root / hw / usb-hid.c @ bd87813e
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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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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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uint8_t idle; |
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int64_t next_idle_clock; |
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int changed;
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void *datain_opaque;
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void (*datain)(void *); |
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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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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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0xe0, /* 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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52, 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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0x04, 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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/* 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 */ |
251 |
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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, /* Usage Page (Generic Desktop) */ |
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0x09, 0x02, /* 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 (1) */ |
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0x29, 0x03, /* Usage Maximum (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) */ |
273 |
0x75, 0x01, /* Report Size (1) */ |
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0x81, 0x02, /* Input (Data, Variable, Absolute) */ |
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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 (Constant) */ |
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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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0x09, 0x38, /* Usage (Wheel) */ |
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0x15, 0x81, /* Logical Minimum (-0x7f) */ |
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0x25, 0x7f, /* Logical Maximum (0x7f) */ |
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0x75, 0x08, /* Report Size (8) */ |
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0x95, 0x03, /* Report Count (3) */ |
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0x81, 0x06, /* Input (Data, Variable, Relative) */ |
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0xc0, /* End Collection */ |
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0xc0, /* End Collection */ |
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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 (Pointer) */ |
294 |
0xa1, 0x01, /* Collection (Application) */ |
295 |
0x09, 0x01, /* Usage (Pointer) */ |
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0xa1, 0x00, /* Collection (Physical) */ |
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0x05, 0x09, /* Usage Page (Button) */ |
298 |
0x19, 0x01, /* Usage Minimum (1) */ |
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0x29, 0x03, /* Usage Maximum (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) */ |
304 |
0x81, 0x02, /* Input (Data, Variable, Absolute) */ |
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0x95, 0x01, /* Report Count (1) */ |
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0x75, 0x05, /* Report Size (5) */ |
307 |
0x81, 0x01, /* Input (Constant) */ |
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0x05, 0x01, /* Usage Page (Generic Desktop) */ |
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0x09, 0x30, /* Usage (X) */ |
310 |
0x09, 0x31, /* Usage (Y) */ |
311 |
0x15, 0x00, /* Logical Minimum (0) */ |
312 |
0x26, 0xff, 0x7f, /* Logical Maximum (0x7fff) */ |
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0x35, 0x00, /* Physical Minimum (0) */ |
314 |
0x46, 0xff, 0x7f, /* Physical Maximum (0x7fff) */ |
315 |
0x75, 0x10, /* Report Size (16) */ |
316 |
0x95, 0x02, /* Report Count (2) */ |
317 |
0x81, 0x02, /* Input (Data, Variable, Absolute) */ |
318 |
0x05, 0x01, /* Usage Page (Generic Desktop) */ |
319 |
0x09, 0x38, /* Usage (Wheel) */ |
320 |
0x15, 0x81, /* Logical Minimum (-0x7f) */ |
321 |
0x25, 0x7f, /* Logical Maximum (0x7f) */ |
322 |
0x35, 0x00, /* Physical Minimum (same as logical) */ |
323 |
0x45, 0x00, /* Physical Maximum (same as logical) */ |
324 |
0x75, 0x08, /* Report Size (8) */ |
325 |
0x95, 0x01, /* Report Count (1) */ |
326 |
0x81, 0x06, /* Input (Data, Variable, Relative) */ |
327 |
0xc0, /* End Collection */ |
328 |
0xc0, /* End Collection */ |
329 |
}; |
330 |
|
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static const uint8_t qemu_keyboard_hid_report_descriptor[] = { |
332 |
0x05, 0x01, /* Usage Page (Generic Desktop) */ |
333 |
0x09, 0x06, /* Usage (Keyboard) */ |
334 |
0xa1, 0x01, /* Collection (Application) */ |
335 |
0x75, 0x01, /* Report Size (1) */ |
336 |
0x95, 0x08, /* Report Count (8) */ |
337 |
0x05, 0x07, /* Usage Page (Key Codes) */ |
338 |
0x19, 0xe0, /* Usage Minimum (224) */ |
339 |
0x29, 0xe7, /* Usage Maximum (231) */ |
340 |
0x15, 0x00, /* Logical Minimum (0) */ |
341 |
0x25, 0x01, /* Logical Maximum (1) */ |
342 |
0x81, 0x02, /* Input (Data, Variable, Absolute) */ |
343 |
0x95, 0x01, /* Report Count (1) */ |
344 |
0x75, 0x08, /* Report Size (8) */ |
345 |
0x81, 0x01, /* Input (Constant) */ |
346 |
0x95, 0x05, /* Report Count (5) */ |
347 |
0x75, 0x01, /* Report Size (1) */ |
348 |
0x05, 0x08, /* Usage Page (LEDs) */ |
349 |
0x19, 0x01, /* Usage Minimum (1) */ |
350 |
0x29, 0x05, /* Usage Maximum (5) */ |
351 |
0x91, 0x02, /* Output (Data, Variable, Absolute) */ |
352 |
0x95, 0x01, /* Report Count (1) */ |
353 |
0x75, 0x03, /* Report Size (3) */ |
354 |
0x91, 0x01, /* Output (Constant) */ |
355 |
0x95, 0x06, /* Report Count (6) */ |
356 |
0x75, 0x08, /* Report Size (8) */ |
357 |
0x15, 0x00, /* Logical Minimum (0) */ |
358 |
0x25, 0xff, /* Logical Maximum (255) */ |
359 |
0x05, 0x07, /* Usage Page (Key Codes) */ |
360 |
0x19, 0x00, /* Usage Minimum (0) */ |
361 |
0x29, 0xff, /* Usage Maximum (255) */ |
362 |
0x81, 0x00, /* Input (Data, Array) */ |
363 |
0xc0, /* End Collection */ |
364 |
}; |
365 |
|
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#define USB_HID_USAGE_ERROR_ROLLOVER 0x01 |
367 |
#define USB_HID_USAGE_POSTFAIL 0x02 |
368 |
#define USB_HID_USAGE_ERROR_UNDEFINED 0x03 |
369 |
|
370 |
/* Indices are QEMU keycodes, values are from HID Usage Table. Indices
|
371 |
* above 0x80 are for keys that come after 0xe0 or 0xe1+0x1d or 0xe1+0x9d. */
|
372 |
static const uint8_t usb_hid_usage_keys[0x100] = { |
373 |
0x00, 0x29, 0x1e, 0x1f, 0x20, 0x21, 0x22, 0x23, |
374 |
0x24, 0x25, 0x26, 0x27, 0x2d, 0x2e, 0x2a, 0x2b, |
375 |
0x14, 0x1a, 0x08, 0x15, 0x17, 0x1c, 0x18, 0x0c, |
376 |
0x12, 0x13, 0x2f, 0x30, 0x28, 0xe0, 0x04, 0x16, |
377 |
0x07, 0x09, 0x0a, 0x0b, 0x0d, 0x0e, 0x0f, 0x33, |
378 |
0x34, 0x35, 0xe1, 0x31, 0x1d, 0x1b, 0x06, 0x19, |
379 |
0x05, 0x11, 0x10, 0x36, 0x37, 0x38, 0xe5, 0x55, |
380 |
0xe2, 0x2c, 0x32, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, |
381 |
0x3f, 0x40, 0x41, 0x42, 0x43, 0x53, 0x47, 0x5f, |
382 |
0x60, 0x61, 0x56, 0x5c, 0x5d, 0x5e, 0x57, 0x59, |
383 |
0x5a, 0x5b, 0x62, 0x63, 0x00, 0x00, 0x00, 0x44, |
384 |
0x45, 0x68, 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, |
385 |
0xe8, 0xe9, 0x71, 0x72, 0x73, 0x00, 0x00, 0x00, |
386 |
0x00, 0x00, 0x00, 0x85, 0x00, 0x00, 0x00, 0x00, |
387 |
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, |
388 |
0x00, 0x00, 0x00, 0x00, 0x00, 0xe3, 0xe7, 0x65, |
389 |
|
390 |
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, |
391 |
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, |
392 |
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, |
393 |
0x00, 0x00, 0x00, 0x00, 0x58, 0xe4, 0x00, 0x00, |
394 |
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, |
395 |
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, |
396 |
0x00, 0x00, 0x00, 0x00, 0x00, 0x54, 0x00, 0x46, |
397 |
0xe6, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, |
398 |
0x00, 0x00, 0x00, 0x00, 0x00, 0x48, 0x00, 0x4a, |
399 |
0x52, 0x4b, 0x00, 0x50, 0x00, 0x4f, 0x00, 0x4d, |
400 |
0x51, 0x4e, 0x49, 0x4c, 0x00, 0x00, 0x00, 0x00, |
401 |
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, |
402 |
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, |
403 |
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, |
404 |
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, |
405 |
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, |
406 |
}; |
407 |
|
408 |
static void usb_hid_changed(USBHIDState *hs) |
409 |
{ |
410 |
hs->changed = 1;
|
411 |
|
412 |
if (hs->datain)
|
413 |
hs->datain(hs->datain_opaque); |
414 |
} |
415 |
|
416 |
static void usb_mouse_event(void *opaque, |
417 |
int dx1, int dy1, int dz1, int buttons_state) |
418 |
{ |
419 |
USBHIDState *hs = opaque; |
420 |
USBMouseState *s = &hs->ptr; |
421 |
|
422 |
s->dx += dx1; |
423 |
s->dy += dy1; |
424 |
s->dz += dz1; |
425 |
s->buttons_state = buttons_state; |
426 |
|
427 |
usb_hid_changed(hs); |
428 |
} |
429 |
|
430 |
static void usb_tablet_event(void *opaque, |
431 |
int x, int y, int dz, int buttons_state) |
432 |
{ |
433 |
USBHIDState *hs = opaque; |
434 |
USBMouseState *s = &hs->ptr; |
435 |
|
436 |
s->x = x; |
437 |
s->y = y; |
438 |
s->dz += dz; |
439 |
s->buttons_state = buttons_state; |
440 |
|
441 |
usb_hid_changed(hs); |
442 |
} |
443 |
|
444 |
static void usb_keyboard_event(void *opaque, int keycode) |
445 |
{ |
446 |
USBHIDState *hs = opaque; |
447 |
USBKeyboardState *s = &hs->kbd; |
448 |
uint8_t hid_code, key; |
449 |
int i;
|
450 |
|
451 |
key = keycode & 0x7f;
|
452 |
hid_code = usb_hid_usage_keys[key | ((s->modifiers >> 1) & (1 << 7))]; |
453 |
s->modifiers &= ~(1 << 8); |
454 |
|
455 |
switch (hid_code) {
|
456 |
case 0x00: |
457 |
return;
|
458 |
|
459 |
case 0xe0: |
460 |
if (s->modifiers & (1 << 9)) { |
461 |
s->modifiers ^= 3 << 8; |
462 |
return;
|
463 |
} |
464 |
case 0xe1 ... 0xe7: |
465 |
if (keycode & (1 << 7)) { |
466 |
s->modifiers &= ~(1 << (hid_code & 0x0f)); |
467 |
return;
|
468 |
} |
469 |
case 0xe8 ... 0xef: |
470 |
s->modifiers |= 1 << (hid_code & 0x0f); |
471 |
return;
|
472 |
} |
473 |
|
474 |
if (keycode & (1 << 7)) { |
475 |
for (i = s->keys - 1; i >= 0; i --) |
476 |
if (s->key[i] == hid_code) {
|
477 |
s->key[i] = s->key[-- s->keys]; |
478 |
s->key[s->keys] = 0x00;
|
479 |
usb_hid_changed(hs); |
480 |
break;
|
481 |
} |
482 |
if (i < 0) |
483 |
return;
|
484 |
} else {
|
485 |
for (i = s->keys - 1; i >= 0; i --) |
486 |
if (s->key[i] == hid_code)
|
487 |
break;
|
488 |
if (i < 0) { |
489 |
if (s->keys < sizeof(s->key)) |
490 |
s->key[s->keys ++] = hid_code; |
491 |
} else
|
492 |
return;
|
493 |
} |
494 |
|
495 |
usb_hid_changed(hs); |
496 |
} |
497 |
|
498 |
static inline int int_clamp(int val, int vmin, int vmax) |
499 |
{ |
500 |
if (val < vmin)
|
501 |
return vmin;
|
502 |
else if (val > vmax) |
503 |
return vmax;
|
504 |
else
|
505 |
return val;
|
506 |
} |
507 |
|
508 |
static int usb_mouse_poll(USBHIDState *hs, uint8_t *buf, int len) |
509 |
{ |
510 |
int dx, dy, dz, b, l;
|
511 |
USBMouseState *s = &hs->ptr; |
512 |
|
513 |
if (!s->mouse_grabbed) {
|
514 |
s->eh_entry = qemu_add_mouse_event_handler(usb_mouse_event, hs, |
515 |
0, "QEMU USB Mouse"); |
516 |
s->mouse_grabbed = 1;
|
517 |
} |
518 |
|
519 |
dx = int_clamp(s->dx, -127, 127); |
520 |
dy = int_clamp(s->dy, -127, 127); |
521 |
dz = int_clamp(s->dz, -127, 127); |
522 |
|
523 |
s->dx -= dx; |
524 |
s->dy -= dy; |
525 |
s->dz -= dz; |
526 |
|
527 |
/* Appears we have to invert the wheel direction */
|
528 |
dz = 0 - dz;
|
529 |
|
530 |
b = 0;
|
531 |
if (s->buttons_state & MOUSE_EVENT_LBUTTON)
|
532 |
b |= 0x01;
|
533 |
if (s->buttons_state & MOUSE_EVENT_RBUTTON)
|
534 |
b |= 0x02;
|
535 |
if (s->buttons_state & MOUSE_EVENT_MBUTTON)
|
536 |
b |= 0x04;
|
537 |
|
538 |
l = 0;
|
539 |
if (len > l)
|
540 |
buf[l ++] = b; |
541 |
if (len > l)
|
542 |
buf[l ++] = dx; |
543 |
if (len > l)
|
544 |
buf[l ++] = dy; |
545 |
if (len > l)
|
546 |
buf[l ++] = dz; |
547 |
return l;
|
548 |
} |
549 |
|
550 |
static int usb_tablet_poll(USBHIDState *hs, uint8_t *buf, int len) |
551 |
{ |
552 |
int dz, b, l;
|
553 |
USBMouseState *s = &hs->ptr; |
554 |
|
555 |
if (!s->mouse_grabbed) {
|
556 |
s->eh_entry = qemu_add_mouse_event_handler(usb_tablet_event, hs, |
557 |
1, "QEMU USB Tablet"); |
558 |
s->mouse_grabbed = 1;
|
559 |
} |
560 |
|
561 |
dz = int_clamp(s->dz, -127, 127); |
562 |
s->dz -= dz; |
563 |
|
564 |
/* Appears we have to invert the wheel direction */
|
565 |
dz = 0 - dz;
|
566 |
b = 0;
|
567 |
if (s->buttons_state & MOUSE_EVENT_LBUTTON)
|
568 |
b |= 0x01;
|
569 |
if (s->buttons_state & MOUSE_EVENT_RBUTTON)
|
570 |
b |= 0x02;
|
571 |
if (s->buttons_state & MOUSE_EVENT_MBUTTON)
|
572 |
b |= 0x04;
|
573 |
|
574 |
buf[0] = b;
|
575 |
buf[1] = s->x & 0xff; |
576 |
buf[2] = s->x >> 8; |
577 |
buf[3] = s->y & 0xff; |
578 |
buf[4] = s->y >> 8; |
579 |
buf[5] = dz;
|
580 |
l = 6;
|
581 |
|
582 |
return l;
|
583 |
} |
584 |
|
585 |
static int usb_keyboard_poll(USBKeyboardState *s, uint8_t *buf, int len) |
586 |
{ |
587 |
if (len < 2) |
588 |
return 0; |
589 |
|
590 |
buf[0] = s->modifiers & 0xff; |
591 |
buf[1] = 0; |
592 |
if (s->keys > 6) |
593 |
memset(buf + 2, USB_HID_USAGE_ERROR_ROLLOVER, MIN(8, len) - 2); |
594 |
else
|
595 |
memcpy(buf + 2, s->key, MIN(8, len) - 2); |
596 |
|
597 |
return MIN(8, len); |
598 |
} |
599 |
|
600 |
static int usb_keyboard_write(USBKeyboardState *s, uint8_t *buf, int len) |
601 |
{ |
602 |
if (len > 0) { |
603 |
int ledstate = 0; |
604 |
/* 0x01: Num Lock LED
|
605 |
* 0x02: Caps Lock LED
|
606 |
* 0x04: Scroll Lock LED
|
607 |
* 0x08: Compose LED
|
608 |
* 0x10: Kana LED */
|
609 |
s->leds = buf[0];
|
610 |
if (s->leds & 0x04) |
611 |
ledstate |= QEMU_SCROLL_LOCK_LED; |
612 |
if (s->leds & 0x01) |
613 |
ledstate |= QEMU_NUM_LOCK_LED; |
614 |
if (s->leds & 0x02) |
615 |
ledstate |= QEMU_CAPS_LOCK_LED; |
616 |
kbd_put_ledstate(ledstate); |
617 |
} |
618 |
return 0; |
619 |
} |
620 |
|
621 |
static void usb_mouse_handle_reset(USBDevice *dev) |
622 |
{ |
623 |
USBHIDState *s = (USBHIDState *)dev; |
624 |
|
625 |
s->ptr.dx = 0;
|
626 |
s->ptr.dy = 0;
|
627 |
s->ptr.dz = 0;
|
628 |
s->ptr.x = 0;
|
629 |
s->ptr.y = 0;
|
630 |
s->ptr.buttons_state = 0;
|
631 |
s->protocol = 1;
|
632 |
} |
633 |
|
634 |
static void usb_keyboard_handle_reset(USBDevice *dev) |
635 |
{ |
636 |
USBHIDState *s = (USBHIDState *)dev; |
637 |
|
638 |
qemu_add_kbd_event_handler(usb_keyboard_event, s); |
639 |
s->protocol = 1;
|
640 |
} |
641 |
|
642 |
static void usb_hid_set_next_idle(USBHIDState *s, int64_t curtime) |
643 |
{ |
644 |
s->next_idle_clock = curtime + (get_ticks_per_sec() * s->idle * 4) / 1000; |
645 |
} |
646 |
|
647 |
static int usb_hid_handle_control(USBDevice *dev, int request, int value, |
648 |
int index, int length, uint8_t *data) |
649 |
{ |
650 |
USBHIDState *s = (USBHIDState *)dev; |
651 |
int ret = 0; |
652 |
|
653 |
switch(request) {
|
654 |
case DeviceRequest | USB_REQ_GET_STATUS:
|
655 |
data[0] = (1 << USB_DEVICE_SELF_POWERED) | |
656 |
(dev->remote_wakeup << USB_DEVICE_REMOTE_WAKEUP); |
657 |
data[1] = 0x00; |
658 |
ret = 2;
|
659 |
break;
|
660 |
case DeviceOutRequest | USB_REQ_CLEAR_FEATURE:
|
661 |
if (value == USB_DEVICE_REMOTE_WAKEUP) {
|
662 |
dev->remote_wakeup = 0;
|
663 |
} else {
|
664 |
goto fail;
|
665 |
} |
666 |
ret = 0;
|
667 |
break;
|
668 |
case DeviceOutRequest | USB_REQ_SET_FEATURE:
|
669 |
if (value == USB_DEVICE_REMOTE_WAKEUP) {
|
670 |
dev->remote_wakeup = 1;
|
671 |
} else {
|
672 |
goto fail;
|
673 |
} |
674 |
ret = 0;
|
675 |
break;
|
676 |
case DeviceOutRequest | USB_REQ_SET_ADDRESS:
|
677 |
dev->addr = value; |
678 |
ret = 0;
|
679 |
break;
|
680 |
case DeviceRequest | USB_REQ_GET_DESCRIPTOR:
|
681 |
switch(value >> 8) { |
682 |
case USB_DT_DEVICE:
|
683 |
memcpy(data, qemu_mouse_dev_descriptor, |
684 |
sizeof(qemu_mouse_dev_descriptor));
|
685 |
ret = sizeof(qemu_mouse_dev_descriptor);
|
686 |
break;
|
687 |
case USB_DT_CONFIG:
|
688 |
if (s->kind == USB_MOUSE) {
|
689 |
memcpy(data, qemu_mouse_config_descriptor, |
690 |
sizeof(qemu_mouse_config_descriptor));
|
691 |
ret = sizeof(qemu_mouse_config_descriptor);
|
692 |
} else if (s->kind == USB_TABLET) { |
693 |
memcpy(data, qemu_tablet_config_descriptor, |
694 |
sizeof(qemu_tablet_config_descriptor));
|
695 |
ret = sizeof(qemu_tablet_config_descriptor);
|
696 |
} else if (s->kind == USB_KEYBOARD) { |
697 |
memcpy(data, qemu_keyboard_config_descriptor, |
698 |
sizeof(qemu_keyboard_config_descriptor));
|
699 |
ret = sizeof(qemu_keyboard_config_descriptor);
|
700 |
} |
701 |
break;
|
702 |
case USB_DT_STRING:
|
703 |
switch(value & 0xff) { |
704 |
case 0: |
705 |
/* language ids */
|
706 |
data[0] = 4; |
707 |
data[1] = 3; |
708 |
data[2] = 0x09; |
709 |
data[3] = 0x04; |
710 |
ret = 4;
|
711 |
break;
|
712 |
case 1: |
713 |
/* serial number */
|
714 |
ret = set_usb_string(data, "1");
|
715 |
break;
|
716 |
case 2: |
717 |
/* product description */
|
718 |
ret = set_usb_string(data, s->dev.product_desc); |
719 |
break;
|
720 |
case 3: |
721 |
/* vendor description */
|
722 |
ret = set_usb_string(data, "QEMU " QEMU_VERSION);
|
723 |
break;
|
724 |
case 4: |
725 |
ret = set_usb_string(data, "HID Mouse");
|
726 |
break;
|
727 |
case 5: |
728 |
ret = set_usb_string(data, "HID Tablet");
|
729 |
break;
|
730 |
case 6: |
731 |
ret = set_usb_string(data, "HID Keyboard");
|
732 |
break;
|
733 |
case 7: |
734 |
ret = set_usb_string(data, "Endpoint1 Interrupt Pipe");
|
735 |
break;
|
736 |
default:
|
737 |
goto fail;
|
738 |
} |
739 |
break;
|
740 |
default:
|
741 |
goto fail;
|
742 |
} |
743 |
break;
|
744 |
case DeviceRequest | USB_REQ_GET_CONFIGURATION:
|
745 |
data[0] = 1; |
746 |
ret = 1;
|
747 |
break;
|
748 |
case DeviceOutRequest | USB_REQ_SET_CONFIGURATION:
|
749 |
ret = 0;
|
750 |
break;
|
751 |
case DeviceRequest | USB_REQ_GET_INTERFACE:
|
752 |
data[0] = 0; |
753 |
ret = 1;
|
754 |
break;
|
755 |
case DeviceOutRequest | USB_REQ_SET_INTERFACE:
|
756 |
ret = 0;
|
757 |
break;
|
758 |
/* hid specific requests */
|
759 |
case InterfaceRequest | USB_REQ_GET_DESCRIPTOR:
|
760 |
switch(value >> 8) { |
761 |
case 0x22: |
762 |
if (s->kind == USB_MOUSE) {
|
763 |
memcpy(data, qemu_mouse_hid_report_descriptor, |
764 |
sizeof(qemu_mouse_hid_report_descriptor));
|
765 |
ret = sizeof(qemu_mouse_hid_report_descriptor);
|
766 |
} else if (s->kind == USB_TABLET) { |
767 |
memcpy(data, qemu_tablet_hid_report_descriptor, |
768 |
sizeof(qemu_tablet_hid_report_descriptor));
|
769 |
ret = sizeof(qemu_tablet_hid_report_descriptor);
|
770 |
} else if (s->kind == USB_KEYBOARD) { |
771 |
memcpy(data, qemu_keyboard_hid_report_descriptor, |
772 |
sizeof(qemu_keyboard_hid_report_descriptor));
|
773 |
ret = sizeof(qemu_keyboard_hid_report_descriptor);
|
774 |
} |
775 |
break;
|
776 |
default:
|
777 |
goto fail;
|
778 |
} |
779 |
break;
|
780 |
case GET_REPORT:
|
781 |
if (s->kind == USB_MOUSE)
|
782 |
ret = usb_mouse_poll(s, data, length); |
783 |
else if (s->kind == USB_TABLET) |
784 |
ret = usb_tablet_poll(s, data, length); |
785 |
else if (s->kind == USB_KEYBOARD) |
786 |
ret = usb_keyboard_poll(&s->kbd, data, length); |
787 |
break;
|
788 |
case SET_REPORT:
|
789 |
if (s->kind == USB_KEYBOARD)
|
790 |
ret = usb_keyboard_write(&s->kbd, data, length); |
791 |
else
|
792 |
goto fail;
|
793 |
break;
|
794 |
case GET_PROTOCOL:
|
795 |
if (s->kind != USB_KEYBOARD)
|
796 |
goto fail;
|
797 |
ret = 1;
|
798 |
data[0] = s->protocol;
|
799 |
break;
|
800 |
case SET_PROTOCOL:
|
801 |
if (s->kind != USB_KEYBOARD)
|
802 |
goto fail;
|
803 |
ret = 0;
|
804 |
s->protocol = value; |
805 |
break;
|
806 |
case GET_IDLE:
|
807 |
ret = 1;
|
808 |
data[0] = s->idle;
|
809 |
break;
|
810 |
case SET_IDLE:
|
811 |
s->idle = (uint8_t) (value >> 8);
|
812 |
usb_hid_set_next_idle(s, qemu_get_clock(vm_clock)); |
813 |
ret = 0;
|
814 |
break;
|
815 |
default:
|
816 |
fail:
|
817 |
ret = USB_RET_STALL; |
818 |
break;
|
819 |
} |
820 |
return ret;
|
821 |
} |
822 |
|
823 |
static int usb_hid_handle_data(USBDevice *dev, USBPacket *p) |
824 |
{ |
825 |
USBHIDState *s = (USBHIDState *)dev; |
826 |
int ret = 0; |
827 |
|
828 |
switch(p->pid) {
|
829 |
case USB_TOKEN_IN:
|
830 |
if (p->devep == 1) { |
831 |
int64_t curtime = qemu_get_clock(vm_clock); |
832 |
if (!s->changed && (!s->idle || s->next_idle_clock - curtime > 0)) |
833 |
return USB_RET_NAK;
|
834 |
usb_hid_set_next_idle(s, curtime); |
835 |
s->changed = 0;
|
836 |
if (s->kind == USB_MOUSE)
|
837 |
ret = usb_mouse_poll(s, p->data, p->len); |
838 |
else if (s->kind == USB_TABLET) |
839 |
ret = usb_tablet_poll(s, p->data, p->len); |
840 |
else if (s->kind == USB_KEYBOARD) |
841 |
ret = usb_keyboard_poll(&s->kbd, p->data, p->len); |
842 |
} else {
|
843 |
goto fail;
|
844 |
} |
845 |
break;
|
846 |
case USB_TOKEN_OUT:
|
847 |
default:
|
848 |
fail:
|
849 |
ret = USB_RET_STALL; |
850 |
break;
|
851 |
} |
852 |
return ret;
|
853 |
} |
854 |
|
855 |
static void usb_hid_handle_destroy(USBDevice *dev) |
856 |
{ |
857 |
USBHIDState *s = (USBHIDState *)dev; |
858 |
|
859 |
if (s->kind != USB_KEYBOARD)
|
860 |
qemu_remove_mouse_event_handler(s->ptr.eh_entry); |
861 |
/* TODO: else */
|
862 |
} |
863 |
|
864 |
static int usb_hid_initfn(USBDevice *dev, int kind) |
865 |
{ |
866 |
USBHIDState *s = DO_UPCAST(USBHIDState, dev, dev); |
867 |
s->dev.speed = USB_SPEED_FULL; |
868 |
s->kind = kind; |
869 |
/* Force poll routine to be run and grab input the first time. */
|
870 |
s->changed = 1;
|
871 |
return 0; |
872 |
} |
873 |
|
874 |
static int usb_tablet_initfn(USBDevice *dev) |
875 |
{ |
876 |
return usb_hid_initfn(dev, USB_TABLET);
|
877 |
} |
878 |
|
879 |
static int usb_mouse_initfn(USBDevice *dev) |
880 |
{ |
881 |
return usb_hid_initfn(dev, USB_MOUSE);
|
882 |
} |
883 |
|
884 |
static int usb_keyboard_initfn(USBDevice *dev) |
885 |
{ |
886 |
return usb_hid_initfn(dev, USB_KEYBOARD);
|
887 |
} |
888 |
|
889 |
void usb_hid_datain_cb(USBDevice *dev, void *opaque, void (*datain)(void *)) |
890 |
{ |
891 |
USBHIDState *s = (USBHIDState *)dev; |
892 |
|
893 |
s->datain_opaque = opaque; |
894 |
s->datain = datain; |
895 |
} |
896 |
|
897 |
static struct USBDeviceInfo hid_info[] = { |
898 |
{ |
899 |
.product_desc = "QEMU USB Tablet",
|
900 |
.qdev.name = "usb-tablet",
|
901 |
.usbdevice_name = "tablet",
|
902 |
.qdev.size = sizeof(USBHIDState),
|
903 |
.init = usb_tablet_initfn, |
904 |
.handle_packet = usb_generic_handle_packet, |
905 |
.handle_reset = usb_mouse_handle_reset, |
906 |
.handle_control = usb_hid_handle_control, |
907 |
.handle_data = usb_hid_handle_data, |
908 |
.handle_destroy = usb_hid_handle_destroy, |
909 |
},{ |
910 |
.product_desc = "QEMU USB Mouse",
|
911 |
.qdev.name = "usb-mouse",
|
912 |
.usbdevice_name = "mouse",
|
913 |
.qdev.size = sizeof(USBHIDState),
|
914 |
.init = usb_mouse_initfn, |
915 |
.handle_packet = usb_generic_handle_packet, |
916 |
.handle_reset = usb_mouse_handle_reset, |
917 |
.handle_control = usb_hid_handle_control, |
918 |
.handle_data = usb_hid_handle_data, |
919 |
.handle_destroy = usb_hid_handle_destroy, |
920 |
},{ |
921 |
.product_desc = "QEMU USB Keyboard",
|
922 |
.qdev.name = "usb-kbd",
|
923 |
.usbdevice_name = "keyboard",
|
924 |
.qdev.size = sizeof(USBHIDState),
|
925 |
.init = usb_keyboard_initfn, |
926 |
.handle_packet = usb_generic_handle_packet, |
927 |
.handle_reset = usb_keyboard_handle_reset, |
928 |
.handle_control = usb_hid_handle_control, |
929 |
.handle_data = usb_hid_handle_data, |
930 |
.handle_destroy = usb_hid_handle_destroy, |
931 |
},{ |
932 |
/* end of list */
|
933 |
} |
934 |
}; |
935 |
|
936 |
static void usb_hid_register_devices(void) |
937 |
{ |
938 |
usb_qdev_register_many(hid_info); |
939 |
} |
940 |
device_init(usb_hid_register_devices) |