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git.zerfleddert.de Git - proxmark3-svn/blob - common/cmd.c
2 * Proxmark send and receive commands
4 * Copyright (c) 2012, Roel Verdult
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions are met:
9 * 1. Redistributions of source code must retain the above copyright
10 * 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.
14 * 3. Neither the name of the copyright holders nor the
15 * names of its contributors may be used to endorse or promote products
16 * derived from this software without specific prior written permission.
18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ''AS IS'' AND ANY
19 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
20 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
21 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY
22 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
23 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
24 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
25 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
26 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
27 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
35 #include "proxmark3.h"
37 //static UsbCommand txcmd;
39 bool cmd_receive(UsbCommand
* cmd
) {
41 // Check if there is a usb packet available
42 if (!usb_poll()) return false;
44 // Try to retrieve the available command frame
45 size_t rxlen
= usb_read((byte_t
*)cmd
,sizeof(UsbCommand
));
47 // Check if the transfer was complete
48 if (rxlen
!= sizeof(UsbCommand
)) return false;
50 // Received command successfully
54 bool cmd_send(uint32_t cmd
, uint32_t arg0
, uint32_t arg1
, uint32_t arg2
, void* data
, size_t len
) {
57 for (size_t i
=0; i
<sizeof(UsbCommand
); i
++) {
58 ((byte_t
*)&txcmd
)[i
] = 0x00;
61 // Compose the outgoing command frame
67 // Add the (optional) content to the frame, with a maximum size of USB_CMD_DATA_SIZE
69 len
= MIN(len
,USB_CMD_DATA_SIZE
);
70 for (size_t i
=0; i
<len
; i
++) {
71 txcmd
.d
.asBytes
[i
] = ((byte_t
*)data
)[i
];
75 // Send frame and make sure all bytes are transmitted
76 if (usb_write((byte_t
*)&txcmd
,sizeof(UsbCommand
)) != 0) return false;