// SPDX-License-Identifier: GPL-2.0+ /* * linux/drivers/usb/gadget/s3c2410_udc.h * Samsung on-chip full speed USB device controllers * * Copyright (C) 2004-2007 Herbert Pötzl - Arnaud Patard * Additional cleanups by Ben Dooks <ben-linux@fluff.org> */ #ifndef _S3C2410_UDC_H #define _S3C2410_UDC_H struct s3c2410_ep { struct list_head queue; unsigned long last_io; /* jiffies timestamp */ struct usb_gadget *gadget; struct s3c2410_udc *dev; struct usb_ep ep; u8 num; unsigned short fifo_size; u8 bEndpointAddress; u8 bmAttributes; unsigned halted : 1; unsigned already_seen : 1; unsigned setup_stage : 1; }; /* Warning : ep0 has a fifo of 16 bytes */ /* Don't try to set 32 or 64 */ /* also testusb 14 fails wit 16 but is */ /* fine with 8 */ #define EP0_FIFO_SIZE 8 #define EP_FIFO_SIZE 64 #define DEFAULT_POWER_STATE 0x00 #define S3C2440_EP_FIFO_SIZE 128 static const char ep0name [] = "ep0"; static const char *const ep_name[] = { ep0name, /* everyone has ep0 */ /* s3c2410 four bidirectional bulk endpoints */ "ep1-bulk", "ep2-bulk", "ep3-bulk", "ep4-bulk", }; #define S3C2410_ENDPOINTS ARRAY_SIZE(ep_name) struct s3c2410_request { struct list_head queue; /* ep's requests */ struct usb_request req; }; enum ep0_state { EP0_IDLE, EP0_IN_DATA_PHASE, EP0_OUT_DATA_PHASE, EP0_END_XFER, EP0_STALL, }; static const char *ep0states[]= { "EP0_IDLE", "EP0_IN_DATA_PHASE", "EP0_OUT_DATA_PHASE", "EP0_END_XFER", "EP0_STALL", }; struct s3c2410_udc { spinlock_t lock; struct s3c2410_ep ep[S3C2410_ENDPOINTS]; int address; struct usb_gadget gadget; struct usb_gadget_driver *driver; struct s3c2410_request fifo_req; u8 fifo_buf[EP_FIFO_SIZE]; u16 devstatus; u32 port_status; int ep0state; unsigned got_irq : 1; unsigned req_std : 1; unsigned req_config : 1; unsigned req_pending : 1; u8 vbus; struct dentry *regs_info; }; #define to_s3c2410(g) (container_of((g), struct s3c2410_udc, gadget)) #endif