/* * QEMU USB HID devices * * Copyright (c) 2005 Fabrice Bellard * Copyright (c) 2007 OpenMoko, Inc. (andrew@openedhand.com) * * 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" #include "usb-desc.h" #include "qemu-timer.h" /* HID interface requests */ #define GET_REPORT 0xa101 #define GET_IDLE 0xa102 #define GET_PROTOCOL 0xa103 #define SET_REPORT 0x2109 #define SET_IDLE 0x210a #define SET_PROTOCOL 0x210b /* HID descriptor types */ #define USB_DT_HID 0x21 #define USB_DT_REPORT 0x22 #define USB_DT_PHY 0x23 #define USB_MOUSE 1 #define USB_TABLET 2 #define USB_KEYBOARD 3 typedef struct USBPointerEvent { int32_t xdx, ydy; /* relative iff it's a mouse, otherwise absolute */ int32_t dz, buttons_state; } USBPointerEvent; #define QUEUE_LENGTH 16 /* should be enough for a triple-click */ #define QUEUE_MASK (QUEUE_LENGTH-1u) #define QUEUE_INCR(v) ((v)++, (v) &= QUEUE_MASK) typedef struct USBMouseState { USBPointerEvent queue[QUEUE_LENGTH]; int mouse_grabbed; QEMUPutMouseEntry *eh_entry; } USBMouseState; typedef struct USBKeyboardState { uint32_t keycodes[QUEUE_LENGTH]; uint16_t modifiers; uint8_t leds; uint8_t key[16]; int32_t keys; } USBKeyboardState; typedef struct USBHIDState { USBDevice dev; union { USBMouseState ptr; USBKeyboardState kbd; }; uint32_t head; /* index into circular queue */ uint32_t n; int kind; int32_t protocol; uint8_t idle; int64_t next_idle_clock; int changed; void *datain_opaque; void (*datain)(void *); } USBHIDState; enum { STR_MANUFACTURER = 1, STR_PRODUCT_MOUSE, STR_PRODUCT_TABLET, STR_PRODUCT_KEYBOARD, STR_SERIALNUMBER, STR_CONFIG_MOUSE, STR_CONFIG_TABLET, STR_CONFIG_KEYBOARD, }; static const USBDescStrings desc_strings = { [STR_MANUFACTURER] = "QEMU " QEMU_VERSION, [STR_PRODUCT_MOUSE] = "QEMU USB Mouse", [STR_PRODUCT_TABLET] = "QEMU USB Tablet", [STR_PRODUCT_KEYBOARD] = "QEMU USB Keyboard", [STR_SERIALNUMBER] = "42", /* == remote wakeup works */ [STR_CONFIG_MOUSE] = "HID Mouse", [STR_CONFIG_TABLET] = "HID Tablet", [STR_CONFIG_KEYBOARD] = "HID Keyboard", }; static const USBDescIface desc_iface_mouse = { .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 */ USB_DT_HID, /* u8 bDescriptorType */ 0x01, 0x00, /* u16 HID_class */ 0x00, /* u8 country_code */ 0x01, /* u8 num_descriptors */ USB_DT_REPORT, /* u8 type: Report */ 52, 0, /* u16 len */ }, }, }, .eps = (USBDescEndpoint[]) { { .bEndpointAddress = USB_DIR_IN | 0x01, .bmAttributes = USB_ENDPOINT_XFER_INT, .wMaxPacketSize = 4, .bInterval = 0x0a, }, }, }; static const USBDescIface desc_iface_tablet = { .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 */ USB_DT_HID, /* u8 bDescriptorType */ 0x01, 0x00, /* u16 HID_class */ 0x00, /* u8 country_code */ 0x01, /* u8 num_descriptors */ USB_DT_REPORT, /* u8 type: Report */ 74, 0, /* u16 len */ }, }, }, .eps = (USBDescEndpoint[]) { { .bEndpointAddress = USB_DIR_IN | 0x01, .bmAttributes = USB_ENDPOINT_XFER_INT, .wMaxPacketSize = 8, .bInterval = 0x0a, }, }, }; static const USBDescIface desc_iface_keyboard = { .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 */ USB_DT_HID, /* u8 bDescriptorType */ 0x11, 0x01, /* u16 HID_class */ 0x00, /* u8 country_code */ 0x01, /* u8 num_descriptors */ USB_DT_REPORT, /* u8 type: Report */ 0x3f, 0, /* u16 len */ }, }, }, .eps = (USBDescEndpoint[]) { { .bEndpointAddress = USB_DIR_IN | 0x01, .bmAttributes = USB_ENDPOINT_XFER_INT, .wMaxPacketSize = 8, .bInterval = 0x0a, }, }, }; static const USBDescDevice desc_device_mouse = { .bcdUSB = 0x0100, .bMaxPacketSize0 = 8, .bNumConfigurations = 1, .confs = (USBDescConfig[]) { { .bNumInterfaces = 1, .bConfigurationValue = 1, .iConfiguration = STR_CONFIG_MOUSE, .bmAttributes = 0xa0, .bMaxPower = 50, .nif = 1, .ifs = &desc_iface_mouse, }, }, }; static const USBDescDevice desc_device_tablet = { .bcdUSB = 0x0100, .bMaxPacketSize0 = 8, .bNumConfigurations = 1, .confs = (USBDescConfig[]) { { .bNumInterfaces = 1, .bConfigurationValue = 1, .iConfiguration = STR_CONFIG_TABLET, .bmAttributes = 0xa0, .bMaxPower = 50, .nif = 1, .ifs = &desc_iface_tablet, }, }, }; static const USBDescDevice desc_device_keyboard = { .bcdUSB = 0x0100, .bMaxPacketSize0 = 8, .bNumConfigurations = 1, .confs = (USBDescConfig[]) { { .bNumInterfaces = 1, .bConfigurationValue = 1, .iConfiguration = STR_CONFIG_KEYBOARD, .bmAttributes = 0xa0, .bMaxPower = 50, .nif = 1, .ifs = &desc_iface_keyboard, }, }, }; static const USBDesc desc_mouse = { .id = { .idVendor = 0x0627, .idProduct = 0x0001, .bcdDevice = 0, .iManufacturer = STR_MANUFACTURER, .iProduct = STR_PRODUCT_MOUSE, .iSerialNumber = STR_SERIALNUMBER, }, .full = &desc_device_mouse, .str = desc_strings, }; static const USBDesc desc_tablet = { .id = { .idVendor = 0x0627, .idProduct = 0x0001, .bcdDevice = 0, .iManufacturer = STR_MANUFACTURER, .iProduct = STR_PRODUCT_TABLET, .iSerialNumber = STR_SERIALNUMBER, }, .full = &desc_device_tablet, .str = desc_strings, }; static const USBDesc desc_keyboard = { .id = { .idVendor = 0x0627, .idProduct = 0x0001, .bcdDevice = 0, .iManufacturer = STR_MANUFACTURER, .iProduct = STR_PRODUCT_KEYBOARD, .iSerialNumber = STR_SERIALNUMBER, }, .full = &desc_device_keyboard, .str = desc_strings, }; static const uint8_t qemu_mouse_hid_report_descriptor[] = { 0x05, 0x01, /* Usage Page (Generic Desktop) */ 0x09, 0x02, /* Usage (Mouse) */ 0xa1, 0x01, /* Collection (Application) */ 0x09, 0x01, /* Usage (Pointer) */ 0xa1, 0x00, /* Collection (Physical) */ 0x05, 0x09, /* Usage Page (Button) */ 0x19, 0x01, /* Usage Minimum (1) */ 0x29, 0x03, /* Usage Maximum (3) */ 0x15, 0x00, /* Logical Minimum (0) */ 0x25, 0x01, /* Logical Maximum (1) */ 0x95, 0x03, /* Report Count (3) */ 0x75, 0x01, /* Report Size (1) */ 0x81, 0x02, /* Input (Data, Variable, Absolute) */ 0x95, 0x01, /* Report Count (1) */ 0x75, 0x05, /* Report Size (5) */ 0x81, 0x01, /* Input (Constant) */ 0x05, 0x01, /* Usage Page (Generic Desktop) */ 0x09, 0x30, /* Usage (X) */ 0x09, 0x31, /* Usage (Y) */ 0x09, 0x38, /* Usage (Wheel) */ 0x15, 0x81, /* Logical Minimum (-0x7f) */ 0x25, 0x7f, /* Logical Maximum (0x7f) */ 0x75, 0x08, /* Report Size (8) */ 0x95, 0x03, /* Report Count (3) */ 0x81, 0x06, /* Input (Data, Variable, Relative) */ 0xc0, /* End Collection */ 0xc0, /* End Collection */ }; static const uint8_t qemu_tablet_hid_report_descriptor[] = { 0x05, 0x01, /* Usage Page (Generic Desktop) */ 0x09, 0x01, /* Usage (Pointer) */ 0xa1, 0x01, /* Collection (Application) */ 0x09, 0x01, /* Usage (Pointer) */ 0xa1, 0x00, /* Collection (Physical) */ 0x05, 0x09, /* Usage Page (Button) */ 0x19, 0x01, /* Usage Minimum (1) */ 0x29, 0x03, /* Usage Maximum (3) */ 0x15, 0x00, /* Logical Minimum (0) */ 0x25, 0x01, /* Logical Maximum (1) */ 0x95, 0x03, /* Report Count (3) */ 0x75, 0x01, /* Report Size (1) */ 0x81, 0x02, /* Input (Data, Variable, Absolute) */ 0x95, 0x01, /* Report Count (1) */ 0x75, 0x05, /* Report Size (5) */ 0x81, 0x01, /* Input (Constant) */ 0x05, 0x01, /* Usage Page (Generic Desktop) */ 0x09, 0x30, /* Usage (X) */ 0x09, 0x31, /* Usage (Y) */ 0x15, 0x00, /* Logical Minimum (0) */ 0x26, 0xff, 0x7f, /* Logical Maximum (0x7fff) */ 0x35, 0x00, /* Physical Minimum (0) */ 0x46, 0xff, 0x7f, /* Physical Maximum (0x7fff) */ 0x75, 0x10, /* Report Size (16) */ 0x95, 0x02, /* Report Count (2) */ 0x81, 0x02, /* Input (Data, Variable, Absolute) */ 0x05, 0x01, /* Usage Page (Generic Desktop) */ 0x09, 0x38, /* Usage (Wheel) */ 0x15, 0x81, /* Logical Minimum (-0x7f) */ 0x25, 0x7f, /* Logical Maximum (0x7f) */ 0x35, 0x00, /* Physical Minimum (same as logical) */ 0x45, 0x00, /* Physical Maximum (same as logical) */ 0x75, 0x08, /* Report Size (8) */ 0x95, 0x01, /* Report Count (1) */ 0x81, 0x06, /* Input (Data, Variable, Relative) */ 0xc0, /* End Collection */ 0xc0, /* End Collection */ }; static const uint8_t qemu_keyboard_hid_report_descriptor[] = { 0x05, 0x01, /* Usage Page (Generic Desktop) */ 0x09, 0x06, /* Usage (Keyboard) */ 0xa1, 0x01, /* Collection (Application) */ 0x75, 0x01, /* Report Size (1) */ 0x95, 0x08, /* Report Count (8) */ 0x05, 0x07, /* Usage Page (Key Codes) */ 0x19, 0xe0, /* Usage Minimum (224) */ 0x29, 0xe7, /* Usage Maximum (231) */ 0x15, 0x00, /* Logical Minimum (0) */ 0x25, 0x01, /* Logical Maximum (1) */ 0x81, 0x02, /* Input (Data, Variable, Absolute) */ 0x95, 0x01, /* Report Count (1) */ 0x75, 0x08, /* Report Size (8) */ 0x81, 0x01, /* Input (Constant) */ 0x95, 0x05, /* Report Count (5) */ 0x75, 0x01, /* Report Size (1) */ 0x05, 0x08, /* Usage Page (LEDs) */ 0x19, 0x01, /* Usage Minimum (1) */ 0x29, 0x05, /* Usage Maximum (5) */ 0x91, 0x02, /* Output (Data, Variable, Absolute) */ 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) */ 0x25, 0xff, /* Logical Maximum (255) */ 0x05, 0x07, /* Usage Page (Key Codes) */ 0x19, 0x00, /* Usage Minimum (0) */ 0x29, 0xff, /* Usage Maximum (255) */ 0x81, 0x00, /* Input (Data, Array) */ 0xc0, /* End Collection */ }; #define USB_HID_USAGE_ERROR_ROLLOVER 0x01 #define USB_HID_USAGE_POSTFAIL 0x02 #define USB_HID_USAGE_ERROR_UNDEFINED 0x03 /* Indices are QEMU keycodes, values are from HID Usage Table. Indices * above 0x80 are for keys that come after 0xe0 or 0xe1+0x1d or 0xe1+0x9d. */ static const uint8_t usb_hid_usage_keys[0x100] = { 0x00, 0x29, 0x1e, 0x1f, 0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, 0x2d, 0x2e, 0x2a, 0x2b, 0x14, 0x1a, 0x08, 0x15, 0x17, 0x1c, 0x18, 0x0c, 0x12, 0x13, 0x2f, 0x30, 0x28, 0xe0, 0x04, 0x16, 0x07, 0x09, 0x0a, 0x0b, 0x0d, 0x0e, 0x0f, 0x33, 0x34, 0x35, 0xe1, 0x31, 0x1d, 0x1b, 0x06, 0x19, 0x05, 0x11, 0x10, 0x36, 0x37, 0x38, 0xe5, 0x55, 0xe2, 0x2c, 0x32, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f, 0x40, 0x41, 0x42, 0x43, 0x53, 0x47, 0x5f, 0x60, 0x61, 0x56, 0x5c, 0x5d, 0x5e, 0x57, 0x59, 0x5a, 0x5b, 0x62, 0x63, 0x00, 0x00, 0x00, 0x44, 0x45, 0x68, 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0xe8, 0xe9, 0x71, 0x72, 0x73, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x85, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xe3, 0xe7, 0x65, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x58, 0xe4, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x54, 0x00, 0x46, 0xe6, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x48, 0x00, 0x4a, 0x52, 0x4b, 0x00, 0x50, 0x00, 0x4f, 0x00, 0x4d, 0x51, 0x4e, 0x49, 0x4c, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xe3, 0xe7, 0x65, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, }; static void usb_hid_changed(USBHIDState *hs) { hs->changed = 1; if (hs->datain) hs->datain(hs->datain_opaque); usb_wakeup(&hs->dev); } static void usb_pointer_event_clear(USBPointerEvent *e, int buttons) { e->xdx = e->ydy = e->dz = 0; e->buttons_state = buttons; } static void usb_pointer_event_combine(USBPointerEvent *e, int xyrel, int x1, int y1, int z1) { if (xyrel) { e->xdx += x1; e->ydy += y1; } else { e->xdx = x1; e->ydy = y1; } e->dz += z1; } static void usb_pointer_event(void *opaque, int x1, int y1, int z1, int buttons_state) { USBHIDState *hs = opaque; USBMouseState *s = &hs->ptr; unsigned use_slot = (hs->head + hs->n - 1) & QUEUE_MASK; unsigned previous_slot = (use_slot - 1) & QUEUE_MASK; /* We combine events where feasible to keep the queue small. We shouldn't * combine anything with the first event of a particular button state, as * that would change the location of the button state change. When the * queue is empty, a second event is needed because we don't know if * the first event changed the button state. */ if (hs->n == QUEUE_LENGTH) { /* Queue full. Discard old button state, combine motion normally. */ s->queue[use_slot].buttons_state = buttons_state; } else if (hs->n < 2 || s->queue[use_slot].buttons_state != buttons_state || s->queue[previous_slot].buttons_state != s->queue[use_slot].buttons_state) { /* Cannot or should not combine, so add an empty item to the queue. */ QUEUE_INCR(use_slot); hs->n++; usb_pointer_event_clear(&s->queue[use_slot], buttons_state); } usb_pointer_event_combine(&s->queue[use_slot], hs->kind == USB_MOUSE, x1, y1, z1); usb_hid_changed(hs); } static void usb_keyboard_event(void *opaque, int keycode) { USBHIDState *hs = opaque; USBKeyboardState *s = &hs->kbd; int slot; if (hs->n == QUEUE_LENGTH) { fprintf(stderr, "usb-kbd: warning: key event queue full\n"); return; } slot = (hs->head + hs->n) & QUEUE_MASK; hs->n++; s->keycodes[slot] = keycode; usb_hid_changed(hs); } static void usb_keyboard_process_keycode(USBHIDState *hs) { USBKeyboardState *s = &hs->kbd; uint8_t hid_code, key; int i, keycode, slot; if (hs->n == 0) { return; } slot = hs->head & QUEUE_MASK; QUEUE_INCR(hs->head); hs->n--; keycode = s->keycodes[slot]; key = keycode & 0x7f; hid_code = usb_hid_usage_keys[key | ((s->modifiers >> 1) & (1 << 7))]; s->modifiers &= ~(1 << 8); switch (hid_code) { case 0x00: return; case 0xe0: if (s->modifiers & (1 << 9)) { s->modifiers ^= 3 << 8; usb_hid_changed(hs); return; } case 0xe1 ... 0xe7: if (keycode & (1 << 7)) { s->modifiers &= ~(1 << (hid_code & 0x0f)); usb_hid_changed(hs); return; } case 0xe8 ... 0xef: s->modifiers |= 1 << (hid_code & 0x0f); usb_hid_changed(hs); return; } if (keycode & (1 << 7)) { for (i = s->keys - 1; i >= 0; i --) if (s->key[i] == hid_code) { s->key[i] = s->key[-- s->keys]; s->key[s->keys] = 0x00; break; } if (i < 0) return; } else { for (i = s->keys - 1; i >= 0; i --) if (s->key[i] == hid_code) break; if (i < 0) { if (s->keys < sizeof(s->key)) s->key[s->keys ++] = hid_code; } else return; } } 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_pointer_poll(USBHIDState *hs, uint8_t *buf, int len) { int dx, dy, dz, b, l; int index; USBMouseState *s = &hs->ptr; USBPointerEvent *e; if (!s->mouse_grabbed) { qemu_activate_mouse_event_handler(s->eh_entry); s->mouse_grabbed = 1; } /* When the buffer is empty, return the last event. Relative movements will all be zero. */ index = (hs->n ? hs->head : hs->head - 1); e = &s->queue[index & QUEUE_MASK]; if (hs->kind == USB_MOUSE) { dx = int_clamp(e->xdx, -127, 127); dy = int_clamp(e->ydy, -127, 127); e->xdx -= dx; e->ydy -= dy; } else { dx = e->xdx; dy = e->ydy; } dz = int_clamp(e->dz, -127, 127); e->dz -= dz; b = 0; if (e->buttons_state & MOUSE_EVENT_LBUTTON) b |= 0x01; if (e->buttons_state & MOUSE_EVENT_RBUTTON) b |= 0x02; if (e->buttons_state & MOUSE_EVENT_MBUTTON) b |= 0x04; if (hs->n && !e->dz && (hs->kind == USB_TABLET || (!e->xdx && !e->ydy))) { /* that deals with this event */ QUEUE_INCR(hs->head); hs->n--; } /* Appears we have to invert the wheel direction */ dz = 0 - dz; l = 0; switch (hs->kind) { case USB_MOUSE: if (len > l) buf[l++] = b; if (len > l) buf[l++] = dx; if (len > l) buf[l++] = dy; if (len > l) buf[l++] = dz; break; case USB_TABLET: if (len > l) buf[l++] = b; if (len > l) buf[l++] = dx & 0xff; if (len > l) buf[l++] = dx >> 8; if (len > l) buf[l++] = dy & 0xff; if (len > l) buf[l++] = dy >> 8; if (len > l) buf[l++] = dz; break; default: abort(); } return l; } static int usb_keyboard_poll(USBHIDState *hs, uint8_t *buf, int len) { USBKeyboardState *s = &hs->kbd; if (len < 2) return 0; usb_keyboard_process_keycode(hs); buf[0] = s->modifiers & 0xff; buf[1] = 0; if (s->keys > 6) memset(buf + 2, USB_HID_USAGE_ERROR_ROLLOVER, MIN(8, len) - 2); else memcpy(buf + 2, s->key, MIN(8, len) - 2); return MIN(8, len); } static int usb_keyboard_write(USBKeyboardState *s, uint8_t *buf, int len) { if (len > 0) { int ledstate = 0; /* 0x01: Num Lock LED * 0x02: Caps Lock LED * 0x04: Scroll Lock LED * 0x08: Compose LED * 0x10: Kana LED */ s->leds = buf[0]; if (s->leds & 0x04) ledstate |= QEMU_SCROLL_LOCK_LED; if (s->leds & 0x01) ledstate |= QEMU_NUM_LOCK_LED; if (s->leds & 0x02) ledstate |= QEMU_CAPS_LOCK_LED; kbd_put_ledstate(ledstate); } return 0; } static void usb_mouse_handle_reset(USBDevice *dev) { USBHIDState *s = (USBHIDState *)dev; memset(s->ptr.queue, 0, sizeof (s->ptr.queue)); s->head = 0; s->n = 0; s->protocol = 1; } static void usb_keyboard_handle_reset(USBDevice *dev) { USBHIDState *s = (USBHIDState *)dev; qemu_add_kbd_event_handler(usb_keyboard_event, s); memset(s->kbd.keycodes, 0, sizeof (s->kbd.keycodes)); s->head = 0; s->n = 0; memset(s->kbd.key, 0, sizeof (s->kbd.key)); s->kbd.keys = 0; s->protocol = 1; } static void usb_hid_set_next_idle(USBHIDState *s, int64_t curtime) { s->next_idle_clock = curtime + (get_ticks_per_sec() * s->idle * 4) / 1000; } static int usb_hid_handle_control(USBDevice *dev, int request, int value, int index, int length, uint8_t *data) { USBHIDState *s = (USBHIDState *)dev; int ret; ret = usb_desc_handle_control(dev, request, value, index, length, data); if (ret >= 0) { return ret; } ret = 0; switch(request) { case DeviceRequest | USB_REQ_GET_INTERFACE: data[0] = 0; ret = 1; break; case DeviceOutRequest | USB_REQ_SET_INTERFACE: ret = 0; break; /* hid specific requests */ case InterfaceRequest | USB_REQ_GET_DESCRIPTOR: switch(value >> 8) { case 0x22: if (s->kind == USB_MOUSE) { memcpy(data, qemu_mouse_hid_report_descriptor, sizeof(qemu_mouse_hid_report_descriptor)); ret = sizeof(qemu_mouse_hid_report_descriptor); } else if (s->kind == USB_TABLET) { memcpy(data, qemu_tablet_hid_report_descriptor, sizeof(qemu_tablet_hid_report_descriptor)); ret = sizeof(qemu_tablet_hid_report_descriptor); } else if (s->kind == USB_KEYBOARD) { memcpy(data, qemu_keyboard_hid_report_descriptor, sizeof(qemu_keyboard_hid_report_descriptor)); ret = sizeof(qemu_keyboard_hid_report_descriptor); } break; default: goto fail; } break; case GET_REPORT: if (s->kind == USB_MOUSE || s->kind == USB_TABLET) ret = usb_pointer_poll(s, data, length); else if (s->kind == USB_KEYBOARD) ret = usb_keyboard_poll(s, data, length); break; case SET_REPORT: if (s->kind == USB_KEYBOARD) ret = usb_keyboard_write(&s->kbd, data, length); else goto fail; break; case GET_PROTOCOL: if (s->kind != USB_KEYBOARD) goto fail; ret = 1; data[0] = s->protocol; break; case SET_PROTOCOL: if (s->kind != USB_KEYBOARD) goto fail; ret = 0; s->protocol = value; break; case GET_IDLE: ret = 1; data[0] = s->idle; break; case SET_IDLE: s->idle = (uint8_t) (value >> 8); usb_hid_set_next_idle(s, qemu_get_clock_ns(vm_clock)); ret = 0; break; default: fail: ret = USB_RET_STALL; break; } return ret; } static int usb_hid_handle_data(USBDevice *dev, USBPacket *p) { USBHIDState *s = (USBHIDState *)dev; int ret = 0; switch(p->pid) { case USB_TOKEN_IN: if (p->devep == 1) { int64_t curtime = qemu_get_clock_ns(vm_clock); if (!s->changed && (!s->idle || s->next_idle_clock - curtime > 0)) return USB_RET_NAK; usb_hid_set_next_idle(s, curtime); if (s->kind == USB_MOUSE || s->kind == USB_TABLET) { ret = usb_pointer_poll(s, p->data, p->len); } else if (s->kind == USB_KEYBOARD) { ret = usb_keyboard_poll(s, p->data, p->len); } s->changed = s->n > 0; } else { goto fail; } break; case USB_TOKEN_OUT: default: fail: ret = USB_RET_STALL; break; } return ret; } static void usb_hid_handle_destroy(USBDevice *dev) { USBHIDState *s = (USBHIDState *)dev; switch(s->kind) { case USB_KEYBOARD: qemu_remove_kbd_event_handler(); break; default: qemu_remove_mouse_event_handler(s->ptr.eh_entry); } } static int usb_hid_initfn(USBDevice *dev, int kind) { USBHIDState *s = DO_UPCAST(USBHIDState, dev, dev); usb_desc_init(dev); s->kind = kind; if (s->kind == USB_MOUSE) { s->ptr.eh_entry = qemu_add_mouse_event_handler(usb_pointer_event, s, 0, "QEMU USB Mouse"); } else if (s->kind == USB_TABLET) { s->ptr.eh_entry = qemu_add_mouse_event_handler(usb_pointer_event, s, 1, "QEMU USB Tablet"); } /* Force poll routine to be run and grab input the first time. */ s->changed = 1; return 0; } static int usb_tablet_initfn(USBDevice *dev) { return usb_hid_initfn(dev, USB_TABLET); } static int usb_mouse_initfn(USBDevice *dev) { return usb_hid_initfn(dev, USB_MOUSE); } static int usb_keyboard_initfn(USBDevice *dev) { return usb_hid_initfn(dev, USB_KEYBOARD); } void usb_hid_datain_cb(USBDevice *dev, void *opaque, void (*datain)(void *)) { USBHIDState *s = (USBHIDState *)dev; s->datain_opaque = opaque; s->datain = datain; } static int usb_hid_post_load(void *opaque, int version_id) { USBHIDState *s = opaque; if (s->idle) { usb_hid_set_next_idle(s, qemu_get_clock_ns(vm_clock)); } return 0; } static const VMStateDescription vmstate_usb_ptr_queue = { .name = "usb-ptr-queue", .version_id = 1, .minimum_version_id = 1, .fields = (VMStateField []) { VMSTATE_INT32(xdx, USBPointerEvent), VMSTATE_INT32(ydy, USBPointerEvent), VMSTATE_INT32(dz, USBPointerEvent), VMSTATE_INT32(buttons_state, USBPointerEvent), VMSTATE_END_OF_LIST() } }; static const VMStateDescription vmstate_usb_ptr = { .name = "usb-ptr", .version_id = 1, .minimum_version_id = 1, .post_load = usb_hid_post_load, .fields = (VMStateField []) { VMSTATE_USB_DEVICE(dev, USBHIDState), VMSTATE_STRUCT_ARRAY(ptr.queue, USBHIDState, QUEUE_LENGTH, 0, vmstate_usb_ptr_queue, USBPointerEvent), VMSTATE_UINT32(head, USBHIDState), VMSTATE_UINT32(n, USBHIDState), VMSTATE_INT32(protocol, USBHIDState), VMSTATE_UINT8(idle, USBHIDState), VMSTATE_END_OF_LIST() } }; static const VMStateDescription vmstate_usb_kbd = { .name = "usb-kbd", .version_id = 1, .minimum_version_id = 1, .post_load = usb_hid_post_load, .fields = (VMStateField []) { VMSTATE_USB_DEVICE(dev, USBHIDState), VMSTATE_UINT32_ARRAY(kbd.keycodes, USBHIDState, QUEUE_LENGTH), VMSTATE_UINT32(head, USBHIDState), VMSTATE_UINT32(n, USBHIDState), VMSTATE_UINT16(kbd.modifiers, USBHIDState), VMSTATE_UINT8(kbd.leds, USBHIDState), VMSTATE_UINT8_ARRAY(kbd.key, USBHIDState, 16), VMSTATE_INT32(kbd.keys, USBHIDState), VMSTATE_INT32(protocol, USBHIDState), VMSTATE_UINT8(idle, USBHIDState), VMSTATE_END_OF_LIST() } }; static struct USBDeviceInfo hid_info[] = { { .product_desc = "QEMU USB Tablet", .qdev.name = "usb-tablet", .usbdevice_name = "tablet", .qdev.size = sizeof(USBHIDState), .qdev.vmsd = &vmstate_usb_ptr, .usb_desc = &desc_tablet, .init = usb_tablet_initfn, .handle_packet = usb_generic_handle_packet, .handle_reset = usb_mouse_handle_reset, .handle_control = usb_hid_handle_control, .handle_data = usb_hid_handle_data, .handle_destroy = usb_hid_handle_destroy, },{ .product_desc = "QEMU USB Mouse", .qdev.name = "usb-mouse", .usbdevice_name = "mouse", .qdev.size = sizeof(USBHIDState), .qdev.vmsd = &vmstate_usb_ptr, .usb_desc = &desc_mouse, .init = usb_mouse_initfn, .handle_packet = usb_generic_handle_packet, .handle_reset = usb_mouse_handle_reset, .handle_control = usb_hid_handle_control, .handle_data = usb_hid_handle_data, .handle_destroy = usb_hid_handle_destroy, },{ .product_desc = "QEMU USB Keyboard", .qdev.name = "usb-kbd", .usbdevice_name = "keyboard", .qdev.size = sizeof(USBHIDState), .qdev.vmsd = &vmstate_usb_kbd, .usb_desc = &desc_keyboard, .init = usb_keyboard_initfn, .handle_packet = usb_generic_handle_packet, .handle_reset = usb_keyboard_handle_reset, .handle_control = usb_hid_handle_control, .handle_data = usb_hid_handle_data, .handle_destroy = usb_hid_handle_destroy, },{ /* end of list */ } }; static void usb_hid_register_devices(void) { usb_qdev_register_many(hid_info); } device_init(usb_hid_register_devices)