root / hw / usb-hid.c @ 87ecb68b
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/*
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* QEMU USB HID devices
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*
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* Copyright (c) 2005 Fabrice Bellard
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* Copyright (c) 2007 OpenMoko, Inc. (andrew@openedhand.com)
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#include "hw.h" |
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#include "console.h" |
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#include "usb.h" |
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/* HID interface requests */
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#define GET_REPORT 0xa101 |
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#define GET_IDLE 0xa102 |
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#define GET_PROTOCOL 0xa103 |
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#define SET_REPORT 0x2109 |
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#define SET_IDLE 0x210a |
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#define SET_PROTOCOL 0x210b |
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|
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/* HID descriptor types */
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#define USB_DT_HID 0x21 |
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#define USB_DT_REPORT 0x22 |
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#define USB_DT_PHY 0x23 |
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|
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#define USB_MOUSE 1 |
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#define USB_TABLET 2 |
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#define USB_KEYBOARD 3 |
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typedef struct USBMouseState { |
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int dx, dy, dz, buttons_state;
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int x, y;
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int mouse_grabbed;
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QEMUPutMouseEntry *eh_entry; |
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} USBMouseState; |
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|
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typedef struct USBKeyboardState { |
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uint16_t modifiers; |
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uint8_t leds; |
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uint8_t key[16];
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int keys;
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} USBKeyboardState; |
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typedef struct USBHIDState { |
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USBDevice dev; |
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union {
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USBMouseState ptr; |
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USBKeyboardState kbd; |
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}; |
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int kind;
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int protocol;
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int idle;
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int changed;
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} USBHIDState; |
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/* mostly the same values as the Bochs USB Mouse device */
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static const uint8_t qemu_mouse_dev_descriptor[] = { |
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0x12, /* u8 bLength; */ |
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0x01, /* u8 bDescriptorType; Device */ |
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0x00, 0x01, /* u16 bcdUSB; v1.0 */ |
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0x00, /* u8 bDeviceClass; */ |
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0x00, /* u8 bDeviceSubClass; */ |
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0x00, /* u8 bDeviceProtocol; [ low/full speeds only ] */ |
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0x08, /* u8 bMaxPacketSize0; 8 Bytes */ |
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|
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0x27, 0x06, /* u16 idVendor; */ |
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0x01, 0x00, /* u16 idProduct; */ |
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0x00, 0x00, /* u16 bcdDevice */ |
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0x03, /* u8 iManufacturer; */ |
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0x02, /* u8 iProduct; */ |
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0x01, /* u8 iSerialNumber; */ |
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0x01 /* u8 bNumConfigurations; */ |
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}; |
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static const uint8_t qemu_mouse_config_descriptor[] = { |
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/* one configuration */
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0x09, /* u8 bLength; */ |
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0x02, /* u8 bDescriptorType; Configuration */ |
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0x22, 0x00, /* u16 wTotalLength; */ |
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0x01, /* u8 bNumInterfaces; (1) */ |
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0x01, /* u8 bConfigurationValue; */ |
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0x04, /* u8 iConfiguration; */ |
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0xa0, /* u8 bmAttributes; |
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Bit 7: must be set,
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6: Self-powered,
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5: Remote wakeup,
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4..0: resvd */
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50, /* u8 MaxPower; */ |
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|
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/* USB 1.1:
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* USB 2.0, single TT organization (mandatory):
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* one interface, protocol 0
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*
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* USB 2.0, multiple TT organization (optional):
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* two interfaces, protocols 1 (like single TT)
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* and 2 (multiple TT mode) ... config is
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* sometimes settable
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* NOT IMPLEMENTED
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*/
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/* one interface */
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0x09, /* u8 if_bLength; */ |
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0x04, /* u8 if_bDescriptorType; Interface */ |
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0x00, /* u8 if_bInterfaceNumber; */ |
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0x00, /* u8 if_bAlternateSetting; */ |
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0x01, /* u8 if_bNumEndpoints; */ |
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0x03, /* u8 if_bInterfaceClass; */ |
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0x01, /* u8 if_bInterfaceSubClass; */ |
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0x02, /* u8 if_bInterfaceProtocol; [usb1.1 or single tt] */ |
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0x07, /* u8 if_iInterface; */ |
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/* HID descriptor */
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0x09, /* u8 bLength; */ |
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0x21, /* u8 bDescriptorType; */ |
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0x01, 0x00, /* u16 HID_class */ |
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0x00, /* u8 country_code */ |
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0x01, /* u8 num_descriptors */ |
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0x22, /* u8 type; Report */ |
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50, 0, /* u16 len */ |
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/* one endpoint (status change endpoint) */
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0x07, /* u8 ep_bLength; */ |
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0x05, /* u8 ep_bDescriptorType; Endpoint */ |
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0x81, /* u8 ep_bEndpointAddress; IN Endpoint 1 */ |
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0x03, /* u8 ep_bmAttributes; Interrupt */ |
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0x03, 0x00, /* u16 ep_wMaxPacketSize; */ |
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0x0a, /* u8 ep_bInterval; (255ms -- usb 2.0 spec) */ |
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}; |
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static const uint8_t qemu_tablet_config_descriptor[] = { |
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/* one configuration */
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0x09, /* u8 bLength; */ |
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0x02, /* u8 bDescriptorType; Configuration */ |
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0x22, 0x00, /* u16 wTotalLength; */ |
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0x01, /* u8 bNumInterfaces; (1) */ |
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0x01, /* u8 bConfigurationValue; */ |
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0x05, /* u8 iConfiguration; */ |
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0xa0, /* u8 bmAttributes; |
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Bit 7: must be set,
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6: Self-powered,
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5: Remote wakeup,
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4..0: resvd */
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50, /* u8 MaxPower; */ |
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/* USB 1.1:
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* USB 2.0, single TT organization (mandatory):
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* one interface, protocol 0
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*
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* USB 2.0, multiple TT organization (optional):
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* two interfaces, protocols 1 (like single TT)
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* and 2 (multiple TT mode) ... config is
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* sometimes settable
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* NOT IMPLEMENTED
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*/
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/* one interface */
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0x09, /* u8 if_bLength; */ |
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0x04, /* u8 if_bDescriptorType; Interface */ |
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0x00, /* u8 if_bInterfaceNumber; */ |
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0x00, /* u8 if_bAlternateSetting; */ |
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0x01, /* u8 if_bNumEndpoints; */ |
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0x03, /* u8 if_bInterfaceClass; */ |
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0x01, /* u8 if_bInterfaceSubClass; */ |
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0x02, /* u8 if_bInterfaceProtocol; [usb1.1 or single tt] */ |
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0x07, /* u8 if_iInterface; */ |
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/* HID descriptor */
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0x09, /* u8 bLength; */ |
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0x21, /* u8 bDescriptorType; */ |
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0x01, 0x00, /* u16 HID_class */ |
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0x00, /* u8 country_code */ |
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0x01, /* u8 num_descriptors */ |
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0x22, /* u8 type; Report */ |
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74, 0, /* u16 len */ |
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/* one endpoint (status change endpoint) */
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0x07, /* u8 ep_bLength; */ |
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0x05, /* u8 ep_bDescriptorType; Endpoint */ |
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0x81, /* u8 ep_bEndpointAddress; IN Endpoint 1 */ |
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0x03, /* u8 ep_bmAttributes; Interrupt */ |
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0x08, 0x00, /* u16 ep_wMaxPacketSize; */ |
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0x0a, /* u8 ep_bInterval; (255ms -- usb 2.0 spec) */ |
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}; |
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static const uint8_t qemu_keyboard_config_descriptor[] = { |
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/* one configuration */
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0x09, /* u8 bLength; */ |
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USB_DT_CONFIG, /* u8 bDescriptorType; Configuration */
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0x22, 0x00, /* u16 wTotalLength; */ |
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0x01, /* u8 bNumInterfaces; (1) */ |
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0x01, /* u8 bConfigurationValue; */ |
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0x06, /* u8 iConfiguration; */ |
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0xa0, /* u8 bmAttributes; |
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Bit 7: must be set,
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6: Self-powered,
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5: Remote wakeup,
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4..0: resvd */
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0x32, /* u8 MaxPower; */ |
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/* USB 1.1:
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* USB 2.0, single TT organization (mandatory):
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* one interface, protocol 0
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*
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* USB 2.0, multiple TT organization (optional):
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* two interfaces, protocols 1 (like single TT)
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* and 2 (multiple TT mode) ... config is
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* sometimes settable
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* NOT IMPLEMENTED
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*/
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/* one interface */
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0x09, /* u8 if_bLength; */ |
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USB_DT_INTERFACE, /* u8 if_bDescriptorType; Interface */
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0x00, /* u8 if_bInterfaceNumber; */ |
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0x00, /* u8 if_bAlternateSetting; */ |
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0x01, /* u8 if_bNumEndpoints; */ |
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0x03, /* u8 if_bInterfaceClass; HID */ |
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0x01, /* u8 if_bInterfaceSubClass; Boot */ |
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0x01, /* u8 if_bInterfaceProtocol; Keyboard */ |
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0x07, /* u8 if_iInterface; */ |
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|
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/* HID descriptor */
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0x09, /* u8 bLength; */ |
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USB_DT_HID, /* u8 bDescriptorType; */
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0x11, 0x01, /* u16 HID_class */ |
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0x00, /* u8 country_code */ |
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0x01, /* u8 num_descriptors */ |
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USB_DT_REPORT, /* u8 type; Report */
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0x3f, 0x00, /* u16 len */ |
248 |
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/* one endpoint (status change endpoint) */
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0x07, /* u8 ep_bLength; */ |
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USB_DT_ENDPOINT, /* u8 ep_bDescriptorType; Endpoint */
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USB_DIR_IN | 0x01, /* u8 ep_bEndpointAddress; IN Endpoint 1 */ |
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0x03, /* u8 ep_bmAttributes; Interrupt */ |
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0x08, 0x00, /* u16 ep_wMaxPacketSize; */ |
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0x0a, /* u8 ep_bInterval; (255ms -- usb 2.0 spec) */ |
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}; |
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static const uint8_t qemu_mouse_hid_report_descriptor[] = { |
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0x05, 0x01, 0x09, 0x02, 0xA1, 0x01, 0x09, 0x01, |
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0xA1, 0x00, 0x05, 0x09, 0x19, 0x01, 0x29, 0x03, |
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0x15, 0x00, 0x25, 0x01, 0x95, 0x03, 0x75, 0x01, |
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0x81, 0x02, 0x95, 0x01, 0x75, 0x05, 0x81, 0x01, |
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0x05, 0x01, 0x09, 0x30, 0x09, 0x31, 0x15, 0x81, |
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0x25, 0x7F, 0x75, 0x08, 0x95, 0x02, 0x81, 0x06, |
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0xC0, 0xC0, |
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}; |
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|
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static const uint8_t qemu_tablet_hid_report_descriptor[] = { |
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0x05, 0x01, /* Usage Page Generic Desktop */ |
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0x09, 0x01, /* Usage Mouse */ |
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0xA1, 0x01, /* Collection Application */ |
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0x09, 0x01, /* Usage Pointer */ |
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0xA1, 0x00, /* Collection Physical */ |
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0x05, 0x09, /* Usage Page Button */ |
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0x19, 0x01, /* Usage Minimum Button 1 */ |
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0x29, 0x03, /* Usage Maximum Button 3 */ |
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0x15, 0x00, /* Logical Minimum 0 */ |
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0x25, 0x01, /* Logical Maximum 1 */ |
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0x95, 0x03, /* Report Count 3 */ |
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0x75, 0x01, /* Report Size 1 */ |
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0x81, 0x02, /* Input (Data, Var, Abs) */ |
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0x95, 0x01, /* Report Count 1 */ |
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0x75, 0x05, /* Report Size 5 */ |
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0x81, 0x01, /* Input (Cnst, Var, Abs) */ |
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0x05, 0x01, /* Usage Page Generic Desktop */ |
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0x09, 0x30, /* Usage X */ |
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0x09, 0x31, /* Usage Y */ |
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0x15, 0x00, /* Logical Minimum 0 */ |
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0x26, 0xFF, 0x7F, /* Logical Maximum 0x7fff */ |
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0x35, 0x00, /* Physical Minimum 0 */ |
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0x46, 0xFE, 0x7F, /* Physical Maximum 0x7fff */ |
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0x75, 0x10, /* Report Size 16 */ |
293 |
0x95, 0x02, /* Report Count 2 */ |
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0x81, 0x02, /* Input (Data, Var, Abs) */ |
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0x05, 0x01, /* Usage Page Generic Desktop */ |
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0x09, 0x38, /* Usage Wheel */ |
297 |
0x15, 0x81, /* Logical Minimum -127 */ |
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0x25, 0x7F, /* Logical Maximum 127 */ |
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0x35, 0x00, /* Physical Minimum 0 (same as logical) */ |
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0x45, 0x00, /* Physical Maximum 0 (same as logical) */ |
301 |
0x75, 0x08, /* Report Size 8 */ |
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0x95, 0x01, /* Report Count 1 */ |
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0x81, 0x02, /* Input (Data, Var, Rel) */ |
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0xC0, /* End Collection */ |
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0xC0, /* End Collection */ |
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}; |
307 |
|
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static const uint8_t qemu_keyboard_hid_report_descriptor[] = { |
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0x05, 0x01, /* Usage Page (Generic Desktop) */ |
310 |
0x09, 0x06, /* Usage (Keyboard) */ |
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0xa1, 0x01, /* Collection (Application) */ |
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0x75, 0x01, /* Report Size (1) */ |
313 |
0x95, 0x08, /* Report Count (8) */ |
314 |
0x05, 0x07, /* Usage Page (Key Codes) */ |
315 |
0x19, 0xe0, /* Usage Minimum (224) */ |
316 |
0x29, 0xe7, /* Usage Maximum (231) */ |
317 |
0x15, 0x00, /* Logical Minimum (0) */ |
318 |
0x25, 0x01, /* Logical Maximum (1) */ |
319 |
0x81, 0x02, /* Input (Data, Variable, Absolute) */ |
320 |
0x95, 0x01, /* Report Count (1) */ |
321 |
0x75, 0x08, /* Report Size (8) */ |
322 |
0x81, 0x01, /* Input (Constant) */ |
323 |
0x95, 0x05, /* Report Count (5) */ |
324 |
0x75, 0x01, /* Report Size (1) */ |
325 |
0x05, 0x08, /* Usage Page (LEDs) */ |
326 |
0x19, 0x01, /* Usage Minimum (1) */ |
327 |
0x29, 0x05, /* Usage Maximum (5) */ |
328 |
0x91, 0x02, /* Output (Data, Variable, Absolute) */ |
329 |
0x95, 0x01, /* Report Count (1) */ |
330 |
0x75, 0x03, /* Report Size (3) */ |
331 |
0x91, 0x01, /* Output (Constant) */ |
332 |
0x95, 0x06, /* Report Count (6) */ |
333 |
0x75, 0x08, /* Report Size (8) */ |
334 |
0x15, 0x00, /* Logical Minimum (0) */ |
335 |
0x25, 0xff, /* Logical Maximum (255) */ |
336 |
0x05, 0x07, /* Usage Page (Key Codes) */ |
337 |
0x19, 0x00, /* Usage Minimum (0) */ |
338 |
0x29, 0xff, /* Usage Maximum (255) */ |
339 |
0x81, 0x00, /* Input (Data, Array) */ |
340 |
0xc0, /* End Collection */ |
341 |
}; |
342 |
|
343 |
#define USB_HID_USAGE_ERROR_ROLLOVER 0x01 |
344 |
#define USB_HID_USAGE_POSTFAIL 0x02 |
345 |
#define USB_HID_USAGE_ERROR_UNDEFINED 0x03 |
346 |
|
347 |
/* Indices are QEMU keycodes, values are from HID Usage Table. Indices
|
348 |
* above 0x80 are for keys that come after 0xe0 or 0xe1+0x1d or 0xe1+0x9d. */
|
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static const uint8_t usb_hid_usage_keys[0x100] = { |
350 |
0x00, 0x29, 0x1e, 0x1f, 0x20, 0x21, 0x22, 0x23, |
351 |
0x24, 0x25, 0x26, 0x27, 0x2d, 0x2e, 0x2a, 0x2b, |
352 |
0x14, 0x1a, 0x08, 0x15, 0x17, 0x1c, 0x18, 0x0c, |
353 |
0x12, 0x13, 0x2f, 0x30, 0x28, 0xe0, 0x04, 0x16, |
354 |
0x07, 0x09, 0x0a, 0x0b, 0x0d, 0x0e, 0x0f, 0x33, |
355 |
0x34, 0x35, 0xe1, 0x31, 0x1d, 0x1b, 0x06, 0x19, |
356 |
0x05, 0x11, 0x10, 0x36, 0x37, 0x38, 0xe5, 0x55, |
357 |
0xe2, 0x2c, 0x32, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, |
358 |
0x3f, 0x40, 0x41, 0x42, 0x43, 0x53, 0x47, 0x5f, |
359 |
0x60, 0x61, 0x56, 0x5c, 0x5d, 0x5e, 0x57, 0x59, |
360 |
0x5a, 0x5b, 0x62, 0x63, 0x00, 0x00, 0x00, 0x44, |
361 |
0x45, 0x68, 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, |
362 |
0xe8, 0xe9, 0x71, 0x72, 0x73, 0x00, 0x00, 0x00, |
363 |
0x00, 0x00, 0x00, 0x85, 0x00, 0x00, 0x00, 0x00, |
364 |
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, |
365 |
0x00, 0x00, 0x00, 0x00, 0x00, 0xe3, 0xe7, 0x65, |
366 |
|
367 |
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, |
368 |
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, |
369 |
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, |
370 |
0x00, 0x00, 0x00, 0x00, 0x58, 0xe4, 0x00, 0x00, |
371 |
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, |
372 |
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, |
373 |
0x00, 0x00, 0x00, 0x00, 0x00, 0x54, 0x00, 0x46, |
374 |
0xe6, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, |
375 |
0x00, 0x00, 0x00, 0x00, 0x00, 0x48, 0x00, 0x4a, |
376 |
0x52, 0x4b, 0x00, 0x50, 0x00, 0x4f, 0x00, 0x4d, |
377 |
0x51, 0x4e, 0x49, 0x4c, 0x00, 0x00, 0x00, 0x00, |
378 |
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, |
379 |
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, |
380 |
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, |
381 |
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, |
382 |
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, |
383 |
}; |
384 |
|
385 |
static void usb_mouse_event(void *opaque, |
386 |
int dx1, int dy1, int dz1, int buttons_state) |
387 |
{ |
388 |
USBHIDState *hs = opaque; |
389 |
USBMouseState *s = &hs->ptr; |
390 |
|
391 |
s->dx += dx1; |
392 |
s->dy += dy1; |
393 |
s->dz += dz1; |
394 |
s->buttons_state = buttons_state; |
395 |
hs->changed = 1;
|
396 |
} |
397 |
|
398 |
static void usb_tablet_event(void *opaque, |
399 |
int x, int y, int dz, int buttons_state) |
400 |
{ |
401 |
USBHIDState *hs = opaque; |
402 |
USBMouseState *s = &hs->ptr; |
403 |
|
404 |
s->x = x; |
405 |
s->y = y; |
406 |
s->dz += dz; |
407 |
s->buttons_state = buttons_state; |
408 |
hs->changed = 1;
|
409 |
} |
410 |
|
411 |
static void usb_keyboard_event(void *opaque, int keycode) |
412 |
{ |
413 |
USBHIDState *hs = opaque; |
414 |
USBKeyboardState *s = &hs->kbd; |
415 |
uint8_t hid_code, key; |
416 |
int i;
|
417 |
|
418 |
key = keycode & 0x7f;
|
419 |
hid_code = usb_hid_usage_keys[key | ((s->modifiers >> 1) & (1 << 7))]; |
420 |
s->modifiers &= ~(1 << 8); |
421 |
|
422 |
hs->changed = 1;
|
423 |
|
424 |
switch (hid_code) {
|
425 |
case 0x00: |
426 |
return;
|
427 |
|
428 |
case 0xe0: |
429 |
if (s->modifiers & (1 << 9)) { |
430 |
s->modifiers ^= 3 << 8; |
431 |
return;
|
432 |
} |
433 |
case 0xe1 ... 0xe7: |
434 |
if (keycode & (1 << 7)) { |
435 |
s->modifiers &= ~(1 << (hid_code & 0x0f)); |
436 |
return;
|
437 |
} |
438 |
case 0xe8 ... 0xef: |
439 |
s->modifiers |= 1 << (hid_code & 0x0f); |
440 |
return;
|
441 |
} |
442 |
|
443 |
if (keycode & (1 << 7)) { |
444 |
for (i = s->keys - 1; i >= 0; i --) |
445 |
if (s->key[i] == hid_code) {
|
446 |
s->key[i] = s->key[-- s->keys]; |
447 |
s->key[s->keys] = 0x00;
|
448 |
return;
|
449 |
} |
450 |
} else {
|
451 |
for (i = s->keys - 1; i >= 0; i --) |
452 |
if (s->key[i] == hid_code)
|
453 |
return;
|
454 |
if (s->keys < sizeof(s->key)) |
455 |
s->key[s->keys ++] = hid_code; |
456 |
} |
457 |
} |
458 |
|
459 |
static inline int int_clamp(int val, int vmin, int vmax) |
460 |
{ |
461 |
if (val < vmin)
|
462 |
return vmin;
|
463 |
else if (val > vmax) |
464 |
return vmax;
|
465 |
else
|
466 |
return val;
|
467 |
} |
468 |
|
469 |
static int usb_mouse_poll(USBHIDState *hs, uint8_t *buf, int len) |
470 |
{ |
471 |
int dx, dy, dz, b, l;
|
472 |
USBMouseState *s = &hs->ptr; |
473 |
|
474 |
if (!s->mouse_grabbed) {
|
475 |
s->eh_entry = qemu_add_mouse_event_handler(usb_mouse_event, hs, |
476 |
0, "QEMU USB Mouse"); |
477 |
s->mouse_grabbed = 1;
|
478 |
} |
479 |
|
480 |
dx = int_clamp(s->dx, -128, 127); |
481 |
dy = int_clamp(s->dy, -128, 127); |
482 |
dz = int_clamp(s->dz, -128, 127); |
483 |
|
484 |
s->dx -= dx; |
485 |
s->dy -= dy; |
486 |
s->dz -= dz; |
487 |
|
488 |
b = 0;
|
489 |
if (s->buttons_state & MOUSE_EVENT_LBUTTON)
|
490 |
b |= 0x01;
|
491 |
if (s->buttons_state & MOUSE_EVENT_RBUTTON)
|
492 |
b |= 0x02;
|
493 |
if (s->buttons_state & MOUSE_EVENT_MBUTTON)
|
494 |
b |= 0x04;
|
495 |
|
496 |
buf[0] = b;
|
497 |
buf[1] = dx;
|
498 |
buf[2] = dy;
|
499 |
l = 3;
|
500 |
if (len >= 4) { |
501 |
buf[3] = dz;
|
502 |
l = 4;
|
503 |
} |
504 |
return l;
|
505 |
} |
506 |
|
507 |
static int usb_tablet_poll(USBHIDState *hs, uint8_t *buf, int len) |
508 |
{ |
509 |
int dz, b, l;
|
510 |
USBMouseState *s = &hs->ptr; |
511 |
|
512 |
if (!s->mouse_grabbed) {
|
513 |
s->eh_entry = qemu_add_mouse_event_handler(usb_tablet_event, hs, |
514 |
1, "QEMU USB Tablet"); |
515 |
s->mouse_grabbed = 1;
|
516 |
} |
517 |
|
518 |
dz = int_clamp(s->dz, -128, 127); |
519 |
s->dz -= dz; |
520 |
|
521 |
/* Appears we have to invert the wheel direction */
|
522 |
dz = 0 - dz;
|
523 |
b = 0;
|
524 |
if (s->buttons_state & MOUSE_EVENT_LBUTTON)
|
525 |
b |= 0x01;
|
526 |
if (s->buttons_state & MOUSE_EVENT_RBUTTON)
|
527 |
b |= 0x02;
|
528 |
if (s->buttons_state & MOUSE_EVENT_MBUTTON)
|
529 |
b |= 0x04;
|
530 |
|
531 |
buf[0] = b;
|
532 |
buf[1] = s->x & 0xff; |
533 |
buf[2] = s->x >> 8; |
534 |
buf[3] = s->y & 0xff; |
535 |
buf[4] = s->y >> 8; |
536 |
buf[5] = dz;
|
537 |
l = 6;
|
538 |
|
539 |
return l;
|
540 |
} |
541 |
|
542 |
static int usb_keyboard_poll(USBKeyboardState *s, uint8_t *buf, int len) |
543 |
{ |
544 |
if (len < 2) |
545 |
return 0; |
546 |
|
547 |
buf[0] = s->modifiers & 0xff; |
548 |
buf[1] = 0; |
549 |
if (s->keys > 6) |
550 |
memset(buf + 2, USB_HID_USAGE_ERROR_ROLLOVER, MIN(8, len) - 2); |
551 |
else
|
552 |
memcpy(buf + 2, s->key, MIN(8, len) - 2); |
553 |
|
554 |
return MIN(8, len); |
555 |
} |
556 |
|
557 |
static int usb_keyboard_write(USBKeyboardState *s, uint8_t *buf, int len) |
558 |
{ |
559 |
if (len > 0) { |
560 |
/* 0x01: Num Lock LED
|
561 |
* 0x02: Caps Lock LED
|
562 |
* 0x04: Scroll Lock LED
|
563 |
* 0x08: Compose LED
|
564 |
* 0x10: Kana LED */
|
565 |
s->leds = buf[0];
|
566 |
} |
567 |
return 0; |
568 |
} |
569 |
|
570 |
static void usb_mouse_handle_reset(USBDevice *dev) |
571 |
{ |
572 |
USBHIDState *s = (USBHIDState *)dev; |
573 |
|
574 |
s->ptr.dx = 0;
|
575 |
s->ptr.dy = 0;
|
576 |
s->ptr.dz = 0;
|
577 |
s->ptr.x = 0;
|
578 |
s->ptr.y = 0;
|
579 |
s->ptr.buttons_state = 0;
|
580 |
s->protocol = 1;
|
581 |
} |
582 |
|
583 |
static void usb_keyboard_handle_reset(USBDevice *dev) |
584 |
{ |
585 |
USBHIDState *s = (USBHIDState *)dev; |
586 |
|
587 |
qemu_add_kbd_event_handler(usb_keyboard_event, s); |
588 |
s->protocol = 1;
|
589 |
} |
590 |
|
591 |
static int usb_hid_handle_control(USBDevice *dev, int request, int value, |
592 |
int index, int length, uint8_t *data) |
593 |
{ |
594 |
USBHIDState *s = (USBHIDState *)dev; |
595 |
int ret = 0; |
596 |
|
597 |
switch(request) {
|
598 |
case DeviceRequest | USB_REQ_GET_STATUS:
|
599 |
data[0] = (1 << USB_DEVICE_SELF_POWERED) | |
600 |
(dev->remote_wakeup << USB_DEVICE_REMOTE_WAKEUP); |
601 |
data[1] = 0x00; |
602 |
ret = 2;
|
603 |
break;
|
604 |
case DeviceOutRequest | USB_REQ_CLEAR_FEATURE:
|
605 |
if (value == USB_DEVICE_REMOTE_WAKEUP) {
|
606 |
dev->remote_wakeup = 0;
|
607 |
} else {
|
608 |
goto fail;
|
609 |
} |
610 |
ret = 0;
|
611 |
break;
|
612 |
case DeviceOutRequest | USB_REQ_SET_FEATURE:
|
613 |
if (value == USB_DEVICE_REMOTE_WAKEUP) {
|
614 |
dev->remote_wakeup = 1;
|
615 |
} else {
|
616 |
goto fail;
|
617 |
} |
618 |
ret = 0;
|
619 |
break;
|
620 |
case DeviceOutRequest | USB_REQ_SET_ADDRESS:
|
621 |
dev->addr = value; |
622 |
ret = 0;
|
623 |
break;
|
624 |
case DeviceRequest | USB_REQ_GET_DESCRIPTOR:
|
625 |
switch(value >> 8) { |
626 |
case USB_DT_DEVICE:
|
627 |
memcpy(data, qemu_mouse_dev_descriptor, |
628 |
sizeof(qemu_mouse_dev_descriptor));
|
629 |
ret = sizeof(qemu_mouse_dev_descriptor);
|
630 |
break;
|
631 |
case USB_DT_CONFIG:
|
632 |
if (s->kind == USB_MOUSE) {
|
633 |
memcpy(data, qemu_mouse_config_descriptor, |
634 |
sizeof(qemu_mouse_config_descriptor));
|
635 |
ret = sizeof(qemu_mouse_config_descriptor);
|
636 |
} else if (s->kind == USB_TABLET) { |
637 |
memcpy(data, qemu_tablet_config_descriptor, |
638 |
sizeof(qemu_tablet_config_descriptor));
|
639 |
ret = sizeof(qemu_tablet_config_descriptor);
|
640 |
} else if (s->kind == USB_KEYBOARD) { |
641 |
memcpy(data, qemu_keyboard_config_descriptor, |
642 |
sizeof(qemu_keyboard_config_descriptor));
|
643 |
ret = sizeof(qemu_keyboard_config_descriptor);
|
644 |
} |
645 |
break;
|
646 |
case USB_DT_STRING:
|
647 |
switch(value & 0xff) { |
648 |
case 0: |
649 |
/* language ids */
|
650 |
data[0] = 4; |
651 |
data[1] = 3; |
652 |
data[2] = 0x09; |
653 |
data[3] = 0x04; |
654 |
ret = 4;
|
655 |
break;
|
656 |
case 1: |
657 |
/* serial number */
|
658 |
ret = set_usb_string(data, "1");
|
659 |
break;
|
660 |
case 2: |
661 |
/* product description */
|
662 |
ret = set_usb_string(data, s->dev.devname); |
663 |
break;
|
664 |
case 3: |
665 |
/* vendor description */
|
666 |
ret = set_usb_string(data, "QEMU " QEMU_VERSION);
|
667 |
break;
|
668 |
case 4: |
669 |
ret = set_usb_string(data, "HID Mouse");
|
670 |
break;
|
671 |
case 5: |
672 |
ret = set_usb_string(data, "HID Tablet");
|
673 |
break;
|
674 |
case 6: |
675 |
ret = set_usb_string(data, "HID Keyboard");
|
676 |
break;
|
677 |
case 7: |
678 |
ret = set_usb_string(data, "Endpoint1 Interrupt Pipe");
|
679 |
break;
|
680 |
default:
|
681 |
goto fail;
|
682 |
} |
683 |
break;
|
684 |
default:
|
685 |
goto fail;
|
686 |
} |
687 |
break;
|
688 |
case DeviceRequest | USB_REQ_GET_CONFIGURATION:
|
689 |
data[0] = 1; |
690 |
ret = 1;
|
691 |
break;
|
692 |
case DeviceOutRequest | USB_REQ_SET_CONFIGURATION:
|
693 |
ret = 0;
|
694 |
break;
|
695 |
case DeviceRequest | USB_REQ_GET_INTERFACE:
|
696 |
data[0] = 0; |
697 |
ret = 1;
|
698 |
break;
|
699 |
case DeviceOutRequest | USB_REQ_SET_INTERFACE:
|
700 |
ret = 0;
|
701 |
break;
|
702 |
/* hid specific requests */
|
703 |
case InterfaceRequest | USB_REQ_GET_DESCRIPTOR:
|
704 |
switch(value >> 8) { |
705 |
case 0x22: |
706 |
if (s->kind == USB_MOUSE) {
|
707 |
memcpy(data, qemu_mouse_hid_report_descriptor, |
708 |
sizeof(qemu_mouse_hid_report_descriptor));
|
709 |
ret = sizeof(qemu_mouse_hid_report_descriptor);
|
710 |
} else if (s->kind == USB_TABLET) { |
711 |
memcpy(data, qemu_tablet_hid_report_descriptor, |
712 |
sizeof(qemu_tablet_hid_report_descriptor));
|
713 |
ret = sizeof(qemu_tablet_hid_report_descriptor);
|
714 |
} else if (s->kind == USB_KEYBOARD) { |
715 |
memcpy(data, qemu_keyboard_hid_report_descriptor, |
716 |
sizeof(qemu_keyboard_hid_report_descriptor));
|
717 |
ret = sizeof(qemu_keyboard_hid_report_descriptor);
|
718 |
} |
719 |
break;
|
720 |
default:
|
721 |
goto fail;
|
722 |
} |
723 |
break;
|
724 |
case GET_REPORT:
|
725 |
if (s->kind == USB_MOUSE)
|
726 |
ret = usb_mouse_poll(s, data, length); |
727 |
else if (s->kind == USB_TABLET) |
728 |
ret = usb_tablet_poll(s, data, length); |
729 |
else if (s->kind == USB_KEYBOARD) |
730 |
ret = usb_keyboard_poll(&s->kbd, data, length); |
731 |
break;
|
732 |
case SET_REPORT:
|
733 |
if (s->kind == USB_KEYBOARD)
|
734 |
ret = usb_keyboard_write(&s->kbd, data, length); |
735 |
else
|
736 |
goto fail;
|
737 |
break;
|
738 |
case GET_PROTOCOL:
|
739 |
if (s->kind != USB_KEYBOARD)
|
740 |
goto fail;
|
741 |
ret = 1;
|
742 |
data[0] = s->protocol;
|
743 |
break;
|
744 |
case SET_PROTOCOL:
|
745 |
if (s->kind != USB_KEYBOARD)
|
746 |
goto fail;
|
747 |
ret = 0;
|
748 |
s->protocol = value; |
749 |
break;
|
750 |
case GET_IDLE:
|
751 |
ret = 1;
|
752 |
data[0] = s->idle;
|
753 |
break;
|
754 |
case SET_IDLE:
|
755 |
s->idle = value; |
756 |
ret = 0;
|
757 |
break;
|
758 |
default:
|
759 |
fail:
|
760 |
ret = USB_RET_STALL; |
761 |
break;
|
762 |
} |
763 |
return ret;
|
764 |
} |
765 |
|
766 |
static int usb_hid_handle_data(USBDevice *dev, USBPacket *p) |
767 |
{ |
768 |
USBHIDState *s = (USBHIDState *)dev; |
769 |
int ret = 0; |
770 |
|
771 |
switch(p->pid) {
|
772 |
case USB_TOKEN_IN:
|
773 |
if (p->devep == 1) { |
774 |
/* TODO: Implement finite idle delays. */
|
775 |
if (!(s->changed || s->idle))
|
776 |
return USB_RET_NAK;
|
777 |
s->changed = 0;
|
778 |
if (s->kind == USB_MOUSE)
|
779 |
ret = usb_mouse_poll(s, p->data, p->len); |
780 |
else if (s->kind == USB_TABLET) |
781 |
ret = usb_tablet_poll(s, p->data, p->len); |
782 |
else if (s->kind == USB_KEYBOARD) |
783 |
ret = usb_keyboard_poll(&s->kbd, p->data, p->len); |
784 |
} else {
|
785 |
goto fail;
|
786 |
} |
787 |
break;
|
788 |
case USB_TOKEN_OUT:
|
789 |
default:
|
790 |
fail:
|
791 |
ret = USB_RET_STALL; |
792 |
break;
|
793 |
} |
794 |
return ret;
|
795 |
} |
796 |
|
797 |
static void usb_hid_handle_destroy(USBDevice *dev) |
798 |
{ |
799 |
USBHIDState *s = (USBHIDState *)dev; |
800 |
|
801 |
if (s->kind != USB_KEYBOARD)
|
802 |
qemu_remove_mouse_event_handler(s->ptr.eh_entry); |
803 |
/* TODO: else */
|
804 |
qemu_free(s); |
805 |
} |
806 |
|
807 |
USBDevice *usb_tablet_init(void)
|
808 |
{ |
809 |
USBHIDState *s; |
810 |
|
811 |
s = qemu_mallocz(sizeof(USBHIDState));
|
812 |
if (!s)
|
813 |
return NULL; |
814 |
s->dev.speed = USB_SPEED_FULL; |
815 |
s->dev.handle_packet = usb_generic_handle_packet; |
816 |
|
817 |
s->dev.handle_reset = usb_mouse_handle_reset; |
818 |
s->dev.handle_control = usb_hid_handle_control; |
819 |
s->dev.handle_data = usb_hid_handle_data; |
820 |
s->dev.handle_destroy = usb_hid_handle_destroy; |
821 |
s->kind = USB_TABLET; |
822 |
/* Force poll routine to be run and grab input the first time. */
|
823 |
s->changed = 1;
|
824 |
|
825 |
pstrcpy(s->dev.devname, sizeof(s->dev.devname), "QEMU USB Tablet"); |
826 |
|
827 |
return (USBDevice *)s;
|
828 |
} |
829 |
|
830 |
USBDevice *usb_mouse_init(void)
|
831 |
{ |
832 |
USBHIDState *s; |
833 |
|
834 |
s = qemu_mallocz(sizeof(USBHIDState));
|
835 |
if (!s)
|
836 |
return NULL; |
837 |
s->dev.speed = USB_SPEED_FULL; |
838 |
s->dev.handle_packet = usb_generic_handle_packet; |
839 |
|
840 |
s->dev.handle_reset = usb_mouse_handle_reset; |
841 |
s->dev.handle_control = usb_hid_handle_control; |
842 |
s->dev.handle_data = usb_hid_handle_data; |
843 |
s->dev.handle_destroy = usb_hid_handle_destroy; |
844 |
s->kind = USB_MOUSE; |
845 |
/* Force poll routine to be run and grab input the first time. */
|
846 |
s->changed = 1;
|
847 |
|
848 |
pstrcpy(s->dev.devname, sizeof(s->dev.devname), "QEMU USB Mouse"); |
849 |
|
850 |
return (USBDevice *)s;
|
851 |
} |
852 |
|
853 |
USBDevice *usb_keyboard_init(void)
|
854 |
{ |
855 |
USBHIDState *s; |
856 |
|
857 |
s = qemu_mallocz(sizeof(USBHIDState));
|
858 |
if (!s)
|
859 |
return NULL; |
860 |
s->dev.speed = USB_SPEED_FULL; |
861 |
s->dev.handle_packet = usb_generic_handle_packet; |
862 |
|
863 |
s->dev.handle_reset = usb_keyboard_handle_reset; |
864 |
s->dev.handle_control = usb_hid_handle_control; |
865 |
s->dev.handle_data = usb_hid_handle_data; |
866 |
s->dev.handle_destroy = usb_hid_handle_destroy; |
867 |
s->kind = USB_KEYBOARD; |
868 |
|
869 |
pstrcpy(s->dev.devname, sizeof(s->dev.devname), "QEMU USB Keyboard"); |
870 |
|
871 |
return (USBDevice *) s;
|
872 |
} |