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1 | /* |
2 | * This file is part of the sigrok project. | |
3 | * | |
4 | * Copyright (C) 2010 Bert Vermeulen <bert@biot.com> | |
5 | * | |
6 | * This program is free software: you can redistribute it and/or modify | |
7 | * it under the terms of the GNU General Public License as published by | |
8 | * the Free Software Foundation, either version 3 of the License, or | |
9 | * (at your option) any later version. | |
10 | * | |
11 | * This program is distributed in the hope that it will be useful, | |
12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | * GNU General Public License for more details. | |
15 | * | |
16 | * You should have received a copy of the GNU General Public License | |
17 | * along with this program. If not, see <http://www.gnu.org/licenses/>. | |
18 | */ | |
19 | ||
20 | /* | |
21 | * Helper functions for the Cypress EZ-USB / FX2 series chips. | |
22 | */ | |
23 | ||
24 | #include <libusb.h> | |
25 | #include <glib.h> | |
26 | #include <stdio.h> | |
27 | #include <errno.h> | |
28 | #include <string.h> | |
29 | #include "config.h" | |
30 | ||
31 | int ezusb_reset(struct libusb_device_handle *hdl, int set_clear) | |
32 | { | |
33 | int err; | |
34 | unsigned char buf[1]; | |
35 | ||
36 | g_message("setting CPU reset mode %s...", set_clear ? "on" : "off"); | |
37 | buf[0] = set_clear ? 1 : 0; | |
38 | err = libusb_control_transfer(hdl, LIBUSB_REQUEST_TYPE_VENDOR, 0xa0, | |
39 | 0xe600, 0x0000, buf, 1, 100); | |
40 | if(err < 0) | |
41 | g_warning("Unable to send control request: %d", err); | |
42 | ||
43 | return err; | |
44 | } | |
45 | ||
46 | ||
47 | int ezusb_install_firmware(libusb_device_handle *hdl, const char *filename) | |
48 | { | |
49 | FILE *fw; | |
50 | int offset, chunksize, err, result; | |
51 | unsigned char buf[4096]; | |
52 | ||
53 | g_message("Uploading firmware at %s", filename); | |
54 | if((fw = fopen(filename, "r")) == NULL) | |
55 | { | |
56 | g_warning("Unable to open firmware file %s for reading: %s", filename, strerror(errno)); | |
57 | return 1; | |
58 | } | |
59 | ||
60 | result = 0; | |
61 | offset = 0; | |
62 | while(1) | |
63 | { | |
64 | chunksize = fread(buf, 1, 4096, fw); | |
65 | if(chunksize == 0) | |
66 | break; | |
67 | err = libusb_control_transfer(hdl, LIBUSB_REQUEST_TYPE_VENDOR | LIBUSB_ENDPOINT_OUT, 0xa0, | |
68 | offset, 0x0000, buf, chunksize, 100); | |
69 | if(err < 0) | |
70 | { | |
71 | g_warning("Unable to send firmware to device: %d", err); | |
72 | result = 1; | |
73 | break; | |
74 | } | |
75 | g_message("Uploaded %d bytes", chunksize); | |
76 | offset += chunksize; | |
77 | } | |
78 | fclose(fw); | |
79 | g_message("Firmware upload done"); | |
80 | ||
81 | return result; | |
82 | } | |
83 | ||
84 |