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keysc: don't emit KEYEV_DOWN for keys pressed at startup

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This commit is contained in:
Lephe 2023-01-01 18:49:31 +01:00
parent d3b29c50e6
commit 478fdaea76
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GPG key ID: 1BBA026E13FC0495
1 changed files with 26 additions and 15 deletions
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41
src/keysc/keysc.c
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@ -14,7 +14,7 @@
#include <gint/drivers/iokbd.h>
#include <gint/hardware.h>
#include <stdarg.h>
#include <string.h>
/* Keyboard scan frequency in Hertz. Start with 128 Hz, this frequency *must
be high* for the keyboard to work! Reading at low frequencies produces a lot
@ -34,23 +34,29 @@ keydev_t *keydev_std(void)
return &keysc_dev;
}
/* keysc_scan(): Scand the keyboard */
static void keysc_scan(uint8_t *scan)
{
if(isSH3())
{
iokbd_scan(scan);
return;
}
volatile uint16_t *KEYSC = (void *)0xa44b0000;
for(int i = 0; i < 6; i++) {
int data = KEYSC[i];
scan[2*i] = data & 0xff;
scan[2*i+1] = data >> 8;
}
}
/* keysc_tick(): Update the keyboard to the next state */
static int keysc_tick(void)
{
GALIGNED(2) uint8_t scan[12] = { 0 };
/* Scan the key matrix: from I/O ports on SH3, KEYSC on SH4 */
if(isSH3()) iokbd_scan(scan);
else
{
volatile uint16_t *KEYSC = (void *)0xa44b0000;
uint16_t *array = (void *)&scan;
for(int i = 0; i < 6; i++) {
array[i] = KEYSC[i];
array[i] = (array[i] << 8) | (array[i] >> 8);
}
}
uint8_t scan[12] = { 0 };
keysc_scan(scan);
keydev_process_state(&keysc_dev, scan);
keydev_tick(&keysc_dev, keysc_scan_us);
@ -99,6 +105,11 @@ static void configure(void)
{
keydev_init(&keysc_dev);
/* Do a first scan to load the initial state (so that keys that are
pressed at startup are not registered as new presses) */
keysc_scan(keysc_dev.state_now);
memcpy(keysc_dev.state_queue, keysc_dev.state_now, 12);
/* Set the default repeat to 400/40 ms */
keydev_t *d = keydev_std();
keydev_set_transform(d, (keydev_transform_t){ KEYDEV_TR_REPEATS, NULL });