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 SR_PRIV int ezusb_reset(struct libusb_device_handle *hdl, int set_clear)
38 sr_info("ezusb: setting CPU reset mode %s...",
39 set_clear ? "on" : "off");
40 buf[0] = set_clear ? 1 : 0;
41 ret = libusb_control_transfer(hdl, LIBUSB_REQUEST_TYPE_VENDOR, 0xa0,
42 0xe600, 0x0000, buf, 1, 100);
44 sr_err("ezusb: Unable to send control request: %d", ret);
49 SR_PRIV int ezusb_install_firmware(libusb_device_handle *hdl,
53 int offset, chunksize, ret, result;
54 unsigned char buf[4096];
56 sr_info("ezusb: Uploading firmware at %s", filename);
57 if ((fw = g_fopen(filename, "rb")) == NULL) {
58 sr_err("ezusb: Unable to open firmware file %s for reading: %s",
59 filename, strerror(errno));
66 chunksize = fread(buf, 1, 4096, fw);
69 ret = libusb_control_transfer(hdl, LIBUSB_REQUEST_TYPE_VENDOR |
70 LIBUSB_ENDPOINT_OUT, 0xa0, offset,
71 0x0000, buf, chunksize, 100);
73 sr_err("ezusb: Unable to send firmware to device: %d",
78 sr_info("ezusb: Uploaded %d bytes", chunksize);
82 sr_info("ezusb: Firmware upload done");
87 SR_PRIV int ezusb_upload_firmware(libusb_device *dev, int configuration,
90 struct libusb_device_handle *hdl;
93 sr_info("ezusb: uploading firmware to device on %d.%d",
94 libusb_get_bus_number(dev), libusb_get_device_address(dev));
96 if ((ret = libusb_open(dev, &hdl)) < 0) {
97 sr_err("ezusb: failed to open device: %d", ret);
101 /* Neither Windows/MinGW nor Darwin/Mac support these libusb-1.0 calls. */
102 #if !defined(_WIN32) && !defined(__APPLE__)
103 if (libusb_kernel_driver_active(hdl, 0)) {
104 if ((ret = libusb_detach_kernel_driver(hdl, 0)) < 0) {
105 sr_err("ezusb: failed to detach kernel driver: %d", ret);
111 if ((ret = libusb_set_configuration(hdl, configuration)) < 0) {
112 sr_err("ezusb: Unable to set configuration: %d", ret);
116 if ((ezusb_reset(hdl, 1)) < 0)
119 if (ezusb_install_firmware(hdl, filename) < 0)
122 if ((ezusb_reset(hdl, 0)) < 0)