drivers/usb/gadget/s3c2410_udc.h

   1 /*
   2  * linux/drivers/usb/gadget/s3c2410_udc.h
   3  * Samsung on-chip full speed USB device controllers
   4  *
   5  * Copyright (C) 2004-2007 Herbert Pötzl - Arnaud Patard
   6  *      Additional cleanups by Ben Dooks <ben-linux@fluff.org>
   7  *
   8  * This program is free software; you can redistribute it and/or modify
   9  * it under the terms of the GNU General Public License as published by
  10  * the Free Software Foundation; either version 2 of the License, or
  11  * (at your option) any later version.
  12  */
  13
  14 #ifndef _S3C2410_UDC_H
  15 #define _S3C2410_UDC_H
  16
  17 struct s3c2410_ep {
  18         struct list_head                queue;
  19         unsigned long                   last_io;        /* jiffies timestamp */
  20         struct usb_gadget               *gadget;
  21         struct s3c2410_udc              *dev;
  22         const struct usb_endpoint_descriptor *desc;
  23         struct usb_ep                   ep;
  24         u8                              num;
  25
  26         unsigned short                  fifo_size;
  27         u8                              bEndpointAddress;
  28         u8                              bmAttributes;
  29
  30         unsigned                        halted : 1;
  31         unsigned                        already_seen : 1;
  32         unsigned                        setup_stage : 1;
  33 };
  34
  35
  36 /* Warning : ep0 has a fifo of 16 bytes */
  37 /* Don't try to set 32 or 64            */
  38 /* also testusb 14 fails  wit 16 but is */
  39 /* fine with 8                          */
  40 #define EP0_FIFO_SIZE            8
  41 #define EP_FIFO_SIZE            64
  42 #define DEFAULT_POWER_STATE     0x00
  43
  44 #define S3C2440_EP_FIFO_SIZE    128
  45
  46 static const char ep0name [] = "ep0";
  47
  48 static const char *const ep_name[] = {
  49         ep0name,                                /* everyone has ep0 */
  50         /* s3c2410 four bidirectional bulk endpoints */
  51         "ep1-bulk", "ep2-bulk", "ep3-bulk", "ep4-bulk",
  52 };
  53
  54 #define S3C2410_ENDPOINTS       ARRAY_SIZE(ep_name)
  55
  56 struct s3c2410_request {
  57         struct list_head                queue;          /* ep's requests */
  58         struct usb_request              req;
  59 };
  60
  61 enum ep0_state {
  62         EP0_IDLE,
  63         EP0_IN_DATA_PHASE,
  64         EP0_OUT_DATA_PHASE,
  65         EP0_END_XFER,
  66         EP0_STALL,
  67 };
  68
  69 static const char *ep0states[]= {
  70         "EP0_IDLE",
  71         "EP0_IN_DATA_PHASE",
  72         "EP0_OUT_DATA_PHASE",
  73         "EP0_END_XFER",
  74         "EP0_STALL",
  75 };
  76
  77 struct s3c2410_udc {
  78         spinlock_t                      lock;
  79
  80         struct s3c2410_ep               ep[S3C2410_ENDPOINTS];
  81         int                             address;
  82         struct usb_gadget               gadget;
  83         struct usb_gadget_driver        *driver;
  84         struct s3c2410_request          fifo_req;
  85         u8                              fifo_buf[EP_FIFO_SIZE];
  86         u16                             devstatus;
  87
  88         u32                             port_status;
  89         int                             ep0state;
  90
  91         unsigned                        got_irq : 1;
  92
  93         unsigned                        req_std : 1;
  94         unsigned                        req_config : 1;
  95         unsigned                        req_pending : 1;
  96         u8                              vbus;
  97         struct dentry                   *regs_info;
  98 };
  99
 100 #endif