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#ifndef __USB_HOST_HUB_H__
#define __USB_HOST_HUB_H__
/*
* Hub protocol and driver data structures.
*
* Some of these are known to the "virtual root hub" code
* in host controller drivers.
*/
#include <hal_osal.h>
#include "usb_host_common.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 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 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
/*
* wPortStatus bit field
* See USB 2.0 spec Table 11-21
*/
#define USB_PORT_STAT_CONNECTION 0x0001 //当前的连接状态
#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 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 */
/*
* 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 //连接状态变化
#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 */
/*
* 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
/*
* Hub Status and Hub Change results
* See USB 2.0 spec Table 11-19 and Table 11-20
*/
struct __attribute__((packed)) usb_port_status
{
__u16 wPortStatus;
__u16 wPortChange;
} ;
struct __attribute__((packed)) usb_hub_status
{
__u16 wHubStatus;
__u16 wHubChange;
};
struct __attribute__((packed)) 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];
} ;
/* 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
};
struct usb_host_virt_dev;
/*
* 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_host_virt_dev *hub; /* upstream highspeed hub */
int multi; /* true means one TT per port */
/* for control/bulk error recovery (CLEAR_TT_BUFFER) */
__u32 lock;
struct list_head clear_list; /* of usb_tt_clear */
//struct work_struct kevent;
};
struct usb_tt_clear
{
struct list_head clear_list;
unsigned tt;
u16 devinfo;
};
/// extern void usb_hub_tt_clear_buffer (struct usb_host_virt_dev *dev, int pipe);
#define STATUS_URB_BUFF_LEN 8
struct usb_hub
{
//struct device *intfdev; /* the "interface" device */
struct usb_host_virt_dev *hdev;
struct urb *urb; //就是用来查询status的urb//for interrupt polling pipe
/* buffer for urb ... with extra space in case of babble */
//char (*buffer)[8]; //是status urb和 hub交互status的中介
char status_urb_ubff[STATUS_URB_BUFF_LEN];
u32 buffer_dma; /* DMA address for buffer */
union
{
struct usb_hub_status hub;
struct usb_port_status port;
} *status; /* buffer for status reports */
int error; /* last reported error */
int nerrors; /* track consecutive errors */
// struct list_head event_list; /* hubs w/data or errs ready */
u32 event_bits[1]; /* status change bitmask */
u32 change_bits[1]; /* ports with logical connect status change */
u32 busy_bits[1]; /* ports being reset */
struct usb_hub_descriptor *descriptor; /* class descriptor */
struct usb_tt tt; /* Transaction Translator */
u8 power_budget; /* in 2mA units; or zero */
unsigned quiescing: 1;
unsigned activating: 1;
unsigned resume_root_hub: 1;
unsigned has_indicators: 1;
enum hub_led_mode indicator[USB_MAXCHILDREN];
//struct work_struct leds;
//USB_OS_KERNEL_EVENT *HubStatusSemi; /* hub status thread的睡眠和唤醒 */
//USB_OS_KERNEL_EVENT *notify_complete; /* 同步thread创建/删除 */
hal_sem_t HubStatusSemi; /* hub status thread的睡眠和唤醒 */
hal_sem_t notify_complete; /* 同步thread创建/删除 */
rt_thread_t thread;
__u32 HubStatusThrdId; /* hub线程ID */
__u8 HubRemove; /* flag. Hub是否拔出 */
__u32 hub_req_busy; /* 正在发送urb请求 */
};
#endif
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