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This commit is contained in:
Willem Oldemans
2022-11-13 22:53:56 +01:00
commit 0598c09364
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270
CAD/Ultimaker 2 DIY/Firmware/20160823_UM2.1-Firmware-UM2.1/MarlinSimulator/component/sdcard.cpp Executable file
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#include <dirent.h>
#include <avr/io.h>
#include "sdcard.h"
#include "../../Marlin/SdFatStructs.h"
sdcardSimulation::sdcardSimulation(const char* basePath, int errorRate)
: errorRate(errorRate)
{
this->basePath = basePath;
SPDR.setCallback(DELEGATE(registerDelegate, sdcardSimulation, *this, ISP_SPDR_callback));
sd_state = 0;
sd_buffer_pos = 0;
}
sdcardSimulation::~sdcardSimulation()
{
}
static const uint16_t crctab[] = {
0x0000, 0x1021, 0x2042, 0x3063, 0x4084, 0x50A5, 0x60C6, 0x70E7,
0x8108, 0x9129, 0xA14A, 0xB16B, 0xC18C, 0xD1AD, 0xE1CE, 0xF1EF,
0x1231, 0x0210, 0x3273, 0x2252, 0x52B5, 0x4294, 0x72F7, 0x62D6,
0x9339, 0x8318, 0xB37B, 0xA35A, 0xD3BD, 0xC39C, 0xF3FF, 0xE3DE,
0x2462, 0x3443, 0x0420, 0x1401, 0x64E6, 0x74C7, 0x44A4, 0x5485,
0xA56A, 0xB54B, 0x8528, 0x9509, 0xE5EE, 0xF5CF, 0xC5AC, 0xD58D,
0x3653, 0x2672, 0x1611, 0x0630, 0x76D7, 0x66F6, 0x5695, 0x46B4,
0xB75B, 0xA77A, 0x9719, 0x8738, 0xF7DF, 0xE7FE, 0xD79D, 0xC7BC,
0x48C4, 0x58E5, 0x6886, 0x78A7, 0x0840, 0x1861, 0x2802, 0x3823,
0xC9CC, 0xD9ED, 0xE98E, 0xF9AF, 0x8948, 0x9969, 0xA90A, 0xB92B,
0x5AF5, 0x4AD4, 0x7AB7, 0x6A96, 0x1A71, 0x0A50, 0x3A33, 0x2A12,
0xDBFD, 0xCBDC, 0xFBBF, 0xEB9E, 0x9B79, 0x8B58, 0xBB3B, 0xAB1A,
0x6CA6, 0x7C87, 0x4CE4, 0x5CC5, 0x2C22, 0x3C03, 0x0C60, 0x1C41,
0xEDAE, 0xFD8F, 0xCDEC, 0xDDCD, 0xAD2A, 0xBD0B, 0x8D68, 0x9D49,
0x7E97, 0x6EB6, 0x5ED5, 0x4EF4, 0x3E13, 0x2E32, 0x1E51, 0x0E70,
0xFF9F, 0xEFBE, 0xDFDD, 0xCFFC, 0xBF1B, 0xAF3A, 0x9F59, 0x8F78,
0x9188, 0x81A9, 0xB1CA, 0xA1EB, 0xD10C, 0xC12D, 0xF14E, 0xE16F,
0x1080, 0x00A1, 0x30C2, 0x20E3, 0x5004, 0x4025, 0x7046, 0x6067,
0x83B9, 0x9398, 0xA3FB, 0xB3DA, 0xC33D, 0xD31C, 0xE37F, 0xF35E,
0x02B1, 0x1290, 0x22F3, 0x32D2, 0x4235, 0x5214, 0x6277, 0x7256,
0xB5EA, 0xA5CB, 0x95A8, 0x8589, 0xF56E, 0xE54F, 0xD52C, 0xC50D,
0x34E2, 0x24C3, 0x14A0, 0x0481, 0x7466, 0x6447, 0x5424, 0x4405,
0xA7DB, 0xB7FA, 0x8799, 0x97B8, 0xE75F, 0xF77E, 0xC71D, 0xD73C,
0x26D3, 0x36F2, 0x0691, 0x16B0, 0x6657, 0x7676, 0x4615, 0x5634,
0xD94C, 0xC96D, 0xF90E, 0xE92F, 0x99C8, 0x89E9, 0xB98A, 0xA9AB,
0x5844, 0x4865, 0x7806, 0x6827, 0x18C0, 0x08E1, 0x3882, 0x28A3,
0xCB7D, 0xDB5C, 0xEB3F, 0xFB1E, 0x8BF9, 0x9BD8, 0xABBB, 0xBB9A,
0x4A75, 0x5A54, 0x6A37, 0x7A16, 0x0AF1, 0x1AD0, 0x2AB3, 0x3A92,
0xFD2E, 0xED0F, 0xDD6C, 0xCD4D, 0xBDAA, 0xAD8B, 0x9DE8, 0x8DC9,
0x7C26, 0x6C07, 0x5C64, 0x4C45, 0x3CA2, 0x2C83, 0x1CE0, 0x0CC1,
0xEF1F, 0xFF3E, 0xCF5D, 0xDF7C, 0xAF9B, 0xBFBA, 0x8FD9, 0x9FF8,
0x6E17, 0x7E36, 0x4E55, 0x5E74, 0x2E93, 0x3EB2, 0x0ED1, 0x1EF0
};
static uint16_t CRC_CCITT(const uint8_t* data, size_t n) {
uint16_t crc = 0;
for (size_t i = 0; i < n; i++) {
crc = crctab[(crc >> 8 ^ data[i]) & 0XFF] ^ (crc << 8);
}
return crc;
}
FILE* simFile;
//Total crappy fake FAT32 simulation, works for 1 file, sort of.
void sdcardSimulation::read_sd_block(int nr)
{
memset(sd_buffer, 0, 512);
switch(nr)
{
case 0x000:{//MBR
mbr_t* mbr = (mbr_t*)sd_buffer;
mbr->part[0].boot = 0;
mbr->part[0].totalSectors = 0x200000;
mbr->part[0].firstSector = 1;
}break;
case 0x001:{//fat32_boot_t
fat32_boot_t* boot = (fat32_boot_t*)sd_buffer;
boot->bytesPerSector = 512;
boot->fatCount = 1;
boot->reservedSectorCount = 1;
boot->sectorsPerCluster = 1;
boot->sectorsPerFat32 = 0x400;
boot->rootDirEntryCount = 0;
boot->fat32RootCluster = 1;
}break;
case 0x002:{//FAT32 for root dir entries
uint32_t* fat32 = (uint32_t*)sd_buffer;
for(uint8_t n=0;n<128;n++)
fat32[n] = 0X0FFFFFF8;
for(uint8_t n=0;n<128;n++)
fat32[n] = n + 1;
fat32[127] = 0X0FFFFFF8;
}break;
default:
if (nr >= 0x401 && nr < 0x500) //root directory: dir_t
{
dir_t* dir = (dir_t*)sd_buffer;
DIR* dh = opendir(basePath);
struct dirent *entry;
int idx = 0;
int reqIdx = nr - 0x401;
while((entry=readdir(dh))!=NULL)
{
if (entry->d_name[0] == '.')
continue;
if (idx == reqIdx)
break;
idx++;
}
if (entry == NULL)
return;
const char* namePtr = entry->d_name;
int fatNr = 0;
while(*namePtr)
{
vfat_t *vfat = (vfat_t*)dir;
vfat->firstClusterLow = 0;
vfat->sequenceNumber = 0x41 + fatNr;
for(unsigned int n=0;n<5&&*namePtr;n++)
vfat->name1[n*2] = *namePtr++;
for(unsigned int n=0;n<6&&*namePtr;n++)
vfat->name2[n*2] = *namePtr++;
for(unsigned int n=0;n<2&&*namePtr;n++)
vfat->name3[n*2] = *namePtr++;
vfat->attributes = DIR_ATT_LONG_NAME;
dir++;
fatNr++;
}
dir->attributes = 0;
memcpy(dir->name, "FAKEFILEXCO", 8+3);
if (strrchr(entry->d_name, '.'))
dir->name[8] = toupper(strrchr(entry->d_name, '.')[1]);
dir->firstClusterHigh = 0;
dir->firstClusterLow = 256;
if (simFile == NULL)
simFile = fopen("c:/models/Box_20x20x10.gcode", "rb");
fseek(simFile, 0, SEEK_END);
dir->fileSize = ftell(simFile);
fseek(simFile, 0, SEEK_SET);
dir++;
fatNr++;
closedir(dh);
while(fatNr < 16)
{
dir->attributes = DIR_ATT_HIDDEN;
dir->name[0] = DIR_NAME_DELETED;
dir++;
fatNr++;
}
}
else if (nr >= 4 && nr < 0x400)
{
//FAT32 tables for file, just link to the next block
uint32_t* fat32 = (uint32_t*)sd_buffer;
for(uint8_t n=0;n<128;n++)
fat32[n] = (nr-2) * 128 + n + 1;
}
else if (nr >= 0x500 && nr < 0x20000)
{
//Actual data blocks
fseek(simFile, (nr - 0x501) * 512, SEEK_SET);
fread(sd_buffer, 512, 1, simFile);
}else{
memset(sd_buffer, 0xFF, 512);
printf("Read SD?: %x\n", nr);
//exit(1);
}
break;
}
uint16_t crc = CRC_CCITT(sd_buffer, 512);
sd_buffer[512] = crc >> 8;
sd_buffer[513] = crc;
}
void sdcardSimulation::ISP_SPDR_callback(uint8_t oldValue, uint8_t& newValue)
{
if (errorRate && (rand() % errorRate) == 0)
newValue = rand();
if ((PING & _BV(2)))
{
//No card inserted, return 0xFF
newValue = 0xFF;
SPSR |= _BV(SPIF);//Mark transfer finished
return;
}
switch(sd_state)
{
case 0://Read CMD
case 2://Read ACMD
sd_buffer[sd_buffer_pos++] = newValue;
if (sd_buffer_pos == 1 && (sd_buffer[0] & 0xC0) != 0x40)
sd_buffer_pos = 0;
if (sd_buffer_pos == 6) // 1 cmd, 4 param, 1 crc
sd_state += 1;
break;
case 1://Return status of CMD
sd_state = 0;
sd_buffer_pos = 0;
switch(sd_buffer[0] & 0x3F)
{
case 0x00://CMD0 - GO_IDLE_STATE
newValue = 0x01; //Report R1_IDLE_STATE
break;
case 0x08://CMD8 - SEND_IF_COND
newValue = 0x04; //Report R1_ILLEGAL_COMMAND
break;
case 0x0C://CMD12 - STOP_TRANSMISSION
newValue = 0x01; //Report R1_IDLE_STATE
break;
case 0x11://CMD17 - READ_SINGLE_BLOCK
newValue = 0x00;//R1_READY_STATE
sd_read_block_nr = (sd_buffer[1] << 24) | (sd_buffer[2] << 16) | (sd_buffer[3] << 8) | (sd_buffer[4] << 0);
read_sd_block(sd_read_block_nr >> 9);
sd_state = 10;
sd_buffer_pos = 0;
break;
case 0x37://CMD55 - APP_CMD
sd_state = 2;
break;
default:
printf("SD CMD: %02x %02x %02x %02x %02x %02x\n", sd_buffer[0] & 0x3F, sd_buffer[1], sd_buffer[2], sd_buffer[3], sd_buffer[4], sd_buffer[5]);
break;
}
break;
case 3://Return status of ACMD
sd_state = 0;
sd_buffer_pos = 0;
switch(sd_buffer[0] & 0x3F)
{
case 0x29://ACMD41 - SD_SEND_OP_COMD
newValue = 0x00;//R1_READY_STATE
break;
default:
printf("SD ACMD: %02x %02x %02x %02x %02x %02x\n", sd_buffer[0] & 0x3F, sd_buffer[1], sd_buffer[2], sd_buffer[3], sd_buffer[4], sd_buffer[5]);
break;
}
break;
case 10://READ BLOCK
if (sd_buffer_pos == 0)
newValue = 0xFE;//DATA_START_BLOCK
else
newValue = sd_buffer[sd_buffer_pos-1];
sd_buffer_pos++;
if (sd_buffer_pos == 512 + 1 + 2)
{
sd_state = 0;
sd_buffer_pos = 0;
}
break;
}
//Introduce random errors in SD communication
if (errorRate && (rand() % errorRate) == 0)
newValue = rand();
//Mark transfer finished
SPSR |= _BV(SPIF);
}