avr/print-utils.c

   1 /*
   2  * (C) Copyright 2014,2018 Leo C. <erbl259-lmu@yahoo.de>
   3  *
   4  * SPDX-License-Identifier:     GPL-2.0
   5  */
   6
   7 #include "common.h"
   8 #include <stdint.h>
   9 #include <stdio.h>
  10 #include <ctype.h>
  11 #include "con-utils.h"
  12 #include "print-utils.h"
  13
  14 void print_blanks(uint_fast8_t count)
  15 {
  16         while(count--)
  17                 putchar(' ');
  18 }
  19
  20
  21 ERRNUM eeprom_read_buf(uint8_t *buf, uint32_t addr, uint8_t count)
  22 {
  23         eeprom_read_block((void *) buf, (const void *) (size_t) addr, count);
  24         return ESUCCESS;
  25 }
  26
  27 ERRNUM ram_read_buf(uint8_t *buf, uint32_t addr, uint8_t count)
  28 {
  29         while (count--)
  30                 *buf++ = *(uint8_t *) (size_t) addr++;
  31         return ESUCCESS;
  32 }
  33
  34 ERRNUM flash_read_buf(uint8_t *buf, uint32_t addr, uint8_t count)
  35 {
  36         while (count--)
  37                 *buf++ = *(const __memx uint8_t *) (__uint24) addr++;
  38         return ESUCCESS;
  39 }
  40
  41 ERRNUM dump_mem(uint32_t address, uint32_t offset, uint32_t len,
  42                 ERRNUM (*readfkt)(uint8_t *, uint32_t, uint8_t), char *title)
  43 {
  44         uint8_t buf[16];
  45         uint8_t llen = 16;
  46         uint8_t pre = offset % 16;
  47         offset = offset & ~0x0f;
  48         len += pre;
  49         uint8_t i;
  50
  51         if (title && *title) {
  52                 printf_P(PSTR("%s\n"),title);
  53         }
  54
  55         while (len) {
  56                 if (len < 16)
  57                         llen = len;
  58                 ERRNUM err = readfkt(buf, address, llen - pre);
  59                 if (err != ESUCCESS)
  60                         return err;
  61
  62                 if (title)
  63                         print_blanks(4);
  64                 printf_P(PSTR("%.5lx:"),offset);
  65                 for (i = 0; i < llen; i++) {
  66                         if ((i % 8) == 0)
  67                                 putchar(' ');
  68                         if (i < pre)
  69                                 printf_P(PSTR(".. "));
  70                         else
  71                                 printf_P(PSTR("%.2x "), buf[i-pre]);
  72                 }
  73                 /* fill line with whitespace for nice ASCII print */
  74                 print_blanks(3 * (16u - i) + (16u-i)/8 + 1 + pre);
  75                 /* Print data in ASCII characters */
  76                 for (i = pre; i < llen; i++)
  77                         printf_P(PSTR("%c"), isprint(buf[i-pre]) ? buf[i-pre] : '.');
  78                 putchar('\n');
  79
  80                 address += llen - pre;
  81                 offset += 16;
  82                 pre = 0;
  83                 len -= llen;
  84
  85                 if (ctrlc())
  86                         return EINTR;
  87         }
  88         return ESUCCESS;
  89 }
  90
  91 void dump_eep(uint32_t addr, unsigned int len, char *title)
  92 {
  93         dump_mem(addr, addr, len, eeprom_read_buf, title);
  94 }
  95
  96 void dump_ram(uint8_t *addr, size_t offset, unsigned int len, char *title)
  97 {
  98         dump_mem((uint32_t) (size_t) addr, offset, len, ram_read_buf, title);
  99 }