/*
   * (C) Copyright 2000-2002
   * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
   *

   * SPDX-License-Identifier:	GPL-2.0+

   */

  #include <config.h>

  #include <common.h>

  #include <version.h>

  #include <linux/ctype.h>
  #include <asm/io.h>

  
  int display_options (void)
  {

  #if defined(BUILD_TAG)
  	printf ("
  
  %s, Build: %s
  
  ", version_string, BUILD_TAG);
  #else
  	printf ("
  
  %s
  
  ", version_string);
  #endif
  	return 0;
  }
  
  /*

   * print sizes as "xxx KiB", "xxx.y KiB", "xxx MiB", "xxx.y MiB",
   * xxx GiB, xxx.y GiB, etc as needed; allow for optional trailing string

   * (like "
  ")

   */

  void print_size(unsigned long long size, const char *s)

  {

  	unsigned long m = 0, n;

  	unsigned long long f;

  	static const char names[] = {'E', 'P', 'T', 'G', 'M', 'K'};

  	unsigned long d = 10 * ARRAY_SIZE(names);

  	char c = 0;
  	unsigned int i;

  	for (i = 0; i < ARRAY_SIZE(names); i++, d -= 10) {
  		if (size >> d) {

  			c = names[i];
  			break;

  		}

  	}

  	if (!c) {
  		printf("%llu Bytes%s", size, s);
  		return;
  	}

  	n = size >> d;
  	f = size & ((1ULL << d) - 1);

  	/* If there's a remainder, deal with it */

  	if (f) {
  		m = (10ULL * f + (1ULL << (d - 1))) >> d;

  		if (m >= 10) {
  			m -= 10;
  			n += 1;
  		}

  	}

  	printf ("%lu", n);

  	if (m) {
  		printf (".%ld", m);
  	}

  	printf (" %ciB%s", c, s);

  }

  
  /*
   * Print data buffer in hex and ascii form to the terminal.
   *
   * data reads are buffered so that each memory address is only read once.
   * Useful when displaying the contents of volatile registers.
   *
   * parameters:
   *    addr: Starting address to display at start of line
   *    data: pointer to data buffer
   *    width: data value width.  May be 1, 2, or 4.
   *    count: number of values to display
   *    linelen: Number of values to print per line; specify 0 for default length
   */
  #define MAX_LINE_LENGTH_BYTES (64)
  #define DEFAULT_LINE_LENGTH_BYTES (16)

  int print_buffer(ulong addr, const void *data, uint width, uint count,
  		 uint linelen)

  {

  	/* linebuf as a union causes proper alignment */
  	union linebuf {
  		uint32_t ui[MAX_LINE_LENGTH_BYTES/sizeof(uint32_t) + 1];
  		uint16_t us[MAX_LINE_LENGTH_BYTES/sizeof(uint16_t) + 1];
  		uint8_t  uc[MAX_LINE_LENGTH_BYTES/sizeof(uint8_t) + 1];
  	} lb;

  	int i;
  
  	if (linelen*width > MAX_LINE_LENGTH_BYTES)
  		linelen = MAX_LINE_LENGTH_BYTES / width;
  	if (linelen < 1)
  		linelen = DEFAULT_LINE_LENGTH_BYTES / width;
  
  	while (count) {

  		uint thislinelen = linelen;

  		printf("%08lx:", addr);
  
  		/* check for overflow condition */

  		if (count < thislinelen)
  			thislinelen = count;

  
  		/* Copy from memory into linebuf and print hex values */

  		for (i = 0; i < thislinelen; i++) {

  			uint32_t x;
  			if (width == 4)

  				x = lb.ui[i] = *(volatile uint32_t *)data;

  			else if (width == 2)

  				x = lb.us[i] = *(volatile uint16_t *)data;

  			else

  				x = lb.uc[i] = *(volatile uint8_t *)data;

  			printf(" %0*x", width * 2, x);

  			data += width;
  		}

  		while (thislinelen < linelen) {
  			/* fill line with whitespace for nice ASCII print */
  			for (i=0; i<width*2+1; i++)
  				puts(" ");
  			linelen--;
  		}

  		/* Print data in ASCII characters */

  		for (i = 0; i < thislinelen * width; i++) {

  			if (!isprint(lb.uc[i]) || lb.uc[i] >= 0x80)
  				lb.uc[i] = '.';
  		}
  		lb.uc[i] = '\0';
  		printf("    %s
  ", lb.uc);

  
  		/* update references */

  		addr += thislinelen * width;
  		count -= thislinelen;

  
  		if (ctrlc())
  			return -1;
  	}
  
  	return 0;
  }