drivers/staging/westbridge/astoria/gadget/cyasgadget.h

   1 /* cyangadget.h - Linux USB Gadget driver file for the Cypress West Bridge
   2 ## ===========================
   3 ## Copyright (C) 2010  Cypress Semiconductor
   4 ##
   5 ## This program is free software; you can redistribute it and/or
   6 ## modify it under the terms of the GNU General Public License
   7 ## as published by the Free Software Foundation; either version 2
   8 ## of the License, or (at your option) any later version.
   9 ##
  10 ## This program is distributed in the hope that it will be useful,
  11 ## but WITHOUT ANY WARRANTY; without even the implied warranty of
  12 ## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13 ## GNU General Public License for more details.
  14 ##
  15 ## You should have received a copy of the GNU General Public License
  16 ## along with this program; if not, write to the Free Software
  17 ## Foundation, Inc., 51 Franklin Street, Fifth Floor
  18 ## Boston, MA  02110-1301, USA.
  19 ## ===========================
  20 */
  21
  22 /*
  23  * Cypress West Bridge high/full speed USB device controller code
  24  * Based on the Netchip 2280 device controller by David Brownell
  25  * in the linux 2.6.10 kernel
  26  *
  27  * linux/drivers/usb/gadget/net2280.h
  28  */
  29
  30 /*
  31  * Copyright (C) 2002 NetChip Technology, Inc. (http://www.netchip.com)
  32  * Copyright (C) 2003 David Brownell
  33  *
  34  * This program is free software; you can redistribute it and/or modify
  35  * it under the terms of the GNU General Public License as published by
  36  * the Free Software Foundation; either version 2 of the License, or
  37  * (at your option) any later version.
  38  *
  39  * This program is distributed in the hope that it will be useful,
  40  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  41  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  42  * GNU General Public License for more details.
  43  *
  44  * You should have received a copy of the GNU General Public License
  45  * along with this program; if not, write to the Free Software
  46  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  47  */
  48
  49 #ifndef _INCLUDED_CYANGADGET_H_
  50 #define _INCLUDED_CYANGADGET_H_
  51
  52 #include <linux/device.h>
  53 #include <linux/moduleparam.h>
  54 #include <linux/usb/ch9.h>
  55 #include <linux/usb/gadget.h>
  56 #include <linux/sched.h>
  57 #include <linux/module.h>
  58 #include <linux/init.h>
  59
  60 #include "../include/linux/westbridge/cyastoria.h"
  61 #include "../include/linux/westbridge/cyashal.h"
  62 #include "../include/linux/westbridge/cyasdevice.h"
  63 #include "cyasgadget_ioctl.h"
  64
  65 /*char driver defines, revisit*/
  66 #include <linux/fs.h>           /* everything... */
  67 #include <linux/errno.h>        /* error codes */
  68 #include <linux/types.h>        /* size_t */
  69 #include <linux/proc_fs.h>
  70 #include <linux/fcntl.h>        /* O_ACCMODE */
  71 #include <linux/seq_file.h>
  72 #include <linux/cdev.h>
  73 #include <linux/scatterlist.h>
  74 #include <linux/pagemap.h>
  75 #include <linux/vmalloc.h>        /* vmalloc(), vfree */
  76 #include <linux/msdos_fs.h> /*fat_alloc_cluster*/
  77 #include <linux/buffer_head.h>
  78 #include <asm/system.h>         /* cli(), *_flags */
  79 #include <linux/uaccess.h>      /* copy_*_user */
  80
  81 extern int mpage_cleardirty(struct address_space *mapping, int num_pages);
  82 extern int fat_get_block(struct inode *, sector_t , struct buffer_head *, int);
  83 extern cy_as_device_handle *cyasdevice_getdevhandle(void);
  84
  85 /* Driver data structures and utilities */
  86 typedef struct cyasgadget_ep {
  87         struct usb_ep                           usb_ep_inst;
  88         struct cyasgadget                       *dev;
  89
  90         /* analogous to a host-side qh */
  91         struct list_head                        queue;
  92         const struct usb_endpoint_descriptor    *desc;
  93         unsigned                        num:8,
  94                                                 fifo_size:12,
  95                                                 in_fifo_validate:1,
  96                                                 out_overflow:1,
  97                                                 stopped:1,
  98                                                 is_in:1,
  99                                                 is_iso:1;
 100         cy_as_usb_end_point_config cyepconfig;
 101 } cyasgadget_ep;
 102
 103 typedef struct cyasgadget_req {
 104         struct usb_request              req;
 105         struct list_head                queue;
 106         int      ep_num;
 107         unsigned                        mapped:1,
 108                                                 valid:1,
 109                                                 complete:1,
 110                                                 ep_stopped:1;
 111 } cyasgadget_req;
 112
 113 typedef struct cyasgadget {
 114         /* each device provides one gadget, several endpoints */
 115         struct usb_gadget                       gadget;
 116         spinlock_t                                      lock;
 117         struct cyasgadget_ep            an_gadget_ep[16];
 118         struct usb_gadget_driver         *driver;
 119         /* Handle to the West Bridge device */
 120         cy_as_device_handle                     dev_handle;
 121         unsigned                        enabled:1,
 122                                                 protocol_stall:1,
 123                                                 softconnect:1,
 124                                                 outsetupreq:1;
 125         struct completion       thread_complete;
 126         wait_queue_head_t       thread_wq;
 127         struct semaphore        thread_sem;
 128         struct list_head        thread_queue;
 129
 130         cy_bool tmtp_send_complete;
 131         cy_bool tmtp_get_complete;
 132         cy_bool tmtp_need_new_blk_tbl;
 133         /* Data member used to store the SendObjectComplete event data */
 134         cy_as_mtp_send_object_complete_data tmtp_send_complete_data;
 135         /* Data member used to store the GetObjectComplete event data */
 136         cy_as_mtp_get_object_complete_data tmtp_get_complete_data;
 137
 138 } cyasgadget;
 139
 140 static inline void set_halt(cyasgadget_ep *ep)
 141 {
 142         return;
 143 }
 144
 145 static inline void clear_halt(cyasgadget_ep *ep)
 146 {
 147         return;
 148 }
 149
 150 #define xprintk(dev, level, fmt, args...) \
 151         printk(level "%s %s: " fmt, driver_name, \
 152                         pci_name(dev->pdev), ## args)
 153
 154 #ifdef DEBUG
 155 #undef DEBUG
 156 #define DEBUG(dev, fmt, args...) \
 157         xprintk(dev, KERN_DEBUG, fmt, ## args)
 158 #else
 159 #define DEBUG(dev, fmt, args...) \
 160         do { } while (0)
 161 #endif /* DEBUG */
 162
 163 #ifdef VERBOSE
 164 #define VDEBUG DEBUG
 165 #else
 166 #define VDEBUG(dev, fmt, args...) \
 167         do { } while (0)
 168 #endif  /* VERBOSE */
 169
 170 #define ERROR(dev, fmt, args...) \
 171         xprintk(dev, KERN_ERR, fmt, ## args)
 172 #define GADG_WARN(dev, fmt, args...) \
 173         xprintk(dev, KERN_WARNING, fmt, ## args)
 174 #define INFO(dev, fmt, args...) \
 175         xprintk(dev, KERN_INFO, fmt, ## args)
 176
 177 /*-------------------------------------------------------------------------*/
 178
 179 static inline void start_out_naking(struct cyasgadget_ep *ep)
 180 {
 181         return;
 182 }
 183
 184 static inline void stop_out_naking(struct cyasgadget_ep *ep)
 185 {
 186         return;
 187 }
 188
 189 #endif  /* _INCLUDED_CYANGADGET_H_ */