LXR linux/drivers/usb/gadget/s3c2410

   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
  27struct 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
  56static const char ep0name [] = "ep0";
  57
  58static 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
  66struct s3c2410_request {
  67        struct list_head                queue;          /* ep's requests */
  68        struct usb_request              req;
  69};
  70
  71enum ep0_state {
  72        EP0_IDLE,
  73        EP0_IN_DATA_PHASE,
  74        EP0_OUT_DATA_PHASE,
  75        EP0_END_XFER,
  76        EP0_STALL,
  77};
  78
  79static 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
  87struct 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
 111