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add keyboard ID switcher for PS/55

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This commit is contained in:
Akamaki
2025-02-22 23:53:44 +09:00
parent 23045ccf60
commit 0b97701e7a
1 changed files with 13 additions and 6 deletions
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19
src/device/keyboard_at.c
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@@ -25,6 +25,7 @@
#include <86box/device.h>
#include <86box/keyboard.h>
#include <86box/mouse.h>
#include <86box/machine.h>
#define FLAG_PS2 0x08 /* dev is AT or PS/2 */
#define FLAG_AT 0x00 /* dev is AT or PS/2 */
@@ -1639,14 +1640,14 @@ static const scancode scancode_set3[512] = {
5576 keyboards kept 101-key compatible scancode sets because PS/55 had to support western (PS/2) versions of operating systems.
The default scancode set is 2.
In Japanese DOS, the keyboard driver confirms its keyboard ID, and sends a command to switch the scancode set to 8Ah.
Japanese OS/2 and Windows use the scancode set 82h.
Japanese OS/2 and Windows use the scancode set 81h or 82h.
The OADG standard (1991-) and modern Japanese keyboards use the same keyboard ID and scancode set number as PS/2 keyboards use.
The OADG standard (1991-) and modern Japanese keyboards use the same keyboard ID and scancode set ID as PS/2 keyboards use.
Three extra scancode sets are no longer available. Instead, language input keys are available in scancode set 1 and 2.
However, their physical key layout is a bit-paired layout.
Users have to choose the correct keyboard layout on setup, and the driver needs to remap keys.
Currently, scancode set 81h and 82h are not implemented yet. Also, the key layout is designed to match with the Japanese keyboard.
Currently, the key mapping is designed to match with the Japanese layout keyboard.
[Japanese DOS and keyboard scancode set comparison]
| | K3.3 | J4.0 | J5.0 | J4.0/V | J5.0/V | OS/2 J1.3 | DOS 5(US)|
@@ -3208,7 +3209,7 @@ static scancode scancode_set8a[512] =
{.mk = { 0 }, .brk = { 0 } } /* 1ff */
// clang-format on
};
#define ENABLE_KEYBOARD_AT_LOG 1
#ifdef ENABLE_KEYBOARD_AT_LOG
int keyboard_at_do_log = ENABLE_KEYBOARD_AT_LOG;
@@ -3741,8 +3742,14 @@ keyboard_at_init(const device_t *info)
Key 63 = Japanese key between right Ctrl and right Alt, scan code: 86 (Henkan/Zenkouho 79);
Key 65? = Japanese key between right Ctrl and right Alt, scan code: 87 (Hiragana/Katakana 70).
*/
// dev->type = FLAG_PS2 | KBD_102_KEY /* device_get_config_int("type") */;
dev->type = FLAG_PS2 | KBD_JIS;
dev->type = FLAG_PS2 | KBD_102_KEY /* device_get_config_int("type") */;
/*
We assume that the IBM PS/55 machine uses the 5576-002 keyboard (JP/CN layout) here.
This is not smart but suitable for supporting a keyboard ID that is rarely used in standard PCs.
At least, the Taiwanese PS/55 uses the same keyboard ID and scancode set. The Korean one is unknown.
*/
if (!!strstr(machine_getname(), "PS/55"))
dev->type = FLAG_PS2 | KBD_JIS;
keyboard_at_log("%s: type=%d\n", dev->name, dev->type);