Remove core library and build files

1 files changed, 0 insertions, 625 deletions

diff --git a/protocol/vusb/usbdrv/usbdrv.c b/protocol/vusb/usbdrv/usbdrv.c
deleted file mode 100644
index 2e8dd8756b..0000000000
--- a/protocol/vusb/usbdrv/usbdrv.c
+++ /dev/null
@@ -1,625 +0,0 @@
-/* Name: usbdrv.c
- * 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.c 791 2010-07-15 15:56:13Z cs $
- */
-
-#include "usbportability.h"
-#include "usbdrv.h"
-#include "oddebug.h"
-
-/*
-General Description:
-This module implements the C-part of the USB driver. See usbdrv.h for a
-documentation of the entire driver.
-*/
-
-/* ------------------------------------------------------------------------- */
-
-/* raw USB registers / interface to assembler code: */
-uchar usbRxBuf[2*USB_BUFSIZE];  /* raw RX buffer: PID, 8 bytes data, 2 bytes CRC */
-uchar       usbInputBufOffset;  /* offset in usbRxBuf used for low level receiving */
-uchar       usbDeviceAddr;      /* assigned during enumeration, defaults to 0 */
-uchar       usbNewDeviceAddr;   /* device ID which should be set after status phase */
-uchar       usbConfiguration;   /* currently selected configuration. Administered by driver, but not used */
-volatile schar usbRxLen;        /* = 0; number of bytes in usbRxBuf; 0 means free, -1 for flow control */
-uchar       usbCurrentTok;      /* last token received or endpoint number for last OUT token if != 0 */
-uchar       usbRxToken;         /* token for data we received; or endpont number for last OUT */
-volatile uchar usbTxLen = USBPID_NAK;   /* number of bytes to transmit with next IN token or handshake token */
-uchar       usbTxBuf[USB_BUFSIZE];/* data to transmit with next IN, free if usbTxLen contains handshake token */
-#if USB_COUNT_SOF
-volatile uchar  usbSofCount;    /* incremented by assembler module every SOF */
-#endif
-#if USB_CFG_HAVE_INTRIN_ENDPOINT && !USB_CFG_SUPPRESS_INTR_CODE
-usbTxStatus_t  usbTxStatus1;
-#   if USB_CFG_HAVE_INTRIN_ENDPOINT3
-usbTxStatus_t  usbTxStatus3;
-#   endif
-#endif
-#if USB_CFG_CHECK_DATA_TOGGLING
-uchar       usbCurrentDataToken;/* when we check data toggling to ignore duplicate packets */
-#endif
-
-/* USB status registers / not shared with asm code */
-uchar               *usbMsgPtr;     /* data to transmit next -- ROM or RAM address */
-static usbMsgLen_t  usbMsgLen = USB_NO_MSG; /* remaining number of bytes */
-static uchar        usbMsgFlags;    /* flag values see below */
-
-#define USB_FLG_MSGPTR_IS_ROM   (1<<6)
-#define USB_FLG_USE_USER_RW     (1<<7)
-
-/*
-optimizing hints:
-- do not post/pre inc/dec integer values in operations
-- assign value of USB_READ_FLASH() to register variables and don't use side effects in arg
-- use narrow scope for variables which should be in X/Y/Z register
-- assign char sized expressions to variables to force 8 bit arithmetics
-*/
-
-/* -------------------------- String Descriptors --------------------------- */
-
-#if USB_CFG_DESCR_PROPS_STRINGS == 0
-
-#if USB_CFG_DESCR_PROPS_STRING_0 == 0
-#undef USB_CFG_DESCR_PROPS_STRING_0
-#define USB_CFG_DESCR_PROPS_STRING_0    sizeof(usbDescriptorString0)
-const PROGMEM char usbDescriptorString0[] = { /* language descriptor */
-    4,          /* sizeof(usbDescriptorString0): length of descriptor in bytes */
-    3,          /* descriptor type */
-    0x09, 0x04, /* language index (0x0409 = US-English) */
-};
-#endif
-
-#if USB_CFG_DESCR_PROPS_STRING_VENDOR == 0 && USB_CFG_VENDOR_NAME_LEN
-#undef USB_CFG_DESCR_PROPS_STRING_VENDOR
-#define USB_CFG_DESCR_PROPS_STRING_VENDOR   sizeof(usbDescriptorStringVendor)
-const PROGMEM int  usbDescriptorStringVendor[] = {
-    USB_STRING_DESCRIPTOR_HEADER(USB_CFG_VENDOR_NAME_LEN),
-    USB_CFG_VENDOR_NAME
-};
-#endif
-
-#if USB_CFG_DESCR_PROPS_STRING_PRODUCT == 0 && USB_CFG_DEVICE_NAME_LEN
-#undef USB_CFG_DESCR_PROPS_STRING_PRODUCT
-#define USB_CFG_DESCR_PROPS_STRING_PRODUCT   sizeof(usbDescriptorStringDevice)
-const PROGMEM int  usbDescriptorStringDevice[] = {
-    USB_STRING_DESCRIPTOR_HEADER(USB_CFG_DEVICE_NAME_LEN),
-    USB_CFG_DEVICE_NAME
-};
-#endif
-
-#if USB_CFG_DESCR_PROPS_STRING_SERIAL_NUMBER == 0 && USB_CFG_SERIAL_NUMBER_LEN
-#undef USB_CFG_DESCR_PROPS_STRING_SERIAL_NUMBER
-#define USB_CFG_DESCR_PROPS_STRING_SERIAL_NUMBER    sizeof(usbDescriptorStringSerialNumber)
-PROGMEM int usbDescriptorStringSerialNumber[] = {
-    USB_STRING_DESCRIPTOR_HEADER(USB_CFG_SERIAL_NUMBER_LEN),
-    USB_CFG_SERIAL_NUMBER
-};
-#endif
-
-#endif  /* USB_CFG_DESCR_PROPS_STRINGS == 0 */
-
-/* --------------------------- Device Descriptor --------------------------- */
-
-#if USB_CFG_DESCR_PROPS_DEVICE == 0
-#undef USB_CFG_DESCR_PROPS_DEVICE
-#define USB_CFG_DESCR_PROPS_DEVICE  sizeof(usbDescriptorDevice)
-const PROGMEM char usbDescriptorDevice[] = {    /* USB device descriptor */
-    18,         /* sizeof(usbDescriptorDevice): length of descriptor in bytes */
-    USBDESCR_DEVICE,        /* descriptor type */
-    0x10, 0x01,             /* USB version supported */
-    USB_CFG_DEVICE_CLASS,
-    USB_CFG_DEVICE_SUBCLASS,
-    0,                      /* protocol */
-    8,                      /* max packet size */
-    /* the following two casts affect the first byte of the constant only, but
-     * that's sufficient to avoid a warning with the default values.
-     */
-    (char)USB_CFG_VENDOR_ID,/* 2 bytes */
-    (char)USB_CFG_DEVICE_ID,/* 2 bytes */
-    USB_CFG_DEVICE_VERSION, /* 2 bytes */
-    USB_CFG_DESCR_PROPS_STRING_VENDOR != 0 ? 1 : 0,         /* manufacturer string index */
-    USB_CFG_DESCR_PROPS_STRING_PRODUCT != 0 ? 2 : 0,        /* product string index */
-    USB_CFG_DESCR_PROPS_STRING_SERIAL_NUMBER != 0 ? 3 : 0,  /* serial number string index */
-    1,          /* number of configurations */
-};
-#endif
-
-/* ----------------------- Configuration Descriptor ------------------------ */
-
-#if USB_CFG_DESCR_PROPS_HID_REPORT != 0 && USB_CFG_DESCR_PROPS_HID == 0
-#undef USB_CFG_DESCR_PROPS_HID
-#define USB_CFG_DESCR_PROPS_HID     9   /* length of HID descriptor in config descriptor below */
-#endif
-
-#if USB_CFG_DESCR_PROPS_CONFIGURATION == 0
-#undef USB_CFG_DESCR_PROPS_CONFIGURATION
-#define USB_CFG_DESCR_PROPS_CONFIGURATION   sizeof(usbDescriptorConfiguration)
-PROGMEM char usbDescriptorConfiguration[] = {    /* USB configuration descriptor */
-    9,          /* sizeof(usbDescriptorConfiguration): length of descriptor in bytes */
-    USBDESCR_CONFIG,    /* descriptor type */
-    18 + 7 * USB_CFG_HAVE_INTRIN_ENDPOINT + 7 * USB_CFG_HAVE_INTRIN_ENDPOINT3 +
-                (USB_CFG_DESCR_PROPS_HID & 0xff), 0,
-                /* total length of data returned (including inlined descriptors) */
-    1,          /* number of interfaces in this configuration */
-    1,          /* index of this configuration */
-    0,          /* configuration name string index */
-#if USB_CFG_IS_SELF_POWERED
-    (1 << 7) | USBATTR_SELFPOWER,       /* attributes */
-#else
-    (1 << 7),                           /* attributes */
-#endif
-    USB_CFG_MAX_BUS_POWER/2,            /* max USB current in 2mA units */
-/* interface descriptor follows inline: */
-    9,          /* sizeof(usbDescrInterface): length of descriptor in bytes */
-    USBDESCR_INTERFACE, /* descriptor type */
-    0,          /* index of this interface */
-    0,          /* alternate setting for this interface */
-    USB_CFG_HAVE_INTRIN_ENDPOINT + USB_CFG_HAVE_INTRIN_ENDPOINT3, /* endpoints excl 0: number of endpoint descriptors to follow */
-    USB_CFG_INTERFACE_CLASS,
-    USB_CFG_INTERFACE_SUBCLASS,
-    USB_CFG_INTERFACE_PROTOCOL,
-    0,          /* string index for interface */
-#if (USB_CFG_DESCR_PROPS_HID & 0xff)    /* HID descriptor */
-    9,          /* sizeof(usbDescrHID): length of descriptor in bytes */
-    USBDESCR_HID,   /* descriptor type: HID */
-    0x01, 0x01, /* BCD representation of HID version */
-    0x00,       /* target country code */
-    0x01,       /* number of HID Report (or other HID class) Descriptor infos to follow */
-    0x22,       /* descriptor type: report */
-    USB_CFG_HID_REPORT_DESCRIPTOR_LENGTH, 0,  /* total length of report descriptor */
-#endif
-#if USB_CFG_HAVE_INTRIN_ENDPOINT    /* endpoint descriptor for endpoint 1 */
-    7,          /* sizeof(usbDescrEndpoint) */
-    USBDESCR_ENDPOINT,  /* descriptor type = endpoint */
-    (char)0x81, /* IN endpoint number 1 */
-    0x03,       /* attrib: Interrupt endpoint */
-    8, 0,       /* maximum packet size */
-    USB_CFG_INTR_POLL_INTERVAL, /* in ms */
-#endif
-#if USB_CFG_HAVE_INTRIN_ENDPOINT3   /* endpoint descriptor for endpoint 3 */
-    7,          /* sizeof(usbDescrEndpoint) */
-    USBDESCR_ENDPOINT,  /* descriptor type = endpoint */
-    (char)(0x80 | USB_CFG_EP3_NUMBER), /* IN endpoint number 3 */
-    0x03,       /* attrib: Interrupt endpoint */
-    8, 0,       /* maximum packet size */
-    USB_CFG_INTR_POLL_INTERVAL, /* in ms */
-#endif
-};
-#endif
-
-/* ------------------------------------------------------------------------- */
-
-static inline void  usbResetDataToggling(void)
-{
-#if USB_CFG_HAVE_INTRIN_ENDPOINT && !USB_CFG_SUPPRESS_INTR_CODE
-    USB_SET_DATATOKEN1(USB_INITIAL_DATATOKEN);  /* reset data toggling for interrupt endpoint */
-#   if USB_CFG_HAVE_INTRIN_ENDPOINT3
-    USB_SET_DATATOKEN3(USB_INITIAL_DATATOKEN);  /* reset data toggling for interrupt endpoint */
-#   endif
-#endif
-}
-
-static inline void  usbResetStall(void)
-{
-#if USB_CFG_IMPLEMENT_HALT && USB_CFG_HAVE_INTRIN_ENDPOINT
-        usbTxLen1 = USBPID_NAK;
-#if USB_CFG_HAVE_INTRIN_ENDPOINT3
-        usbTxLen3 = USBPID_NAK;
-#endif
-#endif
-}
-
-/* ------------------------------------------------------------------------- */
-
-#if !USB_CFG_SUPPRESS_INTR_CODE
-#if USB_CFG_HAVE_INTRIN_ENDPOINT
-static void usbGenericSetInterrupt(uchar *data, uchar len, usbTxStatus_t *txStatus)
-{
-uchar   *p;
-char    i;
-
-#if USB_CFG_IMPLEMENT_HALT
-    if(usbTxLen1 == USBPID_STALL)
-        return;
-#endif
-    if(txStatus->len & 0x10){   /* packet buffer was empty */
-        txStatus->buffer[0] ^= USBPID_DATA0 ^ USBPID_DATA1; /* toggle token */
-    }else{
-        txStatus->len = USBPID_NAK; /* avoid sending outdated (overwritten) interrupt data */
-    }
-    p = txStatus->buffer + 1;
-    i = len;
-    do{                         /* if len == 0, we still copy 1 byte, but that's no problem */
-        *p++ = *data++;
-    }while(--i > 0);            /* loop control at the end is 2 bytes shorter than at beginning */
-    usbCrc16Append(&txStatus->buffer[1], len);
-    txStatus->len = len + 4;    /* len must be given including sync byte */
-    DBG2(0x21 + (((int)txStatus >> 3) & 3), txStatus->buffer, len + 3);
-}
-
-USB_PUBLIC void usbSetInterrupt(uchar *data, uchar len)
-{
-    usbGenericSetInterrupt(data, len, &usbTxStatus1);
-}
-#endif
-
-#if USB_CFG_HAVE_INTRIN_ENDPOINT3
-USB_PUBLIC void usbSetInterrupt3(uchar *data, uchar len)
-{
-    usbGenericSetInterrupt(data, len, &usbTxStatus3);
-}
-#endif
-#endif /* USB_CFG_SUPPRESS_INTR_CODE */
-
-/* ------------------ utilities for code following below ------------------- */
-
-/* Use defines for the switch statement so that we can choose between an
- * if()else if() and a switch/case based implementation. switch() is more
- * efficient for a LARGE set of sequential choices, if() is better in all other
- * cases.
- */
-#if USB_CFG_USE_SWITCH_STATEMENT
-#   define SWITCH_START(cmd)       switch(cmd){{
-#   define SWITCH_CASE(value)      }break; case (value):{
-#   define SWITCH_CASE2(v1,v2)     }break; case (v1): case(v2):{
-#   define SWITCH_CASE3(v1,v2,v3)  }break; case (v1): case(v2): case(v3):{
-#   define SWITCH_DEFAULT          }break; default:{
-#   define SWITCH_END              }}
-#else
-#   define SWITCH_START(cmd)       {uchar _cmd = cmd; if(0){
-#   define SWITCH_CASE(value)      }else if(_cmd == (value)){
-#   define SWITCH_CASE2(v1,v2)     }else if(_cmd == (v1) || _cmd == (v2)){
-#   define SWITCH_CASE3(v1,v2,v3)  }else if(_cmd == (v1) || _cmd == (v2) || (_cmd == v3)){
-#   define SWITCH_DEFAULT          }else{
-#   define SWITCH_END              }}
-#endif
-
-#ifndef USB_RX_USER_HOOK
-#define USB_RX_USER_HOOK(data, len)
-#endif
-#ifndef USB_SET_ADDRESS_HOOK
-#define USB_SET_ADDRESS_HOOK()
-#endif
-
-/* ------------------------------------------------------------------------- */
-
-/* We use if() instead of #if in the macro below because #if can't be used
- * in macros and the compiler optimizes constant conditions anyway.
- * This may cause problems with undefined symbols if compiled without
- * optimizing!
- */
-#define GET_DESCRIPTOR(cfgProp, staticName)         \
-    if(cfgProp){                                    \
-        if((cfgProp) & USB_PROP_IS_RAM)             \
-            flags = 0;                              \
-        if((cfgProp) & USB_PROP_IS_DYNAMIC){        \
-            len = usbFunctionDescriptor(rq);        \
-        }else{                                      \
-            len = USB_PROP_LENGTH(cfgProp);         \
-            usbMsgPtr = (uchar *)(staticName);      \
-        }                                           \
-    }
-
-/* usbDriverDescriptor() is similar to usbFunctionDescriptor(), but used
- * internally for all types of descriptors.
- */
-static inline usbMsgLen_t usbDriverDescriptor(usbRequest_t *rq)
-{
-usbMsgLen_t len = 0;
-uchar       flags = USB_FLG_MSGPTR_IS_ROM;
-
-    SWITCH_START(rq->wValue.bytes[1])
-    SWITCH_CASE(USBDESCR_DEVICE)    /* 1 */
-        GET_DESCRIPTOR(USB_CFG_DESCR_PROPS_DEVICE, usbDescriptorDevice)
-    SWITCH_CASE(USBDESCR_CONFIG)    /* 2 */
-        GET_DESCRIPTOR(USB_CFG_DESCR_PROPS_CONFIGURATION, usbDescriptorConfiguration)
-    SWITCH_CASE(USBDESCR_STRING)    /* 3 */
-#if USB_CFG_DESCR_PROPS_STRINGS & USB_PROP_IS_DYNAMIC
-        if(USB_CFG_DESCR_PROPS_STRINGS & USB_PROP_IS_RAM)
-            flags = 0;
-        len = usbFunctionDescriptor(rq);
-#else   /* USB_CFG_DESCR_PROPS_STRINGS & USB_PROP_IS_DYNAMIC */
-        SWITCH_START(rq->wValue.bytes[0])
-        SWITCH_CASE(0)
-            GET_DESCRIPTOR(USB_CFG_DESCR_PROPS_STRING_0, usbDescriptorString0)
-        SWITCH_CASE(1)
-            GET_DESCRIPTOR(USB_CFG_DESCR_PROPS_STRING_VENDOR, usbDescriptorStringVendor)
-        SWITCH_CASE(2)
-            GET_DESCRIPTOR(USB_CFG_DESCR_PROPS_STRING_PRODUCT, usbDescriptorStringDevice)
-        SWITCH_CASE(3)
-            GET_DESCRIPTOR(USB_CFG_DESCR_PROPS_STRING_SERIAL_NUMBER, usbDescriptorStringSerialNumber)
-        SWITCH_DEFAULT
-            if(USB_CFG_DESCR_PROPS_UNKNOWN & USB_PROP_IS_DYNAMIC){
-                len = usbFunctionDescriptor(rq);
-            }
-        SWITCH_END
-#endif  /* USB_CFG_DESCR_PROPS_STRINGS & USB_PROP_IS_DYNAMIC */
-#if USB_CFG_DESCR_PROPS_HID_REPORT  /* only support HID descriptors if enabled */
-    SWITCH_CASE(USBDESCR_HID)       /* 0x21 */
-        GET_DESCRIPTOR(USB_CFG_DESCR_PROPS_HID, usbDescriptorConfiguration + 18)
-    SWITCH_CASE(USBDESCR_HID_REPORT)/* 0x22 */
-        GET_DESCRIPTOR(USB_CFG_DESCR_PROPS_HID_REPORT, usbDescriptorHidReport)
-#endif
-    SWITCH_DEFAULT
-        if(USB_CFG_DESCR_PROPS_UNKNOWN & USB_PROP_IS_DYNAMIC){
-            len = usbFunctionDescriptor(rq);
-        }
-    SWITCH_END
-    usbMsgFlags = flags;
-    return len;
-}
-
-/* ------------------------------------------------------------------------- */
-
-/* usbDriverSetup() is similar to usbFunctionSetup(), but it's used for
- * standard requests instead of class and custom requests.
- */
-static inline usbMsgLen_t usbDriverSetup(usbRequest_t *rq)
-{
-uchar   len  = 0, *dataPtr = usbTxBuf + 9;  /* there are 2 bytes free space at the end of the buffer */
-uchar   value = rq->wValue.bytes[0];
-#if USB_CFG_IMPLEMENT_HALT
-uchar   index = rq->wIndex.bytes[0];
-#endif
-
-    dataPtr[0] = 0; /* default reply common to USBRQ_GET_STATUS and USBRQ_GET_INTERFACE */
-    SWITCH_START(rq->bRequest)
-    SWITCH_CASE(USBRQ_GET_STATUS)           /* 0 */
-        uchar recipient = rq->bmRequestType & USBRQ_RCPT_MASK;  /* assign arith ops to variables to enforce byte size */
-        if(USB_CFG_IS_SELF_POWERED && recipient == USBRQ_RCPT_DEVICE)
-            dataPtr[0] =  USB_CFG_IS_SELF_POWERED;
-#if USB_CFG_IMPLEMENT_HALT
-        if(recipient == USBRQ_RCPT_ENDPOINT && index == 0x81)   /* request status for endpoint 1 */
-            dataPtr[0] = usbTxLen1 == USBPID_STALL;
-#endif
-        dataPtr[1] = 0;
-        len = 2;
-#if USB_CFG_IMPLEMENT_HALT
-    SWITCH_CASE2(USBRQ_CLEAR_FEATURE, USBRQ_SET_FEATURE)    /* 1, 3 */
-        if(value == 0 && index == 0x81){    /* feature 0 == HALT for endpoint == 1 */
-            usbTxLen1 = rq->bRequest == USBRQ_CLEAR_FEATURE ? USBPID_NAK : USBPID_STALL;
-            usbResetDataToggling();
-        }
-#endif
-    SWITCH_CASE(USBRQ_SET_ADDRESS)          /* 5 */
-        usbNewDeviceAddr = value;
-        USB_SET_ADDRESS_HOOK();
-    SWITCH_CASE(USBRQ_GET_DESCRIPTOR)       /* 6 */
-        len = usbDriverDescriptor(rq);
-        goto skipMsgPtrAssignment;
-    SWITCH_CASE(USBRQ_GET_CONFIGURATION)    /* 8 */
-        dataPtr = &usbConfiguration;  /* send current configuration value */
-        len = 1;
-    SWITCH_CASE(USBRQ_SET_CONFIGURATION)    /* 9 */
-        usbConfiguration = value;
-        usbResetStall();
-    SWITCH_CASE(USBRQ_GET_INTERFACE)        /* 10 */
-        len = 1;
-#if USB_CFG_HAVE_INTRIN_ENDPOINT && !USB_CFG_SUPPRESS_INTR_CODE
-    SWITCH_CASE(USBRQ_SET_INTERFACE)        /* 11 */
-        usbResetDataToggling();
-        usbResetStall();
-#endif
-    SWITCH_DEFAULT                          /* 7=SET_DESCRIPTOR, 12=SYNC_FRAME */
-        /* Should we add an optional hook here? */
-    SWITCH_END
-    usbMsgPtr = dataPtr;
-skipMsgPtrAssignment:
-    return len;
-}
-
-/* ------------------------------------------------------------------------- */
-
-/* usbProcessRx() is called for every message received by the interrupt
- * routine. It distinguishes between SETUP and DATA packets and processes
- * them accordingly.
- */
-static inline void usbProcessRx(uchar *data, uchar len)
-{
-usbRequest_t    *rq = (void *)data;
-
-/* usbRxToken can be:
- * 0x2d 00101101 (USBPID_SETUP for setup data)
- * 0xe1 11100001 (USBPID_OUT: data phase of setup transfer)
- * 0...0x0f for OUT on endpoint X
- */
-    DBG2(0x10 + (usbRxToken & 0xf), data, len + 2); /* SETUP=1d, SETUP-DATA=11, OUTx=1x */
-    USB_RX_USER_HOOK(data, len)
-#if USB_CFG_IMPLEMENT_FN_WRITEOUT
-    if(usbRxToken < 0x10){  /* OUT to endpoint != 0: endpoint number in usbRxToken */
-        usbFunctionWriteOut(data, len);
-        return;
-    }
-#endif
-    if(usbRxToken == (uchar)USBPID_SETUP){
-        if(len != 8)    /* Setup size must be always 8 bytes. Ignore otherwise. */
-            return;
-        usbMsgLen_t replyLen;
-        usbTxBuf[0] = USBPID_DATA0;         /* initialize data toggling */
-        usbTxLen = USBPID_NAK;              /* abort pending transmit */
-        usbMsgFlags = 0;
-        uchar type = rq->bmRequestType & USBRQ_TYPE_MASK;
-        if(type != USBRQ_TYPE_STANDARD){    /* standard requests are handled by driver */
-            replyLen = usbFunctionSetup(data);
-        }else{
-            replyLen = usbDriverSetup(rq);
-        }
-#if USB_CFG_IMPLEMENT_FN_READ || USB_CFG_IMPLEMENT_FN_WRITE
-        if(replyLen == USB_NO_MSG){         /* use user-supplied read/write function */
-            /* do some conditioning on replyLen, but on IN transfers only */
-            if((rq->bmRequestType & USBRQ_DIR_MASK) != USBRQ_DIR_HOST_TO_DEVICE){
-                if(sizeof(replyLen) < sizeof(rq->wLength.word)){ /* help compiler with optimizing */
-                    replyLen = rq->wLength.bytes[0];
-                }else{
-                    replyLen = rq->wLength.word;
-                }
-            }
-            usbMsgFlags = USB_FLG_USE_USER_RW;
-        }else   /* The 'else' prevents that we limit a replyLen of USB_NO_MSG to the maximum transfer len. */
-#endif
-        if(sizeof(replyLen) < sizeof(rq->wLength.word)){ /* help compiler with optimizing */
-            if(!rq->wLength.bytes[1] && replyLen > rq->wLength.bytes[0])    /* limit length to max */
-                replyLen = rq->wLength.bytes[0];
-        }else{
-            if(replyLen > rq->wLength.word)     /* limit length to max */
-                replyLen = rq->wLength.word;
-        }
-        usbMsgLen = replyLen;
-    }else{  /* usbRxToken must be USBPID_OUT, which means data phase of setup (control-out) */
-#if USB_CFG_IMPLEMENT_FN_WRITE
-        if(usbMsgFlags & USB_FLG_USE_USER_RW){
-            uchar rval = usbFunctionWrite(data, len);
-            if(rval == 0xff){   /* an error occurred */
-                usbTxLen = USBPID_STALL;
-            }else if(rval != 0){    /* This was the final package */
-                usbMsgLen = 0;  /* answer with a zero-sized data packet */
-            }
-        }
-#endif
-    }
-}
-
-/* ------------------------------------------------------------------------- */
-
-/* This function is similar to usbFunctionRead(), but it's also called for
- * data handled automatically by the driver (e.g. descriptor reads).
- */
-static uchar usbDeviceRead(uchar *data, uchar len)
-{
-    if(len > 0){    /* don't bother app with 0 sized reads */
-#if USB_CFG_IMPLEMENT_FN_READ
-        if(usbMsgFlags & USB_FLG_USE_USER_RW){
-            len = usbFunctionRead(data, len);
-        }else
-#endif
-        {
-            uchar i = len, *r = usbMsgPtr;
-            if(usbMsgFlags & USB_FLG_MSGPTR_IS_ROM){    /* ROM data */
-                do{
-                    uchar c = USB_READ_FLASH(r);    /* assign to char size variable to enforce byte ops */
-                    *data++ = c;
-                    r++;
-                }while(--i);
-            }else{  /* RAM data */
-                do{
-                    *data++ = *r++;
-                }while(--i);
-            }
-            usbMsgPtr = r;
-        }
-    }
-    return len;
-}
-
-/* ------------------------------------------------------------------------- */
-
-/* usbBuildTxBlock() is called when we have data to transmit and the
- * interrupt routine's transmit buffer is empty.
- */
-static inline void usbBuildTxBlock(void)
-{
-usbMsgLen_t wantLen;
-uchar       len;
-
-    wantLen = usbMsgLen;
-    if(wantLen > 8)
-        wantLen = 8;
-    usbMsgLen -= wantLen;
-    usbTxBuf[0] ^= USBPID_DATA0 ^ USBPID_DATA1; /* DATA toggling */
-    len = usbDeviceRead(usbTxBuf + 1, wantLen);
-    if(len <= 8){           /* valid data packet */
-        usbCrc16Append(&usbTxBuf[1], len);
-        len += 4;           /* length including sync byte */
-        if(len < 12)        /* a partial package identifies end of message */
-            usbMsgLen = USB_NO_MSG;
-    }else{
-        len = USBPID_STALL;   /* stall the endpoint */
-        usbMsgLen = USB_NO_MSG;
-    }
-    usbTxLen = len;
-    DBG2(0x20, usbTxBuf, len-1);
-}
-
-/* ------------------------------------------------------------------------- */
-
-static inline void usbHandleResetHook(uchar notResetState)
-{
-#ifdef USB_RESET_HOOK
-static uchar    wasReset;
-uchar           isReset = !notResetState;
-
-    if(wasReset != isReset){
-        USB_RESET_HOOK(isReset);
-        wasReset = isReset;
-    }
-#endif
-}
-
-/* ------------------------------------------------------------------------- */
-
-USB_PUBLIC void usbPoll(void)
-{
-schar   len;
-uchar   i;
-
-    len = usbRxLen - 3;
-    if(len >= 0){
-/* We could check CRC16 here -- but ACK has already been sent anyway. If you
- * need data integrity checks with this driver, check the CRC in your app
- * code and report errors back to the host. Since the ACK was already sent,
- * retries must be handled on application level.
- * unsigned crc = usbCrc16(buffer + 1, usbRxLen - 3);
- */
-        usbProcessRx(usbRxBuf + USB_BUFSIZE + 1 - usbInputBufOffset, len);
-#if USB_CFG_HAVE_FLOWCONTROL
-        if(usbRxLen > 0)    /* only mark as available if not inactivated */
-            usbRxLen = 0;
-#else
-        usbRxLen = 0;       /* mark rx buffer as available */
-#endif
-    }
-    if(usbTxLen & 0x10){    /* transmit system idle */
-        if(usbMsgLen != USB_NO_MSG){    /* transmit data pending? */
-            usbBuildTxBlock();
-        }
-    }
-    for(i = 20; i > 0; i--){
-        uchar usbLineStatus = USBIN & USBMASK;
-        if(usbLineStatus != 0)  /* SE0 has ended */
-            goto isNotReset;
-    }
-    /* RESET condition, called multiple times during reset */
-    usbNewDeviceAddr = 0;
-    usbDeviceAddr = 0;
-    usbResetStall();
-    DBG1(0xff, 0, 0);
-isNotReset:
-    usbHandleResetHook(i);
-}
-
-/* ------------------------------------------------------------------------- */
-
-USB_PUBLIC void usbInit(void)
-{
-#if USB_INTR_CFG_SET != 0
-    USB_INTR_CFG |= USB_INTR_CFG_SET;
-#endif
-#if USB_INTR_CFG_CLR != 0
-    USB_INTR_CFG &= ~(USB_INTR_CFG_CLR);
-#endif
-    USB_INTR_ENABLE |= (1 << USB_INTR_ENABLE_BIT);
-    usbResetDataToggling();
-#if USB_CFG_HAVE_INTRIN_ENDPOINT && !USB_CFG_SUPPRESS_INTR_CODE
-    usbTxLen1 = USBPID_NAK;
-#if USB_CFG_HAVE_INTRIN_ENDPOINT3
-    usbTxLen3 = USBPID_NAK;
-#endif
-#endif
-}
-
-/* ------------------------------------------------------------------------- */