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// SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later
/*
* getscom
*
* Copyright 2014-2017 IBM Corp.
*/
#include <stdio.h>
#include <stdlib.h>
#include <getopt.h>
#include <stdint.h>
#include <stdbool.h>
#include <inttypes.h>
#include "xscom.h"
static void print_usage(int code)
{
printf("usage: putscom [-c|--chip chip-id] [-b|--list-bits] addr value\n");
printf(" putscom -v|--version\n");
printf("\n");
printf(" NB: --list-bits shows which PPC bits are set\n");
exit(code);
exit(code);
}
extern const char version[];
int main(int argc, char *argv[])
{
uint64_t val = -1ull, addr = -1ull;
uint32_t def_chip, chip_id = 0xffffffff;
bool got_addr = false, got_val = false;
bool list_bits = false;
int rc;
while(1) {
static struct option long_opts[] = {
{"chip", required_argument, NULL, 'c'},
{"help", no_argument, NULL, 'h'},
{"version", no_argument, NULL, 'v'},
};
int c, oidx = 0;
c = getopt_long(argc, argv, "-c:bhv", long_opts, &oidx);
if (c == EOF)
break;
switch(c) {
case 1:
if (!got_addr) {
addr = strtoull(optarg, NULL, 16);
got_addr = true;
break;
}
val = strtoull(optarg, NULL, 16);
got_val = true;
break;
case 'c':
chip_id = strtoul(optarg, NULL, 16);
break;
case 'b':
list_bits = true;
break;
case 'v':
printf("xscom utils version %s\n", version);
exit(0);
case 'h':
print_usage(0);
break;
default:
exit(1);
}
}
if (!got_addr || !got_val) {
fprintf(stderr, "Invalid or missing address/value\n");
print_usage(1);
}
def_chip = xscom_init();
if (def_chip == 0xffffffff) {
fprintf(stderr, "No valid XSCOM chip found\n");
exit(1);
}
if (chip_id == 0xffffffff)
chip_id = def_chip;
rc = xscom_write(chip_id, addr, val);
if (rc) {
fprintf(stderr,"Error %d writing XSCOM\n", rc);
exit(1);
}
if (xscom_readable(addr)) {
rc = xscom_read(chip_id, addr, &val);
if (rc) {
fprintf(stderr,"Error %d reading XSCOM\n", rc);
exit(1);
}
}
printf("%016" PRIx64, val);
if (list_bits) {
int i;
printf(" - set: ");
for (i = 0; i < 64; i++)
if (val & PPC_BIT(i))
printf("%d ", i);
}
putchar('\n');
return 0;
}
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