isa0060/serio0/input0 #ˆl–äY>”JC]Ši@¹p"¸ÛêbÑ¿Æ ƒ|-?ÂÅÄ#½/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ /* * This file holds Hub protocol constants and data structures that are * defined in chapter 11 (Hub Specification) of the USB 2.0 specification. * * It is used/shared between the USB core, the HCDs and couple of other USB * drivers. */ #ifndef __LINUX_CH11_H #define __LINUX_CH11_H #include /* __u8 etc */ /* This is arbitrary. * From USB 2.0 spec Table 11-13, offset 7, a hub can * have up to 255 ports. The most yet reported is 10. * * Current Wireless USB host hardware (Intel i1480 for example) allows * up to 22 devices to connect. Upcoming hardware might raise that * limit. Because the arrays need to add a bit for hub status data, we * use 31, so plus one evens out to four bytes. */ #define USB_MAXCHILDREN 31 /* See USB 3.1 spec Table 10-5 */ #define USB_SS_MAXPORTS 15 /* * Hub request types */ #define USB_RT_HUB (USB_TYPE_CLASS | USB_RECIP_DEVICE) #define USB_RT_PORT (USB_TYPE_CLASS | USB_RECIP_OTHER) /* * Port status type for GetPortStatus requests added in USB 3.1 * See USB 3.1 spec Table 10-12 */ #define HUB_PORT_STATUS 0 #define HUB_PORT_PD_STATUS 1 #define HUB_EXT_PORT_STATUS 2 /* * Hub class requests * See USB 2.0 spec Table 11-16 */ #define HUB_CLEAR_TT_BUFFER 8 #define HUB_RESET_TT 9 #define HUB_GET_TT_STATE 10 #define HUB_STOP_TT 11 /* * Hub class additional requests defined by USB 3.0 spec * See USB 3.0 spec Table 10-6 */ #define HUB_SET_DEPTH 12 #define HUB_GET_PORT_ERR_COUNT 13 /* * Hub Class feature numbers * See USB 2.0 spec Table 11-17 */ #define C_HUB_LOCAL_POWER 0 #define C_HUB_OVER_CURRENT 1 /* * Port feature numbers * See USB 2.0 spec Table 11-17 */ #define USB_PORT_FEAT_CONNECTION 0 #define USB_PORT_FEAT_ENABLE 1 #define USB_PORT_FEAT_SUSPEND 2 /* L2 suspend */ #define USB_PORT_FEAT_OVER_CURRENT 3 #define USB_PORT_FEAT_RESET 4 #define USB_PORT_FEAT_L1 5 /* L1 suspend */ #define USB_PORT_FEAT_POWER 8 #define USB_PORT_FEAT_LOWSPEED 9 /* Should never be used */ #define USB_PORT_FEAT_C_CONNECTION 16 #define USB_PORT_FEAT_C_ENABLE 17 #define USB_PORT_FEAT_C_SUSPEND 18 #define USB_PORT_FEAT_C_OVER_CURRENT 19 #define USB_PORT_FEAT_C_RESET 20 #define USB_PORT_FEAT_TEST 21 #define USB_PORT_FEAT_INDICATOR 22 #define USB_PORT_FEAT_C_PORT_L1 23 /* * Port feature selectors added by USB 3.0 spec. * See USB 3.0 spec Table 10-7 */ #define USB_PORT_FEAT_LINK_STATE 5 #define USB_PORT_FEAT_U1_TIMEOUT 23 #define USB_PORT_FEAT_U2_TIMEOUT 24 #define USB_PORT_FEAT_C_PORT_LINK_STATE 25 #define USB_PORT_FEAT_C_PORT_CONFIG_ERROR 26 #define USB_PORT_FEAT_REMOTE_WAKE_MASK 27 #define USB_PORT_FEAT_BH_PORT_RESET 28 #define USB_PORT_FEAT_C_BH_PORT_RESET 29 #define USB_PORT_FEAT_FORCE_LINKPM_ACCEPT 30 #define USB_PORT_LPM_TIMEOUT(p) (((p) & 0xff) << 8) /* USB 3.0 hub remote wake mask bits, see table 10-14 */ #define USB_PORT_FEAT_REMOTE_WAKE_CONNECT (1 << 8) #define USB_PORT_FEAT_REMOTE_WAKE_DISCONNECT (1 << 9) #define USB_PORT_FEAT_REMOTE_WAKE_OVER_CURRENT (1 << 10) /* * Hub Status and Hub Change results * See USB 2.0 spec Table 11-19 and Table 11-20 * USB 3.1 extends the port status request and may return 4 additional bytes. * See USB 3.1 spec section 10.16.2.6 Table 10-12 and 10-15 */ struct usb_port_status { __le16 wPortStatus; __le16 wPortChange; __le32 dwExtPortStatus; } __attribute__ ((packed)); /* * wPortStatus bit field * See USB 2.0 spec Table 11-21 */ #define USB_PORT_STAT_CONNECTION 0x0001 #define USB_PORT_STAT_ENABLE 0x0002 #define USB_PORT_STAT_SUSPEND 0x0004 #define USB_PORT_STAT_OVERCURRENT 0x0008 #define USB_PORT_STAT_RESET 0x0010 #define USB_PORT_STAT_L1 0x0020 /* bits 6 to 7 are reserved */ #define USB_PORT_STAT_POWER 0x0100 #define USB_PORT_STAT_LOW_SPEED 0x0200 #define USB_PORT_STAT_HIGH_SPEED 0x0400 #define USB_PORT_STAT_TEST 0x0800 #define USB_PORT_STAT_INDICATOR 0x1000 /* bits 13 to 15 are reserved */ /* * A