static void
vrkiu_scan(struct vrkiu_chip* chip)
{
int i, j, modified, mask;
unsigned short scandata[KIU_NSCANLINE/2];
if (!chip->kc_enabled)
return;
for (i = 0; i < KIU_NSCANLINE / 2; i++) {
scandata[i] = vrkiu_read(chip, KIUDATP + i * 2);
}
eliminate_phantom_keys(chip, scandata);
for (i = 0; i < KIU_NSCANLINE / 2; i++) {
modified = scandata[i] ^ chip->kc_scandata[i];
chip->kc_scandata[i] = scandata[i];
mask = 1;
for (j = 0; j < 16; j++, mask <<= 1) {
/*
* Simultaneous keypresses are resolved by registering
* the one with the lowest bit index first.
*/
if (modified & mask) {
int key = i * 16 + j;
DPRINTF(("vrkiu_scan: %s(%d,%d)\n",
(scandata[i] & mask) ? "down" : "up",
i, j));
hpckbd_input(chip->kc_hpckbd,
(scandata[i] & mask), key);
}
}
}
}
void
tc5165buf_soft(void *arg)
{
struct tc5165buf_chip *scc = arg;
bus_space_tag_t t = scc->scc_cst;
bus_space_handle_t h = scc->scc_csh;
u_int16_t mask, rpat, edge;
int i, j, type, val;
int s;
hpckbd_input_hook(scc->scc_hpckbd);
/* clear scanlines */
(void)bus_space_read_2(t, h, 0);
delay(3);
for (i = 0; i < TC5165_COLUMN_MAX; i++) {
rpat = bus_space_read_2(t, h, 2 << i);
delay(3);
(void)bus_space_read_2(t, h, 0);
delay(3);
if ((edge = (rpat ^ scc->scc_buf[i]))) {
scc->scc_buf[i] = rpat;
for (j = 0, mask = 1; j < TC5165_ROW_MAX;
j++, mask <<= 1) {
if (mask & edge) {
type = mask & rpat ? 1 : 0;
val = j * TC5165_COLUMN_MAX + i;
DPRINTF(("%d %d\n", j, i));
hpckbd_input(scc->scc_hpckbd,
type, val);
}
}
}
}
s = spltty();
scc->scc_queued = 0;
splx(s);
}