root / hw / usb-hid.c @ 4f4321c1
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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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|
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/* HID descriptor types */
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#define USB_DT_HID 0x21 |
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#define USB_DT_REPORT 0x22 |
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#define USB_DT_PHY 0x23 |
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|
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#define USB_MOUSE 1 |
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#define USB_TABLET 2 |
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#define USB_KEYBOARD 3 |
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|
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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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|
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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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|
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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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|
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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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|
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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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|
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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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|
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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) */ |
| 332 |
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) */ |
| 343 |
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) */ |
| 346 |
0x75, 0x10, /* Report Size (16) */ |
| 347 |
0x95, 0x02, /* Report Count (2) */ |
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0x81, 0x02, /* Input (Data, Variable, Absolute) */ |
| 349 |
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) */ |
| 353 |
0x35, 0x00, /* Physical Minimum (same as logical) */ |
| 354 |
0x45, 0x00, /* Physical Maximum (same as logical) */ |
| 355 |
0x75, 0x08, /* Report Size (8) */ |
| 356 |
0x95, 0x01, /* Report Count (1) */ |
| 357 |
0x81, 0x06, /* Input (Data, Variable, Relative) */ |
| 358 |
0xc0, /* End Collection */ |
| 359 |
0xc0, /* End Collection */ |
| 360 |
}; |
| 361 |
|
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static const uint8_t qemu_keyboard_hid_report_descriptor[] = { |
| 363 |
0x05, 0x01, /* Usage Page (Generic Desktop) */ |
| 364 |
0x09, 0x06, /* Usage (Keyboard) */ |
| 365 |
0xa1, 0x01, /* Collection (Application) */ |
| 366 |
0x75, 0x01, /* Report Size (1) */ |
| 367 |
0x95, 0x08, /* Report Count (8) */ |
| 368 |
0x05, 0x07, /* Usage Page (Key Codes) */ |
| 369 |
0x19, 0xe0, /* Usage Minimum (224) */ |
| 370 |
0x29, 0xe7, /* Usage Maximum (231) */ |
| 371 |
0x15, 0x00, /* Logical Minimum (0) */ |
| 372 |
0x25, 0x01, /* Logical Maximum (1) */ |
| 373 |
0x81, 0x02, /* Input (Data, Variable, Absolute) */ |
| 374 |
0x95, 0x01, /* Report Count (1) */ |
| 375 |
0x75, 0x08, /* Report Size (8) */ |
| 376 |
0x81, 0x01, /* Input (Constant) */ |
| 377 |
0x95, 0x05, /* Report Count (5) */ |
| 378 |
0x75, 0x01, /* Report Size (1) */ |
| 379 |
0x05, 0x08, /* Usage Page (LEDs) */ |
| 380 |
0x19, 0x01, /* Usage Minimum (1) */ |
| 381 |
0x29, 0x05, /* Usage Maximum (5) */ |
| 382 |
0x91, 0x02, /* Output (Data, Variable, Absolute) */ |
| 383 |
0x95, 0x01, /* Report Count (1) */ |
| 384 |
0x75, 0x03, /* Report Size (3) */ |
| 385 |
0x91, 0x01, /* Output (Constant) */ |
| 386 |
0x95, 0x06, /* Report Count (6) */ |
| 387 |
0x75, 0x08, /* Report Size (8) */ |
| 388 |
0x15, 0x00, /* Logical Minimum (0) */ |
| 389 |
0x25, 0xff, /* Logical Maximum (255) */ |
| 390 |
0x05, 0x07, /* Usage Page (Key Codes) */ |
| 391 |
0x19, 0x00, /* Usage Minimum (0) */ |
| 392 |
0x29, 0xff, /* Usage Maximum (255) */ |
| 393 |
0x81, 0x00, /* Input (Data, Array) */ |
| 394 |
0xc0, /* End Collection */ |
| 395 |
}; |
| 396 |
|
| 397 |
#define USB_HID_USAGE_ERROR_ROLLOVER 0x01 |
| 398 |
#define USB_HID_USAGE_POSTFAIL 0x02 |
| 399 |
#define USB_HID_USAGE_ERROR_UNDEFINED 0x03 |
| 400 |
|
| 401 |
/* Indices are QEMU keycodes, values are from HID Usage Table. Indices
|
| 402 |
* above 0x80 are for keys that come after 0xe0 or 0xe1+0x1d or 0xe1+0x9d. */
|
| 403 |
static const uint8_t usb_hid_usage_keys[0x100] = { |
| 404 |
0x00, 0x29, 0x1e, 0x1f, 0x20, 0x21, 0x22, 0x23, |
| 405 |
0x24, 0x25, 0x26, 0x27, 0x2d, 0x2e, 0x2a, 0x2b, |
| 406 |
0x14, 0x1a, 0x08, 0x15, 0x17, 0x1c, 0x18, 0x0c, |
| 407 |
0x12, 0x13, 0x2f, 0x30, 0x28, 0xe0, 0x04, 0x16, |
| 408 |
0x07, 0x09, 0x0a, 0x0b, 0x0d, 0x0e, 0x0f, 0x33, |
| 409 |
0x34, 0x35, 0xe1, 0x31, 0x1d, 0x1b, 0x06, 0x19, |
| 410 |
0x05, 0x11, 0x10, 0x36, 0x37, 0x38, 0xe5, 0x55, |
| 411 |
0xe2, 0x2c, 0x32, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, |
| 412 |
0x3f, 0x40, 0x41, 0x42, 0x43, 0x53, 0x47, 0x5f, |
| 413 |
0x60, 0x61, 0x56, 0x5c, 0x5d, 0x5e, 0x57, 0x59, |
| 414 |
0x5a, 0x5b, 0x62, 0x63, 0x00, 0x00, 0x00, 0x44, |
| 415 |
0x45, 0x68, 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, |
| 416 |
0xe8, 0xe9, 0x71, 0x72, 0x73, 0x00, 0x00, 0x00, |
| 417 |
0x00, 0x00, 0x00, 0x85, 0x00, 0x00, 0x00, 0x00, |
| 418 |
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, |
| 419 |
0x00, 0x00, 0x00, 0x00, 0x00, 0xe3, 0xe7, 0x65, |
| 420 |
|
| 421 |
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, |
| 422 |
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, |
| 423 |
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, |
| 424 |
0x00, 0x00, 0x00, 0x00, 0x58, 0xe4, 0x00, 0x00, |
| 425 |
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, |
| 426 |
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, |
| 427 |
0x00, 0x00, 0x00, 0x00, 0x00, 0x54, 0x00, 0x46, |
| 428 |
0xe6, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, |
| 429 |
0x00, 0x00, 0x00, 0x00, 0x00, 0x48, 0x00, 0x4a, |
| 430 |
0x52, 0x4b, 0x00, 0x50, 0x00, 0x4f, 0x00, 0x4d, |
| 431 |
0x51, 0x4e, 0x49, 0x4c, 0x00, 0x00, 0x00, 0x00, |
| 432 |
0x00, 0x00, 0x00, 0xe3, 0xe7, 0x65, 0x00, 0x00, |
| 433 |
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 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 |
}; |
| 438 |
|
| 439 |
static void usb_hid_changed(USBHIDState *hs) |
| 440 |
{
|
| 441 |
hs->changed = 1;
|
| 442 |
|
| 443 |
if (hs->datain)
|
| 444 |
hs->datain(hs->datain_opaque); |
| 445 |
|
| 446 |
usb_wakeup(&hs->dev); |
| 447 |
} |
| 448 |
|
| 449 |
static void usb_pointer_event_clear(USBPointerEvent *e, int buttons) { |
| 450 |
e->xdx = e->ydy = e->dz = 0;
|
| 451 |
e->buttons_state = buttons; |
| 452 |
} |
| 453 |
|
| 454 |
static void usb_pointer_event_combine(USBPointerEvent *e, int xyrel, |
| 455 |
int x1, int y1, int z1) { |
| 456 |
if (xyrel) {
|
| 457 |
e->xdx += x1; |
| 458 |
e->ydy += y1; |
| 459 |
} else {
|
| 460 |
e->xdx = x1; |
| 461 |
e->ydy = y1; |
| 462 |
/* Windows drivers do not like the 0/0 position and ignore such
|
| 463 |
* events. */
|
| 464 |
if (!(x1 | y1)) {
|
| 465 |
x1 = 1;
|
| 466 |
} |
| 467 |
} |
| 468 |
e->dz += z1; |
| 469 |
} |
| 470 |
|
| 471 |
static void usb_pointer_event(void *opaque, |
| 472 |
int x1, int y1, int z1, int buttons_state) |
| 473 |
{
|
| 474 |
USBHIDState *hs = opaque; |
| 475 |
USBMouseState *s = &hs->ptr; |
| 476 |
unsigned use_slot = (hs->head + hs->n - 1) & QUEUE_MASK; |
| 477 |
unsigned previous_slot = (use_slot - 1) & QUEUE_MASK; |
| 478 |
|
| 479 |
/* We combine events where feasible to keep the queue small. We shouldn't
|
| 480 |
* combine anything with the first event of a particular button state, as
|
| 481 |
* that would change the location of the button state change. When the
|
| 482 |
* queue is empty, a second event is needed because we don't know if
|
| 483 |
* the first event changed the button state. */
|
| 484 |
if (hs->n == QUEUE_LENGTH) {
|
| 485 |
/* Queue full. Discard old button state, combine motion normally. */
|
| 486 |
s->queue[use_slot].buttons_state = buttons_state; |
| 487 |
} else if (hs->n < 2 || |
| 488 |
s->queue[use_slot].buttons_state != buttons_state || |
| 489 |
s->queue[previous_slot].buttons_state != s->queue[use_slot].buttons_state) {
|
| 490 |
/* Cannot or should not combine, so add an empty item to the queue. */
|
| 491 |
QUEUE_INCR(use_slot); |
| 492 |
hs->n++; |
| 493 |
usb_pointer_event_clear(&s->queue[use_slot], buttons_state); |
| 494 |
} |
| 495 |
usb_pointer_event_combine(&s->queue[use_slot], |
| 496 |
hs->kind == USB_MOUSE, |
| 497 |
x1, y1, z1); |
| 498 |
usb_hid_changed(hs); |
| 499 |
} |
| 500 |
|
| 501 |
static void usb_keyboard_event(void *opaque, int keycode) |
| 502 |
{
|
| 503 |
USBHIDState *hs = opaque; |
| 504 |
USBKeyboardState *s = &hs->kbd; |
| 505 |
int slot;
|
| 506 |
|
| 507 |
if (hs->n == QUEUE_LENGTH) {
|
| 508 |
fprintf(stderr, "usb-kbd: warning: key event queue full\n");
|
| 509 |
return;
|
| 510 |
} |
| 511 |
slot = (hs->head + hs->n) & QUEUE_MASK; hs->n++; |
| 512 |
s->keycodes[slot] = keycode; |
| 513 |
usb_hid_changed(hs); |
| 514 |
} |
| 515 |
|
| 516 |
static void usb_keyboard_process_keycode(USBHIDState *hs) |
| 517 |
{
|
| 518 |
USBKeyboardState *s = &hs->kbd; |
| 519 |
uint8_t hid_code, key; |
| 520 |
int i, keycode, slot;
|
| 521 |
|
| 522 |
if (hs->n == 0) { |
| 523 |
return;
|
| 524 |
} |
| 525 |
slot = hs->head & QUEUE_MASK; QUEUE_INCR(hs->head); hs->n--; |
| 526 |
keycode = s->keycodes[slot]; |
| 527 |
|
| 528 |
key = keycode & 0x7f;
|
| 529 |
hid_code = usb_hid_usage_keys[key | ((s->modifiers >> 1) & (1 << 7))]; |
| 530 |
s->modifiers &= ~(1 << 8); |
| 531 |
|
| 532 |
switch (hid_code) {
|
| 533 |
case 0x00: |
| 534 |
return;
|
| 535 |
|
| 536 |
case 0xe0: |
| 537 |
if (s->modifiers & (1 << 9)) { |
| 538 |
s->modifiers ^= 3 << 8; |
| 539 |
return;
|
| 540 |
} |
| 541 |
case 0xe1 ... 0xe7: |
| 542 |
if (keycode & (1 << 7)) { |
| 543 |
s->modifiers &= ~(1 << (hid_code & 0x0f)); |
| 544 |
return;
|
| 545 |
} |
| 546 |
case 0xe8 ... 0xef: |
| 547 |
s->modifiers |= 1 << (hid_code & 0x0f); |
| 548 |
return;
|
| 549 |
} |
| 550 |
|
| 551 |
if (keycode & (1 << 7)) { |
| 552 |
for (i = s->keys - 1; i >= 0; i --) |
| 553 |
if (s->key[i] == hid_code) {
|
| 554 |
s->key[i] = s->key[-- s->keys]; |
| 555 |
s->key[s->keys] = 0x00;
|
| 556 |
break;
|
| 557 |
} |
| 558 |
if (i < 0) |
| 559 |
return;
|
| 560 |
} else {
|
| 561 |
for (i = s->keys - 1; i >= 0; i --) |
| 562 |
if (s->key[i] == hid_code)
|
| 563 |
break;
|
| 564 |
if (i < 0) { |
| 565 |
if (s->keys < sizeof(s->key)) |
| 566 |
s->key[s->keys ++] = hid_code; |
| 567 |
} else
|
| 568 |
return;
|
| 569 |
} |
| 570 |
} |
| 571 |
|
| 572 |
static inline int int_clamp(int val, int vmin, int vmax) |
| 573 |
{
|
| 574 |
if (val < vmin)
|
| 575 |
return vmin;
|
| 576 |
else if (val > vmax) |
| 577 |
return vmax;
|
| 578 |
else
|
| 579 |
return val;
|
| 580 |
} |
| 581 |
|
| 582 |
static int usb_pointer_poll(USBHIDState *hs, uint8_t *buf, int len) |
| 583 |
{
|
| 584 |
int dx, dy, dz, b, l;
|
| 585 |
int index;
|
| 586 |
USBMouseState *s = &hs->ptr; |
| 587 |
USBPointerEvent *e; |
| 588 |
|
| 589 |
if (!s->mouse_grabbed) {
|
| 590 |
qemu_activate_mouse_event_handler(s->eh_entry); |
| 591 |
s->mouse_grabbed = 1;
|
| 592 |
} |
| 593 |
|
| 594 |
/* When the buffer is empty, return the last event. Relative
|
| 595 |
movements will all be zero. */
|
| 596 |
index = (hs->n ? hs->head : hs->head - 1);
|
| 597 |
e = &s->queue[index & QUEUE_MASK]; |
| 598 |
|
| 599 |
if (hs->kind == USB_MOUSE) {
|
| 600 |
dx = int_clamp(e->xdx, -127, 127); |
| 601 |
dy = int_clamp(e->ydy, -127, 127); |
| 602 |
e->xdx -= dx; |
| 603 |
e->ydy -= dy; |
| 604 |
} else {
|
| 605 |
dx = e->xdx; |
| 606 |
dy = e->ydy; |
| 607 |
} |
| 608 |
dz = int_clamp(e->dz, -127, 127); |
| 609 |
e->dz -= dz; |
| 610 |
|
| 611 |
b = 0;
|
| 612 |
if (e->buttons_state & MOUSE_EVENT_LBUTTON)
|
| 613 |
b |= 0x01;
|
| 614 |
if (e->buttons_state & MOUSE_EVENT_RBUTTON)
|
| 615 |
b |= 0x02;
|
| 616 |
if (e->buttons_state & MOUSE_EVENT_MBUTTON)
|
| 617 |
b |= 0x04;
|
| 618 |
|
| 619 |
if (hs->n &&
|
| 620 |
!e->dz && |
| 621 |
(hs->kind == USB_TABLET || (!e->xdx && !e->ydy))) {
|
| 622 |
/* that deals with this event */
|
| 623 |
QUEUE_INCR(hs->head); |
| 624 |
hs->n--; |
| 625 |
} |
| 626 |
|
| 627 |
/* Appears we have to invert the wheel direction */
|
| 628 |
dz = 0 - dz;
|
| 629 |
l = 0;
|
| 630 |
switch (hs->kind) {
|
| 631 |
case USB_MOUSE:
|
| 632 |
if (len > l)
|
| 633 |
buf[l++] = b; |
| 634 |
if (len > l)
|
| 635 |
buf[l++] = dx; |
| 636 |
if (len > l)
|
| 637 |
buf[l++] = dy; |
| 638 |
if (len > l)
|
| 639 |
buf[l++] = dz; |
| 640 |
break;
|
| 641 |
|
| 642 |
case USB_TABLET:
|
| 643 |
if (len > l)
|
| 644 |
buf[l++] = b; |
| 645 |
if (len > l)
|
| 646 |
buf[l++] = dx & 0xff;
|
| 647 |
if (len > l)
|
| 648 |
buf[l++] = dx >> 8;
|
| 649 |
if (len > l)
|
| 650 |
buf[l++] = dy & 0xff;
|
| 651 |
if (len > l)
|
| 652 |
buf[l++] = dy >> 8;
|
| 653 |
if (len > l)
|
| 654 |
buf[l++] = dz; |
| 655 |
break;
|
| 656 |
|
| 657 |
default:
|
| 658 |
abort(); |
| 659 |
} |
| 660 |
|
| 661 |
return l;
|
| 662 |
} |
| 663 |
|
| 664 |
static int usb_keyboard_poll(USBHIDState *hs, uint8_t *buf, int len) |
| 665 |
{
|
| 666 |
USBKeyboardState *s = &hs->kbd; |
| 667 |
if (len < 2) |
| 668 |
return 0; |
| 669 |
|
| 670 |
usb_keyboard_process_keycode(hs); |
| 671 |
|
| 672 |
buf[0] = s->modifiers & 0xff; |
| 673 |
buf[1] = 0; |
| 674 |
if (s->keys > 6) |
| 675 |
memset(buf + 2, USB_HID_USAGE_ERROR_ROLLOVER, MIN(8, len) - 2); |
| 676 |
else
|
| 677 |
memcpy(buf + 2, s->key, MIN(8, len) - 2); |
| 678 |
|
| 679 |
return MIN(8, len); |
| 680 |
} |
| 681 |
|
| 682 |
static int usb_keyboard_write(USBKeyboardState *s, uint8_t *buf, int len) |
| 683 |
{
|
| 684 |
if (len > 0) { |
| 685 |
int ledstate = 0; |
| 686 |
/* 0x01: Num Lock LED
|
| 687 |
* 0x02: Caps Lock LED
|
| 688 |
* 0x04: Scroll Lock LED
|
| 689 |
* 0x08: Compose LED
|
| 690 |
* 0x10: Kana LED */
|
| 691 |
s->leds = buf[0];
|
| 692 |
if (s->leds & 0x04) |
| 693 |
ledstate |= QEMU_SCROLL_LOCK_LED; |
| 694 |
if (s->leds & 0x01) |
| 695 |
ledstate |= QEMU_NUM_LOCK_LED; |
| 696 |
if (s->leds & 0x02) |
| 697 |
ledstate |= QEMU_CAPS_LOCK_LED; |
| 698 |
kbd_put_ledstate(ledstate); |
| 699 |
} |
| 700 |
return 0; |
| 701 |
} |
| 702 |
|
| 703 |
static void usb_mouse_handle_reset(USBDevice *dev) |
| 704 |
{
|
| 705 |
USBHIDState *s = (USBHIDState *)dev; |
| 706 |
|
| 707 |
memset(s->ptr.queue, 0, sizeof (s->ptr.queue)); |
| 708 |
s->head = 0;
|
| 709 |
s->n = 0;
|
| 710 |
s->protocol = 1;
|
| 711 |
} |
| 712 |
|
| 713 |
static void usb_keyboard_handle_reset(USBDevice *dev) |
| 714 |
{
|
| 715 |
USBHIDState *s = (USBHIDState *)dev; |
| 716 |
|
| 717 |
qemu_add_kbd_event_handler(usb_keyboard_event, s); |
| 718 |
memset(s->kbd.keycodes, 0, sizeof (s->kbd.keycodes)); |
| 719 |
s->head = 0;
|
| 720 |
s->n = 0;
|
| 721 |
memset(s->kbd.key, 0, sizeof (s->kbd.key)); |
| 722 |
s->kbd.keys = 0;
|
| 723 |
s->protocol = 1;
|
| 724 |
} |
| 725 |
|
| 726 |
static void usb_hid_set_next_idle(USBHIDState *s, int64_t curtime) |
| 727 |
{
|
| 728 |
s->next_idle_clock = curtime + (get_ticks_per_sec() * s->idle * 4) / 1000; |
| 729 |
} |
| 730 |
|
| 731 |
static int usb_hid_handle_control(USBDevice *dev, USBPacket *p, |
| 732 |
int request, int value, int index, int length, uint8_t *data) |
| 733 |
{
|
| 734 |
USBHIDState *s = (USBHIDState *)dev; |
| 735 |
int ret;
|
| 736 |
|
| 737 |
ret = usb_desc_handle_control(dev, p, request, value, index, length, data); |
| 738 |
if (ret >= 0) { |
| 739 |
return ret;
|
| 740 |
} |
| 741 |
|
| 742 |
ret = 0;
|
| 743 |
switch(request) {
|
| 744 |
case DeviceRequest | USB_REQ_GET_INTERFACE:
|
| 745 |
data[0] = 0; |
| 746 |
ret = 1;
|
| 747 |
break;
|
| 748 |
case DeviceOutRequest | USB_REQ_SET_INTERFACE:
|
| 749 |
ret = 0;
|
| 750 |
break;
|
| 751 |
/* hid specific requests */
|
| 752 |
case InterfaceRequest | USB_REQ_GET_DESCRIPTOR:
|
| 753 |
switch(value >> 8) { |
| 754 |
case 0x22: |
| 755 |
if (s->kind == USB_MOUSE) {
|
| 756 |
memcpy(data, qemu_mouse_hid_report_descriptor, |
| 757 |
sizeof(qemu_mouse_hid_report_descriptor));
|
| 758 |
ret = sizeof(qemu_mouse_hid_report_descriptor);
|
| 759 |
} else if (s->kind == USB_TABLET) { |
| 760 |
memcpy(data, qemu_tablet_hid_report_descriptor, |
| 761 |
sizeof(qemu_tablet_hid_report_descriptor));
|
| 762 |
ret = sizeof(qemu_tablet_hid_report_descriptor);
|
| 763 |
} else if (s->kind == USB_KEYBOARD) { |
| 764 |
memcpy(data, qemu_keyboard_hid_report_descriptor, |
| 765 |
sizeof(qemu_keyboard_hid_report_descriptor));
|
| 766 |
ret = sizeof(qemu_keyboard_hid_report_descriptor);
|
| 767 |
} |
| 768 |
break;
|
| 769 |
default:
|
| 770 |
goto fail;
|
| 771 |
} |
| 772 |
break;
|
| 773 |
case GET_REPORT:
|
| 774 |
if (s->kind == USB_MOUSE || s->kind == USB_TABLET) {
|
| 775 |
ret = usb_pointer_poll(s, data, length); |
| 776 |
} else if (s->kind == USB_KEYBOARD) { |
| 777 |
ret = usb_keyboard_poll(s, data, length); |
| 778 |
} |
| 779 |
s->changed = s->n > 0;
|
| 780 |
break;
|
| 781 |
case SET_REPORT:
|
| 782 |
if (s->kind == USB_KEYBOARD)
|
| 783 |
ret = usb_keyboard_write(&s->kbd, data, length); |
| 784 |
else
|
| 785 |
goto fail;
|
| 786 |
break;
|
| 787 |
case GET_PROTOCOL:
|
| 788 |
if (s->kind != USB_KEYBOARD && s->kind != USB_MOUSE)
|
| 789 |
goto fail;
|
| 790 |
ret = 1;
|
| 791 |
data[0] = s->protocol;
|
| 792 |
break;
|
| 793 |
case SET_PROTOCOL:
|
| 794 |
if (s->kind != USB_KEYBOARD && s->kind != USB_MOUSE)
|
| 795 |
goto fail;
|
| 796 |
ret = 0;
|
| 797 |
s->protocol = value; |
| 798 |
break;
|
| 799 |
case GET_IDLE:
|
| 800 |
ret = 1;
|
| 801 |
data[0] = s->idle;
|
| 802 |
break;
|
| 803 |
case SET_IDLE:
|
| 804 |
s->idle = (uint8_t) (value >> 8);
|
| 805 |
usb_hid_set_next_idle(s, qemu_get_clock_ns(vm_clock)); |
| 806 |
ret = 0;
|
| 807 |
break;
|
| 808 |
default:
|
| 809 |
fail:
|
| 810 |
ret = USB_RET_STALL; |
| 811 |
break;
|
| 812 |
} |
| 813 |
return ret;
|
| 814 |
} |
| 815 |
|
| 816 |
static int usb_hid_handle_data(USBDevice *dev, USBPacket *p) |
| 817 |
{
|
| 818 |
USBHIDState *s = (USBHIDState *)dev; |
| 819 |
uint8_t buf[p->iov.size]; |
| 820 |
int ret = 0; |
| 821 |
|
| 822 |
switch(p->pid) {
|
| 823 |
case USB_TOKEN_IN:
|
| 824 |
if (p->devep == 1) { |
| 825 |
int64_t curtime = qemu_get_clock_ns(vm_clock); |
| 826 |
if (!s->changed && (!s->idle || s->next_idle_clock - curtime > 0)) |
| 827 |
return USB_RET_NAK;
|
| 828 |
usb_hid_set_next_idle(s, curtime); |
| 829 |
if (s->kind == USB_MOUSE || s->kind == USB_TABLET) {
|
| 830 |
ret = usb_pointer_poll(s, buf, p->iov.size); |
| 831 |
} |
| 832 |
else if (s->kind == USB_KEYBOARD) { |
| 833 |
ret = usb_keyboard_poll(s, buf, p->iov.size); |
| 834 |
} |
| 835 |
usb_packet_copy(p, buf, ret); |
| 836 |
s->changed = s->n > 0;
|
| 837 |
} else {
|
| 838 |
goto fail;
|
| 839 |
} |
| 840 |
break;
|
| 841 |
case USB_TOKEN_OUT:
|
| 842 |
default:
|
| 843 |
fail:
|
| 844 |
ret = USB_RET_STALL; |
| 845 |
break;
|
| 846 |
} |
| 847 |
return ret;
|
| 848 |
} |
| 849 |
|
| 850 |
static void usb_hid_handle_destroy(USBDevice *dev) |
| 851 |
{
|
| 852 |
USBHIDState *s = (USBHIDState *)dev; |
| 853 |
|
| 854 |
switch(s->kind) {
|
| 855 |
case USB_KEYBOARD:
|
| 856 |
qemu_remove_kbd_event_handler(); |
| 857 |
break;
|
| 858 |
default:
|
| 859 |
qemu_remove_mouse_event_handler(s->ptr.eh_entry); |
| 860 |
} |
| 861 |
} |
| 862 |
|
| 863 |
static int usb_hid_initfn(USBDevice *dev, int kind) |
| 864 |
{
|
| 865 |
USBHIDState *s = DO_UPCAST(USBHIDState, dev, dev); |
| 866 |
|
| 867 |
usb_desc_init(dev); |
| 868 |
s->kind = kind; |
| 869 |
|
| 870 |
if (s->kind == USB_MOUSE) {
|
| 871 |
s->ptr.eh_entry = qemu_add_mouse_event_handler(usb_pointer_event, s, |
| 872 |
0, "QEMU USB Mouse"); |
| 873 |
} else if (s->kind == USB_TABLET) { |
| 874 |
s->ptr.eh_entry = qemu_add_mouse_event_handler(usb_pointer_event, s, |
| 875 |
1, "QEMU USB Tablet"); |
| 876 |
} |
| 877 |
|
| 878 |
/* Force poll routine to be run and grab input the first time. */
|
| 879 |
s->changed = 1;
|
| 880 |
return 0; |
| 881 |
} |
| 882 |
|
| 883 |
static int usb_tablet_initfn(USBDevice *dev) |
| 884 |
{
|
| 885 |
return usb_hid_initfn(dev, USB_TABLET);
|
| 886 |
} |
| 887 |
|
| 888 |
static int usb_mouse_initfn(USBDevice *dev) |
| 889 |
{
|
| 890 |
return usb_hid_initfn(dev, USB_MOUSE);
|
| 891 |
} |
| 892 |
|
| 893 |
static int usb_keyboard_initfn(USBDevice *dev) |
| 894 |
{
|
| 895 |
return usb_hid_initfn(dev, USB_KEYBOARD);
|
| 896 |
} |
| 897 |
|
| 898 |
void usb_hid_datain_cb(USBDevice *dev, void *opaque, void (*datain)(void *)) |
| 899 |
{
|
| 900 |
USBHIDState *s = (USBHIDState *)dev; |
| 901 |
|
| 902 |
s->datain_opaque = opaque; |
| 903 |
s->datain = datain; |
| 904 |
} |
| 905 |
|
| 906 |
static int usb_hid_post_load(void *opaque, int version_id) |
| 907 |
{
|
| 908 |
USBHIDState *s = opaque; |
| 909 |
|
| 910 |
if (s->idle) {
|
| 911 |
usb_hid_set_next_idle(s, qemu_get_clock_ns(vm_clock)); |
| 912 |
} |
| 913 |
return 0; |
| 914 |
} |
| 915 |
|
| 916 |
static const VMStateDescription vmstate_usb_ptr_queue = { |
| 917 |
.name = "usb-ptr-queue",
|
| 918 |
.version_id = 1,
|
| 919 |
.minimum_version_id = 1,
|
| 920 |
.fields = (VMStateField []) {
|
| 921 |
VMSTATE_INT32(xdx, USBPointerEvent), |
| 922 |
VMSTATE_INT32(ydy, USBPointerEvent), |
| 923 |
VMSTATE_INT32(dz, USBPointerEvent), |
| 924 |
VMSTATE_INT32(buttons_state, USBPointerEvent), |
| 925 |
VMSTATE_END_OF_LIST() |
| 926 |
} |
| 927 |
}; |
| 928 |
static const VMStateDescription vmstate_usb_ptr = { |
| 929 |
.name = "usb-ptr",
|
| 930 |
.version_id = 1,
|
| 931 |
.minimum_version_id = 1,
|
| 932 |
.post_load = usb_hid_post_load, |
| 933 |
.fields = (VMStateField []) {
|
| 934 |
VMSTATE_USB_DEVICE(dev, USBHIDState), |
| 935 |
VMSTATE_STRUCT_ARRAY(ptr.queue, USBHIDState, QUEUE_LENGTH, 0,
|
| 936 |
vmstate_usb_ptr_queue, USBPointerEvent), |
| 937 |
VMSTATE_UINT32(head, USBHIDState), |
| 938 |
VMSTATE_UINT32(n, USBHIDState), |
| 939 |
VMSTATE_INT32(protocol, USBHIDState), |
| 940 |
VMSTATE_UINT8(idle, USBHIDState), |
| 941 |
VMSTATE_END_OF_LIST() |
| 942 |
} |
| 943 |
}; |
| 944 |
|
| 945 |
static const VMStateDescription vmstate_usb_kbd = { |
| 946 |
.name = "usb-kbd",
|
| 947 |
.version_id = 1,
|
| 948 |
.minimum_version_id = 1,
|
| 949 |
.post_load = usb_hid_post_load, |
| 950 |
.fields = (VMStateField []) {
|
| 951 |
VMSTATE_USB_DEVICE(dev, USBHIDState), |
| 952 |
VMSTATE_UINT32_ARRAY(kbd.keycodes, USBHIDState, QUEUE_LENGTH), |
| 953 |
VMSTATE_UINT32(head, USBHIDState), |
| 954 |
VMSTATE_UINT32(n, USBHIDState), |
| 955 |
VMSTATE_UINT16(kbd.modifiers, USBHIDState), |
| 956 |
VMSTATE_UINT8(kbd.leds, USBHIDState), |
| 957 |
VMSTATE_UINT8_ARRAY(kbd.key, USBHIDState, 16),
|
| 958 |
VMSTATE_INT32(kbd.keys, USBHIDState), |
| 959 |
VMSTATE_INT32(protocol, USBHIDState), |
| 960 |
VMSTATE_UINT8(idle, USBHIDState), |
| 961 |
VMSTATE_END_OF_LIST() |
| 962 |
} |
| 963 |
}; |
| 964 |
|
| 965 |
static struct USBDeviceInfo hid_info[] = { |
| 966 |
{
|
| 967 |
.product_desc = "QEMU USB Tablet",
|
| 968 |
.qdev.name = "usb-tablet",
|
| 969 |
.usbdevice_name = "tablet",
|
| 970 |
.qdev.size = sizeof(USBHIDState),
|
| 971 |
.qdev.vmsd = &vmstate_usb_ptr, |
| 972 |
.usb_desc = &desc_tablet, |
| 973 |
.init = usb_tablet_initfn, |
| 974 |
.handle_packet = usb_generic_handle_packet, |
| 975 |
.handle_reset = usb_mouse_handle_reset, |
| 976 |
.handle_control = usb_hid_handle_control, |
| 977 |
.handle_data = usb_hid_handle_data, |
| 978 |
.handle_destroy = usb_hid_handle_destroy, |
| 979 |
},{
|
| 980 |
.product_desc = "QEMU USB Mouse",
|
| 981 |
.qdev.name = "usb-mouse",
|
| 982 |
.usbdevice_name = "mouse",
|
| 983 |
.qdev.size = sizeof(USBHIDState),
|
| 984 |
.qdev.vmsd = &vmstate_usb_ptr, |
| 985 |
.usb_desc = &desc_mouse, |
| 986 |
.init = usb_mouse_initfn, |
| 987 |
.handle_packet = usb_generic_handle_packet, |
| 988 |
.handle_reset = usb_mouse_handle_reset, |
| 989 |
.handle_control = usb_hid_handle_control, |
| 990 |
.handle_data = usb_hid_handle_data, |
| 991 |
.handle_destroy = usb_hid_handle_destroy, |
| 992 |
},{
|
| 993 |
.product_desc = "QEMU USB Keyboard",
|
| 994 |
.qdev.name = "usb-kbd",
|
| 995 |
.usbdevice_name = "keyboard",
|
| 996 |
.qdev.size = sizeof(USBHIDState),
|
| 997 |
.qdev.vmsd = &vmstate_usb_kbd, |
| 998 |
.usb_desc = &desc_keyboard, |
| 999 |
.init = usb_keyboard_initfn, |
| 1000 |
.handle_packet = usb_generic_handle_packet, |
| 1001 |
.handle_reset = usb_keyboard_handle_reset, |
| 1002 |
.handle_control = usb_hid_handle_control, |
| 1003 |
.handle_data = usb_hid_handle_data, |
| 1004 |
.handle_destroy = usb_hid_handle_destroy, |
| 1005 |
},{
|
| 1006 |
/* end of list */
|
| 1007 |
} |
| 1008 |
}; |
| 1009 |
|
| 1010 |
static void usb_hid_register_devices(void) |
| 1011 |
{
|
| 1012 |
usb_qdev_register_many(hid_info); |
| 1013 |
} |
| 1014 |
device_init(usb_hid_register_devices) |