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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.
*/
#include "hw.h"
#include "pcmcia.h"
struct pxa2xx_pcmcia_s {
struct pcmcia_socket_s slot;
struct pcmcia_card_s *card;
target_phys_addr_t common_base;
target_phys_addr_t attr_base;
target_phys_addr_t io_base;
qemu_irq irq;
qemu_irq cd_irq;
};
static uint32_t pxa2xx_pcmcia_common_read(void *opaque,
target_phys_addr_t offset)
{
struct pxa2xx_pcmcia_s *s = (struct pxa2xx_pcmcia_s *) opaque;
if (s->slot.attached) {
offset -= s->common_base;
return s->card->common_read(s->card->state, offset);
}
return 0;
}
static void pxa2xx_pcmcia_common_write(void *opaque,
target_phys_addr_t offset, uint32_t value)
{
struct pxa2xx_pcmcia_s *s = (struct pxa2xx_pcmcia_s *) opaque;
if (s->slot.attached) {
offset -= s->common_base;
s->card->common_write(s->card->state, offset, value);
}
}
static uint32_t pxa2xx_pcmcia_attr_read(void *opaque,
target_phys_addr_t offset)
{
struct pxa2xx_pcmcia_s *s = (struct pxa2xx_pcmcia_s *) opaque;
if (s->slot.attached) {
offset -= s->attr_base;
return s->card->attr_read(s->card->state, offset);
}
return 0;
}
static void pxa2xx_pcmcia_attr_write(void *opaque,
target_phys_addr_t offset, uint32_t value)
{
struct pxa2xx_pcmcia_s *s = (struct pxa2xx_pcmcia_s *) opaque;
if (s->slot.attached) {
offset -= s->attr_base;
s->card->attr_write(s->card->state, offset, value);
}
}
static uint32_t pxa2xx_pcmcia_io_read(void *opaque,
target_phys_addr_t offset)
{
struct pxa2xx_pcmcia_s *s = (struct pxa2xx_pcmcia_s *) opaque;
if (s->slot.attached) {
offset -= s->io_base;
return s->card->io_read(s->card->state, offset);
}
return 0;
}
static void pxa2xx_pcmcia_io_write(void *opaque,
target_phys_addr_t offset, uint32_t value)
{
struct pxa2xx_pcmcia_s *s = (struct pxa2xx_pcmcia_s *) opaque;
if (s->slot.attached) {
offset -= s->io_base;
s->card->io_write(s->card->state, offset, value);
}
}
static CPUReadMemoryFunc *pxa2xx_pcmcia_common_readfn[] = {
pxa2xx_pcmcia_common_read,
pxa2xx_pcmcia_common_read,
pxa2xx_pcmcia_common_read,
};
static CPUWriteMemoryFunc *pxa2xx_pcmcia_common_writefn[] = {
pxa2xx_pcmcia_common_write,
pxa2xx_pcmcia_common_write,
pxa2xx_pcmcia_common_write,
};
static CPUReadMemoryFunc *pxa2xx_pcmcia_attr_readfn[] = {
pxa2xx_pcmcia_attr_read,
pxa2xx_pcmcia_attr_read,
pxa2xx_pcmcia_attr_read,
};
static CPUWriteMemoryFunc *pxa2xx_pcmcia_attr_writefn[] = {
pxa2xx_pcmcia_attr_write,
pxa2xx_pcmcia_attr_write,
pxa2xx_pcmcia_attr_write,
};
static CPUReadMemoryFunc *pxa2xx_pcmcia_io_readfn[] = {
pxa2xx_pcmcia_io_read,
pxa2xx_pcmcia_io_read,
pxa2xx_pcmcia_io_read,
};
static CPUWriteMemoryFunc *pxa2xx_pcmcia_io_writefn[] = {
pxa2xx_pcmcia_io_write,
pxa2xx_pcmcia_io_write,
pxa2xx_pcmcia_io_write,
};
static void pxa2xx_pcmcia_set_irq(void *opaque, int line, int level)
{
struct pxa2xx_pcmcia_s *s = (struct pxa2xx_pcmcia_s *) opaque;
if (!s->irq)
return;
qemu_set_irq(s->irq, level);
}
struct pxa2xx_pcmcia_s *pxa2xx_pcmcia_init(target_phys_addr_t base)
{
int iomemtype;
struct pxa2xx_pcmcia_s *s;
s = (struct pxa2xx_pcmcia_s *)
qemu_mallocz(sizeof(struct pxa2xx_pcmcia_s));
/* Socket I/O Memory Space */
s->io_base = base | 0x00000000;
iomemtype = cpu_register_io_memory(0, pxa2xx_pcmcia_io_readfn,
pxa2xx_pcmcia_io_writefn, s);
cpu_register_physical_memory(s->io_base, 0x04000000, iomemtype);
/* Then next 64 MB is reserved */
/* Socket Attribute Memory Space */
s->attr_base = base | 0x08000000;
iomemtype = cpu_register_io_memory(0, pxa2xx_pcmcia_attr_readfn,
pxa2xx_pcmcia_attr_writefn, s);
cpu_register_physical_memory(s->attr_base, 0x04000000, iomemtype);
/* Socket Common Memory Space */
s->common_base = base | 0x0c000000;
iomemtype = cpu_register_io_memory(0, pxa2xx_pcmcia_common_readfn,
pxa2xx_pcmcia_common_writefn, s);
cpu_register_physical_memory(s->common_base, 0x04000000, iomemtype);
if (base == 0x30000000)
s->slot.slot_string = "PXA PC Card Socket 1";
else
s->slot.slot_string = "PXA PC Card Socket 0";
s->slot.irq = qemu_allocate_irqs(pxa2xx_pcmcia_set_irq, s, 1)[0];
pcmcia_socket_register(&s->slot);
return s;
}
/* Insert a new card into a slot */
int pxa2xx_pcmcia_attach(void *opaque, struct pcmcia_card_s *card)
{
struct pxa2xx_pcmcia_s *s = (struct pxa2xx_pcmcia_s *) opaque;
if (s->slot.attached)
return -EEXIST;
if (s->cd_irq) {
qemu_irq_raise(s->cd_irq);
}
s->card = card;
s->slot.attached = 1;
s->card->slot = &s->slot;
s->card->attach(s->card->state);
return 0;
}
/* Eject card from the slot */
int pxa2xx_pcmcia_dettach(void *opaque)
{
struct pxa2xx_pcmcia_s *s = (struct pxa2xx_pcmcia_s *) opaque;
if (!s->slot.attached)
return -ENOENT;
s->card->detach(s->card->state);
s->card->slot = 0;
s->card = 0;
s->slot.attached = 0;
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)
{
struct pxa2xx_pcmcia_s *s = (struct pxa2xx_pcmcia_s *) opaque;
s->irq = irq;
s->cd_irq = cd_irq;
}
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