1 /***************************************************************************
3 * Open \______ \ ____ ____ | | _\_ |__ _______ ___
4 * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
5 * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
6 * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
10 * Copyright (C) 2010 Amaury Pouly
12 * This program is free software; you can redistribute it and/or
13 * modify it under the terms of the GNU General Public License
14 * as published by the Free Software Foundation; either version 2
15 * of the License, or (at your option) any later version.
17 * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
18 * KIND, either express or implied.
20 ****************************************************************************/
27 void put32le(uint8_t *buf
, uint32_t i
)
30 *buf
++ = (i
>> 8) & 0xff;
31 *buf
++ = (i
>> 16) & 0xff;
32 *buf
++ = (i
>> 24) & 0xff;
35 void put32be(uint8_t *buf
, uint32_t i
)
37 *buf
++ = (i
>> 24) & 0xff;
38 *buf
++ = (i
>> 16) & 0xff;
39 *buf
++ = (i
>> 8) & 0xff;
43 int main(int argc
, char **argv
)
49 int i
, xfer_size
, nr_xfers
, recv_size
;
53 printf("usage: %s <xfer size> <file>\n", argv
[0]);
58 xfer_size
= strtol(argv
[1], &end
, 0);
59 if(end
!= (argv
[1] + strlen(argv
[1])))
61 printf("Invalid transfer size !\n");
65 libusb_device_handle
*dev
;
69 libusb_set_debug(NULL
, 3);
72 dev
= libusb_open_device_with_vid_pid(NULL
, 0x066F, 0x3780);
75 dev
= libusb_open_device_with_vid_pid(NULL
, 0x15A2, 0x004F);
78 printf("Cannot open device\n");
82 libusb_detach_kernel_driver(dev
, 0);
83 libusb_detach_kernel_driver(dev
, 4);
85 libusb_claim_interface (dev
, 0);
86 libusb_claim_interface (dev
, 4);
94 f
= fopen(argv
[2], "r");
97 perror("cannot open file");
100 fseek(f
, 0, SEEK_END
);
101 size_t size
= ftell(f
);
102 fseek(f
, 0, SEEK_SET
);
104 printf("Transfer size: %d\n", xfer_size
);
105 nr_xfers
= (size
+ xfer_size
- 1) / xfer_size
;
106 uint8_t *file_buf
= malloc(nr_xfers
* xfer_size
);
107 memset(file_buf
, 0xff, nr_xfers
* xfer_size
); // pad with 0xff
108 if(fread(file_buf
, size
, 1, f
) != 1)
110 perror("read error");
116 memset(msg
, 0, 0x20);
120 *p
++ = 0x01; // Init upload command
121 *p
++ = 'B'; // Signature
125 put32le(p
, 0x1); // I guess version or sub-command
127 put32le(p
, size
); // Payload size
129 // The second command starts at 0x20
133 *p
++ = 0x02; // Start upload
134 put32be(p
, size
); // Payload size, again
136 ret
= libusb_control_transfer(dev
,
137 LIBUSB_REQUEST_TYPE_CLASS
| LIBUSB_RECIPIENT_INTERFACE
, 0x9, 0x201, 0,
141 printf("transfer error at init step\n");
145 uint8_t *xfer_buf
= malloc(1 + xfer_size
);
147 for(i
= 0; i
< nr_xfers
; i
++)
150 memcpy(&xfer_buf
[1], &file_buf
[i
* xfer_size
], xfer_size
);
152 ret
= libusb_control_transfer(dev
,
153 LIBUSB_REQUEST_TYPE_CLASS
| LIBUSB_RECIPIENT_INTERFACE
,
154 0x9, 0x202, 0, xfer_buf
, xfer_size
+ 1, 1000);
157 printf("transfer error at send step %d\n", i
);
162 ret
= libusb_interrupt_transfer(dev
, 0x81, xfer_buf
, xfer_size
, &recv_size
,
166 printf("transfer error at final stage\n");
170 printf("ret %i\n", ret
);