OpenCores
URL https://opencores.org/ocsvn/openrisc_2011-10-31/openrisc_2011-10-31/trunk

Subversion Repositories openrisc_2011-10-31

[/] [openrisc/] [trunk/] [bootloaders/] [orpmon/] [services/] [modem.c] - Diff between revs 246 and 406

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Rev 246 Rev 406
Line 17... Line 17... 
 
 
 
 
#define RETRY   10
 
#define RETRY   10
 
#define TIMEOUT 3
 
#define TIMEOUT 3
 
 
 
 
 
/* update CRC */
 
/* update CRC */
 
unsigned short
 
unsigned short updcrc(register int c, register unsigned int crc)
 
updcrc(register int c, register unsigned int crc)
 
 
 
{
 
{
 
  register int count;
 
  register int count;
 
 
 
 
 
  for (count=8; --count>=0;) {
 
  for (count=8; --count>=0;) {
 
    if (crc & 0x8000) {
 
    if (crc & 0x8000) {
 
      crc <<= 1;
 
      crc <<= 1;
 
      crc += (((c<<=1) & 0400)  !=  0);
 
      crc += (((c<<=1) & 0400)  !=  0);
 
      crc ^= 0x1021;
 
      crc ^= 0x1021;
 
    }
 
                } else {
 
    else {
 
 
 
      crc <<= 1;
 
      crc <<= 1;
 
      crc += (((c<<=1) & 0400)  !=  0);
 
      crc += (((c<<=1) & 0400)  !=  0);
 
    }
 
    }
 
  }
 
  }
 
  return crc;
 
  return crc;
 
}
 
}
 
 
 
 
 
 
 
 
 
static thand_f *mTimeHandler;
 
static thand_f *mTimeHandler;
 
static unsigned long mTimeValue;
 
static unsigned long mTimeValue;
 
static int mTimeoutCount;
 
static int mTimeoutCount;
 
 
 
 
 
static unsigned long src_addr;
 
static unsigned long src_addr;
Line 50... Line 47... 
unsigned short mycrc;
 
unsigned short mycrc;
 
unsigned long bno = 0;
 
unsigned long bno = 0;
 
 
 
 
 
static void mStartTimeout(void);
 
static void mStartTimeout(void);
 
 
 
 
 
void
 
void mSetTimeout(int iv, thand_f * f)
 
mSetTimeout(int iv, thand_f *f)
 
 
 
{
 
{
 
  if(iv == 0)
 
  if(iv == 0)
 
    mTimeHandler = (thand_f *)0;
 
    mTimeHandler = (thand_f *)0;
 
  else {
 
  else {
 
    mTimeHandler = f;
 
    mTimeHandler = f;
 
    mTimeValue = get_timer(0) + iv;
 
    mTimeValue = get_timer(0) + iv;
 
  }
 
  }
 
}
 
}
 
 
 
 
 
static void
 
static void mStartTimeout(void)
 
mStartTimeout(void)
 
 
 
{
 
{
 
  if(++mTimeoutCount >= RETRY) {
 
  if(++mTimeoutCount >= RETRY) {
 
    printf("...retry counter exceeded, quitting...\n");
 
    printf("...retry counter exceeded, quitting...\n");
 
    return;
 
    return;
 
  } else {
 
  } else {
Line 75... Line 70... 
    uart_putc(C);
 
    uart_putc(C);
 
 
 
 
 
  }
 
  }
 
}
 
}
 
 
 
 
 
static void
 
static void mReceiveTimeout(void)
 
mReceiveTimeout(void)
 
 
 
{
 
{
 
  if(++mTimeoutCount >= RETRY) {
 
  if(++mTimeoutCount >= RETRY) {
 
    uart_putc(NAK);
 
    uart_putc(NAK);
 
    printf("...");
 
    printf("...");
 
    return;
 
    return;
Line 88... Line 82... 
    mSetTimeout(TIMEOUT * TICKS_PER_SEC, mReceiveTimeout);
 
    mSetTimeout(TIMEOUT * TICKS_PER_SEC, mReceiveTimeout);
 
    uart_putc(NAK);
 
    uart_putc(NAK);
 
  }
 
  }
 
}
 
}
 
 
 
 
 
int
 
int getBlock(unsigned char t)
 
getBlock(unsigned char t)
 
 
 
{
 
{
 
  unsigned int i = 0, j = 0;
 
  unsigned int i = 0, j = 0;
 
  unsigned char mybuf[133];
 
  unsigned char mybuf[133];
 
  unsigned char bNo, nBno;
 
  unsigned char bNo, nBno;
 
  unsigned long dst_addr;
 
  unsigned long dst_addr;
Line 118... Line 111... 
    if((bNo == 0x00) && (nBno == 0xff) && (bno == 0)) { /* start block */
 
    if((bNo == 0x00) && (nBno == 0xff) && (bno == 0)) { /* start block */
 
      modemMode = 2; /* ymodem */
 
      modemMode = 2; /* ymodem */
 
      uart_putc(ACK);
 
      uart_putc(ACK);
 
      uart_putc(C);
 
      uart_putc(C);
 
      return 1;
 
      return 1;
 
    }
 
                } else if ((0xff - bNo) == nBno) {      /* data block */
 
    else if((0xff-bNo) == nBno) { /* data block */
 
 
 
      for(i = 2, j = 0; i < 130; i++, j++) {
 
      for(i = 2, j = 0; i < 130; i++, j++) {
 
        length++;
 
        length++;
 
        mycrc = updcrc(mybuf[i], mycrc);
 
        mycrc = updcrc(mybuf[i], mycrc);
 
        dst_addr = src_addr+(bno*0x8000)+((bNo-1)*0x80)+j;
 
                                dst_addr =
 
 
 
                                    src_addr + (bno * 0x8000) +
 
 
 
                                    ((bNo - 1) * 0x80) + j;
 
        REG8(dst_addr) = mybuf[i];
 
        REG8(dst_addr) = mybuf[i];
 
      }
 
      }
 
 
 
 
 
      mycrc = updcrc(mybuf[130], mycrc);
 
      mycrc = updcrc(mybuf[130], mycrc);
 
      mycrc = updcrc(mybuf[131], mycrc);
 
      mycrc = updcrc(mybuf[131], mycrc);
 
 
 
 
 
      if(mycrc == 0) /* CRC match! */ {
 
                        if (mycrc == 0) {        /* CRC match! */
 
        uart_putc(ACK);
 
        uart_putc(ACK);
 
        for(i=0;i < 128; i+=4) {
 
        for(i=0;i < 128; i+=4) {
 
        /*      for(j=0; j<4; j++) {
 
        /*      for(j=0; j<4; j++) {
 
          tmp = tmp << 8;
 
          tmp = tmp << 8;
 
          tmp |= mybuf[i+j+2];
 
          tmp |= mybuf[i+j+2];
Line 143... Line 137... 
        fl_word_program(dst_addr, tmp);*/
 
        fl_word_program(dst_addr, tmp);*/
 
        }
 
        }
 
        if(bNo == 0xff)
 
        if(bNo == 0xff)
 
          bno++;
 
          bno++;
 
        return 1;
 
        return 1;
 
      }
 
                        } else {
 
      else {
 
 
 
        uart_putc(NAK);
 
        uart_putc(NAK);
 
        return -1;
 
        return -1;
 
      }
 
      }
 
    }
 
                } else {        /* packet id didn't match neg packet id! */
 
    else { /* packet id didn't match neg packet id! */
 
 
 
      uart_putc(NAK);
 
      uart_putc(NAK);
 
      return -1;
 
      return -1;
 
    }
 
    }
 
    return 1;
 
    return 1;
 
    break;
 
    break;
Line 161... Line 153... 
    if(modemMode == 2) {/* ymodem */
 
    if(modemMode == 2) {/* ymodem */
 
      uart_putc(NAK);
 
      uart_putc(NAK);
 
      if(uart_getc() == EOT) {
 
      if(uart_getc() == EOT) {
 
        uart_putc(ACK);
 
        uart_putc(ACK);
 
        uart_putc(C);
 
        uart_putc(C);
 
      }
 
                        } else
 
      else
 
 
 
        uart_putc(ACK);
 
        uart_putc(ACK);
 
    } else /* zmodem */
 
    } else /* zmodem */
 
      uart_putc(ACK);
 
      uart_putc(ACK);
 
 
 
 
 
    return 0;
 
    return 0;
Line 176... Line 167... 
    uart_putc(NAK);
 
    uart_putc(NAK);
 
    return -1;
 
    return -1;
 
  }
 
  }
 
}
 
}
 
 
 
 
 
int
 
int mGetData(unsigned long saddr)
 
mGetData(unsigned long saddr)
 
 
 
{
 
{
 
  int retval = 1;
 
  int retval = 1;
 
  unsigned char c;
 
  unsigned char c;
 
 
 
 
 
  length = 0;
 
  length = 0;
Line 192... Line 182... 
  printf("src_addr: 0x%lx\n", src_addr);
 
  printf("src_addr: 0x%lx\n", src_addr);
 
  if(fl_init() != 0) {
 
  if(fl_init() != 0) {
 
    printf("Flash init failed!\n");
 
    printf("Flash init failed!\n");
 
    return(-1);
 
    return(-1);
 
  }
 
  }
 
 
 
 
 
#if 0
 
#if 0
 
  printf("Unlocking flash...");
 
  printf("Unlocking flash...");
 
  for (i = 0, c = FLASH_BASE_ADDR; i < (FLASH_SIZE / FLASH_BLOCK_SIZE);
 
  for (i = 0, c = FLASH_BASE_ADDR; i < (FLASH_SIZE / FLASH_BLOCK_SIZE);
 
       i++, c += FLASH_BLOCK_SIZE)
 
       i++, c += FLASH_BLOCK_SIZE)
 
    if (fl_unlock_one_block (c)) return 1;
 
                if (fl_unlock_one_block(c))
 
 
 
                        return 1;
 
  printf("done\n");
 
  printf("done\n");
 
 
 
 
 
  printf("Erasing flash...");
 
  printf("Erasing flash...");
 
  for (i = 0, c = FLASH_BASE_ADDR; i < (FLASH_SIZE / FLASH_BLOCK_SIZE);
 
  for (i = 0, c = FLASH_BASE_ADDR; i < (FLASH_SIZE / FLASH_BLOCK_SIZE);
 
       i++, c += FLASH_BLOCK_SIZE)
 
       i++, c += FLASH_BLOCK_SIZE)
 
    if (fl_block_erase (c)) return 1;
 
                if (fl_block_erase(c))
 
 
 
                        return 1;
 
    printf ("done\n");
 
    printf ("done\n");
 
#endif
 
#endif
 
  printf("Waiting...");
 
  printf("Waiting...");
 
 
 
 
 
  mTimeoutCount = 0;
 
  mTimeoutCount = 0;
Line 233... Line 224... 
 
 
 
 
  if(modemMode == 2) {
 
  if(modemMode == 2) {
 
    c = uart_getc();
 
    c = uart_getc();
 
    retval = getBlock(c); /* last 'dummy' block for YModem */
 
    retval = getBlock(c); /* last 'dummy' block for YModem */
 
    printf("... protocol: YModem, ");
 
    printf("... protocol: YModem, ");
 
  }
 
        } else
 
  else
 
 
 
    printf("... protocol: ZModem, ");
 
    printf("... protocol: ZModem, ");
 
  return length;
 
  return length;
 
}
 
}
 
 
 
 
 
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