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https://github.com/xemu-project/xemu.git
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usb-hid: add event callback
Add callback for event notification, which allows to un-usbify more functions. Also split separate hid_* functions for reset and release. Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
This commit is contained in:
Gerd Hoffmann
parent
0d878eec1e
commit
8bde680541
116
hw/usb-hid.c
116
hw/usb-hid.c
@ -54,6 +54,9 @@ typedef struct HIDPointerEvent {
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#define QUEUE_MASK (QUEUE_LENGTH-1u)
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#define QUEUE_INCR(v) ((v)++, (v) &= QUEUE_MASK)
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typedef struct HIDState HIDState;
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typedef void (*HIDEventFunc)(HIDState *s);
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typedef struct HIDMouseState {
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HIDPointerEvent queue[QUEUE_LENGTH];
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int mouse_grabbed;
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@ -68,7 +71,7 @@ typedef struct HIDKeyboardState {
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int32_t keys;
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} HIDKeyboardState;
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typedef struct HIDState {
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struct HIDState {
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union {
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HIDMouseState ptr;
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HIDKeyboardState kbd;
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@ -76,7 +79,8 @@ typedef struct HIDState {
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uint32_t head; /* index into circular queue */
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uint32_t n;
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int kind;
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} HIDState;
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HIDEventFunc event;
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};
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typedef struct USBHIDState {
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USBDevice dev;
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@ -440,14 +444,17 @@ static const uint8_t usb_hid_usage_keys[0x100] = {
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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};
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static void usb_hid_changed(USBHIDState *hs)
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static void usb_hid_changed(HIDState *hs)
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{
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hs->changed = 1;
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USBHIDState *us = container_of(hs, USBHIDState, hid);
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if (hs->datain)
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hs->datain(hs->datain_opaque);
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us->changed = 1;
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usb_wakeup(&hs->dev);
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if (us->datain) {
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us->datain(us->datain_opaque);
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}
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usb_wakeup(&us->dev);
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}
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static void hid_pointer_event_clear(HIDPointerEvent *e, int buttons)
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@ -473,11 +480,10 @@ static void hid_pointer_event_combine(HIDPointerEvent *e, int xyrel,
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e->dz += z1;
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}
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static void usb_pointer_event(void *opaque,
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static void hid_pointer_event(void *opaque,
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int x1, int y1, int z1, int buttons_state)
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{
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USBHIDState *us = opaque;
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HIDState *hs = &us->hid;
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HIDState *hs = opaque;
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unsigned use_slot = (hs->head + hs->n - 1) & QUEUE_MASK;
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unsigned previous_slot = (use_slot - 1) & QUEUE_MASK;
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@ -501,13 +507,12 @@ static void usb_pointer_event(void *opaque,
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hid_pointer_event_combine(&hs->ptr.queue[use_slot],
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hs->kind == HID_MOUSE,
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x1, y1, z1);
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usb_hid_changed(us);
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hs->event(hs);
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}
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static void usb_keyboard_event(void *opaque, int keycode)
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static void hid_keyboard_event(void *opaque, int keycode)
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{
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USBHIDState *us = opaque;
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HIDState *hs = &us->hid;
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HIDState *hs = opaque;
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int slot;
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if (hs->n == QUEUE_LENGTH) {
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@ -516,7 +521,7 @@ static void usb_keyboard_event(void *opaque, int keycode)
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}
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slot = (hs->head + hs->n) & QUEUE_MASK; hs->n++;
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hs->kbd.keycodes[slot] = keycode;
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usb_hid_changed(us);
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hs->event(hs);
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}
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static void hid_keyboard_process_keycode(HIDState *hs)
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@ -713,26 +718,29 @@ static int hid_keyboard_write(HIDState *hs, uint8_t *buf, int len)
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return 0;
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}
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static void usb_mouse_handle_reset(USBDevice *dev)
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static void hid_handle_reset(HIDState *hs)
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{
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USBHIDState *us = DO_UPCAST(USBHIDState, dev, dev);
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memset(us->hid.ptr.queue, 0, sizeof(us->hid.ptr.queue));
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us->hid.head = 0;
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us->hid.n = 0;
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us->protocol = 1;
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switch (hs->kind) {
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case HID_KEYBOARD:
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qemu_add_kbd_event_handler(hid_keyboard_event, hs);
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memset(hs->kbd.keycodes, 0, sizeof(hs->kbd.keycodes));
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memset(hs->kbd.key, 0, sizeof(hs->kbd.key));
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hs->kbd.keys = 0;
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break;
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case HID_MOUSE:
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case HID_TABLET:
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memset(hs->ptr.queue, 0, sizeof(hs->ptr.queue));
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break;
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}
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hs->head = 0;
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hs->n = 0;
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}
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static void usb_keyboard_handle_reset(USBDevice *dev)
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static void usb_hid_handle_reset(USBDevice *dev)
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{
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USBHIDState *us = DO_UPCAST(USBHIDState, dev, dev);
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qemu_add_kbd_event_handler(usb_keyboard_event, us);
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memset(us->hid.kbd.keycodes, 0, sizeof(us->hid.kbd.keycodes));
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us->hid.head = 0;
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us->hid.n = 0;
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memset(us->hid.kbd.key, 0, sizeof(us->hid.kbd.key));
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us->hid.kbd.keys = 0;
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hid_handle_reset(&us->hid);
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us->protocol = 1;
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}
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@ -866,34 +874,46 @@ static int usb_hid_handle_data(USBDevice *dev, USBPacket *p)
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return ret;
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}
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static void hid_free(HIDState *hs)
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{
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switch (hs->kind) {
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case HID_KEYBOARD:
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qemu_remove_kbd_event_handler();
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break;
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case HID_MOUSE:
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case HID_TABLET:
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qemu_remove_mouse_event_handler(hs->ptr.eh_entry);
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break;
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}
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}
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static void usb_hid_handle_destroy(USBDevice *dev)
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{
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USBHIDState *us = DO_UPCAST(USBHIDState, dev, dev);
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switch (us->hid.kind) {
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case HID_KEYBOARD:
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qemu_remove_kbd_event_handler();
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break;
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default:
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qemu_remove_mouse_event_handler(us->hid.ptr.eh_entry);
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hid_free(&us->hid);
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}
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static void hid_init(HIDState *hs, int kind, HIDEventFunc event)
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{
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hs->kind = kind;
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hs->event = event;
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if (hs->kind == HID_MOUSE) {
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hs->ptr.eh_entry = qemu_add_mouse_event_handler(hid_pointer_event, hs,
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0, "QEMU HID Mouse");
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} else if (hs->kind == HID_TABLET) {
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hs->ptr.eh_entry = qemu_add_mouse_event_handler(hid_pointer_event, hs,
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1, "QEMU HID Tablet");
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}
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}
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static int usb_hid_initfn(USBDevice *dev, int kind)
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{
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USBHIDState *us = DO_UPCAST(USBHIDState, dev, dev);
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HIDState *hs = &us->hid;
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usb_desc_init(dev);
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hs->kind = kind;
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if (hs->kind == HID_MOUSE) {
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hs->ptr.eh_entry = qemu_add_mouse_event_handler(usb_pointer_event, us,
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0, "QEMU HID Mouse");
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} else if (hs->kind == HID_TABLET) {
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hs->ptr.eh_entry = qemu_add_mouse_event_handler(usb_pointer_event, us,
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1, "QEMU HID Tablet");
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}
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hid_init(&us->hid, kind, usb_hid_changed);
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/* Force poll routine to be run and grab input the first time. */
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us->changed = 1;
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@ -992,7 +1012,7 @@ static struct USBDeviceInfo hid_info[] = {
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.usb_desc = &desc_tablet,
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.init = usb_tablet_initfn,
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.handle_packet = usb_generic_handle_packet,
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.handle_reset = usb_mouse_handle_reset,
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.handle_reset = usb_hid_handle_reset,
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.handle_control = usb_hid_handle_control,
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.handle_data = usb_hid_handle_data,
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.handle_destroy = usb_hid_handle_destroy,
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@ -1005,7 +1025,7 @@ static struct USBDeviceInfo hid_info[] = {
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.usb_desc = &desc_mouse,
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.init = usb_mouse_initfn,
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.handle_packet = usb_generic_handle_packet,
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.handle_reset = usb_mouse_handle_reset,
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.handle_reset = usb_hid_handle_reset,
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.handle_control = usb_hid_handle_control,
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.handle_data = usb_hid_handle_data,
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.handle_destroy = usb_hid_handle_destroy,
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@ -1018,7 +1038,7 @@ static struct USBDeviceInfo hid_info[] = {
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.usb_desc = &desc_keyboard,
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.init = usb_keyboard_initfn,
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.handle_packet = usb_generic_handle_packet,
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.handle_reset = usb_keyboard_handle_reset,
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.handle_reset = usb_hid_handle_reset,
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.handle_control = usb_hid_handle_control,
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.handle_data = usb_hid_handle_data,
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.handle_destroy = usb_hid_handle_destroy,
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