp_lcd_touch_get_mirror_x(internal->touch_handle, mirror) == ESP_OK ? ERROR_NONE : ERROR_RESOURCE;
}
static error_t axs15231b_touch_set_mirror_y(Device* device, bool mirror) {
auto* internal = static_cast<Axs15231bTouchInternal*>(device_get_driver_data(device));
return esp_lcd_touch_set_mirror_y(internal->touch_handle, mirror) == ESP_OK ? ERROR_NONE : ERROR_RESOURCE;
}
static error_t axs15231b_touch_get_mirror_y(Device* device, bool* mirror) {
auto* internal = static_cast<Axs15231bTouchInternal*>(device_get_driver_data(device));
return esp_lcd_touch_get_mirror_y(internal->touch_handle, mirror) == ESP_OK ? ERROR_NONE : ERROR_RESOURCE;
}
// endregion
static const PointerApi axs15231b_touch_pointer_api = {
.enter_sleep = axs15231b_touch_enter_sleep,
.exit_sleep = axs15231b_touch_exit_sleep,
.read_data = axs15231b_touch_read_data,
.get_touched_points = axs15231b_touch_get_touched_points,
.set_swap_xy = axs15231b_touch_set_swap_xy,
.get_swap_xy = axs15231b_touch_get_swap_xy,
.set_mirror_x = axs15231b_touch_set_mirror_x,
.get_mirror_x = axs15231b_touch_get_mirror_x,
.set_mirror_y = axs15231b_touch_set_mirror_y,
.get_mirror_y = axs15231b_touch_get_mirror_y,
};
Driver axs15231b_touch_driver = {
.name = "axs15231b_touch",
.compatible = (const char*[]) { "axs,axs15231b-touch", nullptr },
.start_device = start,
.stop_device = stop,
.api = &axs15231b_touch_pointer_api,
.device_type = &POINTER_TYPE,
.owner = &axs15231b_module,
.internal = nullptr
};
@@ -0,0 +1,35 @@
// SPDX-License-Identifier: Apache-2.0
#include <tactility/check.h>
#include <tactility/driver.h>
#include <tactility/module.h>
extern "C" {
extern Driver axs15231b_display_driver;
extern Driver axs15231b_touch_driver;
static error_t start() {
/* We crash when construct fails, because if a single driver fails to construct,
* there is no guarantee that the previously constructed drivers can be destroyed */
check(driver_construct_add(&axs15231b_display_driver) == ERROR_NONE);
check(driver_construct_add(&axs15231b_touch_driver) == ERROR_NONE);
return ERROR_NONE;
}
static error_t stop() {
/* We crash when destruct fails, because if a single driver fails to destruct,
* there is no guarantee that the previously destroyed drivers can be recovered */
check(driver_remove_destruct(&axs15231b_touch_driver) == ERROR_NONE);
check(driver_remove_destruct(&axs15231b_display_driver) == ERROR_NONE);
return ERROR_NONE;
}
Module axs15231b_module = {
.name = "axs15231b",
.start = start,
.stop = stop,
.symbols = nullptr,
.internal = nullptr
};
} // extern "C"
+11
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@@ -0,0 +1,11 @@
cmake_minimum_required(VERSION 3.20)
include("${CMAKE_CURRENT_LIST_DIR}/../../Buildscripts/module.cmake")
file(GLOB_RECURSE SOURCE_FILES "source/*.c*")
tactility_add_module(bq25896-module
SRCS ${SOURCE_FILES}
INCLUDE_DIRS include/
REQUIRES TactilityKernel
)
@@ -0,0 +1,11 @@
description: >
TI BQ25896 1-cell 3A buck battery charger with power path and PSEL. Creates a "power-supply"
child device (see drivers/bq25896.h) exposing ship-mode power-off only - matches the
deprecated HAL's Bq25896, which never read charging status/metrics from this chip (that came
from a separate fuel gauge, if present - see the bq27220 driver).
include: ["i2c-device.yaml"]
compatible: "ti,bq25896"
bus: i2c
+3
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@@ -0,0 +1,3 @@
dependencies:
- TactilityKernel
bindings: bindings
@@ -0,0 +1,7 @@
// SPDX-License-Identifier: Apache-2.0
#pragma once
#include <tactility/bindings/bindings.h>
#include <drivers/bq25896.h>
DEFINE_DEVICETREE(bq25896, struct Bq25896Config)
@@ -0,0 +1,14 @@
// SPDX-License-Identifier: Apache-2.0
#pragma once
#include <tactility/module.h>
#ifdef __cplusplus
extern "C" {
#endif
extern struct Module bq25896_module;
#ifdef __cplusplus
}
#endif
@@ -0,0 +1,17 @@
// SPDX-License-Identifier: Apache-2.0
#pragma once
#ifdef __cplusplus
extern "C" {
#endif
#include <stdint.h>
struct Bq25896Config {
// Devicetree address hint (0x6B).
uint8_t address;
};
#ifdef __cplusplus
}
#endif
+175
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@@ -0,0 +1,175 @@
// SPDX-License-Identifier: Apache-2.0
#include <drivers/bq25896.h>
#include <bq25896_module.h>
#include <tactility/check.h>
#include <tactility/device.h>
#include <tactility/driver.h>
#include <tactility/drivers/i2c_controller.h>
#include <tactility/drivers/power_supply.h>
#include <tactility/log.h>
#include <new>
#define TAG "BQ25896"
#define GET_CONFIG(device) (static_cast<const Bq25896Config*>((device)->config))
// The power-supply child's config pointer isn't set; it reads its settings from its parent
// (the bq25896 device) instead - same convention as the sy6970/bq27220 drivers.
#define GET_PARENT_CONFIG(device) (static_cast<const Bq25896Config*>(device_get_parent(device)->config))
#define GET_I2C_BUS(device) (device_get_parent(device_get_parent(device)))
static const TickType_t I2C_TIMEOUT = pdMS_TO_TICKS(50);
// REG09 bit5: BATFET_DIS. 0 = BATFET on (normal operation), 1 = BATFET off (ship mode).
// Register offset is shared with the SY6970 (see that driver's own comment).
static constexpr uint8_t REG_09 = 0x09;
static constexpr uint8_t REG09_BATFET_DIS = 1u << 5;
extern "C" {
// region PowerSupplyApi (power-supply child device)
// Matches the deprecated HAL's Bq25896: no charging status/metrics were ever read from this
// chip (those came from a separate fuel gauge, if present - see the bq27220 driver), so the
// only capability exposed here is ship-mode power-off.
static bool supports_property(Device*, PowerSupplyProperty) { return false; }
static error_t get_property(Device*, PowerSupplyProperty, PowerSupplyPropertyValue*) { return ERROR_NOT_SUPPORTED; }
static bool supports_charge_control(Device*) { return false; }
static bool is_allowed_to_charge(Device*) { return false; }
static error_t set_allowed_to_charge(Device*, bool) { return ERROR_NOT_SUPPORTED; }
static bool supports_quick_charge(Device*) { return false; }
static bool is_quick_charge_enabled(Device*) { return false; }
static error_t set_quick_charge_enabled(Device*, bool) { return ERROR_NOT_SUPPORTED; }
static bool supports_power_off(Device*) { return true; }
static error_t power_off(Device* device) {
auto* i2c = GET_I2C_BUS(device);
const auto* config = GET_PARENT_CONFIG(device);
LOG_I(TAG, "Power off (BATFET_DIS)");
return i2c_controller_register8_set_bits(i2c, config->address, REG_09, REG09_BATFET_DIS, I2C_TIMEOUT);
}
static constexpr PowerSupplyApi BQ25896_POWER_SUPPLY_API = {
.supports_property = supports_property,
.get_property = get_property,
.supports_charge_control = supports_charge_control,
.is_allowed_to_charge = is_allowed_to_charge,
.set_allowed_to_charge = set_allowed_to_charge,
.supports_quick_charge = supports_quick_charge,
.is_quick_charge_enabled = is_quick_charge_enabled,
.set_quick_charge_enabled = set_quick_charge_enabled,
.supports_power_off = supports_power_off,
.power_off = power_off,
};
// Registered (driver_construct_add() in module.cpp) so driver_bind() has a valid ->internal, but
// never matched against a devicetree node: bq25896_driver wires it up directly by pointer.
Driver bq25896_power_supply_driver = {
.name = "bq25896-power-supply",
.compatible = (const char*[]) { "bq25896-power-supply", nullptr },
.start_device = nullptr,
.stop_device = nullptr,
.api = &BQ25896_POWER_SUPPLY_API,
.device_type = &POWER_SUPPLY_TYPE,
.owner = &bq25896_module,
.internal = nullptr
};
// endregion
// region Driver lifecycle (bq25896 device itself)
struct Bq25896Internal {
Device* power_supply_device = nullptr;
};
static error_t create_power_supply_child(Device* parent, Device*& out_child) {
auto* child = new (std::nothrow) Device { .address = 0, .name = "bq25896-power-supply", .config = nullptr, .parent = nullptr, .internal = nullptr };
if (child == nullptr) {
return ERROR_OUT_OF_MEMORY;
}
error_t error = device_construct(child);
if (error != ERROR_NONE) {
delete child;
return error;
}
device_set_parent(child, parent);
device_set_driver(child, &bq25896_power_supply_driver);
error = device_add(child);
if (error != ERROR_NONE) {
device_destruct(child);
delete child;
return error;
}
error = device_start(child);
if (error != ERROR_NONE) {
device_remove(child);
device_destruct(child);
delete child;
return error;
}
out_child = child;
return ERROR_NONE;
}
static void destroy_power_supply_child(Device* child) {
check(device_stop(child) == ERROR_NONE);
check(device_remove(child) == ERROR_NONE);
check(device_destruct(child) == ERROR_NONE);
delete child;
}
static error_t start(Device* device) {
auto* parent = device_get_parent(device);
check(device_get_type(parent) == &I2C_CONTROLLER_TYPE);
const auto* config = GET_CONFIG(device);
// Matches the deprecated HAL's Bq25896::powerOn(): ensure the BATFET is on (normal
// operation), in case a previous run left it in ship mode.
LOG_I(TAG, "Power on");
i2c_controller_register8_reset_bits(parent, config->address, REG_09, REG09_BATFET_DIS, I2C_TIMEOUT);
auto* internal = new (std::nothrow) Bq25896Internal();
if (internal == nullptr) {
return ERROR_OUT_OF_MEMORY;
}
error_t error = create_power_supply_child(device, internal->power_supply_device);
if (error != ERROR_NONE) {
delete internal;
return error;
}
device_set_driver_data(device, internal);
return ERROR_NONE;
}
static error_t stop(Device* device) {
auto* internal = static_cast<Bq25896Internal*>(device_get_driver_data(device));
destroy_power_supply_child(internal->power_supply_device);
device_set_driver_data(device, nullptr);
delete internal;
return ERROR_NONE;
}
Driver bq25896_driver = {
.name = "bq25896",
.compatible = (const char*[]) { "ti,bq25896", nullptr },
.start_device = start,
.stop_device = stop,
.api = nullptr,
.device_type = nullptr,
.owner = &bq25896_module,
.internal = nullptr
};
// endregion
}
+35
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@@ -0,0 +1,35 @@
// SPDX-License-Identifier: Apache-2.0
#include <tactility/check.h>
#include <tactility/driver.h>
#include <tactility/module.h>
extern "C" {
extern Driver bq25896_driver;
extern Driver bq25896_power_supply_driver;
static error_t start() {
/* We crash when construct fails, because if a single driver fails to construct,
* there is no guarantee that the previously constructed drivers can be destroyed */
check(driver_construct_add(&bq25896_power_supply_driver) == ERROR_NONE);
check(driver_construct_add(&bq25896_driver) == ERROR_NONE);
return ERROR_NONE;
}
static error_t stop() {
/* We crash when destruct fails, because if a single driver fails to destruct,
* there is no guarantee that the previously destroyed drivers can be recovered */
check(driver_remove_destruct(&bq25896_driver) == ERROR_NONE);
check(driver_remove_destruct(&bq25896_power_supply_driver) == ERROR_NONE);
return ERROR_NONE;
}
Module bq25896_module = {
.name = "bq25896",
.start = start,
.stop = stop,
.symbols = nullptr,
.internal = nullptr
};
} // extern "C"
+11
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@@ -0,0 +1,11 @@
cmake_minimum_required(VERSION 3.20)
include("${CMAKE_CURRENT_LIST_DIR}/../../Buildscripts/module.cmake")
file(GLOB_RECURSE SOURCE_FILES "source/*.c*")
tactility_add_module(bq27220-module
SRCS ${SOURCE_FILES}
INCLUDE_DIRS include/
REQUIRES TactilityKernel
)
@@ -0,0 +1,12 @@
description: >
Texas Instruments BQ27220 CEDV battery fuel gauge. Creates a "power-supply" child device
(see drivers/bq27220.h) exposing battery current, voltage, charge-level and charging status
(derived from the BatteryStatus register's DSG/discharge flag); charge control and power-off
are not available from this chip alone (they come from a separate charger, if present - see
the sy6970 driver).
include: ["i2c-device.yaml"]
compatible: "ti,bq27220"
bus: i2c
+3
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@@ -0,0 +1,3 @@
dependencies:
- TactilityKernel
bindings: bindings
@@ -0,0 +1,7 @@
// SPDX-License-Identifier: Apache-2.0
#pragma once
#include <tactility/bindings/bindings.h>
#include <drivers/bq27220.h>
DEFINE_DEVICETREE(bq27220, struct Bq27220Config)
@@ -0,0 +1,14 @@
// SPDX-License-Identifier: Apache-2.0
#pragma once
#include <tactility/module.h>
#ifdef __cplusplus
extern "C" {
#endif
extern struct Module bq27220_module;
#ifdef __cplusplus
}
#endif
@@ -0,0 +1,17 @@
// SPDX-License-Identifier: Apache-2.0
#pragma once
#ifdef __cplusplus
extern "C" {
#endif
#include <stdint.h>
struct Bq27220Config {
// Devicetree address hint (0x55 on the LilyGO T-Deck Max).
uint8_t address;
};
#ifdef __cplusplus
}
#endif
+214
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@@ -0,0 +1,214 @@
// SPDX-License-Identifier: Apache-2.0
#include <drivers/bq27220.h>
#include <bq27220_module.h>
#include <tactility/check.h>
#include <tactility/device.h>
#include <tactility/driver.h>
#include <tactility/drivers/i2c_controller.h>
#include <tactility/drivers/power_supply.h>
#include <tactility/log.h>
#include <new>
#define TAG "BQ27220"
#define GET_CONFIG(device) (static_cast<const Bq27220Config*>((device)->config))
// The power-supply child's config pointer isn't set; it reads its settings from its parent
// (the bq27220 device) instead - same convention as the sy6970 driver.
#define GET_PARENT_CONFIG(device) (static_cast<const Bq27220Config*>(device_get_parent(device)->config))
#define GET_I2C_BUS(device) (device_get_parent(device_get_parent(device)))
static const TickType_t I2C_TIMEOUT = pdMS_TO_TICKS(50);
// BQ27220 standard command registers (16-bit, little-endian on the wire).
static constexpr uint8_t BQ27220_REG_VOLTAGE = 0x08;
static constexpr uint8_t BQ27220_REG_BATTERY_STATUS = 0x0A;
static constexpr uint8_t BQ27220_REG_CURRENT = 0x0C;
static constexpr uint8_t BQ27220_REG_STATE_OF_CHARGE = 0x2C;
// BatteryStatus bit 0: DSG (device is in DISCHARGE). Mirrors the deprecated HAL's
// TpagerPower/TdeckmaxPower fallback: "is charging" = not discharging.
static constexpr uint16_t BQ27220_BATTERY_STATUS_DSG = 1u << 0;
extern "C" {
// region PowerSupplyApi (power-supply child device)
static bool supports_property(Device*, PowerSupplyProperty property) {
switch (property) {
case POWER_SUPPLY_PROP_CURRENT:
case POWER_SUPPLY_PROP_VOLTAGE:
case POWER_SUPPLY_PROP_CAPACITY:
case POWER_SUPPLY_PROP_IS_CHARGING:
return true;
default:
return false;
}
}
static error_t get_property(Device* device, PowerSupplyProperty property, PowerSupplyPropertyValue* out_value) {
auto* i2c = GET_I2C_BUS(device);
const auto* config = GET_PARENT_CONFIG(device);
switch (property) {
case POWER_SUPPLY_PROP_VOLTAGE: {
uint16_t voltage_mv = 0;
if (i2c_controller_register16le_get(i2c, config->address, BQ27220_REG_VOLTAGE, &voltage_mv, I2C_TIMEOUT) != ERROR_NONE) {
return ERROR_NOT_FOUND;
}
out_value->int_value = voltage_mv;
return ERROR_NONE;
}
case POWER_SUPPLY_PROP_CURRENT: {
uint16_t raw = 0;
if (i2c_controller_register16le_get(i2c, config->address, BQ27220_REG_CURRENT, &raw, I2C_TIMEOUT) != ERROR_NONE) {
return ERROR_NOT_FOUND;
}
out_value->int_value = static_cast<int16_t>(raw);
return ERROR_NONE;
}
case POWER_SUPPLY_PROP_CAPACITY: {
uint16_t soc = 0;
if (i2c_controller_register16le_get(i2c, config->address, BQ27220_REG_STATE_OF_CHARGE, &soc, I2C_TIMEOUT) != ERROR_NONE) {
return ERROR_NOT_FOUND;
}
out_value->int_value = soc;
return ERROR_NONE;
}
case POWER_SUPPLY_PROP_IS_CHARGING: {
uint16_t status = 0;
if (i2c_controller_register16le_get(i2c, config->address, BQ27220_REG_BATTERY_STATUS, &status, I2C_TIMEOUT) != ERROR_NONE) {
return ERROR_NOT_FOUND;
}
out_value->int_value = (status & BQ27220_BATTERY_STATUS_DSG) == 0 ? 1 : 0;
return ERROR_NONE;
}
default:
return ERROR_NOT_SUPPORTED;
}
}
static bool supports_charge_control(Device*) { return false; }
static bool is_allowed_to_charge(Device*) { return false; }
static error_t set_allowed_to_charge(Device*, bool) { return ERROR_NOT_SUPPORTED; }
static bool supports_quick_charge(Device*) { return false; }
static bool is_quick_charge_enabled(Device*) { return false; }
static error_t set_quick_charge_enabled(Device*, bool) { return ERROR_NOT_SUPPORTED; }
static bool supports_power_off(Device*) { return false; }
static error_t power_off(Device*) { return ERROR_NOT_SUPPORTED; }
static constexpr PowerSupplyApi BQ27220_POWER_SUPPLY_API = {
.supports_property = supports_property,
.get_property = get_property,
.supports_charge_control = supports_charge_control,
.is_allowed_to_charge = is_allowed_to_charge,
.set_allowed_to_charge = set_allowed_to_charge,
.supports_quick_charge = supports_quick_charge,
.is_quick_charge_enabled = is_quick_charge_enabled,
.set_quick_charge_enabled = set_quick_charge_enabled,
.supports_power_off = supports_power_off,
.power_off = power_off,
};
// Registered (driver_construct_add() in module.cpp) so driver_bind() has a valid ->internal, but
// never matched against a devicetree node: bq27220_driver wires it up directly by pointer.
Driver bq27220_power_supply_driver = {
.name = "bq27220-power-supply",
.compatible = (const char*[]) { "bq27220-power-supply", nullptr },
.start_device = nullptr,
.stop_device = nullptr,
.api = &BQ27220_POWER_SUPPLY_API,
.device_type = &POWER_SUPPLY_TYPE,
.owner = &bq27220_module,
.internal = nullptr
};
// endregion
// region Driver lifecycle (bq27220 device itself)
struct Bq27220Internal {
Device* power_supply_device = nullptr;
};
static error_t create_power_supply_child(Device* parent, Device*& out_child) {
auto* child = new (std::nothrow) Device { .address = 0, .name = "bq27220-power-supply", .config = nullptr, .parent = nullptr, .internal = nullptr };
if (child == nullptr) {
return ERROR_OUT_OF_MEMORY;
}
error_t error = device_construct(child);
if (error != ERROR_NONE) {
delete child;
return error;
}
device_set_parent(child, parent);
device_set_driver(child, &bq27220_power_supply_driver);
error = device_add(child);
if (error != ERROR_NONE) {
device_destruct(child);
delete child;
return error;
}
error = device_start(child);
if (error != ERROR_NONE) {
device_remove(child);
device_destruct(child);
delete child;
return error;
}
out_child = child;
return ERROR_NONE;
}
static void destroy_power_supply_child(Device* child) {
check(device_stop(child) == ERROR_NONE);
check(device_remove(child) == ERROR_NONE);
check(device_destruct(child) == ERROR_NONE);
delete child;
}
static error_t start(Device* device) {
auto* parent = device_get_parent(device);
check(device_get_type(parent) == &I2C_CONTROLLER_TYPE);
auto* internal = new (std::nothrow) Bq27220Internal();
if (internal == nullptr) {
return ERROR_OUT_OF_MEMORY;
}
error_t error = create_power_supply_child(device, internal->power_supply_device);
if (error != ERROR_NONE) {
delete internal;
return error;
}
device_set_driver_data(device, internal);
return ERROR_NONE;
}
static error_t stop(Device* device) {
auto* internal = static_cast<Bq27220Internal*>(device_get_driver_data(device));
destroy_power_supply_child(internal->power_supply_device);
device_set_driver_data(device, nullptr);
delete internal;
return ERROR_NONE;
}
Driver bq27220_driver = {
.name = "bq27220",
.compatible = (const char*[]) { "ti,bq27220", nullptr },
.start_device = start,
.stop_device = stop,
.api = nullptr,
.device_type = nullptr,
.owner = &bq27220_module,
.internal = nullptr
};
// endregion
}
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// SPDX-License-Identifier: Apache-2.0
#include <tactility/check.h>
#include <tactility/driver.h>
#include <tactility/module.h>
extern "C" {
extern Driver bq27220_driver;
extern Driver bq27220_power_supply_driver;
static error_t start() {
/* We crash when construct fails, because if a single driver fails to construct,
* there is no guarantee that the previously constructed drivers can be destroyed */
check(driver_construct_add(&bq27220_power_supply_driver) == ERROR_NONE);
check(driver_construct_add(&bq27220_driver) == ERROR_NONE);
return ERROR_NONE;
}
static error_t stop() {
/* We crash when destruct fails, because if a single driver fails to destruct,
* there is no guarantee that the previously destroyed drivers can be recovered */
check(driver_remove_destruct(&bq27220_driver) == ERROR_NONE);
check(driver_remove_destruct(&bq27220_power_supply_driver) == ERROR_NONE);
return ERROR_NONE;
}
Module bq27220_module = {
.name = "bq27220",
.start = start,
.stop = stop,
.symbols = nullptr,
.internal = nullptr
};
} // extern "C"
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cmake_minimum_required(VERSION 3.20)
include("${CMAKE_CURRENT_LIST_DIR}/../../Buildscripts/module.cmake")
file(GLOB_RECURSE SOURCE_FILES "source/*.c*")
tactility_add_module(cst328-module
SRCS ${SOURCE_FILES}
INCLUDE_DIRS include/
REQUIRES TactilityKernel
)
@@ -0,0 +1,32 @@
description: >
Hynitron CST328 capacitive touch controller (register-compatible with the CST226SE, per
LilyGO's SensorLib TouchClassCST226). Supports up to 5 simultaneous touch points and
self-reports its panel resolution during bring-up.
include: ["i2c-device.yaml"]
compatible: "hynitron,cst328"
bus: i2c
properties:
swap-xy:
type: boolean
default: false
description: Swap the X and Y axes
mirror-x:
type: boolean
default: false
description: Mirror the X axis (against the chip's own self-reported resolution)
mirror-y:
type: boolean
default: false
description: Mirror the Y axis (against the chip's own self-reported resolution)
pin-reset:
type: phandles
default: GPIO_PIN_SPEC_NONE
description: Optional reset GPIO pin. Falls back to a software reset command if not set.
reset-active-high:
type: boolean
default: false
description: Whether the reset pin is active high
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dependencies:
- TactilityKernel
bindings: bindings
@@ -0,0 +1,7 @@
// SPDX-License-Identifier: Apache-2.0
#pragma once
#include <tactility/bindings/bindings.h>
#include <drivers/cst328.h>
DEFINE_DEVICETREE(cst328, struct Cst328Config)
@@ -0,0 +1,14 @@
// SPDX-License-Identifier: Apache-2.0
#pragma once
#include <tactility/module.h>
#ifdef __cplusplus
extern "C" {
#endif
extern struct Module cst328_module;
#ifdef __cplusplus
}
#endif
@@ -0,0 +1,25 @@
// SPDX-License-Identifier: Apache-2.0
#pragma once
#ifdef __cplusplus
extern "C" {
#endif
#include <stdint.h>
#include <stdbool.h>
#include <tactility/drivers/gpio.h>
struct Cst328Config {
// Devicetree address hint (0x1A on the LilyGO T-Deck Pro).
uint8_t address;
bool swap_xy;
bool mirror_x;
bool mirror_y;
struct GpioPinSpec pin_reset;
bool reset_active_high;
};
#ifdef __cplusplus
}
#endif
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// SPDX-License-Identifier: Apache-2.0
#include <drivers/cst328.h>
#include <cst328_module.h>
#include <tactility/check.h>
#include <tactility/delay.h>
#include <tactility/device.h>
#include <tactility/driver.h>
#include <tactility/drivers/gpio_controller.h>
#include <tactility/drivers/i2c_controller.h>
#include <tactility/drivers/pointer.h>
#include <tactility/error.h>
#include <tactility/log.h>
#include <cstdlib>
#include <utility>
#define TAG "CST328"
#define GET_CONFIG(device) (static_cast<const Cst328Config*>((device)->config))
static const TickType_t I2C_TIMEOUT = pdMS_TO_TICKS(50);
// The CST328/CST226SE protocol addresses registers via a 2-byte [class, sub-register] prefix
// (not a plain 1-byte register index), sent as a raw write, optionally followed by a read of the
// response - ported from LilyGO's SensorLib TouchClassCST226.cpp (touch/TouchClassCST226.cpp),
// the vendor driver actually used for the T-Deck Pro's CST328.
static constexpr uint8_t CST328_MAX_POINTS = 5;
static constexpr uint8_t STATUS_BUFFER_SIZE = 28;
struct Cst328Internal {
int16_t res_x;
int16_t res_y;
bool swap_xy;
bool mirror_x;
bool mirror_y;
uint8_t point_count;
int16_t x[CST328_MAX_POINTS];
int16_t y[CST328_MAX_POINTS];
uint8_t strength[CST328_MAX_POINTS];
};
static bool write2(Device* i2c, uint8_t address, uint8_t b0, uint8_t b1) {
uint8_t cmd[2] = { b0, b1 };
return i2c_controller_write(i2c, address, cmd, sizeof(cmd), I2C_TIMEOUT) == ERROR_NONE;
}
static bool query(Device* i2c, uint8_t address, uint8_t b0, uint8_t b1, uint8_t* out, size_t out_len) {
uint8_t cmd[2] = { b0, b1 };
return i2c_controller_write_read(i2c, address, cmd, sizeof(cmd), out, out_len, I2C_TIMEOUT) == ERROR_NONE;
}
// region Driver lifecycle
// Some boards wire a dedicated reset GPIO (e.g. the T-Deck Pro's GPIO45); others rely on the
// chip's own software reset command instead.
static void perform_reset(Device* i2c, uint8_t address, const Cst328Config* config) {
if (config->pin_reset.gpio_controller != nullptr) {
auto* rst = gpio_descriptor_acquire(config->pin_reset.gpio_controller, config->pin_reset.pin, GPIO_OWNER_GPIO);
if (rst != nullptr) {
gpio_descriptor_set_flags(rst, GPIO_FLAG_DIRECTION_OUTPUT);
gpio_descriptor_set_level(rst, config->reset_active_high);
delay_millis(100);
gpio_descriptor_set_level(rst, !config->reset_active_high);
gpio_descriptor_release(rst);
delay_millis(100);
return;
}
}
write2(i2c, address, 0xD1, 0x0E);
delay_millis(20);
}
// Enters command mode, reads the firmware checkcode and panel resolution, verifies the firmware
// is genuinely present, then exits command mode. Ported from TouchClassCST226::initImpl().
static bool identify_and_configure(Device* i2c, uint8_t address, Cst328Internal* internal) {
if (!write2(i2c, address, 0xD1, 0x01)) {
return false;
}
delay_millis(10);
uint8_t buffer[8];
if (!query(i2c, address, 0xD1, 0xFC, buffer, 4)) {
return false;
}
uint32_t checkcode = (static_cast<uint32_t>(buffer[3]) << 24) | (static_cast<uint32_t>(buffer[2]) << 16) |
(static_cast<uint32_t>(buffer[1]) << 8) | buffer[0];
if (!query(i2c, address, 0xD1, 0xF8, buffer, 4)) {
return false;
}
internal->res_x = static_cast<int16_t>((buffer[1] << 8) | buffer[0]);
internal->res_y = static_cast<int16_t>((buffer[3] << 8) | buffer[2]);
if (!query(i2c, address, 0xD2, 0x08, buffer, 8)) {
return false;
}
uint32_t fw_version = (static_cast<uint32_t>(buffer[3]) << 24) | (static_cast<uint32_t>(buffer[2]) << 16) |
(static_cast<uint32_t>(buffer[1]) << 8) | buffer[0];
if (fw_version == 0xA5A5A5A5) {
LOG_E(TAG, "Chip has no firmware");
return false;
}
if ((checkcode & 0xFFFF0000) != 0xCACA0000) {
LOG_E(TAG, "Firmware info read error");
return false;
}
LOG_I(TAG, "CST328 identified: %dx%d, firmware 0x%08lX", internal->res_x, internal->res_y, (unsigned long)fw_version);
return write2(i2c, address, 0xD1, 0x09); // exit command mode
}
static error_t start(Device* device) {
auto* parent = device_get_parent(device);
check(device_get_type(parent) == &I2C_CONTROLLER_TYPE);
const auto* config = GET_CONFIG(device);
auto* internal = static_cast<Cst328Internal*>(calloc(1, sizeof(Cst328Internal)));
if (internal == nullptr) {
return ERROR_OUT_OF_MEMORY;
}
internal->swap_xy = config->swap_xy;
internal->mirror_x = config->mirror_x;
internal->mirror_y = config->mirror_y;
perform_reset(parent, config->address, config);
if (!identify_and_configure(parent, config->address, internal)) {
// Non-fatal: matches the tolerant bring-up pattern used by other touch drivers in this
// codebase - a transient bus hiccup on the first transaction after boot shouldn't take
// the whole kernel down. The device just won't report touches until it responds.
LOG_W(TAG, "CST328 identity not confirmed (continuing)");
}
device_set_driver_data(device, internal);
return ERROR_NONE;
}
static error_t stop(Device* device) {
auto* internal = static_cast<Cst328Internal*>(device_get_driver_data(device));
free(internal);
device_set_driver_data(device, nullptr);
return ERROR_NONE;
}
// endregion
// region PointerApi
static error_t cst328_enter_sleep(Device* device) {
auto* parent = device_get_parent(device);
const auto* config = GET_CONFIG(device);
return write2(parent, config->address, 0xD1, 0x05) ? ERROR_NONE : ERROR_RESOURCE;
}
static error_t cst328_exit_sleep(Device* device) {
auto* parent = device_get_parent(device);
const auto* config = GET_CONFIG(device);
perform_reset(parent, config->address, config);
return ERROR_NONE;
}
static error_t cst328_read_data(Device* device, TickType_t /*timeout*/) {
auto* internal = static_cast<Cst328Internal*>(device_get_driver_data(device));
const auto* config = GET_CONFIG(device);
auto* parent = device_get_parent(device);
uint8_t buffer[STATUS_BUFFER_SIZE];
uint8_t reg = 0x00;
if (i2c_controller_write_read(parent, config->address, &reg, 1, buffer, sizeof(buffer), I2C_TIMEOUT) != ERROR_NONE) {
return ERROR_RESOURCE;
}
// Home-button gesture frame (T-Deck Pro doesn't have one wired, but the vendor protocol
// reports it): no touch point data.
bool is_home_gesture = buffer[0] == 0x83 && buffer[1] == 0x17 && buffer[5] == 0x80;
if (is_home_gesture || buffer[6] != 0xAB || buffer[0] == 0xAB || buffer[5] == 0x80) {
internal->point_count = 0;
return ERROR_NONE;
}
uint8_t point = buffer[5] & 0x7F;
if (point > CST328_MAX_POINTS || point == 0) {
write2(parent, config->address, 0x00, 0xAB); // acknowledge/clear
internal->point_count = 0;
return ERROR_NONE;
}
// A lone point whose status nibble isn't 0x06 is a spurious single-touch frame.
uint8_t point1_status = buffer[0] & 0x0F;
if (point == 1 && point1_status != 0x06) {
point = 0;
}
uint8_t index = 0;
for (uint8_t i = 0; i < point; i++) {
int16_t raw_x = static_cast<int16_t>((buffer[index + 1] << 4) | ((buffer[index + 3] >> 4) & 0x0F));
int16_t raw_y = static_cast<int16_t>((buffer[index + 2] << 4) | (buffer[index + 3] & 0x0F));
uint8_t pressure = buffer[index + 4];
if (internal->swap_xy) {
std::swap(raw_x, raw_y);
}
if (internal->mirror_x && internal->res_x > 0) {
raw_x = static_cast<int16_t>(internal->res_x - 1 - raw_x);
}
if (internal->mirror_y && internal->res_y > 0) {
raw_y = static_cast<int16_t>(internal->res_y - 1 - raw_y);
}
internal->x[i] = raw_x;
internal->y[i] = raw_y;
internal->strength[i] = pressure;
// First point's slot is 7 bytes wide (id/status + x-hi + y-hi + xy-lo + pressure + 2
// reserved); subsequent points are 5 bytes wide.
index = static_cast<uint8_t>((i == 0) ? (index + 7) : (index + 5));
}
internal->point_count = point;
return ERROR_NONE;
}
static bool cst328_get_touched_points(Device* device, uint16_t* x, uint16_t* y, uint16_t* strength, uint8_t* point_count, uint8_t max_point_count) {
auto* internal = static_cast<Cst328Internal*>(device_get_driver_data(device));
uint8_t count = internal->point_count < max_point_count ? internal->point_count : max_point_count;
for (uint8_t i = 0; i < count; i++) {
x[i] = static_cast<uint16_t>(internal->x[i]);
y[i] = static_cast<uint16_t>(internal->y[i]);
if (strength != nullptr) {
strength[i] = internal->strength[i];
}
}
*point_count = count;
return count > 0;
}
static error_t cst328_set_swap_xy(Device* device, bool swap) {
static_cast<Cst328Internal*>(device_get_driver_data(device))->swap_xy = swap;
return ERROR_NONE;
}
static error_t cst328_get_swap_xy(Device* device, bool* swap) {
*swap = static_cast<Cst328Internal*>(device_get_driver_data(device))->swap_xy;
return ERROR_NONE;
}
static error_t cst328_set_mirror_x(Device* device, bool mirror) {
static_cast<Cst328Internal*>(device_get_driver_data(device))->mirror_x = mirror;
return ERROR_NONE;
}
static error_t cst328_get_mirror_x(Device* device, bool* mirror) {
*mirror = static_cast<Cst328Internal*>(device_get_driver_data(device))->mirror_x;
return ERROR_NONE;
}
static error_t cst328_set_mirror_y(Device* device, bool mirror) {
static_cast<Cst328Internal*>(device_get_driver_data(device))->mirror_y = mirror;
return ERROR_NONE;
}
static error_t cst328_get_mirror_y(Device* device, bool* mirror) {
*mirror = static_cast<Cst328Internal*>(device_get_driver_data(device))->mirror_y;
return ERROR_NONE;
}
// endregion
static const PointerApi cst328_pointer_api = {
.enter_sleep = cst328_enter_sleep,
.exit_sleep = cst328_exit_sleep,
.read_data = cst328_read_data,
.get_touched_points = cst328_get_touched_points,
.set_swap_xy = cst328_set_swap_xy,
.get_swap_xy = cst328_get_swap_xy,
.set_mirror_x = cst328_set_mirror_x,
.get_mirror_x = cst328_get_mirror_x,
.set_mirror_y = cst328_set_mirror_y,
.get_mirror_y = cst328_get_mirror_y,
};
Driver cst328_driver = {
.name = "cst328",
.compatible = (const char*[]) { "hynitron,cst328", nullptr },
.start_device = start,
.stop_device = stop,
.api = &cst328_pointer_api,
.device_type = &POINTER_TYPE,
.owner = &cst328_module,
.internal = nullptr
};
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// SPDX-License-Identifier: Apache-2.0
#include <tactility/check.h>
#include <tactility/driver.h>
#include <tactility/module.h>
extern "C" {
extern Driver cst328_driver;
static error_t start() {
/* We crash when construct fails, because if a single driver fails to construct,
* there is no guarantee that the previously constructed drivers can be destroyed */
check(driver_construct_add(&cst328_driver) == ERROR_NONE);
return ERROR_NONE;
}
static error_t stop() {
/* We crash when destruct fails, because if a single driver fails to destruct,
* there is no guarantee that the previously destroyed drivers can be recovered */
check(driver_remove_destruct(&cst328_driver) == ERROR_NONE);
return ERROR_NONE;
}
Module cst328_module = {
.name = "cst328",
.start = start,
.stop = stop,
.symbols = nullptr,
.internal = nullptr
};
} // extern "C"
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cmake_minimum_required(VERSION 3.20)
include("${CMAKE_CURRENT_LIST_DIR}/../../Buildscripts/module.cmake")
file(GLOB_RECURSE SOURCE_FILES "source/*.c*")
tactility_add_module(cst66xx-module
SRCS ${SOURCE_FILES}
INCLUDE_DIRS include/
REQUIRES TactilityKernel
)
@@ -0,0 +1,41 @@
description: >
Hynitron CST66xx capacitive touch controller. Vendor docs for the LilyGO T-Deck Max label
this chip "CST328", but the vendor HynTouch driver probes cst66xx first and that is what
answers on that board. This is a minimal, single-touch port of the vendor's
hyn_cst66xx.c protocol.
include: ["i2c-device.yaml"]
compatible: "hynitron,cst66xx"
bus: i2c
properties:
x-max:
type: int
required: true
description: Maximum X coordinate reported by the controller (typically the panel's horizontal resolution)
y-max:
type: int
required: true
description: Maximum Y coordinate reported by the controller (typically the panel's vertical resolution)
swap-xy:
type: boolean
default: false
description: Swap the X and Y axes
mirror-x:
type: boolean
default: false
description: Mirror the X axis
mirror-y:
type: boolean
default: false
description: Mirror the Y axis
pin-reset:
type: phandles
required: true
description: Reset GPIO pin. The chip only re-initializes into normal reporting mode after a clean reset pulse.
reset-active-high:
type: boolean
default: false
description: Whether the reset pin is active high
+3
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@@ -0,0 +1,3 @@
dependencies:
- TactilityKernel
bindings: bindings
@@ -0,0 +1,7 @@
// SPDX-License-Identifier: Apache-2.0
#pragma once
#include <tactility/bindings/bindings.h>
#include <drivers/cst66xx.h>
DEFINE_DEVICETREE(cst66xx, struct Cst66xxConfig)
@@ -0,0 +1,14 @@
// SPDX-License-Identifier: Apache-2.0
#pragma once
#include <tactility/module.h>
#ifdef __cplusplus
extern "C" {
#endif
extern struct Module cst66xx_module;
#ifdef __cplusplus
}
#endif
@@ -0,0 +1,27 @@
// SPDX-License-Identifier: Apache-2.0
#pragma once
#ifdef __cplusplus
extern "C" {
#endif
#include <stdint.h>
#include <stdbool.h>
#include <tactility/drivers/gpio.h>
struct Cst66xxConfig {
// Devicetree address hint (0x1A on the LilyGO T-Deck Max).
uint8_t address;
uint16_t x_max;
uint16_t y_max;
bool swap_xy;
bool mirror_x;
bool mirror_y;
struct GpioPinSpec pin_reset;
bool reset_active_high;
};
#ifdef __cplusplus
}
#endif
+266
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@@ -0,0 +1,266 @@
// SPDX-License-Identifier: Apache-2.0
#include <drivers/cst66xx.h>
#include <cst66xx_module.h>
#include <tactility/check.h>
#include <tactility/delay.h>
#include <tactility/device.h>
#include <tactility/driver.h>
#include <tactility/drivers/gpio_controller.h>
#include <tactility/drivers/gpio_descriptor.h>
#include <tactility/drivers/i2c_controller.h>
#include <tactility/drivers/pointer.h>
#include <tactility/error.h>
#include <tactility/log.h>
#include <cstdlib>
#include <utility>
#define TAG "CST66xx"
#define GET_CONFIG(device) (static_cast<const Cst66xxConfig*>((device)->config))
static const TickType_t I2C_TIMEOUT = pdMS_TO_TICKS(20);
// The protocol uses 4-byte register addresses, ported from the vendor's lib/HynTouch/src/hyn_cst66xx.c
// (see Devices/lilygo-tdeck-max's former Source/devices/Cst66xxTouch.cpp for the pre-migration history).
// Normal-mode setup sequence (cst66xx_set_workmode, NOMAL_MODE).
static constexpr uint8_t CMD_DISABLE_LP_I2C[4] = { 0xD0, 0x00, 0x04, 0x00 };
static constexpr uint8_t CMD_NORMAL_A[4] = { 0xD0, 0x00, 0x00, 0x00 };
static constexpr uint8_t CMD_NORMAL_B[4] = { 0xD0, 0x00, 0x0C, 0x00 };
static constexpr uint8_t CMD_NORMAL_C[4] = { 0xD0, 0x00, 0x01, 0x00 };
// Read-point register: write these 4 bytes, then read the touch frame.
static constexpr uint8_t REG_READ_POINT[4] = { 0xD0, 0x07, 0x00, 0x00 };
// Acknowledge/clear after each read.
static constexpr uint8_t CMD_ACK[4] = { 0xD0, 0x00, 0x02, 0xAB };
// Identity/config register (cst66xx_updata_tpinfo): read 50 bytes; buf[2]==0xCA && buf[3]==0xCA confirms a CST66xx.
static constexpr uint8_t REG_INFO[4] = { 0xD0, 0x03, 0x00, 0x00 };
struct Cst66xxInternal {
int16_t last_x;
int16_t last_y;
bool has_point;
bool swap_xy;
bool mirror_x;
bool mirror_y;
};
// region Driver lifecycle
static void set_normal_mode(Device* i2c, uint8_t address) {
i2c_controller_write(i2c, address, CMD_DISABLE_LP_I2C, sizeof(CMD_DISABLE_LP_I2C), I2C_TIMEOUT);
delay_millis(1);
i2c_controller_write(i2c, address, CMD_DISABLE_LP_I2C, sizeof(CMD_DISABLE_LP_I2C), I2C_TIMEOUT);
i2c_controller_write(i2c, address, CMD_NORMAL_A, sizeof(CMD_NORMAL_A), I2C_TIMEOUT);
i2c_controller_write(i2c, address, CMD_NORMAL_B, sizeof(CMD_NORMAL_B), I2C_TIMEOUT);
i2c_controller_write(i2c, address, CMD_NORMAL_C, sizeof(CMD_NORMAL_C), I2C_TIMEOUT);
}
static void perform_hardware_reset(const Cst66xxConfig* config) {
if (config->pin_reset.gpio_controller == nullptr) {
return;
}
auto* rst = gpio_descriptor_acquire(config->pin_reset.gpio_controller, config->pin_reset.pin, GPIO_OWNER_GPIO);
if (rst == nullptr) {
return;
}
gpio_descriptor_set_flags(rst, GPIO_FLAG_DIRECTION_OUTPUT);
gpio_descriptor_set_level(rst, config->reset_active_high);
delay_millis(10);
gpio_descriptor_set_level(rst, !config->reset_active_high);
gpio_descriptor_release(rst);
// The reset pulse exits boot mode; give the controller time to re-init.
delay_millis(80);
}
static error_t start(Device* device) {
auto* parent = device_get_parent(device);
check(device_get_type(parent) == &I2C_CONTROLLER_TYPE);
const auto* config = GET_CONFIG(device);
auto* internal = static_cast<Cst66xxInternal*>(malloc(sizeof(Cst66xxInternal)));
if (internal == nullptr) {
return ERROR_OUT_OF_MEMORY;
}
internal->last_x = 0;
internal->last_y = 0;
internal->has_point = false;
internal->swap_xy = config->swap_xy;
internal->mirror_x = config->mirror_x;
internal->mirror_y = config->mirror_y;
perform_hardware_reset(config);
// Put the controller into normal reporting mode and verify the identity. The first read
// after reset can miss, so retry like the vendor's cst66xx_updata_tpinfo (read 0xD0030000,
// expect buf[2]==buf[3]==0xCA).
bool confirmed = false;
for (int attempt = 0; attempt < 5 && !confirmed; ++attempt) {
set_normal_mode(parent, config->address);
uint8_t info[50] = {};
if (i2c_controller_write(parent, config->address, REG_INFO, sizeof(REG_INFO), I2C_TIMEOUT) == ERROR_NONE &&
i2c_controller_read(parent, config->address, info, sizeof(info), I2C_TIMEOUT) == ERROR_NONE &&
info[2] == 0xCA && info[3] == 0xCA) {
confirmed = true;
} else {
delay_millis(10);
}
}
if (confirmed) {
LOG_I(TAG, "CST66xx initialised");
} else {
LOG_W(TAG, "CST66xx identity not confirmed (continuing)");
}
device_set_driver_data(device, internal);
return ERROR_NONE;
}
static error_t stop(Device* device) {
auto* internal = static_cast<Cst66xxInternal*>(device_get_driver_data(device));
free(internal);
device_set_driver_data(device, nullptr);
return ERROR_NONE;
}
// endregion
// region PointerApi
static error_t cst66xx_read_data(Device* device, TickType_t /*timeout*/) {
auto* internal = static_cast<Cst66xxInternal*>(device_get_driver_data(device));
const auto* config = GET_CONFIG(device);
auto* parent = device_get_parent(device);
// CST66xx frame (cst66xx_report): write the read-point register, then read 9 bytes.
// buf[2]=report type (0xFF=position/key), buf[3] low nibble = finger count, high nibble =
// key count. The first 5-byte slot (buf[4..8]) is a key slot when key count > 0, otherwise
// the first finger; further fingers, if any, follow at buf[index+...].
uint8_t buf[9] = {};
error_t err = i2c_controller_write(parent, config->address, REG_READ_POINT, sizeof(REG_READ_POINT), I2C_TIMEOUT);
if (err == ERROR_NONE) {
err = i2c_controller_read(parent, config->address, buf, sizeof(buf), I2C_TIMEOUT);
}
if (err != ERROR_NONE) {
return ERROR_RESOURCE;
}
// Acknowledge/clear the frame after every read.
i2c_controller_write(parent, config->address, CMD_ACK, sizeof(CMD_ACK), I2C_TIMEOUT);
const uint8_t reportType = buf[2];
const uint8_t fingerCount = buf[3] & 0x0F;
const uint8_t keyCount = (buf[3] & 0xF0) >> 4;
// The controller also reports the three bezel touch-keys (heart/speech-bubble/paper-airplane)
// mutually exclusively with finger coordinates in this same frame shape. Kernel drivers don't
// have a home for UI-navigation policy (see the CST66xx driver's module README), so key frames
// are just treated as "no touch" here.
if ((reportType == 0xFF && keyCount > 0) || reportType != 0xFF || fingerCount < 1) {
internal->has_point = false;
return ERROR_NONE;
}
// First finger's slot follows any key slots.
const uint8_t index = keyCount * 5;
const uint8_t event = buf[index + 8] >> 4; // 0 = up
if (event == 0) {
internal->has_point = false;
return ERROR_NONE;
}
int16_t rawX = static_cast<int16_t>(buf[index + 4] | (static_cast<uint16_t>(buf[index + 7] & 0x0F) << 8));
int16_t rawY = static_cast<int16_t>(buf[index + 5] | (static_cast<uint16_t>(buf[index + 7] & 0xF0) << 4));
if (internal->swap_xy) {
std::swap(rawX, rawY);
}
if (internal->mirror_x) {
rawX = static_cast<int16_t>(config->x_max - 1 - rawX);
}
if (internal->mirror_y) {
rawY = static_cast<int16_t>(config->y_max - 1 - rawY);
}
internal->last_x = rawX;
internal->last_y = rawY;
internal->has_point = true;
return ERROR_NONE;
}
static bool cst66xx_get_touched_points(Device* device, uint16_t* x, uint16_t* y, uint16_t* strength, uint8_t* point_count, uint8_t max_point_count) {
auto* internal = static_cast<Cst66xxInternal*>(device_get_driver_data(device));
if (!internal->has_point || max_point_count < 1) {
*point_count = 0;
return false;
}
x[0] = static_cast<uint16_t>(internal->last_x);
y[0] = static_cast<uint16_t>(internal->last_y);
if (strength != nullptr) {
strength[0] = 0;
}
*point_count = 1;
return true;
}
static error_t cst66xx_set_swap_xy(Device* device, bool swap) {
static_cast<Cst66xxInternal*>(device_get_driver_data(device))->swap_xy = swap;
return ERROR_NONE;
}
static error_t cst66xx_get_swap_xy(Device* device, bool* swap) {
*swap = static_cast<Cst66xxInternal*>(device_get_driver_data(device))->swap_xy;
return ERROR_NONE;
}
static error_t cst66xx_set_mirror_x(Device* device, bool mirror) {
static_cast<Cst66xxInternal*>(device_get_driver_data(device))->mirror_x = mirror;
return ERROR_NONE;
}
static error_t cst66xx_get_mirror_x(Device* device, bool* mirror) {
*mirror = static_cast<Cst66xxInternal*>(device_get_driver_data(device))->mirror_x;
return ERROR_NONE;
}
static error_t cst66xx_set_mirror_y(Device* device, bool mirror) {
static_cast<Cst66xxInternal*>(device_get_driver_data(device))->mirror_y = mirror;
return ERROR_NONE;
}
static error_t cst66xx_get_mirror_y(Device* device, bool* mirror) {
*mirror = static_cast<Cst66xxInternal*>(device_get_driver_data(device))->mirror_y;
return ERROR_NONE;
}
// enter_sleep/exit_sleep are not exposed: the ported protocol has no equivalent commands.
// endregion
static const PointerApi cst66xx_pointer_api = {
.enter_sleep = nullptr,
.exit_sleep = nullptr,
.read_data = cst66xx_read_data,
.get_touched_points = cst66xx_get_touched_points,
.set_swap_xy = cst66xx_set_swap_xy,
.get_swap_xy = cst66xx_get_swap_xy,
.set_mirror_x = cst66xx_set_mirror_x,
.get_mirror_x = cst66xx_get_mirror_x,
.set_mirror_y = cst66xx_set_mirror_y,
.get_mirror_y = cst66xx_get_mirror_y,
};
Driver cst66xx_driver = {
.name = "cst66xx",
.compatible = (const char*[]) { "hynitron,cst66xx", nullptr },
.start_device = start,
.stop_device = stop,
.api = &cst66xx_pointer_api,
.device_type = &POINTER_TYPE,
.owner = &cst66xx_module,
.internal = nullptr
};
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// SPDX-License-Identifier: Apache-2.0
#include <tactility/check.h>
#include <tactility/driver.h>
#include <tactility/module.h>
extern "C" {
extern Driver cst66xx_driver;
static error_t start() {
/* We crash when construct fails, because if a single driver fails to construct,
* there is no guarantee that the previously constructed drivers can be destroyed */
check(driver_construct_add(&cst66xx_driver) == ERROR_NONE);
return ERROR_NONE;
}
static error_t stop() {
/* We crash when destruct fails, because if a single driver fails to destruct,
* there is no guarantee that the previously destroyed drivers can be recovered */
check(driver_remove_destruct(&cst66xx_driver) == ERROR_NONE);
return ERROR_NONE;
}
Module cst66xx_module = {
.name = "cst66xx",
.start = start,
.stop = stop,
.symbols = nullptr,
.internal = nullptr
};
} // extern "C"
+11
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@@ -0,0 +1,11 @@
cmake_minimum_required(VERSION 3.20)
include("${CMAKE_CURRENT_LIST_DIR}/../../Buildscripts/module.cmake")
file(GLOB_RECURSE SOURCE_FILES "source/*.c*")
tactility_add_module(drv2605-module
SRCS ${SOURCE_FILES}
INCLUDE_DIRS include/
REQUIRES TactilityKernel
)
@@ -0,0 +1,23 @@
description: >
Texas Instruments DRV2605/DRV2604 (and low-voltage L-variant) haptic motor driver for ERM/LRA
actuators, with an onboard waveform effect library. Brought up in open-loop ERM mode (matches
the deprecated HAL's Drv2605 - closed-loop/LRA configuration isn't ported). Exposes a generic
"haptic" device (see tactility/drivers/haptic.h) for playing further effects at runtime.
include: ["i2c-device.yaml"]
compatible: "ti,drv2605"
bus: i2c
properties:
autoplay:
type: boolean
default: true
description: Play startup-waveform once at start-up (e.g. a startup "buzz" to confirm the motor works)
startup-waveform:
type: array
element-type: uint8_t
description: >
Effect sequence (waveform library indices, 0 ends the sequence) played once at start-up
when autoplay is set. Up to 8 bytes. Omit for the default 3x strong-click "buzz" ({1,1,1}).
+3
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@@ -0,0 +1,3 @@
dependencies:
- TactilityKernel
bindings: bindings
@@ -0,0 +1,7 @@
// SPDX-License-Identifier: Apache-2.0
#pragma once
#include <tactility/bindings/bindings.h>
#include <drivers/drv2605.h>
DEFINE_DEVICETREE(drv2605, struct Drv2605Config)
@@ -0,0 +1,23 @@
// SPDX-License-Identifier: Apache-2.0
#pragma once
#ifdef __cplusplus
extern "C" {
#endif
#include <stdbool.h>
#include <stdint.h>
struct Drv2605Config {
// Devicetree address hint (0x5A).
uint8_t address;
bool autoplay;
// WaveSequence1.. effect slots to play once at start-up when autoplay is set. NULL/0-length
// falls back to a 3x strong-click "buzz" ({1,1,1}).
const uint8_t* startup_waveform;
uint32_t startup_waveform_length;
};
#ifdef __cplusplus
}
#endif
@@ -0,0 +1,14 @@
// SPDX-License-Identifier: Apache-2.0
#pragma once
#include <tactility/module.h>
#ifdef __cplusplus
extern "C" {
#endif
extern struct Module drv2605_module;
#ifdef __cplusplus
}
#endif
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@@ -0,0 +1,151 @@
// SPDX-License-Identifier: Apache-2.0
#include <drivers/drv2605.h>
#include <drv2605_module.h>
#include <tactility/device.h>
#include <tactility/driver.h>
#include <tactility/drivers/haptic.h>
#include <tactility/drivers/i2c_controller.h>
#include <tactility/error.h>
#include <tactility/log.h>
#define TAG "DRV2605"
#define GET_CONFIG(device) (static_cast<const Drv2605Config*>((device)->config))
static const TickType_t I2C_TIMEOUT = pdMS_TO_TICKS(50);
// DRV260x register map (ported from the deprecated HAL's Drv2605.h/.cpp).
static constexpr uint8_t REG_STATUS = 0x00;
static constexpr uint8_t REG_MODE = 0x01;
static constexpr uint8_t REG_REALTIME_PLAYBACK_INPUT = 0x02;
static constexpr uint8_t REG_WAVE_LIBRARY_SELECT = 0x03;
static constexpr uint8_t REG_WAVE_SEQUENCE_1 = 0x04; // WaveSequence1..8 = 0x04..0x0B
static constexpr uint8_t REG_GO = 0x0C;
static constexpr uint8_t REG_OVERDRIVE_TIME_OFFSET = 0x0D;
static constexpr uint8_t REG_SUSTAIN_TIME_OFFSET_POSITIVE = 0x0E;
static constexpr uint8_t REG_SUSTAIN_TIME_OFFSET_NEGATIVE = 0x0F;
static constexpr uint8_t REG_BRAKE_TIME_OFFSET = 0x10;
static constexpr uint8_t REG_AUDIO_INPUT_LEVEL_MAX = 0x13;
static constexpr uint8_t REG_FEEDBACK = 0x1A;
static constexpr uint8_t REG_CONTROL3 = 0x1D;
static constexpr uint8_t FEEDBACK_N_ERM_LRA = 1u << 7;
static constexpr uint8_t CONTROL3_ERM_OPEN_LOOP = 1u << 5;
// 3x strong-click "buzz", matching the deprecated HAL's Drv2605::setWaveFormForBuzz().
static constexpr uint8_t DEFAULT_STARTUP_WAVEFORM[] = { 1, 1, 1, 0 };
extern "C" {
// region HapticApi
static error_t set_waveform(Device* device, uint8_t slot, uint8_t waveform) {
const auto* config = GET_CONFIG(device);
auto* i2c = device_get_parent(device);
return i2c_controller_register8_set(i2c, config->address, static_cast<uint8_t>(REG_WAVE_SEQUENCE_1 + slot), waveform, I2C_TIMEOUT);
}
static error_t select_library(Device* device, uint8_t library) {
const auto* config = GET_CONFIG(device);
auto* i2c = device_get_parent(device);
return i2c_controller_register8_set(i2c, config->address, REG_WAVE_LIBRARY_SELECT, library, I2C_TIMEOUT);
}
static error_t start_playback(Device* device) {
const auto* config = GET_CONFIG(device);
auto* i2c = device_get_parent(device);
return i2c_controller_register8_set(i2c, config->address, REG_GO, 0x01, I2C_TIMEOUT);
}
static error_t stop_playback(Device* device) {
const auto* config = GET_CONFIG(device);
auto* i2c = device_get_parent(device);
return i2c_controller_register8_set(i2c, config->address, REG_GO, 0x00, I2C_TIMEOUT);
}
static constexpr HapticApi DRV2605_HAPTIC_API = {
.set_waveform = set_waveform,
.select_library = select_library,
.start_playback = start_playback,
.stop_playback = stop_playback,
};
// endregion
// region Driver lifecycle
static error_t write_waveform_sequence(Device* i2c, uint8_t address, const uint8_t* waveform, uint32_t length) {
for (uint32_t i = 0; i < length && i < 8; i++) {
error_t error = i2c_controller_register8_set(i2c, address, static_cast<uint8_t>(REG_WAVE_SEQUENCE_1 + i), waveform[i], I2C_TIMEOUT);
if (error != ERROR_NONE) {
return error;
}
}
return ERROR_NONE;
}
static error_t start(Device* device) {
auto* i2c = device_get_parent(device);
check(device_get_type(i2c) == &I2C_CONTROLLER_TYPE);
const auto* config = GET_CONFIG(device);
uint8_t status = 0;
if (i2c_controller_register8_get(i2c, config->address, REG_STATUS, &status, I2C_TIMEOUT) != ERROR_NONE) {
LOG_E(TAG, "Failed to read status");
return ERROR_RESOURCE;
}
// Bits[7:5]: 3=DRV2605, 4=DRV2604, 6=DRV2604L, 7=DRV2605L.
uint8_t chip_id = status >> 5;
if (chip_id != 3 && chip_id != 4 && chip_id != 6 && chip_id != 7) {
LOG_E(TAG, "Unknown chip id %02X", chip_id);
return ERROR_RESOURCE;
}
i2c_controller_register8_set(i2c, config->address, REG_MODE, 0x00, I2C_TIMEOUT); // Exit standby
i2c_controller_register8_set(i2c, config->address, REG_REALTIME_PLAYBACK_INPUT, 0x00, I2C_TIMEOUT); // Disable
// Baseline single strong-click sequence (matches Drv2605::setWaveFormForClick()).
write_waveform_sequence(i2c, config->address, (const uint8_t[]) { 1, 0 }, 2);
i2c_controller_register8_set(i2c, config->address, REG_OVERDRIVE_TIME_OFFSET, 0x00, I2C_TIMEOUT);
i2c_controller_register8_set(i2c, config->address, REG_SUSTAIN_TIME_OFFSET_POSITIVE, 0x00, I2C_TIMEOUT);
i2c_controller_register8_set(i2c, config->address, REG_SUSTAIN_TIME_OFFSET_NEGATIVE, 0x00, I2C_TIMEOUT);
i2c_controller_register8_set(i2c, config->address, REG_BRAKE_TIME_OFFSET, 0x00, I2C_TIMEOUT);
i2c_controller_register8_set(i2c, config->address, REG_AUDIO_INPUT_LEVEL_MAX, 0x64, I2C_TIMEOUT);
// ERM open loop.
i2c_controller_register8_reset_bits(i2c, config->address, REG_FEEDBACK, FEEDBACK_N_ERM_LRA, I2C_TIMEOUT);
i2c_controller_register8_set_bits(i2c, config->address, REG_CONTROL3, CONTROL3_ERM_OPEN_LOOP, I2C_TIMEOUT);
if (config->autoplay) {
const uint8_t* waveform = config->startup_waveform;
uint32_t length = config->startup_waveform_length;
if (waveform == nullptr || length == 0) {
waveform = DEFAULT_STARTUP_WAVEFORM;
length = sizeof(DEFAULT_STARTUP_WAVEFORM);
}
write_waveform_sequence(i2c, config->address, waveform, length);
i2c_controller_register8_set(i2c, config->address, REG_GO, 0x01, I2C_TIMEOUT);
}
return ERROR_NONE;
}
static error_t stop(Device*) {
return ERROR_NONE;
}
// endregion
Driver drv2605_driver = {
.name = "drv2605",
.compatible = (const char*[]) { "ti,drv2605", nullptr },
.start_device = start,
.stop_device = stop,
.api = &DRV2605_HAPTIC_API,
.device_type = &HAPTIC_TYPE,
.owner = &drv2605_module,
.internal = nullptr
};
}
+28
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@@ -0,0 +1,28 @@
// SPDX-License-Identifier: Apache-2.0
#include <tactility/check.h>
#include <tactility/driver.h>
#include <tactility/module.h>
extern "C" {
extern Driver drv2605_driver;
static error_t start() {
check(driver_construct_add(&drv2605_driver) == ERROR_NONE);
return ERROR_NONE;
}
static error_t stop() {
check(driver_remove_destruct(&drv2605_driver) == ERROR_NONE);
return ERROR_NONE;
}
Module drv2605_module = {
.name = "drv2605",
.start = start,
.stop = stop,
.symbols = nullptr,
.internal = nullptr
};
} // extern "C"
+11
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@@ -0,0 +1,11 @@
cmake_minimum_required(VERSION 3.20)
include("${CMAKE_CURRENT_LIST_DIR}/../../Buildscripts/module.cmake")
file(GLOB_RECURSE SOURCE_FILES "source/*.c*")
tactility_add_module(jd9165-module
SRCS ${SOURCE_FILES}
INCLUDE_DIRS include/
REQUIRES TactilityKernel platform-esp32 esp_lcd_jd9165 esp_lcd driver esp_hw_support
)
+195
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@@ -0,0 +1,195 @@
Apache License
==============
_Version 2.0, January 2004_
_&lt;<http://www.apache.org/licenses/>&gt;_
### Terms and Conditions for use, reproduction, and distribution
#### 1. Definitions
“License” shall mean the terms and conditions for use, reproduction, and
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@@ -0,0 +1,126 @@
description: >
JDI JD9165 MIPI-DSI display panel, driven over ESP-IDF's esp_lcd_jd9165 component (DPI/DBI
interface, ESP32-P4 and other SOC_MIPI_DSI_SUPPORTED targets only). Owns the MIPI DSI PHY LDO
channel and DSI bus directly, so unlike SPI/RGB panels it has no parent bus controller device.
compatible: "jdi,jd9165"
properties:
horizontal-resolution:
type: int
required: true
description: Horizontal resolution in pixels
vertical-resolution:
type: int
required: true
description: Vertical resolution in pixels
bits-per-pixel:
type: int
default: 16
description: Color depth in bits per pixel (16, 18 or 24)
bgr-order:
type: boolean
default: false
description: Use BGR element order instead of RGB
invert-color:
type: boolean
default: false
description: Invert the panel's color output
mirror-x:
type: boolean
default: false
description: Mirror the X axis
mirror-y:
type: boolean
default: false
description: Mirror the Y axis
pin-reset:
type: phandles
default: GPIO_PIN_SPEC_NONE
description: Reset GPIO pin. Falls back to a software reset (sent over the DBI command
interface) if not set.
reset-active-high:
type: boolean
default: false
description: Whether the reset pin is active high
ldo-channel:
type: int
required: true
description: LDO channel index powering the MIPI DSI PHY (chan_id in esp_ldo_channel_config_t)
ldo-voltage-mv:
type: int
required: true
description: Voltage to supply to the MIPI DSI PHY LDO channel, in mV
dsi-bus-id:
type: int
default: 0
description: Which DSI controller to use, index from 0
num-data-lanes:
type: int
default: 2
description: Number of MIPI DSI data lanes. 0 falls back to the maximum available.
lane-bit-rate-mbps:
type: int
required: true
description: MIPI DSI lane bit rate, in Mbps
dpi-clock-freq-mhz:
type: int
required: true
description: MIPI DPI clock frequency, in MHz
hsync-pulse-width:
type: int
required: true
description: Horizontal sync width, in PCLK periods
hsync-back-porch:
type: int
required: true
description: Number of PCLK periods between hsync and the start of line active data
hsync-front-porch:
type: int
required: true
description: Number of PCLK periods between the end of active data and the next hsync
vsync-pulse-width:
type: int
required: true
description: Vertical sync width, in lines
vsync-back-porch:
type: int
required: true
description: Number of invalid lines between vsync and the start of the frame
vsync-front-porch:
type: int
required: true
description: Number of invalid lines between the end of the frame and the next vsync
num-fbs:
type: int
default: 1
description: Number of screen-sized frame buffers to allocate (0 or 1 = single-buffered)
use-dma2d:
type: boolean
default: true
description: Use DMA2D to copy user buffers into the frame buffer when necessary (only
meaningful on SOC_DMA2D_SUPPORTED targets - must be false otherwise)
disable-lp:
type: boolean
default: false
description: Disable MIPI DSI low-power mode
allow-tearing:
type: boolean
default: false
description: By default, when draw_bitmap's color_data is one of the panel's own frame
buffers (i.e. LVGL is bound directly onto them), draw_bitmap waits for a full scan-out to
complete before returning so the caller can't start overwriting a buffer still being
displayed. Set this to trade away that tear-free guarantee for lower latency (e.g. when
other tasks occasionally block timing for long enough that waiting causes visible stalls).
init-sequence:
type: array
element-type: uint8_t
description: >
Custom vendor bring-up sequence, flattened into bytes as a run of
[cmd, data-length, delay-ms, data-length bytes of data...] entries, e.g.
`init-sequence = [0x11 0 120 0x29 0 20];`.
Omit to use the JD9165 component's own built-in default sequence.
backlight:
type: phandle
default: "NULL"
description: Optional reference to this display's backlight device
+3
View File
@@ -0,0 +1,3 @@
dependencies:
- TactilityKernel
bindings: bindings
@@ -0,0 +1,10 @@
// SPDX-License-Identifier: Apache-2.0
#pragma once
#include <tactility/bindings/bindings.h>
#include <drivers/jd9165.h>
// The devicetree compiler derives the expected config typedef name from the compatible
// string's suffix (e.g. "jdi,jd9165" -> jd9165_config_dt), not from the node name or driver
// name, so the tag here must match that exactly.
DEFINE_DEVICETREE(jd9165, struct Jd9165Config)
@@ -0,0 +1,69 @@
// SPDX-License-Identifier: Apache-2.0
#pragma once
#ifdef __cplusplus
extern "C" {
#endif
#include <stdint.h>
#include <stdbool.h>
#include <tactility/device.h>
#include <tactility/drivers/gpio.h>
struct Jd9165Config {
uint16_t horizontal_resolution;
uint16_t vertical_resolution;
uint8_t bits_per_pixel;
bool bgr_order;
bool invert_color;
bool mirror_x;
bool mirror_y;
// Reset pin for the panel. GPIO_PIN_SPEC_NONE falls back to a software reset sent over the
// DBI command interface (see esp_lcd_jd9165's panel_jd9165_reset()).
struct GpioPinSpec pin_reset;
bool reset_active_high;
// LDO channel powering the MIPI DSI PHY - the PHY has no power of its own until this is
// acquired, so it must happen before the DSI bus is created. Both fields are int32_t (not
// uint32_t) to exactly match esp_ldo_channel_config_t's plain `int` fields - assigning a
// uint32_t into that struct's brace-init would be a narrowing conversion (-Werror=narrowing).
int32_t ldo_channel;
int32_t ldo_voltage_mv;
uint8_t dsi_bus_id;
// Number of MIPI DSI data lanes. 0 falls back to the maximum available.
uint8_t num_data_lanes;
uint32_t lane_bit_rate_mbps;
uint32_t dpi_clock_freq_mhz;
uint32_t hsync_pulse_width;
uint32_t hsync_back_porch;
uint32_t hsync_front_porch;
uint32_t vsync_pulse_width;
uint32_t vsync_back_porch;
uint32_t vsync_front_porch;
// Number of screen-sized frame buffers the driver allocates (0 or 1 = single-buffered).
uint8_t num_fbs;
bool use_dma2d;
bool disable_lp;
// See the 'allow-tearing' binding property.
bool allow_tearing;
// Custom vendor init sequence, flattened as bytes: a run of
// [cmd, data_len, delay_ms, data_len bytes of data...] entries. NULL/0 falls back to the
// JD9165 component's own built-in default sequence (see vendor_specific_init_default in
// esp_lcd_jd9165.c) - just a sleep-out + display-on, not guaranteed to match any particular
// panel's actual bring-up requirements.
const uint8_t* init_sequence;
uint32_t init_sequence_length;
// Optional reference to this display's backlight device, NULL if none.
struct Device* backlight;
};
#ifdef __cplusplus
}
#endif

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