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drtrigon/HIDJoy.cpp

Last active Oct 25, 2019
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//This Modifed version of VUSB was created in part by Rickey Ward, the USB HID descriptor
//was designed to be generic and useful, feel free to use this code to develop cool
//arduino based gamepads!
#include "HIDJoy.h"
#include <avr/io.h>
#include <avr/wdt.h>
#include <avr/interrupt.h> /* for sei() */
#include <util/delay.h> /* for _delay_ms() */
#include <avr/eeprom.h>
#include <avr/pgmspace.h> /* required by usbdrv.h */
#include "usbdrv.h"
#include <stdio.h>
#include <string.h>
#include <inttypes.h>
static uchar received = 0;
static uchar outBuffer[8];
static uchar inBuffer[HIDSERIAL_INBUFFER_SIZE];
static uchar reportId = 0;
static uchar bytesRemaining;
static uchar* pos;
static gamepad_report_t gameReport;
/*
PROGMEM const char usbHidReportDescriptor[36] = {
0x05, 0x01, // USAGE_PAGE (Generic Desktop)
0x09, 0x05, // USAGE (Game Pad)
0xa1, 0x01, // COLLECTION (Application)
0xa1, 0x00, // COLLECTION (Physical)
0x05, 0x01, // USAGE_PAGE (Generic Desktop)
0x09, 0x30, // USAGE (X)
0x09, 0x31, // USAGE (Y)
0x09, 0x32, // USAGE (Z) rx
0x09, 0x35, // USAGE (Rx) ry
0x35, 0x00, // PHYSICAL_MINIMUM (0)
0x46, 0xff, 0x00, // PHYSICAL_MAXIMUM (255)
0x15, 0x00, // LOGICAL_MINIMUM (-127)
0x26, 0xff, 0x00, // LOGICAL_MAXIMUM (127)
0x75, 0x08, // REPORT_SIZE (8)
0x95, 0x04, // REPORT_COUNT (4)
0x81, 0x02, // INPUT (Data,Var,Abs)
0xc0, // END_COLLECTION
0xc0 // END_COLLECTION
};
*/
PROGMEM const char usbHidReportDescriptor[USB_CFG_HID_REPORT_DESCRIPTOR_LENGTH] = {
0x05, 0x01, // USAGE_PAGE (Generic Desktop)
0x09, 0x05, // USAGE (Game Pad)
0xa1, 0x01, // COLLECTION (Application)
0xa1, 0x00, // COLLECTION (Physical)
0x05, 0x09, // USAGE_PAGE (Button)
0x19, 0x01, // USAGE_MINIMUM (Button 1)
0x29, 0x08, // USAGE_MAXIMUM (Button 8)
0x15, 0x00, // LOGICAL_MINIMUM (0)
0x25, 0x01, // LOGICAL_MAXIMUM (1)
0x95, 0x08, // REPORT_COUNT (8)
0x75, 0x01, // REPORT_SIZE (1)
0x81, 0x02, // INPUT (Data,Var,Abs)
0x05, 0x01, // USAGE_PAGE (Generic Desktop)
0x09, 0x30, // USAGE (X)
0x09, 0x31, // USAGE (Y)
0x09, 0x32, // USAGE (Z) rx
0x09, 0x33, // USAGE (Rx)
0x09, 0x34, // USAGE (Ry)
0x09, 0x35, // USAGE (Rz)
0x09, 0x36, // USAGE (Slider)
0x09, 0x36, // USAGE (Slider)
0x35, 0x00, // PHYSICAL_MINIMUM (0)
0x46, 0xff, 0x00, // PHYSICAL_MAXIMUM (255)
0x15, 0x00, // LOGICAL_MINIMUM (-127)
0x26, 0xff, 0x00, // LOGICAL_MAXIMUM (127)
0x75, 0x08, // REPORT_SIZE (8)
0x95, 0x08, // REPORT_COUNT (8)
0x81, 0x02, // INPUT (Data,Var,Abs)
0xc0, // END_COLLECTION
0xc0 // END_COLLECTION
};
// see also http://eleccelerator.com/tutorial-about-usb-hid-report-descriptors/
// see also https://forum.pjrc.com/threads/23681-Many-axis-joystick/page2
/* usbFunctionRead() is called when the host requests a chunk of data from
* the device. For more information see the documentation in usbdrv/usbdrv.h.
*/
uchar usbFunctionRead(uchar *data, uchar len)
{
return 0;
}
/* usbFunctionWrite() is called when the host sends a chunk of data to the
* device. For more information see the documentation in usbdrv/usbdrv.h.
*/
uchar usbFunctionWrite(uchar *data, uchar len)
{
if (reportId == 0) {
int i;
if(len > bytesRemaining)
len = bytesRemaining;
bytesRemaining -= len;
//int start = (pos==inBuffer)?1:0;
for(i=0;i<len;i++) {
if (data[i]!=0) {
*pos++ = data[i];
}
}
if (bytesRemaining == 0) {
received = 1;
*pos++ = 0;
return 1;
} else {
return 0;
}
} else {
return 1;
}
}
usbMsgLen_t usbFunctionSetup(uchar data[8])
{
usbRequest_t *rq = (usbRequest_t *)data;
reportId = rq->wValue.bytes[0];
if((rq->bmRequestType & USBRQ_TYPE_MASK) == USBRQ_TYPE_CLASS){ /* HID class request */
if(rq->bRequest == USBRQ_HID_GET_REPORT){
/* wValue: ReportType (highbyte), ReportID (lowbyte) */
/* since we have only one report type, we can ignore the report-ID */
return USB_NO_MSG; /* use usbFunctionRead() to obtain data */
}else if(rq->bRequest == USBRQ_HID_SET_REPORT){
/* since we have only one report type, we can ignore the report-ID */
pos = inBuffer;
bytesRemaining = rq->wLength.word;
if(bytesRemaining > sizeof(inBuffer))
bytesRemaining = sizeof(inBuffer);
return USB_NO_MSG; /* use usbFunctionWrite() to receive data from host */
}
}else{
/* ignore vendor type requests, we don't use any */
}
return 0;
}
HIDJoy::HIDJoy()
{
}
void HIDJoy::begin()
{
uchar i;
cli();
usbDeviceDisconnect();
i = 0;
while(--i){ /* fake USB disconnect for > 250 ms */
_delay_ms(1);
}
usbDeviceConnect();
usbInit();
sei();
received = 0;
}
void HIDJoy::poll()
{
usbPoll();
}
uchar HIDJoy::available()
{
return received;
}
uchar HIDJoy::read(uchar *buffer)
{
if(received == 0) return 0;
int i;
for(i=0;inBuffer[i]!=0&&i<HIDSERIAL_INBUFFER_SIZE;i++)
{
buffer[i] = inBuffer[i];
}
inBuffer[0] = 0;
buffer[i] = 0;
received = 0;
return i;
}
// write one character
size_t HIDJoy::writeGame(int8_t Lx, int8_t Ly, int8_t Rx, int8_t Ry, int8_t ch5, int8_t ch6, int8_t ch7, int8_t ch8)
{
while(!usbInterruptIsReady()) {
usbPoll();
}
gameReport.buttons = (Lx<0) | ((Ly<0) << 1) | ((Rx<0) << 2) | ((Ry<0) << 3) |
((ch5<0) << 4) | ((ch6<0) << 5) | ((ch7<0) << 6) | ((ch8<0) << 7);
gameReport.left_x = Lx;
gameReport.left_y = Ly;
gameReport.right_x = Rx;
gameReport.right_y = Ry;
gameReport.ch5 = ch5;
gameReport.ch6 = ch6;
gameReport.ch7 = ch7;
gameReport.ch8 = ch8;
// usbSetInterrupt((unsigned char *)&gameReport, sizeof(gamepad_report_t)); // write max 8 bytes
write((uint8_t *)&gameReport, sizeof(gamepad_report_t)); // write more than 8 bytes
return 1;
}
size_t HIDJoy::write(uint8_t data)
{
while(!usbInterruptIsReady()) {
usbPoll();
}
memset(outBuffer, 0, 8);
outBuffer[0] = data;
usbSetInterrupt(outBuffer, 8);
return 1;
}
// You should be able to simulate a 16 byte interrupt transfer with the following procedure:
// * Pass the first 8 bytes with usbSetInterrupt().
// * Wait until they are transferred with usbInterruptIsReady().
// * Pass the next 8 bytes with usbSetInterrupt().
// * Wait until the transaction is complete with usbInterruptIsReady().
// * Call usbSetInterrupt() with 0 bytes to indicate the end of transfer.
// If your payload is only 15 bytes, you save the last 0 byte transaction. The end of transfer is indicated by a transaction with less than 8 bytes.
// see also https://forums.obdev.at/viewtopic.php?p=330&sid=a371f0d9c43f177db4b8f5987f0e5fb2#p330
// write up to 8 characters
size_t HIDJoy::write8(const uint8_t *buffer, size_t size)
{
unsigned char i;
while(!usbInterruptIsReady()) {
usbPoll();
}
memset(outBuffer, 0, 8);
for(i=0;i<size && i<8; i++) {
outBuffer[i] = buffer[i];
}
// usbSetInterrupt(outBuffer, 8);
usbSetInterrupt(outBuffer, (size<8) ? size : 8);
return (i);
}
// write a string
size_t HIDJoy::write(const uint8_t *buffer, size_t size)
{
size_t count = 0;
unsigned char i;
for(i=0; i< (size/8) + 1; i++) {
count += write8(buffer+i*8, (size<(count+8)) ? (size-count) : 8);
}
// also need to call usbSetInterrupt() with 0 bytes to indicate the end of transfer
// if size is a multiple of 8 (8 excluded; 16, 24, 32, ...)
return count;
}
#ifndef HIDJoy_h
#define HIDJoy_h
#include "Arduino.h"
#include "Print.h"
#define HIDSERIAL_INBUFFER_SIZE 32
struct gamepad_report_t
{
uint8_t buttons;
int8_t left_x;
int8_t left_y;
int8_t right_x;
int8_t right_y;
int8_t ch5;
int8_t ch6;
int8_t ch7;
int8_t ch8;
}; // size: 9 bytes
class HIDJoy : public Print {
public:
HIDJoy();
size_t write(uint8_t); // write one character
size_t write(const uint8_t *buffer, size_t size); // write a string
size_t writeGame(int8_t Lx, int8_t Ly, int8_t Rx, int8_t Ry, int8_t ch5, int8_t ch6, int8_t ch7, int8_t ch8);
static void poll();
static unsigned char available();
static unsigned char read(unsigned char *buffer);
static void begin();
struct name_t {
/* data */
};
private:
size_t write8(const uint8_t *buffer, size_t size); // write up to 8 characters
};
#endif
/* Name: usbconfig.h
* Project: V-USB, virtual USB port for Atmel's(r) AVR(r) microcontrollers
* Author: Christian Starkjohann
* Creation Date: 2005-04-01
* Tabsize: 4
* Copyright: (c) 2005 by OBJECTIVE DEVELOPMENT Software GmbH
* License: GNU GPL v2 (see License.txt), GNU GPL v3 or proprietary (CommercialLicense.txt)
*/
#ifndef __usbconfig_h_included__
#define __usbconfig_h_included__
/*
General Description:
This file is an example configuration (with inline documentation) for the USB
driver. It configures V-USB for USB D+ connected to Port D bit 2 (which is
also hardware interrupt 0 on many devices) and USB D- to Port D bit 4. You may
wire the lines to any other port, as long as D+ is also wired to INT0 (or any
other hardware interrupt, as long as it is the highest level interrupt, see
section at the end of this file).
*/
/* ---------------------------- Hardware Config ---------------------------- */
#define USB_CFG_IOPORTNAME D
/* This is the port where the USB bus is connected. When you configure it to
* "B", the registers PORTB, PINB and DDRB will be used.
*/
#define USB_CFG_DMINUS_BIT 7
/* This is the bit number in USB_CFG_IOPORT where the USB D- line is connected.
* This may be any bit in the port.
*/
#define USB_CFG_DPLUS_BIT 2
/* This is the bit number in USB_CFG_IOPORT where the USB D+ line is connected.
* This may be any bit in the port. Please note that D+ must also be connected
* to interrupt pin INT0! [You can also use other interrupts, see section
* "Optional MCU Description" below, or you can connect D- to the interrupt, as
* it is required if you use the USB_COUNT_SOF feature. If you use D- for the
* interrupt, the USB interrupt will also be triggered at Start-Of-Frame
* markers every millisecond.]
*/
#define USB_CFG_CLOCK_KHZ (F_CPU/1000)
/* Clock rate of the AVR in kHz. Legal values are 12000, 12800, 15000, 16000,
* 16500, 18000 and 20000. The 12.8 MHz and 16.5 MHz versions of the code
* require no crystal, they tolerate +/- 1% deviation from the nominal
* frequency. All other rates require a precision of 2000 ppm and thus a
* crystal!
* Since F_CPU should be defined to your actual clock rate anyway, you should
* not need to modify this setting.
*/
#define USB_CFG_CHECK_CRC 0
/* Define this to 1 if you want that the driver checks integrity of incoming
* data packets (CRC checks). CRC checks cost quite a bit of code size and are
* currently only available for 18 MHz crystal clock. You must choose
* USB_CFG_CLOCK_KHZ = 18000 if you enable this option.
*/
/* ----------------------- Optional Hardware Config ------------------------ */
/* #define USB_CFG_PULLUP_IOPORTNAME D */
/* If you connect the 1.5k pullup resistor from D- to a port pin instead of
* V+, you can connect and disconnect the device from firmware by calling
* the macros usbDeviceConnect() and usbDeviceDisconnect() (see usbdrv.h).
* This constant defines the port on which the pullup resistor is connected.
*/
/* #define USB_CFG_PULLUP_BIT 4 */
/* This constant defines the bit number in USB_CFG_PULLUP_IOPORT (defined
* above) where the 1.5k pullup resistor is connected. See description
* above for details.
*/
/* --------------------------- Functional Range ---------------------------- */
#define USB_CFG_HAVE_INTRIN_ENDPOINT 1
/* Define this to 1 if you want to compile a version with two endpoints: The
* default control endpoint 0 and an interrupt-in endpoint (any other endpoint
* number).
*/
#define USB_CFG_HAVE_INTRIN_ENDPOINT3 0
/* Define this to 1 if you want to compile a version with three endpoints: The
* default control endpoint 0, an interrupt-in endpoint 3 (or the number
* configured below) and a catch-all default interrupt-in endpoint as above.
* You must also define USB_CFG_HAVE_INTRIN_ENDPOINT to 1 for this feature.
*/
#define USB_CFG_EP3_NUMBER 3
/* If the so-called endpoint 3 is used, it can now be configured to any other
* endpoint number (except 0) with this macro. Default if undefined is 3.
*/
/* #define USB_INITIAL_DATATOKEN USBPID_DATA1 */
/* The above macro defines the startup condition for data toggling on the
* interrupt/bulk endpoints 1 and 3. Defaults to USBPID_DATA1.
* Since the token is toggled BEFORE sending any data, the first packet is
* sent with the oposite value of this configuration!
*/
#define USB_CFG_IMPLEMENT_HALT 0
/* Define this to 1 if you also want to implement the ENDPOINT_HALT feature
* for endpoint 1 (interrupt endpoint). Although you may not need this feature,
* it is required by the standard. We have made it a config option because it
* bloats the code considerably.
*/
#define USB_CFG_SUPPRESS_INTR_CODE 0
/* Define this to 1 if you want to declare interrupt-in endpoints, but don't
* want to send any data over them. If this macro is defined to 1, functions
* usbSetInterrupt() and usbSetInterrupt3() are omitted. This is useful if
* you need the interrupt-in endpoints in order to comply to an interface
* (e.g. HID), but never want to send any data. This option saves a couple
* of bytes in flash memory and the transmit buffers in RAM.
*/
#define USB_CFG_INTR_POLL_INTERVAL 100
/* If you compile a version with endpoint 1 (interrupt-in), this is the poll
* interval. The value is in milliseconds and must not be less than 10 ms for
* low speed devices.
*/
#define USB_CFG_IS_SELF_POWERED 0
/* Define this to 1 if the device has its own power supply. Set it to 0 if the
* device is powered from the USB bus.
*/
#define USB_CFG_MAX_BUS_POWER 250
/* Set this variable to the maximum USB bus power consumption of your device.
* The value is in milliamperes. [It will be divided by two since USB
* communicates power requirements in units of 2 mA.]
*/
#define USB_CFG_IMPLEMENT_FN_WRITE 1
/* Set this to 1 if you want usbFunctionWrite() to be called for control-out
* transfers. Set it to 0 if you don't need it and want to save a couple of
* bytes.
*/
#define USB_CFG_IMPLEMENT_FN_READ 1
/* Set this to 1 if you need to send control replies which are generated
* "on the fly" when usbFunctionRead() is called. If you only want to send
* data from a static buffer, set it to 0 and return the data from
* usbFunctionSetup(). This saves a couple of bytes.
*/
#define USB_CFG_IMPLEMENT_FN_WRITEOUT 0
/* Define this to 1 if you want to use interrupt-out (or bulk out) endpoints.
* You must implement the function usbFunctionWriteOut() which receives all
* interrupt/bulk data sent to any endpoint other than 0. The endpoint number
* can be found in 'usbRxToken'.
*/
#define USB_CFG_HAVE_FLOWCONTROL 0
/* Define this to 1 if you want flowcontrol over USB data. See the definition
* of the macros usbDisableAllRequests() and usbEnableAllRequests() in
* usbdrv.h.
*/
#define USB_CFG_DRIVER_FLASH_PAGE 0
/* If the device has more than 64 kBytes of flash, define this to the 64 k page
* where the driver's constants (descriptors) are located. Or in other words:
* Define this to 1 for boot loaders on the ATMega128.
*/
#define USB_CFG_LONG_TRANSFERS 0
/* Define this to 1 if you want to send/receive blocks of more than 254 bytes
* in a single control-in or control-out transfer. Note that the capability
* for long transfers increases the driver size.
*/
/* #define USB_RX_USER_HOOK(data, len) if(usbRxToken == (uchar)USBPID_SETUP) blinkLED(); */
/* This macro is a hook if you want to do unconventional things. If it is
* defined, it's inserted at the beginning of received message processing.
* If you eat the received message and don't want default processing to
* proceed, do a return after doing your things. One possible application
* (besides debugging) is to flash a status LED on each packet.
*/
/* #define USB_RESET_HOOK(resetStarts) if(!resetStarts){hadUsbReset();} */
/* This macro is a hook if you need to know when an USB RESET occurs. It has
* one parameter which distinguishes between the start of RESET state and its
* end.
*/
/* #define USB_SET_ADDRESS_HOOK() hadAddressAssigned(); */
/* This macro (if defined) is executed when a USB SET_ADDRESS request was
* received.
*/
#define USB_COUNT_SOF 0
/* define this macro to 1 if you need the global variable "usbSofCount" which
* counts SOF packets. This feature requires that the hardware interrupt is
* connected to D- instead of D+.
*/
/* #ifdef __ASSEMBLER__
* macro myAssemblerMacro
* in YL, TCNT0
* sts timer0Snapshot, YL
* endm
* #endif
* #define USB_SOF_HOOK myAssemblerMacro
* This macro (if defined) is executed in the assembler module when a
* Start Of Frame condition is detected. It is recommended to define it to
* the name of an assembler macro which is defined here as well so that more
* than one assembler instruction can be used. The macro may use the register
* YL and modify SREG. If it lasts longer than a couple of cycles, USB messages
* immediately after an SOF pulse may be lost and must be retried by the host.
* What can you do with this hook? Since the SOF signal occurs exactly every
* 1 ms (unless the host is in sleep mode), you can use it to tune OSCCAL in
* designs running on the internal RC oscillator.
* Please note that Start Of Frame detection works only if D- is wired to the
* interrupt, not D+. THIS IS DIFFERENT THAN MOST EXAMPLES!
*/
#define USB_CFG_CHECK_DATA_TOGGLING 0
/* define this macro to 1 if you want to filter out duplicate data packets
* sent by the host. Duplicates occur only as a consequence of communication
* errors, when the host does not receive an ACK. Please note that you need to
* implement the filtering yourself in usbFunctionWriteOut() and
* usbFunctionWrite(). Use the global usbCurrentDataToken and a static variable
* for each control- and out-endpoint to check for duplicate packets.
*/
#define USB_CFG_HAVE_MEASURE_FRAME_LENGTH 0
/* define this macro to 1 if you want the function usbMeasureFrameLength()
* compiled in. This function can be used to calibrate the AVR's RC oscillator.
*/
#define USB_USE_FAST_CRC 0
/* The assembler module has two implementations for the CRC algorithm. One is
* faster, the other is smaller. This CRC routine is only used for transmitted
* messages where timing is not critical. The faster routine needs 31 cycles
* per byte while the smaller one needs 61 to 69 cycles. The faster routine
* may be worth the 32 bytes bigger code size if you transmit lots of data and
* run the AVR close to its limit.
*/
/* -------------------------- Device Description --------------------------- */
//#define USB_CFG_VENDOR_ID 0xc0, 0x16 /* = 0x16c0 = 5824 = voti.nl */
#define USB_CFG_VENDOR_ID 0xdc, 0x27
/* USB vendor ID for the device, low byte first. If you have registered your
* own Vendor ID, define it here. Otherwise you may use one of obdev's free
* shared VID/PID pairs. Be sure to read USB-IDs-for-free.txt for rules!
* *** IMPORTANT NOTE ***
* This template uses obdev's shared VID/PID pair for Vendor Class devices
* with libusb: 0x16c0/0x5dc. Use this VID/PID pair ONLY if you understand
* the implications!
*/
#define USB_CFG_DEVICE_ID 0xdf, 0x05 /* obdev's shared PID for HIDs */
/* This is the ID of the product, low byte first. It is interpreted in the
* scope of the vendor ID. If you have registered your own VID with usb.org
* or if you have licensed a PID from somebody else, define it here. Otherwise
* you may use one of obdev's free shared VID/PID pairs. See the file
* USB-IDs-for-free.txt for details!
* *** IMPORTANT NOTE ***
* This template uses obdev's shared VID/PID pair for Vendor Class devices
* with libusb: 0x16c0/0x5dc. Use this VID/PID pair ONLY if you understand
* the implications!
*/
#define USB_CFG_DEVICE_VERSION 0x00, 0x01
/* Version number of the device: Minor number first, then major number.
*/
#define USB_CFG_VENDOR_NAME 'D', 'i', 'a', 'm', 'o', 'n', 'd', 'D', 'r', 'a', 'k', 'e'
#define USB_CFG_VENDOR_NAME_LEN 12
/* These two values define the vendor name returned by the USB device. The name
* must be given as a list of characters under single quotes. The characters
* are interpreted as Unicode (UTF-16) entities.
* If you don't want a vendor name string, undefine these macros.
* ALWAYS define a vendor name containing your Internet domain name if you use
* obdev's free shared VID/PID pair. See the file USB-IDs-for-free.txt for
* details.
*/
#define USB_CFG_DEVICE_NAME 'T', 'w', 'i', 'n', ' ', 'U', 'S', 'B', ' ', 'J', 'o', 'y', 's', 't', 'i', 'c', 'k'
#define USB_CFG_DEVICE_NAME_LEN 17
//#define USB_CFG_DEVICE_NAME 'U', 'S', 'B', ' ', 'G', 'a', 'm', 'e', 'p', 'a', 'd'
//#define USB_CFG_DEVICE_NAME_LEN 11
/* Same as above for the device name. If you don't want a device name, undefine
* the macros. See the file USB-IDs-for-free.txt before you assign a name if
* you use a shared VID/PID.
*/
/*#define USB_CFG_SERIAL_NUMBER 'N', 'o', 'n', 'e' */
/*#define USB_CFG_SERIAL_NUMBER_LEN 0 */
/* Same as above for the serial number. If you don't want a serial number,
* undefine the macros.
* It may be useful to provide the serial number through other means than at
* compile time. See the section about descriptor properties below for how
* to fine tune control over USB descriptors such as the string descriptor
* for the serial number.
*/
#define USB_CFG_DEVICE_CLASS 0
#define USB_CFG_DEVICE_SUBCLASS 0
/* See USB specification if you want to conform to an existing device class.
* Class 0xff is "vendor specific".
*/
#define USB_CFG_INTERFACE_CLASS 3
#define USB_CFG_INTERFACE_SUBCLASS 0
#define USB_CFG_INTERFACE_PROTOCOL 0
/* See USB specification if you want to conform to an existing device class or
* protocol. The following classes must be set at interface level:
* HID class is 3, no subclass and protocol required (but may be useful!)
* CDC class is 2, use subclass 2 and protocol 1 for ACM
*/
//was 29 VVVV
//#define USB_CFG_HID_REPORT_DESCRIPTOR_LENGTH 36
#define USB_CFG_HID_REPORT_DESCRIPTOR_LENGTH 60
/* Define this to the length of the HID report descriptor, if you implement
* an HID device. Otherwise don't define it or define it to 0.
* If you use this define, you must add a PROGMEM character array named
* "usbHidReportDescriptor" to your code which contains the report descriptor.
* Don't forget to keep the array and this define in sync!
*/
/* #define USB_PUBLIC static */
/* Use the define above if you #include usbdrv.c instead of linking against it.
* This technique saves a couple of bytes in flash memory.
*/
/* ------------------- Fine Control over USB Descriptors ------------------- */
/* If you don't want to use the driver's default USB descriptors, you can
* provide our own. These can be provided as (1) fixed length static data in
* flash memory, (2) fixed length static data in RAM or (3) dynamically at
* runtime in the function usbFunctionDescriptor(). See usbdrv.h for more
* information about this function.
* Descriptor handling is configured through the descriptor's properties. If
* no properties are defined or if they are 0, the default descriptor is used.
* Possible properties are:
* + USB_PROP_IS_DYNAMIC: The data for the descriptor should be fetched
* at runtime via usbFunctionDescriptor(). If the usbMsgPtr mechanism is
* used, the data is in FLASH by default. Add property USB_PROP_IS_RAM if
* you want RAM pointers.
* + USB_PROP_IS_RAM: The data returned by usbFunctionDescriptor() or found
* in static memory is in RAM, not in flash memory.
* + USB_PROP_LENGTH(len): If the data is in static memory (RAM or flash),
* the driver must know the descriptor's length. The descriptor itself is
* found at the address of a well known identifier (see below).
* List of static descriptor names (must be declared PROGMEM if in flash):
* char usbDescriptorDevice[];
* char usbDescriptorConfiguration[];
* char usbDescriptorHidReport[];
* char usbDescriptorString0[];
* int usbDescriptorStringVendor[];
* int usbDescriptorStringDevice[];
* int usbDescriptorStringSerialNumber[];
* Other descriptors can't be provided statically, they must be provided
* dynamically at runtime.
*
* Descriptor properties are or-ed or added together, e.g.:
* #define USB_CFG_DESCR_PROPS_DEVICE (USB_PROP_IS_RAM | USB_PROP_LENGTH(18))
*
* The following descriptors are defined:
* USB_CFG_DESCR_PROPS_DEVICE
* USB_CFG_DESCR_PROPS_CONFIGURATION
* USB_CFG_DESCR_PROPS_STRINGS
* USB_CFG_DESCR_PROPS_STRING_0
* USB_CFG_DESCR_PROPS_STRING_VENDOR
* USB_CFG_DESCR_PROPS_STRING_PRODUCT
* USB_CFG_DESCR_PROPS_STRING_SERIAL_NUMBER
* USB_CFG_DESCR_PROPS_HID
* USB_CFG_DESCR_PROPS_HID_REPORT
* USB_CFG_DESCR_PROPS_UNKNOWN (for all descriptors not handled by the driver)
*
* Note about string descriptors: String descriptors are not just strings, they
* are Unicode strings prefixed with a 2 byte header. Example:
* int serialNumberDescriptor[] = {
* USB_STRING_DESCRIPTOR_HEADER(6),
* 'S', 'e', 'r', 'i', 'a', 'l'
* };
*/
#define USB_CFG_DESCR_PROPS_DEVICE 0
#define USB_CFG_DESCR_PROPS_CONFIGURATION 0
#define USB_CFG_DESCR_PROPS_STRINGS 0
#define USB_CFG_DESCR_PROPS_STRING_0 0
#define USB_CFG_DESCR_PROPS_STRING_VENDOR 0
#define USB_CFG_DESCR_PROPS_STRING_PRODUCT 0
#define USB_CFG_DESCR_PROPS_STRING_SERIAL_NUMBER 0
#define USB_CFG_DESCR_PROPS_HID 0
#define USB_CFG_DESCR_PROPS_HID_REPORT 0
#define USB_CFG_DESCR_PROPS_UNKNOWN 0
#define usbMsgPtr_t unsigned short
/* If usbMsgPtr_t is not defined, it defaults to 'uchar *'. We define it to
* a scalar type here because gcc generates slightly shorter code for scalar
* arithmetics than for pointer arithmetics. Remove this define for backward
* type compatibility or define it to an 8 bit type if you use data in RAM only
* and all RAM is below 256 bytes (tiny memory model in IAR CC).
*/
/* ----------------------- Optional MCU Description ------------------------ */
/* The following configurations have working defaults in usbdrv.h. You
* usually don't need to set them explicitly. Only if you want to run
* the driver on a device which is not yet supported or with a compiler
* which is not fully supported (such as IAR C) or if you use a differnt
* interrupt than INT0, you may have to define some of these.
*/
/* #define USB_INTR_CFG MCUCR */
/* #define USB_INTR_CFG_SET ((1 << ISC00) | (1 << ISC01)) */
/* #define USB_INTR_CFG_CLR 0 */
/* #define USB_INTR_ENABLE GIMSK */
/* #define USB_INTR_ENABLE_BIT INT0 */
/* #define USB_INTR_PENDING GIFR */
/* #define USB_INTR_PENDING_BIT INTF0 */
/* #define USB_INTR_VECTOR INT0_vect */
#endif /* __usbconfig_h_included__ */
// *******************************
// USBtx by Rickey Ward
//
// Gamepad with Left and Right
// analog axis - converterd from
// spektrum flight transmitter
//
// Ex version with calibration mode
//
// ******************************
//include VUSB Library
#include <HIDJoy.h>
//include RcTrainer library
//important! this include must come AFTER HIDJoy.h
#include <RcTrainer.h>
//Create instance of HIDJoystick
HIDJoy joy;
//Create instance of RcTrainer object
RcTrainer tx(1);
//-----------------Vars--------------------------
//vars to hold used configuration, preintialized to Spektrum DX6
//axis lows (top left)
int lxul = 1900;
int lyul = 1900;
int rxul = 1105;
int ryul = 1900;
//adis highs (bottom right)
int lxuh = 1105;
int lyuh = 1105;
int rxuh = 1900;
int ryuh = 1105;
void setup() {
//start USB communication
joy.begin();
}
void loop()
{
//do usb stuff, important to be called often.
joy.poll();
//grab data, send it to usb
uint8_t lx = tx.getChannel(3, lxul, lxuh, 0, 255);
uint8_t ly = tx.getChannel(0, lyul, lyuh, 0, 255);
uint8_t rx = tx.getChannel(2, rxul, rxuh, 0, 255);
uint8_t ry = tx.getChannel(1, ryul, ryuh, 0, 255);
uint8_t ch5 = tx.getChannel(4, 1105, 1900, 0, 255);
uint8_t ch6 = tx.getChannel(5, 1105, 1900, 0, 255);
uint8_t ch7 = tx.getChannel(6, 1105, 1900, 0, 255);
uint8_t ch8 = tx.getChannel(7, 1105, 1900, 0, 255);
joy.writeGame(lx,ly,rx,ry,ch5,ch6,ch7,ch8);
}//end loop
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