1 /*
2 * Copyright (c) 2013 Travis Geiselbrecht
3 *
4 * Use of this source code is governed by a MIT-style
5 * license that can be found in the LICENSE file or at
6 * https://opensource.org/licenses/MIT
7 */
8 #include <lk/err.h>
9 #include <lk/debug.h>
10 #include <stdio.h>
11 #include <target.h>
12 #include <lk/compiler.h>
13 #include <dev/usb.h>
14 #include <hw/usb.h>
15 #include <lk/init.h>
16
17 #define W(w) (w & 0xff), (w >> 8)
18 #define W3(w) (w & 0xff), ((w >> 8) & 0xff), ((w >> 16) & 0xff)
19
20 /* top level device descriptor */
21 static const uint8_t dev_descr[] = {
22 0x12, /* descriptor length */
23 DEVICE, /* Device Descriptor type */
24 W(0x0200), /* USB Version */
25 0xff, /* class */
26 0xff, /* subclass */
27 0xff, /* protocol */
28 64, /* max packet size, ept0 */
29 W(0x9999), /* vendor */
30 W(0x9999), /* product */
31 W(0x9999), /* release */
32 0x0, /* manufacturer string */
33 0x0, /* product string */
34 0x0, /* serialno string */
35 0x1, /* num configs */
36 };
37
38 /* high/low speed device qualifier */
39 static const uint8_t devqual_descr[] = {
40 0x0a, /* len */
41 DEVICE_QUALIFIER, /* Device Qualifier type */
42 W(0x0200), /* USB version */
43 0x00, /* class */
44 0x00, /* subclass */
45 0x00, /* protocol */
46 64, /* max packet size, ept0 */
47 0x01, /* num configs */
48 0x00 /* reserved */
49 };
50
51 static const uint8_t cfg_descr[] = {
52 0x09, /* Length of Cfg Descr */
53 CONFIGURATION, /* Type of Cfg Descr */
54 W(0x09), /* Total Length (incl ifc, ept) */
55 0x00, /* # Interfaces */
56 0x01, /* Cfg Value */
57 0x00, /* Cfg String */
58 0xc0, /* Attributes -- self powered */
59 250, /* Power Consumption - 500mA */
60 };
61
62 static const uchar langid[] = { 0x04, 0x03, 0x09, 0x04 };
63
64 static const uint8_t if_descriptor_lowspeed[] = {
65 0x09, /* length */
66 INTERFACE, /* type */
67 0x01, /* interface num */
68 0x00, /* alternates */
69 0x02, /* endpoint count */
70 0xff, /* interface class */
71 0xff, /* interface subclass */
72 0x00, /* interface protocol */
73 0x00, /* string index */
74
75 /* endpoint 1 IN */
76 0x07, /* length */
77 ENDPOINT, /* type */
78 0x81, /* address: 1 IN */
79 0x02, /* type: bulk */
80 W(64), /* max packet size: 64 */
81 00, /* interval */
82
83 /* endpoint 1 OUT */
84 0x07, /* length */
85 ENDPOINT, /* type */
86 0x01, /* address: 1 OUT */
87 0x02, /* type: bulk */
88 W(64), /* max packet size: 64 */
89 00, /* interval */
90 };
91
92 usb_config config = {
93 .lowspeed = {
94 .device = USB_DESC_STATIC(dev_descr),
95 .device_qual = USB_DESC_STATIC(devqual_descr),
96 .config = USB_DESC_STATIC(cfg_descr),
97 },
98 .highspeed = {
99 .device = USB_DESC_STATIC(dev_descr),
100 .device_qual = USB_DESC_STATIC(devqual_descr),
101 .config = USB_DESC_STATIC(cfg_descr),
102 },
103
104 .langid = USB_DESC_STATIC(langid),
105 };
106
target_usb_setup(void)107 void target_usb_setup(void) {
108 usb_setup(&config);
109 printf("appending interfaces\n");
110 usb_append_interface_lowspeed(if_descriptor_lowspeed, sizeof(if_descriptor_lowspeed));
111 usb_append_interface_highspeed(if_descriptor_lowspeed, sizeof(if_descriptor_lowspeed));
112
113 usb_start();
114 }
115