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[PATCH v2 16/20] mac_via: implement ADB_STATE_IDLE state if shift regist
From: |
Mark Cave-Ayland |
Subject: |
[PATCH v2 16/20] mac_via: implement ADB_STATE_IDLE state if shift register in input mode |
Date: |
Sat, 9 Sep 2023 10:48:23 +0100 |
NetBSD switches directly to IDLE state without switching the shift register to
input mode. Duplicate the existing ADB_STATE_IDLE logic in input mode from when
the shift register is in output mode which allows the ADB autopoll handler to
handle the response.
Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
---
hw/misc/mac_via.c | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/hw/misc/mac_via.c b/hw/misc/mac_via.c
index 208216aed3..398e8d1967 100644
--- a/hw/misc/mac_via.c
+++ b/hw/misc/mac_via.c
@@ -702,6 +702,12 @@ static void adb_via_send(MOS6522Q800VIA1State *v1s, int
state, uint8_t data)
break;
case ADB_STATE_IDLE:
+ ms->b |= VIA1B_vADBInt;
+ adb_autopoll_unblock(adb_bus);
+
+ trace_via1_adb_send("IDLE", data,
+ (ms->b & VIA1B_vADBInt) ? "+" : "-");
+
return;
}
--
2.39.2
- [PATCH v2 12/20] swim: split into separate IWM and ISM register blocks, (continued)
- [PATCH v2 12/20] swim: split into separate IWM and ISM register blocks, Mark Cave-Ayland, 2023/09/09
- [PATCH v2 13/20] swim: update IWM/ISM register block decoding, Mark Cave-Ayland, 2023/09/09
- [PATCH v2 14/20] mac_via: work around underflow in TimeDBRA timing loop in SETUPTIMEK, Mark Cave-Ayland, 2023/09/09
- [PATCH v2 15/20] mac_via: workaround NetBSD ADB bus enumeration issue, Mark Cave-Ayland, 2023/09/09
- [PATCH v2 16/20] mac_via: implement ADB_STATE_IDLE state if shift register in input mode,
Mark Cave-Ayland <=
- [PATCH v2 17/20] mac_via: always clear ADB interrupt when switching to A/UX mode, Mark Cave-Ayland, 2023/09/09
- [PATCH v2 18/20] q800: add ESCC alias at 0xc000, Mark Cave-Ayland, 2023/09/09
- [PATCH v2 19/20] q800: add alias for MacOS toolbox ROM at 0x40000000, Mark Cave-Ayland, 2023/09/09
- [PATCH v2 20/20] mac_via: extend timer calibration hack to work with A/UX, Mark Cave-Ayland, 2023/09/09