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#include "hwdata.h"
#include <errno.h>
/******************************************************/
static int parse_event(struct HWData *hw)
{
const struct input_event *ev = hw->event + hw->at++;
bool on = ev->value != 0;
switch (ev->type) {
case EV_SYN:
switch (ev->code) {
case SYN_REPORT:
return 0;
}
break;
case EV_KEY:
switch (ev->code) {
case BTN_LEFT:
hw->left = on;
break;
case BTN_MIDDLE:
hw->middle = on;
break;
case BTN_RIGHT:
hw->right = on;
break;
case BTN_MT_REPORT_PACKET:
if (on)
hw->nfinger = 0;
break;
case BTN_MT_REPORT_FINGER:
if (!on && hw->nfinger < DIM_FINGER)
hw->nfinger++;
break;
}
break;
case EV_ABS:
switch (ev->code) {
case ABS_MT_TOUCH_MAJOR:
hw->finger[hw->nfinger].touch_major = ev->value;
break;
case ABS_MT_TOUCH_MINOR:
hw->finger[hw->nfinger].touch_minor = ev->value;
break;
case ABS_MT_WIDTH_MAJOR:
hw->finger[hw->nfinger].width_major = ev->value;
break;
case ABS_MT_WIDTH_MINOR:
hw->finger[hw->nfinger].width_minor = ev->value;
break;
case ABS_MT_ORIENTATION:
hw->finger[hw->nfinger].orientation = ev->value;
break;
case ABS_MT_POSITION_X:
hw->finger[hw->nfinger].position_x = ev->value;
break;
case ABS_MT_POSITION_Y:
hw->finger[hw->nfinger].position_y = ev->value;
break;
}
break;
}
return -EAGAIN;
}
/******************************************************/
int read_hwdata(struct HWData *hw, int fd)
{
int n;
do {
while (hw->at < hw->nev)
if (!parse_event(hw))
return 0;
n = read(fd, hw->event, sizeof(hw->event));
hw->at = 0;
hw->nev = n / sizeof(struct input_event);
xf86Msg(X_INFO, "multitouch: read: %d %d\n", n, hw->nev);
} while (n > 0);
return -EIO;
};
/******************************************************/
void output_hwdata(const struct HWData *hw)
{
}
/******************************************************/
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