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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> | |
3bbd9849 | 26 | #include <glib/gstdio.h> |
a1bb33af UH |
27 | #include <stdio.h> |
28 | #include <errno.h> | |
29 | #include <string.h> | |
30 | #include "config.h" | |
31 | ||
32 | int ezusb_reset(struct libusb_device_handle *hdl, int set_clear) | |
33 | { | |
34 | int err; | |
35 | unsigned char buf[1]; | |
36 | ||
37 | g_message("setting CPU reset mode %s...", set_clear ? "on" : "off"); | |
38 | buf[0] = set_clear ? 1 : 0; | |
39 | err = libusb_control_transfer(hdl, LIBUSB_REQUEST_TYPE_VENDOR, 0xa0, | |
9d2933fb UH |
40 | 0xe600, 0x0000, buf, 1, 100); |
41 | if (err < 0) | |
a1bb33af UH |
42 | g_warning("Unable to send control request: %d", err); |
43 | ||
44 | return err; | |
45 | } | |
46 | ||
a1bb33af UH |
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); | |
868d8cef | 54 | if ((fw = g_fopen(filename, "rb")) == NULL) { |
9d2933fb UH |
55 | g_warning("Unable to open firmware file %s for reading: %s", |
56 | filename, strerror(errno)); | |
a1bb33af UH |
57 | return 1; |
58 | } | |
59 | ||
986f7270 | 60 | result = offset = 0; |
9d2933fb | 61 | while (1) { |
a1bb33af | 62 | chunksize = fread(buf, 1, 4096, fw); |
9d2933fb | 63 | if (chunksize == 0) |
a1bb33af | 64 | break; |
9d2933fb | 65 | err = libusb_control_transfer(hdl, LIBUSB_REQUEST_TYPE_VENDOR | |
986f7270 UH |
66 | LIBUSB_ENDPOINT_OUT, 0xa0, offset, |
67 | 0x0000, buf, chunksize, 100); | |
9d2933fb | 68 | if (err < 0) { |
a1bb33af UH |
69 | g_warning("Unable to send firmware to device: %d", err); |
70 | result = 1; | |
71 | break; | |
72 | } | |
73 | g_message("Uploaded %d bytes", chunksize); | |
74 | offset += chunksize; | |
75 | } | |
76 | fclose(fw); | |
77 | g_message("Firmware upload done"); | |
78 | ||
79 | return result; | |
80 | } | |
edf60d05 UH |
81 | |
82 | int ezusb_upload_firmware(libusb_device *dev, int configuration, | |
83 | const char *filename) | |
84 | { | |
85 | struct libusb_device_handle *hdl; | |
86 | int err; | |
87 | ||
88 | g_message("uploading firmware to device on %d.%d", | |
89 | libusb_get_bus_number(dev), libusb_get_device_address(dev)); | |
90 | ||
91 | err = libusb_open(dev, &hdl); | |
92 | if (err != 0) { | |
93 | g_warning("failed to open device: %d", err); | |
94 | return 1; | |
95 | } | |
96 | ||
97 | err = libusb_set_configuration(hdl, configuration); | |
98 | if (err != 0) { | |
99 | g_warning("Unable to set configuration: %d", err); | |
100 | return 1; | |
101 | } | |
102 | ||
103 | if ((ezusb_reset(hdl, 1)) < 0) | |
104 | return 1; | |
105 | ||
106 | if (ezusb_install_firmware(hdl, filename) != 0) | |
107 | return 1; | |
108 | ||
109 | if ((ezusb_reset(hdl, 0)) < 0) | |
110 | return 1; | |
111 | ||
112 | libusb_close(hdl); | |
113 | ||
114 | return 0; | |
115 | } |