]>
cloudbase.mooo.com Git - z180-stamp.git/blob - avr/cmd_mem.c
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
;
211 while ((opt
= getopt(argc
, argv
, PSTR("bwl"))) != -1) {
223 return CMD_RET_USAGE
;
227 /* remaining arguments */
229 if ((argc
< 2) || (argc
> 3))
230 return CMD_RET_USAGE
;
232 /* Address and value are specified since (adjusted) argc >= 2 */
233 addr
= eval_arg(argv
[optind
++], NULL
);
234 addr
+= base_address
;
235 writeval
= eval_arg(argv
[optind
++], NULL
);
239 count
= eval_arg(argv
[optind
], NULL
);
241 z80_bus_request_or_exit();
243 z80_memset(addr
, writeval
, count
);
246 z80_write_block((const uint8_t *) &writeval
, addr
, width
);
250 z80_bus_cmd(Release
);
252 return CMD_RET_SUCCESS
;
255 #ifdef CONFIG_MX_CYCLIC
256 command_ret_t
do_mem_mdc ( cmd_tbl_t
*cmdtp
, uint_fast8_t flag
, int argc
, char * const argv
[])
265 if (argv
[0][1] != 'd') {
267 while ((opt
= getopt(argc
, argv
, PSTR("bwl"))) != -1)
269 return CMD_RET_USAGE
;
273 if (argc
-optind
!= 4)
274 return CMD_RET_USAGE
;
276 count
= eval_arg(argv
[optind
+ 3], NULL
);
278 clear_ctrlc(); /* forget any previous Control C */
281 if (argv
[0][1] == 'd')
282 do_mem_md (NULL
, 0, argc
-1, argv
); /* memory display */
284 do_mem_mw (NULL
, 0, argc
-1, argv
); /* memory write */
287 /* delay for <count> ms... */
290 /* check for ctrl-c to abort... */
291 if (had_ctrlc() || ctrlc()) {
292 my_puts_P(PSTR("Abort\n"));
293 return CMD_RET_SUCCESS
;
295 } while (get_timer(ts
) < count
);
298 return CMD_RET_SUCCESS
;
300 #endif /* CONFIG_MX_CYCLIC */
302 command_ret_t
do_mem_cmp(cmd_tbl_t
*cmdtp
, uint_fast8_t flag
, int argc
, char * const argv
[])
304 uint32_t addr1
, addr2
, count
, ngood
;
305 command_ret_t rcode
= CMD_RET_SUCCESS
;
306 uint8_t byte1
, byte2
;
312 return CMD_RET_USAGE
;
315 addr1
= eval_arg(argv
[1], NULL
);
316 addr1
+= base_address
;
317 addr2
= eval_arg(argv
[2], NULL
);
318 addr2
+= base_address
;
319 count
= eval_arg(argv
[3], NULL
);
321 for (ngood
= 0; ngood
< count
; ++ngood
) {
322 if (!(z80_bus_cmd(Request
) & ZST_ACQUIRED
)) {
323 my_puts_P(PSTR("Bus timeout\n"));
324 rcode
= CMD_RET_FAILURE
;
327 byte1
= z80_read(addr1
);
328 byte2
= z80_read(addr2
);
329 z80_bus_cmd(Release
);
330 if (byte1
!= byte2
) {
331 printf_P(PSTR("byte at 0x%05lx (%#02x) != "
332 "byte at 0x%05lx (%#02x)\n"),
333 addr1
, byte1
, addr2
, byte2
);
334 rcode
= CMD_RET_FAILURE
;
340 /* check for ctrl-c to abort... */
342 my_puts_P(PSTR("Abort\n"));
343 return CMD_RET_SUCCESS
;
347 printf_P(PSTR("Total of %ld byte(s) (0x%lx) were the same\n"), ngood
, ngood
);
351 command_ret_t
do_mem_cp(cmd_tbl_t
*cmdtp
, uint_fast8_t flag
, int argc
, char * const argv
[])
353 uint32_t src
, dest
, count
;
360 return CMD_RET_USAGE
;
362 src
= eval_arg(argv
[1], NULL
);
364 dest
= eval_arg(argv
[2], NULL
);
365 dest
+= base_address
;
366 count
= eval_arg(argv
[3], NULL
);
369 my_puts_P(PSTR("Zero length?\n"));
370 return CMD_RET_FAILURE
;
380 while (count
-- > 0) {
382 z80_bus_request_or_exit();
383 data
= z80_read(src
);
384 z80_write(dest
, data
);
385 z80_bus_cmd(Release
);
389 /* check for ctrl-c to abort... */
391 my_puts_P(PSTR("Abort\n"));
392 return CMD_RET_SUCCESS
;
395 return CMD_RET_SUCCESS
;
398 command_ret_t
do_mem_base(cmd_tbl_t
*cmdtp
, uint_fast8_t flag
, int argc
,
405 /* Set new base address. */
406 base_address
= eval_arg(argv
[1], NULL
);
408 /* Print the current base address. */
409 printf_P(PSTR("Base Address: 0x%05lx\n"), base_address
);
410 return CMD_RET_SUCCESS
;
413 command_ret_t
do_mem_loop(cmd_tbl_t
*cmdtp
, uint_fast8_t flag
, int argc
,
416 uint32_t addr
, length
;
422 return CMD_RET_USAGE
;
424 /* Address is always specified. */
425 addr
= eval_arg(argv
[1], NULL
);
427 /* Length is the number of bytes. */
428 length
= eval_arg(argv
[2], NULL
);
431 /* We want to optimize the loops to run as fast as possible.
432 * If we have only one object, just run infinite loops.
435 z80_bus_request_or_exit();
441 z80_bus_request_or_exit();
450 return CMD_RET_SUCCESS
;
453 command_ret_t
do_mem_loopw (cmd_tbl_t
*cmdtp
, uint_fast8_t flag
, int argc
, char * const argv
[])
455 uint32_t addr
, length
;
462 return CMD_RET_USAGE
;
464 /* Address is always specified. */
465 addr
= eval_arg(argv
[1], NULL
);
467 /* Length is the number of bytes. */
468 length
= eval_arg(argv
[2], NULL
);
470 data
= eval_arg(argv
[3], NULL
);
473 * We want to optimize the loops to run as fast as possible.
474 * If we have only one object, just run infinite loops.
477 z80_bus_request_or_exit();
480 z80_write(addr
, data
);
483 z80_bus_request_or_exit();
489 z80_write(p
++, data
);
493 //#define CONFIG_SYS_ALT_MEMTEST
495 #ifdef CONFIG_CMD_MEMTEST
496 static uint32_t mem_test_alt(uint32_t start_addr
, uint32_t end_addr
)
502 uint32_t test_offset
;
504 uint8_t anti_pattern
;
508 static const FLASH
uint8_t bitpattern
[] = {
509 0x01, /* single bit */
510 0x03, /* two adjacent bits */
511 0x07, /* three adjacent bits */
512 0x0F, /* four adjacent bits */
513 0x05, /* two non-adjacent bits */
514 0x15, /* three non-adjacent bits */
515 0x55, /* four non-adjacent bits */
516 0xaa, /* alternating 1/0 */
520 * Data line test: write a pattern to the first
521 * location, write the 1's complement to a 'parking'
522 * address (changes the state of the data bus so a
523 * floating bus doesn't give a false OK), and then
524 * read the value back. Note that we read it back
525 * into a variable because the next time we read it,
526 * it might be right (been there, tough to explain to
527 * the quality guys why it prints a failure when the
528 * "is" and "should be" are obviously the same in the
531 * Rather than exhaustively testing, we test some
532 * patterns by shifting '1' bits through a field of
533 * '0's and '0' bits through a field of '1's (i.e.
534 * pattern and ~pattern).
537 dummy
= start_addr
+1;
538 for (unsigned int j
= 0; j
< ARRAY_SIZE(bitpattern
); j
++) {
539 pattern
= bitpattern
[j
];
540 for (; pattern
!= 0; pattern
<<= 1) {
541 anti_pattern
= ~pattern
;
542 z80_write(addr
, pattern
);
543 z80_write(dummy
, anti_pattern
); /* clear the test data off the bus */
544 temp
= z80_read(addr
);
545 if (temp
!= pattern
) {
546 printf_P(PSTR("FAILURE (data line): "
547 "expected %02x, actual %02x\n"),
551 z80_write(addr
, anti_pattern
);
552 z80_write(dummy
, pattern
); /* clear the test data off the bus */
553 temp
= z80_read(addr
);
554 if (temp
!= anti_pattern
) {
555 printf_P(PSTR("FAILURE (data line): "
556 "Is %02x, should be %02x\n"),
570 * Based on code whose Original Author and Copyright
571 * information follows: Copyright (c) 1998 by Michael
572 * Barr. This software is placed into the public
573 * domain and may be used for any purpose. However,
574 * this notice must not be changed or removed and no
575 * warranty is either expressed or implied by its
576 * publication or distribution.
582 * Description: Test the address bus wiring in a
583 * memory region by performing a walking
584 * 1's test on the relevant bits of the
585 * address and checking for aliasing.
586 * This test will find single-bit
587 * address failures such as stuck-high,
588 * stuck-low, and shorted pins. The base
589 * address and size of the region are
590 * selected by the caller.
592 * Notes: For best results, the selected base
593 * address should have enough LSB 0's to
594 * guarantee single address bit changes.
595 * For example, to test a 64-Kbyte
596 * region, select a base address on a
597 * 64-Kbyte boundary. Also, select the
598 * region size as a power-of-two if at
601 * Returns: 0 if the test succeeds, 1 if the test fails.
604 num_bytes
= (end_addr
- start_addr
) / sizeof(uint8_t);
609 // debug("## %s:%d: length = 0x%.5lx\n", __func__, __LINE__, num_bytes);
611 * Write the default pattern at each of the
612 * power-of-two offsets.
614 for (offset
= 1; offset
< num_bytes
; offset
<<= 1)
615 z80_write(addr
+offset
, pattern
);
618 * Check for address bits stuck high.
620 z80_write(start_addr
, anti_pattern
);
622 for (offset
= 1; offset
< num_bytes
; offset
<<= 1) {
623 temp
= z80_read(start_addr
+ offset
);
624 if (temp
!= pattern
) {
625 printf_P(PSTR("FAILURE: Address bit stuck high @ 0x%.5lx:"
626 " expected 0x%.2x, actual 0x%.2x\n"),
627 start_addr
+ offset
, pattern
, temp
);
633 z80_write(start_addr
, pattern
);
636 * Check for addr bits stuck low or shorted.
638 for (test_offset
= 1; test_offset
< num_bytes
; test_offset
<<= 1) {
639 z80_write(start_addr
+ test_offset
, anti_pattern
);
641 for (offset
= 1; offset
< num_bytes
; offset
<<= 1) {
642 temp
= z80_read(start_addr
+ offset
);
643 if ((temp
!= pattern
) && (offset
!= test_offset
)) {
644 printf_P(PSTR("FAILURE: Address bit stuck low or shorted"
645 " @ 0x%.5lx: expected 0x%.2x, actual 0x%.2x\n"),
646 start_addr
+ offset
, pattern
, temp
);
652 z80_write(start_addr
+ test_offset
, pattern
);
659 * Description: Test the integrity of a physical
660 * memory device by performing an
661 * increment/decrement test over the
662 * entire region. In the process every
663 * storage bit in the device is tested
664 * as a zero and a one. The base address
665 * and the size of the region are
666 * selected by the caller.
668 * Returns: 0 if the test succeeds, 1 if the test fails.
673 * Fill memory with a known pattern.
675 for (pattern
= 1, addr
= start_addr
; addr
<= end_addr
; pattern
++, addr
++)
676 z80_write(addr
, pattern
);
679 * Check each location and invert it for the second pass.
681 for (pattern
= 1, addr
= start_addr
; addr
<= end_addr
; pattern
++, addr
++) {
682 temp
= z80_read(addr
);
683 if (temp
!= pattern
) {
684 printf_P(PSTR("FAILURE (read/write) @ 0x%.5lx:"
685 " expected 0x%.2x, actual 0x%.2x)\n"),
686 addr
, pattern
, temp
);
692 anti_pattern
= ~pattern
;
693 z80_write(addr
, anti_pattern
);
697 * Check each location for the inverted pattern and zero it.
699 for (pattern
= 1, addr
= start_addr
; addr
<= end_addr
; pattern
++, addr
++) {
700 anti_pattern
= ~pattern
;
701 temp
= z80_read(addr
);
702 if (temp
!= anti_pattern
) {
703 printf_P(PSTR("FAILURE (read/write) @ 0x%.5lx:"
704 " expected 0x%.2x, actual 0x%.2x)\n"),
705 start_addr
, anti_pattern
, temp
);
717 * Perform a memory test. A more complete alternative test can be
718 * configured using CONFIG_SYS_ALT_MEMTEST. The complete test loops until
719 * interrupted by ctrl-c or by a failure of one of the sub-tests.
721 command_ret_t
do_mem_mtest(cmd_tbl_t
*cmdtp
, uint_fast8_t flag
, int argc
,
726 unsigned int iteration_limit
= 0;
727 unsigned int iteration
;
728 uint32_t errs
= 0; /* number of errors */
735 start
= eval_arg(argv
[1], NULL
);
738 end
= eval_arg(argv
[2], NULL
);
740 end
= CONFIG_SYS_RAMSIZE_MAX
- 1;
743 iteration_limit
= (unsigned int) eval_arg(argv
[3], NULL
);
745 printf_P(PSTR("Testing %05lx ... %05lx:\n"), start
, end
);
746 // debug("## %s:%d: start %#05lx end %#05lx\n", __func__, __LINE__, start, end);
748 clear_ctrlc(); /* forget any previous Control C */
751 !iteration_limit
|| iteration
< iteration_limit
;
754 printf_P(PSTR("Iteration: %6d\r"), iteration
+ 1);
757 z80_bus_request_or_exit();
758 errs
+= mem_test_alt(start
, end
);
759 z80_bus_cmd(Release
);
761 if (had_ctrlc() || ctrlc()) {
767 /* Memory test was aborted - write a newline to finish off */
769 ret
= CMD_RET_FAILURE
;
771 printf_P(PSTR("Tested %d iteration(s) with %lu errors.\n"),
773 ret
= errs
? CMD_RET_FAILURE
: CMD_RET_SUCCESS
;
778 #endif /* CONFIG_CMD_MEMTEST */