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Re: [Qemu-devel] [PATCH v2] PS/2 keyboard Scancode Set 3 support


From: Kevin Wolf
Subject: Re: [Qemu-devel] [PATCH v2] PS/2 keyboard Scancode Set 3 support
Date: Mon, 14 Feb 2011 12:43:12 +0100
User-agent: Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.1.15) Gecko/20101027 Fedora/3.0.10-1.fc12 Thunderbird/3.0.10

Am 13.02.2011 11:07, schrieb Roy Tam:
> The following patch adds PS/2 keyboard Scancode Set 3 support.
> 
> Sign-off-by: Roy Tam <address@hidden>
> --
> v2: checkpatch.pl style fixes
> 
> diff --git a/hw/ps2.c b/hw/ps2.c
> index 762bb00..6bea0ef 100644
> --- a/hw/ps2.c
> +++ b/hw/ps2.c
> @@ -143,13 +143,85 @@ static void ps2_put_keycode(void *opaque, int keycode)
>  {
>      PS2KbdState *s = opaque;
> 
> -    /* XXX: add support for scancode sets 1 and 3 */
> -    if (!s->translate && keycode < 0xe0 && s->scancode_set == 2)
> -      {
> +    /* XXX: add support for scancode sets 1 */
> +    if (!s->translate && keycode < 0xe0 && s->scancode_set > 1) {
>          if (keycode & 0x80)
>              ps2_queue(&s->common, 0xf0);
>          keycode = ps2_raw_keycode[keycode & 0x7f];
> -      }
> +        if (s->scancode_set == 3) {
> +            switch (keycode) {
> +            case 0x1:
> +                keycode = 0x47;
> +                break;
> +            case 0x3:
> +                keycode = 0x27;
> +                break;
> +            case 0x4:
> +                keycode = 0x17;
> +                break;
> +            case 0x5:
> +                keycode = 0x7;
> +                break;
> +            case 0x6:
> +                keycode = 0xf;
> +                break;
> +            case 0x7:
> +                keycode = 0x5e;
> +                break;
> +            case 0x9:
> +                keycode = 0x4f;
> +                break;
> +            case 0xa:
> +                keycode = 0x3f;
> +                break;
> +            case 0xb:
> +                keycode = 0x2f;
> +                break;
> +            case 0xc:
> +                keycode = 0x1f;
> +                break;
> +            case 0x11:
> +                keycode = 0x19;
> +                break;
> +            case 0x14:
> +                keycode = 0x11;
> +                break;
> +            case 0x58:
> +                keycode = 0x14;
> +                break;
> +            case 0x5d:
> +                keycode = 0x5c;
> +                break;
> +            case 0x76:
> +                keycode = 0x8;
> +                break;
> +            case 0x77:
> +                keycode = 0x76;
> +                break;
> +            case 0x78:
> +                keycode = 0x56;
> +                break;
> +            case 0x79:
> +                keycode = 0x7c;
> +                break;
> +            case 0x7b:
> +                keycode = 0x84;
> +                break;
> +            case 0x7c:
> +                keycode = 0x7e;
> +                break;
> +            case 0x7e:
> +                keycode = 0x5f;
> +                break;
> +            case 0x83:
> +                keycode = 0x37;
> +                break;
> +            case 0x84:
> +                keycode = 0x57;
> +                break;
> +            }
> +        }
> +    }
>      ps2_queue(&s->common, keycode);
>  }

Wouldn't a second table like ps2_raw_keycode be better than a huge
switch block that translates from scancode set 2 to 3?

Kevin



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