245 lines
8.2 KiB
C
245 lines
8.2 KiB
C
/*****************************************************************************
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USB-Template: User defined USB device
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V1.1.0
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(c) 2010-2011 Reusch Elektronik, Dipl.-Ing. (FH) Rainer Reusch
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Homepage: http://products.reworld.eu/index.htm
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Supported devices:
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- AT90USB82, AT90USB162
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- ATMEGA8U2, ATMEGA16U2, ATMEGA32U2
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- ATMEGA8U4, ATMEGA16U4, ATMEGA32U4
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- AT90USB646, AT90USB647, AT90USB1286, AT90USB1287
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Supported modules:
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- U2DIL-AT90USB162
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- U2DIL-ATMEGA32U2
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- U4DIL-ATMEGA32U4
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- U6DIL-AT90USB1286
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USB Configuration
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Created: 2010-01-07
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Changed: 2011-03-12
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*****************************************************************************/
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// in this file you will make changes for your purposes
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#ifndef usbconfig_h__
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#define usbconfig_h__
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#if defined (__AVR_AT90USB82__) || (__AVR_AT90USB162__) || (__AVR_ATmega8U2__) || (__AVR_ATmega32U2__)
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#define MEGA2 // AT90USB82/162, ATMEGAxxU2
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#endif
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#if defined (__AVR_ATmega16U4__) || (__AVR_ATmega32U4__)
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#define MEGA4 // ATMEGAxxU4
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#define MEGA4_6
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#endif
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#if defined (__AVR_AT90USB646__) || (__AVR_AT90USB647__) || (__AVR_AT90USB1286__) || (__AVR_AT90USB1287__)
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#define MEGA6 // AT90USB646, -647, -1286, -1287
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#define MEGA4_6
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#endif
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#include <stdint.h>
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#include <stdbool.h>
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#include "config.h"
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#if (F_CPU==8000000)
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#define FREQ_OK
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#endif
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#if (F_CPU==16000000)
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#define FREQ_OK
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#endif
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#ifndef FREQ_OK
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#error "Invalid clock frequency (only 8 or 16MHz)!"
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#endif
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//-----------------------------------------------------------------------------
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// General USB commitments
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//-----------------------------------------------------------------------------
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// Vendor Name
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// will be a part of the descriptor and can be requested by the host
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#define STR_MANUFACTURER L"BlubbFish"
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// Product Name
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// will be a part of the descriptor and can be requested by the host
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#define STR_PRODUCT L"Hacker-Jeopardy"
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// USB Serial Number (optional)
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// will be a part of the descriptor and can be requested by the host
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#define USESN 1 // Options: 0= no S/N; 1= S/N inside the flash memory; 2= S/N inside RAM
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#if (USESN==1)
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#define STR_SERIAL_NUMBER L"000001" // your serial number, stored in flash memory
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#endif
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// Vendor ID
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// set your vendor ID here
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#define VENDOR_ID 0xDEAD // !!! THIS ID IS NOT FOR OFFICIAL USE, FOR YOUR PERSONAL TESTING PURPOSES ONLY !!!
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// Product ID
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// set your product ID here
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#define PRODUCT_ID 0xBEEE // !!! THIS ID IS NOT FOR OFFICIAL USE, FOR YOUR PERSONAL TESTING PURPOSES ONLY !!!
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// USB device class
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// possible settings:
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#define USBDEVICECLASS_USER 0xFF // user defined class
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// set the class for your purposes
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#define USBDEVICECLASS USBDEVICECLASS_USER
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// power supply
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#define SELFPOWERED 0x40
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#define BUSPOWERED 0x80
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#define POWERING SELFPOWERED | BUSPOWERED // Alternatives: SELFPOWERED or SELFPOWERED | BUSPOWERED
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// current consumption
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// in mA (milliamperes), uses only even values between 2 and 500
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#define MAXPOWER 500
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#ifdef MEGA2
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// The controllers AT90USB82/162 and ATMEGAxxU2 are not able, to detect a
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// plugged USB connector (presence of VBUS voltage). As alternative an input
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// port, which is connected with the 5V line of the USB connector, can be
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// used. A pull down resistor at the input port is recommended.
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// Uncomment the following line, if a port pin is used for this purpose.
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//#define VBUSDETECT
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#define VBUSDIR DDRC // Data Direction Register of the used port
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#define VBUSPORT PINC // used port
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#define VBUSPIN PC4 // used pin (PC4 as example)
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#endif
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//-----------------------------------------------------------------------------
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// Data Set for a USB Control Request
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//-----------------------------------------------------------------------------
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// Nothing to change here!
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struct usb_control_request {
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uint8_t bmRequestType;
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uint8_t bRequest;
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uint16_t wValue;
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uint16_t wIndex;
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uint16_t wLength;
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};
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//-----------------------------------------------------------------------------
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// Endpoints
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//-----------------------------------------------------------------------------
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// maximum number of endpoints (don't change!)
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#ifdef MEGA4_6
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#define MAX_ENDPOINT 6
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#else
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#define MAX_ENDPOINT 4
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#endif
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// Constants for endpoint configuration (don't change!)
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#define EP_TYPE_DISABLED 0xFF // endpoint not used
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#define EP_TYPE_CONTROL 0x00
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#define EP_TYPE_BULK_IN 0x81
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#define EP_TYPE_BULK_OUT 0x80
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#define EP_TYPE_INTERRUPT_IN 0xC1
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#define EP_TYPE_INTERRUPT_OUT 0xC0
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#define EP_TYPE_ISOCHRONOUS_IN 0x41
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#define EP_TYPE_ISOCHRONOUS_OUT 0x40
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#define EP_SINGLE_BUFFER 0x02
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#define EP_DOUBLE_BUFFER 0x06
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// Endpoint 0
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// (for Control Transfers, must be defined always)
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#define ENDPOINT0_SIZE 16 // control endpoint
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// uncomment the following line to handle user defined control request
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// of endpoint 0 in the main program
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#define USERDEFCONTROLS // we will use self defined control transfers in this example
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#ifdef USERDEFCONTROLS
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// function prototype to handle user defined control requests.
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// Function has to return "true", if request is handled.
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// If result is "false", a "stall" will be returned to host.
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bool usb_controlrequest(struct usb_control_request *ucr);
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#endif
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typedef struct {
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uint8_t ep_type; // transfer
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uint8_t ep_size; // buffer size
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uint8_t ep_buffer; // buffer configuration
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} ep_config;
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// configuration of the endpoints
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// EP_TYPE constant, buffer size (8, 16, 32 or 64 byte), single or double buffer
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// Hint: Use only two endpoints, if buffer size is 64 byte!
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// Additional hints, if more than one USB interfaces are defined:
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// - after configuration change (only configuration 1 is possible),
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// interface 0 will be selected
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// - to chose another interface, the control request command SET_INTERFACE
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// with the request type 0x20 has to be executed
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#define NUMINTERFACES 2 // number of supported interfaces (1...3) (Endpoint configurations)
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#if (NUMINTERFACES>1)
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static const ep_config EP_CONFIG[NUMINTERFACES][MAX_ENDPOINT] = {{
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#else
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static const ep_config EP_CONFIG[MAX_ENDPOINT] = {
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#endif
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// modify the following lines for your purposes
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{EP_TYPE_BULK_OUT, 32, EP_SINGLE_BUFFER}, // one OUT and one IN endpoint with bulk transfer in this example
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{EP_TYPE_BULK_IN, 32, EP_SINGLE_BUFFER},
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{EP_TYPE_DISABLED, 32, EP_SINGLE_BUFFER},
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{EP_TYPE_DISABLED, 32, EP_SINGLE_BUFFER}
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#ifdef MEGA4_6 // the following endpoints are only available on ATMEGAxxU4 and AT90USB64x/128x controllers
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,
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{EP_TYPE_DISABLED, 32, EP_SINGLE_BUFFER},
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{EP_TYPE_DISABLED, 32, EP_SINGLE_BUFFER}
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#endif
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#if (NUMINTERFACES>1)
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},{
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// modify the following lines for your purposes
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{EP_TYPE_INTERRUPT_IN, 32, EP_SINGLE_BUFFER},
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{EP_TYPE_DISABLED, 32, EP_SINGLE_BUFFER},
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{EP_TYPE_DISABLED, 32, EP_SINGLE_BUFFER},
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{EP_TYPE_DISABLED, 32, EP_SINGLE_BUFFER}
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#ifdef MEGA4_6 // the following endpoints are only available on ATMEGAxxU4 and AT90USB64x/128x controllers
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,
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{EP_TYPE_DISABLED, 32, EP_SINGLE_BUFFER},
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{EP_TYPE_DISABLED, 32, EP_SINGLE_BUFFER}
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#endif
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}
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// more interfaces...
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#if (NUMINTERFACES==3)
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,{
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// modify the following lines for your purposes
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{EP_TYPE_DISABLED, 32, EP_SINGLE_BUFFER},
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{EP_TYPE_DISABLED, 32, EP_SINGLE_BUFFER},
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{EP_TYPE_DISABLED, 32, EP_SINGLE_BUFFER},
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{EP_TYPE_DISABLED, 32, EP_SINGLE_BUFFER}
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#ifdef MEGA4_6 // the following endpoints are only available on ATMEGAxxU4 and AT90USB64x/128x controllers
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,
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{EP_TYPE_DISABLED, 32, EP_SINGLE_BUFFER},
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{EP_TYPE_DISABLED, 32, EP_SINGLE_BUFFER}
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#endif
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}
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#endif
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#endif
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};
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//-----------------------------------------------------------------------------
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// Endpoint Interrupt
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//-----------------------------------------------------------------------------
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// Function prototype to handle endpoint interrupts for incoming data
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// The routine will be a part of the main program
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void usb_ep(uint8_t endpoint, uint16_t datasize);
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//-----------------------------------------------------------------------------
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// Functional Purposes
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//-----------------------------------------------------------------------------
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// "Endpoint Halt" option
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// Comment the following to save code memory. But USB conformity is lost.
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#define SUPPORT_ENDPOINT_HALT
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#endif
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