59ae540c3d
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@1599 c046a42c-6fe2-441c-8c8c-71466251a162
348 lines
10 KiB
C
348 lines
10 KiB
C
/*
|
|
* QEMU USB HID devices
|
|
*
|
|
* Copyright (c) 2005 Fabrice Bellard
|
|
*
|
|
* 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 "vl.h"
|
|
|
|
/* HID interface requests */
|
|
#define GET_REPORT 0xa101
|
|
#define GET_IDLE 0xa102
|
|
#define GET_PROTOCOL 0xa103
|
|
#define SET_IDLE 0x210a
|
|
#define SET_PROTOCOL 0x210b
|
|
|
|
typedef struct USBMouseState {
|
|
USBDevice dev;
|
|
int dx, dy, dz, buttons_state;
|
|
} USBMouseState;
|
|
|
|
/* mostly the same values as the Bochs USB Mouse device */
|
|
static const uint8_t qemu_mouse_dev_descriptor[] = {
|
|
0x12, /* u8 bLength; */
|
|
0x01, /* u8 bDescriptorType; Device */
|
|
0x10, 0x00, /* u16 bcdUSB; v1.0 */
|
|
|
|
0x00, /* u8 bDeviceClass; */
|
|
0x00, /* u8 bDeviceSubClass; */
|
|
0x00, /* u8 bDeviceProtocol; [ low/full speeds only ] */
|
|
0x08, /* u8 bMaxPacketSize0; 8 Bytes */
|
|
|
|
0x27, 0x06, /* u16 idVendor; */
|
|
0x01, 0x00, /* u16 idProduct; */
|
|
0x00, 0x00, /* u16 bcdDevice */
|
|
|
|
0x03, /* u8 iManufacturer; */
|
|
0x02, /* u8 iProduct; */
|
|
0x01, /* u8 iSerialNumber; */
|
|
0x01 /* u8 bNumConfigurations; */
|
|
};
|
|
|
|
static const uint8_t qemu_mouse_config_descriptor[] = {
|
|
/* one configuration */
|
|
0x09, /* u8 bLength; */
|
|
0x02, /* u8 bDescriptorType; Configuration */
|
|
0x22, 0x00, /* u16 wTotalLength; */
|
|
0x01, /* u8 bNumInterfaces; (1) */
|
|
0x01, /* u8 bConfigurationValue; */
|
|
0x04, /* u8 iConfiguration; */
|
|
0xa0, /* u8 bmAttributes;
|
|
Bit 7: must be set,
|
|
6: Self-powered,
|
|
5: Remote wakeup,
|
|
4..0: resvd */
|
|
50, /* u8 MaxPower; */
|
|
|
|
/* USB 1.1:
|
|
* USB 2.0, single TT organization (mandatory):
|
|
* one interface, protocol 0
|
|
*
|
|
* USB 2.0, multiple TT organization (optional):
|
|
* two interfaces, protocols 1 (like single TT)
|
|
* and 2 (multiple TT mode) ... config is
|
|
* sometimes settable
|
|
* NOT IMPLEMENTED
|
|
*/
|
|
|
|
/* one interface */
|
|
0x09, /* u8 if_bLength; */
|
|
0x04, /* u8 if_bDescriptorType; Interface */
|
|
0x00, /* u8 if_bInterfaceNumber; */
|
|
0x00, /* u8 if_bAlternateSetting; */
|
|
0x01, /* u8 if_bNumEndpoints; */
|
|
0x03, /* u8 if_bInterfaceClass; */
|
|
0x01, /* u8 if_bInterfaceSubClass; */
|
|
0x02, /* u8 if_bInterfaceProtocol; [usb1.1 or single tt] */
|
|
0x05, /* u8 if_iInterface; */
|
|
|
|
/* one endpoint (status change endpoint) */
|
|
0x07, /* u8 ep_bLength; */
|
|
0x05, /* u8 ep_bDescriptorType; Endpoint */
|
|
0x81, /* u8 ep_bEndpointAddress; IN Endpoint 1 */
|
|
0x03, /* u8 ep_bmAttributes; Interrupt */
|
|
0x03, 0x00, /* u16 ep_wMaxPacketSize; */
|
|
0x0a, /* u8 ep_bInterval; (255ms -- usb 2.0 spec) */
|
|
|
|
/* HID descriptor */
|
|
0x09, /* u8 bLength; */
|
|
0x21, /* u8 bDescriptorType; */
|
|
0x01, 0x00, /* u16 HID_class */
|
|
0x00, /* u8 country_code */
|
|
0x01, /* u8 num_descriptors */
|
|
0x22, /* u8 type; Report */
|
|
50, 0, /* u16 len */
|
|
};
|
|
|
|
static const uint8_t qemu_mouse_hid_report_descriptor[] = {
|
|
0x05, 0x01, 0x09, 0x02, 0xA1, 0x01, 0x09, 0x01,
|
|
0xA1, 0x00, 0x05, 0x09, 0x19, 0x01, 0x29, 0x03,
|
|
0x15, 0x00, 0x25, 0x01, 0x95, 0x03, 0x75, 0x01,
|
|
0x81, 0x02, 0x95, 0x01, 0x75, 0x05, 0x81, 0x01,
|
|
0x05, 0x01, 0x09, 0x30, 0x09, 0x31, 0x15, 0x81,
|
|
0x25, 0x7F, 0x75, 0x08, 0x95, 0x02, 0x81, 0x06,
|
|
0xC0, 0xC0,
|
|
};
|
|
|
|
static void usb_mouse_event(void *opaque,
|
|
int dx1, int dy1, int dz1, int buttons_state)
|
|
{
|
|
USBMouseState *s = opaque;
|
|
|
|
s->dx += dx1;
|
|
s->dy += dy1;
|
|
s->dz += dz1;
|
|
s->buttons_state = buttons_state;
|
|
}
|
|
|
|
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(USBMouseState *s, uint8_t *buf, int len)
|
|
{
|
|
int dx, dy, dz, b, l;
|
|
|
|
dx = int_clamp(s->dx, -128, 127);
|
|
dy = int_clamp(s->dy, -128, 127);
|
|
dz = int_clamp(s->dz, -128, 127);
|
|
|
|
s->dx -= dx;
|
|
s->dy -= dy;
|
|
s->dz -= 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] = dx;
|
|
buf[2] = dy;
|
|
l = 3;
|
|
if (len >= 4) {
|
|
buf[3] = dz;
|
|
l = 4;
|
|
}
|
|
return l;
|
|
}
|
|
|
|
static void usb_mouse_handle_reset(USBDevice *dev)
|
|
{
|
|
USBMouseState *s = (USBMouseState *)dev;
|
|
|
|
s->dx = 0;
|
|
s->dy = 0;
|
|
s->dz = 0;
|
|
s->buttons_state = 0;
|
|
}
|
|
|
|
static int usb_mouse_handle_control(USBDevice *dev, int request, int value,
|
|
int index, int length, uint8_t *data)
|
|
{
|
|
USBMouseState *s = (USBMouseState *)dev;
|
|
int ret;
|
|
|
|
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_DESCRIPTOR:
|
|
switch(value >> 8) {
|
|
case USB_DT_DEVICE:
|
|
memcpy(data, qemu_mouse_dev_descriptor,
|
|
sizeof(qemu_mouse_dev_descriptor));
|
|
ret = sizeof(qemu_mouse_dev_descriptor);
|
|
break;
|
|
case USB_DT_CONFIG:
|
|
memcpy(data, qemu_mouse_config_descriptor,
|
|
sizeof(qemu_mouse_config_descriptor));
|
|
ret = sizeof(qemu_mouse_config_descriptor);
|
|
break;
|
|
case USB_DT_STRING:
|
|
switch(value & 0xff) {
|
|
case 0:
|
|
/* language ids */
|
|
data[0] = 4;
|
|
data[1] = 3;
|
|
data[2] = 0x09;
|
|
data[3] = 0x04;
|
|
ret = 4;
|
|
break;
|
|
case 1:
|
|
/* serial number */
|
|
ret = set_usb_string(data, "1");
|
|
break;
|
|
case 2:
|
|
/* product description */
|
|
ret = set_usb_string(data, "QEMU USB Mouse");
|
|
break;
|
|
case 3:
|
|
/* vendor description */
|
|
ret = set_usb_string(data, "QEMU " QEMU_VERSION);
|
|
break;
|
|
case 4:
|
|
ret = set_usb_string(data, "HID Mouse");
|
|
break;
|
|
case 5:
|
|
ret = set_usb_string(data, "Endpoint1 Interrupt Pipe");
|
|
break;
|
|
default:
|
|
goto fail;
|
|
}
|
|
break;
|
|
default:
|
|
goto fail;
|
|
}
|
|
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:
|
|
memcpy(data, qemu_mouse_hid_report_descriptor,
|
|
sizeof(qemu_mouse_hid_report_descriptor));
|
|
ret = sizeof(qemu_mouse_hid_report_descriptor);
|
|
break;
|
|
default:
|
|
goto fail;
|
|
}
|
|
break;
|
|
case GET_REPORT:
|
|
ret = usb_mouse_poll(s, data, length);
|
|
break;
|
|
case SET_IDLE:
|
|
ret = 0;
|
|
break;
|
|
default:
|
|
fail:
|
|
ret = USB_RET_STALL;
|
|
break;
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
static int usb_mouse_handle_data(USBDevice *dev, int pid,
|
|
uint8_t devep, uint8_t *data, int len)
|
|
{
|
|
USBMouseState *s = (USBMouseState *)dev;
|
|
int ret;
|
|
|
|
switch(pid) {
|
|
case USB_TOKEN_IN:
|
|
if (devep == 1) {
|
|
ret = usb_mouse_poll(s, data, len);
|
|
} else {
|
|
goto fail;
|
|
}
|
|
break;
|
|
case USB_TOKEN_OUT:
|
|
default:
|
|
fail:
|
|
ret = USB_RET_STALL;
|
|
break;
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
USBDevice *usb_mouse_init(void)
|
|
{
|
|
USBMouseState *s;
|
|
|
|
s = qemu_mallocz(sizeof(USBMouseState));
|
|
if (!s)
|
|
return NULL;
|
|
s->dev.speed = USB_SPEED_FULL;
|
|
s->dev.handle_packet = usb_generic_handle_packet;
|
|
|
|
s->dev.handle_reset = usb_mouse_handle_reset;
|
|
s->dev.handle_control = usb_mouse_handle_control;
|
|
s->dev.handle_data = usb_mouse_handle_data;
|
|
|
|
qemu_add_mouse_event_handler(usb_mouse_event, s);
|
|
|
|
return (USBDevice *)s;
|
|
}
|