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Re: [PATCH] hw/intc/i8259: Implement legacy LTIM Edge/Level Bank Select
From: |
David Woodhouse |
Subject: |
Re: [PATCH] hw/intc/i8259: Implement legacy LTIM Edge/Level Bank Select |
Date: |
Thu, 02 Mar 2023 09:58:22 +0000 |
User-agent: |
Evolution 3.44.4-0ubuntu1 |
On Thu, 2023-03-02 at 09:06 +0000, David Woodhouse wrote:
> Back in the mists of time, before IBM PS/2 came along with MCA and added
> per-pin level control in the ELCR register, the i8259 had a chip-wide
> level-mode control in bit 3 of ICW1.
Actually... I think MCA might have been level triggered system-wide,
and still used this LTIM bit. Per-pin control via ELCR probably came in
with EISA?
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- Re: [PATCH v5 5/7] hw/isa/vt82c686: Work around missing level sensitive irq in i8259 model, Bernhard Beschow, 2023/03/01
- Re: [PATCH v5 5/7] hw/isa/vt82c686: Work around missing level sensitive irq in i8259 model, BALATON Zoltan, 2023/03/01
- Re: [PATCH v5 5/7] hw/isa/vt82c686: Work around missing level sensitive irq in i8259 model, David Woodhouse, 2023/03/01
- Re: [PATCH v5 5/7] hw/isa/vt82c686: Work around missing level sensitive irq in i8259 model, BALATON Zoltan, 2023/03/01
- Re: [PATCH v5 5/7] hw/isa/vt82c686: Work around missing level sensitive irq in i8259 model, David Woodhouse, 2023/03/01
- Re: [PATCH v5 5/7] hw/isa/vt82c686: Work around missing level sensitive irq in i8259 model, BALATON Zoltan, 2023/03/01
- Re: [PATCH v5 5/7] hw/isa/vt82c686: Work around missing level sensitive irq in i8259 model, David Woodhouse, 2023/03/01
- Re: [PATCH v5 5/7] hw/isa/vt82c686: Work around missing level sensitive irq in i8259 model, BALATON Zoltan, 2023/03/01
- Re: [PATCH v5 5/7] hw/isa/vt82c686: Work around missing level sensitive irq in i8259 model, David Woodhouse, 2023/03/02
- [PATCH] hw/intc/i8259: Implement legacy LTIM Edge/Level Bank Select, David Woodhouse, 2023/03/02
- Re: [PATCH] hw/intc/i8259: Implement legacy LTIM Edge/Level Bank Select,
David Woodhouse <=
- Re: [PATCH] hw/intc/i8259: Implement legacy LTIM Edge/Level Bank Select, BALATON Zoltan, 2023/03/02
- Re: [PATCH v5 5/7] hw/isa/vt82c686: Work around missing level sensitive irq in i8259 model, BALATON Zoltan, 2023/03/02
- Re: [PATCH v5 5/7] hw/isa/vt82c686: Work around missing level sensitive irq in i8259 model, Bernhard Beschow, 2023/03/01