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106 lines
3.0 KiB
C
106 lines
3.0 KiB
C
/*
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* mighty.c
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* mighty
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*
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* Created by Michel DEPEIGE on 03/03/2025.
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* Copyright (c) 2025 Michel DEPEIGE.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the Apache License, Version 2.0 (the "License");
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* You may obtain a copy of the License at:
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*
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*/
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#include <stdio.h>
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#include <string.h>
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#include "driver/gpio.h"
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#include "sdkconfig.h"
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#include "freertos/FreeRTOS.h"
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#include "freertos/queue.h"
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#include "freertos/semphr.h"
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#include "freertos/task.h"
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#include "esp_log.h"
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#include "esp_system.h"
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#include "esp_chip_info.h"
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#if !CONFIG_BT_NIMBLE_ENABLED
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#include "esp_bt_defs.h"
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#include "esp_bt_main.h"
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#include "esp_bt_device.h"
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#include "esp_gap_bt_api.h"
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#endif
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#include "esp_hid_common.h"
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#include "esp_hidh.h"
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#include "esp_hidh_api.h"
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#include "blue.h"
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#include "led.h"
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#include "mighty.h"
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/* functions */
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/*
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* this function will decode a mighty frame and convert it for quadrature tasks
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*
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* Byte | Bits | Description
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* -----+------+---------------------------------------------------------------
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* 0 | 0 | Button 1 (left)
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* 0 | 1 | Button 2 (right)
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* 0 | 2 | Button 3 (middle)
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* 0 | 3-7 | unused
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* 1 | 0-7 | X Displacement
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* 2 | 0-7 | Y Displacement
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* 3 | 0-7 | Ball X Axis
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* 4 | 0-7 | Ball Y Axis
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* 5 | 0-7 | pressure sensor. Follow roughly (0)
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*
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* Original HID dump
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* +-------------------------------------------------+
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* | 05 01 09 02 a1 01 85 02 05 09 19 01 29 04 15 00 |
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* | 09 01 a1 00 15 81 25 7f 09 30 09 31 75 08 95 02 |
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* | 81 06 05 0c 0a 38 02 75 08 95 01 81 06 05 01 09 |
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* | 38 75 08 95 01 81 06 c0 05 ff 09 c0 75 08 95 01 |
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* | 81 02 05 06 09 20 85 47 15 00 25 64 75 08 95 01 |
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* | b1 a2 c0 |
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* +-------------------------------------------------+
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*/
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void mighty_input(esp_hidh_dev_t *dev, uint16_t id, uint8_t *data, uint16_t length) {
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/*
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* Mighty Mouse reports are exactly 6 bytes. Check for size in case of random error
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* The button checks and handling follow the boot protocol
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*
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* Since the first 3 bytes are the same as boot, let's handle some errors here
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* and call the boot decoder with a truncated report (ignore pressure and ball)
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*/
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if (length != 6) {
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xTaskNotify(t_red, LED_ONCE, eSetValueWithOverwrite);
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return;
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}
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if (data[3] || data[4]) {
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xTaskNotify(t_red, LED_ONCE, eSetValueWithOverwrite);
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}
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blue_h_boot(data, 3);
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}
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/*
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* this will tell us if the device is a supported Mighty Mouse
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* PID + VID provided by the HID stack
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*/
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bool mighty_is_mm(uint16_t vid, uint16_t pid) {
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if (vid != MIGHTY_VID)
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return false;
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if (pid != MIGHTY_PID)
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return false;
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return true;
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} |