/* SPDX-License-Identifier: GPL-2.0 */
/*
* USB IrDA Bridge Device Definition
*/
#ifndef __LINUX_USB_IRDA_H
#define __LINUX_USB_IRDA_H
/* This device should use Application-specific class */
#define USB_SUBCLASS_IRDA 0x02
/*-------------------------------------------------------------------------*/
/* Class-Specific requests (bRequest field) */
#define USB_REQ_CS_IRDA_RECEIVING 1
#define USB_REQ_CS_IRDA_CHECK_MEDIA_BUSY 3
#define USB_REQ_CS_IRDA_RATE_SNIFF 4
#define USB_REQ_CS_IRDA_UNICAST_LIST 5
#define USB_REQ_CS_IRDA_GET_CLASS_DESC 6
/*-------------------------------------------------------------------------*/
/* Class-Specific descriptor */
#define USB_DT_CS_IRDA 0x21
/*-------------------------------------------------------------------------*/
/* Data sizes */
#define USB_IRDA_DS_2048 (1 << 5)
#define USB_IRDA_DS_1024 (1 << 4)
#define USB_IRDA_DS_512 (1 << 3)
#define USB_IRDA_DS_256 (1 << 2)
#define USB_IRDA_DS_128 (1 << 1)
#define USB_IRDA_DS_64 (1 << 0)
/* Window sizes */
#define USB_IRDA_WS_7 (1 << 6)
#define USB_IRDA_WS_6 (1 << 5)
#define USB_IRDA_WS_5 (1 << 4)
#define USB_IRDA_WS_4 (1 << 3)
#define USB_IRDA_WS_3 (1 << 2)
#define USB_IRDA_WS_2 (1 << 1)
#define USB_IRDA_WS_1 (1 << 0)
/* Min turnaround times in usecs */
#define USB_IRDA_MTT_0 (1 << 7)
#define USB_IRDA_MTT_10 (1 << 6)
#define USB_IRDA_MTT_50 (1 << 5)
#define USB_IRDA_MTT_100 (1 << 4)
#define USB_IRDA_MTT_500 (1 << 3)
#define USB_IRDA_MTT_1000 (1 << 2)
#define USB_IRDA_MTT_5000 (1 << 1)
#define USB_IRDA_MTT_10000 (1 << 0)
/* Baud rates */
#define USB_IRDA_BR_4000000 (1 << 8)
#define USB_IRDA_BR_1152000 (1 << 7)
#define USB_IRDA_BR_576000 (1 << 6)
#define USB_IRDA_BR_115200 (1 << 5)
#define USB_IRDA_BR_57600 (1 << 4)
#define USB_IRDA_BR_38400 (1 << 3)
#define USB_IRDA_BR_19200 (1 << 2)
#define USB_IRDA_BR_9600 (1 << 1)
#define USB_IRDA_BR_2400 (1 << 0)
/* Additional BOFs */
#define USB_IRDA_AB_0 (1 << 7)
#define USB_IRDA_AB_1 (1 << 6)
#define USB_IRDA_AB_2 (1 << 5)
#define USB_IRDA_AB_3 (1 << 4)
#define USB_IRDA_AB_6 (1 << 3)
#define USB_IRDA_AB_12 (1 << 2)
#define USB_IRDA_AB_24 (1 << 1)
#define USB_IRDA_AB_48 (1 << 0)
/* IRDA Rate Sniff */
#define USB_IRDA_RATE_SNIFF 1
/*-------------------------------------------------------------------------*/
struct usb_irda_cs_descriptor {
__u8 bLength;
__u8 bDescriptorType;
__le16 bcdSpecRevision;
__u8 bmDataSize;
__u8 bmWindowSize;
__u8 bmMinTurnaroundTime;
__le16 wBaudRate;
__u8 bmAdditionalBOFs;
__u8 bIrdaRateSniff;
__u8 bMaxUnicastList;
} __attribute__ ((packed));
/*-------------------------------------------------------------------------*/
/* Data Format */
#define USB_IRDA_STATUS_MEDIA_BUSY (1 << 7)
/* The following is a 4-bit value used for both
* inbound and outbound headers:
*
* 0 - speed ignored
* 1 - 2400 bps
* 2 - 9600 bps
* 3 - 19200 bps
* 4 - 38400 bps
* 5 - 57600 bps
* 6 - 115200 bps
* 7 - 576000 bps
* 8 - 1.152 Mbps
* 9 - 4 Mbps
* 10..15 - Reserved
*/
#define USB_IRDA_STATUS_LINK_SPEED 0x0f
#define USB_IRDA_LS_NO_CHANGE 0
#define USB_IRDA_LS_2400 1
#define USB_IRDA_LS_9600 2
#define USB_IRDA_LS_19200 3
#define USB_IRDA_LS_38400 4
#define USB_IRDA_LS_57600 5
#define USB_IRDA_LS_115200 6
#define USB_IRDA_LS_576000 7
#define USB_IRDA_LS_1152000 8
#define USB_IRDA_LS_4000000 9
/* The following is a 4-bit value used only for
* outbound header:
*
* 0 - No change (BOF ignored)
* 1 - 48 BOFs
* 2 - 24 BOFs
* 3 - 12 BOFs
* 4 - 6 BOFs
* 5 - 3 BOFs
* 6 - 2 BOFs
* 7 - 1 BOFs
* 8 - 0 BOFs
* 9..15 - Reserved
*/
#define USB_IRDA_EXTRA_BOFS 0xf0
struct usb_irda_inbound_header {
__u8 bmStatus;
};
struct usb_irda_outbound_header {
__u8 bmChange;
};
#endif /* __LINUX_USB_IRDA_H */
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