Ken Van Hoeylandt
d896657bf9
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
96 lines
2.7 KiB
C++
96 lines
2.7 KiB
C++
// SPDX-License-Identifier: Apache-2.0
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#include <lilygo/drivers/tpager_encoder_input.h>
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#include <lilygo/drivers/tpager_encoder.h>
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#include <tactility/device.h>
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#include <tactility/log.h>
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constexpr auto* TAG = "tpager_encoder";
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namespace tpager_encoder {
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static lv_indev_t* g_indev = nullptr;
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static Device* g_device = nullptr;
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// Ported from the deprecated HAL's TpagerEncoder::readCallback(). g_raw_total reconstructs the
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// old absolute PCNT counter value (the kernel driver's read_delta() consumes/resets on every
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// call instead of accumulating forever), so the hysteresis below behaves identically: only a
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// run of more than pulses_click raw pulses commits to a detent, and any remainder is discarded
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// rather than carried into the next read (matches the original's pulses_prev = pulses jump).
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static void read_cb(lv_indev_t*, lv_indev_data_t* data) {
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constexpr int32_t pulses_click = 4;
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static int32_t raw_total = 0;
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static int32_t committed_total = 0;
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constexpr int enter_filter_threshold = 2;
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static int enter_filter = 0;
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data->enc_diff = 0;
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data->state = LV_INDEV_STATE_RELEASED;
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int32_t delta = 0;
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tpager_encoder_read_delta(g_device, &delta);
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raw_total += delta;
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int32_t pulse_diff = raw_total - committed_total;
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if (pulse_diff > pulses_click || pulse_diff < -pulses_click) {
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data->enc_diff = static_cast<int16_t>(pulse_diff / pulses_click);
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committed_total = raw_total;
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}
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bool pressed = false;
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tpager_encoder_get_button_pressed(g_device, &pressed);
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if (pressed && enter_filter < enter_filter_threshold) {
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enter_filter++;
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}
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if (!pressed && enter_filter > 0) {
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enter_filter--;
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}
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if (enter_filter == enter_filter_threshold) {
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data->state = LV_INDEV_STATE_PRESSED;
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}
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}
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lv_indev_t* init() {
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if (g_indev != nullptr) {
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LOG_W(TAG, "Already initialized");
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return g_indev;
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}
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if (device_get_first_active_by_type(&TPAGER_ENCODER_TYPE, &g_device) != ERROR_NONE) {
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LOG_E(TAG, "tpager_encoder kernel device not found or not started");
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return nullptr;
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}
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g_indev = lv_indev_create();
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if (g_indev == nullptr) {
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LOG_E(TAG, "Failed to register LVGL input device");
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device_put(g_device);
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g_device = nullptr;
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return nullptr;
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}
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lv_indev_set_type(g_indev, LV_INDEV_TYPE_ENCODER);
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lv_indev_set_read_cb(g_indev, read_cb);
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LOG_I(TAG, "Initialized");
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return g_indev;
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}
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void deinit() {
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if (g_indev == nullptr) {
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return;
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}
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lv_indev_delete(g_indev);
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g_indev = nullptr;
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device_put(g_device);
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g_device = nullptr;
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LOG_I(TAG, "Deinitialized");
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}
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}
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