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75 lines
2.4 KiB
C++
75 lines
2.4 KiB
C++
// SPDX-License-Identifier: Apache-2.0
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#include "cl32_v4_light.h"
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#include "cl32_v4.h"
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#include <tactility/device.h>
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#include <tactility/drivers/backlight.h>
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#include <tactility/drivers/i2c_controller.h>
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#include <tactility/log.h>
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#include <tactility/module.h>
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extern Module cl32_v04_module;
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constexpr auto* TAG = "cl32-v4-light";
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#define GET_CONFIG(device) (static_cast<const Cl32V4LightConfig*>((device)->config))
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static error_t set_brightness(Device* device, uint8_t brightness) {
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return i2c_controller_register8_set(device_get_parent(device), GET_CONFIG(device)->address, GET_CONFIG(device)->brightness_register, brightness, CL32_V4_CORE_TIMEOUT);
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}
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static error_t set_brightness_default(Device* device) {
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return set_brightness(device, GET_CONFIG(device)->brightness_default);
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}
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static error_t get_brightness(Device* device, uint8_t* out_brightness) {
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return i2c_controller_register8_get(device_get_parent(device), GET_CONFIG(device)->address, GET_CONFIG(device)->brightness_register, out_brightness, CL32_V4_CORE_TIMEOUT);
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}
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static constexpr BacklightApi CL32_V4_LIGHT_API = {
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.set_brightness = set_brightness,
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.set_brightness_default = set_brightness_default,
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.get_brightness = get_brightness,
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.get_min_brightness = nullptr,
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.get_max_brightness = nullptr,
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};
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static error_t start(Device* device) {
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auto* i2c0 = device_get_parent(device);
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if (device_get_type(i2c0) != &I2C_CONTROLLER_TYPE) {
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LOG_E(TAG, "Parent is not an I2C controller");
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return ERROR_RESOURCE;
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}
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const auto* config = GET_CONFIG(device);
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if (config->timeout_seconds > 0) {
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auto timeout_value = config->timeout_seconds * 15;
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if (timeout_value > 255) {
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timeout_value = 255;
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}
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error_t error = i2c_controller_register8_set(i2c0, config->address, config->timeout_register, static_cast<uint8_t>(timeout_value), CL32_V4_CORE_TIMEOUT);
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if (error != ERROR_NONE) {
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LOG_E(TAG, "Failed to set timeout");
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return error;
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}
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}
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return ERROR_NONE;
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}
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static error_t stop(Device*) {
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return ERROR_NONE;
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}
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Driver cl32_v4_light_driver = {
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.name = "cl32-v4-light",
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.compatible = (const char*[]) { "cl32-v4-light", nullptr },
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.start_device = start,
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.stop_device = stop,
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.probe = nullptr,
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.api = &CL32_V4_LIGHT_API,
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.device_type = &BACKLIGHT_TYPE,
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.internal = nullptr,
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};
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