/* * 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.h" #include "pcmcia.h" #include "pxa.h" struct PXA2xxPCMCIAState { PCMCIASocket slot; PCMCIACardState *card; MemoryRegion common_iomem; MemoryRegion attr_iomem; MemoryRegion iomem; qemu_irq irq; qemu_irq cd_irq; }; static uint64_t pxa2xx_pcmcia_common_read(void *opaque, hwaddr offset, unsigned size) { PXA2xxPCMCIAState *s = (PXA2xxPCMCIAState *) opaque; if (s->slot.attached) { return s->card->common_read(s->card->state, offset); } return 0; } static void pxa2xx_pcmcia_common_write(void *opaque, hwaddr offset, uint64_t value, unsigned size) { PXA2xxPCMCIAState *s = (PXA2xxPCMCIAState *) opaque; if (s->slot.attached) { s->card->common_write(s->card->state, offset, value); } } static uint64_t pxa2xx_pcmcia_attr_read(void *opaque, hwaddr offset, unsigned size) { PXA2xxPCMCIAState *s = (PXA2xxPCMCIAState *) opaque; if (s->slot.attached) { return s->card->attr_read(s->card->state, offset); } return 0; } static void pxa2xx_pcmcia_attr_write(void *opaque, hwaddr offset, uint64_t value, unsigned size) { PXA2xxPCMCIAState *s = (PXA2xxPCMCIAState *) opaque; if (s->slot.attached) { s->card->attr_write(s->card->state, offset, value); } } static uint64_t pxa2xx_pcmcia_io_read(void *opaque, hwaddr offset, unsigned size) { PXA2xxPCMCIAState *s = (PXA2xxPCMCIAState *) opaque; if (s->slot.attached) { return s->card->io_read(s->card->state, offset); } return 0; } static void pxa2xx_pcmcia_io_write(void *opaque, hwaddr offset, uint64_t value, unsigned size) { PXA2xxPCMCIAState *s = (PXA2xxPCMCIAState *) opaque; if (s->slot.attached) { s->card->io_write(s->card->state, 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) { PXA2xxPCMCIAState *s; s = (PXA2xxPCMCIAState *) g_malloc0(sizeof(PXA2xxPCMCIAState)); /* Socket I/O Memory Space */ memory_region_init_io(&s->iomem, &pxa2xx_pcmcia_io_ops, s, "pxa2xx-pcmcia-io", 0x04000000); memory_region_add_subregion(sysmem, base | 0x00000000, &s->iomem); /* Then next 64 MB is reserved */ /* Socket Attribute Memory Space */ memory_region_init_io(&s->attr_iomem, &pxa2xx_pcmcia_attr_ops, s, "pxa2xx-pcmcia-attribute", 0x04000000); memory_region_add_subregion(sysmem, base | 0x08000000, &s->attr_iomem); /* Socket Common Memory Space */ memory_region_init_io(&s->common_iomem, &pxa2xx_pcmcia_common_ops, s, "pxa2xx-pcmcia-common", 0x04000000); memory_region_add_subregion(sysmem, base | 0x0c000000, &s->common_iomem); 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, PCMCIACardState *card) { PXA2xxPCMCIAState *s = (PXA2xxPCMCIAState *) 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) { PXA2xxPCMCIAState *s = (PXA2xxPCMCIAState *) opaque; if (!s->slot.attached) return -ENOENT; s->card->detach(s->card->state); s->card->slot = NULL; s->card = NULL; 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) { PXA2xxPCMCIAState *s = (PXA2xxPCMCIAState *) opaque; s->irq = irq; s->cd_irq = cd_irq; }