lib/libusb/libusb20_int.h

   1 /* $FreeBSD$ */
   2 /*-
   3  * Copyright (c) 2008 Hans Petter Selasky. All rights reserved.
   4  *
   5  * Redistribution and use in source and binary forms, with or without
   6  * modification, are permitted provided that the following conditions
   7  * are met:
   8  * 1. Redistributions of source code must retain the above copyright
   9  *    notice, this list of conditions and the following disclaimer.
  10  * 2. Redistributions in binary form must reproduce the above copyright
  11  *    notice, this list of conditions and the following disclaimer in the
  12  *    documentation and/or other materials provided with the distribution.
  13  *
  14  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
  15  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  16  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  17  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
  18  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  19  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  20  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  21  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  22  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  23  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  24  * SUCH DAMAGE.
  25  */
  26
  27 /*
  28  * This file describes internal structures.
  29  */
  30
  31 #ifndef _LIBUSB20_INT_H_
  32 #define _LIBUSB20_INT_H_
  33
  34 #ifdef COMPAT_32BIT
  35 #define libusb20_pass_ptr(ptr)  ((uint64_t)(uintptr_t)(ptr))
  36 #else
  37 #define libusb20_pass_ptr(ptr)  (ptr)
  38 #endif
  39
  40 struct libusb20_device;
  41 struct libusb20_backend;
  42 struct libusb20_transfer;
  43 struct libusb20_quirk;
  44
  45 union libusb20_session_data {
  46         unsigned long session_data;
  47         struct timespec tv;
  48         uint32_t plugtime;
  49 };
  50
  51 /* USB backend specific */
  52 typedef const char *(libusb20_get_backend_name_t)(void);
  53 typedef int (libusb20_root_get_dev_quirk_t)(struct libusb20_backend *pbe, uint16_t index, struct libusb20_quirk *pq);
  54 typedef int (libusb20_root_get_quirk_name_t)(struct libusb20_backend *pbe, uint16_t index, struct libusb20_quirk *pq);
  55 typedef int (libusb20_root_add_dev_quirk_t)(struct libusb20_backend *pbe, struct libusb20_quirk *pq);
  56 typedef int (libusb20_root_remove_dev_quirk_t)(struct libusb20_backend *pbe, struct libusb20_quirk *pq);
  57 typedef int (libusb20_close_device_t)(struct libusb20_device *pdev);
  58 typedef int (libusb20_dev_get_info_t)(struct libusb20_device *pdev, struct usb_device_info *pinfo);
  59 typedef int (libusb20_dev_get_iface_desc_t)(struct libusb20_device *pdev, uint8_t iface_index, char *buf, uint8_t len);
  60 typedef int (libusb20_init_backend_t)(struct libusb20_backend *pbe);
  61 typedef int (libusb20_open_device_t)(struct libusb20_device *pdev, uint16_t transfer_count_max);
  62 typedef void (libusb20_exit_backend_t)(struct libusb20_backend *pbe);
  63 typedef int (libusb20_root_set_template_t)(struct libusb20_backend *pbe, int temp);
  64 typedef int (libusb20_root_get_template_t)(struct libusb20_backend *pbe, int *ptemp);
  65
  66 #define LIBUSB20_DEFINE(n,field) \
  67   libusb20_##field##_t *field;
  68
  69 #define LIBUSB20_DECLARE(n,field) \
  70   /* .field = */ n##_##field,
  71
  72 #define LIBUSB20_BACKEND(m,n) \
  73   /* description of this backend */ \
  74   m(n, get_backend_name) \
  75   /* optional backend methods */ \
  76   m(n, init_backend) \
  77   m(n, exit_backend) \
  78   m(n, dev_get_info) \
  79   m(n, dev_get_iface_desc) \
  80   m(n, root_get_dev_quirk) \
  81   m(n, root_get_quirk_name) \
  82   m(n, root_add_dev_quirk) \
  83   m(n, root_remove_dev_quirk) \
  84   m(n, root_set_template) \
  85   m(n, root_get_template) \
  86   /* mandatory device methods */ \
  87   m(n, open_device) \
  88   m(n, close_device) \
  89
  90 struct libusb20_backend_methods {
  91         LIBUSB20_BACKEND(LIBUSB20_DEFINE,)
  92 };
  93
  94 /* USB dummy methods */
  95 typedef int (libusb20_dummy_int_t)(void);
  96 typedef void (libusb20_dummy_void_t)(void);
  97
  98 /* USB device specific */
  99 typedef int (libusb20_detach_kernel_driver_t)(struct libusb20_device *pdev, uint8_t iface_index);
 100 typedef int (libusb20_do_request_sync_t)(struct libusb20_device *pdev, struct LIBUSB20_CONTROL_SETUP_DECODED *setup, void *data, uint16_t *pactlen, uint32_t timeout, uint8_t flags);
 101 typedef int (libusb20_get_config_desc_full_t)(struct libusb20_device *pdev, uint8_t **ppbuf, uint16_t *plen, uint8_t index);
 102 typedef int (libusb20_get_config_index_t)(struct libusb20_device *pdev, uint8_t *pindex);
 103 typedef int (libusb20_kernel_driver_active_t)(struct libusb20_device *pdev, uint8_t iface_index);
 104 typedef int (libusb20_process_t)(struct libusb20_device *pdev);
 105 typedef int (libusb20_reset_device_t)(struct libusb20_device *pdev);
 106 typedef int (libusb20_set_power_mode_t)(struct libusb20_device *pdev, uint8_t power_mode);
 107 typedef int (libusb20_get_power_mode_t)(struct libusb20_device *pdev, uint8_t *power_mode);
 108 typedef int (libusb20_set_alt_index_t)(struct libusb20_device *pdev, uint8_t iface_index, uint8_t alt_index);
 109 typedef int (libusb20_set_config_index_t)(struct libusb20_device *pdev, uint8_t index);
 110 typedef int (libusb20_check_connected_t)(struct libusb20_device *pdev);
 111
 112 /* USB transfer specific */
 113 typedef int (libusb20_tr_open_t)(struct libusb20_transfer *xfer, uint32_t MaxBufSize, uint32_t MaxFrameCount, uint8_t ep_no, uint8_t pre_scale);
 114 typedef int (libusb20_tr_close_t)(struct libusb20_transfer *xfer);
 115 typedef int (libusb20_tr_clear_stall_sync_t)(struct libusb20_transfer *xfer);
 116 typedef void (libusb20_tr_submit_t)(struct libusb20_transfer *xfer);
 117 typedef void (libusb20_tr_cancel_async_t)(struct libusb20_transfer *xfer);
 118
 119 #define LIBUSB20_DEVICE(m,n) \
 120   m(n, detach_kernel_driver) \
 121   m(n, do_request_sync) \
 122   m(n, get_config_desc_full) \
 123   m(n, get_config_index) \
 124   m(n, kernel_driver_active) \
 125   m(n, process) \
 126   m(n, reset_device) \
 127   m(n, check_connected) \
 128   m(n, set_power_mode) \
 129   m(n, get_power_mode) \
 130   m(n, set_alt_index) \
 131   m(n, set_config_index) \
 132   m(n, tr_cancel_async) \
 133   m(n, tr_clear_stall_sync) \
 134   m(n, tr_close) \
 135   m(n, tr_open) \
 136   m(n, tr_submit) \
 137
 138 struct libusb20_device_methods {
 139         LIBUSB20_DEVICE(LIBUSB20_DEFINE,)
 140 };
 141
 142 struct libusb20_backend {
 143         TAILQ_HEAD(, libusb20_device) usb_devs;
 144         const struct libusb20_backend_methods *methods;
 145 };
 146
 147 struct libusb20_transfer {
 148         struct libusb20_device *pdev;   /* the USB device we belong to */
 149         libusb20_tr_callback_t *callback;
 150         void   *priv_sc0;               /* private client data */
 151         void   *priv_sc1;               /* private client data */
 152         /*
 153          * Pointer to a list of buffer pointers:
 154          */
 155 #ifdef COMPAT_32BIT
 156         uint64_t *ppBuffer;
 157 #else
 158         void  **ppBuffer;
 159 #endif
 160         /*
 161          * Pointer to frame lengths, which are updated to actual length
 162          * after the USB transfer completes:
 163          */
 164         uint32_t *pLength;
 165         uint32_t maxTotalLength;
 166         uint32_t maxFrames;             /* total number of frames */
 167         uint32_t nFrames;               /* total number of frames */
 168         uint32_t aFrames;               /* actual number of frames */
 169         uint32_t timeout;
 170         /* isochronous completion time in milliseconds */
 171         uint16_t timeComplete;
 172         uint16_t trIndex;
 173         uint16_t maxPacketLen;
 174         uint8_t flags;                  /* see LIBUSB20_TRANSFER_XXX */
 175         uint8_t status;                 /* see LIBUSB20_TRANSFER_XXX */
 176         uint8_t is_opened;
 177         uint8_t is_pending;
 178         uint8_t is_cancel;
 179         uint8_t is_draining;
 180         uint8_t is_restart;
 181 };
 182
 183 struct libusb20_device {
 184
 185         /* device descriptor */
 186         struct LIBUSB20_DEVICE_DESC_DECODED ddesc;
 187
 188         /* device timestamp */
 189         union libusb20_session_data session_data;
 190
 191         /* our device entry */
 192         TAILQ_ENTRY(libusb20_device) dev_entry;
 193
 194         /* device methods */
 195         const struct libusb20_device_methods *methods;
 196
 197         /* backend methods */
 198         const struct libusb20_backend_methods *beMethods;
 199
 200         /* list of USB transfers */
 201         struct libusb20_transfer *pTransfer;
 202
 203         /* private backend data */
 204         void   *privBeData;
 205
 206         /* libUSB v0.1 and v1.0 compat data */
 207         void   *privLuData;
 208
 209         /* claimed interface */
 210         uint8_t claimed_interface;
 211
 212         /* device file handle */
 213         int     file;
 214
 215         /* device file handle (control transfers only) */
 216         int     file_ctrl;
 217
 218         /* debugging level */
 219         int     debug;
 220
 221         /* number of USB transfers */
 222         uint16_t nTransfer;
 223
 224         uint8_t bus_number;
 225         uint8_t device_address;
 226         uint8_t usb_mode;
 227         uint8_t usb_speed;
 228         uint8_t is_opened;
 229         uint8_t parent_address;
 230         uint8_t parent_port;
 231
 232         char    usb_desc[96];
 233 };
 234
 235 extern const struct libusb20_backend_methods libusb20_ugen20_backend;
 236 extern const struct libusb20_backend_methods libusb20_linux_backend;
 237
 238 #endif                                  /* _LIBUSB20_INT_H_ */