include/minix/usb_ch9.h

   1 #ifndef MINIX_USB_CH9_H
   2 #define MINIX_USB_CH9_H
   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 (lennart@augustsson.net) 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 /* USB DESCRIPTORS */
  40 /*
  41  * The USB records contain some unaligned little-endian word
  42  * components.  The U[SG]ETW macros take care of both the alignment
  43  * and endian problem and should always be used to access non-byte
  44  * values.
  45  */
  46
  47 #include <minix/types.h>
  48
  49 typedef u8_t uByte;
  50 typedef u8_t uWord[2];
  51 typedef u8_t uDWord[4];
  52
  53 #define USETW2(w,h,l) ((w)[0] = (u_int8_t)(l), (w)[1] = (u_int8_t)(h))
  54
  55 #if 1
  56 #define UGETW(w) ((w)[0] | ((w)[1] << 8))
  57 #define USETW(w,v) ((w)[0] = (u_int8_t)(v), (w)[1] = (u_int8_t)((v) >> 8))
  58 #define UGETDW(w) ((w)[0] | ((w)[1] << 8) | ((w)[2] << 16) | ((w)[3] << 24))
  59 #define USETDW(w,v) ((w)[0] = (u_int8_t)(v), \
  60                      (w)[1] = (u_int8_t)((v) >> 8), \
  61                      (w)[2] = (u_int8_t)((v) >> 16), \
  62                      (w)[3] = (u_int8_t)((v) >> 24))
  63 #else
  64 /*
  65  * On little-endian machines that can handle unanliged accesses
  66  * (e.g. i386) these macros can be replaced by the following.
  67  */
  68 #define UGETW(w) (*(u_int16_t *)(w))
  69 #define USETW(w,v) (*(u_int16_t *)(w) = (v))
  70 #define UGETDW(w) (*(u_int32_t *)(w))
  71 #define USETDW(w,v) (*(u_int32_t *)(w) = (v))
  72 #endif
  73
  74 #define UPACKED __attribute__((__packed__))
  75
  76 /* Requests */
  77 #define UR_GET_STATUS           0x00
  78 #define UR_CLEAR_FEATURE        0x01
  79 #define UR_SET_FEATURE          0x03
  80 #define UR_SET_ADDRESS          0x05
  81 #define UR_GET_DESCRIPTOR       0x06
  82 #define UDESC_DEVICE            0x01
  83 #define UDESC_CONFIG            0x02
  84 #define UDESC_STRING            0x03
  85 #define USB_LANGUAGE_TABLE      0x00    /* language ID string index */
  86 #define UDESC_INTERFACE         0x04
  87 #define UDESC_ENDPOINT          0x05
  88 #define UDESC_DEVICE_QUALIFIER  0x06
  89 #define UDESC_OTHER_SPEED_CONFIGURATION 0x07
  90 #define UDESC_INTERFACE_POWER   0x08
  91 #define UDESC_OTG               0x09
  92 #define UDESC_DEBUG             0x0A
  93 #define UDESC_IFACE_ASSOC       0x0B    /* interface association */
  94 #define UDESC_BOS               0x0F    /* binary object store */
  95 #define UDESC_DEVICE_CAPABILITY 0x10
  96 #define UDESC_CS_DEVICE         0x21    /* class specific */
  97 #define UDESC_CS_CONFIG         0x22
  98 #define UDESC_CS_STRING         0x23
  99 #define UDESC_CS_INTERFACE      0x24
 100 #define UDESC_CS_ENDPOINT       0x25
 101 #define UDESC_HUB               0x29
 102 #define UDESC_ENDPOINT_SS_COMP  0x30    /* super speed */
 103 #define UR_SET_DESCRIPTOR       0x07
 104 #define UR_GET_CONFIG           0x08
 105 #define UR_SET_CONFIG           0x09
 106 #define UR_GET_INTERFACE        0x0a
 107 #define UR_SET_INTERFACE        0x0b
 108 #define UR_SYNCH_FRAME          0x0c
 109 #define UR_SET_SEL              0x30
 110 #define UR_ISOCH_DELAY          0x31
 111
 112
 113
 114 typedef struct {
 115         uByte           bLength;
 116         uByte           bDescriptorType;
 117         uByte           bDescriptorSubtype;
 118 } UPACKED usb_descriptor_t;
 119
 120
 121 typedef struct {
 122         uByte           bLength;
 123         uByte           bDescriptorType;
 124         uWord           bcdUSB;
 125 #define UD_USB_2_0              0x0200
 126 #define UD_IS_USB2(d) (UGETW((d)->bcdUSB) >= UD_USB_2_0)
 127         uByte           bDeviceClass;
 128         uByte           bDeviceSubClass;
 129         uByte           bDeviceProtocol;
 130         uByte           bMaxPacketSize;
 131         /* The fields below are not part of the initial descriptor. */
 132         uWord           idVendor;
 133         uWord           idProduct;
 134         uWord           bcdDevice;
 135         uByte           iManufacturer;
 136         uByte           iProduct;
 137         uByte           iSerialNumber;
 138         uByte           bNumConfigurations;
 139 } UPACKED usb_device_descriptor_t;
 140 #define USB_DEVICE_DESCRIPTOR_SIZE 18
 141
 142 typedef struct {
 143         uByte           bLength;
 144         uByte           bDescriptorType;
 145         uWord           wTotalLength;
 146         uByte           bNumInterface;
 147         uByte           bConfigurationValue;
 148         uByte           iConfiguration;
 149         uByte           bmAttributes;
 150 #define UC_BUS_POWERED          0x80
 151 #define UC_SELF_POWERED         0x40
 152 #define UC_REMOTE_WAKEUP        0x20
 153         uByte           bMaxPower; /* max current in 2 mA units */
 154 #define UC_POWER_FACTOR 2
 155 } UPACKED usb_config_descriptor_t;
 156 #define USB_CONFIG_DESCRIPTOR_SIZE 9
 157
 158 typedef struct {
 159         uByte           bLength;
 160         uByte           bDescriptorType;
 161         uByte           bInterfaceNumber;
 162         uByte           bAlternateSetting;
 163         uByte           bNumEndpoints;
 164         uByte           bInterfaceClass;
 165         uByte           bInterfaceSubClass;
 166         uByte           bInterfaceProtocol;
 167         uByte           iInterface;
 168 } UPACKED usb_interface_descriptor_t;
 169 #define USB_INTERFACE_DESCRIPTOR_SIZE 9
 170
 171 typedef struct {
 172         uByte           bLength;
 173         uByte           bDescriptorType;
 174         uByte           bEndpointAddress;
 175 #define UE_GET_DIR(a)   ((a) & 0x80)
 176 #define UE_SET_DIR(a,d) ((a) | (((d)&1) << 7))
 177 #define UE_DIR_IN       0x80
 178 #define UE_DIR_OUT      0x00
 179 #define UE_ADDR         0x0f
 180 #define UE_GET_ADDR(a)  ((a) & UE_ADDR)
 181         uByte           bmAttributes;
 182 #define UE_XFERTYPE     0x03
 183 #define  UE_CONTROL     0x00
 184 #define  UE_ISOCHRONOUS 0x01
 185 #define  UE_BULK        0x02
 186 #define  UE_INTERRUPT   0x03
 187 #define UE_GET_XFERTYPE(a)      ((a) & UE_XFERTYPE)
 188 #define UE_ISO_TYPE     0x0c
 189 #define  UE_ISO_ASYNC   0x04
 190 #define  UE_ISO_ADAPT   0x08
 191 #define  UE_ISO_SYNC    0x0c
 192 #define UE_GET_ISO_TYPE(a)      ((a) & UE_ISO_TYPE)
 193         uWord           wMaxPacketSize;
 194         uByte           bInterval;
 195 } UPACKED usb_endpoint_descriptor_t;
 196 #define USB_ENDPOINT_DESCRIPTOR_SIZE 7
 197
 198 typedef struct {
 199         uByte           bLength;
 200         uByte           bDescriptorType;
 201         uWord           bString[127];
 202 } UPACKED usb_string_descriptor_t;
 203
 204 #define USB_MAX_STRING_LEN 128
 205 #define USB_MAX_ENCODED_STRING_LEN (USB_MAX_STRING_LEN * 3) /* UTF8 */
 206
 207 struct usb_device_request {
 208         uByte   bmRequestType;
 209         uByte   bRequest;
 210         uWord   wValue;
 211         uWord   wIndex;
 212         uWord   wLength;
 213 } UPACKED;
 214 typedef struct usb_device_request usb_device_request_t;
 215
 216
 217 #endif