Home | History | Annotate | Line # | Download | only in usb
usb.h revision 1.10
      1 /*	$NetBSD: usb.h,v 1.10 1998/12/28 03:27:00 augustss Exp $	*/
      2 
      3 /*
      4  * Copyright (c) 1998 The NetBSD Foundation, Inc.
      5  * All rights reserved.
      6  *
      7  * This code is derived from software contributed to The NetBSD Foundation
      8  * by Lennart Augustsson (augustss (at) carlstedt.se) at
      9  * Carlstedt Research & Technology.
     10  *
     11  * Redistribution and use in source and binary forms, with or without
     12  * modification, are permitted provided that the following conditions
     13  * are met:
     14  * 1. Redistributions of source code must retain the above copyright
     15  *    notice, this list of conditions and the following disclaimer.
     16  * 2. Redistributions in binary form must reproduce the above copyright
     17  *    notice, this list of conditions and the following disclaimer in the
     18  *    documentation and/or other materials provided with the distribution.
     19  * 3. All advertising materials mentioning features or use of this software
     20  *    must display the following acknowledgement:
     21  *        This product includes software developed by the NetBSD
     22  *        Foundation, Inc. and its contributors.
     23  * 4. Neither the name of The NetBSD Foundation nor the names of its
     24  *    contributors may be used to endorse or promote products derived
     25  *    from this software without specific prior written permission.
     26  *
     27  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     28  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     29  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     30  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     31  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     32  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     33  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     34  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     35  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     36  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     37  * POSSIBILITY OF SUCH DAMAGE.
     38  */
     39 
     40 
     41 #ifndef _USB_H_
     42 #define _USB_H_
     43 
     44 #include <sys/types.h>
     45 #if defined(__NetBSD__)
     46 #include <sys/ioctl.h>
     47 #endif
     48 
     49 #if defined(__NetBSD__)
     50 #if defined(_KERNEL)
     51 #include <dev/usb/usb_port.h>
     52 #endif /* _KERNEL */
     53 
     54 #elif defined(__FreeBSD__)
     55 #include <sys/malloc.h>
     56 
     57 #if defined(KERNEL)
     58 MALLOC_DECLARE(M_USB);
     59 MALLOC_DECLARE(M_USBDEV);
     60 
     61 #include <dev/usb/usb_port.h>
     62 #endif /* KERNEL */
     63 #endif /* __FreeBSD__ */
     64 
     65 
     66 #define USB_MAX_DEVICES 128
     67 #define USB_START_ADDR 0
     68 
     69 #define USB_CONTROL_ENDPOINT 0
     70 #define USB_MAX_ENDPOINTS 16
     71 
     72 #define USB_FRAMES_PER_SECOND 1000
     73 
     74 /*
     75  * The USB records contain some unaligned little-endian word
     76  * components.  The U[SG]ETW macros take care of both the alignment
     77  * and endian problem and should always be used to access 16 bit
     78  * values.
     79  */
     80 typedef u_int8_t uByte;
     81 typedef u_int8_t uWord[2];
     82 #define UGETW(w) ((w)[0] | ((w)[1] << 8))
     83 #define USETW(w,v) ((w)[0] = (u_int8_t)(v), (w)[1] = (u_int8_t)((v) >> 8))
     84 #define USETW2(w,h,l) ((w)[0] = (u_int8_t)(l), (w)[1] = (u_int8_t)(h))
     85 /*
     86  * On little-endian machines that can handle unanliged accesses
     87  * (e.g. i386) these macros can be replaced by the following.
     88  */
     89 #if 0
     90 #define UGETW(w) (*(u_int16_t *)(w))
     91 #define USETW(w,v) (*(u_int16_t *)(w) = (v))
     92 #endif
     93 
     94 typedef struct {
     95 	uByte		bmRequestType;
     96 	uByte		bRequest;
     97 	uWord		wValue;
     98 	uWord		wIndex;
     99 	uWord		wLength;
    100 } usb_device_request_t;
    101 
    102 #define UT_WRITE		0x00
    103 #define UT_READ			0x80
    104 #define UT_STANDARD		0x00
    105 #define UT_CLASS		0x20
    106 #define UT_VENDOR		0x40
    107 #define UT_DEVICE		0x00
    108 #define UT_INTERFACE		0x01
    109 #define UT_ENDPOINT		0x02
    110 #define UT_OTHER		0x03
    111 
    112 #define UT_READ_DEVICE		(UT_READ  | UT_STANDARD | UT_DEVICE)
    113 #define UT_READ_INTERFACE	(UT_READ  | UT_STANDARD | UT_INTERFACE)
    114 #define UT_READ_ENDPOINT	(UT_READ  | UT_STANDARD | UT_ENDPOINT)
    115 #define UT_WRITE_DEVICE		(UT_WRITE | UT_STANDARD | UT_DEVICE)
    116 #define UT_WRITE_INTERFACE	(UT_WRITE | UT_STANDARD | UT_INTERFACE)
    117 #define UT_WRITE_ENDPOINT	(UT_WRITE | UT_STANDARD | UT_ENDPOINT)
    118 #define UT_READ_CLASS_DEVICE	(UT_READ  | UT_CLASS | UT_DEVICE)
    119 #define UT_READ_CLASS_INTERFACE	(UT_READ  | UT_CLASS | UT_INTERFACE)
    120 #define UT_READ_CLASS_OTHER	(UT_READ  | UT_CLASS | UT_OTHER)
    121 #define UT_WRITE_CLASS_DEVICE	(UT_WRITE | UT_CLASS | UT_DEVICE)
    122 #define UT_WRITE_CLASS_INTERFACE (UT_WRITE | UT_CLASS | UT_INTERFACE)
    123 #define UT_WRITE_CLASS_OTHER	(UT_WRITE | UT_CLASS | UT_OTHER)
    124 
    125 /* Requests */
    126 #define UR_GET_STATUS		0x00
    127 #define UR_CLEAR_FEATURE	0x01
    128 #define UR_SET_FEATURE		0x03
    129 #define UR_SET_ADDRESS		0x05
    130 #define UR_GET_DESCRIPTOR	0x06
    131 #define  UDESC_DEVICE		1
    132 #define  UDESC_CONFIG		2
    133 #define  UDESC_STRING		3
    134 #define  UDESC_INTERFACE	4
    135 #define  UDESC_ENDPOINT		5
    136 #define UR_SET_DESCRIPTOR	0x07
    137 #define UR_GET_CONFIG		0x08
    138 #define UR_SET_CONFIG		0x09
    139 #define UR_GET_INTERFACE	0x0a
    140 #define UR_SET_INTERFACE	0x0b
    141 #define UR_SYNCH_FRAME		0x0c
    142 
    143 /* Feature numbers */
    144 #define UF_ENDPOINT_HALT	0
    145 #define UF_DEVICE_REMOTE_WAKEUP	1
    146 
    147 #define USB_MAX_IPACKET		8 /* maximum size of the initial packet */
    148 
    149 typedef struct {
    150 	uByte		bLength;
    151 	uByte		bDescriptorType;
    152 	uByte		bDescriptorSubtype;
    153 } usb_descriptor_t;
    154 
    155 typedef struct {
    156 	uByte		bLength;
    157 	uByte		bDescriptorType;
    158 	uWord		bcdUSB;
    159 	uByte		bDeviceClass;
    160 	uByte		bDeviceSubClass;
    161 	uByte		bDeviceProtocol;
    162 	uByte		bMaxPacketSize;
    163 	/* The fields below are not part of the initial descriptor. */
    164 	uWord		idVendor;
    165 	uWord		idProduct;
    166 	uWord		bcdDevice;
    167 	uByte		iManufacturer;
    168 	uByte		iProduct;
    169 	uByte		iSerialNumber;
    170 	uByte		bNumConfigurations;
    171 } usb_device_descriptor_t;
    172 #define USB_DEVICE_DESCRIPTOR_SIZE 18
    173 
    174 typedef struct {
    175 	uByte		bLength;
    176 	uByte		bDescriptorType;
    177 	uWord		wTotalLength;
    178 	uByte		bNumInterface;
    179 	uByte		bConfigurationValue;
    180 	uByte		iConfiguration;
    181 	uByte		bmAttributes;
    182 #define UC_BUS_POWERED		0x80
    183 #define UC_SELF_POWERED		0x40
    184 #define UC_REMOTE_WAKEUP	0x20
    185 	uByte		bMaxPower; /* max current in 2 mA units */
    186 #define UC_POWER_FACTOR 2
    187 } usb_config_descriptor_t;
    188 #define USB_CONFIG_DESCRIPTOR_SIZE 9
    189 
    190 typedef struct {
    191 	uByte		bLength;
    192 	uByte		bDescriptorType;
    193 	uByte		bInterfaceNumber;
    194 	uByte		bAlternateSetting;
    195 	uByte		bNumEndpoints;
    196 	uByte		bInterfaceClass;
    197 	uByte		bInterfaceSubClass;
    198 	uByte		bInterfaceProtocol;
    199 	uByte		iInterface;
    200 } usb_interface_descriptor_t;
    201 #define USB_INTERFACE_DESCRIPTOR_SIZE 9
    202 
    203 typedef struct {
    204 	uByte		bLength;
    205 	uByte		bDescriptorType;
    206 	uByte		bEndpointAddress;
    207 #define UE_IN		0x80
    208 #define UE_OUT		0x00
    209 #define UE_ADDR		0x0f
    210 #define UE_GET_ADDR(a)	((a) & UE_ADDR)
    211 #define UE_GET_IN(a)	(((a) >> 7) & 1)
    212 	uByte		bmAttributes;
    213 #define UE_XFERTYPE	0x03
    214 #define  UE_CONTROL	0x00
    215 #define  UE_ISOCHRONOUS	0x01
    216 #define  UE_BULK	0x02
    217 #define  UE_INTERRUPT	0x03
    218 #define UE_ISO_TYPE	0x0c
    219 #define  UE_ISO_ASYNC	0x04
    220 #define  UE_ISO_ADAPT	0x08
    221 #define  UE_ISO_SYNC	0x0c
    222 	uWord		wMaxPacketSize;
    223 	uByte		bInterval;
    224 } usb_endpoint_descriptor_t;
    225 #define USB_ENDPOINT_DESCRIPTOR_SIZE 7
    226 
    227 typedef struct {
    228 	uByte		bLength;
    229 	uByte		bDescriptorType;
    230 	uWord		bString[127];
    231 } usb_string_descriptor_t;
    232 #define USB_MAX_STRING_LEN 128
    233 
    234 /* Hub specific request */
    235 #define UR_GET_BUS_STATE	0x02
    236 
    237 /* Hub features */
    238 #define UHF_C_HUB_LOCAL_POWER	0
    239 #define UHF_C_HUB_OVER_CURRENT	1
    240 #define UHF_PORT_CONNECTION	0
    241 #define UHF_PORT_ENABLE		1
    242 #define UHF_PORT_SUSPEND	2
    243 #define UHF_PORT_OVER_CURRENT	3
    244 #define UHF_PORT_RESET		4
    245 #define UHF_PORT_POWER		8
    246 #define UHF_PORT_LOW_SPEED	9
    247 #define UHF_C_PORT_CONNECTION	16
    248 #define UHF_C_PORT_ENABLE	17
    249 #define UHF_C_PORT_SUSPEND	18
    250 #define UHF_C_PORT_OVER_CURRENT	19
    251 #define UHF_C_PORT_RESET	20
    252 
    253 typedef struct {
    254 	uByte		bDescLength;
    255 	uByte		bDescriptorType;
    256 	uByte		bNbrPorts;
    257 	uWord		wHubCharacteristics;
    258 #define UHD_PWR			0x03
    259 #define UHD_PWR_GANGED		0x00
    260 #define UHD_PWR_INDIVIDUAL	0x01
    261 #define UHD_PWR_NO_SWITCH	0x02
    262 #define UHD_COMPOUND		0x04
    263 #define UHD_OC			0x18
    264 #define UHD_OC_GLOBAL		0x00
    265 #define UHD_OC_INDIVIDUAL	0x08
    266 #define UHD_OC_NONE		0x10
    267 	uByte		bPwrOn2PwrGood;	/* delay in 2 ms units */
    268 #define UHD_PWRON_FACTOR 2
    269 	uByte		bHubContrCurrent;
    270 	uByte		DeviceRemovable[32]; /* max 255 ports */
    271 #define UHD_NOT_REMOV(desc, i) \
    272     (((desc)->DeviceRemovable[(i)/8] >> ((i) % 8)) & 1)
    273 	/* deprecated uByte		PortPowerCtrlMask[]; */
    274 } usb_hub_descriptor_t;
    275 #define USB_HUB_DESCRIPTOR_SIZE 8
    276 
    277 typedef struct {
    278 	uWord		wStatus;
    279 /* Device status flags */
    280 #define UDS_SELF_POWERED		0x0001
    281 #define UDS_REMOTE_WAKEUP		0x0002
    282 /* Endpoint status flags */
    283 #define UES_HALT			0x0001
    284 } usb_status_t;
    285 
    286 typedef struct {
    287 	uWord		wHubStatus;
    288 #define UHS_LOCAL_POWER			0x0001
    289 #define UHS_OVER_CURRENT		0x0002
    290 	uWord		wHubChange;
    291 } usb_hub_status_t;
    292 
    293 typedef struct {
    294 	uWord		wPortStatus;
    295 #define UPS_CURRENT_CONNECT_STATUS	0x0001
    296 #define UPS_PORT_ENABLED		0x0002
    297 #define UPS_SUSPEND			0x0004
    298 #define UPS_OVERCURRENT_INDICATOR	0x0008
    299 #define UPS_RESET			0x0010
    300 #define UPS_PORT_POWER			0x0100
    301 #define UPS_LOW_SPEED			0x0200
    302 	uWord		wPortChange;
    303 #define UPS_C_CONNECT_STATUS		0x0001
    304 #define UPS_C_PORT_ENABLED		0x0002
    305 #define UPS_C_SUSPEND			0x0004
    306 #define UPS_C_OVERCURRENT_INDICATOR	0x0008
    307 #define UPS_C_PORT_RESET		0x0010
    308 } usb_port_status_t;
    309 
    310 #define UDESC_CS_DEVICE		0x21
    311 #define UDESC_CS_CONFIG		0x22
    312 #define UDESC_CS_STRING		0x23
    313 #define UDESC_CS_INTERFACE	0x24
    314 #define UDESC_CS_ENDPOINT	0x25
    315 
    316 #define UDESC_HUB		0x29
    317 
    318 #define UCLASS_UNSPEC		0
    319 #define UCLASS_AUDIO		1
    320 #define  USUBCLASS_AUDIOCONTROL	1
    321 #define  USUBCLASS_AUDIOSTREAM	2
    322 #define UCLASS_CDC		2
    323 #define  USUBCLASS_ABSTRACT_CONTROL_MODEL	2
    324 #define   UPROTO_CDC_AT		1
    325 #define UCLASS_HID		3
    326 #define  USUBCLASS_BOOT	 	1
    327 #define UCLASS_PRINTER		7
    328 #define  USUBCLASS_PRINTER	1
    329 #define  UPROTO_PRINTER_UNI	1
    330 #define  UPROTO_PRINTER_BI	2
    331 #define UCLASS_HUB		9
    332 #define  USUBCLASS_HUB		0
    333 #define UCLASS_DATA		10
    334 
    335 #define USB_HUB_MAX_DEPTH 5
    336 
    337 /*
    338  * Minimum time a device needs to be powered down to go through
    339  * a power cycle.  XXX Is this time in the spec?
    340  */
    341 #define USB_POWER_DOWN_TIME	1000 /* ms */
    342 #define USB_PORT_POWER_DOWN_TIME	100 /* ms */
    343 
    344 #if 0
    345 /* These are the values from the spec. */
    346 #define USB_PORT_RESET_DELAY	10  /* ms */
    347 #define USB_PORT_RESET_SETTLE	10  /* ms */
    348 #define USB_PORT_POWERUP_DELAY	100 /* ms */
    349 #define USB_SET_ADDRESS_SETTLE	2   /* ms */
    350 #else
    351 /* Allow for marginal (i.e. non-conforming) devices. */
    352 #define USB_PORT_RESET_DELAY	10  /* ms */
    353 #define USB_PORT_RESET_RECOVERY	20  /* ms */
    354 #define USB_PORT_POWERUP_DELAY	200 /* ms */
    355 #define USB_SET_ADDRESS_SETTLE	10  /* ms */
    356 #endif
    357 
    358 #define USB_MIN_POWER		100 /* mA */
    359 #define USB_MAX_POWER		500 /* mA */
    360 
    361 
    362 #define USB_RESET_DELAY		100 /* ms XXX?*/
    363 #define USB_RESUME_DELAY	10  /* ms XXX?*/
    364 
    365 /*** ioctl() related stuff ***/
    366 
    367 struct usb_ctl_request {
    368 	int	addr;
    369 	usb_device_request_t request;
    370 	void	*data;
    371 };
    372 
    373 struct usb_alt_interface {
    374 	int	config_index;
    375 	int	interface_index;
    376 	int	alt_no;
    377 };
    378 
    379 #define USB_CURRENT_CONFIG_INDEX (-1)
    380 #define USB_CURRENT_ALT_INDEX (-1)
    381 
    382 struct usb_config_desc {
    383 	int	config_index;
    384 	usb_config_descriptor_t desc;
    385 };
    386 
    387 struct usb_interface_desc {
    388 	int	config_index;
    389 	int	interface_index;
    390 	int	alt_index;
    391 	usb_interface_descriptor_t desc;
    392 };
    393 
    394 struct usb_endpoint_desc {
    395 	int	config_index;
    396 	int	interface_index;
    397 	int	alt_index;
    398 	int	endpoint_index;
    399 	usb_endpoint_descriptor_t desc;
    400 };
    401 
    402 struct usb_full_desc {
    403 	int	config_index;
    404 	u_int	size;
    405 	u_char	*data;
    406 };
    407 
    408 struct usb_string_desc {
    409 	int	string_index;
    410 	int	language_id;
    411 	usb_string_descriptor_t desc;
    412 };
    413 
    414 struct usb_ctl_report_desc {
    415 	int	size;
    416 	u_char	data[1024];	/* filled data size will vary */
    417 };
    418 
    419 struct usb_device_info {
    420 	uByte	addr;		/* device address */
    421 	char	product[USB_MAX_STRING_LEN];
    422 	char	vendor[USB_MAX_STRING_LEN];
    423 	char	revision[8];
    424 	uByte	class;
    425 	uByte	config;
    426 	uByte	lowspeed;
    427 	int	power;		/* power consumption in mA, 0 if selfpowered */
    428 	int	nports;
    429 	uByte	ports[16];	/* hub only: addresses of devices on ports */
    430 #define USB_PORT_ENABLED 0xff
    431 #define USB_PORT_SUSPENDED 0xfe
    432 #define USB_PORT_POWERED 0xfd
    433 #define USB_PORT_DISABLED 0xfc
    434 };
    435 
    436 struct usb_ctl_report {
    437 	int report;
    438 	u_char	data[1024];	/* filled data size will vary */
    439 };
    440 
    441 struct usb_device_stats {
    442 	u_long	requests[4];	/* indexed by transfer type UE_* */
    443 };
    444 
    445 /* USB controller */
    446 #define USB_REQUEST		_IOWR('U', 1, struct usb_ctl_request)
    447 #define USB_SETDEBUG		_IOW ('U', 2, int)
    448 #define USB_DISCOVER		_IO  ('U', 3)
    449 #define USB_DEVICEINFO		_IOWR('U', 4, struct usb_device_info)
    450 #define USB_DEVICESTATS		_IOR ('U', 5, struct usb_device_stats)
    451 
    452 /* Generic HID device */
    453 #define USB_GET_REPORT_DESC	_IOR ('U', 21, struct usb_ctl_report_desc)
    454 #define USB_SET_IMMED		_IOW ('U', 22, int)
    455 #define USB_GET_REPORT		_IOWR('U', 23, struct usb_ctl_report)
    456 
    457 /* Generic USB device */
    458 #define USB_GET_CONFIG		_IOR ('U', 100, int)
    459 #define USB_SET_CONFIG		_IOW ('U', 101, int)
    460 #define USB_GET_ALTINTERFACE	_IOWR('U', 102, struct usb_alt_interface)
    461 #define USB_SET_ALTINTERFACE	_IOWR('U', 103, struct usb_alt_interface)
    462 #define USB_GET_NO_ALT		_IOWR('U', 104, struct usb_alt_interface)
    463 #define USB_GET_DEVICE_DESC	_IOR ('U', 105, usb_device_descriptor_t)
    464 #define USB_GET_CONFIG_DESC	_IOWR('U', 106, struct usb_config_desc)
    465 #define USB_GET_INTERFACE_DESC	_IOWR('U', 107, struct usb_interface_desc)
    466 #define USB_GET_ENDPOINT_DESC	_IOWR('U', 108, struct usb_endpoint_desc)
    467 #define USB_GET_FULL_DESC	_IOWR('U', 109, struct usb_full_desc)
    468 #define USB_GET_STRING_DESC	_IOWR('U', 110, struct usb_string_desc)
    469 #define USB_DO_REQUEST		_IOWR('U', 111, struct usb_ctl_request)
    470 #define USB_GET_DEVICEINFO	_IOR ('U', 112, struct usb_device_info)
    471 
    472 #endif /* _USB_H_ */
    473