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nubus: use bitmap to manage available slots

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Convert nubus_device_realize() to use a bitmap to manage available slots to allow
for future Nubus devices to be plugged into arbitrary slots from the command line
using a new qdev "slot" parameter for nubus devices.

Update mac_nubus_bridge_init() to only allow slots 0x9 to 0xe on Macintosh machines
as documented in "Designing Cards and Drivers for the Macintosh Family".

Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20210924073808.1041-5-mark.cave-ayland@ilande.co.uk>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
This commit is contained in:
Mark Cave-Ayland 2021-09-24 08:37:52 +01:00 • committed by Laurent Vivier
parent 90be1dea50
commit 03deab9940
5 changed files with 41 additions and 14 deletions
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4
include/hw/nubus/mac-nubus-bridge.h
View file

@ -12,6 +12,10 @@
#include "hw/nubus/nubus.h"
#include "qom/object.h"
#define MAC_NUBUS_FIRST_SLOT 0x9
#define MAC_NUBUS_LAST_SLOT 0xe
#define MAC_NUBUS_SLOT_NB (MAC_NUBUS_LAST_SLOT - MAC_NUBUS_FIRST_SLOT + 1)
#define TYPE_MAC_NUBUS_BRIDGE "mac-nubus-bridge"
OBJECT_DECLARE_SIMPLE_TYPE(MacNubusState, MAC_NUBUS_BRIDGE)