6a4e4c87c2
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@4083 a1c6a512-1295-4272-9138-f99709370657
738 lines
18 KiB
C
738 lines
18 KiB
C
// client.cpp : functions for monitor download and communication.
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//
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#include <stdio.h>
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#include <stdlib.h>
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#include "scalar_types.h" // (U)INT8/16/32
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#include "Uart.h" // platform abstraction for UART
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#include "minimon.h" // protocol of my little monitor
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// do the baudrate configuration for the Player
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int ConfigFirstlevelPlayer (tUartHandle serial_handle)
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{
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UINT32 result_nbr;
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if(!UartConfig(serial_handle, 4800, eMARKPARITY, eTWOSTOPBITS, 8))
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{
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UINT32 dwErr = GET_LAST_ERR();
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printf("Error %d setting up COM params for baudrate byte\n", dwErr);
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exit(1);
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}
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// this will read as 0x19 when viewed with 2300 baud like the player does
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result_nbr = UartWrite(serial_handle, (UINT8*)"\x86\xC0", 2);
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if (result_nbr != 2)
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{
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UINT32 dwErr = GET_LAST_ERR();
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printf("Error %d setting up COM params for baudrate byte\n", dwErr);
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}
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SLEEP(100); // wait for the chars to be sent, is there a better way?
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// the read 0x19 means 14423 baud with 12 MHz
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if(!UartConfig(serial_handle, 14400, eNOPARITY, eONESTOPBIT, 8))
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{
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printf("Error setting up COM params for 1st level loader\n");
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exit(1);
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}
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return 0;
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}
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// do the baudrate configuration for the Recoder/FM
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int ConfigFirstlevelRecorder (tUartHandle serial_handle)
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{
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UINT32 result_nbr;
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if(!UartConfig(serial_handle, 4800, eNOPARITY, eTWOSTOPBITS, 8))
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{
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UINT32 dwErr = GET_LAST_ERR();
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printf("Error %d setting up COM params for baudrate byte\n", dwErr);
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exit(1);
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}
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// this will read as 0x08 when viewed with 2120 baud like the recorder does
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result_nbr = UartWrite(serial_handle, (UINT8*)"\x00\x00", 2);
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if(result_nbr != 2)
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{
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printf("Error transmitting baudrate byte\n");
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exit(1);
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}
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SLEEP(100); // wait for the chars to be sent, is there a better way?
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// the read 0x08 means 38400 baud with 11.0592 MHz
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if(!UartConfig(serial_handle, 38400, eNOPARITY, eONESTOPBIT, 8))
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{
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UINT32 dwErr = GET_LAST_ERR();
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printf("Error %d setting up COM params for 1st level loader\n", dwErr);
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exit(1);
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}
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return 0;
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}
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// transfer a byte for the monitor download, with or without acknowledge
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int DownloadByte(tUartHandle serial_handle, unsigned char byte, bool bAck)
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{
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unsigned char received;
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bool bRecorder = true; // false for player
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while (1)
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{
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UartWrite(serial_handle, &byte, 1);
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if (bAck)
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{
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UartRead(serial_handle, &received, 1);
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if (received == byte)
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{
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UartWrite(serial_handle, (UINT8*)"\x01", 1); // ack success
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break; // exit the loop
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}
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else
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{
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printf("Error transmitting monitor byte 0x%02X, got 0x%0X\n", byte, received);
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UartWrite(serial_handle, (UINT8*)"\x00", 1); // ack fail, try again
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}
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}
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else
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break; // no loop
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}
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return 1;
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}
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// download our little monitor, the box must have been just freshly switched on for this to work
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int DownloadMonitor(tUartHandle serial_handle, bool bRecorder, char* szFilename)
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{
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FILE* pFile;
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size_t filesize;
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UINT8 byte;
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unsigned i;
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// hard-coded parameters
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bool bAck = true; // configure if acknowledged download (without useful for remote pin boot)
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UINT32 TargetLoad = 0x0FFFF000; // target load address
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pFile = fopen(szFilename, "rb");
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if (pFile == NULL)
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{
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printf("\nMonitor file %s not found, exiting\n", szFilename);
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exit(1);
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}
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// determine file size
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fseek(pFile, 0, SEEK_END);
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filesize = ftell(pFile);
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fseek(pFile, 0, SEEK_SET);
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// This is _really_ tricky! The box expects a BRR value in a nonstandard baudrate,
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// which a PC can't generate. I'm using a higher one with some wild settings
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// to generate a pulse series that:
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// 1) looks like a stable byte when sampled with the nonstandard baudrate
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// 2) gives a BRR value to the box which results in a baudrate the PC can also use
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if (bRecorder)
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{
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ConfigFirstlevelRecorder(serial_handle);
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}
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else
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{
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ConfigFirstlevelPlayer(serial_handle);
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}
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UartWrite(serial_handle, bAck ? (UINT8*)"\x01" : (UINT8*)"\x00", 1); // ACK mode
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// transmit the size, little endian
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DownloadByte(serial_handle, (UINT8)( filesize & 0xFF), bAck);
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DownloadByte(serial_handle, (UINT8)((filesize>>8) & 0xFF), bAck);
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DownloadByte(serial_handle, (UINT8)((filesize>>16) & 0xFF), bAck);
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DownloadByte(serial_handle, (UINT8)((filesize>>24) & 0xFF), bAck);
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// transmit the load address, little endian
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DownloadByte(serial_handle, (UINT8)( TargetLoad & 0xFF), bAck);
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DownloadByte(serial_handle, (UINT8)((TargetLoad>>8) & 0xFF), bAck);
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DownloadByte(serial_handle, (UINT8)((TargetLoad>>16) & 0xFF), bAck);
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DownloadByte(serial_handle, (UINT8)((TargetLoad>>24) & 0xFF), bAck);
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// transmit the command byte
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DownloadByte(serial_handle, 0xFF, bAck); // 0xFF means execute the transferred image
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// transmit the image
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for (i=0; i<filesize; i++)
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{
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fread(&byte, 1, 1, pFile);
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DownloadByte(serial_handle, byte, bAck);
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}
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fclose (pFile);
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// now the image should have been started, red LED off
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return 0;
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}
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// wait for a fixed string to be received (no foolproof algorithm,
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// may overlook if the searched string contains repeatitions)
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int WaitForString(tUartHandle serial_handle, char* pszWait)
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{
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int i = 0;
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unsigned char received;
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while(pszWait[i] != '\0')
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{
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UartRead(serial_handle, &received, 1);
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printf("%c", received); // debug
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if (received == pszWait[i])
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i++; // continue
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else
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i=0; // mismatch, start over
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}
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return 0;
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}
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// send a sting and check the echo
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int SendWithEcho(tUartHandle serial_handle, char* pszSend)
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{
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int i = 0;
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unsigned char received;
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while(pszSend[i] != '\0')
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{
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UartWrite(serial_handle, (unsigned char*)(pszSend + i), 1); // send char
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do
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{
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UartRead(serial_handle, &received, 1); // receive echo
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printf("%c", received); // debug
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}
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while (received != pszSend[i]); // should normally be equal
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i++; // next char
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}
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return 0;
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}
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// rarely used variant: download our monitor using the built-in Archos monitor
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int DownloadArchosMonitor(tUartHandle serial_handle, char* szFilename)
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{
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FILE* pFile;
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size_t filesize;
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UINT8 byte;
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UINT16 checksum = 0;
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unsigned i;
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// the onboard monitor uses 115200 baud
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if(!UartConfig(serial_handle, 115200, eNOPARITY, eONESTOPBIT, 8))
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{
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UINT32 dwErr = GET_LAST_ERR();
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printf("Error %d setting up COM params for baudrate %d\n", dwErr, 115200);
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exit(1);
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}
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// wait for receiving "#SERIAL#"
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WaitForString(serial_handle, "#SERIAL#");
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// send magic "SRL" command to get interactive mode
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SendWithEcho(serial_handle, "SRL\r");
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// wait for menu completion: "ROOT>" at the end
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WaitForString(serial_handle, "ROOT>");
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// send upload command "UP"
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SendWithEcho(serial_handle, "UP\r");
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pFile = fopen(szFilename, "rb");
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if (pFile == NULL)
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{
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printf("\nMonitor file %s not found, exiting\n", szFilename);
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exit(1);
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}
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// determine file size
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fseek(pFile, 0, SEEK_END);
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filesize = ftell(pFile);
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fseek(pFile, 0, SEEK_SET);
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// calculate checksum
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for (i=0; i<filesize; i++)
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{
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fread(&byte, 1, 1, pFile);
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checksum += byte;
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}
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fseek(pFile, 0, SEEK_SET);
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// send header
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// size as 32 bit little endian
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byte = (UINT8)( filesize & 0xFF);
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UartWrite(serial_handle, &byte, 1);
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byte = (UINT8)((filesize>>8) & 0xFF);
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UartWrite(serial_handle, &byte, 1);
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byte = (UINT8)((filesize>>16) & 0xFF);
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UartWrite(serial_handle, &byte, 1);
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byte = (UINT8)((filesize>>24) & 0xFF);
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UartWrite(serial_handle, &byte, 1);
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// checksum as 16 bit little endian
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byte = (UINT8)( checksum & 0xFF);
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UartWrite(serial_handle, &byte, 1);
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byte = (UINT8)((checksum>>8) & 0xFF);
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UartWrite(serial_handle, &byte, 1);
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UartWrite(serial_handle, (unsigned char*)"\x00", 1); // kind (3 means flash)
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UartWrite(serial_handle, (unsigned char*)"\x00", 1); // ignored byte
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// wait for monitor to accept data
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WaitForString(serial_handle, "#OKCTRL#");
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// transmit the image
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for (i=0; i<filesize; i++)
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{
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fread(&byte, 1, 1, pFile);
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UartWrite(serial_handle, &byte, 1); // payload
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}
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fclose (pFile);
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UartWrite(serial_handle, (unsigned char*)"\x00", 1); // ignored byte
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// wait for menu completion: "ROOT>" at the end
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WaitForString(serial_handle, "ROOT>");
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// send start program command "SPRO"
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SendWithEcho(serial_handle, "SPRO\r");
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SLEEP(100); // wait a little while for startup
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return 0;
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}
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/********** Target functions using the Monitor Protocol **********/
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// read a byte using the target monitor
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UINT8 ReadByte(tUartHandle serial_handle, UINT32 addr)
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{
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UINT8 send;
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UINT8 received;
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// send the address command
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send = ADDRESS;
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UartWrite(serial_handle, &send, 1);
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// transmit the address, big endian
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send = (UINT8)((addr>>24) & 0xFF);
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UartWrite(serial_handle, &send, 1);
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send = (UINT8)((addr>>16) & 0xFF);
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UartWrite(serial_handle, &send, 1);
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send = (UINT8)((addr>>8) & 0xFF);
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UartWrite(serial_handle, &send, 1);
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send = (UINT8)(addr & 0xFF);
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UartWrite(serial_handle, &send, 1);
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UartRead(serial_handle, &received, 1); // response
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if (received != ADDRESS)
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{
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printf("Protocol error!\n");
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return 1;
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}
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// send the read command
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send = BYTE_READ;
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UartWrite(serial_handle, &send, 1);
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UartRead(serial_handle, &received, 1); // response
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return received;
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}
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// write a byte using the target monitor
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int WriteByte(tUartHandle serial_handle, UINT32 addr, UINT8 byte)
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{
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UINT8 send;
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UINT8 received;
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// send the address command
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send = ADDRESS;
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UartWrite(serial_handle, &send, 1);
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// transmit the address, big endian
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send = (UINT8)((addr>>24) & 0xFF);
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UartWrite(serial_handle, &send, 1);
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send = (UINT8)((addr>>16) & 0xFF);
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UartWrite(serial_handle, &send, 1);
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send = (UINT8)((addr>>8) & 0xFF);
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UartWrite(serial_handle, &send, 1);
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send = (UINT8)(addr & 0xFF);
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UartWrite(serial_handle, &send, 1);
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UartRead(serial_handle, &received, 1); // response
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if (received != ADDRESS)
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{
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printf("Protocol error, receiced 0x%02X!\n", received);
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return 1;
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}
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// send the write command
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send = BYTE_WRITE;
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UartWrite(serial_handle, &send, 1);
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// transmit the data
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UartWrite(serial_handle, &byte, 1);
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UartRead(serial_handle, &received, 1); // response
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if (received != BYTE_WRITE)
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{
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printf("Protocol error!\n");
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return 1;
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}
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return 0;
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}
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// read many bytes using the target monitor
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int ReadByteMultiple(tUartHandle serial_handle, UINT32 addr, UINT32 size, UINT8* pBuffer)
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{
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UINT8 send, received;
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// send the address command
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send = ADDRESS;
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UartWrite(serial_handle, &send, 1);
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// transmit the address, big endian
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send = (UINT8)((addr>>24) & 0xFF);
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UartWrite(serial_handle, &send, 1);
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send = (UINT8)((addr>>16) & 0xFF);
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UartWrite(serial_handle, &send, 1);
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send = (UINT8)((addr>>8) & 0xFF);
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UartWrite(serial_handle, &send, 1);
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send = (UINT8)(addr & 0xFF);
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UartWrite(serial_handle, &send, 1);
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UartRead(serial_handle, &received, 1); // response
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if (received != ADDRESS)
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{
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printf("Protocol error!\n");
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return 1;
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}
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while (size)
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{
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if (size >= 16)
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{ // we can use a "burst" command
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send = BYTE_READ16;
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UartWrite(serial_handle, &send, 1); // send the read command
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UartRead(serial_handle, pBuffer, 16); // data response
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pBuffer += 16;
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size -= 16;
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}
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else
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{ // use single byte command
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send = BYTE_READ;
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UartWrite(serial_handle, &send, 1); // send the read command
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UartRead(serial_handle, pBuffer++, 1); // data response
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size--;
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}
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}
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return 0;
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}
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// write many bytes using the target monitor
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int WriteByteMultiple(tUartHandle serial_handle, UINT32 addr, UINT32 size, UINT8* pBuffer)
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{
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UINT8 send, received;
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// send the address command
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send = ADDRESS;
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UartWrite(serial_handle, &send, 1);
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// transmit the address, big endian
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send = (UINT8)((addr>>24) & 0xFF);
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UartWrite(serial_handle, &send, 1);
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send = (UINT8)((addr>>16) & 0xFF);
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UartWrite(serial_handle, &send, 1);
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send = (UINT8)((addr>>8) & 0xFF);
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UartWrite(serial_handle, &send, 1);
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send = (UINT8)(addr & 0xFF);
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UartWrite(serial_handle, &send, 1);
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UartRead(serial_handle, &received, 1); // response
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if (received != ADDRESS)
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{
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printf("Protocol error!\n");
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return 1;
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}
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while (size)
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{
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if (size >= 16)
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{ // we can use a "burst" command
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send = BYTE_WRITE16;
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UartWrite(serial_handle, &send, 1); // send the write command
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UartWrite(serial_handle, pBuffer, 16); // transmit the data
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UartRead(serial_handle, &received, 1); // response
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if (received != BYTE_WRITE16)
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{
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printf("Protocol error!\n");
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return 1;
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}
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pBuffer += 16;
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size -= 16;
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}
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else
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{ // use single byte command
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send = BYTE_WRITE;
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UartWrite(serial_handle, &send, 1); // send the write command
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UartWrite(serial_handle, pBuffer++, 1); // transmit the data
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UartRead(serial_handle, &received, 1); // response
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if (received != BYTE_WRITE)
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{
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printf("Protocol error!\n");
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return 1;
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}
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size--;
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}
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}
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return 0;
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}
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// write many bytes using the target monitor
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int FlashByteMultiple(tUartHandle serial_handle, UINT32 addr, UINT32 size, UINT8* pBuffer)
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{
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UINT8 send, received;
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// send the address command
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send = ADDRESS;
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UartWrite(serial_handle, &send, 1);
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// transmit the address, big endian
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send = (UINT8)((addr>>24) & 0xFF);
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UartWrite(serial_handle, &send, 1);
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send = (UINT8)((addr>>16) & 0xFF);
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UartWrite(serial_handle, &send, 1);
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send = (UINT8)((addr>>8) & 0xFF);
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UartWrite(serial_handle, &send, 1);
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send = (UINT8)(addr & 0xFF);
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UartWrite(serial_handle, &send, 1);
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UartRead(serial_handle, &received, 1); // response
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if (received != ADDRESS)
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{
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printf("Protocol error!\n");
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return 1;
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}
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while (size)
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{
|
|
if (size >= 16)
|
|
{ // we can use a "burst" command
|
|
send = BYTE_FLASH16;
|
|
UartWrite(serial_handle, &send, 1); // send the write command
|
|
UartWrite(serial_handle, pBuffer, 16); // transmit the data
|
|
UartRead(serial_handle, &received, 1); // response
|
|
if (received != BYTE_FLASH16)
|
|
{
|
|
printf("Protocol error!\n");
|
|
return 1;
|
|
}
|
|
pBuffer += 16;
|
|
size -= 16;
|
|
}
|
|
else
|
|
{ // use single byte command
|
|
send = BYTE_FLASH;
|
|
UartWrite(serial_handle, &send, 1); // send the write command
|
|
UartWrite(serial_handle, pBuffer++, 1); // transmit the data
|
|
UartRead(serial_handle, &received, 1); // response
|
|
if (received != BYTE_FLASH)
|
|
{
|
|
printf("Protocol error!\n");
|
|
return 1;
|
|
}
|
|
size--;
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
// read a 16bit halfword using the target monitor
|
|
UINT16 ReadHalfword(tUartHandle serial_handle, UINT32 addr)
|
|
{
|
|
UINT8 send;
|
|
UINT8 received;
|
|
UINT16 halfword;
|
|
|
|
// send the address command
|
|
send = ADDRESS;
|
|
UartWrite(serial_handle, &send, 1);
|
|
|
|
// transmit the address, big endian
|
|
send = (UINT8)((addr>>24) & 0xFF);
|
|
UartWrite(serial_handle, &send, 1);
|
|
send = (UINT8)((addr>>16) & 0xFF);
|
|
UartWrite(serial_handle, &send, 1);
|
|
send = (UINT8)((addr>>8) & 0xFF);
|
|
UartWrite(serial_handle, &send, 1);
|
|
send = (UINT8)(addr & 0xFF);
|
|
UartWrite(serial_handle, &send, 1);
|
|
|
|
UartRead(serial_handle, &received, 1); // response
|
|
if (received != ADDRESS)
|
|
{
|
|
printf("Protocol error!\n");
|
|
return 1;
|
|
}
|
|
|
|
// send the read command
|
|
send = HALFWORD_READ;
|
|
UartWrite(serial_handle, &send, 1);
|
|
|
|
UartRead(serial_handle, &received, 1); // response
|
|
halfword = received << 8; // highbyte
|
|
UartRead(serial_handle, &received, 1);
|
|
halfword |= received; // lowbyte
|
|
|
|
return halfword;
|
|
}
|
|
|
|
|
|
// write a 16bit halfword using the target monitor
|
|
int WriteHalfword(tUartHandle serial_handle, UINT32 addr, UINT16 halfword)
|
|
{
|
|
UINT8 send;
|
|
UINT8 received;
|
|
|
|
// send the address command
|
|
send = ADDRESS;
|
|
UartWrite(serial_handle, &send, 1);
|
|
|
|
// transmit the address, big endian
|
|
send = (UINT8)((addr>>24) & 0xFF);
|
|
UartWrite(serial_handle, &send, 1);
|
|
send = (UINT8)((addr>>16) & 0xFF);
|
|
UartWrite(serial_handle, &send, 1);
|
|
send = (UINT8)((addr>>8) & 0xFF);
|
|
UartWrite(serial_handle, &send, 1);
|
|
send = (UINT8)(addr & 0xFF);
|
|
UartWrite(serial_handle, &send, 1);
|
|
|
|
UartRead(serial_handle, &received, 1); // response
|
|
if (received != ADDRESS)
|
|
{
|
|
printf("Protocol error!\n");
|
|
return 1;
|
|
}
|
|
|
|
// send the write command
|
|
send = HALFWORD_WRITE;
|
|
UartWrite(serial_handle, &send, 1);
|
|
|
|
// transmit the data
|
|
send = halfword >> 8; // highbyte
|
|
UartWrite(serial_handle, &send, 1);
|
|
send = halfword & 0xFF; // lowbyte
|
|
UartWrite(serial_handle, &send, 1);
|
|
|
|
UartRead(serial_handle, &received, 1); // response
|
|
|
|
if (received != HALFWORD_WRITE)
|
|
{
|
|
printf("Protocol error!\n");
|
|
return 1;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
// change baudrate using target monitor
|
|
int SetTargetBaudrate(tUartHandle serial_handle, long lClock, long lBaudrate)
|
|
{
|
|
UINT8 send;
|
|
UINT8 received;
|
|
UINT8 brr;
|
|
long lBRR;
|
|
|
|
lBRR = lClock / lBaudrate;
|
|
lBRR = ((lBRR + 16) / 32) - 1; // with rounding
|
|
brr = (UINT8)lBRR;
|
|
|
|
// send the command
|
|
send = BAUDRATE;
|
|
UartWrite(serial_handle, &send, 1);
|
|
UartWrite(serial_handle, &brr, 1); // send the BRR value
|
|
UartRead(serial_handle, &received, 1); // response ack
|
|
|
|
if (received != BAUDRATE)
|
|
{ // bad situation, now we're unclear about the baudrate of the target
|
|
printf("Protocol error!\n");
|
|
return 1;
|
|
}
|
|
|
|
SLEEP(100); // give it some time to settle
|
|
|
|
// change our baudrate, too
|
|
UartConfig(serial_handle, lBaudrate, eNOPARITY, eONESTOPBIT, 8);
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
// call a subroutine using the target monitor
|
|
int Execute(tUartHandle serial_handle, UINT32 addr, bool bReturns)
|
|
{
|
|
UINT8 send;
|
|
UINT8 received;
|
|
|
|
// send the address command
|
|
send = ADDRESS;
|
|
UartWrite(serial_handle, &send, 1);
|
|
|
|
// transmit the address, big endian
|
|
send = (UINT8)((addr>>24) & 0xFF);
|
|
UartWrite(serial_handle, &send, 1);
|
|
send = (UINT8)((addr>>16) & 0xFF);
|
|
UartWrite(serial_handle, &send, 1);
|
|
send = (UINT8)((addr>>8) & 0xFF);
|
|
UartWrite(serial_handle, &send, 1);
|
|
send = (UINT8)(addr & 0xFF);
|
|
UartWrite(serial_handle, &send, 1);
|
|
|
|
UartRead(serial_handle, &received, 1); // response
|
|
if (received != ADDRESS)
|
|
{
|
|
printf("Protocol error!\n");
|
|
return 1;
|
|
}
|
|
|
|
// send the execute command
|
|
send = EXECUTE;
|
|
UartWrite(serial_handle, &send, 1);
|
|
if (bReturns)
|
|
{ // we expect the call to return control to minimon
|
|
UartRead(serial_handle, &received, 1); // response
|
|
|
|
if (received != EXECUTE)
|
|
{
|
|
printf("Protocol error!\n");
|
|
return 1;
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
|