| /* |
| * 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, |
| .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, USBPacket *p, |
| int request, int value, int index, int length, uint8_t *data) |
| { |
| USBHIDState *s = (USBHIDState *)dev; |
| int ret; |
| |
| ret = usb_desc_handle_control(dev, p, 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 && s->kind != USB_MOUSE) |
| goto fail; |
| ret = 1; |
| data[0] = s->protocol; |
| break; |
| case SET_PROTOCOL: |
| if (s->kind != USB_KEYBOARD && s->kind != USB_MOUSE) |
| 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) |
