Minor fixups to the documentation and preprocessor tokens.

[pub/USBasp.git] / Demos / Device / ClassDriver / MassStorage / Lib / DataflashManager.c

diff --git a/Demos/Device/ClassDriver/MassStorage/Lib/DataflashManager.c b/Demos/Device/ClassDriver/MassStorage/Lib/DataflashManager.c
index 1c584e7..90ec930 100644 (file)
--- a/Demos/Device/ClassDriver/MassStorage/Lib/DataflashManager.c
+++ b/Demos/Device/ClassDriver/MassStorage/Lib/DataflashManager.c
@@ -1,21 +1,21 @@
 /*\r
              LUFA Library\r
 /*\r
              LUFA Library\r

-     Copyright (C) Dean Camera, 2009.\r
+     Copyright (C) Dean Camera, 2010.\r

               \r
   dean [at] fourwalledcubicle [dot] com\r
       www.fourwalledcubicle.com\r
 */\r
 \r
 /*\r
               \r
   dean [at] fourwalledcubicle [dot] com\r
       www.fourwalledcubicle.com\r
 */\r
 \r
 /*\r

-  Copyright 2009  Dean Camera (dean [at] fourwalledcubicle [dot] com)\r
-\r
-  Permission to use, copy, modify, and distribute this software\r
-  and its documentation for any purpose and without fee is hereby\r
-  granted, provided that the above copyright notice appear in all\r
-  copies and that both that the copyright notice and this\r
-  permission notice and warranty disclaimer appear in supporting\r
-  documentation, and that the name of the author not be used in\r
-  advertising or publicity pertaining to distribution of the\r
+  Copyright 2010  Dean Camera (dean [at] fourwalledcubicle [dot] com)\r
+\r
+  Permission to use, copy, modify, distribute, and sell this \r
+  software and its documentation for any purpose is hereby granted\r
+  without fee, provided that the above copyright notice appear in \r
+  all copies and that both that the copyright notice and this\r
+  permission notice and warranty disclaimer appear in supporting \r
+  documentation, and that the name of the author not be used in \r
+  advertising or publicity pertaining to distribution of the \r

   software without specific, written prior permission.\r
 \r
   The author disclaim all warranties with regard to this\r
   software without specific, written prior permission.\r
 \r
   The author disclaim all warranties with regard to this\r


@@ -43,7 +43,7 @@
  *  the pre-selected data OUT endpoint. This routine reads in OS sized blocks from the endpoint and writes\r
  *  them to the dataflash in Dataflash page sized blocks.\r
  *\r
  *  the pre-selected data OUT endpoint. This routine reads in OS sized blocks from the endpoint and writes\r
  *  them to the dataflash in Dataflash page sized blocks.\r
  *\r

- *  \param[in] MSInterfaceInfo  Pointer to a structure containing a Mass Storage Class configuration and state.\r
+ *  \param[in] MSInterfaceInfo  Pointer to a structure containing a Mass Storage Class configuration and state\r

  *  \param[in] BlockAddress  Data block starting address for the write sequence\r
  *  \param[in] TotalBlocks   Number of blocks of data to write\r
  */\r
  *  \param[in] BlockAddress  Data block starting address for the write sequence\r
  *  \param[in] TotalBlocks   Number of blocks of data to write\r
  */\r


@@ -69,7 +69,8 @@ void DataflashManager_WriteBlocks(USB_ClassInfo_MS_Device_t* MSInterfaceInfo, co
        Dataflash_SendAddressBytes(0, CurrDFPageByte);\r
 \r
        /* Wait until endpoint is ready before continuing */\r
        Dataflash_SendAddressBytes(0, CurrDFPageByte);\r
 \r
        /* Wait until endpoint is ready before continuing */\r

-       while (!(Endpoint_IsReadWriteAllowed()));\r
+       if (Endpoint_WaitUntilReady())\r
+         return;\r

 \r
        while (TotalBlocks)\r
        {\r
 \r
        while (TotalBlocks)\r
        {\r


@@ -85,7 +86,8 @@ void DataflashManager_WriteBlocks(USB_ClassInfo_MS_Device_t* MSInterfaceInfo, co
                                Endpoint_ClearOUT();\r
                                \r
                                /* Wait until the host has sent another packet */\r
                                Endpoint_ClearOUT();\r
                                \r
                                /* Wait until the host has sent another packet */\r

-                               while (!(Endpoint_IsReadWriteAllowed()));\r
+                               if (Endpoint_WaitUntilReady())\r
+                                 return;\r

                        }\r
 \r
                        /* Check if end of dataflash page reached */\r
                        }\r
 \r
                        /* Check if end of dataflash page reached */\r


@@ -175,7 +177,7 @@ void DataflashManager_WriteBlocks(USB_ClassInfo_MS_Device_t* MSInterfaceInfo, co
  *  the pre-selected data IN endpoint. This routine reads in Dataflash page sized blocks from the Dataflash\r
  *  and writes them in OS sized blocks to the endpoint.\r
  *\r
  *  the pre-selected data IN endpoint. This routine reads in Dataflash page sized blocks from the Dataflash\r
  *  and writes them in OS sized blocks to the endpoint.\r
  *\r

- *  \param[in] MSInterfaceInfo  Pointer to a structure containing a Mass Storage Class configuration and state.\r
+ *  \param[in] MSInterfaceInfo  Pointer to a structure containing a Mass Storage Class configuration and state\r

  *  \param[in] BlockAddress  Data block starting address for the read sequence\r
  *  \param[in] TotalBlocks   Number of blocks of data to read\r
  */\r
  *  \param[in] BlockAddress  Data block starting address for the read sequence\r
  *  \param[in] TotalBlocks   Number of blocks of data to read\r
  */\r


@@ -197,7 +199,8 @@ void DataflashManager_ReadBlocks(USB_ClassInfo_MS_Device_t* MSInterfaceInfo, con
        Dataflash_SendByte(0x00);\r
        \r
        /* Wait until endpoint is ready before continuing */\r
        Dataflash_SendByte(0x00);\r
        \r
        /* Wait until endpoint is ready before continuing */\r

-       while (!(Endpoint_IsReadWriteAllowed()));\r
+       if (Endpoint_WaitUntilReady())\r
+         return;\r

        \r
        while (TotalBlocks)\r
        {\r
        \r
        while (TotalBlocks)\r
        {\r


@@ -213,7 +216,8 @@ void DataflashManager_ReadBlocks(USB_ClassInfo_MS_Device_t* MSInterfaceInfo, con
                                Endpoint_ClearIN();\r
                                \r
                                /* Wait until the endpoint is ready for more data */\r
                                Endpoint_ClearIN();\r
                                \r
                                /* Wait until the endpoint is ready for more data */\r

-                               while (!(Endpoint_IsReadWriteAllowed()));\r
+                               if (Endpoint_WaitUntilReady())\r
+                                 return;\r

                        }\r
                        \r
                        /* Check if end of dataflash page reached */\r
                        }\r
                        \r
                        /* Check if end of dataflash page reached */\r


@@ -486,3 +490,36 @@ void DataflashManager_ResetDataflashProtections(void)
        /* Deselect current dataflash chip */\r
        Dataflash_DeselectChip();\r
 }\r
        /* Deselect current dataflash chip */\r
        Dataflash_DeselectChip();\r
 }\r

+\r
+/** Performs a simple test on the attached Dataflash IC(s) to ensure that they are working.\r
+ *\r
+ *  \return Boolean true if all media chips are working, false otherwise\r
+ */\r
+bool DataflashManager_CheckDataflashOperation(void)\r
+{\r
+       uint8_t ReturnByte;\r
+\r
+       /* Test first Dataflash IC is present and responding to commands */\r
+       Dataflash_SelectChip(DATAFLASH_CHIP1);\r
+       Dataflash_SendByte(DF_CMD_READMANUFACTURERDEVICEINFO);\r
+       ReturnByte = Dataflash_ReceiveByte();\r
+       Dataflash_DeselectChip();\r
+\r
+       /* If returned data is invalid, fail the command */\r
+       if (ReturnByte != DF_MANUFACTURER_ATMEL)\r
+         return false;\r
+\r
+       #if (DATAFLASH_TOTALCHIPS == 2)\r
+       /* Test second Dataflash IC is present and responding to commands */\r
+       Dataflash_SelectChip(DATAFLASH_CHIP2);\r
+       Dataflash_SendByte(DF_CMD_READMANUFACTURERDEVICEINFO);\r
+       ReturnByte = Dataflash_ReceiveByte();\r
+       Dataflash_DeselectChip();\r
+\r
+       /* If returned data is invalid, fail the command */\r
+       if (ReturnByte != DF_MANUFACTURER_ATMEL)\r
+         return false;\r
+       #endif\r
+       \r
+       return true;\r
+}\r