send a full frame containing only zeroes instead of a zero-byte frame
[hmcfgusb] / flash-hmcfgusb.c
CommitLineData
9fb0f4d2
MG
1/* (not working) flasher for HM-CFG-USB
2 *
3 * Copyright (c) 2013 Michael Gernoth <michael@gernoth.net>
4 *
5 * Permission is hereby granted, free of charge, to any person obtaining a copy
6 * of this software and associated documentation files (the "Software"), to
7 * deal in the Software without restriction, including without limitation the
8 * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
9 * sell copies of the Software, and to permit persons to whom the Software is
10 * furnished to do so, subject to the following conditions:
11 *
12 * The above copyright notice and this permission notice shall be included in
13 * all copies or substantial portions of the Software.
14 *
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
18 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
20 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
21 * IN THE SOFTWARE.
22 */
23
24#include <stdio.h>
25#include <stdlib.h>
26#include <unistd.h>
27#include <stdint.h>
28#include <string.h>
29#include <strings.h>
30#include <poll.h>
31#include <errno.h>
32#include <sys/types.h>
33#include <sys/stat.h>
34#include <fcntl.h>
35#include <sys/time.h>
36#include <libusb-1.0/libusb.h>
37
38#include "hexdump.h"
39#include "hmcfgusb.h"
40
41struct recv_data {
42};
43
44static int parse_hmcfgusb(uint8_t *buf, int buf_len, void *data)
45{
46 if (buf_len < 1)
47 return 1;
48
49 switch(buf[0]) {
50 case 'E':
51 case 'H':
52 case 'R':
53 case 'I':
54 break;
55 default:
56 hexdump(buf, buf_len, "Unknown> ");
57 break;
58 }
59
60 return 1;
61}
62
63static uint8_t ascii_to_nibble(uint8_t a)
64{
65 uint8_t c = 0x00;
66
67 if ((a >= '0') && (a <= '9')) {
68 c = a - '0';
69 } else if ((a >= 'A') && (a <= 'F')) {
70 c = (a - 'A') + 10;
71 } else if ((a >= 'a') && (a <= 'f')) {
72 c = (a - 'a') + 10;
73 }
74
75 return c;
76}
77
78int main(int argc, char **argv)
79{
80 struct hmcfgusb_dev *dev;
81 struct recv_data rdata;
82 uint8_t out[0x40]; //FIXME!!!
83 uint8_t buf[0x80];
84 int fd;
85 int r;
86 int i;
87 int cnt;
88
89 hmcfgusb_set_debug(0);
90
91 memset(&rdata, 0, sizeof(rdata));
92
93 dev = hmcfgusb_init(parse_hmcfgusb, &rdata);
94 if (!dev) {
95 fprintf(stderr, "Can't initialize HM-CFG-USB\n");
96 exit(EXIT_FAILURE);
97 }
98 printf("HM-CFG-USB opened!\n");
99
100 fd = open("hmusbif.enc", O_RDONLY);
101 if (fd < 0) {
102 perror("Can't open hmusbif.enc");
103 exit(EXIT_FAILURE);
104 }
105
106 cnt = 0;
107 do {
108 memset(buf, 0, sizeof(buf));
109 r = read(fd, buf, sizeof(buf));
110 if (r < 0) {
111 perror("read");
112 exit(EXIT_FAILURE);
113 } else if (r == 0) {
114 break;
115 }
116 memset(out, 0, sizeof(out));
117 for (i = 0; i < r; i+=2) {
118 out[i/2] = (ascii_to_nibble(buf[i]) & 0xf)<< 4;
119 out[i/2] |= ascii_to_nibble(buf[i+1]) & 0xf;
120 }
121 cnt += r/2;
122 printf("Flashing %d bytes...\n", cnt);
123 hmcfgusb_send(dev, out, r/2, 1);
124 } while (r > 0);
125
126 hmcfgusb_close(dev);
127
128 return EXIT_SUCCESS;
129}
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