FreeCalypso > hg > freecalypso-tools
annotate loadtools/compalload.c @ 802:1c599681fd60
pcm-sms-decode & sms-pdu-decode: revamp bad char decoding
author | Mychaela Falconia <falcon@freecalypso.org> |
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date | Thu, 25 Mar 2021 02:58:30 +0000 |
parents | 8c011177adb9 |
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rev | line source |
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1 /* |
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2 * This module implements Compal's serial code loading protocol to load |
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3 * what we call compalstage, a piece of code that re-enables the Calypso |
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4 * boot ROM and allows us to use the same loadagent which we use on |
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5 * freedom-enabled target devices. |
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6 */ |
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7 |
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8 #include <sys/param.h> |
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9 #include <sys/file.h> |
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10 #include <sys/stat.h> |
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11 #include <sys/ioctl.h> |
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12 #include <stdio.h> |
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13 #include <stdlib.h> |
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14 #include <string.h> |
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15 #include <strings.h> |
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16 #include <unistd.h> |
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17 |
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18 extern char default_compalstage_dir[]; |
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19 extern char *target_ttydev; |
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20 extern int target_fd; |
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21 |
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22 static char compalstage_pathname[MAXPATHLEN]; |
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23 static u_char *compalstage_imgbuf; |
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24 static size_t compalstage_len, compalstage_totlen; |
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25 static int rx_state; |
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26 static u_char rx_msg[3]; |
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27 |
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28 void |
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29 set_compalstage_short(arg) |
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30 char *arg; |
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31 { |
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32 if (strcmp(arg, "none")) |
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33 sprintf(compalstage_pathname, "%s/compalstage-%s.bin", |
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34 default_compalstage_dir, arg); |
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35 else |
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36 compalstage_pathname[0] = 0; |
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37 } |
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38 |
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39 void |
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40 set_compalstage_fullpath(arg) |
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41 char *arg; |
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42 { |
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43 strcpy(compalstage_pathname, arg); |
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44 } |
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45 |
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46 static void |
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47 compute_checksum() |
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48 { |
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49 size_t i, l; |
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50 u_char ck; |
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51 |
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52 ck = 0x02; |
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53 l = compalstage_len + 3; |
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54 for (i = 1; i < l; i++) |
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55 ck ^= compalstage_imgbuf[i]; |
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56 compalstage_imgbuf[l] = ck; |
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57 } |
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58 |
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59 static |
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60 handle_rx_msg() |
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61 { |
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62 static u_char download_cmd[7] = {0x1B, 0xF6, 0x02, 0x00, |
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63 0x52, 0x01, 0x53}; |
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64 |
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65 if (rx_msg[0] == 0x41 && rx_msg[1] == 0x01 && rx_msg[2] == 0x40) { |
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66 printf("Received PROMPT1, sending download command\n"); |
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67 write(target_fd, download_cmd, 7); |
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68 return(0); |
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69 } else if (rx_msg[0] == 0x41 && rx_msg[1] == 0x02 && rx_msg[2] == 0x43){ |
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70 printf("Received PROMPT2, sending download image\n"); |
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71 write(target_fd, compalstage_imgbuf, compalstage_totlen); |
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72 return(0); |
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73 } else if (rx_msg[0] == 0x41 && rx_msg[1] == 0x03 && rx_msg[2] == 0x42){ |
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74 printf("Received ACK; downloaded image should now be running!\n"); |
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75 return(1); |
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76 } else if (rx_msg[0] == 0x45 && rx_msg[1] == 0x53 && rx_msg[2] == 0x16){ |
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77 printf("Bootloader indicates bad checksum :-(\n"); |
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78 return(0); |
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79 } else if (rx_msg[0] == 0x41 && rx_msg[1] == 0x03 && rx_msg[2] == 0x57){ |
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80 printf("Bootloader indicates bad magic :-(\n"); |
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81 return(0); |
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82 } else { |
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83 printf("Unknown msg from bootloader: 1B F6 02 00 %02X %02X %02X\n", |
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84 rx_msg[0], rx_msg[1], rx_msg[2]); |
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85 return(0); |
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86 } |
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87 } |
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88 |
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89 static |
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90 handle_rx_byte(rxb) |
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91 { |
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92 switch (rx_state) { |
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93 case 0: |
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94 if (rxb == 0x1B) |
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95 rx_state = 1; |
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96 return(0); |
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97 case 1: |
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98 if (rxb == 0xF6) |
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99 rx_state = 2; |
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100 else if (rxb == 0x1B) |
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101 rx_state = 1; |
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102 else |
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103 rx_state = 0; |
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104 return(0); |
e7502631a0f9
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
105 case 2: |
e7502631a0f9
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
106 if (rxb == 0x02) |
e7502631a0f9
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
107 rx_state = 3; |
e7502631a0f9
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
108 else if (rxb == 0x1B) |
e7502631a0f9
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
109 rx_state = 1; |
e7502631a0f9
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
110 else |
e7502631a0f9
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
111 rx_state = 0; |
e7502631a0f9
initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
112 return(0); |
e7502631a0f9
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
113 case 3: |
e7502631a0f9
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
114 if (rxb == 0x00) |
e7502631a0f9
initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
115 rx_state = 4; |
e7502631a0f9
initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
116 else if (rxb == 0x1B) |
e7502631a0f9
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
117 rx_state = 1; |
e7502631a0f9
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
118 else |
e7502631a0f9
initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
119 rx_state = 0; |
e7502631a0f9
initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
120 return(0); |
e7502631a0f9
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
121 case 4: |
e7502631a0f9
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
122 rx_msg[0] = rxb; |
e7502631a0f9
initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
123 rx_state = 5; |
e7502631a0f9
initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
124 return(0); |
e7502631a0f9
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
125 case 5: |
e7502631a0f9
initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
126 rx_msg[1] = rxb; |
e7502631a0f9
initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
127 rx_state = 6; |
e7502631a0f9
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
128 return(0); |
e7502631a0f9
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
129 case 6: |
e7502631a0f9
initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
130 rx_msg[2] = rxb; |
e7502631a0f9
initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
131 rx_state = 0; |
e7502631a0f9
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
132 return handle_rx_msg(); |
e7502631a0f9
initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
133 } |
e7502631a0f9
initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
134 } |
e7502631a0f9
initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
135 |
e7502631a0f9
initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
136 static void |
e7502631a0f9
initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
137 read_loop() |
e7502631a0f9
initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
138 { |
e7502631a0f9
initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
139 u_char rdbuf[16]; |
e7502631a0f9
initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
140 int cc, i; |
e7502631a0f9
initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
141 |
e7502631a0f9
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
142 for (;;) { |
e7502631a0f9
initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
143 cc = read(target_fd, rdbuf, sizeof rdbuf); |
e7502631a0f9
initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
144 if (cc <= 0) { |
e7502631a0f9
initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
145 fprintf(stderr, "EOF/error on target tty\n"); |
e7502631a0f9
initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
146 exit(1); |
e7502631a0f9
initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
147 } |
e7502631a0f9
initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
148 for (i = 0; i < cc; i++) |
e7502631a0f9
initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
149 if (handle_rx_byte(rdbuf[i])) |
e7502631a0f9
initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
150 return; |
e7502631a0f9
initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
151 } |
e7502631a0f9
initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
152 } |
e7502631a0f9
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
153 |
250
8c011177adb9
loadtools reworked to use factored-out libserial
Mychaela Falconia <falcon@freecalypso.org>
parents:
44
diff
changeset
|
154 perform_compal_stage() |
0
e7502631a0f9
initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
155 { |
e7502631a0f9
initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
156 int fd; |
e7502631a0f9
initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
157 struct stat st; |
e7502631a0f9
initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
158 static int zero = 0; |
e7502631a0f9
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
159 |
e7502631a0f9
initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
160 if (!compalstage_pathname[0]) |
e7502631a0f9
initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
161 return(0); |
e7502631a0f9
initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
162 fd = open(compalstage_pathname, O_RDONLY); |
e7502631a0f9
initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
163 if (fd < 0) { |
e7502631a0f9
initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
164 perror(compalstage_pathname); |
e7502631a0f9
initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
165 exit(1); |
e7502631a0f9
initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
166 } |
e7502631a0f9
initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
167 fstat(fd, &st); |
e7502631a0f9
initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
168 if (!S_ISREG(st.st_mode)) { |
e7502631a0f9
initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
169 fprintf(stderr, "error: %s is not a regular file\n", |
e7502631a0f9
initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
170 compalstage_pathname); |
e7502631a0f9
initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
171 exit(1); |
e7502631a0f9
initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
172 } |
e7502631a0f9
initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
173 if (st.st_size > 65535) { |
e7502631a0f9
initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
174 fprintf(stderr, |
e7502631a0f9
initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
175 "error: %s exceed Compal download limit of 65535 bytes\n", |
e7502631a0f9
initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
176 compalstage_pathname); |
e7502631a0f9
initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
177 exit(1); |
e7502631a0f9
initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
178 } |
e7502631a0f9
initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
179 compalstage_len = st.st_size; |
e7502631a0f9
initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
180 compalstage_totlen = compalstage_len + 4; |
e7502631a0f9
initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
181 compalstage_imgbuf = malloc(compalstage_totlen); |
e7502631a0f9
initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
182 if (!compalstage_imgbuf) { |
e7502631a0f9
initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
183 perror("malloc"); |
e7502631a0f9
initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
184 exit(1); |
e7502631a0f9
initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
185 } |
e7502631a0f9
initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
186 compalstage_imgbuf[0] = 0x02; |
e7502631a0f9
initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
187 compalstage_imgbuf[1] = compalstage_len >> 8; |
e7502631a0f9
initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
188 compalstage_imgbuf[2] = compalstage_len; |
e7502631a0f9
initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
189 if (read(fd, compalstage_imgbuf+3, compalstage_len) != compalstage_len){ |
e7502631a0f9
initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
190 fprintf(stderr, "%s: read error or short read\n", |
e7502631a0f9
initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
191 compalstage_pathname); |
e7502631a0f9
initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
192 exit(1); |
e7502631a0f9
initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
193 } |
e7502631a0f9
initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
194 close(fd); |
e7502631a0f9
initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
195 compute_checksum(); |
e7502631a0f9
initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
196 |
e7502631a0f9
initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
197 printf("Using Compal stage image %s\n", compalstage_pathname); |
250
8c011177adb9
loadtools reworked to use factored-out libserial
Mychaela Falconia <falcon@freecalypso.org>
parents:
44
diff
changeset
|
198 set_fixed_baudrate("115200"); |
0
e7502631a0f9
initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
199 ioctl(target_fd, FIONBIO, &zero); |
e7502631a0f9
initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
200 printf("Waiting for PROMPT1 from target (%s) at 115200 baud\n", |
e7502631a0f9
initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
201 target_ttydev); |
e7502631a0f9
initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
202 read_loop(); |
e7502631a0f9
initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
203 free(compalstage_imgbuf); |
e7502631a0f9
initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
204 |
e7502631a0f9
initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
205 return(1); |
e7502631a0f9
initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
206 } |