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Bochs/bochs/iodev/usb/usb_hid.cc
Benjamin David Lunt 7041926aac
USB emulation update 
Added examples for new options.
 - xhci: model= option
 - xhci: allow the user to select number of ports
 - usb disk: proto= option (bbb or uasp)
Added xhci primary stream support.
 (Secondary stream support is not included)
Added (experimental) usb disk protocol UASP for super- and high-speed usb disk devices.
  (high-speed uasp support is not thoroughly tested)
xhci: fixed "change event" function
scsi: fixed bug in command 0x25
scsi: added command 9E/10
2023-03-10 11:37:08 -07:00

1428 lines
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Raw Blame History

/////////////////////////////////////////////////////////////////////////
// $Id$
/////////////////////////////////////////////////////////////////////////
//
// USB HID emulation support (mouse and tablet) ported from QEMU
// USB keypad emulation based on code by Benjamin D Lunt (fys [at] fysnet [dot] net)
// USB keyboard emulation is an extension to the keypad based on specs
//
// Copyright (c) 2005 Fabrice Bellard
// Copyright (c) 2007 OpenMoko, Inc. (andrew@openedhand.com)
// Copyright (C) 2009-2023 The Bochs Project
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
// THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.
/////////////////////////////////////////////////////////////////////////
// Portions of this file contain code released under the LGPL.
//
// Copyright (C) 2004-2023 Benjamin D Lunt (fys [at] fysnet [dot] net)
//
// This library is free software; you can redistribute it and/or
// modify it under the terms of the GNU Lesser General Public
// License as published by the Free Software Foundation; either
// version 2 of the License, or (at your option) any later version.
//
// This library 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
// Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public
// License along with this library; if not, write to the Free Software
// Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
/////////////////////////////////////////////////////////////////////////
// Define BX_PLUGGABLE in files that can be compiled into plugins. For
// platforms that require a special tag on exported symbols, BX_PLUGGABLE
// is used to know when we are exporting symbols and when we are importing.
#define BX_PLUGGABLE
#include "iodev.h"
#if BX_SUPPORT_PCI && BX_SUPPORT_PCIUSB
#include "usb_common.h"
#include "usb_hid.h"
#define LOG_THIS
// USB device plugin entry point
PLUGIN_ENTRY_FOR_MODULE(usb_hid)
{
if (mode == PLUGIN_PROBE) {
return (int)PLUGTYPE_USB;
}
return 0; // Success
}
//
// Define the static class that registers the derived USB device class,
// and allocates one on request.
//
class bx_usb_hid_locator_c : public usbdev_locator_c {
public:
bx_usb_hid_locator_c(void) : usbdev_locator_c("usb_hid") {}
protected:
usb_device_c *allocate(const char *devtype) {
return (new usb_hid_device_c(devtype));
}
} bx_usb_hid_match;
/* supported HID device types */
#define USB_HID_TYPE_MOUSE 0
#define USB_HID_TYPE_TABLET 1
#define USB_HID_TYPE_KEYPAD 2
#define USB_HID_TYPE_KEYBOARD 3
/* HID IDLE time constant */
#define HID_IDLE_TIME 4000
/* HID interface requests */
#define GET_REPORT 0x01
#define GET_IDLE 0x02
#define GET_PROTOCOL 0x03
#define SET_REPORT 0x09
#define SET_IDLE 0x0A
#define SET_PROTOCOL 0x0B
/* BOOT Protocol or Report Protocol */
#define PROTOCOL_BOOT 0
#define PROTOCOL_REPORT 1
struct USBKBD {
Bit8u code;
bool modkey;
};
// If you change any of the Max Packet Size, or other fields within these
// descriptors, you must also change the d.endpoint_info[] array
// to match your changes.
////////////////////////////////////////////////
// Mouse
static const Bit8u bx_mouse_dev_descriptor[] = {
0x12, /* u8 bLength; */
0x01, /* u8 bDescriptorType; Device */
0x00, 0x01, /* u16 bcdUSB; v1.0 */
0x00, /* u8 bDeviceClass; */
0x00, /* u8 bDeviceSubClass; */
0x00, /* u8 bDeviceProtocol; [ low/full speeds only ] */
0x08, /* u8 bMaxPacketSize; 8 Bytes */
0x27, 0x06, /* u16 idVendor; */
0x01, 0x00, /* u16 idProduct; */
0x00, 0x00, /* u16 bcdDevice */
0x01, /* u8 iManufacturer; */
0x02, /* u8 iProduct; */
0x03, /* u8 iSerialNumber; */
0x01 /* u8 bNumConfigurations; */
};
static const Bit8u bx_mouse_dev_descriptor2[] = {
0x12, /* u8 bLength; */
0x01, /* u8 bDescriptorType; Device */
0x00, 0x02, /* u16 bcdUSB; v2.0 */
0x00, /* u8 bDeviceClass; */
0x00, /* u8 bDeviceSubClass; */
0x00, /* u8 bDeviceProtocol; [ low/full speeds only ] */
0x40, /* u8 bMaxPacketSize; 64 Bytes */
0x27, 0x06, /* u16 idVendor; */
0x01, 0x00, /* u16 idProduct; */
0x00, 0x00, /* u16 bcdDevice */
0x01, /* u8 iManufacturer; */
0x02, /* u8 iProduct; */
0x03, /* u8 iSerialNumber; */
0x01 /* u8 bNumConfigurations; */
};
static const Bit8u bx_mouse_hid_report_descriptor[] = {
0x05, 0x01, // Usage Page (Generic Desktop Ctrls)
0x09, 0x02, // Usage (Mouse)
0xA1, 0x01, // Collection (Application)
0x09, 0x01, // Usage (Pointer)
0xA1, 0x00, // Collection (Physical)
0x05, 0x09, // Usage Page (Button)
0x19, 0x01, // Usage Minimum (0x01)
0x29, 0x03, // Usage Maximum (0x03)
0x15, 0x00, // Logical Minimum (0)
0x25, 0x01, // Logical Maximum (1)
0x95, 0x03, // Report Count (3)
0x75, 0x01, // Report Size (1)
0x81, 0x02, // Input (Data,Var,Abs,No Wrap,Linear,Preferred State,No Null Position)
0x95, 0x01, // Report Count (1)
0x75, 0x05, // Report Size (5)
0x81, 0x01, // Input (Const,Array,Abs,No Wrap,Linear,Preferred State,No Null Position)
0x05, 0x01, // Usage Page (Generic Desktop Ctrls)
0x09, 0x30, // Usage (X)
0x09, 0x31, // Usage (Y)
0x09, 0x38, // Usage (Wheel)
0x15, 0x81, // Logical Minimum (-127)
0x25, 0x7F, // Logical Maximum (127)
0x75, 0x08, // Report Size (8)
0x95, 0x03, // Report Count (3)
0x81, 0x06, // Input (Data,Var,Rel,No Wrap,Linear,Preferred State,No Null Position)
0xC0, // End Collection
0xC0, // End Collection
};
static const Bit8u bx_mouse_config_descriptor[] = {
/* one configuration */
0x09, /* u8 bLength; */
0x02, /* u8 bDescriptorType; Configuration */
0x22, 0x00, /* u16 wTotalLength; */
0x01, /* u8 bNumInterfaces; (1) */
0x01, /* u8 bConfigurationValue; */
0x04, /* u8 iConfiguration; */
0xa0, /* u8 bmAttributes;
Bit 7: must be set,
6: Self-powered,
5: Remote wakeup,
4..0: resvd */
50, /* u8 MaxPower; */
/* one interface */
0x09, /* u8 if_bLength; */
0x04, /* u8 if_bDescriptorType; Interface */
0x00, /* u8 if_bInterfaceNumber; */
0x00, /* u8 if_bAlternateSetting; */
0x01, /* u8 if_bNumEndpoints; */
0x03, /* u8 if_bInterfaceClass; */
0x01, /* u8 if_bInterfaceSubClass; */
0x02, /* u8 if_bInterfaceProtocol; */
0x05, /* u8 if_iInterface; */
/* HID descriptor */
0x09, /* u8 bLength; */
0x21, /* u8 bDescriptorType; */
0x00, 0x01, /* u16 HID_class */
0x00, /* u8 country_code */
0x01, /* u8 num_descriptors */
0x22, /* u8 type; Report */
sizeof(bx_mouse_hid_report_descriptor), 0, /* u16 len */
/* one endpoint */
0x07, /* u8 ep_bLength; */
0x05, /* u8 ep_bDescriptorType; Endpoint */
0x81, /* u8 ep_bEndpointAddress; IN Endpoint 1 */
0x03, /* u8 ep_bmAttributes; Interrupt */
0x04, 0x00, /* u16 ep_wMaxPacketSize; */
0x0a, /* u8 ep_bInterval; (0 - 255ms -- usb 2.0 spec) */
};
static const Bit8u bx_mouse_config_descriptor2[] = {
/* one configuration */
0x09, /* u8 bLength; */
0x02, /* u8 bDescriptorType; Configuration */
0x22, 0x00, /* u16 wTotalLength; */
0x01, /* u8 bNumInterfaces; (1) */
0x01, /* u8 bConfigurationValue; */
0x04, /* u8 iConfiguration; */
0xa0, /* u8 bmAttributes;
Bit 7: must be set,
6: Self-powered,
5: Remote wakeup,
4..0: resvd */
50, /* u8 MaxPower; */
/* one interface */
0x09, /* u8 if_bLength; */
0x04, /* u8 if_bDescriptorType; Interface */
0x00, /* u8 if_bInterfaceNumber; */
0x00, /* u8 if_bAlternateSetting; */
0x01, /* u8 if_bNumEndpoints; */
0x03, /* u8 if_bInterfaceClass; */
0x01, /* u8 if_bInterfaceSubClass; */
0x02, /* u8 if_bInterfaceProtocol; */
0x05, /* u8 if_iInterface; */
/* HID descriptor */
0x09, /* u8 bLength; */
0x21, /* u8 bDescriptorType; */
0x00, 0x01, /* u16 HID_class */
0x00, /* u8 country_code */
0x01, /* u8 num_descriptors */
0x22, /* u8 type; Report */
sizeof(bx_mouse_hid_report_descriptor), 0, /* u16 len */
/* one endpoint */
0x07, /* u8 ep_bLength; */
0x05, /* u8 ep_bDescriptorType; Endpoint */
0x81, /* u8 ep_bEndpointAddress; IN Endpoint 1 */
0x03, /* u8 ep_bmAttributes; Interrupt */
0x04, 0x00, /* u16 ep_wMaxPacketSize; */
0x07, /* u8 ep_bInterval; (2 ^ (8-1) * 125 usecs = 8 ms) */
};
static const Bit8u bx_mouse_hid_descriptor[] = {
/* HID descriptor */
0x09, /* u8 bLength; */
0x21, /* u8 bDescriptorType; */
0x00, 0x01, /* u16 HID_class */
0x00, /* u8 country_code */
0x01, /* u8 num_descriptors */
0x22, /* u8 type; Report */
sizeof(bx_mouse_hid_report_descriptor), 0, /* u16 len */
};
////////////////////////////////////////////////
// tablet
static const Bit8u bx_tablet_hid_report_descriptor[] = {
0x05, 0x01, // Usage Page (Generic Desktop Ctrls)
0x09, 0x01, // Usage (Pointer)
0xA1, 0x01, // Collection (Application)
0x09, 0x01, // Usage (Pointer)
0xA1, 0x00, // Collection (Physical)
0x05, 0x09, // Usage Page (Button)
0x19, 0x01, // Usage Minimum (0x01)
0x29, 0x03, // Usage Maximum (0x03)
0x15, 0x00, // Logical Minimum (0)
0x25, 0x01, // Logical Maximum (1)
0x95, 0x03, // Report Count (3)
0x75, 0x01, // Report Size (1)
0x81, 0x02, // Input (Data,Var,Abs,No Wrap,Linear,Preferred State,No Null Position)
0x95, 0x01, // Report Count (1)
0x75, 0x05, // Report Size (5)
0x81, 0x01, // Input (Const,Array,Abs,No Wrap,Linear,Preferred State,No Null Position)
0x05, 0x01, // Usage Page (Generic Desktop Ctrls)
0x09, 0x30, // Usage (X)
0x09, 0x31, // Usage (Y)
0x15, 0x00, // Logical Minimum (0)
0x26, 0xFF, 0x7F, // Logical Maximum (32767)
0x35, 0x00, // Physical Minimum (0)
0x46, 0xFF, 0x7F, // Physical Maximum (32767)
0x75, 0x10, // Report Size (16)
0x95, 0x02, // Report Count (2)
0x81, 0x02, // Input (Data,Var,Abs,No Wrap,Linear,Preferred State,No Null Position)
0x05, 0x01, // Usage Page (Generic Desktop Ctrls)
0x09, 0x38, // Usage (Wheel)
0x15, 0x81, // Logical Minimum (-127)
0x25, 0x7F, // Logical Maximum (127)
0x35, 0x00, // Physical Minimum (0)
0x45, 0x00, // Physical Maximum (0)
0x75, 0x08, // Report Size (8)
0x95, 0x01, // Report Count (1)
0x81, 0x06, // Input (Data,Var,Rel,No Wrap,Linear,Preferred State,No Null Position)
0xC0, // End Collection
0xC0, // End Collection
};
static const Bit8u bx_tablet_config_descriptor[] = {
/* one configuration */
0x09, /* u8 bLength; */
0x02, /* u8 bDescriptorType; Configuration */
0x22, 0x00, /* u16 wTotalLength; */
0x01, /* u8 bNumInterfaces; (1) */
0x01, /* u8 bConfigurationValue; */
0x04, /* u8 iConfiguration; */
0xa0, /* u8 bmAttributes;
Bit 7: must be set,
6: Self-powered,
5: Remote wakeup,
4..0: resvd */
50, /* u8 MaxPower; */
/* one interface */
0x09, /* u8 if_bLength; */
0x04, /* u8 if_bDescriptorType; Interface */
0x00, /* u8 if_bInterfaceNumber; */
0x00, /* u8 if_bAlternateSetting; */
0x01, /* u8 if_bNumEndpoints; */
0x03, /* u8 if_bInterfaceClass; */
0x01, /* u8 if_bInterfaceSubClass; */
0x02, /* u8 if_bInterfaceProtocol; */
0x05, /* u8 if_iInterface; */
/* HID descriptor */
0x09, /* u8 bLength; */
0x21, /* u8 bDescriptorType; */
0x00, 0x01, /* u16 HID_class */
0x00, /* u8 country_code */
0x01, /* u8 num_descriptors */
0x22, /* u8 type; Report */
sizeof(bx_tablet_hid_report_descriptor), 0, /* u16 len */
/* one endpoint */
0x07, /* u8 ep_bLength; */
0x05, /* u8 ep_bDescriptorType; Endpoint */
0x81, /* u8 ep_bEndpointAddress; IN Endpoint 1 */
0x03, /* u8 ep_bmAttributes; Interrupt */
0x08, 0x00, /* u16 ep_wMaxPacketSize; */
0x0a, /* u8 ep_bInterval; (0 - 255ms -- usb 2.0 spec) */
};
static const Bit8u bx_tablet_config_descriptor2[] = {
/* one configuration */
0x09, /* u8 bLength; */
0x02, /* u8 bDescriptorType; Configuration */
0x22, 0x00, /* u16 wTotalLength; */
0x01, /* u8 bNumInterfaces; (1) */
0x01, /* u8 bConfigurationValue; */
0x04, /* u8 iConfiguration; */
0xa0, /* u8 bmAttributes;
Bit 7: must be set,
6: Self-powered,
5: Remote wakeup,
4..0: resvd */
50, /* u8 MaxPower; */
/* one interface */
0x09, /* u8 if_bLength; */
0x04, /* u8 if_bDescriptorType; Interface */
0x00, /* u8 if_bInterfaceNumber; */
0x00, /* u8 if_bAlternateSetting; */
0x01, /* u8 if_bNumEndpoints; */
0x03, /* u8 if_bInterfaceClass; */
0x01, /* u8 if_bInterfaceSubClass; */
0x02, /* u8 if_bInterfaceProtocol; */
0x05, /* u8 if_iInterface; */
/* HID descriptor */
0x09, /* u8 bLength; */
0x21, /* u8 bDescriptorType; */
0x00, 0x01, /* u16 HID_class */
0x00, /* u8 country_code */
0x01, /* u8 num_descriptors */
0x22, /* u8 type; Report */
sizeof(bx_tablet_hid_report_descriptor), 0, /* u16 len */
/* one endpoint */
0x07, /* u8 ep_bLength; */
0x05, /* u8 ep_bDescriptorType; Endpoint */
0x81, /* u8 ep_bEndpointAddress; IN Endpoint 1 */
0x03, /* u8 ep_bmAttributes; Interrupt */
0x08, 0x00, /* u16 ep_wMaxPacketSize; */
0x04, /* u8 ep_bInterval; (2 ^ (4-1) * 125 usecs = 1 ms) */
};
static const Bit8u bx_tablet_hid_descriptor[] = {
/* HID descriptor */
0x09, /* u8 bLength; */
0x21, /* u8 bDescriptorType; */
0x00, 0x01, /* u16 HID_class */
0x00, /* u8 country_code */
0x01, /* u8 num_descriptors */
0x22, /* u8 type; Report */
sizeof(bx_tablet_hid_report_descriptor), 0, /* u16 len */
};
////////////////////////////////////////////////
// keypad
static const Bit8u bx_keypad_hid_report_descriptor[] = {
0x05, 0x01, // Usage Page (Generic Desktop Ctrls)
0x09, 0x06, // Usage (Keyboard)
0xA1, 0x01, // Collection (Application)
0x05, 0x07, // Usage Page (Kbrd/Keypad)
0x19, 0xE0, // Usage Minimum (0xE0)
0x29, 0xE7, // Usage Maximum (0xE7)
0x15, 0x00, // Logical Minimum (0)
0x25, 0x01, // Logical Maximum (1)
0x75, 0x01, // Report Size (1)
0x95, 0x08, // Report Count (8)
0x81, 0x02, // Input (Data,Var,Abs,No Wrap,Linear,Preferred State,No Null Position)
0x95, 0x01, // Report Count (1)
0x75, 0x08, // Report Size (8)
0x81, 0x01, // Input (Const,Array,Abs,No Wrap,Linear,Preferred State,No Null Position)
0x95, 0x03, // Report Count (3)
0x75, 0x01, // Report Size (1)
0x05, 0x08, // Usage Page (LEDs)
0x19, 0x01, // Usage Minimum (Num Lock)
0x29, 0x03, // Usage Maximum (Scroll Lock)
0x91, 0x02, // Output (Data,Var,Abs,No Wrap,Linear,Preferred State,No Null Position,Non-volatile)
0x95, 0x05, // Report Count (5)
0x75, 0x01, // Report Size (1)
0x91, 0x01, // Output (Const,Array,Abs,No Wrap,Linear,Preferred State,No Null Position,Non-volatile)
0x95, 0x06, // Report Count (6)
0x75, 0x08, // Report Size (8)
0x15, 0x00, // Logical Minimum (0)
0x26, 0xFF, 0x00, // Logical Maximum (255)
0x05, 0x07, // Usage Page (Kbrd/Keypad)
0x19, 0x00, // Usage Minimum (0x00)
0x2A, 0xFF, 0x00, // Usage Maximum (0xFF)
0x81, 0x00, // Input (Data,Array,Abs,No Wrap,Linear,Preferred State,No Null Position)
0xC0, // End Collection
};
static const Bit8u bx_keypad_dev_descriptor[] = {
0x12, /* u8 bLength; */
0x01, /* u8 bDescriptorType; Device */
0x10, 0x01, /* u16 bcdUSB; v1.1 */
0x00, /* u8 bDeviceClass; */
0x00, /* u8 bDeviceSubClass; */
0x00, /* u8 bDeviceProtocol; [ low/full speeds only ] */
0x08, /* u8 bMaxPacketSize; 8 Bytes */
0xB4, 0x04, /* u16 idVendor; */
0x01, 0x01, /* u16 idProduct; */
0x01, 0x00, /* u16 bcdDevice */
0x01, /* u8 iManufacturer; */
0x02, /* u8 iProduct; */
0x03, /* u8 iSerialNumber; */
0x01 /* u8 bNumConfigurations; */
};
static const Bit8u bx_keypad_dev_descriptor2[] = {
0x12, /* u8 bLength; */
0x01, /* u8 bDescriptorType; Device */
0x00, 0x02, /* u16 bcdUSB; v2.0 */
0x00, /* u8 bDeviceClass; */
0x00, /* u8 bDeviceSubClass; */
0x00, /* u8 bDeviceProtocol; [ low/full speeds only ] */
0x40, /* u8 bMaxPacketSize; 64 Bytes */
0xB4, 0x04, /* u16 idVendor; */
0x01, 0x01, /* u16 idProduct; */
0x01, 0x00, /* u16 bcdDevice */
0x01, /* u8 iManufacturer; */
0x02, /* u8 iProduct; */
0x03, /* u8 iSerialNumber; */
0x01 /* u8 bNumConfigurations; */
};
static const Bit8u bx_keypad_config_descriptor[] = {
/* one configuration */
0x09, /* u8 bLength; */
0x02, /* u8 bDescriptorType; Configuration */
0x22, 0x00, /* u16 wTotalLength; */
0x01, /* u8 bNumInterfaces; (1) */
0x01, /* u8 bConfigurationValue; */
0x04, /* u8 iConfiguration; */
0xa0, /* u8 bmAttributes;
Bit 7: must be set,
6: Self-powered,
5: Remote wakeup,
4..0: resvd */
50, /* u8 MaxPower; */
/* one interface */
0x09, /* u8 if_bLength; */
0x04, /* u8 if_bDescriptorType; Interface */
0x00, /* u8 if_bInterfaceNumber; */
0x00, /* u8 if_bAlternateSetting; */
0x01, /* u8 if_bNumEndpoints; */
0x03, /* u8 if_bInterfaceClass; */
0x01, /* u8 if_bInterfaceSubClass; */
0x01, /* u8 if_bInterfaceProtocol; */
0x05, /* u8 if_iInterface; */
/* HID descriptor */
0x09, /* u8 bLength; */
0x21, /* u8 bDescriptorType; */
0x00, 0x01, /* u16 HID_class */
0x00, /* u8 country_code */
0x01, /* u8 num_descriptors */
0x22, /* u8 type; Report */
sizeof(bx_keypad_hid_report_descriptor), 0, /* u16 len */
/* one endpoint (status change endpoint) */
0x07, /* u8 ep_bLength; */
0x05, /* u8 ep_bDescriptorType; Endpoint */
0x81, /* u8 ep_bEndpointAddress; IN Endpoint 1 */
0x03, /* u8 ep_bmAttributes; Interrupt */
0x08, 0x00, /* u16 ep_wMaxPacketSize; */
0x0a, /* u8 ep_bInterval; (255ms -- usb 2.0 spec) */
};
static const Bit8u bx_keypad_config_descriptor2[] = {
/* one configuration */
0x09, /* u8 bLength; */
0x02, /* u8 bDescriptorType; Configuration */
0x22, 0x00, /* u16 wTotalLength; */
0x01, /* u8 bNumInterfaces; (1) */
0x01, /* u8 bConfigurationValue; */
0x04, /* u8 iConfiguration; */
0xa0, /* u8 bmAttributes;
Bit 7: must be set,
6: Self-powered,
5: Remote wakeup,
4..0: resvd */
50, /* u8 MaxPower; */
/* one interface */
0x09, /* u8 if_bLength; */
0x04, /* u8 if_bDescriptorType; Interface */
0x00, /* u8 if_bInterfaceNumber; */
0x00, /* u8 if_bAlternateSetting; */
0x01, /* u8 if_bNumEndpoints; */
0x03, /* u8 if_bInterfaceClass; */
0x01, /* u8 if_bInterfaceSubClass; */
0x01, /* u8 if_bInterfaceProtocol; */
0x05, /* u8 if_iInterface; */
/* HID descriptor */
0x09, /* u8 bLength; */
0x21, /* u8 bDescriptorType; */
0x00, 0x01, /* u16 HID_class */
0x00, /* u8 country_code */
0x01, /* u8 num_descriptors */
0x22, /* u8 type; Report */
sizeof(bx_keypad_hid_report_descriptor), 0, /* u16 len */
/* one endpoint (status change endpoint) */
0x07, /* u8 ep_bLength; */
0x05, /* u8 ep_bDescriptorType; Endpoint */
0x81, /* u8 ep_bEndpointAddress; IN Endpoint 1 */
0x03, /* u8 ep_bmAttributes; Interrupt */
0x08, 0x00, /* u16 ep_wMaxPacketSize; */
0x07, /* u8 ep_bInterval; (2 ^ (8-1) * 125 usecs = 8 ms) */
};
static const Bit8u bx_keypad_hid_descriptor[] = {
/* HID descriptor */
0x09, /* u8 bLength; */
0x21, /* u8 bDescriptorType; */
0x00, 0x01, /* u16 HID_class */
0x00, /* u8 country_code */
0x01, /* u8 num_descriptors */
0x22, /* u8 type; Report */
sizeof(bx_keypad_hid_report_descriptor), 0, /* u16 len */
};
struct USBKBD usbkbd_conv[BX_KEY_NBKEYS] = {
0x01, 1,
0x02, 1,
0x3a, 0, /* F1 ... F12 */
0x3b, 0,
0x3c, 0,
0x3d, 0,
0x3e, 0,
0x3f, 0,
0x40, 0,
0x41, 0,
0x42, 0,
0x43, 0,
0x44, 0,
0x45, 0,
0x10, 1,
0x20, 1,
0x39, 0,
0x53, 0,
0x04, 1,
0x40, 1,
0x04, 0, /* a ... z */
0x05, 0,
0x06, 0,
0x07, 0,
0x08, 0,
0x09, 0,
0x0a, 0,
0x0b, 0,
0x0c, 0,
0x0d, 0,
0x0e, 0,
0x0f, 0,
0x10, 0,
0x11, 0,
0x12, 0,
0x13, 0,
0x14, 0,
0x15, 0,
0x16, 0,
0x17, 0,
0x18, 0,
0x19, 0,
0x1a, 0,
0x1b, 0,
0x1c, 0,
0x1d, 0,
0x27, 0, /* 0 ... 9 */
0x1e, 0,
0x1f, 0,
0x20, 0,
0x21, 0,
0x22, 0,
0x23, 0,
0x24, 0,
0x25, 0,
0x26, 0,
0x29, 0,
0x2c, 0,
0x34, 0,
0x36, 0,
0x37, 0,
0x38, 0,
0x33, 0,
0x2e, 0,
0x2f, 0,
0x31, 0,
0x30, 0,
0x2d, 0,
0x35, 0,
0x2a, 0,
0x28, 0,
0x2b, 0,
0x64, 0,
0x46, 0,
0x47, 0,
0x48, 0,
0x49, 0,
0x4c, 0,
0x4a, 0,
0x4d, 0,
0x4b, 0,
0x4e, 0,
0x57, 0,
0x56, 0,
0x59, 0,
0x5a, 0,
0x5b, 0,
0x5c, 0,
0x5e, 0,
0x5f, 0,
0x60, 0,
0x61, 0,
0x62, 0,
0x63, 0,
0x5d, 0,
0x52, 0,
0x51, 0,
0x50, 0,
0x4f, 0,
0x58, 0,
0x55, 0,
0x54, 0,
0xe3, 0,
0xe7, 0,
0x65, 0,
0x00, 0, /* BX_KEY_ALT_SYSREQ */
0x00, 0, /* BX_KEY_CTRL_BREAK */
0x00, 0, /* BX_KEY_INT_BACK */
0x00, 0, /* BX_KEY_INT_FORWARD */
0x00, 0, /* BX_KEY_INT_STOP */
0x00, 0, /* BX_KEY_INT_MAIL */
0x00, 0, /* BX_KEY_INT_SEARCH */
0x00, 0, /* BX_KEY_INT_FAV */
0x00, 0, /* BX_KEY_INT_HOME */
0x00, 0, /* BX_KEY_MYCOMP */
0x00, 0, /* BX_KEY_CALC */
0x00, 0, /* BX_KEY_SLEEP */
0x66, 0,
0x00, 0 /* BX_KEY_WAKE */
};
usb_hid_device_c::usb_hid_device_c(const char *devname)
{
if (!strcmp(devname, "mouse")) {
d.type = USB_HID_TYPE_MOUSE;
} else if (!strcmp(devname, "tablet")) {
d.type = USB_HID_TYPE_TABLET;
} else if (!strcmp(devname, "keypad")) {
d.type = USB_HID_TYPE_KEYPAD;
} else {
d.type = USB_HID_TYPE_KEYBOARD;
}
d.minspeed = USB_SPEED_LOW;
d.maxspeed = USB_SPEED_HIGH;
d.speed = d.minspeed;
if (d.type == USB_HID_TYPE_MOUSE) {
strcpy(d.devname, "USB Mouse");
DEV_register_removable_mouse((void *) this, mouse_enq_static, mouse_enabled_changed);
} else if (d.type == USB_HID_TYPE_TABLET) {
strcpy(d.devname, "USB Tablet");
DEV_register_removable_mouse((void *) this, mouse_enq_static, mouse_enabled_changed);
bx_gui->set_mouse_mode_absxy(1);
} else if ((d.type == USB_HID_TYPE_KEYPAD) || (d.type == USB_HID_TYPE_KEYBOARD)) {
Bit8u led_mask;
if (d.type == USB_HID_TYPE_KEYPAD) {
strcpy(d.devname, "USB/PS2 Keypad");
} else {
strcpy(d.devname, "USB/PS2 Keyboard");
}
if (d.type == USB_HID_TYPE_KEYPAD) {
led_mask = BX_KBD_LED_MASK_NUM;
} else {
led_mask = BX_KBD_LED_MASK_ALL;
}
DEV_register_removable_keyboard((void *) this, gen_scancode_static,
kbd_get_elements_static, led_mask);
}
timer_index = DEV_register_timer(this, hid_timer_handler, HID_IDLE_TIME, 0, 0,
"HID idle timer");
d.vendor_desc = "BOCHS";
d.product_desc = d.devname;
d.serial_num = "1";
memset((void *) &s, 0, sizeof(s));
// HID 1.11, section 7.2.6, page 54(64):
// "When initialized, all devices default to report protocol."
s.boot_protocol = PROTOCOL_REPORT;
put("usb_hid", "USBHID");
}
usb_hid_device_c::~usb_hid_device_c(void)
{
if ((d.type == USB_HID_TYPE_MOUSE) ||
(d.type == USB_HID_TYPE_TABLET)) {
bx_gui->set_mouse_mode_absxy(0);
DEV_unregister_removable_mouse((void *) this);
} else if ((d.type == USB_HID_TYPE_KEYPAD) ||
(d.type == USB_HID_TYPE_KEYBOARD)) {
DEV_unregister_removable_keyboard((void *) this);
}
bx_pc_system.unregisterTimer(timer_index);
}
bool usb_hid_device_c::init()
{
/* If you wish to set DEBUG=report in the code, instead of
* in the configuration, simply uncomment this line. I use
* it when I am working on this emulation.
*/
//LOG_THIS setonoff(LOGLEV_DEBUG, ACT_REPORT);
if ((d.type == USB_HID_TYPE_MOUSE) ||
(d.type == USB_HID_TYPE_TABLET)) {
if (d.speed == USB_SPEED_HIGH) {
d.dev_descriptor = bx_mouse_dev_descriptor2;
d.device_desc_size = sizeof(bx_mouse_dev_descriptor2);
d.endpoint_info[USB_CONTROL_EP].max_packet_size = 64; // Control ep0
d.endpoint_info[USB_CONTROL_EP].max_burst_size = 0;
d.endpoint_info[1].max_packet_size = 4; // In ep1
d.endpoint_info[1].max_burst_size = 0;
} else {
d.dev_descriptor = bx_mouse_dev_descriptor;
d.device_desc_size = sizeof(bx_mouse_dev_descriptor);
d.endpoint_info[USB_CONTROL_EP].max_packet_size = 8; // Control ep0
d.endpoint_info[USB_CONTROL_EP].max_burst_size = 0;
d.endpoint_info[1].max_packet_size = 4; // In ep1
d.endpoint_info[1].max_burst_size = 0;
}
if (d.type == USB_HID_TYPE_MOUSE) {
if (d.speed == USB_SPEED_HIGH) {
d.config_descriptor = bx_mouse_config_descriptor2;
d.config_desc_size = sizeof(bx_mouse_config_descriptor2);
} else {
d.config_descriptor = bx_mouse_config_descriptor;
d.config_desc_size = sizeof(bx_mouse_config_descriptor);
}
} else {
if (d.speed == USB_SPEED_HIGH) {
d.config_descriptor = bx_tablet_config_descriptor2;
d.config_desc_size = sizeof(bx_tablet_config_descriptor2);
} else {
d.config_descriptor = bx_tablet_config_descriptor;
d.config_desc_size = sizeof(bx_tablet_config_descriptor);
}
}
} else {
if (d.speed == USB_SPEED_HIGH) {
d.dev_descriptor = bx_keypad_dev_descriptor2;
d.device_desc_size = sizeof(bx_keypad_dev_descriptor2);
d.config_descriptor = bx_keypad_config_descriptor2;
d.config_desc_size = sizeof(bx_keypad_config_descriptor2);
d.endpoint_info[USB_CONTROL_EP].max_packet_size = 64; // Control ep0
d.endpoint_info[USB_CONTROL_EP].max_burst_size = 0;
d.endpoint_info[1].max_packet_size = 4; // In ep1
d.endpoint_info[1].max_burst_size = 0;
} else {
d.dev_descriptor = bx_keypad_dev_descriptor;
d.device_desc_size = sizeof(bx_keypad_dev_descriptor);
d.config_descriptor = bx_keypad_config_descriptor;
d.config_desc_size = sizeof(bx_keypad_config_descriptor);
d.endpoint_info[USB_CONTROL_EP].max_packet_size = 8; // Control ep0
d.endpoint_info[USB_CONTROL_EP].max_burst_size = 0;
d.endpoint_info[1].max_packet_size = 8; // In ep1
d.endpoint_info[1].max_burst_size = 0;
}
}
d.connected = 1;
d.alt_iface_max = 0;
return 1;
}
const char *usb_hid_device_c::get_info()
{
return d.devname;
}
void usb_hid_device_c::register_state_specific(bx_list_c *parent)
{
bx_list_c *list = new bx_list_c(parent, "s", "USB HID Device State");
BXRS_PARAM_BOOL(list, has_events, s.has_events);
BXRS_HEX_PARAM_FIELD(list, idle, s.idle);
BXRS_PARAM_BOOL(list, report_protocol, s.boot_protocol);
BXRS_DEC_PARAM_FIELD(list, mouse_delayed_dx, s.mouse_delayed_dx);
BXRS_DEC_PARAM_FIELD(list, mouse_delayed_dy, s.mouse_delayed_dy);
BXRS_DEC_PARAM_FIELD(list, mouse_x, s.mouse_x);
BXRS_DEC_PARAM_FIELD(list, mouse_y, s.mouse_y);
BXRS_DEC_PARAM_FIELD(list, mouse_z, s.mouse_z);
BXRS_HEX_PARAM_FIELD(list, b_state, s.b_state);
BXRS_DEC_PARAM_FIELD(list, mouse_event_count, s.mouse_event_count);
new bx_shadow_data_c(list, "mouse_event_buf", (Bit8u*)s.mouse_event_buf, 6 * BX_KBD_ELEMENTS, 1);
if ((d.type == USB_HID_TYPE_KEYPAD) || (d.type == USB_HID_TYPE_KEYBOARD)) {
new bx_shadow_data_c(list, "kbd_packet", s.kbd_packet, 8, 1);
BXRS_HEX_PARAM_FIELD(list, indicators, s.indicators);
BXRS_DEC_PARAM_FIELD(list, kbd_event_count, s.kbd_event_count);
bx_list_c *evbuf = new bx_list_c(list, "kbd_event_buf", "");
char pname[16];
for (Bit8u i = 0; i < BX_KBD_ELEMENTS; i++) {
sprintf(pname, "%u", i);
new bx_shadow_num_c(evbuf, pname, &s.kbd_event_buf[i], BASE_HEX);
}
}
}
void usb_hid_device_c::handle_reset()
{
memset((void *) &s, 0, sizeof(s));
BX_DEBUG(("Reset"));
// HID 1.11, section 7.2.6, page 54(64):
// "When initialized, all devices default to report protocol."
s.boot_protocol = PROTOCOL_REPORT;
}
int usb_hid_device_c::handle_control(int request, int value, int index, int length, Bit8u *data)
{
int ret;
Bit8u modchange;
// let the common handler try to handle it first
ret = handle_control_common(request, value, index, length, data);
if (ret >= 0) {
return ret;
}
ret = 0;
switch(request) {
case DeviceOutRequest | USB_REQ_CLEAR_FEATURE:
BX_DEBUG(("HID: DeviceRequest | CLEAR_FEATURE:"));
goto fail;
break;
case DeviceOutRequest | USB_REQ_SET_FEATURE:
BX_DEBUG(("HID: DeviceRequest | SET_FEATURE:"));
goto fail;
break;
case DeviceRequest | USB_REQ_GET_DESCRIPTOR:
BX_DEBUG(("HID: DeviceRequest | USB_REQ_GET_DESCRIPTOR:"));
switch(value >> 8) {
case USB_DT_STRING:
switch(value & 0xff) {
case 4:
ret = set_usb_string(data, "HID Mouse");
break;
case 5:
ret = set_usb_string(data, "Endpoint1 Interrupt Pipe");
break;
default:
BX_ERROR(("USB HID handle_control: unknown string descriptor 0x%02x", value & 0xff));
goto fail;
}
break;
default:
BX_ERROR(("USB HID handle_control: unknown descriptor type 0x%02x", value >> 8));
goto fail;
}
break;
/* hid specific requests */
case InterfaceRequest | USB_REQ_GET_DESCRIPTOR:
BX_DEBUG(("HID: InterfaceRequest | USB_REQ_GET_DESCRIPTOR:"));
switch(value >> 8) {
case 0x21: // HID Descriptor
if ((value & 0xFF) != 0) {
BX_ERROR(("USB_REQ_GET_DESCRIPTOR: The Descriptor Index must be zero for this request."));
}
if (d.type == USB_HID_TYPE_MOUSE) {
memcpy(data, bx_mouse_hid_descriptor,
sizeof(bx_mouse_hid_descriptor));
ret = sizeof(bx_mouse_hid_descriptor);
} else if (d.type == USB_HID_TYPE_TABLET) {
memcpy(data, bx_tablet_hid_descriptor,
sizeof(bx_tablet_hid_descriptor));
ret = sizeof(bx_tablet_hid_descriptor);
} else if ((d.type == USB_HID_TYPE_KEYPAD) ||
(d.type == USB_HID_TYPE_KEYBOARD)) {
memcpy(data, bx_keypad_hid_descriptor,
sizeof(bx_keypad_hid_descriptor));
ret = sizeof(bx_keypad_hid_descriptor);
} else {
goto fail;
}
break;
case 0x22: // HID Report Descriptor
if ((value & 0xFF) != 0) {
BX_ERROR(("USB HID handle_control: The Descriptor Index must be zero for this request."));
}
if (d.type == USB_HID_TYPE_MOUSE) {
memcpy(data, bx_mouse_hid_report_descriptor,
sizeof(bx_mouse_hid_report_descriptor));
ret = sizeof(bx_mouse_hid_report_descriptor);
} else if (d.type == USB_HID_TYPE_TABLET) {
memcpy(data, bx_tablet_hid_report_descriptor,
sizeof(bx_tablet_hid_report_descriptor));
ret = sizeof(bx_tablet_hid_report_descriptor);
} else if ((d.type == USB_HID_TYPE_KEYPAD) ||
(d.type == USB_HID_TYPE_KEYBOARD)) {
memcpy(data, bx_keypad_hid_report_descriptor,
sizeof(bx_keypad_hid_report_descriptor));
ret = sizeof(bx_keypad_hid_report_descriptor);
} else {
goto fail;
}
break;
case 0x23: // HID Physical Descriptor
BX_ERROR(("USB HID handle_control: Host requested the HID Physical Descriptor"));
goto fail;
default: // 0x24 -> 0x2F
BX_ERROR(("USB HID handle_control: unknown HID descriptor 0x%02x", value >> 8));
goto fail;
}
break;
case EndpointOutRequest | USB_REQ_CLEAR_FEATURE:
BX_DEBUG(("HID: CLEAR_FEATURE:"));
if ((value == 0) && (index != 0x81)) { /* clear EP halt */
goto fail;
}
break;
case InterfaceInClassRequest | GET_REPORT:
BX_DEBUG(("HID: GET_REPORT:"));
if ((d.type == USB_HID_TYPE_MOUSE) ||
(d.type == USB_HID_TYPE_TABLET)) {
ret = mouse_poll(data, length, 1);
} else if ((d.type == USB_HID_TYPE_KEYPAD) ||
(d.type == USB_HID_TYPE_KEYBOARD)) {
ret = keyboard_poll(data, length, 1);
} else {
goto fail;
}
break;
case InterfaceOutClassRequest | SET_REPORT:
BX_DEBUG(("HID: SET_REPORT:"));
if (((d.type == USB_HID_TYPE_KEYPAD) ||
(d.type == USB_HID_TYPE_KEYBOARD)) && (value == 0x0200)) { // 0x02 = Report Type: Output, 0x00 = ID
modchange = (data[0] ^ s.indicators);
if (modchange != 0) {
if (modchange & 0x01) {
DEV_kbd_set_indicator(1, BX_KBD_LED_NUM, data[0] & 0x01);
BX_DEBUG(("NUM_LOCK %s", (data[0] & 0x01) ? "on" : "off"));
} else if (d.type == USB_HID_TYPE_KEYBOARD) {
if (modchange & 0x02) {
DEV_kbd_set_indicator(1, BX_KBD_LED_CAPS, data[0] & 0x02);
BX_DEBUG(("CAPS_LOCK %s", (data[0] & 0x02) ? "on" : "off"));
} else if (modchange & 0x04) {
DEV_kbd_set_indicator(1, BX_KBD_LED_SCRL, data[0] & 0x04);
BX_DEBUG(("SCRL_LOCK %s", (data[0] & 0x04) ? "on" : "off"));
}
}
s.indicators = data[0];
}
ret = 0;
} else {
goto fail;
}
break;
case InterfaceInClassRequest | GET_IDLE:
BX_DEBUG(("HID: GET_IDLE:"));
// The wLength field should be 1 for this request
if (length != 1) {
BX_ERROR(("USB HID handle_control: The wLength field should be 1 for this request."));
}
data[0] = s.idle;
ret = 1;
break;
case InterfaceOutClassRequest | SET_IDLE:
BX_DEBUG(("HID: SET_IDLE:"));
// The wLength field should be 0 for this request
if (length != 0) {
BX_ERROR(("USB HID handle_control: The wLength field should be 0 for this request."));
}
s.idle = (value >> 8);
start_idle_timer();
ret = 0;
break;
case InterfaceOutClassRequest | SET_PROTOCOL:
BX_DEBUG(("HID: SET_PROTOCOL:"));
// The wLength field should be 0 for this request
if (length != 0) {
BX_ERROR(("HID SET_PROTOCOL: The wLength field should be 0 for this request."));
}
if ((value != 0) && (value != 1)) {
BX_ERROR(("HID SET_PROTOCOL: The wValue field must be 0 or 1 for this request."));
}
if (value == 0) {
BX_DEBUG(("HID SET_PROTOCOL: SET_PROTOCOL: Boot Protocol"));
s.boot_protocol = PROTOCOL_BOOT;
ret = 0;
} else if (value == 1) {
BX_DEBUG(("HID SET_PROTOCOL: SET_PROTOCOL: Report Protocol"));
s.boot_protocol = PROTOCOL_REPORT;
ret = 0;
} else
goto fail;
break;
case InterfaceInClassRequest | GET_PROTOCOL:
BX_DEBUG(("HID: GET_PROTOCOL:"));
// The wLength field should be 1 for this request
if (length != 1) {
BX_ERROR(("HID GET_PROTOCOL: The wLength field should be 1 for this request."));
}
data[0] = (s.boot_protocol == PROTOCOL_BOOT) ? 0 : 1;
ret = 1;
break;
default:
BX_ERROR(("USB HID handle_control: unknown request 0x%04x", request));
fail:
d.stall = 1;
ret = USB_RET_STALL;
break;
}
return ret;
}
int usb_hid_device_c::handle_data(USBPacket *p)
{
int ret = 0;
// check that the length is <= the max packet size of the device
if (p->len > get_mps(p->devep)) {
BX_DEBUG(("EP%d transfer length (%d) is greater than Max Packet Size (%d).", p->devep, p->len, get_mps(p->devep)));
}
switch(p->pid) {
case USB_TOKEN_IN:
if (p->devep == 1) {
if ((d.type == USB_HID_TYPE_MOUSE) ||
(d.type == USB_HID_TYPE_TABLET)) {
ret = mouse_poll(p->data, p->len, 0);
} else if ((d.type == USB_HID_TYPE_KEYPAD) ||
(d.type == USB_HID_TYPE_KEYBOARD)) {
ret = keyboard_poll(p->data, p->len, 0);
} else {
goto fail;
}
} else {
goto fail;
}
break;
case USB_TOKEN_OUT:
BX_ERROR(("USB HID handle_data: unexpected pid TOKEN_OUT"));
default:
fail:
d.stall = 1;
ret = USB_RET_STALL;
break;
}
return ret;
}
int usb_hid_device_c::mouse_poll(Bit8u *buf, int len, bool force)
{
int l = USB_RET_NAK;
if (d.type == USB_HID_TYPE_MOUSE) {
if (!s.has_events) {
// if there's no new movement, handle delayed one
mouse_enq(0, 0, s.mouse_z, s.b_state, 0);
}
if (s.has_events || force) {
if (s.mouse_event_count > 0) {
l = get_mouse_packet(buf, len);
} else {
l = create_mouse_packet(buf, len);
}
s.has_events = (s.mouse_event_count > 0);
start_idle_timer();
}
} else if (d.type == USB_HID_TYPE_TABLET) {
if (s.has_events || force) {
if (s.mouse_event_count > 0) {
l = get_mouse_packet(buf, len);
} else {
l = create_mouse_packet(buf, len);
}
s.has_events = (s.mouse_event_count > 0);
start_idle_timer();
}
}
return l;
}
int usb_hid_device_c::create_mouse_packet(Bit8u *buf, int len)
{
int l = 0;
if (d.type == USB_HID_TYPE_TABLET) {
buf[0] = (Bit8u) s.b_state;
buf[1] = (Bit8u)(s.mouse_x & 0xff);
buf[2] = (Bit8u)(s.mouse_x >> 8);
buf[3] = (Bit8u)(s.mouse_y & 0xff);
buf[4] = (Bit8u)(s.mouse_y >> 8);
buf[5] = (Bit8s) s.mouse_z;
l = 6;
} else {
// The HID Boot Protocol report is only three bytes long
if (s.boot_protocol == PROTOCOL_BOOT) {
buf[0] = (Bit8u) s.b_state;
buf[1] = (Bit8s) s.mouse_x;
buf[2] = (Bit8s) s.mouse_y;
s.mouse_x = 0;
s.mouse_y = 0;
l = 3;
// our HID report includes the first three Boot Protocol bytes,
// followed by the z corrd if a wheel mouse is present
} else { // PROTOCOL_REPORT
buf[0] = (Bit8u) s.b_state;
buf[1] = (Bit8s) s.mouse_x;
buf[2] = (Bit8s) s.mouse_y;
s.mouse_x = 0;
s.mouse_y = 0;
if (len >= 4) {
buf[3] = (Bit8s) s.mouse_z; // if wheel mouse
s.mouse_z = 0;
} else
buf[3] = 0;
l = 4;
}
}
return l;
}
int usb_hid_device_c::get_mouse_packet(Bit8u *buf, int len)
{
int l = USB_RET_NAK;
if (s.mouse_event_count > 0) {
if (d.type == USB_HID_TYPE_TABLET) {
l = 6;
} else if (len >= 4) {
l = 4;
} else {
l = 3;
}
memcpy(buf, s.mouse_event_buf[0], l);
if (--s.mouse_event_count > 0) {
memmove(s.mouse_event_buf[0], s.mouse_event_buf[1],
s.mouse_event_count * 6);
}
}
return l;
}
void usb_hid_device_c::mouse_enabled_changed(void *dev, bool enabled)
{
if (enabled && (dev != NULL)) {
((usb_hid_device_c *) dev)->handle_reset();
}
}
void usb_hid_device_c::mouse_enq_static(void *dev, int delta_x, int delta_y, int delta_z, unsigned button_state, bool absxy)
{
if (dev != NULL) {
((usb_hid_device_c *) dev)->mouse_enq(delta_x, delta_y, delta_z, button_state, absxy);
}
}
void usb_hid_device_c::mouse_enq(int delta_x, int delta_y, int delta_z, unsigned button_state, bool absxy)
{
Bit16s prev_x, prev_y;
if (d.type == USB_HID_TYPE_MOUSE) {
// scale down the motion
if ((delta_x < -1) || (delta_x > 1))
delta_x /= 2;
if ((delta_y < -1) || (delta_y > 1))
delta_y /= 2;
if (delta_x > 127) delta_x = 127;
if (delta_y > 127) delta_y = 127;
if (delta_x < -128) delta_x = -128;
if (delta_y < -128) delta_y = -128;
s.mouse_delayed_dx += delta_x;
s.mouse_delayed_dy -= delta_y;
if (s.mouse_delayed_dx > 127) {
delta_x = 127;
s.mouse_delayed_dx -= 127;
} else if (s.mouse_delayed_dx < -128) {
delta_x = -128;
s.mouse_delayed_dx += 128;
} else {
delta_x = s.mouse_delayed_dx;
s.mouse_delayed_dx = 0;
}
if (s.mouse_delayed_dy > 127) {
delta_y = 127;
s.mouse_delayed_dy -= 127;
} else if (s.mouse_delayed_dy < -128) {
delta_y = -128;
s.mouse_delayed_dy += 128;
} else {
delta_y = s.mouse_delayed_dy;
s.mouse_delayed_dy = 0;
}
s.mouse_x = (Bit8s) delta_x;
s.mouse_y = (Bit8s) delta_y;
s.mouse_z = (Bit8s) delta_z;
if ((s.mouse_x != 0) || (s.mouse_y != 0) || (s.mouse_z != 0) || (button_state != s.b_state)) {
s.b_state = (Bit8u) button_state;
if (s.mouse_event_count < BX_KBD_ELEMENTS) {
create_mouse_packet(s.mouse_event_buf[s.mouse_event_count++], 4);
}
s.has_events = 1;
}
} else if (d.type == USB_HID_TYPE_TABLET) {
prev_x = s.mouse_x;
prev_y = s.mouse_y;
if (absxy) {
s.mouse_x = delta_x;
s.mouse_y = delta_y;
} else {
s.mouse_x += delta_x;
s.mouse_y -= delta_y;
}
if (s.mouse_x < 0)
s.mouse_x = 0;
if (s.mouse_y < 0)
s.mouse_y = 0;
if ((s.mouse_x != prev_x) || (s.mouse_y != prev_y) || (delta_z != s.mouse_z) ||
(button_state != s.b_state)) {
if (((button_state ^ s.b_state) != 0) || (delta_z != s.mouse_z)) {
s.mouse_z = (Bit8s) delta_z;
s.b_state = (Bit8u) button_state;
if (s.mouse_event_count < BX_KBD_ELEMENTS) {
create_mouse_packet(s.mouse_event_buf[s.mouse_event_count++], 6);
}
}
s.has_events = 1;
}
}
}
int usb_hid_device_c::keyboard_poll(Bit8u *buf, int len, bool force)
{
int l = USB_RET_NAK;
if ((d.type == USB_HID_TYPE_KEYPAD) ||
(d.type == USB_HID_TYPE_KEYBOARD)) {
if (s.has_events || force) {
memcpy(buf, s.kbd_packet, len);
l = 8;
s.has_events = 0;
if (s.kbd_event_count > 0) {
gen_scancode(s.kbd_event_buf[0]);
s.kbd_event_count--;
for (Bit8u i = 0; i < s.kbd_event_count; i++) {
s.kbd_event_buf[i] = s.kbd_event_buf[i + 1];
}
}
start_idle_timer();
}
}
return l;
}
bool usb_hid_device_c::gen_scancode_static(void *dev, Bit32u key)
{
if (dev != NULL) {
return ((usb_hid_device_c *) dev)->gen_scancode(key);
} else {
return 0;
}
}
bool usb_hid_device_c::gen_scancode(Bit32u key)
{
bool modkey, released = (key & BX_KEY_RELEASED) != 0;
Bit8u code;
code = usbkbd_conv[key & ~BX_KEY_RELEASED].code;
modkey = usbkbd_conv[key & ~BX_KEY_RELEASED].modkey;
if (d.type == USB_HID_TYPE_KEYPAD) {
if ((code < 0x53) || (code > 0x63)) {
return 0;
}
} else if (code == 0) {
return 1;
}
if (s.has_events) {
if (s.kbd_event_count < BX_KBD_ELEMENTS) {
s.kbd_event_buf[s.kbd_event_count++] = key;
}
return 1;
}
if (modkey) {
if (released) {
s.kbd_packet[0] &= ~code;
} else {
s.kbd_packet[0] |= code;
}
} else {
if (released) {
if (code == s.kbd_packet[2]) {
s.kbd_packet[2] = 0;
s.has_events = 1;
}
} else {
s.kbd_packet[2] = code;
s.has_events = 1;
}
}
return 1;
}
Bit8u usb_hid_device_c::kbd_get_elements_static(void *dev)
{
if (dev != NULL) {
return ((usb_hid_device_c *) dev)->kbd_get_elements();
} else {
return 0;
}
}
Bit8u usb_hid_device_c::kbd_get_elements()
{
return s.kbd_event_count;
}
void usb_hid_device_c::start_idle_timer()
{
if (s.idle > 0) {
bx_pc_system.activate_timer(timer_index, HID_IDLE_TIME * s.idle, 0);
} else {
bx_pc_system.deactivate_timer(timer_index);
}
}
void usb_hid_device_c::hid_timer_handler(void *this_ptr)
{
if (this_ptr != NULL) {
usb_hid_device_c *class_ptr = (usb_hid_device_c *) this_ptr;
class_ptr->hid_idle_timer();
}
}
void usb_hid_device_c::hid_idle_timer()
{
s.has_events = 1;
}
#endif // BX_SUPPORT_PCI && BX_SUPPORT_PCIUSB
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