520 lines
13 KiB
C++
520 lines
13 KiB
C++
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/* 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 "Platform.h"
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#include "USBAPI.h"
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#include "USBDesc.h"
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#if defined(USBCON)
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#ifdef HID_ENABLED
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//#define RAWHID_ENABLED
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// Singletons for mouse and keyboard
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Mouse_ Mouse;
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Keyboard_ Keyboard;
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//================================================================================
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//================================================================================
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// HID report descriptor
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#define LSB(_x) ((_x) & 0xFF)
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#define MSB(_x) ((_x) >> 8)
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#define RAWHID_USAGE_PAGE 0xFFC0
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#define RAWHID_USAGE 0x0C00
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#define RAWHID_TX_SIZE 64
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#define RAWHID_RX_SIZE 64
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extern const u8 _hidReportDescriptor[] PROGMEM;
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const u8 _hidReportDescriptor[] = {
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// Mouse
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0x05, 0x01, // USAGE_PAGE (Generic Desktop) // 54
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0x09, 0x02, // USAGE (Mouse)
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0xa1, 0x01, // COLLECTION (Application)
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0x09, 0x01, // USAGE (Pointer)
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0xa1, 0x00, // COLLECTION (Physical)
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0x85, 0x01, // REPORT_ID (1)
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0x05, 0x09, // USAGE_PAGE (Button)
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0x19, 0x01, // USAGE_MINIMUM (Button 1)
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0x29, 0x03, // USAGE_MAXIMUM (Button 3)
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0x15, 0x00, // LOGICAL_MINIMUM (0)
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0x25, 0x01, // LOGICAL_MAXIMUM (1)
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0x95, 0x03, // REPORT_COUNT (3)
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0x75, 0x01, // REPORT_SIZE (1)
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0x81, 0x02, // INPUT (Data,Var,Abs)
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0x95, 0x01, // REPORT_COUNT (1)
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0x75, 0x05, // REPORT_SIZE (5)
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0x81, 0x03, // INPUT (Cnst,Var,Abs)
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0x05, 0x01, // USAGE_PAGE (Generic Desktop)
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0x09, 0x30, // USAGE (X)
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0x09, 0x31, // USAGE (Y)
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0x09, 0x38, // USAGE (Wheel)
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0x15, 0x81, // LOGICAL_MINIMUM (-127)
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0x25, 0x7f, // LOGICAL_MAXIMUM (127)
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0x75, 0x08, // REPORT_SIZE (8)
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0x95, 0x03, // REPORT_COUNT (3)
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0x81, 0x06, // INPUT (Data,Var,Rel)
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0xc0, // END_COLLECTION
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0xc0, // END_COLLECTION
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// Keyboard
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0x05, 0x01, // USAGE_PAGE (Generic Desktop) // 47
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0x09, 0x06, // USAGE (Keyboard)
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0xa1, 0x01, // COLLECTION (Application)
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0x85, 0x02, // REPORT_ID (2)
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0x05, 0x07, // USAGE_PAGE (Keyboard)
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0x19, 0xe0, // USAGE_MINIMUM (Keyboard LeftControl)
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0x29, 0xe7, // USAGE_MAXIMUM (Keyboard Right GUI)
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0x15, 0x00, // LOGICAL_MINIMUM (0)
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0x25, 0x01, // LOGICAL_MAXIMUM (1)
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0x75, 0x01, // REPORT_SIZE (1)
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0x95, 0x08, // REPORT_COUNT (8)
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0x81, 0x02, // INPUT (Data,Var,Abs)
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0x95, 0x01, // REPORT_COUNT (1)
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0x75, 0x08, // REPORT_SIZE (8)
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0x81, 0x03, // INPUT (Cnst,Var,Abs)
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0x95, 0x06, // REPORT_COUNT (6)
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0x75, 0x08, // REPORT_SIZE (8)
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0x15, 0x00, // LOGICAL_MINIMUM (0)
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0x25, 0x65, // LOGICAL_MAXIMUM (101)
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0x05, 0x07, // USAGE_PAGE (Keyboard)
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0x19, 0x00, // USAGE_MINIMUM (Reserved (no event indicated))
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0x29, 0x65, // USAGE_MAXIMUM (Keyboard Application)
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0x81, 0x00, // INPUT (Data,Ary,Abs)
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0xc0, // END_COLLECTION
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#if RAWHID_ENABLED
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// RAW HID
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0x06, LSB(RAWHID_USAGE_PAGE), MSB(RAWHID_USAGE_PAGE), // 30
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0x0A, LSB(RAWHID_USAGE), MSB(RAWHID_USAGE),
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0xA1, 0x01, // Collection 0x01
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0x85, 0x03, // REPORT_ID (3)
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0x75, 0x08, // report size = 8 bits
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0x15, 0x00, // logical minimum = 0
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0x26, 0xFF, 0x00, // logical maximum = 255
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0x95, 64, // report count TX
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0x09, 0x01, // usage
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0x81, 0x02, // Input (array)
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0x95, 64, // report count RX
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0x09, 0x02, // usage
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0x91, 0x02, // Output (array)
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0xC0 // end collection
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#endif
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};
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extern const HIDDescriptor _hidInterface PROGMEM;
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const HIDDescriptor _hidInterface =
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{
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D_INTERFACE(HID_INTERFACE,1,3,0,0),
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D_HIDREPORT(sizeof(_hidReportDescriptor)),
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D_ENDPOINT(USB_ENDPOINT_IN (HID_ENDPOINT_INT),USB_ENDPOINT_TYPE_INTERRUPT,0x40,0x01)
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};
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//================================================================================
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//================================================================================
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// Driver
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u8 _hid_protocol = 1;
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u8 _hid_idle = 1;
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#define WEAK __attribute__ ((weak))
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int WEAK HID_GetInterface(u8* interfaceNum)
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{
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interfaceNum[0] += 1; // uses 1
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return USB_SendControl(TRANSFER_PGM,&_hidInterface,sizeof(_hidInterface));
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}
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int WEAK HID_GetDescriptor(int i)
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{
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return USB_SendControl(TRANSFER_PGM,_hidReportDescriptor,sizeof(_hidReportDescriptor));
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}
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void WEAK HID_SendReport(u8 id, const void* data, int len)
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{
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USB_Send(HID_TX, &id, 1);
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USB_Send(HID_TX | TRANSFER_RELEASE,data,len);
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}
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bool WEAK HID_Setup(Setup& setup)
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{
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u8 r = setup.bRequest;
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u8 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(_hid_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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_hid_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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_hid_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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//================================================================================
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// Mouse
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Mouse_::Mouse_(void) : _buttons(0)
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{
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}
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void Mouse_::begin(void)
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{
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}
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void Mouse_::end(void)
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{
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}
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void Mouse_::click(uint8_t b)
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{
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_buttons = b;
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move(0,0,0);
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_buttons = 0;
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move(0,0,0);
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}
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void Mouse_::move(signed char x, signed char y, signed char wheel)
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{
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u8 m[4];
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m[0] = _buttons;
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m[1] = x;
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m[2] = y;
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m[3] = wheel;
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HID_SendReport(1,m,4);
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}
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void Mouse_::buttons(uint8_t b)
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{
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if (b != _buttons)
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{
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_buttons = b;
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move(0,0,0);
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}
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}
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void Mouse_::press(uint8_t b)
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{
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buttons(_buttons | b);
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}
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void Mouse_::release(uint8_t b)
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{
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buttons(_buttons & ~b);
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}
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bool Mouse_::isPressed(uint8_t b)
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{
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if ((b & _buttons) > 0)
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return true;
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return false;
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}
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//================================================================================
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//================================================================================
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// Keyboard
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Keyboard_::Keyboard_(void)
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{
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}
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void Keyboard_::begin(void)
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{
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}
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void Keyboard_::end(void)
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{
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}
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void Keyboard_::sendReport(KeyReport* keys)
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{
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HID_SendReport(2,keys,sizeof(KeyReport));
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}
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extern
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const uint8_t _asciimap[128] PROGMEM;
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#define SHIFT 0x80
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const uint8_t _asciimap[128] =
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{
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0x00, // NUL
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0x00, // SOH
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0x00, // STX
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0x00, // ETX
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0x00, // EOT
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0x00, // ENQ
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0x00, // ACK
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0x00, // BEL
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0x2a, // BS Backspace
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0x2b, // TAB Tab
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0x28, // LF Enter
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0x00, // VT
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0x00, // FF
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0x00, // CR
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0x00, // SO
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0x00, // SI
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0x00, // DEL
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0x00, // DC1
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0x00, // DC2
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0x00, // DC3
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0x00, // DC4
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0x00, // NAK
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0x00, // SYN
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0x00, // ETB
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0x00, // CAN
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0x00, // EM
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0x00, // SUB
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0x00, // ESC
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0x00, // FS
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0x00, // GS
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0x00, // RS
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0x00, // US
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0x2c, // ' '
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0x1e|SHIFT, // !
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0x34|SHIFT, // "
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0x20|SHIFT, // #
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0x21|SHIFT, // $
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0x22|SHIFT, // %
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0x24|SHIFT, // &
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0x34, // '
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0x26|SHIFT, // (
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0x27|SHIFT, // )
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0x25|SHIFT, // *
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0x2e|SHIFT, // +
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0x36, // ,
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0x2d, // -
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0x37, // .
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0x38, // /
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0x27, // 0
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0x1e, // 1
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0x1f, // 2
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0x20, // 3
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0x21, // 4
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0x22, // 5
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0x23, // 6
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0x24, // 7
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0x25, // 8
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0x26, // 9
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0x33|SHIFT, // :
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0x33, // ;
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0x36|SHIFT, // <
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0x2e, // =
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0x37|SHIFT, // >
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0x38|SHIFT, // ?
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0x1f|SHIFT, // @
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0x04|SHIFT, // A
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0x05|SHIFT, // B
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0x06|SHIFT, // C
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0x07|SHIFT, // D
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0x08|SHIFT, // E
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0x09|SHIFT, // F
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0x0a|SHIFT, // G
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0x0b|SHIFT, // H
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0x0c|SHIFT, // I
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0x0d|SHIFT, // J
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0x0e|SHIFT, // K
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0x0f|SHIFT, // L
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0x10|SHIFT, // M
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0x11|SHIFT, // N
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0x12|SHIFT, // O
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0x13|SHIFT, // P
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0x14|SHIFT, // Q
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0x15|SHIFT, // R
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0x16|SHIFT, // S
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0x17|SHIFT, // T
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0x18|SHIFT, // U
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0x19|SHIFT, // V
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0x1a|SHIFT, // W
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0x1b|SHIFT, // X
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0x1c|SHIFT, // Y
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0x1d|SHIFT, // Z
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0x2f, // [
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0x31, // bslash
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0x30, // ]
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0x23|SHIFT, // ^
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0x2d|SHIFT, // _
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0x35, // `
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0x04, // a
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0x05, // b
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0x06, // c
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0x07, // d
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0x08, // e
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0x09, // f
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0x0a, // g
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0x0b, // h
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0x0c, // i
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0x0d, // j
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0x0e, // k
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0x0f, // l
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0x10, // m
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0x11, // n
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0x12, // o
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0x13, // p
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0x14, // q
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0x15, // r
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0x16, // s
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0x17, // t
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0x18, // u
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0x19, // v
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0x1a, // w
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0x1b, // x
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0x1c, // y
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0x1d, // z
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0x2f|SHIFT, //
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0x31|SHIFT, // |
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0x30|SHIFT, // }
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0x35|SHIFT, // ~
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0 // DEL
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};
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uint8_t USBPutChar(uint8_t c);
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// press() adds the specified key (printing, non-printing, or modifier)
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// to the persistent key report and sends the report. Because of the way
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// USB HID works, the host acts like the key remains pressed until we
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// call release(), releaseAll(), or otherwise clear the report and resend.
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size_t Keyboard_::press(uint8_t k)
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{
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uint8_t i;
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if (k >= 136) { // it's a non-printing key (not a modifier)
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k = k - 136;
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} else if (k >= 128) { // it's a modifier key
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_keyReport.modifiers |= (1<<(k-128));
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k = 0;
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} else { // it's a printing key
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k = pgm_read_byte(_asciimap + k);
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if (!k) {
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setWriteError();
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return 0;
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}
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if (k & 0x80) { // it's a capital letter or other character reached with shift
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_keyReport.modifiers |= 0x02; // the left shift modifier
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k &= 0x7F;
|
||
|
}
|
||
|
}
|
||
|
|
||
|
// Add k to the key report only if it's not already present
|
||
|
// and if there is an empty slot.
|
||
|
if (_keyReport.keys[0] != k && _keyReport.keys[1] != k &&
|
||
|
_keyReport.keys[2] != k && _keyReport.keys[3] != k &&
|
||
|
_keyReport.keys[4] != k && _keyReport.keys[5] != k) {
|
||
|
|
||
|
for (i=0; i<6; i++) {
|
||
|
if (_keyReport.keys[i] == 0x00) {
|
||
|
_keyReport.keys[i] = k;
|
||
|
break;
|
||
|
}
|
||
|
}
|
||
|
if (i == 6) {
|
||
|
setWriteError();
|
||
|
return 0;
|
||
|
}
|
||
|
}
|
||
|
sendReport(&_keyReport);
|
||
|
return 1;
|
||
|
}
|
||
|
|
||
|
// release() takes the specified key out of the persistent key report and
|
||
|
// sends the report. This tells the OS the key is no longer pressed and that
|
||
|
// it shouldn't be repeated any more.
|
||
|
size_t Keyboard_::release(uint8_t k)
|
||
|
{
|
||
|
uint8_t i;
|
||
|
if (k >= 136) { // it's a non-printing key (not a modifier)
|
||
|
k = k - 136;
|
||
|
} else if (k >= 128) { // it's a modifier key
|
||
|
_keyReport.modifiers &= ~(1<<(k-128));
|
||
|
k = 0;
|
||
|
} else { // it's a printing key
|
||
|
k = pgm_read_byte(_asciimap + k);
|
||
|
if (!k) {
|
||
|
return 0;
|
||
|
}
|
||
|
if (k & 0x80) { // it's a capital letter or other character reached with shift
|
||
|
_keyReport.modifiers &= ~(0x02); // the left shift modifier
|
||
|
k &= 0x7F;
|
||
|
}
|
||
|
}
|
||
|
|
||
|
// Test the key report to see if k is present. Clear it if it exists.
|
||
|
// Check all positions in case the key is present more than once (which it shouldn't be)
|
||
|
for (i=0; i<6; i++) {
|
||
|
if (0 != k && _keyReport.keys[i] == k) {
|
||
|
_keyReport.keys[i] = 0x00;
|
||
|
}
|
||
|
}
|
||
|
|
||
|
sendReport(&_keyReport);
|
||
|
return 1;
|
||
|
}
|
||
|
|
||
|
void Keyboard_::releaseAll(void)
|
||
|
{
|
||
|
_keyReport.keys[0] = 0;
|
||
|
_keyReport.keys[1] = 0;
|
||
|
_keyReport.keys[2] = 0;
|
||
|
_keyReport.keys[3] = 0;
|
||
|
_keyReport.keys[4] = 0;
|
||
|
_keyReport.keys[5] = 0;
|
||
|
_keyReport.modifiers = 0;
|
||
|
sendReport(&_keyReport);
|
||
|
}
|
||
|
|
||
|
size_t Keyboard_::write(uint8_t c)
|
||
|
{
|
||
|
uint8_t p = press(c); // Keydown
|
||
|
uint8_t r = release(c); // Keyup
|
||
|
return (p); // just return the result of press() since release() almost always returns 1
|
||
|
}
|
||
|
|
||
|
#endif
|
||
|
|
||
|
#endif /* if defined(USBCON) */
|