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qemu/hw/usb-hid.c
Gerd Hoffmann 0e4e9695d5 usb hid: use new descriptor infrastructure. 
Switch the usb hid drivers (keyboard, mouse, tablet) over to the
new descriptor infrastructure.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2011-01-11 15:56:00 +01:00

915 lines
28 KiB
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/*
* QEMU USB HID devices
*
* Copyright (c) 2005 Fabrice Bellard
* Copyright (c) 2007 OpenMoko, Inc. (andrew@openedhand.com)
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
#include "hw.h"
#include "console.h"
#include "usb.h"
#include "usb-desc.h"
#include "sysemu.h"
/* HID interface requests */
#define GET_REPORT 0xa101
#define GET_IDLE 0xa102
#define GET_PROTOCOL 0xa103
#define SET_REPORT 0x2109
#define SET_IDLE 0x210a
#define SET_PROTOCOL 0x210b
/* HID descriptor types */
#define USB_DT_HID 0x21
#define USB_DT_REPORT 0x22
#define USB_DT_PHY 0x23
#define USB_MOUSE 1
#define USB_TABLET 2
#define USB_KEYBOARD 3
typedef struct USBMouseState {
int dx, dy, dz, buttons_state;
int x, y;
int mouse_grabbed;
QEMUPutMouseEntry *eh_entry;
} USBMouseState;
typedef struct USBKeyboardState {
uint16_t modifiers;
uint8_t leds;
uint8_t key[16];
int keys;
} USBKeyboardState;
typedef struct USBHIDState {
USBDevice dev;
union {
USBMouseState ptr;
USBKeyboardState kbd;
};
int kind;
int protocol;
uint8_t idle;
int64_t next_idle_clock;
int changed;
void *datain_opaque;
void (*datain)(void *);
} USBHIDState;
enum {
STR_MANUFACTURER = 1,
STR_PRODUCT_MOUSE,
STR_PRODUCT_TABLET,
STR_PRODUCT_KEYBOARD,
STR_SERIALNUMBER,
STR_CONFIG_MOUSE,
STR_CONFIG_TABLET,
STR_CONFIG_KEYBOARD,
};
static const USBDescStrings desc_strings = {
[STR_MANUFACTURER] = "QEMU " QEMU_VERSION,
[STR_PRODUCT_MOUSE] = "QEMU USB Mouse",
[STR_PRODUCT_TABLET] = "QEMU USB Tablet",
[STR_PRODUCT_KEYBOARD] = "QEMU USB Keyboard",
[STR_SERIALNUMBER] = "1",
[STR_CONFIG_MOUSE] = "HID Mouse",
[STR_CONFIG_TABLET] = "HID Tablet",
[STR_CONFIG_KEYBOARD] = "HID Keyboard",
};
static const USBDescIface desc_iface_mouse = {
.bInterfaceNumber = 0,
.bNumEndpoints = 1,
.bInterfaceClass = USB_CLASS_HID,
.bInterfaceSubClass = 0x01, /* boot */
.bInterfaceProtocol = 0x02,
.ndesc = 1,
.descs = (USBDescOther[]) {
{
/* HID descriptor */
.data = (uint8_t[]) {
0x09, /* u8 bLength */
USB_DT_HID, /* u8 bDescriptorType */
0x01, 0x00, /* u16 HID_class */
0x00, /* u8 country_code */
0x01, /* u8 num_descriptors */
USB_DT_REPORT, /* u8 type: Report */
52, 0, /* u16 len */
},
},
},
.eps = (USBDescEndpoint[]) {
{
.bEndpointAddress = USB_DIR_IN | 0x01,
.bmAttributes = USB_ENDPOINT_XFER_INT,
.wMaxPacketSize = 4,
.bInterval = 0x0a,
},
},
};
static const USBDescIface desc_iface_tablet = {
.bInterfaceNumber = 0,
.bNumEndpoints = 1,
.bInterfaceClass = USB_CLASS_HID,
.bInterfaceSubClass = 0x01, /* boot */
.bInterfaceProtocol = 0x02,
.ndesc = 1,
.descs = (USBDescOther[]) {
{
/* HID descriptor */
.data = (uint8_t[]) {
0x09, /* u8 bLength */
USB_DT_HID, /* u8 bDescriptorType */
0x01, 0x00, /* u16 HID_class */
0x00, /* u8 country_code */
0x01, /* u8 num_descriptors */
USB_DT_REPORT, /* u8 type: Report */
74, 0, /* u16 len */
},
},
},
.eps = (USBDescEndpoint[]) {
{
.bEndpointAddress = USB_DIR_IN | 0x01,
.bmAttributes = USB_ENDPOINT_XFER_INT,
.wMaxPacketSize = 8,
.bInterval = 0x0a,
},
},
};
static const USBDescIface desc_iface_keyboard = {
.bInterfaceNumber = 0,
.bNumEndpoints = 1,
.bInterfaceClass = USB_CLASS_HID,
.bInterfaceSubClass = 0x01, /* boot */
.bInterfaceProtocol = 0x01, /* keyboard */
.ndesc = 1,
.descs = (USBDescOther[]) {
{
/* HID descriptor */
.data = (uint8_t[]) {
0x09, /* u8 bLength */
USB_DT_HID, /* u8 bDescriptorType */
0x11, 0x01, /* u16 HID_class */
0x00, /* u8 country_code */
0x01, /* u8 num_descriptors */
USB_DT_REPORT, /* u8 type: Report */
0x3f, 0, /* u16 len */
},
},
},
.eps = (USBDescEndpoint[]) {
{
.bEndpointAddress = USB_DIR_IN | 0x01,
.bmAttributes = USB_ENDPOINT_XFER_INT,
.wMaxPacketSize = 8,
.bInterval = 0x0a,
},
},
};
static const USBDescDevice desc_device_mouse = {
.bcdUSB = 0x0100,
.bMaxPacketSize0 = 8,
.bNumConfigurations = 1,
.confs = (USBDescConfig[]) {
{
.bNumInterfaces = 1,
.bConfigurationValue = 1,
.iConfiguration = STR_CONFIG_MOUSE,
.bmAttributes = 0xa0,
.bMaxPower = 50,
.ifs = &desc_iface_mouse,
},
},
};
static const USBDescDevice desc_device_tablet = {
.bcdUSB = 0x0100,
.bMaxPacketSize0 = 8,
.bNumConfigurations = 1,
.confs = (USBDescConfig[]) {
{
.bNumInterfaces = 1,
.bConfigurationValue = 1,
.iConfiguration = STR_CONFIG_TABLET,
.bmAttributes = 0xa0,
.bMaxPower = 50,
.ifs = &desc_iface_tablet,
},
},
};
static const USBDescDevice desc_device_keyboard = {
.bcdUSB = 0x0100,
.bMaxPacketSize0 = 8,
.bNumConfigurations = 1,
.confs = (USBDescConfig[]) {
{
.bNumInterfaces = 1,
.bConfigurationValue = 1,
.iConfiguration = STR_CONFIG_KEYBOARD,
.bmAttributes = 0xa0,
.bMaxPower = 50,
.ifs = &desc_iface_keyboard,
},
},
};
static const USBDesc desc_mouse = {
.id = {
.idVendor = 0x0627,
.idProduct = 0x0001,
.bcdDevice = 0,
.iManufacturer = STR_MANUFACTURER,
.iProduct = STR_PRODUCT_MOUSE,
.iSerialNumber = STR_SERIALNUMBER,
},
.full = &desc_device_mouse,
.str = desc_strings,
};
static const USBDesc desc_tablet = {
.id = {
.idVendor = 0x0627,
.idProduct = 0x0001,
.bcdDevice = 0,
.iManufacturer = STR_MANUFACTURER,
.iProduct = STR_PRODUCT_TABLET,
.iSerialNumber = STR_SERIALNUMBER,
},
.full = &desc_device_tablet,
.str = desc_strings,
};
static const USBDesc desc_keyboard = {
.id = {
.idVendor = 0x0627,
.idProduct = 0x0001,
.bcdDevice = 0,
.iManufacturer = STR_MANUFACTURER,
.iProduct = STR_PRODUCT_KEYBOARD,
.iSerialNumber = STR_SERIALNUMBER,
},
.full = &desc_device_keyboard,
.str = desc_strings,
};
static const uint8_t qemu_mouse_hid_report_descriptor[] = {
0x05, 0x01, /* Usage Page (Generic Desktop) */
0x09, 0x02, /* Usage (Mouse) */
0xa1, 0x01, /* Collection (Application) */
0x09, 0x01, /* Usage (Pointer) */
0xa1, 0x00, /* Collection (Physical) */
0x05, 0x09, /* Usage Page (Button) */
0x19, 0x01, /* Usage Minimum (1) */
0x29, 0x03, /* Usage Maximum (3) */
0x15, 0x00, /* Logical Minimum (0) */
0x25, 0x01, /* Logical Maximum (1) */
0x95, 0x03, /* Report Count (3) */
0x75, 0x01, /* Report Size (1) */
0x81, 0x02, /* Input (Data, Variable, Absolute) */
0x95, 0x01, /* Report Count (1) */
0x75, 0x05, /* Report Size (5) */
0x81, 0x01, /* Input (Constant) */
0x05, 0x01, /* Usage Page (Generic Desktop) */
0x09, 0x30, /* Usage (X) */
0x09, 0x31, /* Usage (Y) */
0x09, 0x38, /* Usage (Wheel) */
0x15, 0x81, /* Logical Minimum (-0x7f) */
0x25, 0x7f, /* Logical Maximum (0x7f) */
0x75, 0x08, /* Report Size (8) */
0x95, 0x03, /* Report Count (3) */
0x81, 0x06, /* Input (Data, Variable, Relative) */
0xc0, /* End Collection */
0xc0, /* End Collection */
};
static const uint8_t qemu_tablet_hid_report_descriptor[] = {
0x05, 0x01, /* Usage Page (Generic Desktop) */
0x09, 0x01, /* Usage (Pointer) */
0xa1, 0x01, /* Collection (Application) */
0x09, 0x01, /* Usage (Pointer) */
0xa1, 0x00, /* Collection (Physical) */
0x05, 0x09, /* Usage Page (Button) */
0x19, 0x01, /* Usage Minimum (1) */
0x29, 0x03, /* Usage Maximum (3) */
0x15, 0x00, /* Logical Minimum (0) */
0x25, 0x01, /* Logical Maximum (1) */
0x95, 0x03, /* Report Count (3) */
0x75, 0x01, /* Report Size (1) */
0x81, 0x02, /* Input (Data, Variable, Absolute) */
0x95, 0x01, /* Report Count (1) */
0x75, 0x05, /* Report Size (5) */
0x81, 0x01, /* Input (Constant) */
0x05, 0x01, /* Usage Page (Generic Desktop) */
0x09, 0x30, /* Usage (X) */
0x09, 0x31, /* Usage (Y) */
0x15, 0x00, /* Logical Minimum (0) */
0x26, 0xff, 0x7f, /* Logical Maximum (0x7fff) */
0x35, 0x00, /* Physical Minimum (0) */
0x46, 0xff, 0x7f, /* Physical Maximum (0x7fff) */
0x75, 0x10, /* Report Size (16) */
0x95, 0x02, /* Report Count (2) */
0x81, 0x02, /* Input (Data, Variable, Absolute) */
0x05, 0x01, /* Usage Page (Generic Desktop) */
0x09, 0x38, /* Usage (Wheel) */
0x15, 0x81, /* Logical Minimum (-0x7f) */
0x25, 0x7f, /* Logical Maximum (0x7f) */
0x35, 0x00, /* Physical Minimum (same as logical) */
0x45, 0x00, /* Physical Maximum (same as logical) */
0x75, 0x08, /* Report Size (8) */
0x95, 0x01, /* Report Count (1) */
0x81, 0x06, /* Input (Data, Variable, Relative) */
0xc0, /* End Collection */
0xc0, /* End Collection */
};
static const uint8_t qemu_keyboard_hid_report_descriptor[] = {
0x05, 0x01, /* Usage Page (Generic Desktop) */
0x09, 0x06, /* Usage (Keyboard) */
0xa1, 0x01, /* Collection (Application) */
0x75, 0x01, /* Report Size (1) */
0x95, 0x08, /* Report Count (8) */
0x05, 0x07, /* Usage Page (Key Codes) */
0x19, 0xe0, /* Usage Minimum (224) */
0x29, 0xe7, /* Usage Maximum (231) */
0x15, 0x00, /* Logical Minimum (0) */
0x25, 0x01, /* Logical Maximum (1) */
0x81, 0x02, /* Input (Data, Variable, Absolute) */
0x95, 0x01, /* Report Count (1) */
0x75, 0x08, /* Report Size (8) */
0x81, 0x01, /* Input (Constant) */
0x95, 0x05, /* Report Count (5) */
0x75, 0x01, /* Report Size (1) */
0x05, 0x08, /* Usage Page (LEDs) */
0x19, 0x01, /* Usage Minimum (1) */
0x29, 0x05, /* Usage Maximum (5) */
0x91, 0x02, /* Output (Data, Variable, Absolute) */
0x95, 0x01, /* Report Count (1) */
0x75, 0x03, /* Report Size (3) */
0x91, 0x01, /* Output (Constant) */
0x95, 0x06, /* Report Count (6) */
0x75, 0x08, /* Report Size (8) */
0x15, 0x00, /* Logical Minimum (0) */
0x25, 0xff, /* Logical Maximum (255) */
0x05, 0x07, /* Usage Page (Key Codes) */
0x19, 0x00, /* Usage Minimum (0) */
0x29, 0xff, /* Usage Maximum (255) */
0x81, 0x00, /* Input (Data, Array) */
0xc0, /* End Collection */
};
#define USB_HID_USAGE_ERROR_ROLLOVER 0x01
#define USB_HID_USAGE_POSTFAIL 0x02
#define USB_HID_USAGE_ERROR_UNDEFINED 0x03
/* Indices are QEMU keycodes, values are from HID Usage Table. Indices
* above 0x80 are for keys that come after 0xe0 or 0xe1+0x1d or 0xe1+0x9d. */
static const uint8_t usb_hid_usage_keys[0x100] = {
0x00, 0x29, 0x1e, 0x1f, 0x20, 0x21, 0x22, 0x23,
0x24, 0x25, 0x26, 0x27, 0x2d, 0x2e, 0x2a, 0x2b,
0x14, 0x1a, 0x08, 0x15, 0x17, 0x1c, 0x18, 0x0c,
0x12, 0x13, 0x2f, 0x30, 0x28, 0xe0, 0x04, 0x16,
0x07, 0x09, 0x0a, 0x0b, 0x0d, 0x0e, 0x0f, 0x33,
0x34, 0x35, 0xe1, 0x31, 0x1d, 0x1b, 0x06, 0x19,
0x05, 0x11, 0x10, 0x36, 0x37, 0x38, 0xe5, 0x55,
0xe2, 0x2c, 0x32, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e,
0x3f, 0x40, 0x41, 0x42, 0x43, 0x53, 0x47, 0x5f,
0x60, 0x61, 0x56, 0x5c, 0x5d, 0x5e, 0x57, 0x59,
0x5a, 0x5b, 0x62, 0x63, 0x00, 0x00, 0x00, 0x44,
0x45, 0x68, 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e,
0xe8, 0xe9, 0x71, 0x72, 0x73, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x85, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 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, 0x58, 0xe4, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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, 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, 0x00, 0x00, 0x00,
};
static void usb_hid_changed(USBHIDState *hs)
{
hs->changed = 1;
if (hs->datain)
hs->datain(hs->datain_opaque);
}
static void usb_mouse_event(void *opaque,
int dx1, int dy1, int dz1, int buttons_state)
{
USBHIDState *hs = opaque;
USBMouseState *s = &hs->ptr;
s->dx += dx1;
s->dy += dy1;
s->dz += dz1;
s->buttons_state = buttons_state;
usb_hid_changed(hs);
}
static void usb_tablet_event(void *opaque,
int x, int y, int dz, int buttons_state)
{
USBHIDState *hs = opaque;
USBMouseState *s = &hs->ptr;
s->x = x;
s->y = y;
s->dz += dz;
s->buttons_state = buttons_state;
usb_hid_changed(hs);
}
static void usb_keyboard_event(void *opaque, int keycode)
{
USBHIDState *hs = opaque;
USBKeyboardState *s = &hs->kbd;
uint8_t hid_code, key;
int i;
key = keycode & 0x7f;
hid_code = usb_hid_usage_keys[key | ((s->modifiers >> 1) & (1 << 7))];
s->modifiers &= ~(1 << 8);
switch (hid_code) {
case 0x00:
return;
case 0xe0:
if (s->modifiers & (1 << 9)) {
s->modifiers ^= 3 << 8;
return;
}
case 0xe1 ... 0xe7:
if (keycode & (1 << 7)) {
s->modifiers &= ~(1 << (hid_code & 0x0f));
return;
}
case 0xe8 ... 0xef:
s->modifiers |= 1 << (hid_code & 0x0f);
return;
}
if (keycode & (1 << 7)) {
for (i = s->keys - 1; i >= 0; i --)
if (s->key[i] == hid_code) {
s->key[i] = s->key[-- s->keys];
s->key[s->keys] = 0x00;
usb_hid_changed(hs);
break;
}
if (i < 0)
return;
} else {
for (i = s->keys - 1; i >= 0; i --)
if (s->key[i] == hid_code)
break;
if (i < 0) {
if (s->keys < sizeof(s->key))
s->key[s->keys ++] = hid_code;
} else
return;
}
usb_hid_changed(hs);
}
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 usb_mouse_poll(USBHIDState *hs, uint8_t *buf, int len)
{
int dx, dy, dz, b, l;
USBMouseState *s = &hs->ptr;
if (!s->mouse_grabbed) {
qemu_activate_mouse_event_handler(s->eh_entry);
s->mouse_grabbed = 1;
}
dx = int_clamp(s->dx, -127, 127);
dy = int_clamp(s->dy, -127, 127);
dz = int_clamp(s->dz, -127, 127);
s->dx -= dx;
s->dy -= dy;
s->dz -= dz;
/* Appears we have to invert the wheel direction */
dz = 0 - dz;
b = 0;
if (s->buttons_state & MOUSE_EVENT_LBUTTON)
b |= 0x01;
if (s->buttons_state & MOUSE_EVENT_RBUTTON)
b |= 0x02;
if (s->buttons_state & MOUSE_EVENT_MBUTTON)
b |= 0x04;
l = 0;
if (len > l)
buf[l ++] = b;
if (len > l)
buf[l ++] = dx;
if (len > l)
buf[l ++] = dy;
if (len > l)
buf[l ++] = dz;
return l;
}
static int usb_tablet_poll(USBHIDState *hs, uint8_t *buf, int len)
{
int dz, b, l;
USBMouseState *s = &hs->ptr;
if (!s->mouse_grabbed) {
qemu_activate_mouse_event_handler(s->eh_entry);
s->mouse_grabbed = 1;
}
dz = int_clamp(s->dz, -127, 127);
s->dz -= dz;
/* Appears we have to invert the wheel direction */
dz = 0 - dz;
b = 0;
if (s->buttons_state & MOUSE_EVENT_LBUTTON)
b |= 0x01;
if (s->buttons_state & MOUSE_EVENT_RBUTTON)
b |= 0x02;
if (s->buttons_state & MOUSE_EVENT_MBUTTON)
b |= 0x04;
buf[0] = b;
buf[1] = s->x & 0xff;
buf[2] = s->x >> 8;
buf[3] = s->y & 0xff;
buf[4] = s->y >> 8;
buf[5] = dz;
l = 6;
return l;
}
static int usb_keyboard_poll(USBKeyboardState *s, uint8_t *buf, int len)
{
if (len < 2)
return 0;
buf[0] = s->modifiers & 0xff;
buf[1] = 0;
if (s->keys > 6)
memset(buf + 2, USB_HID_USAGE_ERROR_ROLLOVER, MIN(8, len) - 2);
else
memcpy(buf + 2, s->key, MIN(8, len) - 2);
return MIN(8, len);
}
static int usb_keyboard_write(USBKeyboardState *s, 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 */
s->leds = buf[0];
if (s->leds & 0x04)
ledstate |= QEMU_SCROLL_LOCK_LED;
if (s->leds & 0x01)
ledstate |= QEMU_NUM_LOCK_LED;
if (s->leds & 0x02)
ledstate |= QEMU_CAPS_LOCK_LED;
kbd_put_ledstate(ledstate);
}
return 0;
}
static void usb_mouse_handle_reset(USBDevice *dev)
{
USBHIDState *s = (USBHIDState *)dev;
s->ptr.dx = 0;
s->ptr.dy = 0;
s->ptr.dz = 0;
s->ptr.x = 0;
s->ptr.y = 0;
s->ptr.buttons_state = 0;
s->protocol = 1;
}
static void usb_keyboard_handle_reset(USBDevice *dev)
{
USBHIDState *s = (USBHIDState *)dev;
qemu_add_kbd_event_handler(usb_keyboard_event, s);
s->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, int request, int value,
int index, int length, uint8_t *data)
{
USBHIDState *s = (USBHIDState *)dev;
int ret;
ret = usb_desc_handle_control(dev, request, value, index, length, data);
if (ret >= 0) {
return ret;
}
ret = 0;
switch(request) {
case DeviceRequest | USB_REQ_GET_STATUS:
data[0] = (1 << USB_DEVICE_SELF_POWERED) |
(dev->remote_wakeup << USB_DEVICE_REMOTE_WAKEUP);
data[1] = 0x00;
ret = 2;
break;
case DeviceOutRequest | USB_REQ_CLEAR_FEATURE:
if (value == USB_DEVICE_REMOTE_WAKEUP) {
dev->remote_wakeup = 0;
} else {
goto fail;
}
ret = 0;
break;
case DeviceOutRequest | USB_REQ_SET_FEATURE:
if (value == USB_DEVICE_REMOTE_WAKEUP) {
dev->remote_wakeup = 1;
} else {
goto fail;
}
ret = 0;
break;
case DeviceOutRequest | USB_REQ_SET_ADDRESS:
dev->addr = value;
ret = 0;
break;
case DeviceRequest | USB_REQ_GET_CONFIGURATION:
data[0] = 1;
ret = 1;
break;
case DeviceOutRequest | USB_REQ_SET_CONFIGURATION:
ret = 0;
break;
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 (s->kind == USB_MOUSE) {
memcpy(data, qemu_mouse_hid_report_descriptor,
sizeof(qemu_mouse_hid_report_descriptor));
ret = sizeof(qemu_mouse_hid_report_descriptor);
} else if (s->kind == USB_TABLET) {
memcpy(data, qemu_tablet_hid_report_descriptor,
sizeof(qemu_tablet_hid_report_descriptor));
ret = sizeof(qemu_tablet_hid_report_descriptor);
} else if (s->kind == USB_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 (s->kind == USB_MOUSE)
ret = usb_mouse_poll(s, data, length);
else if (s->kind == USB_TABLET)
ret = usb_tablet_poll(s, data, length);
else if (s->kind == USB_KEYBOARD)
ret = usb_keyboard_poll(&s->kbd, data, length);
break;
case SET_REPORT:
if (s->kind == USB_KEYBOARD)
ret = usb_keyboard_write(&s->kbd, data, length);
else
goto fail;
break;
case GET_PROTOCOL:
if (s->kind != USB_KEYBOARD)
goto fail;
ret = 1;
data[0] = s->protocol;
break;
case SET_PROTOCOL:
if (s->kind != USB_KEYBOARD)
goto fail;
ret = 0;
s->protocol = value;
break;
case GET_IDLE:
ret = 1;
data[0] = s->idle;
break;
case SET_IDLE:
s->idle = (uint8_t) (value >> 8);
usb_hid_set_next_idle(s, qemu_get_clock(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 *s = (USBHIDState *)dev;
int ret = 0;
switch(p->pid) {
case USB_TOKEN_IN:
if (p->devep == 1) {
int64_t curtime = qemu_get_clock(vm_clock);
if (!s->changed && (!s->idle || s->next_idle_clock - curtime > 0))
return USB_RET_NAK;
usb_hid_set_next_idle(s, curtime);
s->changed = 0;
if (s->kind == USB_MOUSE)
ret = usb_mouse_poll(s, p->data, p->len);
else if (s->kind == USB_TABLET)
ret = usb_tablet_poll(s, p->data, p->len);
else if (s->kind == USB_KEYBOARD)
ret = usb_keyboard_poll(&s->kbd, p->data, p->len);
} 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 *s = (USBHIDState *)dev;
switch(s->kind) {
case USB_KEYBOARD:
qemu_remove_kbd_event_handler();
break;
default:
qemu_remove_mouse_event_handler(s->ptr.eh_entry);
}
}
static int usb_hid_initfn(USBDevice *dev, int kind)
{
USBHIDState *s = DO_UPCAST(USBHIDState, dev, dev);
s->dev.speed = USB_SPEED_FULL;
s->kind = kind;
if (s->kind == USB_MOUSE) {
s->ptr.eh_entry = qemu_add_mouse_event_handler(usb_mouse_event, s,
0, "QEMU USB Mouse");
} else if (s->kind == USB_TABLET) {
s->ptr.eh_entry = qemu_add_mouse_event_handler(usb_tablet_event, s,
1, "QEMU USB Tablet");
}
/* Force poll routine to be run and grab input the first time. */
s->changed = 1;
return 0;
}
static int usb_tablet_initfn(USBDevice *dev)
{
return usb_hid_initfn(dev, USB_TABLET);
}
static int usb_mouse_initfn(USBDevice *dev)
{
return usb_hid_initfn(dev, USB_MOUSE);
}
static int usb_keyboard_initfn(USBDevice *dev)
{
return usb_hid_initfn(dev, USB_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 struct USBDeviceInfo hid_info[] = {
{
.product_desc = "QEMU USB Tablet",
.qdev.name = "usb-tablet",
.usbdevice_name = "tablet",
.qdev.size = sizeof(USBHIDState),
.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),
.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),
.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)
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