diff options
Diffstat (limited to 'drivers/usb/dwc3/gadget.h')
| -rw-r--r-- | drivers/usb/dwc3/gadget.h | 127 |
1 files changed, 127 insertions, 0 deletions
diff --git a/drivers/usb/dwc3/gadget.h b/drivers/usb/dwc3/gadget.h new file mode 100644 index 0000000000..3ce748c0b4 --- /dev/null +++ b/drivers/usb/dwc3/gadget.h @@ -0,0 +1,127 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/** + * gadget.h - DesignWare USB3 DRD Gadget Header + * + * Copyright (C) 2015 Texas Instruments Incorporated - http://www.ti.com + * + * Authors: Felipe Balbi <balbi@ti.com>, + * Sebastian Andrzej Siewior <bigeasy@linutronix.de> + * + * Taken from Linux Kernel v3.19-rc1 (drivers/usb/dwc3/gadget.h) and ported + * to uboot. + * + * commit 7a60855972 : usb: dwc3: gadget: fix set_halt() bug with pending + transfers + * + */ + +#ifndef __DRIVERS_USB_DWC3_GADGET_H +#define __DRIVERS_USB_DWC3_GADGET_H + +#include <usb/gadget.h> +#include <linux/list.h> +#include "io.h" + +struct dwc3; +#define to_dwc3_ep(ep) (container_of(ep, struct dwc3_ep, endpoint)) +#define gadget_to_dwc(g) (container_of(g, struct dwc3, gadget)) + +/* DEPCFG parameter 1 */ +#define DWC3_DEPCFG_INT_NUM(n) ((n) << 0) +#define DWC3_DEPCFG_XFER_COMPLETE_EN (1 << 8) +#define DWC3_DEPCFG_XFER_IN_PROGRESS_EN (1 << 9) +#define DWC3_DEPCFG_XFER_NOT_READY_EN (1 << 10) +#define DWC3_DEPCFG_FIFO_ERROR_EN (1 << 11) +#define DWC3_DEPCFG_STREAM_EVENT_EN (1 << 13) +#define DWC3_DEPCFG_BINTERVAL_M1(n) ((n) << 16) +#define DWC3_DEPCFG_STREAM_CAPABLE (1 << 24) +#define DWC3_DEPCFG_EP_NUMBER(n) ((n) << 25) +#define DWC3_DEPCFG_BULK_BASED (1 << 30) +#define DWC3_DEPCFG_FIFO_BASED (1 << 31) + +/* DEPCFG parameter 0 */ +#define DWC3_DEPCFG_EP_TYPE(n) ((n) << 1) +#define DWC3_DEPCFG_MAX_PACKET_SIZE(n) ((n) << 3) +#define DWC3_DEPCFG_FIFO_NUMBER(n) ((n) << 17) +#define DWC3_DEPCFG_BURST_SIZE(n) ((n) << 22) +#define DWC3_DEPCFG_DATA_SEQ_NUM(n) ((n) << 26) +/* This applies for core versions earlier than 1.94a */ +#define DWC3_DEPCFG_IGN_SEQ_NUM (1 << 31) +/* These apply for core versions 1.94a and later */ +#define DWC3_DEPCFG_ACTION_INIT (0 << 30) +#define DWC3_DEPCFG_ACTION_RESTORE (1 << 30) +#define DWC3_DEPCFG_ACTION_MODIFY (2 << 30) + +/* DEPXFERCFG parameter 0 */ +#define DWC3_DEPXFERCFG_NUM_XFER_RES(n) ((n) & 0xffff) + +/* -------------------------------------------------------------------------- */ + +#define to_dwc3_request(r) (container_of(r, struct dwc3_request, request)) + +static inline struct dwc3_request *next_request(struct list_head *list) +{ + if (list_empty(list)) + return NULL; + + return list_first_entry(list, struct dwc3_request, list); +} + +/** + * dwc3_gadget_move_started_request - move @req to the started_list + * @req: the request to be moved + * + * Caller should take care of locking. This function will move @req from its + * current list to the endpoint's started_list. + */ +static inline void dwc3_gadget_move_started_request(struct dwc3_request *req) +{ + struct dwc3_ep *dep = req->dep; + + req->status = DWC3_REQUEST_STATUS_STARTED; + list_move_tail(&req->list, &dep->started_list); +} + +/** + * dwc3_gadget_move_cancelled_request - move @req to the cancelled_list + * @req: the request to be moved + * + * Caller should take care of locking. This function will move @req from its + * current list to the endpoint's cancelled_list. + */ +static inline void dwc3_gadget_move_cancelled_request(struct dwc3_request *req) +{ + struct dwc3_ep *dep = req->dep; + + req->status = DWC3_REQUEST_STATUS_CANCELLED; + list_move_tail(&req->list, &dep->cancelled_list); +} + +void dwc3_gadget_giveback(struct dwc3_ep *dep, struct dwc3_request *req, + int status); + +void dwc3_ep0_interrupt(struct dwc3 *dwc, + const struct dwc3_event_depevt *event); +void dwc3_ep0_out_start(struct dwc3 *dwc); +int __dwc3_gadget_ep0_set_halt(struct usb_ep *ep, int value); +int dwc3_gadget_ep0_set_halt(struct usb_ep *ep, int value); +int dwc3_gadget_ep0_queue(struct usb_ep *ep, struct usb_request *request); +int __dwc3_gadget_ep_set_halt(struct dwc3_ep *dep, int value, int protocol); +void dwc3_gadget_handle_interrupt(struct dwc3 *dwc); + +/** + * dwc3_gadget_ep_get_transfer_index - Gets transfer index from HW + * @dep: dwc3 endpoint + * + * Caller should take care of locking. Returns the transfer resource + * index for a given endpoint. + */ +static inline void dwc3_gadget_ep_get_transfer_index(struct dwc3_ep *dep) +{ + u32 res_id; + + res_id = dwc3_readl(dep->regs, DWC3_DEPCMD); + dep->resource_index = DWC3_DEPCMD_GET_RSC_IDX(res_id); +} + +#endif /* __DRIVERS_USB_DWC3_GADGET_H */ |