#include <sys/ioctl.h>
#include "standard-headers/linux/input.h"
-static int linux_to_qcode[KEY_CNT] = {
- [KEY_ESC] = Q_KEY_CODE_ESC,
- [KEY_1] = Q_KEY_CODE_1,
- [KEY_2] = Q_KEY_CODE_2,
- [KEY_3] = Q_KEY_CODE_3,
- [KEY_4] = Q_KEY_CODE_4,
- [KEY_5] = Q_KEY_CODE_5,
- [KEY_6] = Q_KEY_CODE_6,
- [KEY_7] = Q_KEY_CODE_7,
- [KEY_8] = Q_KEY_CODE_8,
- [KEY_9] = Q_KEY_CODE_9,
- [KEY_0] = Q_KEY_CODE_0,
- [KEY_MINUS] = Q_KEY_CODE_MINUS,
- [KEY_EQUAL] = Q_KEY_CODE_EQUAL,
- [KEY_BACKSPACE] = Q_KEY_CODE_BACKSPACE,
- [KEY_TAB] = Q_KEY_CODE_TAB,
- [KEY_Q] = Q_KEY_CODE_Q,
- [KEY_W] = Q_KEY_CODE_W,
- [KEY_E] = Q_KEY_CODE_E,
- [KEY_R] = Q_KEY_CODE_R,
- [KEY_T] = Q_KEY_CODE_T,
- [KEY_Y] = Q_KEY_CODE_Y,
- [KEY_U] = Q_KEY_CODE_U,
- [KEY_I] = Q_KEY_CODE_I,
- [KEY_O] = Q_KEY_CODE_O,
- [KEY_P] = Q_KEY_CODE_P,
- [KEY_LEFTBRACE] = Q_KEY_CODE_BRACKET_LEFT,
- [KEY_RIGHTBRACE] = Q_KEY_CODE_BRACKET_RIGHT,
- [KEY_ENTER] = Q_KEY_CODE_RET,
- [KEY_LEFTCTRL] = Q_KEY_CODE_CTRL,
- [KEY_A] = Q_KEY_CODE_A,
- [KEY_S] = Q_KEY_CODE_S,
- [KEY_D] = Q_KEY_CODE_D,
- [KEY_F] = Q_KEY_CODE_F,
- [KEY_G] = Q_KEY_CODE_G,
- [KEY_H] = Q_KEY_CODE_H,
- [KEY_J] = Q_KEY_CODE_J,
- [KEY_K] = Q_KEY_CODE_K,
- [KEY_L] = Q_KEY_CODE_L,
- [KEY_SEMICOLON] = Q_KEY_CODE_SEMICOLON,
- [KEY_APOSTROPHE] = Q_KEY_CODE_APOSTROPHE,
- [KEY_GRAVE] = Q_KEY_CODE_GRAVE_ACCENT,
- [KEY_LEFTSHIFT] = Q_KEY_CODE_SHIFT,
- [KEY_BACKSLASH] = Q_KEY_CODE_BACKSLASH,
- [KEY_102ND] = Q_KEY_CODE_LESS,
- [KEY_Z] = Q_KEY_CODE_Z,
- [KEY_X] = Q_KEY_CODE_X,
- [KEY_C] = Q_KEY_CODE_C,
- [KEY_V] = Q_KEY_CODE_V,
- [KEY_B] = Q_KEY_CODE_B,
- [KEY_N] = Q_KEY_CODE_N,
- [KEY_M] = Q_KEY_CODE_M,
- [KEY_COMMA] = Q_KEY_CODE_COMMA,
- [KEY_DOT] = Q_KEY_CODE_DOT,
- [KEY_SLASH] = Q_KEY_CODE_SLASH,
- [KEY_RIGHTSHIFT] = Q_KEY_CODE_SHIFT_R,
- [KEY_LEFTALT] = Q_KEY_CODE_ALT,
- [KEY_SPACE] = Q_KEY_CODE_SPC,
- [KEY_CAPSLOCK] = Q_KEY_CODE_CAPS_LOCK,
- [KEY_F1] = Q_KEY_CODE_F1,
- [KEY_F2] = Q_KEY_CODE_F2,
- [KEY_F3] = Q_KEY_CODE_F3,
- [KEY_F4] = Q_KEY_CODE_F4,
- [KEY_F5] = Q_KEY_CODE_F5,
- [KEY_F6] = Q_KEY_CODE_F6,
- [KEY_F7] = Q_KEY_CODE_F7,
- [KEY_F8] = Q_KEY_CODE_F8,
- [KEY_F9] = Q_KEY_CODE_F9,
- [KEY_F10] = Q_KEY_CODE_F10,
- [KEY_NUMLOCK] = Q_KEY_CODE_NUM_LOCK,
- [KEY_SCROLLLOCK] = Q_KEY_CODE_SCROLL_LOCK,
- [KEY_KP0] = Q_KEY_CODE_KP_0,
- [KEY_KP1] = Q_KEY_CODE_KP_1,
- [KEY_KP2] = Q_KEY_CODE_KP_2,
- [KEY_KP3] = Q_KEY_CODE_KP_3,
- [KEY_KP4] = Q_KEY_CODE_KP_4,
- [KEY_KP5] = Q_KEY_CODE_KP_5,
- [KEY_KP6] = Q_KEY_CODE_KP_6,
- [KEY_KP7] = Q_KEY_CODE_KP_7,
- [KEY_KP8] = Q_KEY_CODE_KP_8,
- [KEY_KP9] = Q_KEY_CODE_KP_9,
- [KEY_KPMINUS] = Q_KEY_CODE_KP_SUBTRACT,
- [KEY_KPPLUS] = Q_KEY_CODE_KP_ADD,
- [KEY_KPDOT] = Q_KEY_CODE_KP_DECIMAL,
- [KEY_KPENTER] = Q_KEY_CODE_KP_ENTER,
- [KEY_KPSLASH] = Q_KEY_CODE_KP_DIVIDE,
- [KEY_KPASTERISK] = Q_KEY_CODE_KP_MULTIPLY,
- [KEY_F11] = Q_KEY_CODE_F11,
- [KEY_F12] = Q_KEY_CODE_F12,
- [KEY_RIGHTCTRL] = Q_KEY_CODE_CTRL_R,
- [KEY_SYSRQ] = Q_KEY_CODE_SYSRQ,
- [KEY_RIGHTALT] = Q_KEY_CODE_ALT_R,
- [KEY_HOME] = Q_KEY_CODE_HOME,
- [KEY_UP] = Q_KEY_CODE_UP,
- [KEY_PAGEUP] = Q_KEY_CODE_PGUP,
- [KEY_LEFT] = Q_KEY_CODE_LEFT,
- [KEY_RIGHT] = Q_KEY_CODE_RIGHT,
- [KEY_END] = Q_KEY_CODE_END,
- [KEY_DOWN] = Q_KEY_CODE_DOWN,
- [KEY_PAGEDOWN] = Q_KEY_CODE_PGDN,
- [KEY_INSERT] = Q_KEY_CODE_INSERT,
- [KEY_DELETE] = Q_KEY_CODE_DELETE,
- [KEY_LEFTMETA] = Q_KEY_CODE_META_L,
- [KEY_RIGHTMETA] = Q_KEY_CODE_META_R,
- [KEY_MENU] = Q_KEY_CODE_MENU,
-};
-
-static int qemu_input_linux_to_qcode(unsigned int lnx)
+static bool linux_is_button(unsigned int lnx)
{
- assert(lnx < KEY_CNT);
- return linux_to_qcode[lnx];
+ if (lnx < 0x100) {
+ return false;
+ }
+ if (lnx >= 0x160 && lnx < 0x2c0) {
+ return false;
+ }
+ return true;
}
#define TYPE_INPUT_LINUX "input-linux"
int keycount;
int wheel;
bool initialized;
+
+ bool has_rel_x;
+ bool has_abs_x;
+ int num_keys;
+ int num_btns;
+ int abs_x_min;
+ int abs_x_max;
+ int abs_y_min;
+ int abs_y_max;
+ struct input_event event;
+ int read_offset;
+
QTAILQ_ENTRY(InputLinux) next;
};
}
}
-static void input_linux_event_keyboard(void *opaque)
+static void input_linux_handle_keyboard(InputLinux *il,
+ struct input_event *event)
{
- InputLinux *il = opaque;
- struct input_event event;
- int rc;
-
- for (;;) {
- rc = read(il->fd, &event, sizeof(event));
- if (rc != sizeof(event)) {
- if (rc < 0 && errno != EAGAIN) {
- fprintf(stderr, "%s: read: %s\n", __func__, strerror(errno));
- qemu_set_fd_handler(il->fd, NULL, NULL, NULL);
- close(il->fd);
- }
- break;
+ if (event->type == EV_KEY) {
+ if (event->value > 2 || (event->value > 1 && !il->repeat)) {
+ /*
+ * ignore autorepeat + unknown key events
+ * 0 == up, 1 == down, 2 == autorepeat, other == undefined
+ */
+ return;
+ }
+ if (event->code >= KEY_CNT) {
+ /*
+ * Should not happen. But better safe than sorry,
+ * and we make Coverity happy too.
+ */
+ return;
}
- 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);
}
}
}
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;
+ case BTN_SIDE:
+ qemu_input_queue_btn(NULL, INPUT_BUTTON_SIDE, event->value);
+ break;
+ case BTN_EXTRA:
+ qemu_input_queue_btn(NULL, INPUT_BUTTON_EXTRA, 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_ABS:
+ switch (event->code) {
+ case ABS_X:
+ qemu_input_queue_abs(NULL, INPUT_AXIS_X, event->value,
+ il->abs_x_min, il->abs_x_max);
+ break;
+ case ABS_Y:
+ qemu_input_queue_abs(NULL, INPUT_AXIS_Y, event->value,
+ il->abs_y_min, il->abs_y_max);
+ 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;
int rc;
+ int read_size;
+ uint8_t *p = (uint8_t *)&il->event;
for (;;) {
- rc = read(il->fd, &event, sizeof(event));
- if (rc != sizeof(event)) {
+ read_size = sizeof(il->event) - il->read_offset;
+ rc = read(il->fd, &p[il->read_offset], read_size);
+ if (rc != read_size) {
if (rc < 0 && errno != EAGAIN) {
fprintf(stderr, "%s: read: %s\n", __func__, strerror(errno));
qemu_set_fd_handler(il->fd, NULL, NULL, NULL);
close(il->fd);
+ } else if (rc > 0) {
+ il->read_offset += rc;
}
break;
}
+ il->read_offset = 0;
- /* only send event to guest when grab is active */
- if (!il->grab_active) {
- continue;
+ if (il->num_keys) {
+ input_linux_handle_keyboard(il, &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->has_abs_x) && il->num_btns) {
+ input_linux_handle_mouse(il, &il->event);
}
}
}
static void input_linux_complete(UserCreatable *uc, Error **errp)
{
InputLinux *il = INPUT_LINUX(uc);
- uint32_t evtmap;
+ uint8_t evtmap, relmap, absmap;
+ uint8_t keymap[KEY_CNT / 8], keystate[KEY_CNT / 8];
+ unsigned int i;
int rc, ver;
+ struct input_absinfo absinfo;
if (!il->evdev) {
error_setg(errp, "no input device specified");
}
rc = ioctl(il->fd, EVIOCGBIT(0, sizeof(evtmap)), &evtmap);
+ if (rc < 0) {
+ error_setg(errp, "%s: failed to read event bits", il->evdev);
+ goto err_close;
+ }
if (evtmap & (1 << EV_REL)) {
- /* has relative axis -> assume mouse */
- qemu_set_fd_handler(il->fd, input_linux_event_mouse, NULL, il);
- } else if (evtmap & (1 << EV_ABS)) {
- /* has absolute axis -> not supported */
- error_setg(errp, "tablet/touchscreen not supported");
- goto err_close;
- } else if (evtmap & (1 << EV_KEY)) {
- /* has keys/buttons (and no axis) -> assume keyboard */
- qemu_set_fd_handler(il->fd, input_linux_event_keyboard, NULL, il);
+ relmap = 0;
+ rc = ioctl(il->fd, EVIOCGBIT(EV_REL, sizeof(relmap)), &relmap);
+ if (relmap & (1 << REL_X)) {
+ il->has_rel_x = true;
+ }
+ }
+
+ if (evtmap & (1 << EV_ABS)) {
+ absmap = 0;
+ rc = ioctl(il->fd, EVIOCGBIT(EV_ABS, sizeof(absmap)), &absmap);
+ if (absmap & (1 << ABS_X)) {
+ il->has_abs_x = true;
+ rc = ioctl(il->fd, EVIOCGABS(ABS_X), &absinfo);
+ il->abs_x_min = absinfo.minimum;
+ il->abs_x_max = absinfo.maximum;
+ rc = ioctl(il->fd, EVIOCGABS(ABS_Y), &absinfo);
+ il->abs_y_min = absinfo.minimum;
+ il->abs_y_max = absinfo.maximum;
+ }
+ }
+
+ if (evtmap & (1 << EV_KEY)) {
+ memset(keymap, 0, sizeof(keymap));
+ rc = ioctl(il->fd, EVIOCGBIT(EV_KEY, sizeof(keymap)), keymap);
+ rc = ioctl(il->fd, EVIOCGKEY(sizeof(keystate)), keystate);
+ 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++;
+ }
+ if (keystate[i / 8] & (1 << (i % 8))) {
+ il->keydown[i] = true;
+ il->keycount++;
+ }
+ }
+ }
+ }
+
+ qemu_set_fd_handler(il->fd, input_linux_event, NULL, il);
+ if (il->keycount) {
+ /* delay grab until all keys are released */
+ il->grab_request = true;
} else {
- /* Huh? What is this? */
- error_setg(errp, "unknown kind of input device");
- goto err_close;
+ input_linux_toggle_grab(il);
}
- input_linux_toggle_grab(il);
QTAILQ_INSERT_TAIL(&inputs, il, next);
il->initialized = true;
return;
projects / qemu.git / blobdiff