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https://github.com/gdsports/USBHost_t36
synced 2024-08-13 16:53:54 -04:00
dbe5292471
This delta, adds an extra keyboard object to handle those keys that are not part of the main keyboard class. In particular there are separate HID reports for some of the keys, such as Power keys, and multimedia keys. These reports might be on separate Interface or in cases where the mouse and keyboard are on the same device, the extra reports may be on the Mouse Interface. So far I have not tried to combine with Keyboard object as might require multiple inheritance which I would like to avoid. Also I extended the special key mapping table to map several other keys like F1-12, Arrow, Home/end... To special values where the 0x80 bit is set. I used the same values as used for the Arduino Keyboard library. I did not use their defines as they used defines like KEY_F1, which already exists in core, but in core it is the scan code from the keyboard and not the end user value.
119 lines
3.8 KiB
C++
119 lines
3.8 KiB
C++
/* USB keyboard power Host for Teensy 3.6
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* Copyright 2017 Paul Stoffregen (paul@pjrc.com)
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sublicense, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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*
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* The above copyright notice and this permission notice shall be included
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* in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
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* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
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* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
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* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
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* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*/
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#include <Arduino.h>
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#include "USBHost_t36.h" // Read this header first for key info
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#define TOPUSAGE_SYS_CONTROL 0x10080
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#define TOPUSAGE_CONSUMER_CONTROL 0x0c0001
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bool KeyboardHIDExtrasController::claim_collection(Device_t *dev, uint32_t topusage)
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{
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// Lets try to claim a few specific Keyboard related collection/reports
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if ((topusage != TOPUSAGE_SYS_CONTROL) && (topusage != TOPUSAGE_CONSUMER_CONTROL)) return false;
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// only claim from one physical device
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//Serial.println("KeyboardHIDExtrasController claim collection");
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if (mydevice != NULL && dev != mydevice) return false;
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mydevice = dev;
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collections_claimed_++;
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return true;
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}
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void KeyboardHIDExtrasController::disconnect_collection(Device_t *dev)
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{
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if (--collections_claimed_ == 0) {
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mydevice = NULL;
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}
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}
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void KeyboardHIDExtrasController::hid_input_begin(uint32_t topusage, uint32_t type, int lgmin, int lgmax)
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{
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//Serial.printf("KPC:hid_input_begin TUSE: %x TYPE: %x Range:%x %x\n", topusage, type, lgmin, lgmax);
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topusage_ = topusage; // remember which report we are processing.
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hid_input_begin_ = true;
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hid_input_data_ = false;
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}
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void KeyboardHIDExtrasController::hid_input_data(uint32_t usage, int32_t value)
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{
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//Serial.printf("KeyboardHIDExtrasController: usage=%X, value=%d\n", usage, value);
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// See if the value is in our keys_down list
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usage &= 0xffff; // only keep the actual key
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if (usage == 0) return; // lets not process 0, if only 0 happens, we will handle it on the end to remove existing pressed items.
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// Remember if we have received any logical key up events. Some keyboard appear to send them
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// others do no...
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hid_input_data_ = true;
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uint8_t key_index;
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for (key_index = 0; key_index < count_keys_down_; key_index++) {
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if (keys_down[key_index] == usage) {
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if (value) return; // still down
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if (keyReleasedFunction) {
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keyReleasedFunction(topusage_, usage);
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}
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// Remove from list
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count_keys_down_--;
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for (;key_index < count_keys_down_; key_index++) {
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keys_down[key_index] = keys_down[key_index+1];
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}
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return;
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}
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}
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// Was not in list
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if (!value) return; // still 0
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if (keyPressedFunction) {
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keyPressedFunction(topusage_, usage);
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}
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if (count_keys_down_ < MAX_KEYS_DOWN) {
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keys_down[count_keys_down_++] = usage;
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}
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}
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void KeyboardHIDExtrasController::hid_input_end()
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{
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//Serial.println("KPC:hid_input_end");
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if (hid_input_begin_) {
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// See if we received any data from parser if not, assume all keys released...
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if (!hid_input_data_ ) {
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if (keyPressedFunction) {
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while (count_keys_down_) {
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count_keys_down_--;
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keyReleasedFunction(topusage_, keys_down[count_keys_down_]);
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}
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}
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count_keys_down_ = 0;
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}
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event_ = true;
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hid_input_begin_ = false;
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}
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}
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