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-/* Name: usbdrv.h
- * Project: V-USB, virtual USB port for Atmel's(r) AVR(r) microcontrollers
- * Author: Christian Starkjohann
- * Creation Date: 2004-12-29
- * Tabsize: 4
- * Copyright: (c) 2005 by OBJECTIVE DEVELOPMENT Software GmbH
- * License: GNU GPL v2 (see License.txt), GNU GPL v3 or proprietary (CommercialLicense.txt)
- * This Revision: $Id: usbdrv.h 793 2010-07-15 15:58:11Z cs $
- */
-
-#ifndef __usbdrv_h_included__
-#define __usbdrv_h_included__
-#include "usbconfig.h"
-#include "usbportability.h"
-
-/*
-Hardware Prerequisites:
-=======================
-USB lines D+ and D- MUST be wired to the same I/O port. We recommend that D+
-triggers the interrupt (best achieved by using INT0 for D+), but it is also
-possible to trigger the interrupt from D-. If D- is used, interrupts are also
-triggered by SOF packets. D- requires a pull-up of 1.5k to +3.5V (and the
-device must be powered at 3.5V) to identify as low-speed USB device. A
-pull-down or pull-up of 1M SHOULD be connected from D+ to +3.5V to prevent
-interference when no USB master is connected. If you use Zener diodes to limit
-the voltage on D+ and D-, you MUST use a pull-down resistor, not a pull-up.
-We use D+ as interrupt source and not D- because it does not trigger on
-keep-alive and RESET states. If you want to count keep-alive events with
-USB_COUNT_SOF, you MUST use D- as an interrupt source.
-
-As a compile time option, the 1.5k pull-up resistor on D- can be made
-switchable to allow the device to disconnect at will. See the definition of
-usbDeviceConnect() and usbDeviceDisconnect() further down in this file.
-
-Please adapt the values in usbconfig.h according to your hardware!
-
-The device MUST be clocked at exactly 12 MHz, 15 MHz, 16 MHz or 20 MHz
-or at 12.8 MHz resp. 16.5 MHz +/- 1%. See usbconfig-prototype.h for details.
-
-
-Limitations:
-============
-Robustness with respect to communication errors:
-The driver assumes error-free communication. It DOES check for errors in
-the PID, but does NOT check bit stuffing errors, SE0 in middle of a byte,
-token CRC (5 bit) and data CRC (16 bit). CRC checks can not be performed due
-to timing constraints: We must start sending a reply within 7 bit times.
-Bit stuffing and misplaced SE0 would have to be checked in real-time, but CPU
-performance does not permit that. The driver does not check Data0/Data1
-toggling, but application software can implement the check.
-
-Input characteristics:
-Since no differential receiver circuit is used, electrical interference
-robustness may suffer. The driver samples only one of the data lines with
-an ordinary I/O pin's input characteristics. However, since this is only a
-low speed USB implementation and the specification allows for 8 times the
-bit rate over the same hardware, we should be on the safe side. Even the spec
-requires detection of asymmetric states at high bit rate for SE0 detection.
-
-Number of endpoints:
-The driver supports the following endpoints:
-
-- Endpoint 0, the default control endpoint.
-- Any number of interrupt- or bulk-out endpoints. The data is sent to
- usbFunctionWriteOut() and USB_CFG_IMPLEMENT_FN_WRITEOUT must be defined
- to 1 to activate this feature. The endpoint number can be found in the
- global variable 'usbRxToken'.
-- One default interrupt- or bulk-in endpoint. This endpoint is used for
- interrupt- or bulk-in transfers which are not handled by any other endpoint.
- You must define USB_CFG_HAVE_INTRIN_ENDPOINT in order to activate this
- feature and call usbSetInterrupt() to send interrupt/bulk data.
-- One additional interrupt- or bulk-in endpoint. This was endpoint 3 in
- previous versions of this driver but can now be configured to any endpoint
- number. You must define USB_CFG_HAVE_INTRIN_ENDPOINT3 in order to activate
- this feature and call usbSetInterrupt3() to send interrupt/bulk data. The
- endpoint number can be set with USB_CFG_EP3_NUMBER.
-
-Please note that the USB standard forbids bulk endpoints for low speed devices!
-Most operating systems allow them anyway, but the AVR will spend 90% of the CPU
-time in the USB interrupt polling for bulk data.
-
-Maximum data payload:
-Data payload of control in and out transfers may be up to 254 bytes. In order
-to accept payload data of out transfers, you need to implement
-'usbFunctionWrite()'.
-
-USB Suspend Mode supply current:
-The USB standard limits power consumption to 500uA when the bus is in suspend
-mode. This is not a problem for self-powered devices since they don't need
-bus power anyway. Bus-powered devices can achieve this only by putting the
-CPU in sleep mode. The driver does not implement suspend handling by itself.
-However, the application may implement activity monitoring and wakeup from
-sleep. The host sends regular SE0 states on the bus to keep it active. These
-SE0 states can be detected by using D- as the interrupt source. Define
-USB_COUNT_SOF to 1 and use the global variable usbSofCount to check for bus
-activity.
-
-Operation without an USB master:
-The driver behaves neutral without connection to an USB master if D- reads
-as 1. To avoid spurious interrupts, we recommend a high impedance (e.g. 1M)
-pull-down or pull-up resistor on D+ (interrupt). If Zener diodes are used,
-use a pull-down. If D- becomes statically 0, the driver may block in the
-interrupt routine.
-
-Interrupt latency:
-The application must ensure that the USB interrupt is not disabled for more
-than 25 cycles (this is for 12 MHz, faster clocks allow longer latency).
-This implies that all interrupt routines must either have the "ISR_NOBLOCK"
-attribute set (see "avr/interrupt.h") or be written in assembler with "sei"
-as the first instruction.
-
-Maximum interrupt duration / CPU cycle consumption:
-The driver handles all USB communication during the interrupt service
-routine. The routine will not return before an entire USB message is received
-and the reply is sent. This may be up to ca. 1200 cycles @ 12 MHz (= 100us) if
-the host conforms to the standard. The driver will consume CPU cycles for all
-USB messages, even if they address another (low-speed) device on the same bus.
-
-*/
-
-/* ------------------------------------------------------------------------- */
-/* --------------------------- Module Interface ---------------------------- */
-/* ------------------------------------------------------------------------- */
-
-#define USBDRV_VERSION 20100715
-/* This define uniquely identifies a driver version. It is a decimal number
- * constructed from the driver's release date in the form YYYYMMDD. If the
- * driver's behavior or interface changes, you can use this constant to
- * distinguish versions. If it is not defined, the driver's release date is
- * older than 2006-01-25.
- */
-
-
-#ifndef USB_PUBLIC
-#define USB_PUBLIC
-#endif
-/* USB_PUBLIC is used as declaration attribute for all functions exported by
- * the USB driver. The default is no attribute (see above). You may define it
- * to static either in usbconfig.h or from the command line if you include
- * usbdrv.c instead of linking against it. Including the C module of the driver
- * directly in your code saves a couple of bytes in flash memory.
- */
-
-#ifndef __ASSEMBLER__
-#ifndef uchar
-#define uchar unsigned char
-#endif
-#ifndef schar
-#define schar signed char
-#endif
-/* shortcuts for well defined 8 bit integer types */
-
-#if USB_CFG_LONG_TRANSFERS /* if more than 254 bytes transfer size required */
-# define usbMsgLen_t unsigned
-#else
-# define usbMsgLen_t uchar
-#endif
-/* usbMsgLen_t is the data type used for transfer lengths. By default, it is
- * defined to uchar, allowing a maximum of 254 bytes (255 is reserved for
- * USB_NO_MSG below). If the usbconfig.h defines USB_CFG_LONG_TRANSFERS to 1,
- * a 16 bit data type is used, allowing up to 16384 bytes (the rest is used
- * for flags in the descriptor configuration).
- */
-#define USB_NO_MSG ((usbMsgLen_t)-1) /* constant meaning "no message" */
-
-struct usbRequest; /* forward declaration */
-
-USB_PUBLIC void usbInit(void);
-/* This function must be called before interrupts are enabled and the main
- * loop is entered. We exepct that the PORT and DDR bits for D+ and D- have
- * not been changed from their default status (which is 0). If you have changed
- * them, set both back to 0 (configure them as input with no internal pull-up).
- */
-USB_PUBLIC void usbPoll(void);
-/* This function must be called at regular intervals from the main loop.
- * Maximum delay between calls is somewhat less than 50ms (USB timeout for
- * accepting a Setup message). Otherwise the device will not be recognized.
- * Please note that debug outputs through the UART take ~ 0.5ms per byte
- * at 19200 bps.
- */
-extern uchar *usbMsgPtr;
-/* This variable may be used to pass transmit data to the driver from the
- * implementation of usbFunctionWrite(). It is also used internally by the
- * driver for standard control requests.
- */
-USB_PUBLIC usbMsgLen_t usbFunctionSetup(uchar data[8]);
-/* This function is called when the driver receives a SETUP transaction from
- * the host which is not answered by the driver itself (in practice: class and
- * vendor requests). All control transfers start with a SETUP transaction where
- * the host communicates the parameters of the following (optional) data
- * transfer. The SETUP data is available in the 'data' parameter which can
- * (and should) be casted to 'usbRequest_t *' for a more user-friendly access
- * to parameters.
- *
- * If the SETUP indicates a control-in transfer, you should provide the
- * requested data to the driver. There are two ways to transfer this data:
- * (1) Set the global pointer 'usbMsgPtr' to the base of the static RAM data
- * block and return the length of the data in 'usbFunctionSetup()'. The driver
- * will handle the rest. Or (2) return USB_NO_MSG in 'usbFunctionSetup()'. The
- * driver will then call 'usbFunctionRead()' when data is needed. See the
- * documentation for usbFunctionRead() for details.
- *
- * If the SETUP indicates a control-out transfer, the only way to receive the
- * data from the host is through the 'usbFunctionWrite()' call. If you
- * implement this function, you must return USB_NO_MSG in 'usbFunctionSetup()'
- * to indicate that 'usbFunctionWrite()' should be used. See the documentation
- * of this function for more information. If you just want to ignore the data
- * sent by the host, return 0 in 'usbFunctionSetup()'.
- *
- * Note that calls to the functions usbFunctionRead() and usbFunctionWrite()
- * are only done if enabled by the configuration in usbconfig.h.
- */
-USB_PUBLIC usbMsgLen_t usbFunctionDescriptor(struct usbRequest *rq);
-/* You need to implement this function ONLY if you provide USB descriptors at
- * runtime (which is an expert feature). It is very similar to
- * usbFunctionSetup() above, but it is called only to request USB descriptor
- * data. See the documentation of usbFunctionSetup() above for more info.
- */
-#if USB_CFG_HAVE_INTRIN_ENDPOINT
-USB_PUBLIC void usbSetInterrupt(uchar *data, uchar len);
-/* This function sets the message which will be sent during the next interrupt
- * IN transfer. The message is copied to an internal buffer and must not exceed
- * a length of 8 bytes. The message may be 0 bytes long just to indicate the
- * interrupt status to the host.
- * If you need to transfer more bytes, use a control read after the interrupt.
- */
-#define usbInterruptIsReady() (usbTxLen1 & 0x10)
-/* This macro indicates whether the last interrupt message has already been
- * sent. If you set a new interrupt message before the old was sent, the
- * message already buffered will be lost.
- */
-#if USB_CFG_HAVE_INTRIN_ENDPOINT3
-USB_PUBLIC void usbSetInterrupt3(uchar *data, uchar len);
-#define usbInterruptIsReady3() (usbTxLen3 & 0x10)
-/* Same as above for endpoint 3 */
-#endif
-#endif /* USB_CFG_HAVE_INTRIN_ENDPOINT */
-#if USB_CFG_HID_REPORT_DESCRIPTOR_LENGTH /* simplified interface for backward compatibility */
-#define usbHidReportDescriptor usbDescriptorHidReport
-/* should be declared as: PROGMEM char usbHidReportDescriptor[]; */
-/* If you implement an HID device, you need to provide a report descriptor.
- * The HID report descriptor syntax is a bit complex. If you understand how
- * report descriptors are constructed, we recommend that you use the HID
- * Descriptor Tool from usb.org, see http://www.usb.org/developers/hidpage/.
- * Otherwise you should probably start with a working example.
- */
-#endif /* USB_CFG_HID_REPORT_DESCRIPTOR_LENGTH */
-#if USB_CFG_IMPLEMENT_FN_WRITE
-USB_PUBLIC uchar usbFunctionWrite(uchar *data, uchar len);
-/* This function is called by the driver to provide a control transfer's
- * payload data (control-out). It is called in chunks of up to 8 bytes. The
- * total count provided in the current control transfer can be obtained from
- * the 'length' property in the setup data. If an error occurred during
- * processing, return 0xff (== -1). The driver will answer the entire transfer
- * with a STALL token in this case. If you have received the entire payload
- * successfully, return 1. If you expect more data, return 0. If you don't
- * know whether the host will send more data (you should know, the total is
- * provided in the usbFunctionSetup() call!), return 1.
- * NOTE: If you return 0xff for STALL, 'usbFunctionWrite()' may still be called
- * for the remaining data. You must continue to return 0xff for STALL in these
- * calls.
- * In order to get usbFunctionWrite() called, define USB_CFG_IMPLEMENT_FN_WRITE
- * to 1 in usbconfig.h and return 0xff in usbFunctionSetup()..
- */
-#endif /* USB_CFG_IMPLEMENT_FN_WRITE */
-#if USB_CFG_IMPLEMENT_FN_READ
-USB_PUBLIC uchar usbFunctionRead(uchar *data, uchar len);
-/* This function is called by the driver to ask the application for a control
- * transfer's payload data (control-in). It is called in chunks of up to 8
- * bytes each. You should copy the data to the location given by 'data' and
- * return the actual number of bytes copied. If you return less than requested,
- * the control-in transfer is terminated. If you return 0xff, the driver aborts
- * the transfer with a STALL token.
- * In order to get usbFunctionRead() called, define USB_CFG_IMPLEMENT_FN_READ
- * to 1 in usbconfig.h and return 0xff in usbFunctionSetup()..
- */
-#endif /* USB_CFG_IMPLEMENT_FN_READ */
-
-extern uchar usbRxToken; /* may be used in usbFunctionWriteOut() below */
-#if USB_CFG_IMPLEMENT_FN_WRITEOUT
-USB_PUBLIC void usbFunctionWriteOut(uchar *data, uchar len);
-/* This function is called by the driver when data is received on an interrupt-
- * or bulk-out endpoint. The endpoint number can be found in the global
- * variable usbRxToken. You must define USB_CFG_IMPLEMENT_FN_WRITEOUT to 1 in
- * usbconfig.h to get this function called.
- */
-#endif /* USB_CFG_IMPLEMENT_FN_WRITEOUT */
-#ifdef USB_CFG_PULLUP_IOPORTNAME
-#define usbDeviceConnect() ((USB_PULLUP_DDR |= (1<<USB_CFG_PULLUP_BIT)), \
- (USB_PULLUP_OUT |= (1<<USB_CFG_PULLUP_BIT)))
-#define usbDeviceDisconnect() ((USB_PULLUP_DDR &= ~(1<<USB_CFG_PULLUP_BIT)), \
- (USB_PULLUP_OUT &= ~(1<<USB_CFG_PULLUP_BIT)))
-#else /* USB_CFG_PULLUP_IOPORTNAME */
-#define usbDeviceConnect() (USBDDR &= ~(1<<USBMINUS))
-#define usbDeviceDisconnect() (USBDDR |= (1<<USBMINUS))
-#endif /* USB_CFG_PULLUP_IOPORTNAME */
-/* The macros usbDeviceConnect() and usbDeviceDisconnect() (intended to look
- * like a function) connect resp. disconnect the device from the host's USB.
- * If the constants USB_CFG_PULLUP_IOPORT and USB_CFG_PULLUP_BIT are defined
- * in usbconfig.h, a disconnect consists of removing the pull-up resisitor
- * from D-, otherwise the disconnect is done by brute-force pulling D- to GND.
- * This does not conform to the spec, but it works.
- * Please note that the USB interrupt must be disabled while the device is
- * in disconnected state, or the interrupt handler will hang! You can either
- * turn off the USB interrupt selectively with
- * USB_INTR_ENABLE &= ~(1 << USB_INTR_ENABLE_BIT)
- * or use cli() to disable interrupts globally.
- */
-extern unsigned usbCrc16(unsigned data, uchar len);
-#define usbCrc16(data, len) usbCrc16((unsigned)(data), len)
-/* This function calculates the binary complement of the data CRC used in
- * USB data packets. The value is used to build raw transmit packets.
- * You may want to use this function for data checksums or to verify received
- * data. We enforce 16 bit calling conventions for compatibility with IAR's
- * tiny memory model.
- */
-extern unsigned usbCrc16Append(unsigned data, uchar len);
-#define usbCrc16Append(data, len) usbCrc16Append((unsigned)(data), len)
-/* This function is equivalent to usbCrc16() above, except that it appends
- * the 2 bytes CRC (lowbyte first) in the 'data' buffer after reading 'len'
- * bytes.
- */
-#if USB_CFG_HAVE_MEASURE_FRAME_LENGTH
-extern unsigned usbMeasureFrameLength(void);
-/* This function MUST be called IMMEDIATELY AFTER USB reset and measures 1/7 of
- * the number of CPU cycles during one USB frame minus one low speed bit
- * length. In other words: return value = 1499 * (F_CPU / 10.5 MHz)
- * Since this is a busy wait, you MUST disable all interrupts with cli() before
- * calling this function.
- * This can be used to calibrate the AVR's RC oscillator.
- */
-#endif
-extern uchar usbConfiguration;
-/* This value contains the current configuration set by the host. The driver
- * allows setting and querying of this variable with the USB SET_CONFIGURATION
- * and GET_CONFIGURATION requests, but does not use it otherwise.
- * You may want to reflect the "configured" status with a LED on the device or
- * switch on high power parts of the circuit only if the device is configured.
- */
-#if USB_COUNT_SOF
-extern volatile uchar usbSofCount;
-/* This variable is incremented on every SOF packet. It is only available if
- * the macro USB_COUNT_SOF is defined to a value != 0.
- */
-#endif
-#if USB_CFG_CHECK_DATA_TOGGLING
-extern uchar usbCurrentDataToken;
-/* This variable can be checked in usbFunctionWrite() and usbFunctionWriteOut()
- * to ignore duplicate packets.
- */
-#endif
-
-#define USB_STRING_DESCRIPTOR_HEADER(stringLength) ((2*(stringLength)+2) | (3<<8))
-/* This macro builds a descriptor header for a string descriptor given the
- * string's length. See usbdrv.c for an example how to use it.
- */
-#if USB_CFG_HAVE_FLOWCONTROL
-extern volatile schar usbRxLen;
-#define usbDisableAllRequests() usbRxLen = -1
-/* Must be called from usbFunctionWrite(). This macro disables all data input
- * from the USB interface. Requests from the host are answered with a NAK
- * while they are disabled.
- */
-#define usbEnableAllRequests() usbRxLen = 0
-/* May only be called if requests are disabled. This macro enables input from
- * the USB interface after it has been disabled with usbDisableAllRequests().
- */
-#define usbAllRequestsAreDisabled() (usbRxLen < 0)
-/* Use this macro to find out whether requests are disabled. It may be needed
- * to ensure that usbEnableAllRequests() is never called when requests are
- * enabled.
- */
-#endif
-
-#define USB_SET_DATATOKEN1(token) usbTxBuf1[0] = token
-#define USB_SET_DATATOKEN3(token) usbTxBuf3[0] = token
-/* These two macros can be used by application software to reset data toggling
- * for interrupt-in endpoints 1 and 3. Since the token is toggled BEFORE
- * sending data, you must set the opposite value of the token which should come
- * first.
- */
-
-#endif /* __ASSEMBLER__ */
-
-
-/* ------------------------------------------------------------------------- */
-/* ----------------- Definitions for Descriptor Properties ----------------- */
-/* ------------------------------------------------------------------------- */
-/* This is advanced stuff. See usbconfig-prototype.h for more information
- * about the various methods to define USB descriptors. If you do nothing,
- * the default descriptors will be used.
- */
-#define USB_PROP_IS_DYNAMIC (1 << 14)
-/* If this property is set for a descriptor, usbFunctionDescriptor() will be
- * used to obtain the particular descriptor. Data directly returned via
- * usbMsgPtr are FLASH data by default, combine (OR) with USB_PROP_IS_RAM to
- * return RAM data.
- */
-#define USB_PROP_IS_RAM (1 << 15)
-/* If this property is set for a descriptor, the data is read from RAM
- * memory instead of Flash. The property is used for all methods to provide
- * external descriptors.
- */
-#define USB_PROP_LENGTH(len) ((len) & 0x3fff)
-/* If a static external descriptor is used, this is the total length of the
- * descriptor in bytes.
- */
-
-/* all descriptors which may have properties: */
-#ifndef USB_CFG_DESCR_PROPS_DEVICE
-#define USB_CFG_DESCR_PROPS_DEVICE 0
-#endif
-#ifndef USB_CFG_DESCR_PROPS_CONFIGURATION
-#define USB_CFG_DESCR_PROPS_CONFIGURATION 0
-#endif
-#ifndef USB_CFG_DESCR_PROPS_STRINGS
-#define USB_CFG_DESCR_PROPS_STRINGS 0
-#endif
-#ifndef USB_CFG_DESCR_PROPS_STRING_0
-#define USB_CFG_DESCR_PROPS_STRING_0 0
-#endif
-#ifndef USB_CFG_DESCR_PROPS_STRING_VENDOR
-#define USB_CFG_DESCR_PROPS_STRING_VENDOR 0
-#endif
-#ifndef USB_CFG_DESCR_PROPS_STRING_PRODUCT
-#define USB_CFG_DESCR_PROPS_STRING_PRODUCT 0
-#endif
-#ifndef USB_CFG_DESCR_PROPS_STRING_SERIAL_NUMBER
-#define USB_CFG_DESCR_PROPS_STRING_SERIAL_NUMBER 0
-#endif
-#ifndef USB_CFG_DESCR_PROPS_HID
-#define USB_CFG_DESCR_PROPS_HID 0
-#endif
-#if !(USB_CFG_DESCR_PROPS_HID_REPORT)
-# undef USB_CFG_DESCR_PROPS_HID_REPORT
-# if USB_CFG_HID_REPORT_DESCRIPTOR_LENGTH /* do some backward compatibility tricks */
-# define USB_CFG_DESCR_PROPS_HID_REPORT USB_CFG_HID_REPORT_DESCRIPTOR_LENGTH
-# else
-# define USB_CFG_DESCR_PROPS_HID_REPORT 0
-# endif
-#endif
-#ifndef USB_CFG_DESCR_PROPS_UNKNOWN
-#define USB_CFG_DESCR_PROPS_UNKNOWN 0
-#endif
-
-/* ------------------ forward declaration of descriptors ------------------- */
-/* If you use external static descriptors, they must be stored in global
- * arrays as declared below:
- */
-#ifndef __ASSEMBLER__
-extern
-#if !(USB_CFG_DESCR_PROPS_DEVICE & USB_PROP_IS_RAM)
-PROGMEM
-#endif
-const char usbDescriptorDevice[];
-
-extern
-#if !(USB_CFG_DESCR_PROPS_CONFIGURATION & USB_PROP_IS_RAM)
-PROGMEM
-#endif
-const char usbDescriptorConfiguration[];
-
-extern
-#if !(USB_CFG_DESCR_PROPS_HID_REPORT & USB_PROP_IS_RAM)
-PROGMEM
-#endif
-const char usbDescriptorHidReport[];
-
-extern
-#if !(USB_CFG_DESCR_PROPS_STRING_0 & USB_PROP_IS_RAM)
-PROGMEM
-#endif
-const char usbDescriptorString0[];
-
-extern
-#if !(USB_CFG_DESCR_PROPS_STRING_VENDOR & USB_PROP_IS_RAM)
-PROGMEM
-#endif
-const int usbDescriptorStringVendor[];
-
-extern
-#if !(USB_CFG_DESCR_PROPS_STRING_PRODUCT & USB_PROP_IS_RAM)
-PROGMEM
-#endif
-const int usbDescriptorStringDevice[];
-
-extern
-#if !(USB_CFG_DESCR_PROPS_STRING_SERIAL_NUMBER & USB_PROP_IS_RAM)
-PROGMEM
-#endif
-const int usbDescriptorStringSerialNumber[];
-
-#endif /* __ASSEMBLER__ */
-
-/* ------------------------------------------------------------------------- */
-/* ------------------------ General Purpose Macros ------------------------- */
-/* ------------------------------------------------------------------------- */
-
-#define USB_CONCAT(a, b) a ## b
-#define USB_CONCAT_EXPANDED(a, b) USB_CONCAT(a, b)
-
-#define USB_OUTPORT(name) USB_CONCAT(PORT, name)
-#define USB_INPORT(name) USB_CONCAT(PIN, name)
-#define USB_DDRPORT(name) USB_CONCAT(DDR, name)
-/* The double-define trick above lets us concatenate strings which are
- * defined by macros.
- */
-
-/* ------------------------------------------------------------------------- */
-/* ------------------------- Constant definitions -------------------------- */
-/* ------------------------------------------------------------------------- */
-
-#if !defined __ASSEMBLER__ && (!defined USB_CFG_VENDOR_ID || !defined USB_CFG_DEVICE_ID)
-#warning "You should define USB_CFG_VENDOR_ID and USB_CFG_DEVICE_ID in usbconfig.h"
-/* If the user has not defined IDs, we default to obdev's free IDs.
- * See USB-IDs-for-free.txt for details.
- */
-#endif
-
-/* make sure we have a VID and PID defined, byte order is lowbyte, highbyte */
-#ifndef USB_CFG_VENDOR_ID
-# define USB_CFG_VENDOR_ID 0xc0, 0x16 /* = 0x16c0 = 5824 = voti.nl */
-#endif
-
-#ifndef USB_CFG_DEVICE_ID
-# if USB_CFG_HID_REPORT_DESCRIPTOR_LENGTH
-# define USB_CFG_DEVICE_ID 0xdf, 0x05 /* = 0x5df = 1503, shared PID for HIDs */
-# elif USB_CFG_INTERFACE_CLASS == 2
-# define USB_CFG_DEVICE_ID 0xe1, 0x05 /* = 0x5e1 = 1505, shared PID for CDC Modems */
-# else
-# define USB_CFG_DEVICE_ID 0xdc, 0x05 /* = 0x5dc = 1500, obdev's free PID */
-# endif
-#endif
-
-/* Derive Output, Input and DataDirection ports from port names */
-#ifndef USB_CFG_IOPORTNAME
-#error "You must define USB_CFG_IOPORTNAME in usbconfig.h, see usbconfig-prototype.h"
-#endif
-
-#define USBOUT USB_OUTPORT(USB_CFG_IOPORTNAME)
-#define USB_PULLUP_OUT USB_OUTPORT(USB_CFG_PULLUP_IOPORTNAME)
-#define USBIN USB_INPORT(USB_CFG_IOPORTNAME)
-#define USBDDR USB_DDRPORT(USB_CFG_IOPORTNAME)
-#define USB_PULLUP_DDR USB_DDRPORT(USB_CFG_PULLUP_IOPORTNAME)
-
-#define USBMINUS USB_CFG_DMINUS_BIT
-#define USBPLUS USB_CFG_DPLUS_BIT
-#define USBIDLE (1<<USB_CFG_DMINUS_BIT) /* value representing J state */
-#define USBMASK ((1<<USB_CFG_DPLUS_BIT) | (1<<USB_CFG_DMINUS_BIT)) /* mask for USB I/O bits */
-
-/* defines for backward compatibility with older driver versions: */
-#define USB_CFG_IOPORT USB_OUTPORT(USB_CFG_IOPORTNAME)
-#ifdef USB_CFG_PULLUP_IOPORTNAME
-#define USB_CFG_PULLUP_IOPORT USB_OUTPORT(USB_CFG_PULLUP_IOPORTNAME)
-#endif
-
-#ifndef USB_CFG_EP3_NUMBER /* if not defined in usbconfig.h */
-#define USB_CFG_EP3_NUMBER 3
-#endif
-
-#ifndef USB_CFG_HAVE_INTRIN_ENDPOINT3
-#define USB_CFG_HAVE_INTRIN_ENDPOINT3 0
-#endif
-
-#define USB_BUFSIZE 11 /* PID, 8 bytes data, 2 bytes CRC */
-
-/* ----- Try to find registers and bits responsible for ext interrupt 0 ----- */
-
-#ifndef USB_INTR_CFG /* allow user to override our default */
-# if defined EICRA
-# define USB_INTR_CFG EICRA
-# else
-# define USB_INTR_CFG MCUCR
-# endif
-#endif
-#ifndef USB_INTR_CFG_SET /* allow user to override our default */
-# if defined(USB_COUNT_SOF) || defined(USB_SOF_HOOK)
-# define USB_INTR_CFG_SET (1 << ISC01) /* cfg for falling edge */
- /* If any SOF logic is used, the interrupt must be wired to D- where
- * we better trigger on falling edge
- */
-# else
-# define USB_INTR_CFG_SET ((1 << ISC00) | (1 << ISC01)) /* cfg for rising edge */
-# endif
-#endif
-#ifndef USB_INTR_CFG_CLR /* allow user to override our default */
-# define USB_INTR_CFG_CLR 0 /* no bits to clear */
-#endif
-
-#ifndef USB_INTR_ENABLE /* allow user to override our default */
-# if defined GIMSK
-# define USB_INTR_ENABLE GIMSK
-# elif defined EIMSK
-# define USB_INTR_ENABLE EIMSK
-# else
-# define USB_INTR_ENABLE GICR
-# endif
-#endif
-#ifndef USB_INTR_ENABLE_BIT /* allow user to override our default */
-# define USB_INTR_ENABLE_BIT INT0
-#endif
-
-#ifndef USB_INTR_PENDING /* allow user to override our default */
-# if defined EIFR
-# define USB_INTR_PENDING EIFR
-# else
-# define USB_INTR_PENDING GIFR
-# endif
-#endif
-#ifndef USB_INTR_PENDING_BIT /* allow user to override our default */
-# define USB_INTR_PENDING_BIT INTF0
-#endif
-
-/*
-The defines above don't work for the following chips
-at90c8534: no ISC0?, no PORTB, can't find a data sheet
-at86rf401: no PORTB, no MCUCR etc, low clock rate
-atmega103: no ISC0? (maybe omission in header, can't find data sheet)
-atmega603: not defined in avr-libc
-at43usb320, at43usb355, at76c711: have USB anyway
-at94k: is different...
-
-at90s1200, attiny11, attiny12, attiny15, attiny28: these have no RAM
-*/
-
-/* ------------------------------------------------------------------------- */
-/* ----------------- USB Specification Constants and Types ----------------- */
-/* ------------------------------------------------------------------------- */
-
-/* USB Token values */
-#define USBPID_SETUP 0x2d
-#define USBPID_OUT 0xe1
-#define USBPID_IN 0x69
-#define USBPID_DATA0 0xc3
-#define USBPID_DATA1 0x4b
-
-#define USBPID_ACK 0xd2
-#define USBPID_NAK 0x5a
-#define USBPID_STALL 0x1e
-
-#ifndef USB_INITIAL_DATATOKEN
-#define USB_INITIAL_DATATOKEN USBPID_DATA1
-#endif
-
-#ifndef __ASSEMBLER__
-
-typedef struct usbTxStatus{
- volatile uchar len;
- uchar buffer[USB_BUFSIZE];
-}usbTxStatus_t;
-
-extern usbTxStatus_t usbTxStatus1, usbTxStatus3;
-#define usbTxLen1 usbTxStatus1.len
-#define usbTxBuf1 usbTxStatus1.buffer
-#define usbTxLen3 usbTxStatus3.len
-#define usbTxBuf3 usbTxStatus3.buffer
-
-
-typedef union usbWord{
- unsigned word;
- uchar bytes[2];
-}usbWord_t;
-
-typedef struct usbRequest{
- uchar bmRequestType;
- uchar bRequest;
- usbWord_t wValue;
- usbWord_t wIndex;
- usbWord_t wLength;
-}usbRequest_t;
-/* This structure matches the 8 byte setup request */
-#endif
-
-/* bmRequestType field in USB setup:
- * d t t r r r r r, where
- * d ..... direction: 0=host->device, 1=device->host
- * t ..... type: 0=standard, 1=class, 2=vendor, 3=reserved
- * r ..... recipient: 0=device, 1=interface, 2=endpoint, 3=other
- */
-
-/* USB setup recipient values */
-#define USBRQ_RCPT_MASK 0x1f
-#define USBRQ_RCPT_DEVICE 0
-#define USBRQ_RCPT_INTERFACE 1
-#define USBRQ_RCPT_ENDPOINT 2
-
-/* USB request type values */
-#define USBRQ_TYPE_MASK 0x60
-#define USBRQ_TYPE_STANDARD (0<<5)
-#define USBRQ_TYPE_CLASS (1<<5)
-#define USBRQ_TYPE_VENDOR (2<<5)
-
-/* USB direction values: */
-#define USBRQ_DIR_MASK 0x80
-#define USBRQ_DIR_HOST_TO_DEVICE (0<<7)
-#define USBRQ_DIR_DEVICE_TO_HOST (1<<7)
-
-/* USB Standard Requests */
-#define USBRQ_GET_STATUS 0
-#define USBRQ_CLEAR_FEATURE 1
-#define USBRQ_SET_FEATURE 3
-#define USBRQ_SET_ADDRESS 5
-#define USBRQ_GET_DESCRIPTOR 6
-#define USBRQ_SET_DESCRIPTOR 7
-#define USBRQ_GET_CONFIGURATION 8
-#define USBRQ_SET_CONFIGURATION 9
-#define USBRQ_GET_INTERFACE 10
-#define USBRQ_SET_INTERFACE 11
-#define USBRQ_SYNCH_FRAME 12
-
-/* USB descriptor constants */
-#define USBDESCR_DEVICE 1
-#define USBDESCR_CONFIG 2
-#define USBDESCR_STRING 3
-#define USBDESCR_INTERFACE 4
-#define USBDESCR_ENDPOINT 5
-#define USBDESCR_HID 0x21
-#define USBDESCR_HID_REPORT 0x22
-#define USBDESCR_HID_PHYS 0x23
-
-//#define USBATTR_BUSPOWER 0x80 // USB 1.1 does not define this value any more
-#define USBATTR_SELFPOWER 0x40
-#define USBATTR_REMOTEWAKE 0x20
-
-/* USB HID Requests */
-#define USBRQ_HID_GET_REPORT 0x01
-#define USBRQ_HID_GET_IDLE 0x02
-#define USBRQ_HID_GET_PROTOCOL 0x03
-#define USBRQ_HID_SET_REPORT 0x09
-#define USBRQ_HID_SET_IDLE 0x0a
-#define USBRQ_HID_SET_PROTOCOL 0x0b
-
-/* ------------------------------------------------------------------------- */
-
-#endif /* __usbdrv_h_included__ */