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Commit | Line | Data |
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a1bb33af | 1 | /* |
50985c20 | 2 | * This file is part of the libsigrok project. |
a1bb33af | 3 | * |
c73d2ea4 | 4 | * Copyright (C) 2010-2012 Bert Vermeulen <bert@biot.com> |
a1bb33af UH |
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> | |
45c59c8b BV |
30 | #include "libsigrok.h" |
31 | #include "libsigrok-internal.h" | |
a1bb33af | 32 | |
3544f848 | 33 | #define LOG_PREFIX "ezusb" |
d458a0ac | 34 | |
1a081ca6 | 35 | SR_PRIV int ezusb_reset(struct libusb_device_handle *hdl, int set_clear) |
a1bb33af | 36 | { |
ebc34738 | 37 | int ret; |
a1bb33af UH |
38 | unsigned char buf[1]; |
39 | ||
d458a0ac | 40 | sr_info("setting CPU reset mode %s...", |
7b48d6e1 | 41 | set_clear ? "on" : "off"); |
a1bb33af | 42 | buf[0] = set_clear ? 1 : 0; |
ebc34738 | 43 | ret = libusb_control_transfer(hdl, LIBUSB_REQUEST_TYPE_VENDOR, 0xa0, |
9d2933fb | 44 | 0xe600, 0x0000, buf, 1, 100); |
ebc34738 | 45 | if (ret < 0) |
1740429d | 46 | sr_err("Unable to send control request: %s.", |
d4928d71 | 47 | libusb_error_name(ret)); |
a1bb33af | 48 | |
ebc34738 | 49 | return ret; |
a1bb33af UH |
50 | } |
51 | ||
1a081ca6 UH |
52 | SR_PRIV int ezusb_install_firmware(libusb_device_handle *hdl, |
53 | const char *filename) | |
a1bb33af UH |
54 | { |
55 | FILE *fw; | |
ebc34738 | 56 | int offset, chunksize, ret, result; |
a1bb33af UH |
57 | unsigned char buf[4096]; |
58 | ||
d458a0ac | 59 | sr_info("Uploading firmware at %s", filename); |
98fec29e | 60 | if (!(fw = g_fopen(filename, "rb"))) { |
d458a0ac | 61 | sr_err("Unable to open firmware file %s for reading: %s", |
133a37bf | 62 | filename, strerror(errno)); |
6d754b6d | 63 | return SR_ERR; |
a1bb33af UH |
64 | } |
65 | ||
6d754b6d BV |
66 | result = SR_OK; |
67 | offset = 0; | |
9d2933fb | 68 | while (1) { |
a1bb33af | 69 | chunksize = fread(buf, 1, 4096, fw); |
9d2933fb | 70 | if (chunksize == 0) |
a1bb33af | 71 | break; |
ebc34738 | 72 | ret = libusb_control_transfer(hdl, LIBUSB_REQUEST_TYPE_VENDOR | |
986f7270 UH |
73 | LIBUSB_ENDPOINT_OUT, 0xa0, offset, |
74 | 0x0000, buf, chunksize, 100); | |
ebc34738 | 75 | if (ret < 0) { |
1740429d | 76 | sr_err("Unable to send firmware to device: %s.", |
d4928d71 | 77 | libusb_error_name(ret)); |
6d754b6d | 78 | result = SR_ERR; |
a1bb33af UH |
79 | break; |
80 | } | |
d458a0ac | 81 | sr_info("Uploaded %d bytes", chunksize); |
a1bb33af UH |
82 | offset += chunksize; |
83 | } | |
84 | fclose(fw); | |
d458a0ac | 85 | sr_info("Firmware upload done"); |
a1bb33af UH |
86 | |
87 | return result; | |
88 | } | |
edf60d05 | 89 | |
1a081ca6 UH |
90 | SR_PRIV int ezusb_upload_firmware(libusb_device *dev, int configuration, |
91 | const char *filename) | |
edf60d05 UH |
92 | { |
93 | struct libusb_device_handle *hdl; | |
ebc34738 | 94 | int ret; |
edf60d05 | 95 | |
d458a0ac | 96 | sr_info("uploading firmware to device on %d.%d", |
7b48d6e1 | 97 | libusb_get_bus_number(dev), libusb_get_device_address(dev)); |
edf60d05 | 98 | |
ebc34738 | 99 | if ((ret = libusb_open(dev, &hdl)) < 0) { |
1740429d | 100 | sr_err("failed to open device: %s.", libusb_error_name(ret)); |
6d754b6d | 101 | return SR_ERR; |
edf60d05 UH |
102 | } |
103 | ||
3f98bf70 | 104 | /* |
f3f19d11 | 105 | * The libusb Darwin backend is broken: it can report a kernel driver being |
3f98bf70 BV |
106 | * active, but detaching it always returns an error. |
107 | */ | |
108 | #if !defined(__APPLE__) | |
109 | if (libusb_kernel_driver_active(hdl, 0) == 1) { | |
ebc34738 | 110 | if ((ret = libusb_detach_kernel_driver(hdl, 0)) < 0) { |
d4928d71 PS |
111 | sr_err("failed to detach kernel driver: %s", |
112 | libusb_error_name(ret)); | |
6d754b6d | 113 | return SR_ERR; |
e10d6e32 BV |
114 | } |
115 | } | |
bf3f06c9 | 116 | #endif |
e10d6e32 | 117 | |
ebc34738 | 118 | if ((ret = libusb_set_configuration(hdl, configuration)) < 0) { |
d4928d71 PS |
119 | sr_err("Unable to set configuration: %s", |
120 | libusb_error_name(ret)); | |
6d754b6d | 121 | return SR_ERR; |
edf60d05 UH |
122 | } |
123 | ||
124 | if ((ezusb_reset(hdl, 1)) < 0) | |
6d754b6d | 125 | return SR_ERR; |
edf60d05 | 126 | |
6d754b6d BV |
127 | if (ezusb_install_firmware(hdl, filename) < 0) |
128 | return SR_ERR; | |
edf60d05 UH |
129 | |
130 | if ((ezusb_reset(hdl, 0)) < 0) | |
6d754b6d | 131 | return SR_ERR; |
edf60d05 UH |
132 | |
133 | libusb_close(hdl); | |
134 | ||
6d754b6d | 135 | return SR_OK; |
edf60d05 | 136 | } |