2 * SPDX-License-Identifier: BSD-2-Clause
4 * Copyright (c) 2008 Hans Petter Selasky. All rights reserved.
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29 * This file describes internal structures.
32 #ifndef _LIBUSB20_INT_H_
33 #define _LIBUSB20_INT_H_
35 struct libusb20_device;
36 struct libusb20_backend;
37 struct libusb20_transfer;
38 struct libusb20_quirk;
40 union libusb20_session_data {
41 unsigned long session_data;
46 /* USB backend specific */
47 typedef const char *(libusb20_get_backend_name_t)(void);
48 typedef int (libusb20_root_get_dev_quirk_t)(struct libusb20_backend *pbe, uint16_t index, struct libusb20_quirk *pq);
49 typedef int (libusb20_root_get_quirk_name_t)(struct libusb20_backend *pbe, uint16_t index, struct libusb20_quirk *pq);
50 typedef int (libusb20_root_add_dev_quirk_t)(struct libusb20_backend *pbe, struct libusb20_quirk *pq);
51 typedef int (libusb20_root_remove_dev_quirk_t)(struct libusb20_backend *pbe, struct libusb20_quirk *pq);
52 typedef int (libusb20_close_device_t)(struct libusb20_device *pdev);
53 typedef int (libusb20_dev_get_info_t)(struct libusb20_device *pdev, struct usb_device_info *pinfo);
54 typedef int (libusb20_dev_get_iface_desc_t)(struct libusb20_device *pdev, uint8_t iface_index, char *buf, uint8_t len);
55 typedef int (libusb20_init_backend_t)(struct libusb20_backend *pbe);
56 typedef int (libusb20_open_device_t)(struct libusb20_device *pdev, uint16_t transfer_count_max);
57 typedef void (libusb20_exit_backend_t)(struct libusb20_backend *pbe);
58 typedef int (libusb20_root_set_template_t)(struct libusb20_backend *pbe, int temp);
59 typedef int (libusb20_root_get_template_t)(struct libusb20_backend *pbe, int *ptemp);
61 #define LIBUSB20_DEFINE(n,field) \
62 libusb20_##field##_t *field;
64 #define LIBUSB20_DECLARE(n,field) \
65 /* .field = */ n##_##field,
67 #define LIBUSB20_BACKEND(m,n) \
68 /* description of this backend */ \
69 m(n, get_backend_name) \
70 /* optional backend methods */ \
74 m(n, dev_get_iface_desc) \
75 m(n, root_get_dev_quirk) \
76 m(n, root_get_quirk_name) \
77 m(n, root_add_dev_quirk) \
78 m(n, root_remove_dev_quirk) \
79 m(n, root_set_template) \
80 m(n, root_get_template) \
81 /* mandatory device methods */ \
85 struct libusb20_backend_methods {
86 LIBUSB20_BACKEND(LIBUSB20_DEFINE,)
89 /* USB dummy methods */
90 typedef int (libusb20_dummy_int_t)(void);
91 typedef void (libusb20_dummy_void_t)(void);
93 /* USB device specific */
94 typedef int (libusb20_detach_kernel_driver_t)(struct libusb20_device *pdev, uint8_t iface_index);
95 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);
96 typedef int (libusb20_get_config_desc_full_t)(struct libusb20_device *pdev, uint8_t **ppbuf, uint16_t *plen, uint8_t index);
97 typedef int (libusb20_get_config_index_t)(struct libusb20_device *pdev, uint8_t *pindex);
98 typedef int (libusb20_kernel_driver_active_t)(struct libusb20_device *pdev, uint8_t iface_index);
99 typedef int (libusb20_process_t)(struct libusb20_device *pdev);
100 typedef int (libusb20_reset_device_t)(struct libusb20_device *pdev);
101 typedef int (libusb20_set_power_mode_t)(struct libusb20_device *pdev, uint8_t power_mode);
102 typedef int (libusb20_get_power_mode_t)(struct libusb20_device *pdev, uint8_t *power_mode);
103 typedef int (libusb20_get_power_usage_t)(struct libusb20_device *pdev, uint16_t *power_usage);
104 typedef int (libusb20_get_stats_t)(struct libusb20_device *pdev, struct libusb20_device_stats *pstats);
105 typedef int (libusb20_set_alt_index_t)(struct libusb20_device *pdev, uint8_t iface_index, uint8_t alt_index);
106 typedef int (libusb20_set_config_index_t)(struct libusb20_device *pdev, uint8_t index);
107 typedef int (libusb20_check_connected_t)(struct libusb20_device *pdev);
110 /* USB transfer specific */
111 typedef int (libusb20_tr_open_t)(struct libusb20_transfer *xfer, uint32_t MaxBufSize, uint32_t MaxFrameCount, uint8_t ep_no, uint16_t stream_id, uint8_t pre_scale);
112 typedef int (libusb20_tr_close_t)(struct libusb20_transfer *xfer);
113 typedef int (libusb20_tr_clear_stall_sync_t)(struct libusb20_transfer *xfer);
114 typedef void (libusb20_tr_submit_t)(struct libusb20_transfer *xfer);
115 typedef void (libusb20_tr_cancel_async_t)(struct libusb20_transfer *xfer);
117 #define LIBUSB20_DEVICE(m,n) \
118 m(n, detach_kernel_driver) \
119 m(n, do_request_sync) \
120 m(n, get_config_desc_full) \
121 m(n, get_config_index) \
122 m(n, kernel_driver_active) \
125 m(n, check_connected) \
126 m(n, set_power_mode) \
127 m(n, get_power_mode) \
128 m(n, get_power_usage) \
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) \
138 struct libusb20_device_methods {
139 LIBUSB20_DEVICE(LIBUSB20_DEFINE,)
142 struct libusb20_backend {
143 TAILQ_HEAD(, libusb20_device) usb_devs;
144 const struct libusb20_backend_methods *methods;
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 */
153 * Pointer to a list of buffer pointers:
157 * Pointer to frame lengths, which are updated to actual length
158 * after the USB transfer completes:
161 uint32_t maxTotalLength;
162 uint32_t maxFrames; /* total number of frames */
163 uint32_t nFrames; /* total number of frames */
164 uint32_t aFrames; /* actual number of frames */
166 /* isochronous completion time in milliseconds */
167 uint16_t timeComplete;
169 uint16_t maxPacketLen;
170 uint8_t flags; /* see LIBUSB20_TRANSFER_XXX */
171 uint8_t status; /* see LIBUSB20_TRANSFER_XXX */
179 struct libusb20_device {
181 /* device descriptor */
182 struct LIBUSB20_DEVICE_DESC_DECODED ddesc;
184 /* device timestamp */
185 union libusb20_session_data session_data;
187 /* our device entry */
188 TAILQ_ENTRY(libusb20_device) dev_entry;
191 const struct libusb20_device_methods *methods;
193 /* backend methods */
194 const struct libusb20_backend_methods *beMethods;
196 /* list of USB transfers */
197 struct libusb20_transfer *pTransfer;
199 /* private backend data */
202 /* libUSB v0.1 and v1.0 compat data */
205 /* claimed interface */
206 uint8_t claimed_interface;
208 /* auto detach kernel driver */
211 /* device file handle */
214 /* device file handle (control transfers only) */
217 /* debugging level */
220 /* number of USB transfers */
224 uint8_t device_address;
228 uint8_t parent_address;
233 #define LIBUSB20_DEVICE_PORT_PATH_MAX 32
234 uint8_t port_path[LIBUSB20_DEVICE_PORT_PATH_MAX];
237 extern const struct libusb20_backend_methods libusb20_ugen20_backend;
238 extern const struct libusb20_backend_methods libusb20_linux_backend;
240 #endif /* _LIBUSB20_INT_H_ */