diff options
Diffstat (limited to 'simulator/wrapsim/DevEvent.c')
| -rw-r--r-- | simulator/wrapsim/DevEvent.c | 436 |
1 files changed, 0 insertions, 436 deletions
diff --git a/simulator/wrapsim/DevEvent.c b/simulator/wrapsim/DevEvent.c deleted file mode 100644 index 60060f496..000000000 --- a/simulator/wrapsim/DevEvent.c +++ /dev/null @@ -1,436 +0,0 @@ -/* - * Copyright 2007 The Android Open Source Project - * - * Input event device. - */ -#include "Common.h" - -#include <stdlib.h> -#include <string.h> - -#include <fcntl.h> -#include <sys/ioctl.h> -#include <linux/input.h> - - -/* - * Input event device state. - */ -typedef struct EventState { - struct input_id ident; - - char* name; - char* location; - char* idstr; - int protoVersion; -} EventState; - -/* - * Key bit mask, for EVIOCGBIT(EV_KEY). - * - * (For now, just pretend to be a "goldfish" like the emulator.) - */ -static const unsigned char gKeyBitMask[64] = { - // These bits indicate which keys the device has - 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, - 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, - 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, - 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, - // These bits indicate other capabilities, such - // as whether it's a trackball or a touchscreen - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x04, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // touchscreen - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, -}; - -/* - * Abs bit mask, for EVIOCGBIT(EV_ABS). - * - * Pretend to be a normal single touch panel - */ -static const unsigned char gAbsBitMask[64] = { - // these bits indicate the capabilities of the touch screen - 0x03, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // ABS_X, ABS_Y - 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, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, -}; - -/* - * Set some stuff up. - */ -static void configureInitialState(const char* pathName, EventState* eventState) -{ - /* - * Swim like a goldfish. - */ - eventState->ident.bustype = 0; - eventState->ident.vendor = 0; - eventState->ident.product = 0; - eventState->ident.version = 0; - - eventState->name = strdup(gWrapSim.keyMap); - eventState->location = strdup(""); - eventState->idstr = strdup(""); - eventState->protoVersion = 0x010000; -} - -/* - * Free up the state structure. - */ -static void freeState(EventState* eventState) -{ - if (eventState != NULL) { - free(eventState->name); - free(eventState->location); - free(eventState->idstr); - free(eventState); - } -} - -/* - * Handle one of the EVIOCGABS requests. - * - * Currently not doing much here. - */ -static void handleAbsGet(int reqIdx, void* argp) -{ - struct input_absinfo info; - - switch (reqIdx) { - case ABS_X: - wsLog(" req for abs X\n"); - break; - case ABS_Y: - wsLog(" req for abs Y\n"); - break; - case ABS_PRESSURE: - wsLog(" req for abs PRESSURE\n"); - break; - case ABS_TOOL_WIDTH: - wsLog(" req for abs TOOL_WIDTH\n"); - break; - default: - wsLog(" req for unexpected event abs 0x%02x\n", reqIdx); - break; - } - - memset(&info, 0, sizeof(info)); - memcpy(argp, &info, sizeof(struct input_absinfo)); -} - -/* - * Return the next available input event. - * - * We just pass this through to the real "read", since "fd" is real. - */ -static ssize_t readEvent(FakeDev* dev, int fd, void* buf, size_t count) -{ - return _ws_read(fd, buf, count); -} - -/* - * Somebody is trying to write to the event pipe. This can be used to set - * the state of LED. - */ -static ssize_t writeEvent(FakeDev* dev, int fd, const void* buf, size_t count) -{ - const struct input_event* piev; - - if (count == sizeof(*piev)) { - piev = (const struct input_event*) buf; - - if (piev->type == EV_LED) { - wsLog("%s: set LED code=%d value=%d\n", - dev->debugName, piev->code, piev->value); - } else { - wsLog("%s: writeEvent got %d bytes, type=%d\n", - dev->debugName, count, piev->type); - } - } else { - wsLog("%s: warning: writeEvent got %d bytes, not sure why\n", - dev->debugName, count); - } - - return count; -} - -/* - * Handle event ioctls. - */ -static int ioctlEvent(FakeDev* dev, int fd, int request, void* argp) -{ - EventState* state = (EventState*) dev->state; - unsigned int urequest = (unsigned int) request; - - wsLog("%s: ioctl(0x%x, %p)\n", dev->debugName, urequest, argp); - - if (_IOC_TYPE(urequest) != _IOC_TYPE(EVIOCGVERSION)) { - wsLog("%s: inappropriate ioctl 0x%08x\n", dev->debugName, urequest); - return -1; - } - - if (urequest == EVIOCGVERSION) { - *(int*)argp = state->protoVersion; - } else if (urequest == EVIOCGID) { - memcpy(argp, &state->ident, sizeof(struct input_id)); - } else if (_IOC_NR(urequest) == _IOC_NR(EVIOCGNAME(0))) { - int maxLen = _IOC_SIZE(urequest); - int strLen = (int) strlen(state->name); - if (strLen >= maxLen) { - errno = EINVAL; - return -1; - } - memcpy(argp, state->name, strLen+1); - return strLen; - } else if (_IOC_NR(urequest) == _IOC_NR(EVIOCGPHYS(0))) { - int maxLen = _IOC_SIZE(urequest); - int strLen = (int) strlen(state->location); - if (strLen >= maxLen) { - errno = EINVAL; - return -1; - } - memcpy(argp, state->location, strLen+1); - return strLen; - } else if (_IOC_NR(urequest) == _IOC_NR(EVIOCGUNIQ(0))) { - /* device doesn't seem to support this, neither will we */ - return -1; - } else if (_IOC_NR(urequest) == _IOC_NR(EVIOCGBIT(EV_KEY,0))) { - /* keys */ - int maxLen = _IOC_SIZE(urequest); - if (maxLen > (int) sizeof(gKeyBitMask)) - maxLen = sizeof(gKeyBitMask); - memcpy(argp, gKeyBitMask, maxLen); - } else if (_IOC_NR(urequest) == _IOC_NR(EVIOCGBIT(EV_REL,0))) { - /* relative controllers (trackball) */ - int maxLen = _IOC_SIZE(urequest); - memset(argp, 0xff, maxLen); - } else if (!getenv("NOTOUCH") && _IOC_NR(urequest) == _IOC_NR(EVIOCGBIT(EV_ABS,0))) { - // absolute controllers (touch screen) - int maxLen = _IOC_SIZE(urequest); - if (maxLen > (int) sizeof(gAbsBitMask)) - maxLen = sizeof(gAbsBitMask); - memcpy(argp, gAbsBitMask, maxLen); - - } else if (_IOC_NR(urequest) >= _IOC_NR(EVIOCGABS(ABS_X)) && - _IOC_NR(urequest) <= _IOC_NR(EVIOCGABS(ABS_MAX))) - { - /* get abs value / limits */ - int reqIdx = _IOC_NR(urequest) - _IOC_NR(EVIOCGABS(ABS_X)); - handleAbsGet(reqIdx, argp); - } else { - wsLog("GLITCH: UNKNOWN ioctl request 0x%x on %s\n", - urequest, dev->debugName); - return -1; - } - - return 0; -} - -/* - * Free up our state before closing down the fake descriptor. - */ -static int closeEvent(FakeDev* dev, int fd) -{ - freeState((EventState*)dev->state); - dev->state = NULL; - if (gWrapSim.keyInputDevice == dev) { - gWrapSim.keyInputDevice = NULL; - wsLog("Sim input device closed\n"); - } - return 0; -} - -/* - * Open an input event device. - */ -FakeDev* wsOpenDevEvent(const char* pathName, int flags) -{ - FakeDev* newDev = wsCreateRealFakeDev(pathName); - if (newDev != NULL) { - newDev->read = readEvent; - newDev->write = writeEvent; - newDev->ioctl = ioctlEvent; - newDev->close = closeEvent; - - EventState* eventState = calloc(1, sizeof(EventState)); - - configureInitialState(pathName, eventState); - newDev->state = eventState; - - /* - * First one opened becomes the place where we queue up input - * events from the simulator. This approach will fail if the - * app opens the device, then opens it a second time for input, - * then closes the first. The app doesn't currently do this (though - * it does do quick opens to fiddle with LEDs). - */ - if (gWrapSim.keyInputDevice == NULL) { - gWrapSim.keyInputDevice = newDev; - wsLog("Device %p / %d will receive sim input events\n", - newDev, newDev->fd); - } - } - - return newDev; -} - -/* - * Write a key event. - */ -static int sendKeyEvent(FakeDev* dev, int code, int isDown) -{ - struct input_event iev; - ssize_t actual; - - gettimeofday(&iev.time, NULL); - iev.type = EV_KEY; - iev.code = code; - iev.value = (isDown != 0) ? 1 : 0; - - actual = _ws_write(dev->otherFd, &iev, sizeof(iev)); - if (actual != (ssize_t) sizeof(iev)) { - wsLog("WARNING: send key event partial write (%d of %d)\n", - actual, sizeof(iev)); - return -1; - } - - return 0; -} - -/* - * Write an absolute (touch screen) event. - */ -static int sendAbsButton(FakeDev* dev, int x, int y, int isDown) -{ - struct input_event iev; - ssize_t actual; - - wsLog("absButton x=%d y=%d down=%d\n", x, y, isDown); - - gettimeofday(&iev.time, NULL); - iev.type = EV_KEY; - iev.code = BTN_TOUCH; - iev.value = (isDown != 0) ? 1 : 0; - - actual = _ws_write(dev->otherFd, &iev, sizeof(iev)); - if (actual != (ssize_t) sizeof(iev)) { - wsLog("WARNING: send touch event partial write (%d of %d)\n", - actual, sizeof(iev)); - return -1; - } - - return 0; -} - -/* - * Write an absolute (touch screen) event. - */ -static int sendAbsMovement(FakeDev* dev, int x, int y) -{ - struct input_event iev; - ssize_t actual; - - wsLog("absMove x=%d y=%d\n", x, y); - - gettimeofday(&iev.time, NULL); - iev.type = EV_ABS; - iev.code = ABS_X; - iev.value = x; - - actual = _ws_write(dev->otherFd, &iev, sizeof(iev)); - if (actual != (ssize_t) sizeof(iev)) { - wsLog("WARNING: send abs movement event partial X write (%d of %d)\n", - actual, sizeof(iev)); - return -1; - } - - iev.code = ABS_Y; - iev.value = y; - - actual = _ws_write(dev->otherFd, &iev, sizeof(iev)); - if (actual != (ssize_t) sizeof(iev)) { - wsLog("WARNING: send abs movement event partial Y write (%d of %d)\n", - actual, sizeof(iev)); - return -1; - } - - return 0; -} - -/* - * Not quite sure what this is for, but the emulator does it. - */ -static int sendAbsSyn(FakeDev* dev) -{ - struct input_event iev; - ssize_t actual; - - gettimeofday(&iev.time, NULL); - iev.type = EV_SYN; - iev.code = 0; - iev.value = 0; - - actual = _ws_write(dev->otherFd, &iev, sizeof(iev)); - if (actual != (ssize_t) sizeof(iev)) { - wsLog("WARNING: send abs movement syn (%d of %d)\n", - actual, sizeof(iev)); - return -1; - } - - return 0; -} - -/* - * Send a key event to the fake key event device. - * - * We have to translate the simulator key event into one or more device - * key events. - */ -void wsSendSimKeyEvent(int key, int isDown) -{ - FakeDev* dev; - EventState* state; - - dev = gWrapSim.keyInputDevice; - if (dev == NULL) - return; - - sendKeyEvent(dev, key, isDown); -} - -/* - * Send a touch-screen event to the fake key event device. - * - * We have to translate the simulator key event into one or more device - * key events. - */ -void wsSendSimTouchEvent(int action, int x, int y) -{ - FakeDev* dev; - EventState* state; - - dev = gWrapSim.keyInputDevice; - if (dev == NULL) - return; - - if (action == kTouchDown) { - sendAbsMovement(dev, x, y); - sendAbsButton(dev, x, y, 1); - sendAbsSyn(dev); - } else if (action == kTouchUp) { - sendAbsButton(dev, x, y, 0); - sendAbsSyn(dev); - } else if (action == kTouchDrag) { - sendAbsMovement(dev, x, y); - sendAbsSyn(dev); - } else { - wsLog("WARNING: unexpected sim touch action %d\n", action); - } -} - |