2 * Copyright 2011 Drew Fisher <drew.m.fisher@gmail.com>. All rights reserved.
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
15 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ''AS IS'' AND
16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18 * ARE DISCLAIMED. IN NO EVENT SHALL DREW FISHER OR CONTRIBUTORS BE LIABLE
19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27 * The views and conclusions contained in the software and documentation are
28 * those of the authors and should not be interpreted as representing official
29 * policies, either expressed or implied, of Drew Fisher.
41 #define KINECT_AUDIO_VID 0x045e
42 #define KINECT_AUDIO_PID 0x02ad
43 #define KINECT_AUDIO_CONFIGURATION 1
44 #define KINECT_AUDIO_INTERFACE 0
45 #define KINECT_AUDIO_IN_EP 0x81
46 #define KINECT_AUDIO_OUT_EP 0x01
48 static libusb_device_handle *dev;
49 static unsigned int seq;
66 #define LOG(...) printf(__VA_ARGS__)
68 #if __BYTE_ORDER == __BIG_ENDIAN
69 static inline uint32_t fn_le32(uint32_t d)
71 return (d<<24) | ((d<<8)&0xFF0000) | ((d>>8)&0xFF00) | (d>>24);
74 #define fn_le32(x) (x)
77 static void dump_bl_cmd(bootloader_command cmd) {
79 for (i = 0; i < 24; i++)
80 LOG("%02X ", ((unsigned char*)(&cmd))[i]);
84 static int get_first_reply(void) {
85 unsigned char buffer[512];
88 res = libusb_bulk_transfer(dev, KINECT_AUDIO_IN_EP, buffer, 512, &transferred, 0);
90 LOG("Error reading first reply: %d\ttransferred: %d (expected %d)\n", res, transferred, 0x60);
93 LOG("Reading first reply: ");
95 for (i = 0; i < transferred; ++i) {
96 LOG("%02X ", buffer[i]);
102 static int get_reply(void) {
105 /* The following is needed because libusb_bulk_transfer might
106 * fail when working on a buffer smaller than 512 bytes.
108 unsigned char dump[512];
113 res = libusb_bulk_transfer(dev, KINECT_AUDIO_IN_EP, reply.dump, 512, &transferred, 0);
114 if (res != 0 || transferred != sizeof(status_code)) {
115 LOG("Error reading reply: %d\ttransferred: %d (expected %zu)\n", res, transferred, sizeof(status_code));
118 if (fn_le32(reply.buffer.magic) != 0x0a6fe000) {
119 LOG("Error reading reply: invalid magic %08X\n", reply.buffer.magic);
122 if (fn_le32(reply.buffer.seq) != seq) {
123 LOG("Error reading reply: non-matching sequence number %08X (expected %08X)\n", reply.buffer.seq, seq);
126 if (fn_le32(reply.buffer.status) != 0) {
127 LOG("Notice reading reply: last uint32_t was nonzero: %d\n", reply.buffer.status);
130 LOG("Reading reply: ");
132 for (i = 0; i < transferred; ++i) {
133 LOG("%02X ", reply.dump[i]);
140 int main(int argc, char** argv) {
141 char default_filename[] = "firmware.bin";
142 char* filename = default_filename;
149 FILE* fw = fopen(filename, "rb");
151 fprintf(stderr, "Failed to open %s: %s\n", filename, strerror(errno));
156 libusb_set_debug(NULL, 3);
158 dev = libusb_open_device_with_vid_pid(NULL, KINECT_AUDIO_VID, KINECT_AUDIO_PID);
160 fprintf(stderr, "Couldn't open device.\n");
162 goto fail_libusb_open;
165 int current_configuration = -1;
166 libusb_get_configuration(dev, ¤t_configuration);
167 if (current_configuration != KINECT_AUDIO_CONFIGURATION)
168 libusb_set_configuration(dev, KINECT_AUDIO_CONFIGURATION);
170 libusb_claim_interface(dev, KINECT_AUDIO_INTERFACE);
172 current_configuration = -1;
173 libusb_get_configuration(dev, ¤t_configuration);
174 if (current_configuration != KINECT_AUDIO_CONFIGURATION) {
181 bootloader_command cmd;
182 cmd.magic = fn_le32(0x06022009);
183 cmd.seq = fn_le32(seq);
184 cmd.bytes = fn_le32(0x60);
185 cmd.cmd = fn_le32(0);
186 cmd.write_addr = fn_le32(0x15);
187 cmd.unk = fn_le32(0);
189 LOG("About to send: ");
194 res = libusb_bulk_transfer(dev, KINECT_AUDIO_OUT_EP, (unsigned char*)&cmd, sizeof(cmd), &transferred, 0);
195 if (res != 0 || transferred != sizeof(cmd)) {
196 LOG("Error: res: %d\ttransferred: %d (expected %zu)\n", res, transferred, sizeof(cmd));
199 res = get_first_reply(); // This first one doesn't have the usual magic bytes at the beginning, and is 96 bytes long - much longer than the usual 12-byte replies.
201 LOG("get_first_reply() failed");
205 res = get_reply(); // I'm not sure why we do this twice here, but maybe it'll make sense later.
207 LOG("First get_reply() failed");
212 // Split addr declaration and assignment in order to compile as C++,
213 // otherwise this would give "jump to label '...' crosses initialization"
217 unsigned char page[0x4000];
220 read = (int)fread(page, 1, 0x4000, fw);
225 cmd.seq = fn_le32(seq);
226 cmd.bytes = fn_le32((unsigned int)read);
227 cmd.cmd = fn_le32(0x03);
228 cmd.write_addr = fn_le32(addr);
229 LOG("About to send: ");
233 res = libusb_bulk_transfer(dev, KINECT_AUDIO_OUT_EP, (unsigned char*)&cmd, sizeof(cmd), &transferred, 0);
234 if (res != 0 || transferred != sizeof(cmd)) {
235 LOG("Error: res: %d\ttransferred: %d (expected %zu)\n", res, transferred, sizeof(cmd));
239 while (bytes_sent < read) {
240 int to_send = (read - bytes_sent > 512 ? 512 : read - bytes_sent);
242 res = libusb_bulk_transfer(dev, KINECT_AUDIO_OUT_EP, &page[bytes_sent], to_send, &transferred, 0);
243 if (res != 0 || transferred != to_send) {
244 LOG("Error: res: %d\ttransferred: %d (expected %d)\n", res, transferred, to_send);
247 bytes_sent += to_send;
251 LOG("get_reply failed");
255 addr += (uint32_t)read;
259 cmd.seq = fn_le32(seq);
260 cmd.bytes = fn_le32(0);
261 cmd.cmd = fn_le32(0x04);
262 cmd.write_addr = fn_le32(0x00080030);
265 res = libusb_bulk_transfer(dev, KINECT_AUDIO_OUT_EP, (unsigned char*)&cmd, sizeof(cmd), &transferred, 0);
266 if (res != 0 || transferred != sizeof(cmd)) {
267 LOG("Error: res: %d\ttransferred: %d (expected %zu)\n", res, transferred, sizeof(cmd));
272 // Now the device reenumerates.
275 libusb_release_interface(dev, KINECT_AUDIO_INTERFACE);