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diff --git a/include/usb_defs.h b/include/usb_defs.h
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+/*
+ * (C) Copyright 2001
+ * Denis Peter, MPL AG Switzerland
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ *
+ * Note: Part of this code has been derived from linux
+ *
+ */
+#ifndef _USB_DEFS_H_
+#define _USB_DEFS_H_
+
+
+/* Everything is aribtrary */
+#define USB_ALTSETTINGALLOC          4
+#define USB_MAXALTSETTING	           128  /* Hard limit */
+
+#define USB_MAX_DEVICE              32
+#define USB_MAXCONFIG		            8
+#define USB_MAXINTERFACES	          8
+#define USB_MAXENDPOINTS	          16
+#define USB_MAXCHILDREN  						8 	/* This is arbitrary */
+#define USB_MAX_HUB									16
+
+#define USB_CNTL_TIMEOUT 100 /* 100ms timeout */
+
+/* USB constants */
+
+/* Device and/or Interface Class codes */
+#define USB_CLASS_PER_INTERFACE  0	/* for DeviceClass */
+#define USB_CLASS_AUDIO          1
+#define USB_CLASS_COMM           2
+#define USB_CLASS_HID            3
+#define USB_CLASS_PRINTER	       7
+#define USB_CLASS_MASS_STORAGE   8
+#define USB_CLASS_HUB            9
+#define USB_CLASS_DATA           10
+#define USB_CLASS_VENDOR_SPEC    0xff
+
+/* some HID sub classes */
+#define USB_SUB_HID_NONE        0
+#define USB_SUB_HID_BOOT        1
+
+/* some UID Protocols */
+#define USB_PROT_HID_NONE       0
+#define USB_PROT_HID_KEYBOARD   1
+#define USB_PROT_HID_MOUSE      2
+
+
+/* Sub STORAGE Classes */
+#define US_SC_RBC              1		/* Typically, flash devices */
+#define US_SC_8020             2		/* CD-ROM */
+#define US_SC_QIC              3		/* QIC-157 Tapes */
+#define US_SC_UFI              4		/* Floppy */
+#define US_SC_8070             5		/* Removable media */
+#define US_SC_SCSI             6		/* Transparent */
+#define US_SC_MIN              US_SC_RBC
+#define US_SC_MAX              US_SC_SCSI
+
+/* STORAGE Protocols */
+#define US_PR_CB               1		/* Control/Bulk w/o interrupt */
+#define US_PR_CBI              0		/* Control/Bulk/Interrupt */
+#define US_PR_BULK             0x50		/* bulk only */
+
+/* USB types */
+#define USB_TYPE_STANDARD   (0x00 << 5)
+#define USB_TYPE_CLASS      (0x01 << 5)
+#define USB_TYPE_VENDOR     (0x02 << 5)
+#define USB_TYPE_RESERVED   (0x03 << 5)
+
+/* USB recipients */
+#define USB_RECIP_DEVICE      0x00
+#define USB_RECIP_INTERFACE   0x01
+#define USB_RECIP_ENDPOINT    0x02
+#define USB_RECIP_OTHER       0x03
+
+/* USB directions */
+#define USB_DIR_OUT           0
+#define USB_DIR_IN            0x80
+
+/* Descriptor types */
+#define USB_DT_DEVICE        0x01
+#define USB_DT_CONFIG        0x02
+#define USB_DT_STRING        0x03
+#define USB_DT_INTERFACE     0x04
+#define USB_DT_ENDPOINT      0x05
+
+#define USB_DT_HID          (USB_TYPE_CLASS | 0x01)
+#define USB_DT_REPORT       (USB_TYPE_CLASS | 0x02)
+#define USB_DT_PHYSICAL     (USB_TYPE_CLASS | 0x03)
+#define USB_DT_HUB          (USB_TYPE_CLASS | 0x09)
+
+/* Descriptor sizes per descriptor type */
+#define USB_DT_DEVICE_SIZE      18
+#define USB_DT_CONFIG_SIZE      9
+#define USB_DT_INTERFACE_SIZE   9
+#define USB_DT_ENDPOINT_SIZE    7
+#define USB_DT_ENDPOINT_AUDIO_SIZE  9	/* Audio extension */
+#define USB_DT_HUB_NONVAR_SIZE  7
+#define USB_DT_HID_SIZE         9
+
+/* Endpoints */
+#define USB_ENDPOINT_NUMBER_MASK  0x0f	/* in bEndpointAddress */
+#define USB_ENDPOINT_DIR_MASK     0x80
+
+#define USB_ENDPOINT_XFERTYPE_MASK 0x03	/* in bmAttributes */
+#define USB_ENDPOINT_XFER_CONTROL  0
+#define USB_ENDPOINT_XFER_ISOC     1
+#define USB_ENDPOINT_XFER_BULK     2
+#define USB_ENDPOINT_XFER_INT      3
+
+/* USB Packet IDs (PIDs) */
+#define USB_PID_UNDEF_0             0xf0
+#define USB_PID_OUT                 0xe1
+#define USB_PID_ACK                 0xd2
+#define USB_PID_DATA0               0xc3
+#define USB_PID_UNDEF_4             0xb4
+#define USB_PID_SOF                 0xa5
+#define USB_PID_UNDEF_6             0x96
+#define USB_PID_UNDEF_7             0x87
+#define USB_PID_UNDEF_8             0x78
+#define USB_PID_IN                  0x69
+#define USB_PID_NAK                 0x5a
+#define USB_PID_DATA1               0x4b
+#define USB_PID_PREAMBLE            0x3c
+#define USB_PID_SETUP               0x2d
+#define USB_PID_STALL               0x1e
+#define USB_PID_UNDEF_F             0x0f
+
+/* Standard requests */
+#define USB_REQ_GET_STATUS          0x00
+#define USB_REQ_CLEAR_FEATURE       0x01
+#define USB_REQ_SET_FEATURE         0x03
+#define USB_REQ_SET_ADDRESS         0x05
+#define USB_REQ_GET_DESCRIPTOR      0x06
+#define USB_REQ_SET_DESCRIPTOR      0x07
+#define USB_REQ_GET_CONFIGURATION   0x08
+#define USB_REQ_SET_CONFIGURATION   0x09
+#define USB_REQ_GET_INTERFACE       0x0A
+#define USB_REQ_SET_INTERFACE       0x0B
+#define USB_REQ_SYNCH_FRAME         0x0C
+
+/* HID requests */
+#define USB_REQ_GET_REPORT          0x01
+#define USB_REQ_GET_IDLE            0x02
+#define USB_REQ_GET_PROTOCOL        0x03
+#define USB_REQ_SET_REPORT          0x09
+#define USB_REQ_SET_IDLE            0x0A
+#define USB_REQ_SET_PROTOCOL        0x0B
+
+
+/* "pipe" definitions */
+
+#define PIPE_ISOCHRONOUS    0
+#define PIPE_INTERRUPT      1
+#define PIPE_CONTROL        2
+#define PIPE_BULK           3
+#define PIPE_DEVEP_MASK     0x0007ff00
+
+#define USB_ISOCHRONOUS    0
+#define USB_INTERRUPT      1
+#define USB_CONTROL        2
+#define USB_BULK           3
+
+/* USB-status codes: */
+#define USB_ST_ACTIVE           0x1		/* TD is active */
+#define USB_ST_STALLED          0x2		/* TD is stalled */
+#define USB_ST_BUF_ERR          0x4		/* buffer error */
+#define USB_ST_BABBLE_DET       0x8		/* Babble detected */
+#define USB_ST_NAK_REC          0x10	/* NAK Received*/
+#define USB_ST_CRC_ERR          0x20	/* CRC/timeout Error */
+#define USB_ST_BIT_ERR          0x40	/* Bitstuff error */
+#define USB_ST_NOT_PROC         0x80000000L	/* Not yet processed */
+
+
+
+/*************************************************************************
+ * Hub defines
+ */
+
+/*
+ * Hub request types
+ */
+
+#define USB_RT_HUB	(USB_TYPE_CLASS | USB_RECIP_DEVICE)
+#define USB_RT_PORT	(USB_TYPE_CLASS | USB_RECIP_OTHER)
+
+/*
+ * Hub Class feature numbers
+ */
+#define C_HUB_LOCAL_POWER   0
+#define C_HUB_OVER_CURRENT  1
+
+/*
+ * Port feature numbers
+ */
+#define USB_PORT_FEAT_CONNECTION     0
+#define USB_PORT_FEAT_ENABLE         1
+#define USB_PORT_FEAT_SUSPEND        2
+#define USB_PORT_FEAT_OVER_CURRENT   3
+#define USB_PORT_FEAT_RESET          4
+#define USB_PORT_FEAT_POWER          8
+#define USB_PORT_FEAT_LOWSPEED       9
+#define USB_PORT_FEAT_C_CONNECTION   16
+#define USB_PORT_FEAT_C_ENABLE       17
+#define USB_PORT_FEAT_C_SUSPEND      18
+#define USB_PORT_FEAT_C_OVER_CURRENT 19
+#define USB_PORT_FEAT_C_RESET        20
+
+/* wPortStatus bits */
+#define USB_PORT_STAT_CONNECTION    0x0001
+#define USB_PORT_STAT_ENABLE        0x0002
+#define USB_PORT_STAT_SUSPEND       0x0004
+#define USB_PORT_STAT_OVERCURRENT   0x0008
+#define USB_PORT_STAT_RESET         0x0010
+#define USB_PORT_STAT_POWER         0x0100
+#define USB_PORT_STAT_LOW_SPEED     0x0200
+
+/* wPortChange bits */
+#define USB_PORT_STAT_C_CONNECTION  0x0001
+#define USB_PORT_STAT_C_ENABLE      0x0002
+#define USB_PORT_STAT_C_SUSPEND     0x0004
+#define USB_PORT_STAT_C_OVERCURRENT 0x0008
+#define USB_PORT_STAT_C_RESET       0x0010
+
+/* wHubCharacteristics (masks) */
+#define HUB_CHAR_LPSM               0x0003
+#define HUB_CHAR_COMPOUND           0x0004
+#define HUB_CHAR_OCPM               0x0018
+
+/*
+ *Hub Status & Hub Change bit masks
+ */
+#define HUB_STATUS_LOCAL_POWER	0x0001
+#define HUB_STATUS_OVERCURRENT	0x0002
+
+#define HUB_CHANGE_LOCAL_POWER	0x0001
+#define HUB_CHANGE_OVERCURRENT	0x0002
+
+#endif /*_USB_DEFS_H_ */