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 90 struct 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 - 5 mbps 123 * 10..15 - Reserved 124 */ 125 #define USB_IRDA_STATUS_LINK_SPEED 0x0f 126 127 /* The following is a 4-bit value used only for 128 * outbound header: 129 * 130 * 0 - No change (BOF ignored) 131 * 1 - 48 BOFs 132 * 2 - 24 BOFs 133 * 3 - 12 BOFs 134 * 4 - 6 BOFs 135 * 5 - 3 BOFs 136 * 6 - 2 BOFs 137 * 7 - 1 BOFs 138 * 8 - 0 BOFs 139 * 9..15 - Reserved 140 */ 141 #define USB_IRDA_EXTRA_BOFS 0xf0 142 143 struct usb_irda_inbound_header { 144 __u8 bmStatus; 145 }; 146 147 struct usb_irda_outbound_header { 148 __u8 bmChange; 149 }; 150 151 #endif /* __LINUX_USB_IRDA_H */ 152 153