/*
- * (C) Copyright 2014 Leo C. <erbl259-lmu@yahoo.de>
+ * (C) Copyright 2014,2016 Leo C. <erbl259-lmu@yahoo.de>
*
- * SPDX-License-Identifier: GPL-2.0+
+ * SPDX-License-Identifier: GPL-2.0
*/
+#include "debug.h"
#include "common.h"
-#include <stdlib.h>
+#include <stdlib.h> /* __malloc_margin */
#include <string.h>
#include <ctype.h>
#include <avr/eeprom.h>
#include "command.h"
+#include "cli_readline.h"
+#include "eval_arg.h"
#include "print-utils.h"
-#include "debug.h"
/*
* Debugging
#ifdef DEBUG
-
-#if 0
-void dump_heap(void)
-{
- extern unsigned int __brkval;
-
- dump_ram(__malloc_heap_start,
- __brkval - (unsigned int) __malloc_heap_start,
- "=== Heap:");
-}
-#endif
-
-
/*
* Memory Display
* md addr {len}
*/
-command_ret_t do_dump_mem(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
+command_ret_t do_dump_mem(cmd_tbl_t *cmdtp, uint_fast8_t flag, int argc, char * const argv[])
{
- void (*readhow)(uint8_t *buf, uint32_t addr, uint8_t count);
+ int (*readwhat)(uint8_t *buf, uint32_t addr, uint8_t count);
(void) cmdtp; (void) flag;
switch (argv[0][3]) {
case 'r':
- readhow = ram_read_buf;
+ readwhat = ram_read_buf;
break;
case 'e':
- readhow = eeprom_read_buf;
+ readwhat = eeprom_read_buf;
break;
case 'f':
- readhow = flash_read_buf;
+ readwhat = flash_read_buf;
break;
default:
return CMD_RET_USAGE;
}
/* Address is specified since argc > 1 */
- addr = strtoul(argv[1], NULL, 16);
+ addr = eval_arg(argv[1], NULL);
/* If another parameter, it is the length to display. */
if (argc > 2)
- length = (uint16_t) strtoul(argv[2], NULL, 16);
+ length = (uint16_t) eval_arg(argv[2], NULL);
/* Print the lines. */
- dump_mem(addr, addr, length, readhow, NULL);
+ dump_mem(addr, addr, length, readwhat, NULL);
return CMD_RET_SUCCESS;
}
-command_ret_t do_eep_cp(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
+command_ret_t do_eep_cp(cmd_tbl_t *cmdtp, uint_fast8_t flag, int argc, char * const argv[])
{
uint16_t src, dest, count;
int_fast8_t step;
if (argc != 4)
return CMD_RET_USAGE;
- src = (size_t) strtoul(argv[1], NULL, 16);
- dest = (size_t) strtoul(argv[2], NULL, 16);
- count = (size_t) strtoul(argv[3], NULL, 16);
+ src = (size_t) eval_arg(argv[1], NULL);
+ dest = (size_t) eval_arg(argv[2], NULL);
+ count = (size_t) eval_arg(argv[3], NULL);
if (src > E2END) {
debug("src > EEPROM size: 0x%04x\n", src);
}
-/*------------------------------------------------------------------------------*/
+/* Modify memory.
+ *
+ * Syntax:
+ * !mm {addr}
+ * !nm {addr}
+ */
+
+ static uint8_t *mm_last_addr;
+
+static command_ret_t
+mod_mem_avr(cmd_tbl_t *cmdtp, int incrflag, uint_fast8_t flag, int argc, char * const argv[])
+{
+ uint8_t *addr;
+ int nbytes;
+
+ (void) cmdtp;
+
+ if (argc != 2)
+ return CMD_RET_USAGE;
+
+ /* We use the last specified parameters, unless new ones are
+ * entered.
+ */
+ addr = mm_last_addr;
+
+ if ((flag & CMD_FLAG_REPEAT) == 0) {
+ /* New command specified.
+ */
+
+ /* Address is specified since argc > 1
+ */
+ addr = (uint8_t *) (size_t) eval_arg(argv[1], NULL);
+ }
+
+ /* Print the address, followed by value. Then accept input for
+ * the next value. A non-converted value exits.
+ */
+ do {
+ uint8_t data = *addr;
+ printf_P(PSTR("%04x: %02x"), addr, data);
+
+ nbytes = cli_readline(PSTR(" ? "), 0);
+ if (nbytes == 0 || (nbytes == 1 && console_buffer[0] == '-')) {
+ /* <CR> pressed as only input, don't modify current
+ * location and move to next. "-" pressed will go back.
+ */
+ if (incrflag)
+ addr += nbytes ? -1 : 1;
+ nbytes = 1;
+
+ } else {
+ char *endp;
+ data = eval_arg(console_buffer, &endp);
+ nbytes = endp - console_buffer;
+ if (nbytes) {
+ *addr = data;
+ if (incrflag)
+ addr++;
+ }
+ }
+ } while (nbytes > 0);
+
+ mm_last_addr = addr;
+ return CMD_RET_SUCCESS;
+}
-#if 1
+
+command_ret_t do_mem_mm_avr(cmd_tbl_t *cmdtp, uint_fast8_t flag, int argc, char * const argv[])
+{
+ return mod_mem_avr (cmdtp, 1, flag, argc, argv);
+}
+command_ret_t do_mem_nm_avr(cmd_tbl_t *cmdtp, uint_fast8_t flag, int argc, char * const argv[])
+{
+ return mod_mem_avr (cmdtp, 0, flag, argc, argv);
+}
+
+/*------------------------------------------------------------------------------*/
struct __freelist {
size_t sz;
struct __freelist *nx;
};
-extern char *__brkval; /* first location not yet allocated */
-extern struct __freelist *__flp; /* freelist pointer (head of freelist) */
+extern char *__brkval; /* first location not yet allocated */
+extern struct __freelist *__flp; /* freelist pointer (head of freelist) */
#define STACK_POINTER() ((char *)AVR_STACK_POINTER_REG)
+size_t get_freemem(void)
+{
+ return (size_t) STACK_POINTER() - __malloc_margin - (size_t) __brkval;
+}
+
void
printfreelist(const char * title)
{
}
}
- freesum += (size_t) STACK_POINTER() - __malloc_margin - (size_t) __brkval;
+ freesum += get_freemem();
printf("SP: %04x, __brkval: %04x, Total free: %04u\n",
(size_t) STACK_POINTER(), (size_t) __brkval, freesum);
}
-#endif
+command_ret_t do_pr_free_avr(cmd_tbl_t *cmdtp UNUSED, uint_fast8_t flag UNUSED, int argc UNUSED, char * const argv[] UNUSED)
+{
+ printfreelist(NULL);
+
+ return CMD_RET_SUCCESS;
+}
+
+void dump_heap(void)
+{
+ //extern unsigned int __brkval;
+
+ dump_ram((uint8_t *)__malloc_heap_start, (size_t) __malloc_heap_start, __brkval - __malloc_heap_start,
+ "=== Heap:");
+}
+
+command_ret_t do_pr_heap_avr(cmd_tbl_t *cmdtp UNUSED, uint_fast8_t flag UNUSED, int argc UNUSED, char * const argv[] UNUSED)
+{
+ dump_heap();
+
+ return CMD_RET_SUCCESS;
+}
#endif /* DEBUG */
projects / z180-stamp.git / blobdiff