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authorPeter Wu <peter@lekensteyn.nl>2014-03-11 11:16:39 +0100
committerPeter Wu <peter@lekensteyn.nl>2014-03-16 00:10:06 +0100
commit0719b077e2ba550a44e830e55caa30eb84373612 (patch)
tree5bd00b036ce99e4275c9a62fd90e81241243d34e /hw/usb/dev-unifying.c
parente6383080977ef1c761a00005ed533695acbe81e1 (diff)
downloadqemu-0719b077e2ba550a44e830e55caa30eb84373612.tar.gz
unifying: WIP for Logitech Unifying Receiver emulation
Based on hw/usb/dev-wacom.c
Diffstat (limited to 'hw/usb/dev-unifying.c')
-rw-r--r--hw/usb/dev-unifying.c668
1 files changed, 668 insertions, 0 deletions
diff --git a/hw/usb/dev-unifying.c b/hw/usb/dev-unifying.c
new file mode 100644
index 0000000000..9e79ac7f7a
--- /dev/null
+++ b/hw/usb/dev-unifying.c
@@ -0,0 +1,668 @@
+/*
+ * Logitech Unifying recever emulation.
+ *
+ * Copyright (c) 2014 Peter Wu <peter@lekensteyn.nl>
+ *
+ * Based on: hw/usb/dev-wacom.c:
+ * 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"
+
+#if 0
+/* Interface requests */
+#define LTUNIFY_GET_REPORT 0x2101
+#define LTUNIFY_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
+
+#endif
+typedef struct USBLtunifyState {
+ USBDevice dev;
+ USBEndpoint *intr;
+#if 0
+ QEMUPutMouseEntry *eh_entry;
+ int dx, dy, dz, buttons_state;
+ int x, y;
+ int mouse_grabbed;
+ enum {
+ LTUNIFY_MODE_HID = 1,
+ LTUNIFY_MODE_LTUNIFY = 2,
+ } mode;
+ uint8_t idle;
+ int changed;
+#endif
+} USBLtunifyState;
+
+/* descriptors are retrieved with usbhid-dump (need to unbind interfaces from
+ * usbhid) and prettified with hidrd 0.2 */
+
+/* keyboard */
+static const uint8_t iface0_hid_report_descriptor[] = {
+ 0x05, 0x01, /* Usage Page (Desktop), */
+ 0x09, 0x06, /* Usage (Keyboard), */
+ 0xA1, 0x01, /* Collection (Application), */
+ 0x05, 0x07, /* Usage Page (Keyboard), */
+ 0x19, 0xE0, /* Usage Minimum (KB Leftcontrol), */
+ 0x29, 0xE7, /* Usage Maximum (KB Right GUI), */
+ 0x15, 0x00, /* Logical Minimum (0), */
+ 0x25, 0x01, /* Logical Maximum (1), */
+ 0x75, 0x01, /* Report Size (1), */
+ 0x95, 0x08, /* Report Count (8), */
+ 0x81, 0x02, /* Input (Variable), */
+ 0x81, 0x03, /* Input (Constant, Variable), */
+ 0x95, 0x05, /* Report Count (5), */
+ 0x05, 0x08, /* Usage Page (LED), */
+ 0x19, 0x01, /* Usage Minimum (01h), */
+ 0x29, 0x05, /* Usage Maximum (05h), */
+ 0x91, 0x02, /* Output (Variable), */
+ 0x95, 0x01, /* Report Count (1), */
+ 0x75, 0x03, /* Report Size (3), */
+ 0x91, 0x01, /* Output (Constant), */
+ 0x95, 0x06, /* Report Count (6), */
+ 0x75, 0x08, /* Report Size (8), */
+ 0x15, 0x00, /* Logical Minimum (0), */
+ 0x26, 0xA4, 0x00, /* Logical Maximum (164), */
+ 0x05, 0x07, /* Usage Page (Keyboard), */
+ 0x19, 0x00, /* Usage Minimum (None), */
+ 0x2A, 0xA4, 0x00, /* Usage Maximum (KB ExSel), */
+ 0x81, 0x00, /* Input, */
+ 0xC0 /* End Collection */
+};
+
+/* mouse, multimedia, power, media center */
+static const uint8_t iface1_hid_report_descriptor[] = {
+ 0x05, 0x01, /* Usage Page (Desktop), */
+ 0x09, 0x02, /* Usage (Mouse), */
+ 0xA1, 0x01, /* Collection (Application), */
+ 0x85, 0x02, /* Report ID (2), */
+ 0x09, 0x01, /* Usage (Pointer), */
+ 0xA1, 0x00, /* Collection (Physical), */
+ 0x05, 0x09, /* Usage Page (Button), */
+ 0x19, 0x01, /* Usage Minimum (01h), */
+ 0x29, 0x10, /* Usage Maximum (10h), */
+ 0x15, 0x00, /* Logical Minimum (0), */
+ 0x25, 0x01, /* Logical Maximum (1), */
+ 0x95, 0x10, /* Report Count (16), */
+ 0x75, 0x01, /* Report Size (1), */
+ 0x81, 0x02, /* Input (Variable), */
+ 0x05, 0x01, /* Usage Page (Desktop), */
+ 0x16, 0x01, 0xF8, /* Logical Minimum (-2047), */
+ 0x26, 0xFF, 0x07, /* Logical Maximum (2047), */
+ 0x75, 0x0C, /* Report Size (12), */
+ 0x95, 0x02, /* Report Count (2), */
+ 0x09, 0x30, /* Usage (X), */
+ 0x09, 0x31, /* Usage (Y), */
+ 0x81, 0x06, /* Input (Variable, Relative), */
+ 0x15, 0x81, /* Logical Minimum (-127), */
+ 0x25, 0x7F, /* Logical Maximum (127), */
+ 0x75, 0x08, /* Report Size (8), */
+ 0x95, 0x01, /* Report Count (1), */
+ 0x09, 0x38, /* Usage (Wheel), */
+ 0x81, 0x06, /* Input (Variable, Relative), */
+ 0x05, 0x0C, /* Usage Page (Consumer), */
+ 0x0A, 0x38, 0x02, /* Usage (AC Pan), */
+ 0x95, 0x01, /* Report Count (1), */
+ 0x81, 0x06, /* Input (Variable, Relative), */
+ 0xC0, /* End Collection, */
+ 0xC0, /* End Collection, */
+ 0x05, 0x0C, /* Usage Page (Consumer), */
+ 0x09, 0x01, /* Usage (Consumer Control), */
+ 0xA1, 0x01, /* Collection (Application), */
+ 0x85, 0x03, /* Report ID (3), */
+ 0x75, 0x10, /* Report Size (16), */
+ 0x95, 0x02, /* Report Count (2), */
+ 0x15, 0x01, /* Logical Minimum (1), */
+ 0x26, 0x8C, 0x02, /* Logical Maximum (652), */
+ 0x19, 0x01, /* Usage Minimum (Consumer Control), */
+ 0x2A, 0x8C, 0x02, /* Usage Maximum (AC Send), */
+ 0x81, 0x00, /* Input, */
+ 0xC0, /* End Collection, */
+ 0x05, 0x01, /* Usage Page (Desktop), */
+ 0x09, 0x80, /* Usage (Sys Control), */
+ 0xA1, 0x01, /* Collection (Application), */
+ 0x85, 0x04, /* Report ID (4), */
+ 0x75, 0x02, /* Report Size (2), */
+ 0x95, 0x01, /* Report Count (1), */
+ 0x15, 0x01, /* Logical Minimum (1), */
+ 0x25, 0x03, /* Logical Maximum (3), */
+ 0x09, 0x82, /* Usage (Sys Sleep), */
+ 0x09, 0x81, /* Usage (Sys Power Down), */
+ 0x09, 0x83, /* Usage (Sys Wake Up), */
+ 0x81, 0x60, /* Input (No Preferred, Null State), */
+ 0x75, 0x06, /* Report Size (6), */
+ 0x81, 0x03, /* Input (Constant, Variable), */
+ 0xC0, /* End Collection, */
+ 0x06, 0xBC, 0xFF, /* Usage Page (FFBCh), */
+ 0x09, 0x88, /* Usage (88h), */
+ 0xA1, 0x01, /* Collection (Application), */
+ 0x85, 0x08, /* Report ID (8), */
+ 0x19, 0x01, /* Usage Minimum (01h), */
+ 0x29, 0xFF, /* Usage Maximum (FFh), */
+ 0x15, 0x01, /* Logical Minimum (1), */
+ 0x26, 0xFF, 0x00, /* Logical Maximum (255), */
+ 0x75, 0x08, /* Report Size (8), */
+ 0x95, 0x01, /* Report Count (1), */
+ 0x81, 0x00, /* Input, */
+ 0xC0 /* End Collection */
+};
+
+/* vendor specific: short HID++, long HID++, DJ */
+static const uint8_t iface2_hid_report_descriptor[] = {
+ 0x06, 0x00, 0xFF, /* Usage Page (FF00h), */
+ 0x09, 0x01, /* Usage (01h), */
+ 0xA1, 0x01, /* Collection (Application), */
+ 0x85, 0x10, /* Report ID (16), */
+ 0x75, 0x08, /* Report Size (8), */
+ 0x95, 0x06, /* Report Count (6), */
+ 0x15, 0x00, /* Logical Minimum (0), */
+ 0x26, 0xFF, 0x00, /* Logical Maximum (255), */
+ 0x09, 0x01, /* Usage (01h), */
+ 0x81, 0x00, /* Input, */
+ 0x09, 0x01, /* Usage (01h), */
+ 0x91, 0x00, /* Output, */
+ 0xC0, /* End Collection, */
+ 0x06, 0x00, 0xFF, /* Usage Page (FF00h), */
+ 0x09, 0x02, /* Usage (02h), */
+ 0xA1, 0x01, /* Collection (Application), */
+ 0x85, 0x11, /* Report ID (17), */
+ 0x75, 0x08, /* Report Size (8), */
+ 0x95, 0x13, /* Report Count (19), */
+ 0x15, 0x00, /* Logical Minimum (0), */
+ 0x26, 0xFF, 0x00, /* Logical Maximum (255), */
+ 0x09, 0x02, /* Usage (02h), */
+ 0x81, 0x00, /* Input, */
+ 0x09, 0x02, /* Usage (02h), */
+ 0x91, 0x00, /* Output, */
+ 0xC0, /* End Collection, */
+ 0x06, 0x00, 0xFF, /* Usage Page (FF00h), */
+ 0x09, 0x04, /* Usage (04h), */
+ 0xA1, 0x01, /* Collection (Application), */
+ 0x85, 0x20, /* Report ID (32), */
+ 0x75, 0x08, /* Report Size (8), */
+ 0x95, 0x0E, /* Report Count (14), */
+ 0x15, 0x00, /* Logical Minimum (0), */
+ 0x26, 0xFF, 0x00, /* Logical Maximum (255), */
+ 0x09, 0x41, /* Usage (41h), */
+ 0x81, 0x00, /* Input, */
+ 0x09, 0x41, /* Usage (41h), */
+ 0x91, 0x00, /* Output, */
+ 0x85, 0x21, /* Report ID (33), */
+ 0x95, 0x1F, /* Report Count (31), */
+ 0x15, 0x00, /* Logical Minimum (0), */
+ 0x26, 0xFF, 0x00, /* Logical Maximum (255), */
+ 0x09, 0x42, /* Usage (42h), */
+ 0x81, 0x00, /* Input, */
+ 0x09, 0x42, /* Usage (42h), */
+ 0x91, 0x00, /* Output, */
+ 0xC0 /* End Collection */
+};
+
+enum {
+ STR_MANUFACTURER = 1,
+ STR_PRODUCT = 2,
+ /* string descriptor 3 is not defined */
+ STR_CONFIG_FULL = 4,
+};
+
+static const USBDescStrings desc_strings = {
+ [STR_MANUFACTURER] = "Logitech",
+ [STR_PRODUCT] = "USB Receiver",
+ // Other string: RQR24.00_B0018, bcdDevice = 24.00, bMaxPacketSize0 = 32
+ [STR_CONFIG_FULL] = "RQR12.01_B0019",
+};
+
+static const USBDescIface desc_iface_ltunify[] = {
+ {
+ /* DJ disabled: keyboard, DJ enabled: unused */
+ .bInterfaceNumber = 0,
+ .bNumEndpoints = 1,
+ .bInterfaceClass = USB_CLASS_HID,
+ .bInterfaceSubClass = 0x01, /* boot */
+ .bInterfaceProtocol = 0x01, /* Keyboard */
+ .ndesc = 1,
+ .descs = (USBDescOther[]) {
+ {
+ /* HID descriptor */
+ .data = (uint8_t[]) {
+ 0x09, /* u8 bLength */
+ 0x21, /* u8 bDescriptorType */
+ 0x11, 0x01, /* u16 HID_class */
+ 0x00, /* u8 country_code */
+ 0x01, /* u8 num_descriptors */
+ 0x22, /* u8 type: Report */
+ 59, 0, /* u16 len */
+ },
+ },
+ },
+ .eps = (USBDescEndpoint[]) {
+ {
+ .bEndpointAddress = USB_DIR_IN | 0x01,
+ .bmAttributes = USB_ENDPOINT_XFER_INT,
+ .wMaxPacketSize = 8,
+ .bInterval = 8,
+ },
+ },
+ },{
+ /* DJ disabled: mouse, multimedia, power, media center. DJ enabled:
+ * unused */
+ .bInterfaceNumber = 1,
+ .bNumEndpoints = 1,
+ .bInterfaceClass = USB_CLASS_HID,
+ .bInterfaceSubClass = 0x01, /* boot */
+ .bInterfaceProtocol = 0x02, /* Mouse */
+ .ndesc = 1,
+ .descs = (USBDescOther[]) {
+ {
+ /* HID descriptor */
+ .data = (uint8_t[]) {
+ 0x09, /* u8 bLength */
+ 0x21, /* u8 bDescriptorType */
+ 0x11, 0x01, /* u16 HID_class */
+ 0x00, /* u8 country_code */
+ 0x01, /* u8 num_descriptors */
+ 0x22, /* u8 type: Report */
+ 148, 0, /* u16 len */
+ },
+ },
+ },
+ .eps = (USBDescEndpoint[]) {
+ {
+ .bEndpointAddress = USB_DIR_IN | 0x02,
+ .bmAttributes = USB_ENDPOINT_XFER_INT,
+ .wMaxPacketSize = 8,
+ .bInterval = 2,
+ },
+ },
+ },{
+ /* Short HID++, Long HID++, DJ (if enabled) */
+ .bInterfaceNumber = 2,
+ .bNumEndpoints = 1,
+ .bInterfaceClass = USB_CLASS_HID,
+ .bInterfaceSubClass = 0x00, /* No Subclass */
+ .bInterfaceProtocol = 0x00, /* None */
+ .ndesc = 1,
+ .descs = (USBDescOther[]) {
+ {
+ /* HID descriptor */
+ .data = (uint8_t[]) {
+ 0x09, /* u8 bLength */
+ 0x21, /* u8 bDescriptorType */
+ 0x11, 0x01, /* u16 HID_class */
+ 0x00, /* u8 country_code */
+ 0x01, /* u8 num_descriptors */
+ 0x22, /* u8 type: Report */
+ 98, 0, /* u16 len */
+ },
+ },
+ },
+ .eps = (USBDescEndpoint[]) {
+ {
+ .bEndpointAddress = USB_DIR_IN | 0x03,
+ .bmAttributes = USB_ENDPOINT_XFER_INT,
+ .wMaxPacketSize = 0x20,
+ .bInterval = 2,
+ },
+ },
+ },
+};
+
+static const USBDescDevice desc_device_ltunify = {
+ .bcdUSB = 0x0200,
+ .bMaxPacketSize0 = 8,
+ .bNumConfigurations = 1,
+ .confs = (USBDescConfig[]) {
+ {
+ .bNumInterfaces = 3,
+ .bConfigurationValue = 1,
+ .iConfiguration = STR_CONFIG_FULL,
+ // TODO: USB_CFG_ATT_WAKEUP is reported, but how to handle it?
+ .bmAttributes = USB_CFG_ATT_ONE | USB_CFG_ATT_WAKEUP,
+ .bMaxPower = 49, /* 98 mA */
+ .nif = ARRAY_SIZE(desc_iface_ltunify),
+ .ifs = desc_iface_ltunify,
+ },
+ },
+};
+
+static const USBDesc desc_ltunify = {
+ .id = {
+ .idVendor = 0x046d,
+ .idProduct = 0xc52b,
+ .bcdDevice = 0x1201,
+ .iManufacturer = STR_MANUFACTURER,
+ .iProduct = STR_PRODUCT,
+ .iSerialNumber = 0, /* device does not have such a serial number */
+ },
+ .full = &desc_device_ltunify,
+ .str = desc_strings,
+};
+
+#if 0
+static void usb_mouse_event(void *opaque,
+ int dx1, int dy1, int dz1, int buttons_state)
+{
+ USBLtunifyState *s = opaque;
+
+ s->dx += dx1;
+ s->dy += dy1;
+ s->dz += dz1;
+ s->buttons_state = buttons_state;
+ s->changed = 1;
+ usb_wakeup(s->intr, 0);
+}
+
+static void usb_ltunify_event(void *opaque,
+ int x, int y, int dz, int buttons_state)
+{
+ USBLtunifyState *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, 0);
+}
+
+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(USBLtunifyState *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_ltunify_poll(USBLtunifyState *s, uint8_t *buf, int len)
+{
+ int b;
+
+ if (!s->mouse_grabbed) {
+ s->eh_entry = qemu_add_mouse_event_handler(usb_ltunify_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_ltunify_handle_reset(USBDevice *dev)
+{
+ USBLtunifyState *s = (USBLtunifyState *) dev;
+
+ s->dx = 0;
+ s->dy = 0;
+ s->dz = 0;
+ s->x = 0;
+ s->y = 0;
+ s->buttons_state = 0;
+ s->mode = LTUNIFY_MODE_HID;
+}
+#endif
+
+static void usb_ltunify_handle_control(USBDevice *dev, USBPacket *p,
+ int request, int value, int index, int length, uint8_t *data)
+{
+ //USBLtunifyState *s = (USBLtunifyState *) dev;
+ int ret;
+ int desc_len = 0;
+ const uint8_t *desc = NULL;
+
+ /* handle basic requests such as DeviceRequest | USB_REQ_GET_DESCRIPTOR */
+ ret = usb_desc_handle_control(dev, p, request, value, index, length, data);
+ if (ret >= 0) {
+ return;
+ }
+
+ switch (request) {
+ case InterfaceRequest | USB_REQ_GET_DESCRIPTOR:
+ // look for class descriptor type Report (0x22), descriptor index is
+ // always 0 for class descriptor type other than Physical descriptor.
+ if (value == 0x2200) {
+ // index: interface number
+ switch (index) {
+ case 0:
+ desc = iface0_hid_report_descriptor;
+ desc_len = sizeof(iface0_hid_report_descriptor);
+ break;
+ case 1:
+ desc = iface1_hid_report_descriptor;
+ desc_len = sizeof(iface1_hid_report_descriptor);
+ break;
+ case 2:
+ desc = iface2_hid_report_descriptor;
+ desc_len = sizeof(iface2_hid_report_descriptor);
+ break;
+ }
+
+ if (desc_len > 0) {
+ if (desc_len > length) {
+ desc_len = length;
+ }
+ memcpy(data, desc, desc_len);
+ p->actual_length = desc_len;
+ }
+ }
+ break;
+#if 0
+ case LTUNIFY_SET_REPORT:
+ if (s->mouse_grabbed) {
+ qemu_remove_mouse_event_handler(s->eh_entry);
+ s->mouse_grabbed = 0;
+ }
+ s->mode = data[0];
+ break;
+ case LTUNIFY_GET_REPORT:
+ data[0] = 0;
+ data[1] = s->mode;
+ p->actual_length = 2;
+ break;
+ /* USB HID requests */
+ case HID_GET_REPORT:
+ if (s->mode == LTUNIFY_MODE_HID)
+ p->actual_length = usb_mouse_poll(s, data, length);
+ else if (s->mode == LTUNIFY_MODE_LTUNIFY)
+ p->actual_length = usb_ltunify_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;
+#endif
+ default:
+ p->status = USB_RET_STALL;
+ break;
+ }
+}
+
+#if 0
+static void usb_ltunify_handle_data(USBDevice *dev, USBPacket *p)
+{
+ USBLtunifyState *s = (USBLtunifyState *) 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 == LTUNIFY_MODE_HID)
+ len = usb_mouse_poll(s, buf, p->iov.size);
+ else if (s->mode == LTUNIFY_MODE_LTUNIFY)
+ len = usb_ltunify_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_ltunify_handle_destroy(USBDevice *dev)
+{
+ USBLtunifyState *s = (USBLtunifyState *) dev;
+
+ if (s->mouse_grabbed) {
+ qemu_remove_mouse_event_handler(s->eh_entry);
+ s->mouse_grabbed = 0;
+ }
+}
+#endif
+
+static int usb_ltunify_initfn(USBDevice *dev)
+{
+ USBLtunifyState *s = DO_UPCAST(USBLtunifyState, dev, dev);
+ // no idea what this is used for:
+ //usb_desc_create_serial(dev);
+ usb_desc_init(dev);
+ s->intr = usb_ep_get(dev, USB_TOKEN_IN, 1);
+ // WTF is this for:
+ //s->changed = 1;
+ return 0;
+}
+
+static const VMStateDescription vmstate_usb_ltunify = {
+ .name = "usb-ltunify",
+ .unmigratable = 1,
+};
+
+static void usb_ltunify_class_init(ObjectClass *klass, void *data)
+{
+ DeviceClass *dc = DEVICE_CLASS(klass);
+ USBDeviceClass *uc = USB_DEVICE_CLASS(klass);
+
+ uc->product_desc = "QEMU Logitech Unifying Receiver";
+ uc->usb_desc = &desc_ltunify;
+ uc->init = usb_ltunify_initfn;
+#if 0
+ uc->handle_reset = usb_ltunify_handle_reset;
+#endif
+ uc->handle_control = usb_ltunify_handle_control;
+#if 0
+ uc->handle_data = usb_ltunify_handle_data;
+ uc->handle_destroy = usb_ltunify_handle_destroy;
+#endif
+ // uc->handle_attach = usb_desc_attach; ?? found in dev-hid.c
+ set_bit(DEVICE_CATEGORY_INPUT, dc->categories);
+ // TODO: is this mecessary?
+ dc->desc = "QEMU Logitech Unifying Receiver";
+ dc->vmsd = &vmstate_usb_ltunify;
+}
+
+static const TypeInfo ltunify_info = {
+ .name = "usb-ltunify-receiver",
+ .parent = TYPE_USB_DEVICE,
+ .instance_size = sizeof(USBLtunifyState),
+ .class_init = usb_ltunify_class_init,
+};
+
+static void usb_ltunify_register_types(void)
+{
+ type_register_static(&ltunify_info);
+ usb_legacy_register("usb-ltunify-receiver", "ltunify-receiver", NULL);
+}
+
+type_init(usb_ltunify_register_types)