mirror of https://gitee.com/openkylin/qemu.git
msmouse: fix misc issues, switch to new input interface.
input: add trace events for full queues.
input-linux: better capability checks and event handling.
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Merge remote-tracking branch 'remotes/kraxel/tags/pull-input-20160712-1' into staging
msmouse: fix misc issues, switch to new input interface.
input: add trace events for full queues.
input-linux: better capability checks and event handling.
# gpg: Signature made Tue 12 Jul 2016 09:20:36 BST
# gpg: using RSA key 0x4CB6D8EED3E87138
# gpg: Good signature from "Gerd Hoffmann (work) <kraxel@redhat.com>"
# gpg: aka "Gerd Hoffmann <gerd@kraxel.org>"
# gpg: aka "Gerd Hoffmann (private) <kraxel@gmail.com>"
# Primary key fingerprint: A032 8CFF B93A 17A7 9901 FE7D 4CB6 D8EE D3E8 7138
* remotes/kraxel/tags/pull-input-20160712-1:
input-linux: better capability checks, merge input_linux_event_{mouse, keyboard}
input-linux: factor out input_linux_handle_keyboard
input-linux: factor out input_linux_handle_mouse
input: add trace events for full queues
msmouse: send short messages if possible.
msmouse: switch to new input interface
msmouse: fix buffer handling
msmouse: add MouseState, unregister handler on close
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Peter Maydell
commit
494edbf0b4
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@ -25,16 +25,51 @@
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#include "qemu-common.h"
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#include "sysemu/char.h"
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#include "ui/console.h"
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#include "ui/input.h"
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#define MSMOUSE_LO6(n) ((n) & 0x3f)
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#define MSMOUSE_HI2(n) (((n) & 0xc0) >> 6)
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static void msmouse_event(void *opaque,
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int dx, int dy, int dz, int buttons_state)
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{
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CharDriverState *chr = (CharDriverState *)opaque;
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typedef struct {
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CharDriverState *chr;
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QemuInputHandlerState *hs;
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int axis[INPUT_AXIS__MAX];
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bool btns[INPUT_BUTTON__MAX];
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bool btnc[INPUT_BUTTON__MAX];
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uint8_t outbuf[32];
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int outlen;
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} MouseState;
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static void msmouse_chr_accept_input(CharDriverState *chr)
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{
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MouseState *mouse = chr->opaque;
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int len;
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len = qemu_chr_be_can_write(chr);
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if (len > mouse->outlen) {
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len = mouse->outlen;
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}
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if (!len) {
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return;
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}
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qemu_chr_be_write(chr, mouse->outbuf, len);
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mouse->outlen -= len;
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if (mouse->outlen) {
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memmove(mouse->outbuf, mouse->outbuf + len, mouse->outlen);
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}
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}
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static void msmouse_queue_event(MouseState *mouse)
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{
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unsigned char bytes[4] = { 0x40, 0x00, 0x00, 0x00 };
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int dx, dy, count = 3;
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dx = mouse->axis[INPUT_AXIS_X];
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mouse->axis[INPUT_AXIS_X] = 0;
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dy = mouse->axis[INPUT_AXIS_Y];
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mouse->axis[INPUT_AXIS_Y] = 0;
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/* Movement deltas */
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bytes[0] |= (MSMOUSE_HI2(dy) << 2) | MSMOUSE_HI2(dx);
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@ -42,14 +77,54 @@ static void msmouse_event(void *opaque,
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bytes[2] |= MSMOUSE_LO6(dy);
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/* Buttons */
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bytes[0] |= (buttons_state & 0x01 ? 0x20 : 0x00);
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bytes[0] |= (buttons_state & 0x02 ? 0x10 : 0x00);
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bytes[3] |= (buttons_state & 0x04 ? 0x20 : 0x00);
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bytes[0] |= (mouse->btns[INPUT_BUTTON_LEFT] ? 0x20 : 0x00);
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bytes[0] |= (mouse->btns[INPUT_BUTTON_RIGHT] ? 0x10 : 0x00);
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if (mouse->btns[INPUT_BUTTON_MIDDLE] ||
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mouse->btnc[INPUT_BUTTON_MIDDLE]) {
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bytes[3] |= (mouse->btns[INPUT_BUTTON_MIDDLE] ? 0x20 : 0x00);
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mouse->btnc[INPUT_BUTTON_MIDDLE] = false;
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count = 4;
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}
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/* We always send the packet of, so that we do not have to keep track
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of previous state of the middle button. This can potentially confuse
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some very old drivers for two button mice though. */
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qemu_chr_be_write(chr, bytes, 4);
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if (mouse->outlen <= sizeof(mouse->outbuf) - count) {
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memcpy(mouse->outbuf + mouse->outlen, bytes, count);
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mouse->outlen += count;
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} else {
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/* queue full -> drop event */
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}
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}
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static void msmouse_input_event(DeviceState *dev, QemuConsole *src,
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InputEvent *evt)
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{
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MouseState *mouse = (MouseState *)dev;
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InputMoveEvent *move;
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InputBtnEvent *btn;
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switch (evt->type) {
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case INPUT_EVENT_KIND_REL:
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move = evt->u.rel.data;
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mouse->axis[move->axis] += move->value;
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break;
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case INPUT_EVENT_KIND_BTN:
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btn = evt->u.btn.data;
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mouse->btns[btn->button] = btn->down;
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mouse->btnc[btn->button] = true;
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break;
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default:
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/* keep gcc happy */
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break;
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}
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}
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static void msmouse_input_sync(DeviceState *dev)
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{
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MouseState *mouse = (MouseState *)dev;
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msmouse_queue_event(mouse);
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msmouse_chr_accept_input(mouse->chr);
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}
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static int msmouse_chr_write (struct CharDriverState *s, const uint8_t *buf, int len)
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@ -60,26 +135,41 @@ static int msmouse_chr_write (struct CharDriverState *s, const uint8_t *buf, int
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static void msmouse_chr_close (struct CharDriverState *chr)
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{
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g_free (chr);
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MouseState *mouse = chr->opaque;
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qemu_input_handler_unregister(mouse->hs);
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g_free(mouse);
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g_free(chr);
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}
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static QemuInputHandler msmouse_handler = {
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.name = "QEMU Microsoft Mouse",
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.mask = INPUT_EVENT_MASK_BTN | INPUT_EVENT_MASK_REL,
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.event = msmouse_input_event,
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.sync = msmouse_input_sync,
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};
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static CharDriverState *qemu_chr_open_msmouse(const char *id,
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ChardevBackend *backend,
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ChardevReturn *ret,
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Error **errp)
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{
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ChardevCommon *common = backend->u.msmouse.data;
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MouseState *mouse;
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CharDriverState *chr;
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chr = qemu_chr_alloc(common, errp);
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if (!chr) {
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return NULL;
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}
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chr->chr_write = msmouse_chr_write;
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chr->chr_close = msmouse_chr_close;
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chr->chr_accept_input = msmouse_chr_accept_input;
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chr->explicit_be_open = true;
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qemu_add_mouse_event_handler(msmouse_event, chr, 0, "QEMU Microsoft Mouse");
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mouse = g_new0(MouseState, 1);
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mouse->hs = qemu_input_handler_register((DeviceState *)mouse,
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&msmouse_handler);
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mouse->chr = chr;
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chr->opaque = mouse;
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return chr;
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}
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@ -27,6 +27,7 @@
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#include "ui/console.h"
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#include "qemu/timer.h"
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#include "hw/input/hid.h"
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#include "trace.h"
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#define HID_USAGE_ERROR_ROLLOVER 0x01
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#define HID_USAGE_POSTFAIL 0x02
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@ -234,7 +235,7 @@ static void hid_keyboard_event(DeviceState *dev, QemuConsole *src,
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key->down,
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scancodes);
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if (hs->n + count > QUEUE_LENGTH) {
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fprintf(stderr, "usb-kbd: warning: key event queue full\n");
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trace_hid_kbd_queue_full();
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return;
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}
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for (i = 0; i < count; i++) {
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@ -23,3 +23,9 @@ milkymist_softusb_memory_write(uint32_t addr, uint32_t value) "addr %08x value %
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milkymist_softusb_mevt(uint8_t m) "m %d"
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milkymist_softusb_kevt(uint8_t m) "m %d"
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milkymist_softusb_pulse_irq(void) "Pulse IRQ"
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# hw/input/hid.c
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hid_kbd_queue_full(void) "queue full"
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# hw/input/virtio
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virtio_input_queue_full(void) "queue full"
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@ -7,6 +7,7 @@
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#include "qemu/osdep.h"
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#include "qapi/error.h"
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#include "qemu/iov.h"
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#include "trace.h"
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#include "hw/qdev.h"
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#include "hw/virtio/virtio.h"
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@ -47,7 +48,7 @@ void virtio_input_send(VirtIOInput *vinput, virtio_input_event *event)
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virtqueue_get_avail_bytes(vinput->evt, &have, NULL, need, 0);
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if (have < need) {
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vinput->qindex = 0;
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fprintf(stderr, "%s: ENOSPC in vq, dropping events\n", __func__);
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trace_virtio_input_queue_full();
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return;
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}
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269
ui/input-linux.c
269
ui/input-linux.c
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@ -129,6 +129,17 @@ static int qemu_input_linux_to_qcode(unsigned int lnx)
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return linux_to_qcode[lnx];
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}
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static bool linux_is_button(unsigned int lnx)
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{
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if (lnx < 0x100) {
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return false;
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}
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if (lnx >= 0x160 && lnx < 0x2c0) {
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return false;
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}
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return true;
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}
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#define TYPE_INPUT_LINUX "input-linux"
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#define INPUT_LINUX(obj) \
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OBJECT_CHECK(InputLinux, (obj), TYPE_INPUT_LINUX)
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@ -153,6 +164,12 @@ struct InputLinux {
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int keycount;
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int wheel;
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bool initialized;
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bool has_rel_x;
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bool has_abs_x;
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int num_keys;
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int num_btns;
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QTAILQ_ENTRY(InputLinux) next;
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};
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@ -188,71 +205,55 @@ static void input_linux_toggle_grab(InputLinux *il)
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}
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}
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static void input_linux_event_keyboard(void *opaque)
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static void input_linux_handle_keyboard(InputLinux *il,
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struct input_event *event)
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{
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InputLinux *il = opaque;
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struct input_event event;
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int rc;
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for (;;) {
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rc = read(il->fd, &event, sizeof(event));
|
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if (rc != sizeof(event)) {
|
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if (rc < 0 && errno != EAGAIN) {
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fprintf(stderr, "%s: read: %s\n", __func__, strerror(errno));
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qemu_set_fd_handler(il->fd, NULL, NULL, NULL);
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close(il->fd);
|
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}
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break;
|
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if (event->type == EV_KEY) {
|
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if (event->value > 2 || (event->value > 1 && !il->repeat)) {
|
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/*
|
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* ignore autorepeat + unknown key events
|
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* 0 == up, 1 == down, 2 == autorepeat, other == undefined
|
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*/
|
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return;
|
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}
|
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if (event->code >= KEY_CNT) {
|
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/*
|
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* Should not happen. But better safe than sorry,
|
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* and we make Coverity happy too.
|
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*/
|
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return;
|
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}
|
||||
|
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switch (event.type) {
|
||||
case EV_KEY:
|
||||
if (event.value > 2 || (event.value > 1 && !il->repeat)) {
|
||||
/*
|
||||
* ignore autorepeat + unknown key events
|
||||
* 0 == up, 1 == down, 2 == autorepeat, other == undefined
|
||||
*/
|
||||
continue;
|
||||
}
|
||||
if (event.code >= KEY_CNT) {
|
||||
/*
|
||||
* Should not happen. But better safe than sorry,
|
||||
* and we make Coverity happy too.
|
||||
*/
|
||||
continue;
|
||||
}
|
||||
/* keep track of key state */
|
||||
if (!il->keydown[event.code] && event.value) {
|
||||
il->keydown[event.code] = true;
|
||||
il->keycount++;
|
||||
}
|
||||
if (il->keydown[event.code] && !event.value) {
|
||||
il->keydown[event.code] = false;
|
||||
il->keycount--;
|
||||
}
|
||||
/* keep track of key state */
|
||||
if (!il->keydown[event->code] && event->value) {
|
||||
il->keydown[event->code] = true;
|
||||
il->keycount++;
|
||||
}
|
||||
if (il->keydown[event->code] && !event->value) {
|
||||
il->keydown[event->code] = false;
|
||||
il->keycount--;
|
||||
}
|
||||
|
||||
/* send event to guest when grab is active */
|
||||
if (il->grab_active) {
|
||||
int qcode = qemu_input_linux_to_qcode(event.code);
|
||||
qemu_input_event_send_key_qcode(NULL, qcode, event.value);
|
||||
}
|
||||
/* send event to guest when grab is active */
|
||||
if (il->grab_active) {
|
||||
int qcode = qemu_input_linux_to_qcode(event->code);
|
||||
qemu_input_event_send_key_qcode(NULL, qcode, event->value);
|
||||
}
|
||||
|
||||
/* hotkey -> record switch request ... */
|
||||
if (il->keydown[KEY_LEFTCTRL] &&
|
||||
il->keydown[KEY_RIGHTCTRL]) {
|
||||
il->grab_request = true;
|
||||
}
|
||||
/* hotkey -> record switch request ... */
|
||||
if (il->keydown[KEY_LEFTCTRL] &&
|
||||
il->keydown[KEY_RIGHTCTRL]) {
|
||||
il->grab_request = true;
|
||||
}
|
||||
|
||||
/*
|
||||
* ... and do the switch when all keys are lifted, so we
|
||||
* confuse neither guest nor host with keys which seem to
|
||||
* be stuck due to missing key-up events.
|
||||
*/
|
||||
if (il->grab_request && !il->keycount) {
|
||||
il->grab_request = false;
|
||||
input_linux_toggle_grab(il);
|
||||
}
|
||||
break;
|
||||
/*
|
||||
* ... and do the switch when all keys are lifted, so we
|
||||
* confuse neither guest nor host with keys which seem to
|
||||
* be stuck due to missing key-up events.
|
||||
*/
|
||||
if (il->grab_request && !il->keycount) {
|
||||
il->grab_request = false;
|
||||
input_linux_toggle_grab(il);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
|
@ -265,7 +266,59 @@ static void input_linux_event_mouse_button(int button)
|
|||
qemu_input_event_sync();
|
||||
}
|
||||
|
||||
static void input_linux_event_mouse(void *opaque)
|
||||
static void input_linux_handle_mouse(InputLinux *il, struct input_event *event)
|
||||
{
|
||||
if (!il->grab_active) {
|
||||
return;
|
||||
}
|
||||
|
||||
switch (event->type) {
|
||||
case EV_KEY:
|
||||
switch (event->code) {
|
||||
case BTN_LEFT:
|
||||
qemu_input_queue_btn(NULL, INPUT_BUTTON_LEFT, event->value);
|
||||
break;
|
||||
case BTN_RIGHT:
|
||||
qemu_input_queue_btn(NULL, INPUT_BUTTON_RIGHT, event->value);
|
||||
break;
|
||||
case BTN_MIDDLE:
|
||||
qemu_input_queue_btn(NULL, INPUT_BUTTON_MIDDLE, event->value);
|
||||
break;
|
||||
case BTN_GEAR_UP:
|
||||
qemu_input_queue_btn(NULL, INPUT_BUTTON_WHEEL_UP, event->value);
|
||||
break;
|
||||
case BTN_GEAR_DOWN:
|
||||
qemu_input_queue_btn(NULL, INPUT_BUTTON_WHEEL_DOWN,
|
||||
event->value);
|
||||
break;
|
||||
};
|
||||
break;
|
||||
case EV_REL:
|
||||
switch (event->code) {
|
||||
case REL_X:
|
||||
qemu_input_queue_rel(NULL, INPUT_AXIS_X, event->value);
|
||||
break;
|
||||
case REL_Y:
|
||||
qemu_input_queue_rel(NULL, INPUT_AXIS_Y, event->value);
|
||||
break;
|
||||
case REL_WHEEL:
|
||||
il->wheel = event->value;
|
||||
break;
|
||||
}
|
||||
break;
|
||||
case EV_SYN:
|
||||
qemu_input_event_sync();
|
||||
if (il->wheel != 0) {
|
||||
input_linux_event_mouse_button((il->wheel > 0)
|
||||
? INPUT_BUTTON_WHEEL_UP
|
||||
: INPUT_BUTTON_WHEEL_DOWN);
|
||||
il->wheel = 0;
|
||||
}
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
static void input_linux_event(void *opaque)
|
||||
{
|
||||
InputLinux *il = opaque;
|
||||
struct input_event event;
|
||||
|
|
@ -282,54 +335,11 @@ static void input_linux_event_mouse(void *opaque)
|
|||
break;
|
||||
}
|
||||
|
||||
/* only send event to guest when grab is active */
|
||||
if (!il->grab_active) {
|
||||
continue;
|
||||
if (il->num_keys) {
|
||||
input_linux_handle_keyboard(il, &event);
|
||||
}
|
||||
|
||||
switch (event.type) {
|
||||
case EV_KEY:
|
||||
switch (event.code) {
|
||||
case BTN_LEFT:
|
||||
qemu_input_queue_btn(NULL, INPUT_BUTTON_LEFT, event.value);
|
||||
break;
|
||||
case BTN_RIGHT:
|
||||
qemu_input_queue_btn(NULL, INPUT_BUTTON_RIGHT, event.value);
|
||||
break;
|
||||
case BTN_MIDDLE:
|
||||
qemu_input_queue_btn(NULL, INPUT_BUTTON_MIDDLE, event.value);
|
||||
break;
|
||||
case BTN_GEAR_UP:
|
||||
qemu_input_queue_btn(NULL, INPUT_BUTTON_WHEEL_UP, event.value);
|
||||
break;
|
||||
case BTN_GEAR_DOWN:
|
||||
qemu_input_queue_btn(NULL, INPUT_BUTTON_WHEEL_DOWN,
|
||||
event.value);
|
||||
break;
|
||||
};
|
||||
break;
|
||||
case EV_REL:
|
||||
switch (event.code) {
|
||||
case REL_X:
|
||||
qemu_input_queue_rel(NULL, INPUT_AXIS_X, event.value);
|
||||
break;
|
||||
case REL_Y:
|
||||
qemu_input_queue_rel(NULL, INPUT_AXIS_Y, event.value);
|
||||
break;
|
||||
case REL_WHEEL:
|
||||
il->wheel = event.value;
|
||||
break;
|
||||
}
|
||||
break;
|
||||
case EV_SYN:
|
||||
qemu_input_event_sync();
|
||||
if (il->wheel != 0) {
|
||||
input_linux_event_mouse_button((il->wheel > 0)
|
||||
? INPUT_BUTTON_WHEEL_UP
|
||||
: INPUT_BUTTON_WHEEL_DOWN);
|
||||
il->wheel = 0;
|
||||
}
|
||||
break;
|
||||
if (il->has_rel_x && il->num_btns) {
|
||||
input_linux_handle_mouse(il, &event);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
|
@ -337,7 +347,8 @@ static void input_linux_event_mouse(void *opaque)
|
|||
static void input_linux_complete(UserCreatable *uc, Error **errp)
|
||||
{
|
||||
InputLinux *il = INPUT_LINUX(uc);
|
||||
uint32_t evtmap, relmap, absmap;
|
||||
uint8_t evtmap, relmap, absmap, keymap[KEY_CNT / 8];
|
||||
unsigned int i;
|
||||
int rc, ver;
|
||||
|
||||
if (!il->evdev) {
|
||||
|
|
@ -365,36 +376,36 @@ static void input_linux_complete(UserCreatable *uc, Error **errp)
|
|||
}
|
||||
|
||||
if (evtmap & (1 << EV_REL)) {
|
||||
relmap = 0;
|
||||
rc = ioctl(il->fd, EVIOCGBIT(EV_REL, sizeof(relmap)), &relmap);
|
||||
if (rc < 0) {
|
||||
relmap = 0;
|
||||
if (relmap & (1 << REL_X)) {
|
||||
il->has_rel_x = true;
|
||||
}
|
||||
}
|
||||
|
||||
if (evtmap & (1 << EV_ABS)) {
|
||||
ioctl(il->fd, EVIOCGBIT(EV_ABS, sizeof(absmap)), &absmap);
|
||||
if (rc < 0) {
|
||||
absmap = 0;
|
||||
absmap = 0;
|
||||
rc = ioctl(il->fd, EVIOCGBIT(EV_ABS, sizeof(absmap)), &absmap);
|
||||
if (absmap & (1 << ABS_X)) {
|
||||
il->has_abs_x = true;
|
||||
}
|
||||
}
|
||||
|
||||
if ((evtmap & (1 << EV_REL)) &&
|
||||
(relmap & (1 << REL_X))) {
|
||||
/* has relative x axis -> assume mouse */
|
||||
qemu_set_fd_handler(il->fd, input_linux_event_mouse, NULL, il);
|
||||
} else if ((evtmap & (1 << EV_ABS)) &&
|
||||
(absmap & (1 << ABS_X))) {
|
||||
/* has absolute x axis -> not supported */
|
||||
error_setg(errp, "tablet/touchscreen not supported");
|
||||
goto err_close;
|
||||
} else if (evtmap & (1 << EV_KEY)) {
|
||||
/* has keys/buttons (and no x axis) -> assume keyboard */
|
||||
qemu_set_fd_handler(il->fd, input_linux_event_keyboard, NULL, il);
|
||||
} else {
|
||||
/* Huh? What is this? */
|
||||
error_setg(errp, "unknown kind of input device");
|
||||
goto err_close;
|
||||
if (evtmap & (1 << EV_KEY)) {
|
||||
memset(keymap, 0, sizeof(keymap));
|
||||
rc = ioctl(il->fd, EVIOCGBIT(EV_KEY, sizeof(keymap)), keymap);
|
||||
for (i = 0; i < KEY_CNT; i++) {
|
||||
if (keymap[i / 8] & (1 << (i % 8))) {
|
||||
if (linux_is_button(i)) {
|
||||
il->num_btns++;
|
||||
} else {
|
||||
il->num_keys++;
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
qemu_set_fd_handler(il->fd, input_linux_event, NULL, il);
|
||||
input_linux_toggle_grab(il);
|
||||
QTAILQ_INSERT_TAIL(&inputs, il, next);
|
||||
il->initialized = true;
|
||||
|
|
|
|||
Loading…
Reference in New Issue