mirror/86Box
1
0
Fork 0
mirror of https://github.com/86Box/86Box.git synced 2026-03-03 11:18:23 -07:00
Code Issues Packages Projects Releases Activity

Implement KBC reset hack for SeaBIOS soft reset

Browse Source
This commit is contained in:
RichardG867
2020-04-18 21:12:04 -03:00
parent 3e9d05be6d
commit c5e5728751
1 changed files with 11 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files

13
src/keyboard_at.c
View File

@@ -1035,8 +1035,17 @@ write_output(atkbd_t *dev, uint8_t val)
if ((dev->output_port ^ val) & 0x01) { /*Reset*/
if (! (val & 0x01)) {
/* Pin 0 selected. */
softresetx86(); /*Pulse reset!*/
cpu_set_edx();
if (machines[machine].flags & MACHINE_COREBOOT) {
/* The SeaBIOS hard reset code attempts a KBC reset if ACPI RESET_REG
is not available. However, the KBC reset is normally a soft reset, so
SeaBIOS gets caught in a soft reset loop as it tries to hard reset the
machine. Hack around this by making the KBC reset a hard reset only on
coreboot machines. */
pc_reset(1);
} else {
softresetx86(); /*Pulse reset!*/
cpu_set_edx();
}
}
}
/* Mask off the A20 stuff because we use mem_a20_key directly for that. */