FreeCalypso > hg > freecalypso-tools

annotate target-utils/loadagent/binload.c @ 1011:6d9b10633f10 default tip

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etmsync Pirelli IMEI retrieval: fix poor use of printf() Bug reported by Vadim Yanitskiy <fixeria@osmocom.org>: the construct where a static-allocated string was passed to printf() without any format arguments causes newer compilers to report a security problem. Given that formatted output is not needed here, just fixed string output, change printf() to fputs(), and direct the error message to stderr while at it.
author Mychaela Falconia <falcon@freecalypso.org>
date Thu, 23 May 2024 17:29:57 +0000
parents 3229940734e5
children
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3229940734e5 loadagent: binary memload command implemented
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1 /*
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2 * Here we are going to implement our new binary protocol for RAM loading
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3 * for a faster version of fc-xram.
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4 */
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5
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6 #include "types.h"
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7
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8 void
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9 cmd_binary_memload()
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10 {
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11 int state, recptr, extlen, datalen;
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12 u8 record[256], cksum;
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13 u32 addr;
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14 u16 rec_count;
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15 int c, i;
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16
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17 rec_count = 0;
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18 for (state = 0; ; ) {
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19 switch (state) {
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20 case 0:
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21 c = serial_in_timeout(3000000); /* 1.8 s */
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22 if (c < 0 || c == 0x04)
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23 return;
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24 if (c == 0x05) {
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25 serial_out(0x06); /* ACK */
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26 serial_out(rec_count >> 8);
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27 serial_out(rec_count);
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28 continue;
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29 }
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30 if (c >= 6) {
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31 record[0] = c;
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32 extlen = c + 1;
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33 datalen = c - 5;
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34 recptr = 1;
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35 state = 1;
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36 continue;
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37 }
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38 serial_out(0x15); /* NAK */
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39 state = 2;
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40 continue;
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41 case 1:
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42 c = serial_in_timeout(1000000); /* 0.6 s */
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43 if (c < 0) {
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44 serial_out(0x15); /* NAK */
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45 state = 2;
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46 continue;
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47 }
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48 record[recptr++] = c;
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49 if (recptr < extlen)
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50 continue;
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51 /* verify checksum */
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52 cksum = 0;
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53 for (i = 0; i < extlen; i++)
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54 cksum += record[i];
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55 if (cksum != 0xFF) {
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56 serial_out(0x15); /* NAK */
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57 state = 2;
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58 continue;
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59 }
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60 addr = ((u32)record[1] << 24) |
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61 ((u32)record[2] << 16) |
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62 ((u32)record[3] << 8) |
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63 (u32)record[4];
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64 memcpy(addr, record + 5, datalen);
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65 rec_count++;
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66 state = 0;
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67 continue;
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68 default:
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69 c = serial_in_timeout(10000000); /* 6.15 s */
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70 if (c < 0)
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71 return;
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72 serial_out_if_empty(0x15); /* NAK */
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73 continue;
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74 }
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75 }
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76 }