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#ifndef _LIBUSB20_COMPAT_01_H_
28#define	_LIBUSB20_COMPAT_01_H_
29
30#ifndef LIBUSB_GLOBAL_INCLUDE_FILE
31#include <stdint.h>
32#include <sys/param.h>
33#include <sys/endian.h>
34#endif
35
36/* USB interface class codes */
37
38#define	USB_CLASS_PER_INTERFACE         0
39#define	USB_CLASS_AUDIO                 1
40#define	USB_CLASS_COMM                  2
41#define	USB_CLASS_HID                   3
42#define	USB_CLASS_PRINTER               7
43#define	USB_CLASS_PTP                   6
44#define	USB_CLASS_MASS_STORAGE          8
45#define	USB_CLASS_HUB                   9
46#define	USB_CLASS_DATA                  10
47#define	USB_CLASS_VENDOR_SPEC           0xff
48
49/* USB descriptor types */
50
51#define	USB_DT_DEVICE                   0x01
52#define	USB_DT_CONFIG                   0x02
53#define	USB_DT_STRING                   0x03
54#define	USB_DT_INTERFACE                0x04
55#define	USB_DT_ENDPOINT                 0x05
56
57#define	USB_DT_HID                      0x21
58#define	USB_DT_REPORT                   0x22
59#define	USB_DT_PHYSICAL                 0x23
60#define	USB_DT_HUB                      0x29
61
62/* USB descriptor type sizes */
63
64#define	USB_DT_DEVICE_SIZE              18
65#define	USB_DT_CONFIG_SIZE              9
66#define	USB_DT_INTERFACE_SIZE           9
67#define	USB_DT_ENDPOINT_SIZE            7
68#define	USB_DT_ENDPOINT_AUDIO_SIZE      9
69#define	USB_DT_HUB_NONVAR_SIZE          7
70
71/* USB descriptor header */
72struct usb_descriptor_header {
73	uint8_t	bLength;
74	uint8_t	bDescriptorType;
75};
76
77/* USB string descriptor */
78struct usb_string_descriptor {
79	uint8_t	bLength;
80	uint8_t	bDescriptorType;
81	uint16_t wData[1];
82};
83
84/* USB HID descriptor */
85struct usb_hid_descriptor {
86	uint8_t	bLength;
87	uint8_t	bDescriptorType;
88	uint16_t bcdHID;
89	uint8_t	bCountryCode;
90	uint8_t	bNumDescriptors;
91	/* uint8_t  bReportDescriptorType; */
92	/* uint16_t wDescriptorLength; */
93	/* ... */
94};
95
96/* USB endpoint descriptor */
97#define	USB_MAXENDPOINTS        32
98struct usb_endpoint_descriptor {
99	uint8_t	bLength;
100	uint8_t	bDescriptorType;
101	uint8_t	bEndpointAddress;
102#define	USB_ENDPOINT_ADDRESS_MASK       0x0f
103#define	USB_ENDPOINT_DIR_MASK           0x80
104	uint8_t	bmAttributes;
105#define	USB_ENDPOINT_TYPE_MASK          0x03
106#define	USB_ENDPOINT_TYPE_CONTROL       0
107#define	USB_ENDPOINT_TYPE_ISOCHRONOUS   1
108#define	USB_ENDPOINT_TYPE_BULK          2
109#define	USB_ENDPOINT_TYPE_INTERRUPT     3
110	uint16_t wMaxPacketSize;
111	uint8_t	bInterval;
112	uint8_t	bRefresh;
113	uint8_t	bSynchAddress;
114
115	uint8_t *extra;			/* Extra descriptors */
116	int	extralen;
117};
118
119/* USB interface descriptor */
120#define	USB_MAXINTERFACES       32
121struct usb_interface_descriptor {
122	uint8_t	bLength;
123	uint8_t	bDescriptorType;
124	uint8_t	bInterfaceNumber;
125	uint8_t	bAlternateSetting;
126	uint8_t	bNumEndpoints;
127	uint8_t	bInterfaceClass;
128	uint8_t	bInterfaceSubClass;
129	uint8_t	bInterfaceProtocol;
130	uint8_t	iInterface;
131
132	struct usb_endpoint_descriptor *endpoint;
133
134	uint8_t *extra;			/* Extra descriptors */
135	int	extralen;
136};
137
138#define	USB_MAXALTSETTING       128	/* Hard limit */
139struct usb_interface {
140	struct usb_interface_descriptor *altsetting;
141
142	int	num_altsetting;
143};
144
145/* USB configuration descriptor */
146#define	USB_MAXCONFIG           8
147struct usb_config_descriptor {
148	uint8_t	bLength;
149	uint8_t	bDescriptorType;
150	uint16_t wTotalLength;
151	uint8_t	bNumInterfaces;
152	uint8_t	bConfigurationValue;
153	uint8_t	iConfiguration;
154	uint8_t	bmAttributes;
155	uint8_t	MaxPower;
156
157	struct usb_interface *interface;
158
159	uint8_t *extra;			/* Extra descriptors */
160	int	extralen;
161};
162
163/* USB device descriptor */
164struct usb_device_descriptor {
165	uint8_t	bLength;
166	uint8_t	bDescriptorType;
167	uint16_t bcdUSB;
168	uint8_t	bDeviceClass;
169	uint8_t	bDeviceSubClass;
170	uint8_t	bDeviceProtocol;
171	uint8_t	bMaxPacketSize0;
172	uint16_t idVendor;
173	uint16_t idProduct;
174	uint16_t bcdDevice;
175	uint8_t	iManufacturer;
176	uint8_t	iProduct;
177	uint8_t	iSerialNumber;
178	uint8_t	bNumConfigurations;
179};
180
181/* USB setup packet */
182struct usb_ctrl_setup {
183	uint8_t	bRequestType;
184#define	USB_RECIP_DEVICE                0x00
185#define	USB_RECIP_INTERFACE             0x01
186#define	USB_RECIP_ENDPOINT              0x02
187#define	USB_RECIP_OTHER                 0x03
188#define	USB_TYPE_STANDARD               (0x00 << 5)
189#define	USB_TYPE_CLASS                  (0x01 << 5)
190#define	USB_TYPE_VENDOR                 (0x02 << 5)
191#define	USB_TYPE_RESERVED               (0x03 << 5)
192#define	USB_ENDPOINT_IN                 0x80
193#define	USB_ENDPOINT_OUT                0x00
194	uint8_t	bRequest;
195#define	USB_REQ_GET_STATUS              0x00
196#define	USB_REQ_CLEAR_FEATURE           0x01
197#define	USB_REQ_SET_FEATURE             0x03
198#define	USB_REQ_SET_ADDRESS             0x05
199#define	USB_REQ_GET_DESCRIPTOR          0x06
200#define	USB_REQ_SET_DESCRIPTOR          0x07
201#define	USB_REQ_GET_CONFIGURATION       0x08
202#define	USB_REQ_SET_CONFIGURATION       0x09
203#define	USB_REQ_GET_INTERFACE           0x0A
204#define	USB_REQ_SET_INTERFACE           0x0B
205#define	USB_REQ_SYNCH_FRAME             0x0C
206	uint16_t wValue;
207	uint16_t wIndex;
208	uint16_t wLength;
209};
210
211/* Error codes */
212#define	USB_ERROR_BEGIN                 500000
213
214/* Byte swapping */
215#define	USB_LE16_TO_CPU(x) le16toh(x)
216
217/* Data types */
218struct usb_device;
219struct usb_bus;
220
221/*
222 * To maintain compatibility with applications already built with libusb,
223 * we must only add entries to the end of this structure. NEVER delete or
224 * move members and only change types if you really know what you're doing.
225 */
226struct usb_device {
227	struct usb_device *next;
228	struct usb_device *prev;
229
230	char	filename[PATH_MAX + 1];
231
232	struct usb_bus *bus;
233
234	struct usb_device_descriptor descriptor;
235	struct usb_config_descriptor *config;
236
237	void   *dev;
238
239	uint8_t	devnum;
240
241	uint8_t	num_children;
242	struct usb_device **children;
243};
244
245struct usb_bus {
246	struct usb_bus *next;
247	struct usb_bus *prev;
248
249	char	dirname[PATH_MAX + 1];
250
251	struct usb_device *devices;
252	uint32_t location;
253
254	struct usb_device *root_dev;
255};
256
257struct usb_dev_handle;
258typedef struct usb_dev_handle usb_dev_handle;
259
260/* Variables */
261extern struct usb_bus *usb_busses;
262
263#ifdef __cplusplus
264extern	"C" {
265#endif
266#if 0
267}					/* style */
268
269#endif
270
271/* Function prototypes from "libusb20_compat01.c" */
272
273usb_dev_handle *usb_open(struct usb_device *dev);
274int	usb_close(usb_dev_handle * dev);
275int	usb_get_string(usb_dev_handle * dev, int index, int langid, char *buf, size_t buflen);
276int	usb_get_string_simple(usb_dev_handle * dev, int index, char *buf, size_t buflen);
277int	usb_get_descriptor_by_endpoint(usb_dev_handle * udev, int ep, uint8_t type, uint8_t index, void *buf, int size);
278int	usb_get_descriptor(usb_dev_handle * udev, uint8_t type, uint8_t index, void *buf, int size);
279int	usb_parse_descriptor(uint8_t *source, char *description, void *dest);
280int	usb_parse_configuration(struct usb_config_descriptor *config, uint8_t *buffer);
281void	usb_destroy_configuration(struct usb_device *dev);
282void	usb_fetch_and_parse_descriptors(usb_dev_handle * udev);
283int	usb_bulk_write(usb_dev_handle * dev, int ep, char *bytes, int size, int timeout);
284int	usb_bulk_read(usb_dev_handle * dev, int ep, char *bytes, int size, int timeout);
285int	usb_interrupt_write(usb_dev_handle * dev, int ep, char *bytes, int size, int timeout);
286int	usb_interrupt_read(usb_dev_handle * dev, int ep, char *bytes, int size, int timeout);
287int	usb_control_msg(usb_dev_handle * dev, int requesttype, int request, int value, int index, char *bytes, int size, int timeout);
288int	usb_set_configuration(usb_dev_handle * dev, int configuration);
289int	usb_claim_interface(usb_dev_handle * dev, int interface);
290int	usb_release_interface(usb_dev_handle * dev, int interface);
291int	usb_set_altinterface(usb_dev_handle * dev, int alternate);
292int	usb_resetep(usb_dev_handle * dev, unsigned int ep);
293int	usb_clear_halt(usb_dev_handle * dev, unsigned int ep);
294int	usb_reset(usb_dev_handle * dev);
295int	usb_check_connected(usb_dev_handle * dev);
296const char *usb_strerror(void);
297void	usb_init(void);
298void	usb_set_debug(int level);
299int	usb_find_busses(void);
300int	usb_find_devices(void);
301struct usb_device *usb_device(usb_dev_handle * dev);
302struct usb_bus *usb_get_busses(void);
303int	usb_get_driver_np(usb_dev_handle * dev, int interface, char *name, int namelen);
304int	usb_detach_kernel_driver_np(usb_dev_handle * dev, int interface);
305
306#if 0
307{					/* style */
308#endif
309#ifdef __cplusplus
310}
311
312#endif
313
314#endif					/* _LIBUSB20_COMPAT01_H_ */
315