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USB-BDI
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USB-BDI
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00001 /* USB-BDI Used for programming and debugging a MPC555 over USB 00002 * 00003 * Copyright 2005 NTB Interstate University of Applied Sciences of Technology Buchs 00004 * 00005 * This program is free software: you can redistribute it and/or modify 00006 * it under the terms of the GNU General Public License as published by 00007 * the Free Software Foundation, either version 3 of the License, or 00008 * (at your option) any later version. 00009 * 00010 * This program is distributed in the hope that it will be useful, 00011 * but WITHOUT ANY WARRANTY; without even the implied warranty of 00012 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 00013 * GNU General Public License for more details. 00014 */ 00015 00024 #include "usbpdi_common.h" 00025 #include "usbpdi_main.h" 00026 #include "dispatch.h" 00027 #include "BDI_555.h" 00028 #include "uart.h" 00030 unsigned short uart0InBufferLen; 00032 unsigned short doNothing; 00033 00041 void initPacket(unsigned char mainType, unsigned char subType, unsigned short dataLength) 00042 { 00043 usbInBuffer[inBufIndex] = PACKET_HEADER; // header 00044 usbInBuffer[inBufIndex + 1] = mainType; // type field 00045 usbInBuffer[inBufIndex + 2] = subType; 00046 usbInBuffer[inBufIndex + 3] = MSB(dataLength); // length 00047 usbInBuffer[inBufIndex + 4] = LSB(dataLength); 00048 usbInBuffer[inBufIndex + PACKET_DATA_OFFSET + dataLength] = PACKET_END; // packet end 00049 } 00050 00056 void dispatch(unsigned short dataLength) 00057 { 00058 unsigned char error; 00059 unsigned short index; 00060 switch (usbOutBuffer[outBufIndex + 1]) { 00061 case MTYPE_BDI_555: 00062 switch (usbOutBuffer[outBufIndex + 2]) { 00063 case STYPE_BDI_555_35IN: 00064 BDI_555_35(); 00065 // send packet 00066 initPacket(MTYPE_BDI_555, STYPE_BDI_555_35OUT, BDI_DATA35_LENGTH); 00067 sendPacket(BDI_DATA35_LENGTH); 00068 break; 00069 case STYPE_BDI_555_10IN: 00070 BDI_555_10(); 00071 // send packet 00072 initPacket(MTYPE_BDI_555, STYPE_BDI_555_10OUT, BDI_DATA10_LENGTH); 00073 sendPacket(BDI_DATA10_LENGTH); 00074 break; 00075 case STYPE_BDI_555_HARD_RESET: 00076 BDI_555_hard_reset(); 00077 // send packet 00078 initPacket(MTYPE_BDI_555, STYPE_BDI_HARD_RESET_SUCCESS, 0); 00079 sendPacket(0); 00080 break; 00081 case STYPE_BDI_GET_FREEZE: 00082 BDI_get_freeze(); 00083 // send packet 00084 initPacket(MTYPE_BDI_555, STYPE_BDI_FREEZE_RESULT, 1); 00085 sendPacket(1); 00086 break; 00087 case STYPE_BDI_555_FD_DATA: 00088 error = FALSE; index = 0; 00089 // check if invalid length 00090 if (dataLength < BDI_DATA35_LENGTH) { 00091 // send packet 00092 initPacket(MTYPE_BDI_555, STYPE_BDI_ERROR_FD_LENGTH, 0); 00093 sendPacket(0); 00094 break; 00095 } 00096 while((index < dataLength) && !error) { 00097 // the inBuffer gets overwritten (if no error and not finished) 00098 BDI_555_35(); 00099 // check if we received an error condition (first two bits) 00100 00101 if ((usbInBuffer[inBufIndex + PACKET_DATA_OFFSET] & BDI_35STATUS_MASK) != BDI_35STATUS_NULL) { 00102 error = TRUE; 00103 } 00104 index += BDI_DATA35_LENGTH; 00105 outBufIndex += BDI_DATA35_LENGTH; 00106 } 00107 // send success or error 00108 if (error) { 00109 initPacket(MTYPE_BDI_555, STYPE_BDI_ERROR_FD_GENERAL, BDI_DATA35_LENGTH); 00110 sendPacket(BDI_DATA35_LENGTH); 00111 } else { 00112 initPacket(MTYPE_BDI_555, STYPE_BDI_SUCCESS_FD, 0); 00113 sendPacket(0); 00114 } 00115 break; 00116 default: // ERROR: Unknown STYPE_BDI 00117 initPacket(MTYPE_BDI_555, STYPE_BDI_UNKNOWN_STYPE, 0); 00118 sendPacket(0); 00119 break; 00120 } 00121 break; 00122 case MTYPE_UART: 00123 //this part isn't handled anymore but shoudn't send an error 00124 doNothing = 0; 00125 default: // ERROR: Unknown MTYPE 00126 initPacket(MTYPE_ERROR, STYPE_ERROR_UNKNOWN_MTYPE, 0); 00127 sendPacket(0); 00128 break; 00129 } 00130 }
1.7.6.1
