LUFA/Drivers/USB/HighLevel/EndpointStream.c

   1 /*
   2              LUFA Library
   3      Copyright (C) Dean Camera, 2011.
   4
   5   dean [at] fourwalledcubicle [dot] com
   6            www.lufa-lib.org
   7 */
   8
   9 /*
  10   Copyright 2011  Dean Camera (dean [at] fourwalledcubicle [dot] com)
  11
  12   Permission to use, copy, modify, distribute, and sell this
  13   software and its documentation for any purpose is hereby granted
  14   without fee, provided that the above copyright notice appear in
  15   all copies and that both that the copyright notice and this
  16   permission notice and warranty disclaimer appear in supporting
  17   documentation, and that the name of the author not be used in
  18   advertising or publicity pertaining to distribution of the
  19   software without specific, written prior permission.
  20
  21   The author disclaim all warranties with regard to this
  22   software, including all implied warranties of merchantability
  23   and fitness.  In no event shall the author be liable for any
  24   special, indirect or consequential damages or any damages
  25   whatsoever resulting from loss of use, data or profits, whether
  26   in an action of contract, negligence or other tortious action,
  27   arising out of or in connection with the use or performance of
  28   this software.
  29 */
  30
  31 #define  __INCLUDE_FROM_USB_DRIVER
  32 #include "USBMode.h"
  33
  34 #if defined(USB_CAN_BE_DEVICE)
  35
  36 #include "EndpointStream.h"
  37
  38 #if !defined(CONTROL_ONLY_DEVICE)
  39 uint8_t Endpoint_Discard_Stream(uint16_t Length,
  40                                 uint16_t* const BytesProcessed)
  41 {
  42         uint8_t  ErrorCode;
  43         uint16_t BytesInTransfer = 0;
  44
  45         if ((ErrorCode = Endpoint_WaitUntilReady()))
  46           return ErrorCode;
  47
  48         if (BytesProcessed != NULL)
  49           Length -= *BytesProcessed;
  50
  51         while (Length)
  52         {
  53                 if (!(Endpoint_IsReadWriteAllowed()))
  54                 {
  55                         Endpoint_ClearOUT();
  56
  57                         if (BytesProcessed != NULL)
  58                         {
  59                                 *BytesProcessed += BytesInTransfer;
  60                                 return ENDPOINT_RWSTREAM_IncompleteTransfer;
  61                         }
  62
  63                         if ((ErrorCode = Endpoint_WaitUntilReady()))
  64                           return ErrorCode;
  65                 }
  66                 else
  67                 {
  68                         Endpoint_Discard_Byte();
  69
  70                         Length--;
  71                         BytesInTransfer++;
  72                 }
  73         }
  74
  75         return ENDPOINT_RWSTREAM_NoError;
  76 }
  77
  78 uint8_t Endpoint_Null_Stream(uint16_t Length,
  79                              uint16_t* const BytesProcessed)
  80 {
  81         uint8_t  ErrorCode;
  82         uint16_t BytesInTransfer = 0;
  83
  84         if ((ErrorCode = Endpoint_WaitUntilReady()))
  85           return ErrorCode;
  86
  87         if (BytesProcessed != NULL)
  88           Length -= *BytesProcessed;
  89
  90         while (Length)
  91         {
  92                 if (!(Endpoint_IsReadWriteAllowed()))
  93                 {
  94                         Endpoint_ClearIN();
  95
  96                         if (BytesProcessed != NULL)
  97                         {
  98                                 *BytesProcessed += BytesInTransfer;
  99                                 return ENDPOINT_RWSTREAM_IncompleteTransfer;
 100                         }
 101
 102                         if ((ErrorCode = Endpoint_WaitUntilReady()))
 103                           return ErrorCode;
 104                 }
 105                 else
 106                 {
 107                         Endpoint_Write_Byte(0);
 108
 109                         Length--;
 110                         BytesInTransfer++;
 111                 }
 112         }
 113
 114         return ENDPOINT_RWSTREAM_NoError;
 115 }
 116
 117 #define  TEMPLATE_FUNC_NAME                        Endpoint_Write_Stream_LE
 118 #define  TEMPLATE_BUFFER_TYPE                      const void*
 119 #define  TEMPLATE_CLEAR_ENDPOINT()                 Endpoint_ClearIN()
 120 #define  TEMPLATE_BUFFER_OFFSET(Length)            0
 121 #define  TEMPLATE_BUFFER_MOVE(BufferPtr, Amount)   BufferPtr += Amount
 122 #define  TEMPLATE_TRANSFER_BYTE(BufferPtr)         Endpoint_Write_Byte(*BufferPtr)
 123 #include "Template/Template_Endpoint_RW.c"
 124
 125 #define  TEMPLATE_FUNC_NAME                        Endpoint_Write_PStream_LE
 126 #define  TEMPLATE_BUFFER_TYPE                      const void*
 127 #define  TEMPLATE_CLEAR_ENDPOINT()                 Endpoint_ClearIN()
 128 #define  TEMPLATE_BUFFER_OFFSET(Length)            0
 129 #define  TEMPLATE_BUFFER_MOVE(BufferPtr, Amount)   BufferPtr += Amount
 130 #define  TEMPLATE_TRANSFER_BYTE(BufferPtr)         Endpoint_Write_Byte(pgm_read_byte(BufferPtr))
 131 #include "Template/Template_Endpoint_RW.c"
 132
 133 #define  TEMPLATE_FUNC_NAME                        Endpoint_Write_EStream_LE
 134 #define  TEMPLATE_BUFFER_TYPE                      const void*
 135 #define  TEMPLATE_CLEAR_ENDPOINT()                 Endpoint_ClearIN()
 136 #define  TEMPLATE_BUFFER_OFFSET(Length)            0
 137 #define  TEMPLATE_BUFFER_MOVE(BufferPtr, Amount)   BufferPtr += Amount
 138 #define  TEMPLATE_TRANSFER_BYTE(BufferPtr)         Endpoint_Write_Byte(eeprom_read_byte(BufferPtr))
 139 #include "Template/Template_Endpoint_RW.c"
 140
 141 #define  TEMPLATE_FUNC_NAME                        Endpoint_Write_Stream_BE
 142 #define  TEMPLATE_BUFFER_TYPE                      const void*
 143 #define  TEMPLATE_CLEAR_ENDPOINT()                 Endpoint_ClearIN()
 144 #define  TEMPLATE_BUFFER_OFFSET(Length)            (Length - 1)
 145 #define  TEMPLATE_BUFFER_MOVE(BufferPtr, Amount)   BufferPtr -= Amount
 146 #define  TEMPLATE_TRANSFER_BYTE(BufferPtr)         Endpoint_Write_Byte(*BufferPtr)
 147 #include "Template/Template_Endpoint_RW.c"
 148
 149 #define  TEMPLATE_FUNC_NAME                        Endpoint_Write_EStream_BE
 150 #define  TEMPLATE_BUFFER_TYPE                      const void*
 151 #define  TEMPLATE_CLEAR_ENDPOINT()                 Endpoint_ClearIN()
 152 #define  TEMPLATE_BUFFER_OFFSET(Length)            (Length - 1)
 153 #define  TEMPLATE_BUFFER_MOVE(BufferPtr, Amount)   BufferPtr -= Amount
 154 #define  TEMPLATE_TRANSFER_BYTE(BufferPtr)         Endpoint_Write_Byte(eeprom_read_byte(BufferPtr))
 155 #include "Template/Template_Endpoint_RW.c"
 156
 157 #define  TEMPLATE_FUNC_NAME                        Endpoint_Write_PStream_BE
 158 #define  TEMPLATE_BUFFER_TYPE                      const void*
 159 #define  TEMPLATE_CLEAR_ENDPOINT()                 Endpoint_ClearIN()
 160 #define  TEMPLATE_BUFFER_OFFSET(Length)            (Length - 1)
 161 #define  TEMPLATE_BUFFER_MOVE(BufferPtr, Amount)   BufferPtr -= Amount
 162 #define  TEMPLATE_TRANSFER_BYTE(BufferPtr)         Endpoint_Write_Byte(pgm_read_byte(BufferPtr))
 163 #include "Template/Template_Endpoint_RW.c"
 164
 165 #define  TEMPLATE_FUNC_NAME                        Endpoint_Read_Stream_LE
 166 #define  TEMPLATE_BUFFER_TYPE                      void*
 167 #define  TEMPLATE_CLEAR_ENDPOINT()                 Endpoint_ClearOUT()
 168 #define  TEMPLATE_BUFFER_OFFSET(Length)            0
 169 #define  TEMPLATE_BUFFER_MOVE(BufferPtr, Amount)   BufferPtr += Amount
 170 #define  TEMPLATE_TRANSFER_BYTE(BufferPtr)         *BufferPtr = Endpoint_Read_Byte()
 171 #include "Template/Template_Endpoint_RW.c"
 172
 173 #define  TEMPLATE_FUNC_NAME                        Endpoint_Read_EStream_LE
 174 #define  TEMPLATE_BUFFER_TYPE                      void*
 175 #define  TEMPLATE_CLEAR_ENDPOINT()                 Endpoint_ClearOUT()
 176 #define  TEMPLATE_BUFFER_OFFSET(Length)            0
 177 #define  TEMPLATE_BUFFER_MOVE(BufferPtr, Amount)   BufferPtr += Amount
 178 #define  TEMPLATE_TRANSFER_BYTE(BufferPtr)         eeprom_update_byte(BufferPtr, Endpoint_Read_Byte())
 179 #include "Template/Template_Endpoint_RW.c"
 180
 181 #define  TEMPLATE_FUNC_NAME                        Endpoint_Read_Stream_BE
 182 #define  TEMPLATE_BUFFER_TYPE                      void*
 183 #define  TEMPLATE_CLEAR_ENDPOINT()                 Endpoint_ClearOUT()
 184 #define  TEMPLATE_BUFFER_OFFSET(Length)            (Length - 1)
 185 #define  TEMPLATE_BUFFER_MOVE(BufferPtr, Amount)   BufferPtr -= Amount
 186 #define  TEMPLATE_TRANSFER_BYTE(BufferPtr)         *BufferPtr = Endpoint_Read_Byte()
 187 #include "Template/Template_Endpoint_RW.c"
 188
 189 #define  TEMPLATE_FUNC_NAME                        Endpoint_Read_EStream_BE
 190 #define  TEMPLATE_BUFFER_TYPE                      void*
 191 #define  TEMPLATE_CLEAR_ENDPOINT()                 Endpoint_ClearOUT()
 192 #define  TEMPLATE_BUFFER_OFFSET(Length)            (Length - 1)
 193 #define  TEMPLATE_BUFFER_MOVE(BufferPtr, Amount)   BufferPtr -= Amount
 194 #define  TEMPLATE_TRANSFER_BYTE(BufferPtr)         eeprom_update_byte(BufferPtr, Endpoint_Read_Byte())
 195 #include "Template/Template_Endpoint_RW.c"
 196
 197 #endif
 198
 199 #define  TEMPLATE_FUNC_NAME                        Endpoint_Write_Control_Stream_LE
 200 #define  TEMPLATE_BUFFER_OFFSET(Length)            0
 201 #define  TEMPLATE_BUFFER_MOVE(BufferPtr, Amount)   BufferPtr += Amount
 202 #define  TEMPLATE_TRANSFER_BYTE(BufferPtr)         Endpoint_Write_Byte(*BufferPtr)
 203 #include "Template/Template_Endpoint_Control_W.c"
 204
 205 #define  TEMPLATE_FUNC_NAME                        Endpoint_Write_Control_PStream_LE
 206 #define  TEMPLATE_BUFFER_OFFSET(Length)            0
 207 #define  TEMPLATE_BUFFER_MOVE(BufferPtr, Amount)   BufferPtr += Amount
 208 #define  TEMPLATE_TRANSFER_BYTE(BufferPtr)         Endpoint_Write_Byte(pgm_read_byte(BufferPtr))
 209 #include "Template/Template_Endpoint_Control_W.c"
 210
 211 #define  TEMPLATE_FUNC_NAME                        Endpoint_Write_Control_EStream_LE
 212 #define  TEMPLATE_BUFFER_OFFSET(Length)            0
 213 #define  TEMPLATE_BUFFER_MOVE(BufferPtr, Amount)   BufferPtr += Amount
 214 #define  TEMPLATE_TRANSFER_BYTE(BufferPtr)         Endpoint_Write_Byte(eeprom_read_byte(BufferPtr))
 215 #include "Template/Template_Endpoint_Control_W.c"
 216
 217 #define  TEMPLATE_FUNC_NAME                        Endpoint_Write_Control_Stream_BE
 218 #define  TEMPLATE_BUFFER_OFFSET(Length)            (Length - 1)
 219 #define  TEMPLATE_BUFFER_MOVE(BufferPtr, Amount)   BufferPtr -= Amount
 220 #define  TEMPLATE_TRANSFER_BYTE(BufferPtr)         Endpoint_Write_Byte(*BufferPtr)
 221 #include "Template/Template_Endpoint_Control_W.c"
 222
 223 #define  TEMPLATE_FUNC_NAME                        Endpoint_Write_Control_PStream_BE
 224 #define  TEMPLATE_BUFFER_OFFSET(Length)            (Length - 1)
 225 #define  TEMPLATE_BUFFER_MOVE(BufferPtr, Amount)   BufferPtr -= Amount
 226 #define  TEMPLATE_TRANSFER_BYTE(BufferPtr)         Endpoint_Write_Byte(pgm_read_byte(BufferPtr))
 227 #include "Template/Template_Endpoint_Control_W.c"
 228
 229 #define  TEMPLATE_FUNC_NAME                        Endpoint_Write_Control_EStream_BE
 230 #define  TEMPLATE_BUFFER_OFFSET(Length)            (Length - 1)
 231 #define  TEMPLATE_BUFFER_MOVE(BufferPtr, Amount)   BufferPtr -= Amount
 232 #define  TEMPLATE_TRANSFER_BYTE(BufferPtr)         Endpoint_Write_Byte(eeprom_read_byte(BufferPtr))
 233 #include "Template/Template_Endpoint_Control_W.c"
 234
 235 #define  TEMPLATE_FUNC_NAME                        Endpoint_Read_Control_Stream_LE
 236 #define  TEMPLATE_BUFFER_OFFSET(Length)            0
 237 #define  TEMPLATE_BUFFER_MOVE(BufferPtr, Amount)   BufferPtr += Amount
 238 #define  TEMPLATE_TRANSFER_BYTE(BufferPtr)         *BufferPtr = Endpoint_Read_Byte()
 239 #include "Template/Template_Endpoint_Control_R.c"
 240
 241 #define  TEMPLATE_FUNC_NAME                        Endpoint_Read_Control_EStream_LE
 242 #define  TEMPLATE_BUFFER_OFFSET(Length)            0
 243 #define  TEMPLATE_BUFFER_MOVE(BufferPtr, Amount)   BufferPtr += Amount
 244 #define  TEMPLATE_TRANSFER_BYTE(BufferPtr)         eeprom_update_byte(BufferPtr, Endpoint_Read_Byte())
 245 #include "Template/Template_Endpoint_Control_R.c"
 246
 247 #define  TEMPLATE_FUNC_NAME                        Endpoint_Read_Control_Stream_BE
 248 #define  TEMPLATE_BUFFER_OFFSET(Length)            (Length - 1)
 249 #define  TEMPLATE_BUFFER_MOVE(BufferPtr, Amount)   BufferPtr -= Amount
 250 #define  TEMPLATE_TRANSFER_BYTE(BufferPtr)         *BufferPtr = Endpoint_Read_Byte()
 251 #include "Template/Template_Endpoint_Control_R.c"
 252
 253 #define  TEMPLATE_FUNC_NAME                        Endpoint_Read_Control_EStream_BE
 254 #define  TEMPLATE_BUFFER_OFFSET(Length)            (Length - 1)
 255 #define  TEMPLATE_BUFFER_MOVE(BufferPtr, Amount)   BufferPtr -= Amount
 256 #define  TEMPLATE_TRANSFER_BYTE(BufferPtr)         eeprom_update_byte(BufferPtr, Endpoint_Read_Byte())
 257 #include "Template/Template_Endpoint_Control_R.c"
 258
 259 #endif