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#ifndef __LINUX_HUB_H
#define __LINUX_HUB_H
#include <linux/list.h>
/*
* 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 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
#define USB_PORT_FEAT_OVER_CURRENT 3
#define USB_PORT_FEAT_RESET 4
#define USB_PORT_FEAT_POWER 8
#define USB_PORT_FEAT_LOWSPEED 9
#define USB_PORT_FEAT_HIGHSPEED 10
#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
/*
* Hub Status and Hub Change results
* See USB 2.0 spec Table 11-19 and Table 11-20
*/
struct usb_port_status {
__u16 wPortStatus;
__u16 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
/* bits 5 for 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 */
/*
* 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
/*
* 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 {
__u16 wHubStatus;
__u16 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
*/
struct usb_hub_descriptor {
__u8 bDescLength;
__u8 bDescriptorType;
__u8 bNbrPorts;
__u16 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));
struct usb_device;
struct usb_hub {
struct usb_device *dev;
struct urb *urb; /* Interrupt polling pipe */
char buffer[(USB_MAXCHILDREN + 1 + 7) / 8]; /* add 1 bit for hub status change */
/* and add 7 bits to round up to byte boundary */
int error;
int nerrors;
struct list_head hub_list;
struct list_head event_list;
struct usb_hub_descriptor *descriptor;
struct semaphore khubd_sem;
};
#endif /* __LINUX_HUB_H */
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