]>
Commit | Line | Data |
---|---|---|
a1bb33af UH |
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, | |
9d2933fb UH |
39 | 0xe600, 0x0000, buf, 1, 100); |
40 | if (err < 0) | |
a1bb33af UH |
41 | g_warning("Unable to send control request: %d", err); |
42 | ||
43 | return err; | |
44 | } | |
45 | ||
a1bb33af UH |
46 | int ezusb_install_firmware(libusb_device_handle *hdl, const char *filename) |
47 | { | |
48 | FILE *fw; | |
49 | int offset, chunksize, err, result; | |
50 | unsigned char buf[4096]; | |
51 | ||
52 | g_message("Uploading firmware at %s", filename); | |
9d2933fb UH |
53 | if ((fw = fopen(filename, "r")) == NULL) { |
54 | g_warning("Unable to open firmware file %s for reading: %s", | |
55 | filename, strerror(errno)); | |
a1bb33af UH |
56 | return 1; |
57 | } | |
58 | ||
986f7270 | 59 | result = offset = 0; |
9d2933fb | 60 | while (1) { |
a1bb33af | 61 | chunksize = fread(buf, 1, 4096, fw); |
9d2933fb | 62 | if (chunksize == 0) |
a1bb33af | 63 | break; |
9d2933fb | 64 | err = libusb_control_transfer(hdl, LIBUSB_REQUEST_TYPE_VENDOR | |
986f7270 UH |
65 | LIBUSB_ENDPOINT_OUT, 0xa0, offset, |
66 | 0x0000, buf, chunksize, 100); | |
9d2933fb | 67 | if (err < 0) { |
a1bb33af UH |
68 | g_warning("Unable to send firmware to device: %d", err); |
69 | result = 1; | |
70 | break; | |
71 | } | |
72 | g_message("Uploaded %d bytes", chunksize); | |
73 | offset += chunksize; | |
74 | } | |
75 | fclose(fw); | |
76 | g_message("Firmware upload done"); | |
77 | ||
78 | return result; | |
79 | } | |
edf60d05 UH |
80 | |
81 | int ezusb_upload_firmware(libusb_device *dev, int configuration, | |
82 | const char *filename) | |
83 | { | |
84 | struct libusb_device_handle *hdl; | |
85 | int err; | |
86 | ||
87 | g_message("uploading firmware to device on %d.%d", | |
88 | libusb_get_bus_number(dev), libusb_get_device_address(dev)); | |
89 | ||
90 | err = libusb_open(dev, &hdl); | |
91 | if (err != 0) { | |
92 | g_warning("failed to open device: %d", err); | |
93 | return 1; | |
94 | } | |
95 | ||
96 | err = libusb_set_configuration(hdl, configuration); | |
97 | if (err != 0) { | |
98 | g_warning("Unable to set configuration: %d", err); | |
99 | return 1; | |
100 | } | |
101 | ||
102 | if ((ezusb_reset(hdl, 1)) < 0) | |
103 | return 1; | |
104 | ||
105 | if (ezusb_install_firmware(hdl, filename) != 0) | |
106 | return 1; | |
107 | ||
108 | if ((ezusb_reset(hdl, 0)) < 0) | |
109 | return 1; | |
110 | ||
111 | libusb_close(hdl); | |
112 | ||
113 | return 0; | |
114 | } |