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fix(jb/p4io): Fix IO buffer inconsistency/random input misfiring

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icex2 2023-03-30 23:34:17 +02:00 committed by icex2
parent e530968dab
commit 58d4130c2a
1 changed files with 8 additions and 4 deletions
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12
src/main/jbhook-util/p4io.c
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@ -90,12 +90,12 @@ static const uint32_t jbhook_io_sys_button_mappings[] = {
static void jbhook_io_jamma2_read(void *resp, uint32_t nbytes)
{
uint32_t *inputs = (uint32_t *) resp;
uint32_t inputs_out;
uint16_t panels;
uint8_t buttons;
/* lower three bytes low active, highest byte high active */
*inputs = 0x00FFFFFF;
inputs_out = 0x00FFFFFF;
if (!jb_io_read_inputs()) {
log_warning("Reading inputs from jbio failed");
@ -107,15 +107,19 @@ static void jbhook_io_jamma2_read(void *resp, uint32_t nbytes)
for (uint8_t i = 0; i < 16; i++) {
if (panels & (1 << i)) {
*inputs &= ~jbhook_io_panel_mappings[i];
inputs_out &= ~jbhook_io_panel_mappings[i];
}
}
for (uint8_t i = 0; i < 3; i++) {
if (buttons & (1 << i)) {
*inputs |= jbhook_io_sys_button_mappings[i];
inputs_out |= jbhook_io_sys_button_mappings[i];
}
}
// Single write to external/game managed buffer to reduce risk for
// inconsistent state/random input misfiring
*((uint32_t *) resp) = inputs_out;
}
static uint32_t jbhook_command_handle(