diff options
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/usb/ch11.h (renamed from include/linux/usb/hub.h) | 47 | ||||
| -rw-r--r-- | include/linux/usb/hcd.h | 37 |
2 files changed, 43 insertions, 41 deletions
diff --git a/include/linux/usb/hub.h b/include/linux/usb/ch11.h index de8081f065e..35cb7357ff7 100644 --- a/include/linux/usb/hub.h +++ b/include/linux/usb/ch11.h @@ -1,13 +1,14 @@ -#ifndef __LINUX_HUB_H -#define __LINUX_HUB_H - /* - * Hub protocol and driver data structures. + * This file holds Hub protocol constants and data structures that are + * defined in chapter 11 (Hub Specification) of the USB 2.0 specification. * - * Some of these are known to the "virtual root hub" code - * in host controller drivers. + * It is used/shared between the USB core, the HCDs and couple of other USB + * drivers. */ +#ifndef __LINUX_HUB_H +#define __LINUX_HUB_H + #include <linux/list.h> #include <linux/workqueue.h> #include <linux/compiler.h> /* likely()/unlikely() */ @@ -162,44 +163,10 @@ enum hub_led_mode { INDICATOR_ALT_BLINK, INDICATOR_ALT_BLINK_OFF } __attribute__ ((packed)); -struct usb_device; - /* 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 -/* - * As of USB 2.0, full/low speed devices are segregated into trees. - * One type grows from USB 1.1 host controllers (OHCI, UHCI etc). - * The other type grows from high speed hubs when they connect to - * full/low speed devices using "Transaction Translators" (TTs). - * - * TTs should only be known to the hub driver, and high speed bus - * drivers (only EHCI for now). They affect periodic scheduling and - * sometimes control/bulk error recovery. - */ -struct usb_tt { - struct usb_device *hub; /* upstream highspeed hub */ - int multi; /* true means one TT per port */ - unsigned think_time; /* think time in ns */ - - /* for control/bulk error recovery (CLEAR_TT_BUFFER) */ - spinlock_t lock; - struct list_head clear_list; /* of usb_tt_clear */ - struct work_struct clear_work; -}; - -struct usb_tt_clear { - struct list_head clear_list; - unsigned tt; - u16 devinfo; - struct usb_hcd *hcd; - struct usb_host_endpoint *ep; -}; - -extern int usb_hub_clear_tt_buffer(struct urb *urb); -extern void usb_ep0_reinit(struct usb_device *); - #endif /* __LINUX_HUB_H */ diff --git a/include/linux/usb/hcd.h b/include/linux/usb/hcd.h index ca228f00b82..d268415b7a4 100644 --- a/include/linux/usb/hcd.h +++ b/include/linux/usb/hcd.h @@ -374,7 +374,42 @@ extern void usb_destroy_configuration(struct usb_device *dev); * HCD Root Hub support */ -#include <linux/usb/hub.h> +#include <linux/usb/ch11.h> + +/* + * As of USB 2.0, full/low speed devices are segregated into trees. + * One type grows from USB 1.1 host controllers (OHCI, UHCI etc). + * The other type grows from high speed hubs when they connect to + * full/low speed devices using "Transaction Translators" (TTs). + * + * TTs should only be known to the hub driver, and high speed bus + * drivers (only EHCI for now). They affect periodic scheduling and + * sometimes control/bulk error recovery. + */ + +struct usb_device; + +struct usb_tt { + struct usb_device *hub; /* upstream highspeed hub */ + int multi; /* true means one TT per port */ + unsigned think_time; /* think time in ns */ + + /* for control/bulk error recovery (CLEAR_TT_BUFFER) */ + spinlock_t lock; + struct list_head clear_list; /* of usb_tt_clear */ + struct work_struct clear_work; +}; + +struct usb_tt_clear { + struct list_head clear_list; + unsigned tt; + u16 devinfo; + struct usb_hcd *hcd; + struct usb_host_endpoint *ep; +}; + +extern int usb_hub_clear_tt_buffer(struct urb *urb); +extern void usb_ep0_reinit(struct usb_device *); /* (shifted) direction/type/recipient from the USB 2.0 spec, table 9.2 */ #define DeviceRequest \ |