mirror of https://gitee.com/openkylin/qemu.git
1035 lines
32 KiB
C
1035 lines
32 KiB
C
/*
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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 HID_MOUSE 1
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#define HID_TABLET 2
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#define HID_KEYBOARD 3
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typedef struct HIDPointerEvent {
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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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} HIDPointerEvent;
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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 HIDMouseState {
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HIDPointerEvent queue[QUEUE_LENGTH];
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int mouse_grabbed;
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QEMUPutMouseEntry *eh_entry;
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} HIDMouseState;
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typedef struct HIDKeyboardState {
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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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} HIDKeyboardState;
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typedef struct HIDState {
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union {
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HIDMouseState ptr;
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HIDKeyboardState 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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} HIDState;
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typedef struct USBHIDState {
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USBDevice dev;
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HIDState hid;
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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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.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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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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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) */
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0x81, 0x02, /* Input (Data, Variable, Absolute) */
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0x95, 0x01, /* Report Count (1) */
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0x75, 0x08, /* Report Size (8) */
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0x81, 0x01, /* Input (Constant) */
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0x95, 0x05, /* Report Count (5) */
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0x75, 0x01, /* Report Size (1) */
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0x05, 0x08, /* Usage Page (LEDs) */
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0x19, 0x01, /* Usage Minimum (1) */
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0x29, 0x05, /* Usage Maximum (5) */
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0x91, 0x02, /* Output (Data, Variable, Absolute) */
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0x95, 0x01, /* Report Count (1) */
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0x75, 0x03, /* Report Size (3) */
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0x91, 0x01, /* Output (Constant) */
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0x95, 0x06, /* Report Count (6) */
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0x75, 0x08, /* Report Size (8) */
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0x15, 0x00, /* Logical Minimum (0) */
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0x25, 0xff, /* Logical Maximum (255) */
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0x05, 0x07, /* Usage Page (Key Codes) */
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0x19, 0x00, /* Usage Minimum (0) */
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0x29, 0xff, /* Usage Maximum (255) */
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0x81, 0x00, /* Input (Data, Array) */
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0xc0, /* End Collection */
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};
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#define USB_HID_USAGE_ERROR_ROLLOVER 0x01
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#define USB_HID_USAGE_POSTFAIL 0x02
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#define USB_HID_USAGE_ERROR_UNDEFINED 0x03
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/* Indices are QEMU keycodes, values are from HID Usage Table. Indices
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* 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] = {
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0x00, 0x29, 0x1e, 0x1f, 0x20, 0x21, 0x22, 0x23,
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0x24, 0x25, 0x26, 0x27, 0x2d, 0x2e, 0x2a, 0x2b,
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0x14, 0x1a, 0x08, 0x15, 0x17, 0x1c, 0x18, 0x0c,
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0x12, 0x13, 0x2f, 0x30, 0x28, 0xe0, 0x04, 0x16,
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0x07, 0x09, 0x0a, 0x0b, 0x0d, 0x0e, 0x0f, 0x33,
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0x34, 0x35, 0xe1, 0x31, 0x1d, 0x1b, 0x06, 0x19,
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0x05, 0x11, 0x10, 0x36, 0x37, 0x38, 0xe5, 0x55,
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0xe2, 0x2c, 0x32, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e,
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0x3f, 0x40, 0x41, 0x42, 0x43, 0x53, 0x47, 0x5f,
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0x60, 0x61, 0x56, 0x5c, 0x5d, 0x5e, 0x57, 0x59,
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0x5a, 0x5b, 0x62, 0x63, 0x00, 0x00, 0x00, 0x44,
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0x45, 0x68, 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e,
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0xe8, 0xe9, 0x71, 0x72, 0x73, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x85, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0xe3, 0xe7, 0x65,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x58, 0xe4, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x54, 0x00, 0x46,
|
|
0xe6, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
|
0x00, 0x00, 0x00, 0x00, 0x00, 0x48, 0x00, 0x4a,
|
|
0x52, 0x4b, 0x00, 0x50, 0x00, 0x4f, 0x00, 0x4d,
|
|
0x51, 0x4e, 0x49, 0x4c, 0x00, 0x00, 0x00, 0x00,
|
|
0x00, 0x00, 0x00, 0xe3, 0xe7, 0x65, 0x00, 0x00,
|
|
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
|
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
|
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
|
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
|
};
|
|
|
|
static void usb_hid_changed(USBHIDState *hs)
|
|
{
|
|
hs->changed = 1;
|
|
|
|
if (hs->datain)
|
|
hs->datain(hs->datain_opaque);
|
|
|
|
usb_wakeup(&hs->dev);
|
|
}
|
|
|
|
static void hid_pointer_event_clear(HIDPointerEvent *e, int buttons)
|
|
{
|
|
e->xdx = e->ydy = e->dz = 0;
|
|
e->buttons_state = buttons;
|
|
}
|
|
|
|
static void hid_pointer_event_combine(HIDPointerEvent *e, int xyrel,
|
|
int x1, int y1, int z1) {
|
|
if (xyrel) {
|
|
e->xdx += x1;
|
|
e->ydy += y1;
|
|
} else {
|
|
e->xdx = x1;
|
|
e->ydy = y1;
|
|
/* Windows drivers do not like the 0/0 position and ignore such
|
|
* events. */
|
|
if (!(x1 | y1)) {
|
|
x1 = 1;
|
|
}
|
|
}
|
|
e->dz += z1;
|
|
}
|
|
|
|
static void usb_pointer_event(void *opaque,
|
|
int x1, int y1, int z1, int buttons_state)
|
|
{
|
|
USBHIDState *us = opaque;
|
|
HIDState *hs = &us->hid;
|
|
unsigned use_slot = (hs->head + hs->n - 1) & QUEUE_MASK;
|
|
unsigned previous_slot = (use_slot - 1) & QUEUE_MASK;
|
|
|
|
/* We combine events where feasible to keep the queue small. We shouldn't
|
|
* combine anything with the first event of a particular button state, as
|
|
* that would change the location of the button state change. When the
|
|
* queue is empty, a second event is needed because we don't know if
|
|
* the first event changed the button state. */
|
|
if (hs->n == QUEUE_LENGTH) {
|
|
/* Queue full. Discard old button state, combine motion normally. */
|
|
hs->ptr.queue[use_slot].buttons_state = buttons_state;
|
|
} else if (hs->n < 2 ||
|
|
hs->ptr.queue[use_slot].buttons_state != buttons_state ||
|
|
hs->ptr.queue[previous_slot].buttons_state !=
|
|
hs->ptr.queue[use_slot].buttons_state) {
|
|
/* Cannot or should not combine, so add an empty item to the queue. */
|
|
QUEUE_INCR(use_slot);
|
|
hs->n++;
|
|
hid_pointer_event_clear(&hs->ptr.queue[use_slot], buttons_state);
|
|
}
|
|
hid_pointer_event_combine(&hs->ptr.queue[use_slot],
|
|
hs->kind == HID_MOUSE,
|
|
x1, y1, z1);
|
|
usb_hid_changed(us);
|
|
}
|
|
|
|
static void usb_keyboard_event(void *opaque, int keycode)
|
|
{
|
|
USBHIDState *us = opaque;
|
|
HIDState *hs = &us->hid;
|
|
int slot;
|
|
|
|
if (hs->n == QUEUE_LENGTH) {
|
|
fprintf(stderr, "usb-kbd: warning: key event queue full\n");
|
|
return;
|
|
}
|
|
slot = (hs->head + hs->n) & QUEUE_MASK; hs->n++;
|
|
hs->kbd.keycodes[slot] = keycode;
|
|
usb_hid_changed(us);
|
|
}
|
|
|
|
static void hid_keyboard_process_keycode(HIDState *hs)
|
|
{
|
|
uint8_t hid_code, key;
|
|
int i, keycode, slot;
|
|
|
|
if (hs->n == 0) {
|
|
return;
|
|
}
|
|
slot = hs->head & QUEUE_MASK; QUEUE_INCR(hs->head); hs->n--;
|
|
keycode = hs->kbd.keycodes[slot];
|
|
|
|
key = keycode & 0x7f;
|
|
hid_code = usb_hid_usage_keys[key | ((hs->kbd.modifiers >> 1) & (1 << 7))];
|
|
hs->kbd.modifiers &= ~(1 << 8);
|
|
|
|
switch (hid_code) {
|
|
case 0x00:
|
|
return;
|
|
|
|
case 0xe0:
|
|
if (hs->kbd.modifiers & (1 << 9)) {
|
|
hs->kbd.modifiers ^= 3 << 8;
|
|
return;
|
|
}
|
|
case 0xe1 ... 0xe7:
|
|
if (keycode & (1 << 7)) {
|
|
hs->kbd.modifiers &= ~(1 << (hid_code & 0x0f));
|
|
return;
|
|
}
|
|
case 0xe8 ... 0xef:
|
|
hs->kbd.modifiers |= 1 << (hid_code & 0x0f);
|
|
return;
|
|
}
|
|
|
|
if (keycode & (1 << 7)) {
|
|
for (i = hs->kbd.keys - 1; i >= 0; i--) {
|
|
if (hs->kbd.key[i] == hid_code) {
|
|
hs->kbd.key[i] = hs->kbd.key[-- hs->kbd.keys];
|
|
hs->kbd.key[hs->kbd.keys] = 0x00;
|
|
break;
|
|
}
|
|
}
|
|
if (i < 0) {
|
|
return;
|
|
}
|
|
} else {
|
|
for (i = hs->kbd.keys - 1; i >= 0; i--) {
|
|
if (hs->kbd.key[i] == hid_code) {
|
|
break;
|
|
}
|
|
}
|
|
if (i < 0) {
|
|
if (hs->kbd.keys < sizeof(hs->kbd.key)) {
|
|
hs->kbd.key[hs->kbd.keys++] = hid_code;
|
|
}
|
|
} else {
|
|
return;
|
|
}
|
|
}
|
|
}
|
|
|
|
static inline int int_clamp(int val, int vmin, int vmax)
|
|
{
|
|
if (val < vmin)
|
|
return vmin;
|
|
else if (val > vmax)
|
|
return vmax;
|
|
else
|
|
return val;
|
|
}
|
|
|
|
static int hid_pointer_poll(HIDState *hs, uint8_t *buf, int len)
|
|
{
|
|
int dx, dy, dz, b, l;
|
|
int index;
|
|
HIDPointerEvent *e;
|
|
|
|
if (!hs->ptr.mouse_grabbed) {
|
|
qemu_activate_mouse_event_handler(hs->ptr.eh_entry);
|
|
hs->ptr.mouse_grabbed = 1;
|
|
}
|
|
|
|
/* When the buffer is empty, return the last event. Relative
|
|
movements will all be zero. */
|
|
index = (hs->n ? hs->head : hs->head - 1);
|
|
e = &hs->ptr.queue[index & QUEUE_MASK];
|
|
|
|
if (hs->kind == HID_MOUSE) {
|
|
dx = int_clamp(e->xdx, -127, 127);
|
|
dy = int_clamp(e->ydy, -127, 127);
|
|
e->xdx -= dx;
|
|
e->ydy -= dy;
|
|
} else {
|
|
dx = e->xdx;
|
|
dy = e->ydy;
|
|
}
|
|
dz = int_clamp(e->dz, -127, 127);
|
|
e->dz -= dz;
|
|
|
|
b = 0;
|
|
if (e->buttons_state & MOUSE_EVENT_LBUTTON)
|
|
b |= 0x01;
|
|
if (e->buttons_state & MOUSE_EVENT_RBUTTON)
|
|
b |= 0x02;
|
|
if (e->buttons_state & MOUSE_EVENT_MBUTTON)
|
|
b |= 0x04;
|
|
|
|
if (hs->n &&
|
|
!e->dz &&
|
|
(hs->kind == HID_TABLET || (!e->xdx && !e->ydy))) {
|
|
/* that deals with this event */
|
|
QUEUE_INCR(hs->head);
|
|
hs->n--;
|
|
}
|
|
|
|
/* Appears we have to invert the wheel direction */
|
|
dz = 0 - dz;
|
|
l = 0;
|
|
switch (hs->kind) {
|
|
case HID_MOUSE:
|
|
if (len > l)
|
|
buf[l++] = b;
|
|
if (len > l)
|
|
buf[l++] = dx;
|
|
if (len > l)
|
|
buf[l++] = dy;
|
|
if (len > l)
|
|
buf[l++] = dz;
|
|
break;
|
|
|
|
case HID_TABLET:
|
|
if (len > l)
|
|
buf[l++] = b;
|
|
if (len > l)
|
|
buf[l++] = dx & 0xff;
|
|
if (len > l)
|
|
buf[l++] = dx >> 8;
|
|
if (len > l)
|
|
buf[l++] = dy & 0xff;
|
|
if (len > l)
|
|
buf[l++] = dy >> 8;
|
|
if (len > l)
|
|
buf[l++] = dz;
|
|
break;
|
|
|
|
default:
|
|
abort();
|
|
}
|
|
|
|
return l;
|
|
}
|
|
|
|
static int hid_keyboard_poll(HIDState *hs, uint8_t *buf, int len)
|
|
{
|
|
if (len < 2)
|
|
return 0;
|
|
|
|
hid_keyboard_process_keycode(hs);
|
|
|
|
buf[0] = hs->kbd.modifiers & 0xff;
|
|
buf[1] = 0;
|
|
if (hs->kbd.keys > 6) {
|
|
memset(buf + 2, USB_HID_USAGE_ERROR_ROLLOVER, MIN(8, len) - 2);
|
|
} else {
|
|
memcpy(buf + 2, hs->kbd.key, MIN(8, len) - 2);
|
|
}
|
|
|
|
return MIN(8, len);
|
|
}
|
|
|
|
static int hid_keyboard_write(HIDState *hs, uint8_t *buf, int len)
|
|
{
|
|
if (len > 0) {
|
|
int ledstate = 0;
|
|
/* 0x01: Num Lock LED
|
|
* 0x02: Caps Lock LED
|
|
* 0x04: Scroll Lock LED
|
|
* 0x08: Compose LED
|
|
* 0x10: Kana LED */
|
|
hs->kbd.leds = buf[0];
|
|
if (hs->kbd.leds & 0x04) {
|
|
ledstate |= QEMU_SCROLL_LOCK_LED;
|
|
}
|
|
if (hs->kbd.leds & 0x01) {
|
|
ledstate |= QEMU_NUM_LOCK_LED;
|
|
}
|
|
if (hs->kbd.leds & 0x02) {
|
|
ledstate |= QEMU_CAPS_LOCK_LED;
|
|
}
|
|
kbd_put_ledstate(ledstate);
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static void usb_mouse_handle_reset(USBDevice *dev)
|
|
{
|
|
USBHIDState *us = DO_UPCAST(USBHIDState, dev, dev);
|
|
|
|
memset(us->hid.ptr.queue, 0, sizeof(us->hid.ptr.queue));
|
|
us->hid.head = 0;
|
|
us->hid.n = 0;
|
|
us->protocol = 1;
|
|
}
|
|
|
|
static void usb_keyboard_handle_reset(USBDevice *dev)
|
|
{
|
|
USBHIDState *us = DO_UPCAST(USBHIDState, dev, dev);
|
|
|
|
qemu_add_kbd_event_handler(usb_keyboard_event, us);
|
|
memset(us->hid.kbd.keycodes, 0, sizeof(us->hid.kbd.keycodes));
|
|
us->hid.head = 0;
|
|
us->hid.n = 0;
|
|
memset(us->hid.kbd.key, 0, sizeof(us->hid.kbd.key));
|
|
us->hid.kbd.keys = 0;
|
|
us->protocol = 1;
|
|
}
|
|
|
|
static void usb_hid_set_next_idle(USBHIDState *s, int64_t curtime)
|
|
{
|
|
s->next_idle_clock = curtime + (get_ticks_per_sec() * s->idle * 4) / 1000;
|
|
}
|
|
|
|
static int usb_hid_handle_control(USBDevice *dev, USBPacket *p,
|
|
int request, int value, int index, int length, uint8_t *data)
|
|
{
|
|
USBHIDState *us = DO_UPCAST(USBHIDState, dev, dev);
|
|
HIDState *hs = &us->hid;
|
|
int ret;
|
|
|
|
ret = usb_desc_handle_control(dev, p, request, value, index, length, data);
|
|
if (ret >= 0) {
|
|
return ret;
|
|
}
|
|
|
|
ret = 0;
|
|
switch (request) {
|
|
case DeviceRequest | USB_REQ_GET_INTERFACE:
|
|
data[0] = 0;
|
|
ret = 1;
|
|
break;
|
|
case DeviceOutRequest | USB_REQ_SET_INTERFACE:
|
|
ret = 0;
|
|
break;
|
|
/* hid specific requests */
|
|
case InterfaceRequest | USB_REQ_GET_DESCRIPTOR:
|
|
switch (value >> 8) {
|
|
case 0x22:
|
|
if (hs->kind == HID_MOUSE) {
|
|
memcpy(data, qemu_mouse_hid_report_descriptor,
|
|
sizeof(qemu_mouse_hid_report_descriptor));
|
|
ret = sizeof(qemu_mouse_hid_report_descriptor);
|
|
} else if (hs->kind == HID_TABLET) {
|
|
memcpy(data, qemu_tablet_hid_report_descriptor,
|
|
sizeof(qemu_tablet_hid_report_descriptor));
|
|
ret = sizeof(qemu_tablet_hid_report_descriptor);
|
|
} else if (hs->kind == HID_KEYBOARD) {
|
|
memcpy(data, qemu_keyboard_hid_report_descriptor,
|
|
sizeof(qemu_keyboard_hid_report_descriptor));
|
|
ret = sizeof(qemu_keyboard_hid_report_descriptor);
|
|
}
|
|
break;
|
|
default:
|
|
goto fail;
|
|
}
|
|
break;
|
|
case GET_REPORT:
|
|
if (hs->kind == HID_MOUSE || hs->kind == HID_TABLET) {
|
|
ret = hid_pointer_poll(hs, data, length);
|
|
} else if (hs->kind == HID_KEYBOARD) {
|
|
ret = hid_keyboard_poll(hs, data, length);
|
|
}
|
|
us->changed = hs->n > 0;
|
|
break;
|
|
case SET_REPORT:
|
|
if (hs->kind == HID_KEYBOARD) {
|
|
ret = hid_keyboard_write(hs, data, length);
|
|
} else {
|
|
goto fail;
|
|
}
|
|
break;
|
|
case GET_PROTOCOL:
|
|
if (hs->kind != HID_KEYBOARD && hs->kind != HID_MOUSE) {
|
|
goto fail;
|
|
}
|
|
ret = 1;
|
|
data[0] = us->protocol;
|
|
break;
|
|
case SET_PROTOCOL:
|
|
if (hs->kind != HID_KEYBOARD && hs->kind != HID_MOUSE) {
|
|
goto fail;
|
|
}
|
|
ret = 0;
|
|
us->protocol = value;
|
|
break;
|
|
case GET_IDLE:
|
|
ret = 1;
|
|
data[0] = us->idle;
|
|
break;
|
|
case SET_IDLE:
|
|
us->idle = (uint8_t) (value >> 8);
|
|
usb_hid_set_next_idle(us, qemu_get_clock_ns(vm_clock));
|
|
ret = 0;
|
|
break;
|
|
default:
|
|
fail:
|
|
ret = USB_RET_STALL;
|
|
break;
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
static int usb_hid_handle_data(USBDevice *dev, USBPacket *p)
|
|
{
|
|
USBHIDState *us = DO_UPCAST(USBHIDState, dev, dev);
|
|
HIDState *hs = &us->hid;
|
|
uint8_t buf[p->iov.size];
|
|
int ret = 0;
|
|
|
|
switch (p->pid) {
|
|
case USB_TOKEN_IN:
|
|
if (p->devep == 1) {
|
|
int64_t curtime = qemu_get_clock_ns(vm_clock);
|
|
if (!us->changed &&
|
|
(!us->idle || us->next_idle_clock - curtime > 0)) {
|
|
return USB_RET_NAK;
|
|
}
|
|
usb_hid_set_next_idle(us, curtime);
|
|
if (hs->kind == HID_MOUSE || hs->kind == HID_TABLET) {
|
|
ret = hid_pointer_poll(hs, buf, p->iov.size);
|
|
} else if (hs->kind == HID_KEYBOARD) {
|
|
ret = hid_keyboard_poll(hs, buf, p->iov.size);
|
|
}
|
|
usb_packet_copy(p, buf, ret);
|
|
us->changed = hs->n > 0;
|
|
} else {
|
|
goto fail;
|
|
}
|
|
break;
|
|
case USB_TOKEN_OUT:
|
|
default:
|
|
fail:
|
|
ret = USB_RET_STALL;
|
|
break;
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
static void usb_hid_handle_destroy(USBDevice *dev)
|
|
{
|
|
USBHIDState *us = DO_UPCAST(USBHIDState, dev, dev);
|
|
|
|
switch (us->hid.kind) {
|
|
case HID_KEYBOARD:
|
|
qemu_remove_kbd_event_handler();
|
|
break;
|
|
default:
|
|
qemu_remove_mouse_event_handler(us->hid.ptr.eh_entry);
|
|
}
|
|
}
|
|
|
|
static int usb_hid_initfn(USBDevice *dev, int kind)
|
|
{
|
|
USBHIDState *us = DO_UPCAST(USBHIDState, dev, dev);
|
|
HIDState *hs = &us->hid;
|
|
|
|
usb_desc_init(dev);
|
|
hs->kind = kind;
|
|
|
|
if (hs->kind == HID_MOUSE) {
|
|
hs->ptr.eh_entry = qemu_add_mouse_event_handler(usb_pointer_event, us,
|
|
0, "QEMU HID Mouse");
|
|
} else if (hs->kind == HID_TABLET) {
|
|
hs->ptr.eh_entry = qemu_add_mouse_event_handler(usb_pointer_event, us,
|
|
1, "QEMU HID Tablet");
|
|
}
|
|
|
|
/* Force poll routine to be run and grab input the first time. */
|
|
us->changed = 1;
|
|
return 0;
|
|
}
|
|
|
|
static int usb_tablet_initfn(USBDevice *dev)
|
|
{
|
|
return usb_hid_initfn(dev, HID_TABLET);
|
|
}
|
|
|
|
static int usb_mouse_initfn(USBDevice *dev)
|
|
{
|
|
return usb_hid_initfn(dev, HID_MOUSE);
|
|
}
|
|
|
|
static int usb_keyboard_initfn(USBDevice *dev)
|
|
{
|
|
return usb_hid_initfn(dev, HID_KEYBOARD);
|
|
}
|
|
|
|
void usb_hid_datain_cb(USBDevice *dev, void *opaque, void (*datain)(void *))
|
|
{
|
|
USBHIDState *s = (USBHIDState *)dev;
|
|
|
|
s->datain_opaque = opaque;
|
|
s->datain = datain;
|
|
}
|
|
|
|
static int usb_hid_post_load(void *opaque, int version_id)
|
|
{
|
|
USBHIDState *s = opaque;
|
|
|
|
if (s->idle) {
|
|
usb_hid_set_next_idle(s, qemu_get_clock_ns(vm_clock));
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static const VMStateDescription vmstate_usb_ptr_queue = {
|
|
.name = "usb-ptr-queue",
|
|
.version_id = 1,
|
|
.minimum_version_id = 1,
|
|
.fields = (VMStateField []) {
|
|
VMSTATE_INT32(xdx, HIDPointerEvent),
|
|
VMSTATE_INT32(ydy, HIDPointerEvent),
|
|
VMSTATE_INT32(dz, HIDPointerEvent),
|
|
VMSTATE_INT32(buttons_state, HIDPointerEvent),
|
|
VMSTATE_END_OF_LIST()
|
|
}
|
|
};
|
|
static const VMStateDescription vmstate_usb_ptr = {
|
|
.name = "usb-ptr",
|
|
.version_id = 1,
|
|
.minimum_version_id = 1,
|
|
.post_load = usb_hid_post_load,
|
|
.fields = (VMStateField []) {
|
|
VMSTATE_USB_DEVICE(dev, USBHIDState),
|
|
VMSTATE_STRUCT_ARRAY(hid.ptr.queue, USBHIDState, QUEUE_LENGTH, 0,
|
|
vmstate_usb_ptr_queue, HIDPointerEvent),
|
|
VMSTATE_UINT32(hid.head, USBHIDState),
|
|
VMSTATE_UINT32(hid.n, USBHIDState),
|
|
VMSTATE_INT32(protocol, USBHIDState),
|
|
VMSTATE_UINT8(idle, USBHIDState),
|
|
VMSTATE_END_OF_LIST()
|
|
}
|
|
};
|
|
|
|
static const VMStateDescription vmstate_usb_kbd = {
|
|
.name = "usb-kbd",
|
|
.version_id = 1,
|
|
.minimum_version_id = 1,
|
|
.post_load = usb_hid_post_load,
|
|
.fields = (VMStateField []) {
|
|
VMSTATE_USB_DEVICE(dev, USBHIDState),
|
|
VMSTATE_UINT32_ARRAY(hid.kbd.keycodes, USBHIDState, QUEUE_LENGTH),
|
|
VMSTATE_UINT32(hid.head, USBHIDState),
|
|
VMSTATE_UINT32(hid.n, USBHIDState),
|
|
VMSTATE_UINT16(hid.kbd.modifiers, USBHIDState),
|
|
VMSTATE_UINT8(hid.kbd.leds, USBHIDState),
|
|
VMSTATE_UINT8_ARRAY(hid.kbd.key, USBHIDState, 16),
|
|
VMSTATE_INT32(hid.kbd.keys, USBHIDState),
|
|
VMSTATE_INT32(protocol, USBHIDState),
|
|
VMSTATE_UINT8(idle, USBHIDState),
|
|
VMSTATE_END_OF_LIST()
|
|
}
|
|
};
|
|
|
|
static struct USBDeviceInfo hid_info[] = {
|
|
{
|
|
.product_desc = "QEMU USB Tablet",
|
|
.qdev.name = "usb-tablet",
|
|
.usbdevice_name = "tablet",
|
|
.qdev.size = sizeof(USBHIDState),
|
|
.qdev.vmsd = &vmstate_usb_ptr,
|
|
.usb_desc = &desc_tablet,
|
|
.init = usb_tablet_initfn,
|
|
.handle_packet = usb_generic_handle_packet,
|
|
.handle_reset = usb_mouse_handle_reset,
|
|
.handle_control = usb_hid_handle_control,
|
|
.handle_data = usb_hid_handle_data,
|
|
.handle_destroy = usb_hid_handle_destroy,
|
|
},{
|
|
.product_desc = "QEMU USB Mouse",
|
|
.qdev.name = "usb-mouse",
|
|
.usbdevice_name = "mouse",
|
|
.qdev.size = sizeof(USBHIDState),
|
|
.qdev.vmsd = &vmstate_usb_ptr,
|
|
.usb_desc = &desc_mouse,
|
|
.init = usb_mouse_initfn,
|
|
.handle_packet = usb_generic_handle_packet,
|
|
.handle_reset = usb_mouse_handle_reset,
|
|
.handle_control = usb_hid_handle_control,
|
|
.handle_data = usb_hid_handle_data,
|
|
.handle_destroy = usb_hid_handle_destroy,
|
|
},{
|
|
.product_desc = "QEMU USB Keyboard",
|
|
.qdev.name = "usb-kbd",
|
|
.usbdevice_name = "keyboard",
|
|
.qdev.size = sizeof(USBHIDState),
|
|
.qdev.vmsd = &vmstate_usb_kbd,
|
|
.usb_desc = &desc_keyboard,
|
|
.init = usb_keyboard_initfn,
|
|
.handle_packet = usb_generic_handle_packet,
|
|
.handle_reset = usb_keyboard_handle_reset,
|
|
.handle_control = usb_hid_handle_control,
|
|
.handle_data = usb_hid_handle_data,
|
|
.handle_destroy = usb_hid_handle_destroy,
|
|
},{
|
|
/* end of list */
|
|
}
|
|
};
|
|
|
|
static void usb_hid_register_devices(void)
|
|
{
|
|
usb_qdev_register_many(hid_info);
|
|
}
|
|
device_init(usb_hid_register_devices)
|