270 lines
6.9 KiB
C
270 lines
6.9 KiB
C
/*
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* Copyright (c) 2006-2018, RT-Thread Development Team
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*
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* SPDX-License-Identifier: Apache-2.0
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*
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* Change Logs:
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* Date Author Notes
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* 2011-3-12 Yi Qiu first version
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*/
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#ifndef __RT_USB_HOST_H__
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#define __RT_USB_HOST_H__
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#ifdef __cplusplus
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extern "C" {
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#endif
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#include <rtthread.h>
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#include "usb_common.h"
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#define USB_MAX_DEVICE 0x20
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#define USB_MAX_INTERFACE 0x08
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#define USB_HUB_PORT_NUM 0x04
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#define SIZEOF_USB_REQUEST 0x08
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#define DEV_STATUS_IDLE 0x00
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#define DEV_STATUS_BUSY 0x01
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#define DEV_STATUS_ERROR 0x02
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#define UPIPE_STATUS_OK 0x00
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#define UPIPE_STATUS_STALL 0x01
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#define UPIPE_STATUS_ERROR 0x02
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#define USBH_PID_SETUP 0x00
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#define USBH_PID_DATA 0x01
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struct uhcd;
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struct uhintf;
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struct uhub;
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struct upipe;
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struct uclass_driver
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{
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rt_list_t list;
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int class_code;
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int subclass_code;
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rt_err_t (*enable)(void* arg);
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rt_err_t (*disable)(void* arg);
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void* user_data;
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};
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typedef struct uclass_driver* ucd_t;
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struct uprotocal
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{
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rt_list_t list;
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int pro_id;
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rt_err_t (*init)(void* arg);
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rt_err_t (*callback)(void* arg);
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};
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typedef struct uprotocal* uprotocal_t;
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struct uinstance
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{
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struct rt_device parent;
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struct udevice_descriptor dev_desc;
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ucfg_desc_t cfg_desc;
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struct uhcd *hcd;
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struct upipe * pipe_ep0_out;
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struct upipe * pipe_ep0_in;
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rt_list_t pipe;
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rt_uint8_t status;
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rt_uint8_t type;
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rt_uint8_t index;
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rt_uint8_t address;
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rt_uint8_t speed;
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rt_uint8_t max_packet_size;
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rt_uint8_t port;
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struct uhub* parent_hub;
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struct uhintf* intf[USB_MAX_INTERFACE];
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};
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typedef struct uinstance* uinst_t;
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struct uhintf
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{
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struct uinstance* device;
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uintf_desc_t intf_desc;
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ucd_t drv;
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void *user_data;
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};
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struct upipe
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{
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rt_list_t list;
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rt_uint8_t pipe_index;
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rt_uint32_t status;
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struct uendpoint_descriptor ep;
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uinst_t inst;
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func_callback callback;
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void* user_data;
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};
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typedef struct upipe* upipe_t;
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struct uhub
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{
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struct uhub_descriptor hub_desc;
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rt_uint8_t num_ports;
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rt_uint32_t port_status[USB_HUB_PORT_NUM];
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struct uinstance* child[USB_HUB_PORT_NUM];
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rt_bool_t is_roothub;
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rt_uint8_t buffer[8];
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struct uinstance* self;
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struct uhcd *hcd;
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};
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typedef struct uhub* uhub_t;
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struct uhcd_ops
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{
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rt_err_t (*reset_port) (rt_uint8_t port);
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int (*pipe_xfer) (upipe_t pipe, rt_uint8_t token, void* buffer, int nbytes, int timeout);
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rt_err_t (*open_pipe) (upipe_t pipe);
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rt_err_t (*close_pipe) (upipe_t pipe);
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};
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typedef struct uhcd_ops* uhcd_ops_t;
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struct uhcd
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{
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struct rt_device parent;
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uhcd_ops_t ops;
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rt_uint8_t num_ports;
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uhub_t roothub;
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};
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typedef struct uhcd* uhcd_t;
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enum uhost_msg_type
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{
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USB_MSG_CONNECT_CHANGE,
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USB_MSG_CALLBACK,
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};
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typedef enum uhost_msg_type uhost_msg_type;
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struct uhost_msg
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{
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uhost_msg_type type;
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union
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{
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struct uhub* hub;
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struct
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{
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func_callback function;
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void *context;
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}cb;
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}content;
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};
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typedef struct uhost_msg* uhost_msg_t;
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/* usb host system interface */
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rt_err_t rt_usb_host_init(void);
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void rt_usbh_hub_init(struct uhcd *hcd);
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/* usb host core interface */
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struct uinstance* rt_usbh_alloc_instance(uhcd_t uhcd);
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rt_err_t rt_usbh_attatch_instance(struct uinstance* device);
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rt_err_t rt_usbh_detach_instance(struct uinstance* device);
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rt_err_t rt_usbh_get_descriptor(struct uinstance* device, rt_uint8_t type, void* buffer, int nbytes);
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rt_err_t rt_usbh_set_configure(struct uinstance* device, int config);
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rt_err_t rt_usbh_set_address(struct uinstance* device);
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rt_err_t rt_usbh_set_interface(struct uinstance* device, int intf);
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rt_err_t rt_usbh_clear_feature(struct uinstance* device, int endpoint, int feature);
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rt_err_t rt_usbh_get_interface_descriptor(ucfg_desc_t cfg_desc, int num, uintf_desc_t* intf_desc);
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rt_err_t rt_usbh_get_endpoint_descriptor(uintf_desc_t intf_desc, int num, uep_desc_t* ep_desc);
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/* usb class driver interface */
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rt_err_t rt_usbh_class_driver_init(void);
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rt_err_t rt_usbh_class_driver_register(ucd_t drv);
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rt_err_t rt_usbh_class_driver_unregister(ucd_t drv);
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rt_err_t rt_usbh_class_driver_enable(ucd_t drv, void* args);
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rt_err_t rt_usbh_class_driver_disable(ucd_t drv, void* args);
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ucd_t rt_usbh_class_driver_find(int class_code, int subclass_code);
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/* usb class driver implement */
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ucd_t rt_usbh_class_driver_hub(void);
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ucd_t rt_usbh_class_driver_storage(void);
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/* usb hub interface */
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rt_err_t rt_usbh_hub_get_descriptor(struct uinstance* device, rt_uint8_t *buffer,
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rt_size_t size);
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rt_err_t rt_usbh_hub_get_status(struct uinstance* device, rt_uint32_t* buffer);
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rt_err_t rt_usbh_hub_get_port_status(uhub_t uhub, rt_uint16_t port,
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rt_uint32_t* buffer);
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rt_err_t rt_usbh_hub_clear_port_feature(uhub_t uhub, rt_uint16_t port,
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rt_uint16_t feature);
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rt_err_t rt_usbh_hub_set_port_feature(uhub_t uhub, rt_uint16_t port,
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rt_uint16_t feature);
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rt_err_t rt_usbh_hub_reset_port(uhub_t uhub, rt_uint16_t port);
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rt_err_t rt_usbh_event_signal(struct uhost_msg* msg);
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void rt_usbh_root_hub_connect_handler(struct uhcd *hcd, rt_uint8_t port, rt_bool_t isHS);
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void rt_usbh_root_hub_disconnect_handler(struct uhcd *hcd, rt_uint8_t port);
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/* usb host controller driver interface */
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rt_inline rt_err_t rt_usb_instance_add_pipe(uinst_t inst, upipe_t pipe)
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{
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RT_ASSERT(inst != RT_NULL);
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RT_ASSERT(pipe != RT_NULL);
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rt_list_insert_before(&inst->pipe, &pipe->list);
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return RT_EOK;
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}
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rt_inline upipe_t rt_usb_instance_find_pipe(uinst_t inst,rt_uint8_t ep_address)
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{
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rt_list_t * l;
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for(l = inst->pipe.next;l != &inst->pipe;l = l->next)
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{
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if(rt_list_entry(l,struct upipe,list)->ep.bEndpointAddress == ep_address)
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{
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return rt_list_entry(l,struct upipe,list);
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}
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}
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return RT_NULL;
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}
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rt_inline rt_err_t rt_usb_hcd_alloc_pipe(uhcd_t hcd, upipe_t* pipe, uinst_t inst, uep_desc_t ep)
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{
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*pipe = (upipe_t)rt_malloc(sizeof(struct upipe));
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if(*pipe == RT_NULL)
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{
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return RT_ERROR;
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}
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rt_memset(*pipe,0,sizeof(struct upipe));
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(*pipe)->inst = inst;
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rt_memcpy(&(*pipe)->ep,ep,sizeof(struct uendpoint_descriptor));
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return hcd->ops->open_pipe(*pipe);
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}
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rt_inline void rt_usb_pipe_add_callback(upipe_t pipe, func_callback callback)
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{
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pipe->callback = callback;
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}
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rt_inline rt_err_t rt_usb_hcd_free_pipe(uhcd_t hcd, upipe_t pipe)
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{
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RT_ASSERT(pipe != RT_NULL);
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hcd->ops->close_pipe(pipe);
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rt_free(pipe);
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return RT_EOK;
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}
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int rt_usb_hcd_pipe_xfer(uhcd_t hcd, upipe_t pipe, void* buffer, int nbytes, int timeout);
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rt_inline int rt_usb_hcd_setup_xfer(uhcd_t hcd, upipe_t pipe, ureq_t setup, int timeout)
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{
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return hcd->ops->pipe_xfer(pipe, USBH_PID_SETUP, (void *)setup, 8, timeout);
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}
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#ifdef __cplusplus
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}
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#endif
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#endif
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