root / hw / usb-hid.c @ d4970b07
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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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#include "usb-desc.h" |
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#include "qemu-timer.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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/* 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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#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 USBPointerEvent { |
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int32_t xdx, ydy; /* relative iff it's a mouse, otherwise absolute */
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int32_t dz, buttons_state; |
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} USBPointerEvent; |
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#define QUEUE_LENGTH 16 /* should be enough for a triple-click */ |
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#define QUEUE_MASK (QUEUE_LENGTH-1u) |
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#define QUEUE_INCR(v) ((v)++, (v) &= QUEUE_MASK)
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typedef struct USBMouseState { |
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USBPointerEvent queue[QUEUE_LENGTH]; |
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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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uint32_t keycodes[QUEUE_LENGTH]; |
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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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int32_t 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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uint32_t head; /* index into circular queue */
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uint32_t n; |
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int kind;
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int32_t 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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enum {
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STR_MANUFACTURER = 1,
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STR_PRODUCT_MOUSE, |
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STR_PRODUCT_TABLET, |
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STR_PRODUCT_KEYBOARD, |
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STR_SERIALNUMBER, |
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STR_CONFIG_MOUSE, |
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STR_CONFIG_TABLET, |
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STR_CONFIG_KEYBOARD, |
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}; |
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static const USBDescStrings desc_strings = { |
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[STR_MANUFACTURER] = "QEMU " QEMU_VERSION,
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[STR_PRODUCT_MOUSE] = "QEMU USB Mouse",
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[STR_PRODUCT_TABLET] = "QEMU USB Tablet",
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[STR_PRODUCT_KEYBOARD] = "QEMU USB Keyboard",
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[STR_SERIALNUMBER] = "42", /* == remote wakeup works */ |
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[STR_CONFIG_MOUSE] = "HID Mouse",
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[STR_CONFIG_TABLET] = "HID Tablet",
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[STR_CONFIG_KEYBOARD] = "HID Keyboard",
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}; |
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static const USBDescIface desc_iface_mouse = { |
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.bInterfaceNumber = 0,
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.bNumEndpoints = 1,
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.bInterfaceClass = USB_CLASS_HID, |
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.bInterfaceSubClass = 0x01, /* boot */ |
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.bInterfaceProtocol = 0x02,
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.ndesc = 1,
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.descs = (USBDescOther[]) { |
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{ |
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/* HID descriptor */
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.data = (uint8_t[]) { |
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0x09, /* u8 bLength */ |
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USB_DT_HID, /* 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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USB_DT_REPORT, /* u8 type: Report */
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52, 0, /* u16 len */ |
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}, |
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}, |
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}, |
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.eps = (USBDescEndpoint[]) { |
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{ |
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.bEndpointAddress = USB_DIR_IN | 0x01,
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.bmAttributes = USB_ENDPOINT_XFER_INT, |
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.wMaxPacketSize = 4,
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.bInterval = 0x0a,
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}, |
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}, |
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}; |
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static const USBDescIface desc_iface_tablet = { |
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.bInterfaceNumber = 0,
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.bNumEndpoints = 1,
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.bInterfaceClass = USB_CLASS_HID, |
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.bInterfaceSubClass = 0x01, /* boot */ |
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.bInterfaceProtocol = 0x02,
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.ndesc = 1,
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.descs = (USBDescOther[]) { |
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{ |
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/* HID descriptor */
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.data = (uint8_t[]) { |
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0x09, /* u8 bLength */ |
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USB_DT_HID, /* 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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USB_DT_REPORT, /* u8 type: Report */
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74, 0, /* u16 len */ |
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}, |
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}, |
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}, |
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.eps = (USBDescEndpoint[]) { |
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{ |
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.bEndpointAddress = USB_DIR_IN | 0x01,
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.bmAttributes = USB_ENDPOINT_XFER_INT, |
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.wMaxPacketSize = 8,
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.bInterval = 0x0a,
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}, |
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}, |
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}; |
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static const USBDescIface desc_iface_keyboard = { |
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.bInterfaceNumber = 0,
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.bNumEndpoints = 1,
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.bInterfaceClass = USB_CLASS_HID, |
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.bInterfaceSubClass = 0x01, /* boot */ |
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.bInterfaceProtocol = 0x01, /* keyboard */ |
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.ndesc = 1,
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.descs = (USBDescOther[]) { |
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{ |
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/* HID descriptor */
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.data = (uint8_t[]) { |
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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, 0, /* u16 len */ |
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}, |
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}, |
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}, |
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.eps = (USBDescEndpoint[]) { |
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{ |
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.bEndpointAddress = USB_DIR_IN | 0x01,
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.bmAttributes = USB_ENDPOINT_XFER_INT, |
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.wMaxPacketSize = 8,
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.bInterval = 0x0a,
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}, |
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}, |
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}; |
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static const USBDescDevice desc_device_mouse = { |
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.bcdUSB = 0x0100,
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.bMaxPacketSize0 = 8,
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.bNumConfigurations = 1,
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.confs = (USBDescConfig[]) { |
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{ |
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.bNumInterfaces = 1,
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.bConfigurationValue = 1,
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.iConfiguration = STR_CONFIG_MOUSE, |
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.bmAttributes = 0xa0,
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.bMaxPower = 50,
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.nif = 1,
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.ifs = &desc_iface_mouse, |
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}, |
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}, |
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}; |
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static const USBDescDevice desc_device_tablet = { |
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.bcdUSB = 0x0100,
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.bMaxPacketSize0 = 8,
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.bNumConfigurations = 1,
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.confs = (USBDescConfig[]) { |
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{ |
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.bNumInterfaces = 1,
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.bConfigurationValue = 1,
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.iConfiguration = STR_CONFIG_TABLET, |
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.bmAttributes = 0xa0,
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.bMaxPower = 50,
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.nif = 1,
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.ifs = &desc_iface_tablet, |
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}, |
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}, |
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}; |
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static const USBDescDevice desc_device_keyboard = { |
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.bcdUSB = 0x0100,
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.bMaxPacketSize0 = 8,
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.bNumConfigurations = 1,
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.confs = (USBDescConfig[]) { |
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{ |
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.bNumInterfaces = 1,
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.bConfigurationValue = 1,
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.iConfiguration = STR_CONFIG_KEYBOARD, |
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.bmAttributes = 0xa0,
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.bMaxPower = 50,
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.nif = 1,
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.ifs = &desc_iface_keyboard, |
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}, |
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}, |
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}; |
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static const USBDesc desc_mouse = { |
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.id = { |
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.idVendor = 0x0627,
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.idProduct = 0x0001,
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.bcdDevice = 0,
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.iManufacturer = STR_MANUFACTURER, |
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.iProduct = STR_PRODUCT_MOUSE, |
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.iSerialNumber = STR_SERIALNUMBER, |
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}, |
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.full = &desc_device_mouse, |
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.str = desc_strings, |
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}; |
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static const USBDesc desc_tablet = { |
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.id = { |
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.idVendor = 0x0627,
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.idProduct = 0x0001,
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.bcdDevice = 0,
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.iManufacturer = STR_MANUFACTURER, |
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.iProduct = STR_PRODUCT_TABLET, |
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.iSerialNumber = STR_SERIALNUMBER, |
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}, |
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.full = &desc_device_tablet, |
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.str = desc_strings, |
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}; |
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static const USBDesc desc_keyboard = { |
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.id = { |
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.idVendor = 0x0627,
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.idProduct = 0x0001,
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.bcdDevice = 0,
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.iManufacturer = STR_MANUFACTURER, |
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.iProduct = STR_PRODUCT_KEYBOARD, |
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.iSerialNumber = STR_SERIALNUMBER, |
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}, |
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.full = &desc_device_keyboard, |
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.str = desc_strings, |
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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) */ |
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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) */ |
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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) */ |
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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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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, 0xff, 0x7f, /* Physical Maximum (0x7fff) */ |
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0x75, 0x10, /* Report Size (16) */ |
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0x95, 0x02, /* Report Count (2) */ |
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0x81, 0x02, /* Input (Data, Variable, Absolute) */ |
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0x05, 0x01, /* Usage Page (Generic Desktop) */ |
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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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0x35, 0x00, /* Physical Minimum (same as logical) */ |
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0x45, 0x00, /* Physical Maximum (same as logical) */ |
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0x75, 0x08, /* Report Size (8) */ |
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0x95, 0x01, /* Report Count (1) */ |
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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_keyboard_hid_report_descriptor[] = { |
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0x05, 0x01, /* Usage Page (Generic Desktop) */ |
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0x09, 0x06, /* Usage (Keyboard) */ |
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0xa1, 0x01, /* Collection (Application) */ |
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0x75, 0x01, /* Report Size (1) */ |
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0x95, 0x08, /* Report Count (8) */ |
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0x05, 0x07, /* Usage Page (Key Codes) */ |
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0x19, 0xe0, /* Usage Minimum (224) */ |
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0x29, 0xe7, /* Usage Maximum (231) */ |
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0x15, 0x00, /* Logical Minimum (0) */ |
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0x25, 0x01, /* Logical Maximum (1) */ |
374 |
0x81, 0x02, /* Input (Data, Variable, Absolute) */ |
375 |
0x95, 0x01, /* Report Count (1) */ |
376 |
0x75, 0x08, /* Report Size (8) */ |
377 |
0x81, 0x01, /* Input (Constant) */ |
378 |
0x95, 0x05, /* Report Count (5) */ |
379 |
0x75, 0x01, /* Report Size (1) */ |
380 |
0x05, 0x08, /* Usage Page (LEDs) */ |
381 |
0x19, 0x01, /* Usage Minimum (1) */ |
382 |
0x29, 0x05, /* Usage Maximum (5) */ |
383 |
0x91, 0x02, /* Output (Data, Variable, Absolute) */ |
384 |
0x95, 0x01, /* Report Count (1) */ |
385 |
0x75, 0x03, /* Report Size (3) */ |
386 |
0x91, 0x01, /* Output (Constant) */ |
387 |
0x95, 0x06, /* Report Count (6) */ |
388 |
0x75, 0x08, /* Report Size (8) */ |
389 |
0x15, 0x00, /* Logical Minimum (0) */ |
390 |
0x25, 0xff, /* Logical Maximum (255) */ |
391 |
0x05, 0x07, /* Usage Page (Key Codes) */ |
392 |
0x19, 0x00, /* Usage Minimum (0) */ |
393 |
0x29, 0xff, /* Usage Maximum (255) */ |
394 |
0x81, 0x00, /* Input (Data, Array) */ |
395 |
0xc0, /* End Collection */ |
396 |
}; |
397 |
|
398 |
#define USB_HID_USAGE_ERROR_ROLLOVER 0x01 |
399 |
#define USB_HID_USAGE_POSTFAIL 0x02 |
400 |
#define USB_HID_USAGE_ERROR_UNDEFINED 0x03 |
401 |
|
402 |
/* Indices are QEMU keycodes, values are from HID Usage Table. Indices
|
403 |
* 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] = { |
405 |
0x00, 0x29, 0x1e, 0x1f, 0x20, 0x21, 0x22, 0x23, |
406 |
0x24, 0x25, 0x26, 0x27, 0x2d, 0x2e, 0x2a, 0x2b, |
407 |
0x14, 0x1a, 0x08, 0x15, 0x17, 0x1c, 0x18, 0x0c, |
408 |
0x12, 0x13, 0x2f, 0x30, 0x28, 0xe0, 0x04, 0x16, |
409 |
0x07, 0x09, 0x0a, 0x0b, 0x0d, 0x0e, 0x0f, 0x33, |
410 |
0x34, 0x35, 0xe1, 0x31, 0x1d, 0x1b, 0x06, 0x19, |
411 |
0x05, 0x11, 0x10, 0x36, 0x37, 0x38, 0xe5, 0x55, |
412 |
0xe2, 0x2c, 0x32, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, |
413 |
0x3f, 0x40, 0x41, 0x42, 0x43, 0x53, 0x47, 0x5f, |
414 |
0x60, 0x61, 0x56, 0x5c, 0x5d, 0x5e, 0x57, 0x59, |
415 |
0x5a, 0x5b, 0x62, 0x63, 0x00, 0x00, 0x00, 0x44, |
416 |
0x45, 0x68, 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, |
417 |
0xe8, 0xe9, 0x71, 0x72, 0x73, 0x00, 0x00, 0x00, |
418 |
0x00, 0x00, 0x00, 0x85, 0x00, 0x00, 0x00, 0x00, |
419 |
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, |
420 |
0x00, 0x00, 0x00, 0x00, 0x00, 0xe3, 0xe7, 0x65, |
421 |
|
422 |
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, |
423 |
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, |
424 |
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, |
425 |
0x00, 0x00, 0x00, 0x00, 0x58, 0xe4, 0x00, 0x00, |
426 |
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, |
427 |
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, |
428 |
0x00, 0x00, 0x00, 0x00, 0x00, 0x54, 0x00, 0x46, |
429 |
0xe6, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, |
430 |
0x00, 0x00, 0x00, 0x00, 0x00, 0x48, 0x00, 0x4a, |
431 |
0x52, 0x4b, 0x00, 0x50, 0x00, 0x4f, 0x00, 0x4d, |
432 |
0x51, 0x4e, 0x49, 0x4c, 0x00, 0x00, 0x00, 0x00, |
433 |
0x00, 0x00, 0x00, 0xe3, 0xe7, 0x65, 0x00, 0x00, |
434 |
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, |
435 |
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, |
436 |
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, |
437 |
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, |
438 |
}; |
439 |
|
440 |
static void usb_hid_changed(USBHIDState *hs) |
441 |
{ |
442 |
hs->changed = 1;
|
443 |
|
444 |
if (hs->datain)
|
445 |
hs->datain(hs->datain_opaque); |
446 |
|
447 |
usb_wakeup(&hs->dev); |
448 |
} |
449 |
|
450 |
static void usb_pointer_event_clear(USBPointerEvent *e, int buttons) { |
451 |
e->xdx = e->ydy = e->dz = 0;
|
452 |
e->buttons_state = buttons; |
453 |
} |
454 |
|
455 |
static void usb_pointer_event_combine(USBPointerEvent *e, int xyrel, |
456 |
int x1, int y1, int z1) { |
457 |
if (xyrel) {
|
458 |
e->xdx += x1; |
459 |
e->ydy += y1; |
460 |
} else {
|
461 |
e->xdx = x1; |
462 |
e->ydy = y1; |
463 |
} |
464 |
e->dz += z1; |
465 |
} |
466 |
|
467 |
static void usb_pointer_event(void *opaque, |
468 |
int x1, int y1, int z1, int buttons_state) |
469 |
{ |
470 |
USBHIDState *hs = opaque; |
471 |
USBMouseState *s = &hs->ptr; |
472 |
unsigned use_slot = (hs->head + hs->n - 1) & QUEUE_MASK; |
473 |
unsigned previous_slot = (use_slot - 1) & QUEUE_MASK; |
474 |
|
475 |
/* We combine events where feasible to keep the queue small. We shouldn't
|
476 |
* combine anything with the first event of a particular button state, as
|
477 |
* that would change the location of the button state change. When the
|
478 |
* queue is empty, a second event is needed because we don't know if
|
479 |
* the first event changed the button state. */
|
480 |
if (hs->n == QUEUE_LENGTH) {
|
481 |
/* Queue full. Discard old button state, combine motion normally. */
|
482 |
s->queue[use_slot].buttons_state = buttons_state; |
483 |
} else if (hs->n < 2 || |
484 |
s->queue[use_slot].buttons_state != buttons_state || |
485 |
s->queue[previous_slot].buttons_state != s->queue[use_slot].buttons_state) { |
486 |
/* Cannot or should not combine, so add an empty item to the queue. */
|
487 |
QUEUE_INCR(use_slot); |
488 |
hs->n++; |
489 |
usb_pointer_event_clear(&s->queue[use_slot], buttons_state); |
490 |
} |
491 |
usb_pointer_event_combine(&s->queue[use_slot], |
492 |
hs->kind == USB_MOUSE, |
493 |
x1, y1, z1); |
494 |
usb_hid_changed(hs); |
495 |
} |
496 |
|
497 |
static void usb_keyboard_event(void *opaque, int keycode) |
498 |
{ |
499 |
USBHIDState *hs = opaque; |
500 |
USBKeyboardState *s = &hs->kbd; |
501 |
int slot;
|
502 |
|
503 |
if (hs->n == QUEUE_LENGTH) {
|
504 |
fprintf(stderr, "usb-kbd: warning: key event queue full\n");
|
505 |
return;
|
506 |
} |
507 |
slot = (hs->head + hs->n) & QUEUE_MASK; hs->n++; |
508 |
s->keycodes[slot] = keycode; |
509 |
usb_hid_changed(hs); |
510 |
} |
511 |
|
512 |
static void usb_keyboard_process_keycode(USBHIDState *hs) |
513 |
{ |
514 |
USBKeyboardState *s = &hs->kbd; |
515 |
uint8_t hid_code, key; |
516 |
int i, keycode, slot;
|
517 |
|
518 |
if (hs->n == 0) { |
519 |
return;
|
520 |
} |
521 |
slot = hs->head & QUEUE_MASK; QUEUE_INCR(hs->head); hs->n--; |
522 |
keycode = s->keycodes[slot]; |
523 |
|
524 |
key = keycode & 0x7f;
|
525 |
hid_code = usb_hid_usage_keys[key | ((s->modifiers >> 1) & (1 << 7))]; |
526 |
s->modifiers &= ~(1 << 8); |
527 |
|
528 |
switch (hid_code) {
|
529 |
case 0x00: |
530 |
return;
|
531 |
|
532 |
case 0xe0: |
533 |
if (s->modifiers & (1 << 9)) { |
534 |
s->modifiers ^= 3 << 8; |
535 |
usb_hid_changed(hs); |
536 |
return;
|
537 |
} |
538 |
case 0xe1 ... 0xe7: |
539 |
if (keycode & (1 << 7)) { |
540 |
s->modifiers &= ~(1 << (hid_code & 0x0f)); |
541 |
usb_hid_changed(hs); |
542 |
return;
|
543 |
} |
544 |
case 0xe8 ... 0xef: |
545 |
s->modifiers |= 1 << (hid_code & 0x0f); |
546 |
usb_hid_changed(hs); |
547 |
return;
|
548 |
} |
549 |
|
550 |
if (keycode & (1 << 7)) { |
551 |
for (i = s->keys - 1; i >= 0; i --) |
552 |
if (s->key[i] == hid_code) {
|
553 |
s->key[i] = s->key[-- s->keys]; |
554 |
s->key[s->keys] = 0x00;
|
555 |
break;
|
556 |
} |
557 |
if (i < 0) |
558 |
return;
|
559 |
} else {
|
560 |
for (i = s->keys - 1; i >= 0; i --) |
561 |
if (s->key[i] == hid_code)
|
562 |
break;
|
563 |
if (i < 0) { |
564 |
if (s->keys < sizeof(s->key)) |
565 |
s->key[s->keys ++] = hid_code; |
566 |
} else
|
567 |
return;
|
568 |
} |
569 |
} |
570 |
|
571 |
static inline int int_clamp(int val, int vmin, int vmax) |
572 |
{ |
573 |
if (val < vmin)
|
574 |
return vmin;
|
575 |
else if (val > vmax) |
576 |
return vmax;
|
577 |
else
|
578 |
return val;
|
579 |
} |
580 |
|
581 |
static int usb_pointer_poll(USBHIDState *hs, uint8_t *buf, int len) |
582 |
{ |
583 |
int dx, dy, dz, b, l;
|
584 |
int index;
|
585 |
USBMouseState *s = &hs->ptr; |
586 |
USBPointerEvent *e; |
587 |
|
588 |
if (!s->mouse_grabbed) {
|
589 |
qemu_activate_mouse_event_handler(s->eh_entry); |
590 |
s->mouse_grabbed = 1;
|
591 |
} |
592 |
|
593 |
/* When the buffer is empty, return the last event. Relative
|
594 |
movements will all be zero. */
|
595 |
index = (hs->n ? hs->head : hs->head - 1);
|
596 |
e = &s->queue[index & QUEUE_MASK]; |
597 |
|
598 |
if (hs->kind == USB_MOUSE) {
|
599 |
dx = int_clamp(e->xdx, -127, 127); |
600 |
dy = int_clamp(e->ydy, -127, 127); |
601 |
e->xdx -= dx; |
602 |
e->ydy -= dy; |
603 |
} else {
|
604 |
dx = e->xdx; |
605 |
dy = e->ydy; |
606 |
} |
607 |
dz = int_clamp(e->dz, -127, 127); |
608 |
e->dz -= dz; |
609 |
|
610 |
b = 0;
|
611 |
if (e->buttons_state & MOUSE_EVENT_LBUTTON)
|
612 |
b |= 0x01;
|
613 |
if (e->buttons_state & MOUSE_EVENT_RBUTTON)
|
614 |
b |= 0x02;
|
615 |
if (e->buttons_state & MOUSE_EVENT_MBUTTON)
|
616 |
b |= 0x04;
|
617 |
|
618 |
if (hs->n &&
|
619 |
!e->dz && |
620 |
(hs->kind == USB_TABLET || (!e->xdx && !e->ydy))) { |
621 |
/* that deals with this event */
|
622 |
QUEUE_INCR(hs->head); |
623 |
hs->n--; |
624 |
} |
625 |
|
626 |
/* Appears we have to invert the wheel direction */
|
627 |
dz = 0 - dz;
|
628 |
l = 0;
|
629 |
switch (hs->kind) {
|
630 |
case USB_MOUSE:
|
631 |
if (len > l)
|
632 |
buf[l++] = b; |
633 |
if (len > l)
|
634 |
buf[l++] = dx; |
635 |
if (len > l)
|
636 |
buf[l++] = dy; |
637 |
if (len > l)
|
638 |
buf[l++] = dz; |
639 |
break;
|
640 |
|
641 |
case USB_TABLET:
|
642 |
if (len > l)
|
643 |
buf[l++] = b; |
644 |
if (len > l)
|
645 |
buf[l++] = dx & 0xff;
|
646 |
if (len > l)
|
647 |
buf[l++] = dx >> 8;
|
648 |
if (len > l)
|
649 |
buf[l++] = dy & 0xff;
|
650 |
if (len > l)
|
651 |
buf[l++] = dy >> 8;
|
652 |
if (len > l)
|
653 |
buf[l++] = dz; |
654 |
break;
|
655 |
|
656 |
default:
|
657 |
abort(); |
658 |
} |
659 |
|
660 |
return l;
|
661 |
} |
662 |
|
663 |
static int usb_keyboard_poll(USBHIDState *hs, uint8_t *buf, int len) |
664 |
{ |
665 |
USBKeyboardState *s = &hs->kbd; |
666 |
if (len < 2) |
667 |
return 0; |
668 |
|
669 |
usb_keyboard_process_keycode(hs); |
670 |
|
671 |
buf[0] = s->modifiers & 0xff; |
672 |
buf[1] = 0; |
673 |
if (s->keys > 6) |
674 |
memset(buf + 2, USB_HID_USAGE_ERROR_ROLLOVER, MIN(8, len) - 2); |
675 |
else
|
676 |
memcpy(buf + 2, s->key, MIN(8, len) - 2); |
677 |
|
678 |
return MIN(8, len); |
679 |
} |
680 |
|
681 |
static int usb_keyboard_write(USBKeyboardState *s, uint8_t *buf, int len) |
682 |
{ |
683 |
if (len > 0) { |
684 |
int ledstate = 0; |
685 |
/* 0x01: Num Lock LED
|
686 |
* 0x02: Caps Lock LED
|
687 |
* 0x04: Scroll Lock LED
|
688 |
* 0x08: Compose LED
|
689 |
* 0x10: Kana LED */
|
690 |
s->leds = buf[0];
|
691 |
if (s->leds & 0x04) |
692 |
ledstate |= QEMU_SCROLL_LOCK_LED; |
693 |
if (s->leds & 0x01) |
694 |
ledstate |= QEMU_NUM_LOCK_LED; |
695 |
if (s->leds & 0x02) |
696 |
ledstate |= QEMU_CAPS_LOCK_LED; |
697 |
kbd_put_ledstate(ledstate); |
698 |
} |
699 |
return 0; |
700 |
} |
701 |
|
702 |
static void usb_mouse_handle_reset(USBDevice *dev) |
703 |
{ |
704 |
USBHIDState *s = (USBHIDState *)dev; |
705 |
|
706 |
memset(s->ptr.queue, 0, sizeof (s->ptr.queue)); |
707 |
s->head = 0;
|
708 |
s->n = 0;
|
709 |
s->protocol = 1;
|
710 |
} |
711 |
|
712 |
static void usb_keyboard_handle_reset(USBDevice *dev) |
713 |
{ |
714 |
USBHIDState *s = (USBHIDState *)dev; |
715 |
|
716 |
qemu_add_kbd_event_handler(usb_keyboard_event, s); |
717 |
memset(s->kbd.keycodes, 0, sizeof (s->kbd.keycodes)); |
718 |
s->head = 0;
|
719 |
s->n = 0;
|
720 |
memset(s->kbd.key, 0, sizeof (s->kbd.key)); |
721 |
s->kbd.keys = 0;
|
722 |
s->protocol = 1;
|
723 |
} |
724 |
|
725 |
static void usb_hid_set_next_idle(USBHIDState *s, int64_t curtime) |
726 |
{ |
727 |
s->next_idle_clock = curtime + (get_ticks_per_sec() * s->idle * 4) / 1000; |
728 |
} |
729 |
|
730 |
static int usb_hid_handle_control(USBDevice *dev, USBPacket *p, |
731 |
int request, int value, int index, int length, uint8_t *data) |
732 |
{ |
733 |
USBHIDState *s = (USBHIDState *)dev; |
734 |
int ret;
|
735 |
|
736 |
ret = usb_desc_handle_control(dev, p, request, value, index, length, data); |
737 |
if (ret >= 0) { |
738 |
return ret;
|
739 |
} |
740 |
|
741 |
ret = 0;
|
742 |
switch(request) {
|
743 |
case DeviceRequest | USB_REQ_GET_INTERFACE:
|
744 |
data[0] = 0; |
745 |
ret = 1;
|
746 |
break;
|
747 |
case DeviceOutRequest | USB_REQ_SET_INTERFACE:
|
748 |
ret = 0;
|
749 |
break;
|
750 |
/* hid specific requests */
|
751 |
case InterfaceRequest | USB_REQ_GET_DESCRIPTOR:
|
752 |
switch(value >> 8) { |
753 |
case 0x22: |
754 |
if (s->kind == USB_MOUSE) {
|
755 |
memcpy(data, qemu_mouse_hid_report_descriptor, |
756 |
sizeof(qemu_mouse_hid_report_descriptor));
|
757 |
ret = sizeof(qemu_mouse_hid_report_descriptor);
|
758 |
} else if (s->kind == USB_TABLET) { |
759 |
memcpy(data, qemu_tablet_hid_report_descriptor, |
760 |
sizeof(qemu_tablet_hid_report_descriptor));
|
761 |
ret = sizeof(qemu_tablet_hid_report_descriptor);
|
762 |
} else if (s->kind == USB_KEYBOARD) { |
763 |
memcpy(data, qemu_keyboard_hid_report_descriptor, |
764 |
sizeof(qemu_keyboard_hid_report_descriptor));
|
765 |
ret = sizeof(qemu_keyboard_hid_report_descriptor);
|
766 |
} |
767 |
break;
|
768 |
default:
|
769 |
goto fail;
|
770 |
} |
771 |
break;
|
772 |
case GET_REPORT:
|
773 |
if (s->kind == USB_MOUSE || s->kind == USB_TABLET)
|
774 |
ret = usb_pointer_poll(s, data, length); |
775 |
else if (s->kind == USB_KEYBOARD) |
776 |
ret = usb_keyboard_poll(s, data, length); |
777 |
break;
|
778 |
case SET_REPORT:
|
779 |
if (s->kind == USB_KEYBOARD)
|
780 |
ret = usb_keyboard_write(&s->kbd, data, length); |
781 |
else
|
782 |
goto fail;
|
783 |
break;
|
784 |
case GET_PROTOCOL:
|
785 |
if (s->kind != USB_KEYBOARD)
|
786 |
goto fail;
|
787 |
ret = 1;
|
788 |
data[0] = s->protocol;
|
789 |
break;
|
790 |
case SET_PROTOCOL:
|
791 |
if (s->kind != USB_KEYBOARD)
|
792 |
goto fail;
|
793 |
ret = 0;
|
794 |
s->protocol = value; |
795 |
break;
|
796 |
case GET_IDLE:
|
797 |
ret = 1;
|
798 |
data[0] = s->idle;
|
799 |
break;
|
800 |
case SET_IDLE:
|
801 |
s->idle = (uint8_t) (value >> 8);
|
802 |
usb_hid_set_next_idle(s, qemu_get_clock_ns(vm_clock)); |
803 |
ret = 0;
|
804 |
break;
|
805 |
default:
|
806 |
fail:
|
807 |
ret = USB_RET_STALL; |
808 |
break;
|
809 |
} |
810 |
return ret;
|
811 |
} |
812 |
|
813 |
static int usb_hid_handle_data(USBDevice *dev, USBPacket *p) |
814 |
{ |
815 |
USBHIDState *s = (USBHIDState *)dev; |
816 |
int ret = 0; |
817 |
|
818 |
switch(p->pid) {
|
819 |
case USB_TOKEN_IN:
|
820 |
if (p->devep == 1) { |
821 |
int64_t curtime = qemu_get_clock_ns(vm_clock); |
822 |
if (!s->changed && (!s->idle || s->next_idle_clock - curtime > 0)) |
823 |
return USB_RET_NAK;
|
824 |
usb_hid_set_next_idle(s, curtime); |
825 |
if (s->kind == USB_MOUSE || s->kind == USB_TABLET) {
|
826 |
ret = usb_pointer_poll(s, p->data, p->len); |
827 |
} |
828 |
else if (s->kind == USB_KEYBOARD) { |
829 |
ret = usb_keyboard_poll(s, p->data, p->len); |
830 |
} |
831 |
s->changed = s->n > 0;
|
832 |
} else {
|
833 |
goto fail;
|
834 |
} |
835 |
break;
|
836 |
case USB_TOKEN_OUT:
|
837 |
default:
|
838 |
fail:
|
839 |
ret = USB_RET_STALL; |
840 |
break;
|
841 |
} |
842 |
return ret;
|
843 |
} |
844 |
|
845 |
static void usb_hid_handle_destroy(USBDevice *dev) |
846 |
{ |
847 |
USBHIDState *s = (USBHIDState *)dev; |
848 |
|
849 |
switch(s->kind) {
|
850 |
case USB_KEYBOARD:
|
851 |
qemu_remove_kbd_event_handler(); |
852 |
break;
|
853 |
default:
|
854 |
qemu_remove_mouse_event_handler(s->ptr.eh_entry); |
855 |
} |
856 |
} |
857 |
|
858 |
static int usb_hid_initfn(USBDevice *dev, int kind) |
859 |
{ |
860 |
USBHIDState *s = DO_UPCAST(USBHIDState, dev, dev); |
861 |
|
862 |
usb_desc_init(dev); |
863 |
s->kind = kind; |
864 |
|
865 |
if (s->kind == USB_MOUSE) {
|
866 |
s->ptr.eh_entry = qemu_add_mouse_event_handler(usb_pointer_event, s, |
867 |
0, "QEMU USB Mouse"); |
868 |
} else if (s->kind == USB_TABLET) { |
869 |
s->ptr.eh_entry = qemu_add_mouse_event_handler(usb_pointer_event, s, |
870 |
1, "QEMU USB Tablet"); |
871 |
} |
872 |
|
873 |
/* Force poll routine to be run and grab input the first time. */
|
874 |
s->changed = 1;
|
875 |
return 0; |
876 |
} |
877 |
|
878 |
static int usb_tablet_initfn(USBDevice *dev) |
879 |
{ |
880 |
return usb_hid_initfn(dev, USB_TABLET);
|
881 |
} |
882 |
|
883 |
static int usb_mouse_initfn(USBDevice *dev) |
884 |
{ |
885 |
return usb_hid_initfn(dev, USB_MOUSE);
|
886 |
} |
887 |
|
888 |
static int usb_keyboard_initfn(USBDevice *dev) |
889 |
{ |
890 |
return usb_hid_initfn(dev, USB_KEYBOARD);
|
891 |
} |
892 |
|
893 |
void usb_hid_datain_cb(USBDevice *dev, void *opaque, void (*datain)(void *)) |
894 |
{ |
895 |
USBHIDState *s = (USBHIDState *)dev; |
896 |
|
897 |
s->datain_opaque = opaque; |
898 |
s->datain = datain; |
899 |
} |
900 |
|
901 |
static int usb_hid_post_load(void *opaque, int version_id) |
902 |
{ |
903 |
USBHIDState *s = opaque; |
904 |
|
905 |
if (s->idle) {
|
906 |
usb_hid_set_next_idle(s, qemu_get_clock_ns(vm_clock)); |
907 |
} |
908 |
return 0; |
909 |
} |
910 |
|
911 |
static const VMStateDescription vmstate_usb_ptr_queue = { |
912 |
.name = "usb-ptr-queue",
|
913 |
.version_id = 1,
|
914 |
.minimum_version_id = 1,
|
915 |
.fields = (VMStateField []) { |
916 |
VMSTATE_INT32(xdx, USBPointerEvent), |
917 |
VMSTATE_INT32(ydy, USBPointerEvent), |
918 |
VMSTATE_INT32(dz, USBPointerEvent), |
919 |
VMSTATE_INT32(buttons_state, USBPointerEvent), |
920 |
VMSTATE_END_OF_LIST() |
921 |
} |
922 |
}; |
923 |
static const VMStateDescription vmstate_usb_ptr = { |
924 |
.name = "usb-ptr",
|
925 |
.version_id = 1,
|
926 |
.minimum_version_id = 1,
|
927 |
.post_load = usb_hid_post_load, |
928 |
.fields = (VMStateField []) { |
929 |
VMSTATE_USB_DEVICE(dev, USBHIDState), |
930 |
VMSTATE_STRUCT_ARRAY(ptr.queue, USBHIDState, QUEUE_LENGTH, 0,
|
931 |
vmstate_usb_ptr_queue, USBPointerEvent), |
932 |
VMSTATE_UINT32(head, USBHIDState), |
933 |
VMSTATE_UINT32(n, USBHIDState), |
934 |
VMSTATE_INT32(protocol, USBHIDState), |
935 |
VMSTATE_UINT8(idle, USBHIDState), |
936 |
VMSTATE_END_OF_LIST() |
937 |
} |
938 |
}; |
939 |
|
940 |
static const VMStateDescription vmstate_usb_kbd = { |
941 |
.name = "usb-kbd",
|
942 |
.version_id = 1,
|
943 |
.minimum_version_id = 1,
|
944 |
.post_load = usb_hid_post_load, |
945 |
.fields = (VMStateField []) { |
946 |
VMSTATE_USB_DEVICE(dev, USBHIDState), |
947 |
VMSTATE_UINT32_ARRAY(kbd.keycodes, USBHIDState, QUEUE_LENGTH), |
948 |
VMSTATE_UINT32(head, USBHIDState), |
949 |
VMSTATE_UINT32(n, USBHIDState), |
950 |
VMSTATE_UINT16(kbd.modifiers, USBHIDState), |
951 |
VMSTATE_UINT8(kbd.leds, USBHIDState), |
952 |
VMSTATE_UINT8_ARRAY(kbd.key, USBHIDState, 16),
|
953 |
VMSTATE_INT32(kbd.keys, USBHIDState), |
954 |
VMSTATE_INT32(protocol, USBHIDState), |
955 |
VMSTATE_UINT8(idle, USBHIDState), |
956 |
VMSTATE_END_OF_LIST() |
957 |
} |
958 |
}; |
959 |
|
960 |
static struct USBDeviceInfo hid_info[] = { |
961 |
{ |
962 |
.product_desc = "QEMU USB Tablet",
|
963 |
.qdev.name = "usb-tablet",
|
964 |
.usbdevice_name = "tablet",
|
965 |
.qdev.size = sizeof(USBHIDState),
|
966 |
.qdev.vmsd = &vmstate_usb_ptr, |
967 |
.usb_desc = &desc_tablet, |
968 |
.init = usb_tablet_initfn, |
969 |
.handle_packet = usb_generic_handle_packet, |
970 |
.handle_reset = usb_mouse_handle_reset, |
971 |
.handle_control = usb_hid_handle_control, |
972 |
.handle_data = usb_hid_handle_data, |
973 |
.handle_destroy = usb_hid_handle_destroy, |
974 |
},{ |
975 |
.product_desc = "QEMU USB Mouse",
|
976 |
.qdev.name = "usb-mouse",
|
977 |
.usbdevice_name = "mouse",
|
978 |
.qdev.size = sizeof(USBHIDState),
|
979 |
.qdev.vmsd = &vmstate_usb_ptr, |
980 |
.usb_desc = &desc_mouse, |
981 |
.init = usb_mouse_initfn, |
982 |
.handle_packet = usb_generic_handle_packet, |
983 |
.handle_reset = usb_mouse_handle_reset, |
984 |
.handle_control = usb_hid_handle_control, |
985 |
.handle_data = usb_hid_handle_data, |
986 |
.handle_destroy = usb_hid_handle_destroy, |
987 |
},{ |
988 |
.product_desc = "QEMU USB Keyboard",
|
989 |
.qdev.name = "usb-kbd",
|
990 |
.usbdevice_name = "keyboard",
|
991 |
.qdev.size = sizeof(USBHIDState),
|
992 |
.qdev.vmsd = &vmstate_usb_kbd, |
993 |
.usb_desc = &desc_keyboard, |
994 |
.init = usb_keyboard_initfn, |
995 |
.handle_packet = usb_generic_handle_packet, |
996 |
.handle_reset = usb_keyboard_handle_reset, |
997 |
.handle_control = usb_hid_handle_control, |
998 |
.handle_data = usb_hid_handle_data, |
999 |
.handle_destroy = usb_hid_handle_destroy, |
1000 |
},{ |
1001 |
/* end of list */
|
1002 |
} |
1003 |
}; |
1004 |
|
1005 |
static void usb_hid_register_devices(void) |
1006 |
{ |
1007 |
usb_qdev_register_many(hid_info); |
1008 |
} |
1009 |
device_init(usb_hid_register_devices) |