172246da4SFelipe Balbi /** 272246da4SFelipe Balbi * gadget.h - DesignWare USB3 DRD Gadget Header 372246da4SFelipe Balbi * 472246da4SFelipe Balbi * Copyright (C) 2010-2011 Texas Instruments Incorporated - http://www.ti.com 572246da4SFelipe Balbi * 672246da4SFelipe Balbi * Authors: Felipe Balbi <balbi@ti.com>, 772246da4SFelipe Balbi * Sebastian Andrzej Siewior <bigeasy@linutronix.de> 872246da4SFelipe Balbi * 95945f789SFelipe Balbi * This program is free software: you can redistribute it and/or modify 105945f789SFelipe Balbi * it under the terms of the GNU General Public License version 2 of 115945f789SFelipe Balbi * the License as published by the Free Software Foundation. 1272246da4SFelipe Balbi * 135945f789SFelipe Balbi * This program is distributed in the hope that it will be useful, 145945f789SFelipe Balbi * but WITHOUT ANY WARRANTY; without even the implied warranty of 155945f789SFelipe Balbi * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 165945f789SFelipe Balbi * GNU General Public License for more details. 1772246da4SFelipe Balbi */ 1872246da4SFelipe Balbi 1972246da4SFelipe Balbi #ifndef __DRIVERS_USB_DWC3_GADGET_H 2072246da4SFelipe Balbi #define __DRIVERS_USB_DWC3_GADGET_H 2172246da4SFelipe Balbi 2272246da4SFelipe Balbi #include <linux/list.h> 2372246da4SFelipe Balbi #include <linux/usb/gadget.h> 2472246da4SFelipe Balbi #include "io.h" 2572246da4SFelipe Balbi 2672246da4SFelipe Balbi struct dwc3; 2772246da4SFelipe Balbi #define to_dwc3_ep(ep) (container_of(ep, struct dwc3_ep, endpoint)) 2872246da4SFelipe Balbi #define gadget_to_dwc(g) (container_of(g, struct dwc3, gadget)) 2972246da4SFelipe Balbi 30dc1c70a7SFelipe Balbi /* DEPCFG parameter 1 */ 31dc1c70a7SFelipe Balbi #define DWC3_DEPCFG_INT_NUM(n) ((n) << 0) 32dc1c70a7SFelipe Balbi #define DWC3_DEPCFG_XFER_COMPLETE_EN (1 << 8) 33dc1c70a7SFelipe Balbi #define DWC3_DEPCFG_XFER_IN_PROGRESS_EN (1 << 9) 34dc1c70a7SFelipe Balbi #define DWC3_DEPCFG_XFER_NOT_READY_EN (1 << 10) 35dc1c70a7SFelipe Balbi #define DWC3_DEPCFG_FIFO_ERROR_EN (1 << 11) 36dc1c70a7SFelipe Balbi #define DWC3_DEPCFG_STREAM_EVENT_EN (1 << 13) 37dc1c70a7SFelipe Balbi #define DWC3_DEPCFG_BINTERVAL_M1(n) ((n) << 16) 38dc1c70a7SFelipe Balbi #define DWC3_DEPCFG_STREAM_CAPABLE (1 << 24) 39dc1c70a7SFelipe Balbi #define DWC3_DEPCFG_EP_NUMBER(n) ((n) << 25) 40dc1c70a7SFelipe Balbi #define DWC3_DEPCFG_BULK_BASED (1 << 30) 41dc1c70a7SFelipe Balbi #define DWC3_DEPCFG_FIFO_BASED (1 << 31) 4272246da4SFelipe Balbi 43dc1c70a7SFelipe Balbi /* DEPCFG parameter 0 */ 44dc1c70a7SFelipe Balbi #define DWC3_DEPCFG_EP_TYPE(n) ((n) << 1) 45dc1c70a7SFelipe Balbi #define DWC3_DEPCFG_MAX_PACKET_SIZE(n) ((n) << 3) 46dc1c70a7SFelipe Balbi #define DWC3_DEPCFG_FIFO_NUMBER(n) ((n) << 17) 47dc1c70a7SFelipe Balbi #define DWC3_DEPCFG_BURST_SIZE(n) ((n) << 22) 48dc1c70a7SFelipe Balbi #define DWC3_DEPCFG_DATA_SEQ_NUM(n) ((n) << 26) 492c61a8efSPaul Zimmerman /* This applies for core versions earlier than 1.94a */ 50dc1c70a7SFelipe Balbi #define DWC3_DEPCFG_IGN_SEQ_NUM (1 << 31) 512c61a8efSPaul Zimmerman /* These apply for core versions 1.94a and later */ 522c61a8efSPaul Zimmerman #define DWC3_DEPCFG_ACTION_INIT (0 << 30) 532c61a8efSPaul Zimmerman #define DWC3_DEPCFG_ACTION_RESTORE (1 << 30) 542c61a8efSPaul Zimmerman #define DWC3_DEPCFG_ACTION_MODIFY (2 << 30) 5572246da4SFelipe Balbi 56dc1c70a7SFelipe Balbi /* DEPXFERCFG parameter 0 */ 57dc1c70a7SFelipe Balbi #define DWC3_DEPXFERCFG_NUM_XFER_RES(n) ((n) & 0xffff) 5872246da4SFelipe Balbi 5972246da4SFelipe Balbi /* -------------------------------------------------------------------------- */ 6072246da4SFelipe Balbi 6172246da4SFelipe Balbi #define to_dwc3_request(r) (container_of(r, struct dwc3_request, request)) 6272246da4SFelipe Balbi 6372246da4SFelipe Balbi static inline struct dwc3_request *next_request(struct list_head *list) 6472246da4SFelipe Balbi { 6572246da4SFelipe Balbi if (list_empty(list)) 6672246da4SFelipe Balbi return NULL; 6772246da4SFelipe Balbi 6872246da4SFelipe Balbi return list_first_entry(list, struct dwc3_request, list); 6972246da4SFelipe Balbi } 7072246da4SFelipe Balbi 7172246da4SFelipe Balbi static inline void dwc3_gadget_move_request_queued(struct dwc3_request *req) 7272246da4SFelipe Balbi { 7372246da4SFelipe Balbi struct dwc3_ep *dep = req->dep; 7472246da4SFelipe Balbi 7572246da4SFelipe Balbi req->queued = true; 7672246da4SFelipe Balbi list_move_tail(&req->list, &dep->req_queued); 7772246da4SFelipe Balbi } 7872246da4SFelipe Balbi 7972246da4SFelipe Balbi void dwc3_gadget_giveback(struct dwc3_ep *dep, struct dwc3_request *req, 8072246da4SFelipe Balbi int status); 8172246da4SFelipe Balbi 8225b8ff68SFelipe Balbi void dwc3_ep0_interrupt(struct dwc3 *dwc, 8325b8ff68SFelipe Balbi const struct dwc3_event_depevt *event); 8472246da4SFelipe Balbi void dwc3_ep0_out_start(struct dwc3 *dwc); 8533fb691bSFelipe Balbi int __dwc3_gadget_ep0_set_halt(struct usb_ep *ep, int value); 8608f0d966SPratyush Anand int dwc3_gadget_ep0_set_halt(struct usb_ep *ep, int value); 8772246da4SFelipe Balbi int dwc3_gadget_ep0_queue(struct usb_ep *ep, struct usb_request *request, 8872246da4SFelipe Balbi gfp_t gfp_flags); 897a608559SFelipe Balbi int __dwc3_gadget_ep_set_halt(struct dwc3_ep *dep, int value, int protocol); 9072246da4SFelipe Balbi 9172246da4SFelipe Balbi /** 9272246da4SFelipe Balbi * dwc3_gadget_ep_get_transfer_index - Gets transfer index from HW 9372246da4SFelipe Balbi * @dwc: DesignWare USB3 Pointer 9472246da4SFelipe Balbi * @number: DWC endpoint number 9572246da4SFelipe Balbi * 9672246da4SFelipe Balbi * Caller should take care of locking 9772246da4SFelipe Balbi */ 9872246da4SFelipe Balbi static inline u32 dwc3_gadget_ep_get_transfer_index(struct dwc3 *dwc, u8 number) 9972246da4SFelipe Balbi { 10072246da4SFelipe Balbi u32 res_id; 10172246da4SFelipe Balbi 10272246da4SFelipe Balbi res_id = dwc3_readl(dwc->regs, DWC3_DEPCMD(number)); 10372246da4SFelipe Balbi 10472246da4SFelipe Balbi return DWC3_DEPCMD_GET_RSC_IDX(res_id); 10572246da4SFelipe Balbi } 10672246da4SFelipe Balbi 10772246da4SFelipe Balbi #endif /* __DRIVERS_USB_DWC3_GADGET_H */ 108