141 lines
3.1 KiB
C
141 lines
3.1 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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#include "sram.h"
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static void print_usage(int code)
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{
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printf("usage: getsram [opts] addr\n");
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printf(" -c|--chip <chip-id>\n");
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printf(" -l|--length <size to read>\n");
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printf(" -n|--occ-channel <chan>\n");
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printf(" -f|--file <filename>\n");
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printf(" -v|--version\n");
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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, addr = -1ull, length = 8;
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uint32_t def_chip, chip_id = 0xffffffff;
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int rc;
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int occ_channel = 0;
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char *filename = NULL;
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FILE *f = stdout;
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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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{"occ-channel", required_argument, NULL, 'n'},
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{"help", no_argument, NULL, 'h'},
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{"version", no_argument, NULL, 'v'},
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{"length", required_argument, NULL, 'l'},
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{"file", required_argument, NULL, 'f'},
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};
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int c, oidx = 0;
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c = getopt_long(argc, argv, "-c:n:hl:vf:", 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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addr = strtoull(optarg, NULL, 16);
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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 'n':
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occ_channel = strtoul(optarg, NULL, 0);
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if (occ_channel < 0 || occ_channel > 3) {
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fprintf(stderr, "occ-channel out of range 0 <= c <= 3\n");
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exit(1);
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}
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break;
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case 'h':
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print_usage(0);
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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 'f':
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filename = optarg;
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break;
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case 'l':
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length = strtoul(optarg, NULL, 0);
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length = (length + 7) & ~0x7; /* round up to an eight byte interval */
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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 (addr == -1ull) {
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fprintf(stderr, "Invalid or missing address\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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if (filename) {
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f = fopen(filename, "wb");
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if (!f) {
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fprintf(stderr, "unable to open %s for writing\n", filename);
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exit(1);
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}
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}
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rc = 0;
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while (length) {
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rc = sram_read(chip_id, occ_channel, addr, &val);
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if (rc)
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break;
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if (f) {
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int i;
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/* make sure we write it out big endian */
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for (i = 1; i <= 8; i++)
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fputc((val >> (64 - i * 8)) & 0xff, f);
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} else {
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printf("OCC%d: %" PRIx64 "\n", occ_channel, val);
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}
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length -= 8;
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addr += 8;
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}
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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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return 0;
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}
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