]>
cloudbase.mooo.com Git - z180-stamp.git/blob - avr/cmd_mem.c
3e187701bb19e66968dc49caadbcd1186fe409df
2 * (C) Copyright 2014,2018 Leo C. <erbl259-lmu@yahoo.de>
5 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
7 * SPDX-License-Identifier: GPL-2.0
13 * Copied from FADS ROM, Dan Malek (dmalek@jlc.net)
17 #include <avr/interrupt.h>
19 #include "cli_readline.h"
20 #include "print-utils.h"
21 #include "con-utils.h"
22 #include "getopt-min.h"
29 #ifndef CONFIG_SYS_MEMTEST_SCRATCH
30 #define CONFIG_SYS_MEMTEST_SCRATCH 0
33 /* Display values from last command.
34 * Memory modify remembered values are different from display memory.
36 static uint32_t dp_last_addr
;
37 static uint32_t dp_last_length
= 0x100;
38 static uint32_t mm_last_addr
;
40 static uint32_t base_address
= 0;
42 /*--------------------------------------------------------------------------*/
44 static ERRNUM
z180_read_buf(uint8_t *buf
, uint32_t addr
, uint8_t count
)
46 if (!(z80_bus_cmd(Request
) & ZST_ACQUIRED
))
49 z80_read_block (buf
, addr
, count
);
54 /*--------------------------------------------------------------------------*/
56 command_ret_t
do_mem_size(cmd_tbl_t
*cmdtp UNUSED
, uint_fast8_t flag UNUSED
, int argc UNUSED
, char * const argv
[] UNUSED
)
58 int32_t ramsize
= z80_memsize_detect();
61 cmd_error(CMD_RET_FAILURE
, (ERRNUM
) -ramsize
, PSTR("Couldn't access RAM"));
63 printf_P(PSTR("Detected RAM: Start %.5lx, End: %.5lx, Size: %.5lx (%ld dec)\n"),
64 0l, ramsize
? ramsize
-1 : 0l, ramsize
, ramsize
);
66 return CMD_RET_SUCCESS
;
74 command_ret_t
do_mem_md(cmd_tbl_t
*cmdtp
, uint_fast8_t flag
, int argc
, char * const argv
[])
76 uint32_t addr
, length
;
81 printf_P(PSTR("flag: %d, argc: %d"), flag
, argc
);
82 for (int i
= 0; i
< argc
; i
++) {
83 printf_P(PSTR(", argv[%d]: %s"), i
, argv
[i
] ? argv
[i
] : "<NULL>");
88 /* We use the last specified parameters, unless new ones are
92 length
= dp_last_length
;
97 if ((flag
& CMD_FLAG_REPEAT
) == 0) {
98 /* Address is specified since argc > 1 */
99 addr
= eval_arg(argv
[1], NULL
);
100 addr
+= base_address
;
102 /* If another parameter, it is the length to display. */
104 length
= eval_arg(argv
[2], NULL
);
107 /* Print the lines. */
108 ERRNUM ret
= dump_mem(addr
, addr
, length
, z180_read_buf
, NULL
);
110 cmd_error(CMD_RET_FAILURE
, ret
, NULL
);
112 if (ret
== ESUCCESS
) {
113 dp_last_addr
= addr
+ length
;
114 dp_last_length
= length
;
116 return CMD_RET_SUCCESS
;
126 mod_mem(cmd_tbl_t
*cmdtp
, int incrflag
, uint_fast8_t flag
, int argc
, char * const argv
[])
135 return CMD_RET_USAGE
;
137 /* We use the last specified parameters, unless new ones are
142 if ((flag
& CMD_FLAG_REPEAT
) == 0) {
143 /* New command specified.
146 /* Address is specified since argc > 1
148 addr
= eval_arg(argv
[1], NULL
);
149 addr
+= base_address
;
152 /* Print the address, followed by value. Then accept input for
153 * the next value. A non-converted value exits.
156 z80_bus_request_or_exit();
157 data
= z80_read(addr
);
158 z80_bus_cmd(Release
);
159 printf_P(PSTR("%05lx: %02x"), addr
, data
);
161 nbytes
= cli_readline(PSTR(" ? "), 0);
162 if (nbytes
== 0 || (nbytes
== 1 && console_buffer
[0] == '-')) {
163 /* <CR> pressed as only input, don't modify current
164 * location and move to next. "-" pressed will go back.
167 addr
+= nbytes
? -1 : 1;
172 data
= eval_arg(console_buffer
, &endp
);
173 nbytes
= endp
- console_buffer
;
175 z80_bus_request_or_exit();
176 z80_write(addr
, data
);
177 z80_bus_cmd(Release
);
182 } while (nbytes
> 0);
185 return CMD_RET_SUCCESS
;
189 command_ret_t
do_mem_mm(cmd_tbl_t
*cmdtp
, uint_fast8_t flag
, int argc
, char * const argv
[])
191 return mod_mem (cmdtp
, 1, flag
, argc
, argv
);
193 command_ret_t
do_mem_nm(cmd_tbl_t
*cmdtp
, uint_fast8_t flag
, int argc
, char * const argv
[])
195 return mod_mem (cmdtp
, 0, flag
, argc
, argv
);
198 command_ret_t
do_mem_mw(cmd_tbl_t
*cmdtp
, uint_fast8_t flag
, int argc
, char * const argv
[])
203 uint_fast8_t width
= 1;
205 (void) cmdtp
; (void) flag
;
208 while ((opt
= getopt(argc
, argv
, PSTR("bwl"))) != -1) {
220 return CMD_RET_USAGE
;
224 /* remaining arguments */
226 if ((argc
< 2) || (argc
> 3))
227 return CMD_RET_USAGE
;
229 /* Address and value are specified since (adjusted) argc >= 2 */
230 addr
= eval_arg(argv
[optind
++], NULL
);
231 addr
+= base_address
;
232 writeval
= eval_arg(argv
[optind
++], NULL
);
236 count
= eval_arg(argv
[optind
], NULL
);
238 z80_bus_request_or_exit();
240 z80_memset(addr
, writeval
, count
);
243 z80_write_block((const uint8_t *) &writeval
, addr
, width
);
247 z80_bus_cmd(Release
);
249 return CMD_RET_SUCCESS
;
252 #ifdef CONFIG_MX_CYCLIC
253 command_ret_t
do_mem_mdc ( cmd_tbl_t
*cmdtp
, uint_fast8_t flag
, int argc
, char * const argv
[])
261 if (argv
[0][1] != 'd') {
263 while ((opt
= getopt(argc
, argv
, PSTR("bwl"))) != -1)
265 return CMD_RET_USAGE
;
269 if (argc
-optind
!= 4)
270 return CMD_RET_USAGE
;
272 count
= eval_arg(argv
[optind
+ 3], NULL
);
274 clear_ctrlc(); /* forget any previous Control C */
277 if (argv
[0][1] == 'd')
278 do_mem_md (NULL
, 0, argc
-1, argv
); /* memory display */
280 do_mem_mw (NULL
, 0, argc
-1, argv
); /* memory write */
283 /* delay for <count> ms... */
286 /* check for ctrl-c to abort... */
287 if (had_ctrlc() || ctrlc()) {
288 my_puts_P(PSTR("Abort\n"));
289 return CMD_RET_SUCCESS
;
291 } while (get_timer(ts
) < count
);
294 return CMD_RET_SUCCESS
;
296 #endif /* CONFIG_MX_CYCLIC */
298 command_ret_t
do_mem_cmp(cmd_tbl_t
*cmdtp
, uint_fast8_t flag
, int argc
, char * const argv
[])
300 uint32_t addr1
, addr2
, count
, ngood
;
301 command_ret_t rcode
= CMD_RET_SUCCESS
;
302 uint8_t byte1
, byte2
;
308 return CMD_RET_USAGE
;
311 addr1
= eval_arg(argv
[1], NULL
);
312 addr1
+= base_address
;
313 addr2
= eval_arg(argv
[2], NULL
);
314 addr2
+= base_address
;
315 count
= eval_arg(argv
[3], NULL
);
317 for (ngood
= 0; ngood
< count
; ++ngood
) {
318 if (!(z80_bus_cmd(Request
) & ZST_ACQUIRED
)) {
319 my_puts_P(PSTR("Bus timeout\n"));
320 rcode
= CMD_RET_FAILURE
;
323 byte1
= z80_read(addr1
);
324 byte2
= z80_read(addr2
);
325 z80_bus_cmd(Release
);
326 if (byte1
!= byte2
) {
327 printf_P(PSTR("byte at 0x%05lx (%#02x) != "
328 "byte at 0x%05lx (%#02x)\n"),
329 addr1
, byte1
, addr2
, byte2
);
330 rcode
= CMD_RET_FAILURE
;
336 /* check for ctrl-c to abort... */
338 my_puts_P(PSTR("Abort\n"));
339 return CMD_RET_SUCCESS
;
343 printf_P(PSTR("Total of %ld byte(s) (0x%lx) were the same\n"), ngood
, ngood
);
347 command_ret_t
do_mem_cp(cmd_tbl_t
*cmdtp
, uint_fast8_t flag
, int argc
, char * const argv
[])
349 uint32_t src
, dest
, count
;
356 return CMD_RET_USAGE
;
358 src
= eval_arg(argv
[1], NULL
);
360 dest
= eval_arg(argv
[2], NULL
);
361 dest
+= base_address
;
362 count
= eval_arg(argv
[3], NULL
);
365 my_puts_P(PSTR("Zero length?\n"));
366 return CMD_RET_FAILURE
;
376 while (count
-- > 0) {
378 z80_bus_request_or_exit();
379 data
= z80_read(src
);
380 z80_write(dest
, data
);
381 z80_bus_cmd(Release
);
385 /* check for ctrl-c to abort... */
387 my_puts_P(PSTR("Abort\n"));
388 return CMD_RET_SUCCESS
;
391 return CMD_RET_SUCCESS
;
394 command_ret_t
do_mem_base(cmd_tbl_t
*cmdtp
, uint_fast8_t flag
, int argc
,
401 /* Set new base address. */
402 base_address
= eval_arg(argv
[1], NULL
);
404 /* Print the current base address. */
405 printf_P(PSTR("Base Address: 0x%05lx\n"), base_address
);
406 return CMD_RET_SUCCESS
;
409 command_ret_t
do_mem_loop(cmd_tbl_t
*cmdtp
, uint_fast8_t flag
, int argc
,
412 uint32_t addr
, length
;
418 return CMD_RET_USAGE
;
420 /* Address is always specified. */
421 addr
= eval_arg(argv
[1], NULL
);
423 /* Length is the number of bytes. */
424 length
= eval_arg(argv
[2], NULL
);
427 /* We want to optimize the loops to run as fast as possible.
428 * If we have only one object, just run infinite loops.
431 z80_bus_request_or_exit();
437 z80_bus_request_or_exit();
446 return CMD_RET_SUCCESS
;
449 command_ret_t
do_mem_loopw (cmd_tbl_t
*cmdtp
, uint_fast8_t flag
, int argc
, char * const argv
[])
451 uint32_t addr
, length
;
458 return CMD_RET_USAGE
;
460 /* Address is always specified. */
461 addr
= eval_arg(argv
[1], NULL
);
463 /* Length is the number of bytes. */
464 length
= eval_arg(argv
[2], NULL
);
466 data
= eval_arg(argv
[3], NULL
);
469 * We want to optimize the loops to run as fast as possible.
470 * If we have only one object, just run infinite loops.
473 z80_bus_request_or_exit();
476 z80_write(addr
, data
);
479 z80_bus_request_or_exit();
485 z80_write(p
++, data
);
489 //#define CONFIG_SYS_ALT_MEMTEST
491 #ifdef CONFIG_CMD_MEMTEST
492 static uint32_t mem_test_alt(uint32_t start_addr
, uint32_t end_addr
)
498 uint32_t test_offset
;
500 uint8_t anti_pattern
;
504 static const FLASH
uint8_t bitpattern
[] = {
505 0x01, /* single bit */
506 0x03, /* two adjacent bits */
507 0x07, /* three adjacent bits */
508 0x0F, /* four adjacent bits */
509 0x05, /* two non-adjacent bits */
510 0x15, /* three non-adjacent bits */
511 0x55, /* four non-adjacent bits */
512 0xaa, /* alternating 1/0 */
516 * Data line test: write a pattern to the first
517 * location, write the 1's complement to a 'parking'
518 * address (changes the state of the data bus so a
519 * floating bus doesn't give a false OK), and then
520 * read the value back. Note that we read it back
521 * into a variable because the next time we read it,
522 * it might be right (been there, tough to explain to
523 * the quality guys why it prints a failure when the
524 * "is" and "should be" are obviously the same in the
527 * Rather than exhaustively testing, we test some
528 * patterns by shifting '1' bits through a field of
529 * '0's and '0' bits through a field of '1's (i.e.
530 * pattern and ~pattern).
533 dummy
= start_addr
+1;
534 for (unsigned int j
= 0; j
< ARRAY_SIZE(bitpattern
); j
++) {
535 pattern
= bitpattern
[j
];
536 for (; pattern
!= 0; pattern
<<= 1) {
537 anti_pattern
= ~pattern
;
538 z80_write(addr
, pattern
);
539 z80_write(dummy
, anti_pattern
); /* clear the test data off the bus */
540 temp
= z80_read(addr
);
541 if (temp
!= pattern
) {
542 printf_P(PSTR("FAILURE (data line): "
543 "expected %02x, actual %02x\n"),
547 z80_write(addr
, anti_pattern
);
548 z80_write(dummy
, pattern
); /* clear the test data off the bus */
549 temp
= z80_read(addr
);
550 if (temp
!= anti_pattern
) {
551 printf_P(PSTR("FAILURE (data line): "
552 "Is %02x, should be %02x\n"),
566 * Based on code whose Original Author and Copyright
567 * information follows: Copyright (c) 1998 by Michael
568 * Barr. This software is placed into the public
569 * domain and may be used for any purpose. However,
570 * this notice must not be changed or removed and no
571 * warranty is either expressed or implied by its
572 * publication or distribution.
578 * Description: Test the address bus wiring in a
579 * memory region by performing a walking
580 * 1's test on the relevant bits of the
581 * address and checking for aliasing.
582 * This test will find single-bit
583 * address failures such as stuck-high,
584 * stuck-low, and shorted pins. The base
585 * address and size of the region are
586 * selected by the caller.
588 * Notes: For best results, the selected base
589 * address should have enough LSB 0's to
590 * guarantee single address bit changes.
591 * For example, to test a 64-Kbyte
592 * region, select a base address on a
593 * 64-Kbyte boundary. Also, select the
594 * region size as a power-of-two if at
597 * Returns: 0 if the test succeeds, 1 if the test fails.
600 num_bytes
= (end_addr
- start_addr
) / sizeof(uint8_t);
605 // debug("## %s:%d: length = 0x%.5lx\n", __func__, __LINE__, num_bytes);
607 * Write the default pattern at each of the
608 * power-of-two offsets.
610 for (offset
= 1; offset
< num_bytes
; offset
<<= 1)
611 z80_write(addr
+offset
, pattern
);
614 * Check for address bits stuck high.
616 z80_write(start_addr
, anti_pattern
);
618 for (offset
= 1; offset
< num_bytes
; offset
<<= 1) {
619 temp
= z80_read(start_addr
+ offset
);
620 if (temp
!= pattern
) {
621 printf_P(PSTR("FAILURE: Address bit stuck high @ 0x%.5lx:"
622 " expected 0x%.2x, actual 0x%.2x\n"),
623 start_addr
+ offset
, pattern
, temp
);
629 z80_write(start_addr
, pattern
);
632 * Check for addr bits stuck low or shorted.
634 for (test_offset
= 1; test_offset
< num_bytes
; test_offset
<<= 1) {
635 z80_write(start_addr
+ test_offset
, anti_pattern
);
637 for (offset
= 1; offset
< num_bytes
; offset
<<= 1) {
638 temp
= z80_read(start_addr
+ offset
);
639 if ((temp
!= pattern
) && (offset
!= test_offset
)) {
640 printf_P(PSTR("FAILURE: Address bit stuck low or shorted"
641 " @ 0x%.5lx: expected 0x%.2x, actual 0x%.2x\n"),
642 start_addr
+ offset
, pattern
, temp
);
648 z80_write(start_addr
+ test_offset
, pattern
);
655 * Description: Test the integrity of a physical
656 * memory device by performing an
657 * increment/decrement test over the
658 * entire region. In the process every
659 * storage bit in the device is tested
660 * as a zero and a one. The base address
661 * and the size of the region are
662 * selected by the caller.
664 * Returns: 0 if the test succeeds, 1 if the test fails.
669 * Fill memory with a known pattern.
671 for (pattern
= 1, addr
= start_addr
; addr
<= end_addr
; pattern
++, addr
++)
672 z80_write(addr
, pattern
);
675 * Check each location and invert it for the second pass.
677 for (pattern
= 1, addr
= start_addr
; addr
<= end_addr
; pattern
++, addr
++) {
678 temp
= z80_read(addr
);
679 if (temp
!= pattern
) {
680 printf_P(PSTR("FAILURE (read/write) @ 0x%.5lx:"
681 " expected 0x%.2x, actual 0x%.2x)\n"),
682 addr
, pattern
, temp
);
688 anti_pattern
= ~pattern
;
689 z80_write(addr
, anti_pattern
);
693 * Check each location for the inverted pattern and zero it.
695 for (pattern
= 1, addr
= start_addr
; addr
<= end_addr
; pattern
++, addr
++) {
696 anti_pattern
= ~pattern
;
697 temp
= z80_read(addr
);
698 if (temp
!= anti_pattern
) {
699 printf_P(PSTR("FAILURE (read/write) @ 0x%.5lx:"
700 " expected 0x%.2x, actual 0x%.2x)\n"),
701 start_addr
, anti_pattern
, temp
);
713 * Perform a memory test. A more complete alternative test can be
714 * configured using CONFIG_SYS_ALT_MEMTEST. The complete test loops until
715 * interrupted by ctrl-c or by a failure of one of the sub-tests.
717 command_ret_t
do_mem_mtest(cmd_tbl_t
*cmdtp
, uint_fast8_t flag
, int argc
,
722 unsigned int iteration_limit
= 0;
723 unsigned int iteration
;
724 uint32_t errs
= 0; /* number of errors */
731 start
= eval_arg(argv
[1], NULL
);
734 end
= eval_arg(argv
[2], NULL
);
736 end
= CONFIG_SYS_RAMSIZE_MAX
- 1;
739 iteration_limit
= (unsigned int) eval_arg(argv
[3], NULL
);
741 printf_P(PSTR("Testing %05lx ... %05lx:\n"), start
, end
);
742 // debug("## %s:%d: start %#05lx end %#05lx\n", __func__, __LINE__, start, end);
744 clear_ctrlc(); /* forget any previous Control C */
747 !iteration_limit
|| iteration
< iteration_limit
;
750 printf_P(PSTR("Iteration: %6d\r"), iteration
+ 1);
753 z80_bus_request_or_exit();
754 errs
+= mem_test_alt(start
, end
);
755 z80_bus_cmd(Release
);
757 if (had_ctrlc() || ctrlc()) {
763 /* Memory test was aborted - write a newline to finish off */
765 ret
= CMD_RET_FAILURE
;
767 printf_P(PSTR("Tested %d iteration(s) with %lu errors.\n"),
769 ret
= errs
? CMD_RET_FAILURE
: CMD_RET_SUCCESS
;
774 #endif /* CONFIG_CMD_MEMTEST */