Create hal-device module, fix GPIO, fix tests, fix TactilityC (#471)

* **New Features**
  * Added a HAL device module providing device enumeration, type queries and a HAL↔kernel bridge.

* **Improvements**
  * Integrated HAL module into startup; standardized module names, includes and lifecycle logging; safer file append behavior; broader build support.

* **API Changes**
  * Driver lifecycle now uses explicit add/remove semantics; C and HAL device type/lookup APIs clarified.

* **Chores**
  * Added module README and Apache‑2.0 license; updated build configuration to include the new module.

* **Fixes**
  * Updated tests and object file handling to behave correctly.
This commit is contained in:
Ken Van Hoeylandt
2026-02-01 01:05:16 +01:00
committed by GitHub
parent 5993ceb232
commit 3fe1dc0312
74 changed files with 836 additions and 211 deletions
@@ -0,0 +1,126 @@
// SPDX-License-Identifier: Apache-2.0
#include <tactility/drivers/hal_device.h>
#include <tactility/device.h>
#include <tactility/driver.h>
#include <tactility/log.h>
#include <tactility/hal/Device.h>
#include <memory>
#include <utility>
#define TAG LOG_TAG(HalDevice)
struct HalDevicePrivate {
std::shared_ptr<tt::hal::Device> halDevice;
};
#define GET_DATA(device) ((struct HalDevicePrivate*)device->internal.driver_data)
static enum HalDeviceType getHalDeviceType(tt::hal::Device::Type type) {
switch (type) {
case tt::hal::Device::Type::I2c:
return HalDeviceType::HAL_DEVICE_TYPE_I2C;
case tt::hal::Device::Type::Display:
return HalDeviceType::HAL_DEVICE_TYPE_DISPLAY;
case tt::hal::Device::Type::Touch:
return HalDeviceType::HAL_DEVICE_TYPE_TOUCH;
case tt::hal::Device::Type::SdCard:
return HalDeviceType::HAL_DEVICE_TYPE_SDCARD;
case tt::hal::Device::Type::Keyboard:
return HalDeviceType::HAL_DEVICE_TYPE_KEYBOARD;
case tt::hal::Device::Type::Encoder:
return HalDeviceType::HAL_DEVICE_TYPE_ENCODER;
case tt::hal::Device::Type::Power:
return HalDeviceType::HAL_DEVICE_TYPE_POWER;
case tt::hal::Device::Type::Gps:
return HalDeviceType::HAL_DEVICE_TYPE_GPS;
case tt::hal::Device::Type::Other:
return HalDeviceType::HAL_DEVICE_TYPE_OTHER;
default:
LOG_W(TAG, "Device type %d is not implemented", static_cast<int>(type));
return HalDeviceType::HAL_DEVICE_TYPE_OTHER;
}
}
extern "C" {
HalDeviceType hal_device_get_type(struct Device* device) {
auto type = GET_DATA(device)->halDevice->getType();
return getHalDeviceType(type);
}
void hal_device_for_each_of_type(HalDeviceType type, void* context, bool(*onDevice)(struct Device* device, void* context)) {
struct InternalContext {
HalDeviceType typeParam;
void* contextParam;
bool(*onDeviceParam)(struct Device* device, void* context);
};
InternalContext internal_context = {
.typeParam = type,
.contextParam = context,
.onDeviceParam = onDevice
};
for_each_device_of_type(&HAL_DEVICE_TYPE, &internal_context, [](Device* device, void* context){
auto* hal_device_private = GET_DATA(device);
auto* internal_context = static_cast<InternalContext*>(context);
auto hal_device_type = getHalDeviceType(hal_device_private->halDevice->getType());
if (hal_device_type == internal_context->typeParam) {
if (!internal_context->onDeviceParam(device, internal_context->contextParam)) {
return false;
}
}
return true;
});
}
}
namespace tt::hal {
std::shared_ptr<Device> hal_device_get_device(::Device* device) {
auto* hal_device_private = GET_DATA(device);
return hal_device_private->halDevice;
}
void hal_device_set_device(::Device* kernelDevice, std::shared_ptr<Device> halDevice) {
GET_DATA(kernelDevice)->halDevice = std::move(halDevice);
}
}
#pragma region Lifecycle
static error_t start(Device* device) {
LOG_I(TAG, "start %s", device->name);
device->internal.driver_data = new HalDevicePrivate();
return ERROR_NONE;
}
static error_t stop(Device* device) {
LOG_I(TAG, "stop %s", device->name);
delete GET_DATA(device);
return ERROR_NONE;
}
#pragma endregion
extern "C" {
const struct DeviceType HAL_DEVICE_TYPE {0};
extern struct Module hal_device_module;
Driver hal_device_driver = {
.name = "hal-device",
.compatible = (const char*[]) {"hal-device", nullptr},
.startDevice = start,
.stopDevice = stop,
.api = nullptr,
.deviceType = &HAL_DEVICE_TYPE,
.owner = &hal_device_module,
.driver_private = nullptr
};
}
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// SPDX-License-Identifier: Apache-2.0
#include <tactility/hal/Device.h>
#include <tactility/driver.h>
#include <tactility/drivers/hal_device.hpp>
#include <Tactility/Logger.h>
#include <Tactility/RecursiveMutex.h>
#include <algorithm>
namespace tt::hal {
RecursiveMutex mutex;
static Device::Id nextId = 0;
static const auto LOGGER = Logger("Devices");
Device::Device() : id(nextId++) {}
static std::shared_ptr<Device::KernelDeviceHolder> createKernelDeviceHolder(const std::shared_ptr<Device>& device) {
auto kernel_device_name = std::format("hal-device-{}", device->getId());
LOGGER.info("Registering {} with id {} as kernel device {}", device->getName(), device->getId(), kernel_device_name);
auto kernel_device_holder = std::make_shared<Device::KernelDeviceHolder>(kernel_device_name);
auto* kernel_device = kernel_device_holder->device.get();
check(device_construct(kernel_device) == ERROR_NONE);
check(device_add(kernel_device) == ERROR_NONE);
auto* driver = driver_find_compatible("hal-device");
check(driver);
device_set_driver(kernel_device, driver);
check(device_start(kernel_device) == ERROR_NONE);
hal_device_set_device(kernel_device, device);
return kernel_device_holder;
}
static void destroyKernelDeviceHolder(std::shared_ptr<Device::KernelDeviceHolder>& holder) {
auto kernel_device = holder->device.get();
hal_device_set_device(kernel_device, nullptr);
check(device_stop(kernel_device) == ERROR_NONE);
check(device_remove(kernel_device) == ERROR_NONE);
check(device_destruct(kernel_device) == ERROR_NONE);
holder->device = nullptr;
}
void registerDevice(const std::shared_ptr<Device>& device) {
auto scoped_mutex = mutex.asScopedLock();
scoped_mutex.lock();
if (device->getKernelDeviceHolder() == nullptr) {
// Kernel device
auto kernel_device_holder = createKernelDeviceHolder(device);
device->setKernelDeviceHolder(kernel_device_holder);
} else {
LOGGER.warn("Device {} with id {} was already registered", device->getName(), device->getId());
}
}
void deregisterDevice(const std::shared_ptr<Device>& device) {
auto scoped_mutex = mutex.asScopedLock();
scoped_mutex.lock();
// Kernel device
auto kernel_device_holder = device->getKernelDeviceHolder();
if (kernel_device_holder) {
destroyKernelDeviceHolder(kernel_device_holder);
device->setKernelDeviceHolder(nullptr);
} else {
LOGGER.warn("Device {} with id {} was not registered", device->getName(), device->getId());
}
}
template<typename R>
auto toVector(R&& range) {
using T = std::ranges::range_value_t<R>;
std::vector<T> result;
if constexpr (std::ranges::common_range<R>) {
result.reserve(std::ranges::distance(range));
}
std::ranges::copy(range, std::back_inserter(result));
return result;
}
std::vector<std::shared_ptr<Device>> findDevices(const std::function<bool(const std::shared_ptr<Device>&)>& filterFunction) {
auto scoped_mutex = mutex.asScopedLock();
scoped_mutex.lock();
auto devices_view = getDevices() | std::views::filter([&filterFunction](auto& device) {
return filterFunction(device);
});
return toVector(devices_view);
}
std::shared_ptr<Device> _Nullable findDevice(const std::function<bool(const std::shared_ptr<Device>&)>& filterFunction) {
auto scoped_mutex = mutex.asScopedLock();
scoped_mutex.lock();
auto result_set = getDevices() | std::views::filter([&filterFunction](auto& device) {
return filterFunction(device);
});
if (!result_set.empty()) {
return result_set.front();
} else {
return nullptr;
}
}
std::shared_ptr<Device> _Nullable findDevice(std::string name) {
return findDevice([&name](auto& device){
return device->getName() == name;
});
}
std::shared_ptr<Device> _Nullable findDevice(Device::Id id) {
return findDevice([id](auto& device){
return device->getId() == id;
});
}
std::vector<std::shared_ptr<Device>> findDevices(Device::Type type) {
return findDevices([type](auto& device) {
return device->getType() == type;
});
}
std::vector<std::shared_ptr<Device>> getDevices() {
std::vector<std::shared_ptr<Device>> devices;
for_each_device_of_type(&HAL_DEVICE_TYPE, &devices ,[](auto* kernelDevice, auto* context) {
auto devices_ptr = static_cast<std::vector<std::shared_ptr<Device>>*>(context);
auto hal_device = hal_device_get_device(kernelDevice);
(*devices_ptr).push_back(hal_device);
return true;
});
return devices;
}
bool hasDevice(Device::Type type) {
auto scoped_mutex = mutex.asScopedLock();
scoped_mutex.lock();
auto result_set = getDevices() | std::views::filter([&type](auto& device) {
return device->getType() == type;
});
return !result_set.empty();
}
}
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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 hal_device_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(&hal_device_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(&hal_device_driver) == ERROR_NONE);
check(driver_destruct(&hal_device_driver) == ERROR_NONE);
return ERROR_NONE;
}
struct Module hal_device_module = {
.name = "hal-device",
.start = start,
.stop = stop
};
}