diff options
| author | Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk> | 2021-09-24 08:37:52 +0100 |
|---|---|---|
| committer | Laurent Vivier <laurent@vivier.eu> | 2021-09-29 10:45:19 +0200 |
| commit | 03deab99401a57332d8f3bdba319a41eebc1d666 (patch) | |
| tree | 180f08b183953f00a2f0628e8daabd7d80442fda /include/hw/nubus | |
| parent | 90be1dea5017e518076f2a0d3ad26e158b92a1da (diff) | |
nubus: use bitmap to manage available slots
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>
Diffstat (limited to 'include/hw/nubus')
| -rw-r--r-- | include/hw/nubus/mac-nubus-bridge.h | 4 | ||||
| -rw-r--r-- | include/hw/nubus/nubus.h | 13 |
2 files changed, 10 insertions, 7 deletions
diff --git a/include/hw/nubus/mac-nubus-bridge.h b/include/hw/nubus/mac-nubus-bridge.h index 36aa098dd4..118d67267d 100644 --- a/include/hw/nubus/mac-nubus-bridge.h +++ b/include/hw/nubus/mac-nubus-bridge.h @@ -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) diff --git a/include/hw/nubus/nubus.h b/include/hw/nubus/nubus.h index 89b0976aaa..3eea2952d5 100644 --- a/include/hw/nubus/nubus.h +++ b/include/hw/nubus/nubus.h @@ -14,13 +14,12 @@ #include "qom/object.h" #define NUBUS_SUPER_SLOT_SIZE 0x10000000U -#define NUBUS_SUPER_SLOT_NB 0x9 +#define NUBUS_SUPER_SLOT_NB 0xe #define NUBUS_SLOT_SIZE 0x01000000 -#define NUBUS_SLOT_NB 0xF - -#define NUBUS_FIRST_SLOT 0x9 -#define NUBUS_LAST_SLOT 0xF +#define NUBUS_FIRST_SLOT 0x0 +#define NUBUS_LAST_SLOT 0xf +#define NUBUS_SLOT_NB (NUBUS_LAST_SLOT - NUBUS_FIRST_SLOT + 1) #define TYPE_NUBUS_DEVICE "nubus-device" OBJECT_DECLARE_SIMPLE_TYPE(NubusDevice, NUBUS_DEVICE) @@ -36,13 +35,13 @@ struct NubusBus { MemoryRegion super_slot_io; MemoryRegion slot_io; - int current_slot; + uint16_t slot_available_mask; }; struct NubusDevice { DeviceState qdev; - int slot; + int32_t slot; MemoryRegion super_slot_mem; MemoryRegion slot_mem; |