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  * This program is distributed in the hope that it will be useful,
  14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16  * GNU General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU General Public License
  19  * along with this program; if not, write to the Free Software
  20  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  21  *
  22  */
  23
  24 #ifndef _S3C2410_UDC_H
  25 #define _S3C2410_UDC_H
  26
  27 struct s3c2410_ep {
  28         struct list_head                queue;
  29         unsigned long                   last_io;        /* jiffies timestamp */
  30         struct usb_gadget               *gadget;
  31         struct s3c2410_udc              *dev;
  32         const struct usb_endpoint_descriptor *desc;
  33         struct usb_ep                   ep;
  34         u8                              num;
  35
  36         unsigned short                  fifo_size;
  37         u8                              bEndpointAddress;
  38         u8                              bmAttributes;
  39
  40         unsigned                        halted : 1;
  41         unsigned                        already_seen : 1;
  42         unsigned                        setup_stage : 1;
  43 };
  44
  45
  46 /* Warning : ep0 has a fifo of 16 bytes */
  47 /* Don't try to set 32 or 64            */
  48 /* also testusb 14 fails  wit 16 but is */
  49 /* fine with 8                          */
  50 #define EP0_FIFO_SIZE            8
  51 #define EP_FIFO_SIZE            64
  52 #define DEFAULT_POWER_STATE     0x00
  53
  54 #define S3C2440_EP_FIFO_SIZE    128
  55
  56 static const char ep0name [] = "ep0";
  57
  58 static const char *const ep_name[] = {
  59         ep0name,                                /* everyone has ep0 */
  60         /* s3c2410 four bidirectional bulk endpoints */
  61         "ep1-bulk", "ep2-bulk", "ep3-bulk", "ep4-bulk",
  62 };
  63
  64 #define S3C2410_ENDPOINTS       ARRAY_SIZE(ep_name)
  65
  66 struct s3c2410_request {
  67         struct list_head                queue;          /* ep's requests */
  68         struct usb_request              req;
  69 };
  70
  71 enum ep0_state {
  72         EP0_IDLE,
  73         EP0_IN_DATA_PHASE,
  74         EP0_OUT_DATA_PHASE,
  75         EP0_END_XFER,
  76         EP0_STALL,
  77 };
  78
  79 static const char *ep0states[]= {
  80         "EP0_IDLE",
  81         "EP0_IN_DATA_PHASE",
  82         "EP0_OUT_DATA_PHASE",
  83         "EP0_END_XFER",
  84         "EP0_STALL",
  85 };
  86
  87 struct s3c2410_udc {
  88         spinlock_t                      lock;
  89
  90         struct s3c2410_ep               ep[S3C2410_ENDPOINTS];
  91         int                             address;
  92         struct usb_gadget               gadget;
  93         struct usb_gadget_driver        *driver;
  94         struct s3c2410_request          fifo_req;
  95         u8                              fifo_buf[EP_FIFO_SIZE];
  96         u16                             devstatus;
  97
  98         u32                             port_status;
  99         int                             ep0state;
 100
 101         unsigned                        got_irq : 1;
 102
 103         unsigned                        req_std : 1;
 104         unsigned                        req_config : 1;
 105         unsigned                        req_pending : 1;
 106         u8                              vbus;
 107         struct dentry                   *regs_info;
 108 };
 109
 110 #endif