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