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/*
* Intel XScale PXA255/270 PC Card and CompactFlash Interface.
*
* Copyright (c) 2006 Openedhand Ltd.
* Written by Andrzej Zaborowski <balrog@zabor.org>
*
* This code is licensed under the GPLv2.
*
* Contributions after 2012-01-13 are licensed under the terms of the
* GNU GPL, version 2 or (at your option) any later version.
*/
#include "hw/hw.h"
#include "hw/sysbus.h"
#include "hw/pcmcia.h"
#include "hw/arm/pxa.h"
#define TYPE_PXA2XX_PCMCIA "pxa2xx-pcmcia"
#define PXA2XX_PCMCIA(obj) \
OBJECT_CHECK(PXA2xxPCMCIAState, obj, TYPE_PXA2XX_PCMCIA)
struct PXA2xxPCMCIAState {
SysBusDevice parent_obj;
PCMCIASocket slot;
MemoryRegion container_mem;
MemoryRegion common_iomem;
MemoryRegion attr_iomem;
MemoryRegion iomem;
qemu_irq irq;
qemu_irq cd_irq;
PCMCIACardState *card;
};
static uint64_t pxa2xx_pcmcia_common_read(void *opaque,
hwaddr offset, unsigned size)
{
PXA2xxPCMCIAState *s = (PXA2xxPCMCIAState *) opaque;
PCMCIACardClass *pcc;
if (s->slot.attached) {
pcc = PCMCIA_CARD_GET_CLASS(s->card);
return pcc->common_read(s->card, offset);
}
return 0;
}
static void pxa2xx_pcmcia_common_write(void *opaque, hwaddr offset,
uint64_t value, unsigned size)
{
PXA2xxPCMCIAState *s = (PXA2xxPCMCIAState *) opaque;
PCMCIACardClass *pcc;
if (s->slot.attached) {
pcc = PCMCIA_CARD_GET_CLASS(s->card);
pcc->common_write(s->card, offset, value);
}
}
static uint64_t pxa2xx_pcmcia_attr_read(void *opaque,
hwaddr offset, unsigned size)
{
PXA2xxPCMCIAState *s = (PXA2xxPCMCIAState *) opaque;
PCMCIACardClass *pcc;
if (s->slot.attached) {
pcc = PCMCIA_CARD_GET_CLASS(s->card);
return pcc->attr_read(s->card, offset);
}
return 0;
}
static void pxa2xx_pcmcia_attr_write(void *opaque, hwaddr offset,
uint64_t value, unsigned size)
{
PXA2xxPCMCIAState *s = (PXA2xxPCMCIAState *) opaque;
PCMCIACardClass *pcc;
if (s->slot.attached) {
pcc = PCMCIA_CARD_GET_CLASS(s->card);
pcc->attr_write(s->card, offset, value);
}
}
static uint64_t pxa2xx_pcmcia_io_read(void *opaque,
hwaddr offset, unsigned size)
{
PXA2xxPCMCIAState *s = (PXA2xxPCMCIAState *) opaque;
PCMCIACardClass *pcc;
if (s->slot.attached) {
pcc = PCMCIA_CARD_GET_CLASS(s->card);
return pcc->io_read(s->card, offset);
}
return 0;
}
static void pxa2xx_pcmcia_io_write(void *opaque, hwaddr offset,
uint64_t value, unsigned size)
{
PXA2xxPCMCIAState *s = (PXA2xxPCMCIAState *) opaque;
PCMCIACardClass *pcc;
if (s->slot.attached) {
pcc = PCMCIA_CARD_GET_CLASS(s->card);
pcc->io_write(s->card, offset, value);
}
}
static const MemoryRegionOps pxa2xx_pcmcia_common_ops = {
.read = pxa2xx_pcmcia_common_read,
.write = pxa2xx_pcmcia_common_write,
.endianness = DEVICE_NATIVE_ENDIAN
};
static const MemoryRegionOps pxa2xx_pcmcia_attr_ops = {
.read = pxa2xx_pcmcia_attr_read,
.write = pxa2xx_pcmcia_attr_write,
.endianness = DEVICE_NATIVE_ENDIAN
};
static const MemoryRegionOps pxa2xx_pcmcia_io_ops = {
.read = pxa2xx_pcmcia_io_read,
.write = pxa2xx_pcmcia_io_write,
.endianness = DEVICE_NATIVE_ENDIAN
};
static void pxa2xx_pcmcia_set_irq(void *opaque, int line, int level)
{
PXA2xxPCMCIAState *s = (PXA2xxPCMCIAState *) opaque;
if (!s->irq)
return;
qemu_set_irq(s->irq, level);
}
PXA2xxPCMCIAState *pxa2xx_pcmcia_init(MemoryRegion *sysmem,
hwaddr base)
{
DeviceState *dev;
PXA2xxPCMCIAState *s;
dev = qdev_create(NULL, TYPE_PXA2XX_PCMCIA);
sysbus_mmio_map(SYS_BUS_DEVICE(dev), 0, base);
s = PXA2XX_PCMCIA(dev);
qdev_init_nofail(dev);
return s;
}
static void pxa2xx_pcmcia_initfn(Object *obj)
{
SysBusDevice *sbd = SYS_BUS_DEVICE(obj);
PXA2xxPCMCIAState *s = PXA2XX_PCMCIA(obj);
memory_region_init(&s->container_mem, obj, "container", 0x10000000);
sysbus_init_mmio(sbd, &s->container_mem);
/* Socket I/O Memory Space */
memory_region_init_io(&s->iomem, obj, &pxa2xx_pcmcia_io_ops, s,
"pxa2xx-pcmcia-io", 0x04000000);
memory_region_add_subregion(&s->container_mem, 0x00000000,
&s->iomem);
/* Then next 64 MB is reserved */
/* Socket Attribute Memory Space */
memory_region_init_io(&s->attr_iomem, obj, &pxa2xx_pcmcia_attr_ops, s,
"pxa2xx-pcmcia-attribute", 0x04000000);
memory_region_add_subregion(&s->container_mem, 0x08000000,
&s->attr_iomem);
/* Socket Common Memory Space */
memory_region_init_io(&s->common_iomem, obj, &pxa2xx_pcmcia_common_ops, s,
"pxa2xx-pcmcia-common", 0x04000000);
memory_region_add_subregion(&s->container_mem, 0x0c000000,
&s->common_iomem);
s->slot.irq = qemu_allocate_irq(pxa2xx_pcmcia_set_irq, s, 0);
object_property_add_link(obj, "card", TYPE_PCMCIA_CARD,
(Object **)&s->card,
NULL, /* read-only property */
0, NULL);
}
/* Insert a new card into a slot */
int pxa2xx_pcmcia_attach(void *opaque, PCMCIACardState *card)
{
PXA2xxPCMCIAState *s = (PXA2xxPCMCIAState *) opaque;
PCMCIACardClass *pcc;
if (s->slot.attached) {
return -EEXIST;
}
if (s->cd_irq) {
qemu_irq_raise(s->cd_irq);
}
s->card = card;
pcc = PCMCIA_CARD_GET_CLASS(s->card);
s->slot.attached = true;
s->card->slot = &s->slot;
pcc->attach(s->card);
return 0;
}
/* Eject card from the slot */
int pxa2xx_pcmcia_detach(void *opaque)
{
PXA2xxPCMCIAState *s = (PXA2xxPCMCIAState *) opaque;
PCMCIACardClass *pcc;
if (!s->slot.attached) {
return -ENOENT;
}
pcc = PCMCIA_CARD_GET_CLASS(s->card);
pcc->detach(s->card);
s->card->slot = NULL;
s->card = NULL;
s->slot.attached = false;
if (s->irq) {
qemu_irq_lower(s->irq);
}
if (s->cd_irq) {
qemu_irq_lower(s->cd_irq);
}
return 0;
}
/* Who to notify on card events */
void pxa2xx_pcmcia_set_irq_cb(void *opaque, qemu_irq irq, qemu_irq cd_irq)
{
PXA2xxPCMCIAState *s = (PXA2xxPCMCIAState *) opaque;
s->irq = irq;
s->cd_irq = cd_irq;
}
static const TypeInfo pxa2xx_pcmcia_type_info = {
.name = TYPE_PXA2XX_PCMCIA,
.parent = TYPE_SYS_BUS_DEVICE,
.instance_size = sizeof(PXA2xxPCMCIAState),
.instance_init = pxa2xx_pcmcia_initfn,
};
static void pxa2xx_pcmcia_register_types(void)
{
type_register_static(&pxa2xx_pcmcia_type_info);
}
type_init(pxa2xx_pcmcia_register_types)
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