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