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131 lines
3.2 KiB
C++
131 lines
3.2 KiB
C++
/* Copyright (c) 2015, Arduino LLC
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**
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** Original code (pre-library): Copyright (c) 2011, Peter Barrett
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**
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** Permission to use, copy, modify, and/or distribute this software for
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** any purpose with or without fee is hereby granted, provided that the
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** above copyright notice and this permission notice appear in all copies.
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**
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** THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL
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** WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED
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** WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR
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** BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES
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** OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
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** WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
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** ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
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** SOFTWARE.
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*/
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#include "PluggableUSB.h"
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#include "HID.h"
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#if defined(USBCON)
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HID_ HID;
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int HID_::getInterface(uint8_t* interfaceNum)
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{
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interfaceNum[0] += 1; // uses 1
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hidInterface =
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{
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D_INTERFACE(interface(), 1, 3, 0, 0),
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D_HIDREPORT(sizeof_hidReportDescriptor),
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D_ENDPOINT(USB_ENDPOINT_IN(endpoint()), USB_ENDPOINT_TYPE_INTERRUPT, USB_EP_SIZE, 0x01)
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};
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return USB_SendControl(0, &hidInterface, sizeof(hidInterface));
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}
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int HID_::getDescriptor(int8_t t)
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{
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if (HID_REPORT_DESCRIPTOR_TYPE == t) {
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HIDDescriptorListNode* current = rootNode;
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int total = 0;
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while(current != NULL) {
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total += USB_SendControl(TRANSFER_PGM,current->data,current->length);
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current = current->next;
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}
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return total;
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} else {
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return 0;
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}
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}
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void HID_::AppendDescriptor(HIDDescriptorListNode *node)
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{
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if (modules_count == 0) {
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rootNode = node;
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} else {
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HIDDescriptorListNode *current = rootNode;
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while(current->next != NULL) {
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current = current->next;
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}
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current->next = node;
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}
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modules_count++;
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sizeof_hidReportDescriptor += (uint16_t)node->length;
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}
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void HID_::SendReport(uint8_t id, const void* data, int len)
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{
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USB_Send(endpoint(), &id, 1);
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USB_Send(endpoint() | TRANSFER_RELEASE,data,len);
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}
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bool HID_::setup(USBSetup& setup, uint8_t i)
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{
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if (interface() != i) {
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return false;
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} else {
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uint8_t r = setup.bRequest;
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uint8_t requestType = setup.bmRequestType;
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if (REQUEST_DEVICETOHOST_CLASS_INTERFACE == requestType)
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{
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if (HID_GET_REPORT == r)
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{
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//HID_GetReport();
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return true;
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}
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if (HID_GET_PROTOCOL == r)
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{
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//Send8(protocol); // TODO
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return true;
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}
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}
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if (REQUEST_HOSTTODEVICE_CLASS_INTERFACE == requestType)
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{
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if (HID_SET_PROTOCOL == r)
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{
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protocol = setup.wValueL;
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return true;
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}
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if (HID_SET_IDLE == r)
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{
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idle = setup.wValueL;
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return true;
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}
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}
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return false;
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}
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}
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// XXX: I've found no way to pass literal value directly in
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// the PUSBListNode constructor
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static uint8_t epTypeDef[] = { EP_TYPE_INTERRUPT_IN };
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HID_::HID_(void) : PUSBListNode(1, 1, epTypeDef),
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rootNode(NULL), sizeof_hidReportDescriptor(0),
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modules_count(0), protocol(1), idle(1)
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{
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// XXX: Shall this be done in PUSBListNode(...) constructor?
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PluggableUSB.plug(this);
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}
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int HID_::begin(void)
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{
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return 0;
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}
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#endif /* if defined(USBCON) */
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