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178 lines
3.6 KiB
178 lines
3.6 KiB
// SPDX-License-Identifier: GPL-2.0+ |
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/* |
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* Copyright (C) 2015 Karol Kosik <[email protected]> |
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* Copyright (C) 2015-2016 Samsung Electronics |
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* Igor Kotrasinski <[email protected]> |
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* Krzysztof Opasiak <[email protected]> |
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*/ |
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#ifndef __USBIP_VUDC_H |
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#define __USBIP_VUDC_H |
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#include <linux/platform_device.h> |
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#include <linux/usb.h> |
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#include <linux/usb/gadget.h> |
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#include <linux/usb/ch9.h> |
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#include <linux/list.h> |
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#include <linux/timer.h> |
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#include <linux/time.h> |
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#include <linux/sysfs.h> |
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#include "usbip_common.h" |
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#define GADGET_NAME "usbip-vudc" |
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struct vep { |
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struct usb_ep ep; |
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unsigned type:2; /* type, as USB_ENDPOINT_XFER_* */ |
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char name[8]; /* space for ep name */ |
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const struct usb_endpoint_descriptor *desc; |
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struct usb_gadget *gadget; |
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struct list_head req_queue; /* Request queue */ |
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unsigned halted:1; |
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unsigned wedged:1; |
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unsigned already_seen:1; |
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unsigned setup_stage:1; |
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}; |
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struct vrequest { |
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struct usb_request req; |
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struct vudc *udc; |
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struct list_head req_entry; /* Request queue */ |
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}; |
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struct urbp { |
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struct urb *urb; |
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struct vep *ep; |
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struct list_head urb_entry; /* urb queue */ |
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unsigned long seqnum; |
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unsigned type:2; /* for tx, since ep type can change after */ |
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unsigned new:1; |
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}; |
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struct v_unlink { |
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unsigned long seqnum; |
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__u32 status; |
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}; |
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enum tx_type { |
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TX_UNLINK, |
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TX_SUBMIT, |
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}; |
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struct tx_item { |
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struct list_head tx_entry; |
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enum tx_type type; |
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union { |
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struct urbp *s; |
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struct v_unlink *u; |
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}; |
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}; |
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enum tr_state { |
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VUDC_TR_RUNNING, |
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VUDC_TR_IDLE, |
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VUDC_TR_STOPPED, |
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}; |
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struct transfer_timer { |
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struct timer_list timer; |
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enum tr_state state; |
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unsigned long frame_start; |
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int frame_limit; |
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}; |
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struct vudc { |
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struct usb_gadget gadget; |
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struct usb_gadget_driver *driver; |
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struct platform_device *pdev; |
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struct usb_device_descriptor dev_desc; |
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struct usbip_device ud; |
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struct transfer_timer tr_timer; |
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struct timespec64 start_time; |
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struct list_head urb_queue; |
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spinlock_t lock_tx; |
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struct list_head tx_queue; |
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wait_queue_head_t tx_waitq; |
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spinlock_t lock; |
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struct vep *ep; |
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int address; |
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u16 devstatus; |
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unsigned pullup:1; |
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unsigned connected:1; |
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unsigned desc_cached:1; |
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}; |
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struct vudc_device { |
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struct platform_device *pdev; |
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struct list_head dev_entry; |
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}; |
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extern const struct attribute_group *vudc_groups[]; |
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/* visible everywhere */ |
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static inline struct vep *to_vep(struct usb_ep *_ep) |
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{ |
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return container_of(_ep, struct vep, ep); |
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} |
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static inline struct vrequest *to_vrequest( |
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struct usb_request *_req) |
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{ |
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return container_of(_req, struct vrequest, req); |
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} |
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static inline struct vudc *usb_gadget_to_vudc( |
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struct usb_gadget *_gadget) |
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{ |
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return container_of(_gadget, struct vudc, gadget); |
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} |
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static inline struct vudc *ep_to_vudc(struct vep *ep) |
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{ |
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return container_of(ep->gadget, struct vudc, gadget); |
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} |
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/* vudc_sysfs.c */ |
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int get_gadget_descs(struct vudc *udc); |
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/* vudc_tx.c */ |
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int v_tx_loop(void *data); |
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void v_enqueue_ret_unlink(struct vudc *udc, __u32 seqnum, __u32 status); |
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void v_enqueue_ret_submit(struct vudc *udc, struct urbp *urb_p); |
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/* vudc_rx.c */ |
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int v_rx_loop(void *data); |
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/* vudc_transfer.c */ |
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void v_init_timer(struct vudc *udc); |
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void v_start_timer(struct vudc *udc); |
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void v_kick_timer(struct vudc *udc, unsigned long time); |
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void v_stop_timer(struct vudc *udc); |
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/* vudc_dev.c */ |
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struct urbp *alloc_urbp(void); |
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void free_urbp_and_urb(struct urbp *urb_p); |
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struct vep *vudc_find_endpoint(struct vudc *udc, u8 address); |
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struct vudc_device *alloc_vudc_device(int devid); |
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void put_vudc_device(struct vudc_device *udc_dev); |
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int vudc_probe(struct platform_device *pdev); |
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int vudc_remove(struct platform_device *pdev); |
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#endif /* __USBIP_VUDC_H */
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