mirror of
https://github.com/ByteWelder/Tactility.git
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d2048e01b6
* **New Features** * PI4IOE5V6408 I2C I/O expander driver with public GPIO APIs * CLI tool to list devicetree dependencies * **Device Tree Updates** * M5Stack Tab5 configured with two I2C IO expanders; PI4IOE5V6408 binding added * **Build / Tooling** * Devicetree code generation integrated into build; generated artifacts and dynamic dependency resolution exposed * **Refactor** * Kernel/run APIs updated to accept a null‑terminated devicetree modules array; many module symbols renamed * **Documentation** * Added README and Apache‑2.0 license for new driver module
100 lines
4.1 KiB
C++
100 lines
4.1 KiB
C++
// SPDX-License-Identifier: Apache-2.0
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#include <drivers/pi4ioe5v6408.h>
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#include <pi4ioe5v6408_module.h>
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#include <tactility/device.h>
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#include <tactility/driver.h>
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#include <tactility/drivers/i2c_controller.h>
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#include <tactility/log.h>
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#define TAG "PI4IOE5V6408"
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#define GET_CONFIG(device) (static_cast<const Pi4ioe5v6408Config*>((device)->config))
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constexpr auto PI4_REGISTER_DIRECTION = 0x03;
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constexpr auto PI4_REGISTER_OUTPUT_LEVEL = 0x05;
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constexpr auto PI4_REGISTER_OUTPUT_HIGH_IMPEDANCE = 0x07;
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constexpr auto PI4_REGISTER_INPUT_DEFAULT_LEVEL = 0x09;
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constexpr auto PI4_REGISTER_PULL_ENABLE = 0x0B;
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constexpr auto PI4_REGISTER_PULL_SELECT = 0x0D;
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constexpr auto PI4_REGISTER_INPUT_LEVEL = 0x0F;
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constexpr auto PI4_REGISTER_INTERRUPT_MASK = 0x11;
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constexpr auto PI4_REGISTER_INTERRUPT_LEVEL = 0x13;
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static error_t start(Device* device) {
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auto* parent = device_get_parent(device);
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if (device_get_type(parent) != &I2C_CONTROLLER_TYPE) {
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LOG_E(TAG, "Parent device is not I2C");
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return ERROR_RESOURCE;
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}
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LOG_I(TAG, "Started PI4IOE5V6408 device %s", device->name);
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return ERROR_NONE;
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}
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static error_t stop(Device* device) {
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return ERROR_NONE;
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}
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extern "C" {
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error_t pi4ioe5v6408_set_direction(Device* device, uint8_t bits, TickType_t timeout) {
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auto* parent = device_get_parent(device);
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return i2c_controller_register8_set(parent, GET_CONFIG(device)->address, PI4_REGISTER_DIRECTION, bits, timeout);
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}
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error_t pi4ioe5v6408_set_output_level(Device* device, uint8_t bits, TickType_t timeout) {
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auto* parent = device_get_parent(device);
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return i2c_controller_register8_set(parent, GET_CONFIG(device)->address, PI4_REGISTER_OUTPUT_LEVEL, bits, timeout);
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}
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error_t pi4ioe5v6408_get_output_level(Device* device, uint8_t* bits, TickType_t timeout) {
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auto* parent = device_get_parent(device);
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return i2c_controller_register8_get(parent, GET_CONFIG(device)->address, PI4_REGISTER_OUTPUT_LEVEL, bits, timeout);
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}
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error_t pi4ioe5v6408_set_output_high_impedance(struct Device* device, uint8_t bits, TickType_t timeout) {
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auto* parent = device_get_parent(device);
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return i2c_controller_register8_set(parent, GET_CONFIG(device)->address, PI4_REGISTER_OUTPUT_HIGH_IMPEDANCE, bits, timeout);
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}
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error_t pi4ioe5v6408_set_input_default_level(struct Device* device, uint8_t bits, TickType_t timeout) {
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auto* parent = device_get_parent(device);
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return i2c_controller_register8_set(parent, GET_CONFIG(device)->address, PI4_REGISTER_INPUT_DEFAULT_LEVEL, bits, timeout);
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}
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error_t pi4ioe5v6408_set_pull_enable(struct Device* device, uint8_t bits, TickType_t timeout) {
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auto* parent = device_get_parent(device);
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return i2c_controller_register8_set(parent, GET_CONFIG(device)->address, PI4_REGISTER_PULL_ENABLE, bits, timeout);
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}
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error_t pi4ioe5v6408_set_pull_select(struct Device* device, uint8_t bits, TickType_t timeout) {
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auto* parent = device_get_parent(device);
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return i2c_controller_register8_set(parent, GET_CONFIG(device)->address, PI4_REGISTER_PULL_SELECT, bits, timeout);
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}
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error_t pi4ioe5v6408_get_input_level(struct Device* device, uint8_t* bits, TickType_t timeout) {
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auto* parent = device_get_parent(device);
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return i2c_controller_register8_get(parent, GET_CONFIG(device)->address, PI4_REGISTER_INPUT_LEVEL, bits, timeout);
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}
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error_t pi4ioe5v6408_set_interrupt_mask(struct Device* device, uint8_t bits, TickType_t timeout) {
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auto* parent = device_get_parent(device);
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return i2c_controller_register8_set(parent, GET_CONFIG(device)->address, PI4_REGISTER_INTERRUPT_MASK, bits, timeout);
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}
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error_t pi4ioe5v6408_get_interrupt_level(struct Device* device, uint8_t* bits, TickType_t timeout) {
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auto* parent = device_get_parent(device);
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return i2c_controller_register8_get(parent, GET_CONFIG(device)->address, PI4_REGISTER_INTERRUPT_LEVEL, bits, timeout);
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}
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Driver pi4ioe5v6408_driver = {
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.name = "pi4ioe5v6408",
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.compatible = (const char*[]) { "diodes,pi4ioe5v6408", nullptr},
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.start_device = start,
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.stop_device = stop,
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.api = nullptr,
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.device_type = nullptr,
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.owner = &pi4ioe5v6408_module,
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.internal = nullptr
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};
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} |