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annotate loadtools/chainload.c @ 55:278052b6afda

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loadtools: started laying the foundation for flash support
author Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
date Sun, 23 Jun 2013 20:13:59 +0000
parents 604648026e9c
children 771d9fda7630
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42
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1 /*
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2 * This module implements the chain-loading of XRAM images via loadagent.
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3 */
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4
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5 #include <sys/types.h>
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6 #include <stdint.h>
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7 #include <stdio.h>
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8 #include <stdlib.h>
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9 #include <string.h>
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10 #include <strings.h>
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11 #include "srecreader.h"
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12
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13 struct srecreader xramimage;
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14
53
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15 extern struct baudrate *current_baud_rate;
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16 extern struct baudrate *xram_run_baudrate;
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17
42
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18 static void
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19 make_ml_arg(rec, buf)
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20 u_char *rec;
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21 char *buf;
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22 {
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23 register int i, len;
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24 register char *s;
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25
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26 len = rec[0] + 1;
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27 s = buf;
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28 for (i = 0; i < len; i++) {
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29 sprintf(s, "%02X", rec[i]);
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30 s += 2;
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31 }
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32 *s = '\0';
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33 }
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34
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35 perform_chain_load()
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36 {
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37 int resp;
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38 unsigned long rec_count;
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39 char *argv[3], srecarg[516];
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40
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41 if (open_srec_file(&xramimage) < 0)
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42 exit(1);
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43 argv[0] = "ML";
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44 argv[1] = srecarg;
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45 argv[2] = 0;
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46 for (rec_count = 0; ; ) {
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47 if (read_s_record(&xramimage) < 0)
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48 exit(1);
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49 switch (xramimage.record_type) {
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50 case '0':
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51 if (xramimage.lineno == 1)
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52 continue;
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53 fprintf(stderr,
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54 "%s: S0 record found in line %d (expected in line 1 only)\n",
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55 xramimage.filename, xramimage.lineno);
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56 exit(1);
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57 case '3':
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58 case '7':
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59 if (s3s7_get_addr_data(&xramimage) < 0)
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60 exit(1);
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61 break;
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62 default:
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63 fprintf(stderr,
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64 "%s line %d: S%c record type not supported\n",
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65 xramimage.filename, xramimage.lineno,
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66 xramimage.record_type);
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67 exit(1);
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68 }
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69 if (xramimage.record_type == '7')
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70 break;
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71 /* must be S3 */
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72 if (xramimage.datalen < 1) {
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73 fprintf(stderr,
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74 "%s line %d: S3 record has zero data length\n",
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75 xramimage.filename, xramimage.lineno);
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76 exit(1);
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77 }
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78 make_ml_arg(xramimage.record, srecarg);
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79 tpinterf_make_cmd(argv);
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80 if (tpinterf_send_cmd())
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81 exit(1);
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82 if (tpinterf_pass_output(1))
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83 exit(1);
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84 putchar('.');
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85 fflush(stdout);
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86 rec_count++;
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87 }
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88 /* got S7 */
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89 fclose(xramimage.openfile);
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90 if (!rec_count) {
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91 fprintf(stderr,
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92 "%s line %d: S7 without any preceding S3 data records\n",
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93 xramimage.filename, xramimage.lineno);
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94 exit(1);
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95 }
53
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96 if (xram_run_baudrate != current_baud_rate) {
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97 resp = loadagent_switch_baud(xram_run_baudrate);
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98 if (resp)
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99 exit(1);
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100 }
44
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101 printf("Sending jump command\n");
42
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102 sprintf(srecarg, "%lX", (u_long) xramimage.addr);
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103 argv[0] = "jump";
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104 tpinterf_make_cmd(argv);
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105 if (tpinterf_send_cmd())
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106 exit(1);
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107 printf("Sent \"%s %s\": XRAM image should now be running!\n",
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108 argv[0], argv[1]);
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109 return(0);
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110 }