124 lines
2.6 KiB
C
124 lines
2.6 KiB
C
/* Copyright 2014-2016 IBM Corp.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
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* implied.
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* See the License for the specific language governing permissions and
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* imitations under the License.
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <getopt.h>
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#include <stdint.h>
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#include <stdbool.h>
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#include <inttypes.h>
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#include "xscom.h"
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static void print_usage(int code)
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{
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printf("usage: putscom [-c|--chip chip-id] [-b|--list-bits] addr value\n");
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printf(" putscom -v|--version\n");
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printf("\n");
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printf(" NB: --list-bits shows which PPC bits are set\n");
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exit(code);
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exit(code);
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}
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extern const char version[];
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int main(int argc, char *argv[])
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{
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uint64_t val = -1ull, addr = -1ull;
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uint32_t def_chip, chip_id = 0xffffffff;
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bool got_addr = false, got_val = false;
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bool list_bits = false;
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int rc;
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while(1) {
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static struct option long_opts[] = {
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{"chip", required_argument, NULL, 'c'},
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{"help", no_argument, NULL, 'h'},
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{"version", no_argument, NULL, 'v'},
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};
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int c, oidx = 0;
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c = getopt_long(argc, argv, "-c:bhv", long_opts, &oidx);
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if (c == EOF)
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break;
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switch(c) {
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case 1:
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if (!got_addr) {
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addr = strtoull(optarg, NULL, 16);
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got_addr = true;
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break;
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}
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val = strtoull(optarg, NULL, 16);
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got_val = true;
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break;
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case 'c':
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chip_id = strtoul(optarg, NULL, 16);
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break;
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case 'b':
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list_bits = true;
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break;
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case 'v':
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printf("xscom utils version %s\n", version);
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exit(0);
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case 'h':
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print_usage(0);
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break;
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default:
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exit(1);
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}
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}
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if (!got_addr || !got_val) {
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fprintf(stderr, "Invalid or missing address/value\n");
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print_usage(1);
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}
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def_chip = xscom_init();
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if (def_chip == 0xffffffff) {
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fprintf(stderr, "No valid XSCOM chip found\n");
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exit(1);
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}
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if (chip_id == 0xffffffff)
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chip_id = def_chip;
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rc = xscom_write(chip_id, addr, val);
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if (rc) {
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fprintf(stderr,"Error %d writing XSCOM\n", rc);
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exit(1);
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}
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if (xscom_readable(addr)) {
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rc = xscom_read(chip_id, addr, &val);
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if (rc) {
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fprintf(stderr,"Error %d reading XSCOM\n", rc);
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exit(1);
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}
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}
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printf("%016" PRIx64, val);
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if (list_bits) {
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int i;
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printf(" - set: ");
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for (i = 0; i < 64; i++)
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if (val & PPC_BIT(i))
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printf("%d ", i);
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}
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putchar('\n');
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return 0;
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}
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