1/* SPDX-License-Identifier: GPL-2.0 */
2/*
3 * USB IrDA Bridge Device Definition
4 */
5
6#ifndef __LINUX_USB_IRDA_H
7#define __LINUX_USB_IRDA_H
8
9/* This device should use Application-specific class */
10
11#define USB_SUBCLASS_IRDA 0x02
12
13/*-------------------------------------------------------------------------*/
14
15/* Class-Specific requests (bRequest field) */
16
17#define USB_REQ_CS_IRDA_RECEIVING 1
18#define USB_REQ_CS_IRDA_CHECK_MEDIA_BUSY 3
19#define USB_REQ_CS_IRDA_RATE_SNIFF 4
20#define USB_REQ_CS_IRDA_UNICAST_LIST 5
21#define USB_REQ_CS_IRDA_GET_CLASS_DESC 6
22
23/*-------------------------------------------------------------------------*/
24
25/* Class-Specific descriptor */
26
27#define USB_DT_CS_IRDA 0x21
28
29/*-------------------------------------------------------------------------*/
30
31/* Data sizes */
32
33#define USB_IRDA_DS_2048 (1 << 5)
34#define USB_IRDA_DS_1024 (1 << 4)
35#define USB_IRDA_DS_512 (1 << 3)
36#define USB_IRDA_DS_256 (1 << 2)
37#define USB_IRDA_DS_128 (1 << 1)
38#define USB_IRDA_DS_64 (1 << 0)
39
40/* Window sizes */
41
42#define USB_IRDA_WS_7 (1 << 6)
43#define USB_IRDA_WS_6 (1 << 5)
44#define USB_IRDA_WS_5 (1 << 4)
45#define USB_IRDA_WS_4 (1 << 3)
46#define USB_IRDA_WS_3 (1 << 2)
47#define USB_IRDA_WS_2 (1 << 1)
48#define USB_IRDA_WS_1 (1 << 0)
49
50/* Min turnaround times in usecs */
51
52#define USB_IRDA_MTT_0 (1 << 7)
53#define USB_IRDA_MTT_10 (1 << 6)
54#define USB_IRDA_MTT_50 (1 << 5)
55#define USB_IRDA_MTT_100 (1 << 4)
56#define USB_IRDA_MTT_500 (1 << 3)
57#define USB_IRDA_MTT_1000 (1 << 2)
58#define USB_IRDA_MTT_5000 (1 << 1)
59#define USB_IRDA_MTT_10000 (1 << 0)
60
61/* Baud rates */
62
63#define USB_IRDA_BR_4000000 (1 << 8)
64#define USB_IRDA_BR_1152000 (1 << 7)
65#define USB_IRDA_BR_576000 (1 << 6)
66#define USB_IRDA_BR_115200 (1 << 5)
67#define USB_IRDA_BR_57600 (1 << 4)
68#define USB_IRDA_BR_38400 (1 << 3)
69#define USB_IRDA_BR_19200 (1 << 2)
70#define USB_IRDA_BR_9600 (1 << 1)
71#define USB_IRDA_BR_2400 (1 << 0)
72
73/* Additional BOFs */
74
75#define USB_IRDA_AB_0 (1 << 7)
76#define USB_IRDA_AB_1 (1 << 6)
77#define USB_IRDA_AB_2 (1 << 5)
78#define USB_IRDA_AB_3 (1 << 4)
79#define USB_IRDA_AB_6 (1 << 3)
80#define USB_IRDA_AB_12 (1 << 2)
81#define USB_IRDA_AB_24 (1 << 1)
82#define USB_IRDA_AB_48 (1 << 0)
83
84/* IRDA Rate Sniff */
85
86#define USB_IRDA_RATE_SNIFF 1
87
88/*-------------------------------------------------------------------------*/
89
90struct usb_irda_cs_descriptor {
91 __u8 bLength;
92 __u8 bDescriptorType;
93
94 __le16 bcdSpecRevision;
95 __u8 bmDataSize;
96 __u8 bmWindowSize;
97 __u8 bmMinTurnaroundTime;
98 __le16 wBaudRate;
99 __u8 bmAdditionalBOFs;
100 __u8 bIrdaRateSniff;
101 __u8 bMaxUnicastList;
102} __attribute__ ((packed));
103
104/*-------------------------------------------------------------------------*/
105
106/* Data Format */
107
108#define USB_IRDA_STATUS_MEDIA_BUSY (1 << 7)
109
110/* The following is a 4-bit value used for both
111 * inbound and outbound headers:
112 *
113 * 0 - speed ignored
114 * 1 - 2400 bps
115 * 2 - 9600 bps
116 * 3 - 19200 bps
117 * 4 - 38400 bps
118 * 5 - 57600 bps
119 * 6 - 115200 bps
120 * 7 - 576000 bps
121 * 8 - 1.152 Mbps
122 * 9 - 4 Mbps
123 * 10..15 - Reserved
124 */
125#define USB_IRDA_STATUS_LINK_SPEED 0x0f
126
127#define USB_IRDA_LS_NO_CHANGE 0
128#define USB_IRDA_LS_2400 1
129#define USB_IRDA_LS_9600 2
130#define USB_IRDA_LS_19200 3
131#define USB_IRDA_LS_38400 4
132#define USB_IRDA_LS_57600 5
133#define USB_IRDA_LS_115200 6
134#define USB_IRDA_LS_576000 7
135#define USB_IRDA_LS_1152000 8
136#define USB_IRDA_LS_4000000 9
137
138/* The following is a 4-bit value used only for
139 * outbound header:
140 *
141 * 0 - No change (BOF ignored)
142 * 1 - 48 BOFs
143 * 2 - 24 BOFs
144 * 3 - 12 BOFs
145 * 4 - 6 BOFs
146 * 5 - 3 BOFs
147 * 6 - 2 BOFs
148 * 7 - 1 BOFs
149 * 8 - 0 BOFs
150 * 9..15 - Reserved
151 */
152#define USB_IRDA_EXTRA_BOFS 0xf0
153
154struct usb_irda_inbound_header {
155 __u8 bmStatus;
156};
157
158struct usb_irda_outbound_header {
159 __u8 bmChange;
160};
161
162#endif /* __LINUX_USB_IRDA_H */
163
164

source code of linux/include/linux/usb/irda.h