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

/*
 * 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/hw.h"
#include "ui/console.h"
#include "hw/usb.h"
#include "hw/usb/desc.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;
    USBEndpoint *intr;
    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;
    uint8_t idle;
    int changed;
} USBWacomState;

enum {
    STR_MANUFACTURER = 1,
    STR_PRODUCT,
    STR_SERIALNUMBER,
};

static const USBDescStrings desc_strings = {
    [STR_MANUFACTURER]     = "QEMU",
    [STR_PRODUCT]          = "Wacom PenPartner",
    [STR_SERIALNUMBER]     = "1",
};

static const USBDescIface desc_iface_wacom = {
    .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 */
                0x21,          /*  u8  bDescriptorType */
                0x01, 0x10,    /*  u16 HID_class */
                0x00,          /*  u8  country_code */
                0x01,          /*  u8  num_descriptors */
                0x22,          /*  u8  type: Report */
                0x6e, 0,       /*  u16 len */
            },
        },
    },
    .eps = (USBDescEndpoint[]) {
        {
            .bEndpointAddress      = USB_DIR_IN | 0x01,
            .bmAttributes          = USB_ENDPOINT_XFER_INT,
            .wMaxPacketSize        = 8,
            .bInterval             = 0x0a,
        },
    },
};

static const USBDescDevice desc_device_wacom = {
    .bcdUSB                        = 0x0110,
    .bMaxPacketSize0               = 8,
    .bNumConfigurations            = 1,
    .confs = (USBDescConfig[]) {
        {
            .bNumInterfaces        = 1,
            .bConfigurationValue   = 1,
            .bmAttributes          = 0x80,
            .bMaxPower             = 40,
            .nif = 1,
            .ifs = &desc_iface_wacom,
        },
    },
};

static const USBDesc desc_wacom = {
    .id = {
        .idVendor          = 0x056a,
        .idProduct         = 0x0000,
        .bcdDevice         = 0x4210,
        .iManufacturer     = STR_MANUFACTURER,
        .iProduct          = STR_PRODUCT,
        .iSerialNumber     = STR_SERIALNUMBER,
    },
    .full = &desc_device_wacom,
    .str  = desc_strings,
};

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;
    s->changed = 1;
    usb_wakeup(s->intr);
}

static void usb_wacom_event(void *opaque,
                            int x, int y, int dz, int buttons_state)
{
    USBWacomState *s = opaque;

    /* scale to Penpartner resolution */
    s->x = (x * 5040 / 0x7FFF);
    s->y = (y * 3780 / 0x7FFF);
    s->dz += dz;
    s->buttons_state = buttons_state;
    s->changed = 1;
    usb_wakeup(s->intr);
}

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");
        qemu_activate_mouse_event_handler(s->eh_entry);
        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");
        qemu_activate_mouse_event_handler(s->eh_entry);
        s->mouse_grabbed = 1;
    }

    b = 0;
    if (s->buttons_state & MOUSE_EVENT_LBUTTON)
        b |= 0x01;
    if (s->buttons_state & MOUSE_EVENT_RBUTTON)
        b |= 0x40;
    if (s->buttons_state & MOUSE_EVENT_MBUTTON)
        b |= 0x20; /* eraser */

    if (len < 7)
        return 0;

    buf[0] = s->mode;
    buf[5] = 0x00 | (b & 0xf0);
    buf[1] = s->x & 0xff;
    buf[2] = s->x >> 8;
    buf[3] = s->y & 0xff;
    buf[4] = s->y >> 8;
    if (b & 0x3f) {
        buf[6] = 0;
    } else {
        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 void usb_wacom_handle_control(USBDevice *dev, USBPacket *p,
               int request, int value, int index, int length, uint8_t *data)
{
    USBWacomState *s = (USBWacomState *) dev;
    int ret;

    ret = usb_desc_handle_control(dev, p, request, value, index, length, data);
    if (ret >= 0) {
        return;
    }

    switch (request) {
    case WACOM_SET_REPORT:
        if (s->mouse_grabbed) {
            qemu_remove_mouse_event_handler(s->eh_entry);
            s->mouse_grabbed = 0;
        }
        s->mode = data[0];
        break;
    case WACOM_GET_REPORT:
        data[0] = 0;
        data[1] = s->mode;
        p->actual_length = 2;
        break;
    /* USB HID requests */
    case HID_GET_REPORT:
        if (s->mode == WACOM_MODE_HID)
            p->actual_length = usb_mouse_poll(s, data, length);
        else if (s->mode == WACOM_MODE_WACOM)
            p->actual_length = usb_wacom_poll(s, data, length);
        break;
    case HID_GET_IDLE:
        data[0] = s->idle;
        p->actual_length = 1;
        break;
    case HID_SET_IDLE:
        s->idle = (uint8_t) (value >> 8);
        break;
    default:
        p->status = USB_RET_STALL;
        break;
    }
}

static void usb_wacom_handle_data(USBDevice *dev, USBPacket *p)
{
    USBWacomState *s = (USBWacomState *) dev;
    uint8_t buf[p->iov.size];
    int len = 0;

    switch (p->pid) {
    case USB_TOKEN_IN:
        if (p->ep->nr == 1) {
            if (!(s->changed || s->idle)) {
                p->status = USB_RET_NAK;
                return;
            }
            s->changed = 0;
            if (s->mode == WACOM_MODE_HID)
                len = usb_mouse_poll(s, buf, p->iov.size);
            else if (s->mode == WACOM_MODE_WACOM)
                len = usb_wacom_poll(s, buf, p->iov.size);
            usb_packet_copy(p, buf, len);
            break;
        }
        /* Fall through.  */
    case USB_TOKEN_OUT:
    default:
        p->status = USB_RET_STALL;
    }
}

static void usb_wacom_handle_destroy(USBDevice *dev)
{
    USBWacomState *s = (USBWacomState *) dev;

    if (s->mouse_grabbed) {
        qemu_remove_mouse_event_handler(s->eh_entry);
        s->mouse_grabbed = 0;
    }
}

static int usb_wacom_initfn(USBDevice *dev)
{
    USBWacomState *s = DO_UPCAST(USBWacomState, dev, dev);
    usb_desc_create_serial(dev);
    usb_desc_init(dev);
    s->intr = usb_ep_get(dev, USB_TOKEN_IN, 1);
    s->changed = 1;
    return 0;
}

static const VMStateDescription vmstate_usb_wacom = {
    .name = "usb-wacom",
    .unmigratable = 1,
};

static void usb_wacom_class_init(ObjectClass *klass, void *data)
{
    DeviceClass *dc = DEVICE_CLASS(klass);
    USBDeviceClass *uc = USB_DEVICE_CLASS(klass);

    uc->product_desc   = "QEMU PenPartner Tablet";
    uc->usb_desc       = &desc_wacom;
    uc->init           = usb_wacom_initfn;
    uc->handle_reset   = usb_wacom_handle_reset;
    uc->handle_control = usb_wacom_handle_control;
    uc->handle_data    = usb_wacom_handle_data;
    uc->handle_destroy = usb_wacom_handle_destroy;
    dc->desc = "QEMU PenPartner Tablet";
    dc->vmsd = &vmstate_usb_wacom;
}

static TypeInfo wacom_info = {
    .name          = "usb-wacom-tablet",
    .parent        = TYPE_USB_DEVICE,
    .instance_size = sizeof(USBWacomState),
    .class_init    = usb_wacom_class_init,
};

static void usb_wacom_register_types(void)
{
    type_register_static(&wacom_info);
    usb_legacy_register("usb-wacom-tablet", "wacom-tablet", NULL);
}

type_init(usb_wacom_register_types)
Commit	Line	Data
f6d2a316 AZ	1	/*
	2	* Wacom PenPartner USB tablet emulation.
	3	*
	4	* Copyright (c) 2006 Openedhand Ltd.
	5	* Author: Andrzej Zaborowski <balrog@zabor.org>
	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	*/
f1ae32a1	28	#include "hw/hw.h"
28ecbaee	29	#include "ui/console.h"
f1ae32a1 GH	30	#include "hw/usb.h"
f1ae32a1 GH	31	#include "hw/usb/desc.h"
f6d2a316 AZ	32
	33	/* Interface requests */
	34	#define WACOM_GET_REPORT 0x2101
	35	#define WACOM_SET_REPORT 0x2109
	36
	37	/* HID interface requests */
	38	#define HID_GET_REPORT 0xa101
	39	#define HID_GET_IDLE 0xa102
	40	#define HID_GET_PROTOCOL 0xa103
	41	#define HID_SET_IDLE 0x210a
	42	#define HID_SET_PROTOCOL 0x210b
	43
	44	typedef struct USBWacomState {
	45	USBDevice dev;
8beba930	46	USBEndpoint *intr;
f6d2a316 AZ	47	QEMUPutMouseEntry *eh_entry;
	48	int dx, dy, dz, buttons_state;
	49	int x, y;
	50	int mouse_grabbed;
	51	enum {
	52	WACOM_MODE_HID = 1,
	53	WACOM_MODE_WACOM = 2,
	54	} mode;
2ca2078e FR	55	uint8_t idle;
2ca2078e FR	56	int changed;
f6d2a316 AZ	57	} USBWacomState;
f6d2a316 AZ	58
037a5203 GH	59	enum {
	60	STR_MANUFACTURER = 1,
	61	STR_PRODUCT,
	62	STR_SERIALNUMBER,
	63	};
f6d2a316	64
037a5203	65	static const USBDescStrings desc_strings = {
93bfef4c	66	[STR_MANUFACTURER] = "QEMU",
037a5203 GH	67	[STR_PRODUCT] = "Wacom PenPartner",
	68	[STR_SERIALNUMBER] = "1",
	69	};
f6d2a316	70
037a5203 GH	71	static const USBDescIface desc_iface_wacom = {
	72	.bInterfaceNumber = 0,
	73	.bNumEndpoints = 1,
	74	.bInterfaceClass = USB_CLASS_HID,
	75	.bInterfaceSubClass = 0x01, /* boot */
	76	.bInterfaceProtocol = 0x02,
	77	.ndesc = 1,
	78	.descs = (USBDescOther[]) {
	79	{
	80	/* HID descriptor */
	81	.data = (uint8_t[]) {
	82	0x09, /* u8 bLength */
	83	0x21, /* u8 bDescriptorType */
	84	0x01, 0x10, /* u16 HID_class */
	85	0x00, /* u8 country_code */
	86	0x01, /* u8 num_descriptors */
	87	0x22, /* u8 type: Report */
	88	0x6e, 0, /* u16 len */
	89	},
	90	},
	91	},
	92	.eps = (USBDescEndpoint[]) {
	93	{
	94	.bEndpointAddress = USB_DIR_IN \| 0x01,
	95	.bmAttributes = USB_ENDPOINT_XFER_INT,
	96	.wMaxPacketSize = 8,
	97	.bInterval = 0x0a,
	98	},
	99	},
	100	};
f6d2a316	101
037a5203 GH	102	static const USBDescDevice desc_device_wacom = {
	103	.bcdUSB = 0x0110,
	104	.bMaxPacketSize0 = 8,
	105	.bNumConfigurations = 1,
	106	.confs = (USBDescConfig[]) {
	107	{
	108	.bNumInterfaces = 1,
	109	.bConfigurationValue = 1,
	110	.bmAttributes = 0x80,
	111	.bMaxPower = 40,
add75088	112	.nif = 1,
037a5203 GH	113	.ifs = &desc_iface_wacom,
	114	},
	115	},
f6d2a316 AZ	116	};
f6d2a316 AZ	117
037a5203 GH	118	static const USBDesc desc_wacom = {
	119	.id = {
	120	.idVendor = 0x056a,
	121	.idProduct = 0x0000,
	122	.bcdDevice = 0x4210,
	123	.iManufacturer = STR_MANUFACTURER,
	124	.iProduct = STR_PRODUCT,
	125	.iSerialNumber = STR_SERIALNUMBER,
	126	},
	127	.full = &desc_device_wacom,
	128	.str = desc_strings,
f6d2a316 AZ	129	};
	130
	131	static void usb_mouse_event(void *opaque,
	132	int dx1, int dy1, int dz1, int buttons_state)
	133	{
	134	USBWacomState *s = opaque;
	135
	136	s->dx += dx1;
	137	s->dy += dy1;
	138	s->dz += dz1;
	139	s->buttons_state = buttons_state;
2ca2078e	140	s->changed = 1;
8beba930	141	usb_wakeup(s->intr);
f6d2a316 AZ	142	}
	143
	144	static void usb_wacom_event(void *opaque,
	145	int x, int y, int dz, int buttons_state)
	146	{
	147	USBWacomState *s = opaque;
	148
2ca2078e FR	149	/* scale to Penpartner resolution */
	150	s->x = (x * 5040 / 0x7FFF);
	151	s->y = (y * 3780 / 0x7FFF);
f6d2a316 AZ	152	s->dz += dz;
f6d2a316 AZ	153	s->buttons_state = buttons_state;
2ca2078e	154	s->changed = 1;
8beba930	155	usb_wakeup(s->intr);
f6d2a316 AZ	156	}
	157
	158	static inline int int_clamp(int val, int vmin, int vmax)
	159	{
	160	if (val < vmin)
	161	return vmin;
	162	else if (val > vmax)
	163	return vmax;
	164	else
	165	return val;
	166	}
	167
	168	static int usb_mouse_poll(USBWacomState s, uint8_t buf, int len)
	169	{
	170	int dx, dy, dz, b, l;
	171
	172	if (!s->mouse_grabbed) {
	173	s->eh_entry = qemu_add_mouse_event_handler(usb_mouse_event, s, 0,
	174	"QEMU PenPartner tablet");
b2d4d832	175	qemu_activate_mouse_event_handler(s->eh_entry);
f6d2a316 AZ	176	s->mouse_grabbed = 1;
	177	}
	178
	179	dx = int_clamp(s->dx, -128, 127);
	180	dy = int_clamp(s->dy, -128, 127);
	181	dz = int_clamp(s->dz, -128, 127);
	182
	183	s->dx -= dx;
	184	s->dy -= dy;
	185	s->dz -= dz;
	186
	187	b = 0;
	188	if (s->buttons_state & MOUSE_EVENT_LBUTTON)
	189	b \|= 0x01;
	190	if (s->buttons_state & MOUSE_EVENT_RBUTTON)
	191	b \|= 0x02;
	192	if (s->buttons_state & MOUSE_EVENT_MBUTTON)
	193	b \|= 0x04;
	194
	195	buf[0] = b;
	196	buf[1] = dx;
	197	buf[2] = dy;
	198	l = 3;
	199	if (len >= 4) {
	200	buf[3] = dz;
	201	l = 4;
	202	}
	203	return l;
	204	}
	205
	206	static int usb_wacom_poll(USBWacomState s, uint8_t buf, int len)
	207	{
	208	int b;
	209
	210	if (!s->mouse_grabbed) {
	211	s->eh_entry = qemu_add_mouse_event_handler(usb_wacom_event, s, 1,
	212	"QEMU PenPartner tablet");
b2d4d832	213	qemu_activate_mouse_event_handler(s->eh_entry);
f6d2a316 AZ	214	s->mouse_grabbed = 1;
	215	}
	216
	217	b = 0;
	218	if (s->buttons_state & MOUSE_EVENT_LBUTTON)
	219	b \|= 0x01;
	220	if (s->buttons_state & MOUSE_EVENT_RBUTTON)
2ca2078e	221	b \|= 0x40;
f6d2a316	222	if (s->buttons_state & MOUSE_EVENT_MBUTTON)
2ca2078e	223	b \|= 0x20; /* eraser */
f6d2a316 AZ	224
	225	if (len < 7)
	226	return 0;
	227
	228	buf[0] = s->mode;
2ca2078e FR	229	buf[5] = 0x00 \| (b & 0xf0);
	230	buf[1] = s->x & 0xff;
	231	buf[2] = s->x >> 8;
	232	buf[3] = s->y & 0xff;
	233	buf[4] = s->y >> 8;
	234	if (b & 0x3f) {
f6d2a316 AZ	235	buf[6] = 0;
f6d2a316 AZ	236	} else {
f6d2a316 AZ	237	buf[6] = (unsigned char) -127;
	238	}
	239
	240	return 7;
	241	}
	242
	243	static void usb_wacom_handle_reset(USBDevice *dev)
	244	{
	245	USBWacomState s = (USBWacomState ) dev;
	246
	247	s->dx = 0;
	248	s->dy = 0;
	249	s->dz = 0;
	250	s->x = 0;
	251	s->y = 0;
	252	s->buttons_state = 0;
	253	s->mode = WACOM_MODE_HID;
	254	}
	255
9a77a0f5	256	static void usb_wacom_handle_control(USBDevice dev, USBPacket p,
007fd62f	257	int request, int value, int index, int length, uint8_t *data)
f6d2a316 AZ	258	{
f6d2a316 AZ	259	USBWacomState s = (USBWacomState ) dev;
037a5203 GH	260	int ret;
037a5203 GH	261
007fd62f	262	ret = usb_desc_handle_control(dev, p, request, value, index, length, data);
037a5203	263	if (ret >= 0) {
9a77a0f5	264	return;
037a5203	265	}
f6d2a316 AZ	266
f6d2a316 AZ	267	switch (request) {
f6d2a316	268	case WACOM_SET_REPORT:
b2d4d832 GH	269	if (s->mouse_grabbed) {
	270	qemu_remove_mouse_event_handler(s->eh_entry);
	271	s->mouse_grabbed = 0;
	272	}
f6d2a316	273	s->mode = data[0];
f6d2a316 AZ	274	break;
	275	case WACOM_GET_REPORT:
	276	data[0] = 0;
	277	data[1] = s->mode;
9a77a0f5	278	p->actual_length = 2;
f6d2a316 AZ	279	break;
	280	/* USB HID requests */
	281	case HID_GET_REPORT:
	282	if (s->mode == WACOM_MODE_HID)
9a77a0f5	283	p->actual_length = usb_mouse_poll(s, data, length);
f6d2a316	284	else if (s->mode == WACOM_MODE_WACOM)
9a77a0f5	285	p->actual_length = usb_wacom_poll(s, data, length);
f6d2a316	286	break;
2ca2078e	287	case HID_GET_IDLE:
2ca2078e	288	data[0] = s->idle;
9a77a0f5	289	p->actual_length = 1;
2ca2078e	290	break;
f6d2a316	291	case HID_SET_IDLE:
2ca2078e	292	s->idle = (uint8_t) (value >> 8);
f6d2a316 AZ	293	break;
f6d2a316 AZ	294	default:
9a77a0f5	295	p->status = USB_RET_STALL;
f6d2a316 AZ	296	break;
f6d2a316 AZ	297	}
f6d2a316 AZ	298	}
f6d2a316 AZ	299
9a77a0f5	300	static void usb_wacom_handle_data(USBDevice dev, USBPacket p)
f6d2a316 AZ	301	{
f6d2a316 AZ	302	USBWacomState s = (USBWacomState ) dev;
4f4321c1	303	uint8_t buf[p->iov.size];
9a77a0f5	304	int len = 0;
f6d2a316 AZ	305
	306	switch (p->pid) {
	307	case USB_TOKEN_IN:
079d0b7f	308	if (p->ep->nr == 1) {
9a77a0f5 HG	309	if (!(s->changed \|\| s->idle)) {
	310	p->status = USB_RET_NAK;
	311	return;
	312	}
2ca2078e	313	s->changed = 0;
f6d2a316	314	if (s->mode == WACOM_MODE_HID)
9a77a0f5	315	len = usb_mouse_poll(s, buf, p->iov.size);
f6d2a316	316	else if (s->mode == WACOM_MODE_WACOM)
9a77a0f5 HG	317	len = usb_wacom_poll(s, buf, p->iov.size);
9a77a0f5 HG	318	usb_packet_copy(p, buf, len);
f6d2a316 AZ	319	break;
	320	}
	321	/* Fall through. */
	322	case USB_TOKEN_OUT:
	323	default:
9a77a0f5	324	p->status = USB_RET_STALL;
f6d2a316	325	}
f6d2a316 AZ	326	}
	327
	328	static void usb_wacom_handle_destroy(USBDevice *dev)
	329	{
	330	USBWacomState s = (USBWacomState ) dev;
	331
b2d4d832 GH	332	if (s->mouse_grabbed) {
	333	qemu_remove_mouse_event_handler(s->eh_entry);
	334	s->mouse_grabbed = 0;
	335	}
f6d2a316 AZ	336	}
f6d2a316 AZ	337
806b6024	338	static int usb_wacom_initfn(USBDevice *dev)
f6d2a316	339	{
806b6024	340	USBWacomState *s = DO_UPCAST(USBWacomState, dev, dev);
9d55d1ad	341	usb_desc_create_serial(dev);
a980a065	342	usb_desc_init(dev);
8beba930	343	s->intr = usb_ep_get(dev, USB_TOKEN_IN, 1);
2ca2078e	344	s->changed = 1;
806b6024 GH	345	return 0;
806b6024 GH	346	}
f6d2a316	347
ccce9fd2 GH	348	static const VMStateDescription vmstate_usb_wacom = {
	349	.name = "usb-wacom",
	350	.unmigratable = 1,
	351	};
	352
39bffca2	353	static void usb_wacom_class_init(ObjectClass klass, void data)
62aed765	354	{
39bffca2 AL	355	DeviceClass *dc = DEVICE_CLASS(klass);
39bffca2 AL	356	USBDeviceClass *uc = USB_DEVICE_CLASS(klass);
62aed765 AL	357
	358	uc->product_desc = "QEMU PenPartner Tablet";
	359	uc->usb_desc = &desc_wacom;
	360	uc->init = usb_wacom_initfn;
62aed765 AL	361	uc->handle_reset = usb_wacom_handle_reset;
	362	uc->handle_control = usb_wacom_handle_control;
	363	uc->handle_data = usb_wacom_handle_data;
	364	uc->handle_destroy = usb_wacom_handle_destroy;
39bffca2 AL	365	dc->desc = "QEMU PenPartner Tablet";
39bffca2 AL	366	dc->vmsd = &vmstate_usb_wacom;
62aed765 AL	367	}
62aed765 AL	368
39bffca2 AL	369	static TypeInfo wacom_info = {
	370	.name = "usb-wacom-tablet",
	371	.parent = TYPE_USB_DEVICE,
	372	.instance_size = sizeof(USBWacomState),
	373	.class_init = usb_wacom_class_init,
806b6024	374	};
f6d2a316	375
83f7d43a	376	static void usb_wacom_register_types(void)
806b6024	377	{
39bffca2	378	type_register_static(&wacom_info);
ba02430f	379	usb_legacy_register("usb-wacom-tablet", "wacom-tablet", NULL);
f6d2a316	380	}
83f7d43a AF	381
83f7d43a AF	382	type_init(usb_wacom_register_types)