1 /*
2  * Author: Henry Bruce <henry.bruce@intel.com>
3  * Copyright (c) 2015 Intel Corporation.
4  *
5  * Permission is hereby granted, free of charge, to any person obtaining
6  * a copy of this software and associated documentation files (the
7  * "Software"), to deal in the Software without restriction, including
8  * without limitation the rights to use, copy, modify, merge, publish,
9  * distribute, sublicense, and/or sell copies of the Software, and to
10  * permit persons to whom the Software is furnished to do so, subject to
11  * the following conditions:
12  *
13  * The above copyright notice and this permission notice shall be
14  * included in all copies or substantial portions of the Software.
15  *
16  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
17  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
18  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
19  * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
20  * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
21  * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
22  * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
23  */
24 
25 #include <stdlib.h>
26 #include <string.h>
27 
28 #include "mraa_internal.h"
29 #ifdef FTDI4222
30 #include "usb/ftdi_ft4222.h"
31 #endif
32 
33 
34 mraa_platform_t
mraa_usb_platform_extender(mraa_board_t * board)35 mraa_usb_platform_extender(mraa_board_t* board)
36 {
37     mraa_board_t* sub_plat = NULL;
38     mraa_platform_t platform_type = MRAA_UNKNOWN_PLATFORM;
39 #ifdef FTDI4222
40     if (mraa_ftdi_ft4222_init() == MRAA_SUCCESS) {
41         unsigned int versionChip, versionLib;
42         if (mraa_ftdi_ft4222_get_version(&versionChip, &versionLib) == MRAA_SUCCESS) {
43             // TODO: Add ft4222 version checks
44             platform_type = MRAA_FTDI_FT4222;
45         }
46     }
47 #endif
48     switch (platform_type) {
49 #ifdef FTDI4222
50         case MRAA_FTDI_FT4222:
51             sub_plat = mraa_ftdi_ft4222();
52             break;
53 #endif
54         default:
55             // this is not an error but more that we didn't find a USB platform extender we recognise
56             syslog(LOG_DEBUG, "Unknown USB Platform Extender, currently not supported by MRAA");
57     }
58 
59     if (sub_plat != NULL) {
60         sub_plat->platform_type = platform_type;
61         board->sub_platform = sub_plat;
62     }
63     return platform_type;
64 }
65 
66