[qemu.git] / hw / usb-wacom.c

/*
 * Wacom PenPartner USB tablet emulation.
 *
 * Copyright (c) 2006 Openedhand Ltd.
 * Author: Andrzej Zaborowski <[email protected]>
 *
 * 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;
}

USBDevice *usb_wacom_init(void)
{
    return usb_create_simple(NULL /* FIXME */, "QEMU PenPartner Tablet");
}

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)
Commit	Line	Data
f6d2a316 AZ	1	/*
	2	* Wacom PenPartner USB tablet emulation.
	3	*
	4	* Copyright (c) 2006 Openedhand Ltd.
	5	* Author: Andrzej Zaborowski <[email protected]>
	6	*
	7	* Based on hw/usb-hid.c:
	8	* Copyright (c) 2005 Fabrice Bellard
	9	*
	10	* Permission is hereby granted, free of charge, to any person obtaining a copy
	11	* of this software and associated documentation files (the "Software"), to deal
	12	* in the Software without restriction, including without limitation the rights
	13	* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
	14	* copies of the Software, and to permit persons to whom the Software is
	15	* furnished to do so, subject to the following conditions:
	16	*
	17	* The above copyright notice and this permission notice shall be included in
	18	* all copies or substantial portions of the Software.
	19	*
	20	* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
	21	* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
	22	* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
	23	* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
	24	* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
	25	* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
	26	* THE SOFTWARE.
	27	*/
87ecb68b PB	28	#include "hw.h"
	29	#include "console.h"
	30	#include "usb.h"
f6d2a316 AZ	31
	32	/* Interface requests */
	33	#define WACOM_GET_REPORT 0x2101
	34	#define WACOM_SET_REPORT 0x2109
	35
	36	/* HID interface requests */
	37	#define HID_GET_REPORT 0xa101
	38	#define HID_GET_IDLE 0xa102
	39	#define HID_GET_PROTOCOL 0xa103
	40	#define HID_SET_IDLE 0x210a
	41	#define HID_SET_PROTOCOL 0x210b
	42
	43	typedef struct USBWacomState {
	44	USBDevice dev;
	45	QEMUPutMouseEntry *eh_entry;
	46	int dx, dy, dz, buttons_state;
	47	int x, y;
	48	int mouse_grabbed;
	49	enum {
	50	WACOM_MODE_HID = 1,
	51	WACOM_MODE_WACOM = 2,
	52	} mode;
	53	} USBWacomState;
	54
	55	static const uint8_t qemu_wacom_dev_descriptor[] = {
	56	0x12, /* u8 bLength; */
	57	0x01, /* u8 bDescriptorType; Device */
	58	0x10, 0x10, /* u16 bcdUSB; v1.10 */
	59
	60	0x00, /* u8 bDeviceClass; */
	61	0x00, /* u8 bDeviceSubClass; */
	62	0x00, /* u8 bDeviceProtocol; [ low/full speeds only ] */
	63	0x08, /* u8 bMaxPacketSize0; 8 Bytes */
	64
	65	0x6a, 0x05, /* u16 idVendor; */
	66	0x00, 0x00, /* u16 idProduct; */
	67	0x10, 0x42, /* u16 bcdDevice */
	68
	69	0x01, /* u8 iManufacturer; */
	70	0x02, /* u8 iProduct; */
	71	0x00, /* u8 iSerialNumber; */
	72	0x01, /* u8 bNumConfigurations; */
	73	};
	74
	75	static const uint8_t qemu_wacom_config_descriptor[] = {
	76	/* one configuration */
	77	0x09, /* u8 bLength; */
	78	0x02, /* u8 bDescriptorType; Configuration */
	79	0x22, 0x00, /* u16 wTotalLength; */
	80	0x01, /* u8 bNumInterfaces; (1) */
	81	0x01, /* u8 bConfigurationValue; */
	82	0x00, /* u8 iConfiguration; */
5fafdf24	83	0x80, /* u8 bmAttributes;
f6d2a316 AZ	84	Bit 7: must be set,
	85	6: Self-powered,
	86	5: Remote wakeup,
	87	4..0: resvd */
	88	40, /* u8 MaxPower; */
	89
	90	/* one interface */
	91	0x09, /* u8 if_bLength; */
	92	0x04, /* u8 if_bDescriptorType; Interface */
	93	0x00, /* u8 if_bInterfaceNumber; */
	94	0x00, /* u8 if_bAlternateSetting; */
	95	0x01, /* u8 if_bNumEndpoints; */
	96	0x03, /* u8 if_bInterfaceClass; HID */
	97	0x01, /* u8 if_bInterfaceSubClass; Boot */
	98	0x02, /* u8 if_bInterfaceProtocol; [usb1.1 or single tt] */
	99	0x00, /* u8 if_iInterface; */
	100
	101	/* HID descriptor */
	102	0x09, /* u8 bLength; */
	103	0x21, /* u8 bDescriptorType; */
	104	0x01, 0x10, /* u16 HID_class */
	105	0x00, /* u8 country_code */
	106	0x01, /* u8 num_descriptors */
	107	0x22, /* u8 type; Report */
	108	0x6e, 0x00, /* u16 len */
	109
	110	/* one endpoint (status change endpoint) */
	111	0x07, /* u8 ep_bLength; */
	112	0x05, /* u8 ep_bDescriptorType; Endpoint */
	113	0x81, /* u8 ep_bEndpointAddress; IN Endpoint 1 */
	114	0x03, /* u8 ep_bmAttributes; Interrupt */
	115	0x08, 0x00, /* u16 ep_wMaxPacketSize; */
	116	0x0a, /* u8 ep_bInterval; */
	117	};
	118
	119	static void usb_mouse_event(void *opaque,
	120	int dx1, int dy1, int dz1, int buttons_state)
	121	{
	122	USBWacomState *s = opaque;
	123
	124	s->dx += dx1;
	125	s->dy += dy1;
	126	s->dz += dz1;
	127	s->buttons_state = buttons_state;
	128	}
	129
	130	static void usb_wacom_event(void *opaque,
	131	int x, int y, int dz, int buttons_state)
	132	{
	133	USBWacomState *s = opaque;
	134
	135	s->x = x;
	136	s->y = y;
	137	s->dz += dz;
	138	s->buttons_state = buttons_state;
	139	}
	140
	141	static inline int int_clamp(int val, int vmin, int vmax)
	142	{
	143	if (val < vmin)
	144	return vmin;
	145	else if (val > vmax)
	146	return vmax;
	147	else
148	return val;
149	}
150
151	static int usb_mouse_poll(USBWacomState s, uint8_t buf, int len)
152	{
153	int dx, dy, dz, b, l;
154
155	if (!s->mouse_grabbed) {
156	s->eh_entry = qemu_add_mouse_event_handler(usb_mouse_event, s, 0,
157	"QEMU PenPartner tablet");
158	s->mouse_grabbed = 1;
159	}
160
161	dx = int_clamp(s->dx, -128, 127);
162	dy = int_clamp(s->dy, -128, 127);
163	dz = int_clamp(s->dz, -128, 127);
164
165	s->dx -= dx;
166	s->dy -= dy;
167	s->dz -= dz;
168
169	b = 0;
170	if (s->buttons_state & MOUSE_EVENT_LBUTTON)
171	b \|= 0x01;
172	if (s->buttons_state & MOUSE_EVENT_RBUTTON)
173	b \|= 0x02;
174	if (s->buttons_state & MOUSE_EVENT_MBUTTON)
175	b \|= 0x04;
176
177	buf[0] = b;
178	buf[1] = dx;
179	buf[2] = dy;
180	l = 3;
181	if (len >= 4) {
182	buf[3] = dz;
183	l = 4;
184	}
185	return l;
186	}
187
188	static int usb_wacom_poll(USBWacomState s, uint8_t buf, int len)
189	{
190	int b;
191
192	if (!s->mouse_grabbed) {
193	s->eh_entry = qemu_add_mouse_event_handler(usb_wacom_event, s, 1,
194	"QEMU PenPartner tablet");
195	s->mouse_grabbed = 1;
196	}
197
198	b = 0;
199	if (s->buttons_state & MOUSE_EVENT_LBUTTON)
200	b \|= 0x01;
201	if (s->buttons_state & MOUSE_EVENT_RBUTTON)
202	b \|= 0x02;
203	if (s->buttons_state & MOUSE_EVENT_MBUTTON)
204	b \|= 0x04;
205
206	if (len < 7)
207	return 0;
208
209	buf[0] = s->mode;
210	buf[5] = 0x00;
211	if (b) {
212	buf[1] = s->x & 0xff;
213	buf[2] = s->x >> 8;
214	buf[3] = s->y & 0xff;
215	buf[4] = s->y >> 8;
216	buf[6] = 0;
217	} else {
218	buf[1] = 0;
219	buf[2] = 0;
220	buf[3] = 0;
221	buf[4] = 0;
222	buf[6] = (unsigned char) -127;
223	}
224
225	return 7;
226	}
227
228	static void usb_wacom_handle_reset(USBDevice *dev)
229	{
230	USBWacomState s = (USBWacomState ) dev;
231
232	s->dx = 0;
233	s->dy = 0;
234	s->dz = 0;
235	s->x = 0;
236	s->y = 0;
237	s->buttons_state = 0;
238	s->mode = WACOM_MODE_HID;
239	}
240
241	static int usb_wacom_handle_control(USBDevice *dev, int request, int value,
242	int index, int length, uint8_t *data)
243	{
244	USBWacomState s = (USBWacomState ) dev;
245	int ret = 0;
246
247	switch (request) {
248	case DeviceRequest \| USB_REQ_GET_STATUS:
249	data[0] = (1 << USB_DEVICE_SELF_POWERED) \|
250	(dev->remote_wakeup << USB_DEVICE_REMOTE_WAKEUP);
251	data[1] = 0x00;
252	ret = 2;
253	break;
254	case DeviceOutRequest \| USB_REQ_CLEAR_FEATURE:
255	if (value == USB_DEVICE_REMOTE_WAKEUP) {
256	dev->remote_wakeup = 0;
257	} else {
258	goto fail;
259	}
260	ret = 0;
261	break;
262	case DeviceOutRequest \| USB_REQ_SET_FEATURE:
263	if (value == USB_DEVICE_REMOTE_WAKEUP) {
264	dev->remote_wakeup = 1;
265	} else {
266	goto fail;
267	}
268	ret = 0;
269	break;
270	case DeviceOutRequest \| USB_REQ_SET_ADDRESS:
271	dev->addr = value;
272	ret = 0;
273	break;
274	case DeviceRequest \| USB_REQ_GET_DESCRIPTOR:
275	switch (value >> 8) {
276	case USB_DT_DEVICE:
5fafdf24	277	memcpy(data, qemu_wacom_dev_descriptor,
f6d2a316 AZ	278	sizeof(qemu_wacom_dev_descriptor));
	279	ret = sizeof(qemu_wacom_dev_descriptor);
	280	break;
	281	case USB_DT_CONFIG:
5fafdf24	282	memcpy(data, qemu_wacom_config_descriptor,
f6d2a316 AZ	283	sizeof(qemu_wacom_config_descriptor));
	284	ret = sizeof(qemu_wacom_config_descriptor);
	285	break;
	286	case USB_DT_STRING:
	287	switch (value & 0xff) {
	288	case 0:
	289	/* language ids */
	290	data[0] = 4;
	291	data[1] = 3;
	292	data[2] = 0x09;
	293	data[3] = 0x04;
	294	ret = 4;
	295	break;
	296	case 1:
	297	/* serial number */
	298	ret = set_usb_string(data, "1");
	299	break;
	300	case 2:
	301	ret = set_usb_string(data, "Wacom PenPartner");
	302	break;
	303	case 3:
	304	/* vendor description */
	305	ret = set_usb_string(data, "QEMU " QEMU_VERSION);
	306	break;
	307	case 4:
	308	ret = set_usb_string(data, "Wacom Tablet");
	309	break;
	310	case 5:
	311	ret = set_usb_string(data, "Endpoint1 Interrupt Pipe");
	312	break;
	313	default:
	314	goto fail;
	315	}
	316	break;
	317	default:
	318	goto fail;
	319	}
	320	break;
	321	case DeviceRequest \| USB_REQ_GET_CONFIGURATION:
	322	data[0] = 1;
	323	ret = 1;
	324	break;
	325	case DeviceOutRequest \| USB_REQ_SET_CONFIGURATION:
	326	ret = 0;
	327	break;
	328	case DeviceRequest \| USB_REQ_GET_INTERFACE:
	329	data[0] = 0;
	330	ret = 1;
	331	break;
	332	case DeviceOutRequest \| USB_REQ_SET_INTERFACE:
	333	ret = 0;
	334	break;
	335	case WACOM_SET_REPORT:
	336	qemu_remove_mouse_event_handler(s->eh_entry);
	337	s->mouse_grabbed = 0;
	338	s->mode = data[0];
	339	ret = 0;
	340	break;
	341	case WACOM_GET_REPORT:
	342	data[0] = 0;
	343	data[1] = s->mode;
	344	ret = 2;
	345	break;
	346	/* USB HID requests */
347	case HID_GET_REPORT:
348	if (s->mode == WACOM_MODE_HID)
349	ret = usb_mouse_poll(s, data, length);
350	else if (s->mode == WACOM_MODE_WACOM)
351	ret = usb_wacom_poll(s, data, length);
352	break;
353	case HID_SET_IDLE:
354	ret = 0;
355	break;
356	default:
357	fail:
358	ret = USB_RET_STALL;
359	break;
360	}
361	return ret;
362	}
363
364	static int usb_wacom_handle_data(USBDevice dev, USBPacket p)
365	{
366	USBWacomState s = (USBWacomState ) dev;
367	int ret = 0;
368
369	switch (p->pid) {
370	case USB_TOKEN_IN:
371	if (p->devep == 1) {
372	if (s->mode == WACOM_MODE_HID)
373	ret = usb_mouse_poll(s, p->data, p->len);
374	else if (s->mode == WACOM_MODE_WACOM)
375	ret = usb_wacom_poll(s, p->data, p->len);
376	break;
377	}
378	/* Fall through. */
379	case USB_TOKEN_OUT:
380	default:
381	ret = USB_RET_STALL;
382	break;
383	}
384	return ret;
385	}
386
387	static void usb_wacom_handle_destroy(USBDevice *dev)
388	{
389	USBWacomState s = (USBWacomState ) dev;
390
391	qemu_remove_mouse_event_handler(s->eh_entry);
392	qemu_free(s);
393	}
394
806b6024	395	static int usb_wacom_initfn(USBDevice *dev)
f6d2a316	396	{
806b6024	397	USBWacomState *s = DO_UPCAST(USBWacomState, dev, dev);
f6d2a316	398	s->dev.speed = USB_SPEED_FULL;
806b6024 GH	399	return 0;
806b6024 GH	400	}
f6d2a316	401
806b6024 GH	402	USBDevice *usb_wacom_init(void)
	403	{
	404	return usb_create_simple(NULL /* FIXME */, "QEMU PenPartner Tablet");
	405	}
f6d2a316	406
806b6024 GH	407	static struct USBDeviceInfo wacom_info = {
	408	.qdev.name = "QEMU PenPartner Tablet",
	409	.qdev.size = sizeof(USBWacomState),
	410	.init = usb_wacom_initfn,
	411	.handle_packet = usb_generic_handle_packet,
	412	.handle_reset = usb_wacom_handle_reset,
	413	.handle_control = usb_wacom_handle_control,
	414	.handle_data = usb_wacom_handle_data,
	415	.handle_destroy = usb_wacom_handle_destroy,
	416	};
f6d2a316	417
806b6024 GH	418	static void usb_wacom_register_devices(void)
	419	{
	420	usb_qdev_register(&wacom_info);
f6d2a316	421	}
806b6024	422	device_init(usb_wacom_register_devices)