215 lines
5.8 KiB
C
215 lines
5.8 KiB
C
/*
|
|
* 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 <linux/types.h> /* __u8 etc */
|
|
|
|
/*
|
|
* Hub request types
|
|
*/
|
|
|
|
#define USB_RT_HUB (USB_TYPE_CLASS | USB_RECIP_DEVICE)
|
|
#define USB_RT_PORT (USB_TYPE_CLASS | USB_RECIP_OTHER)
|
|
|
|
/*
|
|
* 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_LINK_STATE 25
|
|
#define USB_PORT_FEAT_C_CONFIG_ERR 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
|
|
|
|
/*
|
|
* Hub Status and Hub Change results
|
|
* See USB 2.0 spec Table 11-19 and Table 11-20
|
|
*/
|
|
struct usb_port_status {
|
|
__le16 wPortStatus;
|
|
__le16 wPortChange;
|
|
} __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 */
|
|
#define USB_PORT_STAT_SUPER_SPEED 0x8000 /* Linux-internal */
|
|
|
|
/*
|
|
* Additions to wPortStatus bit field from USB 3.0
|
|
* See USB 3.0 spec Table 10-10
|
|
*/
|
|
#define USB_PORT_STAT_LINK_STATE 0x01e0
|
|
#define USB_SS_PORT_STAT_POWER 0x0200
|
|
#define USB_PORT_STAT_SPEED_5GBPS 0x0000
|
|
/* Valid only if port is enabled */
|
|
|
|
/*
|
|
* Definitions for PORT_LINK_STATE values
|
|
* (bits 5-8) in wPortStatus
|
|
*/
|
|
#define USB_SS_PORT_LS_U0 0x0000
|
|
#define USB_SS_PORT_LS_U1 0x0020
|
|
#define USB_SS_PORT_LS_U2 0x0040
|
|
#define USB_SS_PORT_LS_U3 0x0060
|
|
#define USB_SS_PORT_LS_SS_DISABLED 0x0080
|
|
#define USB_SS_PORT_LS_RX_DETECT 0x00a0
|
|
#define USB_SS_PORT_LS_SS_INACTIVE 0x00c0
|
|
#define USB_SS_PORT_LS_POLLING 0x00e0
|
|
#define USB_SS_PORT_LS_RECOVERY 0x0100
|
|
#define USB_SS_PORT_LS_HOT_RESET 0x0120
|
|
#define USB_SS_PORT_LS_COMP_MOD 0x0140
|
|
#define USB_SS_PORT_LS_LOOPBACK 0x0160
|
|
|
|
/*
|
|
* wPortChange bit field
|
|
* See USB 2.0 spec Table 11-22
|
|
* Bits 0 to 4 shown, bits 5 to 15 are reserved
|
|
*/
|
|
#define USB_PORT_STAT_C_CONNECTION 0x0001
|
|
#define USB_PORT_STAT_C_ENABLE 0x0002
|
|
#define USB_PORT_STAT_C_SUSPEND 0x0004
|
|
#define USB_PORT_STAT_C_OVERCURRENT 0x0008
|
|
#define USB_PORT_STAT_C_RESET 0x0010
|
|
#define USB_PORT_STAT_C_L1 0x0020
|
|
|
|
/*
|
|
* wHubCharacteristics (masks)
|
|
* See USB 2.0 spec Table 11-13, offset 3
|
|
*/
|
|
#define HUB_CHAR_LPSM 0x0003 /* D1 .. D0 */
|
|
#define HUB_CHAR_COMPOUND 0x0004 /* D2 */
|
|
#define HUB_CHAR_OCPM 0x0018 /* D4 .. D3 */
|
|
#define HUB_CHAR_TTTT 0x0060 /* D6 .. D5 */
|
|
#define HUB_CHAR_PORTIND 0x0080 /* D7 */
|
|
|
|
struct usb_hub_status {
|
|
__le16 wHubStatus;
|
|
__le16 wHubChange;
|
|
} __attribute__ ((packed));
|
|
|
|
/*
|
|
* Hub Status & Hub Change bit masks
|
|
* See USB 2.0 spec Table 11-19 and Table 11-20
|
|
* Bits 0 and 1 for wHubStatus and wHubChange
|
|
* Bits 2 to 15 are reserved for both
|
|
*/
|
|
#define HUB_STATUS_LOCAL_POWER 0x0001
|
|
#define HUB_STATUS_OVERCURRENT 0x0002
|
|
#define HUB_CHANGE_LOCAL_POWER 0x0001
|
|
#define HUB_CHANGE_OVERCURRENT 0x0002
|
|
|
|
|
|
/*
|
|
* Hub descriptor
|
|
* See USB 2.0 spec Table 11-13
|
|
*/
|
|
|
|
#define USB_DT_HUB (USB_TYPE_CLASS | 0x09)
|
|
#define USB_DT_HUB_NONVAR_SIZE 7
|
|
|
|
struct usb_hub_descriptor {
|
|
__u8 bDescLength;
|
|
__u8 bDescriptorType;
|
|
__u8 bNbrPorts;
|
|
__le16 wHubCharacteristics;
|
|
__u8 bPwrOn2PwrGood;
|
|
__u8 bHubContrCurrent;
|
|
/* add 1 bit for hub status change; round to bytes */
|
|
__u8 DeviceRemovable[(USB_MAXCHILDREN + 1 + 7) / 8];
|
|
__u8 PortPwrCtrlMask[(USB_MAXCHILDREN + 1 + 7) / 8];
|
|
} __attribute__ ((packed));
|
|
|
|
|
|
/* port indicator status selectors, tables 11-7 and 11-25 */
|
|
#define HUB_LED_AUTO 0
|
|
#define HUB_LED_AMBER 1
|
|
#define HUB_LED_GREEN 2
|
|
#define HUB_LED_OFF 3
|
|
|
|
enum hub_led_mode {
|
|
INDICATOR_AUTO = 0,
|
|
INDICATOR_CYCLE,
|
|
/* software blinks for attention: software, hardware, reserved */
|
|
INDICATOR_GREEN_BLINK, INDICATOR_GREEN_BLINK_OFF,
|
|
INDICATOR_AMBER_BLINK, INDICATOR_AMBER_BLINK_OFF,
|
|
INDICATOR_ALT_BLINK, INDICATOR_ALT_BLINK_OFF
|
|
} __attribute__ ((packed));
|
|
|
|
/* Transaction Translator Think Times, in bits */
|
|
#define HUB_TTTT_8_BITS 0x00
|
|
#define HUB_TTTT_16_BITS 0x20
|
|
#define HUB_TTTT_24_BITS 0x40
|
|
#define HUB_TTTT_32_BITS 0x60
|
|
|
|
#endif /* __LINUX_CH11_H */
|