mirror of
https://gitlab.com/qemu-project/qemu
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Wacom PenPartner tablet (virtual USB device).
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@2977 c046a42c-6fe2-441c-8c8c-71466251a162
This commit is contained in:
balrog
parent
a2502b58b3
commit
f6d2a316d2
5 changed files with 422 additions and 0 deletions
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@ -409,6 +409,7 @@ VL_OBJS+= scsi-disk.o cdrom.o lsi53c895a.o
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# USB layer
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VL_OBJS+= usb.o usb-hub.o usb-linux.o usb-hid.o usb-ohci.o usb-msd.o
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VL_OBJS+= usb-wacom.o
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# EEPROM emulation
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VL_OBJS += eeprom93xx.o
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412
hw/usb-wacom.c
Normal file
412
hw/usb-wacom.c
Normal file
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@ -0,0 +1,412 @@
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/*
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* Wacom PenPartner USB tablet emulation.
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*
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* Copyright (c) 2006 Openedhand Ltd.
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* Author: Andrzej Zaborowski <balrog@zabor.org>
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*
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* Based on hw/usb-hid.c:
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* Copyright (c) 2005 Fabrice Bellard
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#include "vl.h"
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/* Interface requests */
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#define WACOM_GET_REPORT 0x2101
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#define WACOM_SET_REPORT 0x2109
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/* HID interface requests */
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#define HID_GET_REPORT 0xa101
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#define HID_GET_IDLE 0xa102
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#define HID_GET_PROTOCOL 0xa103
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#define HID_SET_IDLE 0x210a
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#define HID_SET_PROTOCOL 0x210b
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typedef struct USBWacomState {
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USBDevice dev;
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QEMUPutMouseEntry *eh_entry;
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int dx, dy, dz, buttons_state;
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int x, y;
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int mouse_grabbed;
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enum {
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WACOM_MODE_HID = 1,
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WACOM_MODE_WACOM = 2,
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} mode;
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} USBWacomState;
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static const uint8_t qemu_wacom_dev_descriptor[] = {
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0x12, /* u8 bLength; */
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0x01, /* u8 bDescriptorType; Device */
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0x10, 0x10, /* u16 bcdUSB; v1.10 */
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0x00, /* u8 bDeviceClass; */
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0x00, /* u8 bDeviceSubClass; */
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0x00, /* u8 bDeviceProtocol; [ low/full speeds only ] */
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0x08, /* u8 bMaxPacketSize0; 8 Bytes */
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0x6a, 0x05, /* u16 idVendor; */
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0x00, 0x00, /* u16 idProduct; */
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0x10, 0x42, /* u16 bcdDevice */
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0x01, /* u8 iManufacturer; */
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0x02, /* u8 iProduct; */
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0x00, /* u8 iSerialNumber; */
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0x01, /* u8 bNumConfigurations; */
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};
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static const uint8_t qemu_wacom_config_descriptor[] = {
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/* one configuration */
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0x09, /* u8 bLength; */
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0x02, /* u8 bDescriptorType; Configuration */
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0x22, 0x00, /* u16 wTotalLength; */
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0x01, /* u8 bNumInterfaces; (1) */
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0x01, /* u8 bConfigurationValue; */
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0x00, /* u8 iConfiguration; */
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0x80, /* u8 bmAttributes;
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Bit 7: must be set,
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6: Self-powered,
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5: Remote wakeup,
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4..0: resvd */
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40, /* u8 MaxPower; */
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/* one interface */
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0x09, /* u8 if_bLength; */
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0x04, /* u8 if_bDescriptorType; Interface */
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0x00, /* u8 if_bInterfaceNumber; */
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0x00, /* u8 if_bAlternateSetting; */
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0x01, /* u8 if_bNumEndpoints; */
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0x03, /* u8 if_bInterfaceClass; HID */
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0x01, /* u8 if_bInterfaceSubClass; Boot */
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0x02, /* u8 if_bInterfaceProtocol; [usb1.1 or single tt] */
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0x00, /* u8 if_iInterface; */
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/* HID descriptor */
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0x09, /* u8 bLength; */
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0x21, /* u8 bDescriptorType; */
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0x01, 0x10, /* u16 HID_class */
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0x00, /* u8 country_code */
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0x01, /* u8 num_descriptors */
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0x22, /* u8 type; Report */
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0x6e, 0x00, /* u16 len */
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/* one endpoint (status change endpoint) */
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0x07, /* u8 ep_bLength; */
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0x05, /* u8 ep_bDescriptorType; Endpoint */
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0x81, /* u8 ep_bEndpointAddress; IN Endpoint 1 */
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0x03, /* u8 ep_bmAttributes; Interrupt */
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0x08, 0x00, /* u16 ep_wMaxPacketSize; */
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0x0a, /* u8 ep_bInterval; */
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};
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static void usb_mouse_event(void *opaque,
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int dx1, int dy1, int dz1, int buttons_state)
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{
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USBWacomState *s = opaque;
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s->dx += dx1;
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s->dy += dy1;
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s->dz += dz1;
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s->buttons_state = buttons_state;
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}
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static void usb_wacom_event(void *opaque,
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int x, int y, int dz, int buttons_state)
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{
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USBWacomState *s = opaque;
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s->x = x;
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s->y = y;
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s->dz += dz;
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s->buttons_state = buttons_state;
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}
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static inline int int_clamp(int val, int vmin, int vmax)
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{
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if (val < vmin)
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return vmin;
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else if (val > vmax)
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return vmax;
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else
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return val;
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}
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static int usb_mouse_poll(USBWacomState *s, uint8_t *buf, int len)
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{
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int dx, dy, dz, b, l;
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if (!s->mouse_grabbed) {
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s->eh_entry = qemu_add_mouse_event_handler(usb_mouse_event, s, 0,
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"QEMU PenPartner tablet");
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s->mouse_grabbed = 1;
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}
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dx = int_clamp(s->dx, -128, 127);
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dy = int_clamp(s->dy, -128, 127);
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dz = int_clamp(s->dz, -128, 127);
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s->dx -= dx;
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s->dy -= dy;
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s->dz -= dz;
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b = 0;
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if (s->buttons_state & MOUSE_EVENT_LBUTTON)
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b |= 0x01;
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if (s->buttons_state & MOUSE_EVENT_RBUTTON)
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b |= 0x02;
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if (s->buttons_state & MOUSE_EVENT_MBUTTON)
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b |= 0x04;
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buf[0] = b;
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buf[1] = dx;
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buf[2] = dy;
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l = 3;
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if (len >= 4) {
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buf[3] = dz;
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l = 4;
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}
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return l;
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}
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static int usb_wacom_poll(USBWacomState *s, uint8_t *buf, int len)
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{
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int b;
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if (!s->mouse_grabbed) {
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s->eh_entry = qemu_add_mouse_event_handler(usb_wacom_event, s, 1,
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"QEMU PenPartner tablet");
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s->mouse_grabbed = 1;
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}
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b = 0;
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if (s->buttons_state & MOUSE_EVENT_LBUTTON)
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b |= 0x01;
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if (s->buttons_state & MOUSE_EVENT_RBUTTON)
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b |= 0x02;
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if (s->buttons_state & MOUSE_EVENT_MBUTTON)
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b |= 0x04;
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if (len < 7)
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return 0;
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buf[0] = s->mode;
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buf[5] = 0x00;
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if (b) {
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buf[1] = s->x & 0xff;
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buf[2] = s->x >> 8;
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buf[3] = s->y & 0xff;
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buf[4] = s->y >> 8;
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buf[6] = 0;
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} else {
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buf[1] = 0;
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buf[2] = 0;
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buf[3] = 0;
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buf[4] = 0;
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buf[6] = (unsigned char) -127;
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}
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return 7;
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}
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static void usb_wacom_handle_reset(USBDevice *dev)
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{
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USBWacomState *s = (USBWacomState *) dev;
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s->dx = 0;
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s->dy = 0;
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s->dz = 0;
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s->x = 0;
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s->y = 0;
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s->buttons_state = 0;
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s->mode = WACOM_MODE_HID;
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}
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static int usb_wacom_handle_control(USBDevice *dev, int request, int value,
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int index, int length, uint8_t *data)
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{
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USBWacomState *s = (USBWacomState *) dev;
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int ret = 0;
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switch (request) {
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case DeviceRequest | USB_REQ_GET_STATUS:
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data[0] = (1 << USB_DEVICE_SELF_POWERED) |
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(dev->remote_wakeup << USB_DEVICE_REMOTE_WAKEUP);
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data[1] = 0x00;
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ret = 2;
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break;
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case DeviceOutRequest | USB_REQ_CLEAR_FEATURE:
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if (value == USB_DEVICE_REMOTE_WAKEUP) {
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dev->remote_wakeup = 0;
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} else {
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goto fail;
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}
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ret = 0;
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break;
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case DeviceOutRequest | USB_REQ_SET_FEATURE:
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if (value == USB_DEVICE_REMOTE_WAKEUP) {
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dev->remote_wakeup = 1;
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} else {
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goto fail;
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}
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ret = 0;
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break;
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case DeviceOutRequest | USB_REQ_SET_ADDRESS:
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dev->addr = value;
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ret = 0;
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break;
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case DeviceRequest | USB_REQ_GET_DESCRIPTOR:
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switch (value >> 8) {
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case USB_DT_DEVICE:
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memcpy(data, qemu_wacom_dev_descriptor,
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sizeof(qemu_wacom_dev_descriptor));
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ret = sizeof(qemu_wacom_dev_descriptor);
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break;
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case USB_DT_CONFIG:
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memcpy(data, qemu_wacom_config_descriptor,
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sizeof(qemu_wacom_config_descriptor));
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ret = sizeof(qemu_wacom_config_descriptor);
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break;
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case USB_DT_STRING:
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switch (value & 0xff) {
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case 0:
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/* language ids */
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data[0] = 4;
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data[1] = 3;
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data[2] = 0x09;
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data[3] = 0x04;
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ret = 4;
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break;
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case 1:
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/* serial number */
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ret = set_usb_string(data, "1");
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break;
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case 2:
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ret = set_usb_string(data, "Wacom PenPartner");
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break;
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case 3:
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/* vendor description */
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ret = set_usb_string(data, "QEMU " QEMU_VERSION);
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break;
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case 4:
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ret = set_usb_string(data, "Wacom Tablet");
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break;
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case 5:
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ret = set_usb_string(data, "Endpoint1 Interrupt Pipe");
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break;
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default:
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goto fail;
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}
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break;
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default:
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goto fail;
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}
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break;
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case DeviceRequest | USB_REQ_GET_CONFIGURATION:
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data[0] = 1;
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ret = 1;
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break;
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case DeviceOutRequest | USB_REQ_SET_CONFIGURATION:
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ret = 0;
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break;
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case DeviceRequest | USB_REQ_GET_INTERFACE:
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data[0] = 0;
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ret = 1;
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break;
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case DeviceOutRequest | USB_REQ_SET_INTERFACE:
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ret = 0;
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break;
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case WACOM_SET_REPORT:
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qemu_remove_mouse_event_handler(s->eh_entry);
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s->mouse_grabbed = 0;
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s->mode = data[0];
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ret = 0;
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break;
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case WACOM_GET_REPORT:
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data[0] = 0;
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data[1] = s->mode;
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ret = 2;
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break;
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/* USB HID requests */
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case HID_GET_REPORT:
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if (s->mode == WACOM_MODE_HID)
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ret = usb_mouse_poll(s, data, length);
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else if (s->mode == WACOM_MODE_WACOM)
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ret = usb_wacom_poll(s, data, length);
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break;
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case HID_SET_IDLE:
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ret = 0;
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break;
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default:
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fail:
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ret = USB_RET_STALL;
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break;
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}
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return ret;
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}
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static int usb_wacom_handle_data(USBDevice *dev, USBPacket *p)
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{
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USBWacomState *s = (USBWacomState *) dev;
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int ret = 0;
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switch (p->pid) {
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case USB_TOKEN_IN:
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if (p->devep == 1) {
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if (s->mode == WACOM_MODE_HID)
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ret = usb_mouse_poll(s, p->data, p->len);
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else if (s->mode == WACOM_MODE_WACOM)
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ret = usb_wacom_poll(s, p->data, p->len);
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break;
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}
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/* Fall through. */
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case USB_TOKEN_OUT:
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default:
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ret = USB_RET_STALL;
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break;
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}
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return ret;
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}
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static void usb_wacom_handle_destroy(USBDevice *dev)
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{
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USBWacomState *s = (USBWacomState *) dev;
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qemu_remove_mouse_event_handler(s->eh_entry);
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qemu_free(s);
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}
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USBDevice *usb_wacom_init(void)
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{
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USBWacomState *s;
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s = qemu_mallocz(sizeof(USBWacomState));
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if (!s)
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return NULL;
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s->dev.speed = USB_SPEED_FULL;
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s->dev.handle_packet = usb_generic_handle_packet;
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s->dev.handle_reset = usb_wacom_handle_reset;
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s->dev.handle_control = usb_wacom_handle_control;
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s->dev.handle_data = usb_wacom_handle_data;
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s->dev.handle_destroy = usb_wacom_handle_destroy;
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pstrcpy(s->dev.devname, sizeof(s->dev.devname),
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"QEMU PenPartner Tablet");
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return (USBDevice *) s;
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}
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3
hw/usb.h
3
hw/usb.h
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@ -221,3 +221,6 @@ USBDevice *usb_tablet_init(void);
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/* usb-msd.c */
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USBDevice *usb_msd_init(const char *filename);
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/* usb-wacom.c */
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USBDevice *usb_wacom_init(void);
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@ -1358,6 +1358,10 @@ Pass through the host device identified by @var{bus.addr}
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@item @code{host:vendor_id:product_id}
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Pass through the host device identified by @var{vendor_id:product_id}
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(Linux only)
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@item @code{wacom-tablet}
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Virtual Wacom PenPartner tablet. This device is similar to the @code{tablet}
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above but it can be used with the tslib library because in addition to touch
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coordinates it reports touch pressure.
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@end table
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@node host_usb_devices
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2
vl.c
2
vl.c
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@ -4321,6 +4321,8 @@ static int usb_device_add(const char *devname)
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dev = usb_tablet_init();
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} else if (strstart(devname, "disk:", &p)) {
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dev = usb_msd_init(p);
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} else if (!strcmp(devname, "wacom-tablet")) {
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dev = usb_wacom_init();
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} else {
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return -1;
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}
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