1 /* $FreeBSD: src/lib/libusb/libusb20_int.h,v 1.8 2011/06/24 11:14:09 hselasky Exp $ */ 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_ */ 239