408 lines
12 KiB
C++
408 lines
12 KiB
C++
/////////////////////////////////////////////////////////////////////////
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// $Id: pciusb.h,v 1.18 2006-05-27 15:54:48 sshwarts Exp $
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/////////////////////////////////////////////////////////////////////////
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//
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// Copyright (C) 2004 MandrakeSoft S.A.
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//
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// MandrakeSoft S.A.
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// 43, rue d'Aboukir
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// 75002 Paris - France
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// http://www.linux-mandrake.com/
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// http://www.mandrakesoft.com/
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//
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// This library is free software; you can redistribute it and/or
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// modify it under the terms of the GNU Lesser General Public
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// License as published by the Free Software Foundation; either
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// version 2 of the License, or (at your option) any later version.
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//
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// This library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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// Lesser General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public
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// License along with this library; if not, write to the Free Software
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// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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// Benjamin D Lunt (fys at frontiernet net) coded most of this usb emulation.
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#ifndef BX_IODEV_PCIUSB_H
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#define BX_IODEV_PCIUSB_H
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#if BX_USE_PCIUSB_SMF
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# define BX_USB_THIS theUSBDevice->
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# define BX_USB_THIS_PTR theUSBDevice
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#else
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# define BX_USB_THIS this->
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# define BX_USB_THIS_PTR this
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#endif
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#define BX_USB_MAXDEV 1
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#define BX_USB_CONFDEV 1 /* only 1 USB hub currently */
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#define USB_NUM_PORTS 2 /* UHCI supports 2 ports per root hub */
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#define USB_CUR_DEVS 3
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#define TOKEN_IN 0x69
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#define TOKEN_OUT 0xE1
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#define TOKEN_SETUP 0x2D
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// device requests
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enum { GET_STATUS=0, CLEAR_FEATURE, SET_FEATURE=3, SET_ADDRESS=5, GET_DESCRIPTOR=6, SET_DESCRIPTOR,
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GET_CONFIGURATION, SET_CONFIGURATION,
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// interface requests
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GET_INTERFACE, SET_INTERFACE,
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// standard endpoint requests
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SYNCH_FRAME
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};
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#define SET_FEATURE_TEST_MODE 0 /////////TODO: I don't know yet what this value is to be
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// Descriptor types
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enum { DEVICE=1, CONFIG, STRING, INTERFACE, ENDPOINT, // USB 1.1
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DEVICE_QUALIFIER, OTHER_SPEED_CONFIG, INTERFACE_POWER // USB 2.0
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};
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#define STATE_DEFAULT 0
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#define STATE_ADDRESS 1
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#define STATE_CONFIGURED 2
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// setup packets
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struct REQUEST_PACKET {
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Bit8u request_type;
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Bit8u request;
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Bit16u value;
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Bit16u index;
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Bit16u length;
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};
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#define KEYPAD_LEN 128
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struct KEYPAD {
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Bit8u scan_code[8];
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Bit8u keypad_packet[8];
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};
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#define USB_DEV_TYPE_NONE 0
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#define USB_DEV_TYPE_MOUSE 1
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#define USB_DEV_TYPE_KEYPAD 2
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#define USB_DEV_TYPE_FLASH 3
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// set it to 1 (align on byte) and save so we can pop it
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#pragma pack(push, 1)
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struct USB_DEVICE {
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int dev_type; // our device type
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bx_bool connect_status; // is device connected
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Bit8u address; // 7 bit address
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Bit8u config; // which configuration to use
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Bit8u Interface; // which interface to use
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Bit8u alt_interface; // which alt interface to use
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Bit8u endpt; // which endpt to use
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unsigned state; // the state the device is in. DEFAULT, ADDRESS, or CONFIGURED
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bx_bool low_speed; // 1 = ls
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Bit32u scratch; // 32-bit scratch area
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int fd; // if this device accesses a file, this is the handle.
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bx_bool in_stall; // is this device in a stall state?
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Bit8u stall_once; // some devices stall on the first setup packet after powerup
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struct {
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Bit8u direction;
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Bit8u *in;
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Bit8u *out;
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Bit16u in_cnt;
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Bit16u out_cnt;
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unsigned configs; ///// this is the same as configs below??????
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struct {
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Bit8u len;
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Bit8u type;
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Bit16u usb_ver;
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Bit8u _class;
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Bit8u subclass;
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Bit8u protocol;
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Bit8u max_packet_size;
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Bit16u vendorid;
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Bit16u productid;
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Bit16u device_rel;
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Bit8u manuf_indx;
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Bit8u prod_indx;
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Bit8u serial_indx;
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Bit8u configs;
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} device_descr;
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struct {
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Bit8u len;
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Bit8u type;
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Bit16u tot_len;
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Bit8u interfaces;
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Bit8u config_val;
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Bit8u config_indx;
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Bit8u attrbs;
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Bit8u max_power;
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struct {
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Bit8u size;
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Bit8u type;
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Bit8u interface_num;
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Bit8u alternate;
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Bit8u num_endpts;
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Bit8u iclass;
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Bit8u subclass;
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Bit8u protocol;
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Bit8u str_indx;
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struct {
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Bit8u size;
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Bit8u type;
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Bit8u endpt;
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Bit8u attrib;
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Bit16u max_size;
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Bit8u interval;
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} endpts[4];
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struct {
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Bit8u size;
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Bit8u type;
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Bit16u HID_class;
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Bit8u country_code;
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Bit8u num_descriptors;
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struct {
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Bit8u type;
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Bit16u len;
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Bit8u dev_hid_descript_report[128];
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} descriptor[16];
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} dev_hid_descript;
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int lookup_cnt;
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struct KEYPAD lookup[KEYPAD_LEN];
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} Interface[4];
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} device_config[4];
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struct {
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Bit8u size;
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Bit8u type;
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Bit16u langid[3];
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} str_descriptor;
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struct {
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Bit8u size;
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Bit8u type;
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Bit8u unicode_str[64];
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} string[6];
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} function; // currently, we only support 1 function
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};
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#pragma pack(pop)
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typedef struct {
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Bit32u base_ioaddr;
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int timer_index;
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// Registers
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// Base + 0x00 Command register
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// Base + 0x02 Status register
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// Base + 0x04 Interrupt Enable register
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// Base + 0x06 Frame Number register
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// Base + 0x08 Frame Base Register (32-bit)
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// Base + 0x0C Start of Frame Modify register
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// Base + 0x0D
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// Base + 0x0E
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// Base + 0x0F
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// Base + 0x10 Eight(?) 16-bit ports (one for each port on hub)
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// Bit reps of registers above
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// Command Register
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// Bits 15-8 are reserved
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// Bit 7 = Maximum packet size
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// Bit 6 = Host Controller has been configured (set by software)
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// Bit 5 = software debug mode
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// Bit 4 = force global resume
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// Bit 3 = enter global suspend mode
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// Bit 2 = global reset
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// Bit 1 = host controller reset
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// Bit 0 = run/stop schedule
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struct {
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bx_bool max_packet_size; //(bit 7) 0 = 32 bytes, 1 = 64 bytes
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bx_bool configured; //(bit 6)
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bx_bool debug; //(bit 5)
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bx_bool resume; //(bit 4)
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bx_bool suspend; //(bit 3)
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bx_bool reset; //(bit 2)
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bx_bool host_reset; //(bit 1)
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bx_bool schedule; //(bit 0) 0 = Stop, 1 = Run
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} usb_command;
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// Status Register
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// Bits 15-6 are reserved
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// Bit 5 = Host controller halted
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// Bit 4 = Host controller process error
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// Bit 3 = PCI Bus error
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// Bit 2 = resume received
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// Bit 1 = USB error interrupt
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// Bit 0 = USB interrupt
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struct {
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bx_bool host_halted; //(bit 5)
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bx_bool host_error; //(bit 4)
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bx_bool pci_error; //(bit 3)
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bx_bool resume; //(bit 2)
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bx_bool error_interrupt; //(bit 1)
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bx_bool interrupt; //(bit 0)
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} usb_status;
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// Interrupt Enable Register
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// Bits 15-4 are reserved
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// Bit 3 = enable short packet interrupts
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// Bit 2 = enable interrupt On Complete
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// Bit 1 = enable resume
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// Bit 0 = enable timeout/crc
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struct {
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bx_bool short_packet; //(bit 3)
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bx_bool on_complete; //(bit 2)
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bx_bool resume; //(bit 1)
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bx_bool timeout_crc; //(bit 0)
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} usb_enable;
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// Frame Number Register
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// Bits 15-11 are reserved
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// Bits 10-0 Frame List Current Index/Frame Number
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struct {
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Bit16u frame_num;
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} usb_frame_num;
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// Frame List Base Address Register
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// Bits 31-12 Base
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// Bits 11-0 *must* be zeros when written to
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struct {
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Bit32u frame_base;
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} usb_frame_base;
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// Start of Frame Modify Register
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// Bit 7 reserved
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// Bits 6-0 SOF timing value (default 64)
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// SOF cycle time equals 11936+timing value
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struct {
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Bit8u sof_timing;
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} usb_sof;
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// Port Register (0-1)
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// Bits 15-13 are reserved
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// Bit 12 suspend port
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// Bit 11-10 are reserved
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// Bit 9 port in reset state
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// Bit 8 low-speed device is attached (read-only)
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// Bit 7 reserved
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// Bit 6 resume detected (read-only)
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// Bit 5 line-status D+ (read-only)
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// Bit 4 line-status D- (read-only)
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// Bit 3 port enabled/disable status has changed
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// (write 1 to this bit to clear it)
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// Bit 2 port is enabled
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// Bit 1 connect status has changed
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// (write 1 to this bit to clear it)
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// Bit 0 current connect status (read-only)
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// Can only write in WORD sizes (Read in byte sizes???)
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struct {
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// our data
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int device_num; // device number on this hub
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// bit reps of actual port
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bx_bool suspend;
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bx_bool reset;
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bx_bool low_speed;
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bx_bool resume;
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bx_bool line_dminus;
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bx_bool line_dplus;
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bx_bool able_changed;
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bx_bool enabled;
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bx_bool connect_changed;
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bx_bool status;
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} usb_port[USB_NUM_PORTS];
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Bit8u pci_conf[256];
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Bit8u devfunc;
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struct USB_DEVICE device[USB_CUR_DEVS]; // two ports per hub, 127 devices per port (max)
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int statusbar_id[2]; // IDs of the status LEDs
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} bx_usb_t;
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#pragma pack (push, 1)
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struct TD {
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Bit32u dword0;
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Bit32u dword1;
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Bit32u dword2;
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Bit32u dword3;
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Bit32u resv[4];
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};
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#pragma pack (pop)
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#define HC_HORZ 0x80
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#define HC_VERT 0x81
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struct HCSTACK {
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Bit32u next;
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Bit8u d; // if queue, denotes VERT or HORZ
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bx_bool q;
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bx_bool t;
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};
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class bx_pciusb_c : public bx_pci_usb_stub_c {
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public:
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bx_pciusb_c();
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virtual ~bx_pciusb_c();
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virtual void init(void);
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virtual void reset(unsigned);
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virtual void usb_mouse_enq(int delta_x, int delta_y, int delta_z, unsigned button_state);
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virtual void usb_mouse_enable(bx_bool enable);
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virtual bx_bool usb_key_enq(Bit8u *scan_code);
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virtual bx_bool usb_keyboard_connected();
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virtual bx_bool usb_mouse_connected();
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#if BX_SUPPORT_SAVE_RESTORE
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virtual void register_state(void);
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virtual void after_restore_state(void);
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#endif
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virtual Bit32u pci_read_handler(Bit8u address, unsigned io_len);
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virtual void pci_write_handler(Bit8u address, Bit32u value, unsigned io_len);
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static const char *usb_param_handler(bx_param_string_c *param, int set, const char *val, int maxlen);
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private:
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bx_bool busy;
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bx_usb_t hub[BX_USB_CONFDEV];
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Bit8u global_reset;
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int mouse_delayed_dx;
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int mouse_delayed_dy;
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int mouse_delayed_dz;
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unsigned button_state;
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Bit8s mouse_x;
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Bit8s mouse_y;
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Bit8s mouse_z;
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Bit8u b_state;
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Bit8u saved_key[8];
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Bit8u key_pad_packet[8];
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static void set_irq_level(bx_bool level);
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Bit8u *device_buffer;
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unsigned set_address_stk;
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Bit8u set_address[128];
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bx_bool last_connect;
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bx_bool keyboard_connected;
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bx_bool mouse_connected;
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bx_bool flash_connected;
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static void init_device(Bit8u port, char *devname);
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static void usb_set_connect_status(Bit8u port, int type, bx_bool connected);
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static void usb_timer_handler(void *);
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void usb_timer(void);
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bx_bool DoTransfer(Bit32u address, Bit32u queue_num, struct TD *);
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void dump_packet(Bit8u *data, unsigned size);
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bx_bool flash_stick(Bit8u *packet, Bit16u size, bx_bool out);
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unsigned GetDescriptor(struct USB_DEVICE *, struct REQUEST_PACKET *);
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void set_status(struct TD *td, bx_bool stalled, bx_bool data_buffer_error, bx_bool babble,
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bx_bool nak, bx_bool crc_time_out, bx_bool bitstuff_error, Bit16u act_len);
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static Bit32u read_handler(void *this_ptr, Bit32u address, unsigned io_len);
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static void write_handler(void *this_ptr, Bit32u address, Bit32u value, unsigned io_len);
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#if !BX_USE_PCIUSB_SMF
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Bit32u read(Bit32u address, unsigned io_len);
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void write(Bit32u address, Bit32u value, unsigned io_len);
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#endif
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};
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#endif
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