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[Qemu-devel] [RFC v5 11/23] isa: Allow to un-assign I/O ports
From: |
Andreas Färber |
Subject: |
[Qemu-devel] [RFC v5 11/23] isa: Allow to un-assign I/O ports |
Date: |
Tue, 14 Jun 2011 04:37:45 +0200 |
Signed-off-by: Andreas Färber <address@hidden>
---
hw/isa-bus.c | 15 +++++++++++++++
hw/isa.h | 1 +
2 files changed, 16 insertions(+), 0 deletions(-)
diff --git a/hw/isa-bus.c b/hw/isa-bus.c
index bbafb75..6e33d80 100644
--- a/hw/isa-bus.c
+++ b/hw/isa-bus.c
@@ -105,6 +105,21 @@ void isa_init_ioport(ISADevice *dev, uint16_t ioport)
isa_init_ioport_range(dev, ioport, 1);
}
+void isa_discard_ioport_range(ISADevice *dev, uint16_t start, uint16_t length)
+{
+ int i, j;
+ for (i = 0; i < dev->nioports; i++) {
+ if (dev->ioports[i] == start) {
+ for (j = 0; j < dev->nioports - i; j++) {
+ dev->ioports[i + j] = dev->ioports[i + length + j];
+ }
+ dev->nioports -= length;
+ break;
+ }
+ }
+ assert(dev->nioports >= 0);
+}
+
static int isa_qdev_init(DeviceState *qdev, DeviceInfo *base)
{
ISADevice *dev = DO_UPCAST(ISADevice, qdev, qdev);
diff --git a/hw/isa.h b/hw/isa.h
index 1eefd17..fe1a20c 100644
--- a/hw/isa.h
+++ b/hw/isa.h
@@ -34,6 +34,7 @@ qemu_irq isa_get_irq(int isairq);
void isa_init_irq(ISADevice *dev, qemu_irq *p, int isairq);
void isa_init_ioport(ISADevice *dev, uint16_t ioport);
void isa_init_ioport_range(ISADevice *dev, uint16_t start, uint16_t length);
+void isa_discard_ioport_range(ISADevice *dev, uint16_t start, uint16_t length);
void isa_qdev_register(ISADeviceInfo *info);
ISADevice *isa_create(const char *name);
ISADevice *isa_try_create(const char *name);
--
1.7.5.3
- [Qemu-devel] [PATCH RFC 01/23] prep: Refactor CPU initialization, (continued)
- [Qemu-devel] [PATCH RFC 01/23] prep: Refactor CPU initialization, Andreas Färber, 2011/06/13
- [Qemu-devel] [RFC 02/23] prep: qdev'ify PCI, Andreas Färber, 2011/06/13
- [Qemu-devel] [RFC 03/23] prep: Prepare emulation of an IBM RS/6000 6015 / 7020 (40p), Andreas Färber, 2011/06/13
- [Qemu-devel] [RFC 04/23] 40p: Add PCI host, Andreas Färber, 2011/06/13
- [Qemu-devel] [RFC 05/23] prep: Add i82374 DMA emulation, Andreas Färber, 2011/06/13
- [Qemu-devel] [RFC 06/23] prep: Add i82378 PCI-to-ISA bridge emulation, Andreas Färber, 2011/06/13
- [Qemu-devel] [RFC 07/23] 40p: Add a PCI to ISA bridge (i82378), Andreas Färber, 2011/06/13
- [Qemu-devel] [PATCH v5 08/23] qdev: Add support for property type bool, Andreas Färber, 2011/06/13
- [Qemu-devel] [PATCH v5 09/23] qdev: Add helpers for reading properties, Andreas Färber, 2011/06/13
- [Qemu-devel] [RFC v5 10/23] isa: Provide enable and disable callbacks, Andreas Färber, 2011/06/13
- [Qemu-devel] [RFC v5 11/23] isa: Allow to un-assign I/O ports,
Andreas Färber <=
- [Qemu-devel] [RFC v5 12/23] isa: Allow to un-associate an IRQ, Andreas Färber, 2011/06/13
- [Qemu-devel] [RFC v5 13/23] parallel: Implement ISA state callbacks, Andreas Färber, 2011/06/13
- [Qemu-devel] [RFC v5 14/23] serial: Implement ISA state callbacks, Andreas Färber, 2011/06/13
- [Qemu-devel] [PATCH v5 15/23] fdc: Parametrize ISA base, IRQ and DMA, Andreas Färber, 2011/06/13
- [Qemu-devel] [RFC v5 16/23] fdc: Implement ISA state callbacks, Andreas Färber, 2011/06/13
- [Qemu-devel] [RFC v5 17/23] ide: Allow to discard I/O ports, Andreas Färber, 2011/06/13
- [Qemu-devel] [RFC v5 18/23] ide: Implement ISA state callbacks, Andreas Färber, 2011/06/13
- [Qemu-devel] [RFC v5 19/23] prep: Add pc87312 Super I/O emulation, Andreas Färber, 2011/06/13
- [Qemu-devel] [RFC 20/23] 40p: Add the Super I/O chip (pc87312), Andreas Färber, 2011/06/13
- [Qemu-devel] [RFC 21/23] 40p: Add an audio card and a keyboard, Andreas Färber, 2011/06/13