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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" | |
b7f09cf8 UH |
31 | #include "sigrok.h" |
32 | #include "sigrok-internal.h" | |
a1bb33af UH |
33 | |
34 | int ezusb_reset(struct libusb_device_handle *hdl, int set_clear) | |
35 | { | |
36 | int err; | |
37 | unsigned char buf[1]; | |
38 | ||
b08024a8 | 39 | sr_info("setting CPU reset mode %s...", set_clear ? "on" : "off"); |
a1bb33af UH |
40 | buf[0] = set_clear ? 1 : 0; |
41 | err = libusb_control_transfer(hdl, LIBUSB_REQUEST_TYPE_VENDOR, 0xa0, | |
9d2933fb UH |
42 | 0xe600, 0x0000, buf, 1, 100); |
43 | if (err < 0) | |
b08024a8 | 44 | sr_warn("Unable to send control request: %d", err); |
a1bb33af UH |
45 | |
46 | return err; | |
47 | } | |
48 | ||
a1bb33af UH |
49 | int ezusb_install_firmware(libusb_device_handle *hdl, const char *filename) |
50 | { | |
51 | FILE *fw; | |
52 | int offset, chunksize, err, result; | |
53 | unsigned char buf[4096]; | |
54 | ||
b08024a8 | 55 | sr_info("Uploading firmware at %s", filename); |
868d8cef | 56 | if ((fw = g_fopen(filename, "rb")) == NULL) { |
b08024a8 UH |
57 | sr_warn("Unable to open firmware file %s for reading: %s", |
58 | filename, strerror(errno)); | |
6d754b6d | 59 | return SR_ERR; |
a1bb33af UH |
60 | } |
61 | ||
6d754b6d BV |
62 | result = SR_OK; |
63 | offset = 0; | |
9d2933fb | 64 | while (1) { |
a1bb33af | 65 | chunksize = fread(buf, 1, 4096, fw); |
9d2933fb | 66 | if (chunksize == 0) |
a1bb33af | 67 | break; |
9d2933fb | 68 | err = libusb_control_transfer(hdl, LIBUSB_REQUEST_TYPE_VENDOR | |
986f7270 UH |
69 | LIBUSB_ENDPOINT_OUT, 0xa0, offset, |
70 | 0x0000, buf, chunksize, 100); | |
9d2933fb | 71 | if (err < 0) { |
b08024a8 | 72 | sr_warn("Unable to send firmware to device: %d", err); |
6d754b6d | 73 | result = SR_ERR; |
a1bb33af UH |
74 | break; |
75 | } | |
b08024a8 | 76 | sr_info("Uploaded %d bytes", chunksize); |
a1bb33af UH |
77 | offset += chunksize; |
78 | } | |
79 | fclose(fw); | |
b08024a8 | 80 | sr_info("Firmware upload done"); |
a1bb33af UH |
81 | |
82 | return result; | |
83 | } | |
edf60d05 UH |
84 | |
85 | int ezusb_upload_firmware(libusb_device *dev, int configuration, | |
86 | const char *filename) | |
87 | { | |
88 | struct libusb_device_handle *hdl; | |
89 | int err; | |
90 | ||
b08024a8 | 91 | sr_info("uploading firmware to device on %d.%d", |
edf60d05 UH |
92 | libusb_get_bus_number(dev), libusb_get_device_address(dev)); |
93 | ||
6d754b6d | 94 | if ((err = libusb_open(dev, &hdl)) < 0) { |
b08024a8 | 95 | sr_warn("failed to open device: %d", err); |
6d754b6d | 96 | return SR_ERR; |
edf60d05 UH |
97 | } |
98 | ||
e10d6e32 | 99 | if (libusb_kernel_driver_active(hdl, 0)) { |
6d754b6d BV |
100 | if ((err = libusb_detach_kernel_driver(hdl, 0)) < 0) { |
101 | sr_warn("failed to detach kernel driver: %d", err); | |
102 | return SR_ERR; | |
e10d6e32 BV |
103 | } |
104 | } | |
105 | ||
6d754b6d | 106 | if ((err = libusb_set_configuration(hdl, configuration)) < 0) { |
b08024a8 | 107 | sr_warn("Unable to set configuration: %d", err); |
6d754b6d | 108 | return SR_ERR; |
edf60d05 UH |
109 | } |
110 | ||
111 | if ((ezusb_reset(hdl, 1)) < 0) | |
6d754b6d | 112 | return SR_ERR; |
edf60d05 | 113 | |
6d754b6d BV |
114 | if (ezusb_install_firmware(hdl, filename) < 0) |
115 | return SR_ERR; | |
edf60d05 UH |
116 | |
117 | if ((ezusb_reset(hdl, 0)) < 0) | |
6d754b6d | 118 | return SR_ERR; |
edf60d05 UH |
119 | |
120 | libusb_close(hdl); | |
121 | ||
6d754b6d | 122 | return SR_OK; |
edf60d05 | 123 | } |