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a5d2f7273c
xemu/hw/usb-wacom.c
Gerd Hoffmann a5d2f7273c qdev/usb: make qemu aware of usb busses. 
Move usb code from vl.c to usb-bus.c and make it use the new data
structures added by qdev conversion.  qemu usb core should be able
to handle multiple USB busses just fine now (untested though).

Kill some usb_*_init() legacy functions, use usb_create_simple()
instead.

Kill some FIXMEs added by the first qdev/usb patch.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-09-09 14:55:17 -05:00

418 lines
11 KiB
C
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/*
* Wacom PenPartner USB tablet emulation.
*
* Copyright (c) 2006 Openedhand Ltd.
* Author: Andrzej Zaborowski <balrog@zabor.org>
*
* Based on hw/usb-hid.c:
* 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 "hw.h"
#include "console.h"
#include "usb.h"
/* Interface requests */
#define WACOM_GET_REPORT 0x2101
#define WACOM_SET_REPORT 0x2109
/* HID interface requests */
#define HID_GET_REPORT 0xa101
#define HID_GET_IDLE 0xa102
#define HID_GET_PROTOCOL 0xa103
#define HID_SET_IDLE 0x210a
#define HID_SET_PROTOCOL 0x210b
typedef struct USBWacomState {
USBDevice dev;
QEMUPutMouseEntry *eh_entry;
int dx, dy, dz, buttons_state;
int x, y;
int mouse_grabbed;
enum {
WACOM_MODE_HID = 1,
WACOM_MODE_WACOM = 2,
} mode;
} USBWacomState;
static const uint8_t qemu_wacom_dev_descriptor[] = {
0x12, /* u8 bLength; */
0x01, /* u8 bDescriptorType; Device */
0x10, 0x10, /* u16 bcdUSB; v1.10 */
0x00, /* u8 bDeviceClass; */
0x00, /* u8 bDeviceSubClass; */
0x00, /* u8 bDeviceProtocol; [ low/full speeds only ] */
0x08, /* u8 bMaxPacketSize0; 8 Bytes */
0x6a, 0x05, /* u16 idVendor; */
0x00, 0x00, /* u16 idProduct; */
0x10, 0x42, /* u16 bcdDevice */
0x01, /* u8 iManufacturer; */
0x02, /* u8 iProduct; */
0x00, /* u8 iSerialNumber; */
0x01, /* u8 bNumConfigurations; */
};
static const uint8_t qemu_wacom_config_descriptor[] = {
/* one configuration */
0x09, /* u8 bLength; */
0x02, /* u8 bDescriptorType; Configuration */
0x22, 0x00, /* u16 wTotalLength; */
0x01, /* u8 bNumInterfaces; (1) */
0x01, /* u8 bConfigurationValue; */
0x00, /* u8 iConfiguration; */
0x80, /* u8 bmAttributes;
Bit 7: must be set,
6: Self-powered,
5: Remote wakeup,
4..0: resvd */
40, /* u8 MaxPower; */
/* 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; HID */
0x01, /* u8 if_bInterfaceSubClass; Boot */
0x02, /* u8 if_bInterfaceProtocol; [usb1.1 or single tt] */
0x00, /* u8 if_iInterface; */
/* HID descriptor */
0x09, /* u8 bLength; */
0x21, /* u8 bDescriptorType; */
0x01, 0x10, /* u16 HID_class */
0x00, /* u8 country_code */
0x01, /* u8 num_descriptors */
0x22, /* u8 type; Report */
0x6e, 0x00, /* u16 len */
/* 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 */
0x08, 0x00, /* u16 ep_wMaxPacketSize; */
0x0a, /* u8 ep_bInterval; */
};
static void usb_mouse_event(void *opaque,
int dx1, int dy1, int dz1, int buttons_state)
{
USBWacomState *s = opaque;
s->dx += dx1;
s->dy += dy1;
s->dz += dz1;
s->buttons_state = buttons_state;
}
static void usb_wacom_event(void *opaque,
int x, int y, int dz, int buttons_state)
{
USBWacomState *s = opaque;
s->x = x;
s->y = y;
s->dz += dz;
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(USBWacomState *s, uint8_t *buf, int len)
{
int dx, dy, dz, b, l;
if (!s->mouse_grabbed) {
s->eh_entry = qemu_add_mouse_event_handler(usb_mouse_event, s, 0,
"QEMU PenPartner tablet");
s->mouse_grabbed = 1;
}
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 int usb_wacom_poll(USBWacomState *s, uint8_t *buf, int len)
{
int b;
if (!s->mouse_grabbed) {
s->eh_entry = qemu_add_mouse_event_handler(usb_wacom_event, s, 1,
"QEMU PenPartner tablet");
s->mouse_grabbed = 1;
}
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;
if (len < 7)
return 0;
buf[0] = s->mode;
buf[5] = 0x00;
if (b) {
buf[1] = s->x & 0xff;
buf[2] = s->x >> 8;
buf[3] = s->y & 0xff;
buf[4] = s->y >> 8;
buf[6] = 0;
} else {
buf[1] = 0;
buf[2] = 0;
buf[3] = 0;
buf[4] = 0;
buf[6] = (unsigned char) -127;
}
return 7;
}
static void usb_wacom_handle_reset(USBDevice *dev)
{
USBWacomState *s = (USBWacomState *) dev;
s->dx = 0;
s->dy = 0;
s->dz = 0;
s->x = 0;
s->y = 0;
s->buttons_state = 0;
s->mode = WACOM_MODE_HID;
}
static int usb_wacom_handle_control(USBDevice *dev, int request, int value,
int index, int length, uint8_t *data)
{
USBWacomState *s = (USBWacomState *) dev;
int 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_DESCRIPTOR:
switch (value >> 8) {
case USB_DT_DEVICE:
memcpy(data, qemu_wacom_dev_descriptor,
sizeof(qemu_wacom_dev_descriptor));
ret = sizeof(qemu_wacom_dev_descriptor);
break;
case USB_DT_CONFIG:
memcpy(data, qemu_wacom_config_descriptor,
sizeof(qemu_wacom_config_descriptor));
ret = sizeof(qemu_wacom_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:
ret = set_usb_string(data, "Wacom PenPartner");
break;
case 3:
/* vendor description */
ret = set_usb_string(data, "QEMU " QEMU_VERSION);
break;
case 4:
ret = set_usb_string(data, "Wacom Tablet");
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;
case WACOM_SET_REPORT:
qemu_remove_mouse_event_handler(s->eh_entry);
s->mouse_grabbed = 0;
s->mode = data[0];
ret = 0;
break;
case WACOM_GET_REPORT:
data[0] = 0;
data[1] = s->mode;
ret = 2;
break;
/* USB HID requests */
case HID_GET_REPORT:
if (s->mode == WACOM_MODE_HID)
ret = usb_mouse_poll(s, data, length);
else if (s->mode == WACOM_MODE_WACOM)
ret = usb_wacom_poll(s, data, length);
break;
case HID_SET_IDLE:
ret = 0;
break;
default:
fail:
ret = USB_RET_STALL;
break;
}
return ret;
}
static int usb_wacom_handle_data(USBDevice *dev, USBPacket *p)
{
USBWacomState *s = (USBWacomState *) dev;
int ret = 0;
switch (p->pid) {
case USB_TOKEN_IN:
if (p->devep == 1) {
if (s->mode == WACOM_MODE_HID)
ret = usb_mouse_poll(s, p->data, p->len);
else if (s->mode == WACOM_MODE_WACOM)
ret = usb_wacom_poll(s, p->data, p->len);
break;
}
/* Fall through. */
case USB_TOKEN_OUT:
default:
ret = USB_RET_STALL;
break;
}
return ret;
}
static void usb_wacom_handle_destroy(USBDevice *dev)
{
USBWacomState *s = (USBWacomState *) dev;
qemu_remove_mouse_event_handler(s->eh_entry);
qemu_free(s);
}
static int usb_wacom_initfn(USBDevice *dev)
{
USBWacomState *s = DO_UPCAST(USBWacomState, dev, dev);
s->dev.speed = USB_SPEED_FULL;
return 0;
}
static struct USBDeviceInfo wacom_info = {
.qdev.name = "QEMU PenPartner Tablet",
.qdev.size = sizeof(USBWacomState),
.init = usb_wacom_initfn,
.handle_packet = usb_generic_handle_packet,
.handle_reset = usb_wacom_handle_reset,
.handle_control = usb_wacom_handle_control,
.handle_data = usb_wacom_handle_data,
.handle_destroy = usb_wacom_handle_destroy,
};
static void usb_wacom_register_devices(void)
{
usb_qdev_register(&wacom_info);
}
device_init(usb_wacom_register_devices)
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