124 lines
4.0 KiB
C++
124 lines
4.0 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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//Serial.printf("KBH Claim %x\n", topusage);
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if ((topusage != TOPUSAGE_SYS_CONTROL)
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&& (topusage != TOPUSAGE_CONSUMER_CONTROL)
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) 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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// Hack ignore 0xff00 high words as these are user values...
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if ((usage & 0xffff0000) == 0xff000000) return;
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//Serial.printf("KeyboardHIDExtrasController: topusage= %x usage=%X, value=%d\n", topusage_, 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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