2 * This file is part of the sigrok project.
4 * Copyright (C) 2010-2012 Bert Vermeulen <bert@biot.com>
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.
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.
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/>.
21 * Helper functions for the Cypress EZ-USB / FX2 series chips.
26 #include <glib/gstdio.h>
30 #include "libsigrok.h"
31 #include "libsigrok-internal.h"
33 /* Message logging helpers with driver-specific prefix string. */
34 #define DRIVER_LOG_DOMAIN "ezusb: "
35 #define sr_log(l, s, args...) sr_log(l, DRIVER_LOG_DOMAIN s, ## args)
36 #define sr_spew(s, args...) sr_spew(DRIVER_LOG_DOMAIN s, ## args)
37 #define sr_dbg(s, args...) sr_dbg(DRIVER_LOG_DOMAIN s, ## args)
38 #define sr_info(s, args...) sr_info(DRIVER_LOG_DOMAIN s, ## args)
39 #define sr_warn(s, args...) sr_warn(DRIVER_LOG_DOMAIN s, ## args)
40 #define sr_err(s, args...) sr_err(DRIVER_LOG_DOMAIN s, ## args)
42 SR_PRIV int ezusb_reset(struct libusb_device_handle *hdl, int set_clear)
47 sr_info("setting CPU reset mode %s...",
48 set_clear ? "on" : "off");
49 buf[0] = set_clear ? 1 : 0;
50 ret = libusb_control_transfer(hdl, LIBUSB_REQUEST_TYPE_VENDOR, 0xa0,
51 0xe600, 0x0000, buf, 1, 100);
53 sr_err("Unable to send control request: %s",
54 libusb_error_name(ret));
59 SR_PRIV int ezusb_install_firmware(libusb_device_handle *hdl,
63 int offset, chunksize, ret, result;
64 unsigned char buf[4096];
66 sr_info("Uploading firmware at %s", filename);
67 if ((fw = g_fopen(filename, "rb")) == NULL) {
68 sr_err("Unable to open firmware file %s for reading: %s",
69 filename, strerror(errno));
76 chunksize = fread(buf, 1, 4096, fw);
79 ret = libusb_control_transfer(hdl, LIBUSB_REQUEST_TYPE_VENDOR |
80 LIBUSB_ENDPOINT_OUT, 0xa0, offset,
81 0x0000, buf, chunksize, 100);
83 sr_err("Unable to send firmware to device: %s",
84 libusb_error_name(ret));
88 sr_info("Uploaded %d bytes", chunksize);
92 sr_info("Firmware upload done");
97 SR_PRIV int ezusb_upload_firmware(libusb_device *dev, int configuration,
100 struct libusb_device_handle *hdl;
103 sr_info("uploading firmware to device on %d.%d",
104 libusb_get_bus_number(dev), libusb_get_device_address(dev));
106 if ((ret = libusb_open(dev, &hdl)) < 0) {
107 sr_err("ezusb: failed to open device: %s",
108 libusb_error_name(ret));
112 /* Neither Windows/MinGW nor Darwin/Mac support these libusb-1.0 calls. */
113 #if !defined(_WIN32) && !defined(__APPLE__)
114 if (libusb_kernel_driver_active(hdl, 0)) {
115 if ((ret = libusb_detach_kernel_driver(hdl, 0)) < 0) {
116 sr_err("failed to detach kernel driver: %s",
117 libusb_error_name(ret));
123 if ((ret = libusb_set_configuration(hdl, configuration)) < 0) {
124 sr_err("Unable to set configuration: %s",
125 libusb_error_name(ret));
129 if ((ezusb_reset(hdl, 1)) < 0)
132 if (ezusb_install_firmware(hdl, filename) < 0)
135 if ((ezusb_reset(hdl, 0)) < 0)