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i82378: Cleanup implementation

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- i82378 only exists on PCI bus; do not split implementation in 2 structs
- remove BARs, which are not specified in datasheet
- replace custom isa_mmio implementation by PCI bus IO region usage
- use QOM casts when required

Signed-off-by: Hervé Poussineau <hpoussin@reactos.org>
[AF: Style- and QOM-related changes, dropped no_user, reverted VMSD name]
Signed-off-by: Andreas Färber <andreas.faerber@web.de>
This commit is contained in:
Hervé Poussineau 2013-07-23 23:16:46 +02:00 committed by Andreas Färber
parent 768d7e2c7f
commit 5c9736789b
1 changed files with 43 additions and 171 deletions
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214
hw/isa/i82378.c
View file

@ -22,134 +22,28 @@
#include "hw/timer/i8254.h"
#include "hw/audio/pcspk.h"
//#define DEBUG_I82378
#ifdef DEBUG_I82378
#define DPRINTF(fmt, ...) \
do { fprintf(stderr, "i82378: " fmt , ## __VA_ARGS__); } while (0)
#else
#define DPRINTF(fmt, ...) \
do {} while (0)
#endif
#define BADF(fmt, ...) \
do { fprintf(stderr, "i82378 ERROR: " fmt , ## __VA_ARGS__); } while (0)
#define TYPE_I82378 "i82378"
#define I82378(obj) \
OBJECT_CHECK(I82378State, (obj), TYPE_I82378)
typedef struct I82378State {
PCIDevice parent_obj;
qemu_irq out[2];
qemu_irq *i8259;
MemoryRegion io;
MemoryRegion mem;
} I82378State;
typedef struct PCIi82378State {
PCIDevice pci_dev;
uint32_t isa_io_base;
I82378State state;
} PCIi82378State;
static const VMStateDescription vmstate_pci_i82378 = {
static const VMStateDescription vmstate_i82378 = {
.name = "pci-i82378",
.version_id = 0,
.minimum_version_id = 0,
.fields = (VMStateField[]) {
VMSTATE_PCI_DEVICE(pci_dev, PCIi82378State),
VMSTATE_PCI_DEVICE(parent_obj, I82378State),
VMSTATE_END_OF_LIST()
},
};
static void i82378_io_write(void *opaque, hwaddr addr,
uint64_t value, unsigned int size)
{
switch (size) {
case 1:
DPRINTF("%s: " TARGET_FMT_plx "=%02" PRIx64 "\n", __func__,
addr, value);
cpu_outb(addr, value);
break;
case 2:
DPRINTF("%s: " TARGET_FMT_plx "=%04" PRIx64 "\n", __func__,
addr, value);
cpu_outw(addr, value);
break;
case 4:
DPRINTF("%s: " TARGET_FMT_plx "=%08" PRIx64 "\n", __func__,
addr, value);
cpu_outl(addr, value);
break;
default:
abort();
}
}
static uint64_t i82378_io_read(void *opaque, hwaddr addr,
unsigned int size)
{
DPRINTF("%s: " TARGET_FMT_plx "\n", __func__, addr);
switch (size) {
case 1:
return cpu_inb(addr);
case 2:
return cpu_inw(addr);
case 4:
return cpu_inl(addr);
default:
abort();
}
}
static const MemoryRegionOps i82378_io_ops = {
.read = i82378_io_read,
.write = i82378_io_write,
.endianness = DEVICE_LITTLE_ENDIAN,
};
static void i82378_mem_write(void *opaque, hwaddr addr,
uint64_t value, unsigned int size)
{
switch (size) {
case 1:
DPRINTF("%s: " TARGET_FMT_plx "=%02" PRIx64 "\n", __func__,
addr, value);
cpu_outb(addr, value);
break;
case 2:
DPRINTF("%s: " TARGET_FMT_plx "=%04" PRIx64 "\n", __func__,
addr, value);
cpu_outw(addr, value);
break;
case 4:
DPRINTF("%s: " TARGET_FMT_plx "=%08" PRIx64 "\n", __func__,
addr, value);
cpu_outl(addr, value);
break;
default:
abort();
}
}
static uint64_t i82378_mem_read(void *opaque, hwaddr addr,
unsigned int size)
{
DPRINTF("%s: " TARGET_FMT_plx "\n", __func__, addr);
switch (size) {
case 1:
return cpu_inb(addr);
case 2:
return cpu_inw(addr);
case 4:
return cpu_inl(addr);
default:
abort();
}
}
static const MemoryRegionOps i82378_mem_ops = {
.read = i82378_mem_read,
.write = i82378_mem_write,
.endianness = DEVICE_LITTLE_ENDIAN,
};
static void i82378_request_out0_irq(void *opaque, int irq, int level)
{
I82378State *s = opaque;
@ -159,19 +53,30 @@ static void i82378_request_out0_irq(void *opaque, int irq, int level)
static void i82378_request_pic_irq(void *opaque, int irq, int level)
{
DeviceState *dev = opaque;
PCIDevice *pci = DO_UPCAST(PCIDevice, qdev, dev);
PCIi82378State *s = DO_UPCAST(PCIi82378State, pci_dev, pci);
I82378State *s = I82378(dev);
qemu_set_irq(s->state.i8259[irq], level);
qemu_set_irq(s->i8259[irq], level);
}
static void i82378_init(DeviceState *dev, I82378State *s)
static int i82378_initfn(PCIDevice *pci)
{
ISABus *isabus = ISA_BUS(qdev_get_child_bus(dev, "isa.0"));
ISADevice *pit;
DeviceState *dev = DEVICE(pci);
I82378State *s = I82378(dev);
uint8_t *pci_conf;
ISABus *isabus;
ISADevice *isa;
qemu_irq *out0_irq;
pci_conf = pci->config;
pci_set_word(pci_conf + PCI_COMMAND,
PCI_COMMAND_IO | PCI_COMMAND_MEMORY | PCI_COMMAND_MASTER);
pci_set_word(pci_conf + PCI_STATUS,
PCI_STATUS_DEVSEL_MEDIUM);
pci_config_set_interrupt_pin(pci_conf, 1); /* interrupt pin 0 */
isabus = isa_bus_new(dev, pci_address_space_io(pci));
/* This device has:
2 82C59 (irq)
1 82C54 (pit)
@ -182,9 +87,6 @@ static void i82378_init(DeviceState *dev, I82378State *s)
All devices accept byte access only, except timer
*/
qdev_init_gpio_out(dev, s->out, 2);
qdev_init_gpio_in(dev, i82378_request_pic_irq, 16);
/* Workaround the fact that i8259 is not qdev'ified... */
out0_irq = qemu_allocate_irqs(i82378_request_out0_irq, s, 1);
@ -193,10 +95,10 @@ static void i82378_init(DeviceState *dev, I82378State *s)
isa_bus_irqs(isabus, s->i8259);
/* 1 82C54 (pit) */
pit = pit_init(isabus, 0x40, 0, NULL);
isa = pit_init(isabus, 0x40, 0, NULL);
/* speaker */
pcspk_init(isabus, pit);
pcspk_init(isabus, isa);
/* 2 82C37 (dma) */
isa = isa_create_simple(isabus, "i82374");
@ -204,74 +106,44 @@ static void i82378_init(DeviceState *dev, I82378State *s)
/* timer */
isa_create_simple(isabus, "mc146818rtc");
}
static int pci_i82378_init(PCIDevice *dev)
{
PCIi82378State *pci = DO_UPCAST(PCIi82378State, pci_dev, dev);
I82378State *s = &pci->state;
uint8_t *pci_conf;
pci_conf = dev->config;
pci_set_word(pci_conf + PCI_COMMAND,
PCI_COMMAND_IO | PCI_COMMAND_MEMORY | PCI_COMMAND_MASTER);
pci_set_word(pci_conf + PCI_STATUS,
PCI_STATUS_DEVSEL_MEDIUM);
pci_conf[PCI_INTERRUPT_PIN] = 1; /* interrupt pin 0 */
memory_region_init_io(&s->io, OBJECT(pci), &i82378_io_ops, s,
"i82378-io", 0x00010000);
pci_register_bar(dev, 0, PCI_BASE_ADDRESS_SPACE_MEMORY, &s->io);
memory_region_init_io(&s->mem, OBJECT(pci), &i82378_mem_ops, s,
"i82378-mem", 0x01000000);
pci_register_bar(dev, 1, PCI_BASE_ADDRESS_SPACE_MEMORY, &s->mem);
/* Make I/O address read only */
pci_set_word(dev->wmask + PCI_COMMAND, PCI_COMMAND_SPECIAL);
pci_set_long(dev->wmask + PCI_BASE_ADDRESS_0, 0);
pci_set_long(pci_conf + PCI_BASE_ADDRESS_0, pci->isa_io_base);
isa_bus_new(&dev->qdev, pci_address_space_io(dev));
i82378_init(&dev->qdev, s);
return 0;
}
static Property i82378_properties[] = {
DEFINE_PROP_HEX32("iobase", PCIi82378State, isa_io_base, 0x80000000),
DEFINE_PROP_END_OF_LIST()
};
static void i82378_init(Object *obj)
{
DeviceState *dev = DEVICE(obj);
I82378State *s = I82378(obj);
static void pci_i82378_class_init(ObjectClass *klass, void *data)
qdev_init_gpio_out(dev, s->out, 2);
qdev_init_gpio_in(dev, i82378_request_pic_irq, 16);
}
static void i82378_class_init(ObjectClass *klass, void *data)
{
PCIDeviceClass *k = PCI_DEVICE_CLASS(klass);
DeviceClass *dc = DEVICE_CLASS(klass);
k->init = pci_i82378_init;
k->init = i82378_initfn;
k->vendor_id = PCI_VENDOR_ID_INTEL;
k->device_id = PCI_DEVICE_ID_INTEL_82378;
k->revision = 0x03;
k->class_id = PCI_CLASS_BRIDGE_ISA;
k->subsystem_vendor_id = 0x0;
k->subsystem_id = 0x0;
dc->vmsd = &vmstate_pci_i82378;
dc->vmsd = &vmstate_i82378;
set_bit(DEVICE_CATEGORY_BRIDGE, dc->categories);
dc->props = i82378_properties;
}
static const TypeInfo pci_i82378_info = {
.name = "i82378",
static const TypeInfo i82378_type_info = {
.name = TYPE_I82378,
.parent = TYPE_PCI_DEVICE,
.instance_size = sizeof(PCIi82378State),
.class_init = pci_i82378_class_init,
.instance_size = sizeof(I82378State),
.instance_init = i82378_init,
.class_init = i82378_class_init,
};
static void i82378_register_types(void)
{
type_register_static(&pci_i82378_info);
type_register_static(&i82378_type_info);
}
type_init(i82378_register_types)