diff options
Diffstat (limited to 'hw/ide/sii3112.c')
| -rw-r--r-- | hw/ide/sii3112.c | 368 |
1 files changed, 368 insertions, 0 deletions
diff --git a/hw/ide/sii3112.c b/hw/ide/sii3112.c new file mode 100644 index 0000000000..e2f5562bb7 --- /dev/null +++ b/hw/ide/sii3112.c @@ -0,0 +1,368 @@ +/* + * QEMU SiI3112A PCI to Serial ATA Controller Emulation + * + * Copyright (C) 2017 BALATON Zoltan <balaton@eik.bme.hu> + * + * This work is licensed under the terms of the GNU GPL, version 2 or later. + * See the COPYING file in the top-level directory. + * + */ + +/* For documentation on this and similar cards see: + * http://wiki.osdev.org/User:Quok/Silicon_Image_Datasheets + */ + +#include <qemu/osdep.h> +#include <hw/ide/pci.h> +#include "trace.h" + +#define TYPE_SII3112_PCI "sii3112" +#define SII3112_PCI(obj) OBJECT_CHECK(SiI3112PCIState, (obj), \ + TYPE_SII3112_PCI) + +typedef struct SiI3112Regs { + uint32_t confstat; + uint32_t scontrol; + uint16_t sien; + uint8_t swdata; +} SiI3112Regs; + +typedef struct SiI3112PCIState { + PCIIDEState i; + MemoryRegion mmio; + SiI3112Regs regs[2]; +} SiI3112PCIState; + +/* The sii3112_reg_read and sii3112_reg_write functions implement the + * Internal Register Space - BAR5 (section 6.7 of the data sheet). + */ + +static uint64_t sii3112_reg_read(void *opaque, hwaddr addr, + unsigned int size) +{ + SiI3112PCIState *d = opaque; + uint64_t val = 0; + + switch (addr) { + case 0x00: + val = d->i.bmdma[0].cmd; + break; + case 0x01: + val = d->regs[0].swdata; + break; + case 0x02: + val = d->i.bmdma[0].status; + break; + case 0x03: + val = 0; + break; + case 0x04 ... 0x07: + val = bmdma_addr_ioport_ops.read(&d->i.bmdma[0], addr - 4, size); + break; + case 0x08: + val = d->i.bmdma[1].cmd; + break; + case 0x09: + val = d->regs[1].swdata; + break; + case 0x0a: + val = d->i.bmdma[1].status; + break; + case 0x0b: + val = 0; + break; + case 0x0c ... 0x0f: + val = bmdma_addr_ioport_ops.read(&d->i.bmdma[1], addr - 12, size); + break; + case 0x10: + val = d->i.bmdma[0].cmd; + val |= (d->regs[0].confstat & (1UL << 11) ? (1 << 4) : 0); /*SATAINT0*/ + val |= (d->regs[1].confstat & (1UL << 11) ? (1 << 6) : 0); /*SATAINT1*/ + val |= (d->i.bmdma[1].status & BM_STATUS_INT ? (1 << 14) : 0); + val |= d->i.bmdma[0].status << 16; + val |= d->i.bmdma[1].status << 24; + break; + case 0x18: + val = d->i.bmdma[1].cmd; + val |= (d->regs[1].confstat & (1UL << 11) ? (1 << 4) : 0); + val |= d->i.bmdma[1].status << 16; + break; + case 0x80 ... 0x87: + if (size == 1) { + val = ide_ioport_read(&d->i.bus[0], addr - 0x80); + } else if (addr == 0x80) { + val = (size == 2) ? ide_data_readw(&d->i.bus[0], 0) : + ide_data_readl(&d->i.bus[0], 0); + } else { + val = (1ULL << (size * 8)) - 1; + } + break; + case 0x8a: + val = (size == 1) ? ide_status_read(&d->i.bus[0], 4) : + (1ULL << (size * 8)) - 1; + break; + case 0xa0: + val = d->regs[0].confstat; + break; + case 0xc0 ... 0xc7: + if (size == 1) { + val = ide_ioport_read(&d->i.bus[1], addr - 0xc0); + } else if (addr == 0xc0) { + val = (size == 2) ? ide_data_readw(&d->i.bus[1], 0) : + ide_data_readl(&d->i.bus[1], 0); + } else { + val = (1ULL << (size * 8)) - 1; + } + break; + case 0xca: + val = (size == 1) ? ide_status_read(&d->i.bus[0], 4) : + (1ULL << (size * 8)) - 1; + break; + case 0xe0: + val = d->regs[1].confstat; + break; + case 0x100: + val = d->regs[0].scontrol; + break; + case 0x104: + val = (d->i.bus[0].ifs[0].blk) ? 0x113 : 0; + break; + case 0x148: + val = d->regs[0].sien << 16; + break; + case 0x180: + val = d->regs[1].scontrol; + break; + case 0x184: + val = (d->i.bus[1].ifs[0].blk) ? 0x113 : 0; + break; + case 0x1c8: + val = d->regs[1].sien << 16; + break; + default: + val = 0; + } + trace_sii3112_read(size, addr, val); + return val; +} + +static void sii3112_reg_write(void *opaque, hwaddr addr, + uint64_t val, unsigned int size) +{ + SiI3112PCIState *d = opaque; + + trace_sii3112_write(size, addr, val); + switch (addr) { + case 0x00: + case 0x10: + bmdma_cmd_writeb(&d->i.bmdma[0], val); + break; + case 0x01: + case 0x11: + d->regs[0].swdata = val & 0x3f; + break; + case 0x02: + case 0x12: + d->i.bmdma[0].status = (val & 0x60) | (d->i.bmdma[0].status & 1) | + (d->i.bmdma[0].status & ~val & 6); + break; + case 0x04 ... 0x07: + bmdma_addr_ioport_ops.write(&d->i.bmdma[0], addr - 4, val, size); + break; + case 0x08: + case 0x18: + bmdma_cmd_writeb(&d->i.bmdma[1], val); + break; + case 0x09: + case 0x19: + d->regs[1].swdata = val & 0x3f; + break; + case 0x0a: + case 0x1a: + d->i.bmdma[1].status = (val & 0x60) | (d->i.bmdma[1].status & 1) | + (d->i.bmdma[1].status & ~val & 6); + break; + case 0x0c ... 0x0f: + bmdma_addr_ioport_ops.write(&d->i.bmdma[1], addr - 12, val, size); + break; + case 0x80 ... 0x87: + if (size == 1) { + ide_ioport_write(&d->i.bus[0], addr - 0x80, val); + } else if (addr == 0x80) { + if (size == 2) { + ide_data_writew(&d->i.bus[0], 0, val); + } else { + ide_data_writel(&d->i.bus[0], 0, val); + } + } + break; + case 0x8a: + if (size == 1) { + ide_cmd_write(&d->i.bus[0], 4, val); + } + break; + case 0xc0 ... 0xc7: + if (size == 1) { + ide_ioport_write(&d->i.bus[1], addr - 0xc0, val); + } else if (addr == 0xc0) { + if (size == 2) { + ide_data_writew(&d->i.bus[1], 0, val); + } else { + ide_data_writel(&d->i.bus[1], 0, val); + } + } + break; + case 0xca: + if (size == 1) { + ide_cmd_write(&d->i.bus[1], 4, val); + } + break; + case 0x100: + d->regs[0].scontrol = val & 0xfff; + if (val & 1) { + ide_bus_reset(&d->i.bus[0]); + } + break; + case 0x148: + d->regs[0].sien = (val >> 16) & 0x3eed; + break; + case 0x180: + d->regs[1].scontrol = val & 0xfff; + if (val & 1) { + ide_bus_reset(&d->i.bus[1]); + } + break; + case 0x1c8: + d->regs[1].sien = (val >> 16) & 0x3eed; + break; + default: + val = 0; + } +} + +static const MemoryRegionOps sii3112_reg_ops = { + .read = sii3112_reg_read, + .write = sii3112_reg_write, + .endianness = DEVICE_LITTLE_ENDIAN, +}; + +/* the PCI irq level is the logical OR of the two channels */ +static void sii3112_update_irq(SiI3112PCIState *s) +{ + int i, set = 0; + + for (i = 0; i < 2; i++) { + set |= s->regs[i].confstat & (1UL << 11); + } + pci_set_irq(PCI_DEVICE(s), (set ? 1 : 0)); +} + +static void sii3112_set_irq(void *opaque, int channel, int level) +{ + SiI3112PCIState *s = opaque; + + trace_sii3112_set_irq(channel, level); + if (level) { + s->regs[channel].confstat |= (1UL << 11); + } else { + s->regs[channel].confstat &= ~(1UL << 11); + } + + sii3112_update_irq(s); +} + +static void sii3112_reset(void *opaque) +{ + SiI3112PCIState *s = opaque; + int i; + + for (i = 0; i < 2; i++) { + s->regs[i].confstat = 0x6515 << 16; + ide_bus_reset(&s->i.bus[i]); + } +} + +static void sii3112_pci_realize(PCIDevice *dev, Error **errp) +{ + SiI3112PCIState *d = SII3112_PCI(dev); + PCIIDEState *s = PCI_IDE(dev); + MemoryRegion *mr; + qemu_irq *irq; + int i; + + pci_config_set_interrupt_pin(dev->config, 1); + pci_set_byte(dev->config + PCI_CACHE_LINE_SIZE, 8); + + /* BAR5 is in PCI memory space */ + memory_region_init_io(&d->mmio, OBJECT(d), &sii3112_reg_ops, d, + "sii3112.bar5", 0x200); + pci_register_bar(dev, 5, PCI_BASE_ADDRESS_SPACE_MEMORY, &d->mmio); + + /* BAR0-BAR4 are PCI I/O space aliases into BAR5 */ + mr = g_new(MemoryRegion, 1); + memory_region_init_alias(mr, OBJECT(d), "sii3112.bar0", &d->mmio, 0x80, 8); + pci_register_bar(dev, 0, PCI_BASE_ADDRESS_SPACE_IO, mr); + mr = g_new(MemoryRegion, 1); + memory_region_init_alias(mr, OBJECT(d), "sii3112.bar1", &d->mmio, 0x88, 4); + pci_register_bar(dev, 1, PCI_BASE_ADDRESS_SPACE_IO, mr); + mr = g_new(MemoryRegion, 1); + memory_region_init_alias(mr, OBJECT(d), "sii3112.bar2", &d->mmio, 0xc0, 8); + pci_register_bar(dev, 2, PCI_BASE_ADDRESS_SPACE_IO, mr); + mr = g_new(MemoryRegion, 1); + memory_region_init_alias(mr, OBJECT(d), "sii3112.bar3", &d->mmio, 0xc8, 4); + pci_register_bar(dev, 3, PCI_BASE_ADDRESS_SPACE_IO, mr); + mr = g_new(MemoryRegion, 1); + memory_region_init_alias(mr, OBJECT(d), "sii3112.bar4", &d->mmio, 0, 16); + pci_register_bar(dev, 4, PCI_BASE_ADDRESS_SPACE_IO, mr); + + irq = qemu_allocate_irqs(sii3112_set_irq, d, 2); + for (i = 0; i < 2; i++) { + ide_bus_new(&s->bus[i], sizeof(s->bus[i]), DEVICE(dev), i, 1); + ide_init2(&s->bus[i], irq[i]); + + bmdma_init(&s->bus[i], &s->bmdma[i], s); + s->bmdma[i].bus = &s->bus[i]; + ide_register_restart_cb(&s->bus[i]); + } + qemu_register_reset(sii3112_reset, s); +} + +static void sii3112_pci_exitfn(PCIDevice *dev) +{ + PCIIDEState *d = PCI_IDE(dev); + int i; + + for (i = 0; i < 2; ++i) { + memory_region_del_subregion(&d->bmdma_bar, &d->bmdma[i].extra_io); + memory_region_del_subregion(&d->bmdma_bar, &d->bmdma[i].addr_ioport); + } +} + +static void sii3112_pci_class_init(ObjectClass *klass, void *data) +{ + DeviceClass *dc = DEVICE_CLASS(klass); + PCIDeviceClass *pd = PCI_DEVICE_CLASS(klass); + + pd->vendor_id = 0x1095; + pd->device_id = 0x3112; + pd->class_id = PCI_CLASS_STORAGE_RAID; + pd->revision = 1; + pd->realize = sii3112_pci_realize; + pd->exit = sii3112_pci_exitfn; + dc->desc = "SiI3112A SATA controller"; + set_bit(DEVICE_CATEGORY_STORAGE, dc->categories); +} + +static const TypeInfo sii3112_pci_info = { + .name = TYPE_SII3112_PCI, + .parent = TYPE_PCI_IDE, + .instance_size = sizeof(SiI3112PCIState), + .class_init = sii3112_pci_class_init, +}; + +static void sii3112_register_types(void) +{ + type_register_static(&sii3112_pci_info); +} + +type_init(sii3112_register_types) |